超景深鬼像仿真分析方法研究  

Research on Simulation Analysis Method of Exceed Depth of Field Ghost Image

作　　者：刘韬[1] 汪向阳 余毅[1] 刘震宇[1] 何锋赟[1] 李周[1] LIU Tao;WANG Xiang-yang;YU Yi;LIU Zhen-yu;HE Feng-yun;LI Zhou(Changchun Institute of Optics, Fine Mechanics and Physics,Chinese Academy of Sciences, Changchun 130033, China;Unit 63861 of PLA, Baicheng 137001, China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国人民解放军63861部队,吉林白城137001

出　　处：《红外》2020年第11期27-32,共6页Infrared

基　　金：国家自然科学基金面上项目(51675506);科技部重点研发计划项目(2018YFF01011503)。

摘　　要：具有确定相对孔径的光学系统只能对有限景深范围内的物体进行清晰成像。而超出景深范围的物体经过两个光学元件的两次反射之后,聚焦于探测器靶面,形成超景深鬼像光斑,大大降低了对比度。利用Code Ⅴ与LightTools软件对已产生超景深鬼像的光学系统进行了仿真分析,并对产生超景深鬼像的两个光学元件表面进行了定位。仿真结果与产生的现象能够对应,证明该方法正确可行,并可用于其他光学系统。The optical system with the fixed relative aperture can only clearly image objects within a limited depth of field. Once reflected twice by two optical elements, the object beyond the depth of field is focused on the detector target surface, and a exceed depth of field ghost spot forms, which greatly reduces the contrast. In this paper, Code Ⅴ and LightTools are used to simulate and analyze the optical system, and the surfaces of the two optical elements are located which generate the ghost image of depth of field. The simulation results correspond to the generated phenomena. It proves that the simulation analysis method is correct and feasible,and can be used in other optical systems.

关 键 词：超景深鬼像 CodeⅤ LightTools 仿真分析 

分 类 号：TN211[电子电信—物理电子学] TN214