With Particular Electrode Structure Or Arrangement, Or Medium Mounting Structure Or Arrangement Patents (Class 359/254)
  • Patent number: 10410402
    Abstract: A visual display unit creating a three-dimensional volumetric space. The display includes a first screen in a first focal plane, wherein the first screen displays a first image. The display includes a second screen in a second focal plane distinct from the first focal plane, wherein the second screen displays a second image, and wherein the second screen at least partially overlaps the first screen. The display includes a physical object located between the first screen and said second screen, wherein at least one of the first and second images is displayed in response to a placement of the physical object.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: September 10, 2019
    Assignee: PURE DEPTH LIMITED
    Inventors: Gareth Paul Bell, Gabriel Damon Engel
  • Patent number: 10371349
    Abstract: An optical device includes one or more light sources and a light-guiding plate that guides light emitted from the light sources in a plane parallel to an emission surface that emits light. The light-guiding plate has light convergence portions that receive guided light and each have optical surfaces that cause light to be emitted from the emission surface in directions in which the light substantially converges at or scatters from one convergence point. The convergence points for the light convergence portions are different from each other. An image is formed on an emission surface side by a collection of the convergence points. First light convergence portions positioned differently from each other along a light-guiding direction of the light-guiding plate cause light to be emitted from the emission surface in different directions in which the light substantially converges at or scatters from the same first convergence point among the convergence points.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: August 6, 2019
    Assignee: OMRON Corporation
    Inventors: Norikazu Kitamura, Masayuki Shinohara, Yasuhiro Tanoue, Yuji Hirose, Mitsuru Okuda, Kazuyuki Okada
  • Patent number: 10353238
    Abstract: The present invention provides a liquid crystal lens and a 3D display device. By utilizing the metal wire grid (20) to realize the functions of electrode and polarizer at the same time, and the polarizer filters the o light to solve the display degradation issue due to the o light leakage, and corresponding high quality 3D image display is realized. By combining function of the polarizer and the electrode in the metal wire grid (20), the additional polarizer adhesion is no longer required, which can effectively decrease the thickness of the liquid crystal lens. The present invention further provides a 3D display device, which can decrease the thickness of the 3D display device to realize the high quality 3D image display.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: July 16, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Guowei Zha
  • Patent number: 10193025
    Abstract: An inorganic light-emitting diode (iLED) pixel structure includes a transparent pixel substrate having an LED surface, an emission surface opposite the LED surface, and one or more sides other than the LED surface and the emission surface that are not parallel to the LED surface or the emission surface. One or more iLEDs are mounted on the pixel substrate and each iLED has an emission side adjacent to the LED surface of the pixel substrate to emit light into the pixel substrate and out of the emission surface. A reflector is disposed on at least a portion of the one or more sides.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: January 29, 2019
    Assignee: X-Celeprint Limited
    Inventors: Christopher Bower, Ronald S. Cok
  • Patent number: 10175549
    Abstract: This disclosure provides connectors for smart windows. A smart window may incorporate an optically switchable pane. In one aspect, a window unit includes an insulated glass unit including an optically switchable pane. A wire assembly may be attached to the edge of the insulated glass unit and may include wires in electrical communication with electrodes of the optically switchable pane. A floating connector may be attached to a distal end of the wire assembly. The floating connector may include a flange and a nose, with two holes in the flange for affixing the floating connector to a first frame. The nose may include a terminal face that present two exposed contacts of opposite polarity. Pre-wired spacers improve fabrication efficiency and seal integrity of insulated glass units. Electrical connection systems include those embedded in the secondary seal of the insulated glass unit.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: January 8, 2019
    Assignee: View, Inc.
