Patents Examined by Euncha P. Cherry
  • Patent number: 10557976
    Abstract: This disclosure generally relates to retroreflective articles and methods of making such articles.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: February 11, 2020
    Inventors: Kenneth L. Smith, Michael Benton Free, Bimal V. Thakkar, Raymond C. Chiu
  • Patent number: 10559395
    Abstract: Disclosed herein are laser scanning systems and methods of their use. In some embodiments, laser scanning systems can be used to ablatively or non-ablatively scan a surface of a material. Some embodiments include methods of scanning a multi-layer structure. Some embodiments include translating a focus-adjust optical system so as to vary laser beam diameter. Some embodiments make use of a 20-bit laser scanning system.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: February 11, 2020
    Assignee: nLIGHT, Inc.
    Inventor: Ken Gross
  • Patent number: 10558033
    Abstract: A light deflector 1 includes a reflector (2), inner piezoelectric actuators (4), an inner frame (5), outer piezoelectric actuators (6), and an outer frame (7). The reflector (2) is oscillated about a first axis Ua and a second axis Ub by the inner piezoelectric actuators (4) and the outer piezoelectric actuators (6), respectively. Formed on the rear surface of the light deflector 1 is a projecting rib (52), which projects from an encircling rib (51) of the inner frame (5) and reaches a corner portion (36) of a distal end portion of a piezoelectric cantilever (13a). A vertical side (22b) has an outer recess (35). The outer recess (35) extends along the projecting rib (52) in a portion of the distal end side of the piezoelectric cantilever (13a).
    Type: Grant
    Filed: February 17, 2019
    Date of Patent: February 11, 2020
    Inventors: Makoto Sakurai, Takaaki Koyama, Tomotaka Asari
  • Patent number: 10558032
    Abstract: A light-projecting device includes a light source that emits a light, and a scanner that performs a first scan of the light in a first direction and a second direction opposed to the first direction, and performs a second scan of the light in a direction orthogonal to the first direction. The scanner performs the second scan while the scanner is swinging in a first angle range when the scanner performs the first scan in the first direction. The scanner performs the second scan while the scanner is swinging in a second angle range that is greater than the first angle range when the scanner performs the first scan in the second direction.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: February 11, 2020
    Assignee: Funai Electric Co., LTD.
    Inventor: Tatsuya Ito
  • Patent number: 10551614
    Abstract: A depth camera assembly (DCA) for depth sensing of a local area includes a structured light generator, an imaging device, and a controller. The structured light generator illuminates the local area with a structured light pattern. The structured light generator includes a programmable diffractive optical element (PDOE) that generates diffracted scanning beams using optical beams. The PDOE functions as a dynamic diffraction grating that dynamically adjusts diffraction of the optical beams to generate the diffracted scanning beams of different patterns. The diffracted scanning beams are projected as the structured light pattern into the local area, wherein the structured light pattern is dynamically adjustable based on the PDOE. The imaging device captures image(s) of at least a portion of the structured light pattern reflected from object(s) in the local area. The controller determines depth information for the object(s) based on the captured image(s).
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: February 4, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Andrew Matthew Bardagjy, Joseph Duggan, Cina Hazegh, Fei Liu, Mark Timothy Sullivan, Simon Morris Shand Weiss
  • Patent number: 10545268
    Abstract: Retroreflective articles include a layer of optical elements, and a bead bond layer (140). The optical elements include transparent microspheres (110), a transparent polymeric polyurethane layer (120), and at least one reflective layer (130), where the transparent polymeric polyurethane layer (120) comprises a dried layer prepared from an aqueous polyurethane dispersion. The retroreflective articles have improved wash durability.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: January 28, 2020
    Inventors: Ying Xia, Shri Niwas, Michael A. McCoy, Yongshang Lu
  • Patent number: 10539780
    Abstract: According to the present invention there is provided a method of controlling the position of a MEMS mirror in a MEMS device, wherein the MEMS device comprises, a MEMS mirror, a magnet which provides a magnetic field (B), an actuating means which operatively cooperates with the MEMS mirror so that it can apply a force to the MEMS mirror which can tilt the MEMS mirror about at least one rotational axis when the actuating means is provided with a drive signal, wherein the magnitude force applied by the actuating means to the MEMS mirror is dependent on the amplitude of the drive signal, and a detection coil which is mounted on the MEMS mirror, the method comprising the steps of, detecting a change in the resistance (R) of the detection coil so as to detect a change in temperature of the MEMS mirror; determining the drive signal amplitude required to maintain the MEMS mirror at a predefined angular position (?); providing the actuating means with a drive signal which has an amplitude which is equal to the determi
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: January 21, 2020
    Assignee: North Inc.
