Back to results
US 2020/0049939 A1Published application
Lens driving device, and camera module and optical device, which include same
AssigneeLG Innotek Co., Ltd.
InventorsKap Jin Lee, Sang Ok Park, Seung Taek Shin
Life of this patent
Estimating the term…
Abstract
An embodiment comprises: a housing; a bobbin, disposed in the housing, for mounting a lens; a first coil arranged on an outer circumferential surface of the bobbin; a magnet arranged in the housing; a second coil arranged in the housing; and a magnetic member, which is attached to the second coil and increases the strength of an induction voltage induced to the second coil by means of an interaction according to a movement of the first coil.
Claims22
A lens moving apparatus comprising:
- a housing;
- a bobbin disposed in the housing, to which a lens is mounted;
- a first coil disposed on an outer peripheral surface of the bobbin;
- a magnet disposed on the housing;
- a second coil disposed on the housing;
- and
- a magnetic member attached to the second coil and configured to increase an intensity of an induction voltage induced to the second coil by virtue of interaction with the first coil upon movement of the first coil.
4 more elements
(canceled)
(canceled)
A lens moving apparatus comprising:
- a housing;
- a bobbin disposed in the housing;
- a first coil disposed on an outer peripheral surface of the bobbin;
- a magnet disposed on a side portion of the housing;
- a base disposed under the housing;
- a second coil disposed on the base;
- and
- a magnetic member disposed on the second coil and configured to increase an intensity of an induction voltage induced to the second coil by virtue of interaction with the first coil upon movement of the first coil.
5 more elements
A lens moving apparatus comprising:
- a housing;
- a bobbin disposed in the housing;
- a first coil disposed on the bobbin;
- a magnet disposed on a side portion of the housing;
- a second coil disposed on the housing;
- an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing and comprising a first elastic member, a second elastic member, a third elastic member, and a fourth elastic member;
- a lower elastic member coupled to a lower portion of the bobbin and a lower portion of the housing;
- a circuit member disposed under the lower elastic member and including a third coil;
- a circuit board disposed under the circuit member;
- a base disposed under the circuit board;
- a support member comprising first to fourth supporting members corresponding to the first to fourth elastic members;
- and
- a magnetic member disposed on the second coil and configured to increase an intensity of an induction voltage induced to the second coil by virtue of interaction with the first coil upon movement of the first coil,
- wherein the first and second elastic members are connected to the first coil,
- wherein the third and fourth elastic members are connected to the second coil, and
- wherein each of the first to fourth supporting members connects the corresponding one of the first to fourth elastic members to the circuit board.
13 more elements
Dependencies are inferred from the claim text.