Camera actuator and camera module comprising a camera actuator

Abstract

Embodiments of the present invention provide a camera actuator including a housing, a first member coupled to the housing, a mover including an optical member, a first magnetic body disposed in the first member, a second magnetic body disposed in the mover, and a tilt guide portion for guiding a tilt of the mover, wherein the mover includes a holder coupled to the optical member and a second member coupled to the holder, and the tilt guide portion is closely attached to the first member and the holder by a repulsive force between the first magnetic body and the second magnetic body.

Description

Technical Field

[0001] This disclosure relates to a camera actuator and a camera module including the camera actuator. Background Technology

[0002] A camera is a device for taking photos or videos of a subject and is mounted on portable devices, drones, vehicles, etc. Camera modules may have image stabilization (IS) functions to correct or prevent image shake caused by user movement to improve image quality, autofocus (AF) functions to automatically adjust the distance between the image sensor and the lens and thereby align the lens's focal length, and zoom functions to increase or decrease the magnification of distant objects through zoom lenses.

[0003] At the same time, the higher the pixel count, the higher the resolution of the image sensor, and the smaller the pixel size. As the pixel size decreases, the amount of light received in the same amount of time decreases. Therefore, when a camera has a higher pixel count, image shake caused by hand shakiness may be more pronounced due to slow shutter speeds in dark environments. As a representative IS technology, there is Optical Image Stabilizer (OIS) technology, which corrects motion by changing the optical path.

[0004] General-purpose OIS technology can detect camera motion using sensors such as gyroscopes, and can tilt or move the lens or the camera module including the lens and image sensor based on the detected motion. When the lens or the camera module including the lens and image sensor is tilted or moved for OIS purposes, it is necessary to additionally ensure sufficient space near the lens or camera module for tilting or movement.

[0005] On the other hand, camera actuators for OIS can be positioned around the lens. In this case, the camera actuators for OIS can include tilting actuators responsible for two axes perpendicular to the optical axis Z, namely, an actuator responsible for X-axis tilting and an actuator responsible for Y-axis tilting.

[0006] However, the demand for ultra-thin and ultra-compact camera modules presents significant space constraints for the arrangement of actuators used in OIS, and it may be difficult to guarantee sufficient space for the lens, or the camera module itself including the lens and image sensor, to tilt or move for OIS. Furthermore, as cameras have higher pixel counts, it is desirable to increase the size of the lens to increase the amount of light received. However, there may be limitations in increasing the lens size due to the space occupied by the actuators used for OIS.

[0007] Additionally, when zoom, AF, and OIS functions are all included in a camera module, there is a problem where the magnets for OIS and the magnets for AF or zoom are positioned close to each other, which can cause magnetic field interference.

[0008] On the other hand, in the case of a lens motion scheme, a Hall sensor is used to detect the position and motion of the lens.

[0009] The Hall sensor is connected to the driver IC, acquires lens position information, and transmits the acquired position information to the driver IC.

[0010] Typically, the driver IC and the Hall sensor are mounted on different substrates. However, recently, there's a trend towards mounting them on the same substrate to reduce noise and minimize size. In this case, multiple pads are formed on the substrate, and these pads are connected to the driver IC, while the Hall sensor is connected to the driver IC. That is, when the driver IC and the Hall sensor are mounted on the same substrate, the substrate does not have pads directly connected to the Hall sensor.

[0011] Here, the Hall sensor is mounted on a substrate using surface mount technology (SMT). In this case, approximately 3% to 4% of short-circuit defects occur during the SMT process of the Hall sensor. However, the substrate lacks pads for connecting to the Hall sensor, making it impossible to test the mounting status of the Hall sensor. Specifically, the mounting status of the Hall sensor is checked by measuring the Hall resistance, and to check the mounting status, testing should be performed via the pads connected to the driver IC. However, because the pads are connected to the Hall sensor via the driver IC rather than directly to the Hall sensor, direct testing of the Hall sensor is not possible.

[0012] Meanwhile, the aforementioned Hall sensor is mounted on the substrate along with the coil. Specifically, the Hall sensor is positioned on the substrate within the inner region of the coil. Furthermore, the movement of the lens is achieved by the electromagnetic force generated between the coil and the magnet. This electromagnetic force is affected by the separation distance between the coil and the magnet. Additionally, depending on the separation distance between the Hall sensor and the magnet, the magnetic flux of the magnet detected by the Hall sensor changes, thus affecting the position detection performance of the Hall sensor.

[0013] Typically, the coil height should be maintained to ensure sufficient thrust. As the coil height increases, the separation distance between the magnet and the Hall sensor increases, leading to a degradation in position detection performance. Summary of the Invention

[0014] Technical issues

[0015] The technical problem to be solved by this disclosure is to provide a camera actuator that maintains the connection between the mover and the housing by using the repulsive force between the first magnetic body and the second magnetic body, and to provide a camera module including the camera actuator.

[0016] In addition, the implementation is intended to provide a camera actuator suitable for ultra-thin, ultra-compact, and high-resolution cameras.

[0017] In addition, the embodiments aim to provide a camera actuator that can test the mounting status of the Hall sensor even when the driver IC and the Hall sensor are mounted on the same substrate, and to provide a camera module including the camera actuator.

[0018] In addition, the embodiments aim to provide a camera actuator that can increase thrust and also increase the sensitivity of the Hall sensor, and to provide a camera module including the camera actuator.

[0019] The problems addressed in the implementation are not limited to those described above, but also include other purposes or effects that can be understood from the technical solutions or implementation methods described later.

[0020] Technical solution

[0021] A camera actuator according to an embodiment of the present disclosure includes: a housing; a first member coupled to the housing; a mover including an optical member; a first magnetic body disposed on the first member; a second magnetic body disposed on the mover; and a tilting guide portion for guiding the tilting of the mover, wherein the mover includes a retainer coupled to the optical member and a second member coupled to the retainer, and wherein the tilting guide portion is in close contact with the first member and the retainer by the repulsive force of the first magnetic body and the second magnetic body.

[0022] The first component may include a first through hole and a second through hole spaced apart from the first through hole, and the second component may include: a component base; a first extension located at the edge of the component base and extending toward the retainer; and a second extension spaced apart from the first extension and extending toward the mover.

[0023] The first extension can pass through the first through hole, and the second extension can pass through the second through hole.

[0024] The first component may include: an upper component disposed above the first through hole and the second through hole; a lower component disposed below the first through hole and the second through hole; a connecting component connecting the upper component and the lower component; a first protrusion extending from one side of the upper component toward the retainer; and a second protrusion extending from the other side of the upper component toward the retainer, wherein the first protrusion and the second protrusion may be disposed between the upper component and the lower component.

[0025] A camera actuator according to an embodiment may include: a housing; a first member coupled to the housing; a mover including a retainer; a first magnetic body disposed on the first member; a second magnetic body disposed on the mover; and a tilting guide portion disposed between the retainer and the first member, wherein the mover may include the second member coupled to the retainer, wherein a portion of the first member may be disposed between the second member and the retainer, and wherein a first surface of the first magnetic body and a second surface of the second magnetic body facing the first surface may have the same polarity.

[0026] The center of the second magnetic body and the center of the second component can be set at different locations from each other.

[0027] The center of the second magnetic material can be located above or below the center of the second component.

[0028] The area of ​​the second magnetic body can be larger than that of the first magnetic body, and the first magnetic body can be located on an imaginary straight line extending from the two ends of the second magnetic body along the optical axis.

[0029] A camera actuator according to an embodiment may include: a housing; a first member coupled to the housing; a first magnetic body disposed on the first member; a second magnetic body corresponding to the first magnetic body; a second member disposed on the second member; a retainer coupled to the second member; and a tilting guide portion disposed between the retainer and the first member, wherein a portion of the first member may be disposed between the second member and the retainer.

[0030] The first and second magnetic bodies can face each other with the same polarity.

[0031] The camera actuator according to the embodiment may include: a base; a guide portion disposed inside the base; a lens assembly that moves along the guide portion; and a substrate disposed outside the base, wherein the lens assembly may include a lens barrel provided with a lens and a mover provided with a magnet, wherein the substrate may include an insulating unit, a coil unit disposed on the insulating unit facing the magnet, a position detection sensor disposed in an internal region of the coil unit, and a test pad disposed in the insulating unit, wherein the test pad is directly connected to the position detection sensor via a connecting wire.

[0032] Additionally, the test pads can be configured to face the magnet in such a way that the coil unit is placed between the test pads and the magnet.

[0033] Additionally, the substrate may include a driver IC, and the position detection sensor may include a first terminal connected to a test pad and a second terminal connected to the driver IC.

[0034] Additionally, the insulating unit may include: an insulating layer having a surface facing the magnet, and test pads and connecting lines disposed on said surface; a first protective layer formed on said surface of the insulating layer and having a first open area exposing the test pads; and a second protective layer formed on said surface of the first protective layer and having a second open area exposing the first open area.

[0035] In addition, the coil unit can be configured on one surface of the second protective layer to cover the first open area and the second open area.

[0036] In addition, the outer side of the base can be configured to cover the first open area of ​​the first protective layer and the second open area of ​​the second protective layer.

[0037] In addition, the second protective layer may have an open mounting recess that allows the coil unit to be installed, and the coil unit may be installed in the mounting recess of the second protective layer.

[0038] Alternatively, the position detection sensor may include multiple Hall sensors arranged spaced apart from each other in the internal region of the coil unit.

[0039] Additionally, the guiding portion may include a first guiding portion disposed on a first inner portion adjacent to a first sidewall of the base and a second guiding portion disposed on a second inner portion adjacent to a second sidewall of the base. The lens assembly may include a first lens assembly and a second lens assembly. The first lens assembly includes a first lens barrel disposed with a first lens and a first mover disposed with a first magnet. The second lens assembly includes a second lens barrel disposed with a second lens and a second mover disposed with a second magnet. The substrate may include a first substrate disposed outside the first sidewall and a second substrate disposed outside the second sidewall. The coil unit, test pad, and position detection sensor may be disposed in the first substrate region and the second substrate region, respectively.

[0040] Meanwhile, the camera actuator according to the embodiment may include: a housing; an image shake control unit disposed in the housing; a mover disposed in the image shake control unit; and a tilt guide portion disposed between the housing and the mover, wherein the mover may include a prism mover and a prism disposed on the prism mover, wherein the image shake control unit may include: a substrate; a coil unit disposed on a surface of the substrate facing the prism mover; a position sensor disposed in an internal region of the coil unit; and a magnet disposed on the prism mover facing the coil unit, wherein a test pad may be configured to face the magnet such that the coil unit is placed between the test pad and the magnet, and the test pad may be directly connected to the position detection sensor via a connecting wire.

[0041] Additionally, the substrate may include: an insulating layer having a surface facing the magnet, and test pads and connecting lines disposed on said surface; a first protective layer formed on said surface of the insulating layer and having a first open area exposing the test pads; and a second protective layer formed on said surface of the first protective layer and having a second open area exposing the first open area, wherein the coil unit may be disposed on said surface of the second protective layer to cover the first open area and the second open area.

[0042] In addition, the second protective layer may have an open mounting recess that allows the coil unit to be installed, and the coil unit may be installed in the mounting recess of the second protective layer.

[0043] Meanwhile, the camera module according to the embodiment may include a first camera actuator and a second camera actuator, wherein the first camera actuator performs an autofocus or zoom function, and the second camera actuator performs an optical image stabilizer (OIS) function.

[0044] Additionally, light incident on the camera module from the outside changes its path through the second camera actuator and then incident on the first camera actuator.

[0045] Beneficial effects

[0046] According to embodiments of this disclosure, the tilting guide portion comes into close contact with the retainer via a first magnetic body and a second magnetic body that generate a repulsive force, thereby enabling a camera actuator with enhanced bonding force.

[0047] Furthermore, according to the embodiments, camera actuators suitable for ultra-thin, ultra-compact, and high-resolution cameras can be provided. In particular, camera actuators for OIS can be efficiently configured without increasing the overall size of the camera module.

[0048] In this embodiment, the Hall sensor, driver IC, and coil unit are disposed on a first substrate. In this case, the first substrate includes test pads directly connected to the Hall sensor. That is, while the driver IC, Hall sensor, and coil unit are disposed on the same substrate, separate test pads for testing the mounting condition of the Hall sensor are formed on the first substrate. This allows for effective inspection of mounting defects that may occur during Hall sensor mounting, thereby improving reliability.

[0049] Furthermore, according to the embodiments, the test pads can be formed on the first substrate in an exposed manner. In this case, the test pads may cause reliability issues when they come into contact with other components. In one embodiment, the exposed surface of the test pads can be covered by coil units. In another embodiment, the exposed surface of the test pads can be covered by the sidewalls of the base. Therefore, in the embodiments, it is not necessary to form a separate protective layer for covering the exposed surface of the test pads, thereby simplifying the manufacturing process and reducing manufacturing costs. In addition, in the embodiments, design problems caused by the protective layer can be solved, thus ensuring design freedom.

[0050] Additionally, the first substrate according to the embodiment may include a mounting recess formed in the region where the coil unit is disposed. In this case, the mounting recess is an open area constituting the cover layer of the first substrate. Therefore, in the embodiment, the depth of the mounting recess can be reduced by decreasing the distance between the Hall sensor and the magnet, and the sensitivity of the Hall sensor can be improved while increasing the thrust of the drive unit.

[0051] According to embodiments of this disclosure, tilting in the X-axis direction and tilting in the Y-axis direction will not cause magnetic field interference with each other, and tilting in the X-axis direction and tilting in the Y-axis direction can also be achieved by means of a stable structure and achieve accurate OIS function without causing magnetic field interference with actuators used for AF or zoom.

[0052] According to embodiments of this disclosure, sufficient light can be ensured by addressing the size limitations of the lens, and OIS with low power consumption can also be achieved. Attached Figure Description

[0053] Figure 1 This is a perspective view of the camera module according to the implementation method;

[0054] Figure 2 This is an exploded perspective view of the camera module according to the implementation method;

[0055] Figure 3 It is along Figure 1 A cross-sectional view taken from line AA' in the diagram;

[0056] Figure 4 This is a perspective view of the first camera actuator according to the embodiment;

[0057] Figure 5 This is an exploded perspective view of the first camera actuator according to the embodiment;

[0058] Figure 6a This is a perspective view of the first housing of the first camera actuator according to the embodiment;

[0059] Figure 6b In the context of Figure 6a 3D images from different directions;

[0060] Figure 6c This is a front view of the first housing of the first camera actuator according to an embodiment;

[0061] Figure 7 This is a perspective view of the optical components of the first camera actuator according to the embodiment;

[0062] Figure 8a This is a perspective view of the holder of the first camera actuator according to the embodiment;

[0063] Figure 8b This is a bottom view of the holder of the first camera actuator according to the embodiment;

[0064] Figure 8c This is a front view of the holder of the first camera actuator according to the embodiment;

[0065] Figure 8dThis is a rear view of the second component of the first camera actuator according to an embodiment;

[0066] Figure 8e This is a bottom view of the second component of the first camera actuator according to the embodiment;

[0067] Figure 9a This is a perspective view of the tilt guide portion of the first camera actuator according to the embodiment;

[0068] Figure 9b In the context of Figure 9a 3D images from different directions;

[0069] Figure 9c It is along Figure 9a A cross-sectional view taken from line FF' in the diagram;

[0070] Figure 10 This is a view showing the first drive unit of the first camera actuator according to an embodiment;

[0071] Figure 11a This is a perspective view of the first camera actuator according to the embodiment;

[0072] Figure 11b It is along Figure 11a A cross-sectional view of line PP' in the diagram;

[0073] Figure 11c It is along Figure 11a A cross-sectional view of line QQ' in the image;

[0074] Figure 12a This is a perspective view of the first camera actuator according to the embodiment;

[0075] Figure 12b It is along Figure 12a A cross-sectional view taken from line SS' in the diagram;

[0076] Figure 12c Is Figure 12b An exemplary view of the motion of the first camera actuator shown in the figure;

[0077] Figure 13a It is along Figure 12a A cross-sectional view taken from line RR' in the diagram;

[0078] Figure 13b Is Figure 13a A schematic view showing the motion of the first camera actuator;

[0079] Figure 14 This is a view showing the assembly sequence of the first camera actuator according to an embodiment;

[0080] Figure 15 This is a perspective view of the second camera actuator according to the embodiment;

[0081] Figure 16 This is an exploded perspective view of the second camera actuator according to the embodiment;

[0082] Figure 17 It is along Figure 15 A cross-sectional view taken from line DD' in the diagram;

[0083] Figure 18 It is along Figure 15 A cross-sectional view of line EE' in the diagram;

[0084] Figure 19 This is a perspective view of a camera module according to another embodiment;

[0085] Figure 20a Some parts were omitted from it. Figure 19 A 3D view of the camera module;

[0086] Figure 20b yes Figure 20a Exploded stereoscopic view of the camera module;

[0087] Figure 21 This is a perspective view of the first camera actuator according to the embodiment;

[0088] Figure 22 Some parts were omitted from it. Figure 21 A perspective view of a camera actuator according to an embodiment is shown in the figure.

[0089] Figure 23 Some parts were omitted from it. Figure 21 An exploded perspective view of a camera actuator according to an embodiment is shown in the figure.

[0090] Figure 24 This is an enlarged perspective view of the first guide portion and the second guide portion in the camera actuator according to the embodiment;

[0091] Figure 25a Is Figure 23 A perspective view of the first lens assembly in a camera actuator according to an embodiment is shown in the figure.

[0092] Figure 25b Some parts were removed from it. Figure 25a A perspective view of the first lens assembly shown in the figure;

[0093] Figure 26 This is a schematic view of the drive in a camera actuator according to an embodiment;

[0094] Figure 27aThis is a perspective view of the first substrate according to the first embodiment, viewed from the first direction, with the first coil unit removed.

[0095] Figure 27b This is a perspective view of the first substrate according to the first embodiment, viewed from the second direction, with the first coil unit removed.

[0096] Figure 27c This is a perspective view of a first substrate according to a first embodiment, in which a first coil unit is provided;

[0097] Figure 28a This is a cross-sectional view of the first substrate according to the first embodiment;

[0098] Figure 28b This is a plan view of the first substrate according to the first embodiment, from which the first coil unit has been removed;

[0099] Figure 28c It is a plan view of the first substrate according to the first embodiment, in which the first coil unit is provided;

[0100] Figure 29a This is a perspective view of the first substrate according to the second embodiment, viewed from the first direction, with the first coil unit removed.

[0101] Figure 29b This is a perspective view of the first substrate according to the second embodiment, with the first coil unit removed, as viewed from the second direction.

[0102] Figure 29c This is a view showing the bonding of the first substrate and the base according to the second embodiment;

[0103] Figure 29d This is a view showing the structure of the first substrate according to the second embodiment in a state where the base is attached;

[0104] Figure 30a This is a perspective view of a first substrate according to a third embodiment, which is provided with coil units;

[0105] Figure 30b This is a perspective view of a first substrate according to a third embodiment, from which the coil unit has been removed;

[0106] Figure 30c This is a cross-sectional view of the first substrate according to the third embodiment;

[0107] Figure 31 This is a view comparing the separation distance between the Hall sensor and the magnet in the implementation and comparative examples;

[0108] Figure 32It is magnetic flux data based on the separation distance between the magnet and the Hall sensor in the implementation method and comparative examples;

[0109] Figure 33 This is a perspective view of the first drive unit in the camera actuator according to the embodiment;

[0110] Figure 34a This is a perspective view of the second camera actuator of the camera module according to the embodiment;

[0111] Figure 34b This is an exploded perspective view of the second camera actuator according to the embodiment;

[0112] Figures 35 to 38 are perspective views of the various components of the second camera actuator;

[0113] Figure 39 and Figure 40 This is a view of the assembly relationship between the housing, the mover, and the moving protrusion in the second camera actuator;

[0114] Figure 41a and Figure 41b This is an exemplary view illustrating the operation of a second camera actuator according to an embodiment;

[0115] Figure 42 This is an exemplary view of an integral body in a camera module according to another embodiment;

[0116] Figure 43 It is a perspective view of a mobile terminal that applies a camera module according to an embodiment; and

[0117] Figure 44 It is a perspective view of a vehicle equipped with a camera module according to the implementation method. Detailed Implementation

[0118] This disclosure may have various embodiments including multiple modifications, and specific embodiments will be described with reference to the accompanying drawings. However, this is not intended to limit this disclosure to specific embodiments, and it should be understood that all modifications, equivalents, and alternatives are included within the subject matter and scope of this disclosure.

[0119] Terms including ordinal numbers such as first, second, etc., may be used to refer to various elements, but these elements are not limited by the terms. These terms are used only for the purpose of distinguishing one element from another. For example, without departing from the scope of this disclosure, a second element may be referred to as a first element, and similarly, a first element may be referred to as a second element. The term "and / or" includes any one or any combination of the listed items.

[0120] When it is said that an element is "combined with / attached to another element" or "connected to / attached to another element," it will be understood that the element is directly combined with or connected to the other element, either directly or via any other element. On the other hand, when it is said that an element is "directly combined with / directly attached to another element" or "directly connected to / directly attached to another element," it will be understood that there is no element situated between the two elements.

[0121] The terminology used in this disclosure is for describing certain embodiments only and is not intended to limit the scope of this disclosure. Singular expressions may include plural expressions unless the context clearly specifies otherwise. In this disclosure, terms such as “comprising,” “including,” and “having” indicate the presence of the described elements, components, operations, functions, features, etc., but do not preclude the presence of one or more other elements, components, operations, functions, features, etc., or the possibility of adding one or more other elements, components, operations, functions, features, etc.

[0122] Unless otherwise specified, all terms used herein, including technical or scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms used herein that are defined in a general dictionary may be interpreted as having the same or similar meaning as in the context of the relevant field, and shall not be interpreted as having an ideal or overly formal meaning unless expressly defined herein.

[0123] In the following text, the embodiments will be described in detail with reference to the accompanying drawings. Identical or corresponding elements are given the same reference numerals, and repeated descriptions of such identical or corresponding elements will be omitted.

[0124] Figure 1 This is a perspective view of the camera module according to the implementation method. Figure 2 This is an exploded perspective view of the camera module according to the implementation method, and Figure 3 It is along Figure 1 The cross-sectional view taken from line AA' in the diagram.

[0125] Reference Figure 1 and Figure 2 The camera module 1000 according to an embodiment may include a cover CV, a first camera actuator 1100, a second camera actuator 1200, and a circuit board 1300. Here, the first camera actuator 1100 may be interchangeably referred to as the first actuator, and the second camera actuator 1200 may be interchangeably referred to as the second actuator. The first camera actuator 1100 and the second camera actuator 1200 may also correspond to the first camera actuator and the second camera actuator described below in another embodiment. Furthermore, Figures 19 to 24The first camera actuator and the second camera actuator described herein can be respectively used Figures 1 to 18 The first camera actuator 1100 and the second camera actuator 1200 described herein are replaced.

[0126] The cover CV can cover the first camera actuator 1100 and the second camera actuator 1200. The bonding force between the first camera actuator 1100 and the second camera actuator 1200 can be improved by the cover CV.

[0127] Furthermore, the cover CV can be made of a material that blocks electromagnetic waves. Therefore, the first camera actuator 1100 and the second camera actuator 1200 in the cover CV can be easily protected.

[0128] The first camera actuator 1100 may be an optical image stabilizer (OIS) actuator. For example, the first camera actuator 1100 may cause an optical component to move in a direction perpendicular to the optical axis.

[0129] The first camera actuator 1100 may include a lens disposed in a predetermined lens barrel (not shown). The lens may include a fixed focal length lens. A fixed focal length lens may also be referred to as a "single focal length lens" or "single lens".

[0130] The first camera actuator 1100 can change the optical path. In one embodiment, the first camera actuator 1100 can vertically change the optical path using optical components (e.g., prisms or mirrors) within it. With this configuration, even if the thickness of the mobile terminal is reduced, a lens configuration larger than the thickness of the mobile terminal can be incorporated into the mobile terminal by changing the optical path, and zoom, autofocus (AF), and OIS functions can be performed.

[0131] However, this is not limited to the above, and the first camera actuator 1100 can change the optical path vertically or at a predetermined angle multiple times.

[0132] The second camera actuator 1200 may be located at the rear end of the first camera actuator 1100. The second camera actuator 1200 may be coupled to the first camera actuator 1100. This coupling may be performed in various ways.

[0133] Alternatively, the second camera actuator 1200 can be a zoom actuator or an autofocus (AF) actuator. For example, the second camera actuator 1200 can support one or more lenses and can perform autofocus or zoom functions by moving the lenses in response to a control signal from a predetermined controller.

[0134] One or more lenses can be moved independently or individually along the optical axis.

[0135] Circuit board 1300 may be disposed at the rear end of the second camera actuator 1200. Circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100. In addition, multiple circuit boards 1300 may be present.

[0136] The camera module according to the implementation method may consist of a single camera module or multiple camera modules. For example, multiple camera modules may include a first camera module and a second camera module.

[0137] The first camera module may include a single actuator or multiple actuators. For example, the first camera module may include a first camera actuator 1100 and a second camera actuator 1200.

[0138] The second camera module may include an actuator (not shown) disposed in a predetermined housing (not shown) and capable of driving a lens. The actuator may be a voice coil motor, a miniature actuator, a silicon actuator, etc., and may be applied in various ways, such as, but not limited to, electrostatic, thermal, dual piezoelectric crystal, and electrostatic force types. Furthermore, in this specification, the camera actuator may be referred to as an actuator, etc. Additionally, a camera module including multiple camera modules can be installed in various electronic devices, such as mobile terminals.

[0139] Reference Figure 3 According to the embodiments, the camera module may include a first camera actuator 1100 that performs OIS function and a second camera actuator 1200 that performs zoom function and autofocus (AF) function.

[0140] Light can enter the camera module or the first camera actuator through an open area located on the upper surface of the first camera actuator 1100. That is, light can enter the interior of the first camera actuator 1100 along the optical axis (e.g., the X-axis direction), and the optical path can be changed to a vertical direction (e.g., the Z-axis direction) by optical components. Additionally, light can pass through the second camera actuator 1200 and enter the image sensor IS (path) located at one end of the second camera actuator 1200.

