reflected radiance factor
quotient of the reflected radiance 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: In general, the reflected radiance factor from a surface does not depend upon the relative spectral distribution of the irradiation. This is not the case for a photoluminescent surface, where it is necessary to specify this quantity.
Note 2 to entry: The reflected radiance factor has unit one.
Note 3 to entry: This entry was numbered 17-1064 in CIE S 017:2011.