Rotating device, barrel unit, image sensing apparatus installed with the same

A barrel unit, comprising:

• a barrel including a built-in-photographing optical system having an image sensing device;
• a supporting plate for pivotally supporting the barrel at least at three points of first to third points;
• driving forces being given to the barrel for shake correction;
• the barrel having an arbitrary point located at inner sides of the three supporting points, a first axis which is an axis located on a specified plane including the arbitrary point and passing the arbitrary point, a second axis passing the arbitrary point and orthogonal to the first axis on the plane, and a third axis which is an axis perpendicular to the plane and passing the arbitrary point;
• a first actuator for giving a driving force along a direction parallel with the third axis, the first supporting point being an acting portion of the first actuator;
• a second actuator for giving a driving force along a direction parallel with the third axis, the second supporting point located at a side of the first or second axis opposite to the first supporting point being an acting portion of the second actuator;
• a supporting portion provided at the third supporting point to support the barrel rotatably about a first rotation axis extending in a direction parallel with the first axis and/or a second rotation axis extending in a direction parallel with the second axis by the driving forces given by the first and second actuators,
• a first position detector located on or near a line connecting the acting portions of the first and second actuators, including a detecting portion near the acting portion of the first actuator and adapted to detect the rotational posture of the barrel;
• and
• a second position detector located on or near the line connecting the acting portions of the first and second actuators, including a detecting portion near the acting portion of the second actuator and adapted to detect the rotational posture of the barrel.

An image sensing apparatus, comprising:

• a barrel unit including a barrel having a built-in photographing optical system including an image sensing device, and a supporting plate for pivotally supporting the barrel at least at three points of first to third points, driving forces being given to the barrel for shake correction,
• a shake detector for detecting a shake amount given to the image sensing apparatus installed with the barrel unit, a shake correction controller for generating shake correction drive signals for actuators provided in the barrel unit in accordance with the shake amount detected by the shake detector,
• the barrel having an arbitrary point located at inner sides of the three supporting points, a first axis which is an axis located on a specified plane including the arbitrary point and passing the arbitrary point, a second axis passing the arbitrary point and orthogonal to the first axis on the plane, and a third axis which is an axis perpendicular to the plane and passing the arbitrary point, wherein the barrel unit includes:
• a first actuator for giving a driving force along a direction parallel with the third axis, the first supporting point being an acting portion of the first actuator,
• a second actuator for giving a driving force along a direction parallel with the third axis, the second supporting point located at a side of the first or second axis opposite to the first supporting point being an acting portion of the second actuator,
• a supporting portion provided at the third supporting point to support the barrel rotatably about a first rotation axis extending in a direction parallel with the first axis and/or a second rotation axis extending in a direction parallel with the second axis by the driving forces given by the first and second actuators,
• a first position detector located on or near a line connecting the acting portions of the first and second actuators, including a detecting portion near the acting portion of the first actuator and adapted to detect the rotational posture of the barrel, and
• a second position detector located on or near the line connecting the acting portions of the first and second actuators, including a detecting portion near the acting portion of the second actuator and adapted to detect the rotational posture of the barrel.