Patent ID: 6686847
Filing Date: 2004-02-03
Classification: G09F,Y10S

Abstract:
A backlighted indicator comprising:a dark-colored reflective cavity comprising a cavity surrounded by a dark-colored reflective surface; a single light emitting diode mounted in a first end of the reflective cavity and configured to generate an LED light output through the cavity; a layer of diffusing material proximate to a second end of the reflective cavity opposite the light emitting diode, the layer including a clear portion; and a dark tinted window proximate to the layer of diffusing material; wherein the reflective cavity reflects LED light output that is back-scattered by specular reflection from the layer of diffusing material, provides uniform lighted background for a graphics image in the layer of diffusing material, and provides a uniform dark background to make the window appear as opaque when the LED light output is not generated.