Would night vision goggles work in absolute darkness? And other interesting facts about them

 

If you have ever tried a pair of night vision goggles, you most probably were impressed with their ability to help you see in the dark. Yet, you might have also wondered about their ability to do so when it’s pitch dark outside. The thing is that this type of goggles works in a particular manner; they take whatever light the environment supplies and intensify it.

That is the reason why they are often named image intensifiers, and that should give you a clear clue on how they truly work. Because the light used for this purpose is often infrared not visible with the naked eye, we often feel tempted to believe that it is genuinely dark outside. That is why night vision goggles might seem like such an excellent device.

So, the question starting this article still stands. Can a pair of such goggles work in absolute darkness? The direct and straightforward answer would be ‘no’, but a more elaborate response is needed, and this is the reason why.

Absolute darkness exists in only exceptional circumstances

Do you still recall how we talked about the infrared light just earlier? What we perceive as complete darkness with the naked eye is anything but, from a physics standpoint. What we don’t catch with our normal vision, our goggles do, and that is any tiny amount of light that comes from the environment.

Something as faint as the light given by the moon and the flickering stars up above can be harnessed and used by the goggles to present you with an accurate image of your surroundings. It may sound like as long as you are out in the open, there is a chance that the celestial bodies give enough light to ensure that your goggles will work.

What about other places? What about the bottom of a cave, or anywhere the natural light of the moon and the stars cannot reach? Again, there is an explanation why you can still use your goggles or a night vision monocular even when you are in such locations.

The thing is that everything that surrounds us and still has a temperature that is above absolute zero still emits some infrared light. That is enough for your night vision goggles to work, and that is why they are so useful for many categories of users. The chances are that you will not encounter absolute darkness conditions as a general rule.

 

Why are some goggles more powerful than others?

Taking into account all the information supplied earlier, you are probably wondering if just any goggles will work. The truth is that some models work better than others, due to how they are designed and especially the quality of the optics installed on them. For instance, models that have multi-coated lenses, and also have some anti-reflective properties, will do a better job at harnessing the light from your surroundings to provide you with an image that is not deterred by insufficient light.

Another feature that might significantly improve the abilities of a pair of goggle is a built-in illuminator. This will create more infrared light for the goggles to catch and process for the image you can then see through them. One thing you should bear in mind, however, is that no illuminator can provide the same viewing distance that you would be able to take advantage of in normal light conditions.

Nonetheless, the better equipped your goggles are, the better the quality of the image you will be able to observe through their lenses.

Are there other devices that can be used?

Night vision goggles are not the only devices you can take advantage of to see more clearly in the dark. They do have their benefits, as they are easy to use and very convenient regarding portability and the like. Some people opt for survival monoculars when they want to gauge their surroundings, but they could, just as well, prefer goggles due to the advantages mentioned earlier.

Nonetheless, there are situations when the use of other types of devices is required. For instance, firefighters need other aids to see through smoke. Thermal imaging is the technology they need to see through the blanket of smoke that can cover a location that is engulfed by flames. There are special optics-based devices that cater to such specific needs, so night vision goggles don’t have such extensive applications.

Where thermal imaging devices differ from regular goggles to be used at night is at their ability to capture the heat signature provided by any body with a temperature above absolute zero. Computer-enhanced screens also contribute to the efficiency of these devices that are often used to identify survivors in various emergency conditions.

 

Conclusion

The purpose of this article is to offer you a comprehensive answer to the question in the title. While night vision goggles cannot work in absolute darkness, the thing is that most of the time, you don’t need them to deliver such impossible performance. For what they are created to do, they do a fantastic job, as they can work with sources of light that are invisible to the naked eye.

You must bear in mind that these goggles work with the tiniest of light sources that are delivered by the environment. However, since almost everything around us is capable of emitting light, even if it is the infrared kind, your goggles can catch this light and turn it into the image you will be able to observe through your goggles.

When presented with various options of night vision goggles, it is preferable that you go for a model that comes with enhanced optics and a built-in illuminator, as this helps a great deal with rendering a clearer image through your goggles.

For more demanding applications, such as identifying survivors in case of emergencies, other optics-based products such as thermal imaging devices are more indicated.

 

 

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If you have ever watched a movie in which night vision was used, or you have ever used a device that takes advantage of this technology to help people see in the dark, you have most probably noticed that the image shown through such devices is always green. The two come together so well that the moment someone mentions night vision binoculars to you, that instantly brings in front of your eyes that green image you are so familiar with.

The advantages of seeing what our eyes can’t see in the dark are tremendous. For military applications, as well as civilian operations, night vision technology offers tremendous benefits. It can help locate survivors of natural cataclysms, and it can pinpoint the location of an enemy. As a layman, you are, however, interested in learning why the image of this type of vision is green. Let’s make it all clear.

When was this technology invented?

You might be surprised to learn that this technology has been around for a while, being used extensively in World War II. Both the US military and the Reich, worked on this technology before and during the war, with the purpose of using it on the battlefield. Both the infantry and the tank divisions used it to identify the location of their enemies.

However, the night vision technology used more than half a century ago was nothing like the elegant portable night vision goggles we’re practically identifying it with. The devices used during those times were bulky and needed manpower to be transported and used in the field.

The idea of making this technology portable, as well as the possibilities, did not occur on a practical level until the Vietnam War when the US military began to use the first devices that could be worn by a soldier on his head.

The main principle that night vision goggles use remains the same: it is the use of whatever light is emitted by the surrounding environment, coupled with image intensification technologies. No matter how advanced night vision is today, you should remember that the same original idea that was used during the aforementioned conflicts continues to stay at its foundation.

So, what’s the idea with the green image?

To understand how the green vision occurs, we need to learn a bit more about all the technologies that are involved. These technologies are employed on goggles, as well as scopes and night vision cameras. They are essential for how the green image occurs, and we will approach them as follows.

Thermal imaging

This technology is capable of telling the heat signature of an object against the surrounding environment. In other words, it is capable of telling when the temperature of the target is different from the rest of the objects around.

Active illumination

While thermal imaging sounds something that is used in military-grade operations, illumination is pretty straightforward. The image intensification used by goggles, or other optical devices, might need more light input to process and render the image before your eyes when you look through them.

The illumination used is very close to the infrared band. By adding more light to the environment, the devices create better conditions for the night vision device to harness it and transform it into an image.

Image intensification

We have already mentioned it a few times, and now it’s the moment to reveal that this is the technology responsible for the green image you see through your night vision monocular, goggles, scope, or any other similar device, designed to offer you the ability to see in the dark.

 

How does image intensification create the image you see?

What happens when we look through any vision device is that the image intensification technology employed on the device takes the light emitted by the celestial bodies and multiplies it. That is why we can get a pretty good image of what surrounds us.

As you can guess by now, it is not possible for your goggles, monocular, or binoculars to work in pitch dark, but, the thing is, most of the time, you won’t need your device to perform in such a manner. Absolute darkness is difficult to achieve, so situations that would meet such conditions are extremely rare.

What about the green vision?

To get our explanation farther here is some more information that will help you understand how night vision devices work. When the photons from the light around hit the lens, they have all the colors. The thing is that the photons are turned into electrons, and then all the information which might relate to colors perceived by our eyes/brain turn only into black and white.

The explanation is that the image intensification element is made from phosphorus. As you may well know, phosphorus is green, and its luminance capability manages to capture the light from the surrounding environment and present it to you. Therefore, the image you will see is green, as well.

 

But why is phosphorus used?

It is not by accident that these devices use phosphorus. It all has to do with something called chromatic sensitivity. This ability is related to how sensitive the human eye is toward different colors. From the entire spectrum, the color green is the absolute winner, and that is why night vision goggles and other similar products are made with phosphorus.

To go even deeper, this chromatic sensitivity of the human eye toward the green color means that we perceive more shades of this color than of any other. What happens when our eyes can tell the differences between different values of green is that we can perceive shapes and objects.

Another advantage identified by specialists in this field is that we can tolerate looking at the green color for more extended periods of time than at any other color. The computer screens are green for this reason, as well.

And now you know why the night vision showed through various devices designed to help you see in the dark is green, and how that is beneficial for the human eye.

 

 

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To see in the dark, all the optical devices that might be helpful for this purpose need to have a source of light present. They are what specialists call light or image intensifiers, and they cannot present you with an image of your surroundings in conditions of absolute darkness. Of course, such a thing would be difficult to achieve, so, for the most part, night vision goggles and other similar devices can do a pretty good job of helping you see in the dark.

However, since such devices use the exterior light to enhance the image in front of the people handling them, there was another problem to address. Strong light sources, suddenly appearing in the field of view, could create such conditions that users of night vision devices risked temporary blindness.

How have night vision devices evolved?

Since the point of using a night vision item could become null if a simple flashlight was pointed at the person using it, specialists in the field thought about creating devices that were not as susceptible to dangers such as the one mentioned just earlier.

For this particular reason, something called a light limiter was invented. Today, all the modern equipment used for night vision comes with such light limiters. The role of this feature, as you may well suspect, is to make sure that light sources that are strong enough to mess up with the intensifying light feature of your gear will no longer interfere.

But how does such a unit work? You may wonder. The point of using night vision is to detect the light radiation that is undetectable for the naked eye. Making use of infrared and ultraviolet radiation, the night vision devices that are currently available, for military and civilian use, ensure that the spectrum for detecting light is enlarged and enhanced.

At the same time, the technology used makes sure that what light sources are too intense don’t hurt the users’ eyes, which is the primary role of the limiters we talked about.

 

Understanding the main night vision options

Without having to become an expert in optics, you might like to learn a few things about the main options used today for night vision. While the goggles used by military experts and seasoned hunters might use image intensifiers, other devices, such as night vision binoculars, might come with active illumination features, too. We will explain both types right away, as that will serve as an excellent introduction to the kinds of light that play a role in how night vision works.

 

What are image intensifiers?

Image intensifiers are devices using a type of technology that focuses on artificially increasing (amplifying) the number of photons emitted by the sources of light surrounding us. Be it that you want to hunt under the light of the moon and the stars, these celestial bodies will produce enough illumination that can be gathered by your night vision device and enhanced.

In other words, the light received through the lenses is multiplied, resulting in an image that you can see. The devices that use this type of image enhancement are called NVDs, which is short for night-vision devices. By enhancing the visible light, as well as the infrared light that is not visible with the naked eye, these units are capable of providing you with the ability to see in the dark.

You can find some highly sophisticated devices, and they can be used in a broad array of applications. You might not necessarily see a cheap night vision monocular that can provide outstanding results, but there are products even intended for civilian applications that can offer such outstanding performance.

How is the active illumination used?

The other popular option that you have at your disposal is active illumination. This kind of technology uses the image intensification technology, but it also adds a source of light. The said source of light is infrared, and its central role is to add more light to the surroundings so that the results are enhanced.

Shortwave infrared light can be used by more advanced devices, for the simple reason that the shorter the waves, the more light energy they give. Wavelength is an exciting aspect we should talk about. From the visible light spectrum, violet comes with the shortest wavelength, and therefore, it provides the most energy. For this reason, the violet light gives the most radiation.

However, violet is part of the visible light spectrum, as mentioned, and that is why you need to take advantage of the infrared light, which is part of the invisible (to the naked eye) light spectrum.

 

What are the types of light used by night vision technology?

Now that you know more about the night vision technology and its types, let’s make everything clear regarding the light used for making it possible. The infrared spectrum comes in three forms, as follows:

Near-infrared – the wavelength for this type of light is between 0.7 and 1.3 microns; it is at the border with visible light.

Mid-infrared – the wavelengths for this type of light is between 1.3 and 3 microns; many electronic devices that are readily available use this type of light.

Thermal-infrared – it takes most of the infrared spectrum; its wavelength varies between 3 to more than 30 microns.

Why are these light types important?

Night vision would not be possible without a source of light. Visible light, as is the one given by the surroundings, celestial bodies, and not only, is harnessed by night vision equipment to create that image you can see through your lenses. The other type of light used belongs to the light spectrum that is not visible with the naked eye, and it is called infrared.

You can use night vision today for a wide variety of applications. For surveillance, hunting, and many other purposes, it can prove a valuable tool. Learning about it can also help you understand how it works, and expand your general knowledge on products you use.

 

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If you are a motorcycle rider, you’ve probably asked yourself why the specialists recommend that one uses special goggles while driving his/her bike. To be of help to you, we have composed this list of reasons why it is vital that one invests in an item of this kind.

They keep your eyes protected

One of the most annoying things that can happen to you while riding your motorcycle is having debris and insects getting in your eyes. This is not only irritating and distracting to the rider, but it can also cause damage to one’s eyes.

What is more, there have been cases where motorcyclists that drove without eye protection were left blind after bugs and road debris hit their eyes while riding at high speeds. Therefore, investing in high-quality eye gear is a must if you want to make sure that your face is protected against such unfortunate accidents.

Goggles are particularly important if you do not have a helmet that offers full coverage of your face. However, before you invest in any motorcycle and ATV goggles, you should make sure that the product that you have opted for meets the required standards.

 

No more side impacts

When it comes to deciding between glasses and goggles, some users seem to prefer using sunglasses as a means of protection. However, it has been proven that goggles are better at keeping your eyes safe. This is the case because goggles seal themselves around your eyes better.

Furthermore, goggles can provide better protection from side impact. Hence, if a bug hits you while you are looking off the side, you won’t have to deal with the painful consequences. Still, it is worth pointing out that newer sunglasses models are also worth your attention as they have enough lens curvature to also deflect side impacts.

 

They protect you against the wind

If you ride at high speeds, you probably already know that glasses simply cannot keep the wind from entering at the edges. As a result of the impact of the wind, some riders end up suffering from a condition called the dry eye. In other words, your eye is predisposed to drying out faster than the blinking can replace the lost moisture.

This condition is not only highly uncomfortable. According to the specialists, in the long run, eye dry can lead to eye inflammation, a predisposition for eye infections, corneal ulcers and so on. From this point of view, goggles are the perfect choice for eye protection as they can create a seal around your eyes that shields them from dust and drying out.

 

Better fitting

One common problem that bikers have with their eye protection is the fact that it can fall off if it does not fit well. However, such issues can be avoided if you decide to invest in goggles, as these gadgets usually feature an adjustable nose piece and strap that guarantees an excellent fit, regardless of the shape of your head.

