Patents Examined by Tuyen Tra
  • Patent number: 10690886
    Abstract: An imaging lens assembly includes, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The seventh lens element has an image-side surface being concave in a paraxial region thereof. The image-side surface of the seventh lens element has at least one convex shape in an off-axis region thereof. An object-side surface and the image-side surface of the seventh lens element are aspheric. At least one of an image-side surface of the fourth lens element and an image-side surface of the fifth lens element has at least one inflection point.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: June 23, 2020
    Assignee: LARGAN Precision Co., Ltd.
    Inventors: Hsiang-Chi Tang, Cheng-Chen Lin, Chun-Yen Chen, Yu-Tai Tseng, Wei-Yu Chen
  • Patent number: 10690943
    Abstract: To provide a laminate comprising a pair of polycarbonate optical sheet or film which are laminated together through a polarizing film layer and an adhesive layer of a photochromic composition comprising (I) a polyurethane urea resin and (II) a photochromic compound and having excellent photochromic properties, adhesion, heat resistance, perspiration resistance and excellent adhesion to a lens substrate.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: June 23, 2020
    Assignee: TOKUYAMA CORPORATION
    Inventors: Katsuhiro Mori, Toshimitsu Hiraren, Manami Oshio
  • Patent number: 10684522
    Abstract: A system and method of operating an electrochemical mirror for reversibly controlling the propagation of electromagnetic radiation. The mirror preferably includes a first electrode transmissive substrate which is substantially transparent to the electromagnetic radiation, a second electrode, and an electrolyte containing metal ions between the pair of electrodes. A first cathodic potential is applied across the electrodes to cause the metal ions from the electrolyte to electrodeposit a mirror film on the first electrode transmissive substrate. A second anodic potential is applied across the electrodes to oxidize and strip the metallic mirror film from the first electrode transmissive electrode. After a plurality of deposition and stripping cycles, a cleaning cycle is initiated to remove undissolved reflective material on the first electrode preferably by applying a third potential across the first and second electrodes which is increased to a fourth potential and then decreased back to the third potential.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: June 16, 2020
    Assignee: Faraday Technology, Inc.
    Inventors: E. Jennings Taylor, Holly M. Garich, Maria E. Inman
  • Patent number: 10684525
    Abstract: The disclosure provides, in part a seal system for sealing a film. The disclosure further provides, in part, a sealed film comprising a first and a second substrate; a first and a second electrode disposed on the surface of at least one of the substrates; a switching material disposed between the first and second substrates; a first seal and a second seal; the first seal disposed along an edge of the switching material, separating the switching material from the second seal.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: June 16, 2020
    Assignee: SWITCH MATERIALS, INC.
    Inventors: Simon James Gauthier, Andrew Koutsandreas, Duhane Lam, Jonathan Ross Sargent, Peter Alexander Von Hahn
  • Patent number: 10684526
    Abstract: An electrochromic element, which includes a pair of electrodes and an electrochromic layer disposed between the electrodes. The electrochromic layer contains at least one of two or more kinds of anode electrochromic materials, or two or more kinds of cathode electrochromic materials. All of one of the anode electrochromic materials and the cathode electrochromic materials have an equal molecular length, or have a molecular length ratio of (large molecular length)/(small molecular length) of 1.4 or less, the electrochromic element being such that even when a driving environment temperature changes, its gradation can be controlled under a state in which its absorption spectrum is retained.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: June 16, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Jun Yamamoto, Shinjiro Okada, Kenji Yamada, Wataru Kubo
  • Patent number: 10678066
    Abstract: The invention relates to a method for determining an usage index value for an single-vision ophthalmic lens adapted to correct the vision of a myopic wearer. According to the invention the method comprises: an optical profile providing step S1 during which an optical profile of said ophthalmic lens is determined; a material profile providing step S2 during which a material profile of said ophthalmic lens is determined; a physical parameter determining step S3 during which at least one physical parameter among physical parameters of said optical profile and material profile is determined; a gain assessing step S4 during which at least two gains brought by at least one determined physical parameter is evaluated on at least one evaluation criterion of dissatisfaction of said wearer when wearing said ophthalmic lens; an usage index value determining step S5 during which a value of an usage index is determined by adding the assessed gain for the evaluation criteria.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: June 9, 2020
    Assignee: Essilor International
    Inventors: Alexandra Roos, Julien Hubert, Catherine Derbois, Maxime Boiffier, Aude Carrega
  • Patent number: 10678067
    Abstract: A lens for refractive tear shaping, including a curved lens body defining an anterior partial thickness cavity indented into its anterior surface. The anterior partial thickness cavity has an anterior facing tear shaping surface structured to form a tear lens within the anterior partial thickness cavity. The anterior partial thickness cavity is structured to define a tear lens within the anterior partial thickness cavity by interaction between a tear film of the eye and the anterior facing base tear shaping surface. The posterior curvature of the tear lens is dependent on the shape of the anterior facing base tear shaping surface.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: June 9, 2020
    Inventor: Vance M. Thompson
  • Patent number: 10660516
    Abstract: An apparatus and method for evaluating a patient's contrast sensitivity. The apparatus including a table or chart with a plurality of shaded marks printed in cells in the table or chart. The shaded marks printed with a various contrasts with a log of Weber contrast ranging from ?0.20 to ?2.15. Where a subject marks an observed position of the shaded marks and a key is used to check the observed position against an actual position of the shaded mark to determine a threshold contrast of the subject.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: May 26, 2020
    Assignee: PRECISION VISION, INC.
