Attenuator Patents (Class 385/140)
  • Patent number: 12009117
    Abstract: A system for the transmission of optical and electrical signals has two optical connectors wherein each of the connectors have a metal ferrule electrically connected to a conductor. The system also has an adapter wherein having the connectors optically connected to each other via the adapter also electrically connects the conductor of optical connectors via the metal ferrules of the first and second optical connectors. Alternatively, a system can have first and second optical connectors wherein each of the connectors have an outer housing with a conductive interior surface. This system also has an adapter with at least one metal split sleeve wherein having the connectors optically connected to each other via the adapter also electrically connects optical connectors via the conductive interior surface of the outer housing of each optical connector contacting the at least one metal split sleeve.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: June 11, 2024
    Assignee: Panduit Corp.
    Inventors: Yu Huang, Jose M. Castro, Bulent Kose
  • Patent number: 11947170
    Abstract: A connector system includes: a first ferrule configured to hold end parts of multi-core fibers; a second ferrule configured to hold end parts of single-core fibers; and an optical connection member. The optical connection member is arranged between the first and the second ferrule, and includes an optical system configured to optically connect respective cores included in the multi-core fibers and the single-core fibers. A guide pin is formed on one of the first and the second ferrule, and a guide hole is formed in another of the first and the second ferrule. A through hole is formed in the optical connection member, and the first ferrule, the optical connection member, and the second ferrule can be aligned by fitting the guide pin in the guide hole through the through hole.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: April 2, 2024
    Assignee: Fujikura Ltd.
    Inventors: Hirotaka Asada, Kansei Shindo, Kunihiko Fujiwara
  • Patent number: 11903563
    Abstract: Offset illumination using multiple emitters in a fluorescence imaging system is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The emitter comprises a first emitter and a second emitter for emitting different wavelengths of electromagnetic radiation. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 795 nm and/or from about 795 nm to about 815 nm.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: February 20, 2024
    Assignee: Cilag GmbH International
    Inventors: Joshua D. Talbert, Donald M. Wichern
  • Patent number: 11815780
    Abstract: An integrated Mach-Zehnder Interferometer comprising: an upper arm and a lower arm; and a differential thermo-optic phase shifter comprising a first heating element and a second heating element collocated with the upper arm and the lower arm, respectively, the first heating element having a first resistance and the second heating element having a second resistance, an upper pad electrically connected to the first heating element, the upper pad being adapted to receive a first voltage, a lower pad electrically connected to the second heating element, the lower pad being adapted to receive a second voltage, and a common pad electrically connected to the first heating element and the second heating element, the common pad being adapted to receive a third voltage; wherein, when the first, the second, and the third voltages are applied to the upper, the lower, and the common pads, respectively, a phase shift difference is thermally produced.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: November 14, 2023
    Inventors: Tongqing Wang, Xingyu Zhang, Dawei Zheng
  • Patent number: 11754788
    Abstract: A multi-channel mode converter includes a lens array having a first lens and a second lens, a glass block coupled to the lens array, and a fiber assembly unit (FAU) array coupled to the glass block, the FAU array including a first fiber corresponding to the first lens, and a second fiber corresponding to the second lens. The FAU array provides for a corresponding number of fibers and lenses such that a specific single fiber corresponds to a specific single lens, there being a 1:1 relationship between fibers and lenses. A mode converter system comprises: a lens array comprising: a first silicon lens configured to convert a first mode between a first waveguide and a first fiber, and a second silicon lens configured to convert a second mode between a second waveguide and a second fiber, and a glass block coupled to the lens array and configured to provide an optical path for a first light beam corresponding to the first silicon lens and a second light beam corresponding to the second silicon lens.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: September 12, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Rongsheng Miao, Xueyan Zheng, Xiao Andy Shen, Yu Sheng Bai
  • Patent number: 11747627
    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 12, 2022
    Date of Patent: September 5, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Nicole Elizabeth Samee, John Graham Macnamara, Christopher M. Harrises, Brian T. Schowengerdt, Rony Abovitz, Mark Baerenrodt
  • Patent number: 11733462
    Abstract: The present disclosure provides a MEMS-based variable optical attenuator (VOA) array, sequentially including an optical fiber array, a micro-lens array, and a MEMS-based micro-reflector array to form a VOA array having several optical attenuation units. The MEMS-based micro-reflectors can change the propagation direction of a beam, causing a misalignment coupling loss to the beam and thereby achieving optical attenuation, with a broad range of dynamic attenuation, low polarization dependent loss and wavelength dependent loss, good repeatability, short response time (at the millisecond level), etc. Arrayed device elements are used as assembly units of the present disclosure, and the assembly of arrayed elements facilitates tuning in batches. Accordingly, automation levels are improved, and the production costs are reduced.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: August 22, 2023
    Assignee: II-VI DELAWARE, INC.
