Patents Examined by K Cyrus Kianni
  • Optical fiber configuration for dissipating stray light
    Patent number: 7760978
    Abstract: An optical transmission fiber is formed to include a relatively low-index, relatively thin outer cladding layer disposed underneath the protective polymer outer coating. Stray light propagating along an inner cladding layer(s) within the fiber will be refracted into the thin outer cladding (by proper selection of refractive index values). The thin dimension of the outer cladding layer allows for the stray light to “leak” into the outer coating in a controlled, gradual manner so as to minimize heating of the coating associated with the presence of stray light. The inventive fiber may also be bent to assist in the movement of stray light into the coating.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: July 20, 2010
    Assignee: DFS Fitel LLC
    Inventors: David John DiGiovanni, Yoshihiro Emori, Michael Fishteyn, Clifford Headley
  • Micro-ring optical detector/modulator
    Patent number: 7751655
    Abstract: A micro-ring configured to selectively detect or modulate optical energy includes at least one annular optical cavity; at least two electrodes disposed about the optical cavity configured to generate an electrical field in the at least one optical cavity; and an optically active layer optically coupled to the at least one optical cavity. A method of manipulating optical energy within a waveguide includes optically coupling at least one annular optical cavity with the waveguide; and selectively controlling an electrical field in the at least one annular optical cavity to modulate optical energy from the waveguide.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: July 6, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David A. Fattal, Charles M. Santori, Raymond G. Beausoleil, Marco Fiorentino, Theodore I. Kamins
  • Optical apparatus
    Patent number: 7751659
    Abstract: An optical chassis includes a mount substrate an optoelectronic device on the mount substrate, a spacer substrate, and a sealer substrate. The mount substrate, the spacer substrate and the sealer substrate are vertically stacked and hermetically sealing the optoelectronic device. An external electrical contact for the optoelectronic device is provided outside the sealing. At least part of the optical chassis may be made on a wafer level. A passive optical element may be provided on the sealer substrate or on another substrate stacked and secured thereto.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: July 6, 2010
    Assignee: Tessera North America, Inc.
    Inventors: Alan D Kathman, James E Morris, John Barnett Hammond, Michael R. Feldman
  • High-resolution autostereoscopic display
    Patent number: 7750981
    Abstract: A high-resolution autostereoscopic display is provided.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: July 6, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sergey Shestak, Dae-sik Kim, Tae-hee Kim
  • Composite polymer fibers
    Patent number: 7738763
    Abstract: A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the scattering fibers can be substantially matched for light incident in a first polarization state on the composite polymer fiber and unmatched for light incident in an orthogonal polarization state. The scattering fibers may be arranged to form a photonic crystal within the composite fiber. The composite fibers may be extruded and may be formed into a yarn, a weave or the like. If the filler material is soluble, it may be washed out of the yarn or weave, and the scattering fibers may then be infiltrated with a resin that is subsequently cured.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: June 15, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew J. Ouderkirk, Olester Benson, Jr., James C. Breister, Robert L. Brott, Yeun-Jong Chou, Patrick R. Fleming, William J. Kopecky, Diane North, Roger J. Stumo, Kristin L. Thunhorst, Bruce B. Wilson
  • Optical semiconductor module
    Patent number: 7738747
    Abstract: An optical semiconductor module including a base having installed on an optical fiber and an optical semiconductor element, and a package which houses the base on a bottom thereof and has a first side wall with an optical section through which the optical fiber is led and a second side wall facing the first side wall, where the base is cut off to form a curved surface with respect to the bottom at a lower corner on a side of the base facing the second side wall of the housing, and a ratio of r/t is from 0.4 to 1.0, where t is a thickness of the base, and r is a curvature radius of the curved surface.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: June 15, 2010
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Jun Miyokawa, Takashi Koseki, Toru Fukushima
  • Dual film light guide for illuminating displays
    Patent number: 7733439
    Abstract: A front light guide panel including a plurality of embedded surface features is provided. The front light panel is configured to deliver uniform illumination from an artificial light source disposed at one side of the font light panel to an array of display elements located behind the front light guide while allowing for the option of illumination from ambient lighting transmitted through the light guide panel. The surface embedded surface relief features create air pockets within the light guide panel. Light incident on the side surface of the light guide propagates though the light guide until it strikes an air/light material guide interface at one on the air pockets. The light is then turned by total internal reflection through a large angle such that it exits an output face disposed in front of the array of display elements.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: June 8, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Jeffrey B. Sampsell, Russell W. Gruhlke, Mark Mienko, Gang Xu, Ion Bita
  • Plasmon router
    Patent number: 7729575
    Abstract: A variety of structures, methods, systems, and configuration scan support plasmons for routing.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: June 1, 2010
    Inventors: Roderick A. Hyde, Edward K. Y. Jung, Nathan P. Myhrvold, John Brian Pendry, Clarence T. Tegreene, Lowell L. Wood, Jr.
