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. 28, 2023
Filed:
Mar. 25, 2015
Applicant:
Essilor International, Charenton le Pont, FR;
Inventor:
Narendra Borgharkar, Dallas, TX (US);
Assignee:
Essilor International, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/115 (2015.01); C23C 14/08 (2006.01); G02B 5/28 (2006.01); C23C 14/34 (2006.01); G02B 5/20 (2006.01); G02C 7/10 (2006.01); C23C 14/06 (2006.01); C23C 14/10 (2006.01);
U.S. Cl.
CPC ...
G02B 1/115 (2013.01); C23C 14/08 (2013.01); C23C 14/34 (2013.01); G02B 5/208 (2013.01); G02B 5/283 (2013.01); G02C 7/10 (2013.01); C23C 14/0652 (2013.01); C23C 14/081 (2013.01); C23C 14/083 (2013.01); C23C 14/10 (2013.01); C23C 14/3464 (2013.01);
Abstract
The present invention provides a UV antireflective coating stack for ophthalmic lenses. The antireflective coating stack is deposited by sputtering, which lowers the reflectivity of the antireflective stack in the UV range and maintains low reflectivity in the visible range. The antireflective coating stack offers improved thermo-mechanical performance as compared to evaporation-based UV antireflective stacks.