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Proceedings Paper

Applications of a novel general removal function model in the CCOS
Author(s): Weimin Zheng; Tianning Cao; Xiuzhong Zhang
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Paper Abstract

Removal function models play an important role in the computer simulation and the practical Computer Controlled Optical Surfacing. This paper presents a novel general model, which can simulate the removal function of a grinding (polishing) tool with any configuration, as long as the tool runs in dual rotation mode. The removal functions of a dual rotation tool with a single pad or with two pads were calculated by this general model and by the existing single pad and two-pad removal function models, respectively and the simulation results coincide with each other. The grinding & polishing experiments also verify this general model. A set of optimized seven-pad flexible grinding (polishing) tool was developed according to this model. A template function model, which simplified the two-dimension parallel circles tracks programming problem into a one-dimension problem was derived from this model. A Φ300 mm, F5.9 focus lens, with 46 μm aspheric degree was successfully fabricated according to the programming results after 8 hours 43 minutes fine grinding & 15 hours polishing.

Paper Details

Date Published: 6 October 2000
PDF: 8 pages
Proc. SPIE 4231, Advanced Optical Manufacturing and Testing Technology 2000, (6 October 2000); doi: 10.1117/12.402810
Show Author Affiliations
Weimin Zheng, Shanghai Astronomical Observatory (China)
Tianning Cao, Zhejiang Univ. (China)
Xiuzhong Zhang, Shanghai Astronomical Observatory (China)


Published in SPIE Proceedings Vol. 4231:
Advanced Optical Manufacturing and Testing Technology 2000
Li Yang; Harvey M. Pollicove; Qiming Xin; James C. Wyant, Editor(s)

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