Lens driving device, camera device, and optical device

Abstract

The present embodiment relates to a lens driving device comprising: a fixed member; the first moving part is arranged on the fixed part; the second moving part is arranged in the first moving part; the third moving part is arranged in the second moving part; a first driving member that moves the first moving member in a first direction perpendicular to the optical axis direction; a second driving member that moves the second moving member in a second direction perpendicular to the optical axis direction and the first direction; and a third driving member that moves the third moving member in the optical axis direction, in which the first driving member includes: a first magnet provided on the fixed member; and a first coil disposed on the first moving member, and the second driving member includes: a second magnet disposed on the second moving member; and a second coil disposed on the first moving member.

Description

Technical Field

[0001] The present embodiment relates to a lens driving device, a camera device, and an optical device. Background Art

[0002] A camera device is a device that takes pictures or videos of a subject, and is installed in optical instruments such as smartphones, drones, and vehicles.

[0003] An auto focus function that automatically adjusts the focus according to the distance of the subject is applied to the camera device. In addition, a shake correction function is applied to prevent the focus from shaking due to the user's hand shaking.

[0004] Autofocus and hand-shake correction functions can be performed through the electromagnetic interaction between the magnet and the coil.

[0005] However, in a conventional lens driving device, in the arrangement of a magnet and a coil for performing an image stabilization function, a magnet that does not require electrical connection is provided in a moving part, and a coil is provided in a fixed part. In this case, there is a problem that a magnet heavier than a coil is provided in a moving part, which increases current consumption for performing a hand shake correction function.

[0006] In particular, recently, as image sensors have become highly pixelated, the lens diameter has increased, and the weight of the lens has also increased, which exacerbates the problem.

[0007] In addition, in order to set up magnets and coils for performing autofocus functions and hand shake correction functions, a size larger than the thickness of the smartphone in the optical axis direction is required, which causes the camera device installed on the smartphone to protrude more than other parts of the smartphone.

[0008] (Patent Document 1) KR 10-2015-0118005A Summary of the invention

[0009] [Technical topics]

[0010] In a structure for performing a hand shake correction function, the present embodiment is intended to provide a lens driving device in which power consumption for performing an auto focus function is reduced by arranging a coil lighter than a magnet in a moving part.

[0011] In addition, the present embodiment aims to provide a camera device which has an autofocus function and a hand-shake correction function but has a minimized size in the optical axis direction.

[0012] [Technical solution]

[0013] According to the present embodiment, the lens driving device includes: a fixed component; a first movable component arranged on the fixed component; a second movable component arranged in the first movable component; a third movable component arranged in the second movable component; a first driving component, which causes the first movable component to move along a first direction perpendicular to the optical axis direction; a second driving component, which causes the second movable component to move along a second direction perpendicular to the optical axis direction and the first direction; and a third driving component, which causes the third movable component to move along the optical axis direction, wherein the first driving component may include: a first magnet arranged on the fixed component; and a first coil arranged in the first movable component, and wherein the second driving component may include: a second magnet arranged in the second movable component; and a second coil arranged in the first movable component.

[0014] The third driving part may include a third magnet provided on the third moving part and a third coil provided in the second moving part.

[0015] The lens driving device may include a first ball disposed between the fixing member and the first moving member along the second direction.

[0016] The lens driving device may include a second ball bearing disposed between the first moving part and the second moving part along the first direction.

[0017] The lens driving device may include a third ball disposed between the second moving part and the third moving part along the second direction.

[0018] The fixing member includes a lower plate and a protruding portion protruding from the lower plate, the protruding portion of the fixing member is disposed within the first moving member, and the first rolling ball may be disposed in the protruding portion of the fixing member.

[0019] The lens driving device includes: a first substrate, which includes an external part arranged in a fixed part, an internal part arranged in a first movable part, and a connecting part connecting the external part and the internal part, and at least a part of the connecting part of the first substrate can be formed movably along a first direction.

[0020] The lens driving device includes: a second substrate, which includes an external part arranged on a fixed part, an internal part arranged on a second movable part, and a connecting part connecting the external part and the internal part, wherein at least a part of the connecting part of the second substrate can be formed movably along a first direction and a second direction.

[0021] The lens driving device may include a first yoke that is provided in the first moving member and has an attractive force with the first magnet.

[0022] The above lens driving device may include a second yoke that is provided in the first moving member and has an attractive force with the second magnet.

[0023] The lens driving device may include a third yoke provided in the second moving part and having an attractive force with the third magnet.

[0024] The fixing component includes a base and a cover member arranged in the base, wherein the cover member includes a first side plate and a second side plate arranged opposite to each other, and a third side plate and a fourth side plate arranged on opposite sides, and wherein the outer surface of the third magnet can be arranged parallel to the second side plate.

[0025] The fixing component includes a base and a cover member arranged in the base, wherein the cover member includes a first side plate and a second side plate arranged opposite to each other, and a third side plate and a fourth side plate arranged on opposite sides, and wherein, when viewed from above, the outer surface of the third magnet can be inclinedly arranged between the second side plate and the fourth side plate.

[0026] According to the present embodiment, the lens driving device includes: a fixed component; a first movable component arranged on the fixed component; a second movable component arranged in the first movable component; a third movable component arranged in the second movable component; a first driving component, which causes the first movable component to move along a first direction perpendicular to the optical axis direction; a second driving component, which causes the second movable component to move along a second direction perpendicular to the optical axis direction and the first direction; and a third driving component, which causes the third movable component to move along the optical axis direction, wherein the first movable component includes a first part arranged outside the fixed component, and wherein the ball can be arranged between the first part of the first movable component and the fixed component.

[0027] The camera device according to the present embodiment may include: a printed circuit board; an image sensor provided in the printed circuit board; a lens driving device provided on the printed circuit board; and a lens coupled to the lens driving device.

[0028] The optical device according to the present embodiment may include: a main body; a camera device provided in the main body; and a display provided in the main body and outputting at least any one or more of an image and a video captured by the camera device.

[0029] [Beneficial Effects]

[0030] According to the present embodiment, since the coil lighter than the magnet is provided in the moving part, the current consumption for performing the auto focus function can be reduced.

[0031] In addition, an auto focus function and a hand shake correction function can be performed in a camera device whose size in the optical axis direction is minimized.

[0032] That is, according to this embodiment, even a camera device that does not protrude from a smartphone can perform both the autofocus function and the hand-shake correction function. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a conceptual diagram of the lens driving device according to the present embodiment.

[0034] Figure 2 It is a perspective view of the lens driving device according to the present embodiment.

[0035] Figure 3 It is along Figure 2 A cross-sectional view taken along line AA.

[0036] Figure 4 It is along Figure 2 A cross-sectional view taken along line BB.

[0037] Figure 5 It is along Figure 2 Cross-sectional view taken along line CC.

[0038] Figure 6 It is along Figure 2 A cross-sectional view taken along line DD.

[0039] Figure 7 It is along Figure 2 A cross-sectional view taken along line EE.

[0040] Figure 8 It is an exploded perspective view of the lens driving device according to the present embodiment.

[0041] Fig. 9 It is from Figure 8 Exploded perspective views of the lens driving device according to the present embodiment viewed from different directions.

[0042] Fig.10 is a cross-sectional view of the lens driving device according to the present embodiment cut in a direction perpendicular to the optical axis and viewed from above.

[0043] Fig.11 is the ratio in the direction perpendicular to the optical axis Fig.10 A cross-sectional view of the lens driving device according to the present embodiment cut along an upper plane and viewed from above.

[0044] Fig.12 It is a perspective view of the lens driving device according to the present embodiment with the cover omitted.

[0045] Fig.13 It is from Figure 7Exploded stereograms viewed from different directions.

[0046] Fig.14 1 is a perspective view showing a fixing component and related structures of the lens driving device according to the present embodiment.

[0047] Fig.15 It is shown from Fig.11 Stereoscopic diagram of the moving parts and related structures of the lens driving device viewed from different directions.

[0048] Fig.16 : is a perspective view showing an OIS-x moving part and related structures of the lens driving device according to the present embodiment.

[0049] Fig.17 is a perspective view showing an OIS-x carrier and related coils of the lens driving device according to the present embodiment.

[0050] Fig.18 is a perspective view showing an outer substrate and related coils of the lens driving device according to the present embodiment.

[0051] Fig.19 : is a perspective view showing the OIS-y moving component and related structures of the lens driving device according to the present embodiment.

[0052] Fig. 20 is a perspective view showing an outer substrate and related coils of the lens driving device according to the present embodiment.

[0053] Fig.21 1 is a perspective view showing an AF moving component and related structures of the lens driving device according to the present embodiment.

[0054] Fig. 22 FIG. 1 is an exploded perspective view of an OIS-x carrier of the lens driving device according to the present embodiment.

[0055] Fig.23 It is an exploded perspective view of the OIS-y carrier of the lens driving device according to the present embodiment when viewed from below.

[0056] Fig.24 : is a cross-sectional perspective view showing an OIS-x driving component and related structures of the lens driving device according to the present embodiment.

[0057] Fig.25 : is a cross-sectional perspective view showing an OIS-y driving component and related structures of the lens driving device according to the present embodiment.

[0058] Fig.26 is a perspective view of a lens driving device according to a modified example in which a cover is omitted.

[0059] Fig. 27 Cut perpendicular to the optical axis and viewed from above Fig.26 Cross-sectional view of .

[0060] Figures 28 to 30 FIG. 1 is a diagram for explaining autofocus driving of the lens driving device according to the present embodiment. Fig.28 is a cross-sectional view showing the appearance of the moving part in an initial state in which no current is applied to the AF coil. Fig.29 is a cross-sectional view showing an appearance that the moving part moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.30 is a cross-sectional view showing an appearance that a moving part moves downward in the optical axis direction when a reverse current is applied to the AF coil.

[0061] Figure 31 to Figure 33 It is a diagram for explaining the hand shake correction drive of the lens driving device according to the present embodiment. Fig.31 is a cross-sectional view showing the appearance of the OIS moving part in an initial state in which no current is applied to the OIS-x coil and the OIS-y coil. Fig.32 is a cross-sectional view showing the appearance of an OIS moving part that moves in the x-axis direction perpendicular to the optical axis when a current is applied to the OIS-x coil. Fig.33 is a cross-sectional view showing the appearance of an OIS-y moving part that moves in the y-axis direction perpendicular to both the optical axis and the x-axis when a current is applied to the OIS-y coil.

[0062] Fig.34 It is an exploded perspective view of the camera device according to this embodiment.

[0063] Fig.35 It is a perspective view of the optical device according to this embodiment.

[0064] Fig.36 is a perspective view of an optical device according to a modified embodiment. DETAILED DESCRIPTION

[0065] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0066] However, the technical concept of the present invention is not limited to some embodiments to be described, but can be implemented in various forms, and within the scope of the technical concept of the present invention, one or more of the constituent elements can be selectively combined or replaced between the various embodiments.

