Skip to main content
cie

e-ILV

The e-ILV provides free access to all the terms and definitions contained in the international standard CIE S 017:2020 ILV: International Lighting Vocabulary, 2nd edition.

To search for another term please use  "Back to the list" to return to the main page or the e-ILV.

For the complete set of terms and definitions CIE S 017:2020 can be purchased from the CIE Webshop. Members of a CIE National Committee or Associate National Committee have access to a 66,7 % discount on the purchase price of the standard.

For advice on CIE Publications contact helpdesk@cie.co.at. Note the CIE Helpdesk cannot assist with technical enquiries.

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
Copyright © CIE 2020. All Rights Reserverd.