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Optical Engineering

Shadow And Projection Moire Techniques For Absolute Or Relative Mapping Of Surface Shapes
Author(s): L. Pirodda
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Paper Abstract

Optical methods of shadow and projection moire are particularly suitable for mapping the absolute shape of a given surface or the difference between that surface and a master one or its accidental shape change. Essentially, product moire fringes are obtained on an image plane where a "filter" grating analyzes the image of the test surface which has been "coded" by projecting a master grating on it. The article resumes the theory in a unifying approach and presents a comprehensive list of applications.

Paper Details

Date Published: 1 August 1982
PDF: 10 pages
Opt. Eng. 21(4) doi: 10.1117/12.7972959
Published in: Optical Engineering Volume 21, Issue 4
Show Author Affiliations
L. Pirodda, University of Cagliari (Italy)


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