Electro-optic Patents (Class 359/245)
  • Patent number: 10777761
    Abstract: A polymer solar cell includes an anode electrode, a photoactive layer, and a cathode electrode stacked on each other in that order. The photoactive layer includes a polymer layer and a plurality of carbon nanotubes dispersed in the polymer layer. Each of the plurality of carbon nanotubes includes a first carbon nanotube portion and a second carbon nanotube portion. The first carbon nanotube portion is embedded in the polymer layer, and the second carbon nanotube portion is exposed out of the polymer layer and directly contacts the cathode electrode.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: September 15, 2020
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wen Ning, Peng Liu, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 10777639
    Abstract: Disclosed are a two-dimensional semiconductor in which an energy band gap changes with thickness, a manufacturing method therefor, and a semiconductor device comprising the same. A two-dimensional semiconductor according to an embodiment comprises: a first layer having a first thickness; and a second layer having a second thickness, wherein the first thickness and the second thickness are different from each other, the first layer forms a first junction with a first electrode, and the second layer forms a second junction with a second electrode.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: September 15, 2020
    Assignees: KONKUK UNIVERSITY INDUSTRIAL COOPERATION CORP, Korea Advanced Institute of Science and Technology
    Inventors: Hyun Jong Chung, Hyun Cheol Kim, Han Byeol Lee, Hak Seong Kim, Sung Yool Choi
  • Patent number: 10766421
    Abstract: An electro-optic mirror reflective element for a rearview mirror assembly for a vehicle includes a front substrate and a rear substrate. A surface of the front substrate and a surface of the rear substrate oppose one another and are spaced apart by a perimeter seal, with an electro-optic medium disposed between the surfaces and bounded by the perimeter seal. A transparent electrically conductive coating is established at the surface of the front substrate, and a specularly reflective mirror reflector is established at the surface of the rear substrate. The specularly reflective mirror reflector includes a stack of thin film layers having (i) an environmentally stable electrically conductive metallic reflecting thin film layer including chromium, (ii) an environmentally vulnerable electrically conductive metallic reflecting thin film layer and (iii) a transparent electrically conductive thin film layer including aluminum doped zinc oxide.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: September 8, 2020
    Assignee: DONNELLY CORPORATION
    Inventors: Michael J. Baur, Ian A. McCabe, Hamid Habibi, Niall R. Lynam
  • Patent number: 10761383
    Abstract: A phase modulator includes; a first liquid crystal element and a second liquid crystal element, wherein: in the state in which no voltage is applied to the first liquid crystal element nor to the second liquid crystal element, both of the first liquid crystal material and the second liquid crystal material show optical isotropy; and in the state in which a predetermined range of voltage is applied both to the first liquid crystal element and to the second liquid crystal element, the first liquid crystal material shows optically uniaxial anisotropy with a first ordinary refractive index and a first extraordinary refractive index which is larger than the first ordinary refractive index, and the second liquid crystal material shows optically uniaxial anisotropy with a second ordinary refractive index and a second extraordinary refractive index which is smaller than the second ordinary refractive index.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: September 1, 2020
    Assignees: ESSILOR INTERNATIONAL, NIKON CORPORATION
    Inventor: Estelle Netter
  • Patent number: 10747085
    Abstract: An optical switch device includes a first semiconductor structure configured to operate as a first waveguide and a second semiconductor structure configured to operate as a second waveguide. The second semiconductor structure is located above or below the first semiconductor structure and separated from the first semiconductor structure. The second semiconductor structure includes a first portion having a first width and a second portion having a width different from the first width and located on the first portion. The first portion is located between a first doped region and a second doped region.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: August 18, 2020
    Assignee: PsiQuantum Corp.
