Patents by Inventor Anping Liu

Anping Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220212976
    Abstract: Methods of manufacturing a ribbon can comprise identifying a location of a nonuniformity in a characteristic of a molten portion of a moving ribbon. The methods can further comprise impinging a deflected pulsed laser beam on a heating zone comprising a location of a nonuniformity in the molten portion of the ribbon. In some embodiments, the heating zone can be elongated in a travel direction of a travel path of the moving ribbon. In some embodiments, the pulsed laser beam can be reflected off a reflective surface of a polygonal reflecting device rotating at a substantially constant angular velocity. In some embodiments, the methods can include impinging the deflected pulsed laser beam on a sensing device to generate a signal. The methods can further comprise calibrating a location of the deflected pulsed laser beam based on the signal from the sensing device.
    Type: Application
    Filed: April 1, 2020
    Publication date: July 7, 2022
    Inventors: Xinghua Li, Anping Liu
  • Patent number: 11327223
    Abstract: A multimode optical fiber having a core region. The core region includes silica, has an outer radius r1, and has a maximum relative refractive index of about 1.5% or less. Additionally, the multimode optical fiber is configured to have an effective bandwidth of about 4.7 GHz-Km or greater for an excited portion of the core region that has a diameter greater than 50 microns, the effective bandwidth being at a wavelength that is within a range of between about 800 and about 1370 nm.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: May 10, 2022
    Assignee: Corning Incorporated
    Inventors: Xin Chen, Kangmei Li, Ming-Jun Li, Anping Liu, Simit Mayank Patel, Jeffery Scott Stone
  • Publication number: 20220134475
    Abstract: Embodiments of the present disclosure include a optical assembly comprising: an axicon lens with spherical aberration configured to generate the laser beam focal line, an optical element set spaced part from the optical lens, and a focusing optical element spaced apart from the optical element set, wherein the axicon lens and the optical element set are translatable relative to each other along the laser beam propagation direction and wherein the focusing optical element is in a fixed position along the laser beam propagation direction.
    Type: Application
    Filed: October 26, 2021
    Publication date: May 5, 2022
    Inventors: Andreas Simon Gaab, Anping Liu, Jian-Zhi Jay Zhang
  • Publication number: 20220080531
    Abstract: A method includes directing a laser beam onto a phase-adjustment device such that the laser beam downstream the phase-adjustment device is a modified Airy beam having a modified Airy beam focal region having a main lobe and a plurality of side lobes. The main lobe has a lobe aspect ratio of 1.2 or greater.
    Type: Application
    Filed: August 17, 2021
    Publication date: March 17, 2022
    Inventors: Anping Liu, Craig John Mancusi Ungaro
  • Publication number: 20220081342
    Abstract: A method for processing a transparent workpiece that includes directing a laser beam output by a beam source onto a phase-adjustment device such that the laser beam downstream the phase-adjustment device is an Airy beam and directing the Airy beam onto a surface of the transparent workpiece. The Airy beam forms an Airy beam focal region in the transparent workpiece, the Airy beam of the Airy beam focal region having a maximum intensity of 100 TW/cm2 or less, the Airy beam of the Airy beam focal region induces absorption in the transparent workpiece, the induced absorption producing a curved defect in the transparent workpiece.
    Type: Application
    Filed: August 17, 2021
    Publication date: March 17, 2022
    Inventors: Anping Liu, Craig John Mancusi Ungaro
  • Patent number: 11256039
    Abstract: A method of cleaving an optical fiber comprises inserting the optical fiber through a bore of a holding member, securing the optical fiber to the holding member with a bonding agent, operating at least one laser to emit at least one laser beam, and directing the at least one laser beam from the at least one laser to the end face of the holding member. At least a portion of the at least one laser beam reflects off the end face of the holding member and is thereafter incident on an end portion of the optical fiber. The at least one laser beam cleaves the end portion of the optical fiber less than 20 ?m from the end face of the holding member. Related systems are also disclosed.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: February 22, 2022
    Assignee: Corning Optical Communications LLC
    Inventors: Joel Patrick Carberry, Minghan Chen, Ming-Jun Li, Anping Liu, Barada Kanta Nayak
  • Publication number: 20210325599
    Abstract: A multimode optical fiber having a core region. The core region includes silica, has an outer radius r1, and has a maximum relative refractive index of about 1.5% or less. Additionally, the multimode optical fiber is configured to have an effective bandwidth of about 4.7 GHz-Km or greater for an excited portion of the core region that has a diameter greater than 50 microns, the effective bandwidth being at a wavelength that is within a range of between about 800 and about 1370 nm.
