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Proceedings Paper

A multi-beam holographic light concentrator for solar applications
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Paper Abstract

High efficiency solar cells are emerging as a viable tool for tapping solar energy. Such cells need cool light to be concentrated on them for high conversion efficiency. Conventional refractive and reflective light concentrators, with sun tracking systems, are bulky and heat the solar cell due to single focus convergence of heat and light radiation. HOEs are emerging as an active candidate for making new generation light concentrators. In this paper we report the design, development and characterization of a multi beam reflection HOE for light concentration. The proposed design of single focus, multiple exposed reflection element with wavelength selectivity can be used to avoid sun following system.

Paper Details

Date Published: 4 January 2008
PDF: 6 pages
Proc. SPIE 6832, Holography and Diffractive Optics III, 68321E (4 January 2008); doi: 10.1117/12.758435
Show Author Affiliations
T. L. Shaji Sam, Ctr. for Development of Imaging Technology (India)
V. Vadivelan, Ctr. for Development of Imaging Technology (India)
P. T. Ajith Kumar, Ctr. for Development of Imaging Technology (India)

Published in SPIE Proceedings Vol. 6832:
Holography and Diffractive Optics III
Yunlong Sheng; Dahsiung Hsu; Chongxiu Yu, Editor(s)

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