Electro-optical scanner module having oscillating lens

Details Electro-optical scanner module having oscillating lens Electro-optical scanner module having oscillating lens

1997-03-18

1999-02-02

Gross, Anita Pellman

Registers

Coded record sensors

Particular sensor structure

235472, 235454, G06K 710

Patent

active

058668942

ABSTRACT:
An optical scanner module for directing a light beam to scan an optically encoded symbol includes an optical element mounted for oscillatory motion to scan the light beam in one direction by a flex element capable of torsional flexure. This oscillatory motion is induced by the interacting magnetic fields established by a permanent magnet mounted to the flex element and an electromagnetic coil driven by an AC current. Bidirectional light beam scanning is achieved by mounting an assembly of the flex element, optical element and permanent magnet to one or more additional flex elements for oscillatory motion to scan the light beam in a second direction. This oscillatory motion is induced by the inclusion of an additional permanent magnet and/or electromagnetic coil.

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