5 ms·
Yes it does, at least with additive mixing.
by Hermel 12y ago
Yes it does, at least with additive mixing.
- beejiu 12y agoWell, it could only ever be an approximation because you cannot make pure white light using two wavelengths of light in the real world. Waves of blue light and yellow light (AKAIK) would not be perceived as white by the eye.
- sp332 12y agoWhy not? Yellow light ~580nm stimulates both long and medium ("red" and "green") photoreceptors in the eye. Blue light below 480nm stimulates the short "blue" photoreceptors, so you should see white. https://en.wikipedia.org/wiki/Color_vision#Physiology_of_color_perception https://en.wikipedia.org/wiki/Color_vision#Physiology_of_col...
- klodolph 12y agoIn RGB, (127, 127, 0) is not a "pure" yellow, it is just the color you get when you mix red and green primaries. The human eye is actually rather poor at spectrophotometry, which is why colorimetry and spectrophotometry are distinct subjects. However, when you say "pure white light"... there is no such thing! White light is a combination of different wavelengths of light. You can indeed make light that looks white (and therefore is white) by combining monochromatic yellow and monochromatic blue light sources. Amazing! Even though it will look white, objects illuminated by this unnatural light source will have unexpected colors. This is quantified by the CRI of a light source. Incandescent lights are defined to have a CRI of 100, but this is just a convention: the blackbody spectrum is quite common. If you grew up under fluorescent lamps, colors under the light of day might seem quite unusual.