The optical testing methods have gained a considerable upswing due to the development of the laser. Despite all the progress made, however, there are still problems which cannot be neglected concerning operation and application. The current development is either enlarging the spectrum of the application or facilitating the operation. An interferometer for industrial application purposes is shown. Developments in the field of holography and image processing in connection with optical testing techniques are to be seen. A new kind of laser measuring system for non-contactive measurement of distance and thickness will be introduced. The industrial applicability of the developments is discussed.

Date Published: 16 July 1986
PDF: 8 pages
Proc. SPIE 0599, Optics in Engineering Measurement, (16 July 1986); doi: 10.1117/12.952398

Published in SPIE Proceedings Vol. 0599:
Optics in Engineering Measurement
William F. Fagan, Editor(s)