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chromaticity diagram

   Also found in: Dictionary/thesaurus, Medical 0.01 sec.
chromaticity diagram [‚krō·mə′tis·əd·ē dī·ə‚gram]
(optics)
A triangular graph for specifying colors, whose ordinate is theychromaticity coordinate and whose abscissa is thexchromaticity coordinate; the apexes of the triangle represent primary colors. Also known as chromatic diagram.


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The first chapter is devoted to fundamentals of light-emitting diodes, the perception of vision by the human eye, methods used in conjunction with the chromaticity diagram, and associated international standards in terms of color temperatures and color rendering index.
There has been concern about possible color confusion among red, orange, and yellow sign colors, especially at nighttime, since the FHWA specifications for these three colors are relatively closely spaced in the International Commission on Illumination (Commission Internationale de l'Eclairage-CIE) chromaticity diagram.
32 on the CIE (Commission Internationale de l'Eclairage) 1931 chromaticity diagram.
 
 
 
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