    Inventors: Stephen C. Brown, Dhairya Shrivastava, David Walter Groechel, Anshu A. Pradhan, Gordon Jack, Disha Mehtani, Robert T. Rozbicki
  • Patent number: 10128940
    Abstract: An optical transmission method wavelength-multiplexing and transmitting multiple channels including data. The data are composed of data areas independent between the channels and data areas non-independent between the channels. Data patterns of the data areas non-independent between the channels are variable. The data patterns of the data areas non-independent between the channels are set so that in time periods of the non-independent data areas on an optical transmission section, a time period during which polarization states of the multiple channels are correlated in the optical transmission section has a length such that an error rate is less than or equal to a threshold value, the error rate being determined from a temporal distribution of bit errors obtained from a result of error decision after demodulation in an optical receiver.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: November 13, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroki Goto, Tsuyoshi Yoshida, Kiyoshi Onohara, Takashi Sugihara, Kazuo Kubo, Tatsuya Kobayashi, Keisuke Matsuda, Masashi Binkai
  • Patent number: 10088733
    Abstract: A segmented traveling wave Mach Zehnder optical modulator is described. The segmented traveling wave Mach Zehnder optical modulator may comprise two or more radio frequency (RF) segments, and each RF segment may be configured to support a modulating RF signal. The modulating RF signals may be configured to modulate an optical signal propagating along an optical path of the segmented traveling wave Mach Zehnder optical modulator. The RF modulating signal in the second RF segment may be generated by amplifying the modulating RF signal of the first RF segment, using an RF amplifier. The RF amplifier may be configured to amplify a band-pass spectral portion of the modulating RF signal.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: October 2, 2018
    Assignee: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Ricardo Aroca, Long Chen
  • Patent number: 10040338
    Abstract: Disclosed is an apparatus for controlling tint of a display panel provided on a vehicle window to adjust light transmittance depending on ambient light conditions, thereby overcoming difficulties in securing a clear view, such as glare caused by sunlight or high-beam headlamps of a vehicle in the opposite direction lane during driving. The apparatus includes: a display panel film attached to a window glass of the vehicle, and having an adjustable tint; an operation unit setting the tint of the display panel film; a detection sensor unit quantifying a change in an external environment into data; and a control unit adjusting the tint of the display panel film according to a preset program by using the data received from the detection sensor unit.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: August 7, 2018
    Assignee: Myongji University Industry and Academia Cooperation Foundation
    Inventors: Min Jae Kim, Bong Suk Choi, Seung Jae Oh, Tae Yong Cho, Hyeon Min Choi, So Yeon Park, Byeong Jin Eom, Kyung Min Lee
  • Patent number: 9915832
    Abstract: Methods and systems for controlling the phase of electromagnetic waves are disclosed. A device can consist of a guided resonance grating layer, a spacer, and a reflector. A plurality of devices, arranged in a grid pattern, can control the phase of reflected electromagnetic phase, through refractive index control. Carrier injection, temperature control, and optical beams can be applied to control the refractive index.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 13, 2018
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Yu Horie, Amir Arbabi, Andrei Faraon
  • Patent number: 9753226
    Abstract: A structure for coupling an optical signal between an integrated circuit photonic structure and an external optical fiber is disclosed as in a method of formation. The coupling structure is sloped relative to a horizontal surface of the photonic structure such that light entering or leaving the photonic structure is substantially normal to its upper surface.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 5, 2017
    Assignee: Micron Technology, Inc.
    Inventor: Harel Frish
  • Patent number: 9726982
    Abstract: A maskless exposure device including a light source configured to emit an exposure beam, a light modulation element configured to modulate the exposure beam according to an exposure pattern, a projection optical system configured to transfer a modulated exposure beam to a substrate as a beam spot array, a beam measurement part configured to measure a beam data of the beam spot array, and a compensating mask generator configured to generate a compensating mask by utilizing a measured data of the exposure beam for compensating cumulative illumination, wherein the compensating mask generator is configured to turn off left and right beams of a first selected spot beam selected by the beam data, and then to turn off a second selected spot beam.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: August 8, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hi-Kuk Lee, Jae-Young Jang, Jae-Hyuk Chang, Sang-Don Jang
  • Patent number: 9709871
    Abstract: An optical module includes an optical modulator that modulates light by using an electrical signal input from a first surface to a plurality of electrodes; and a flexible substrate that has a plurality of wiring patterns electrically connected to the plurality of electrodes, respectively, on the first surface. The optical modulator has a bulging part that bulges out from the first surface opposed to the flexible substrate toward the flexible substrate and is in contact with the flexible substrate.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: July 18, 2017
    Assignee: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventor: Masaki Sugiyama
  • Patent number: 9679645
    Abstract: A nonvolatile memory storage device includes a ferroelectric (FE) material coupled with a piezoresistive (PR) material through an inherent piezoelectric response of the FE material, wherein an electrical resistance of the PR material is dependent on a compressive stress applied thereto, the compressive stress caused by a remanent strain of the FE material resulting from a polarization of the FE material, such that a polarized state of the FE material results in a first resistance value of the PR material, and a depolarized state of the FE material results in a second resistance value of the PR material.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: June 13, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Bruce G. Elmegreen, Glenn J. Martyna, Dennis M. Newns, Alejandro G. Schrott
  • Patent number: 9632307
    Abstract: This disclosure provides systems, methods and apparatus for providing compact shutter assemblies. Shutter assemblies can be formed in a more compact fashion, allowing for higher pixel-per-inch displays, by incorporating shutters that during actuation pass over or under portions of the actuators that control those shutters.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: April 25, 2017
    Assignee: SNAPTRACK, INC.
