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    Method and device for optical D-A conversion
    1.
    发明授权
    Method and device for optical D-A conversion 失效
    用于光学D-A转换的方法和装置

    公开(公告)号：US4568911A

    公开(公告)日：1986-02-04

    申请号：US452807

    申请日：1982-12-23

    申请人： Ysukasa Yamashita ,  Masaharu Matano ,  Kazuhiko Mori ,  Nobuhisa Inoue

    发明人： Ysukasa Yamashita ,  Masaharu Matano ,  Kazuhiko Mori ,  Nobuhisa Inoue

    IPC分类号： G02F1/335 ,  G02F7/00

    CPC分类号： G02F1/335 ,  G02F7/00

    摘要： A surface acoustic wave generator is provided on an optical waveguide layer of an acousto-optical material. A group of parallel light beams each made significant according to the position of the path of propagation of light are made incident on the waveguide layer at an angle satisfying the Bragg diffraction condition with respect to a surface acoustic wave, and are successively diffracted by the wave, whereby a digital amount represented by the presence of light beams of the group is converted to an analog amount in terms of the power of light.

    摘要翻译： 表面声波发生器设置在声光材料的光波导层上。 根据光的传播路径的位置，使一组平行光束以对应于表面声波的角度满足布拉格衍射条件入射到波导层上，并被波浪 由此，根据光的功率，将由该组的光束的存在所表示的数字量转换为模拟量。

    Integral pickup for an optical digital disc using saw deflection and lenses
    3.
    发明授权
    Integral pickup for an optical digital disc using saw deflection and lenses 失效
    使用锯偏转和透镜的光学数字光盘的整体拾取

    公开(公告)号：US4747090A

    公开(公告)日：1988-05-24

    申请号：US559050

    申请日：1983-10-13

    申请人： Tsukasa Yamashita ,  Nobuhisa Inoue ,  Kazuhiko Mori ,  Masaharu Matano ,  Isao Taguchi

    发明人： Tsukasa Yamashita ,  Nobuhisa Inoue ,  Kazuhiko Mori ,  Masaharu Matano ,  Isao Taguchi

    IPC分类号： G11B7/085 ,  G11B7/09 ,  G11B7/12 ,  G11B7/135 ,  G02B6/12

    CPC分类号： G11B7/0917 ,  G11B7/08547 ,  G11B7/1245

    摘要： A photo-pickup wherein a light emitting portion, a surface acoustic wave generating portion, a lens portion, a light receiving portion and a control portion are integrally integrated on a base plate formed on its surface with a light transmission path. The light emitting portion propagates a light beam to the light transmission path. The light beam propagating in the light transmission path is first deflected within a plane of the light transmission path by surface acoustic wave propagating on the light transmission path and propagated towards the lens portion. The lens portion is provided to project the light beram outside from the light transmission path and effect two-dimentional focusing of the projected beam and adjustment of focal position. The light receiving portion comprises a combination of a plurality of light receiving elements disposed at suitable intervals from the projected position of the light beam to receive a reflected light of the light beam. The control portion is provided to receive an output of the light receiving portion to process a signal and supply said control signal to the surface acoustic wave generating portion and lens portion, thereby effecting the control of deflection angle of the light beam, two-dimentional focusing of the projected beam and control of focal position.

    摘要翻译： 其中发光部分，表面声波发生部分，透镜部分，光接收部分和控制部分的光拾取器一体地集成在其表面上形成的基板上，具有光传输路径。 发光部将光束传播到光传输路径。 在光传输路径中传播的光束首先在光传输路径的平面内通过在光传输路径上传播并在透镜部分传播的表面声波而偏转。 透镜部分被设置成将光束从光传播路径向外突出，并且实现投影光束的二维聚焦和焦点位置的调整。 光接收部分包括多个光接收元件的组合，多个光接收元件以与光束的投影位置适当的间隔设置以接收光束的反射光。 控制部被设置为接收光接收部分的输出以处理信号并将所述控制信号提供给表面声波产生部分和透镜部分，从而实现光束偏转角的控制，二维聚焦 的投影光束和焦点位置的控制。

    Device and method for comparing optical signals
    4.
    发明授权
    Device and method for comparing optical signals 失效
    用于比较光信号的装置和方法

    公开(公告)号：US4604707A

    公开(公告)日：1986-08-05

    申请号：US471728

    申请日：1983-03-03

    申请人： Tsukasa Yamashita ,  Nobuhisa Inoue ,  Kazuhiko Mori ,  Masaharu Matano

    发明人： Tsukasa Yamashita ,  Nobuhisa Inoue ,  Kazuhiko Mori ,  Masaharu Matano

    IPC分类号： G02F1/335 ,  G06E1/02 ,  G06G9/00

    CPC分类号： G02F1/335 ,  G06E1/02

    摘要： An optical comparator for comparing, bit by bit, corresponding bits of two optical digital signals which are identical in the number of constituent optical bit signals, includes an optical waveguide layer made of an acousto-optical material. A surface acoustic wave generator generates a surface acoustic wave propagating on the waveguide layer, and a photocoupler directs the constituent bit signals to be of the two optical digital signals incident on the waveguide layer so as to satisfy the Bragg diffraction condition with respect to the surface acoustic wave propagating on the waveguide layer. A photosensor detects diffracted light and/or undiffracted light which has passed through a surface acoustic wave interaction region. The position of the generator and/or the surface acoustic wave generating timing is so determined that initiation or cessation of the interaction of the surface acoustic wave with a bit of one of the optical digital signals is simultaneous with initiation or cessation of the wave interaction with a corresponding bit of the other optical bit signal.

