KR20190036789A - A lens moving unit, and camera module and optical instrument including the same - Google Patents

Abstract

An embodiment of the present invention comprises: a base including first, second, third and fourth pillar portions disposed on a body and at corners of the body; a bobbin disposed on the body; a magnet disposed on a first side surface of the bobbin; a first roller portion disposed in a first groove provided on a second side surface adjacent to the first side surface of the bobbin; a second roller portion disposed in a second groove provided on a third side surface adjacent to the first side surface of the bobbin; and a coil disposed between the first pillar portion and the second pillar portion against the magnet, wherein the first roller portion comes in contact with at least two areas of the first groove, the second roller portion comes in contact with at least two areas of the second groove, the first groove includes a first opening exposing a part of the first roller portion, the second groove includes a second opening exposing a part of the second roller portion, and the base includes a first support portion disposed in the first opening and coming in contact with the first roller portion, and a second support portion disposed in the second opening and coming in contact with the second roller portion.

Description

TECHNICAL FIELD [0001] The present invention relates to a lens driving device, a camera module including the lens driving device,

Embodiments relate to a lens driving apparatus, a camera module including the lens driving apparatus, and an optical apparatus.

It is difficult to apply the technology of a voice coil motor (VCM) used in a conventional camera module to a camera module for ultra small size and low power consumption, and related research has been actively conducted.

Demand and production of electronic products such as smart phones and mobile phones equipped with cameras are increasing. The camera for mobile phones is becoming more compact and smaller, and accordingly, the actuator is also becoming smaller, larger diameter, and multi-functional. In order to realize a high-resolution cellular phone camera, additional functions such as performance improvement of the cellular phone camera, autofocusing, shutter shake improvement, and zoom function are required.

The embodiment provides a lens driving apparatus capable of improving the AF driving speed, suppressing the flow of the bobbin when driving the AF, and improving the size of the magnet and the coil, and a camera module and an optical apparatus including the lens driving apparatus .

A lens driving apparatus according to an embodiment of the present invention includes a body including a body and a first pillar, a second pillar, a third pillar, and a fourth pillar, which are disposed at corner portions of the body; A bobbin disposed on the body; A magnet disposed on a first side of the bobbin; A first roller portion disposed in a first groove provided in a second side surface of the bobbin; A second roller portion disposed in a second groove provided on a third side surface of the bobbin; And a coil disposed between the first pole portion and the second pole portion corresponding to the magnet, wherein a first side surface of the bobbin is disposed between the second side surface and the third side surface, Wherein the first roller portion contacts at least two areas of the first groove and the second roller portion contacts at least two areas of the second groove and the first groove exposes a portion of the first roller portion The second groove including a second opening exposing a portion of the second roller portion, the base including a first support portion disposed in the first opening and contacting the first roller portion, And a second support portion disposed in the second opening and contacting the second roller portion.

The first support portion may protrude from the inner side surface of the first column portion and the second support portion may protrude from the inner side surface of the second column portion.

The first roller portion contacts four regions of the first groove, and the second roller portion contacts four regions of the second groove.

The lens driving device may further include a circuit board fixed to the base and to which the coil is coupled, and the circuit board may be fixed to the first and second pillars.

The circuit board may include a terminal electrically connected to the coil, and the terminal may include a first terminal and a second terminal, and the terminal may be disposed on the body of the base.

The lens driving apparatus may further include a magnetic body disposed on the base below the coil, the magnet acting on the magnet.

The magnetic body may be disposed on an outer surface of the base.

The magnetic body including a plate disposed on an outer surface of the body of the base; A first extension disposed on an outer surface of the first post and extending upwardly from the plate; And a second extension disposed on an outer surface of the second post and extending upwardly from the plate.

Each of the first roller portion and the second roller portion includes a plurality of rollers, each of the rollers is cylindrical, and each of the rollers is rotatable about an axis perpendicular to the optical axis.

Wherein the first roller portion is arranged to be inclined at a first angle with respect to the first reference line and the second roller portion is arranged to be inclined at a second angle with respect to the first reference line, The first angle may be a virtual straight line parallel to the direction toward the second post, and the first angle may be different from the second angle.

The lens driving device may further include a roller cover disposed on the upper, upper, or upper surface of the bobbin to prevent the first roller portion and the second roller portion from being separated from the first groove and the second groove .

The embodiment can improve the AF driving speed, suppress the flow of the bobbin during AF driving, and improve the size of the magnet and the coil.

1 is an exploded perspective view of a lens driving apparatus according to an embodiment.
2 is a perspective view of the bobbin and magnet shown in Fig.
Fig. 3 shows a perspective view of the first and second grooves and the first and second roller portions of the bobbin of Fig. 2;
4 is an enlarged view of the roller shown in Fig.
Figure 5 is a first perspective view of the base shown in Figure 1;
Figure 6 is a second perspective view of the base shown in Figure 1;
7 is a plan view of the lens driving apparatus except for the cover member.
8 is a sectional view of the lens driving apparatus shown in Fig. 7 in the AB direction.
9 is a cross-sectional view in the CD direction of the lens driving apparatus shown in Fig.
10 is a partially enlarged view of Fig.
11 shows a position sensor additionally provided in the lens driving device.
Figure 12 shows a cross-sectional view of an embodiment including the position sensor of Figure 11;
13A is a partial perspective view of another embodiment of the bobbin.
13B is a partial perspective view of another embodiment of the bobbin.
13C is a partial perspective view of another embodiment of the bobbin.
14 is an exploded perspective view of the camera module according to the embodiment.
15 is a perspective view of a portable terminal according to an embodiment.
FIG. 16 shows a configuration diagram of the portable terminal shown in FIG. 15. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

In describing an embodiment, when it is described as being formed "on or under" of each element, an upper or lower (on or under) Wherein both elements are in direct contact with each other or one or more other elements are indirectly formed between the two elements. Also, when expressed as "on or under", it may include not only an upward direction but also a downward direction with respect to one element.

Also, the terms "first" and "second", "upper / upper / upper" and "lower / lower / lower" used in the following description are intended to mean any physical or logical relationship or order May be used solely to distinguish one entity or element from another entity or element, without necessarily requiring or implying that such entity or element is a separate entity or element. The same reference numerals denote the same elements throughout the description of the drawings.

It is also to be understood that the terms "comprises", "comprising", or "having" as used herein are meant to imply that a component can be implied unless specifically stated to the contrary, But should be construed to include other elements.

Hereinafter, a lens driving apparatus according to an embodiment will be described with reference to the accompanying drawings. For convenience of explanation, the lens driving apparatus according to the embodiment is described using the Cartesian coordinate system (x, y, z), but may be described using another coordinate system, and the embodiment is not limited to this. In the drawings, the x and y axes indicate directions perpendicular to the z axis, which is the optical axis direction, and the z axis direction, which is the direction parallel to the optical axis OA or the optical axis OA, is referred to as a 'first direction' The axial direction may be referred to as a 'second direction', and the y-axis direction may be referred to as a 'third direction'.

An 'auto focusing device' applied to a small camera module of a mobile device such as a smart phone or a tablet PC is a device that automatically focuses an image of a subject on an image sensor surface. Such an auto focusing apparatus can be variously configured. In the lens driving apparatus according to an embodiment, an auto focus operation can be performed by moving an optical module including at least one lens in a first direction.

1 is an exploded perspective view of a lens driving apparatus 1100 according to an embodiment.

