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.
occulting light
rhythmic light in which every time interval of darkness (occultation) is of the same duration, and the total duration of light in a period is clearly longer than the total duration of darkness
Note 1 to entry: This entry was numbered 845-11-13 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-837 in CIE S 017:2011.