Patents by Inventor Chin-Hen Fang

Chin-Hen Fang 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 collimating, laser ray target position indicating and laser ray absorbing device of a laser system
    Patent number: 5048953
    Abstract: An optical collimating, laser ray target position indicating and laser ray absorbing device, mounted between a laser generating source and a laser ray guiding device.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: September 17, 1991
    Assignee: Industrial Technology Research Institute
    Inventors: Sher-Cherng Kuo, Chin-Hen Fang, Yu-Hsiang Lai
  • Lens for scanning devices
    Patent number: 4828375
    Abstract: It is a lens comprising three elements for a scanning device; the lens is particularly for providing a linear scanning. A beam enters the lens from its front focus by rotating a constant angular velocity, will become a beam in parallel with the axis of the lens and moving at a contant speed when passing through the lens; the distance H between the beam and the axis of the lens, the contained angle .theta. between the incident beam and the axis of the lens have the relation of H=KF.theta., in which F is the focal length of the lens, and K is a constant.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: May 9, 1989
    Assignee: Industrial Technology Research Institute
    Inventors: Yueh-Joy Dong, Chin-Hen Fang