They can be used off-road

If you like riding off the road, near fellow bikers, you probably know just how difficult it is to deal with the dust that gets in your eyes. Because of these challenging conditions, some visors are not suitable for the job.

However, differently from glasses, when wearing goggles, because of the tight seal that they form, dust is not able to cling to the inside lens surface. Because of this, most MX racers invest in racing goggles, rather than in glasses. Still, you should know that the models that they purchase have been specially made for off-road riding and, thus, they have a better design.

 

They are versatile

Another significant advantage that goggles have is that they are quite versatile. Therefore, when not worn while riding, they can be utilized when practicing extreme sports where eye protection is crucial.

This is possible because motorcycle goggles come equipped with various anti-glare coatings, UV protection filters, and other similar practical features.

 

They are compatible with useful accessories

Last but not least, goggles are worthy of your attention as they are compatible with a handful of accessories that can make the experience of riding even more enjoyable, no matter the weather conditions.

For instance, you can purchase an accessory called a tear-off. A tear-off is a thin film that covers the lens of the goggle, and that can be used to instantly clean your field of view if your vision is suddenly impaired because of the dirt and debris.

Moreover, you can also purchase roll-offs, an alternative to tear offs, as they do pretty much the same thing. What is more, some of the available goggles also come provided with replacement lenses. This way, when your goggles get too scratched, you can just swap the old lenses out, and place the new ones in.

 

 

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Virtual reality is a new concept that has gained a considerable amount of popularity recently, as the ability to lose yourself in a new version of reality is very appealing to most of us. However, every time somebody immerses himself/herself into the thrilling worlds made available by virtual reality, he/she has to isolate himself/herself by turning off the lights, muffing any outside noise and making sure that the real world is completely blocked out.

After assessing the situation, some modern arcades have decided to take a lesson from the old gaming bars and to integrate the social element into the virtual reality gaming experience. Now, one can go out, put on a pair of goggles that resemble some regular goggles for triathlon and play while still hanging out with friends and enjoying a drink. As a result, it could be said that, with the emersion of VR arcades, VR has taken a big leap in becoming an essential part of today’s entertainment scene.

How it works

The whole idea was seen as a way to add VR based games and experiences into the reality of pubs and bars. However, because the creators of the concept knew that drinking and playing VR games is not an ideal mix, some modifications to the bars where these modern arcades are placed have been made.

For instance, venues of this type are stocked with special headsets and audio straps that are tied up to the ceiling by using an extendable seat belt. To prevent the players from injuring themselves, they are supplied with a giant extra padded paying area.

Consequently, the players don’t roam too far, and they don’t end up bumping into clients that are not connected to the VR game.

Thanks to the success of the concept, some venues have started to treat VR nights in a similar way as major sporting events. Hence, the non-playing customers get to see a peak of what’s happening inside the game as in-game footage is streamed live on large TVs.

Therefore, other punters get to watch their friends playing while sipping a drink at the bar and waiting for their turn to play. What is more, if you are not there to necessarily enjoy the VR experience, you can just as well ignore the screens. Consequently, it could be said that the recipe that guarantees the success of the idea is that VR is only a small part of the whole going out to a bar experience.

 

Is it popular?

At this time, numerous such arcades function all around the world. For instance, there are a few pubs that use VR in London and Vienna. What is more, there is a high profile park that uses VR in Guizhou, China. According to the specialists, in the near future, we can expect VR to be just a normal part of the overall social experience.

Those that have gone out to venues of this kind consider them a cool, enjoyable experience. On top of that, bars of this type are now considered an excellent idea for a first date, primarily by those that are familiar with VR games. Therefore, it could be said that, in the future, going out might be a completely different experience, as playing darts in your local pub could soon be replaced by playing in VR instead!

Who came up with the concept?

The idea was popularized by VR Concept, a British company founded by Oli Lane and Anthony Nixon. While Lane has previously worked in the field of satellite propulsion, Nixon has gained experienced while developing IT infrastructure.

By combining their forces, they have managed to create a fun, entertaining space where people have a good time. As a plus, they have started to change the stereotype that arcades are places were only nerds go.

Although their chain of venues is relatively new, they currently draw quite a crowd, and they are seen as the place to go if you want to impress your friends by taking them to a cool and interesting location.

 

Is it safe?

Well, pretty much yes. Given that the players get to perform in a delineated space that has extra padding and a special infrastructure, there are not many risks. As a plus, after testing their concept and after seeing where things don’t go as planned, Nixon and Lane have made all the changes necessary so that their clientele is happy and completely satisfied with the experience.

Quality-wise, these venues are packed with top-notch equipment and with the latest gadgets and devices when it comes to VR. These new arcade pubs are suitable for both experienced players and newbies that are looking for a unique fun experience.

So, if you love a new challenge, and you are ready to trade your awesome tactical goggles for a pair of VR goggles, feel free to take a chance and give these bars a go!

 

 

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Why is night vision green?

 

If you have ever tried a pair of night vision goggles, you most probably were impressed with their ability to help you see in the dark. Yet, you might have also wondered about their ability to do so when it’s pitch dark outside. The thing is that this type of goggles works in a particular manner; they take whatever light the environment supplies and intensify it.

That is the reason why they are often named image intensifiers, and that should give you a clear clue on how they truly work. Because the light used for this purpose is often infrared not visible with the naked eye, we often feel tempted to believe that it is genuinely dark outside. That is why night vision goggles might seem like such an excellent device.

So, the question starting this article still stands. Can a pair of such goggles work in absolute darkness? The direct and straightforward answer would be ‘no’, but a more elaborate response is needed, and this is the reason why.

Absolute darkness exists in only exceptional circumstances

Do you still recall how we talked about the infrared light just earlier? What we perceive as complete darkness with the naked eye is anything but, from a physics standpoint. What we don’t catch with our normal vision, our goggles do, and that is any tiny amount of light that comes from the environment.

Something as faint as the light given by the moon and the flickering stars up above can be harnessed and used by the goggles to present you with an accurate image of your surroundings. It may sound like as long as you are out in the open, there is a chance that the celestial bodies give enough light to ensure that your goggles will work.

What about other places? What about the bottom of a cave, or anywhere the natural light of the moon and the stars cannot reach? Again, there is an explanation why you can still use your goggles or a night vision monocular even when you are in such locations.

The thing is that everything that surrounds us and still has a temperature that is above absolute zero still emits some infrared light. That is enough for your night vision goggles to work, and that is why they are so useful for many categories of users. The chances are that you will not encounter absolute darkness conditions as a general rule.

 

Why are some goggles more powerful than others?

Taking into account all the information supplied earlier, you are probably wondering if just any goggles will work. The truth is that some models work better than others, due to how they are designed and especially the quality of the optics installed on them. For instance, models that have multi-coated lenses, and also have some anti-reflective properties, will do a better job at harnessing the light from your surroundings to provide you with an image that is not deterred by insufficient light.

Another feature that might significantly improve the abilities of a pair of goggle is a built-in illuminator. This will create more infrared light for the goggles to catch and process for the image you can then see through them. One thing you should bear in mind, however, is that no illuminator can provide the same viewing distance that you would be able to take advantage of in normal light conditions.

Nonetheless, the better equipped your goggles are, the better the quality of the image you will be able to observe through their lenses.

Are there other devices that can be used?

Night vision goggles are not the only devices you can take advantage of to see more clearly in the dark. They do have their benefits, as they are easy to use and very convenient regarding portability and the like. Some people opt for survival monoculars when they want to gauge their surroundings, but they could, just as well, prefer goggles due to the advantages mentioned earlier.

Nonetheless, there are situations when the use of other types of devices is required. For instance, firefighters need other aids to see through smoke. Thermal imaging is the technology they need to see through the blanket of smoke that can cover a location that is engulfed by flames. There are special optics-based devices that cater to such specific needs, so night vision goggles don’t have such extensive applications.

Where thermal imaging devices differ from regular goggles to be used at night is at their ability to capture the heat signature provided by any body with a temperature above absolute zero. Computer-enhanced screens also contribute to the efficiency of these devices that are often used to identify survivors in various emergency conditions.

 

Conclusion

The purpose of this article is to offer you a comprehensive answer to the question in the title. While night vision goggles cannot work in absolute darkness, the thing is that most of the time, you don’t need them to deliver such impossible performance. For what they are created to do, they do a fantastic job, as they can work with sources of light that are invisible to the naked eye.

You must bear in mind that these goggles work with the tiniest of light sources that are delivered by the environment. However, since almost everything around us is capable of emitting light, even if it is the infrared kind, your goggles can catch this light and turn it into the image you will be able to observe through your goggles.

When presented with various options of night vision goggles, it is preferable that you go for a model that comes with enhanced optics and a built-in illuminator, as this helps a great deal with rendering a clearer image through your goggles.

For more demanding applications, such as identifying survivors in case of emergencies, other optics-based products such as thermal imaging devices are more indicated.

 

 

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If you have ever watched a movie in which night vision was used, or you have ever used a device that takes advantage of this technology to help people see in the dark, you have most probably noticed that the image shown through such devices is always green. The two come together so well that the moment someone mentions night vision binoculars to you, that instantly brings in front of your eyes that green image you are so familiar with.

The advantages of seeing what our eyes can’t see in the dark are tremendous. For military applications, as well as civilian operations, night vision technology offers tremendous benefits. It can help locate survivors of natural cataclysms, and it can pinpoint the location of an enemy. As a layman, you are, however, interested in learning why the image of this type of vision is green. Let’s make it all clear.

When was this technology invented?

You might be surprised to learn that this technology has been around for a while, being used extensively in World War II. Both the US military and the Reich, worked on this technology before and during the war, with the purpose of using it on the battlefield. Both the infantry and the tank divisions used it to identify the location of their enemies.

However, the night vision technology used more than half a century ago was nothing like the elegant portable night vision goggles we’re practically identifying it with. The devices used during those times were bulky and needed manpower to be transported and used in the field.

The idea of making this technology portable, as well as the possibilities, did not occur on a practical level until the Vietnam War when the US military began to use the first devices that could be worn by a soldier on his head.

The main principle that night vision goggles use remains the same: it is the use of whatever light is emitted by the surrounding environment, coupled with image intensification technologies. No matter how advanced night vision is today, you should remember that the same original idea that was used during the aforementioned conflicts continues to stay at its foundation.

So, what’s the idea with the green image?

To understand how the green vision occurs, we need to learn a bit more about all the technologies that are involved. These technologies are employed on goggles, as well as scopes and night vision cameras. They are essential for how the green image occurs, and we will approach them as follows.

Thermal imaging

This technology is capable of telling the heat signature of an object against the surrounding environment. In other words, it is capable of telling when the temperature of the target is different from the rest of the objects around.

Active illumination

While thermal imaging sounds something that is used in military-grade operations, illumination is pretty straightforward. The image intensification used by goggles, or other optical devices, might need more light input to process and render the image before your eyes when you look through them.

The illumination used is very close to the infrared band. By adding more light to the environment, the devices create better conditions for the night vision device to harness it and transform it into an image.

Image intensification

We have already mentioned it a few times, and now it’s the moment to reveal that this is the technology responsible for the green image you see through your night vision monocular, goggles, scope, or any other similar device, designed to offer you the ability to see in the dark.

 

How does image intensification create the image you see?

What happens when we look through any vision device is that the image intensification technology employed on the device takes the light emitted by the celestial bodies and multiplies it. That is why we can get a pretty good image of what surrounds us.

As you can guess by now, it is not possible for your goggles, monocular, or binoculars to work in pitch dark, but, the thing is, most of the time, you won’t need your device to perform in such a manner. Absolute darkness is difficult to achieve, so situations that would meet such conditions are extremely rare.

What about the green vision?

To get our explanation farther here is some more information that will help you understand how night vision devices work. When the photons from the light around hit the lens, they have all the colors. The thing is that the photons are turned into electrons, and then all the information which might relate to colors perceived by our eyes/brain turn only into black and white.

The explanation is that the image intensification element is made from phosphorus. As you may well know, phosphorus is green, and its luminance capability manages to capture the light from the surrounding environment and present it to you. Therefore, the image you will see is green, as well.

 

But why is phosphorus used?

It is not by accident that these devices use phosphorus. It all has to do with something called chromatic sensitivity. This ability is related to how sensitive the human eye is toward different colors. From the entire spectrum, the color green is the absolute winner, and that is why night vision goggles and other similar products are made with phosphorus.

To go even deeper, this chromatic sensitivity of the human eye toward the green color means that we perceive more shades of this color than of any other. What happens when our eyes can tell the differences between different values of green is that we can perceive shapes and objects.

Another advantage identified by specialists in this field is that we can tolerate looking at the green color for more extended periods of time than at any other color. The computer screens are green for this reason, as well.

And now you know why the night vision showed through various devices designed to help you see in the dark is green, and how that is beneficial for the human eye.

 

 

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To see in the dark, all the optical devices that might be helpful for this purpose need to have a source of light present. They are what specialists call light or image intensifiers, and they cannot present you with an image of your surroundings in conditions of absolute darkness. Of course, such a thing would be difficult to achieve, so, for the most part, night vision goggles and other similar devices can do a pretty good job of helping you see in the dark.

However, since such devices use the exterior light to enhance the image in front of the people handling them, there was another problem to address. Strong light sources, suddenly appearing in the field of view, could create such conditions that users of night vision devices risked temporary blindness.

How have night vision devices evolved?

Since the point of using a night vision item could become null if a simple flashlight was pointed at the person using it, specialists in the field thought about creating devices that were not as susceptible to dangers such as the one mentioned just earlier.

For this particular reason, something called a light limiter was invented. Today, all the modern equipment used for night vision comes with such light limiters. The role of this feature, as you may well suspect, is to make sure that light sources that are strong enough to mess up with the intensifying light feature of your gear will no longer interfere.

But how does such a unit work? You may wonder. The point of using night vision is to detect the light radiation that is undetectable for the naked eye. Making use of infrared and ultraviolet radiation, the night vision devices that are currently available, for military and civilian use, ensure that the spectrum for detecting light is enlarged and enhanced.

At the same time, the technology used makes sure that what light sources are too intense don’t hurt the users’ eyes, which is the primary role of the limiters we talked about.

