Lens driving device and camera module including the same

Abstract

The present disclosure relates to a lens driving apparatus including a lens module including a plurality of lenses, a carrier disposed in a housing and configured to move together with the lens module in an optical axis direction, a stopper coupled to the carrier, and a first ball member disposed between the housing and the carrier. The carrier includes a first side wall extending in the optical axis direction, wherein the first ball member is disposed on the first side wall, a second side wall extending from the first side wall, the second side wall having one surface coupled to the stopper, and a reinforced portion having an additional volume such that a thickness of a portion of the second side wall coupled to the stopper is greater on a side closer to the first side wall than on a side farther from the first side wall. The present disclosure also relates to a camera module.

Description

[0001] Cross-reference to related applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2025-0020784, filed on February 18, 2025, with the Korean Intellectual Property Office, and Korean Patent Application No. 10-2025-0066474, filed on May 22, 2025, the entire disclosure of which is incorporated herein by reference for all purposes. Technical Field

[0003] This disclosure relates to a lens driving device and a camera module including a lens driving device. Background Technology

[0004] Ultra-compact camera modules are used in mobile communication terminals such as smartphones, tablet PCs, and laptop computers.

[0005] As the size of the camera module decreases, the length of the focus adjustment support may also decrease, which may cause problems in maintaining verticality, such as the ball rolling part tilting due to its connection with other components.

[0006] The above information is presented as background information and is intended to aid in understanding this disclosure. No determination or assertion is made as to whether any of the above content can be used as prior art with respect to this disclosure. Summary of the Invention

[0007] The summary portion of this invention is intended to provide a brief overview of the chosen concepts, which will be further described in the detailed description portion below. This summary portion is not intended to identify key or essential features of the claimed subject matter, nor is it intended to help determine the scope of the claimed subject matter.

[0008] In one general aspect, the lens driving device includes: a lens module including a plurality of lenses; a carrier portion disposed in a housing and configured to move together with the lens module in an optical axis direction; a stop member coupled to the carrier portion; and a first spherical member disposed between the housing and the carrier portion. The carrier portion includes: a first sidewall extending in the optical axis direction, wherein the first spherical member is disposed on the first sidewall; a second sidewall extending from the first sidewall, the second sidewall having a surface coupled to the stop member; and a reinforcing portion having additional volume such that the thickness of the portion of the second sidewall coupled to the stop member is greater on the side closer to the first sidewall than on the side farther from the first sidewall.

[0009] The reinforcing portion may include a first chamfered surface that is inclined relative to a surface of the bearing portion on which the first ball member is disposed, and also inclined relative to another surface of the bearing portion that is connected to the stop member.

[0010] The reinforcing portion may include: a first reinforcing surface extending from one end of the reinforcing portion toward the housing; and a second reinforcing surface extending from the other end of the reinforcing portion toward the housing. The first reinforcing surface and the second reinforcing surface may be perpendicular to each other within the bearing portion.

[0011] The lens module may also include a lens bracket disposed on the support portion, and the lens bracket may include a cutout portion opposite to the reinforcing portion.

[0012] The cut portion may include a second chamfered surface opposite to the first chamfered surface.

[0013] In another general aspect, the lens drive device includes: a lens module including a plurality of lenses; a carrier portion disposed in a housing and configured to move together with the lens module in the optical axis direction; and a stop member coupled to the carrier portion. The carrier portion includes a rigid member configured to at least partially overlap with a portion of the carrier portion coupled to the stop member, the rigid member having an extension portion extending in the optical axis direction.

[0014] The material of a rigid component can have higher structural stiffness than the material of the load-bearing part.

[0015] The rigid member may include a bottom portion disposed on the bottom surface of the load-bearing portion. The extension portion may bend and extend from the bottom portion in the optical axis direction.

[0016] The length of the extension in the optical axis direction can correspond to the length of the bearing portion extending from the bottom surface of the bearing portion in the optical axis direction.

[0017] The extension portions can be spaced apart from each other in a direction perpendicular to the optical axis. The extension portions may include multiple extension portions, which are spaced apart from each other in another direction, one perpendicular to the optical axis and the other direction.

[0018] The stop can be connected to the stop connection portion provided on the bearing portion. The length of the extension portion in the width direction perpendicular to the optical axis can be less than the length of the stop connection portion in the width direction.

[0019] The support portion may include a first ball rolling portion having a first ball member disposed between a surface of the housing opposite to each other and a surface of the support portion. A stop connecting portion may be disposed on another surface of the support portion adjacent to one surface of the support portion. The center of the extension portion in the width direction may be positioned away from the first ball rolling portion relative to the center of the stop connecting portion in the width direction.

[0020] In another general aspect, the camera module includes: a support portion disposed within a housing and housing a lens module; and a focus adjustment portion configured to drive the support portion in the optical axis direction. The first ball rolling portion and the stop connecting portion may be disposed on different side surfaces of the support portion. The support portion includes: a reinforcing portion disposed at an inner corner of the support portion, where the first ball rolling portion and the stop connecting portion intersect each other; and a rigid member having an extension portion configured to at least partially overlap with the stop connecting portion.

[0021] The lens module may include a lens barrel in which multiple lenses are disposed, and a lens holder connected to the lens barrel. The lens holder may include a cutout portion configured to face the reinforcing portion.

[0022] The rigid member may include a metallic material and a bottom portion disposed on the bottom surface of the load-bearing part. The extension portion may bend and extend from the bottom portion in the optical axis direction.

[0023] The center of the extension portion in the width direction perpendicular to the optical axis can be set away from the center of the first ball rolling portion relative to the center of the stop member connecting portion in the width direction.

[0024] The camera module may also include an image stabilization section configured to drive the lens module in a direction perpendicular to the optical axis.

[0025] The image stabilization component may include multiple coils and multiple electronic devices disposed in the housing, and the multiple electronic devices may include at least three position sensors.

[0026] Other features and aspects will become apparent from the following detailed description and accompanying drawings. Attached Figure Description

[0027] Figure 1 This is a perspective view of a camera module according to an exemplary embodiment of the present disclosure.

[0028] Figure 2 This is an exploded perspective view of a camera module according to an exemplary embodiment of the present disclosure.

[0029] Figure 3A and Figure 3BThis is a perspective view of the support portion viewed from two directions according to exemplary embodiments of the present disclosure.

[0030] Figure 4 This is a partial enlarged view of the carrier portion according to an exemplary embodiment of the present disclosure.

[0031] Figure 5 This is a partial projection view of the carrier portion according to another exemplary embodiment of the present disclosure.

[0032] Figure 6 This is a partial projection view of the support portion according to an exemplary embodiment of the present disclosure.

