Joint of back-support in large aperture transport mirrors

X.J. Chen; W. K. Wu; C. C. Liu; B. X. Wang; M. Z. Zhu; X. H. Que

doi:10.1117/12.2245798

24 October 2016 Joint of back-support in large aperture transport mirrors

X.J. Chen, W. K. Wu, C. C. Liu, B. X. Wang, M. Z. Zhu, X. H. Que

Proceedings Volume 9682, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 96820J (2016) https://doi.org/10.1117/12.2245798
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China

Abstract

The wavefront distortion can directly influence on the optics quality of laser beam in ICF laser facility. The gravity is one of the major factors that cause the wavefront distortion. The back-support technology of the large aperture transport mirror has been developed to lessen the wavefront distortion caused by gravity. In the back-support technology, a joint structure between the mirror and the metal back-support has been developed. The requirement of joint is that the firm connection is realized with less wavefront distortion introduced. The adhesive structure and expanding mandrel structure have been analyzed and tested. The back-support of transport mirror in target area use the expanding mandrel for the reasons of the technics and fundamental frequency. The choice of material, the calculation force of clamp, the test of tensile, and the wavefront distortion analysis of transport mirror have been developed. The results show that the expanding mandrel can be used for the back-support of the large aperture transport mirror.

Citation Download Citation

X.J. Chen, W. K. Wu, C. C. Liu, B. X. Wang, M. Z. Zhu, and X. H. Que "Joint of back-support in large aperture transport mirrors", Proc. SPIE 9682, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 96820J (24 October 2016); https://doi.org/10.1117/12.2245798

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KEYWORDS

Mirrors

Wavefront distortions

Glasses

Adhesives

Metals

Mirror structures

Adaptive optics

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