Night Vision.

Night vision devices ( NVDs ) otherwise known as night optical devices ( NODs ) are photocathode tube viewing devices used to see at night.

These devices gather existing ambient light (starlight, moonlight or near and mid 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 or white, amplified re-creation of the scene you were observing.

 

ATN Night Vision Generations.

Generation Digital

Generation Digital Display.

Digital has the lowest quality display.


Generation 2

Generation 2 Display.

Generation 2 are photocathode tube devices. They have the lowest quality display image of the photocathode tube devices.

 

 Generation CGT

Generation CGT are photocathode tube devices. They have improvements over the generation 2 displays.

Generation HPT

Generation HPT are photocathode tube devices. They have improvements over the generation CGT displays.

Generation 3

Generation 3 display.

Generation 3 are photocathode tube devices. They have improvements over the generation HPT displays.

Generation 3A

Generation 3A are photocathode tube devices. They have improvements over the generation 3 displays.

Generation 3P

Generation 3P are photocathode tube devices. They have improvements over the generation 3A displays.

Generation WPT

Generation WPT display.

Generation WPT are photocathode tube devices with a high contrast white and black display. They have improvements over the generation 2 displays.

 

 

Generation 4

Generation 4 are photocathode tube devices. They have significant improvements over the generation 3P displays.

Generation 4 display.