[0141] In this specification, the lower surface refers to a side surface in the first direction. Furthermore, the first direction is the X-axis direction in the figures and can be used interchangeably with the second axial direction. The second direction is the Y-axis direction in the figures and can be used interchangeably with the first axial direction. The second direction is perpendicular to the first direction. Additionally, the third direction is the Z-axis direction in the figures and can be used interchangeably with the third axial direction. The third direction is perpendicular to both the first and second directions. The third direction (Z-axis direction) corresponds to the direction of the optical axis, and the first direction (X-axis direction) and the second direction (Y-axis direction) are perpendicular to the optical axis and can be tilted by the second camera actuator. Furthermore, the horizontal direction can refer to the first and second directions, and the vertical direction can refer to a direction perpendicular to at least one of the first and second directions. For example, the horizontal direction can refer to the X-axis and Y-axis directions in the figures, and the vertical direction can refer to the Z-axis direction perpendicular to the X-axis and Y-axis directions in the figures. In the following description of the first camera actuator 1100 and the second camera actuator 1200, the optical axis direction is the third direction (Z-axis direction), which will be used as the basis for the following description.

[0142] Additionally, in this specification, "inside" can refer to the direction from the cover CV toward the first camera actuator, and "outside" can refer to the opposite direction. That is, the first camera actuator and the second camera actuator can be located inside the cover CV, and the cover CV can be located outside the first camera actuator or the second camera actuator.

[0143] With this configuration, the camera module according to the embodiment can improve the space constraints of the first and second camera actuators by changing the optical path. That is, in response to the change in the optical path, the camera module according to the embodiment can extend the optical path while minimizing the thickness of the camera module. Furthermore, the second camera actuator can provide a high range of magnification by controlling the focus, etc., on the extended optical path.

[0144] Furthermore, the camera module according to the embodiment can achieve OIS by controlling the optical path through the first camera actuator, thereby minimizing the occurrence of eccentricity or tilt and presenting optimal optical performance.

[0145] Furthermore, the second camera actuator 1200 may include an optical system and a lens driving unit. For example, the second camera actuator 1200 may include at least one of a first lens assembly, a second lens assembly, a third lens assembly, and a guide pin.

[0146] Additionally, the second camera actuator 1200 may include a coil and a magnet to perform high magnification zoom functionality.

[0147] For example, the first and second lens assemblies can be movable lenses that move via coils, magnets, and guide pins, and the third lens assembly can be a fixed lens, but this is not limiting. For example, the third lens assembly can function as a focuser (concentrator) that images light at a specific location, and the first lens assembly can function as a transducer that re-images the image formed by the third lens assembly to another location. Meanwhile, the magnification variation in the first lens assembly can be large because the distance to the object or the image distance varies greatly, and the first lens assembly, as a transducer, can play an important role in changing the focal length or magnification of the optical system. On the other hand, the imaging point formed by the first lens assembly as a transducer can vary slightly depending on the location. Therefore, the second lens assembly can perform a position compensation function for the image formed by the transducer. For example, the second lens assembly can function as a compensator that accurately forms the imaging point formed by the first lens assembly as a transducer at the actual image sensor location. For example, the first and second lens assemblies can be driven by electromagnetic force through the interaction between the coil and the magnet. The above description can be applied to the lens assemblies described later. Furthermore, the first to third lens assemblies can move along the optical axis, i.e., the third direction. Additionally, the first to third lens assemblies can move individually or in relation to each other along the third direction.

[0148] Furthermore, when the actuators for OIS and AF or zoom are provided according to embodiments of this disclosure, magnetic field interference with the magnets used for AF or zoom can be prevented during OIS operation. Because the first drive magnet of the first camera actuator 1100 is separately disposed from the second camera actuator 1200, magnetic field interference between the first camera actuator 1100 and the second camera actuator 1200 can be prevented. In this specification, OIS can be used interchangeably with terms such as hand-eye correction, optical image stabilization, optical image correction, and shake correction.

[0149] Figure 4 This is a perspective view of the first camera actuator according to the embodiment, and Figure 5 This is an exploded perspective view of the first camera actuator according to the embodiment.

[0150] Reference Figure 4 and Figure 5 According to the embodiment, the first camera actuator 1100 includes a first housing 1120, a mover 1130, a rotation unit 1140, a first drive unit 1150, a first component 1126, and a second component 1131a.

[0151] The mover 1130 may include a retainer 1131 and an optical component 1132 disposed in the retainer 1131. The rotation unit 1140 may include a tilting guide portion 1141, and a second magnetic body 1142 and a first magnetic body 1143 having different polarities to compress the tilting guide portion 1141. The first drive unit 1150 includes a drive magnet 1151, a drive coil 1152, a Hall sensor unit 1153, a first substrate unit 1154, and a yoke unit 1155.

[0152] The first camera actuator 1100 may include a shield (not shown). The shield (not shown) may be positioned on the outermost part of the first camera actuator 1100 to surround the rotation unit 1140 and the first drive unit 1150, as will be described later.

[0153] A shield (not shown) can block or reduce electromagnetic waves generated from the outside. That is, the shield (not shown) can reduce the occurrence of malfunctions in the rotating unit 1140 or the first drive unit 1150.

[0154] The first housing 1120 may be located inside a shield (not shown). When the shield is not present, the first housing 1120 may be located on the outermost surface of the first camera actuator.

[0155] Additionally, the first housing 1120 may be located inside the first substrate unit 1154, which will be described later. The first housing 1120 may be fitted into or fastened to a shield (not shown).

[0156] The first housing 1120 may include a first housing side 1121, a second housing side 1122, a third housing side 1123, and a fourth housing side 1124. A detailed description will follow.

[0157] The first member 1126 may be disposed within the first housing 1120. The first member 1126 may be disposed between the second member 1131a and the housing. The first member 1126 may be disposed within or included in the housing. The first member 1126 may be coupled to the retainer 1131 through the second member 1131a. The first member 1126 may be penetrated by the second member 1131a, and the second member 1131a may be coupled to the retainer 1131. Therefore, at least a portion of the first member 1126 may be positioned between the second member 1131a and the retainer 1131. A related description will follow.

[0158] The mover 1130 includes a retainer 1131 and an optical component 1132 mounted on the retainer 1131.

[0159] The retainer 1131 can be disposed in the receiving space 1125 of the first housing 1120. The retainer 1131 may include a first retainer outer surface to a fourth retainer outer surface corresponding to the first housing side 1121, the second housing side 1122, the third housing side 1123, and the first member 1126, respectively. For example, the first retainer outer surface to the fourth retainer outer surface may correspond to or face the inner surface of the first housing side 1121, the second housing side 1122, the third housing side 1123, and the first member 1126, respectively.

[0160] Additionally, the retainer 1131 may include a second member 1131a disposed in the fourth mounting recess. A detailed description will follow.

[0161] Optical component 1132 can be mounted on retainer 1131. For this purpose, retainer 1131 can have a mounting surface formed by a receiving recess. In embodiments, optical component 1132 can be formed of a mirror or prism. Although a prism is shown as an example below, the optical component can consist of multiple lenses as described in the above embodiments. Alternatively, optical component 1132 can consist of multiple lenses as well as a prism or mirror. Additionally, optical component 1132 may include a reflector disposed within it. However, this is not limiting.

[0162] Optical component 1132 can reflect light reflected from the outside (e.g., an object) into the camera module. In other words, optical component 1132 can alter the path of the reflected light, thereby improving the space constraints of the first and second camera actuators. Therefore, the camera module can provide a high range of magnifications by extending the optical path while minimizing thickness.

[0163] Therefore, the second member 1131a can be coupled to the retainer 1131. The second member 1131a can be disposed outside the retainer 1131 and inside the housing. Additionally, the second member 1131a can be disposed in an additional groove in a region of the retainer 1131 other than the fourth mounting groove located on the outer surface of the fourth retainer. Thus, the second member 1131a can be coupled to the retainer 1131, and at least a portion of the first member 1126 can be positioned between the second member 1131a and the retainer 1131. For example, at least a portion of the first member 1126 can pass through the space formed between the second member 1131a and the retainer 1131.

[0164] Furthermore, the second component 1231a may have a structure separate from the retainer 1131. With this configuration, the assembly of the first camera actuator can be performed as easily as will be described later. Alternatively, the second component 1131a may be integrally formed with the retainer 1131, but will be described later as a separate structure.

[0165] The rotating unit 1140 includes an inclined guide portion 1141, and a second magnetic body 1142 and a first magnetic body 1143 with different polarities to compress the inclined guide portion 1141.

[0166] The tilting guide portion 1141 can be coupled to the aforementioned mover 1130 and first housing 1120. Specifically, the tilting guide portion 1141 can be disposed between the retainer 1131 and the first member 1126. Therefore, the tilting guide portion 1141 can be coupled to the mover 1130 of the retainer 1131 and the first housing 1120. However, unlike the above description, in this embodiment, the tilting guide portion 1141 can be disposed between the first member 1126 and the retainer 1131. Specifically, the tilting guide portion 1141 can be positioned between the first member 1126 and the fourth mounting groove of the retainer 1131.

[0167] The second component 1131a, the first component 1126, the tilting guide portion 1141, and the retainer 1131 can be sequentially arranged in the third direction (Z-axis direction). Additionally, the second magnetic body 1142 and the first magnetic body 1143 can be respectively mounted in the first groove gr1 formed in the second component 1131a and the second groove gr2 formed in the first component 1126. In this embodiment, the first groove gr1 and the second groove gr2 may have different positions than those described in another embodiment. However, the first groove gr1 is located in the second component 1131a and moves integrally with the retainer, and the second groove gr2 is positioned in the first component 1126 to correspond to the first groove gr1 and is engaged with the first housing 1120. Therefore, these terms are used interchangeably.

[0168] Furthermore, the tilting guide portion 1141 can be configured to be adjacent to the optical axis. Therefore, the actuator according to the embodiment can easily change the optical path based on the tilt of the first axis and the second axis, as will be described later.

[0169] The tilting guide portion 1141 may include a first protrusion spaced apart from each other in a first direction (X-axis direction) and a second protrusion spaced apart from each other in a second direction (Y-axis direction). Furthermore, the first and second protrusions may protrude in opposite directions. A detailed description will follow.

[0170] Additionally, as described above, the second magnetic body 1142 can be positioned within the second member 1131a. Furthermore, the first magnetic body 1143 can be positioned within the first member 1126.

[0171] The second magnetic body 1142 and the first magnetic body 1143 may have the same polarity. For example, the second magnetic body 1142 may be a magnet with an N pole, and the first magnetic body 1143 may be a magnet with an N pole. Alternatively, the second magnetic body 1142 may be a magnet with an S pole, and the first magnetic body 1143 may be a magnet with an S pole.

[0172] For example, the first pole surface of the first magnetic body 1143 and the second pole surface of the second magnetic body 1142 facing the first pole surface can have the same polarity.

[0173] The second magnetic body 1142 and the first magnetic body 1143 can generate a repulsive force between them through the polarity described above. With this configuration, this repulsive force can be applied to the second member 1131a or retainer 1131 coupled to the second magnetic body 1142, and the first member 1126 or first housing 1120 coupled to the first magnetic body 1143. Simultaneously, the repulsive force applied to the second member 1131a can be transmitted to the retainer 1131 coupled to the second member 1131a. Therefore, the repulsive force can compress the inclined guide portion 1141 disposed between the second member 1131a and the first member 1126. That is, the repulsive force can maintain the position of the inclined guide portion 1141 between the retainer 1131 and the first housing 1120 (or the first member 1126). With this configuration, the position between the mover 1130 and the first housing 1120 can be maintained even during X-axis or Y-axis tilting. In addition, the tilting guide portion can make close contact with the first member 1126 and the retainer 1131 through the repulsive force between the first magnetic body 1143 and the second magnetic body 1142.

[0174] The first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor unit 1153, a first substrate unit 1154, and a magnetic yoke unit 1155. These details will be described later.

[0175] Figure 6a This is a perspective view of the first housing of the first camera actuator according to the embodiment. Figure 6b In the context of Figure 6a 3D images from different directions, and Figure 6c This is a front view of the first housing of the first camera actuator according to an embodiment.

[0176] Reference Figures 6a to 6c According to the embodiment, the first housing 1120 may include a first housing side 1121 to a fourth housing side 1124. Additionally, the first member 1126 may be integrally formed with the first housing 1120. Therefore, the first member 1126 may be a component included in the first housing 1120. That is, the first housing 1120 may be integrally formed with the first member 1126. Alternatively, the first housing 1120 may include the first member 1126.

[0177] The first housing side 1121 and the second housing side 1122 may be arranged to face each other. In addition, the third housing side 1123 and the fourth housing side 1124 may be arranged to face each other.

[0178] The third housing side 1123 and the fourth housing side 1124 can be disposed between the first housing side 1121 and the second housing side 1122.

[0179] The third housing side 1123 and the fourth housing side 1124 can contact the first housing side 1121 and the second housing side 1122. Additionally, the third housing side 1123 can be the lower surface of the first housing 1120. Furthermore, the fourth housing side 1124 can be the upper surface of the first housing 1120. Additionally, the description of direction can be applied in the same manner as described above.

[0180] The first housing side portion 1121 may have a first housing hole 1121a. The first coil, which will be described later, may be positioned in the first housing hole 1121a.

[0181] Additionally, the second housing side portion 1122 may have a second housing hole 1122a. The second coil 1152b, which will be described later, may be positioned in the second housing hole 1122a.

[0182] Alternatively, the first housing side 1121 and the second housing side 1122 may be the side surfaces of the first housing 1120.

[0183] The first and second coils can be coupled to the first substrate unit. In one embodiment, the first and second coils can be electrically connected to the first substrate unit, allowing current to flow. This current is a component of the electromagnetic force capable of tilting the second camera actuator relative to the X-axis.

[0184] Additionally, the third housing side portion 1123 may have a third housing hole 1123a.

[0185] The third coil, which will be described later, can be positioned in the third housing hole 1123a. Additionally, the third coil 1152c can be electrically connected to and coupled to the first substrate unit that contacts the first housing 1120. Therefore, the third coil electrically connected to the first substrate unit can receive current from the first substrate unit. This current is a component of the electromagnetic force capable of tilting the second camera actuator relative to the Y-axis.

[0186] The first component 1126 can be disposed between the first housing side 1121 and the fourth housing side 1124. Therefore, the first component 1126 can be positioned on the third housing side 1123. For example, the first component 1126 can be located on one side. Based on the third orientation, the first component 1126 and the retainer can be positioned sequentially.

[0187] The fourth housing side 1124 may be disposed between the first housing side 1121 and the second housing side 1122 and contact the first housing side 1121, the second housing side 1122 and the third housing side 1123.

[0188] Additionally, the fourth housing side portion 1124 may have a fourth housing aperture 1124a. The fourth housing aperture 1124a may be located above the optical component. Therefore, light can pass through the fourth housing aperture 1124a and be incident on the optical component.

[0189] Additionally, the first housing 1120 may have a receiving space 1125 formed by the first housing side 1121 to the fourth housing side 1124. The first member 1126, the second member 1131a, and the mover 1130 may be positioned in the receiving space 1125.

[0190] Additionally, the first housing 1120 may also include a fifth housing side facing the first member 1126. The fifth housing side may be disposed between the first housing side 1121 and the second housing side 1122, and contact the first housing side 1121, the second housing side 1122, and the third housing side 1123. Furthermore, the fifth housing side may have an opening to provide a path for light reflected from the optical member 1132 to move through. Additionally, the fifth housing side may include a protrusion or a recess to provide easy engagement with other camera actuators adjacent to the fifth housing side. With this configuration, by not only providing an optical path but also improving the bonding force between the fifth housing side, which has an opening providing the optical path, and other components, movement of the opening due to separation, etc., can be suppressed, thereby minimizing changes in the optical path.

[0191] Additionally, as described above, the first component 1126 may be combined with and included in the first housing 1120. That is, the first housing 1120 may include the first component 1126.

[0192] Alternatively, the first component 1126 may be disposed within the first housing 1120. Alternatively, the first component 1126 may be located within the first housing 1120.

[0193] Additionally, the first component 1126 can be coupled to the first housing 1120. In one embodiment, the first component 1126 can be positioned between the first housing side 1121 and the second housing side 1122. Alternatively, the first component 1126 can be positioned between the third housing side 1123 and the fourth housing side 1124.

[0194] Additionally, the first component 1126 can be positioned on the third housing side 1123 and contact the first housing side 1121 to the third housing side 1123.

[0195] Additionally, the first stop 1121b can be positioned on the inner surface of the first housing side 1121. Additionally, the second stop 1122b can be positioned on the inner surface of the second housing side 1122.

[0196] The first stop 1121b and the second stop 1122b can be symmetrically positioned relative to a first direction (X-axis direction). The first stop 1121b and the second stop 1122b can extend along the first direction (X-axis direction). With this configuration, even when the first member 1126 moves into the first housing 1120, its position can be maintained by the first stop 1121b and the second stop 1122b. In other words, the first stop 1121b and the second stop 1122b can maintain the position of the first member 1126 on one side of the first housing 1120.

[0197] Furthermore, the first stop 1121b and the second stop 1122b can fix the position of the first member 1126 and the position of the tilting guide portion between the first member 1126 and the mover, thereby eliminating factors that cause errors, such as vibration. Therefore, the first camera actuator according to the embodiment can accurately perform X-axis tilting and Y-axis tilting.

[0198] Furthermore, the separation distance L2 between the first stop 1121b and the second stop 1122b in the second direction (Y-axis direction) can be less than the maximum length L1 of the first member 1126 in the second direction (Y-axis direction). Therefore, the first member 1126 can be laterally assembled or inserted into the first housing 1120 and combined with the first housing 1120.

[0199] Additionally, the first member 1126 includes a second protrusion hole PH2 in which the second protrusion of the tilting guide portion is disposed. The second protrusion hole PH2 may be located on the inner surface 1126s1 of the first member 1126. Therefore, the first member 1126 allows the protrusion of the tilting guide portion (e.g., the second protrusion) to be positioned adjacent to the prism in the fourth mounting groove, and allows the protrusion—which serves as a reference axis for tilting—to be positioned close to the center of gravity of the mover 1130. Therefore, when the retainer is tilted, the torque required to move the mover 1130 for tilting can be minimized. Therefore, because the current consumption used in the drive coil is minimized, the power consumption of the camera actuator can be reduced.

[0200] Additionally, the first component 1126 may have through holes 1126a and 1126b. There may be multiple through holes, and they may consist of a first through hole 1126a and a second through hole 1126b.

[0201] The first and second extensions of the second component, which will be described later, can pass through the first through hole 1126a and the second through hole 1126b, respectively. Thus, the second component can be joined to the first component. In other words, the first housing and the mover can be joined together.

[0202] The second protruding hole PH2 can be positioned between the first through hole 1126a and the second through hole 1126b. This configuration improves the bonding force between the tilting guide portion 1141 and the first member 1126, thus preventing a decrease in tilting accuracy caused by movement of the tilting guide portion 1141 within the first housing.

[0203] Furthermore, the second groove gr2 can be positioned on the outer surface 1126s2 of the first member 1126. The first magnetic body can be disposed in the second groove gr2. Additionally, the outer surface 1126s2 of the first member 1126 can face the inner surface of the second member or the base of the member. Furthermore, the second magnetic body disposed on the second member and the first magnetic body of the first member 1126 can face each other and generate the aforementioned repulsive force. Therefore, because the first member 1126 presses the inclined guide portion or the retainer inward by the repulsive force, the mover can be spaced a predetermined distance from the side of the third housing within the first housing even when no current is injected into the coil. Furthermore, the inclined guide portion disposed between the retainer and the housing (e.g., the first member) can be pressed by the retainer and the housing. In other words, the bonding force between the mover, the housing, and the inclined guide portion can be maintained.

[0204] Furthermore, when the first component 1126 is integrally formed with the first housing 1120, the bonding force between the first component 1126 and the first housing 1120 is increased, thereby improving the reliability of the camera actuator. Additionally, when the first component 1126 and the first housing 1120 are separated, the ease of assembly and manufacturing is improved.

[0205] In an embodiment, the first component 1126 may have a first through hole 1126a and a second through hole 1126b as described above. Furthermore, the first through hole 1126a and the second through hole 1126b may be arranged side-by-side in a second direction (Y-axis direction) and may overlap each other.

[0206] The first component 1126 may include an upper component UA located above the first through hole 1126a and the second through hole 1126b, and a lower component BA located below the first through hole 1126a and the second through hole 1126b. Therefore, the first through hole 1126a and the second through hole 1126b can be positioned in the middle of the first component. That is, the first component 1126 may include a connecting component MA located on the side of the first through hole 1126a and the second through hole 1126b. Specifically, the upper component UA and the lower component BA can be connected to each other via the connecting component MA. Furthermore, the lower surface BA may be multiple to form the first and second through holes, and may be spaced apart from each other in a second direction (Y-axis direction).

[0207] Because the first member 1126 has an upper member UA, its stiffness can be improved. For example, the stiffness of the first member 1126 can be increased compared to the case where the upper member UA is not present. For example, in this embodiment, the unit of stiffness can be N / μm. Therefore, the reliability of the first camera actuator according to the embodiment can be improved.

[0208] Additionally, the first engagement groove 1126k may be located on the outer surface 1126s2 of the first member 1126. The first engagement groove 1126k may be located at the edge of the outer surface 1126s2 of the first member 1126. In particular, the first engagement groove 1126k may be located at the end (e.g., the left and right sides) of the outer surface 1126s2 of the first member 1126 and may be positioned adjacent to the first housing side 1121.

[0209] The first engagement groove 1126k can be positioned to correspond to the second engagement grooves 1121m and 1122m of the first housing side 1121 and the second housing side 1122. In an embodiment, the first engagement groove 1126k can be positioned to face the second engagement grooves 1121m and 1122m of the first housing side 1121 and the second housing side 1122. The second engagement grooves 1121m and 1122m can be positioned on a coplanar side surface adjacent to the outer surface 1126S2 of the first member 1126.

[0210] In the implementation, there may be multiple first mating grooves 1126k and second mating grooves 1121m and 1122m, and the multiple first mating grooves 1126k and second mating grooves 1121m and 1122m may be positioned sequentially in a first direction or a second direction.

[0211] Additionally, the bonding member can be coated in the first bonding groove 1126k and the second bonding grooves 1121m and 1122m. That is, the bonding member can be coated between the first housing side (or the second housing side) and the first member 1126 to improve the bonding force between the housing 1120 and the first member 1126. The bonding member can be made of materials including, but not limited to, epoxy resin.

[0212] Additionally, the first member 1126 may also include a first protrusion and a second protrusion. The first protrusion may contact a side portion of the first housing, and the second protrusion may contact a side portion of the second housing. The first protrusion may extend from one end of the outer surface 1126S2 of the first member along a third direction (Z-axis). The second protrusion may extend from the other end of the outer surface 1126S2 of the first member along a third direction (Z-axis). That is, the first and second protrusions may extend toward the retainer.

[0213] The position of the first protrusion can be maintained by the first stop 1121b, and the position of the second protrusion can be maintained by the second stop 1122b. Therefore, the reliability of the camera actuator according to the embodiment can be improved.

[0214] Figure 7 This is a perspective view of the optical components of the first camera actuator according to the embodiment.

[0215] Optical component 1132 can be mounted on the holder. Optical component 1132 can be, but is not limited to, a right-angle prism as a reflector.

[0216] In one embodiment, the optical component 1132 may have a protrusion (not shown) on a portion of its outer surface. The optical component 1132 can be easily coupled to the retainer via the protrusion (not shown). Alternatively, the retainer may have a groove or protrusion for coupling with the optical component 1132.

[0217] Furthermore, the bottom surface 1132b of the optical component 1132 can be mounted on the mounting surface of the retainer. Therefore, the bottom surface 1132b of the optical component 1132 can correspond to the mounting surface of the retainer. In one embodiment, the bottom surface 1132b can be formed from an inclined surface to correspond to the mounting surface of the retainer. Therefore, when the retainer moves, the prism can move, and separation of the optical component 1132 from the retainer due to movement can be prevented.

[0218] Alternatively, the bottom surface 1132b of the optical component 1132 may have a groove formed on the bottom surface 1132b and coated with a bonding member, so that the optical component 1132 can be bonded to the retainer. Alternatively, the bonding member may be coated in a groove or protrusion of the retainer, so that the retainer can be bonded to the optical component 1132.

[0219] Additionally, as described above, the optical component 1132 may have a structure capable of reflecting light reflected from the outside (e.g., an object) into the camera module. As in the embodiment, the optical component 1132 may be formed from a single mirror. Furthermore, the optical component 1132 can alter the path of the reflected light, thereby improving the spatial constraints of the first and second camera actuators. Therefore, the camera module can provide a high range of magnification by extending the optical path while minimizing thickness. Additionally, a camera module including the camera actuator according to the embodiment can provide a high range of magnification by extending the optical path while minimizing thickness.

[0220] Figure 8a This is a perspective view of the holder of the first camera actuator according to the embodiment. Figure 8b This is a bottom view of the holder of the first camera actuator according to the embodiment. Figure 8c This is a front view of the holder of the first camera actuator according to an embodiment. Figure 8d This is a rear view of the second component of the first camera actuator according to an embodiment, and Figure 8e This is a bottom view of the second component of the first camera actuator according to an embodiment.

[0221] Reference Figures 8a to 8eThe retainer 1131 may include a mounting surface 1131k, on which the optical component 1132 is disposed. The mounting surface 1131k may be an inclined surface. Additionally, the retainer 1131 may include claws located on the mounting surface 1131k. Furthermore, the claws of the retainer 1131 may engage with a protrusion (not shown) of the optical component 1132.

[0222] The retainer 1131 may have multiple outer surfaces. For example, the retainer 1131 may have a first retainer outer surface 1131S1, a second retainer outer surface 1131S2, a third retainer outer surface 1131S3, and a fourth retainer outer surface 1131S4.

[0223] The outer surface 1131S1 of the first retainer can be positioned to face the outer surface 1131S2 of the second retainer. That is, the outer surface 1131S1 of the first retainer and the outer surface 1131S2 of the second retainer can be arranged sequentially relative to the first direction (X-axis direction).