 

Understanding the main night vision options

Without having to become an expert in optics, you might like to learn a few things about the main options used today for night vision. While the goggles used by military experts and seasoned hunters might use image intensifiers, other devices, such as night vision binoculars, might come with active illumination features, too. We will explain both types right away, as that will serve as an excellent introduction to the kinds of light that play a role in how night vision works.

 

What are image intensifiers?

Image intensifiers are devices using a type of technology that focuses on artificially increasing (amplifying) the number of photons emitted by the sources of light surrounding us. Be it that you want to hunt under the light of the moon and the stars, these celestial bodies will produce enough illumination that can be gathered by your night vision device and enhanced.

In other words, the light received through the lenses is multiplied, resulting in an image that you can see. The devices that use this type of image enhancement are called NVDs, which is short for night-vision devices. By enhancing the visible light, as well as the infrared light that is not visible with the naked eye, these units are capable of providing you with the ability to see in the dark.

You can find some highly sophisticated devices, and they can be used in a broad array of applications. You might not necessarily see a cheap night vision monocular that can provide outstanding results, but there are products even intended for civilian applications that can offer such outstanding performance.

How is the active illumination used?

The other popular option that you have at your disposal is active illumination. This kind of technology uses the image intensification technology, but it also adds a source of light. The said source of light is infrared, and its central role is to add more light to the surroundings so that the results are enhanced.

Shortwave infrared light can be used by more advanced devices, for the simple reason that the shorter the waves, the more light energy they give. Wavelength is an exciting aspect we should talk about. From the visible light spectrum, violet comes with the shortest wavelength, and therefore, it provides the most energy. For this reason, the violet light gives the most radiation.

However, violet is part of the visible light spectrum, as mentioned, and that is why you need to take advantage of the infrared light, which is part of the invisible (to the naked eye) light spectrum.

 

What are the types of light used by night vision technology?

Now that you know more about the night vision technology and its types, let’s make everything clear regarding the light used for making it possible. The infrared spectrum comes in three forms, as follows:

Near-infrared – the wavelength for this type of light is between 0.7 and 1.3 microns; it is at the border with visible light.

Mid-infrared – the wavelengths for this type of light is between 1.3 and 3 microns; many electronic devices that are readily available use this type of light.

Thermal-infrared – it takes most of the infrared spectrum; its wavelength varies between 3 to more than 30 microns.

Why are these light types important?

Night vision would not be possible without a source of light. Visible light, as is the one given by the surroundings, celestial bodies, and not only, is harnessed by night vision equipment to create that image you can see through your lenses. The other type of light used belongs to the light spectrum that is not visible with the naked eye, and it is called infrared.

You can use night vision today for a wide variety of applications. For surveillance, hunting, and many other purposes, it can prove a valuable tool. Learning about it can also help you understand how it works, and expand your general knowledge on products you use.

 

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If you are a motorcycle rider, you’ve probably asked yourself why the specialists recommend that one uses special goggles while driving his/her bike. To be of help to you, we have composed this list of reasons why it is vital that one invests in an item of this kind.

They keep your eyes protected

One of the most annoying things that can happen to you while riding your motorcycle is having debris and insects getting in your eyes. This is not only irritating and distracting to the rider, but it can also cause damage to one’s eyes.

What is more, there have been cases where motorcyclists that drove without eye protection were left blind after bugs and road debris hit their eyes while riding at high speeds. Therefore, investing in high-quality eye gear is a must if you want to make sure that your face is protected against such unfortunate accidents.

Goggles are particularly important if you do not have a helmet that offers full coverage of your face. However, before you invest in any motorcycle and ATV goggles, you should make sure that the product that you have opted for meets the required standards.

 

No more side impacts

When it comes to deciding between glasses and goggles, some users seem to prefer using sunglasses as a means of protection. However, it has been proven that goggles are better at keeping your eyes safe. This is the case because goggles seal themselves around your eyes better.

Furthermore, goggles can provide better protection from side impact. Hence, if a bug hits you while you are looking off the side, you won’t have to deal with the painful consequences. Still, it is worth pointing out that newer sunglasses models are also worth your attention as they have enough lens curvature to also deflect side impacts.

 

They protect you against the wind

If you ride at high speeds, you probably already know that glasses simply cannot keep the wind from entering at the edges. As a result of the impact of the wind, some riders end up suffering from a condition called the dry eye. In other words, your eye is predisposed to drying out faster than the blinking can replace the lost moisture.

This condition is not only highly uncomfortable. According to the specialists, in the long run, eye dry can lead to eye inflammation, a predisposition for eye infections, corneal ulcers and so on. From this point of view, goggles are the perfect choice for eye protection as they can create a seal around your eyes that shields them from dust and drying out.

 

Better fitting

One common problem that bikers have with their eye protection is the fact that it can fall off if it does not fit well. However, such issues can be avoided if you decide to invest in goggles, as these gadgets usually feature an adjustable nose piece and strap that guarantees an excellent fit, regardless of the shape of your head.

They can be used off-road

If you like riding off the road, near fellow bikers, you probably know just how difficult it is to deal with the dust that gets in your eyes. Because of these challenging conditions, some visors are not suitable for the job.

However, differently from glasses, when wearing goggles, because of the tight seal that they form, dust is not able to cling to the inside lens surface. Because of this, most MX racers invest in racing goggles, rather than in glasses. Still, you should know that the models that they purchase have been specially made for off-road riding and, thus, they have a better design.

 

They are versatile

Another significant advantage that goggles have is that they are quite versatile. Therefore, when not worn while riding, they can be utilized when practicing extreme sports where eye protection is crucial.

This is possible because motorcycle goggles come equipped with various anti-glare coatings, UV protection filters, and other similar practical features.

 

They are compatible with useful accessories

Last but not least, goggles are worthy of your attention as they are compatible with a handful of accessories that can make the experience of riding even more enjoyable, no matter the weather conditions.

For instance, you can purchase an accessory called a tear-off. A tear-off is a thin film that covers the lens of the goggle, and that can be used to instantly clean your field of view if your vision is suddenly impaired because of the dirt and debris.

Moreover, you can also purchase roll-offs, an alternative to tear offs, as they do pretty much the same thing. What is more, some of the available goggles also come provided with replacement lenses. This way, when your goggles get too scratched, you can just swap the old lenses out, and place the new ones in.

 

 

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Virtual reality is a new concept that has gained a considerable amount of popularity recently, as the ability to lose yourself in a new version of reality is very appealing to most of us. However, every time somebody immerses himself/herself into the thrilling worlds made available by virtual reality, he/she has to isolate himself/herself by turning off the lights, muffing any outside noise and making sure that the real world is completely blocked out.

After assessing the situation, some modern arcades have decided to take a lesson from the old gaming bars and to integrate the social element into the virtual reality gaming experience. Now, one can go out, put on a pair of goggles that resemble some regular goggles for triathlon and play while still hanging out with friends and enjoying a drink. As a result, it could be said that, with the emersion of VR arcades, VR has taken a big leap in becoming an essential part of today’s entertainment scene.

How it works

The whole idea was seen as a way to add VR based games and experiences into the reality of pubs and bars. However, because the creators of the concept knew that drinking and playing VR games is not an ideal mix, some modifications to the bars where these modern arcades are placed have been made.

For instance, venues of this type are stocked with special headsets and audio straps that are tied up to the ceiling by using an extendable seat belt. To prevent the players from injuring themselves, they are supplied with a giant extra padded paying area.

Consequently, the players don’t roam too far, and they don’t end up bumping into clients that are not connected to the VR game.

Thanks to the success of the concept, some venues have started to treat VR nights in a similar way as major sporting events. Hence, the non-playing customers get to see a peak of what’s happening inside the game as in-game footage is streamed live on large TVs.

Therefore, other punters get to watch their friends playing while sipping a drink at the bar and waiting for their turn to play. What is more, if you are not there to necessarily enjoy the VR experience, you can just as well ignore the screens. Consequently, it could be said that the recipe that guarantees the success of the idea is that VR is only a small part of the whole going out to a bar experience.

 

Is it popular?

At this time, numerous such arcades function all around the world. For instance, there are a few pubs that use VR in London and Vienna. What is more, there is a high profile park that uses VR in Guizhou, China. According to the specialists, in the near future, we can expect VR to be just a normal part of the overall social experience.

Those that have gone out to venues of this kind consider them a cool, enjoyable experience. On top of that, bars of this type are now considered an excellent idea for a first date, primarily by those that are familiar with VR games. Therefore, it could be said that, in the future, going out might be a completely different experience, as playing darts in your local pub could soon be replaced by playing in VR instead!

Who came up with the concept?

The idea was popularized by VR Concept, a British company founded by Oli Lane and Anthony Nixon. While Lane has previously worked in the field of satellite propulsion, Nixon has gained experienced while developing IT infrastructure.

By combining their forces, they have managed to create a fun, entertaining space where people have a good time. As a plus, they have started to change the stereotype that arcades are places were only nerds go.

Although their chain of venues is relatively new, they currently draw quite a crowd, and they are seen as the place to go if you want to impress your friends by taking them to a cool and interesting location.

 

Is it safe?

Well, pretty much yes. Given that the players get to perform in a delineated space that has extra padding and a special infrastructure, there are not many risks. As a plus, after testing their concept and after seeing where things don’t go as planned, Nixon and Lane have made all the changes necessary so that their clientele is happy and completely satisfied with the experience.

Quality-wise, these venues are packed with top-notch equipment and with the latest gadgets and devices when it comes to VR. These new arcade pubs are suitable for both experienced players and newbies that are looking for a unique fun experience.

So, if you love a new challenge, and you are ready to trade your awesome tactical goggles for a pair of VR goggles, feel free to take a chance and give these bars a go!

 

 

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Types of light that affect night vision devices

 

If you have ever tried a pair of night vision goggles, you most probably were impressed with their ability to help you see in the dark. Yet, you might have also wondered about their ability to do so when it’s pitch dark outside. The thing is that this type of goggles works in a particular manner; they take whatever light the environment supplies and intensify it.

That is the reason why they are often named image intensifiers, and that should give you a clear clue on how they truly work. Because the light used for this purpose is often infrared not visible with the naked eye, we often feel tempted to believe that it is genuinely dark outside. That is why night vision goggles might seem like such an excellent device.

So, the question starting this article still stands. Can a pair of such goggles work in absolute darkness? The direct and straightforward answer would be ‘no’, but a more elaborate response is needed, and this is the reason why.

Absolute darkness exists in only exceptional circumstances

Do you still recall how we talked about the infrared light just earlier? What we perceive as complete darkness with the naked eye is anything but, from a physics standpoint. What we don’t catch with our normal vision, our goggles do, and that is any tiny amount of light that comes from the environment.

Something as faint as the light given by the moon and the flickering stars up above can be harnessed and used by the goggles to present you with an accurate image of your surroundings. It may sound like as long as you are out in the open, there is a chance that the celestial bodies give enough light to ensure that your goggles will work.

What about other places? What about the bottom of a cave, or anywhere the natural light of the moon and the stars cannot reach? Again, there is an explanation why you can still use your goggles or a night vision monocular even when you are in such locations.

The thing is that everything that surrounds us and still has a temperature that is above absolute zero still emits some infrared light. That is enough for your night vision goggles to work, and that is why they are so useful for many categories of users. The chances are that you will not encounter absolute darkness conditions as a general rule.

 

Why are some goggles more powerful than others?

Taking into account all the information supplied earlier, you are probably wondering if just any goggles will work. The truth is that some models work better than others, due to how they are designed and especially the quality of the optics installed on them. For instance, models that have multi-coated lenses, and also have some anti-reflective properties, will do a better job at harnessing the light from your surroundings to provide you with an image that is not deterred by insufficient light.

Another feature that might significantly improve the abilities of a pair of goggle is a built-in illuminator. This will create more infrared light for the goggles to catch and process for the image you can then see through them. One thing you should bear in mind, however, is that no illuminator can provide the same viewing distance that you would be able to take advantage of in normal light conditions.

Nonetheless, the better equipped your goggles are, the better the quality of the image you will be able to observe through their lenses.

Are there other devices that can be used?

Night vision goggles are not the only devices you can take advantage of to see more clearly in the dark. They do have their benefits, as they are easy to use and very convenient regarding portability and the like. Some people opt for survival monoculars when they want to gauge their surroundings, but they could, just as well, prefer goggles due to the advantages mentioned earlier.

Nonetheless, there are situations when the use of other types of devices is required. For instance, firefighters need other aids to see through smoke. Thermal imaging is the technology they need to see through the blanket of smoke that can cover a location that is engulfed by flames. There are special optics-based devices that cater to such specific needs, so night vision goggles don’t have such extensive applications.

Where thermal imaging devices differ from regular goggles to be used at night is at their ability to capture the heat signature provided by any body with a temperature above absolute zero. Computer-enhanced screens also contribute to the efficiency of these devices that are often used to identify survivors in various emergency conditions.

 

Conclusion

The purpose of this article is to offer you a comprehensive answer to the question in the title. While night vision goggles cannot work in absolute darkness, the thing is that most of the time, you don’t need them to deliver such impossible performance. For what they are created to do, they do a fantastic job, as they can work with sources of light that are invisible to the naked eye.

You must bear in mind that these goggles work with the tiniest of light sources that are delivered by the environment. However, since almost everything around us is capable of emitting light, even if it is the infrared kind, your goggles can catch this light and turn it into the image you will be able to observe through your goggles.

When presented with various options of night vision goggles, it is preferable that you go for a model that comes with enhanced optics and a built-in illuminator, as this helps a great deal with rendering a clearer image through your goggles.

For more demanding applications, such as identifying survivors in case of emergencies, other optics-based products such as thermal imaging devices are more indicated.

 

 

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If you have ever watched a movie in which night vision was used, or you have ever used a device that takes advantage of this technology to help people see in the dark, you have most probably noticed that the image shown through such devices is always green. The two come together so well that the moment someone mentions night vision binoculars to you, that instantly brings in front of your eyes that green image you are so familiar with.

The advantages of seeing what our eyes can’t see in the dark are tremendous. For military applications, as well as civilian operations, night vision technology offers tremendous benefits. It can help locate survivors of natural cataclysms, and it can pinpoint the location of an enemy. As a layman, you are, however, interested in learning why the image of this type of vision is green. Let’s make it all clear.

When was this technology invented?

