Auto-focus camera module with MEMS distance measurement
US9055207B2 · kind B2 · utility
1Cited by
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23Claims
0Family size
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Key dates
| Filing date | Mar 7, 2013 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Jun 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0084
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A MEMS actuator for an auto-focus camera module is coupled with a capacitance measurement component configured to determine MEMS actuator capacitance values to be used to determine motion and displacement of the camera module, the optical module and/or one or more movable lenses thereof, and to adapt a position and alignment of the one or more movable lenses to account for a specific focus distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.