Patents by Inventor Paulyn Ng Hwei Kien

Paulyn Ng Hwei Kien 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).

  • Process for determining a pair of progressive ophthalmic lenses
    Patent number: 9411170
    Abstract: The visual perception of a lens wearer is not only along the gaze direction, but also has a non-zero transverse extension, which is called perceptual span. Perceptual span is skewed to extend further in the reading direction, i.e., the line portion to be read next relative to the line portion that was just read. A technique is provided that determines a pair of progressive ophthalmic lenses that take such perceptual span into account.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: August 9, 2016
    Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventors: Björn Drobe, Paulyn Ng Hwei Kien, Aude Contet
  • Process For Determining A Pair Of Progressive Ophthalmic Lenses
    Publication number: 20150109575
    Abstract: The visual perception of a lens wearer is not only along the gaze direction, but also has a non-zero transverse extension, which is called perceptual span. Perceptual span is skewed to extend further in the reading direction, i.e., the line portion to be read next relative to the line portion that was just read. A technique is provided that determines a pair of progressive ophthalmic lenses that take such perceptual span into account.
    Type: Application
    Filed: June 28, 2013
    Publication date: April 23, 2015
    Inventors: Björn Drobe, Paulyn Ng Hwei Kien, Aude Contet