Lens actuator
AssigneePanasonic Corporation
InventorsNorifumi Sata, Hidekazu Tanaka
Life of this patent
Estimating the term…
Abstract
A lens actuator includes a cylindrical carrier having a hollow for accommodating a lens, the hollow being formed in a first direction; a driving yoke for housing the carrier; a base for holding the yoke thereon; a driving magnet and a driving coil, which are fixed either to the outer periphery of the carrier or the driving yoke; a moving magnet fixed to the driving yoke; and a moving coil fixed to the base. The carrier is movable with respect to the driving yoke in the first direction, and the driving yoke is movable with respect to the base in a second direction perpendicular to the first direction. The driving magnet and the driving coil face each other in the second direction, and the moving magnet and the moving coil face each other in the first direction.
Claims6
A lens actuator comprising:
- a cylindrical carrier having a hollow for accommodating a lens, the hollow being formed in a first direction;
- a driving yoke for housing the carrier;
- a base for holding the driving yoke thereon;
- a driving magnet fixed to one of an outer periphery of the carrier and the driving yoke;
- a driving coil fixed to one of the outer periphery of the carrier and the driving yoke;
- a moving magnet fixed to the driving yoke;
- and
- a moving coil fixed to the base, wherein
- the carrier is movable with respect to the driving yoke in the first direction,
- the driving yoke is movable with respect to the base in a second direction perpendicular to the first direction,
- when the driving magnet is fixed to the outer periphery of the carrier, the driving coil is fixed to the driving yoke,
- when the driving magnet is fixed to the driving yoke, the driving coil is fixed to the carrier,
- the driving magnet and the driving coil face each other in the second direction, and
- the moving magnet and the moving coil face each other in the first direction.
A lens actuator comprising:
- a cylindrical carrier having a hollow for accommodating a lens, the hollow being formed in a first direction;
- a driving yoke for housing the carrier;
- a base for holding the driving yoke thereon;
- a driving magnet fixed to one of an outer periphery of the carrier and the driving yoke;
- a driving coil fixed to one of the outer periphery of the carrier and the driving yoke;
- a moving magnet fixed to the base, and
- a moving coil fixed to the driving yoke, wherein
- the carrier is movable with respect to the driving yoke in the first direction,
- the driving yoke is movable with respect to the base in a second direction perpendicular to the first direction,
- when the driving magnet is fixed to the outer periphery of the carrier, the driving coil is fixed to the driving yoke,
- when the driving magnet is fixed to the driving yoke, the driving coil is fixed to the carrier,
- the driving magnet and the driving coil face each other in the second direction, and
- the moving magnet and the moving coil face each other in the first direction.
Dependencies are inferred from the claim text.