Lens-equipped mobile device and its camera module and optical components.

Abstract

This invention relates to lens-mounted mobile devices and camera modules and optical devices including therein. An embodiment includes: a base including a main body and first, second, third, and fourth support pillars disposed at corners of the main body; a spool disposed on the main body; a first roller unit disposed in a first groove provided in the first support pillar; a second roller unit disposed in a second groove formed on a second support pillar adjacent to the first support pillar; a magnet disposed on the spool; and a coil corresponding to the magnet and disposed between the first and second support pillars. The first roller unit contacts at least two regions of the first groove, and the second roller unit contacts at least two regions of the second groove. The first groove includes a first opening through which a portion of the first roller unit is exposed. The second groove includes a second opening through which a portion of the second roller unit is exposed. The spool includes: a first support member disposed in the first opening and in contact with the first roller unit; and a second support member disposed in the second opening and in contact with the second roller unit.

Description

[0001] This case is a divisional application, the parent application being the patent application filed on August 29, 2018, with application number 2018800712619, entitled "Lens Mobile Device and Camera Module and Optical Device Including the Therein". Technical Field

[0002] The embodiments relate to a lens-mounted mobile device, and to a camera module and an optical device respectively including the lens-mounted mobile device. Background Technology

[0003] It is difficult to apply the technology of voice coil motors (VCMs) used in existing general camera modules to ultra-small, low-power camera modules, so related research has been actively carried out.

[0004] The demand for and production of electronic products equipped with cameras, such as smartphones and mobile phones, are increasing. Cameras for mobile phones are trending towards higher resolution and miniaturization. As a result, actuators have also become smaller, larger in diameter, and more multifunctional. To achieve high-resolution cameras for mobile phones, it is necessary to improve the performance of cameras for mobile phones and their additional functions, such as autofocus, image stabilization, and zoom. Summary of the Invention

[0005] Technical issues

[0006] The embodiment provides a lens moving device, and a camera module and an optical device respectively including the lens moving device. The lens moving device can improve the speed of AF operation, suppress the movement of the spool during AF operation, and increase the possible size range of the magnet and the coil.

[0007] Furthermore, the embodiments provide a novel lens mobile device, and a camera module and an optical device respectively including the lens mobile device, the lens mobile device being configured to guide the spool along the optical axis direction by rollers instead of leaf springs.

[0008] Technical solution

[0009] The lens moving device according to a first embodiment includes: a base, the base including a main body and a first pillar, a second pillar, a third pillar and a fourth pillar disposed at corners of the main body; a spool disposed on the main body; a first roller unit disposed in a first groove formed in the first pillar; a second roller unit disposed in a second groove formed in a second pillar adjacent to the first pillar; a magnet disposed at the spool; and a coil disposed between the first pillar and the second pillar and corresponding to the magnet, wherein the first roller unit contacts at least two regions of the first groove, and the second roller unit contacts at least two regions of the second groove, wherein the first groove includes a first opening through which a portion of the first roller unit is exposed, and the second groove includes a second opening through which a portion of the second roller unit is exposed, wherein the spool includes: a first support member disposed in the first opening to contact the first roller; and a second support member disposed in the second opening to contact the second roller.

[0010] The first support member can protrude from the outer surface of the spool, and the second support member can protrude from the outer surface of the spool. The first roller unit can contact four areas of the first groove, and the second roller unit can contact four areas of the second groove.

[0011] The lens mobile device according to the first embodiment may further include a circuit board fixed to a base, a coil coupled to the circuit board, and the circuit board fixed to a first post and a second post.

[0012] The circuit board may include terminals electrically connected to the coil, the terminals including a first terminal and a second terminal and disposed at the body.

[0013] The lens moving device according to the first embodiment may further include a magnetic body disposed below the coil at the base to cooperate with the magnet to generate an attractive force. The magnetic body may be disposed on the outer surface of the base. The magnetic body may include: a plate disposed on the outer surface of the body of the base; a first extension disposed on the outer surface of a first support and extending upward from the plate; and a second extension disposed on the outer surface of a second support and extending upward from the plate.

[0014] Each of the first roller unit and the second roller unit may include a plurality of rollers, each of which has a cylindrical shape. Each of the first roller unit and the second roller unit may be configured to be rotatable about an axis perpendicular to the optical axis.

[0015] The ratio of the diameter to the longitudinal length of each of the plurality of rollers may be from 1:1.5 to 1:5. The spool may include a first to a fourth protrusion disposed on its side surface, and a magnet may be disposed in a mounting recess formed in the first protrusion, the first protrusion being disposed between a first post and a second post, the second protrusion being disposed between a second post and a third post, the third protrusion being disposed between a third post and a fourth post, and the fourth protrusion being disposed between a fourth post and a first post.

[0016] The first roller unit can be configured to be inclined at a first angle relative to a first reference line, and the second roller unit can be configured to be inclined at a second angle relative to the first reference line. The first reference line can be an imaginary line parallel to the direction from the first support post toward the second support post, and the first angle can be different from the second angle.

[0017] The angle between the central axis of the roller and the first reference line can be 30° to 60°. The central axis can be an axis that extends through the center of the roller's diameter and is parallel to the longitudinal direction of the roller, and the roller can rotate about the central axis.

[0018] The lens moving device may further include a lubricant disposed in a first groove and a second groove, and the lubricant may contact the first groove and the first roller unit, and may contact the second groove and the second roller unit.

[0019] The lens moving device according to the second embodiment includes: a base, the base including a main body, a first pillar and a second pillar adjacent to the first pillar, the first pillar and the second pillar being respectively disposed at the corners of the main body; a spool disposed on the main body; a first roller unit disposed in a first groove formed in the first pillar; a second roller unit disposed in a second groove formed in the second pillar; a magnet disposed at the spool; a substrate fixed to the base; a coil coupled to the substrate and facing the magnet; and a magnetic body disposed at the base below the coil to cooperate with the magnet to generate an attractive force, wherein the first roller unit contacts the first pillar and the spool, and the second roller unit contacts the second pillar and the spool.

[0020] The lens moving device according to the third embodiment includes: a base, the base including a main body and a first pillar, a second pillar, a third pillar and a fourth pillar disposed at a corner of the main body; a spool disposed on the main body; a magnet disposed on a first side surface of the spool; a first roller unit disposed in a first groove formed in a second side surface of the spool; a second roller unit disposed in a second groove formed in a third side surface of the spool; and a coil disposed between the first pillar and the second pillar and corresponding to the magnet, wherein the first side surface of the spool is disposed between the second side surface and the third side surface, wherein the first roller unit contacts at least two regions of the first groove, and the second roller unit contacts at least two regions of the second groove, wherein the first groove includes a first opening through which a portion of the first roller unit is exposed, and the second groove includes a second opening through which a portion of the second roller unit is exposed, wherein the base includes: a first support member disposed in the first opening to contact the first roller unit; and a second support member disposed in the second opening to contact the second roller unit.

[0021] The first support member can protrude from the inner surface of the first pillar, and the second support member can protrude from the inner surface of the second pillar.

[0022] The first roller unit can contact the four areas of the first groove, and the second roller unit can contact the four areas of the second groove.

[0023] The lens mobile device according to the third embodiment may further include a circuit board fixed to a base and a coil coupled to the circuit board, the circuit board being fixed to a first post and a second post.

[0024] The circuit board may include terminals that are electrically connected to the coil, and the terminals may include a first terminal and a second terminal and may be disposed on the body of the base.

[0025] The lens moving device according to the third embodiment may further include a magnetic body disposed below the coil at the base to cooperate with the magnet in generating an attractive force. The magnetic body may be disposed on the outer surface of the base. The magnetic body may include: a plate disposed on the outer surface of the body; a first extension disposed on the outer surface of the first pillar and extending upward from the plate; and a second extension disposed on the outer surface of the second pillar and extending upward from the plate.

[0026] Each of the first and second roller units may include multiple rollers, and each roller may be cylindrical in shape and rotatable about an axis perpendicular to the optical axis. The first roller unit may be configured to be tilted at a first angle relative to a first reference line, and the second roller unit may be configured to be tilted at a second angle relative to the first reference line. The first reference line may be an imaginary line parallel to a direction from the first post toward the second post, and the first and second angles may be different from each other.

[0027] The lens moving device according to the third embodiment may further include a roller cover disposed on the upper part, upper end or upper surface of the cylinder to prevent the first roller unit and the second roller unit from separating from the first groove and the second groove.

[0028] The lens moving device according to the fourth embodiment includes: a housing including a base and a first pillar, a second pillar, a third pillar, and a fourth pillar, the first pillar, the second pillar, the third pillar, and the fourth pillar being respectively disposed at four corners of the base and projecting upward from the base; a spool disposed in the housing; a coil disposed in the housing such that at least a portion thereof is exposed inside the housing via the space between the first pillar and the second pillar; a magnet disposed in the spool facing the coil exposed via the space between the first pillar and the second pillar; and a roller disposed in the housing and located between the third pillar and the fourth pillar to contact the spool, wherein the coil and the roller face each other with the spool disposed therebetween, and the roller is configured to rotate about an axis extending from the third pillar toward the fourth pillar.

[0029] The lens device according to the fourth embodiment may further include a terminal located between the housing and the coil and electrically connected to the coil, the terminal including a magnetic material such that an attractive force acts between the terminal and the magnet.

[0030] The magnet may include: a first magnet disposed at the spool and facing the coil; a second magnet disposed at the spool and facing the roller; and a third magnet disposed at the housing and located between a third support and a fourth support, wherein an attractive force acts between the second magnet and the third magnet.

[0031] The roller can be positioned between the second magnet and the third magnet.

[0032] The coil may include: a first coil portion extending from a first post toward a second post; a second coil portion located below the first coil and extending from the second post toward the first post; a third coil portion connecting one end of the first coil portion to one end of the second coil portion; and a fourth coil portion connecting the other end of the first coil portion to the other end of the second coil portion, wherein the magnet may include a first magnet portion facing the first coil portion and a second magnet portion facing the second coil portion, wherein the polarity orientations of the first magnet portion and the second magnet portion may be different from each other.

[0033] The housing may include: a first connector that connects a first post to a second post; a second connector that connects the first post to the second post and is located below the first connector; a first sidewall that connects the second post to a third post; a second sidewall that connects the third post to a fourth post; and a third sidewall that connects the fourth post to the first post, wherein a coil may be located between the first connector and the second connector, and a roller may be located inside the second sidewall.

[0034] The housing may further include a first contact and a second contact, the first contact and the second contact protruding from the second sidewall toward the roller to contact the roller.

[0035] The housing may further include: a first shielding wall located inside the second sidewall and projecting from the third post toward the fourth post; and a second shielding wall located inside the second sidewall and projecting from the fourth post toward the third post, wherein one end of the roller may be located between the first contact and the first shielding wall to contact a surface of the first shielding wall, and the other end of the roller may be located between the second contact and the second shielding wall to contact a surface of the second shielding wall.

[0036] The spool may include a third contact and a fourth contact, which protrude from the surface facing the second sidewall toward the spool to contact the spool.

[0037] The lens moving device according to the fifth embodiment includes: a housing including a base and a first pillar, a second pillar, a third pillar, and a fourth pillar, the first pillar, the second pillar, the third pillar, and the fourth pillar being respectively disposed at four corners of the base and projecting upward from the base; a lens module located inside the housing; a lens module disposed inside a coil; a substrate disposed below the base; an image sensor disposed on the substrate and positioned facing the lens module; a coil disposed on the housing such that at least a portion thereof is exposed inside the housing via the space between the first pillar and the second pillar; a magnet disposed on the coil to face the coil exposed via the space between the first pillar and the second pillar; and a roller disposed on the housing between the third pillar and the fourth pillar to contact the coil, wherein the coil and the roller face each other with the coil disposed between them, and the roller includes a curved surface and is configured to rotate about an axis extending from the third pillar toward the fourth pillar.

[0038] The optical device according to an embodiment includes: a main body; a display unit located on one side of the main body; a housing disposed inside the main body and including a base and first to fourth pillars, the first to fourth pillars being respectively disposed at four corners of the base and projecting upward from the base; a spool located inside the housing; a lens module disposed inside the spool; a substrate disposed below the base and electrically connected to the display unit; an image sensor disposed on the substrate and positioned facing the lens module; a coil disposed on the housing such that at least a portion thereof is exposed inside the housing via the space between the first and second pillars; a magnet disposed on the spool facing the coil; and a roller disposed on the housing and located between the third and fourth pillars to contact the spool, wherein the coil and the roller face each other when the spool is disposed between the coil and the roller, and the roller includes a curved surface and is configured to rotate about an axis extending from the third pillar toward the fourth pillar.

[0039] Beneficial effects

[0040] The embodiments can improve the speed of AF operation, suppress the movement of the bobbin during AF operation, and increase the possible range of sizes for the magnet and coil. Attached Figure Description

[0041] Figure 1 This is an exploded perspective view of the lens-mounted device according to an embodiment; Figure 2 yes Figure 1 A three-dimensional diagram of the bobbin and magnet shown; Figure 3a yes Figure 1The first perspective view of the base shown; Figure 3b yes Figure 1 The second perspective view of the base shown; Figure 4 yes Figure 1 An exploded perspective view of the base, first roller unit, second roller unit, magnet, coil, and circuit board shown. Figure 5 This is an enlarged view of the first groove formed in the first support column; Figure 6 yes Figure 4 An enlarged view of the roller shown; Figure 7 This is a top view of the lens moving device, from the lens moving device to the point where the cover component has been removed; Figure 8 yes Figure 7 The cross-sectional view taken along line AB of the lens moving device shown; Figure 9 yes Figure 7 The cross-sectional view taken along line CD of the lens moving device shown; Figure 10 yes Figure 7 A magnified view of a portion of the image; Figure 11 It shows Figure 7 A portion of the cross section taken along line CD; Figure 12 A position sensor additionally configured in the lens-mounted device is shown; Figure 13 It includes Figure 12 A cross-sectional view of an embodiment of the position sensor shown; Figure 14A is a partial perspective view of a base according to another embodiment; Figure 14B is a partial perspective view of the base according to yet another embodiment; Figure 14C is a partial perspective view of the base according to yet another embodiment; Figure 15 This is a perspective view of a spool according to another embodiment; Figure 16 This is a perspective view of the base according to another embodiment; Figure 17 yes Figure 15 The spool shown and Figure 16 An assembled 3D view of the base shown; Figure 18 yes Figure 15 The spool shown Figure 16 A perspective view of the base, the first roller unit, the second roller unit, the first coil, and the circuit board shown. Figure 19 This is an exploded perspective view of a lens-mounted device according to another embodiment; Figure 20 yes Figure 19 A three-dimensional view of the bobbin and magnet shown in the diagram; Figure 21 yes Figure 20 A perspective view of the first and second grooves in the bobbin, as well as the first and second roller units shown. Figure 22 yes Figure 19 The first perspective view of the base shown; Figure 23 yes Figure 19 The second perspective view of the base shown; Figure 24 This is a top view of the lens moving device, from which the cover component has been removed; Figure 25 yes Figure 24 The cross-sectional view taken along line AB of the lens moving device shown; Figure 26 yes Figure 24 The cross-sectional view taken along line CD of the lens moving device shown; Figure 27 yes Figure 24 A magnified view of a portion of the image; Figure 28 A position sensor additionally configured in the lens-mounted device is shown; Figure 29 It includes Figure 28 A cross-sectional view of an embodiment of the position sensor shown; Figures 30a to 30c This is a partial perspective view of another embodiment of the spool; Figure 31 This is a perspective view of a lens-mounted mobile device according to yet another embodiment; Figure 32 yes Figure 31 An exploded perspective view of the lens-mounted device shown. Figure 33 yes Figure 31 The cross-sectional view of the lens moving device shown is taken along line A-A'. Figure 34 yes Figure 31 The cross-sectional view of the lens moving device shown is taken along line B-B'. Figure 35 yes Figure 32 A perspective view of the housing, coil, roller, shielding components, and base shown. Figure 36 yes Figure 32 A perspective view of the housing, coil, roller, shielding components, and terminals shown. Figure 37 yes Figure 32 A three-dimensional view of the bobbin shown; Figure 38 yes Figure 32 A three-dimensional view of the bobbin, the first magnet, and the second magnet shown. Figure 39 yes Figure 32 The image shows a top view of the lens moving device, with the rollers in contact with the base of the housing; Figure 40 This is a perspective view of a lens device according to yet another embodiment, with the cover removed from the lens device; Figure 41 Based on Figure 33 A cross-sectional view of the camera module of an embodiment of the view; Figure 42 This is an exploded perspective view showing a camera module according to another embodiment; Figure 43 This is a perspective view of a portable terminal according to an embodiment; and Figure 44 It is shown Figure 43 A view of the structure of the portable terminal shown. Detailed Implementation

[0042] In the following description, embodiments of the present invention that specifically achieve the above objectives will be described with reference to the accompanying drawings.

[0043] In the following description of the embodiments, it will be understood that when an element is referred to as being formed “above” or “below” another element, it may be directly “above” or “below” the other element, or it may be indirectly disposed “above” or “below” the other element, and there may be one or more intermediate elements between the element and the other element. Additionally, it will be understood that “above” or “below” an element may refer to an upward or downward direction based on the element.

[0044] Additionally, relative terms used in the following description, such as “first,” “second,” “above,” and “below,” may be used to distinguish any substance or element from another without implying any physical or logical relationship or order between these substances or elements. In all the accompanying drawings, the same reference numerals denote the same elements.

[0045] Unless otherwise defined, the terms “comprising,” “including,” or “having” as used in the above description are used to specify the presence of the features, steps, or combinations thereof described in the specification, and should be understood to not exclude the presence or possibility of additional inclusion of one or more different features, steps, or combinations thereof.

[0046] In the following description, a lens device according to an embodiment of the present disclosure will be described with reference to the accompanying drawings. For ease of description, although a Cartesian coordinate system (x, y, z) is used to describe the lens device, other coordinate systems may be used, and the embodiments are not limited thereto. In the various drawings, the X-axis and Y-axis refer to directions perpendicular to the optical axis, i.e., the Z-axis, and the direction of the optical axis OA or a direction parallel to the optical axis OA may be referred to as the "first direction," the X-axis direction may be referred to as the "second direction," and the Y-axis direction may be referred to as the "third direction."

[0047] The term "optical axis direction" can be defined as the optical axis direction of a lens module in a state of coupling with a lens moving device. Here, the term "optical axis direction" can also be used to refer to the up-down direction or the vertical direction.

[0048] An "autofocus device" for an ultra-miniature camera module used in mobile devices such as smartphones or tablets is a device that automatically focuses an image of an object onto the surface of an image sensor. The autofocus device can be configured in various ways, and according to an embodiment, a lens-moving device can move an optical module consisting of at least one lens in a first direction to perform autofocus.

[0049] Figure 1 This is an exploded perspective view of the lens moving device 100 according to an embodiment.

[0050] Reference Figure 1 The lens moving device 100 may include a cover member 300, a spool 110, a coil 120, a magnet 130, a first roller unit 150, a second roller unit 160, a circuit board 190, a magnet 195, and a base 210.

[0051] The cover component 300 will be described first.

[0052] The cover member 300 accommodates components 110, 120, 130, 150, 160, 190 and 195 in a space defined between the cover member 300 and the base 210.

[0053] The cover member 300 may take the form of a box with an open bottom and including a top plate and side plates. The lower ends of the side plates of the cover member 300 may be coupled to the base 210. The top plate of the cover member 300 may have a polygonal shape, such as a square or octagonal shape.

[0054] The cover member 300 may have an opening in its top plate through which the lens unit 400 coupled to the tube 110 is exposed to external light.

[0055] For example, the cover member 300 can be made of a non-magnetic metal or plastic material such as SUS, aluminum (Al), copper (Cu), tin (Sn), or platinum. Because the cover member 300 is made of a non-magnetic material, the embodiment is able to prevent the magnet 130 and / or the magnetic body 195 from attracting the cover member 330.

[0056] An adhesive injection recess 332 may be provided in the lower end of at least one of the side plates of the cover member 300.

