Lens driver
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJibuem Chun, Hongjoo Lee, Namki Park, Youngbok Yoon
Life of this patent
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Abstract
An apparatus including a camera module actuator that includes a first coil disposed on a first substrate in a first direction, a first sensor, a first magnet facing the first coil in a second direction, and a second magnet facing the first substrate and the first sensor in the second direction, where the first sensor is disposed without overlapping the first coil in the second direction, the first magnet and the second magnet are separated from each other, and a second gap between the first substrate and the second magnet is greater in the second direction than a first gap between the first substrate and the first magnet in the second direction.
Claims24
An apparatus comprising:
- a camera module actuator comprising:
- a first coil disposed on a first substrate in a first direction;
- a first sensor;
- a first magnet facing the first coil in a second direction;
- a second magnet facing the first substrate and the first sensor in the second direction;
- a third magnet facing a second coil in the first direction, wherein the second coil is disposed on a second substrate in the second direction;
- and
- a fourth magnet facing a second sensor in the first direction,
- wherein the first sensor is disposed without overlapping the first coil in the second direction,
- wherein the first magnet and the second magnet are separated from each other,
- wherein the third magnet and the fourth magnet are separated from each other,
- wherein a second gap between the first substrate and the second magnet is different in the second direction than a first gap between the first substrate and the first magnet in the second direction, and
- wherein a fourth gap between the second substrate and the fourth magnet is different than a third gap between the second substrate and the third magnet in the first direction.
An apparatus comprising:
- a camera module actuator comprising:
- a fine pattern (FP) coil disposed on a substrate in a first direction perpendicular to an optical axis of a lens barrel;
- another coil disposed on the substrate in a second direction perpendicular to the first direction and the optical axis;
- a Hall sensor;
- a driving magnet facing the FP coil in the second direction;
- and
- a sensing magnet, separated from the driving magnet in the first direction, facing the hall sensor and a first portion of the substrate in the second direction, the first portion of the substrate being a portion of the substrate where the FP coil is not disposed,
- wherein the sensing magnet partially overlaps the FP coil in the second direction.
Dependencies are inferred from the claim text.