非共轴椭球面聚光阵列式高焦比太阳模拟器  

A High Flux Solar Simulator Based on an Array of Non-Coaxial Ellipsoidal Reflector

作　　者：任兰旭[1,2] 魏秀东[1] 牛文达[1] 王鹤[1] 许文斌[1] 肖君[1,2] 卢振武[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院研究生院,北京100049

出　　处：《光学学报》2012年第10期212-217,共6页Acta Optica Sinica

基　　金：国家973计划(2010CB227101);国家自然科学基金(11174275)资助课题

摘　　要：为使太阳模拟器的接收靶得到高能流高均匀度光斑,需要对聚光系统进行优化设计。提出利用非共轴椭球面聚光镜优化光斑质量的方法,使光斑的能流分布均匀度有明显改善。利用蒙特-卡罗光线追迹方法,设计了聚集型高焦比太阳模拟器。在第二焦面处,80mm直径的接收靶面上可接收10kW的辐射光能,光斑对称性和均匀性好,系统的传递效率为23.81%,80mm直径靶面内的平均能流密度为2MW/m2,50mm直径靶面内平均能流密度达到3.64MW/m2,对应的理论色温超过2800K。采用非共轴椭球面聚光镜,成功研制了由电源控制系统、冷却系统、氙灯光源和聚光系统构成的太阳能模拟器。经实验测试,太阳模拟器的聚光光斑与光学仿真软件TracePro模拟光斑符合得很好。To get a high-flux and high-uniformity spot in the target of solar simulator, the design and optimization of reflector are needed. Using non-coaxial ellipsoidal reflector to improve the quality of spot, the flux uniformity of spot is improved obviously. By using Monte-Carlo ray tracing method, a high flux concentrating solar simulator is designed. The target of 80 mm diameter can receive 10 kW radiative power on the second focal plane. The symmetry and uniformity of radiative spot are good, and the transfer efficiency of system from source to target is 23.81%. The average flux is 2 MW/m^2 in the 80 mm diameter target and the flux can get 3.64 MW/m^2 in the 50 mm diameter target which corresponds to a theoretical stagnation temperature of 2800 K. Non-coaxial ellipsoidal reflector is used to manufacture a solar simulator making up of supply control system, cooling system, xenon lamps and a condenser system. The focusing spot of solar simulator obtained in experiment test accords with the model spot by optical design simulation software TracePro.

关 键 词：光学设计 光斑质量 光线追迹方法 太阳模拟器 

分 类 号：O435[机械工程—光学工程]