Colour-blindness and Colour-perceptionK. Paul, Trench, Trübner & Company, Limited, 1891 - 311페이지 |
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48개의 결과 중 1 - 5개
2 페이지
... daylight . The flower was pink , and appeared to him sky- blue by day , and without a trace of blue by candle - light . His friends assured him that the colour of the flower was not materially altered when viewed by artificial light ...
... daylight . The flower was pink , and appeared to him sky- blue by day , and without a trace of blue by candle - light . His friends assured him that the colour of the flower was not materially altered when viewed by artificial light ...
10 페이지
... daylight is used , the rings appear coloured , because this light being composed of rays of different wave - lengths , only a portion of the light will be destroyed , and so colour is produced . The colours pro- duced by diffraction ...
... daylight is used , the rings appear coloured , because this light being composed of rays of different wave - lengths , only a portion of the light will be destroyed , and so colour is produced . The colours pro- duced by diffraction ...
51 페이지
... daylight enters the eye from an orifice in a dark screen . When the orifice is covered by a coloured glass , the luminosity has the colour of the latter . " Helmholtz is of opinion that the phenomenon is due to reflection of light from ...
... daylight enters the eye from an orifice in a dark screen . When the orifice is covered by a coloured glass , the luminosity has the colour of the latter . " Helmholtz is of opinion that the phenomenon is due to reflection of light from ...
63 페이지
... daylight wanes becomes tinged with violet . full daylight is greenish blue . - A peacock's neck in 6. Violet . One of the best examples of a pure violet is the colour of the flower of some varieties of Lobelia , which is used so much in ...
... daylight wanes becomes tinged with violet . full daylight is greenish blue . - A peacock's neck in 6. Violet . One of the best examples of a pure violet is the colour of the flower of some varieties of Lobelia , which is used so much in ...
116 페이지
... daylight . This method of examination gives us definite facts which are useful in classifying the colour - blind . Many physicists say that these facts are useless because the colours are not pure , but , if two pieces of coloured wool ...
... daylight . This method of examination gives us definite facts which are useful in classifying the colour - blind . Many physicists say that these facts are useless because the colours are not pure , but , if two pieces of coloured wool ...
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absolute psycho-physical units after-image ANNA BLACKWELL blue-green bright brown candidate centre colour-blind person colour-perception coloured glass complementary colours contrast correctly crimson dark daylight defect definite colours Demy 8vo distinguish English Essays examination Fcap Fifth Edition four-unit Fourth Edition Frontispiece gaslight gray greenish Holmgren's Illustrations India junction large number LL.B LL.D luminosity Maps match mistakes modified unit neutral band neutral glasses normal-sighted person obtained olive-green orange painted physical series physical units Pilotage pink Plates Pocket Test points of difference Portrait Post 8vo Prof psycho-physical perception psycho-physical series psycho-physical units pure green purple red and green red end red rays retina rose Royal 8vo Sanskrit scotoma Second Edition seen shade simultaneous contrast Small crown 8vo spectroscope spectrum standard red test for colour-blindness theory Third Edition three-unit tion Translated Trinity House two-unit colour-blind violet violet end visual purple vols wools yellow and blue yellow-brown yellow-green Young-Helmholtz theory