1, the lens driving apparatus 1100 includes a cover member 1300, a bobbin 1110, a coil 1120, a magnet 1130, a first roller portion 1150, A roller portion 1160, a circuit board 1190, a magnetic body 1195, and a base 1210. [

First, the cover member 1300 will be described.

The cover member 1300 accommodates other arrangements 1110, 1120, 1130, 1150, 1160, 1190, 1195 in the receiving space formed with the base 1210.

The cover member 1300 may be in the form of a box which is opened at the bottom and includes a top plate and side plates and a bottom end of the side plates of the cover member 1300 may be engaged with the base 1210. The shape of the top plate of the cover member 1300 may be polygonal, for example, rectangular, octagonal, or the like.

The cover member 1300 may be provided with an opening in the top plate for exposing the lens portion coupled to the bobbin 1110 to external light.

For example, the cover member 1300 may be made of a non-magnetic metal material such as SUS aluminum (Al), copper (Cu), tin (Sn) By using the non-magnetic cover member 1300, the embodiment can prevent the cover member 330 from sticking to the magnet 1130 and / or the magnetic body 1195.

At least one of the side plates of the cover member 1300 may be provided at its lower end with an adhesive member injection groove 1332 for injecting an adhesive member for adhesion with the base 1210. [

A groove 1334 for exposing the terminals 1091 and 1092 of the circuit board 1190 may be provided at the lower end of the side plate of the cover member 1300.

Next, the bobbin 1110 will be described.

FIG. 2 is a perspective view of the bobbin 1110 and the magnet 1130 shown in FIG. 1, and FIG. 3 is a perspective view of the first and second grooves 1051a and 1051b of the bobbin 1110 of FIG. Fig. 4 is an enlarged view of the roller P1 shown in Fig. 2. Fig.

2 to 4, the bobbin 1110 is positioned inside the pillars 216a to 216d of the base 1210 and is electrically connected to the bobbin 1110 in the first direction (the first direction) by the electromagnetic interaction between the coil 1120 and the magnet 1130. [ For example, the Z-axis direction). For example, the bobbin 1110 may be moved in a unidirectional, e.g., upward, direction at an initial position of the bobbin 1110.

The bobbin 1110 may have an opening 1101 for mounting a lens or lens barrel.

The shape of the opening 1101 of the bobbin 1110 may correspond to the shape of the lens or lens barrel to be mounted and may be, for example, circular, elliptical, or polygonal, but is not limited thereto.

The bobbin 1110 may include at least one stopper 111 disposed on an upper surface thereof. The stopper 111 of the bobbin 1110 may protrude from the upper surface of the bobbin 1110 in the first direction or the upward direction so that the upper surface of the bobbin 1110 may directly collide with the inner surface of the upper plate of the cover member 1300 Can be prevented.

The bobbin 1110 may have a seating groove 102 for seating the magnet 1130 on its outer surface. For example, the seating groove 102 may have a recessed structure from the outer surface of the bobbin 1110, and may have a bottom open shape to facilitate insertion or seating of the magnet 1130, but is not limited thereto .

The bobbin 1110 has side surfaces 110c-1 to 110c-4, side surfaces 110b-1 and 110c-2 between the side surfaces 110c-1 and 110c-2, side surfaces 110c- 3 between the side surface 110c-1 and the side surface 110c-1, between the side surface 110b-2 between the side surface 110c-1 and the side surface 110b-2 between the side surface 110c- 0.0 > 110b-4. ≪ / RTI >

The side surfaces 110c-1 to 110c-4 of the bobbin 1110 may correspond to the pillar portions 216a to 216d of the base 1210 and the side surfaces 110b-1 to 110b- 4 may correspond to the spaces between the pillars 216a to 216d of the base 1210. [

The bobbin 1110 may include protrusions 118a to 118d protruding from the outer surface 110b. For example, the outer surfaces of the protrusions 118a to 118d may be the side surfaces 110b-1 to 110b-4 of the bobbin 1110.

The seating groove 102 may be provided on a side surface of the first projection 118a of the bobbin 1110 and may have the same or the same shape as the magnet 1130. [

The bobbin 1110 is provided on the side surface 110c-2 to dispose the first groove 1051a and the second roller portion 1160 provided on the side surface 110c-1 for disposing the first roller portion 1150 And a second groove 1051b which is provided.

For example, the magnet 1130 may be disposed on the first side 110b-1 of the bobbin 1110, and the first groove 1051a may be disposed on the first side 110b-1 of the bobbin 1110, And the second groove 1051b may be provided on the third side 110c-2 adjacent to the first side 110b-1 of the bobbin 1110. The second side 105b- For example, the first side 110b-1 of the bobbin 1100 may be disposed between the second side 110c-1 and the third side 110c-2 of the bobbin 1100. For example, the first side 110b-1 of the bobbin 1100 may connect the second side 110c-1 and the third side 110c-2 of the bobbin 1110.

For example, the first groove 1051a may be disposed between the first protrusion 118a and the fourth protrusion 118d, and the second groove 1051b may be disposed between the first protrusion 118a and the second protrusion 118b As shown in FIG.

For example, the first groove 1051a may correspond to or coincide with at least one roller included in the first roller portion 1150, and the second groove 1051b may have a shape corresponding to or coincident with the at least one roller included in the second roller portion 1160 And may be shaped to correspond or coincide with at least one roller.

Each of the first groove 1051a and the second groove 1051b may have a structure that is recessed from the upper surface of the bobbin 1110.

For example, the first groove 1051a may include a first opening 1061a that opens to the side 110c-1 of the bobbin 1110, and the second groove 51b may include an opening to the side 110c- As shown in FIG.

The frictional force between the first and second roller portions 150 and 160 and the first and second grooves 1051a and 1051b of the bobbin 1110 is reduced by the first opening 1061a and the second opening 1061b And the desired frictional force between the first and second roller portions 1150 and 1160 and the bobbin 1110 can be obtained by adjusting the size of the opening.

A lubricant may be injected into the first groove 1051a and the second groove 1051b of the bobbin 1110 and the lubricant may be supplied to the first and second roller portions 1150 and 1160 and the first and second grooves 1051a And 1051b can be reduced, and the rotation of the first and second roller portions 1150 and 1160 can be smoothly performed.

Next, the first roller portion 1150 and the second roller portion 1160 will be described.

The first roller portion 1150 includes at least one roller (e.g., P1 to P3) and is disposed in the first groove 1051a of the bobbin 1110. [

The second roller portion 1160 includes at least one roller (e.g., Q1 to Q3) and is disposed in the second groove 1051b of the bobbin 1110. [

The first roller portion 1150 may contact at least two areas of the first groove 1051a of the bobbin 1110 and the second roller portion 1150 may contact the at least two regions of the second groove 1150 of the bobbin 1110. [ And at least two regions of the first electrode 1051b.

The first roller portion 1150 may contact the first support portion 1116a of the base 1210 and the second roller portion 150 may contact the second support portion 1116b of the base 1210. [

When the bobbin 1110 moves in the optical axis direction, the first roller portion 1150 and the second roller portion 1160, which are in contact with the first and second support portions 1116a and 1116b, Whereby it is possible to support the movement of the bobbin 1110 in the optical axis direction and to guide the movement of the bobbin 1110 in the optical axis direction.

