基于四象限探测器的激光导引镜头的研制  

Laser guided lens based on four-quadrant detector

作　　者：张军强[1] 谢飞[2] 薛庆生[1] 辛久喜 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]洛阳电光设备研究所,河南洛阳471009 [3]大连欧普迪光电仪器有限公司,辽宁大连116001

出　　处：《中国光学》2015年第3期471-479,共9页Chinese Optics

基　　金：国家高技术研究发展计划(863计划)资助项目(No.2011AA12A103)

摘　　要：为了满足激光制导对大视场、高线性度探测的性能要求,基于激光制导炸弹的应用需求,介绍了四象限探测器的工作原理和特点,分析了光斑大小、能量均匀性、线性度、探测距离等参数对探测精度的影响;结合系统性能指标,选择了合理的光学系统结构类型,完成了光学系统设计和光机结构设计;利用畸变、点列图、足迹图、能量集中度等指标对系统性能进行了评价,并分析了目标大小和探测距离对光斑大小的影响。测试结果表明,激光导引镜头总视场为±20°、线性视场为±10°、目标大小为1.5~2.4 m、探测距离为50 m^4 km、测角精度优于0.2°,能够满足激光导引的需求。In order to meet the leaser guiding requirements, such as large FOV, high linearity detecting and so on, the working principle and characteristics of four-quadrant detector are introduced based on the application requirements of laser-guided bombs.Spot size, energy uniformity, linearity, detection range and other parameters which influence detection accuracy are analyzed.Based on the system requirements, a reasonable structure type of optical system is selected, and optical system design and machine design are completed.Distortion, spot diagram, footprint and geometric encircled energy are used to evaluate the system performance, and the effects of target size and detection distance on spot size of the guidance system are presented.Test re-sults show that the total FOV is ±20°; the linear FOV is ±10°; the detectable target size is 1.5-2.4 m;the detectable detection range is 50 m-4 km and angle detecting accuracy is better than 0.2°, which meet the needs of laser guidance.

关 键 词：激光导引头 四象限探测 光学设计 光机结构设计 仿真分析 

分 类 号：TJ765.3[兵器科学与技术—武器系统与运用工程] TH743[机械工程—光学工程]