Abstract
A speckle shear interferometer is presented which can be used to yield lateral, radial, rotational, and inversion shear fringes in real time in conjunction with a digital image processing system. A modification of the optical arrangement yields reversal or folding shear as well. Experiments are conducted on an edge-clamped diaphragm with concentrated load. Unit contrast fringes have been obtained by resorting to nonlinear processing techniques such as level slicing. The results are presented for various types of shear.
© 1988 Optical Society of America
Full Article | PDF ArticleMore Like This
Suezou Nakadate, Toyohiko Yatagai, and Hiroyoshi Saito
Appl. Opt. 19(24) 4241-4246 (1980)
Mette Owner-Petersen
Appl. Opt. 30(19) 2730-2738 (1991)
R. K. Mohanty, C. Joenathan, and Rajpal S. Sirohi
Appl. Opt. 24(18) 3106-3109 (1985)