Patents Assigned to Exhibit-Group/Giltspur, Inc.
  • Light intensity equalizing element for lighted display panel
    Patent number: 5669700
    Abstract: An intensity equalizing element for placement between a number of individual fluorescent tubes in a light panel and the panel image display surface. The element includes a like number of curved surfaces in axial alignment with the individual tubes to reduce variation in observed intensity due to tube spacing. Each curved surface is provided with a non-uniform opaque dot pattern thereon to reduce variation in the intensity of light at the panel display surface and enhance uniformity of light intensity throughout an overlying image display.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: September 23, 1997
    Assignee: Exhibit-Group/Giltspur, Inc.
    Inventor: Christopher M. Wendel