Beam scanning type information readout device

Registers – Coded record sensors – Particular sensor structure

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235462, G02B 2612

Patent

active

046390707

ABSTRACT:
A beam scanning-type information readout device, and more particularly, a hand-carried beam scanning-type information readout device which can read information consisting of a bar-code-symbol applied to a product and which is low in cost, simply operated and very useful and has high readout accuracy. The beam scan type information readout device comprises a laser beam generator, an optical beam scanner which deflects and scans plural beams generated from the laser beam generator or deflects and scans a beam generated from the laser beam generator in plural directions, an optical beam detector which detects the beam reflected from the bar-code-symbol, and a case which functionally and physically accommodates the above-identified elements and also provides a grip portion for the operator.

REFERENCES:
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patent: 3614448 (1971-10-01), DiProx et al.
patent: 3972582 (1976-08-01), Oosaka et al.
patent: 4113343 (1978-09-01), Pole et al.
patent: 4224509 (1980-09-01), Cheng
patent: 4251798 (1981-02-01), Swartz et al.
Bryngdahl and Lee, Laser Beam Scanning Using Computer-Generated Holograms, Applied Optics, vol. 15, No. 1, Jan. 1976, pp. 183 to 194.
Sullivan, Alignment of Rotational Prisms, Applied Optics, vol. 11, No. 9, Sep. 1972, pp. 2028 to 2032.
Cindrich, Image Scanning by Rotation of a Hologram, Applied Optics, vol. 6, No. 9, Sep. 1967, pp. 1531 to 1534.

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