水下激光周视扫描4f发射光学系统设计  

Design of 4f emission optical system for underwater laser circumferential scanning

作　　者：钟昆[1] 苏伟[1] 彭波[1] 黄莎玲[1] Zhong Kun;Su Wei;Peng Bo;Huang Shaling(Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang 621999,China)

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621999

出　　处：《红外与激光工程》2021年第3期191-202,共12页Infrared and Laser Engineering

基　　金：国家自然科学基金(61505184);国家部委预研基金(61406190112)。

摘　　要：针对水下激光周视扫描环窗设计的缺点,提出一种转移扫描基点的发射光学系统设计方法。该方法基于开普勒望远镜的结构,通过对物镜和目镜组分别采用像方远心方法进行共轭设计并加以畸变控制,对光束的发散角及其分布均匀性进行了优化。在优化设计的基础上,分别仿真分析了平板窗和共形窗对光束质量的影响,以及镀膜对能量传输效率的影响。最后,对不同窗口设计进行了公差分析和水压受力仿真。光学和力学仿真结果表明,该方法有效减小了壳体表面开窗面积,避免了环窗设计造成的扇形探测盲区,对水下激光周视扫描发射系统的工程设计具有一定的指导意义。Aiming at the shortcomings of the design of the underwater laser peripheral scanning ring window,a design method of the transmitting optical system that shifted the scanning base point was proposed.This method was based on the structure of Kepler telescope.The divergence angle of the beam and its distribution uniformity were optimized by adopting the image-side telecentric method for the conjugated design and distortion control of the objective lens and the eyepiece group.On the basis of the optimized design,the influence of the flat window and the conformal window on the beam quality and the influence of the coating on the energy transmission efficiency were simulated and analyzed respectively.Finally,tolerance analysis and hydraulic simulation of different window designs were carried out.The simulation results of optics and mechanics show that the method effectively reduces the window area of the shell surface,avoids the blind area of the fan-shaped detection caused by the design of the ring window,and has certain guiding significance for the engineering design of the underwater laser peripheral scanning emission system.

关 键 词：水下探测 激光扫描 周向探测 像方远心 

分 类 号：TJ430[兵器科学与技术—火炮、自动武器与弹药工程]