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102 条记录 (耗时 0.031 秒)

    Optical frequency synthesizer/sweeper
    2.
    发明授权
    Optical frequency synthesizer/sweeper 失效
    光频合成器/清扫机

    公开(公告)号：US4893353A

    公开(公告)日：1990-01-09

    申请号：US942448

    申请日：1986-12-16

    申请人： Hideto Iwaoka ,  Akira Ohte ,  Koji Akiyama

    发明人： Hideto Iwaoka ,  Akira Ohte ,  Koji Akiyama

    IPC分类号： G01J3/28 ,  G01J9/04 ,  G02F1/11 ,  G02F2/00 ,  H01S3/13 ,  H01S5/0687 ,  H04B10/50 ,  H04B10/572 ,  H04B9/00

    CPC分类号： H01S5/0687 ,  G02F1/11 ,  G02F2/002 ,  H04B10/50 ,  H04B10/506 ,  H04B10/572 ,  G01J3/28 ,  G01J9/04 ,  H01S3/1303

    摘要： An optical frequency synthesizer and/or sweeper, whereby a coherent optical output light is obtained by using a wavelength stabilized laser and an optical phase locked loop wherein the frequency of the output has the characteristics of high accuracy, high stability and narrow spectral line width. The optical phase locked loop comprises a tunable laser, an optical frequency multiplier, an optical frequency shifter and an optical heterodyne detector, wherein the optical phase locked loop is capable of precisely outputting an arbitrary wavelength by feeding back an output optical frequency.

    摘要翻译： 一种光频合成器和/或清扫器，由此通过使用波长稳定的激光器和光锁相环获得相干光输出光，其中输出的频率具有高精度，高稳定性和窄谱线宽度的特性。 光锁相环包括可调激光器，光倍增器，光移频器和光外差检测器，其中光锁相环能够通过反馈输出光频率来精确地输出任意波长。

    Semiconductor laser wavelength stabilizer
    4.
    发明授权
    Semiconductor laser wavelength stabilizer 失效
    半导体激光波长稳定器

    公开(公告)号：US4833681A

    公开(公告)日：1989-05-23

    申请号：US937359

    申请日：1986-12-03

    申请人： Koji Akiyama ,  Akira Ohte ,  Hideto Iwaoka

    发明人： Koji Akiyama ,  Akira Ohte ,  Hideto Iwaoka

    IPC分类号： G01J3/28 ,  G01J9/04 ,  G02F1/11 ,  G02F2/00 ,  H01S3/13 ,  H01S5/0687 ,  H04B10/50 ,  H04B10/572

    CPC分类号： G02F1/11 ,  G01J9/04 ,  G02F2/002 ,  H01S5/0687 ,  H04B10/50 ,  H04B10/506 ,  H04B10/572 ,  G01J3/28 ,  H01S3/1303

    摘要： Light relative to non-modulated output light emitted from a semiconductor laser is applied to an absorption cell. Frequency modulating signals are converted into amplitude modulation signals of the output light through a modulating means by utilizing absorptive properties of the absorption cell. Transmissive light outputs of the absorption cell are synchronously rectified by a lock in amplifier, and an electric current supplied to the semiconductor laser is controlled so that the output signals of the lock in amplifier are arranged to be a predetermined value. The wavelength of the output light is locked to the absorption line of the standard substance in the absorption cell. Advantageously, the invention stabilizes the instantaneous value of the oscillation frequency.

    摘要翻译： 将相对于从半导体激光器发射的未调制输出光的光施加到吸收单元。 频率调制信号通过利用吸收单元的吸收特性通过调制装置转换成输出光的幅度调制信号。 吸收单元的透射光输出通过放大器的锁定同步整流，并且控制提供给半导体激光器的电流，使得放大器中的锁定的输出信号被布置为预定值。 输出光的波长被锁定在吸收单元中的标准物质的吸收线上。 有利地，本发明稳定了振荡频率的瞬时值。

    High resolution digital diffraction grating scale encoder
    5.
    发明授权
    High resolution digital diffraction grating scale encoder 失效
    高分辨率数字衍射光栅刻度编码器

    公开(公告)号：US4629886A

    公开(公告)日：1986-12-16

    申请号：US591511

    申请日：1984-03-20

    申请人： Koji Akiyama ,  Hideto Iwaoka

    发明人： Koji Akiyama ,  Hideto Iwaoka

    IPC分类号： G01D5/38 ,  H01J3/14

    CPC分类号： G01D5/38

    摘要： An optical scale reader comprises a light source for radiating a beam of coherent light on a reflective scale, a half mirror for mixing light beams from the light source which are reflected and diffracted by the scale for interference with each other, an optical system for causing the interfering light beams leaving the half mirror on its opposite sides to be 90.degree. out of phase with each other so that the light beams will fall on the half mirror at a particular angle of incidence, photodetectors for detecting the interfering light beams, respectively, which have left the half mirror, and a signal processor for processing first and second electric signals which are supplied from the photodetectors and 90.degree. out of phase with each other to generate a signal indicative of the distance which the scale has moved. There is also disclosed a position control device incorporating the optical scale reader.