[0033] Figure 7 This is an exploded perspective view of a lens driving device according to an exemplary embodiment of the present disclosure.

[0034] Figure 8 This is a partial enlarged view of a lens holder according to an exemplary embodiment of the present disclosure.

[0035] Figure 9 These are assembly plan views and partial enlarged views of a lens driving device according to exemplary embodiments of the present disclosure.

[0036] Figure 10 This is a partial enlarged view of the carrier portion according to an exemplary embodiment of the present disclosure.

[0037] Figure 11 It is along Figure 3A The cross-sectional view taken from line I-I'.

[0038] Figure 12 This is an exploded perspective view of the focus adjustment portion according to an exemplary embodiment of the present disclosure.

[0039] Figure 13 This is a side view of the support portion according to another exemplary embodiment of the present disclosure.

[0040] Figure 14 This is an exploded perspective view of the image stabilization portion according to an exemplary embodiment of the present disclosure.

[0041] Throughout the accompanying drawings and detailed embodiments, unless otherwise described, the same reference numerals refer to the same elements. For purposes of clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative dimensions, scale, and depiction of elements in the drawings may be exaggerated. Detailed Implementation

[0042] In the following description, although examples of this disclosure will be described in detail with reference to the accompanying drawings, it should be noted that the examples are not limited thereto.

[0043] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein, except for operations that must occur in a specific order, as will become apparent upon understanding this disclosure. Furthermore, for clarity and brevity, descriptions of features well-known in the art may be omitted.

[0044] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein are provided merely to illustrate some of the many possible ways in which the methods, apparatuses, and / or systems described herein will be apparent upon understanding this disclosure.

[0045] Throughout this specification, when an element such as a layer, region, or substrate is described as being "on," "connected to," or "attached to" another element, the element may be directly "on," directly "connected to," or directly "attached to" the other element, or there may be one or more other elements between the element and the other element. Conversely, when an element is described as being "directly on," "directly connected to," or "directly attached to" another element, there are no other elements between the element and the other element.

[0046] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more items; similarly, “at least one” includes any one of the associated listed items and any combination of any two or more items.

[0047] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited by these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, first part, first region, first layer, or first section mentioned in these examples may also be referred to as a second component, second part, second region, second layer, or second section.

[0048] Spatial relative terms such as “above,” “above,” “below,” and “under” may be used herein for descriptive convenience to describe the relationship of one element relative to another, as shown in the accompanying drawings. In addition to covering the orientation depicted in the drawings, these spatial relative terms are intended to also cover different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “above” another element would be located “below” or “under” that other element. Thus, depending on the spatial orientation of the device, the term “above” covers both orientations of “above” and “below”. The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein should be interpreted accordingly.

[0049] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the terms “a,” “an,” and “the” are intended to include the plural form as well. The terms “comprising,” “including,” and “having” indicate the presence of the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0050] Due to manufacturing techniques and / or tolerances, the shapes shown in the accompanying drawings may vary. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include shape variations that occur during manufacturing.

[0051] It should be noted that in this document, the term "may" is used relative to examples, such as regarding what an example may include or implement, meaning that there exists at least one example that includes or implements such a feature, but not all examples are limited to this.

[0052] The features of the examples described herein can be combined in various ways that will become apparent upon understanding this disclosure. Furthermore, although the examples described herein have multiple configurations, other configurations that will become apparent upon understanding this disclosure are also possible.

[0053] Figure 1 This is a perspective view of a camera module 1000 according to an exemplary embodiment of the present disclosure. Figure 2 This is an exploded perspective view of a camera module 1000 according to an exemplary embodiment of the present disclosure.

[0054] Reference Figure 1 and Figure 2The camera module 1000 according to an exemplary embodiment of the present disclosure may include a lens module 200, a lens driving device for moving the lens module 200, an image sensor module 700 for converting light incident through the lens module 200 into electrical signals, and a housing 120 and an outer casing 110 for accommodating the lens module 200 and the lens driving device.

[0055] The lens module 200 may include a lens barrel 210.

[0056] The lens barrel 210 may have a hollow cylindrical shape to accommodate multiple lenses for imaging an object, and the multiple lenses may be mounted in the lens barrel 210 along the optical axis.

[0057] Multiple lenses can be arranged in a desired number according to the design of the lens barrel 210, and each lens can have the same or different optical properties (e.g., refractive index).

[0058] The lens drive device can move the lens module 200.

[0059] The lens driving device according to an exemplary embodiment of the present disclosure may include a support portion 300 that houses a lens module 200 and moves together with the lens module 200 in the optical axis direction, a first ball rolling portion G10 having a first ball member B1 disposed between the support portion 300 and the housing 120, and a stop member 330 connected to the outer surface of the support portion 300.

[0060] For example, the lens module 200 may include a lens barrel 210 in which multiple lenses are disposed in the optical axis direction, and a lens holder 315 on which the lens barrel 210 is mounted.

[0061] For example, the lens driving device can adjust the focus by moving the lens module 200 in the direction of the optical axis. For example, the lens driving device can stabilize the image during image capture by moving the lens module 200 in a direction perpendicular to the optical axis.

[0062] That is, the camera module 1000 may include a focus adjustment part for adjusting the focus and an image stabilization part for stabilizing the image.

[0063] Exemplary embodiments of this disclosure may include a stop member 330. The stop member 330 may prevent the lens module 200 from separating from the support portion 300 due to external impacts, or may absorb impacts.

[0064] The image sensor module 700 can convert light incident through the lens module 200 into electrical signals.

[0065] For example, the image sensor module 700 may include an image sensor 710 and a printed circuit board 720 electrically connected to the image sensor 710.

[0066] The image sensor module 700 may also include an infrared filter. The infrared filter can block the infrared portion of the light beam incident through the lens barrel 210.

[0067] The electrical signal converted by the image sensor 710 can be output as an image through the display unit of the portable electronic device.

[0068] The image sensor 710 can be mounted to the printed circuit board 720 and can be electrically connected to the printed circuit board 720.

[0069] The lens module 200 and the lens drive can be housed in the housing 120.

[0070] For example, the upper and lower parts of the housing 120 may have an open shape, and the lens module 200 and the lens drive device may be housed in the interior space of the housing 120.

[0071] The image sensor module 700 can be located in the lower part of the housing 120.

[0072] Furthermore, the substrate 600 that provides drive signals to the focus adjustment section and the image stabilization section can be disposed on the side surface of the housing 120, and the substrate 600 can be configured as a single substrate surrounding the side surface of the housing 120.

