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8 条记录 (耗时 0.018 秒)

    Total internal reflection optical switch utilizing a moving droplet
    1.
    发明授权
    Total internal reflection optical switch utilizing a moving droplet 失效

    公开(公告)号：US06647165B2

    公开(公告)日：2003-11-11

    申请号：US09871486

    申请日：2001-05-31

    申请人： Gongjian Hu ,  Peter Robrish

    发明人： Gongjian Hu ,  Peter Robrish

    IPC分类号： G02B626

    CPC分类号： G02B6/3538 ,  G02B6/3544 ,  G02B6/357 ,  G02B6/3576 ,  G02B6/3596 ,  G02B26/004

    摘要： An optical switch constructed from first and second waveguides. The first and second waveguides have ends disposed across a gap such that light traversing the first waveguide enters the second waveguide when the gap is filled with a liquid having a first index of refraction, whereas light traversing the first waveguide is reflected by the gap when the gap is filled with a material having a second index of refraction that is substantially different from the first index of refraction. The gap is part of a trench that contains a liquid droplet made from a droplet material having the first index of refraction. The droplet is located in the trench and is movable between the first and second positions in the trench, the droplet filling the gap in the first position. The gap is filled with a material having the second index of refraction when the droplet is in the second position. The droplet may be moved using an electric field generated by a plurality of electrodes arranged such that an electrical potential applied between a first pair of the electrodes creates an electric field in a region of the trench containing the first position. The droplet can also be moved by differentially heating two edges of the droplet so as to create a net force on the droplet in a direction parallel to the direction of the trench. The heating can be accomplished by illuminating one edge of the droplet with light of a wavelength that is absorbed by the droplet material.

    Controllable optical attenuator
    2.
    发明授权
    Controllable optical attenuator 失效
    可控光衰减器

    公开(公告)号：US06400885B1

    公开(公告)日：2002-06-04

    申请号：US09641541

    申请日：2000-08-18

    申请人： Gongjian Hu ,  Peter Robrish

    发明人： Gongjian Hu ,  Peter Robrish

    IPC分类号： G02B600

    CPC分类号： G02B6/3538 ,  B41J2002/14395 ,  G02B6/266 ,  G02B6/357 ,  G02B6/3582 ,  G02B6/3594 ,  G02B6/3596 ,  G02B26/004

    摘要： A controllable optical attenuator comprising an optical waveguide which extends longitudinally along the optical attenuator. The optical waveguide has an exposed surface and a core that is positioned directly adjacent the exposed surface. The attenuator further comprises at least one elongated chamber which is formed transversely to the longitudinal extent of the optical waveguide and a liquid droplet which is disposed within the elongated chamber, the droplet being movable along the chamber from a position lateral of the optical waveguide exposed surface to a position in which contact is made between the liquid droplet and the optical waveguide exposed surface. When the liquid droplet is positioned so as to contact the exposed surface of the optical waveguide, a portion of the optical signal transmitted along the waveguide core is absorbed by the droplet so as to attenuate the transmitted signal.

    摘要翻译： 一种可控光衰减器，包括沿光衰减器纵向延伸的光波导。 光波导具有暴露的表面和直接邻近暴露表面定位的芯。 所述衰减器还包括至少一个细长室，其横向于所述光波导的纵向延伸部分形成，并且所述液滴设置在所述细长室内，所述液滴可沿所述腔室从所述光波导暴露表面的侧面位置移动 到达液滴和光波导暴露表面之间接触的位置。 当液滴定位成与光波导的暴露表面接触时，沿着波导芯传输的光信号的一部分被液滴吸收，以便衰减所传输的信号。

    Polarization control device
    3.
    发明授权
    Polarization control device 失效
    极化控制装置

