Computer moire deflectometry using the Talbot effect

Ionel Valentin Vlad; Dragos Popa; Ion G. Apostol

doi:10.1117/12.55795

1 March 1991 Computer moire deflectometry using the Talbot effect

Ionel Valentin Vlad, Dragos Popa, Ion G. Apostol

Author Affiliations +

Optical Engineering, Vol. 30, Issue 3, (March 1991). https://doi.org/10.1117/12.55795

Abstract

Computer moire deflectometry (CMD) using one grating, a TV camera, and a computer image processor (CIP) is developed. The TV camera is located in a Talbot plane, allowing the recording of a (disturbed) image of the grating with maximum contrast and without any other optical component. CIP is used for obtaining, processing, and automated interpretation of the fringes. Double-exposure, real-time, time-average, and phase-measuring methods of CMD for transparent and reflective objects are demonstrated.

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Ionel Valentin Vlad, Dragos Popa, and Ion G. Apostol "Computer moire deflectometry using the Talbot effect," Optical Engineering 30(3), (1 March 1991). https://doi.org/10.1117/12.55795

Published: 1 March 1991

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