Registers – Coded record sensors – Particular sensor structure
Patent
1978-10-19
1980-09-23
Kilgore, Robert M.
Registers
Coded record sensors
Particular sensor structure
235467, 350 371, G06K 710, G02B 2717
Patent
active
042245095
ABSTRACT:
A holographic scanning system for scanning a bar code indicia is disclosed in which the light beam of a laser is split into two segments, each directed through a plurality of holograms mounted on a single rotating disk for generating a scanning pattern comprising a plurality of intersecting lines on a target area through which passes a label or object bearing a bar code indicia. The light reflected from the bar code indicia is picked up by an optical detector for use in reading the bar code. A second embodiment includes a rotating disk having mounted thereon two holograms each offset to the other which generates a semicircular scan pattern used in generating an X scan pattern on the target area.
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Pole & Wollenmann-"Holographic Laser Beam Deflector", Applied Optics, vol. 14, No. 4, Apr. 1975.
Sakurai et al-"Laser Scanner and its Application"-Conference: Ocean IEEE Intl. Conf. on Engineering in Ocean, Seattle, Wash., Sep. 25-28, 1973.
Beiser-"Laser Beam Information Scanning and Recording"-Annals of New York Academy of Sciences, vol. 267, pp. 384-410, 1976.
Cavender J. T.
Hawk Jr. Wilbert
Kilgore Robert M.
Lavin Richard W.
NCR Corporation
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