Patents by Inventor Doug CROSS

Doug CROSS 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).

  • Patent number: 11937403
    Abstract: A heatsink may include a base and a plurality of fins, configured to be disposed in an air flow, that extend orthogonally from the base. The plurality of fins may have at least one of a height, an inter-fin spacing, or a thickness that varies in a direction of the air flow.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 19, 2024
    Assignee: Lumentum Operations LLC
    Inventors: Roozbeh Ahmadi, Dean Flockton, Doug Cross
  • Patent number: 11728611
    Abstract: An optical device may include an enclosure including an optical aperture and a plurality of optical components positioned within the enclosure, where the plurality of optical components are to emit and/or receive light through the optical aperture. The optical device may include at least one heating element or cooling element to provide an isothermal environment to the plurality of optical components, where the at least one heating element or cooling element is thermally coupled with the enclosure.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: August 15, 2023
    Assignee: Lumentum Operations LLC
    Inventors: Roozbeh Ahmadi, Nenad Duricic, Doug Cross
  • Patent number: 11726280
    Abstract: An opto-mechanical assembly includes a first thermal control element disposed on a region of a first section of an enclosure; a second thermal control element disposed on a region of a second section of the enclosure; and an optical element that includes a first portion and a second portion. The first thermal control element is configured to heat the first portion of the optical element and to cause the first portion of the optical element to be associated with a first temperature, and the second thermal control element is configured to heat the second portion of the optical element and to cause the second portion of the optical element to be associated with a second temperature. This causes a difference between the first temperature and the second temperature to satisfy a temperature difference threshold. Accordingly, this also causes a temperature gradient along an axis of the optical element to satisfy a temperature gradient threshold.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: August 15, 2023
    Assignee: Lumentum Operations LLC
    Inventors: Roozbeh Ahmadi, Nenad Duricic, Shane H. Woodside, Doug Cross, Andrew Telford
  • Publication number: 20220326458
    Abstract: An opto-mechanical assembly includes a first thermal control element disposed on a region of a first section of an enclosure; a second thermal control element disposed on a region of a second section of the enclosure; and an optical element that includes a first portion and a second portion. The first thermal control element is configured to heat the first portion of the optical element and to cause the first portion of the optical element to be associated with a first temperature, and the second thermal control element is configured to heat the second portion of the optical element and to cause the second portion of the optical element to be associated with a second temperature. This causes a difference between the first temperature and the second temperature to satisfy a temperature difference threshold. Accordingly, this also causes a temperature gradient along an axis of the optical element to satisfy a temperature gradient threshold.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 13, 2022
    Inventors: Roozbeh AHMADI, Nenad DURICIC, Shane H. WOODSIDE, Doug CROSS, Andrew TELFORD
  • Publication number: 20220229260
    Abstract: An optical bench may include an integrated heater. The integrated heater may include a substrate and a heating element disposed onto the substrate. The heating element may include at least one electrical trace. The integrated heater may be associated with a non-monolithic shape configured to cause the heating element to heat an optical device disposed in proximity to the optical bench with a temperature gradient of less than a threshold. The integrated heater may be disposed onto at least one of a surface of the optical bench or a surface of an optical component of the optical device.
    Type: Application
    Filed: April 4, 2022
    Publication date: July 21, 2022
    Inventors: Roozbeh AHMADI, Doug CROSS, Nenad DURICIC, Martin MATTHEWS
  • Publication number: 20210127524
    Abstract: A heatsink may include a base and a plurality of fins, configured to be disposed in an air flow, that extend orthogonally from the base. The plurality of fins may have at least one of a height, an inter-fin spacing, or a thickness that varies in a direction of the air flow.
    Type: Application
    Filed: March 27, 2020
    Publication date: April 29, 2021
    Inventors: Roozbeh AHMADI, Dean FLOCKTON, Doug CROSS
  • Publication number: 20210063685
    Abstract: An optical device may include an enclosure including an optical aperture and a plurality of optical components positioned within the enclosure, where the plurality of optical components are to emit and/or receive light through the optical aperture. The optical device may include at least one heating element or cooling element to provide an isothermal environment to the plurality of optical components, where the at least one heating element or cooling element is thermally coupled with the enclosure.
    Type: Application
    Filed: December 12, 2019
    Publication date: March 4, 2021
    Inventors: Roozbeh AHMADI, Nenad DURICIC, Doug CROSS
  • Patent number: 10684441
    Abstract: A method may include identifying, by a device, a set of components of an optical device. The method may include determining, by the device, a set of design criteria based on the set of components of the optical device. The method may include identifying, by the device, an initial heater configuration based on the set of design criteria. The method may include determining, by the device, a set of optimization parameters for determining a target heater configuration based on the set of design criteria. The method may include performing, by the device and based on the set of optimization parameters, an optimization procedure to alter the initial heater configuration to determine the target heater configuration. The method may include providing, by the device, information identifying the target heater configuration based on performing the optimization procedure.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: June 16, 2020
    Assignee: Lumentum Operations LLC
    Inventors: Roozbeh Ahmadi, Doug Cross, Nenad Duricic, Martin Matthews
  • Publication number: 20190094481
    Abstract: A method may include identifying, by a device, a set of components of an optical device. The method may include determining, by the device, a set of design criteria based on the set of components of the optical device. The method may include identifying, by the device, an initial heater configuration based on the set of design criteria. The method may include determining, by the device, a set of optimization parameters for determining a target heater configuration based on the set of design criteria. The method may include performing, by the device and based on the set of optimization parameters, an optimization procedure to alter the initial heater configuration to determine the target heater configuration. The method may include providing, by the device, information identifying the target heater configuration based on performing the optimization procedure.
    Type: Application
    Filed: September 27, 2017
    Publication date: March 28, 2019
    Inventors: Roozbeh AHMADI, Doug CROSS, Nenad DURICIC, Martin MATTHEWS
  • Publication number: 20190094482
    Abstract: An optical bench may include an integrated heater. The integrated heater may include a substrate and a heating element disposed onto the substrate. The heating element may include at least one electrical trace. The integrated heater may be associated with a non-monolithic shape configured to cause the heating element to heat an optical device disposed in proximity to the optical bench with a temperature gradient of less than a threshold. The integrated heater may be disposed onto at least one of a surface of the optical bench or a surface of an optical component of the optical device.
    Type: Application
    Filed: September 27, 2017
    Publication date: March 28, 2019
    Inventors: Roozbeh AHMADI, Doug CROSS, Nenad DURICIC, Martin MATTHEWS
  • Publication number: 20180023662
    Abstract: The present invention relates to a flywheel apparatus for energy storage and recovery including a flywheel system coupled to a flywheel drive system. The flywheel system includes a housing with a chamber in which a flywheel on a shaft rotates. The shaft is mounted on the housing via at least one damper which may allow but constrain and/or damp movement of the flywheel and shaft relative to the housing. The flywheel system has a flywheel lubrication system. The flywheel drive system may have a different type of fluid from the flywheel system. The two fluids may be kept separate by a sealing arrangement. Movement of the flywheel shaft relative to the housing is accommodated by a link member which allows the flywheel shaft to move relative to the housing. The link member also prevents the sealing arrangement from becoming damaged or becoming ineffective, and may also act as a mechanical fuse.
    Type: Application
    Filed: February 11, 2016
    Publication date: January 25, 2018
    Inventors: Doug CROSS, Daniel R. JONES