Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1988-10-26
1990-04-03
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356240, G01N 904
Patent
active
049142895
ABSTRACT:
An article inspection system especially useful for containers having threaded ends includes a video camera, digitizer and data processor operable to analyze a video image collected through a lens system. The lens system has several alternatives, in each case including a wide aspect object lens, wider than the end of the article being inspected, with a refracting and/or reflecting light ray path operable to produce a two dimensional image including both the end of the article and the sides of the article adjacent the end. The optics produce a distorted image in which the sides of the article appear folded upwardly into the two dimensional image such that a two dimensional data array adequately represents the image of the end and the adjacent sides.
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Chang Roger
Espenhahn Eric
Fitzmorris Tyce
Kline Dale W.
Nguyen Cap V.
Inex-Vistech Technologies Incorporated
Messinger Michael
Nelms David C.
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