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. 21, 2021
Filed:
Oct. 20, 2017
Applicant:
Essilor International, Charenton-le-Pont, FR;
Inventor:
Pierre Fromentin, Bangkok, TH;
Assignee:
Essilor International, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/75 (2006.01); B29D 11/00 (2006.01); C08G 18/08 (2006.01); C08G 18/24 (2006.01); C08G 18/28 (2006.01); C08K 5/3417 (2006.01); C08K 5/3437 (2006.01); G02B 1/04 (2006.01); G02C 7/10 (2006.01); B29K 75/00 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
C08G 18/758 (2013.01); B29D 11/00634 (2013.01); C08G 18/14 (2013.01); C08G 18/242 (2013.01); C08G 18/288 (2013.01); C08K 5/3417 (2013.01); C08K 5/3437 (2013.01); G02B 1/04 (2013.01); G02B 1/041 (2013.01); G02C 7/104 (2013.01); B29K 2075/00 (2013.01); B29K 2105/0002 (2013.01); B29K 2995/003 (2013.01); C08K 2201/014 (2013.01);
Abstract
The present invention relates to an optical article having a substrate made of an optical material comprising a polymer matrix and at least one near infrared absorber, wherein Tis higher than or equal to 70%, Tis lower than or equal to 85%, Tand Tbeing respectively the average optical transmittance in the 780-1400 nm and in the 380-780 nm wavelength range for the optical material through a 2 mm thick layer of said optical material. This optical article can be used to protect from noxious infrared light.