Digital microscope multi-objective imaging spectrometer apparatus

An imaging spectrometer and digital micromirror technology, which is applied in the field of imaging spectroscopy, can solve the problems of undiscovered multi-point target imaging spectroscopy measurement system reports, etc., and achieve the effect of eliminating the influence of background light, simple structure, and low manufacturing cost

Inactive Publication Date: 2005-11-30
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

The high signal-to-noise ratio of moving multi-target measurement can only be obtained by non-scanning method, and there is no report on the imaging spectrum measurement system of multiple point targets in non-scanning method

Method used

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  • Digital microscope multi-objective imaging spectrometer apparatus
  • Digital microscope multi-objective imaging spectrometer apparatus
  • Digital microscope multi-objective imaging spectrometer apparatus

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Embodiment Construction

[0015] like figure 1 As shown, the present invention includes an imaging subsystem, a dimension compression subsystem, a spectral dispersion and collection subsystem and a digital micromirror circuit feedback subsystem. The front end is an imaging subsystem, which is composed of a telescope 3, a digital micromirror 4, a structural mirror 19, and collimating and focusing lenses 17, 18; the dimensionality compression subsystem consists of a cylindrical microlens array 16, a cylindrical lens 15, and a lens 14 Composition; Spectral dispersion and acquisition system consists of incident slit 13, spectrometer entrance mirror 12, blazed grating 11, spectrometer exit mirror 10, focal plane detection array 9, data acquisition card 8 and host computer 7; digital micromirror circuit feedback subsystem It consists of a beam splitter 20 , a plane detector 2 , a data acquisition card 3 , a digital image processor 5 , a computer 7 and a digital micromirror driver 6 . like figure 1 , the te...

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Abstract

This invention relates to an optical spectrum instruments of digital microscope multi-imaging, which comprises subsystems of imaging, dimensionality compression, dispersion and collection of spectrum and feedback of digital microscope circuit, wherein, the imaging subsystem comprises pre-telescope, digital microscope, collimation lens and focusing lens; the dimensionality compression subsystem comprises cylindrical micro-lens array and cylindrical lens; feedback subsystem of digital microscope circuit comprises spectroscope, focal plane detector, data gathering chip, digital image processor, computer and digital microscope driver. The invention can rapidly chose a plurality of point objects in large angular field without scanning, and can eliminate the influence of ambient light to improve the system signal-to-noise ratio.

Description

Technical field [0001] The invention relates to a multi-target imaging spectrometer device, which belongs to the technical field of imaging spectroscopy. Background technique [0002] Traditional spectrometers must scan in one dimension (X, Y, or λ) to obtain a complete data cube. The filter-type imaging spectrometer adopts the scheme of adding a camera and a filter, and needs to scan in the λ dimension; the dispersion-type imaging spectrometer projects the spectral curve of each point of the scene object onto a column of pixels of the detector through the dispersion element, and scans through space. The spectral image of the entire scene target is obtained by means of the method, that is, the data cube; the interferometric imaging spectrometer extracts the point interference curves of all sampling points on the target through the interferogram of the scene target, and the inverse Fourier transform of the point interference curve can be obtained. The spectrum of this point ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/27
Inventor 马燕春邢廷文
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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