Method of mirror coating an optical article and article thereby obtained

Patent metadata

Field	Value
Publication number	US-10745820-B2
Application number	US-201515540696-A
Country	US
Kind code	B2
Filing date	Jun 8, 2015
Priority date	Dec 31, 2014
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

A method and system for manufacturing an optical article is provided. The method may comprise providing at least one ophthalmic lens substrate having a surface; applying at least one conductive coating on at least a portion the ophthalmic lens substrate; and electroplating the ophthalmic lens substrate to form a plating layer that is in a contacting relationship with the conductive coating of the optical article. Other layers may also be applied.

First claim

What is claimed is:

1. A method for manufacturing an optical article, the method comprising:
providing at least one ophthalmic lens substrate having a surface;
applying at least one SiO 2 layer on the surface of the at least one ophthalmic lens substrate;
applying at least one strike layer on the SiO 2 layer of the at least one ophthalmic lens substrate, the at least one strike layer being a conductive transparent material that is compatible with and configured to adhere to the at least one ophthalmic lens substrate; and
electroplating the ophthalmic lens substrate to form a plating layer that is in a contacting relationship with the conductive transparent material, the plating layer being compatible with and configured to adhere to the strike layer.

2. The method of claim 1 , wherein the strike layer is applied onto the surface of the ophthalmic lens substrate by any one of the group comprising: physical vapor deposition (PVD), chemical vapor deposition (CVD), sputtering, dip coating, and spin coating.

3. The method of claim 1 , further comprising immersing the at least one ophthalmic lens substrate into an immersion bath.

4. The method of claim 1 , wherein the at least one ophthalmic lens substrate functions as a cathode.

5. The method of claim 1 , wherein the at least one ophthalmic lens substrate functions as an anode.

6. The method of claim 1 , wherein the electroplating is selected from at least one of the methods of the group comprising: electroless deposition, pulse electroplating, and brush coating deposition.

7. The method of claim 1 , further comprising one or more of the following steps before applying the at least one SiO 2 layer:
de-greasing the lens substrate;
pre-etching the lens substrate;
etching the lens substrate; and
rinsing the lens substrate.

8. The method of claim 1 , the method comprising one or more of the following steps after applying the conductive coating:
etching the lens substrate;
anodizing the lens substrate;
tinting the lens substrate;
sealing the lens substrate;
electropolishing the lens substrate; and
applying a coating to the lens substrate.

Assignees

• Essilor Int
• Essilor Int

Inventors

• Eagerton William

Classifications

• C25D11/246

  for sealing layers · CPC title

• C25D11/243

  using organic dyestuffs · CPC title

• C25D11/04

  of aluminium or alloys based thereon · CPC title

• C25D7/08 Primary

  Mirrors; Reflectors · CPC title

• C25D5/56

  of plastics · CPC title