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Wide-spectrum high-resolution spectral dispersion method and device

A high-resolution spectrum, wide-spectrum technology, applied in spectrum investigation and other directions, can solve the problems of limited volume, weight, high cost, and achieve the effect of high-precision dispersion, low cost, and high resolution

Active Publication Date: 2018-08-03
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

It solves the problem that the wide-spectrum high-resolution range is limited by the detector row or column pixels, and the wide-spectrum high-resolution spectroscopic instrument has a large volume, weight, and high cost.

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  • Wide-spectrum high-resolution spectral dispersion method and device

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] The wide-spectrum high-resolution spectral dispersion technology and the spectrometer of the present invention are mainly used in many fields such as material component analysis, astronomical optical signal detection, and atomic energy level detection. First, disperse the target to the direction of the row pixel or column pixel of the detector; secondly, use an image slicer to cut the primary dispersive image plane, and reflect it to different positions on the same plane; thirdly, converge the reflected beams to collimate The second dispersion is performed in the direction of the row or column pixel of the detector. Due to the different incident angles, the light of different spectral bands is gathered at different positions. After passing through the collimation system, the secondary dispersion is performed along the direction of the pri...

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Abstract

The invention relates to the technical field of dispersion type spectra, in particular to a wide-spectrum high-resolution spectral dispersion method and device. The device comprises a first dispersionsystem, an image slicer, a first light condensation module, a second collimation module, a second dispersion system and a detector which are sequentially arranged along a light path; a point target is introduced into a spectrograph system through an optical fiber, enters the first dispersion system after being collimated for light splitting and is imaged on a plane of the image splitter after being condensed, light of different spectra is split through the image splitter and reflected at different angles, convergence and collimation are achieved, secondary light splitting is performed after the light enters the second dispersion system, and the light is imaged on the face of a detector. Wide-spectrum high-resolution spectral dispersion can be achieved, and the method and device are applicable to the fields of material composition analysis, astronomical optic signal detection, atmosphere wind speed measurement and the like.

Description

technical field [0001] The invention relates to the technical field of dispersion-type spectroscopy, in particular to a wide-band high-resolution spectral dispersion method and a spectrometer. Background technique [0002] Spectral technology has a wide range of applications in remote sensing, biochemistry, environmental protection, astronomy, agriculture and many other fields. As far as spectroscopic technology is concerned, its core lies in spectroscopic technology. The current spectroscopic technology mainly includes dispersion spectroscopic spectroscopic, filter spectroscopic spectroscopic and interferometric spectroscopic spectroscopic. [0003] Optical filter is a newly developed spectroscopic element, which has many advantages such as simple structure, small size, light weight, and simple optical design, but the processing technology of optical filter is immature. Interferometric spectrometer technology is mature, and can obtain high spectral resolution in a wide spe...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/28
CPCG01J3/28Y02A90/10
Inventor 严强强魏儒义陈莎莎王爽王帅
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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