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Patent Searching and Data


Title:
LENS-DRIVING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/020723
Kind Code:
A1
Abstract:
[Problem] To provide a lens-driving apparatus in which the thrust for movement in the optical axis direction is stabilized. [Solution] A lens-driving apparatus characterized by comprising: a lens-holding member capable of holding a lens; a first coil 13 fixed to the periphery of the lens holding member; a permanent magnet EM provided at the outside of the first coil 13 so as to face the first coil 13; a biasing member for supporting the lens-holding member so as to be movable in the optical axis direction; and a fixing member R6 to which the permanent magnet EM is fixed. The fixing member R6 has: a positioning part 76 capable of abutting the inner surface EMp of the permanent magnet EM which faces the first coil 13 side; and a facing wall section 46 facing the outer surface EMq of the permanent magnet EM which is on the reverse side from the inner surface EMp. The permanent magnet EM is fixed by the fixing member R6 in a state of being positioned by the positioning part 76.

Inventors:
GOMYO HIDEYUKI (JP)
ISHIGURO KATSUYUKI (JP)
SARUDATE AKIYOSHI (JP)
Application Number:
PCT/JP2017/008237
Publication Date:
February 01, 2018
Filing Date:
March 02, 2017
Export Citation:
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Assignee:
ALPS ELECTRIC CO LTD (JP)
International Classes:
G02B7/04; G03B5/00
Domestic Patent References:
WO2016006168A12016-01-14
WO2011024805A12011-03-03
WO2011013679A12011-02-03
Foreign References:
JP2011039463A2011-02-24
JP2007264576A2007-10-11
JP2013513821A2013-04-22
Attorney, Agent or Firm:
NOZAKI, Teruo (JP)
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