Moving magnet type optical lens driving device

The utility model discloses a moving magnet type optical lens driving device. The sensor comprises a shell and a base connected with the shell, a carrier is arranged in the shell, an upper reed and alower reed are arranged at the upper end and the lower end of the carrier respectively, magnets are arranged at the four corners of the carrier respectively, printed circuit board coils located on theouter sides of the magnets are arranged at the four corners of the base respectively, and a Hall element is arranged on each printed circuit board coil. The magnet is arranged on the carrier to be used as a'rotor '; the printed circuit board coil is used as a stator; a Hall element is arranged on a coil of a printed circuit board; the Hall element can detect the rotor when the rotor moves; the motion position of the motor is detected to form a closed loop, and four independent coils and magnets are arranged at four corners of the carrier, so that the motion direction of each corner of the mover can be respectively con