Title:
LENS DRIVING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/088343
Kind Code:
A1
Abstract:
A lens driving apparatus, where each steel magnet (10) is unipole magnetized, a drive coil (8) is sleeved on an outer side of a lens barrel (4) and is spaced from the steel magnets (10), the steel magnets (10) drive the drive coil (8) to move in a direction of an optical axis of the lens barrel (4), and by means of an upper elastic piece (5) and a lower elastic piece (6) providing a restoring force, the drive coil (8) impels the lens barrel (4) to move in positive and negative directions along the direction of the optical axis, implementing an autofocus (AF) function; anti-shake coils (9) are fixed along a peripheral side of an outer casing (3) perpendicular to the direction of the optical axis, a first anti-shake coil (91) drives a first drive steel magnet (101) to move along a first direction perpendicular to the direction of the optical axis, and by means of an anti-shake suspension wire (7) providing a restoring force, an anti-shake function in a horizontal X direction is implemented; a second anti-shake coil (92) drives a second steel magnet (102) to move along a second direction perpendicular to the direction of the optical axis, and by means of the anti-shake suspension wire (7) providing the restoring force, an anti-shake function in a horizontal Y direction is implemented. The lens driving apparatus has a small thickness, is simple to assemble, and has low production costs.
Inventors:
NI TIANHENG (CN)
YAN FENG (CN)
LI GANG (CN)
WEI SUOHE (CN)
YAN FENG (CN)
LI GANG (CN)
WEI SUOHE (CN)
Application Number:
PCT/CN2020/131913
Publication Date:
May 05, 2022
Filing Date:
November 26, 2020
Export Citation:
Assignee:
AAC OPTICS SHENZHEN CO LTD (CN)
International Classes:
G02B7/09; G02B27/64; H02K41/035
Foreign References:
| CN108387994A | 2018-08-10 | |||
| CN108153081A | 2018-06-12 | |||
| CN111787735A | 2020-10-16 | |||
| CN204425074U | 2015-06-24 | |||
| CN104635401A | 2015-05-20 | |||
| CN107193105A | 2017-09-22 | |||
| US8805176B1 | 2014-08-12 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
Download PDF: