Lens Moving Apparatus

Patent metadata

Field	Value
Publication number	US-2016018667-A1
Application number	US-201514795297-A
Country	US
Kind code	A1
Filing date	Jul 9, 2015
Priority date	Jul 16, 2014
Publication date	Jan 21, 2016
Grant date	—

Abstract

A lens moving apparatus includes a housing supporting a driving magnet, a bobbin provided on an outer surface thereof with a coil disposed in the driving magnet and moving in a first direction in the housing, a base disposed under the bobbin to be spaced apart from the bobbin by a predetermined distance, an upper elastic member disposed above the bobbin and including an inner frame connected to the bobbin and an outer frame coupled to the housing, and a support member coupled at a lower portion thereof to the base and including a projecting portion protruding upward and bent at at least a portion thereof, at least a portion of the bent portion of the projecting portion being coupled to the upper elastic member.

First claim

What is claimed is:

1 . A lens moving apparatus comprising:
a housing supporting a driving magnet; a bobbin provided on an outer surface thereof with a coil disposed in the driving magnet and moving in a first direction in the housing; a base disposed under the bobbin to be spaced apart from the bobbin by a predetermined distance; an upper elastic member disposed above the bobbin and including an inner frame coupled to the bobbin and an outer frame coupled to the housing; and a support member coupled at a lower portion thereof to the base and including a projecting portion protruding upward and bent at at least a portion thereof, at least a portion of the bent portion of the projecting portion being coupled to the upper elastic member.

2 . The lens moving apparatus according to claim 1 , wherein the support member is configured such that a lower surface of the bent portion of the projecting portion faces an upper surface of the upper elastic member, and the upper elastic member is coupled to the bent portion by means of a conductive bonding material.

3 . The lens moving apparatus according to claim 2 , wherein the conductive bonding material is made of solder or conductive adhesive,
wherein the solder forms a solder portion securely enveloping at least a portion of the bent portion and bulging upward from the upper elastic member, and the solder portion is disposed on the upper elastic member and coupled thereto.

4 . The lens moving apparatus according to claim 2 , wherein the support member comprises:
a first coupling portion which includes the projecting portion and is coupled to the upper elastic member; a second coupling portion coupled to the base; a first elastic deformation portion extending from the first coupling portion; and a second elastic deformation portion extending from the second coupling portion.

5 . The lens moving apparatus according to claim 2 , wherein the support member includes a plurality of support members disposed to surround the bobbin, and the projecting portion includes a plurality of projecting portions spaced apart from each other by a predetermined distance in a second direction, which is perpendicular to the first direction.

6 . The lens moving apparatus according to claim 2 , wherein the bent portion is disposed to define an angle of −30° to 30° with respect to the upper surface of the upper elastic member, or has a bending radius of 0 μm to 300 μm.

7 . The lens moving apparatus according to claim 2 , wherein the bent portion has a width of 80 μm to 1000 μm, or a length of 100 μm to 1000 μm.

8 . The lens moving apparatus according to claim 2 , further comprising a lower elastic member disposed under the bobbin and including an inner frame coupled to the bobbin and an outer frame coupled to the housing.

9 . The lens moving apparatus according to claim 4 , wherein the support member further comprises a connecting portion connected between the first elastic deformation portion and the second elastic deformation portion.

10 . The lens moving apparatus according to claim 2 , wherein the projecting portion is formed integrally to the support member, or is separately formed to have the bent portion and is coupled to an upper portion of the support member.

11 . A lens moving apparatus comprising:
a housing supporting a driving magnet; a bobbin provided on an outer surface thereof with a coil disposed in the driving magnet and moving in a first direction in the housing; a base disposed under the bobbin to be spaced apart from the bobbin by a predetermined distance; and a support member disposed at a lateral surface of the housing, the support member being coupled at an upper portion thereof to the housing and coupled at a lower portion thereof to the base, and supporting the bobbin and the housing such that the bobbin and the housing are movable in second and third directions, which are perpendicular to the first direction, wherein a bonding portion is disposed at at least a portion of the support member.

12 . The lens moving apparatus according to claim 11 , wherein the support member comprises:
a first coupling portion coupled to the housing; a second coupling portion coupled to the base; a pair of first elastic deformation portions which extend from the first coupling portion and are symmetrically disposed with respect to each other; a pair of second elastic deformation portions which extend from the second coupling portion and are symmetrically disposed with respect to each other; and a pair of connecting portions, which are connected between the pair of first elastic deformation portions and the pair of second elastic deformation portions.

13 . The lens moving apparatus according to claim 12 , wherein the pair of connecting portions includes a pair of control plates which are coupled to at least a portion of the bonding portion of the support member and are turned in one of the first, second and third directions depending on deformation of the support member,
wherein the pair of control plates are disposed to face each other.

14 . The lens moving apparatus according to claim 13 , wherein the pair of control plates are secured or coupled to each other by the bonding portion,
wherein the bonding portion secures or couples the pair of control plates to each other at at least one portion of upper portions, center portions and lower portions thereof, which are opposite each other.

15 . The lens moving apparatus according to claim 13 , wherein the bonding portion includes a plurality of bonding portions, and each of the plurality of bonding portions secures or couples the pair of control plates and the first coupling portion to one another, or secures or couples the pair of control plates, the first coupling plate and the pair of first elastic deformation portions to one another.

16 . The lens moving apparatus according to claim 13 , wherein the pair of control plates are secured or coupled to each other by the bonding portion in a state of being turned by a predetermined angle in one of the first, second and third directions, and the pair of control plates and the first coupling portion are secured or coupled to one another by the bonding portion.

17 . The lens moving apparatus according to claim 13 , wherein the pair of control plates includes a plurality of through holes and/or recesses formed in at least a portion thereof, and the base includes a mount recess into which the second coupling portion is coupled.

18 . The lens moving apparatus according to claim 13 , further comprising upper and lower elastic members, each of which includes an inner frame coupled to the bobbin and an outer frame coupled to the housing,
wherein the support member is conductively connected to the upper and lower elastic members.

19 . The lens moving apparatus according to claim 11 , wherein the bonding portion is made of a thermosetting material of a ultraviolet-curable material.

20 . The lens moving apparatus according to claim 12 , wherein the support member further comprises a pair of connecting portions, which are connected between the pair of first elastic deformation portions and the pair of second elastic deformation portions and are symmetrically disposed with respect to each other.

Assignees

• Lg Innotek Co Ltd

Inventors

• Yeo In Jae

Classifications

• G02B7/04

  with mechanism for focusing or varying magnification · CPC title

• H01F7/20

  without armatures (cores H01F3/00; coils H01F5/00 {; shaping metal by applying magnetic forces B21D26/14; electromagnets specially adapted for NMR applications G01R33/381}) · 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

• G02B7/08

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