    Inventors: Timothy Brosnihan, Javier Villarreal, Mark B. Andersson
  • Patent number: 9601902
    Abstract: A method of optical signal amplification. Incident photons are received at a photodetector including a doped semiconductor biased by a power source. The photons generate a change in a reflective property, refractive index, or electrical conductivity of the doped semiconductor. For the change in reflective property or refractive index, a first optical signal is reflected off the photodetector to provide a reflected beam, or the photodetector includes a reverse biased semiconductor junction including the doped semiconductor within a laser resonator including a laser medium, wherein a second optical signal is emitted. For the change in electrical conductivity the photodetector includes a reversed biased semiconductor junction that is within an electrical circuit along with an electrically driven light emitting device, where a drive current provided to the light emitting device increases as the electrical conductivity of the photodetector decreases, and the light emitting device emits a third optical signal.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: March 21, 2017
    Assignees: University of Central Florida Research Foundation, Inc., United States of America
    Inventors: Aravinda Kar, Tariq Manzur
  • Patent number: 9575021
    Abstract: A method of forming extremely small pores in a substrate may be used to produce, for example, an apparatus for the study of biological molecules, by providing a small pore in a piezoelectric substrate having electrodes, the latter that may be energized to change the pore dimensions.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: February 21, 2017
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Robert H. Blick, Minrui Yu
  • Patent number: 9568799
    Abstract: A variable transmittance optical filter comprising: a first layer comprising a first substantially transparent substrate with a substantially co-planar (SC) electrode system disposed thereon, the SC electrode system made of transparent electrically conductive material and comprising at least one pair of electrically separate electrodes arranged in a substantially co-planar manner on the first substantially transparent substrate, each pair of electrically separate electrodes comprising a first electrode and a second electrode, a second layer proximate to the first layer and comprising a transition material that darkens in response to a non-electrical stimulus and lightens in response to application of an electric voltage; and an electrical connection system for electrically connecting the SC electrode system to a source of electric voltage.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: February 14, 2017
    Assignee: SWITCH MATERIALS, INC.
    Inventors: Duhane Lam, Neil Robin Branda
  • Patent number: 9366936
    Abstract: An electrophoresis display apparatus of this disclosure is provided with a pair of substrates, an electrophoresis layer including electrophoresis particles and a dispersion medium in which the electrophoresis particles are dispersed, a barrier wall which is arranged between the pair of substrates and divides a cell in which the electrophoresis layer is arranged, and a sealing member which seals the electrophoresis layer arranged in the cell, in which the sealing member includes a first layer and a second layer laminated on the first layer, and in which the electric resistance of the second layer is lower than that of the first layer.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: June 14, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Kozo Shitagami, Harunobu Komatsu
  • Patent number: 9256113
    Abstract: A plasmonic modulator and an optical apparatus including the same are provided. The plasmonic modulator includes a first metal layer, and a second metal layer facing the first metal layer. The plasmonic modulator further includes a refractive index varying layer disposed between the first and second metal layers and including a varying refractive index, and an insulating nitride layer disposed between the refractive index varying layer and the first metal layer.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: February 9, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-hoon Han, Wan-joo Maeng, Sang-yoon Lee
  • Patent number: 9251884
    Abstract: A nonvolatile memory storage device includes a ferroelectric (FE) material coupled with a piezoresistive (PR) material through an inherent piezoelectric response of the FE material, wherein an electrical resistance of the PR material is dependent on a compressive stress applied thereto, the compressive stress caused by a remanent strain of the FE material resulting from a polarization of the FE material, such that a polarized state of the FE material results in a first resistance value of the PR material, and a depolarized state of the FE material results in a second resistance value of the PR material.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: February 2, 2016
    Assignee: International Business Machines Corporation
    Inventors: Bruce G. Elmegreen, Glenn J. Martyna, Dennis M. Newns, Alejandro G. Schrott
  • Patent number: 9140900
    Abstract: A display for imaging includes an aperture layer and a set of light modulators. The aperture layer includes a light absorbing layer disposed over a light reflecting layer, each layer having a set of apertures defined therein. The light absorbing layer includes light absorbing material suspended in a photosensitive resin. The set of light modulators are for modulating light passing through the apertures defined in the aperture layer.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: September 22, 2015
    Assignee: Pixtronix, Inc.
