intensity

views updated

intensity A nontechnical synonym for both luminance and brightness. Luminance is the measured light intensity reflected or emitted by a surface in a given direction per unit of apparent area. Brightness is a psycho-physiological attribute of visual perception in which a source appears to emit or reflect more or less light.

More From encyclopedia.com

About this article

intensity

Updated About encyclopedia.com content Print Article

Related Content

NEARBY TERMS

intensity