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:
Aug. 26, 2025
Filed:
Jun. 07, 2022
Essilor International, Charenton le Pont, FR;
Xingzhao Ding, Singapore, SG;
Essilor International, Charenton-le-Pont, FR;
Abstract
The invention relates to an optical lens comprising a substrate having a front main face and a rear main face, at least one of the main faces comprising a multilayer antireflection coating having a stack of at least one high refractive index layer and at least one low refractive index layer, wherein the multilayer antireflection coating(s) present on the main face(s) provide(s) the optical lens with an average blue light reflection factor Rwithin a wavelength range of from 420 nm to 450 nm, which is higher than or equal to 17%, for an angle of incidence ranging from 0° to 15°, and the multilayer antireflection coating provides said at least one main face with a mean light reflection factor Rbetween 380 nm and 780 nm lower than or equal to 0.5%, for an angle of incidence ranging from 0° to 15°.