Patents Examined by Brandi N Thomas
  • Patent number: 10980413
    Abstract: Embodiments disclosed herein include devices, systems, and methods for determining tear film break-up time and for detecting eyelid margin contact and blink rates, particularly for diagnosing, measuring, and/or analyzing dry eye conditions and symptoms. The apparatus and methods for determining tear film break-up time and for detecting eyelid margin contact and blink rates, particularly for diagnosing, measuring, and/or analyzing dry eye conditions and symptoms may employ ocular surface interferometry (OSI) devices or other imaging and display devices capable of imaging and displaying a picture of a patient's eye during tear film break-up time and blink rate related procedures.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: April 20, 2021
    Assignee: Taer Science, Inc.
    Inventors: Donald R. Korb, Stephen M. Grenon, Caroline Blackie, Timothy R. Willis, Steve Bacich
  • Patent number: 10969646
    Abstract: Aspects of this disclosure concern controllers and control methods for applying a drive voltage to bus bars of optically switchable devices such as electrochromic devices. Such devices are often provided on windows such as architectural glass. In certain embodiments, the applied drive voltage is controlled in a manner that efficiently drives an optical transition over the entire surface of the electrochromic device. The drive voltage is controlled to account for differences in effective voltage experienced in regions between the bus bars and regions proximate the bus bars. Regions near the bus bars experience the highest effective voltage.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: April 6, 2021
    Assignee: View, Inc.
    Inventors: Gordon E. Jack, Sridhar Karthik Kailasam, Stephen Clark Brown, Anshu A. Pradhan
  • Patent number: 10968354
    Abstract: According to the invention, an electrophoretic dispersion liquid includes at least one type of an electrophoretic particle, and a dispersion medium, in which the content of transition metal of group 8 elements derived from a catalyst which is used to generate at least one of a block copolymer (a particle surface treatment agent) used to form the electrophoretic particle and the dispersion medium is in a range of greater than 0 ppm to equal to or less than 2 ppm in the electrophoretic dispersion liquid.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: April 6, 2021
    Assignee: E Ink Corporation
    Inventors: Harunobu Komatsu, Masahiko Nakazawa, Kiyoshi Nakamura, Hiroki Nakahara
  • Patent number: 10962703
    Abstract: Provided herein are compositions comprising functionalized gallium-based semiconductor nanoparticles for use in nanoprint resins and high-index overcoat materials. Also provided are methods of manufacturing functionalized gallium-based semiconductor nanoparticles and nanoprint resins and high-index overcoat materials using gallium-based semiconductor nanoparticles.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: March 30, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Austin Lane, Matthew E. Colburn, Giuseppe Calafiore
  • Patent number: 10959614
    Abstract: To provide an ophthalmologic device and a pupil state measuring method capable of securing accuracy of a measurement result of objective measurement and effective for investigating the cause of an error during objective measurement. A pupil state measuring method according to the present invention includes: an ocular characteristic measuring step of objectively measuring an ocular characteristic of a subject eye of a subject; an imaging step of substantially simultaneously imaging an anterior ocular segment of the subject eye from different directions using at least two imaging units in measuring the ocular characteristic; a measuring step of analyzing at least one image of images taken by the at least two imaging units to measure a pupil state of the subject eye; and a step of performing the imaging step and the measuring step in measuring the ocular characteristic.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 30, 2021
    Assignee: TOPCON CORPORATION
    Inventor: Masashi Nakajima
  • Patent number: 10952607
    Abstract: Improved optical coherence tomography systems and methods to measure thickness of the retina are presented. The systems may be compact, handheld, provide in-home monitoring, allow the patient to measure himself or herself, and be robust enough to be dropped while still measuring the retina reliably.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: March 23, 2021
    Assignee: ACUCELA INC.
