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.


additivity law of von Krefeld

law stating that effective doses can be added to a total effective dose, even if the dose response curves for different wavebands are different

Note 1 to entry: This means at the same time that no conductive (i.e. catalytic) or hindering (i.e. antagonistic) effects occur.

Note 2 to entry: This entry was numbered 17-25 in CIE S 017:2011.

Publication date: 2020-12
Copyright © CIE 2020. All Rights Reserverd.