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CIE Standard Illuminants and Sources

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Synonyms

CIE standard illuminant A; CIE standard illuminant D65; CIE standard source A

Definitions

CIE Standard Illuminants

Illuminants A and D65 defined by the CIE in terms of relative spectral power distributions [1].

Note 1: These illuminants are intended to represent:

  • A: Planckian radiation at a temperature of about 2,856 K

  • D65: The relative spectral power distribution representing a phase of daylight with a correlated color temperature of approximately 6,500 K (called also “nominal correlated color temperature of the daylight illuminant”)

Note 2: Illuminants B and C and other D illuminants, previously denoted as “standard illuminants,” should now be termed “CIE illuminants.”

CIE Standard Sources

Artificial sources specified by the CIE whose radiation approximate CIE standard illuminants.

Note: CIE sources are artificial sources that represent CIE illuminants.

Overview

As shown already in the section Definitions, one has to distinguish between illuminants and sources: The term...

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References

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  10. CIE: Methods for re-defining CIE D illuminants. CIE 204, 2013 (2013)

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Correspondence to János Schanda .

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Schanda, J. (2015). CIE Standard Illuminants and Sources. In: Luo, R. (eds) Encyclopedia of Color Science and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27851-8_324-1

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  • DOI: https://doi.org/10.1007/978-3-642-27851-8_324-1

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Online ISBN: 978-3-642-27851-8

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