cie

17-23-023

equi-energy spectrum

equal energy spectrum

spectrum of radiation whose spectral distribution of a radiometric quantity as a function of wavelength is constant throughout the visible region

Note 1 to entry: The radiation of the equi-energy spectrum is sometimes regarded as an illuminant, in which case it is denoted by the symbol E.

Note 2 to entry: This entry was numbered 845-03-14 in IEC 60050-845:1987.

Note 3 to entry: This entry was numbered 17-393 and 17-390 in CIE S 017:2011.

Publication date: 2020-12
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