US 11,947,182 B2
Optical element driving mechanism
Chao-Chang Hu, Taoyuan (TW); Che-Wei Chang, Taoyuan (TW); and Chen-Er Hsu, Taoyuan (TW)
Assigned to TDK TAIWAN CORP., Taoyuan (TW)
Filed by TDK TAIWAN CORP., Taoyuan (TW)
Filed on Dec. 27, 2019, as Appl. No. 16/728,861.
Claims priority of provisional application 62/785,593, filed on Dec. 27, 2018.
Claims priority of application No. 19218902 (EP), filed on Dec. 20, 2019.
Prior Publication US 2021/0191065 A1, Jun. 24, 2021
Int. Cl. G02B 7/04 (2021.01); G02B 3/00 (2006.01); G02B 3/12 (2006.01); G02B 7/09 (2021.01); G02B 26/00 (2006.01); G02B 27/64 (2006.01); G03B 5/00 (2021.01); G03B 13/36 (2021.01); H04N 5/225 (2006.01); H04N 23/55 (2023.01); H04N 23/68 (2023.01)
CPC G02B 7/09 (2013.01) [G02B 3/00 (2013.01); G02B 3/12 (2013.01); G02B 7/04 (2013.01); G02B 26/004 (2013.01); G02B 27/646 (2013.01); G03B 5/00 (2013.01); G03B 13/36 (2013.01); H04N 23/55 (2023.01); H04N 23/681 (2023.01); G03B 2205/0007 (2013.01); G03B 2205/0053 (2013.01); G03B 2205/0069 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical element driving mechanism, having an optical axis, comprising:
a movable part;
a fixed part, comprising a sidewall parallel to the optical axis; and
a driving assembly, driving the movable part to move relative to the fixed part, wherein the sidewall is not in direct contact with the driving assembly,
wherein the driving assembly comprises:
a deformation element, having a first end and a second end;
a piezoelectric element, in contact with the first end of the deformation element; and
a connecting element, clamped by the second end of the deformation element,
wherein the driving assembly drives the movable part to rotate about a direction perpendicular to the optical axis relative to the fixed part,
wherein the movable part comprises a fixing element, the movable part is movably connected to the fixed part via the connecting element and the fixing element, and the connecting element comprises:
a first part, having a first surface, the first surface facing away from the movable part;
a second part, having a second surface, the second surface facing the movable part, and a shortest distance between the second surface and the fixing element is longer than a shortest distance between the first surface and the fixing element,
wherein the second surface is in direct contact with the movable part.