KR20210016950A - A lens moving apparatus, camera module and optical instrument including the same - Google Patents

Abstract

The present invention relates to a lens driving device capable of reducing current consumption, and a camera module and an optical device including the same. According to an embodiment of the present invention, the lens driving device comprises: a substrate; a housing disposed on the substrate; a bobbin disposed in the housing; a sensing coil disposed on the bobbin; a first magnet, a second magnet, a third magnet, and a dummy member disposed on different sides of the housing; a first coil including a first coil unit corresponding to the first magnet and a second coil unit corresponding to the second magnet; and a first position sensor disposed on the substrate and corresponding to the sensing coil. The first magnet and the second magnet are located opposite to each other and the third magnet and the dummy member are positioned opposite to each other. A driving signal is provided to the sensing coil and the first position sensor detects the strength of the magnetic field of the sensing coil and outputs an output signal.

Description

Lens driving device, camera module and optical device including the same {A LENS MOVING APPARATUS, CAMERA MODULE AND OPTICAL INSTRUMENT INCLUDING THE SAME}

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

Camera modules for ultra-compact and low power consumption are difficult to apply the technology of a voice coil motor (VCM) used in a conventional camera module, and related studies have been actively conducted.

In the case of a camera module mounted on a small electronic product such as a smartphone, the camera module may be frequently shocked during use, and the camera module may be slightly shaken due to the user's hand shake during shooting. In view of this point, in recent years, a technology for additionally installing a camera module for preventing hand shake has been developed.

The embodiment reduces magnetic field interference between magnets included in two adjacent lens driving devices mounted on a dual camera module, and balances electromagnetic force in the X-axis direction and the electromagnetic force in the Y-axis direction for performing the OIS function. It provides a lens driving device capable of matching and reducing the weight of the OIS movable part to reduce current consumption, and a camera module and an optical device including the same.

The lens driving apparatus according to the embodiment includes a substrate; A housing disposed on the substrate; A bobbin disposed in the housing; A sensing coil disposed on the bobbin; A first magnet, a second magnet, a third magnet, and a dummy member disposed on different sides of the housing; A first coil including a first coil unit corresponding to the first magnet and a second coil unit corresponding to the second magnet; And a first position sensor disposed on the substrate and corresponding to the sensing coil, wherein the first magnet and the second magnet are located opposite to each other, the third magnet and the dummy member are located opposite to each other, and the A driving signal is provided to the sensing coil, and the first position sensor senses the strength of the magnetic field of the sensing coil and outputs an output signal.

The sensing coil may overlap the first position sensor in the optical axis direction.

The bobbin includes a protrusion protruding from an outer surface, and the sensing coil may be coupled to the protrusion of the bobbin.

The sensing coil has a ring shape including a central hole, and the central hole of the sensing coil may be parallel to an optical axis.

The sensing coil may be coupled to a lower surface of the protrusion.

The dummy member may include a first dummy and a second dummy spaced apart from each other, and at least a portion of the sensing coil may be disposed between the first dummy and the second dummy.

The lens driving device may include a second coil including third to fifth coil units corresponding to the first to third magnets in an optical axis direction; And a second position sensor disposed on the substrate and including a first sensor corresponding to the first magnet and a second sensor corresponding to the third magnet.

The sensing coil may not overlap with the third to fifth coil units in the optical axis direction.

The first position sensor may be a Hall sensor, a driver IC including a Hall sensor, or a Tunnel Magnetoresistance (TMR) sensor.

The lens driving device may include an elastic member coupled to the bobbin and the housing; And a support member connecting the elastic member and the substrate.

A lens driving device according to another embodiment includes a fixing unit; An AF movable part including a bobbin, and an OIS movable part including a housing; A first elastic part supporting the AF movable part with respect to the housing; A second elastic part supporting the OIS movable part with respect to the fixed part; An AF coil disposed on the bobbin; A sensing coil disposed on the bobbin; A first magnet and a second magnet disposed on the housing and positioned opposite to each other; A third magnet and a dummy member disposed in the housing and positioned opposite to each other; First to third OIS coil units corresponding to the first to third magnets in an optical axis direction; An AF position sensor disposed on the fixing unit and corresponding to the sensing coil in the optical axis direction; And a first OIS sensor corresponding to the first magnet and a second OIS sensor corresponding to the third magnet, and a driving signal is provided to the sensing coil, and the AF position sensor The strength of the magnetic field of the sensing coil may be sensed and an output signal may be output.

The embodiment reduces magnetic field interference between magnets included in two adjacent lens driving devices mounted on a dual camera module, and balances electromagnetic force in the X-axis direction and the electromagnetic force in the Y-axis direction for performing the OIS function. And reduce the current consumption by reducing the weight of the OIS moving part.

1 is an exploded view of a lens driving apparatus according to an embodiment.
2 is a perspective view of a lens driving device excluding a cover member.
3A is an exploded perspective view of a bobbin, a first coil unit, a second coil unit, and a sensing coil.
3B is a combined perspective view of a bobbin, a first coil unit, a second coil unit, and a sensing coil.
4A is an exploded perspective view of a housing, first to third magnets, and a dummy member.
4B is a perspective view of a housing, first to third magnets, and a dummy member.
5 is a perspective view of an upper elastic member.
6 is a view for explaining an electrical connection relationship between an upper elastic member, a support member, and a circuit board.
7 is a bottom view of first to third magnets, a dummy member, a housing, a lower elastic member, and a sensing coil.
8 is an exploded perspective view of a second coil, a circuit board, and a base.
9 is a cross-sectional view of the lens driving device in the AB direction of FIG. 2.
10 is a cross-sectional view of the lens driving device in the CD direction of FIG. 2.
11 is a cross-sectional view of the lens driving device in the EF direction of FIG. 2.
12 is a perspective view illustrating a first position sensor, a sensing coil, first to third magnets, a dummy member, and third to fifth coil units.
13 is a perspective view of a first position sensor, a sensing coil, first to third magnets, a dummy member, third to fifth coil units, and first and second sensors.
14 is a bottom view of the configurations shown in FIG. 12.
15A shows an arrangement of a sensing coil and a first position sensor for simulation.
FIG. 15B shows a change in the position of the sensing coil of FIG. 15A according to the movement of the AF movable part in the optical axis direction.
15C illustrates a change in the intensity of a magnetic field of a sensing coil sensed by the first position sensor according to a position change of the sensing coil of FIG. 15B.
16 shows another embodiment of a lens driving device.
17 is an exploded perspective view of a camera module according to an embodiment.
18 is a perspective view of a camera module according to another embodiment.
19A shows an embodiment of the dual camera module of FIG. 18.
19B shows another embodiment of the dual camera module of FIG. 18.
20A shows another embodiment of the dual camera module of FIG. 18.
20B shows another embodiment of the dual camera module of FIG. 18.
20C shows another embodiment of the dual camera module of FIG. 18.
21 is a perspective view of a portable terminal according to an embodiment.
22 is a block diagram of the portable terminal shown in FIG. 21.

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

However, the technical idea of the present invention is not limited to some embodiments to be described, but may be implemented in various different forms, and within the scope of the technical idea of the present invention, one or more of the constituent elements may be selectively selected between the embodiments. It can be combined with and substituted for use.

In addition, 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 technical field to which the present invention belongs, unless explicitly defined and described. It can be interpreted as, and generally used terms such as terms defined in a dictionary may be interpreted in consideration of the meaning of the context of the related technology.

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

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

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

Hereinafter, the lens driving device may be referred to as a lens driving unit, a voice coil motor (VCM), an actuator, or a lens moving device, and the term "coil" is referred to as a coil unit. The term "elastic member" may be replaced with an elastic unit or a spring.

In addition, in the following description, "terminal" may be represented by replacing it with a pad, an electrode, a conductive layer, or a bonding part.

For convenience of description, the lens driving apparatus 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 drawing, the x-axis and y-axis mean a direction perpendicular to the z-axis, which is the optical axis direction, the z-axis direction, which is the optical axis (OA) direction, is called the'first direction', and the x-axis direction is called the'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'image stabilization function'. Here, the image stabilization function refers to preventing that the outline of the captured image is not formed clearly due to vibration caused by the user's hand shake when capturing a still image.

1 is an exploded view of a lens driving apparatus 100 according to an exemplary embodiment, and FIG. 2 is a perspective view of a lens driving apparatus 100 excluding a cover member 300.

1 and 2, the lens driving device 100 includes a bobbin 110, a first coil 120, a first magnet 130-1, a second magnet 130-2, and a third magnet ( 130-3), dummy member 135, housing 140, upper elastic member 150, lower elastic member 160, first position sensor 170, sensing coil 180, and second coil 230 ) Can be included.

The lens driving apparatus 100 may further include at least one of a base 210, a circuit board 250, and a support member 220.

In addition, the lens driving apparatus 100 may further include a balancing coil (not shown) for attenuating the weight of the sensing coil 180 or the influence of the magnetic field.

In addition, the lens driving apparatus 100 may further include a second position sensor 240 to drive an OIS (Optical Image Stabilizer) feedback. In addition, the lens driving device 100 may further include a cover member 300.

The embodiment may provide 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.

In addition, 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, according to the embodiment, the number of magnets for OIS and the size of the magnets for OIS are reduced, thereby reducing the weight of the OIS movable unit, thereby reducing current consumption.

First, the bobbin 110 will be described.

The bobbin 110 is disposed inside the housing 140 and is in the direction of the optical axis (OA) by an electromagnetic interaction between the first coil 120 and the first and second magnets 130-1 and 130-2. Alternatively, it may be moved in the first direction (eg, the Z-axis direction).

3A is an exploded perspective view of the bobbin 110, the first coil unit 120-1, the second coil unit 120-2, and the sensing coil 180, and FIG. 3B is the bobbin 110 and the first coil. It is a combined perspective view of the unit 120-1, the second coil unit 120-2, and the sensing coil 180.

3A and 3B, the bobbin 110 may have an opening for mounting a lens or a lens barrel. For example, the opening of the bobbin 110 may be in the form of a through hole penetrating through the bobbin 110, and the shape of the opening of the bobbin 110 may be circular, elliptical, or polygonal, but is not limited thereto.

The lens may be directly mounted to the opening of the bobbin 110, but is not limited thereto. In another embodiment, a lens barrel for mounting or coupling at least one lens may be coupled or mounted to the opening of the bobbin 110. have. The lens or lens barrel may be coupled to the inner peripheral surface of the bobbin 110 in various ways.

The bobbin 110 may include a plurality of side portions spaced apart from each other, and the plurality of side portions may be connected to each other.

For example, the bobbin 110 includes side portions corresponding to the side portions 141-1 to 141-4 of the housing 140 and corner portions corresponding to the corner portions 142-1 to 142-4 of the housing 140 (Or corners).

The first coil unit 120-1 and the second coil unit 120-2 are disposed, mounted, or seated in the two sides of the bobbin 110 that are opposite to each other. ) Can be provided.

For example, the seating groove 201 may be formed on the first and second outer surfaces of the bobbin 110 that are opposite to each other. The mounting groove 201 may have a structure that is recessed from the first and second outer surfaces of the bobbin 110, and matches the shape of the first coil unit 120-1 and the second coil unit 120-2. It can have a shape.

Each of the first and second outer surfaces opposite to each other of the bobbin 110 has a protrusion 25 for being coupled to a corresponding one of the first and second coil units 120-1 and 120-2. Can be provided.

For example, a first protrusion for mounting or winding the first coil unit 120-1 may be formed on a first outer surface of the bobbin 110, and a second coil unit may be formed on a second outer surface of the bobbin 110. A second protrusion for mounting or winding 120-2 may be formed. For example, the protrusion 25 may protrude from the bottom surface of the seating groove 201.

A protrusion 116 may be provided on any other outer surface (eg, a fourth outer surface) of the bobbin 110 other than the first and second outer surfaces of the bobbin 110. A protrusion 26 for mounting or arranging the sensing coil 180 may be formed on the protrusion 116.

The protrusion 116 may protrude from an outer surface (eg, a fourth outer surface) of the side of the bobbin 110 in a direction perpendicular to the optical axis. For example, the protrusion 116 may pass through the center of the opening of the bobbin 110 and protrude in a direction parallel to a straight line perpendicular to the optical axis direction.

For example, the protrusion 26 may protrude downward from the lower surface of the protrusion 116 or in a direction toward the first position sensor 170.

In addition, the bobbin 110 may further include a protrusion formed on another side (or third outer surface) of the bobbin 110 for mounting or disposition of the balancing coil. In this case, the third outer surface of the bobbin 110 may be an outer surface located on the opposite side of the fourth outer surface of the bobbin 110.

Protrusions 111 may be formed at corners of the bobbin 110. The protrusion 111 of the bobbin 110 passes through the center of the opening of the bobbin 110 and may 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 around the optical axis. It is possible to inhibit or prevent movement or rotation beyond the range.

A first escape groove 122a for avoiding spatial interference with the first frame connection 153 of the upper elastic member 150 may be provided on the upper surface of the bobbin 110, and the lower elasticity A second escape groove 122b for avoiding spatial interference with the second frame connecting portion 163 of the member 150 may be provided. For example, the first and second escape grooves 122a and 122b may be formed at the corners of the bobbin 110, but are not limited thereto, and may be formed at the side of the bobbin 110 in other embodiments.

Although not shown in FIGS. 3A and 3B, the bobbin 110 may include a first stopper protruding from an upper surface and a second stopper protruding from a lower surface. When the bobbin 110 moves in the first direction for the auto-focusing function, the first and second stoppers of the bobbin 110 move even if the bobbin 110 moves beyond a prescribed range due to an external impact or the like, the bobbin 110 The upper surface of the cover member 300 can be prevented from directly colliding with the inside of the upper plate, and the lower surface of the bobbin 110 is on the base 210, the second coil 230, or/and the circuit board 250 Direct collision can be avoided.

A first coupling portion for coupling and fixing to the upper elastic member 150 may be provided on the upper surface of the bobbin 110, and a second coupling for coupling and fixing to the lower elastic member 160 on the lower surface of the bobbin 110 Additional can be provided.

For example, in FIGS. 3A and 3B, the first and second coupling portions of the bobbin 110 may have a flat shape, but are not limited thereto, and in other embodiments, the first and second coupling portions of the bobbin 110 are It may have a groove or protrusion shape.