[0067] In addition, unless explicitly defined and described, the terms (including technical terms and scientific terms) used in the embodiments of the present invention may be interpreted as meanings that can be generally understood by those skilled in the art, and commonly used terms such as terms defined in dictionaries may be interpreted in consideration of the contextual meaning of the relevant technology.

[0068] In addition, the terms used in this specification are for describing the embodiments and are not intended to limit the present invention.

[0069] In this specification, unless specifically stated in a phrase, a singular form may include a plural form, and when described as "at least one (or more than one) of A and B and C", it may include one or more of all combinations that can be combined with A, B and C.

[0070] In addition, when describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only intended to distinguish a component from other components, and these terms do not limit the nature, order, or sequence of the components.

[0071] Furthermore, when a component is described as being “connected,” “coupled” or “interconnected” to another component, the component is not only directly connected, coupled or interconnected to the other component, but may also include a situation where it is “connected,” “coupled” or “interconnected” due to another component between the other components.

[0072] In addition, when described as being formed or disposed “on” or “below” each component, “on” or “below” means that it includes not only a case where two components are in direct contact, but also a case where one or more other components are formed or disposed between the two components. In addition, when expressed as “on” or “below”, it may include not only a meaning in an upward direction relative to a component, but also a meaning in a downward direction relative to a component.

[0073] The term “optical axis” (see Fig.28 The “OA) direction” is defined as the optical axis direction of the lens and / or image sensor coupled to the lens driving device.

[0074] The "vertical direction" used hereinafter may be a direction parallel to or the same as the optical axis direction. The vertical direction may correspond to the "z-axis direction". The "horizontal direction" used hereinafter may be a direction perpendicular to the vertical direction. That is, the horizontal direction may be a direction perpendicular to the optical axis. Therefore, the horizontal direction may include the "x-axis direction" and the "y-axis direction".

[0075] The "auto focus (AF) function" used hereinafter is defined as a function of automatically focusing on an object by adjusting the distance to the image sensor by moving the lens along the optical axis according to the distance of the object, so that a clear image of the object can be obtained on the image sensor. In addition, "closed loop auto focus (CLAF) control" is defined as detecting the distance between the image sensor and the lens and controlling the position of the lens through real-time feedback to improve the accuracy of focus adjustment.

[0076] The "optical image stabilization (OIS) function" used hereinafter is defined as a function that moves or tilts the lens in a direction perpendicular to the optical axis to offset hand shake so as to prevent the image or video from shaking due to the user's hand shake. In addition, "closed loop auto focus (CLAF) control" is defined as feedback that detects the position of the lens relative to the image sensor and controls the lens position in real time to improve the accuracy of hand shake correction.

[0077] Hereinafter, any one of the “OIS-x moving part 200 ,” the “OIS-y moving part 300 ,” and the “AF moving part 400 ” may be referred to as a “first moving part,” another may be referred to as a “second moving part,” and another may be referred to as a “third moving part.”

[0078] Hereinafter, any one of the “OIS-x driving part 500 ,” the “OIS-y driving part 600 ,” and the “AF driving part 700 ” may be referred to as a “first driving part,” another may be referred to as a “second driving part,” and another may be referred to as a “third driving part.”

[0079] Hereinafter, any one of the “OIS-x magnet 510 ,” the “OIS-y magnet 610 ,” and the “AF magnet 710 ” may be referred to as a “first magnet,” another may be referred to as a “second magnet,” and another may be referred to as a “third magnet.”

[0080] Hereinafter, any one of the “OIS-x coil 520 ,” the “OIS-y coil 620 ,” and the “AF coil 720 ” may be referred to as a “first coil,” another may be referred to as a “second coil,” and another may be referred to as a “third coil.”

[0081] Hereinafter, one of the “AF sensor 530 ,” the “OIS-x sensor 630 ,” and the “OIS-y sensor 730 ” may be referred to as a “first sensor,” another may be referred to as a “second sensor,” and another may be referred to as a “third sensor.”

[0082] Hereinafter, one of the “OIS-x guide ball 810 ,” the “OIS-y guide ball 820 ,” and the “AF guide ball 830 ” may be referred to as the “first ball,” another may be referred to as the “second ball,” and another may be referred to as the “third ball.”

[0083] Hereinafter, one of the “external substrate 910 ” and the “internal substrate 920 ” may be referred to as a “first substrate”, and the other may be referred to as a “second substrate”.

[0084] In the following, any one of the “OIS-x yoke 540”, “OIS-y yoke 640”, “AF yoke 740”, “OIS-x ball pressure yoke 860”, “OIS-y ball pressure yoke 870” and “AF ball pressure yoke 880” is referred to as the “first yoke”, the other is referred to as the “second yoke”, the other is referred to as the “third yoke”, the other is referred to as the “fourth yoke”, the other is referred to as the “fifth yoke”, and the other is referred to as the “sixth yoke”.

[0085] Hereinafter, the configuration of a lens driving device according to the present embodiment is described with reference to the drawings.

[0086] Figure 1 is a conceptual diagram of a lens driving device according to the present embodiment; Figure 2 is a perspective view of a lens driving device according to the present embodiment; Figure 3 It is along Figure 2 A cross-sectional view taken along line AA;

[0087] Figure 4 It is along Figure 2 A cross-sectional view taken along line BB; Figure 5 It is along Figure 2 A cross-sectional view taken along line CC; Figure 6 It is along Figure 2 A cross-sectional view taken along line DD; Figure 7 It is along Figure 2 A cross-sectional view taken along line EE of ; Figure 8 is an exploded perspective view of the lens driving device according to the present embodiment; Fig. 9 It is from Figure 8 An exploded perspective view of the lens driving device according to the present embodiment viewed from different directions; Fig.10 is a cross-sectional view of the lens driving device according to the present embodiment cut in a direction perpendicular to the optical axis and viewed from above; Fig.11 is the ratio in the direction perpendicular to the optical axis Fig.10 A cross-sectional view of the lens driving device according to the present embodiment cut on a higher plane and viewed from above; Fig.12is a perspective view of a lens driving device according to the present embodiment with a cover omitted; Fig.13 It is from Figure 7 Exploded stereograms viewed from different directions; Fig.14 is a perspective view showing a fixing component and related structures of a lens driving device according to the present embodiment; Fig.15 It is shown from Fig.11 A three-dimensional diagram of the moving parts and related structures of the lens driving device viewed from different directions; Fig.16 is a perspective view showing an OIS-x moving component and related structures of a lens driving device according to the present embodiment; Fig.17 is a perspective view showing an OIS-x carrier and related coils of the lens driving device according to the present embodiment; Fig.18 is a perspective view showing an outer substrate and related coils of the lens driving device according to the present embodiment; Fig.19 is a perspective view showing an OIS-y moving component and related structures of a lens driving device according to the present embodiment; Fig. 20 is a perspective view showing an outer substrate and related coils of the lens driving device according to the present embodiment; Fig.21 is a perspective view showing an AF moving component and related structures of the lens driving device according to the present embodiment; Fig. 22 is an exploded perspective view of an OIS-x carrier of the lens driving device according to the present embodiment; Fig.23 is an exploded bottom perspective view of an OIS-y carrier of the lens driving device according to the present embodiment; Fig.24 is a cross-sectional perspective view showing an OIS-x driving component and related structures of the lens driving device according to the present embodiment; and Fig.25 : is a cross-sectional perspective view showing an OIS-y driving component and related structures of the lens driving device according to the present embodiment.

[0088] The lens driving device 10 may be a voice coil motor (VCM). The lens driving device 10 may be a lens driving motor. The lens driving device 10 may be a lens driving actuator. The lens driving device 10 may include an AF module. The lens driving device 10 may include an OIS module.

[0089] The lens driving device 10 may include a fixed component 100. The fixed component 100 may be a portion that is relatively fixed when the moving component moves. The moving component may move against the fixed component 100.

[0090] The lens driving device 10 may include a base 110. The fixing member 100 may include a base 110. The base 110 may be disposed below the OIS-x carrier 210. The base 110 may be disposed below the OIS-y carrier 310. The base 110 may be disposed below the AF carrier 410. The base 110 may be coupled to the cover 120. The OIS-x carrier 210, the OIS-y carrier 310, and the AF carrier 410 may be disposed on the base 110. The OIS-x carrier 210, the OIS-y carrier 310, and the AF carrier 410 may be disposed on a lower plate portion 111 of the base 110. The OIS-x carrier 210, the OIS-y carrier 310, and the AF carrier 410 may be disposed within the base 110.

[0091] The base 110 may include a lower plate 111. The base 110 may include a protruding portion 112. The protruding portion 112 may be a "side plate". The protruding portion 112 may be a "side plate". The protruding portion 112 may be a "side wall". The protruding portion 112 of the base 110 may extend from the upper surface of the lower plate 111. The protruding portion 112 of the base 110 may protrude from the lower plate 111. The protruding portion 112 of the base 110 may protrude upward from the upper surface of the lower plate 111. The protruding portion 112 of the base 110 may be disposed in the OIS-x moving part 200. The protruding portion 112 of the base 110 may be disposed in the OIS-x carrier 210. The protruding portion 112 of the base 110 may be disposed between the OIS-x carrier 210 and the OIS-y carrier 310. The protruding portion 112 of the base 110 may be disposed between the OIS-x carrier 210 and the AF carrier 410. The OIS-x guide ball 810 may be disposed on the protruding portion 112 of the fixing member 100. The OIS-x magnet 510 may be disposed on the protruding portion 112 of the fixing member 100.

[0092] The base 110 may include a groove 113. The groove 113 may be an "OIS-x guide ball accommodating groove". The OIS-x guide ball 810 may be disposed in the groove 113. The groove 113 may be in direct contact with the OIS-x guide ball 810. The groove 113 may be disposed in a direction perpendicular to the optical axis. The groove 113 may include a plurality of grooves. The groove 113 may include four grooves. The four grooves may be disposed parallel to each other. The groove 113 may include a first groove that contacts the OIS-x guide ball 810 at two points and a second groove that contacts the OIS-x guide ball 810 at one point. In a modified embodiment, both the first groove and the second groove may contact the OIS-x guide ball 810 at two points.

[0093] The base 110 may include a step. The step may be formed at a lower end of an outer side surface of the base 110. The step may protrude from the outer side surface of the base 110. The side plate 122 of the cover 120 may be disposed in the step of the base 110.

[0094] The lens driving device 10 may include a cover 120. The fixing part 100 may include the cover 120. The cover 120 may be disposed in the base 110. The cover 120 may be disposed on the base 110. The cover 120 may be coupled to the base 110. The cover 120 may be fixed to the base 110. The cover 120 may accommodate the OIS-x carrier 210 therein. The cover 120 may accommodate the OIS-y carrier 310 and the AF carrier 410 therein. The cover 120 may be a shielding member. The cover 120 may be a shielding can.

[0095] The cover 120 may include an upper plate 121. The upper plate 121 may be disposed on the moving part. The upward movement of the moving part may be restricted by the moving part contacting the upper plate 121. The upper plate 121 may include a hole through which light passes.

