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公开(公告)号：US11822054B2
公开(公告)日：2023-11-21
申请号：US17052249
申请日：2019-04-11
发明人： Soh Uenoyama , Yuu Takiguchi
摘要： 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.
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公开(公告)号：US11031747B2
公开(公告)日：2021-06-08
申请号：US16323625
申请日：2017-08-10
摘要： The present embodiment relates to a light emitting device having a structure capable of removing zero order light from output light of an S-iPM laser. The light emitting device includes a semiconductor light emitting element and a light shielding member. The semiconductor light emitting element includes an active layer, a pair of cladding layers, and a phase modulation layer. The phase modulation layer has a basic layer and a plurality of modified refractive index regions, each of which is individually disposed at a specific position. The light shielding member has a function of passing through a specific optical image output along an inclined direction and shielding zero order light output along a normal direction of a light emitting surface.
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公开(公告)号：US20190356113A1
公开(公告)日：2019-11-21
申请号：US16451580
申请日：2019-06-25
摘要： In a semiconductor light emitting element provided with an active layer 4, a pair of cladding layers 2, 7 between which the active layer 4 is interposed, and a phase modulation layer 6 optically coupled to the active layer 4, the phase modulation layer 6 includes a base layer 6A and a plurality of different refractive index regions 6B having different refractive indices from the base layer 6A. When an XYZ orthogonal coordinate system having a thickness direction of the phase modulation layer 6 as a Z-axis direction is set and a square lattice of a virtual lattice constant a is set in an XY plane, each of the different refractive index regions 6B is disposed so that a centroid position G thereof is shifted from a lattice point position in a virtual square lattice by a distance r, and the distance r is 0
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公开(公告)号：US10466458B2
公开(公告)日：2019-11-05
申请号：US15772648
申请日：2016-09-20
发明人： Yuu Takiguchi
摘要： An image acquisition device includes a light source, a spatial light modulator having a plurality of pixels two-dimensionally arranged and fro modulating a phase of excitation light output from the light source for each of the plurality of pixels, a first objective lens, a second objective lens, a photodetector, and a control unit for controlling an amount of phase modulation for each of the plurality of pixels in accordance with a two-dimensional phase pattern corresponding to the plurality of pixels. The phase pattern is generated based on a predetermined basic phase pattern. The basic phase pattern includes a first region in which the phase value continuously increases in a predetermined direction and a second region in which the phase value continuously decreases in the direction and facing the first region in the direction.
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公开(公告)号：US10090636B2
公开(公告)日：2018-10-02
申请号：US15541515
申请日：2016-01-07
IPC分类号： H01S5/02 , G02F1/1335 , G02B27/10 , H01S5/18
摘要： Provided is a semiconductor laser device including a plurality of semiconductor laser units LDC that are capable of being independently driven, and a spatial light modulator SLM that is optically coupled to a group of the plurality of semiconductor laser units LDC. Each of the semiconductor laser units includes a pair of clad layers having an active layer 4 interposed therebetween, and a diffractive lattice layer 6 that is optically coupled to the active layer 4. The semiconductor laser device includes a ¼ wavelength plate 26 that is disposed between a group of the active layers 4 of the plurality of semiconductor laser units LDC and a reflection film 23, and a polarizing plate 27 that is disposed between the group of the active layers 4 of the plurality of semiconductor laser units LDC and a light emitting surface.
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公开(公告)号：US09948060B2
公开(公告)日：2018-04-17
申请号：US15538219
申请日：2015-12-24
CPC分类号： H01S5/0425 , G02F1/13 , H01S3/1065 , H01S5/0228 , H01S5/026 , H01S5/0624 , H01S5/06243 , H01S5/105 , H01S5/12 , H01S5/14 , H01S5/18 , H01S5/18302 , H01S5/18361 , H01S5/34313 , H01S5/34353 , H01S2301/02 , H01S2301/20
摘要： This semiconductor laser device includes a semiconductor laser chip and a spatial light modulator SLM optically coupled to the semiconductor laser chip. The semiconductor laser chip LDC includes an active layer 4, a pair of cladding layers 2 and 7 sandwiching the active layer 4, a diffraction grating layer 6 optically coupled to the active layer 4, and a drive electrode E3 that is disposed between the cladding layer 2 and the spatial light modulator SLM and supplies an electric current to the active layer 4, and the drive electrode E3 is positioned within an XY plane and has a plurality of openings as viewed from a Z-axis direction and has a non-periodic structure.
