Optomechanical analysis and optimization of spaceborne lidar telescope primary mirror

被引：0
|
作者：
Mu Y. [1 ,2 ]
Wan Y. [1 ]
Liu J. [1 ]
Hou X. [1 ]
Chen W. [1 ]
机构：
[1] Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai
[2] University of Chinese Academy of Sciences, Beijing
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2018年 / 47卷 / 07期
关键词：
Finite element analysis; Lidar; Optimization of optomechanical system; Optomechanical analysis; Telescope;
D O I：
10.3788/IRLA201847.0718002
中图分类号：
学科分类号：
摘要：
Based on the fabricated and assembled lidar telescope, the structure of its primary mirror subsystem was presented. The effects on the primary mirror surface of the mismatch among the assembling points on the second supporting board and the malfunction of the flexible supporting foot on the first board were analyzed. The optomechanical analysis was conducted through establishing the finite element model of the primary mirror, the analyzing results were compared with the measured wave front map during the assembling. According to the analysis, the mismatch of the assembling points on the second baseplate was the main reason to deform the primary mirror surface. The primary mirror subsystem structure was optimized through integrated optomechanical analysis. And the expected root mean square deformation of the primary mirror should be decreased from 0.3 to 0.087, which meets the specification requirement of 0.15. © 2018, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
引用
收藏
相关论文
共 10 条
  • [1] Huang Q., Gao Q., Yu J., FEM analysis of ultra thin mirror supporting structure effect on surface deformation in gravity field, SPIE, 6148, (2006)
  • [2] Guo Y., Gu X., Yang S., Method to minimize the gravity sag of a facing ground 1 m flat mirror, SPIE, 6148, (2006)
  • [3] Lin Y.C., Chang S.T., Lee L.J., Et al., The gravity effect of optomechanical design on optical aberration for a remote sensing instrument, 34th Asian Conference on Remote Sensing, 5, pp. 4682-4686, (2013)
  • [4] Cheng Z., Liu F., Xun X., Opto-mechanical design and analysis of dual-band sharing aperture imaging system, Infrared & Laser Engineering, 44, 11, pp. 3366-3372, (2015)
  • [5] Stephen M.M., Shelly C., William B.H., Et al., Structural, thermal, optical and gravitational modelling for LISA, Classical and Quantum Gravity, 21, 5, (2004)
  • [6] Liu J., Li B., Sun D., Et al., Simulation analysis of on-orbit adjustment and compensation for large aperture optical system, International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 9280, 6, pp. 1045-1063, (2014)
  • [7] Zhao L., Shao Y., Summary of thermal control and thermal-optical analysis for space optical system, Spacecraft Recovery & Remote Sensing, E83-A, 5, pp. 835-841, (2001)
  • [8] Zhang Y., Fan J., Long G., Finite element simulation of thermal distortions of deformable mirror with laser irradiation, Infrared & Laser Engineering, 45, 11, (2016)
  • [9] Malacara D., Optical Shop Testing, (2007)
  • [10] Doyle K.B., Genberg V.L., Michels G.J., Integrated optomechanical analysis of adaptive optical systems, SPIE, (2004)
1