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Proceedings Paper

Design of efficient freeform lenses for mass-market illumination applications using hybrid algorithms
Author(s): Axel Bäuerle; Rolf Wester; Claus Schnitzler; Peter Loosen
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Paper Abstract

We report on the development and experimental analysis of novel freeform polymer lenses for the uniform illumination of a target area using high-brightness LED. In a first step, the LED module was centered over the illuminated area and the two faces of a freeform lens were designed for homogeneous and efficient light distribution. In a second step, the system was extended for an off-axis target, the overall size was reduced and structures for automated alignment with respect to the LED were included. Photometric analyses were used for each system and were found to be in good agreement with simulations.

Paper Details

Date Published: 12 August 2010
PDF: 10 pages
Proc. SPIE 7788, Polymer Optics Design, Fabrication, and Materials, 778807 (12 August 2010); doi: 10.1117/12.865365
Show Author Affiliations
Axel Bäuerle, RWTH Aachen Univ. (Germany)
Fraunhofer Institute for Laser Technology (Germany)
Rolf Wester, Fraunhofer Institute for Laser Technology (Germany)
Claus Schnitzler, RWTH Aachen Univ. (Germany)
Peter Loosen, RWTH Aachen Univ. (Germany)
Fraunhofer Institute for Laser Technology (Germany)


Published in SPIE Proceedings Vol. 7788:
Polymer Optics Design, Fabrication, and Materials
David H. Krevor; William S. Beich, Editor(s)

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