Portable hyperspectral reconstitution device based on digital micro reflector
A digital micro-mirror and reconstructor technology, applied in the field of spectral analysis, can solve the problems of inaccurate spectral response calibration and low spectral resolution, and achieve the effect of improving the sensitivity of the system
Active Publication Date: 2015-02-18
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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[0004] The invention proposes a portable hyperspectral reconstructor based on a digital micro-mirror to solve the problems of low spectral resolution and inaccurate spectral response calibration in modern digital transformation spectroscopy technology
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[0014] The present invention will be further described in detail with reference to the following specific drawings and embodiments. It will be understood that, for brevity and clarity of illustration, where considered appropriate, reference numerals have been repeated among the various figures to indicate corresponding or analogous elements or steps. Furthermore, some specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, one skilled in the art will understand that the embodiments described herein may be practiced without these specific details.
[0015] see figure 1 , which shows a diagram of a spectral reconstructor comprising a beam splitter 1 , a channel selector 2 and an optical concentrator 3 . The beam splitter 1 receives the input light spot and expands it according to the wavelength to form an output light spot; the different wavelength parts of the output light spot are located in the different chan...
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The invention discloses a portable hyperspectral reconstitution device based on a digital micro reflector. The portable hyperspectral reconstitution device comprises a light splitter, a channel selector and a light converging device. The light splitter splits light entering a system according to different wavelengths and outputs the split light. Different space channels control transmission of converging light spots with different wavelengths, and the channel selector can freely select that the light spots of which channel can enter a follow-up system. The light converging device converges the light spots of the different channels into a tiny light spot and outputs the light spot. The reconstitution device can perform high-precision spectrum calibration on each channel in advance by the aid of a standard light source and a large high-precision spectrometer, and then reconstructs spectral data capable of breaking through system spectral resolution limits by combining actually-measured sample spectrum curves, thereby improving the spectrum resolution capability of a portable spectrum system.
Description
technical field [0001] The invention belongs to the technical field of spectral analysis, and in particular relates to a portable hyperspectral reconstructor that can effectively improve spectral resolution. Background technique [0002] Spectroscopic spectroscopy is widely used in various fields such as space exploration, military reconnaissance, earth resource exploration, weather forecasting, environmental pollution detection, biomedicine and food safety detection. Whether in military or civilian life, spectral resolution is the core indicator of a spectrometer system. Since the development of spectral technology, there have been some reconstruction algorithms that can effectively improve the spectral resolution in theory. These reconstruction algorithms mainly break through the resolution limit of the system by performing a higher-resolution spectral response calibration on each detection element. spectral data. In this process, the more accurate and finer the spectral...
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IPC IPC(8): G01J3/28
Inventor 袁小文陈飞良王玘孙聊新王少伟张波陆卫
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI