96 results about "Electrostatic loudspeaker" patented technology

An acoustic transducer, specifically an electrostatic loudspeaker (ESL) providing curvature in two directions for improved dispersion of sound waves. The compound curvature also provides a virtual focus of the propagated sound waves for accurate reproduction of musical program material recorded with standard single-point microphones. The highly directional nature of high frequency sound waves requires that a flat or cylindrical electrostatic transducer must be physically tall to allow a listener to either recline or stand. The two-axis curved structure enables a compact form of ESL to be realized, including bookshelf type loudspeakers whereas all known commercial units are comparable in height to that of a human listener. The individual curved ESL panels can also be readily combined to create larger transducer assemblies including omni-directional units. A preferred stator panel hole-geometry is included for improved high voltage operation of coated perforated metal stator panels, and methods of forming the metal panel are described. The artistic nature of the two-dimensionally curved electrostatic transducer also lends itself to other non-traditional forms such as integration into lighting fixtures and other such architectural uses.