Patent · US Active

Ophthalmic lens comprising a thin antireflective coating with a very low reflection in the visible region

US10527760B2 · kind B2 · utility

0Cited by

1References

19Claims

0Family size

Assignee

Essilor International · FR

Inventors

Hélène MAURY · Paris, FR
Dominique Conte · Charenton-le-Pont, FR
Xingzhao DING · Singapore, SG

Key dates

Filing date	Feb 1, 2017
Grant date	Jan 7, 2020
Priority date	—
Expiry date	Dec 12, 2037

Classification

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

Abstract

This invention relates to an ophthalmic lens comprising a transparent substrate with a front main face and with a rear main face, at least one of the main faces being coated with a multilayered antireflective coating comprising a stack composed of at least: characterized in that wetting layer (i) is in direct contact with metal layer (ii), with the proviso that said multilayered antireflective coating does not comprise silicon nitride and wherein (ii) the metal layer has a physical thickness equal to or higher than 6 nm.

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