How Night Vision Works

All Starlight technology Night Vision Devices consist of several main parts: an objective lens, an eyepiece, a power supply and an image intensifier tube (Photocathode Tube).

Night vision devices gather existing ambient light (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.

 

1 - FRONT LENS
2 - PHOTOCATHODE
3 - MICROCHANNEL PLATE
4 - HIGH VOLTAGE POWER SUPPLY
5 - PHOSPHORUS SCREEN
6 - EYEPIECE

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