An introduction to the study of colour vision (1915)
Parsons, John Herbert, Sir, 1868-1957 · Cambridge [Eng.] University Press; New York, G. P. Putnam's Sons · leaf 79
d. Sinntsorg. xii.15, 1896. Konig, p. 190. « Phil. Trans. Roy. Soc. Lond. CLXXxm. 537, 1892. 62 COLOUR VISION reduction necessary when the illumination on the screen by eachmonochromatic light was 1 foot-candle were calculated. These resultsgive the actual illumination at the point of extinction of… … S (0 15 20 25 30 3S 40 iS 50 SS 60 Fig- 19. Extinction of colour curve. Abscissae, wave-lengths of the prismaticspectrum ; ordinates, intensity of the illumination in candle-feet on the screen whenthe colour just vanishes. (Abney.) In the extinction of light a curve was plotted showing what wasthe…
Color vision
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