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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 reports of multiple point target imaging spectroscopy measurement systems, and achieve the effects of eliminating the influence of background light, low manufacturing cost and simple structure.

Inactive Publication Date: 2011-05-04
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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

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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 a certain dimension (X, Y or λ) to obtain a complete data cube. The filter-type imaging spectrometer adopts the camera and filter scheme, which needs to be scanned in the λ dimension; the dispersive imaging spectrometer uses the dispersive element to project the spectral curve of each point of the scene target onto a column of pixels of the detector, and scan through space Obtain the spectrum image of the entire scene target, that is, the data cube; the interference imaging spectrometer extracts the point interference curve of all sampling points on the target through the interferogram of the scene target, and performs inverse Fourier transformation on the point interference curve to obtain the spectrum of the point. Curve, also need to scan the data cube by chan...

Claims

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Application Information

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