可见光/中红外双波段位标指示器光学系统设计  

Optical system design of visible/mid-infrared dual-band-seeker

作　　者：高明[1] 张弓箭[1] 吕宏[1] 

机构地区：[1]西安工业大学光电工程学院,西安710021

出　　处：《仪器仪表学报》2013年第2期469-474,共6页Chinese Journal of Scientific Instrument

基　　金：陕西省自然科学基础研究计划(2012JM8008);国家自然科学基金(61172031)资助项目

摘　　要：针对制导领域目标干扰手段以及隐身水平不断提高的情况,结合可见光和中红外两个波段的特点,把两个波段两种寻的模式的位标指示器复合起来,设计了能够在双波段成像的位标指示器。该位标器采用共形整流罩来改善空气动力学性能,用Wassermann-Wolf非球面和衍射元件来校正整流罩引入的像差。对于红外系统采用光学被动式消热差法,在-40～+65℃的温度范围进行热补偿。设计结果表明,2个子系统成像质量良好,组合系统体积小、重量轻,可昼夜全天候工作,提高了对目标的捕获、跟踪和识别能力。Aiming at the situation that the target interference means and stealth level are continuously improved in guidance field,considering the characteristics of visible light and MIR, a dual-band-seeker was designed by combining the imaging seekers in two bands. The dual-band-seeker adopts a eonformal cover nose to improve the aerodynamic performance. The Wassermann-Wolf aspheric surface and DOE are used to correct the aberration caused by the cover nose. Optical passive athermalisation technique is used to compensate the image quality of the infrared optical system in the temperature range of -40 ～ ＋ 65 ℃. The design results show that the two sub-systems have good imaging quality;and the combined system features small volume and light weight. The seeker can work in day and night,and its target capture, tracing and recognition capabilities are improved.

关 键 词：双波段 共形光学 Wassermann-Wolf非球面 消热差 

分 类 号：O439[机械工程—光学工程]