    Inventors: Eugene E. Fike, III, John J. Fijol, Timothy J. Brosnihan, Jignesh Gandhi
  • Patent number: 9019587
    Abstract: A display device provided with an MEMS light valve, comprising: a substrate, a fixed grating located on the substrate, an MEMS light valve for controlling the opening and closing of the fixed grating; a guide is disposed on the substrate. The MEMS light valve comprises: a movable grating, a movable electrode and fixed electrodes; the moveable grating is located in the guide and is electrically connected to the guide when contacting the guide; one end of the movable electrode is fixedly connected with the movable grating, and the other end is suspended; and the fixed electrodes and the movable electrode form a capacitor. When a potential difference forms between the fixed electrodes and the movable electrode, the movable electrode drives the movable grating to move in the guide, thereby opening and closing the fixed grating. Therefore, the MEMS light valve sensitivity can be enhanced and reliability is improved.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: April 28, 2015
    Assignee: Lexvu Opto Microelectronics Technology (Shanghai) Ltd
    Inventors: Jianhong Mao, Deming Tang
  • Patent number: 8908257
    Abstract: Disclosed is an electrophoretic display device and manufacturing method thereof, which prevent water from penetrating into an electrophoretic film. The electrophoretic display device comprises an electrophoretic display panel comprising a substrate with a thin film transistor formed thereon, and an electrophoretic film coupled to the substrate; a protective sheet coupled to the electrophoretic film; a circuit film coupled to the substrate to be disposed at an outer side of the electrophoretic film; a first sealant formed on the substrate, for sealing a gap between the electrophoretic film and the protective sheet and a gap between the electrophoretic film and the substrate; and a second sealant sealing a gap between the substrate and the circuit film.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: December 9, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: SangMoo Song, DaeSung Jung, YoungJoon Shin
  • Patent number: 8908254
    Abstract: Optical apparatus for a display device. The optical apparatus comprises a cavity, and a first fluid (14) and a second fluid (16), held within the cavity, which are immiscible with each other. The first and second fluids are separated from each other by a meniscus (28) having a peripheral edge (30). The optical apparatus further comprises a fluid motion control system arranged to control movement of the first and second fluids within the cavity using electrostatic forces, and a first surface (26) and a second surface (21). The first surface has a different wettability for the first fluid than for the second surface. The first and second surfaces are arranged in the cavity to determine, upon activation of the fluid motion control system, a motion of the fluids within the cavity which has a preferential initiation at a first part (32) of the peripheral edge.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: December 9, 2014
    Assignee: Amazon Technologies, Inc.
