Camera actuator and camera module including same

Abstract

An embodiment of the present invention discloses a camera actuator including a housing, a mover disposed within the housing, a tilting guide portion disposed between the housing and the mover, a drive portion disposed within the housing for driving the mover, an elastic member for bringing the tilting guide portion and the mover into close contact, and a damper member disposed between at least one of the mover and the housing and the elastic member.

Description

[Technical Field]

[0001] The present invention relates to a camera actuator and a camera module including the same. [Background technology]

[0002] A camera is a device that takes photos or videos of a subject and is attached to portable devices, drones, vehicles, etc. To improve image quality, a camera module can have an image stabilization (IS) function that corrects or prevents image shake caused by the user's movement, an autofocus (AF) function that automatically adjusts the distance between the image sensor and lens to align the lens' focal length, and a zooming function that increases or decreases the magnification of a distant subject through a zoom lens.

[0003] On the other hand, the higher the pixel count of an image sensor, the higher the resolution and the smaller the pixel size, but the smaller the pixel size, the less light is received over the same period of time. Therefore, the higher the pixel count of a camera, the more severe the image blur caused by camera shake, which occurs when the shutter speed is slow in a dark environment. One of the most representative image stabilization (IS) technologies is optical image stabilizer (OIS), which corrects for movement by changing the path of light.

[0004] According to general OIS technology, camera movement is detected through a gyro sensor or the like, and the lens or camera module including the lens and image sensor is tilted or moved based on the detected movement. When the lens or the camera module including the lens and image sensor is tilted or moved for OIS, additional space for tilting or moving needs to be secured around the lens or camera module.

[0005] Meanwhile, the actuator for the OIS may be arranged around the lens, and may include an actuator for tilting along two axes perpendicular to the optical axis Z, i.e., an actuator for tilting along the X-axis and an actuator for tilting along the Y-axis.

[0006] However, due to the need for ultra-slim and ultra-compact camera modules, there are significant spatial constraints for arranging actuators for OIS, and it may be difficult to ensure sufficient space for the lens or the camera module itself including the lens and image sensor to tilt or move for OIS. Also, the higher the pixel count of a camera, the larger the lens size is preferred to increase the amount of light received, but there may be a limit to how large the lens size can be due to the space occupied by the actuator for OIS.

[0007] Furthermore, if the zooming function, AF function, and OIS function are all included in the camera module, there is a problem that the magnet for OIS and the magnet for AF or Zoom are placed close to each other, causing magnetic field interference.

[0008] Also, there is a problem with the OIS function causing the vehicle to start moving. Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention provides a camera actuator that uses the elasticity of an elastic member to provide a maintaining force in an OIS actuator, while suppressing the start of the elastic member through a damper member.

[0010] Furthermore, a camera actuator with improved reliability and durability can be provided through the coupling force between various components and the elastic member by the damper member.

[0011] Another object of the present invention is to provide a camera actuator that is applicable to ultra-slim, ultra-compact and high-resolution cameras.

[0012] It is also possible to provide a camera actuator that stably holds the tilting guide portion.

[0013] The problems to be solved by the examples are not limited to these, and may also include the objectives and effects that can be grasped from the means for solving the problems and embodiments described below. [Means for solving the problem]

[0014] A camera actuator according to an embodiment of the present invention includes a housing, a mover disposed within the housing, a tilting guide portion disposed between the housing and the mover, a driving portion disposed within the housing and driving the mover, an elastic member that brings the tilting guide portion and the mover into close contact with each other, and a damper member that is coupled to at least one group of the elastic member, the mover, and the elastic member and the housing.

[0015] The mover may include a mounting groove that receives the tilting guide portion, and may include a first member that is received in the mounting groove, disposed outside the tilting guide portion, and coupled to the mover.

[0016] The tilting guide may include a second member at least a portion of which is disposed between the tilting guide portion and the first member and which is coupled to the housing.

[0017] The first member and the second member may be received in the mounting groove.

[0018] The elastic member may include a first joint portion connected to the housing, a second joint portion connected to the first member, and a connecting portion connecting the first joint portion and the second joint portion.

[0019] The mover may include a plurality of mover protrusions protruding toward the elastic member, and the damper member may be disposed in a mover groove located between the plurality of mover protrusions and contact the mover.

[0020] The connecting portion is at least partially disposed within the mover groove and can contact the damper member.

[0021] The protrusion may include a first protrusion and a second protrusion spaced apart along a first direction, the connecting portion may pass through the mover groove, and the mover groove may be located between the first protrusion and the second protrusion.

[0022] The protrusions may include a third protrusion disposed inside the mover groove.

[0023] The height of the third protrusion may be lower than the height of the first protrusion or the second protrusion.

[0024] The first member may include a member protrusion disposed adjacent to the connecting portion.

[0025] The member protrusion may at least partially overlap with the connecting portion in the optical axis direction, and at least a portion of the connecting portion may have a curvature corresponding to an outer surface of the member protrusion.

[0026] The damper member may be coupled to the member protrusion and the connecting portion.

[0027] The member protrusion may be located between the first joint portion and the second joint portion.

[0028] The second member may include a housing protrusion disposed adjacent to the connecting portion.

[0029] The housing protrusion may at least partially overlap with the connecting portion in the optical axis direction.

[0030] At least a portion of the connecting portion may have a curvature corresponding to the outer surface of the housing protrusion.

[0031] The damper member may be coupled to the housing protrusion and the connecting portion.

[0032] The housing protrusion may at least partially overlap the damper member along a first direction.

[0033] The damper member may be coupled to a leg of the connector.

[0034] The second joint may be disposed between the mover and the first joint.

[0035] Another example of a camera actuator includes a housing, a mover disposed within the housing and including an optical element, a tilting guide portion disposed between the housing and the mover, a driving portion disposed within the housing and driving the mover, and an elastic member disposed between the tilting guide portion and the housing, and the driving portion includes a first magnet disposed on a first side of the mover and a dummy member disposed on a second side opposite the first side.

[0036] The driving unit may further include a second magnet disposed under the mover, a first coil facing the first magnet, and a second coil facing the second magnet.

[0037] The substrate unit may include a substrate part electrically connected to the driving unit, the substrate part including a first substrate side part, a second substrate side part facing the first substrate side part, and a third substrate side part disposed between the first substrate side part and the second substrate side part, the first substrate side part being electrically connected to the first coil and the third substrate side part being electrically connected to the second coil, and may further include a driving driver disposed on either the first substrate side part or the third substrate side part.

[0038] The second substrate side may be a dummy substrate.

[0039] The driver can provide current to the first coil and the second coil.

[0040] The elastic member can bring the tilting guide part and the mover into close contact with each other.

[0041] The device may further include a first member connected to the housing and a second member coupled to the mover, the second member being disposed between the first member and the mover, and the elastic member may include a first joint connected to the housing, a second joint connected to the first member, and a connecting portion connecting the first joint and the second joint.

[0042] The second joint may be disposed between the mover and the first joint.

[0043] The tilting guide portion includes a base, a first protrusion protruding from a first surface of the base, and a second protrusion protruding from a second surface of the base, and the mover can be tilted about a first axis based on the first protrusion and tilted about a second axis based on the second protrusion.

[0044] The connecting portion may include a first connecting portion to a fourth connecting portion respectively arranged in a first quadrant to a fourth quadrant defined by a first bisector and a second bisector, the first quadrant to the fourth quadrant being positioned along a counterclockwise direction, the first connecting portion and the third connecting portion being symmetrical with respect to the first bisector and the second bisector, the second connecting portion and the fourth connecting portion being symmetrical with respect to the first bisector and the second bisector, the first bisector being a line that bisects the elastic member along a first direction, and the second bisector being a line that bisects the elastic member along a second direction.

[0045] An electronic device according to an embodiment includes a first camera module in which an opening through which light enters and an image sensor at least partially overlap in the optical axis direction, and a second camera module including an optical element that changes the optical path of the incident light, wherein the second camera module includes a first side adjacent to the first camera module, a second side facing the first side, a drive unit that moves the optical element between the optical element and the second side, and a dummy element between the optical element and the first side. [Effects of the Invention]

[0046] According to an embodiment of the present invention, a camera actuator can be realized in which the OIS actuator has a holding force using the elasticity of an elastic member, and the start caused by the elastic member is suppressed by a damper member.

[0047] In addition, a camera actuator with improved reliability and durability can be realized through the coupling force between various components and the elastic member by the damper member.

[0048] Furthermore, it is possible to provide a camera actuator that is applicable to ultra-slim, ultra-compact, and high-resolution cameras. In particular, it is possible to efficiently arrange an OIS actuator without increasing the overall size of the camera module.

[0049] Furthermore, according to the embodiment of the present invention, the driving stability of the camera actuator can be improved.

[0050] In addition, tilting in the X-axis direction and tilting in the Y-axis direction do not cause magnetic field interference with each other, so tilting in the X-axis direction and tilting in the Y-axis direction can be realized with a stable structure, and precise OIS function can be realized without causing magnetic field interference with the AF or zooming actuators.

[0051] According to the embodiment of the present invention, it is possible to eliminate the lens size limitation, ensure sufficient light intensity, and realize a low-power OIS.

[0052] The various advantageous and beneficial effects of the present invention are not limited to the above-mentioned contents, but will be more easily understood in the course of describing specific embodiments of the present invention. [Brief explanation of the drawings]

