Attenuator Patents (Class 385/140)
  • Patent number: 10895740
    Abstract: A projective MEMS device, including: a fixed supporting structure made at least in part of semiconductor material; and a number of projective modules. Each projective module includes an optical source, fixed to the fixed supporting structure, and a microelectromechanical actuator, which includes a mobile structure and varies the position of the mobile structure with respect to the fixed supporting structure. Each projective module further includes an initial optical fiber, which is mechanically coupled to the mobile structure and optically couples to the optical source according to the position of the mobile structure.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: January 19, 2021
    Assignee: STMICROELECTRONICS S.r.l.
    Inventors: Guido Chiaretti, Fabio Luigi Grilli, Roberto Carminati, Bruno Murari, Lorenzo Sarchi
  • Patent number: 10802219
    Abstract: An optical attenuator has a male connector, a female connector that is spaced apart from the male connector in a front-rear direction, a holder, and an attenuating member. The holder extends in the front-rear direction and has two opposite ends respectively connected to the male and female connectors. The holder is formed with a mounting groove which extends in the front-rear direction. The attenuating member extends through the mounting groove, and has two opposite ends respectively inserted into the male and female connectors.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: October 13, 2020
    Assignee: SHEN ZHEN WONDERWIN TECHNOLOGY CO., LTD.
    Inventors: Jim Lin, Kexue Ning, Xiangxu Zeng
  • Patent number: 10785359
    Abstract: A lighting device for a mobile terminal is disclosed. In an embodiment the lighting device includes a light-emitting component comprising a light-emitting semiconductor element and a first light emission face and a second light emission face, the light-emitting component configured to emit light radiation, a first optical waveguide for guiding the light radiation via the first light emission face to a first radiation element, a second optical waveguide for guiding the light radiation via the second light emission face to a second radiation element and at least one optical switch arranged in a region of the first light emission face or the second light emission face for controlling a quantity of light emitted from the light-emitting component via the respective light emission face.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: September 22, 2020
    Assignee: OSRAM OLED GmbH
    Inventor: Luca Haiberger
  • Patent number: 10749598
    Abstract: An integrated optical device includes: a housing; a liquid-crystal optical power attenuator, an optical splitter, and an optical power monitor housed inside the housing; and first and second optical fibers housed inside the housing. The first optical fibers input an optical signal from outside the housing to the optical power attenuator. In a polarized state, the optical power attenuator attenuates the optical signal from the first optical fibers. The second optical fibers output the attenuated optical signal from the optical power attenuator to outside the housing. The optical splitter generates a split signal by splitting at least one of: the optical signal input to the optical power attenuator from the first optical fibers, and the attenuated optical signal propagated from the optical power attenuator to the second optical fibers. The optical power monitor receives the split signal and detects a power of the split signal.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: August 18, 2020
    Assignee: Santec Corporation
    Inventor: Yasuki Sakurai
  • Patent number: 10735091
    Abstract: A multiplexer inserts a dummy signal light into a main signal. A light intensity monitor acquires the intensity of the light of each wavelength of a light output from a wavelength selective switch. A light source controller controls the insertion of the dummy signal light into the main signal, and release of the insertion. A difference calculator calculates the difference between a first light intensity that has been acquired in a state in which the dummy signal light is inserted into the main signal and a second light intensity that has been acquired in a state in which the dummy signal light is not inserted into the main signal. An insertion loss calculator calculates an insertion loss in the wavelength selective switch based on the calculated difference. An insertion loss controller controls the insertion loss in the wavelength selective switch based on the calculated insertion loss.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: August 4, 2020
    Assignee: NEC CORPORATION
    Inventor: Takanori Inoue
  • Patent number: 10678015
    Abstract: A method for creating a network architecture, wherein network material is allocated for three tiers including future network clients, includes: a) Establishing active optical equipment within a central office; b) Connecting the central office to at least one Fiber Distribution Hub with at least one Distribution Cable having multiple fibers; c) Designating a portion of the multiple fibers of the distribution cable such that fibers are allotted specifically to tier 1 demand, tier 2 demand, and tier 3 future demand; d) Connecting at least one Fiber Distribution Hub to an intermediate splice closure (ISC) with at least one access fiber (AF) cable having multiple fibers; e) Splicing multi-port service terminal (MST) cable tails into at least one of the access fiber cables at the intermediate splice closure; f) Connecting at least one network interface device (NID) to the multi service terminal.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: June 9, 2020
    Inventor: Michael Measels
  • Patent number: 10598858
