Why night vision is green and the myth about red goggles seeing 'demons'

Published on March 20, 2026
Duration: 1:08

This expert-level entry from Forgotten Weapons explains why night vision typically appears green. The color originates from the phosphor screen, with green chosen because the human eye can discern the most shades of it, aiding detail perception. White phosphor offers higher contrast for some users. The video also debunks the myth of red night vision goggles in Vietnam seeing 'demons', clarifying that color is merely screen output.

Quick Summary

Night vision typically appears green because the phosphor screen emits this color, which is in the middle of the human visual spectrum. This allows the eye to perceive the most shades of green, enhancing detail recognition. White phosphor offers higher contrast for some users, and the myth of red goggles seeing 'demons' is false.

Chapters

  1. 00:00Night Vision Color Source: Phosphor Screen
  2. 00:15Why Green Phosphor is Used: Visual Spectrum
  3. 00:29Benefits of White Phosphor: Higher Contrast
  4. 00:48Debunking Red Night Vision 'Demons' Myth

Frequently Asked Questions

Why is night vision typically green?

Night vision is usually green because the phosphor screen emits this color. Green is chosen as it lies in the middle of the human visual spectrum, allowing the eye to discern the most shades of green, which aids in perceiving finer details.

What is the advantage of white phosphor in night vision?

White phosphor (white phos) in night vision devices offers a higher contrast between black and white elements. This increased contrast can make it easier for some individuals to perceive and identify objects and details in low-light conditions.

Is the myth about red night vision goggles seeing 'demons' true?

No, the rumor about red night vision prototypes in Vietnam seeing 'demons' is a myth. The color of the screen output is simply a function of the phosphor used and does not affect the underlying image or create supernatural phenomena.

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