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Development Status and Prospects of Large Diameter Fresnel Lens Mould Machining

GUAN Jia-liang1,CHEN Zhi-de1,CAO Cheng-guo2,WANG Wen-chang1(1College of Mechanical and Electronic Application,Beijing University of Technology,Beijing 100124,China)(2Beijing Precision Machinery & Engineering Research Co,Ltd,Beijing 101312,China)  
Large diameter Fresnel lens is widely used in solar power station,the DLP projection display and other fields,yet the mould processing manufacturing is difficult.Aimed at the machining equipment for large diameter Fresnel lens mold and development of the machining technology,deep analysis is made and study status for machining the lens molds is summarized as well as the development direction in the future is prospected.
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