    Inventors: Bokke Johannes Feenstra, Roy Van Dijk, Robert A. Hayes
  • Patent number: 8908251
    Abstract: A tunable metamaterial has a two dimensional array of resonant annular ring elements; and a plurality of voltage controllable electrical tuning elements disposed in or adjacent openings in each of said ring elements, each of said voltage controllable electrical tuning element ohmically contacting portions of only one of said ring elements. The voltage controllable electrical tuning elements may comprise highly doped semiconductor tunnel diodes, or the charge accumulation layer at the semiconductor/insulator interface of a metal-insulator-semiconductor structure, or nanoelectromechanical (NEMs) capacitors. The tunable metamaterial may be used, for example, in an optical beam steering device using the aforementioned tunable optical metamaterial in which a free-space optical beam is coupled into a receiving portion of a plane of the optical metamaterial and is steered out of a transmitter portion of the plane of the optical metamaterial in controllable azimuthal and elevational directions.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: December 9, 2014
    Assignee: HRL Laboratories, LLC
    Inventors: Keyvan Sayyah, James H. Schaffner, Pamela R. Patterson
  • Patent number: 8854596
    Abstract: An active optical device includes a substrate; a plurality of refractive index variable regions formed on the substrate; and a voltage applier which applies an electric field to the plurality of refractive index variable regions.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: October 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-il Kim, Jun-hee Choi
  • Patent number: 8830561
    Abstract: The present invention is directed to an electrophoretic display comprising: (a) microcups comprising partition walls and top-openings; (b) an organic-based electrophoretic fluid filled in the microcups, wherein said fluid comprises charged pigment particles dispersed in a solvent; and (c) a top-sealing layer formed from a sealing composition to enclose the electrophoretic fluid within the microcups. The sealing composition comprises: (i) a water soluble polymer, (ii) a water-based suspension, a water-based dispersion, a water-based emulsion, or a water-based latex, each comprising a polymer; and (iii) water.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: September 9, 2014
    Assignee: E Ink California, LLC
    Inventors: HongMei Zang, Hui Chen
  • Patent number: 8824036
    Abstract: A thermally stabilized, high speed, micrometer-scale silicon electro-optic modulator is provided. Methods for maintaining desired temperatures in electro-optic modulators are also provided. The methods can be used to maintain high quality modulation in the presence of thermal variations from the surroundings. Direct current injection into the thermally stabilized electro-optic modulator is used to maintain the modulation performance of the modulator. The direct injected current changes the local temperature of the thermally stabilized electro-optic modulator to maintain its operation over a wide temperature range.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: September 2, 2014
    Assignee: Cornell University
    Inventors: Sasikanth Manipatruni, Rajeev Dokania, Alyssa B. Apsel, Michal Lipson
  • Patent number: 8804226
    Abstract: An optical modulator unit, an optical modulator, and a method of fabricating are provided. The optical modulator unit includes a first contact layer transmitting infrared rays, a lower reflection layer disposed on the first contact layer, an active layer, including a multiple quantum well, disposed on the lower reflection layer, and an upper reflection layer disposed on the active layer. The optical modulator includes a plurality of optical modulator units sharing the first contact layer. The method includes sequentially stacking a first contact layer, a lower reflection layer, an active layer, an upper reflection layer, and a second contact layer on a substrate; etching the second contact layer, the upper reflection layer, the active layer, and the lower reflection layer, exposing a surface of the first contact layer; forming a first electrode on the first contact layer; and forming a second electrode on the second contact layer.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: August 12, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-hun Lee, Chang-young Park, Jo-ho Lee
  • Patent number: 8792752
    Abstract: Provided is an optical waveguide element module which suppresses reflection of a modulation signal and attenuation of a modulation signal, even when an impedance of a modulation electrode of an optical waveguide element and an impedance of a transmission line for inputting the modulation signal from the external of the optical waveguide element are different from each other. The optical waveguide element module is provided with an optical waveguide element, which has a substrate (1) composed of a material having electro-optical effects, an optical waveguide (2) formed on the substrate, and a modulation electrode (3) which modules optical waves propagating in the optical waveguide; a connector (8), wherein an external signal line which inputs the modulation signal to the modulation electrode is connected to the modulation electrode; and a relay line which connects the connector and the modulation electrode and is formed on a relay substrate (7).
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: July 29, 2014
    Assignee: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Ryo Shimizu, Toru Sugamata
  • Patent number: 8784675
    Abstract: The ferroelectric substrate 11 of ferroelectric crystals, while being supported by the support plate 14 which is thicker than the ferroelectric substrate 11, is integrated with the support plate 14 by letting the junction 13 mediate between one major surface S1A of the ferroelectric substrate 11 and one major surface S1B of the support plate 14, and therefore, it is possible through the flat surface polishing to perform thinning of the ferroelectric substrate 11, namely, the ferroelectric crystals, and as a result, it is possible to obtain the thin periodically poled structure. By the voltage application method, the domain inverted region is formed in the ferroelectric substrate 11 which is made thin.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: July 22, 2014
    Assignee: Dainippon Screen Mfg. Co. Ltd.
