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公开(公告)号：US20230333219A1
公开(公告)日：2023-10-19
申请号：US17971660
申请日：2022-10-24
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Daisuke IGUCHI , Junichiro HAYAKAWA
IPC: G01S7/4865 , G01S7/481 , G01S17/10
CPC classification number: G01S7/4865 , G01S7/4815 , G01S7/4816 , G01S17/10
Abstract: A distance measurement system including: a light emitting unit that includes a first light emission section including a light emitting element that emits light having a first wavelength and a second light emission section including a light emitting element that emits light having a second wavelength; a drive unit that performs driving to cause light to be simultaneously emitted in both the first light emission section and the second light emission section; a light receiving unit that includes a first light reception section including a light receiving element that receives the light having the first wavelength and a second light reception section including a light receiving element that receives the light having the second wavelength; and a distance measurement unit that measures a distance to a target object from a time during which the light emitted by the light emitting unit is reflected by the target object and then is received by the light receiving unit.
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公开(公告)号：US20230333212A1
公开(公告)日：2023-10-19
申请号：US17989707
申请日：2022-11-18
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Daisuke IGUCHI , Junichiro HAYAKAWA
CPC classification number: G01S7/4815 , H01S5/426 , G01S17/10
Abstract: A light emitting element array includes: plural light emitting elements, in which, among polarization components of light emitted by the light emitting element capable of causing interference of emitted light, light intensity of a polarization component of light in a second direction intersecting with a first direction in which light emitting elements capable of causing the interference of the light are arranged is smaller than light intensity of a polarization component in the first direction.
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23.发明公开公开(公告)号：US20230243968A1
公开(公告)日：2023-08-03
申请号：US17889340
申请日：2022-08-16
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Junichiro HAYAKAWA , Tomoaki SAKITA , Kei TAKEYAMA , Daisuke IGUCHI , Takashi KONDO , Yoshihiro YAMAMOTO
Abstract: A distance measurement apparatus includes a light emitting unit that has plural light emitting elements, and is able to be driven independently in plural regions, a light receiving unit provided with plural light receiving elements that receive reflected light of light applied to an object from the light emitting unit, a shaping unit that causes an overlapping portion to be generated in which light reception of the reflected light overlaps in the adjacent regions, on the light receiving unit, a measurement unit that measures a distance to the object, from a difference between a waveform of light received by the light receiving unit and a waveform of light emitted by the light emitting unit, and a correction unit that corrects a distance difference in the reflected light in the adjacent regions, by using a distance measurement value in the overlapping portion measured by the measurement unit.
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24.发明公开公开(公告)号：US20230243937A1
公开(公告)日：2023-08-03
申请号：US17890688
申请日：2022-08-18
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Kei TAKEYAMA , Junichiro HAYAKAWA , Daisuke IGUCHI
IPC: G01S7/4861 , G01S7/487 , G01S17/89 , G01S7/4865 , G01S17/10
CPC classification number: G01S7/4861 , G01S7/4876 , G01S17/89 , G01S7/4865 , G01S17/10
Abstract: An optical detection device includes a light emitter that irradiates an area of interest; a light receiver that receives reflected light that has been emitted by the light emitter and reflected on a detection object, the light receiver including plural light-receiving elements divided into plural light reception sections; and a processor configured to perform at least one of full irradiation for irradiating the whole area of interest and full light reception for outputting all light reception results and at least one of partial irradiation for irradiating part of the area of interest and partial light reception for outputting part of the light reception results one part by one part and perform an object detection process for detecting the detection object in accordance with light received by the light receiver. The processor is configured to, based on a difference between an amount of received light received at each of the light reception sections at a time when the light emitter performs the full irradiation and an amount of received light received at each of the light reception sections at a time when the light emitter performs the partial irradiation, perform an indirect light detection process for detecting that at least one of the plural light reception sections receives indirect light when the light emitter performs the full irradiation.
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公开(公告)号：US20220336692A1
公开(公告)日：2022-10-20
申请号：US17406189
申请日：2021-08-19
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Takashi KONDO , Seiji ONO , Daisuke IGUCHI , Tomoaki SAKITA
Abstract: A light-emitting device includes one or more light-emitting units each including a light-emitting element including a function of a thyristor; an electrode for light emission to which a first voltage is applied for light emission of the light-emitting unit; and one or more light emission permission thyristors that permit the light-emitting element to emit light by a second voltage that is lower than the first voltage and set irrespective of the first voltage.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20210320479A1
公开(公告)日：2021-10-14
申请号：US17355270
申请日：2021-06-23
Applicant: FUJIFILM BUSINESS INNOVATION CORP.