    Inventor: John Robson
  • Patent number: 10663690
    Abstract: Disclosed is an adjustable mirror mount that is capable of adjusting a mirror in two axes with a high degree of precision and low cross-coupling. Long horizontal and vertical adjustment arms are used to allow the precision adjustment about both a horizontal axis and a vertical axis.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: May 26, 2020
    Assignee: Bio-Rad Laboratories, Inc.
    Inventor: Rodney C. Harris
  • Patent number: 10656443
    Abstract: An optical interconnect system has first and second waveguides each with wedge-shaped cross-section at a first end, disposed over an optical modulator. The optical modulator is a surface-plasmon multi quantum well (SP-MQW) modulator, the first waveguide an input waveguide and the second waveguide configured an output waveguide. In embodiments the SP-MQW modulator has multiple semiconductor layers disposed atop a lower metal layer between 10 and 300 nanometers thick and configured such that incident light is reflected at the lower metal layer unless a voltage is applied to the semiconductor layers, when incident light is coupled into a surface plasmon mode in the lower metal layer.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: May 19, 2020
    Assignees: THE TRUSTEES OF DARTMOUTH COLLEGE, LAXENSE INC., MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Jifeng Liu, Xiaoxin Wang, Juejun Hu, Xiaochen Sun, Tian Gu
  • Patent number: 10653311
    Abstract: An optical coherence tomography (OCT) system for imaging a retina applies a user specific focus correction to focus a sample arm light beam on the user's retina. An OCT image detector generates an OCT signal. A control unit monitors the OCT signal, controls a reference arm optical path length adjustment mechanism to identify a length of the reference arm optical path for which the OCT signal corresponds to an OCT image of the retina, and varies an operational parameter of the sample arm light beam focus mechanism over a range, while maintaining the length of the reference arm optical path for which the OCT signal corresponds to the OCT image of the retina, to identify a focus correction for the user, based on the OCT signal, for application to the sample arm light beam.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: May 19, 2020
    Assignee: NOTAL VISION LTD.
    Inventors: Amit Pascal, Gidon Goren-Gratzyani
  • Patent number: 10649243
    Abstract: An article includes a substrate with at least first and second materials disposed in or over the substrate. The first material is a non-color changeable material of at least one first color and the second material is a thermochromic color changeable material activated to produce at least one second color different from the first color. Additive color mixing of the first and second colors produces at least one third color different from the first and second colors.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: May 12, 2020
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Warren B. Jackson, Christopher L. Chua, Ashish Pattekar
  • Patent number: 10642120
    Abstract: The disclosure relates generally to an electrochromic system. The system may include one or more electrochromic devices and a central control device. Each electrochromic device may include two glass layers, two adhesive layers, an electrochromic film, a controller, and a control device. The two adhesive layers may be disposed on inner surfaces of the two glass layers. The electrochromic film may be disposed between the two adhesive layers, the electrochromic film including an electrochromic material layer, a solid polymer electrolyte, and a charge storage layer. The controller may include a power converter, a signal receiver, and a power output. The power converter may be configured to receive power from a power source. The signal receiver may be configured to receive a control signal. The power output may be coupled to the electrochromic film and configured to provide power to the electrochromic film to control optical state of the electrochromic film.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: May 5, 2020
    Assignee: Furcifer Inc.
