机载双视场中波红外光学系统优化设计 -

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机载双视场中波红外光学系统优化设计

doi:10.3788/CO.20120506.0596

1.
长春理工大学空间光电技术研究所,吉林长春,130022;
2.
中国科学院长春光学精密机械与物理研究所,吉林长春,130033;
3.
第二炮兵驻北京军代室,北京 100039;
4.
中国人民解放军海军91329部队装备部,山东威海 264200

基金项目:

教育部博士学科重点专向科研基金资助项目(No.20070189001);国家自然科学基金资助项目(No.61077056)

详细信息

通讯作者:
董科研

中图分类号:TN216
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- 文章访问数:2481
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- 被引次数:0
出版历程
- 收稿日期:2012-09-19
- 修回日期:2012-11-16
- 刊出日期:2012-12-10

Design of an airborne dual field-of-view middle wave infrared optical system

1.
Institute of Space-electronic Technology,Changchun University of Science and Technology,Changchun 130022,China;
2.
Changchun Institute of Optics,Fine Mechanics and Physics, Chinese Academy of Sciences,Changchun 130033,China;
3.
Military Representative Office of PLA 2nd Artillery in Beijing,Beijing 100039,China;
4.
Equipment department of No.91329 Troop,the People's Liberation Army Navy,Weihai 264200,China

摘要

摘要:为了满足机载红外搜索与跟踪系统的实际使用要求,根据变焦系统的基本理论及中波红外系统的特点,设计了320 pixel256 pixel的中波制冷型焦平面阵列探测器的双视场中波红外光学系统。系统采用了二次成像结构,并在系统的第一像面位置安装光阑,以此减小杂散光对系统的影响。设计结果表明:系统具有100%冷光栏效率,在仅移动一片透镜的情况下可实现在800和400 mm的两档变焦,系统F数为4且恒定不变,像面保持稳定,系统场曲＜0.04 mm,畸变＜2.5%,在探测器的Nyquist频率16 lp/mm处光学传递函数的峰值＞0.5,表明光学系统的像质满足使用要求。
- 中波红外光学系统/
- 光学设计/
- 双视场/
- 机载/
- 搜索与跟踪系统
Abstract:In order to meet the practical requirement of airborne infrared searching and tracking systems, a dual Field-of-View(FOV) middle wave(MW) infrared optical system is designed based on the MW cooled detector with 320 pixel?250 pixel and a staring focal plane array. The system adopts the secondary imaging structure and a shield is installed in the first image surface station to reduce the stray light effect. The design results show that the system has a 100% cold shield efficiency; F number of the system keeps a constant as 4 and the image surface remains stable when only one piece of the optical lens is moved to switch the focus length between 800 mm and 400 mm; the field curvature and the distortion are less than 0.04 mm and 2.5%, respectively, and the MTF is more than 0.5 at 16 lp/mm. Obtained results demonstrate that the image quality meets the operational requirement.
- middle wave infrared optical system/
- optical design/
- dual field of view/
- airborne/
- searching and tracking system

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参考文献 (1)

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