Design and development of large SiC mirror for spaceborne application

Il Kweon Moon; Ho-Soon Yang; Yun Woo Lee

doi:10.1117/12.2529058

30 August 2019 Design and development of large SiC mirror for spaceborne application

Il Kweon Moon, Ho-Soon Yang, Yun Woo Lee

Proceedings Volume 11100, Optomechanical Engineering 2019; 111000J (2019) https://doi.org/10.1117/12.2529058
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

Design and development of large SiC mirror has been conducted. By using the finite element analysis program NX NASTRAN we calculated the opto-mechanical performance of mirror and its support system under various design loads including gravity, temperature and dynamic loads. The optical performance has been analyzed by using Zernike polynomials based on corrected RMS surface error. We also optimized a bi-pod type flexure bonded at the backside of the mirror with proper strength under environment of space-borne application. The prototype SiC mirror has been generated with proper opto-mechanical strength and good optical performance. Detailed development process of manufacturing of the mirror with grinding, polishing, bonding and environment test will be discussed herein.

Citation Download Citation

Il Kweon Moon, Ho-Soon Yang, and Yun Woo Lee "Design and development of large SiC mirror for spaceborne application", Proc. SPIE 11100, Optomechanical Engineering 2019, 111000J (30 August 2019); https://doi.org/10.1117/12.2529058

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