    Abstract: A fiber optic connection device having a casing with a first end and a second end is disclosed. An optical splitter is positioned in the casing and has an input proximal to the first end of the casing and an output proximal to the second end of the casing. A first optical interface is located adjacent to the first end and is in optical communication with the input of the optical splitter. The first optical interface includes a first optical fiber interconnection point. A second optical interface is located adjacent the second end of the casing and is in optical communication with the output of the optical splitter. The second optical interface includes a second optical fiber interconnection point. In some embodiments, the casing may provide protection from environmental elements.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 24, 2020
    Assignee: Corning Optical Communications LLC
    Inventors: Patrick Faraj, Joseph Clinton Jensen, Kristine Alaina Johnson, Antwan Joco'ques Works
  • Patent number: 10530117
    Abstract: An optical fiber laser device generates laser light by using an optical amplifying fiber as an amplification medium in a laser oscillator and includes: an optical outputting fiber configured to emit laser light to an outside; a return-light-attenuating portion configured to perform an attenuation process to return light propagating through at least the optical outputting fiber in a reverse direction of the laser light; a thermal conversion unit provided at the return-light-attenuating portion and configured to convert the return light into heat; a temperature-monitoring device configured to measure an increase in a temperature, of the return-light-attenuating portion, caused by the heat converted by the thermal conversion unit; and a control unit configured to decrease or stop an output of the laser light when the temperature measured by the temperature-monitoring device becomes a predetermined threshold temperature or higher.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: January 7, 2020
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Koji Kajiwara, Takeshi Takagi, Kousuke Kashiwagi, Kazuaki Hyuga, Yoshihiro Emori
  • Patent number: 10488592
    Abstract: An optical power attenuator includes: a MEMS package storing a MEMS element that can control a reflection angle of light by a mirror; a capillary member provided to one end of a two-core optical fiber that transmits the light and that has an end surface on a side that inputs/outputs the light to the two-core optical fiber tilted at a predetermined angle relative to an optical axis of the two-core optical fiber; and a lens that causes a light emitted from one of the optical fibers of the two-core optical fiber to become incident on the MEMS element via the capillary member and guides the reflected light reflected by the mirror of the MEMS element to the other optical fiber of the two-core optical fiber.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: November 26, 2019
    Assignee: Santec Corporation
    Inventor: Yasuki Sakurai
  • Patent number: 10444439
    Abstract: An optical connector is disclosed. The optical connector includes an optical fiber, a ferrule that holds the optical fiber, the ferrule having a flat ferrule end surface facing a counterpart optical connector, and a spacer provided on the ferrule end surface so as to define a clearance between the ferrule end surface and the counterpart optical connector. A tip surface of the optical fiber is exposed at the ferrule end surface. Respective normal directions to the tip surface of the optical fiber and the ferrule end surface are inclined with respect to an optical-axis direction of the optical fiber in a section along an optical axis of the optical fiber. The spacer includes an opening configured to allow an optical path extending from the tip surface of the optical fiber to pass therethrough.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: October 15, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hajime Arao, Tomomi Sano, Osamu Shimakawa, Masakazu Fukuda, Takako Hosokawa
  • Patent number: 10422965
    Abstract: A fiber optic connector assembly, including a boot portion connected to a fiber optic cable, a fixed body portion connected to the boot portion, a rotatable coupler connected to the fixed body portion and configured to rotate about the fixed body portion, a ferrule connected to the rotatable coupler and configured to rotate with the rotatable coupler about the fixed body portion, and a bulkhead adapter configured to receive the rotatable coupler after the rotatable coupler has been turned in one direction and released in another direction.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: September 24, 2019
    Inventor: Steve Cheng
  • Patent number: 10409010
    Abstract: An apparatus includes first and second components. A track supports one of the components for movement toward the other of the components. A first connector is mounted on the first component. The first connector retains an end portion of a first fiber optic cable, and has a first alignment portion. A second connector retains an end portion of a second fiber optic cable, and has a second alignment portion. The second alignment portion guides the second fiber optic cable radially into coaxial alignment with the first fiber optic cable upon movement of the first alignment portion against the second alignment portion. A floating mount device supports the second connector on the second component for guided movement radially relative to the second component upon movement of the first alignment portion against the second alignment portion.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: September 10, 2019
    Assignee: EATON CORPORATION
    Inventors: Daniel Edward Hrncir, Robert Judson Burns, David Aaron Metcalf
  • Patent number: 10379353
    Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: August 13, 2019
    Assignee: Magic Leap, Inc.
