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US 9,435,912 B1Granted
Electronically conductive infrared transparent polymer thin films
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsWilliam W. Lai, Lee R. Cambrea, Alfred J. Baca
Life of this patent
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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.
Claims5
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 104 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.
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 104 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.
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 104 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.
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 104 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.
Dependencies are inferred from the claim text.