Patents by Inventor Hua Wen Fan

Hua Wen Fan 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).

  • Patent number: 7220007
    Abstract: An outer suspension type lens shielding mask for a projection apparatus including a sheet body and holding element, in which a rectangular hole is opened in the sheet body, and the sheet body is combined with the holding element to be fixed on a projection apparatus. Another outer suspension type lens shielding mask includes a base plate, in which a rectangular hole is opened in the middle part thereof, and upper and lower adjustable plates are installed behind the base plate. An open rectangular notch is respectively disposed at the middle parts of the upper and the lower adjustable plates. An adjustment mechanism includes a plurality of connecting elements connected to the base plate and the upper and the lower adjustable plates for adjusting the relative positions thereof, to avoid bad shadows yielded outside of a picture due to light diffraction and improve the quality of visual amusement.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: May 22, 2007
    Assignee: Coretronic Corporation
    Inventors: Chih Chung Yang, Hsi Chih Sun, Hua Wen Fan
  • Patent number: 7204597
    Abstract: An outer suspension type lens shielding mask for a projection apparatus including a sheet body and holding element, in which a rectangular hole is opened in the sheet body, and the sheet body is combined with the holding element to be fixed on a projection apparatus. Another outer suspension type lens shielding mask includes a base plate, in which a rectangular hole is opened in the middle part thereof, and upper and lower adjustable plates are installed behind the base plate. An open rectangular notch is respectively disposed at the middle parts of the upper and the lower adjustable plates. An adjustment mechanism includes a plurality of connecting elements connected to the base plate and the upper and the lower adjustable plates for adjusting the relative positions thereof, to avoid bad shadows yielded outside of a picture due to light diffraction and improve the quality of visual amusement.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: April 17, 2007
    Assignee: Coretronic Corporation
    Inventors: Chih Chung Yang, His Chih Sun, Hua Wen Fan
  • Publication number: 20070024818
    Abstract: A projector having an optical engine module is disclosed. The projector has an optical engine module, a lamp module, and a fan and is disposed on the substrate. The lamp module is used for generating a light beam and reflecting the light beam to the optical engine module. The optical engine module comprises an invisible light filter, a color wheel, a light valve, and a projection lens. The fan is used for generating airflow to the lamp module.
    Type: Application
    Filed: July 27, 2006
    Publication date: February 1, 2007
    Inventors: Chih-Chung Yang, Hua-Wen Fan
  • Patent number: 7152980
    Abstract: An outer suspension type lens shielding mask for a projection apparatus includes a sheet body and a holding element, in which a rectangular hole is opened in the sheet body. The sheet body is combined with the holding element together for being fixed on a projection apparatus. Another outer suspension type lens shielding mask has a base plate, in which a rectangular hole is opened in the middle part thereof, upper and lower adjustable plates, installed behind the base plate and an open rectangular notch is respectively disposed at the middle parts of the upper and the lower adjustable plates, and an adjustment mechanism, including a plurality of connecting elements connected to the base plate and the upper and the lower adjustable plates for adjusting the relative positions of the upper and the lower adjustable plates on the base plate.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: December 26, 2006
    Assignee: Coretronic Corporation
    Inventors: Chih Chung Yang, Hsi Chih Sun, Hua Wen Fan