Anti-vibration device for an optical imaging system having improved drive force
US5845157A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1996 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Oct 23, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0053
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An anti-vibration device for an optical imaging system which cancels or mitigates forces arising when the anti-vibration device is driven in a first or second direction. The anti-vibration device is held in a lens frame which is driven in a first or second direction by a drive force generating device. The drive generating device includes first and second motors, the force of which is transmitted to the lens frame via respective transmission gear trains and drive shafts which move a movable member and thus move the lens frame. The position of action of the force on the lens frame due to the respective shafts is set to a position which divides the lens frame in a specified ratio, and the positions of action of the respective shafts are close to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.