Positioning device, shake correcting device and electronics
US8073317B2 · kind B2 · utility
5Cited by
8References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2007 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Mar 2, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0069
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A positioning device comprising a moving portion provided with a pair of magnets arranged respectively along with a first axis and a second axis, a fixed portion provided to face to the moving portion, and a voice coil motor (VCM) for relatively driving the moving portion and the fixed portion by an electromagnetic action between a coil and a drive magnet provided to each of the moving portion and the fixed portion: wherein one of the magnets is arranged so as to reduce a rotation moment generated by an electromagnetic connection between the other magnet and the voice coil motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.