红外搜跟场景投射器投影子系统光学系统设计

发布时间：2018-05-29 19:15

本文选题：红外光学 + 光学系统设计　；参考：《西安工业大学》2015年硕士论文

【摘要】：红外搜跟场景投射器可以在实验室环境中模拟动态点源红外目标,为红外搜索跟踪系统的各项技术指标的评测提供人为可控,低成本,可反复测试的实验条件,在红外搜索跟踪设备的设计研发过程中,对系统的性能进行综合评价。投影子系统的光学系统是红外搜跟场景投射器的重要组成部分,本课题根据红外搜跟场景投射器的总体技术指标,利用ZEMAX光学设计软件,设计了一基于黑体辐射的红外双通道准直投射系统。系统采用一个无焦系统和后聚焦系统的组合系统,工作波波段为8～12μm,系统焦距为230.56mm,视场为12。,出瞳距为600mm,出瞳直径为100mm,各视场的MTF曲线在201p/mm处均接近衍射极限,各视场弥散角均小0.2mrad,畸变小于2%,像质优良。同时为了满足仪器使用要求,引入衍射元件对系统进行了光学被动式消热处理,系统各项指标满足要求。最后为了确保加工,对系统进行了公差分析,在给定的公差范围内,经过蒙特卡洛模拟分析,光学系统的各项指标均满足总体要求。
[Abstract]:The infrared tracking scene projector can simulate the dynamic point source infrared target in the laboratory environment, and provide the experimental conditions for the evaluation of the various technical specifications of the infrared search and tracking system that can be artificially controllable, low-cost, and can be repeatedly tested. In the process of design and development of infrared search and tracking equipment, the performance of the system is evaluated synthetically. The optical system of shadow casting system is an important part of the infrared tracking scene projector. According to the overall technical specifications of the infrared tracking scene projector, this paper uses the ZEMAX optical design software. An infrared double channel collimation projection system based on blackbody radiation is designed. The system is composed of a non-coke system and a rear focusing system. The working wave band is 80.12 渭 m, the system focal length is 230.56mm, the field of view is 12.The pupil distance is 600mm, and the pupil diameter is 100mm. The MTF curves of each field of view are close to the diffraction limit at 201p/mm. The dispersion angle of each field is 0.2mrad. the distortion is less than 2 and the image quality is good. At the same time, in order to meet the requirements of the instrument, the diffractive elements are introduced to the system for optical passive heat treatment, and the system indexes meet the requirements. Finally, in order to ensure the machining, the tolerance analysis of the system is carried out. In the given tolerance range, through Monte Carlo simulation analysis, each index of the optical system meets the overall requirements.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN216

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