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.
adaptation
process by which the state of the visual system is modified by previous and present exposure to stimuli that can have various luminance values, spectral distributions and angular subtenses
Note 1 to entry: Adaptation to specific spatial frequencies, orientations, sizes, etc. is recognized as being included in this definition.
Note 2 to entry: This entry was numbered 845-02-07 in IEC 60050-845:1987.
Note 3 to entry: This entry was numbered 17-18 in CIE S 017:2011.