Vibration device and imaging unit including vibration device
US11369996B2 · kind B2 · utility
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20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 30, 2020 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Jan 20, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0061
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A vibration device includes a protective cover, a first cylindrical body, a plate spring, a second cylindrical body, a piezoelectric element, and a vibrating plate. The vibration device further includes a non-equilibrium structure that removes a mass of a portion of or adds a mass to at least one of the protective cover, the first cylindrical body, the plate spring, the second cylindrical body, and the vibrating plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.