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Proceedings Paper

Planar lightguide solar concentrator
Author(s): Shu-Chun Chu; Hung-Yu Wu; Hui-Hsiung Lin
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Paper Abstract

This paper proposes a sawtooth-shape planar lightguide solar concentrator. In this design, sunlight is collected by each lens in a two-dimensional lens array and is coupled into the planar lightguide using localized micro structure placed at each lens focus. Where the micro structure is the dimpled structure [2010 International Optical Design Conference, paper ITuE5P]. In this design, one side of the planar lightguide was shaped in a sawtooth-form shape. The usage of the sawtooth-shape planar lightguide prevents most leakage of guiding rays after multiple reflections in lightguide. Simulation results show that the sawtooth-shape planar lightguide solar concentrator can achieve 92% optical efficiency at 300× concentration.

Paper Details

Date Published: 2 May 2012
PDF: 7 pages
Proc. SPIE 8438, Photonics for Solar Energy Systems IV, 843810 (2 May 2012); doi: 10.1117/12.922185
Show Author Affiliations
Shu-Chun Chu, National Cheng Kung Univ. (Taiwan)
Hung-Yu Wu, National Cheng Kung Univ. (Taiwan)
Hui-Hsiung Lin, Industrial Technology Research Institute (Taiwan)


Published in SPIE Proceedings Vol. 8438:
Photonics for Solar Energy Systems IV
Ralf Wehrspohn; Andreas Gombert, Editor(s)

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