[0053] [Figure 1] FIG. 1 is a perspective view of a camera module according to an embodiment. [Figure 2] FIG. 1 is an exploded perspective view of a camera module according to an embodiment. [Figure 3] FIG. 2 is a cross-sectional view taken along line AA′ in FIG. [Figure 4] FIG. 2 is a perspective view of a first camera actuator according to the first embodiment. [Figure 5] FIG. 2 is an exploded perspective view of a first camera actuator according to the first embodiment. [Figure 6] FIG. 2 is a perspective view of a housing according to the embodiment. [Figure 7] 1 is a diagram of a housing according to an embodiment. [Figure 8] FIG. 1 is a perspective view of a mover according to an embodiment. [Figure 9] FIG. 2 is a perspective view of a holder according to an embodiment. [Figure 10] FIG. 2 is a bottom view of the holder according to the embodiment. [Figure 11] FIG. 2 is a side view of the holder according to the embodiment. [Figure 12] FIG. 2 is a plan view of an elastic member according to an embodiment. [Figure 13] FIG. 4 is a side view of the elastic member according to the embodiment. [Figure 14] FIG. 2 is a top view of an elastic member according to an embodiment. [Figure 15] 10 is a view illustrating a connection between a first member, a second member, and an elastic member in a first camera actuator according to a first embodiment. [Figure 16] This is an enlarged view of part K in FIG. [Figure 17a] FIG. 10 is a perspective view of the damper member of the first camera actuator according to the first embodiment before coating. [Figure 17b] Perspective view of the first camera actuator according to the first embodiment after application of the damper member. [Figure 17c] Drawing showing the connection between the first member, the second member, and the elastic member in the first camera actuator according to the first embodiment. [Figure 17d] Drawing of another aspect of FIGURE 17c. [Figure 17e] Drawing of still another aspect of FIGURE 17c. [Figure 18] Drawing of FIGURE 17c with the first member removed. [Figure 19] Perspective view of the tilting guide portion according to the embodiment. [Figure 20] Perspective view of the tilting guide portion in a direction different from FIGURE 19. [Figure 21] Cross-sectional view of the tilting guide portion cut along FF' in FIGURE 19. [Figure 22] Perspective view of the first camera actuator according to the first embodiment with the shield can and the substrate removed. [Figure 23] Cross-sectional view cut along PP' in FIGURE 22. [Figure 24] Cross-sectional view cut along QQ' in FIGURE 22. [Figure 25] Drawing showing the drive portion according to the embodiment. [Figure 26] Drawing showing the drive portion according to the modified example. [Figure 27] Perspective view of the first camera actuator according to the first embodiment. [Figure 28] Cross-sectional view cut along SS' in FIGURE 27. [Figure 29] Exemplary drawing of the movement of the first camera actuator illustrated in FIGURE 28. [Figure 30] Perspective view of the first camera actuator according to the first embodiment. [Figure 31] Cross-sectional view cut along RR' in FIGURE 30. [Figure 32] Exemplary drawing of the movement of the first camera actuator illustrated in FIGURE 31. [Figure 33] FIG. 10 is a perspective view of a first camera actuator according to a second embodiment. [Figure 34] 10 is a view illustrating a first member of a first camera actuator according to a second embodiment. [Figure 35] FIG. 10 is a top view of a first member of a first camera actuator according to a second embodiment. [Figure 36] FIG. 10 is a side view of a first camera actuator according to a second embodiment. [Figure 37] FIG. 10 is a perspective view of a first camera actuator according to a third embodiment. [Figure 38] 10 is a diagram illustrating a first camera actuator according to a third embodiment. [Figure 39] FIG. 10 is a side view of a first camera actuator according to a third embodiment. [Figure 40] 10 is a diagram illustrating a first camera actuator according to a modified example. [Figure 41] FIG. 10 is a perspective view of a first camera actuator according to a fourth embodiment. [Figure 42] FIG. 10 is an exploded perspective view of a first camera actuator according to a fourth embodiment. [Figure 43a] FIG. 10 is a perspective view of a housing of a first camera actuator according to a fourth embodiment. [Figure 43b] FIG. 43b is a perspective view in a different direction from FIG. 43a. [Figure 43c] FIG. 10 is a front view of a housing of a first camera actuator according to a fourth embodiment. [Figure 44a] FIG. 10 is a perspective view of a holder of a first camera actuator according to a fourth embodiment. [Figure 44b] FIG. 13 is a bottom view of the holder of the first camera actuator according to the fourth embodiment. [Figure 44c] FIG. 10 is a front view of a holder of a first camera actuator according to a fourth embodiment. [Figure 44d] FIG. 13 is a rear view of the second member of the first camera actuator according to the fourth embodiment. [Figure 44e]FIG. 13 is a bottom view of the second member of the first camera actuator according to the fourth embodiment. [Figure 45a] FIG. 2 is a plan view of an elastic member according to an embodiment. [Figure 45b] FIG. 4 is a side view of the elastic member according to the embodiment. [Figure 45c] FIG. 2 is a top view of an elastic member according to an embodiment. [Figure 45d] 10 is a view illustrating the connection between the first member, the second member, and the elastic member in the first camera actuator according to the fourth embodiment. [Figure 45e] 45d is a view in which the first and second members have been removed. [Figure 46] 10 is a diagram of a first camera actuator according to a fifth embodiment. [Figure 47] 13 is a diagram of a first camera actuator according to a sixth embodiment. [Figure 48] 13 is a diagram of a first camera actuator according to the seventh embodiment. [Figure 49] 13 is a diagram of a first camera actuator according to the eighth embodiment. [Figure 50] FIG. 2 is a perspective view of a second camera actuator according to the embodiment. [Figure 51] FIG. 2 is an exploded perspective view of a second camera actuator according to the embodiment. [Figure 52] This is a cross-sectional view taken along the line DD' in FIG. [Figure 53] This is a cross-sectional view seen from EE' in Figure 50. [Figure 54] 1 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied; [Figure 55] 1 is a perspective view of a vehicle to which a camera module according to an embodiment is applied; DETAILED DESCRIPTION OF THE INVENTION

[0054] The present invention can be modified in various ways and can have various embodiments, and a specific embodiment will be described by way of example in the drawings. However, it is not intended to limit the present invention to the specific embodiment, and it should be understood that the present invention includes all modifications, equivalents, and alternatives that fall within the spirit and technical scope of the present invention.

[0055] Terms including ordinal numbers, such as "second," "first," etc., may be used to describe various components, but the components are not limited by the terms. Terms are used only to distinguish one component from another. For example, a second component may be designated as a "first component," and similarly, a first component may be designated as a "second component," without departing from the scope of the present invention. The term "and / or" includes a combination of multiple related listed items or any of multiple related listed items.

[0056] When a component is said to be "coupled" or "connected" to another component, it should be understood that it may be directly coupled or connected to the other component, but that there may be other components in between. Conversely, when a component is said to be "directly coupled" or "directly connected" to another component, it should be understood that there are no other components in between.

[0057] The terms used in this application are merely used to describe specific embodiments and are not intended to limit the present invention. The singular expressions include the plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprise" or "have" are intended to specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should be understood not to preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0058] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms as defined in commonly used dictionaries should be interpreted to have a meaning consistent with the meaning they have in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly defined in this application.

[0059] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be given the same reference numerals regardless of the drawing reference numerals, and redundant description thereof will be omitted.

[0060] FIG. 1 is a perspective view of a camera module according to an embodiment, FIG. 2 is an exploded perspective view of the camera module according to the embodiment, and FIG. 3 is a cross-sectional view taken along line AA′ in FIG.

[0061] 1 and 2, a 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 referred to as the "first actuator," and the second camera actuator 1200 may be referred to as the "second actuator."

[0062] The cover CV can cover the first camera actuator 1100 and the second camera actuator 1200. The cover CV can improve the coupling force between the first camera actuator 1100 and the second camera actuator 1200.

[0063] Furthermore, the cover CV may be made of a material that blocks electromagnetic waves, so that the first camera actuator 1100 and the second camera actuator 1200 inside the cover CV can be easily protected.

[0064] The first camera actuator 1100 may be an OIS (Optical Image Stabilizer) actuator. For example, the first camera actuator 1100 may move an optical member in a direction perpendicular to the optical axis.

[0065] The first camera actuator 1100 may include a fixed focal length lens disposed in a predetermined lens barrel (not shown). A fixed focal length lens may be referred to as a "single focal length lens" or "single lens."

[0066] The first camera actuator 1100 can change the path of light. As an example, the first camera actuator 1100 can change the path of light vertically through an internal optical member (e.g., a prism or a mirror). With this configuration, even if the thickness of the mobile terminal is reduced, a lens structure larger than the thickness of the mobile terminal can be disposed within the mobile terminal through the change in the path of light, thereby enabling magnification, autofocusing (AF), and OIS functions to be performed.

[0067] However, the present invention is not limited to this, and the first camera actuator 1100 can change the optical path vertically or at a predetermined angle multiple times.

[0068] The second camera actuator 1200 may be disposed at the rear end of the first camera actuator 1100. The second camera actuator 1200 may be coupled to the first camera actuator 1100. The coupling therebetween may be achieved in various ways.

[0069] The second camera actuator 1200 may be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator 1200 may support one or more lenses and perform an auto focus function or a zoom function by moving the lenses in response to a control signal from a predetermined controller.

[0070] One or more lenses move independently or individually along the optical axis.

[0071] The circuit board 1300 may be disposed at the rear end of the second camera actuator 1200. The circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100. There may also be a plurality of circuit boards 1300. The circuit board 1300 may include an image sensor and a connector electrically connected to another external camera module or a terminal process.

[0072] The camera module according to the embodiment may be a single camera module or multiple camera modules, for example, multiple camera modules may include a first camera module and a second camera module.

[0073] 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.

[0074] The second camera module may be disposed in a predetermined housing (not shown) and may include an actuator (not shown) capable of driving the lens unit. The actuator may be a voice coil motor, a microactuator, a silicon actuator, or the like, and may be variously applied, such as an electrostatic type, a thermal type, a bimorph type, or an electrostatic force type, but is not limited thereto. In addition, the camera actuator may be referred to as an actuator or the like in this specification. In addition, a camera module consisting of multiple camera modules may be mounted in various electronic devices such as a mobile terminal. For example, the electronic device may include a smartphone, a mobile terminal (e.g., a mobile phone), a mobile terminal, and the like.

[0075] Referring to FIG. 3, the camera module according to the embodiment may include a first camera actuator 1100 that performs an OIS function and a second camera actuator 1200 that performs a zooming function and an AF function.

[0076] Light may enter the camera module or the first camera actuator through an opening region located on the top surface of the first camera actuator 1100. That is, light enters the first camera actuator 1100 along the optical axis direction (e.g., the X-axis direction), and the optical path may be changed vertically (e.g., the Z-axis direction) through the optical members. The optical axis direction (Z-axis direction) may correspond to the direction of movement of light reflected by the optical members described below, and this will be used as a basis for the description. The light may then pass through the second camera actuator 1200 and enter the image sensor IS located at one end of the second camera actuator 1200 (PATH).

[0077] In this specification, the bottom refers to one side in the first direction. The first direction is the X-axis direction in the drawing and may be mixed with the second-axis direction, etc. The second direction is the Y-axis direction in the drawing and may be mixed with the first-axis direction, etc. The second direction is a direction perpendicular to the first direction. The third direction is the Z-axis direction in the drawing and may be mixed with the third-axis direction, etc. The third direction is a direction perpendicular to both the first and second directions. Here, 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 directions perpendicular to the optical axis and may be tilted by the second camera actuator. In the following description of the first camera actuator 1100 or the second camera actuator 1200, the optical axis direction is the third direction (Z-axis direction), and the following description will be based on this.

[0078] In addition, in this specification, the "inside" may be the direction from the cover CV to the first camera actuator, and the "outside" may be the opposite direction to the "inside." That is, the first camera actuator and the second camera actuator may be located inside the cover CV, and the cover CV may be located outside the first camera actuator or the second camera actuator.

[0079] With this configuration, the camera module according to the embodiment can change the light path to improve the spatial limitations of the first camera actuator and the second camera actuator. That is, the camera module according to the embodiment can minimize the thickness of the camera module and extend the light path in response to the change in the light path. Furthermore, it should be understood that the second camera actuator can provide a wide range of magnification by controlling the focus, etc., in the extended light path.

[0080] In addition, the camera module according to the embodiment can implement OIS by controlling the optical path through the first camera actuator, thereby minimizing the occurrence of descent and tilt phenomena and exhibiting the best optical characteristics.

[0081] 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.

[0082] The second camera actuator 1200 includes a coil and a magnet, and can perform a high magnification zoom function.

[0083] For example, the first and second lens assemblies may be moving lenses that move via coils, magnets, guide pins, etc., and the third lens assembly may be a fixed lens, but is not limited to these. For example, the third lens assembly may function as a condenser, focusing light at a specific position, and the first lens assembly may function as a variator, refocusing the image focused by the third lens assembly (the condenser) at another location. Meanwhile, the first lens assembly may experience significant changes in magnification due to significant changes in the distance to the subject or the image distance, and the first lens assembly (the variator) may play an important role in changing the focal length or magnification of the optical system. Meanwhile, the image point focused by the first lens assembly (the variator) may vary slightly depending on its position. Therefore, the second lens assembly may perform a position compensation function for the image focused by the variator. For example, the second lens assembly may perform a compensator function, focusing the image point focused by the first lens assembly (the variator) accurately at the actual image sensor position. For example, the first lens assembly and the second lens assembly may be driven by electromagnetic force due to the interaction between a coil and a magnet. The above content may be applied to the lens assemblies described below. Furthermore, the first lens assembly to the third lens assembly may move along the optical axis direction, i.e., the third direction. The first lens assembly to the third lens assembly may move in the third direction independently or dependently of each other.

[0084] Meanwhile, when an actuator for OIS and an actuator for AF or Zoom are arranged according to an embodiment of the present invention, magnetic field interference with the magnet for AF or Zoom can be prevented when the OIS is driven. Since the first driving magnet of the first camera actuator 1100 is arranged separately 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 may be used interchangeably with terms such as image stabilization, optical image stabilization, optical image correction, and shake correction.

[0085] FIG. 4 is a perspective view of the first camera actuator according to the first embodiment, FIG. 5 is an exploded perspective view of the first camera actuator according to the first embodiment, FIG. 6 is a perspective view of the housing according to the embodiment, and FIG. 7 is a drawing of the housing according to the embodiment.