    Inventors: Nicole Elizabeth Samec, John Graham Macnamara, Christopher M. Harrises, Brian T. Schowengerdt, Rony Abovitz, Mark Baerenrodt
  • Patent number: 10345525
    Abstract: Photonic integrated circuits including controllable cantilevers are described. Such photonic integrated circuits may be used in connection with other optical devices, in which light is transferred between the photonic integrated circuit and one of these optical device. The photonic integrated circuit may comprise an optical waveguide having an end disposed proximate to a facet of the cantilever. The orientation of the cantilever may be actively controlled in one or two dimensions, thus adjusting the orientation of the optical waveguide. Actuation of the cantilever may be performed, for example, thermally and/or electrostatically. Orientation of the cantilever may be performed in such a way to align the optical waveguide with an optical device.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: July 9, 2019
    Assignee: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Li Chen, Long Chen
  • Patent number: 10295718
    Abstract: An illumination fiber optics is provided that includes an optical fiber, configured to receive illumination light at a proximal end from a light source; and a light-scattering element, at a distal end of the optical fiber, configured to receive the illumination light from the optical fiber at a proximal end and to emit the illumination light at a distal end in a wide angle. The illumination fiber optics can be prepared by providing an optical fiber, configured to receive illumination light at a proximal end from a light source; and creating a light-scattering element at a distal end of the optical fiber, configured to receive the illumination light from the optical fiber at a proximal end and to emit the illumination light at a distal end in a wide angle.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: May 21, 2019
    Assignee: Novaris AG
    Inventors: Alireza Mirsepassi, Ronald T. Smith, Michael J. Papac, Chenguang Diao
  • Patent number: 10228524
    Abstract: The invention discloses an optical device and an optical module, the optical device includes a collimation lens arranged on an outer surface for converting incident light from a light source to parallel light, further includes a transmission light total reflection surface for totally reflecting a part of the parallel light at a first angle so that the part of the parallel light is finally coupled to an external optical fiber, a detection light total reflection surface for totally reflecting a part of the parallel light at a second angle so that the part of the parallel light is finally coupled to an external optical detector, and at least one attenuation light reflection surface for totally reflecting parallel light to be attenuated at a third angle before the parallel light leaves the optical device. The invention achieves the light intensity attenuation while realizing the direction-changing transmission of light signals.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: March 12, 2019
    Assignees: HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES CO., LTD., HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES, LTD.
    Inventors: Yungliang Huang, Yicheng Liu, Wenkai Tu
  • Patent number: 10159483
    Abstract: A surgical apparatus is disclosed which comprises a handle module and a detachable shaft module for collectively performing a surgical procedure. The handle module comprises a rotary drive system for driving the detachable shaft module, an electric motor coupled to the rotary drive system for powering the rotary drive system, one or more sensors, and a handle module processor circuit in communication with the one or more sensors and the electric motor. The handle module processor circuit is programmed to control the electric motor. The handle module processor circuit is also programmed to track and/or count an end-of-life parameter for the handle module based on input from the one or more sensors.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: December 25, 2018
    Assignee: Ethicon LLC
    Inventors: Andrew T. Beckman, Anil K. Nalagatla, Robert L. Koch, Jr., John A. Hibner, Frederick E. Shelton, IV
  • Patent number: 10142712
    Abstract: Embodiments describe transceiver architectures to enable ‘loopback’ operation, thereby allowing or on-chip or intra module characterization of the transceiver. This includes but is not limited to tests such as bit error rate (BER) characterization, received power characterization and calibration of filters (MUX, DMUX etc.) present in the transceiver. Embodiments may also describe architectures for superimposing low-speed data on to the signal coming out of a transmitter, which in turn enables low frequency communication between network elements in the external link.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: November 27, 2018
    Assignee: Aurrion, Inc.
