Patents by Inventor Wenlin Jin

Wenlin Jin 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: 20210242807
    Abstract: A linear comb drive may include a stator. The linear comb drive may include a rotor. At least one of the stator or the rotor may include a comb with one or more horizontally-extending fingers that have a tooth-shape formed by one or more prongs that extend vertically from the one or more fingers in a plane formed by the one or more fingers.
    Type: Application
    Filed: June 26, 2020
    Publication date: August 5, 2021
    Inventors: Wenlin Jin, Gonzalo WILLS
  • Publication number: 20210239966
    Abstract: A vertical comb drive assembly may include a rotor assembly. The rotor assembly may include a comb anchor to attach the rotor assembly to a base, a comb rotor attached to the comb anchor, and a movable element attached to the comb rotor. The vertical comb drive assembly may include a stator assembly. The stator assembly may include a plate anchor to attach the stator assembly to the base, a plate, wherein the plate forms a comb stator, and a plate hinge to connect the plate to the plate anchor. The plate hinge and the plate may be configured for moving the plate from a first position where the comb rotor and the comb stator are both in a first plane to a second position where the comb rotor is in the first plane and the comb stator is in a second plane.
    Type: Application
    Filed: June 30, 2020
    Publication date: August 5, 2021
    Inventors: Wenlin JIN, Gonzalo WILLS
  • Publication number: 20210063542
    Abstract: An optical device may include a lens system. The optical device may include a first scanning component to receive an optical beam and to scan the lens system with the optical beam. The optical device may include a second scanning component to receive the optical beam from the lens system and to scan a field of view with the optical beam, where the lens system is positioned between the first scanning component and the second scanning component. The lens system may include a beam expander.
    Type: Application
    Filed: December 23, 2019
    Publication date: March 4, 2021
    Inventors: Jiamin ZHENG, Barrie P. KEYWORTH, Wenlin JIN
  • Publication number: 20210063727
    Abstract: A micro-sized optical device may comprise a mirror suspended on a set of hinges that are mounted to the substrate and that are configured to tilt the mirror about an axis, wherein a hinge of the set of hinges is a two-layer structure with a pivot point that aligns with a mass center of the mirror; and a three-layer comb actuator structure associated with the hinge of the set of hinges, wherein the three-layer comb actuator structure includes a rotor comb actuator, a first stator comb actuator, and a second stator comb actuator.
    Type: Application
    Filed: November 4, 2019
    Publication date: March 4, 2021
    Inventors: Wenlin JIN, Stephen BAGNALD, Gonzalo WILLS
  • Patent number: 10585331
    Abstract: A liquid crystal on substrate (LCOS) assembly may include an LCOS carrier. The LCOS assembly may include at least one thick layer on the LCOS carrier and associated with a threshold thickness. The threshold thickness may be at least 5 micrometers. The LCOS assembly may include a switching engine on the at least one thick layer. The switching engine may include an LCOS die and an LCOS cover glass to enclose an LCOS liquid. The LCOS assembly may be associated with a thermal sensitivity of less than 0.5 millidegrees of curvature per degree Celsius for a particular temperature range.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: March 10, 2020
    Assignee: Lumentum Operations LLC
    Inventors: Roozbeh Ahmadi, Wenlin Jin
  • Patent number: 10394015
    Abstract: A diffractive MEMS device has an in-plane binary reflective diffraction pattern formed in an outer surface of a tillable platform. The binary reflective diffraction pattern includes rectangular or trapezoidal ridges and valleys, or grooves, of a same depth. The binary reflective diffractive pattern has a high diffraction efficiency even though the surfaces of the “grooves” or “ridges” are not perpendicular to the incoming optical beam. The diffractive pattern is supported by a pair of torsional hinges and is tiltable by an electrostatic actuator. The electrostatic actuator can include at least one side electrode for linearization of dependence of tilt angle on the voltage applied to the actuator.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: August 27, 2019
    Assignee: Lumentum Operations LLC
    Inventors: John Michael Miller, Wenlin Jin
  • Publication number: 20190086762
    Abstract: A liquid crystal on substrate (LCOS) assembly may include an LCOS carrier. The LCOS assembly may include at least one thick layer on the LCOS carrier and associated with a threshold thickness. The threshold thickness may be at least 5 micrometers. The LCOS assembly may include a switching engine on the at least one thick layer. The switching engine may include an LCOS die and an LCOS cover glass to enclose an LCOS liquid. The LCOS assembly may be associated with a thermal sensitivity of less than 0.5 millidegrees of curvature per degree Celsius for a particular temperature range.
