Apparatus of driving lens for focusing
US7519286B2 · kind B2 · utility
1Cited by
0References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2006 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Jul 26, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B3/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus of auto-focusing is provided, including an outer holder, a wire set, a magnet set and an inner-holder. The magnet set is fixed at the corners inside the outer-holder. The inner-holder is a hollow cylinder surrounded by a coil. The wire set is connected to the top and the bottom ends of the outer-holder. The other end of the wire set is connected to the outer circumference of the inner-holder. Therefore, the inner-holder is a hanging moveable component, which can move vertically when the electrical current flows through the coil to achieve the object of auto-focusing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.