Registers – Coded record sensors – Particular sensor structure
Patent
1995-06-06
2000-12-12
Pitts, Harold I.
Registers
Coded record sensors
Particular sensor structure
23546246, G06K 710
Patent
active
061586617
ABSTRACT:
In an exemplary embodiment, a hand-held bar code reader has a handle portion and a reader head portion which may be held spaced from a bar code data carrier during a reading operation. Light energy is directed outwardly through a window so as to illuminate a bar code sensing region in front of the window having a depth dimension of at least about ten millimeters, and an optical system focuses bar code patterns in the sensing region onto an image photosensor in the reader unit with a resolution so as to read e.g., bar code formats with a minimum bar or space width of about 0.0075 inch, or even less. Preferably the light source is of an electronically triggerable instant response type and is located substantially within the reader head portion. The bar code image is converged through a generally rectangular optical aperture and is decoded by a battery powered programmable decoder located substantially within the handle portion.
REFERENCES:
patent: 4251798 (1981-02-01), Swartz et al.
patent: 4542528 (1985-09-01), Sanner et al.
"Data Acquisition Through Portable Laser Scanners", C. Harry Knowles, Code & Symbol Magazine, Apr. 1976.
Chadima, Jr. George E.
Laser Vadim
Intermec IP Corp.
Pitts Harold I.
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