    摘要翻译： 用于比较各组成光位信号数目相同的两个光数字信号的相应位的光比较器包括由声光材料制成的光波导层。 表面声波发生器产生在波导层上传播的表面声波，光耦合器将入射在波导层上的两个光数字信号的构成位信号引导为相对于表面满足布拉格衍射条件 在波导层上传播的声波。 光传感器检测已经通过表面声波相互作用区域的衍射光和/或未衍射光。 发电机和/或表面声波产生定时的位置被确定为表面声波与光学数字信号之一的位的相互作用的启动或停止与波形相互作用的起始或停止同时发生 另一个光学位信号的相应位。

    Optical switch device
    7.
    发明授权
    Optical switch device 失效
    光开关器件

    公开(公告)号：US4491384A

    公开(公告)日：1985-01-01

    申请号：US339309

    申请日：1982-01-15

    申请人： Tsukasa Yamashita ,  Masaharu Matano ,  Kazuhiko Mori ,  Norihiro Ota

    发明人： Tsukasa Yamashita ,  Masaharu Matano ,  Kazuhiko Mori ,  Norihiro Ota

    IPC分类号： G02F1/335 ,  G02B5/14

    CPC分类号： G02F1/335

    摘要： By an electro-optical switch or an optical switch element utilizing diffraction by a surface acoustic wave, an input light beam is first switched over to one of light beams two or a multiple of two in number and propagating in different directions. By a surface acoustic wave which is discretely variable in frequency, the light beam in each of the different propagation direction is deflected at angles in accordance with the varying frequencies while propagating through an optical waveguide layer. It is possible to obtain by switching a very large total number of output light beams which are equal in number to the number of resolvable deflected light beams obtained in the frequency bandwidth of one surface acoustic wave, multiplied by the number of light beams obtained by switching with the optical switch element.

    摘要翻译： 通过利用表面声波衍射的电光开关或光开关元件，首先将输入光束切换成两个或两个数量的光束中的一个，并在不同方向上传播。 通过频率离散变化的表面声波，在通过光波导层传播的同时，根据变化的频率以不同传播方向的每一个的光束偏转。 可以通过切换数量相等于在一个声表面波的频率带宽中获得的可分辨偏转光束的数量乘以通过切换获得的光束的数量的输出光束的总数而获得 与光开关元件。

    Parallel-to-serial conversion of optical data using acousto-optical diffraction
    8.
    发明授权
    Parallel-to-serial conversion of optical data using acousto-optical diffraction 失效
    使用声光衍射的光学数据的并行到串行转换

    公开(公告)号：US4595253A

    公开(公告)日：1986-06-17

    申请号：US716605

    申请日：1985-03-27

    申请人： Tsukasa Yamashita ,  Masaharu Matano ,  Kazuhiko Mori ,  Norihiro Ota

    发明人： Tsukasa Yamashita ,  Masaharu Matano ,  Kazuhiko Mori ,  Norihiro Ota

    IPC分类号： G02F1/335 ,  G02B6/10

    CPC分类号： G02F1/335

    摘要： A plurality of incident light beams are parallelly propagated in a thin film optical waveguide. Simultaneously, a surface acoustic wave is propagated in said thin film optical waveguide, and the plurality of incident light beams are selectively successively guided to a light output part by the acousto-optic effect of said by Bragg diffraction. The diffraction light beams are serially output. In this way optical data parallelly input are directly converted into optical data in a serial state.

    摘要翻译： 多个入射光束在薄膜光波导中平行传播。 同时，在所述薄膜光波导中传播表面声波，并且通过所述布拉格衍射的声光效应将多个入射光束选择性地连续地引导到光输出部分。 衍射光束被串联输出。 以这种方式，并行输入的光学数据被直接转换为串行状态的光学数据。

    Collimator, manufacturing method of collimator, and X-ray CT device
    10.
    发明授权
    Collimator, manufacturing method of collimator, and X-ray CT device 有权
    准直仪，准直仪的制造方法和X射线CT装置

    公开(公告)号：US09066675B2

    公开(公告)日：2015-06-30

    申请号：US13607385

    申请日：2012-09-07

    申请人： Kazuhiko Mori

    发明人： Kazuhiko Mori

    IPC分类号： A61B6/06 ,  G21K1/02 ,  A61B6/03

    CPC分类号： A61B6/06 ,  A61B6/032 ,  G21K1/025 ,  Y10T29/49826

    摘要： A collimator includes a plurality of first plate-shaped parts, and a plurality of second plate-shaped parts interlocking with the plurality of first plate-shaped parts. Each of the plurality of first plate-shaped parts and the plurality of second plate-shaped parts arranged with a rectangular spacing therebetween and form a grid-like pattern. Each of the first plate-shaped parts comprises a first slotted plate part having a plurality of first slits formed thereon that is fixed to each of the second plate-shaped parts. A second slotted plate part having a plurality of second slits formed thereon is coupled to a side of the second plate-shaped parts opposite to the first slotted plate part. An adjustment plate part is disposed between the first slotted plate part and the second slotted plate part.

    摘要翻译： 准直器包括多个第一板状部件和与多个第一板状部件互锁的多个第二板状部件。 多个第一板状部件和多个第二板状部件中的每一个在它们之间以矩形间隔排列并形成格子状图案。 每个第一板状部分包括第一开槽板部分，其具有形成在其上的多个第一狭缝，其固定到每个第二板状部分。 形成在其上的多个第二狭缝的第二开槽板部分联接到与第一开槽板部分相对的第二板状部分的一侧。 调整板部分设置在第一开槽板部分和第二开槽板部分之间。