Optics: measuring and testing – Inspection of flaws or impurities – Containers or enclosures
Patent
1992-04-27
1993-09-07
Rosenberger, Richard A.
Optics: measuring and testing
Inspection of flaws or impurities
Containers or enclosures
250223B, 356428, G01N 2141
Patent
active
052434001
ABSTRACT:
Apparatus for detecting commercial variations in transparent containers such as glass bottles that comprises a light source for directing diffused light energy through a container under inspection. A light sensing camera is positioned to receive an image of the light source transmitted through the container sidewall. A light control film is positioned adjacent to the light source between the light source and the container, and comprises a plurality of parallel slats spaced from each other so as to limit the angle from which the image of the light source can be viewed at the camera. Commercial variations are detected as a function of variations in light intensity received at the camera. In the preferred embodiment of the invention, first and second arrays of spaced parallel slats are positioned adjacent to the light source, with the slats of the first array being at an angle to the slats of the second array so as to project a moire fringe pattern through the container onto the camera.
REFERENCES:
patent: 2708857 (1955-05-01), Golding
patent: 3454759 (1969-07-01), Calhoun
patent: 3478218 (1969-11-01), Wuellner et al.
patent: 3943278 (1976-03-01), Ramsey, Jr.
patent: 3952150 (1976-04-01), Gerardin et al.
patent: 4376951 (1983-03-01), Miyazawa
patent: 4487322 (1984-12-01), Juvinall
patent: 4547067 (1985-10-01), Watanabe
patent: 4601395 (1986-07-01), Juvinall et al.
patent: 4606634 (1986-08-01), Bieringer
patent: 4610542 (1986-09-01), Ringlien
patent: 4697076 (1987-09-01), Yoshida
patent: 4924083 (1990-05-01), Ishikawa et al.
patent: 5004909 (1991-04-01), Fukuchi
Owens-Brockway Glass Container Inc.
Rosenberger Richard A.
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