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Proceedings Paper

Lithographic Plate Surface Inspection Using Fiber Optics
Author(s): Dennis H. Locke
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Paper Abstract

Zinc plates used in the lithographic industry must be free from scratches and meet a stringent specification on surface finish (scratches under .002 inches wide and surface variations in the range of 400 ± 20 grit). Mechanical Technology Incorporated has developed an automated industrial machine for inspection of these zinc plates as part of the on-line processing system for a zinc plate manufacture. This paper describes the application briefly and the inspection system in detail. The inspection system uses a non-contacting fiber optic system, optical-to-electronic conversion and signal processing electronics.

Paper Details

Date Published: 20 October 1975
PDF: 6 pages
Proc. SPIE 0060, Solving Quality Control and Reliability Problems with Optics, (20 October 1975); doi: 10.1117/12.954384
Show Author Affiliations
Dennis H. Locke, Mechanical Technology Incorporated (United States)


Published in SPIE Proceedings Vol. 0060:
Solving Quality Control and Reliability Problems with Optics
Juan J. Amodei; Harry N. Lowell, Editor(s)

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