Lens holder driving apparatus
US9575285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2014 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Apr 30, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/646
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens holder driving apparatus is disclosed. The lens holder driving apparatus includes a housing, an auto-focusing lens holder driving portion and a fixed portion. The auto-focusing lens holder driving portion includes an octagonal lens holder with a focusing coil, a positioning magnet mounted on the lens holder, a magnet holder with a magnet group including a bracket having a sidewall, a pillar projecting at the four corners of the sidewall of the bracket, and a first notch disposed at the pillar face to the focusing coil. The fixed portion includes a base having a sidewall, a FPC mounted on the sidewall of the base and a Hall element electrically connecting with the FPC inserted into the first notch for detecting the position of the positioning magnet so as to adjust the position of the lens holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.