A frictional force may be applied between the first and second roller portions 1150 and 1160 and the first and second supports 1116a and 1116b of the base 1210 and this frictional force may be applied to the first and second roller portions 1150 and 1160, 1160 and the first and second support portions 1116a, 1116b. That is, as the contact area between the two is increased, the frictional force may increase.

Each of the first and second roller portions 1150 and 1160 may include a plurality of rollers. For example, the number of rollers included in each of the first and second roller portions 1150 and 1160 may be two, three, four, or more.

For example, the first roller portion 1150 may include three rollers P1 to P3, and the second roller portion 1160 may include three rollers Q1 to Q3.

Referring to FIG. 3, the first groove 1051a may include a side surface 51 and a bottom surface 52.

For example, the side surface 51 of each of the first groove 1051a and the second groove 1051b may include the first to third side surfaces 51-1 to 51-3.

The first roller portion 1150 can contact the four regions of the first groove 1501a and the second roller portion 1160 can contact the four regions of the second groove 1501b .

For example, the first roller portion 1150 may contact two regions of the first side face 51-1 of the first groove 1501a and two regions of the second side face 51-1. The second roller portion 1160 can contact two regions of the first side face 51-1 of the second groove 1501b and two regions of the second side face 51-1.

The bottom 52 of the first groove 1051a may have a step from the lower surface of the bobbin 1110 in the direction of the optical axis. For example, the bottom 52 of the first groove 1051a may be positioned higher than the lower surface of the bobbin 1110 with respect to the lower surface of the bobbin 1110.

A groove 1160a or a hole may be formed in the bottom 52 of the first groove 1051a.

For example, the groove 1160a may be in the form of a through hole, but is not limited thereto.

The bottom 52 of the first groove 1051a may include a first bottom 1052a and a second bottom 1052b that are spaced apart from each other and between the first bottom 1052a and the second bottom 1052b, (1060a) may be disposed.

 The area of the bottom 52 of the first groove 1051a where the roller P3 is contacted by the groove 1060a can be reduced so that the frictional force between the roller P3 and the groove 1051a of the bobbin 1110 The frictional force between the roller P3 and the first supporting portion 1116a can be also reduced.

For example, the first side face 51-1 of the first groove 1051a may be provided with a first opening 1061a opened to the side face 110c-1 of the bobbin 1110. [

The first opening 1061a may expose a part or one surface of the rollers P1 to P3 inserted or disposed in the first groove 1051a.

The first opening 1061a may have a size sufficient for the first support portion 1116a to be inserted.

For example, the length D21 of the first opening 1061a in the transverse direction may be greater than the length D11 of the first supporting portion 1116a in the transverse direction (D21> D11) The length H21 of the first support portion 1116a may be greater than or equal to the length H11 of the first support portion 1116a in the vertical direction (H21? H11).

For example, the first support portion 1116a may be in contact with the rollers P1 to P3 disposed in the first groove 1051a inserted or disposed in the first opening 1061a, and the bobbin 1110, 1 groove 1051a.

For example, the second support portion 1116b may be inserted into or disposed in the second opening 1061b to be in contact with the rollers Q1 to Q3 disposed in the second groove 1051b, and the bobbin 1110, And may be spaced apart from the second groove 1051b.

The roller P1 may have a cylindrical shape, but is not limited thereto.

The length L of the roller P1 may be larger than the diameter R of the roller P1. For example, the ratio (R: L) of the diameter R of the roller P1 to the length L of the roller P1 may be 1: 1.5 to 1: 5.

For example, the ratio of diameter to length (R: L) may be 1: 2 to 1: 3.

For example, when the ratio (L / R) of the length of the roller to the diameter of the roller P1 is less than 1.5, the effect of preventing the bobbin 1110 from flowing in the X axis direction or the Y axis direction can be reduced.

If the ratio (L / R) of the length of the roller to the diameter of the roller P1 exceeds 5, the size of the bobbin 1110 for accommodating the roller may increase and the spatial interference with the magnet 1130 may occur .

The second groove 1051b provided in the bobbin 1110 may have the same shape as that of the first groove 1051a and the description of the first groove 1051a of FIGS. 2 and 3 is also the same as that of the second groove 1051b Lt; / RTI >

For example, the second groove 1051b may have a second opening 1061b, and the bottom of the second groove 1051b may have a groove 1061b in the form of a through-hole.

The description of the roller P1 in Fig. 4 can be equally applied to the remaining rollers P2 and P3 of the first roller portion 1150 and the rollers Q1 to Q3 of the second roller portion 1160 .

The embodiment may be applied to the upper, upper, or upper portion of the bobbin 1110 to prevent the first roller portion 1150 and the second roller portion 1160 from being separated from the first groove 1051a and the second groove 1051b. And a roller cover 1125 disposed on the side of the roller cover 1125. At this time, the roller cover 1125 may be expressed as "cover "," support portion ", or "departure prevention portion ".

The roller cover 1125 is disposed on the first groove 1051a and the second groove 1051b of the bobbin 1110 and the first roller portion 1150 and the second roller portion 1160 are disposed on the first groove 1051a And the second groove 1051b.

The roller cover 1125 may cover at least a part of the first groove 1051a and at least a part of the second groove 1051b.

The roller cover 1125 may overlap at least a part with the rollers P1, P2, P3 of the first roller portion 1150 in the direction of the optical axis.

The roller cover 1125 may overlap at least another portion with the rollers Q1, Q2, Q3 of the second roller portion 1160 in the direction of the optical axis.

The bobbin 1110 may be provided with a protrusion 119 for supporting the roller cover 1125 on the upper surface thereof. The protrusion 119 may be in contact with the upper portion of the inner surface of the opening 1101 of the bobbin 1110, but is not limited thereto.

For example, the protruding portion 119 is connected to one end of the curved portion 119a, which is in contact with the inner surface of the opening 1101 of the bobbin 1110, A first extending portion 119b extending in a direction toward the side surface 110b-4 of the bobbin 1110 and a second extending portion 119b connected to the other end of the bending portion 119a and extending from the side surface 110b- And a second extending portion 119c extending toward the side surface 110b-2 of the base portion 110b.

Each of the first and second extensions 119b and 119c may be in the form of a straight line or a line, but is not limited thereto, and may be curved in other embodiments.

The stopper 111 may be positioned on the upper surface between the protruding portion 119 of the bobbin 1110, for example, the curved portion 119a and the side surface 110b-1 of the bobbin 1110.

Referring to FIG. 7, a roller cover 1125 may be disposed on the upper, or upper, surface of the bobbin 110. For example, the roller cover 1125 may be plastic, and may be an injection, but is not limited thereto. In other embodiments, roller cover 1125 may be a magnetic material or metal.

For example, the roller cover 1125 may cover one area (e.g., a second area) of the upper surface of the bobbin 110 that abuts the second side 110c-1 of the bobbin 110, (E.g., a third region) of the upper surface of the bobbin 110 in contact with the bobbin 110c-2.

For example, the roller cover 1125 may have another area (e.g., a first area) of the upper surface of the bobbin 110 contacting the first side 110b-1 of the bobbin 110, a second area, Area. ≪ / RTI >

The roller cover 1125 is connected to one end of the curved portion 1125a corresponding to the opening 1101 of the bobbin 1110 and is connected to one end of the curved portion 1125a on the side 110b- And a second extending portion 1125b connected to the other end of the curved portion 119a and extending in a direction from the side surface 110b-4 of the bobbin 1110 toward the side surface 110b-2 And may include a second extending portion 1125c extending therefrom.

