Patents Examined by Euncha P. Cherry
  • Patent number: 10718951
    Abstract: Systems, devices, and methods for beam combining within laser projectors are described. A laser projector includes first, second, and third laser diodes to generate red, green, and blue laser light respectively, a controllable scan mirror, and a heterogeneous beam splitter system. The red, green, and blue laser light have distinct maximum powers. The heterogeneous beam splitter system splits at least one of the red, green, and blue laser light and combines respective first portions of all three into an aggregate beam. Second portions of laser light are excluded from the aggregate beam. At the maximum power of each laser light the aggregate beam is white as defined by a target white point. The heterogeneous beam splitter system directs the aggregate beam towards the controllable scan mirror which scans the beam onto a projection surface. Decreasing the power of the laser light post-generation provides a larger range of aggregate beam colors.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: July 21, 2020
    Assignee: North Inc.
    Inventors: Lloyd Frederick Holland, Joshua Moore
  • Patent number: 10710875
    Abstract: In described examples, a device mounted on a substrate includes an encapsulant. In at least one example, an encapsulant barrier is deposited along a scribe line, along which the substrate is singulatable. To encapsulate one or more terminals of the substrate, an encapsulant is deposited between the encapsulant barrier and an edge of the device parallel to the encapsulant barrier.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: July 14, 2020
    Inventors: Jane Qian Liu, Gary Philip Thomson, Richard Allen Richter
  • Patent number: 10712633
    Abstract: An optical system is provided and includes a light-sensing element, at least one optical lens, a reflecting unit and a first driving assembly. The reflecting unit includes a reflecting surface, configured to receive an incident light and to reflect a reflecting light. The reflecting light travels through the optical lens into the light-sensing element. The first driving assembly is configured to control the reflecting unit to move along a first axis direction, so as to adjust a focus position of the reflecting light on the light-sensing element.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: July 14, 2020
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chih-Wei Weng, Cheng-Kai Yu
  • Patent number: 10705327
    Abstract: A light emitting method includes passing a laser beam through at least one offset assembly and a focusing assembly in sequence, and actuating, by a control-manipulating mechanism, the offset assembly to cause the laser beam to be offset, so that the laser beam can quickly produce a controllable opening of any shape in a drilling process.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: July 7, 2020
    Inventors: Pin-Hao Hu, Shao-Chuan Lu, Hsuan-Chang Lee, Po-Huan Chou, Min-Kai Lee
  • Patent number: 10705404
    Abstract: The disclosed embodiments relate to lateral migration of particles in a totally internally reflective displays. In certain embodiments, the reflective image displays include partial and full walls to form partitions within the display. The walls mitigate diffusion and lateral migration or drift of electrophoretically mobile particles due to lateral electric fields at adjacent pixels. This improves image quality, bistability and long-term display performance.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: July 7, 2020
    Assignee: Concord (HK) International Education Limited
    Inventors: Bram M. Sadlik, Robert J. Fleming, Steven Gou, Scott W. Ferguson, Rob Hannebauer, Alex Henzen
  • Patent number: 10698200
    Abstract: An optical projection system provides part of a display system that presents a displayed virtual image at a predetermined distance in front of a viewing position. Said display system comprises a projection system and a primary reflecting optic that deflects an off-axis incoming optical signal from the projection system toward the viewing position. Said projection system is arranged to provide an adapted output image signal that compensates for optical aberration effects introduced by the reflecting optic to ensure provision of a reduced aberration display image to the viewing position, and where the reflecting optic comprises a grating structure.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: June 30, 2020
    Assignee: The Technology Partnership Plc
    Inventors: Neil Griffin, Nick Wooder, Luis Diaz-Santana
  • Patent number: 10690922
    Abstract: A super-resolution scanning display. The scanning display includes a light source, a conditioning assembly, and a scanning mirror assembly. The light source is configured to emit source light from a plurality of columns of emitters formed along a first dimension, including at least a first column of emitters emitting in a first band of light and a second column of emitters emitting in a second band of light which are offset along the first dimension by a fraction of an emitter width and offset along a second dimension—that is orthogonal to the first dimension—by greater than the emitter width. The conditioning assembly receives and conditions the source light. The scanning mirror assembly scans the conditioned light along the second dimension to generate a portion of an image at a first location with a resolution that is more than a first threshold number of emitters in a unit angle in the first dimension.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: June 23, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Byron Taylor, Nicholas Daniel Trail
  • Patent number: 10692620
    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: June 23, 2020
    Assignee: nLIGHT, Inc.
