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 Note the CIE Helpdesk cannot assist with technical enquiries.



optical device that modifies a beam of optical radiation to produce a beam of unpolarized radiation irrespective of the state of polarization of the incident radiation

Note 1 to entry: No simple and completely satisfactory way of depolarizing a beam of radiation is known. The methods employed usually produce a large variety of polarization states with respect to time, wavelength or the aperture of the beam. Devices functioning on this principle are usually known as pseudo-depolarizers.

Note 2 to entry: This entry was numbered 17-292 in CIE S 017:2011.

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