Patents by Inventor Lingbao Kong

Lingbao Kong 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).

  • Methods and apparatus of aligning surfaces
    Patent number: 7619749
    Abstract: Ultra-precision freeform surfaces are important to the development of complex and micro-optical-electro-mechanical devices used in many photonics and telecommunication products such as F-theta lenses for laser printers. These surfaces are complex and large scale surface topologies with shapes that generally possesses no rotational symmetry. Due to the geometrical complexities of these ultra-precision freeform surfaces, it is difficult to characterize the form accuracy and surface quality of freeform optical surfaces.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: November 17, 2009
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chi-Fai Cheung, Huifen Li, Wing-Bun Lee, Suet To, Lingbao Kong
  • Methods and apparatus of aligning surfaces
    Publication number: 20070195084
    Abstract: Ultra-precision freeform surfaces are important to the development of complex and micro-optical-electro-mechanical devices used in many photonics and telecommunication products such as F-theta lenses for laser printers. These surfaces are complex and large scale surface topologies with shapes that generally possesses no rotational symmetry. Due to the geometrical complexities of these ultra-precision freeform surfaces, it is difficult to characterize the form accuracy and surface quality of freeform optical surfaces.
    Type: Application
    Filed: August 29, 2006
    Publication date: August 23, 2007
    Inventors: Chi-Fai Cheung, Huifen Li, Wing-Bun Lee, Suet To, Lingbao Kong