    Inventors: John M. Garcia, Anand Ramaswamy, Gregory Alan Fish
  • Patent number: 10133000
    Abstract: An optical system having two or more different optical elements with a corresponding interface between the optical elements. At least one of the optical elements has an anti-reflective structure that is transferred to the interface between two optical elements, typically by embossing. Also disclosed is the related method for making the optical system.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: November 20, 2018
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Jasbinder S. Sanghera, Catalin M Florea, Leslie Brandon Shaw, Lynda E Busse, Ishwar D. Aggarwal, Steven R. Bowman
  • Patent number: 10122457
    Abstract: A method includes receiving a first optical signal at a first communication terminal from a second communication terminal through a free space optical link and determining a receiving power for the optical link based on the first optical signal. The method further includes adjusting an output amplification at the first communication terminal based on the receiving power for the optical link. The output amplification is adjusted to provide a second optical signal with a minimum transmission power for maintaining the optical link. The method transmits the second optical signal from the first communication terminal to the second communication terminal through the optical link.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: November 6, 2018
    Assignee: X Development LLC
    Inventors: Chiachi Wang, Christopher Joshua Shiro Ito
  • Patent number: 10101546
    Abstract: An optical module includes: a photonic device emitting or receiving a light wave; an optical waveguide for transmitting the light wave; a lens focusing the light wave; a mirror for changing a traveling direction of the light wave to optically couple the photonic device with the optical waveguide; a manipulation lever for manipulating an orientation of the mirror; a support spring for supporting the mirror; and a substrate integrated with the mirror, the manipulation lever, and the support spring. The support spring couples the mirror with the substrate so as to allow the mirror to change the orientation thereof with movement or rotation along at least two axes. The manipulation lever extends from the mirror in a direction in which the manipulation lever avoids approaching the optical waveguide.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: October 16, 2018
    Assignee: OCLARO JAPAN, INC.
    Inventor: Takanori Suzuki
  • Patent number: 10073205
    Abstract: An optical module of a vehicle light includes a light guide and a light source arranged adjacent to an end of the light guide. The light guide includes a main portion and several light reflecting structures connected to each other and arranged on the main portion in one row. Each light reflecting structure defines a datum plane arranged adjacent to the main portion, and includes a light transmitting surface, a light reflecting surface, and a connecting surface connected to the light transmitting surface and the light reflecting surface. In each light reflecting structure, an angle between the light transmitting surface and the datum plane is larger than that between the light reflecting surface and the datum plane. The thicknesses of the light reflecting structures, each is defined by a distance between the connecting surface and the datum plane, are gradually increased in a direction away from the light source.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: September 11, 2018
    Assignee: MAXZONE VEHICLE LIGHTING CORP.
    Inventor: Wei-Ming Chen
  • Patent number: 10031310
    Abstract: An optical device capable of suppressing a reflected light at an end of an optical waveguide regardless of the width of the optical waveguide is provided. An optical device includes an optical waveguide and a terminator. The optical waveguide is formed on a substrate. The terminator is formed on the substrate in such a way that the terminator is connected to one end of the optical waveguide, includes a curved optical waveguide having such a curvature that it causes a bending loss in an input light input from the optical waveguide, the input light decaying as it propagates through the curved optical waveguide.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: July 24, 2018
    Assignee: NEC Corporation
    Inventor: Hiroyuki Yamazaki
  • Patent number: 10025034
    Abstract: An integrated optical device is mounted with two optical fibers that transmit a light and, as functional components in a space of a housing forming an optical path from one of the optical fibers to the other light, is provided with an optical power attenuator that attenuates, using vignetting, a light incident from the one optical fiber or a light emitted from the other optical fiber and a tunable filter that selects a light of a predetermined wavelength from among the light incident from the one optical fiber and emits this selected light from the other optical fiber.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: July 17, 2018
    Assignee: Santec Corporation
    Inventor: Yasuki Sakurai
  • Patent number: 9958624
    Abstract: A structure for optically aligning an optical fiber to a protonic device and method of fabrication of same. The structure optically aligns an optical fiber to the protonic device using a lens between the two which is moveable by actuator heads. The lens is moveable by respective motive sources associated with the actuator heads.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 1, 2018
    Assignee: Micron Technology, Inc.