[0057] A groove 1334 may be formed at the lower end of one of the side plates of the cover member 300, through which terminals 1091 and 1092 of the circuit board 1190 are exposed.

[0058] Next, the spool 110 will be described.

[0059] Figure 2 yes Figure 1 A perspective view of the spool 110 and the magnet 130 shown.

[0060] Reference Figure 2 The spool 110 can be located inside the supports 216a to 216d of the base 210, and can be moved in a first direction (e.g., the Z-axis direction) by the electromagnetic interaction between the coil 120 and the magnet 130. For example, the spool 110 can be moved from its initial position in a direction such as upward.

[0061] The spool 110 may have an opening 101 in which a lens or lens barrel is mounted.

[0062] The shape of the opening 101 in the spool 110 can correspond to the shape of the lens and lens barrel mounted in the spool. For example, the shape of the opening can be circular, elliptical, or polygonal. However, this disclosure is not limited thereto.

[0063] The spool 110 may include at least one stop 111 disposed on its upper surface.

[0064] The stop 111 of the spool 110 may be a structure that protrudes from the upper surface of the spool 110 along a first direction or along an upward direction, and can prevent the upper surface of the spool 110 from directly colliding with the inner surface of the top plate of the cover member 300.

[0065] The spool 110 may include a mounting recess 102 formed in its outer surface, in which the magnet 130 is mounted. For example, the mounting recess 102 may be a structure that is recessed from the outer surface of the spool 110 and opens at the lower part of the spool 110.

[0066] The spool 110 may include: side surfaces 110c-1 to 110c-4; a side surface between side surface 110c-1 and side surface 110c-2; a side surface 110b-2 between side surface 110c-2 and side surface 110c-3; a side surface 110b-3 between side surface 110c-3 and side surface 110c-4; and a side surface 110b-4 between side surface 110c-4 and side surface 110c-1.

[0067] The side surfaces 110c-1 to 110c-4 of the spool 110 can correspond to the supports 216a to 216d of the base 210, and the side surfaces 110b-1 to 110b-4 of the spool 110 can correspond to the space between the supports 216a to 216d of the base 210, respectively.

[0068] The spool 110 may include protrusions 118a to 118d projecting from its outer surface. For example, the outer surface of the protrusions 118a to 119d may be the side surfaces 110b-1 to 110b-4 of the spool 110.

[0069] The mounting recess 102 can be formed in the side surface of the first protrusion 118a and can have a shape that is the same as or conforms to the shape of the magnet 130.

[0070] The spool 110 may include a first support member disposed on the side surface 110c-1 and a second support member 116b disposed on the side surface 110c-2.

[0071] For example, the first support member 116a may be disposed between the first protrusion 118a and the fourth protrusion 118d, and the second support member 116b may be disposed between the first protrusion 118a and the second protrusion 110b.

[0072] The first support member 116a can protrude from the outer surface of the spool 110, and the second support member 116b can protrude from the outer surface of the spool 110.

[0073] For example, the first support member 116a may have a column shape, such as a semi-cylindrical shape, protruding from the side surface 110c-1 of the spool 110. However, this disclosure is not limited to this, and the first support member may have various column shapes.

[0074] For example, the second support member 116b may have a column shape, such as a semi-cylindrical shape, protruding from the side surface 110c-2 of the spool 110. However, this disclosure is not limited thereto, and the second support member may have various column shapes.

[0075] For example, the first support member 116a and the second support member 116b may be bilaterally symmetrical with respect to the first protrusion 118a. However, this disclosure is not limited thereto.

[0076] For example, the fourth protrusion 118d may protrude more than the first support 116a in the direction from the side surface 110b-2 of the spool 110 toward the side surface 110b-4, and the first protrusion 118a may protrude more than the first support 116a in the direction from the side surface 110b-3 of the spool 110 toward the side surface 110b-1.

[0077] For example, the second protrusion 118b may protrude more than the second support 116b in the direction from the side surface 110b-4 of the spool 110 toward the side surface 110b-2, and the first protrusion 118a may protrude more than the first support 116a in the direction from the side surface 110b-3 of the spool 110 toward the side surface 110b-1. This is done to increase the design freedom in the arrangement of the supports 216a and 216b of the first roller unit 150 and the second roller unit 160.

[0078] Next, magnet 130 will be described.

[0079] The magnet 130 can be disposed or mounted to the spool 110. For example, the magnet 130 can be disposed in a mounting recess 102 formed in the side surface 110b-1 of the spool 110, such as the outer surface of the first protrusion 118a.

[0080] Although the magnet 130 may have a shape corresponding to the side surface 110b-1 of the bobbin 110, for example, a rectangular parallelepiped shape, this disclosure is not limited thereto.

[0081] Although the magnet 130 may be a bipolar magnet to increase the driving force generated by the electromagnetic interaction with the coil, this disclosure is not limited thereto.

[0082] For example, magnet 130 can be a bipolar magnetized magnet, which is divided into two poles in a direction perpendicular to the optical axis. Here, magnet 130 can be implemented by ferrite magnet, AlNiCo alloy magnet, rare earth magnet, etc.

[0083] For example, magnet 130 may include: a first magnet portion 31 including N pole and S pole; a second magnet portion 32 including S pole and N pole; and a non-magnetic partition 33.

[0084] The first magnet portion 31 and the second magnet portion 32 can be spaced apart from each other, and the non-magnetic partition 33 can be located between the first magnet portion 31 and the second magnet portion 32.

[0085] Non-magnetic partitions are almost entirely non-magnetic and can include regions that have almost no polarity. Non-magnetic partitions can be filled with air or non-magnetic materials and can be referred to as "neutral regions".

[0086] In another embodiment, magnet 130 may be a unipolar magnetized magnet including an S pole and an N pole.

[0087] Next, the base 210 will be described.

[0088] Figure 3a yes Figure 1 The first perspective view of the base 210 shown. Figure 3b yes Figure 1 The second perspective view of the base 210 shown. Figure 4 yes Figure 1 An exploded perspective view of the base 210, the first roller unit 150, the second roller unit 160, the magnet 195, the coil 120, and the circuit board 190 shown.

[0089] Reference Figure 3a , Figure 3b and Figure 4 The base 210 can be coupled to the cover member 300 and can cooperate with the cover member 300 to define a space for accommodating the spool 110.

[0090] The base 210 may have an opening 301 corresponding to the opening in the cover member 300 and / or the opening in the spool 110. The base 210 may have a shape that matches or corresponds to the cover member 300, for example, a square shape.

[0091] The base 210 may include a body 213 having an opening 301 and pillars 216a to 216d protruding from the body 213.

[0092] The main body 213 of the base 210 may include corner portions 217a to 217d and side portions 218a to 218d located between the corner portions 217a to 217d.

[0093] Each of the pillars 216a to 216d can be located at a corresponding corner of the corners 217a to 217d of the main body 213.

[0094] For example, the base 210 may include: a first pillar 216a, which protrudes upward from a first corner 217a to a predetermined height; a second pillar 216b, which protrudes upward from a second corner 217b to a predetermined height; a third pillar 216c, which protrudes upward from a third corner 217c to a predetermined height; and a fourth pillar 216d, which protrudes upward from a fourth corner 217d to a predetermined height.

[0095] The term "support" in base 210 may be used interchangeably with the term "protrusion".

[0096] Although each of the supports 216a to 216d may, for example, have a polygonal, circular, or elliptical shape that projects vertically from the upper surface of the body 213 of the base 210, this disclosure is not limited thereto. Although the supports 216a to 216d may, for example, have an "L"-shaped or triangular polygonal cross-section, this disclosure is not limited thereto.

[0097] Although the length in the lateral direction of each of the sides 218a to 218d of the body 213 of the base 210 may be greater than the length of each of the corners 217a to 217d of the body 213 of the base 210, this disclosure is not limited thereto.

[0098] An opening may be defined between two adjacent pillars 216a and 216b, 216b and 216c, 216c and 216d, and 216d and 216a.

[0099] Although the heights of the supports 216a to 216d may be the same relative to the upper surface of the body 213 of the base 210, this disclosure is not limited thereto.

[0100] The base 210 may include a stop 23 protruding from the upper surface of the body 2130. Although at least one stop 23, such as two stops 23, may be provided on the upper surface of each of the second side 218b and the fourth side 218d, their position and number are not limited thereto. The stop 23 of the base 210 may also be referred to as a "lower stop".

[0101] The stop 23 can prevent the lower surface or lower end of the spool 110 from directly colliding with the body 213 of the base 210.

[0102] The base 210 may include a stop 31, which is disposed on the upper surface or upper end of the supports 216a to 216d. The stop 31 of the base 210 may be referred to as the "upper stop".

[0103] For example, the stop 31 of the base 210 can be formed to protrude along the optical axis from the upper surface of the support column 216a to 216d.

[0104] The stop 31 of the base 210 can be used to ensure the space or gap for the reel 110 to move during AF operation.

[0105] A step 211 may be provided at the lower end of the outer surface of the main body 213 of the base 210. The step 211 may contact the lower end of the side plate of the cover member 300 and may guide the cover member 300. The step 211 of the base 210 and the lower end of the side plate of the cover member 300 may be bonded to each other and sealed, and may be sealed using adhesives or the like.

[0106] The base 210 may include: a first groove 51a formed in the first pillar 216a, a first roller unit 150 disposed in the first groove 51a; and a second groove 51b formed in the second pillar 216b adjacent to the first pillar 216a, a second roller unit 160 disposed in the second groove 51b.

[0107] For example, the first groove 51a may have a shape that corresponds to or matches at least one of the rollers included in the first roller unit 150, and the second groove 51b may have a shape that corresponds to or matches at least one of the rollers included in the second roller unit 160.

[0108] Each of the first groove 51a and the second groove 51b may have a structure that is recessed from the upper surface of the base 210.

[0109] The first groove 51a may include a first opening at the inner surface of the first pillar 216a, and the second groove 51b may include a second opening at the inner surface of the second pillar 216b.

[0110] The first support member 116a of the spool 110 may be disposed in the first opening 61a and may contact a portion of the first roller unit 150. In addition, the second support member 116b of the spool 110 may be disposed in the second opening 61b and may contact a portion of the second roller unit 160.

[0111] By using the first opening 61a and the second opening 61b, the friction between the first roller unit 150 and the second roller unit 160 and the first groove 51a and the second groove 51b in the base 210 can be reduced. By controlling the size of the first opening 61a and the second opening 61b, the desired friction can be obtained between the first roller unit 150 and the second roller unit 160 and the base 210.

[0112] The base 210 may further include: a first guide groove 52a, which is formed in the inner surface of the first groove 51a in the first pillar 216a; and a second guide groove 52b, which is formed in the inner surface of the second groove 51b in the second pillar 216b.

[0113] The first protrusion 311 of the cover member 300 (described later) can be inserted into or disposed in the first guide groove 52a, and the second protrusion 312 of the cover member 300 can be inserted into or disposed in the second guide groove 52b.

[0114] Lubricant can be injected into the first groove 51a through the first guide groove 52a, and lubricant can be injected into the second groove 51b through the second guide groove 52b.

[0115] The lubricant can be disposed in the first groove 51a and the second groove 51b, and can contact the first groove 51a and the first roller unit 150, and can contact the second groove 51b and the second roller unit 160.

[0116] Although the lubricant may be a grease-based lubricant, such as SDM (steel dust meter)-378, this disclosure is not limited thereto.

[0117] The lubricant can reduce the friction between the first roller unit 1150 and the second roller unit 1160 and the first groove 51a and the second groove 51b, and can make the rotation of the first roller unit 150 and the second roller unit 160 smooth.

[0118] The base 210 may include a first mounting recess 41 and a second mounting recess 42 formed in the first pillar 216a, the second pillar 216b, and the body 213.

[0119] Each of the first mounting recess 41 and the second mounting recess 42 may have a stepped structure or a two-stage structure based on the outer surfaces of the first pillar 216a and the second pillar 216b of the base 210.

[0120] The first mounting recess 41 may be formed in the outer surface of the first pillar 216a and the second pillar 216b and the outer surface of the first side portion 218a, and may have the same or a shape as the circuit board 190.

[0121] The second mounting recess 42 may be located in the first mounting recess 41, may be formed in the outer surface of the first pillar 216a and the second pillar 216b and in the outer surface of the first side portion 218a of the main body 213, and may be the same as or correspond to the magnetic body 195.

[0122] Next, circuit board 190 will be described.

[0123] The circuit board 190 can be mounted or fixed to the base 210.

[0124] The circuit board 190 can be fixed to the first pillar 216a and the second pillar 216b of the base 210. For example, the circuit board 190 can be disposed at the first pillar 216a and the second pillar 216b of the base 210 and at the first side portion 218a of the main body 2130.

[0125] For example, the circuit board 190 may be disposed in the first mounting recess 41.

[0126] The circuit board 190 may include terminals that are electrically connected to the coil, such as a first terminal 91 and a second terminal 92, and the terminals of the circuit board 190 may be disposed or located on the body 213 of the base 210.

[0127] For example, circuit board 190 can be a printed circuit board or a flexible printed circuit board (FPCB).

[0128] Next, coil 120 will be described.

[0129] The coil 120 can be disposed, mounted, or fixed to the circuit board 190 such that it corresponds to or faces the magnet 130. For example, the coil 120 can be disposed on a first surface of the circuit board 190, and the terminals 91 and 92 can be disposed on a second surface of the circuit board 190.

[0130] Although adhesive components may be used, for example, to secure or attach the coil 120 to the circuit board 190, this disclosure is not limited thereto.

[0131] The coil 120 can be located between the first post 216a and the second post 216b of the base 210.

[0132] Coil 120 may be, for example, a coil loop with a ring shape. For example, coil 120 may have an elongated ring in which its horizontal length is greater than its vertical length.

[0133] To generate an electromagnetic force due to electromagnetic interaction with magnet 130, a drive signal can be applied to coil 120. Here, the drive signal applied to coil 120 can be a DC signal, and can be of voltage or current type. For example, the drive signal applied to coil 120 can include at least one of DC and AC signals.

[0134] The coil 120, to which a drive signal is applied, can electromagnetically interact with the magnet 130 disposed at the line cylinder 110, and the AF actuation unit can move along a first direction by the electromagnetic force generated by the electromagnetic interaction between the coil 120 and the magnet 130. By controlling the strength of the drive signal, the movement of the AF actuation unit in the first direction can be controlled, thus enabling the execution of an autofocus function.

[0135] The AF actuation unit may include a spool 110 and components mounted on and moving with the spool 110. For example, the AF actuation unit may include the spool 110 and a magnet 130.

[0136] The coil 120 can be electrically connected to the first terminal 91 and the second terminal 92 of the circuit board 190. For example, the two ends of the coil 120 can be electrically connected to pads (not shown) disposed on the first surface of the circuit board 190, and the pads (not shown) can be electrically connected to a corresponding terminal of the first terminal 91 and the second terminal 92 of the circuit board 190.

[0137] The drive signal can be applied to the coil 120 via the first terminal 91 and the second terminal 92 of the circuit board 190.

[0138] Next, the first roller unit 150 and the second roller unit 160 will be described.

[0139] The first roller unit 150 may be disposed in the first groove 51a such that it contacts at least two regions of the first groove 51a. For example, the first roller unit 150 (e.g., rollers P1 to P3) may contact four regions of the first groove 51a.

[0140] The second roller unit 160 may be disposed in the second groove 51b such that it contacts at least two regions of the second groove 51b. For example, the second roller unit 160 (e.g., rollers Q1 to Q3) may contact four regions of the second groove 51b.

[0141] The first roller unit 150 may include at least one roller (e.g., P1 to P3) and may be disposed in the first groove 51a in the first support 216a of the base 210.

[0142] Roller unit 160 may include at least one roller (e.g., Q1 to Q3) and may be disposed in a second groove 51b in the second pillar 216b of base 210.

[0143] The first roller unit 150 can contact the first support member 116a of the bobbin 110, and the second roller unit 150 can contact the second support member 116b of the bobbin 110.

[0144] When the bobbin 110 moves in the optical axis direction, the first roller unit 150 and the second roller unit 160, which are in contact with the first support member 116a and the second support member 116b respectively, can roll or rotate, thereby supporting and guiding the bobbin 110 in the optical axis direction.

[0145] Friction can be generated between the first roller unit 150 and the second roller unit 160 and the first support member 116a and the second support member 116b of the bobbin 110. This friction can be affected by the contact area between the first and second rollers and the first and second supports. In other words, the friction can increase as the contact area between the rollers and the supports increases.

[0146] Each of the first roller unit 150 and the second roller unit 160 may include multiple rollers. For example, each of the first roller unit 150 and the second roller unit 160 may include two, three, four or more rollers.

[0147] Although the first roller unit 150 may include three rollers (P1 to P3), this disclosure is not limited thereto. The number of rollers may be one or more.

[0148] Although the second roller unit 160 may include three rollers (Q1 to Q3), this disclosure is not limited thereto. The number of rollers may be one or more.

[0149] Figure 5 This is an enlarged view of the first groove 51a formed in the first support 216a. Figure 6 yes Figure 4 An enlarged view of roller P1 shown. Figure 7 This is a top view of the lens moving device 100, from which the cover member 300 has been removed. Figure 8 yes Figure 7 The image shows a cross-sectional view of the lens moving device 100 taken along line AB. Figure 9 yes Figure 7 The image shows a cross-sectional view taken along line CD of the lens moving device 100.

[0150] Reference Figures 5 to 9 The first groove 51a may include a side surface 51-1 and a bottom surface 51-2.

[0151] The bottom 51-2 of the first groove 51a may have a predetermined depth in the optical axis direction from the upper surface 210a of the base 210. For example, the bottom 51-2 of the first groove 51a may be based on the lower surface of the base 210 and located at a position higher than the upper surface 210a of the base 210.

[0152] The bottom 51-2 of the first groove 51a may have a groove or hole 60 formed therein. Although the groove 50 may expose the upper surface of the base through the groove or hole 60, this disclosure is not limited thereto.

[0153] The bottom 51-2 of the first groove 51a may include a first bottom 51-2a and a second bottom 51-2b spaced apart from each other, and the groove 60 may be disposed between the first bottom 51-2a and the second bottom 51-2b.

[0154] Because of the groove 60, the size of the surface area of ​​the roller P3 that contacts the bottom 51-2 of the first groove 51a can be reduced. As a result, the friction between the roller P3 and the first column 216a can be reduced, and the friction between the roller P3 and the first support 116a can also be reduced.

[0155] A first opening 61a may be formed in the first side surface 51-1a of the first groove 51a, the first opening 61a opening at the inner surface of the first support 216a, and a first guide groove 52a may be formed in the second side surface 51-1b of the first groove 51a.

[0156] The first opening 61a in the first pillar 216a can expose a portion or a surface of the rollers P1 to P3 inserted therethrough or set in the first groove 51a.

[0157] The first opening 61a may have a size sufficient to allow the first support 116a to be inserted therein.

[0158] For example, the horizontal length D2 of the first opening 61a can be greater than the horizontal length D1 of the first support member 116a (D2 > D1). The vertical length H2 of the first opening 61a can be equal to or greater than the vertical length H1 of the first support member 116a (H2 ≥ H1).

[0159] For example, the first support 116a can be inserted into the first opening 61a to contact the rollers P1 to P3 disposed in the first groove 51a and spaced apart from the first pillar 216a of the base 210.

[0160] The first guide groove 52a may have a shape that is recessed from the second side surface 51-1b of the first groove 51a, and may have a semi-circular shape or a semi-cylindrical shape; however, the shape is not limited to this.

[0161] For example, the height of the bottom 52-1 of the first guide groove 52a may be equal to the height of the bottom 51-2 of the first groove 52a; however, this disclosure is not limited thereto.

[0162] Reference Figure 6 Although roller P1 may have a cylindrical or cylindrical shape, this disclosure is not limited thereto.

[0163] The length L of roller P1 can be greater than its diameter R.

[0164] The ratio of the diameter R of each roller (e.g., P1 to P3) to the longitudinal length L of each roller (e.g., P1 to P3) can be 1:1.5 to 1:5.

