Optical element driving system

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.