Patents by Inventor Rena Murase

Rena Murase 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).

  • Illumination light source and image display apparatus
    Patent number: 7936419
    Abstract: An illumination light source includes a coherent light source in which a plurality of light emitting points that emit coherent light beams are arranged in a one-dimensional array; and a light magnifying unit that magnifies the coherent light beams that are emitted from the light emitting points so that a diameter of light emitted from the coherent light source in a direction perpendicular to a direction of arrangement of the light emitting points is larger than a diameter in the direction of arrangement of the light emitting points. The illumination light source also includes an optical fiber; and a light-converging optical system in which a magnification is set such that light emitted from the light magnifying unit is coupled to the optical fiber, based on a maximum diameter of the light emitted from the light magnifying unit.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: May 3, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Rena Murase, Yoko Inoue, Tomohiro Sasagawa
  • Illumination light source and image display apparatus
    Patent number: 7672550
    Abstract: A coherent light source includes a plurality of light emitting points arranged in one-dimensional array. A beam shaping unit shapes a light beam so that a diameter of a light emitted from the coherent light source in a direction perpendicular to a direction of the light emitting point array is larger than a diameter in the direction of the light emitting point array, and an intensity distribution of the light emitted from each of the light emitting points is uniform. A magnification of a focusing optical system is set such that a light emitted from the beam shaping unit is coupled to an optical fiber based on a maximum diameter of the light emitted from the beam shaping unit.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: March 2, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Rena Murase, Yoko Inoue, Tomohiro Sasagawa
  • Illumination light source and image display apparatus
    Publication number: 20090052203
    Abstract: A coherent light source includes a plurality of light emitting points arranged in one-dimensional array. A beam shaping unit shapes a light beam so that a diameter of a light emitted from the coherent light source in a direction perpendicular to a direction of the light emitting point array is larger than a diameter in the direction of the light emitting point array, and an intensity distribution of the light emitted from each of the light emitting points is uniform. A magnification of a focusing optical system is set such that a light emitted from the beam shaping unit is coupled to an optical fiber based on a maximum diameter of the light emitted from the beam shaping unit.
    Type: Application
    Filed: August 14, 2008
    Publication date: February 26, 2009
    Inventors: Rena Murase, Yoko Inoue, Tomohiro Sasagawa
  • Illumination light source and image display apparatus
    Publication number: 20080259605
    Abstract: An illumination light source includes a coherent light source in which a plurality of light emitting points that emit coherent light beams are arranged in a one-dimensional array; and a light magnifying unit that magnifies the coherent light beams that are emitted from the light emitting points so that a diameter of light emitted from the coherent light source in a direction perpendicular to a direction of arrangement of the light emitting points is larger than a diameter in the direction of arrangement of the light emitting points. The illumination light source also includes an optical fiber; and a light-converging optical system in which a magnification is set such that light emitted from the light magnifying unit is coupled to the optical fiber, based on a maximum diameter of the light emitted from the light magnifying unit.
    Type: Application
    Filed: December 11, 2007
    Publication date: October 23, 2008
    Inventors: Rena Murase, Yoko Inoue, Tomohiro Sasagawa