[0096] The cover 120 may include a side panel 122. The side panel 122 may extend from the upper panel 121. The side panel 122 may be disposed in the base 110. The side panel 122 may be disposed on a step portion protruding from a lower end portion of an outer side surface of the base 110. The side panel 122 may include a plurality of side panels. The side panel 122 may include four side panels. The side panel 122 may include a first side panel and a second side panel disposed opposite to each other and a third side panel and a fourth side panel disposed opposite to each other.

[0097] The lens driving device 10 may include a moving part. The moving part may be arranged in the fixed part 100. The moving part may be arranged in the fixed part 100. The moving part may be arranged in the fixed part 100. The moving part may be movably arranged on the fixed part 100. The moving part may be moved against the fixed part 100 by the driving part. The moving part may move during AF driving. The moving part may move during OIS driving. The lens may be coupled to the moving part.

[0098] The lens driving device 10 may include an OIS moving part. The moving part may include an OIS moving part. The OIS moving part may be arranged in the fixed part 100. The OIS moving part may be arranged in the fixed part 100. The OIS moving part may be arranged on the fixed part 100. The OIS moving part may be arranged between the fixed part 100 and the AF moving part 400. The OIS moving part may be movably arranged. The OIS moving part may be moved in a direction perpendicular to the optical axis by the OIS driving part against the fixed part 100. The OIS moving part may move during OIS driving.

[0099] The lens driving device 10 may include an OIS-x moving part 200. The OIS moving part may include the OIS-x moving part 200. The OIS-x moving part 200 may be arranged in the fixed part 100. The OIS-x moving part 200 may be arranged inside the fixed part 100. The OIS-x moving part 200 may be arranged on the fixed part 100. The OIS-x moving part 200 may be arranged between the fixed part 100 and the AF moving part 400. The OIS-x moving part 200 may be arranged between the fixed part 100 and the OIS-y moving part 300. The OIS-x moving part 200 may be movably arranged. The OIS-x moving part 200 can be moved in the x-axis direction perpendicular to the optical axis against the fixed part 100 by the OIS-x driving part 500. The OIS-x moving part 200 can move during OIS driving.

[0100] The lens driving device 10 may include an OIS-x carrier 210. The OIS-x moving part 200 may include an OIS-x carrier 210. The OIS-x carrier 210 may be an "OIS-x holder". The OIS-x carrier 210 may be a "housing". The OIS-x carrier 210 may be disposed outside the AF carrier 410. The OIS-x carrier 210 may be disposed within the base 110. The OIS-x carrier 210 may be disposed on the base 110. The OIS-x carrier 210 may be disposed within the cover 140. The OIS-x carrier 210 may be disposed between the base 110 and the OIS-y carrier 310. The OIS-x carrier 210 may be disposed between the AF carrier 410 and the base 110. The OIS-x carrier 210 may be disposed between the AF carrier 410 and the cover 120. The OIS-x carrier 210 may be movably disposed in the x-axis direction perpendicular to the optical axis.

[0101] The first moving part 200 may include a first portion disposed on the outer side of the fixed part 100. At least a portion of the first moving part 200 may be disposed on the outer side of the fixed part 100. The AF guide ball 830 may be disposed between the first portion of the first moving part 200 and the fixed part 100. The OIS-x carrier 210 may include a first portion disposed on the outer side of the base 110. At least a portion of the OIS-x carrier 210 may be disposed on the outer side of the pillar portion of the base 110. The OIS-x carrier 210 may include a first portion disposed on the outer side of the pillar portion of the base 110. The pillar portion of the base 110 may extend upward from the lower plate 111 of the base 110.

[0102] The OIS-x carrier 210 may include a groove 211. The groove 211 may be an "OIS-x guide ball accommodating groove". The groove 211 may be formed on a side plate of the OIS-x carrier 210. The groove 211 may be formed on an inner surface of a side plate of the OIS-x carrier 210. The OIS-x guide ball 810 may be disposed in the groove 211. The groove 211 may be in direct contact with the OIS-x guide ball 810. The groove 211 may be disposed in a direction perpendicular to the optical axis. The groove 211 may be disposed along the x-axis direction. The groove 211 may guide the OIS-x guide ball 810 to move in the x-axis direction. The groove 211 may include a plurality of grooves. The groove 211 may include four groove portions. The groove 211 may include a first groove portion that contacts the OIS-x guide ball 810 at two points and a second groove portion that contacts the OIS-x guide ball 810 at one point. In a modified embodiment, both the first groove portion and the second groove portion may contact the OIS-x guide ball 810 at two points.

[0103] The OIS-x carrier 210 may include a groove 212. The groove 212 may be an "OIS-y guide ball accommodating groove". The groove 212 may be formed on a side plate of the OIS-x carrier 210. The groove 212 may be formed on an inner surface of a side plate of the OIS-x carrier 210. The OIS-y guide ball 820 may be disposed in the groove 212. The groove 212 may be in direct contact with the OIS-y guide ball 820. The groove 212 may be disposed in a direction perpendicular to the optical axis. The groove 212 may be disposed in the y-axis direction. The groove 212 may guide the OIS-y guide ball 820 to move in the y-axis direction. The groove 212 may include a plurality of grooves. The groove 212 may include four groove portions. The groove 212 may include a first groove portion that contacts the OIS-y guide ball 820 at two points and a second groove portion that contacts the OIS-y guide ball 820 at one point. In a modified embodiment, both the first groove portion and the second groove portion may contact the OIS-y guide ball 820 at two points.

[0104] The OIS-x carrier 210 may include a first side plate and a second side plate, the OIS-x guide balls 810 being disposed on the first side plate, and the OIS-y guide balls 820 being disposed on the second side plate.

[0105] The OIS-x carrier 210 may include a metal plate 213. The metal plate 213 may be a "reinforcement member". The metal plate 213 may be provided to enhance the strength of the OIS-x carrier 210. The metal plate 213 may be disposed on an upper surface of the OIS-x carrier 210. The metal plate 213 may be disposed on the OIS-x carrier 210 by insert injection molding.

[0106] The OIS-x carrier 210 may include a groove 214. The groove 214 may be a “metal plate receiving groove.” The metal plate 213 may be disposed in the groove 214. The groove 214 may be concavely formed on the upper surface of the OIS-x carrier 210. The groove 214 may include a shape corresponding to the metal plate 213.

[0107] The OIS-x carrier 210 may include a groove 215. The groove 215 may be a "coil accommodating groove". The groove 215 may be formed on a side plate of the OIS-x carrier 210. The coil may be disposed in the groove 215. The OIS-x coil 520 may be disposed in the groove 215. The OIS-y coil 620 may be disposed in the groove 215.

[0108] The OIS-x carrier 210 may include a hole 216. The hole 216 may be a "sensor receiving hole". The hole 216 may be formed on an upper plate of the OIS-x carrier 210. A sensor may be disposed in the hole 216. The OIS-x sensor 530 may be disposed in the hole 216. The OIS-y sensor 630 may be disposed in the hole 216.

[0109] Hereinafter, one of the “groove 211”, “groove 212”, “groove 214” and “groove 215” of the OIS-x carrier 210 is referred to as the “first groove”, another is referred to as the “second groove”, another is referred to as the “third groove”, and another may be referred to as the “fourth groove”.

[0110] The lens driving device 10 may include an OIS-y moving part 300. The OIS moving part may include the OIS-y moving part 300. The OIS-y moving part 300 may be disposed on the fixed part 100. The OIS-y moving part 300 may be disposed inside the fixed part 100. The OIS-y moving part 300 may be disposed on the fixed part 100. The OIS-y moving part 300 may be disposed outside the AF moving part 400. The OIS-y moving part 300 may be disposed between the AF moving part 400 and the OIS-x moving part 200. The OIS-y moving part 300 may be disposed inside the OIS-x moving part 200. The OIS-y moving part 300 may be movably disposed. The OIS-y moving part 300 can move in the y-axis direction perpendicular to both the optical axis and the x-axis by the OIS-y driving part 600 against the fixed part 100 and the OIS-x moving part 200. When the OIS is driven, the OIS-y moving part 300 can move.

[0111] The lens driving device 10 may include an OIS-y carrier 310. The OIS-y moving part 300 may include an OIS-y carrier 310. The OIS-y carrier 310 may be an "OIS-y holder". The OIS-y carrier 310 may be a "housing". The OIS-y carrier 310 may be disposed within the OIS-x carrier 210. The OIS-y carrier 310 may be disposed outside the AF carrier 410. The OIS-y carrier 310 may be disposed between the AF carrier 410 and the OIS-x carrier 210. The OIS-y carrier 310 may be disposed within the base 110. The OIS-y carrier 310 may be disposed on the base 110. The OIS-y carrier 310 may be disposed within the cover 140. The OIS-y carrier 310 may be movably disposed in the y-axis direction perpendicular to both the optical axis and the x-axis.

[0112] The OIS-y carrier 310 may include a groove 311. The groove 311 may be an "OIS-y guide ball accommodating groove". The groove 311 may be formed on a side plate of the OIS-y carrier 310. The groove 311 may be formed on an outer surface of a side plate of the OIS-y carrier 310. The OIS-y guide ball 820 may be disposed in the groove 311. The groove 311 may be in direct contact with the OIS-y guide ball 820. The groove 311 may be disposed in a direction perpendicular to the optical axis. The groove 311 may be disposed in the y-axis direction. The groove 311 may guide the OIS-y guide ball 820 to move in the y-axis direction. The groove 311 may include a plurality of grooves. The groove 311 may include four groove portions. The groove 311 may include a first groove portion that contacts the OIS-y guide ball 820 at two points and a second groove portion that contacts the OIS-y guide ball 820 at one point. In a modified embodiment, both the first groove portion and the second groove portion may contact the OIS-y guide ball 820 at two points.

[0113] The OIS-y carrier 310 may include a groove 312. The groove 312 may be an "AF guide ball accommodating groove". The groove 311 may be formed on a side plate of the OIS-y carrier 310. The groove 311 may be formed on an inner surface of a side plate of the OIS-y carrier 310. The AF guide ball 830 may be disposed in the groove 312. The groove 312 may be in direct contact with the AF guide ball 830. The groove 312 may be disposed in the optical axis direction. The groove 312 may guide the AF guide ball 830 to move in the optical axis direction. The groove 312 may include a plurality of grooves. The groove 312 may include two grooves. The two grooves may be disposed parallel to each other. The groove 312 may include a first groove that contacts the AF guide ball 830 at two points and a second groove that contacts the AF guide ball 830 at one point. In a modified embodiment, both the first groove and the second groove may contact the AF guide ball 830 at two points.

[0114] The OIS-y carrier 310 may include a metal plate 313. The metal plate 313 may be a "reinforcement member". The metal plate 313 may be provided to enhance the strength of the OIS-y carrier 310. The metal plate 313 may be disposed on an upper surface of the OIS-y carrier 310. The metal plate 313 may be disposed in the OIS-y carrier 310 by insert molding.

[0115] The OIS-y carrier 310 may include a groove 314. The groove 314 may be a “metal plate receiving groove”. The metal plate 313 may be disposed in the groove 314. The groove 314 may be concavely formed on the upper surface of the OIS-y carrier 310. The groove 314 may include a shape corresponding to the metal plate 313.

