KR20220021792A - Lens moving apparatus, camera module and optical instrument including the same - Google Patents

Abstract

An embodiment includes: a base; a circuit board disposed on the base; a housing disposed on the base; a bobbin disposed in the housing; a magnet disposed in the housing; a first coil disposed in the bobbin and opposed to the magnet; and a second coil disposed between the circuit board and the base.

Description

A lens driving device, and a camera module and an optical device including the same

The embodiment relates to a lens driving device, and a camera module and an optical device including the same.

Since it is difficult to apply the technology of a voice coil motor (VCM) used in an existing general camera module to a camera module for ultra-small size and low power consumption, research related thereto has been actively conducted.

Demand and production of electronic products such as smartphones and camera-equipped cell phones are increasing. Cameras for mobile phones are on the trend of high resolution and miniaturization, and accordingly, actuators are becoming smaller, larger diameter, and multi-functional. In order to implement a high-resolution mobile phone camera, additional functions such as performance improvement of mobile phone camera, auto focusing, shutter shake improvement, and zoom function are required.

The embodiment provides a lens driving device capable of improving electromagnetic force, reducing magnetic field interference, preventing damage to an OIS coil, and reducing power consumption, and a camera module and optical device including the same .

A lens driving device according to an embodiment includes a base; a circuit board disposed on the base; a housing disposed on the base; a bobbin disposed within the housing; a magnet disposed on the housing; a first coil disposed on the bobbin and facing the magnet; and a second coil disposed between the circuit board and the base.

The second coil may be coupled to a lower surface of the circuit board and may be electrically connected to the circuit board.

The circuit board may include a pad connected to the second coil. A groove in which the second coil is disposed may be formed in an upper surface of the base. The base may include a protrusion on an upper surface, a hollow is formed in the middle of the second coil, and the protrusion of the base may be disposed in the hollow of the second coil. The height of the protrusion may be equal to or lower than the upper end of the second coil.

The second coil may be wound for 40 turns or more. A depth of the groove of the base may be greater than or equal to a length of the second coil in an optical axis direction. A height of the protrusion may be higher than a height of an upper end of the second coil.

The lens driving device may include an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing; and a support member having one end coupled to the upper elastic member and the other end electrically connected to the circuit board. The support member may include a first support member and a second support member disposed at at least one corner of the housing.

The first supporting member and the second supporting member may be the same.

a terminal portion coupled to the base and positioned below a lower surface of the circuit board, wherein the terminal portion includes a body to which the other end of the support member is coupled, and an extension portion extending from the body to be coupled to the circuit board can

The body may include a coupling area, a first hole formed in the coupling area and through which the other end of the support member passes, and at least one second hole formed around the coupling area.

The circuit board may include a pad electrically connected to the extension part of the terminal part. Each of the first and second support members may be a wire made of a conductive material.

The first support member may be a wire made of a conductive material, the second support member may be made of a non-conductive material, and the rigidity of the second support member may be greater than that of the first support member.

The lens driving device may include a sensing magnet disposed on the bobbin; and a first position sensor facing the sensing magnet in the optical axis direction and disposed between the base and the circuit board. In addition, the lens driving device may include a second position sensor facing the magnet in the optical axis direction and disposed between the base and the circuit board. In addition, a groove for arranging the first position sensor may be formed on the upper surface of the base.

The magnet may include a first magnet disposed on a first side of the housing, a second magnet disposed on a second side of the housing, and a third magnet disposed on a third side of the housing, The first coil may include a first coil unit facing the first magnet in a direction perpendicular to the optical axis direction and a second coil unit facing the second magnet in a direction perpendicular to the optical axis direction, The second coil includes a third coil unit facing the first magnet in the optical axis direction, a fourth coil unit facing the second magnet in the optical axis direction, and a fifth coil facing the third magnet in the optical axis direction. It may include a unit, and the lens driving device may include a dummy member disposed on a fourth side of the housing.

A lens driving device according to another embodiment includes a base; a circuit board disposed on the base; a housing disposed on the base; a bobbin disposed within the housing; a first coil and a magnet for moving the bobbin; and a second coil corresponding to the magnet in an optical axis direction, wherein the base includes a first area in which the second coil is disposed, and a bottom surface of the first area is lower than the top surface of the base, At least a portion of the second coil is disposed within the first region.

The circuit board may be disposed on the first area, and a lower surface of the circuit board may be spaced apart from the bottom surface of the first area. The first area may include a protruding area that protrudes higher than the bottom surface of the first area.

The first area may be a recess, and the recess may include an area open in two directions perpendicular to each other.

The lens driving device according to another embodiment may include an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing; and a support member having one end coupled to the upper elastic member and the other end electrically connected to the circuit board.

A lens driving device according to another embodiment includes a base; a housing disposed on the base; a bobbin disposed within the housing; a first coil and a magnet for moving the bobbin; and a second coil corresponding to the magnet in an optical axis direction and having a hollow formed therein, wherein the base includes a first area in which the second coil is disposed, and the first area is disposed in the hollow of the second coil including protrusions.

A lens driving device according to another embodiment includes a base; a housing disposed on the base; a bobbin disposed within the housing; a first coil and a magnet for moving the bobbin; and a second coil corresponding to the magnet in an optical axis direction, wherein the second coil is disposed on the base and coupled to the base, and the number of turns of the second coil may be 40 or more.

A lens driving device according to another embodiment includes a base; a housing disposed on the base; a bobbin disposed within the housing; a first coil and a magnet for moving the bobbin; an upper elastic member coupled to the bobbin and the housing; a second coil disposed on the base to correspond to the magnet in an optical axis direction; and a support member having one end coupled to the upper elastic member, wherein the support member includes a first wire and a second wire disposed at at least one corner of the housing, each of the first and second wires The diameter may be 40 micrometers to 100 micrometers, and the diameter of the first wire and the diameter of the second wire may be the same.

A lens driving device according to another embodiment includes a housing; a bobbin disposed within the housing; an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing; a magnet disposed on the housing; a first coil disposed on the bobbin and facing the magnet; a circuit board disposed under the housing; a support member electrically connecting the circuit board and the upper elastic member; a base disposed under the circuit board; and a second coil facing the magnet in an optical axis direction, wherein the support member includes a first support member and a second support member disposed at at least one corner of the housing, wherein the first support member includes a conductive material of a wire, and the second support member may be made of a non-conductive material.

A rigidity of the second supporting member may be greater than that of the first supporting member.

The second coil may be disposed between the circuit board and an upper surface of the base. The base may include a groove for accommodating the second coil. A protrusion for coupling with the second coil may be formed in the groove of the base.

and a terminal part coupled to the base and positioned below a lower surface of the circuit board and electrically connected to the circuit board, wherein one end of each of the first and second support members is coupled to the upper elastic member, and the The other end of each of the first and second support members may be coupled to the terminal part.

The lens driving device according to another embodiment may include a sensing magnet disposed on the bobbin; a first position sensor facing the sensing magnet in the optical axis direction and disposed between the base and the circuit board; and a second position sensor facing the magnet in the optical axis direction and disposed between the base and the circuit board.

In the embodiment, by disposing the OIS coil between the circuit board and the base, it is possible to prevent damage to the OIS coil and the occurrence of foreign substances due to collision with the housing or magnet.

In the embodiment, by providing an OIS coil in the form of a winding coil, electromagnetic force may be improved.

The embodiment may prevent disconnection of the support member due to an increase in the size of the lens module by arranging two support members at one corner of the housing.

The embodiment may reduce magnetic field interference between magnets included in adjacent lens driving devices when a dual camera module is applied by applying three driving magnets.

The embodiment may reduce power consumption by coupling the lower end of the support member to the terminal disposed on the base.

1 is an exploded perspective view of a lens driving device according to an embodiment.
2 is a perspective view of the lens driving device excluding the cover member.
3A is a view between the separation of the bobbin, the first coil, and the sensing magnet.
3B is a combined perspective view of a bobbin, a first coil, and a sensing magnet.
4A is an exploded perspective view of a housing, first to third magnets, a dummy member, and a yoke;
4B is a combined perspective view of the housing, the first to third magnets, the dummy member, and the yoke.
5A is a perspective view of an upper elastic member;
5B is a perspective view of a lower elastic member;
6 is a view for explaining an electrical connection relationship between the upper elastic member, the coil, and the support member.
7A is an exploded perspective view of a circuit board, a second coil, a first position sensor and a second position sensor, a terminal unit, and a base;
7B is a combined perspective view of a second coil, a first position sensor and a second position sensor, a terminal unit, and a base;
7C is a perspective view viewed from a different direction from that of FIG. 7B.
8 is a bottom view of the second coil and the circuit board.
9A is a cross-sectional view of the lens driving device in the AB direction of FIG. 2 .
Fig. 9B is a cross-sectional view of the lens driving device in the CD direction of Fig. 2;
9C is a cross-sectional view of the lens driving device in the EF direction of FIG. 2 .
Fig. 9D is a cross-sectional view of the lens driving device in the direction GH of Fig. 2 .
10 is a perspective view illustrating first to third magnets, a dummy member, and third to fifth coil units, and a yoke.
11 is a side view of the first magnet, the third coil unit, the third magnet, the fifth coil unit, the yoke, and the dummy member shown in FIG. 10 .
12 is a plan view of the configurations shown in FIG. 10 .
13 is a view for explaining a relationship between a stroke range in a direction perpendicular to an optical axis of an OIS movable unit, a size of a sensing magnet, and an arrangement of a first position sensor according to an exemplary embodiment;
14A illustrates an embodiment of a first terminal of a terminal unit.
14B shows an embodiment of a third terminal of the terminal unit.
15A is a partial perspective view of a lens driving device according to an embodiment.
15B is a combined perspective view of the first terminal and the first support member;
15C is a perspective view of a first terminal, a first support member, and a solder joint.
16A illustrates a first support member according to another exemplary embodiment.
FIG. 16B is a partially enlarged view illustrating coupling of the first support member and the first upper elastic member of FIG. 16A .
16C is a perspective view of a 1-2 support member according to another exemplary embodiment;
16D is a perspective view of a 1-2 support member according to another exemplary embodiment;
17A is a perspective view of a first support member according to another exemplary embodiment;
17B is a perspective view of a first support member according to another exemplary embodiment;
18A is a perspective view of a first support member according to another exemplary embodiment;
18B is a perspective view of a first support member according to another exemplary embodiment;
19 illustrates a first terminal of a terminal unit and a pad of a circuit board according to another exemplary embodiment.
20 illustrates a solder bonding the first terminal and the pad of FIG. 19 .
21A shows the arrangement of the magnet disposed on the housing, the third coil unit of the second coil disposed on the base, and the circuit board.
21B shows a modified example of the projection of the protrusion of FIG. 21A.
Figure 21c shows another modified example of the projection of Figure 21a.
22 shows the coupling between the lower end of the first supporting member and the first terminal by solder.
23A shows displacement and tilt characteristics of the AF movable parts of the first case and the second case.
23B shows the displacement and tilt characteristics of the OIS movable part of the first case and the second case.
24 shows the frequency response characteristics of the first case and the second case.
25 is an exploded perspective view of a camera module according to an embodiment.
26 is a perspective view of a camera module according to another embodiment.
27 is a perspective view of a portable terminal according to an embodiment.
28 is a block diagram of the portable terminal shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical spirit of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and within the scope of the technical spirit of the present invention, one or more of the components may be selected among the embodiments. It can be used by combining or substituted with .

In addition, the terms (including technical and scientific terms) used in the embodiments of the present invention have meanings that can be generally understood by those of ordinary skill in the art to which the present invention belongs, unless specifically defined and described explicitly. may be interpreted, and the meanings of commonly used terms such as predefined terms may be interpreted in consideration of the contextual meaning of the related art.

In addition, the terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention. In this specification, the singular form may also include the plural form unless otherwise specified in the phrase, and when it is described as "at least one (or one or more) of A and (and) B, C", it can be combined with A, B, and C. It may include one or more of all possible combinations.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the component from other components, and are not limited to the essence, order, or order of the component by the term.

And, when it is described that a component is 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also with the component It may also include a case of 'connected', 'coupled' or 'connected' due to another element between the other elements. In addition, when it is described as being formed or disposed on "above (above) or under (below)" of each component, top (above) or under (below) is one as well as when two components are in direct contact with each other. Also includes a case in which another component as described above is formed or disposed between two components. In addition, when expressed as "upper (upper) or lower (lower)", a meaning of not only an upper direction but also a lower direction based on one component may be included.

Hereinafter, the lens driving device may be replaced with a lens driving unit, a VCM (Voice Coil Motor), an actuator, or a lens moving device, and the like, and the term “coil” hereinafter refers to a coil unit. may be replaced with , and the term “elastic member” may be replaced with an elastic unit or a spring.

Also, in the following description, the term “terminal” may be replaced with a pad, an electrode, a conductive layer, or a bonding part.

For convenience of description, the camera module according to the embodiment is described using a Cartesian coordinate system (x, y, z), but may be described using other coordinate systems, and the embodiment is not limited thereto. In each figure, the x-axis and y-axis refer to directions perpendicular to the z-axis, which is the optical axis direction, the z-axis direction, which is the optical axis (OA) direction, is referred to as a 'first direction', and the x-axis direction is referred to as a 'second direction'. and the y-axis direction may be referred to as a 'third direction'.

The lens driving apparatus according to the embodiment may perform an 'auto-focusing function'. Here, the auto-focusing function refers to automatically focusing the image of the subject on the image sensor surface.

In addition, the lens driving apparatus according to the embodiment may perform a 'hand shake correction function'. Here, the hand shake correction function refers to a function that can prevent the outline of a photographed image from being clearly formed due to vibration caused by a user's hand shake during photographing of a still image.

1 is an exploded perspective view of a lens driving device 100 according to an embodiment, FIG. 2 is a perspective view of the lens driving device 100 excluding the cover member 300, and FIG. 3A is a bobbin 110 and a first coil ( 120), a separation between the sensing magnet 180, FIG. 3B is a combined perspective view of the bobbin 110, the first coil 120, and the sensing magnet 180, and FIG. 4A is the housing 140, the first to the third magnets 130-1 to 130-3, the dummy member 11, and the yoke 135 are separated perspective views, and FIG. 4B is the housing 140 and the first to third magnets 130-1. to 130-4), a dummy member 11, and a combined perspective view of the yoke 135, Figure 5a is a perspective view of the upper elastic member 150, Figure 5b is a perspective view of the lower elastic member 160, Figure 6 is a view for explaining the electrical connection relationship of the upper elastic member 150, the coil 120, and the support member 220, Figure 7a is the circuit board 250, the second coil 230, the first position sensor 170 and the second position sensor 240, the terminal part 27, and the base 210 are separated perspective views, and FIG. 7B is the second coil 230, the first position sensor 170 and the second position sensor ( 240), the terminal part 27, and the base 210 are combined perspective views, FIG. 7C is a perspective view viewed from a different direction from FIG. 7B, and FIG. 8 is a bottom view of the second coil 230 and the circuit board 250. , FIG. 9A is a cross-sectional view of the lens driving device 100 in the AB direction of FIG. 2 , FIG. 9B is a cross-sectional view of the lens driving device 100 in the CD direction of FIG. 2 , and FIG. is a cross-sectional view of the lens driving device 100 in FIG. 9D is a cross-sectional view of the lens driving device in the GH direction of FIG. 2 .

1 to 9D , the lens driving device 100 includes a bobbin 110 , a first coil 120 , a magnet 130 , a housing 140 , a circuit board 250 , and a second coil 230 . , and a base 210 .

The lens driving device 100 may further include an elastic member, and the elastic member may include at least one of the upper elastic member 150 and the lower elastic member 160 . Also, the lens driving device 100 may further include a support member 220 .

The lens driving device 100 may further include a dummy member 11 . Also, the lens driving device 100 may further include a yoke 135 .

The lens driving device 100 may further include a terminal unit 27 .

The lens driving apparatus 100 may further include a first position sensor 170 and a sensing magnet 180 for AF feedback driving. The lens driving apparatus 100 may further include a second position sensor 240 for driving an Optical Image Stabilizer (OIS) feedback.

Also, the lens driving device 100 may further include a cover member 300 .

The lens driving device 100 according to the embodiment provides a lens driving device including an OIS function capable of reducing or suppressing magnetic field interference between magnets included in two adjacent lens driving devices mounted on a dual camera module. can do.

In addition, the lens driving apparatus according to the embodiment may balance the electromagnetic force generated in the X-axis direction and the electromagnetic force generated in the Y-axis direction in order to perform the OIS function.

In addition, the lens driving apparatus according to the embodiment reduces the number of OIS magnets and the size of the OIS magnets, thereby reducing the weight of the OIS moving part and reducing current consumption.

Referring to FIGS. 3A and 3B , the bobbin 110 is disposed inside the housing 140 , and an electromagnetic field between the first coil 120 and the first and second magnets 130 - 1 and 130 - 2 is provided. It may be moved in the optical axis OA direction or the first direction (eg, the Z-axis direction) by interaction.

The bobbin 110 may have an opening 25A for mounting the lens module 400 . For example, the lens module 400 may include at least one of at least one lens and a lens barrel.

For example, the opening of the bobbin 110 may be in the form of a through hole passing through the bobbin 110 , and the opening of the bobbin 110 may have a circular shape, an oval shape, or a polygonal shape, but is not limited thereto.

The bobbin 110 may include first side portions 110a1 to 110a4 and second side portions 110b1 to 110b4 spaced apart from each other. Each of the second side portions 110b1 to 110b4 may connect two adjacent first side portions to each other. For example, the first sides 110a1 to 110a4 of the bobbin 110 may be expressed as “sides”, and the second sides 110b1 to 110b4 of the bobbin 110 are “corners” or “corners”. It can also be expressed by replacing ".

Any one of the side portions of the bobbin 110 (eg, the first side portion 110a1) may be provided with a first seating portion 41 for mounting, seating, or disposing the first coil unit 120-1, and , The second seating part 42 for mounting, seating, or disposing the second coil unit 120-2 is provided on any one of the sides of the bobbin 110 (eg, the second side part 110a2). can be

For example, the first seating part 41 and the second seating part 42 may be provided on two side parts 110a1 and 110a2 located opposite to each other among the side parts of the bobbin 110 .

Each of the first seating part 41 and the second seating part 42 may include at least one protrusion protruding from the outer surface of the bobbin 110 , but is not limited thereto. In another embodiment, each of the first and second seating parts may be in the form of a groove recessed from the outer surface of the bobbin 110 .

The first coil unit 120 - 1 may be coupled to the first mounting unit 41 , and the second coil unit 120 - 2 may be coupled to or wound with the second mounting unit 42 .

The bobbin 110 may have a groove 18a or a hole provided in the other one of the sides for mounting or disposition of the sensing magnet 180 (eg, the fourth side 110a4). can For example, the fourth side portion 110a4 of the bobbin 110 may be a side on which the first coil unit 120-1 or the second coil unit 120-2 is not disposed.

A protrusion 116 protruding in a direction perpendicular to the optical axis and disposed on the sensing magnet 180 may be formed on the fourth side portion 119a4 of the bobbin 110 . The groove 18a may be formed in the protrusion 116 . For example, the groove 18a may be formed on the lower surface of the protrusion 116 , but is not limited thereto. In another embodiment, the groove 18a may be formed on at least one of an upper surface or a side surface of the protrusion 116 .

Also, like the protrusion 111 of the bobbin 110 , the protrusion 116 may suppress or prevent the bobbin 110 from rotating in a predetermined range or more about the optical axis.

The bobbin 110 may include protrusions 111 provided at the corner portions 110b1 to 110b4. The protrusion 111 may pass through the optical axis OA and protrude in a direction parallel to a straight line perpendicular to the optical axis direction, but is not limited thereto.

The protrusion 111 of the bobbin 110 corresponds to the groove 145 of the housing 140 , and may be inserted or disposed in the groove 145 of the housing 140 , and the bobbin 110 is constant about the optical axis. It can inhibit or prevent movement or rotation beyond the range.

An escape groove 112a for avoiding spatial interference with the first frame connection part 153 of the upper elastic member 150 may be provided on the upper surface 10A of the bobbin 110 . A second escape groove 112b for avoiding spatial interference with the second frame connection part 163 of the lower elastic member 160 may be provided on the lower surface 10B of the bobbin 110 .

For example, the first and second escape grooves 112a and 112b may be disposed in the corner portions 110b1 to 110b4 of the bobbin 110 , but the present invention is not limited thereto, and side portions and corner portions of the bobbin 110 . It may be formed in at least one of.

The bobbin 110 may include a first stopper 114 protruding from the upper surface 10A. Although not shown in FIG. 3B , the bobbin 110 may include a second stopper protruding from the lower surface 10B.

When the first stopper 114 and the second stopper of the bobbin 110 move in the first direction for the auto-focusing function, even if the bobbin 110 moves beyond a prescribed range due to an external impact, etc., It is possible to prevent the upper surface 10A of the bobbin 110 from directly colliding with the inner side of the upper plate 301 of the cover member 300 , and the lower surface 10B of the bobbin 110 to directly collide with the circuit board 250 . can be prevented from becoming

A first coupling part 113 for coupling and fixing to the upper elastic member 150 may be provided on the upper surface 10A of the bobbin 110 , and the lower elastic member 160 on the lower surface 10B of the bobbin 110 . ) may be provided with a second coupling portion 117 to be coupled and fixed.

For example, in FIGS. 3A and 3B , the first and second coupling parts 113 and 117 of the bobbin 110 may have a protrusion shape, but the present invention is not limited thereto. The second coupling portions may have a groove or planar shape.

In addition, when the first and second coil units 120 - 1 and 120 - 2 are connected or combined with the upper elastic member 150 by a conductive adhesive member such as solder, the first and second coil units 120 are In order to suppress the separation of -1 and 120-2 and guide both ends of the first and second coil units 120-1 and 120-2, the bobbin 110 has two sides positioned opposite to each other. Guide grooves 9A to 9D formed on the upper surfaces of the 110a1 and 110a2 may be provided.

For example, both ends of the first coil unit 120-1 may pass through the guide grooves 9A and 9B to be coupled to the first and third upper elastic members 150-1 and 150-3, for example, Both ends of the second coil unit 120 - 1 may pass through the guide grooves 9C and 9D to be coupled to the second and third upper elastic members 150 - 2 and 150 - 3 .

The bobbin 110 may include at least one first protrusion 43A and at least one second protrusion 43B protruding from the upper surface 10A. The at least one first protrusion 43A is disposed between the first inner frame 151 of the first upper elastic member 150-1 and one end of the first inner frame 151 of the third upper elastic member 150-3. It can be placed in the , and can serve to spatially separate or isolate the two.

The at least one second protrusion 43B has the other end of the first inner frame 151 of the second upper elastic member 150-2 and the first inner frame 151 of the third upper elastic member 150-3. It may be disposed between them, and may serve to spatially separate or isolate the two.

Next, the first coil 120 will be described.

The first coil 120 may be disposed on the bobbin 110 or may be coupled to the bobbin 110 .

The first coil 120 includes a first coil unit 120-1 and a first coil unit disposed on two opposite sides (eg, 110a and 110b) of the side portions 110a1 to 110a4 of the bobbin 110 . It may include two coil units 120 - 2 . Here, the coil unit may be expressed as a “coil unit”, “coil block”, or “coil ring”.

For example, the first coil unit 120 - 1 may be disposed or coupled to the first seating portion 41 of the bobbin 110 , and the second coil unit 120 - 2 may be disposed on or coupled to the second seating portion of the bobbin 110 . It may be disposed or coupled to the portion 42 .

Each of the first coil unit 120 - 1 and the second coil unit 120 - 2 may include at least one of an oval shape, a trans shape, and a closed curve shape. For example, each of the first coil unit 120-1 and the second coil unit 120-2 passes through the center of the opening 25A of the bobbin 110 and is wound around an axis perpendicular to the optical axis OA. It may be in the form of a ring.

For example, each of the first coil unit 120-1 and the second coil unit 120-2 includes a first portion 3a, a second portion 3b disposed below the first portion 3a, and the first portion It may include a connecting portion 3c connecting the (3a) and the second portion 3b to each other, and a closed curve may be formed by the first to third portions 3a, 3b, and 3c.

The third portion 3c includes a first connecting portion 3c1 connecting one end of the first portion 3a and one end of the second portion 3b, and the other end of the first portion 3a and the second portion 3b. It may include a second connecting portion (3c2) for connecting the other end of the.