For example, the curved portion 1125a of the roller cover 1125 may correspond to the curved portion 119a of the protruding portion 119 of the bobbin 1110, and the protrusions 1125a and 119a may contact with each other.

For example, the curved portion 1125a of the roller cover 1125 may include a curved surface or curved side in contact with the curved portion 119a of the projection 119. [

For example, the first extension portion 1125b of the roller cover 1125 may correspond to the first extension portion 119b of the projection 119 of the bobbin 1110, and the protrusions 1125b and 119b may contact with each other.

For example, the second extended portion 1125c of the roller cover 1125 may correspond to the second extended portion 119c of the protruding portion 119 of the bobbin 1110, and the protrusions 1125c and 119c may contact with each other.

The curved portion 1125a of the roller cover 1125 may be provided with a groove 1125-1 corresponding to the stopper 111 and a part of the stopper 111 may be formed in the groove 1125-1 of the roller cover 1125, So that the contact area between the roller cover 1125 and the bobbin 1110 can be increased and the coupling force between the roller cover 1125 and the bobbin 1110 can be improved. The roller cover 1125 may be attached or bonded to the bobbin 1110 by an adhesive member.

For example, the groove 1125-1 of the roller cover 1125 may be located on the opposite side of the curved surface (or the side of the curved line) in contact with the curved portion 119a of the projection 119 of the roller cover 1125.

In place of the roller cover 1125 in the other embodiment, the first projection 1051 and the second projection 1051b provided on the upper plate of the cover member 1300 and corresponding to the first projection 1051a and the second projection 1051b corresponding to the first projection 1051a, Two protrusions may be provided.

Next, the magnet 1130 will be described.

The magnet 1130 is disposed or mounted on the bobbin 1110.

For example, the magnet 1130 may be disposed in the seating groove 102 provided on the outer surface of the side surface 110b1 of the bobbin 1110, for example, the first projection 118a.

The shape of the magnet 1130 may have a shape corresponding to the side surface 110b-1 of the bobbin 1110, for example, a rectangular parallelepiped shape, but is not limited thereto.

The magnet 1130 may be a bipolar magnet to enhance a driving force by an electromagnetic interaction with the coil 1120, but is not limited thereto.

For example, the magnet 1130 may be a bipolar magnet divided into two in the direction perpendicular to the optical axis OA. At this time, the magnet 1130 may be realized by ferrite, alnico, rare earth magnet, or the like.

For example, the magnet 1130 may include a first magnet portion 31 including an N pole and an S pole, a second magnet portion 32 including an S pole and an N pole, and a non-magnetic partition wall 33 have.

The first magnet part 31 and the second magnet part 32 may be spaced apart from each other and the nonmagnetic partition wall 33 may be positioned between the first magnet part 31 and the second magnet part 32 .

Nonmagnetic bulkheads may include sections that are substantially non-magnetic and have little polarity, and may be filled with air or nonmagnetic materials and may be referred to as a "Neutral Zone ".

In another embodiment, the magnet 1130 may be implemented as a unipolar magnet including S and N poles.

Next, the base 1210 will be described.

FIG. 5 is a first perspective view of the base 1210 shown in FIG. 1, and FIG. 6 is a second perspective view of the base 1210 shown in FIG.

Referring to FIGS. 1, 5, and 6, the base 1210 is coupled with the cover member 1300 and forms a receiving space for the bobbin 1110 together with the cover member 1300.

The base 1210 may have an opening 301 corresponding to the opening of the cover member 1300 and / or the opening of the bobbin 1110. The base 1210 may have a shape corresponding to or corresponding to the cover member 1300, for example, a rectangular shape.

The base 1210 may include a body 213 having an opening 301 and pillars 216a-216d projecting from the body 213. [

The body 213 of the base 1210 may include side portions 218a through 218d positioned between the corner portions 217a through 217d and the corner portions 217a through 217d.

Each of the pillars 216a to 216d may be disposed at a corresponding one of the corner portions 217a to 217d of the body 213. [

For example, the base 1210 includes a first pillar 216a protruding upward from the first corner 217a at a predetermined height, a second pillar 216b protruding a predetermined height from the second corner 217b, A third pillar 216c protruding a predetermined height from the third corner 217c and a fourth pillar 216d protruding a predetermined height from the fourth corner 217d.

The "pillars" of the base 1210 may be represented by the term "protrusions ".

For example, each of the pillars 216a to 216d may be a polygonal columnar shape or a circular or elliptical columnar shape that protrudes in the vertical direction with respect to the upper surface of the body 213 of the base 1210, but is not limited thereto .

For example, the cross-sectional shape of each of the pillars 216a to 216d may be a polygonal shape such as an "a" shape or a triangular shape, but is not limited thereto.

For example, the lateral length of each of the side portions 218a to 218d of the body 213 of the base 1210 is longer than the lateral length of each of the corner portions 217a to 217d of the body 213 of the base 1210 But is not limited thereto.

An opening may be provided between adjacent two post portions 216a and 216b, 216b and 216c, 216c and 216d, 216d and 216a of the base 1210.

The heights of the pillars 216a to 216d may be equal to each other with respect to the upper surface of the body 213 of the base 1210, but the present invention is not limited thereto.

The base 1210 may have a stopper 23 protruding from the upper surface of the body 213. For example, at least one, e.g., two, stoppers 23 may be disposed on the upper surface of each of the second side portion 218b and the fourth side portion 218d of the body 213, but the position and number thereof are not limited thereto. The stopper 23 of the base 1210 may be replaced with a "lower stopper ".

The stopper 23 can prevent the lower or lower end of the bobbin 1110 from directly colliding with the body 213 of the base 1210. [

The base 1210 may include a stopper 31 disposed on an upper surface or an upper surface of the pillars 216a to 216d. The stopper 31 of the base 1210 can be replaced with an "upper stopper ".

For example, the stopper 31 of the base 1210 may have a structure protruding in the direction of the optical axis with reference to the upper surface of the pillars 216a to 216d.

The stopper 31 of the base 1210 may serve to secure a space or a gap through which the bobbin 1110 can move during AF driving.

A step 211 may be provided at the lower side of the outer surface of the body 213 of the base 1210. The step 211 may contact the lower ends of the side plates of the cover member 1300, Can be guided. At this time, the step 211 of the base 1210 and the lower ends of the side plates of the cover member 1300 may be adhesively fixed and sealed by an adhesive or the like.

The base 1210 may include a first support portion 1116a provided on the inner surface of the first column portion 216a and a second support portion 1116b provided on the inner surface of the second column portion 216b .

The first support portion 1116a may protrude from the inner surface of the first column portion 216a and the second support portion 1116b may protrude from the inner surface of the second column portion 216b.

The first support portion 1116a may have a columnar shape, for example, a semicircular columnar shape projecting from the inner side surface of the first columnar portion 216a, but it is not limited thereto and may have a columnar shape of various shapes.

The second support portion 1116b may be a columnar shape protruding from the inner side surface of the second columnar portion 216b, for example, a semicircular columnar shape, but is not limited thereto, and may have a columnar shape of various shapes.

For example, the inner surface of the first post 216a may be a side facing the side surface 110c-1 of the bobbin 1110, and the inner surface of the second post 216b may be a side surface of the bobbin 1110 110c-2.

