Patents Assigned to Cornerstone Optical Co., Ltd.
  • Patent number: 8733929
    Abstract: A color contrast enhancing sunglass lens includes a lens body and a multi-layer coating disposed on the lens body. The multi-layer coating includes a set of alternating layers formed of materials having different refractive indices and confines the transmission of visible light to a predetermined spectral profile having at least three high transmission bands that include blue, green and red bands and that have a maximum of spectral transmittance no less than 60%, three low transmission bands that include purple, cyan and yellow bands and that have a minimum of spectral transmittance no greater than 40%, and no spectral transmittance being less than 15% between 475 and 650 nm. The color contrast enhancing sunglass lens as disclosed meets the ANSI specification Z80.3-2009 section 4.6.3.3.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 27, 2014
    Assignee: Cornerstone Optical Co., Ltd.
    Inventors: Michael Chiou, Shih-Lung Huang
  • Publication number: 20130271725
    Abstract: A color contrast enhancing sunglass lens includes a lens body and a multi-layer coating disposed on the lens body. The multi-layer coating includes a set of alternating layers formed of materials having different refractive indices and confines the transmission of visible light to a predetermined spectral profile having at least three high transmission bands that include blue, green and red bands and that have a maximum of spectral transmittance no less than 60%, three low transmission bands that include purple, cyan and yellow bands and that have a minimum of spectral transmittance no greater than 40%, and no spectral transmittance being less than 15% between 475 and 650 nm.
    Type: Application
    Filed: September 14, 2012
    Publication date: October 17, 2013
    Applicant: CORNERSTONE OPTICAL CO., LTD.
    Inventors: Michael Chiou, Shih-Lung Huang
  • Patent number: 8083349
    Abstract: An edge coated glass polarized lens includes a lens body and an edge coating made from a UV curable material having a composition including: an aliphatic polyesterpolyol based urethane methacrylate formed by reaction of reactants including an aliphatic polyesterpolyol, a hydroxyalkyl methacrylate, and a diisocyanate, and having a number average molecular weight ranging from 800 to 4500; a reactive diluent including a methacrylate monomer; an adhesion enhancer including a silane material selected from methacrylate-functional silane, amino methacrylate-functional silane, vinyl-functional silane, and combinations thereof; and a photo initiator.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: December 27, 2011
    Assignee: Cornerstone Optical Co., Ltd.
    Inventors: Christopher Ho, Michael Chiou, Chun-Chieh Chen