For example, the first portion 3a may be expressed as a “first straight portion”, the second portion 3b may be expressed as a “second straight portion”, and the third portion 3c may be expressed as a “curved portion” ", the first connecting portion 3c1 may be expressed as a first curved portion, and the second connecting portion 3c2 may be expressed as a second curved portion.

For example, the first coil unit 120 - 1 and the second coil unit 120 - 2 may be connected in series with each other.

For example, the first coil unit 120-1 and the second coil unit 120-2 may be serially connected to each other by the upper elastic member 160, but the present invention is not limited thereto. Both may be connected in series with each other by at least one.

In another embodiment, the first coil unit and the second coil unit may be connected in series to each other by a connecting coil or a connecting unit. For example, one end of the connecting coil may be directly connected to one end of the first coil unit), and the other end of the connecting coil may be connected to one end of the second coil unit.

In another embodiment, the first coil unit 120-1 and the first coil unit 120-2 may be electrically separated or spaced apart from each other, or may be individually driven.

When a driving signal (eg, a driving current) is supplied to the first coil 120 , through electromagnetic interaction between the first coil 120 and the first and second magnets 130-1 and 130-2 An electromagnetic force may be formed, and the bobbin 110 may be moved in the optical axis OA direction by the formed electromagnetic force.

In the initial position of the AF movable part, the bobbin 110 may be moved in an upward or downward direction (eg, in the Z-axis direction), which is referred to as bidirectional driving of the AF movable part. Alternatively, in the initial position of the AF movable part, the bobbin 110 may be moved upwardly, which is referred to as unidirectional driving of the AF movable part.

In the initial position of the AF movable part, the first coil unit 120-1 may face or overlap the first magnet 130-1 in the first horizontal direction 201, but the third magnet 130- 3) does not face or overlap. For example, the first horizontal direction may be a direction perpendicular to the optical axis OA and toward the first coil unit 120 - 1 from the optical axis OA.

In the initial position of the AF movable part, the second coil unit 120 - 2 may face or overlap the second magnet 130 - 2 in the first horizontal direction, but may face or overlap the third magnet 130 - 3 . doesn't happen

The AF movable unit may include a bobbin 110 and components coupled to the bobbin 110 . For example, the AF movable unit may include a bobbin 110 , a first coil 120 , and a sensing magnet 180 . In addition, the AF movable unit may further include a lens module 400 mounted on the bobbin 110 .

And the initial position of the AF movable part is the initial position of the AF movable part in a state in which power is not applied to the first coil 120 or the upper and lower elastic members 150 and 160 are elastically deformed only by the weight of the AF movable part. It may be a position where the AF movable part is placed.

In addition, the initial position of the bobbin 110 is a position where the AF movable part is placed when gravity acts in the direction from the bobbin 110 to the base 210 , or conversely, when gravity acts in the direction from the base 210 to the bobbin 110 . can be

The sensing magnet 180 provides a magnetic field for sensing by the first position sensor 170 .

The sensing magnet 180 may be disposed on the bobbin. For example, the sensing magnet 180 may be disposed on the protrusion 116 of the bobbin 110 . For example, the sensing magnet 180 may be coupled to the protrusion 116 of the bobbin 110 .

For example, at least a portion of the sensing magnet 180 may be disposed in the groove 18a of the protrusion 116 , and may be coupled to the groove 18a by an adhesive or the like. The sensing magnet 180 may be disposed to correspond to or face the first position sensor 170 in the optical axis OA direction.

At least a portion of any one surface (eg, lower surface) of the sensing magnet 180 corresponding to the first position sensor 170 may be exposed outside the groove 18a of the bobbin 110, but is not limited thereto, and other In an embodiment, either side of the sensing magnet 180 facing the first position sensor 170 may not be exposed from the bobbin 110 .

For example, in the sensing magnet 180 disposed on the bobbin 110 , the boundary surface between the N pole and the S pole may be parallel to a direction perpendicular to the optical axis OA. For example, the N pole and the S pole of the sensing magnet 180 may face each other in the optical axis direction, but is not limited thereto.

In another embodiment, the sensing magnet may be disposed such that the N pole and the S pole face each other in a direction perpendicular to the optical axis. For example, in another embodiment, the interface between the N pole and the S pole of the sensing magnet 180 disposed on the bobbin 110 may be parallel to the optical axis OA.

For example, the sensing magnet 180 may be a single-pole magnetizing magnet having one N pole and one S pole, but is not limited thereto. In another embodiment, the sensing magnet 180 may be a bipolar magnet including two N poles and two S poles or a four-pole magnet.

The shape of the sensing magnet 180 may be a cylinder, a cylinder, a semicircular pillar, or a polyhedral shape (eg, a hexahedron), but is not limited thereto.

For example, the sensing magnet 180 may have a cylindrical shape in which the length in the optical axis direction is longer than the length in the direction perpendicular to the optical axis, thereby making insertion or coupling into the hole 116A of the bobbin 110 easy. there is. In another embodiment, the length of the sensing magnet 180 in the optical axis direction may be equal to or smaller than the length in the direction perpendicular to the optical axis.

When the sensing magnet 180 has a cylindrical or cylindrical shape, the magnetic field distribution of the sensing magnet 180 sensed by the first position sensor 170 may be uniform, thereby improving the sensitivity of the first position sensor 170 . can be

For example, the cross-sectional shape of the sensing magnet 180 cut in a direction perpendicular to the optical axis may be a circular shape, an oval shape, or a polygonal shape (eg, a triangle or a square), but is not limited thereto.

In another embodiment, the sensing magnet may be disposed on the circuit board 250 or the base 210 , and the first position sensor may be disposed on the bobbin 110 .

In another embodiment, the first position sensor may be disposed on the bobbin 110 , and the sensing magnet may be disposed on the housing 140 to face the first position sensor in a direction perpendicular to the optical axis.

In another embodiment, the first position sensor may be disposed on the housing 140 , and the sensing magnet may be disposed on the bobbin 110 to face the first position sensor in a direction perpendicular to the optical axis.

4A and 4B , the housing 140 accommodates at least a portion of the bobbin 110 therein, and includes a first magnet 130-1, a second magnet 130-2, and a third magnet 130. -3), and the dummy member 11 is supported.

The housing 140 may be expressed as an 'OIS movable part'. The OIS movable part may be moved together with the AF movable part by OIS driving by the interaction between the first to third magnets 130 - 1 to 130 - 3 and the second coil 230 .

The housing 140 may be disposed inside the cover member 300 , and may be disposed between the cover member 300 and the bobbin 110 .

The outer surface of the housing 140 may be spaced apart from the inner surface of the side plate of the cover member 300 , and by the space between the housing 140 and the cover member 300 , the housing 140 may be moved by OIS driving. can

The housing 140 may be in the shape of a hollow column including an opening or hollow 26A.

For example, the housing 140 may have a polygonal (eg, square, or octagonal) or circular opening 26A.

The housing 140 may include sides and corners. For example, the housing 140 may include a plurality of side portions 141-1 to 141-4 and a plurality of corner portions 142-1 to 142-4.

For example, the housing 140 may include first to fourth side portions 141-1 to 141-4 and first to fourth corner portions 142-1 to 142-4.

The first to fourth side portions 141-1 to 141-4 may be spaced apart from each other. Each of the corner portions 142-1 to 142-4 of the housing 140 may be disposed or positioned between two adjacent side portions, and may connect the side portions 141-1 to 141-4 to each other. .

For example, the corner parts 142-1 to 142-4 may be located at a corner or a corner of the housing 140 . For example, the number of side portions of the housing 140 is four, and the number of corner portions is four, but is not limited thereto.

Each of the side portions 141-1 to 141-4 of the housing 140 may be disposed parallel to a corresponding one of the side plates 302 of the cover member 300 .

The horizontal length of each of the side portions 141-1 to 141-4 of the housing 140 may be greater than the horizontal length of each of the corner portions 142-1 to 142-4, but is not limited thereto. .

The first side portion 141 - 2 and the second side portion 141 - 2 of the housing 140 may be positioned opposite to each other, and the third side portion 141-3 and the fourth side portion 141-4 are connected to each other. It can be located on the opposite side. Each of the third side portion 141-3 and the fourth side portion 141-4 of the housing 140 may be positioned between the first side portion 141-2 and the second side portion 141-2.

In order to prevent a direct collision with the inner surface of the upper plate 301 of the cover member 300 , a stopper 144 may be provided on the upper portion, the upper end, or the upper surface of the housing 140 .

For example, the stopper 144 may be disposed or arranged on at least one of a side portion and a corner portion of the housing 140 .

In addition, a guide protrusion 146 for guiding a damper applied to the support member 220 may be provided on the upper portion, upper end, or upper surface of the corner portions 142-1 to 142-4 of the housing 140 .

At least one first coupling part 143 coupled to the first outer frame 152 of the upper elastic member 150 may be provided on the upper part, the upper end, or the upper surface of the housing 140 . In addition, at least one second coupling part 148 coupled to and fixed to the second outer frame 162 of the lower elastic member 160 may be provided on a lower portion, a lower end, or a lower surface of the housing 140 .

Each of the first coupling part 143 and the second coupling part 148 of the housing 140 may be a protrusion, but is not limited thereto, and in another embodiment, it may be a groove or a flat surface.

The first coupling portion 143 of the housing 140 and the hole 152a of the first outer frame 152 of the upper elastic member 150 may be coupled using heat sealing or an adhesive, and The second coupling part 148 and the hole 162a of the second outer frame 162 of the lower elastic member 160 may be coupled to each other.

The housing 140 is provided on any one (eg, the first side portion 141-1) of any two side portions positioned opposite to each other and a first seating portion 141a for arranging the first magnet 130-1. ), and a second seating part 141b provided on the other one 141-2 of the two side parts and on which the second magnet 130-2 is disposed.

In addition, the housing 140 is provided on any one of the other two sides positioned opposite to each other (eg, the third side portion 141-3), and a third seating for placing the third magnet 130-3 It may include a portion 141c, and a fourth seating portion 141d provided on the other one 141-4 of the other two side portions and for arranging the dummy member 11 .

Each of the first to third seating parts 141a to 141c of the housing 140 may be provided on an inner surface of any one of the side parts of the housing 140 , but the present invention is not limited thereto. It may be provided on the outer surface.

Each of the first to third seating parts 141a to 141c of the housing 140 corresponds to a corresponding one of the first to third magnets 130-1 to 130-3, or a groove having a shape that matches the corresponding one. , for example, may be formed as a groove, but is not limited thereto.

For example, the first seating portion 141a (or the second seating portion 141b) of the housing 140 may have a first opening facing the first coil unit 120-1, and the first magnet ( 130-1), or a second opening exposing the lower end may be formed.

For example, the second seating part 141b of the housing 140 may have a first opening facing the second coil unit 120 - 2 , and a lower or lower end of the second magnet 130 - 2 . A second opening exposing may be formed.

Also, for example, the third seating part 141b of the housing 140 has a first opening that opens to the outer surface of the bobbin 110 , and a second opening that exposes the lower or lower end of the third magnet 130 - 3 . can be formed. In another embodiment, each of the first to third seating parts of the housing 140 may include at least one of a first opening and a second opening.

The fourth seating portion 141d of the housing 140 may include at least one seating portion for mounting the dummy member 11 . For example, the fourth seating part 141d may include three seating parts. For example, the 4-1 th seating portion 14A may be provided on the fourth side portion 141-4 of the housing 140 , and the 4-2 th and 4-3 seating portions 14B and 14C are It may be provided under the fourth side portion 141-3 of the housing 140 and may be located under the 4-1 seat portion 14A.

For example, one side of the magnets 130-1, 130-2, 130-3 fixed to or disposed on the seating parts 141a, 141b, and 141c of the housing 140 is the seating part 141a, 141b, 141c. It may be exposed through the first opening. In addition, the lower surface of the magnets 130-1, 130-2, 130-3 fixed or disposed on the seating portions 141a, 141b, and 141c of the housing 140 is a second opening of the seating portions 141a, 141b, 141c. can be exposed through

For example, a lower or lower surface of each of the first to third magnets may protrude from the lower surface of the housing 140 toward the circuit board 250 .

At least a portion (eg, one side of the first dummy member 11A) of the derby member 1 fixed or disposed on the seating portion 141d of the housing 140 may be exposed to the inner surface of the housing 140 . there is.

At least another part of the derby member 11 fixed or disposed on the seating portion 141d of the housing 140 (eg, the lower surfaces of the second dummy members 11B and 11C) may be exposed from the lower surface of the housing 140 . can

For example, a lower or lower surface of each of the second and third dummy members 11B and 11C may protrude from the lower surface of the housing 140 toward the circuit board 250 .

For example, the first to third magnets 130 - 1 to 130 - 3 and the dummy member 11 may be fixed to the seating portions 141a to 141d by an adhesive.

Support members 220-1 to 220-4 may be disposed at the corner parts 142-1 to 142-4 of the housing 140, and the corner parts 142-1 to 142-4 of the housing 140. A hole 147 through which the support members 220-1 to 220-4 pass may be provided.

For example, the housing 140 may include a hole 147 penetrating the upper portions of the corner portions 142-1 to 142-4.

At least one support member 220 - 1 to 220 - 4 may be disposed in at least one of the corner portions 142-1 to 142-4 of the housing 140 . For example, two support members 20A and 20B may be disposed in each corner portion 142-1 to 142-4 of the housing 140 , and two holes 147a in each corner portion of the housing 140 . , 147b) may be formed.

The hole 147 may be a through hole penetrating the housing 140 in the optical axis direction, but is not limited thereto. One end of the support member 220 may pass through the hole 147 to be connected or bonded to the upper elastic member 150 .

For example, in order to easily apply the damper, the diameter of the hole 147 may be gradually increased in the direction from the upper surface to the lower surface of the housing 140, but is not limited thereto, and in another embodiment, the diameter of the hole 147 is not limited thereto. This may be constant.

In another embodiment, the hole may have a structure that is recessed from the outer surface of the corner portion of the housing 140 , and at least a portion of the hole may be opened to the outer surface of the corner portion. The number of holes 147 in the housing 140 may be the same as the number of support members.

The housing 140 may include at least one stopper 149 protruding from the outer surface of the side portions 141-1 to 141-4, and the at least one stopper 149 may include the housing 140 in the optical axis direction. It is possible to prevent the outer surface of the housing 140 from directly colliding with the cover member 300 when moving in a direction perpendicular to the .

Referring to FIG. 4A , the upper surface 60B of the corner portions 142-1 to 142-4 of the housing 140 has a first surface 61 and a second surface 62 having a step difference from the first surface 61 . ), and a third surface 63 having a step difference from the second surface 62 . For example, the second surface 62 may be lower than the first surface 61 , and the third surface 63 may be lower than the second surface 62 . In addition, the first surface 61 is located closest to the center of the housing 140 , the third surface 63 is located furthest from the center of the housing 140 , and the second surface 62 is the first surface 61 . and the third surface 63 may be located in the middle.

For example, the first surface 61 of the corner portions 142-1 to 142-4 of the housing 140 may be lower than the upper surface 60A of the side portions 141-1 to 141-4 of the housing 140, but , is not limited thereto, and in another embodiment, the former may be the same as or higher than the latter.

The first coupling portion 143 may be formed on the first surface 61 of the corner portions 142-1 to 142-4 of the housing 140, and the hole 147 is formed in the corner portion ( It may be formed on the third surface 63 of 142-1 to 142-4).

Edges of the second surface 62 and the third surface 63 of the corner portions 142-1 to 142-4 of the housing 140 protrude from the second surface 62 and the third surface 63. A guide protrusion 146 may be formed. For example, a damper may be disposed on the second surface 62 and the third surface 63 of the corner portions 142-1 to 142-4 of the housing 140, and the guide protrusion 146 has a damper on the housing ( 140) can play a role in preventing overflow.

A hole 35B for exposing the yoke 135 may be provided in the third side portion 141-3 of the housing 140, but is not limited thereto, and in another embodiment, the hole 35B may be omitted. Also, the yoke 135 may be disposed within the third side portion 141-3 of the housing 140 .

The housing 140 may include a groove 145 formed at a position corresponding to the protrusion 111 of the bobbin 110 . For example, the groove portion 145 may be formed on an inner surface of at least one of the corner portions 142-1 to 142-4 of the housing 140 . An upper portion of the groove portion 145 may be opened, and the groove portion 145 may have an opening on a side facing the outer surface of the corner portion of the bobbin 110 .

The first magnet 130 - 1 , the second magnet 130 - 2 , and the third magnet 130 - 3 may be spaced apart from each other and disposed in the housing 140 . For example, each of the first to third magnets 130 - 1 to 130 - 3 may be disposed between the bobbin 110 and the housing 140 .

The first magnet 130 - 1 , the second magnet 130 - 2 , and the third magnet 130 - 3 may be disposed on the side of the housing 140 .

The first magnet 130 - 1 and the second magnet 130 - 2 are two side portions 141-1 and 141 located opposite to each other among the side portions 141-1 to 141-4 of the housing 140 . -2) can be placed.

For example, the first magnet 130-1 may be disposed on the first side portion 141-1 of the housing 140, and the second magnet 130-2 may face the first side portion 141-1. It may be disposed on the second side portion 141 - 2 of the housing 140 . For example, the third magnet 130 - 3 may be disposed on the third side portion 141-3 of the housing 140 .

Since the first and second coil units 120-1 and 120-2 for AF driving are disposed on two sides of the bobbin 110 facing each other, the bobbin 110 and the third magnet 130- 3) A coil unit for AF driving is not disposed between them. Also, a coil unit for AF driving is not disposed between the bobbin 110 and the dummy member 11 .

In addition, for OIS driving, since the third to fourth coil units 230-1 to 230-4 and the first to third magnets 130-1 to 130-3 correspond to each other, the dummy member 11 is The second coil 230 for driving the OIS is not disposed between the base 210 and the base 210 .

In another embodiment, the first magnet and the second magnet may be disposed at any two corner portions positioned opposite to each other of the housing 140 , and the third magnet may be any two other magnets positioned opposite to each other of the housing 140 . It may be disposed in any one of the corner parts, and the dummy member may be disposed in the other one of the other two corner parts.

Another embodiment may include a magnet installation member. The magnet installation member may be provided separately from the housing 140 , but is not limited thereto, and in another embodiment, may be integrally formed with the housing 140 .

For example, the magnet installation member may be in the form of a frame, the frame may be coupled to the housing 140 , and the magnet 130 may be installed or coupled to the frame.

At the initial position of the AF movable part, the magnet 130 is perpendicular to the optical axis OA, and is disposed in the housing 140 so that at least a portion overlaps with the first coil 120 in a direction parallel to a straight line passing through the optical axis OA. can

Each of the first to third magnets 130-1 to 130-3 may have a polyhedral (eg, hexahedral) shape. For example, the cross-sectional shape of each of the first to third magnets in a direction perpendicular to the optical axis may be a polygon, for example, a triangle, a quadrangle, a pentagon, a rhombus, or a trapezoid, but is not limited thereto.

Each of the first to third magnets 130-1 to 130-3 may be a unipolar magnetizing magnet, but is not limited thereto. In another embodiment, each of the first to third magnets 130-1 to 130-3 may be a positively polarized magnet or a four-pole magnet including two N poles and two S poles.

The sensing magnet 180 in the optical axis OA direction may not overlap the first coil 120 , but is not limited thereto. In another embodiment, the sensing magnet may overlap the first coil in the optical axis direction.

The dummy member 11 may be disposed in the housing 140 to correspond to or face the third magnet 130 - 3 . The dummy member 11 may be replaced with “weight balancing member”, “balancing member”, “weight compensating member” or “weight member”.

For example, the dummy member 11 may be disposed on the fourth side portion 141-4 of the housing 140 .

The dummy member 11 may be a material that is not affected by magnets, or may be made of a non-magnetic material, or may be a non-magnetic material, but is not limited thereto. In another embodiment, the dummy member 11 may be a magnetic material or may include a magnetic material.

The dummy member 11 is for balancing the weight of the three magnets 130 - 1 to 130 - 4 disposed in the housing 140 .

For example, the dummy member 11 may have the same mass as the third magnet unit 130-3, but is not limited thereto, and in another embodiment, within a range that does not cause an error in OIS operation due to weight imbalance. In , the weight of the dummy member 11 may have an error with the weight of the third magnet unit 130 - 3 .

The dummy member 11 may include at least one dummy 11A, 11B, and 11C. For example, the dummy member 11 may include one dummy or two or more dummy.

For example, the dummy member 11 may include a first dummy 11A, a second dummy 11B, and a third dummy 11C spaced apart from each other. In another embodiment, the dummy member may include at least one of the first to third dummy 11A to 11C. For example, in another embodiment, the first dummy 11A may be omitted.

For example, at least a portion of the protrusion 11 of the bobbin may be positioned between the second and third dummy 11B and 11C. Alternatively, for example, at least a portion of the sensing magnet 180 may be positioned between the second and third dummy 11B and 11C.

The second and third dummy 11B and 11C may be positioned under the first dummy 11A.

For example, the second dummy 11B and the third dummy 11C may have a shape symmetrical to each other, and may be symmetrically disposed with respect to the sensing magnet 180 , but is not limited thereto.

The dummy member 11 may overlap the third magnet 130-3 in a direction perpendicular to the optical axis and from the third corner portion 142-3 of the housing 140 toward the fourth corner portion 142-4. there is.

For example, at least a portion of the sensing magnet 180 may overlap the dummy member 11 in the optical axis direction, but is not limited thereto, and in another embodiment, the sensing magnet may not overlap the dummy member in the optical axis direction.

The dummy member 11 may not overlap the second coil 230 in the optical axis direction.

Since the dummy member 11 does not affect the OIS driving, there is no need for a coil unit corresponding to the dummy member.

When the dummy member 11 includes a magnetic material, the magnetic strength of the dummy member 11 may be smaller than that of the third magnet unit 130 - 3 .

For example, the dummy member 11 may include tungsten, and tungsten may account for 95% or more of the total weight, but is not limited thereto. For example, the dummy member 11 may be a tungsten alloy.

The dummy member 11 may have a polyhedron, for example, a rectangular parallelepiped shape, but is not limited thereto, and may be formed in various shapes. For example, the dummy member 11 may include a rounded portion or a curved surface at the side edge.

The housing 140 may include a groove 35A for avoiding spatial interference with the sensing magnet 180 and the protrusion 116 of the bobbin 110 . For example, the groove 35A may be formed on the inner surface of the fourth side portion 141-4 of the housing 140 . Also, the groove 35A may be positioned between the second and third dummy 11B and 11C.

The yoke 135 may be disposed on the housing 140 to be adjacent to the third magnet 130 - 3 . For example, the yoke 135 may be disposed to face one side of the third magnet 130 - 3 .

For example, the yoke 135 may be disposed to face a second surface positioned opposite to the first surface of the third magnet 130 - 3 facing the outer surface of the bobbin 110 . For example, the yoke 135 may be disposed between the third magnet 130 - 3 and the side plate of the cover member 300 .

In another embodiment, the yoke may be disposed to face the first surface of the third magnet 130 - 3 . For example, the yoke may be disposed between the third magnet 130 - 3 and the bobbin 110 .

The yoke 135 may overlap the third magnet 130 - 3 in the second horizontal direction. The second horizontal direction 202 may be perpendicular to the first horizontal direction. For example, the second horizontal direction 202 may be perpendicular to the optical axis and may be a direction from the optical axis OA to the third magnet 130 - 3 .

The yoke 135 may be in contact with the third magnet 130-3, but is not limited thereto, and in another embodiment, at least the housing 140 is disposed between the yoke 135 and the third magnet 130-3. A portion may be disposed, and the yoke 135 may be spaced apart from the third magnet 130 - 3 .

The yoke 135 may include at least one hole 135A. The hole 135A may be a through hole. For example, the yoke 135 may include a plurality of holes spaced apart from each other.

For example, the yoke 135 may include a connection hole 135B for connecting a plurality of holes spaced apart from each other.

The yoke 135 may be coupled to the third magnet 130-3 and/or the housing 140 by means of an adhesive, and the hole 135A and/or the connection hole 135B of the yoke 135 is an adhesive inflow. The adhesive may serve to spread evenly between the yoke 135 and the third magnet 130-3 or between the yoke 135 and the housing 140.

