US 12,222,579 B2
Optical element driving system
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 Nov. 15, 2023, as Appl. No. 18/510,154.
Application 18/510,154 is a continuation of application No. 16/938,684, filed on Jul. 24, 2020, granted, now 11,852,888.
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 2024/0085657 A1, Mar. 14, 2024
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)] 10 Claims
OG exemplary drawing
 
1. An optical element driving system, comprising:
an optical element driving mechanism, comprising:
a movable portion used for connecting an optical element;
a fixed portion, wherein the movable portion is movable relative to the fixed portion, and the movable portion is in an accommodating space in the fixed portion;
a driving assembly used for driving the movable portion to move relative to the fixed portion, comprising a first driving element, and a material of the first driving element comprises shape memory alloy; and
a control assembly used for controlling the driving assembly; and
an inertia-sensing assembly used for detecting a movement of the optical element driving mechanism and providing an inertia-sensing signal to the control assembly,
wherein the control assembly provides a driving signal based on control information, and
the control information comprises:
posture correcting information corresponding to the inertia-sensing signal, used for correcting a relationship between a movement of the movable portion relative to the fixed portion and the driving signal, wherein the posture correcting information is defined as a state of the movable portion relative to the fixed portion in different gravity directions measured by an external equipment;
a predetermined position used for defining a condition of the movable portion relative to the fixed portion when the optical element driving mechanism is started; and
a predetermined movable range defining a maximum movable range of the movable portion relative to the fixed portion.