Patents Examined by Euncha P. Cherry
  • Patent number: 11567239
    Abstract: The disclosed aliphatic thermoplastic polyurethane composition is well suited for use in thin, flexible light directing articles to impart flexibility, toughness, or protection to the light directing articles that contain optically active elements. The disclosed aliphatic thermoplastic polyurethanes have improved thermostability at higher temperatures. Specifically, the disclosed aliphatic thermoplastic polyurethanes have a cross-over temperature greater than 110° C. In one embodiment, the cross-over temperature is greater than 130° C. In one embodiment, the cross-over temperature is less than 170° C. and a Tg greater than 35° C. and less than 70° C.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: January 31, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bimal V. Thakkar, Jay M. Jennen, Robert D. Hamann, Ryan M. Braun, Robert F. Watkins, Joseph D. Rule, Todd D. Jones, Charlie C. Ho
  • Patent number: 11567200
    Abstract: A lidar system includes one or more light sources configured to generate a first beam of light and a second beam of light, a scanner configured to scan the first and second beams of light across a field of regard of the lidar system, and a receiver configured to detect the first beam of light and the second beam of light scattered by one or more remote targets. The scanner includes a rotatable polygon mirror that includes multiple reflective surfaces angularly offset from one another along a periphery of the polygon mirror, the reflective surfaces configured to reflect the first and second beams of light to produce a series of scan lines as the polygon mirror rotates. The scanner also includes a pivotable scan mirror configured to (i) reflect the first and second beams of light and (ii) pivot to distribute the scan lines across the field of regard.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: January 31, 2023
    Assignee: Luminar, LLC
    Inventors: Jason M. Eichenholz, Scott R. Campbell, John E. McWhirter, Matthew D. Weed, Lane A. Martin
  • Patent number: 11550039
    Abstract: The present disclosure relates to optical systems, specifically light detection and ranging (LIDAR) systems. An example optical system includes a laser light source operable to emit laser light along a first axis and a mirror element with a plurality of reflective surfaces. The mirror element is configured to rotate about a second axis. The plurality of reflective surfaces is disposed about the second axis. The mirror element and the laser light source are coupled to a base structure, which is configured to rotate about a third axis. While the rotational angle of the mirror element is within an angular range, the emitted laser light interacts with both a first reflective surface and a second reflective surface of the plurality of reflective surfaces and is reflected into the environment by the first and second reflective surfaces.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: January 10, 2023
    Assignee: Waymo LLC
    Inventors: Blaise Gassend, Pierre-Yves Droz, Benjamin T. Ingram
  • Patent number: 11543651
    Abstract: Embodiments of the disclosure provide a micromachined mirror assembly for controlling optical directions in an optical sensing system. The micromachined mirror assembly may include a micro mirror configured to direct an optical signal into a plurality of directions. The micromachined mirror assembly may also include at least one actuator coupled to the micro mirror and configured to drive the micro mirror to tilt around an axis. The micromachined mirror assembly may further include one or more objects attached to the micro mirror. The one or more objects may be asymmetrically disposed with respect to the axis to create an imbalanced state of the micro mirror when the micro mirror is not driven by the at least one actuator.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: January 3, 2023
    Assignee: BEIJING VOYAGER TECHNOLOGY CO., LTD.
    Inventors: Youmin Wang, Yufeng Wang, Qin Zhou
  • Patent number: 11536949
    Abstract: A laser projection device, including at least one reflector unit having at least one reflector element that is configured to deflect at least one laser beam to be projected, and having at least one drive unit that is configured to excite at least the reflector element into resonant vibration. The laser projection device includes at least one temperature compensation unit, which is configured to acquire a vibrational frequency of at least the reflector element and to ascertain the temperature of the reflector unit from it.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: December 27, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Alexander Ehlert, Daniel Kreye, Hendrik Specht
  • Patent number: 11536951
    Abstract: Embodiments of the disclosure provide a micromachined mirror assembly. The micromachined mirror assembly includes a micro mirror configured to tilt around an axis and a first and a second torsion beam each having a first and a second end. The second end of the first torsion beam and the second end of the second torsion beam are mechanically coupled to the micro mirror along the axis. The micromachined mirror assembly also includes a first DC voltage applied to the first end of the first torsion beam and a second DC voltage, different from the first DC voltage, is applied to the first end of the second torsion beam.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: December 27, 2022
    Assignee: BEIJING VOYAGER TECHNOLOGY CO., LTD.