[0073] As will be described below, the side surface of the housing 120 may have openings to allow insertion of the drive coil 430 of the focus adjustment section and the first electronic component section 405 (see below). Figure 12 ) and multiple coils of the image stabilization section and the second electronic component 505 (see Figure 14 ).

[0074] The housing 110 can be connected to the housing 120 and can perform the function of protecting the internal components of the camera module 1000.

[0075] In addition, the housing 110 can perform the function of shielding electromagnetic waves. For example, the housing 110 can shield electromagnetic waves generated in the camera module 1000 in order to prevent electromagnetic waves from affecting other electronic components in the portable electronic device.

[0076] For example, the housing 110 can be formed of a metallic material and can be grounded to a grounding pad provided on the printed circuit board 720, thereby shielding electromagnetic waves.

[0077] The lens module 200 may include a lens holder 315.

[0078] The lens holder 315 for image stabilization can be housed in the support portion 300. The lens barrel 210 can be mounted on the lens holder 315, so that the lens holder 315 and the lens barrel 210 can also move in the optical axis direction due to the movement of the support portion 300. In this case, the lens holder 315 can move in the X-axis direction and the Y-axis direction perpendicular to the optical axis direction (Z-axis direction).

[0079] The following describes the details related to the driving of the focus adjustment and image stabilization sections.

[0080] Figure 3A and Figure 3B This is a perspective view of the support portion viewed from two directions according to exemplary embodiments of the present disclosure. Figure 4 This is a partial enlarged view of portion A of the carrier according to an exemplary embodiment of the present disclosure. Figure 5 This is a partial projection view of the carrier portion according to another exemplary embodiment of the present disclosure. Figure 6 This is a partial projection view of portion A of the carrier according to an exemplary embodiment of the present disclosure.

[0081] The lens driving device and the camera module 1000 including the lens driving device according to exemplary embodiments of the present disclosure may include a support portion 300, and the support portion 300 may move together with the lens module 200 in the optical axis direction.

[0082] For example, the support portion 300 may include a stop member connection portion 331 on one of its surfaces opposite to the housing 120, such that the stop member 330 that partially covers the lens module 200 can be connected to the support portion 300.

[0083] The stop member connecting portion 331 can be configured as multiple stop member connecting portions 331, and the multiple stop member connecting portions 331 can be spaced apart from each other in a direction perpendicular to the optical axis.

[0084] The first ball rolling portion G10, which can accommodate the first ball component B1, can be provided on another surface of the support portion 300, rather than on the surface of the support portion 300 where the stop member connecting portion 331 is provided.

[0085] The first ball rolling portion G10 can have a track shape with length in the optical axis direction.

[0086] The support portion 300 may have a length in the optical axis direction and may have a first sidewall W1 disposed thereon a first spherical member B1.

[0087] The support portion 300 may have a second sidewall W2 extending from the first sidewall W1 in a direction perpendicular to the optical axis, and the second sidewall W2 has a length in the optical axis direction. The stop member 330 may be connected to the second sidewall W2.

[0088] The second sidewall W2 may have a stop member connecting portion 331, to which a stop member 330 is connected, and the stop member connecting portion 331 may be thinner than other portions.

[0089] For example, the thickness of a portion of the second sidewall W2 of the bearing portion 300 of this disclosure, which is connected to the stop member 330, can be formed to be thicker on the side closer to the first sidewall W1.

[0090] In other words, the reinforcing portion CH1 with additional volume can be formed at the inner corner between the first sidewall W1 and the second sidewall W2. The reinforcing portion CH1 can be located at the portion where the first sidewall W1 and the second sidewall W2 are adjacent to each other.

[0091] When the reinforcing portion CH1 is provided, the thickness of the first sidewall W1 can be increased in the direction toward the interior of the support portion 300. Similarly, the thickness of the second sidewall W2 can be increased in the direction toward the interior of the support portion 300.

[0092] As the wall thickness of the bearing part 300 increases, the stiffness of the bearing part 300 can be further increased.

[0093] For example, as the distance from the first sidewall W1 decreases, the thickness of the second sidewall W2 can increase, and therefore a reinforcing portion CH1 with an inclined shape can be provided at the corner of the support portion 300.

[0094] In other words, the reinforcing part CH1 can be located at the inner corner, where one surface of the bearing part 300 opposite to the housing 120 (the first ball member B1 is placed between this surface of the bearing part 300 and the housing 120) intersects with another surface of the bearing part 300 connected to the stop member 330.

[0095] In other words, the reinforcing part CH1 can be provided at the inner corner of the support part 300, and the first ball rolling part G10 provided on the side surface of the support part 300 and the stop member connecting part 331 provided on the other side surface of the support part 300 intersect each other at the inner corner.

[0096] For example, the reinforcing portion CH1 may be provided at at least two corners of the inner corner of the bearing portion 300, adjacent to the first ball rolling portion G10 and the stop member connecting portion 331.

[0097] For example, the reinforcing part CH1 can be provided at all the inner corners of the bearing part 300.

[0098] For example, the thickness of the second sidewall W2 can increase as the distance from the first sidewall W1 decreases. In this case, the reinforcing portion CH1 may include a first chamfered surface CH11 opposite to the lens holder 315 housed in the support portion 300. The first chamfered surface CH11 may have a generally rectangular shape.

[0099] For example, the first chamfered surface CH11 may be inclined relative to a surface of the support portion 300 on which the first ball rolling portion G10 is provided. Furthermore, the first chamfered surface CH11 may be inclined relative to another surface of the support portion 300 that is connected to the stop member 330.

[0100] The first chamfered surface CH11 can form a predetermined angle with a surface of the support portion 300 that is opposite to the housing 120. For example, the first chamfered surface CH11 can form an angle of approximately 45 degrees with a surface of the support portion 300 that is opposite to the housing 120.

[0101] For example, the reinforcing portion CH1 may include a first reinforcing surface CH12 extending from one end of the reinforcing portion CH1 toward the housing 120. In other words, the reinforcing portion CH1 may include a first reinforcing surface CH12 extending from one end of the first chamfered surface CH11 toward the housing 120.

[0102] The first reinforcing surface CH12 may be parallel to a surface of the bearing portion 300, including the stop member connecting portion 331.

[0103] Furthermore, the reinforcing portion CH1 may include a second reinforcing surface CH13 extending from the other end of the reinforcing portion CH1 toward the housing 120. In other words, the reinforcing portion CH1 may include a second reinforcing surface CH13 extending from the other end of the first chamfered surface CH11 toward the housing 120.

[0104] The second reinforcing surface CH13 may be parallel to a surface on which the first ball rolling portion G10 is disposed.

[0105] The first chamfered surface CH11 may be inclined relative to the first reinforcing surface CH12. Similarly, the first chamfered surface CH11 may be inclined relative to the second reinforcing surface CH13.

