公开(公告)号：US20190204626A1

公开(公告)日：2019-07-04

申请号：US16327891

申请日：2017-07-28

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Koyo WATANABE ,  Koji TAKAHASHI ,  Takashi INOUE

IPC: G02F1/01 ,  G02F2/00

CPC classification number: G02F1/01 ,  G02F2/004 ,  G02F2201/305

Abstract: A Fourier transform is performed on a first waveform function in a frequency domain, and a second waveform function in a time domain including a temporal intensity waveform function and a temporal phase waveform function is generated. A replacement of the temporal intensity waveform function based on a desired waveform is performed for the second waveform function. The second waveform function is modified so as to bring a spectrogram of the second waveform function close to a target spectrogram generated in advance in accordance with a desired wavelength band. An inverse Fourier transform is performed on the modified second waveform function, and a third waveform function in the frequency domain is generated. Data is generated on the basis of an intensity spectrum function or a phase spectrum function of the third waveform function.

公开(公告)号：US20180294615A1

公开(公告)日：2018-10-11

申请号：US15573935

申请日：2016-05-11

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Koyo WATANABE ,  Takashi INOUE ,  Koji TAKAHASHI

IPC: H01S3/00 ,  G02F1/01 ,  G06F17/14 ,  G05B15/02

CPC classification number: H01S3/0085 ,  G02F1/01 ,  G02F1/0121 ,  G02F1/13 ,  G02F1/133 ,  G02F2203/12 ,  G05B15/02 ,  G06F17/14

Abstract: An iterative Fourier transform unit in a modulation pattern calculation apparatus performs a Fourier transform on a waveform function including an intensity spectrum function and a phase spectrum function, performs a replacement of a temporal intensity waveform function based on a desired waveform after the Fourier transform, and then performs an inverse Fourier transform. The iterative Fourier transform unit performs the replacement using a result of multiplying a function representing the desired waveform by a coefficient, and the coefficient has a value in which a difference between the function after the multiplication and the temporal intensity waveform function after the Fourier transform is smaller than a difference before the multiplication of the coefficient.

公开(公告)号：US20160124222A1

公开(公告)日：2016-05-05

申请号：US14895624

申请日：2014-05-29

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Hongxin HUANG ,  Takashi INOUE

IPC: G02B27/00 ,  G01J9/00

CPC classification number: G02B27/0068 ,  G01J9/00 ,  G02B26/06 ,  G02F2203/18

Abstract: An adaptive optics system includes a spatial light modulator configured to spatially modulate a phase of an optical image incident on a modulation surface including N two-dimensionally arranged regions and a wavefront sensor including a lens array having N two-dimensionally arranged lenses corresponding to the N regions and an optical detection element for detecting a light intensity distribution including K converging spots formed by the lens array and configured to receive the optical image after the modulation from the spatial light modulator, wherein a correspondence relation between the region of the spatial light modulator and the converging spot formed in the wavefront sensor is specified.

Abstract translation: 自适应光学系统包括：空间光调制器，被配置为空间调制入射在包括N个二维布置区域的调制表面上的光学图像的相位;以及波前传感器，其包括具有N个二维排列的透镜对应于N个 区域和用于检测包括由所述透镜阵列形成的K个会聚点的光强度分布的光学检测元件，并且被配置为在从所述空间光调制器调制之后接收所述光学图像，其中所述空间光调制器的区域与 规定了在波前传感器中形成的会聚点。

公开(公告)号：US20160062128A1

公开(公告)日：2016-03-03

申请号：US14782015

申请日：2014-03-25

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takashi INOUE ,  Hirotoshi TERADA

IPC: G02B27/10 ,  B23K26/064 ,  B23K26/067 ,  G02B27/28 ,  G02F1/135

CPC classification number: G02B27/1006 ,  B23K26/064 ,  B23K26/0648 ,  B23K26/067 ,  B23K26/0676 ,  G02B27/0905 ,  G02B27/283 ,  G02B27/286 ,  G02F1/135

Abstract: An optical module (1A) includes a polarization beam splitter (10A), polarization elements (20 and 40) having nonreciprocal optical activity and respectively arranged on an optical path of a first polarization component (L2) transmitted through a light splitting surface (11) in irradiation light (L1) and an optical path of a second polarization component (L4) reflected in the light splitting surface (11), a first reflective SLM (30) that modulates and reflects a first polarization component (L2) passing through the first polarization element (20), and a second reflective SLM (50) that modulates and reflects the second polarization component (L4) passing through the second polarization element (40). First modulation light (L3) passing through the polarization element (20) again and then reflected by the light splitting surface (11) and second modulation light (L5) passing through the polarization element (40) again and then transmitted through the light splitting surface (11) are combined with each other.

