A Simplified Index for Color of Illuminants
A new improved unit for the trichromatic measurement and description of illuminants is presented. Described are: methods of derivation; relation to Kelvin color temperature scale; application to color film, filters and light sources; and a three-color instrument for measurement of light sources using this new Spectra Index unit.
- Print ISSN
- 0898-042X
- Published
- 1951-04
- Content type
- Original Research
- DOI
- 10.5594/J06333
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