[0165] For example, the ratio of the diameter R of roller P1 to the length L of roller P1 can be 1:1.5 to 1:5.

[0166] Here, the ratio of diameter to length (R:L) can also be 1:2 to 1:3.

[0167] For example, when the length-to-diameter ratio (L / R) of roller P1 is less than 1.5, the effect of preventing the bobbin 110 from moving in the x-axis or y-axis direction may be reduced.

[0168] When the length-to-diameter ratio (L / R) of roller P1 is greater than 5, the size of the first support 216a used to accommodate the roller may increase, and spatial interference between coil 120 and circuit board 190 may occur.

[0169] The second groove 51b formed in the second pillar 216b can have the same shape as the first groove 51a, and regarding Figure 5 The description of the first groove 51a shown can also be applied to the second groove 51b.

[0170] In addition, regarding Figure 6 The description of roller P1 shown can also be applied to the remaining rollers P2 and P3 of the first roller unit 150 and rollers Q1 to Q3 of the second roller unit 160.

[0171] To prevent the first roller unit 150 and the second roller unit 160 from separating from the first groove 51a and the second groove 51b, the cover member 300 may include a first protrusion 311 and a second protrusion 312.

[0172] The first protrusion 311 of the cover member 300 can be inserted into or disposed in the first guide groove 52a, and the second protrusion 312 of the cover member 300 can be inserted into or disposed in the second guide groove 52b.

[0173] Figure 11 It shows Figure 7 A portion of the cross-section taken along line CD. Figure 11 The sectional view shows the cover member 300.

[0174] Reference Figure 1 and Figure 11 The cover member 300 may include a first protrusion 311, which corresponds to the first roller unit 150 and protrudes from the inner surface of the top plate.

[0175] In addition, the cover member 300 may include a second protrusion 312, which corresponds to the second roller unit 160 and protrudes from the inner surface of the top plate.

[0176] The first protrusion 311 can protrude downward from the inner surface of the top plate of the cover member 300, and can be inserted into or disposed in the first groove 51a and the first guide groove 52a.

[0177] The second protrusion 312 can protrude downward from the inner surface of the top plate of the cover member 300, and can be inserted into or disposed in the second groove 51b and the second guide groove 52b.

[0178] Each of the first protrusion 311 and the second protrusion 312 may have a groove shape recessed from the upper surface of the top plate of the cover member 330.

[0179] Reference Figure 7 The center 7a of the opening 101 may not be aligned with the center 7b of the base 210, and may be located further away from the center 7b of the base 210 than the magnet 130. In other words, the center of the lens mounted in the tube 110 may be located further away from the magnet 130 than the center 7b of the base 210.

[0180] For example, the center 7b of the base 210 can be located between the center 7a of the opening 101 in the spool 110 and the magnet 130.

[0181] The protrusions 118a to 118d of the spool 110 can be located between the supports 216a to 216d of the base 210. For example, each of the protrusions 118a to 118d of the spool 110 can be located between two adjacent supports 216a and 216b, 216b and 216c, 216c and 216d, and 216d and 216a. Because each of the protrusions 118a to 118d of the spool 110 can be located between two adjacent supports 216a and 216b, 216b and 216c, 216c and 216d, and 216d and 216a, the size of the lens moving device 100 can be reduced or decreased.

[0182] Each of the rollers P1 to P3 of the first roller unit 150 and the rollers Q1 to Q3 of the second roller unit 160 can contact the side surfaces (e.g., 51-1) of the first groove 51a and the second groove 51b. For example, the outer surface of each of the rollers P1 to P3 and the rollers Q1 to Q3 can make surface contact with the side surfaces (e.g., 51-1) of the first groove 51a and the second groove 51b.

[0183] In another embodiment, the side surfaces (e.g., 51-1) of the first groove 51a and the second groove 51b may be provided with a plurality of protrusions. The plurality of protrusions may contact the outer surfaces of rollers P1 to P3 and rollers Q1 to Q3.

[0184] Figures 14a to 14c This is a partial perspective view of base 210A according to another embodiment.

[0185] Reference Figures 14a to 14c The side surfaces 51-1a, 51-1b and 51-1c of the first groove 51a of the base 210A may be provided with a plurality of protrusions 14a to 14c or 14d corresponding to rollers P1 to P3.

[0186] exist Figure 14aIn the first groove 51a, protrusions 14a, 14b and 14c may be provided at the first side surface 51-1a and the second side surface 51-1b of the first groove 51a.

[0187] exist Figure 14b In the middle, protrusions 14a, 14b and 14c can be provided at the first side surface to the third side surface 51-1a, 51-1b and 51-1c of the first groove 51a.

[0188] exist Figure 14a and Figure 14b In the middle, each of the protrusions 14a, 14b, and 14c may have a semi-circular shape. Figure 14c In the middle, the protrusion 14d can have a linear protrusion shape, and its cross-section has a semi-circular or arc shape.

[0189] The outer peripheral or side surface of each of rollers P1 to P3 and rollers Q1 to Q3 may contact a plurality of protrusions 14a to 14d and may be spaced apart from the first side surface to the third side surface 51-1a, 51-1b and 51-1c.

[0190] The side surface of the second groove 51b of the spool 110 may be provided with a plurality of protrusions corresponding to rollers Q1 to Q3. The description of the protrusions 14a to 14d provided on the side surface of the first groove 51b in the spool 110 can also be applied to the second groove 51b in the spool 110.

[0191] exist Figures 14a to 14c In this process, since rollers P1 to P3 and rollers Q1 to Q3 can make line contact or surface contact with protrusions 14a to 14d, therefore... Figure 1 Compared to the base 210 shown, Figures 14a to 14c The friction between the base 210A shown and the rollers P1, P2 and P3 can be reduced.

[0192] Reference Figure 8 At the initial position of the AF action unit (e.g., at the initial position of the coil 110), the coil 120 may overlap with the magnet 130 in a direction from the first post 216a toward the fourth post 216d.

[0193] Here, the initial position of the AF actuation unit (e.g., the drum 110) can be the original position of the AF actuation unit when no power is applied to the coil 120. Alternatively, the initial position of the AF actuation unit can be the position of the AF actuation unit when gravity acts in the direction from the drum 110 to the base 210 or when gravity acts in the direction from the base 210 to the drum 110.

[0194] For example, in the direction from the first pillar 216a toward the fourth pillar 216d, the upper part 120-1 of the coil 120 may overlap with the first magnet part 31 of the magnet 130, the lower part 120-2 of the coil 120 may overlap with the second magnet part 32 of the magnet 130, and the space between the upper part 120-1 and the lower part 120-2 of the coil 120 may overlap with the non-magnetic partition 33 of the magnet 130.

[0195] Figure 10 yes Figure 7 A magnified view of a portion of the image. About Figure 10 The description can also be applied to the roller unit 1160 and the second support member 116b of the spool 110.

[0196] Reference Figure 7 and Figure 10 The rollers P1 to P3 of the first roller unit 150 can be set to be inclined at a first angle θ1 relative to the first reference line 501.

[0197] Furthermore, the rollers Q1 to Q3 of the second roller unit 160 can be configured to be tilted at a second angle (not shown) relative to the first reference line.

[0198] Here, the first baseline 501 can be an imaginary line (e.g., the x-axis) parallel to the direction from the first pillar 216a toward the second pillar 216b.

[0199] For example, the first reference line 502 may extend through the point where the rollers (e.g., P1, P2, and P3) of the first roller unit 150 meet the first support member 116a. Alternatively, the first reference line may extend through the point where the rollers (e.g., Q1, Q2, and Q3) of the second roller unit 160 meet the second support member 116b.

[0200] For example, the central axis 601 of the rollers (e.g., P1, P2, and P3) (see...) Figure 6 The rollers of the second roller unit 160 (e.g., Q1, Q2, and Q3) can be tilted relative to the first reference line 501 at a first angle (θ1). Furthermore, the central axis of the rollers of the second roller unit 160 can be tilted relative to the first reference line at a second angle.

[0201] For example, the first angle θ1 could be the central axis 601 of the rollers (e.g., P1, P2, and P3) (see [reference]). Figure 6 The second angle can be the angle between the rollers of the second roller unit 160 (e.g., Q1, Q2 and Q3) and the first reference line 501.

[0202] For example, the first angle θ1 can be the angle at which the central axis 601 of the rollers (e.g., P1, P2 and P3) of the first roller unit 150 rotates clockwise relative to the first reference line 501.

[0203] In addition, the second angle can be the angle at which the central axis of the rollers (e.g., Q1, Q2 and Q3) of the second roller unit 160 rotates clockwise relative to the first reference line.

[0204] For example, the central axis 601 of the rollers (e.g., P1, P2, and P3) of the first roller unit 150 (see...) Figure 6 The center axis 601 can be an axis that extends through the center of the rollers (e.g., P1, P2, and P3) and is parallel to the longitudinal direction of the rollers (e.g., P1, P2, and P3). For example, the center of the rollers (e.g., P1, P2, and P3) can be the diameter center of the rollers. The description of the center axis 601 of the rollers (e.g., P1, P2, and P3) of the first roller unit 150 can be applied to the center axis of the rollers (e.g., Q1, Q2, and Q3) of the second roller unit 160.

[0205] Each roller (e.g., P1, P2, and P3) can be configured to rotate about an axis perpendicular to the optical axis.

[0206] For example, rollers (e.g., P1, P2, and P3) can be configured such that the central axis 601 is perpendicular to the optical axis OA, and rollers (e.g., P1, P2, and P3) can rotate about the central axis 601. Furthermore, rollers Q1, Q2, and Q3 of the second roller unit 160 can be configured such that their central axes are perpendicular to the optical axis OA, and rollers Q1, Q2, and Q3 of the second roller unit 160 can rotate about the central axis.

[0207] The first angle θ1 and the second angle can be different from each other.

[0208] For example, the first angle θ1 can be 30° to 60°, and the second angle can be 120° to 150°. For example, the second angle can be a value obtained by subtracting the first angle θ1 from 180°.

[0209] For example, the first angle θ1 can be 40°~50°.

[0210] For example, the first angle θ1 can be 43°~47°.

[0211] For example, the first angle θ1 can be 45°.

[0212] When the first angle θ1 is less than 40°, the effect of suppressing the movement of the bobbin 110 in the x-axis direction may decrease. When the first angle θ1 is less than 40°, the effect of suppressing the movement of the bobbin 110 in the x-axis direction may decrease. When the first angle θ1 is greater than 60°, the effect of suppressing the movement of the bobbin 110 in the y-axis direction may decrease.

[0213] Since the rollers P1 to P3 of the first roller unit 150 are configured to be inclined at a first angle θ1 relative to the first reference line 501, and the rollers Q1 to Q3 of the second roller unit 160 are configured to be inclined at a second angle relative to the first reference line, movement of the bobbin 110 in a direction parallel to the first reference line 501 (e.g., in the x-axis direction) or in a direction parallel to the second reference line 502 (e.g., in the y-axis direction) can be suppressed. For example, the second reference line 502 may be an imaginary line perpendicular to the first reference line 501.

[0214] For example, when the first angle θ1 is 45° and the second angle is 135°, the rollers P1 to P3 of the first roller unit 150 and the rollers Q1, Q2 and Q3 of the second roller unit 160 can suppress the movement of the bobbin 110 in the x-axis direction and the y-axis direction in a balanced manner.

[0215] For example, the centerline 503 of the first support member 116a of the spool 110 and the center axis 601 of the rollers (e.g., P1, P2 and P3) can be perpendicular to each other, and the centerline of the second support member 116b of the spool 110 and the center axis of the rollers (e.g., Q1, Q2 and Q3) can be perpendicular to each other; however, this disclosure is not limited thereto.

[0216] The centerline 503 of the first support member 116a can be a line that extends through the point where the first support member contacts the roller (e.g., P1, P2, or P3) and divides the first support member 116a into two parts. For example, the centerline 503 of the first support member 116a can be a line that divides the first support member 116a into two symmetrical parts.

[0217] Furthermore, the centerline of the second support 116b can be a line that extends through the point where the second support contacts the roller (e.g., Q1, Q2, or Q3) and divides the second support 116b into two parts. For example, the centerline of the second support 116b can be a line that divides the second support 116b into two symmetrical parts.

[0218] exist Figure 10 The description of the arrangement of rollers P1 to P3 of the first roller unit 150 can also be applied to the arrangement of rollers Q1 to Q3 of the second roller unit 160.

[0219] The first roller unit 150 and the second roller unit 160 can be configured relative to the centerline 701 (see...). Figure 7 Symmetrical, the center line 701 is parallel to the direction from the first support 216a toward the fourth support 216d and extends through the center of the opening 101 in the spool 110.

[0220] Next, the magnetic body 195 will be described.

[0221] The magnetic body 195 can be disposed at the base 210 and can be located below the coil 120.

[0222] For example, the magnetic body 195 can be disposed on the outer surface of the base 210.

[0223] For example, an attractive force can act between magnetic body 195 and magnetic body 130.

[0224] For example, the magnetic body 195 can be positioned lower than the magnet 130 based on the lower surface of the base, and can be used to suppress the tilting of the spool 110 during its movement. The magnetic body 195 can also be referred to as a "tilt suppressor," "tilt compensator," or "tilt controller" because the magnetic body suppresses the occurrence of tilting of the spool 110.

[0225] In the lens moving device 100 according to the embodiment, since the magnet 130 is only provided on one side surface 110b-1 of the spool 110 and only one coil 120 is provided to correspond to one magnet 130, an imbalance of electromagnetic force may occur between the side surface 110b-1 of the spool 110 on which the magnet 130 is provided and the opposite side surface 110b-3.

[0226] Due to the imbalance of electromagnetic forces, the spool 110 may tilt during its movement. However, since the magnetic body 195 is made of a material attracted by the magnet 130, the embodiment is able to suppress the tilting of the spool.

[0227] The magnetic body 195 may be made of a material that is attracted by a magnet, such as a magnetic material (e.g., a material with magnetism).

[0228] In another embodiment, the magnetic body 1195 may be made of a material that is attracted by the magnet, such as a metallic material (e.g., iron).

[0229] The magnetic element 195 can be disposed on the outer surfaces of the first support column 216a and the second support column 216b, as well as on the outer surface of the first side portion 218a of the main body 213 of the base 210. For example, the magnetic element 195 can be disposed in the second mounting recess 42.

[0230] The magnetic body 195 may be plate-shaped. For example, the magnetic body 195 may include: a plate 195-1; a first extension 195-2 extending upward from one end of the plate 195-1; and a second extension 195-3 extending upward from the other end of the plate 195-1.

[0231] The plate 195-1 of the magnetic body 195 can be disposed on the outer surface of the first side portion 218a of the main body 213 of the base 210. For example, the magnetic body 195 can be fixed or attached to the base 210 using an adhesive member.

[0232] The first extension 195-2 may be disposed on the side surface (e.g., the outer surface) of the first pillar 216a and may extend in a direction from the lower surface of the base 210 toward the upper surface.

[0233] The second extension 195-3 may be disposed on the side surface (e.g., the outer surface) of the second pillar 216b and may extend in a direction from the lower surface of the base 210 toward the upper surface.

[0234] The first extension 195-2 and the second extension 195-3 can improve the bonding force between the magnet 195 and the base 210.

[0235] To increase the force acting between magnet 130 and magnetic body 195, the horizontal length L1 of plate 195-1 of magnetic body 195 (see...) Figure 4 The horizontal length L2 can be greater than that of the magnet (see [reference]). Figure 2 However, this disclosure is not limited thereto. In another embodiment, L1 may be equal to L2.

[0236] Because the attraction acts between the magnet 195 and the magnet 130, the initial position of the spool 110 can be set even when the drive signal is not applied to the coil 120.

[0237] For example, when no drive signal is applied to coil 120, the spool 110 can be positioned at its lowest point by the attraction force acting between magnet 195 and magnet 130. Here, the lowest point of the spool 110 can be the lowest position from base 210 within the displacement range of the spool 110. Here, the lowest position of the spool 110 can be the initial position of the spool 110.

[0238] For example, when the drive signal is not applied to the coil 120, the force acting between the magnet 195 and the magnet 140 can be equal to or greater than the force required to set the spool 110 at its lowest position.

[0239] Since the initial position of the spool 110 can be set by the attraction force between the magnet 195 and the magnet 130, accurate AF operation can be performed even without an additional position sensor.

[0240] Since the center of the spool 110 is not aligned with the center of the base and only one magnet 130 is used, the embodiment is able to reduce the number of parts.

[0241] Because the embodiment includes a roller instead of a spring, it is able to reduce the amount of current consumed during AF operation compared to lens moving devices that use springs. Furthermore, the reduced stabilization time allows for an increase in the speed of AF operation.

[0242] Since the magnets 195 and 130 are located on one side 218a of the main body 213 of the base 210, the embodiment is able to perform tilt compensation and drive action simultaneously.

[0243] Because of the lubricant injected into the first groove 51a and the second groove 51b through the first guide groove 52a and the second guide groove 52b, the rotation and drive of the first roller unit 150 and the second roller unit 160 can be smooth.

[0244] Furthermore, since rollers P1 to P3 and rollers Q1 to Q3 are set to be tilted at a predetermined angle relative to the first reference line 501, the embodiment is able to suppress the movement of the bobbin 110 in the x-axis direction and the y-axis direction.

[0245] Since the cover member 300 includes a first protrusion 311 and a second protrusion 312, the embodiment is able to prevent rollers P1 to P3 and rollers Q1 to Q3 from separating from the first groove 51a and the second groove 51b.

[0246] although Figures 1 to 11 The illustrated embodiment does not include a position sensor, but this disclosure is not limited thereto. A lens-mounted mobile device according to another embodiment may further include a position sensor.

[0247] Figure 12 A position sensor 170 is shown, which is additionally disposed at the lens moving device 100. Figure 13 It includes Figure 12 A cross-sectional view of an embodiment of the position sensor 170.

[0248] Reference Figure 12 and Figure 13 The position sensor 170 can be set or mounted on the circuit board 190 and can be located in the space of the coil 120.

[0249] For example, the position sensor 170 may be located in the space between the upper part 120-1 and the lower part 120-2 of the coil 120.

[0250] For example, the position sensor 170 may overlap with the non-magnetic partition 33 in the direction from the first pillar 216d toward the fourth pillar 216d.

[0251] The position sensor 170 can detect the strength of the magnetic field of the magnet 130 mounted on the bobbin 110 based on the movement of the bobbin 110, and can output an output signal corresponding to the detected strength. The position sensor 170 can be disposed on the first surface of the circuit board 190. Here, the first surface of the circuit board 190 can be the surface on which the coil 120 is disposed.

[0252] The position sensor 170 can be implemented as a driver IC type that includes a Hall sensor, or it can be implemented as a single position detection sensor such as a Hall sensor.

[0253] For example, when the position sensor 170 is implemented using only one Hall sensor, the position sensor 170 may include two input terminals and two output terminals.

[0254] Circuit board 190 may be electrically connected to position sensor 170. For example, four terminals of position sensor 170 may be electrically connected to circuit board 190, and circuit board 190 may further include terminals electrically connected to the four terminals of position sensor. For example, circuit board 190 may include two terminals electrically connected to coil 120 and four terminals electrically connected to position sensor 170.

[0255] When the position sensor 170 is a drive IC type sensor including a Hall sensor, the circuit board 190 may include four terminals electrically connected to the position sensor 170, since a drive signal is applied from the position sensor 170 to the coil 120.

[0256] Figure 15 This is a perspective view of a spool according to another embodiment. Figure 16 This is a perspective view of the base according to another embodiment. Figure 17 yes Figure 15 The spool shown and Figure 16 The diagram shows the assembled three-dimensional view of the base. Figure 18 yes Figure 15 The spool shown and Figure 16 The diagram shows a perspective view of the base, the first roller unit 150 and the second roller unit 160, the first coil 120 and the circuit board 190.

[0257] exist Figures 15 to 18 In, with Figures 1 to 13 The same reference numerals in the accompanying drawings indicate the same parts, and descriptions of the same parts are simplified or omitted.