A screw wire for coupling with a lens or a lens barrel may be provided on the inner circumferential surface of the bobbin 110. While the bobbin 110 is fixed by a jig or the like, a thread can be formed on the inner circumferential surface of the bobbin 110, and a jig fixing groove 19 may be provided on the upper surface of the bobbin 110. have.

Next, the first coil 120 will be described.

The first coil 120 includes a first coil unit 120-1 and a second coil unit 120-2 disposed on two sides of the bobbin 110 that are opposite to each other.

Here, the “coil unit” may be represented by replacing it with a coil unit, a coil block, or a coil ring.

For example, the first coil unit 120-1 may be disposed on the first side of the bobbin 110 corresponding to the first side part 141-1 of the housing 140, and the second coil unit 120-2 ) May be disposed on the second side of the bobbin 110 corresponding to the second side portion 141-2 of the housing 140.

The first and second coil units 120-1 and 120-2 may be disposed in the seating groove 201 of the bobbin 110. The first and second coil units 120-1 and 120-2 may be coupled to the protrusion 25 of the bobbin 110 or may be wound around the protrusion 25.

Each of the first coil unit 120-1 and the second coil unit 120-2 may include at least one of a circular shape, an elliptical shape, or a closed curve shape. For example, each of the first coil unit 120-1 and the second coil unit 120-2 may have a coil ring shape that passes through the center of the opening of the bobbin 110 and is wound around an axis perpendicular to the optical axis.

For example, each of the first and second coil units 120-1 and 120-2 may include a central hole, and the central hole includes the first and second coil units 120-1 and 120-2. The outer surface of the bobbin 110 to be disposed may be faced, and may be combined with the protrusion 25.

For example, each of the first and second coil units 120-1 and 120-2 has a first part 3a, a second part 3b disposed under the first part 3a, and a first part 3a. ) And the second part 3b may include a connection part 3c connecting each other, and a closed curve may be formed by the first to third parts 3a to 3c.

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

The first coil 120 is disposed between the first coil unit 120-1 and the second coil unit 120-2, and the first coil unit 120-1 and the second coil unit 120-2 It may include a connection unit (not shown) or a connection coil for connecting to each other.

One end of the connection part of the first coil 120 may be connected to one end of the first coil unit 120-1, and the other end of the connection part of the first coil 120 is connected to one end of the second coil unit 120-2. Can be connected. That is, the first coil unit 120-1 and the second coil unit 120-2 may be connected in series by the connection part of the first coil 120, and one driving signal may be provided to the first coil 120. I can.

For example, the connection portion of the first coil 120 may face the third magnet 130-1 and may be disposed between the third magnet 130-1 and the bobbin 110.

According to another embodiment, the connection portion of the first coil 120 may face the dummy member 135 and may be disposed between the dummy member 135 and the bobbin 110.

In another embodiment, the first coil unit 120-1 and the first coil unit 120-2 may be separated or spaced apart from each other, and the first coil unit 120-1 and the first coil unit 120 -2) A separate driving signal may be provided for each.

Power or a driving signal may be provided to the first coil 120.

The power or driving signal provided to the first coil 120 may be a DC signal or an AC signal, or may include a DC signal and an AC signal, and may be in the form of voltage or current.

When a driving signal (eg, a driving current) is supplied to the first coil 120, through an 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 direction of the optical axis OA by the generated electromagnetic force.

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

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, a sensing coil 180, or/and a balancing magnet. In addition, the AF movable unit may further include a lens mounted on the bobbin 110.

In addition, the initial position of the AF movable part is the initial position of the AF movable part in the state that 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 can be the position where the part is placed.

In addition, the initial position of the bobbin 110 is the position where the AF movable part is placed when gravity acts from the bobbin 110 to the base 210, or vice versa, when the gravity acts from the base 210 to the bobbin 110. Can be

At the initial position of the AF movable part, the first coil unit 120-1 is perpendicular to the optical axis, and the direction from the optical axis toward the first coil unit 120-1 (or the center of the first coil unit 120-1) As a result, the first magnet 130-1 may be opposed to or overlapped, but the third magnet 130-3 may not be opposed or overlapped.

At the initial position of the AF movable part, the second coil unit 120-2 is perpendicular to the optical axis, and the direction from the optical axis toward the second coil unit 120-2 (or the center of the second coil unit 120-2) As a result, it may face or overlap with the second magnet 130-2, but it does not face or overlap with the third magnet 130-3.

Next, the sensing coil 180 will be described.

The sensing coil 180 may be disposed on one side of the bobbin 110 where the first coil unit 120-1 and the second coil unit 120-2 are not disposed. For example, the sensing coil 180 may be disposed on the protrusion 116 of the bobbin 110 and may be coupled to the protrusion 26 or may be wound around the protrusion 26.

When the lens driving device 100 is provided with a balancing sensing coil, the balancing sensing coil does not include the first coil unit 120-1 and the second coil unit 120-2 among the sides of the bobbin 110. It can be placed on either side of the other. For example, the balancing sensing coil may be coupled to a protrusion formed on the other side of the bobbin 110 or may be wound.

The balancing sensing coil may be used to cancel the magnetic field influence of the sensing coil 180 and balance the weight with the sensing coil 180, thereby enabling an accurate AF operation to be performed.

The sensing coil 180 may provide a magnetic field for the first position sensor 170 to sense. The sensing coil 180 may be provided with a driving signal or power to generate a magnetic field. The driving signal provided to the sensing coil 180 may include at least one of a DC signal or an AC signal. Also, the driving signal may be in the form of current or voltage.

The sensing coil 180 may include at least one of a circular shape, an elliptical shape, or a closed curve shape. For example, the sensing coil 180 may be in the form of a coil ring wound around an axis parallel to the optical axis.

For example, the sensing coil 180 may include a central hole, and the central hole may be parallel to the optical axis. Alternatively, the central hole of the sensing coil 180 may face the lower surface of the protrusion 116 of the bobbin 110 in which the sensing coil 180 is disposed, and may be coupled to the protrusion 26.

For example, the sensing coil 180 connects the first part 4a, the second part 4b disposed under the first part 4a, and the first part 4a and the second part 4b. A portion 4c may be included, and a closed curve may be formed by the first to third portions 4a to 4c.

The third part 4c is a first connection part 4c1 connecting one end of the first part 4a and one end of the second part 4b, and the other end and the second part 4b of the first part 4a It may include a second connection portion (4c2) connecting the other end of the.

For example, the first portion 3a or 4a may be expressed as a “first straight portion”, the second portion 3b or 4b may be expressed as a “second straight portion”, and the third portion ( 3c or 4c) may be expressed as a “curved portion”, the first connecting portion 3c1 or 4c1 may be expressed as a “first curved portion”, and the second connecting portion 3c2 or 4c2 may be expressed as “ It may be expressed as a "second curved part".

The sensing coil 180 is formed by the interaction between the first coil unit 120-1 and the first magnet 130-1 and the interaction between the second coil unit 120-2 and the second magnet 130-2. The silver bobbin 110 may move in the direction of the optical axis OA, and the first position sensor 170 may detect the strength of the magnetic field of the sensing coil 180 moving in the direction of the optical axis, and according to the detected result. Output signal can be output.

For example, the controller 830 of the camera module or the controller 780 of the terminal may detect the displacement of the bobbin 110 in the optical axis direction based on an output signal output from the first position sensor 170.

Next, the housing 140 will be described.

The housing 140 accommodates at least a portion of the bobbin 110 inside, and the first magnet 130-1, the second magnet 130-2, the third magnet 130-3, and the dummy member 135 ) Support.

4A is an exploded perspective view of the housing 140, first to third magnets 130-1 to 130-3, and the dummy member 135, and FIG. 4B is a housing 140, first to third magnets It is a combined perspective view of the s 130-1 to 130-3 and the dummy member 135.

4A and 4B, 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 housing 140 may accommodate the bobbin 110 inside. The outer surface of the housing 140 may be spaced apart from the inner surface of the side plate 302 of the cover member 300.

The housing 140 may have a hollow pillar shape including an opening or a hollow.

For example, the housing 140 may have a polygonal (eg, quadrangular or octagonal) or circular opening, and the opening of the housing 140 may be in the form of a through hole penetrating the housing 140 in the optical axis direction.

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 has two adjacent side portions 141-1 and 141-3, 141-1 and 141-4, 141-4 and 141-2, and 141 It may be disposed or positioned between -2 and 141-3), and the side portions 141-1 to 141-4 may be connected to each other.

For example, the corner portions 142-1 to 142-4 may be located at a corner or 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 in parallel with a corresponding one of the side plates of the cover member 300.

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

The first side portion 141-2 and the second side portion 141-2 of the housing 140 may be located opposite to each other, and the third side portion 141-3 and the fourth side portion 141-4 are It can be located on the other 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 the cover member 300 from directly colliding with the inner surface of the upper plate 301, the housing 140 may be provided with a stopper 144 on the upper, upper, or upper surface.

For example, a stopper 144 may be provided on an upper surface (eg, the first surface 51a) of each of the corner portions 142-1 to 142-4 of the housing 140, but is not limited thereto.

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

Each of the first coupling portion and the second coupling portion of the housing 140 may be one of a plane, a groove, or a protrusion.

The first coupling portion of the housing 140 and the first outer frame 152 of the upper elastic member 150 may be coupled to each other using heat fusion bonding or an adhesive, and the second coupling portion and the lower elastic portion of the housing 140 The second outer frames 162 of the member 160 may be coupled to each other.

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

In addition, the housing 140 is provided on any one of the other two side portions (eg, the third side portion 141-3) positioned opposite each other, and a third seating for the third magnet 130-3 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 protrusion 116 of the bobbin 110 may be included. .

For example, at least a part of the sensing coil 180 may be disposed on the fourth seating part 141d of the housing 140.

Each of the first to third seating portions 141a to 141c of the housing 140 may be provided on an inner side of a corresponding one of the side portions of the housing 140, but is not limited thereto, and provided on the outer side. It could be.

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

For example, the first mounting portion 141a (or the second mounting portion 141b) of the housing 140 has a first opening facing the first coil unit 120-1 (or the second coil unit). In addition, a second opening facing the third coil unit 230-1 (or the fourth coil unit 230-2) may be formed, and this is to facilitate mounting of the magnet 130.

The third seating portion 141c of the housing 140 may have a first opening facing the outer surface of the bobbin 110 and a second opening facing the fifth coil unit 230-3.

In addition, the fourth seating portion 141d of the housing 140 may be formed as a groove, for example, a groove having a shape that corresponds to or matches the protrusion 116 of the bobbin 110, but is not limited thereto. In an embodiment, it may be in the form of a through hole passing through the side of the housing 140.

The fourth seating portion 141d of the housing 140 includes a first opening that opens to the inner surface of the fourth side portion 141-4 of the housing 140 and the fourth side portion 141-4 of the housing 140. It may include a second opening that opens to the lower surface.

For example, one side of the first to third magnets 130-1, 130-2 and 130-3 fixed or disposed on the first to third seating parts 141a, 141b, 141c of the housing 140 Silver may be exposed through the first openings of the mounting portions 141a, 141b, and 141c. In addition, the lower surfaces of the first to third magnets 130-1, 130-2, 130-3 fixed or disposed on the first to third seating portions 141a, 141b, 141c of the housing 140 are the seating portions It may be exposed through the second opening of (141a, 141b, 141c).

At least a portion of the sensing coil 180 disposed on the fourth seating portion 141d of the housing 140 may be exposed through the second opening of the fourth side portion 141-4 of the housing 140.

For example, at least a portion of the lower or lower surface of the sensing coil 180 may be exposed through the second opening of the fourth side of the housing 140, and may face or overlap the first position sensor 170 in the optical axis direction. have.

For example, at least one of the first straight portion 4a and the second straight portion 4b of the sensing coil 180 may overlap the first position sensor 170 in the optical axis direction. Alternatively, at least a part of the central hole of the sensing coil 180 may overlap the first position sensor 170 in the optical axis direction.

Mounting grooves 41 and 42 for arranging the dummy member 135 may be provided in the fourth side portion 141-4 of the housing 140. For example, in the fourth side portion 141-4 of the housing 140, a first mounting groove 41 for arranging the first dummy 135a, and a second mounting groove for arranging the second dummy 135b ( 42) can be formed. Each of the first and second seating grooves 41 and 42 may have a shape recessed from the lower surface of the fourth side portion 141-4 of the housing 140, but is not limited thereto.

The fourth mounting portion 141d may be disposed between the first mounting groove 41 and the second mounting groove 42 of the housing 140, but is not limited thereto.

For example, the first to third magnets 130-1 to 130-3 may be attached or fixed to the first to third seating portions 141a to 141c by an adhesive. In addition, the dummy member 135 may be attached or fixed in the mounting grooves 41 and 42 of the housing 140 by an adhesive.

Support members 220-1 to 220-4 may be disposed at the corner portions 142-1 to 142-4 of the housing 140, and the corner portions 142-1 to 142-4 of the housing 140 Holes 147 forming a path 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.

In another embodiment, the holes provided in the corner portions 142-1 to 142-4 of the housing 140 may have a structure that is recessed from the outer surface of the corner portion of the housing 140, and at least a part of the hole is an outer surface of the corner portion It can also be opened. The number of holes 147 of the housing 140 may be the same as the number of support members.

The housing 140 may include at least one stopper (not shown) protruding from the outer surface of the side portions 141-1 to 141-4, and at least one stopper includes the housing 140 being perpendicular to the optical axis direction. It is possible to prevent collision with the cover member 300 when moving in one direction.

In order to prevent the lower surface of the housing 140 from colliding with the base 210 and/or the circuit board 250, the housing 140 may further include a stopper (not shown) protruding from the lower surface.

In order to secure a path through which the support members 220-1 to 220-4 pass, as well as to secure a space for filling silicon that can serve as a damping function, the housing 140 includes corner portions 142-1 to 142 -4) may be provided with a groove 148 provided at the lower or lower end.

Next, the first magnet 130-1, the second magnet 130-2, the third magnet 130-3, and the dummy member 135 will be described.

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 any two side parts 141-1 located opposite to each other among the side parts 141-1 to 141-4 of the housing 140, 141-2).

In addition, the third magnet 130-3 and the dummy member 135 are any two other side parts 141-3 and 141 located opposite to each other among the side parts 141-1 to 141-4 of the housing 140. -4) can be deployed.

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 faces the first side portion 141-1. It may be disposed on the second side portion 141-2 of the housing 140.

The third magnet 130-3 may be disposed on the third side part 141-3 of the housing 140, and the dummy member 135 may be formed of the housing 140 facing the third side part 141-3. It may be disposed on the fourth side portion 141-4.

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 driving the AF is not arranged between. In addition, a coil unit for driving the AF is not disposed between the bobbin 110 and the dummy member 135.

In addition, in order to drive the OIS, since the third to fifth coil units 230-1 to 230-3 and the first to third magnets 130-1 to 130-3 correspond to each other, the dummy member 135 The second coil 230 for driving OIS is not disposed between the and the circuit board 250.

For example, the first magnet 130-1 may include a first surface facing the first coil unit 120-1, and the first surface of the first magnet 130-1 is an N-pole and an S-pole It may include a first nonmagnetic partition wall 11c positioned between the two polarities of and the two polarities.

For example, the first magnet 130-1 may include a second surface facing the third coil unit 230-1, and the second surface of the first magnet 130-1 is an N-pole and an S-pole It may include two polarities of.

For example, the second magnet 130-2 may include a first surface facing the second coil unit 120-2, and the first surface of the second magnet 130-2 is an N pole and an S pole It may include a second nonmagnetic partition wall 12c positioned between the two polarities of and the two polarities.

For example, the second magnet 130-2 may include a second surface facing the fourth coil unit 230-2, and the second surface of the second magnet 130-2 is an N-pole and an S-pole It may include two polarities of.

For example, the third magnet 130-3 includes a first surface facing the side of the bobbin 110 facing the third side portion 141-3 of the housing 140 in which the third magnet 130 is disposed. In addition, the first surface of the third magnet 130-3 may include one polarity of the N pole or the S pole.

For example, the third magnet 130-3 may include a second surface facing the fifth coil unit 230-3, and the second surface of the third magnet 130-3 is an N-pole and an S-pole It can have two polarities.

In another embodiment, the third magnet 130-3 may be an anode magnetized magnet. In another embodiment, at least one of the first to third magnets 130-1 to 130-3 may be a single-pole magnetized magnet or a positive magnetized magnet.

At the initial position of the AF movable part, the first magnet 130-1 is perpendicular to the optical axis OA and at the optical axis OA, the first coil unit 120-1 (or the center of the first coil unit 120-1) It may overlap with the first coil unit 120-1 in a direction toward ).

At the initial position of the AF movable part, the second magnet 130-2 is perpendicular to the optical axis and is directed from the optical axis toward the second coil unit 120-2 (or the center of the second coil unit 120-2). 2 It may overlap with the coil unit 120-2.

At the initial position of the AF movable part, the third magnet 130-3 is perpendicular to the optical axis and the first coil unit in a direction from the third side part 141-3 to the fourth side part 141-4 of the housing 140. It does not face or overlap with the (120-1) and the second coil unit (120-2).

For example, each of the first to third magnets 130-1 to 130-3 may be disposed on any one of the first to third seating portions 141a to 141c of the housing 140.

The first magnet 130-1 is perpendicular to the optical axis and overlaps with the second magnet 130-2 in a direction toward the second side part 141-2 on the first side part 141-1 of the housing 140. I can.

The shape of each of the first to third magnets 130-1 to 130-3 is seated or disposed on one of the first to third side portions 141-1 to 141-3 of the housing 140 It may be a polyhedral shape that is easy to become, for example, a rectangular parallelepiped. For example, each of the first to third magnets 130-1 to 130-3 may have a flat plate shape, but is not limited thereto.

For example, each of the first and second magnets 130-1 and 130-2 may be a 4 pole magnet including two N poles and two S poles, and the third magnet 130- 3) may be a two-pole magnet including one N-pole and one S-pole. Here, the four-pole magnet may be expressed as a “positive magnetized magnet”, and the two-pole magnet may be expressed as a “unipolar magnetized magnet”. The first to third magnets 130-1 to 130-3 will be described later.

In another embodiment, at least one of the first to third magnets may be two-pole magnets. Alternatively, at least one of the first to third magnets may be a four-pole magnet.

The dummy member 135 may be disposed on the fourth side portion 141-4 of the housing 140. The dummy member 135 may be a non-magnetic material or a non-magnetic material, but is not limited thereto, and in other embodiments, may include a magnetic material.

The dummy member 135 may have the same mass as the third magnet 130-3, but is not limited thereto. The dummy member 135 may be disposed on a side portion 141-4 located opposite to the side portion 141-3 of the housing 140 on which the third magnet 130-3 is disposed for weight balance. The dummy member 135 may be represented by replacing it with a "weight balancing member", a "balancing member", or a "weight member".

The dummy member 135 may include a first dummy 135a and a second dummy 135b spaced apart from each other.

For example, at least a portion of the protrusion 116 of the bobbin 110 may be disposed between the first dummy 135a and the second dummy 135b. Also, for example, at least a portion of the sensing coil 180 may be disposed between the first dummy 135a and the second dummy 135b.

For example, the first dummy 135a and the second dummy 135b may have a symmetrical shape. For example, the first dummy 135a and the second dummy 135b may be symmetrically disposed with respect to the sensing coil 180 or the protrusion 116 of the bobbin 110, but the present invention is not limited thereto.

The dummy member according to another embodiment may include only one of the first dummy 135a and the second dummy 135b. In the dummy member according to another embodiment, the first dummy 135a and the second dummy 135b may be connected to each other.

At the initial position of the AF movable part, the dummy member 135 is perpendicular to the optical axis and is the first coil unit 120-in a direction from the third side part 141-3 to the fourth side part 141-4 of the housing 140. It does not face or overlap with 1) and the second coil unit 120-2.

The dummy member 135 may be perpendicular to the optical axis and face or overlap the third magnet 130-3 in a direction from the third side portion 141-3 of the housing 140 toward the fourth side portion 141-4. have.

In addition, the dummy member 135 is perpendicular to the optical axis and does not overlap with the first position sensor 170 in a direction from the third side portion 141-3 to the fourth side portion 141-4 of the housing 140.

Also, the dummy member 135 may not overlap with the first position sensor 170 in the optical axis direction. In addition, the dummy member 135 may not overlap with the sensing coil 180 in the optical axis direction, but is not limited thereto. In another embodiment, both may overlap with each other in the optical axis direction.

In addition, the dummy member 135 does not overlap with the second coil 230 in the optical axis direction.

For example, a coil unit may not be formed in an area corresponding to the dummy member 135 in the optical axis direction (eg, an area of the circuit member 231 ).

When the dummy member 135 includes a magnetic material, the magnetic intensity of the dummy member 135 may be less than that of the third magnet 130-3.

For example, the dummy member 135 may include tungsten, and tungsten may occupy 95% or more of the total weight. For example, the dummy member 135 may be a tungsten alloy.

The first and second dummy (135a, 135b) may have a polyhedron, for example, a rectangular parallelepiped or a regular cube shape, but are not limited thereto and may be formed in various shapes. For example, the dummy member 135 may include a rounded portion or a curved surface at a side edge.

Next, the upper elastic member 150, the lower elastic member 160, the support member 220, the second coil 230, the circuit board 250, and the base 210 will be described.

5 is a perspective view of the upper elastic member 150, FIG. 6 is a view for explaining the electrical connection relationship between the upper elastic member 150, the support member 220, and the circuit board 250, and FIG. The first to third magnets 130-1 to 130-3, the dummy member 135, the housing 140, the lower elastic member 160, and the sensing coil 180 are bottom views, and FIG. 8 is a second An exploded perspective view of the coil 230, the circuit board 250, and the base 210, FIG. 9 is a cross-sectional view of the lens driving apparatus 100 in the AB direction of FIG. 2, and FIG. 10 is a lens driving apparatus 100 ) Is a cross-sectional view in the CD direction of FIG. 2, and FIG. 11 is a cross-sectional view of the lens driving device 100 in the EF direction of FIG. 2.

5 to 11, the upper elastic member 150 and the lower elastic member 160 may constitute an elastic member, and the elastic member may be coupled to the bobbin 110 and the housing 140, and The member may elastically support the bobbin 110 with respect to the housing 140.

The upper elastic member 150 may be coupled to the upper, upper, or upper end of the bobbin 110 and the upper, upper, or upper end of the housing 140. 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. In the upper elastic member and the lower elastic member, the elastic member may be represented by replacing it with “elastic unit”, “spring”, or “elastic body”.

The upper elastic member 150 may include a plurality of upper elastic members 150-1 to 150-4 spaced or separated from each other. In FIG. 5, four upper elastic members separated from each other are shown, but the number is not limited thereto, and in other embodiments, there may be two or more. Alternatively, in another embodiment, the upper elastic member 150 may be implemented as a single elastic unit integrally formed.

At least one of the first to fourth upper elastic members 150-1 to 150-4 is a first inner frame 151 coupled to the bobbin 110, and a first outer frame 152 coupled to the housing 140. ), a first frame connecting portion 153 connecting the first inner frame 151 and the first outer frame 152 may be further included. In this case, the inner frame may be expressed as "inner part", and the outer frame may be expressed as "outer part".

For example, the first and second inner frames 151 and 161 may be provided with a first region to be coupled to the first and second coupling portions of the bobbin 110, and the first and second outer frames ( A second region may be provided in 152 and 162 to be coupled to the first and second coupling portions of the housing 140. Although not shown in FIG. 6, holes for coupling the first and second coupling portions of the bobbin 110 and the first and second coupling portions of the housing 140 may be provided in the first and second regions.

The first outer frame 152 of each of the first to fourth upper elastic members 150-1 to 150-4 corresponds to one of the corner portions 142-1 to 142-4 of the housing 140 The first coupling portion 510 coupled, the second coupling portion 520 coupled with the support members 220-1 to 220-4, and connecting the first coupling portion 510 and the second coupling portion 520 It may include a connection portion 530.

The first coupling part 510 may include at least one coupling region (for example, 5a, 5b) coupled to the housing 140 (for example, the corner parts 142-1 to 142-4).

For example, in FIG. 5, holes are not formed in the coupling regions 5a and 5b of the first coupling portion 510, but in other embodiments, the coupling regions (eg, 5a, 5b) of the first coupling portion 510 are housings It may include at least one hole or through hole (not shown) coupled to the first coupling portion of 140.

For example, each of the coupling regions 5a and 5b may have one or more holes, and one or more first coupling portions are provided corresponding to the corner portions 142-1 to 142-4 of the housing 140 Can be. In another embodiment, the coupling regions of the first coupling portion 510 may be implemented in various shapes sufficient to be coupled to the housing 140, for example, in a groove shape.

The second coupling part 520 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 portion 520 by a conductive adhesive member or solder 901 (see FIG. 6), and the second coupling portion 520 And the support members 220-1 to 220-4 may be electrically connected.

For example, the second coupling part 520 is a region in which the solder 901 is disposed for coupling with the support member 220 and may include a hole 52 and a region around the hole 52.

The connection part 530 may connect the coupling regions 5a and 5b of the first coupling part 510 and the second coupling part 510.

For example, the connection part 530 is a first connection part 530-1 and a first connection part 510 connecting the first region 5a of the first coupling part 510 and the second coupling part 520. It may include a second connection part 530-2 connecting the second region 5b and the second coupling part 520. Each of the first and second connecting portions 530 may include a portion that is bent or bent at least once.

Referring to FIG. 5B, the lower elastic member 160 may be implemented as an integrally formed elastic unit, but is not limited thereto, and in another embodiment, a plurality of elastic units separated from each other may be included.

For example, the lower elastic member 160 is a second inner frame 161 that is coupled or fixed to the lower, lower, or lower end of the bobbin 110, the lower, lower, or lower portion of the housing 140. 2 The outer frame 162 may include a second frame connector 163 connecting the second inner frame 161 and the second outer frame 162 to each other.

Each of the first frame connection portion 153 of the upper elastic member 150 and the second frame connection portion 163 of the lower elastic member 160 are formed to be bent or curved (or curved) at least once to form a pattern of a predetermined shape. Can be formed. The bobbin 110 may be elastically (or elastically) supported by an upward and/or downward motion of the bobbin 110 in the first direction through a change in position and fine deformation of the first and second frame connection parts 153 and 163.

The upper elastic members 150-1 to 150-4 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.

Next, the support member 220 will be described.

The support member 220 may elastically support the OIS movable part (eg, the housing 140) with respect to the fixed part, and may support the OIS movable part so as to be movable in a direction perpendicular to the optical axis. The fixing part may include at least one of the circuit board 250, the second coil 230, or/and the base 210.

The support member 220 may electrically connect the upper elastic member 150 and 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.

Each of the first to fourth support members 220-1 to 220-4 may be disposed at any one of the first to fourth corner parts 142-1 to 142-4 of the housing 140, , One of the first to fourth upper elastic members 150-1 to 150-4 and the circuit board 250 may be connected to each other.

In FIG. 2, one support member is disposed at one corner of the housing 140, but is not limited thereto. In another embodiment, two or more support members may be disposed at one corner of the housing 140. have.

For example, each of the first to fourth support members 220-1 to 220-4 may correspond to one of the first to fourth upper elastic members 150-1 to 150-4 and the circuit board 250 One of the corresponding terminals of 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 coupled or fixed to the housing 140, but the first to fourth support members 220-1 to 220-4 through a conductive adhesive or soldering. One end of each of the fourth support members 220-1 to 220-4 is attached to a corresponding first coupling part 510 of the first to fourth upper elastic members 150-1 to 150-4 Can be directly connected or combined.

In addition, 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 through soldering or the like. 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 circuit member 231 or the base 210 of the second coil 230.

For example, each of the first to fourth support members 220-1 to 220-4 passes through a hole 147 provided in a corresponding one of the corner portions 142-1 to 142-4 of the housing 140 However, it is not limited thereto. In another embodiment, the support members may be disposed adjacent to the boundary line between the side portions 141-1 to 141-4 and the corner portions 142 of the housing 140, and the corner portions 142-1 of the housing 140 To 142-4) may not pass.

The first coil 120 may be electrically connected to the upper elastic member 150.

One end of the first coil unit 120-1 may be coupled or connected to the first upper elastic member 150-1, and the other end of the first coil unit 120-1 is a second upper elastic member 150-2. ) Can be bound or linked. For example, the first coil unit 120-1 may be coupled or connected to the first inner frame 151 of the first and second upper elastic members 150-1 and 150-2.

