Patents Examined by William R Alexander
  • Patent number: 11029479
    Abstract: A lens barrel includes a first guide barrel, a first cam barrel, a linear movement barrel, a second guide barrel configured to guide a linear movement of the linear movement barrel in the optical axis direction, and a second cam barrel movable in the optical axis direction as the second guide barrel moves in the optical axis direction, and rotatable around the optical axis relative to the second guide barrel, and the second cam barrel including a second cam configured to move the linear movement barrel in the optical axis direction by a rotation of the second cam barrel. The linear movement barrel is disposed between the second guide barrel disposed on an outer circumference of the linear movement barrel and the second cam barrel disposed on an inner circumference of the linear movement barrel.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: June 8, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shinsuke Yoshida
  • Patent number: 11029482
    Abstract: The present disclosure provides a pressing ring and a lens module. The pressing ring includes an annular body; and first and second sheared edges formed on the annular body. The body includes an inner side wall around an optical axis and forming a light through hole, an object-side wall extending from an edge of the inner side wall in a direction facing away from optical axis, an image-side wall opposite to the object-side wall and extending from an edge of the inner side wall in a direction facing away from the optical axis, and an outer side wall extending from an edge of the object-side wall facing away from the inner side wall to the image-side wall. The object-side wall includes an abutting surface surrounding the inner side wall and connected to the inner side wall, and a glue-dispensing groove surrounding and connected to the abutting surface.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: June 8, 2021
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventor: Hailong Wang
  • Patent number: 11031750
    Abstract: A light source device includes: a plurality of laser sources; a plurality of collimating parts, each configured to collimate the light beam emitted from a corresponding one of the laser sources; a combining grating configured to diffract, at an identical diffraction angle, light beams that have passed through the collimating parts and are incident on the combining grating at different incident angles, to combine the diffracted light beams; and a plurality of plane transmission gratings, wherein each of the plane transmission gratings is disposed in an optical path between a corresponding one of the collimating parts and the combining grating, and wherein each of the plane transmission gratings is adjustable so as to allow selection of a wavelength of the light beam incident on the combining grating.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: June 8, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Norihiro Dejima, Masaki Omori
  • Patent number: 11029456
    Abstract: A retroreflector has an arrangement of triples, each having three side surfaces that stand essentially perpendicular on one another. The triples are disposed on a curved or domed surface. The geometry of the triple array is adapted to the curved surface, to even out the thresholds, and extend the side surfaces of a triple. The extensions of the side surfaces project into adjacent triples. Due to the extension projecting into adjacent triples, joints are formed there, which even out the uneven area. The joints can assume the form of a protrusion filled with material or a notch in which material is missing. A forming die produces the retroreflector and a method produces the forming die. The retroreflectors have geometries having full cube surfaces, in other words Full Cubes, for curved or domed surfaces or free-form surfaces.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 8, 2021
    Assignee: IMOS Gubela GmbH
    Inventor: Simon Weingaertner
  • Patent number: 11022823
    Abstract: switchable optical filter that is based on carrier injection induced semiconductor to metal phase transition (SMT) of vanadium oxide-based (e.g., VO2) thin films may reversibly change from optically transparent to opaque while undergoing such phase transition. Electrical carrier injection may be established by an electric field or by photoexcitation. The SMT may also be induced by a combination of applying an electric field and optical flux. Such a switchable optical filter, when inserted in the optical path of an optical radiation sensor, may be used to control and/or limit high power optical beams, such as a laser beam impinging on one or more sensor elements. Since the SMT may be configured to occur at ultrafast time scales (e.g., approximately 100 femtoseconds), it may also act as a beam shutter and/or as a fast optical beam modulator.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: June 1, 2021
    Assignee: University of North Texas
    Inventor: Athanasios J. Syllaios
  • Patent number: 11019997
    Abstract: A gonioscopic attachment can attach to a gonioscope and can include atraumatic retention elements that are configured to engage an eye to retain the gonioscope relative to the eye. The gonioscopic attachment can be configured to position the gonioscope so that at least a portion of the concave distal surface of the gonioscopic optical element is spaced apart from the eye, and/or so that the curvature of the distal surface is angularly offset from the curvature of the eye. The gonioscope can include a fixation point configured to be visible to the subject when the gonioscope is positioned on the eye. In some embodiments, the retention elements can be incorporated directly into the gonioscope. A coupling mechanism can couple the gonioscope to a lid speculum. The gonioscope can include a light pipe, which can be configured to directly light into the eye.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: June 1, 2021
