Measurement of phase objects by simple means.
A printed fringe pattern is imaged by a CCD camera, whereas a phase object is placed in the ray path for imaging. The ray deflections distort the image of the pattern and are measured by evaluation of the image with the Fourier transform method.
Massig
J H
JH
Aalen University of Applied Science, Beethovenstrasse 1, D 73430 Aalen, Germany. juergen.massig@fh-aalen.de