A projector for projecting electromagnetic control signals.

摘要

A projector for projecting optical signals for controlling a missile comprises means for producing two alternately orthogonally scanned rectangular beams (p,y) from a single incident beam derived from a single source of laser radiation (2) and a modulator for pulse modulating said source at a plurality of pulse rates over first and second ranges of frequencies corresponding to respective ones of said two beams. The beam producing means is formed by two prism elements (14, 16) relatively movable with respect to each other by a transducer (12) to cause rotation of the beams. A Pechan prism (10) with a reversion axis oriented at 45 DEG with respect to the length of the rectangular beam is preferred for use as the beam rotator.