Mirrors fabricated with CFRP composites by replication technology

XiaoGe Wu; YongJie Wang; Liang Xu; Zhen Ma

doi:10.1117/12.2504928

11 January 2019 Mirrors fabricated with CFRP composites by replication technology

XiaoGe Wu, YongJie Wang, Liang Xu, Zhen Ma

Proceedings Volume 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 1083709 (2019) https://doi.org/10.1117/12.2504928
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

To realize ultra-lightweight ratio, mirrors were fabricated with CFRP (carbon fiber reinforced plastic composites) by replication technology. The replication technology was aimed to improve surface accuracy. Though replication technique, the surface accuracy was improved to 0.098 λ (λ=632.8nm, RMS), and the roughness of 1.9 nm (Ra) can be achieved. The CFRP mirror presented poor dimension stability, the surface accuracy increased gradually in air. In order to solve this problem, a polymer coating was carried on mirror surface. The polymer coating exhibited better dimension stability, the surface accuracy can be maintained under 0.15 λ for more than 200 days.

Citation Download Citation

XiaoGe Wu, YongJie Wang, Liang Xu, and Zhen Ma "Mirrors fabricated with CFRP composites by replication technology", Proc. SPIE 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 1083709 (11 January 2019); https://doi.org/10.1117/12.2504928

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