Patent ID: 7952270

Claim:
An electroluminescent device comprising: at least one electroluminescent light source with an electroluminescent layer for emitting a primary radiation with an emission characteristic around a mean emission direction, and at least one light-converting element for converting at least part of the primary radiation into a secondary radiation, the at least one light-converting element having first, second and edge surfaces, a first spacing and a second larger spacing between the first and second surfaces, the first spacing is in a center of the at least one light-converting element and the second spacing is around its perimeter, wherein a shape of the second and edge surfaces of the light-converting element is adapted to the emission characteristic of the electroluminescent light source so as to generate a defined correlated color temperature as a function of a viewing angle, wherein the first surface faces toward the electroluminescent light source, the second surface faces away from the electroluminescent light source, and the edge surface is arranged between the first and second surface, and wherein the edge surface is arranged at an acute angle to a plane normal of the electroluminescent layer of the electroluminescent light source.