Abstract

Experiments were carried out to provide an empirical basis for setting color standards for sunglasses. Nineteen individuals, ten with anomalous color vision, viewed traffic signals through a series of color filters. Limits on the apparent color shift for the amber and green signals as well as for D65 are presented on a 1931 CIE chromaticity diagram. Limits on the reduction in the apparent luminosity for each of the three signals are given in terms of the minimum transmittance of a lens for each signal.

© 1975 Optical Society of America

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