| 摘要 |
The optical apparatus includes, as actuators to move a movable member in a first direction, a first coil and a second coil provided to a base member or the movable member, and a first magnet and a second magnet provided to the movable member or the base member. The first magnet has a first surface facing the first coil, and the second magnet has a second surface facing the second coil. Each of the first and second surfaces has thereon N- and S-pole portions arranged in the first direction. In a state where the movable member is located at a center of its movable range, center positions of the first and second coils have differences from boundary positions of the N- and S-pole portions of the first and second magnets. |
| 主权项 |
1. An optical apparatus comprising:
a base member; a movable member holding a first element that is an optical element or an image sensor and being movable with respect to the base member in a first direction; a first actuator including a first coil and a first magnet, the first coil being provided to a first member that is one of the base and movable members, the first magnet being provided to a second member that is another one of the base and movable members, the first coil and the first magnet facing each other in a second direction orthogonal to the first direction; and a second actuator including a second coil and a second magnet, the second coil being provided to one of the first and second members, the second magnet being provided to another one of the first and second members, the second coil and the second magnet facing each other in the second direction, wherein: the first element is disposed between the first and second actuators; the first magnet has a first surface facing the first coil, and the second magnet has a second surface facing the second coil, each of the first and second surfaces having thereon an N-pole portion and an S-pole portion arranged in the first direction; the first and second actuators are configured to move the movable member in the first direction; and in a first state where the movable member is located at a center of its movable range in the first direction, a center position of the first coil has a difference from to a boundary position of the N-pole and S-pole portions of the first magnet, and a center position of the second coil has a difference from a boundary position of the N-pole and S-pole portions of the second magnet. |