[0086] 4 to 7, the first camera actuator 1100 according to the first embodiment includes a shielding can 1110, a housing 1120, a mover 1130, a rotating part 1140, an elastic member EE, a first driving part 1150, a first member 1131a, a second member 1126, and a damper member DP.

[0087] The mover 1130 may include a holder 1131 and an optical member 1132 mounted on the holder 1131. The rotating part 1140 may include a tilting guide part 1141. The first driving part 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor part 1153, a substrate part 1154, and a yoke part 1155.

[0088] The shielding can 1110 is located at the outermost side of the first camera actuator 1100 and can be positioned to surround a rotating part 1140, a first driving part 1150, a housing 1120, etc., which will be described later.

[0089] Such a shielding can 1110 can block or reduce externally generated electromagnetic waves, that is, the shielding can 1110 can reduce the occurrence of malfunctions in the rotating part 1140 or the first driving part 1150.

[0090] The housing 1120 may be located inside the shielding can 1110. The housing 1120 may also be located inside a base portion 1154, which will be described later. The housing 1120 may be fastened to the shielding can 1110 by being inserted into or mated with each other. The housing 1120 may be referred to as the "first housing."

[0091] The housing 1120 can include a first housing side 1121 , a second housing side 1122 , a third housing side 1123 and a fourth housing side 1124 .

[0092] The first housing side 1121 and the second housing side 1122 may be disposed opposite each other, and the third housing side 1123 and the fourth housing side 1124 may be disposed between the first housing side 1121 and the second housing side 1122.

[0093] The third housing side 1123 may be in contact with the first housing side 1121, the second housing side 1122, and the fourth housing side 1124. The third housing side 1123 may have a bottom surface in the housing 1120. The first housing side 1121, the second housing side 1122, and the fourth housing side 1124 may have side surfaces.

[0094] As mentioned above, the third direction (Z-axis direction) corresponds to the direction of the optical axis (with respect to light reflected and traveling by the optical member), and the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis and can be tilted by the first camera actuator, which will be described in detail later.

[0095] The first housing side portion 1121 may include a first housing hole 1121a, in which a first coil 1152a (described later) may be located.

[0096] In addition, the second housing side portion 1122 may include a second housing hole 1122a, in which a second coil 1152b (described later) may be located.

[0097] The first coil 1152a and the second coil 1152b may be coupled to the substrate unit 1154. As an example, the first coil 1152a and the second coil 1152b may be electrically connected to the substrate unit 1154 so that a current may flow through them. This current is an element of electromagnetic force that allows the first camera actuator to tilt about the X-axis.

[0098] Additionally, the third housing side 1123 may include a third housing hole 1123a and a housing groove 1123b'.

[0099] A third coil 1152c, which will be described later, may be positioned in the third housing hole 1123a. The third coil 1152c may be coupled to the substrate 1154. The third coil 1152c is electrically connected to the substrate 1154, allowing current to flow through it. This current is an element of electromagnetic force that allows the first camera actuator to tilt about the Y-axis.

[0100] A second member 1126, which will be described later, can be attached to the housing groove 1123b'. The second member 1126 can be referred to as a "housing rigid" or "housing additional member," among others.

[0101] In addition, the housing groove 1123b' may be formed extending from the third housing side 1123 to the first housing side 1121 and the second housing side 1122. That is, the housing groove 1123b' may be located in the first housing side 1121, the second housing side 1122, and the third housing side 1123. Accordingly, the second member 1126 may be coupled to the first housing side 1121, the second housing side 1122, and the third housing side 1123. As in the first camera actuator of the embodiment, the second member 1126 may be mounted in a housing groove formed by a protrusion or the like and coupled to the housing 1120. The second member 1126 may be coupled to the housing 1120 as described above. However, the mover 1130, tilting guide member 1141, second member 1126, and first member 1131a (described below) may be sequentially stacked on the fourth housing side 1124 through the coupling via the housing groove. This can improve ease of assembly. Alternatively, the second member 1126 may be formed integrally with the housing 1120. Furthermore, the first member 1131a may be used interchangeably with the "mover rigid" and "mover additional member," etc.

[0102] The camera module according to the embodiment includes a fixed member, which may be a component that does not move when the camera actuator tilts in one axis or two axes. In the embodiment, the fixed member may include at least one of the housing 1120 and the second member 1126. This is the basis for the description in this specification.

[0103] The elastic member EE can be positioned between the mover 1130 and the fixed member. Also, the tilting guide portion 1141 can be positioned between the fixed member and the mover. The elastic member EE can pull the mover 1130 toward the fixed member, thereby bringing the tilting guide portion 1141 into close contact with the fixed member and the mover. In other words, the elastic member EE can pull the mover 1130 toward the fixed member, thereby causing the tilting guide portion 1141 to be pressed by the fixed member and the mover. The elastic member EE can also bring the tilting guide portion 1141 into close contact with the mover 1130. In other words, the elastic member EE can pull the mover 1130 toward the fixed member, that is, the housing 1120 or the second member 1126. This structure will be described later.

[0104] Furthermore, the fourth housing side 1124 is disposed between the first housing side 1121 and the second housing side 1122 and can contact the first housing side 1121, the second housing side 1122 and the third housing side 1123.

[0105] The fourth housing side 1124 can contact the second camera actuator connected to the first camera actuator. Accordingly, the fourth housing side 1124 can include a protrusion, a groove, or a plurality of notches formed on the housing outer surface 1124b. Accordingly, the fourth housing side can facilitate connection with other adjacent camera actuators. That is, the connection strength between the second camera actuator and the first camera actuator can be further improved through the fourth housing side 1124. Furthermore, with this configuration, the fourth housing side not only provides an optical path but also improves the connection strength between other components, suppressing movement of openings due to separation, etc., thereby minimizing changes in the optical path.

[0106] The fourth housing side 1124 may include an opening region 1124a through which light redirected by the optical members of the first camera actuator may travel to the second camera actuator. As described above, autofocusing and / or zooming may be performed in the second camera actuator, and optical image stabilization (OIS) may be performed in the first camera actuator.

[0107] In addition, the housing 1120 may include a receiving portion 1125 formed by the first housing side portion 1121 to the fourth housing side portion 1124. The receiving portion 1125 may include components such as a second member 1126, a first member 1131a, a tilting guide portion 1141, a mover 1130, and an elastic member EE.

[0108] The second member 1126 may be disposed in the housing 1120 so as to be coupled to the housing 1120. The second member 1126 may be disposed within the housing or connected to the housing 1120. The second member 1126 may be easily coupled to the housing 1120. As an example, the second member 1126 may be fitted into or at least partially penetrate a housing groove 1123b' formed in the third housing side portion 1123 to be coupled to the third housing side portion 1123. In this way, the second member 1126 may be coupled to the housing 1120 and maintain fixation between the mover 1130 and the tilting guide portion 1141, which will be described later.

[0109] The second member 1126 may also include a first coupling portion PP1 disposed in an area adjacent to the first and second housing sides 1121 and 1122. Alternatively, the first coupling portion PP1 may be disposed on the outer surface of the fourth housing side 1124 of the housing 1120. The first coupling portion PP1 may be formed of a protrusion. The first coupling portion PP1 may be coupled to the first joining portion EP1. As described below, the first coupling portion PP1 may be inserted into a first joining hole of the first joining portion EP1.

[0110] In addition, the second member 1126 includes a second protrusion groove PH2 in which the second protrusion of the tilting guide is mounted. Accordingly, the second member 1126 has the protrusion of the tilting guide disposed adjacent to the optical member within the fourth mounting groove. Therefore, the protrusion, which is the reference axis of tilt, can be disposed close to the center of gravity of the mover 1130. As a result, during tilt, the moment that moves the mover 1130 for tilt is minimized, thereby minimizing the consumption of current driving the coil and reducing power consumption.

[0111] Also, as described above, the second member 1126 may be formed integrally with or separately from the housing 1120. If the second member 1126 is formed integrally with the housing 1120, the bonding strength between the second member 1126 and the housing 1120 may be increased, thereby improving the reliability of the camera actuator. If the second member 1126 is formed separately, the ease of assembly and manufacturing of the second member 1126 and the housing 1120 may be improved. The following description will be based on the case where the second member 1126 is separated.

[0112] The mover 1130 includes a holder 1131 and an optical member 1132 attached to the holder 1131 .

[0113] First, the holder 1131 can be mounted in the receiving portion 1125 of the housing 1120. The holder 1131 can include first to fourth holder outer surfaces corresponding to the first housing side 1121, the second housing side 1122, the third housing side 1123, and the fourth housing side 1124, respectively. The holder 1131 can also include a first member 1131a disposed in the fourth mounting groove 1131S4a, which will be described in detail below.

[0114] The optical member 1132 may be mounted on the holder 1131. To this end, the holder 1131 may have a mounting surface, which may be formed as a receiving groove. As an example, the optical member 1132 may be a mirror. While the following description will be based on a mirror, the optical member 1132 may be made of a plurality of lenses, as in the previous embodiment. For example, the optical member 1132 may include a reflector disposed therein. However, the optical member 1132 is not limited thereto. The optical member 1132 may reflect light reflected from the outside (e.g., an object) into the camera module. In other words, the optical member 1132 may change the path of the reflected light to improve the spatial limitations of the first and second camera actuators. It should be understood that this allows the camera module to minimize its thickness while also providing a high range of magnification by expanding the light path.

[0115] Additionally, the first member 1131a may be coupled to the holder 1131. The first member 1131a may contact a protrusion located on the outer surface of the fourth holder in an area other than the fourth mounting groove in the holder 1131. The first member 1131a may be formed integrally with the holder 1131. Alternatively, the first member 1231a may be formed as a separate structure from the holder 1131. Even when the first member 1131a and the holder 1131 are coupled integrally, the fourth mounting groove may be located in the holder 1131. When the first member 1131a is not coupled to the holder 1131, the fourth mounting groove is open downward and rearward, but when the first member 1131a is coupled, the fourth mounting groove may be open downward.

[0116] The elastic member EE may be disposed between the tilting guide portion 1141 and the housing 1120. In particular, the elastic member EE may be disposed on the tilting guide portion 1141, the second member 1126, and the first member 1131a in that order, so that the elastic member EE may be disposed on the first member 1131a.

[0117] The elastic member EE may be made of an elastic material and may connect the second member 1126 and the first member 1131a to each other, and may provide elastic force to the first member 1131a and the holder 1131 connected to the first member 1131a based on the second member 1126 fixed to the housing 1120.

[0118] As a result, the elastic member EE is coupled to the housing 1120 and the mover 1130 between the housing 1120 and the mover 1130, and can apply pressure to the tilting guide portion 1141 through the mover 1130. As a result, the mover 1130 can be tilted in the X-axis and / or Y-axis through the tilting guide portion 1141.

[0119] The portions of the elastic member EE that contact the first member 1131a (or holder 1131) and the housing 1120 may be spaced apart from each other in the third direction (Z-axis direction). The distance between the contacting portions (first and second joints described below) allows the elastic member EE to have a preload. This preload may be transmitted to the tilting guide portion 1141 through the mover 1130 and to the second member 1126 through the tilting guide portion 1141. As a result, the tilting guide portion 1141, which is disposed between the mover 1130 and the second member 1126, may be compressed by the elastic member EE. In other words, the force that positions the tilting guide portion 1141 between the mover 1130 and the second member 1126 may be maintained. As a result, the tilting guide portion 1141 may not come off and may maintain its position between the mover 1130 and the housing 1120 even during X-axis or Y-axis tilting.

[0120] Additionally, the rotating portion 1140 may include a tilting guide portion 1141 .

[0121] The tilting guide portion 1141 can be coupled to the mover 1130 and the housing 1120 described above. Also, the tilting guide portion 1141 can be disposed between the mover 1130 and the second member 1126 to be coupled to the mover 1130 and the housing 1120. In other words, the tilting guide portion 1141 can be disposed between the second member 1126 and the holder 1131. The tilting guide portion 1141 can be located between the second member 1126 and the fourth mounting groove 1131S4a of the holder 1131.

