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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 35, Iss. 10 — Oct. 1, 1945
  • pp: 670–670

Colorimetric Specifications of Wratten Light Filters

DAVID L. MACADAM  »View Author Affiliations


JOSA, Vol. 35, Issue 10, pp. 670-670 (1945)
http://dx.doi.org/10.1364/JOSA.35.000670


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Abstract

Colorimetric specifications are given for Wratten light filters, including the tristimulus values, trichromatic coordinates, dominant wave-lengths, purity, and luminous transmittance for ICI illuminants A and C and for an artificial daylight produced by the use of a Wratten filter. These data are based on the spectral transmittance values published in the seventeenth edition (1944) of the booklet entitled “Wratten Light Filters.”Wave-lengths for thirty selected ordinates and for supplementary ordinates are given for colorimetric computations involving the artificial daylight source, which consists of a tungsten filament lamp operated at a color temperature of 2360°K, the light from which is passed through a Wratten filter No. 78.

Citation
DAVID L. MACADAM, "Colorimetric Specifications of Wratten Light Filters," J. Opt. Soc. Am. 35, 670-670 (1945)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-35-10-670

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