Finite element analysis on mounting configurations for large-aperture optical element

R. F. Su; L. H. Lu; Y. C. Liang; Y. Z. Cao

doi:10.1117/12.917531

15 November 2011 Finite element analysis on mounting configurations for large-aperture optical element

R. F. Su, L. H. Lu, Y. C. Liang, Y. Z. Cao

Proceedings Volume 8335, 2012 International Workshop on Image Processing and Optical Engineering; 83351I (2011) https://doi.org/10.1117/12.917531
Event: 2012 International Workshop on Image Processing and Optical Engineering, 2012, Harbin, China

Abstract

Large-aperture optical element is widely used in optical engineering and reasonable mounting results in higher performance. In order to reduce the gravitational sag induced by its own weight, three types of mounting configurations were proposed and simulated by finite element method, and the effects of axial loads and non-uniformity and asymmetry were analyzed in the same time. The results showed that full periphery mounting configuration was the optimal mounting configuration and the optimal axial load was 0.085MPa with the corresponding maximum distortion was 2.32μm, and the effects of non-uniformity and asymmetry on distortion were small.

Citation Download Citation

R. F. Su, L. H. Lu, Y. C. Liang, and Y. Z. Cao "Finite element analysis on mounting configurations for large-aperture optical element", Proc. SPIE 8335, 2012 International Workshop on Image Processing and Optical Engineering, 83351I (15 November 2011); https://doi.org/10.1117/12.917531

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