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.


rise time, <of a detector>

time required for a detector output to rise from a stated low percentage to a stated high percentage of the maximum value when a steady input is instantaneously applied

Note 1 to entry: A value of 10 % is usually considered to be the low percentage value, whereas a value of 90 % is usually considered to be the high percentage value.

Note 2 to entry: The rise time is expressed in seconds (s).

Note 3 to entry: This entry was numbered 845-05-60 in IEC 60050-845:1987.

Note 4 to entry: This entry was numbered 17-1112 in CIE S 017:2011.

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