Optical element driving system and mechanism thereof

An optical element driving mechanism, comprising:

• a fixed part, comprising a base;
• a movable part, movably connected to the fixed part, carrying an optical element having an optical axis;
• a metallic member, disposed on the base, comprising an inner electrical connection part and an outer electrical connection part, wherein the inner electrical connection part and the outer electrical connection part are connected to each other;
• a driving assembly, comprising at least one driving magnetic element and a coil, wherein the driving assembly drives the movable part to move relative to the fixed part, and the coil comprises a coil extension;
• an elastic assembly, comprising a lower spring, wherein the lower spring is elastically connected to the fixed part and the movable part;
• and
• a position sensing assembly, electrically connected to the inner electrical connection part via an internal circuit,
• wherein the inner electrical connection part is disposed on a first side of the base, and the outer electrical connection part is disposed on a second side of the base,
• wherein the first side is perpendicular to the second side when observed along the optical axis,
• wherein the inner electrical connection part is extended along the optical axis,
• wherein the coil extension is electrically connected to the lower spring,
• wherein the inner electrical connection part is connected to the lower spring by a connector, thereby the inner electrical connection part is electrically connected to the coil and the position sensing assembly,
• wherein no inner electrical connection part is disposed on the second side of the base, and no outer electrical connection part is disposed on the first side of the base,
• wherein the surface of the first side and the surface of the second side are parallel to the optical axis.