EN ISO/CIE 11664-1:2019

Colorimetry - Part 1: CIE standard colorimetric observers (ISO/CIE 11664-1:2019)

Publication date:   Dec 16, 2019

General information

60.60 Standard published   Jul 17, 2019

CEN

CEN/TC 139 Paints and varnishes

European Norm

17.180.20   Colours and measurement of light

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Scope

This document specifies colour-matching functions for use in colorimetry. Two sets of colour-matching functions are specified.
— 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.
— 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.

Life cycle

PREVIOUSLY

Replaces
EN ISO 11664-1:2011

NOW

PUBLISHED
EN ISO/CIE 11664-1:2019
60.60 Standard published
Jul 17, 2019