Patent · US Active

Method for producing an optical article coated with an antireflection or a reflective coating having improved adhesion and abrasion resistance properties

US8846140B2 · kind B2 · utility

12Cited by

4References

24Claims

0Family size

Assignee

Essilor International (Compagnie Generale d'Optique) · FR

Inventors

Philippe Roisin · Charenton-le-Pont, FR
Michele M. Thomas · Houston, US

Key dates

Filing date	Oct 22, 2012
Grant date	Sep 30, 2014
Priority date	—
Expiry date	Oct 22, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG02B1/12
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to a method for producing an optical article having antireflection or reflective properties and comprising a substrate having at least one main surface, comprising the step of depositing an sub-layer onto a substrate's main surface, the step of treating the sub-layer by ionic bombardment and the step of depositing onto said sub-layer a multilayered stack comprising at least one high refractive index layer and at least one low refractive index layer. According to a preferred embodiment, the deposition of the sub-layer is conducted in a vacuum chamber in which a gas is supplied during the deposition step.

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