PHYS 131 Lecture Notes - Lecture 15: Cie 1931 Color Space, Dichroic Filter, Spectral Sensitivity
14 Nov 2017
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Document Summary
The complement of any spectral color may be found by extending a straight line from that color through white and to the opposite side of the horseshoe. The human eye with normal vision has three kinds of cone cells which sense light, with spectral sensitivity peaks in short (s, 420 440 nm), middle (m, 530 540 nm), and long (l, These cone cells underlie human color perception under medium- and high-brightness conditions. The normalized spectral sensitivity of human cone cells of short-, Middle- and long-wavelength types: three kinds of cone cells, sense light, with, spectral sensitivity peaks in short (s, 420 440 nm), middle (m, 530 540 nm), and long (l, 560 580 nm) wavelengths. In very dim light color vision disappears, and high sensitivity, non-chromatic night-vision receptors, called rods, take over. Adaptation: between five to ten minutes in the dark the threshold of seeing makes a sudden drop to lower levels of light intensity.