    Inventors: Lukas Scheibler, Matthias Pfister, Urban Schnell, Stefan Troller, Ryo Kubota
  • Patent number: 10955641
    Abstract: A driving mechanism is provided, including a case, a holder and a driving module. The holder is disposed in the case for holding an optical member. The driving module is disposed in the case for driving the holder. The case is substantially quadrilateral and includes a first side and a second side. The driving module includes a first magnetic driving component winding on a periphery of the holder. The first magnetic driving component includes a first segment and a second segment that are respectively substantially parallel to the first side and the second side. The distance between the first segment and the first side is different from the distance between the second segment and the second side.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: March 23, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Bing-Ru Song, Yi-Ho Chen, Chia-Pin Hsu, Chih-Wei Weng, Shin-Hua Chen, Chien-Lun Huang, Chao-Chun Chang, Shou-Jen Liu, Kun-Shih Lin, Nai-Wen Hsu, Yu-Cheng Lin, Shang-Yu Hsu, Yu-Huai Liao, Yi-Hsin Nieh, Shih-Ting Huang, Kuo-Chun Kao, Fu-Yuan Wu
  • Patent number: 10948801
    Abstract: A hybrid lens is disclosed including optically coupled varifocal lens and adaptive lens. The varifocal lens is configured for varying optical power of the hybrid lens, and an adaptive lens includes a voltage-controlled element for varying optical power of the adaptive lens in coordination with varying the optical power of the varifocal lens and responsive to variation of the optical power of the hybrid lens, for lessening an optical aberration of the hybrid lens. The hybrid lens may be used in head-mounted displays e.g. for lessening a vergence-accommodation conflict.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: March 16, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Lu Lu, Wai Sze Tiffany Lam, Yusufu Njoni Bamaxam Sulai
  • Patent number: 10942427
    Abstract: Provided are a lens unit and a camera system capable of reducing an amount of rotation of a stop ring in a case of switching between a manual exposure mode and an auto exposure mode. The lens unit 200 includes an optical system 202 that includes at least one lens, a lens barrel 204 that houses the optical system, and a stop ring 208 that is rotatably disposed around the optical axis OA as an axis. The stop ring 208 includes a first indication area 218 and a second indication area 220. The first indication area 218 and the second indication area 220 respectively includes auto indications 218A and 220A corresponding to the auto exposure mode and exposure amount indications 218B and 220B corresponding to the manual exposure mode. The first indication area 218 and the second indication area 220 have periodicity.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: March 9, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Shinichiro Fujiki
  • Patent number: 10942297
    Abstract: An optical output device comprises a plate having at least one surface formed as an array of tessellated lenses. The tessellated lenses comprise at least first and second regions of regular hexagonal lens tessellation, wherein the first and second regions are slanted with respect to each other. By removing full periodicity in this way, but maintaining localized periodicity, visible non-uniformities are reduced in both color and intensity. The optical output device does not need to be illuminated uniformly to generate an output without visible intensity or color edges.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: March 9, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Oliver Dross, Michel Cornelis Josephus Marie Vissenberg
  • Patent number: 10942298
    Abstract: A reflecting unit is provided, including an optical member holder, an optical member, a frame, a first bearing member, a first hinge, and a first driving module. The optical member is disposed on the optical member holder. The first bearing member is disposed on the frame or the optical member holder. The first hinge is pivotally connected to the optical member holder and the frame. The first driving module can drive the optical member holder to rotate relative to the frame. When the optical member holder rotates relative to the frame, the first hinge rotates relative to the optical member holder or the frame via the first bearing member.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: March 9, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: Kai-Jing Fu, Liang-Ting Ho, Chao-Chang Hu, Sin-Jhong Song
  • Patent number: 10935818
    Abstract: Automated control of visual light transmission through one or more vehicle windows is provided, which includes providing a control system for controlling visual light transmission through the window, where the window includes smart glass, with visual light transmission through the window being dynamically adjustable by the control system. The control system receives a video stream from at least one video camera associated with the vehicle, and analyzes the video stream for a specified event. Based on detecting the event, the control system triggers an action to adjust the visual light transmission through the window.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: March 2, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ho-Yiu Lam, Eric V. Kline
  • Patent number: 10936059
    Abstract: The present disclosure provides systems and methods for gaze tracking. The methods for gaze tracking may comprise (a) collecting video data of a subject's face using a device, and (b) processing the video data to track the subject's gaze. The video data may comprise a plurality of images containing depth information. The methods for gaze tracking may track the gaze of the subject without requiring any prior or subsequent calibration of the subject's gaze to a predefined calibration point in space having a known location. The systems for gaze tracking may be configured to implement the methods for gaze tracking.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: March 2, 2021
    Assignee: Cajal Corporation
    Inventor: Richard Stoner
  • Patent number: 10925482
    Abstract: A dosimetry system may comprise a film stack and a laser system for applying a laser beam to the film stack. The system may further comprise an interferometry system configured to acquire from the film stack a first interferometric dataset comprising a first composite signal and a subsequent interferometric dataset comprising a subsequent composite signal. The system may also include a processor for comparing the first and subsequent composite signals, wherein a difference between the first and subsequent composite signals indicates a change in the film stack thickness. A dosimetry method may comprise applying a laser beam to such a film stack, acquiring the first and subsequent interferometric datasets, comparing them to detect a change in the film stack thickness, and ceasing to apply the laser beam to the film stack if the change in the film stack thickness exceeds a predetermined threshold.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: February 23, 2021
    Assignee: LUTRONIC VISION INC
    Inventors: Seth Adrian Miller, Mark Meloni
  • Patent number: 10928633
    Abstract: Aspects of the disclosed apparatuses, methods, and systems provide arrangement of the visual components of an augmented or virtual display system with optimized telecentricity, focal depth, and wide FOV. The visual components may include a light source and a corresponding optical element.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: February 23, 2021
    Assignee: Meta View, Inc.
