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    Information coding apparatus, information decoding apparatus, and method and program for the same
    2.
    发明授权
    Information coding apparatus, information decoding apparatus, and method and program for the same 有权
    信息编码装置，信息解码装置及其方法和程序

    公开(公告)号：US07469066B2

    公开(公告)日：2008-12-23

    申请号：US10517625

    申请日：2004-04-08

    申请人： Masahiro Endo ,  Yoshiaki Kurokawa ,  Shogo Yagi ,  Takaya Tanabe

    发明人： Masahiro Endo ,  Yoshiaki Kurokawa ,  Shogo Yagi ,  Takaya Tanabe

    IPC分类号： G06K9/36

    CPC分类号： G06K19/06037

    摘要： An information coding apparatus, an information decoding apparatus, and a method and a program therefor are provided, which can represent a large amount of information with a small number of pixels. Information bits which are inputted are coded as a block of a two-dimensional image made up from m (where m is a natural number)×n (where n is a natural number) pixels. Specifically, pixels which represent the information bits are arranged in a code area, which is an area of (m−o)×(n−p) pixels within a code block of m×n pixels (where o and p are natural numbers which satisfy 0

    摘要翻译： 提供一种信息编码装置，信息解码装置及其方法和程序，其可以表示具有少量像素的大量信息。 输入的信息位被编码为由m（其中m是自然数）xn（其中n是自然数）像素构成的二维图像的块。 具体地，表示信息比特的像素被排列在码区域中，该区域是m×n像素的码块内的（mo）x（np）个像素的区域（其中o和p是满足0

    Variable-focal length lens
    4.
    发明授权
    Variable-focal length lens 有权
    可变焦距镜头

    公开(公告)号：US08014061B2

    公开(公告)日：2011-09-06

    申请号：US12808105

    申请日：2008-12-26

    申请人： Tadayuki Imai ,  Masahiro Sasaura ,  Jun Miyazu ,  Shogo Yagi ,  Kazuo Fujiura

    发明人： Tadayuki Imai ,  Masahiro Sasaura ,  Jun Miyazu ,  Shogo Yagi ,  Kazuo Fujiura

    IPC分类号： G02F1/29

    CPC分类号： G02F1/29 ,  G02F1/0316 ,  G02F2001/294 ,  G02F2201/128

    摘要： To provide a variable-focal length lens capable of altering its focal length at high speed. The variable-focal length lens has an electrooptic material and electrodes formed on an incident surface of light and on an exit surface of the light of the electrooptic material. An optical axis is set so that the light is inputted into a gap where the electrodes of the incident surface are not formed and is outputted from a gap where the electrodes of the exit surface are not formed. A focus of the light that is transmitted through the electrooptic material becomes variable by varying an applied voltage between the electrodes of the incident surface and the electrodes of the exit surface.

    摘要翻译： 提供能够高速改变其焦距的可变焦距透镜。 可变焦距透镜具有电光材料和形成在光的入射表面上的电极和电光材料的光的出射表面。 光轴被设定为使得光入射到没有形成入射表面的电极的间隙，并且从未形成出射表面的电极的间隙输出光轴。 通过电光材料透射的光的焦点通过改变入射表面的电极和出射表面的电极之间的施加电压而变得可变。

    Optical memory medium and optical memory medium reproducing device
    5.
    发明申请
    Optical memory medium and optical memory medium reproducing device 审中-公开
    光存储介质和光存储介质再现装置

    公开(公告)号：US20060062040A1

    公开(公告)日：2006-03-23

    申请号：US10535579

    申请日：2004-09-16

    申请人： Hisanobu Dobashi ,  Akinori Furuya ,  Masakatsu Senda ,  Hiroshi Yoshikawa ,  Shogo Yagi ,  Hideki Sakamoto

    发明人： Hisanobu Dobashi ,  Akinori Furuya ,  Masakatsu Senda ,  Hiroshi Yoshikawa ,  Shogo Yagi ,  Hideki Sakamoto

