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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 17, Iss. 22 — Nov. 15, 1978
  • pp: 3598–3603

Diffraction gratings for color filtering in the zero diffraction order

K. Knop  »View Author Affiliations


Applied Optics, Vol. 17, Issue 22, pp. 3598-3603 (1978)
http://dx.doi.org/10.1364/AO.17.003598


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Abstract

Phase gratings with deep rectangular grooves have been successfully used in the zero diffraction order as transmission color filters. They form the basis of the ZOD microimage system for recording color images as surface-relief structures. ZOD images can be inexpensively replicated by hot embossing in a transparent sheet of plastic and read-out using conventional slide projectors or microfilm viewers. In this paper we use rigorous diffraction theory to derive optimum grating parameters for gratings with periods d < 2 μm to produce the three subtractive primary colors, cyan, magenta, and yellow, and also green. The theoretical results are in good agreement with the experiment.

© 1978 Optical Society of America

History
Original Manuscript: April 10, 1978
Published: November 15, 1978

Citation
K. Knop, "Diffraction gratings for color filtering in the zero diffraction order," Appl. Opt. 17, 3598-3603 (1978)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-17-22-3598


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References

  1. K. Knop, Opt. Commun. 18, 298 (1976). [CrossRef]
  2. K. Knop, “Diffractive Subtractive Color Filtering Technique,” U.S. Patent3,957,354, issued 18May1976.
  3. M. T. Gale, J. Kane, K. Knop, J. Appl. Photogr. Eng. 4, 41 (1978).
  4. K. Knop, “Simplified and Improved Diffractive Subtractive Color Filtering Technique,” U.S. Patent4,057,326, issued 8November1977.
  5. K. Knop, “Rigorous Diffraction Theory for Dielectric Gratings with Deep Rectangular Grooves,” J. Opt. Soc. Am., Sept.1978 issue, in press. [CrossRef]
  6. M. Born, E. Wolf, Principles of Optics (Pergamon, London, 1975), Chap. 8.6.
  7. European Standard C.E.I. 13: 67 (1967).
  8. R. W. G. Hunt, The Reproduction of Colour (Fountain Press, London, 1975).

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