[0106] The first reinforcing surface CH12 and the second reinforcing surface CH13 can be perpendicular to each other within the bearing portion 300.

[0107] When the reinforcing part CH1 is located at the inner corner of the bearing part 300, the wall thickness of the bearing part 300 can be increased.

[0108] For example, the inner wall thickness of the support portion 300 can increase from the first reinforcing surface CH12 in the direction perpendicular to the first axis (X-axis). In other words, the inner wall thickness of the support portion 300 can increase from the second sidewall W2 in the direction perpendicular to the first axis (X-axis).

[0109] For example, the inner wall thickness of the support portion 300 can increase from the second reinforcing surface CH13 in the direction of the second axis (Y-axis) perpendicular to the optical axis. In other words, the inner wall thickness of the support portion 300 can increase from the first sidewall W1 in the direction of the second axis (Y-axis).

[0110] In other words, the wall thickness of the bearing portion 300 can be increased toward the rear surface of the first ball rolling portion G10 and the stop member connecting portion 331.

[0111] In this case, one of the inner corners of the support portion 300 may have an increased volume, which is essentially {(length d1 of the first reinforcing surface CH12 in the width direction perpendicular to the optical axis × length d2 / 2 of the second reinforcing surface CH13 in the width direction perpendicular to the optical axis) × height h1 of the first chamfered surface CH11 from the bottom surface of the support portion 300 in the optical axis direction}.

[0112] As a result, the volume increase of the bearing part 300 can reach four times the maximum volume increase mentioned above.

[0113] As the thickness of the bearing portion 300 increases toward the rear surface of the first ball rolling portion G10 and the stop member connecting portion 331 of the bearing portion 300, the rigidity of the bearing portion 300 can be increased.

[0114] Therefore, even when the stop 330 is connected to the bearing 300, the perpendicularity of the first ball rolling portion G10 can be maintained.

[0115] In other words, even when the stop 330 is connected to the bearing 300, the perpendicularity of the first ball rolling portion G10 can be maintained, thereby reducing the possibility of failure during drive focus adjustment (AF).

[0116] Furthermore, since an inclined reinforcing portion CH1 is formed on the inner side of the support portion 300, the stress applied to the support portion 300 can be dispersed, and one surface of the support portion 300 opposite to the housing 120 intersects with another surface of the support portion 300 on this inner side.

[0117] In other words, due to the increased stiffness and stress dispersion caused by the increased wall thickness of the bearing portion 300, the bearing portion 300 can be driven stably.

[0118] The shape of the reinforcing portion CH1 in this disclosure is not limited to the example, and can be set as follows: Figure 5Another shape shown.

[0119] Reference Figure 5 The thickness of the portion of the second sidewall W2 closer to the first sidewall W1 can be set to be greater than the thickness of the portion of the second sidewall W2 farther from the first sidewall W1. However, as the distance between the increased portion of the second sidewall W2 and the first sidewall W1 gradually decreases, the thickness of the increased portion can remain constant rather than increase further.

[0120] Even in this case, a reinforcing portion CH1 with additional volume can be formed at the inner corner between the first sidewall W1 and the second sidewall W2 of the support portion 300. The reinforcing portion CH1 can be provided at the portion of the first sidewall W1 and the second sidewall W2 of the support portion 300 that are adjacent to each other.

[0121] When the reinforcing portion CH1 is provided, the thickness of the first sidewall W1 can increase toward the interior of the support portion 300. Similarly, the thickness of the second sidewall W2 can increase toward the interior of the support portion 300.

[0122] In another exemplary embodiment of this disclosure, the reinforcing portion CH1 may include a third reinforcing surface CH14 and a fourth reinforcing surface CH15.

[0123] The third reinforcing surface CH14 may be a surface extending perpendicularly from the second sidewall W2. The fourth reinforcing surface CH15 may be a surface extending perpendicularly from the first sidewall W1. The third reinforcing surface CH14 and the fourth reinforcing surface CH15 may be perpendicular to each other.

[0124] In this case, one of the inner corners of the support portion 300 may have an increased volume, which is essentially {(the length d3 of the third reinforcing surface CH14 in the width direction perpendicular to the optical axis × the length d4 of the fourth reinforcing surface CH15 in the width direction perpendicular to the optical axis) × the height h2 of the second sidewall W2 from the bottom surface of the support portion 300 in the optical axis direction}.

[0125] The volume increase of the bearing part 300 can reach four times the maximum volume increase mentioned above.

[0126] As the wall thickness of the bearing part 300 increases, the stiffness of the bearing part 300 can be further increased.

[0127] In other words, increasing the wall thickness of the load-bearing section 300 enhances its rigidity, allowing the load-bearing section 300 to be driven more stably. Therefore, the likelihood of focus adjustment (AF) failure is reduced.

[0128] Figure 7 This is an exploded perspective view of a lens driving device according to an exemplary embodiment of the present disclosure. Figure 8This is a partial enlarged view of portion B of the lens holder 315 according to an exemplary embodiment of the present disclosure. Figure 9 This is an assembly plan view and a partial enlarged view of part C of the lens driving device according to exemplary embodiments of the present disclosure.

[0129] For example, a lens driving device may include a support portion 300 and a lens holder 315 housed in the support portion 300.

[0130] The lens holder 315 can be accommodated in the support portion 300 in the optical axis direction. The inner surface of the support portion 300 and the outer surface of the lens holder 315 can be arranged opposite each other.

[0131] For example, the lens holder 315 may include a cutout portion CH2 opposite to the reinforcing portion CH1. In the same manner as the reinforcing portion CH1, the cutout portion CH2 may have a substantially chamfered shape.

[0132] For example, the cut-out portion CH2 can be located at the outer corner of the lens holder 315, which is opposite to each of the two inner corners of at least the inner corner of the support portion 300 that are adjacent to the first ball rolling portion G10 and the stop member connecting portion 331.

[0133] For example, the cutout CH2 can be located at all the outer corners of the lens holder 315.

[0134] The cut portion CH2 may include a second chamfered surface CH21. The second chamfered surface CH21 may have a generally rectangular shape.

[0135] The second chamfered surface CH21 can be opposite to the first chamfered surface CH11. In this case, the first chamfered surface CH11 and the second chamfered surface CH21 can be substantially parallel to each other.

[0136] For example, the second chamfered surface CH21 may be inclined relative to one surface of the lens holder 315 opposite to the support portion 300 in a direction perpendicular to the first axis (X-axis) of the optical axis. Furthermore, the second chamfered surface CH21 may be inclined relative to another surface of the lens holder 315 opposite to the support portion 300 in a direction perpendicular to the second axis (Y-axis) of the optical axis.

