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daylight illuminant
D illuminant
illuminant having the same or nearly the same relative spectral distribution of the radiant flux as a phase of daylight
Note 1 to entry: This entry was numbered 845-03-11 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-281 and 17-275 in CIE S 017:2011.