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Applied Optics

Applied Optics


  • Vol. 10, Iss. 5 — May. 1, 1971
  • pp: 1108–1113

Optimum Phosphor Blends for Fluorescent Lamps

W. Walter  »View Author Affiliations

Applied Optics, Vol. 10, Issue 5, pp. 1108-1113 (1971)

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A theoretical study has been made of the optical properties of two-component phosphor blends for fluorescent lamps. The component spectral energy distributions were taken to be gaussian when the number of emitted photons is plotted vs energy. Mercury lines were added. The widths, positions, and proportions of the components were systematically varied in such a way as to keep the blend chromaticity coordinates constant. Luminosity and color-rendering indices were computed. Optimum blends for daylight, cool white, white, and warm white lamps were determined in terms of a quality index, which measures the combination of brightness and color rendition.

© 1971 Optical Society of America

Original Manuscript: October 30, 1970
Published: May 1, 1971

W. Walter, "Optimum Phosphor Blends for Fluorescent Lamps," Appl. Opt. 10, 1108-1113 (1971)

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  1. H. F. Ivey, J. Opt. Soc. Amer. 53, 1185 (1963). [CrossRef]
  2. O. J. Sovers, L. J. Bodi, J. Opt. Soc. Amer. 55, 1643 (1965). [CrossRef]
  3. Private communication.
  4. J. L. Ouweltjes, Die Farbe 9, 207 (1960).
  5. Amer. Nat. Standards Inst. C78.376a (1966). The warm white coordinates given are newly proposed and have not yet been officially accepted.
  6. D. Curie, Luminescence in Crystals (Methuen, London, 1963), p. 44; B. DiBartolo, Optical Interactions in Solids (Wiley, New York, 1968), p. 421.
  7. E. Ejder, J. Opt. Soc. Amer. 59, 223 (1969). [CrossRef]
  8. K. H. Butler, J. E. Eby, Sylvania Engineering Report E-753 (1966, unpublished).
  9. Committee on Colorimetry of the Optical Society of America, The Science of Color (Optical Society of America, Wash., D.C., 1963).
  10. The indices 1 and 2 refer to the two components.
  11. D. Nickerson, C. W. Jerome, Illum. Eng. 60, 262 (1965).
  12. Kindly given to us by C. W. Jerome.

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