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Opt Lett. 1990 Oct 15;15(20):1159-61.

Simple electronic speckle-shearing-pattern interferometer.

Abstract

A simple electronic speckle-shearing-pattern interferometer, in which the image of an object is focused and sheared with a split lens onto a diffuser, is described. The sheared images on the diffuser are focused by a television camera and then digitized and processed in a host computer. The results obtained for two basic types of shearing, lateral and radial, are presented.

PMID:
19771028
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