Patent ID: 9407799
Filing Date: 2016-08-02
CPC Classification: G02B,G03B,H04N

Claim Text:
1. A position detection apparatus that detects a position of a lens on a plane orthogonal to an optical axis direction of the lens to detect a position for optical image stabilization, and detects a position of the lens in the optical axis direction to detect a position for autofocus, the position detection apparatus comprising: a magnet configured to move as the lens moves in the optical axis direction and in an in-plane direction orthogonal to the optical axis, the magnet being made of a single body including an S pole and an N pole aligned in a direction parallel to the optical axis direction, and the S pole and the N pole aligned in a direction orthogonal to the optical axis direction; a first position sensor for the autofocus configured to sense a magnetic field to be changed according to the movement of the magnet in the optical axis direction to detect the position of the lens in the optical axis direction; and a second position sensor for the optical image stabilization configured to sense a magnetic field to be changed according to the movement of the magnet in the plane orthogonal to the optical axis direction to detect the position of the lens on the plane orthogonal to the optical axis direction.