CFRP variable curvature mirror being capable of generating a large variation of saggitus: prototype design and experimental demonstration

Hui Zhao; Xuewu Fan; Zhihai Pang; Guorui Ren; Wei Wang; Yongjie Xie; Zhen Ma; Yunfei Du; Yu Su; Jingxuan Wei; Xiaopeng Xie

doi:10.1117/12.2065554

5 November 2014 CFRP variable curvature mirror being capable of generating a large variation of saggitus: prototype design and experimental demonstration

Hui Zhao, Xuewu Fan, Zhihai Pang, Guorui Ren, Wei Wang, Yongjie Xie, Zhen Ma, Yunfei Du, Yu Su, Jingxuan Wei, Xiaopeng Xie

Author Affiliations +

Proceedings Volume 9272, Optical Design and Testing VI; 92720S (2014) https://doi.org/10.1117/12.2065554
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

The key to realize non-moving-element optical zooming lies in VCM (variable curvature mirror). In order to obtain a large optical magnification, VCM should be capable of providing a large center deflection and this requires that the mirror material should be robust enough, require less force to deform and have a high ultimate strength. In this paper, CFRP (carbon-fiber-reinforced-polymer) is selected as the mirror material and a prototype VCM has been fabricated. With diameter of 100mm, thickness of 2mm and initial curvature radius of 1740mm, this VCM can provide a center deflection approaching nearly 23um, which proves the feasibility of CFRP in constructing VCM. Compared with the work reported in [Proc. of SPIE, 8725, 87250W, 2013], the center deflection obtained here becomes even larger.

Citation Download Citation

Hui Zhao, Xuewu Fan, Zhihai Pang, Guorui Ren, Wei Wang, Yongjie Xie, Zhen Ma, Yunfei Du, Yu Su, Jingxuan Wei, and Xiaopeng Xie "CFRP variable curvature mirror being capable of generating a large variation of saggitus: prototype design and experimental demonstration", Proc. SPIE 9272, Optical Design and Testing VI, 92720S (5 November 2014); https://doi.org/10.1117/12.2065554

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