Patents by Inventor Yuan-Lin Wang

Yuan-Lin Wang 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).

  • Lens module for a thin scanning device
    Patent number: 6906872
    Abstract: A lens module for a thin scanning device is to be disposed on an optical path from an original to an image sensor, and includes first to fifth lenses and a stop. The first lens has a focal length and a shape factor with identical signs, and is disposed to form an object distance with the original. The second lens has a focal length with a sign opposite to that of the focal length of the first lens, and a shape factor with a sign opposite to that of the shape factor of the first lens. The stop is disposed between the second and third lenses. The third lens has a positive focal length and a positive shape factor. The fourth lens has a positive focal length and a negative shape factor. The fifth lens has a negative focal length and a positive shape factor.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: June 14, 2005
    Assignee: Microtek International, Inc.
    Inventors: Yuan-Lin Wang, Roger Lien
  • Lens module for a thin scanning device
    Publication number: 20040145819
    Abstract: A lens module for a thin scanning device is to be disposed on an optical path from an original to an image sensor, and includes first to fifth lenses and a stop. The first lens has a focal length and a shape factor with identical signs, and is disposed to form an object distance with the original. The second lens has a focal length with a sign opposite to that of the focal length of the first lens, and a shape factor with a sign opposite to that of the shape factor of the first lens. The stop is disposed between the second and third lenses. The third lens has a positive focal length and a positive shape factor. The fourth lens has a positive focal length and a negative shape factor. The fifth lens has a negative focal length and a positive shape factor.
    Type: Application
    Filed: January 7, 2004
    Publication date: July 29, 2004
    Applicant: MICROTEK INTERNATIONAL, INC.
    Inventors: Yuan-Lin Wang, Roger Lien