[0122] Accordingly, in the camera actuator according to the embodiment, the first member 1131a, the second member 1126, the tilting guide portion 1141, the holder 1131, and the fourth housing side portion 1124 may be arranged in this order in the third direction (Z-axis direction).

[0123] Also, the tilting guide unit 1141 may be disposed adjacent to the optical axis, thereby allowing the camera actuator according to the embodiment to easily change the optical path by tilting along the first and second axes, which will be described later.

[0124] As an example, the tilting guide portion 1141 may include a first protrusion spaced apart in a first direction (X-axis direction) and a second protrusion spaced apart in a second direction (Y-axis direction). The first protrusion and the second protrusion may protrude in opposite directions. This will be described in detail later. The tilting guide portion 1141 may include a hemisphere or a circle connected to a base, like the first protrusion and the second protrusion. The tilting guide portion 1141 may also include a base or a plate and a plurality of spheres or balls penetrating the plate.

[0125] The first driving part 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor part 1153, a substrate part 1154, and a yoke part 1155. The above-mentioned contents can be applied to these parts.

[0126] The damper member DP may be disposed between the elastic member EE and at least one of the mover 1130 and the housing 1120. Thus, the damper member DP may be coupled to the elastic member EE and at least one of the mover 1130 and the housing 1120. Also, the damper member DP may be coupled to at least one group of the elastic member EE and the mover 1130, or the elastic member EE and the housing 1120. For example, the damper member DP may be coupled to the elastic member EE and the mover 1130. Also, the damper member DP may be coupled to the elastic member EE and the housing 1120.

[0127] Furthermore, the first member 1131a and the second member 1126 can be considered as elements of the mover 1130 and the housing 1120, respectively. Thus, the damper member DP can be coupled to the elastic member EE and the first member 1131a of the mover 1130. The damper member DP can also be coupled to the elastic member EE and the second member 1126 of the housing 1120. Furthermore, the damper member DP can be arranged to connect spaced apart regions of the elastic member EE to each other. This will be described in detail later in various embodiments. Furthermore, hereinafter, the damper member DP can be represented by symbols such as DP, DP1, DP2, DP3, etc. depending on its position.

[0128] FIG. 8 is a perspective view of a mover according to the embodiment.

[0129] 8, an optical element 1132 may be mounted on a holder. The optical element 1132 may be a reflector and may be a right-angle optical element, but is not limited thereto.

[0130] As an example, the optical member 1132 may have a protrusion structure on a portion of its outer surface. The protrusion structure allows the optical member 1132 to be easily coupled to the holder. Furthermore, the optical member 1132 may be mounted on the mounting surface of the holder with its bottom surface 1132b. This allows the bottom surface 1132b of the optical member 1132 to correspond to the mounting surface of the holder. As an example, the bottom surface 1132b may be an inclined surface, similar to the mounting surface of the holder. Accordingly, while the optical member moves with the movement of the holder, it is possible to prevent the optical member 1132 from being separated from the holder due to the movement.

[0131] As described above, the optical member 1132 may be configured with a structure capable of reflecting light reflected from the outside (e.g., an object) back into the camera module. As in the embodiment, the optical member 1132 may be configured with a single mirror. Alternatively, the optical member 1132 may be configured with a prism. For example, the optical member 1132 may be configured with optical elements of various materials or structures that change the path of light. The optical member 1132 can change the path of reflected light to improve the spatial limitations of the first and second camera actuators. It should be understood that this allows the camera module to minimize its thickness while also expanding the optical path to provide a wide range of magnification. It should also be understood that the camera module including the camera actuator according to the embodiment can minimize its thickness while also expanding the optical path to provide a wide range of magnification.

[0132] FIG. 9 is a perspective view of the holder according to the embodiment, FIG. 10 is a bottom view of the holder according to the embodiment, and FIG. 11 is a side view of the holder according to the embodiment.

[0133] 9 to 11, the holder 1131 may include a mounting surface 1131k on which the optical member 1132 is mounted. The mounting surface 1131k may be an inclined surface. The holder 1131 may also include a step 1131b on the mounting surface 1131k. The step 1131b of the holder 1131 may be coupled to a protrusion structure of the optical member 1132.

[0134] The holder 1131 may include a plurality of outer surfaces. For example, the holder 1131 may include a first holder outer surface 1131S1, a second holder outer surface 1131S2, a third holder outer surface 1131S3, and a fourth holder outer surface 1131S4. The same explanation as for the above-described embodiment may be applied to this.

[0135] Specifically, the fourth holder outer surface 1131S4 may include a fourth mounting groove 1131S4a, in which the first member 1131a, the second member 1126, and the tilting guide part 1141 may be sequentially positioned in the third direction (Z-axis direction).

[0136] In an embodiment, the fourth mounting groove 1131S4a may include a plurality of regions, such as a first region AR1, a second region AR2, and a third region AR3.

[0137] The first member 1131a may be located in the first region AR1, that is, the first region AR1 may overlap with the first member 1131a in the first direction (X-axis direction).

[0138] The second region AR2 may be located within the second member 1126. That is, the second region AR2 may overlap with the second member 1126 in the first direction (X-axis direction).

[0139] The tilting guide part 1141 may be located in the third region AR3. Also, the third region AR3 may overlap the tilting guide part 1141 in the first direction (X-axis direction). In particular, the third region AR3 may overlap the base of the tilting guide part 1141 in the first direction (X-axis direction).

[0140] According to an embodiment, the second region AR2 may be located between the first region AR1 and the third region AR3. 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 an 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. This allows a step to be located between the first region AR1 and the second region AR2.

[0141] The first member 1131a may be attached to the outer surface 1131S4 of the fourth holder. A second coupling portion PP2 may be located on the outer surface of the first member 1131a (e.g., the surface facing the surface facing the second member). The second coupling portion PP2 may include a coupling base PP2a and a second coupling protrusion PP2b. The second coupling portion PP2 may be positioned to overlap the first protrusion (described later) in the first direction (X-axis direction).

[0142] The second coupling protrusions PP2b may be spaced apart in the second direction (Y-axis direction), and the bisectors between the second coupling protrusions PP2b may all be positioned on the apex of the first protrusion in the first direction (X-axis direction).

[0143] As an example, the tilting guide portion may be accommodated in the fourth mounting groove 1131S4a. As described above, the first member 1131a may also be accommodated in the fourth mounting groove 1131S4a. In this case, the first member 1131a may be disposed outside the tilting guide portion within the fourth mounting groove 1131S4a. More specifically, the first member 1131a, a portion of the second member, and the tilting guide portion may be sequentially disposed along the third direction (Z-axis direction) within the fourth mounting groove 1131S4a. In other words, the first member 1131a may be disposed in an upper region AR1 of the fourth mounting groove 1131S4a. The tilting guide portion may be disposed in a lower region AR3 of the fourth mounting groove 1131S4a. A portion of the second member may be disposed in an intermediate region AR2 between the upper and lower regions. This allows at least a portion of the second member to be disposed between the tilting guide portion and the first member 1131a. In addition, the first member 1131a and the second member can be at least partially housed in the fourth mounting groove 1131S4a.

[0144] Also, as an embodiment, the holder 1131 of the mover 1130 may include a mover protrusion 1131p protruding from the fourth holder outer surface 1131S4 toward the outside or the spring.

[0145] There may be a plurality of protrusions 1131ap on the holder 1131 of the mover 1130. For example, the mover protrusions 1131p may include a first protrusion 1131ap1, a second protrusion 1131ap2, and a third protrusion 1131ap3.

[0146] The first protrusion 1131ap1 and the second protrusion 1131ap2 may be spaced apart from each other along the first direction (X-axis direction), and the first protrusion 1131ap1 and the second protrusion 1131ap2 may overlap each other along the first direction (X-axis direction).

[0147] Furthermore, a mover groove 1131h may be included between the first protrusion 1131ap1 and the second protrusion 1131ap2 according to the embodiment. The mover groove 1131h may correspond to a region between the first protrusion 1131ap1 and the second protrusion 1131ap2 in the first direction (X-axis direction).

[0148] The elastic member can be disposed in the mover groove 1131h, and the elastic member can pass through the mover groove 1131h.

[0149] Furthermore, the third protrusion 1131ap3 may be disposed inside the mover groove 1131h. That is, the mover groove 1131h may be surrounded by the first protrusion 1131ap1, the second protrusion 1131ap2, and the third protrusion 1131ap3.

[0150] The third protrusion 1131ap3 may be positioned adjacent to the mover groove 1131h. As a result, the mover groove 1131h and the third protrusion 1131ap3 may at least partially overlap in the second direction (Y-axis direction). Furthermore, the third protrusion 1131ap3 may at least partially overlap with the first protrusion 1131ap1 or the second protrusion 1131ap2 in the second direction (Y-axis direction). With this configuration, even if a damper material is applied to the mover groove 1131h, the first protrusion 1131ap1, the second protrusion 1131ap2, and the third protrusion 1131ap3 can prevent the damper material from flowing outward. Furthermore, the third protrusion 1131ap3 can prevent the damper material from moving inward, i.e., toward the first member.

[0151] In an embodiment, the width or length W1 of the first protrusion 1131ap1 in the first direction (X-axis direction) and the width or length W2 of the second protrusion 1131ap2 in the first direction (X-axis direction) may be the same or different. In this case, the third protrusion 1131ap3 may be greater than the distance between the first protrusion 1131ap1 and the second protrusion 1131ap2 in the first direction (X-axis direction). As a result, the third protrusion 1131ap3 can easily prevent the damper member from moving inward.

[0152] The mover groove 1131h may also have a step portion ST. For example, the step portion ST of the mover groove 1131h may be lower in either the inner region 1131hi or the outer region 1131ho. As an example, the inner side (toward the first protrusion groove PH1) may be lower than the outer side. This may suppress the flow toward the inside of the damper member. The mover groove 1131h may also be a groove region formed by the first protrusion portion 1131ap1 and the second protrusion portion 1131ap2. The mover groove 1131h may also be a groove formed at the bottom of the lower surface of the first protrusion portion 1131ap1 or the second protrusion portion 1131ap2.

[0153] 12 is a plan view of the elastic member according to the embodiment, FIG. 13 is a side view of the elastic member according to the embodiment, FIG. 14 is a top view of the elastic member according to the embodiment, FIG. 15 is a drawing explaining the connection between the first member, the second member and the elastic member in the first camera actuator according to the first embodiment, and FIG. 16 is an enlarged view of part K in FIG. 15.

[0154] 12 to 16, the elastic member EE according to the embodiment includes a first joining portion EP1, a second joining portion EP2, and a connecting portion CP.

[0155] The first joint EP1 is connected to the housing 1120, and the first joint EP1 and the housing 1120 can be coupled to each other. There may be a plurality of first joints EP1. The following description will be given assuming that there are two first joints EP1.

[0156] In addition, the first joint EP1 can be coupled to a fixing member. That is, the first joint EP1 can be coupled to the housing 1120 or the second member 1126. Hereinafter, the first joint EP1 can be coupled to the second member 1126 as shown in the drawings.

[0157] The second joint EP2 is connected to the first member 1131a, and the second joint EP2 and the first member 1131a can be joined to each other.

[0158] The connecting portion CP may be disposed between the first joint portion EP1 and the second joint portion EP2, i.e., one end of the connecting portion CP may be connected to the first joint portion EP1 and the other end may be connected to the second joint portion EP2.

