Slim scan module with dual detectors

Details Slim scan module with dual detectors Slim scan module with dual detectors

1994-09-29

1996-09-03

Shepperd, John

Registers

Coded record sensors

Particular sensor structure

235472, 235454, 235467, G06K 710

Patent

active

055525920

ABSTRACT:
An optical scanning system for scanning indicia having portions of differing light reflectivity has a light emitter assembly, with a single light source, for emitting a beam of light to scan across the indicia. A first optical detector receives light reflected back from a first portion of the indicia. A second optical detector receives light reflected back from a second portion of the indicia. Each of the optical detectors includes a photodetector, a lens and an aperture which is disposed between the photodetector and lens.

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