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US 7,629,582 B2Granted
Dual band imager with visible or SWIR detectors combined with uncooled LWIR detectors
AssigneeRaytheon Company
InventorsAlan W. Hoffman, Michael Ray, Richard E. Bornfreund
Life of this patent
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Abstract
A dual band imager includes a radiation absorbing layer for absorbing light of a first wavelength coupled to a readout circuit (ROIC), and at least one radiation detector for detecting light of a second wavelength coupled to the ROIC via a corresponding opening extending through the radiation absorbing layer.
Claims18
A dual band microbolometer, comprising:
- a radiation absorbing layer for absorbing light of a first wavelength;
- a readout circuit (ROIC);
- a multi-layer thermal isolation leg structure comprising a first layer electrically coupling the radiation absorbing layer to the ROIC and a second layer thermally sinking the leg structure to the ROIC;
- and
- at least one radiation detector for detecting light of a second wavelength, the at least one radiation detector electrically coupled to said ROIC via a corresponding opening extending through said radiation absorbing layer;
- wherein said radiation absorbing layer is comprised of at least one of Vanadium oxide and Titanium oxide.
3 more elements
A dual band microbolometer for outputting image information, comprising:
- a radiation absorbing layer for absorbing light of a first wavelength wherein said radiation absorbing layer is comprised of at least one of Vanadium oxide and Titanium oxide;
- a readout circuit (ROIC);
- a multi-layer thermal isolation leg structure comprising a first layer electrically coupling the radiation absorbing layer to the ROIC and a second layer thermally sinking the leg structure to the ROIC;
- at least one radiation detector for detecting light of a second wavelength, the at least one radiation detector electrically coupled to said ROIC via a corresponding opening extending through said radiation absorbing layer;
- means for processing coupled to said dual band imager for processing said image information;
- and
- means for displaying coupled to said means for processing for displaying said processed image information.
4 more elements
Dependencies are inferred from the claim text.