Edridge-Green, Frederick William, 1863-, University of Leeds. Library · London : Kegan Paul, Trench, Trübner · leaf 112
92 COLOUR-BLINDNESS AND COLOUR-PERCEPTION. Then spectral red will have lost seven-eighths of its luminosity, only one-eighth of the retinal stimulation perceived by the normal-sighted taking place. Lut … Fig. 13 Is the diagram representing the three primary colour-sensation p of the Youiig- Helmboltz theory. Fig. 14 is a luminosity curve for a normal sighted person, constructed from the above diagram. Fig. 15 is a luminosity curve for a red-blind, constructed from the above diagram. spectral green…
Colour vision defects · Colour perception
Internet Archive · University of Leeds Library · Public domain (published before 1931). Free to use for anything.