Patent ID: 6420719
Filing Date: 2002-07-16
Classification: B64D,F41J,H04K

Abstract:
Apparatus for countermeasuring a heat seeking missile approaching a heat radiating target in which the heat seeking missile has a guidance system comprising:an infrared source at said target, and means for spatially modulating the radiation from said infrared source by generating a beam of infrared radiation and by periodically sweeping said beam past points in space to generate a number of pulses of infrared energy at each point in space for causing the guidance system in said heat seeking missile to guide said missile away from said target, said spatial modulating means including reflective means adapted for movement about said infrared source, said reflective means including reflective elements each conforming in contour to a portion of a parabola having said infrared source at its focus, said reflective elements being spaced from said generating means and positioned such that all of the radiation from said generating means is reflected once and is collimated into beams which radiate outwardly from said source at different angles.