CIE standard illuminant A is intended to represent typical, domestic, tungsten-filament lighting.
Its relative spectral power distribution is that of a Planckian radiator at a temperature of approximately 2856 K.
Illuminant A should be used in all applications of colorimetry involving the use of incandescent lighting,
unless there are specific reasons for using a different illuminant.
CIE standard illuminant A is intended to represent typical, domestic, tungsten-filament lighting. Its relative spectral power distribution is that of a Planckian radiator at a temperature of approximately 2856 K.
Illuminant A should be used in all applications of colorimetry involving the use of incandescent lighting, unless there are specific reasons for using a different illuminant.