[0258] Reference Figures 15 to 18 , Figure 15 The spool shown may include a first groove for supporting the first roller unit 150 and a second groove for supporting the second roller unit 160.

[0259] For example, Figure 15 The spool shown may include a first support groove 15a located on the right side of the first support member 116a and a second support groove 15b located on the left side of the first support member 116a.

[0260] also, Figure 15The spool shown may include a third support groove 15c located on the left side of the second support member 116b and a fourth support groove 15d located on the right side of the second support member 116b.

[0261] For example, the first support groove 15a may be located on the right side of the first support member 116a, on a side surface of the first protrusion 118a, and the second support groove 15b may be located on the left side of the first support member 116a, on a side surface of the fourth protrusion 118d.

[0262] For example, the third support groove 15c can be located on the left side of the second support member 116a, on the other side surface of the first protrusion 118a, and the fourth support groove 15d can be located on the right side of the second support member 116b, on one side surface of the second protrusion 118b.

[0263] Figure 16 The inner surface of the first support 216a of the base shown can be provided with a... Figure 15 The first mounting groove 16a corresponding to the first support groove 15a in the spool shown, and the first mounting groove 16a corresponding to the first support groove 15a in the spool shown, and the first mounting groove 16a corresponding to the first mounting groove 16a in the spool shown, and the first mounting groove 16a corresponding to the first mounting groove 15 ... Figure 15 The second mounting groove 16b corresponds to the second support groove 15b in the spool shown.

[0264] Figure 16 The inner surface of the second pillar 216b of the base shown can be provided with a similar shape to... Figure 15 The third mounting groove 16c corresponding to the third support groove 15c of the spool shown, and the ... mounting groove 16c of the spool shown. Figure 15 The fourth support groove 15d of the spool shown corresponds to the fourth mounting groove 16d.

[0265] Reference Figure 17 , Figure 15 The first support groove 15a and the second support groove 15b in the spool shown, as well as the first mounting groove 16a and the second mounting groove 16b corresponding to the first support groove 15a and the second support groove 15b, can define the first groove, into which the first roller unit 150 is inserted, set, or mounted.

[0266] also, Figure 15 The third support groove 15c and the fourth support groove 15d in the spool shown are as follows Figure 16 The third mounting groove 16c and the fourth mounting groove 16d in the second pillar 216b shown can jointly define the second groove, into which the second roller unit 160 is inserted, set, or mounted.

[0267] Reference Figure 18 The first roller unit 150 can be connected with Figure 15 The first support groove 15a and the second support groove 16b in the spool shown are Figure 16 The first mounting groove 16a and the second mounting groove 16b in the first pillar 216a shown are in contact.

[0268] The second roller unit 160 can be connected with Figure 15 The third support groove 15c and the fourth support groove 15d in the spool shown are as follows Figure 16 The third mounting groove 16c and the fourth mounting groove 16d in the second pillar 216b shown are in contact.

[0269] exist Figures 1 to 13 In the embodiment shown, the first roller unit 150 is inserted into or disposed in the first groove 51a formed in the first pillar 216a, and the second roller unit 160 is inserted into or disposed in the second groove 51b formed in the second pillar 216b.

[0270] In contrast, Figures 15 to 18 In the illustrated embodiment, the first roller unit 150 and the second roller unit 160 may be disposed or installed in a groove defined by the first support groove 15a to the fourth support groove 15d formed in the bobbin, and the first mounting groove 16a and the second mounting grooves 16a to 16d.

[0271] Figures 7 to 10 The description can also be applied to Figures 15 to 18 Examples of implementations.

[0272] The protrusions 14a, 14b, 14c and 14d shown in Figures 14A to 14C can be applied to Figures 15 to 18 The embodiment shown, and the description of the protrusions 14a, 14b1, 14, can also be applied here.

[0273] Figure 12 The position sensor 170 shown can be applied to Figures 15 to 18 The embodiment shown, and the description of the position sensor 170, can be applied here.

[0274] Figure 19 An exploded perspective view of a lens moving device 1100 according to another embodiment is shown.

[0275] Reference Figure 19 The lens moving device 1100 may include a cover member 1300, a spool 1110, a coil 1120, a magnet 1130, a first roller unit 1150, a second roller unit 1160, a circuit board 1190, a magnet 1195, and a base 1210.

[0276] First, the cover component 1300 will be described.

[0277] The cover member 1300 can accommodate other components 1110, 1120, 1130, 1150, 1160, 1190, and 1195 within a space defined by its combination with the base 1210. (Regarding...) Figure 1 The description of the cover member 300 shown can be applied to Figure 19 The cover component 1300 shown is shown.

[0278] Next, the spool 1110 will be described.

[0279] Figure 20 yes Figure 19 A perspective view of the spool 1110 and the magnet 1130 shown. Figure 21 It shows Figure 20 A perspective view of the first groove 1051a and the second groove 1051b in the bobbin 1110 shown, as well as the first roller unit 1150 and the second roller unit 1160. (Regarding...) Figure 6 The description of roller P1 shown can be applied to Figure 20 and Figure 21 The roller units 1150 and 1160 shown include rollers P1 to P3 and rollers Q1 to Q3.

[0280] Reference Figure 20 and Figure 21 The spool 1110 can be located inside the supports 1216a to 1216d of the base 1210 and can be moved in a first direction (e.g., in the z-axis direction) by the electromagnetic interaction between the coil 1120 and the magnet 1130. For example, the spool 1110 can be moved from its initial position in one direction, for example, in the upward direction.

[0281] The spool 1110 may include an opening 1101, in which a lens or lens barrel is mounted. The description of the opening 101 in the spool 110 can be applied to the opening 1101 in the spool 1110.

[0282] The spool may include at least one stop 1111 disposed on its upper surface. Regarding Figure 2 The description of the stop 111 shown can also be applied to the stop 1111 of the spool 1110.

[0283] The spool 1110 may have a mounting recess 1102 formed on its outer surface for mounting a magnet 1130. The description of the mounting recess 102 in the spool 1100 can be applied to the mounting recess 1102 in the spool 1100.

[0284] The spool 1110 may include side surfaces 1110c-1 to 1110c-4, a side surface 1110b-1 between side surfaces 1110c-1 and 1110c-2, a side surface 1110b-2 between side surfaces 1110c-2 and 1110c-3, a side surface 1110b-3 between side surfaces 1110c-3 and 1110c-4, and a side surface 1110b-4 between side surfaces 1110c-4 and 1110c-1.

[0285] The side surfaces 1110c-1 to 1110c-4 of the spool 1110 can correspond to the supports 1216a to 1216d of the base 1210, and the side surfaces 1110b-1 to 1110b-4 of the spool 1110 can correspond to the space between the supports 1216a to 1216d of the base 1210.

[0286] The spool 1110 may include protrusions 118a to 118d projecting from its outer surface 1110b. For example, the outer surface of the protrusions 118a to 118d may be the side surfaces 1110b-1 to 1110b-4 of the spool 1110.

[0287] The mounting recess can be formed in the first protrusion 118a and can have the same or a shape as the magnet 1130.

[0288] The spool 1110 may have a first groove 1051a formed in the side surface 1110c-1 for setting the first roller unit 1150, and a second groove 1051b formed in the side surface 1110c-2 for setting the second roller unit 1160.

[0289] For example, a magnet 1130 can be disposed on a first side surface 1110b-1 of the spool 1110. A first groove 1051a can be formed in a second side surface 1110c-1 of the spool 1110 adjacent to the first side surface 1110b-1, and a second groove 1051b can be formed in a third side surface 1110c-2 of the spool 1110 adjacent to the first side surface 1110b-1. For example, the first side surface 1110b-1 of the spool 1100 can be disposed between the second side surface 1110c-1 and the third side surface 1110c-2 of the spool 1100. For example, the first side surface 1110b-1 of the spool 1100 can connect the second side surface 1110c-1 with its third side surface 1110c-2.

[0290] For example, the first groove 1051a can be disposed between the first protrusion 118a and the fourth protrusion 118d, and the second groove 1051b can be disposed between the first protrusion 118a and the second protrusion 118b.

[0291] For example, the first groove 1051a may have a shape that corresponds to or matches at least one of the rollers included in the first roller unit 1150, and the second groove 1051b may have a shape that corresponds to or matches at least one of the rollers included in the second roller unit 1160.

[0292] 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.

[0293] For example, the first groove 1051a may have a first opening 1061a formed in the side surface 1110c-1 of the tubular 1110, and the second groove 1051b may have a second opening 1061b formed in its side surface 1110c-2.

[0294] Due to the first opening 1061a and the second opening 1061b, the friction between the first roller unit 1150 and the second roller unit 1160 and the first groove 1051a and the second groove 1051b can be reduced, and by controlling the size of the openings, the desired friction can be obtained between the first roller unit 1150 and the second roller unit 1160 and the bobbin 1110.

[0295] Lubricant can be injected into the first groove 1051a and the second groove 1051b in the bobbin 1110. The lubricant can reduce the friction between the first roller unit 1150 and the second roller unit 1160 and the first groove 1051a and the second groove 1051b, and can make the rotation of the first roller unit 1150 and the second roller unit 1160 smooth.

[0296] Next, the first roller unit 1140 and the second roller unit 1160 will be described.

[0297] The first roller unit 1150 may include at least one roller (e.g., P1 to P3) and may be disposed in a first groove 1051a in the bobbin 1110.

[0298] The second roller unit 1160 may include at least one roller (e.g., Q1 to Q3) and may be disposed in a first groove 1051b in the bobbin 1110.

[0299] For example, the first roller unit 1150 may contact at least two regions of the first groove 1051a in the spool 1110, and the second roller unit 1150 may contact at least two regions of the second groove 1051b in the spool.

[0300] The first roller unit 1150 can contact the first support member 1116a of the base 1210, and the second roller unit 1150 can contact the second support member 1116b of the base 1210.

[0301] When the bobbin 1110 moves along the optical axis, each of the first roller unit 1150 and the second roller unit 1160 that contacts the first support member 1116a and the second support member 1116b can perform rolling or rotation, thereby supporting and guiding the movement of the bobbin 1110 along the optical axis.

[0302] Friction can act between the first roller unit 1150 and the second roller unit 1160 and the first support member 1116a and the second support member 1116b of the base 1210, and the friction can be affected by the contact area between the first roller unit 1150 and the second roller unit 1160 and the first support member 1116a and the second support member 1116b. In other words, the larger the contact area, the greater the friction.

[0303] Each of the first roller unit 1150 and the second roller unit 1160 may include a plurality of rollers. For example, the number of rollers included in each of the first roller unit 1150 and the second roller unit 1160 may be two, three, four or more.

[0304] For example, the first roller unit 1150 may include three rollers P1 to P3, and the second roller unit 1160 may include three rollers Q1 to Q3.

[0305] Reference Figure 21 The first groove 1051a may include a side surface 1051 and a bottom surface 1052.

[0306] For example, the side surface 1051 of each of the first groove 1051a and the second groove 1051b may include a first side surface 1051-1 to a third side surface 1051-3.

[0307] The first roller unit 1150 can contact the four regions of the first groove 1051a, and the second roller unit 1501b can contact the four regions of the second groove 1501b.

[0308] For example, the first roller unit 1150 may contact two regions of the first side surface 1051-1 and two regions of the second side surface 51-1. The second roller unit 1160 may contact two regions of the first side surface 1015-1 and two regions of the second side surface 51-2.

[0309] The bottom 1052 of the first groove 1051a may have a predetermined depth from the lower surface of the spool 1110 in the optical axis direction. For example, the bottom 1052 of the first groove 1051a may be located at a position higher than the lower surface of the spool 1110, based on the lower surface 1110.

[0310] The bottom 1052 of the first groove 1051a may have a groove or hole 1160a formed therein.

[0311] Although the groove 1160a may be a through hole, this disclosure is not limited thereto.

[0312] The bottom 1052 of the first groove 1051a may include a first bottom 1052a and a second bottom 1052b spaced apart from each other, and the groove 1060a may be disposed between the first bottom 1052a and the second bottom 1052b.

[0313] Because of the groove 1060a, the size of the surface area of ​​the roller P3 that contacts the bottom 1052 of the first groove 1051a can be reduced, thereby reducing the friction between the roller P3 and the groove 1051a in the bobbin 1110, and reducing the friction between the roller P3 and the first support member 1116a.

[0314] For example, a first opening 1061a may be formed in the first side surface 1051-1 of the first groove 1051a, the first opening 1061a being formed in the side surface 1110c-1 of the tube 1110.

[0315] The first opening 1061a can expose a portion or surface of the rollers P1 to P3 inserted or set in the first groove 1051a.

[0316] The first opening 1061a may have a size sufficient to allow the first support 1116a to be inserted therein.

[0317] For example, the horizontal length D21 of the first opening 1061a can be greater than the horizontal length D11 of the first support member 1116a (D21> D11), and the vertical length H21 of the first opening 1061a can be equal to or greater than the vertical length H11 of the first support member 1116a (H21≥H11).

[0318] For example, the first support member 1116a can be inserted into or disposed in the first opening 1061a such that it contacts the rollers P1 to P3 disposed in the first groove 1051a, but is spaced apart from the spool 1110, such as the first groove 1051a.

[0319] For example, the second support member 1116b can be inserted into or disposed in the second opening 1061b such that it contacts the rollers Q1 to Q3 disposed in the second groove 1051b, but is spaced apart from the spool 1110, such as the second groove 1051b.

[0320] Although roller P1 may have a cylindrical shape, this disclosure is not limited thereto.

[0321] The length L of roller P1 can be greater than the diameter R of roller P1. For example, the ratio of the diameter R of roller P1 to the length L of roller P1 can be 1:1.5 to 1:5.

[0322] For example, the ratio of diameter to length (R:L) can also be 1:2 to 1:3.

[0323] For example, when the length-to-diameter ratio (L / R) of roller P1 is less than 1.5, the effect of preventing the bobbin 110 from moving in the x-axis or y-axis direction may be reduced.

[0324] When the length-to-diameter ratio (L / R) of roller P1 is greater than 5, the size of the bobbin 1110 used to house the roller may increase, and spatial interference with the magnet 1130 may occur.

[0325] The second groove 1051b formed in the line cylinder 1110 can also have the same shape as the first groove 1051a. Regarding Figure 20 and Figure 21 The description of the first groove 1051a shown can also be applied to the second groove 1051b.

[0326] For example, the second groove 1051b may have a second opening 1061b, and the bottom of the second groove 1051b may have a groove with a through-hole shape formed therein.

[0327] The embodiment may further include a roller cover 1125 disposed on the upper part, upper end, or upper surface of the roller drum 1110 to prevent the first roller unit 1150 and the second roller unit 1160 from separating from the first groove 1051a and the second groove 1051b. Here, the roller cover 1125 may be referred to as a "cover", a "support" or a "separation prevention part".

[0328] Roller cover 1125 may be disposed above the first groove 1051a and the second groove 1051b in the bobbin 1110 to prevent the first roller unit 1150 and the second roller unit 1160 from separating from the first groove 1051a and the second groove 1051b.

[0329] The roller cover 1125 can cover at least a portion of the first groove 1051a and at least a portion of the second groove 1051b.

[0330] At least a portion of the roll cover 1125 may overlap with the rolls P1, P2 and P3 of the first roll unit 1150 in the optical axis direction.

[0331] Another portion of the roll cover 1125 may overlap with the rolls Q1, Q2 and Q3 of the second roll unit 1160 in the optical axis direction.

[0332] The spool 1110 may include a protrusion 1119 formed on its upper surface to support the roll cover 1125. Although the protrusion 1119 may abut the upper part of the inner surface of the opening 1101, the present disclosure is not limited thereto.

[0333] For example, the protrusion 1119 may include: a bend 1119a, the bend 1119a being adjacent to the inner surface of the opening 1101 of the tubing 1110; a first extension 1119b, the first extension 1119b being connected to one end of the bend 1119a and extending from the side surface 1110b-2 of the tubing 1110 toward the side surface 1110b-4 of the tubing 1110; and a second extension 1119c, the second extension 1119c being connected to the other end of the bend 1119a and extending from the side surface 1110b-4 of the tubing 1110 toward the side surface 1110b-2 of the tubing 1110.

[0334] Although each of the first extension 1119b and the second extension 1119c may have a linear shape, this disclosure is not limited thereto. In another embodiment, the extensions may have a curved shape.

[0335] The stop 1111 can be located at the drum 1110 between the protrusion 1119 (e.g., the bend 1119a) of the drum 1110 and the side surface 1110b-1 of the drum 1110.

[0336] Reference Figure 24 The roller cover 1125 may be disposed on the upper part or upper surface of the tube 1110. Although the roller cover 1125 may be, for example, an injection-molded plastic product, this disclosure is not limited thereto. In another embodiment, the roller cover 1125 may be made of a magnetic material or metal.

[0337] For example, the roller cover 1125 may be provided in a region (e.g., a second region) on the upper surface of the drum 1110 adjacent to the second surface 1110c-1 of the drum 1110 and in another region (e.g., a third region) on the upper surface of the drum 1110 adjacent to the third side surface 1110c-2 of the drum 1110.

[0338] For example, the roller cover 1125 may also be provided in another region (e.g., the first region), the second region, and the third region on the upper surface of the bobbin 1110 adjacent to the first side surface 1110b-1 of the bobbin 1110.

[0339] The roller cover 1125 may include: a curved portion 1125a corresponding to the opening 1101 in the spool 1110; a first extension 1125b connected to one end of the curved portion 1125a and extending from the side surface 1110b-2 of the spool 1110 toward the side surface 1110b-4; and a second extension 1125c connected to the other end of the curved portion 1119a and extending from the side surface 1110b-4 of the spool 1110 toward the side surface 1110b-2.

[0340] For example, the curved portion 1125a of the roller cover 1125 can correspond to the curved portion 1119a of the protrusion 1119 of the spool, and the curved portions 1125a and 1119a can contact each other.

[0341] For example, the curved portion 1125a of the roller cover 1125 may include a curved surface or a curved side surface adjacent to the curved portion 1119a of the protrusion 1119.

[0342] For example, the first extension 1125b of the roller cover 1125 may correspond to the first extension 1119b of the protrusion 1119 of the spool 1110, and the two extensions 1125b and 119b may contact each other.

[0343] For example, the second extension 1125c of the roller cover 1125 can correspond to the second extension 1119c of the protrusion 1119 of the spool 1110, and the two extensions 1125c and 1119c can contact each other.

[0344] The curved portion 1125a of the roller cover 1125 may have a groove 1125-1 corresponding to the stop 1111, and a portion of the stop 1111 may be coupled to or inserted into the groove 1125-1 in the roller cover 1125. Therefore, the contact area between the roller cover 1125 and the spool 1110 can be increased, thereby increasing the bonding force between the two components. An adhesive member can be used to attach or couple the roller cover 1125 to the spool 1110.

[0345] For example, the groove 1125-1 in the roller cover 1125 may be located on the side surface opposite to the curved surface (or curved side surface) of the roller cover 1125 that is adjacent to the curved portion 1119a of the protrusion 1119.

[0346] Another embodiment may replace the roller cover 1125, including: a first protrusion disposed on the top plate of the cover member 1300 and positioned corresponding to the first groove 1051a; and a second protrusion positioned corresponding to the second groove 1051b.

[0347] Next, magnet 1130 will be described.

[0348] Magnet 1130 can be set or installed on the line cylinder 1110.

[0349] For example, the magnet 1130 can be disposed on the side surface 1110b-1 of the tube 1110, for example, in the mounting recess 1102 formed in the outer surface of the first protrusion 118a.

[0350] Although the magnet 1130 may have a shape corresponding to the side surface 1110b-1 of the bobbin 1110, for example, a rectangular parallelepiped shape, this disclosure is not limited thereto.

[0351] Although magnet 1130 may be a bipolar magnet to increase the driving force generated by electromagnetic interaction with coil 1120, this disclosure is not limited thereto.

[0352] For example, magnet 1130 can be a bipolar magnetized magnet, which is divided into two poles in a direction perpendicular to the optical axis OA. Here, magnet 1130 can be implemented by ferrite magnet, AlNiCo alloy magnet, rare earth magnet, etc.