One end of the second coil unit 120-2 may be coupled or connected to the third upper elastic member 150-3, and the other end of the second coil unit 120-2 is a fourth upper elastic member 150-4. ) Can be bound or linked. For example, the second coil unit 120-2 may be coupled or connected to the first inner frame 151 of the third and fourth upper elastic members 150-3 and 150-4.

The first and second coil units 120-1 and 120-2 may be electrically connected to the circuit board 250 by the first to fourth support members 220-1 to 220-4.

For example, the first and second coil units 120-1 and 120-2 may be connected in series to each other through a wiring or a circuit pattern formed on the circuit board 250. In addition, both ends of the first and second coil units connected in series may be electrically connected to any two terminals of the circuit board 250. In this case, one driving signal may be provided to the first coil unit 120-1 and the second coil unit 120-2 through any of the two terminals of the circuit board 250.

In another embodiment, the first and second coil units 120-1 and 120-2 may not be connected in series with each other, and the first coil units 120-1 are two terminals of the circuit board 250 May be electrically connected to the field, and the second coil units 120-2 may be electrically connected to the other two terminals of the circuit board 250, and the first coil units 120-2 may be electrically connected to the other two terminals of the circuit board 250. Individual driving signals (eg, driving current) may be provided to each of the coil unit 120-1 and the second coil unit 120-2.

In another embodiment, the first coil unit 120-1 and the second coil unit 120-2 may be connected in series to each other by an upper elastic member. For example, the upper elastic member may include first to third elastic units, the first coil unit 120-1 may be coupled to the first elastic unit and the third elastic unit, and the second coil unit 120 -2) may be coupled to the second elastic unit and the third elastic unit, and both may be connected in series by the third elastic unit.

The support member 220 is conductive and may be implemented as a member that can be supported by elasticity, for example, a suspension wire, a leaf spring, or a coil spring. In addition, in another embodiment, the support member 220 may be integrally formed with the upper elastic member 150.

In order to absorb and buffer the vibration of the bobbin 110, the lens driving device 100 is disposed between each of the upper elastic members 150-1 to 150-4 and the bobbin 110 (or the housing 140). A first damper (not shown) may be further provided.

For example, a first damper (not shown) may be disposed in a space between the first frame connection part 153 and the bobbin 110 of each of the upper elastic members 150-1 to 150-4.

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

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

In addition, for example, the lens driving device 100 may further include a second coupling portion 520 and a fourth damper (not shown) disposed at one end of the support member 220, and the other end of the support member 220 A fifth damper (not shown) disposed on the circuit board 250 may be further included.

In addition, in order to prevent oscillation due to vibration, a sixth damper (not shown) may be filled in the empty space between the connection part 530 and the housing 140.

In addition, for example, a seventh damper (not shown) may be further disposed between the inner surface of the housing 140 and the outer peripheral surface of the bobbin 110.

Next, the base 210, the circuit board 250, and the second coil 230 will be described.

Referring to FIG. 8, the base 210 is disposed under the bobbin 110 (or the housing 140 ).

The base 210 may have an opening 21 corresponding to the opening of the bobbin 110 or/and the opening of the housing 140, and has a shape that matches or corresponds to the cover member 300, for example, a square shape. Can be For example, the opening of the base 210 may be in the form of a through hole penetrating the base 210 in the optical axis direction.

A support part 255 or a support part may be provided in an area 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 surface 253 of the circuit board 250 on which the terminal 251 is formed.

The base 210 may have a groove 212 in a corner region to avoid spatial interference with the other end of the support members 220-1 to 220-4 coupled to the circuit board 250. For example, the groove 212 may be formed to correspond to the edge of the cover member 300.

In addition, a coupling groove 23 of the circuit member 231 and a protrusion 29 for coupling to the coupling groove 27 of the circuit board 250 may be provided on an upper surface around the opening of the base 210. For example, the coupling groove 23 may be formed adjacent to the opening of the circuit member 231 and may be recessed from the inner surface of the circuit member 231. Further, for example, the coupling groove 27 may be formed adjacent to the opening of the circuit board 250 and may be recessed from the inner circumferential surface of the circuit board 250.

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

The base 210 is a first mounting groove (215-1) for placing, seating, or receiving the first position sensor 170, the first sensor 240a of the second position sensor 240 is arranged, seated or A second seating groove 215-2 for receiving, and a third seating groove 215-3 for arranging, seating or receiving the second sensor 240b of the second position sensor 240 may be included. .

The first to third seating grooves 215-1 to 215-3 may be recessed from the upper surface of the base 210.

The second coil 230 may be disposed under the bobbin 110 or/and the housing 140, and may be disposed on the circuit board 250. For example, the second coil 230 may be disposed on the upper surface of the circuit board 250.

The second coil 230 may be disposed under the housing 140 and the bobbin 110.

The second coil 230 may include a plurality of coil units 230-1 to 230-3.

For example, the second coil 230 includes a third coil unit 230-1 corresponding to the first magnet 130-1 disposed in the housing 140, and a fourth coil unit 230-1 corresponding to the second magnet 130-2. A coil unit 230-2 and a fifth coil unit 230-3 corresponding to the third magnet 130-3 may be included.

Here, the third coil unit 230-1 may be expressed as a "first OIS coil unit" or "first coiling", and the fourth coil unit 230-2 is a "second OIS coil unit" Alternatively, it may be expressed as a substitute for “second coiling”, and the fourth coil unit 230-4 may be expressed as a “third OIS coil unit” or “third coiling”.

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 be a second magnet 130- 2) may be opposed to or overlapped, and the fifth coil unit 230-3 may be opposed to or overlapped with the third magnet 130-3 in the optical axis direction.

Each of the third to fifth coil units 230-1 to 230-3 may have 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.

Each of the third to fifth coil units 230-1 to 230-4 may be in the form of a coil pattern formed of a fine pattern (FP) coil, but is not limited thereto.

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

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

For example, the second coil 230 may further include a polygonal (eg, rectangular) circuit member 231 in which the third to fifth coil units 230-1 to 230-3 are formed. Here, the circuit member 231 may be expressed as a "substrate", a "circuit board", or a "coil board".

For example, the circuit member 231 may include four sides, and each of the third to fifth coil units 230-1 to 230-3 corresponds to any one of the three sides of the circuit member 231 The coil unit may not be disposed on the other side of the circuit member 231.

For example, each of the third coil unit 230-1 and the fourth coil unit 230-2 may be disposed parallel to one of the first and second sides facing each other of the circuit member 231, , The fifth coil unit 230-3 may be disposed parallel to the third or fourth side of the circuit member 231.

In another embodiment, the second coil may include only ring-shaped coil blocks in a form in which a circuit member is omitted or third to fifth coil units implemented in a fine patterned (FP) form.

In another embodiment, the third to fifth coil units of the second coil may be implemented in the form of a circuit pattern or wiring formed on the circuit board 250.

The circuit board 250 and the circuit member 231 are expressed as separate components, but are not limited thereto, and in another embodiment, the circuit board 250 and the circuit member 231 are bundled together to be "circuit member". It can also be expressed in terms of In this case, the other ends of the support members may be coupled to the "circuit member (eg, the lower surface of the circuit member)".

In order to avoid spatial interference with the support members 220-1 to 220-4, a hole 230a may be provided at the edge of the circuit member 231, and the support members 220-1 to 220-4 Silver may pass through the hole 230a of the circuit member 231. In another embodiment, the circuit member may have a groove provided at the edge of the circuit member instead of the hole in order to avoid spatial interference with the support members.

The third to fifth coil units 230-1 to 230-3 may be electrically connected to the circuit board 250. For example, the third to fifth coil units 230-1 to 230-3 may be electrically connected to the terminals 251 of the circuit board 250.

The circuit board 250 is disposed on the upper surface of the base 210 and may have an opening corresponding to an opening of the bobbin 110, an opening of the housing 140, or/and an opening of the base 210. The shape of the circuit board 250 may be a shape that matches or corresponds to the upper surface of the base 210, for example, a square shape.

The circuit board 250 may include at least one terminal surface 253 that is bent from an upper surface. A plurality of terminals 251 for receiving electrical signals from the outside may be provided on at least one terminal surface 253 of the circuit board 250.

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

A driving signal may be provided to each of the first coil 120 and the second coil 230 through a plurality of terminals 251 provided on the terminal surface 253 of the circuit board 250. In addition, a driving signal may be provided to each of the first position sensor 170 and the second position sensor 240 through the terminals 251 of the circuit board 250, and the circuit board 250 includes the first and second position sensors. The output signals of each of the position sensors 170 and 240 may be received and output through the terminals 251.

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

The circuit board 250 may include a hole 250a 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. The location and number of the holes 250a may correspond to or correspond to the location and number of the support members 220-1 to 220-4. In another embodiment, the circuit board 250 may have escape grooves at the corners instead of the holes 250a.

For example, the support members 220-1 to 220-4 may pass through the hole 250a of the circuit board 250 and be electrically connected through a circuit pattern disposed on the lower surface of the circuit board 250 and solder, etc. , But is not limited thereto.

In another embodiment, the circuit board 250 may not have a hole, and the support members 220-1 to 220-4 may be formed on a circuit pattern or pad formed on the upper surface of the circuit board 250 through solder, etc. It can also be electrically connected.

Alternatively, in another embodiment, the support members 220-1 to 220-4 may be electrically connected to the circuit member 231, and the circuit member 231 may be connected to the support members 220-1 to 220-4. The substrate 250 may be electrically connected.

The circuit board 250 may include pads P1 to P4 to be electrically connected to the third to fifth coil units 230-1 to 230-3. Power or a driving signal may be provided to the second coil 230 through the circuit board 250. The power or driving signal provided to the second coil 230 may be a DC signal or an AC signal, or may include a DC signal and an AC signal, and may be in the form of current or voltage.

For example, one end of the third coil unit 230-1 may be connected to the first pad P1, and the other end of the third coil unit 230-1 may be connected to the second pad P2.

One end of the fourth coil unit 230-2 may be connected to the third pad P3, and the other end of the fourth coil unit 230-2 may be connected to the fourth pad P4. And any one of the first and second pads (for example, P2) and one of the third and fourth pads P3 and P4 (for example, P4) are formed by the first circuit pattern (or first wiring). Can be connected to each other.

The third and fourth coil units 230-1 and 230-2 may be connected in series with each other. And the other one of the first and second pads P1 and P2 (for example, P1) and the other one of the third and fourth pads P3 and P4 (for example, P3) is a second circuit pattern ( Alternatively, it may be electrically connected to the first and second terminals of the circuit board 250 through a second wiring). In addition, a first driving signal may be provided to the first and second coil units 230-1 and 230-2 through the first and second terminals of the circuit board 250.

In addition, for example, one end of the fifth coil unit 230-3 may be connected to the fifth pad P5, and the other end of the fifth coil unit 230-3 may be connected to the sixth pad P6. The fifth and sixth pads P5 and P6 may be electrically connected to the third and fourth terminals of the circuit board 250 through a third circuit pattern (or third wiring). A second driving signal may be provided to the fifth coil unit 230-3 through the third and fourth terminals of the circuit board 250.

The first to third circuit patterns (or wirings) may be formed in the circuit board 250.

OIS movable part by interaction between the first to third magnets 130-1 to 130-3 and the third to fifth coil units 230-1 to 230-3 provided with the first and second driving signals (For example, the housing 140) may be moved in the second and/or third direction, for example, in the x-axis and/or y-axis direction, and thus, camera shake correction may be performed.

The first and second sensors 240a and 240b of the first position sensor 170 and the second position sensor 240 may be disposed between the circuit board 250 and the base 210. For example, the first position sensor 170 and the first and second sensors 240a and 240b may be disposed, mounted, or coupled to the lower surface of the circuit board 250.

In another embodiment, at least one of the first position sensor 170 and the first and second sensors 240a and 240b may be disposed on the upper surface of the circuit board 250.

In another embodiment, the first position sensor may be disposed in the housing 140 instead of the base 210, and a seating portion for placing the first position sensor 170 may be provided in the housing 140. The seating portion may be a groove or a hole. For example, the first position sensor disposed in the housing 140 may overlap the sensing magnet in the optical axis direction, but is not limited thereto, and in other embodiments, both may not overlap in the optical axis direction. In addition, the first position sensor disposed in the housing 140 may be disposed under the sensing coil 180, but is not limited thereto, and may be disposed on one side of the sensing coil.

Each of the first position sensor 170 and the first and second sensors 240a and 240b may be electrically connected to the circuit board 250. For example, the first position sensor 170 and each of the first and second sensors 240a and 240b may be electrically connected to the terminals 251 of the circuit board 250.

The first position sensor 170 may be an "AF position sensor", and the second position sensor 240 may be an OIS position sensor. The second position sensor 240 includes a first sensor 240a and a second position sensor. It may include a sensor (240b).

The AF movable unit (eg, the bobbin 110 and the sensing coil 180) may be moved in the optical axis direction by electromagnetic force caused by the interaction between the first coil 120 and the magnet 130, and the first position sensor 170 ) Can detect the strength or magnetic force of the magnetic field of the sensing coil 180 moving in the direction of the optical axis, and output an output signal according to the detected result.

For example, the strength or magnetic force of the magnetic field of the sensing coil 180 sensed by the first position sensor 170 may be changed according to the displacement of the bobbin 110 in the optical axis direction, and the first position sensor 170 detects An output signal proportional to the strength of the magnetic field may be output, and a displacement of the bobbin 110 in the optical axis direction may be sensed using an output signal of the first position sensor 170.

The OIS movable part may be moved in a direction perpendicular to the optical axis by electromagnetic force caused by the interaction between the second coil 230 and the magnet 130, and each of the first and second sensors 240a and 240b is perpendicular to the optical axis. The strength of the magnetic field of the magnet 130 of the OIS movable part moving in one direction may be detected, and an output signal according to the detected result may be output.

A displacement of the OIS movable part in a direction perpendicular to the optical axis, for example, a shift or a tilt of the OIS movable part, may be sensed by using the output signals of the first and second sensors 240a and 240b. Here, the OIS movable unit may include an AF movable unit and components mounted on the housing 140.

For example, the OIS movable unit may include an AF movable unit and a housing 140, a magnet 130, and a dummy member 135.

At least one of the first position sensor 170 and the first and second sensors 240a and 240b may be implemented as a Hall sensor alone.

Alternatively, at least one of the first position sensor 170 and the first and second sensors 240a and 240b may be implemented in the form of a driver integrated circuit (IC) including a Hall sensor.