    Inventors: Gurtej Sandhu, Roy Meade, Lei Bi, John Smythe
  • Patent number: 9912406
    Abstract: Systems and methods for optical narrowcasting are provided for transmitting various types of content. Optical narrowcasting content indicative of the presence of additional information along with identifying information may be transmitted. The additional information (which may include meaningful amounts of advertising information, media, or any other content) may also be transmitted as optical narrowcasting content. Elements of an optical narrowcasting system may include optical transmitters and optical receivers which can be configured to be operative at distances ranging from, e.g., 400 meters to 1200 meters. Moreover, the elements can be implemented on a miniaturized scale in conjunction with small, user devices such as smartphones, thereby also realizing optical ad-hoc networking, as well as interoperability with other types of data networks. Optically narrowcast content can be used to augment a real-world experience, enhance and/or spawn new forms of social-media and media content.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: March 6, 2018
    Assignee: SUREFIRE LLC
    Inventors: Narkis E. Shatz, John C. Bortz
  • Patent number: 9900494
    Abstract: In a state in which an APD filter is present on an optical axis of an imaging optical system, a digital camera sets the maximum movable amount of a focus lens to one side of an optical axis direction to a value that is less than that in a state in which the APD filter is not present on the optical axis of the imaging optical system and moves the focus lens in the range of the set maximum movable amount.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: February 20, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Akihiro Uchida
  • Patent number: 9864216
    Abstract: An optical modulator includes a substrate having an electro-optic effect, an optical waveguide formed on the substrate, a modulation part which modulates light waves propagating through the optical waveguide, and a light receiving element which detects the light waves propagating through the optical waveguide. As the modulation part, a first modulation part and a second modulation part, which respectively modulate light waves into which input light branches, are provided. As the light receiving element, a light receiving element for the first modulation part and a light receiving element for the second modulation part are provided. The light receiving elements are disposed such that their positions in a light propagation direction are shifted from each other by an amount corresponding to one light receiving element, or more.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: January 9, 2018
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Norikazu Miyazaki, Tokutaka Hara
  • Patent number: 9719854
    Abstract: A spectroscopic analysis device for analysis of a sample comprising: a photonic integrated circuit (PIC) comprising: an input (DEF) for receiving light from the sample; and a demultiplexer (DEMUX) arranged to distribute the received light into at least a first optical chain (C1) and a second optical chain (C2); wherein each optical chain (C1, C2) of the photonic integrated circuit (PIC) further comprises a tunable bandpass filter (TBF1, TBF2) and a variable attenuator (ATT1, ATT2) and a photodetector (PD1, PD2) arranged respectively to filter and to attenuate and to detect the light distributed into its corresponding optical chain (C1, C2).
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: August 1, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Klaas Cornelis Jan Wijbrans, Gerhardus Wilhelmus Lucassen, Bernardus Hendrikus Wilhelmus Hendriks
  • Patent number: 9716551
    Abstract: A method includes receiving a first optical signal at a first communication terminal from a second communication terminal through a free space optical link and determining a receiving power for the optical link based on the first optical signal. The method further includes adjusting an output amplification at the first communication terminal based on the receiving power for the optical link. The output amplification is adjusted to provide a second optical signal with a minimum transmission power for maintaining the optical link. The method transmits the second optical signal from the first communication terminal to the second communication terminal through the optical link.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: July 25, 2017
    Assignee: Google Inc.
    Inventors: Chiachi Wang, Christopher Joshua Shiro Ito
  • Patent number: 9690093
    Abstract: A scanning device is presented having a substrate with a first surface and an opposite, parallel second surface. A region of the substrate includes the first surface and the opposite parallel second surface, and is defined via an etching process through a thickness of the substrate, where the region remains attached to the substrate via one or more hinges. A waveguide is patterned over the first surface of the region and guides a beam of radiation along a length of the waveguide. The scanning device includes a facet located on the first surface of the region. The facet is designed to reflect at least a portion of the beam of radiation through the region. An optical element is located on the second surface of the region, and is designed to receive the reflected portion of the beam of radiation.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: June 27, 2017
    Assignee: Medlumics S.L.
    Inventors: Eduardo Margallo Balbás, José Luis Rubio Guivernau, Kirill Zinoviev
  • Patent number: 9693122
    Abstract: Embodiments describe transceiver architectures to enable ‘loopback’ operation, thereby allowing or on-chip or intra module characterization of the transceiver. This includes but is not limited to tests such as bit error rate (BER) characterization, received power characterization and calibration of filters (MUX, DMUX etc.) present in the transceiver. Embodiments may also describe architectures for superimposing low-speed data on to the signal coming out of a transmitter, which in turn enables low frequency communication between network elements in the external link.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: June 27, 2017
    Assignee: Aurrion, Inc.
