Patent · US Active

Ophthalmic lens having anti-reflective and electrochromic functions

US12174466B2 · kind B2 · utility

0Cited by

2References

22Claims

0Family size

Assignee

Essilor International · FR

Inventor

William TROTTIER-LAPOINTE · Charenton-le-Pont, FR

Key dates

Filing date	Jul 26, 2019
Grant date	Dec 24, 2024
Priority date	—
Expiry date	Mar 1, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/157
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Disclosed is an ophthalmic lens including a transparent substrate with a front main face and a rear main face, at least one of the main faces being coated with a multilayered interferential stack (IF stack), including at least one HI layer having a refractive index higher than or equal 1.55 and at least one LI layer having a refractive index lower than 1.55, characterized in that an electrochromic stack (EC stack): is part of the multilayered interferential stack; or is directly deposited onto the multilayered interferential stack, so as to form a multilayered interferential coating (IF coating).

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