利用峰值波长分别为460、525、625、730、850、940 nm 的6 种大功率LED 研制了一款LED 太阳模拟器。LED 太阳模拟器的光源在满足有效辐照面上1 个太阳辐照强度的同时，还达到光谱匹配的A 级标准。在设计中，辐照不均匀度指的是6 种波长LED 组合下的光源在有效辐照面上能量的不均匀性。为了降低LED 太阳模拟器在有效辐照面上的辐照不均匀度，在设计过程中结合LED 发光角度大的光学特点，针对性的采用能够实现多次聚光的光学系统，通过对LED 阵列光源的控制，实现160 mm×160 mm 有效辐照面积上辐照不均匀度的A 级标准。根据国际标准，该LED 太阳模拟器达到AAA 级太阳模拟器的标准。

Six kinds of high power LED which have peak wave length of 460, 525, 625, 730, 850, 940 nm respectirdy. The light source of the LED solar simulator meets the intensity of 1 solar irradiation on the effective radiation surface, and also achieves the level of spectral matching. In this design, the irradiation nonuniformity index is six wavelength combination of LED light source in the effective irradiated surface inhomogeneity of energy. In order to reduce nonuniformity on the effective irradiated surface of the LED solar simulator, we combine design process with optical characteristics of LED light emitting angle, and pointedly realize multiple converging optical systems. Through the control of LED light source array, we have achieved 160 mm×160 mm A-level standard of non-uniformity on effective irradiation area. According to the international standard, the standard of the LED solar simulator reaches the level of the AAA level solar simulator standard.