    Inventor: Ken Gross
  • Patent number: 10684465
    Abstract: Described herein is a device including mirror control circuitry for controlling a movable mirror. The mirror control circuitry includes drive circuitry for providing a drive signal to the movable mirror, and a processor. The processor cause the drive circuitry to generate the drive signal so as to have pulses with leading edges occurring an offset period of time after a maximum opening angle of the movable mirror and trailing edges occurring an offset period of time before a zero crossing of the movable mirror. The processor may sample a mirror sense signal from the movable mirror at times at which a derivative of capacitance of the movable mirror with respect to time is zero, and then perform an action based upon the samples.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: June 16, 2020
    Assignee: STMicroelectronics Ltd
    Inventors: Sivan Kinstlich, Offir Duvdevany
  • Patent number: 10678046
    Abstract: A microelectromechanical system (MEMS) package assembly and a method of manufacturing the same are provided for Light Detection and Ranging (LIDAR) systems. A MEMS package assembly includes a MEMS chip including a front-side surface and a back-side surface, the MEMS chip further including a LIDAR MEMS mirror configured to receive light and reflect the light as reflected light; and a cavity cap disposed on the front-side surface of the MEMS chip and forms a cavity that surrounds the LIDAR MEMS mirror such that the LIDAR MEMS mirror is sealed from an environment, the cavity cap having an asymmetrical shape such that a transmission surface of the cavity cap, through which the light and the reflected light is transmitted, is tilted at a tilt angle with respect to the front-side surface of the MEMS chip.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: June 9, 2020
    Assignee: Infineon Technologies AG
    Inventors: Cyrus Ghahremani, Horst Theuss
  • Patent number: 10663732
    Abstract: Systems, devices, and methods for beam combining are described. A monolithic beam combiner includes a solid volume of optically transparent material having a planar input surface, an output surface, a planar reflector physically coupled to the solid volume, and at least a first planar dichroic reflector within the solid volume. Multiple light sources input light into the solid volume through the planar input surface such that each light beam from a respective source is initially incident on one of the planar reflector and the at least a first planar dichroic reflector. The light is reflected by and transmitted through the reflectors and an aggregate beam is created. Because the reflectors are within an optically transparent material the beam combiner can be made more compact than a conventional beam combiner. This monolithic beam combiner is particularly well suited for use laser projectors and in wearable heads-up displays that employ laser projectors.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: May 26, 2020
    Assignee: North Inc.
    Inventors: Lloyd Frederick Holland, Joshua Moore
  • Patent number: 10663585
    Abstract: A technique for manufacturing highly balanced rotatable polygon mirrors for use in scanners includes forming a block having a first wall, a second wall, and reflective surfaces extending between the first and second walls, the surfaces being angularly offset from one another along a periphery of the block. The technique includes applying a coarse balancing procedure to the block, making the surfaces reflective, mating the block to a motor, and applying a precise balancing procedure to the block. The technique also includes imparting rotation to the block and removing material from the block via the first wall using high-energy laser pulses.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: May 26, 2020
    Assignee: Luminar Technologies, Inc.
