bril

Definitions

A unit of luminance equal to tfrac 1 10⁷π candela per square metre.

Equivalents

Examples

“In the experiments, the brightness in brils was measured as a function of luminance for various adaptation levels of the eye.”

“Here, Q is brightness (or perceived luminance), measured in brils.”

“Tumblin's model⟳ aims to match⟳ a perceived quality known as brightness, measured in brils, so that the real world brightness and display brightness can be equated.”

“many of the old units-such as the nox, phot, glim, skot, and scot (identical), as well as the bril and brill (different)—are so antiquated as to be of interest⟳ only to the historian.”

CEFR level