Acoustic generator

摘要

Provided is an acoustic generator which has a high sound pressure at ultrahigh frequencies and which can suppress occurrence of large peak dips. An acoustic generator includes a film, a frame member disposed on an outer peripheral edge of the film, a piezoelectric element disposed on the film and inside the frame member, and a resin layer filled inside the frame member so as to cover the piezoelectric element.

主权项

1. An acoustic generator, comprising:
a film; a frame member disposed on an outer peripheral edge of the film; a plurality of piezoelectric elements disposed on the film and inside the frame member; and a resin layer disposed inside the frame member so as to cover the piezoelectrics elements, wherein a total thickness of a first piezoelectric element, a part of the film on which the first piezoelectric element is disposed, and a part of the resin layer on which the first piezoelectric element is disposed, is different from a total thickness of a second piezoelectric element, a part of the film on which the second piezoelectric element is disposed, and a part of the resin layer on which the second piezoelectric element is disposed.