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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 16 — Jun. 1, 2000
  • pp: 2670–2677

Null-screen testing of fast convex aspheric surfaces

Rufino Díaz-Uribe and Manuel Campos-García  »View Author Affiliations


Applied Optics, Vol. 39, Issue 16, pp. 2670-2677 (2000)
http://dx.doi.org/10.1364/AO.39.002670


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Abstract

A method for null-testing fast convex aspheric optical surfaces is presented. The method consists of using a cylindrical screen with a set of lines drawn on it in such a way that its image, which is formed by reflection on a perfect surface, yields a perfect square grid. Departures from this geometry are due to imperfections of the surface, allowing one to know if the surface is close to the design shape. Tests conducted with a full hemisphere and with the parabolic surface of a lens show the feasibility of the method. Numerical simulations show that it is possible to detect surface departures as small as 5 µm.

© 2000 Optical Society of America

OCIS Codes
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(220.4840) Optical design and fabrication : Testing
(350.4800) Other areas of optics : Optical standards and testing

History
Original Manuscript: September 10, 1999
Revised Manuscript: November 29, 1999
Published: June 1, 2000

Citation
Rufino Díaz-Uribe and Manuel Campos-García, "Null-screen testing of fast convex aspheric surfaces," Appl. Opt. 39, 2670-2677 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-16-2670

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