A Portable Hyperspectral Reconstructor Based on Digital Micromirror
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: 2016-03-30
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 in conjunction with the following specific drawings and embodiments. It should be understood that, for simplicity and clarity of illustration, where considered appropriate, reference numerals may be repeated among the figures to indicate corresponding or analogous elements or steps. Additionally, some specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those skilled in the art 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 a light combiner 3 . The beam splitter 1 receives the input spot and expands it according to the wavelength to form an output spot; the different wavelengths of the output spot are located in different channels of the channel select...
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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 which can effectively improve spectral resolution. Background technique [0002] Spectral spectroscopic technology has a wide range of applications in various fields such as space detection, military reconnaissance, earth resource exploration, weather forecast, environmental pollution detection, biomedicine and food safety detection. Whether in military or civilian aspects, spectral resolution is the core index of the 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 use spectral response calibration with a higher resolution for each detection element, and then invert to break through the resolution limit of the system itself. the spectral data. In this ...
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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