[0224] The outer surface 1131S1 of the first retainer can be positioned to correspond to the side of the first housing. That is, the outer surface 1131S1 of the first retainer can face the side of the first housing. Additionally, the outer surface 1131S2 of the second retainer can be positioned to correspond to the side of the second housing. That is, the outer surface 1131S2 of the second retainer can be positioned to face the side of the second housing.

[0225] Additionally, the outer surface 1131S1 of the first retainer may have a first mounting recess 1131S1a. Furthermore, the outer surface 1131S2 of the second retainer may have a second mounting recess 1131S2a. The first mounting recess 1131S1a and the second mounting recess 1131S2a may be arranged sequentially relative to a first direction (X-axis direction).

[0226] Furthermore, the first mounting recess 1131S1a and the second mounting recess 1131S2a can be configured to overlap each other in the second direction (Y-axis direction). Additionally, the first magnet 1151a can be disposed in the first mounting recess 1131S1a, and the second magnet 1151b can be disposed in the second mounting recess 1131S2a. The first magnet 1151a and the second magnet 1151b can also be arranged sequentially relative to the first direction (X-axis direction). In this specification, the first to third magnets can be coupled to the housing via a yoke or a connecting member.

[0227] As described above, due to the positions of the first and second mounting recesses relative to the first and second magnets, the electromagnetic force induced by each magnet is provided to the first retainer outer surface S1231S1 and the second retainer outer surface S1131S2, which are on the same axis. For example, the regions applied to the first retainer outer surface S1231S1 (e.g., the portion with the strongest electromagnetic force) and the regions applied to the second retainer outer surface S1231S1 (e.g., the portion with the strongest electromagnetic force) can be located on an axis parallel to the second direction (Y-axis direction). Therefore, X-axis tilting can be performed accurately.

[0228] The first magnet 1151a can be disposed in the first mounting recess 1131S1a, and the second magnet 1151b can be disposed in the second mounting recess 1131S2a.

[0229] The third retainer outer surface 1131S3 may be an outer surface that contacts the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2, and extends from the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2 along a second direction (Y-axis direction). Furthermore, the third retainer outer surface 1131S3 may be positioned between the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2. The third retainer outer surface 1131S3 may be the lower surface of the retainer 1131. That is, the third retainer outer surface 1131S3 may be positioned facing the side of the third housing.

[0230] Additionally, the outer surface 1131S3 of the third retainer may have a third mounting recess 1131S3a. The third magnet 1151c may be disposed in the third mounting recess 1131S3a. The outer surface 1131S3 of the third retainer may be positioned to face the side portion 1123 of the third housing.

[0231] Furthermore, the third housing hole 1123a can at least partially overlap with the third mounting recess 1131S3a in the first direction (X-axis direction). Therefore, the third magnet 1151c in the third mounting recess 1131S3a and the third coil 1152c in the third housing hole 1123a can face each other. In addition, the third magnet 1151c and the third coil 1152c generate electromagnetic force, enabling the second camera actuator to perform Y-axis tilting.

[0232] In addition, when the X-axis tilt is achieved by multiple magnets (first magnet 1151a and second magnet 1151b), the Y-axis tilt can be achieved by only the third magnet 1151c.

[0233] In one embodiment, the third mounting recess 1131S3a may have a larger area than the first mounting recess 1131S1a or the second mounting recess 1131S2a. With this configuration, Y-axis tilting can be performed using current control similar to that used for X-axis tilting.

[0234] The fourth retainer outer surface 1131S4 may be an outer surface that contacts the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2, and extends from the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2 along a first direction (X-axis direction). Furthermore, the fourth retainer outer surface 1131S4 may be positioned between the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2. That is, the fourth retainer outer surface 1131S4 may face the first member.

[0235] The outer surface 1131S4 of the fourth retainer may have a fourth mounting recess 1131S4a. The tilting guide portion 1141 may be positioned within the fourth mounting recess 1131S4a. Additionally, the second member 1131a and the first member 1126 may be positioned within the fourth mounting recess 1131S4a. Furthermore, the fourth mounting recess 1131S4a may have multiple regions, such as a first region AR1, a second region AR2, and a third region AR3.

[0236] The second member 1131a can be positioned within the first region AR1. That is, the first region AR1 can overlap with the second member 1131a in the first direction (X-axis direction). In particular, the first region AR1 can be the region where the member base of the second member 1131a is located. In this case, the first region AR1 can be located on the outer surface 1131S4 of the fourth retainer. That is, the first region AR1 can correspond to the region located above the fourth mounting recess 1131S4a. In this case, the first region AR1 may not be the region within the fourth mounting recess 1131S4a.

[0237] The first component 1126 can be located in the second region AR2. That is, the second region AR2 can overlap with the first component 1126 in the first direction (X-axis direction).

[0238] Additionally, similar to the first region, the second region AR2 can be positioned on the outer surface 1131S4 of the fourth retainer. That is, the second region AR2 can correspond to the region located above the fourth mounting recess 1131S4a.

[0239] The tilting guide portion can be located in the third region AR3. In particular, the base of the tilting guide portion can be located in the third region AR3. That is, the third region AR3 can overlap with the tilting guide portion (e.g., the base) in the first direction (X-axis direction).

[0240] Additionally, the second region AR2 can be located between the first region AR1 and the third region AR3.

[0241] Additionally, a second component may be disposed in the first region AR1, and the second component 1131a may have a first groove gr1. In an embodiment, the second component 1131a may have a first groove gr1 formed on the inner surface 1131aas. Furthermore, a second magnetic material may be disposed in the first groove gr1 as described above.

[0242] As described above, the first component can be disposed in the second region AR2. The first groove gr1 can be positioned to face the second groove gr2. For example, the first groove gr1 can at least partially overlap with the second groove gr2 in the third direction (Z-axis direction).

[0243] Furthermore, the repulsive force generated by the second magnetic body can be transmitted to the fourth mounting recess 1131S4a of the retainer 1131 through the second member. Therefore, the retainer can apply a force to the inclined guide portion in the same direction as the repulsive force generated by the second magnetic body.

[0244] The first component may have a second groove gr2 facing the first groove gr1 formed on the outer surface. Additionally, the first component may have a second protrusion hole formed on the inner surface as described above. Furthermore, the second protrusion may be disposed within the second protrusion hole.

[0245] Furthermore, in the second magnetic body, the repulsive force generated by the first and second magnetic bodies can be applied to the first member. Therefore, the first and second members can compress the inclined guide portion disposed between the first member and the retainer 1131 through the repulsive force.

[0246] The tilting guide section 1141 can be set in the third region AR3.

[0247] Furthermore, the first protrusion hole PH1 can be located in the fourth mounting recess 1131S4a. Additionally, the first protrusion of the inclined guide portion 1141 can be accommodated in the first protrusion hole PH1. Therefore, the first protrusion PR1 can contact the first protrusion hole. The maximum diameter of the first protrusion hole PH1 can correspond to the maximum diameter of the first protrusion PR1. This can also be applied to the second protrusion hole and the second protrusion PR2. That is, the maximum diameter of the second protrusion hole can correspond to the maximum diameter of the second protrusion PR2. Therefore, the second protrusion can contact the second protrusion hole. With this configuration, a first axis tilt based on the first protrusion and a second axis tilt based on the second protrusion can be easily achieved, and the tilt radius can be improved.

[0248] Furthermore, in embodiments, the number of first protruding holes PH1 can be multiple. For example, one of the first protruding hole PH1 and the second protruding hole PH2 may include a first-first protruding hole PH1a and a first-second protruding hole PH1b. As will be described below, the first protruding hole PH1 includes a first-first protruding hole PH1a and a first-second protruding hole PH1b. Additionally, the following description can also be applied to the second protruding hole PH2. For example, the second protruding hole PH2 may include a second-first protruding hole and a second-second protruding hole, and the descriptions regarding the first-first protruding hole and the first-second protruding hole can be applied to the second-first protruding hole and the second-second protruding hole, respectively.

[0249] The first-first protruding hole PH1a and the first-second protruding hole PH1b can be arranged side by side in the first direction (x-axis direction). The first-first protruding hole PH1a and the first-second protruding hole PH1b can have the same maximum width.

[0250] The multiple first protruding holes PH1 can have different numbers of inclined surfaces. For example, the first protruding hole PH1 can have a bottom surface and an inclined surface. In this case, the multiple protruding holes can have different numbers of inclined surfaces. In addition, the protruding holes can also have bottom surfaces with different areas.

[0251] For example, the first-first protrusion hole PH1a may have a first hole bottom surface LS1 and a first inclined surface CS1. The first-second protrusion hole PH1b may have a second hole bottom surface LS2 and a second inclined surface CS2.

[0252] In this case, the bottom surface of the first hole LS1 and the bottom surface of the second hole LS2 can have different areas. The area of ​​the bottom surface of the first hole LS1 can be smaller than the area of ​​the bottom surface of the second hole LS2.

[0253] Furthermore, the number of first inclined surfaces CS1 that contact the bottom surface LS1 of the first hole can be different from the number of second inclined surfaces CS2. For example, the number of first inclined surfaces CS1 can be greater than the number of second inclined surfaces CS2.

[0254] With this configuration, the assembly tolerance of the first protrusion disposed in the first protrusion hole PH1 can be easily compensated. For example, because the number of first inclined surfaces CS1 is greater than the number of second inclined surfaces CS2, the first protrusion contacts more inclined surfaces, so that the position of the first protrusion can be more accurately maintained in the first-first protrusion hole PH1a.

[0255] Conversely, in the first-second protrusion hole PH1b, the number of inclined surfaces in contact with the first protrusion is less than the number of the first-first protrusion hole PH1b, making it easy to adjust the position of the first protrusion.

[0256] In this embodiment, the second inclined surfaces CS2 can be spaced apart from each other in the second direction (Y-axis direction). Furthermore, the bottom surface LS2 of the second hole extends along the first direction (X-axis direction), allowing the first protrusion to move easily along the first direction (X-axis direction) while in contact with the second inclined surfaces CS2. That is, the position of the first protrusion can be easily adjusted within the first-second protrusion hole PH1b. Additionally, the ease of assembly due to tolerances can be improved.

[0257] Furthermore, in this embodiment, the first region AR1, the second region AR2, and the third region AR3 may have different heights in the first direction (X-axis direction). In this embodiment, the first region AR1 may have a greater height in the first direction (X-axis direction) than the second region AR2 and the third region AR3. Therefore, a stepped portion may be positioned between the first region AR1 and the second region AR2.

[0258] Furthermore, the second member 1131a may have a first groove gr1. In other words, the first groove gr1 may be located on the inner surface of the member base 1131aa. Additionally, the second magnetic body described above may be disposed in the first groove gr1. Furthermore, depending on the number of second magnetic bodies, there may be multiple first grooves gr1. That is, the number of first grooves gr1 may correspond to the number of second magnetic bodies.

[0259] In addition, the second component 1131a may include a component base 1131aa, a first extension 1131ab, and a second extension 1131ac.

[0260] The component base 1131aa can be positioned at the outermost part of the first camera actuator. The component base 1131aa can be positioned outside the first component. That is, the first component can be positioned between the component base 1131aa and the tilting guide portion.

[0261] The first extension 1131ab can extend from the edge of the component base 1131aa along a third direction (Z-axis direction). That is, the first extension 1131ab can extend from the component base 1131aa toward the retainer 1131. The same applies to the second extension 1131ac. Additionally, the second extension 1131ac can extend from the edge of the component base 1131aa along a third direction (Z-axis direction). In this embodiment, the first extension 1131ab and the second extension 1131ac can be positioned at the edge of the component base 1131aa along a second direction (Y-axis direction). Furthermore, the first extension 1131ab and the second extension 1131ac can be disposed between the upper component and the lower component.

[0262] Therefore, the second member 1131a can have a groove formed by the first extension 1131ab and the second extension 1131ac. That is, the groove can be located between the first extension 1131ab and the second extension 1131ac. Therefore, the first extension 1131ab and the second extension 1131ac can be connected to each other only through the member base 1131aa. With this configuration, the second member 1131a can continuously receive repulsive forces through the second magnetic body disposed at the center of the member base 1131aa, particularly disposed in the first groove gr1.

[0263] In addition, the second member 1131a is coupled to the retainer and moves during X-axis tilt and Y-axis tilt, so the stiffness of the second member 1131a can be greater than that of the first member.

[0264] Furthermore, as described above, the first member according to the embodiment has an upper member and a lower member, which increases stiffness. This configuration reduces the stiffness difference between the second member and the first member. Therefore, when the second member 1131a and the retainer 1131 coupled with the second member 1131a tilt together along the X-axis or Y-axis, the second member 1131a can be within a small adjacent distance of the first member and contact the first member. Thus, the first member has increased stiffness as described above and can easily perform operation as a stop. That is, the reliability of the camera actuator can be improved.

[0265] Furthermore, reducing the stiffness difference between the first and second components minimizes damage caused by contact during tilting. In other words, it improves the reliability of the camera actuator.

[0266] Additionally, the first extension 1131ab can be spaced apart from the second extension 1131ac in the second direction (Y-axis direction) to form a separation space. The first member and the inclined guide portion can be placed in this separation space. Furthermore, the second magnetic body and the first magnetic body can be located in this separation space.

[0267] Furthermore, the first extension 1131ab and the second extension 1131ac can have the same length in the third direction (Z-axis direction). Therefore, the bonding force and weight are balanced, allowing the tilting of the retainer to be performed accurately.

[0268] Furthermore, the first extension 1131ab and the second extension 1131ac can be coupled to the retainer. In this specification, a coupling member can be used instead of the aforementioned protrusion and groove structures for coupling. In an embodiment, the first extension 1131ab and the second extension 1131ac may have a third coupling groove 1131k formed along a third direction (Z-axis direction). Additionally, in the fourth mounting recess 1131S4a, a coupling protrusion 1131m can be positioned in the region overlapping the first extension 1131ab and the second extension 1131ac in the third direction (Z-axis direction). The coupling protrusion 1131m can be positioned to correspond to the third coupling groove 1131k.

[0269] For example, a bonding component, such as epoxy resin, can be coated in the third bonding groove 1131k. Additionally, the bonding protrusion 1131m can be inserted into the third bonding groove 1131k of the first extension 1131ab and the second extension 1131ac. With this configuration, the second component 1131a and the retainer 1131 can be bonded to each other. Furthermore, the repulsive force applied to the second component 1131a can be transmitted to the retainer 1130 through this bond.

[0270] However, as mentioned above, the positions of the protrusion structure and the groove structure can be interchanged.

[0271] Figure 9a This is a perspective view of the tilting guide portion of the first camera actuator according to the embodiment. Figure 9b In the context of Figure 9a Three-dimensional images from different directions, and Figure 9c It is along Figure 9a The cross-sectional view taken by line FF' in the diagram.

[0272] The tilting guide portion 1141 according to the embodiment may include a base BS, a first protrusion PR1 protruding from a first surface 1141a of the base BS, and a second protrusion PR2 protruding from a second surface 1141b of the base BS. Furthermore, depending on the structure, the first and second protrusions may be formed on opposite surfaces, but these will be described below with reference to the accompanying drawings. Additionally, the first and second protrusions PR1 and PR2 may be integrally formed with the base BS, and as shown in the drawings, the first and second protrusions PR1 and PR2 may have a spherical shape similar to a ball.

[0273] The base BS may have a first surface 1141a and a second surface 1141b opposite to the first surface 1141a. That is, the first surface 1141a and the second surface 1141b may be spaced apart from each other in a third direction (Z-axis direction) and may be outer surfaces facing each other in the inclined guide portion 1141.

[0274] The tilting guide portion 1141 may include a first protrusion PR1 extending in one direction on the first surface 1141a. According to an embodiment, the first protrusion PR1 may protrude from the first surface 1141a toward the retainer. There may be multiple first protrusions PR1 and they may include first-first-protrusion PR1a and first-second-protrusion PR1b.

[0275] The first protrusion PR1a and the first protrusion PR1b can be positioned side by side in the first direction (X-axis direction). In other words, the first protrusion PR1a and the first protrusion PR1b can overlap in the first direction (X-axis direction). Furthermore, in an embodiment, the first protrusion PR1a and the first protrusion PR1b can be equally divided by an imaginary line extending along the first direction (X-axis direction).

[0276] Furthermore, the first-first protrusion PR1a and the first-second protrusion PR1b may have curved portions and may have, for example, a hemispherical shape. Additionally, the first-first protrusion PR1a and the first-second protrusion PR1b may contact the first groove of the housing at the point furthest from the first surface 1141a of the base BS.

[0277] Additionally, an alignment hole 1141aa may be positioned on the first surface 1141a. The alignment hole 1141aa may be provided on one side of the first surface 1141a to provide the assembly position or assembly direction of the tilt guide portion 1141 during the assembly process.

[0278] Additionally, the tilting guide portion 1141 may include a second protrusion PR2 extending in one direction on the second surface 1141a. According to an embodiment, the second protrusion PR2 may protrude from the second surface 1141b toward the housing. Furthermore, in an embodiment, there may be multiple second protrusions PR2, including a second-first protrusion PR2a and a second-second protrusion PR2b.

[0279] The second-first protrusion PR2a and the second-second protrusion PR2b can be positioned side-by-side in the second direction (Y-axis direction). That is, the second-first protrusion PR2a and the second-second protrusion PR2b can overlap in the second direction (Y-axis direction). Furthermore, in an embodiment, the second-first protrusion PR2a and the second-second protrusion PR2b can be equally bisected by an imaginary line extending along the second direction (Y-axis direction).

[0280] The second-first protrusion PR2a and the second-second protrusion PR2b may have curved portions and may have, for example, a hemispherical shape. In addition, the second-first protrusion PR2a and the second-second protrusion PR2b may contact the second member 1131a at points spaced apart from the second surface 1141b of the base BS.

[0281] The first-first protrusion PR1a and the first-second protrusion PR1b can be positioned along a second direction in the region between the second-first protrusion PR2a and the second-second protrusion PR2b. According to an embodiment, the first-first protrusion PR1a and the first-second protrusion PR1b can be positioned along a second direction at the center of the separation space between the second-first protrusion PR2a and the second-second protrusion PR2b. With this configuration, the actuator according to the embodiment can have an X-axis tilt angle within the same range relative to the X-axis. In other words, based on the first-first protrusion PR1a and the first-second protrusion PR1b, the tilt guide portion 1141 can provide the same X-axis tiltable range (e.g., positive / negative range) of the retainer relative to the X-axis.

[0282] Additionally, the second-first protrusion PR2a and the second-second protrusion PR2b can be positioned along a first direction in the region between the first-first protrusion PR1a and the first-second protrusion PR1b. According to an embodiment, the second-first protrusion PR2a and the second-second protrusion PR2b can be positioned along a first direction at the center of the separation space between the first-first protrusion PR1a and the first-second protrusion PR1b. With this configuration, the actuator according to the embodiment can have a Y-axis tilt angle within the same range relative to the Y-axis. In other words, based on the second-first protrusion PR2a and the second-second protrusion PR2b, the tilt guide portion 1141 and the retainer can provide the same Y-axis tiltable range (e.g., positive / negative range) relative to the Y-axis.

[0283] Specifically, the first surface 1141a may have a first outer line M1, a second outer line M2, a third outer line M3, and a fourth outer line M4. The first outer line M1 and the second outer line M2 may face each other, and the third outer line M3 and the fourth outer line M4 may face each other. Furthermore, the third outer line M3 and the fourth outer line M4 may be positioned between the first outer line M1 and the second outer line M2. Additionally, the first outer line M1 and the second outer line M2 may be perpendicular to the first direction (X-axis direction), and the third outer line M3 and the fourth outer line M4 may be parallel to the first direction (X-axis direction).

[0284] In this configuration, the first protrusion PR1 can be positioned on the first imaginary line VL1. Here, the first imaginary line VL1 is the line that bisects the first outer line M1 and the second outer line M2. Alternatively, the first imaginary line VL1 and the third imaginary line VL1' are the lines that bisect the base BS in the second direction (Y-axis direction). Therefore, the tilt guide portion 1141 can easily perform X-axis tilting via the first protrusion PR1. Furthermore, because the tilt guide portion 1141 performs X-axis tilting based on the first imaginary line VL1, rotational force can be applied uniformly to the tilt guide portion 1141. Therefore, X-axis tilting can be performed accurately, and the reliability of the device can be improved.

[0285] Furthermore, the first-first protrusion PR1a and the first-second protrusion PR1b can be symmetrically arranged with respect to the first imaginary line VL1 and the second imaginary line VL2. Alternatively, the first-first protrusion PR1a and the first-second protrusion PR1b can be symmetrically positioned with respect to the first center point C1. With this configuration, when tilted along the X-axis, the supporting force generated by the first protrusion PR1 can be applied equally to the upper and lower portions based on the second imaginary line VL2. Therefore, the reliability of the tilting guide portion can be improved. Here, the second imaginary line VL2 is the line that bisects the third outer line M3 and the fourth outer line M4. Alternatively, the second imaginary line LV2 and the fourth imaginary line LV2' are the lines that bisect the base BS in the first direction (X-axis direction).

[0286] Alternatively, the first center point C1 can be the intersection of the first imaginary line VL1 and the second imaginary line VL2. Alternatively, depending on the shape of the tilting guide portion 1141, the first center point C1 can be a point corresponding to the center of gravity.

[0287] Additionally, the second surface 1141b may have a fifth outer ray M1', a sixth outer ray M2', a seventh outer ray M3', and an eighth outer ray M4'. The fifth outer ray M1' and the sixth outer ray M2' may face each other, and the seventh outer ray M3' and the eighth outer ray M4' may also face each other. Furthermore, the seventh outer ray M3' and the eighth outer ray M4' may be positioned between the fifth outer ray M1' and the sixth outer ray M2'. The fifth outer ray M1' and the sixth outer ray M2' may be perpendicular to the first direction (X-axis direction), and the seventh outer ray M3' and the eighth outer ray M4' may be parallel to the first direction (X-axis direction).

[0288] Furthermore, since the tilting guide section 1141 performs Y-axis tilting based on the fourth imaginary line VL2', the rotational force can be applied evenly to the tilting guide section 1141. Therefore, Y-axis tilting can be performed precisely and the reliability of the device can be improved.

[0289] Furthermore, the second-first protrusion PR2a and the second-second protrusion PR2b can be symmetrically arranged with respect to the third imaginary line VL1' and the fourth imaginary line VL2'. Alternatively, the second-first protrusion PR2a and the second-second protrusion PR2b can be symmetrically positioned with respect to the second center point C1'. With this configuration, when the Y-axis is tilted, the supporting force generated by the second protrusion PR2 can be applied equally to the upper and lower sides of the tilting guide portion based on the fourth imaginary line VL2'. Therefore, the reliability of the tilting guide portion can be improved. Here, the third imaginary line VL1' is the line that equally bisects the fifth outer line M1' and the sixth outer line M2'. In addition, the second center point C1' can be the intersection of the third imaginary line VL1' and the fourth imaginary line VL2'. Alternatively, depending on the shape of the tilting guide portion 1141, the second center point C1' can be a point corresponding to the center of gravity.

[0290] Furthermore, the gap DR2 between the first protrusion PR1a and the first protrusion PR1b in the first direction (X-axis direction) can be greater than the length of the second protrusion PR2 in the first direction (X-axis direction). Therefore, when X-axis tilting is performed based on the first protrusion PR1a and the first protrusion PR1b, the resistance generated by the second protrusion PR2 can be minimized.

[0291] Accordingly, the gap ML2 between the second-first protrusion PR2a and the second-second protrusion PR2b in the second direction (Y-axis direction) can be greater than the length of the first protrusion PR1 in the second direction (Y-axis direction). Therefore, when Y-axis tilting is performed based on the second-first protrusion PR2a and the second-second protrusion PR2b, the resistance generated by the first protrusion PR1 can be minimized.

[0292] Figure 10 This is a view showing the first drive unit of the first camera actuator according to an embodiment.

[0293] Reference Figure 10 The first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor unit 1153, a first substrate unit 1154, and a magnetic yoke unit 1155.

[0294] Additionally, as described above, the driving magnet 1151 may include a first magnet 1151a, a second magnet 1151b, and a third magnet 1151c that provide driving force via electromagnetic force. Each of the first magnet 1151a, the second magnet 1151b, and the third magnet 1151c may be positioned on the outer surface of the retainer 1131.

[0295] Additionally, the drive coil 1152 may include multiple coils. In one embodiment, the drive coil 1152 may include a first coil 1152a, a second coil 1152b, and a third coil 1152c.

[0296] The first coil 1152a can be positioned opposite the first magnet 1151a. Therefore, the first coil 1152a can be positioned in the first housing hole 1121a of the first housing side portion 1121 as described above. Additionally, the second coil 1152b can be positioned opposite the second magnet 1151b. Therefore, the second coil 1152b can be positioned in the second housing hole 1122a of the second housing side portion 1122 as described above.

[0297] According to the embodiment, the second camera actuator can control the movement 1130 to rotate on the first axis (X-axis direction) or the second axis (Y-axis direction) by the electromagnetic force between the drive magnet 1151 and the drive coil 1152, thereby minimizing the occurrence of eccentricity or tilt during OIS implementation and providing optimal optical characteristics.

[0298] Additionally, according to the embodiment, OIS can be achieved by tilting guide portion 1141 of rotating unit 1140 disposed between first housing 1120 and mover 1130, thereby eliminating actuator size limitations and providing ultra-thin and ultra-small camera actuators and camera modules including the camera actuator.

[0299] The first substrate unit 1154 may include a first substrate side 1154a, a second substrate side 1154b, and a third substrate side 1154c.

[0300] The first substrate side portion 1154a and the second substrate side portion 1154b may be configured to face each other. In addition, the third substrate side portion 1154c may be positioned between the first substrate side portion 1154a and the second substrate side portion 1154b.

[0301] Additionally, the first substrate side portion 1154a can be positioned between the first housing side portion and the shielding cover, and the second substrate side portion 1154b can be positioned between the second housing side portion and the shielding cover. Furthermore, the third substrate side portion 1154c can be positioned between the third housing side portion and the shielding cover, and can be the lower surface of the first substrate unit 1154.

