Patents by Inventor Ching Shun Wang

Ching Shun 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).

  • Optical encoder wheel with split lens ring
    Patent number: 5982551
    Abstract: Disclosed is a split-lens for grating wheel comprising a disk body and a ring-lens around the peripheral of the disk body wherein said ring-lens comprises alternately-arranged opaque parts and transparent parts, and transparent parts forms the convex lens portion for said ring-lens. The opaque parts are arranged in radial direction on peripheral of the disk body and with equi-angle. By this configuration, the inference problem can be solved and the resolution can be enhanced.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: November 9, 1999
    Inventors: Ching-Shun Wang, Cheng-Liang Hsieh