    Inventors: Mihai Vidrighin, Nikhil Kumar, Gary Gibson
  • Patent number: 10747030
    Abstract: Structures for an electro-optic modulator and methods of fabricating a structure for an electro-optic modulator. An electro-optic modulator is positioned proximate to a section of a waveguide core. The electro-optic modulator includes an active layer and a confinement layer. The active layer is composed of a first material, the confinement layer is composed of a second material with a different composition than the first material, the first material has a refractive index that is variable under an applied bias voltage, and the second material has a permittivity with an imaginary part that ranges from 0 to about 15.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: August 18, 2020
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Yusheng Bian, Ajey Poovannummoottil Jacob
  • Patent number: 10739626
    Abstract: Provided are devices and methods capable of electronically controlling and varying aperture diameters or diffracting light. The method provides a solid-state device made up of a transparent bottom electrode (TBE), a layer of liquid crystal (LC) material overlying the TBE, and a field of selectively engageable transparent top electrodes (TTEs). Light incident to the TTEs is accepted and a voltage differential between one or more selected TTEs and the TBE. As a result, an optically transparent region is created in the LC material interposed between the selected TTEs and the TBE. Depending on the arrangement of the TTEs and their size respective to the wavelength of the incident light, the light is either transmitted through an aperture or diffracted.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: August 11, 2020
    Assignee: UltRes FP, LLC
    Inventor: Osman Ersed Akcasu
  • Patent number: 10735865
    Abstract: This disclosure provides systems, methods and apparatus for microspeaker devices. In one aspect, a microspeaker element may include a deformable dielectric membrane that spans a speaker cavity. The deformable dielectric membrane can include a piezoactuator and a dielectric layer. Upon application of a driving signal to the piezoactuator, the dielectric layer can deflect, producing sound. In some implementations, an array of microspeaker elements can be encapsulated between a glass substrate and a cover glass. Sound generated by the microspeaker elements can be emitted through a speaker grill formed in the cover glass.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: August 4, 2020
    Assignee: SnapTrack, Inc.
    Inventors: Philip Jason Stephanou, David William Burns, Ravindra V. Shenoy
  • Patent number: 10734538
    Abstract: A photovoltaic apparatus (200) is provided including a back sheet (210) and a photovoltaic device (100) disposed over the back sheet. The photovoltaic device includes an array of photovoltaic cells (101-104) extending in a first direction; and a plurality of serial interconnects (191) having a length that extends in a second direction, wherein each serial interconnect is disposed between and electrically connects consecutive photovoltaic cells of the array. The photovoltaic apparatus further includes a front sheet (250) disposed over the photovoltaic device, the front sheet having a plurality of structures (220), wherein each structure has one or more edges (221) aligned with one of the serial interconnects.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: August 4, 2020
    Assignee: FLISOM AG
    Inventors: Louis Schar, Thomas Netter
  • Patent number: 10720264
    Abstract: The light transmitting conductive film includes a light transmitting substrate and a non-crystal light transmitting conductive layer, wherein the conditions (1) to (3) below are satisfied when the non-crystal light transmitting conductive layer has a carrier density of Xa×1019(/cm3) and a hole mobility of Ya (cm2/V·s); a heated light transmitting conductive layer has a carrier density of Xc×1019(/cm3) and a hole mobility of Yc (cm2/V·s), wherein the heated light transmitting conductive layer is the non-crystal light transmitting conductive layer after going through heating; and a moving distance L is {(Xc?Xa)2+(Yc?Ya)2}1/2: (1) Xa?Xc (2) Ya?Yc, and (3) the moving distance L is 1.0 or more and 45.0 or less.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: July 21, 2020
    Assignee: NITTO DENKO CORPORATION
    Inventors: Nozomi Fujino, Tomotake Nashiki
  • Patent number: 10698289
    Abstract: An optical modulator having a substrate having an electro-optic effect, an optical waveguide formed in the substrate, and a signal electrode and ground electrodes formed on the substrate so as to interpose the optical waveguide, in which the signal electrode and the ground electrodes respectively have a plurality of electrode layers, and an interval between the signal electrode and the ground electrode is larger than a mode field diameter of the optical waveguide in a first layer of the electrode layers closest to the substrate and is smaller than the interval in the first layer of the electrode layers in at least any one of second and upper layers of the electrode layers.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: June 30, 2020
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Kenta Oisha, Norikazu Miyazaki
  • Patent number: 10690850
    Abstract: A method and apparatus for simultaneously modulating at least two distinct characteristics of an optical carrier propagating in an optical waveguide with at least two electrical signals includes transmitting an optical beam that includes the optical carrier into an optical waveguide defined in electro-optic material, and applying the at least two electrical signals at the same time to generate an electric field in the optical waveguide. The instantaneous predominant orientation of the electric field in the optical waveguide generated by the applied at least two electrical signals depends on the relative instantaneous values of the applied electrical signals. The at least two distinct characteristics of the optical carrier propagating in the optical waveguide are simultaneously and independently modulated depending on the predominant orientation of the electric field in the optical waveguide as a result of the application of the at least two electrical signals.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: June 23, 2020
    Assignee: Phase Sensitive Innovations, Inc.
