Autofocus module
US8582222B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2011 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Apr 19, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/023
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an autofocus module including: a supporting base, an electrical focusing element and an conductive element, wherein the supporting base at least accommodates one lens element, the electrical focusing element is disposed at one end of the supporting base so that the electrical focusing element and the lens element are positioned along a common optical lens, and the conductive element is embedded in the supporting base and connected to the electrical focusing element and an external power source respectively. The electrical focusing element obtains power through the conductive element, and by controlling the power magnitude supplied to the electrical focusing element, the focal length thereof can be changed accordingly, thereby carrying out the autofocus operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.