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Proceedings Paper

Evaluation of transient glare in the scotopic-mesopic range
Author(s): Elisa M. Colombo; Jose F. Barraza; Luis Issolio
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Paper Abstract

This paper proposes a quantitative method for evaluation of disability glare, considering a scotopic-mesopic range and transient glare. Subjects had to compare brightness of two uniform luminance fields sequentially displayed, one of which was presented under glare conditions. The observer reported which field was brighter with respect to one another. A forced choice paradigm using the method of constant stimuli was adopted to determine the luminance corresponding to the perceptual matching luminance. The results show a non linear effect of the glare illuminance on the matching luminance and a non significant dependence with the luminance reference. We propose an empirical equation to calculate the glare effect. Scattered light can explain the results considering simultaneous contrast.

Paper Details

Date Published: 19 July 1999
PDF: 2 pages
Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); doi: 10.1117/12.354855
Show Author Affiliations
Elisa M. Colombo, Univ. Nacional de Tucuman (Argentina)
Jose F. Barraza, Univ. Nacional de Tucuman (Argentina)
Luis Issolio, Univ. Nacional de Tucuman (Argentina)

Published in SPIE Proceedings Vol. 3749:
18th Congress of the International Commission for Optics
Alexander J. Glass; Joseph W. Goodman; Milton Chang; Arthur H. Guenther; Toshimitsu Asakura, Editor(s)

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