# 17-25-013

photometry

measurement of quantities referring to radiation as evaluated according to a given spectral luminous efficiency, e.g. V(λ) or V′(λ)

Note 1 to entry: The term "photometry" is sometimes used in a broader sense covering the science of optical radiation measurement (radiometry), but this use is deprecated.

Note 2 to entry: This entry was numbered 845-05-09 in IEC 60050-845:1987.

Note 3 to entry: This entry was numbered 17-914 in CIE S 017:2011.

Publication date: 2020-12