    Inventors: Masahide Okazaki, Toshiaki Suhara
  • Patent number: 8776514
    Abstract: A microactuator for displacing a platform vertically with respect to a substrate includes a first rigid frame, a first flexible bimorph beam connecting the first frame to the substrate, a second rigid frame, a second flexible bimorph beam connecting the second frame to the first frame, and a third flexible bimorph beam connecting a platform to the second frame. Activation of the first, second, and third flexible bimorph beams allows vertical displacement of the platform with respect to the substrate, with negligible lateral shift. A microactuator assembly includes a substrate, a plurality of first rigid frames, a plurality of first flexible bimorph beams, a plurality of second rigid frames, a plurality of second flexible bimorph beams, a platform, and a plurality of third flexible bimorph beams. Activation of the first, second, and third bimorph beams allows vertical displacement of the platform with respect to the substrate, with negligible lateral shift.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: July 15, 2014
    Inventors: Lei Wu, Huikai Xie
  • Patent number: 8773749
    Abstract: A variable focusing lens is provided that can change the focal length at a high speed. The variable focusing lens includes: a single crystal electrooptic material having inversion symmetry; a first anode formed on a first surface of the electrooptic material; a second cathode provided to have an interval to the first anode; and a first cathode and a second anode that are formed on a second surface opposed to the first surface and that are formed at positions opposed to the first anode and the second cathode. An optical axis is set so that, when light enters through a third face orthogonal to the first surface, light exists through a fourth surface opposed to the third face. A voltage applied between the first and the second pair of electrodes is changed to thereby change the focal point of light emitted from the fourth surface of the electrooptic material.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: July 8, 2014
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Tadayuki Imai, Masahiro Sasaura, Jun Miyazu, Shogo Yagi, Seiji Toyoda
  • Patent number: 8761549
    Abstract: A component, device and improved electro-optical modulation system for increasing compactness, favoring the adaptation of optical and electrical waves, and a method of fabrication. Such a component exhibits a waveguide architecture devised so that the length of the path followed by the luminous flux exhibits, with the length of the path traversed by the electrical control signal, a determined difference for decreasing or compensating for the difference in the speeds of propagation of the luminous flux and of the electrical signal. In particular, the modulation zone includes a path of the luminous flux winding around itself and successively crossing at least two indentations emanating from at least two of these control elements. It thus exhibits a length greater than that traversed by the electrical signal, for example between a first and a second region of interaction between this control signal and this luminous flux.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: June 24, 2014
    Assignees: Universite Paris Sud 11, Centre National de la Recherche Scientifique
    Inventors: Gilles Rasigade, Laurent Vivien, Delphine Marris-Morini
  • Patent number: 8721074
    Abstract: Ophthalmic lenses, including contact lenses may be enhanced through the incorporation of both active and passive electrical components. Electrical interconnects and die attachment configurations are required to ensure electrical connectivity between the components and the optic portion of the lens as well as providing a means for mounting planar devices on spherical surfaces. Electrical interconnects and die attachment for powered ophthalmic devices, including contact lenses includes realizing conductive traces on optical plastic, attaching planar dies to spherical surfaces and underfilling, overmolding and light blocking to complete the lens.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: May 13, 2014
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Randall Braxton Pugh, Adam Toner, Praveen Pandojirao-S, James Daniel Riall, Daniel B. Otts, Edward Kernick
  • Patent number: 8712195
    Abstract: Disclosed is an optical modulator module including an optical modulator configured to have a signal electrode and a ground electrode; a conductive package configured to accommodate the optical modulator and have electrical continuity with the ground electrode of the optical modulator; a substrate configured to have a ground electrode on a first surface thereof electrically connected to the package by solder or a conductive adhesive and have a signal electrode on another surface thereof; and a lead pin configured to electrically connect the signal electrode of the optical modulator to the signal electrode of the substrate.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: April 29, 2014
    Assignee: Fujitsu Optical Components Limited
    Inventor: Masaki Sugiyama
  • Patent number: 8711464
    Abstract: A protection circuit includes: a first electrode; a second electrode; and an ionic material which comes into contact with the first electrode and the second electrode, wherein when a given difference in potential is generated between the first electrode and the second electrode, an electric current flows between the first electrode and the second electrode through the ionic material.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: April 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Yukimasa Ishida
  • Patent number: 8693081
    Abstract: A device and method of making and using the same. The device includes first and second substrates that are spaced to define a fluid space. Polar and non-polar fluids occupy the fluid space. A first electrode, with a dielectric layer, is positioned on the first substrate and electrically coupled to at least one voltage source, which is configured to supply an electrical bias to the first electrode. The fluid space includes at least one fluid splitting structure that is configured to facilitate the movement of the non-polar fluid into a portion of the polar fluid. Fluid splitting structure assisted movement of the non-polar fluid splits the polar fluid.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 8, 2014
    Assignee: University of Cincinnati
    Inventors: Jason Heikenfeld, Matthew Hagedon, Kenneth Dean Andrew
  • Patent number: 8623191
    Abstract: A device and method for displaying grey levels on electronic paper is provided. According to various embodiments, a system for electronic paper can include an electret substrate embedded with at least one first capsule containing a first plurality of charged pigment particles and at least one second capsule containing a second plurality of charged pigment particles. The system can further include a first electrode interfacing with one side of the electret substrate and a second electrode interfacing with a second side of the electret substrate. The first plurality of charged pigment particles can move in the direction of one of the first and second electrodes having a polarity that is opposite to that of the first plurality of the charged pigment particles in response to a voltage applied to the first and second electrodes that is greater than a first threshold.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: January 7, 2014
    Assignee: Honeywell International Inc.