    Inventors: John M. Garcia, Anand Ramaswamy, Gregory Alan Fish
  • Patent number: 9668645
    Abstract: Devices, systems, and methods that utilize at least one charged electrode to impart motion to an optical fiber positioned within an imaging probe by an electrostatic force are provided. In some embodiments, an ophthalmic imaging probe can include a handle; a cannula coupled to the handle; an optical fiber positioned at least partially within the handle and the cannula, the optical fiber configured to receive an imaging light from an imaging light source and guide the imaging light to an optical element positioned within the cannula; and an actuator system configured to impart motion to the optical fiber, the actuator system including an electrode positioned within the cannula and configured to impart motion to the optical fiber by selectively imparting an electric charge to the electrode and/or the electrically conductive layer of the optical fiber.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: June 6, 2017
    Assignee: NOVARTIS AG
    Inventor: Barry Lynn Wheatley
  • Patent number: 9644818
    Abstract: The invention discloses an optical device and an optical module, the optical device includes a collimation lens arranged on an outer surface for converting incident light from a light source to parallel light, further includes a transmission light total reflection surface for totally reflecting a part of the parallel light at a first angle so that the part of the parallel light is finally coupled to an external optical fiber, a detection light total reflection surface for totally reflecting a part of the parallel light at a second angle so that the part of the parallel light is finally coupled to an external optical detector, and at least one attenuation light reflection surface for totally reflecting parallel light to be attenuated at a third angle before the parallel light leaves the optical device. The invention achieves the light intensity attenuation while realizing the direction-changing transmission of light signals.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: May 9, 2017
    Assignees: HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES CO., LTD., HISENSE USA CORPORATION
    Inventors: Yungliang Huang, Yicheng Liu, Wenkai Tu
  • Patent number: 9455789
    Abstract: An optical reception apparatus may include a variable optical attenuator, a detector, and a controller. The variable optical attenuator may adjust a loss of an output optical power of a received light. The detector may detect that the output optical power is equal to or lower than a first level. The first level may be used to determine whether the output optical power is in a light interruption state. The controller may increase, in response to the detection made by the detector, the loss of the variable optical attenuator to a loss according to a second level. The second level may be used to determine whether the light interruption state is recovered.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: September 27, 2016
    Assignee: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventor: Hidekazu Takeda
  • Patent number: 9442254
    Abstract: A high density, low power, high performance information system, method and apparatus are described in which perpendicularly oriented processor and memory die stacks (130, 140, 150, 160, 170) include integrated deflectable MEMS optical beam waveguides (e.g., 190) at each die edge (e.g., 151) to provide optical communications (184) in and between die stacks by using a beam control method and circuit to maintain and adjust alignment over time by calibrating and updating X and Y counter values stored in deflection registers (541-542) to control DAC circuitry (546, 548) which generates and supplies deflection voltages to charging capacitors (551, 552) connected to deflection electrodes (195-197) positioned on and around each MEMS optical beam waveguide (193-194) to provide two-dimensional alignment and controlled feedback to adjust beam alignment and establish optical communication links between die stacks.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: September 13, 2016
    Assignee: FREESCALE SEMICONDUCTOR, INC.
    Inventor: Perry H. Pelley
  • Patent number: 9383514
    Abstract: To provide a tapered optical fiber having a good outer diameter accuracy and a high reproducibility, a manufacturing method of the tapered optical fiber, and a manufacturing system of the tapered optical fiber. The above-mentioned problem is solved by manufacturing system 1 of a tapered optical fiber comprising: shifter 11, 12 which reciprocates optical fiber 10 mounted at positions having a prescribed distance therebetween in the longer direction X of optical fiber 10 (the direction of the optical axis); and heating device 13 which heats the reciprocating optical fiber 10 at fixed position O, wherein shifter 13 includes a broadening unit which can increase the mounting distance (L1+L2) of the optical fiber while reciprocating the optical fiber. Shifter 11, 12 has at least two mounting unit which fix the optical fiber 10, and serves as a broadening unit controlling the two mounting unit independently or interlockingly.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: July 5, 2016
    Assignee: Ishihara Sangyo Co., Ltd.