    Inventors: Janusz Murakowski, Timothy Creazzo
  • Patent number: 10677722
    Abstract: Mid-infrared photothermal heterodyne imaging (MIR-PHI) techniques described herein overcome the diffraction limit of traditional MIR imaging and uses visible photodiodes as detectors. MIR-PHI experiments are shown that achieve high sensitivity, sub-diffraction limit spatial resolution, and high acquisition speed. Sensitive, affordable, and widely applicable, photothermal imaging techniques described herein can serve as a useful imaging tool for biological systems and other submicron-scale applications.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: June 9, 2020
    Assignee: University of Notre Dame du Lac
    Inventors: Zhongming Li, Gregory Hartland, Masaru Ken Kuno
  • Patent number: 10661716
    Abstract: An electrically variable reflectance mirror reflective element includes front and rear glass substrates with an electrochromic medium disposed therebetween and bounded by a perimeter seal. A perimeter layer is disposed at a second surface of the front substrate proximate a perimeter edge of the front substrate. The perimeter layer conceals the perimeter seal from view by a driver of a vehicle. No part of the rear substrate extends beyond any part of the front substrate. At least a portion of the mirror reflector disposed at at least a portion of the third surface of the rear substrate extends from under the perimeter seal outward towards at least a portion of the perimeter edge of the rear substrate. The mirror reflector includes a stack of thin films that includes at least a first metal thin film and a second metal thin film.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: May 26, 2020
    Assignee: DONNELLY CORPORATION
    Inventors: Ian A. McCabe, Desaraju V. Varaprasad, Hamid Habibi, Niall R. Lynam
  • Patent number: 10654343
    Abstract: A wireless power transfer system for a vehicle door glass may include a power transmitter including a first converter converting DC power from a battery into AC power, a transmitting coil wirelessly transmitting the AC power received from the first converter, and a transmitter controller controlling a power level to be output from the first converter; and a power receiver including a receiving coil wirelessly receiving the AC power from the transmitting coil, a second converter and a third converter connected to the receiving coil, and a receiver controller controlling a power level to be output from the second converter and the third converter, wherein the power transmitter is mounted on a vehicle door, and the power receiver is mounted on a door glass.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: May 19, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Omron Automotive Electronic Korea Co., Ltd.
    Inventors: Kwan Hui Kang, Sang Hoon Gweon, Joon Koo Hwang, Dong Hee Lee
  • Patent number: 10649246
    Abstract: A dielectric thin film-applied substrate that suppresses occurrence of cracks when the film thickness of the lithium niobate film is equal to or larger than 1 ?m. The dielectric thin film-applied substrate includes a single crystal substrate and a dielectric thin film made of c-axis oriented lithium niobate epitaxially formed on a main surface of the single crystal substrate. The dielectric thin film has a twin crystal structure including first and second crystals 180° apart, centered on the c-axis. In pole figure measurement by X-ray diffraction, the ratio between a first diffraction intensity corresponding to the first crystal and a second diffraction intensity corresponding to the second crystal is equal to or higher than 0.5 and equal to or lower than 2.0, which alleviates distortions accumulated inside the lithium niobate film and supresses occurrences of cracks accompanying increases in the film thickness.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: May 12, 2020
    Assignee: TDK CORPORATION
    Inventors: Kenji Sasaki, Shinji Iwatsuka
  • Patent number: 10627572
    Abstract: Provided is an optical waveguide element having a reduced optical loss, a lower driving voltage, and a reduced size. A rib waveguide core of an optical waveguide includes a first core region and a second core region which constitute a PN junction and which are provided so as to overlap each other in a horizontal direction. A depletion layer is formed between the first core region and the second core region. The depletion layer extends from a rib region to both of two slab regions. The depletion layer is located so as to be vertically lower in the slab regions than in the rib region.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: April 21, 2020
    Assignee: FUJIKURA LTD.