An opening or hole 35B exposing at least a portion of the yoke 135 may be provided in the third side portion 141-3 of the housing 140 . For example, the outer surface of the yoke 135 may be exposed from the outer surface of the third side portion 141-3 of the housing 140, but is not limited thereto. In another embodiment, the yoke 135 is the housing 140 . It may not be exposed to the outer surface of the third side portion 141-3 of the .

The yoke 135 may improve the strength of electromagnetic force due to the interaction between the fifth coil unit 230 - 3 and the third magnet 130 - 3 .

In another embodiment, the yoke may be disposed under the third magnet 130 - 3 . For example, the yoke may be disposed between the third magnet 130 - 3 and the circuit board 250 .

5A and 5B , the elastic member may be coupled to the bobbin 110 and the housing 140 . The elastic member may elastically support the bobbin 110 with respect to the housing 140 . For example, the elastic member may include at least one of the upper elastic member 150 and the lower elastic member 160 .

For example, the upper elastic member 150 may be coupled to the upper portion, upper surface, or upper end of the bobbin 110 and the upper portion, upper surface, or upper end of the housing 140 . For example, the lower elastic member 160 may be coupled to the lower, lower, or lower end of the bobbin 110 and the lower, lower, or lower end of the housing 140 .

The upper elastic member 150 may include a plurality of upper elastic members 150 - 1 to 150 - 3 electrically separated from each other. For example, the plurality of upper elastic members 150-1 to 150-3 may be disposed to be spaced apart from each other.

Although FIG. 5A shows three electrically separated upper elastic members, the number is not limited thereto, and in another embodiment, it may be one or two or more.

At least one of the first to third upper elastic members 150 - 1 to 150 - 3 includes a first inner frame 151 coupled to the bobbin 110 , and a first outer frame 152 coupled to the housing 140 . ) and a first frame connection part 153 connecting the first inner frame 151 and the first outer frame 152 . The elastic member may be expressed by replacing "spring" or "elastic unit", the inner frame may be expressed by replacing "inner part", and the outer frame may be expressed by replacing "outer part".

For example, a hole 151a for coupling with the first coupling part 113 of the bobbin 110 may be provided in the first inner frame 151 of the upper elastic member 150 , but is not limited thereto. For example, the hole 152a of the first inner frame 151 may have at least one cutout for the adhesive to permeate between the first coupling part 113 of the bobbin 110 and the hole 151a.

A hole 152a for coupling with the first coupling part 143 of the housing 140 may be provided in the first outer frame 152 of the upper elastic unit 150 .

The first outer frame 152 includes a first coupling part 71 coupled to the housing 140 , a second coupling part 72 coupled to the support member 220 , and the first coupling part 71 and the second coupling part 71 . It may include a connection part 73 for connecting the coupling part 72 .

The first coupling portion 71 may include at least one coupling region coupled to the housing 140 (eg, the corner portions 142-1 to 142-4). For example, the coupling region of the first coupling part 71 may include at least one hole 152a1 coupled to the first coupling part 143 of the housing 140 .

For example, the coupling region may include one or more holes, and the corner portions 142-1 to 142-4 of the housing 140 may be provided with one or more first coupling portions corresponding thereto. In the embodiment of FIG. 5A , the coupling area of the first coupling part 71 is implemented to include the hole 152a, but is not limited thereto. In another embodiment, the coupling area has various shapes sufficient to couple with the housing 140 . , for example, may be implemented in the form of a groove.

The second coupling part 72 may include a hole 52 through which the support member 220 passes. One end of the support member 220 passing through the hole 52 may be directly coupled to the second coupling part 72 by a conductive adhesive member or solder 901 (see FIG. 15A ), and the second coupling part 72 and the support member 220 may be electrically connected to each other.

For example, the second coupling part 72 is an area where the solder 901 is disposed for coupling with the support member 220 , and may include a hole 52 and an area around the hole 52 .

In an embodiment in which two support members are disposed at one corner of the housing 140 , the first outer frame 151 may include two second coupling parts 72A and 72B. For example, the second coupling portion 72 may include a 2-1 coupling portion 72A coupled to any one of the two supporting members 20A and 20B, and the other of the two supporting members 20A and 20B. It may include a 2-2 coupling portion 72B coupled to one.

The connection part 73 may connect the first coupling part 71 and the second coupling part 72 to each other. For example, the connection part 73 may connect the coupling region of the second coupling part 72 and the first coupling part 71 .

For example, the connection part 73 may include a first connection part 72A connecting the first coupling part 71 and the 2-1 coupling part 72A of the upper elastic member 150 , and the first connection part 72A of the upper elastic member 150 . It may include a second connection part 72B connecting the first coupling part 71 and the 2-2 coupling part 72B.

Each of the first and second connection parts 72A and 72B may include a bent part bent at least once or a curved part bent at least once, but is not limited thereto, and in another embodiment, may have a straight shape.

For example, the first coupling part 71 may contact the upper surfaces of the corner parts 142-1 to 142-4 of the housing 140 , and the corner parts 142-1 to 142-4 of the housing 140 . can be supported by For example, the second coupling part 72 is not supported by the upper surface of the housing 140 , and may be spaced apart from the housing 140 .

In addition, a damper (not shown) may be filled in the empty space between the connection part 73 and the housing 140 to prevent oscillation due to vibration.

For example, the first upper elastic member 150 - 1 may include one first outer frame 152 coupled to any one corner portion (eg, 142 - 4 ) of the housing 140 , and the second upper portion. The elastic member 150 - 2 may include one first outer frame 152 coupled to the other corner portion (eg, 142 - 2 ) of the housing 140 .

The third upper elastic member 150-3 may include two first outer frames coupled to the other two corner portions (eg, 142-1 and 142-3) of the housing 140 .

In FIG. 5A , there is one first outer frame disposed at any one corner of the housing 140 , but the present invention is not limited thereto. In another embodiment, two first outer frames spaced apart from each other may be disposed at any one corner of the housing 140, and each of the two first outer frames includes one first coupling part, one second coupling part, and one connecting part connecting the first coupling part and the second coupling part.

A first bonding part 41 to which one end of the first coil unit 120-1 is coupled may be provided to one end of the first inner frame of the first upper elastic member 150-1.

A second bonding part 42 to which one end of the second coil unit is coupled may be provided to one end of the first inner frame of the second upper elastic member 150 - 2 .

A third bonding part 43 to which the other end of the first coil unit 120-1 is coupled may be provided at one end of the first inner inner frame of the third upper elastic member 150-3, and the third upper elastic member A fourth bonding portion 44 to which the other end of the second coil unit 120 - 2 is coupled may be provided at the other end of the first inner inner frame of the member 150 - 3 . Grooves for guiding one end and the other end of the first coil may be formed in each of the bonding units 41 to 44 .

With respect to the first to fourth bonding units 41 to 44 , the term “bonding unit” may be used interchangeably with terms such as a pad unit, a connection terminal, a solder unit, or an electrode unit.

The first coil unit 120-1 and the second coil unit 120-2 may be connected in series by the first to third upper elastic members 150-1 to 150-3.

The lower elastic member 160 may be formed of one spring or an elastic unit, but is not limited thereto, and in another embodiment may include a plurality of springs or a plurality of elastic units spaced apart from each other.

The lower elastic member 160 is a second inner frame 161 that is coupled or fixed to the lower portion, lower surface, or lower end of the bobbin 110 , and a second outer portion that is coupled or fixed to the lower portion, lower surface, or lower end of the housing 140 . It may include a frame 162 and a second frame connection part 163 connecting the second inner frame 161 and the second outer frame 162 to each other.

Each of the first frame connection part 153 of the upper elastic member 150 and the second frame connection part 163 of the lower elastic member 160 is bent or curved (or curved) at least once to form a pattern of a certain shape. can be formed The bobbin 110 is elastically (or elastically) moved up and/or lowered in the first direction through position change and micro-deformation of the connecting portion 72 and the first and second frame connecting portions 153 and 163 . can be supported

A hole 161a for coupling with the second coupling part 117 of the bobbin 110 may be provided in the second inner frame 161 , and the second coupling of the housing 140 is provided in the second outer frame 162 . A hole 162a for coupling with the part 148 may be provided.

The upper elastic member 150 and the lower elastic member 160 may be formed of a leaf spring, but are not limited thereto, and may be implemented as a coil spring or the like.

In order to absorb and buffer the vibrations of the bobbin 110 , the lens driving device 100 includes a second element disposed between the upper elastic members 150 - 1 to 150 - 3 and the bobbin 110 (or the housing 140 ). 1 It may further include a damper (not shown).

For example, the first damper is disposed between the first frame connection part 153 and the bobbin 110 of each of the upper elastic members 150-1 to 150-3, or the first frame connection part 153 and the bobbin 110. can be coupled to

Also, for example, the lens driving device 100 may further include a second damper (not shown) disposed between the second frame connection part 163 of the lower elastic member 160 and the bobbin 110 (or the housing 140 ). may be

Also, for example, the lens driving device 100 may further include a third damper (not shown) disposed between the support member 220 and the hole 147 of the housing 140 .

Also, for example, the lens driving device 100 may further include a fourth damper (not shown) disposed at the second coupling part 72 and one end of the support member 220 , and the other end of the support member 220 and A fifth damper (not shown) disposed on the terminal 27 may be further included.

Also, for example, in another embodiment, a damper (not shown) may be further disposed between the inner surface of the housing 140 and the outer peripheral surface of the bobbin 110 .

The support member 220 may movably support the housing 140 in a direction perpendicular to the optical axis OA with respect to the base 210 . The support member 220 may electrically connect at least one of the upper or lower elastic members 150 and 160 to the circuit board 250 .

The support member 220 may include a plurality of support members 220 - 1 to 220 - 4 .

For example, the support member 220 may include first to fourth support members 220 - 1 to 220 - 4 corresponding to the corner portions 142-1 to 142 - 4 of the housing 140 .

For example, the support member may be disposed at each corner of the housing 140 .

For example, two support members 20A and 20B may be disposed at each corner of the housing 140 .

For example, the lens driving device 100 may include a total of eight support members, but is not limited thereto. In another embodiment, one support member may be disposed at each of the corners of the housing 140 . In another embodiment, two support members may be disposed on at least one of the corners of the housing 140 , and one support member may be disposed on at least another of the corners of the housing 140 .

In another embodiment, for example, two support members may be disposed at each of the two corner portions of the housing 140 , and one support member may be disposed at each of the two corner portions of the housing 140 .

For example, each of the first to fourth support members 220-1 to 220-4 may be disposed on a corresponding one of the first to fourth corner portions 142-1 to 142-4 of the housing 140. can For example, each of the first to fourth support members 220-1 to 220-4 may include two support members 20A and 20B (or wires) spaced apart from each other.

The first to fourth support members 220 - 1 to 220 - 4 may be connected to or coupled to the upper elastic member 150 .

For example, the first support member 220-1 may be connected or coupled to the first upper elastic member 150-1, and the second support member 220-2 may be connected to the second elastic member 150-2 and It may be connected or coupled, and the third and fourth support members 220 - 3 and 220 - 4 may be connected or coupled to the third elastic member 150 - 3 .

For example, the first support member 220 - 1 may be electrically connected to the first upper elastic member 150 - 1 , and the second support member 220 - 2 is electrically connected to the second elastic member 150 - 2 . may be connected to, and the third and fourth support members 220 - 3 and 220 - 4 may be electrically connected to the third elastic member 150 - 3 .

For example, one end of the first-1-1 support member 20A of the first support member 220-1 is connected to the two second coupling parts of the first outer frame 151 of the first upper elastic member 150-1 ( 72A, 72B) may be coupled to any one (72A). And one end of the 1-2 support member 20B of the first support member 220-1 is two second coupling parts 72A of the first outer frame 151 of the first upper elastic member 150-1. , 72B) may be coupled to the other one (72B).

For example, one end of the first-first support member 20A of the second support member 220-2 is connected to the two second coupling portions of the first outer frame 151 of the second upper elastic member 150-2 ( 72A, 72B) may be coupled to any one (72A). And, one end of the 1-2 support member 20B of the second support member 220-2 is connected to the two second coupling parts ( It may be coupled to the other one 72B of 72A and 72B.

For example, one end of the 1-1 support member 20A of the third support member 220-3 may have two second coupling portions 72A of the 1-1 outer frame of the third upper elastic member 150-3. , 72B) may be coupled to any one (72A). And one end of the first 1-2 support member 20B of the third support member 220-3 is two second coupling portions 72A of the 1-1 outer frame of the third upper elastic member 150-3, 72B) may be coupled to the other one 72B.

For example, one end of the first-first support member 20A of the fourth support member 220-4 has two second coupling portions 72A of the first-second outer frame of the third upper elastic member 150-3. , 72B) may be coupled to any one (72A). And one end of the 1-2 support member 20B of the fourth support member 220-4 is two second coupling parts 72A of the 1-2 outer frame of the third upper elastic member 150-3, 72B) may be coupled to the other one 72B.

In another embodiment, the upper elastic member may include four upper elastic members that are separated or spaced apart, and the support members 220-1 to 220-4 are 2 corresponding to any one of the four upper elastic members. It may be coupled to the coupling units of the dog.

Two of the support members 220 - 1 to 220 - 4 may be electrically connected to the first coil 120 . For example, the two support members 220 - 1 and 220 - 2 may be disposed at two corners adjacent to a side opposite to the side of the housing 140 on which the dummy member 11 is disposed. In another embodiment, the two supporting members electrically connected to the first coil 120 may be disposed at two selected corners among the four corners of the housing 140 . For example, the two support members electrically connected to the first coil 120 may be disposed at two corners adjacent to either side of the housing, or may be disposed at two corners facing each other diagonally of the housing. .

The other end of each of the support members 220-1 to 220-4 may be connected or coupled to a corresponding one of the terminal parts 72 (72A to 72D).

Each of the support members 220-1 to 220-4 may be electrically connected to a corresponding one of the terminal parts 72A to 72D. For example, the support members 220-1 to 220-4 may electrically connect the upper elastic members 150-1 to 1540-3 and the terminal parts 27A to 27D.

For example, the first support member 220-1 may electrically connect the first upper elastic member 150-1 and the first terminal part 27A, and the second support member 220-1 may have a second upper elastic member 220-1. The member 150-2 and the second terminal part 27B may be electrically connected, and the third support member 220-3 electrically connects the third upper elastic member 150-3 and the third terminal part 27C. may be connected, and the fourth support member 220-4 may electrically connect the third elastic member 150-3 and the fourth terminal part 27D.

In an embodiment in which the upper elastic member includes four separate or spaced upper elastic members, each of the first to fourth support members 220-1 to 220-4 is a corresponding one of the four upper elastic members and a corresponding one of the first to fourth terminal parts 27A to 27D may be electrically connected.

The first to fourth support members 220 - 1 to 220 - 4 may be spaced apart from the housing 140 and are not fixed to the housing 140 , but instead of the first to fourth support members through soldering or the like. (220-1 to 220-4) One end of each may be directly connected or coupled to the second coupling portion 72 of the first to third upper elastic members 150-1 to 150-4.

In another embodiment, the terminal part 27 may be omitted, and the other end of each of the first to fourth support members 220 - 1 to 220 - 4 may be directly connected or coupled to the circuit board 250 . For example, the other end of each of the first to fourth support members 220 - 1 to 220 - 4 may be directly connected or coupled to the lower surface of the circuit board 250 .

In another embodiment, the other end of each of the support members 220-1 to 220-4 may be coupled to the base 210, and the other end of the support members 220-1 to 220-4 has the base 210 on the base 210. A wiring or circuit pattern electrically connecting the terminal and the circuit board 250 may be formed.

The first coil 120 may be electrically connected to the circuit board 250 through the upper elastic member 150 and the terminal part 27 .

For example, the first coil unit 120-1 and the second coil unit 120-2 may be connected in series to each other through the first to third upper elastic members 150-1 to 150-3.

One end of the first coil unit 120-1 connected in series with each other may be connected to the first support member 220-1, and the circuit board ( It may be electrically connected to the first pad Q1 of the 250 . In addition, the other end of the first coil unit 120-1 connected in series may be connected to the second support member 220-2, and the circuit board may be connected through the second support member 220-2 and the second terminal part 27B. It may be electrically connected to the second pad Q2 of the 250 .

For example, one driving signal may be provided to the first coil unit 120 - 1 and the second coil unit 120 - 2 through the first and second pads Q1 and Q2 of the circuit board 250 . there is.

In an embodiment in which the first and second coil units are directly connected to each other, one end of the first coil unit may be connected or coupled to the first support member 220-1, and the circuit board ( It may be electrically connected to the first pad Q1 of the 250 . Also, one end of the second coil unit may be connected or coupled to the second support member 220-1, and may be electrically connected to the second pad Q2 of the circuit board 250 through the second terminal part 27B. there is.

In another embodiment in which the first coil unit and the second coil unit are electrically separated from each other, the first coil unit may be electrically connected to two of the four upper elastic members that are separated from each other, and the two support members and Two corresponding terminals may be electrically connected to two pads of the circuit board 250 , and a first driving signal for driving the first coil unit may be provided to the two pads. In addition, the second coil unit may be electrically connected to the other two of the four upper elastic members that are separated from each other, and the other two of the circuit board 250 through the other two support members and the other two terminal parts corresponding thereto. It may be electrically connected to the pads, and a second driving signal for driving the second coil unit may be provided to the other two pads.

The support member 220 may be implemented as a member that can be supported by elasticity, for example, a suspension wire, a leaf spring, or a coil spring. The support member 220 may be formed of a conductive material. For example, the support member 220 may be formed of a metal.

Also, in another embodiment, the support member 220 may be integrally formed with the upper elastic member 150 .

7A to 7C , the circuit board 250 is disposed under the housing 140 and/or the bobbin 110 . Alternatively, for example, the circuit board 250 may be disposed under the lower elastic member 160 .

The circuit board 250 may be disposed on the upper surface of the base 210 .

For example, the circuit board 250 may include a body 252 disposed on the upper surface of the base 210 , and an opening 24A formed in the body 252 .

The opening 24A of the circuit board 250 corresponds to or opposes at least one of the opening 25A of the bobbin 110 , the opening 26A of the housing 140 , or/and the opening 28A of the base 210 . can do.

When viewed from above, the shape of the body 252 of the circuit board 250 may match or correspond to the upper surface of the base 210, for example, a rectangular shape, but is not limited thereto.

The circuit board 250 may include a terminal part 253 extending from the body 252 . The terminal part 253 may be bent from the body 252 to the side surface of the base 210 to extend.

The terminal unit 253 of the circuit board 250 may include a plurality of terminals 251 for receiving electrical signals from the outside or for outputting electrical signals to the outside.

For example, the circuit board 250 may include two terminal parts disposed on two sides facing each other among sides of the body 252 , but is not limited thereto.

A driving signal may be provided to each of the first coil 120 and the second coil 230 through the plurality of terminals 251 provided on the terminal unit 253 of the circuit board 250 .

For example, the first and second pads Q1 and Q2 of the circuit board 250 may be electrically connected to corresponding any two of the terminals 251 of the circuit board.

Also, a driving signal may be provided to the first position sensor 170 through the terminals 251 of the circuit board 250 , and an output signal of the first position sensor 170 may be received and output. For example, the first position sensor 170 may be electrically connected to corresponding terminals among the terminals 251 of the circuit board 250 .

The circuit board 250 may be provided as an FPCB, but is not limited thereto, and it is also possible to directly form the terminals of the circuit board 250 on the surface of the base 210 using a surface electrode method or the like.

The circuit board 250 may include an escape portion 23 through which the support members 220-1 to 220-4 pass in order to avoid spatial interference with the support members 220-1 to 220-4. . 7a , the escapement 23 may be formed at a corner of the body 252 and may be in the form of a groove, but is not limited thereto. In another embodiment, the escapement 23 may be in the form of a hole or a through hole, and a support member may pass through a hole or a through hole.

In another embodiment, the circuit board 250 may not have an escape part, and the support members 220 - 1 to 220 - 4 are formed by applying solder or the like to a circuit pattern or pad formed on the upper surface of the circuit board 250 . It may be electrically connected through

Referring to FIG. 8 , the circuit board 250 may include first and second pads Q1 and Q2 coupled to or connected to the first and second terminal parts 27A and 27B. For example, the first and second pads Q1 and Q2 may be formed on the lower surface of the body 252 of the circuit board 250 , but the present invention is not limited thereto. may be formed. In this case, the lower surface of the body 252 may be a surface facing the upper surface of the base 210 , and the upper surface of the body 252 may be a surface opposite to the lower surface of the body 252 .

For example, the first pad Q1 may be disposed adjacent to the first escape portion formed at any one corner of the body 252 , and the second pad Q2 may be formed at any one corner of the body 252 . It may be disposed adjacent to the second escape area. In this case, the first escapement may be adjacent to the first support member 220 - 1 , and the second escapement may be adjacent to the second support member 220 - 2 .

The circuit board 250 may include pads P1 to P6 electrically connected to the second coil 230 .

For example, the circuit board 250 includes two pads P1 to P2 electrically connected to the third coil unit 230 - 1 and two pads electrically connected to the fourth coil unit 230 - 2 . ( P3 to P4 ), and two pads P5 to P6 electrically connected to the fifth coil unit 230 - 3 .

Six pads P1 to P6 electrically connected to the second coil 230 may be disposed on the lower surface of the circuit board 250 .

For example, any one of the two pads P1 and P2 may be disposed in the first area of the lower surface of the circuit board 250 positioned inside the third coil unit 230-1, and the two pads The other one of (P1, P2) may be disposed in the second region of the lower surface of the circuit board 250 positioned outside the third coil unit 230-1. This is to facilitate bonding with the coil unit. This may be equally applied to the fourth and fifth coil units.

In another embodiment, both pads may be located inside the coil unit of the second coil 230 . In another embodiment, both pads may be located outside the coil unit of the second coil 230 .

10 shows first to third magnets 130-1 to 130-3, a dummy member 11, and third to fifth coil units 230-1 to 230-3, and a yoke 135. 11 is a first magnet 130-1, a third coil unit 230-1, a third magnet 130-3, and a fifth coil unit 230-3 shown in FIG. , a yoke 135, and a side view of the dummy member 11, and FIG. 12 is a plan view of the components 130-1 to 130-3, 230-1 to 230-3, 11, and 135 shown in FIG. .

10 to 12 , the first magnet 130-1 includes a first magnet part 33A, a second magnet part 33B, and a first magnet part 33A and a second magnet part 33B. It may include a first non-magnetic barrier rib 33C disposed therebetween. Here, the first non-magnetic barrier rib 33C may be expressed by being replaced with a “first barrier rib”.

For example, the first magnet part 33A and the second magnet part 33B may be spaced apart from each other in the optical axis direction, and the first partition wall 33C is disposed between the first magnet part 33A and the second magnet part 33B. can be located in

The first magnet part 33A may include an N pole, an S pole, and a first interface between the N pole and the S pole. The first interface may include a section having little polarity as a portion having substantially no magnetism, and may be a portion naturally generated to form a magnet composed of one N pole and one S pole.

The second magnet portion 33B may include an N pole, an S pole, and a second interface between the N pole and the S pole. The second interface may include a section having little polarity as a portion having substantially no magnetism, and may be a portion naturally generated to form a magnet composed of one N pole and one S pole.

The first partition wall 33C separates or isolates the first magnet part 33A and the second magnet part 33B, and is a part having substantially no magnetism and may be a part having little polarity. For example, the partition wall 33C may be formed of a non-magnetic material or air. The non-magnetic barrier rib may be expressed as a "Neutral Zone", or a "Neutral Zone".

The first partition wall 33C is artificially formed when the first magnet part 33A and the second magnet part 33B are magnetized, and the width of the first partition wall 33C is the first boundary surface and the second boundary surface. It may be larger than each width. Here, the width of the first partition wall 33C may be the length of the first partition wall 33C in a direction from the first magnet part 33A to the second magnet part 33B. Alternatively, the width of the first barrier rib 33C may be the length of the barrier rib 33C in the optical axis direction.

The first magnet part 33A and the second magnet part 33B may be disposed so that polarities opposite to each other face each other in the optical axis direction.

For example, the N pole of the first magnet part 33A and the S pole of the second magnet part 33B may be disposed to face the first coil unit 120-1, but the present invention is not limited thereto, and vice versa. can be

The second magnet 130 - 2 includes a third magnet part 34A1 , a fourth magnet part 34B1 , and a second nonmagnetic partition wall disposed between the third magnet part 34A1 and the fourth magnet part 34B1 . (34C1). Here, the second non-magnetic barrier rib 34C1 may be replaced with "second barrier rib".

