Camera Module

• US 20180120586A1
• Filed: 12/27/2017
• Published: 05/03/2018
• Est. Priority Date: 12/29/2014
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Kim, Dong Hyun
• Granted Patent: US 10,747,014 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 27/646 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 Class Codes: G02B 7/023 permitting adjustment
• CPC Class Codes: G02B 7/08 adapted to co-operate with a remote control mechanism
• CPC Class Codes: G02B 7/09 adapted for automatic focusing or varying magnification

Abstract

A lens moving apparatus includes a base, a printed circuit board disposed over the base, and mounted on the base, a coil disposed over the printed circuit board, and a lens barrel, which contacts the base at a lower portion of an outer surface thereof, wherein the base, the printed circuit board and the coil include respective holes, wherein the lens moving apparatus includes a blocking member, which is provided along an internal surface of the hole in the base and which protrudes in a first direction so as to prevent the lower portion of the outer surface of the lens barrel from contacting internal surfaces of the holes in the printed circuit board and/or the coil.

Claims

1. A camera module comprising:

a housing;

a bobbin disposed in the housing;

a lens barrel coupled to the bobbin;

a first coil disposed on the bobbin;

a magnet disposed on the housing;

a base disposed below the bobbin and comprising a first hole;

a blocking member upwardly protruding from an upper surface of the base along an inner surface of the first hole of the base;

a printed circuit board disposed on the base and comprising a second hole corresponding to the first hole of the base; and

a circuit member disposed on the printed circuit board and comprising a third hole corresponding to the second hole of the printed circuit board;

wherein the blocking member passes through the second hole and the third hole, and

wherein an upper end of the blocking member is positioned higher than a lower end of the lens barrel in an optical axis direction.

2. The camera module according to claim 1, wherein a portion of the lens barrel is disposed in the hole of the blocking member.

3. The camera module according to claim 1, wherein an inner circumferential surface of the blocking member overlaps at least a portion of an outer circumferential surface of the lens barrel in a direction perpendicular to the optical axis direction.

4. The camera module according to claim 1, wherein a height of the outer circumferential surface of the blocking member is greater than a sum of a thickness of the printed circuit board and a thickness of the circuit member in the optical axis direction.

5. The camera module according to claim 1, wherein the blocking member is disposed between the lens barrel and the circuit member in a direction perpendicular to the optical axis direction.

6. The camera module according to claim 1, wherein an inner circumferential surface of the blocking member is positioned to face a lower portion of an outer circumferential surface of the lens barrel, and

wherein the inner circumferential surface of the blocking member is spaced apart from the lens barrel.

7. The camera module according to claim 1, wherein the blocking member is configured to have an annular shape.

8. The camera module according to claim 1, further comprising:

a first holder below the base;

a filter disposed on the first holder;

a second holder disposed below the first holder; and

an image sensor disposed on the second holder;

wherein the first holder comprises a protrusion protruding from an upper surface of the first holder and the protrusion surrounds at least a portion of the filter.

9. The camera module according to claim 8, wherein an upper end of the protrusion of the first holder is positioned higher than an upper end of the filter in the optical axis direction.

10. The camera module according to claim 8, wherein an inner surface of the protrusion of the first holder faces a side surface of the filter and is spaced apart from the side surface of the filter.

11. The camera module according to claim 8, wherein the filter is configured to have a rectangular shape.

12. The camera module according to claim 8, further comprising:

a first adhesive member disposed between the base and the first holder so as to couple the base to the first holder; and

a second adhesive member disposed between the first holder and the second holder so as to couple the first holder to the second holder,

wherein the second adhesive member comprises an opening.

13. The camera module according to claim 12, wherein the first holder comprises a recess provided on one side surface of the first holder, and the recess of the first holder corresponds to the opening of the second adhesive member.

14. The camera module according to claim 13, wherein a width of the opening of the second adhesive member is smaller than a width of the recess of the first holder.

15. The camera module according to claim 14, further comprising a filler filled in the recess.

16. The camera module according to claim 1, further comprising:

an elastic member coupled to an upper surface of the bobbin and an upper surface of the housing; and

a support member disposed at a corner of the housing and conductively connected to the elastic member;

wherein the printed circuit board comprises a terminal member bent from an upper surface of the printed circuit board, and the terminal member comprises a plurality of terminals.

17. The camera module according to claim 16, wherein the circuit member comprises a second coil facing the magnet, and

wherein the printed circuit board comprises a through hole and one end of the support member is inserted into the through hole, and the printed circuit board is conductively connected to the elastic member.

18. The camera module according to claim 8, further comprising a masking member disposed on the filter and comprising an opening disposed on a position corresponding to the image sensor,

wherein the image sensor comprises an image sensing region having a rectangular shape,

wherein the opening of the masking member comprises a recess horizontally recessed outwardly from a portion corresponding to a corner of the image sensing region of the image sensor, and

wherein the recess of the opening of the masking member is not vertically overlapped with the corner of the image sensing region of the image sensor.

19. A camera module comprising:

a housing;

a bobbin disposed in the housing;

a lens barrel coupled to the bobbin;

a first coil disposed on the bobbin;

a magnet disposed on the housing;

a base disposed below the bobbin and comprising a first hole and a blocking member;

a printed circuit board disposed on the base and comprising a second hole corresponding to the first hole of the base; and

a circuit member disposed on the printed circuit board and comprising a third hole corresponding to the second hole of the printed circuit board;

wherein the blocking member passes through the second hole and the third hole,

wherein the lens barrel comprises a protruding portion protruding from a bottom surface of the bobbin, and

wherein the protruding portion of the lens barrel faces the blocking member in a direction perpendicular to an optical axis direction.

20. A camera module comprising:

a housing;

a bobbin disposed in the housing;

a lens barrel coupled to the bobbin;

a first coil disposed on the bobbin;

a magnet disposed on the housing;

a base disposed below the bobbin;

a blocking member protruding in an optical axis direction from an upper surface of the base and comprising a hole;

a printed circuit board disposed on the base and conductively connected to the first coil; and

a circuit member disposed on the printed circuit board and conductively connected to the printed circuit board;

wherein a portion of the lens barrel is disposed in the hole of the blocking member.