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    Constituent concentration measuring apparatus and constituent concentration measuring apparatus controlling method
    3.
    发明授权
    Constituent concentration measuring apparatus and constituent concentration measuring apparatus controlling method 有权
    成分浓度测定装置及成分浓度测定装置的控制方法

    公开(公告)号：US08332006B2

    公开(公告)日：2012-12-11

    申请号：US11568110

    申请日：2005-05-02

    Applicant: Kazunori Naganuma ,  Takuro Tajima ,  Yuichi Okabe ,  Shoichi Sudo

    Inventor： Kazunori Naganuma ,  Takuro Tajima ,  Yuichi Okabe ,  Shoichi Sudo

    IPC: A61B5/1455

    CPC classification number: A61B5/0095 ,  A61B5/14532 ,  A61B5/1455 ,  A61B5/1495 ,  A61B5/6826 ,  A61B5/6838 ,  G01N21/1702 ,  G01N29/2418 ,  G01N29/2425 ,  G01N29/449

    Abstract: An object of the present invention is to provide a noninvasive constituent concentration measuring apparatus and constituent concentration measuring apparatus controlling method, in which accurate measurement can be performed by superimposing two photoacoustic signals having the same frequency and reverse phases to nullify the effect from the other constituent occupying large part of the object to be measured. The constituent concentration measuring apparatus according to the invention includes light generating means for generating two light beams having different wavelengths, modulation means for electrically intensity-modulating each of the two light beams having different wavelengths using signals having the same frequency and reverse phases, light outgoing means for outputting the two intensity-modulated light beams having different wavelengths toward a test subject, and acoustic wave detection means for detecting an acoustic wave generated in the test subject by the outputted light.

    Abstract translation: 本发明的目的是提供一种非侵入性成分浓度测量装置和组分浓度测量装置控制方法，其中可以通过叠加具有相同频率和相位的两个光声信号来进行精确的测量，以消除其他成分的影响 占据待测物体的大部分。 根据本发明的组成浓度测量装置包括用于产生具有不同波长的两个光束的光产生装置，用于使用具有相同频率和相位相位的信号对具有不同波长的两个光束中的每一个进行电强度调制的调制装置， 用于向测试对象输出具有不同波长的两个强度调制光束的装置，以及用于检测由所输出的光在测试对象中产生的声波的声波检测装置。

    WAVELENGTH SWEPT LIGHT SOURCE
    5.
    发明申请
    WAVELENGTH SWEPT LIGHT SOURCE 有权
    波长光源

    公开(公告)号：US20130286454A1

    公开(公告)日：2013-10-31

    申请号：US13978122

    申请日：2012-01-04

    Applicant: Seiji Toyoda ,  Kazunori Naganuma ,  Yuichi Okabe ,  Shogo Yagi ,  Kazutoshi Kato ,  Masahiro Ueno ,  Takashi Sakamoto ,  Tadayuki Imai ,  Jun Miyazu ,  Kazuto Noguchi ,  Shigeo Ishibashi

    Inventor： Seiji Toyoda ,  Kazunori Naganuma ,  Yuichi Okabe ,  Shogo Yagi ,  Kazutoshi Kato ,  Masahiro Ueno ,  Takashi Sakamoto ,  Tadayuki Imai ,  Jun Miyazu ,  Kazuto Noguchi ,  Shigeo Ishibashi

    IPC: G02B26/06

    CPC classification number: G02B26/06 ,  H01S3/08027 ,  H01S3/105 ,  H01S3/107 ,  H01S5/141 ,  H01S5/142 ,  H01S5/143

    Abstract: In a wavelength swept light source using a polygon mirror in a well-known art, an oscillation wavelength roughly linearly varies in an upwardly slight convex shape with respect to time. On the other hand, in a wavelength swept light source of SS-OCT, the wavelength is required to vary so that a wavenumber (inverse of wavelength) linearly varies on a time axis. The wavelength swept light source of the well-known art has had a drawback that such wavelength variation cannot be implemented; non-linear distortion occurs in a resultant OCT image; and thereby, a point spread function cannot be kept sharp. According to the present invention, in a wavelength swept light source utilizing an electro-optic deflector including a KTN and so forth, such wavelength variation is caused that the wavenumber linearly varies with respect to a time axis by applying correction, which includes a sawtooth waveform as a main waveform and an exponential component of the sawtooth waveform, to the controlled voltage of the electro-optic deflector. The controlled voltage is controlled so that, as an oscillation wavelength to be swept is swept towards a longer wavelength side, a change rate of the oscillation wavelength is increased. With the controlled voltage, the oscillation wavelength varies more quickly as the oscillation wavelength is swept towards the longer wavelength side, and time variation in the oscillation wavelength is formed in a downwardly convex shape.