The second magnet 130-2 may have the same structure as the first magnet 130-1, and the description of the first magnet 130-1 is applied or analogously applied to the second magnet 130-2. can

The partition walls 33C and 33C1 may extend in a horizontal direction or a direction perpendicular to the optical axis. The first magnet parts 33A and 33A1 , the partition walls 33C and 33C1 , and the second magnet parts 33B and 33B1 may be sequentially disposed in the optical axis direction. For example, the first magnet parts 33A and 33A1 may be disposed on the partition walls 33C and 33C1 , and the second magnet parts 33B and 33B1 may be disposed below the partition walls 33C and 33C1 . For example, in each of the first magnet 130-1 and the second magnet 130-2, an N pole and an S pole of a positive polarization may be disposed in the optical axis direction.

The third magnet 130-3 may be a single-pole magnetizing magnet including one N pole and one S pole. For example, the N pole and the S pole of the third magnet 130-3 may face each other in a direction perpendicular to the optical axis, and the interface between the N pole and the S pole of the third magnet 130-3 is the optical axis OA. can be parallel to In another embodiment, the N pole and the S pole of the third magnet 130 - 3 may face each other in the optical axis direction, and the interface between the N pole and the S pole may be perpendicular to the optical axis.

In another embodiment, the third magnet 130-3 may be a positively-polarized magnet including a fifth magnet part, a sixth magnet part, and a third non-magnetic barrier rib disposed between the fifth magnet part and the sixth magnet part. there is. In this case, the fifth magnet part and the sixth magnet part may be spaced apart from each other in an optical axis direction or a direction perpendicular to the optical axis, and the third non-magnetic barrier rib may be located between the fifth magnet part and the sixth magnet part.

When viewed from above, the first magnet 130-1 may be located inside the area of the third coil unit 230-1, and may overlap the third coil unit 230-1 in the optical axis direction.

When viewed from above, the second magnet 130 - 2 may be located inside the region of the fourth coil unit 230 - 2 and overlap the fourth coil unit 230 - 2 in the optical axis direction.

When viewed from above, the third magnet 130 - 3 may be located inside the region of the fifth coil unit 230 - 3 and overlap the fifth coil unit 230 - 3 in the optical axis direction.

Any one part of the third coil unit 230-1 is a first polar part of the first magnet part 33A of the first magnet 130-1 in the optical axis direction, the non-magnetic partition wall 33C, and the second magnet It may overlap the second polarity portion of the portion 33B at the same time. Here, the first polarity portion may be an N-pole or an S-pole, and the second polarity portion may be an opposite polarity portion of the first polarity.

Any one portion of the fourth coil unit 230 - 2 includes a first polarity portion of the third magnet portion 34A1 of the second magnet 130 - 2 in the optical axis direction, a second nonmagnetic partition wall 34C1 , and a first polarity portion of the second magnet 130 - 2 . 4 It may overlap with the second polarity portion of the magnet portion 34B1 at the same time.

Any one part of the fifth coil unit 230 - 3 may overlap the first polarity part of the third magnet 130 - 3 in the optical axis direction, and any other part of the fifth coil unit 230 - 3 . may overlap the second polarity portion of the third magnet 130 - 3 .

The first magnet 130-1 and the second magnet 130-2 may have the same length, width, and height, but is not limited thereto.

Also, the third coil unit 230 - 1 and the fourth coil unit 230 - 2 may have the same length, width, and height, but is not limited thereto.

The lengths L1 and L2 of each of the first to third magnets 130-1 to 130-3 may be lengths in their respective longitudinal directions, and the length L3 of the dummy member 11 is the dummy member ( 11) may be the length in the longitudinal direction.

In addition, the widths W1 and W2 of each of the first to third magnets 130-1 to 130-3 may be lengths in their respective width directions, and the widths W31 and W32 of the dummy member 11 are It may be the length of the dummy member 11 in the width direction. Here, the width direction may be perpendicular to the length direction, and in each of the components 130 - 1 to 130 - 3 and 11 , the width may be shorter than the length. In addition, the width of each of the components 130 - 1 to 130 - 3 and 135 may be expressed by replacing the "thickness" of each of the components 130 - 1 to 130 - 3 and 135 .

For example, the lengths L1 and L2 of the first to third magnets 130-1 to 130-3 are the first to third magnets 130-1 to 130-3 facing the bobbin 110, respectively. may be the length in the horizontal direction of the first surface of Also, the length L3 of the dummy member 11 may be a length in the horizontal direction of the first surface of the dummy member 11 facing the bobbin 110 .

Also, for example, the first to third magnets 130 - 1 to 130 - 3 , and the widths L1 , L2 , L31 to L33 of the dummy member 11 are each of the components 130 - facing the bobbin 110 . 1 to 130-3, 11) may be the distance from the first surface to the second surface opposite to the first surface.

Also, for example, the heights H1 , H2 , H3 and H4 of each of the first to third magnets 130 - 1 to 130 - 3 and the dummy member 11 may be lengths in the optical axis direction of each configuration. . Alternatively, for example, the heights H1 , H2 , H3 and H4 may be the lengths in the longitudinal direction of the first surfaces of the components 130 - 1 to 130 - 3 and 135 facing the bobbin 110 . Alternatively, for example, the heights H1, H2, H3 and H4 may be the distances from the lower surface to the upper surface of each configuration.

The lengths M1 and M2 of each of the third to fourth coil units 230 - 1 to 230 - 3 are in the longitudinal direction or parallel to the corresponding one of the first to third magnets 130 - 1 . It can be the length in the direction.

In addition, the widths K1 and K2 of each of the third to fourth coil units 230 - 1 to 230 - 3 are in the width direction or parallel to the corresponding one of the first to third magnets 130 - 1 . It may be a length in one direction.

The heights T11 and T12 of each of the third to fourth coil units 230-1 to 230-3 may be lengths in the optical axis direction, and the third to fourth coil units 230-1 to 230- 3) may be the same as each other, but is not limited thereto.

In another embodiment, at least one of the heights of the third to fourth coil units 230-1 to 230-3 may be different from the other heights. For example, the height T11 of the third coil unit 230 - 1 may be the same as the height of the fourth coil unit 230 - 2 , and the height T12 of the fifth coil unit 230 - 3 is the second It may be greater than the height T11 of the 3 coil unit 230-1 (T12>T11).

In another embodiment, the height T12 of the fifth coil unit 230 - 3 may be smaller than the height T11 of the third coil unit 230 - 1 .

The length L1 of the first magnet 130-1 in the longitudinal direction may be smaller than the length M1 of the third coil unit 230-1 in the longitudinal direction (L1<M1).

For example, the ratio (L1:M1) of the length L1 of the first magnet 130-1 in the longitudinal direction to the length M1 of the third coil unit 230-1 in the longitudinal direction is 1:1.02 to 1: can be 3 Alternatively, it may be L1:M1=1:1.02 to 1:1.2.

The length W1 in the width direction of the first magnet 130 - 1 may be smaller than the length K1 in the width direction of the third coil unit 230-1 (W1 < K1).

For example, the ratio (W1:K1) of the length W1 in the width direction of the first magnet 130-1 to the length K1 in the width direction of the third coil unit 230-1 is 1:1.6 to 1: It can be 5.

Alternatively, it may be W1:K1=1:1.6 to 1:2.

Also, the length in the longitudinal direction of the second magnet 130 - 2 may be smaller than the length in the longitudinal direction of the fourth coil unit 230 - 2 . A length in the width direction of the second magnet 130 - 2 may be smaller than a length in the width direction of the fourth coil unit 230 - 2 .

The length L2 in the longitudinal direction of the third magnet 130 - 3 may be smaller than the length M2 in the longitudinal direction of the fifth coil unit 230 - 3 ( L2 < M2 ).

For example, the ratio (L2:M2) of the length L2 in the longitudinal direction of the third magnet 130-3 to the length M2 in the longitudinal direction of the fifth coil unit 230-3 is 1:1.06 to 1: It can be 1:4. Alternatively, it may be L2:M2=1:1.06 to 1:1:2.

The length W2 in the width direction of the third magnet 130 - 3 may be smaller than the length K2 in the width direction of the fifth coil unit 230 - 3 (W2<K2).

For example, the ratio (W2:K2) of the length W2 in the width direction of the third magnet 130 - 3 to the length K2 in the width direction of the fifth coil unit 230 - 3 is 1:1.7 to 1: can be 3

Alternatively, it may be W2:K2=1:1.7 to 1:1.8.

In another embodiment, W2 and K2 may be the same.

For example, the length in the longitudinal direction of the yoke 135 may be smaller than the length L2 in the longitudinal direction of the third magnet 130 - 3 . In another embodiment, the length in the longitudinal direction of the yoke 135 may be the same as or greater than the length in the longitudinal direction of the third magnet 130 .

Also, for example, the length in the width direction of the yoke 135 may be smaller than the length W2 in the width direction of the third magnet 130 - 3 .

Also, for example, the height (or the length in the optical axis direction) of the yoke 135 may be smaller than the height H2 of the third magnet 130 - 3 . In another embodiment, the height (or the length in the optical axis direction) of the yoke 135 may be equal to or greater than the height H2 of the third magnet 130 - 3 .

In another embodiment, at least a portion of the yoke may extend to at least one of a lower surface, an upper surface, or another side surface of the third magnet 130 - 3 .

The length M2 of the fifth coil unit 230 - 3 in the longitudinal direction is the length M1 of the third coil unit 230 - 1 in the longitudinal direction and/or the length of the fourth coil unit 230 - 2 in the longitudinal direction. It can be longer than the length of (M2>M1).

For example, the ratio (M1:M2) of the length M1 in the longitudinal direction of the third coil unit 230-1 to the length M2 in the longitudinal direction of the fifth coil unit 230-3 is 1:1.02 to 1 : can be 1.5. Or, for example, it may be M1:M2=1:1.02 to 1:1.06.

The length L2 in the longitudinal direction of the third magnet 130-3 is greater than the length L1 in the longitudinal direction of the first magnet 130-1 and/or the length in the longitudinal direction of the second magnet 130-2. It can be large (L2>L1).

For example, the ratio of L1 to L2 (L1:L2) may be 1:1.02 to 1:1.5. Or, for example, it may be L1:L2=1:1.02 to 1:1.06.

Since M2>M1 and L2>L1, the first electromagnetic force generated by the fifth coil unit 230-3 and the third magnet 130-3 is generated between the third coil unit 230-1 and the first magnet (230-1). 130-1) and the third electromagnetic force generated by the fourth coil unit 230-2 and the second magnet 130-2, respectively. Due to this, the embodiment may reduce the difference between the sum of the first electromagnetic force in the X-axis direction and the second and third electromagnetic forces in the Y-axis direction, and may improve the reliability of the OIS operation.

In another embodiment, M2=M1 may be. Also, in another embodiment, L2=L1 may be.

In addition, the length K2 of the fifth coil unit 230 - 3 in the width direction is the length K1 of the third coil unit 230 - 1 in the width direction and/or the width of the fourth coil unit 230 - 2 . It can be greater than the length of the direction (K2>K1).

For example, a ratio of K1 to K2 (K1:K2) may be 1:1.1 to 1:1.5. Alternatively, it may be K1:K2=1:1.1 to 1.1.25.

In another embodiment, K2 and K1 may be the same as each other.

The length W2 in the width direction of the third magnet 130 - 3 is greater than the length W1 in the width direction of the first magnet 130 - 1 and/or the length in the width direction of the second magnet 130 - 2 . It can be large (W2>W1).

For example, the ratio of W1 to W2 (W:W2) may be 1:1.15 to 1:1.5. Or, for example, W1:W2=1:1.2 to 1:1.25 may be.

For example, W1 may be a length in a direction perpendicular to the optical axis and one surface of the first magnet 130-1 (or the second magnet 130-2), and W2 is the optical axis and the third magnet 130-3. may be a length in a direction perpendicular to one surface of

Since W2>W1, the embodiment may reduce the difference between the sum of the first electromagnetic force in the X-axis direction and the second and third electromagnetic forces in the Y-axis direction, and may improve the reliability of the OIS operation.

In another embodiment, W1 and W2 may be the same as each other.

The third magnet 130 - 3 may include a portion whose width decreases from the lower surface to the upper surface direction. For example, the third magnet 130 - 3 may include a first portion and a second portion positioned on the first portion, and the width of at least one portion of the second portion may be smaller than the width of the first portion. .

The height H2 of the third magnet 130-3 may be smaller than the height H1 of the first magnet 130-1, and/or the height of the second magnet 130-2 (H2<H1). .

For example, the ratio of H2 to H1 (H2:H1) may be 1:1.5 to 1:2.2. Or, for example, it may be H2:H1=1:1.8 to 1:1.02.

Here, H1 and H2 may be lengths of the magnets 130-1 to 130-3 in the optical axis direction. Alternatively, H1 may be the distance from the lower surface to the upper surface of the first magnet 130-1 (or the second magnet 130-2), and H2 may be the distance from the lower surface to the upper surface of the third magnet 130-3. may be

That is, the length in the optical axis direction of the third magnet 130-3 may be shorter than the length in the optical axis direction of the first magnet 130-1 and/or the length in the optical axis direction of the second magnet 130-2. there is.

For example, the length of the first magnet 130-1 in the optical axis direction may be the same as the length of the second magnet 130-2 in the optical axis direction.

Since H2<H1, the embodiment may reduce the weight of the lens driving device, thereby reducing power consumption for AF driving and/or OIS driving.

In another embodiment, H2=H1 may be present.

The lengths L31 , L32 , and L33 of the dummy member 11 in the longitudinal direction may be smaller than the length L2 of the third magnet 130 - 3 in the longitudinal direction. For example, the length of each of the first to third dummy 11A, 11B, and 11C may be smaller than the length L2 of the third magnet.

A length in the width direction of the dummy member 11 may be smaller than a length W2 in the width direction of the third magnet 130 - 3 (W3<W2). For example, the lengths W31 and W32 in the width direction of each of the first to third dummy 11A, 11B, and 11C may be smaller than the length W2 in the width direction of the third magnet 130 - 3 .

For example, the length L31 in the longitudinal direction of the first dummy 11A may be greater than the lengths L32 and L33 in the longitudinal direction of the second dummy 11B and the third dummy 11C, but is limited thereto. No, in another embodiment, the former may be the same as or smaller than the latter.

The length L32 in the longitudinal direction of the second dummy 11B and the length L33 in the longitudinal direction of the third dummy 11C may be the same, but are not limited thereto, and in other embodiments, they may be different from each other. may be

In addition, the width direction length of the second dummy 11B and the width direction length of the third dummy 11C may be the same, but are not limited thereto, and in other embodiments, they may be different from each other.

Since W31<W2, W32<W2, the embodiment can secure a sufficient space (eg, groove 33A of the housing 140) to avoid spatial interference with the protrusion 116 of the bobbin 110, and the bobbin Spatial interference between the protrusion 116 (or the sensing magnet 180 ) of the 110 and the dummy member 11 may be prevented.

In another embodiment, W31 = W32 = W2.

In addition, the first separation distance in the optical axis direction between the first magnet 130-1 and the third coil unit 230-1, and the optical axis direction between the second magnet 130-2 and the fourth coil unit 230-2. The second separation distance to the pole and the third separation distance in the optical axis direction between the third magnet 130 - 3 and the fifth coil unit 230 - 3 may be the same, but are not limited thereto.

In another embodiment, the third separation distance may be smaller than the first separation distance and/or the second separation distance. And since the third separation distance is smaller than the first separation distance and/or the second separation distance, when the first to third separation distances are all the same, in another embodiment, the electromagnetic force generated in the X-axis direction and the Y-axis The difference in electromagnetic force generated in the direction can be further reduced.

For example, the height H3 of the first dummy 11A may be less than or equal to the height H2 of the third magnet 130-3, but is not limited thereto. In another embodiment, the height H3 of the first dummy 11A may be smaller than the height H2 of the third magnet 130-3.

For example, the height H4 of each of the second and third dummy 11B and 11C may be greater than the height H2 of the third magnet 130 - 3 , but is not limited thereto. In another embodiment, the height H4 of the second and third dummy 11B and 11C may be less than or equal to the height H2 of the third magnet 130-3.

9A to 9C , for example, in the initial position of the bobbin 110 , the height of the lower surface of the first dummy 11A disposed in the housing 140 may be higher than the height of the upper surface of the sensing magnet 180 . . Also, the height of the upper surface of each of the second and third dummy 11B and 11C may be higher than the height of the upper surface of the sensing magnet 180 .

Referring to FIG. 11 , for example, the height of the upper surface of the second and third dummy 11B and 11C may be higher than or equal to the height of the upper surface of the third magnet 130 - 3 , but is not limited thereto. In another embodiment, the height of the top surface of each of the second and third dummy 11B and 11C may be lower than the top surface of the third magnet 130 - 3 .

The height of the lower surface of each of the second and third dummy 11B and 11C may be the same as or higher than the height of the lower surface of the third magnet 130-3, but is not limited thereto. In another embodiment, the height of the lower surface of each of the second and third dummy 11B and 11C may be lower than the height of the lower surface of the third magnet 130 - 3 .

For example, the height of the upper surface of each of the second and third dummy 11B and 11C may be lower than the height of the upper surface of the second magnet 130-2 (or the first magnet 130-1), and the second magnet It may be higher than the height of the lower surface of 130-2 (or the first magnet 130-1).

For example, the height of the lower surface of each of the second and third dummy 11B and 11C may be higher than or equal to the height of the lower surface of the second magnet 130-2 (or the first magnet 130-1), but this In another embodiment, the height of the lower surface of each of the second and third dummy 11B and 11C is higher than the height of the lower surface of the second magnet 130-2 (or the first magnet 130-1). may be low.

In the embodiment, in order to reduce magnetic field interference between magnets included in adjacent lens driving devices in a dual or more camera module, three magnets 130-1 to 130-3 and three OIS coil units corresponding thereto It includes the ones 230-1 to 230-3.

Two magnets 130-1 and 130-2 of the three magnets 130-1 to 130-3 interact with the first and second coil units 120-1 and 120-2. At the same time as performing the AF operation, any one of the OIS operation in the X-axis direction and the Y-axis direction may be performed by interaction with the third and fourth coil units 230 - 1 and 230 - 4 .

Of the three magnets 130-1 to 130-3, the other one of the magnets 130-3 interacts with the fifth coil unit 230-3 in the other one of the X-axis direction and the Y-axis direction. OIS operation can be performed.

Each of the first and second magnets 130-1 and 130-2 is configured as a four-pole magnet, so that the embodiment is a corresponding one of the third and fourth coil units 230-1 and 230-2. It is possible to improve the electromagnetic force of Hanawa, thereby reducing the amount of current consumption required to drive the OIS.

In addition, the electromagnetic force between the third magnet 130 - 3 and the fifth coil unit 230 - 3 can be improved by the yoke 135 , thereby reducing the amount of current consumption required for driving the OIS.

In addition, since the dummy member 11 is disposed on the opposite side of the third magnet 130 - 3 , the embodiment can prevent oscillation due to weight eccentricity during OIS operation.

In general, the first electromagnetic force due to the interaction between one magnet and one coil unit is smaller than the second electromagnetic force due to the interaction between the two magnets and the two coil units, and between the first electromagnetic force and the second electromagnetic force The difference may cause a malfunction of the OIS drive. However, in the embodiment, the difference between the first electromagnetic force and the second electromagnetic force may be reduced by using the yoke 135 , thereby preventing a malfunction of the OIS driving.

In addition, the number of windings of the coil in the fifth coil unit 230-3 (hereinafter “the number of first windings”) is the number of windings of the coil in the third coil unit 230-1 (hereinafter “the number of windings”) or/ and the number of turns of the coil in the fourth coil unit 230 - 2 (hereinafter, “third number of turns”), thereby reducing the difference between the electromagnetic force generated in the X-axis direction and the electromagnetic force generated in the Y-axis direction. can Also, for example, the second number of turns and the third number of turns may be the same.

In another embodiment, the first number of turns and the second number of turns (or the third number of turns) may be the same.

In addition, the length L2 of the third magnet 130-3 in the longitudinal direction is the length L1 of the first magnet 130-1 in the longitudinal direction and/or the length of the second magnet 130-2 in the longitudinal direction. The length M2 in the longitudinal direction of the fifth coil unit 230-3 may be greater than the length M1 in the longitudinal direction of the third coil unit 230-1 and/or the fourth coil unit 230- 2) may be greater than the length in the longitudinal direction. For this reason, the embodiment can reduce the difference between the electromagnetic force generated in the X-axis direction and the electromagnetic force generated in the Y-axis direction.

In another embodiment, the third magnet 130 - 3 and the dummy member 11 may be omitted. In another embodiment, instead of the first coil 120 , a ring-shaped first coil surrounding the outer surface of the bobbin 110 about the optical axis may be provided.

In another embodiment, the third magnet 130 - 3 and the dummy member 11 may be omitted, and the third and third disposed at the positions of the omitted third magnet 130 - 3 and the dummy member 11 . Four magnets may be disposed, and in this case, each of the third and fourth magnets may have the same or similar structure to the first magnet 130 - 1 . In another embodiment, a magnet corresponding to or opposite to the first coil may be disposed in at least one (eg, each corner) of the corners of the housing 140 .

The base 210 is disposed under the circuit board 250 . Also, the base 210 may be disposed under the housing 140 and/or the bobbin 110 .

The base 210 may have an opening 28A corresponding to the opening 25A of the bobbin 110 or/and the opening 26A of the housing 140 , and may have a shape that coincides with or corresponds to the cover member 300 . , for example, may have a rectangular shape.

A support part or a support part 255 may be provided in a region of the base 210 facing the terminal 251 of the circuit board 250 . The support part 255 of the base 210 may support the terminal part 253 of the circuit board 250 on which the terminal 251 is formed.

The base 210 may have a relief 212 formed in a corner or a corner region to avoid spatial interference with the other ends of the support members 220-1 to 220-4. For example, the relief 212 may be in the form of a groove or a groove.

Also, for example, referring to FIGS. 7B and 7C , on the upper surface of the base 210 adjacent to the opening 28A, the bobbin 110 or/and the lens module 400 and the escape skin 218 for avoiding spatial interference. can be formed.

The upper surface 30 of the base 210 has a first step in the optical axis direction with the first surface 30A and the first surface 30A that the body 252 of the circuit board 250 contacts or supports the body 252 . It may include a second surface (30B) having a.

The base 210 may further include a surface 31A (or a first stepped surface, or a first side) connecting the first surface 30A and the second surface 30B. For example, the first stepped surface 31A may be perpendicular to the first surface 30A, but is not limited thereto, and in another embodiment, the first stepped surface 31A may be an inclined surface, and the first surface 30A ) and the interior angle between the first stepped surface 31A may be an obtuse angle or an acute angle. In another embodiment, the first stepped surface 31A may have a stepped shape or a curved or bent shape.

For example, the second surface 30B may be located below the first surface 30A. The second surface 30B may be closer to the lower surface of the base 210 than the first surface 30A.

For example, the second surface 30B may be positioned between the opening 28A of the base 210 and the side of the upper surface 30 of the base 210 .

The base 210 may include a first area in which the second coil 230 is disposed and a second area in which the second coil 230 is not disposed.

For example, the first area of the base 210 may be expressed by replacing "accommodating part" or "accommodating area". For example, the first region of the base 210 may be a recess. In this case, the recess may include regions open in two directions perpendicular to each other.

For example, the first area of the base 210 may include a bottom surface positioned lower than the top surface of the base 210 . Also, the first region of the base 210 may include a protrusion, a protruding region, or a protrusion disposed on the bottom surface.

At least a portion of the second coil 230 may be disposed in the first region of the base 210 . The circuit board 250 may be disposed on the first area of the base 210 , and the lower surface of the circuit board 250 may be spaced apart from the bottom surface of the first area of the base 210 . The first area of the base 210 may include a protrusion, a protrusion area, or a protrusion that protrudes higher than the bottom surface.

For example, the protrusion, the protruding area, or the protrusion of the first area of the base 210 may be disposed in a hollow (or central hole) of the coil units 230 - 1 to 230 - 3 of the second coil 230 .

For example, the base 210 may include seating portions 213A, 213B, and 213C for placing, seating, or inserting the second coil 230 . The seating portions 213A, 213B, and 213C may be formed on the upper surface 30 of the base 210 .

