Lens moving apparatus and camera module including same

Patent metadata

Field	Value
Publication number	US-12381465-B2
Application number	US-202318488591-A
Country	US
Kind code	B2
Filing date	Oct 17, 2023
Priority date	Feb 4, 2015
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

A lens moving apparatus, according to one embodiment, comprises: a bobbin having a first coil installed on the outer circumferential surface thereof; a location detection sensor equipped to the bobbin; a housing in which the bobbin is provided; an upper elastic member disposed on the upper side of the housing; and a support member that supports the housing such that the housing can move in a second or third direction that is perpendicular to a first direction, wherein the upper elastic member is divided into a plurality of parts, at least two of which are disposed parallel to each other on the x-y plane in the second or third direction and are disposed such that end portions thereof face each other.

First claim

The invention claimed is:

1. A lens driving device comprising:
a cover member;
a housing disposed in the cover member;
a bobbin disposed in the housing;
a base below the housing;
a first coil disposed on the bobbin;
a magnet disposed on the housing and facing the first coil;
a circuit board disposed on the base and comprising a second coil facing the magnet;
an upper elastic member connecting the housing and the bobbin; and
a support member electrically connecting the upper elastic member and the circuit board,
wherein a portion of the upper elastic member is disposed on an upper surface of the housing,
wherein the housing comprises a first groove recessed from the upper surface of the housing and a second groove recessed from the first groove,
wherein the second groove comprises a floor surface facing the upper elastic member,
wherein the housing comprises a hole formed on the floor surface of the second groove, and
wherein the support member passes through the hole of the housing.

2. The lens driving device of claim 1 , wherein the housing comprises a first protrusion protruding from the upper surface of the housing, and
wherein the upper elastic member comprises a hole coupled to the first protrusion of the housing.

3. The lens driving device of claim 1 , wherein the housing comprises a second protrusion more protruding than the upper elastic member from the upper surface of the housing, and
wherein the second protrusion comprises a first portion disposed inner than the support member.

4. The lens driving device of claim 1 , wherein each of the first and second grooves is opened toward outside.

5. The lens driving device of claim 1 , wherein the floor surface of the housing is overlapped with the upper elastic member in an optical axis direction.

6. A lens driving device comprising:
a cover member;
a housing disposed in the cover member;
a bobbin disposed in the housing;
a base below the housing;
a first coil disposed on the bobbin;
a magnet disposed on the housing and facing the first coil;
a circuit board disposed on the base and comprising a second coil facing the magnet;
an upper elastic member connecting the housing and the bobbin; and
a support member electrically connecting the upper elastic member and the circuit board,
wherein the housing comprises an upper surface facing the upper elastic member,
wherein the upper surface of the housing comprises a first surface, a second surface disposed lower than the first surface, and a third surface disposed lower than the second surface,
wherein a portion of the upper elastic member is disposed on the first surface of the housing,
wherein the housing comprises a hole formed on the third surface, and
wherein the support member passes through the hole of the housing.

7. The lens driving device of claim 6 , wherein the housing comprises a first protrusion protruding from the first surface of the housing, and
wherein the upper elastic member comprises a hole coupled to the first protrusion of the housing.

8. The lens driving device of claim 6 , wherein each of the second and third surfaces of the housing faces a lower surface of the upper elastic member.

9. The lens driving device of claim 6 , wherein each of the second and third surfaces of the housing is overlapped with the upper elastic member in an optical axis direction.

10. The lens driving device of claim 6 , wherein the housing comprises a first groove recessed from the first surface of the housing and comprising the second surface, and a second groove recessed from the second surface of the first groove and comprising the third surface.

11. The lens driving device of claim 10 , wherein each of the first and second grooves is opened toward outside.

12. The lens driving device of claim 6 , wherein the housing comprises a second protrusion more protruding than the upper elastic member from the first surface of the housing, and
wherein the second protrusion comprises a first portion disposed more inward than the support member.

13. The lens driving device of claim 12 , wherein the housing comprises first and second lateral surfaces and a first corner area disposed between the first and second lateral surfaces,
wherein the second protrusion is disposed on the first corner area of the housing, and
wherein a distance between the first portion of the second protrusion and the first lateral surface of the housing is same as a distance between the first portion of the second protrusion and the second lateral surface of the housing.

14. The lens driving device of claim 13 , wherein the support member comprises first and second wires disposed at the first corner area of the housing, and
wherein the second protrusion is disposed between the first and second wires.

15. The lens driving device of claim 6 , wherein the housing comprises a lower surface facing the circuit board,
wherein the lower surface of the housing comprises a fourth surface opposite to the third surface and a fifth surface opposite to the second surface, and
wherein, in an optical axis direction, a thickness between the third surface and the fourth surface is thinner than a thickness between the second surface and the fifth surface.

16. The lens driving device of claim 15 , wherein the fifth surface is disposed lower than the fourth surface.

17. The lens driving device of claim 6 , comprising:
a solder connecting a support member to an upper surface of the upper elastic member.

18. The lens driving device of claim 6 , wherein the upper elastic member and the support member electrically connect the first coil and the circuit board.

19. A camera module comprising:
a lens;
the lens driving device according to claim 1 ; and
an image sensor.

20. An optical apparatus comprising the camera module according to claim 19 .

Assignees

• Lg Innotek Co Ltd

Inventors

• Park Sang Ok
• Yoo Kyoung Ho
• Lee Sung Guk
• Lee Seong Min
• Lee Jun Taek
• Son Byung Wook

Classifications

• H02K2205/00

  Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports · CPC title

• H02K2203/12

  Machines characterised by the bobbins for supporting the windings · CPC title

• H02K2201/18

  Machines moving with multiple degrees of freedom · CPC title

• G03B13/36

  Autofocus systems · CPC title

• G02B27/646

  compensating for small deviations, e.g. due to vibration or shake (movement of one or more optical elements for control of motion blur in cameras, projectors or printers G03B2205/0007; image stabilisation in cameras peculiar to the presence or use of an electronic image sensor H04N23/68) · CPC title