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公开(公告)号：US20170259374A1
公开(公告)日：2017-09-14
申请号：US15509265
申请日：2015-08-26
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Yuu TAKIGUCHI
IPC: B23K26/064 , G02F1/01 , B23K26/073
CPC classification number: B23K26/064 , B23K26/073 , G02F1/01 , G02F1/0105 , G02F1/13 , G02F2203/12
Abstract: A light irradiation apparatus includes a light source, a dispersive element, a spatial light modulator, and a focusing element. The dispersive element disperses pulsed light output from the light source and outputs the light. The dispersive element includes, for example. The spatial light modulator modulates a phase spectrum or an intensity spectrum of the light output from the dispersive element and outputs the light. The focusing element receives the light output from the spatial light modulator in a dispersing state, and focuses the light on a common region (focusing region) in a surface or an inside of an object.
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公开(公告)号：US20160274384A1
公开(公告)日：2016-09-22
申请号：US14442272
申请日：2013-10-22
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Yuu TAKIGUCHI
CPC classification number: G02F1/0136 , G02B5/189 , G02B13/22 , G02B26/02 , G02F1/1347 , G02F1/13731
Abstract: A light modulation apparatus 1A includes a first spatial light modulator, a pinhole member, and a second spatial light modulator. The first spatial light modulator has a phase modulation plane on which a kinoform for performing intensity modulation is displayed, and generates modulated light P2. The pinhole member has a light passing hole for letting a first-order light component of the modulated light P2 pass therethrough, and blocks a zeroth-order light component of the modulated light P2. The second spatial light modulator has a polarization modulation plane that controls the polarization state of the modulated light P2 incident on the polarization modulation plane through the light passing hole of the pinhole member, and generates modulated light P3.
Abstract translation: 光调制装置1A包括第一空间光调制器，针孔构件和第二空间光调制器。 第一空间光调制器具有相位调制平面，在该相位调制平面上显示用于进行强度调制的kinoform，并产生调制光P2。 针孔构件具有用于使调制光P2的一阶光分量通过的光通过孔，并且阻挡调制光P2的零级光分量。 第二空间光调制器具有偏振调制面，其通过针孔构件的光通过孔来控制入射到偏振调制面的调制光P2的偏振状态，并生成调制光P3。
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公开(公告)号：US20160064894A1
公开(公告)日：2016-03-03
申请号：US14786217
申请日：2014-04-25
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Yuu TAKIGUCHI , Yoshiro NOMOTO
IPC: H01S5/026 , G02F1/1343 , H01S5/187
CPC classification number: H01S5/0265 , G02F1/133603 , G02F1/133615 , G02F1/13439 , H01S5/105 , H01S5/18 , H01S5/183 , H01S5/18302 , H01S5/18386 , H01S5/187
Abstract: 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 transparent common electrode 25, a plurality of transparent pixel electrodes 21, 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 by the spatial light modulator SLM, passes therethrough, and is output to the outside.
Abstract translation: 该半导体激光器件包括半导体激光器芯片和与半导体激光器芯片光学连接的空间光调制器SLM。 半导体激光器芯片LDC包括有源层4，夹持有源层4的一对覆盖层2和7以及与有源层4光学连接的衍射光栅层6.空间光调制器SLM包括透明公共端 电极25，多个透明像素电极21，布置在公共电极25和像素电极21之间的液晶层LC。沿着衍射光栅层6的厚度方向输出的激光束被空间光调制器SLM 通过，输出到外部。
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公开(公告)号：US20150309472A1
公开(公告)日：2015-10-29
申请号：US14441270
申请日：2013-11-07
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Yuu TAKIGUCHI , Takashi INOUE
CPC classification number: G03H1/0841 , G02B21/06 , G02B26/06 , G02B27/0927 , G02B27/0944 , G03H1/0005 , G03H1/0808 , G03H1/2294 , G03H2001/005 , G03H2001/0094 , G03H2001/085 , G03H2001/221 , G03H2210/20 , G03H2225/32 , G03H2225/52
Abstract: A phase distribution is calculated such that modulated light has a predetermined intensity distribution on a target plane and displayed on a phase modulation plane, readout light enters the phase modulation plane so as to generate the modulated light. When calculating the phase distribution, a region on the phase modulation plane is divided into N regions A1 . . . AN, with sizes set such that integration values of an intensity distribution in the regions are equal to each other. Further, a region on the target plane is divided into N regions B1 . . . BN, with sizes set such that integration values of an intensity distribution in the regions are equal to each other. The phase distribution is calculated by obtaining an optical path length from the region An to the region Bn, and determining the phase of the region An based on the optical path length.