[0159] In one embodiment, the second joint EP2 may be located between a plurality of spaced-apart first joints EP1. Specifically, the second joint EP2 may be located between the mover 1130 and the first joint EP1. That is, the second joint EP2 may be spaced apart from the first joint EP1 in the third direction (Z-axis direction). As a result, the connecting portion CP may extend from the first member 1131a toward the second member 1126. Alternatively, the connecting portion CP may extend in the third direction (Z-axis direction). For example, the connecting portion CP may be bent from the first joint EP1 to the second joint EP2. Accordingly, since the first joint EP1 is fixed (the housing is fixed), the elastic restoring force generated by the elastic member EE may be formed from the second joint EP2 toward the first joint EP1. As a result, the first member 1131a connected to the second joint EP2 and the mover 1130 coupled to the first member 1131a may also generate a force toward the first joint EP1 at the second joint EP2. As a result, the aforementioned force may also be applied between the mover 1130 and the tilting guide unit 1141. Finally, the tilting guide unit 1141 presses the second member 1126, so that the tilting guide unit 1141 can maintain the position between the mover 1130 and the second member 1126 (or housing) so that the first axis tilt or second axis tilt described below can be performed. In addition, due to the separation distance dd1 in the third direction (Z-axis direction) between the first joint EP1 and the second joint EP2, the elastic member EE may have the preload, which is the aforementioned force.

[0160] Furthermore, the second bonding portion EP2 of the elastic member EE does not have to be located on a surface that contacts the first bonding portion EP1 of the elastic member EE and one surface of the second member 1126, which is the fixing member. In other words, the second bonding portion EP2 of the elastic member EE does not have to be located on one surface of the first bonding portion EP1 of the elastic member EE (e.g., the surface that contacts the second member) or on a plane (XY plane) relative to the surface that contacts the second member. That is, as described above, the first bonding portion EP1 and the second bonding portion EP2 may be located on different planes (XY) and may be spaced apart in the third direction (Z-axis direction). This allows the second bonding portion EP2 to be located closer to the reflective member than the first bonding portion EP1.

[0161] In this embodiment, even if a preload is applied in the direction opposite to the third direction (e.g., from the tilting guide part toward the second member), the position of the tilting guide part 1141 can be easily maintained. Furthermore, since no magnetic material is used, malfunction of other camera actuators (e.g., the second camera actuator) adjacent to the first camera actuator due to magnetic force can be prevented. Furthermore, the camera actuator according to this embodiment can be easily miniaturized by using a lightweight and thin elastic member instead of a magnetic material. Furthermore, the second joint part EP2 can be disposed between the mover 1130 and the first joint part EP1.

[0162] Also, as an embodiment, the first bonding portion EP1 may include a first flat region EP1f and a plurality of first bonding holes EP1h located in the first flat region EP1f.

[0163] The first flat region EP1f may be spaced apart in the second direction (Y-axis direction) from the contact area CA1 where the housing and the first flat region EP1f meet, such that the inner surface of the first flat region EP1f is positioned more inward than the contact area CA1 where the housing and the first flat region EP1f meet.

[0164] Accordingly, the second member 1126 in contact with the first flat region EP1f does not interfere with the connecting portion CP, thereby enabling the camera actuator according to the embodiment to provide accurate X-axis tilt and / or Y-axis tilt.

[0165] In addition, the second bonding portion EP2 may include a second flat region EP2f and a plurality of second bonding holes EP2h located in the second flat region EP2f.

[0166] The second flat region EP2f may be spaced apart in the second direction (Y-axis direction) from the contact region CA2 where the outer surface EP2s contacts the coupling base PP2a of the first member 1131a. In other words, the outer surface EP2d of the second flat region EP2f may be positioned outward from the outer surface of the coupling base PP2a. Accordingly, the first member 1131a contacting the second flat region EP2f may not interfere with the connecting portion CP. This allows the camera actuator according to this embodiment to provide accurate X-axis tilt and / or Y-axis tilt.

[0167] Also, there may be a plurality of first contact holes EP1h and a plurality of second contact holes EP2h.

[0168] The first contact holes EP1h may be spaced apart from one another in a first direction (X-axis direction), and the second contact holes EP2h may be spaced apart from one another in a second direction (Y-axis direction).

[0169] As an example, the length dd3 (eg, diameter) of the second junction hole EP2h in the first direction (X-axis direction) may be smaller than the length dd2 between the plurality of first junction holes EP1h in the first direction (X-axis direction).

[0170] In addition, the second connection holes EP2h may be located between the first connection holes EP1h. For example, the second connection holes EP2h may be arranged on a first imaginary line LX1 that bisects the first connection holes EP1h. Accordingly, in the camera actuator according to the embodiment, the force applied by the elastic member EE may be uniformly applied to the upper and lower parts of the mover.

[0171] When tilting along the Y axis, the amount of current provided to the first coil and the second coil does not change differently depending on whether the coil is positive (+) or negative (-) with respect to the Y axis. That is, the amount of change in the current provided to the first coil and the second coil can be uniform depending on the position of the mover. This facilitates control of tilting along the Y axis. Furthermore, since the elastic restoring force is not generated unevenly in one region in the elastic member EE, the reliability of the elastic member EE can be improved.

[0172] In addition, the second imaginary line LX2 connecting the centers of the first connecting holes EP1h in the first connecting portion EP1 (or the first flat region) and the third imaginary line LX3 bisecting the second connecting holes EP2h may be parallel to each other, so that the force applied by the elastic member EE in the camera actuator according to the embodiment may be uniformly applied to the movement of the mover.

[0173] When tilting along the X axis, the amount of current supplied to the third coil does not change differently depending on whether the current is positive (+) or negative (-) relative to the X axis. That is, the amount of change in the current supplied to the third coil can be uniform depending on the position of the mover. This facilitates control of tilting along the X axis. Furthermore, since the elastic restoring force is not generated unevenly in one region in the elastic member EE, the reliability of the elastic member EE can be improved.

[0174] The second imaginary line LX2 and the third imaginary line LX3 may be parallel to the first direction (X-axis direction).

[0175] For example, the connecting portion CP may include a first connecting portion CP1, a second connecting portion CP2, a third connecting portion CP3, and a fourth connecting portion CP4 located between the first joint portion EP1 and the second joint portion EP2. Furthermore, there may be a plurality of connecting portions CP.

[0176] Specifically, the first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4 may be arranged in order from the first joint portion EP1 to the second joint portion EP2. That is, the first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4 may be arranged in order from the outside to the inside.

[0177] The first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4 may be disposed symmetrically with respect to the second joint portion EP2. The first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4 may be disposed symmetrically with respect to the third virtual line LX3. The first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4 may also be disposed symmetrically with respect to the first virtual line LX1.

[0178] One end of the first connecting portion CP1 may contact the first joining portion EP1, and the first connecting portion CP1 may extend toward the second joining portion EP2. That is, the first connecting portion CP1 may contact the first joining portion EP1 and extend inward.

[0179] The second connecting portion CP2 may be connected to the other end of the first connecting portion CP1, that is, one end of the second connecting portion CP2 may contact the other end of the first connecting portion CP1.

[0180] The second connecting portion CP2 may be bent in a first direction (X-axis direction) relative to the first connecting portion CP1. For example, the second connecting portion CP2 may extend from a lower portion of the first virtual line LX1 toward a lower portion and from an upper portion of the first virtual line LX1 toward an upper portion. As a result, the second connecting portion CP2 may extend at a first inclination θ1 relative to the first connecting portion CP1. For example, the first inclination may be 90 degrees.

[0181] The third connecting portion CP3 may be connected to the other end of the second connecting portion CP2, that is, one end of the third connecting portion CP3 may contact the other end of the second connecting portion CP2.

[0182] The third connecting portion CP3 may be bent in the second direction (Y-axis direction) relative to the second connecting portion CP2. For example, the third connecting portion CP3 may extend from the second connecting portion CP2 toward the second joint portion EP2. The third connecting portion CP3 may extend from the left side to the right side of the third virtual line LX3 and from the right side to the left side of the third virtual line Lx3.

[0183] The third connecting portion CP3 may extend at a second inclination θ2 relative to the second connecting portion CP2, and the second inclination may be the same as the first inclination.

[0184] The fourth connecting portion CP4 may be connected to the other end of the third connecting portion CP3. One end of the fourth connecting portion CP4 may contact the other end of the third connecting portion CP3. The other end of the fourth connecting portion CP4 may be connected to the second joining portion EP2.

[0185] The fourth connecting portion CP4 may extend toward the third virtual line LX3 at a predetermined inclination relative to the third connecting portion CP3, i.e., the fourth connecting portion CP4 may be bent toward the second joint portion EP2 at a predetermined angle relative to the third connecting portion CP3.

[0186] The fourth connecting portion CP4 may extend at a third inclination θ3 relative to the third connecting portion CP3, and the third inclination θ3 may be smaller than the first inclination θ1 and the second inclination θ2.

[0187] In one embodiment, the elastic member EE may have two closed loops symmetrical with respect to the third virtual line LX3 or the second virtual line EP2, each including the first connecting portion EP1, the second connecting portion EP2, and the connecting portion CP. The height between the first connecting portions CP1 may be maintained in the closed loops. That is, the first connecting portions CP1 may have the same separation distance CL1 between them on the first virtual line LX1.

[0188] The height between the second connecting portion CP2 and the third connecting portion CP3 in the closed loop may be greater than the height between the first connecting portion CP1. That is, the distance CL1 between the first connecting portion CP1 and the first virtual line LX1 may be less than the distance CL2 between the third connecting portion CP3 and the first virtual line LX1. In other words, the height (length in the first direction (X-axis direction)) of the second connecting portion CP2 and the third connecting portion CP3 in the closed loop may be increased compared to the first connecting portion CP1.

[0189] Also, the height between the third connecting parts CP3 can be maintained in a closed loop.

[0190] In addition, in the closed loop, the fourth connecting part CP4 may decrease by a certain length as the distance CL3 between the first virtual line LX3 and the third virtual line LX3 approaches the third virtual line LX3. That is, the height of the fourth connecting part CP4 may decrease at a certain slope in the closed loop. As a result, the fourth connecting part CP4 may contact the second joining part EP2.

[0191] Figure 17a is a perspective view of the first camera actuator of the first embodiment before the damper member is applied, Figure 17b is a perspective view of the first camera actuator of the first embodiment after the damper member is applied, Figure 17c is a drawing illustrating the connection between the first member, the second member and the elastic member in the first camera actuator of the first embodiment, Figure 17d is a drawing of another aspect of Figure 17c, Figure 17e is a drawing of yet another aspect of Figure 17c, and Figure 18 is a drawing of Figure 17c with the first member removed.

[0192] 17a and 17b, in an embodiment, the height hc or length in the third direction (Z-axis direction) of the third protrusion 1131ap3 may be different from the height ha, hb, or length in the third direction (Z-axis direction) of the first protrusion 1131ap1 or the second protrusion 1131ap2. For example, the height or length in the third direction (Z-axis direction) of the third protrusion 1131ap3 may be smaller than the height or length in the third direction (Z-axis direction) of the first protrusion 1131ap1. Also, the height or length in the third direction (Z-axis direction) of the third protrusion 1131ap3 may be smaller than the height or length in the third direction (Z-axis direction) of the second protrusion 1131ap2. In this case, the height of each protrusion may be the length in the third direction (Z-axis direction) from the bottom surface of the plurality of protrusions to the top surface of each protrusion. For example, the bottom surface of the plurality of protrusions may be the bottom surface of the third protrusion 1131ap3.

[0193] With this configuration, the third protrusion 1131ap3 can contact at least a part of the elastic member and support the elastic member, and the elastic member can penetrate the region between the first protrusion 1131ap1 and the second protrusion 1131ap2.

[0194] Additionally, the third protrusion 1131ap3 may have a lower surface positioned further inward or lower than the first protrusion 1131ap1 or the second protrusion 1131ap2. In other words, the lower surface of the third protrusion 1131ap3 may be spaced apart in the third direction (Z-axis direction) from the lower surface of the first protrusion 1131ap1 or the second protrusion 1131ap2. The third protrusion 1131ap3 may be coupled to a groove formed on the side surface of the first member 1131a. With this configuration, the third protrusion 1131ap3 can improve the coupling force between the first member 1131a and the holder (or mover). Furthermore, as described above, the third protrusion 1131ap3 can prevent the damper member DP from moving inward.

[0195] Furthermore, as described above, a groove may be formed by a protruding structure in the region between the first protrusion 1131ap1 and the second protrusion 1131ap2. The groove may correspond to the mover groove 1131h described above. Furthermore, as described above, the mover groove 1131h may further have an additional step structure.

