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31 条记录 (耗时 0.017 秒)

    Alignment method of liquid crystal of ferroelectric liquid crystal device
    12.
    发明申请
    Alignment method of liquid crystal of ferroelectric liquid crystal device 审中-公开
    铁电液晶装置液晶的对准方法

    公开(公告)号：US20060158352A1

    公开(公告)日：2006-07-20

    申请号：US11376103

    申请日：2006-03-16

    申请人： Chang-ju Kim ,  Jong-min Wang

    发明人： Chang-ju Kim ,  Jong-min Wang

    IPC分类号： H03M1/22

    CPC分类号： G02F1/133784 ,  G02F1/141

    摘要： Provided is an alignment method of a liquid crystal of a ferroelectric liquid crystal (FLC) device. An optical axis direction of a liquid crystal molecule is controlled by applying an alternating current (AC) electric field to the liquid crystal in an N*-to-SmC* phase transition temperature area. Since the optical axis direction can be changed with a desired temperature, an optical characteristic of a panel can be optimized.

    摘要翻译： 提供了一种强电介质液晶（FLC）器件的液晶的取向方法。 通过在N * -to-SmC *相变温度区域中向液晶施加交流（AC）电场来控制液晶分子的光轴方向。 由于可以以期望的温度改变光轴方向，所以可以优化面板的光学特性。

    Measuring method and system for determining piston movement within engine
    13.
    发明授权
    Measuring method and system for determining piston movement within engine 有权

    公开(公告)号：US11740159B2

    公开(公告)日：2023-08-29

    申请号：US17621064

    申请日：2020-12-17

    申请人： TJTENG CO., LTD. ,  Chang-Ju Kim

    发明人： Chang-Ju Kim ,  Ju-Kyeong Kim ,  Myung-Rae Cho ,  Sang-Jae Lee

    IPC分类号： G01M15/06

    CPC分类号： G01M15/06

    摘要： A rotary jig for rotation of a crank shaft of a vehicle and a measuring system using the same are disclosed herein. The measuring system includes: a rotary jig for rotating a crank shaft by opening only a bonnet in a vehicle stop state; a probe joined to the position where a spark plug of an engine is separated and having an extension rod located at the center of a piston to check a top dead point and to output signal values when the crank shaft is rotated according to rotation of the rotary jig; a pump for supplying air to a cylinder chamber of the engine through a tube connected to the probe to move the piston; a terminal for outputting the signal value of the probe to a display unit through wireless communication; and a control unit for controlling the signal values.

    Optical lens, optical module having the same, and backlight assembly having the same
    14.
    发明授权
    Optical lens, optical module having the same, and backlight assembly having the same 有权
    光学透镜，具有该光学透镜的光学模块和具有该光学透镜的背光组件

    公开(公告)号：US07649697B2

    公开(公告)日：2010-01-19

    申请号：US12177936

    申请日：2008-07-23

    申请人： Ju-Young Yoon ,  Hye-Eun Park ,  Chang-Ju Kim ,  Hyun-Jin Kim ,  Gi-Cherl Kim ,  Sang-Yu Lee

    发明人： Ju-Young Yoon ,  Hye-Eun Park ,  Chang-Ju Kim ,  Hyun-Jin Kim ,  Gi-Cherl Kim ,  Sang-Yu Lee

    IPC分类号： G02B3/02 ,  F21V5/04

    CPC分类号： G02B3/04

    摘要： An optical module includes a point light source device and an optical lens. The point light source device generates light. The optical lens includes an inner curved surface and an outer curved surface. The inner curved surface has a first roughly ellipsoidal shape having a first major axis and a first minor axis that is substantially perpendicular to the first major axis. The outer curved surface has a second roughly ellipsoidal shape having a second major axis that is substantially perpendicular to the first axis and the second minor axis that is substantially perpendicular to the second major axis. The light generated by the point light source device enters the optical lens through the inner curved surface and exits from the optical lens through the outer curved surface. Therefore, the number of optical modules used in a display device may be reduced to lower manufacturing cost thereof.