  • Method and system for a liquid crystal display
    Patent number: 7724344
    Abstract: A liquid crystal display includes a liquid crystal provided between a first layer and a second layer. The first layer and the second layer may be in a substantially parallel direction to each another. Spacers may be provided in the liquid crystal to keep the first layer and the second layer spaced apart from each other. Electrode layers may include structural elements operable to prevent the spacers from moving through the liquid crystal in the substantially parallel direction. The display may include a first electrode layer and a second electrode layer having one or more gaps defining an electrode structure including electrodes to control the display.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: May 25, 2010
    Assignee: TPO Displays Corp.
    Inventor: Harrie Hermens
  • Optical turnaround system
    Patent number: 7720325
    Abstract: A technique is provided for utilizing an optical fiber in a variety of sensing applications and environments by beneficially routing the optical fiber. A continuous optical fiber is created to provide optical continuity between two ends of the optical fiber. The optical continuity is created with the assistance of an optical turnaround constructed in a simple, dependable form able to control the bend of the optical fiber as it extends through the optical turnaround.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: May 18, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Harini Varadarajan, Scott A. Rubinstein, Rogerio T. Ramos
  • Asymmetric Mach-Zehnder interferometer having a reduced drive voltage coupled to a compact low-loss arrayed waveguide grating
    Patent number: 7715671
    Abstract: The invention relates to an asymmetric Mach Zehnder Interferometer (MZI) having a reduced drive voltage, coupled to a compact low-loss arrayed waveguide grating (AWG) to provide a broader passband with low ripple. The integrated device has a compact stackable design for improved manufacturing yield. Inputs and outputs of the device are disposed in alignment on opposite sides of a silicon chip with the MZI having an opposite curvature to the AWG. To achieve this alignment, waveguide arms of the MZI are crossed without coupling between them before the optical signal is combined and coupled into the AWG.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: May 11, 2010
    Assignee: JDS Uniphase Corporation
    Inventors: Barthelemy Fondeur, David J. Dougherty
  • Lateral ion pumping in liquid crystal displays
    Patent number: 7714947
    Abstract: The present invention relates to the removal of ion (42, 44, 902) contaminations from liquid crystal layers (901) in liquid crystal display devices (900). The ions (42, 44, 902) are removed by means of so called ion pumping, which utilizes the anisotropic viscosity of liquid crystals. The ions (42, 44, 902) are pumped up and down in the liquid crystal layer by means of an alternating electric filed. The alternating electric field simultaneously alters the alignment of directors (41) in the liquid crystal. The viscosity in the liquid crystal is related to the director directions, and the ions (42, 44, 902) are thereby moved in non-closed trajectories (43, 45). The inventive ion pumping can be further improved using an asymmetric or biased alternating electric field.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: May 11, 2010
    Assignee: Chi Mei Optoelectronics Corporation
    Inventors: Alwin Rogier Martijn Verschueren, Kristiaan Neyts, Goran Stojmenovik
  • Liquid crystal display device
    Patent number: 7714951
    Abstract: A liquid crystal display (LCD) device includes: a first substrate opposite a second substrate and coupled to the second substrate by a first seal pattern; a liquid crystal layer interposed between the first and second substrates within the first seal pattern; a second seal pattern sealing an injection hole in the first seal pattern; and a common line disposed at a first surface of the first substrate and having a predetermined pattern that exposes the second seal pattern to a second surface of the first substrate.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: May 11, 2010
    Assignee: LG. Display Co., Ltd.
