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purple boundary
line in a chromaticity diagram, or the plane surface in a tristimulus space, that represents additive mixtures of monochromatic stimuli of wavelengths approximately 380 nm and 780 nm
Note 1 to entry: This entry was numbered 845-03-39 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-1004 in CIE S 017:2011.