Instant portable bar code reader

Details Instant portable bar code reader Instant portable bar code reader

1992-02-24

1993-06-08

Pitts, Harold

Registers

Coded record sensors

Particular sensor structure

235462, 235455, G06K 710

Patent

active

052181910

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 less. The bar code image is converged through a generally rectangular optical aperture and is reflected onto the image photosensor by a reflecting mirror positioned relative to the image photosensor by virtue of their common association with a printed circuit board.

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English translation of p. 1 of Japanese Utility Model Kokai.
English translation of legends of FIG. 4 of Japanese Utility Model Kokai.
Japanese language copy of Japanese Utility Patent Model No. 54-120330, dated Feb. 13, 1978 for a Bar Code Reader, by Toshiyasu Sakai.
English translation of Japanese Utility Patent Model No. 54-120330, dated Feb. 13, 1978 for a Bar Code Reader, by Toshiyasu Sakai.
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Burke "High-Performance Optical Sensing System for Reading Bar Code" IBM Technical Disclosure Bulletin, vol. 17, No. 3, Aug. 1974 p. 692.

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