Compact collimators designed with a modified point approximation for light-emitting diodes

Tao Luo; Gang Wang

doi:10.1117/12.2273526

17 October 2017 Compact collimators designed with a modified point approximation for light-emitting diodes

Tao Luo, Gang Wang

Author Affiliations +

Proceedings Volume 10379, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XIV; 103790G (2017) https://doi.org/10.1117/12.2273526
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

We present a novel freeform lens design method for an application to LED collimating illumination. The method is derived from a basic geometric-optics analysis and construction approach. By using this method, a compact collimated lenses with Aspect Ratio = 0.219 is presented. Moreover, the utility efficiency (UE) inside the angle defined by ideal concentrator hypothesis with different lens-to-LED size ratios for both this lens and TIR lens are presented. A prototype of the collimator lens is also made to verify the practical performance of the lens, which has light distribution very compatible with the simulation results.

Conference Presentation

Citation Download Citation

Tao Luo and Gang Wang "Compact collimators designed with a modified point approximation for light-emitting diodes", Proc. SPIE 10379, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XIV, 103790G (17 October 2017); https://doi.org/10.1117/12.2273526

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