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US 8,784,151 B1Granted
Variable emissivity material
AssigneeHRL Laboratories, LLC
InventorsDaniel J. Gregoire, Deborah J. Kirby
Life of this patent
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Abstract
A material of variable emissivity includes a first metallic layer having a first aperture, a second metallic layer having a second aperture, and a variable dielectric layer interposed between the first metallic layer and the second metallic layer.
Claims26
A method for manufacturing a variable emissivity material, the method comprising:
- providing a first metallic layer having a first aperture;
- providing a second metallic layer having a second aperture;
- and
- disposing a variable dielectric layer interposed between the first metallic layer and the second metallic layer;
- disposing a first dielectric layer interposed between the first metallic layer and the variable dielectric layer;
- and
- disposing a second dielectric layer interposed between the second metallic layer and the variable dielectric layer;
- wherein in an activated state the variable dielectric layer has a high permittivity compared to the first and second dielectric layers.
5 more elements
A method for creating a variable emissivity surface, the method comprising:
- selecting a first metallic layer having a first aperture;
- selecting a second metallic layer having a second aperture;
- disposing a variable dielectric layer interposed between the first metallic layer and the second metallic layer;
- disposing a first dielectric layer interposed between the first metallic layer and the variable dielectric layer;
- disposing a second dielectric layer interposed between the second metallic layer and the variable dielectric layer;
- and
- applying an electric field between the first metallic layer and the second metallic layer;
- wherein in an activated state the variable dielectric layer has a high permittivity compared to the first and second dielectric layers.
5 more elements
A method for creating a variable emissivity material, the method comprising:
- selecting a first metallic layer having a first aperture;
- selecting a second metallic layer having a second aperture;
- disposing a variable dielectric layer interposed between the first metallic layer and the second metallic layer;
- disposing a first dielectric layer interposed between the first metallic layer and the variable dielectric layer;
- disposing a second dielectric layer interposed between the second metallic layer and the variable dielectric layer;
- and
- providing a temperature change in the range of about 50 to 100 degrees centigrade to the variable dielectric layer;
- wherein in an activated state the variable dielectric layer has a high permittivity compared to the first and second dielectric layers.
5 more elements
Dependencies are inferred from the claim text.