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102 条记录 (耗时 0.034 秒)

    Compound semiconductor wafer and manufacturing method thereof
    91.
    发明授权
    Compound semiconductor wafer and manufacturing method thereof 失效
    复合半导体晶片及其制造方法

    公开(公告)号：US07307290B2

    公开(公告)日：2007-12-11

    申请号：US10514973

    申请日：2004-04-13

    申请人： Takashi Iwasaki ,  Shigeru Sawada ,  Hiroya Kimura ,  Kenji Ohki

    发明人： Takashi Iwasaki ,  Shigeru Sawada ,  Hiroya Kimura ,  Kenji Ohki

    IPC分类号： H01L29/732

    CPC分类号： H01L31/03046 ,  H01L31/1035 ,  H01L31/1844 ,  Y02E10/544 ,  Y02P70/521

    摘要： A compound semiconductor wafer providing an InGaAs light receiving layer having superior crystal characteristic suitable for a near-infrared sensor includes an InAsxP1-x graded buffer layer consisting of a plurality of layers positioned on an InP substrate and an InAsyP1-y buffer layer positioned on the graded buffer layer, sandwiched between said InP substrate and the InGaAs layer, wherein maximum value of PL light emission intensity at an interface of each of the layers of the graded buffer layer and the buffer layer is, at every interface, smaller than 3/10 of the maximum PL light emission intensity of the buffer layer.

    摘要翻译： 提供具有适合于近红外传感器的优异晶体特性的InGaAs光接收层的化合物半导体晶片包括由多个元件组成的InAs×1×1×1×××××梯度缓冲层 位于InP衬底上的层和位于渐变缓冲层上的InAs / SubPl-1-y +缓冲层，夹在所述InP衬底和InGaAs层之间，其中最大 在渐变缓冲层和缓冲层的每个层的界面处的PL发光强度的值在每个界面处小于缓冲层的最大PL发光强度的3/10。

    Monochromator and optical spectrum analyzer
    94.
    发明授权
    Monochromator and optical spectrum analyzer 失效
    单色器和光谱分析仪

    公开(公告)号：US06853450B1

    公开(公告)日：2005-02-08

    申请号：US09578962

    申请日：2000-05-25

    申请人： Takashi Iwasaki ,  Tomoichi Soeda

    发明人： Takashi Iwasaki ,  Tomoichi Soeda

    IPC分类号： G01J3/02 ,  G01J3/18

    CPC分类号： G01J3/02 ,  G01J3/0286 ,  G01J3/18 ,  G02B26/0808

    摘要： A monochromator comprises an optical ray input section which limits the width of optical rays input from a light source, a first concave mirror for converting the optical rays passing through the optical ray input section into parallel rays, a diffraction grating for separating the parallel rays by wavelength into diffracted rays, a second concave mirror for condensing the diffracted rays when the diffracted rays are input, an optical ray output section which limits a wavelength band width of the condensed rays, and a substrate to which the optical ray input section, the first concave mirror, the diffraction grating, the second concave mirror, and the optical ray output section are fixed. A coefficient of linear expansion of a focal length of the first concave mirror, a coefficient of linear expansion of a focal length of the second concave mirror, and a coefficient of linear expansion of a material forming the substrate in the monochromator are approximately the same.

    摘要翻译： 单色仪包括限制从光源输入的光线的宽度的光线输入部，将通过光线输入部的光线转换为平行光的第一凹面镜，将平行光分离的衍射光栅， 衍射光线的波长带宽的光线输出部，限制聚光的波长带宽的光线输出部，以及光线输入部，第一 凹面镜，衍射光栅，第二凹面镜和光线输出部分是固定的。 第一凹面镜的焦距的线性膨胀系数，第二凹面镜的焦距的线性膨胀系数以及在单色仪中形成基板的材料的线膨胀系数大致相同。

    Wavelength characteristic measurement apparatus
    95.
    发明授权
    Wavelength characteristic measurement apparatus 有权
    波长特性测量装置

    公开(公告)号：US06633380B1

    公开(公告)日：2003-10-14

    申请号：US09561450

    申请日：2000-04-28

    申请人： Tohru Mori ,  Takashi Iwasaki

    发明人： Tohru Mori ,  Takashi Iwasaki

    IPC分类号： G01J306

    CPC分类号： G01J3/06

    摘要： An optical spectrum analyzer 100 and a wavelength variable light source 101 have each a sweep synchronization start function. A correction function of the rotation speed of a motor 106 for varying the angle of a diffraction grating in a spectroscope 104 so that extracted wavelength and output signal light wavelength match over a setup sweep wavelength range is found from the output signal light wavelength characteristic relative to the rotation angle of a spectral element 119 and the extracted wavelength of the spectroscope 104, and the rotation angle of motor 106 for driving the spectroscope 104 is varied for each setup wavelength in accordance with the correction function, then sweep is performed.

