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Proceedings Paper

A New Method For Measuring The Form Of Diamond Turned Surfaces
Author(s): Haiming Wang; Hangyu Mi
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Paper Abstract

The Applied OPtics Laboratory currently imPorted a diamond turning lathe MSG-325. It is known that the lathe can cut workPieces with very high accuracy ( figure accuracy 0.00002 inch, surface finish 0.8 microinch Ra ). General method for measuring the sur-face form is interferometr9, but it needs a reference surface. For the asPheric surface and the surface with large aperture, it is very difficult to get a reference surface. We set uP a very simPle laser-CCD light diffraction analysis system. BY retrieving the Phase of diffraction light, we get the surface form. This method can be used to measure the asPheric surface without demanding of the refrence surface, and can be used to control the surface form on Production Process.

Paper Details

Date Published: 11 May 1988
PDF: 6 pages
Proc. SPIE 0900, Imaging Applications in the Work World, (11 May 1988); doi: 10.1117/12.944690
Show Author Affiliations
Haiming Wang, Academia Sinica (China)
Hangyu Mi, Academia Sinica (China)

Published in SPIE Proceedings Vol. 0900:
Imaging Applications in the Work World
Ronald J. Clouthier; Gary K. Starkweather; Andrew G. Tescher; Thomas L. Vogelsong, Editor(s)

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