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:
Jan. 14, 2025
Filed:
Mar. 23, 2020
Applicant:
Essilor International, Charenton-le-Pont, FR;
Inventors:
Pierre Fromentin, Bangkok, TH;
Harutsai Waipunya, Bangkok, TH;
Haifeng Shan, Dallas, TX (US);
Hao-Wen Chiu, Dallas, TX (US);
Assignee:
Essilor International, Charenton-le-pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/20 (2006.01); G02B 1/04 (2006.01); G02B 5/22 (2006.01); G02C 7/10 (2006.01);
U.S. Cl.
CPC ...
G02B 5/208 (2013.01); G02B 1/041 (2013.01); G02B 5/206 (2013.01); G02B 5/223 (2013.01); G02C 7/108 (2013.01);
Abstract
Disclosed are optical elements that contains two or more near infrared absorbers and methods of producing the same. Two near infrared absorbers with different near infrared wavelengths absorption ranges and residual colors are mixed with a precursor of an optical substrate. The resulting mixture is subsequently processed to produce optical elements that have a broad near infrared wavelength absorption range and a neutral residual color.