| 摘要 |
An inertial drive actuator comprising: a displacement means (3); an oscillating substrate (4); a moving element (10); a first magnetic field generating means (11) for generating a magnetic field such that a magnetic attraction force or repellent force acts in the direction facing the moving element (10), the moving element (10) comprising a first yoke which guides the magnetic flux generated by the first magnetic field generating means (11) such that the magnetic flux is concentrated on the surface of the moving element (10) which faces the oscillating substrate (4); and second yokes (12, 22) which are on the reverse side of the oscillating substrate (4) to that facing the moving element (10). Therein, the second yokes (12, 22) control the magnetic field generated from the first magnetic field generating means (11) such that the magnetic flux generated by the first magnetic field generating means (11) has the N pole and S pole thereof concentrated on a surface on a fixed element (20) side, and thus controls the frictional force acting between the moving element (10) and the oscillating substrate (4), and driving the moving element (10). |
