Patents by Inventor Cheng Y. Tang

Cheng Y. Tang 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).

  • System and method for selection of photochromic optical articles
    Patent number: 11525757
    Abstract: A method of determining outdoor characteristics of a photochromic optical article includes: determining environmental conditions for an area; positioning the optical article to face a first direction; determining a first incident irradiance on the optical article; determining a first surface temperature and first spectrum of the optical article; rotating the optical article to face a second direction; determining a second surface temperature and Full Characterization of Lens second spectrum of the optical article; determining a second incident irradiance on the optical article; and generating a prediction model of spectral transmission of the optical article. Further using environmental and climate conditions and to select a photochromic article most appropriate for an area.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: December 13, 2022
    Assignee: Transitions Optical, Ltd.
    Inventors: Gilles Baillet, Christopher J. Baldy, Bérangère Granger, Robert E. Summers, Cheng Y. Tang
  • System and Method for Selection of Photochromic Optical Articles
    Publication number: 20190271612
    Abstract: A method of determining outdoor characteristics of a photochromic optical article includes: determining environmental conditions for an area; positioning the optical article to face a first direction; determining a first incident irradiance on the optical article; determining a first surface temperature and first spectrum of the optical article; rotating the optical article to face a second direction; determining a second surface temperature and Full Characterization of Lens second spectrum of the optical article; determining a second incident irradiance on the optical article; and generating a prediction model of spectral transmission of the optical article. Further using environmental and climate conditions and to select a photochromic article most appropriate for an area.
    Type: Application
    Filed: December 30, 2016
    Publication date: September 5, 2019
    Inventors: Gilles Baillet, Christopher J. Baldy, Bérangère Granger, Robert E. Summers, Cheng Y. Tang