Patent ID: 8408772

Claim:
An illumination device comprising: a plurality of light emitting diodes arranged in a coplanar array, wherein the coplanar array comprises a light emitting diode at the center and light emitting diodes positioned radially symmetrically around the light emitting diode at the center, and wherein the central axes of the plurality of light emitting diodes are arranged to be parallel to each other; a one-piece lens array collimating light from the plurality of light emitting diodes, the lens array comprising a plurality of coplanar lens tiles, wherein the coplanar lens tiles comprise a lens tile at the center and lens tiles positioned radially symmetrically around the lens tile at the center, and wherein the central axis of each of the lens tiles is aligned with the central axis of a corresponding light emitting diode; and a focusing lens converging the collimated light from the lens array into a single image in a focal plane, wherein the central axis of the focusing lens is aligned with the central axis of the lens array.