[0353] For example, magnet 1130 may include: a first magnet portion 31, which includes an N pole and a S pole; a second magnet portion 32, which includes an S pole and an N pole; and a non-magnetic partition 33.

[0354] The first magnet portion 31 and the second magnet portion 32 can be spaced apart from each other, and the non-magnetic partition 33 can be located between the first magnet portion 31 and the second magnet portion 32.

[0355] Non-magnetic partitions are almost entirely non-magnetic sections and can include areas that are almost non-polar. Non-magnetic partitions can be filled with air or non-magnetic materials and can be referred to as "neutral regions".

[0356] In another embodiment, magnet 1130 may be a unipolar magnetized magnet including an S pole and an N pole.

[0357] Next, the base 1210 will be described.

[0358] Figure 22 yes Figure 19 The first perspective view of the base 1210 shown. Figure 23 yes Figure 19 The second perspective view of the base 1210 shown.

[0359] Reference Figure 19 , Figure 22 and Figure 23 The base 1210 can be coupled to the cover member 1300 and together with the cover member 1300 can define a space for accommodating the spool 1110.

[0360] The base 1210 may have an opening 1301 therein that corresponds to the opening in the cover member 1300 and / or the opening in the spool 1110. The base 1210 may have a shape that matches or corresponds to the shape of the cover member 1300, for example, a square shape.

[0361] The base 1210 may include: a body 1213 having an opening 1301 therein; and struts 1216a to 1216d projecting from the body 1213.

[0362] The main body 1213 of the base 1210 may include corner portions 1217 to 1217d and side portions 1218a to 1218d located between the corner portions 1217 to 1217d.

[0363] Each of the supports 1216a to 1216d can be located at a corresponding corner of the corners 1217 to 1217d of the main body 1213.

[0364] For example, the base 1210 may include: a first pillar 1216a, which protrudes upward from a first corner 1217a to a predetermined height; a second pillar 1216b, which protrudes from a second corner 1217b to a predetermined height; a third pillar 1216c, which protrudes from a third corner 1217c to a predetermined height; and a fourth pillar 1216d, which protrudes from a fourth corner 1217d to a predetermined height.

[0365] The term "support" in base 1210 can be used interchangeably with "protrusion".

[0366] Although each of the pillars 1216a to 1216d may, for example, have a polygonal column shape or a circular or elliptical column shape that projectes vertically from the upper surface of the body 1213 of the base 1210, this disclosure is not limited thereto.

[0367] Although the cross-section of each of the pillars 1216a to 1216d may have an “L” shape or a polygonal shape such as a triangle, this disclosure is not limited thereto.

[0368] Although the horizontal length of each of the sides 218a to 218d of the body 1213 of the base 1210 may be greater than the horizontal length of each of the corners 1217 to 1271d of the body 1213 of the base 1210, this disclosure is not limited thereto.

[0369] An opening may be defined between two adjacent pillars 1216a and 1216b, 1216b and 1216c, 1216c and 1216d, and 1216d and 1216a.

[0370] Although each of the pillars 1216a to 1216d may be at the same height from the upper surface of the body 1214 of the base 1210, this disclosure is not limited thereto.

[0371] The base 1210 may include a stop 1023 projecting from the upper surface of the body 1213. Although at least one stop 1023, for example two stops 1023, may be provided on each of the second side 1218b and the fourth side 1218d, their position and number are not limited thereto. Each stop 1023 may be referred to as a “lower stop”.

[0372] The stop 23 can prevent the lower surface or lower end of the spool 1110 from directly colliding with the body 1213 of the base 1210.

[0373] The base 1210 may include a stop 1031 disposed on the upper surface or upper end of the support columns 1216a to 1216d. Each stop 1031 may be referred to as an "upper stop".

[0374] For example, the stop 1031 of the base 1210 may be a structure that protrudes along the optical axis from the upper surface of the support column 1216a to 1216d.

[0375] The stop 1031 of the base 1210 can be used to ensure space or clearance for the reel 1110 to move during AF operation.

[0376] A step 1211 may be provided at the lower end of the outer surface of the main body 1213 of the base 1210. The step 1211 may contact the lower end of the side plate of the cover member 1300 and may guide the cover member 1300. Here, the step 1211 of the base 1210 and the lower end of the side plate of the cover member 1300 may be bonded to each other and fixed in a sealed manner using an adhesive or the like.

[0377] The base 1210 may include a first support member 1116a disposed on the inner surface of the first support member 1216a and a second support member 1116b disposed on the inner surface of the second support member 1216b.

[0378] The first support member 1116a can protrude from the inner surface of the first pillar 1216a, and the second support member can protrude from the inner surface of the second pillar 1216b.

[0379] Although the first support member 1116a may have a cylindrical shape protruding from the inner surface of the first pillar 1216a, such as a semi-cylindrical shape, this disclosure is not limited thereto, and the first support member may have various cylindrical shapes.

[0380] Although the second support member 1116b may have a cylindrical shape protruding from the inner surface of the second pillar 1216b, for example, a semi-cylindrical shape, this disclosure is not limited thereto, and the second support member may have various cylindrical shapes.

[0381] For example, the inner surface of the first support 1216a can be the side surface of the side surface 1110c-1 facing the spool 1110, and the inner surface of the second support 1216b can be the side surface of the side surface 1110c-2 facing the spool 1110.

[0382] Although the first support member 1116a and the second support member 1116b may be symmetrical with respect to the first side 1218a of the base 1210, this disclosure is not limited thereto.

[0383] Reference Figure 23 The first support member 1116a may extend from the lower surface to the upper surface of the first pillar 1216a. The upper end or upper part of the first support member 1116a may be adjacent to the upper surface of the first pillar 1216a and may be located in the same plane as the upper surface of the first pillar 1216a; however, this disclosure is not limited thereto.

[0384] The second support member 1116b may extend from the lower surface to the upper surface of the second pillar 1216b. The upper end or upper part of the second support member 1116b may be adjacent to the upper surface of the second pillar 1216b and may be located in the same plane as the upper surface of the second pillar 1216b; however, this disclosure is not limited thereto.

[0385] In another embodiment, the upper end or upper portion of the first support member 1116a may be spaced apart from the upper surface of the first pillar 1216a. Furthermore, the lower end or lower portion of the first support member 1116a may be spaced apart from the upper surface of the body 1213 of the base 1210.

[0386] In another embodiment, the upper end or upper portion of the second support member 1116b may be spaced apart from the upper surface of the second pillar 1216b. The lower end or lower portion of the second support member 1116b may be spaced apart from the upper surface of the body 1213 of the base 1210.

[0387] The base 1210 may include a first mounting recess 41 and a second mounting recess 42 formed in the first pillar 1216a, the second pillar 1216b, and the body 1213.

[0388] Each of the first mounting recess 1041 and the second mounting recess 1042 may have a stepped structure or a two-stage structure based on the outer surfaces of the first pillar 1216a and the second pillar 1216b of the base 1210.

[0389] The first mounting recess 1041 may be formed in the outer surfaces of the first pillar 1216a and the second and 1216b and the outer surface of the first side portion 1218a of the body 1213, and may have a shape that is the same as or conforms to the shape of the circuit board 1190.

[0390] The second mounting recess 1042 may be located in the first mounting recess 1041 and may be formed in the outer surfaces of the first support 1216a and the second support 1216b, as well as the outer surface of the first side portion 1218a. The second mounting recess 1042 may have a shape that is the same as or conforms to the shape of the magnetic body 1195.

[0391] Next, circuit board 1190 will be described.

[0392] The circuit board 1190 may be disposed at or fixed to the base 1210. For example, the circuit board 1190 may be fixed to the first post 1216a and the second post 1216b of the base 1210. Alternatively, the circuit board 1190 may be disposed at or fixed to the first post 1216a and the second post 1216b and the first side 1218a of the body 1213.

[0393] For example, circuit board 1190 may be disposed in first mounting recess 1041.

[0394] The circuit board 1190 may include terminals that are electrically connected to the coil. The terminals of the circuit board may include a first terminal 1091 and a second circuit board 1092. The terminals of the circuit board 1190 may be disposed at the body 1213.

[0395] For example, circuit board 1190 can be a printed circuit board or a flexible printed circuit board.

[0396] Next, coil 1120 will be described.

[0397] The coil 1120 can be disposed, mounted, or fixed to the circuit board 1190 such that it corresponds to or faces the magnet 1130. For example, the coil 1120 can be disposed on a first surface of the circuit board 1190, and terminals 1091 and 1092 can be disposed on a second surface of the circuit board 1190.

[0398] The first surface of the circuit board 1190 may be the surface facing the magnet 1130, and the second surface of the circuit board 1190 may be the surface opposite to the first surface of the circuit board 1190.

[0399] Although adhesive components may be used to secure or attach the coil 1120 to the circuit board 1190, this disclosure is not limited thereto.

[0400] The coil 1120 can be located between the first post 1216a and the second post 1216b of the base 1210.

[0401] For example, coil 1120 can be a toroidal coil loop. For example, coil 1120 can have a toroidal shape in which its horizontal length is greater than its vertical length.

[0402] In order to generate the electromagnetic force caused by the electromagnetic interaction with the magnet 1130, the driving signal applied to the coil 1120 can be a DC signal, and can be of voltage or current type. For example, the driving signal applied to the coil 1120 can include at least one of a DC signal and an AC signal.

[0403] The coil 1120, to which a drive signal is applied, can interact electromagnetically with the magnet 1130 located at the line cylinder 1110, and the AF action unit can move along a first direction by the electromagnetic force generated by the electromagnetic interaction between the coil 1120 and the magnet 1130.

[0404] By controlling the strength of the drive signal, the movement of the AF action unit in the first direction can be controlled, thus enabling the autofocus function to be executed.

[0405] The AF actuation unit may include a spool 1110 and components mounted on and moving with the spool 1110. For example, the AF actuation unit may include the spool 1110 and a magnet 1130.

[0406] The coil 1120 can be electrically connected to the first terminal 1091 and the second terminal 1092 of the circuit board 1190. For example, the two ends of the coil 1190 can be electrically connected to pads (not shown) disposed on the first surface, and the pads (not shown) can be electrically connected to a corresponding one of the first terminal 1091 and the second terminal 1092 of the circuit board 1190.

[0407] The drive signal can be applied to the coil 1120 via the first terminal 1091 and the second terminal 1092.

[0408] Figure 24 This is a top view of the lens moving device 1100, from which the cover member 1300 has been removed. Figure 25 yes Figure 24 The cross-sectional view of the lens moving device 110 shown along line AB. Figure 26 yes Figure 24 The image shows a cross-sectional view taken along line CD of the lens moving device 1100.

[0409] Reference Figure 24The center 1007a of the opening 1101 in the spool 1110 may not be aligned with the center 1007b of the base 1210, or may not coincide with the center 1007b of the base 1210.

[0410] For example, the center 1007a of the opening 1101 in the spool 1110 may be located further away from the magnet 1130 than the center 1007b of the base 1210. For example, the center of the lens mounted on the spool 1110 may be located further away from the magnet 1130 than the center 1007b of the base 1210.

[0411] For example, the center 1007b of the base 1210 can be located between the center 1007a of the opening 1101 in the spool 1110 and the magnet 1130.

[0412] The protrusions 1118a to 1118d of the spool 1110 can be located between the supports 1216a to 1216d of the base 1210.

[0413] For example, each of the protrusions 1118a to 1118d of the spool 1110 can be located between two adjacent supports 1216a and 1216b, 1216b and 1216c, 1216c and 1216d, and 1216d and 1216a. Because the protrusions 1118a to 1118d of the spool 1110 are positioned in the space between supports 1216a and 1216b, 1216b and 1216c, 1216c and 1216d, and 1216d and 1216a, the size of the lens moving device 1100 can be reduced or minimized.

[0414] Each of rollers P1 to P2 and rollers Q1 to Q3 of the first roller unit 1150 and the second roller unit 1160 can contact the side surfaces 1051 of the first groove 1051a and the second groove 1051b. For example, the outer surface of each of rollers P1 to P2 and rollers Q1 to Q3 can make surface contact with the side surfaces 1051 of the first groove 1051a and the second groove 1051b.

[0415] In another embodiment, the side surfaces 1051 of the first groove 1051a and the second groove 1051b may be provided with a plurality of protrusions. The plurality of protrusions may contact the outer surfaces of rollers P1 to P3 and rollers Q1 to Q3.

[0416] Figures 30a to 30c This is a partial perspective view of another embodiment 1110A of the spool 1110.

[0417] Reference Figures 30a to 30cThe side surface 1051 of the first groove 1051a in the spool 1110A may be provided with a plurality of protrusions 1014a to 1014c or 1014d corresponding to rollers P1 to P3.

[0418] exist Figure 30a In the first groove 1051a, protrusions 1014a, 1014a and 1014c may be provided on the first side surface 1051-1 and the second side surface 1051-2 of the first groove 1051a.

[0419] exist Figure 30b In the middle, protrusions 1014a, 1014b and 1014c can be provided on the first side surface to the third side surface 1051-1, 1051-2 and 1051-3 of the first groove 1051a.

[0420] exist Figure 30a and Figure 30b In the middle, each of the protrusions 1014a, 1014b and 1014c may be hemispherical or dome-shaped.

[0421] exist Figure 30c In this process, each protrusion 1014d may have a linear protrusion shape, and its cross-section may have a semi-circular or arc-shaped shape.

[0422] The outer or side surface of each of rollers P1 to P3 and rollers Q1 to Q3 may contact the plurality of protrusions 1014a to 1014d, but may be spaced apart from the first to third side surfaces 1051-1, 1051-2 and 1051-3.

[0423] The side surface 1051 of the second groove 1051b of the spool 1110A may be provided with a plurality of protrusions corresponding to rollers Q1 to Q3. Regarding Figures 30a to 30c The description of the protrusions 1014a to 1014d provided at the side surface 1051 of the first groove 1051b in the illustrated spool 1110A also applies to the second groove 1051b in the spool 1110A.

[0424] exist Figures 30a to 30c In this process, since rollers P1 to P3 and rollers Q1 to Q3 can make point contact or line contact with protrusions 1014a to 1014d, the frictional force between the spool 1110 and the rollers is relatively small. Figures 30a to 30c The friction between the spool 1110A shown and rollers P1, P2 and P3 can be reduced.

[0425] Reference Figure 25 At the initial position of the AF action unit (e.g., spool 1110), the coil 1120 may overlap with the magnet 1130 in the direction from the first post 1216a toward the fourth post 1216d.

[0426] Here, the initial position of the AF operating unit, such as the drum 1110, can be the original position of the AF operating unit when no power is applied to the coil 1120. Alternatively, the initial position of the AF operating unit can be the position of the AF operating unit when gravity acts in the direction from the drum 1110 to the base 1210 or when gravity acts in the direction from the base 1210 to the drum 1110.

[0427] For example, in the direction from the first pillar 1216a toward the fourth pillar 1216d, the upper part 1120-1 of the coil 1120 may overlap with the first magnet part 1031 of the magnet 1130, the lower part 1120-2 of the coil 1120 may overlap with the second magnet part 1032 of the magnet 1130, and the space between the upper part 1120-1 and the lower part 1120-2 of the coil 1120 may overlap with the non-magnetic partition 1033 of the magnet 1130.

[0428] Figure 27 yes Figure 24 A magnified view of a portion of the image. Figure 27 The description can also be applied to the second roller unit 1160 and the second support member 1116b of the second column 1216b.

[0429] Reference Figure 24 and Figure 27 The rollers P1 to P3 of the first roller unit 1150 can be set to be inclined at a first angle θ11 relative to the first reference line 1501.

[0430] Furthermore, the rollers Q1 to Q3 of the second roller unit 1160 can be configured to be tilted at a second angle relative to the first reference line.

[0431] Here, the first reference line 1501 can be an imaginary line (e.g., the x-axis) parallel to the direction from the first support 1216a toward the second support 1216b. For example, the first reference line 1501 can extend through the point where the rollers (e.g., P1, P2, and P3) of the first roller unit 1150 meet the first support 1116a of the base 1210. Alternatively, the first reference line can extend through the point where the rollers (e.g., Q1, Q2, and Q3) of the second roller unit 1160 meet the second support 1116b of the base 1210.

[0432] For example, the central axis 601 of the roller (e.g., P1) of the first roller unit 1150 (see...) Figure 6 The roller of the second roller unit 1160 (e.g., Q1) can be tilted at a first angle (θ11) relative to the first reference line 1501. In addition, the central axis of the roller of the second roller unit 1160 (e.g., Q1) can be tilted at a second angle relative to the first reference line.

[0433] For example, the first angle θ11 can be the central axis 601 of the roller (e.g., P1) of the first roller unit 1150 (see...). Figure 4 The second angle can be the angle between the roller of the second roller unit 1160 (e.g., Q1) and the first reference line 1501, and the second angle can be the angle between the roller of the second roller unit 1160 (e.g., Q1) and the first reference line.

[0434] For example, the first angle θ11 can be the angle at which the central axis 601 of the roller (e.g., P1) of the first roller unit 1150 rotates clockwise relative to the first reference line 1501.

[0435] In addition, the second angle can be the angle at which the central axis of the roller (e.g., Q1) of the second roller unit 1160 rotates clockwise relative to the first reference line.

[0436] For example, the central axis 601 of a roller (e.g., P1) can be an axis extending 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) can be the diameter center of the roller. The description of the central axis 601 of the rollers (e.g., P1, P2, and P3) of the first roller unit 1150 can be applied to the central axis of the rollers (e.g., Q1, Q2, and Q3) of the second roller unit 1160.

[0437] Each of the rollers (e.g., P1, P2, and P3) of the first roller unit 1150 can be configured such that the central axis 601 is perpendicular to the optical axis OA and can rotate about the optical axis.

[0438] Each of the rollers (e.g., Q1, Q2, and Q3) of the second roller unit 1160 can be configured such that the central axis is set perpendicular to the optical axis OA and can rotate about the optical axis.

[0439] The first angle θ11 and the second angle can be different from each other.

[0440] For example, the first angle θ11 can be 30° to 60°, and the second angle can be 120° to 150°. For example, the second angle can be a value obtained by subtracting the first angle θ11 from 180°.

[0441] For example, the first angle θ11 can be 40°~50°.

[0442] For example, the first angle θ11 can be 43°~47°.

[0443] For example, the first angle θ11 can be 45°.

[0444] When the first angle θ11 is less than 40°, the effect of suppressing the movement of the bobbin 1110 in the x-axis direction may decrease. When the first angle θ11 is less than 40°, the effect of suppressing the movement of the bobbin 1110 in the x-axis direction may decrease. When the first angle θ11 is greater than 60°, the effect of suppressing the movement of the bobbin 1110 in the y-axis direction may decrease.

[0445] Since rollers P1 to P3 of the first roller unit 1150 are configured to be inclined at a first angle θ11 relative to the first reference line 1501, and rollers Q1 to Q3 of the second roller unit 1160 are configured to be inclined at a second angle relative to the first reference line, movement of the bobbin 1110 in a direction parallel to the first reference line 1501 (e.g., in the x-axis direction) or in a direction parallel to the second reference line 1502 (e.g., in the y-axis direction) can be suppressed. For example, the second reference line 1502 may be an imaginary line perpendicular to the first reference line 1501.

[0446] For example, when the first angle θ11 is 45° and the second angle is 135°, the rollers P1 to P3 of the first roller unit 1150 and the rollers Q1, Q2 and Q3 of the second roller unit 1160 can suppress the movement of the bobbin 1110 in the x-axis and y-axis directions in a balanced manner.

[0447] For example, the centerline 1503 of the first support member 1116a of the base 1210 and the center axis 601 of the rollers (e.g., P1, P2 and P3) of the first roller unit 1150 can be perpendicular to each other, and the centerline of the second support member 1116b of the base 1210 and the center axis of the rollers (e.g., Q1, Q2 and Q3) of the second roller unit 1160 can be perpendicular to each other; however, this disclosure is not limited thereto.

