Patent ID: 8761593

Claim:
A common focus energy emitter for emitting an exit beam, the emitter having an energy emitter axis and comprising: (a) a common focus energy source for emitting an exit beam through an exit beam aperture, said common focus energy source and said exit beam aperture defining the energy emitter axis; and (b) at least two spaced apart energy source units each having: i) an energy source for emitting energy, ii) a three dimensional concave primary reflector for reflecting energy emitted by its associated energy source into an energy beam focused at said common focus energy source, said primary reflector bounding a minor three dimensional concave section of an imaginary primary reflector ellipsoid of revolution having a primary reflector axis of revolution non-coaxial with the energy emitter axis, said imaginary primary reflector ellipsoid of revolution having a semi-major axis and a semi-minor axis in an imaginary plane including the energy emitter axis, said primary reflector axis of revolution including a pair of spaced apart focal points, said pair of spaced apart focal points including a first focal point located at said common focus energy source and a second focal point at which its associated energy source is disposed thereat, said primary reflector axis of revolution subtending a primary reflector tilt angle relative to said imaginary plane including the energy emitter axis, and iii) a secondary optical element for shaping said energy beam from its associated primary reflector traversing said common focus energy source into an exit beam component of the exit beam.