Patents Assigned to Prolume, Inc.
  • Apparatus and method of indirectly illuminating a sign
    Patent number: 6026602
    Abstract: An internally illuminated sign having indirect illumination provided by light emitting diodes (LED). A plurality of LED's are mounted on a printed circuit board (PC board) and mounted within the sign. The PC board is offset to a side of the sign housing with the somewhat directional LED light source directed toward a reflector. The reflector is angled to convert the generally narrow directional light source of an LED into a substantially even, diffused and non-uniform light distribution pattern.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: February 22, 2000
    Assignee: Prolume, Inc.
    Inventors: Daniel J. Grondal, Robert M. Johnstone
  • Indirectly illuminated sign
    Patent number: 5542201
    Abstract: An internally illuminated sign having indirect illumination provided by light emitting diodes (LED). A plurality of LED's are mounted on a printed circuit board (PC board) and mounted within the sign. The PC board is offset to a side of the sign housing with the somewhat directional LED light source directed toward a reflector. The reflector is angled to convert the generally narrow directional light source of an LED into a substantially even, diffused and non-uniform light distribution pattern.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 6, 1996
    Assignee: Prolume, Inc.
    Inventors: Daniel J. Grondal, Robert M. Johnstone