Patent ID: 8304976

Claim:
A lighting system, comprising: an electroluminescent device adapted to emit light in response to an applied electrical signal; and a first light modifying material adapted to modify a first portion of the emitted light to provide a first light component; wherein the lighting system combines the first light component with at least a second light component associated with a second portion of the emitted light to produce a system optical output; wherein the system optical output has a color temperature that changes based on the applied electrical signal; wherein the changes in color temperature are a result of substantial current crowding; wherein the emitted light is emitted from an output surface of the electroluminescent device, and wherein the electroluminescent device is characterized in that a spatial distribution of the emitted light over the output surface changes as a function of the applied electrical signal, the changes in the spatial distribution being at least in part as a result of the current crowding.