Electroactive sound transducer foil having a structured surface
US9832572B2 · kind B2 · utility
1Cited by
13References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 2014 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Dec 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R17/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electroactive sound transducer foil includes a composite foil made up of at least one carrier foil, at least one first and one second electrode, and at least one piezoelectric layer including an electroactive polymer, the surface of the sound transducer foil including a structuring having different slopes, and the slope of the sound transducer foil surface changing the sign at least twice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.