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.
environmental zone
area where specific activities take place or are planned and where specific requirements for the restriction of obtrusive light are recommended
Note 1 to entry: Environmental zones are indicated by a zone rating (E0 … E4) in accordance with CIE 150:2017,
Note 2 to entry: This entry was numbered 17-388 in CIE S 017:2011.