Colour vision, a discussion of the leading phenomena and their physical laws (1922)
Peddie, William · London, Arnold · leaf 200
cos27r/ —3*125£~sin2;7r/. AFTER IMAGES AND CONTRAST COLOURS 185 The y and z curves differ little. If their average be considered,the diagram illustrates Hamakers succession of primary,secondary, tertiary, and quaternary recurrent images (§ 90), 25 K\ -\\ \ \jc /fy^r^ ■-\ \-J vv X-,-.. ^^p^ ^^--^, ^… … Fig. 29.—Oscillating After Images with Initial White Sensation. In Fig. 29 the curves are 180 COLOUR VISION The curves in Fig. 30 show ordinates in proportion to X = £ +.- •^cos •Ini y = 2e- * + f- ■*sin •2n s = = 3^ ~ — £~ ^cos •2nt If the ui)per dotted line corresponds to unit sensation…
Color
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