[0302] The first substrate side portion 1154a can be combined with and electrically connected to the first coil 1152a. Additionally, the first substrate side portion 1154a can be combined with and electrically connected to the first Hall sensor 1153a.

[0303] The second substrate side portion 1154b can be combined with and electrically connected to the second coil 1152b. Additionally, the second substrate side portion 1154b can be combined with and electrically connected to the first Hall sensor.

[0304] The third substrate side portion 1154c can be combined with and electrically connected to the third coil 1152c. In addition, the third substrate side portion 1154c can be combined with and electrically connected to the second Hall sensor 1153b.

[0305] The yoke unit 1155 may include a first yoke 1155a, a second yoke 1155b, and a third yoke 1155c. The first yoke 1155a may be positioned in a first mounting recess and engaged with a first magnet 1151a. The second yoke 1155b may be positioned in a second mounting recess and engaged with a second magnet 1151b. The third yoke 1155c may be positioned in a third mounting recess and engaged with a third magnet 1151c. The first yokes 1155a to the third yokes 1155c allow the first magnet 1151a to the third magnet 1151c to be easily positioned in the first to third mounting recesses and engaged with the housing.

[0306] Figure 11a This is a perspective view of the first camera actuator according to the embodiment. Figure 11b It is along Figure 11a The cross-sectional view of line PP' in the diagram, and Figure 11c It is along Figure 11a The cross-sectional view of the line QQ' in the image.

[0307] Reference Figures 11a to 11cThe first coil 1152a can be located on the side portion 1121 of the first housing, and the first magnet 1151a can be located on the outer surface 1131S1 of the first retainer of the retainer 1131. Therefore, the first coil 1152a and the first magnet 1151a can be positioned facing each other. The first magnet 1151a can at least partially overlap with the first coil 1152a in the second direction (Y-axis direction).

[0308] Additionally, the second coil 1152b can be located on the side portion 1122 of the second housing, and the second magnet 1151b can be located on the outer surface 1131S2 of the second retainer of the retainer 1131. Therefore, the second coil 1152b and the second magnet 1151b can be positioned facing each other. The second magnet 1151b can at least partially overlap with the second coil 1152b in the second direction (Y-axis direction).

[0309] In addition, the first coil 1152a and the second coil 1152b can overlap in the second direction (Y-axis direction), and the first magnet 1151a and the second magnet 1151b can overlap in the second direction (Y-axis direction).

[0310] With this configuration, the electromagnetic force applied to the outer surfaces of the retainers (the outer surfaces of the first and second retainers) can be located in the second direction (the Y-axis direction) parallel to the axis, so that the X-axis tilt can be performed accurately and precisely.

[0311] Furthermore, the second protrusions PR2a and PR2b of the tilting guide portion 1141 can contact the first member 1126 of the first housing 1120. The second protrusion PR2 can be disposed in a second protrusion hole PH2 formed on one side of the first member 1126. Additionally, when performing X-axis tilting, the second protrusions PR2a and PR2b can serve as a reference axis (or rotation axis) for this tilting movement. Therefore, the tilting guide portion 1141 and the mover 1130 can move along the second direction.

[0312] Additionally, as described above, the first Hall sensor 1153a can be externally positioned to be electrically connected and coupled to the first substrate unit 1154. However, this is not a limitation to this position.

[0313] Furthermore, the third coil 1152c can be located on the third housing side 1123, and the third magnet 1151c can be located on the third retainer outer surface 1131S3 of the retainer 1131. The third coil 1152c and the third magnet 1151c can at least partially overlap in the first direction (X-axis direction). Therefore, the strength of the electromagnetic force between the third coil 1152c and the third magnet 1151c can be easily controlled.

[0314] As described above, the tilting guide portion 1141 may be located on the fourth retainer outer surface 1131S4 of the retainer 1131. Alternatively, the tilting guide portion 1141 may be disposed in a fourth mounting recess 1131S4a on the fourth retainer outer surface. As described above, the fourth mounting recess 1131S4a may include a first region AR1, a second region AR2, and a third region AR3.

[0315] The second member 1131a may be disposed in the first region AR1, and the second member 1131a may have a first groove gr1 formed on the inner surface of the second member 1131a. Additionally, the second magnetic body 1142 is disposed in the first groove gr1 as described above, and the repulsive force RF2 generated from the second magnetic body 1142 can be transmitted through the second member 1131a to the fourth mounting recess 1131S4a (RF2') of the retainer 1131. Therefore, the retainer 1131 can apply a force to the inclined guide portion 1141 in the same direction as the repulsive force RF2 generated by the second magnetic body 1142.

[0316] The first member 1126 may be disposed in the second region AR2. The first member 1126 may have a second groove gr2 facing the first groove gr1. In addition, the first member 1126 may include a second protrusion hole PH2 disposed on the surface corresponding to the second groove gr2. In addition, the repulsive force RF1 generated by the first magnetic body 1143 may be applied to the first member 1126. Therefore, the first member 1126 and the second member 1131a may press the inclined guide portion 1141 disposed between the first member 1126 and the retainer 1131 by the generated repulsive forces RF1 and RF2'. Therefore, even after the retainer is tilted along the X-axis or Y-axis by the current applied to the first coil and the second coil, or the third coil 1152c, the connection between the retainer 1131, the first housing 1120 and the inclined guide portion 1141 can be maintained.

[0317] The tilting guide portion 1141 may be disposed in the third region AR3. As described above, the tilting guide portion 1141 may include a first protrusion PR1 and a second protrusion PR2. In this case, the first protrusion PR1 and the second protrusion PR2 may be disposed on the second surface 1141b and the first surface 1141a of the base BS, respectively. Thus, even in other embodiments described later, the first protrusion PR1 and the second protrusion PR2 may be positioned differently on opposite surfaces of the base BS.

[0318] The first protruding hole PH1 can be located in the fourth mounting recess 1131S4a. Additionally, the first protrusion PR1 of the tilting guide portion 1141 can be accommodated in the first protruding hole PH1. Therefore, the first protrusion PR1 can contact the first protruding hole PH1. The maximum diameter of the first protruding hole PH1 can correspond to the maximum diameter of the first protrusion PR1. This can also be applied to the second protruding hole PH2 and the second protrusion PR2. That is, the maximum diameter of the second protruding hole PH2 can correspond to the maximum diameter of the second protrusion PR2. Furthermore, the second protrusion PR2 can contact the second protruding hole PH2. With this configuration, a first axis tilt based on the first protrusion PR1 and a second axis tilt based on the second protrusion PR2 can be easily achieved, and the tilt radius can be improved.

[0319] Furthermore, the tilt guide portion 1141 can be arranged side-by-side with the second member 1131a and the first member 1126 in the third direction (Z-axis direction), such that the tilt guide portion 1141 can overlap with the optical member 1132 in the first direction (X-axis direction). Specifically, in the embodiment, the first protrusion PR1 can overlap with the optical member 1132 in the first direction (X-axis direction). In addition, at least a portion of the first protrusion PR1 can overlap with the third coil 1152c or the third magnet 1151c in the first direction (X-axis direction). That is, in the camera actuator according to the embodiment, each protrusion, which serves as the tilting central axis, can be positioned near the center of gravity of the mover 1130. Therefore, the tilt guide portion can be positioned near the center of gravity of the retainer. Therefore, the camera actuator according to the embodiment can be used to minimize the torque value for tilting the retainer and minimize the current consumption applied to the coil unit to tilt the retainer, thereby improving power consumption and increasing device reliability.

[0320] Furthermore, the second magnetic body 1142 and the first magnetic body 1143 may not overlap with the third coil 1152c or the optical component 1132 in the first direction (X-axis direction). In other words, in the embodiment, the second magnetic body 1142 and the first magnetic body 1143 may be spaced apart from the third coil 1152c or the optical component 1132 in the third direction (Z-axis direction). Therefore, the third coil 1152c can minimize the electromagnetic force transmitted from the second magnetic body 1142 and the first magnetic body 1143. Therefore, the camera actuator according to the embodiment can easily perform up-and-down drive (Y-axis tilt) and can minimize power consumption.

[0321] Furthermore, as described above, the second Hall sensor 1153b located inside the third coil 1152c can detect changes in magnetic flux, enabling position sensing between the third magnet 1151c and the second Hall sensor 1153b. In this case, the offset voltage of the second Hall sensor 1153b can be changed according to the influence of the magnetic field formed by the second magnetic body 1142 and the first magnetic body 1143.

[0322] In the first camera actuator according to the embodiment, the second component 1131a, the second magnetic body 1142, the first magnetic body 1143, the first component 1126, the tilt guide portion 1141, and the holder 1131 can be arranged sequentially in a third-order orientation. However, since the second magnetic body is located in the second component and the first magnetic body is located in the first component, the second component, the first component, the tilt guide portion, and the holder can be arranged sequentially.

[0323] In this embodiment, the separation distance between the second magnetic body 1142 and the first magnetic body 1143 from the holder 1131 (or optical component 1132) in a third direction can be greater than the separation distance between the tilting guide portions 1141. Therefore, the second Hall sensor 1153b located below the holder 1131 can also be spaced apart from the second magnetic body 1142 and the first magnetic body 1143 at a predetermined distance. Thus, the influence of the magnetic field formed by the second magnetic body 1142 and the first magnetic body 1143 is minimized in the second Hall sensor 1153b, preventing the Hall voltage from saturating due to concentration in the positive or negative direction. That is, this configuration allows the Hall electrodes to have a range capable of performing Hall calibration. Furthermore, although temperature is also affected by the electrodes of the Hall sensor and the resolving power of the camera lens changes according to temperature, in this embodiment, positive or negative concentration of the Hall voltage can be prevented, and the resolving power of the lens can be compensated, thereby easily preventing degradation of the resolving power.

[0324] In addition, circuit design for compensating for the offset relative to the output (i.e., Hall voltage) of the second Hall sensor 1153b can be easily carried out.

[0325] Additionally, according to the embodiment, a portion of the tilt guide portion 1141 relative to the fourth retainer outer surface of the retainer 1131 may be located outside the fourth retainer outer surface.

[0326] In addition to the first protrusion PR1 and the second protrusion PR2, the inclined guide portion 1141 can be positioned in the fourth mounting recess 1131S4a based on the base BS. In other words, the length of the base BS in the third direction (Z-axis direction) can be less than the length of the fourth mounting recess 1141S4a in the third direction (Z-axis direction). With this configuration, size reduction can be easily achieved.

[0327] Furthermore, the maximum length of the inclined guide portion 1141 in the third direction (Z-axis direction) can be greater than the length of the fourth mounting recess 1131S4a in the third direction (Z-axis direction). Therefore, as described above, the end of the second protrusion PR2 can be located between the outer surface of the fourth retainer and the first member 1126. That is, at least a portion of the second protrusion PR2 can be positioned in a direction opposite to the third direction (Z-axis direction) of the retainer 1131. In other words, the retainer 1131 can be spaced a predetermined distance from the end of the second protrusion PR2 (the portion in contact with the second protrusion hole) in the third direction (Z-axis direction).

[0328] Furthermore, according to the embodiment, the front surface 1131aes of the second member 1131a can be spaced apart from the front surface 1126es of the second member 1126. Specifically, according to the embodiment, the front surface 1131aes of the second member 1131a can be positioned from the front surface 1126es of the second member 1126 toward a third direction (Z-axis direction). Alternatively, according to the embodiment, the front surface 1131aes of the second member 1131a can be located inside the front surface 1126es of the second member 1126. For this purpose, the first member 1126 can have an inwardly extending and buckled structure. Additionally, a portion of the second member 1131a can be located in a groove formed by the extended and buckled structure of the first member 1126 described above.

[0329] With this configuration, because the second member 1131a is located inside the second member 1126, space efficiency can be improved and size can be reduced. Furthermore, even when driven by electromagnetic force (causing the mover 1130 to tilt or rotate), the second member 1131a does not protrude outside the first member 1126, thus preventing contact with surrounding components. Therefore, reliability can be improved.

[0330] Furthermore, a predetermined separation space may exist between the second magnetic body 1142 and the first magnetic body 1143. In other words, the second magnetic body 1142 and the first magnetic body 1143 may face each other with the same polarity.

[0331] Figure 12a This is a perspective view of the first camera actuator according to the embodiment. Figure 12b It is along Figure 12a The cross-sectional view of line SS' in the diagram, and Figure 12c Is Figure 12b An exemplary view of the motion of the first camera actuator is shown in the figure.

[0332] Reference Figures 12a to 12c Y-axis tilt can be performed by a first camera actuator according to the embodiment. That is, OIS can be achieved by rotation in the first direction (X-axis direction).

[0333] In one embodiment, the third magnet 1151c disposed below the retainer 1131 can generate an electromagnetic force with the third coil 1152c to cause the mover 1130 to tilt or rotate in the second direction (Y-axis direction).

[0334] Specifically, the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 can be transmitted to the second member 1131a and the first member 1126, and ultimately to the inclined guide portion 1141 disposed between the first member 1126 and the retainer 1131. Therefore, the inclined guide portion 1141 can be squeezed by the passive element 1130 and the first housing 1120 by the aforementioned repulsive force.

[0335] Furthermore, the second protrusion PR2 can be supported by the first member 1126. Simultaneously, in this embodiment, the tilting guide portion 1141 can rotate or tilt relative to the second protrusion PR2, which protrudes toward the first member 1126 as a reference axis (or axis of rotation), i.e., rotate or tilt in the second direction (Y-axis direction). In other words, the tilting guide portion 1141 can rotate or tilt in the first direction (X-axis direction) by using the second protrusion PR2, which protrudes toward the first member 1126 as a reference axis (or axis of rotation).

[0336] For example, the mover 1130 rotates by a first angle θ1 (X1→X1a) in the X-axis direction by the first electromagnetic forces F1A and F1B between the third magnet 1151c provided in the third mounting recess and the third coil unit 1152c provided on the side of the third substrate, thereby realizing the OIS implementation.

[0337] Conversely, the mover 1130 rotates by a first angle θ1 (X1→X1b) in the opposite direction to the X-axis by the first electromagnetic forces F1A and F1B between the third magnet 1151c provided in the third mounting recess and the third coil unit 1152c provided on the side of the third substrate, thereby realizing the OIS implementation.

[0338] The first angle θ1 can be, but is not limited to, ±1° to ±3°.

[0339] Furthermore, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 can be arranged side by side along a third direction (Z-axis direction). In other words, the center line TL1 connecting the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 can be parallel to the third direction (Z-axis direction).

[0340] Furthermore, the dividing line TL2 that bisects the second protrusion PR2 in the third direction (Z-axis direction) can be parallel to the center line TL1. In other words, the dividing line TL2 can be a line that bisects the second protrusion PR2 in the first direction (X-axis direction), and there can be multiple such lines.

[0341] In this implementation, the bisector TL2 can be spaced apart from the center line TL1 in the first direction (X-axis direction). The bisector TL2 can be located above the center line TL1. This configuration increases the separation distance between the third coil 1152c or the third magnet 1151c, allowing the holder to more accurately perform biaxial tilting. Furthermore, the position of the holder can remain unchanged when no current is applied to the coil.

[0342] Specifically, because the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are spaced apart from the bisector TL2 in the first direction (X-axis direction), the force (e.g., repulsive force) between the second magnetic body 1142 and the first magnetic body 1143 can act in the first direction (X-axis direction) at a certain distance from the bisector TL2 corresponding to the optical axis. This force generates momentum in the mover 1130. However, if the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are located on the bisector TL2, there is a problem that the position of the tilt guide portion and the second magnetic body 1142 cannot be maintained after tilting. That is, because the camera actuator according to the embodiment prevents the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 from being located on the bisector TL2, the position of the tilt guide portion and the second magnetic body 1142 can be maintained after tilting or rotation.

[0343] In another embodiment, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be spaced apart from each other in a first direction (X-axis direction).

[0344] Furthermore, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may not be located on the bisector TL2. For example, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be positioned above the bisector TL2.

[0345] Therefore, the increased separation distance from the third coil 1152c or the third magnet 1151c allows the retainer to more accurately perform biaxial tilting. Furthermore, the retainer's position can remain unchanged when no current is applied to the coil.

[0346] In addition, the second magnetic body 1142 and the first magnetic body 1143 may have different lengths in the first direction (X-axis direction).

[0347] In this embodiment, the area of ​​the second magnetic body 1142, which is coupled to the second member 1131a and tilted together with the mover 1130, can be larger than the area of ​​the first magnetic body 1143. For example, the length of the second magnetic body 1142 in the first direction (X-axis direction) can be greater than the length of the first magnetic body 1143 in the first direction (X-axis direction). Furthermore, the length of the second magnetic body 1142 in the second direction (Y-axis direction) can be greater than the length of the first magnetic body 1143 in the second direction (Y-axis direction). Additionally, the first magnetic body 1143 can be positioned within an imaginary straight line extending along a third direction from both ends of the second magnetic body 1142.

[0348] With this configuration, even if one magnetic body (e.g., the second magnetic body) tilts during tilting or rotation, forces other than vertical forces due to tilting can be easily prevented. That is, even if the second magnetic body tilts upward and downward together with the mover 1130, it will not receive forces (e.g., repulsive or attractive forces) opposite to the tilting from the first magnetic body 1143. Therefore, driving efficiency can be improved.

[0349] Figure 13a It is along Figure 12a The cross-sectional view taken by line RR' in the diagram, and Figure 13b Is Figure 13a A schematic view of the motion of the first camera actuator shown in the figure.

[0350] Reference Figure 13a and Figure 13b It can perform X-axis tilting. That is, OIS can be achieved when the mover 1130 tilts or rotates in the Y-axis direction.

[0351] In the embodiment, the first magnet 1151a and the second magnet 1151b disposed on the retainer 1131 can form electromagnetic forces with the first coil 1152a and the second coil 1152b respectively, thereby causing the tilting guide portion 1141 and the mover 1130 to tilt or rotate based on the first direction (X-axis direction).

[0352] Specifically, the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 can be transmitted to the first component 1126 and the retainer 1131, and finally to the inclined guide portion 1141 disposed between the retainer 1131 and the first component 1126. Therefore, the inclined guide portion 1141 can be squeezed by the passive element 1130 and the first housing 1120 by the aforementioned repulsive force.

[0353] Furthermore, the first-first protrusion PR1a and the first-second protrusion PR1b may be spaced apart in the first direction (X-axis direction) and supported by the first protrusion hole PH1 formed in the fourth mounting recess 1131S4a of the retainer 1131. Additionally, in this embodiment, the tilting guide portion 1141 may rotate or tilt relative to the first protrusion PR1 protruding toward the retainer 1131 (e.g., toward a third direction) as a reference axis (or rotation axis), i.e., rotate or tilt in the first direction (X-axis direction).

[0354] For example, the mover 1130 achieves OIS by rotating a second angle θ2 (Y1→Y1a) in the Y-axis direction through the second electromagnetic forces F2A and F2B between the first magnet 1151a and the second magnet 1151b disposed in the first mounting recess and the first coil unit 1152a and the second coil unit 1152b disposed on the first substrate side and the second substrate side. Alternatively, the mover 1130 achieves OIS by rotating a second angle θ2 (Y1→Y1b) in the opposite direction to the Y-axis direction through the second electromagnetic forces F2A and F2B between the first magnet 1151a and the second magnet 1151b disposed in the first mounting recess and the first coil unit 1152a and the second coil unit 1152b disposed on the first substrate side and the second substrate side. The second angle θ2 can be, but is not limited to, ±1° to ±3°.

[0355] Here, unlike what is shown, the second electromagnetic forces F2A and F2B can be generated in the third direction or in the opposite direction. Furthermore, although electromagnetic forces are applied to the coil, in this specification, the coil is coupled to a fixed housing, and therefore, it will be described that the magnet and the retainer coupled to the magnet move by electromagnetic forces. The electromagnetic forces will be described based on the direction of movement of the magnet and the retainer. For example, when the first coil receives an electromagnetic force in the direction opposite to the third direction (Z-axis direction), the first magnet and one side of the retainer 1131 adjacent to the first magnet receive a force in the third direction (Z-axis direction) by electromagnetic forces. Similarly, when the second coil receives an electromagnetic force in the third direction (Z-axis direction), the second magnet and the other side of the retainer 1131 adjacent to the second magnet receive a force in the direction opposite to the third direction (Z-axis direction) by electromagnetic forces. Therefore, as shown, the retainer 1131 can move by receiving a force in the 'F2A' direction. Conversely, the retainer 1131 can be moved by receiving a force in the 'F2B' direction. Therefore, the second electromagnetic forces F2A and F2B are electromagnetic forces generated by the first coil and the second coil and the first magnet and the second magnet as described above, and correspond to the moving force of the retainer.

[0356] Thus, according to the embodiment, the second actuator can control the mover 1130 to rotate in a first direction (X-axis direction) or a second direction (Y-axis direction) by the electromagnetic force between the drive magnet in the holder and the drive coil disposed in the first housing, thereby minimizing the occurrence of eccentricity or tilting during OIS implementation and providing optimal optical characteristics. Furthermore, as described above, "Y-axis tilt" refers to rotation or tilting in the first direction (X-axis direction), and "X-axis tilt" refers to rotation or tilting in the second direction (Y-axis direction).

[0357] Figure 14 This is a view showing the assembly sequence of the first camera actuator according to an embodiment.

[0358] Reference Figure 14 A method for assembling the first camera actuator according to an embodiment may include: the steps of combining a first coil to a third coil and a first substrate unit with a first housing; the steps of combining a first mover 1130, a tilt guide portion 1141, a first member 1126 and a second member 1131a with the first housing; and the steps of inserting the combined mover 1130, tilt guide portion 1141, first member 1126 and second member 1131a into the first housing 1120.

[0359] In this embodiment, after the step of bonding the first to third coils and the first substrate unit to the first housing, the step of inserting the bonded mover 1130, tilt guide portion 1141, first member 1126, and second member 1131a into the first housing 1120 can be performed. Therefore, the influence of tolerances or foreign impurities on the optical components or holder, which occurs when the first to third coils and the first substrate unit are bonded to the first housing, can be minimized. Additionally, the driving accuracy of the first camera actuator can be improved.

[0360] Furthermore, since the mover 1130, the tilt guide portion 1141, the first member 1126 and the second member 1131a are inserted laterally into the first housing 1120, for example along a third direction (Z-axis direction), the jitter applied to the mover 1130, the tilt guide portion 1141, the first member 1126 and the second member 1131a can be minimized compared to the case of vertical insertion.

[0361] Furthermore, the sum of the length (ka) of the central portion of the first member 1126 (corresponding to the inclined guide portion, overlapping with the 'connecting member' between the first and second through holes in the third direction, or corresponding to the 'connecting member' between the first and second through holes) in the third direction (Z-axis direction) and the length (kb) of the member base of the second member 1131a in the third direction (Z-axis direction) can be equal to or less than the length (kc) of the upper and lower frames (corresponding to the upper and lower members) connected to the central portion of the first member 1126 in the third direction (Z-axis direction). With this configuration, as described above, even when the second member 1131a is tilted or rotated, the second member 1131a does not need to protrude outward from the outer surface of the first member 1126.

[0362] Additionally, as described above, the first component 1126 can be combined with the first housing 1120 to form a housing. For example, a housing can consist of a first housing 11200 and a first second housing as the first component.

[0363] Figure 15 This is a perspective view of the second camera actuator according to the embodiment. Figure 16 This is an exploded perspective view of the second camera actuator according to the embodiment. Figure 17 It is along Figure 15 The cross-sectional view taken from line DD' in the diagram, and Figure 18 It is along Figure 15 The cross-sectional view of line EE' in the diagram.

[0364] Reference Figures 15 to 18According to an embodiment, the second camera actuator 1200 may include a lens unit 1220, a second housing 1230, a second drive unit 1250, a base unit (not shown), and a second substrate unit 1270. Additionally, the second camera actuator 1200 may also include a second shield (not shown), an elastic portion (not shown), and a bonding member (not shown). Furthermore, the second camera actuator 1200 may also include an image sensor IS.

[0365] The second shield (not shown) may be positioned in a region (e.g., the outermost) of the second camera actuator 1200 to surround the components (lens unit 1220, second housing 1230, elastic portion (not shown), second drive unit 1250, base unit (not shown), second substrate unit 1270 and image sensor IS) which will be described later.

[0366] The second shield (not shown) can block or reduce electromagnetic waves generated from the outside. Therefore, the occurrence of malfunctions in the second drive unit 1250 can be reduced.

[0367] The lens unit 1220 can be located within a second shield (not shown). The lens unit 1220 can move along a third direction (Z-axis). Therefore, the aforementioned AF function can be performed.

[0368] Specifically, the lens unit 1220 may include a lens assembly 1221 and a coil holder 1222.

[0369] Lens assembly 1221 may include at least one lens. Alternatively, there may be multiple lens assemblies 1221, but only one will be described below.

[0370] The lens assembly 1221 can be coupled to the coil holder 1222 and moved along a third direction (Z-axis direction) by electromagnetic force generated from the fourth magnet 1252a and the second magnet 1252b coupled to the coil holder 1222.

[0371] The coil holder 1222 may have an open area surrounding the lens assembly 1221. Furthermore, the coil holder 1222 can be coupled to the lens assembly 1221 by various methods. Additionally, the coil holder 1222 may have a recess on its side surface, and can be coupled to the fourth magnet 1252a and the second magnet 1252b through the recess. A bonding member or the like may be coated into the recess.

[0372] Additionally, the coil holder 1222 can be coupled with an elastic portion (not shown) at its upper and rear ends. Therefore, the coil holder 1222 can be supported by the elastic portion (not shown) when moving along a third direction (Z-axis). That is, the coil holder 1222 can move along a third direction (Z-axis) while its position is maintained. The elastic portion (not shown) can be made of a leaf spring.

[0373] The second housing 1230 may be disposed between the lens unit 1220 and the second shield (not shown). Alternatively, the second housing 1230 may be configured to surround the lens unit 1220.

[0374] A hole may be formed on the side of the second housing 1230. The fourth coil 1251a and the fifth coil 1251b may be disposed in the hole. The hole may be positioned to correspond to the recess of the coil holder 1222 described above.

