Patents by Inventor Lung-Yu Cheng

Lung-Yu Cheng 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).

  • Reflectance measuring apparatus
    Patent number: 7646487
    Abstract: A reflectance measuring apparatus is provided in the present invention. In addition to measuring the intensity of light directly reflected from a sample, the apparatus is further capable of collecting large-angle reflected light scattered from the sample through a reflecting cover disposed over the sample and measuring the intensity thereof. In one embodiment, the reflecting cover has a parabolic surface for modulating the large-angle reflected light to become parallel light projecting onto a photo-detector. In another embodiment, the reflecting cover has an elliptic surface for modulating the large-angle scattered light to focus on the photo-detector.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: January 12, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Kun-Wei Lin, Yi-Hsuan Chiang, Lung-Yu Cheng, Yu-Hsiu Chang
  • Reflectance measuring apparatus
    Publication number: 20090128823
    Abstract: A reflectance measuring apparatus is provided in the present invention. In addition to measuring the intensity of light directly reflected from a sample, the apparatus is further capable of collecting large-angle reflected light scattered from the sample through a reflecting cover disposed over the sample and measuring the intensity thereof. In one embodiment, the reflecting cover has a parabolic surface for modulating the large-angle reflected light to become parallel light projecting onto a photo-detector. In another embodiment, the reflecting cover has an elliptic surface for modulating the large-angle scattered light to focus on the photo-detector.
    Type: Application
    Filed: April 11, 2008
    Publication date: May 21, 2009
    Inventors: Kun-Wei Lin, Yi-Hsuan Chiang, Lung-Yu Cheng, Yu-Hsiu Chang