    Inventor: Kensuke Ogawa
  • Patent number: 10608741
    Abstract: Through-the-Air Link Optical Component is a low Size, Weight, and Power optical communications device that 1) acquires and maintains a broad band communications link between two platforms in line of sight with one another, 2) measures azimuth and elevation angle relative to each platform reference from one TALOC to the communicating TALOC and vice-versa, 3) measures distance between communicating TALOC units, and 4) sees through atmospheric disturbances such as clouds and fog. These remarkable functions open the door to several important derivative capabilities, such as determining absolute positions of all platforms in a community and formation of platform community into a phase array antenna.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: March 31, 2020
    Assignee: 4S-SILVERSWORD SOFTWARE AND SERVICES, LLC
    Inventors: William Robert Allen Ziegler, Ronald H. Smith
  • Patent number: 10608742
    Abstract: Embodiments of the present disclosure disclose a signal modulation and demodulation method and system, and an apparatus, to eliminate SSBI generated in a modulation and demodulation method. The method includes: performing, by a transmit end, PAM encoding on an input signal to obtain a PAM signal; electrically modulating, by the transmit end, the PAM signal by using a first filter; converting, by the transmit end, the electrically modulated PAM signal into an analog signal; optically modulating, by the transmit end, the analog signal by using an electro-optic modulator to obtain an optical signal, and sending the optical signal. Another method includes receiving, by a receive end, the optical signal, and converting the optical signal into an electrical signal; electrically demodulating, by the receive end, the electrical signal by using a second filter; and performing PAM decoding, by the receive end, the electrically demodulated electrical signal to obtain a restored input signal.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: March 31, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Tianjian Zuo, Liang Zhang, Enbo Zhou
  • Patent number: 10600830
    Abstract: A sensor package structure includes a substrate, a sensor chip disposed on the substrate, a plurality of wires electrically connected to the substrate and the sensor chip, a transparent layer facing the sensor chip, a support disposed on the substrate, and a packaging compound disposed on the substrate and covering side edges of the support and the transparent layer. A part of each wire is embedded in the support. A height from the upper surface of the substrate to the top of the support is larger than a height from the upper surface of the substrate to the top of any of the wires. The bottom surface of the transparent layer has a central region facing the sensor chip and a ring-shaped supporting region surrounded by the central region. The support is arranged outside the sensor chip and abuts against the supporting region.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: March 24, 2020
    Assignee: KINGPAK TECHNOLOGY INC.
    Inventors: Jian-Ru Chen, Jo-Wei Yang, Li-Chun Hung, Hsiu-Wen Tu, Chung-Hsien Hsin
  • Patent number: 10590220
    Abstract: The present disclosure provides for new photoalignment (co)polymer materials which demonstrate improved adhesion to a substrate. The (co)polymeric structure includes at least one photochemically active chromophore and at least one adhesion promoter group. Articles of manufacture, optical elements, ophthalmic elements and liquid crystal cells which include at least one photoalignment layer made from the photoalignment (co)polymer materials and methods for formation are also disclosed.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: March 17, 2020
    Assignee: Transitions Optical, Inc.
    Inventors: Gobinda Saha, Anil Kumar
  • Patent number: 10571723
    Abstract: Described herein are methods, systems, and apparatuses to utilize an electro-optic modulator including one or more heating elements. The modulator can utilize one or more heating elements to control an absorption or phase shift of the modulated optical signal. At least the active region of the modulator and the one or more heating elements of the modulator are included in a thermal isolation region comprising a low thermal conductivity to thermally isolate the active region and the one or more heating elements from a substrate of the PIC.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: February 25, 2020
    Assignee: Aurrion, Inc.
    Inventors: Robert Silvio Guzzon, Erik Norberg, Jonathan Edgar Roth
  • Patent number: 10567688
    Abstract: An image sensor, imaging device, and method are provided. The image sensor includes a pixel array including an active area in which plural active pixels are located, and a dummy area in which plural dummy pixels are located, and a test element group (TEG) which is located in the dummy area and on which a test light-shielding pattern, different from a light-shielding pattern formed on the active area, is formed to detect a degree of misalignment between the light-shielding pattern and the active area.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: February 18, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-taek Lee, Yun-jeong Kim, Sun-yong Park, Goon-suk Jang, Jeong-seob Hong
  • Patent number: 10567023
    Abstract: A sensing device has a detection portion having a plate shape and including a first set of one or more indication sensors and a securing portion extending from the detection portion. The securing portion secures the device to a piece of electronic equipment having a plate shape, a back and a front, the front including a display with a second set of one or more indication sensors. The securing portion is sized and shaped to fit between the back of the piece of electronic equipment and a base part of a protective cover to secure the device to the piece of electronic equipment.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: February 18, 2020
    Assignee: Wacom Co., Ltd.
