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18 条记录 (耗时 0.022 秒)

    Thin film infrared transparent conductor
    11.
    发明授权
    Thin film infrared transparent conductor 有权
    薄膜红外透明导体

    公开(公告)号：US07314673B2

    公开(公告)日：2008-01-01

    申请号：US10889686

    申请日：2004-07-12

    申请人： Jeffrey T. Cheung ,  Bruce K. Winker ,  Dong-Feng Gu ,  Paul H. Kobrin

    发明人： Jeffrey T. Cheung ,  Bruce K. Winker ,  Dong-Feng Gu ,  Paul H. Kobrin

    IPC分类号： B32B9/00

    CPC分类号： H01L31/022466 ,  H01L31/1884 ,  H01L33/42 ,  Y02E10/50

    摘要： A cadmium oxide (CdO) film doped with any of the Group III elements is substantially transparent to radiation between about 0.7 μm and 12 μm. A film made according to the invention having a sheet resistance of

    摘要翻译： 掺杂有III族元素中的任何一种的氧化镉（CdO）膜对于约0.7μm和12μm之间的辐射基本上是透明的。 根据本发明制成的薄膜电阻<600Omega /□的薄膜在整个IR范围内也将具有极低的光吸收。 该膜适合用作透明导电电极，并且可用于诸如用于光束转向的液晶单元，空间光调制器，用于光纤光通信的光开关，可切换和/或可调偏振修改元件的装置，以及顶部透明 SWIR（1.3和1.5 mum）VCSEL的电极。

    Spatial light modulator employing voltage gradient pixels, and associated methods
    12.
    发明授权
    Spatial light modulator employing voltage gradient pixels, and associated methods 有权

    公开(公告)号：US07268849B2

    公开(公告)日：2007-09-11

    申请号：US11237129

    申请日：2005-09-28

    申请人： Dong-Feng Gu ,  Bruce K. Winker

    发明人： Dong-Feng Gu ,  Bruce K. Winker

    IPC分类号： G02F1/1345 ,  G02F1/03

    CPC分类号： G02F1/292 ,  G02F2203/18 ,  G02F2203/24

    摘要： A spatial light modulator has a transmissive window with a transparent conductive film forming a ground plane and a direct drive backplane with a plurality of voltage gradient pixels. Each of the voltage gradient pixels has (a) resistive film, (b) resistive metal conductor frame on a boundary of the resistive film, and (c) conductive metal leads between a substrate of the direct drive backplane and the resistive metal frame. Differential voltages applied to the metal frame via the conductive metal leads generate a selective two-dimensional linear voltage gradient across the resistive film. A layer of liquid crystal material is disposed between the transmissive window and the voltage gradient pixels. Liquid crystal material of each voltage gradient pixel is responsive to an electric field generated by the voltage gradient to two-dimensionally alter phase of a wavefront incident thereon.

    Apparatus for optically coupling a light source with an optical waveguide
    13.
    发明授权
    Apparatus for optically coupling a light source with an optical waveguide 有权
    用于将光源与光波导光学耦合的装置

    公开(公告)号：US07151870B2

    公开(公告)日：2006-12-19

    申请号：US10948856

    申请日：2004-09-23

    申请人： Dong-Feng Gu ,  Donald B. Taber ,  Bruce K. Winker

    发明人： Dong-Feng Gu ,  Donald B. Taber ,  Bruce K. Winker

    IPC分类号： G02B6/27 ,  G02B6/42 ,  G02F1/295

    CPC分类号： G02F1/292 ,  G02B6/32 ,  G02B6/351 ,  G02B6/3556 ,  G02F1/1392

    摘要： An optical fiber coupling, for example, an optical switch, for coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face of the optical waveguide. An adaptive coupler positioned in the optical path is responsive to a beam steering control signal for steering and aligning the focal point relative to the light-receiving end face of the optical waveguide.

    摘要翻译： 用于将光源与光波导的光接收端面耦合的光纤耦合器，例如光开关包括用于将从光源发射的光束聚焦在光接收点上的焦点处的透镜 光波导的端面。 位于光路中的自适应耦合器响应于光束转向控制信号，用于相对于光波导的光接收端面转向和对准焦点。

    Liquid crystal adaptive coupler for steering a light beam relative to a light-receiving end of an optical waveguide
    15.
    发明授权
    Liquid crystal adaptive coupler for steering a light beam relative to a light-receiving end of an optical waveguide 有权
    用于相对于光波导的光接收端转向光束的液晶自适应耦合器

    公开(公告)号：US06832028B2

    公开(公告)日：2004-12-14

    申请号：US10267282

    申请日：2002-10-08

    申请人： Dong-Feng Gu ,  Donald B. Taber ,  Bruce K. Winker

    发明人： Dong-Feng Gu ,  Donald B. Taber ,  Bruce K. Winker

    IPC分类号： G02B626

    CPC分类号： G02F1/292 ,  G02B6/32 ,  G02B6/351 ,  G02B6/3556 ,  G02F1/1392

    摘要： An apparatus for optically coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face of the optical waveguide. An adaptive coupler, positioned in the optical path, is responsive to a beam steering control signal for steering and aligning the focal point relative to the light-receiving end face of the optical waveguide. In one form, the adaptive coupler comprises a pair of transparent substrates having confronting, parallel inner faces, the inner face of one of the pair of substrates carrying a beam intercepting, optically transparent, constant potential electrode and the inner face of the other of the pair of substrates carrying an electrically resistive, beam intercepting, optically transparent film. A pair of spaced apart electrodes in electrical contact with the film apply a linear voltage gradient along the film. An electro-optical phase shifting medium is disposed between the confronting inner faces of the substrates. The application of selected voltages to the electrodes creates a linear voltage gradient along the aforementioned film on the inner face of the one substrate resulting in a linearly varying electric field between that film and the constant potential electrode creating a corresponding linear variation in the refractive index of the liquid crystal medium and a linear wavefront tilt in the intercepting optical beam.