You might be surprised to learn that this technology has been around for a while, being used extensively in World War II. Both the US military and the Reich, worked on this technology before and during the war, with the purpose of using it on the battlefield. Both the infantry and the tank divisions used it to identify the location of their enemies.

However, the night vision technology used more than half a century ago was nothing like the elegant portable night vision goggles we’re practically identifying it with. The devices used during those times were bulky and needed manpower to be transported and used in the field.

The idea of making this technology portable, as well as the possibilities, did not occur on a practical level until the Vietnam War when the US military began to use the first devices that could be worn by a soldier on his head.

The main principle that night vision goggles use remains the same: it is the use of whatever light is emitted by the surrounding environment, coupled with image intensification technologies. No matter how advanced night vision is today, you should remember that the same original idea that was used during the aforementioned conflicts continues to stay at its foundation.

So, what’s the idea with the green image?

To understand how the green vision occurs, we need to learn a bit more about all the technologies that are involved. These technologies are employed on goggles, as well as scopes and night vision cameras. They are essential for how the green image occurs, and we will approach them as follows.

Thermal imaging

This technology is capable of telling the heat signature of an object against the surrounding environment. In other words, it is capable of telling when the temperature of the target is different from the rest of the objects around.

Active illumination

While thermal imaging sounds something that is used in military-grade operations, illumination is pretty straightforward. The image intensification used by goggles, or other optical devices, might need more light input to process and render the image before your eyes when you look through them.

The illumination used is very close to the infrared band. By adding more light to the environment, the devices create better conditions for the night vision device to harness it and transform it into an image.

Image intensification

We have already mentioned it a few times, and now it’s the moment to reveal that this is the technology responsible for the green image you see through your night vision monocular, goggles, scope, or any other similar device, designed to offer you the ability to see in the dark.

 

How does image intensification create the image you see?

What happens when we look through any vision device is that the image intensification technology employed on the device takes the light emitted by the celestial bodies and multiplies it. That is why we can get a pretty good image of what surrounds us.

As you can guess by now, it is not possible for your goggles, monocular, or binoculars to work in pitch dark, but, the thing is, most of the time, you won’t need your device to perform in such a manner. Absolute darkness is difficult to achieve, so situations that would meet such conditions are extremely rare.

What about the green vision?

To get our explanation farther here is some more information that will help you understand how night vision devices work. When the photons from the light around hit the lens, they have all the colors. The thing is that the photons are turned into electrons, and then all the information which might relate to colors perceived by our eyes/brain turn only into black and white.

The explanation is that the image intensification element is made from phosphorus. As you may well know, phosphorus is green, and its luminance capability manages to capture the light from the surrounding environment and present it to you. Therefore, the image you will see is green, as well.

 

But why is phosphorus used?

It is not by accident that these devices use phosphorus. It all has to do with something called chromatic sensitivity. This ability is related to how sensitive the human eye is toward different colors. From the entire spectrum, the color green is the absolute winner, and that is why night vision goggles and other similar products are made with phosphorus.

To go even deeper, this chromatic sensitivity of the human eye toward the green color means that we perceive more shades of this color than of any other. What happens when our eyes can tell the differences between different values of green is that we can perceive shapes and objects.

Another advantage identified by specialists in this field is that we can tolerate looking at the green color for more extended periods of time than at any other color. The computer screens are green for this reason, as well.

And now you know why the night vision showed through various devices designed to help you see in the dark is green, and how that is beneficial for the human eye.

 

 

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To see in the dark, all the optical devices that might be helpful for this purpose need to have a source of light present. They are what specialists call light or image intensifiers, and they cannot present you with an image of your surroundings in conditions of absolute darkness. Of course, such a thing would be difficult to achieve, so, for the most part, night vision goggles and other similar devices can do a pretty good job of helping you see in the dark.

However, since such devices use the exterior light to enhance the image in front of the people handling them, there was another problem to address. Strong light sources, suddenly appearing in the field of view, could create such conditions that users of night vision devices risked temporary blindness.

How have night vision devices evolved?

Since the point of using a night vision item could become null if a simple flashlight was pointed at the person using it, specialists in the field thought about creating devices that were not as susceptible to dangers such as the one mentioned just earlier.

For this particular reason, something called a light limiter was invented. Today, all the modern equipment used for night vision comes with such light limiters. The role of this feature, as you may well suspect, is to make sure that light sources that are strong enough to mess up with the intensifying light feature of your gear will no longer interfere.

But how does such a unit work? You may wonder. The point of using night vision is to detect the light radiation that is undetectable for the naked eye. Making use of infrared and ultraviolet radiation, the night vision devices that are currently available, for military and civilian use, ensure that the spectrum for detecting light is enlarged and enhanced.

At the same time, the technology used makes sure that what light sources are too intense don’t hurt the users’ eyes, which is the primary role of the limiters we talked about.

 

Understanding the main night vision options

Without having to become an expert in optics, you might like to learn a few things about the main options used today for night vision. While the goggles used by military experts and seasoned hunters might use image intensifiers, other devices, such as night vision binoculars, might come with active illumination features, too. We will explain both types right away, as that will serve as an excellent introduction to the kinds of light that play a role in how night vision works.

 

What are image intensifiers?

Image intensifiers are devices using a type of technology that focuses on artificially increasing (amplifying) the number of photons emitted by the sources of light surrounding us. Be it that you want to hunt under the light of the moon and the stars, these celestial bodies will produce enough illumination that can be gathered by your night vision device and enhanced.

In other words, the light received through the lenses is multiplied, resulting in an image that you can see. The devices that use this type of image enhancement are called NVDs, which is short for night-vision devices. By enhancing the visible light, as well as the infrared light that is not visible with the naked eye, these units are capable of providing you with the ability to see in the dark.

You can find some highly sophisticated devices, and they can be used in a broad array of applications. You might not necessarily see a cheap night vision monocular that can provide outstanding results, but there are products even intended for civilian applications that can offer such outstanding performance.

How is the active illumination used?

The other popular option that you have at your disposal is active illumination. This kind of technology uses the image intensification technology, but it also adds a source of light. The said source of light is infrared, and its central role is to add more light to the surroundings so that the results are enhanced.

Shortwave infrared light can be used by more advanced devices, for the simple reason that the shorter the waves, the more light energy they give. Wavelength is an exciting aspect we should talk about. From the visible light spectrum, violet comes with the shortest wavelength, and therefore, it provides the most energy. For this reason, the violet light gives the most radiation.

However, violet is part of the visible light spectrum, as mentioned, and that is why you need to take advantage of the infrared light, which is part of the invisible (to the naked eye) light spectrum.

 

What are the types of light used by night vision technology?

Now that you know more about the night vision technology and its types, let’s make everything clear regarding the light used for making it possible. The infrared spectrum comes in three forms, as follows:

Near-infrared – the wavelength for this type of light is between 0.7 and 1.3 microns; it is at the border with visible light.

Mid-infrared – the wavelengths for this type of light is between 1.3 and 3 microns; many electronic devices that are readily available use this type of light.

Thermal-infrared – it takes most of the infrared spectrum; its wavelength varies between 3 to more than 30 microns.

Why are these light types important?

Night vision would not be possible without a source of light. Visible light, as is the one given by the surroundings, celestial bodies, and not only, is harnessed by night vision equipment to create that image you can see through your lenses. The other type of light used belongs to the light spectrum that is not visible with the naked eye, and it is called infrared.

You can use night vision today for a wide variety of applications. For surveillance, hunting, and many other purposes, it can prove a valuable tool. Learning about it can also help you understand how it works, and expand your general knowledge on products you use.

 

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If you are a motorcycle rider, you’ve probably asked yourself why the specialists recommend that one uses special goggles while driving his/her bike. To be of help to you, we have composed this list of reasons why it is vital that one invests in an item of this kind.

They keep your eyes protected

One of the most annoying things that can happen to you while riding your motorcycle is having debris and insects getting in your eyes. This is not only irritating and distracting to the rider, but it can also cause damage to one’s eyes.

What is more, there have been cases where motorcyclists that drove without eye protection were left blind after bugs and road debris hit their eyes while riding at high speeds. Therefore, investing in high-quality eye gear is a must if you want to make sure that your face is protected against such unfortunate accidents.

Goggles are particularly important if you do not have a helmet that offers full coverage of your face. However, before you invest in any motorcycle and ATV goggles, you should make sure that the product that you have opted for meets the required standards.

 

No more side impacts

When it comes to deciding between glasses and goggles, some users seem to prefer using sunglasses as a means of protection. However, it has been proven that goggles are better at keeping your eyes safe. This is the case because goggles seal themselves around your eyes better.

Furthermore, goggles can provide better protection from side impact. Hence, if a bug hits you while you are looking off the side, you won’t have to deal with the painful consequences. Still, it is worth pointing out that newer sunglasses models are also worth your attention as they have enough lens curvature to also deflect side impacts.

 

They protect you against the wind

If you ride at high speeds, you probably already know that glasses simply cannot keep the wind from entering at the edges. As a result of the impact of the wind, some riders end up suffering from a condition called the dry eye. In other words, your eye is predisposed to drying out faster than the blinking can replace the lost moisture.

This condition is not only highly uncomfortable. According to the specialists, in the long run, eye dry can lead to eye inflammation, a predisposition for eye infections, corneal ulcers and so on. From this point of view, goggles are the perfect choice for eye protection as they can create a seal around your eyes that shields them from dust and drying out.

 

Better fitting

One common problem that bikers have with their eye protection is the fact that it can fall off if it does not fit well. However, such issues can be avoided if you decide to invest in goggles, as these gadgets usually feature an adjustable nose piece and strap that guarantees an excellent fit, regardless of the shape of your head.

They can be used off-road

If you like riding off the road, near fellow bikers, you probably know just how difficult it is to deal with the dust that gets in your eyes. Because of these challenging conditions, some visors are not suitable for the job.

However, differently from glasses, when wearing goggles, because of the tight seal that they form, dust is not able to cling to the inside lens surface. Because of this, most MX racers invest in racing goggles, rather than in glasses. Still, you should know that the models that they purchase have been specially made for off-road riding and, thus, they have a better design.

 

They are versatile

Another significant advantage that goggles have is that they are quite versatile. Therefore, when not worn while riding, they can be utilized when practicing extreme sports where eye protection is crucial.

This is possible because motorcycle goggles come equipped with various anti-glare coatings, UV protection filters, and other similar practical features.

 

They are compatible with useful accessories

Last but not least, goggles are worthy of your attention as they are compatible with a handful of accessories that can make the experience of riding even more enjoyable, no matter the weather conditions.

For instance, you can purchase an accessory called a tear-off. A tear-off is a thin film that covers the lens of the goggle, and that can be used to instantly clean your field of view if your vision is suddenly impaired because of the dirt and debris.

Moreover, you can also purchase roll-offs, an alternative to tear offs, as they do pretty much the same thing. What is more, some of the available goggles also come provided with replacement lenses. This way, when your goggles get too scratched, you can just swap the old lenses out, and place the new ones in.

 

 

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Virtual reality is a new concept that has gained a considerable amount of popularity recently, as the ability to lose yourself in a new version of reality is very appealing to most of us. However, every time somebody immerses himself/herself into the thrilling worlds made available by virtual reality, he/she has to isolate himself/herself by turning off the lights, muffing any outside noise and making sure that the real world is completely blocked out.

After assessing the situation, some modern arcades have decided to take a lesson from the old gaming bars and to integrate the social element into the virtual reality gaming experience. Now, one can go out, put on a pair of goggles that resemble some regular goggles for triathlon and play while still hanging out with friends and enjoying a drink. As a result, it could be said that, with the emersion of VR arcades, VR has taken a big leap in becoming an essential part of today’s entertainment scene.

How it works

The whole idea was seen as a way to add VR based games and experiences into the reality of pubs and bars. However, because the creators of the concept knew that drinking and playing VR games is not an ideal mix, some modifications to the bars where these modern arcades are placed have been made.

For instance, venues of this type are stocked with special headsets and audio straps that are tied up to the ceiling by using an extendable seat belt. To prevent the players from injuring themselves, they are supplied with a giant extra padded paying area.

Consequently, the players don’t roam too far, and they don’t end up bumping into clients that are not connected to the VR game.

Thanks to the success of the concept, some venues have started to treat VR nights in a similar way as major sporting events. Hence, the non-playing customers get to see a peak of what’s happening inside the game as in-game footage is streamed live on large TVs.

Therefore, other punters get to watch their friends playing while sipping a drink at the bar and waiting for their turn to play. What is more, if you are not there to necessarily enjoy the VR experience, you can just as well ignore the screens. Consequently, it could be said that the recipe that guarantees the success of the idea is that VR is only a small part of the whole going out to a bar experience.

 

Is it popular?

At this time, numerous such arcades function all around the world. For instance, there are a few pubs that use VR in London and Vienna. What is more, there is a high profile park that uses VR in Guizhou, China. According to the specialists, in the near future, we can expect VR to be just a normal part of the overall social experience.

Those that have gone out to venues of this kind consider them a cool, enjoyable experience. On top of that, bars of this type are now considered an excellent idea for a first date, primarily by those that are familiar with VR games. Therefore, it could be said that, in the future, going out might be a completely different experience, as playing darts in your local pub could soon be replaced by playing in VR instead!

Who came up with the concept?

The idea was popularized by VR Concept, a British company founded by Oli Lane and Anthony Nixon. While Lane has previously worked in the field of satellite propulsion, Nixon has gained experienced while developing IT infrastructure.

By combining their forces, they have managed to create a fun, entertaining space where people have a good time. As a plus, they have started to change the stereotype that arcades are places were only nerds go.

Although their chain of venues is relatively new, they currently draw quite a crowd, and they are seen as the place to go if you want to impress your friends by taking them to a cool and interesting location.

 

Is it safe?

Well, pretty much yes. Given that the players get to perform in a delineated space that has extra padding and a special infrastructure, there are not many risks. As a plus, after testing their concept and after seeing where things don’t go as planned, Nixon and Lane have made all the changes necessary so that their clientele is happy and completely satisfied with the experience.

Quality-wise, these venues are packed with top-notch equipment and with the latest gadgets and devices when it comes to VR. These new arcade pubs are suitable for both experienced players and newbies that are looking for a unique fun experience.

So, if you love a new challenge, and you are ready to trade your awesome tactical goggles for a pair of VR goggles, feel free to take a chance and give these bars a go!

