Patents by Inventor Yudong Zhang

Yudong Zhang 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).

  • Publication number: 20100011637
    Abstract: The invention provides a displaying device such as a souvenir product and method thereof. The device comprises a visual effecter and a display, wherein the visual effecter comprises at least one encapsulated electronic-optical element; the display can be a 2-dimensional or 3-dimensional display or any combination thereof; the display locates outside the visual effecter; and the display is subject to the visual effect of the visual effecter. The invention exhibits some merits such as easy manufacturability, lower failure rate, improved cost-effectiveness, production efficiency, easy handling and speedy supply, and better product stability and reliability.
    Type: Application
    Filed: July 15, 2008
    Publication date: January 21, 2010
    Inventor: Yudong Zhang
  • Publication number: 20080062390
    Abstract: A customizing equipment for individualized contact lenses comprises an uniform illumination system, a gray image generation system, a projection optical system, a stage system and an alignment system, among which the uniform illumination system generates uniform parallel illuminative light, which generates gray images through the gray image generator controlled by a computer after going through the gray image generation system according to detection results of aberration of human eyes, and images on the image plane of given radius of curvature with photoresist on the samples' surface, which is fixed on the stage system and adjusted to the correct position through the alignment system, after the gray images are zoomed and the curvature of the image field is corrected through the projection optical system, so that the photoresist on the samples' surface will be exposed according to the gray levels of the gray images, after which the exposed samples are developed and etched to obtain the device with continuous e
    Type: Application
    Filed: September 7, 2007
    Publication date: March 13, 2008
    Inventors: Yudong Zhang, Jian Wang, Lixin Zhao, Song Hu, Xiaochun Dong, Xuejun Rao, Hongtao Gao, Yun Dai