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36 条记录 (耗时 0.025 秒)

    Method of fabricating optical switch
    2.
    发明授权
    Method of fabricating optical switch 失效
    制造光电开关的方法

    公开(公告)号：US5187758A

    公开(公告)日：1993-02-16

    申请号：US730721

    申请日：1991-07-16

    申请人： Masanori Ueda ,  Hisashi Sawada ,  Akira Tanaka ,  Noboru Wakatsuki

    发明人： Masanori Ueda ,  Hisashi Sawada ,  Akira Tanaka ,  Noboru Wakatsuki

    IPC分类号： G02B6/35 ,  G02B6/36

    CPC分类号： G02B6/3508 ,  G02B6/3616 ,  G02B6/3546 ,  G02B6/3572 ,  G02B6/3578 ,  G02B6/358 ,  G02B6/3652

    摘要： A method of fabricating an optical switch including a stationary support member, a movable support member, and at least one pair of optical fibers, the pair of optical fibers being supported on the stationary and movable support members, respectively, so that an optical path between optical fibers is changed by moving the movable support member. The method comprises the steps of preparing a guide with V-shaped grooves, securing at least one optical fiber element on the surface of the guide, bridging and fixing the guide on the stationary and movable support members, and separating the guide along at least a line extending between the stationary and movable support members. Thus, the guide and the optical fiber element is separated into a first part supported by the stationary support member and a second part supported by the movable support member, to constitute the optical switch having at least one pair of optical fibers.

    Reflection type active matrix liquid crystal apparatus
    4.
    发明授权
    Reflection type active matrix liquid crystal apparatus 失效
    反射型有源矩阵液晶装置

    公开(公告)号：US5251049A

    公开(公告)日：1993-10-05

    申请号：US717066

    申请日：1991-06-18

    申请人： Masuji Sato ,  Akira Tanaka ,  Noboru Wakatsuki

    发明人： Masuji Sato ,  Akira Tanaka ,  Noboru Wakatsuki

    IPC分类号： G02F1/137 ,  G02F1/139 ,  G02F1/133

    CPC分类号： G02F1/1393 ,  G02F2203/02

    摘要： A reflection type liquid crystal apparatus comprising a liquid crystal panel (26) composed of a pair of first and second opposed plates (30, 32) for accommodating a liquid crystal (34) therebetween. A reflecting layer (28) is provided in the inner surface of the second plate, and the first plate is transparent. A common electrode (36) is provided in the first plate, and picture electrodes (38) are located in the second plate. A beam splitter (24) is located in front of the liquid crystal panel (26) for supplying polarized light to the first plate and for selectively transmitting polarized light emerging from the liquid crystal panel (24). The liquid crystal (34) comprises a nematic liquid crystal material having a positive birefringence and arranged in a homogeneous orientation with a constant director (n). This arrangement being such that incident polarized light is propagated in the liquid crystal in a double refraction mode with a first birefringence value and the emerging polarized light thereof is substantially transmitted by the second polarizer means (24) when a voltage is not applied to the liquid crystal; and incident polarized light is propagated in the liquid crystal in a double refraction mode with a second birefringence value smaller than the first birefringence value and the emerging polarized light thereof is not substantially transmitted by the second polarizer means (24) when a voltage is applied to the liquid crystal.

    Piezoelectric transformer producing an output A.C. voltage with reduced distortion
    8.
    发明授权
    Piezoelectric transformer producing an output A.C. voltage with reduced distortion 失效
    压电变压器产生输出交流电压，具有减小的失真

    公开(公告)号：US5371430A

    公开(公告)日：1994-12-06

    申请号：US57500

    申请日：1993-05-06

    申请人： Masuji Sato ,  Noboru Wakatsuki ,  Masanori Ueda ,  Hiroshi Hasegawa

    发明人： Masuji Sato ,  Noboru Wakatsuki ,  Masanori Ueda ,  Hiroshi Hasegawa

    IPC分类号： H01L41/107 ,  H01L41/08

    CPC分类号： H01L41/107

    摘要： A piezoelectric transformer comprises a piezoelectric substrate carrying thereon an input electrode structure provided on an upper major surface of the piezoelectric substrate for receiving an a.c. voltage for causing an excitation of an elastic wave in the substrate such that the elastic wave propagates through the substrate in a longitudinal direction, an output electrode structure provided on a lower major surface of the piezoelectric substrate for producing an output a.c. voltage by converting the elastic wave into an electric voltage, wherein the input electrode structure and the output electrode structure have a periodical structure in the longitudinal direction with a pitch corresponding to a wavelength of the elastic wave, and wherein at least one of the first and second electrode structures extend in the longitudinal direction from the first longitudinal edge to the second longitudinal edge substantially continuously.

    摘要翻译： 一种压电变压器包括一个压电基板，其上带有一个输入电极结构，该输入电极结构设置在压电基板的上主表面上，用于接收一个直流电压。 使弹性波沿着纵向传播通过基板的输出电压结构的输出电极结构的输出电压结构的输出电极结构。 通过将弹性波转换成电压，其中，所述输入电极结构和所述输出电极结构在纵向方向上具有对应于所述弹性波的波长的间距的周期性结构，并且其中，所述第一和 第二电极结构基本上连续地从第一纵向边缘延伸到第二纵向边缘。

    Surface acoustic wave filter
    10.
    发明授权
    Surface acoustic wave filter 失效
    表面声波滤波器

    公开(公告)号：US4420730A

    公开(公告)日：1983-12-13

    申请号：US314430

    申请日：1981-10-23

    申请人： Noboru Wakatsuki ,  Yuji Kojima ,  Masaaki Ono

    发明人： Noboru Wakatsuki ,  Yuji Kojima ,  Masaaki Ono

    IPC分类号： H03H3/08 ,  H03H9/02 ,  H03H9/145 ,  H03H9/25 ,  H03H9/64 ,  H03H9/72 ,  H03H9/76 ,  H03H9/70

    CPC分类号： H03H9/76 ,  H03H9/02795 ,  H03H9/1452 ,  H03H9/1455 ,  H03H9/14573 ,  H03H9/6479 ,  H03H9/6496 ,  H03H9/72 ,  H03H9/02992 ,  H03H9/14547

    摘要： A surface acoustic wave filter which comprises: a substrate of piezoelectric material; a multistrip coupler for changing the track of a signal comprising a plurality of parallel conductive strips; at least two transducers disposed on one side of the multistrip coupler; at least another two transducers disposed on the other side of the multistrip coupler. The latter two transducers facing the former two transducers. One pair of the transducers which face each other through the multistrip coupler constitutes input transducers while the other pair of the transducers constitutes output transducers.

    摘要翻译： 一种表面声波滤波器，包括：压电材料的基板; 用于改变包括多个平行导电条的信号的轨迹的多段耦合器; 至少两个换能器设置在所述多段耦合器的一侧上; 至少另外两个换能器设置在多段耦合器的另一侧上。 后两个传感器面对前两个传感器。 通过多段耦合器彼此面对的一对换能器构成输入换能器，而另一对换能器构成输出换能器。