Gun-mounted search light

Abstract

An internal IR filter assembly for an illuminator has a lamp disposed within a reflector with a face plate. A spring-biased IR filter is shaped as a hollow sleeve telescopically disposed over the lamp. A fixed cylindrical pedestal has one end coupled to the face plate. A sliding cylindrical mount is coupled to the IR filter and telescopically disposed over the fixed pedestal. A gear drive is engaged to a driven gear or hub. A motor is coupled to the gear drive to selectively and reversibly rotate the gear drive. The driven gear is coupled to the sliding cylindrical mount of the IR filter to selectively and reversibly translate the IR filter with respect to the lamp. At least one rod is coupled to the driven gear to prevent the rotation of the driven gear. The rod is slidable within the illuminator but rotationally fixed relative to the illuminator.

Dependencies are inferred from the claim text.