Patent · US Active

Ophthalmic lens

US10330953B2 · kind B2 · utility

2Cited by

2References

22Claims

0Family size

Assignee

Essilor International · FR

Inventors

Francisco De Ayguavives · Charenton-le-Pont, FR
Hélène MAURY · Paris, FR

Key dates

Filing date	May 16, 2013
Grant date	Jun 25, 2019
Priority date	—
Expiry date	May 16, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG02C2202/16
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An ophthalmic lens having a main front face and a main rear face includes: an element for cutting off ultraviolet (UV) light incident on the main front face of the ophthalmic lens; an anti-reflection coating on the main rear face of the ophthalmic lens, having a weighted average reflection factor in the UV region of less than or equal to 7%; and at least one element for at least partially blocking the blue light in the wavelength region from 400 to 460 nanometers, preferably from 420 to 450 nanometers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.