-
公开(公告)号：US11822054B2
公开(公告)日：2023-11-21
申请号：US17052249
申请日：2019-04-11
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Soh Uenoyama , Yuu Takiguchi
CPC classification number: G02B1/02 , C03C15/00 , C03C17/09 , G02B1/00 , G02B1/002 , H01Q1/22 , H01Q1/2283
Abstract: The present disclosure relates to a metasurface structural body or the like having a structure for achieving desired optical characteristics. The metasurface structural body includes a base member having a first surface and a second surface opposing each other, and a plurality of antennas as a plurality of fine structures arranged along the first surface. The base member has a base portion and an adjacent portion. The antennas each has a first refractive index and an antenna end surface constituting a part of the first surface. The adjacent portion is provided such that a part thereof is positioned between the antennas, the adjacent portion having a second refractive index different from the first refractive index and an adjacent-portion end surface constituting a remaining part of the first surface. The antenna end surfaces and the adjacent-portion end surface form a flat surface as the first surface.
-
公开(公告)号：US11977204B2
公开(公告)日：2024-05-07
申请号：US17226662
申请日：2021-04-09
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Soh Uenoyama , Hiroki Kamei , Kazuyoshi Hirose
IPC: G02F1/1335 , G02B1/00 , G02B3/08 , G02F1/1333
CPC classification number: G02B1/002 , G02B3/08 , G02F1/133345 , G02F1/133507 , G02F1/133516
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.
-
公开(公告)号：US11502481B2
公开(公告)日：2022-11-15
申请号：US16432198
申请日：2019-06-05
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takahiro Sugiyama , Yuu Takiguchi , Yoshitaka Kurosaka , Kazuyoshi Hirose , Yoshiro Nomoto , Soh Uenoyama
Abstract: A semiconductor light-emitting module according to the present embodiment includes a plurality of semiconductor light-emitting elements each outputting light of a desired beam projection pattern; and a support substrate holding the plurality of semiconductor light-emitting elements. Each of the plurality of semiconductor light-emitting elements includes a phase modulation layer configured to form a target beam projection pattern in a target beam projection region. The plurality of semiconductor light-emitting elements include first and second semiconductor light-emitting elements that are different in terms of at least any of a beam projection direction, the target beam projection pattern, and a light emission wavelength.
-
公开(公告)号：US12051883B2
公开(公告)日：2024-07-30
申请号：US17787976
申请日：2020-12-23
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Kazuyoshi Hirose , Yoshitaka Kurosaka , Soh Uenoyama
CPC classification number: H01S5/0085 , G02F1/0151 , G02F1/025 , H01S5/026 , H01S5/0265 , H01S5/11 , H01S5/185 , G02F2201/12 , H01S5/18
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.
-
公开(公告)号：US11870218B2
公开(公告)日：2024-01-09
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
CPC classification number: H01S5/185 , H01S5/005 , H01S5/04252 , H01S5/04254 , H01S5/18302 , H01S5/34333 , H01S5/34326
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.
-
Patent Agency Ranking
公开(公告)号：US11777276B2
公开(公告)日：2023-10-03
申请号：US17749893
申请日：2022-05-20
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takahiro Sugiyama , Yuu Takiguchi , Yoshitaka Kurosaka , Kazuyoshi Hirose , Yoshiro Nomoto , Soh Uenoyama
CPC classification number: H01S5/11 , H01S5/04256 , H01S5/42 , H01S5/026 , H01S5/0425 , H01S5/04254 , H01S5/1835 , H01S5/34313 , H01S5/34353 , H01S5/423 , H01S2301/16 , H01S2301/18 , H01S2301/20
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.
-
公开(公告)号：US12153172B2
公开(公告)日：2024-11-26
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.
-
公开(公告)号：US12099296B2
公开(公告)日：2024-09-24
申请号：US17226721
申请日：2021-04-09
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Soh Uenoyama , Hiroki Kamei , Kazuyoshi Hirose
CPC classification number: G03F7/0005 , G02B27/0012
Abstract: A method for producing an optical element includes: forming a resist layer on a main surface of a substrate; forming a pattern region in the resist layer; forming a groove; forming a dielectric layer covering the pattern region; and forming an optical functional portion. The pattern region is formed in the resist layer. The groove is formed in a portion corresponding to a periphery of the pattern region as viewed in a direction orthogonal to the main surface. A dielectric is deposited to form the dielectric layer. After the dielectric layer covering the pattern region is formed, the resist layer is removed to form the optical functional portion at a position where the pattern region is disposed on the main surface. The optical functional portion is made of the dielectric.
-
公开(公告)号：US12046874B2
公开(公告)日：2024-07-23
申请号：US17054000
申请日：2019-05-14
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Soh Uenoyama , Kazuyoshi Hirose , Yoshitaka Kurosaka , Hiroshi Tanaka
IPC: H01S5/00 , H01S5/026 , H01S5/11 , H01S5/183 , H01S5/185 , H01S5/20 , H01S5/42 , G02F1/015 , G02F1/29 , H01S5/12
CPC classification number: H01S5/2027 , H01S5/026 , H01S5/11 , H01S5/18361 , H01S5/18375 , H01S5/18377 , H01S5/185 , H01S5/42 , G02F1/0151 , G02F1/292 , G02F2202/30 , H01S5/12 , H01S5/183
Abstract: The present embodiment relates to a light-emitting device comprising a reflective metasurface modulating a phase for each of pixels constituting a one- or two-dimensional array. The light-emitting device comprises a surface emitting laser element, a light guide layer, and the metasurface. The metasurface has a light transmissive layer including a dielectric layer, one metal film on one surface thereof, and the other metal film on the other surface thereof. In each of unit regions corresponding to the pixels, the light transmissive layer includes a portion exposed without being covered with the metal film. The width of each unit region and the thickness of the light transmissive layer are smaller than the wavelength of the laser light to the metasurface. The metasurface modulates the phase of the laser light for each unit region. A first light output surface outputs the modulated laser.
-
公开(公告)号：US11971643B2
公开(公告)日：2024-04-30
申请号：US17053130
申请日：2019-05-14
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Soh Uenoyama , Kazuyoshi Hirose , Yoshitaka Kurosaka , Hiroshi Tanaka
CPC classification number: G02F1/292 , G02B1/002 , G02F1/01 , G02F1/0121 , G02F1/19 , G02F1/2955 , G02F1/355 , G02F2201/12 , G02F2202/30 , G02F2203/12 , G02F2203/24
Abstract: A reflective dynamic metasurface of an embodiment comprises a structure enabling phase modulation in each of pixels constituting at least a one-dimensional array. The metasurface includes: a laminated structure body having a transparent conductive layer and a dielectric layer; a first metal film on one surface of the laminated structure body; a second metal film on the other surface of the laminated structure body; and a drive circuit controlling voltage applied between the first and second metal films. The first and second metal films are arranged to sandwich the pixels. The first metal film is arranged to expose a pair of window regions in one pixel, and the second metal film includes partial metal films defining the shape of each pixel and separated from each other. The drive circuit individually controls the potential of each partial metal film, thereby modulating the phase of the input light for each pixel.
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.013 seconds)