    摘要翻译： 一种光学秤读取器，包括用于在反射比例尺上照射相干光束的光源，用于混合来自光源的光束的半反射镜，该反射镜被彼此反射和衍射的刻度尺相互干涉，用于引起 离开其相反侧的半反射镜的干涉光束彼此相差90°，使得光束以特定的入射角落在半反射镜上，分别用于检测干涉光束的光电检测器， 已经离开半反射镜的信号处理器和用于处理从光电检测器提供的第一和第二电信号并且彼此相差90°的信号处理器，以产生指示刻度尺移动的距离的信号。 还公开了一种结合光学刻度读取器的位置控制装置。

    Tandem seal device
    8.
    发明授权
    Tandem seal device 有权
    串联密封装置

    公开(公告)号：US08585060B2

    公开(公告)日：2013-11-19

    申请号：US12743602

    申请日：2008-11-18

    申请人： Yoji Oshii ,  Koji Akiyama ,  Joji Watanabe ,  Atsushi Kaneko

    发明人： Yoji Oshii ,  Koji Akiyama ,  Joji Watanabe ,  Atsushi Kaneko

    IPC分类号： F16J15/34

    CPC分类号： F16J15/342 ,  F16J15/004 ,  F16J15/3484 ,  F16J15/40

    摘要： A mechanical seal device for obtaining appropriate sliding properties under any conditions, such as a pressure of seal is low or high. Both first grooves 463 and second grooves 464 are formed on a sliding face 46 of a stationary ring 46. The first grooves which are not in communication externally and act for reducing contact resistance of a sliding face by a dynamic pressure action when a rotary shaft rotates, the second grooves act for reducing the contact resistance of the sliding face constantly by introducing a pressure from external. Thus, a mechanical seal device which is available to seal sealed fluid under an appropriate dry contact status wherein a sliding face load is reduced in any condition can be provided.

    摘要翻译： 用于在诸如密封压力的任何条件下获得适当的滑动性能的机械密封装置低或高。 第一凹槽463和第二凹槽464都形成在静止环46的滑动面46上。当旋转轴旋转时，不与外部连通的第一凹槽用于通过动压力降低滑动面的接触电阻 ，第二槽用于通过从外部引入压力来不断地减小滑动面的接触电阻。 因此，可以提供在适当的干接触状态下可用于密封密封流体的机械密封装置，其中在任何情况下滑动面负载减小。

    SHAFT SEALING DEVICE
    9.
    发明申请
    SHAFT SEALING DEVICE 有权
    轴封密封装置

    公开(公告)号：US20100327533A1

    公开(公告)日：2010-12-30

    申请号：US12667214

    申请日：2009-01-28

    申请人： Koji Akiyama

    发明人： Koji Akiyama

    IPC分类号： F16J15/34 ,  F16J15/16 ,  F16J15/40

    CPC分类号： F16J15/3484 ,  F16J15/006 ,  F16J15/3412 ,  F16J15/40

    摘要： A shaft sealing device in which a load acting on a sliding section of the device is reduced to extend the life of the device and which permits no leakage of fluid in a machine to an atmospheric air to eliminate the need of recovery of the fluid. The shaft sealing device has seals arranged in three stages in the axial direction between a seal case and a rotating shaft passed through the inner periphery of the seal case. Of the seals of the three stages, a first-stage seal on the machine's inner side and a third-stage seal on the machine's outer side have a contact type mechanical seal structure in which a rotational sealing element and a stationary sealing element are in close sliding contact with each other. Further, of the seals of the three stages, the intermediate second-stage seal has a contactless mechanical seal structure in which a rotational sealing element and a stationary sealing element are kept by dynamic pressure so as not to be in contact with each other. A high-pressure sealing liquid is supplied by the pressure of fluid in the machine to an annular space surrounded by that portion of the seal case which extends from the first-stage seal to the second-stage seal.

    摘要翻译： 一种轴密封装置，其中作用在装置的滑动部分上的负载减小以延长装置的寿命，并且其不允许机器中的流体泄漏到大气中以消除对流体的回收的需要。 轴封装置具有在密封壳体和通过密封壳体的内周的旋转轴之间沿轴向三级排列的密封件。 在三级的密封件中，机器内侧的第一级密封件和机器外侧的第三级密封件具有接触型机械密封结构，其中旋转密封元件和固定密封元件处于闭合状态 彼此滑动接触。 此外，在三级的密封件中，中间的第二级密封件具有非接触的机械密封结构，其中通过动态压力保持旋转密封元件和固定密封元件以不彼此接触。 高压密封液体通过机器中的流体的压力供应到由从第一级密封件延伸到第二级密封件的密封件的该部分包围的环形空间中。

    PLASMA DISPLAY PANEL AND METHOD FOR MANUFACTURING THE SAME
    10.
    发明申请
    PLASMA DISPLAY PANEL AND METHOD FOR MANUFACTURING THE SAME 审中-公开
    等离子体显示面板及其制造方法

    公开(公告)号：US20100171420A1

    公开(公告)日：2010-07-08

    申请号：US12663938

    申请日：2009-03-25

    申请人： Koji Akiyama ,  Koji Aoto ,  Masaki Nishimura ,  Masaki Nishinaka

    发明人： Koji Akiyama ,  Koji Aoto ,  Masaki Nishimura ,  Masaki Nishinaka

    IPC分类号： H01J17/49 ,  H01J9/26

    CPC分类号： H01J11/40 ,  H01J9/02 ,  H01J11/12

    摘要： A plasma display panel has a plurality of pairs of display electrodes, dielectric layer, and protective layer disposed on front glass substrate. Protective layer is formed of nano crystal particles, and the average particle diameter of the nano crystal particles is in the range of 10 nm to 100 nm. With this structure, in the plasma display panel, front glass substrate has a sufficient strength and occurrence of panel cracks is reduced.

    摘要翻译： 等离子体显示面板具有多对显示电极，电介质层和设置在前玻璃基板上的保护层。 保护层由纳米结晶粒子形成，纳米结晶粒子的平均粒径在10nm〜100nm的范围内。 利用这种结构，在等离子体显示面板中，前玻璃基板具有足够的强度并且减少了板裂纹的发生。