Understanding Night Vision Goggles

Introducing Night Vision Goggles –

The night vision technology enables to see in almost complete darkness. This process is generally utilized by the police and military forces. Night vision goggles are nothing but the non-magnified monoculars that come with two eyepieces for optimal viewing purposes instead of providing just one.

Generally, night vision goggles are very popular devices amongst both novice and experienced users because of their ease of use, comfort and convenience. These outstanding units are head mounted and ensure easy hands free navigation.

How Do Night Vision Goggles Work?

Night vision goggles allow you see a dim, dark scene in an array of simple and easy steps, like:

1. Dim light from the night scene enters the lens to the front. The light comprises of photons, which are nothing but the light particles, of different colors.
   
2. When the photos enter the goggles, they strike a light-sensitive surface, which is known as photocathode. A photocathode seems a bike like a precise solar panel and helps in converting photos into electrons – the tiny subatomic particles carry electricity round a circuit.
3. A photomultiplier – a type of photoelectric cell, amplifies electrons. The electrons entering the photomultiplier result in many more numbers of electrons leaving it.
4. The electrons that leave the photomultiplier come across a phosphor screen – which seems like the same screen in an old-fashioned television. As the electrons hit the screen, they create tiny flash of light.
5. Though there are many more photons than the entered originally the goggles, the screen offers a much brighter version of the original scene.

Why Do You Buy Night Vision Goggles?

Do you want the most durable, best performing model available on the market? If yes, then you should take a look at the Mil-Spec PVS-7 Goggles that have an outstanding track record of use with the US Military. The main reason behind considering this eye optics is because of more natural feel and better depth perception than other devices.

However, the dual image tube models like the BNVD-15 and DTNVG deliver the stereo vision which allows every eye to see its own slightly different images than the same picture being shared by both eyes. This stereo vision offers better depth perception to dual tube units ensuring improved navigation facility, allowing you to judge the distance in a better way.

Though a night goggle tends to be heavier and less versatile than a superior-quality monocular, having the vision in both eyes makes it a lot easier for new users to acclimate to, instead of having an eye in the dark. Even, you will get an extensive selection of units like mono goggles that are light weights and single eye units. They can be worn on the head.

Bottom Line –

When it comes to buying night vision goggles, you should look no further than Night Vision 4 Less. We have the industry-standard night vision goggles that can allow you see what you’ve been missing all the while. For more information, please visit our website at https://www.nightvision4less.com/night-vision-goggles.aspx.

How Do Night Vision Goggles Work?

Night vision goggles have fascinated people over the decades. You have to agree that, they are pretty cool, right! Put on a pair of these goggles and you’ll be able to see in the dark. They are the coolest equipment on their utility belt.

When you see night vision in a phrase, you probably think of some sort of spy or action movie you’ve seen. You think that someone straps on a pair of night vision goggles to find someone else in the dark and capture them. You may wonder “Do they really work? Can you actually see in the dark?”

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In fact, the answer is definitely yes. The night vision goggles provide you with the ability to see in complete darkness and improve vision in low light environments. With proper night vision equipment, you can able to see a person standing over 200 yards away in a moonless and cloudy night.

Image quality improvement

The goggles work by collecting small amounts of light including the lower portion of infrared light, which are present; but maybe invisible to your eyes. It develops to the point that you can see the image easily.

Thermal imaging

Thermal imaging goggles are night vision goggles which can function without light. This technology works by capturing the upper part of infrared light, emitted as heat by objects instead of simply reflected like light.

However, the hotter objects like warm bodies emit more amount of light than cooler objects like buildings or trees. With these goggles, you can see through complete darkness and weather obstructions like rain, fog and smoke.

FLIR Scout TK Thermal Monocular

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Passive night vision goggles –

Passive night vision goggles absorb the atmospheric light within the user’s general area. You can see the objects, other people and their surroundings in great detail over a very long distance. However, green color is used to display these images, allowing you catch a glimpse of detailed images easily than they would with a brighter color like yellow or red. In addition to, green colors helps the eyes to adjust to natural surroundings when the goggles are taken off.

Active night vision goggles –

Instead of using natural light, active night vision goggles send out the infrared light source. The reflection of infrared light produces an image. Though the light source is produced artificially, active night vision produces higher resolution images than passive night vision goggles.

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Commercial equipment like home surveillance devices make the use of this technology. But the military prevents using active night vision goggles as the infrared light source can expose the location of user.

Bottom Line –

Do you want to make the purchase of night vision goggles? Please take a look at a comprehensive range of night vision goggles for sale at Night Vision 4 Less and make a right selection for your night viewing requirements. For more information about our products and specifications, please visit our website at http://www.nightvision4less.com/night-vision-goggles.aspx.