US 12,235,513 B2
Optical element driving system
Shun-Chieh Tang, Taoyuan (TW); Chen-Chi Kuo, Taoyuan (TW); Yi-Chun Cheng, Taoyuan (TW); Ming-Chun Hsieh, Taoyuan (TW); Ya-Hsiu Wu, Taoyuan (TW); Ying-Jen Wang, Taoyuan (TW); and Sin-Jhong Song, Taoyuan (TW)
Assigned to TDK TAIWAN CORP., Taoyuan (TW)
Filed by TDK TAIWAN CORP., Taoyuan (TW)
Filed on May 9, 2023, as Appl. No. 18/314,171.
Application 18/314,171 is a continuation of application No. 16/938,596, filed on Jul. 24, 2020, granted, now 11,681,114.
Claims priority of provisional application 62/894,295, filed on Aug. 30, 2019.
Claims priority of provisional application 62/879,190, filed on Jul. 26, 2019.
Prior Publication US 2023/0273395 A1, Aug. 31, 2023
Int. Cl. G02B 7/02 (2021.01); G02B 7/08 (2021.01); G02B 7/09 (2021.01); G02B 7/20 (2021.01); G02B 27/64 (2006.01); G03B 3/10 (2021.01); G03B 5/00 (2021.01); H04N 23/68 (2023.01)
CPC G02B 7/028 (2013.01) [G02B 7/02 (2013.01); G02B 7/08 (2013.01); G02B 7/09 (2013.01); G02B 7/20 (2013.01); G02B 27/646 (2013.01); G03B 3/10 (2013.01); G03B 5/00 (2013.01); G03B 2205/0076 (2013.01); G03B 2206/00 (2013.01); H04N 23/6812 (2023.01)] 13 Claims
OG exemplary drawing
 
1. An optical element driving system, comprising:
an optical element driving mechanism, comprising:
a first movable portion used for connecting an optical element;
a second movable portion used for connecting a second optical element;
a third movable portion used for connecting a third optical element;
a fixed portion, wherein the first movable portion is movable relative to the fixed portion along a main axis and in a first direction and a second direction perpendicular to the main axis, the second movable portion is movable relative to the fixed portion along the main axis and in the first direction, and the third movable portion is movable relative to the fixed portion along the main axis and in the first direction, wherein the first direction is perpendicular to the second direction, and the first movable portion, the second movable portion, and the third movable portion are in an accommodating space in the fixed portion;
a first driving assembly used for driving the first movable portion to move relative to the fixed portion, comprising a first driving element, and the material of the first driving element comprises shape memory alloy;
a second driving assembly used for driving the second movable portion to move relative to the fixed portion;
a third driving assembly used for driving the third movable portion to move relative to the fixed portion, wherein the first movable portion, the second movable portion, and the third movable portion are arranged along the main axis, and the first driving assembly, the second driving assembly, and the third driving assembly are disposed on an identical side of a first surface of the fixed portion; and
a control assembly used for controlling the first driving assembly.