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prEN ISO/CIE 11664-2

Colorimetry - Part 2: CIE standard illuminants (ISO/CIE DIS 11664-2.2:2021)

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ISO/CIE DIS 11664-2.2; prEN ISO/CIE 11664-2
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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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