Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1976-06-30
1978-02-28
Smith, Alfred E.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250223B, 2091116, 356178, G01J 334, G01J 350
Patent
active
040769798
ABSTRACT:
Bottle color identification apparatus with a light beam passing through the bottle, in which the light beam passing through the bottle is supplied to a spectral decomposition arrangement which emits a signal characteristic of the bottle color.
A special application of the invention is the sorting of returnable bottles having the same size and shape but different colors.
REFERENCES:
patent: 3228520 (1966-01-01), Schneider
patent: 3351198 (1967-11-01), Wyman
patent: 3994591 (1976-11-01), Gibbard
Erdmann Jurgen
Fetzer Gunter
Walter Arthur
Erwin Sick Gesellschaft mit beschrankter Haftung Optik-Elektroni
Moore David K.
Smith Alfred E.
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