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平板菲涅尔透镜设计及组合优化方法

Keywords: 菲涅尔透镜,焦斑,高倍聚光光伏

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Abstract:

为了解决传统的球面菲涅尔透镜模具加工工艺难度大、精度低、制作成本高等问题,提出一种中心透镜为球面、外侧环带为倾斜面的平板菲涅尔透镜的设计方法,并进行了基于多平面拟合和基于多焦点的组合优化设计,给出了具体设计实例,进行了光学仿真.结果表明:优化后菲涅尔透镜聚光效率达93%,聚焦光斑能量均匀性4.9,满足设计要求.

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