Patent ID: 6634759
Filing Date: 2003-10-21
Classification: G02B

Abstract:
An optical device comprising:a single, non-cascaded source of electromagnetic radiation; a waveguide to be illuminated with at least a portion of the electromagnetic radiation emitted by said source; a first reflector comprising less than a complete concave surface of revolution having an optical axis and a first and a second focal point on said optical axis, said source being located proximate to said first focal point of said first reflector to produce rays of radiation that reflect from said first reflector and substantially converge at said second focal point; and a second reflector comprising less than a complete concave surface of revolution having an optical axis and a first and a second focal point on said optical axis of said second reflector, said waveguide being located proximate to said first focal point of said second reflector to receive rays of radiation that pass through said second focal point of said second reflector and are reflected by said second reflector to substantially converge at said first focal point of said second reflector, said second reflector being positioned and oriented with respect to said first reflector such that said second focal point of said first reflector and said second focal point of said second reflector are positioned substantially proximate and said optical axis of said first reflector and said optical axis of said second reflector are substantially collinear, wherein said single source of electromagnetic radiation is the only source of radiation in said device.