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Proceedings Paper

Optimization of single reflectors for extended sources
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Paper Abstract

Reflectors for prescribed intensity or illuminance distributions are commonly used in luminaires and automotive headlights. However, their design has remained a challenge. Although reflector shapes are well known for a point source, the point source approximation leads to significant errors in the output distribution with extended and nonuniform source distributions. In practice, source non-idealities usually require the use of automated and manual optimization in the design process. We propose a hybrid optimization scheme that generates reflector shapes for rotationally symmetric systems and an arbitrary source luminance distribution. This method is based on an extension of the traditional algorithm for a point source, and uses a combination of an iterative algorithm and an optimization algorithm. Several case studies are presented.

Paper Details

Date Published: 24 September 2008
PDF: 10 pages
Proc. SPIE 7103, Illumination Optics, 71030I (24 September 2008); doi: 10.1117/12.800377
Show Author Affiliations
Florian R. Fournier, College of Optics and Photonics, Univ. of Central Florida (United States)
William J. Cassarly, Optical Research Associates (United States)
Jannick P. Rolland, College of Optics and Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 7103:
Illumination Optics
Tina E. Kidger; Stuart R. David, Editor(s)

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