IEVref:845-03-28ID:
Language:enStatus: Obsolete
Term: CIE 1931 standard colorimetric system
Synonym1:
Synonym2:
Synonym3:
Symbol: (X Y Z)
Definition: a system for determining the tristimulus values of any spectral power distribution using the set of reference colour stimuli [X], [Y], [Z] and the three CIE colour-matching functions x ¯ ( λ ), y ¯ ( λ ), z ¯ ( λ ) MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiqadIhagaqeamaabmaabaGaeq4UdWgacaGLOaGaayzkaaGaaiilaiqadMhagaqeamaabmaabaGaeq4UdWgacaGLOaGaayzkaaGaaiilaiqadQhagaqeamaabmaabaGaeq4UdWgacaGLOaGaayzkaaaaaa@43A9@ adopted by the CIE in 1931

NOTE 1 – y ¯ ( λ ) MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiqadMhagaqeamaabmaabaGaeq4UdWgacaGLOaGaayzkaaaaaa@39A3@ is identical to V(λ) and hence the tristimulus values Y are proportional to luminances.

NOTE 2 – This standard colorimetric system is applicable to centrally-viewed fields of angular subtense between about 1° and about 4° (0.017 and 0.07 rad).


Publication date:1987
SourceCIE Publication No. 15
Replaces:
Internal notes:2017-06-02: Cleanup - Remove Attached Image 845-03-281.gif

2017-06-02: Cleanup - Remove Attached Image 845-03-282.gif
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