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Stiles–Crawford effect

Stiles–Crawford effect of the first kind

directional effect

decrease in the brightness of a light stimulus with increasing eccentricity of the position of entry of a pencil of light through the pupil

Note 1 to entry: When the variation is in hue and saturation instead of in brightness, the effect is called "Stiles–Crawford effect of the second kind".

Note 2 to entry: The Stiles–Crawford effect is predominantly present for cone vision.

Note 3 to entry: This entry was numbered 845-02-15 in IEC 60050-845:1987.

Note 4 to entry: This entry was numbered 17-1268 and 17-327 in CIE S 017:2011.

Publication date: 2020-12
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