Wire grid polarizer and method of manufacture

Patent metadata

Field	Value
Publication number	US-10838128-B2
Application number	US-201816159270-A
Country	US
Kind code	B2
Filing date	Oct 12, 2018
Priority date	Feb 6, 2014
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

A polarizing optical article formed by selectively applying a conductive coating to a portion of a structured surface formed of a series of linear peaks and valleys.

First claim

What is claimed is:

1. A method for forming a polarized ophthalmic article comprising:
forming a linear structured surface on a film;
coating the linear structured surface with a conductive coating so as to form substantially distinct individual wires on said film;
applying a liquid form of a lens substrate to said film;
allowing said liquid form to harden so as to form a laminate polarized ophthalmic article.

2. The method of claim 1 wherein the step of applying said liquid form of said lens substrate to said film comprises an injection molding process.

3. The method of claim 1 wherein the step of applying said liquid form of said lens substrate to said film comprises a casting process.

4. The method of claim 1 wherein the step of forming a linear structured surface on said film comprises the process of imprinting by replication from a mold.

5. The method of claim 1 wherein the step of forming a linear structured surface on said film comprises forming a series of peaks and valleys having a pitch in a range of 150 to 300 nanometers.

6. The method of claim 1 wherein the step of coating the linear structured surface with a conductive coating so as to form substantially distinct individual wires on said film comprises coating only a portion of a tip of a plurality of peaks of the linear structured surface.

7. The method of claim 1 wherein the step of coating the linear structured surface with a conductive coating so as to form substantially distinct individual wires on said film comprises coating from an angle relative to a best fit line through the surface of the optical article that is greater than zero and less than 90 degrees.

8. The method of claim 1 wherein the step of coating the linear structured surface with a conductive coating so as to form substantially distinct individual wires on said film comprises coating a reflective conductive coating.

9. The method of claim 1 wherein the step of coating the linear structured surface with a conductive coating so as to form substantially distinct individual wires on said film comprises coating a non-reflective conductive coating.

10. The method of claim 1 wherein the step of coating the linear structured surface with a conductive coating so as to form substantially distinct individual wires on said film comprises coating a transparent conductive coating.

11. A method for forming a polarized ophthalmic article comprising:
forming a linear pattern of peaks and valleys on a surface of a film;
coating the surface of the film with a conductive coating from an angle relative to a best fit line through the surface of the film that is greater than zero and less than 90 degrees;
forming a plurality of conductive wires across at least a portion of the surface of the film through said coating;
applying a liquid form of a lens substrate to said film;
allowing said liquid form to harden so as to form a polarized ophthalmic article.

12. The method of claim 11 wherein the step of applying said liquid form of a lens substrate to said film comprises the process of injection molding.

13. The method of claim 11 wherein the step of applying said liquid form of a lens substrate to said film comprises the process of casting.

14. A laminate polarized ophthalmic lens comprising:
a film having a substantially uniform linear series of peaks and valleys formed on a surface of said film; and
a conductive coating applied to the series of peaks and valleys so as to form a series of conductive wires on said surface of said film;
said film fused to a lens substrate through hardening of a liquid state of said substrate to a solid state of said substrate.

15. The lens of claim 14 wherein said hardening comprises the solidifying of an injection molded lens substrate.

16. The lens of claim 14 wherein said hardening comprises the solidifying of a cast lens substrate.

Assignees

• Vision Ease Lp

Inventors

• Blacker Richard
• Olund David

Classifications

• G01J3/36

  Investigating two or more bands of a spectrum by separate detectors · CPC title

• B29D11/00644

  polarizing · CPC title

• G01J3/0291

  Housings; Spectrometer accessories; Spatial arrangement of elements, e.g. folded path arrangements · CPC title

• G02B5/3058 Primary

  comprising electrically conductive elements, e.g. wire grids, conductive particles · CPC title

• G01J3/0256

  Compact construction · CPC title