For example, the first supporting portion 1116a and the second supporting portion 1116b may be symmetrical with respect to the first side 218a of the base 1210, but the present invention is not limited thereto.

6, the first support portion 1116a may extend from the lower surface of the first columnar portion 216a to the upper surface, and the upper or upper portion of the first support portion 1116a may extend from the upper surface of the first columnar portion 216a And may be located on the same plane as the upper surface of the first column portion 216a, but the present invention is not limited thereto.

The second support portion 1116b may extend from the lower surface of the second column portion 216b to the upper surface and the upper or upper portion of the second support portion 1116b may contact the upper surface of the second column portion 216b, But may be positioned on the same plane as the upper surface of the two-post portion 216b, but the present invention is not limited thereto.

In other embodiments, the top or top of the first support portion 1116a may be spaced from the top surface of the first post 216a. The lower end or lower portion of the first support portion 1116a may be spaced apart from the upper surface of the body 213 of the base 1210. [

Or in other embodiments, the upper or upper portion of the second support portion 1116b may be spaced from the upper surface of the second post 216b. The lower end or lower portion of the second support portion 1116b may be spaced apart from the upper surface of the body 213 of the base 1210. [

The base 1210 may include first and second pillar portions 216a and 216b and a first mounting groove 41 and a second mounting groove 42 formed in the body 213. [

The first mounting groove 41 and the second mounting groove 42 may have a stepped structure or a two-stepped structure with reference to the outer surfaces of the first and second post portions 216a and 216b of the base 1210. [

The first mounting groove 41 may be formed on an outer surface of the first and second post portions 216a and 216b and an outer surface of the first side portion 218a of the body 213, May have the same or matching shape.

The second mounting groove 42 can be located in the first mounting groove 41 and the outer surface of the first and second pillar portions 216a and 216b and the outer surface of the first side portion 218a of the body 213 And may have a shape identical or coinciding with that of the magnetic body 1195.

Next, the circuit board 1190 will be described.

The circuit board 1190 is placed or fixed to the base 1210. For example, the circuit board 1190 may be secured to the first and second post portions 216a, 216b of the base 1210. [ Alternatively, for example, the circuit board 1190 may be disposed or secured to the first and second post portions 216a, 216b and the first side portion 218a of the body 213. [

For example, the circuit board 1190 may be disposed in the first mounting groove 41.

The circuit board 1190 may include a terminal electrically connected to the coil and the terminal of the circuit board may include a first terminal 1091 and a second terminal 1092. [ The terminals of the circuit board 1190 may be disposed on the body 213 of the base 1210. [

For example, the circuit board 1190 may be a printed circuit board or a flexible circuit board (Flexcible PCB).

Next, the coil 1120 will be described.

The coil 1120 is arranged, mounted, or fixed on the circuit board 1190 so as to correspond to or face the magnet 1130. For example, on the first side of the circuit board 1190 of the coil 1120 and the terminals 91 and 92 may be on the second side of the circuit board 1190. [

The first side of the circuit board 1190 may be the side facing the magnet 1130 and the second side of the circuit board 1190 may be the opposite side of the first side of the circuit board 1190. [

For example, the coil 1120 may be fixed or attached to the circuit board 1190 by an adhesive member, but is not limited thereto.

The coil 1120 may be positioned between the first pillar 216a and the second pillar 216b of the base 1210. [

For example, the coil 1120 may be a ring-shaped coil ring. For example, the coil 1120 may have a ring shape whose length in the lateral direction is longer than the length in the longitudinal direction.

A drive signal may be applied to the coil 1120 to generate an electromagnetic force due to an electromagnetic interaction with the magnet 1130. [ At this time, the driving signal provided to the coil 1120 may be a direct current, or may be in the form of a voltage or a current. Alternatively, for example, the driving signal provided to the coil 1120 may include at least one of a direct current signal and an alternating current signal.

The coil 1120 provided with the drive signal can perform an electromagnetic interaction with the magnet 1130 disposed on the bobbin 1110 and can be driven by the electromagnetic force generated by the electromagnetic interaction between the coil 1120 and the magnet 1130, The movable part can be moved in the first direction.

For example, by controlling the magnitude of the driving signal, the movement of the AF moving part in the first direction can be controlled, thereby performing the auto focusing function.

The AF moving part may include a bobbin 1110, and arrangements mounted on the bobbin 1110 and moving together with the bobbin 1110. For example, the AF moving part may include a bobbin 1110, and a magnet 1130.

The coil 1120 may be electrically connected to the first terminal 1091 and the second terminal 1092 of the circuit board 1190. For example, both ends of the coil 1120 can be electrically connected to pads (not shown) provided on the first surface of the circuit board 1190, and pads (not shown) 2 terminals 1091 and 1092, respectively.

A driving signal may be provided to the coil 1120 through the first and second terminals 91 and 92 of the circuit board 1190. [

7 is a plan view of the lens driving apparatus 1100 except for the cover member 1300. Fig. 8 is a sectional view in the AB direction of the lens driving apparatus 1100 shown in Fig. 7, and Fig. Sectional view of the driving apparatus 1100 in the CD direction.

Referring to FIG. 7, the center 7a of the opening 1101 of the bobbin 1110 is not aligned with or aligned with the center 7b of the base 1210.

For example, the center 7a of the opening 1101 of the bobbin 1110 may be located further from the magnet 1130 than the center 7b of the base 1210. For example, the center of the lens mounted on the bobbin 1110 may be located further from the magnet 1130 than the center 7b of the base 1210.

For example, the center 7b of the base 1210 may be located between the center 7a of the opening 1101 of the bobbin 1110 and the magnet 1130.

The protrusions 118a through 118d of the bobbin 1110 may be positioned between the pillars 216a through 216d of the base 1210. [

For example, each of the projections 118a through 118d of the bobbin 1110 may be positioned between two neighboring posts 216a and 216b, 216b and 216c, 216c and 216d, 216d and 216a. The projecting portions 118a to 118d of the bobbin 1110 are disposed in the spaces between the pillar portions 216a and 216b and 216b and 216c and 216c and 216d and 216d and 216a, Can be reduced or decreased.

Each of the rollers P1 to P3 and Q1 to Q3 of the first and second roller portions 1150 and 1160 may be in contact with the side surface 51 of the first and second grooves 1051a and 1051b. For example, the outer surface of each of the rollers P1 to P3, Q1 to Q3 may be in surface contact with the side surface 51 of the first and second grooves 51a, 51b.

In another embodiment, a plurality of protrusions may be provided on the side surface 51 of the first and second grooves 1051a and 1051b, and the plurality of protrusions may be formed on the outer surfaces of the rollers P1 to P3, Q1 to Q3, Can be contacted.

13A-13C are partial perspective views of another embodiment 1110A of the bobbin 1110. FIG.

13A to 13C, a plurality of protrusions 14a to 14c or 14d corresponding to the rollers P1 to P3 are provided on the side surface 51 of the first groove 1051a of the bobbin 1110A. .

13A, the projections 14a, 14b, and 14c may be disposed on the first side 51-1 and the second side 51-2 of the first groove 1051a, respectively.

13B, the protrusions 14a, 14b, and 14c may be disposed on the first to third sides 51-1, 51-2, and 51-3 of the first groove 1051a, respectively.

13A and 13B, the protrusions 14a, 14b, and 14c may be hemispherical or dome-shaped.

