Lens driving device
US12429747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2021 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Mar 10, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0061
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present embodiment relates to a lens driving device comprising: a lens barrel; a lens disposed in the lens barrel; and a driving unit disposed in the lens barrel, wherein: the driving unit includes a piezoelectric element expanding or contracting in a direction perpendicular to an optical axis direction of the lens when a voltage is applied thereto, a first member disposed on the piezoelectric element, and a second member coupled to the first member and disposed in the lens barrel; the lens barrel moves in the optical axis direction of the lens when the voltage is applied to the piezoelectric element; and a first length in the lengthwise direction of the first member is shorter than a second length in the lengthwise direction of the second member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.