Low mass optical coating for thin film detectors
US5929441A · kind A · utility
21Cited by
8References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 27, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Jun 27, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/046
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A thermal detector having an optical coating comprising a porous film 64. The porous film preferably comprises a xerogel or aerogel and is greater than 80% porous. An optional optical impedance matching layer 66 may be deposited over the porous film 64. Advantages include decreased thickness of the thermal sensor, improved acuity of the image produced by the system, lower manufacturing temperatures, and the ability to use electrodes that are opaque to infrared energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.