[0196] 17c-17d and 18, according to an embodiment, the damper member DP may be disposed between the first protrusion 1131ap1 and the second protrusion 1131ap2. The damper member DP may also be disposed on the third protrusion 1131ap3. Alternatively, the damper member DP may be disposed between the first protrusion 1131ap1 and the second protrusion 1131ap2 and on the third protrusion 1131ap3.

[0197] As a result, the third protrusion 1131ap3 can improve the bonding force between the first member 1131a and the holder, as well as the bonding force between the elastic member and the mover by the damper member DP. In addition, the third protrusion 1131ap3 can suppress the movement of the damper member, thereby improving the reliability of the actuator.

[0198] In the first camera actuator according to the embodiment, the second joint portion EP2 may overlap with the first protrusion portion PR1 in the second axis or the first direction.

[0199] In addition, the apex of the first protrusion PR1 of the base (described later) may be disposed on the middle axis (corresponding to the third virtual line) that bisects the plurality of second connection holes EP2h.

[0200] With this configuration, when the second axis tilt is performed by the first protrusion PR1, the force applied to the tilting guide part by the elastic member EE can be generated uniformly based on the second axis or the first direction.

[0201] The second member 1126 may also include a protruding region 1126a that protrudes rearward. The protruding region 1126a may partially overlap the elastic member EE in the second direction (Y-axis direction). As a result, the connecting portion CP of the elastic member EE may be configured to surround the protruding region 1126a. This configuration allows for easy adjustment of the center of gravity by reducing the thickness.

[0202] In addition, the apex of the second protrusion PR2 may be located on the first imaginary line LX1. That is, the apex of the second protrusion PR2 may be disposed on the first imaginary line LX1 that bisects the first connection hole EP1h. Accordingly, in the camera actuator according to the embodiment, the force applied by the elastic member EE may be uniformly applied to the upper and lower parts of the mover.

[0203] Furthermore, the damper member DP according to the embodiment is disposed within the mover groove 1131h and can contact the mover 1130 or the holder 1131. In other words, the damper member DP can be coupled to the holder 1131 (or the mover) and the elastic member EE. With this configuration, the damper member DP can suppress vibrations during settling time when the mover rotates around its axis. Furthermore, the damper member DP can suppress damage to the spring due to resonance frequencies. This can improve the reliability of the first camera actuator according to the embodiment.

[0204] In particular, at least a portion of the connecting portion CP of the elastic member EE is disposed within the mover groove 1131h so as to be in contact with the damper member DP.

[0205] As described above, at least a portion of the third protrusion 1131ap3 can be in contact with the elastic member EE. For example, the upper surface of the third protrusion 1131ap3 can be in contact with the elastic member EE. This allows the third protrusion 1131ap3 to support at least a portion of the elastic member EE.

[0206] Furthermore, the elastic member EE can penetrate the region between the first protrusion 1131ap1 and the second protrusion 1131ap2. Also, the connecting portion CP can penetrate the damper member DP in the mover groove 1131h or the mover groove 113h. For example, the elastic member EE can penetrate the damper member DP. This can improve the bonding force between the damper member DP, the elastic member EE, and the holder 1131, thereby improving vibration suppression. This can also improve the durability of the first camera actuator.

[0207] 19 is a perspective view of the tilting guide portion according to the embodiment, FIG. 20 is a perspective view of the tilting guide portion in a different direction from FIG. 19, and FIG. 21 is a cross-sectional view of the tilting guide portion taken along line FF' in FIG.

[0208] 19 to 21, the tilting guide part 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. Also, as described above, depending on the structure, the first protrusion and the second protrusion may be formed on opposite surfaces, but the following description will be based on the above content.

[0209] First, the base BS may include a first surface 1141a and a second surface 1141b facing the first surface 1141a. That is, the first surface 1141a and the second surface 1141b may be spaced apart in the third direction (Z-axis direction) and may be outer surfaces facing each other within the tilting guide part 1141 or facing each other.

[0210] The tilting guide portion 1141 may include a first protrusion PR1 extending from one side of the first surface 1141a. According to an embodiment, the first protrusion PR1 may protrude from the first surface 1141a toward the mover. The first protrusion PR1 may be a plurality of first protrusions PR1, including a 1-1 protrusion PR1a and a 1-2 protrusion PR1b.

[0211] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned side by side in the first direction (X-axis direction). In other words, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may overlap in the first direction (X-axis direction). In addition, in this embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be bisected by a virtual line extending in the first direction (X-axis direction).

[0212] Furthermore, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b have a curvature and may be, for example, semispherical.

[0213] In addition, the tilting guide portion 1141 may include a second protrusion PR2 extending from one side on the second surface 1141a. According to an embodiment, the second protrusion PR2 may protrude from the second surface 1141b toward the housing. The second protrusion PR2 may be a plurality of protrusions, and may include a 2-1 protrusion PR2a and a 2-2 protrusion PR2b in this embodiment.

[0214] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned side by side in the second direction (Y-axis direction). That is, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may overlap in the second direction (Y-axis direction). In addition, in this embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be bisected by a virtual line VL2' extending in the second direction (Y-axis direction).

[0215] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may have a curvature, for example, a hemispherical shape, and may contact the first member 1131a at a point spaced apart from the second surface 1141b of the base BS.

[0216] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be located in a region between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. According to this embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be located in the center of the space between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. With this configuration, the actuator according to this embodiment may have the same range of X-axis tilt angles based on the X-axis. In other words, the tilting guide unit 1141 may provide the same range (e.g., positive / negative range) in which the mover can tilt along the X-axis based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b.

[0217] In addition, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be located in a region between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. According to this embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be located in the center of the space between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. With this configuration, the actuator according to this embodiment may have the same range of Y-axis tilt angles based on the Y axis. In other words, based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b, the tilting guide unit 1141 and the mover may provide the same range of Y-axis tilt (e.g., positive / negative range) based on the Y axis.

[0218] The first protrusion PR1 may be located on the first bisector VL1. Here, the first bisector VL1 is a line that bisects the first surface 1141a in the second direction (Y-axis direction). Accordingly, the tilting guide unit 1141 can easily perform X-axis tilt through the first protrusion PR1. Furthermore, since the tilting guide unit 1141 performs X-axis tilt based on the first bisector VL1, a rotational force can be uniformly applied to the tilting guide unit 1141. As a result, X-axis tilt can be performed precisely, and the reliability of the device can be improved.

[0219] Furthermore, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be disposed symmetrically with respect to the first bisector VL1 and the second bisector VL2. Alternatively, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned symmetrically with respect to the first center point C1. With this configuration, the support force exerted by the first protrusion PR1 during X-axis tilting may be equally applied to the upper and lower sides of the second bisector VL2. This may improve the reliability of the tilting guide unit. Here, the second bisector VL2 is a line that bisects the first surface 1141a in the first direction (X-axis direction). The first center point C1 may be the intersection of the first bisector VL1 and the second bisector VL2. Alternatively, it may be a point corresponding to the center of gravity depending on the shape of the tilting guide unit 1141.

[0220] Furthermore, since the tilting guide unit 1141 performs the Y-axis tilt based on the fourth bisector VL2′, a rotational force can be uniformly applied to the tilting guide unit 1141. This allows for precise Y-axis tilt and improves the reliability of the device.

[0221] Furthermore, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be disposed symmetrically on the fourth bisector VL2' with respect to the third bisector VL1'. Alternatively, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be disposed symmetrically with respect to the second center point C1'. With this configuration, the support force supported by the second protrusion PR2 during Y-axis tilting may be equally applied to the upper and lower sides of the tilting guide unit with respect to the fourth bisector VL2'. This may improve the reliability of the tilting guide unit. Here, the third bisector VL1' is a line that bisects the second surface 1141b in the second direction (Y-axis direction). The fourth bisector VL2' is a line that bisects the second surface 1141b in the first direction (X-axis direction). The second center point C1' may be the intersection of the third bisector VL1' and the fourth bisector VL2', or may be a point corresponding to the center of gravity depending on the shape of the tilting guide part 1141.

[0222] The above description of the first protrusion PR1 and the second protrusion PR2 may be applied to the same. The shape of the base BS may be variously changed depending on the weight or fastening structure of the camera actuator.

[0223] Figure 22 is an oblique view of the first camera actuator of the first embodiment with the shielding can and substrate removed, Figure 23 is a cross-sectional view taken along line PP' in Figure 22, and Figure 24 is a cross-sectional view taken along line QQ' in Figure 22.

[0224] 22 to 24, the first coil 1152a may be located on the first housing side portion 1121, and the first magnet 1151a may be located on the first holder outer surface 1131S1 of the holder 1131. As a result, the first coil 1152a and the first magnet 1151a may be located facing each other. The first magnet 1151a may at least partially overlap the first coil 1152a in the second direction (Y-axis direction).

[0225] In addition, the second coil 1152b may be located on the second housing side portion 1122, and the second magnet 1151b may be located on the second holder outer surface 1131S2 of the holder 1131. As a result, the second coil 1152b and the second magnet 1151b may be located facing each other. The second magnet 1151b may at least partially overlap the second coil 1152b in the second direction (Y-axis direction).

[0226] Furthermore, the first coil 1152a and the second coil 1152b may overlap in the second direction (Y-axis direction), and the first magnet 1151a and the second magnet 1151b may overlap in the second direction (Y-axis direction).

[0227] With this configuration, the electromagnetic force applied to the outer surfaces of the holders (the outer surface of the first holder and the outer surface of the second holder) is positioned on an axis parallel to the second direction (the Y-axis direction), allowing for accurate and precise X-axis tilt.

[0228] In addition, the second protrusions PR2a and PR2b of the tilting guide unit 1141 may contact the second member 1126 of the housing 1120. The second protrusion PR2 may be mounted in a second protrusion groove PH2 formed on one side of the second member 1126. When performing X-axis tilt, the second protrusions PR2a and PR2b may serve as a reference axis (or rotation axis) for tilt. This allows the tilting guide unit 1141 and the mover 1130 to move up and down.

[0229] Also, as described above, the first Hall sensor 1153a may be located on the outside for electrical connection and coupling with the substrate part 1154. However, the location is not limited to this.

[0230] Also, the third coil 1152c may be located on the third housing side portion 1123, and the third magnet 1151c may be located on the third holder outer surface 1131S3 of the holder 1131. The third coil 1152c and the third magnet 1151c may at least partially overlap in the first direction (X-axis direction). Accordingly, the strength of the electromagnetic force between the third coil 1152c and the third magnet 1151c may be easily controlled.

[0231] As described above, the tilting guide portion 1141 may be positioned on the fourth holder outer surface 1131S4 of the holder 1131. In addition, the tilting guide portion 1141 may be mounted in the fourth mounting groove 1131S4a of the fourth holder outer surface. As described above, the fourth mounting groove 1131S4a may include the first region AR1, the second region AR2, and the third region AR3.

[0232] A first member 1131a may be disposed in the first area AR1. The outer surface of the first member 1131a may be coupled to the second joint EP2 of the elastic member EE. As a result, the holder 1131 may apply a force RF2' from the holder 1131 to the tilting guide part 1141 in the same direction as the restoring force RF2 generated by the elastic member EE.

[0233] The second member 1126 may be disposed in the second area AR2. The second member 1126 may include a second protrusion groove PH2. The second protrusion groove PH2 may be located on a surface of the second member 1126 facing the holder 1131.

[0234] The restoring force RF2 generated in the elastic member EE can be applied to the second member 1126 through the above-mentioned path. Accordingly, the restoring forces RF2 and RF2′ generated through the elastic member EE can apply pressure to the tilting guide part 1141 disposed between the second member 1126 and the holder 1131.

[0235] 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. The first protrusion PR1 and the second protrusion PR2 may be variously positioned on opposing surfaces of the base BS. However, the following description will be made with reference to the drawings.

