Patents by Inventor Erik Zetterlund

Erik Zetterlund 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).

  • Optical transducer with farfield modifier
    Patent number: 6943967
    Abstract: An optical transducer includes a light-emitting device with a light output that has an angular spatial intensity distribution exhibiting multiple peaks. A lens is closely coupled to the light-emitting device to reduce the angular spread of the spatial intensity distribution, preferably to a single peak on the optical axis. The lens is preferably a ball lens coupled to the light-emitting device by a refractive glue.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: September 13, 2005
    Assignee: Zarlink Semiconductor AB
    Inventor: Erik Zetterlund
  • Photonic device with monitor
    Patent number: 6816521
    Abstract: A photonic device has a semiconductor substrate with an active photosensitive surface generating a photocurrent dependent on the intensity of light falling on it. A light emitting element, typically a VCSEL, having a lower electrode is located on a contact element in the middle of the active surface. The light emitting element covers the contact element. A doped conductive path within the substrate establishes electrical connection between the contact element and a peripheral bonding pad. The doped path preferably constitutes the entirety of the upper layer forming the photosensitive surface.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: November 9, 2004
    Assignee: Zarlink Semiconductor AB
    Inventors: Erik Zetterlund, Christer Eriksson, John Frode
  • Photonic device with monitor
    Publication number: 20040028093
    Abstract: A photonic device has a semiconductor substrate with an active photosensitive surface generating a photocurrent dependent on the intensity of light falling on it. A light emitting element, typically a VCSEL, having a lower electrode is located on a contact element in the middle of the active surface. The light emitting element covers the contact element. A doped conductive path within the substrate establishes electrical connection between the contact element and a peripheral bonding pad. The doped path preferably constitutes the entirety of the upper layer forming the photosensitive surface.
    Type: Application
    Filed: May 8, 2003
    Publication date: February 12, 2004
    Applicant: Zarlink Semiconductor AB
    Inventors: Erik Zetterlund, Christer Eriksson, John Frode
  • Optical transducer with farfield modifier
    Publication number: 20040008917
    Abstract: An optical transducer includes a light-emitting device with a light output that has an angular spatial intensity distribution exhibiting multiple peaks. A lens is closely coupled to the light-emitting device to reduce the angular spread of the spatial intensity distribution, preferably to a single peak on the optical axis. The lens is preferably a ball lens coupled to the light-emitting device by a refractive glue.
    Type: Application
    Filed: April 17, 2003
    Publication date: January 15, 2004
    Applicant: Zarlink Semiconductor AB
    Inventor: Erik Zetterlund