The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 2003
Filed:
Aug. 15, 2001
Guido Maurizio Oliva, Rovigo, IT;
Datalogic, S.p.A., Bologna, IT;
Abstract
The invention relates to an optical device for focusing a substantially elliptical laser beam comprising: means for collimating a substantially elliptical laser beam so to generate a collimated beam of substantially elliptical profile; means for circularizing the collimated beam so to generate a beam of substantially circularized profile; and means for focusing the circularized beam. The device according to the invention allows on one side to achieve better results in terms of increasing the depth of focus and overall efficiency of the system, and on the other side to allow reading of optical codes also when these are tilted with respect to the scan direction of an angle up to 45° (tilt angle).