Registers – Coded record sensors – Particular sensor structure
Patent
1994-03-17
1997-06-17
Hajec, Donald T.
Registers
Coded record sensors
Particular sensor structure
235462, G06K 710
Patent
active
056400012
ABSTRACT:
A hand-held bar code reader includes one or more photosensor arrays which provide a plurality of image sensor portions arranged for receiving images of a bar code through a plurality of selectively usable paths of 5 different focal lengths which are defined by a passive optical system. A distance measuring system controls the sensor portion which is used to control the focal length. In one embodiment, the bar code image is projected to a plurality of receiving mirror surfaces, thence to a plurality of additional mirror surfaces and thence through lens barrels to mirrors which project the 10 images to photosensor arrays. In another, the bar code image is projected to a plurality of receiving mirror surfaces, thence to an additional mirror surface, and thence through a single lens barrel to a mirror which projects the images to a photosensor array.
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patent: 4472742 (1984-09-01), Hasegawa et al.
patent: 4531157 (1985-07-01), Ishikawa
patent: 4621292 (1986-11-01), Hirao et al.
patent: 5223701 (1993-06-01), Batterman et al.
patent: 5308966 (1994-05-01), Danielson et al.
Danielson Arvin D.
Durbin Dennis A.
Hajec Donald T.
Le Thien Minh
Norand Technology Corporation
Suiter Sean Patrick
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