Patent ID: 8855338

Claim:
A sound transducer comprising: a. a driver, comprising a plurality of core portions, manufactured of a core material which, when excited by an electromagnetic signal, experiences a volume displacement as an expansion of an amount X and contraction of an amount Y, corresponding to the signal, the core portions arranged in a set, with a gap between adjacent core portions; and b. a plurality of curved lamina that are: i. disposed around the plurality of core portions, each laminum having a rest curvature, each coupled to at least one core portion such that expansion of an amount X and contraction of an amount Y of the at least one core portion causes a change in the degree of curvature of the coupled lamina, thereby generating a lamina volume displacement, which corresponds to the core volume displacement and thus the electromagnetic signal, and which lamina volume displacement corresponding to a core expansion is greater than the amount X and which lamina volume displacement corresponding to a core contraction is greater than the amount Y; and ii. composed of materials and coupled to the core portions such that dynamics of a combination of the driver with lamina coupled thereto are the same as the dynamics of the driver without the lamina.