Lens driving device for detecting position of a lens module
US9910290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2016 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Mar 4, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens driving device, includes a shell providing an accommodating space, a supporting frame accommodated in the accommodating space, a lens module received in the supporting frame and comprising at least one lens and a lens holder for holding the at least one lens, a circuit board accommodated in the accommodating space and having at least two adjacent surfaces, each of the at least two adjacent surfaces having a position sensor and an anti-shake coil arranged thereon and apart from each other, a magnet assembly having at least two first magnets and at least two second magnets fixed to the supporting frame, each of the at least two second magnets abutting against a corresponding first magnet and be adjacent to a corresponding position sensor. Comparing to the relevant technologies, the lens driving device has good performance and high reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.