In Fig. 13C, the protrusions 14d may have a protruding shape in the form of a line or a straight line, and the cross section may be hemispherical or dome-shaped.

The outer circumferential surface or the side surface of each of the rollers P1 to P3 and Q1 to Q3 may be in contact with the plurality of protrusions 14a to 14d and the first to third sides 51-1 , 51-2, 51-3).

A plurality of protrusions corresponding to the rollers Q1 to Q3 may be provided on the side surface 51 of the second groove 1051b of the bobbin 1110A. The description of the protrusions 14a to 14d provided on the side surface 51 of the first groove 1051b may be applied to the second groove 1051b of the bobbin 1110A.

Since the rollers P1 to P3 and Q1 to Q3 in Figs. 13A to 13C can be in point contact or line contact with the projections 14a to 14d, as compared with the bobbin 1110 shown in Fig. 1, The frictional force between the bobbin 1110A and the rollers P1, P2, and P3 in Figs. 13A to 13C can be reduced.

8, at an initial position of the AF moving part (for example, the bobbin 1110), the coil 1120 is magnetized in the direction from the first pole part 216a toward the fourth pole part 216d by the magnet 1130 Can be overlapped.

Here, the initial position of the AF moving part, for example, the bobbin 1110, may be the initial position of the AF moving part without applying power to the coil 1120. In addition, the initial position of the AF moving part can be a position where the AF moving part is placed when gravity acts from the bobbin 1110 in the direction of the base 1210, or vice versa, when gravity acts in the direction of the bobbin 1110 from the base 1210 have.

For example, the upper portion 120-1 of the coil 1120 may overlap the first magnet portion 31 of the magnet 1130 in the direction from the first pole portion 216a toward the fourth pole portion 216d The lower portion 120-2 of the coil 1120 may overlap with the second magnet portion 32 of the magnet 1130 and the lower portion 120-2 of the coil 1120 may overlap with the second magnet portion 32 of the magnet 1130 and between the upper portion 120-1 and the lower portion 120-2 of the coil 1120 May be overlapped with the non-magnetic bulkhead 33 of the magnet 1130.

10 is a partially enlarged view of Fig. The description of FIG. 10 can also be applied to the second roller portion 1160 and the second support portion 1116b of the second post portion 216b.

Referring to FIGS. 7 and 10, the rollers P1 to P3 of the first roller portion 1150 may be disposed to be inclined at a first angle? 1 with respect to the first reference line 501.

The rollers Q1 to Q3 of the second roller portion 1160 may be arranged to be inclined at a second angle (not shown) with respect to the first reference line.

Here, the first reference line 501 may be a virtual straight line (e.g., X-axis) parallel to the direction from the first column portion 216a to the second column portion 216b. For example, the first reference line 501 may pass the point where the rollers (e.g., P1, P2, P3) of the first roller portion 1150 and the first support portion 1116a of the base 1210 meet. Or the first reference line may pass the point where the rollers (e.g., Q1, Q2, Q3) of the second roller portion 1160 and the second support portion 1116b of the base 1210 meet.

For example, the central axis 601 (see FIG. 4) of the roller (for example, P1) of the first roller portion 1150 can be inclined by the first angle? 1 with respect to the first reference line 501. Also, for example, the center axis of the roller (e.g., Q1) of the second roller portion 1160 may be inclined by a second angle with respect to the first reference line.

For example, the first angle? 1 may be an angle between the first reference line 501 and the center axis 601 (see FIG. 4) of the roller (for example, P1) of the first roller portion 1150, (E.g., Q1) of the second roller portion 1160 and the first reference line.

For example, the first angle? 1 may be an angle at which the center axis 601 of the roller (for example, P1) of the first roller portion 1150 is rotated clockwise with respect to the first reference line 501.

The second angle may be an angle at which the central axis of the roller (e.g., Q1) of the second roller portion 1160 is rotated clockwise with respect to the first reference line.

For example, the central axis 601 (see FIG. 4) of the roller (e.g., P1) may be an axis passing through the center of the roller (e.g., P1) and parallel to the longitudinal direction of the roller (e.g., P1). For example, the center of the roller (e.g., P1) may be the center of the diameter. A description of the center axis 601 of the rollers (e.g., P1, P2, and P3) of the first roller portion 1150 may be made on the center axes of the rollers (e.g., Q1, Q2, and Q3) of the second roller portion 1160 Can be applied.

For example, the rollers (e.g., P1, P2, P3) of the first roller portion 1150 may be arranged such that the center axis 601 is perpendicular to the optical axis OA, .

Also, for example, the rollers (e.g., Q1, Q2, Q3) of the second roller portion 1160 can be arranged so that the central axis is perpendicular to the optical axis OA and can rotate about the central axis.

The first angle? 1 and the second angle may be different from each other.

For example, the first angle? 1 may be between 30 degrees and 60 degrees, and the second angle may be between 120 degrees and 150 degrees. For example, the second angle may be a value obtained by subtracting the first angle? 1 from 180 degrees.

Or, for example, the first angle [theta] 1 may be between 40 degrees and 50 degrees.

Or, for example, the first angle [theta] 1 may be 43 degrees to 47 degrees.

For example, the first angle [theta] 1 may be 45 degrees.

When the first angle? 1 is less than 40 degrees, the effect of suppressing the flow of the bobbin 1110 in the X axis direction can be reduced. When the first angle? 1 is less than 40 degrees, The effect of suppressing the flow in the X-axis direction can be reduced, and the effect of suppressing the flow of the bobbin 1110 in the Y-axis direction can be reduced when the first angle? 1 is more than 60 degrees.

The rollers P1 to P3 of the first roller portion 1150 are arranged to be inclined at a first angle? 1 with respect to the first reference line 501 and the rollers Q1 to Q3 of the second roller portion 1160 Is parallel to the first reference line 501 or parallel to the second reference line 502 in the direction parallel to the first reference line 501 The flow of the bobbin 1110 can be suppressed. For example, the second reference line 502 may be an imaginary straight line perpendicular to the first reference line 501.

For example, when the first angle? 1 is 45 degrees and the second angle is 135 degrees, the rollers P1 to P3 of the first roller portion 1150 and the rollers Q1 of the second roller portion 1160 To Q3 can suppress the flow of the bobbin 1110 in a balanced manner in the X-axis direction and the Y-axis direction.

For example, the center line 503 of the first support portion 1116a of the base 1210 and the center axis 601 of the rollers of the first roller portion 1150 (e.g., P1, P2, or P3) The central axis of the second support portion 1116b of the base 1210 and the center axis of the rollers of the second roller portion 1160 (e.g., Q1, Q2, or Q3) may be perpendicular to each other.

The center line 503 of the first support portion 1116a may be a line that bisects the first support portion 1116a after passing a point of contact with the roller of the first roller portion 1150 (e.g., P1, P2, or P3). For example, the center line 503 may be a line bisecting the first support portion 1116a symmetrically.

The center line of the second support portion 1116b may be a line passing through a point of contact with the roller (e.g., Q1, Q2, or Q3) of the second roller portion 1160 and bisecting the second support portion 1116b. For example, the center line of the second support portion 1116b may be a line bisecting the second support portion 1116b symmetrically.

10, the description of the arrangement of the rollers P1 to P3 of the first roller portion 1150 may be equally applicable to the arrangement of the rollers Q1 to Q3 of the second roller portion 1160. [

7, the first roller portion 1150 and the second roller portion 1160 are parallel to the direction from the first pillar portion 216a to the fourth pillar portion 216d, and the opening of the bobbin 1110 (Refer to FIG. 7) passing through the center of the upper surface 1101.