    Type: Application
    Filed: March 13, 2018
    Publication date: March 21, 2019
    Inventors: Roozbeh Ahmadi, Wenlin Jin
  • Publication number: 20170199374
    Abstract: A diffractive MEMS device has an in-plane binary reflective diffraction pattern formed in an outer surface of a tillable platform. The binary reflective diffraction pattern includes rectangular or trapezoidal ridges and valleys, or grooves, of a same depth. The binary reflective diffractive pattern has a high diffraction efficiency even though the surfaces of the “grooves” or “ridges” are not perpendicular to the incoming optical beam. The diffractive pattern is supported by a pair of torsional hinges and is tiltable by an electrostatic actuator. The electrostatic actuator can include at least one side electrode for linearization of dependence of tilt angle on the voltage applied to the actuator.
    Type: Application
    Filed: March 27, 2017
    Publication date: July 13, 2017
    Inventors: John Michael Miller, Wenlin JIN
  • Patent number: 9606273
    Abstract: A diffractive MEMS device has an in-plane binary reflective diffraction pattern formed in an outer surface of a tiltable platform. The binary reflective diffraction pattern includes rectangular or trapezoidal ridges and valleys, or grooves, of a same depth. The binary reflective diffractive pattern has a high diffraction efficiency even though the surfaces of the “grooves” or “ridges” are not perpendicular to the incoming optical beam. The diffractive pattern is supported by a pair of torsional hinges and is tiltable by an electrostatic actuator. The electrostatic actuator can include at least one side electrode for linearization of dependence of tilt angle on the voltage applied to the actuator.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 28, 2017
    Assignee: Lumentum Operations LLC
    Inventors: John Michael Miller, Wenlin Jin
  • Patent number: 9285538
    Abstract: A wavelength selective device including an arrayed waveguide grating is disclosed. The wavelength selective device includes a MEMS mirror, which couples light from an input port to an elongate aperture of an input star coupler or slab of the arrayed waveguide grating. A controller tilts the MEMS mirror in response to a sensed temperature change of the arrayed waveguide grating, thereby lessening a sensitivity of the arrayed waveguide grating to the temperature change. The MEMS mirror can also be tilted to shift wavelengths of the wavelength channels of the arrayed waveguide grating by pre-defined amounts upon receiving a corresponding remote command.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: March 15, 2016
    Assignee: Lumentum Operations LLC
    Inventors: Jinxi Shen, Barthelemy Fondeur, Wenlin Jin, David J. Chapman, Niki Liu
  • Publication number: 20140112621
    Abstract: A wavelength selective device including an arrayed waveguide grating is disclosed. The wavelength selective device includes a MEMS mirror, which couples light from an input port to an elongate aperture of an input star coupler or slab of the arrayed waveguide grating. A controller tilts the MEMS mirror in response to a sensed temperature change of the arrayed waveguide grating, thereby lessening a sensitivity of the arrayed waveguide grating to the temperature change. The MEMS mirror can also be tilted to shift wavelengths of the wavelength channels of the arrayed waveguide grating by pre-defined amounts upon receiving a corresponding remote command.
    Type: Application
    Filed: October 22, 2013
    Publication date: April 24, 2014
    Inventors: Jinxi SHEN, Barthelemy Fondeur, Wenlin JIN, David J. CHAPMAN, Niki LIU
  • Publication number: 20140035432
    Abstract: A micro-electro-mechanical (MEMs) devices including a compound hot electrode, which increases the tilting range of the MEMs device. A substantially vertical hot electrode is mounted adjacent to the end or the sides of a pivoting ground electrode, formed of the underside of a pivoting mirror, and combine with a conventional horizontal hot electrode to make up the compound hot electrode.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 6, 2014
    Inventor: Wenlin Jin
  • Publication number: 20130176621
    Abstract: A diffractive MEMS device has an in-plane binary reflective diffraction pattern formed in an outer surface of a tiltable platform. The binary reflective diffraction pattern includes rectangular or trapezoidal ridges and valleys, or grooves, of a same depth. The binary reflective diffractive pattern has a high diffraction efficiency even though the surfaces of the “grooves” or “ridges” are not perpendicular to the incoming optical beam. The diffractive pattern is supported by a pair of torsional hinges and is tiltable by an electrostatic actuator. The electrostatic actuator can include at least one side electrode for linearization of dependence of tilt angle on the voltage applied to the actuator.
    Type: Application
    Filed: December 20, 2012
    Publication date: July 11, 2013
    Applicant: JDS Uniphase Corporation
    Inventors: John Michael Miller, Wenlin JIN
  • Patent number: 8342756
    Abstract: The invention relates to a hermetic feedthrough of an optical fiber into a package for an optical module, that includes a package ferrule hermetically attached to the package or integral therewith, a fiber ferrule hermetically sealed around the optical fiber, and a compression sleeve hermetically sealed around the package ferrule. The compression sleeve is hermetically sealed to the fiber ferrule or integral therewith, and wherein a coefficient of thermal expansion (CTE) of the compression sleeve is greater than a CTE of the package ferrule so that a joint between the compression sleeve and the package ferrule is under compressive stress.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: January 1, 2013
    Assignee: JDS Uniphase Corporation
    Inventors: Abdul Jaleel K. Moidu, Wenlin Jin
  • Publication number: 20110170833
    Abstract: The invention relates to a hermetic feedthrough of an optical fiber into a package for an optical module, that includes a package ferrule hermetically attached to the package or integral therewith, a fiber ferrule hermetically sealed around the optical fiber, and a compression sleeve hermetically sealed around the package ferrule. The compression sleeve is hermetically sealed to the fiber ferrule or integral therewith, and wherein a coefficient of thermal expansion (CTE) of the compression sleeve is greater than a CTE of the package ferrule so that a joint between the compression sleeve and the package ferrule is under compressive stress.