    Inventors: Sae Won Lee, Youmin Wang, Qin Zhou
  • Patent number: 11535511
    Abstract: A method of post-processing an actuator element is presented. The method begins by receiving a fabricated actuator element including a metallic layer contacting a substrate, sacrificial layer proximate the metallic layer, and a first dielectric layer on the sacrificial layer. The metallic layer has an end proximal to and contacting at least part of the substrate and a distal end extending over the first dielectric layer. A second dielectric is deposited on a portion of the metallic layer at the distal end. And, the sacrificial layer is removed.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: December 27, 2022
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Lavern A Starman, John P K Walton, David Torres Reyes
  • Patent number: 11536952
    Abstract: A light detection and ranging system includes synchronously scanning transmit and receive mirrors that scan a pulsed fanned laser beam in two dimensions. Imaging optics image a receive aperture onto an arrayed receiver that includes a plurality of light sensitive devices. Scanning mirror assemblies include stationary permanent magnets and MEMS devices with attached mirrors and conductive coils.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: December 27, 2022
    Assignee: Microvision, Inc.
    Inventor: Ellis Matthew
  • Patent number: 11532253
    Abstract: A display system includes a display screen, a light source to generate a light beam to be modulated in accordance with image data, and a beam scanning module to receive the light beams and to direct the light beam onto an associated display region of the display screen. The beam scanning module includes a resonant scanning mirror configured to scan the light beam along a first scanning direction across the associated display region, and a polygon scanning mirror to scan the light beam along a second scanning direction across the associated display region.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: December 20, 2022
    Assignee: Prysm Systems Inc.
    Inventors: Roger A. Hajjar, Scot C. Fairchild, Arthur R. Telkamp
  • Patent number: 11528456
    Abstract: A control system for a laser scanning projector includes a mirror controller generating horizontal and vertical mirror synchronization signals for an oscillating mirror apparatus based upon a mirror clock signal, and laser modulation circuitry. The laser modulation circuitry generates horizontal and vertical laser synchronization signals as a function of a received laser clock signal, and generates control signals for a laser that emits a laser beam that impinges on the oscillating mirror apparatus. Synchronization circuitry generates the laser clock signal and sends the laser clock signal to the laser modulation circuitry, receives the horizontal and vertical mirror synchronization signals from the mirror controller, receives the horizontal and vertical laser synchronization signals from the laser modulation circuitry, and modifies the laser clock signal so as to achieve alignment between the horizontal and vertical mirror synchronization signals and the horizontal and vertical laser synchronization signals.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: December 13, 2022
    Assignee: STMicroelectronics Ltd
    Inventor: Elik Haran
  • Patent number: 11526001
    Abstract: Various embodiments of a multi-laser system are disclosed. In some embodiments, the multi-laser system includes a plurality of lasers, a plurality of laser beams, a beam positioning system, a thermally stable enclosure, and a temperature controller. The thermally stable enclosure is substantially made of a material with high thermal conductivity such as at least 5 W/(m K). The thermally stable enclosure can help maintain alignment of the laser beams to a target object over a range of ambient temperatures. Various embodiments of an optical system for directing light for optical measurements such laser-induced fluorescence and spectroscopic analysis are disclosed. In some embodiments, the optical system includes a thermally conductive housing and a thermoelectric controller, a plurality of optical fibers, and one or more optical elements to direct light emitted by the optical fibers to illuminate a flow cell. The housing is configured to attach to a flow cell.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: December 13, 2022
    Assignee: IDEX HEALTH & SCIENCE LLC
    Inventors: David E. Hargis, John O'Shaughnessy
  • Patent number: 11520160
    Abstract: An optical module is provided. The optical module includes a first optical element driving mechanism. The first optical element driving mechanism includes a first movable portion, a first fixed portion, and a first driving assembly. The first movable portion connects an optical path adjustment element. The optical path adjustment element is configured to change a transmission direction of incident light to a first direction that is different from the transmission direction. The first fixed potion is polygonal when viewed in the transmission direction. The first movable portion is movable relative to the first fixed portion. The first driving assembly drives the first movable portion to move relative to the first fixed portion. The first driving assembly comprises a shape memory alloy. The first driving assembly is located on a first side of the first fixed portion when viewed in the transmission direction.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: December 6, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Shu-Shan Chen, Chen-Hsien Fan, Liang-Ting Ho
  • Patent number: 11520119
    Abstract: The present disclosure generally relates to an electronic device accessory and a method of using such electrical device accessory to convert a built-in camera or webcam of the electronic device into an adjustable camera using the mirror reflection, allowing the built-in camera or webcam to operate, for example, as a document camera. The electronic device accessory comprises at least a foldable main body and a mirror adapted to attach to the main body. The electronic device accessory is configured to clip onto the electronic device. The electronic device includes a desktop computer, a laptop computer, a mobile phone, a tablet, an e-reader or any other electronic device that has a built-in camera. More particularly, the electronic device accessory is preferably a foldable laptop computer camera accessory.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: December 6, 2022
    Assignee: IPEVO, INC.