[0236] The holder 1131 may have a first protrusion groove PH1 positioned therein. In particular, the first protrusion groove PH1 may be positioned in the fourth mounting groove 1131S4a. The first protrusion portion PR1 may be positioned in the first protrusion groove PH1. This allows at least a portion of the first protrusion portion PR1 to contact the first protrusion groove PH1. As described above, the apex of the first protrusion portion PR1 may be positioned on the bisector of the joining hole of the second joining portion.

[0237] In addition, the maximum diameter of the first protrusion groove PH1 may correspond to the maximum diameter of the first protrusion portion PR1. This can be applied to the second protrusion groove PH2 and the second protrusion portion PR2 as well. That is, the maximum diameter of the second protrusion groove PH2 may correspond to the maximum diameter of the second protrusion portion PR2. In addition, the second protrusion portion PR2 can contact the second protrusion groove PH2. This configuration facilitates second-axis tilt based on the first protrusion portion PR1 and first-axis tilt based on the second protrusion portion PR2, thereby improving the tilt radius.

[0238] In addition, the tilting guide unit 1141 may be arranged alongside the first member 1131a and the second member 1126 in the third direction (Z-axis direction), and the tilting guide unit 1141 may overlap with the optical member 1132 in the first direction (X-axis direction). More specifically, in this embodiment, the first protrusion PR1 may overlap with the optical member 1132 in the first direction (X-axis direction). Furthermore, at least a portion of the first protrusion PR1 may 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 this embodiment, each protrusion, which is the central axis of tilt, may be positioned adjacent to the center of gravity of the mover 1130. As a result, the tilting guide unit may be positioned adjacent to the center of gravity of the mover. As a result, the camera actuator according to the embodiment can minimize the moment value that tilts the mover, and can also minimize the amount of current consumed by the coil section, etc., to tilt the mover, thereby improving power consumption and reliability of the elements.

[0239] As described above, the second Hall sensor 1153b located inside the third coil 1153c senses a change in magnetic flux, thereby enabling position sensing between the third magnet 1151c and the second Hall sensor 1153b.

[0240] FIG. 25 is a diagram illustrating a driving unit according to an embodiment.

[0241] Referring to FIG. 25, as described above, the first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor unit 1153, and a substrate unit 1154.

[0242] As described above, the driving magnet 1151 may include a first magnet 1151a, a second magnet 1151b, and a third magnet 1151c that provide a driving force by electromagnetic force. The first magnet 1151a, the second magnet 1151b, and the third magnet 1151c may be located on the outer surface of the prism holder 1131, respectively.

[0243] Additionally, the drive coil 1152 may include multiple coils. For example, the drive coil 1152 may include a first coil 1152a, a second coil 1152b, and a third coil 1152c.

[0244] The first coil 1152a may be positioned to face the first magnet 1151a. As a result, the first coil 1152a may be positioned in the first housing hole 1121a of the first housing side portion 1121 as described above. In addition, the second coil 1152b may be positioned to face the second magnet 1151b. As a result, the second coil 1152b may be positioned in the second housing hole 1122a of the second housing side portion 1122 as described above.

[0245] The first camera actuator according to the first embodiment controls the rotation of the mover 1130 along the first axis (X-axis direction) or the second axis (Y-axis direction) using the electromagnetic force between the drive magnet 1151 and the drive coil 1152, thereby minimizing the occurrence of descent and tilt phenomena when implementing OIS and providing the best optical characteristics.

[0246] In addition, according to the embodiment, by implementing the OIS through the tilting guide portion 1141 of the rotating portion 1140 disposed between the housing 1120 and the mover 1130, it is possible to eliminate the size limitations of the actuator and provide an ultra-slim and ultra-compact camera actuator and a camera module including the same.

[0247] The substrate portion 1154 can include a first substrate side 1154a, a second substrate side 1154b, and a third substrate side 1154c.

[0248] The first substrate side 1154a and the second substrate side 1154b may be disposed opposite each other, and the third substrate side 1154c may be located between the first substrate side 1154a and the second substrate side 1154b.

[0249] The first substrate side 1154a may be located between the first housing side and the shielding can, the second substrate side 1154b may be located between the second housing side and the shielding can, and the third substrate side 1154c may be located between the third housing side and the shielding can and may be the bottom surface of the substrate portion 1154.

[0250] The first substrate side portion 1154a may be coupled and electrically connected to the first coil 1152a and the first Hall sensor 1153a.

[0251] The second substrate side 1154b may be coupled and electrically connected to the second coil 1152b. It should be understood that the second substrate side 1154b may also be coupled and electrically connected to the first Hall sensor.

[0252] The third substrate side portion 1154c may be coupled and electrically connected to the third coil 1152c and the second Hall sensor 1153b.

[0253] FIG. 26 is a diagram illustrating a driving unit according to a modified example.

[0254] The first drive unit 1150A includes a drive magnet 1151, a drive coil 1152, a Hall sensor unit 1153, a first substrate unit 1154, and a yoke unit 1155.

[0255] As described above, the driving magnet 1151 may include a first magnet 1151a and a second magnet 1151b that provide a driving force by electromagnetic force. The first magnet 1151a and the second magnet 1151b may be located on the outer surface of the holder 1131, respectively.

[0256] Also, as mentioned above, while the dummy member DM is illustrated as being included in the driver 1150A in the drawings, it should be understood that it may be a separate member. That is, since the dummy member DM is not positioned opposite the coil, it does not generate electromagnetic force and is not a driving source that generates a driving force for tilting in a predetermined direction, for example, the Y-axis. However, the dummy member DM may be attached to the outer surface of the holder and positioned symmetrically to the first magnet 1151a in the first or second direction. The dummy member DM may also have the same weight as the first magnet 1151a. Accordingly, the dummy member DM compensates for the weight of the first magnet 1151a in the holder, preventing weight concentration toward the first magnet 1151a when the holder rotates in the second direction (Y-axis direction). In other words, the dummy member DM can improve the accuracy of the Y-axis tilt of the holder 1151. Furthermore, because the dummy member DM prevents the first coil 1152a from being arranged at a position symmetrical in the first and second directions, the current efficiency for Y-axis tilt can be improved. In addition, the overall weight of the first camera actuator according to the first embodiment can be reduced, thereby achieving a lighter weight.

[0257] Additionally, the drive coil 1152 may include multiple coils. For example, the drive coil 1152 may include a first coil 1152a and a second coil 1152b.

[0258] The first coil 1152a may be positioned to face the first magnet 1151a, so that the first coil 1152a may be positioned in the first housing hole 1121a of the first housing side portion 1121 as described above.

[0259] In addition, the weight of the first camera actuator may be reduced by opening the second housing hole 1122a of the second housing side part 1122. The opening may be positioned to face the dummy member DM.

[0260] The first camera actuator according to the first embodiment controls the rotation of the mover 1130 along the first axis (X-axis direction) or the second axis (Y-axis direction) using the electromagnetic force between the drive magnet 1151 and the drive coil 1152, thereby minimizing the occurrence of descent and tilt phenomena when implementing the OIS and providing the best optical characteristics.

[0261] In addition, according to the embodiment, by implementing OIS through the tilting guide part 1141 of the rotating part 1140 disposed between the first housing 1120 and the mover 1130, it is possible to eliminate the size limitation of the actuator and provide an ultra-slim and ultra-compact camera actuator and a camera module including the same.

[0262] The first substrate portion 1154 can include a first substrate side 1154a, a second substrate side 1154b, and a third substrate side 1154c.

[0263] The first substrate side 1154a and the second substrate side 1154b may be disposed opposite each other, and the third substrate side 1154c may be located between the first substrate side 1154a and the second substrate side 1154b.

[0264] The first substrate side 1154a may be located between the first housing side and the shielding can, the second substrate side 1154b may be located between the second housing side and the shielding can, and the third substrate side 1154c may be located between the third housing side and the shielding can and may be the bottom surface of the first substrate part 1154.

[0265] The first substrate side portion 1154a may be coupled and electrically connected to the first coil 1152a and the first Hall sensor 1153a.

[0266] The second substrate side 1154b can be a dummy substrate.

[0267] Furthermore, the third substrate side portion 1154c may be coupled and electrically connected to the second coil 1152b and the second Hall sensor 1153b.

[0268] As a result, in the first camera actuator according to the first embodiment, an electrical connection to the second substrate side portion 1154b is not required, and therefore an electrical path CPH can be formed only between the first substrate side portion 1154a and the third substrate side portion 1154c. This reduces the length of the electrical connection and reduces electrical resistance, thereby improving current efficiency.

[0269] In addition, a driver dR that controls the amount of current injected into the first coil or the second coil may also be disposed on either the first substrate side 1154a or the third substrate side 1154b, thereby minimizing the electrical path and electrical resistance.

[0270] The yoke portion 1155 may include a first yoke 1155a and a second yoke 1155b. The first yoke 1155a is positioned within the first mounting groove and may be coupled to the first magnet 1151a. The second yoke 1155b is positioned within the third mounting groove and may be coupled to the second magnet 1151b. Additionally, a dummy yoke is positioned within the second mounting groove and may be coupled to the dummy member DM. The first yoke 1155a and the second yoke 1155b allow the first magnet 1151a and the second magnet 1151b to be easily mounted in the first mounting groove and the third mounting groove and coupled to the housing.

[0271] Figure 27 is a perspective view of the first camera actuator according to the first embodiment, Figure 28 is a cross-sectional view taken along line SS' in Figure 27, and Figure 29 is an illustrative diagram of the movement of the first camera actuator shown in Figure 28.

[0272] 27 to 29, Y-axis tilt can be performed, that is, OIS can be implemented by rotating in the first direction (X-axis direction).

[0273] As an example, a third magnet 1151c disposed under the holder 1131 generates an electromagnetic force together with a third coil 1152c to tilt or rotate the mover 1130 based on the second direction (Y-axis direction).

[0274] Specifically, the restoring force of the elastic member EE is transmitted to the first member 1131a and may ultimately be transmitted to the tilting guide unit 1141 disposed between the second member 1126 and the holder 1131. Accordingly, the tilting guide unit 1141 may be pressed by the mover 1130 and the housing 1120 due to the repulsive force described above.

[0275] Also, the second protrusion PR2 may be supported by the second member 1126. In this case, as an embodiment, the tilting guide part 1141 may rotate or tilt around the second protrusion PR2 protruding toward the second member 1126 as a reference axis (or rotation axis), i.e., around the second direction (Y-axis direction). In other words, the tilting guide part 1141 may rotate or tilt in the first direction (X-axis direction) around the second protrusion PR2 protruding toward the second member 1126 as a reference axis (or rotation axis).

[0276] For example, OIS may be implemented by rotating the mover 1130 in the X-axis direction by a first angle θ1 (X1->X1a) due to first electromagnetic forces F1A and F1B between the third magnet 1151c disposed in the third mounting groove and the third coil unit 1152c disposed on the side of the third substrate. Alternatively, OIS may be implemented by rotating the mover 1130 in the X-axis direction by a first angle θ1 (X1->X1b) due to first electromagnetic forces F1A and F1B between the third magnet 1151c disposed in the third mounting groove and the third coil unit 1152c disposed on the side of the third substrate. The first angle θ1 may be ±1° to ±3°, but is not limited thereto. In the first camera actuator according to various embodiments below, the electromagnetic force may generate a force in the indicated direction to move the mover, or may generate a force in another direction to move the mover in the indicated direction. That is, the indicated direction of the electromagnetic force refers to the direction of the force generated by the magnet and coil to move the mover.

[0277] Figure 30 is a perspective view of the first camera actuator according to the first embodiment, Figure 31 is a cross-sectional view taken along line RR' in Figure 30, and Figure 32 is an illustrative diagram of the movement of the first camera actuator shown in Figure 31.

[0278] 30 to 32, X-axis tilting can be performed, that is, OIS can be implemented by tilting or rotating the mover 1130 in the Y-axis direction.

