Patents by Inventor Bing-Zhi Wang

Bing-Zhi 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).

  • Apparatus having a light source for a transparent sheet of a scanner
    Patent number: 7477424
    Abstract: The present invention relates to an apparatus having a light source for a transparent sheet of a scanner that includes a lamp, a reflective plate, a spreading plate and a protective plate. The light rays emitted by the lamp are used to scan a transparent sheet, the reflective plate in the arc shape reflects the light rays onto the scanning platform and there is an aperture on the predetermined position of the reflective plate to decrease the illumination for distributing uniformly the light rays. Besides, the spreading plate has a plurality of perforations to advance the light rays distributed uniformly. The protective plate made of the material pervious to light protects the components of this invention. As those described above, there are many advantages for the present invention, such as the structure is simple, the cost is low, and is much practical and can highly improve the performance of a scanner for a transparent sheet.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: January 13, 2009
    Assignee: Transpacific Optics LLC
    Inventors: Hsing-Tung Wang, Bing-Zhi Wang
  • Apparatus having a light source for a transparent sheet of a scanner
    Publication number: 20030112481
    Abstract: The present invention relates to an apparatus having a light source for a transparent sheet of a scanner that includes a lamp, a reflective plate, a spreading plate and a protective plate. The light rays emitted by the lamp are used to scan a transparent sheet, the reflective plate in the arc shape reflects the light rays onto the scanning platform and there is an aperture on the predetermined position of the reflective plate to decrease the illumination for distributing uniformly the light rays. Besides, the spreading plate has a plurality of perforations to advance the light rays distributed uniformly. The protective plate made of the material pervious to light protects the components of this invention. As those described above, there are many advantages for the present invention, such as the structure is simple, the cost is low, and is much practical and can highly improve the performance of a scanner for a transparent sheet.
    Type: Application
    Filed: December 17, 2001
    Publication date: June 19, 2003
    Applicant: Mustek Systems , Inc.
    Inventors: Hsing-Tung Wang, Bing-Zhi Wang