基于棱镜的红外目标模拟器光学系统研究  

Research on optical system of infrared target simulator based on TIR prism

作　　者：刘收[1] 刘宁敏 

机构地区：[1]北京航天测控技术有限公司,北京100041 [2]中国民航科学技术研究院,北京100028

出　　处：《激光与红外》2016年第11期1369-1374,共6页Laser & Infrared

基　　金：总装预研项目(No.51317020104)资助

摘　　要：针对某型装备测试仿真用中波红外目标模拟器,研制配套透过率高、空间均匀性好、结构紧凑的高性能红外光学系统,以满足模拟器总体设计指标和具体使用需求。根据DMD核心器件红外光调制工作原理,采用了基于TIR(全内反射)棱镜的中继光学子系统,从DMD转动夹角的限制出发,利用光学全反射定理,采用最小的角度空间设计,用一对光学棱镜使照明系统入射的光线与DMD反射的光线分开,在折衍混合式红外成像光学子系统设计匹配下,该光路系统相比反射式光路镜组结构紧凑,相比透射式棱镜方式能量透过率高。在经过光路设计仿真验证的基础上,开展了光学机械设计和研制加工及测试,最终红外光学镜组成功应用到红外目标模拟器研制中,满足了模拟器总体指标体系要求和使用需求,取得了良好效果。To improve the performance of infrared dynamic scene target simulator,an infrared optical system based on TIR prism was developed. According to the principle of infrared target simulator based on DMD, relay optical subsys- tem based on TIR is used. Because of the limit of DMD rotation angle, a pair of optical prisms is used to separate inci- dent light of illuminating system and reflected light of DMD according to total reflection theory and smallest angle space design. Due to the match of refractive - diffractive hybrid infrared imaging optical subsystem, optical system has the characteristics of compact structure and high transmittance. Through optical design simulation, the feasibility of op- tical system was verified. This infrared optical system has been applied to infrared target simulator successfully, and it meets the requirement of infrared target simulator.

关 键 词：红外目标模拟器 红外光学系统 全内反射棱镜 数字微镜器件 

分 类 号：TN21[电子电信—物理电子学] O43[机械工程—光学工程]