For example, the seating portions 213A, 213B, and 213C may be grooves recessed from the upper surface 30 of the base 210 . The seating portions 213A, 213B, and 213C may be expressed by replacing them with a “groove” or a “seating groove”. For example, the seating portions 213A, 213B, and 213C may include a first opening (or a first open region) that is opened to the upper surface of the base 210 and/or a second opening (or a second opening) that is opened to the outer surface of the base 210 . 2 open areas).

For example, the base 210 may include three mounting portions 213A, 213B, and 213C. For example, the first seating part 213A may be disposed adjacent to a first side of the upper surface 30 of the base 210 , and the second seating part 213B may be disposed on the first side of the upper surface 30 of the base 210 . It may be disposed adjacent to a second side located opposite to the first side, and the third seating part 213C is located on the third side located between the first side and the second side of the upper surface 30 of the base 210 . They may be disposed adjacent to each other.

At least one protrusion 215 - 1 to 215 - 3 for winding or fixing the coil unit of the second coil 230 may be formed on the bottom surface of the seating portions 213A, 213B, and 213C. For example, the protrusions 215 to 215 - 3 may be expressed by replacing them with “protrusions”.

For example, the bottom surface of the seating portions 213A, 213B, and 213C may be the second surface 30B of the upper surface 30 of the base 210 . The coil units 230-1 to 230-3 of the second coil 230 are located on the second surface 30B of the upper surface 30 of the base 210 or the bottom surface of the seating parts 213A, 213B, and 213C. can be placed.

For example, the first protrusion 215 - 1 formed on the first seating part 213A may include two protrusions 215A and 215B spaced apart from each other, and the first protrusion 215 - 1 formed on the second seating part 213B. The second protrusion 215-2 may include one protrusion, and the third protrusion 215-3 formed on the third seating part 213C may include two protrusions 215A and 215B. , but is not limited thereto, and each of the first to third protrusions 215-1, 215-2, and 215-3 may include one or two or more protrusions.

The lengths of the two protrusions in a direction parallel to the side of the upper surface of the base 210 or in the longitudinal direction of the coil unit may be different from each other. For example, the length of the first protrusion 215A may be greater than the length of the second protrusion 215B, but the present invention is not limited thereto, and in another embodiment, both may be the same or the former may be smaller than the latter.

The depth of the seating portions 213A, 213B, and 213C may be greater than the length of the coil units 230 - 1 to 230 - 3 of the second coil 230 in the optical axis direction. This prevents the circuit board to which the coil unit is coupled from being lifted or separated from the upper surface 30 (eg, the first surface 30A) of the base 210, so that the bonding force between the circuit board 250 and the base 210 is increased. weakening can be prevented.

In another embodiment, the depth of the seating portions 213A, 213B, and 213C may be the same as the length of the coil units 230 - 1 to 230 - 3 of the second coil 230 in the optical axis direction.

In another embodiment, the depth of the seating portions 213A, 213B, and 213C may be smaller than the length of the coil units 230 - 1 to 230 - 3 of the second coil 230 in the optical axis direction.

For example, the depth of the seating portions 213A, 213B, and 213C is from the first surface 30A of the upper surface of the base 210 to the bottom surface (or the second surface 30B) of the seating portions 213A, 213B, and 213C. can be the distance of Alternatively, the depth of the seating portions 213A, 213B, and 213C may be the first step difference between the first surface 30A and the second surface 30B.

The base 210 may include a first surface 30A and a third surface 30C having a second step in the optical axis direction. The third surface 30C may be disposed at a corner of the upper surface 30 of the base 210 .

The third surface 30C may be disposed adjacent to the escape portion 212 of the base 210 . For example, the second step may be a distance in the optical axis direction between the first surface 30A and the third surface 30C of the upper surface 30 of the base 210 . For example, the second step may be smaller than the first step, but is not limited thereto. In another embodiment, the second step may be the same as or greater than the first step.

The base 210 may further include a surface 31B (or a second stepped surface or a second side surface) connecting the third surface 30C and the first surface 30A.

For example, the second stepped surface 31B may be perpendicular to the first surface 30A, but is not limited thereto, and in another embodiment, the second stepped surface 31B may be an inclined surface, and the first surface 30A ) and the inner angle between the second stepped surface 31B may be an obtuse angle or an acute angle. In another embodiment, the second stepped surface 31B may have a stepped shape or a curved or bent shape.

The first surface 30A, the second surface 30B, and the third surface 30C may be parallel to each other, but is not limited thereto. In another embodiment, at least one of the first to third surfaces may not be parallel to the other.

The base 210 may include a groove 213C formed adjacent to the fourth side of the upper surface. Also, the base 210 may include at least one protrusion 213D protruding from the bottom of the groove 213C. The groove 213C may be recessed from the first surface 30A of the upper surface 30 of the base 210 . For example, the base 210 may be an injection molded product, and the base 210 adjacent to the fourth side of the base 210 is formed by forming the groove 213C adjacent to the fourth side of the upper surface of the base 210 . ) can be prevented from forming abnormally thick. Like the groove 213C, the protrusion 213D may also serve to uniform the thickness of the base 210 formed by the injection process.

The base 210 may include a seating portion 214C on which the first position sensor is disposed. The seating portion 214C may be a groove recessed from the upper surface 30 (eg, the first surface 30A) of the base 210 . The seating portion 214C may be formed adjacent to the fourth side of the upper surface of the base 210 . For example, the seating portion 214C may be disposed on the upper surface of the base 210 positioned between the opening 28A of the base 210 and the fourth side of the upper surface of the base 210 .

The base 210 may include a step 211 to which an adhesive may be applied when the cover member 300 is adhesively fixed. In this case, the step 211 may be formed on the outer surface of the base 210 , may guide the side plate 302 of the cover member 300 , and face the lower end of the side plate 302 of the cover member 300 . can see.

Also, a seating portion (not shown) in which the filter 610 of the camera module 200 is installed may be formed on the lower surface of the base 210 .

A guide protrusion 217 protruding from the upper surface 30 (eg, the first surface 30A) of the base 210 may be formed at the edge of the upper surface 30 of the base 210 . The guide protrusion 217 guides the body 252 of the circuit board 250 , and supports the side surface of the body 252 to prevent the body 252 from being separated from the base 210 .

The second coil 230 may be disposed under the circuit board 250 . The second coil 230 may be disposed between the circuit board 250 and the base 210 .

For example, the second coil 230 may be disposed between the lower surface of the circuit board 250 and the upper surface 30 (eg, the second surface 30B) of the base 210 .

The second coil 230 corresponds to or opposes the third coil unit 230-1 and the second magnet 130-2 that correspond to or face the first magnet 130-1 disposed in the housing 140, or that is opposite to the first magnet 130-1. It may include a fourth coil unit 230 - 2 and a fifth coil unit 230 - 3 corresponding to or opposite to the third magnet 130 - 3 .

For example, the second coil 230 may include three coil units spaced apart from each other.

For example, the third coil unit 230-1 may face or overlap the first magnet 130-1 in the optical axis direction, and the fourth coil unit 230-2 may have the second magnet 130- in the optical axis direction. 2) may face or overlap, and the fifth coil unit 230 - 3 may face or overlap with the third magnet 130 - 3 in the optical axis direction.

For example, the three magnets 130 - 1 to 130 - 3 may be disposed on three of the four sides of the housing 140 , and the third to fifth coil units 230 - 1 to 230 . -3) may be disposed on three sides or three sides of the base 210 to correspond to or face the magnets 130-1 to 130-3 in the optical axis direction.

In another embodiment, the three magnets may be disposed at three corners of the four corners of the housing 140, and the third to fifth coil units correspond to or face the three magnets in the optical axis direction. 210) may be placed at the three corners.

Each of the third to fifth coil units 230-1 to 230-5 may have a hollow or a closed curve having a central hole, for example, a ring shape, and the central hole may be formed to face the optical axis direction.

Also, for example, each of the third to fifth coil units 230 - 1 to 230 - 3 may be in the form of a winding coil, a coil bundle, a coil body, or a coil block rather than a fine pattern (FP) coil.

The FP coil cannot secure a sufficient number of coil turns due to problems such as resistance during manufacture, and there is a limitation in the number of coil turns. Due to this, the electromagnetic force due to the interaction with the magnet 130 may be reduced or weakened. In a structure in which two support members are disposed at each corner of the housing 140 as in the embodiment, sufficient electromagnetic force is required to overcome the restoring force of the support members, but when an FP coil is used, such a sufficient electromagnetic force cannot be secured.

On the other hand, the winding coil has no restrictions on the number of turns of the coil, and may have 1.5 times or more turns than the number of turns of the FP coil. For example, under the same resistance condition, the winding coil can secure 1.5 times or more turns compared to the FP coil.

For example, the number of turns of each of the third to fifth coil units 230 - 1 to 230 - 3 may be 40 or more. For example, the number of turns of each of the third to fifth coil units 230 - 1 to 230 - 3 may be 40 to 80 . Alternatively, for example, the number of turns of each of the third to fifth coil units 230 - 1 to 230 - 3 may be 45 to 60 . Alternatively, for example, the number of turns of each of the third to fifth coil units 230 - 1 to 230 - 3 may be 45 to 55 .

For example, the number of turns of the fifth coil unit 230 - 3 may be greater than the number of turns of each of the third and fourth coil units 230 - 1 and 230 - 2 . Also, for example, the number of turns of the third coil unit 230 - 1 may be the same as the number of turns of the fourth coil unit 230 - 2 .

Alternatively, for example, the sum of the number of turns of the third coil unit 230 - 1 and the number of turns of the fourth coil unit 230 - 2 may be greater than or equal to the number of turns of the fifth coil unit 230 - 3 . In another embodiment, the sum of the number of turns of the third coil unit 230 - 1 and the number of turns of the fourth coil unit 230 - 2 may be smaller than the number of turns of the fifth coil unit 230 - 3 .

For example, the number of turns of each of the third and fourth coil units 230 - 1 and 230 - 2 may be 40 to 60 , and the number of turns of the fifth coil unit 230 - 3 may be 70 to 90 . .

Alternatively, for example, the number of turns of each of the third and fourth coil units 230-1 and 230-2 may be 48 to 52, and the number of turns of the fifth coil unit 230-3 may be 84 to 88. there is.

Due to this, in the embodiment, the number of turns of the second coil 230 can be sufficiently secured, and sufficient electromagnetic force can be secured to overcome the restoring force of the supporting members 220-1 to 220-4 when the OIS is driven.

Also, for example, a line width of each of the third to fifth coil units 230-1 to 230-3 may be 55 micrometers to 70 micrometers. Alternatively, the line width of each of the third to fifth coil units 230-1 to 230-3 may be 60 micrometers to 65 micrometers. Alternatively, for example, the line width of each of the third to fifth coil units 230-1 to 230-3 may be 60 micrometers to 63 micrometers.

For example, the third coil unit 230-1 and the fourth coil unit 230-2 may be disposed to face each other in a direction from the first magnet 130-1 to the second magnet 130-2. .

Also, for example, in the direction from the first magnet 130-1 to the second magnet 130-2, the third coil unit 230-1 and the fourth coil unit 230-2 each have a fifth coil unit ( 230-3) and may not overlap.

For example, the third coil unit 230 - 1 may be disposed, seated, or coupled to the first mounting portion 213A of the base 210 , and the fourth coil unit 230 - 2 may be disposed on the base 210 . It may be disposed, seated, or coupled to the second seating portion 213B, and the fifth coil unit 230 - 3 may be disposed, seated, or coupled to the third seating portion 213C of the base 210 . .

For example, at least a portion of the second coil 230 may be disposed between the plurality of protrusions 215A and 215B. For example, at least a portion of the coil units (eg, 230-1 and 230-2) may be disposed between the plurality of protrusions 215A and 215B.

The first protrusion 215 - 1 may be coupled, inserted, or disposed in the hollow (or central hole) of the third coil unit 230-1. The second protrusion 215 - 2 may be coupled to, inserted into, or disposed in the hollow (or central hole) of the fourth coil unit 230 - 1 . The third protrusion 215 - 3 may be coupled to, inserted into, or disposed in the hollow (or central hole) of the fifth coil unit 230 - 1 .

For example, the height of the protrusions 215 - 1 to 215 - 3 may be lower than or equal to the height of the upper surface or the top of the second coil 230 (or the coil units 230 - 1 to 230 - 3 ).

For example, the height of the protrusions 215 - 1 to 215 - 3 may be less than or equal to the length of the coil units 230 - 1 to 230 - 3 in the optical axis direction. For example, the height of the protrusions 215-1 to 215-3 may be the length of the protrusions 215-1 to 215-3 in the optical axis direction.

For example, upper surfaces of the protrusions 215 - 1 to 215 - 3 may be lower than or equal to the first surface 30A of the upper surface 30 of the base 210 . This is because when the height of the protrusions 215-1 to 215-3 is higher than the first surface of the upper surface of the base 210, the lower surface of the circuit board 250 and the first surface 30A of the upper surface of the base 210 are lifted or because they can be separated.

The third to fifth coil units 230 - 1 to 230 - 5 may be fixed or attached to the lower surface of the circuit board 250 .

For example, the third coil unit 230-1 may be disposed adjacent to the first side of the lower surface of the circuit board 250 or the first side of the circuit board 250 . The fourth coil unit 230 - 2 may be disposed adjacent to the second side of the lower surface of the circuit board 250 or the second side of the circuit board 250 . The fifth coil unit 230 - 2 may be disposed adjacent to the third side of the lower surface of the circuit board 250 or the third side of the circuit board 250 . For example, the first side (or the first side) and the second side (or the second side) of the lower surface of the circuit board 250 may be located opposite to each other, and the third side (or the second side) of the lower surface of the circuit board 250 ( Alternatively, the third side) may be located between the first side (or the first side) and the second side (or the second side).

For example, the third coil unit 230-1 may be disposed in a first region between the first side (or first side) of the lower surface of the circuit board 250 and the opening 24A of the circuit board 250 , , the fourth coil unit 230 - 2 may be disposed in a second region between the second side (or second side) of the lower surface of the circuit board 250 and the opening 24A of the circuit board 250 , The fifth coil unit 230 - 3 may be disposed in a third region between the third side (or third side) of the lower surface of the circuit board 250 and the opening 24A of the circuit board 250 .

The third coil unit 230 - 1 may be disposed parallel to the first side (or the first side) of the lower surface of the circuit board 250 , and the fourth coil unit 230 - 2 is the circuit board 250 . may be disposed parallel to the second side (or second side) of the lower surface of the circuit board 250 , and the fifth coil unit 230 - 3 may be parallel to the third side (or third side) of the lower surface of the circuit board 250 . can be placed.

The circuit board 250 may include pads P1 to P6 electrically connected to the third to fifth coil units 230 - 1 to 230 - 3 .

The lens driving device 100 may further include a second position sensor 240 for OIS feedback driving. The second position sensor 240 may include a first sensor 240A and a second sensor 240B.

The first sensor 240A and the second sensor 240B may be disposed between the circuit board 250 and the base 210 . For example, the first sensor 240A and the second sensor 240B may be disposed between the lower surface of the circuit board 250 and the upper surface 30 of the base 210 .

Each of the first sensor 240A and the second sensor 240B may be a Hall sensor, and any sensor capable of detecting a magnetic field strength may be used. For example, each of the first and second sensors 240A and 240B may be implemented as a single position detection sensor such as a Hall sensor, or in the form of a driver IC including a Hall sensor.

For example, the first sensor 240A may be disposed in the first seating part 213A of the base 210 , and the second sensor 240A may be disposed in the third seating part 213C of the base 210 . there is.

For example, a separation space 214A may be formed between the first protrusion 215A and the second protrusion 215B positioned in the first seating part 213A, and the first sensor 240A may be disposed in the first seating part ( It may be disposed between the first protrusion 215A and the second protrusion 215B of the 213A.

For example, a separation space 214B may be formed between the first protrusion 215A and the second protrusion 215B positioned in the third seating part 213C, and the second sensor 240B may be disposed in the third seating part ( It may be disposed between the first protrusion 215A and the second protrusion 215B of the 213C.

In another embodiment, the first sensor may be disposed on a seating part formed separately from the first seating part, and the second sensor may be disposed on a seating part formed separately from the second seating part.

For example, the first sensor 240A may be disposed in the central hole of the third coil unit 230-1, and the second sensor 240B may be disposed in the central hole of the fifth coil unit 230-3. there is.

Referring to FIG. 8 , each of the first to third coil units 230-1 to 230-3 includes two straight parts 57A and 57B, 58A and 58B, 59A and 59B, and ends of the two straight parts. It may include a first curved portion (57C, 58C, 59C) for connecting, and a second curved portion (57D, 58D, 59D) for connecting the other ends of the two straight parts.

The first pad P1 of the circuit board 50 and the first sensor 240A may be disposed in the central hole of the third coil unit 230-1. The first pad P1 may be located adjacent to the first curved portion 57C among the first and second curved portions 57C and 57D of the third coil unit 230-1, and the first sensor 240A ) may be located adjacent to the second curved portion 57D among the first and second curved portions 57C and 57D of the third coil unit 230-1. In addition, the second pad P2 of the circuit board 50 may be located outside the central hole of the third coil unit 230-1, and the first and second curved portions (230-1) of the third coil unit 230-1. Among 57C and 57D, it may be disposed adjacent to the first curved portion 57C. In another embodiment, the first pad and the first sensor may be positioned opposite to those described above.

The fifth pad P5 and the second sensor 240B of the circuit board 50 may be disposed in the central hole of the fifth coil unit 230 - 3 . The second sensor 240B may be located adjacent to the first curved portion 58C among the first and second curved portions 58C and 58D of the fifth coil unit 230-1, and the fifth pad P5 ) may be located adjacent to the second curved portion 58D among the first and second curved portions 58C and 58D of the fifth coil unit 230 - 3 . In addition, the sixth pad P6 of the circuit board 250 may be located outside the central hole of the fifth coil unit 230 - 3 , and the first and second curved portions ( ) of the fifth coil unit 230 - 3 . Among 58C and 58D, it may be disposed adjacent to the second curved portion 58D. In another embodiment, the fifth pad and the second sensor may be positioned opposite to those described above.

The first curved portion 57C of the third coil unit 230 - 1 and the first curved portion 58C of the fifth coil unit 230 - 3 may be located adjacent to each other.

The third pad P3 of the circuit board 250 may be located in the central hole of the fourth coil unit 230 - 2 , and the third pad P3 is the first of the fourth coil unit 230 - 2 . and adjacent to the second curved portion 59D among the second curved portions 59C and 59D. The fourth pad P4 of the circuit board 250 may be located outside the central hole of the fourth coil unit 230 - 2 , and the first and second curved portions 59C of the fourth coil unit 230 - 2 . , 59D) may be located adjacent to the second curved portion 59D.

The first curved portion 59C of the fourth coil unit 230 - 2 may be positioned adjacent to the second curved portion 28D of the fifth coil unit 230 - 3 .

The first sensor 240A may be disposed to face or overlap the first magnet 130-1 in the optical axis direction. For example, the first sensor 240A may not overlap the second coil 230 , for example, the third coil unit 230-1 in the optical axis direction.

The second sensor 240B may be disposed to face or overlap the third magnet 130 - 3 in the optical axis direction. For example, the second sensor 240B may not overlap the second coil 230 , for example, the fifth coil unit 230 - 3 .

The first sensor 240A and the second sensor 240B may be coupled or attached to the lower surface of the circuit board 250 by solder or a conductive adhesive member. For example, the first sensor 240A and the second sensor 240Bb may be electrically connected to the circuit board 250 . For example, the first sensor 240A and the second sensor 240B may be electrically connected to the terminals 251 of the circuit board 250 .

For example, a driving signal may be provided to each of the first sensor 240A and the second sensor 240A through the terminals 251 of the circuit board 250 , and the terminals 251 of the circuit board 250 are connected to each other. Through this, the first output of the first sensor 240A and the second output of the second sensor 240B may be output.

The controller 830 of the camera module 200 or the controller 780 of the portable terminal 200A uses the first output of the first sensor 240A and the second output of the second sensor 240B to displace the OIS movable part. can be detected or detected.

For example, the first sensor 240A may sense the strength of the magnetic field of the first magnet 130-1 and output a first output, and the second sensor 240B may have the magnetic field of the third magnet 130-3. It is possible to detect the intensity of the , and output a second output.

The first sensor 240A and the second sensor 240B may detect the displacement of the OIS movable part in a direction perpendicular to the optical axis OA. Here, the OIS movable part may include an AF movable part and components mounted on the housing 140 .

For example, the "OIS movable part" may include the AF movable part and the housing 140, and according to an embodiment, the first to third magnets 130-1 to 130-3, the dummy member 11, and the yoke ( 135) may be further included.

The OIS movable part (eg, the housing 140) is moved by the interaction between the first to third magnets 130-1 to 130-3 and the third to fifth coil units 230-1 to 230-5. It may move in a direction perpendicular to the optical axis, for example, in the x-axis and/or y-axis direction, whereby hand shake correction may be performed.

The base 210 may include sides and corners (or corners). For example, the base 210 may include four sides and four corners. Three of the four side portions of the base 210 may be provided with the three mounting portions 213A to 213C, and the aforementioned groove 213D may be formed on the other side.

Corner portions of the base 210 may correspond to or face the corner portions 142-1 to 142-4 of the housing 140 in the optical axis direction.

The above-described escape skin 212 may be formed in the corner portions of the base 210 , and the third surface 30C may be formed. For example, the third surface 30C and the second stepped surface 31B of the base 210 may form a “step portion” for arranging the terminal portion 27 .

For example, at least one protrusion or coupling protrusion 19 protruding from the lower surface of the base 210 toward the upper surface may be formed on the third surface 30C of the base 210 . In FIGS. 7B and 7C, two coupling protrusions 19A and 19B that are spaced apart from each other are formed on the third surface 30C, but are not limited thereto, and in another embodiment, the number of coupling protrusions may be one or more. .

For example, in order to avoid spatial interference between the support members 220-1 to 220-4 and the coupling or bonded portion between the terminal 27 and the bonded portion, the recess 212 is formed at the center of the base 210 at the corner of the base 210. The width and diameter of the groove 212 or the distance between the inner surfaces of the groove 212 facing each other may increase in the direction toward the negative, but is not limited thereto.

The groove 212 may pass through the third surface 30C of the base 210 , and the groove 212 may have an opening open to the outer surface of the base 210 .

The terminal part 27 may be disposed on the third surface 30C of the base 210 .

For example, the recess 212 may expose the solder 902 for coupling the bottom surface of the terminal part 27 and the support member 220 from the bottom surface of the base 210 .

In order to avoid spatial interference between the solder 902 (see Fig. 15A) and the base 210, the recess 212 is to be overlapped with the coupling portions 81 and 82 of the terminal portion 27 in the optical axis direction, and the solder 902. can

For the coupling protrusion 19 of the base 210 to be coupled with the coupling holes 51A and 51B of the terminal part 27, the height of the coupling protrusion 19 may be greater than the length or thickness of the terminal part 27 in the optical axis direction. there is. In another embodiment, the height of the coupling protrusion 19 may be the same as or smaller than the length or thickness of the terminal part 27 in the optical axis direction.

In addition, the height of the coupling protrusion 19 of the base 210 may be smaller than the second step (or the distance in the optical axis direction) between the first surface 30A and the third surface 30C. In another embodiment, the height of the coupling protrusion 19 may be the same as the second step (or the distance in the optical axis direction) between the first surface and the third surface.

The coupling protrusion 19 of the base 210 may be positioned between the coupling parts 81 and 82 of the terminal part 27 and the second stepped surface 31B, but is not limited thereto.

A guide protrusion 7A for guiding and supporting the outer surface of the terminal part 27 may be formed at the edge of the third surface 30C of the base 210 . For example, the height of the upper surface of the guide protrusion 7A may be higher than the third surface 30C and lower than or equal to the first surface 30A.

The first position sensor 170 may be disposed between the base 210 and the circuit board 250 . For example, the first position sensor 170 may be disposed between the upper surface of the base 210 and the lower surface of the circuit board 250 . For example, the first position sensor 170 may be disposed between the first surface 30A of the upper surface 30 of the base 210 and the lower surface of the circuit board 250 .

It may be mounted, connected, or coupled to the lower surface of the circuit board 250 of the first position sensor 170 . For example, the first position sensor 170 may be disposed in the seating portion 214C of the base 210 .

The first position sensor 170 may be electrically connected to the circuit board 250 . For example, the first position sensor 170 may be electrically connected to the terminals 251 of the circuit board 250 .

