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公开(公告)号：US20180210069A1
公开(公告)日：2018-07-26
申请号：US15749516
申请日：2016-06-21
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Mitsuhito MASE , Shinya IWASHINA , Takashi SUZUKI
IPC: G01S7/486 , G01S17/10 , H01L31/107 , H01L31/167
CPC classification number: G01S7/486 , G01S7/4861 , G01S17/10 , G01S17/42 , G01S17/936 , H01L31/107 , H01L31/167
Abstract: A distance measuring device is configured to measure a distance to an object. The distance measuring device includes a light source configured to emit a projection beam to the object and a light receiving element configured to detect return light of the projection beam that is reflected by the object. The light source is a laser light source configured to emit pulsed light in an ultraviolet range to a blue color range as the projection beam, and the light receiving element is an avalanche photodiode that has spectral sensitivity in an ultraviolet range to a blue color range and operates in a Geiger mode.
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公开(公告)号：US20170047470A1
公开(公告)日：2017-02-16
申请号：US15305371
申请日：2015-04-23
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Koei YAMAMOTO , Hiroshi OKAMOTO , Masaomi TAKASAKA , Yuki OKUWA , Shinya IWASHINA
IPC: H01L31/16 , H01L31/0232 , H01L33/60
CPC classification number: H01L31/165 , G01C2009/066 , H01L31/02325 , H01L33/60
Abstract: An optical sensor includes: a light emitting element 40; a lower substrate 20 on which the light emitting element 40 is provided; an upper substrate 10 provided so that the light emitting element 40 is positioned between the upper substrate 10 and the lower substrate 20; and an optical block 30 provided on the upper substrate 10. The upper substrate 10 includes a division-type photodiode SD. The optical block 30 is configured to reflect light emitted from the light emitting element 40 toward a measurement target R, and light reflected by the measurement target R is incident onto the division-type photodiode SD.
Abstract translation: 光学传感器包括：发光元件40; 设置有发光元件40的下基板20; 设置为使得发光元件40位于上基板10和下基板20之间的上基板10; 以及设置在上基板10上的光学块30.上基板10包括分割型光电二极管SD。 光学块30被配置为将从发光元件40发射的光朝向测量对象R反射，并且由测量对象R反射的光入射到分割型光电二极管SD上。
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公开(公告)号：US20250116551A1
公开(公告)日：2025-04-10
申请号：US18834338
申请日：2023-01-27
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Riku SHIMADA , Takuya FUJITA , Takashi BABA , Shunsuke ADACHI , Shinya IWASHINA
IPC: G01J1/44
Abstract: In a signal processing circuit, an input terminal is configured to receive an analog signal output from an avalanche photodiode operating in Geiger mode. A comparison circuit outputs a signal based on a component exceeding a threshold among components a signal input to the comparison circuit. The adjustment circuit includes an AC coupling unit, a level shifter unit, and a reference value adjustment unit. The AC coupling unit establishes AC coupling between the input terminal and the comparison circuit. The level shifter unit adjusts the voltage of the signal input to the comparison circuit to a value lower than a reverse bias voltage applied to the avalanche photodiode. The reference value adjustment unit adjusts the reference value of the signal input to the comparison circuit.
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公开(公告)号：US20220299752A1
公开(公告)日：2022-09-22
申请号：US17833950
申请日：2022-06-07
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Daiki SUZUKI , Shinya IWASHINA , Yuki MORINAGA
Abstract: An optical module includes a mirror unit having a movable mirror portion, a magnet portion configured to generate a magnetic field acting on the movable mirror portion, and a package accommodating the magnet portion. The magnet portion has a Halbach structure including a first magnet applied with a force in a first direction, and a second magnet applied with a force in a second direction. The package has a bottom walls portion, a side wall portion, and a restriction portion configured to restrict movement of the second magnet in the second direction. The movable mirror portion is disposed in a space formed by the restriction portion.
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5.发明申请公开(公告)号：US20200166748A1
公开(公告)日：2020-05-28
申请号：US16621396
申请日：2018-06-11
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Shinya IWASHINA
Abstract: A scanning-type display device includes: a light source which emits projection-display laser light; an optical scanning unit which uses the laser light emitted from the light source in scanning; and a light diffusion unit which includes a plurality of light diffusion channels arranged in two dimensions and diffuses the laser light used in scanning by the optical scanning unit. The light diffusion unit is configured so that an angle formed by optical paths extending to an eye of an observer through a pair of adjacent light diffusion channels arbitrarily selected from among the plurality of light diffusion channels becomes equal to or larger than an angle set on the basis of a resolution angle of the eye.
