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. 08, 2024
Filed:
Apr. 13, 2021
Applicant:
Alcon Inc., Fribourg, CH;
Assignee:
Alcon Inc., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/16 (2006.01); G02C 7/04 (2006.01); G02C 7/06 (2006.01);
U.S. Cl.
CPC ...
A61F 2/1613 (2013.01); A61F 2/1618 (2013.01); A61F 2/1637 (2013.01); A61F 2/1654 (2013.01); G02C 7/041 (2013.01); A61F 2/1659 (2013.01); A61F 2002/1681 (2013.01); G02C 7/06 (2013.01); G02C 2202/20 (2013.01); G02C 2202/22 (2013.01);
Abstract
An ophthalmic lens includes an optic comprising an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface has a surface profile including a base curvature, a refractive region having the base curvature, and a diffractive region comprising a diffractive profile including a plurality of diffractive steps. At least a portion of the diffractive profile constitutes a combination of a base diffractive profile defining multiple foci for the ophthalmic lens and an achromatizing structure that reduces longitudinal chromatic aberrations.