学术论文

      反激光探测红外双波段光学系统设计

      Design of infrared dual band optical system based on anti-laser detection

      摘要:
      针对激光主动探测技术对光电设备的威胁,提出了通过光敏面倾斜设计来改变激光回波偏转角,从而提升系统反激光主动探测性能的方法.设计了一款光敏面倾斜为5°的中/长波双波段反激光探测光学系统,利用自由曲面校正了光敏面倾斜引入的像差.所设计的系统工作波段为3~5 μm,8~12μm.视场角为±2.4°,F数为2.设计结果表明,在奈奎斯特频率17 lp/mm处,两个波段传递函数均高于0.38,满足红外系统对成像质量的要求.通过反追光迹分析得出系统的被探测距离得到有效降低.
      Abstract:
      Aiming at the threat of laser active detection technology to electro-optical devices,a method using photosensitive surface inclined design to reduce the laser echo energy was proposed,so as to improve the system performance of anti-laser detection.A middle and long wave dual band infrared antilaser detection optical system was designed whose photosensitive surface inclined 5°.The aberration of the photosensitive surface was corrected by using the free-form surface.The designed system operating band was 3-5 μm,8-12 μm.The field angle was ±2.4°,the number of F was 2.This result shows that the transmission function of the two bands is higher than 0.38 at the frequency of 17 lp/mm of Nyquist,which satisfies the requirement of imaging quality of infrared system.Then,through the anti-chase track analysis,the detection distance of the system is effectively reduced.
      作者: 陈阳 [1] 张安锋 [2] 茹志兵 [2]
      Author: Chen Yang [1] Zhang Anfeng [2] Ru Zhibing [2]
      作者单位: 西安工业大学光电工程学院光电信息技术研究所,陕西西安,710021 西安应用光学研究所总体五部,陕西西安,710065
      刊 名: 红外与激光工程 ISTICEIPKU
      年,卷(期): 2017, 46(9)
      分类号: TN214
      在线出版日期: 2017年11月30日
      基金项目: 陆军装备预研项目