Lens Moving Apparatus

Patent metadata

Field	Value
Publication number	US-2016109719-A1
Application number	US-201514884412-A
Country	US
Kind code	A1
Filing date	Oct 15, 2015
Priority date	Oct 17, 2014
Publication date	Apr 21, 2016
Grant date	—

Abstract

A lens moving apparatus includes a bobbin on which a first coil is disposed, a first magnet disposed around the bobbin to face the first coil, and a housing, which is disposed to surround at least a portion of the bobbin and has a first magnet mounting seat, which receives the first magnet, wherein the housing is provided with an adhesive inlet, which allows a side portion of the first magnet mounting seat to communicate with an outside surface of the housing.

First claim

What is claimed is:

1 . A lens moving apparatus comprising:
a bobbin on which a first coil is disposed; a first magnet disposed around the bobbin to face the first coil; and a housing, which is disposed to surround at least a portion of the bobbin and has a first magnet mounting seat, which receives the first magnet, wherein the housing is provided with an adhesive inlet, which allows a side portion of the first magnet mounting seat to communicate with an outside surface of the housing.

2 . The lens moving apparatus according to claim 1 , wherein the adhesive inlet is formed in a corner region of a lower portion of the housing and is partially recessed at a lower surface thereof.

3 . The lens moving apparatus according to claim 1 , wherein the first magnet is configured to have a rectangular shape when viewed in a plan view, and the first magnet mounting seat is positioned at a corner of the housing and has a trapezoidal shape to correspond to the shape of the first magnet,
wherein the first magnet seat has a first side surface corresponding to an upper side of a trapezoidal shape thereof and second side surfaces connected to opposite ends of the first side surface.

4 . The lens moving apparatus according to claim 3 , wherein the adhesive inlet is formed in the first side surface.

5 . The lens moving apparatus according to claim 1 , wherein the housing includes a bobbin mounting seat, which is provided over the first magnet mounting seat and in which the bobbin is partially received, and includes a second flow restrictor, which is provided at an area where the bobbin mounting seat meets an inner surface of the housing in a first direction.

6 . The lens moving apparatus according to claim 5 , wherein the second flow restrictor has an inclined surface, which is inclined in the first direction.

7 . The lens moving apparatus according to claim 5 , wherein the second flow restrictor is provided at an area where a lower surface of the bobbin mounting seat meets the inner surface of the housing.

8 . A lens moving apparatus comprising:
a housing for supporting a first magnet; a cover member surrounding the housing; a base disposed so as to be spaced apart from the housing by a predetermined distance; a bobbin on which a first coil is provided so as to be moved in a first direction; a support member disposed on a side surface of the housing so as to support the bobbin and the housing while allowing the bobbin and the housing to be movable in second and/or third directions perpendicular to the first direction; and a second coil disposed under the housing to move the support member in the second and/or third directions, wherein the housing includes a first magnet mounting seat for receiving the first magnet and an adhesive inlet allowing an outer surface of the housing to communicate with a side portion of the first magnet mounting seat.

9 . The lens moving apparatus according to claim 8 , wherein the first magnet includes at least one first flow restrictor, which is provided at an upper surface of the first magnet mounting seat to restrict movement of an adhesive.

10 . The lens moving apparatus according to claim 8 , wherein the bobbin comprises:
a first stopper provided at an upper surface thereof to prevent an inner surface of the cover member from colliding with the bobbin; and a second stopper circumferentially protruding from an outer surface of an upper portion thereof to prevent the bobbin from colliding with the base.

11 . A lens moving apparatus comprising:
a printed circuit board; a cover member accommodating at least a portion of the printed circuit board; and a base, on which the printed circuit board is mounted and which is coupled to the cover member, wherein a first recess is defined by portions of end surfaces of the printed circuit board, the cover member and the base.

12 . The lens moving apparatus according to claim 11 , wherein the printed circuit board includes at least one terminal member which is bent from the printed circuit board, and the first recess is provided at both sides of an upper portion of the terminal member.

13 . The lens moving apparatus according to claim 12 , wherein the terminal member has cutout portions, which are formed in both sides thereof to define a portion of the first recess.

14 . The lens moving apparatus according to claim 13 , wherein the first recess is surrounded by a first surface formed at one end of the terminal member, a second surface formed at one end of the cover member and a third surface formed at one end of the base.

15 . The lens moving apparatus according to claim 11 , wherein the first recess is open at a front side thereof, and is closed by an outer surface of the base.

16 . The lens moving apparatus according to claim 11 , wherein the first recess has a width of 0.1 mm to 0.6 mm, which is measured in a length direction of the printed circuit board.

17 . The lens moving apparatus according to claim 11 , wherein the first recess includes a pair of first recesses, which are spaced apart from each other by a predetermined distance.

18 . The lens moving apparatus according to claim 11 , wherein the base includes a second recess, which is provided at an area of a lower surface thereof where the base is coupled to the cover member or the printed circuit board and to which an adhesive for bonding the base to the cover member or the printed circuit board is applied.

19 . The lens moving apparatus according to claim 18 , wherein the printed circuit board includes at least one terminal member bent therefrom, the base and the terminal member are bonded and coupled to each other, and the second recess is provided at an area at which the base and the terminal member are coupled to each other.

20 . The lens moving apparatus according to claim 18 , wherein the base has a rectangular contour, and the second recess includes a plurality of second recesses provided at respective sides of the rectangular shape.

Assignees

• Lg Innotek Co Ltd

Inventors

• Cho Jae Hong
• Shin Seung Taek
• Yeo In Jae
• Lee Sang Hee
• Han Jin Suk
• Kim Jung Cheol

Classifications

• G02B7/08

  adapted to co-operate with a remote control mechanism · CPC title

• G03B2205/0007

  Movement of one or more optical elements for control of motion blur · CPC title

• G03B2205/0069

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

• G03B5/00

  Adjustment of optical system relative to image or object surface other than for focusing · CPC title

• G03B3/10 Primary

  Power-operated focusing · CPC title