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Proceedings Paper

A study for the special Fresnel lens for high efficiency solar concentrators
Author(s): Jian-Shian Lin; Wei-Chih Huang; Hsiu-Chen Hsu; Ming-Wen Chang; Chung-Ping Liu
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Paper Abstract

Design a Fresnel lens for a concentrator to collect more sunlight onto the solar cell due to the efficiency and cost. Since 1970, the non-imaging concentrator was used for solar energy; most of them were reflecting mirrors. The non-imaging optical system provides large aperture and forgiving imaging requirements. The Fresnel lens used in non-imaging optical system was usually called non-imaging Fresnel lens. In this research, the Fresnel lenses were refracting optical elements but diffracting ones. According to the method of Ralf Leutz and Akio Suzuki [2], using minimum deviation and minimum dispersion to design a non-imaging Fresnel lens, which obeys the edge ray principle. Use optical software TracePro to simulate the non-imaging Fresnel lens, and each pitch size was 0.3mm and 200mm focus distant. Discusses the losses of non-imaging Fresnel lens and find out the relation of efficiency and F-Number. The optical concentration ratio could reach 15X (2-D) and 230X (3-D).

Paper Details

Date Published: 20 August 2005
PDF: 9 pages
Proc. SPIE 5942, Nonimaging Optics and Efficient Illumination Systems II, 59420X (20 August 2005); doi: 10.1117/12.614298
Show Author Affiliations
Jian-Shian Lin, Industrial Technology Research Institute (Taiwan)
Wei-Chih Huang, Yuan Ze Univ. (Taiwan)
Hsiu-Chen Hsu, Industrial Technology Research Institute (Taiwan)
Ming-Wen Chang, Yuan Ze Univ. (Taiwan)
Chung-Ping Liu, Yuan Ze Univ. (Taiwan)

Published in SPIE Proceedings Vol. 5942:
Nonimaging Optics and Efficient Illumination Systems II
Roland Winston; R. John Koshel, Editor(s)

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