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.
© 1990 Optical Society of America
Original Manuscript: February 12, 1990
Manuscript Accepted: August 6, 1990
Published: October 15, 1990
C. Joenathan and R. Torroba, "Simple electronic speckle-shearing-pattern interferometer," Opt. Lett. 15, 1159-1161 (1990)