Patent ID: 9306148
Filing Date: 2016-04-05
CPC Classification: G01S,H01L,H04R

Claim Text:
1. An oscillator device comprising: a frame-shaped supporting frame; a flat elastic member that is supported by an outer circumferential portion in the supporting frame; and at least two piezoelectric elements of which at least one is disposed on each of both surfaces of the elastic member and which move expansively and contractively through the application of an electric field, wherein center positions of principal surfaces of the piezoelectric elements that are positioned on both surfaces of the elastic member are different from each other, wherein the center of the principal surface of the first piezoelectric element that is positioned on one surface of the elastic member overlaps with a lateral surface of the second piezoelectric element that is positioned on the other surface of the elastic member when seen in a plan view, and wherein the center of the second piezoelectric element overlaps with a lateral surface of the first piezoelectric element when seen in a plan view.