Driving apparatus capable of satisfactorily detecting position of movable unit and ensuring large driving thrust, image blur correction apparatus, and image pickup apparatus

An image blur correction apparatus comprising:

• a driving apparatus comprising a fixed member, a movable member, a coil, a position detector configured to detect a position of the movable member, and a first magnet unit and a second magnet unit placed with the coil interposed therebetween;
• and
• a lens that is held by a movable member,
• wherein the movable member is movable in a direction substantially perpendicular to an optical axis of the lens,
• the position detector and the coil are placed on one of the fixed member and the movable member, and the first magnet unit and the second magnet unit are placed on the other one of the fixed member and the movable member;
• the second magnet unit has a concave portion in a central part of a surface facing the position detector, and
• the position detector is placed closer to the second magnet unit than to the first magnet unit.

An image blur correction apparatus comprising:

• a driving apparatus comprising a fixed member, a movable member, a coil, a position detector configured to detect a position of the movable member, and a first magnet unit and a second magnet unit placed with the coil interposed therebetween;
• and
• an image pickup device that is held by a movable member,
• wherein the movable member is movable in a direction substantially parallel to an image forming surface of the image pickup device,
• the position detector and the coil are placed on one of the fixed member and the movable member, and the first magnet unit and the second magnet unit are placed on the other one of the fixed member and the movable member;
• the second magnet unit has a concave portion in a central part of a surface facing the position detector, and
• the position detector is placed closer to the second magnet unit than to the first magnet unit.

An image pickup apparatus equipped with an image blur correction apparatus, the image blur correction apparatus comprising:

• a driving apparatus comprising a fixed member, a movable member, a coil, a position detector configured to detect a position of the movable member, and a first magnet unit and a second magnet unit placed with the coil interposed therebetween;
• and
• a lens that is held by a movable member,
• wherein the movable member is movable in a direction substantially perpendicular to an optical axis of the lens,
• the position detector and the coil are placed on one of the fixed member and the movable member, and the first magnet unit and the second magnet unit are placed on the other one of the fixed member and the movable member;
• the second magnet unit has a concave portion in a central part of a surface facing the position detector, and
• the position detector is placed closer to the second magnet unit than to the first magnet unit.

An image pickup apparatus equipped with an image blur correction apparatus, the image blur correction apparatus comprising:

• a driving apparatus comprising a fixed member, a movable member, a coil, a position detector configured to detect a position of the movable member, and a first magnet unit and a second magnet unit placed with the coil interposed therebetween;
• and
• an image pickup device that is held by a movable member,
• wherein the movable member is movable in a direction substantially parallel to an image forming surface of the image pickup device,
• the position detector and the coil are placed on one of the fixed member and the movable member, and the first magnet unit and the second magnet unit are placed on the other one of the fixed member and the movable member;
• the second magnet unit has a concave portion in a central part of a surface facing the position detector, and
• the position detector is placed closer to the second magnet unit than to the first magnet unit.