Research on geometric parameter measurement method using laser tracker in null lens asphere testing

	Research on geometric parameter measurement method using laser tracker in null lens asphere testing
	Chen, X. and R. Li
	2015
发表期刊	Zhongguo Jiguang/Chinese Journal of Lasers
卷号	42 期号:5
摘要	Traditional measuring methods of geometric parameters of asphere cannot meet the accuracy requirements as the aperture and vertex radius of curvature increase. In order to realize high accuracy measurement of geometric parameters, analysis and measuring methods are studied according to the null lens testing. The theoretical relationship between radius error and conic constant error is compared with the simulation results, then the requirements of measurement and data processing check method are determined. The basic principles of using laser tracker to measure geometric parameters are presented. The feature transformation, modeling and data processing methods are introduced. Experimental results show that the repeating precision of radius, conic constant and off-axis distance are 0.039 mm, 2.0510sup-5/sup and 0.055 mm, respectively. The high repeating accuracy indicates that this method is suitable for geometric parameters measurements, especially for large aperture and long radius aspheres. The absolute accuracy needs to be further analyzed. , 2015, Science Press. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56364
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Chen, X. and R. Li. Research on geometric parameter measurement method using laser tracker in null lens asphere testing[J]. Zhongguo Jiguang/Chinese Journal of Lasers,2015,42(5).
APA	Chen, X. and R. Li.(2015).Research on geometric parameter measurement method using laser tracker in null lens asphere testing.Zhongguo Jiguang/Chinese Journal of Lasers,42(5).
MLA	Chen, X. and R. Li."Research on geometric parameter measurement method using laser tracker in null lens asphere testing".Zhongguo Jiguang/Chinese Journal of Lasers 42.5(2015).

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