    Inventor: Jeong-Hun Kim
  • Active matrix substrate, method for fabricating active matrix substrate, display device, liquid crystal display device, and television device
    Patent number: 7714948
    Abstract: An active matrix substrate includes a substrate, a TFT formed on the substrate, a storage capacitor element formed on the substrate, an interlayer insulating film covering the storage capacitor element, and a pixel electrode formed on the interlayer insulating film. The storage capacitor element includes a storage capacitor line, an insulating film formed on the storage capacitor line, and two or more storage capacitor electrodes opposed to the storage capacitor line with the insulating film interposed therebetween. The two or more storage capacitor electrodes are electrically connected via associated contact holes formed in the interlayer insulating film to the pixel electrode and electrically continuous with a drain electrode of the TFT.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: May 11, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshifumi Yagi, Tomoki Noda, Toshihide Tsubata, Masanori Takeuchi, Kenji Enda
  • Fiber optic connector assembly and method for venting gas inside a fiber optic connector sub-assembly
    Patent number: 7708469
    Abstract: A fiber optic connector assembly and method for venting gas inside in a fiber optic connector sub-assembly. The fiber optic connector assembly includes a connector sub-assembly including a ferrule and a ferrule holder having a passage extending therethrough. A stiffener tube having a tube body disposed about a portion of at least one optical fiber supports insertion of the optical fiber into the ferrule holder passage. The stiffener tube contains at least one opening in its tube body configured to vent gas trapped inside the stiffener tube during assembly. In this manner, the trapped gas does not form a gas pocket in the bonding agent, which could compromise bonding among the optical fiber, stiffener tube, and connector sub-assembly.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: May 4, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: Xin Liu, Darrin M. Miller, Joel C. Rosson
  • Display device uniforming light distribution throughout areas and method for manufacturing same
    Patent number: 7711231
    Abstract: Disclosed are an optical display device producing uniform light distribution and a method of fabricating such devices. The optical display device has waveguides arranged in vertical and horizontal directions. The waveguide has a conical shape whose cross-section decreases towards the light-projection side thereof. At least one of the size, height, spacing, and refraction index of the waveguide is designed to be different for each section, depending on an incident angle and/or intensity of light inputted from a light source. Therefore, the intensity of projected light can be made uniform over all sections of the optical device.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: May 4, 2010
    Assignee: Sekonix Co., Ltd.
    Inventors: Gyuhwan Hwang, Youngbin Yu, Hyunsoo Lee
  • Liquid crystal display device with reduced defect rate and improved color reproductivity
    Patent number: 7710520
    Abstract: A liquid crystal display device that reduces the likelihood of liquid crystal misalignment and driving errors is presented. The liquid crystal display device also improves color reproductively. The device includes a first substrate, and second substrate, and a liquid crystal layer placed between the first substrate and the second substrate. The first substrate includes a gate line and a data line that define a pixel region, a thin film transistor provided at an intersection area of the gate line and the data line, an organic film formed on the thin film transistor and having a depressed portion, a reflective film formed on the organic film, a black matrix, a color filter layer formed in the pixel region, and a pixel electrode formed on the color filter layer. The color filter layer has a different thickness in the depressed portion than in the rest of the pixel region.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: May 4, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Soo-guy Rho
  • Polarization beam splitter-polarization rotator structure
    Patent number: 7702188
    Abstract: A polarization beam splitter-polarization rotator-polarization beam combiner optical structure comprising a pair of polarization rotators having a polarization beam splitter associated with the input ends of the two polarization rotators, and a polarization beam combiner associated with output ends of the two polarization rotators, and a method of purifying a light signal comprising TE and TM modes by disassociating the primary TE and TM modes from first order splitter and rotation error components.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: April 20, 2010
    Assignee: Infinera Corporation
    Inventors: Brent E. Little, Wei Chen
  • Back-to-back receptacle
    Patent number: 7699533
    Abstract: A back-to-back receptacle and system for providing selective interconnection between a pair of optic fibres. The system comprises a receptacle comprising a pair of back-to-back receptacle sockets, with at least a first of the sockets configured to one of a plurality of predefined receptacle keying geometries, a first connector plug terminating the first optic fibre, the plug adapted for insertion into the first receptacle socket, the plug configured to one of a plurality of predefined connector keying geometries and a second connector plug terminating the second optic fibre, the plug adapted for insertion into a second of the back-to-back receptacle sockets. At least one of the predefined connector keying geometries matches at least one of the predefined receptacle keying geometries.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: April 20, 2010
    Assignee: Belden CDT (Canada) Inc.
    Inventor: Luc Milette
  • Bidirectional optical link over a single multimode fiber or waveguide
    Patent number: 7693373
    Abstract: A transceiver for use in a bidirectional optical communication link over a multimode channel is provided. The transceiver includes a single transverse mode light source in a transmitter. A waveguide or fiber based bidirectional coupler projects the transmitter mode to the high modes of the multimode channel. A detector coupled to predominantly all the modes of the channel via the waveguide or fiber based bidirectional coupler.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: April 6, 2010
    Assignee: Analog Devices, Inc.
    Inventor: Shrenik Deliwala