    摘要翻译： 光谱分析仪 100 和波长可变光源 101 具有扫描同步启动功能。 因此，为了改变分光镜 104 中的衍射光栅的角度，可以使用电机 106 的旋转速度的校正功能 从相对于光谱元素 119 的旋转角度的输出信号光波长特性中可以发现在建立扫描波长范围内提取的波长和输出信号光波长匹配， 分辨率 104 的波长，以及用于驱动分光镜 104的电机 106 的旋转角度 根据校正功能为每个设置波长而变化，然后执行扫描。

    Optical spectrum calculating method
    96.
    发明授权
    Optical spectrum calculating method 失效
    光谱计算方法

    公开(公告)号：US5923420A

    公开(公告)日：1999-07-13

    申请号：US87197

    申请日：1998-05-29

    申请人： Takashi Iwasaki

    发明人： Takashi Iwasaki

    IPC分类号： G01J3/02 ,  G01J3/28 ,  G01J3/42

    CPC分类号： G01J3/02 ,  G01J3/027 ,  G01J3/28

    摘要： The object of the present invention it to provide an optical spectrum calculation method that can find an optical spectrum by an arbitrarily determined wavelength bandwidth even in a spectrometer in which the width of the emission slit cannot be arbitrarily changed.In order to attain this objective, a wavelength bandwidth memory unit 40 is provided, and in this wavelength bandwidth memory unit 40, the characteristics of the transiting wavelength bandwidth for the measured wavelength of spectrometer 5' are recorded. CPU 34 finds the wavelength bandwidth for each measurement point based on the recorded wavelength bandwidth. Next, the optical intensity values for each measurement point are calculated from the optical intensity measurement value for each measurement point the measurement values near the center of said measurement value regiondded over the range of the desired wavelength bandwidth, and further, compensated based on the ratio between the wavelength bandwidth for each measurement point and the wavelength interval of each measurement point.

    摘要翻译： 本发明的目的在于提供即使在发光狭缝的宽度不能任意改变的光谱仪中也可以通过任意确定的波长带宽找到光谱的光谱计算方法。 为了实现该目的，提供了波长带宽存储单元40，并且在该波长带宽存储单元40中记录了用于测量波长的测量波长5'的转移波长带宽的特性。 CPU34根据记录的波长带宽求出每个测量点的波长带宽。 接下来，根据各测量点的光强度测量值，计算出在所需波长带宽的范围内的所述测量值区域的中心附近的测量值，并且还基于比率 每个测量点的波长带宽和每个测量点的波长间隔之间。

    Optical spectrum measuring device
    98.
    发明授权
    Optical spectrum measuring device 失效
    光谱测量装置

    公开(公告)号：US5767966A

    公开(公告)日：1998-06-16

    申请号：US719365

    申请日：1996-09-25

    申请人： Takashi Iwasaki

    发明人： Takashi Iwasaki

    IPC分类号： G01J3/04 ,  G01J3/18 ,  G01J3/28

    CPC分类号： G01J3/18 ,  G01J3/04

    摘要： Light source 1 emits light composed of various wavelength components from an emission end 1a. An optical fiber 2 receives the light from one end portion 2a and emits the light from the other end portion 2b. A Czerny-Turner dispersion spectroscope is formed by this end portion 2b, concave mirrors 3 and 5, a diffraction grating 4, and an emission slit 6. A mask 9 restricts the aperture diameter, so as to remove light which has spread wider than the aperture diameter of the mask 9 from the light which has passed through the emission slit 6.

    摘要翻译： 光源1从发射端1a发射由各种波长成分组成的光。 光纤2从一个端部2a接收光，并从另一端部2b发射光。 由该端部2b，凹面镜3和5，衍射光栅4和发射狭缝6形成Czerny-Turner色散光谱仪。掩模9限制光圈直径，以便去除已经扩展到 掩模9的光径从已经通过发光狭缝6的光线开始。

    Organophilic clay
    99.
    发明授权
    Organophilic clay 失效
    有机粘土

    公开(公告)号：US5376604A

    公开(公告)日：1994-12-27

    申请号：US909640

    申请日：1992-07-07

    申请人： Takashi Iwasaki ,  Hiromichi Hayashi ,  Kazuo Torii ,  Takahiro Sekimoto ,  Toshikazu Fujisaki ,  Motoyuki Ikegami ,  Yutaro Ishida

    发明人： Takashi Iwasaki ,  Hiromichi Hayashi ,  Kazuo Torii ,  Takahiro Sekimoto ,  Toshikazu Fujisaki ,  Motoyuki Ikegami ,  Yutaro Ishida

    IPC分类号： C01B33/44 ,  C04B33/00

    CPC分类号： C01B33/44 ,  Y10S106/03 ,  Y10S106/04

    摘要： There are disclosed an organophilic clay which comprises a hydroxypolyoxyethylenealkyl ammonium ion represented by the following formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be the same or different, and each represent a (CH.sub.2 CH.sub.2 O).sub.n H group (where n is 2 or more, preferably 2 to 20), a hydrogen atom or an alkyl group having 1 to 30 carbon atoms, provided that one to three of R.sub.1 to R.sub.4 is/are a (CH.sub.2 CH.sub.2 O).sub.n H group(s) and at least three of R.sub.1 to R.sub.4 are (CH.sub.2 CH.sub.2 O).sub.n H group(s) and alkyl group(s),being introduced in interlayers of an expandable layer silicate, a method for preparing the same and a gellant for a high polar organic solvent.

    摘要翻译： 公开了一种亲有机质的粘土，其包含由下式表示的羟基聚氧乙烯烷基铵离子：其中R 1，R 2，R 3和R 4可以相同或不同，并且各自表示（CH 2 CH 2 O）n H基（其中n为2 或更多，优选2至20），氢原子或具有1至30个碳原子的烷基，条件是R 1至R 4中的一至三个为（CH 2 CH 2 O）n H基团，并且R 1至少三个 到R4是（C 2 CH 2 O）n H基和烷基，被引入到可膨胀层硅酸盐的中间层中，其制备方法和用于高极性有机溶剂的胶凝剂。