Patents by Inventor Wei Shang Cheng

Wei Shang 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).

  • Uniform radiation intensity generation box using a symmetrical lighting source
    Patent number: 6672737
    Abstract: A uniform radiation intensity generation box using a symmetrical lighting source is constructed to include a housing, the housing having a top opening for the mounting of a camera for taking photos of a real object and a door at one side, a plurality of lamp tubes vertically symmetrically provided inside the housing, and a plurality of diffusion plates mounted inside the housing and covered over the lamp tubes, each diffusion plate having a plurality of diffusing grains uniformly arranged in one face thereof and adapted for diffusing light from the lamp tubes in all directions inside the housing.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: January 6, 2004
    Assignee: Waytech Development, Inc.
    Inventors: Peng Cheng Lai, Douglas W. Wang, Wei Shang Cheng, Yu Chang Chang, Kueng Yan Wu