Patents by Inventor Lorenzo Gonzo

Lorenzo Gonzo 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).

  • System and method of light spot position and color detection
    Patent number: 7022966
    Abstract: A position and color detection sensor (for detecting a position of a light spot in a light distribution that can include stray light components, e.g. from other lasers, ambient lighting etc.) includes two discrete response position sensitive detectors (DRPSDs). The first DRPSD is used to calculate a raw estimate of the spot position and the second DRPSD is used to calculate the actual spot position based on information from the first DRPSD. Color is supported by further dividing each pixel of the first DRPSD into elementary photocells, each one covered with an appropriate optical filter. The use of two DRPSDs differing in pixel geometries makes them suitable for integration on the same chip using the same process. This reduces production and alignment costs. Further, analogue microelectronic processes can be used for color filter deposition and simple optics can be used for beam splitting and shaping.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: April 4, 2006
    Assignees: National Research Council of Canada, Istituto Trentino Di Cultura
    Inventors: Lorenzo Gonzo, Andrea Simoni, Massimo Gottardi, J. Angelo Beraldin
  • System and method of light spot position and color detection
    Publication number: 20030025068
    Abstract: A position and color detection sensor (for detecting a position of a light spot in a light distribution that can include stray light components, e.g. from other lasers, ambient lighting etc.) includes two discrete response position sensitive detectors (DRPSDs). The first DRPSD is used to calculate a raw estimate of the spot position and the second DRPSD is used to calculate the actual spot position based on information from the first DRPSD. Color is supported by further dividing each pixel of the first DRPSD into elementary photocells, each one covered with an appropriate optical filter. The use of two DRPSDs differing in pixel geometries makes them suitable for integration on the same chip using the same process. This reduces production and alignment costs. Further, analogue microelectronic processes can be used for color filter deposition and simple optics can be used for beam splitting and shaping.
    Type: Application
    Filed: July 31, 2002
    Publication date: February 6, 2003
    Applicant: National Research Council of Canada
    Inventors: Lorenzo Gonzo, Andrea Simoni, Massimo Gottardi, J. Angelo Beraldin