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Opto-mechanical Design of Monocrystalline Silicon Mirror for a Reflective Imaging Optical System

  • Liu, Xiaofeng (State Key Laboratory of Optics System Advanced Manufacturing Technology, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences) ;
  • Zhang, Xin (State Key Laboratory of Optics System Advanced Manufacturing Technology, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences) ;
  • Tian, Fuxiang (Space Optics Department II, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences)
  • Received : 2021.12.27
  • Accepted : 2022.04.19
  • Published : 2022.06.25

Abstract

Monocrystalline silicon has excellent properties, but it is difficult to design and manufacture silicon-based mirrors that can meet engineering applications because of its hard and brittle properties. This paper used monocrystalline silicon as the main mirror material in an imaging system to carry out a feasibility study. The lightweight design of the mirror is completed by the method of center support and edge cutting. The support structure of the mirror was designed to meet the conditions of wide temperature applications. Isight software was used to optimize the feasibility sample, and the optimized results are that the root mean square error of the mirror surface is 3.6 nm, the rigid body displacement of the mirror is 2.1 ㎛, and the angular displacement is 2.5" under the conditions of a temperature of ∆20 ℃ and a gravity load of 1 g. The optimized result show that the silicon-based mirror developed in this paper can meet the requirements of engineering applications. This research on silicon-based mirrors can provide guidance for the application of other silicon-based mirrors.

Keywords

Acknowledgement

The author(s) received no financial support for the research, authorship, and/or publication of this article.

References

  1. T. Newswander and B. Crowther, "Optical system material selection using performance indices in a simultaneous optimization approach," Proc. SPIE 8837, 742502 (2009).
  2. M. F. Ashby, "Materials and shape," Acta Metal. Mater. 39, 1025-1039 (1991). https://doi.org/10.1016/0956-7151(91)90189-8
  3. M. F. Ashby, "On the engineering properties of materials," Acta Metall. 37, 1273-1293 (1989). https://doi.org/10.1016/0001-6160(89)90158-2
  4. A. Ahmad, Handbook of Optomechanical Engineering, 1st ed. (CRC Press, USA, 1997), pp. 69-87 and 111-127.
  5. M. F. Ashby, Materials Selection in Mechanical Design, 3rd ed. (Pergamon Press, USA, 2005).
  6. W. P. Barnes, "Basic properties of metal optics," Opt. Eng. 16, 320-323 (1997).
  7. P. R. Yoder, Opto-Mechanical Systems Design, 3rd ed. (Taylor & Francis, UK, 2006).
  8. X. Liu, X. Tian, W. Zhang, B. Zhang, Z. Cheng, L. Fu, and Z. Wang, "Lightweight design of high volume SiC/Al composite mirror for remote camera," Optik 188, 64-70 (2019). https://doi.org/10.1016/j.ijleo.2019.05.040
  9. M. Cho, Y. Jun, C. Dribusch, J. Ryu, G. Poczulp, M. Liang, S. Lee, J.-Y. Han, U. Jeong, S. Kim, B. Moon, C.-H. Kim, Y. Kim, C. Park, B.-G. Park, I.-K. Moon, C.-H. Lee, W. Lee, H.-S. Kim, P. Gardner, R. Bernier, F. Groark, and H. Chiquito, "Design of the fast steering secondary mirror assembly for the Giant Magellan Telescope," Proc. SPIE 10706, 1070607 (2018).
  10. Y. Li , Z. Wang, W. Sha, S. He, and Q. Wu, "Flexibility calculation and analysis of Bipod reflector support structure," Opt. Precision Eng. 26, 1691-1697 (2019). https://doi.org/10.3788/ope.20182607.1691
  11. Y.-C. Chen, B.-K. Huang, Z.-T. You, C.-Y. Chan, and T.-M. Huang, "Optimization of lightweight structure and support bipod flexure for a space mirror," Appl. Opt. 55, 10382-10391 (2016). https://doi.org/10.1364/AO.55.010382
  12. B. Liu, W. Wang, Y.-J. Qu, X.-P. Li, X. Wang, and H. Zhao, "Design of an adjustable bipod flexure for a large-aperture mirror of a space camera," Appl. Opt. 57, 4048-4055 (2018). https://doi.org/10.1364/AO.57.004048
  13. H. Kihm and H.-S. Yang, "Design optimization of a 1-m lightweight mirror for a space telescope," Opt. Eng. 52, 091806 (2013). https://doi.org/10.1117/1.OE.52.9.091806