Patents Examined by Brandi N Thomas
  • Electronic device stack assembly
    Patent number: 11016234
    Abstract: An electronic device includes a stack assembly and a cover glass. The stack assembly includes an electrophoretic display sub-assembly for rendering content, a front light sub-assembly comprising a light guide, a light FPC, and a plurality of light sources, and a capacitive touch sensing sub-assembly for detecting touch inputs. A yellow-pigmented tape is applied over the light sources and an edge of the light guide. A stiffener member is coupled to the light FPC opposite the yellow-pigmented tape.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: May 25, 2021
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Siddharth Gupta, Jerry Yee-Ming Chung, Hany Mounir Ghali, Robert L. D. Zenner, Juho Ilkka Jalava, Sherman Shwe Win Tan
  • Actuator with shape-memory element
    Patent number: 11016261
    Abstract: An actuator for adjusting an element to be moved in a beam path of an optical arrangement contains the element to be moved, a carrier and at least one SM element, the SM element being connected to the element to be moved and designed such that it is supported on the carrier, so that when the dimension of the SM element changes, a directed force effect is produced between the element to be moved and the carrier.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: May 25, 2021
    Assignee: CARL ZEISS MICROSCOPY GMBH
    Inventors: Benjamin John, Michael Schulz
  • Optical beam processing device
    Patent number: 11009767
    Abstract: A light transmissive optical component comprising an electroactive material layer structure having a controlled deformation. When actuating the component, different relative thickness changes are implemented at different regions of the electroactive material layer thereby providing a non-uniform change in an optical function between those different regions.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 18, 2021
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Mark Thomas Johnson, Franciscus Johannes Gerardus Hakkens, Achim Hilgers
  • Head-up display apparatus
    Patent number: 11009700
    Abstract: A head-up display apparatus reduces the trouble caused by horizontal separation of a display image. The head-up display apparatus (1) includes a display source (2) inside an instrument panel (6), an opening (7) on the instrument panel (6), display light from the display source (2) being emitted through the opening (7), and an opening cover (5) provided around the opening (7). At horizontal ends (51, 53) of the opening cover (5), a change in color or reflectance is provided from the opening sides (52a, 54a) towards the outer sides (52b, 54b).
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: May 18, 2021
    Assignee: CALSONIC KANSEI CORPORATION
    Inventors: Kazuo Arai, Hiromasa Miura
  • Reverse-order crossed pancake lens with index gradient structure
    Patent number: 11002955
    Abstract: In various embodiments, a reverse-order crossed pancake lens block having an index gradient structure may include an optical element configured to transmit at least a portion of radiation from a radiation source. Moreover, the pancake lens block may include an index-gradient structure that is spaced at a distance from the optical element, the distance configured to provide an optical path length in the pancake lens block. The index-gradient structure may be configured to provide an anti-reflective property to at least one surface of the optical element.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: May 11, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Gary Dean Sharp, Jacques Gollier
  • High-rate high-swing drive circuit applied to silicon photonic modulator
    Patent number: 10996495
    Abstract: A high-rate high-swing drive circuit applied to a silicon photonic modulator is disclosed. The drive circuit is connected to a drive pre-stage circuit and a modulator load. The drive circuit includes at least one output circuit, and the output circuit includes: a first inverter, a first voltage bias module, a second inverter, a second voltage bias module, and an inductor. The drive circuit formed by using such a circuit connection increases an output swing of a drive while ensuring a high rate.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 4, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Wenrui Zhu, David Zhang, Lei Zhao
  • Apparatuses and methods for determining tear film break-up time and/or for detecting lid margin contact and blink rates, particularly for diagnosing, measuring, and/or analyzing dry eye conditions and symptoms
    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
  • Electrophoretic dispersion liquid, production method of electrophoretic dispersion liquid, electrophoretic sheet, electrophoretic device and electronic apparatus
    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
  • Controlling transitions in optically switchable devices
    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
  • Ophthalmologic device and pupil state measuring method
    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
  • Nanoparticle dispersion for increasing optical index of refraction
    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
  • Driving mechanism
    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
  • Miniaturized mobile, low cost optical coherence tomography system for home based ophthalmic applications
    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
  • Hybrid varifocal lens
    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
  • Optical output device and design method
    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
  • Reflecting unit
    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
  • Lens unit and camera system
    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
  • Systems and methods for gaze tracking
    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
  • Event-based, automated control of visual light transmission through vehicle window
    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
  • Systems and methods for measuring postlens tear film thickness
    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