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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 8, Iss. 5 — May. 1, 1969
  • pp: 935–939

Moiré Gauging Using Optical Interference Patterns

Robert E. Brooks and Lee O. Heflinger  »View Author Affiliations


Applied Optics, Vol. 8, Issue 5, pp. 935-939 (1969)
http://dx.doi.org/10.1364/AO.8.000935


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Abstract

This paper describes a moiré technique for gauging surface deformations of an object or differences in the surface configuration of two similar objects. A grid pattern is generated on the object by illuminating it with a laser interference pattern, and a master negative is made by photographing the illuminated object with a view camera. With the negative occupying its original position, the moiré pattern corresponding to changes in the object can be observed in real time by viewing the image of the deformed or second object through the negative. The technique is noncontacting and quantitative. It is useful with objects of any size, and its sensitivity can be easily adjusted to suit the application.

© 1969 Optical Society of America

History
Original Manuscript: November 12, 1968
Published: May 1, 1969

Citation
Robert E. Brooks and Lee O. Heflinger, "Moiré Gauging Using Optical Interference Patterns," Appl. Opt. 8, 935-939 (1969)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-8-5-935

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