Optical scan pattern generator for code reading systems

Details Optical scan pattern generator for code reading systems Optical scan pattern generator for code reading systems

1975-04-16

1976-11-30

La Roche, Eugene

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

235 6111E, 250568, 3401463F, G06K 710

Patent

active

039951669

ABSTRACT:
A reader-scanner system using a laser as a source of a narrow beam of light and having optical means for directing the light beam from the laser to a scan target area with the optical means generating a pattern comprising a series of intersecting diagonal and horizontal lines relative to the path of objects which pass through the scan target area, with sequential scan pattern sets in the scan target area displaced in the direction of oncoming objects from the previous scan pattern set, with each of the lines defining each scan pattern set approaching the scan target area from a different direction and wherein the optical path of the incoming scan lines is shared by the reflected light as it travels to the system's optical detector.

REFERENCES:
patent: 3728677 (1973-04-01), Munson
patent: 3731106 (1973-05-01), Mansell
patent: 3823326 (1974-09-01), Plockl
patent: 3889102 (1975-06-01), Dahlquist
patent: 3899687 (1975-08-01), Jones
patent: 3902048 (1975-08-01), Fleischer et al.
patent: 3947816 (1976-03-01), Rabedeau
B382,783; Jan. 1975; Bowen et al.

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