[0116] Hereinafter, one of the “groove 311 ,” “groove 312 ,” and “groove 314 ” of the OIS-y carrier 310 is referred to as a “first groove,” another is referred to as a “second groove,” and another may be referred to as a “third groove.”

[0117] The lens driving device 10 may include an AF moving part 400. The moving part may include the AF moving part 400. The AF moving part 400 may be disposed on the fixed part 100. The AF moving part 400 may be disposed in the fixed part 100. The AF moving part 400 may be disposed on the fixed part 100. The AF moving part 400 may be disposed in the OIS moving part. The AF moving part 400 may be disposed in the OIS-x moving part 200. The AF moving part 400 may be disposed in the OIS-y moving part 300. The AF moving part 400 may be movably disposed. The AF moving part 400 may be moved in the optical axis direction by the AF driving part 700 against the fixed part 100. The AF moving part 400 may be moved in the optical axis direction by the AF driving part 700 against the OIS moving part. The AF moving part 400 is capable of moving during AF driving.

[0118] The lens driving device 10 may include an AF carrier 410. The AF moving part 400 may include an AF carrier 410. The AF carrier 410 may be an "AF holder". The AF carrier 410 may be a "bobbin". The AF carrier 410 may be disposed in the base 110. The AF carrier 410 may be disposed on the base 110. The AF carrier 410 may be disposed in the cover 120. The AF carrier 410 may be disposed in the OIS-x carrier 210. The AF carrier 410 may be disposed in the OIS-y carrier 310. The AF carrier 410 may be movably disposed. The AF carrier 410 may be movably disposed to move in the optical axis direction.

[0119] The AF carrier 410 may include a groove 411. The groove 411 may be an "AF guide ball accommodating groove". The groove 411 may be formed on a side surface of the AF carrier 410. The groove 411 may be formed on an outer side surface of the AF carrier 410. The AF guide ball 830 may be disposed in the groove 411. The groove 411 may be in direct contact with the AF guide ball 830. The groove 411 may be disposed along the optical axis direction. The groove 411 may guide the AF guide ball 830 to move in the optical axis direction. The groove 411 may include a plurality of grooves. The groove 411 may include two grooves. The two grooves may be arranged parallel to each other. The groove 411 may include a first groove that contacts the AF guide ball 830 at two points and a second groove that contacts the AF guide ball 830 at one point. In a modified embodiment, both the first groove and the second groove may contact the AF guide ball 830 at two points.

[0120] The AF carrier 410 may include a groove. The AF magnet 710 may be disposed in the groove. When viewed from the outside, the AF magnet 710 may be disposed between two grooves 411.

[0121] The lens driving device 10 may include a ball cover 412. The ball cover 412 may be disposed on the AF guide ball 830. The ball cover 412 may overlap with the AF guide ball 830 in the optical axis direction. The ball cover 412 may prevent the AF guide ball 830 from being separated. The ball cover 412 may be disposed on the upper surface of the AF carrier 410. The ball cover 412 may be disposed at a position corresponding to the groove 411 of the AF carrier 410. The ball cover 412 may be formed of a metal plate. The ball cover 412 may be formed in a shape that does not interfere with the OIS-y carrier 310.

[0122] The lens driving device 10 may include a driving component. The driving component may move the moving component against the fixed component 100. The driving component may include an AF driving component 700. The driving component may include an OIS driving component. The driving component may include an OIS-x driving component 500. The driving component may include an OIS-y driving component 600. The driving component may include a coil and a magnet.

[0123] The lens driving device 10 may include an OIS driving component. The OIS driving component may move the OIS moving component in a direction perpendicular to the optical axis. The OIS driving component may move the OIS-x carrier 210 and the OIS-y carrier 310 in a direction perpendicular to the optical axis. The OIS driving component may move the OIS-x carrier 210 and the OIS-y carrier 310 in a direction perpendicular to the optical axis by electromagnetic force. The OIS driving component may include a magnet and a coil.

[0124] The lens driving device 10 may include an OIS-x driving component 500. The OIS driving component may include the OIS-x driving component 500. The OIS-x driving component 500 is capable of moving the OIS-x moving component 200 in the x-axis direction perpendicular to the optical axis direction. The OIS-x driving component 500 is capable of moving the OIS-x carrier 210 in the x-axis direction. The OIS-x driving component 500 is capable of moving the OIS-x carrier 210 and the OIS-y carrier 310 in the x-axis direction perpendicular to the optical axis. The OIS-x driving component 500 is capable of moving the OIS-x carrier 210 and the OIS-y carrier 310 in the x-axis direction perpendicular to the optical axis by electromagnetic force. The OIS-x driving component 500 may include a coil and a magnet.

[0125] In this embodiment, the OIS-x magnet 510 and the OIS-x coil 520 enable the OIS moving part to move in the x-axis direction perpendicular to the optical axis direction. Through the interaction between the OIS-x coil 520 and the OIS-x magnet 510, the OIS-x carrier 210 and the OIS-y carrier 310 can move in the x-axis direction perpendicular to the optical axis direction. The OIS-x magnet 510, the OIS-x carrier 210 and the OIS-y carrier 310 can move integrally in the x-axis direction.

[0126] The lens driving device 10 may include an OIS-x magnet 510. The OIS driving component may include an OIS-x magnet 510. The OIS-x magnet 510 may be an “OIS-x magnet”. The OIS-x magnet 510 may be a permanent magnet. The OIS-x magnet 510 may be disposed in the fixing component 100. The OIS-x magnet 510 may be disposed in the base 110. The OIS-x magnet 510 may be fixed to the base 110. The OIS-x magnet 510 may be coupled to the base 110. The OIS-x magnet 510 may be attached to the base 110 with an adhesive. The OIS-x magnet 510 may be disposed on a protruding portion 112 of the base 110. The OIS-x magnet 510 may be spaced apart from the AF magnet 710. The OIS-x magnet 510 may be disposed within the cover 120.

[0127] The OIS-x magnet 510 may interact with the OIS-x coil 520. The OIS-x magnet 510 may electromagnetically interact with the OIS-x coil 520. The OIS-x magnet 510 may be disposed at a position corresponding to the OIS-x coil 520. The OIS-x magnet 510 and the OIS-x coil 520 may face each other. The OIS-x magnet 510 may face the OIS-x coil 520. The OIS-x magnet 510 may overlap the OIS-x coil 520 in a direction perpendicular to the optical axis. The OIS-x magnet 510 may overlap the OIS-x coil 520 in the y-axis direction. The OIS-x magnet 510 may move the OIS-x coil 520 in the x-axis direction.

[0128] The OIS-x magnet 510 may be a quadrupole magnet. The OIS-x magnet 510 may include a quadrupole magnetized magnet. The OIS-x magnet 510 may include a first magnet portion including an N pole and an S pole, and a second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a horizontal direction. The first magnet portion and the second magnet portion may be spaced apart in a horizontal direction. A neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0129] The lens driving device 10 may include an OIS-x coil 520. The OIS driving component may include an OIS-x coil 520. The OIS-x coil 520 may interact with the OIS-x magnet 510. The OIS-x coil 520 may move in the x-axis direction perpendicular to the optical axis. The OIS-x coil 520 may move in the x-axis direction by interacting with the OIS-x magnet 510. The OIS-x coil 520 and the OIS-x magnet 510 may face each other. The OIS-x coil 520 may face the OIS-x magnet 510. The OIS-x coil 520 may be disposed at a position corresponding to the OIS-x magnet 510. The OIS-x coil 520 may overlap with the OIS-x magnet 510 in a direction perpendicular to the optical axis. The OIS-x coil 520 may overlap with the OIS-x magnet 510 in the y-axis direction. The OIS-x coil 520 may be disposed on the outer substrate 910. The OIS-x coil 520 may be disposed in the OIS-x moving part 200. The OIS-x coil 520 may be disposed in the OIS-x carrier 210. The OIS-x coil 520 may be disposed in the OIS-x carrier 210 through the inner substrate 720. The OIS-x coil 520 may move integrally with the OIS-x carrier 210.

[0130] In the present embodiment, the OIS-x coil 520 can move together with the OIS-x moving part 200. In this case, the weight of the moving part is lighter than that of the comparative example in which the OIS-x magnet 510 is provided in the OIS-x moving part 200 and moves together, so the current consumed for driving the OIS-x can be reduced.

[0131] The lens driving device 10 may include an OIS-x sensor 530. The OIS driving component may include the OIS-x sensor 530. The OIS-x sensor 530 may be disposed in the outer substrate 910. The OIS-x sensor 530 may be disposed in the OIS-x carrier 210. The OIS-x sensor 530 may be disposed in the OIS-x moving component 200. The OIS-x sensor 530 may include a Hall sensor. The OIS-x sensor 530 may detect the OIS-x magnet 510. The OIS-x sensor 530 may detect the magnetic force of the OIS-x magnet 510. The OIS-x sensor 530 may be disposed on the upper side of the OIS magnet 520. The OIS-x sensor 530 may overlap with the OIS magnet 520 in the optical axis direction. In a modified embodiment, the OIS-x sensor 530 may be disposed in the OIS-x coil 520. At this time, the OIS-x sensor 530 may overlap with the OIS-x coil 520 in the optical axis direction. The OIS-x sensor 530 may face the OIS-x magnet 510. The OIS-x sensor 530 may be disposed at a position corresponding to the OIS-x magnet 510. The OIS-x sensor 530 may detect movement of the OIS-x magnet 510. The movement amount or position of the OIS-x magnet 510 detected by the OIS-x sensor 530 may be used for feedback of hand shake correction drive in the x-axis direction.

[0132] The lens driving device 10 may include an OIS-x yoke 540. The OIS-x yoke 540 may be disposed in the OIS-x magnet 510. The OIS-x yoke 540 may be disposed between the OIS-x magnet 510 and the OIS-x carrier 210. The OIS-x yoke 540 may prevent magnetic flux leakage of the OIS-x magnet 510 and enhance interaction with the OIS-x coil 520.

[0133] The lens driving device 10 may include an OIS-y driving component 600. The OIS driving component may include an OIS-y driving component 600. The OIS-y driving component 600 may enable the OIS-y moving component 300 to move in a y-axis direction perpendicular to both the optical axis direction and the x-axis direction. The OIS-y driving component 600 may enable the OIS-y carrier 310 to move in a y-axis direction perpendicular to both the optical axis and the x-axis direction. The OIS-y driving component 600 may enable the OIS-y carrier 310 to move in a y-axis direction perpendicular to both the optical axis and the x-axis direction by electromagnetic force. The OIS-y driving component 600 may include a coil and a magnet.

[0134] In this embodiment, the OIS-y magnet 610 and the OIS-y coil 620 enable the OIS moving part to move in the y-axis direction perpendicular to the optical axis direction and the x-axis direction. Through the interaction between the OIS-Y coil 620 and the OIS-Y magnet 610, the OIS-Y carrier 310 can move in the y-axis direction perpendicular to both the optical axis direction and the x-axis direction. The OIS-y magnet 610 and the OIS-y carrier 310 can move integrally in the y-axis direction. At this time, the AF carrier 410 can also move integrally with the OIS-y carrier 310 in the y-axis direction.