    Inventors: Hidetoku Iida, Rumiko Osada, Hideaki Shiratori
  • Patent number: 9383517
    Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for alternate connection of two devices via multiple branches of a waveguide. In one embodiment, the apparatus may include a first device (e.g., a peripheral device), a second device (e.g., a computing device) mountable on the first device in a first or second position, and a waveguide substantially disposed in the first device to communicatively couple the first device with the second device. The waveguide may comprise a movable connector and first and second branches corresponding to the first and second positions. The movable connector may alternately communicatively couple the first device with the second device via the first or second branch and disconnect the second or first branch respectively in response to corresponding placement of the second device in the first or second position. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: July 5, 2016
    Assignee: Intel Corporation
    Inventor: Dan H. Gerbus
  • Patent number: 9358888
    Abstract: A display apparatus in a motor vehicle has at least one display element, which can be used to display at least one value and which has at least one light-emitting element for adjusting a display brightness for the display element. A sensing device has, a sensing element for sensing an ambient brightness for surroundings of the display element. The display brightness can be adjusted by the light-emitting element on the basis of the sensed ambient brightness. The sensing device is designed to prompt at least one function of the motor vehicle that is different than the adjustment of the display brightness when a change in the ambient brightness is sensed. A method operates such a display apparatus.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: June 7, 2016
    Assignee: AUDI AG
    Inventors: Stephan Schwantner, Christian Wall
  • Patent number: 9266468
    Abstract: The present invention provides a linear lighting device which includes an elongated light guide, a light source disposed at an end in a longitudinal direction of the light guide, and a case accommodating the light guide and the light source. In the linear lighting device, the light guide has a plurality of grooves arranged in the longitudinal direction of the light guide, and has a stepped cutout at the other end on an opposite side from the end, and a protruding portion protruding into the cutout is formed on an inner surface of the case which faces the cutout.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: February 23, 2016
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Tetsu Mizushiro, Yukihiko Umeda, Shinichi Ogawa
  • Patent number: 9207399
    Abstract: Embodiments of the invention describe systems, apparatuses and methods for providing athermicity and a tunable spectral response for optical filters. Finite impulse response (FIR) filters are commonly implemented in photonic integrated circuits (PICs) to make devices such as wavelength division multiplexing (WDM) devices, asymmetric Mach-Zehnder interferometers (AMZIs) and array waveguide gratings (AWGs). Athermicity of an FIR filter describes maintaining a consistent frequency transmission spectrum as the ambient temperature changes. A tunable spectral response for an FIR filter describes changing the spectrum of an FIR filter based on its application, as well as potentially correcting for fabrication deviations from the design. In addition, embodiments of the invention reduce energy dissipation requirements and control complexity compared to prior art solutions.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: December 8, 2015
    Assignee: Aurrion, Inc.
    Inventors: Jonathan Edgar Roth, Daniel Knight Sparacin, Gregory Alan Fish
  • Patent number: 9146351
    Abstract: A loopback housing has an upper body portion and a lower body portion that are removably connected to one another. One of the body portions has a fiber opening to protect the optical fibers that are looped around for the fiber optic connector. The loopback housing also functions to remove and insert the fiber optic connector into an adapter, particularly in a high density application.
    Type: Grant
    Filed: July 7, 2012
    Date of Patent: September 29, 2015
    Assignee: US Conec, Ltd
    Inventors: Mike Elbert Hughes, Jillcha Fekadu Wakjira, Darrell Randolph Childers, John H. Fox, Yefim Gorelik
  • Patent number: 9103991
    Abstract: An optical switch having multiple input and output ports directs any number of WDM signals, each arriving at a respective input port, to any one of the output ports. The optical switch includes an array of LC pixels, each positioned to receive a WDM signal transmitted through one of the ports, and an array of reflective elements, each associated with one of the LC pixels. The LC pixels are controlled to cause a WDM signal incident thereon to attain an attenuation state while an output of the WDM signal is being switched by an associated reflective element, such that when an output for a WDM signal is switched from a first port to a second port, the switching can be performed in a hitless manner.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: August 11, 2015
    Assignee: Finisar Corporation
    Inventor: Gil Cohen
  • Patent number: 9092693
