Abstract: A light or radiation emitting source that utilizes radiation emitting solid state or semiconductor devices is disclosed. The devices are mounted on a surface that is in thermal communication with a plurality of elongate thermally conductive members. The elongate thermally conductive members are utilized to cool the devices.

Abstract: A light or radiation emitting source that utilizes radiation emitting solid state or semiconductor device is disclosed. The device are mounted on a surface that is in thermal communication with a plurality of elongate thermally conductive elements. The elongate thermally conductive elements are utilized to cool the devices.

Abstract: A light source that utilizes light emitting diodes that emit white light is disclosed. The diodes are mounted on an elongate member having at least thermally conductive portions coupled together. At least one light emitting diode is mounted on an outer surface of the elongate member. The elongate member is thermally conductive and is utilized to cool the light emitting diode by transferring heat to fluid contained by said elongate member.

Abstract: A light source that utilizes light emitting diodes that emit white light is disclosed. The diodes are mounted on an elongate member having at least two surfaces upon which the light emitting diodes are mounted. The elongate member is thermally conductive and is utilized to cool the light emitting diodes. In the illustrative embodiment, the elongate member is a tubular member through which a heat transfer medium flows. A cooling or fluid movement device coupled with the elongate thermally conductive member enhances cooling of the light emitting diodes.

Abstract: A light source that utilizes light emitting diodes that emit white light is disclosed. The diodes are mounted on an elongate member having at least two surfaces upon which the light emitting diodes are mounted. The elongate member is thermally conductive and is utilized to cool the light emitting diodes. In the illustrative embodiment, the elongate member is a tubular member through which a heat transfer medium flows.