    Inventors: Charles Raymond Kalina, Jr., Thomas W. Burns, Chris Calcaterra, Edward Collins, Timothy McCauley, David S. Haffner, Steven M. Henderson
  • Patent number: 11022800
    Abstract: In an optical system of a display device, an image light projecting device emits image light toward a first side in a first direction. A reflective element of a first light-guiding system emits the image light emitted from the image light projecting device toward a second side in the first direction. A first diffraction element having a reflectivity emits the image light emitted from the reflective element toward the first side in the first direction. A second diffraction element having a reflectivity emits the image light emitted from the first diffraction element toward the second side in the first direction and causes the image light to be incident on an eye of an observer. An optical path from the first diffraction element to the second diffraction element is provided in a second light-guiding system.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: June 1, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Fumika Yamada
  • Patent number: 11022775
    Abstract: A lens barrel includes a first guide barrel configured to guide linear movements of a first lens and a second lens in an optical axis direction, a first cam barrel rotatable around an optical axis relative to the first guide barrel and including a first cam configured to move the first lens in the optical axis direction by a rotation of the first cam barrel, and a second cam barrel rotatable around the optical axis relative to the first guide barrel by the rotation of the first cam barrel, and including a second cam configured to move the second lens in the optical axis direction by a rotation of a second cam barrel.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: June 1, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroki Ito
  • Patent number: 11025893
    Abstract: A near-eye display system comprising an image source, a modulation stack, and an imaging assembly. The modulation stack, in one embodiment, comprises one or more digital light path length modulators.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: June 1, 2021
    Assignee: Avegant Corp.
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Eamon Han O'Connor, Forrest Foust, Warren Cornelius Welch, III
  • Patent number: 11016264
    Abstract: A lens assembly actuating module includes a holder, a metal yoke, a lens actuator and a Hall sensor. The holder includes a central opening, at least three metal connectors insert-molded with the holder, at least two metal terminals insert-molded with the holder, and a plurality of plated metal layers disposed on a surface of the holder. The metal yoke is coupled with the holder. The lens actuator is for carrying a lens unit including an optical axis. The lens actuator is movably disposed in the metal yoke. The lens actuator includes at least one elastic element and at least three metal hanging wires. The Hall sensor is disposed on one of the plated metal layers of the holder. The Hall sensor is for detecting a movement of the lens unit along a direction perpendicular to the optical axis.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: May 25, 2021
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Te-Sheng Tseng, Wen-Hung Hsu, Ming-Ta Chou
  • Patent number: 11016271
    Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein the optical imaging system satisfies 0.5<L12345TRavg/L7TR<0.9, where L12345TRavg is an average value of overall outer diameters of the first to fifth lenses, L7TR is an overall outer diameter of the seventh lens, and L12345TRavg and L7TR are expressed in a same unit of measurement.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: May 25, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jin Hwa Jung, Sot Eum Seo, Yong Joo Jo, Ga Young An
  • Patent number: 11016307
    Abstract: A digital light path length modulator includes an optical path length extender (OPLE) and a polarization modulator. The OPLE has two light paths with different path lengths, such that the light having a first polarization is directed through a first light path, and the light having a second polarization is directed through a second light path.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: May 25, 2021
    Assignee: Avegant Corp.
    Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
  • Patent number: 11014502
    Abstract: A rear view assembly includes a housing, an electro-optic assembly disposed within the housing, and an ambient light sensor operably coupled with the electro-optic assembly. An at least partially light transmissive light sensor lens is integrally formed as part of the housing proximate the ambient light sensor. The light sensor lens is free of mechanical fasteners.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: May 25, 2021
    Assignee: GENTEX CORPORATION
    Inventors: Christopher D. Pollack, Eric S. Sloterbeek, William M. Vanden Bos
  • Patent number: 11018326
    Abstract: There is provided a polarizing plate with optical compensation layers that is excellent in antireflection characteristic: in an oblique direction while maintaining an excellent antireflection characteristic in a front direction, and that has a neutral hue in the oblique direction. A polarizing plate with optical compensation layers according to the present invention is used for an organic EL panel The polarizing plate with optical compensation layers according to an embodiment of the present invention includes in the following order: a polarizer; a first optical compensation layer; and a second optical compensation layer. The first optical compensation layer shows a refractive index characteristic of nx>nz>ny and has an Re (550) of from 230 nm to 310 nm. The second optical compensation layer shows a refractive index characteristic of nx>nz>ny and satisfies a relationship of Re (450)<Re (550).