    Abstract: According to one embodiment, an image processing apparatus includes following units. The extraction unit extracts, from image data including a plurality of pixels, wavelength signal values of the plurality of pixels. The light attenuation amount calculation unit calculates a light attenuation amount based on a ratio of a wavelength signal value of a target pixel to a representative signal value obtained from wavelength signal values of a local region around the target pixel. The pigment amount calculation unit calculates a pigment amount of a predetermined pigment component at the target pixel by resolving the light attenuation amount using an absorbance base of the predetermined pigment component.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: July 28, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yusuke Moriuchi, Toshimitsu Kaneko, Kanako Saito
  • Patent number: 9090470
    Abstract: A method of producing a positive electrode active substance comprising steps of: dissolving a lithium source, an M source, a phosphorus source and an X source in amounts needed to form a lithium-containing composite oxide having an olivine structure and represented by the following general formula (1): LixMyP1?zXzO4??(1) wherein, in the formula, M is at least one kind of element selected from the group of Fe, Ni, Mn, Zr, Sn, Ti, Nb, V, Al and Y; X is at least one kind selected from the group of Si and Al; 0<x?2; 0.8?y?1.2; and 0?z?1, in a solvent being capable to dissolve these sources, thereby forming a solution; gelating the obtained solution by adding a cyclic ether compound and sintering the resulting gel to obtain the positive electrode active substance made of the lithium-containing composite oxide having an olivine structure that is covered with carbon deriving from the cyclic ether compound.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: July 28, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Toshitsugu Sueki, Motoaki Nishijima
  • Patent number: 9064080
    Abstract: An integrated circuitry structure includes at least first and second regions. An optical layer includes optical waveguides. A heat-conductive material transfers heat from at least the second region through the optical layer to a heat sink.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: June 23, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Harry Barowski, Thomas Brunschwiler, Roger F. Dangel, Hubert Harrer, Andreas Huber, Norbert M. Meier, Bruno Michel, Tim Niggemeier, Stephan Paredes, Jochen Supper, Jonas R. Weiss
  • Patent number: 9058461
    Abstract: A method in a computer-aided design system for generating a functional design model of an integrated circuitry structure including generating a functional representation of at least first and second regions of the integrated circuitry structure, generating a functional representation of an optical layer comprising optical waveguides, and generating a functional representation of a heat-conductive material for transferring heat from at least the second region through the optical layer to a heat sink.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: June 16, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Harry Barowski, Thomas Brunschwiler, Roger F. Dangel, Hubert Harrer, Andreas Huber, Norbert M. Meier, Bruno Michel, Tim Niggemeier, Stephan Paredes, Jochen Supper, Jonas R. Weiss
  • Patent number: 8995813
    Abstract: An optical apparatus comprises: a waveguide substrate, optical cladding formed on the substrate; a waveguide core formed within the cladding, an optically absorptive layer formed within the cladding, and a linearly polarized light source. The waveguide core includes an attenuating segment thereof, and the absorptive layer is formed near the attenuating segment of the core. The core and cladding are arranged to form an optical waveguide that supports a propagating optical mode. The absorptive layer is positioned near the attenuating segment of the core so as to spatially overlap a portion of the optical mode. The extent of the overlap results in a designed level of optical loss per unit distance of propagation of a linearly polarized optical signal along the attenuating segment of the optical core in the optical mode without substantial alteration of the polarization state of the optical signal.
    Type: Grant
    Filed: November 17, 2012
    Date of Patent: March 31, 2015
    Assignee: HOYA Corporation USA
    Inventors: Rolf A. Wyss, Toshiaki Sonehara
  • Patent number: 8995796
    Abstract: The invention relates to a system (1) for generating a (high-frequency) beat signal. The system has a first light source (3) with a multimode spectrum, a second light source (4) and a coupler and filter arrangement (5) with a first port (6) for coupling in light from the first light source (3), and a second port (7) for coupling in light from the second light source (4). Furthermore, a detector (11) is provided to which light of both light sources (3, 4) can be supplied. The coupler and filter arrangement (5) has a spectral filter (20, 28) for filtering out one or several modes from the spectrum of the first light source (3), and a first fiber-optical coupler (17, 23, 26) for coupling the light of the second light source (4) and the not yet filtered or the already filtered light of the first light source (3). The coupler and filter arrangement (5) is configured to be merely fiber-optical.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: March 31, 2015
    Assignee: Menlo Systems GmbH
    Inventors: Ronald Holzwarth, Marc Fischer, Michael Mei
  • Patent number: 8942567
    Abstract: An optical receiving device includes multiple input ports to which light is input; multiple amplifiers that are arrayed and provided corresponding to the input ports, respectively, each of the amplifiers amplifying and outputting light input from a corresponding input port among of the input ports; a photo diode that converts light into an electrical signal; and a lens that inputs to the photo diode light output from the amplifiers.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: January 27, 2015
    Assignee: Fujitsu Limited
    Inventors: Goji Nakagawa, Susumu Kinoshita