基于四透镜光学系统的鬼像形成研究  

Research on Ghost Image Formation Based on Four Lenses Optical System

作　　者：谭乃悦 许中杰[1] 王睿[1] TAN Nai-yue;XU Zhong-jie;WANG Rui(College of Opto-Electronic Science and Engineering,National University of Defense Technology, Changsha 410073,China)

机构地区：[1]国防科学技术大学光电科学与工程学院,长沙410073

出　　处：《光电技术应用》2018年第1期1-5,76,共6页Electro-Optic Technology Application

基　　金：激光与物质相互作用国家重点实验室开放基础研究课题SKLLIM1402

摘　　要：通过实验研究了由四透镜组成的中红外透射光学成像系统的鬼像在像平面上的分布规律。研究表明,随着光源入射角度的变化,像平面上透射光聚焦点与鬼像中心的位置相对视场中心发生偏移,且在相同条件下,鬼像中心的偏移量与透射光聚焦点的偏移量并不相同。根据该成像规律,针对鬼像中心的偏移量比透射光聚焦点的偏移量大的透射光学系统,提出一种抑制鬼像的有效方法,即通过调整造成鬼像的核心透镜的角度,使鬼像位移出视场,并利用软件仿真验证该方法的正确性,为以后复杂光学系统的鬼像规避设计提供有益的参考。Distribution laws of the ghost reflection at the image plane of the mid-infrared transmission optical system with four lenses are researched through experiments.Research results show that with the changing of the incident light angle,both the ghost image center and the focus of the transmission light at the image plane shift relative to the center of field of view.While under the same conditions,the ghost image shows a larger displacement than the transmission focus.According to this imaging law,an effective method is carried out to suppress the ghost image.By tilting the main lens rising to ghost image with a certain angle,the ghost image will be removed from the field.The validity of this method is also verified by software simulation.The method provides an effective way to avoid ghost image in complicated optics system.

关 键 词：鬼像 中红外光学系统 鬼像抑制 软件仿真 光学系统设计 

分 类 号：O482.3[理学—固体物理]