Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1992-12-22
1993-10-26
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356240, G01N 2132, B07C 5342
Patent
active
052568717
ABSTRACT:
An inspection machine for inspecting the profile of a vertically standing glass bottle comprising a conveyor for horizontally displacing a vertically standing glass container through an inspection location, a pair of diffused light sources located behind the conveyor for directing beams of light horizontally at a container located at the inspection location, the beams being sufficiently large so that the light beams will pass around the entire profile of a container located at the inspection station, a mirror pair located in front of the conveyor for receiving each of the light beams and redirecting the beam rearwardly, a reflecting prism having a pair of angularly related reflecting surfaces, a two-dimensional camera having an imaging surface, a pair of mirrors for receiving the beams redirected from each of the mirror pairs and redirecting the received beams to reflect off a corresponding one of the prism reflecting surfaces onto a corresponding half of the imaging surface, means for evaluating the profile of both container images on the imaging surface, each of the mirrors receiving the light beam at an angle of no more than about 45.degree..
REFERENCES:
patent: 4025201 (1977-05-01), Deane
patent: 4280624 (1981-07-01), Ford
patent: 4367405 (1983-01-01), Ford
patent: 4509081 (1985-04-01), Peyton et al.
patent: 4625107 (1986-11-01), Planke
patent: 4636635 (1987-01-01), Kronseder
Emhart Glass Machinery Investments Inc.
Messinger Michael
Nelms David C.
Smith Spencer T.
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