In addition, since the first position sensor 170 is disposed on the base 210, compared to the case where the first position sensor 170 is disposed on the OIS movable part (eg, a housing), sensing with the first position sensor 170 Since the separation distance between the coils 180 may be increased, the first position sensor 170 may be implemented as a Hall sensor having high sensitivity or a Tunnel Magnetoresistance (TMR) sensor.

In an embodiment in which the Hall sensor is implemented alone, the Hall sensor 170, 240a, or 240b may include two input terminals and two output terminals. The two input terminals of the Hall sensor may be electrically connected to the two terminals of the circuit board 250, through which a driving signal may be provided. In addition, the two output terminals of the Hall sensor may be electrically connected to the other two terminals of the circuit board 250, through which the output signal of the Hall sensor may be output.

In an embodiment implemented in the form of a driver integrated circuit (IC) including a Hall sensor, a driving signal may be directly provided to the first coil 120 from the first position sensor 170. For example, the first position sensor 170 may be electrically connected to the two upper elastic members through two support members, and may directly provide a driving signal to the first coil 120. In addition, the first driving signal may be directly provided to the third and fourth coil units 230-1 and 230-2 from the first sensor 240a, and the fifth coil unit 230-3 may be provided from the second sensor 240b. ) May be provided directly to the second driving signal.

For example, the first sensor 240a may be electrically connected to two pads of the circuit board 250 electrically connected to the third and fourth coil units 2301 and 230-2 connected in series, and the second sensor 240b may be electrically connected to two pads of the circuit board 250 electrically connected to the fifth coil unit 230-3.

In addition, in an embodiment implemented in the form of a driver IC (Integrated Circuit) including a Hall sensor, signals for data communication with the driver IC may be transmitted and received through the terminals 251 of the circuit board 250. Signals for data communication may include a clock signal, a data signal, and a power signal.

Next, the cover member 300 will be described.

The cover member 300 includes an OIS movable part, an upper elastic member 150, a lower elastic member 160, a first position sensor 170, a second coil 230, and a base in an accommodation space formed together with the base 210. 210, the circuit board 250, the support member 220, and the second position sensor 240 may be accommodated.

The cover member 300 has an open lower portion and may be in the form of a box including an upper plate 310 and side plates 302, and a lower portion of the cover member 300 may be coupled to an upper portion of the base 210. The shape of the upper plate of the cover member 300 may be a polygon, for example, a square or an octagon.

The cover member 300 may have an opening in the upper plate that exposes a lens (not shown) coupled to the bobbin 110 to external light. The material of the cover member 300 may be a non-magnetic material such as SUS in order to prevent sticking with 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. In addition, the cover member 300 may be connected to the ground of the second holder 800 of the camera module 200. The cover member 300 may block electromagnetic interference (EMI).

12 illustrates a first position sensor 170, a sensing coil 180, first to third magnets 130-1 to 130-3, a dummy member 135, and third to fifth coil units ( 230-1 to 230-5), and FIG. 13 is a first position sensor 170, a sensing coil 180, first to third magnets 130-1 to 130-3, and a dummy member ( 135), third to fifth coil units 230-1 to 230-5, and a perspective view of the first and second sensors 240a and 240b, and FIG. 14 is a bottom view of the configurations shown in FIG. 12 to be.

12 to 14, the first magnet 130-1 includes a first magnet part 11a, a second magnet part 11b, and a first magnet part 11a and a second magnet part 11b. It may include a first partition wall 11c disposed therebetween. Here, the first partition wall 11c may be represented by replacing it with a "first nonmagnetic partition wall".

For example, the first magnet part 11a and the second magnet part 11b may be spaced apart from each other in the optical axis direction, and the first partition wall 11c is between the first magnet part 11a and the second magnet part 11b. Can be located in

The first magnet portion 11a may include an N-pole, an S-pole, and a first interface 21a between the N-pole and the S-pole. The first interface 21a may include a section that has almost no polarity as a part that does not have a substantially magnetic property, and may be a part that is naturally generated to form a magnet composed of one N pole and one S pole. .

The second magnet part 11b may include an N-pole, an S-pole, and a second interface 21b between the N-pole and the S-pole. The second interface 21b may include a section that has almost no polarity as a part that does not substantially have magnetism, and may be a part that is naturally generated to form a magnet composed of one N pole and one S pole. .

The first partition wall 11c separates or isolates the first magnet part 11a and the second magnet part 11b, and may be a part that does not substantially have magnetic properties and has almost no polarity. For example, the first partition wall 11c may be a nonmagnetic material or air. The partition wall may be expressed as a "Neutral Zone" or a "Neutral Zone".

The first partition wall 11c is a portion artificially formed when magnetizing the first magnet portion 11a and the second magnet portion 11b, and the width W11 of the first partition wall 11c is a first boundary surface ( It may be larger than the width of each of the 21a) and the second interface (21b).

Here, the width W11 of the first partition wall 11c may be a length of the first partition wall 11c in a direction from the first magnet part 11a to the second magnet part 11b. Alternatively, the width W11 of the first partition wall 11c may be the length of the first partition wall 11c in the optical axis direction.

The first magnet portion 11a and the second magnet portion 11b may be disposed so that opposite polarities face each other in the optical axis direction.

For example, the S pole of the first magnet part 11a and the N pole of the second magnet part 11b may be disposed to face the first coil unit 120-1, but are not limited thereto, and vice versa. It could be.

The second magnet 130-2 includes a third magnet portion 12a, a fourth magnet portion 12b, and a second partition wall 12c disposed between the third magnet portion 12a and the fourth magnet portion 12b. ) Can be included. Here, the second partition wall 12c may be replaced with a "second non-magnetic partition wall".

For example, the third magnet portion 12a and the fourth magnet portion 12b may be spaced apart from each other in the optical axis direction, and the second partition wall 12c is between the third magnet portion 12a and the fourth magnet portion 12b. Can be located in

Each of the third magnet portion 12a and the fourth magnet portion 12b may include an N-pole, an S-pole, and an interface between the N-pole and the S-pole.

Descriptions of the interface surfaces 21a and 21b of the first and second magnet parts 11a and 11b may be applied to the boundary surfaces of the third magnet part 12a and the fourth magnet part 12b. Also, the description of the first partition wall 11c may be applied to the second partition wall 12c.

Each of the first and second partition walls 11c and 12c may extend in a horizontal direction or a direction perpendicular to the optical axis. For example, each of the first and second partition walls 11c and 12c may isolate or separate the two magnet portions 11a and 11b, 12a and 12b from each other in the optical axis direction.

The first magnet portion 11a, the first partition wall 11c, and the second magnet portion 11b may be sequentially disposed in the optical axis direction. The third magnet portion 12a, the second partition wall 12c, and the fourth magnet portion 12b may be sequentially disposed in the optical axis direction.

For example, the first magnet part 11a may be disposed on the first partition wall 11c, and the second magnet part 11b may be disposed under the first partition wall 11c. In addition, the third magnet portion 12a may be disposed on the second partition wall 12c, and the fourth magnet portion 12b may be disposed under the second partition wall 12c.

For example, each of the first partition wall 11c and the second partition wall 12c may be parallel to a straight line perpendicular to the optical axis, and the boundary surfaces 21a and 21b of each of the first and second magnet parts 11a and 11b are optical axes. Can be parallel to

For example, each of the first magnet 130-1 and the second magnet 130-2 may have an N-pole and an S-pole of an anode magnetization disposed in the optical axis direction.

The third magnet 130-3 may include an N-pole, an S-pole, and an interface between the N-pole and the S-pole. The boundary surface of the third magnet 130-3 may include a section having almost no polarity as a part that does not have substantially magnetism, and is naturally generated in order to form a magnet composed of one N pole and one S pole. It can be part.

For example, the first magnet 130-1 may be located inside the region of the third coil unit 230-1 and may overlap with the third coil unit 230-1 in the optical axis direction.

For example, the second magnet 130-2 may be located inside the region of the fourth coil unit 230-2 and may overlap with the fourth coil unit 230-2 in the optical axis direction.

For example, the third magnet 130-3 may be located inside the region of the fifth coil unit 230-3, and may overlap with the fifth coil unit 230-3 in the optical axis direction.

One portion of the third coil unit 230-1 is a first polarity portion of the first magnet portion 11a, a first partition wall 11c, and a second polarity portion of the second magnet portion 11b in the optical axis direction And can overlap at the same time. Here, the first polarity portion may be an N-pole or S-pole, and the second polarity portion may be an opposite polarity portion of the first polarity.

One portion of the fourth coil unit 230-2 is a first polarity portion of the third magnet portion 12a, a second partition wall 12c, and a second polarity portion of the fourth magnet portion 12b in the optical axis direction And can overlap at the same time.

Any one portion of the fifth coil unit 230-3 may overlap with the N and S poles of the third magnet 130-3 in the optical axis direction.

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

In addition, the third coil unit 230-1 and the fourth coil unit 230-2 may have the same shape, but are not limited thereto. For example, the length, width, and height of the third coil unit 230-1 and the fourth coil unit 230-2 may be the same, but are not limited thereto.

Referring to FIGS. 12 to 14, first to third magnets 130-1 to 130-3, dummy 135a and 135b, sensing coil 180, and third to fifth coil units 230- 1 to 230-3) Each length, width, and height will be described.

Here, each of the first to third magnets 130-1 to 130-3, the sensing coil 180, the dummy 135a and 135b, and the third to fifth coil units 230-1 to 230-3 The length may be a length in each of these longitudinal directions.

In addition, each of the first to third magnets 130-1 to 130-3, the sensing coil 180, the dummy 135a, 135b, and the third to fifth coil units 230-1 to 230-3 The width may be the length of each of these in the width direction. Here, the width direction may be perpendicular to the length direction, and the length may be a shorter direction in each of the components 130-1 to 130-3, 135a, 135b, 180, 230-1 to 230-3. In addition, the width of each component (130-1 to 130-3, 135a, 135b, 180, 230-1 to 230-3) may be expressed by replacing the "thickness" of each component.

The height of each of the first to third magnets 130-1 to 130-3, the sensing coil 180, the dummy 135a and 135b, and the third to fifth coil units 230-1 to 230-3 is Each of these may be lengths in the optical axis direction.

For example, the length of each component (130-1 to 130-3, 135a, 135b, 180, 230-1 to 230-3) is each component (130-1 to 130-3, 135a, facing the bobbin 110), 135b, 180, 230-1 to 230-3) may be a length in the horizontal direction of the first surface.

In addition, for example, the width of each component (130-1 to 130-3, 135a, 135b, 180, 230-1 to 230-3) is each component facing the bobbin 110 ((130-1 to 130-3, 135a, 135b, 180, 230-1 to 230-3) may be a distance from the first surface to the second surface opposite to the first surface.

In addition, the height of each component (130-1 to 130-3, 135a, 135b, 180, 230-1 to 230-3) is each component facing the bobbin 110 ((130-1 to 130-3, 135a, 135b) , 180, 230-1 to 230-3) may be the length of the first surface in the vertical direction, or, for example, each of the components (130-1 to 130-3, 135a, 135b, 180, 230-1 to 230- The height of 3) may be the distance from the lower surface to the upper surface of each component (130-1 to 130-3, 135a, 135b, 180, 230-1 to 230-3),

The length L1 of the first magnet 130-1 may be smaller than the length M1 of the third coil unit 230-1 (L1<M1), but is not limited thereto, and in other embodiments, both are They can also be the same.

The width W1 of the first magnet 130-1 may be smaller than the width K1 of the third coil unit 230-1 (W1<K1), but is not limited thereto, and in other embodiments, both are They can also be the same.

In addition, the length of the second magnet 130-2 may be smaller than the length of the fourth coil unit 230-2. The width of the second magnet 130-2 may be smaller than the width of the fourth coil unit 230-2.

The length L2 of the third magnet 130-3 may be smaller than the length M2 of the fifth coil unit 230-3 (L2<M2), but is not limited thereto, and in other embodiments, both are They can also be the same.

The width W2 of the third magnet 130-3 may be smaller than the width K2 of the fifth coil unit 230-3 (W2<K2), but is not limited thereto, and in other embodiments, both are They can also be the same.

The length M2 of the fifth coil unit 230-3 may be larger than the length M1 of the third coil unit 230-1 or/and the length of the fourth coil unit 230-2 (M2> M1), the present invention is not limited thereto, and in other embodiments, both may be the same.

The length (L2) of the third magnet (130-3) may be greater than the length (L1) of the first magnet (130-1) or/and the length of the second magnet (130-2) (L2>L1), It is not limited thereto, and in other embodiments, both may be the same.

In the embodiment, 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 applied to the third coil unit 230-1. It may be greater than the second electromagnetic force generated by the first magnet 130-1 and the third electromagnetic force generated by the fourth coil unit 230-2 and the second magnet 130-2. Accordingly, the embodiment can reduce the difference between the first electromagnetic force in the Y-axis direction and the sum of the second and third electromagnetic forces in the X-axis direction, and the driving force in the X-axis direction for the OIS movable part and the OIS movable part It is possible to reduce the difference in the driving force in the Y-axis direction, thereby improving the reliability of OIS operation.

In addition, the width K2 of the fifth coil unit 230-3 may be larger than the width K1 of the third coil unit 230-1 or/and the width of the fourth coil unit 230-2 (K2) >K1), but is not limited thereto, and in other embodiments, both may be the same.

The width W2 of the third magnet 130-3 may be greater than the width W1 of the first magnet 130-1 or/and the width of the second magnet 130-2 (W2>W1), It is not limited thereto, and in other embodiments, both may be the same.

Since W2>W1, the embodiment can reduce the difference between the sum of the first electromagnetic force in the Y-axis direction and the sum of the second and third electromagnetic forces in the X-axis direction, and the driving force in the X-axis direction for the OIS movable part It is possible to reduce the difference in the driving force in the Y-axis direction with respect to the OIS moving part, and improve the reliability of OIS operation.

The height (H2) of the third magnet (130-3) may be smaller than the height (H1) of the first magnet (130-1), or / and the height of the second magnet (130-2) (H2<H1) , The present invention is not limited thereto, and in another embodiment, both may be the same, and in another embodiment, the former may be larger than the latter.

Since H2 < H1, the embodiment can reduce the weight of the lens driving apparatus 100, thereby reducing power consumption for driving AF and/or OIS.

