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    • 21. 发明授权
    • Three dimensional thermo-electro-mechanical device for controlling light propagation in an optical guide
    • 用于控制光导中的光传播的三维热电机械装置
    • US07079747B1
    • 2006-07-18
    • US11060404
    • 2005-02-18
    • Bertrand GagnonTigran GalstianAmir TorkArmen ZohrabyanDany DumontRouslan BirabassovRichard Peter Glynn Jewell
    • Bertrand GagnonTigran GalstianAmir TorkArmen ZohrabyanDany DumontRouslan BirabassovRichard Peter Glynn Jewell
    • G02B6/00
    • G02F1/065G02B6/02204G02B6/266G02F1/0147G02F2203/48
    • A variable optical attenuator comprises a portion of a waveguide through which optical energy can propagate having a side surface through which optical energy can be extracted; a layer of thermo sensitive material having controllable optical properties, covering the side surface of the portion; a helicoidal heating element wrapped around the waveguide and covering at least the layer. The helicoidal heating element can be used to control the optical properties of the material by inducing a thermal transfer profile on the material using the heat dissipation of the heater through the material; wherein a wave propagation in the waveguide is influenced by the optical properties of the material controlled by the heating element. The heating element can also have a measurable temperature coefficient; a controller for controlling the temperature of the heating element as a function of the temperature coefficient; wherein the temperature of the heating element can be controlled without using an additional temperature probe. And the heating element can also be used to control the curing of the material using the heat dissipation of the heater through the material, thereby providing a mechanical armature for the material and the waveguide; wherein the mechanical armature solidifies the attenuator.
    • 可变光衰减器包括波导的一部分,光能通过该部分可以传播,具有侧表面,通过该侧表面可以提取光能; 具有可控光学性质的热敏材料层,覆盖该部分的侧表面; 围绕波导缠绕的螺旋形加热元件并且至少覆盖该层。 螺旋加热元件可用于通过使用加热器通过材料的散热在材料上引起热转印轮廓来控制材料的光学性质; 其中波导中的波传播受到由加热元件控制的材料的光学特性的影响。 加热元件也可以具有可测量的温度系数; 控制器,用于根据温度系数控制加热元件的温度; 其中可以在不使用附加温度探针的情况下控制加热元件的温度。 并且加热元件也可用于通过加热器通过材料的散热来控制材料的固化,从而为材料和波导提供机械衔铁; 其中所述机械衔铁固化所述衰减器。
    • 24. 发明授权
    • Method and device for coupling a light emitting source to an optical waveguide
    • 用于将发光源耦合到光波导的方法和装置
    • US07114860B2
    • 2006-10-03
    • US10736756
    • 2003-12-17
    • Armen ZohrabyanTigran GalstianDany DumontAmir Tork
    • Armen ZohrabyanTigran GalstianDany DumontAmir Tork
    • G02B6/36
    • G02B6/13G02B6/10G02B6/4201
    • In a method for coupling an optical waveguide to a light emitting diode (LED) within a resin case, an input end of the optical waveguide is mounted proximal to a surface formed in the resin case parallel to a light-emitting face of the LED. The optical waveguide and the resin case can be bonded by a light or thermally curable resin that is applied and subsequently solidified. The light or thermally curable resin may be a photopolymer sensitive to light emerging from the waveguide. An automated coupling system is provided to optimize the coupling conditions using the in-coupled light efficiency feedback and controller. Finally a method is described allowing the coupling efficiency to be controlled using external excitation forces or light intensity variations, using electro-optic, magneto-optic, thermo-optic, light polarization sensitive or nonlinear properties of the filler material used between the resin case and waveguide.
    • 在将光波导耦合到树脂壳体内的发光二极管(LED)的方法中,光波导的输入端安装在与LED的发光面平行的形成在树脂壳体中的表面的近侧。 光波导和树脂壳体可以通过施加并随后固化的光或热固化树脂粘合。 光或热固化树脂可以是对从波导出射的光敏感的光聚合物。 提供了一种自动耦合系统,以使用耦合光效反馈和控制器来优化耦合条件。 最后,描述了一种方法,其允许使用外部激发力或光强度变化来控制耦合效率,其使用在树脂壳体和树脂壳体之间使用的填充材料的电光学,磁光学,热光学,光偏振敏感或非线性特性 波导。
    • 27. 发明授权
    • Composite liquid crystalline mixture
    • 复合液晶混合物
    • US07033523B2
    • 2006-04-25
    • US10713785
    • 2003-11-14
    • Amir TorkDany DumontTigran GalstianArmen ZohrabyanRouslan Birabassov
    • Amir TorkDany DumontTigran GalstianArmen ZohrabyanRouslan Birabassov
    • C09K19/52C09K19/54
    • C09K19/52C09K19/54C09K19/60Y10T428/10Y10T428/1036
    • Described is a composite liquid crystalline mixture having a low refractive index and a chemical reactive power that makes it capable of minimizing an anchoring energy when in contact with silica. This mixture comprises: (a) low ordinary refractive index nematic liquid crystal of a single type or a mixture of low ordinary refractive index nematic liquid crystals of different types; (b) at least one reagent compound capable of reducing the anchoring energy via a chemical shielding process and from which originates a decoupling effect with a glass interface leading to the reduction of the anchoring energy and appropriately orienting a liquid crystal director at this interface; and (c) at least one low refractive index additive having a relatively low viscosity. The above mixture is useful in waveguide tuning applications.
    • 描述了具有低折射率和化学无功功率的复合液晶混合物,使得其能够使与二氧化硅接触时的锚定能最小化。 该混合物包括:(a)单一类型的低折射率向列型液晶或不同类型的低折射率向列型液晶的混合物; (b)至少一种试剂化合物,其能够通过化学屏蔽过程降低锚定能量,并且由玻璃界面引起解耦效应,导致锚定能量的降低并且在该界面处适当地定向液晶指向矢; 和(c)至少一种具有较低粘度的低折射率添加剂。 上述混合物在波导调谐应用中是有用的。