Inventor： Takashi KONDO , Satoshi INADA , Takeshi MINAMIRU , Daisuke IGUCHI , Kazuhiro SAKAI , Tomoaki SAKITA , Michiaki MURATA
IPC: H01S5/42 , H01S5/026 , H01S5/183 , H01S5/02257 , H01S5/343 , H01S5/0236 , G06K9/00 , G06K9/20 , G01B11/24
Abstract: A light-emitting element array chip includes: a first light-emitting element array that includes a first light-emitting element including a first substrate, a light-emitting element layer formed on the first substrate, and a first cathode electrode electrically connected to the light-emitting element layer; and a second light-emitting element array that includes a second light-emitting element including a second substrate, a non-p-type lower reflector formed on the second substrate, and a second cathode electrode electrically connected to the non-p-type lower reflector, in which the first light-emitting element array is provided on an emission surface side of the second light-emitting element array.
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27.发明申请公开(公告)号：US20210305774A1
公开(公告)日：2021-09-30
申请号：US17109728
申请日：2020-12-02
Applicant: FUJIFILM BUSINESS INNOVATION CORP.
Inventor： Daisuke IGUCHI , Kazuhiro SAKAI , Takeshi MINAMIRU
Abstract: A light-emitting device includes a laser element array having a quadrangular planar shape, a pair of capacitors that supply an electric current for light emission of the laser element array, and a driving unit that drives the laser element array by turning on and off the electric current for light emission of the laser element array. The pair of capacitors are disposed beside two sides of the laser element array that face each other so as to sandwich the laser element array, and the driving unit is disposed beside another side of the laser element array.
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公开(公告)号：US20210265811A1
公开(公告)日：2021-08-26
申请号：US17138907
申请日：2020-12-31
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Daisuke IGUCHI
Abstract: A light-emitting device includes an insulating base member having thermal conductivity of 10 W/m·K or more; a light-emitting element provided on a front surface side of the base member; a first rear surface wire that is provided on a rear surface side of the base member and is connected to one of a cathode electrode and an anode electrode of the light-emitting element; a second rear surface wire that is provided on the rear surface side of the base member and is connected to the other one of the cathode electrode and the anode electrode; and a reference potential wire that is provided on the rear surface side of the base member and is connected to an external reference potential.
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公开(公告)号：US20240349412A1
公开(公告)日：2024-10-17
申请号：US18582597
申请日：2024-02-20
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Kei TAKEYAMA , Daisuke IGUCHI , Emiko SHIRAISHI , Junichiro HAYAKAWA
IPC: H05B47/16 , G01S7/484 , G01S17/10 , G01S17/89 , H05B47/155 , H05B47/165
CPC classification number: H05B47/16 , G01S7/484 , G01S17/10 , G01S17/89 , H05B47/155 , H05B47/165
Abstract: A drive device is configured to: cause a light emitting device including plural light emitting sections to emit light such that each of the light emitting sections has a predetermined plural light emitting periods and a light non-emitting period following each of the light emitting periods; and switch a second light emitting section other than a first light emitting section among the plural light emitting sections, which has a light emitting period to be included in a light non-emitting period of the first light emitting section.
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公开(公告)号：US20230402819A1
公开(公告)日：2023-12-14
申请号：US18447763
申请日：2023-08-10
Applicant: FUJIFILM BUSINESS INNOVATION CORP.
Inventor： Daisuke IGUCHI
IPC: H01S5/042 , H01S5/02315 , G01S7/484 , G01S17/10
CPC classification number: H01S5/0428 , H01S5/02315 , G01S7/484 , G01S17/10 , H01S5/423
Abstract: A light emitting device includes: a light emitting element; a switch element that is connected in series to one of electrodes of the light emitting element, and that drives the light emitting element; a capacitive element that is connected in parallel to the light emitting element, and that discharges a charged electric charge to the light emitting element; and a resistance element provided between the capacitive element and a power supply that charges the capacitive element on a same base.
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