Patents by Inventor Paul Firth

Paul Firth 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: 10414194
    Abstract: Disclosed herein are devices that change their appearance and/or physical properties when under an external influence, and methods for their production and use. Such devices may be used as features of any type of items, documents, billboards, posters, display devices, advertisements and other items etc. and may be adapted to include decipherable content. Such devices also afford new techniques for a user to check quickly and easily whether the item is a legitimate or a counterfeit copy, either by hand-manipulation of the device, or with the assistance of an additional screening tool.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: September 17, 2019
    Assignee: Bank of Canada
    Inventors: Andrea Victoria Firth, Steven Paul McGarry, Alasdair Patrick Rankin
  • Patent number: 9509118
    Abstract: The invention relates to an optoelectronic assembly. The optoelectronic assembly comprises one or more optoelectronic components and a housing. The housing comprises an outer wall electrically connected to the one or more optoelectronic elements. The housing is configured to provide an electrical interface between the one or more optoelectronic components and an external electronic device. The electrical connection between the outer wall and the one or more optoelectronic components comprises an electrically conductive element. The electrically conductive element is supported on a dielectric material, such that the dielectric material provides structural support to the electrically conductive element between the one or more optoelectronic components and the outer wall.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 29, 2016
    Assignee: Oclaro Technology Limited
    Inventor: Paul Firth
  • Publication number: 20150263483
    Abstract: The invention relates to an optoelectronic assembly. The optoelectronic assembly comprises one or more optoelectronic components and a housing. The housing comprises an outer wall electrically connected to the one or more optoelectronic elements. The housing is configured to provide an electrical interface between the one or more optoelectronic components and an external electronic device. The electrical connection between the outer wall and the one or more optoelectronic components comprises an electrically conductive element. The electrically conductive element is supported on a dielectric material, such that the dielectric material provides structural support to the electrically conductive element between the one or more optoelectronic components and the outer wall.
    Type: Application
    Filed: September 27, 2013
    Publication date: September 17, 2015
    Inventor: Paul Firth
  • Patent number: 9020367
    Abstract: Optical devices are disclosed consisting of optical chips (planar lightwave circuits) which have optically symmetric or matching designs and properties and optical components which create asymmetry in the optical devices. The devices find application in detection in coherent and non-coherent optical communications systems.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: April 28, 2015
    Assignee: Oclaro Technology Limited
    Inventors: Stephen Jones, Robert Anthony Griffin, Paul Firth, Adrian Perrin Janssen, Colin Smith
  • Patent number: 8908726
    Abstract: An enclosure for a laser package the enclosure being configured to receive a laser component within the enclosure, and further configured to receive for a driver integrated circuit (IC) (34) on the exterior of the enclosure, wherein the enclosure comprises first external electrical contacts (52) electrically connected to respective first IC electrical contacts (60), and second IC electrical contacts (62) electrically connected to respective first internal electrical contacts (64), wherein the first and second IC electrical contacts (60, 62) are configured for electrical connection to the driver IC (34). Heat dissipation of the driver IC is improved for the IC being mounted outside of the enclosure.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: December 9, 2014
    Assignee: Oclaro Technology Limited
    Inventors: Paul Firth, Stephan Gardner
  • Patent number: 8687279
    Abstract: The invention relates to a lens comprising two or more seating surfaces and an optical axis offset from the center of the lens such that the optical axis is spaced by a first distance from a first seating surface and by a second distance from a second seating surface. The first and second distances are different so that the lens can be orientated to provide at least two different optical axis heights depending upon which seating surface is chosen to seat the lens.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: April 1, 2014
    Assignee: Oclaro Technology Limited
    Inventor: Paul Firth
  • Publication number: 20130114629
    Abstract: An enclosure for a laser package the enclosure being configured to receive a laser component within the enclosure, and further configured to receive for a driver integrated circuit (IC) (34) on the exterior of the enclosure, wherein the enclosure comprises first external electrical contacts (52) electrically connected to respective first IC electrical contacts (60), and second IC electrical contacts (62) electrically connected to respective first internal electrical contacts (64), wherein the first and second IC electrical contacts (60, 62) are configured for electrical connection to the driver IC (34). Heat dissipation of the driver IC is improved for the IC being mounted outside of the enclosure.
    Type: Application
    Filed: August 1, 2011
    Publication date: May 9, 2013
    Applicant: OCLARO TECHNOLOGY LIMITED
    Inventors: Paul Firth, Stephan Gardner
  • Publication number: 20130016437
    Abstract: The invention relates to a lens comprising two or more seating surfaces and an optical axis offset from the centre of the lens such that the optical axis is spaced by a first distance from a first seating surface and by a second distance from a second seating surface. The first and second distances are different so that the lens can be orientated to provide at least two different optical axis heights depending upon which seating surface is chosen to seat the lens.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 17, 2013
    Inventor: Paul Firth
  • Publication number: 20120282473
    Abstract: A method of treating a surface for an electronic or optoelectronic component to be bonded with adhesive, and a substrate comprising a ceramic surface for an electronic or optoelectronic component. A coating is applied to the surface that causes a reduction in the surface energy of the surface.
    Type: Application
    Filed: December 3, 2010
    Publication date: November 8, 2012
    Inventors: Owain Williams, Changqing Liu, Patrick Webb, Paul Firth
  • Publication number: 20120106984
    Abstract: Optical devices are disclosed consisting of optical chips (planar lightwave circuits) which have optically symmetric or matching designs and properties and optical components which create asymmetry in the optical devices. The devices find application in detection in coherent and non-coherent optical communications systems.
    Type: Application
    Filed: February 17, 2010
    Publication date: May 3, 2012
    Inventors: Stephen Jones, Robert Anthony Griffin, Paul Firth, Adrian Perrin Janssen, Colin Smith
  • Patent number: 6480650
    Abstract: It is known to couple a collimated beam of light into the end of an optical fibre with a graded index lens having an angled facet at the lens/fibre interface to reduce the amplitude of Fresnel retroreflected power. The expense incurred in providing angled facets is avoided by using a two-part compound lens. One part is a graded index lens part having an axial length shorter than a quarter period. To this is bonded a cylindrical uniform refractive index lens part whose index is matched with the effective refractive index of the fibre. This reduces the amplitude of the retroreflection power by causing the displacement of the Fresnel reflection from the lens focus.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: November 12, 2002
    Assignee: Nortel Networks Limited
    Inventors: Paul A Firth, Adrian Janssen
  • Publication number: 20010005440
    Abstract: It is known to couple a collimated beam of light into the end of an optical fiber with a graded index lens having an angled facet at the lens/fiber interface to reduce the amplitude of Fresnel retro-reflected power. The expense incurred in providing angled facets is avoided by using a two-part compound lens. One part is a graded index lens part having an axial length shorter than a quarter period. To this is bonded a cylindrical uniform refractive index lens part whose index is matched with the effective refractive index of the fiber. This reduces the amplitude of the retro-reflection power by causing the displacement of the Fresnel reflection from the lens focus.
    Type: Application
    Filed: December 28, 2000
    Publication date: June 28, 2001
    Inventors: Paul A. Firth, Adrian Janssen