Dual camera module and optical device

Patent metadata

Field	Value
Publication number	US-11582376-B2
Application number	US-202117307545-A
Country	US
Kind code	B2
Filing date	May 4, 2021
Priority date	Jul 13, 2016
Publication date	Feb 14, 2023
Grant date	Feb 14, 2023

Abstract

The present embodiment relates to a dual camera module comprising a first camera module and a second camera module, wherein: a first magnet unit of the first camera module includes a first magnet and a second magnet, both disposed opposite to each other on a side surface of a first housing; a second magnet unit of the second camera module includes a third to a sixth magnet arranged on four respective corners of a second housing; a third magnet unit is disposed on a side surface of the first housing facing the second housing; the third magnet unit is disposed between the first magnet and the second magnet; and the third magnet unit is smaller than the first magnet and is disposed on a virtual line connecting an optical axis of the first camera module and an optical axis of the second camera module.

First claim

The invention claimed is:

1. A camera device comprising:
a first lens driving device comprising a first cover member; and
a second lens driving device comprising a second cover member spaced apart from the first cover member,
wherein the first lens driving device comprises:
a first bobbin disposed in the first cover member;
a first coil disposed on the first bobbin; and
a first magnet member disposed between the first bobbin and the first cover member,
wherein the first cover member comprises a first lateral plate, a second lateral plate opposite to the first lateral plate, and third and fourth lateral plates opposite to each other,
wherein the first magnet member comprises a first magnet disposed between the first bobbin and the first lateral plate, and a second magnet disposed between the first bobbin and the second lateral plate, and
wherein the first magnet and the second magnet are overlapped with the first coil and the second cover member in a direction perpendicular to an optical axis.

2. The camera device of claim 1 , wherein the first magnet member comprises a third magnet disposed between the first bobbin and the third lateral plate, and
wherein a size of the third magnet is different from a size of the first magnet.

3. The camera device of claim 2 , wherein each of the first to third magnets has a flat plate shape, and
wherein the size of the third magnet is greater than the size of the first magnet.

4. The camera device of claim 2 , wherein the first and second magnets are coupled to the first cover member.

5. The camera device of claim 1 , wherein a size of the second cover member is different from a size of the first cover member.

6. The camera device of claim 1 , wherein the second lens driving device comprises a second bobbin disposed in the second cover member, and a second coil and a second magnet member disposed in the second cover member and configured to move the second bobbin of the second lens driving device.

7. The camera device of claim 6 , wherein the second lens driving device comprises a second housing disposed between the second cover member and the second bobbin of the second lens driving device, and
wherein the second magnet member of the second lens driving device is disposed on each of four corners of the second housing of the second lens driving device.

8. The camera device of claim 6 ,
wherein the second magnet member of the second lens driving device comprises four magnets facing the second coil of the second lens driving device, and
wherein a size of at least one of the four magnets of the second lens driving device is different from a size of the first magnet of the first lens driving device.

9. The camera device of claim 1 , wherein a size of the second cover member is greater than a size of the first cover member.

10. The camera device of claim 1 , wherein the first and second magnets are symmetrical based on an optical axis of the first lens driving device.

11. The camera device of claim 1 , wherein the first lens driving device comprises a first housing disposed between the first cover member and the first bobbin, and
wherein the first magnet member is disposed on the first housing.

12. The camera device of claim 1 , comprising an adhesive fixing the first magnet member to the first cover member.

13. The camera device of claim 1 , wherein the first lens driving device comprises a first base coupled with the first cover member, and a first lower elastic member connecting the first bobbin and the first base,
wherein the first lower elastic member comprises two lower elastic members spaced apart from each other, and
wherein the first coil is electrically connected with the two lower elastic members.

14. An optical apparatus, comprising:
a printed circuit board (PCB);
first and second image sensors disposed on the PCB;
the camera device of claim 1 disposed on the PCB;
a first lens coupled to the first lens driving device and disposed at a position corresponding to that of the first image sensor; and
a second lens coupled to the second lens driving device and disposed at a position corresponding to that of the second image sensor.

15. An optical apparatus comprising:
a main body;
the camera device of claim 1 disposed on the main body; and
a display part disposed on the main body and outputting an image photographed by the camera device.

16. A camera device comprising:
a first lens driving device comprising a first cover member; and
a second lens driving device comprising a second cover member spaced apart from the first cover member,
wherein the first lens driving device comprises:
a first bobbin disposed in the first cover member;
a first coil disposed on the first bobbin; and
a first magnet member disposed between the first coil and the first cover member,
wherein the first cover member comprises a first lateral plate overlapped with the second cover member in a direction perpendicular to an optical axis, a second lateral plate opposite to the first lateral plate, and third and fourth lateral plates opposite to each other, and
wherein the first magnet member comprises a first magnet disposed between the first coil and the first lateral plate, and a second magnet disposed between the first coil and the second lateral plate, and
wherein a size of the second cover member is different from a size of the first cover member.

17. The camera device of claim 16 , wherein the first magnet member comprises a third magnet disposed between the first bobbin and the third lateral plate, and
wherein a size of the third magnet is different from a size of the first magnet.

18. The camera device of claim 16 , wherein the second lens driving device comprises a second bobbin disposed in the second cover member, and a second coil and a second magnet member disposed in the second cover member and configured to move the second bobbin of the second lens driving device.

19. The camera device of claim 16 , wherein the size of the second cover member is greater than the size of the first cover member.

20. A camera device comprising:
a first lens driving device comprising a first cover member; and
a second lens driving device comprising a second cover member,
wherein the first cover member comprises a first lateral plate, a second lateral plate opposite to the first lateral plate, a third lateral plate, and a fourth lateral plate opposite to the third lateral plate,
wherein the first lens driving device comprises:
a first bobbin disposed in the first cover member;
a first coil disposed between the first bobbin and the first cover member; and
a first magnet disposed between the first bobbin and the first lateral plate of the first cover member,
a second magnet disposed between the first bobbin and the second lateral plate of the first cover member, and
a third magnet disposed between the first bobbin and the third lateral plate of the first cover member,
wherein the second lens driving device comprises:
a second bobbin disposed in the first cover member;
a second coil disposed between the second bobbin and the second cover member; and
a plurality of magnets disposed between the second bobbin and the second cover member,
wherein a size of the third magnet is different from a size of the first magnet, and
wherein a size of the second cover member is different from a size of the first cover member.

Assignees

• Lg Innotek Co Ltd

Inventors

• Lee Jun Taek
• Min Sang Jun
• Jung Tae Jin

Classifications

• H02K2203/12

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

• G03B2205/0069

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

• G03B17/02

  Bodies · CPC title

• G03B11/041

  Lens caps as separate accessory (accessories in general G03B17/56) · CPC title

• G02B7/105 Primary

  with movable lens means specially adapted for focusing at close distances · CPC title