Patent ID: 7663271

Claim:
An actuator comprising: magnets arranged on a plane on a plane; coils respectively arranged to face the magnets and move relatively with facing the magnets when a current is applied thereto; a moving member connected to either the magnets or coils; a guide member that guides the moving member to move in a given two-dimensional range; and a hit prevention mechanism to prevent the moving member from hitting a movable limit in the given two-dimensional range, wherein: the guide member guides the moving member in first and second axial directions perpendicular to each other, the hit prevention mechanism is provided for each of the first and second axial directions, and is further provided in diagonal directions of the given two-dimensional range different from the first and second axial directions, and the hit prevention mechanism provided in the diagonal directions preventing the moving members from the hitting the movable limit due to diagonal movements of the moving member in the given two-dimensional range.