太阳模拟器中正方形光学积分器的设计与分析

为了解决太阳模拟器辐照均匀度问题，设计一种可以明显提高太阳模拟器辐照均匀度的正方形光学积分器。根据太阳模拟器以及光学积分器的组成与工作原理，对正方形光学积分器各光学参数进行理论设计，并且分析积分器像差对工作面均匀性的影响。利用Lighttools软件对太阳模拟器系统进行仿真，提出了投影镜离焦改善辐照面均匀性的优化方法。设计的积分器可使太阳模拟器在200 mm200 mm正方形辐照面内的辐照不均匀度达到1.72 %。

Design and analysis of square integrator in solar simulator

In order to solve the irradiance uniformity problem of the solar simulator, a kind of square optical integrator was designed that could obviously improve the solar simulator irradiance uniformity. According to the composition and working principle of the solar simulator and optical integrator, the square optical integrator parameters were computed and the effect of integrator aberration on the uniformity of woring face was analyzed. Simulation of the solar simulator system was done using Lighttools software, and the optimization methods were proposed for improving irradiation uniformity by projection lens defocus.The irradiation non uniformity can reach 1.72% in 200 mm×200  mm square irradiation surface by using the designed integrator.