Patent ID: 8890720
Filing Date: 2014-11-18
Classification: G06F

Abstract:
1. A light guide comprising: an at least partially translucent light transmitting plate having an upper surface, a lower surface and side surfaces; at least twenty-six light transmitting cavities projecting into said lower surface of said plate, said twenty-six cavities each having an arcuate dome-shaped sidewall so that said cavities are hemispherical or hemi-ellipsoid in shape, the interface between said plate and said twenty-six cavities defining twenty-six plate-cavity interfaces; a reflector covering at least a portion of said plate's lower surface and said twenty-six cavities; and a light source for communicating light through said plate; said interfaces being at least partially translucent for allowing light transmitted through said plate to refract through said interfaces into said cavities, and said cavities being at least partially translucent to permit light refracted into said cavities to reflect off said reflector to again refract through said interfaces to travel upwardly through said plate to transmit light from said plate's upper surface.