[0137] The second chamfered surface CH21 can form an angle with a surface of the lens holder 315 opposite to the support portion 300 in a direction perpendicular to the first axis (X-axis) or the second axis (Y-axis) of the optical axis. For example, the second chamfered surface CH21 can form an angle of approximately 45 degrees with a surface of the lens holder 315 opposite to the support portion 300 in a direction perpendicular to the first axis (X-axis) or the second axis (Y-axis) of the optical axis.

[0138] When the support portion 300 includes the reinforcing portion CH1, the inner wall thickness of the support portion 300 can be increased, which can limit the driving range of the lens support 315 that moves within the support portion 300.

[0139] In this case, as in the exemplary embodiments of this disclosure, since the lens holder 315 includes a cutout portion CH2, the cutout portion can be formed at the corner of the lens holder 315.

[0140] Because a cutout is formed at the corner of the lens holder 315, the driving range of the lens holder 315 can be partially increased.

[0141] Therefore, the lens holder 315 can be driven stably to minimize the collision between the outer surface of the lens holder 315 and the inner surface of the support portion 300.

[0142] Figure 10 This is a partial enlarged view of portion A of the carrier 300 according to an exemplary embodiment of the present disclosure. Figure 11 It is along Figure 3A The cross-sectional view taken from line I-I'.

[0143] The lens driving device and the camera module 1000 including the lens driving device according to exemplary embodiments of the present disclosure may include a support portion 300, and the support portion 300 may include a rigid member R.

[0144] The rigid member R can be formed of a material different from that of the load-bearing part 300. In this case, the rigid member R can be formed of a material with a higher structural stiffness than that of the load-bearing part 300.

[0145] For example, the rigid member R can be formed of a metallic material. However, the material is not limited to metallic materials.

[0146] The rigid member R can be provided in the support portion 300 by insert injection molding. That is, at least a portion of the rigid member R can be configured to overlap with the portion of the support portion 300 that is connected to the stop member 330, but this disclosure is not limited thereto. The rigid member R can also be provided by attaching it to the support portion 300.

[0147] The rigid member R may include a bottom portion R1 disposed on the bottom surface of the bearing portion 300 and an extension portion R2 extending from the bottom portion R1 in the optical axis direction.

[0148] The extension portion R2 can be configured to bend and extend from the bottom portion R1 in the optical axis direction. That is, the rigid member R can be injection molded into the support portion 300 by means of an insert, so that the bottom portion R1 and the extension portion R2 can be integrally formed.

[0149] like Figure 3A and Figure 3B As shown, the extension portions R2 can be disposed in the support portion 300 and spaced apart in one direction perpendicular to the optical axis, or they can be spaced apart in another direction, which is both perpendicular to the optical axis and the one direction. That is, the extension portions R2 can be configured as multiple extension portions R2 located at various corners of the support portion 300.

[0150] The extension portion R2 can be disposed at a position where it overlaps with the stop member connecting portion 331 of the support portion 300. That is, the extension portion R2 can be disposed to overlap with a surface of the support portion 300 including the stop member connecting portion 331.

[0151] When the extension portion R2 is positioned at a location where it overlaps with the stop member connection portion 331 of the support portion 300, the extension portion R2 can overlap with the thin portion of the support portion 300, thereby increasing the rigidity of the support portion 300.

[0152] For example, the length d6 of the stop member connecting portion 331 in the width direction perpendicular to the optical axis can be greater than the length d5 ​​of the extension portion R2 in the width direction perpendicular to the optical axis.

[0153] The length d5 ​​of the extension portion R2 in the width direction can preferably be equal to or greater than half the length d6 of the stop member connecting portion 331 in the width direction.

[0154] For example, the length h3 of the extension portion R2 in the optical axis direction can correspond to the length h1 of the first chamfered surface CH11 in the optical axis direction from the bottom surface of the support portion 300.

[0155] For example, the center of the length d5 ​​of the extension portion R2 in the width direction can be set to be closer to or farther from the center of the length d6 of the stop member connecting portion 331 in the width direction than the center of the first ball rolling portion G10.

[0156] Preferably, such as Figure 11 As shown, the center of the length d5 ​​of the extension portion R2 in the width direction can be set away from the center of the length d6 of the stop member connecting portion 331 in the width direction, away from the first ball rolling portion G10.

[0157] Since an extension R2 with higher rigidity can be provided to overlap with the stop member connection portion 331, which is a thinner portion of the support portion 300, the rigidity of the support portion 300 can be increased.

[0158] In this case, even when the stop member 330 is connected to the stop member connection portion 331 of the bearing portion 300, the perpendicularity of the first ball rolling portion G10 can be maintained.

[0159] In other words, even when the stop 330 is connected to the bearing 300, the perpendicularity of the first ball rolling portion G10 can be maintained, thereby reducing the possibility of failure during drive focus adjustment (AF).

[0160] Figure 12 This is an exploded perspective view of the focus adjustment portion according to an exemplary embodiment of the present disclosure. Figure 13 This is a side view of the carrier portion 300 according to another exemplary embodiment of the present disclosure.

[0161] For example, this disclosure may include a focus adjustment section for moving the lens module 200 in the optical axis direction.

[0162] The focus adjustment section may include a support portion 300 that houses the lens module 200 and a first drive portion 400 that generates a driving force to move the support portion 300 in the optical axis direction.

[0163] The first driving section 400 may include a driving magnet 410 and a driving coil 430. The driving magnet 410 and the driving coil 430 may be arranged opposite each other in a direction perpendicular to the optical axis.

[0164] The driving magnet 410 can be disposed on the support portion 300. For example, the driving magnet 410 can be disposed on the outer surface of the support portion 300. The driving magnet 410 can be disposed to overlap with the second magnet 520, which will be described below, in a direction perpendicular to the optical axis.

[0165] The drive magnet 410 can be configured to face the first crimping member 420 inserted into the carrier portion 300. For example, the drive magnet 410 can directly contact and be connected to the first crimping member 420.

[0166] The first crimping member 420 can be formed of a magnetic material. Therefore, an attractive force can be generated between the first crimping member 420 and the driving magnet 410.

[0167] The driving magnet 410 can be magnetized such that a surface of the driving magnet 410 opposite to the driving coil 430 can have both an N pole and a S pole. For example, on a surface of the driving magnet 410 opposite to the driving coil 430, the N pole, the neutral region, and the S pole can be magnetized sequentially in the optical axis direction.

