Patents by Inventor THI-LIEN VU

THI-LIEN VU 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).

  • Progressive multifocal contact lens and producing method thereof
    Patent number: 10274750
    Abstract: A progressive multifocal contact lens and producing method thereof are provided. The progressive multifocal contact lens includes a first optical region of a front optical surface and a second optical region of a back optical surface. The first optical region includes a center zone, an outer zone and an intermediate zone connected between the center zone and outer zone where the center zone and outer zone are selected from a distance vision power and a near vision power and the intermediate zone is configured to adjust the optical power of the distance vision power and the near vision power so that the optical power or add power of the first optical region on the front optical surface forms a normal cumulative distribution function.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: April 30, 2019
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Thi-Lien Vu, Chao-Chang Chen, Yu-Ting Qiu
  • PROGRESSIVE MULTIFOCAL CONTACT LENS AND PRODUCING METHOD THEREOF
    Publication number: 20180024380
    Abstract: A progressive multifocal contact lens and producing method thereof are provided. The progressive multifocal contact lens includes a first optical region of a front optical surface and a second optical region of a back optical surface. The first optical region includes a center zone, an outer zone and an intermediate zone connected between the center zone and outer zone where the center zone and outer zone are selected from a distance vision power and a near vision power and the intermediate zone is configured to adjust the optical power of the distance vision power and the near vision power so that the optical power or add power of the first optical region on the front optical surface forms a normal cumulative distribution function.
    Type: Application
    Filed: February 15, 2017
    Publication date: January 25, 2018
    Inventors: THI-LIEN VU, CHAO-CHANG CHEN, YU-TING QIU