Patent · US Expired

Device for optical scanning of objects, especially markings

US7128267B2 · kind B2 · utility

70Cited by

7References

20Claims

0Family size

Assignee

SICK AG · DE

Inventors

Juergen Reichenbach · Emmendingen, DE
Ralf Ulrich Nuebling · Denzlingen, DE
Christoph Anselment · Waldkirch, DE
Roland Gehring · Waldkirch, DE

Key dates

Filing date	Jul 9, 2004
Grant date	Oct 31, 2006
Priority date	—
Expiry date	Aug 14, 2024

Classification

Technology area (CPC G)Physics
CPC primaryG06K7/10574
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A device for optical scanning of markings, such as barcodes, has at least two transmitters (10, 20) that send light beams (12, 22) at different angles toward a rotating polygonal mirror (30), which deflects the light beams onto the markings being scanned. The light reflected by the markings is deflected by the polygonal mirrors (30) to separate receiver systems, so that the device has and simultaneously uses at least two separate transmitter/receiver channels.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.