VIEWING SCREEN FOR MOTION PICTURE PROJECTORS

摘要

A slide-out viewing screen for a motion picture projector. A slidable frame is carried by the projector and a negative lens, mirror and rear projection viewing screen are mounted on the frame. The negative lens and the mirror are pivotably supported by the frame and are movable from a stored position to an operative position when the frame is moved from a stored position to a viewing position. Through an interaction between the mirror and the negative lens and the projector housing, the mirror and negative lens will be positioned in their stored position when the frame is in its stored position.