Piezoelectric film loudspeaker
AssigneePioneer Corporation and Shizuoka Pioneer Corporation
InventorShigeru Watanabe
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Abstract
A piezoelectric film loudspeaker comprising a diaphragm having a flexible piezoelectric film and electrodes formed on the both surfaces of the flexible piezoelectric film and a frame for supporting a side of the diaphragm, wherein said respective electrodes disposed on the both surfaces are divided into a plurality of sections. Each area of the divided electrodes is formed differently from one another, and each curvature of the film in the divided section also is formed differently from one another. Thus, the piezoelectric film loudspeaker having a predetermined area can have a broad band.
Claims6
A piezoelectric film loudspeaker comprising:
- a diaphragm having a flexible piezoelectric film and electrodes formed on the both surfaces of the flexible piezoelectric film;
- and
- frames for supporting said diaphragm,
- wherein said respective electrodes disposed on the both surfaces are divided into a plurality of sections.
Dependencies are inferred from the claim text.