At least a portion of the first position sensor 170 may face or overlap the sensing magnet 180 in the optical axis direction.

The bobbin 110 may be moved in the optical axis direction by the interaction between the first and second coil units 120-1 and 120-2 and the first and second magnets 130-1 and 130-2. In addition, the first position sensor 170 may sense the strength of the magnetic field of the sensing magnet 180 , and may output an output signal according to the sensed result. That is, the first position sensor 170 may serve to detect the displacement of the AF movable part (eg, the bobbin 110 ) in the optical axis direction.

The first position sensor 170 may be implemented as a single position detection sensor such as a Hall sensor, or may be implemented in the form of a driver IC (Integrated Circuit) including a Hall sensor.

When the first position sensor 170 is implemented as a Hall sensor alone, the first position sensor 170 may include two input terminals and two output terminals electrically connected to the circuit board 250 . The first position sensor 170 may receive a driving signal from the circuit board 250 , and an output of the first position sensor 170 may be transmitted to the circuit board 250 .

When the first position sensor 170 is a driver IC including a Hall sensor, one terminal for a clock signal, one terminal for a data signal, two terminals for a power signal, and the first coil 120 . may include two terminals for providing a driving signal to the , and these eight terminals may be electrically connected to the circuit board 250 .

13 is a view for explaining a relationship between a stroke range in a direction perpendicular to the optical axis of the OIS movable part, the size of the sensing magnet 180, and the arrangement of the first position sensor 170 according to the embodiment.

310 may be a sensing element or a sensing region of the first position sensor 170 that senses the strength of the magnetic field of the sensing magnet 180 . 320 may be a stroke range of the OIS movable part. Reference numeral 330 may be an area in which the sensing magnet 180 is disposed, and is shown as a square in FIG. 13 , but is not limited thereto, and may be displayed as a circle, a polygon, or an oval depending on the shape of the sensing magnet 180 .

Referring to FIG. 13 , in order to improve the sensitivity of the first position sensor 170 , a sensing element 310 of the first position sensor 170 may overlap the sensing magnet 180 in the optical axis direction. . For example, FIG. 13 may be an arrangement of the sensing magnet 180 and the first position sensor 170 at the initial position of the OIS movable part.

At the initial position of the OIS movable part, the sensing element 310 of the first position sensor 170 may overlap the sensing magnet 180 in the optical axis direction.

For example, in the initial position of the OIS movable part, the sensing element 310 of the first position sensor 170 overlaps the center 311 or the central region of the sensing magnet 180 in the optical axis direction, or the center 311 of the sensing magnet 180 ), but is not limited thereto.

Since the first position sensor 170 is disposed on the fixed part (eg, the circuit board 250 and the base 210), and the sensing magnet 180 is disposed on the OIS movable part, the OIS movable part is perpendicular to the optical axis with respect to the fixed part. If it moves in one direction, the alignment or relative positional relationship in the optical axis direction between the sensing magnet 180 and the first position sensor 170 may be changed, and thus the sensitivity of the first position sensor 170 may decrease or the first position The sensitivity of the sensor 170 may be affected.

The stroke range 320 of the OIS movable unit in the direction perpendicular to the optical axis may overlap the sensing magnet 180 in the optical axis direction, and thus the first position sensor ( 170) can be prevented from decreasing.

For example, the stroke range 320 of the OIS movable part may be a circle having the maximum stroke of the OIS movable part as a radius. The maximum stroke of the OIS movable part may be the maximum stroke of the OIS movable part in either direction (eg, +X-axis direction or +Y-axis direction) perpendicular to the optical axis at the initial position of the OIS movable part.

That is, even if the OIS movable part moves in a direction perpendicular to the optical axis, the first position sensor 170 and the sensing magnet 180 may maintain a state in which at least a portion overlaps in the optical axis direction. For example, within the displacement in the direction perpendicular to the optical axis of the OIS movable part, the sensing element of the first position sensor 170 and the sensing magnet 180 may maintain an overlapping state in the optical axis direction.

In addition, the sensing magnet 180 may have a size capable of covering the stroke range 320 of the OIS movable part.

For example, a cross-sectional area of the sensing magnet 180 in a direction perpendicular to the optical axis may be larger than an area of the stroke range 320 of the OIS movable part. In another embodiment, the cross-sectional area of the sensing magnet 180 in a direction perpendicular to the optical axis may be the same as the stroke range of the OIS movable part.

Due to the influence of gravity, deflection (or movement) of the OIS moving part in the direction of gravity may occur, and the resolution of the camera module may deteriorate due to such deflection (or movement). As the weight of the OIS movable part increases due to an increase in the size of the lens, the deflection of the OIS movable part in the gravitational direction due to the effect of gravity may become larger, and thus the resolution degradation may be worse.

In the embodiment, since the first position sensor 170 is disposed on the fixed part, it is possible to automatically compensate or correct the movement (or sag) of the AF movable part due to the movement (or sag) of the OIS movable part due to the effect of gravity. there is.

In another embodiment, the first position sensor 170 may not be disposed on the base 210 but may be disposed on the housing 140 to correspond to the sensing magnet 180 .

In another embodiment, the sensing magnet may be disposed on the housing, and the first position sensor may be disposed on the bobbin 110 .

A magnetic field may be generated in the second coil 230 to which the driving signal is provided for driving the OIS. In order to increase the accuracy of the first position sensor 170 , it is preferable to space the first position sensor 170 away from the second coil 230 so as to be less affected by the magnetic field of the second coil 230 .

In the embodiment, in order to reduce the influence of the magnetic field of the second coil 230 , the first position sensor 170 is the third to fifth coil units 230 - 1 to 230 - 5 of the base 210 not disposed. It may be disposed in one area of the upper surface.

For example, the third coil unit 230-1 is to be disposed in a first area of the upper surface of the base 210 adjacent to the first side of the upper surface of the base 210 (or the first outer surface of the base 210). The fourth coil unit 230-1 is disposed in a second region of the upper surface of the base 210 adjacent to the second side of the upper surface of the base 210 (or the second outer surface of the base 210). The fifth coil unit 230 - 5 is located in the third region of the upper surface of the base 210 adjacent to the third side of the upper surface of the base 210 (or the third outer surface of the base 210 ). can be placed. For example, the first position sensor 170 may be disposed in a fourth area of the upper surface of the base 210 adjacent to the fourth side of the upper surface of the base 210 (or the fourth outer surface of the base 210 ). .

The first area (the first side or the first outer surface) and the second area (the second side or the second outer surface) of the base 210 may be located opposite to each other, and the third area ( The third side or the third outer surface) and the fourth region (the fourth side or the fourth outer surface) may be located opposite to each other.

The terminal part 27 may be disposed on the base 210 . The terminal part 27 may be coupled or connected to the other end of the support member 220 . The terminal part 27 may be electrically connected to the support member 220 and may be electrically connected to the circuit board 250 . The terminal part 27 may electrically connect the support member 220 and the circuit board 250 .

The terminal part 27 may be positioned between the first surface 30A and the third surface 30C of the upper surface of the base 210 .

For example, the upper surface of the terminal part 27 may be higher than the lower surface of the base 210 and lower than the first surface 30A of the upper surface 30 of the base 210 . For example, the upper surface of the terminal part 27 may be higher than the third surface 30C of the upper surface of the base 210 and lower than the first surface 30A of the upper surface 30 of the base 210 .

For example, the lower surface of the terminal part 27 may be higher than the lower surface of the base 210 and lower than the first surface 30A of the upper surface 30 of the base 210 . For example, the lower surface of the terminal part 27 may be higher than the third surface 30C of the upper surface of the base 210 and lower than the first surface 30A of the upper surface 30 of the base 210 .

Referring to FIG. 9D , for example, the lower surface of the body 50A of the terminal part 27 may be positioned lower than the lower surface of the coil unit (eg, 230 - 2 ) of the second coil 230 . For example, the upper surface of the body 50A of the terminal part 27 may be positioned lower than the lower surface of the coil unit (eg, 230 - 2 ) of the second coil 230 .

In another embodiment, for example, the lower surface (or upper surface) of the body 50A of the terminal part 27 may be located on the same plane as the lower surface of the coil unit (eg, 230 - 2 ) of the second coil 230 .

In another embodiment, for example, the lower surface (or upper surface) of the body 50A of the terminal part 27 may be positioned higher than the lower surface of the coil unit (eg, 230 - 2 ) of the second coil 230 .

The terminal unit 27 may include at least one terminal. For example, the terminal unit 27 may include a plurality of terminals 27A to 27D spaced apart from each other.

14A shows an embodiment of the first terminal 27A of the terminal part 27 , FIG. 14B shows an embodiment of the third terminal 27C of the terminal part 27 , and FIG. 15A shows a lens according to an embodiment A partial perspective view of the driving device 100 , FIG. 15B is a combined perspective view of a first terminal and a first support member 220-1, and FIG. 15C is a first terminal 27A and a first support member 220-1. , and a combined perspective view of the solder 902 .

14A to 15C , the first terminal 27A may include a body 50A coupled to the support member 220-1 and an extension portion 50B extending from the body 50A.

One end of the extension part 50B may be electrically connected to the circuit board 250 . For example, one end of the extension portion 50B may be electrically connected to the first pad Q1 of the circuit board 250 by solder or a conductive adhesive member. The extension 50B of the second terminal 27B may be electrically connected to the second pad Q2 of the circuit board 250 .

The body 50A may be disposed on the third surface 3C of the base 210 . The body 50A may be positioned lower than the circuit board 250 . For example, the upper surface of the body 50A may be positioned lower than the lower surface of the circuit board 250 .

Compared with the comparative example in which the support member is coupled to the circuit board by solder or the like, in the embodiment, the upper surface of the body 50A coupled to the support member 220-1 is located below the lower surface of the circuit board 250 . , the length of the support member 220 in the optical axis direction may be increased. As the length of the support member 220 increases, the resistance of the support member 220 may increase, and the intensity of a current flowing through the support member 220 may decrease. Due to this, the embodiment can reduce power consumption, and it is possible to prevent deterioration of reliability of OIS driving due to reduction in OIS wire diameter for reducing power consumption.

The body 50A may include coupling regions 81A and 82A for coupling with the support member 220-1, and first holes 81B and 82B formed in the coupling regions 81A and 82A. The bonding regions 81A and 82A may be one region of the body 50A to which the support member 220-1 and solder are coupled.

The first holes 81B and 82B may be through holes. The other end of the support member 220-1 passes through the first holes 81B and 82B, and the other end of the support member 220-1 that passes through the first holes 81B and 82B has a solder 901 or conductive adhesive. may be coupled to the lower or lower surfaces of the coupling regions 81A and 82A.

A diameter R1 of the first holes 81B and 82B may be greater than a diameter of the support member 220 - 1 .

For example, the diameter (or thickness) of the 1-1 support member 20A may be 40 micrometers to 100 micrometers. Alternatively, for example, the diameter (or thickness) of the 1-1 support member 20A may be 50 micrometers to 70 micrometers. Alternatively, for example, the diameter (or thickness) of the 1-1 support member 20A may be 50 micrometers to 60 micrometers.

The diameter R1 of the first holes 81B and 82B may be 0.15 [mm] to 0.3 [mm]. Alternatively, for example, the diameter R1 of the first holes 81B and 82B may be 0.2 [mm] to 0.25 [mm]. Alternatively, for example, the diameter R1 of the first holes 81B and 82B may be 0.15 [mm] to 0.2 [mm].

The shape of the coupling regions 81A and 81B in FIG. 14A may be circular, but is not limited thereto, and in another embodiment, may be an ellipse or a polygon (eg, a triangle or a quadrangle).

The diameter R2 of the coupling regions 81A and 81B may be greater than the diameter R1 of the first holes 81B and 82B. For example, the bonding regions 81A and 81B may have an area or diameter sufficient to allow the solder 901 and the support member 220 - 1 to be well coupled.

In addition, the body 50A may include at least one second hole 81D, 82D formed around the coupling regions 81A and 82A. For example, the body 50A may include at least one second hole 81D, 82D formed to surround the coupling regions 81A and 82A.

For example, the body 50A may include a plurality of second holes formed to surround the coupling regions 81A and 82A, and the plurality of second holes 81D and 82D may be spaced apart from each other.

Also, the plurality of holes 81D and 82D may be spaced apart from the first holes 81B and 82B.

The at least one second hole 81D, 82D serves to mainly form only the bonding regions 81A and 82A by interfacial tension (eg, surface tension) at the edges of the bonding regions 81A and 82A during soldering. can do.

In addition, for soldering, the bonding regions 81A and 82A must be heated. At least one second hole 81D, 82D prevents the heat of the bonding regions 81A and 82A from being transferred to other regions of the body 50A. It can be suppressed or blocked, so that solder by soldering is not formed in other areas of the body 50A. As a result, the at least one j second hole (81D, 82D) can improve the solderability of the solder (902; 64A, 64B).

In addition, the body 50A may include support portions 81C and 82C positioned between the plurality of second holes 81D and 82D and supporting the coupling regions 81A and 81B. The support portions 81C and 82C may be expressed by replacing them with “connections” or “bridges”.

For example, the support parts 81C and 82C may include a plurality of support parts 2A to 2C spaced apart from each other.

For example, the coupling portion of the first terminal 27A includes the first coupling portion 81 coupled to the 1-1 support member 20A of the first support member 220-1, and the 1-2 support member 20B. ) and may include a second coupling portion 82 coupled to.

Each of the first and second coupling portions 81 and 82 may include the above-described coupling regions 81A and 82A and first holes 81B and 82B. In addition, each of the first and second coupling portions 81 and 82 may include the above-described plurality of second holes 81D and 82D, and support portions 81C and 82C.

The body 50A may include at least one coupling hole 51A, 51B or a hole for coupling with the coupling protrusion 19 of the base 210 . For example, the coupling holes 51A and 51B may be through holes.

For example, the body 50A may include two coupling holes 51A and 51B for coupling with the two coupling protrusions 91A and 19B of the base 210, but the number of coupling holes is limited thereto. not, and may be one or more. The coupling protrusions 91A and 91B may be inserted into the coupling holes 51A and 51B or pass through the coupling holes 51A and 51B.

At least a portion of the extension portion 50B may be disposed on the third surface 30C of the upper surface 30 of the base 210 . One end of the extension 50B may be connected to the body 50A, and the other end of the extension 50B may be connected to the pad Q1 of the circuit board 250 . The extension 50B and the pad Q1 of the circuit board 250 may be coupled to each other by solder or a conductive adhesive.

The extension portion 50B may include at least one bent portion or a curved portion.

For example, the extension portion 50B is connected to the first portion 5A and the first portion 5A disposed on the third surface 30C of the upper surface 30 of the base 210 and includes the second portion of the base 210 . A second portion 5B disposed on the stepped surface 31B may be included. The second portion 5B may be bent from the first portion 5A toward the circuit board 250 , and may be connected to the pad Q1 or Q2 of the circuit board 250 .

The first terminal 27A may be coupled or attached to the base 210 by an adhesive. For example, by an adhesive, the body 50A may be coupled or attached to the third surface 30C of the upper surface 30 of the base 210 , and the extension 50B is the upper surface 30 of the base 210 . It may be coupled or attached to the third surface 30C and the second stepped surface 31B.

In another embodiment, the terminal 27A may have a structure inserted into the base 210 using an insert injection method. For example, the terminal 27A may be insert-injected into the base 210 , and at least a portion of the terminal 27A may be inserted into the base 210 or disposed inside the base 210 .

For example, the second terminal 28B may have the same or similar structure as the first terminal 27A, and the description of the first terminal 27A in FIG. 14A may be applied or analogically applied to the second terminal 27B. there is.

Referring to FIG. 14B , in the third terminal 27C, the second portion 5B coupled to the pad (eg, Q1 ) of the circuit board 250 at the first terminal 27A of FIG. 14A may be omitted.

The description of the first terminal 27A of FIG. 14A may be applied or analogically applied to the second to fourth terminals 27B to 27D.

In another embodiment, the third and fourth terminals 27C and 27D may also include the second portion 5B of the first terminal 27A of FIG. 14A , and the circuit board 250 may include the third and fourth terminals 27A. Pads respectively coupled or electrically connected to the terminals 27C and 27D may be provided.

As shown in FIG. 7A , the first to fourth terminals 27a to 27D are spaced apart from each other, but the present invention is not limited thereto. In another embodiment, the first terminal 27A is connected to the third and fourth terminals ( 27C and 27D may be connected to any one or both may be integrally formed, and the second terminal 28B may be connected to the other one of the third and fourth terminals 27C and 27D or both are integrally formed. it might be

The cover member 300 includes an OIS movable part, an upper elastic member 150, a lower elastic member 160, a second coil 230, a base 210, and a terminal part 27 in an accommodation space formed together with the base 210. , the circuit board 250 , the support member 220 , and the second position sensor 240 may be accommodated therein.

The cover member 300 has an open lower portion, and may be in the form of a box including an upper plate 301 and side plates 302 , and a lower portion of the side plate 302 of the cover member 300 is a step of the base 210 ( 211) can be combined. The shape of the upper plate 301 of the cover member 300 may be a polygon, for example, a quadrangle or an octagon.

An opening 303 for exposing the lens module 400 coupled to the bobbin 110 to external light may be formed in the upper plate 301 of the cover member 300 . The material of the cover member 300 may be a non-magnetic material such as SUS in order to prevent sticking to the magnet 130 . The cover member 300 may be formed of a metal plate, but is not limited thereto, and may be formed of plastic. Also, the cover member 300 may be connected to the ground terminal of the circuit board 250 of the lens driving device and/or the ground of the circuit board 800 of the camera module 200 . The cover member 300 may block electromagnetic interference (EMI).

Each of the two support members 20A and 20B of the first support member 220-1 may be implemented as a single strand of wire, but is not limited thereto.

16A shows a first support member 220-1A according to another embodiment, and FIG. 16B shows a coupling between the first support member 220-1A and the first upper elastic member 150-1 of FIG. 16A. Some enlarged views. Hereinafter, the description of the first support member 220-1A will also be given to the terminals and upper elastic members of the remaining second to fourth support members 220-2 to 220-4, and the corresponding terminal part 27. may be applied or applied mutatis mutandis.

16A and 16B , the first support member 220-1A includes the first-first support member 20A-1 implemented as a single strand of wire, and the first-second support member 20A-1 made of a non-conductive material. (20B1) may be included.

For example, the 1-1 support member 20A-1 may have a stiffness (or spring constant) different from that of the 1-1 support member 20A (or the 1-2 support member 20B) of FIG. 15A . .

For example, the stiffness (or spring constant) of the 1-1 support member 20A-1 is determined by the stiffness (or spring) of the 1-1 support member 20A (or the 1-2 support member 20B) of FIG. 15A . constant) can be less than

For example, the diameter of the 1-1 support member 20A-1 may be smaller than or equal to the diameter of the 1-1 support member 20A (or the 1-2 support member 20B) of FIG. 15A . For example, as the diameter range of the 1-1 support member 20A-1, the diameter range of the 1-1 support member 20A of FIG. 15A may be applied or applied mutatis mutandis.

On the other hand, the first-second support member 20B1 made of a non-conductive material has a different rigidity (or spring constant) than the first-first support member 20A (or the 1-2 support member 20B) of FIG. 15A . can have

For example, the rigidity (or spring constant) of the 1-2-th supporting member 20B1 made of a non-conductive material is the stiffness (or spring constant) of the 1-1 supporting member 20A (or 1-2-th supporting member 20B) of FIG. 15A . (or spring constant).

For example, the bobbin 110 , the housing 140 , and/or the base 210 may be made of an injection-molded product (eg, resin, rubber, urethane, or plastic) by injection molding, and the 1-2 support member 20B1 ) may also be made of an injection-molded product (eg, resin, rubber, urethane, or plastic). The 1-2 support member 20B1 may be elastically deformed.

For example, the 1-2 support member 20B1 may be made of a thermoplastic elastomer.

The cross-section of the 1-2 support member 20B1 in the direction perpendicular to the optical axis of the 1-2 support member 20B1 may be circular, but is not limited thereto. In another embodiment, a cross section of the 1-2 support member 20B1 in a direction perpendicular to the optical axis may have a polygonal shape.

The 1-2 support member 20B1 is made of the above-described injection-molded material, and may serve as a damper for a buffering action.

One end of the first-second support member 20B1 may be coupled or connected to the second coupling part 72B of the first outer frame 152 of the first upper elastic member 150-1. For example, one end of the 1-2 support member 20B1 may be coupled to the second coupling portion 72B of the first outer frame 152 by the adhesive 350 .

The adhesive 350 is applied to the first end A2 or "first fixing part" of the 1-2 support member 20B1 and the first outer frame 152 of the first upper elastic member 150-1 corresponding thereto. ) may be disposed between the second coupling portions 72B, and both may be coupled or attached.

For example, at least a portion of the adhesive 350 may include the first end A2 or “first fixing part” of the 1-2 support member 20B1 and the first outer frame of the first upper elastic member 150-1. It may be disposed on the second coupling portion 72B of 152 and may couple both.

For example, the adhesive 350 may be a resin (eg, epoxy) or silicone, but is not limited thereto.

The other end of the 1-2 support member 20B1 may be coupled to the first terminal 27A1 .

The first terminal 27A1 is a modified example of the first terminal 27A of FIG. 15A , wherein the body 50A1 of the first terminal 27A1 is connected to or communicated with the second coupling part 82 or a third hole ( 53A) may be further included. For example, a part of the third hole 53A may be formed in the coupling region 82A of the second coupling part 82 , and may be formed with the first hole 82B of the second coupling part 82 of the body 50A1 and The second hole 82D may be connected or communicated. Another part of the third hole 53A may be formed to extend from the second hole 82D to the outer surface of the body 50A1, and may include an opening 53A1 open to the outer surface of the body 50A1. there is.

For example, the other end of the 1-2 support member 20B1 may be inserted or fit into the groove 53A of the first terminal 27A1 through the opening 53A1 of the hole 53A, and the 1-2 support member The other end of 20B1 may be inserted or disposed in the first hole 82B. Also, for example, the other end of the 1-2 support member 20B1 may be coupled to the first hole 82B of the second coupling part 82 of the first terminal 27A1 by an adhesive such as epoxy or silicone.

The 1-2 support member 20B1 includes a body A1, a first end A2 or a first fixing part disposed between one side of the body A1 and the first upper elastic member 150-1, and It may include a second end (A3, or a second fixing part) disposed between the other side of the body (A1) and the first terminal (27A1).

The body A1 may have a column shape. For example, the body A1 may be in the shape of a baeheulleum column or entasis, but is not limited thereto. For example, the cross section of the body A1 in a direction perpendicular to the optical axis may be circular, elliptical, or polygonal (eg, quadrangular).

For example, the body A1 may include at least a portion in which the diameter B1 decreases from the center of the body A1 to the first end A2. Also, the body A1 may include at least a portion in which the diameter B1 decreases from the center of the body A1 toward the second end A3. The diameter of the body A1 may be the length of the body A1 in a direction perpendicular to the optical axis.

For example, from the center of the body A1 to the first end A2, the diameter B1 of the body A1 may decrease, and from the center of the body A1 to the second end A3, the body A1 ) may decrease in diameter B1. The diameter of the body A1 may be the length of the body A1 in a direction perpendicular to the optical axis.

For example, in the direction from the first end A1 (or the second end A2) to the second end A2 (or the first end A1), the diameter of the body A1 may increase and decrease.

In another embodiment, the diameter of the body A1 may increase from the center of the body A1 to the first end A2, and from the center of the body A1 to the second end A3 of the body A1. The diameter of may be increased.

In another embodiment, the diameter of the body A1 may decrease from the first end A2 to the second end A3. In another embodiment, the diameter of the body A1 may increase from the first end A2 to the second end A3.

In another embodiment, the diameter of the body A1 from the first end A1 (or the first connecting portion A4) to the second end A3 (the second connecting portion A5) may be uniform.

The first end A2 may be connected to or coupled to the first upper elastic member 150 - 1 . The first end A2 may be disposed below the second coupling portion 72B of the first outer frame 152 of the first upper elastic member 150 - 1 .

The shape of the first end A2 may be a cylindrical shape, but is not limited thereto, and may be a polyhedron (eg, a hexahedron), and a cross-sectional shape in a direction perpendicular to the optical axis may be a circle, an ellipse, or a polygon (eg, a quadrangle). ) can be

In another embodiment, the first end A2 may be disposed in the hole 152a of the first outer frame 152 of the first upper elastic member 150-1 or may pass through the hole 152a.

