Illumination apparatus for optical readers

Details Illumination apparatus for optical readers Illumination apparatus for optical readers

1995-03-30

1997-04-22

Hajec, Donald T.

Registers

Coded record sensors

Particular sensor structure

235472, G06K 710

Patent

active

056231377

ABSTRACT:
An apparatus for illuminating an indicia in a sensing region of an object plane. A housing has a median longitudinal vertical plane and a horizontal scanning plane. A reflector for reflecting light directed thereagainst toward the sensing region has a first approximately curvilinear profile in a plane parallel to the scanning plane, and a second approximately curvilinear profile in a plane parallel to the median longitudinal plane. The central portion of the reflector defines an opening whereby light from the sensing may return in generally the same plane as light directed toward the sensing region.

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patent: 5354977 (1994-10-01), Roustaei
patent: 5449892 (1995-09-01), Yamada
patent: 5468950 (1995-11-01), Hanson

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