[0375] The fourth magnet 1252a can be positioned to face the fourth coil 1251a. In addition, the second magnet 1252b can be positioned to face the fifth coil 1251b.

[0376] The elastic portion (not shown) may include a first elastic member (not shown) and a second elastic member (not shown). The first elastic member (not shown) may be coupled to the upper surface of the coil holder 1222. The second elastic member (not shown) may be coupled to the lower surface of the coil holder 1222. Alternatively, the first elastic member (not shown) and the second elastic member (not shown) may be formed as leaf springs as described above. Furthermore, the first elastic member (not shown) and the second elastic member (not shown) may provide elasticity for the movement of the coil holder 1222.

[0377] The second drive unit 1250 can provide driving forces F3 and F4 for moving the lens unit 1220 along a third direction (Z-axis). The second drive unit 1250 may include a drive coil 1251 and a drive magnet 1252.

[0378] The lens unit 1220 can be moved along a third direction (Z-axis direction) by the electromagnetic force formed between the drive coil 1251 and the drive magnet 1252.

[0379] The drive coil 1251 may include a fourth coil 1251a and a fifth coil 1251b. The fourth coil 1251a and the fifth coil 1251b may be disposed in holes formed on the side of the second housing 1230. Furthermore, the fourth coil 1251a and the fifth coil 1251b may be electrically connected to the second substrate unit 1270. Therefore, the fourth coil 1251a and the fifth coil 1251b can receive current through the second substrate unit 1270.

[0380] The driving magnet 1252 may include a fourth magnet 1252a and a fifth magnet 1252b. The fourth magnet 1252a and the fifth magnet 1252b may be disposed in the aforementioned recess of the coil holder 1222 and may be positioned to correspond to the fourth coil 1251a and the fifth coil 1251b.

[0381] A base unit (not shown) may be located between the lens unit 1220 and the image sensor IS. The base unit (not shown) may have a component, such as a filter, fixed to it. Alternatively, the base unit (not shown) may be configured to surround the image sensor IS. This configuration improves the reliability of the device by protecting the image sensor IS from external influences.

[0382] Alternatively, the second camera actuator can be a zoom actuator or an autofocus (AF) actuator. For example, the second camera actuator can support one or more lenses and perform autofocus or zoom functions by moving the lenses in response to a control signal from a predetermined controller.

[0383] Additionally, the second camera actuator can provide fixed zoom or continuous zoom. For example, the second camera actuator can provide movement of the lens assembly 1221.

[0384] Additionally, the second camera actuator may include multiple lens assemblies. For example, the second camera actuator may include at least one of a first lens assembly (not shown), a second lens assembly (not shown), a third lens assembly (not shown), and a guide pin (not shown). The above description can be applied here. Therefore, the second camera actuator can perform a high magnification zoom function via a drive unit. For example, the first lens assembly (not shown) and the second lens assembly (not shown) may be moving lenses that move via a drive unit and a guide pin (not shown), and the third lens assembly (not shown) may be, but is not limited to, a fixed lens. For example, the third lens assembly (not shown) may function as a focuser that images light at a specific location, and the first lens assembly (not shown) may function as a transducer that re-images the image formed by the third lens assembly to another location. Meanwhile, the magnification variation of the first lens assembly (not shown) can be large because the distance from the object or the image distance varies greatly, and the first lens assembly (not shown), as a transducer, can play an important role in changing the focal length or magnification of the optical system. On the other hand, the imaging point formed by the first lens assembly (not shown) as a transducer may vary slightly depending on the location. Therefore, the second lens assembly (not shown) can perform a position compensation function for the image formed by the transducer. For example, the second lens assembly (not shown) can perform the function of a compensator that accurately forms an imaging point formed by the first lens assembly (not shown) as a transducer at the actual image sensor location.

[0385] The image sensor IS can be located inside or outside the second camera actuator. In one embodiment, as shown, the image sensor IS can be located inside the second camera actuator. The image sensor IS can receive light and convert the received light into electrical signals. Additionally, the image sensor IS can include multiple pixels arranged in an array. Furthermore, the image sensor IS can be positioned on the optical axis.

[0386] Figure 19 This is a perspective view of a camera module according to another embodiment. Figure 20a Some parts were omitted from it. Figure 19 A 3D view of the camera module, and Figure 20b yes Figure 20a An exploded stereoscopic view of the camera module.

[0387] Reference Figure 19 , Figure 20a and Figure 20b According to another embodiment, the camera module 1000A may include one or more camera actuators. For example, the camera actuator 1000A according to the embodiment may include a second camera actuator 100 and a first camera actuator 300. The camera module according to the embodiment may include a housing 100c protecting the second camera actuator 100 and the first camera actuator 300. Here, the housing 100c may correspond to the aforementioned cover. As described above, the camera module can be used interchangeably with 'camera device', 'camera apparatus', etc.

[0388] The second camera actuator 100 can be electrically connected to the first substrate 160. The second camera actuator 100 can support one or more lenses and perform autofocus or zoom functions by moving the lenses along the optical axis based on control signals from a predetermined controller.

[0389] Additionally, the first camera actuator 300 can be electrically connected to a second substrate (not shown). The second substrate can be electrically connected to the first substrate 160. The first camera actuator 300 can be an optical image stabilizer (OIS) actuator. In this case, light incident from the outside can strike the first camera actuator 300. Furthermore, light incident on the first camera actuator 300 can change its path and strike the second camera actuator 100, and light passing through the second camera actuator 100 can be transmitted to an optical sensor (not shown).

[0390] In the following text, the zoom actuator or AF actuator serving as the second camera actuator 100 will be described first, and then the OIS actuator serving as the first camera actuator 300 will be described. Furthermore, in this embodiment, the above description of the first camera actuator can also be applied to the second camera actuator 100. Similarly, in this embodiment, the above description of the second camera actuator can also be applied to the first camera actuator 300.

[0391] <Second Camera Actuator 100>

[0392] The second camera actuator 100 will now be described.

[0393] Figure 21 This is a perspective view of the second camera actuator 100 according to the embodiment. Figure 22 Some parts were omitted from it. Figure 21 The image shows a perspective view of a camera actuator according to an embodiment, and... Figure 23 Some parts were omitted from it. Figure 21 An exploded perspective view of a camera actuator according to an embodiment is shown in the figure.

[0394] Reference Figure 21 According to the embodiment, the second camera actuator 100 may include a base 20, a first substrate 160 disposed outside the base 20, a fourth drive unit 142, and a third lens assembly 130.

[0395] Figure 22 It was omitted. Figure 21 A perspective view of the base 20 and the first substrate 160. (Refer to...) Figure 22 According to the embodiments, the second camera actuator 100 may include a first guide portion 210, a second guide portion 220, a first lens assembly 110, a second lens assembly 120, a third drive unit 141, and a fourth drive unit 142.

[0396] The third drive unit 141 and the fourth drive unit 142 may include coils or magnets.

[0397] For example, when the third driving unit 141 and the fourth driving unit 142 include coils, the third driving unit 141 may include a first coil unit 141b and a third magnetic yoke 141a, and the fourth driving unit 142 may include a second coil unit 142b and a fourth magnetic yoke 142a.

[0398] Alternatively, the third drive unit 141 and the fourth drive unit 142 may include magnets. However, the description is based on coils.

[0399] At once Figure 23Regarding the directions of the xyz axes shown, as mentioned above, the z-axis can refer to the direction of the optical axis or a direction parallel to the optical axis, the xz plane can indicate the ground, the x-axis can refer to the direction perpendicular to the z-axis on the ground (xz plane), and the y-axis can refer to the direction perpendicular to the ground.

[0400] Reference Figure 23 The second camera actuator 100 according to the embodiment may include a base 20, a first guide portion 210, a second guide portion 220, a first lens assembly 110, a second lens assembly 120, and a third lens assembly 130. The base 20 may correspond to the aforementioned second housing. Furthermore, the second lens assembly 120 and the third lens assembly 130 may correspond to the lens assemblies of the aforementioned second camera actuator. Additionally, the first guide portion 210 and the second guide portion 220 may correspond to the aforementioned guide pins. Furthermore, the third drive unit 141 and the fourth drive unit 142 may correspond to the aforementioned fourth coil and fifth coil or the aforementioned fourth magnet and fifth magnet.

[0401] For example, the second camera actuator 100 according to the embodiment may include a base 20, a first guide portion 210 disposed on one side of the base 20, a second guide portion 220 disposed on the other side of the base 20, a first lens assembly 110 corresponding to the first guide portion 210, a second lens assembly 120 corresponding to the second guide portion 220, and a first ball bearing 117 disposed between the first guide portion 210 and the first lens assembly 110 (see...). Figure 25a ), and a second ball bearing (not shown) disposed between the second guide portion 220 and the second lens assembly 120.

[0402] Alternatively, the implementation may include a third lens assembly 130 disposed in front of the first lens assembly 110 along the optical axis direction.

[0403] In the following sections, the specific features of the camera module according to the embodiments will be described in detail with reference to the accompanying drawings.

[0404] <Guide Section>

[0405] Reference Figure 22 and Figure 23The embodiment may include a first guide portion 210 disposed adjacent to a first sidewall of the base 20 and a second guide portion 220 disposed adjacent to a second sidewall of the base 20. The first and second sidewalls of the base 20 may form a receiving space within the base 20 and may be configured such that the receiving space faces each other between the first and second sidewalls. Furthermore, the first guide portion 210 and the second guide portion 220 may be disposed within the receiving space formed by the first and second sidewalls of the base 20. Specifically, the first guide portion 210 may be disposed within the receiving space adjacent to the inner surface of the first sidewall of the base 20. Similarly, the second guide portion 220 may be disposed within the receiving space adjacent to the inner surface of the second sidewall of the base 20.

[0406] The first guide portion 210 may be disposed between the first lens assembly 110 and the first sidewall of the base 20.

[0407] The second guide portion 220 may be disposed between the second lens assembly 120 and the second sidewall of the base 20. The first and second sidewalls of the base may be configured to face each other.

[0408] According to the embodiment, when the lens assembly is driven with the first guide portion 210 and the second guide portion 220, which are precisely digitally controlled in the base, engaged with each other, the frictional torque is reduced to decrease frictional resistance. Therefore, there are technical effects such as increasing the driving force during zooming, reducing power consumption, and improving control characteristics.

[0409] Therefore, according to the implementation method, by minimizing the frictional torque during zooming while preventing lens eccentricity, lens tilt, and misalignment of the central axes of the lens group and the image sensor, it has the technical effect of significantly improving image quality or resolution.

[0410] In the typical case where the guide rail is arranged on the base itself, there is a technical problem that the dimensions are difficult to manage due to the presence of gradients that depend on the injection direction, and frictional torque increases and driving force decreases when injection is not performed correctly.

[0411] However, according to the embodiment, since the guide rail is not set on the base itself, the first guide portion 210 and the second guide portion 220, which are formed and assembled separately from the base 20, are used separately, thus achieving the following special technical effect: it can prevent the occurrence of gradients that depend on the injection direction.

[0412] The base 20 can be injected along the Z-axis. In the typical case where the track and base are formed integrally, there is a problem that the straightness of the track is deformed due to the gradient that occurs when the track is injected along the Z-axis.

[0413] According to the implementation, since the first guide portion 210 and the second guide portion 220 are injected separately from the base 20, gradients can be significantly prevented compared to the typical case, thereby achieving a special technical effect of being able to inject accurately and preventing gradients due to injection.

[0414] In this embodiment, the first guide portion 210 and the second guide portion 220 are injected along the X-axis, and the injection length can be shorter than the base 220. In this case, when the track 212 and the track 222 are arranged on the first guide portion 210 and the second guide portion 220, the technical effect of minimizing the occurrence of gradients during injection and reducing the possibility of track straight-line deformation can be achieved.

[0415] Figure 24 This is an enlarged perspective view of the first guide portion 210 and the second guide portion 220 in the camera actuator according to the embodiment.

[0416] Reference Figure 24 In one embodiment, the first guide portion 210 may include one or more first tracks 212. Additionally, the second guide portion 220 may include one or more second tracks 222.

[0417] For example, the first track 212 of the first guide portion 210 may include a first track 212a and a first track 212b. The first guide portion 210 may include a first support portion 213 between the first track 212a and the first track 212b.

[0418] According to the implementation method, because each lens assembly has a track, there is a technical effect that even if one track is deformed, the movement accuracy of the lens assembly can be ensured by means of another track.

[0419] Furthermore, according to the implementation, since each lens assembly has two tracks, even if the problem of friction of the spherical part, which will be described later, occurs on one track, the rolling drive can proceed smoothly on the other track, and there is a technical effect of ensuring the driving force for the movement of the lens assembly.

[0420] The first track 212 can be connected from one surface of the first guide portion 210 to the other surface of the first guide portion 210.

[0421] The camera actuator according to the embodiment and the camera module including the camera actuator can solve the problem of lens misalignment or tilt during zooming, and can correctly align multiple lens groups and adjust the spacing between the multiple lens groups. Therefore, there is a technical effect of significantly improving image quality or resolution by preventing changes in viewing angle or defocus.

[0422] For example, according to the implementation, since the first guide portion 210 includes a first-first track 212a and a first-second track 212a, and the first-first track 212a and the first-second track 212a guide the first lens assembly 110, there is a technical effect of increasing alignment accuracy.

[0423] Furthermore, according to the implementation method, since each lens assembly has a track, there are technical effects such as ensuring a long distance between the spherical parts (described later), improving driving force, preventing magnetic field interference, and preventing tilting of the lens assembly in a stationary or moving state.

[0424] The first guide portion 210 may include a first guide protrusion 215 extending in a lateral direction perpendicular to the extension direction of the first track 212.

[0425] The first guide protrusion 215 may include a first protrusion 214p. For example, the first protrusion 214p may include a first-first protrusion 214p1 and a first-second protrusion 214p2.

[0426] Additionally, refer to Figure 24 In an implementation, the second guide portion 220 may include one or more second tracks 222.

[0427] For example, the second track 222 of the second guide portion 220 may include a second-first track 222a and a second-second track 222b. The second guide portion 220 may include a second support portion (not shown) between the second-first track 222a and the second-second track 222b.

[0428] The second track 222 can be connected from one surface of the second guide portion 220 to the other surface of the second guide portion 220.

[0429] Additionally, the second guide portion 220 may include a second guide protrusion 225 extending in a lateral direction perpendicular to the direction in which the second track 222 extends.

[0430] The second guide protrusion 225 may have a second protrusion 224p including a second-first protrusion 224p1 and a second-second protrusion 224p2.

[0431] The first-first protrusion 214p1 and the first-second protrusion 214p2 of the first guide portion 210, and the second-first protrusion 224p1 and the second-second protrusion 224p2 of the second guide portion 220, can be combined with the third lens assembly 130, which will be described later.

[0432] According to the implementation, since the first guide portion 210 includes a first-first track 212a and a first-second track 212b, and the first-first track 212a and the first-second track 212b guide the first lens assembly 110, there is a technical effect of increasing alignment accuracy.

[0433] Furthermore, according to the embodiment, since the second guide portion 220 includes a second-first track 222a and a second-second track 222b, and the second-first track 222a and the second-second track 222b guide the second lens assembly 120, there is a technical effect of increasing alignment accuracy.

[0434] In addition, because each lens assembly has a track, there is a technical advantage that even if one track is deformed, the movement accuracy of the lens assembly can be ensured by using another track.

[0435] Furthermore, according to the implementation method, since each lens assembly has a track, there are technical effects such as ensuring a long distance between the spherical parts (described later), improving driving force, preventing magnetic field interference, and preventing tilting of the lens assembly in a stationary or moving state.

[0436] Furthermore, according to the implementation, since each lens assembly has a track, even if the problem of friction of the spherical part, which will be described later, occurs on one track, the rolling drive can proceed smoothly on the other track, and there is a technical effect of ensuring the driving force.

[0437] Furthermore, according to the embodiment, when the guide rail is not provided on the base itself, the first guide portion 210 and the second guide portion 220 are formed and assembled separately from the base 20, thus achieving a special technical effect: it can prevent the occurrence of a gradient depending on the injection direction of the overall structure of the base and the guide rail.

[0438] In the typical case where the guide rail is arranged on the base itself, there is a problem that the dimensions are difficult to manage due to the presence of a gradient that depends on the injection direction, and the frictional torque increases and the driving force decreases when the injection is not performed correctly.

[0439] Figure 25a Is Figure 23 The image shows a perspective view of the first lens assembly in a camera actuator according to an embodiment, and... Figure 25b Some parts were removed from it. Figure 25a A perspective view of the first lens assembly shown in the figure.

[0440] Reference Figure 24The implementation may include a first lens assembly 110 that moves along a first guide portion 210 and a second lens assembly 120 that moves along a second guide portion 220.

[0441] Reference Figure 25a The first lens assembly 110 may include a first lens barrel 112a on which a first lens 113 is disposed, and a first drive unit housing 112b on which a first drive unit 116 is disposed. The first lens barrel 112a and the first drive unit housing 112b may be a first housing, and the first housing may have a cylindrical or tubular shape. The first drive unit 116 may be, but is not limited to, a magnet drive unit, and in some cases may be provided with a coil.

[0442] Additionally, the second lens assembly 120 may include a second lens barrel (not shown) on which a second lens (not shown) is disposed, and a second drive unit housing (not shown) on which a second drive unit (not shown) is disposed. The second lens barrel (not shown) and the second drive unit housing (not shown) may be a second housing, and the second housing may have a cylindrical or tubular shape. The second drive unit may be, but is not limited to, a magnet drive unit, and in some cases, a coil may be provided. In this case, the second lens assembly 120 may have substantially the same structure as the first lens assembly 110, and therefore a detailed description of the second lens assembly 120 will be omitted.

[0443] The first drive unit 116 can correspond to two first tracks 212 and the second drive unit can correspond to two second tracks 222.

[0444] In implementations, a single spherical component or multiple spherical components can be used to drive or move the lens assembly. For example, in an implementation, a first rolling bearing 117 disposed between the first guide portion 210 and the first lens assembly 110 and a second rolling bearing (not shown) disposed between the second guide portion 220 and the second lens assembly 120 may be included.

[0445] For example, in one embodiment, the first rolling bearing 117 may include one or more first-first rolling bearings 117a disposed on the upper portion of the first drive unit housing 112b and one or more first-second rolling bearings 117b disposed on the lower portion of the first drive unit housing 112b.

[0446] In one embodiment, the first-first rolling bearing 117a in the first rolling bearing 117 can move along the first-first track 212a, which is one of the first tracks 212, and the first-second rolling bearing 117b in the first rolling bearing 117 can move along the first-second track 212b, which is the other of the first tracks 212.

[0447] The camera actuator according to the embodiment and the camera module including the camera actuator can solve the problem of lens misalignment or tilt during zooming, and can correctly align multiple lens groups and adjust the spacing between the multiple lens groups. Therefore, there is a technical effect of significantly improving image quality or resolution by preventing changes in viewing angle or defocus.

[0448] For example, according to the embodiment, since the first guide portion includes a first-first track and a first-second track, and the first-first track and the first-second track guide the first lens assembly 110, there is a technical effect that increases the alignment accuracy of the second lens assembly 110 with the optical axis when the first lens assembly 110 moves.

[0449] Reference Figure 25b In one embodiment, the first lens assembly 110 may have a first assembly groove 112b1 provided with a first rolling bearing 117. The second lens assembly 120 may have a second assembly groove (not shown) provided with a second spherical member.

[0450] There may be multiple first assembly grooves 112b1 in the first lens assembly 110. In this case, the distance between two first assembly grooves 112b1 in the optical axis direction may be greater than the thickness of the first lens barrel 112a.

[0451] In one embodiment, the first assembly groove 112b1 of the first lens assembly 110 may have a V-shape. Additionally, the second assembly groove (not shown) of the second lens assembly 120 may also have a V-shape. Besides a V-shape, the first assembly groove 112b1 of the first lens assembly 110 may have a U-shape or a shape that contacts the first rolling bearing 117 at two or three points. Similarly, besides a V-shape, the second assembly groove (not shown) of the second lens assembly 120 may have a U-shape or a shape that contacts the first rolling bearing 117 at two or three points. These different shapes easily resolve deformations caused by tolerances.

[0452] Figure 26 This is a schematic view of the drive in a camera actuator according to an embodiment.

[0453] Reference Figure 26 The interaction in a camera actuator according to an embodiment is described, wherein an electromagnetic force (DEM) is generated between a first drive unit 116, which is a magnet drive unit, and a first coil unit 141b.

[0454] As in Figure 26 As shown, in the camera actuator according to the embodiment, the magnetization type of the first drive unit 116 can be a vertical magnetization type. For example, in the embodiment, both the N pole 116N and the S pole 116S of the magnet can be magnetized to face the first coil unit 141b. Therefore, the N pole 116N and the S pole 116S of the magnet can be respectively set to correspond to the region in the first coil unit 141b in which the current flows along the y-axis direction perpendicular to the ground. In this embodiment, the first drive unit 116 can correspond to either the fourth magnet or the fifth magnet, and the second drive unit 126 can correspond to the other of the fourth magnet and the fifth magnet. In addition, in this embodiment, the first drive unit to the fourth drive unit correspond to the magnet and coil of the second drive unit.

[0455] Reference Figure 26 In the embodiment, when a magnetic force (DM) is applied from the N pole 116N of the first drive unit 116 in the direction opposite to the x-axis (the direction of the magnetic force can be the positive or negative direction shown in the figure), and when a current (DE) flows in the region of the first coil unit 141b corresponding to the N pole 116N in the y-axis direction, an electromagnetic force (DEM) acts in the z-axis direction according to Fleming's left-hand rule.

[0456] Additionally, in the embodiment, when a magnetic force (DM) is applied from the S pole 116S of the first drive unit 116 along the x-axis, and when a current (DE) flows in the first coil unit 141b corresponding to the S pole 116S in the opposite direction to the y-axis perpendicular to the ground, an electromagnetic force (DEM) acts along the z-axis according to Fleming's left-hand rule (the direction of the electromagnetic force can be the positive or negative direction shown in the figure).

[0457] Meanwhile, since the third drive unit 141, including the first coil unit 141b, is in a fixed state, the first lens assembly 110, which is the mover provided with the first drive unit 116, can move backward and forward along the track of the first guide portion 210 in a direction parallel to the z-axis by electromagnetic force (DEM) depending on the current direction. The electromagnetic force (DEM) can be controlled to be proportional to the current (DE) applied to the first coil unit 141b.

[0458] Similarly, in the camera actuator according to the embodiment, an electromagnetic force (DEM) is generated between the second magnet (not shown) and the second coil unit 142b, such that the second lens assembly 120 can move along the track of the second guide portion 220 parallel to the optical axis.

[0459] <First substrate>

[0460] Figure 27a This is a perspective view of the first substrate according to the first embodiment, viewed from the first direction, with the first coil unit removed. Figure 27b This is a perspective view of the first substrate according to the first embodiment, viewed from a second direction, with the first coil unit removed. Figure 27c This is a perspective view showing a first substrate according to a first embodiment, in which a first coil unit is provided. Figure 28a This is a cross-sectional view of the first substrate according to the first embodiment. Figure 28b This is a plan view of the first substrate according to the first embodiment, from which the first coil unit has been removed, and Figure 28c This is a plan view of the first substrate according to the first embodiment, in which the first coil unit is provided.

[0461] In the following text, reference will be made to Figures 27a to 28c The first substrate according to the first embodiment will be described. The first substrate may correspond to the second substrate unit described above.

[0462] Before describing the first plate, when AF or zoom is achieved, multiple lens assemblies are driven by electromagnetic forces between a magnet and a coil. To obtain position information of the lens assemblies, a position detection sensor can be placed inside the winding of the coil. Here, the position detection sensor can be a magnetic sensor capable of detecting changes in magnetic force. For example, the position detection sensor can be, but is not limited to, a Hall sensor. However, in the following description, it is assumed that the position detection sensor is a Hall sensor.

[0463] The Hall sensor is located inside the winding of the coil, and the inside of the coil winding can be a hollow part of the coil. The Hall sensor can obtain the position information of the lens assembly by detecting changes in the magnetic flux of a magnet placed in the lens assembly.

[0464] However, typically, the driver IC and Hall sensor used to control the movement of the lens assembly are mounted on separate substrates. In this case, the mounting status of the Hall sensor can be tested by measuring its Hall resistance in the mounted state. However, recently, for purposes such as thinner camera modules and improved control precision, the driver IC and Hall sensor are both mounted on a single substrate. Furthermore, the Hall sensor mounted on the substrate is connected to the driver IC.

[0465] In this configuration, multiple pads are formed on the substrate, and all pads are connected to the driver IC. Additionally, the Hall sensor is only connected to the driver IC and not directly to the Hall sensor itself.

[0466] Here, the Hall sensor is mounted on the first substrate 160 using surface mount technology (SMT). In this case, approximately 3% to 4% of short-circuit defects occur during the SMT process of the Hall sensor. However, the substrate does not have pads connected to the Hall sensor, making it impossible to test the mounting status of the Hall sensor. That is, checking the mounting status of the Hall sensor is done by measuring the Hall resistance, and to check the mounting status of the Hall sensor, testing should be performed through the pads connected to the driver IC. However, because the pads are connected to the Hall sensor through the driver IC rather than directly to the Hall sensor, it is not possible to directly test the Hall sensor.

[0467] Therefore, in one embodiment, a test pad directly connected to the Hall sensor is formed on the first substrate 160 to test the installation status of the Hall sensor.

[0468] The first substrate 160 may be connected to a predetermined power supply unit (not shown) to supply power to each of the third drive unit 141 and the fourth drive unit 142. Specifically, the first substrate 160 may include a first coil unit 141b of the third drive unit 141. Additionally, the first substrate 160 may supply power to the first coil unit 141b. Furthermore, the first substrate 160 may include a second coil unit 142b of the fourth drive unit 142. Additionally, the first substrate 160 may supply power to the second coil unit 142b. The first substrate 160 may include a circuit board with electrically connectable wiring patterns, such as a rigid printed circuit board (rigid PCB), a flexible printed circuit board (flexible PCB), and a rigid-flexible printed circuit board (rigid-flexible PCB).

