Patent ID: 7710048

Claim:
An illuminator comprising: a primary power supply comprising a primary wire; a secondary power supply comprising two energy-recycling units each comprising a magnetically conductive annular core made of iron powder and a secondary wire wound around the magnetically conductive annular core, wherein the primary wire is wound around the energy-recycling units; a first illumination unit connected to the primary wire; a second illumination unit connected to the secondary wires; a first pulse modulator connected to the primary wire and the first illumination unit; a second pulse modulator connected to the primary wire and the second illumination unit; and an oscillator connected to the primary wire and the first pulse modulator, wherein the first pulse modulator is a DD311 IC comprising: a first pin connected to the primary wire through a first reference resistor; a second pin connected to the first illumination unit; a third pin grounded; a fourth pin grounded; and a fifth pin connected to the second pin and the oscillator.