Temperature stabilization of an on-chip temperature-sensitive element
US-2016380637-A1 · Dec 29, 2016 · US
Thermography camera tuned to detect absorption of infrared radiation in a selected spectral bandwidth
US2016255284A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016255284-A1 |
| Application number | US-201615056960-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 29, 2016 |
| Priority date | Mar 23, 2007 |
| Publication date | Sep 1, 2016 |
| Grant date | — |
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- Title
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Abstract
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An infrared camera system is provided to detect absorption of infrared radiation in a selected spectral bandwidth. In one example, an infrared camera system includes a lens adapted to receive infrared radiation from a survey scene comprising one or more gasses. The infrared camera system also includes a focal plane array comprising a plurality of quantum well infrared photo detectors (QWIPs). The QWIPs are tuned to detect a limited spectral bandwidth of the infrared radiation corresponding to at least a portion of an infrared absorption band of the one or more gasses. The infrared camera system also includes an optical band pass filter positioned substantially between the lens and the focal plane array. The optical band pass filter is adapted to filter the infrared radiation to a wavelength range substantially corresponding to the limited spectral bandwidth of the QWIPs before the infrared radiation is received by the focal plane array.
First claim
Opening claim text (preview).
What is claimed is: 1 . A device comprising: a focal plane array comprising a plurality of infrared photo detectors, wherein each infrared photo detector comprises: a plurality of quantum well layers configured to generate a desired photocurrent in response to infrared radiation; and a plurality of barrier layers alternating with the quantum well layers.
Assignees
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Classifications
- G01J5/061Primary
by controlling the temperature of the apparatus or parts thereof, e.g. using cooling means or thermostats · CPC title
Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils · CPC title
from thermal infrared radiation · CPC title
having three or more elements, e.g. GaAlAs, InGaAs or InGaAsP · CPC title
characterised by the dopants · CPC title
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- What does patent US2016255284A1 cover?
- An infrared camera system is provided to detect absorption of infrared radiation in a selected spectral bandwidth. In one example, an infrared camera system includes a lens adapted to receive infrared radiation from a survey scene comprising one or more gasses. The infrared camera system also includes a focal plane array comprising a plurality of quantum well infrared photo detectors (QWIPs). T…
- Who is the assignee on this patent?
- Flir Systems
- What technology area does this patent fall under?
- Primary CPC classification G01J5/061. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Sep 01 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).