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Proceedings Paper

Rapid online measurement method for radius of curvature of fine grinding optics based on tool setting system
Author(s): Lei Dai; Jian Zhang; Yongqiang Gu; Erlong Miao
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Paper Abstract

The radius of curvature (ROC) is one of the most important parameters of sphere optic components. In optic fine grinding process, radius of curvature accuracy requires up to 0.1%. We propose a method based on high precision CNC grinding machine, develop ROC online measurement method for fine grinding optics. This rapid method only takes few measurement points based on spiral route path, attaining enough accuracy and reduce the time cost, furthermore, can greatly reduce the repeated installation error. Analyzing the uncertainty sources that affect to the ROC measurement results, calculates the combined standard uncertainty 32.8 micron. Completed comparison experiments with CMM, the standard deviation of the experiment result are about 18 micron that approaches to CMM results.

Paper Details

Date Published: 28 October 2016
PDF: 10 pages
Proc. SPIE 9683, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 96830V (28 October 2016); doi: 10.1117/12.2245876
Show Author Affiliations
Lei Dai, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Jian Zhang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Yongqiang Gu, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Erlong Miao, Changchun Institute of Optics, Fine Mechanics and Physics (China)


Published in SPIE Proceedings Vol. 9683:
8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Wenhan Jiang; Li Yang; Oltmann Riemer; Shengyi Li; Yongjian Wan, Editor(s)

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