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Proceedings Paper

Using an automatic video inspection system to guarantee in-line film registration
Author(s): William J. Burke III
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Paper Abstract

The alignment of incoming material is one of the most crucial steps in the smooth and even flow of in-line processing systems for many applications. Examples include printed circuit board manufacturing in wave solder body alignment of automobiles for welding quarts or glass substrates for the production of diffraction gratings or lenses and fiber and cable extrusions. Many of these process flow environments use lasers or optical systems to insure accurate alignment immediately before the next processing step occurs. Another prime application involves using optical measuring to align film before deposition on the acetate film used as a substrate. A non-contact three-dimensional inspection system can be used for accurate alignment of the incoming film as well as providing correction constants to the deposition and/or film handling system. Along with the mechanical alignment the dimensional measurement system can find or recognize features or datums on the film to optimize positional alignment within the deposition area rather than only aligning to the relatively coarse position obtained by the using the film (substrate) edges and frame to frame markers. Interfacing the vision system to the external film handling system will be discussed along with the overall system design goals criteria and changes made during to empirical testing.

Paper Details

Date Published: 1 August 1990
PDF: 5 pages
Proc. SPIE 1266, In-Process Optical Measurements and Industrial Methods, (1 August 1990); doi: 10.1117/12.20258
Show Author Affiliations
William J. Burke III, Videometrix (United States)

Published in SPIE Proceedings Vol. 1266:
In-Process Optical Measurements and Industrial Methods
H. A. Macleod; Peter Langenbeck, Editor(s)

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