    Inventor: Andrei Cernasov
  • Publication number: 20130342887
    Abstract: Spatial light modulator configured as a periodic structure of polymer grating layers arranged essentially at equal distances and intermediate spaces to form a periodic grating structure. The surfaces bounding the periodic grating structure have electrodes influencing the refractive index of the active optical medium by an electric field. The electrodes have a pixelated arrangement and can be driven independently of each other with an electrical voltage. The orientation layer thickness and grating period of the periodic grating structure are configured so that they do not correspond to the Bragg condition for the light from at least one light source, and so that for light from the at least one light source incident on the spatial light modulator the light fraction deviated owing to Bragg diffraction is less than the undeviated transmitted light fraction.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 26, 2013
    Inventors: Norbert LEISTER, Gerald FUETTERER
  • Patent number: 8599465
    Abstract: A method for making an electrowetting device includes: (a) forming a surrounding wall on an upper surface of a substrate to surround a microchamber, the surrounding wall having an inner surface surrounding the microchamber and a top surface above the inner surface, the upper surface of the substrate being non-hydrophobic; (b) coating the surrounding wall and the upper surface of the substrate with a hydrophobic coating material; (c) removing a portion of the hydrophobic coating material formed on the top surface of the surrounding wall, thereby exposing the top surface of the surrounding wall; and (d) disposing a liquid into the microchamber.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: December 3, 2013
    Assignee: Incha Hsieh
    Inventor: Incha Hsieh
  • Patent number: 8587856
    Abstract: A nonlinear optical system comprises a metallic film having a first side and a second side. The nonlinear optical system further comprises a regular array of slits in the metallic film. The slits connect the first and second sides of the metallic film. The array is configured to selectively transmit through the metallic film light having frequencies of a selected frequency band. The nonlinear optical system still further comprises a nonlinear optical material situated within the slit.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: November 19, 2013
    Assignee: Alcatel Lucent
    Inventors: Gang Chen, Ronen Rapaport
  • Patent number: 8570636
    Abstract: A display element is described. The display element includes: a network; a continuous phase; and a discontinuous mobile phase, which is capable of responding to an externally applied electric field such that under influence of the externally applied electric field, without effecting bulk movement of the continuous phase, the mobile phase displaces from one location to another location through or within the network. A process of manufacturing a display cell is also described. The process includes: obtaining a pair of electrodes; placing a network between the electrodes; assembling the electrodes and the network to form a sub-assembly; and injecting into the subassembly a discontinuous phase.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: October 29, 2013
    Assignee: Zikon Inc.
