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.


LED junction

transition layer between semiconductor regions of different electrical properties, or between a semiconductor and a layer of different type, of an LED

[SOURCE: IEC 60050-521:2002, 521-02-72, modified – Term qualified by "LED", and "being characterized by a potential barrier impeding the movement of charge carriers from one region to the other" replaced by "of an LED" in the definition.]

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