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Proceedings Paper

The design of beam shaping focused lens applied in solar energy concentration
Author(s): Shih-Hsin Ma; Chi-Hung Lee; Yun-Parn Lee; Jih-Huah Wu; Chun-Ming Tseng
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Paper Abstract

In this paper, we proposed a new configuration of concentrator in solar PV system. A special optical system in the concentrator used in focusing sun light to solar cell is proposed, the system compose of an aspherical surface and a specific diffusing surface. The uniform-squared light pattern is obtained on the solar cell, the shape and size of light pattern can be modulated by the parameters of the diffusing surface. In order to decrease the weight of the lens, the concentrator in Fresnel lens type is built at last. Besides, the optical efficiencies formed by the aspherical concentrator and Fresnel concentrator are about 92% and 77%, the concentrations are about 720mW/mm2 and 640mW/mm2, and the acceptance angles are about 0.35° and 0.30°, respectively. The tolerances in assembling the component of the concentrator are also discussed in detail.

Paper Details

Date Published: 21 September 2011
PDF: 7 pages
Proc. SPIE 8128, Current Developments in Lens Design and Optical Engineering XII; and Advances in Thin Film Coatings VII, 81280L (21 September 2011); doi: 10.1117/12.892954
Show Author Affiliations
Shih-Hsin Ma, Feng Chia Univ. (Taiwan)
Chi-Hung Lee, Feng Chia Univ. (Taiwan)
Yun-Parn Lee, Ming Chuan Univ. (Taiwan)
Jih-Huah Wu, Ming Chuan Univ. (Taiwan)
Chun-Ming Tseng, Feng Chia Univ. (Taiwan)


Published in SPIE Proceedings Vol. 8128:
Current Developments in Lens Design and Optical Engineering XII; and Advances in Thin Film Coatings VII
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

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