Registers – Coded record sensors – Particular sensor structure
Patent
1995-10-11
1999-05-04
Hajec, Donald
Registers
Coded record sensors
Particular sensor structure
235455, 235467, G06K 710
Patent
active
059006153
ABSTRACT:
A bar-code reader includes a laser source for emitting a laser beam, and a scan device having reflecting surfaces for scanning a bar code with the laser beam according to a predetermined scanning pattern. A window passes the laser beam from the scan device toward the bar code. A condensing device is provided for condensing reflected light returned from the bar code which passes through the window and is reflected by the reflecting surfaces of the scan device along the route traced by the laser beam. A photosensor is provided for detecting the condensed light and for providing an electric signal in proportion to the intensity of the detected light. A replaceable emission-condensing unit incorporates the laser source, the condensing device, and the photosensor except the scan device and the window, to be mechanically correctly installed.
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Aoki Toshitaka
Goto Kouta
Katoh Hiroaki
Sebata Ichiro
Fujitsu Limited
Hajec Donald
Rodriguez Douglas X.
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