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¥¬&��*¯\$®\' [N��Retina of a living human eye(1) (David Williams, in Optics & Photonics News, vol.9, no.1, 1998)
900 cones/0.021mm2 = 42,800 comes/mm2
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30cm!
120 cones/deg!
iPhone 5sc: 1,136 x 640 (326ppi)!iPad Air: 2,048 x 1,536 (264ppi)!iPad mini retina: 2,048 x 1,536 (326ppi)!MacBook Pro 13’: 2,560 x 1,600 (227 ppi)�
L, M, S®\N�'�J� Joseph Carroll, Daniel C. Gray, Austin Roorda and David R. Williams, Optics & Photonics News, vol. 16, 36-41 (2005)
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Luminance ch. Opponent-color channel
Cone Stage
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