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Proceedings Paper

Noncontact dimensional measurement system using holographic scanning
Author(s): Stephen F. Sagan; Robert S. Rosso; David M. Rowe
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Paper Abstract

Holographic scanning systems have been used for years in point-of-sale bar code scanners and other low resolution applications. These simple scanning systems could not successfully provide the accuracy and precision required to measure, inspect and control the production of today's high tech optical fibers, medical extrusions and electrical cables. A new class of instruments for the precision measurement of industrial processes has been created by the development of systems with a unique combination of holographic optical elements that can compensate for the wavelength drift in laser diodes, the application of proprietary post-processing algorithms, and the advancements in replication methods to fabricate low cost holographic scanning discs. These systems have improved upon the performance of traditional polygon mirror scanners. This paper presents the optical configuration and design features that have been incorporated into a holographic scanning inspection system that provides higher productivity, increased product quality and lower production costs for many manufacturers.

Paper Details

Date Published: 7 July 1997
PDF: 8 pages
Proc. SPIE 3131, Optical Scanning Systems: Design and Applications, (7 July 1997); doi: 10.1117/12.277752
Show Author Affiliations
Stephen F. Sagan, Optical Research Associates (United States)
Robert S. Rosso, Target Systems, Inc. (United States)
David M. Rowe, Holographix, Inc. (United States)


Published in SPIE Proceedings Vol. 3131:
Optical Scanning Systems: Design and Applications
Leo Beiser; Stephen F. Sagan, Editor(s)

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