CIS 140 Lecture Notes - Lecture 4: Color Vision, Spectral Sensitivity, Trichromacy
20 Dec 2018
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Document Summary
Helps you find/see things (slightly hidden oranges in a tree: evolution- monkeys foraging for fruit- easier to find/survive with color vision signaling, stop lights, colorful frogs- don"t eat me. Light spectra infrared- if we could see it, heat from eyes interfere from vision- Ultraviolet- eyes are sensitive to damage- eyes block this light from coming in. Any light can be thought of as a mixture of light quanta(photons) at different wavelengths behavioral trichromacy. With normal color vision, test light can be matched by max of 3 primaries with only two primaries some lights cant be matched with four primaries matches aren"t unique. L m s cones- only three classes of cones in the retina, each with. Cone response is number of isomerizations (in the cone) Two lights match when they produce the same triplet of cone responses. Combo of 3 different cones- however, info lost.