[0469] The first substrate 160 includes a first substrate region 160a, a second substrate region 160b, and a third substrate region 160c.

[0470] The first substrate region 160a may be disposed outside the first sidewall of the base 20. The second substrate region 160b may be disposed outside the second sidewall of the base 20. Furthermore, the third substrate region 160c may connect the first substrate region 160a and the second substrate region 160b. The third substrate region 160c may be disposed outside the bottom portion of the base 20.

[0471] Driver IC 161 can be disposed on one surface of the first substrate region 160a. Driver IC 161 can receive sensing information obtained from a gyroscope sensor (not shown) and use the received sensing information to control the magnitude of the current or voltage supplied to the first coil unit 141b. Additionally, based on the zoom magnification or focal position information corresponding to the zoom magnification, driver IC 161 can control the magnitude of the current or voltage supplied to the first coil unit 141b. Furthermore, driver IC 161 can receive sensing information obtained from a gyroscope sensor (not shown) and use the received sensing information to control the magnitude of the current or voltage supplied to the second coil unit 142b. Additionally, based on the zoom magnification or focal position information corresponding to the zoom magnification, driver IC 161 can control the magnitude of the current or voltage supplied to the second coil unit 142b.

[0472] Electronic components 162, other than the driver IC 161, may also be disposed on the first substrate region 160a. The electronic components 162 may be, but are not limited to, capacitors. For example, the electronic components 162 may be a memory that stores control information for controlling the magnitude of the current or voltage supplied to the first coil unit 141b or the second coil unit 142b.

[0473] Meanwhile, although the driver IC 161 and electronic component 162 are depicted in the accompanying drawings as being disposed in the first substrate region 160a of the first substrate 160, this is not limiting. For example, the driver IC 161 and electronic component 162 may be disposed on the second substrate region 160b of the first substrate 160. For example, one of the driver IC 161 and electronic component 162 may be disposed on the first substrate region 160a of the first substrate 160, and the other may be disposed on the second substrate region 160b of the first substrate 160.

[0474] The first coil unit 141b of the third driving unit 141 is disposed in the first substrate region 160a of the first substrate 160.

[0475] Additionally, the first Hall sensor 71 can be disposed within the internal region of the first coil unit 141b. In this case, in the embodiment, multiple Hall sensors can be disposed within the internal region of the first coil unit 141b. For example, a first-first Hall sensor 71a and a first-second Hall sensor 71b spaced apart from each other in the optical axis direction can be disposed within the internal region of the first coil unit 141b. That is, with the recent increase in zoom magnification of camera modules, the travel of the lens assembly has increased, and therefore, it may be difficult to accurately detect the position of the lens assembly using only a single Hall sensor. Therefore, in the embodiment, multiple Hall sensors are used to accurately detect the position of the lens assembly within its travel range. However, the embodiment is not limited to the above. For example, the first Hall sensor 71 can be implemented with a single sensor, or it can be implemented with three or more sensors. Hereinafter, the first Hall sensor 71 will be described as consisting of a first-first Hall sensor 71a and a first-second Hall sensor 71b.

[0476] Simultaneously, a first test pad 163 connected to the first Hall sensor 71 is provided in the first substrate region 160a. Multiple first test pads 163 can be configured. For example, the number of first test pads 163 can be determined based on the number of first Hall sensors 71. That is, two first test pads can be configured in the first substrate region 160a to correspond to one Hall sensor. For example, the first Hall sensor 71 includes a first-first Hall sensor 71a and a first-second Hall sensor 71b, and therefore the first test pads 163 can include four first test pads.

[0477] Four first test pads 163 may be disposed on one surface of the first substrate region 160a of the first substrate 160 outside the first Hall sensor 71. For example, the four first test pads 163 may be disposed around the first Hall sensor 71 at positions spaced apart from the first Hall sensor 71 by a predetermined distance.

[0478] Preferably, four first test pads 163 can be disposed on one surface of the first substrate region 160a in a region corresponding to the first coil unit 141b. For example, the four first test pads 163 can be disposed to overlap with the first coil unit 141b on one surface of the first substrate region 160a. Preferably, the four first test pads 163 can be disposed in a direction perpendicular to the optical axis (e.g., Figure 26 The x-axis direction overlaps.

[0479] Therefore, at least a portion of one surface of the first coil unit 141b can be configured to directly face the four first test pads 163. This will be described in detail later.

[0480] That is, in order to test the installation status of the first Hall sensor 71, the four first test pads 163 on the first substrate 160 should be exposed to the outside. Furthermore, after the testing of the first Hall sensor 71 is completed, the exposed portions of the first test pads 163 should be covered with protective components. For example, if the first test pads 163 are exposed to the outside and in contact with another component, a short circuit may occur, leading to reliability issues.

[0481] In this embodiment, the first coil unit 141b is disposed on the first test pad 163. That is, the exposed portion of the first test pad 163 is covered by the first coil unit 141b, and thus the first coil unit 141b prevents the first test pad 163 from contacting other components. Simultaneously, the first coil unit 141b includes a coil pattern and a protective member (or insulating member) arranged around the coil pattern, and this solves the problem caused by contact between the first coil unit 141b and the first test pad 163.

[0482] In addition, the second coil unit 142b of the fourth driving unit 142 is disposed in the second substrate region 160b of the first substrate 160.

[0483] Additionally, the second Hall sensor 72 can be disposed within the internal region of the second coil unit 142b. In this case, in the embodiment, a plurality of second Hall sensors can be disposed within the internal region of the second coil unit 142b. For example, a second-first Hall sensor 72a and a second-second Hall sensor 72b spaced apart from each other in the optical axis direction can be disposed within the internal region of the second coil unit 142b.

[0484] Simultaneously, a second test pad 164 connected to the second Hall sensor 72 is provided in the second substrate region 160b. Multiple second test pads 164 can be configured. For example, the number of second test pads 164 can be determined based on the number of second Hall sensors 72. That is, two second test pads can be configured in the second substrate region 160b to correspond to one Hall sensor. For example, the second Hall sensor 72 includes a second-first Hall sensor 72a and a second-second Hall sensor 72b, and therefore the second test pads 164 can include four second test pads.

[0485] Four second test pads 164 may be disposed on one surface of the second substrate region 160b of the first substrate 160 outside the second Hall sensor 72. For example, the four second test pads 164 may be arranged to surround the second Hall sensor 72 at positions spaced apart from the second Hall sensor 72 by a predetermined distance.

[0486] Preferably, four second test pads 164 can be disposed on one surface of the second substrate region 160b in a region corresponding to the second coil unit 142b. For example, the four second test pads 164 can be disposed to overlap with the second coil unit 142b on one surface of the second substrate region 160b. Preferably, the four second test pads 164 can be disposed in a direction perpendicular to the optical axis (e.g., Figure 26 The second substrate region 160b can overlap with the second coil unit 142b in the x-axis direction. That is, one surface of the second substrate region 160b can be the surface of the outer surface facing the second sidewall of the base 20. In addition, the second test pad 164 can be configured to overlap with the second coil unit 142b in the direction facing the second sidewall of the base 20.

[0487] Therefore, at least a portion of one surface of the second coil unit 142b can be configured to directly face each of the four second test pads 164. This will be described in detail later.

[0488] In other words, in order to test the installation status of the second Hall sensor 72, the four second test pads 164 on the first substrate 160 should be exposed to the outside. Furthermore, after the testing of the second Hall sensor 72 is completed, the exposed portions of the second test pads 164 should be covered with protective components. For example, if the second test pads 164 are exposed to the outside and in contact with another component, a short circuit may occur, leading to reliability issues.

[0489] In this embodiment, the second coil unit 142b is disposed on the second test pad 164. That is, the exposed portion of the second test pad 164 is covered by the second coil unit 142b, and thus the second coil unit 142b prevents the second test pad 164 from contacting other components. Simultaneously, the second coil unit 142b includes a coil pattern and a protective member (or insulating member) arranged around the coil pattern, and this solves the problem caused by contact between the second coil unit 142b and the second test pad 164.

[0490] The arrangement of the first test pad 163 and the first coil unit 141b on the first substrate 160 will be described in detail later.

[0491] The first substrate 160 includes an insulating unit. The insulating unit may include an insulating layer 160-1, a first protective layer 160-3, and a second protective layer 160-4, which will be described later.

[0492] Specifically, the first substrate 160 includes an insulating layer 160-1.

[0493] The insulating layer 160-1 can be rigid or flexible.

[0494] For example, insulating layer 160-1 may include chemically tempered / semi-tempered glass such as soda-lime glass or aluminosilicate glass, insulating layer 160-1 may include reinforced plastic or soft plastic such as polyimide (PI), polyethylene terephthalate (PET), propylene glycol (PPG) or polycarbonate (PC), or insulating layer 160-1 may include sapphire.

[0495] Additionally, the insulating layer 160-1 can be partially rigid or partially flexible. Therefore, the first substrate 160 can have a partially flat surface and a partially bendable curved surface. For example, the first substrate 160 can be partially bend with any curvature or can bend with a surface having any curvature.

[0496] A circuit pattern may be provided on the insulating layer 160-1. The circuit pattern may include a first mounting pad (not shown) on which a driver IC 161 is mounted. The circuit pattern may include a second mounting pad (not shown) on which an electronic component 162 is mounted. The circuit pattern may include a first test pad 163 connected to the first Hall sensor 71. Additionally, the circuit pattern may include a connection line 160-2 connecting the first Hall sensor 71 and the first test pad 163, or connecting the first Hall sensor 71 and the driver IC 161.

[0497] A first protective layer 160-3 may be disposed on the insulating layer 160-1 to cover the circuit pattern. The first protective layer 160-3 may also be configured to expose the surface of the first test pad 163 in the circuit pattern disposed on the insulating layer 160-1. Although not shown in the figures, the first protective layer 160-3 may also be configured to expose the coil pad (not shown) connected to the first coil unit 141b in the circuit pattern. In this case, the first protective layer 160-3 may be solder resist.

[0498] The second protective layer 160-4 can be disposed on the first protective layer 160-3. The second protective layer 160-4 can be a cover layer. The second protective layer 160-4 can be configured to simultaneously expose the first test pad 163 disposed on the insulating layer 160-1.

[0499] That is, openings 160-5 can be formed in the first protective layer 160-3 and the second protective layer 160-4 to expose the surface of the first test pad 163. Additionally, the first test pad 163 can be exposed in one direction of the first substrate 160 through the opening 160-5. This direction can be the direction facing the outer surface of the first sidewall of the base 20. Specifically, the opening 160-5 can include a first opening region formed in the first protective layer 160-3 and a second opening region formed in the second protective layer 160-3.

[0500] Meanwhile, the first coil unit 141b can be disposed on the second protective layer 160-4. In this case, at least a portion of the first coil unit 141b can overlap with the opening 160-5 formed in the first protective layer 160-3 and the second protective layer 160-4. That is, the opening 160-5 formed in the first protective layer 160-3 and the second protective layer 160-4 can be covered by the first coil unit 141b.

[0501] That is, in the embodiment, with the first Hall sensor 71 installed as described above, the installation state can be tested by using the first test pad 163 exposed through the opening 160-5 and by measuring the resistance of the first Hall sensor 71. When the test of the installation state of the first Hall sensor 71 is completed, the first coil unit 141b is disposed on the opening 160-5. That is, in the embodiment, the exposed portion of the first test pad 163 is covered by the first coil unit 141b.

[0502] Accordingly, in this embodiment, the additional protective layer for protecting the first test pad 163 is unnecessary. By eliminating the need for additional processes to form the protective layer, the manufacturing process can be simplified, and the manufacturing cost caused by removing the protective layer can be reduced. Furthermore, in this embodiment, since the first test pad 163 or the protective layer protecting the first test pad 163 does not need to be exposed to the outside, design improvements can be achieved, and thus design freedom can be ensured.

[0503] In addition, although Figure 28a Only the arrangement of the first test pad 163 and the first coil unit 141b in the first substrate region 160a is shown. However, similarly, the second test pad 164 and the second coil unit 142b can be disposed in the second substrate region 160b.

[0504] At the same time, refer to Figure 28b and Figure 28c A connecting line 160-2 is formed on the insulating layer 160-1 of the first substrate 160. The connecting line 160-2 can connect the first Hall sensor 71 to the first test pad 163. In addition, the connecting line 160-2 can connect the first Hall sensor 71 to the driver IC 161.

[0505] In this configuration, the first Hall sensor 71 includes a first-first Hall sensor 71a and a first-second Hall sensor 71b. Furthermore, each of the Hall sensors 71a and 71b includes multiple terminals.

[0506] That is, the first-first Hall sensor 71a includes an input terminal and an output terminal. Typically, the input terminal of the first-first Hall sensor 71a is only one terminal connected to the driver IC 161.

[0507] In contrast, the input terminals of the first-first Hall sensor 71a in this embodiment may include a first-first input terminal (not shown) and a first-second input terminal (not shown). Additionally, the output terminals of the first-first Hall sensor 71a in this embodiment may include a first-first output terminal (not shown) and a first-second output terminal (not shown).

[0508] Additionally, the connecting line 160-2 may include a first connecting line 160-21 connecting the first-first input terminal to the first-first test pad 163-1 in the first test pad 163. Therefore, in an embodiment, the state of the input terminal of the first-first Hall sensor 71a can be tested via the first-first test pad 163-1.

[0509] Additionally, the connection line 160-2 may include a third connection line 160-23 connecting the first and second input terminals to the driver IC 161. Therefore, the driver IC 161 can input signals to the first Hall sensor 71a via the third connection line 160-23.

[0510] Additionally, the connecting line 160-2 may include a second connecting line 160-22 connecting the first-first output terminal to the first-second test pad 163-2 in the first test pad 163. Therefore, in an embodiment, the state of the output terminal of the first-first Hall sensor 71a can be tested via the first-second test pad 163-2.

[0511] Additionally, the connection line 160-2 may include a fourth connection line 160-24 connecting the first and second output terminals to the driver IC 161. Therefore, the driver IC 161 can receive signals output from the first Hall sensor 71a via the fourth connection line 160-24.

[0512] Additionally, the first-second Hall sensor 71b includes an input terminal and an output terminal. In an embodiment, the input terminal of the first-second Hall sensor 71b may include a second-first input terminal (not shown) and a second-second input terminal (not shown). Furthermore, in an embodiment, the output terminal of the first-second Hall sensor 71b may include a second-first output terminal (not shown) and a second-second output terminal (not shown).

[0513] Additionally, the connecting line 160-2 may include a fifth connecting line 160 connecting the second-first input terminal to the first-third test pad 163-3 in the first test pad 163. Therefore, in this embodiment, the state of the input terminals of the first-second Hall sensor 71b can be tested via the first-third test pad 163-3. In this case, the first-first test pad 163-1 and the first-third test pad 163-3 can be arranged diagonally, with the first Hall sensor 71 positioned between the first-first test pad 163-1 and the first-third test pad 163-3. Therefore, in this embodiment, mutual interference between the plurality of first Hall sensors 71 can be minimized.

[0514] Additionally, the connection line 160-2 may include a seventh connection line 160-27 connecting the second-second input terminal to the driver IC 161. Therefore, the driver IC 161 can input signals to the first-second Hall sensor 71b via the seventh connection line 160-27.

[0515] Additionally, the connecting line 160-2 may include a sixth connecting line 160-26 connecting the second-first output terminal to the first-fourth test pad 163-4 in the first test pad 163. Therefore, in an embodiment, the state of the output terminals of the first-second Hall sensor 71b can be tested via the first-fourth test pad 163-4.

[0516] Additionally, connection line 160-2 may include an eighth connection line 160-28 connecting the second-second output terminal to driver IC 161. Therefore, driver IC 161 can receive signals output from the first-second Hall sensor 71b via the eighth connection line 160-28. Furthermore, as in... Figure 28c As shown, in an embodiment, the first coil unit 141b is disposed on the first test pad 163, such that the first coil unit 141b can protect the exposed surface of the first test pad 163.

[0517] Figure 29a This is a perspective view of the first substrate according to the second embodiment, viewed from the first direction, with the first coil unit removed. Figure 29b This is a perspective view of the first substrate according to the second embodiment, viewed from a second direction, with the first coil unit removed. Figure 29c This is a view showing the connection between the first substrate and the base according to the second embodiment, and Figure 29d This is a view showing the structure of the first substrate according to the second embodiment with the base bonded.

[0518] Reference Figures 29a to 29dIn the second embodiment, the first test pad and the second test pad can be disposed in an area on the first substrate 160 that does not overlap with the first coil unit 141b and the second coil unit 141b.

[0519] That is, in the first embodiment, the first test pad 163 and the second test pad 164 are disposed on the first substrate 160 in the region that overlaps with the first coil unit 141b and the second coil unit 142b.

[0520] In contrast, in the second embodiment, the first test pad 163a and the second test pad 164a can be configured to be spaced apart from the first coil unit 141b and the second coil unit 142b on the optical axis.

[0521] The first test pad 163a includes first-first test pads to first-fourth test pads 163-1a, 163-2a, 163-3a, and 163-4a. Two of the first-first test pads to first-fourth test pads 163-1a, 163-2a, 163-3a, and 163-4a are connected to the first-first Hall sensor 71a, and the other two are connected to the first-second Hall sensor 71b.

[0522] The second test pad 164a includes second-first test pads to second-fourth test pads 164-1a, 164-2a, 164-3a, and 164-4a. Two of the second-first test pads to second-fourth test pads 164-1a, 164-2a, 164-3a, and 164-4a are connected to the second-first Hall sensor 72a, and the other two are connected to the second-second Hall sensor 72b.

[0523] In this second embodiment, the separate protective layer can be disposed on the first test pad 163a and the second test pad 164a.

[0524] However, in the implementation, the base 20 is used to protect the exposed surfaces of the first test pad 163a and the second test pad 164a.

[0525] That is, such as Figure 29c and Figure 29d As shown, the first and second sidewalls of the base 20 are disposed on the exposed surfaces of the first test pad 163a and the second test pad 164a. Furthermore, the first and second sidewalls are configured to cover the exposed surfaces of the first test pad 163a and the second test pad 164a (preferably, to cover the openings 160-5 of the first protective layer 160-3 and the second protective layer 160-4). Therefore, the outer portions of the first and second sidewalls of the base 20 can be configured to contact the second protective layer 160-4 and cover the openings 160-5.

[0526] Therefore, even in the second embodiment, the separate protective layer that fills the opening 160-5 is unnecessary.

[0527] In other words, in the first embodiment, the opening 160-5 is covered by the first coil unit 141b and the second coil unit 142b, and in the second embodiment, the opening 160-5 is covered by the two sidewalls of the base 20.

[0528] Meanwhile, as described above, the first Hall sensor 71 and the second Hall sensor 72 are disposed inside the windings of the first coil unit 141b and the second coil unit 142b, and the interior of the windings can be a hollow portion of the coil. The first Hall sensor 71 and the second Hall sensor 72 can obtain the position information of the lens assembly by sensing the change in the magnetic flux of the magnet disposed in the lens assembly.

[0529] Incidentally, when the first Hall sensor 71 and the second Hall sensor 72 are located inside the first coil unit 141b and the second coil unit 142b, the distance between the Hall sensor and the magnet is determined by the height of the first coil unit 141b and the second coil unit 142b.

[0530] Typically, the movement of a lens assembly requires thrust, and to ensure this thrust, the height of the coil needs to be greater than a predetermined height.

[0531] However, as the coil height increases, the distance between the Hall sensor and the magnet also increases. This presents a technical contradiction: by blocking the magnetic flux of the magnet, the sensitivity of the magnetic flux detected by the Hall sensor located inside the coil is reduced. Conversely, when the coil height decreases, the electromagnetic force between the magnet and the coil weakens, resulting in a reduction in the thrust used to drive AF or zoom.

[0532] In addition, a decrease in thrust or a decrease in the sensitivity of the Hall sensor can cause problems with the accuracy of camera control, and can also cause the camera module to become eccentric or tilted, which may directly affect the safety or lives of users, drivers or pedestrians.

[0533] Therefore, the implementation aims to provide a camera actuator that can increase thrust and also increase the sensitivity of the Hall sensor, and to provide a camera module including the camera actuator.

[0534] Figure 30a This is a perspective view of a first substrate according to a third embodiment, which is provided with coil units. Figure 30b This is a perspective view of a first substrate according to a third embodiment, from which the coil units have been removed, and Figure 30cThis is a cross-sectional view of the first substrate according to the third embodiment.

[0535] Prior to these descriptions, in embodiments, the first lens assembly 110 may include a first driving unit 116 and a third driving unit 141, and the second lens assembly 120 may include a second driving unit 126 and a fourth driving unit 142.

[0536] The first driving unit 116 and the second driving unit 126 may be, but are not limited to, magnet driving units, and the third driving unit 141 and the fourth driving unit 142 may be, but are not limited to, coil driving units.

[0537] In the first lens assembly 110 of the camera actuator according to the embodiment, the first drive unit 116 may include a first magnet 116b and a first yoke 116a, and the third drive unit 141 may include a first coil unit 141b and a third yoke 141a.

[0538] Additionally, in the second lens assembly 120 of the camera actuator according to the embodiment, the second drive unit 126 may include a second magnet 126b and a second yoke 126a, and the fourth drive unit 142 may include a second coil unit 142b and a fourth yoke 142a.

[0539] Reference Figures 30a to 30c A mounting recess 160-6 is formed in each region of the first substrate 160 where the first coil unit 141b and the second coil unit 142b are disposed. Furthermore, in this embodiment, the first coil unit 141b and the second coil unit 142b are disposed in the mounting recess 160-6.

[0540] Therefore, in this embodiment, the positions of the first coil unit 141b and the second coil unit 142b can be configured to be far from the magnet at the depth of the mounting recess 160-6. Additionally, in this embodiment, the first magnet 116b facing the first coil unit 141b can be configured to be closer to the first Hall sensor 71 at the depth of the mounting recess 160-6.

[0541] In other words, the first coil unit 141b and the first magnet 116b should be spaced apart from each other by a certain distance. In the embodiment, a mounting recess 160-6 is formed on the first substrate 160, and the first coil unit 141b is disposed in the mounting recess 160-6. Therefore, the first magnet 116b can be positioned close to the first Hall sensor 71 at the depth of the mounting recess 160-6. In other words, in the embodiment, compared to the comparative example, the distance between the first Hall sensor 71 and the first magnet 116b can be closer at the depth of the mounting recess 160-6.

[0542] Additionally, in one embodiment, the second magnet 126b facing the second coil unit 142b can be configured to approach the second Hall sensor 72 at the depth of the mounting recess 160-6.

[0543] In other words, the second coil unit 142b and the second magnet 126b should be spaced apart from each other by a certain distance. In the embodiment, a mounting recess 160-6 is formed on the first substrate 160, and the second coil unit 142b is disposed in the mounting recess 160-6. Therefore, the second magnet 126b can be positioned close to the second Hall sensor 72 at the depth of the mounting recess 160-6. In other words, in the embodiment, compared to the comparative example, the distance between the second Hall sensor 72 and the second magnet 126b can be closer at the depth of the mounting recess 160-6.

[0544] In this case, the mounting recess 160-6 can be the area on the first substrate 160 where the second protective layer 160-4 has been removed.

[0545] In other words, in the first embodiment, the first coil unit 141b and the second coil unit 142b are disposed on the second protective layer 160-4.

[0546] In contrast, in the second embodiment, the first coil unit 141b and the second coil unit 142b may be disposed on the first protective layer 160-3.

[0547] That is, the second protective layer 160-4 is not configured to cover the entire surface of the first protective layer 160-3. Instead, the second protective layer 160-4 may include an open area (corresponding to the mounting recess) that exposes the areas where the first coil unit 141b and the second coil unit 142b are located. Furthermore, the first coil unit 141b and the second coil unit 142b may be disposed within the open area of ​​the second protective layer 160-4.

[0548] Figure 31 This is a view comparing the separation distance between the Hall sensor and the magnet in the implementation and comparative examples.

[0549] exist Figure 31 In the figures, (a) shows the arrangement of the drive unit in the comparative example, and (b) shows the arrangement of the drive unit in the embodiment.

[0550] Reference Figure 31In (a) of the comparative example, the first coil unit 160-42 and the Hall sensor 160-43 are disposed on the first substrate 160-41. Additionally, the first magnet 160-44 is disposed at a distance 'a' from the first coil unit 160-42. In this case, the first coil unit 160-42 and the first magnet 160-44 can be spaced apart from each other by a first distance DH1.

[0551] Reference Figure 31 In embodiment (b), the first coil unit 141b and the first Hall sensor 71 are disposed on the first substrate 160. In this case, the first substrate 160 includes a mounting recess 160-6. Additionally, the first coil unit 141b may be disposed within the mounting recess 160-6. Furthermore, in this embodiment, the first magnet 116b is disposed at a distance 'a' from the first coil unit 141b. In this case, in this embodiment, the first Hall sensor 71 and the first magnet 116b may be spaced apart by a second distance DH2, which is less than the first distance DH1.

[0552] In other words, when the separation distance between the first coil unit and the first magnet is equal in the implementation and comparative examples, the distance between the first Hall sensor 71 and the first magnet 116b can be reduced by decreasing the depth of the mounting recess 160-6 in the implementation compared to the comparative example. Therefore, in the implementation, as the distance between the first Hall sensor 71 and the first magnet 116b decreases, the position measurement sensitivity of the Hall sensor can be improved, and thus reliability can be improved. In other words, when the depth of the mounting recess 160-6 is 'b', the first distance DH1 can be 'b' larger than the second distance DH2.

[0553] Figure 32 It is magnetic flux data of the separation distance between the magnet and the Hall sensor according to the implementation method and comparative examples.

[0554] Reference Figure 32 In one embodiment, the distance between the first magnet and the first Hall sensor can reduce the depth of the mounting recess 160-6.

[0555] For example, in an implementation, the second distance DH2 is 400 μm or less, and thus it can be ensured that the second distance DH2 is two times or more shorter than the distance in the comparative example. Therefore, compared to the comparative example, there is the following unique technical effect: ensuring that the magnetic flux between the first magnet 116b and the first Hall sensor 71 reaches about 150 (mT), which is about three times higher than the magnetic flux in the comparative example.

