Registers – Coded record sensors – Particular sensor structure
Patent
1991-12-19
1993-12-21
Pitts, Harold
Registers
Coded record sensors
Particular sensor structure
235472, G06K 710
Patent
active
052723259
ABSTRACT:
Scanning device for optically scanning symbol codes, such as bar codes, the device comprising a laser source for producing a scanning beam, a first lens for focussing the scanning beam, a detector for detecting light backscattered by the scanned symbol codes, a second lens for focussing the backscattered light onto the detector, first and second rotatable deflection means for both transmitting and deflecting the scanning beam so as to generate a scanning pattern, and drive means for rotating the deflection means, wherein both the first and the second deflection means comprise triangular prisms.
REFERENCES:
patent: 4850686 (1989-07-01), Morimoto et al.
"Thermal Imaging Systems" by J. M. Lloyd, Plenun Press, N.Y. 1979 pp. 316-320.
"High-Speed Rotating Optical Scanner" by D. H. McMurty, IBM Technical Disclosure Bulletin, vol. 17, No. 2, N.Y. 1974.
Opticon Sensors Europe B.V.
Pitts Harold
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