Patents by Inventor Chao-hui Zhou

Chao-hui Zhou 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).

  • Automatic focusing mechanism
    Patent number: 8040426
    Abstract: An automatic focusing mechanism comprises a plurality of lenses and an image sensor disposed along an optical axis, an electromagnetic driving device for generating an electromagnetic force to drive the image sensor to move along the optical axis, and a position-limited device for limiting the movement of the image sensor along the optical axis. The image sensor is driven by the electromagnetic force and moved along the optical axis, and the distance between the lenses and the image sensor is properly adjusted, thereby realizing automatic focusing.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: October 18, 2011
    Assignee: China Mobile Internet Technologies Inc.
    Inventor: Chao-hui Zhou
  • Automatic focusing mechanism
    Publication number: 20080062301
    Abstract: An automatic focusing mechanism comprises a plurality of lenses and an image sensor disposed along an optical axis, an electromagnetic driving device for generating an electromagnetic force to drive the image sensor to move along the optical axis, and a position-limited device for limiting the movement of the image sensor along the optical axis. The image sensor is driven by the electromagnetic force and moved along the optical axis, and the distance between the lenses and the image sensor is properly adjusted, thereby realizing automatic focusing.
    Type: Application
    Filed: November 8, 2007
    Publication date: March 13, 2008
    Applicant: Beijing Huaqi Digital Technology Lab Co., LTD
    Inventor: Chao-hui ZHOU