Patents by Inventor John Henry Forster

John Henry Forster 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).

  • Edge-lit illumination system
    Patent number: 6568821
    Abstract: An edge-lit illumination system comprising a light transmitting sheet (10) which has a surface treatment, capable of reflecting or scattering light, on at least one of its opposing surfaces (11, 12), a light source (13) positioned in proximity to, and adjacent to, an edge of this sheet, and a reflective surface (14) positioned adjacent to an edge of the sheet, at an obtuse angle (18) to the plane of the sheet and extending away from one surface of the sheet. The reflective surface is preferably disposed adjacent to the edge of the light transmitting sheet having the light source adjacent to it. The obtuse angle preferably ranges from 100 to 145 degrees. This invention gives an increase in the area of illumination across the light transmitting sheet.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: May 27, 2003
    Assignee: Lucite International UK Limited
    Inventors: John Mark Page, John Henry Forster