Auto focus device of mobile communication apparatus
US8260130B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2010 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Oct 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0069
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An auto focus device of a mobile communication apparatus is disclosed. The auto focus device comprises a voice coil motor, a first driving circuit and a second driving circuit. The voice coil motor comprises a floating movable device and a lens in the floating movable device. The first driving circuit drives the voice coil motor so that the floating movable device moves inside the voice coil motor to zoom in/out and focus the lens on image sensors when the camera function is activated. The second driving circuit drives the voice coil motor to fix the floating movable device inside the voice coil motor and cover the image sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.