Photographing module
US8098985B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2009 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Jan 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B3/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention provides a photographing module that at least includes a lens unit, an electrically controlled focusing mechanism, an elastic unit, a supporting base and a photosensitive device. A movable member of the electrically controlled focusing mechanism is electrically driven to move the lens unit attached therewith along an optical axis so as to perform a focusing function. The elastic unit is disposed with the electrically controlled focusing mechanism and has a plurality of bridge regions. Each bridge region has a plurality of radial segments which are connected together, so that they can evenly absorb accumulated stress coming from a distortion, a plane shift along the optical axis and a certain amount of tilt of the lens unit while it is being rotated to be disposed in the photographing module or during its other movements. The elastic unit effectively utilizes available space to lengthen the bridge regions so its spring constant can be effectively reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.