Patents by Inventor Stephen Bagnald

Stephen Bagnald 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: 20210278576
    Abstract: A diffractive optical element may include sub-wavelength period stack-and-gap structured layers providing transmissive phase delay at a wavelength. The sub-wavelength period stack-and-gap structured layers may include a set of thin anti-reflection layers that are index matched to an environment or a substrate over a range of fill factors of the sub-wavelength period.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Inventors: John Michael MILLER, Stephen BAGNALD
  • Patent number: 11016227
    Abstract: A diffractive optical element may include sub-wavelength period stack-and-gap structured layers providing transmissive phase delay at a wavelength. The sub-wavelength period stack-and-gap structured layers may include a set of thin anti-reflection layers that are index matched to an environment or a substrate over a range of fill factors of the sub-wavelength period.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: May 25, 2021
    Assignee: Lumentum Operations LLC
    Inventors: John Michael Miller, Stephen Bagnald
  • 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
  • Publication number: 20200400861
    Abstract: An optical element may include a substrate. The optical element may include a first anti-reflectance structure for a particular wavelength range formed on the substrate. The optical element may include at least one layer disposed on a portion of the first anti-reflectance structure. The optical element may include a second anti-reflectance structure for the particular wavelength range formed on the at least one layer. A depth between a first surface of the first anti-reflectance structure and a second surface of the second anti-reflectance structure, a first index of refraction of the first anti-reflectance structure, a second index of refraction of the second anti-reflectance structure, and a third index of refraction of the at least one layer may be selected to form a diffractive optical element associated with a particular phase delay for the particular wavelength.
    Type: Application
    Filed: June 30, 2020
    Publication date: December 24, 2020
    Inventors: John Michael MILLER, Stephen BAGNALD
  • Patent number: 10712475
    Abstract: An optical element may include a substrate. The optical element may include a first anti-reflectance structure for a particular wavelength range formed on the substrate. The optical element may include at least one layer disposed on a portion of the first anti-reflectance structure. The optical element may include a second anti-reflectance structure for the particular wavelength range formed on the at least one layer. A depth between a first surface of the first anti-reflectance structure and a second surface of the second anti-reflectance structure, a first index of refraction of the first anti-reflectance structure, a second index of refraction of the second anti-reflectance structure, and a third index of refraction of the at least one layer may be selected to form a diffractive optical element associated with a particular phase delay for the particular wavelength.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: July 14, 2020
    Assignee: Lumentum Operations LLC
    Inventors: John Michael Miller, Stephen Bagnald
  • Publication number: 20190086682
    Abstract: A diffractive optical element may include sub-wavelength period stack-and-gap structured layers providing transmissive phase delay at a wavelength. The sub-wavelength period stack-and-gap structured layers may include a set of thin anti-reflection layers that are index matched to an environment or a substrate over a range of fill factors of the sub-wavelength period.
    Type: Application
    Filed: July 19, 2018
    Publication date: March 21, 2019
    Inventors: John Michael MILLER, Stephen BAGNALD
  • Publication number: 20190056531
    Abstract: An optical element may include a substrate. The optical element may include a first anti-reflectance structure for a particular wavelength range formed on the substrate. The optical element may include at least one layer disposed on a portion of the first anti-reflectance structure. The optical element may include a second anti-reflectance structure for the particular wavelength range formed on the at least one layer. A depth between a first surface of the first anti-reflectance structure and a second surface of the second anti-reflectance structure, a first index of refraction of the first anti-reflectance structure, a second index of refraction of the second anti-reflectance structure, and a third index of refraction of the at least one layer may be selected to form a diffractive optical element associated with a particular phase delay for the particular wavelength.
    Type: Application
    Filed: December 11, 2017
    Publication date: February 21, 2019
    Inventors: John Michael Miller, Stephen Bagnald