[0135] The lens driving device 10 may include an OIS-y magnet 610. The OIS-y driving part 600 may include an OIS-y magnet 610. The OIS-y magnet 610 may be an “OIS-y magnet”. The OIS-y magnet 610 may be a permanent magnet. The OIS-y magnet 520 may be disposed in the OIS moving part. The OIS-y magnet 610 may be spaced apart from the OIS-x magnet 510. The OIS-y magnet 610 may be spaced apart from the AF magnet 710. The OIS-y magnet 610 may be disposed in the OIS-y moving part 300. The OIS-y magnet 610 may be disposed on the OIS-y carrier 310. The OIS-y magnet 610 may be disposed in the lower plate of the OIS-y carrier 310. The OIS-y magnet 610 may be disposed on the lower plate of the OIS-y carrier 310. The OIS-y magnet 610 may be disposed on the upper surface of the lower plate of the OIS-y carrier 310. The OIS-y magnet 610 may be fixed to the OIS-y carrier 310. The OIS-y magnet 610 may be coupled to the OIS-y carrier 310. The OIS-y magnet 610 may be attached to the OIS-y carrier 310 with an adhesive. The OIS-y magnet 610 may be disposed within the cover 120.

[0136] The OIS-y magnet 610 may interact with the OIS-y coil 620. The OIS-y magnet 610 may electromagnetically interact with the OIS-y coil 620. The OIS-y magnet 610 may be arranged corresponding to the OIS-y coil 620. The OIS-y magnet 610 and the OIS-y coil 620 may face each other. The OIS-y magnet 610 may face the OIS-y coil 620. The OIS-y magnet 610 may overlap the OIS-y coil 620 in a direction perpendicular to the optical axis. The OIS-y magnet 610 may overlap the OIS-y coil 620 in the x-axis direction. The OIS-y magnet 610 may move in the y-axis direction.

[0137] The OIS-y magnet 610 may be a quadrupole magnet. The OIS-y magnet 610 may include a quadrupole magnetized magnet. The OIS-y magnet 610 may include a first magnet portion including an N pole and an S pole, and a second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a horizontal direction. The first magnet portion and the second magnet portion may be spaced apart in a horizontal direction. A neutral portion may be arranged between the first magnet portion and the second magnet portion.

[0138] The lens driving device 10 may include an OIS-y coil 620. The OIS-y driving part 600 may include an OIS-y coil 620. The OIS-y coil 620 may interact with the OIS-y magnet 610. The OIS-y coil 620 may be disposed at an opposite side of the AF coil 720 relative to the optical axis. The OIS-y coil 620 may move the OIS-y magnet 610 in a y-axis direction perpendicular to both the optical axis and the x-axis. The OIS-y coil 620 may move the OIS-y magnet 610 in the y-axis direction by interacting with the OIS-y magnet 610. The OIS-y coil 620 and the OIS-y magnet 610 may face each other. The OIS-y coil 620 may face the OIS-y magnet 610. The OIS-y coil 620 may be disposed at a position corresponding to the OIS-y magnet 610. The OIS-y coil 620 may overlap the OIS-y magnet 610 in a direction perpendicular to the optical axis. The OIS-y coil 620 may overlap the OIS-y magnet 610 in the x-axis direction. The OIS-y coil 620 may be disposed in the outer substrate 910. The OIS-y coil 620 may be disposed in the OIS-x carrier 210. The OIS-y coil 620 may be disposed in the OIS-x carrier 210 through the outer substrate 910. The OIS-y coil 620 may be disposed in the OIS-x moving part 200. The OIS-y coil 620 may move integrally with the OIS-x moving part 200.

[0139] In the present embodiment, the OIS-y coil 620 is capable of moving together with the OIS-x moving part 200. The OIS-y coil 620 may move in the x-axis direction together with the OIS-x moving part 200. During the OIS-x driving process, the OIS-y coil 620 may move in the x-axis direction together with the OIS-x moving part 200. The OIS-y coil 620 may be disposed on the OIS-x moving part 200. The OIS-y coil 620 may be fixed to the OIS-x moving part 200. The OIS-y coil 620 may be coupled to the OIS-x moving part 200.

[0140] The lens driving device 10 may include an OIS-y sensor 630. The OIS-y driving part 600 may include the OIS-y sensor 630. The OIS-y sensor 630 may be disposed in the outer substrate 910. The OIS-y sensor 630 may be disposed in the OIS-x carrier 210. The OIS-y sensor 630 may be disposed in the OIS-x moving part 200. The OIS-y sensor 630 may include a Hall sensor. The OIS-y sensor 630 may detect the OIS-y magnet 610. The OIS-y sensor 630 may detect the magnetic force of the OIS-y magnet 610. The OIS-y sensor 630 may be disposed on the upper side of the OIS-y magnet 620. The OIS-y sensor 630 may overlap with the OIS-y magnet 620 in the optical axis direction. In a modified embodiment, the OIS-y sensor 630 may be disposed in the OIS-y coil 620. At this time, the OIS-y sensor 630 may overlap with the OIS-y coil 620 in the optical axis direction. The OIS-y sensor 630 may face the OIS-y magnet 610. The OIS-y sensor 630 may be disposed at a position corresponding to the OIS-y magnet 610. The OIS-y sensor 630 may detect movement of the OIS-y magnet 610. The movement amount or position of the OIS-y magnet 610 detected by the OIS-y sensor 630 may be used for feedback of hand shake correction drive in the y-axis direction.

[0141] The lens driving device 10 may include an OIS-y yoke 640. The OIS-y yoke 640 may be disposed in the OIS-y magnet 610. The OIS-y yoke 640 may be disposed between the OIS-y magnet 610 and the OIS-y carrier 310. The OIS-y yoke 640 may prevent magnetic flux leakage of the OIS-y magnet 610 and enhance interaction with the OIS-y coil 620.

[0142] The lens driving device 10 may include an AF driving component 700. The AF driving component 700 may move the AF moving component 400 in the optical axis direction. The AF driving component 700 may move the AF carrier 410 in the optical axis direction. The AF driving component 700 may move the AF carrier 410 in the optical axis direction by electromagnetic force. The AF driving component 700 may include a coil and a magnet.

[0143] In the present embodiment, the AF carrier 410 can move in the optical axis direction by the interaction between the AF coil 720 and the AF magnet 710. The AF magnet 710 and the AF carrier 410 can move integrally in the optical axis direction.

[0144] The lens driving device 10 may include an AF magnet 710. The AF driving component 700 may include an AF magnet 710. The AF magnet 710 may be an "AF magnet". The AF magnet 710 may be a permanent magnet. The AF magnet 710 may be disposed in the AF moving component 400. The AF magnet 710 may be disposed in the AF carrier 410. The AF magnet 710 may be disposed on the outer side surface of the AF carrier 410. The AF magnet 710 may be fixed to the AF carrier 410. The AF magnet 710 may be coupled to the AF carrier 410. The AF magnet 710 may be attached to the AF carrier 410 with an adhesive. The AF magnet 710 may be disposed within the cover 120.

[0145] The AF magnet 710 may interact with the AF coil 720. The AF magnet 710 may electromagnetically interact with the AF coil 720. The AF magnet 710 may be disposed at a position corresponding to the AF coil 720. The AF magnet 710 and the AF coil 720 may face each other. The AF magnet 710 may face the AF coil 720. The AF magnet 710 may overlap with the AF coil 720 in a direction perpendicular to the optical axis. The AF magnet 710 may overlap with the AF coil 720 in the y-axis direction.

[0146] In the present embodiment, the outer surface of the AF magnet 710 may be disposed parallel to the second side plate of the cover 120. The AF magnet 710 may be disposed parallel to the second side plate of the cover 120.

[0147] The AF magnet 710 may be a quadrupole magnet. The AF magnet 710 may include a quadrupole magnetized magnet. The AF magnet 710 may include a first magnet portion including an N pole and an S pole, and a second magnet portion including an N pole and an S pole. The first magnet portion and the second magnet portion may be arranged in a vertical direction. The first magnet portion and the second magnet portion may be spaced apart in the vertical direction. The first magnet portion and the second magnet portion may be spaced apart in the optical axis direction. A neutral portion may be provided between the first magnet portion and the second magnet portion.

[0148] The lens driving device 10 may include an AF coil 720. The AF driving part 700 may include an AF coil 720. The AF coil 720 may interact with the AF magnet 710. The AF coil 720 and the AF magnet 710 may face each other. The AF coil 720 may face the AF magnet 710. The AF coil 720 may be disposed at a position corresponding to the AF magnet 710. The AF coil 720 may overlap the AF magnet 710 in a direction perpendicular to the optical axis. The AF coil 720 may be disposed in the inner substrate 920. The AF coil 720 may be disposed in the OIS-y carrier 310. The AF coil 720 may be disposed on the OIS-y carrier 310 through the inner substrate 920. The AF coil 720 may move integrally with the OIS-y carrier 310. The AF coil 720 may be disposed in the OIS-y moving part 300. The AF coil 720 may move integrally with the OIS-y moving part 300.

[0149] The lens driving device 10 may include an AF sensor 730. The AF driving part 700 may include the AF sensor 730. The AF sensor 730 may be a Hall sensor. The AF sensor 730 may be disposed in the inner substrate 720. The AF sensor 730 may detect the AF magnet 710. The AF sensor 730 may detect the movement of the AF magnet 710. The movement amount or position of the AF magnet 710 detected by the AF sensor 730 may be used for feedback of auto focus driving. The AF sensor 730 may be disposed in the OIS-y moving part 300. The AF sensor 730 may be disposed in the OIS-y carrier 310. The AF sensor 730 may be disposed on the OIS-y carrier 310 through the inner substrate 720. The AF sensor 730 may move together with the OIS-y moving part 300.

[0150] The AF sensor 730 may be a driver IC. The driver IC may include a sensing unit. The sensing unit may include a Hall element (Hall IC). The driver IC may be electrically connected to the AF coil 720. The driver IC may supply current to the AF coil 720.

[0151] The AF sensor 730 may be disposed inside the AF coil 720. The AF sensor 730 may overlap with a neutral portion of the AF magnet 710 in a direction perpendicular to the optical axis. In a modified embodiment, the AF sensor 730 may be disposed outside the AF coil 720.

[0152] The lens driving device 10 may include an AF yoke 740. The AF yoke 740 may be disposed at a position corresponding to the AF magnet 710. The AF yoke 740 may be disposed in the AF magnet 710. The AF yoke 740 may be disposed between the AF magnet 710 and the AF carrier 410. The AF yoke 740 may be disposed on an inner surface of the AF magnet 710. The AF yoke 740 may be disposed on an outer surface of the AF carrier 410. Thus, the AF yoke 740 may minimize the magnetic flux leakage of the AF magnet 710 and increase the electromagnetic interaction force between the AF magnet 710 and the AF coil 720.

