Optical data reading device
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United States of America Patent
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-
Feb 4, 1997
Grant Date -
N/A
app pub date -
Nov 29, 1994
filing date -
Nov 29, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An optical data reading device has a main housing and an optical system housing connected to the main housing. A light source and an imaging optical system are housed in the optical system housing. An image sensor, an image signal processing unit and a light source control unit are housed in the main housing. The light source illuminates a bar code, and the imaging optical system passes light reflected from the bar code into the main housing. The image sensor outputs a signal in accordance with the light passed by the imaging optical system. The image signal processing unit performs a predetermined process on the signal. The light source control unit controls the amount of light generated by the light source in accordance with a processing result obtained by the image signal processing unit.
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