 

 

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Why goggles are essential when you’re riding a motorcycle

 

If you have ever tried a pair of night vision goggles, you most probably were impressed with their ability to help you see in the dark. Yet, you might have also wondered about their ability to do so when it’s pitch dark outside. The thing is that this type of goggles works in a particular manner; they take whatever light the environment supplies and intensify it.

That is the reason why they are often named image intensifiers, and that should give you a clear clue on how they truly work. Because the light used for this purpose is often infrared not visible with the naked eye, we often feel tempted to believe that it is genuinely dark outside. That is why night vision goggles might seem like such an excellent device.

So, the question starting this article still stands. Can a pair of such goggles work in absolute darkness? The direct and straightforward answer would be ‘no’, but a more elaborate response is needed, and this is the reason why.

Absolute darkness exists in only exceptional circumstances

Do you still recall how we talked about the infrared light just earlier? What we perceive as complete darkness with the naked eye is anything but, from a physics standpoint. What we don’t catch with our normal vision, our goggles do, and that is any tiny amount of light that comes from the environment.

Something as faint as the light given by the moon and the flickering stars up above can be harnessed and used by the goggles to present you with an accurate image of your surroundings. It may sound like as long as you are out in the open, there is a chance that the celestial bodies give enough light to ensure that your goggles will work.

What about other places? What about the bottom of a cave, or anywhere the natural light of the moon and the stars cannot reach? Again, there is an explanation why you can still use your goggles or a night vision monocular even when you are in such locations.

The thing is that everything that surrounds us and still has a temperature that is above absolute zero still emits some infrared light. That is enough for your night vision goggles to work, and that is why they are so useful for many categories of users. The chances are that you will not encounter absolute darkness conditions as a general rule.

 

Why are some goggles more powerful than others?

Taking into account all the information supplied earlier, you are probably wondering if just any goggles will work. The truth is that some models work better than others, due to how they are designed and especially the quality of the optics installed on them. For instance, models that have multi-coated lenses, and also have some anti-reflective properties, will do a better job at harnessing the light from your surroundings to provide you with an image that is not deterred by insufficient light.

Another feature that might significantly improve the abilities of a pair of goggle is a built-in illuminator. This will create more infrared light for the goggles to catch and process for the image you can then see through them. One thing you should bear in mind, however, is that no illuminator can provide the same viewing distance that you would be able to take advantage of in normal light conditions.

Nonetheless, the better equipped your goggles are, the better the quality of the image you will be able to observe through their lenses.

Are there other devices that can be used?

Night vision goggles are not the only devices you can take advantage of to see more clearly in the dark. They do have their benefits, as they are easy to use and very convenient regarding portability and the like. Some people opt for survival monoculars when they want to gauge their surroundings, but they could, just as well, prefer goggles due to the advantages mentioned earlier.

Nonetheless, there are situations when the use of other types of devices is required. For instance, firefighters need other aids to see through smoke. Thermal imaging is the technology they need to see through the blanket of smoke that can cover a location that is engulfed by flames. There are special optics-based devices that cater to such specific needs, so night vision goggles don’t have such extensive applications.

Where thermal imaging devices differ from regular goggles to be used at night is at their ability to capture the heat signature provided by any body with a temperature above absolute zero. Computer-enhanced screens also contribute to the efficiency of these devices that are often used to identify survivors in various emergency conditions.

 

Conclusion

The purpose of this article is to offer you a comprehensive answer to the question in the title. While night vision goggles cannot work in absolute darkness, the thing is that most of the time, you don’t need them to deliver such impossible performance. For what they are created to do, they do a fantastic job, as they can work with sources of light that are invisible to the naked eye.

You must bear in mind that these goggles work with the tiniest of light sources that are delivered by the environment. However, since almost everything around us is capable of emitting light, even if it is the infrared kind, your goggles can catch this light and turn it into the image you will be able to observe through your goggles.

When presented with various options of night vision goggles, it is preferable that you go for a model that comes with enhanced optics and a built-in illuminator, as this helps a great deal with rendering a clearer image through your goggles.

For more demanding applications, such as identifying survivors in case of emergencies, other optics-based products such as thermal imaging devices are more indicated.

 

 

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If you have ever watched a movie in which night vision was used, or you have ever used a device that takes advantage of this technology to help people see in the dark, you have most probably noticed that the image shown through such devices is always green. The two come together so well that the moment someone mentions night vision binoculars to you, that instantly brings in front of your eyes that green image you are so familiar with.

The advantages of seeing what our eyes can’t see in the dark are tremendous. For military applications, as well as civilian operations, night vision technology offers tremendous benefits. It can help locate survivors of natural cataclysms, and it can pinpoint the location of an enemy. As a layman, you are, however, interested in learning why the image of this type of vision is green. Let’s make it all clear.

When was this technology invented?

You might be surprised to learn that this technology has been around for a while, being used extensively in World War II. Both the US military and the Reich, worked on this technology before and during the war, with the purpose of using it on the battlefield. Both the infantry and the tank divisions used it to identify the location of their enemies.

However, the night vision technology used more than half a century ago was nothing like the elegant portable night vision goggles we’re practically identifying it with. The devices used during those times were bulky and needed manpower to be transported and used in the field.

The idea of making this technology portable, as well as the possibilities, did not occur on a practical level until the Vietnam War when the US military began to use the first devices that could be worn by a soldier on his head.

The main principle that night vision goggles use remains the same: it is the use of whatever light is emitted by the surrounding environment, coupled with image intensification technologies. No matter how advanced night vision is today, you should remember that the same original idea that was used during the aforementioned conflicts continues to stay at its foundation.

So, what’s the idea with the green image?

To understand how the green vision occurs, we need to learn a bit more about all the technologies that are involved. These technologies are employed on goggles, as well as scopes and night vision cameras. They are essential for how the green image occurs, and we will approach them as follows.

Thermal imaging

This technology is capable of telling the heat signature of an object against the surrounding environment. In other words, it is capable of telling when the temperature of the target is different from the rest of the objects around.

Active illumination

While thermal imaging sounds something that is used in military-grade operations, illumination is pretty straightforward. The image intensification used by goggles, or other optical devices, might need more light input to process and render the image before your eyes when you look through them.

The illumination used is very close to the infrared band. By adding more light to the environment, the devices create better conditions for the night vision device to harness it and transform it into an image.

Image intensification

We have already mentioned it a few times, and now it’s the moment to reveal that this is the technology responsible for the green image you see through your night vision monocular, goggles, scope, or any other similar device, designed to offer you the ability to see in the dark.

 

How does image intensification create the image you see?

What happens when we look through any vision device is that the image intensification technology employed on the device takes the light emitted by the celestial bodies and multiplies it. That is why we can get a pretty good image of what surrounds us.

As you can guess by now, it is not possible for your goggles, monocular, or binoculars to work in pitch dark, but, the thing is, most of the time, you won’t need your device to perform in such a manner. Absolute darkness is difficult to achieve, so situations that would meet such conditions are extremely rare.

What about the green vision?

To get our explanation farther here is some more information that will help you understand how night vision devices work. When the photons from the light around hit the lens, they have all the colors. The thing is that the photons are turned into electrons, and then all the information which might relate to colors perceived by our eyes/brain turn only into black and white.

The explanation is that the image intensification element is made from phosphorus. As you may well know, phosphorus is green, and its luminance capability manages to capture the light from the surrounding environment and present it to you. Therefore, the image you will see is green, as well.

 

But why is phosphorus used?

It is not by accident that these devices use phosphorus. It all has to do with something called chromatic sensitivity. This ability is related to how sensitive the human eye is toward different colors. From the entire spectrum, the color green is the absolute winner, and that is why night vision goggles and other similar products are made with phosphorus.

To go even deeper, this chromatic sensitivity of the human eye toward the green color means that we perceive more shades of this color than of any other. What happens when our eyes can tell the differences between different values of green is that we can perceive shapes and objects.

Another advantage identified by specialists in this field is that we can tolerate looking at the green color for more extended periods of time than at any other color. The computer screens are green for this reason, as well.

And now you know why the night vision showed through various devices designed to help you see in the dark is green, and how that is beneficial for the human eye.

 

 

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To see in the dark, all the optical devices that might be helpful for this purpose need to have a source of light present. They are what specialists call light or image intensifiers, and they cannot present you with an image of your surroundings in conditions of absolute darkness. Of course, such a thing would be difficult to achieve, so, for the most part, night vision goggles and other similar devices can do a pretty good job of helping you see in the dark.

However, since such devices use the exterior light to enhance the image in front of the people handling them, there was another problem to address. Strong light sources, suddenly appearing in the field of view, could create such conditions that users of night vision devices risked temporary blindness.

How have night vision devices evolved?

Since the point of using a night vision item could become null if a simple flashlight was pointed at the person using it, specialists in the field thought about creating devices that were not as susceptible to dangers such as the one mentioned just earlier.

For this particular reason, something called a light limiter was invented. Today, all the modern equipment used for night vision comes with such light limiters. The role of this feature, as you may well suspect, is to make sure that light sources that are strong enough to mess up with the intensifying light feature of your gear will no longer interfere.

But how does such a unit work? You may wonder. The point of using night vision is to detect the light radiation that is undetectable for the naked eye. Making use of infrared and ultraviolet radiation, the night vision devices that are currently available, for military and civilian use, ensure that the spectrum for detecting light is enlarged and enhanced.

At the same time, the technology used makes sure that what light sources are too intense don’t hurt the users’ eyes, which is the primary role of the limiters we talked about.

 

Understanding the main night vision options

Without having to become an expert in optics, you might like to learn a few things about the main options used today for night vision. While the goggles used by military experts and seasoned hunters might use image intensifiers, other devices, such as night vision binoculars, might come with active illumination features, too. We will explain both types right away, as that will serve as an excellent introduction to the kinds of light that play a role in how night vision works.

 

What are image intensifiers?

Image intensifiers are devices using a type of technology that focuses on artificially increasing (amplifying) the number of photons emitted by the sources of light surrounding us. Be it that you want to hunt under the light of the moon and the stars, these celestial bodies will produce enough illumination that can be gathered by your night vision device and enhanced.

In other words, the light received through the lenses is multiplied, resulting in an image that you can see. The devices that use this type of image enhancement are called NVDs, which is short for night-vision devices. By enhancing the visible light, as well as the infrared light that is not visible with the naked eye, these units are capable of providing you with the ability to see in the dark.

You can find some highly sophisticated devices, and they can be used in a broad array of applications. You might not necessarily see a cheap night vision monocular that can provide outstanding results, but there are products even intended for civilian applications that can offer such outstanding performance.

How is the active illumination used?

The other popular option that you have at your disposal is active illumination. This kind of technology uses the image intensification technology, but it also adds a source of light. The said source of light is infrared, and its central role is to add more light to the surroundings so that the results are enhanced.

Shortwave infrared light can be used by more advanced devices, for the simple reason that the shorter the waves, the more light energy they give. Wavelength is an exciting aspect we should talk about. From the visible light spectrum, violet comes with the shortest wavelength, and therefore, it provides the most energy. For this reason, the violet light gives the most radiation.

However, violet is part of the visible light spectrum, as mentioned, and that is why you need to take advantage of the infrared light, which is part of the invisible (to the naked eye) light spectrum.

 

What are the types of light used by night vision technology?

Now that you know more about the night vision technology and its types, let’s make everything clear regarding the light used for making it possible. The infrared spectrum comes in three forms, as follows:

Near-infrared – the wavelength for this type of light is between 0.7 and 1.3 microns; it is at the border with visible light.

Mid-infrared – the wavelengths for this type of light is between 1.3 and 3 microns; many electronic devices that are readily available use this type of light.

Thermal-infrared – it takes most of the infrared spectrum; its wavelength varies between 3 to more than 30 microns.

Why are these light types important?

Night vision would not be possible without a source of light. Visible light, as is the one given by the surroundings, celestial bodies, and not only, is harnessed by night vision equipment to create that image you can see through your lenses. The other type of light used belongs to the light spectrum that is not visible with the naked eye, and it is called infrared.

You can use night vision today for a wide variety of applications. For surveillance, hunting, and many other purposes, it can prove a valuable tool. Learning about it can also help you understand how it works, and expand your general knowledge on products you use.

 

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If you are a motorcycle rider, you’ve probably asked yourself why the specialists recommend that one uses special goggles while driving his/her bike. To be of help to you, we have composed this list of reasons why it is vital that one invests in an item of this kind.

They keep your eyes protected

One of the most annoying things that can happen to you while riding your motorcycle is having debris and insects getting in your eyes. This is not only irritating and distracting to the rider, but it can also cause damage to one’s eyes.

What is more, there have been cases where motorcyclists that drove without eye protection were left blind after bugs and road debris hit their eyes while riding at high speeds. Therefore, investing in high-quality eye gear is a must if you want to make sure that your face is protected against such unfortunate accidents.

Goggles are particularly important if you do not have a helmet that offers full coverage of your face. However, before you invest in any motorcycle and ATV goggles, you should make sure that the product that you have opted for meets the required standards.

 

No more side impacts

When it comes to deciding between glasses and goggles, some users seem to prefer using sunglasses as a means of protection. However, it has been proven that goggles are better at keeping your eyes safe. This is the case because goggles seal themselves around your eyes better.

Furthermore, goggles can provide better protection from side impact. Hence, if a bug hits you while you are looking off the side, you won’t have to deal with the painful consequences. Still, it is worth pointing out that newer sunglasses models are also worth your attention as they have enough lens curvature to also deflect side impacts.

 

They protect you against the wind

If you ride at high speeds, you probably already know that glasses simply cannot keep the wind from entering at the edges. As a result of the impact of the wind, some riders end up suffering from a condition called the dry eye. In other words, your eye is predisposed to drying out faster than the blinking can replace the lost moisture.

This condition is not only highly uncomfortable. According to the specialists, in the long run, eye dry can lead to eye inflammation, a predisposition for eye infections, corneal ulcers and so on. From this point of view, goggles are the perfect choice for eye protection as they can create a seal around your eyes that shields them from dust and drying out.

 

Better fitting

One common problem that bikers have with their eye protection is the fact that it can fall off if it does not fit well. However, such issues can be avoided if you decide to invest in goggles, as these gadgets usually feature an adjustable nose piece and strap that guarantees an excellent fit, regardless of the shape of your head.