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Patent Agency Ranking
公开(公告)号：US20240393172A1
公开(公告)日：2024-11-28
申请号：US18691084
申请日：2022-09-07
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Shinya IWASHINA , Terumasa NAGANO , Masanori OKADA , Shunsuke ADACHI , Takuya FUJITA
Abstract: In a light detection device, each pixel includes a plurality of APDs. Each APD forms a light receiving region and is configured to operate in a Geiger mode. The plurality of APDs forms a plurality of light receiving regions arranged in a direction along a main surface in a pixel area α occupied by a corresponding pixel among a plurality of pixels. The MOS switch circuit region overlaps with the plurality of light receiving regions when viewed from a Z-axis direction. When viewed from the Z-axis direction, the area of the MOS switch circuit region is greater than the area of one light receiving region formed in the pixel area, and less than or equal to the area of the pixel area. A plurality of APDs included in each pixel is electrically connected in parallel to each other and each is connected to a MOS switch circuit.
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公开(公告)号：US20240387754A1
公开(公告)日：2024-11-21
申请号：US18691119
申请日：2022-08-10
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Shinya IWASHINA , Terumasa NAGANO , Masanori OKADA , Shunsuke ADACHI , Takuya FUJITA
IPC: H01L31/02 , H01L31/107
Abstract: In a light detection device, switches are connected in parallel to each other. Each of the switches is connected to an APD. A read line electrically connects the switch and a signal processor to each other. The switch is configured such that a second terminal is connected to the read line and a voltage greater than or equal to a breakdown voltage is applied to the APD in a conductive state. The switch is configured such that the second terminal is not connected to the read line and a voltage greater than or equal to a breakdown voltage is applied to the APD in the conductive state. The switch is configured such that the second terminal is not connected to the read line and a voltage less than a breakdown voltage is applied to the APD in the conductive state.
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8.发明公开公开(公告)号：US20240304644A1
公开(公告)日：2024-09-12
申请号：US18668750
申请日：2024-05-20
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Shinya IWASHINA , Shunsuke Adachi , Shigeyuki Nakamura , Terumasa Nagano , Ryutaro Tsuchiya
IPC: H01L27/146 , G01S7/497 , G01S17/89 , H01L31/107 , H04N25/766
CPC classification number: H01L27/14623 , H01L27/1463 , H01L27/14636 , H01L27/14643 , H01L27/14685 , H04N25/766 , G01S7/497 , G01S17/89 , H01L31/107
Abstract: Each of a plurality of cells includes at least one avalanche photodiode. A light projecting unit is arranged to project light having a cross-sectional shape whose longitudinal direction corresponds to a first direction. The light projecting unit is arranged to scan the light along a second direction intersecting the first direction such that the reflected light is incident on, among N cell groups each of which includes M cells aligned in a row direction, each cell group or each plurality of cell groups. A controller is arranged to apply, in accordance with the incidence of the reflected light, a bias voltage that makes the avalanche photodiode operate in a Geiger mode to each cell group or each plurality of cell groups, and is arranged to read signals from cells included in the cell group or the plurality of cell groups to which the bias voltage has been applied.
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公开(公告)号：US20210344864A1
公开(公告)日：2021-11-04
申请号：US17258947
申请日：2019-06-06
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Shinya IWASHINA , Shunsuke ADACHI , Shigeyuki NAKAMURA , Terumasa NAGANO , Ryutaro TSUCHIYA
IPC: H04N5/374 , H01L27/146
Abstract: Each of a plurality of cells includes at least one avalanche photodiode. A light projecting unit is arranged to project light having a cross-sectional shape whose longitudinal direction corresponds to a first direction. The light projecting unit is arranged to scan the light along a second direction intersecting the first direction such that the reflected light is incident on, among N cell groups each of which includes M cells aligned in a row direction, each cell group or each plurality of cell groups. A controller is arranged to apply, in accordance with the incidence of the reflected light, a bias voltage that makes the avalanche photodiode operate in a Geiger mode to each cell group or each plurality of cell groups, and is arranged to read signals from cells included in the cell group or the plurality of cell groups to which the bias voltage has been applied.
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公开(公告)号：US20180148314A1
公开(公告)日：2018-05-31
申请号：US15316549
申请日：2015-06-10
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Sadaharu TAKIMOTO , Shinya IWASHINA , Masakuni KIMOTO , Yuki MORINAGA
CPC classification number: B81B3/001 , B81B3/00 , B81C3/00 , B81C3/001 , G02B7/1821 , G02B26/085 , G02B26/101
Abstract: A mirror drive device includes a support part, a movable part, a permanent magnet forming a magnetic field in the periphery of the movable part, and a circuit board disposed between the support part and the permanent magnet in a facing direction of a pair of principal surfaces of the movable part so as to cause the movable part to be positioned at an inside of the circuit board when viewed in the facing direction. The movable part includes a mirror disposition portion, a mirror disposed and a drive coil so as to face the permanent magnet. The support part includes a base portion connected to a connection member and a reinforcing portion extending from the base portion toward a side away from the permanent magnet and the circuit board. The drive coil is connected to electrodes by lead-out conductors.
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