[0448] The centerline 1503 of the first support member 1116a may be a line that extends through the point where the first support member contacts the roller (e.g., P1, P2, or P3) and divides the first support member 1116a into two parts. For example, the centerline 1503 of the first support member 1116a may be a line that divides the first support member 1116a into two symmetrical parts.

[0449] Furthermore, the centerline of the second support 1116b can be a line that extends through the point where the second support contacts the roller (e.g., Q1, Q2, or Q3) and divides the second support 1116b into two parts. For example, the centerline of the second support 1116b can be a line that divides the second support 1116b into two symmetrical parts.

[0450] exist Figure 27 The description of the arrangement of rollers P1 to P3 of the first roller unit 1150 can also be applied to the arrangement of rollers Q1 to Q3 of the second roller unit 1160.

[0451] Reference Figure 24 The first roller unit 1150 and the second roller unit 1160 may be parallel to the direction from the first post 1216a toward the fourth post 1216d, and may be relative to the centerline 1701 extending through the center of the opening 1101 in the bobbin 1110 (see...). Figure 24 Symmetrical setup.

[0452] Next, the magnetic body 1195 will be described.

[0453] The magnetic body 1195 can be disposed at the base 1210 and can be located below the coil 1120. An attractive force can act between the magnetic body 1195 and the magnet 1130.

[0454] For example, the magnetic body 1195 may be positioned lower than the magnet 1130 based on the lower surface of the base 1210, and may be used to suppress tilting of the spool 1110 during its movement. The magnetic body 1195 may also be referred to as a "tilt suppressor," "tilt compensator," or "tilt controller" because the magnetic body suppresses the occurrence of tilting of the spool 1110.

[0455] In the lens moving device 1100 according to the embodiment, since the magnet 1130 is only provided on one side surface 1110b-1 of the spool 1110 and only one coil 1120 is provided to correspond to one magnet 1130, an imbalance of electromagnetic forces may occur between the side surface (e.g., 1110b-1) of the spool 1110 on which the magnet 1130 is provided and its opposite side surface 1110b-3.

[0456] Due to the imbalance of electromagnetic forces, the spool 1110 may tilt during its movement. However, since the magnetic body 1195 is made of a material attracted by the magnet 1130, the tilting of the spool can be suppressed.

[0457] The magnetic body 1195 may be made of a material that is attracted by a magnet, such as a magnetic material (e.g., a material that exhibits magnetism).

[0458] In another embodiment, the magnetic body 1195 may be made of a material attracted by the magnet, such as a metallic material (e.g., iron).

[0459] The magnetic body 1195 can be disposed on the outer surface of the base 1210.

[0460] For example, the magnetic body 1195 may be disposed on the outer surfaces of the first pillar 1216a and the second pillar 1216b, as well as on the outer surface of the first side portion 1218a of the main body 1213 of the base 1210. For example, the magnetic body 1195 may be disposed in the second mounting recess 1042.

[0461] The magnetic body 1195 can be plate-shaped.

[0462] For example, the magnetic body 1195 may include: a plate 1195-1 disposed on the outer surface of the body 1213; a first extension 1195-2 disposed on the outer surface of the first support column 1216a and extending upward from one end of the plate 1195-1; and a second extension 1195-3 disposed on the outer surface of the second support column 1216b and extending upward from the other end of the plate 1195-1.

[0463] The plate 1195-1 of the magnetic body 1195 can be disposed on the outer surface of the first side portion 1218a of the main body 1213 of the base 1210. For example, the magnetic body 1195 can be fixed or attached to the base 1210 using an adhesive member.

[0464] The first extension 1195-2 may be disposed on the side surface (e.g., the outer surface) of the first pillar 1216a and may extend in a direction from the lower surface of the base 1210 toward the upper surface.

[0465] The second extension 1195-3 may be disposed on the side surface (e.g., the outer surface) of the second pillar 1216b and may extend in a direction from the lower surface of the base 1210 toward the upper surface.

[0466] The first extension 1195-2 and the second extension 1195-3 can increase the bonding force between the magnet 1195 and the base 1210.

[0467] To increase the force acting between magnet 1130 and magnetic body 1195, the horizontal length L1 of plate 1195-1 of magnetic body 1195 (see...) Figure 1 It can be greater than the horizontal length L2 of the magnet 1130 (see...) Figure 20 However, this disclosure is not limited thereto. In another embodiment, L1 may be equal to L2.

[0468] Because the attraction acts between the magnet 1195 and the magnet 1130, the initial position of the spool 1110 can be set even without applying a driving signal to the coil 1120.

[0469] For example, when no drive signal is applied to coil 1120, the force acting between magnet 1195 and magnet 1130 can position the spool 1110 at its lowest position. Here, the lowest position of the spool 1110 can be the lowest position from the base 210 within the displacement range of the spool 1110. Here, the lowest position of the spool 1110 can also be the initial position of the spool 1110.

[0470] For example, when no drive signal is applied to coil 1120, the force acting between magnet 1195 and magnet 1140 can be equal to or greater than the force required to set spool 1110 at its lowest position.

[0471] Since the initial position of the spool 1110 can be set by the attraction force between the magnet 1195 and the magnet 1130, accurate AF operation can be performed even without an additional position sensor.

[0472] Since the center of the spool 1110 is not aligned with the center of the base and only one magnet 1130 is used, the embodiment is able to reduce the number of parts.

[0473] Because the embodiment includes a roller instead of a spring, it is able to reduce the amount of current consumed during AF operation compared to lens moving devices that use springs. Furthermore, the reduced stabilization time allows for an increase in the speed of AF operation.

[0474] Since the magnets 1195 and 1130 are located on one side 1218a of the main body 1213 of the base 1210, the embodiment is able to perform tilt compensation and drive action simultaneously.

[0475] Since the rollers P1 to P3 of the first roller unit 1150 are inclined at a first angle relative to the first reference line 1501, and the rollers Q1 to Q3 of the second roller unit 1160 are inclined at a second angle relative to the first reference line, the embodiment is able to suppress the movement of the bobbin 1110 in the x-axis and y-axis directions.

[0476] although Figures 19 to 27 The embodiments shown do not include a position sensor, but this disclosure is not limited thereto. A lens-mounted mobile device according to another embodiment may include a position sensor.

[0477] Figure 28 Position sensor 1170 is shown, which is additionally disposed at lens moving device 1100. Figure 29 It shows including Figure 28 A cross-sectional view of an embodiment of the position sensor 1170 shown.

[0478] Reference Figure 28 and Figure 29 The position sensor 1170 can be set or mounted on the circuit board 1190 and can be located in the space formed at the center of the coil 1120.

[0479] For example, the position sensor 1170 may be located in the space between the upper part 1120-1 and the lower part 1120-2 of the coil 1120.

[0480] For example, the position sensor 1170 may overlap with the non-magnetic partition 1033 of the magnet 1130 in the direction from the first pillar 1216a toward the fourth pillar 1216d.

[0481] The position sensor 1170 can detect the strength of the magnetic field of the magnet 1130 mounted on the bobbin 1110 based on the movement of the bobbin 1110, and can output an output signal corresponding to the detected strength. The position sensor 1170 can be disposed on the first surface of the circuit board 1190. Here, the first surface of the circuit board 1190 can be the surface on which the coil 1120 is disposed.

[0482] The position sensor 1170 can be implemented as a driver IC type sensor including a Hall sensor, or it can be implemented as a single position detection sensor such as a Hall sensor.

[0483] For example, when the position sensor 1170 is implemented using only one Hall sensor, the position sensor 1170 may include two input terminals and two output terminals.

[0484] Circuit board 1190 can be electrically connected to position sensor 1170.

[0485] For example, the four terminals of position sensor 1170 can be electrically connected to circuit board 1190.

[0486] The circuit board 1190 may include a plurality of terminals 91-1 to 91-6, and a portion of the terminals may be electrically connected to the four terminals of the position sensor 1170.

[0487] For example, circuit board 1190 may include two terminals (e.g., 91-1 and 91-2) electrically connected to coil 1120, and four terminals (e.g., 91-3 to 91-6) electrically connected to position sensor 1170.

[0488] When the position sensor 1170 is a drive IC type sensor including a Hall sensor, the circuit board 1190 may include four terminals electrically connected to the position sensor 1170, since a drive signal is applied from the position sensor 1170 to the coil 1120.

[0489] Since the embodiment is configured such that the first roller unit 1150 and the second roller unit 1160 are located at the spool 1110, the amount of available space in the base 1210 can be increased, and thus facilitates achieving the desired lengths of the magnet 1130 and the coil 1120.

[0490] Furthermore, when the position sensor 1170 is implemented by a position sensor and a driver integrally formed therewith, sufficient space can be ensured to allow the position sensor and the driver to be installed therein.

[0491] Figure 31 This is a perspective view of a lens moving device 2000 according to yet another embodiment. Figure 32 yes Figure 31 The image shows an exploded perspective view of the lens moving device 2000. Figure 33 yes Figure 31 A sectional view taken along line A-A' of the lens moving device 2000. Figure 34 yes Figure 31 A cross-sectional view taken along line B-B' of the lens moving device 2000. Figure 35 yes Figure 32 The figure shows a perspective view of the housing 2200, coil 2300, roller 2400, shielding member 2500 and base 2600. Figure 36 yes Figure 32 The figure shows a perspective view of the housing 2200, coil 2300, roller 2400 and terminal 2600. Figure 37 yes Figure 32 The image shows a perspective view of the spool 2700. Figure 38 yes Figure 32 A perspective view of the spool 2700, the first magnet 2810, and the second magnet 2820 shown. Figure 39 It is shown Figure 32 The image shows a top view of a lens moving device 2000, in which roller 2400 contacts the base B of housing 2200.

[0492] In the lens moving device 2000 according to the embodiment, the lens module 2010 mounted on the tube 2700 moves vertically (or along the optical axis) together with the tube 2700 to perform an autofocus function.

[0493] The lens moving device 2000 may include a cover 2100, a housing 2200, a roller 2400, a shielding member 2500, a terminal 2600, a spool 2700, and a magnet 2800.

[0494] Cover 2100 may be an external component of lens moving device 2000.

[0495] The lid 2100 may include a metallic material. The lid 2100 can prevent the introduction of electromagnetic waves from its outside into its interior or the radiation of electromagnetic waves from its interior to its outside. Therefore, the lid 2100 may be referred to as a "shielding can". However, the material of the lid 2100 is not limited to this. In one example, the lid 2100 may include a plastic material.

[0496] The cover 2100 may include a top plate 2110 and a side plate 2120. The top plate 2110 and the side plate 2120 of the cover 2100 may be integrally formed.

[0497] The top plate 2110 of the cover 2100 can be configured as a square plate with rounded corners. A hole 2111 can be formed in the center of the top plate 2110 of the cover 2100 to be aligned with the optical axis.

[0498] The side panels 2120 of the cover 2100 can extend downward from the periphery of the top plate 2110. The number of side panels 2120 of the cover 2100 can be multiple.

[0499] The side panel 2120 of the cover 2100 may include: a first side panel extending downward from a first side of the top panel 2110; a second side panel extending downward from a second side of the top panel 2110; a third side panel extending downward from a third side of the top panel 2110; and a fourth side panel extending downward from a fourth side of the top panel 2110.

[0500] In other words, the cover 2100 can be configured to have a rectangular parallelepiped shape with rounded corners, a hole formed in its upper surface, and an open lower surface. The lower opening in the cover 2100 can be closed by the base B of the housing 2200. When the cover 2100 is coupled to the housing 2200, the lower surface of the side plate 2120 of the cover 2100 can contact (face) the upper surface of the base B of the housing 2200. Adhesive is applied (set) to the contact area where the lower surface of the side plate 2120 of the cover 2100 contacts the upper surface of the base B of the housing 2200, or to the area between the lower surface of the side plate 2120 of the cover 2100 and the upper surface of the base B.

[0501] The internal space defined between the cover 2100 and the base B of the housing 2200 can accommodate the rest of the housing 2200, the coil 2300, the roller 2400, the shielding member 2500, the terminal 2600, the spool 2700 and the magnet 2800.

[0502] Among the multiple side plates 2120 of the cover 2100, a terminal exposure portion 2121 is provided in the side plate facing the coil 2300. The terminal exposure portion 2121 can be formed upward from the lower end of the side plate facing the coil 2300 among the multiple side plates 2120.

[0503] The first second terminal portion 2612 and the second second terminal portion 2622 of terminal 2600 can be exposed to the outside through the terminal exposure portion 2221.

[0504] The housing 2200 can be disposed inside the cover 2100. The housing 2200 can be disposed below the cover 2100. The spool 2700 can be disposed within the housing 2200.

[0505] The coil 2300, roller 2400, shielding member 2500, and terminal 2600 may be disposed within the housing 2200. The housing 2200 may comprise a plastic material. The housing 2200 may be an injection-molded plastic product.

[0506] The housing 2200 may include: a base B, a first pillar C1, a second pillar C2, a third pillar C3, a fourth pillar C4, a first connector 2210, a second connector 2220, a first sidewall 2230, a second sidewall 2240, a third sidewall 2250, a first retainer 2211, a second retainer 2212, a terminal receiving portion 2221, a first stop 2231, a second stop 2251, a first shielding wall 2241, a second shielding wall 2242, a support member 2243, a first step portion 2244, a second step portion 2245, a first contact 2246, and a second contact 2247.

[0507] The base B of the housing 2200 can be disposed below the cover 2100. The base B of the housing 2200 can be coupled to the cover 2100. The base B of the housing 2200 can support the cover 2100. Here, the lower surfaces of multiple side plates of the cover 2100 can contact the upper surface of the base B. The base B of the housing 2200 can have an approximate form of a square plate.

[0508] The first support column C1, the second support column C2, the third support column C3, and the fourth support column C4 of the housing 2200 can be respectively located at the four corners of the base B. The first support column C1, the second support column C2, the third support column C3, and the fourth support column C4 of the housing 2200 can protrude upwards from the base B. The first support column C1, the second support column C2, the third support column C3, and the fourth support column C4 of the housing 2200 can be spaced apart from each other. The positions of the first support column C1, the second support column C2, the third support column C3, and the fourth support column C4 of the housing 2200 can be arranged to correspond to each of the four corners of the base B.

[0509] The first support C1 of the housing 2200 may be provided with an outwardly protruding first retainer 2211. The second support C2 of the housing 2200 may be provided with an outwardly protruding second retainer 2212.

[0510] The first retainer 2211 and the second retainer 2212 of the housing 2200 can be disposed in the space defined between the first coil portion 2310, the second coil portion 2320, the third coil portion 2330 and the fourth coil portion 2340 of the coil 2300 to fix the coil 2300.

[0511] The first connector 2210 and the second connector 2220 of the housing 2200 can be located between the first post C1 and the second post C2. The first connector 2210 and the second connector 2220 of the housing 2200 can connect the first post C1 to the second post C2.

[0512] The first connector 2210 of the housing 2200 may be located above the second connector 2220. The second connector 2220 of the housing 2200 may be located below the first connector 2210.

[0513] The first connector 2210 of housing 2200 connects the upper end of the first pillar C1 to the upper end of the second pillar C2. The second connector 2220 of housing 2200 connects the lower end of the first pillar C1 to the lower end of the second pillar C2. The first connector 2210 and the second connector 2220 can be located outside the first pillar C1 and the second pillar C2. In other words, the first connector 2210 and the second connector 2220 of housing 2200 can connect the outer surface of the first pillar C1 to the outer surface of the second pillar C2.

[0514] The coil 2300 can be located between the first connector 2210 and the second connector 2220 of the housing 2200. The lower surface of the first connector 2210 of the housing 2200 can contact the upper surface of the first coil portion 2310. Adhesive can be applied to the contact area where the first connector 2210 of the housing 2200 contacts the coil 2300.

[0515] Terminal 2600 may be disposed between the second connector 2220 and the coil 2300 of housing 2200. First terminal portion 2611 and second terminal portion 2621 may be disposed between the upper surface of the second connector 2220 and the lower surface of the second coil portion 2320 of housing 2200.

[0516] Terminal receiving portion 2221 may be formed at the center of the second connector 2220 of housing 2200. Terminal receiving portion 2221 may be formed inward from the outer surface of the second connector 2220. The position of terminal receiving portion 2221 may be configured to directly face the terminal exposure portion in cover 2100. Terminal receiving portion 2221 may allow the lower end of base B to extend from the second connector 2220 of housing 2200.

[0517] The first and second terminal portions 2612 and the second first terminal portion 2622 can be disposed in the terminal receiving portion 2221 in the housing 2200. Here, the inner surfaces of the first and second terminal portions 2612 and the second first terminal portion 2622 can face the terminal receiving portion 2221 and can contact the terminal receiving portion 2221. The outer surfaces of the first and second terminal portions 2612 and the second first terminal portion 2622 can be exposed to the outside through the terminal exposure portion 2121 in the cover 2100.

[0518] The first sidewall 2230 of the housing 2200 may be located between the second support C2 and the third support C3. The first sidewall 2230 of the housing 2200 may connect the second support C2 to the third support C3. The first sidewall 2230 of the housing 2200 may face the third sidewall 270, wherein the spool 2700 is disposed between the first sidewall 2230 and the third sidewall 270. The first sidewall 2230 of the housing 2200 may have an inwardly protruding first stop 2231 at its center.

[0519] The first stop 2231 of the housing 2200 may face the second stop 2251, wherein the spool 2700 is disposed between the first stop 2231 and the second stop 2251. The first stop 2231 of the housing 2200 may be in the form of a vertically extending semi-cylindrical shape. In other words, the inner surface of the first stop 2231 of the housing 2200 may be provided with curvature. The horizontal cross-section of the first stop 2231 may have a semi-circular shape.

[0520] The first stop 2231 of the housing 2200 can be accommodated in the first groove 2720 in the spool 2700. The first stop 2231 of the housing 2200 can have a shape corresponding to the first groove 2720 in the spool 2700. The first stop 2231 of the housing 2200 can be spaced apart from the spool 2700 by a predetermined distance. When the spool 2700 tilts, the first stop 2231 of the housing 2200 can contact the spool 2700, thereby preventing the spool 2700 from tilting.

[0521] The second sidewall 2240 of housing 220 can be located between the third support C3 and the fourth support C4. The second sidewall 2240 of housing 2200 can connect the third support C3 to the fourth support C4. The second sidewall 2240 of housing 2200 can face the first connector 2210 and the second connector 2220, wherein the bobbin 2700 is disposed between the second sidewall 2240 of housing 2200 and the first connector 2210 and the second connector 2220. A roller 2400 can be provided on the inner surface of the second sidewall 2240 of housing 2200.

[0522] The shielding member 2500 can be installed on the second side wall 2240.

[0523] A third magnet 2830 may be provided on the outer surface of the second sidewall 2240 of the housing 2200.

[0524] The third pillar C3 of the housing 2200 may be provided with a first shielding wall 2241, which protrudes from the third pillar C3 toward the fourth pillar C4. The first shielding wall 2241 may be located inside the second side wall 2240. The first shielding wall 2241 may be spaced apart from the second side wall 2240 of the housing 2200.

[0525] One end of roller 2400 can be located between the first shielding wall 2241 and the second side wall 2240 of housing 2200. The outer surface of the first shielding wall 2241 can contact roller 2400. Figure 39 As shown in (1), the outer surface of the first shielding wall 2241 can be flat. As a result, the outer surface of the first shielding wall 2241 and the roller 2400 can be in line contact with each other at the same height (in the vertical section). Alternatively, as... Figure 29 As shown in (2), the outer surface of the first shielding wall 2241 can protrude toward the roller 2400. As a result, the outer surface of the first shielding wall 2241 and the roller 2400 can make point contact with each other at the same height (in the vertical section).

