Edridge-Green, F. W. (Frederick William), 1863-1953, Kegan Paul, Trench, Trubner & Co., publisher · London : Kegan Paul, Trench, Trübner & Co., Ltd. · leaf 114
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. But … Fig. 13 is the diagram representing the three primary colour-sensations of the Young- Helmholtz 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…
Color blindness · Color Vision Defects · Color Perception
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Color-blindness [electronic resource] : its dangers and its detection (1879)](https://img.insideoutlibrary.com/img/200/ia-b20398980-64-0.webp)
