Patent ID: 8112921
Filing Date: 2012-02-14
Classification: F21K,G09F

Abstract:
1. A sign, comprising: a sign structure having a first surface, a display on said first surface, said display comprising at least one display color hue, each said display color hue having x,y coordinates on a 1931 CIE Chromaticity Diagram; and a plurality of sources of visible light, said sources of visible light oriented such that when illuminated, they illuminate at least a portion of said display, said sources of visible light independently selected from among solid state light emitters and luminescent materials, each said source of visible light, when illuminated, emitting light of an illumination color hue, each illumination color hue having x,y coordinates on said 1931 CIE Chromaticity Diagram, wherein line segments drawn on said 1931 CTE Chromaticity Diagram connecting respective x,y coordinates of at least some of said illumination color hues define a shape which encompasses x,y coordinates of each of said at least one display color hue.