Instant portable bar code reader

Details Instant portable bar code reader Instant portable bar code reader

1989-06-09

1991-08-06

Pitts, Harold I.

Registers

Coded record sensors

Particular sensor structure

235455, 235462, 250566, G06K 710

Patent

active

050380249

ABSTRACT:
In an examplary embodiment, a hand-held bar code reader has a hand grip 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. The bar code image is converged through a generally rectangular optical aperture.

REFERENCES:
patent: 4603262 (1986-07-01), Eastman
patent: 4766300 (1988-08-01), Chadima, Jr.

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