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- W2012709304 abstract "VISUAL purple extracted from frog retinae which is embedded in solid gelatine films (‘artificial retina’) reproduces on exposure to coloured light various phenomena of scotopic and photopic vision1,2,3. It is liable to ‘general bleaching’ or to ‘colour selectivity’ by photochemical processes. Both can be recorded by plotting the decrease of extinction against wave-length. If general bleaching occurs, the maximum of the graph (namely, at 530 mμ in the artificial retina) is independent of the spectral composition of the exposing light. In colour selectivity the maximum of the ‘colour graph’ coincides with the dominant wave-length of the coloured light for a normal trichromat. This forms the basis of an objective colorimetry3." @default.
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- W2012709304 date "1940-07-01" @default.
- W2012709304 modified "2023-09-27" @default.
- W2012709304 title "Vision and the Photochemistry of Visual Purple" @default.
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- W2012709304 doi "https://doi.org/10.1038/146031a0" @default.
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