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    DATA CREATION APPARATUS, LIGHT CONTROL APPARATUS, DATA CREATION METHOD, AND DATA CREATION PROGRAM
    12.
    发明申请
    DATA CREATION APPARATUS, LIGHT CONTROL APPARATUS, DATA CREATION METHOD, AND DATA CREATION PROGRAM 审中-公开

    公开(公告)号：US20200218098A1

    公开(公告)日：2020-07-09

    申请号：US16732590

    申请日：2020-01-02

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Koyo WATANABE ,  Takashi INOUE

    IPC: G02F1/01 ,  G06F17/14

    Abstract: An iterative Fourier transform unit of a modulation pattern calculation apparatus performs a Fourier transform on a waveform function including an intensity spectrum function and a phase spectrum function, performs a replacement of a temporal intensity waveform function based on a desired waveform after the Fourier transform, and then performs an inverse Fourier transform. The iterative Fourier transform unit performs the replacement using a result of multiplying a function representing the desired waveform by a coefficient. The coefficient has a value with which a difference between the function after the multiplication of the coefficient and the temporal intensity waveform function after the Fourier transform is smaller than a difference before the multiplication, and a ratio of the difference is smaller when an intensity is higher at each time of the function before the multiplication.

    DATA CREATION DEVICE, LIGHT CONTROL DEVICE, DATA CREATION METHOD, AND DATA CREATION PROGRAM
    13.
    发明申请
    DATA CREATION DEVICE, LIGHT CONTROL DEVICE, DATA CREATION METHOD, AND DATA CREATION PROGRAM 审中-公开

    公开(公告)号：US20190204626A1

    公开(公告)日：2019-07-04

    申请号：US16327891

    申请日：2017-07-28

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Koyo WATANABE ,  Koji TAKAHASHI ,  Takashi INOUE

    IPC: G02F1/01 ,  G02F2/00

    CPC classification number: G02F1/01 ,  G02F2/004 ,  G02F2201/305

    Abstract: A Fourier transform is performed on a first waveform function in a frequency domain, and a second waveform function in a time domain including a temporal intensity waveform function and a temporal phase waveform function is generated. A replacement of the temporal intensity waveform function based on a desired waveform is performed for the second waveform function. The second waveform function is modified so as to bring a spectrogram of the second waveform function close to a target spectrogram generated in advance in accordance with a desired wavelength band. An inverse Fourier transform is performed on the modified second waveform function, and a third waveform function in the frequency domain is generated. Data is generated on the basis of an intensity spectrum function or a phase spectrum function of the third waveform function.

    IMAGE ACQUISITION DEVICE AND IMAGE ACQUISITION METHOD
    15.
    发明申请
    IMAGE ACQUISITION DEVICE AND IMAGE ACQUISITION METHOD 审中-公开

    公开(公告)号：US20170370844A1

    公开(公告)日：2017-12-28

    申请号：US15544405

    申请日：2016-01-12

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Naoya MATSUMOTO ,  Koyo WATANABE

    IPC: G01N21/64 ,  G02F1/133 ,  G02F1/1337 ,  G02B21/00 ,  G02B21/08

    Abstract: An image acquisition device includes a spatial light modulator modulating irradiation light, a control unit controlling a modulating pattern so that first and second light converging points are formed in an observation object, a light converging optical system converging the irradiation light, a scanning unit scanning positions of the first and second light converging points in the observation object in a scanning direction intersecting an optical axis of the light converging optical system, and a photodetector detecting first observation light generated from the first light converging point and second observation light generated from the second light converging point. The photodetector has a first detection area for detecting the first observation light and a second detection area for detecting the second observation light. The positions of the first and second light converging points are different from each other in a direction of the optical axis.

    DATA GENERATION METHOD, DATA GENERATION PROGRAM, AND DATA GENERATION DEVICE
    17.
    发明公开
    DATA GENERATION METHOD, DATA GENERATION PROGRAM, AND DATA GENERATION DEVICE 审中-公开

    公开(公告)号：US20240361620A1

    公开(公告)日：2024-10-31

    申请号：US18644329

    申请日：2024-04-24

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Koyo WATANABE ,  Takashi INOUE

    IPC: G02F1/01

    CPC classification number: G02F1/0121

    Abstract: A data generation method of the present disclosure is a method for generating data for controlling a spatial light modulator. The data generation method includes: preparing a plurality of initial phase spectrum functions; generating each of a plurality of pieces of preliminary data for controlling the spatial light modulator by using each of the plurality of initial phase spectrum functions; and selecting at least one of the plurality of pieces of preliminary data and setting the at least one piece of preliminary data as the data for controlling the spatial light modulator.

    DISPERSION MEASURING DEVICE, AND DISPERSION MEASURING METHOD
    18.
    发明公开
    DISPERSION MEASURING DEVICE, AND DISPERSION MEASURING METHOD 审中-公开

    公开(公告)号：US20240201046A1

    公开(公告)日：2024-06-20

    申请号：US18286272

    申请日：2022-03-14

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Koyo WATANABE ,  Hisanari TAKAHASHI ,  Takashi INOUE

    IPC: G01M11/00

    CPC classification number: G01M11/338

    Abstract: A dispersion measuring device includes a pulsed laser light source, a pulse forming unit, a correlator, and an arithmetic operation unit. The pulse forming unit forms an optical pulse train from an optical pulse output from the pulsed laser light source. The correlator detects a temporal waveform of correlated light formed from the optical pulse train. The arithmetic operation unit estimates a wavelength dispersion amount of an optical component disposed between the pulsed laser light source and the correlator, based on the temporal waveform of the correlated light. A dispersion medium gives a group delay dispersion to the optical pulse train to increase the peak intensity of the correlated light to be equal to or greater than a threshold value of the correlator. The pulse forming unit gives a group delay dispersion having a sign opposite to the group delay dispersion given to the optical pulse train to the optical pulse.

    IMAGING SYSTEM AND IMAGING METHOD
    19.
    发明申请
    IMAGING SYSTEM AND IMAGING METHOD 审中-公开

    公开(公告)号：US20200301174A1

    公开(公告)日：2020-09-24

    申请号：US16089400

    申请日：2017-03-15

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Koyo WATANABE ,  Koji TAKAHASHI ,  Takashi INOUE ,  Haruyasu ITO

    IPC: G02F1/01 ,  H04N5/232 ,  G02B5/30

    Abstract: An imaging system includes a light source for outputting initial pulsed light, a polarization control unit for rotating a polarization plane of the initial pulsed light, an optical pulse shaping unit for inputting the initial pulsed light with the rotated polarization plane, and outputting first pulsed light Lp1 having a first polarization direction and second pulsed light Lp2 having a second polarization direction different from the first polarization direction with a time, an irradiation optical system for irradiating an imaging object with the pulsed light Lp1 and the pulsed light Lp2, a light separation element for separating the pulsed light Lp1 and the pulsed light Lp2 reflected by or transmitted through the imaging object on the basis of the polarization directions, an imaging unit for imaging the pulsed light Lp1, and an imaging unit for imaging the pulsed light Lp2.

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