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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 32, Iss. 25 — Sep. 1, 1993
  • pp: 4690–4697

Profile testing of spherical surfaces by laser deflectometry

Martha Rosete-Aguilar and Rufino Díaz-Uribe  »View Author Affiliations


Applied Optics, Vol. 32, Issue 25, pp. 4690-4697 (1993)
http://dx.doi.org/10.1364/AO.32.004690


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Abstract

A method for testing the profiles of spherical surfaces is presented. It consists of measuring the transversal deflection of a reflected He–Ne laser beam when the surface is rotated around an axis located near its center of curvature. A set of formulas that enables us to calculate the shape of the profile as well as the decentering of the rotation axis is obtained. By using a simple experimental setup, we found the differences between the experimental profile with respect to the ideal one; the accuracy that was obtained is ~3 μm. The method may be improved and is useful for convex as well as for concave surfaces. With minor modifications it is possible to test large surfaces and weak aspherics.

© 1993 Optical Society of America

History
Original Manuscript: December 26, 1991
Published: September 1, 1993

Citation
Martha Rosete-Aguilar and Rufino Díaz-Uribe, "Profile testing of spherical surfaces by laser deflectometry," Appl. Opt. 32, 4690-4697 (1993)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-32-25-4690

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