The second end A3 may be connected to or coupled to the first terminal 27A1 . For example, the second end A3 may be coupled or attached to the first terminal 27A1 by an adhesive.

The second end A3 may be disposed under the first hole 82B of the body 50A1 of the first terminal 27A1.

The shape of the second end A3 may be a cylindrical shape, but is not limited thereto, and may be a polyhedron (eg, a hexahedron), and a cross-sectional shape in a direction perpendicular to the optical axis may be a circle, an ellipse, or a polygon (eg, a quadrangle). ) can be

The 1-2 support member 20B1 may further include a first connecting portion A4 or a first deformable portion disposed between the body A1 and the first end A2. The first connecting portion A4 may connect the body A1 and the first end A2.

The 1-2 support member 20B1 may further include a second connection part A5 or a second deformable part disposed between the body A1 and the second end A3. The second connecting portion A5 may connect the body A1 and the second end A3. At least a portion of the second connection portion A5 may be disposed in the first hole 82B of the first terminal 27A1 . For example, at least a portion of the second connection portion A4 may pass through the first hole 82B.

The length L21 in the optical axis direction of the body A1 may be greater than the lengths T1 and T2 in the optical axis direction of the first and second ends A2 and A3, respectively.

The length L21 in the optical axis direction of the body A1 may be greater than the lengths L22 and L23 in the optical axis direction of the first and second connection parts A4 and A5, respectively. In another embodiment, the length of the body A1 in the optical axis direction may be less than or equal to the length in the optical axis direction of each of the first and second connecting parts A4 and A5.

For example, the length L21 of the body A1 in the optical axis direction may be 30% to 90% of the length L11 of the first-second supporting member 20B1 in the optical axis direction. For example, the length L21 of the body A1 in the optical axis direction may be 65% to 80% of the length L11 of the first-second support member 20B1 in the optical axis direction. Alternatively, for example, the length L21 of the body A1 in the optical axis direction may be 68% to 75% of the length L11 of the first-second support member 20B1 in the optical axis direction.

The length T1 of the first end A2 in the optical axis direction may be greater than the length T2 of the second end A3 in the optical axis direction. In another embodiment, the length T1 of the first end A2 in the optical axis direction may be equal to or smaller than the length T2 of the second end A3 in the optical axis direction.

The length L21 of the first connection part A4 in the optical axis direction may be the same as the length L23 of the second connection part A5 in the optical axis direction. In another embodiment, the length L22 of the first connection part A4 in the optical axis direction may be different from the length L23 of the second connection part A5 in the optical axis direction. For example, L22 > L23 or L22 < L23.

The diameter B1 of the body A1 may be less than or equal to the diameter B2 of the first end A2 (or the diameter B3 of the second end A3). In another embodiment, the diameter B1 of the body A1 may be larger than the diameter B2 of the first end A2 (or the diameter B3 of the second end A3). The diameter B2 (or B3) may be the length of the first end A2 (or the second end A3) in a direction perpendicular to the optical axis.

A diameter B4 of the first connection portion A4 may be smaller than a diameter B2 of the first end portion A2 . Also, the diameter B5 of the second connection portion A5 may be smaller than the diameter B3 of the second end A3. The diameter B4 (or the diameter B5 ) may be a length of the first connection part A4 (or the second connection part A5 ) in a direction perpendicular to the optical axis.

For example, each of the diameter B4 of the first connection part A4 and the diameter B5 of the second connection part A5 may be 150 micrometers to 200 micrometers. Alternatively, each of the diameter B4 of the first connection part A4 and the diameter B5 of the second connection part A5 may be 160 micrometers to 185 micrometers.

For example, the ratio of the diameter of the 1-1 support member 20A-1 to the diameters B4 and B5 of the first connection part A4 (or the second connection part A5) may be 2.14 to 4.

For example, the diameter B4 of the first connecting portion A4 (or the diameter B5 of the second connecting portion A5) is the diameter B2 of the first end A2 (or the diameter of the second end A3) It may be 15% to 80% of B3)).

Or, for example, B4 (or B5) may be 20% to 50% of B2 (or B3). Or, for example, B4 (or B5) may be 20% to 30% of B2 (or B3).

A diameter B4, B5 of each of the first and second connecting portions A4, A5 is a diameter B2, B3 of each of the first and second ends A2, A3 and a diameter B1 of the body A1 ), deformation can easily occur during OIS operation.

When B4 (or B5) is less than 15% of B2 (or B3), the first support member 220-1A cannot stably support the OIS movable part when the OIS is driven, and the 1-2 support member 20B1 may be disconnected.

On the other hand, when B4 (or B5) is greater than 80% of B2 (or B3), deformation of the 1-2 support member 20B1 is not easy during OIS driving, and thus more electromagnetic force for normal OIS driving This is necessary, and power consumption may be increased.

For example, the diameter B3 of each of the first and second connection parts A4 and A5 may be smaller than or equal to the diameter B1 of the body A1. For example, a diameter B3 of each of the first and second connecting portions A4 and A5 may be smaller than a diameter of a central portion of the body A1 .

In order for at least a part of the second connection part to be disposed in the first hole 82B of the first terminal 27A1, the diameter of the first hole 82B of the first terminal 27A1 is the diameter B5 of the second connection part A5. ) can be greater than

Each of the first and second connecting portions A4 and A5 may have a concave shape formed between the first end A2 and the body A1 and between the second end A3 and the body A1 .

The aforementioned body A1 may be replaced with a “first part”, the first end A2 may be replaced with a “second part”, and the second end A3 may be replaced with a “third part” and the first connection part A4 may be replaced with a “fourth part” or a “first deformable part”, and the second connection part A5 may be replaced with a “fifth part” or a “second deformable part” can do.

Each of the first connection part A4 and the second connection part A5 has a circular shape, but may have different shapes of curves, and the number of connection parts may be configured in plural according to the characteristics of the product. The shape of the connection part may be implemented in a form such as some bending or clamping.

In another embodiment, the first connecting portion and the second connecting portion of FIG. 16A may be omitted, and one side of the body may be connected to the first end, and the other end of the body may be connected to the second end.

16C is a perspective view of a 1-2-th support member 20B2 according to another exemplary embodiment.

Referring to FIG. 16C , the 1-2-th support member 20B2 is a modified example of the 1-2-th support member 20B1, in a direction perpendicular to the optical axis of the body A11 of the 1-2 support member 20B2. may be uniform in length.

The 1-2 support member 20B2 may include a body A11 , a first end A12 , and a second end A13 . Also, the 1-2 support member 20B2 may include a first connection part A14 connecting the first end A12 and one side of the body A11. In addition, the 1-2 support member 20B2 may include a second connection part A15 connecting the second end A12 and the other side of the body A11.

The diameter of the body A11 may be uniform from the first connecting portion A14 to the second connecting portion A15. As for the length of each part in the optical axis direction of FIG. 16C, the description of the length of each part in the optical axis direction of FIG. 16A may be applied or applied mutatis mutandis.

Each of the diameter of the first end A12 and the diameter of the second end A13 may be the same as the diameter B11 of the body A11. In another embodiment, each of the diameter of the first end A12 and the diameter of the second end A13 may be different from the diameter B11 of the body A11.

A diameter of each of the first and second connecting portions A14 and A15 may be smaller than a diameter of the first end A12 , a diameter of the second end A13 , and a diameter B11 of the body A11 .

As for the ratio relationship between the diameters of the first and second connecting portions A14 and A15 and the diameters of the first and second ends A12 and A13, the description of FIG. 16A may be applied or applied mutatis mutandis.

16D is a perspective view of a 1-2-th support member 20B3 according to another exemplary embodiment.

Referring to FIG. 16D , the 1-2-th support member 20B3 may be another modified example of the 1-2-th support member 20B1 . For example, the length T21' of the body A1 in the optical axis direction is the length T22 of the fourth portion A4 (or the fifth portion A5) of the 1-2 support member 20B3 in the optical axis direction. '(or T23')).

For example, the length T21 ′ of the body A1 in the optical axis direction may be 1 [mm] to 1.5 [mm]. For example, T21' may be 1.15 [mm] to 1.3 [mm].

Also, for example, the length T22 ′ of the fourth portion A4 in the optical axis direction may be equal to the length T23 ′ of the fifth portion A5 in the optical axis direction. For example, T22' and T23' may be 0.8 [mm] to 1.4 [mm]. For example, for example, T22' and T23' may be 1 [mm] to 1.2 [mm].

In another embodiment, the length T22' of the fourth part A4 in the optical axis direction may be different from the length T23' of the fifth part A5 in the optical axis direction. For example, the former may be greater or less than the latter.

Also, for example, the length T1' of the first end A2 of the 1-2 support member 20B3 in the optical axis direction and the optical axis direction of the second end A3 of the 1-2 support member 20B3 Each of the lengths T2' may be smaller than the length T22' of the fourth part A4 in the optical axis direction and/or the length T23' of the fifth part A5 in the optical axis direction.

For example, each of T1' and T2' may be 0.1 [mm] to 0.2 [mm]. For example, each of T1' and T2' may be 0.1 [mm] to 0.15 [mm].

Also, the length T1 ′ of the first end A2 in the optical axis direction and the length T2′ of the second end A3 in the optical axis direction may be the same, but the present invention is not limited thereto. In , the two can be different. For example, T1'>T2' or vice versa.

Also, for example, the diameter B2' of the first end A2 of the 1-2 support member 20B3 may be smaller than the diameter B3' of the second end A3 of the 1-2 support member 20B3. can

Also, for example, the diameters B4', B5' of each of the fourth part A4 and the fifth part A5 are the diameter B2' of the first end A2 (or the diameter of the second end A3) B3')).

For example, the diameter B2' of the first end A2 may be 0.3 [mm] to 0.5 [mm]. For example, the diameter B2' of the first end A2 may be 0.4 [mm] to 0.44 [mm].

For example, the diameter B3' of the second end A3 may be 0.55 [mm] to 0.7 [mm]. For example, the diameter B3' of the second end A3 may be 0.6 [mm] to 0.65 [mm].

For example, the diameters B4' and B5' of the fourth part A4 and the fifth part A5 may be 0.15 [mm] to 0.2 [mm]. Each of the diameters B4' and B5' of the fourth part A4 and the fifth part A5 may be 0.16 [mm] to 0.185 [mm].

For example, the diameters B4' and B5' of the fourth part A4 and the fifth part A5 may be larger than the diameter (or thickness) of the first-first support member 20A. In another embodiment, both may be identical to each other. In another embodiment, the former may be smaller than the latter.

For example, the diameters B4' and B5' of the fourth part A4 and the fifth part A5 may be 1.5 to 5 times the diameter (or thickness) of the 1-1 support member 20A. For example, the diameters B4' and B5' of the fourth part A4 and the fifth part A5 may be 1.5 to 3 times the diameter (or thickness) of the 1-1 support member 20A. Or, for example, the diameters B4' and B5' of each of the fourth part A4 and the fifth part A5 are 2 to 3 times the diameter (or thickness) of the 1-1 support member 20A. can

The body A1 is a portion adjacent to the injection part of the mold into which the injection product is injected, has a shape similar to that of the body A1 of FIG. 16A , and may have at least one plane. In this case, the plane may be formed at a position corresponding to the injection part of the mold.

The 1-2 support member 20B3 may include a protrusion AP protruding from an upper surface of the first end A2 . The protrusion AP may be coupled to the second coupling portion 72 of the first upper elastic member 150 - 1 by the adhesive member.

For example, the second coupling portion 72 of the first upper elastic member 150-1 may include a coupling hole coupled to the projection AP of the 1-2 support member 20B3, and the projection AP. At least a portion of may be disposed in the coupling hole, the adhesive member may be disposed in the projection (AP) and the coupling hole, it is possible to couple both.

For example, the diameter of the protrusion AP may be the same as the diameters B4' and B5' of the fourth portion A4 (or/and the fifth portion A5). In another embodiment, the diameter of the protrusion AP may be smaller or larger than the diameters B4' and B5' of the fourth portion A4 (or/and the fifth portion A5).

17A is a perspective view of a first support member 220 - 1B according to another exemplary embodiment.

Referring to FIG. 17A , the first support member 220 - 1B includes two support members, each of which is a 1-2 support member 20B1 made of the non-conductive material described with reference to FIG. 16A . can

A fourth hole 53B may be formed in the body 50A2 of the first terminal 27A2 corresponding to the first support member 220-1B, and the fourth hole 54B is formed on the outer surface of the body 50A2. It may include an opening 53B1 that is opened to , and the description of the third hole 53A and the opening 53A1 of FIG. 16A may be applied or applied mutatis mutandis to the embodiment of FIG. 17 .

17B is a perspective view of a first support member 220-1C according to another exemplary embodiment.

Referring to FIG. 17B , the first support member 220 - 1C may include a 1-1 support member 20C11 and a 1-2 support member 20C12 .

Although the 1-1 support member 20A of FIG. 15A is implemented as a single strand of wire, each of the two support members 20C11 and 20C12 of FIG. 17B may be implemented in a form in which two or more wires are twisted.

For example, each of the first-first support member 20C1 and the first-second support member 20C2 may have a form in which four wires are twisted.

For example, the diameter (or thickness) of each of the four-stranded wires may be 20 micrometers to 30 micrometers. For example, the diameter (or thickness) of each of the four-stranded wires may be 24 micrometers to 28 micrometers. Or, for example, the diameter (or thickness) of each of the four-stranded wires may be 26 micrometers to 28 micrometers.

18A is a perspective view of a first support member 220 - 1D according to another exemplary embodiment.

Referring to FIG. 18A , the first support member 220 - 1D may include a 1-1 support member 20A - 2 and a 1-2 support member 20C2 of FIG. 18 .

For example, the 1-1 support member 20A-2 may have a stiffness (or spring constant) different from that of the 1-1 support member 20A (or the 1-2 support member 20B) of FIG. 15A . . For example, the rigidity (or spring constant) of the 1-1 support member 20A-2 is determined by the stiffness (or spring) of the 1-1 support member 20A (or the 1-2 support member 20B) of FIG. 15A . constant) can be less than

For example, the diameter of the 1-1 support member 20A-2 may be smaller than or equal to the diameter of the 1-1 support member 20A (or the 1-2 support member 20B) of FIG. 15A . For example, as the diameter range of the 1-1 support member 20A-2, the diameter range of the 1-1 support member 20A of FIG. 15A may be applied or applied mutatis mutandis.

For example, a ratio of the diameter of the first-first support member 20A-2 to the diameter of the first-second support member 20C2 may be 1:1.15 to 1:2.4.

On the other hand, the first-second support member 20C2 may have a different rigidity (or spring constant) than the first-first support member 20A (or the 1-2 support member 20B) of FIG. 15A . For example, the stiffness (or spring constant) of the second-second support member 20C2 is higher than the stiffness (or spring constant) of the first-first support member 20A (or the 1-2 support member 20B) of FIG. 15A . can be large

For example, the diameter (or thickness) of the support member 20C2 of FIG. 18A may be larger than the diameter (or thickness) of the 1-1 support member 20A-2 of FIG. 18A . In another embodiment, the diameter (or thickness) of the support member 20C2 of FIG. 18A may be the same as the diameter (or thickness) of the 1-1 support member 20A-2 of FIG. 18A .

18B is a perspective view of a first support member 220 - 1E according to another exemplary embodiment.

Referring to FIG. 18B , the first support member 220 - 1E may include a 1-1 support member 20C3 and a 1-2 support member 20B1 .

For example, the diameter of the 1-1 support member 20C3 may be greater than the diameter B4 or B5 of the first connection part A4 (or the second connection part A5) of the 1-2 support member 20B1. there is.

For example, the ratio of the diameter of the 1-1 support member 20C3 to the diameter B4 or B5 of the first connection portion A4 (or A5) of the 1-2 support member 20B1 is 1:1.25 to 1: It can be 2.5.

The lens driving device according to the embodiment includes at least one of the first support members 220-1, 220-1A, 220-1B, 220-1C, 220-1D, and 220-1E described with reference to FIGS. 15A to 18B . can be implemented to

For the same performance, the first support members 200-1 to 220-1E described with reference to FIGS. 15A to 18B may be designed to have the same stiffness or spring constant. In this case, the spring constant may be a spring constant in the X-axis direction or the Y-axis direction.

The first supporting member 220-1, 220-1B, or 220-1C of FIGS. 15A, 17A, and 17B includes two supporting members having the same rigidity.

The support member 20B1 of the injection material of FIG. 17A has a longer lifespan than the support members 20A and 20B of the wire shape of FIG. 15A . Also, the supporting members 20C1 and 20C2 of FIG. 17B have a longer lifespan than the wire-shaped supporting members 20A and 20B of FIG. 15A .

The embodiment of FIG. 16A is compared with the embodiment of FIG. 15A as follows.

In order to exhibit the same performance, the stiffness (or spring constant) of the first support member 220-1 of 15a is the same as or similar to the stiffness (or spring constant) of the first support member 220-1A of FIG. 16A. should be designed

To this end, in the embodiment of FIG. 16A , the 1-1 support member 20A-1 may be designed to have a smaller rigidity than that of the 1-1 support member 20A of FIG. 15A , and in FIG. The first-second support member 20B1 may be designed to be greater than the rigidity of the first support member 20A.

Compared with the 1-1 support member 20A of FIG. 15A , the 1-1 support member 20A-1 of FIG. 16A can be bent better, and thus disconnection due to external impact can be suppressed or prevented. there is.

In addition, since the 1-2 support member 20B1 is made of an injection material, compared with the 1-1 support member of FIG. 15A , the lifespan is longer. Therefore, the lifespan of the support member 220-1A of FIG. 16A is shown in FIG. It may be longer than the life of the support member 220-1 of 15a.

For this reason, in the embodiment of FIGS. 18A and 18B , disconnection of the 1-1 support member 20A-2 may be suppressed or prevented, and the lifespan of the first support member 220-1D may be extended. .

In order to implement a high-quality image, the size (eg, weight) of the lens module mounted on the lens driving device may be increased. In the OIS VCM in which a lens module of high weight (eg, weight of 400 mg or more) is mounted, disconnection of the support member having a wire shape may occur. In particular, a fracture phenomenon may occur in a portion to which an upper end of the support member (eg, a wire) is soldered and a portion to which a lower end of the support member is soldered.

In the embodiment, in order to prevent or suppress the disconnection of the support member, two support members are disposed at one corner of the housing 140 as shown in FIGS. 15A to 20 .

A lens driving device having a structure in which only one wire is disposed in one corner of the housing (hereinafter referred to as a "comparative example"), in the embodiment, since two wires are disposed in at least one corner of the housing 140, the number of wires is reduced increased, thereby increasing the elastic force (or restoring force) of the support member.

Compared with the comparative example, in the embodiment, the elastic force (restoring force) of the support member is increased, and thus, an increase in the electromagnetic force due to the interaction between the OIS coil and the magnet is required for smooth and normal OIS driving.

In order to increase the electromagnetic force, the second coil 230 according to the embodiment may be in the form of a winding coil, a coil bundle, a coil body, or a coil block, thereby improving the electromagnetic force.

However, when the second coil of the winding coil is disposed on the circuit board, the separation distance between the second coil and the magnet (or the lower stopper of the housing) becomes too small, so that the collision between the second coil and the magnet (or the lower stopper of the housing) is prevented. This may cause damage to the second coil or a foreign object due to a collision.

In order to prevent damage and foreign matter due to the collision, in the embodiment, the second coil 230 may be disposed under the circuit board 250 . That is, the second coil 230 may be positioned between the lower surface of the circuit board 250 and the upper surface of the base 210 , and may be disposed in the grooves 213A, 213B, and 213C formed on the upper surface of the base 210 . there is.

FIG. 19 shows the first terminal 27Aa of the terminal unit and the pad Q11 of the circuit board 250 according to another embodiment, and FIG. 20 shows the first terminal 27Aa and the pad of the circuit board 250 of FIG. 19 . Solder 904 bonding Q11 is shown.

19 and 20 , the circuit board 250 may include at least one pad Q11 , and the at least one pad Q11 may be disposed on the top surface of the circuit board 250 . For example, the pad Q11 may be disposed on the upper surface of the body 252 of the circuit board 250 adjacent to the terminal part 253 of the circuit board 250 .

The first terminal 27Aa may be a modified example of the first terminal 27A of FIG. 14A . The description of the first terminal 27Aa may be applied or applied mutatis mutandis to at least one of the first to fourth terminals 27A to 27D.

The first terminal 27Aa may include a body 50A and an extension portion 50B2.

The extension portion 50B2 of the first terminal 27Aa may extend from the body 50A toward the pad Q11 of the circuit board 250, may be coupled to the pad Q11, and may be electrically connected to the first terminal 27Aa. .

At least a portion of the extension portion 50B2 may be disposed on the third surface 30C of the upper surface 30 of the base 210 . One end of the extension 50B2 may be connected to the body 50A, and the other end of the extension 50B2 may be connected to the pad Q11 of the circuit board 250 . The extension 50B2 and the pad Q11 of the circuit board 250 may be coupled to each other by solder or a conductive adhesive 904 .

The extension portion 50B2 may include at least one bent portion or a curved portion.

For example, the extension portion 50B2 may include a first portion 5B1 disposed on the upper surface of the circuit board 250 and a second portion 5B2 connecting the first portion 5A1 and the body 50A. .

For example, at least a portion of the second portion 5B2 may be disposed on the second stepped surface 31B of the base 210 . Also, for example, at least a portion of the first portion 5B1 may be disposed on the pad Q11 of the circuit board 250 . A first bent portion may be formed between one end of the second portion 5B2 and the body 50A, and a second bent portion may be formed between the other end of the second portion 5B2 and the first portion 5A1 .

The solder 904 or the conductive adhesive member may be disposed on a portion of the extension portion 50B2 (eg, the first portion 5B1 ) and the pad Q11 .

The description of the first terminal 27A of FIG. 14A , for example, the holes 51A and 51B and the coupling portions 81 and 82 may be applied or analogically applied to the first terminal of FIGS. 19 and 20 .

For example, the circuit board 250 may include a first pad Q11 coupled to or coupled to the first terminal 27Aa, and a second pad (not shown) coupled or coupled to the second terminal. In this case, the description of the first terminal Q11 may be applied or applied mutatis mutandis to the second terminal, and the description of the first pad Q11 may be applied or applied mutatis mutandis to the second pad. In another embodiment, one pad or three or more pads may be included, and the terminal unit may include one terminal or three or more terminals connected to one or more pads.

19 and 20 , a step may be formed between the outer surface of the side portion of the housing 140 and the outer surface of the corner portion. The reason for forming the step is to prevent damage from external impact by forming the step since the corner portion of the housing 140 has a thin thickness.

21A illustrates the arrangement of the magnet 130-1 disposed on the housing 140, the third coil unit 230-1 of the second coil 230 disposed on the base 210, and the circuit board 250 indicates. The description of FIG. 21A may also be applied to other magnets 130-1 and 130-2 and other coil units 230-2 and 230-3.

Referring to FIG. 21A , the lower surface 66A of the magnet (eg, 130 - 1 ) may protrude toward the circuit board 250 from the lower end 140A or the lower surface of the housing 140 . For example, the lower end 140A of the housing 140 may be the lowest portion of the housing 140 or the portion closest to the upper surface of the circuit board 250 .

Since the third coil unit 230-1 is located under the circuit board 250, the magnet 130-1 and the third coil unit 230-1 do not collide with each other, and the magnet 130 due to an external impact or the like. -1) and the upper surface of the circuit board 250 may collide, and in FIG. 21A , the circuit board 250 may absorb an impact with the magnet 130 - 1 .

In addition, compared with the comparative example, since the area of the collision point 48A or region of the upper surface of the magnet 130 - 1 and the circuit board 250 is increased, the impact may be dispersed, and thus the impact resistance is strong can have a structure.

As illustrated in FIG. 21A , the height of the upper surface of the protrusion 215A of the protrusion 215 - 1 may be lower than or equal to the height of the upper surface of the third coil unit 230 - 1 . Also, in the optical axis direction, the protrusion 215A of the protrusion 215-1 and the magnet 130-1 may overlap, and the width W1 of the magnet 130-1 may be greater than the width of the protrusion 215A. .

In an embodiment, in order to increase the length of the support member 220 in the optical axis direction, the lower end of the support member 220 may be coupled to the terminal portion 27 disposed on the base 210 .

