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Proceedings Paper

Measurement of optical surfaces with knife edge method
Author(s): Hongwei Jing; Bin Fan; Shibin Wu; Fan Wu; Tianquan Fan
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Paper Abstract

A method that upgrades the knife edge tester from a qualitative tester to a quantitative one was introduced in this paper. Moving the knife edge tester back and forth in the focus of the mirror, the variations at the center of curverture of annuluses of the mirror can be got. Using mathematic method, these variations of the center of curverture can be calculated as the deviations of real surface to perfect surface. An experiment has been done by using the method. The calculated deviations of the optical surface was compared with the results measured by Form Talysurf PGI 1240 from Taylor Hobson. Two-measurement results show resemblance.

Paper Details

Date Published: 17 January 2008
PDF: 5 pages
Proc. SPIE 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 67235L (17 January 2008); doi: 10.1117/12.783786
Show Author Affiliations
Hongwei Jing, Institute of Optics and Electronics (China)
Bin Fan, Institute of Optics and Electronics (China)
Shibin Wu, Institute of Optics and Electronics (China)
Fan Wu, Institute of Optics and Electronics (China)
Tianquan Fan, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 6723:
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Junhua Pan; James C. Wyant; Hexin Wang, Editor(s)

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