Electronically conductive infrared transparent polymer thin films

Patent metadata

Field	Value
Publication number	US-9435912-B1
Application number	US-201213678387-A
Country	US
Kind code	B1
Filing date	Nov 15, 2012
Priority date	Nov 21, 2011
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

A wholly organic coating consisting of one or more layers of Py-BBL that is transparent in the IR region of the spectrum which is also thermally and oxdatively stable. This is coated onto IR transparent windows, domes and or optical lenses, for enhanced IR and signal filtering.

First claim

What is claimed is:

1. An optical shielding device, comprising:
a non-conductive, infrared transparent substrate; and
at least one layer of pyridine poly(benzo-isimidazobenzophenanthroline) (Py-BBL) having a conductivity between 10 4 and 10 −4 Siemens/cm, wherein said at least one layer is associated with said substrate, wherein said at least one layer is a coating and is substantially non-metallic organic, thermally and oxidatively stable, and is transparent from 2-4 microns in an infrared (IR) region of an electromagnetic spectrum, to be utilized as a non-electrical electromagnetic optical shield.

2. The device according to claim 1 , wherein said substrate including said coating is selected infrared transparent windows or domes.

3. A coated infrared dome, comprising:
a dome constructed of an non-conductive infrared (IR) transparent substrate; and
at least one layer of pyridine poly(benzo-isimidazobenzophenanthroline) (Py-BBL) having a conductivity between 10 4 and 10 −4 Siemens/cm, wherein said at least one layer is associated with said substrate, wherein said at least one layer is substantially non-metallic organic, thermally and oxidatively stable, and is transparent from 2-4 microns in an infrared region of an electromagnetic spectrum, to be utilized as an electromagnetic infrared dome shield.

4. A coated window, comprising:
a window constructed of an infrared (IR), non-conductive transparent substrate; and
at least one layer of pyridine poly(benzo-isimidazobenzophenanthroline) (Py-BBL) having a conductivity between 10 4 and 10 −4 Siemens/cm, wherein said at least one layer is associated with said substrate, wherein said at least one layer is a coating substantially non-metallic organic, thermally and oxidatively stable, and is transparent from 2-4 microns in an infrared region of an electromagnetic spectrum, to be utilized as an electromagnetic window shield.

5. A coated optical lens, comprising:
optical lens constructed of an infrared (IR) non-conductive transparent substrate; and
at least one layer of pyridine poly(benzo-isimidazobenzophenanthroline) (Py-BBL) having a conductivity between 10 4 and 10 −4 Siemens/cm, wherein said at least one layer is associated with said substrate, wherein said at least one layer is a coating substantially non-metallic organic, thermally and oxidatively stable, and is transparent from 2-4 microns in an infrared region of an electromagnetic spectrum, to be utilized as an electromagnetic shield optical lens.

Assignees

• The Us Secretary Of The Dept Of The Navy
• Us Navy

Inventors

• Lai William W
• Cambrea Lee R
• Baca Alfred J

Classifications

• G02B1/04 Primary

  made of organic materials, e.g. plastics (G02B1/08 takes precedence) · CPC title

• G02B5/28 Primary

  Interference filters · CPC title

• G02B13/14

  for use with infrared or ultraviolet radiation ({G02B13/008, } G02B13/16 take precedence) · CPC title

• G02B5/208 Primary

  for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation · CPC title

• G02B1/10

  Optical coatings produced by application to, or surface treatment of, optical elements (G02B1/08 takes precedence) · CPC title