Patent ID: 9576511
Date: 2017-02-21
CPC Classifications: F21K,G09F

Claim:
1. A sign, comprising: a sign structure, a display and at least two sources of visible light, the sign structure having a first surface, the first surface defining substantially a first plane, the display on the first surface, the display comprising at least one display color hue, the sources of visible light oriented such that when illuminated, the sources of visible light illuminate at least a portion of the display by emitting light, at least some of which exits the sources of visible light, travels to the display, and is reflected by the display, so that the display is illuminated, the sources of visible light from among solid state light emitters and luminescent materials, at least two of the sources of visible light, when illuminated, emit light having respective hues that are spaced from each other by at least 0.36 units on the 1931 CIE Chromaticity Diagram.