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Proceedings Paper

Optimization of parameterized lightpipes
Author(s): R. John Koshel
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Paper Abstract

Parameterization via the bend locus curve allows optimization of single-spherical-bend lightpipes. It takes into account the bend radii, the bend ratio, allowable volume, thickness, and other terms. Parameterization of the lightpipe allows the inclusion of a constrained optimizer to maximize performance of the lightpipe. The simplex method is used for optimization. The standard and optimal simplex methods are used to maximize the standard Lambertian transmission of the lightpipe. A second case presents analogous results when the ray-sample weighted, peak-to-average irradiance uniformity is included with the static Lambertian transmission. These results are compared to a study of the constrained merit space. Results show that both optimizers can locate the optimal solution, but the optimal simplex method accomplishes such with a reduced number of ray-trace evaluations.

Paper Details

Date Published: 19 July 2006
PDF: 12 pages
Proc. SPIE 6342, International Optical Design Conference 2006, 63420P (19 July 2006); doi: 10.1117/12.692255
Show Author Affiliations
R. John Koshel, Lambda Research Corp. (United States)
College of Optical Sciences, Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 6342:
International Optical Design Conference 2006
G. Groot Gregory; Joseph M. Howard; R. John Koshel, Editor(s)

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