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:
Sep. 12, 2023
Filed:
Apr. 13, 2021
Applicant:
Coopervision International Limited, Fareham, GB;
Inventor:
Martin Webber, Southampton, GB;
Assignee:
COOPERVISION INTERNATIONAL LIMITED, Fareham, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/02 (2006.01); G02C 7/04 (2006.01);
U.S. Cl.
CPC ...
G02C 7/044 (2013.01); G02C 7/027 (2013.01); G02C 2202/20 (2013.01);
Abstract
A multifocal ophthalmic lens has a surface that varies across at least a portion of the lens to form a surface power map. The surface power map comprises a spiral, with a power that varies substantially periodically both radially outwards from and angularly about an optical axis of the lens. A period of the radial variation is greater than 100 microns and a period of the angular variation is greater than 6 degrees. Methods of making and using the multifocal ophthalmic lens are also described.