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Imaging spectral system with visible light and short-wave infrared common caliber

A technology of short-wave infrared and imaging spectroscopy, which is applied in the field of imaging spectroscopy, can solve problems such as high price, immature detector development, and affecting the application of imaging spectroscopy technology, and achieve the effects of convenient installation and adjustment, good imaging quality, and compact system structure

Inactive Publication Date: 2018-12-21
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] At present, the relatively mature development is the visible light response detector, which can realize wide-band information acquisition on a relatively small pixel, so that it can be applied to a small focal length structure with a small overall system volume to obtain high spatial resolution images and spectral information. ; As a supplement to visible light spectral information, short-wave infrared can obtain more useful information, but the development of short-wave infrared detectors in the prior art is not mature, and the price is high, which affects the application of imaging spectroscopy technology

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  • Imaging spectral system with visible light and short-wave infrared common caliber
  • Imaging spectral system with visible light and short-wave infrared common caliber
  • Imaging spectral system with visible light and short-wave infrared common caliber

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Embodiment Construction

[0018] The following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0019] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings, such as figure 1 Shown is a schematic diagram of the overall structure of a visible light and shortwave infrared co-aperture imaging spectroscopy system provided by an embodiment of the present invention. The system includes two aspheric mirrors, three single lenses, a beam splitting prism, and two striped ...

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Abstract

The invention discloses an imaging spectral system with a visible light and short-wave infrared common caliber. According to the system, a first aspheric reflector is an aspheric plano-concave reflector, and the concave surface is plated with a high-reflectivity film and faces a target; a second aspheric reflector is an aspheric plano-convex reflector, and the convex surface is plated with a high-reflectivity film and backs to the target; a beam of incident light emitted by the target is reflected by the first aspheric reflector to the second aspheric reflector; then the beam is reflected by the second aspheric reflector to enter a lens set composed of three single-lenses, and off-axis aberration is corrected through the three single-lenses; after the beam obtained after correction is split by a beam splitting prism, the beam is divided into visible light and short-wave infrared light; and the separated visible light and short-wave infrared light are imaged on a detector through modulation by two strip filters respectively. The system is compact in structure, has the advantages of a common caliber of optical structures, convenient installation and adjustment and good imaging quality, and is suitable for spectral imaging of a broad-band infinite target.

Description

Technical field [0001] The invention relates to the technical field of imaging spectroscopy, in particular to an imaging spectroscopy system with a common aperture for visible light and shortwave infrared. Background technique [0002] Light is an important carrier for carrying and transmitting information. As an important means in the field of information acquisition, imaging spectroscopy technology has been widely used in environmental remote sensing, disaster monitoring, resource detection, precision agriculture, biomedicine, and military defense. [0003] At present, the relatively mature development is the visible light response detector, which can achieve wide-band information acquisition on relatively small pixels, so that it can be applied on the small focal length structure of the overall system to obtain high spatial resolution images and spectral information ; Shortwave infrared, as a supplement to visible light spectrum information, can obtain more useful information, b...

Claims

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Application Information

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IPC IPC(8): G01J3/28G01J3/02
CPCG01J3/0205G01J3/2823
Inventor 裴琳琳王建威吕群波刘扬阳
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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