    摘要翻译： 光学模块包括点光源装置和光学透镜。 点光源装置产生光。 光学透镜包括内曲面和外曲面。 内弯曲表面具有第一大致椭圆形状，其具有基本上垂直于第一长轴的第一长轴和第一短轴。 外曲面具有第二大致椭圆形状，其具有基本上垂直于第一轴线的第二长轴和基本上垂直于第二长轴的第二短轴。 由点光源装置产生的光通过内弯曲表面进入光学透镜，并通过外弯曲表面从光学透镜射出。 因此，可以减少在显示装置中使用的光学模块的数量，以降低其制造成本。

    MEASURING SYSTEM AND MEASURING METHOD FOR VEHICLE ENGINE
    18.
    发明申请
    MEASURING SYSTEM AND MEASURING METHOD FOR VEHICLE ENGINE 有权

    公开(公告)号：US20220349780A1

    公开(公告)日：2022-11-03

    申请号：US17621064

    申请日：2020-12-17

    申请人： Chang-Ju KIM ,  TJTENG CO., LTD.

    发明人： Chang-Ju KIM ,  Ju-Kyeong KIM ,  Myung-Rae CHO ,  Sang-Jae LEE

    IPC分类号： G01M15/06 ,  G01B21/02

    摘要： The present invention relates to a rotary jig for rotation of a crank shaft of a vehicle and a measuring system using the same. The measuring system includes: a rotary jig (100) for rotating a crank shaft (C) by opening only a bonnet in a vehicle stop state; a probe (700) joined to the position where a spark plug of an engine is separated and having an extension rod located at the center of a piston to check a top dead point and to output signal values when the crank shaft is rotated according to rotation of the rotary jig; a pump (810) for supplying air to a cylinder chamber of the engine through a tube connected to the probe (700) to move the piston; a terminal (900) for outputting the signal value of the probe (700) to a display unit through wireless communication; and a control unit (800) for controlling the signal values.
    The measuring system can rotate the crank shaft after a worker opens only a bonnet and mounts the rotary jig at an end portion of the crank shaft when the crank shaft is rotated, thereby enabling the worker to simply measure an operational state of the engine linked with the crank shaft.

    Ultra-precision machine tool
    19.
    发明授权
    Ultra-precision machine tool 有权
    超精密机床

    公开(公告)号：US07845257B2

    公开(公告)日：2010-12-07

    申请号：US12204507

    申请日：2008-09-04

    申请人： Chang-Ju Kim ,  Terence Padden ,  Jongsoo Kim

    发明人： Chang-Ju Kim ,  Terence Padden ,  Jongsoo Kim

    IPC分类号： B23B7/00 ,  B23Q1/54

    CPC分类号： B23Q1/623 ,  B23Q1/015 ,  Y10T29/5114 ,  Y10T82/2502 ,  Y10T82/2531 ,  Y10T82/2543 ,  Y10T409/304312 ,  Y10T409/305656 ,  Y10T409/307672 ,  Y10T409/309576 ,  Y10T409/309688

    摘要： A five axis motion controlled ultra-precision machine tool is provided in which major portions are composed as a structure completely symmetric about the machining point and errors due to thermal displacement can be minimized. A pair of Y axis guide members (41,41) are secured to the top face of a base (i) at both sides of an X axis slider (3) interposed therebetween for X direction so as to movably guide Y axis sliders (4,4) in horizontal Y direction perpendicular to X axis. Y axis linear motors (42,42) and the Y axis guide members (41,41) are disposed substantially at the center of mass of the Y axis sliders (4,4) respectively, so that the Y axis sliders (4,4) can be driven in Y direction with vibration and errors in alignment minimized.

    摘要翻译： 提供五轴运动控制的超精密机床，其中主要部分被构成为关于加工点完全对称的结构，并且可以最小化由于热位移引起的误差。 一对Y轴引导构件（41,41）在X轴滑块（3）的两侧固定到基座（i）的上表面，用于X方向，以便可移动地引导Y轴滑块（4） ，4）垂直于X轴的水平Y方向。 Y轴线性马达（42,42）和Y轴引导构件（41,41）分别大致设置在Y轴滑块（4,4）的质心上，使Y轴线滑块（4,4 ）可以在Y方向上被驱动，并且对准误差最小化。