AN APPARATUS AND METHOD OF USING LED LIGHT SOURCES TO GENERATE A UNITIZED BEAM

摘要

An apparatus is comprised of a plurality of light emitting diodes (LED) of similar or differing wavelengths; means for efficiently collecting energy radiating from two or more LEDs into an approximate unitized beam; and means for distributing this energy into a common aperture. A means provides thermal management of the apparatus and electronically controls the individual LEDs. The LEDs have different color outputs and means for selectively controlling the color of light from the apparatus. In one embodiment there are at least two LEDs, at least two reflector cavities, a common combining cavity or zone, a means for mounting each of the LEDs within the reflector cavities and a housing, and the LEDs are mounted on a heat conductive material that provides the thermal management for the LEDs. The LEDs are further selectively driven by an input signal to modulate the intensity of selected ones of the LEDs according the nature of the frequency bands in the driving signal, e.g. mixed color outputs are obtained from the device according to the control of a musical signal.