    Inventors: Hiroshi Miyazawa, Toshihiko Horie, Nobutaka Ide
  • Patent number: 10551641
    Abstract: An optical modulator device using three-terminal driver interface. The modulator device can include a driver circuit, three transmission lines, a pair of diodes, and a diode termination resistor. This device can have the diode termination resistor coupled to the first and third transmission lines. The three transmission lines can be coupled to the two diodes. The first diode can be coupled to the first and second transmission line and the second diode can be coupled to the second and third transmission lines. The second transmission line presents a relatively low impedance to the asymmetric current that reduces the current to levels that do not degrade the optical waveforms at either diode. The impedance appears in parallel with the high-frequency low-impedance synthesized by the differential drive interacting with the symmetric components of the diode load. This configuration results in a fast, well-controlled transient response.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: February 4, 2020
    Assignee: INPHI CORPORATION
    Inventor: Carl Pobanz
  • Patent number: 10547158
    Abstract: An optical communication system, device, and method are disclosed. An illustrative optical communication system is disclosed to include a carrier Integrated Circuit (IC) chip having an amplifier circuit, a bias plane, and a ground plane. The amplifier circuit, bias plane, and the ground plane may each operate at or above a nominal voltage of zero volts. A laser diode may be integrated with an electro-absorption modulator into a single IC chip, where the laser diode is mounted on the carrier IC chip and is electrically connected with the amplifier circuit of the carrier IC chip through a bond wire.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: January 28, 2020
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Laurence McColloch, David W. Dolfi, Venkatesh Seetharam, Alexander Robertson, Georgios Asmanis, Michael Allen Robinson
  • Patent number: 10545389
    Abstract: An electrophoretic display panel including a first electrode layer, a second electrode layer, an electrophoretic display layer and a low surface energy coating layer is provided. The first electrode layer has a first surface and a second surface corresponding to the first surface. The electrophoretic display layer is disposed between the first electrode layer and the second electrode layer. The electrophoretic display layer has a third surface. The third surface of the electrophoretic display layer and the second surface of the first electrode layer have a gap therebetween. A gap distance of the gap is changed with a press operation. The low surface energy coating layer is coated on at least one of the second surface of the first electrode layer and the third surface of the electrophoretic display layer.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 28, 2020
    Assignee: E Ink Holdings Inc.
    Inventors: Hsiao-Lung Cheng, Pin-Cheng Chiu, Ya-Mei Wang, Chi-Mao Hung
  • Patent number: 10534208
    Abstract: A display device according to one aspect of the present invention includes: a display unit that displays an image including a plurality of viewpoint images; and a separator that includes a plurality of first electrodes that form, at a first pitch, a plurality of first unit separators that separate the plurality of viewpoint images, a plurality of second electrodes that form a plurality of second unit separators at a second pitch which is different from the first pitch, and a liquid crystal layer. The plurality of first electrodes and the plurality of second electrodes are opposed to each other with the liquid crystal layer interposed therebetween.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: January 14, 2020
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Yingbao Yang, Daichi Suzuki
  • Patent number: 10529741
    Abstract: A lightweight flexible light-emitting device which is able to possess a curved display portion and display a full color image with high resolution and the manufacturing process thereof are disclosed. The light-emitting device comprises: a plastic substrate; an insulating layer with an adhesive interposed therebetween; a thin film transistor over the insulating layer; a protective insulating film over the thin film transistor; a color filter over the protective insulating film; an interlayer insulating film over the color filter; and a white-emissive light-emitting element formed over the interlayer insulating film and being electrically connected to the thin film transistor.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: January 7, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Kaoru Hatano
  • Patent number: 10527875
    Abstract: An optical device includes a first electrode, a second electrode, a refractive index adjustment layer, and a textured layer. The first electrode is light-transmissive. The second electrode is light-transmissive and electrically paired with the first electrode. The refractive index adjustment layer is provided between the first electrode and the second electrode and has a refractive index that is adjustable in an arbitrary wavelength band from the visible light range to the near-infrared range. The textured layer gives the refractive index adjustment layer an uneven surface and is in the form of a film. The refractive index adjustment layer is variable between a transparent state and a state of distributing incident light.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: January 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yuko Suzuka, Masuyuki Ota
  • Patent number: 10510915
