Patent ID: 6966684

Claim:
A lighting apparatus comprising: a wave guide having a substantially planar light emitting face and discrete microstructures arranged on pre-selected areas of a curved surface within the wave guide, said microstructures interacting with light in the wave guide to scatter at least a portion of the light out of the wave guide in a pattern, the pattern being determined by a prespecified arrangement of the microstructures and comprises of a series of localized light events each light event being associated with a respective arrangement of microstructures; a plurality of light emitting diodes disposed surroundingly at the wave guide periphery being coupled to the wave guide and injecting light into the wave guide, the plurality of light emitting diodes including: a first sub-set of light emitting diodes emitting light having a first color, and a second sub-set of light emitting diodes emitting light having a second color that mixes with the first color in the wave guide to produce a third color; and an encapsulant surrounding the plurality of light emitting diodes and abutting the wave guide, the encapsulant matching a refractive index of the wave guide.