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:
Jun. 23, 2009
Filed:
Jul. 31, 2006
Applicants:
Igor Vinogradov, Bay Shore, NY (US);
Vladimir Gurevich, Stony Brook, NY (US);
David Tsi-shi, Stony Brook, NY (US);
Inventors:
Igor Vinogradov, Bay Shore, NY (US);
Vladimir Gurevich, Stony Brook, NY (US);
David Tsi-Shi, Stony Brook, NY (US);
Assignee:
Symbol Technologies, Holtsville, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/18 (2006.01); G02B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An imaging lens assembly focuses light from indicia in a working range of distances along an optical path onto a solid-state imager of an imaging reader. The lens assembly includes a negative spherical aberration component and an aperture stop that together are operative for extending the working range.