Patents by Inventor Pei-Lun Song

Pei-Lun Song 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).

  • Projection device and discharge lamp thereof
    Patent number: 7675236
    Abstract: A discharge lamp disposed in a projecting device is provided. The discharge lamp includes a housing, a discharge vessel and an ultraviolet (UV) source. The discharge vessel having a first axis is filled with a gas and disposed in the housing. The ultraviolet source disposed at a predetermined distance from the first axis for exciting the gas so as to generate a beam.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: March 9, 2010
    Inventor: Pei-Lun Song
  • Projection device and discharge lamp thereof
    Publication number: 20060202625
    Abstract: A discharge lamp disposed in a projecting device is provided. The discharge lamp includes a housing, a discharge vessel and an ultraviolet (UV) source. The discharge vessel having a first axis is filled with a gas and disposed in the housing. The ultraviolet source disposed at a predetermined distance from the first axis for exciting the gas so as to generate a beam.
    Type: Application
    Filed: March 10, 2006
    Publication date: September 14, 2006
    Inventor: Pei-Lun Song
  • Projector apparatus
    Patent number: 6830343
    Abstract: The present invention is a color wheel and a projector apparatus using the same. The projector apparatus includes a lamp, a color wheel, and a driving device. The lamp generates a beam directing into the color wheel. The driving device drives the color wheel to rotate, to radially move, or to axially move. The color wheel includes a plurality of filter devices. At least one filter device includes a first filter and a white filter connected to the first filter. A boundary arc is defined at the connection of the first filter and the white filter. The ratio of the area of the first filter to the area of the white filter for each filter device is predetermined, and the ratios among the filter devices are selectively the same.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: December 14, 2004
    Assignee: BenQ Corporation
    Inventor: Pei-Lun Song
  • Projector apparatus
    Publication number: 20040057022
    Abstract: The present invention is a color wheel and a projector apparatus using the same. The projector apparatus includes a lamp, a color wheel, and a driving device. The lamp generates a beam directing into the color wheel. The driving device drives the color wheel to rotate, to radially move, or to axially move. The color wheel includes a plurality of filter devices. At least one filter device includes a first filter and a white filter connected to the first filter. A boundary arc is defined at the connection of the first filter and the white filter.
    Type: Application
    Filed: September 15, 2003
    Publication date: March 25, 2004
    Inventor: Pei-Lun Song