They can be used off-road

If you like riding off the road, near fellow bikers, you probably know just how difficult it is to deal with the dust that gets in your eyes. Because of these challenging conditions, some visors are not suitable for the job.

However, differently from glasses, when wearing goggles, because of the tight seal that they form, dust is not able to cling to the inside lens surface. Because of this, most MX racers invest in racing goggles, rather than in glasses. Still, you should know that the models that they purchase have been specially made for off-road riding and, thus, they have a better design.

 

They are versatile

Another significant advantage that goggles have is that they are quite versatile. Therefore, when not worn while riding, they can be utilized when practicing extreme sports where eye protection is crucial.

This is possible because motorcycle goggles come equipped with various anti-glare coatings, UV protection filters, and other similar practical features.

 

They are compatible with useful accessories

Last but not least, goggles are worthy of your attention as they are compatible with a handful of accessories that can make the experience of riding even more enjoyable, no matter the weather conditions.

For instance, you can purchase an accessory called a tear-off. A tear-off is a thin film that covers the lens of the goggle, and that can be used to instantly clean your field of view if your vision is suddenly impaired because of the dirt and debris.

Moreover, you can also purchase roll-offs, an alternative to tear offs, as they do pretty much the same thing. What is more, some of the available goggles also come provided with replacement lenses. This way, when your goggles get too scratched, you can just swap the old lenses out, and place the new ones in.

 

 

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Virtual reality is a new concept that has gained a considerable amount of popularity recently, as the ability to lose yourself in a new version of reality is very appealing to most of us. However, every time somebody immerses himself/herself into the thrilling worlds made available by virtual reality, he/she has to isolate himself/herself by turning off the lights, muffing any outside noise and making sure that the real world is completely blocked out.

After assessing the situation, some modern arcades have decided to take a lesson from the old gaming bars and to integrate the social element into the virtual reality gaming experience. Now, one can go out, put on a pair of goggles that resemble some regular goggles for triathlon and play while still hanging out with friends and enjoying a drink. As a result, it could be said that, with the emersion of VR arcades, VR has taken a big leap in becoming an essential part of today’s entertainment scene.

How it works

The whole idea was seen as a way to add VR based games and experiences into the reality of pubs and bars. However, because the creators of the concept knew that drinking and playing VR games is not an ideal mix, some modifications to the bars where these modern arcades are placed have been made.

For instance, venues of this type are stocked with special headsets and audio straps that are tied up to the ceiling by using an extendable seat belt. To prevent the players from injuring themselves, they are supplied with a giant extra padded paying area.

Consequently, the players don’t roam too far, and they don’t end up bumping into clients that are not connected to the VR game.

Thanks to the success of the concept, some venues have started to treat VR nights in a similar way as major sporting events. Hence, the non-playing customers get to see a peak of what’s happening inside the game as in-game footage is streamed live on large TVs.

Therefore, other punters get to watch their friends playing while sipping a drink at the bar and waiting for their turn to play. What is more, if you are not there to necessarily enjoy the VR experience, you can just as well ignore the screens. Consequently, it could be said that the recipe that guarantees the success of the idea is that VR is only a small part of the whole going out to a bar experience.

 

Is it popular?

At this time, numerous such arcades function all around the world. For instance, there are a few pubs that use VR in London and Vienna. What is more, there is a high profile park that uses VR in Guizhou, China. According to the specialists, in the near future, we can expect VR to be just a normal part of the overall social experience.

Those that have gone out to venues of this kind consider them a cool, enjoyable experience. On top of that, bars of this type are now considered an excellent idea for a first date, primarily by those that are familiar with VR games. Therefore, it could be said that, in the future, going out might be a completely different experience, as playing darts in your local pub could soon be replaced by playing in VR instead!

Who came up with the concept?

The idea was popularized by VR Concept, a British company founded by Oli Lane and Anthony Nixon. While Lane has previously worked in the field of satellite propulsion, Nixon has gained experienced while developing IT infrastructure.

By combining their forces, they have managed to create a fun, entertaining space where people have a good time. As a plus, they have started to change the stereotype that arcades are places were only nerds go.

Although their chain of venues is relatively new, they currently draw quite a crowd, and they are seen as the place to go if you want to impress your friends by taking them to a cool and interesting location.

 

Is it safe?

Well, pretty much yes. Given that the players get to perform in a delineated space that has extra padding and a special infrastructure, there are not many risks. As a plus, after testing their concept and after seeing where things don’t go as planned, Nixon and Lane have made all the changes necessary so that their clientele is happy and completely satisfied with the experience.

Quality-wise, these venues are packed with top-notch equipment and with the latest gadgets and devices when it comes to VR. These new arcade pubs are suitable for both experienced players and newbies that are looking for a unique fun experience.

So, if you love a new challenge, and you are ready to trade your awesome tactical goggles for a pair of VR goggles, feel free to take a chance and give these bars a go!

 

 

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Virtual reality and beer goggles

 

If you have ever tried a pair of night vision goggles, you most probably were impressed with their ability to help you see in the dark. Yet, you might have also wondered about their ability to do so when it’s pitch dark outside. The thing is that this type of goggles works in a particular manner; they take whatever light the environment supplies and intensify it.

That is the reason why they are often named image intensifiers, and that should give you a clear clue on how they truly work. Because the light used for this purpose is often infrared not visible with the naked eye, we often feel tempted to believe that it is genuinely dark outside. That is why night vision goggles might seem like such an excellent device.

So, the question starting this article still stands. Can a pair of such goggles work in absolute darkness? The direct and straightforward answer would be ‘no’, but a more elaborate response is needed, and this is the reason why.

Absolute darkness exists in only exceptional circumstances

Do you still recall how we talked about the infrared light just earlier? What we perceive as complete darkness with the naked eye is anything but, from a physics standpoint. What we don’t catch with our normal vision, our goggles do, and that is any tiny amount of light that comes from the environment.

Something as faint as the light given by the moon and the flickering stars up above can be harnessed and used by the goggles to present you with an accurate image of your surroundings. It may sound like as long as you are out in the open, there is a chance that the celestial bodies give enough light to ensure that your goggles will work.

What about other places? What about the bottom of a cave, or anywhere the natural light of the moon and the stars cannot reach? Again, there is an explanation why you can still use your goggles or a night vision monocular even when you are in such locations.

The thing is that everything that surrounds us and still has a temperature that is above absolute zero still emits some infrared light. That is enough for your night vision goggles to work, and that is why they are so useful for many categories of users. The chances are that you will not encounter absolute darkness conditions as a general rule.

 

Why are some goggles more powerful than others?

Taking into account all the information supplied earlier, you are probably wondering if just any goggles will work. The truth is that some models work better than others, due to how they are designed and especially the quality of the optics installed on them. For instance, models that have multi-coated lenses, and also have some anti-reflective properties, will do a better job at harnessing the light from your surroundings to provide you with an image that is not deterred by insufficient light.

Another feature that might significantly improve the abilities of a pair of goggle is a built-in illuminator. This will create more infrared light for the goggles to catch and process for the image you can then see through them. One thing you should bear in mind, however, is that no illuminator can provide the same viewing distance that you would be able to take advantage of in normal light conditions.

Nonetheless, the better equipped your goggles are, the better the quality of the image you will be able to observe through their lenses.

Are there other devices that can be used?

Night vision goggles are not the only devices you can take advantage of to see more clearly in the dark. They do have their benefits, as they are easy to use and very convenient regarding portability and the like. Some people opt for survival monoculars when they want to gauge their surroundings, but they could, just as well, prefer goggles due to the advantages mentioned earlier.

Nonetheless, there are situations when the use of other types of devices is required. For instance, firefighters need other aids to see through smoke. Thermal imaging is the technology they need to see through the blanket of smoke that can cover a location that is engulfed by flames. There are special optics-based devices that cater to such specific needs, so night vision goggles don’t have such extensive applications.

Where thermal imaging devices differ from regular goggles to be used at night is at their ability to capture the heat signature provided by any body with a temperature above absolute zero. Computer-enhanced screens also contribute to the efficiency of these devices that are often used to identify survivors in various emergency conditions.

 

Conclusion

The purpose of this article is to offer you a comprehensive answer to the question in the title. While night vision goggles cannot work in absolute darkness, the thing is that most of the time, you don’t need them to deliver such impossible performance. For what they are created to do, they do a fantastic job, as they can work with sources of light that are invisible to the naked eye.

You must bear in mind that these goggles work with the tiniest of light sources that are delivered by the environment. However, since almost everything around us is capable of emitting light, even if it is the infrared kind, your goggles can catch this light and turn it into the image you will be able to observe through your goggles.

When presented with various options of night vision goggles, it is preferable that you go for a model that comes with enhanced optics and a built-in illuminator, as this helps a great deal with rendering a clearer image through your goggles.

For more demanding applications, such as identifying survivors in case of emergencies, other optics-based products such as thermal imaging devices are more indicated.

 

 

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If you have ever watched a movie in which night vision was used, or you have ever used a device that takes advantage of this technology to help people see in the dark, you have most probably noticed that the image shown through such devices is always green. The two come together so well that the moment someone mentions night vision binoculars to you, that instantly brings in front of your eyes that green image you are so familiar with.

The advantages of seeing what our eyes can’t see in the dark are tremendous. For military applications, as well as civilian operations, night vision technology offers tremendous benefits. It can help locate survivors of natural cataclysms, and it can pinpoint the location of an enemy. As a layman, you are, however, interested in learning why the image of this type of vision is green. Let’s make it all clear.

When was this technology invented?

You might be surprised to learn that this technology has been around for a while, being used extensively in World War II. Both the US military and the Reich, worked on this technology before and during the war, with the purpose of using it on the battlefield. Both the infantry and the tank divisions used it to identify the location of their enemies.

However, the night vision technology used more than half a century ago was nothing like the elegant portable night vision goggles we’re practically identifying it with. The devices used during those times were bulky and needed manpower to be transported and used in the field.

The idea of making this technology portable, as well as the possibilities, did not occur on a practical level until the Vietnam War when the US military began to use the first devices that could be worn by a soldier on his head.

The main principle that night vision goggles use remains the same: it is the use of whatever light is emitted by the surrounding environment, coupled with image intensification technologies. No matter how advanced night vision is today, you should remember that the same original idea that was used during the aforementioned conflicts continues to stay at its foundation.

So, what’s the idea with the green image?

To understand how the green vision occurs, we need to learn a bit more about all the technologies that are involved. These technologies are employed on goggles, as well as scopes and night vision cameras. They are essential for how the green image occurs, and we will approach them as follows.

Thermal imaging

This technology is capable of telling the heat signature of an object against the surrounding environment. In other words, it is capable of telling when the temperature of the target is different from the rest of the objects around.

Active illumination

While thermal imaging sounds something that is used in military-grade operations, illumination is pretty straightforward. The image intensification used by goggles, or other optical devices, might need more light input to process and render the image before your eyes when you look through them.

The illumination used is very close to the infrared band. By adding more light to the environment, the devices create better conditions for the night vision device to harness it and transform it into an image.

Image intensification

We have already mentioned it a few times, and now it’s the moment to reveal that this is the technology responsible for the green image you see through your night vision monocular, goggles, scope, or any other similar device, designed to offer you the ability to see in the dark.

 

How does image intensification create the image you see?

What happens when we look through any vision device is that the image intensification technology employed on the device takes the light emitted by the celestial bodies and multiplies it. That is why we can get a pretty good image of what surrounds us.

As you can guess by now, it is not possible for your goggles, monocular, or binoculars to work in pitch dark, but, the thing is, most of the time, you won’t need your device to perform in such a manner. Absolute darkness is difficult to achieve, so situations that would meet such conditions are extremely rare.

What about the green vision?

To get our explanation farther here is some more information that will help you understand how night vision devices work. When the photons from the light around hit the lens, they have all the colors. The thing is that the photons are turned into electrons, and then all the information which might relate to colors perceived by our eyes/brain turn only into black and white.

The explanation is that the image intensification element is made from phosphorus. As you may well know, phosphorus is green, and its luminance capability manages to capture the light from the surrounding environment and present it to you. Therefore, the image you will see is green, as well.

 

But why is phosphorus used?

It is not by accident that these devices use phosphorus. It all has to do with something called chromatic sensitivity. This ability is related to how sensitive the human eye is toward different colors. From the entire spectrum, the color green is the absolute winner, and that is why night vision goggles and other similar products are made with phosphorus.

To go even deeper, this chromatic sensitivity of the human eye toward the green color means that we perceive more shades of this color than of any other. What happens when our eyes can tell the differences between different values of green is that we can perceive shapes and objects.

Another advantage identified by specialists in this field is that we can tolerate looking at the green color for more extended periods of time than at any other color. The computer screens are green for this reason, as well.

And now you know why the night vision showed through various devices designed to help you see in the dark is green, and how that is beneficial for the human eye.

 

 

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To see in the dark, all the optical devices that might be helpful for this purpose need to have a source of light present. They are what specialists call light or image intensifiers, and they cannot present you with an image of your surroundings in conditions of absolute darkness. Of course, such a thing would be difficult to achieve, so, for the most part, night vision goggles and other similar devices can do a pretty good job of helping you see in the dark.

However, since such devices use the exterior light to enhance the image in front of the people handling them, there was another problem to address. Strong light sources, suddenly appearing in the field of view, could create such conditions that users of night vision devices risked temporary blindness.

How have night vision devices evolved?

Since the point of using a night vision item could become null if a simple flashlight was pointed at the person using it, specialists in the field thought about creating devices that were not as susceptible to dangers such as the one mentioned just earlier.

For this particular reason, something called a light limiter was invented. Today, all the modern equipment used for night vision comes with such light limiters. The role of this feature, as you may well suspect, is to make sure that light sources that are strong enough to mess up with the intensifying light feature of your gear will no longer interfere.

But how does such a unit work? You may wonder. The point of using night vision is to detect the light radiation that is undetectable for the naked eye. Making use of infrared and ultraviolet radiation, the night vision devices that are currently available, for military and civilian use, ensure that the spectrum for detecting light is enlarged and enhanced.

At the same time, the technology used makes sure that what light sources are too intense don’t hurt the users’ eyes, which is the primary role of the limiters we talked about.

