# 17-21-105

reflected luminance factor

βv,R

quotient of the reflected luminance at a point on a surface of a non-self-radiating medium in a given direction and that of the perfect reflecting diffuser identically irradiated and viewed

Note 1 to entry: The reflected luminance factor for a spectrally non-neutral surface depends upon the relative spectral distribution of the illumination. This quantity has to be specified.

Note 2 to entry: The reflected luminance factor has unit one.

Note 3 to entry: This entry was numbered 17-1063 in CIE S 017:2011.

Publication date: 2020-12