[0526] The fourth support C4 of the housing 2200 may be provided with a second shielding wall 2242, which protrudes from the fourth support C4 toward the third support C3. The second shielding wall 2242 may be located inside the second side wall 2240. The second shielding wall 2242 of the housing 2200 may be spaced apart from the second side wall 2240. The other end of the roller 2400 may be located between the second shielding wall 2242 and the second side wall 2240 of the housing 2200. The outer surface of the second shielding wall 2242 may contact the roller 2400. Figure 39 As shown in (1), the outer surface of the second shielding wall 2242 can be flat. As a result, the outer surface of the second shielding wall 2242 and the roller 2400 can be in line contact with each other at the same height (in the vertical section).

[0527] Or, such as Figure 39 As shown in (2), the outer surface of the second shielding wall 2242 can protrude toward the roller 2400. As a result, the outer surface of the second shielding wall 2242 and the roller 2400 can make point contact with each other at the same height (in the vertical section).

[0528] The base B of the housing 2200 may be provided with an upwardly protruding support member 2243. The support member 2243 may be located inside the second side wall 2240 of the housing 2200.

[0529] Support member 2243 may be located below roller 2400. The upper surface of support member 2243 may contact roller 2400 to support roller 2400. The upper surface of support member 2243 may contact first roller 2410 to support first roller 2410.

[0530] The upper surface of the third support C3 of the housing 2200 may be provided with a downwardly recessed first step portion 2244. The first step portion 2244 may be located between the second side wall 2240 and the first shielding wall 2241.

[0531] The upper surface of the fourth support C4 of the housing 2200 may be provided with a downwardly recessed second step portion 2245. The second step portion 2245 may be located between the second side wall 2240 and the second shielding wall 2242 of the housing 2200.

[0532] The shielding member 2500 can be disposed on the first step portion 2244 and the second step portion 2245 of the housing 2200. Here, the first shielding portion 2510 of the shielding member 2500 can be disposed on the first step portion 2244. The second shielding portion 2520 of the shielding member 2500 can be disposed on the second step portion 2245.

[0533] The second sidewall 2240 of the housing 2200 may be provided with a first contact 2246, which protrudes from the inner surface of the second sidewall 2240 toward one end of the roller 2400. The first contact 2246 can contact the roller 2400. The first contact 2246 can extend vertically. Figure 39 As shown in (1), the outer surface of the first contact 2246 can be flat. As a result, the outer surface of the first contact 2246 and the roller 2400 can contact each other at the same height (in the vertical section).

[0534] Or, such as Figure 39 As shown in (2), the outer surface of the first contact 2246 may protrude toward one end of the roller 2400. In other words, the first contact 2246 may have a semi-cylindrical shape. As a result, the outer surface of the first contact 2246 and the roller 2400 may make point contact with each other at the same height (in the vertical section).

[0535] The second sidewall 2240 of the housing 2200 may be provided with a second contact 2247, which protrudes from the inner surface of the second sidewall 2240 toward the other end of the roller 2400. The second contact 2247 may contact the roller 2400.

[0536] The second contact 2247 can protrude vertically. For example... Figure 39As shown in (1), the outer surface of the second contact 2247 can be flat. As a result, the outer surface of the second contact 2247 and the roller 2400 can make line contact with each other at the same height (in the vertical section). Alternatively, as... Figure 39 As shown in (2), the outer surface of the second contact 2247 may protrude toward the other end of the roller 2400. In other words, the second contact 2247 may have a semi-cylindrical shape. As a result, the outer surface of the second contact 2247 and the roller 2400 may make point contact with each other at the same height (in the vertical section).

[0537] The third sidewall 2250 of housing 2200 may be located between the fourth support C4 and the first support C1. The third sidewall 2250 of housing 2200 may connect the fourth support C4 to the first support C1. The third sidewall 2250 of housing 2200 may face the first sidewall 2230, with the spool 2700 disposed between the third sidewall 2250 and the first sidewall 2230. The third sidewall 2250 of housing 2200 may have an inwardly protruding second stop 2251 at its center.

[0538] The second stop 2251 may face the first stop 2231, wherein the spool 2700 is disposed between the second stop 2251 and the first stop 2231. The second stop 2251 may have a vertically extending semi-cylindrical shape. In other words, the inner surface of the second stop 2251 may be curved. The horizontal cross-section of the second stop 2251 may have a semi-circular shape.

[0539] The second stop 2251 of the housing 220 can be accommodated in the second groove 2730 in the spool 2700. The second stop 2251 of the housing 2200 can have a shape corresponding to the shape of the second groove 2730 in the spool 2700. The second stop 2251 of the housing 2200 can be spaced apart from the spool 2700 by a predetermined distance. When the spool 2700 tilts, the second stop 2251 of the housing 2200 can contact the spool 2700, thereby preventing the spool 2700 from tilting.

[0540] The coil 2300 may be disposed at the housing 2200. The coil 2300 may be disposed on the outer surface of the first post C1 and the second post C2 of the housing 2200. At least a portion of the coil 2300 may be exposed to the interior of the housing 2200 through an opening defined between the first post C1 and the second post C2.

[0541] The coil 2300 can be configured such that the portion of the coil 2300 exposed inside the housing 2200 directly faces the magnet 2800. The coil 2300 can face the roller 2400, with the spool 2700 disposed between the coil 2300 and the roller 2400. The coil 2300 can be located between the first connector 2210 and the second connector 2220.

[0542] The coil 2300 can be held by a first retainer 2211 and a second retainer 2212 of the housing 2200.

[0543] The coil 2300 can be electrically connected to the terminal 2600. Here, one wire of the coil 2300 can be electrically connected to the first terminal portion 2611 of the first terminal 2610, and the other wire of the coil 2300 can be electrically connected to the second terminal portion 2621 of the second terminal 2620.

[0544] replace Figure 1 and Figure 19 The circuit boards 190 and 1190 shown are shown. Figure 32 and Figure 36 The first terminal 2610 and the second terminal 2620 of the terminal 600 shown can be disposed at the bases 210 and 1210. Here, the application of... Figure 32 and Figure 36 Description of the first first terminal portion 2611 of the first terminal 2610 and the second first terminal portion 2621 of the second terminal 2620 of the terminal 600 shown.

[0545] When current is applied to coil 2300, coil 2300 can electromagnetically interact with the first magnet 2810 of magnet 2800, thereby providing the force required for AF operation to the bobbin 2700. Here, current flows from substrate 2030 (see terminal 2600) to the bobbin 2700. Figure 41 It supplies current to coil 2300. The intensity, wavelength, direction, etc. of the current applied to coil 2300 can be controlled.

[0546] The coil 2300 may include a first coil section 2310, a second coil section 2320, a third coil section 2330, and a fourth coil section 2340.

[0547] The first coil portion 2310 may be located above the second coil portion 2320. The first coil portion 2310 may extend from the outer surface of the first support C1 toward the outer surface of the second support C2.

[0548] The second coil portion 2320 may be located below the first coil portion 2310. The second coil portion 2320 may extend from the outer surface of the second support C2 of the housing 2200 toward the outer surface of the first support C1.

[0549] The third coil section 2330 can connect one end of the first coil section 2310 to one end of the second coil section 2320. The fourth coil section 2340 can connect the other end of the first coil section 2310 to the other end of the second coil section 2320. Therefore, the coil 2300 can have a ring shape.

[0550] Roller 2400 can be disposed at housing 2200. Roller 2400 can be located inside the second sidewall 2240 of housing 2200. Roller 2400 can be located between the third support C3 and the fourth support C4 of housing 2200. Roller 2400 can face coil 2300, wherein spool 2700 is inserted between roller 2400 and coil 2300. Roller 2400 can face third magnet 2830, wherein second sidewall 2240 is disposed between roller 2400 and third magnet 2830.

[0551] Roller 2400 can be disposed between the second magnet 2820 and the third magnet 2830. One end of roller 2400 can be located between the second side wall 2240 and the first shielding wall 2241 of housing 2200. The other end of roller 2400 can be disposed between the second side wall 2240 and the second shielding wall 2242 of housing 2200.

[0552] Roller 2400 may include plastic material. Roller 2400 may be an injection-molded plastic product.

[0553] One end of roller 2400 can contact and be supported by the first contact point 2246 of the second sidewall 2240 of housing 2200. One end of roller 2400 can contact and be supported by the outer surface of the first shielding wall 2241 of housing 2200.

[0554] The other end of roller 2400 can contact and be supported by the second contact 2247 of the second sidewall 2240 of housing 2200. The other end of roller 2400 can contact and be supported by the outer surface of the second shielding wall 2241 of housing 2200. The middle portion of roller 2400 can contact the third contact 2740 and the fourth contact 2750 of spool 2700. Here, roller 2400 can support spool 2700.

[0555] Roller 2400 may have a cylindrical shape. The axis of roller 2400 may extend from the third support C3 of housing 2200 to the fourth support C4. Roller 2400 may have a curved surface configured to rotate about the axis extending from the third support C3 to the fourth support C4 of housing 2200. Roller 2400 may have a curved surface configured circumferentially about the axis extending from the third support C3 to the fourth support C4 of housing 2200. Therefore, roller 2400 is capable not only of guiding spool 2700 in the vertical direction but also of supporting spool 2700 in the horizontal direction when spool 2700 moves vertically (in the up-down direction).

[0556] The support member 2243 of the housing 2200 can be located below the roller 2400. The shielding member 2530 can be located above the roller 2400.

[0557] Roller 2400 may include multiple rollers. In this example, the number of rollers 2400 may be three. Roller 2400 may include a first roller 2410, a second roller 2420, and a third roller 2430 stacked vertically.

[0558] The first roller 2410 can contact and be supported by the support member 2243. The shielding member 2500 can be located above the third roller 2430. Therefore, the shielding member 2500 can prevent the roller 2400 from moving upward and separating from the housing 2200 together with the bobbin 2700.

[0559] The shielding member 2500 can be disposed at the housing 2200. The shielding member 2500 can be disposed above the roller 2400. The shielding member 2500 can be disposed above the roller 2400. The shielding member 2500 can be disposed above the third roller 2430. The lower surface of the shielding member 2500 can face the roller 2400. The shielding member 2500 can be plate-shaped. The shielding member 2500 may include a first shielding portion 2510, a second shielding portion 2520, and a third shielding portion 2530.

[0560] The first shielding portion 2510 of the shielding member 2500 can be disposed on the third support C3 of the housing 2200. The first shielding portion 2510 of the shielding member 2500 can be disposed on the first stepped portion 2244 of the housing 2200. The lower surface of the first shielding portion 2510 of the shielding member 2500 can contact the upper surface of the first stepped portion 2244 of the housing 2200.

[0561] The second shielding portion 2520 of the shielding member 2500 can be disposed on the fourth support C4 of the housing 2200. The second shielding portion 2520 of the shielding member 2500 can be disposed on the second stepped portion 2245 of the housing 2200. The lower surface of the second stepped portion 2520 of the shielding member 2500 can contact the upper surface of the second stepped portion 2245 of the housing 2200.

[0562] The third shielding portion 2530 of the shielding member 2500 can connect the first shielding portion 2510 to the second shielding portion 2520. The third shielding portion 2530 of the shielding member 2500 can be disposed on the second side wall 2240 of the housing 2200. The lower surface of the third shielding portion 2530 of the shielding member 2500 can contact the upper surface of the second side wall 2240 of the housing 2200.

[0563] Terminal 2600 may be disposed at housing 2200. Terminal 2600 may be disposed between second connector 2220 and coil 2300 of housing 2200. Terminal 2600 may be electrically connected to coil 2300. Terminal 2600 may be electrically connected to substrate 2030 of camera module. Terminal 2600 may include conductive material. Terminal 2600 may include magnetic material. Terminal 2600 may include metal.

[0564] Terminal 2600 can be used to supply current to coil 2300.

[0565] Because the terminals are magnetic, an attractive force can act between the terminals 2600 and the first magnet 2810 of the magnet 2800. As a result, the terminals 2600 can prevent the spool 2700 from tilting. In the example, when a vertical driving force is generated in the spool 2700 due to the electromagnetic interaction between the coil 2300 and the first magnet 2810, a torque can be generated at the spool 2700 because the first magnet 2810 is eccentrically positioned on one side of the spool 2700. In this case, since the spool 2700 is correctly positioned by the attractive force acting between the terminals 2600 and the first magnet 2810, tilting of the spool can be prevented.

[0566] Terminal 2600 may include a first terminal 2610 and a second terminal 2620. The first terminal 2610 and the second terminal 2620 may be spaced apart from each other. Here, the first terminal 2610 may be disposed in an unbalanced manner at the first support C1 of the housing 2200, and the second terminal 2620 may be disposed in an unbalanced manner at the second support C2 of the housing 2200.

[0567] The first terminal 2610 may include a first terminal portion 2611 and a first second terminal portion 2612. The first terminal portion 2611 may be plate-shaped and may be located between the coil 2300 and the second connector 2220. The first second terminal portion 2612 may extend downward from the first terminal portion 2611 and may be disposed in the terminal receiving portion 2221.

[0568] The first terminal portion 2611 can be electrically connected to a wire of the coil 2300. The first second terminal portion 2612 can be electrically connected to the substrate 2030 of the camera module 2001.

[0569] The second terminal 2620 may include a second first terminal portion 2621 and a second second terminal portion 2622. The second first terminal portion 2621 may be plate-shaped and may be located between the coil 2300 and the second connector 2220. The second second terminal portion 2622 may extend downward from the second first terminal portion 2621 and may be disposed in the terminal receiving portion 2221. The second first terminal portion 2621 may be electrically connected to another wire of the coil 2300. The second second terminal portion 2622 may be electrically connected to the substrate 2030 of the camera module 2001.

[0570] The spool 2700 may be located inside the housing 2200. The spool 2700 may be in the form of a block with a hole 2710 formed vertically at its center. The lens module 2010 of the camera module 2001 may be mounted in the spool 2700. A magnet 2800 may be disposed at the spool 2700. The spool 2700 may comprise a plastic material. The spool 2700 may be an injection-molded plastic product.

[0571] The spool 2700 can move vertically (in the up-down direction) to perform the AF function through the electromagnetic interaction between the coil 2300 and the first magnet 2810. Here, the spool 2700 can be supported by the roller 2400 and can be guided vertically.

[0572] The spool 2700 may include a hole 2710, a first groove 2720, a second groove 2730, a first contact 2740, a second contact 2750, a magnet receiving portion 2760, and an upper stop 2770.

[0573] A first groove 2720 may be provided on the surface of the spool 2700 corresponding to the first sidewall 2230 of the housing 2200. The first groove 2720 may be formed inward from the outer surface of the spool 2700. The first stop 2231 of the housing 2200 may be accommodated in the first groove 2720.

[0574] A second groove 2730 may be provided on the surface of the spool 2700 corresponding to the third sidewall 2250 of the housing 2200. The second groove 2730 may be formed inward from the outer surface of the spool 2700. The second stop 2251 of the housing 2200 may be accommodated in the second groove 2730.

[0575] The surface of the spool 2700 corresponding to the second sidewall 2240 of the housing 2200 may be provided with a third contact 2740 and a fourth contact 2750.

[0576] The third contact 2740 of the spool 2700 can protrude from the outer surface of the spool 2700 toward the portion between one end and the center of the roller 2400. The third contact 2740 of the spool 2700 can contact the roller 2400.

[0577] The third contact 2740 of the spool 2700 can extend vertically. The outer surface of the third contact 2740 of the spool 2700 can protrude toward the roller 2400. In other words, the third contact 2740 of the spool 2700 can have a semi-cylindrical shape. As a result, the outer surface of the third contact 2740 of the spool 2700 and the roller 2400 can make point contact with each other at the same height (in the vertical section).

[0578] In a variant (not shown), the outer surface of the third contact of the spool 2700 can be flat. As a result, the outer surface of the third contact of the spool 2700 and the roller 2400 can make line contact with each other at the same height (in the vertical direction).

[0579] The fourth contact 2750 of the spool 2700 can protrude from the outer surface of the spool 2700 toward the portion between the other end and the center of the roller 2400. The fourth contact 2750 of the spool 2700 can contact the roller 2400. The fourth contact 2750 of the spool 2700 can extend vertically. The outer surface of the fourth contact 2750 of the spool 2700 can bulge toward the roller 2400. In other words, the fourth contact 2750 of the spool 2700 can have a semi-cylindrical shape. As a result, the outer surface of the fourth contact 2750 of the spool 2700 and the roller 2400 can make point contact with each other at the same height (in a vertical section).

[0580] In a variant (not shown), the outer surface of the fourth contact of the spool 2700 can be flat. As a result, the outer surface of the fourth contact of the spool 2700 and the roller 2400 can make line contact with each other at the same height (in the vertical section).

[0581] The third contact 2740 and the fourth contact 2750 of the spool 2700 can be spaced apart from each other and can be located between the first shielding wall 2241 and the second shielding wall 2242 of the housing 2200.

[0582] The third contact 2740 of the spool 2700 can be located near one end of the roller 2400, and the fourth contact 2750 can be located near the other end of the roller 2400.

[0583] A magnet receiving portion 2760 may be provided on the surface of the spool 2700 facing the coil 2300. The magnet receiving portion 2760 may be formed from the outer surface of the spool 2700 inward. A first magnet 2810 may be provided in the magnet receiving portion 2760.

[0584] The upper surface of the spool 2700 may be provided with an upwardly protruding upper stop 2770. When the spool 2700 moves upward, the upper stop 2770 may contact the top plate 2110 of the cover 2100, thereby preventing the spool 2700 from moving upward. The upper stop 2770 may include multiple stops. In one example, there may be four upper stops 2770, and the four upper stops 2770 may be circumferentially spaced from each other around the hole 2710 in the spool.

[0585] Magnet 2800 can be disposed at the spool 2700 and the housing 2200. Magnet 2800 can be used to provide driving force to the spool 2700 to prevent the spool 2700 from tilting and to maintain contact between the spool 2700 and the roller 2400.

[0586] The magnet 2800 may include a first magnet 2810, a second magnet 2820 and a third magnet 2830.

[0587] The first magnet 2810 can be disposed at the wire cylinder 2700. The first magnet 2810 can be disposed on the surface of the wire cylinder 2700 facing the first connector 2210 and the second connector 2220 of the housing 2200. The first magnet 2810 can be accommodated in the magnet receiving portion 860. The first magnet 2810 can directly face the coil 2300.

[0588] The first magnet 2810 interacts electromagnetically with the coil 2300 to provide a driving force to the spool 2700. Therefore, the first magnet 2810 can be referred to as the "driving magnet". An attractive force can act between the first magnet 2810 and the terminal 2600 to prevent the spool 2700 from tilting.

[0589] The first magnet 2810 may include a first magnet portion 2811, a second magnet portion 2812, and a third magnet portion 2813. The first magnet portion 2811 may be perpendicularly spaced from the second magnet portion 2812. The third magnet portion 2813 may be located between the first magnet portion 2811 and the second magnet portion 2812.

[0590] The first magnet section 2811 can directly face the first coil section 2310. The second magnet section 2812 can directly face the second coil section 2320. The polarity directions (N pole and S pole directions) of the first magnet section 2811 and the second magnet section 2812 can be different from each other (opposite to each other).

[0591] This is because the direction in which the current flows along the first coil section 2310 and the direction in which the current flows along the second coil section 2320 are different from each other. As a result, even though the direction in which the current flows along the first coil section 2310 and the direction in which the current flows along the second coil section 2320 are different from each other, a driving force in the same direction can be generated.

[0592] The polarities of the first magnet portion 2811 and the second magnet portion 2812 can be set on the outer and inner sides, respectively. In the example, the inner side of the first magnet portion 2811 can be the N pole, and the outer side of the first magnet portion 2811 can be the S pole. The inner side of the second magnet portion 2812 can be the S pole, and the outer side of the second magnet portion 2812 can be the N pole.

[0593] The third magnet portion 2813 may be disposed between the first magnet portion 2811 and the second magnet portion 2812. The third magnet portion 2813 may not have polarity. In other words, the polarity of the third magnet portion 2813 may be neutral.

[0594] The second magnet 2820 can be disposed at the line cylinder 2700. The second magnet 2820 can be disposed on the surface of the second side wall 2240 of the line cylinder 2700 facing the housing 2200.