    Inventors: Sheng Yuan, Jie Xiang, Ashish Ahuja
  • Patent number: 10921579
    Abstract: A security device that elicits at least one dynamic response upon acceleration, or upon change of orientation with respect to gravity, wherein the dynamic response continues after cessation of the acceleration or the change of orientation. In addition, the dynamic response can be optical, such that it is visually observable by an unaided human eye. Alternatively, the response can be machine readable. In some cases, the dynamic response has duration of from about 0.01 s to about 100 s, or from about Is to about 10 s.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: February 16, 2021
    Assignees: National Research Council of Canada, Bank of Canada
    Inventors: Daniel Brassard, Lidija Malic, Keith J. Morton, Teodor Veres, Charles D. MacPherson, Theodoros Garanzotis
  • Patent number: 10914946
    Abstract: A head-up display system with an imaging unit for generating an image on a projection surface is described. The projection surface is provided for reflecting at least a part of the image. The projection surface includes a transparent screen having a transparent substrate and at least one electrically conductive coating with at least one functional layer on at least one surface of the transparent substrate.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: February 9, 2021
    Assignee: SAINT-GOBAIN GLASS FRANCE
    Inventors: Klaus Fischer, Matthias Kuehne, Sandra Hornschuh, Roberto Zimmermann, Martin Henseler, Dagmar Schaefer, Michael Jansen
  • Patent number: 10901289
    Abstract: A spatial light modulator having an active and a peripheral region, wherein coherent light impinges on both regions, but due to a higher spatial frequency of pixels within the peripheral region, and due to biasing the peripheral region pixels to maximize dispersion of reflected light therefrom, a majority of light reflected from the peripheral region is directed outside of a three-dimensional target window. A spatial frequency of the pixels in the active region is selected such that maximum dispersion of reflected light from the active region is incident within the three-dimensional target window. In this way, incident light that does not reflect from the active region need not be absorbed, or blocked, but instead can be reflected, but still fails to interfere with the target window.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: January 26, 2021
    Assignee: BOULDER NONLINEAR SYSTEMS, INC.
    Inventor: Douglas J. McKnight
  • Patent number: 10901149
    Abstract: A beam steering device and a system using the same are provided. The beam steering device includes a plurality of transmission type optical modulation devices provided to steer an incident beam in different directions, wherein each of the plurality of transmission type optical modulation devices includes: a phase modulator including a nanoantenna in which a plurality of nanostructure rows are arranged. Each of the nanostructure rows includes a plurality of nanostructures connected to each other. A meta surface includes the plurality of nanostructure rows. Each of the transmission type optical modulation devices also includes a plurality of drivers provided which independently apply an electric signal to each of the nanostructure rows to control a phase change thereof.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sunil Kim, Junghyun Park, Byounglyong Choi
  • Patent number: 10901287
    Abstract: The present invention provides driving methods for electrophoretic color display devices. The backplane system used for the driving methods is found to be simpler which renders color display devices more cost effective. More specifically, the driving method comprises first driving all pixels towards a color state by modulating only the common electrode, followed by driving all pixels towards their desired color states by maintaining the common electrode grounded and applying different voltages to the pixel electrodes.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: January 26, 2021
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Chi-Mao Hung