    Type: Application
    Filed: March 29, 2021
    Publication date: October 21, 2021
    Inventors: Xin Chen, Kangmei Li, Ming-Jun Li, Anping Liu, Simit Mayank Patel, Jeffery Scott Stone
  • Publication number: 20210319197
    Abstract: The present disclosure provides an apparatus for optically capturing images using a display screen. The apparatus includes a sensor panel having a sensor substrate and an array of photosensitive pixels on an upper surface of the sensor substrate; a display panel disposed on the upper surface of the sensor substrate, the display panel having a display substrate, a plurality of display pixels on a first surface of the display substrate, and a black matrix on the first surface, wherein the black matrix includes a plurality of optical elements, each being located between neighboring ones of the display pixels, and wherein the sensor panel is in contact with a second surface of the display substrate opposing the first surface; and a cover sheet on the first surface of the display substrate. The black matrix includes a conductive material electrically coupled to a common electrode of the display panel.
    Type: Application
    Filed: November 14, 2017
    Publication date: October 14, 2021
    Inventors: Hsuanyeh Chang, Zachary Michael Thomas, Anping Liu
  • Publication number: 20210263250
    Abstract: An optical cable and method for forming an optical cable is provided. The cable includes a cable jacket including an inner surface defining a channel and an outer surface and also includes a plurality of optical fibers located within the channel. The cable includes a seam within the cable jacket that couples together opposing longitudinal edges of a wrapped thermoplastic sheet which forms the cable jacket and maintains the cable jacket in the wrapped configuration around the plurality of optical fibers. The method includes forming an outer cable jacket by wrapping a sheet of thermoplastic material around a plurality of optical core elements. The method includes melting together portions of thermoplastic material of opposing longitudinal edges of the wrapped sheet such that a seam is formed holding the sheet of thermoplastic material in the wrapped configuration around the core elements.
    Type: Application
    Filed: May 13, 2021
    Publication date: August 26, 2021
    Inventors: Joel Patrick Carberry, David Wesley Chiasson, Anping Liu, Eric Raymond Logan, Barada Kanta Nayak, Christopher Mark Quinn
  • Patent number: 10941070
    Abstract: Methods and apparatus provide for: cutting a thin glass sheet along a curved cutting line, where the curve is divided into a plurality of line segments; applying a laser beam and continuously moving the laser beam along the cutting line; applying a cooling fluid simultaneously with the application of the laser beam in order to propagate a fracture in the glass sheet along the cutting line; and varying one or more cutting parameters as the laser beam moves from one of the plurality of line segments to a next one of the plurality of line segments, wherein the one or more cutting parameters include at least one of: (i) a power of the laser beam, (ii) a speed of the movement, (iii) a pressure of the cooling fluid, and (iv) a flow rate of the cooling fluid.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: March 9, 2021
    Assignee: CORNING INCORPORATED
    Inventors: Andrew Stephen Altman, Carlton Wesley Cole, Todd Benson Fleming, Anping Liu, James Joseph Watkins
  • Publication number: 20210053858
    Abstract: A control apparatus for controlling a thickness of a substrate, such as a glass ribbon. The control apparatus comprises a laser assembly and a shielding assembly. The laser assembly generates an elongated laser beam traveling in a propagation direction along an optical path. The shielding assembly comprises at least one shield selectively disposed in the optical path. The shield is configured to decrease an optical intensity of a region of the elongated laser beam. The shielding assembly is configured to change an intensity profile of the elongated laser beam from an initial intensity profile to a targeted intensity profile. A desired targeted intensity profile can be dictated by an arrangement of the shield(s) relative to the optical path, and can be selected to affect a temperature change at portions of the substrate determined to benefit from a reduction in thickness.
    Type: Application
    Filed: March 5, 2019
    Publication date: February 25, 2021
    Inventors: Anatoli Anatolyevich Abramov, Anping Liu, Michael Yoshiya Nishimoto, William Anthony Whedon, Jae Hyun Yu
  • Patent number: 10843956
    Abstract: Disclosed herein are transparent articles and methods and systems for processing transparent articles. Systems for processing transparent articles, e.g. cutting glass, may include at least one initial laser and at least one polarizing beam splitter, where the polarizing beam splitter is configured to split an initial laser beam into a plurality of laser beams, and wherein the plurality of laser beams are useful for processing transparent articles. Methods for processing transparent articles comprise creating at least one flaw in the transparent articles with a plurality of laser beams.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: November 24, 2020
    Assignee: Corning Incorporated
    Inventors: Anping Liu, Leonard Thomas Masters, Alexander Mikhailovich Streltsov
  • Patent number: 10830943
    Abstract: An optical fiber for converting a Gaussian laser beam into a Bessel laser beam may include a first segment optically coupled to a second segment with a transition region, the first segment having a first outer diameter greater than a second outer diameter of the second segment. The first segment may include a first core portion with a first cladding portion extending around the first core portion. The second segment may include a second core portion with a second cladding portion extending around the second core portion. The optical fiber may have a non-axisymmetric refractive index profile or may be coupled to an end cap with a non-axisymmetric refractive index profile.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: November 10, 2020
    Assignee: Corning Incorporated
    Inventors: Ming-Jun Li, Anping Liu
  • Publication number: 20200241213
    Abstract: A method of cleaving an optical fiber comprises inserting the optical fiber through a bore of a holding member, securing the optical fiber to the holding member with a bonding agent, operating at least one laser to emit at least one laser beam, and directing the at least one laser beam from the at least one laser to the end face of the holding member. At least a portion of the at least one laser beam reflects off the end face of the holding member and is thereafter incident on an end portion of the optical fiber. The at least one laser beam cleaves the end portion of the optical fiber less than 20 ?m from the end face of the holding member. Related systems are also disclosed.