Next, the magnetic body 1195 will be described.

The magnetic body 1195 is disposed on the base 1210 and can be positioned under the coil 1120. [ The magnetic body 1195 may be attracted to the magnet 1130.

For example, the magnetic body 195 may be positioned below the magnet 1130 with respect to the lower surface of the base 1210, and may suppress tilt when the bobbin 1110 is moved. The magnetic body 1195 may be represented by a "tilt suppression portion", a "tilt correction portion", or a "tilt control portion" in the sense that the tilt of the bobbin 1110 is suppressed.

The lens driving apparatus 1100 according to the embodiment is configured such that the magnet 1130 is disposed on only one side 110b-1 of the bobbin 1110 and only one coil 1120 is disposed corresponding to one magnet 1130 There may be an electromagnetic imbalance between any one side (e.g., 110b-1) of the bobbin 1110 on which the magnets 1130 are disposed and the opposite side 110b-3 thereof.

Such unbalance of the electromagnetic force can cause tilting when the bobbin 1110 moves. Since the magnetic material 1195 is made of a material adhered to the magnet 1130, it is possible to suppress such tilting.

The magnetic body 1195 may be made of a material attached to the magnet, for example, a magnetic body (for example, a magnetic metallic material).

In another embodiment, the magnetic body 1195 may be embodied as a material that adheres to the magnet, such as a metal material (e.g., iron).

The magnetic body 1195 is disposed on the outer surface of the base 1210.

For example, the magnetic substance 1195 may be disposed on the outer surfaces of the first and second post portions 216a and 216b and the outer surface of the first side portion 218a of the body 213 of the base 1210. For example, the magnetic substance 1195 may be disposed in the second mounting groove 42. [

The magnetic body 1195 may be in the form of a plate.

For example, the magnetic body 1195 includes a plate 1195-1 disposed on the outer surface of the body 213, a plate 1195-1 disposed on the outer surface of the first column portion 216a and extending upward from one end of the plate 1195-1 1 extension portion 1195-2 and a second extension portion 1195-3 disposed on the outer surface of the second post portion 216b and extending upward from the other end of the plate 1195-1.

The plate 1195-1 of the magnetic body 1195 may be disposed on the outer surface of the first side portion 218a of the body 213 of the base 1210. [ For example, the magnetic substance 1195 can be fixed or attached to the base 1210 by the adhesive member.

The first extension portion 1195-2 may be disposed on the side surface (e.g., the outer side surface) of the first column portion 216a and may extend in the top surface direction on the lower surface of the base 1210. [

The second extension portion 1195-3 may be disposed on the side surface (e.g., the outer side surface) of the second column portion 216b and may extend in the top surface direction on the lower surface of the base 1210. [

The first and second extension portions 1195-2 and 1195-3 can improve the coupling force between the magnetic body 1195 and the base 1210. [

In order to increase the force acting between the magnet 1130 and the magnetic body 1195, the lateral length L1 (see Fig. 1) of the plate 1195-1 of the magnetic body 1195 is larger than the lateral length of the magnet 1130 (L2, see FIG. 2), but is not limited thereto. In other embodiments, L1 may be equal to L2.

Since attraction is applied between the magnetic body 1195 and the magnet 1130, even if a driving signal is not supplied to the coil 1120, the initial position of the bobbin 1110 can be set.

For example, when the drive signal is not provided to the coil 1120, the bobbin 1110 can be raised to the lowest position by the attraction force acting between the magnetic body 1195 and the magnet 1130. Here, the lowest position of the bobbin 1110 may be the lowest position with respect to the base 1210 among the displacements of the bobbin 1110. In this case, the lowest position of the bobbin 1110 may be the initial position of the bobbin 1110.

For example, when no drive signal is provided to the coil 1120, the force acting between the magnet 1195 and the magnet 1130 may be greater than or equal to the force required to bring the bobbin 1110 to its lowest position .

Since the initial position of the bobbin 1110 can be set by the attraction between the magnetic body 1195 and the magnet 1130, accurate AF operation can be performed even without a separate position sensor.

Since the center of the bobbin 1110 and the center of the base are not aligned with each other and one magnet 1130 is used, the embodiment can reduce the number of parts.

In contrast to the lens driving apparatus using a spring, since the embodiment includes the roller instead of the spring, the embodiment can reduce the AF driving speed because the AF driving can consume a small amount of current and the settling time is small .

Since the magnetic body 1195 and the magnet 1130 are disposed on either side 218a of the body 213 of the base 1210, the embodiment can simultaneously perform the tilt correction and the driving function.

The rollers P1 to P3 of the first roller portion 1150 are arranged to be inclined by a first angle with respect to the first reference line 501 and the rollers Q1 to Q3 of the second roller portion 1160 are inclined, Is arranged at a second angle with respect to the first reference line, the embodiment can suppress the induction of the bobbin 1110 in the X and Y axis directions.

In the embodiment shown in FIGS. 1 to 10, the position sensor is not provided, but the present invention is not limited thereto, and the lens driving apparatus according to another embodiment may further include a position sensor.

Fig. 11 shows a position sensor 1170 additionally provided in the lens driving apparatus 1100, and Fig. 12 shows a sectional view of an embodiment including the position sensor 1170 in Fig.

11 and 12, the position sensor 1170 is disposed or mounted on the circuit board 1190, and may be located in an empty space in the center of the coil 1120.

For example, the position sensor 1170 may be located in a space between the upper portion 120-1 and the lower portion 120-2 of the coil 1120.

For example, the position sensor 1170 may overlap the nonmagnetic bulkhead 33 of the magnet 1130 in the direction from the first pillar 216a toward the fourth pillar 216d.

The position sensor 1170 can sense the intensity of the magnetic field of the magnet 1130 mounted on the bobbin 1110 according to the movement of the bobbin 1110 and output an output signal according to the sensed result. The position sensor 1170 may be disposed on the first side of the circuit board 1190. The first surface of the circuit board 1190 may be a surface on which the coil 1120 is disposed.

The position sensor 1170 may be implemented in the form of a driver IC including a Hall sensor, or may be implemented as a position detection sensor alone such as a Hall sensor or the like.

For example, if the position sensor 1170 is implemented as a hall sensor alone, the position sensor 1170 may include two input terminals and two output terminals.

The circuit board 1190 may be electrically connected to the position sensor 1170.

For example, the four terminals of the position sensor 1170 may be electrically connected to the circuit board 1190.

The circuit board 1190 may include a plurality of terminals 91-1 to 91-6 and a part of the plurality of terminals may be electrically connected to the four terminals of the position sensor 1170. [

For example, the circuit board 1190 may include two terminals (e.g., 91-1 and 91-2) that are electrically connected to the coil 1120 and four terminals that are electrically connected to the position sensor 1170 (e.g., 91-3 to 91-6).

Since the drive signal from the position sensor 1170 to the coil 1120 can be provided when the position sensor 1170 is a driver IC including a Hall sensor, And may include four terminals electrically connected to each other.

Since the first roller portion 1150 and the second roller portion 1160 are disposed on the bobbin 1110 in the embodiment, the space utilization of the base 1210 can be increased, and the magnet 1130 and the coil 1120 In order to secure the size in the longitudinal direction of the sheet.

