An illumination system using filament lamps including a filament lamp, a reflector having a first and second focal points, the filament lamp disposed proximate to the first focal point of the reflector to emit rays of electromagnetic radiation that reflect from the reflector and converge substantially...http://www.google.com/patents/US6955452?utm_source=gb-gplus-sharePatent US6955452 - Illumination system using filament lamps
