ČSN EN ISO/CIE 11664-1 (011720)

Colorimetry - Part 1: CIE standard colorimetric observers

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STANDARD published on 1.1.2020


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The information about the standard:

Designation standards: ČSN EN ISO/CIE 11664-1
Classification mark: 011720
Catalog number: 508548
Publication date standards: 1.1.2020
SKU: NS-979521
The number of pages: 48
Approximate weight : 144 g (0.32 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

The category - similar standards:

Colours and measurement of light

Annotation of standard text ČSN EN ISO/CIE 11664-1 (011720):

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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