Researches in colour vision and the trichromatic theory (1913)
Abney, William de Wiveleslie, Sir, 1843-1920 · London : Longmans, Green · leaf 48
RESEARCHES IN COLOUR VISION 28 Benhams Top. One of the objects of Bidwell’s investigations was to account for the colour phenomena which are pro¬ duced in Benham’s spectrum top. The figure below gives the idea of the … the light. The maker of the top says that when the top is rotated Fig. 9. in the direction of the arrow the outside set of lines will appear red and the inside one dark blue, whilst the intermediate lines will show a green colour. It will he noticed that the rotation gives black first, then the…
Color Perception · Color blindness · Color vision
Internet Archive · Wellcome Library · Public domain (published before 1931). Free to use for anything.
