US 11,283,974 B2Granted

Lens driving unit, and camera module and optical apparatus including same

AssigneeLG Innotek Co., Ltd.

InventorsKap Jin Lee, Hyun Soo Kim

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Abstract

An embodiment comprises a housing, a bobbin disposed in the housing, a first coil disposed on the bobbin, a magnet disposed in the housing, an upper spring coupled to an upper part of the bobbin and an upper part of the housing, a circuit substrate disposed under the housing, a support member electrically connecting the upper spring and the circuit substrate, and a damper disposed on the upper spring, wherein the upper spring comprises an outer side portion coupled to the housing, a first coupling portion coupled to the support member, and a first connecting portion which connects the outer side portion and the first coupling portion, the first coupling portion further comprises a first extension extending from the first coupling portion toward the outer side portion, the first extension is spaced apart from the outer side portion, and the damper connects the first extension and the outer side portion.

Claims18

Dependent claims

A lens moving apparatus comprising:

a housing;
a bobbin disposed in the housing;
a first coil disposed on the bobbin;
a magnet disposed on the housing;
an upper spring coupled both to an upper portion of the bobbin and to an upper portion of the housing;
a circuit board disposed under the housing;
a support member conductively connecting the upper spring to the circuit board;
a damper member disposed on the upper spring;
and
a second coil disposed on an outer surface of a side portion of the housing so as to generate induction voltage by interaction with the first coil,
wherein the upper spring comprises:
an outer portion coupled to the housing;
a first coupling portion coupled to the support member;
and
a first connecting portion connecting the outer portion to the first coupling portion,
wherein the first coupling portion further comprises a first extension, which extends toward the outer portion from the first coupling portion,
wherein the first extension and the first coupling portion are formed as a single body,
wherein the first extension is spaced apart from the outer portion,
wherein the damper member connects the first extension to the outer portion,
wherein the damper member is spaced apart from the housing,
wherein the housing comprises first and second projections disposed on an upper surface thereof, and the upper spring comprises a first spring and a second spring, and
wherein a portion of the second coil is wound at least one turn around the first projection and is connected to the first spring, and a remaining portion of the second coil is wound at least one turn around the second projection and is connected to the second spring.

19 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 the housing;
a second coil disposed on an outer surface of the housing and generating induction voltage by interaction with the first coil;
an upper spring coupled both to an upper portion of the bobbin and to an upper portion of the housing;
a circuit board disposed under the housing;
a third coil disposed on the circuit board to be opposite to the magnet in an optical direction;
a support member conductively connecting the upper spring to the circuit board;
and
a damper member disposed on the upper spring,
wherein the upper spring comprises:
a first coupling portion coupled to the support member;
a second coupling portion coupled to the housing;
a connecting portion connecting the first coupling portion and the second coupling portion;
and
an extension portion extending toward the second coupling portion from the first coupling portion and being spaced apart from the second coupling portion,
wherein the extension portion and the first coupling portion are formed as a single body,
wherein the damper member connects the extension portion to the second coupling portion,
wherein the damper member is spaced apart from the housing,
wherein the upper spring comprises:
a first upper spring electrically connected to one end of the first coil;
a second upper spring electrically connected to the other end of the first coil;
a third upper spring electrically connected to the one end of the second coil;
and
a fourth upper spring electrically connected to the other end of the second coil, and
wherein the support member comprises:
a first support member connecting to the first upper spring;
a second support member connecting to the second upper spring;
a third support member connecting to the third upper spring;
and
a fourth support member connecting to the fourth upper spring.

29 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 the housing;
an upper spring coupled both to an upper portion of the bobbin and to an upper portion of the housing;
a circuit board disposed under the housing;
a support member conductively connecting the upper spring to the circuit board;
and
a damper member disposed on the upper spring,
wherein the upper spring comprises:
an outer portion coupled to the housing at a corner of the housing;
a first coupling portion coupled to the support member;
and
a first connecting portion connecting the outer portion to the first coupling portion,
wherein the outer portion comprises:
a second coupling portion disposed at a first side portion of the housing and coupled to the housing;
a third coupling portion disposed at a second side portion adjacent to the first side portion of the housing and coupled to the housing;
and
a second connecting portion connecting the second coupling portion to the third coupling portion,
wherein the first connecting portion comprises:
a third connecting portion connecting the second coupling portion to the first coupling portion;
and
a fourth connecting portion connecting the third coupling portion to the first coupling portion,
wherein the first coupling portion comprises a coupling region at which the support member is coupled to the first coupling portion and a first extension extending toward the outer portion from the coupling region,
wherein the first coupling portion has a first length longer than a second length of the first coupling portion,
wherein the first length is a distance between the coupling region and one end of the first coupling portion which extends in a direction in which the first extension extends,
wherein the second length is a distance between the coupling region and a remaining end of the first coupling portion which extends in a direction opposite the direction in which the first extension extends,
wherein the first extension and the first coupling portion are formed as a single body,
wherein the first extension is spaced apart from each of the third and fourth connecting portions,
wherein the damper member is disposed between the first extension and the second connecting portion,
wherein the damper member connects the first extension to the outer portion, and
wherein the damper member is spaced apart from the housing.

29 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/603,032Filed 4 Apr 2018
Priority: KR 10-2017-00441755 Apr 2017
Published: US 2020/0195815 A118 Jun 2020
Granted: 22 Mar 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

G02B 7/08
With mechanism for focusing or varying magnification: adapted to co-operate with a remote control mechanism
H04N 23/54
Constructional details: mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
G02B 27/646
Imaging systems using optical elements for stabilisation of the lateral and angular position of the image: compensating for small deviations, e.g.…
G03B 5/00
Adjustment of optical system relative to image or object surface other than