Registers – Coded record sensors – Particular sensor structure
Patent
1990-11-19
1993-03-09
Shepperd, John W.
Registers
Coded record sensors
Particular sensor structure
235472, G06K 710
Patent
active
051928566
ABSTRACT:
A device for reading and interpreting bar codes, which illuminates the bar code with a fixed elliptical beam and images the reflected beam onto a CCD array. The black and white bar information is detected by the electronically scanned elements of a linear CCD array. The limited operational range, determined by the optical system depth of focus, is enhanced significantly to a useful operational range by automatically focusing the image of the bar code on the CCD array.
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An Con Genetics, Inc.
Shepperd John W.
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