Code sensor with multi-faceted reflector for sensing plural imag

Details Code sensor with multi-faceted reflector for sensing plural imag Code sensor with multi-faceted reflector for sensing plural imag

1990-12-27

1993-03-30

Shepperd, John W.

Registers

Coded record sensors

Particular sensor structure

359852, G06K 710

Patent

active

051986485

ABSTRACT:
A bar code scanner having a lens, a reflector, a sensor, and a detection unit. The lens is arranged to focus an image of a bar code to be scanned along an image path. The reflector is angled obliquely to the image path so as to reflect images at an angle to the image path. The reflector has reflector surface shaped so as to provide a plurality of reflected images of the scanned bar code, with one of the reflected image being an in-focus image and a remainder of the reflected images being out-of-focus images. The sensor is in the image path and simultaneously senses the plurality of reflected images and provides a sensor output signal corresponding to the sensed images. The detection unit is coupled to the sensor and decodes the sensor output signal and provides a bar code output signal that corresponds to the scanned bar code.

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patent: 4818886 (1989-04-01), Drucker
patent: 4843222 (1989-06-01), Hochgraf
patent: 4877949 (1989-10-01), Danielson et al.
patent: 4896029 (1990-01-01), Chandler et al.
patent: 4967074 (1990-10-01), von Stein
patent: 5010241 (1991-04-01), Butterworth

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