Colour-blindness and Colour-perceptionK. Paul, Trench, Trübner & Company, Limited, 1891 - 311 pages |
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Common terms and phrases
able absolute psycho-physical units after-image blind blue-green bright brown called candidate centre colour appears colour-blind person colour-perception coloured glass coloured objects combination complementary colours contrast correctly corresponding crimson dark daylight defect definite colours difficulty distance distinguish Edition fact four-unit gaslight gray greenish Holmgren's intensity junction Lantern large number looked luminosity match mistakes modified unit neutral band neutral glasses normal normal-sighted person number of colours obtained olive-green orange painted physical series physical units Pilotage pink Pocket Test points of difference polariscope Prussian Blue psycho-physical perception psycho-physical series pure green red and green red and violet red end red rays red-green reddish represented retina rose scotoma seen sensation shade similar simultaneous contrast slides spectral colours spectroscope spectrum standard red test for colour-blindness theory three-unit Trinity House two-unit colour-blind violet end visual purple whilst white light wools yellow and blue yellow-brown yellow-green Young-Helmholtz theory