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公开(公告)号：US20230358606A1
公开(公告)日：2023-11-09
申请号：US18139426
申请日：2023-04-26
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Soh UENOYAMA , Takuya HASHIMOTO
CPC classification number: G01J1/44 , G01J1/0411 , G01J2001/4466
Abstract: The light detector includes a light detection substrate having at least one light receiving region and a light incident surface on which a detection target light is incident, and a meta-lens including a plurality of unit structures arranged in a grid pattern and disposed on the light incident surface to focus the detection target light. When viewed in a thickness direction of the light detection substrate, an opening region in which no unit structure is formed is provided in a region including a center of the meta-lens.
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公开(公告)号：US20210249842A1
公开(公告)日：2021-08-12
申请号：US16972825
申请日：2019-06-04
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Kazuyoshi HIROSE , Takahiro SUGIYAMA , Yuu TAKIGUCHI , Yoshiro NOMOTO , Soh UENOYAMA
Abstract: A light emission device of one embodiment reduces zero-order light included in output of an S-iPM laser. The light emission device includes a light emission unit and a phase modulation layer. The phase modulation layer has a base layer and modified refractive index regions each including modified refractive index elements. In each unit constituent region centered on a lattice point of an imaginary square lattice set on the phase modulation layer, the distance from the corresponding lattice point to each of the centers of gravity of the modified refractive index elements is greater than 0.30 times and is not greater than 0.50 times of the lattice spacing. In addition, the distance from the corresponding lattice point to the center of gravity of the modified refractive index elements as a whole is greater than 0 and is not greater than 0.30 times of the lattice spacing.
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公开(公告)号：US20240145493A1
公开(公告)日：2024-05-02
申请号：US18279263
申请日：2021-12-09
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Soh UENOYAMA
IPC: H01L27/144 , H01L31/0232
CPC classification number: H01L27/1446 , H01L31/02327
Abstract: There is provided a photodetector including: a photodetecting element having a surface and including a plurality of light-receiving regions arranged along the surface; and a plurality of meta-lens portions arranged on the surface to correspond to the plurality of light-receiving regions, wherein, in one light-receiving region and one meta-lens portion corresponding to each other among the plurality of light-receiving regions and the plurality of meta-lens portions, the one meta-lens portion includes a plurality of meta-lenses arranged along the surface.
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公开(公告)号：US20220381927A1
公开(公告)日：2022-12-01
申请号：US17747107
申请日：2022-05-18
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Ryosuke OTA , Soh UENOYAMA
IPC: G01T1/20
Abstract: A radiation detector of one embodiment includes: a scintillator configured to generate first scintillation light having a first peak wavelength and second scintillation light having a second peak wavelength in response to radiation incidence; a photodetection unit configured to detect the scintillation light generated by the scintillator; and a filter layer disposed between the scintillator and the photodetection unit and configured to selectively block the first scintillation light. The filter layer has a metasurface structure.
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5.发明申请公开(公告)号：US20190288483A1
公开(公告)日：2019-09-19
申请号：US16433127
申请日：2019-06-06
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takahiro SUGIYAMA , Yuu TAKIGUCHI , Yoshitaka KUROSAKA , Kazuyoshi HIROSE , Yoshiro NOMOTO , Soh UENOYAMA
Abstract: The present embodiment relates to a single semiconductor light-emitting element including a plurality of light-emitting portions each of which is capable of generating light of a desired beam projection pattern and a method for manufacturing the semiconductor light-emitting element. In the semiconductor light-emitting element, an active layer and a phase modulation layer are formed on a common substrate layer, and the phase modulation layer includes at least a plurality of phase modulation regions arranged along the common substrate layer. The plurality of phase modulation regions are obtained by separating the phase modulation layer into a plurality of places after manufacturing the phase modulation layer, and as a result, the semiconductor light-emitting element provided with a plurality of light-emitting portions that have been accurately aligned can be obtained through a simple manufacturing process as compared with the related art.
