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:
Feb. 18, 2025
Filed:
Dec. 15, 2022
Coopervision International Limited, Fareham, GB;
Martin Webber, Southampton, GB;
Arthur Bradley, Bloomington, IN (US);
Baskar Arumugam, Dublin, CA (US);
David S. Hammond, Pleasanton, CA (US);
Paul Chamberlain, Livermore, CA (US);
COOPERVISION INTERNATIONAL LIMITED, Fareham, GB;
Abstract
A contact lens () and methods of manufacturing such a lens are described. The lens () includes an optic zone (). The optic zone () comprises a central region (), the central region () having a first optical axis (), a base radial curvature power, a base radial sagittal power, and a centre of curvature that is on the first optical axis (). The optic zone () comprises an annular region (), wherein at a point halfway across the width of the annular region () the annular region () has a radial curvature power of X, wherein X is greater than the base radial curvature power. The annular region () has an off-axis centre of curvature that is a first distance from the optical axis () such that, at a point halfway across its width, the annular region () has a sagittal power of Y, wherein Y is greater than the base radial sagittal power, and wherein Y is less than X.