标准编号：ISO/CIE 11664-1:2019
中文名称：比色法 第1部分：CIE标准比色仪
英文名称：Colorimetry — Part 1: CIE standard colorimetric observers
发布日期：2019-06
标准范围
This document specifies colour-matching functions for use in colorimetry. Two sets of colour-matching
functions are specified.
a) Colour-matching functions for the CIE 1931 standard colorimetric observer.
This set of colour-matching functions is representative of the colour-matching properties of
observers with normal colour vision for visual field sizes of angular subtense from about 1° to
about 4°, for vision at photopic levels of adaptation.
b) Colour-matching functions for the CIE 1964 standard colorimetric observer.
This set of colour-matching functions is representative of the colour-matching properties of
observers with normal colour vision for visual field sizes of angular subtense greater than about
4°, for vision at sufficiently high photopic levels and with spectral power distributions such that no
participation of the rod receptors of the retina is to be expected.
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