    公开(公告)号：US06686984B1

    公开(公告)日：2004-02-03

    申请号：US09502362

    申请日：2000-02-29

    申请人： Charles Hoke ,  Gongjian Hu ,  Peter Robrish ,  Andreas Weber

    发明人： Charles Hoke ,  Gongjian Hu ,  Peter Robrish ,  Andreas Weber

    IPC分类号： G02F11337

    CPC分类号： G02F1/1326 ,  G02F1/0136 ,  G02F1/134363 ,  G02F1/1393

    摘要： A polarization control device, comprising: a liquid crystal device containing a liquid crystal material with an optical anisostropy with substantially homeotropically aligned molecules when in a neutral electrical field state; a plurality of electrodes for applying an electrical field to change an orientation of the molecules of the liquid crystal material from their alignment in the neutral electrical filed state; a circuit for applying a voltage to the electrodes; and an optical system for directing light through the liquid crystal material.

    摘要翻译： 一种偏振控制装置，包括：液晶装置，当处于中性电场状态时，所述液晶装置含有具有大致垂直排列的分子的具有光学不对称的液晶材料; 多个电极，用于施加电场以改变液晶材料的分子在中性电场状态下的取向; 用于向电极施加电压的电路; 以及用于引导光通过液晶材料的光学系统。

    Optical apparatus and method for selectively transmitting optical signals
    5.
    发明授权
    Optical apparatus and method for selectively transmitting optical signals 失效
    用于选择性地发送光信号的光学装置和方法

    公开(公告)号：US06839169B2

    公开(公告)日：2005-01-04

    申请号：US10172840

    申请日：2002-06-17

    申请人： Gongjian Hu

    发明人： Gongjian Hu

    IPC分类号： G02F1/09 ,  G02F1/139 ,  G02F1/31 ,  G02B27/28 ,  G02F1/13

    CPC分类号： G02F1/31 ,  G02F1/093 ,  G02F1/1395 ,  Y10S359/90

    摘要： An optical apparatus and method for selectively transmitting optical signals utilizes an optical component having a controllable optical state to selectively manipulate the optical signals so that transmission of the optical signals through the optical apparatus is controlled. The optical apparatus is configured so that optical signals from a first port of the optical apparatus are transmitted to a second port of the optical apparatus regardless of the optical state of the optical component. The optical apparatus is further configured so that optical signals from the second port are not transmitted to the first port unless the optical component is switched to an active optical state.

    摘要翻译： 用于选择性地发送光信号的光学装置和方法利用具有可控光学状态的光学部件来选择性地操纵光信号，从而控制光信号通过光学装置的传输。 光学装置被配置为使得来自光学装置的第一端口的光信号被发送到光学装置的第二端口，而与光学部件的光学状态无关。 光学装置还被配置为使得来自第二端口的光信号不被传送到第一端口，除非光学部件被切换到有源光学状态。

    Production of filaments via phase separation and polymerization
    8.
    发明授权
    Production of filaments via phase separation and polymerization 失效
    通过相分离和聚合生产长丝

    公开(公告)号：US06656384B1

    公开(公告)日：2003-12-02

    申请号：US09640625

    申请日：2000-08-17

    申请人： Peter Palffy-Muhoray ,  Liang-Chy Chien ,  Gongjian Hu

    发明人： Peter Palffy-Muhoray ,  Liang-Chy Chien ,  Gongjian Hu

    IPC分类号： C09K1952

    CPC分类号： C09K19/3001 ,  C09K19/12 ,  C09K19/3847

    摘要： A polymerizable liquid crystalline monomer is described comprising a polymerizable first terminal group, a central portion, and a second terminal group, wherein the monomer is capable of filament formation. Filaments can form as a result of an isotropic to smectic phase transition and can subsequently be polymerized by photoinitiation, for example.

    摘要翻译： 描述了包含可聚合的第一末端基团，中心部分和第二末端基团的可聚合液晶单体，其中所述单体能够形成丝。 作为各向同性至近晶相变的结果可以形成丝，并且可以随后通过光引发聚合。