[0556] Therefore, the camera actuator according to the embodiment and the camera module including the camera actuator have unique technical effects of increasing thrust and also increasing the sensitivity of the Hall sensor.

[0557] Next, the embodiments aim to provide a camera actuator capable of preventing magnetic field interference between magnets mounted on the respective lens assemblies when multiple lens assemblies are driven by electromagnetic force between magnets and coils to achieve AF or zoom, and to provide a camera module including the camera actuator.

[0558] Furthermore, the embodiments aim to provide a camera actuator capable of preventing the magnet and yoke from detaching, and to provide a camera module including the camera actuator.

[0559] Figure 33 This is a perspective view of the first drive unit 116 in the camera actuator according to the embodiment.

[0560] Reference Figure 33 In one embodiment, the first drive unit 116 may include a first magnet 116b and a first yoke 116a, and the first yoke 116a may include a first support portion 116a1 and a first side protrusion 116a2 extending from the first support portion 116a1 toward the side surface of the first magnet 116b.

[0561] The first side protrusion 116a2 can be provided on both side surfaces of the first magnet 116b.

[0562] Additionally, the first magnetic yoke 116a may include a first fixed protrusion 116a3 extending in a direction different from, for example, in the opposite direction to, the direction of the first side protrusion 116a2.

[0563] The first fixed protrusion 116a3 may be located at the middle position of the first support portion 116a1, but this is not limiting.

[0564] Similarly, in an embodiment, the second drive unit 126 may include a second magnet 126b and a second yoke 126a, and the second yoke 126a may include a second support portion (not shown) and a second side protrusion extending from the second support portion toward the side surface of the second magnet 126b.

[0565] The second side protrusion may be provided on both side surfaces of the second magnet 126b. Additionally, the second yoke 126a may include a second fixing protrusion (not shown) extending in a direction different from, for example, the opposite direction to, the direction of the second side protrusion. The second fixing protrusion may be located at the middle position of the second support portion, but this is not limiting.

[0566] Typically, when achieving autofocus (AF) or zoom, multiple lens assemblies are driven by electromagnetic forces between magnets and coils, and there is a problem of magnetic field interference between the magnets mounted on the various lens assemblies. This magnetic field interference can lead to incorrect AF or zoom operation and reduced thrust.

[0567] In addition, there is a problem of eccentricity or tilting caused by magnetic field interference between magnets.

[0568] If such magnetic field interference causes problems with the accuracy of camera control, reduced thrust, eccentricity, or tilting, then the interference may be directly related to the safety or lives of users, drivers, or pedestrians.

[0569] <First Camera Actuator 300>

[0570] The second camera actuator according to the embodiment will be described later.

[0571] Figure 34a This is a perspective view of the second camera actuator of the camera module according to the embodiment, and Figure 34b This is an exploded perspective view of the second camera actuator according to the embodiment.

[0572] Reference Figure 34a and Figure 34b According to an embodiment, the first camera actuator 300 may include a housing 310, an image shake control unit 320 disposed on the housing 310, and a mover 330 disposed on the image shake control unit 320. The image shake control unit 320 may correspond to the aforementioned first drive unit ( Figure 5 (1150 in the middle).

[0573] Additionally, the first camera actuator 300 may also include a cover member 301. The cover member 301 may have a receiving space within the cover member 301, and at least one side surface of the cover member 301 may be open. For example, the cover member 301 may have a structure in which multiple side surfaces connected to each other are open. Specifically, the cover member 301 may have a structure in which the front surface through which light is incident from the outside, the lower surface corresponding to the second camera actuator 100, and the rear surface opposite the front surface are open, and the cover member 301 can provide an optical propagation path for the mover 330, which will be described later. Furthermore, for those described above... Figures 1 to 18 The same terminology used in the first camera actuator can be applied in the same way as described above.

[0574] The cover member 301 may include a rigid material. For example, the cover member 301 may include a material such as resin or metal, and may support the housing 310 disposed in the receiving space. For example, the cover member 301 may be configured to surround and support the housing 310, the image jitter control unit 320, and the mover 330.

[0575] In detail, the mover 330, which will be described later, can be moved along a first direction and / or a second direction via the image shake control unit 320. In this case, the cover member 301 can fix the housing and the image shake control unit 320 to a set position, thereby providing a more accurate light propagation path. In addition, the cover member 301 can prevent the housing 310 from detaching from the outside of the first camera actuator 300 by the elastic force of the elastic member 350. Depending on the arrangement of the housing 310, the image shake control unit 320, and the mover 330, the cover member 301 can be omitted.

[0576] Figures 35 to 38 are perspective views of the various components of the second camera actuator.

[0577] Referring to Figures 35 to 38, the first camera actuator 300 may include a housing 310, an image jitter control unit 320, a mover 330, a tilt guide portion 350, and a traction magnet 360. Specifically, the image jitter control unit 320 may include a driver circuit board 321, multiple coil units 323, and multiple magnets 325, and the mover 330 may include an optical component 331 and a retainer 333. The mover 330 may correspond to the mover described above.

[0578] According to the embodiments, by placing the image jitter control unit 320 on the housing 310, there is a technical effect that it is possible to provide an ultra-thin and ultra-small camera actuator and a camera module including the camera actuator.

[0579] Furthermore, according to the embodiment, by placing the image jitter control unit 320 below the mover 330, the following technical effect is achieved: sufficient light is ensured when realizing OIS by eliminating the size limitation of the lens in the lens assembly of the optical system.

[0580] Furthermore, according to the embodiment, by including an image jitter control unit 320 stably disposed on the housing 310 and tilting the control mover 330 on the first or second axis, there is a technical effect of minimizing the occurrence of eccentricity or tilt during OIS implementation and providing optimal optical characteristics.

[0581] Furthermore, according to the embodiment, unlike the usual method of moving multiple solid lenses, OIS is achieved by including an image jitter control unit 320 and tilting the mover 330 relative to the first axis or the second axis, which has the technical effect of achieving OIS with low power consumption.

[0582] In the following sections, each component of the first camera actuator 300 will be described in detail with reference to Figures 35 to 38.

[0583] <Image jitter control unit>

[0584] Figure 35a This is a stereoscopic view of the image shake control unit 320 of the first camera actuator 300, and... Figure 35b This is an exploded stereoscopic view of the image jitter control unit 320 of the first camera actuator 300.

[0585] Reference Figure 35a and Figure 35b The image jitter control unit 320 may include a driver circuit board 321, a coil unit 323, and a magnet 325.

[0586] The driver circuit board 321 can be connected to a predetermined power supply unit (not shown) and apply power to the coil unit 323. The driver circuit board 321 may include a circuit board with an electrically connectable wiring pattern, such as a rigid printed circuit board (rigid PCB), a flexible printed circuit board (flexible PCB), and a rigid-flexible printed circuit board (rigid-flexible PCB).

[0587] Coil unit 323 can be electrically connected to driver circuit board 321. Coil unit 323 may include one or more coil units. For example, coil unit 323 may include first coil unit 323a, second coil unit 323b, and third coil unit 323c. Coil unit 323 may correspond to the first to third coils described above.

[0588] The first to third coil units 323a, 323b, and 323c can be spaced apart from each other. For example, the driver circuit board 321 can have The first coil unit 323a and the second coil unit 323b can be disposed on opposite first and second surfaces of the driver circuit board 321, respectively. Additionally, the third coil unit 323c can be disposed on a third surface connecting the first and second surfaces of the driver circuit board 321.

[0589] Magnet 325 may include one or more magnets. For example, magnet 325 may include a first magnet 325a, a second magnet 325b, and a third magnet 325c disposed in the region corresponding to coil unit 323. Specifically, the first magnet 325a may be disposed in the region corresponding to the first coil unit 323a on the first surface. The second magnet 325b may be disposed in the region corresponding to the second coil unit 323b on the second surface. The third magnet 325c may be disposed in the region corresponding to the third coil unit 323c on the third surface. Furthermore, magnet 325 may correspond to the first to third magnets described above.

[0590] The image jitter control unit 320 may also include Hall sensors HS1 and HS2. For example, Hall sensors HS1 and HS2 may include a first Hall sensor HS1 configured to be adjacent to a coil unit selected from the first coil unit 323a and the second coil unit 323b, and a second Hall sensor HS2 configured to be adjacent to the third coil unit 323c.

[0591] Additionally, the driver circuit board 321 may include some of the components included in the first board 160 described in the first actuator. Furthermore, the driver circuit board 321 may correspond to the first substrate unit described above.

[0592] That is, the driver circuit board 321 may have mounting recesses formed in the areas where the first coil unit 323a, the second coil unit 323b, and the third coil unit 323c are disposed. The mounting recesses may be open areas of the cover layer. In addition, test pads (not shown) for testing Hall sensors HS1 and HS2 may be formed in the areas where the first coil unit 323a, the second coil unit 323b, and the third coil unit 323c are disposed.

[0593] That is, the embodiment is characterized in that a test pad for testing the Hall sensor is included in the area where the coil unit is provided, and the cover layer is left open. The test pad and the open area of ​​the cover layer can be formed on the first substrate 160 and the driver circuit board 321.

[0594] <Shell>

[0595] Figure 36a This is a perspective view of the housing 310 of the first camera actuator 300, and... Figure 36b Is with Figure 36a A perspective view of the second inclined guide portion 352, which is attached to the shell.

[0596] Reference Figure 36a and Figure 36bThe housing 310 may have a receiving space to receive the mover 330. The housing 310 may have multiple inner surfaces. For example, the housing 310 may have a first inner surface 310S1 corresponding to a first surface of the driver circuit board 321, a second inner surface 310S2 corresponding to a second surface of the driver circuit board 321, and a third inner surface 310S3 corresponding to a third surface of the driver circuit board 321.

[0597] In detail, the housing 310 may have a first inner surface 310S1 corresponding to the first coil unit 323a, a second inner surface 310S2 corresponding to the second coil unit 323b, and a third inner surface 310S3 corresponding to the third coil unit 323c.

[0598] Additionally, the housing 310 may have a fourth inner surface 310S4 that is connected to the first inner surface 310S1 and the second inner surface 310S2 and is also connected to the third inner surface 310S3.

[0599] The housing 310 may have multiple housing holes 311H. Each housing hole 311H may be a through hole penetrating both the outer and inner surfaces of the housing 310. The multiple housing holes 311H may include first housing holes to third housing holes 311H1, 311H2, and 311H3. The first housing hole 311H1 may be a through hole penetrating the first inner surface 310S1 and the outer surface corresponding to the first inner surface 310S1. The second housing hole 311H2 may be a through hole penetrating the second inner surface 310S2 and the outer surface corresponding to the second inner surface 310S2. The third housing hole 311H3 may be a through hole penetrating the third inner surface 310S3 and the outer surface corresponding to the third inner surface 310S3.

[0600] The first housing hole 311H1 can be provided in the region corresponding to the first coil unit 323a. Furthermore, the first housing hole 311H1 can have a size and shape corresponding to the size and shape of the first coil unit 323a. Therefore, the first coil unit 323a can be partially or completely inserted and disposed in the first housing hole 311H1.

[0601] The second housing hole 311H2 can be provided in the region corresponding to the second coil unit 323b. Furthermore, the second housing hole 311H2 can have dimensions and shape corresponding to the dimensions and shape of the second coil unit 323b. Therefore, the second coil unit 323b can be partially or completely inserted and disposed in the second housing hole 311H2.

[0602] The third housing hole 311H3 can be provided in the region corresponding to the third coil unit 323c. Furthermore, the third housing hole 311H3 can have dimensions and shape corresponding to the dimensions and shape of the third coil unit 323c. Therefore, the third coil unit 323c can be partially or completely inserted and provided in the third housing hole 311H3.

[0603] The housing 310 may have at least one recess 313R. For example, the recess 313R may be provided on at least one inner surface of the housing 310. More specifically, the recess 313R may be provided on a fourth inner surface 310S4 of the housing 310. The recess may have a concave shape on the fourth inner surface 310S4 toward the outer surface of the housing 310 (along the z-axis direction).

[0604] The recess 313R of the housing 310 can provide space for providing the tilting guide member 350. Preferably, the recess 313R can provide space for providing a second tilting guide portion 352 of the tilting guide portion 350. For this purpose, an adhesive member (not shown) can be provided in the recess 313R. In addition, the second tilting guide portion 352 can be provided in the recess 313R of the housing 310 and fixed to the recess 313R of the housing 310 by the adhesive member.

[0605] <Movement>

[0606] Figures 37a to 37c This is a view of the actuator 330 of the first camera actuator 300.

[0607] Reference Figures 37a to 37c The mover 330 can be disposed within the housing 310. Specifically, the mover 330 can be disposed within the receiving space of the housing 310.

[0608] The mover 330 may include an optical component 331 and a retainer 333 disposed on the optical component 331.

[0609] Optical component 331 can be a right-angle prism. Optical component 331 can reflect the direction of light incident from the outside. That is, optical component 331 can change the path of light incident from the outside onto the first camera actuator 300 toward the second camera actuator 100.

[0610] A retainer 333 may be disposed on the optical member 331. The retainer 333 may be configured to surround the optical member 331. The retainer 333 may have at least one open side surface and a receiving space within it. Specifically, the retainer 333 may have a structure in which a plurality of outer surfaces connected to each other are open. For example, the retainer 333 may have a structure in which the outer surface corresponding to the optical member 331 is open, and the retainer 333 may have a receiving space defined as a first space 335 within it.

[0611] The retainer 333 may have an inner surface 335S. The inner surface 335S may be an inner surface forming the first space 335. The first space 335 may have a shape corresponding to the shape of the optical component 331. In the first space 335, the inner surface 335S may be in direct contact with the optical component 331.

[0612] The retainer 333 may include a stepped portion 326. The stepped portion 326 may be disposed within the first space 335. The stepped portion 326 may perform the function of guiding and / or placing the optical member 331. Specifically, a protrusion corresponding to the stepped portion 326 may be formed on the exterior of the optical member 331. The optical member 331 may be disposed in the first space 335 such that the protrusion is guided to the stepped portion 326 of the retainer 333. Therefore, the retainer 333 can effectively support the optical member 331. Furthermore, the optical member 331 can be positioned at a predetermined location and can have improved alignment characteristics within the retainer 333.

[0613] The mover 330 may have multiple outer surfaces. For example, the retainer 333 of the mover 330 may have multiple outer surfaces. The retainer 333 may have a first outer surface 330S1 corresponding to a first inner surface 310S1 of the housing 310, a second outer surface 330S2 corresponding to a second inner surface 310S2, a third outer surface 330S3 corresponding to a third inner surface 310S3, and a fourth outer surface 330S4 corresponding to a fourth inner surface 310S4.

[0614] The retainer 333 may have at least one recess. For example, the recess may be provided on at least one outer surface of the retainer 333. More specifically, the recess may be provided on a fourth outer surface 330S4 of the retainer 333. The recess may have a concave shape on the fourth outer surface 330S4 toward the first space 335 (along the z-axis direction).

[0615] Multiple recesses 338R and 319R may be provided with the retainer 333. Recesses 338R and 319R may include a third recess 338R and a fourth recess 319R.

[0616] The third recess 338R can be disposed in the central region of the fourth outer surface 330S4. Specifically, the third recess 338R can overlap with the center of the fourth outer surface 330S4 in the z-axis direction. The third recess 338R can be configured to face the recess 313R of the housing 310. Preferably, the third recess 338R can be disposed in a region that overlaps with the center of the recess 313R of the housing 310 in the z-axis direction. The third recess 338R can provide space for the traction magnet 360. Preferably, the traction magnet 360 can be inserted into the third recess 338R. In this case, an adhesive member (not shown) can be applied to the third recess 338R. Alternatively, the traction magnet 360 can be fixed to and disposed in the third recess 338R by the adhesive member.

[0617] Multiple fourth recesses 319R can be provided on the fourth outer surface 330S4. The fourth recesses 319R can have the same or different dimensions as the third recesses 338R. The multiple fourth recesses 319R can be positioned adjacent to the third recesses 338R and selectively spaced apart from them. That is, some of the fourth recesses 319R can be spaced apart from the third recesses 338R. Other fourth recesses 319R can be connected to the third recesses 338R. In this case, the depth of the third recesses 338R can be different from the depth of the fourth recesses 319R. Furthermore, the multiple fourth recesses 319R can have different depths.

[0618] The fourth recess 319R can be disposed around the third recess 338R. That is, the fourth recess 319R can be disposed around the third recess 338R with the third recess 338R as the center.

[0619] For example, a plurality of fourth recesses 319R may include a first secondary fourth recess 319R1 and a second secondary fourth recess 319R2 that are spaced apart from the third recess 338R in the first direction (x-axis direction). Additionally, a plurality of fourth recesses 319R may include a third secondary fourth recess 319R3 and a fourth secondary fourth recess 319R4 that are spaced apart from or connected to the third recess 338R in the second direction (y-axis direction).

[0620] The fourth recess 319R can provide space for the first inclined guide portion 351 of the inclined guide portion 350 to be inserted. Preferably, a plurality of protrusions of the first inclined guide portion 351 (described later) can be inserted into the fourth recess 319R.

[0621] That is, the fourth recess 319R can be formed to correspond to the position of the plurality of protrusions provided on the first inclined guide portion 351, thereby providing space for the plurality of protrusions of the first inclined guide portion 351.

[0622] In this case, the depths of the fourth recesses 319R can be different from each other. Preferably, the first secondary fourth recesses 319R1 and the second secondary fourth recesses 319R2 can have the same depth. That is, the first secondary fourth recesses 319R1 and the second secondary fourth recesses 319R2 can have a depth corresponding to the height of the plurality of first protrusions (described later) of the first inclined guide portion 351.

[0623] The third-fourth recess 319R3 and the fourth-fourth recess 319R4 may have the same depth as each other. Preferably, the third-fourth recess 319R3 and the fourth-fourth recess 319R4 may have a depth corresponding to the height of the plurality of second protrusions (described later) of the first inclined guide portion 351.

[0624] Simultaneously, the depths of the first and second fourth recesses 319R1 and 319R2 into which the first protrusion is inserted can differ from the depths of the third and fourth recesses 319R3 and 319R4 into which the second protrusion is inserted. In this case, the height of the first protrusion of the first inclined guide portion 351 can be greater than the height of the second protrusion. Therefore, the depths of the first and second fourth recesses 319R1 and 319R2 can be greater than the depths of the third and fourth recesses 319R3 and 319R4.

[0625] The retainer 333 may also have multiple recesses. These recesses may have a concave shape on the outer surface of the retainer 333 facing the first space 335. The multiple recesses may include a first recess 337R1, a second recess 337R2, and a third recess 337R3. For example, the first recess 337R1 may be provided on the first outer surface 330S1. The first recess 337R1 may be provided in the region corresponding to the first housing hole 311H1. Additionally, the second recess 337R2 may be provided on the second outer surface 330S2. The second recess 337R2 may be provided in the region corresponding to the second housing hole 311H2. Additionally, the third recess 337R3 may be provided on the third outer surface 330S3. The third recess 337R3 may be provided in the region corresponding to the third housing hole 311H3. That is, the first housing hole 311H1 may correspond to the first coil unit 323a, and the second housing hole 311H2 may correspond to the second coil unit 323b. In addition, the third housing hole 311H3 can correspond to the third coil unit 323c.

[0626] Magnet 325 can be disposed in the first to third recesses 337R1, 337R2, and 337R3. For example, a first magnet 325a can be disposed in the first recess 337R1, a second magnet 325b can be disposed in the second recess 337R2, and a third magnet 325c can be disposed in the third recess 337R3. Furthermore, the first magnet 325a, the second magnet 325b, and the third magnet 325c can be spaced apart from each other.

[0627] <Inclined Guidance Section>

[0628] Figure 38a This is a front-view stereoscopic view of the tilt guide section of the second camera actuator, and Figure 38b This is a rear-view stereoscopic view of the tilt guide section of the second camera actuator.

[0629] Reference Figure 38a and Figure 38b The tilting guide portion 350 may include a first tilting guide portion 351 and a second tilting guide portion 352.

[0630] The first tilting guide portion 351 can provide a rotation axis for rotating or tilting the mover 330 in a second direction (e.g., the up-down direction or the y-axis direction). Additionally, the second tilting guide portion 352 can provide a rotation axis for rotating or tilting the mover 330 in a first direction (e.g., the left-right direction or the x-axis direction).

[0631] As described above, in this embodiment, the rotation of the mover 330 in the first direction is performed by the second tilting guide portion 352, and the rotation in the second direction is performed by the first tilting guide portion 351. That is, in the camera actuator, different plates are respectively responsible for the rotation axis for rotating the mover 330 in the first direction and the rotation axis for rotating in the second direction. Therefore, in this embodiment, because the rotation axes are formed by different moving plates when the mover 330 rotates on the two axes, more stable rotation can be achieved, rotational accuracy can be increased, and thus the stability of the rotation drive can be ensured.

[0632] In this case, the tilting guide portion 350 can be disposed between the housing 310 and the mover 330.

[0633] The first tilting guide portion 351 and the second tilting guide portion 352 constituting the tilting guide portion 350 may have the same shape and size as each other. That is, the first tilting guide portion 351 and the second tilting guide portion 352 may be identical to each other. Therefore, in the embodiment, the two tilting guide portions 350 can be manufactured identically in one device, and thus the ease of manufacturing can be ensured.

[0634] However, the first tilting guide portion 351 and the second tilting guide portion 352 constituting the tilting guide portion 350 can be arranged in different directions between the housing 310 and the mover 330.

[0635] That is, one of the first tilting guide portion 351 and the second tilting guide portion 352 can be rotated 90 degrees relative to the other tilting guide portion.

[0636] The first tilting guide portion 351 and the second tilting guide portion 352 can be combined with each other.

[0637] That is, the second inclined guide portion 352 is coupled to the housing 310. Additionally, when the mover 330 is disposed on the second inclined guide portion 352, the first inclined guide portion 351 can be coupled to the second inclined guide portion 352. Here, coupling means that the first inclined guide portion 351 is not fixedly coupled to the second inclined guide portion 352, but rather that the first inclined guide portion 351 simply contacts the second inclined guide portion 352.

[0638] In this configuration, the first inclined guide portion 351 has multiple protrusions and multiple recesses, and the second inclined guide portion 352 also has multiple protrusions and multiple recesses. In this configuration, the multiple protrusions of the second inclined guide portion 352 can be inserted into the multiple recesses of the first inclined guide portion 351. This will be described in detail below.

[0639] The first tilting guide portion 351 and the second tilting guide portion 352 can provide a rotation axis for the movement direction of the mover 330, which is moved by an external driving force, such as by the coil unit 323 and the magnet 325.

[0640] The first inclined guide portion 351 may have a first surface 351S1.

[0641] The first-first surface 351S1 can be the surface facing the fourth outer surface 330S4 of the mover 330.

[0642] A first movable protrusion 351P1 and a first secondary protrusion 351P2 may be provided on the first-first surface 351S1 of the first inclined guide portion 351. The first movable protrusion 351P1 functions as a rotation axis for rotating the mover 330 in the second direction. The first secondary protrusion 351P2 may function as a stop to limit the rotation range of the mover 330 in the second direction.

[0643] The first movable protrusions 351P1 can be configured such that the central regions of the first-first surfaces 351S1 of the first inclined guide portion 351 are spaced apart from each other in a first direction (x-axis direction). Here, the central regions of the first-first surfaces 351S1 can be regions facing the traction magnet 360 fixedly disposed on the mover 330. Preferably, the central regions of the first-first surfaces 351S1 can be regions that overlap with the traction magnet 360 fixedly disposed on the mover 330 in the z-axis direction.

[0644] The first movable protrusions 351P1 are spaced apart from each other in the x-axis direction of the central region. That is, the first movable protrusions 351P1 may include a first-secondary movable protrusion 351Pa spaced apart from the central region in the negative x-axis direction, and a second-secondary movable protrusion 351Pb spaced apart from the central region in the positive x-axis direction.

[0645] The first-first-moving protrusion 351Pa can correspond to the first-fourth recess 319R1. That is, the first-first-moving protrusion 351Pa can be at least partially disposed within the first-fourth recess 319R1. That is, at least a portion of the first-first-moving protrusion 351Pa can be inserted into the first-fourth recess 319R1. In this case, the height of the first-first-moving protrusion 351Pa can be greater than the depth of the first-fourth recess 319R1. Therefore, only a portion of the first-first-moving protrusion 351Pa can be inserted into the first-fourth recess 319R1. Therefore, with at least a portion of the first-first-moving protrusion 351Pa inserted into the first-fourth recess 319R1, the first-first surface 351S1 of the first inclined guide portion 351 can be spaced apart from the fourth outer surface 330S4 of the retainer 333 by a predetermined distance.

[0646] The second-first moving protrusion 351Pb can correspond to the second-fourth recess 319R2. That is, the second-first moving protrusion 351Pb can be at least partially disposed within the second-fourth recess 319R2. That is, at least a portion of the second-first moving protrusion 351Pb can be inserted into the second-fourth recess 319R2. In this case, the height of the second-first moving protrusion 351Pb can be greater than the depth of the second-fourth recess 319R2. Therefore, only a portion of the second-first moving protrusion 351Pb can be inserted into the second-fourth recess 319R2. Therefore, with at least a portion of the second-first moving protrusion 351Pb inserted into the second-fourth recess 319R2, the first-first surface 351S1 of the first tilting guide portion 351 can be spaced apart from the fourth outer surface 330S4 of the retainer 333 by a predetermined distance.

[0647] Furthermore, the first first moving protrusion 351Pa and the second first moving protrusion 351Pb are arranged along the x-axis relative to the center of the first tilting guide member 351, and thus provide a rotation axis for rotating the mover 330 in the second direction. That is, using the virtual first line formed by the first first moving protrusion 351Pa and the second first moving protrusion 351Pb as a reference axis, the mover 330 can provide rotational motion in the second direction (vertical direction).

