Night Vision Glasses

Written by Stacy Chbosky
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Night vision glasses come in two basic forms: night vision goggles, and night vision binoculars. Technology is not to the point yet where night vision glasses can worn like traditional glasses, supported by the ears and the bridge of the nose. Two of the most important components of all night vision equipment are the battery power source, and the tube. The power source and tube are still too bulky to make super-lightweight night vision glasses possible.

The Basic Premise Behind Night Vision Glasses

All NV equipment works in basically the same way. The key players to any NV device are the lens, the tube, the power source, and the eye piece. The tube, also known as the image intensifier tube, is where the magic really happens.

Light is gathered in through the lens. Not all light is visible to the eye. Furthermore, light comes in different wave lengths. The lens is very flexible. It can take in all different kinds of light (infrared light, visible white light such as starlight) in varying levels of intensity. Even a tiny bit of starlight is enough for your NV glasses to work.

These photons are projected into the tube. There, electrical and chemical processes turn the photons into electrons, and increase these electrons in number. The multitude of electrons is then hurled against a phosphorus screen, which users peer at through the eye piece or eye pieces.

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