Coherent Optical Processing of Two-Exposure Photographic Images of Projected Fringes

摘要

A method for the recording and optical processing of two-exposure photographic images of projected fringes is proposed and experimentally tested, which makes possible an arbitrary control of the width and orientation of interference contour lines. Using this method at the stage of optical processing one can visualize both changes in the microrelief of the surface under study and the relief itself, which considerably increases the information content of the studies.