    Inventors: Chunyan Jia, Peng Xiao, Zhihua Song, Yingying Liu, Jin'E Hua
  • Patent number: 11442225
    Abstract: With a wavelength conversion device based on a nonlinear optical effect, when arrayed waveguides including an intended nonlinear waveguide are fabricated, unwanted slab waveguides are inevitably formed. The slab waveguides can cause an erroneous measurement in the selection of a waveguide having desired characteristics from the arrayed waveguides. The erroneous measurement can lead to redoing steps for fabricating the wavelength conversion device and a decrease in the yield and inhibit the evaluation of the characteristics in selection of the waveguide and the subsequent fabrication of the wavelength conversion device from being efficiently performed. A wavelength conversion device according to the present invention includes a plurality of waveguides formed on a substrate, and a plurality of slab waveguides that are arranged substantially in parallel with and spaced apart from the plurality of waveguides, and a guided light attenuator is formed in each of the slab waveguides.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: September 13, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takahiro Kashiwazaki, Ryoichi Kasahara, Osamu Tadanaga, Takeshi Umeki, Koji Embutsu, Takushi Kazama
  • Patent number: 11431380
    Abstract: An apparatus for an attenuation adjustment tool, the attenuation adjustment tool includes a body with an adjustment arm positioned at a first side of the body, where an actuator is configured to extend and retract the adjustment arm. The attenuation adjustment tool further includes an input port and an output port positioned at the first side of the body, wherein an input prong and an output prong of a wrap plug are each respectively insertable into the input port and the output port. The attenuation adjustment tool further includes the adjustment arm configurable to engage with a mechanism on the wrap plug, wherein the mechanism is configurable to alter a shape of a signal cable in the wrap plug.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: August 30, 2022
    Assignee: International Business Machines Corporation
    Inventors: John S. Werner, Faezeh Gholami, Noah Singer, John Torok, Philip A. Sciuto, Arkadiy O. Tsfasman
  • Patent number: 11411643
    Abstract: A photonic integrated circuit (PIC) includes an optical transmitter and an optical receiver. An optical loopback is coupled to the optical transmitter and to the optical receiver and is configurable to provide in a communications mode a transmitted optical signal from the optical transmitter to an optical output node and to provide a received optical signal on an optical input node to the optical receiver. The optical loopback is further configurable in a loopback testing mode to optically isolate the received optical signal on the optical input node from the optical receiver and to provide the transmitted optical signal from the optical transmitter to the optical receiver. A PIC including the optical loopback enables improved optical loopback testing of optical ports that will be present on network devices including co-packaged optics.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: August 9, 2022
    Assignee: ARISTA NETWORKS, INC.
    Inventor: Hacene Chaouch
  • Patent number: 11366054
    Abstract: An optoacoustic sensor includes a liquid crystal (LC) cell formed between top and bottom plates of transparent material. A transverse grating formed across the LC cell that forms an optical transmission bandgap. A CL is aligned to form a spring-like, tunable Bragg grating that is naturally responsive to external agitations providing a spectral transition regime, or edge, in the optical transmission bandgap of the transverse grating that respond to broadband acoustic waves. The optoacoustic sensor includes a narrowband light source that is oriented to transmit light through the top plate, the LC cell, and the bottom plate. The optoacoustic sensor includes an optoacoustic spectrometer that is oriented below the bottom plate to receive the transmitted light and to record a time-domain modulation of transmission intensity at a selected one of a falling and rising edge of the transmission bandgap for detecting analog acoustic vibration.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: June 21, 2022
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Hengky Chandrahalim, Michael Dela Cruz
  • Patent number: 11333835
    Abstract: A ferrule mold having a reverse-image of a through-hole array for optical fibers is formed. A non-polymeric ferrule material is deposited in the reverse-image mold, followed by removing the mold to create a multi-fiber connector ferrule having at least two fiber through-holes. An optical fiber is inserted in each through-hole until each fiber endface is positioned approximately even with a connection surface of the ferrule. A fiber recess for each of the optical fibers is formed such that each fiber is recessed from the multi-fiber ferrule connection surface by a distance of at least 0.1 micron. The recess may be formed by differential polishing of the non-polymeric ferrule and endfaces of the optical fibers. Alternatively, a layer of spacer material may be deposited over the multi-fiber ferrule connection surface. An antireflection coating is deposited over the ends of the recessed fibers.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: May 17, 2022
    Assignee: Arrayed Fiberoptics Corporation
    Inventor: Benjamin B. Jian
  • Patent number: 11329727