[0168] The drive coil 430 may be a copper foil pattern, wherein the winding coil is attached to the substrate 600 or stacked and embedded in the substrate 600. The substrate 600 may be mounted on a side surface of the housing 120 such that the drive magnet 410 and the drive coil 430 may be opposite each other in a direction perpendicular to the optical axis.

[0169] During focus adjustment, the drive magnet 410 can be a moving member that moves together with the support portion 300 in the optical axis direction, and the drive coil 430 can be a fixed member that is fixed to the substrate 600 and the housing 120.

[0170] When electricity is applied to the drive coil 430, the electromagnetic force between the drive magnet 410 and the drive coil 430 can move the support part 300 in the optical axis direction.

[0171] The focus adjustment section may include a first magnetic yoke 425. The first magnetic yoke 425 may be configured to face the drive magnet 410 in a direction perpendicular to the optical axis. For example, the first magnetic yoke 425 may be mounted on the outer surface of the substrate 600. Therefore, the first magnetic yoke 425 may be configured to face the drive magnet 410, and the drive coil 430 may be inserted between the first magnetic yoke 425 and the drive magnet 410.

[0172] The attractive force can act between the first magnetic yoke 425 and the driving magnet 410 in a direction perpendicular to the optical axis.

[0173] Therefore, the first ball component B1 can maintain contact with the support portion 300 and the housing 120 through the attraction between the first magnetic yoke 425 and the driving magnet 410.

[0174] In addition, the first yoke 425 can be used to concentrate the magnetic force driving the magnet 410, thereby preventing leakage flux.

[0175] For example, the first magnetic yoke 425 and the driving magnet 410 can form a magnetic circuit.

[0176] The focus adjustment section may include a second yoke 440. The second yoke 440 may be disposed in a position opposite to the drive magnet 410 in the focus adjustment section. For example, the second yoke 440 may be disposed within the drive coil 430 opposite to the drive magnet 410.

[0177] The second yoke 440 can be eccentrically positioned relative to the drive magnet 410. For example, the second yoke 440 can be positioned close to the first groove g1 of the first ball rolling portion G10 of the support portion 300, which will be described below. That is, the second yoke 440 can be positioned closer to the main rolling portion.

[0178] The second magnetic yoke 440 may be formed of a material capable of generating an attractive force relative to the driving magnet 410.

[0179] Therefore, the combined force of the attraction between the driving magnet 410 and the first yoke 425 and the attraction between the driving magnet 410 and the second yoke 440 can act closer to the main rolling part than the auxiliary rolling part.

[0180] For example, the support region A can be formed to be longer in the optical axis direction as the distance from the main rolling part decreases. Therefore, the second magnetic yoke 440 can be positioned closer to the main rolling part, so that the center point CP of the attraction force can be more stably located within the support region A.

[0181] The ball rolling portion can be disposed on the opposing surfaces of the support portion 300 and the housing 120. For example, the first ball rolling portion G10 can be disposed on one surface of the support portion 300, and the second ball rolling portion G20 can be disposed on the surface of the housing 120 opposite to the one surface of the support portion 300.

[0182] The first ball rolling portion G10 may include a first groove g1 and a third groove g3, and the second ball rolling portion G20 may include a second groove g2 and a fourth groove g4. Each groove may have a track shape extending in the optical axis direction.

[0183] The first groove g1 and the second groove g2 can be arranged opposite each other in a direction perpendicular to the optical axis. The first ball assembly BG1 (a part of the first ball member B1) can be disposed in the space between the first groove g1 and the second groove g2.

[0184] The first groove g1 and the second groove g2 may be included in the main rolling portion.

[0185] The first ball group BG1 and the main rolling part can be used as the main guide for guiding the movement of the bearing 300 in the optical axis direction.

[0186] The third groove g3 and the fourth groove g4 can be arranged to be opposite each other in a direction perpendicular to the optical axis, and the second ball group BG2 (a part of the first ball member B1) can be arranged in the space between the third groove g3 and the fourth groove g4.

[0187] The third groove g3 and the fourth groove g4 may be included in the auxiliary rolling portion.

[0188] The second ball group BG2 and the auxiliary rolling part can be used as auxiliary guides to support the movement of the bearing 300 in the optical axis direction.

[0189] Each of the first ball group BG1 and the second ball group BG2 may include multiple balls arranged in the direction of the optical axis.

[0190] The first sphere group BG1 and the second sphere group BG2 can be set to be spaced apart from each other in a direction perpendicular to the optical axis.

[0191] For example, the number of balls in the first group BG1 and the number of balls in the second group BG2 can be equal to each other.

[0192] According to another exemplary embodiment of this disclosure, such as Figure 13 As shown, the number of balls in the first group BG1 and the number of balls in the second group BG2 can be different from each other.

[0193] For example, the first ball group BG1 may include two or more balls arranged in the direction of the optical axis, and the second ball group BG2 may include fewer balls than the number of balls included in the first ball group BG1.

[0194] Assuming that the number of balls included in the first ball group BG1 and the number of balls included in the second ball group BG2 are different from each other, the number of balls included in each ball group can be varied. Hereinafter, for ease of description, an exemplary embodiment will be described based on the case that the first ball group BG1 includes three balls and the second ball group BG2 includes two balls.

[0195] Among the three spheres included in the first sphere group BG1, the two outermost spheres in the direction parallel to the optical axis can have equal diameters, and the diameter of the sphere positioned between the outermost spheres can be smaller than the diameter of the outermost sphere.

[0196] For example, among the multiple spheres included in the first sphere group BG1, the two outermost spheres in a direction parallel to the optical axis may have a first diameter, and a sphere disposed between the outermost spheres may have a second diameter, and the first diameter may be larger than the second diameter.

[0197] The two balls included in the second ball group BG2 can have the same diameter. For example, the two balls included in the second ball group BG2 can have a third diameter.

[0198] Furthermore, the first diameter and the third diameter can be equal to each other. Here, "equal to each other" can include not only cases where the diameters are physically equal, but also cases where there are manufacturing tolerances.

[0199] The distance between the centers of the outermost spheres in the direction parallel to the optical axis among the plurality of spheres included in the first sphere group BG1 can be different from the distance between the centers of the outermost spheres in the direction parallel to the optical axis among the plurality of spheres included in the second sphere group BG2.

[0200] In order for the support portion 300 to move parallel to the optical axis when it moves in the optical axis direction, the center point CP of the attraction force acting between the driving magnet 410 and the first yoke 425 may need to be located in the support area A of the contact point connecting the first ball member B1 and the support portion 300.

[0201] When the center point CP of the attraction deviates from the support area A, the position of the bearing part 300 may become misaligned during its movement and may tilt. Therefore, it may be necessary to form a support area A that is as wide as possible.

