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折/衍共口径红外双波段位标指示器光学系统设计 预览

Optical system design of folded/diffractive co-aperture infrared dual-band beam positioner
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摘要 针对反射式双模位标指示器视场小、中心遮拦、能量低等问题,提出一种折/衍共口径红外双波段位标指示器光学系统。基于消色差理论和MRTD模型分别推导了光学系统波段间消色差公式和作用距离方程。设计的双波段光学系统具有共焦距特性,从而实现了双波段同步探测以及识别目标信息的一致性。折/衍共口径红外双波段位标指示器光学系统工作波长为3.4~4.8μm、7.7~9.5μm,俯仰、偏航视场为-26°~26°,焦距115 mm,F数为2。结果表明:在-40~60℃温度范围内消热差,成像质量接近衍射极限。 Aiming at the problem of small-field,central obscuration and low anergy of reflective optical system,the dual-mode beam positioner optical system of a folded/diffractive co-aperture infrared dual-band positioner was proposed.Based on achromatic theory and MRTD model,the equations of wavelength band achromaticity and action distance were deduced,respectively.With the property of a common focal length in the dual-band optical system,dual-band simultaneous detection and consistency of target information identification were achieved.The parameters of the folded/diffractive co-aperture infrared dual-band positioner optical system were as follows:wavelengths are 3.4-4.8μm and 7.7-9.5μm,pitch/yaw is-26°-26°.focal length is 115 mm and F number is 2.The results show that thermal difference eliminated in the temperature range of-40-60℃,the optical transfer function is close to the diffraction limit.
作者 岳宝毅 刘钧(指导) 郭佳 陈阳 李汉 Yue Baoyi;Liu Jun;Guo Jia;Chen Yang;Li Han(School of Optoelectronic Engineering,Xi′an Technological University,Xi'an 710021,China;Xi′an Research Institute of Applied Optics,Xi′an 710065,China;China Baicheng Weapons Experiment Center,Baicheng 137001,China)
出处 《红外与激光工程》 EI CSCD 北大核心 2019年第4期193-201,共9页 Infrared and Laser Engineering
基金 陆军装备XXX预研项目(XXXZY) 陕西省重点实验室项目(17JS052).
关键词 折/衍结构 双波段 共口径 消热差 folded/diffraction structure dual band co-aperture athermalization
作者简介 岳宝毅(1992-),男,硕士生,主要从事光学设计理论及技术方面的研究。Email:1759198767@qq.com;刘钧(1964-),女,教授,硕士,主要从事光学设计理论研究与光电仪器设计方面的研究。Email:junliu1990@163.com.
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