Patents by Inventor Vikraman Parthiban

Vikraman Parthiban 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).

  • STACKED WAVEGUIDES HAVING DIFFERENT DIFFRACTION GRATINGS FOR COMBINED FIELD OF VIEW
    Publication number: 20250138234
    Abstract: In one aspect, an optical device comprises a plurality of waveguides formed over one another and having formed thereon respective diffraction gratings, wherein the respective diffraction gratings are configured to diffract visible light incident thereon into respective waveguides, such that visible light diffracted into the respective waveguides propagates therewithin. The respective diffraction gratings are configured to diffract the visible light into the respective waveguides within respective field of views (FOVs) with respect to layer normal directions of the respective waveguides.
    Type: Application
    Filed: December 10, 2024
    Publication date: May 1, 2025
    Inventors: Chulwoo Oh, Vikraman Parthiban
  • Stacked waveguides having different diffraction gratings for combined field of view
    Patent number: 12204129
    Abstract: In one aspect, an optical device comprises a plurality of waveguides formed over one another and having formed thereon respective diffraction gratings, wherein the respective diffraction gratings are configured to diffract visible light incident thereon into respective waveguides, such that visible light diffracted into the respective waveguides propagates therewithin. The respective diffraction gratings are configured to diffract the visible light into the respective waveguides within respective field of views (FOVs) with respect to layer normal directions of the respective waveguides. The respective FOVs are such that the plurality of waveguides are configured to diffract the visible light within a combined FOV that is continuous and greater than each of the respective FOVs.
    Type: Grant
    Filed: September 21, 2023
    Date of Patent: January 21, 2025
    Assignee: Magic Leap, Inc.
    Inventors: Chulwoo Oh, Vikraman Parthiban
  • STACKED WAVEGUIDES HAVING DIFFERENT DIFFRACTION GRATINGS FOR COMBINED FIELD OF VIEW
    Publication number: 20240012191
    Abstract: In one aspect, an optical device comprises a plurality of waveguides formed over one another and having formed thereon respective diffraction gratings, wherein the respective diffraction gratings are configured to diffract visible light incident thereon into respective waveguides, such that visible light diffracted into the respective waveguides propagates therewithin. The respective diffraction gratings are configured to diffract the visible light into the respective waveguides within respective field of views (FOVs) with respect to layer normal directions of the respective waveguides.
    Type: Application
    Filed: September 21, 2023
    Publication date: January 11, 2024
    Inventors: Chulwoo Oh, Vikraman Parthiban
  • Stacked waveguides having different diffraction gratings for combined field of view
    Patent number: 11803003
    Abstract: In one aspect, an optical device comprises a plurality of waveguides formed over one another and having formed thereon respective diffraction gratings, wherein the respective diffraction gratings are configured to diffract visible light incident thereon into respective waveguides, such that visible light diffracted into the respective waveguides propagates therewithin. The respective diffraction gratings are configured to diffract the visible light into the respective waveguides within respective field of views (FOVs) with respect to layer normal directions of the respective waveguides. The respective FOVs are such that the plurality of waveguides are configured to diffract the visible light within a combined FOV that is continuous and greater than each of the respective FOVs.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: October 31, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Chulwoo Oh, Vikraman Parthiban
  • STACKED WAVEGUIDES HAVING DIFFERENT DIFFRACTION GRATINGS FOR COMBINED FIELD OF VIEW
    Publication number: 20220155525
    Abstract: In one aspect, an optical device comprises a plurality of waveguides formed over one another and having formed thereon respective diffraction gratings, wherein the respective diffraction gratings are configured to diffract visible light incident thereon into respective waveguides, such that visible light diffracted into the respective waveguides propagates therewithin. The respective diffraction gratings are configured to diffract the visible light into the respective waveguides within respective field of views (FOVs) with respect to layer normal directions of the respective waveguides.
    Type: Application
    Filed: February 1, 2022
    Publication date: May 19, 2022
    Inventors: Chulwoo Oh, Vikraman Parthiban
  • Stacked waveguides having different diffraction gratings for combined field of view
    Patent number: 11269144
    Abstract: In one aspect, an optical device comprises a plurality of waveguides formed over one another and having formed thereon respective diffraction gratings, wherein the respective diffraction gratings are configured to diffract visible light incident thereon into respective waveguides, such that visible light diffracted into the respective waveguides propagates therewithin. The respective diffraction gratings are configured to diffract the visible light into the respective waveguides within respective field of views (FOVs) with respect to layer normal directions of the respective waveguides. The respective FOVs are such that the plurality of waveguides are configured to diffract the visible light within a combined FOV that is continuous and greater than each of the respective FOVs.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: March 8, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Chulwoo Oh, Vikraman Parthiban