[0202] In another exemplary embodiment of this disclosure, some of the balls among the plurality of balls of the first ball member B1 may be intentionally configured to have a diameter smaller than that of the other balls. In this case, the ball with the larger diameter among the plurality of balls may intentionally come into contact with the support portion 300.

[0203] Two of the three balls in the first ball group BG1 may have a larger diameter than the diameter of the remaining ball, allowing the two balls in the first ball group BG1 to contact the support portion 300. Furthermore, the two balls in the second ball group BG2 may have the same diameter, and the two balls in the second ball group BG2 may also contact the support portion 300.

[0204] Therefore, as Figure 13 As shown, when viewed in a direction perpendicular to the optical axis, the first spherical member B1 can contact the support portion 300 at four points. The support region A connecting the contact points to each other can have a quadrilateral shape.

[0205] As a result, the support region A can be formed to be relatively wide, and therefore, the center point CP of the attraction force acting between the drive magnet 410 and the first yoke 425 can be stably located within the support region A. That is, drive stability can be maintained during focus adjustment.

[0206] The focus adjustment section may include a first electronic component 405. For example, the first electronic component 405 may include a first drive IC 460 for controlling current and a first multilayer ceramic capacitor (MLCC) 450 for smoothing current flow and signal transmission.

[0207] The current applied to the drive coil 430 can be controlled by the first drive IC 460.

[0208] For example, the first driver IC 460 may include a Hall sensor, but the invention is not limited thereto. The Hall sensor may be configured as a separate component from the first driver IC 460.

[0209] The Hall sensor can detect the position of the corresponding component in the optical axis direction based on the change in magnetic field strength caused by the position change of the driving magnet 410, and the first driving IC 460 can limit the allowable current used to drive the coil 430 based on the Hall sensor signal.

[0210] The first driver IC 460 can be spaced apart from the driver coil 430 in a direction perpendicular to the optical axis and can be disposed in the housing 120.

[0211] The first MLCC 450 can be configured to be opposite the drive magnet 410 within the drive coil 430.

[0212] Figure 14 This is an exploded perspective view of the image stabilization portion according to an exemplary embodiment of the present disclosure.

[0213] For example, this disclosure may include an image stabilization section that moves the lens module 200 in a direction perpendicular to the optical axis.

[0214] The image stabilization section may include a lens holder 315 and a second drive section 500 that generates a driving force to move the lens holder 315 in a direction perpendicular to the optical axis.

[0215] The second driving section 500 may include multiple magnets and multiple coils disposed on the substrate 600.

[0216] The second driving part 500 may include a first sub-driving part 501, which includes a first magnet 510, a first coil 511, and a second coil 512.

[0217] The second driving part 500 may include a second sub-driving part 502, which includes a second magnet 520, a third coil 521 and a fourth coil 522.

[0218] The first sub-drive section 501 can generate driving force in the direction of the first axis (X-axis), and the second sub-drive section 502 can generate driving force in the direction of the second axis (Y-axis).

[0219] The first magnet 510 can be configured to be opposite the first coil 511 and the second coil 512 in a direction perpendicular to the optical axis. The second magnet 520 can be configured to be opposite the third coil 521 and the fourth coil 522 in a direction perpendicular to the optical axis.

[0220] The first magnet 510 can be positioned opposite both the first coil 511 and the second coil 512 in a direction perpendicular to the optical axis. One surface of the first magnet 510 opposite one of the first coils 511 and 512 can be magnetized to have an N pole or a S pole. In this case, another surface of the first magnet 510 opposite the other of the first coils 511 and 512 can be magnetized to have opposite polarities.

[0221] The first coil 511 and the second coil 512 can be fixed members disposed on the substrate 600 and fixed to the housing 120, and the first magnet 510 can be a movable member that moves while disposed in the lens bracket 315.

[0222] The first magnet 510 can be positioned opposite the second crimp member 310 inserted into the lens holder 315. For example, the first magnet 510 can directly contact and be connected to the second crimp member 310.

[0223] The second crimping member 310 can be formed of a magnetic material. Therefore, an attractive force can be generated between the second crimping member 310 and the first magnet 510.

[0224] When electricity is applied to the first coil 511 and the second coil 512, the electromagnetic force between the first coil 511 and the second coil 512 can move the first magnet 510 and the lens support 315 in a direction perpendicular to the first axis (X-axis) of the optical axis.

[0225] The polarization length of the first magnet 510 opposite to the first coil 511 can be greater than the polarization length of the first magnet 510 opposite to the second coil 512. Therefore, leakage of magnetic flux can be prevented.

[0226] The second magnet 520 can be positioned opposite both the third coil 521 and the fourth coil 522 in a direction perpendicular to the optical axis. One surface of the second magnet 520 opposite to one of the third coil 521 and the fourth coil 522 can be magnetized to have an N pole or a S pole. In this case, the other surface of the second magnet 520 opposite to the other of the third coil 521 and the fourth coil 522 can be magnetized to have the opposite polarity.

[0227] The third coil 521 and the fourth coil 522 can be fixed members disposed on the substrate 600 and fixed to the housing 120, and the second magnet 520 can be a movable member that moves while disposed in the lens holder 315.

[0228] The second magnet 520 can be positioned opposite the third crimp member 320 inserted into the lens holder 315. For example, the second magnet 520 can directly contact and be connected to the third crimp member 320.

[0229] The third crimping member 320 can be formed of a magnetic material. Therefore, an attractive force can be generated between the third crimping member 320 and the second magnet 520.

[0230] When electricity is applied to the third coil 521 and the fourth coil 522, the electromagnetic force between the third coil 521 and the fourth coil 522 can move the second magnet 520 and the lens support 315 in the direction of the second axis (Y-axis) perpendicular to the optical axis.

[0231] The image stabilization component may include multiple spherical components supporting the lens holder 315.

[0232] Multiple ball joints can be used to guide the movement of the lens holder 315 and the lens barrel 210 during the image stabilization process. In addition, the multiple ball joints can perform the function of maintaining the distance between the support portion 300 and the lens holder 315.

[0233] Multiple spherical components may include a second spherical component B2.

[0234] The second ball component B2 can guide the movement of the lens support 315 in the first axis (X-axis) direction and the second axis (Y-axis) direction.

[0235] The image stabilization section may include a second electronic component 505. For example, the second electronic component 505 may include second driver ICs 513, 523, and 524 for controlling current and second MLCCs 514, 525, and 526 for smoothing current flow and signal transmission.

[0236] The second driver ICs 513, 523 and 524 and the second MLCCs 514, 525 and 526 can be configured as multiple second driver ICs 513, 523 and 524 and multiple second MLCCs 514, 525 and 526, respectively.

