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    Spectral detector and spectral detecting method using the same
    161.
    发明授权
    Spectral detector and spectral detecting method using the same 有权

    公开(公告)号：US10393585B2

    公开(公告)日：2019-08-27

    申请号：US15799220

    申请日：2017-10-31

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sookyoung Roh ,  Sunghyun Nam

    IPC: G01J3/42 ,  G01J3/18 ,  G01J3/28 ,  G01J3/02

    Abstract: A spectral detector includes a grating panel including a first grating pattern having a first period, a second grating pattern having a second period that is different from the first period, and a light exit surface through light exits the grating panel, and an optical measurement panel arranged to face the light exit surface of the grating panel, and configured to measure a change in intensity of first light passing through the first grating pattern according to a propagation distance of the first light, and to measure a change in intensity of second light passing through the second grating pattern according to a propagation distance of the second light.

    Compact spectroscopic optical instrument
    162.
    发明授权
    Compact spectroscopic optical instrument 有权

    公开(公告)号：US10386232B2

    公开(公告)日：2019-08-20

    申请号：US15844228

    申请日：2017-12-15

    Applicant: Horiba Instruments Incorporated

    Inventor： Ronald Joseph Kovach ,  Salvatore Hauptmann Atzeni

    IPC: G01J3/28 ,  G01J3/02 ,  G01J3/18 ,  G01J3/42

    Abstract: An optical instrument for spectroscopy applications includes a compact arrangement having a three-dimensional folded optical path. A plate configured as an optical reference plane is secured to a housing and is configured to secure optical components above or below the plate. A modular light source module may be secured within the housing without fasteners. A monochromator and spectrometer are secured below the plate. Mirrors disposed above the plate are configured to direct light from the monochromator passing through a first opening in the plate through a sample disposed above the plate, and to direct light from the sample through a second opening in the plate to the spectrometer. A controller is configured for communication with the monochromator and the spectrometer. The controller may control an entrance slit actuator for the spectrometer and positioning of an aperture upstream of the spectrometer to adjust resolution and throughput.

    Near-infrared time-of-flight remote sensing
    163.
    发明授权
    Near-infrared time-of-flight remote sensing 有权

    公开(公告)号：US10386230B1

    公开(公告)日：2019-08-20

    申请号：US16188194

    申请日：2018-11-12

    Applicant: OMNI MEDSCI, INC.

    Inventor： Mohammed N. Islam

    IPC: G01J3/00 ,  G01J3/02 ,  G01J3/28 ,  G01J3/42

    Abstract: A smart phone or tablet includes laser diodes configured to be pulsed and generate near-infrared light between 700-2500 nanometers. Lenses direct the light to a sample. A detection system includes a photodiode array with pixels coupled to CMOS transistors, and is configured to receive light reflected from the sample, to be synchronized to the light from the laser diodes, and to perform a time-of-flight measurement of a time difference between light from the laser diodes and light reflected from the sample. The detection system is configured to convert light received while the laser diodes are off into a first signal, and light received while at least one laser diodes is on, which includes light reflected from the sample, into a second signal. The smart phone or tablet is configured to difference the first signal and the second signal and to generate a two-dimensional or three-dimensional image using the time-of-flight measurement.

    Device with a quantum well layer
    170.
    发明授权
    Device with a quantum well layer 有权

    公开(公告)号：US10326036B2

    公开(公告)日：2019-06-18

    申请号：US15636775

    申请日：2017-06-29

    Applicant: ASTRIUM LIMITED

    Inventor： Stephen Sweeney ,  Yaping Zhang

    IPC: H01L31/0352 ,  G02B6/293 ,  G01J3/02 ,  G01J3/42 ,  G02F1/017 ,  B82Y20/00 ,  G06F17/50 ,  H01L27/144 ,  H01L31/0232 ,  G02F1/015

    Abstract: A device for guiding and absorbing electromagnetic radiation, the device including: absorbing means for absorbing the electromagnetic radiation; and a coupled to the absorbing means for guiding the electromagnetic radiation to the absorbing means, wherein the waveguide and the absorbing means are formed from a structure including a first cladding layer, a second cladding layer over the first cladding layer, and a quantum-well layer between the first and second cladding layers, the quantum-well layer being formed of a material having a different composition to the first and second cladding layers, wherein the thickness and the composition of the quantum-well layer is optimised to provide an acceptable level of absorption of electromagnetic radiation in the waveguide while providing an appropriate band gap for absorption of the electromagnetic radiation in the absorbing means.

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