Optical scanner and bar code reader employing same

Details Optical scanner and bar code reader employing same Optical scanner and bar code reader employing same

1992-02-11

1998-10-27

Pitts, Harold

Registers

Coded record sensors

Particular sensor structure

235472, G06K 710

Patent

active

058280510

ABSTRACT:
An optical scanner is disclosed which, in one embodiment, uses a reflection surface on a vibrating element having at least two modes of vibration in at least two respective planes to produce an image scanning beam. Each of the modes has an associated resonant frequency and the two resonant frequencies of the vibrating element are not integer multiples of one another. In another embodiment, a reflective element is used to bounce a light beam from the reflection surface back to the reflection surface to increase the angle of scanning of a light beam. The reflective element may be semitransparent which allows the scanning beam to be detected through the range of scanning to ensure proper scanning. The optical scanner is particularly useful as a hand-held bar code scanner.

REFERENCES:
patent: 3666974 (1972-05-01), Dostal
patent: 3921045 (1975-11-01), Reich et al.
patent: 3998092 (1976-12-01), Maccabee
patent: 4213146 (1980-07-01), Maiman
patent: 4732440 (1988-03-01), Gadhok
patent: 4902083 (1990-02-01), Wells
patent: 4919500 (1990-04-01), Paulsen
patent: 5079641 (1992-01-01), Marino et al.
patent: 5132524 (1992-07-01), Singh
patent: 5168149 (1992-12-01), Dourkis
patent: 5170277 (1992-12-01), Bard
patent: 5245463 (1993-09-01), Goto
Derwent Publications Lrd., London, GB; AN 89-369379 & SU-A-1 485 188 (Tomsk Electrotec Wk) 7 Jun. 1989 *abstract*.
Derwent Publications Ltd., London, GB; AN 89-291939 & SU-A-1 448 328 (As Belo Tech Cybernetics) 30 Dec. 1988 *abstract*.

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