Lens drive device, camera module, and camera-mounted device
US11009719B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2016 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Jul 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0069
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This lens drive device is provided with an AF drive part and image stabilization drive part using the driving force of a VCM. a pair of power supply suspension wires and a pair of signal suspension wires couple an image stabilization fixed part with an AF fixed part. The AF fixed part includes an AF power supply line, a signal line, a coil power supply line, and an AF control part. The AF control part includes: a Hall element detecting the position of the AF movable part in the optical axis direction; a coil control part controlling the energizing current for an AF coil on the basis of a control signal supplied through the signal suspension wires and the detection results of the Hall element; and an autofocus circuit board whereon the Hall element and the coil control part are mounted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.