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. See "CIE standard illuminants".
See also CIE 15 Colorimetry
See also ISO 11664-2:2007(E)/CIE S 014-2/E:2006 Colorimetry - Part 2: CIE Standard llluminants for Colorimetry