US 11,808,948 B2
Optical member driving mechanism
Yi-Ho Chen, Taoyuan (TW); Ichitai Moto, Taoyuan (TW); Yi-Liang Chan, Taoyuan (TW); Chen-Chi Kuo, Taoyuan (TW); and Sin-Jhong Song, Taoyuan (TW)
Assigned to TDK TAIWAN CORP., Taoyuan (TW)
Filed by TDK TAIWAN CORP., Taoyuan (TW)
Filed on Nov. 23, 2020, as Appl. No. 17/101,998.
Application 17/101,998 is a continuation of application No. 15/812,461, filed on Nov. 14, 2017, granted, now 10,877,290.
Claims priority of provisional application 62/421,592, filed on Nov. 14, 2016.
Claims priority of application No. 201711084636.9 (CN), filed on Nov. 7, 2017.
Prior Publication US 2021/0080745 A1, Mar. 18, 2021
Int. Cl. G02B 27/64 (2006.01); G02B 7/08 (2021.01); G03B 5/04 (2021.01); G03B 13/36 (2021.01); G02B 7/02 (2021.01); G01D 5/14 (2006.01); H04N 23/55 (2023.01); H02K 11/215 (2016.01); G02B 7/09 (2021.01); H02K 41/035 (2006.01)
CPC G02B 27/646 (2013.01) [G02B 7/023 (2013.01); G02B 7/08 (2013.01); G03B 5/04 (2013.01); G03B 13/36 (2013.01); G01D 5/145 (2013.01); G02B 7/09 (2013.01); G03B 2205/0015 (2013.01); G03B 2205/0069 (2013.01); H02K 11/215 (2016.01); H02K 41/0356 (2013.01); H04N 23/55 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An optical member driving mechanism, comprising:
a movable module, comprising a holder and a housing, wherein the holder is configured to connect an optical member and is movable relative to the housing;
a first driving module, configured to drive the holder to move relative to the housing; and
a position detecting module, configured to detect the movement of the holder relative to the housing along a first direction, wherein the position detecting module comprises:
a magnetic member, comprising a first N pole and a first S pole, wherein the first N pole and the first S pole are arranged along the first direction; and
a position detector, detecting the movement of the holder relative to the housing by measuring the magnetic field generated from the first N pole and the first S pole;
wherein the magnetic member does not overlap the position detector as seen from all directions that are perpendicular to the first direction.