    Abstract translation: 在已知技术中使用多面镜的波长扫描光源中，振荡波长相对于时间大致呈线状变化，呈向上略微凸起的形状。 另一方面，在SS-OCT的波长扫描光源中，要求波长变化，使得波数（波长的倒数）在时间轴上线性地变化。 已知技术的波长扫描光源具有不能实现这种波长变化的缺点; 在所得的OCT图像中发生非线性失真; 因此，点扩散功能不能保持尖锐。 根据本发明，在使用包括KTN等的电光偏转器的波长扫描光源中，通过应用校正导致波数相对于时间轴线性变化的波长变化，该修正包括锯齿波形 作为锯齿波形的主波形和指数分量，与电光偏转器的受控电压。 受控电压被控制为使得随着扫描的振荡波长向较长波长侧扫过，振荡波长的变化率增加。 利用受控电压，随着振荡波长向较长波长侧扫描，振荡波长变化更快，振荡波长的时间变化形成为向下凸的形状。

    Optical signal processing apparatus and optical signal processing method
    8.
    发明授权
    Optical signal processing apparatus and optical signal processing method 失效
    光信号处理装置和光信号处理方法

    公开(公告)号：US06456760B1

    公开(公告)日：2002-09-24

    申请号：US09512550

    申请日：2000-02-24

    Applicant: Takashi Kurokawa ,  Hiroyuki Tsuda ,  Katsunari Okamoto ,  Kazunori Naganuma ,  Tetsuyoshi Ishii ,  Hirokazu Takenouchi

    Inventor： Takashi Kurokawa ,  Hiroyuki Tsuda ,  Katsunari Okamoto ,  Kazunori Naganuma ,  Tetsuyoshi Ishii ,  Hirokazu Takenouchi

    IPC: G02B626

    CPC classification number: G02B6/12011 ,  G02B6/12007 ,  G02B6/12014 ,  G02B6/12021 ,  G02B6/12023 ,  G02B6/12033 ,  G02B6/2931 ,  G02B6/29394 ,  G02B6/4215 ,  G02B2006/12104 ,  G02B2006/12107 ,  G03H1/0005 ,  G03H1/0808 ,  G03H2222/33

    Abstract: An optical signal processing apparatus includes a first optical waveguide and a first slab waveguide configured to equally distribute an output light of the first optical waveguide. A first arrayed waveguide includes an aggregate of optical waveguides changing in optical length by a constant interval for dividing the output light. A second slab waveguide focuses the optical output of the first arrayed waveguide. A spatial filter receives incident light focused by the second slab waveguide and distributes the incident light on a straight line. The spatial filter also modulates the light into a desired amplitude according to the position on the straight line. The apparatus also includes a second arrayed waveguide and an aggregate of optical waveguides changing in optical length by a constant interval for applying light modulated by the spatial filter to the second arrayed waveguide. Structure is provided for converging the output light of said second arrayed waveguide to a single point. The resulting output light is then appiled to a second optical waveguide.

    Abstract translation: 光信号处理装置包括第一光波导和第一平板波导，其被配置为均匀分布第一光波导的输出光。 第一阵列波导包括光学波长的聚集体，其以光学长度改变用于分割输出光的恒定间隔。 第二平板波导将第一阵列波导的光输出聚焦。 空间滤波器接收由第二平板波导聚焦的入射光并将入射光分布在直线上。 空间滤波器还根据直线上的位置将光调制成所需的幅度。 该装置还包括第二阵列波导和光波导的聚集体，其光学长度改变一定的间隔，以将由空间滤波器调制的光施加到第二阵列波导。 提供了用于将所述第二阵列波导的输出光会聚到单个点的结构。 然后将所得到的输出光吸引到第二光波导。

    Optical signal processing apparatus and optical signal processing method
    9.
    发明授权
    Optical signal processing apparatus and optical signal processing method 失效
    光信号处理装置和光信号处理方法

    公开(公告)号：US6122419A

    公开(公告)日：2000-09-19

    申请号：US921844

    申请日：1997-09-02

    Applicant: Takashi Kurokawa ,  Hiroyuki Tsuda ,  Katsunari Okamoto ,  Kazunori Naganuma ,  Tetsuyoshi Ishii ,  Hirokazu Takenouchi