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Patent Agency Ranking
公开(公告)号：US20180074227A1
公开(公告)日：2018-03-15
申请号：US15701918
申请日：2017-09-12
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Yoshiro NOMOTO , Yoshitaka KUROSAKA , Kazuyoshi HIROSE , Takahiro SUGIYAMA , Soh UENOYAMA
CPC classification number: G02B1/002 , G02B5/008 , G02F1/19 , G02F2202/101 , G02F2202/30
Abstract: A metasurface is capable of modulating input light including a wavelength in a range of 880 nm to 40 μm. The metasurface includes: a GaAs substrate including a light input surface into which input light is input and a light output surface facing the light input surface; an interlayer having a lower refractive index than GaAs and disposed on the light output surface side of the GaAs substrate; and a plurality of V-shaped antenna elements disposed on a side of the interlayer which is opposite to the GaAs substrate side and including a first arm and a second arm continuous with one end of the first arm.
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公开(公告)号：US20230035423A1
公开(公告)日：2023-02-02
申请号：US17787976
申请日：2020-12-23
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Kazuyoshi HIROSE , Yoshitaka KUROSAKA , Soh UENOYAMA
Abstract: This disclosure relates to a spatial light modulator, etc., the spatial light modulator being capable of dynamically controlling the phase distribution of light, and provided with a structure having a smaller pixel arrangement period and suitable for high-speed operation. The spatial light modulator includes a substrate. The substrate has a front surface, a back surface, and through-holes arranged one-dimensionally or two-dimensionally and penetrating between the front surface and the back surface. The spatial light modulator further includes layered structures each covering the inner walls of the through-holes. Each layered structure includes a first electroconductive layer on the inner wall, a dielectric layer on the first electroconductive layer and having optical transparency, and a second electroconductive layer on the dielectric layer and having optical transparency. At least one of the first and second electroconductive layers is electrically isolated for each group including one or more through-holes.
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公开(公告)号：US20210318466A1
公开(公告)日：2021-10-14
申请号：US17226662
申请日：2021-04-09
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Soh UENOYAMA , Hiroki KAMEI , Kazuyoshi HIROSE
Abstract: A method for producing an optical element includes: disposing a joint layer on a substrate; forming a first portion and a second portion in a second surface of the joint layer; and forming a plurality of structural bodies, which are made of a dielectric, on the second surface of the joint layer. The joint layer has a first surface facing the substrate, and the second surface located on a side opposite the first surface. The first portion is covered with a resist layer, and the second portion is exposed from the resist layer. After the dielectric is laminated on at least the second portion, the resist layer is removed to form the plurality of structural bodies on the second surface.
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公开(公告)号：US20200209653A1
公开(公告)日：2020-07-02
申请号：US16622497
申请日：2018-06-13
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Yuu TAKIGUCHI , Kazuyoshi HIROSE , Yoshitaka KUROSAKA , Takahiro SUGIYAMA , Yoshiro NOMOTO , Soh UENOYAMA
Abstract: The present embodiment relates to a light-emitting device that enables reduction in attenuation or diffraction effect caused by a semiconductor light-emitting device with respect to modulated light outputted from a spatial light modulator, and the light-emitting device includes the semiconductor light-emitting device that outputs light from a light output surface and the reflection type spatial light modulator that modulates the light. The spatial light modulator includes a light input/output surface having the area larger than the area of a light input surface of the semiconductor light-emitting device, modulates light taken through a region facing the light output surface of the semiconductor light-emitting device in the light input/output surface, and outputs the modulated light from another region of the light input/output surface to a space other than the light input surface of the semiconductor light-emitting device.
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公开(公告)号：US20240219230A1
公开(公告)日：2024-07-04
申请号：US18610669
申请日：2024-03-20
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Soh UENOYAMA , Takuya Hashimoto
CPC classification number: G01J1/44 , G01J1/0411 , G01J2001/4466
Abstract: The light detector includes a light detection substrate having at least one light receiving region and a light incident surface on which a detection target light is incident, and a meta-lens including a plurality of unit structures arranged in a grid pattern and disposed on the light incident surface to focus the detection target light. When viewed in a thickness direction of the light detection substrate, an opening region in which no unit structure is formed is provided in a region including a center of the meta-lens.
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