    Type: Application
    Filed: March 30, 2010
    Publication date: July 14, 2011
    Inventors: Abdul Jaleel K. MOIDU, Wenlin Jin
  • Patent number: 7952778
    Abstract: A multi-layer hidden hinge and actuator design for high fill factor biaxial MEMS mirror array for wavelength selective switches (WSS) based on a silicon-on-insulator (SOI) process with wafer bonding and coarsely aligned orthogonal vertical comb and/or parallel plate actuator. Each micro-mirror in the MEMS linear piano micro-mirror array comprises a micro-mirror layer, a hinge layer and an electrode/substrate layer. Preferably, the roll and tilt electrodes are substantially disposed along the roll axis to provide a high fill factor. The structure is formed by fabricating the layers separately in SOI structure and then bonding them together.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: May 31, 2011
    Assignee: JDS Uniphase Corporation
    Inventors: Abdul Jaleel K. Moidu, Wenlin Jin
  • Publication number: 20090180169
    Abstract: A multi-layer hidden hinge and actuator design for high fill factor biaxial MEMS mirror array for wavelength selective switches (WSS) based on a silicon-on-insulator (SOI) process with wafer bonding and coarsely aligned orthogonal vertical comb and/or parallel plate actuator. Each micro-mirror in the MEMS linear piano micro-mirror array comprises a micro-mirror layer, a hinge layer and an electrode/substrate layer. Preferably, the roll and tilt electrodes are substantially disposed along the roll axis to provide a high fill factor. The structure is formed by fabricating the layers separately in SOI structure and then bonding them together.
    Type: Application
    Filed: January 14, 2009
    Publication date: July 16, 2009
    Inventors: Abdul Jaleel K. Moidu, Wenlin Jin
  • Patent number: 7167613
    Abstract: A micro-electro-mechanical (MEMS) mirror device for use in an optical switch is disclosed. A “piano”-style MEMs device includes an elongated platform pivotally mounted proximate the middle thereof by a torsional hinge. The middle portion of the platform and the torsional hinge have a combined width less than the width of the rest of the platform, whereby several of these “piano” MEMs devices can be positioned adjacent each other pivotally mounted about the same axis with only a relatively small air gap therebetween. In a preferred embodiment of the present invention the spacing between electrodes is increased without effecting the fill factor of the mirrors by interlacing two sets of tilting platforms, whereby the reflecting portions of both sets of tilting platforms are adjacent one another, while the non-reflecting portions of adjacent platforms are remote from each other.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: January 23, 2007
    Assignee: JDS Uniphase Inc.
    Inventors: John M. Miller, Wenlin Jin, Barrie Keyworth, Pierre D. Wall
  • Patent number: 7010188
    Abstract: A micro-electro-mechanical (MEMs) mirror device for use in an optical switch is disclosed. A “piano”-style MEMs device includes an elongated platform pivotally mounted proximate the middle thereof by a torsional hinge. The middle portion of the platform and the torsional hinge have a combined width less than the width of the rest of the platform, whereby several of these “piano” MEMs devices can be positioned adjacent each other pivotally mounted about the same axis with only a relatively small air gap therebetween. In a preferred embodiment of the present invention specially designed for wavelength switching applications, a greater range of arcuate motion for a mirror mounted thereon is provided by enabling the platform to rotate about two perpendicular axes.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: March 7, 2006
    Assignee: JDS Uniphase Inc.
    Inventors: John Michael Miller, Yuan Ma, Barrie Keyworth, Wenlin Jin, David R. Hess
  • Publication number: 20060008201
    Abstract: A micro-electro-mechanical (MEMs) mirror device for use in an optical switch is disclosed. A “piano”-style MEMs device includes an elongated platform pivotally mounted proximate the middle thereof by a torsional hinge. The middle portion of the platform and the torsional hinge have a combined width less than the width of the rest of the platform, whereby several of these “piano” MEMs devices can be positioned adjacent each other pivotally mounted about the same axis with only a relatively small air gap therebetween. In a preferred embodiment of the present invention specially designed for wavelength switching applications, a greater range of arcuate motion for a mirror mounted thereon is provided by enabling the platform to rotate about two perpendicular axes.
    Type: Application
    Filed: September 8, 2005
    Publication date: January 12, 2006
    Inventors: John Miller, Yuan Ma, Barrie Keyworth, Wenlin Jin, David Hess