Patent ID: 7722211

Claim:
A light engine comprising: a chamber having an interior region and at least one aperture, the chamber being formed by a wall having an inner surface facing the interior of the chamber; a plurality of LEDs positioned inside the chamber and mounted to the inner surface, each LED having a light-emitting surface facing the interior of the chamber; an outcoupling material optically connected to a light emitting surface of an associated LED; a reflective material distributed over the inner surface except where the inner surface is occupied by any mounted LEDs; a transparent covering material formed over the outcoupling material, mounted LEDs, and reflective material, wherein the transparent covering material encloses the outcoupling material, mounted LEDs, and reflective material between the transparent covering material and the inner surface, wherein the outcoupling material extends from the light-emitting surface to the transparent covering material, and wherein the reflective material is distributed in the region between the transparent covering material and the inner surface except for regions occupied by the mounted LEDs and the outcoupling material.