Lens driving apparatus, photographing module and electronic device

A lens driving apparatus, which is for driving a lens assembly, the lens driving apparatus comprising:

• a holder comprising a holder opening;
• a metal cover coupled to the holder and comprising a cover opening, which is disposed correspondingly to the holder opening;
• a carrier having a central axis, wherein the carrier is for being assembled with the lens assembly, the carrier is disposed in the metal cover and is displaceable relative to the holder along a direction parallel to the central axis;
• at least one detection magnet coupled to an end of the carrier, wherein the end of the carrier is close to the holder;
• at least one position detection unit disposed on the holder and correspondingly to the detection magnet, wherein the position detection unit is for detecting a displacement along the direction parallel to the central axis of the detection magnet;
• a coil wound around and disposed on an outer surface of the carrier;
• and
• at least two driving magnets disposed in the metal cover and correspondingly to the coil;
• wherein the holder further comprises:
• a plurality of terminal portions extended outward from the holder along the direction parallel to the central axis;
• and
• a plurality of conductive portions exposed on a surface of the holder, wherein four of the conductive portions are arranged as a grid array of two rows and two columns, and the four of the conductive portions are disposed correspondingly to the position detection unit.