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    LIGHT SOURCE APPARATUS
    182.
    发明公开
    LIGHT SOURCE APPARATUS 审中-公开

    公开(公告)号：US20230333010A1

    公开(公告)日：2023-10-19

    申请号：US18300219

    申请日：2023-04-13

    Applicant: USHIO DENKI KABUSHIKI KAISHA

    Inventor： Takuma YOKOYAMA ,  Aya OTA

    IPC: G01N21/31 ,  G02B6/42 ,  G02B6/293

    CPC classification number: G01N21/31 ,  G02B6/4215 ,  G02B6/29301 ,  G02B6/4286 ,  G01N2201/0696 ,  G01N2201/0826

    Abstract: A light source apparatus generates wavelength scanning light. A pulsed light source generates pulsed light including a continuous spectrum. An optical divider spatially divides the broadband pulsed light L into a plurality of n (n≥2) beams according to wavelengths. A plurality of n fibers give different delays to the n beams. The coupler multiplexes n beams output from the n fibers. In the light source apparatus, at least a part from an incident end of the optical divider to emission ends of the n fibers has a continuous waveguide structure. A light monitoring device extracts and measures part of light propagating through the continuous waveguide structure.

    PLANT FLUOROMETER FOR REMOTE DETECTION OF GROWTH DYNAMICS
    183.
    发明公开
    PLANT FLUOROMETER FOR REMOTE DETECTION OF GROWTH DYNAMICS 审中-公开

    公开(公告)号：US20230176026A1

    公开(公告)日：2023-06-08

    申请号：US17944569

    申请日：2022-09-14

    Applicant: RENSSELAER POLYTECHNIC INSTITUTE

    Inventor： Matthew R. Urschel ,  Andrew Turk ,  Tessa Hilary Pocock

    IPC: G01N33/00 ,  G01N21/64

    CPC classification number: G01N33/0098 ,  G01N21/64 ,  G01N2201/062 ,  G01N2201/0696

    Abstract: An apparatus for remote detection of plant growth dynamics is described. The apparatus includes an excitation LED (light emitting diode) module, a detection module and a controller module coupled to the excitation LED module and the detection module. The excitation LED module includes at least one LED. Each LED is configured to emit an excitation light in response to an excitation control signal. The excitation light has an emitted light spectrum.
    The detection module includes a photodetector configured to detect an initial chlorophyll a fluorescence (“ChlF”) light and an excited ChlF light from a plant species. The photodetector is further configured to convert the detected initial ChlF light into an initial detection electrical signal and the detected excited ChlF light into an excited detection electrical signal. The excited ChlF light is emitted from the plant species in response to receiving the excitation light.
    The controller module is configured to provide the excitation control signal to the excitation module, to capture the initial and excited detection electrical signals from the detection module and to determine chlorophyll fluorescence data based, at least in part, on the initial and excited detection electrical signals. The excitation LED module and the detection module are configured to be positioned remotely from the plant species. The chlorophyll fluorescence data represents a growth characteristic of the plant species.

    METHOD FOR DETERMINING THE REFLECTANCE OF AN OBJECT AND ASSOCIATED DEVICE
    184.
    发明申请
    METHOD FOR DETERMINING THE REFLECTANCE OF AN OBJECT AND ASSOCIATED DEVICE 审中-公开

    公开(公告)号：US20180284020A1

    公开(公告)日：2018-10-04

    申请号：US15764603

    申请日：2016-09-30

    Applicant: COLOR GRAIL RESEARCH

    Inventor： Rémi VAUCLIN ,  Franck HENNEBELLE

    IPC: G01N21/55 ,  G01N21/31

    CPC classification number: G01N21/55 ,  G01J3/10 ,  G01J2003/425 ,  G01N21/31 ,  G01N2201/0221 ,  G01N2201/0616 ,  G01N2201/0696

    Abstract: Disclosed is a method for determining the reflectance of an object, the method including a step of solving an equation having several unknowns, the equation being obtained from formed images, the reflectance of the object and the illumination of the external light source being two unknowns of the equation. The step of solving the equation includes: calculating solution points of the equation, interpolating the calculated points by way of an interpolation function, and using at least one of the following approximations to solve the equation: a first approximation according to which each image is derived from the emission of a separate light flash, a second approximation according to which the interpolation function determines the stability points of the equation.

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