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Spectral imaging method and system for simultaneous acquisition of high spatial and high spectral resolution spectral images

A spectral imaging and spectral image technology, which is applied in spectrometry/spectrophotometry/monochromator, spectrum investigation, optical radiation measurement, etc., can solve the mutual constraints and limitations of spatial resolution and spectral resolution, etc. problem, to achieve the effect of light weight, dynamic range improvement and simple structure

Active Publication Date: 2021-07-27
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The purpose of the present invention is to provide an optical imaging method and system for simultaneously obtaining high spatial and high spectral resolution, so as to solve the technical problem of limited application due to the mutual restriction of spatial resolution and spectral resolution in the traditional spectral imaging system

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  • Spectral imaging method and system for simultaneous acquisition of high spatial and high spectral resolution spectral images
  • Spectral imaging method and system for simultaneous acquisition of high spatial and high spectral resolution spectral images
  • Spectral imaging method and system for simultaneous acquisition of high spatial and high spectral resolution spectral images

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[0057]The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0058] see figure 1 , the spectral imaging system provided by the present invention simultaneously acquires high-spatial, high-spectral-resolution spectral images, including a front imaging lens 1 and a multi-stage TDI integrated spectral spectroscopic detector 2 sequentially arranged on the same optical axis; front imaging The lens 1 is used to image the target on the multi-stage TDI integrated spectral spectroscopic detector 2; the multi-stage TDI integrated spectroscopic spectroscopic detector 2 is used to realize spectral spectroscopic, energy detection and image generation.

[0059] The multi-stage TDI integrated spectral spectroscopic detector 2 is composed of M TDI detector units 21 with the same pixel size cascaded; M≥2; the number of stages of the first TDI detector unit is s1, and each stage has p images unit; the number of stages of the secon...

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Abstract

In order to solve the technical problem of limited application due to the mutual restriction of spatial resolution and spectral resolution in the traditional spectral imaging system, the present invention provides an optical imaging method and system for simultaneously obtaining high spatial and high spectral resolution. Cascaded TDI detectors realize high spatial resolution imaging; multi-level cascaded TDI detector units are plated with different spectral band filter films or integrated optical filters to realize multi-level accumulation of spectral band energy, This increases the spectral resolution of individual spectral bands.

Description

technical field [0001] The invention belongs to the technical field of optics and spectral imaging, and relates to a spectral imaging method and system for simultaneously acquiring spectral images with high spatial resolution and high spectral resolution. The high spatial resolution and high spectral resolution mentioned in the present invention mean that the spectral resolution that can be realized at an instantaneous field angle of 1 μrad is 5nm or even narrower. Background technique [0002] Spectral imaging technology is to add spectral information on the basis of optical imaging. The final data obtained is a three-dimensional data cube, of which two dimensions are spatial information and one dimension is spectral information. It has important uses in many aspects. [0003] Spectral imaging technology can be used to identify or classify the characteristics of substances, distinguish between real and false targets, and reveal many things that cannot be seen by the naked e...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/28
CPCG01J3/2803G01J3/2823G01J2003/2826
Inventor 鱼卫星李芸高博王帅巩劭翔胡炳樑
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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