# 17-26-071

exposure duration

duration of exposure

texp

time difference between the end time, te, and the start time, ts, of an optical radiation exposure

Note 1 to entry: For a single pulse, the exposure duration is the duration between the half-peak power point of the leading edge and the corresponding point on the trailing edge. For a train of pulses (or subsections of a train of pulses), the exposure duration is the duration between the first half-peak power point of the leading pulse and the last half-peak power point of the trailing pulse.

Note 2 to entry: The exposure duration is expressed in seconds (s).

Note 3 to entry: This entry was numbered 17-415 and 17-355 in CIE S 017:2011.

Publication date: 2020-12