Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1994-10-19
1996-01-23
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356240, 209526, G01N 2190
Patent
active
054866928
ABSTRACT:
An inspection machine for inspecting a vertically standing container comprising a conveyor for horizontally displacing a vertically standing glass container through spaced inspection locations, a first pair of diffused light sources located behind the conveyor for forwardly directing angularly related beams of light substantially horizontally at a container located at one of the inspection locations, the beams being sufficiently large so that the light beams will pass around the entire profile of a container located at the first inspection location, a first two dimensional camera having an imaging surface on the other side of the conveyor, and first means for redirecting the forwardly directed beams to corresponding halves of the imaging surface, a second pair of diffused light sources located in front of the conveyor for rearwardly directing angularly related beams of light substantially horizontally at a container located at the other one of the inspection locations, the beams being sufficiently large so that the light beams will pass around the entire profile of a container located at the other inspection location, a second two dimensional camera having an imaging surface on the side of the conveyor opposite to the second pair of diffused light sources, second means for redirecting the rearwardly directed light beams to corresponding halves of the imaging surface of the second two dimensional camera, and means for analyzing the sidewall image in each half of each image sensor.
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Emhart Glass Machinery Investments Inc.
Lee John R.
Smith Spencer T.
Westin Edward P.
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