Infrared/visible energy protection for millimeter wave bolometer antenna method and apparatus
US6441368B1 · kind B1 · utility
21Cited by
1References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2001 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Oct 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2005/202
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for protecting a bolometer antenna imaging array from out of band electromagnetic energy is disclosed. Protective pads are disposed upon a window in an optical system forming a millimeter wave image on an array of bolometer antenna sensors. The protective pads are effectively opaque to infrared and visible emissions and are aligned to shade the bolometer portion of the bolometer antennas from infrared and visible emissions, while leaving the antenna portion of each sensor in the array exposed to intercept the millimeter wave energy incident upon them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.