Effect of brief exposure to glare on brightness perception in the scotopic-mesopic range

Reports a study of the effect of disability glare in the scotopic-mesopic range when there is brief exposure to glare. The study is an attempt to quantify the effect of glare encountered under night driving conditions, eg, from oncoming headlights and overhead lights. Subjects compared the brightnes...

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Bibliographic Details
Published in:International journal of lighting research and technology 2000-01, Vol.32 (2), p.65-69
Main Authors: Colombo, E, Barraza |h J., Issolio |h L.
Format: Article
Language:English
Online Access:Get full text
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Summary:Reports a study of the effect of disability glare in the scotopic-mesopic range when there is brief exposure to glare. The study is an attempt to quantify the effect of glare encountered under night driving conditions, eg, from oncoming headlights and overhead lights. Subjects compared the brightness of two uniform luminance fields displayed sequentially; one of them was presented under glare conditions. The observers reported which field was brighter. A forced-choice paradigm using the method of constant stimuli was used to determine the luminance corresponding to the perceptual matching luminance. Results showed a nonlinear relation of the glare illuminance to the matching luminance and a non-significant dependence on the luminance reference. The relation between matching luminance and reference luminance could be an easy way to measure the effect of glare. (Original abstract - amended)
ISSN:1365-7828