    摘要翻译： 用于将光源与光波导的光接收端面光学耦合的装置包括用于将从光源发射的光束聚焦在光波导的光接收端面上的焦点处的透镜。 位于光路中的自适应耦合器响应于光束转向控制信号，用于相对于光波导的光接收端面转向和对准焦点。 在一种形式中，自适应耦合器包括一对具有相对的平行内表面的透明基板，一对基板中的一个基板的内表面承载光束拦截，光学透明的恒定电位电极，另一个的内表面 一对基板承载电阻，光束截取的光学透明膜。 与膜电接触的一对间隔开的电极沿膜施加线性电压梯度。 电光相移介质设置在基板的相对的内表面之间。 将选择的电压施加到电极在一个衬底的内表面上沿着上述膜产生线性电压梯度，导致该膜和恒电位电极之间线性变化的电场产生相应的线性变化 液晶介质和截取光束中的线性波前倾斜。

    Method and apparatus to reduce dielectric discharge in liquid crystal devices driven with high voltages
    16.
    发明申请
    Method and apparatus to reduce dielectric discharge in liquid crystal devices driven with high voltages 有权
    降低用高电压驱动的液晶装置中的介质放电的方法和装置

    公开(公告)号：US20090147195A1

    公开(公告)日：2009-06-11

    申请号：US11953801

    申请日：2007-12-10

    申请人： Dong-Feng Gu

    发明人： Dong-Feng Gu

    IPC分类号： G02F1/1333 ,  H01L21/02

    CPC分类号： G02F1/1333

    摘要： The present invention relates to a method and apparatus to reduce dielectric discharge in liquid crystal cells driven with high voltage. In one embodiment, the present invention is a liquid crystal cell including a substrate with a surface and a tapered conductive film on top of the surface of the substrate including a first end and a second end. In another embodiment, the present invention is a method for forming a liquid crystal cell including covering a portion of a surface of a substrate with a shadow mask and then depositing conductive film onto the surface of the substrate such that the conductive film is tapered.

    摘要翻译： 本发明涉及一种降低以高电压驱动的液晶单元中的介质放电的方法和装置。 在一个实施例中，本发明是一种液晶单元，其包括具有表面的基板和在基板的表面的顶部上的锥形导电膜，该基板包括第一端和第二端。 在另一个实施例中，本发明是一种用于形成液晶单元的方法，其包括用荫罩覆盖基板表面的一部分，然后将导电膜沉积到基板的表面上，使得导电膜呈锥形。

    Optical fiber coupling having liquid crystal adaptive coupler
    17.
    发明授权
    Optical fiber coupling having liquid crystal adaptive coupler 有权
    具有液晶自适应耦合器的光纤耦合器

    公开(公告)号：US07260286B2

    公开(公告)日：2007-08-21

    申请号：US10948855

    申请日：2004-09-23

    申请人： Dong-Feng Gu ,  Donald B. Taber ,  Bruce K. Winker

    发明人： Dong-Feng Gu ,  Donald B. Taber ,  Bruce K. Winker

    IPC分类号： G02B6/32 ,  G02B6/35 ,  G02F1/295

    CPC分类号： G02F1/292 ,  G02B6/32 ,  G02B6/351 ,  G02B6/3556 ,  G02F1/1392

    摘要： An optical fiber coupling, for example, an optical switch, for coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face of the optical waveguide. An adaptive coupler positioned in the optical path is responsive to a beam steering control signal for steering and aligning the focal point relative to the light-receiving end face of the optical waveguide.

    摘要翻译： 用于将光源与光波导的光接收端面耦合的光纤耦合器，例如光开关包括用于将从光源发射的光束聚焦在光接收点上的焦点处的透镜 光波导的端面。 位于光路中的自适应耦合器响应于光束转向控制信号，用于相对于光波导的光接收端面转向和对准焦点。

    Touch screen using echo-location
    18.
    发明授权
    Touch screen using echo-location 有权
    触摸屏使用回声定位

    公开(公告)号：US07079118B2

    公开(公告)日：2006-07-18

    申请号：US10784627

    申请日：2004-02-23

    申请人： David J. Benard ,  Robert C. Addison ,  Dong-Feng Gu

    发明人： David J. Benard ,  Robert C. Addison ,  Dong-Feng Gu

    IPC分类号： G09G5/00

    CPC分类号： G06F3/0436 ,  H03K2217/96011

    摘要： A plurality of acoustic wave transducers are coupled to a substrate at predetermined spaced apart locations. At least one of the transducers is operative to emit an acoustic wave that propagates along the substrate, with the other transducers operating as receivers of acoustic waves. The receivers are coupled to a control system that is operative to determine a location at which the substrate is perturbed based on time associated with travel of an acoustic wave from a transmitter, to the location of the perturbation, and from the perturbation to each of the respective receivers.

    摘要翻译： 多个声波换能器以预定间隔的位置耦合到基板。 换能器中的至少一个可操作地发射沿着衬底传播的声波，其他换能器作为声波的接收器工作。 接收器被耦合到控制系统，该控制系统可操作以基于与来自发射机的声波的移动相关联的时间到扰动的位置以及从扰动到每一个的扰动来确定衬底受到扰动的位置 各自的接收机。