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Circular polarization hyperspectral image detection system

A hyperspectral imaging and detection system technology, applied in the field of circular polarization hyperspectral imaging and detection systems, can solve the problems of inability to obtain circular polarization information, achieve high optical utilization efficiency, increase acquisition ability, and avoid vibration noise

Inactive Publication Date: 2013-01-16
XI AN JIAOTONG UNIV
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Problems solved by technology

Although the above two methods have the advantages of structure and sensitivity, they cannot obtain circular polarization information

Method used

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  • Circular polarization hyperspectral image detection system

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] See attached figure 1 The circular polarization hyperspectral imaging detection system of the present invention consists of an incident light collimation system 100 , a birefringent spectroscopic system 200 , an imaging lens 300 , and an image acquisition and processing system 400 arranged in sequence along the incident light direction.

[0025] The incident light collimation system 100 is composed of an objective lens 102, a field stop 103 and a collimator lens 104 which are sequentially arranged along the incident light direction; 201, a birefringent prism pair 202, a birefringent wave plate pair 203, and a polarizer 204; the image acquisition and processing system 400 is composed of an area array detector 401, connecting wires 402, and a data processing and display system 403;

[0026] Wherein the field stop 103 is located ...

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Abstract

The invention relates to a hyperspectral image detection system capable of simultaneously acquiring left-hand and right-hand circular polarization components of a target. The system includes a pre-positioned collimation system, a double-refraction beam splitting system, an imaging lens and an image acquisition and processing system that are sequentially arranged in the direction of incoming rays. According to the invention, a double-channel circular polarization detection system is adopted to simultaneously acquire an interference figure of the left-hand and right-hand circular polarization components of a target, the detection system improves the capability of acquiring a difference circular polarization spectral image as compared with the single-channel polarization imaging spectrometer only capable of detecting a single linear polarization component, avoids quiver noise as compared with the sequence acquisition technology adopting a rotary component, can be used for acquiring the circular polarization spectral image of the target within a wide band range from the ultraviolet band to the infrared band, and has potential application values in the fields of space exploration, earth remote sensing, machine vision, biomedical diagnosis and the like.

Description

【Technical field】 [0001] The invention belongs to the technical field of optical image processing instruments, and relates to a Fourier transform imaging spectrometer used in the field of imaging spectrum, in particular to a circular polarization hyperspectral imaging detection system. 【Background technique】 [0002] The light emitted by the target not only has spectral characteristics, but also has certain polarization properties. If the spectral and polarization information of the target can be described quantitatively, it can provide a powerful tool for target identification and evaluation. Currently, two important remote sensing technologies that can obtain polarization and spectral information are polarimetry and spectroscopy, and their combination can detect targets with multiple information. Circularly polarized light is a kind of polarized light. Both natural and artificial objects will reflect or radiate circularly polarized light, especially metal surfaces or scatt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/447
Inventor 穆廷魁张淳民
Owner XI AN JIAOTONG UNIV
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