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:
Dec. 10, 2024
Filed:
Sep. 01, 2021
Applicant:
Coopervision International Limited, Fareham, GB;
Inventors:
Robert Andrew Broad, Hampshire, GB;
Yuwen Liu, Dublin, CA (US);
William Mitchell, Chandler's Ford, GB;
Assignee:
COOPERVISION INTERNATIONAL LIMITED, Fareham, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/10 (2006.01); B29D 11/00 (2006.01); C09B 1/20 (2006.01); C09B 1/503 (2006.01); G02B 1/04 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
G02C 7/104 (2013.01); B29D 11/00048 (2013.01); B29D 11/00067 (2013.01); C09B 1/205 (2013.01); C09B 1/5035 (2013.01); G02B 1/043 (2013.01); G02C 7/108 (2013.01); B29K 2105/0032 (2013.01);
Abstract
The present disclosure provides a contact lens comprising a first colourant which is a blue-blocking colourant having an absorption maximum (λ) in the range of from 415 nm to 455 nm and a second colourant, wherein the second colourant is a polymerizable dye having an absorption maximum (λ) in the range of from 470 nm to 600 nm, and optionally also comprising a third colourant which is a colourant having an absorption maximum in the range of from greater than 600 nm to 800 nm. A method of making the lens is also provided.