LOUD−SPEAKER USING PIEZO−ELECTRIC ELEMENT

摘要

A loud−speaker including a thin−plate−shaped current/mechanical vibration conversion element, a pair of conductive lines for supplying drive current to the conversion element, a resonator fixed to a peripheral portion of the conversion element, and a fixed shaft whose one end is fixed, for example, to a vicinity of the center of the conversion element and whose other end is fixed to another structure.