Image stabilization apparatus, imaging apparatus, and optical apparatus

An imaging apparatus comprising:

• an image stabilization apparatus including,
• a first lens unit including a first correction lens;
• a second lens unit including a second correction lens that has a power opposite to that of the first correction lens;
• a supporting unit configured to support the first lens unit and the second lens unit aligned in an optical axis direction so that the first lens unit and the second lens unit can independently move in a direction perpendicular to the optical axis;
• a driving unit configured to drive at least one of the first lens unit and the second lens unit in the direction perpendicular to the optical axis;
• a shake detection unit configured to detect a shake added to the image stabilization apparatus;
• a shake correction unit configured to supply a drive signal to the driving unit to correct the shake based on an output of the shake detection unit;
• and
• a connecting unit configured to mechanically connect the first lens unit and the second lens unit,
• wherein the connecting unit is configured to enable the first lens unit and the second lens unit to move in mutually opposite directions on a plane perpendicular to the optical axis when the first lens unit and the second lens unit are driven by the driving unit, and to cancel a moving component of the optical axis in the direction perpendicular to the optical axis caused by movement of the first lens unit and the second lens unit.

An optical apparatus comprising:

• an image stabilization apparatus including,
• a first lens unit including a first correction lens;
• a second lens unit including a second correction lens that has a power opposite to that of the first correction lens;
• a supporting unit configured to support the first lens unit and the second lens unit aligned in an optical axis direction so that the first lens unit and the second lens unit can independently move in a direction perpendicular to the optical axis;
• a driving unit configured to drive at least one of the first lens unit and the second lens unit in the direction perpendicular to the optical axis;
• a shake detection unit configured to detect a shake added to the image stabilization apparatus;
• a shake correction unit configured to supply a drive signal to the driving unit to correct the shake based on an output of the shake detection unit;
• and
• a connecting unit configured to mechanically connect the first lens unit and the second lens unit,
• wherein the connecting unit is configured to enable the first lens unit and the second lens unit to move in mutually opposite directions on a plane perpendicular to the optical axis when the first lens unit and the second lens unit are driven by the driving unit, and to cancel a moving component of the optical axis in the direction perpendicular to the optical axis caused by movement of the first lens unit and the second lens unit.

An image stabilization apparatus comprising:

• a first lens unit including a first correction lens;
• a second lens unit including a second correction lens that has a power opposite to that of the first correction lens;
• a supporting unit configured to support the first lens unit and the second lens unit aligned in an optical axis direction so that the first lens unit and the second lens unit can independently move in a direction perpendicular to the optical axis;
• a first coil fixed to the first lens unit;
• a first magnet fixed to the first lens unit;
• a second coil fixed to the second lens unit;
• a second magnet fixed to the second lens unit;
• a shake detection unit configured to detect a shake added to the image stabilization apparatus;
• and
• a shake correction unit configured to correct the shake by supplying current to the first coil and the second coil,
• wherein the first coil and the first magnet are disposed in a confronting relationship, and the second coil and the second magnet are disposed in a confronting relationship, so that the first lens unit and the second lens unit can move in mutually opposite directions on a plane perpendicular to the optical axis.

An image stabilization apparatus comprising:

• a first lens unit including a first correction lens;
• a second lens unit including a second correction lens that has a power opposite to that of the first correction lens;
• a supporting unit configured to support the first lens unit and the second lens unit aligned in an optical axis direction so that the first lens unit and the second lens unit can independently move in a direction perpendicular to the optical axis;
• a first coil fixed to the first lens unit;
• a second coil fixed to the first lens unit;
• a first magnet fixed to the second lens unit;
• a second magnet fixed to the second lens unit;
• a shake detection unit configured to detect a shake added to the image stabilization apparatus;
• and
• a shake correction unit configured to supply a drive signal to the first coil and the second coil to correct the shake,
• wherein the first coil and the first magnet are disposed in a confronting relationship, and the second coil and the second magnet are disposed in a confronting relationship, so that the first lens unit and the second lens unit can move in mutually opposite directions on a plane perpendicular to the optical axis.

An image stabilization apparatus comprising:

• a first lens unit including a first correction lens;
• a second lens unit including a second correction lens that has a power opposite to that of the first correction lens;
• a supporting unit configured to support the first lens unit and the second lens unit aligned in an optical axis direction so that the first lens unit and the second lens unit can independently move in a direction perpendicular to the optical axis;
• a stationary member to which the supporting unit is attached;
• a first coil fixed to the first lens unit;
• a second coil fixed to the second lens unit;
• a first magnet and a second magnet fixed to the stationary member;
• a shake detection unit configured to detect a shake added to the image stabilization apparatus;
• a shake correction unit configured to supply a drive signal to a driving unit to correct the shake;
• and
• a connecting unit configured to mechanically connect the first lens unit and the second lens unit, wherein the first coil and the first magnet are disposed in a confronting relationship and the second coil and the second magnet are disposed in a confronting relationship, so that the first lens unit and the second lens unit can move in mutually opposite directions on a plane perpendicular to the optical axis,
• wherein the first coil of the first lens unit, the second coil of the second lens unit, and the first and second magnets provided on the stationary member constitute the driving unit.