Optics: measuring and testing – Inspection of flaws or impurities – Having predetermined light transmission regions
Patent
1995-05-05
1996-10-08
Gonzalez, Frank
Optics: measuring and testing
Inspection of flaws or impurities
Having predetermined light transmission regions
356240, 250223B, 250223R, 209585, 209577, 209588, G01N 2100, G01N90400, B07C 500
Patent
active
055637000
ABSTRACT:
An apparatus and method for detecting the presence material irregularities and holes in thin walled opaque objects such as can ends having a generally centrally disposed integral rivet formed therein. A radiation source is focused so that a substantial portion of emitted radiation is concentrated on the portion of a can end in which the rivet is formed.
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An Shu
Fletcher Jack
Holt Steven W.
Aluminum Company of America
Eisenberg Jason D.
Gonzalez Frank
Trempus Thomas R.
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