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    Why are the night vision goggles commonly seen in green colours?

    • Author:Durham Technology
    • Release on :2018-11-22
    The human is more sensitive to shades of green than anything else, which can be very useful when working in a monochromatic environment. But green is also the least"taxing"on the eyes,caused as little fatigue as possible. But our night vision goggles use black white OLED display image and CMOS technology,it can make see clear at night.

    Actually the night vision equipment turns incoming colored light to black and white but the night vision goggles are given green tint by the makers because the eye is most sensitive to light wavelengths near 555 nanometers i.e.green.

    Even at night,the photons that hit the lens at front of night vision goggles are carrying light of all colors. But when they are converted to electrons,there's no way to preserve that information. Effectively,the incoming,colored light is turned into black and white.Why,then,don't night vision goggles look black and white? The phosphors on their screens are deliberately chosen to make green pictures because our eyes are more sensitive to green light. It's also easier to look at green screen for long periods than to look at black and white ones(that's why early computer screens tended to be green). Hence, night vision goggles have their characteristic,eerie green glow.