Actuator driving apparatus and camera module including the same
US9804477B2 · kind B2 · utility
11Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2016 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Aug 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0069
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An actuator driving apparatus includes an inductor disposed on a housing to face a magnetic body attached to a lens carrier, a detector configured to apply a reference signal to the inductor and detect an inductor current flowing through the inductor, a calculator configured to determine a position of the lens carrier based on the inductor current, and a driver configured to drive an actuator based on the position of the lens carrier and a position control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.