Abstract translation: 光学模块（1A）包括偏振分束器（10A），具有不可逆光学活动的偏振元件（20和40），并且分别布置在通过光分离表面（11）透射的第一偏振分量（L2）的光路上， 在照射光（L1）和在分光面（11）中反射的第二偏振分量（L4）的光路的第一反射SLM（30），其对通过第一偏振分量（L1）的第一偏振分量 偏振元件（20）和第二反射SLM（50），其对通过第二偏振元件（40）的第二偏振分量（L4）进行调制和反射。 第一调制光（L3）再次通过偏振元件（20）然后被分光表面（11）反射，并且第二调制光（L5）再次通过偏振元件（40），然后透射通过光分离表面 （11）彼此组合。

公开(公告)号：US20240361620A1

公开(公告)日：2024-10-31

申请号：US18644329

申请日：2024-04-24

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Koyo WATANABE ,  Takashi INOUE

IPC: G02F1/01

CPC classification number: G02F1/0121

Abstract: A data generation method of the present disclosure is a method for generating data for controlling a spatial light modulator. The data generation method includes: preparing a plurality of initial phase spectrum functions; generating each of a plurality of pieces of preliminary data for controlling the spatial light modulator by using each of the plurality of initial phase spectrum functions; and selecting at least one of the plurality of pieces of preliminary data and setting the at least one piece of preliminary data as the data for controlling the spatial light modulator.

公开(公告)号：US20240201046A1

公开(公告)日：2024-06-20

申请号：US18286272

申请日：2022-03-14

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Koyo WATANABE ,  Hisanari TAKAHASHI ,  Takashi INOUE

IPC: G01M11/00

CPC classification number: G01M11/338

Abstract: A dispersion measuring device includes a pulsed laser light source, a pulse forming unit, a correlator, and an arithmetic operation unit. The pulse forming unit forms an optical pulse train from an optical pulse output from the pulsed laser light source. The correlator detects a temporal waveform of correlated light formed from the optical pulse train. The arithmetic operation unit estimates a wavelength dispersion amount of an optical component disposed between the pulsed laser light source and the correlator, based on the temporal waveform of the correlated light. A dispersion medium gives a group delay dispersion to the optical pulse train to increase the peak intensity of the correlated light to be equal to or greater than a threshold value of the correlator. The pulse forming unit gives a group delay dispersion having a sign opposite to the group delay dispersion given to the optical pulse train to the optical pulse.

公开(公告)号：US20240142375A1

公开(公告)日：2024-05-02

申请号：US18279080

申请日：2021-12-15

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kyohei SHIGEMATSU ,  Koji TAKAHASHI ,  Takashi INOUE

IPC: G01N21/64 ,  G01N21/17 ,  G01N21/25

CPC classification number: G01N21/6408 ,  G01N21/255 ,  G01N21/6458 ,  G01N2021/1757 ,  G01N2021/1789 ,  G01N2021/6423 ,  G01N21/648 ,  G01N2201/0696

Abstract: A sample observation device includes a light source unit configured to output a pulse train in which multiple optical pulses with different center wavelengths are arranged at predetermined time intervals as excitation light; a measurement unit configured to perform time-resolved measurement on an optical response that is transmitted from the sample and corresponds to irradiation with the optical pulses included in the pulse train while scanning the sample with the excitation light, and to acquire measurement data with respect to the optical pulses; and a processing unit configured to perform linear unmixing processing on the measurement data with respect to the optical pulses on the basis of an excitation spectrum for every target included in the sample.