    Inventors: Martin Lemaire, Thierry Barras, Nicolas Abele
  • Patent number: 10539779
    Abstract: A microelectromechanical systems (MEMS) package assembly and a method of manufacturing the same is provided. The MEMS package assembly includes a substrate, a housing coupled to the substrate to form a cavity, wherein the housing includes a transparent plate disposed above and parallel to the substrate and is configured to permit a transmission of light therethrough, and a MEMS chip disposed within the cavity and including a first main surface proximal to the transparent plate and a second main surface opposite to the first main surface and coupled to the substrate. The MEMS chip is oriented such that the first main surface is tilted at a tilt angle with respect to the transparent plate.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: January 21, 2020
    Assignee: Infineon Technologies AG
    Inventors: Ludwig Heitzer, Derek Debie, Klaus Elian, Cyrus Ghahremani, Johannes Lodermeyer, Oskar Neuhoff, Johann Strasser
  • Patent number: 10539769
    Abstract: A flat lens system includes a wedge-shaped refractive material having a first surface and a second surface opposite to the first surface for refracting incident light beams from an object having a width of Y, from the first surface towards the second surface; a reflective material positioned at the second surface of the wedge-shaped refractive material for reflecting the refracted light beams at a first angle toward the first surface, wherein the reflected light beams are refracted from the first surface at a second angle to form an image of the object having a width of X and including chromatic aberrations; and an apparatus for processing the image of the object to reduce said chromatic aberrations.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: January 21, 2020
    Inventor: John Daugela
  • Patent number: 10531794
    Abstract: The current invention is a Photorefractive Flash Device and System. It is a device that can be clipped to any portable computing device to illuminate the pupil in a way, that allows a proper pupillary reflex. On the backside of the device is a photoreceptor, on the frontside—facing the persons eyes are LEDs, centered around an opening where the lens of the camera looks through. A smartphone-app triggers the flashlight of the camera. The photoreceptor of the device senses this flash and triggers the six LEDs to flash sequentially within 200 milliseconds. 200 milliseconds is the time, the pupil needs to react. By staying under this 200 milliseconds, it can achieve high-quality pictures of the pupillary reflection, before the pupil contracts.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: January 14, 2020
    Inventors: Alexander Reis, Werner Ganahl, Lukas Bohler, Frank Schaeffel
  • Patent number: 10534163
    Abstract: A microscope device includes: an illumination optical system that has an illumination optical axis; and an observation optical system that has an observation optical axis. The illumination optical system includes a first scanning device that moves a condensing position in which the illumination light is condensed in a direction that is substantially parallel to the illumination optical axis. The first scanning device includes: a rotary mirror that includes a reflection surface; and a condenser lens that is arranged so as to irradiate the reflection surface with the illumination light and to receive the illumination light reflected by the reflection surface. The rotary mirror is rotationally moved or rotated in such a way that a distance between the condenser lens and the reflection surface on an optical axis of the condenser lens changes.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: January 14, 2020
    Inventor: Shinichi Hayashi
  • Patent number: 10534269
    Abstract: The disclosure provides a method that includes filling a cavity in a substrate with a second material, wherein the substrate includes a first material. The method also includes using galvanic and/or chemical deposition of a third material to apply an overcoating to a first surface of the substrate in a region of the cavity. The method further includes removing the second material from the cavity. In addition, the method includes, before or after removing the second material from the cavity, applying a reflective layer to the overcoating. The disclosure also provides related optical articles and systems.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: January 14, 2020
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Markus Bauer, Ulrich Bingel, Willi Anderl
  • Patent number: 10527858
    Abstract: A waveguide display is used for presenting media to a user. The waveguide assembly includes a light source, a source waveguide, an output waveguide, and a controller. The light source emits image light based on scanning instructions from the controller. The source waveguide receives the image light from the light source, expands the image light in at least one dimension, and outputs an expanded image light to the output waveguide at an input area. The output waveguide outputs the expanded image light from a portion of an output area based on a direction of the expanded light from the source waveguide.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: January 7, 2020
