Patent · US Active

Composite high index layers for anti reflective stacks

US10234697B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

Essilor International · FR

Inventors

Hélène MAURY · Paris, FR
Xingzhao DING · Singapore, SG

Key dates

Filing date	Dec 16, 2016
Grant date	Mar 19, 2019
Priority date	—
Expiry date	Dec 20, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C2217/734
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

An ophthalmic lens comprising an antireflective stack which strongly reduces reflection in the UV range and in the visible range. The antireflective stack comprises composite high index layers comprising zirconium oxide and another metal oxide.

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