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Proceedings Paper

Study on fine annealing process of the large-aperture K9 glasses
Author(s): Wang Gang; Liu Yi Bin; Li Li Zheng; Zhang Hui; Xie Lei; Qiu Fu Min; Ma Ping; Yan Ding Yao
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Paper Abstract

Study on fine annealing process of the large-aperture K9 glasses was carried out in the report. The process parameters of glass placed way, fan speed and design of the cavity for keeping temperature uniformity were attained. By the fine annealing experiment, the stress distribution was improved evidently. The stress changed from Irregular distribution to consistency symmetric distribution and the stress max was reduced. The surface profile accuracy of the large-aperture K9 glasses was controlled steadily during CNC polishing.

Paper Details

Date Published: 19 October 2016
PDF: 8 pages
Proc. SPIE 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation, 101541O (19 October 2016); doi: 10.1117/12.2247013
Show Author Affiliations
Wang Gang, Chengdu Fine Optical Engineering Research Ctr. (China)
Liu Yi Bin, Chengdu Fine Optical Engineering Research Ctr. (China)
Li Li Zheng, Tsinghua Univ. (China)
Zhang Hui, Tsinghua Univ. (China)
Xie Lei, Chengdu Fine Optical Engineering Research Ctr. (China)
Qiu Fu Min, Chengdu Fine Optical Engineering Research Ctr. (China)
Ma Ping, Chengdu Fine Optical Engineering Research Ctr. (China)
Yan Ding Yao, Chengdu Fine Optical Engineering Research Ctr. (China)


Published in SPIE Proceedings Vol. 10154:
Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation
Min Xu; Ji Yang, Editor(s)

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