ISO/CIE 11664-2:2022

International Standard   Current Edition
· Approved on 31 August 2022 ·

Colorimetry — Part 2: CIE standard illuminants

ISO/CIE 11664-2:2022 Files

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Current Edition

ISO/CIE 11664-2:2022 Scope

This document defines three CIE standard illuminants for use in colorimetry: CIE standard illuminant A for the representation of typical tungsten-filament lighting, CIE standard illuminant D65 for the representation of average daylight having a correlated colour temperature of approximately 6 500 K and CIE standard illuminant D50 for the representation of daylight with a correlated colour temperature of approximately 5 000 K. Values of the relative spectral power distribution of the three illuminants are included in this document.

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