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Area Lighting / Colorimetry

IEV ref845-03-28

Symbol
(X Y Z)

en
CIE 1931 standard colorimetric system
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).


[SOURCE: CIE Publication No. 15]


fr
système de référence сolorimétrique CIE 1931, m
système permettant l'évaluation des composantes trichromatiques d'une répartition spectrale d'énergie quelconque en utilisant l'ensemble des stimulus de couleur de référence [X], [Y], [Z] et les trois fonctions colorimétriques CIE x ¯ ( λ ), y ¯ ( λ ), z ¯ ( λ ) MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiqadIhagaqeamaabmaabaGaeq4UdWgacaGLOaGaayzkaaGaaiilaiqadMhagaqeamaabmaabaGaeq4UdWgacaGLOaGaayzkaaGaaiilaiqadQhagaqeamaabmaabaGaeq4UdWgacaGLOaGaayzkaaaaaa@43A9@ adoptés par la CIE en 1931

Note 1 – y ¯ ( λ ) MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiqadMhagaqeamaabmaabaGaeq4UdWgacaGLOaGaayzkaaaaaa@39A3@ est identique à V(λ) et, par suite, les composantes trichromatique Y sont proportionnelles aux luminances.

Note 2 – Ce système de référence colorimétrique est applicable aux champs d'observation en vision centrale d'étendue angulaire comprise entre 1° environ et 4° environ (0,017 et 0,07 rad).


[SOURCE: Publication CIE N° 15]


ar
المواصفة القياسية لنظام الألوان للجنة الإنارة الدولية

de
CIE-Normvalenzsystem 1931, n

es
sistema colorimétrico patrón CIE 1931

fi
CIE:n vuoden 1931 värinmittauksen standardijärjestelmä
xyz-järjestelmä

it
sistema colorimetrico CIE 1931

ko
시아이이 1931 표준 표색계

ja
XYZ等式系

no
nb CIE 1931 standard fargemålingssystem

nn CIE 1931 standard fargemålingssystem

pl
układ kolorymetryczny CIE 1931 normalny

pt
sistema de referência colorimétrico CIE 1931

sv
CIE 1931 standardsystem för kolorimetri

Publication date: 1987
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