Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1992-06-19
1993-08-03
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356240, G01N 904
Patent
active
052331865
ABSTRACT:
Apparatus for detecting commercial variations in transparent containers such as glass bottles that includes a conveyor for directing containers along a path through an inspection station, and a light source disposed on one side of the path for directing light energy through a container at the inspection station. A light sensing camera is positioned on the same side of the conveyor path, and a retroreflector is positioned on the opposing side of the conveyor path opposite the light source and camera for reflecting light energy transmitted from the source through a container at the station back through the container onto the camera. Commercial variations are detected as a function of variations in intensity of light energy received at the camera.
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Nelms David C.
Owens-Brockway Glass Container Inc.
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