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:
Oct. 14, 2003
Filed:
May. 31, 2001
Applicant:
Inventors:
Leonard Bergstein, Teaneck, NJ (US);
Emanuel Marom, Tel Aviv, IL;
Yajun Li, Oakdale, NY (US);
Joseph Katz, Stony Brook, NY (US);
Assignee:
Symbol Technologies, Inc., Holtsville, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 2/742 ; G06K 7/10 ;
U.S. Cl.
CPC ...
G02B 2/742 ; G06K 7/10 ;
Abstract
A beam generator, or beam shaping system, for example for use in an optical scanner, creates a non-Gaussian beam which provides improved indicia-reading characteristics. In one embodiment, diffractive optical elements are used to create a Bessel-Gaussian scanning beam, which comprises a coherent combination of a Gaussian beam and a Bessel beam.