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Proceedings Paper

Collimator design for extended sources
Author(s): Hans Philipp Annen; Ling Fu; Ralf Leutz
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Paper Abstract

Collimating light is a common task in optical design. The smaller the source, the simpler the optics required for collimation. Small sources cannot emit sufficient power for some demanding applications. Larger sources are required. The physical limits of collimation due to the conservation of ´etendue and skewness are discussed. Two systems are presented:a domed nonimaging Fresnel lens with toroidal primary focus and our "Umbrella" optics consisting of two free-form non-aximsymmetric mirrors.

Paper Details

Date Published: 20 August 2009
PDF: 7 pages
Proc. SPIE 7423, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VI, 74230D (20 August 2009); doi: 10.1117/12.827355
Show Author Affiliations
Hans Philipp Annen, Concentrator Optics GmbH (Germany)
Ling Fu, Concentrator Optics GmbH (Germany)
Ralf Leutz, Concentrator Optics GmbH (Germany)


Published in SPIE Proceedings Vol. 7423:
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VI
Roland Winston; Jeffrey M. Gordon, Editor(s)

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