Visibility of Exit Signs in Clear and Smoky Conditions.
Visibility of Exit Signs in Clear and Smoky Conditions.
(19112 K)
Collins, B. L.; Dahir, M. S.; Madrzykowski, D.
Journal of the Illuminating Engineering Society, Vol.
21, No. 1, 69-84, Winter 1992.
Keywords:
exit signs; visibility; standards; luminescence
Abstract:
In the present study, the visibility of several types of
internally lit exit signs was assessed under both clear
and smoky conditions. In the evaluation both
photometric and psychophysical measures were taken.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899