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Non-refrigeration type multiband far infrared thermal imager

An infrared thermal imager, multi-band technology, applied in instruments, scientific instruments, measuring devices, etc., can solve the problems of low spectral efficiency and low transmission rate, and achieve the effects of high imaging quality and improved spectral efficiency and transmission rate.

Inactive Publication Date: 2010-06-09
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0004] In order to overcome the shortcomings of low spectral efficiency and low transmission rate of infrared multi-spectral scanning thermal imagers in the prior art, the present invention provides an uncooled multi-band far-infrared thermal imager, which can , so that the infrared radiation passes through multiple infrared bandpass filters to realize multi-band far-infrared imaging function, which can improve the spectral efficiency and transmission rate

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  • Non-refrigeration type multiband far infrared thermal imager
  • Non-refrigeration type multiband far infrared thermal imager
  • Non-refrigeration type multiband far infrared thermal imager

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Embodiment Construction

[0017] refer to Figure 1-7 . The invention comprises a filter wheel system 1, an 8-14 micron infrared thermal imaging camera 2, a filter wheel controller system 3, a computer 4 and an image acquisition system. The rotation of the wheel of the filter wheel system 1 is controlled by the filter wheel control system 3 to collect infrared images of different bands, and realize infrared multi-band imaging. The filter wheel system 1 is fixed between the lens and the focal plane of the infrared multi-band thermal imager 2, so that each channel 11-16 on the wheel of the filter wheel system 1 is located on the optical path 9 between the lens and the focal plane , the filter wheel drive controller system 3 is electrically connected to the filter wheel system 1 through the wheel control transmission line 7, the filter wheel drive controller system 3 is electrically connected to the computer 4 through the control line 8, and the infrared The multi-band thermal imager 2 is electrically c...

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Abstract

The invention discloses a non-refrigeration type multiband far infrared thermal imager which is used for remote extensive far infrared multiband imaging. The invention is characterized in that an optical filter runner system is fixed between the lens and the focal plane of the infrared thermal imager, the 8-9mm optical filter, 9-10mm optical filter, 10-11mm optical filter and 11-12 optical filter on the runners of the optical filter runner system are located on the light path between the lens and the focal plane, a controller system controls a transmission line to be electrically connected with the optical filter runner system by the runners, and is electrically connected with a computer via a control circuit, and the infrared thermal imager is electrically connected with an image collecting system via the image data transmission line. As the runners are embedded in infrared bandpass filters, the infrared radiation can realize the function of multiband far infrared imaging respectively via the plural infrared bandpass filters with the efficiency increased to over 90% from 83.3% in the prior art.

Description

technical field [0001] The invention relates to a far-infrared thermal imager, in particular to an uncooled multi-band far-infrared thermal imager. Background technique [0002] refer to Figure 8 , the document "Application No. 99125191.1 Chinese Invention Patent" discloses an infrared multi-spectral scanning thermal imager, including a focusing telescopic system, a dichroic mirror, a detector, etc., wherein the scanning mirror is a plane mirror, and its normal line is aligned with the axis of rotation. Angle, a focusing telescopic system is provided on the optical path of the scanning mirror, and a reference blackbody disk and a dichroic mirror are provided on the optical axis after the focusing telescopic system. The dichromatic mirror divides the beam into three bands and two channels, and passes through The lenses are focused on thermal infrared detectors and visible / near infrared detectors. The thermal imager is a catadioptric system, which uses a dichroic mirror to d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/10G01J5/02
CPCG01J5/08G01J5/0806G01J5/602G01J2005/0077
Inventor 赵永强程咏梅潘泉高仕博陈超
Owner NORTHWESTERN POLYTECHNICAL UNIV