[0595] The second magnet 700 can directly face the roller 2400. The second magnet 2820 can be positioned between the third contact 2740 and the fourth contact 2750 of the bobbin 2700. The third contact 2740 and the fourth contact 2750 can prevent the second magnet 2820 from contacting the roller 2400 (they can be spaced apart from the roller).

[0596] The second magnet 2820 can face the third magnet 2830, wherein the second sidewall 2240 of the roller 2400 and the housing 2200 is disposed between the second magnet 2820 and the third magnet 2830. An attractive force can act between the second magnet 2820 and the third magnet 2830.

[0597] The reason for this is that roller 2400 and housing 2200 are injection-molded plastic products, through which magnetic field lines can pass. As a result, the second magnet 2820 can prevent the spool 2700 from tilting. Therefore, the second magnet 2820 can be referred to as the "first tilting magnet". Furthermore, the second magnet 2820 can bring roller 2400 into contact with spool 2700. In other words, the contact between the third contact point 2740 of spool 2700 and roller 2400, and the contact between the fourth contact point 2750 of spool 2700 and roller 2400, can be maintained by the attractive force acting between the second magnet 2820 and the third magnet 2830.

[0598] A third magnet 2830 can be disposed at the housing 2200. The third magnet 2830 can be disposed outside the second sidewall 2240 of the housing 2200. The third magnet 2830 can face the second magnet 2820, wherein the roller 2400 and the second sidewall 2240 of the housing 2200 are disposed between the third magnet 2830 and the second magnet 2820. An attractive force can act between the third magnet 2830 and the second magnet 2820. As a result, the third magnet 2830 can prevent the spool 2700 from tilting. Therefore, the third magnet 2830 can be referred to as the "second tilting magnet". Furthermore, the third magnet 2830 can bring the roller 2400 into contact with the spool 2700. In other words, the contact between the third contact point 740 of the spool 2700 and the roller 2400 can be maintained by the attractive force acting between the third magnet 2830 and the second magnet 2820.

[0599] exist Figure 32 In a first variant (not shown) of the lens moving device 2000, the third magnet 2830 may be a magnetic component. Here, the magnetic component may include a magnetic metal. Similarly, since an attractive force acts between the second magnet 2820 and the magnetic component, an action can be performed by… Figure 32 The functions performed by the second magnet 2820 and the third magnet 2830 shown.

[0600] exist Figure 32 In a second variant (not shown) of the lens moving device 2000, the second magnet 2820 may be a magnetic component. Here, the magnetic component may include a magnetic metal. Similarly, since an attractive force acts between the third magnet 2830 and the magnetic component, an action can be performed by… Figure 32 The functions performed by the second magnet 2820 and the third magnet 2830 shown are as follows. In the second variant, the third magnet 2830 may be referred to as the "second magnet".

[0601] Figure 40 The image shows a perspective view of a lens moving device 3000 according to another embodiment, with the cover removed from the lens moving device.

[0602] Reference Figure 40 ,and Figure 32 Similar to the lens moving device 2000 shown, the lens moving device 3000 may include a cover (not shown), a housing 3200, a coil 3300, a roller (not shown), a shielding member 3500, a spool 3700, and a magnet (not shown). Figure 32 The lens moving device 2000 shown can be similar to that according to Figure 40 The illustrated embodiment is a lens-mounted mobile device 3000. In other words, regarding... Figure 32 The descriptions of the housing 2200, coil 2300, roller 2400, shielding member 2500, bobbin 2700, and magnet 2800 shown can be applied to Figure 40 The housing 3200, coil 3300, roller (not shown), shielding member 3500, spool 3700 and magnet (not shown) are shown.

[0603] according to Figure 40 The lens mobile device of the illustrated embodiment is characterized by including a Hall sensor 33900. The lens mobile device 3000 may further include a Hall sensor substrate 3910.

[0604] Because the Hall sensor 3900 can measure the position (or displacement) of the spool 3700 and provide feedback on the measured information to perform the AF function, the AF function is performed more accurately.

[0605] The Hall sensor 3900 can be disposed in the space defined between the first coil portion 3310, the second coil portion 3320, the third coil portion 3330 and the fourth coil portion 3340 of the coil 3300.

[0606] The Hall sensor 3900 can be disposed between the first retainer and the second retainer of the housing 3200. In other words, the Hall sensor 3900 can be disposed at the center of the coil 3300.

[0607] The Hall sensor 3900 can measure the position of the bobbin 3700 by detecting the magnetic force of the first magnet. The Hall sensor 3900 can be mounted on the Hall sensor substrate 3910.

[0608] The Hall sensor substrate 3910 can be disposed between the housing 3200 and the cover. The Hall sensor substrate 3910 can be positioned facing the coil 3300. The Hall sensor substrate 3910 can be electrically connected to the coil 3300. The Hall sensor substrate 3910 can be electrically connected to the substrate 2030 of the camera module 2001. Therefore, the coil 1300 can receive current from the substrate 2030 of the camera module 2001 via the Hall sensor substrate 3910.

[0609] The measured position value of the bobbin 3700 can be transmitted to the substrate 2030 of the camera module 2001 via the Hall sensor substrate 3910. The controller of the camera module 2001 can control the current applied to the coil 3300 based on the measured position value of the bobbin 3700.

[0610] In the lens moving device 3000, this can be omitted. Figure 32 The lens moving device 2000 shown has a terminal 2600. Instead, a magnetic body 3600 can be additionally provided. The plate-shaped magnetic body 3600 can be provided between the second coil portion 3320 and the second connector. An attractive force can act between the magnetic body 3600 and the first magnet, thereby preventing the coil 3700 from tilting.

[0611] The optical device according to an embodiment may include: a main body (not shown); a display unit (not shown) disposed on a surface of the main body for displaying information; and a camera module (not shown) for capturing images or photographs, the camera module being disposed inside the main body and electrically connected to the display unit.

[0612] In the following description, the structure of the camera module 2001 according to an embodiment will be described with reference to the accompanying drawings. Figure 41 It shows based on Figure 33 The image is a cross-sectional view of a camera module 2001 according to an embodiment. The camera module 2001 may include a lens moving device 3000, a lens module 2010, an infrared blocking filter 2020, a substrate 2030, an image sensor 2040, and a controller (not shown).

[0613] Lens module 2010 may include a lens and a lens barrel. Lens module 2010 may include one or more lenses (not shown) and a lens barrel that houses the one or more lenses. Lens module 2010 need not include the lens barrel as a component thereon; any retainer structure is possible as long as it can support one or more lenses.

[0614] The lens module 2010 can be coupled to the lens moving device 3000 and can move together with it. For example, the lens module 2010 can be coupled to the lens moving device 3000 via a threaded connection.

[0615] For example, an adhesive (not shown) can be used to couple the lens module 2010 to the lens moving device 3000. Light that has passed through the lens module 2010 can be radiated to the image sensor 2040.

[0616] The infrared blocking filter 2020 can prevent light in the infrared region from entering the image sensor 2040. For example, the infrared blocking filter 2020 can be located between the lens module 2010 and the image sensor 2040.

[0617] The infrared blocking filter 2020 may be located at a retainer member (not shown) that is separately disposed from the housing 2200. Alternatively, the infrared blocking filter 2020 may be installed in a hole B-1 formed in the central region of the base B of the housing 2200.

[0618] Infrared blocking filters 2020 can be made of, for example, film or glass materials. For instance, infrared blocking filters 2020 can be manufactured by coating a plate-shaped optical filter, such as a cover glass, with an infrared shielding material for protecting image areas.

[0619] The substrate 2030 may be a PCB (printed circuit board). The substrate 2030 may support the lens moving device 3000. The image sensor 20 may be mounted on the substrate 2030. For example, the image sensor may be located in the inner region of the upper surface of the substrate, and the sensor holder (not shown) may be located in the outer region of the upper surface of the substrate.

[0620] The lens moving device 3000 can be located above the sensor holder. Alternatively, the image sensor 2040 can be located in the inner region of the upper surface of the substrate 2030. With this structure, light that has passed through the lens module 2010 housed in the lens moving device 3000 can be radiated to the image sensor 2040 mounted on the substrate 2030.

[0621] The substrate 2030 can supply power to the lens moving device 3000. The substrate 2030 can be electrically connected to the display unit. A controller for controlling the lens moving device 3000 can be located on the substrate 2030.

[0622] Image sensor 2040 can be mounted on substrate 2030. Image sensor 2040 is configured such that its optical axis is aligned with lens module 2010. Therefore, image sensor 2040 can receive light that has passed through lens module 2010. Image sensor 2040 can output the radiated light as an image. Image sensor 2040 can be, for example, a CCD (charge coupled device), MOS (metal oxide semiconductor), CPD, or CID. However, the type of image sensor 2040 is not limited to these.

[0623] The controller can be mounted on the substrate 2030. The controller can be located externally to the lens moving device 3000, or internally. The controller can control the direction, intensity, amplitude, etc., of the current supplied to each component constituting the lens moving device 3000. The controller can control the lens moving device 3000 to perform an autofocus function. In other words, the controller can control the lens moving device 3000 to move the lens module 2010 along the optical axis.

[0624] Figure 42 This is an exploded perspective view showing a camera module 200 according to an embodiment.

[0625] Reference Figure 42 The camera module 200 may include a lens or lens barrel 400, a lens moving device 100, an adhesive member 612, a filter 610, a first retainer 600, a second retainer 800, an image sensor 810, a motion sensor 820, a controller 830, and a connector 840. According to another embodiment, the camera module may replace the lens moving device 100 and include a lens moving device 1100 or 2000 according to other embodiments.

[0626] The lens or lens barrel 400 can be installed in the spool 110 of the lens moving device 100.

[0627] The first holder 600 may be disposed below the base 210 of the lens moving device 100. The filter 610 may be mounted on the first holder 600, and the first holder 600 may have a protrusion 500 on which the filter 610 is disposed.

[0628] The adhesive member 612 can couple or attach the base 210 of the lens moving device 100 to the first retainer 600. The adhesive member 612 can be, for example, epoxy resin, thermosetting adhesive, or UV-curing adhesive.

[0629] The filter 610 can be used to prevent light within a specific frequency band that has passed through the lens barrel 400 from being introduced into the image sensor 810. The filter 610 can be, for example, an infrared light blocking filter, but is not limited to this. Here, the direction of the filter 610 can be set to be parallel to the XY plane.

[0630] An opening may be formed in the area of ​​the first holder 600 where the filter 610 is mounted to allow light passing through the filter 610 to be introduced into the image sensor 810.

[0631] 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 may be an area on which the light passing through the filter 610 is formed and which includes an image in the light introduced into the image sensor 810.

[0632] The second holder 800 may include, for example, various circuits, devices, and controllers to convert the image formed on the image sensor 810 into an electrical signal and transmit the electrical signal to an external component. The second holder 800 may be implemented as a circuit board on which the image sensor 810 may be mounted, on which circuit patterns may be formed, and on which various devices may be coupled.

[0633] The image sensor 810 can receive an image contained in light introduced via the lens moving parts 100, 1100, 2100, and can convert the received image into an electrical signal.

[0634] The filter 610 and the image sensor 810 can be spaced apart from each other so that they are opposite each other in a first direction.

[0635] The motion sensor 820 can be mounted on the second holder 800 and can be electrically connected to the controller 830 by means of a circuit pattern formed on the second holder 800.

[0636] The motion sensor 820 can output information about the rotational angular velocity caused by motion. The motion sensor 820 can be implemented as a dual-axis or tri-axis gyroscope sensor or an angular velocity sensor.

[0637] The controller 830 can be mounted on the second retainer 800. The second retainer 800 can be electrically connected to the lens moving device 100. For example, the second retainer 800 can be electrically connected to the coil 120 of the lens moving device 100 and can supply a drive signal to the coil 120.

[0638] Connector 840 can be electrically connected to second retainer 800 and can have a port for electrically connecting to an external device.

[0639] Figure 43 This is a perspective view showing a portable terminal 200A according to an embodiment. Figure 43 It is shown Figure 35 A view of the structure of the portable terminal 200A shown.

[0640] Reference Figure 43 and Figure 44The portable terminal 200A (hereinafter referred to as the "terminal") may include a main body 850, a wireless communication unit 710, an audio / video (A / V) input unit 720, a sensing unit 740, an input / output unit 750, a storage unit 760, an interface unit 770, a controller 780, and a power supply unit 790.

[0641] Figure 43 The main body 850 shown has a strip shape, but is not limited to it, and can be any of various types such as sliding, folding, swinging or rotating, wherein two or more sub-bodies are coupled to be movable relative to each other.

[0642] The main body 850 may include a housing (e.g., a shell, cover, or cover) that defines the appearance of the terminal. For example, the main body 850 may be divided into a front housing 851 and a rear housing 852. Various electronic components of the terminal may be housed in the space defined between the front housing 851 and the rear housing 852.

[0643] 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 to which the terminal 200A resides. 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 near-field communication module 714, and a location information module 715.

[0644] The A / V input unit 720 is used to input audio or video signals, and may include, for example, a camera 721 and a microphone 722.

[0645] Camera 721 may be camera 200 including camera module 200 according to an embodiment.

[0646] The sensing unit 740 can sense the current state of the terminal 200A, such as whether the terminal 200A is on or off, the position of the terminal 200A, whether the user is touching it, the direction of the terminal 200A, or the acceleration / deceleration of the terminal 200A, and can generate sensing signals to control the operation of the terminal 200A. When the terminal 200A is, for example, a slider cellular phone, the sensing unit 740 can sense whether the slider cellular phone is on or off. In addition, the sensing unit 740 can sense the power supply from the power supply unit 790, the coupling between the interface unit 770 and external devices, etc.

[0647] For example, the input / output unit 750 is used to generate visual, auditory, or tactile inputs or outputs. The input / output unit 750 can generate input data to control the actions of the terminal 200A, and can display information processed in the terminal 200A.

[0648] The input / output unit 750 may include a keyboard unit 730, a display module 751, a sound output module 752, and a touch screen panel 753. The keyboard unit 730 can generate input data in response to input on the keyboard.

[0649] Display module 751 may include a plurality of pixels, the colors of which change in response to an electrical signal applied thereto. For example, display module 751 may include at least one of a liquid crystal display, a thin-film transistor liquid crystal display, an organic light-emitting diode, a flexible display, and a 3D display.

[0650] For example, the sound output module 752 can output audio data received from the wireless communication unit 710 in call signal receiving mode, call mode, recording mode, voice recognition mode or broadcast receiving mode, or it can output audio data stored in the storage unit 760.

[0651] The touchscreen panel 753 can convert the capacitance change caused by the user touching a specific area of ​​the touchscreen into an electrical input signal.

[0652] Storage unit 760 can temporarily store programs for processing and control by controller 780, as well as input / output data (e.g., telephone numbers, messages, audio data, still images, moving images, etc.). For example, storage unit 760 can store images captured by camera 721, such as pictures or moving images.

[0653] Interface unit 770 serves as a path through which the lens mobile device connects to an external device connected to terminal 200A. Interface unit 770 can receive power or data from external components and transmit it to various components within terminal 200A, or it can transmit data from within terminal 200A to external components. For example, 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 to a device equipped with an identification module, an audio input / output (I / O) port, a video input / output (I / O) port, a headphone port, etc.

[0654] The controller 780 can control the general operations of the terminal 200A. For example, the controller 780 can perform control and processing related to voice calls, data communications, and video calls.

[0655] The controller 780 may include a multimedia module 781 for multimedia playback. The multimedia module 781 may be implemented in the controller 780 or may be implemented separately from the controller 780.

[0656] The controller 780 can perform pattern recognition processing, which can recognize handwritten or drawing input performed on the touch screen as characters and images, respectively.

[0657] The power supply unit 790, under the control of the controller 780, can supply the power required to operate each component when receiving external or internal power.

[0658] The features, structures, effects, etc., described above in the embodiments are included in at least one embodiment, but the present invention is not limited to these embodiments. Furthermore, the features, structures, effects, etc., illustrated in the various embodiments can be combined with other embodiments or modified by those skilled in the art. Therefore, anything relating to these combinations and modifications should be interpreted as falling within the scope of the embodiments.

[0659] Industrial applicability

[0660] The embodiments can be applied to lens moving devices that can increase the speed of AF operation, suppress the movement of the spool during AF operation, and increase the possible size range of the magnet and coil, as well as camera modules and optical devices that respectively include the lens moving device.

Claims

1. A lens-mounted device, comprising: The housing includes a first pillar, a second pillar, a third pillar, and a fourth pillar; A bobbin, the bobbin being disposed within the housing; A coil, the coil being disposed between the first support and the second support of the housing; A first magnet is disposed at the spool so as to face the coil; as well as A roller, disposed between the third and fourth supports of the housing, is configured to contact the spool. The housing further includes a first shielding wall disposed between one end of the roller and the bobbin, and a second shielding wall disposed between the other end of the roller and the bobbin. The spool includes at least one contact point disposed between the first shielding wall and the second shielding wall to contact the middle portion of the roller.

2. The lens moving device according to claim 1, wherein, The housing also includes a base, and The first pillar, the second pillar, the third pillar, and the fourth pillar are respectively located at the four corners of the base and protrude upward from the base.

3. The lens moving device according to claim 1, wherein, At least a portion of the coil is exposed to the interior of the housing through the space between the first and second supports.

4. The lens moving device according to claim 1, wherein, The coil and the roller face each other, and the bobbin is located between the coil and the roller.

5. The lens moving device according to claim 1, wherein, The roller is configured to rotate about an axis extending from the third post toward the fourth post.

6. The lens moving device according to claim 1, wherein, The first shielding wall protrudes from the third pillar toward the fourth pillar, and the second shielding wall protrudes from the fourth pillar toward the third pillar.

7. The lens moving device according to claim 1, wherein, The housing also includes: A first sidewall, which connects the second pillar and the third pillar. The second sidewall connects the third pillar and the fourth pillar, and The third sidewall connects the fourth pillar to the first pillar, and The middle portion of the roller is disposed between the second sidewall and the bobbin.

8. The lens moving device according to claim 7, wherein, The first shielding wall and the second shielding wall are spaced apart from the second side wall of the housing.

9. The lens moving device according to claim 7, wherein, The housing also includes a first contact and a second contact that protrude from the second sidewall of the housing to contact one end and the other end of the roller, respectively.

10. The lens moving device according to claim 7, wherein, The housing also includes: A first stop, the first stop protruding from the first sidewall of the housing; and A second stop, which protrudes from the third sidewall of the housing, and The spool also includes grooves for accommodating the first stop and the second stop, respectively.

11. The lens moving device according to claim 7, further comprising: A second magnet is disposed on the bobbin so as to face the roller; as well as A third magnet is disposed on the second side wall of the housing.

12. The lens moving device according to claim 11, wherein, An attractive force acts between the second magnet and the third magnet.

13. The lens moving device according to claim 12, wherein, The roller is positioned between the second magnet and the third magnet.

14. The lens moving device of claim 7, further comprising a shielding member disposed above the second sidewall of the housing to prevent the roller from separating from the housing together with the spool.

15. The lens moving device according to claim 7, wherein, The housing also includes: A first connector, the first connector connecting the first post and the second post; and The second connector connects the first post and the second post below the first connector, and... The coil is disposed between the first connector and the second connector.

16. The lens moving device according to claim 1, wherein, The at least one contact of the spool extends vertically and has a semi-cylindrical shape.

17. The lens moving device of claim 1, further comprising a terminal disposed between the housing and the coil and electrically connected to the coil, the terminal having a magnetic material such that an attractive force acts between the terminal and the magnet.

18. A lens-mounted device, comprising: A housing, the housing comprising a first pillar and a second pillar adjacent to the first pillar; A bobbin, the bobbin being disposed within the housing; The first roller unit and the second roller unit are respectively disposed in the first support column and the second support column; A magnet, wherein the magnet is disposed at the spool; as well as A coil, disposed between the first post and the second post to correspond to the magnet. The bobbin is configured to contact the first roller unit and the second roller unit.

19. A camera module, comprising: lens; The lens-mounted mobile device according to any one of claims 1 to 18; as well as Image sensor.

20. An optical device comprising the camera module of claim 19.

Images