Optimization of single reflectors for extended sources

Florian R. Fournier; William J. Cassarly; Jannick P. Rolland

doi:10.1117/12.800377

24 September 2008 Optimization of single reflectors for extended sources

Florian R. Fournier, William J. Cassarly, Jannick P. Rolland

Proceedings Volume 7103, Illumination Optics; 71030I (2008) https://doi.org/10.1117/12.800377
Event: Optical Systems Design, 2008, Glasgow, Scotland, United Kingdom

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.

Citation Download Citation

Florian R. Fournier, William J. Cassarly, and Jannick P. Rolland "Optimization of single reflectors for extended sources", Proc. SPIE 7103, Illumination Optics, 71030I (24 September 2008); https://doi.org/10.1117/12.800377

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