The length L3 of each of the first and second dummy 135a and 135b may be smaller than the length L2 of each of the first to third magnets 130-1 to 130-3 (L3<L2) However, the present invention is not limited thereto, and in other embodiments, the former may be the same as or greater than the latter.

Although the width W3 of each of the first and second dummy 135a and 135b may be smaller than the width of each of the first to third magnets 130-1 to 130-3 (W3<W1, W2), It is not limited thereto, and in other embodiments, the former may be the same as or greater than the latter.

The height H3 of each of the first and second dummy 135a and 135b may be smaller than the height H1 of each of the first and second magnets 130-1 and 130-2, and the third magnet ( Although it may be greater than the height H2 of 130-3) (H2<H3<H1), it is not limited thereto. In another embodiment, the height of each of the first and second dummy 135a and 135b may be equal to or greater than the height H1 of each of the first and second magnets 130-1 and 130-2. In another embodiment, the height of each of the first and second dummy 135a and 135b may be less than or equal to the height H2 of the third magnet 130-3.

The length M3 of the sensing coil 180 may be smaller than the lengths M1 and M2 of each of the third to fifth coil units 230-1 to 230-3 (M3<M1, M2), but is limited thereto. In other embodiments, the former may be the same as or greater than the latter.

The width K3 of the sensing coil 180 may be smaller than the width K2 of the fifth coil unit 230-3 (K3<K2). The width K3 of the sensing coil 180 may be the same as or smaller than the width K1 of each of the third and fourth coil units 230-1 and 230-2, but is not limited thereto, and other embodiments E may be greater than the latter.

The length (or height) of the sensing coil 180 in the optical axis direction may be greater than the length (or height) of each of the third to fifth coil units in the optical axis direction. Accordingly, the strength of the magnetic field of the sensing coil 180 may be increased, and the sensitivity of the first position sensor 170 may be improved. In another embodiment, the length (or height) of the sensing coil 180 in the optical axis direction may be the same as the length (or height) of each of the third to fifth coil units in the optical axis direction.

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

At the initial position of the OIS movable part, the first position sensor 170 may overlap the sensing coil 180 in the optical axis direction. The first position sensor 170 may not overlap with the dummy member 135 in the optical axis direction, but is not limited thereto. In another embodiment, at least a part of the first position sensor 170 may be a dummy member ( 135) and may overlap.

Here, the initial position of the OIS movable part may be the initial position of the OIS movable part supported by the support member 220 and the elastic members 150 and 160 in a state in which no driving signal is provided to the second coil 230. In addition, the initial position of the OIS movable part may be a position where the OIS movable part is placed when gravity acts from the bobbin 110 to the base 210, or vice versa, when the gravity acts from the base 210 to the bobbin 110. have.

At the initial position of the OIS movable unit, each of the first to third magnets 130-1 to 130-3 is one of the third to fifth coil units 230-1 to 230-3 in the optical axis direction. Can overlap with

The first sensor 240a may overlap with the first magnet 130-1 in the optical axis direction, and the second sensor 240b may overlap with the third magnet 130-3 in the optical axis direction.

13 and 14, the first sensor 240a overlaps the third coil unit 230-1 in the optical axis direction, and the second sensor 240b overlaps the fifth coil unit 230-3 in the optical axis direction. Although overlapped, it is not limited thereto, and in another embodiment, the first sensor may not overlap with the third coil unit in the optical axis direction, and the second sensor may not overlap with the fifth coil unit in the optical axis direction.

Referring to FIG. 14, the first position sensor 170 may be located within an area of the sensing coil 180. For example, the first position sensor 170 may be disposed under the sensing coil 180, the first sensor 240a may be disposed under the first magnet 130-1, and the second sensor 240b May be disposed under the third magnet 130-3.

In order to improve the sensitivity of the first position sensor 170, a sensing element (or sensing region) of the first position sensor 170 may overlap the sensing coil 180 in the optical axis direction.

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

Since the first position sensor 170 is disposed on a fixed part (eg, circuit board 250 and base 210), and the sensing coil 180 is disposed on an OIS movable part (eg, bobbin 110), OIS operation When the additional fixing part moves in a direction perpendicular to the optical axis, the alignment or relative positional relationship in the optical axis direction between the sensing coil 180 and the first position sensor 170 may be changed, and thus the first position sensor 170 The sensitivity of may be reduced or the sensitivity of the first position sensor 170 may be affected.

Within a stroke range of the OIS movable part in a direction perpendicular to the optical axis, the sensing element of the first position sensor 170 and at least a part of the sensing coil 180 may maintain a state of overlapping in the optical axis direction.

For example, at least a portion of the sensing coil 180 may be disposed between the first dummy 35A and the second dummy 35B, but is not limited thereto.

The AF movable part and the OIS movable part of the lens driving apparatus 100 may be supported by the elastic part. For example, the elastic portion may include at least one of the upper elastic member 150, the lower elastic member 160, and the support member 220.

For example, the elastic part may include a first elastic part elastically supporting the AF movable part with respect to the housing 140, and a second elastic part elastically supporting the OIS movable part with respect to the fixed part.

For example, the first elastic portion may include the upper elastic member 150 and the lower elastic member 160, and the second elastic portion may include the support member 220.

The OIS movable part supported by the fixed part by the first and second elastic parts may sag or move in the direction of gravity due to the influence of gravity.

Generally, when the AF position sensor is placed on the OIS moving part (e.g., housing or bobbin), the AF position sensor can detect the displacement in the optical axis direction of the AF moving part through feedback operation, so the AF moving part is deflected by the influence of gravity. Can be automatically corrected or compensated.

However, since the AF position sensor placed on the OIS movable part cannot detect the displacement in the optical axis direction of the OIS movable part relative to the fixed part, the deflection or movement of the OIS movable part due to the influence of gravity is automatically corrected by the AF position sensor or It cannot be compensated.

In the embodiment, since the first position sensor 170 is disposed on the fixed portion (for example, the circuit board 250 and the base 210), the AF movable portion caused by movement (or sagging) of the OIS movable portion due to the influence of gravity Movement (or sagging) of can be automatically compensated or corrected, and thus accurate AF driving can be performed, and reliability of AF operation can be improved.

FIG. 15A shows the arrangement of the sensing coil 180 and the first position sensor 170 for simulation, and FIG. 15B shows a change in the position of the sensing coil 180 of FIG. 15A according to the movement of the AF movable part in the optical axis direction. , FIG. 15C shows a change in the intensity of the magnetic field of the sensing coil 180 sensed by the first position sensor 170 according to the change in the position of the sensing coil 180 of FIG. 15B.

15A to 15C, the shape of the outer circumferential surface of the sensing coil 180 viewed from above may be a quadrangle, but is not limited thereto. The length (X1) of the outer peripheral surface of the sensing coil 180 may be 3.29 [mm], the width (Y1) of the outer peripheral surface of the sensing coil 180 may be 2.05 [mm], and the inner peripheral surface of the sensing coil 180 may be The length X2 may be 1.93 [mm], the width Y2 of the inner circumferential surface of the sensing coil 180 may be 0.74 [mm], and the length Z1 of the sensing coil 180 in the optical axis direction is 0.54 It can be [mm]. In addition, the driving signal Ia provided to the sensing coil 180 may be 100 [mA]. In addition, a separation distance d1 from the lower surface 17A of the first position sensor 170 to the lower surface 18A of the sensing coil 180 may be 0.43 [mm].

At the initial position of the AF movable part (eg, Z=0 position), the front stroke of the AF movable part may be 200 [µm], and the rear stroke of the AF movable part may be 200 [µm].

In FIG. 15C, the X axis represents the displacement (or position) of the sensing coil 180 in the optical axis direction, and the Y axis represents the change in the intensity of the magnetic field of the sensing coil 180 sensed by the first position sensor 170. g1 represents the change in the intensity of the magnetic field in the optical axis direction of the sensing coil 180 sensed by the first position sensor 170, and g2 represents the optical axis of the sensing coil 180 sensed by the first position sensor 170 It represents the change in the strength of the magnetic field in the vertical direction.

As shown in g1, the change in the magnetic field in the direction of the optical axis detected by the first position sensor 170 according to the displacement in the optical axis direction of the AF movable part may be within the range of -4.6[mT] to -8.2[mT]. And g1 may be a linear graph.

The output of the first position sensor 170 may be proportional to the strength of the magnetic field of the sensing coil 180 detected by the first position sensor 170, and the controller 830 of the camera module 200 or the terminal 200A The displacement in the optical axis direction of the AF movable part 780 may be sensed by using the output of the first position sensor 170.

In an 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 (230-1 to 230-3).

Among the three magnets 130-1 to 130-3, two magnets 130-1 and 130-2 are formed by interaction with the first and second coil units 120-1 and 120-2. The AF operation in the optical axis direction may be performed and the OIS operation in the X-axis direction perpendicular to the optical axis may be performed by interacting with the third and fourth coil units 230-1 and 230-2.

The remaining one of the three magnets 130-1 to 130-3 interacts with the fifth coil unit 230-3 to only operate OIS in the Y-axis direction perpendicular to the optical axis. Can be done.

Since the dummy member 135 is disposed on the opposite side of the third magnet 130-3, the embodiment can prevent oscillation due to weight eccentricity during OSI operation.

In general, the electromagnetic force in the X-axis direction due to the interaction between one magnet and one coil unit is smaller than the electromagnetic force in the Y-axis direction due to the interaction between two magnets and two coil units. And the difference between the electromagnetic force in the X-axis direction and the electromagnetic force in the Y-axis direction may cause a malfunction of OIS drive.

In order to reduce the difference between the electromagnetic force generated in the X-axis direction and the electromagnetic force generated in the Y-axis direction, the embodiment may be configured as follows.

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

Also, for example, the second winding number and the third winding number may be the same, but are not limited thereto. In another embodiment, the first winding number and the second winding number (or the third winding number) may be the same.

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

16 shows another embodiment of a lens driving device. Referring to FIG. 16, in another embodiment, the sensing coil 180 of the lens driving apparatus 100 may be replaced with a sensing magnet 180A.

For example, a sensing magnet 180A may be disposed on the bobbin 110 instead of the sensing coil 180. For example, the sensing magnet 180A may be coupled to the protrusion 116 of the bobbin 110. For example, the protrusion 116 of the bobbin 110 may have a groove in which the sensing magnet 180A is seated or disposed.

The sensing magnet 180A may have a cylindrical shape or a polyhedral shape, but is not limited thereto.

For example, the sensing magnet 180A may have a cylindrical shape in which a length in the optical axis direction is longer than a length in a direction perpendicular to the optical axis, but is not limited thereto.

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

The lens driving apparatus 100 according to the above-described embodiment may be implemented in various fields, for example, a camera module or an optical device, or may be used in a camera module or an optical device.

For example, the lens driving apparatus 100 according to the embodiment forms an image of an object in space by 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 a lens, or for optical measurement, image propagation or transmission, and the like. For example, the optical device according to the embodiment may include a portable terminal equipped with a smartphone and a camera.

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

Referring to FIG. 17, the camera module 200 includes a lens or lens barrel 400, a lens driving device 100, an adhesive member 612, a filter 610, a first holder 600, and a second holder 800. ), an image sensor 810, a motion sensor 820, a control unit 830, and a connector 840.

The lens or 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. In addition to the above-described adhesive role, the adhesive member 612 may serve to prevent foreign substances from flowing into the lens driving apparatus 100.

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 the light passing through the lens barrel 400 from entering 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 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 the light passing through the filter 610 can enter the image sensor 810.

The second holder 800 may be disposed under the first holder 600, and an image sensor 810 may be mounted on the second holder 600. The image sensor 810 is a portion where the light that has passed through the filter 610 is incident and an image including the light is formed.

The second holder 800 may be provided with various circuits, elements, control units, etc. to convert an image formed by 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 are coupled.

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 disposed to be spaced apart to face each other in the first direction.

The motion sensor 820 is 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 control unit 830 is mounted or disposed on the second holder 800. The second holder 800 may be electrically connected to the lens driving device 100. For example, the second holder 800 may be electrically connected to the circuit board 250 of the lens driving apparatus 100.

For example, a driving signal may be provided to the first position sensor 170 and the second position sensor 240 through the second holder 800, and the output signal of the first position sensor 170, the second position sensor ( The output signal of 240 may be transmitted to the second holder 800. For example, an output signal of the first position sensor 170 and an output signal of the second position sensor 240 may be received by the controller 830.

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

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

Referring to FIG. 18, the camera module 1000 may be a dual camera module including a first lens driving device 100-1 and a second lens driving device 100-2.

Each of the first lens driving device 100-1 and the second lens driving device 100-2 may be one of a lens driving device for auto focus (AF) or a lens driving device for optical image stabilizer (OIS). .

A lens driving device for AF refers to a device capable of performing only an auto focus function, and a lens driving device for OIS refers to a device capable of performing an auto focus function and an OIS (Optical Image Stabilizer) function.

For example, the first lens driving device 100-1 may be the embodiment 100 shown in FIG. 1, and the second lens driving device 100-2 may be the embodiment 100 shown in FIG. 1 or It may be a lens driving device for AF.

The camera module 1000 may further include a circuit board 1100 for mounting the first lens driving device 100-1 and the second lens driving device 100-2. In FIG. 18, the first lens driving device 100-1 and the second lens driving device 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, the first lens driving device may be disposed on the first circuit board, and the second lens driving device It may be disposed on the second circuit board.

By arranging the dummy member 135 of the first lens driving device 100-1 adjacent to the second lens driving device 100-2_, the first to third magnets of the first lens driving device 100-1 It is possible to reduce a decrease in the magnetic field between the magnets 130-1 to 130-3 and the magnet included in the second lens driving device 100-2, and thereby, the first lens driving device 100-1 and the second lens Reliability of driving the AF and/or OIS driving of each of the driving devices 100-2 can be ensured.

When the lens driving devices included in the dual or higher camera module have a sensing magnet corresponding to the AF position sensor, a malfunction may occur in the functions of the camera module such as AF operation or OIS operation due to the influence of the magnetic field of the sensing magnet. , This may reduce the resolution of the camera module.

19A shows an embodiment of the dual camera module of FIG. 18. Further, FIG. 19A shows the magnetic fields of the magnets 30A, 30B, 30C, 31A, 31B, and 31C and the sensing magnets 80A and 80B.

The dual camera module of FIG. 19A may include a first lens driving device 100A and a second lens driving device 100C.

The first lens driving apparatus 100A may include three driving magnets 30A, 30B, and 30C and one sensing magnet 80A.

