Lens moving apparatus, camera module and optical appliance including the same

Patent metadata

Field	Value
Publication number	US-12339466-B2
Application number	US-202418643515-A
Country	US
Kind code	B2
Filing date	Apr 23, 2024
Priority date	Mar 18, 2015
Publication date	Jun 24, 2025
Grant date	Jun 24, 2025

Abstract

Embodiments provide a lens moving apparatus including a bobbin in which a lens is mounted, a first coil and a magnet configured to electromagnetically interact with each other so as to move the bobbin, a housing configured to accommodate the bobbin therein, an elastic member including an inner frame coupled to the bobbin, an outer frame coupled to the housing, and a frame connection portion configured to connect the inner frame and the outer frame to each other, and a support member connected to the elastic member and configured to support the housing, and the outer frame includes a first coupling portion coupled to the housing, a second coupling portion coupled to the support member, the second coupling portion being spaced apart from the first coupling portion, and a single connection portion configured to connect the first coupling portion and the second coupling portion to each other.

First claim

What is claimed is:

1. A lens moving apparatus comprising:
a housing;
a bobbin disposed in the housing and configured to move in a direction parallel to an optical axis;
an upper elastic member coupled to an upper portion of the housing; and
a supporting member coupled to the upper elastic member and configured to support the housing;
wherein the upper elastic member comprises:
a first coupling portion coupled to the upper portion of the housing;
a second coupling portion coupled to one end of the supporting member; and
a connection portion connecting the first coupling portion and the second coupling portion,

wherein the connection portion comprises a first end coupled to the first coupling portion, a second end coupled to the second coupling portion, and a first curved portion between the first end and the second end, and
wherein the first curved portion is located closer to the second end of the connection portion than it is to the first end of the connection portion.

2. The lens moving apparatus according to claim 1 , wherein the first coupling portion is located closer to the one end of the supporting member than it is to the first curved portion.

3. The lens moving apparatus according to claim 1 , wherein the first coupling portion is located closer to the second coupling portion than it is to the first curved portion.

4. The lens moving apparatus according to claim 1 , wherein the connection portion comprises:
a first portion connecting the first coupling portion and the first curved portion; and
a second portion connecting the first curved portion and the second coupling portion.

5. The lens moving apparatus according to claim 1 , wherein the connection portion comprises a second curved portion.

6. The lens moving apparatus according to claim 5 , wherein the second curved portion is located closer to the second coupling portion than it is to the first curved portion.

7. The lens moving apparatus according to claim 5 , wherein the second curved portion is located between the first curved portion and the first end of the connection portion.

8. The lens moving apparatus according to claim 1 , comprising:
a magnet disposed on the housing; and
a first coil disposed on the bobbin and configured to move the bobbin in the direction parallel to the optical axis by an interaction with the magnet.

9. The lens moving apparatus according to claim 1 , comprising a solder or an adhesive bonding the one end of the supporting member to the second coupling portion.

10. The lens moving apparatus according to claim 1 , wherein the supporting member is a wire, and the wire is disposed at a corner of the housing.

11. The lens moving apparatus according to claim 1 , comprising a lower elastic member coupled to a lower portion of the housing and a lower portion of the bobbin.

12. The lens moving apparatus according to claim 1 , wherein the first coil is wound on an outer circumferential surface of the bobbin in a direction of rotating about the optical axis.

13. The lens moving apparatus according to claim 8 , comprising:
a circuit member disposed under the housing and comprising a second coil facing the magnet; and
a base disposed under the circuit member.

14. The lens moving apparatus according to claim 13 , wherein the second coil is configured to move the housing in a direction perpendicular to the optical axis.

15. The lens moving apparatus according to claim 13 , wherein the housing comprises four side portions and four corner portions,
wherein the magnet comprises four magnet units disposed on the four side portions of the housing, and
wherein the supporting member comprises four wires disposed at four corner portions of the housing.

16. The lens moving apparatus according to claim 15 , wherein the second coil comprises four coil units corresponding to the four magnet units.

17. The lens moving apparatus according to claim 13 , comprising two position sensors spaced apart from each other and configured to sense a displacement of the housing in a direction perpendicular to the optical axis.

18. The lens moving apparatus according to claim 1 , wherein the first coupling portion comprises a first through-hole and the housing comprises an upper support boss coupled to the first through-hole of the first coupling portion.

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

20. A lens moving apparatus comprising:
a housing;
a bobbin disposed in the housing and configured to move in a direction parallel to an optical axis;
an upper elastic member coupled to an upper portion of the housing; and
a supporting member coupled to the upper elastic member and configured to support the housing;
wherein the upper elastic member comprises:
a first coupling portion coupled to the upper portion of the housing;
a second coupling portion coupled to one end of the supporting member; and
a connection portion connecting the first coupling portion and the second coupling portion,

wherein the connection portion comprises:
a first end coupled to the first coupling portion;
a second end coupled to the second coupling portion; and
a first curved portion between the first end and the second end; and

wherein the first coupling portion is closer to the second end of the connection portion than it is to the first curved portion.

Assignees

• Lg Innotek Co Ltd

Inventors

• Park Sang Ok
• Min Sang Jun

Classifications

• H04M1/0264

  for a camera module assembly · CPC title

• H02K33/18

  with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets · CPC title

• G02B7/02

  for lenses {(supports for magnifying lenses G02B25/002)} · CPC title

• H04N23/57

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• G03B2205/0069

  using electromagnetic actuators, e.g. voice coils · CPC title