Title:
LENS DRIVING APPARATUS, AND CAMERA MODULE AND OPTICAL DEVICE INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2017/160094
Kind Code:
A1
Abstract:
One embodiment comprises: a housing; a bobbin arranged inside the housing so as to mount a lens therein; a magnet arranged in the housing; a first coil, which is arranged in the bobbin and moves in the optical axial direction according to an interaction with the magnet; an elastic member coupled with the bobbin and the housing; a second coil to which a first driving signal is applied, and moving the housing in a direction perpendicular to the optical axial direction according to the interaction with the magnet; a location sensor for sensing the strength of the magnetic field of the magnet according to the movement of the housing; and a third coil to which a second driving signal is applied, and is arranged in correspondence with the location sensor, wherein a first magnetic field, of the second coil, which is generated by the first driving signal, and a second magnetic field, of the third coil, which is generated by the second driving signal, are generated in directions offsetting each other.
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Inventors:
PARK TAE BONG (KR)
LEE JUN TAEK (KR)
YOO KYOUNG HO (KR)
SHIN SEUNG TAEK (KR)
HAN JIN SUK (KR)
LEE JUN TAEK (KR)
YOO KYOUNG HO (KR)
SHIN SEUNG TAEK (KR)
HAN JIN SUK (KR)
Application Number:
PCT/KR2017/002834
Publication Date:
September 21, 2017
Filing Date:
March 16, 2017
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
G03B17/08; G02B7/02; G03B5/04; G03B11/04
Foreign References:
| KR20150007699A | 2015-01-21 | |||
| KR20150051097A | 2015-05-11 | |||
| KR20150109894A | 2015-10-02 | |||
| KR20160021158A | 2016-02-24 | |||
| US20160025995A1 | 2016-01-28 |
Other References:
See also references of EP 3432064A4
Attorney, Agent or Firm:
PARK, Young Bok et al. (KR)
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