Patents by Inventor Jeffrey J. Pederson

Jeffrey J. Pederson 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 structures with off-state appearance area
    Patent number: 10718890
    Abstract: A lightguide includes features for extracting light that would otherwise be confined and propagate within the lightguide primarily by total internal reflection. A first portion of light propagating within the lightguide and extracted exits the lightguide through a first area of the lightguide having an optical reflectance of at least 30% and an optical transmittance of at least 5% for normally incident light at a wavelength of the extracted light. A second portion of light propagating within the lightguide and extracted exits the lightguide through a different second area of the lightguide having an optical transmittance of at least 80% for normally incident light at the wavelength of the extracted light.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: July 21, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Brian W. Ostlie, Tao Liu, Del R. Lawson, Brent A. Hedding, James A. Phipps, Jeffrey J. Pederson
  • OPTICAL STRUCTURES WITH OFF-STATE APPEARANCE AREA
    Publication number: 20190072703
    Abstract: A lightguide includes features for extracting light that would otherwise be confined and propagate within the lightguide primarily by total internal reflection. A first portion of light propagating within the lightguide and extracted exits the lightguide through a first area of the lightguide having an optical reflectance of at least 30% and an optical transmittance of at least 5% for normally incident light at a wavelength of the extracted light. A second portion of light propagating within the lightguide and extracted exits the lightguide through a different second area of the lightguide having an optical transmittance of at least 80% for normally incident light at the wavelength of the extracted light.
    Type: Application
    Filed: February 13, 2017
    Publication date: March 7, 2019
    Inventors: Brian W. Ostlie, Tao Liu, Del R. Lawson, Brent A. Hedding, James A. Phipps, Jeffrey J. Pederson