The e-ILV provides free access to all the terms and definitions contained in the international standard CIE S 017:2020 ILV: International Lighting Vocabulary, 2nd edition.
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colour stimulus
visible radiation entering the eye and producing a sensation of either chromatic colour or achromatic colour
Note 1 to entry: This entry was numbered 845-03-02 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-229 in CIE S 017:2011.