[0153] When viewed from above, the OIS-x coil 520, the OIS-x magnet 510, the AF magnet 710, and the AF coil 720 may be sequentially arranged on a virtual straight line. When viewed from above, the OIS-x coil 520, the OIS-x magnet 510, the AF magnet 710, and the AF coil 720 may be sequentially arranged. When viewed from above, the OIS-x coil 520, the OIS-x magnet 510, the AF magnet 710, and the AF coil 720 may be sequentially arranged in the y-axis direction. When viewed from above, the OIS-x coil 520, the OIS-x magnet 510, the AF magnet 710, and the AF coil 720 may overlap in the y-axis direction.

[0154] In this embodiment, the cover 120 may include a first side plate and a second side plate disposed opposite to each other, and a third side plate and a fourth side plate disposed opposite to each other. The OIS-x driving component 500 may be disposed at a position corresponding to the first side plate of the cover 120, the AF driving component 700 may be disposed at a position corresponding to the third side plate of the cover 120, and the OIS-y driving component 600 may be disposed at a position corresponding to the second side plate of the cover 120.

[0155] The lens driving device 10 may include a guide member. The guide member may include a ball. The guide member may include a pin. The guide member may include a cylindrical member. The guide member may guide the movement of the moving part against the fixed part 100 in a specific direction.

[0156] The lens driving device 10 may include an OIS-x guide ball 810. The OIS-x guide ball 810 may guide the movement of the OIS-x moving part 200 against the fixed part 100 in the x-axis direction. The OIS-x guide ball 810 may guide the movement of the OIS-x carrier 210 against the base 110 in the x-axis direction. The OIS-x guide ball 810 may be disposed between the fixed part 100 and the OIS-x moving part 200. The OIS-x guide ball 810 may be disposed between the fixed part 100 and the OIS-x moving part 200 in the y-axis direction. The OIS-x guide ball 810 may be disposed between the base 110 and the OIS-x carrier 210. The OIS-x guide ball 810 may be disposed between the base 110 and the OIS-x carrier 210 in the y-axis direction. The entire area from the lower end to the upper end of the OIS-x guide ball 810 may overlap both the base 110 and the OIS-x carrier 210 in the y-axis direction. The entire area of ​​the OIS-x guide ball 810 may overlap both the base 110 and the OIS-x carrier 210 in the y-axis direction. The OIS-x guide ball 810 may be disposed between the outer side surface of the base 110 and the inner side surface of the OIS-x carrier 210. When viewed from the inner side of the OIS-x carrier 210, the OIS-x guide ball 810 may overlap the OIS-x magnet 510 in the horizontal direction.

[0157] The OIS-x guide ball 810 may be disposed in the groove 112 of the base 110. The OIS-x guide ball 810 may be disposed in the groove 211 of the OIS-x carrier 210. The OIS-x guide ball 810 may include a first ball that contacts the base 110 and the OIS-x carrier 210 at four points, and a second ball that contacts the base 110 and the OIS-x carrier 210 at three points. The OIS-x guide ball 810 may be ball-shaped. The OIS-x guide ball 810 may be formed of metal. Grease may be applied to the surface of the OIS-x guide ball 810.

[0158] The OIS-x guide ball 810 may include a plurality of balls. The OIS-x guide ball 810 may include four balls. Two OIS-x guide balls 810 may be disposed on one side of the OIS-x magnet 510, and the remaining two OIS-x guide balls 810 may be disposed on the other side of the OIS-x magnet 510.

[0159] The lens driving device 10 may include an OIS-y guide ball 820. The OIS-y guide ball 820 may guide the movement of the OIS-y carrier 310 against the OIS-x carrier 210 in the y-axis direction. The OIS-y guide ball 820 may be disposed between the OIS-x moving part 200 and the OIS-y moving part 300. The OIS-y guide ball 820 may be disposed between the OIS-x moving part 200 and the OIS-y moving part 300 in the x-axis direction. The OIS-y guide ball 820 may be disposed between the OIS-x carrier 210 and the OIS-y carrier 310. The OIS-y guide ball 820 may be disposed between the OIS-x carrier 210 and the OIS-y carrier 310 in the x-axis direction. The entire area from the lower end to the upper end of the OIS-y guide ball 820 may overlap with both the OIS-x carrier 210 and the OIS-y carrier 310 in the x-axis direction. The OIS-y guide ball 820 may be disposed between the inner surface of the OIS-x carrier 210 and the outer surface of the OIS-y carrier 310. The OIS-y guide ball 820 may overlap the OIS-y magnet 610 in a horizontal direction when viewed from the outer side of the OIS-y carrier 310. Here, the horizontal direction may be any direction perpendicular to the optical axis.

[0160] A portion of the OIS-y guide ball 820 may overlap the OIS-x carrier 210 in the y-axis direction. Another portion of the OIS-y guide ball 820 may overlap the OIS-y carrier 310 in the y-axis direction.

[0161] The OIS-y guide ball 820 may be disposed in the groove 212 of the OIS-x carrier 210. The OIS-y guide ball 820 may be disposed in the groove 311 of the OIS-y carrier 310. The OIS-y guide ball 820 may include a first ball that contacts the OIS-x carrier 210 and the OIS-y carrier 310 at four points, and a second ball that contacts the OIS-x carrier 210 and the OIS-y carrier 310 at three points. The OIS-y guide ball 820 may be ball-shaped. The OIS-y guide ball 820 may be formed of metal. Grease may be applied to the surface of the OIS-y guide ball 820.

[0162] The OIS-y guide ball 820 may include a plurality of balls. The OIS-y guide ball 820 may include four balls. Two OIS-y guide balls 820 may be disposed on one side of the OIS-y magnet 610, and the remaining two OIS-y guide balls 820 may be disposed on the other side of the OIS-y magnet 610.

[0163] The lens driving device 10 may include an AF guide ball 830. The AF guide ball 830 may guide the movement of the AF carrier 410 against the OIS-y carrier 310 in the optical axis direction. The AF guide ball 830 may be disposed between the OIS-y moving part 300 and the AF moving part 400. The AF guide ball 830 may be disposed between the OIS-y moving part 300 and the AF moving part 400 in the y-axis direction. The AF guide ball 830 may be disposed between the OIS-y carrier 310 and the AF carrier 410. The AF guide ball 830 may be disposed between the OIS-y carrier 310 and the AF carrier 410 in the y-direction. The AF guide ball 830 may be disposed in the groove 312 of the OIS-y carrier 310. The AF guide ball 830 may be disposed in the groove 411 of the AF carrier 410. The AF guide ball 830 may be ball-shaped. The AF guide ball 830 may be formed of metal. Grease may be applied to the surface of the AF guide ball 830 .

[0164] The AF guide ball 830 may include a plurality of balls. The AF guide ball 830 may include four balls. Two AF guide balls 830 may be disposed at one side of the AF magnet 710, and the remaining two AF guide balls 830 may be disposed at the other side of the AF magnet 710.

[0165] The lens driving device 10 may include a guide ball pressing member. The guide ball pressing member may pressurize the guide balls 810, 820, and 830. The guide ball pressing member may maintain a state in which the guide balls 810, 820, and 830 are in contact between two other members.

[0166] The lens driving device 10 may include an OIS-x ball pressurizing yoke 860. The OIS-x ball pressurizing yoke 860 may pressurize the OIS-x guide ball 810. The OIS-x ball pressurizing yoke 860 may allow the OIS-x guide ball 810 to remain in contact with the fixed part 100 and the OIS-x moving part 200. The OIS-x ball pressurizing yoke 860 may allow the OIS-x guide ball 820 to remain in contact with the base 110 and the OIS-x carrier 210. The OIS-x ball pressurizing yoke 860 may be configured to exert an attractive force on the OIS-x magnet 510. The OIS-x ball pressurizing yoke 860 may be disposed on an outer surface of the outer substrate 910. The OIS-x ball pressurizing yoke 860 may be disposed on the OIS-x moving part 200.

[0167] The lens driving device 10 may include an OIS-y ball pressurizing yoke 870. The OIS-y ball pressurizing yoke 870 may pressurize the OIS-y guide ball 820. The OIS-y ball pressurizing yoke 870 may allow the OIS-y guide ball 820 to remain in contact with the OIS-x moving part 200 and the OIS-y moving part 300. The OIS-y ball pressurizing yoke 870 may allow the OIS-x guide ball 820 to remain in contact with the OIS-x carrier 210 and the OIS-y carrier 310. The OIS-y ball pressurizing yoke 870 may be configured to exert an attractive force on the OIS-y magnet 610. The OIS-y ball pressurizing yoke 870 may be disposed on an outer surface of the outer substrate 910. The OIS-y ball pressurizing yoke 870 may be disposed in the OIS-x moving part 200.

[0168] The lens driving device 10 may include an AF ball pressurizing yoke 880. The AF ball pressurizing yoke 880 may pressurize the AF guide ball 830. The AF ball pressurizing yoke 880 may allow the AF guide ball 830 to remain in contact with the OIS-y moving part 300 and the AF moving part 400. The AF ball pressurizing yoke 880 may allow the AF guide ball 830 to remain in contact with the OIS-y carrier 310 and the AF carrier 410. The AF ball pressurizing yoke 880 may be configured to exert an attractive force on the AF magnet 710. The AF ball pressurizing yoke 880 may be disposed on an outer surface of the inner substrate 920. The AF ball pressurizing yoke 880 may be disposed in the OIS-y moving part 300.

[0169] The lens driving device 10 may include substrates 910 and 920. The substrates 910 and 920 may include a flexible printed circuit board FPCB. The substrates 910 and 920 may be electrically connected to the coils 520, 620, and 720. The substrates 910 and 920 may be electrically connected to the sensors 530, 630, and 730.

[0170] The lens driving device 10 may include an external substrate 910. The external substrate 910 may be disposed in the base 110 and the OIS-x carrier 210. The external substrate 910 may connect the base 110 and the OIS-x carrier 210. The external substrate 910 may elastically connect the base 110 and the OIS-x carrier 210. The external substrate 910 may movably support the OIS-x carrier 210 against the base 110. The external substrate 910 may be electrically connected to the OIS-x coil 520. The external substrate 910 may be electrically connected to the OIS-y coil 620. The external substrate 910 may be electrically connected to the OIS-x sensor 530. The external substrate 910 may be electrically connected to the OIS-y sensor 630. The external substrate 910 may include a flexible substrate. The external substrate 910 may include a flexible printed circuit board (FPCB). The external substrate 910 may include an elastic portion. The external substrate 910 may include an elastic member.

[0171] The outer substrate 910 may include an outer portion 911. The outer portion 911 may be disposed on the fixing member 100. The outer portion 911 may be disposed in the base 110. The outer portion 911 may be disposed on a side surface of the base 110. The outer portion 911 may be disposed on a lower plate 111 of the base 110. The outer portion 911 may be disposed on both side surfaces of the base 110. The outer portion 911 may include two terminal portions. The two terminal portions may be disposed opposite to each other with respect to the optical axis. The terminal portion may include a terminal 862-1.