Abstract translation: 计算相位分布，使得调制光在目标平面上具有预定的强度分布并显示在相位调制平面上，读出光进入相位调制平面以产生调制光。 当计算相位分布时，相位调制平面上的区域被分成N个区域A1。 。 。 AN，其尺寸设置为使得区域中的强度分布的积分值彼此相等。 此外，目标平面上的区域被划分成N个区域B1。 。 。 BN，其尺寸设定为使得区域中的强度分布的积分值彼此相等。 通过从区域An到区域Bn获得光路长度，并且基于光程长度确定区域An的相位来计算相位分布。
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25.发明申请公开(公告)号：US20130286453A1
公开(公告)日：2013-10-31
申请号：US13918225
申请日：2013-06-14
Applicant: Hamamatsu Photonics K.K.
Inventor： Yuu TAKIGUCHI , Naoya MATSUMOTO , Norihiro FUKUCHI , Takashi INOUE , Tamiki TAKEMORI , Naohisa MUKOZAKA
IPC: H01S3/00
CPC classification number: H01S3/0085 , B23K26/06 , B23K26/352 , G02B3/08 , G02B5/32 , G02B13/22 , G03H1/0005 , G03H1/08 , G03H1/0808 , G03H1/2294 , G03H2001/0094 , G03H2225/32
Abstract: 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.
Abstract translation: 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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Patent Agency Ranking
公开(公告)号：US20130068742A1
公开(公告)日：2013-03-21
申请号：US13678006
申请日：2012-11-15
Applicant: Hamamatsu Photonics K.K.
Inventor： Naoya MATSUMOTO , Takashi INOUE , Norihiro FUKUCHI , Haruyasu ITO , Yuu TAKIGUCHI
IPC: B23K26/00
CPC classification number: B23K26/00 , B23K26/06 , B23K26/0624 , B23K26/064 , B23K26/0661 , B23K26/067 , B23K26/355 , G03H1/2294 , G03H2001/0094 , G03H2225/32
Abstract: A laser machining device 1 comprises a laser light source 10, a spatial light modulator 20, a controller 22, a converging optical system 30, and a shielding member 40. The phase-modulating spatial light modulator 20 inputs a laser beam outputted from the laser light source 10, displays a hologram modulating a phase of the laser beam at each of a plurality of pixels arranged two-dimensionally, and outputs the phase-modulated laser beam. The controller 22 causes the spatial light modulator 20 to display a plurality of holograms sequentially, lets the converging optical system 30 converge the laser beam outputted from the spatial light modulator 20 at converging positions having a fixed number of M, selectively places N converging positions out of the M converging positions into a machining region 91, and machines an object to be machined 90.