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: May 25, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Toshiyuki Iida, Hironori Yaginuma
  • Patent number: 11016272
    Abstract: An imaging lens includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; a fourth lens having positive refractive power; a fifth lens; a sixth lens; a seventh lens; an eighth lens; and a ninth lens having negative refractive power, arranged in this order from an object side to an image plane side. The ninth lens is formed in a shape so that a surface thereof on the image plane side has an aspherical shape having an inflection point.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: May 25, 2021
    Assignee: KANTATSU CO., LTD.
    Inventor: Hitoshi Hirano
  • Patent number: 11016284
    Abstract: Setting of an order of sub-frame periods is simplified. A display element array section includes a plurality of arranged display elements in which a gray-scale display is performed in accordance with display data in each frame period that is a display period of one screen. A display control section divides the frame period into a plurality of sub-frame periods and divides the plurality of display elements into a plurality of groups to perform control of a display in each of the plurality of sub-frame periods in each of the plurality of groups. A display data supply section supplies the display data in each of the sub-frame periods to the display element array section by shifting a predetermined delay time in each of the groups and supplies the display data in each of the sub-frame periods to the display element array section on the basis of an order of the sub-frame periods in accordance with the number of the divided groups and the predetermined delay time.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: May 25, 2021
    Assignee: SONY CORPORATION
    Inventor: Atsuhiro Chiba
  • Patent number: 11016279
    Abstract: An observation device includes: an illumination optical system that irradiates illumination light onto a sample, an objective optical system that has a phase modulation region and a light blocking region and that acquires an image of the illumination light transmitted through the sample, and an autofocus mechanism. The objective optical system selectively outputs the illumination light from a first output region disposed at a position where the illumination light is to be projected onto the phase modulation region and a second output region disposed at a position where a portion of the illumination light is to be projected onto the light blocking region. The autofocus mechanism causes the objective optical system to acquire an image of the illumination light while causing the illumination light to be output from the second output region, and detects the focus position of the objective optical system based on the contrast of the acquired image.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: May 25, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Tadashi Hirata, Masaki Higurashi
  • Patent number: 11017309
    Abstract: A photonic parallel network can be used to sample combinatorially hard distributions of Ising problems. The photonic parallel network, also called a photonic processor, finds the ground state of a general Ising problem and can probe critical behaviors of universality classes and their critical exponents. In addition to the attractive features of photonic networks—passivity, parallelization, high-speed and low-power—the photonic processor exploits dynamic noise that occurs during the detection process to find ground states more efficiently.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: May 25, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Charles Roques-Carmes, Yichen Shen, Li Jing, Tena Dubcek, Scott A. Skirlo, Hengameh Bagherianlemraski, Marin Soljacic
  • Patent number: 11016301
    Abstract: An auto-focus head-mounted display (HMD) dynamically generates aberration-adjusted images based on measured accommodation of user's eye(s). An aberration-adjusted image is an image distorted to correct aberrations that would otherwise occur at a retina of the user due to image light passing through optics of the HMD. The aberration-adjusted image corrects the aberrations of the HMD and “accounts” for the aberrations of the eye so that the resulting retinal image is free of optical aberrations due to the HMD but preserves correct eye optical aberrations that are correlated with a current accommodative state of the eye.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: May 25, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: William Aaron Nicholls, Marina Zannoli, Douglas Robert Lanman, Nicholas Daniel Trail
  • Patent number: 11017186
    Abstract: Dielectric resonators provide a building block for the development of low-loss resonant metamaterials because they replace lossy ohmic currents of metallic resonators with low-loss displacement currents. The spectral locations of electric and magnetic dipole resonances of a dielectric resonator can be tuned by varying the resonator geometry so that desired scattering properties are achieved.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 25, 2021
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Salvatore Campione, Michael B. Sinclair, Igal Brener, D. Bruce Burckel, Aaron J. Pung, Michael D. Goldflam