Generation Of Pseudo Fizeau Fringes On Large Objects Using Stereo Pairs

V. P. Bennett; N. Balasubramanian

doi:10.1117/12.7971706

1 June 1974 Generation Of Pseudo Fizeau Fringes On Large Objects Using Stereo Pairs

V. P. Bennett, N. Balasubramanian

Author Affiliations +

Optical Engineering, Vol. 13, Issue 3, 133279 (June 1974). https://doi.org/10.1117/12.7971706

Abstract

A simple method of generating pseudo Fizeau fringes on large objects with deformations of the order of a few centimeters is described and demonstrated. A stereo pair of photographs of the object are placed one in each arm of a Mach-Zehnder interferometer and are then imaged onto a common image plane. A knife edge placed in the back focal plane of the imaging lens deforms the straight line fringes of the Mach-Zehnder interferometer to provide relief information of the object. The functional form of the deformed fringes is shown to be equivalent to Fizeau fringes.

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V. P. Bennett and N. Balasubramanian "Generation Of Pseudo Fizeau Fringes On Large Objects Using Stereo Pairs," Optical Engineering 13(3), 133279 (1 June 1974). https://doi.org/10.1117/12.7971706

Published: 1 June 1974

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