公开(公告)号：US20200301174A1

公开(公告)日：2020-09-24

申请号：US16089400

申请日：2017-03-15

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Koyo WATANABE ,  Koji TAKAHASHI ,  Takashi INOUE ,  Haruyasu ITO

IPC: G02F1/01 ,  H04N5/232 ,  G02B5/30

Abstract: An imaging system includes a light source for outputting initial pulsed light, a polarization control unit for rotating a polarization plane of the initial pulsed light, an optical pulse shaping unit for inputting the initial pulsed light with the rotated polarization plane, and outputting first pulsed light Lp1 having a first polarization direction and second pulsed light Lp2 having a second polarization direction different from the first polarization direction with a time, an irradiation optical system for irradiating an imaging object with the pulsed light Lp1 and the pulsed light Lp2, a light separation element for separating the pulsed light Lp1 and the pulsed light Lp2 reflected by or transmitted through the imaging object on the basis of the polarization directions, an imaging unit for imaging the pulsed light Lp1, and an imaging unit for imaging the pulsed light Lp2.

公开(公告)号：US20170030776A1

公开(公告)日：2017-02-02

申请号：US15303900

申请日：2015-04-08

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takashi INOUE ,  Koyo WATANABE ,  Koji TAKAHASHI ,  Naoya MATSUMOTO

IPC: G01J11/00 ,  G02B5/32

CPC classification number: G01J11/00 ,  G01J9/00 ,  G02B5/32 ,  G02F2203/56

Abstract: A waveform measurement device includes an input spectrum acquisition unit for acquiring an input intensity spectrum being an intensity spectrum of pulsed light, an optical element inputting the pulsed light and outputting light having an intensity spectrum corresponding to a phase spectrum of the pulsed light, an output spectrum acquisition unit for acquiring an output intensity spectrum being an intensity spectrum of the light output from the optical element, and a phase spectrum determination unit for determining the phase spectrum of the pulsed light by comparing an output intensity spectrum calculated when the pulsed light having an input intensity spectrum and a virtual phase spectrum is assumed to be input to the optical element with the output intensity spectrum acquired in the output spectrum acquisition unit. The phase spectrum determination unit sets the virtual phase spectrum by deforming the control phase spectrum.

Abstract translation: 波形测量装置包括：输入频谱获取单元，用于获取作为脉冲光的强度谱的输入强度谱;输入脉冲光的光学元件，并输出具有与脉冲光的相位谱对应的强度光谱的光;输出 光谱获取单元，用于获取作为从光学元件输出的光的强度谱的输出强度谱;以及相位谱确定单元，用于通过比较当脉冲光具有 假设输入强度谱和虚拟相位谱被输入到具有在输出频谱获取单元中获取的输出强度谱的光学元件。 相位谱确定单元通过使控制相位频谱变形来设定虚拟相位频谱。

公开(公告)号：US20160202477A1

公开(公告)日：2016-07-14

申请号：US15073924

申请日：2016-03-18

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Haruyasu ITO ,  Naoya MATSUMOTO ,  Takashi INOUE

IPC: G02B27/00 ,  G02B5/18 ,  G02B21/02 ,  G02B21/00 ,  G02B21/36

CPC classification number: G02B27/0025 ,  B23K26/00 ,  B23K26/03 ,  B23K26/032 ,  B23K26/06 ,  B23K26/064 ,  B23K26/36 ,  B23K26/364 ,  B23K26/38 ,  B23K26/40 ,  B23K26/53 ,  B23K26/57 ,  B23K2101/40 ,  B23K2103/50 ,  G02B5/1876 ,  G02B5/32 ,  G02B21/0032 ,  G02B21/02 ,  G02B21/06 ,  G02B21/361 ,  G02B27/0068 ,  G02F1/01 ,  G02F2203/18

Abstract: In an aberration-correcting method according to an embodiment of the present invention, in an aberration-correcting method for a laser irradiation device 1 which focuses a laser beam on the inside of a transparent medium 60, aberration of a laser beam is corrected so that a focal point of the laser beam is positioned within a range of aberration occurring inside the medium. This aberration range is not less than n×d and not more than n×d+Δs from an incidence plane of the medium 60, provided that the refractive index of the medium 60 is defined as n, a depth from an incidence plane of the medium 60 to the focus of the lens 50 is defined as d, and aberration caused by the medium 60 is defined as Δs.

Abstract translation: 在根据本发明实施例的像差校正方法中，在将激光束聚焦在透明介质60的内部的激光照射装置1的像差校正方法中，校正激光束的像差，使得 激光束的焦点位于介质内发生的像差范围内。 该像差范围不小于介质60的入射面的n×d且不大于n×d +＆Dgr·s，条件是介质60的折射率定义为n，入射面的深度 将介质60到透镜50的焦点定义为d，并且由介质60引起的像差被定义为＆Dgr; s。