Registers – Coded record sensors – Particular sensor structure
Patent
1999-02-04
2000-11-07
Lee, Michael G
Registers
Coded record sensors
Particular sensor structure
23546206, 23546243, 23547201, G06K 710, C08C 2100
Patent
active
061423785
ABSTRACT:
A bar-code reader is easy to use and has an optical system that is easy to position and replace. The bar-code reader is used for a POS system. The bar code reader has a laser source for emitting a laser beam, a scan unit for scanning a bar code with the laser beam according to a predetermined scanning pattern, a window for emitting the laser beam from the scan unit, a condensing unit for condensing reflected light returned from the bar code through the window and scan unit along the route the laser beam traced, a photosensor for detecting the condensed light and providing an electric signal in proportion to the intensity of the detected light, and an emission-condensing unit incorporating the laser source, condensing unit, and photosensor, which can be easily and correctly mechanically installed.
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Aoki Toshitaka
Goto Kouta
Katoh Hiroaki
Sebata Ichiro
Fujitsu Limited
Lee Michael G
Rodriguez Douglas X.
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