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Proceedings Paper

Narcissus of diffrative optical surfaces
Author(s): Jonathan B. Cohen
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Paper Abstract

Narcissus is usually approximated by means of a paraxial ray trace through the optical system in the ordinary direction of light travel. An accurate calculation involves tracing real rays backwards from the detector to the reflecting surface, and back to the detector after reflection. It is shown that the diffractive order of maximum efficiency for a diffractive optical surface is different for transmitted and reflected radiation. This precludes the use of the paraxial approximation for calculating the effect of narcissus. The real ray method of calculation must be used with specific orders of diffraction based on their efficiencies.

Paper Details

Date Published: 6 June 1995
PDF: 6 pages
Proc. SPIE 2426, 9th Meeting on Optical Engineering in Israel, (6 June 1995); doi: 10.1117/12.211214
Show Author Affiliations
Jonathan B. Cohen, EL-OP Electrooptics Industries Ltd. (Israel)


Published in SPIE Proceedings Vol. 2426:
9th Meeting on Optical Engineering in Israel
Itzhak Shladov; Yitzhak Wiessman; Natan Kopeika, Editor(s)

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