Abstract
Stiles published in 1937 that the hue of a monochromatic beam of light depends upon its angle of incidence on the retina. In the early 60’s the effect has been remeasured by Enoch and Stiles, including saturation-shifts.Walraven and Bouman proposed in 1960 an explanation of the chromatic SC-effect by considering selfscreening of the photopic visual pigments, and by attributing a difference between the directional sensitivity of the S-cone system with respect to the L- and M-cone systems. It is now suggested that this larger directional sensitivity of the S-system might be attributed to the larger cross-sectional diameter of the S-cones with respect to L- and M-cones.Huge hue shifts might occur in anomalous colour vision. These hue shifts can be explained in the same way as for normal colour vision, provided the appropriate pigment densities are chosen, together with a shift of the absorption curve of the M-pigment along the wavelength axis in the case of deuteranomaly.
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© 1997 Springer Science+Business Media Dordrecht
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Walraven, P.L. (1997). Directional Sensitivity of the Cone Systems in Normal and Anomalous Color Vision. In: Lakshminarayanan, V. (eds) Basic and Clinical Applications of Vision Science. Documenta Ophthalmologica Proceedings Series, vol 60. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5698-1_8
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DOI: https://doi.org/10.1007/978-94-011-5698-1_8
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