21B shows a modified example 215A1 of the projection 215A of the protrusion 215-1 of FIG. 21A.

Referring to FIG. 21B , the height of the upper surface of the protrusion 215A1 may be higher than the height of the upper surface or upper end of the second coil 230 (or the third coil unit 230 - 1 ). For example, the protrusion 215A1 and the magnet 130 - 1 may overlap in the optical axis direction, and the width W1 of the magnet 130 - 1 may be greater than the width of the protrusion 215A1 .

Also, for example, at least a portion of the protrusion 215A1 may be exposed to the top surface of the circuit board 250 . For example, at least a portion of the upper surface of the protrusion 215A1 may be exposed as the upper surface of the circuit board 250 .

For example, the circuit board 250 may include an opening 33A for exposing at least a portion of a top surface of the protrusion 215A1 . For example, the opening 33A may be a hole or a groove. For example, the opening 33A may be a through hole penetrating the circuit board 250 in the optical axis direction.

At least a portion of the protrusion 215A1 may be disposed in the hole 33A of the circuit board 250 . For example, the upper surface of the protrusion 215A1 may be on the same plane as the upper surface of the circuit board 250 , but is not limited thereto. In another embodiment, the upper surface of the protrusion may be lower than the upper surface of the circuit board 250 and higher than the upper surface of the coil unit 230-1.

In FIG. 21B , the protrusion 215A1 exposed from the opening 33A of the circuit board 250 and the upper surface of the circuit board 250 may serve as a stopper for absorbing the impact caused by the collision with the magnet 130 - 1 .

For example, in FIGS. 21A and 21B , a circuit pattern or wiring may be formed in a region of the circuit board 250 corresponding to the protrusions 215A and 215A1 in the optical axis direction.

FIG. 21C shows another modified example 215A2 of the projection 215A of FIG. 21A .

Referring to FIG. 21C , at least a portion of the protrusion 215A2 may protrude from the top surface of the circuit board 250 toward the magnet 130 - 1 . For example, at least a portion of the protrusion 215A2 may pass through the circuit board 250 .

For example, the height of the upper surface of the protrusion 215A2 may be higher than the height of the upper surface of the circuit board 250 . For example, the separation distance in the optical axis direction between the protrusion 215A2 and the magnet 130 - 1 may be smaller than the separation distance in the optical axis direction between the upper surface of the circuit board 250 and the magnet 130 - 1 .

For example, the circuit board 250 may include an opening 33A through which at least a portion of the protrusion 215A2 passes. At least a portion of the protrusion 215A2 may be disposed in the hole 33A of the circuit board 250 .

In FIG. 21C , the protrusion 215A1 protruding from the opening 33A of the circuit board 250 may serve as a stopper for absorbing the impact caused by the collision with the magnet 130 - 1 .

For example, in FIG. 21C , a circuit pattern or wiring may not be formed in the region of the circuit board 250 corresponding to the protrusion 215A2 in the optical axis direction.

22 shows the coupling between the lower end of the first support member 220 - 1 and the first terminal 27A by the solder 902 . The description of FIG. 22 may also be applied or applied mutatis mutandis to the second to third supporting members 220-2 to 220-4 and the second to fourth terminals 27B to 27D.

Referring to FIG. 22 , the upper surface of the terminal part 27A may be positioned lower than the lower surface of the circuit board 250 .

For example, a step H5 may exist in the optical axis direction between the lower surface of the circuit board 250 and the upper surface of the first terminal 27A. The step H5 may be a height difference between the lower surface of the circuit board 250 and the upper surface of the first terminal 27A in the optical axis direction.

Compared with the comparative example in which the support member is coupled to the lower surface of the circuit board 250, in the embodiment, the length of the first support member 220-1 may be increased due to the step H5, and power consumption may be reduced. can

16A and 20 , the support members 20A, 20B, and 20C2 in the form of wires made of a conductive material and the support members 20B1 and 20B2 made of a non-conductive material may be provided together. Due to this, compared with the embodiment of FIG. 15A having two wires, the embodiment of FIGS. 16A and 20 can reinforce the elastic force while exhibiting similar AF and OIS configuration characteristics to those of FIG. 16A, and the lifespan of the support member can be increased, and stable OIS operation can be performed.

23A illustrates displacement and tilt characteristics of the AF movable part of the first case (CASE 1) and the second case (CASE 2).

The first case (CASE 1) relates to an embodiment having two wires (20A, 20B) of FIG. 15A at one corner of the housing 140 , and the second case (CASE2) is one of the housing 140 . It relates to an embodiment having the two support members 20A, 20B1 of FIG. 16A at a corner.

The X-axis of the graph of FIG. 23A may be a current value of the driving signal provided to the first coil 120, and the unit of the current value may be milliampere [mA]. The Y-axis may be the displacement of the AF moving part, and the unit may be micrometers [㎛]. For example, the origin may be an initial position of the AF movable unit. Further, each of 501A and 501B may be a displacement of the AF movable part, and 502A, 502B may be a tilt of the AF movable part in the Z-axis direction.

Referring to FIG. 23A , displacement and tilt characteristics of the AF movable parts of the first case CASE1 and the second case CASE2 may be similar.

23B shows the displacement and tilt characteristics of the OIS movable part of the first case (CASE 1) and the second case (CASE 2).

The X-axis of the graph of FIG. 23B may be a current value of a driving signal provided to the second coil (eg, the second coil unit 230-1), and the unit of the current value may be milliamperes [mA]. The Y-axis may be a displacement of the OIS movable part (eg, displacement in the X-axis direction), and the unit may be micrometers [㎛]. Each of 503A and 503B may be a displacement of the OIS movable part, and 504A, 504B may be a tilt of the OIS movable part in the Z-axis direction.

Referring to FIG. 23B , displacement and tilt characteristics of the OIS movable parts of the first case CASE1 and the second case CASE2 may be similar.

24 shows frequency response characteristics for OIS driving of the first case (CASE 1) and the second case (CASE 2). In FIG. 24, the X-axis represents frequency, and the Y-axis represents gain and phase. The frequency response characteristic may be measured using a Frequency Response Analyzer (FRA).

f1 may be a frequency response characteristic related to the gain of the first case CASE1, and f2 may be a frequency response characteristic related to the gain of the second case CASE2. g1 may be a frequency response characteristic with respect to the phase of the first case CASE1, and g2 may be a frequency response characteristic with respect to the phase of the second case CASE 2 .

The frequency response characteristic with respect to the gain of the first case CASE1 may be similar to the frequency response characteristic with respect to the gain of the second case CASE2, and the frequency response characteristic with respect to the phase of the first case CASE1 is the frequency response characteristic of the second case It can be similar to the frequency response characteristic with respect to the phase of (CASE2).

For example, the first resonant frequency f11 of the first case CASE1 and the first resonant frequency f12 of the second case CASE2 may be similar. Also, for example, the second resonant frequency f21 of the first case CASE1 and the second resonant frequency f22 of the second case CASE2 may be similar. For example, the first resonant frequency f12 of the second case CASE2 may be greater than the first resonant frequency f11 of the first case CASE1, and the second resonant frequency f12 of the second case CASE2 (f22, 250Hz) may be less than the second resonant frequency f21, 270Hz of the first case CASE1.

For example, each of the first resonant frequency f11 of the first case CASE1 and the first resonant frequency f12 of the second case CASE2 may be 40 [Hz] to 70 [Hz]. Also, for example, each of the second resonant frequency f21 of the first case CASE1 and the second resonant frequency f22 of the second case CASE2 may be 240 [Hz] to 300 [Hz].

Meanwhile, the lens driving apparatus according to the above-described embodiment may be used in various fields, for example, a camera module or an optical device.

In addition, the lens driving device 100 according to the embodiment forms an image of an object in space using reflection, refraction, absorption, interference, diffraction, etc., which are characteristics of light, and aims to increase the visual power of the eye, or It may be included in an optical instrument for the purpose of recording and reproducing an image by means of an optical instrument, or for optical measurement, propagation or transmission of an image. For example, the optical device according to the embodiment is a mobile phone, a mobile phone, a smart phone, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP) ), navigation, etc., but is not limited thereto, and any device for taking an image or photo is possible.

25 is an exploded perspective view of the camera module 200 according to the embodiment.

Referring to FIG. 25 , the camera module 200 may include a lens barrel 400 , a lens driving device 100 , and an image sensor 810 .

For example, the camera module 200 may further include a filter 610 and a second holder 800 . Alternatively, for example, the camera module 200 may further include a first holder 600 . Also, the camera module 200 may further include a controller 830 . Also, for example, the camera module 200 may further include at least one of an adhesive member 612 , a motion sensor 820 , and a connector 840 .

The lens barrel 400 may be mounted on the bobbin 110 of the lens driving device 100 .

The first holder 600 may be disposed under the base 210 of the lens driving device 100 . The filter 610 is mounted on the first holder 600 , and the first holder 600 may include a protrusion 500 on which the filter 610 is mounted.

The adhesive member 612 may couple or attach the base 210 of the lens driving device 100 to the first holder 600 . The adhesive member 710 may serve to prevent foreign substances from being introduced into the lens driving device 100 in addition to the above-described bonding role.

For example, the adhesive member 612 may be an epoxy, a thermosetting adhesive, or an ultraviolet curable adhesive.

The filter 610 may serve to block light of a specific frequency band in light passing through the lens barrel 400 from being incident on the image sensor 810 . The filter 610 may be an infrared cut filter, but is not limited thereto. In this case, the filter 610 may be disposed to be parallel to the x-y plane.

An opening may be formed in a portion of the first holder 600 on which the filter 610 is mounted so that light passing through the filter 610 may be incident on the image sensor 810 .

The second holder 800 may be disposed under the first holder 600 , and the image sensor 810 may be mounted on the second holder 600 . The image sensor 810 is a region on which the light passing through the filter 610 is incident to form an image included in the light.

The second holder 800 may include various circuits, elements, controllers, etc. to convert an image formed on the image sensor 810 into an electrical signal and transmit it to an external device.

The second holder 800 may be implemented as a circuit board on which an image sensor may be mounted, a circuit pattern may be formed, and various elements may be coupled thereto.

The first holder 600 may be expressed by replacing “holder” or “sensor base”, and the second holder 800 may be expressed by replacing “board” or “circuit board”.

The image sensor 810 may receive an image included in light incident through the lens driving device 100 and convert the received image into an electrical signal.

The filter 610 and the image sensor 810 may be spaced apart to face each other in the first direction.

The motion sensor 820 may be mounted on the second holder 800 , and may be electrically connected to the controller 830 through a circuit pattern provided on the second holder 800 .

The motion sensor 820 outputs rotational angular velocity information due to the movement of the camera module 200 . The motion sensor 820 may be implemented as a 2-axis or 3-axis gyro sensor or an angular velocity sensor.

The controller 830 is mounted on the second holder 800 , and may be electrically connected to the first position sensor 170 and the second position sensor 240 of the lens driving device 100 . Also, the controller 830 may be electrically connected to the first coil 170 and the second coil 230 .

For example, the second holder 800 may be electrically connected to the circuit board 250 of the lens driving device 100 , and the controller 830 mounted on the second holder 800 may The first position sensor 170 and the second position sensor 240 may be electrically connected. Also, the controller 830 may be electrically connected to the first coil 120 and the second coil 230 through the circuit boards 250 and 800 .

The controller 830 may provide a driving signal to each of the first position sensor 170 , the first sensor 240A, and the second sensor 240A.

For example, in another embodiment, the controller 830 may provide a power signal to at least one of the first position sensor 170 , the first sensor 240A, and the second sensor 240A, and a clock for I2C communication. A signal and a data signal may be transmitted/received to at least one of the first position sensor 170 , the first sensor 240A, and the second sensor 240B.

Also, the controller 830 may perform a feedback auto-focusing operation on the AF moving unit of the lens driving apparatus based on the output provided from the first position sensor 170 .

Also, the controller 830 may perform a handshake correction operation on the OIS movable unit of the lens driving apparatus 100 based on the output of the first sensor 240A and the output of the second sensor 240B.

The connector 840 is electrically connected to the second holder 800 and may include a port for electrically connecting to an external device.

26 is a perspective view of the camera module 1000 according to another embodiment.

Referring to FIG. 26 , the camera module 1000 includes a first camera module 100-1 including a first lens driving device and a second camera module 100-2 including a second lens driving device. It may be a dual camera module.

For example, each of the first camera module 100-1 and the second camera module 100-2 may be any one of a camera module for Auto Focus (AF) and a camera module for Optical Image Stabilizer (OIS).

A camera module for AF refers to a thing capable of performing only an autofocus function, and an OIS camera module refers to a thing capable of performing an autofocus function and an OIS (Optical Image Stabilizer) function.

For example, the first lens driving device may be the embodiment 100 shown in FIG. 1 , and the second lens driving device may be the embodiment shown in FIG. 1 or a lens driving device for AF.

The camera module 1000 may further include a circuit board 1100 for mounting the first camera module 100-1 and the second camera module 100-2. In FIG. 26 , the first camera module 100 - 1 and the second camera module 100 - 2 are arranged side by side on one circuit board 1100 , but the present invention is not limited thereto. In another embodiment, the circuit board 1100 may include a first circuit board and a second circuit board separated from each other, and the first camera module 100 - 1 may be disposed on the first circuit board, and the second The camera module may be disposed on the second circuit board.

27 is a perspective view of a portable terminal 200A according to an embodiment, and FIG. 28 is a configuration diagram of the portable terminal shown in FIG. 27 .

27 and 28, the portable terminal 200A (hereinafter referred to as "terminal") has a body 850, a wireless communication unit 710, an A/V input unit 720, a sensing unit 740, and an input/ It may include an output unit 750 , a memory unit 760 , an interface unit 770 , a control unit 780 , and a power supply unit 790 .

The body 850 shown in FIG. 27 has a bar shape, but is not limited thereto, and a slide type, a folder type, and a swing type in which two or more sub-bodies are coupled to be movable relative to each other. , and may have various structures such as a swivel type.

The body 850 may include a case (casing, housing, cover, etc.) forming an exterior. For example, the body 850 may be divided into a front case 851 and a rear case 852 . Various electronic components of the terminal may be embedded in a space formed between the front case 851 and the rear case 852 .

The wireless communication unit 710 may include one or more modules that enable wireless communication between the terminal 200A and the wireless communication system or between the terminal 200A and the network in which the terminal 200A is located. For example, the wireless communication unit 710 may include a broadcast reception module 711 , a mobile communication module 712 , a wireless Internet module 713 , a short-range communication module 714 , and a location information module 715 . there is.

The A/V (Audio/Video) input unit 720 is for inputting an audio signal or a video signal, and may include a camera 721 , a microphone 722 , and the like.

The camera 721 may be a camera including the camera module 200 or 1000 according to an embodiment.

The sensing unit 740 detects the current state of the terminal 200A, such as the opening/closing state of the terminal 200A, the position of the terminal 200A, the presence or absence of user contact, the orientation of the terminal 200A, acceleration/deceleration of the terminal 200A, etc. It is possible to generate a sensing signal for controlling the operation of the terminal 200A by sensing. For example, when the terminal 200A is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. In addition, it is responsible for sensing functions related to whether the power supply unit 790 is supplied with power and whether the interface unit 770 is coupled to an external device.

The input/output unit 750 is for generating input or output related to sight, hearing, or touch. The input/output unit 750 may generate input data for operation control of the terminal 200A, and may also display information processed by the terminal 200A.

The input/output unit 750 may include a keypad unit 730 , a display module 751 , a sound output module 752 , and a touch screen panel 753 . The keypad unit 730 may generate input data in response to a keypad input.

The display module 751 may include a plurality of pixels whose color changes according to an electrical signal. For example, the display module 751 is a liquid crystal display (liquid crystal display), a thin film transistor-liquid crystal display (thin film transistor-liquid crystal display), an organic light-emitting diode (organic light-emitting diode), a flexible display (flexible display), three-dimensional It may include at least one of a display (3D display).

The sound output module 752 outputs audio data received from the wireless communication unit 710 in a call signal reception, a call mode, a recording mode, a voice recognition mode, or a broadcast reception mode, or stored in the memory unit 760 . Audio data can be output.

The touch screen panel 753 may convert a change in capacitance generated due to a user's touch on a specific area of the touch screen into an electrical input signal.

The memory unit 760 may store a program for processing and control of the controller 780, and stores input/output data (eg, phone book, message, audio, still image, photo, video, etc.) Can be temporarily saved. For example, the memory unit 760 may store an image captured by the camera 721 , for example, a photo or a moving picture.

The interface unit 770 serves as a passage for connecting to an external device connected to the terminal 200A. The interface unit 770 receives data from an external device, receives power and transmits it to each component inside the terminal 200A, or transmits data inside the terminal 200A to an external device. For example, the interface unit 770 may include a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port for connecting a device having an identification module, and an audio I/O (Input/O) Output) port, video I/O (Input/Output) port, and may include an earphone port, and the like.

The controller 780 may control the overall operation of the terminal 200A. For example, the controller 780 may perform related control and processing for voice calls, data communications, video calls, and the like.

The controller 780 may include a multimedia module 781 for playing multimedia. The multimedia module 781 may be implemented within the controller 180 or may be implemented separately from the controller 780 .

The controller 780 may perform a pattern recognition process capable of recognizing a handwriting input or a drawing input performed on the touch screen as characters and images, respectively.

Features, structures, effects, etc. described in the above embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, features, structures, effects, etc. illustrated in each embodiment can be combined or modified for other embodiments by a person skilled in the art to which the embodiments belong. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present invention.

Claims (37)

Base;
a circuit board disposed on the base;
a housing disposed on the base;
a bobbin disposed within the housing;
a magnet disposed on the housing;
a first coil disposed on the bobbin and facing the magnet; and
and a second coil disposed between the circuit board and the base. According to claim 1,
The second coil is coupled to a lower surface of the circuit board and is electrically connected to the circuit board. 3. The method of claim 2,
The circuit board includes a pad connected to the second coil. According to claim 1,
The base is a lens driving device in which a groove in which the second coil is disposed is formed on an upper surface. 5. The method of claim 4,
The base includes a protrusion on the upper surface,
The second coil has a hollow in the middle, and the protrusion of the base is disposed in the hollow of the second coil. 6. The method of claim 5,
A height of the protrusion is equal to or lower than an upper end of the second coil. According to claim 1,
The second coil is a lens driving device wound by 40 turns or more. 5. The method of claim 4,
A depth of the groove of the base is greater than or equal to a length of the second coil in an optical axis direction. 6. The method of claim 5,
A height of the protrusion is higher than a height of an upper end of the second coil. According to claim 1,
an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing; and
and a support member having one end coupled to the upper elastic member and the other end electrically connected to the circuit board. 11. The method of claim 10,
The support member includes a first support member and a second support member disposed at at least one corner of the housing. 12. The method of claim 11,
The first supporting member and the second supporting member are the same lens driving device. 11. The method of claim 10,
It is coupled to the base and includes a terminal portion positioned below the lower surface of the circuit board,
The terminal part includes a body to which the other end of the support member is coupled, and an extension part extending from the body to be coupled to the circuit board. 14. The method of claim 13,
The body includes a coupling area, a first hole formed in the coupling area and through which the other end of the support member passes, and at least one second hole formed around the coupling area. 14. The method of claim 13,
and the circuit board includes a pad electrically connected to the extension part of the terminal part. 12. The method of claim 11,
Each of the first and second support members is a wire made of a conductive material. 12. The method of claim 11,
The first support member is a wire made of a conductive material,
The second support member is made of a non-conductive material, and the rigidity of the second support member is greater than that of the first support member. According to claim 1,
a sensing magnet disposed on the bobbin; and
and a first position sensor facing the sensing magnet in the optical axis direction and disposed between the base and the circuit board. According to claim 1,
and a second position sensor facing the magnet in the optical axis direction and disposed between the base and the circuit board. 19. The method of claim 18,
A lens driving device in which a groove for arranging the first position sensor is formed on an upper surface of the base. According to claim 1,
the magnet comprises a first magnet disposed on a first side of the housing, a second magnet disposed on a second side of the housing, and a third magnet disposed on a third side of the housing;
The first coil includes a first coil unit facing the first magnet in a direction perpendicular to the optical axis direction and a second coil unit facing the second magnet in a direction perpendicular to the optical axis direction,
The second coil may include a third coil unit facing the first magnet in the optical axis direction, a fourth coil unit facing the second magnet in the optical axis direction, and a third coil unit facing the third magnet in the optical axis direction. 5 coil units,
and a dummy member disposed on a fourth side of the housing. Base;
a circuit board disposed on the base;
a housing disposed on the base;
a bobbin disposed within the housing;
a first coil and a magnet for moving the bobbin; and
and a second coil corresponding to the magnet in the optical axis direction,
The base includes a first area in which the second coil is disposed,
The bottom surface of the first area is at a position lower than the top surface of the base,
At least a portion of the second coil is disposed in the first region. 23. The method of claim 22,
The circuit board is disposed on the first area, and a lower surface of the circuit board is spaced apart from the bottom surface of the first area. 23. The method of claim 22,
The first region includes a protruding region that protrudes higher than the bottom surface of the first region. 23. The method of claim 22,
The first area is a recess, and the recess includes areas open in two directions perpendicular to each other. 23. The method of claim 22,
an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing; and
and a support member having one end coupled to the upper elastic member and the other end electrically connected to the circuit board. Base;
a housing disposed on the base;
a bobbin disposed within the housing;
a first coil and a magnet for moving the bobbin; and
and a second coil corresponding to the magnet and in the optical axis direction and having a hollow formed therein;
The base includes a first region in which the second coil is disposed, and the first region includes a protrusion disposed in the hollow of the second coil. Base;
a housing disposed on the base;
a bobbin disposed within the housing;
a first coil and a magnet for moving the bobbin; and
and a second coil corresponding to the magnet in the optical axis direction,
The second coil is disposed on the base and coupled to the base,
The number of turns of the second coil is 40 turns or more. Base;
a housing disposed on the base;
a bobbin disposed within the housing;
a first coil and a magnet for moving the bobbin; and
an upper elastic member coupled to the bobbin and the housing;
a second coil disposed on the base to correspond to the magnet in an optical axis direction; and
One end includes a support member coupled to the upper elastic member,
The support member comprises a first wire and a second wire disposed at at least one corner of the housing,
The first and second wires each have a diameter of 40 micrometers to 100 micrometers,
The diameter of the first wire and the diameter of the second wire are the same lens driving device. housing;
a bobbin disposed within the housing;
an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing;
a magnet disposed on the housing;
a first coil disposed on the bobbin and facing the magnet;
a circuit board disposed under the housing;
a support member electrically connecting the circuit board and the upper elastic member;
a base disposed under the circuit board; and
A second coil facing the magnet in the optical axis direction,
the support member comprises a first support member and a second support member disposed at at least one corner of the housing;
The first support member is a wire made of a conductive material, and the second support member is a non-conductive material. 31. The method of claim 30,
The rigidity of the second supporting member is greater than that of the first supporting member. 31. The method of claim 30,
The second coil is disposed between the circuit board and an upper surface of the base. 32. The method of claim 31,
The base includes a groove for accommodating the second coil. 34. The method of claim 33,
A lens driving device in which a protrusion for coupling with the second coil is formed in the groove of the base. 31. The method of claim 30,
It is coupled to the base and is located below the lower surface of the circuit board, and comprises a terminal part electrically connected to the circuit board,
One end of each of the first and second support members is coupled to the upper elastic member, and the other end of each of the first and second support members is coupled to the terminal unit. 31. The method of claim 30,
a sensing magnet disposed on the bobbin;
a first position sensor facing the sensing magnet in the optical axis direction and disposed between the base and the circuit board;
and a second position sensor facing the magnet in the optical axis direction and disposed between the base and the circuit board. 31. The method of claim 30,
the magnet comprises a first magnet disposed on a first side of the housing, a second magnet disposed on a second side of the housing, and a third magnet disposed on a third side of the housing;
The first coil includes a first coil unit facing the first magnet in a direction perpendicular to the optical axis direction and a second coil unit facing the second magnet in a direction perpendicular to the optical axis direction,
The second coil may include a third coil unit facing the first magnet in the optical axis direction, a fourth coil unit facing the second magnet in the optical axis direction, and a third coil unit facing the third magnet in the optical axis direction. 5 coil units,
and a dummy member disposed on a fourth side of the housing.

Images