Three-zone multifocus hybrid Fresnel lens concentrator

In this paper, we designed a three-zone multifocus hybrid Fresnel lens concentrator without a homogenizer. This concentrator uses three types of prisms: a refractive prism, a single total internal reflection (STIR) prism, and a double TIR (DTIR) prism. In order to achieve a uniform irradiance distri...

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Bibliographic Details
Published in:Applied optics (2004) 2021-04, Vol.60 (12), p.3281
Main Authors: Lu, Ya-Chi, Pan, Jui-Wen
Format: Article
Language:English
Subjects:
Concentrators
Fresnel lenses
Irradiance
Prisms
Quadrants
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Summary:In this paper, we designed a three-zone multifocus hybrid Fresnel lens concentrator without a homogenizer. This concentrator uses three types of prisms: a refractive prism, a single total internal reflection (STIR) prism, and a double TIR (DTIR) prism. In order to achieve a uniform irradiance distribution, the Fresnel lens is cut into four quadrants and reconnected. Moreover, by decreasing the angle of the edge ray, the hot spot effects caused by the STIR and DTIR prisms can be reduced. Finally, the three-zone multifocus hybrid Fresnel lens concentrator can achieve a geometric concentration ratio of 2121X, f-number of 0.441, optical efficiency of 76.570%, acceptance angle of ±0.268 , uniformity of 57.002%, and hot spot criteria of 1.369.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.420093