    IPC分类号： G11C13/04 ,  G03H1/00

    CPC分类号： G11C13/042 ,  G03H1/0408 ,  G03H1/26 ,  G03H2001/2615

    摘要： An optical memory medium includes at least one multi-layered waveguide hologram ROM that uses diffracted light based on incident light to a multi-layered waveguide hologram to read out data, and at least one memory that is integrally constituted with the multi-layered waveguide hologram ROM and is used to read and write data. A reproduction apparatus for the optical memory medium includes a light inputting unit for inputting light into the multi-layered waveguide hologram of the optical memory medium, a light receiving element for receiving light diffracted by the multi-layered waveguide hologram from the light input by the light inputting unit and for converting into an electric signal, and a data record reproduction unit for reading and writing data with respect to the memory of the optical memory medium.

    摘要翻译： 光存储介质包括至少一个多层波导全息图ROM，其使用基于入射光的衍射光到多层波导全息图以读出数据，以及至少一个与多层波导全息图一体构成的存储器 ROM，用于读写数据。 用于光学存储介质的再现装置包括：光输入单元，用于将光输入到光存储介质的多层波导全息图;光接收元件，用于接收由多层波导全息图衍射的光从由 光输入单元和用于转换成电信号的数据记录再现单元，以及用于相对于光存储介质的存储器读取和写入数据的数据记录再现单元。

    Variable focusing lens and microscope
    9.
    发明授权
    Variable focusing lens and microscope 有权
    可变聚焦镜头和显微镜

    公开(公告)号：US08773749B2

    公开(公告)日：2014-07-08

    申请号：US13375212

    申请日：2010-06-11

    申请人： Tadayuki Imai ,  Masahiro Sasaura ,  Jun Miyazu ,  Shogo Yagi ,  Seiji Toyoda

    发明人： Tadayuki Imai ,  Masahiro Sasaura ,  Jun Miyazu ,  Shogo Yagi ,  Seiji Toyoda

    IPC分类号： G02F1/00 ,  G02F1/29 ,  G02F1/07 ,  G02F1/03

    CPC分类号： G02B13/0075 ,  G02F1/29 ,  G02F2001/294

    摘要： A variable focusing lens is provided that can change the focal length at a high speed. The variable focusing lens includes: a single crystal electrooptic material having inversion symmetry; a first anode formed on a first surface of the electrooptic material; a second cathode provided to have an interval to the first anode; and a first cathode and a second anode that are formed on a second surface opposed to the first surface and that are formed at positions opposed to the first anode and the second cathode. An optical axis is set so that, when light enters through a third face orthogonal to the first surface, light exists through a fourth surface opposed to the third face. A voltage applied between the first and the second pair of electrodes is changed to thereby change the focal point of light emitted from the fourth surface of the electrooptic material.

    摘要翻译： 提供可以高速改变焦距的可变聚焦透镜。 可变聚焦透镜包括：具有反转对称性的单晶电光材料; 形成在电光材料的第一表面上的第一阳极; 第二阴极，设置成具有与第一阳极的间隔; 以及形成在与第一表面相对的第二表面上并且形成在与第一阳极和第二阴极相对的位置处的第一阴极和第二阳极。 设置光轴使得当光通过与第一表面正交的第三面进入时，通过与第三面相对的第四表面存在光。 改变施加在第一和第二对电极对之间的电压，从而改变从电光材料的第四表面发射的光的焦点。

    WAVELENGTH SWEPT LIGHT SOURCE
    10.
    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

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

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

    IPC分类号： G02B26/06

    CPC分类号： G02B26/06 ,  H01S3/08027 ,  H01S3/105 ,  H01S3/107 ,  H01S5/141 ,  H01S5/142 ,  H01S5/143

    摘要： 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.

    摘要翻译： 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。