[0648] The first protrusion 351P2 can be configured such that the central regions of the first-first surfaces 351S1 of the first inclined guide portion 351 are spaced apart from each other in the second direction (y-axis direction). Here, the central region of the first-first surfaces 351S1 can be the region facing the traction magnet 360 fixedly disposed on the mover 330. Preferably, the central region of the first-first surfaces 351S1 can be the region overlapping with the traction magnet 360 fixedly disposed on the mover 330 in the z-axis direction.

[0649] The first sub-protrusions 351P2 are spaced apart from each other in the y-axis direction of the central region. That is, the first sub-protrusions 351P2 may include a first sub-protrusion 351Pc spaced apart from the central region in the positive y-axis direction, and a second sub-protrusion 351Pd spaced apart from the central region in the negative y-axis direction.

[0650] The first secondary protrusion 351Pc can correspond to the third secondary fourth recess 319R3. That is, the first secondary protrusion 351Pc can be at least partially disposed within the third secondary fourth recess 319R3. In other words, at least a portion of the first secondary protrusion 351Pc can be inserted into the third secondary fourth recess 319R3.

[0651] In this case, the height of the first secondary protrusion 351Pc can be less than the depth of the third secondary fourth recess 319R3. Therefore, the entire first secondary protrusion 351Pc can be inserted into the third secondary fourth recess 319R3. In this case, the difference between the height of the first secondary protrusion 351Pc and the depth of the third secondary fourth recess 319R3 corresponds to the range of movement of the mover. That is, the mover 330 can move upwards through the first inclined guide portion 351 by the difference between the height of the first secondary protrusion 351Pc and the depth of the third secondary fourth recess 319R3. When the range of movement is exceeded, the first secondary protrusion 351Pc can contact the bottom surface of the third secondary fourth recess 319R3 and restrict the movement of the mover 330.

[0652] The second-first protrusion 351Pd can correspond to the fourth-fourth recess 319R4. That is, the second-first protrusion 351Pd can be at least partially disposed within the fourth-fourth recess 319R4. In other words, at least a portion of the second-first protrusion 351Pd can be inserted into the fourth-fourth recess 319R4.

[0653] In this case, the height of the second-first protrusion 351Pd can be less than the depth of the fourth-fourth recess 319R4. Therefore, the entire second-first protrusion 351Pd can be inserted into the fourth-fourth recess 319R4. In this case, the difference between the height of the second-first protrusion 351Pd and the depth of the fourth-fourth recess 319R4 corresponds to the range of motion of the mover. That is, the mover 330 can move downwards through the first inclined guide portion 351 by the difference between the height of the second-first protrusion 351Pd and the depth of the fourth-fourth recess 319R4. When the range of motion is exceeded, the second-first protrusion 351Pd can contact the bottom surface of the fourth-fourth recess 319R4 and restrict the movement of the mover 330.

[0654] The second tilting guide portion 352 has the same structure as the first tilting guide portion 351. However, the second tilting guide portion 352 may be disposed in the recess 313R of the housing 310 in a direction different from that of the first tilting guide portion 351. That is, the first tilting guide portion 351 is disposed between the housing 310 and the mover 330 such that the first movable protrusion 351P1, which has a large height between the two protrusions, is arranged along the x-axis direction. In this case, the second tilting guide portion 352 includes a second movable protrusion 352P1 corresponding to the first movable protrusion 351P1 of the first tilting guide portion 351. However, the second movable protrusion 352P1 may be disposed in a direction perpendicular to the disposed direction of the first movable protrusion 351P1. That is, the second movable protrusion 352P1 may be disposed along the y-axis direction based on the center of the second tilting guide portion 352.

[0655] The second inclined guide portion 352 may have a second-first surface 352S1.

[0656] The second-first surface 352S1 may be a surface facing the first-second surface 351S2, which is the opposite surface of the first-first surface 351S1 of the first inclined guide portion 351.

[0657] The second movable protrusion 352P1 and the second auxiliary protrusion 352P2 may be disposed on the second-first surface 352S1 of the second inclined guide portion 352. The second movable protrusion 352P1 functions as a rotation axis for rotating the mover 330 in the first direction. The second auxiliary protrusion 352P2 may function as a stop to limit the rotation range of the mover 330 in the first direction.

[0658] The second movable protrusion 352P1 can be configured such that the central regions of the second-first surface 352S1 of the second inclined guide portion 352 are spaced apart from each other in the second direction (y-axis direction). Here, the central region of the second-first surface 352S1 can be the region facing the traction magnet 360 fixedly disposed on the mover 330. Preferably, the central region of the second-first surface 352S1 can be the region overlapping with the traction magnet 360 fixedly disposed on the mover 330 in the z-axis direction.

[0659] The second movable protrusions 352P1 are spaced apart from each other in the x-axis direction of the central region. That is, the second movable protrusions 352P1 may include a first second movable protrusion 352Pa spaced apart from the central region in the positive y-axis direction and a second second movable protrusion 352Pb spaced apart from the central region in the negative y-axis direction.

[0660] The first and second moving protrusions 352Pa and 352Pb can correspond to the first moving recess 351R provided on the first and second surfaces 351S2 of the first inclined guide portion 351, which will be described later. That is, the first and second moving protrusions 352Pa and 352Pb can be fitted into the first moving recess 351R provided on the first and second surfaces 351S2 of the first inclined guide portion 351. This will be described in detail later.

[0661] Furthermore, the first and second moving protrusions 352Pa and 352Pb are arranged along the y-axis relative to the center of the second inclined guide portion 352, thus providing a rotation axis for rotating the mover 330 in the first direction. That is, using the virtual second line formed by the first and second moving protrusions 352Pa and 352Pb as a reference axis, the mover 330 can provide rotational motion in the first direction (left-right direction).

[0662] The second protrusion 352P2 can be configured such that the central regions of the second-first surface 352S1 of the second inclined guide portion 352 are spaced apart from each other in a first direction (x-axis direction). Here, the central region of the second-first surface 352S1 can be a region facing the traction magnet 360 fixedly disposed on the mover 330. Preferably, the central region of the second-first surface 352S1 can be a region that overlaps with the traction magnet 360 fixedly disposed on the mover 330 in the z-axis direction.

[0663] The second protrusions 352P2 are spaced apart from each other in the x-axis direction of the central region. That is, the second protrusions 352P2 may include a first secondary second protrusion 352Pc spaced apart from the central region in the negative x-axis direction, and a second secondary second protrusion 352Pd spaced apart from the central region in the positive x-axis direction.

[0664] With the first secondary moving protrusion 352Pa and the second secondary moving protrusion 352Pb assembled into the first moving recess 351R of the first tilting guide portion 351, the first secondary secondary protrusion 352Pc and the second secondary secondary protrusion 352Pd can be spaced apart from the first and second surfaces 351S2 of the first tilting guide portion 351 by a predetermined distance. Furthermore, the separation distance can correspond to the range of motion of the mover.

[0665] That is, the mover 330 can move to the left by the second inclined guide portion 352 to move the separation distance between the first secondary protrusion 352Pc and the first secondary surface 351S2. When the movement range is exceeded, the first secondary protrusion 352Pc can contact the first secondary surface 351S2 and the bottom surface of the first inclined guide portion 351 and restrict the movement of the mover 330.

[0666] Additionally, the mover 330 can move to the right via the second inclined guide portion 352 to increase the separation distance between the second secondary protrusion 352Pd and the first secondary surface 351S2. When the movement exceeds this range, the second secondary protrusion 352Pd can contact the first secondary surface 351S2 and the bottom surface of the first inclined guide portion 351, thus restricting the movement of the mover 330.

[0667] Meanwhile, the first tilting guide portion 351 may have a first-second surface 351S2. The first-second surface 351S2 may be a surface facing the second-first surface 352S1 of the second tilting guide portion 352.

[0668] In addition, the first movable recess 351R may be provided on the first and second surfaces 351S2 of the first inclined guide portion 351.

[0669] The first movable recess 351R can be arranged along the y-axis direction based on the center of the first-second surface 351S2 of the first inclined guide portion 351, thus providing space for engagement with the second inclined guide portion 352. That is, the first movable recess 351R can correspond to the second movable protrusion 352P1 of the second inclined guide portion 352. Specifically, the first movable recess 351R can include a first-second movable recess 351R1 corresponding to the first-second secondary protrusion 352Pc of the second movable protrusion 352P1, and a second-first movable recess 351R2 corresponding to the second-second secondary protrusion 352Pd of the second inclined guide portion 352.

[0670] Therefore, the first secondary auxiliary protrusion 352Pc of the second movable protrusion 352P1 can be at least partially inserted into the first primary movable recess 351R1, and the second secondary auxiliary protrusion 352Pd of the second inclined guide portion 352 can be at least partially inserted into the second primary movable recess 351R2.

[0671] Meanwhile, the second inclined guide portion 352 may have a second-second surface 352S2. The second-second surface 352S2 may be a surface facing the housing 310 with a fourth inner surface 310S4 having a recess 313R.

[0672] Alternatively, the second movable recess 352R can be provided on the second-second surface 352S2 of the second tilting guide portion 352. At the same time, the second movable recess 352R of the second tilting guide portion 352 can be omitted. However, in order to manufacture the first tilting guide portion 351 and the second tilting guide portion 352 in the same process, the second movable recess 352R can be provided in the second tilting guide portion 352 as it is provided in the first tilting guide portion 351.

[0673] The second movable recess 352R can be arranged along the x-axis direction based on the center of the second-second surface 352S2 of the second inclined guide portion 352.

[0674] For example, the second movable recess 352R may include a first second movable recess 352R1 disposed at the center of the second-second surface 352S2 of the second inclined guide portion 352 along the negative x direction, and a second second movable recess 352R2 disposed at the center of the second-second surface 352S2 of the second inclined guide portion 352 along the positive x direction.

[0675] In this configuration, the second inclined guide portion 352 is fixedly disposed within the recess 313R of the housing 310. Furthermore, an adhesive member for fixing the second inclined guide portion 352 is provided within the recess 313R. In this configuration, the second movable recess 352R can improve the bonding force between the second inclined guide portion 352 and the housing 310. That is, during the process of fixing the second inclined guide portion 352 to the housing 310 using the adhesive member, the adhesive member can penetrate into the second movable recess 352R of the second inclined guide portion 352, thereby increasing the contact area with the adhesive member and improving the adhesive force.

[0676] Meanwhile, in the embodiments, the first tilting guide portion 351 and the second tilting guide portion 352 can be made of the same or different materials. In this case, the second tilting guide portion 352 can be formed of a magnetic material.

[0677] That is, the second tilting guide portion 352 is fixed to the housing 310. Additionally, the traction magnet 360 is fixed to the mover 330. Furthermore, with the protrusion of the first tilting guide portion 351 inserted into the recess of the mover 330 and the protrusion of the second tilting guide portion 352 inserted into the recess of the first tilting guide portion 351, the first tilting guide portion 351 can be positioned between the second tilting guide portion 352 and the traction magnet 360.

[0678] In this configuration, the second tilting guide portion 352 is formed of a magnetic material. Therefore, the traction magnet 360 and the second tilting guide portion 352 can attract each other. That is, an attractive force acts between the traction magnet 360 and the second tilting guide portion 352. Thus, the mover 330 can be pressed towards the housing 310 by the attractive force. In other words, the mover 330 can be supported to the housing 310 by the attractive force. Furthermore, when the mover 330 is pressed, the first tilting guide portion 351 can also be pressed together with the mover 330 and supported to the housing 310.

[0679] Here, the first inclined guide portion 351 and the second inclined guide portion 352 can be formed by a pressing method. Therefore, the first inclined guide portion 351 and the second inclined guide portion 352 can be formed from different materials. That is, unlike the second inclined guide portion 352, the first inclined guide portion 351 can be formed from a non-magnetic material. For example, the first inclined guide portion 351 can be formed from an injection-molded material or a ceramic material. However, to simplify the manufacturing process, the first inclined guide portion 351 and the second inclined guide portion 352 can be formed from a magnetic material. Furthermore, when the first inclined guide portion 351 is formed from a magnetic material, the bonding force between the first inclined guide portion 351, the second inclined guide portion 352, and the traction magnet 360 can be further improved.

[0680] On the other hand, a plurality of first movable protrusions and a plurality of first auxiliary protrusions are arranged in a cross shape based on a first region on the first-first surface 351S1 of the first inclined guide portion 351, and a plurality of second movable protrusions and a plurality of second auxiliary protrusions are arranged in a cross shape based on a second region on the second-first surface 352S1 of the second inclined guide portion 352. In this case, the first region and the second region overlap with the traction magnet in the third direction. In other words, on the first-first surface 351S1 of the first inclined guide portion 351, a plurality of first movable protrusions and a plurality of first auxiliary protrusions can be arranged in a cross shape based on the region overlapping with the traction magnet 360 in the z-axis direction. In addition, on the second-first surface 352S1 of the second inclined guide portion 352, a plurality of second movable protrusions and a plurality of second auxiliary protrusions can be arranged in a cross shape based on the region overlapping with the traction magnet 360 in the z-axis direction.

[0681] Figure 39 and Figure 40 This is a view showing the connection between the housing, the mover, and the moving protrusion 352P1 in the second camera actuator.

[0682] Reference Figure 39 and Figure 40 The tilting guide portion 350 according to the embodiment may include a first tilting guide portion 351 and a second tilting guide portion 352. In addition, the second tilting guide portion 352 can generate a force for fixing the mover 330 to the housing 310 and also provides a rotation axis for rotating the mover 330 in a first direction.

[0683] The centers of the traction magnet 360, the first inclined guide portion 351, and the second inclined guide portion 352 can overlap each other in the z-axis direction.

[0684] The first tilting guide portion 351 can be disposed between the housing 310, on which the second tilting guide portion 352 is disposed, and the mover 330, on which the traction magnet 360 is disposed.

[0685] In this case, the first moving protrusion 351P1 and the first auxiliary protrusion 351P2 of the first tilting guide portion 351 can be inserted into the fourth recess 319R of the mover 330.

[0686] The first moving protrusion 351Pa can be inserted into the first fourth recess 319R1, and the second moving protrusion 351Pb can be inserted into the second fourth recess 319R2.

[0687] In addition, the first sub-protrusion 351Pc can be inserted into the third sub-fourth recess 319R3, and the second sub-protrusion 351Pd can be inserted into the fourth sub-fourth recess 319R4.

[0688] Additionally, the second movable protrusion 352P1 of the second tilting guide portion 352 can be inserted into the first movable recess 351R of the first tilting guide portion 351.

[0689] Therefore, the attraction force acting between the second tilting guide portion 352 and the traction magnet 360 can compress the first tilting guide portion 351 together with the mover 330, thereby supporting the first tilting guide portion 351 to the housing 310.

[0690] Therefore, the first tilting guide portion 351 serves as a rotation axis for rotating the mover 330 in a second direction corresponding to the y-axis direction, and the second tilting guide portion 352 serves as a rotation axis for rotating the mover 330 in a first direction corresponding to the x-axis direction.

[0691] In this embodiment, the tilt of the mover 330 on the first or second axis is controlled by the electromagnetic force between the first to third magnets 325a, 325b, and 325c disposed on the holder 333 and the first to third coil units 323a, 323b, and 323c. This achieves the technical effect of minimizing the occurrence of eccentricity or tilt during OIS implementation and providing optimal optical characteristics.

[0692] For example, according to an embodiment, with the tilt guide portion 350 disposed between the housing 310 and the mover 330, the tilt of the mover 330 on the first axis or the second axis is controlled by the driving force of the image jitter control unit 320. This achieves the following technical effects: minimizing the occurrence of eccentricity or tilt during OIS implementation, thereby providing optimal optical characteristics, and enabling ultra-thin and ultra-compact camera actuators.

[0693] Furthermore, according to the embodiment, the mover 330 can be fixed within the housing 310 by the cover member 301 and the elastic member 350. Therefore, the separate magnet and yoke used to fix the mover 330 in the housing 310 can be omitted, making it possible to achieve a thinner camera actuator.

[0694] Figure 41a and Figure 41b This is an exemplary view illustrating the operation of a second camera actuator according to an embodiment.

[0695] Referring to FIG41, the mover 330 according to the embodiment can be controlled to tilt on the first axis or the second axis by the driving force of the image jitter control unit 320.

[0696] First, refer to Figure 41a The mover 330 can provide rotational motion in the second direction by using a first imaginary line L1 formed by the first moving protrusion 351P1 of the first inclined guide portion 351 as a reference axis. Specifically, the image jitter control unit 320 can rotate the mover 330 in the vertical direction.

[0697] For example, a repulsive force can be generated between the third-first coil unit in the third coil unit 323c adjacent to the first inclined guide portion 351 and the third-first magnet in the third magnet 325c adjacent to the first inclined guide portion 351. Conversely, an attractive force can be generated between the third-second coil unit in the third coil unit 323c away from the first inclined guide portion 351 and the third-second magnet in the third magnet 325c away from the first inclined guide portion 351.

[0698] Therefore, the mover 330 can be tilted upwards or downwards relative to the first line L1, which serves as a reference axis. That is, the mover 330 can be tilted upwards or downwards relative to the first line L1 at a predetermined angle. Therefore, the propagation path of light incident on the mover 330 can be controlled.

[0699] Additionally, refer to Figure 41b By using a second imaginary line L2 formed by the second moving protrusion 352P1 of the second tilting guide portion 352 as a reference axis, the mover 330 can provide rotational motion in the first direction. Specifically, the image jitter control unit 320 can rotate the mover 330 in the left-right direction.

[0700] For example, a repulsive force can be generated between the first-first coil unit adjacent to the second inclined guide portion 352 in the first coil unit 323a and the first-first magnet adjacent to the second inclined guide portion 352 in the first magnet 325a. Conversely, an attractive force can be generated between the first-second coil unit away from the second inclined guide portion 352 in the first coil unit 323a and the first-second magnet away from the second inclined guide portion 352 in the first magnet 325a. Similarly, an attractive force can be generated between the second-first coil unit adjacent to the second inclined guide portion 352 in the second coil unit 323b and the second-first magnet adjacent to the second inclined guide portion 352 in the second magnet 325b. Conversely, a repulsive force can be generated between the second-second coil unit away from the second inclined guide portion 352 in the second coil unit 323b and the second-second magnet away from the second inclined guide portion 352 in the second magnet 325b.

[0701] Therefore, the mover 330 can tilt to the left or right relative to the second line L2, which serves as the reference axis. That is, the mover 330 can tilt to the left or right relative to the second line L2 at a predetermined angle. Therefore, the propagation path of light incident on the mover 330 can be controlled.

[0702] Figure 42 This is an exemplary view of the integral body 315 in a camera module according to another embodiment.

[0703] In a camera module according to another embodiment, a second camera actuator 100 may be disposed in a first body region 315a of an integral body 315, and a first camera actuator 100 may be disposed in a second body region 315b.

[0704] Figure 43 This is a perspective view of a mobile terminal 1500 that uses a camera module according to an embodiment.

[0705] Reference Figure 43 According to the embodiments, the mobile terminal 1500 may include a camera module 1000, a flash module 1530 and an autofocus device 1510 disposed on the rear surface of the mobile terminal 1500.

[0706] The camera module 1000 may have image capture and autofocus functions. For example, the camera module 1000 may have an autofocus function that utilizes an image.

[0707] The camera module 1000 processes image frames of still or moving images acquired by the image sensor in shooting mode or video call mode. The processed image frames can be displayed on a predetermined display unit and stored in memory. The camera (not shown) can also be mounted on the front surface of the mobile terminal.

[0708] For example, camera module 1000 may include a first camera module 1000A and a second camera module 1000B, and OIS and AF or zoom functions can be implemented together through the first camera module 1000A.

[0709] The flash module 1530 may include a light emitting device. The flash module 1530 can operate in response to camera operation of the mobile terminal or user operation.

[0710] The autofocus device 1510 may include one of the packages of a surface-emitting laser device that serves as the light-emitting part.

[0711] The autofocus device 1510 may include an autofocus function using a laser. The autofocus device 1510 can be used primarily under conditions where the autofocus function of the image from the camera module 1000 is degraded, such as in close-range environments of 10m or less, or in dark environments. The autofocus device 1510 may include a light-emitting unit having a vertical cavity surface-emitting laser (VCSEL) semiconductor device and a light-receiving unit, such as a photodiode, that converts light energy into electrical energy.

[0712] Figure 44 This is a perspective view of a vehicle 700 equipped with a camera module according to an embodiment.

[0713] For example, Figure 44 It is an external view of a vehicle including a vehicle driving assistance device with a camera module 1000 according to an embodiment.

[0714] Reference Figure 44 The vehicle 700 according to the embodiment may include predetermined sensors and wheels 13FL and 13FR that rotate via a power source. The sensors may be, but are not limited to, a camera sensor 2000.

[0715] Camera 2000 may be a camera sensor that uses camera module 1000 according to an embodiment.

[0716] In this embodiment, the vehicle 700 can acquire image information through a camera sensor 2000 that captures images of the front or surroundings, and use the image information to determine lane unrecognized situations in order to generate virtual lanes.

[0717] For example, camera sensor 2000 can obtain a frontal image by capturing the front of vehicle 700, and processor (not shown) can analyze objects contained in the frontal image to obtain image information.

[0718] For example, if an image captured by the camera sensor 2000 contains objects such as lanes, adjacent vehicles, driving obstacles, and indirect road markings such as median strips, curbs, or roadside trees, the processor can detect these objects and include them in the image information.

[0719] In this scenario, the processor can acquire distance information from objects detected by the camera sensor 2000, thereby further supplementing the image information. The image information can be information about the objects captured in the image.

[0720] The camera sensor 2000 may include an image sensor and an image processing module. The camera sensor 2000 can process still or moving images acquired by the image sensor (e.g., CMOS or CCD). The image processing module can process the still or moving images acquired by the image sensor, extract necessary information, and transmit the extracted information to a processor.

[0721] In this context, the camera sensor 2000 may include, but is not limited to, a stereo camera, to improve the accuracy of object measurement and further ensure information such as the distance between the vehicle 700 and the object.

[0722] Although embodiments have been described so far, they are merely exemplary and do not limit the scope of this disclosure, and those skilled in the art will understand that various modifications and applications not described above can be made without departing from the scope of the subject matter of this disclosure. For example, the various elements specifically illustrated in the embodiments can be implemented by modification. Differences relating to these modifications and applications should be interpreted as including within the scope of this disclosure as defined in the appended claims.

Claims

1. A camera actuator, comprising: case; A first component, which is combined with the housing; A mover, the mover including optical components; A first magnetic body is disposed on the first component; A second magnetic body is disposed on the mover; as well as The tilting guide section is used to guide the tilting of the mover. The mover includes a retainer coupled to the optical component and a second component coupled to the retainer. The tilting guide portion is in close contact with the first component and the retainer through the repulsive force of the first magnetic body and the second magnetic body, and The optical component alters the path of the incident light, and the direction of the outgoing light after incident is aligned with the optical axis. The tilting guide portion is disposed between the first magnetic body and the retainer. The second magnetic body, the first magnetic body, the tilting guide portion, and the optical component are arranged sequentially along the optical axis and overlap each other along the optical axis. The tilt guide portion is configured to guide tilting when the retainer and the first member are in close contact with each other.

2. The camera actuator according to claim 1, wherein, The tilting guide portion includes at least one protrusion extending from the lateral surface of the tilting guide portion and at least one through hole disposed on the same lateral surface and spaced apart from the at least one protrusion.

3. The camera actuator according to claim 2, wherein, The first component includes a first through hole and a second through hole spaced apart from the first through hole, and The second component includes: a component base; a first extension located at the edge of the component base and extending toward the retainer; and a second extension spaced apart from the first extension and extending toward the mover.

4. The camera actuator according to claim 3, wherein, The first extension passes through the first through hole, and The second extension passes through the second through hole.

5. The camera actuator according to claim 4, wherein, The first component includes: An upper component is disposed above the first through hole and the second through hole; The lower component is disposed below the first through hole and the second through hole; A connecting member that connects the upper member to the lower member; A first protrusion, the first protrusion extending from one side of the upper member toward the retainer; and A second protrusion extends from the other side of the upper member toward the retainer. The first extension and the second extension are disposed between the upper member and the lower member.

6. A camera actuator, comprising: case; A first component, which is combined with the housing; A mover, the mover including a retainer; A first magnetic body is disposed on the first component; A second magnetic body is disposed on the mover; as well as A tilting guide portion is disposed between the retainer and the first member. The mover includes a second component that is coupled to the retainer. A portion of the first component is disposed between the second component and the retainer. Wherein, the first surface of the first magnetic body and the second surface of the second magnetic body facing the first surface have the same polarity, and The inclined guide portion includes at least one protrusion extending from the lateral surface of the inclined guide portion and at least one through hole disposed on the same lateral surface and spaced apart from the at least one protrusion. The second magnetic body, the first magnetic body, the tilting guide portion, and the holder are arranged sequentially along the optical axis and overlap each other along the optical axis. The tilt guide portion is configured to guide tilting when the retainer and the first member are in close contact with each other.

7. The camera actuator according to claim 6, wherein, The center of the second magnetic body and the center of the second component are located at different positions from each other.

8. The camera actuator according to claim 7, wherein, The center of the second magnetic body is located above or below the center of the second component.

9. The camera actuator according to claim 8, wherein, The area of ​​the second magnetic body is larger than the area of ​​the first magnetic body, and The first magnetic body is located on an imaginary straight line extending from the two ends of the second magnetic body along the optical axis.

10. A camera actuator, comprising: case; A first component, which is combined with the housing; A first magnetic body is disposed on the first component; A second magnetic body, which corresponds to the first magnetic body; The second component, wherein the second magnetic body is disposed on the second component; A retainer, which is coupled to the second component; as well as A tilting guide portion is disposed between the retainer and the first member. Wherein, a portion of the first component is disposed between the second component and the retainer, and The inclined guide portion includes at least one protrusion extending from the lateral surface of the inclined guide portion and at least one through hole disposed on the same lateral surface and spaced apart from the at least one protrusion. The second magnetic body, the first magnetic body, the tilting guide portion, and the holder are arranged sequentially along the optical axis and overlap each other along the optical axis. The tilt guide portion is configured to guide tilting when the retainer and the first member are in close contact with each other.

11. The camera actuator according to claim 10, wherein, The first magnetic body and the second magnetic body face each other with the same polarity.

Images