    Inventor： Takashi Kurokawa ,  Hiroyuki Tsuda ,  Katsunari Okamoto ,  Kazunori Naganuma ,  Tetsuyoshi Ishii ,  Hirokazu Takenouchi

    IPC: G02B6/12 ,  G02B6/34 ,  G03H1/00 ,  G03H1/08 ,  G02B6/26

    CPC classification number: G02B6/12011 ,  G02B6/12007 ,  G02B6/12014 ,  G02B6/12021 ,  G02B6/12023 ,  G02B6/12033 ,  G02B6/2931 ,  G02B6/29394 ,  G02B6/4215 ,  G03H1/0005 ,  G03H1/0808 ,  G02B2006/12104 ,  G02B2006/12107 ,  G03H2222/33

    Abstract: The present invention relates to an optical signal processing apparatus and optical signal processing method which enable generation, waveform shaping, waveform measurement, waveform recording, correlation processing, and the like of optical pulses of 1-10 ps. A basic construction of the optical signal processing apparatus includes an optical waveguide, a first structure for equally distributing output light of the optical waveguide, an optical waveguide comprising an aggregate of optical waveguides changing in optical length by a constant interval, a arrayed waveguide for dividing the output light, second structure for focusing optical output of the arrayed waveguide, and a mirror for receiving and reflecting incident light focused by the second structure. Or, the apparatus includes an optical waveguide, first structure for equally distributing output light of the optical waveguide, a arrayed waveguide comprising an aggregate of optical waveguides changing in optical length by a constant interval for dividing the output light, second structure for focusing optical output of the arrayed waveguide, and a spatial filter for receiving light focused by the second structure to distribute the incident light on a straight line and making desired amplitude or phase modulation of the light according to the position on the straight line and reflecting the light.

    Abstract translation: 光信号处理装置和光信号处理方法技术领域本发明涉及能够进行1-10ps光脉冲的生成，波形整形，波形测量，波形记录，相关处理等的光信号处理装置和光信号处理方法。 光信号处理装置的基本结构包括：光波导，用于均匀分布光波导的输出光的第一结构;光波导，包括以恒定间隔在光长度上变化的光波导的集合;阵列波导，用于分割 用于聚焦阵列波导的光输出的输出光，第二结构和用于接收和反射由第二结构聚焦的入射光的反射镜。 或者，该装置包括：光波导，用于均匀地分配光波导的输出光的第一结构;阵列波导，包括光学波长的集合，光学波长的集合以恒定的间隔改变以分割输出光;第二结构，用于聚焦光输出 以及用于接收由第二结构聚焦的光的空间滤光器，以将入射光分布在直线上，并根据直线上的位置并反射光来对光进行所需的幅度或相位调制。

    Process for producing garnet single crystal
    10.
    发明授权
    Process for producing garnet single crystal 失效
    石榴石单晶生产工艺

    公开(公告)号：US5851284A

    公开(公告)日：1998-12-22

    申请号：US751700

    申请日：1996-11-18

    Applicant: Shigeo Ishibashi ,  Itaru Yokohama ,  Yuzo Ishida ,  Kazunori Naganuma

    Inventor： Shigeo Ishibashi ,  Itaru Yokohama ,  Yuzo Ishida ,  Kazunori Naganuma

    IPC: C30B13/00 ,  C30B15/00 ,  C30B15/36

    CPC classification number: C30B13/00 ,  C30B15/00 ,  C30B29/28 ,  Y10S117/902

    Abstract: According to the process of the present invention for producing a garnet single crystal fiber, a crystal is grown while the direction of a seed crystal, corresponding to the direction of growth, is set in a direction having angles of at least 10.degree. from a direction equivalent to the orientation, at least 20.degree. from a direction equivalent to the orientation and at least 20.degree. from a direction equivalent from the orientation. The resulting garnet single crystal fiber does not include a core, which is formed due to facet formation, and has an excellent optical homogeneity necessary for use in an optical device such as a laser device or an isolator.

    Abstract translation: 根据用于制造石榴石单晶纤维的本发明的方法，生长晶体，同时沿着与生长方向对应的晶种的方向设定在与方向 相当于<100>取向，从等同于<110>取向的方向至少为20°，并且相对于<211>方向为至少20°。 所得到的石榴石单晶纤维不包括由于小面形成而形成的芯，并且具有用于诸如激光装置或隔离器的光学装置所需的优异的光学均匀性。

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