Laser scanning system and scanning method for reading 1-D and 2-

Details Laser scanning system and scanning method for reading 1-D and 2- Laser scanning system and scanning method for reading 1-D and 2-

1997-06-10

1999-11-23

Hajec, Donald

Registers

Coded record sensors

Particular sensor structure

G06K 710

Patent

active

059885084

ABSTRACT:
A reader for electro-optical reading bar code symbols of reduced height, comprises a light source for generating a light beam along an optical path; a pair of oscillatable reflectors in the optical path; a first drive for oscillating the reflectors at different frequencies that are a ratio of about 10%-30% apart to create a scan pattern; and a second drive for rotating the scan pattern about an axis that is generally orthogonal to the scan pattern.

REFERENCES:
patent: 4039246 (1977-08-01), Voigt
patent: 4871904 (1989-10-01), Metlitsky
patent: 5059779 (1991-10-01), Krichever et al.
patent: 5149949 (1992-09-01), Wike, Jr.
patent: 5187612 (1993-02-01), Plesko

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