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    SPECTRAL CHIP STRUCTURE DESIGN METHOD AND DEVICE FOR APPLICATION-SPECIFIC SPECTRAL LIBRARY
    1.
    发明公开
    SPECTRAL CHIP STRUCTURE DESIGN METHOD AND DEVICE FOR APPLICATION-SPECIFIC SPECTRAL LIBRARY 审中-公开

    公开(公告)号：US20230409792A1

    公开(公告)日：2023-12-21

    申请号：US18079706

    申请日：2022-12-12

    Applicant: TSINGHUA UNIVERSITY ,  BEIJING SEETRUM TECHNOLOGY CO., LTD.

    Inventor： Kaiyu CUI ,  Hongbo ZHU ,  Yidong HUANG ,  Wei ZHANG ,  Xue FENG ,  Fang LIU

    IPC: G06F30/337

    CPC classification number: G06F30/337 ,  G06F2111/20

    Abstract: A spectral chip structure design method includes: obtaining an application-specific spectral library, and determining a spectral principal component based on the application-specific spectral library; performing non-negative processing on the spectral principal component to obtain a non-negative spectral principal component; and determining transmission spectra of the spectral chip structure based on the non-negative spectral principal component. By summarizing spectral features of the application-specific spectral library through the spectral principal component, a quantitative evaluation for the spectral library is realized and then by designing the spectral chip structure on this basis, a targeted quantitative design on the application-specific spectral library can be realized and the accuracy of reconstructing spectra by the spectral chip can be improve

    OPTICAL MODULATION MICRO-NANO STRUCTURE, MICRO-INTEGRATED SPECTROMETER AND SPECTRUM MODULATION METHOD
    2.
    发明申请
    OPTICAL MODULATION MICRO-NANO STRUCTURE, MICRO-INTEGRATED SPECTROMETER AND SPECTRUM MODULATION METHOD 有权

    公开(公告)号：US20220178748A1

    公开(公告)日：2022-06-09

    申请号：US16978086

    申请日：2019-08-21

    Applicant: TSINGHUA UNIVERSITY

    Inventor： Kaiyu CUI ,  Xusheng CAI ,  Hongbo ZHU ,  Yidong HUANG ,  Fang LIU ,  Wei ZHANG ,  Xue FENG

    IPC: G01J3/28 ,  G01J3/02

    Abstract: An optical modulation micro-nano structure, a micro-integrated spectrometer and a spectrum modulation method are provided. The optical modulation micro-nano structure includes an optical modulation layer located on a photoelectric detection layer that can modulate incident light to form differential responses on the photoelectric detection layer, so as to obtain an original spectrum by reconstruction, thereby overcoming the defects that the existing spectrometers rely too much on precise optical components, which makes spectrometers bulky, heavy and expensive. The optical modulation layer includes a base plate and at least one modulation unit; the base plate is provided on the photoelectric detection layer, and each of the modulation units is located on the base plate; each modulation unit is provided with several modulation holes penetrating into the base plate, and respective modulation holes inside a same modulation unit are arranged into a two-dimensional graphic structure with a specific pattern.

    NONINVASIVE GLUCOMETER AND BLOOD GLUCOSE DETECTION METHOD
    3.
    发明申请
    NONINVASIVE GLUCOMETER AND BLOOD GLUCOSE DETECTION METHOD 有权

    公开(公告)号：US20220061672A1

    公开(公告)日：2022-03-03

    申请号：US16978122

    申请日：2019-08-21

    Applicant: TSINGHUA UNIVERSITY

    Inventor： Kaiyu CUI ,  Xusheng CAI ,  Hongbo ZHU ,  Yidong HUANG ,  Xue FENG ,  Fang LIU ,  Wei ZHANG

    IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1455

    Abstract: A noninvasive glucometer and a blood glucose detection method are provided. The noninvasive glucometer includes a light source, a spectrometer and detecting space into which an object to be detected intervenes; the detecting space is connected with the light source and the spectrometer respectively, so that a spectrum emitted by the light source can generate incident light entering the spectrometer after passing through the object to be detected. The spectrometer includes: an optical modulation layer configured to perform light modulation on the incident light to obtain a modulated spectrum; a photoelectric detection layer located below the optical modulation layer, and configured to receive the modulated spectrum and provide differential responses with respect to the modulated spectrum; and a signal processing circuit layer located below the photoelectric detection layer and configured to reconstruct the differential responses to obtain an original spectrum.

    MINIATURE SPECTRUM CHIP BASED ON UNITS OF DIFFERENT SHAPES, AND METHOD FOR GENERATING MICRO-NANO STRUCTURE ARRAY IN MINIATURE SPECTRUM CHIP
    5.
    发明公开
    MINIATURE SPECTRUM CHIP BASED ON UNITS OF DIFFERENT SHAPES, AND METHOD FOR GENERATING MICRO-NANO STRUCTURE ARRAY IN MINIATURE SPECTRUM CHIP 审中-公开

    公开(公告)号：US20230326946A1

    公开(公告)日：2023-10-12

    申请号：US18017829

    申请日：2021-08-03

    Applicant: TSINGHUA UNIVERSITY

    Inventor： Kaiyu CUI ,  Jiawei YANG ,  Yidong HUANG ,  Wei ZHANG ,  Xue FENG ,  Fang LIU

    IPC: H01L27/146

    CPC classification number: H01L27/14632 ,  H01L27/14627 ,  H01L27/14636 ,  H01L27/14685 ,  H01L27/14687

    Abstract: A miniature spectrum chip includes a CIS wafer and a light modulation layer. The light modulation layer includes a plurality of micro-nano structure units arranged on the surface of a photosensitive area of the CIS wafer. Each micro-nano structure unit include a plurality of micro-nano structure arrays. In each micro-nano structure unit, different micro-nano structure arrays are two-dimensional gratings formed of internal units of different shapes. In each micro-nano structure unit, internal units provided in different micro-nano structure arrays have different shapes, and each group of micro-nano structure arrays has different modulation effects on light of different wavelengths, such that the degree of freedom of “shape” is fully utilized to obtain rich modulation effects on incident light. The precision of spectral restoration is improved. By using two-dimensional grating structures based on internal units of different shapes, rich wide-spectrum modulation characteristics with regard to incident light are achieved.

    IMAGE COLLECTION CHIP, OBJECT IMAGING RECOGNITION DEVICE AND OBJECT IMAGING RECOGNITION METHOD
    6.
    发明申请
    IMAGE COLLECTION CHIP, OBJECT IMAGING RECOGNITION DEVICE AND OBJECT IMAGING RECOGNITION METHOD 有权

    公开(公告)号：US20230025329A1

    公开(公告)日：2023-01-26

    申请号：US17950568

    申请日：2022-09-22

    Applicant: TSINGHUA UNIVERSITY

    Inventor： Kaiyu CUI ,  Xusheng CAI ,  Hongbo ZHU ,  Yidong HUANG ,  Wei ZHANG ,  Xue FENG ,  Fang LIU

    IPC: H04B10/516 ,  H01L27/146

    Abstract: An image collection chip, an object imaging recognition device and an object imaging recognition method are provided. The image collection chip comprises an optical modulation layer and an image sensing layer. The optical modulation layer is located on the image sensing layer. The optical modulation layer is provided with at least two modulation units and the image sensing layer is provided with sensing units corresponding to the at least two modulation units in a form of up and down. Each of the at least two modulation units is provided with at least one modulation subunit. Two or more modulation units among the at least two modulation units have different graphic structures, and the two or more modulation units having different graphic structures have different modulation roles on spectrum.

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