US 11,719,996 B2
Optical element driving mechanism
Chao-Chang Hu, Taoyuan (TW); Chen-Hsien Fan, Taoyuan (TW); Chih-Wen Chiang, Taoyuan (TW); Chia-Che Wu, Taoyuan (TW); and Yu-Chiao Lo, Taoyuan (TW)
Assigned to TDK TAIWAN CORP., Taoyuan (TW)
Filed by TDK TAIWAN CORP., Taoyuan (TW)
Filed on Nov. 17, 2020, as Appl. No. 16/950,263.
Claims priority of provisional application 63/065,865, filed on Aug. 14, 2020.
Claims priority of provisional application 63/041,459, filed on Jun. 19, 2020.
Claims priority of application No. 202022232527.0 (CN), filed on Oct. 9, 2020.
Prior Publication US 2021/0397067 A1, Dec. 23, 2021
Int. Cl. G03B 5/02 (2021.01); G02B 7/28 (2021.01); G02B 7/36 (2021.01)
CPC G03B 5/02 (2013.01) [G02B 7/285 (2013.01); G02B 7/36 (2013.01); G03B 2205/0069 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical element driving mechanism, comprising:
a movable portion used for connecting to an optical element, and the optical element has an optical axis;
a fixed portion, wherein the movable portion is movable relative to the fixed portion;
a driving assembly used for driving the movable portion to move relative to the fixed portion; and
a support assembly, wherein the movable portion is movable relative to the fixed portion through the support assembly,
wherein the movable portion comprises:
a second stopping structure used for limiting the movable portion to move relative to the fixed portion in a movable range, wherein the second stopping structure has a second stopping surface facing the fixed portion; and
a first lightening structure positioned at the second stopping surface and having a recessed shape, used for reducing the weight of the movable portion.