Driving device, lens barrel, and optical apparatus including the lens barrel
US8792051B2 · kind B2 · utility
2Cited by
10References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2011 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Oct 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0053
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a driving device, a distance from a guide member to a vibrator is less than that from the guide member to a permanent magnet in a plane perpendicular to a guiding direction of a guide member. An attraction force between the permanent magnet and a magnetic body acts as a force to rotate (i.e., a rotating force) a holding member about an axis of the guide member, and the vibrator is pressed against a contact member by the rotating force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.