Further, when the position sensor 1170 is implemented as a driver-integrated position sensor, sufficient space can be secured for mounting the driver-integrated position sensor.

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

14, the camera module 200 includes a lens or lens barrel 400, a lens driving device 1100, an adhesive member 612, a filter 610, a first holder 600, a second holder 800 An image sensor 810, a motion sensor 820, a controller 830, and a connector 840. The lens driving apparatus 100 may be the embodiment described in Figs. 1 to 13C.

A lens or lens barrel 400 may be mounted to the bobbin 1110 of the lens driving apparatus 1100.

The first holder 600 may be disposed below the base 1210 of the lens driving apparatus 1100. The filter 610 may be mounted to the first holder 600 and the first holder 600 may have a protrusion 500 on which the filter 610 is seated.

The adhesive member 612 can couple or attach the base 1210 of the lens driving apparatus 1100 to the first holder 600. [ For example, the adhesive member 612 may be an epoxy, a thermosetting adhesive, an ultraviolet ray-curable adhesive, or the like.

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

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

The second holder 800 may be disposed below the first holder 600 and the image sensor 810 may be mounted on the second holder 600. The image sensor 810 is a portion where an image included in the light is formed by light incident through the filter 610.

The second holder 800 may be provided with various circuits, elements, and a controller for converting an image formed on the image sensor 810 into an electrical signal and transmitting the electrical signal to an external device. The second holder 800 can be implemented as a circuit board on which an image sensor can be mounted, a circuit pattern can be formed, and various devices can be coupled.

The image sensor 810 can receive the image included in the light incident through the lens driving device 1100 and convert the received image into an electrical signal.

The filter 610 and the image sensor 810 may be spaced apart from 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 based on the motion of the camera module 200. The motion sensor 820 may be implemented as a two-axis or three-axis gyro sensor, or an angular velocity sensor.

The control unit 830 is mounted on the second holder 800. The second holder 800 may be electrically connected to the lens driving apparatus 1100. For example, the second holder 800 may be electrically connected to the coil 1120 of the lens driving apparatus 1100 and may provide a driving signal to the coil 1120.

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

Fig. 15 shows a perspective view of the portable terminal 200A according to the embodiment, and Fig. 16 shows a configuration diagram of the portable terminal 200A shown in Fig.

15 and 16, the portable terminal 200A includes a body 850, a wireless communication unit 710, an A / V input unit 720, a sensing unit 740, an input / An output unit 750, a memory unit 760, an interface unit 770, a control unit 780, and a power supply unit 790.

The body 850 shown in FIG. 15 is of a bar shape, but is not limited thereto. The body 850 may be a slide type, a folder type, a swing type , A swirl type, and the like.

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

The wireless communication unit 710 may include one or more modules that enable wireless communication between the terminal 200A and the wireless communication system or between the terminal 200A and the network in which the terminal 200A is located. For example, the wireless communication unit 710 may include a broadcast receiving module 711, a mobile communication module 712, a wireless Internet module 713, a short distance 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 a camera module 200 according to the embodiment shown in FIG.

The sensing unit 740 senses the current state of the terminal 200A such as the open / close state of the terminal 200A, the position of the terminal 200A, the presence of the user, the orientation of the terminal 200A, And generate a sensing signal for controlling the operation of the terminal 200A. 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 the power supply of the power supply unit 790, whether the interface unit 770 is connected to an external device, and the like.

The input / output unit 750 is for generating an input or an output related to a visual, auditory or tactile sense. The input / output unit 750 can generate input data for controlling the operation of the terminal 200A and 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 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, And a display (3D display).

The audio output module 752 outputs audio data received from the wireless communication unit 710 in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, or a broadcast reception mode, 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 electrical input signal.

The memory unit 760 may store programs for processing and controlling the control unit 780 and may store input / output data (e.g., telephone directory, message, audio, still image, You can save it temporarily. For example, the memory unit 760 may store an image, e.g., a photograph or a moving image, photographed by the camera 721. [

The interface unit 770 serves as a path for connection to an external device connected to the terminal 200A. The interface unit 770 receives data from an external device or supplies power to each component in the terminal 200A or allows data in the terminal 200A to be transmitted to an external device. For example, the interface unit 770 may include a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device equipped with the identification module, Output port, a video input / output (I / O) port, and an earphone port.

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

The control unit 780 may include a multimedia module 781 for multimedia playback. The multimedia module 781 may be implemented in the control unit 780 or may be implemented separately from the control unit 780.

The control unit 780 can perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 790 can supply external power or internal power under the control of the controller 780 and supply power required for operation of each component.

The features, structures, effects and the like described in the embodiments 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, and the like illustrated in the embodiments can be combined and modified by other persons having ordinary skill in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

Claims (11)

A base including a body and a first pillar, a second pillar, a third pillar, and a fourth pillar disposed at the corners of the body;
A bobbin disposed on the body;
A magnet disposed on a first side of the bobbin;
A first roller portion disposed in a first groove provided in a second side surface of the bobbin;
A second roller portion disposed in a second groove provided on a third side surface of the bobbin;
And a coil disposed between the first pole portion and the second pole portion in correspondence with the magnet,
The first side of the bobbin being disposed between the second side and the third side,
Wherein the first roller portion contacts at least two areas of the first groove,
Wherein the second roller portion contacts at least two areas of the second groove,
Wherein the first groove includes a first opening exposing a portion of the first roller portion,
The second groove including a second opening exposing a portion of the second roller portion,
The base includes:
A first support portion disposed in the first opening and contacting the first roller portion,
And a second support portion disposed in the second opening and contacting the second roller portion. The method according to claim 1,
Wherein the first support portion is protruded from the inner side surface of the first column portion,
And the second supporting portion protrudes from an inner surface of the second post. The method according to claim 1,
Wherein the first roller portion contacts four regions of the first groove,
And the second roller portion contacts four regions of the second groove. The method according to claim 1,
Further comprising a circuit board fixed to the base and to which the coil is coupled,
Wherein the circuit board is fixed to the first pillar portion and the second pillar portion. 5. The method of claim 4,
Wherein the circuit board includes a terminal electrically connected to the coil,
Wherein the terminal includes a first terminal and a second terminal, and the terminal is disposed on the body of the base. The method according to claim 1,
And a magnetic body disposed on the base below the coil and acting on the magnet and the attraction force. The method according to claim 6,
And the magnetic body is disposed on an outer surface of the base. The magnetic recording medium according to claim 7,
A plate disposed on an outer surface of the body of the base;
A first extension disposed on an outer surface of the first post and extending upwardly from the plate; And
And a second extension portion disposed on an outer surface of the second post portion and extending upward from the plate. The method according to claim 1,
Wherein each of the first roller portion and the second roller portion includes a plurality of rollers,
Each of the rollers is cylindrical,
Wherein each of the rollers is arranged to be rotatable about an axis perpendicular to the optical axis. The method according to claim 1,
Wherein the first roller portion is arranged to be inclined at a first angle with respect to the first reference line,
The second roller portion is arranged to be inclined at a second angle with respect to the first reference line,
Wherein the first reference line is an imaginary straight line parallel to a direction from the first post to the second post, and the first angle is different from the second angle. The method according to claim 1,
And a roller cover disposed on the upper, upper, or upper surface of the bobbin to prevent the first roller portion and the second roller portion from being separated from the first groove and the second groove.

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