Research on processing technology of steep aspheric surface based on self-adaption polishing tool

Zhen-jun Bao; Heng Zhu; Zhi-gang Li; Ding-yao Yan

doi:10.1117/12.2512179

16 January 2019 Research on processing technology of steep aspheric surface based on self-adaption polishing tool

Zhen-jun Bao, Heng Zhu, Zhi-gang Li, Ding-yao Yan

Proceedings Volume 10838, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 108381S (2019) https://doi.org/10.1117/12.2512179
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

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.

Citation Download Citation

Zhen-jun Bao, Heng Zhu, Zhi-gang Li, and Ding-yao Yan "Research on processing technology of steep aspheric surface based on self-adaption polishing tool", Proc. SPIE 10838, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 108381S (16 January 2019); https://doi.org/10.1117/12.2512179

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KEYWORDS

Polishing

Aspheric lenses

Surface finishing

Error analysis

Analytical research

Liquids

Photovoltaics

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