    Type: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Inventors: Joel Patrick Carberry, Minghan Chen, Ming-Jun Li, Anping Liu, Barada Kanta Nayak
  • Patent number: 10688599
    Abstract: A method for laser processing a transparent workpiece includes forming a contour line having defects in the transparent workpiece, which includes directing a pulsed laser beam oriented along a beam pathway through a beam converting element and through a phase modifying optical element such that the portion of the pulsed laser beam directed into the transparent workpiece includes a phase shifted focal line having a cross-sectional phase contour that includes phase contour ridges induced by the phase modifying optical element and extending along phase ridge lines. Moreover, the phase shifted focal line generates an induced absorption within the transparent workpiece to produce a defect within the transparent workpiece including a central defect region and a radial arm that extends outward from the central defect region in a radial defect direction oriented within 20° of the phase ridge lines of the phase shifted focal line.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: June 23, 2020
    Assignee: Corning Incorporated
    Inventors: Anping Liu, Matthew Ryan Ross
  • Patent number: 10620395
    Abstract: A system and method for marking a moving surface of a fiber optic cable is provided. The system includes a supply of the fiber optic cable, a laser generating device configured to generate a laser beam that forms markings by interacting with the material of the moving surface of the fiber optic cable. The system includes a movement device moving the fiber optic cable through the system at a speed of at least 50 m per minute. The system includes a laser directing device located in the path of the laser beam and configured to change the path of the laser beam to direct the laser beam to a plurality of discrete locations on the moving surface to form a series of marks on the moving surface. The moving surface includes a plurality of tracking indicia to allow the position of the moving surface to be determined.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: April 14, 2020
    Assignee: Corning Optical Communications LLC
    Inventors: Joel Patrick Carberry, Anping Liu, Eric John Mozdy, Barada Kanta Nayak
  • Patent number: 10610970
    Abstract: A method of forming an optical surface on an end portion of an optical fiber comprises inserting the optical fiber through a ferrule bore of a ferrule so that the end portion extends past an end face on the ferrule. At least one laser beam is emitted from at least one laser and directed to the end face of the ferrule. The at least one laser beam is shaped into an ellipse and comprises at least 90 percent linearly-polarized light incident on the end face of the ferrule as S-polarized light. The at least one laser is operated so that the S-polarized light reflects off the end face of the ferrule and cleaves the end portion of the optical fiber.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: April 7, 2020
    Assignee: Corning Optical Communications LLC
    Inventors: Joel Patrick Carberry, Anping Liu, Barada Kanta Nayak
  • Patent number: 10579195
    Abstract: The present disclosure provides an optical-capacitive sensor panel device. In one aspect, the panel device includes a transparent substrate having a first surface; an optical sensor array formed on the first surface of the transparent substrate, the optical sensor array including a plurality of photosensitive pixels spaced apart from each other and arranged on the first surface to form a lattice structure; a plurality of row electrodes formed on the optical sensor array and electrically coupled to a first group of the photosensitive pixels; a plurality of column electrodes formed on the optical sensor array crossing the row electrodes and electrically coupled to a second group of the photosensitive pixels; and an insulating layer formed between the row electrodes and the column electrodes.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: March 3, 2020
    Assignee: Bidirectional Display, Inc.
    Inventors: Hsuan-Yeh Chang, Anping Liu
  • Patent number: 10494290
    Abstract: Systems and methods utilizing two Airy beams to process a non-rounded edge of a glass substrate or to cleave a glass substrate are disclosed. The method includes generating first and second Airy beams and causing them to cross at a crossing to define a curved intensity profile in the vicinity of the crossing point where the first and second Airy beams have respective local radii of curvature RA and RB. The method also includes scanning the curved intensity profile either along the non-rounded outer edge or through the glass along a scan path to form on the glass substrate a rounded outer edge having a radius of curvature RE that is smaller than the first and second local radii of curvature RA and RB. The radius of curvature RE can be adjusted by changing a beam angle between the first and second Airy beams.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: December 3, 2019
    Assignee: Corning Incorporated
    Inventors: Minghan Chen, Ming-Jun Li, Anping Liu, Gaozhu Peng
  • Patent number: 10495530
    Abstract: Prism coupling systems and methods for characterizing curved parts are disclosed. A coupling surface of a coupling prism is interfaced to the curved outer surface of the curved part to define a coupling interface. Measurement light is directed through the coupling prism and to the interface, wherein the measurement light has a width of 3 mm or less. TE and TM mode spectra reflected from the interface are digitally captured. These mode spectra are processed to determine at least one characteristic of the curved part, such as the stress profile, compressive stress, depth of layer, refractive index profile and birefringence.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: December 3, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Anping Liu, Rostislav Vatchev Roussev, Robert Anthony Schaut