| Definition: | wavelength of the monochromatic stimulus that, when additively mixed in suitable proportions with the specified achromatic stimulus, matches the colour stimulus considered in the CIE 1931 x, y chromaticity diagram Note 1 to entry: In the case of purple stimuli, the dominant wavelength is replaced by the complementary wavelength. Note 2 to entry: The dominant wavelength is expressed in nanometre (nm). Note 3 to entry: This entry was numbered 845-03-44 in IEC 60050-845:1987.
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