20 October 1975 Lithographic Plate Surface Inspection Using Fiber Optics
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Proceedings Volume 0060, Solving Quality Control and Reliability Problems with Optics; (1975) https://doi.org/10.1117/12.954384
Event: Solving Quality Control and Reliability Problems with Optics, 1975, San Diego, United States
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.
© (1975) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dennis H. Locke, Dennis H. Locke, } "Lithographic Plate Surface Inspection Using Fiber Optics", Proc. SPIE 0060, Solving Quality Control and Reliability Problems with Optics, (20 October 1975); doi: 10.1117/12.954384; https://doi.org/10.1117/12.954384
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