Patents by Inventor William Herschel Couch

William Herschel Couch 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).

  • Lighting device utilizing a double fresnel lens
    Patent number: 9464778
    Abstract: According to one aspect, an optical lens includes a substrate having a first side and a second side opposite the first side. The optical lens includes a first pattern of Fresnel features having a first focal length disposed on the first side and a second pattern of Fresnel features having a second focal length disposed on the second side. The first pattern of Fresnel features is disposed perpendicular to the second pattern of Fresnel features, and the first focal length is different from the second focal length.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: October 11, 2016
    Assignee: Cree, Inc.
    Inventors: Zongjie Yuan, Kurt S. Wilcox, Benjamin P. Beck, Lisa Marie Barglind, Steven Patkus, William Herschel Couch
  • Lighting Device Utilizing a Double Fresnel Lens
    Publication number: 20150204491
    Abstract: According to one aspect, an optical lens includes a substrate having a first side and a second side opposite the first side. The optical lens includes a first pattern of Fresnel features having a first focal length disposed on the first side and a second pattern of Fresnel features having a second focal length disposed on the second side. The first pattern of Fresnel features is disposed perpendicular to the second pattern of Fresnel features, and the first focal length is different from the second focal length.
    Type: Application
    Filed: October 29, 2014
    Publication date: July 23, 2015
    Inventors: Zongjie Yuan, Kurt S. Wilcox, Benjamin P. Beck, Lisa Marie Barglind, Steven Patkus, William Herschel Couch