    Inventors: Mateusz Bryning, Zbigniew Bryning, Remy Cromer
  • Patent number: 8565559
    Abstract: To achieve high-speed optical modulation using a crystal having a complicated refractive index characteristic with respect to applied electric field, provided is an optical device comprising a substrate; a dielectric film that is formed on the substrate and includes a first optical waveguide and a second optical waveguide that run parallel to each other; a transmission line that is formed on the dielectric film and includes a signal line arranged between the first optical waveguide and the second optical waveguide, a first bias electrode, and a second bias electrode, the first bias electrode and the second bias electrode arranged respectively in a first region that is on a side of the first optical waveguide opposite the second optical waveguide and a second region on a side of the second optical waveguide opposite the first optical waveguide; and a drive circuit section that respectively applies a first bias voltage and a second bias voltage differing from each other to the first bias electrode and the secon
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: October 22, 2013
    Assignee: Advantest Corporation
    Inventor: Hideo Hara
  • Patent number: 8526090
    Abstract: An optical modulator device includes a body portion operative to propagate an optical mode along a longitudinal axis of the body portion, the body portion comprising a first layer disposed on a second layer, wherein the first layer includes a first p-type doped region adjacent to a first n-type doped region along the longitudinal axis of the body portion, and the second layer includes a second n-type doped region disposed on the first p-type doped region and a second p-type doped region adjacent to the second n-type doped region along the longitudinal axis of the body portion, the second p-type doped region disposed on the first n-type doped region.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: September 3, 2013
    Assignee: International Business Machines Corporation
    Inventors: William M. Green, Jessie C. Rosenberg, Yurii A. Vlasov
  • Patent number: 8514475
    Abstract: An electro-optic device includes an electro-optic crystal having a predetermined thickness, a first face and a second face. The electro-optic device also includes a first electrode substrate disposed opposing the first face. The first electrode substrate includes a first substrate material having a first thickness and a first electrode coating coupled to the first substrate material. The electro-optic device further includes a second electrode substrate disposed opposing the second face. The second electrode substrate includes a second substrate material having a second thickness and a second electrode coating coupled to the second substrate material. The electro-optic device additionally includes a voltage source electrically coupled to the first electrode coating and the second electrode coating.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: August 20, 2013
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Robert J. Deri, Mark A. Rhodes, Andrew J. Bayramian, John A. Caird, Mark A. Henesian, Christopher A. Ebbers
  • Patent number: 8493645
    Abstract: An optically powered optical modulator comprises an optical modulation component, such as an electro-optical modulator, acousto-optic modulator or magneto-optic modulator, in combination with one or two lens assemblies positioned at one or both apertures of the optical modulation component, so that the optical modulator formed by the combination of the lens assembly or assemblies and the optical modulation component has optical focus power.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: July 23, 2013
    Assignee: PV Labs, Inc.
    Inventor: Eiji Yafuso
  • Patent number: 8488227
    Abstract: To include a light modulator having an anode electrode, a matching resistor, a first wire that is connected to the anode electrode and transmits to the anode electrode an input electric signal to the light modulator, a first conductor pad having a capacitor connected to the first wire, a second wire that connects the anode electrode and the matching resistor, and a second conductor pad having a capacitor connected to the second wire.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: July 16, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toshitsugu Uesugi, Hiroshi Aruga
  • Patent number: 8446657
    Abstract: Embodiments relate to a method and apparatus for producing polarized light, having a modulator crystal, where the modulator crystal incorporates a birefringent electro-optic material. The modulator crystal has an optic axis, a first polarization axis, and a second polarization axis, where the first polarization axis and second polarization axis are each perpendicular to the optic axis and perpendicular to each other. The apparatus can also include an electrode pair, where application of an electric field modulates light passing through the modulator crystal that is polarized along the first polarization axis. Embodiments pertain to a method and apparatus for modulating light. The apparatus incorporates a modulator crystal having an electro-optic material. The device also has at least two electrode pairs, where each electrode pair modulates light passing through the modulator crystal that has a direction of travel that has a component parallel to the optic axis.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: May 21, 2013
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Volker M. Quetschke, Wan Wu, Luke Williams, Muzammil A. Arain, Rodica Martin, David Reitze, David B. Tanner, Guido Mueller
  • Patent number: 8411349
    Abstract: An optical modulator includes an optical modulation substrate, an electrical length adjusting substrate, a package containing the substrates, and a plurality of input ports for inputting high frequency electrical signals. The optical modulation substrate includes a substrate body made of an electro-optic material, a ground electrode and a plurality of signal electrodes provided on the substrate body, optical waveguides propagating lights interacting with the signal electrodes, respectively, and electrode input ports inputting the high frequency electrical signals into the signal electrodes, respectively. The signal electrode includes an interacting part, an input end part provided between the electrode input port and interacting part, and a terminal part. The electrical length adjusting substrate includes conductive lines connected to the input ports for inputting the high frequency electrical signals, respectively.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: April 2, 2013
    Assignee: NGK Insulators, Ltd.
    Inventors: Osamu Mitomi, Yasunori Iwasaki, Yuji Hori, Kenji Aoki, Jungo Kondo