Lens driving device and camera module
By providing a through portion between the lens holding component and the base component and disposing a vibration damping member, the installation difficulty problem caused by the magnet setting position or size is solved, and the stability and performance of the device are improved.
CN115453672BActive Publication Date: 2025-09-16ALPS ALPINE CO LTD
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Patent Information
- Application Number
- CN202210637081.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-06-07
- Filing Date
- 2022-06-07
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2042-06-07
AI Technical Summary
Technical Problem
In existing lens driving devices, the placement or size of the magnets makes it difficult to install the vibration damping component, which affects the stability and performance of the device.
Method used
A through portion is provided between the lens holding member and the base member, and a vibration damper is arranged between the through portion and the protruding portion to form an appropriate mounting structure.
Benefits of technology
A more appropriate installation of vibration damping parts is achieved, which improves the stability and performance of the lens drive device.
✦ Generated by Eureka AI based on patent content.
Abstract
The object of the present invention is to provide a lens driving device in which a vibration damping member is more appropriately mounted. In the lens driving device (101), there is provided: a lens holding member (2) having an inner peripheral portion (12) capable of holding a lens body; a frame (HS) including a base member (18) arranged below the lens holding member; a leaf spring (6) supporting the lens holding member so as to be movable in the direction of the optical axis; and a driving mechanism (DM) including at least a coil (3) held on the outer peripheral portion (12j) of the lens holding member and a magnet group (5) opposite to the coil, and moving the lens holding member in the direction of the optical axis. The lens holding member has a through portion (2H) penetrating between the inner peripheral portion and the outer peripheral portion in the direction of the optical axis. The base member has a protrusion (18P) inserted into the through portion. Furthermore, a vibration damping member (DP) is arranged between the wall portion constituting the through portion and the protrusion.
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