Invention Application
- Patent Title: LENS DRIVING APPARATUS
- Patent Title (中): 镜头驱动装置
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Application No.: US15079043Application Date: 2016-03-23
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Publication No.: US20160202446A1Publication Date: 2016-07-14
- Inventor: Kwok Sing Cheng
- Applicant: Kwok Sing Cheng
- Main IPC: G02B7/08
- IPC: G02B7/08 ; G02B13/00 ; G02B27/64

Abstract:
A lens driving apparatus includes: a fixed assembly including a base frame; a movable assembly including a lens holder configured to hold a lens unit; at least one set of magnets surrounding the movable assembly; three sets of coils configured to interact with the magnets and drive the movable assembly to move along a first, a second, and a third orthogonal axes; and a spring system attached between the movable assembly and the fixed assembly. The third axis is parallel to an optical axis of the lens unit. The first and second axes are respectively perpendicular to the third axis. The three sets of coils include a set of focusing coils and two sets of side coils. The at least one set of magnets include four magnetic members attached to inside walls of the outer casing, among which each two magnetic members are placed opposing to each other.
Public/Granted literature
- US11156799B2 Lens driving apparatus Public/Granted day:2021-10-26
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