Patent ID: 11953347
Assignee: TDK CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A lens module comprising:
a substrate;
a lens whose position relative to the substrate is variable;
a first magnet and a second magnet that are disposed such that the lens is located between the first magnet and the second magnet in a first direction orthogonal to a direction of an optical axis of the lens;
a third magnet and a fourth magnet that are disposed such that the lens is located between the third magnet and the fourth magnet in a second direction orthogonal to the direction of the optical axis of the lens;
a plurality of coils configured to move the lens in a direction parallel to the first direction, a direction parallel to the second direction, or the direction of the optical axis of the lens, based on magnetic fields generated by the first to fourth magnets;
a fifth magnet provided such that its position relative to the second and third magnets is variable;
a sixth magnet provided such that its position relative to the first and fourth magnets is variable;
a first magnetic sensor configured to detect a first detection-target magnetic field that is a composite magnetic field based on the second, third, and fifth magnets; and
a second magnetic sensor configured to detect a second detection-target magnetic field that is a composite magnetic field based on the first, fourth, and sixth magnets.