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Proceedings Paper

Nonimaging optics for nonuniform brightness distributions
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Paper Abstract

We present a general design method of nonimaging optics that obtains the highest possible concentration for a given absorber shape. This technique, which uses a complimentary edge ray to simplify the geometrical formulism, recovers familiar designs for flat phase space distributions, such as trumpets, and (theta) 1-(theta) 2 concentrators. This method is easy to use and handles diverse boundary conditions, such as reflection, satisfying total internal reflection or design within a material of graded index. Presented is a novel two-stage 2D solar collector with a fixed circular primary mirror and nonimaging secondary. This newly developed secondary gives a 25% improvement over conventional nonimaging concentrators.

Paper Details

Date Published: 21 August 1995
PDF: 6 pages
Proc. SPIE 2538, Nonimaging Optics: Maximum Efficiency Light Transfer III, (21 August 1995); doi: 10.1117/12.216988
Show Author Affiliations
David G. Jenkins, Univ. of Chicago (United States)
Roland Winston, Univ. of Chicago (United States)

Published in SPIE Proceedings Vol. 2538:
Nonimaging Optics: Maximum Efficiency Light Transfer III
Roland Winston, Editor(s)

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