[0172] The outer substrate 910 may include a terminal 911a. The outer portion 911 of the outer substrate 910 may include a terminal 911a. The terminal 911a may be provided at the lower end of the base 110. The terminal 911a may be coupled to the printed circuit board 50. The terminal 911a may be coupled to the terminal of the printed circuit board 50 via solder. The terminal 911a may be coupled to the terminal of the printed circuit board 50 via a conductive member. The terminal 911a may be connected to the terminal of the printed circuit board 50. The terminal 911a may be electrically connected to the terminal of the printed circuit board 50.

[0173] The outer substrate 910 may include an inner portion 912. The inner portion 912 may be disposed in the OIS-x moving part 200. The inner portion 912 may be disposed in the OIS-x carrier 210. A coil may be disposed in the inner portion 912. The OIS-x coil 520 may be disposed in the inner portion 912. The OIS-y coil 620 may be disposed in the inner portion 912. A sensor may be disposed in the inner portion 912. The OIS-x sensor 530 may be disposed in the inner portion 912. The OIS-y sensor 630 may be disposed in the inner portion 912. The inner portion 912 may include a first region in which the OIS-x coil 520 is disposed, a second region in which the OIS-y coil 620 is disposed, a third region in which the OIS-x sensor 530 is disposed, and a fourth region in which the OIS-y sensor 630 is disposed.

[0174] The outer substrate 910 may include a connection portion 913. The connection portion 913 may be an "extension portion". The connection portion 913 may be a "leg". The connection portion 913 may connect the outer portion 911 and the inner portion 912. The connection portion 913 may extend from the outer portion 911. At least a portion of the connection portion 913 may move together with the OIS-x carrier 210. At least a portion of the connection portion 913 may be arranged parallel to the optical axis direction. At least a portion of the connection portion 913 of the outer substrate 910 may be movably formed in the x-axis direction. The connection portion 913 may include a flexible substrate. The connection portion 913 may be flexible. The connection portion 913 may include a flexible printed circuit board (FPCB). The connection portion 913 may include an elastic portion. The connection portion 913 may include an elastic member.

[0175] The lens driving device 10 may include an inner substrate 920. The inner substrate 920 may be electrically connected to the AF coil 720. The inner substrate 920 may be electrically connected to the AF sensor 730. The inner substrate 920 may be disposed in the fixed component 100. The inner substrate 920 may be disposed in the OIS-y moving component 300. The inner substrate 920 may connect the base 110 and the OIS-y carrier 310. The inner substrate 920 may elastically connect the base 110 and the OIS-y carrier 310. The inner substrate 920 may movably support the OIS-y carrier 310 against the base 110. The inner substrate 920 may include a flexible substrate. The inner substrate 920 may include a flexible printed circuit board (FPCB). The inner substrate 920 may include an elastic portion. The inner substrate 920 may include an elastic member.

[0176] The inner substrate 920 may include an outer portion 921. The outer portion 921 may be provided in the fixing member 100. The outer portion 921 may be provided in the base 110. The outer portion 921 may be provided on a side surface of the base 110. The outer portion 921 may be provided in the lower plate 111 of the base 110.

[0177] The inner substrate 920 may include a terminal 921a. The outer portion 921 may include a terminal 921a. The outer portion 921 of the inner substrate 920 may include a terminal 921a. The terminal 921a may be disposed at the lower end of the base 110. The terminal 921a may be coupled to the printed circuit board 50. The terminal 921a may be coupled to the terminal of the printed circuit board 50 via solder. The terminal 921a may be coupled to the terminal of the printed circuit board 50 via a conductive member. The terminal 921a may be connected to the terminal of the printed circuit board 50. The terminal 921a may be electrically connected to the terminal of the printed circuit board 50.

[0178] The inner substrate 920 may include an inner portion 922. The inner portion 922 may be disposed in the OIS-y moving part 300. The inner portion 922 may be disposed in the OIS-y carrier 310. A coil may be disposed in the inner portion 922. The AF coil 720 may be disposed in the inner portion 922. A sensor may be disposed in the inner portion 912. The AF sensor 730 may be disposed in the inner portion 922. The inner portion 922 may include a first area in which the AF coil 720 is disposed and a second area in which the AF sensor 730 is disposed.

[0179] The inner substrate 920 may include a connection portion 923. The connection portion 923 may be an "extension portion". The connection portion 923 may be a "leg". The connection portion 923 may connect the outer portion 921 and the inner portion 922. The connection portion 923 may extend from the outer portion 921. At least a portion of the connection portion 923 may move with the OIS-y carrier 310. At least a portion of the connection portion 923 may be arranged parallel to the optical axis direction. At least a portion of the connection portion 923 of the inner substrate 920 may be movably formed in the x-axis direction. At least a portion of the connection portion 923 of the inner substrate 920 may be movably formed in the y-axis direction. The connection portion 923 may include a flexible substrate. The connection portion 923 may have flexibility. The connection portion 923 may include a flexible printed circuit board (FPCB). The connection portion 923 may include an elastic portion. The connection portion 923 may include an elastic member. At least a portion of the connection portion 923 of the inner substrate 920 may be movably formed in the x-axis direction and the y-axis direction.

[0180] The connection portion 923 may include an x-axis moving connection portion 923-1. The x-axis moving connection portion 923-1 may movably support the OIS-y moving part 300 in the x-axis direction. The x-axis moving connection portion 923-1 may movably support the OIS-y carrier 310 in the x-axis direction. The x-axis moving connection portion 923-1 may be arranged parallel to the y-axis. The x-axis moving connection portion 923-1 may be arranged parallel to the optical axis. The x-axis moving connection portion 923-1 may include a first portion to a third portion overlapping in the optical axis direction. The x-axis moving connection portion 923-1 may include a curved shape.

[0181] The connection portion 923 may include a y-axis moving connection portion 923-2. The y-axis moving connection portion 923-2 may movably support the OIS-y moving part 300 in the y-axis direction. The y-axis moving connection portion 923-2 may movably support the OIS-y carrier 310 in the y-axis direction. The y-axis moving connection portion 923-2 may be arranged parallel to the x-axis. The y-axis moving connection portion 923-2 may be arranged parallel to the optical axis. The y-axis moving connection portion 923-2 may overlap with the inner portion 922 in the optical axis direction. The y-axis moving connection portion 923-2 may include a curved shape.

[0182] Hereinafter, one of the “x-axis flow connection portion 923 - 1 ” and the “y-axis flow connection portion 923 - 2 ” may be referred to as a “first connection portion”, and the other may be referred to as a “second connection portion”.

[0183] Hereinafter, the configuration of a lens driving device according to a modified embodiment will be described with reference to the accompanying drawings.

[0184] Fig.26 is a perspective view of a lens driving device according to a modified example in which a cover is omitted, Fig. 27 Cut perpendicular to the optical axis and viewed from above Fig.26 Cross-sectional view of .

[0185] In a modified embodiment, the OIS-y carrier 310 - 1 may include a side wall on which the AF coil 720 - 1 is disposed.

[0186] The cover 120 may include a first side plate and a second side plate disposed opposite to each other, and a third side plate and a fourth side plate disposed opposite to each other. Fig. 27As shown, when viewed from above, the outer surface of the AF magnet 710-1 can be disposed obliquely between the second side plate and the fourth side plate of the cover 120. The AF magnet 710-1 can be disposed obliquely between the side plates of the cover 120. The AF coil 720-1 can be disposed obliquely between the side plates of the cover 120. The AF yoke 740-1 can be disposed obliquely between the side plates of the cover 120. The AF ball pressurizing yoke 880-1 can be disposed obliquely between the side plates of the cover 120.

[0187] The position of the AF guide balls 830-1 may be changed relative to the present embodiment. A set of AF guide balls 830-1 may be moved and arranged toward the center relative to the present embodiment. The structure of the AF guide balls 830-1 on which the AF carrier 830-1 is arranged may also be changed.

[0188] The inner substrate 920-1 may include a first portion 922-1 disposed on a sidewall of the OIS-y carrier 310-1. The AF coil 720-1 may be disposed in the first portion 922-1 of the inner substrate 920-1. The AF ball pressurizing yoke 880-1 may be disposed in the first portion 922-1 of the inner substrate 920-1.

[0189] In the modified embodiment, the AF magnet 710-1 and the AF coil 720-1 may be disposed obliquely in the corner region. In the modified embodiment, the AF magnet 710-1 and the AF coil 720-1 may not be disposed parallel to the side plate 122 of the cover 120, thereby ensuring more space within the cover 120. Thus, a greater driving force can be obtained in the modified embodiment compared to the present embodiment.

[0190] Hereinafter, auto focus (AF) driving of the lens driving device according to the present embodiment will be described with reference to the accompanying drawings.

[0191] Figures 28 to 30 FIG. 1 is a diagram for explaining autofocus driving of the lens driving device according to the present embodiment. Fig.28 is a cross-sectional view showing the appearance of the moving part in an initial state in which no current is applied to the AF coil. Fig.29 is a cross-sectional view showing an appearance that the moving part moves upward in the optical axis direction when a forward current is applied to the AF coil. Fig.30 is a cross-sectional view showing an appearance that a moving part moves downward in the optical axis direction when a reverse current is applied to the AF coil.

[0192] like Fig.28 As shown, in an initial position where no current is applied to the AF coil 720, the moving part may be disposed at a position spaced apart from both the top plate 121 of the cover 120 and the base 110. At this time, the moving part may be the AF moving part 400.

[0193] When a positive current is applied to the AF coil 720, the AF magnet 710 may move upward in the optical axis direction due to electromagnetic interaction between the AF coil 720 and the AF magnet 710 (see Fig.29 A). At this time, the AF carrier 410 can move upward in the optical axis direction together with the AF magnet 710. In addition, the lens can move upward in the optical axis direction together with the AF carrier 410. Therefore, the distance between the lens and the image sensor can be changed, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0194] When a reverse current is applied to the AF coil 720, the AF magnet 710 may move downward in the optical axis direction due to electromagnetic interaction between the AF coil 720 and the AF magnet 710 (see Fig.30 B). At this time, the AF carrier 410 can move downward in the optical axis direction together with the AF magnet 710. In addition, the lens can move downward in the optical axis direction together with the AF carrier 410. Therefore, the distance between the lens and the image sensor can be changed, and the focus of the image formed on the image sensor through the lens can be adjusted.

[0195] Meanwhile, during the movement process of the AF magnet 710, the AF sensor 730 can detect the movement amount or position of the lens in the optical axis direction by detecting the magnetic field strength of the AF magnet 710. The movement amount or position of the lens in the optical axis direction detected by the AF sensor 730 can be used for auto focus feedback control.

[0196] Hereinafter, optical image stabilization (OIS) driving of the lens driving device according to the present embodiment will be described with reference to the accompanying drawings.

