Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1994-07-01
1996-01-09
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356411, 209580, G01J 350, H01J 516, H01J 4014
Patent
active
054830575
ABSTRACT:
Apparatus for measuring the color of glass, particularly pieces of broken glass relies upon simultaneously measuring the glass transmission in different spectral regions. The glass pieces travel along a conveying path between a light source and a light sensor containing a plural number of optical filters and groups of photoelectric detectors. The groups of photoelectric detectors are disposed at an end face of respective substantially cylindrical tubes. Tube axes enclose an angle and intersect in a conveying plane defined by the conveying path. The optical filters have different spectral transmission regions. Optical lens systems are retained intermediate the respective groups of photoelectric detectors and an opposite end face of the respective tubes. Each optical lens system images the conveying plane at the associated group of photoelectric detectors.
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Gross Michael
Kordulla Hans
Schmidt Dietmar
Stelte Norbert
Bodenseewerk Geratetechnik GmbH
Caldgero Stephen
Westin Edward P.
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