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Proceedings Paper

Advanced nonrotationally symmetric reflector for efficient and uniform illumination of rectangular apertures
Author(s): John C. Bortz; Narkis E. Shatz; Roland Winston
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Paper Abstract

A requirement for a uniformly illuminated rectangular aperture is common in optical design, particularly for projection applications. We have previously presented an all-reflective design that provides high flux-transfer efficiency from a cylindrical source to a 1.5:1-aspect-ratio rectangular target, with target etendue equal to that of the source. That design used a numerically optimized nonrotationally symmetric reflector having a star-like cross-section combined with a light tunnel having a constant rectangular cross-section. In this paper we present a more advanced design in which the constant-cross-section light tunnel is replaced with one having a numerically optimized cross-sectional geometry that varies as a function of position along its length.

Paper Details

Date Published: 6 October 1999
PDF: 10 pages
Proc. SPIE 3781, Nonimaging Optics: Maximum Efficiency Light Transfer V, (6 October 1999); doi: 10.1117/12.368242
Show Author Affiliations
John C. Bortz, Science Applications International Corp. (United States)
Narkis E. Shatz, Science Applications International Corp. (United States)
Roland Winston, Univ. of Chicago (United States)

Published in SPIE Proceedings Vol. 3781:
Nonimaging Optics: Maximum Efficiency Light Transfer V
Roland Winston, Editor(s)

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