    Inventor: John E. McWhirter
  • Patent number: 10656431
    Abstract: An optical device includes a main base, a rotation mechanism, a carrying base, and an optical element. The rotation mechanism is connected to the main base. The carrying base is connected to the rotation mechanism. The optical element is disposed on the carrying base, and configured to change the transmission direction of an incident light. By changing the length of a bias wire of the rotation mechanism, the carrying base is rotated relative to the main base about a rotation axis.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: May 19, 2020
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Shu-Shan Chen, Chen-Hsien Fan, Liang-Ting Ho
  • Patent number: 10656340
    Abstract: Disclosed is a terminal having a fingerprint identification function, including: a body having a camera (1) and a processing unit, the camera (1) being electrically connected to the processing unit; an optical lens assembly, used to change a focal length of the camera (1), located above the camera (1), and mounted on the body; a light-guiding fingerprint capture platform, located above the optical lens assembly, and used cooperatively with the optical lens assembly; and a light source (2), located between the camera (1) and the fingerprint capture platform and aside the camera (1), a light emitting end of the light source (2) facing the fingerprint capture platform.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: May 19, 2020
    Inventor: Yang Gao
  • Patent number: 10659743
    Abstract: An image projection device includes: a first mirror oscillating to scan an image light beam forming an image projected onto a retina of a user; a light source emitting the image light beam and a detection light beam to the first mirror at different timings; a second mirror having a first region reflecting the image light beam reflected by the first mirror to the retina and a second region reflecting the detection light beam reflected by the first mirror in a direction different from a direction in which the image light beam is reflected, and scanning neither the image light beam nor the detection light beam reflected by the first mirror; a detector detecting the detection light beam reflected by the second region; and a controller adjusting oscillation of the first mirror and an emission timing of the image light beam based on a detection result by the detector.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: May 19, 2020
    Inventors: Yasuhiko Arakawa, Mitsuru Sugawara, Makoto Suzuki, Shuichi Tojo
  • Patent number: 10649203
    Abstract: A display panel, a display device and a control method thereof are provided. The display panel includes a plurality of display units on a base substrate, each display unit includes: a driving component, and a light splitting component driven by the driving component to convert incident light into light of different colors.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: May 12, 2020
    Inventors: Kai Wang, Zhonghao Huang
  • Patent number: 10649117
    Abstract: A “multicube” retroreflector may include “nested” corner cubes. Such a design combines the ease of fabrication of conventional corner cubes (e.g., stamping from a sheet) and the ability to easily and densely package them with a greater range of angles over which light will be reflected back towards the source. Such multicube retroreflectors may reflect 50% more light than corner cube retroreflectors. A retroreflector, or an array of retroreflectors, may be used as part of a communication system. A modulated retroreflector or an array thereof can form the basis of a unique communication system. For instance, by using a modulated retroreflector, or an array of such retroreflectors, a host system (e.g., an aircraft) can receive data from a remote system (e.g., a drone, an air-dropped sensor package, etc.) in a way that is difficult to intercept, and minimizes the power, computation, and antenna pointing requirements for the remote system.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 12, 2020
    Inventors: John Lewellen, John Harris
  • Patent number: 10649202
    Abstract: A micro-electro-mechanical (MEMS) device is formed in a first wafer overlying and bonded to a second wafer. The first wafer includes a fixed part, a movable part, and elastic elements that elastically couple the movable part and the fixed part. The movable part further carries actuation elements configured to control a relative movement, such as a rotation, of the movable part with respect to the fixed part. The second wafer is bonded to the first wafer through projections extending from the first wafer. The projections may, for example, be formed by selectively removing part of a semiconductor layer. A composite wafer formed by the first and second wafers is cut to form many MEMS devices.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: May 12, 2020
    Assignee: STMicroelectronics S.r.l.
    Inventors: Sonia Costantini, Marta Carminati, Daniela Angela Luisa Gatti, Laura Maria Castoldi, Roberto Carminati
  • Patent number: 10649204
    Abstract: A device and a method for deflecting a light beam to scan a solid angle range. The device includes: a deflection device having an adjustable micromirror, which is configured to periodically deflect a light beam in accordance with an actuating signal, in order to periodically scan a solid angle range, using the micromirror; a control device to receive a control signal that indicates a currently preferred solid angle in the solid angle range to be scanned, and to generate the actuating signal based on the received control signal; and the control device is configured to generate the actuating signal so that a maximum of a location probability density of the periodically deflected light beam is situated at the solid angle.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: May 12, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Johannes Artzner, Manuel Glueck
  • Patent number: 10644548
    Abstract: Scanning apparatus includes a rotor, including a permanent magnet, which is configured to rotate about an axis. A stator includes a magnetic core, which is configured to generate a static magnetic field in a vicinity of the rotor and defines an equilibrium angle of rotation of the rotor, at which the permanent magnet is aligned with the static component of the magnetic field. At least one coil is wound on the magnetic core so that when the coil driven with an AC electrical current at a selected frequency, the stator generate a time-alternating magnetic field, which causes the rotor to oscillate on the axis at the selected frequency about the equilibrium angle.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: May 5, 2020
    Assignee: APPLE INC.
    Inventors: Noel Axelrod, Rashed Mahameed, Raviv Erlich, Yuval Gerson