Patents by Inventor David Adams Ender

David Adams Ender 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).

  • Lightguides having light extraction structures providing regional control of light output
    Patent number: 8545037
    Abstract: Lightguides, devices incorporating lightguides, and processes for making lightguides are described. A lightguide includes light extractors arranged in a pattern on a surface of the lightguide. The pattern of light extractors is arranged to enhance uniformity of light output across a surface of the lightguide and to provide enhanced defect hiding. The efficiency of the light extractors is controlled by a shape factor. The areal density of the light extractors across the surface of the lightguide may be substantially constant or may decrease along the direction of propagation of light from the light source.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: October 1, 2013
    Assignee: 3M Innovative Properties Company
    Inventor: David Adams Ender