针对传统的月球模拟器的设计原理复杂、成本较高、辐照特性差等缺点，应用液晶光阀技术设计了一种新型的月球模拟器，并重点对月球模拟器光源进行了研究。硅基液晶(LCOS)光学拼接技术的应用有效提高了月球模拟器的精度与模拟能力。通过控制程序对LCOS 像素电压的调节，促使LCOS 将入射光调制成不同的状态，从而模拟不同的月相及辐射特性。仿真结果表明：设计的月球模拟器光源可以模拟多样性的月相，并且亮度不均匀性好。采用LCOS 器件的模拟器相对传统模拟器有效提高了控制精度、减小了模拟器体积。

The traditional lunar simulator have characteristics shortcomings of complex design principles, high cost and poor radiation. In this article, we apply liquid crystal light valve technology to design a new lunar simulator, and focus on the light source of lunar simulator. Application of liquid crystal on silicon (LCOS) optical splicing technology effectively improves the accuracy and simulation capabilities of lunar simulator. Through the control program to adjust LCOS pixel voltage, LCOS modulates the incident light into different states, so it can simulate different radiation characteristics and phases. Simulation results show that: the design of the light source simulated by lunar simulate can simulate the phase diversity, and uneven brightness is good. Using LCOS device simulator effectively improves the control precision, rednces the volume of the simulator compared with the traditional simulator.