For example, each of the first and second lens driving devices 100A and 100C is the lens driving device 100 according to the embodiment of FIG. 1, the lens driving device of FIG. 16 (or the lens driving device 100-2 of FIG. 20B). )), or a third lens driving device.

In each embodiment, a description of the lens driving apparatus 100 according to the embodiment of FIG. 1 or the lens driving apparatus of FIG. 16 (or the lens driving apparatus 100-2 of FIG. 20B) may be applied.

That is, the driving magnets 30A, 30B and 30C may correspond to the magnets 130-1 to 130-3 of the embodiments of FIGS. 1 and 16, and the sensing magnets 80A and 80B are the sensing magnets 180A. The description of may apply.

For example, the third lens driving device may be an embodiment in which the first position sensor 170A is disposed in the housing 140 instead of the base 210 in the lens driving device 100-2 of FIG. 20B.

In order to reduce magnetic field interference between the driving magnets 30A to 30B, 31A to 31C of the first and second lens driving devices 100A and 100C, the driving magnets 30A to 30B, 31A to 31C, as shown in FIG. 19A, and Sensing magnets 80A and 80B may be disposed.

19B illustrates another embodiment of the dual camera module of FIG. 18. Further, FIG. 19B shows the magnetic fields of the magnets 30A, 30B, 30C, 40A, 40B, 40C, and 40D and the sensing magnets 80A and 80B.

The dual camera module of FIG. 19B may include a first lens driving device 100A and a second lens driving device 100B. The first lens driving device may be replaced with a "first camera module", and the second lens driving device may be replaced with a "second camera module".

The first lens driving device 100A may be the same as described above, and the second lens driving device 100B may include four driving magnets 40A, 40B, 40C, and 40D.

20A shows another embodiment of the dual camera module 1000 of FIG. 18.

Referring to FIG. 20A, each of the first lens driving device 100-1 and the second lens driving device 100-2 may be the lens driving device 100 according to the embodiment of FIG. 1.

The fourth side of the first housing of the first lens driving device 100-1 on which the dummy members 135a and 135b are disposed is of the second lens driving device 100-2 on which the dummy members 135a and 135b are disposed. It may be disposed adjacent to each other with the fourth side of the second housing.

In addition, when viewed from the top, the first dummy members 135a and 135b of the first lens driving device 100-1 are the third magnet 130-3 and the second lens of the first lens driving device 100-1. It may be disposed between the second dummy members 135a and 135b of the driving device 100-2.

The fourth side portion 141-4 of the first housing of the first lens driving device 100-1 and the fourth side portion 141-4 of the second housing of the second lens driving device 100-2 are adjacent to each other. Can be placed

For example, the fourth side portion of the first housing and the fourth side portion of the second housing may be disposed parallel to each other, but are not limited thereto.

The first dummy members 135a and 135b of the first lens driving device 100-1 and the second dummy members 135a and 135b of the second lens driving device 100-2 may be disposed adjacent to each other.

The first bobbin of the first lens driving device 100-1 and the second bobbin of the second lens driving device 100-2 may be disposed to be spaced apart from each other.

The first magnet 130-1 of the first lens driving device 100-1 may be disposed on the first side of the first bobbin and may be spaced apart from the first side of the first bobbin or may be separated from the first side of the first bobbin. Can be placed adjacent to.

For example, the first magnet 130-1 of the first lens driving device 100-1 may be disposed between the first bobbin (eg, the first side of the first bobbin) and the first housing. For example, the first magnet 130-1 may be disposed in the first housing corresponding to the first side of the first bobbin.

The second magnet 130-2 of the first lens driving device 100-1 may be disposed on a second side of the first bobbin facing the first side of the first bobbin, and may be disposed on the second side of the first bobbin. It may be spaced apart from or disposed adjacent to the second side of the first bobbin.

For example, the second magnet 130-2 of the first lens driving device 100-1 may be disposed between the first bobbin (eg, the second side of the first bobbin) and the first housing. For example, the second magnet 130-2 may be disposed in the first housing corresponding to the second side of the first bobbin.

The third magnet 130-3 of the first lens driving device 100-1 may be disposed on a third side of the first bobbin adjacent to the first side of the first bobbin, and may be disposed on a third side of the first bobbin. It may be spaced apart from or disposed adjacent to the third side of the first bobbin.

For example, the third magnet 130-3 may be disposed between the first bobbin (eg, the third side of the first bobbin) and the first housing. For example, the third magnet 130-3 may be disposed in the first housing corresponding to the third side of the first bobbin.

The first magnet 130-1 of the second lens driving device 100-2 may be disposed on the first side of the second bobbin and may be spaced apart from the first side of the second bobbin or may be separated from the first side of the second bobbin. Can be placed adjacent to.

For example, the first magnet 130-1 of the second lens driving device 100-2 may be disposed between the second bobbin (eg, the first side of the second bobbin) and the second housing. For example, the first magnet 130-1 of the second lens driving device 100-2 may be disposed in the second housing corresponding to the first side of the second bobbin.

The second magnet 130-2 of the second lens driving device 100-2 may be disposed on the second side of the second bobbin facing the first side of the second bobbin, and may be disposed on the second side of the second bobbin. It may be spaced apart from or disposed adjacent to the second side of the second bobbin.

For example, the second magnet 130-2 of the second lens driving device 100-2 may be disposed between the second bobbin (eg, the second side of the second bobbin) and the second housing. For example, the second magnet 130-2 of the second lens driving device 100-2 may be disposed in the second housing corresponding to the second side of the second bobbin.

The third magnet 130-3 of the second lens driving device 100-2 may be disposed on the third side of the second bobbin adjacent to the first side of the second bobbin, and may be disposed on the third side of the second bobbin. It may be spaced apart from or disposed adjacent to the third side of the second bobbin.

For example, the third magnet 130-3 of the second lens driving device 100-2 may be disposed between the second bobbin (eg, the third side of the second bobbin) and the second housing. For example, the third magnet 130-3 of the second lens driving device 100-2 may be disposed in the second housing corresponding to the third side of the second bobbin.

The first dummy members 135a and 135b of the first lens driving device 100-1 may be disposed on the fourth side of the first bobbin facing the third side of the first bobbin, and the fourth It may be spaced apart from the side or disposed adjacent to the fourth side of the first bobbin.

The second dummy members 135a and 135b of the second lens driving apparatus 100-2 may be disposed on the fourth side of the second bobbin facing the third side of the second bobbin, and It may be spaced apart from the side or disposed adjacent to the fourth side of the second bobbin.

The first dummy members 135a and 135b of the first lens driving device 100-1 and the second dummy members 135a and 135b of the second lens driving device 100-2 are provided with the first lens driving device 100- It may be disposed to overlap each other in a direction from the third magnet 130-3 of 1) toward the third magnet 130-3 of the second lens driving apparatus 100-2.

Alternatively, when viewed from the top, the dummy members 135a and 135b of the first and second lens driving devices 100-1 and 100-2 are from the first bobbin (eg, the fourth side) to the second bobbin (eg, , The fourth side) may be disposed to overlap in a direction.

In addition, the first position sensor 170 of the first lens driving device 110-1 and the first position sensor 170A of the second lens driving device 100-2 are of the first lens driving device 110-1. The first base and the second base of the second lens driving apparatus 100-2 may be disposed in regions adjacent to each other.

In this case, regions adjacent to each other of the first and second bases may be regions corresponding to fourth sides of the first and second housings (or fourth sides of the first and second bobbins).

The sensing coil 180 (hereinafter referred to as "first sensing coil") of the first lens driving device 110-1 is one side (or side) of the first bobbin corresponding or opposite to the fourth side of the first housing , For example, may be disposed on the fourth side of the first bobbin.

The sensing coil 180 (hereinafter referred to as "second sensing coil") of the second lens driving device 110-2 is one side (or side) of the second bobbin corresponding or opposite to the fourth side of the second housing , For example, may be disposed on the fourth side of the second bobbin.

The first sensing coil and the second sensing coil may be disposed adjacent to each other.

The first sensing coil may be disposed on a fourth side of the first bobbin facing the third side of the first bobbin, and the second sensing coil is a fourth side of the second bobbin facing the third side of the second bobbin. Can be placed on

The first sensing coil and the second sensing coil are transferred from the third magnet 130-3 of the first lens driving device 100-1 to the third magnet 130-3 of the second lens driving device 100-2. It may be arranged to overlap each other in a direction facing.

Alternatively, when viewed from the top, the first and second sensing coils may be disposed to overlap in a direction from a first bobbin (eg, a fourth side) to a second bobbin (eg, a fourth side).

Since the embodiment of FIG. 20A includes the sensing coil 180 instead of the sensing magnets 80A and 80B of FIG. 19A, it is possible to reduce the effect of magnetic field interference between adjacent sensing magnets of FIG. 19A, thereby reducing the magnetic field interference. It is possible to prevent errors in the AF operation according to.

Referring to FIGS. 20A and 1 to 15C, the camera module 1000 may include a first camera module 100-1 and a second camera module 100-2.

The first camera module 100-1 includes a first bobbin 110 of 100-1, a first AF coil 120 of 100-1 disposed on the first bobbin 110 of 100-1, and a first AF coil A first magnet 130 of 100-1 corresponding to (120 of 100-1), a first sensing coil 180 of 100-1 disposed on the first bobbin 110 of 100-1, and a first sensing It includes a first position sensor 170 corresponding to the coil (180 of 100-1).

The second camera module 100-2 includes a second bobbin 110 of 100-2 spaced apart from the first bobbin 110 of 100-2, and a second AF coil 120 of 100 disposed on the second bobbin. -2), a second magnet (130 of 100-2) corresponding to the second AF coil (120 of 100-2), a second sensing coil (180 of 100) disposed on the second bobbin (110 of 100-2) -2), and a second position sensor 170A corresponding to the second sensing coil 180 of 100-2.

The first sensing coil (180 of 100-1) and the second sensing coil (180 of 100-2) face each other and are adjacent to the first bobbin (110 of 100-1) and the second bobbin (110 of 100-2). It can be disposed on the sides.

Alternatively, the camera module 1000 may include a first camera module 100-1 and a second camera module 100-2.

The first camera module 100-1 includes a first cover 300 of 100-1, a first housing 140 of 100-1 disposed in the first cover 300 of 100-1, and a first housing 140. of 100-1), a first bobbin 110 of 100-1, a first AF coil 120 of 100-1 disposed in the first bobbin 110 of 100-1, and a first housing 140 of 100-1), a first magnet 130 of 100-1 corresponding to the first AF coil 120 of 100-1, a first sensing coil disposed on the first bobbin 110 of 100-1 ( 180 of 100-1), a first base 210 of 100-1 disposed under the first housing 140 of 100-1, and a first sensing coil disposed on the first base 210 of 100-1 A first position sensor 170 corresponding to (180 of 100-1) may be included.

The second camera module 100-2 includes a second housing 140 of 100-2 and a second housing disposed within the second cover 300 of 100-2 and the second cover 300 of 100-2. 140 of 100-2)), a second bobbin 110 of 100-2, a second AF coil 120 of 100-2 disposed in the second bobbin 110 of 100-2, and a second housing ( 140 of 100-2) and the second magnet 130 of 100-2 corresponding to the second AF coil 120 of 100-2, the second sensing disposed on the second bobbin 110 of 100-2 The coil 180 of 100-2, the second base 210 of 100-2 disposed under the second housing 140 of 100-2, and the second base 210 of 100-2, A second position sensor 170A of 100-2 corresponding to the sensing coil 180 of 100-2 may be included.

The first sensing coil (180 of 100-1) and the second sensing coil (180 of 100-2) face each other and are adjacent to the first bobbin (110 of 100-1) and the second bobbin (110 of 100-2). It can be disposed on the sides.

The first sensing coil 180 of 100-1 and the first position sensor 170 of 100-1 may overlap each other in the optical axis direction, and the second sensing coil 180 of 100-2 and the second position sensor ( 170 of 100-2) may overlap each other in the optical axis direction.

The first cover (300 of 100-1) extends from the first top plate and the first top plate, and is located on the opposite side of the 1-1 side plate and the 1-1 side plate adjacent to the second cover (300 of 100-2). It may include a 1-2 side plate. The second cover (300 of 100-2) extends from the second upper plate and the second upper plate, and the 2-1 side plate facing the 1-1 side plate, and the 2-2 located opposite the side plate 2-1. It may include a side plate.

The first sensing coil 180 of 100-1 is adjacent to the 1-1 side plate than the 1-2 side plate, and the second sensing coil 180 of 100-2 is the 2-1 side plate than the 2-2 side plate. Can be adjacent to

The first cover 300 of 100-1 may include a 1-3th side plate and a 1-4th side plate disposed between the 1-1th side plate and the 1-2th side plate and facing each other.

The second cover 300 of 100-2 may include a 2-3 side plate and a 2-4 side plate disposed between the 2-1 side plate and the 2-2 side plate and facing each other.

The first magnet (130 of 100-1) is a 1-1 magnet (130-1 of 100-1) corresponding to the side plate 1-3, the 1-2 magnet (130-) corresponding to the side plate 1-4 2 of 100-1), and a 1-3th magnet 130-3 of 100-1 corresponding to the 1-2th side plate may be included.

The second magnet (130 of 100-2) is a 2-1 magnet (130-1 of 100-2) corresponding to the 2-3 side plate, the 2-2 magnet (130-) corresponding to the 2-4 side plate 2 of 100-2), and a 2-3rd magnet 130-3 of 100-2 corresponding to the 2-2 side plate may be included.

The first dummy member 135a, 135b of 100-1 is one side of the first housing 140 of 100-1 corresponding to the 1-1 side plate (for example, the fourth side portion 141-4 of 100-1 )). The second dummy member 135a, 135b of 100-2 is one side of the second housing 140 of 100-2 corresponding to the 2-1 side plate (for example, the fourth side portion 141-4 of 100-2 )).

The fourth side (141-4 of 100-1) of the first housing (140 of 100-1) and the fourth side (141-4 of 100-4) of the second housing (140 of 100-2) It can be arranged facing each other.

The first sensing coil (180 of 100-1) and the second sensing coil (180 of 100-2) are formed with a 1-3 magnet (130-3 of 100-1) and a 2-3 magnet (130-3 of 100). -2) can be placed between.