    Assignee: Facebook Technologies, LLC
    Inventor: Pasi Saarikko
  • Patent number: 10520647
    Abstract: A coating for an optical article, such as a lens, includes a bottom coating having at least one hydrophilic resin binder and at least one surfactant, forming an anti-fogging layer, and a top coating overlying the bottom coating, forming an anti-reflective layer. The top coating includes nanopores, which may be less than 150 nm in size.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: December 31, 2019
    Inventors: Shaopeng Zhu, Jon Nebo, Philip M. Johnson
  • Patent number: 10520789
    Abstract: Apparatus for generating ultraviolet (UV) pulsed laser-radiation for material-processing includes a laser-source providing infrared (IR) pulsed laser-radiation and a frequency-conversion module. A lithium tetraborate (Li2B4O7) crystal located within the frequency-conversion module converts the IR pulsed laser-radiation to UV pulsed laser-radiation by non-linear harmonic generation. The frequency-conversion module is an airtight enclosure that may be evacuated or contain a dry gas. A flexible optical fiber-assembly transports the IR pulsed laser-radiation from the laser-source to the frequency-conversion module.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: December 31, 2019
    Inventor: Ralf Knappe
  • Patent number: 10499022
    Abstract: Disclosed herein is a MEMS device including a fixed structure, a mobile structure, and deformable structures extending therebetween. The deformable structures have first ends anchored along X and Y axes of the fixed structure, and have second ends anchored offset from the X and Y axes of the fixed structure. The deformable structures are shaped so as to curve from their anchoring points along the mobile structure back toward the mobile structure, to extend along the perimeter of the mobile structure, and to then curve away from the mobile structure and toward their anchoring points along the fixed structure. Each deformable structure has two piezoelectric elements that extend along the length of that deformable structure, with one piezoelectric element having a greater length than the other piezoelectric element.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: December 3, 2019
    Assignee: STMicroelectronics S.r.l.
    Inventors: Domenico Giusti, Roberto Carminati, Nicolo′ Boni
  • Patent number: 10495792
    Abstract: The present disclosure is directed to lamina(e) comprising cube corner elements, a tool comprising an assembly of laminae and replicas thereof. The disclosure further relates to retroreflective sheeting.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: December 3, 2019
    Inventor: Kenneth L. Smith
  • Patent number: 10495871
    Abstract: This rotary drive apparatus is arranged to cause incoming light coming from a light source to be emitted to an outside while changing the direction of the incoming light, and includes a motor including a hollow shaft arranged to extend along a central axis extending in a vertical direction, the hollow shaft including a through hole arranged to pass therethrough in an axial direction. The through hole defines a light path along which the incoming light travels. A light-transmitting member is arranged to be in contact with an inner circumferential surface of the hollow shaft over the entire circumferential extent of the inner circumferential surface of the hollow shaft, over at least a portion of the vertical extent of the through hole.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: December 3, 2019
    Inventor: Yoichi Sekii
  • Patent number: 10488079
    Abstract: Reflectors for solar concentration and methods for formation thereof. A reflective assembly (1340) may include a plurality of elongate panels (370) forming a continuous trough (1330), and a frame (1230) configured to support the panels, with the frame with attached panels defining a parabolic contour on the top side of the trough.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: November 26, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Alexander H. Slocum, Ronald B. Campbell, Jr.
  • Patent number: 10491866
    Abstract: An actuator controlling device controls an actuator based on signals acquired from a photodetector. The actuator includes a drive unit that causes a reflecting part to move. The actuator controlling device includes a waveform generating unit, a driving amplifier, a power supply unit, and a controller. The waveform generating unit generates a voltage waveform for driving the drive unit. The driving amplifier amplifies the voltage waveform generated by the waveform generating unit. The power supply unit supplies power to the driving amplifier. The controller acquires detection signals from the photodetector and controls, based on the acquired detection signals, voltage to be supplied from the power supply unit to the driving amplifier.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: November 26, 2019
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroyuki Takahashi