    Abstract: The porous silicon nanowire photovoltaic cell includes a first electrode, an n-type silicon layer, and a second electrode, which is formed from a transparent electrode with at least one metal contact. An array of porous silicon nanowires is sandwiched between the second electrode and the n-type silicon layer. Each of the porous silicon nanowires is formed from a porous n-type silicon core coated with a layer of p-type silicon. Empty spaces between the porous silicon nanowires of the array may be filled with indium tin oxide, thus forming a photoactive region formed from the array of porous silicon nanowires embedded in indium tin oxide. An up-conversion layer is sandwiched between the first electrode and the n-type silicon layer. Any suitable type of up-conversion material may be used for the up-conversion layer, such as NaYR4:Er—Yb or the like. Alternatively, the up-conversion layer may be replaced by a down-conversion layer.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: December 17, 2019
    Assignee: United Arab Emirates University
    Inventor: Adel Najar
  • Patent number: 10509295
    Abstract: An optical waveguide modulator with automatic bias control is disclosed. A dither signal is applied to the modulator bias and its signature detected in light tapped from an output of the modulator using a phase sensitive dither detector such as a lock-in amplifier. The detected signal is processed using pre-recorded information defining the direction of the detected signal change relative to a change in the modulator bias, and the bias is adjusted in the direction determined using the information. An IQ bias of a quadrature modulator is controlled by dithering bias settings of two inner modulators at different dither frequencies, and detecting an oscillation at a sum frequency.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: December 17, 2019
    Assignee: Elenion Technologies, LLC
    Inventors: Kishore Padmaraju, Thomas Wetteland Baehr-Jones, Bernd-Harald Horst Jurgen Rohde, Robert Palmer, Matthew Akio Streshinsky, Marc Bohn, Torsten Wuth
  • Patent number: 10473998
    Abstract: An optical modulator includes: an optical modulation element which includes signal electrodes; lead pins; and a relay substrate in which a conductor pattern which electrically connects each of the lead pins and each of the signal electrodes to each other are formed, and the optical modulator is configured such that the amount of radiation of a high frequency at a connection portion between the conductor pattern and the signal electrode is increased compared to a portion other than the connection portion.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 12, 2019
    Assignee: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Toru Sugamata, Norikazu Miyazaki
  • Patent number: 10451951
    Abstract: A photonic modulator includes a first electro-optical waveguide, the first electro-optical waveguide having a first electro-optical waveguide side and a second electro-optical waveguide side opposite the first electro-optical waveguide side, a second electro-optical waveguide, the second electro-optical waveguide having a third electro-optical waveguide side and a fourth electro-optical waveguide side opposite the third electro-optical waveguide side, a first driven radio frequency electrode coupled to the first electro-optical waveguide side, a second driven radio frequency electrode coupled to the third electro-optical waveguide side, and a floating electrode coupled to the second electro-optical waveguide side and coupled to the fourth electro-optical waveguide side. The second electro-optical waveguide side and the third electro-optical waveguide side face each other and are spaced apart from one another.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: October 22, 2019
    Assignee: HRL Laboratories, LLC
    Inventors: Daniel Yap, Ryan G. Quarfoth, Troy D. Rockwood
  • Patent number: 10442359
    Abstract: An adjustable rearview mirror that is designed to quickly transition between transparent and reflective states. The apparatus is configured to resemble traditional rearview mirrors used in vehicles. The apparatus includes a window mount, a pivoting connection arm, and a user controlled mirror panel. The window mount connects the rearview mirror to the windshield of a vehicle. The pivoting connection arm enables a user to reposition the rearview mirror at will. The user controlled panel can be placed into a reflective or a transparent state based on user input. A user is able to gain a relatively unhindered view of traffic through a vehicle windshield.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: October 15, 2019
    Inventor: Peteris Alberts Cers
  • Patent number: 10447900
    Abstract: A camera module includes an image sensor, a flexible printed circuit with a first side affixed to a first side of the image sensor, a plurality of metallic leads affixed to a second side of the image sensor, and a lens assembly for directing light to the image sensor articulated to the image sensor by one or more of an overmolding attached to the leads and the flexible printed circuit. The first side of the image sensor is a side opposite the second side of the image sensor. The leads provide connection between the image sensor and leads in the flexible printed circuit.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: October 15, 2019
    Assignee: Apple Inc.
    Inventors: Annabelle Q. Yang, Howell John Chua Toc, Prakash Venkatesappa, Kolan Ravi Kanth
  • Patent number: 10437082
    Abstract: An electro-optic modulator (EOM) includes a first electro-optic (EO) material configured to receive light. The first EO material has an optic axis that is not parallel to the optical axis of the EOM. The optic axis indicates the direction through the first EO material along which a ray of light passing through the first EO material experiences no birefringence. The EOM also includes a polarization rotator that receives light output from the first EO material. The rotated light passes through a second EO material. The second EO material is positioned in the EOM such that its optic axis is not parallel to the optical axis of the EOM. The second EO material compensates for the birefringence and/or higher-order optical effects of the first material, thus reducing optical transmission errors of the EOM. The EOM may provide a wider field of view for imaging systems.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: October 8, 2019
    Assignee: TetraVue, Inc.
