圆锥曲面Fresnel透镜数值设计方法（英文）  

Numerical design method for conic curved Fresnel lens

作　　者：程颖 房丰洲[2,3] 卢永斌 张效栋 Cheng Ying;Fang Fengzhou;Lu Yongbin;Zhang Xiaodong(Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry ＆ Food Machinery and Equipment,College of Mechanical Engineering,Tianjin University of Science and Technology,Tianjin 300222,China;State Key Laboratory of Precision Measuring Technology ＆ Instruments,Tianjin University,Tianjin 300072,China;Centre of MicroNano Manufacturing Technology（MNMT）,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津科技大学机械工程学院天津市轻工与食品工程机械装备集成设计与在线监控重点实验室,天津300222 [2]天津大学精密测试技术及仪器国家重点实验室,天津300072 [3]天津市微纳制造技术工程中心,天津300072

出　　处：《红外与激光工程》2018年第7期216-222,共7页Infrared and Laser Engineering

基　　金：国家自然科学基金青年科学基金(61705166);国家自然科学基金(51320105009&91423101);天津市教委科研计划项目(2017KJ019);天津市重点实验开放基金(2016LIMFE01);天津科技大学青年教师创新基金(2014CXLG20)

摘　　要：Fresnel透镜是最常见的太阳能聚光镜之一,曲面Fresnel透镜通常比平面Fresnel透镜具有更加优越的性能。基于非成像光学理论,提出了一种新型曲面Fresnel透镜的设计方法。曲面Fresnel透镜采用圆锥曲面基底,在满足Fresnel透镜机械参数要求的前提下,实现Fresnel透镜第二工作面面型的求解。基于可加工性的要求,利用该方法设计了不同形状的曲面Fresnel透镜,通过光学仿真分析了曲面Fresnel透镜的结构参数对聚光镜会聚比、容忍角、光照均匀性的影响,并分析了超精密加工条件下,由于加工误差对光学效率的影响。该设计方法为参数化曲面Fresnel透镜的分析提供了一种新的途径。仿真结果表明,具有小深宽比的曲面Fresnel透镜具有更好的均匀性和更高的能量利用率。Fresnel lens is one of the most common solar concentrators. The performance of the curved Fresnel lens is usually better than flat Fresnel lens. Based on the principle of non-imaging optics, a new curved Fresnel lens design method was proposed in this study. The curved Fresnel lens was on conical surface. In the premise of meeting the mechanical requirements of the Fresnel lens, the slope of the second surface of the Fresnel lens was solved. Based on the objective of manufacturability, different shapes of Fresnel lenses were obtained by this method to analyze the effect of structural parameters of curved Fresnel lens on concentration ratio, acceptance angle and the illumination uniformity by optical simulation. The effect of machining error on optical efficiency in ultra-precision machining was also analyzed. The design method provided a new way for the parametric analysis of curved Fresnel lens. The simulation results show that the small aspect ratio of curved Fresnel lens will get good uniformity and high energy efficiency.

关 键 词：非成像光学 太阳能聚光镜 曲面Fresnel透镜 超精密车削 

分 类 号：O435[机械工程—光学工程]