    Inventors: Jian Wang, Yan Zhou
  • Patent number: 10642143
    Abstract: A projection correction method adapted to a projector. The projection correction method includes: sensing a temperature of a body of the projector, so as to obtain a first temperature value, where a focusing gear of the projector is located at a first gear position; determining whether the temperature of the body of the projector is changed, and when the temperature of the body of the projector is changed from the first temperature value to a second temperature value, the focusing gear is rotated by a predetermined distance to rotate the focusing gear to a second gear position; and determining whether a storage device stores a target gear position corresponding to the second temperature value, so as to rotate the focusing gear to the target gear position. Moreover, a projector using the aforementioned projection correction method is also provided.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: May 5, 2020
    Assignee: Coretronic Corporation
    Inventors: Ming-Tsun Lin, Hao-Chang Tsao, Wei-Lun Hung
  • Patent number: 10631724
    Abstract: An optical measurement instrument performs a series of wavefront measurements to obtain a plurality of sets of wavefront aberrometry data for an eye, and performs a series of corneal topography measurements to obtain a plurality of sets of corneal topography data for the eye. Each set of wavefront aberrometry data is obtained at a corresponding different point in time, and each set of corneal topography data is obtained at a corresponding different point in time. The wavefront aberrometry data and the corneal topography data are processed to produce combined tear film breakup data as a function of time. The combined tear film breakup data may be employed as a metric for evaluating a level of tear film breakup of the eye as a function of time.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: April 28, 2020
    Assignee: AMO Development, LLC
    Inventors: Daniel R. Neal, Richard J. Copland, Jason Hoy, Wei Xiong
  • Patent number: 10627606
    Abstract: A camera module, which is mounted on an inside of a front windshield of a vehicle and configured to image an external environment of the vehicle, includes multiple lens units on which an optical image of the external environment is incident, individually, and an imaging system to generate an outside image of the external environment by imaging through each of the lens units, individually.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: April 21, 2020
    Assignee: DENSO CORPORATION
    Inventors: Kensuke Chikata, Takeshi Kazama, Yasuki Furutake, Kazuyoshi Akiba
  • Patent number: 10620410
    Abstract: A zoom lens system according to an example embodiment includes, sequentially from an object side to an image plane side along an optical axis, a first lens group having a negative refractive power and including at least one doublet lens, the doublet lens including two lenses, a second lens group having a positive refractive power, and a third lens group having a positive refractive power, wherein the first lens group and the second lens group are configured to move along the optical axis to perform zooming and focusing, and the zoom lens system satisfies 3.0<Vdf/Vdr<6.0, where Vdf denotes an Abbe number of a lens arranged at the object side in a doublet lens, and Vdr denotes an Abbe number of a lens arranged at the image plane side in a doublet lens.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: April 14, 2020
    Assignee: HANWHA TECHWIN CO., LTD.
    Inventor: Jin Ho Jang
  • Patent number: 10620144
    Abstract: An example ophthalmic device for impedance-based measurements of hydration of the ophthalmic device includes an enclosure having a shape to be worn on an eye, an insert disposed within the enclosure control electronics disposed on the insert, the control electronics coupled to control operation of the ophthalmic device, and a plurality of electrodes disposed within the enclosure and electrically coupled to the control electronics, where the plurality of electrodes are arranged outside of a central optical area of the ophthalmic device, and where each of the plurality of electrodes is electrically coupled to receive a respective voltage from the control electronics to measure an impedance of the enclosure proximate the plurality of electrodes, the measured impedance indicative of a hydration level of the enclosure proximate to the plurality of electrodes.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: April 14, 2020
    Assignee: Verily Life Sciences LLC
    Inventor: Christian Gutierrez
  • Patent number: 10617566
    Abstract: In an infrared camera configuration, a modular goggle assembly can diagnose patients having vestibular dysfunction, concussion, or other maladies observable with an examination of the eyes. In a virtual reality display configuration, the assembly can be used to provide treatment to patients once the cause of the illness or malady is determined. The assembly is lightproof, mobile, and easily configurable.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: April 14, 2020
    Assignee: Vestibular First, LLC
    Inventor: Patrick Jeremiah Esmonde
  • Patent number: 10602925
    Abstract: In one embodiment, a sensorless adaptive optics imaging system includes a source of light, an optical delivery unit having a wavefront modifying element, and an optical coherence tomography (OCT) sensor configured to acquire OCT images based on light emitted by the source of light and transmitted through the optical delivery unit. The system also includes a processing unit that can: process the OCT images, and determine an adjustment of parameters of the wavefront modifying element. In some embodiments, the system includes a multi-photon microscopy (MPM) sensor that acquires MPM images based on the light transmitted through the optical delivery unit.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: March 31, 2020
    Assignee: Simon Fraser University
    Inventors: Marinko Sarunic, Yifan Jian, Eunice Michelle Cua, Stefano Bonora, Robert J. Zawadzki