    Inventors: Royce Yu-Chun Hong, Mu Hau Kao
  • Patent number: 11520139
    Abstract: A rotating steering mirror assembly comprising a first wedge rotatable relative to a base and a second wedge rotatable relative to the first wedge to controllably tilt a mirror on an outward- or forward-facing surface of the second wedge. Respective motors can independently rotate the first and second wedges.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: December 6, 2022
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Dennis J. Adams, Alan F. Lindsay
  • Patent number: 11513343
    Abstract: Methods and systems for capturing image information of an environment using a laser scanner are described. The systems include a rotatable mirror arranged to direct light received onto an imaging camera of the laser scanner. The mirror is rotatable relative to the imaging camera and the camera is stationary relative to a rotational axis of the mirror. The methods include rotating the mirror relative to the camera and capturing, via the camera, an image containing image information of the received light. Each pixel of the image contains image information of an accumulation of the received light along a corresponding trajectory during a mirror rotation and each individual trajectory has a trajectory that crosses another of the individual trajectories within the image.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: November 29, 2022
    Assignee: FARO TECHNOLOGIES, INC.
    Inventor: Ludwig Klam
  • Patent number: 11513338
    Abstract: A mirror device includes a frame body, a shaft member provided inside the frame body and connected to the frame body at both end portions, and a reflection member fixed to the shaft member and provided so as to be capable of swinging around an axis of the shaft member. The reflection member has a base portion provided along an axial direction of the shaft member and a reflection portion provided on the base portion. The base portion has a three-dimensional uneven structure including a bottom wall portion having a main surface provided along the axial direction of the shaft member and a plurality of side wall portions extending from the bottom wall portion on the side opposite to the reflection portion.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: November 29, 2022
    Assignee: TOHOKU UNIVERSITY
    Inventors: Takashi Sasaki, Kazuhiro Hane, Tung Thanh Nguyen
  • Patent number: 11513339
    Abstract: An optical module includes a support layer, a device layer which is provided on the support layer, and a movable mirror which is mounted in the device layer. The device layer has a mounting region which is penetrated by the movable mirror, and a driving region which is connected to the mounting region. A space corresponding to at least the mounting region and the driving region is formed between the support layer and the device layer. A portion of the movable mirror is positioned in the space.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: November 29, 2022
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Tomofumi Suzuki, Tatsuya Sugimoto, Kyosuke Kotani
  • Patent number: 11500195
    Abstract: A light path adjustment mechanism includes a support, a carrier, an optical plate member and a plurality of actuators. The carrier is disposed on the support and connected to the support via a first elastic member and a second elastic member. The carrier includes a first side, a second side opposite the first side, a third side and a fourth side opposite the third side, and each of the third side and the fourth side is located between the first side and the second side. The actuators are disposed on at most three sides of the first side, the second side, the third side and the fourth side, and the actuators are disposed at least on the first side and the third side.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: November 15, 2022
    Assignee: YOUNG OPTICS INC.
    Inventor: Wei-Szu Lin
  • Patent number: 11493606
    Abstract: Optical apparatus includes a plurality of emitters arranged in a row and configured to emit respective beams of optical radiation. Projection optics, which are configured to project the beams toward a target, include first cylindrical lenses, which have respective, mutually-parallel first cylinder axes and are aligned respectively with the emitters in the row so as to receive and focus the respective beams in a first dimension, and a second cylindrical lens, which has a second cylinder axis perpendicular to the first cylinder axes and is positioned to receive and focus all of the beams in a second dimension, perpendicular to the first dimension. A scan driver is configured to shift the second cylindrical lens in a direction perpendicular to the second cylinder axis so as to scan the beams across the target.
    Type: Grant
    Filed: August 11, 2019
    Date of Patent: November 8, 2022
    Assignee: APPLE INC.
    Inventors: David S. Gere, Brad V. Johnson, Neil MacKinnon, Scott T. Smith, Seyedeh Nasim Habibi
  • Patent number: 11493750
    Abstract: An acquisition and tracking sensor includes a quad detector with a narrow field of view (NFOV) and a micro-electromechanical system (MEMS) mirror with a wide field of view (WFOV). The quad detector is placed behind the MEMS mirror to produce a WFOV to allow the quad detector to scan a larger area for the incoming laser beam.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: November 8, 2022
    Assignee: THE AEROSPACE CORPORATION
    Inventors: Shinhak Lee, Ryan Michael Miller, Kevin Li Chow, Tuong-vi Thi Tran, Farheen Rizvi