Influences of variation in lenticular and macular pigmentation on dichromatic neutral points

  • Protanopie, deuteranopic and tritanopic neutral points were computed by determining the wavelength of light that produced the same quantal-catch ratio in the photopigments as that produced by a broad-band light of specified color temperature (range: 2 800—6 600 K). The Vos-Walraven primaries were used as photopigment absorption spectra that were screened by varying densities of ocular (0.5—2.5 at 400 nm) and macular (0.0—1.0 at 460 nm) pigmentation. The computations were carried out in 1 nm steps for the wavelength range of 380 to 720 nm. Most of the empirically determined mean, neutral-point loci in the literature were predicted from these computations to within 1—2nm when average ocular and macular pigment densities were used. The neutral-point range associated with the extreme values of the prereceptoral screening pigments was up to 25 nm for protanopes and deuteranopes and up to 13 nm for tritanopes.

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Author:Reinhold KlieglORCiDGND, Vicki J. Volbrecht, John S. Werner
Series (Serial Number):Postprints der Universität Potsdam : Humanwissenschaftliche Reihe (paper 170)
Document Type:Postprint
Year of Completion:1984
Publishing Institution:Universität Potsdam
Release Date:2010/01/26
Source:Colour vision deficiencies VII : proceedings of the seventh symposium of the International Research Group on Colour Vision Deficiencies held at Centre Médical Universitaire, Geneva, Switzerland, 23-25 June 1983 / Ed. by G. Verriest. - The Hague [u.a.] : Junk, 1984, S. 155-163, ISBN 90-6193-735-3
Organizational units:Humanwissenschaftliche Fakultät / Institut für Psychologie
Dewey Decimal Classification:1 Philosophie und Psychologie / 15 Psychologie / 150 Psychologie
Licence (German):License LogoKeine Nutzungslizenz vergeben - es gilt das deutsche Urheberrecht