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Proceedings Paper

Irradiance tailoring with two-sided Fresnel-type freeform optics
Author(s): Adrien Bruneton; Axel Bäuerle; Martin Traub; Rolf Wester; Peter Loosen
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Paper Abstract

Based on the Monge-Kantorovich theory of optimal mass transport, the computation of a ray mapping between source and target irradiances is used to design two-sided freeform lenses fulfilling the constraints of an automotive application: compactness and sharp bright-dark cutoff. A generic segmentation technic resulting in Fresnel-type optics is presented and the whole procedure is illustrated with the design of a fog light lens. Finally Monte Carlo simulation of the virtual model and measurements of a polycarbonate prototype are presented.

Paper Details

Date Published: 11 October 2012
PDF: 7 pages
Proc. SPIE 8485, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration IX, 84850H (11 October 2012); doi: 10.1117/12.929801
Show Author Affiliations
Adrien Bruneton, RWTH Aachen Univ. (Germany)
Axel Bäuerle, RWTH Aachen Univ. (Germany)
Fraunhofer Institute for Laser Technology, (Germany)
Martin Traub, Fraunhofer Institute for Laser Technology (Germany)
Rolf Wester, Fraunhofer Institute for Laser Technology (Germany)
Peter Loosen, RWTH Aachen Univ. (Germany)
Fraunhofer Institute for Laser Technology, (Germany)


Published in SPIE Proceedings Vol. 8485:
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration IX
Roland Winston; Jeffrey M. Gordon, Editor(s)

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