Mu Yongji, Wan Yuan, Liu Jiqiao, Hou Xia, Chen Weibiao. Optomechanical analysis and optimization of spaceborne lidar telescope primary mirror[J]. Infrared and Laser Engineering, 2018, 47(7): 718002-0718002(7). doi: 10.3788/IRLA201847.0718002
| Citation:
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Mu Yongji, Wan Yuan, Liu Jiqiao, Hou Xia, Chen Weibiao. Optomechanical analysis and optimization of spaceborne lidar telescope primary mirror[J]. Infrared and Laser Engineering, 2018, 47(7): 718002-0718002(7). doi: 10.3788/IRLA201847.0718002
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Optomechanical analysis and optimization of spaceborne lidar telescope primary mirror
- 1.
Key Laboratory of Space Laser Communication and Detection Technology,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;
- 2.
University of Chinese Academy of Sciences,Beijing 100049,China
- Received Date: 2018-02-05
- Rev Recd Date:
2018-03-03
- Publish Date:
2018-07-25
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Abstract
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.
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