[0197] Figure 31 to Figure 33 It is a diagram for explaining the hand shake correction drive of the lens driving device according to the present embodiment. Fig.31 is a cross-sectional view showing the appearance of an OIS moving part in an initial state in which no current is applied to the OIS-x coil and the OIS-y coil; Fig.32 is a cross-sectional view showing the appearance of an OIS moving part that moves in an x-axis direction perpendicular to the optical axis when a current is applied to the OIS-x coil; and Fig.33 is a cross-sectional view showing the appearance of an OIS-y moving part that moves in the y-axis direction perpendicular to both the optical axis and the x-axis when a current is applied to the OIS-y coil.

[0198] like Fig.31As shown, when no current is applied to the OIS-x coil 520 and the OIS-y coil 620, the moving part may be set at an initial position. At this time, the moving part may be an OIS moving part. The moving part may be an OIS-x moving part 200 and an OIS-y moving part 300. In addition, the moving part may include an OIS-x moving part 200, an OIS-y moving part 300, and an AF moving part 400.

[0199] When a current is applied to the OIS-x coil 520, the OIS-x magnet 510 may move in the x-axis direction perpendicular to the optical axis by electromagnetic interaction between the OIS-x coil 520 and the OIS-x magnet 510 (see Fig.32 A). At this time, the OIS-x carrier 210 can move in the x-axis direction together with the OIS-x coil 520. In addition, the OIS-y carrier 310, the AF carrier 410 and the lens can move in the x-axis direction together with the OIS-x carrier 210. In more detail, when a forward current is applied to the OIS-x coil 520, the OIS-x coil 520, the OIS-x carrier 210, the OIS-y carrier 310, the AF carrier 410 and the lens can move in one direction on the x-axis. In addition, when a reverse current is applied to the OIS-x coil 520, the OIS-x coil 520, the OIS-x carrier 210, the OIS-y carrier 310, the AF carrier 410 and the lens can move in another direction on the x-axis.

[0200] When a current is applied to the OIS-y coil 620, the OIS-y magnet 610 can move in the y-axis direction perpendicular to the optical axis by electromagnetic interaction between the OIS-y coil 620 and the OIS-y magnet 610 (see Fig.33 B). At this time, the OIS-y carrier 310 can move in the y-axis direction together with the OIS-y magnet 610. In addition, the lens can move in the y-axis direction together with the OIS-y carrier 310. More specifically, when a forward current is applied to the OIS-y coil 620, the OIS-y magnet 610, the OIS-y carrier 310, the AF carrier 410, and the lens can move in one direction on the y-axis. In addition, when a reverse current is applied to the OIS-y coil 620, the OIS-y magnet 610, the OIS-y carrier 310, the AF carrier 410, and the lens can move in another direction on the y-axis.

[0201] At the same time, the OIS-x sensor 530 can detect the magnetic field strength of the OIS-x magnet 510 and detect the relative movement amount or position of the OIS-x coil 520. The movement amount or position detected by the OIS-x sensor 530 can be used for hand-shake correction feedback control in the x-axis direction. The OIS-y sensor 630 can detect the magnetic field strength of the OIS-y magnet 610 and detect the movement amount or position of the OIS-y magnet 610. The movement amount or position detected by the OIS-y sensor 630 can be used for hand-shake correction feedback control in the y-axis direction.

[0202] Hereinafter, a camera device according to the present embodiment will be described with reference to the drawings.

[0203] Fig.34 It is an exploded perspective view of the camera device according to this embodiment.

[0204] The camera device 10A may include a camera module.

[0205] The camera device 10A may include a lens module 20. The lens module 20 may include at least one lens. The lens may be provided at a position corresponding to the image sensor 60. The lens module 20 may include a lens and a lens barrel. The lens module 20 may be coupled to the AF carrier 410 of the lens driving device 10. The lens module 20 may be coupled to the AF carrier 410 by threaded coupling and / or adhesive. The lens module 20 may move integrally with the AF carrier 410.

[0206] The camera device 10A may include an optical filter 30. The optical filter 30 may block light of a specific frequency band from passing through the lens module 20 and being incident on the image sensor 60. The optical filter 30 may be arranged parallel to the xy plane. The optical filter 30 may be arranged between the lens module 20 and the image sensor 60. The optical filter 30 may be arranged in the sensor base 40. In a modified embodiment, the optical filter 30 may be arranged in the base 110. The optical filter 30 may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor 60.

[0207] The camera device 10A may include a sensor base 40. The sensor base 40 may be disposed between the lens driving device 10 and the printed circuit board 50. The sensor base 40 may include a protruding portion 41 in which the filter 30 is disposed. An opening may be formed in a portion of the sensor base 40 in which the filter 30 is disposed so that light passing through the filter 30 may be incident on the image sensor 60. An adhesive member may couple or attach the base 110 of the lens driving device 10 to the sensor base 40. The adhesive member may additionally be used to prevent foreign matter from entering the interior of the lens driving device 10. The adhesive member may include at least one of an epoxy resin, a thermosetting adhesive, and an ultraviolet curing adhesive.

[0208] The camera device 10A may include a printed circuit board (PCB) 50. The printed circuit board 50 may be a substrate or a circuit board. The lens driving device 10 may be disposed in the printed circuit board 50. The sensor base 40 may be disposed between the printed circuit board 50 and the lens driving device 10. The printed circuit board 50 may be electrically connected to the lens driving device 10. The image sensor 60 may be disposed in the printed circuit board 50. Various circuits, elements, control units, etc. may be disposed in the printed circuit board 50 to convert an image formed on the image sensor 60 into an electrical signal and transmit the electrical signal to an external device.

[0209] The camera device 10A may include an image sensor 60. The image sensor 60 may be configured so that light passing through the lens and the filter 30 is incident to form an image. The image sensor 60 may be mounted on a printed circuit board 50. The image sensor 60 may be electrically connected to the printed circuit board 50. For example, the image sensor 60 may be coupled to the printed circuit board 50 by surface mounting technology (SMT). As another example, the image sensor 60 may be coupled to the printed circuit board 50 by flip chip technology. The image sensor 60 may be arranged so that its optical axis is aligned with the optical axis of the lens. That is, the optical axis of the image sensor 60 and the optical axis of the lens may be aligned. The image sensor 60 may convert light irradiated to an effective image area of ​​the image sensor 60 into an electrical signal. The image sensor 60 may be any one of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID.

[0210] The camera device 10A may include a motion sensor 70. The motion sensor 70 may be mounted on the printed circuit board 50. The motion sensor 70 may be electrically connected to the control unit 80 through a circuit pattern provided in the printed circuit board 50. The motion sensor 70 may output rotation speed information due to the motion of the camera device 10A. The motion sensor 70 may include a two-axis or three-axis gyro sensor, or an angular velocity sensor.

[0211] The camera device 10A may include a control unit 80. The control unit 80 may be disposed in the printed circuit board 50. The control unit 80 may be electrically connected to the coil 330 of the lens driving device 10. The control unit 80 may individually control the direction, intensity, and amplitude of the current supplied to the coil 330. The control unit 80 may control the lens driving device 10 to perform an autofocus function and / or a hand shake correction function. In addition, the control unit 80 may perform autofocus feedback control and / or hand shake correction feedback control for the lens driving device 10.

[0212] The camera device 10A may include a connector 90. The connector 90 may be electrically connected to the printed circuit board 50. The connector 90 may include a port for electrically connecting to an external device.

[0213] Hereinafter, an optical device according to the present embodiment will be described with reference to the drawings.

[0214] Fig.35 is a perspective view of an optical device according to the present embodiment; and Fig.36 is a perspective view of an optical device according to a modified embodiment.

[0215] The optical device 1 may include any one or more of the following: a mobile phone, a portable phone, a portable terminal, a mobile terminal, a smart phone, a smart tablet, a portable smart device, a digital camera, a laptop computer, a digital broadcast terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), and a navigation device. The optical device 1 may include any device for taking an image or a photo.

[0216] The optical device 1 may include a main body 20. The optical device 1 may include a camera device 10A. The camera device 10A may be disposed in the main body 20. The camera device 10A may photograph a subject. The optical device 1 may include a display. The display may be disposed in the main body 20. The display may output one or more of an image and a video photographed by the camera device 10A. The display may be disposed on a first surface of the main body 20. The camera device 10A may be disposed on one or more of the first surface of the main body 20 and a second surface opposite to the first surface. Fig.35 As shown in , the camera device 10A may have three cameras arranged in a vertical direction. Fig.36 As shown in , the camera device 10A-1 may have three cameras arranged in a horizontal direction.

[0217] Although the present embodiment of the present invention has been described with reference to the accompanying drawings, it will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical concept or essential features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary and non-restrictive in all aspects.

Claims

1. A lens driving device, comprising: Fixed parts; a first movable component disposed on the fixed component; a second moving part disposed in the first moving part; a third moving part disposed in the second moving part; a first driving component configured to move the first moving component along a first direction perpendicular to the optical axis direction; a second driving component configured to move the second moving component along a second direction perpendicular to the optical axis direction and the first direction; as well as a third driving component, the third driving component being configured to move the third moving component along the optical axis direction; The first driving component includes a first magnet disposed on the fixed component and a first coil disposed on the first moving component, and The second driving component includes a second magnet arranged on the second moving component and a second coil arranged on the first moving component.

2. The lens driving device according to claim 1, wherein: The third driving member includes a third magnet disposed on the third moving member and a third coil disposed on the second moving member. 3 . The lens driving device according to claim 1 , comprising a first ball disposed between the fixed component and the first movable component along the second direction. 4 . The lens driving device according to claim 1 , comprising a second ball bearing disposed between the first moving member and the second moving member along the first direction. 5 . The lens driving device according to claim 1 , comprising a third ball disposed between the second moving member and the third moving member along the second direction.

6. The lens driving device according to claim 3, wherein: The fixing member includes a lower plate and a protruding portion protruding from the lower plate, wherein the protruding portion of the fixed component is disposed in the first movable component, and Wherein, the first rolling ball is arranged on the protruding portion of the fixing component.

7. The lens driving device according to claim 1, comprising: a first substrate including an outer portion disposed on the fixed component, an inner portion disposed on the first movable component, and a connecting portion connecting the outer portion and the inner portion, Wherein, at least a portion of the connection portion of the first substrate is formed to be movably formed along the first direction.

8. The lens driving device according to claim 1, comprising: a second substrate including an outer portion provided on the fixed member, an inner portion provided on the second movable member, and a connecting portion connecting the outer portion and the inner portion, At least a portion of the connection portion of the second substrate is formed to be movably along the first direction and the second direction. 9 . The lens driving device according to claim 1 , comprising a first yoke provided on the first moving member and having an attractive force with the first magnet.

10. A lens driving device, comprising: Fixed parts; a first movable component disposed on the fixed component; a second moving part disposed in the first moving part; a third moving part disposed in the second moving part; a first driving component configured to move the first moving component along a first direction perpendicular to the optical axis direction; a second driving component configured to move the second moving component along a second direction perpendicular to the optical axis direction and the first direction; as well as a third driving component, the third driving component being configured to move the third moving component along the optical axis direction; wherein the first movable component comprises a first portion disposed outside the fixed component, and Wherein, the ball is arranged between the first part of the first movable component and the fixed component.

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