太阳模拟器用变曲率光学积分器研究与设计  

Research and Design of Variable Curvature Optical Integrator for Solar Simulator

作　　者：彭浩文 苏拾[1,2,3] 张国玉 刘石[1,2,3] 孙高飞 张健[1,2,3] 孟凡琳 陈永祝[1] Peng Haowen;Su Shi;Zhang Guoyu;Liu Shi;Sun Gaofei;Zhang Jian;Meng Fanlin;Chen Yongzhu(College of Optoelectronic Engineering,Changchun University of Science and Technology,Changchun,Jilin 130022,China;Jilin Province Engineering Research Center of Optical Measurement and Control Instrumentation,Changchun,Jilin 130022,China;Key Laboratory of Optoelectric Measurement and Optical Information Transmission Technology of Ministry of Education,Changchun,Jilin 130022,China)

机构地区：[1]长春理工大学光电工程学院,吉林长春130022 [2]吉林省光电测控仪器工程技术研究中心,吉林长春130022 [3]光电测控与光信息传输技术教育部重点实验室,吉林长春130022

出　　处：《光学学报》2022年第7期93-101,共9页Acta Optica Sinica

基　　金：国家自然科学基金(61603061);吉林省科技计划(20190302064GX,20190302124GX)。

摘　　要：针对等曲率光学积分器输出光斑的边缘辐照能量低而导致辐照面均匀性差的问题,基于衍射理论提出辐射能量微分、积分法,设计一种变曲率光学积分器。根据菲涅耳数来确定积分器通道的口径和数目,等距划分辐照分布曲线。根据积分器中各圈子眼透镜焦距的不同,对辐照分布曲线进行阶梯式叠加。基于衍射理论建立二维平面的变曲率光学积分器数学模型,推导工作面上的光强分布数学函数。利用Zemax软件对场镜组中各圈子眼透镜进行非球面优化设计以提高成像质量、消除旁瓣效应。采用LightTools软件仿真变曲率光学积分器与等曲率光学积分器,并对比分析它们的性能差异。结果表明,变曲率光学积分器能够使太阳模拟器输出光斑的边缘辐照能量明显提高,与等曲率光学积分器相比最高提升56%,Φ100 mm辐照面内的辐照不均匀度优于±0.5%,Φ200 mm辐照面内优于±1%。In order to solve the problem of low radiation energy at the edge of the output spot of the equal curvature optical integrator,which leads to the poor uniformity of the radiation surface,the differential and integration method of radiation energy based on the diffraction theory is proposed,and a variable curvature optical integrator is designed.The aperture and number of the integrator channel are determined according to the Fresnel number,and the radiation distribution curve is divided equidistant.According to the difference of the focal length of each eye lens in the integrator,the radiation distribution curve is superimposed step by step.Based on the diffraction theory,the mathematical model of variable curvature optical integrator in two-dimensional plane is established,and the mathematical function of light intensity distribution on the working face is deduced.The aspheric optimization design of each circle eye lens in the field lens group is carried out by using Zemax software to improve the imaging quality and eliminate the sidelobe effect.The variable curvature optical integrator and the constant curvature optical integrator are simulated by LightTools software,and their performance differences are compared and analyzed.The results show that the variable curvature optical integrator can significantly improve the edge radiation energy of the output spot of the solar simulator,up to 56% higher than that of the equal curvature optical integrator,the irradiation non-uniformity in the Φ100 mm radiation plane is better than ±0.5%,and the radiation inhomogeneity in the Φ200 mm radiation plane is better than ±1%.

关 键 词：几何光学 太阳模拟器 变曲率光学积分器 衍射理论 菲涅耳数 非球面 

分 类 号：O436[机械工程—光学工程]