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Proceedings Paper

Research on processing technology of steep aspheric surface based on self-adaption polishing tool
Author(s): Zhen-jun Bao; Heng Zhu; Zhi-gang Li; Ding-yao Yan
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Paper Abstract

In order to process full spatial frequency range error of steep aspheric surface, a self-adaption polishing tool was designed based on silly putty, and the principle of silly putty used on polishing tool to process middle and low spatial frequency errors was analyzed. The effect of silly putty’s viscosity on pressure was calculated by Newton’s law of viscosity. Stability of polishing pressure was compared between self-adaption polishing tool and pith lap through calculating polishing pressure. A 470mm aperture concave aspheric whit F#1.8 and 1.8mm departure from the best-fit radius is employed to operate experiment. It was verified that self-adaption polishing tool have the capability processing full frequency range error.

Paper Details

Date Published: 16 January 2019
PDF: 7 pages
Proc. SPIE 10838, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 108381S (16 January 2019); doi: 10.1117/12.2512179
Show Author Affiliations
Zhen-jun Bao, Chengdu Fine Optical Engineering Research Ctr. (China)
Heng Zhu, Chengdu Fine Optical Engineering Research Ctr. (China)
Zhi-gang Li, Chengdu Fine Optical Engineering Research Ctr. (China)
Ding-yao Yan, Chengdu Fine Optical Engineering Research Ctr. (China)


Published in SPIE Proceedings Vol. 10838:
9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Xiong Li; William T. Plummer; Bin Fan; Mingbo Pu; Yongjian Wan; Xiangang Luo, Editor(s)

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