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Illuminants for Colour Matching
Author(s) -
McLAREN K.
Publication year - 1967
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1967.tb02738.x
Subject(s) - standard illuminant , colorimetry , matching (statistics) , artificial intelligence , mathematics , optics , computer science , computer vision , statistics , physics
CIE Illuminant C, although primarily established for colorimetry, was adopted as the basis for colour‐matching lamps in both the U.K. (1941) and the U.S.A. (1937). In the U.S.A. it was soon replaced because its colour temperature was too low (6740°K), the replacement eventually being a source having the Abbot‐Gibson 7400°K curve. In the U.K. the recent British Standard for colour‐matching lamps ( BS 950:1967) is based on D 6500, a curve destined to replace Illuminant C as the CIE colorimetric standard for daylight. The requirements of BS 950:1967 have been met by a single source, a fluorescent tube, the cheapness and ease of installation of which permit it to be extremely widely used for colour appraisal as well as for colour matching.