Abstract: The present invention constitutes a display system (10) for alpha-numeric and graphic images. The system provides a signboard on which varying images of comparably large dimensions can be made to appear. The system comprises an input matrix (12), a display matrix (14), and a large number of optical conductors (16) such as optical fibers which interconnect corresponding parts of the matrixes. Optical images focused on the front face (15) of the input matrix appear in expanded form on the display face (24) of the output matrix. The system may be constructed from a large number of small units (60) comprising an input bundle (62), an output block (22), and a group of optical fibers (66). These units may be easily manufactured by a process involving a limited number of steps.

Abstract: A light-beam projecting apparatus usable in connection with sound-producing equipment for creating, on a remote surface, infinitely varying light-impingement patterns which are directly related to the instantaneous sound. The device includes a light beam source, a reflector, a sound-signal-actuated movable driver and a plurality of interconnectors connecting the driver and the reflector. Each interconnector, having a different resonant frequency, reacts to a sound signal by producing vibrations which are different from the vibrations of the other interconnectors, causing the reflector to oscillate in a manner sympathetic to the instantaneous sound signal.