 

Understanding the main night vision options

Without having to become an expert in optics, you might like to learn a few things about the main options used today for night vision. While the goggles used by military experts and seasoned hunters might use image intensifiers, other devices, such as night vision binoculars, might come with active illumination features, too. We will explain both types right away, as that will serve as an excellent introduction to the kinds of light that play a role in how night vision works.

 

What are image intensifiers?

Image intensifiers are devices using a type of technology that focuses on artificially increasing (amplifying) the number of photons emitted by the sources of light surrounding us. Be it that you want to hunt under the light of the moon and the stars, these celestial bodies will produce enough illumination that can be gathered by your night vision device and enhanced.

In other words, the light received through the lenses is multiplied, resulting in an image that you can see. The devices that use this type of image enhancement are called NVDs, which is short for night-vision devices. By enhancing the visible light, as well as the infrared light that is not visible with the naked eye, these units are capable of providing you with the ability to see in the dark.

You can find some highly sophisticated devices, and they can be used in a broad array of applications. You might not necessarily see a cheap night vision monocular that can provide outstanding results, but there are products even intended for civilian applications that can offer such outstanding performance.

How is the active illumination used?

The other popular option that you have at your disposal is active illumination. This kind of technology uses the image intensification technology, but it also adds a source of light. The said source of light is infrared, and its central role is to add more light to the surroundings so that the results are enhanced.

Shortwave infrared light can be used by more advanced devices, for the simple reason that the shorter the waves, the more light energy they give. Wavelength is an exciting aspect we should talk about. From the visible light spectrum, violet comes with the shortest wavelength, and therefore, it provides the most energy. For this reason, the violet light gives the most radiation.

However, violet is part of the visible light spectrum, as mentioned, and that is why you need to take advantage of the infrared light, which is part of the invisible (to the naked eye) light spectrum.

 

What are the types of light used by night vision technology?

Now that you know more about the night vision technology and its types, let’s make everything clear regarding the light used for making it possible. The infrared spectrum comes in three forms, as follows:

Near-infrared – the wavelength for this type of light is between 0.7 and 1.3 microns; it is at the border with visible light.

Mid-infrared – the wavelengths for this type of light is between 1.3 and 3 microns; many electronic devices that are readily available use this type of light.

Thermal-infrared – it takes most of the infrared spectrum; its wavelength varies between 3 to more than 30 microns.

Why are these light types important?

Night vision would not be possible without a source of light. Visible light, as is the one given by the surroundings, celestial bodies, and not only, is harnessed by night vision equipment to create that image you can see through your lenses. The other type of light used belongs to the light spectrum that is not visible with the naked eye, and it is called infrared.

You can use night vision today for a wide variety of applications. For surveillance, hunting, and many other purposes, it can prove a valuable tool. Learning about it can also help you understand how it works, and expand your general knowledge on products you use.

 

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If you are a motorcycle rider, you’ve probably asked yourself why the specialists recommend that one uses special goggles while driving his/her bike. To be of help to you, we have composed this list of reasons why it is vital that one invests in an item of this kind.

They keep your eyes protected

One of the most annoying things that can happen to you while riding your motorcycle is having debris and insects getting in your eyes. This is not only irritating and distracting to the rider, but it can also cause damage to one’s eyes.

What is more, there have been cases where motorcyclists that drove without eye protection were left blind after bugs and road debris hit their eyes while riding at high speeds. Therefore, investing in high-quality eye gear is a must if you want to make sure that your face is protected against such unfortunate accidents.

Goggles are particularly important if you do not have a helmet that offers full coverage of your face. However, before you invest in any motorcycle and ATV goggles, you should make sure that the product that you have opted for meets the required standards.

 

No more side impacts

When it comes to deciding between glasses and goggles, some users seem to prefer using sunglasses as a means of protection. However, it has been proven that goggles are better at keeping your eyes safe. This is the case because goggles seal themselves around your eyes better.

Furthermore, goggles can provide better protection from side impact. Hence, if a bug hits you while you are looking off the side, you won’t have to deal with the painful consequences. Still, it is worth pointing out that newer sunglasses models are also worth your attention as they have enough lens curvature to also deflect side impacts.

 

They protect you against the wind

If you ride at high speeds, you probably already know that glasses simply cannot keep the wind from entering at the edges. As a result of the impact of the wind, some riders end up suffering from a condition called the dry eye. In other words, your eye is predisposed to drying out faster than the blinking can replace the lost moisture.

This condition is not only highly uncomfortable. According to the specialists, in the long run, eye dry can lead to eye inflammation, a predisposition for eye infections, corneal ulcers and so on. From this point of view, goggles are the perfect choice for eye protection as they can create a seal around your eyes that shields them from dust and drying out.

 

Better fitting

One common problem that bikers have with their eye protection is the fact that it can fall off if it does not fit well. However, such issues can be avoided if you decide to invest in goggles, as these gadgets usually feature an adjustable nose piece and strap that guarantees an excellent fit, regardless of the shape of your head.

They can be used off-road

If you like riding off the road, near fellow bikers, you probably know just how difficult it is to deal with the dust that gets in your eyes. Because of these challenging conditions, some visors are not suitable for the job.

However, differently from glasses, when wearing goggles, because of the tight seal that they form, dust is not able to cling to the inside lens surface. Because of this, most MX racers invest in racing goggles, rather than in glasses. Still, you should know that the models that they purchase have been specially made for off-road riding and, thus, they have a better design.

 

They are versatile

Another significant advantage that goggles have is that they are quite versatile. Therefore, when not worn while riding, they can be utilized when practicing extreme sports where eye protection is crucial.

This is possible because motorcycle goggles come equipped with various anti-glare coatings, UV protection filters, and other similar practical features.

 

They are compatible with useful accessories

Last but not least, goggles are worthy of your attention as they are compatible with a handful of accessories that can make the experience of riding even more enjoyable, no matter the weather conditions.

For instance, you can purchase an accessory called a tear-off. A tear-off is a thin film that covers the lens of the goggle, and that can be used to instantly clean your field of view if your vision is suddenly impaired because of the dirt and debris.

Moreover, you can also purchase roll-offs, an alternative to tear offs, as they do pretty much the same thing. What is more, some of the available goggles also come provided with replacement lenses. This way, when your goggles get too scratched, you can just swap the old lenses out, and place the new ones in.

 

 

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Virtual reality is a new concept that has gained a considerable amount of popularity recently, as the ability to lose yourself in a new version of reality is very appealing to most of us. However, every time somebody immerses himself/herself into the thrilling worlds made available by virtual reality, he/she has to isolate himself/herself by turning off the lights, muffing any outside noise and making sure that the real world is completely blocked out.

After assessing the situation, some modern arcades have decided to take a lesson from the old gaming bars and to integrate the social element into the virtual reality gaming experience. Now, one can go out, put on a pair of goggles that resemble some regular goggles for triathlon and play while still hanging out with friends and enjoying a drink. As a result, it could be said that, with the emersion of VR arcades, VR has taken a big leap in becoming an essential part of today’s entertainment scene.

How it works

The whole idea was seen as a way to add VR based games and experiences into the reality of pubs and bars. However, because the creators of the concept knew that drinking and playing VR games is not an ideal mix, some modifications to the bars where these modern arcades are placed have been made.

For instance, venues of this type are stocked with special headsets and audio straps that are tied up to the ceiling by using an extendable seat belt. To prevent the players from injuring themselves, they are supplied with a giant extra padded paying area.

Consequently, the players don’t roam too far, and they don’t end up bumping into clients that are not connected to the VR game.

Thanks to the success of the concept, some venues have started to treat VR nights in a similar way as major sporting events. Hence, the non-playing customers get to see a peak of what’s happening inside the game as in-game footage is streamed live on large TVs.

Therefore, other punters get to watch their friends playing while sipping a drink at the bar and waiting for their turn to play. What is more, if you are not there to necessarily enjoy the VR experience, you can just as well ignore the screens. Consequently, it could be said that the recipe that guarantees the success of the idea is that VR is only a small part of the whole going out to a bar experience.

 

Is it popular?

At this time, numerous such arcades function all around the world. For instance, there are a few pubs that use VR in London and Vienna. What is more, there is a high profile park that uses VR in Guizhou, China. According to the specialists, in the near future, we can expect VR to be just a normal part of the overall social experience.

Those that have gone out to venues of this kind consider them a cool, enjoyable experience. On top of that, bars of this type are now considered an excellent idea for a first date, primarily by those that are familiar with VR games. Therefore, it could be said that, in the future, going out might be a completely different experience, as playing darts in your local pub could soon be replaced by playing in VR instead!

Who came up with the concept?

The idea was popularized by VR Concept, a British company founded by Oli Lane and Anthony Nixon. While Lane has previously worked in the field of satellite propulsion, Nixon has gained experienced while developing IT infrastructure.

By combining their forces, they have managed to create a fun, entertaining space where people have a good time. As a plus, they have started to change the stereotype that arcades are places were only nerds go.

Although their chain of venues is relatively new, they currently draw quite a crowd, and they are seen as the place to go if you want to impress your friends by taking them to a cool and interesting location.

 

Is it safe?

Well, pretty much yes. Given that the players get to perform in a delineated space that has extra padding and a special infrastructure, there are not many risks. As a plus, after testing their concept and after seeing where things don’t go as planned, Nixon and Lane have made all the changes necessary so that their clientele is happy and completely satisfied with the experience.

Quality-wise, these venues are packed with top-notch equipment and with the latest gadgets and devices when it comes to VR. These new arcade pubs are suitable for both experienced players and newbies that are looking for a unique fun experience.

So, if you love a new challenge, and you are ready to trade your awesome tactical goggles for a pair of VR goggles, feel free to take a chance and give these bars a go!

 

 

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How to prevent swim goggles from fogging up

 

If you have ever tried a pair of night vision goggles, you most probably were impressed with their ability to help you see in the dark. Yet, you might have also wondered about their ability to do so when it’s pitch dark outside. The thing is that this type of goggles works in a particular manner; they take whatever light the environment supplies and intensify it.

That is the reason why they are often named image intensifiers, and that should give you a clear clue on how they truly work. Because the light used for this purpose is often infrared not visible with the naked eye, we often feel tempted to believe that it is genuinely dark outside. That is why night vision goggles might seem like such an excellent device.

So, the question starting this article still stands. Can a pair of such goggles work in absolute darkness? The direct and straightforward answer would be ‘no’, but a more elaborate response is needed, and this is the reason why.

Absolute darkness exists in only exceptional circumstances

Do you still recall how we talked about the infrared light just earlier? What we perceive as complete darkness with the naked eye is anything but, from a physics standpoint. What we don’t catch with our normal vision, our goggles do, and that is any tiny amount of light that comes from the environment.

Something as faint as the light given by the moon and the flickering stars up above can be harnessed and used by the goggles to present you with an accurate image of your surroundings. It may sound like as long as you are out in the open, there is a chance that the celestial bodies give enough light to ensure that your goggles will work.

What about other places? What about the bottom of a cave, or anywhere the natural light of the moon and the stars cannot reach? Again, there is an explanation why you can still use your goggles or a night vision monocular even when you are in such locations.

The thing is that everything that surrounds us and still has a temperature that is above absolute zero still emits some infrared light. That is enough for your night vision goggles to work, and that is why they are so useful for many categories of users. The chances are that you will not encounter absolute darkness conditions as a general rule.

 

Why are some goggles more powerful than others?

Taking into account all the information supplied earlier, you are probably wondering if just any goggles will work. The truth is that some models work better than others, due to how they are designed and especially the quality of the optics installed on them. For instance, models that have multi-coated lenses, and also have some anti-reflective properties, will do a better job at harnessing the light from your surroundings to provide you with an image that is not deterred by insufficient light.

Another feature that might significantly improve the abilities of a pair of goggle is a built-in illuminator. This will create more infrared light for the goggles to catch and process for the image you can then see through them. One thing you should bear in mind, however, is that no illuminator can provide the same viewing distance that you would be able to take advantage of in normal light conditions.

Nonetheless, the better equipped your goggles are, the better the quality of the image you will be able to observe through their lenses.

Are there other devices that can be used?

Night vision goggles are not the only devices you can take advantage of to see more clearly in the dark. They do have their benefits, as they are easy to use and very convenient regarding portability and the like. Some people opt for survival monoculars when they want to gauge their surroundings, but they could, just as well, prefer goggles due to the advantages mentioned earlier.

Nonetheless, there are situations when the use of other types of devices is required. For instance, firefighters need other aids to see through smoke. Thermal imaging is the technology they need to see through the blanket of smoke that can cover a location that is engulfed by flames. There are special optics-based devices that cater to such specific needs, so night vision goggles don’t have such extensive applications.

Where thermal imaging devices differ from regular goggles to be used at night is at their ability to capture the heat signature provided by any body with a temperature above absolute zero. Computer-enhanced screens also contribute to the efficiency of these devices that are often used to identify survivors in various emergency conditions.

 

Conclusion

The purpose of this article is to offer you a comprehensive answer to the question in the title. While night vision goggles cannot work in absolute darkness, the thing is that most of the time, you don’t need them to deliver such impossible performance. For what they are created to do, they do a fantastic job, as they can work with sources of light that are invisible to the naked eye.

You must bear in mind that these goggles work with the tiniest of light sources that are delivered by the environment. However, since almost everything around us is capable of emitting light, even if it is the infrared kind, your goggles can catch this light and turn it into the image you will be able to observe through your goggles.

When presented with various options of night vision goggles, it is preferable that you go for a model that comes with enhanced optics and a built-in illuminator, as this helps a great deal with rendering a clearer image through your goggles.

For more demanding applications, such as identifying survivors in case of emergencies, other optics-based products such as thermal imaging devices are more indicated.

 

 

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If you have ever watched a movie in which night vision was used, or you have ever used a device that takes advantage of this technology to help people see in the dark, you have most probably noticed that the image shown through such devices is always green. The two come together so well that the moment someone mentions night vision binoculars to you, that instantly brings in front of your eyes that green image you are so familiar with.

The advantages of seeing what our eyes can’t see in the dark are tremendous. For military applications, as well as civilian operations, night vision technology offers tremendous benefits. It can help locate survivors of natural cataclysms, and it can pinpoint the location of an enemy. As a layman, you are, however, interested in learning why the image of this type of vision is green. Let’s make it all clear.

When was this technology invented?