Abstract translation: 激光加工装置1包括激光源10，空间光调制器20，控制器22，会聚光学系统30和屏蔽构件40.相位调制空间光调制器20输入从激光器输出的激光束 光源10显示调制在二维排列的多个像素中的每一个处的激光束的相位的全息图，并输出相位调制的激光束。 控制器22使空间光调制器20依次显示多个全息图，使会聚光学系统30将从空间光调制器20输出的激光束会聚在具有固定数量的M的会聚位置，选择性地将N个收敛位置放出 的M个会聚位置进入加工区域91，并且对要加工的物体进行加工90。
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公开(公告)号：US20240242308A1
公开(公告)日：2024-07-18
申请号：US18408690
申请日：2024-01-10
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Yoshiki KATAGIRI , Munenori TAKUMI , Keisuke UCHIDA , Yuu TAKIGUCHI , Ken-ichi KITAYAMA , Katsuhiro ISHII , Tomonori OISHI
IPC: G06T3/4053 , G06T11/00 , G06V10/25
CPC classification number: G06T3/4053 , G06T11/003 , G06V10/25
Abstract: An image acquisition device includes a mask member that includes a mask pixel that changes a transmittance of some parallel waves from a subject on a plane intersecting with an incident direction of the parallel wave, a detector that includes a plurality of pixels that is arranged in a direction intersecting with the incident direction of the parallel wave and detects the parallel wave that has passed through the mask member, and an image processing device that reconstructs an image using compressed sensing based on data regarding a relative moving amount between the mask member and the subject and detection signals of the plurality of pixels input from the detector, in which a size of the mask pixel of the mask member on the plane is smaller than a size of the plurality of pixels along the plane.
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公开(公告)号：US20230101292A1
公开(公告)日：2023-03-30
申请号：US18076721
申请日：2022-12-07
Applicant: Hamamatsu Photonics K.K.
Inventor： Hiroto SAKAI , Taro ANDO , Haruyoshi TOYODA , Yoshiyuki OHTAKE , Yuu TAKIGUCHI , Tomoko HYODO
Abstract: A pseudo speckle pattern generation apparatus includes a light source, a beam expander, and a spatial light modulator. The spatial light modulator has an intensity modulation distribution based on a pseudo speckle pattern calculated from a pseudo random number pattern and a correlation function, receives light output from the light source and increased in beam diameter by the beam expander, spatially modulates the received light according to the modulation distribution, and outputs modulated light.
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29.发明申请公开(公告)号：US20210239752A1
公开(公告)日：2021-08-05
申请号：US17052969
申请日：2019-04-11
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Soh UENOYAMA , Yuu TAKIGUCHI , Hirotoshi TERADA
IPC: G01R31/311 , G02B1/02 , G02B7/02 , G02B21/02
Abstract: The present disclosure relates to a metalens unit including a metalens having a structure for reducing a thickness. The metalens unit includes a metalens and a holding portion for the metalens. The metalens includes a base portion and a first antenna portion. The first antenna portion is constituted by a plurality of first antennas each having a first refractive index and a first intermediate portion having a second refractive index and positioned between the plurality of first antennas. A first antenna portion is formed such that one-dimensional arrangement constituted by some of end surfaces of the plurality of first antennas includes a pattern in which at least one of a size of the end surface, a shape of the end surface, and an arrangement pitch is changed along a reference line.
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公开(公告)号：US20210226412A1
公开(公告)日：2021-07-22
申请号：US17269313
申请日：2019-08-27
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Kazuyoshi HIROSE , Yuu TAKIGUCHI , Takahiro SUGIYAMA , Yoshitaka KUROSAKA
Abstract: The present embodiment relates to a light emission device capable of removing zero-order light from output light of an S-iPM laser. The light emission device comprises an active layer and a phase modulation layer. The phase modulation layer includes a base layer and a plurality of modified refractive index regions. In a state in which a virtual square lattice is set on the phase modulation layer, a center of gravity of each modified refractive index region is separated from a corresponding lattice point, and a rotation angle around each lattice point that decides a position of the center of gravity of each modified refractive index region is set according to a phase distribution for forming an optical image. A lattice spacing and an emission wavelength satisfy a condition of M-point oscillation in a reciprocal lattice space of the phase modulation layer. A magnitude of at least one of in-plane wavenumber vectors in four directions formed in the reciprocal lattice space and each including a wavenumber spread corresponding to an angle spread of the output light is smaller than 2π/λ.
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