Shaping and homogenization of LED white light using aperiodic scattering cell arrays (Conference Presentation)

Daniel Asoubar; Roberto Knoth; Hagen Schweitzer; Frank Wyrowski; Huiying Zhong

doi:10.1117/12.2273897

19 September 2017 Shaping and homogenization of LED white light using aperiodic scattering cell arrays (Conference Presentation)

Daniel Asoubar, Roberto Knoth, Hagen Schweitzer, Frank Wyrowski, Huiying Zhong

Author Affiliations +

Proceedings Volume 10379, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XIV; 103790F (2017) https://doi.org/10.1117/12.2273897
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

Shaping of LED white light is of increasing interest for several industrial applications. There are several known design concepts available. However these concepts suffer from high uniformity errors, low efficiencies, chromatic aberrations and/or high tolerance sensitivity. To overcome these limitations we present a novel design concept which is based on the design of aperiodic scattering cell arrays. In a first design step, a unit scattering cell is designed. Afterwards this cell is periodically replicated. Finally the periodicity of the array is broken using parametric optimization. Obtained design results are compared with experimental data.

Conference Presentation

Citation Download Citation

Daniel Asoubar, Roberto Knoth, Hagen Schweitzer, Frank Wyrowski, and Huiying Zhong "Shaping and homogenization of LED white light using aperiodic scattering cell arrays (Conference Presentation)", Proc. SPIE 10379, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XIV, 103790F (19 September 2017); https://doi.org/10.1117/12.2273897

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