American Technologies Network ATN NVM14 User Manual download pdf (Page 11)

FRONT

LENS

HIGHT VOLTAGE

POWER SUPPLY

PHOSPHORUS

SCREEN

PHOTO-

CATHODE

MICROCHANNEL

PLATE

EYEPIECE

IMAGE INTENSIFICATION NIGHT VISION

At the heart of this type of night vision device is the image intensifier tube

(IIT). The tube gathers existing ambient light (including starlight, moonlight or

infra-red light) through the front lens. This light, which is made up of photons

goes into a photocathode tube that changes the photons to electrons.

The electrons are then amplified to a much greater number through an

electrical and chemical process. The electrons are then hurled against a

phosphorus screen that changes the amplified electrons back into visible light

that you see through the eyepiece. The image will now be a clear green-hued

amplified re-creation of the scene you were observing.

HOW FAR YOU CAN SEE

There are a few variables that can affect the distance you can see with a night vision device. The larger the object the easier it is to see is

one obvious factor. The degree of detail you can see from a given distance will depend in part on the type of device you are using.

Lighting conditions play a large part in determining distance range. the more ambient light you have (starlight, moonlight, and infrared

light) the better and further you will be able to see. You can always see further on a night when the moon and stars are out, than when it’s

cloudy or overcast. We typically state that you can tell the difference between a male and a female or a dog and a deer at about 75 to 100 yards.

However, if you were looking across an open field and there was a half moon out you could see a barn or a house 500 yards away.

NIGHT VISION DEVICE CLASSIFICATIONS

Night vision devices are categorized according to the technical specifications

of the image intensifier tube. Throughout the years there has been substantial

improvement over all generations of image intensifier tubes. Each type has

progressively improved and benefitted by new technologies. Pending specifications

and technology level, our units are designated as either a 1st, 2nd and WPTdevice.

1st generation is currently the most popular type of night vision in the world.

Utilizing the basic principles described earlier, a 1st generation unit will amplify the

existing light several thousand times letting you clearly see in the dark. These units

provide a bright visible image at a low cost, which makes them a popular choice for

boating, observing wildlife, or providing security for the home.

2nd generation is primarily used by law enforcement, and has a variety of other

professional applications. Consequently, 2nd Gen. units are more expensive than

the comparable 1st Gen. units. 2nd generation devices have an additional micro-

channel plate, commonly referred to as an MCP. This added component allows

2nd generation devices to amplify the light many more times than 1st generation,

producing a brighter and sharper image.

DEVICE CLASSIFICATIONS

GENERATION 1

GENERATION 2

STANDARD NIGHT VISION VIEW

ATN WPT

™

REPRESENTS A NEW STANDARD FOR NIGHT VISION

In ATNs continuing effort to supply our clients with cutting edge Night Vision solutions we are proud to

Studies show that nighttime scenes appear remarkably more natural in black and white versus the usual green.

provides users with this natural B&W Night Vision Image.

Operators that tested units that use ATN WPT™ reported a significantly better degree of detail, overall

contrast, full moon similarity and range of shades. WPT™ provides more discriminating shades of intensity

between white and black than between green and black resulting in better contrast and depth perception then

when compared to green phosphor NVG's.

The majority of the WPT™ performance characteristics are on par or better then the latest Gallium Arsenide

based image intensifier tubes.

7 out of 10 users name WPT™ as a “Night Vision Preference” when compared with common green Night

Vision, especially in an urban environment. “No lab testing needed on WPT™ - the depth perception is phenomenal

and noticeably better than what I used in the past.” - SOF Operator K.

Designed for the most demanding customers WPT™ is now available in almost all of ATNs of systems.

Thermal imaging devices are subject to one or more of the export control laws and regulations of the U.S. Government. Pending

the model these products are under the control jurisdiction of either the US Department of State or the US Bureau of Industry

and Security – US Department of Commerce. Export without proper licensing or consent is strictly prohibited.

Thermal imaging devices are subject to one or more of the export control laws and regulations of the U.S. Government. Pending

the model these products are under the control jurisdiction of either the US Department of State or the US Bureau of Industry

and Security – US Department of Commerce. Export without proper licensing or consent is strictly prohibited.

ABOUT NIGhT VISION

WPT NIGHT VISION VIEW

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American Technologies Network ATN NVM14 User Manual Page 11

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