Patents by Inventor Meng-Che Tsai

Meng-Che Tsai 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: 20080010651
    Abstract: An optical device. A drive moving assembly includes a lens module and a drive coil. The drive coil surrounds the lens module and provides a central axis parallel to an optical axis of the lens module. A drive stator includes a housing, a magnetic member, and a yoke. The lens module is movably disposed in the housing. The magnetic member surrounds the drive coil and includes an opening. The yoke interacts with the magnetic member, generating a magnetic field. The magnetic member, yoke, and drive coil interact to move the drive moving assembly parallel to the optical axis. A brake coil is disposed in the opening. A braking resilient member is connected between the drive stator and the brake coil and disposed in the opening. The brake coil interacts with the magnetic member, yoke, and braking resilient member and detachably abuts the drive moving assembly.
    Type: Application
    Filed: October 4, 2006
    Publication date: January 10, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yung-Hsing Wang, Jin-Yu Lee, Meng-Che Tsai, Chien-Sheng Liu, Shun-Sheng Ke, Ying-Chi Cho
  • Publication number: 20070039015
    Abstract: An optical device. A lens module is movably disposed in a lens housing. A drive mechanism is connected to the lens module, driving the lens module along an optical axis of the lens module. A brake mechanism is disposed between the lens housing and the lens module and moves perpendicular to the optical axis, fixing and releasing the lens module. When the brake mechanism releases the lens module, the lens module moves along the optical axis.
    Type: Application
    Filed: November 8, 2005
    Publication date: February 15, 2007
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jin-Yu Lee, Yung-Hsing Wang, Chien-Sheng Liu, Meng-Che Tsai, Kun-Wei Lin, Ying-Chi Chuo