Three line scanner for bar code symbols

Details Three line scanner for bar code symbols Three line scanner for bar code symbols

1975-06-09

1976-10-26

Cook, Daryl W.

Registers

Calculators

Input-output calculator to indicator, printer, etc.

250555, G06K 710, G08C 906

Patent

active

039885739

ABSTRACT:
An optical scanner is disclosed for reading of optical bar codes of the type used for point-of-sale data acquisition. The optical scanner provides a 3-line scan pattern adapted for omnidirectional reading of a bar code symbol. Beam deflection means in the path of a single light beam is operative to deflect the beam about a deflection axis and to tilt the deflection axis from one deflection plane to another after each beam deflection thereby producing three trace segments in separate deflection planes. Trace orienting means in each of the deflection planes redirect the beams so that the trace segments are projected into the scanning field to produce 3-line pattern of trace segments.

REFERENCES:
patent: 3728677 (1973-04-01), Munson
patent: 3902048 (1975-08-01), Fleischer et al.
patent: 3916158 (1975-10-01), Sansone et al.

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