Patents by Inventor Lenward Seals

Lenward Seals 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).

  • GRIN lens array light projector and method
    Patent number: 8355127
    Abstract: One aspect is a light source assembly in a drop detection arrangement. The light source assembly includes a light source and a gradient-index lens array to at least partially collimate light from the light source and to project a collimated light beam into the drop detection arrangement in a direction transverse to a drop direction of droplets in the drop detection arrangement. The light source assembly produces the light beam such that it has a beam width in a direction transverse to the drop direction that is larger than a beam height in the drop direction.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: January 15, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexander Govyadinov, Brett E. Dahlgren, Lenward Seals
  • GRIN LENS ARRAY LIGHT PROJECTOR AND METHOD
    Publication number: 20120013906
    Abstract: One aspect is a light source assembly in a drop detection arrangement. The light source assembly includes a light source and a gradient-index lens array to at least partially collimate light from the light source and to project a collimated light beam into the drop detection arrangement in a direction transverse to a drop direction of droplets in the drop detection arrangement. The light source assembly produces the light beam such that it has a beam width in a direction transverse to the drop direction that is larger than a beam height in the drop direction.
    Type: Application
    Filed: July 15, 2010
    Publication date: January 19, 2012
    Inventors: Alexander Govyadinov, Brett E. Dahlgren, Lenward Seals
  • Laser line generator
    Patent number: 7821718
    Abstract: A laser beam emission is collimated by optics. The collimated beam is shaped into an expanding planar laser beam by line generator optics. The expanding planar laser beam is collimated by other optics such that a beam having a generally rectangular cross-section is derived. The resulting beam can be used in ink drop detection and/or other applications.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: October 26, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexander Govyadinov, Lenward Seals
  • LASER LINE GENERATOR
    Publication number: 20100254020
    Abstract: A laser beam emission is collimated by optics. The collimated beam is shaped into an expanding planar laser beam by line generator optics. The expanding planar laser beam is collimated by other optics such that a beam having a generally rectangular cross-section is derived. The resulting beam can be used in ink drop detection and/or other applications.
    Type: Application
    Filed: April 6, 2009
    Publication date: October 7, 2010
    Inventors: Alexander Govyadinov, Lenward Seals
  • Porous gas sensors and method of preparation thereof
    Publication number: 20050151214
    Abstract: A sensor is disclosed. A representative sensor includes a silicon substrate having a porous silicon region. A portion of the porous silicon region has a front contact is disposed thereon. The contact resistance between the porous silicon region and the front contact is between about 10 ohms and 100 ohms.
    Type: Application
    Filed: January 24, 2005
    Publication date: July 14, 2005
    Inventors: James Gole, Lenward Seals, Peter Hesketh