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Proceedings Paper

Quantitative measurement of Φ140mm F/2 parabolic surface with Ronchi grating test method
Author(s): Bai-ping Lei; Fan Wu; Chen-bo Zhou
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Paper Abstract

Ronchi grating test has been used widely to test optical surfaces in a qualitative way since it was contrived, while rarely to test the parabolic surface in a quantitative way. This paper discusses the application of Ronchi grating test to optical aspheric surfaces in a quantitative way on the base of self-made software which includes Ronchi null grating design, collection of Ronchi graph, data procession and so on. The whole system has been used to test a concave parabolic mirror with diameter 140mm and F number 2, and the result is approximately the same as that of the outcome of interferometer. The analysis software and test method establish a good foundation for the coming of quantitative measurement of big error of large-aperture aspheric surfaces.

Paper Details

Date Published: 20 May 2009
PDF: 4 pages
Proc. SPIE 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 72832O (20 May 2009); doi: 10.1117/12.828721
Show Author Affiliations
Bai-ping Lei, Institute of Optics and Electronics (China)
Graduate School of the Chinese Academy of Sciences (China)
Fan Wu, Institute of Optics and Electronics (China)
Chen-bo Zhou, Yantai Univ. (China)


Published in SPIE Proceedings Vol. 7283:
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; James C. Wyant; Robert A. Smythe; Hexin Wang, Editor(s)

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