You might be surprised to learn that this technology has been around for a while, being used extensively in World War II. Both the US military and the Reich, worked on this technology before and during the war, with the purpose of using it on the battlefield. Both the infantry and the tank divisions used it to identify the location of their enemies.

However, the night vision technology used more than half a century ago was nothing like the elegant portable night vision goggles we’re practically identifying it with. The devices used during those times were bulky and needed manpower to be transported and used in the field.

The idea of making this technology portable, as well as the possibilities, did not occur on a practical level until the Vietnam War when the US military began to use the first devices that could be worn by a soldier on his head.

The main principle that night vision goggles use remains the same: it is the use of whatever light is emitted by the surrounding environment, coupled with image intensification technologies. No matter how advanced night vision is today, you should remember that the same original idea that was used during the aforementioned conflicts continues to stay at its foundation.

So, what’s the idea with the green image?

To understand how the green vision occurs, we need to learn a bit more about all the technologies that are involved. These technologies are employed on goggles, as well as scopes and night vision cameras. They are essential for how the green image occurs, and we will approach them as follows.

Thermal imaging

This technology is capable of telling the heat signature of an object against the surrounding environment. In other words, it is capable of telling when the temperature of the target is different from the rest of the objects around.

Active illumination

While thermal imaging sounds something that is used in military-grade operations, illumination is pretty straightforward. The image intensification used by goggles, or other optical devices, might need more light input to process and render the image before your eyes when you look through them.

The illumination used is very close to the infrared band. By adding more light to the environment, the devices create better conditions for the night vision device to harness it and transform it into an image.

Image intensification

We have already mentioned it a few times, and now it’s the moment to reveal that this is the technology responsible for the green image you see through your night vision monocular, goggles, scope, or any other similar device, designed to offer you the ability to see in the dark.

 

How does image intensification create the image you see?

What happens when we look through any vision device is that the image intensification technology employed on the device takes the light emitted by the celestial bodies and multiplies it. That is why we can get a pretty good image of what surrounds us.

As you can guess by now, it is not possible for your goggles, monocular, or binoculars to work in pitch dark, but, the thing is, most of the time, you won’t need your device to perform in such a manner. Absolute darkness is difficult to achieve, so situations that would meet such conditions are extremely rare.

What about the green vision?

To get our explanation farther here is some more information that will help you understand how night vision devices work. When the photons from the light around hit the lens, they have all the colors. The thing is that the photons are turned into electrons, and then all the information which might relate to colors perceived by our eyes/brain turn only into black and white.

The explanation is that the image intensification element is made from phosphorus. As you may well know, phosphorus is green, and its luminance capability manages to capture the light from the surrounding environment and present it to you. Therefore, the image you will see is green, as well.

 

But why is phosphorus used?

It is not by accident that these devices use phosphorus. It all has to do with something called chromatic sensitivity. This ability is related to how sensitive the human eye is toward different colors. From the entire spectrum, the color green is the absolute winner, and that is why night vision goggles and other similar products are made with phosphorus.

To go even deeper, this chromatic sensitivity of the human eye toward the green color means that we perceive more shades of this color than of any other. What happens when our eyes can tell the differences between different values of green is that we can perceive shapes and objects.

Another advantage identified by specialists in this field is that we can tolerate looking at the green color for more extended periods of time than at any other color. The computer screens are green for this reason, as well.

And now you know why the night vision showed through various devices designed to help you see in the dark is green, and how that is beneficial for the human eye.

 

 

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To see in the dark, all the optical devices that might be helpful for this purpose need to have a source of light present. They are what specialists call light or image intensifiers, and they cannot present you with an image of your surroundings in conditions of absolute darkness. Of course, such a thing would be difficult to achieve, so, for the most part, night vision goggles and other similar devices can do a pretty good job of helping you see in the dark.

However, since such devices use the exterior light to enhance the image in front of the people handling them, there was another problem to address. Strong light sources, suddenly appearing in the field of view, could create such conditions that users of night vision devices risked temporary blindness.

How have night vision devices evolved?

Since the point of using a night vision item could become null if a simple flashlight was pointed at the person using it, specialists in the field thought about creating devices that were not as susceptible to dangers such as the one mentioned just earlier.

For this particular reason, something called a light limiter was invented. Today, all the modern equipment used for night vision comes with such light limiters. The role of this feature, as you may well suspect, is to make sure that light sources that are strong enough to mess up with the intensifying light feature of your gear will no longer interfere.

But how does such a unit work? You may wonder. The point of using night vision is to detect the light radiation that is undetectable for the naked eye. Making use of infrared and ultraviolet radiation, the night vision devices that are currently available, for military and civilian use, ensure that the spectrum for detecting light is enlarged and enhanced.

At the same time, the technology used makes sure that what light sources are too intense don’t hurt the users’ eyes, which is the primary role of the limiters we talked about.

 

Understanding the main night vision options

Without having to become an expert in optics, you might like to learn a few things about the main options used today for night vision. While the goggles used by military experts and seasoned hunters might use image intensifiers, other devices, such as night vision binoculars, might come with active illumination features, too. We will explain both types right away, as that will serve as an excellent introduction to the kinds of light that play a role in how night vision works.

 

What are image intensifiers?

Image intensifiers are devices using a type of technology that focuses on artificially increasing (amplifying) the number of photons emitted by the sources of light surrounding us. Be it that you want to hunt under the light of the moon and the stars, these celestial bodies will produce enough illumination that can be gathered by your night vision device and enhanced.

In other words, the light received through the lenses is multiplied, resulting in an image that you can see. The devices that use this type of image enhancement are called NVDs, which is short for night-vision devices. By enhancing the visible light, as well as the infrared light that is not visible with the naked eye, these units are capable of providing you with the ability to see in the dark.

You can find some highly sophisticated devices, and they can be used in a broad array of applications. You might not necessarily see a cheap night vision monocular that can provide outstanding results, but there are products even intended for civilian applications that can offer such outstanding performance.

How is the active illumination used?

The other popular option that you have at your disposal is active illumination. This kind of technology uses the image intensification technology, but it also adds a source of light. The said source of light is infrared, and its central role is to add more light to the surroundings so that the results are enhanced.

Shortwave infrared light can be used by more advanced devices, for the simple reason that the shorter the waves, the more light energy they give. Wavelength is an exciting aspect we should talk about. From the visible light spectrum, violet comes with the shortest wavelength, and therefore, it provides the most energy. For this reason, the violet light gives the most radiation.

However, violet is part of the visible light spectrum, as mentioned, and that is why you need to take advantage of the infrared light, which is part of the invisible (to the naked eye) light spectrum.

 

What are the types of light used by night vision technology?

Now that you know more about the night vision technology and its types, let’s make everything clear regarding the light used for making it possible. The infrared spectrum comes in three forms, as follows:

Near-infrared – the wavelength for this type of light is between 0.7 and 1.3 microns; it is at the border with visible light.

Mid-infrared – the wavelengths for this type of light is between 1.3 and 3 microns; many electronic devices that are readily available use this type of light.

Thermal-infrared – it takes most of the infrared spectrum; its wavelength varies between 3 to more than 30 microns.

Why are these light types important?

Night vision would not be possible without a source of light. Visible light, as is the one given by the surroundings, celestial bodies, and not only, is harnessed by night vision equipment to create that image you can see through your lenses. The other type of light used belongs to the light spectrum that is not visible with the naked eye, and it is called infrared.

You can use night vision today for a wide variety of applications. For surveillance, hunting, and many other purposes, it can prove a valuable tool. Learning about it can also help you understand how it works, and expand your general knowledge on products you use.

 

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If you are a motorcycle rider, you’ve probably asked yourself why the specialists recommend that one uses special goggles while driving his/her bike. To be of help to you, we have composed this list of reasons why it is vital that one invests in an item of this kind.

They keep your eyes protected

One of the most annoying things that can happen to you while riding your motorcycle is having debris and insects getting in your eyes. This is not only irritating and distracting to the rider, but it can also cause damage to one’s eyes.

What is more, there have been cases where motorcyclists that drove without eye protection were left blind after bugs and road debris hit their eyes while riding at high speeds. Therefore, investing in high-quality eye gear is a must if you want to make sure that your face is protected against such unfortunate accidents.

Goggles are particularly important if you do not have a helmet that offers full coverage of your face. However, before you invest in any motorcycle and ATV goggles, you should make sure that the product that you have opted for meets the required standards.

 

No more side impacts

When it comes to deciding between glasses and goggles, some users seem to prefer using sunglasses as a means of protection. However, it has been proven that goggles are better at keeping your eyes safe. This is the case because goggles seal themselves around your eyes better.

Furthermore, goggles can provide better protection from side impact. Hence, if a bug hits you while you are looking off the side, you won’t have to deal with the painful consequences. Still, it is worth pointing out that newer sunglasses models are also worth your attention as they have enough lens curvature to also deflect side impacts.

 

They protect you against the wind

If you ride at high speeds, you probably already know that glasses simply cannot keep the wind from entering at the edges. As a result of the impact of the wind, some riders end up suffering from a condition called the dry eye. In other words, your eye is predisposed to drying out faster than the blinking can replace the lost moisture.

This condition is not only highly uncomfortable. According to the specialists, in the long run, eye dry can lead to eye inflammation, a predisposition for eye infections, corneal ulcers and so on. From this point of view, goggles are the perfect choice for eye protection as they can create a seal around your eyes that shields them from dust and drying out.

 

Better fitting

One common problem that bikers have with their eye protection is the fact that it can fall off if it does not fit well. However, such issues can be avoided if you decide to invest in goggles, as these gadgets usually feature an adjustable nose piece and strap that guarantees an excellent fit, regardless of the shape of your head.

They can be used off-road

If you like riding off the road, near fellow bikers, you probably know just how difficult it is to deal with the dust that gets in your eyes. Because of these challenging conditions, some visors are not suitable for the job.

However, differently from glasses, when wearing goggles, because of the tight seal that they form, dust is not able to cling to the inside lens surface. Because of this, most MX racers invest in racing goggles, rather than in glasses. Still, you should know that the models that they purchase have been specially made for off-road riding and, thus, they have a better design.

 

They are versatile

Another significant advantage that goggles have is that they are quite versatile. Therefore, when not worn while riding, they can be utilized when practicing extreme sports where eye protection is crucial.

This is possible because motorcycle goggles come equipped with various anti-glare coatings, UV protection filters, and other similar practical features.

 

They are compatible with useful accessories

Last but not least, goggles are worthy of your attention as they are compatible with a handful of accessories that can make the experience of riding even more enjoyable, no matter the weather conditions.

For instance, you can purchase an accessory called a tear-off. A tear-off is a thin film that covers the lens of the goggle, and that can be used to instantly clean your field of view if your vision is suddenly impaired because of the dirt and debris.

Moreover, you can also purchase roll-offs, an alternative to tear offs, as they do pretty much the same thing. What is more, some of the available goggles also come provided with replacement lenses. This way, when your goggles get too scratched, you can just swap the old lenses out, and place the new ones in.

 

 

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Virtual reality is a new concept that has gained a considerable amount of popularity recently, as the ability to lose yourself in a new version of reality is very appealing to most of us. However, every time somebody immerses himself/herself into the thrilling worlds made available by virtual reality, he/she has to isolate himself/herself by turning off the lights, muffing any outside noise and making sure that the real world is completely blocked out.

After assessing the situation, some modern arcades have decided to take a lesson from the old gaming bars and to integrate the social element into the virtual reality gaming experience. Now, one can go out, put on a pair of goggles that resemble some regular goggles for triathlon and play while still hanging out with friends and enjoying a drink. As a result, it could be said that, with the emersion of VR arcades, VR has taken a big leap in becoming an essential part of today’s entertainment scene.

How it works

The whole idea was seen as a way to add VR based games and experiences into the reality of pubs and bars. However, because the creators of the concept knew that drinking and playing VR games is not an ideal mix, some modifications to the bars where these modern arcades are placed have been made.

For instance, venues of this type are stocked with special headsets and audio straps that are tied up to the ceiling by using an extendable seat belt. To prevent the players from injuring themselves, they are supplied with a giant extra padded paying area.

Consequently, the players don’t roam too far, and they don’t end up bumping into clients that are not connected to the VR game.

Thanks to the success of the concept, some venues have started to treat VR nights in a similar way as major sporting events. Hence, the non-playing customers get to see a peak of what’s happening inside the game as in-game footage is streamed live on large TVs.

Therefore, other punters get to watch their friends playing while sipping a drink at the bar and waiting for their turn to play. What is more, if you are not there to necessarily enjoy the VR experience, you can just as well ignore the screens. Consequently, it could be said that the recipe that guarantees the success of the idea is that VR is only a small part of the whole going out to a bar experience.

 

Is it popular?

At this time, numerous such arcades function all around the world. For instance, there are a few pubs that use VR in London and Vienna. What is more, there is a high profile park that uses VR in Guizhou, China. According to the specialists, in the near future, we can expect VR to be just a normal part of the overall social experience.

Those that have gone out to venues of this kind consider them a cool, enjoyable experience. On top of that, bars of this type are now considered an excellent idea for a first date, primarily by those that are familiar with VR games. Therefore, it could be said that, in the future, going out might be a completely different experience, as playing darts in your local pub could soon be replaced by playing in VR instead!

Who came up with the concept?

The idea was popularized by VR Concept, a British company founded by Oli Lane and Anthony Nixon. While Lane has previously worked in the field of satellite propulsion, Nixon has gained experienced while developing IT infrastructure.

By combining their forces, they have managed to create a fun, entertaining space where people have a good time. As a plus, they have started to change the stereotype that arcades are places were only nerds go.

Although their chain of venues is relatively new, they currently draw quite a crowd, and they are seen as the place to go if you want to impress your friends by taking them to a cool and interesting location.

 

Is it safe?

Well, pretty much yes. Given that the players get to perform in a delineated space that has extra padding and a special infrastructure, there are not many risks. As a plus, after testing their concept and after seeing where things don’t go as planned, Nixon and Lane have made all the changes necessary so that their clientele is happy and completely satisfied with the experience.

Quality-wise, these venues are packed with top-notch equipment and with the latest gadgets and devices when it comes to VR. These new arcade pubs are suitable for both experienced players and newbies that are looking for a unique fun experience.

So, if you love a new challenge, and you are ready to trade your awesome tactical goggles for a pair of VR goggles, feel free to take a chance and give these bars a go!

 

 

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