Colour-blindness and Colour-perceptionK. Paul, Trench, Trübner & Company, Limited, 1891 - 311 pages |
From inside the book
Results 1-5 of 79
Page 2
... glass . Szokalski , Purkinje , and Elie Wartman have also made classifications of the colour - blind . Wilson was the first to point out the dangers of colour- blindness , though very little attention was paid to his remarks . The only ...
... glass . Szokalski , Purkinje , and Elie Wartman have also made classifications of the colour - blind . Wilson was the first to point out the dangers of colour- blindness , though very little attention was paid to his remarks . The only ...
Page 7
... glass , a bright crimson band will be seen below the red , whilst the presence of rays above the violet is demonstrated by fluorescence and other phenomena . The most important point concerning the physical basis of colour is , that the ...
... glass , a bright crimson band will be seen below the red , whilst the presence of rays above the violet is demonstrated by fluorescence and other phenomena . The most important point concerning the physical basis of colour is , that the ...
Page 9
... glass be taken and through the two it will appear green . The piece of yellow glass may then be subjected to spectroscopic analysis : it will be found to transmit in addition to the yellow rays the orange , green , and some of the red ...
... glass be taken and through the two it will appear green . The piece of yellow glass may then be subjected to spectroscopic analysis : it will be found to transmit in addition to the yellow rays the orange , green , and some of the red ...
Page 10
... glass . Newton's rings , viewed by the monochromatic sodium light , appear alternately light and dark . Darkness will only be produced with monochro- matic light . When ordinary daylight is used , the rings appear coloured , because ...
... glass . Newton's rings , viewed by the monochromatic sodium light , appear alternately light and dark . Darkness will only be produced with monochro- matic light . When ordinary daylight is used , the rings appear coloured , because ...
Page 51
... glass , the luminosity has the colour of the latter . " Helmholtz is of opinion that the phenomenon is due to reflection of light from the posterior surface of the iris , but it seems to me that , if this explanation were a true one ...
... glass , the luminosity has the colour of the latter . " Helmholtz is of opinion that the phenomenon is due to reflection of light from the posterior surface of the iris , but it seems to me that , if this explanation were a true one ...
Other editions - View all
Common terms and phrases
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