公开(公告)号：EP3090427A2

公开(公告)日：2016-11-09

申请号：EP14830474.4

申请日：2014-12-30

申请人： Photosonix Medical, Inc.

发明人： SCHAFER, Mark, E.

IPC分类号： G10K9/12 ,  H02N2/04

CPC分类号： B06B1/0644 ,  G10K9/121 ,  H04R17/005

摘要： Flextensional transducers and methods of using flextensional transducers. The transducer includes a piezoelectric element and may include at least one endcap coupled with the piezoelectric element. The endcap may have an outer portion formed of a first material and an inner portion formed of a second material having a greater flexibility than the first material. The endcap may be coupled with an annular piezoelectric element near either its outer circumference or its inner circumference. The piezoelectric element may be a planar disk or have a curved bowl-shape. The transducer may be coupled with, and at least partially restrained by, a support structure. The transducer may also be configured to permit light to pass therethrough.