Lens moving apparatus

Patent metadata

Field	Value
Publication number	US-11428950-B2
Application number	US-201916566190-A
Country	US
Kind code	B2
Filing date	Sep 10, 2019
Priority date	Oct 17, 2014
Publication date	Aug 30, 2022
Grant date	Aug 30, 2022

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 housing comprising a magnet mounting seat;
a bobbin disposed in the housing;
a first coil disposed on the bobbin;
a magnet disposed in the magnet mounting seat; and
an adhesive disposed between the magnet and the magnet mounting seat,
wherein the magnet mounting seat is positioned at a corner of the housing, and
wherein a lower surface of the housing is recessed upwards, in a vertical direction parallel to an optical axis of the lens moving apparatus, so as to form an adhesive inlet at a lower portion of a side surface of the magnet mounting seat, the adhesive inlet exposing, in a lateral direction perpendicular to the vertical direction, the magnet mounting seat to an outside of the housing.

2. The lens moving apparatus according to claim 1 , wherein the magnet mounting seat is a recess or a hole.

3. The lens moving apparatus according to claim 1 , wherein the adhesive inlet is disposed at a lower portion of the corner of the housing.

4. The lens moving apparatus according to claim 1 , wherein the magnet mounting seat is a recess comprising an upper surface facing an upper surface of the magnet, a first side surface facing a first side surface of the magnet, a second side surface connected to one side edge of the first side surface of the recess, a third side surface connected to an other side edge of the first side surface of the recess, and an open plane disposed between one side edge of the second side surface not connected to the first side surface and one side edge of the third side surface not connected to the first side surface.

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

6. The lens moving apparatus according to claim 4 , wherein the adhesive inlet is formed in each of the first and second side surfaces of the recess.

7. The lens moving apparatus according to claim 4 , wherein the adhesive inlet is formed in each of the first to third side surfaces of the recess.

8. The lens moving apparatus according to claim 4 , wherein the adhesive is disposed between the first to third side surfaces of the recess and the magnet, and
wherein the adhesive is disposed between the upper surface of the magnet mounting seat and the magnet.

9. A lens moving apparatus comprising:
a cover;
a housing disposed in the cover and comprising a magnet mounting seat;
a bobbin disposed in the housing for mounting a lens barrel;
a first coil disposed on the bobbin;
a magnet disposed in the magnet mounting seat;
an adhesive disposed between the magnet and the magnet mounting seat;
an elastic member coupled to the bobbin and the housing;
a support member disposed on a side surface of the housing and coupled to the elastic member;
a second coil disposed below the housing; and
a base disposed below the second coil,
wherein the magnet mounting seat is positioned at a corner of the housing, and
wherein a lower surface of the housing is recessed upwards, in a vertical direction parallel to an optical axis of the lens moving apparatus, so as to form an adhesive inlet at a lower portion of a side surface of the magnet mounting seat, the adhesive inlet exposing, in a lateral direction perpendicular to the vertical direction, the magnet mounting seat to an outside of the housing.

10. The lens moving apparatus according to claim 9 , comprising a printed circuit board disposed between the second coil and the base.

11. The lens moving apparatus according to claim 10 , wherein the printed circuit board includes at least one terminal member that is bent therefrom.

12. The lens moving apparatus according to claim 11 , wherein a first recess is formed in both sides of an upper portion of the at least one terminal member, and
wherein the first recess is defined by a first surface which is defined by one end if the terminal member, a second surface which is defined by one end of the cover, and a third surface which is defined by one end of the base.

13. The lens moving apparatus according to claim 9 , wherein the housing comprises a first side surface and a second side surface, and
wherein the magnet is disposed on the first side and the support member is disposed on the second side surface.

14. The lens moving apparatus according to claim 9 , wherein the magnet mounting seat is a recess comprising an upper surface facing an upper surface of the magnet, a first side surface facing a first side surface of the magnet, a second side surface connected to one side edge of the first side surface of the recess, a third side surface connected to an other side edge of the first side surface of the recess, and an open plane disposed between one side edge of the second side surface not connected to the first side surface and one side edge of the third side surface not connected to the first side surface;
wherein the housing comprises at least one first flow restrictor formed on the upper surface of the first magnet mounting seat, and
wherein the at least one first flow restriction is formed at an inner position spaced away from the open plane of the first magnet mounting seat.

15. The lens moving apparatus according to claim 9 , wherein the housing comprises:
a bobbin mounting seat provided over the first magnet mounting seat and in which the bobbin is partially received; and
a second flow restrictor provided at an area where the bobbin mounting seat meets an inner surface of the housing in a first direction.

16. The lens moving apparatus according to claim 15 , 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.

17. The lens moving apparatus according to claim 9 , comprising a detection sensor comprising two Hall sensors disposed on the base and configured to detect a movement of the housing.

18. a lens moving apparatus comprising:
a cover;
a housing disposed in the cover and comprising a magnet mounting seat;
a bobbin disposed in the housing for mounting a lens barrel;
a first coil disposed on the bobbin;
a magnet disposed in the magnet mounting seat;
an adhesive disposed between the magnet and the magnet mounting seat;
an elastic member coupled to the bobbin and the housing;
a support member disposed on a side surface of the housing and coupled to the elastic member;
a second coil disposed below the housing;
a base disposed below the second coil; and
a printed circuit board disposed between the second coil and the base and comprising at least one terminal member that is bent to an outer side surface of the base,
wherein the magnet mounting seat comprises four mounting seats positioned at four corners of the housing, and wherein the magnet comprises four magnets, and each of the four magnets is respectively disposed in a corresponding one of the four mounting seats, and
wherein a lower surface of the housing is recessed upwards, in a vertical direction parallel to an optical axis of the lens moving apparatus, so as to form four adhesive inlets at respective lower portions of side surfaces of the four mounting seats, each adhesive inlet exposing, in a lateral direction perpendicular to the vertical direction, the respective mounting seat to an outside of the housing.

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

• G03B3/10 Primary

  Power-operated focusing · CPC title

• G02B7/09 Primary

  adapted for automatic focusing or varying magnification · CPC title

• G02B27/646 Primary

  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

• 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