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公开(公告)号：US09793681B2
公开(公告)日：2017-10-17
申请号：US14903466
申请日：2014-07-02
发明人： Yuu Takiguchi , Yoshiro Nomoto
CPC分类号： H01S5/026 , G02F1/1335 , G02F1/137 , G02F1/29 , G02F2001/291 , G02F2201/305 , G02F2202/32 , G02F2203/02 , G02F2203/12 , G02F2203/18 , G02F2203/50 , H01S5/0085 , H01S5/12 , H01S5/187 , H01S5/34313 , H01S5/3432 , H01S5/34353
摘要： This semiconductor laser device includes a semiconductor laser chip and a spatial light modulator SLM which is optically connected to the semiconductor laser chip. The semiconductor laser chip LDC includes an active layer 4, a pair of cladding layers 2 and 7 sandwiching the active layer 4, and a diffraction grating layer 6 which is optically connected to the active layer 4. The spatial light modulator SLM includes a common electrode 25, a plurality of pixel electrodes 21, and a liquid crystal layer LC arranged between the common electrode 25 and the pixel electrodes 21. A laser beam output in a thickness direction of the diffraction grating layer 6 is modulated and reflected by the spatial light modulator SLM and is output to the outside.
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8.发明授权公开(公告)号：US08941903B2
公开(公告)日：2015-01-27
申请号：US13918225
申请日：2013-06-14
发明人： Yuu Takiguchi , Naoya Matsumoto , Norihiro Fukuchi , Takashi Inoue , Tamiki Takemori , Naohisa Mukozaka
IPC分类号： G03H1/08 , H01S3/00 , B23K26/00 , B23K26/06 , G02B5/32 , G03H1/00 , G02B3/08 , G02B13/22 , G03H1/22
CPC分类号： H01S3/0085 , B23K26/06 , B23K26/352 , G02B3/08 , G02B5/32 , G02B13/22 , G03H1/0005 , G03H1/08 , G03H1/0808 , G03H1/2294 , G03H2001/0094 , G03H2225/32
摘要： A laser processing apparatus including a laser light source, a phase modulation type spatial light modulator, a driving unit, a control unit, and an imaging optical system. A storage unit that is included in the driving unit stores a plurality of basic holograms corresponding to a plurality of basic processing patterns and a focusing hologram corresponding to a Fresnel lens pattern. The control unit arranges in parallel two or more basic holograms selected from the plurality of basic holograms stored in the storage unit, overlaps the focusing hologram with each of the basic holograms arranged in parallel to form the whole hologram, and presents the formed whole hologram to the spatial light modulator.
摘要翻译： 一种激光加工装置，包括激光光源，相位调制型空间光调制器，驱动单元，控制单元和成像光学系统。 包括在驱动单元中的存储单元存储对应于多个基本处理模式的多个基本全息图和对应于菲涅尔透镜图案的聚焦全息图。 控制单元平行布置从存储在存储单元中的多个基本全息图中选择的两个或多个基本全息图，与聚焦全息图重叠，每个基本全息图平行布置以形成整个全息图，并将形成的全息图呈现为 空间光调制器。
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公开(公告)号：US12124215B2
公开(公告)日：2024-10-22
申请号：US17347633
申请日：2021-06-15
CPC分类号： G03H1/041 , G03H1/0005 , G03H1/268 , G03H2001/0088 , H04N5/7416 , H04N9/31 , H04N13/393
摘要： An image output device of the disclosure facilitates enlargement of a stereoscopic image and includes a spatial light modulator, an image irradiation unit, and an address light irradiation unit. The spatial light modulator includes a main surface, a back surface, and pixels, reflects light emitted to the main surface, and modulates a phase of the light for each pixel. The image irradiation unit irradiates the main surface with light including an optical image. The address light irradiation unit irradiates the back surface with address light including a diffraction grating pattern. Each pixel of the spatial light modulator changes a phase modulation amount according to the intensity of the address light from a back surface. The address light irradiation unit dynamically change a diffraction grating pattern's direction on the back surface. The image irradiation unit irradiates the main surface with the optical image corresponding to the diffraction grating pattern's direction.
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公开(公告)号：US11502481B2
公开(公告)日：2022-11-15
申请号：US16432198
申请日：2019-06-05
发明人： Takahiro Sugiyama , Yuu Takiguchi , Yoshitaka Kurosaka , Kazuyoshi Hirose , Yoshiro Nomoto , Soh Uenoyama
摘要： 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.
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