    Abstract: A device for transmitting a signal according to some embodiments of the present disclosure relates to a device for transmitting a signal using a hybrid waveform. The device may include a modulator configured to modulate an input signal and a signal transmitter configured to transmit the modulated final transmission signal through an LED light source, wherein the modulator is configured to modulate first information into a pulse signal based on frequency shift keying (FSK), and modulate second information into an orthogonal frequency division multiplexing (OFDM) signal, wherein the first information and the second information are different from each other and mix the pulse signal and the OFDM signal into one waveform to generate the final transmission signal.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: May 10, 2022
    Assignee: KOOKMIN UNIV. IND. ACADEMY COOPERATION FOUNDATION
    Inventors: Yeong Min Jang, Ngoc Huy Nguyen
  • Patent number: 11212010
    Abstract: An RF imaging receiver using photonic spatial beam processing is provided with an optical beam steerer that acts on the individual modulated optical signals to induce individual phase delays that produce a phase delay with a linear term, and possibly spherical or aspherical terms, across a two-dimensional wavefront of the composite optical signal to steer the composite optical signal and move the location of the spot on the optical detector array. The optical beam steerer may change the path length or a refractive index for each of the modulated optical signals to induce the requisite phase delays. The optical beam steerer may be implemented, for example, with a Risley prism or liquid crystal or MEMs spatial light modulator.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: December 28, 2021
    Assignee: Raytheon Company
    Inventors: Gerald P. Uyeno, Sean D. Keller, Benn Gleason
  • Patent number: 11187963
    Abstract: According to various embodiments, an all-optical thresholder device is disclosed. The all-optical thresholder device includes a Mach-Zehnder interferometer (MZI) coupled to a Mach-Zehnder coupler (MZC). The MZI includes at least one microring resonator (MRR) and a first tunable element, where the MRR further includes a second tunable element. The MZC includes a third tunable element. The first, second, and third tunable elements are configured to control biases of the all-optical thresholder device to achieve a desired power transfer function.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: November 30, 2021
    Assignee: THE TRUSTEES OF PRINCETON UNIVERSITY
    Inventors: Chaoran Huang, Thomas Ferreira De Lima, Alexander Tait, Siamak Abbaslou, Aashu Jha, Bhavin Shastri, Paul R. Prucnal, Mitchell A. Nahmias, Hsuan-Tung Peng
  • Patent number: 11163105
    Abstract: A sensor system includes an optical fiber. A set of wavelength shift sensors are inscribed on the optical fiber. The set includes at least one first wavelength shift sensor configured to reflect a first wavelength band of input light as a first optical output signal. The first wavelength shift sensor has a first value of an optical characteristic that modifies intensity of the first optical output signal. At least one second wavelength shift sensor is configured to reflect a second wavelength band of input light as a second optical output signal. The second wavelength shift sensor has a second value of the optical characteristic that modifies intensity of the second optical output signal, wherein the second value is different from the first value.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: November 2, 2021
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Kyle Arakaki, Peter Kiesel, Ajay Raghavan
  • Patent number: 11064185
    Abstract: The present disclosure discloses a system, a method and a device for generating depth image. The system includes an illumination source, an optical system, a control device, and at least one set of a dynamic aperture and an image sensor, wherein the dynamic aperture is configured to dynamically change a light transmittance, an exposure start time, and an exposure end time under a control of the control device. The control device is configured to acquire a first photo and a second photo, and generate a depth image of the target scene according to the first photo, the first shooting configuration information, the second photo, and the second shooting configuration information.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: July 13, 2021
    Assignee: Rayz Technologies Co. Ltd.
    Inventors: Detao Du, Ruxin Chen
  • Patent number: 10940563
    Abstract: A simultaneous laser welding apparatus of a vehicle light comprising a placement support for a container body and a lenticular body of a vehicle light welded together at reciprocal perimeter profiles, a plurality of laser sources, a plurality of optical fibres associated with the laser sources at input ends for transmitting the light beams, a fibre-holder support device for blocking output ends of the optical fibres in predetermined positions, spaced apart by a pitch, a light guide provided with at least one seat which receives the light beams coming from the output ends of the optical fibres, to a light output wall which sends the light beams towards the welding interface. A single optical fibre is associated with each laser source.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: March 9, 2021
    Assignee: MARELLI AUTOMOTIVE LIGHTING ITALY S.P.A.
    Inventors: Silvano Morassi, Igor Di Vora, Melchiade Agostini, Domenico Ferigo, Marco Valle, Cristian Segalla
  • 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