[0237] The current applied to multiple coils can be controlled by the second driver ICs 513, 523 and 524.

[0238] For example, the second driver ICs 513, 523, and 524 may include multiple Hall sensors. However, the invention is not limited thereto, and the multiple Hall sensors may be configured as separate components from each of the second driver ICs 513, 523, and 524.

[0239] Multiple Hall sensors can detect the position of the corresponding component in the optical axis direction based on the change in magnetic field strength caused by the position change of the first magnet 510 and the second magnet 520, and the second drive ICs 513, 523 and 524 can limit the allowable current of multiple coils based on the signals of multiple Hall sensors.

[0240] The second MLCCs 514, 525 and 526 can be spaced apart from the multiple coils in a direction perpendicular to the optical axis and can be housed in the housing 120.

[0241] The second driver ICs 513, 523 and 524 can be configured to be opposite to the first magnet 510 or the second magnet 520 respectively in multiple coils.

[0242] The second driver ICs 513, 523, and 524 may include at least three driver ICs. Similarly, the second MLCCs 514, 525, and 526 may include at least three MLCCs.

[0243] One aspect of this disclosure is that the perpendicularity of the ball rolling portion can be maintained even when the bearing portion is connected to other components.

[0244] According to an exemplary embodiment of the present disclosure, the lens driving device and the camera module including the lens driving device can maintain the perpendicularity of the ball rolling portion of the support portion.

[0245] While specific examples have been shown and described above, it will be apparent upon understanding this disclosure that various changes in form and detail may be made to these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be understood in a descriptive sense only and not for limiting purposes. The description of features or aspects in each example should be considered applicable to similar features or aspects in other examples. Suitable results may still be achieved if the described techniques are performed in a different order, and / or if components in the described system, architecture, device, or circuit are combined in different ways and / or replaced or supplemented by other components or their equivalents. Therefore, the scope of this disclosure is not limited by the specific embodiments but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents should be understood to be included in this disclosure.

Claims

1. A lens driving device, comprising: The lens module includes multiple lenses; A support unit is disposed within the housing and configured to move together with the lens module in the optical axis direction; The stop member is connected to the bearing portion; as well as The first spherical component is disposed between the shell and the supporting part. The supporting part includes: A first sidewall extends in the direction of the optical axis, wherein the first spherical member is disposed on the first sidewall; A second sidewall extends from the first sidewall and has a surface that engages with the stop; and The reinforcing portion has an additional volume such that the thickness of the portion of the second sidewall that connects to the stop is greater on the side closer to the first sidewall than on the side farther away from the first sidewall.

2. The lens driving device according to claim 1, wherein, The reinforcing portion includes a first chamfered surface that is inclined relative to one surface of the bearing portion on which the first ball member is disposed, and also inclined relative to another surface of the bearing portion that is connected to the stop member.

3. The lens driving device according to claim 1, wherein, The reinforcement includes: A first reinforcing surface extends from one end of the reinforcing portion toward the housing; and A second reinforcing surface extends from the other end of the reinforcing portion toward the housing, and The first reinforcing surface and the second reinforcing surface are perpendicular to each other within the bearing portion.

4. The lens driving device according to claim 2, wherein, The lens module also includes a lens bracket disposed on the support portion, and The lens holder includes a cutout portion opposite to the reinforcing portion.

5. The lens driving device according to claim 4, wherein, The cut portion includes a second chamfered surface opposite to the first chamfered surface.

6. A lens driving device, comprising: The lens module includes multiple lenses; A support unit is disposed within the housing and configured to move together with the lens module in the optical axis direction; as well as The stop member is connected to the bearing portion. The bearing portion includes a rigid member, which is configured to overlap with the portion of the bearing portion that is connected to the stop member, and the rigid member has an extension portion that extends in the optical axis direction.

7. The lens driving device according to claim 6, wherein, The rigid member is made of a material with higher structural stiffness than the material of the load-bearing portion, and the rigid member is configured to at least partially overlap the portion of the load-bearing portion that is connected to the stop.

8. The lens driving device according to claim 6, wherein, The rigid member includes a bottom portion disposed on the bottom surface of the bearing portion, and The extension portion bends and extends from the bottom portion in the direction of the optical axis.

9. The lens driving device according to claim 8, wherein, The length of the extension portion in the optical axis direction corresponds to the length of the bearing portion extending from the bottom surface of the bearing portion in the optical axis direction.

10. The lens driving device according to claim 6, wherein, The extended portions are arranged to be spaced apart from each other in a direction perpendicular to the optical axis, and The extension portion includes a plurality of extension portions, which are arranged to be spaced apart from each other in a direction perpendicular to both the optical axis direction and the other direction.

11. The lens driving device according to claim 6, wherein, The stop member is connected to the stop member connection portion provided on the bearing portion, and The length of the extended portion in the width direction perpendicular to the optical axis is less than the length of the stop member connecting portion in the width direction.

12. The lens driving device according to claim 11, wherein, The support portion includes a first ball rolling portion having a first ball member disposed between a surface of the housing and a surface of the support portion that are opposite to each other. The stop member connecting portion is disposed on another surface of the bearing portion adjacent to one surface of the bearing portion, and The center of the length of the extension portion in the width direction is positioned away from the center of the length of the stop member connecting portion in the width direction relative to the first ball rolling portion.

13. A camera module, including: The support unit is housed within the casing and accommodates the lens module. as well as The focus adjustment section is configured to drive the carrier in the optical axis direction. The first ball rolling portion and the stop portion are connected on different side surfaces of the bearing portion, and The supporting part includes: The reinforcing portion is located at the inner corner of the bearing portion, where the first ball rolling portion and the stop connecting portion intersect each other. A rigid member having an extension configured to overlap with the connecting portion of the stop member.

14. The camera module according to claim 13, wherein, The lens module includes a lens barrel in which multiple lenses are disposed, and a lens holder connected to the lens barrel. The lens holder includes a cutout portion positioned opposite the reinforcing portion.

15. The camera module according to claim 13, wherein, The rigid member includes a metallic material and a bottom portion disposed on the bottom surface of the bearing portion, and The extension portion bends and extends from the bottom portion in the direction of the optical axis.

16. The camera module according to claim 13, wherein, The center of the extension portion in the width direction perpendicular to the optical axis is positioned away from the center of the stop member connecting portion in the width direction relative to the center of the first ball rolling portion.

17. The camera module according to claim 13, further comprising: The image stabilization component is configured to drive the lens module in a direction perpendicular to the optical axis.

18. The camera module according to claim 17, wherein, The image stabilization component includes multiple coils and multiple electronic devices disposed within the housing, and The plurality of electronic devices includes at least three position sensors.

Images