    Inventors: Paul S. Banks, Bodo Schmidt, Charles Stewart Tuvey, Christopher Allen Ebbers
  • Patent number: 10424733
    Abstract: An interconnect structure for on-chip information transfer, and a method for on-chip information transfer. The interconnect structure comprises a source configured for electrically generating plasmons; a detector configured for electrically detecting the generated plasmons; and a plasmonic waveguide coupled between the source and the detector.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: September 24, 2019
    Assignee: NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Wei Du, Tao Wang, Christian Albertus Nijhuis
  • Patent number: 10422989
    Abstract: A near-eye-display device includes a pair of fluid-filled lenses. The power of an inner lens of the pair of lenses can be set to position a focal plane for a virtual object from infinity to a predefined distance. The optical power of an outer lens of the pair of lenses is set to cancel out the optical power of the inner lens. A single actuator coupled to a reservoir pumps fluid into or out of the lenses to change their optical power. When the actuator is activated, fluid flows into one of the lenses in a pair and out of the other lens in the pair. The amount of fluid in each lens in a pair of lenses is thereby maintained to cancel out the optical power of the other lens. A single actuator can also be utilized to modify the power of two or more pairs of lenses.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: September 24, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: David Douglas Bohn
  • Patent number: 10419651
    Abstract: Disclosed is a liquid lens control circuit, which includes a liquid lens including a plurality of individual electrodes disposed in compartmental areas at the same level and a common electrode disposed at a different level from that of the individual electrodes, a voltage control circuit configured to supply voltages to the common electrode and at least one of the individual electrodes in the liquid lens in order to control an interface in the liquid lens, and a capacitance measuring circuit configured to calculate a capacitance between the common electrode and at least one of the individual electrodes in the liquid lens using a switched capacitor.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: September 17, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Young Seop Moon, Young Woon Kim
  • Patent number: 10409094
    Abstract: The object of the invention is a phase modulator including a modulation guide intended to guide die propagation of a light flow, said guide comprising a PN junction extending mainly along the main axis of propagation according to an oscillating continuous function. Advantageously, the oscillating continuous function is defined in such a way that the PN junction covers at least 50% of the light flow between the input and the output of the modulation guide. According to one possibility, the continuous function is sinusoidal. The object of the invention is also a switch and an intensity modulator each comprising a phase modulator.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: September 10, 2019
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Karim Hassan, Salim Boutami, Thomas Anfray
  • Patent number: 10411432
    Abstract: An optical module with a semiconductor element, which integrates a semiconductor laser diode with an electro-absorption modulator, mounted on a carrier; and an optical transmitter apparatus implementing the optical modules are disclosed. The carrier of the optical module has a back metal connected to the ground on the top thereof through a metal provided in a side surface of the carrier but electrically isolated from the chassis ground of the optical transmitter apparatus. The optical transmitter apparatus installs a plurality of the optical modules on a thermos-electric cooler (TEC) in a top plate thereof. The top plate is electrically isolated from the chassis ground.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: September 10, 2019
    Assignee: SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
    Inventor: Masahiro Hirayama
  • Patent number: 10401657
    Abstract: Apparatus, systems, or methods for mixed reality are disclosed herein. An apparatus may include an optical structure, a display structure, and a controller coupled to the optical structure and the display structure. The optical structure may be controlled by a first electrical signal to act as a transparent glass to present a natural view, or to act as a magnifying glass to present a virtual view. The display structure may be controlled by a second electrical signal to act as an opaque display or a transparent display. In addition, the controller may control the apparatus to operate in at least an AR mode to interlace the natural view and the virtual view. Other embodiments may also be described and claimed.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: September 3, 2019
    Assignee: Intel Corporation
    Inventors: Jun Jiang, Zhiming Zhuang
  • Patent number: 10382131
    Abstract: In some embodiments, an apparatus includes an optical transmitter module that can be electrically coupled to an electrical serializer/deserializer and a controller. The optical transmitter module can include an electrical detector that can receive an in-band signal. The electrical detector can send to the controller a first power error signal and a second power error signal based on the in-band signal. The controller can send a correction control signal to the electrical serializer/deserializer based on the first power error signal and the second power error signal such that the electrical serializer/deserializer sends a pre-emphasized signal to the optical transmitter module based on the correction control signal. In such embodiments, the first power error signal, the second power signal and the correction control signal are out-of-band signals.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: August 13, 2019
    Assignee: Juniper Networks, Inc.
