公开(公告)号：US20220217470A1

公开(公告)日：2022-07-07

申请号：US17701624

申请日：2022-03-22

Applicant: AGC Inc.

Inventor： Jun AKIYAMA ,  Kento SAKURAI

IPC: H04R7/08 ,  H04R1/02 ,  H04R1/28 ,  H04R7/26 ,  H04R7/18

Abstract: A vibration device includes: a glass diaphragm; an exciter which is fixed to the glass diaphragm and vibrates the glass diaphragm; an enclosing member which defines an internal space by enclosing a portion, including a fixing position of the exciter, of the glass diaphragm, one end portion of the glass diaphragm being exposed to outside the internal space through an opening of the internal space; and a shielding member for acoustic shielding between the opening and the glass diaphragm, the shielding member dividing the glass diaphragm into an excitation region located inside the internal space and a vibration region located outside the internal space.