Why is night vision green?
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The reason night vision images appear green is because the devices use a phosphor screen to convert the electrons into visible light. Phosphors emit light when excited by electrons. Green phosphors are used because our eyes are more sensitive to shades of green, thanks to the way our rods and cones are structured. Green light appears brighter to us in low-light conditions compared to other colors.
So, when the electrons are converted back into visible light by the phosphor screen, they emit a greenish glow, making the image appear green in night vision devices.
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