FRESNEL LENS, ITS MANUFACTURING METHOD, AND ITS USE

摘要

PROBLEM TO BE SOLVED: To provide a Fresnel lens which has excellent heat resistance, durability and optical performances, its manufacturing method of high productivity and a concentrating solar cell unit or the like using the Fresnel lens.

SOLUTION: The Fresnel lens comprises a Fresnel lens molded layer (A) and a transparent supporting substrate (B). The Fresnel lens molded layer (A) is made by transferring formation of saw-like fine pattern stripes of the Fresnel lens by heat-pressing a transparent soft silicone rubber sheet with a master metallic mold. Further the manufacturing method of the Fresnel lens and the conversion system solar battery unit or the like using the Fresnel lens are provided.

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