    Inventors: Theodore J. Schmidt, Bo Zhang, Murat Arabaci, Roberto Marcoccia, Christian Malouin, Steven William Keck
  • Patent number: 10372011
    Abstract: Provided are a display apparatus and an electrically controlled light valve including a first substrate, a second substrate disposed opposite to the first substrate, a first transparent conductive layer disposed on the first substrate, a second transparent conductive layer disposed on the second substrate, a first liquid layer disposed between the first and the second transparent conductive layers, a second liquid layer disposed between the first and the second transparent conductive layers and reflective particles. The first and the second liquid layers are respectively adjacent to the first and the second transparent conductive layers. The first liquid layer includes a polar liquid. The second liquid layer includes a non-polar liquid. Each reflective particle has a conductive body and a surface modification layer covering the conductive body. When the electrically controlled light valve is switched to a light-transmission mode, the reflective particles are evenly dispersed in the first liquid layer.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: August 6, 2019
    Assignee: Chunghwa Picture Tubes, LTD.
    Inventors: Wen-Jiunn Hsieh, Cheng-Min Liao, Wen-Tse Tseng
  • Patent number: 10374719
    Abstract: Methods and systems for a photonic interposer are disclosed and may include receiving one or more continuous wave (CW) optical signals in a silicon photonic interposer from an external optical source, from an optical source assembly via optical fibers coupled to the silicon photonic interposer. A modulated optical signal may be generated by processing the received CW optical signals based on a first electrical signal received from the electronics die. A second electrical signal may be generated in the silicon photonic interposer based on the generated modulated optical signals, and may then be communicated to the electronics die via copper pillars. Optical signals may be communicated into and/or out of the silicon photonic interposer utilizing grating couplers. The electronics die may comprise one or more of: a processor core, a switch core, memory, or a router.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: August 6, 2019
    Assignee: LUXTERA, INC.
    Inventors: Mark Peterson, Greg Young, Peter De Dobbelaere
  • Patent number: 10359652
    Abstract: An E/O phase modulator may include a waveguide having an insulating substrate, a single-crystal silicon strip and a polysilicon strip of a same thickness and doped with opposite conductivity types above the insulating substrate, and an insulating interface layer between the single-crystal silicon strip and polysilicon strip. Each of the single-crystal silicon strip and polysilicon strip may be laterally continued by a respective extension, and a respective electrical contact coupled to each extension.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: July 23, 2019
    Assignee: STMICROELECTRONICS (CROLLES 2) SAS
    Inventors: Charles Baudot, Maurin Douix, Frederic Boeuf, Sébastien Cremer
  • Patent number: 10359630
    Abstract: A display for augmented reality (AR) includes an array of optical phased arrays (OPAs) integrated into a transparent substrate. The array of OPAs emit light encoded with four dimensional (4D) light field including 2D spatial coordinates and 2D directional coordinates to create an image of a virtual object on a retina of a viewer. By adjusting the emission directions of light beam emitted by individual OPAs in the display, the depth perception can be adjusted accordingly. The array of OPAs can also be encoded with holographic information, including intensity and phase distribution, of a virtual object to create the image of the virtual object on the retina. The AR display can further incorporate liquid crystal (LC) into the OPAs for modulating the amplitudes and relative phases of light emitted by the OPAs.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: July 23, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Manan Raval, Ami Yaacobi, Michael R. Watts, Jerry Zhou, Jie Sun, Christopher V. Poulton
  • Patent number: 10359329
    Abstract: A structure which detects the application point, intensity and area of the force and the pressure applied, along with the touch, and the forces applied in vertical direction to the sensor as well as the combined forces, which has reduced power consumption. The sensing system has an intermediate layer; a light source located under the intermediate layer; an image sensor located under the intermediate layer; a first fiber optic bundle; a second fiber optic bundle; a control unit which analyzes the image captured by the image sensor using image processing techniques; and a data link for data communication between the image sensor and the control unit.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: July 23, 2019
    Assignee: Sensobright Industries, LLC
    Inventor: Utku Buyuksahin
  • Patent number: 10359588
    Abstract: An optical waveguide device comprising: one or more photonic chips, the one or more photonic chips including: a first portion of a photonic chip comprising an array of first components, each of the first components having an optical input and an electrical output; and a second portion of a photonic chip comprising an array of second components, each of the second components configured to receive an electrical input; the optical waveguide device further comprising: an integrated circuit; the integrated circuit forming an electrical bridge between the electrical outputs of the first components and respective electrical inputs of the second components; wherein the integrated circuit is directly mounted onto the one or more photonic chips; and/or wherein the integrated circuit is located between the first portion of a photonic chip and the second portion of a photonic chip.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: July 23, 2019
    Assignee: Rockley Photonics Limited
    Inventors: Andrew Rickman, Guomin Yu, Aaron Zilkie, Haydn F. Jones