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本文探讨设计球基面菲涅耳透镜的方法和球差计算公式,分析各种可能的设计结果,通过计算实例说明影响光效率的各种因素。提出内齿形球基面菲涅耳透镜比平基面菲湟耳透镜的光效率增加20％—100％。
This paper discusses the design method of spherical Fresnel lens and spherical aberration calculation formula, analyzes various possible design results, and illustrates the various factors that affect the light efficiency by calculating examples. It is proposed that the light efficiency of the internal toothed spherical Fresnel lens increases by 20% -100% over that of the flat-faced Faye lens.