光学学报, 2019, 39 (10): 1011003, 网络出版: 2019-10-09
基于数字微镜器件的面源目标模拟实验系统研究 下载: 1016次
Source Simulation Experimental System Based on Digital Micromirror Device
成像系统 成像畸变 仿真建模 数字微镜器件 imaging system imaging distortion simulation modeling digital micromirror device
摘要
建立了用数字微镜器件(DMD)作为显示器件的目标模拟系统,对成像畸变进行了研究。进行系统总体设计,利用几何光学计算了DMD不同姿态方位引起的物空间深度及变形量,确定了最佳姿态。针对DMD装调问题,利用光学软件对系统进行仿真,建立了畸变检测模板和算法,分析DMD姿态角的装调误差可知,0.3°俯仰角或方位角偏差引入的畸变约为1.3%。最后在设计和仿真结果的指导下,完成了系统实验光路的建立,实验结果表明,系统最大视场的平均畸变为0.385%。
Abstract
We establish a source simulation system by using a digital micromirror device (DMD) as a display device and investigate the imaging distortion of an optical system. First, we illustrate the general design of the system and calculate the object-space depth and shape variables caused by the different attitude azimuth of the DMD by using geometric optics. Then, we choose the optimum attitude. Subsequently, we simulate the system by using optical software, establish the imaging distortion measurement template and algorithms, and analyze the installation error of the DMD's attitude angle. The analysis shows that the imaging distortion is about 1.3% caused by the 0.3° pitch angle or azimuth deviation. Finally, guided by the design and simulation results, the optical path of the experimental system is completed. The results show that the average distortion corresponding to the maximum field of view is 0.385%.
陈雪旗, 姜爱民. 基于数字微镜器件的面源目标模拟实验系统研究[J]. 光学学报, 2019, 39(10): 1011003. Xueqi Chen, Aimin Jiang. Source Simulation Experimental System Based on Digital Micromirror Device[J]. Acta Optica Sinica, 2019, 39(10): 1011003.