Registers – Coded record sensors – Particular sensor structure
Patent
1997-03-21
2000-05-16
Hajec, Donald
Registers
Coded record sensors
Particular sensor structure
23546242, G06K 710
Patent
active
060624760
ABSTRACT:
A scanning device incorporates a vertical cavity surface emitting laser (VCSEL). The laser diode may be mounted directly on an Si substrate which is adapted for movement to produce a scan pattern. A collimating lens may be directly mounted on the emitting surface of the laser. A plurality of lasers may be mounted on the substrate and operated in sequence without movement of the substrate to produce the effect of a scan. The scanning device emits visible or invisible light towards a target such as a bar code and a detector (mounted on the same or an adjacent substrate) senses the light reflected by the target to produce data which is decoded for further processing. A VCSEL uses low current and emits light from a relatively large area so that a relatively large amount of light is emitted for relatively small heat generation.
REFERENCES:
patent: 4813762 (1989-03-01), Leger et al.
patent: 5473149 (1995-12-01), Miwa et al.
patent: 5500540 (1996-03-01), Jewell et al.
patent: 5525810 (1996-06-01), Jewell et al.
patent: 5663549 (1997-09-01), Katz
patent: 5745152 (1998-04-01), Vincent et al.
patent: 5770847 (1998-06-01), Olmstead
patent: 5777314 (1998-07-01), Roustaei
Campanelli Joseph
Dvorkis Paul
Gurevich Varl
Katz Joseph
Krichever Mark
Hajec Donald
Symbol Technologies Inc.
Tremblay Mark
LandOfFree
Bar code readers using surface emitting laser diode does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bar code readers using surface emitting laser diode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bar code readers using surface emitting laser diode will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-251778