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. 24, 2023
Filed:
Feb. 15, 2019
Essilor International, Charenton-le-Pont, FR;
Francisco De Ayguavives, Charenton-le-Pont, FR;
Xiaohong Zhang, Charenton-le-Pont, FR;
William Trottier-Lapointe, Charenton-le-Pont, FR;
Essilor International, Charenton-le-Pont, FR;
Abstract
An ophthalmic tinted glass () comprises a substrate-forming base eyeglass (), a first layered structure () which covers a convex face (Cx) of the base eyeglass, and optionally a second layered structure () which covers a concave face (Cc) of the base eyeglass. The first layered structure has a function of selective reflection increase, and the second layered structure is antireflective. Such ophthalmic tinted glass produces solar protection while having a mean transmittance value in a wavelength range from 460 nm to 10 nm, or 465 nm to 495 nm, which is high enough for avoiding biological, hormonal and behavioural disorders for a wearer of the tinted glass.