Device for detecting infrared radiation with bolometric detectors
US7288765B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 2005 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Sep 11, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This device for detecting infrared radiation comprises a one or two-dimensional array of elementary bolometric detectors, that are electrically connected to a readout circuit (1), which is associated with a compensation structure intended to divert most of the background or common-mode current that flows through each of the bolometric detectors in the array.The compensation structure consists of a layer that incorporates at least one bolometric material (8) extending between two electrical connection areas (3, 6, 7) linked to the readout circuit (1).The layer that incorporates the bolometric material (8) that constitutes the compensation structure is itself in thermal contact with the substrate that constitutes the readout circuit (1) outside the electrical connection areas (3, 6, 7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.