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Proceedings Paper

A novel aspheric surface testing method using part-compensating lens
Author(s): Huilan Liu; Qun Hao; Qiudong Zhu; Dingguo Sha; Chunxi Zhang
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Paper Abstract

In contrast to null compensator method in aspheric surface testing, a novel method is presented that uses part-compensating lens and digital moire phase-shift interferometry. Researches are made on measurement principle, design method of part-compensating lens and calibrating lens, and calibrating method. Experiment is made by using spherical surface to simulate aspheric surface testing. The measurement precision is that the P-V value of the testing error can be λ/10. Using the method presented in this paper, the structure of compensator is much simpler than that of null compensator. And one part-compensating lens can be used to test different aspheric surfaces in certain range.

Paper Details

Date Published: 10 February 2005
PDF: 6 pages
Proc. SPIE 5638, Optical Design and Testing II, (10 February 2005); doi: 10.1117/12.578624
Show Author Affiliations
Huilan Liu, Beihang Univ. (China)
Qun Hao, Beijing Institute of Technology (China)
Qiudong Zhu, Beijing Institute of Technology (China)
Dingguo Sha, Beijing Institute of Technology (China)
Chunxi Zhang, Beihang Univ. (China)

Published in SPIE Proceedings Vol. 5638:
Optical Design and Testing II
Yongtian Wang; Zhicheng Weng; Shenghua Ye; Jose M. Sasian, Editor(s)

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