The camera module includes a second coil (230 of 100-1) overlapping with the first magnet (130 of 100-1) in the optical axis direction, and a second coil (230 of 100-1) overlapping with the second magnet (130 of 100-2) in the optical axis direction. -2 coil (230 of 100-2), a first circuit board electrically connected to the first position sensor (170 of 100-1), and a second electrically connected to the second position sensor (170 of 100-2) It may include two circuit boards.

20B shows an embodiment of the dual camera module 1000 of FIG. 18.

Referring to FIG. 20B, the first lens driving device 100-1 may be the lens driving device 100 according to the embodiment of FIG. 1, and the second lens driving device 100-2 is the embodiment of FIG. 16. It may be a lens driving device according to.

In FIG. 20B, the sensing coil 180 of the first lens driving device 100-1 and the sensing magnet 180A of the second lens driving device 100-2 may be disposed adjacent to each other. Since the effect of magnetic field interference is not significant between the sensing coil 180 and the sensing magnet 180A, the embodiment can prevent an error in AF operation due to magnetic field interference.

In the dual camera module according to another embodiment, the second lens driving device 100-2 may be replaced with the first lens driving device 100-1 in FIG. 20B, and at this time, the first and second lens driving devices The sensing magnets are adjacent and may be disposed to face each other as shown in FIG. 19A.

Referring to FIGS. 20B and 1 to 15C, the camera module 1000 may include a first camera module 100-1 and a second camera module 100-2.

The first camera module 100-1 includes a first bobbin 110 of 100-1, a first AF coil 120 of 100-1 disposed on the first bobbin 110 of 100-1, and a first AF coil A first magnet 130 of 100-1 corresponding to (120 of 100-1), a first sensing coil 180 of 100-1 disposed on the first bobbin 110 of 100-1, and a first sensing It may include a first position sensor 170 corresponding to the coil (180 of 100-1).

The second camera module 100-2 includes a second bobbin 110 of 100-2 spaced apart from the first bobbin 110 of 100-2, and a second AF coil 120 of 100 disposed on the second bobbin. -2), a second magnet (130 of 100-2) corresponding to the second AF coil (120 of 100-2), a sensing magnet (180A) disposed on the second bobbin (110 of 100-2), and sensing It may include a second position sensor 170A corresponding to the magnet 180A.

The first sensing coil (180 of 100-1) and the sensing magnet (180A) are to be disposed on the sides of the first bobbin (110 of 100-1) and the second bobbin (110 of 100-2) facing each other and adjacent to each other. I can.

Alternatively, the camera module 1000 may include a first camera module 100-1 and a second camera module 100-2.

The first camera module 100-1 includes a first cover 300 of 100-1, a first housing 140 of 100-1 disposed in the first cover 300 of 100-1, and a first housing 140. of 100-1), a first bobbin 110 of 100-1, a first AF coil 120 of 100-1 disposed in the first bobbin 110 of 100-1, and a first housing 140 of 100-1), a first magnet 130 of 100-1 corresponding to the first AF coil 120 of 100-1, a first sensing coil disposed on the first bobbin 110 of 100-1 ( 180 of 100-1), a first base 210 of 100-1 disposed under the first housing 140 of 100-1, and a first sensing coil disposed on the first base 210 of 100-1 A first position sensor 170 corresponding to (180 of 100-1) may be included.

The second camera module 100-2 includes a second housing 140 of 100-2 and a second housing disposed within the second cover 300 of 100-2 and the second cover 300 of 100-2. 140 of 100-2)), a second bobbin 110 of 100-2, a second AF coil 120 of 100-2 disposed in the second bobbin 110 of 100-2, and a second housing ( 140 of 100-2), a second magnet 130 of 100-2 corresponding to the second AF coil 120 of 100-2, a sensing magnet disposed on the second bobbin 110 of 100-2 ( 180A), the second base 210 of 100-2 disposed under the second housing 140 of 100-2, and the second base 210 of 100-2 and corresponding to the sensing magnet 180A It may include a second position sensor (170A of 100-2).

The first sensing coil 180 of 100-1 and the first position sensor 170 of 100-1 may overlap each other in the optical axis direction, and the sensing magnet 180A and the second position sensor 170 of 100-2 May overlap each other in the direction of the optical axis.

The first cover (300 of 100-1) extends from the first top plate and the first top plate, and is located on the opposite side of the 1-1 side plate and the 1-1 side plate adjacent to the second cover (300 of 100-2). It may include a 1-2 side plate. The second cover (300 of 100-2) extends from the second upper plate and the second upper plate, and the 2-1 side plate facing the 1-1 side plate, and the 2-2 located opposite the side plate 2-1. It may include a side plate.

The first sensing coil 180 of 100-1 may be closer to the 1-1 side plate than the 1-2 -th side plate, and the sensing magnet 180A may be closer to the 2-1 side plate than the 2 -2 side plate.

The 1-1 to 1-4 side plates of the first cover (300 of 100-1) and the 2-1 to 2-4 side plates of the second cover (300 of 100-2), 1-3 Arrangement of magnets 130-1 to 130-3 of 100-1, Arrangement of 2-1 to 2-3 magnets 130-1 to 130-3 of 100-2, first And the arrangement of the second dummy members 135a, 135b of 100-1, and 100-2 may be described in eh 20a or may be applied mutatis mutandis.

The first sensing coil (180 of 100-1) and the sensing magnet (180A) are arranged between the 1-3 magnet (130-3 of 100-1) and the 2-3 magnet (130-3 of 100-2) Can be.

20C shows an embodiment of the dual camera module 1000 of FIG. 18.

Referring to FIG. 20C, the first lens driving device 100-1 and the second lens driving device 100-2 may be a lens driving device according to the embodiment of FIG. 16.

In FIG. 20C, the sensing magnet 180A of the first lens driving device 100-1 and the sensing magnet 180A of the second lens driving device 100-2 may be disposed adjacent to each other.

As for the arrangement of the first sensing magnet 180A of 100-1 and the second sensing magnet 180A of 100-2 in FIG. 20C, the arrangement relationship of the first and second sensing coils in FIG. 20A may be applied or applied mutatis mutandis. .

21 is a perspective view of a portable terminal 200A according to an embodiment, and FIG. 22 is a configuration diagram of the portable terminal 200A shown in FIG. 21.

21 and 22, the portable terminal 200A (hereinafter referred to as "terminal") includes a body 850, a wireless communication unit 710, an A/V input unit 720, a sensing unit 740, and An output unit 750, a memory unit 760, an interface unit 770, a control unit 780, and a power supply unit 790 may be included.

The body 850 shown in FIG. 21 is in the form of a bar, 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 enable relative movement. , Swirl type, etc. may have various structures.

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 a wireless communication system or between the terminal 200A and a network in which the terminal 200A is located. For example, the wireless communication unit 710 may be configured to 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. have.

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

The camera 721 may include the camera modules 200 and 1000 according to the embodiment illustrated in FIG. 17 or 18.

The sensing unit 740 monitors the current state of the terminal 200A, such as the open/closed state of the terminal 200A, the position of the terminal 200A, the presence of user contact, the orientation of the terminal 200A, and acceleration/deceleration of the terminal 200A. By sensing, a sensing signal for controlling the operation of the terminal 200A may be generated. 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 a sensing function related to whether the power supply unit 790 supplies power and whether the interface unit 770 is coupled to an external device.

The input/output unit 750 is for generating an input or output related to visual, auditory, or tactile sense. The input/output unit 750 may generate input data for controlling the operation 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, an audio output module 752, and a touch screen panel 753. The keypad unit 730 may generate input data by inputting a keypad.

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

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 caused by a user's touch to a specific area of the touch screen into an electric input signal.

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

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

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 communication, and video calls.

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

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

The power supply unit 790 may receive external power or internal power under the control of the control unit 780 to supply power required for operation of each component.

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

Claims (20)

Board;
A housing disposed on the substrate;
A bobbin disposed in the housing;
A sensing coil disposed on the bobbin;
A first magnet, a second magnet, a third magnet, and a dummy member disposed on different sides of the housing;
A first coil including a first coil unit corresponding to the first magnet and a second coil unit corresponding to the second magnet; And
And a first position sensor disposed on the substrate and corresponding to the sensing coil,
The first magnet and the second magnet are located opposite to each other, the third magnet and the dummy member are located opposite to each other,
A driving signal is provided to the sensing coil, the first position sensor senses the strength of a magnetic field of the sensing coil, and outputs an output signal. The method of claim 1,
The lens driving device wherein the sensing coil overlaps with the first position sensor in an optical axis direction. The method of claim 1,
The bobbin includes a protrusion protruding from an outer surface,
The sensing coil is a lens driving device coupled to the protrusion of the bobbin. The method of claim 3,
The sensing coil has a ring shape including a central hole,
A lens driving device in which a central hole of the sensing coil is parallel to an optical axis. The method of claim 4,
The sensing coil is a lens driving device coupled to a lower surface of the protrusion. The method of claim 1,
The dummy member includes a first dummy and a second dummy spaced apart from each other,
At least a portion of the sensing coil is disposed between the first dummy and the second dummy. The method of claim 1,
A second coil including third to fifth coil units corresponding to the first to third magnets in an optical axis direction; And
A lens driving apparatus comprising a second position sensor disposed on the substrate and including a first sensor corresponding to the first magnet and a second sensor corresponding to the third magnet. The method of claim 7,
A lens driving device in which the sensing coil does not overlap with the third to fifth coil units in the optical axis direction. The method of claim 1,
The first position sensor is a Hall sensor, a driver IC including a Hall sensor, or a lens driving device that is a TMR (Tunnel Magnetoresistance) sensor. The method of claim 7,
An elastic member coupled to the bobbin and the housing; And
A lens driving apparatus comprising a support member connecting the elastic member and the substrate. Fixed part;
An AF movable part including a bobbin, and an OIS movable part including a housing;
A first elastic part supporting the AF movable part with respect to the housing;
A second elastic part supporting the OIS movable part with respect to the fixed part;
An AF coil disposed on the bobbin;
A sensing coil disposed on the bobbin;
A first magnet and a second magnet disposed on the housing and positioned opposite to each other;
A third magnet and a dummy member disposed in the housing and positioned opposite to each other;
First to third OIS coil units corresponding to the first to third magnets in an optical axis direction;
An AF position sensor disposed on the fixing unit and corresponding to the sensing coil in the optical axis direction; And
It is disposed on the fixing portion, and includes a first OIS sensor corresponding to the first magnet and a second OIS sensor corresponding to the third magnet,
A lens driving device configured to provide a driving signal to the sensing coil, the AF position sensor to detect the strength of a magnetic field of the sensing coil and to output an output signal. A first camera module; And
Including a second camera module,
The first camera module,
A first cover, a first housing disposed in the first cover, a first bobbin disposed in the first housing, a first AF coil disposed on the first bobbin, and the first AF coil disposed in the first housing A first magnet corresponding to the first magnet, a first sensing coil disposed on the first bobbin, a first base disposed under the first housing, and a first position disposed on the first base and corresponding to the first sensing coil Including a sensor,
The second camera module,
A second cover, a second housing disposed in the second cover, a second bobbin disposed in the second housing, a second AF coil disposed on the second bobbin, and the second AF coil disposed in the second housing A second magnet corresponding to the second magnet, a second sensing coil disposed on the second bobbin, a second base disposed under the second housing, and a second position disposed on the second base and corresponding to the second sensing coil Including a sensor,
The first sensing coil and the second sensing coil are disposed on side portions of the first bobbin and the second bobbin facing each other and adjacent to each other. The method of claim 12,
The first sensing coil and the first position sensor overlap each other in an optical axis direction, and the second sensing coil and the second position sensor overlap each other in the optical axis direction. The method of claim 12,
The first cover includes a first top plate, a 1-1 side plate extending from the first top plate and adjacent to the second cover, and a 1-2 side plate positioned opposite the 1-1 side plate,
The second cover includes a second top plate, a 2-1 side plate extending from the second top plate and facing the 1-1 side plate, and a 2-2 side plate positioned opposite the 2-1 side plate and,
The first sensing coil is adjacent to the side plate 1-1 than the side plate 1-2, and the second sensing coil is adjacent to the side plate 2-1 than the side plate 2-2. The method of claim 12,
The first cover includes a 1-3 th side plate and a 1-4 side plate disposed between the 1-1 side plate and the 1-2 side plate and facing each other,
The second cover includes a 2-3 side plate and a 2-4 side plate disposed between the 2-1 side plate and the 2-2 side plate and facing each other,
The first magnet is a 1-1 magnet corresponding to the 1-3 side plate, a 1-2 magnet corresponding to the 1-4 side plate, and a 1-3 magnet corresponding to the 1-2 side plate Including,
The second magnet may include a 2-1 magnet corresponding to the 2-3 side plate, a 2-2 magnet corresponding to the 2-4 side plate, and a 2-3 magnet corresponding to the 2-2 side plate Camera module comprising a. The method of claim 15,
A first dummy member disposed on one side of the first housing corresponding to the 1-1 side plate; And
A camera module including a second dummy member disposed on one side of the second housing corresponding to the 2-1 side plate. The method of claim 15,
A camera module wherein the first sensing coil and the second sensing coil are disposed between the 1-3rd magnet and the 2-3rd magnet. The method of claim 15,
A 2-1 coil overlapping the first magnet in the optical axis direction;
2-2 coils overlapping with the second magnet in the optical axis direction
A first circuit board electrically connected to the first position sensor; And
A camera module including a second circuit board electrically connected to the second position sensor. A first camera module; And
Including a second camera module,
The first camera module,
A first cover, a first housing disposed in the first cover, a first bobbin disposed in the first housing, a first AF coil disposed on the first bobbin, and the first AF coil disposed in the first housing A first magnet corresponding to, a sensing coil disposed on the first bobbin, a first base disposed under the first housing, and a first position sensor disposed on the first base and corresponding to the sensing coil, ,
The second camera module,
A second cover, a second housing disposed in the second cover, a second bobbin disposed in the second housing, a second AF coil disposed on the second bobbin, and the second AF coil disposed in the second housing A second magnet corresponding to, a sensing magnet disposed on the second bobbin, a second base disposed under the second housing, and a second position sensor disposed on the second base and corresponding to the sensing magnet, ,
The sensing coil and the sensing magnet are disposed on side portions of the first bobbin and the second bobbin facing each other and adjacent to each other. The method of claim 19,
The sensing coil and the first position sensor overlap each other in the optical axis direction, and the sensing magnet and the second position sensor overlap each other in the optical axis direction.

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