[0279] As an example, the first magnet 1151a and the second magnet 1151b arranged in the holder 1131 can form electromagnetic forces with the first coil 1152a and the second coil 1152b, respectively, to tilt or rotate the tilting guide part 1141 and the mover 1130 based on the first direction (X-axis direction).

[0280] Specifically, the restoring force of the elastic member EE is transmitted to the first member 1131a and the holder 1131, and may ultimately be transmitted to the tilting guide unit 1141 disposed between the holder 1131 and the second member 1126. Accordingly, the tilting guide unit 1141 may be pressed by the mover 1130 and the housing 1120 due to the repulsive force described above.

[0281] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be spaced apart in the first direction (X-axis direction) and supported by a first protrusion groove PH1 formed in the fourth mounting groove 1131S4a of the holder 1131. In addition, as an embodiment, the tilting guide part 1141 may rotate or tilt around the first protrusion PR1 protruding toward the holder 1131 (e.g., toward the third direction) as a reference axis (or rotation axis), i.e., the first direction (X-axis direction) as a reference.

[0282] For example, the second electromagnetic forces F2A and F2B between the first and second magnets 1151a and 1151b disposed in the first mounting groove and the first and second coil units 1152a and 1152b disposed on the sides of the first and second substrates rotate the mover 1130 through the second angle θ2 (Y1->Y1a) in the Y-axis direction, thereby realizing OIS. The second electromagnetic forces F2A and F2B between the first and second magnets 1151a and 1151b disposed in the first mounting groove and the first and second coil units 1152a and 1152b disposed on the sides of the first and second substrates rotate the mover 1130 through the second angle θ2 (Y1->Y1b) in the Y-axis direction, thereby realizing OIS. The second angle θ2 may be, but is not limited to, ±1° to ±3°.

[0283] As described above, the electromagnetic force generated by the first and second magnets 1151a and 1151b and the first and second coil units 1152a and 1152b can act in the third direction or the direction opposite to the third direction. For example, the electromagnetic force can be generated in the third direction (Z-axis direction) at the left side of the mover 1130 and act in the direction opposite to the third direction (Z-axis direction) at the right side of the mover 1130. This allows the mover 1130 to rotate based on the first direction or move along the second direction.

[0284] As described above, the second actuator according to the embodiment controls the rotation of the mover 1130 in the first direction (X-axis direction) or the second direction (Y-axis direction) by the electromagnetic force between the drive magnet in the holder and the drive coil disposed in the housing, thereby minimizing the occurrence of descent and tilt phenomena when implementing the OIS and providing the best optical characteristics. Also, as described above, "Y-axis tilt" means rotation or tilt in the first direction (X-axis direction), and "X-axis tilt" means rotation or tilt in the second direction (Y-axis direction).

[0285] FIG. 33 is a perspective view of the first camera actuator according to the second embodiment, FIG. 34 is a drawing illustrating the first member of the first camera actuator according to the second embodiment, FIG. 35 is a top view of the first member of the first camera actuator according to the second embodiment, and FIG. 36 is a side view of the first camera actuator according to the second embodiment.

[0286] 33 to 36, the first camera actuator 1100A according to the second embodiment includes a shielding can, a housing, a mover, a rotating part, an elastic member EE, a driving part, a first member 1131a, a second member 1126, and a damper member. The same applies to the above except for the following description.

[0287] In the first camera actuator 1100A according to the second embodiment, the first member 1131a may include a member protrusion 1131ap disposed adjacent to the connecting portion CP.

[0288] The component protrusion 1131ap may at least partially overlap with the connecting portion CP in the optical axis direction or the third direction (Z-axis direction). At least a portion of the connecting portion CP may have a curvature corresponding to the outer surface of the component protrusion 1131ap. That is, the connecting portion CP and the component protrusion 1131ap may have opposing surfaces or lines corresponding to each other in the overlapping region in the first direction (X-axis direction). The opposing surfaces or lines may have a curvature. This allows the damper member DP1 to be easily coupled to the first member 1131a and the elastic member EE. Furthermore, the component protrusion 1131ap may prevent the damper member DP1 from being coupled to a member other than the first member 1131a and the elastic member EE. Furthermore, due to the curved surface or line, the component protrusion 1131ap may have a region 1131app that protrudes to one side.

[0289] Furthermore, the upper surface 1131apu of the first member 1131a may have a smaller width or length in the first direction (X-axis direction) than the lower surface 1131apb. For example, the width or length W5 of the upper surface 1131apu of the first member 1131a in the first direction (X-axis direction) may be smaller than the width or length W4 of the lower surface 1131apb in the first direction (X-axis direction).

[0290] Furthermore, the upper surface 1131apu of the first member 1131a may have a smaller area than the lower surface 1131apb. With this configuration, a bonding area between the damper member DP1 and the elastic member EE can be easily secured, and the phenomenon of the damper member slipping down can be easily prevented.

[0291] In addition, the height or length d2 of the second coupling portion PP2 in the third direction (Z-axis direction) may be smaller than the width or length d1 of the member protrusion 1131ap in the third direction, which facilitates the formation of preload on the elastic member EE and also allows coupling between the member protrusion 1131ap and the damper member DP1, as described above.

[0292] Furthermore, the width or length d3 in the third direction of the coupling base PP2a may be smaller than the height or length d2 in the third direction (Z-axis direction) of the second coupling portion PP2.

[0293] In addition, the damper member DP1 can be coupled to the member protrusion 1131ap and the connecting portion CP. As a result, the damper member DP1 can suppress vibrations during settling time when the mover rotates around its axis. In addition, the damper member DP1 can suppress damage to the spring due to resonance frequencies. This can improve the reliability of the first camera actuator according to this embodiment.

[0294] In addition, the component protrusion 1131ap may be located between the first coupling portion and the second coupling portion PP2. Specifically, the component protrusion 1131ap may be located in an area spaced apart in the second direction (Y-axis direction) between the first coupling portion and the second coupling portion PP2. For example, the component protrusion 1131ap may be located at a point that bisects the area spaced apart in the second direction (Y-axis direction) between the first coupling portion and the second coupling portion PP2. This may further improve the vibration damping effect of the damper member DP2.

[0295] Also, as an example, the second member 1126 may include a housing protrusion 1126p disposed adjacent to the coupling portion CP.

[0296] At least a portion of the connecting portion CP may correspond to the outer surface of the housing protrusion 1126p. For example, the connecting portion CP and the housing protrusion 1126p may have opposing surfaces or lines that correspond to each other in an overlapping region in the first direction (X-axis direction). The opposing surfaces or lines may have a curvature. This allows the damper member DP2 to be easily coupled to the second member 1126 and the elastic member EE. Furthermore, this may prevent the damper member DP2 from being coupled to a member other than the second member 1126 and the elastic member EE. The curvature allows the housing protrusion 1126p to have a protruding region 1126pp. This allows the damper member DP2 to suppress vibrations during settling time when the mover rotates around its axis. Furthermore, the damper member DP2 may suppress damage to the spring due to a resonant frequency. This may improve the reliability of the first camera actuator according to the embodiment.

[0297] The housing protrusion 1126p may at least partially overlap with the connecting portion CP in the optical axis direction or the third direction (Z-axis direction). This may further improve the coupling force between the housing protrusion 1126p and the connecting portion CP by the damper member DP2. Furthermore, the housing protrusion 1126p may prevent the connecting portion CP from slipping out.

[0298] FIG. 37 is a perspective view of the first camera actuator according to the third embodiment, FIG. 38 is a diagram illustrating the first camera actuator according to the third embodiment, and FIG. 39 is a side view of the first camera actuator according to the third embodiment.

[0299] 37 to 39, the first camera actuator 1100B according to the third embodiment includes a shielding can, a housing, a mover, a rotating part, an elastic member EE, a driving part, a first member 1131a, a second member 1126, and a damper member. The same applies to the above except for the following description.

[0300] As described above, the holder 1131 of the mover 1130 may include a mover protrusion 1131p that protrudes outward or toward the spring from the fourth holder outer surface 1131S4. The holder 1131 of the mover 1130 may have a plurality of protrusions 1131ap. For example, the mover protrusion 1131p may include a first protrusion 1131ap1, a second protrusion 1131ap2, and a third protrusion 1131ap3. As described above, the mover protrusion 1131p allows the damper member DP and the mover or holder 1131 to be easily coupled together.

[0301] In addition, the first member 1131a may include a member protrusion 1131ap disposed adjacent to the connecting portion CP. As described above, the damper member DP1 can be easily coupled to the first member 1131a and the elastic member EE.

[0302] Additionally, the second member 1126 may include a housing protrusion 1126p disposed adjacent to the connecting portion CP, which allows the damper member DP2 to be easily coupled to the second member 1126 and the elastic member EE.

[0303] With this configuration, the elastic member EE can be coupled to the second member (or housing), first member 1131a, and holder (1131 or mover) through the damper members DP, DP1, and DP2. This can further improve the coupling force between the damper members and each member. Also, with this configuration, vibrations during settling time when the mover rotates around its axis can be further suppressed. In addition, the damper members can further suppress damage to the spring due to resonance frequency (vibration at resonance frequency). This can significantly improve the durability or reliability of the first camera actuator according to this embodiment.

[0304] FIG. 40 is a diagram illustrating a first camera actuator according to a modified example.

[0305] 40, the first camera actuator according to the modified example includes a shield can, a housing, a mover, a rotating unit, an elastic member EE, a driving unit, a first member 1131a, a second member 1126, and a damper member DP. The same applies to the above except for the following description.

[0306] First, the elastic member EE may be arranged such that the legs of the connecting portion CP of the elastic member EE are adjacent to each other. In this case, the damper member DP3 may connect the legs of the adjacent connecting portions. That is, the legs of the connecting portion CP may be branches connecting the first connecting portion and the second connecting portion. Furthermore, the above-mentioned legs may be plural. Furthermore, one leg of the connecting portion CP may include the above-mentioned first to fourth connecting portions.

[0307] The damper member DP3 can easily couple with the housing protrusion 1126p or the member protrusion 1131ap of the first member 1131a while coupling the legs of adjacent connecting portions to each other. This allows the damper member DP3 to couple with adjacent legs, or legs and housing protrusions, or legs and member protrusions, or legs and member protrusions and housing protrusions. This can significantly improve the durability or reliability of the first camera actuator according to this embodiment.

[0308] FIG. 41 is a perspective view of the first camera actuator according to the fourth embodiment, and FIG. 42 is an exploded perspective view of the first camera actuator according to the fourth embodiment.

[0309] 41 and 42, the first camera actuator 1100C according to the fourth embodiment includes a first housing 1120, a mover 1130, a rotating part 1140, a first driving part 1150, an elastic member EE, a second member 1126, a first member 1131a, and a damper member. Furthermore, the same contents as above may be applied except for the contents described below.

[0310] The mover 1130 may include a holder 1131 and an optical member 1132 mounted on the holder 1131. The rotating part 1140 may include a tilting guide part 1141. The first driving part 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor part 1153, a first substrate part 1154, and a yoke part 1155.

[0311] First, the first camera actuator 1100C may include a shielding can (not shown). The shielding can (not shown) may be located at the outermost side of the first camera actuator 1100C to surround the rotating unit 1140 and the first driving unit 1150 (described later).

[0312] Such a shielding can (not shown) can block or reduce externally generated electromagnetic waves, i.e., the shielding can (not shown) can reduce the occurrence of malfunctions in the rotating part 1140 or the first driving part 1150.

[0313] The first housing 1120 can be located inside a shielding can (not shown). If there is no shielding can, the first housing 1120 can be located at the outermost side of the first camera actuator.

[0314] Also, the first housing 1120 may be positioned inside a first substrate unit 1154, which will be described later. The first housing 1120 may be fastened to a shielding can (not shown) by being inserted or mated with each other.

[0315] 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, which will be described in detail later.

[0316] The second member 1126 may be disposed in the first housing 1120. The second member 1126 may be disposed between the first member 1131a and the first housing. The second member 1126 may be disposed within the first housing or may be included in the first housing 1120. This will be described later.

[0317] The mover 1130 includes a holder 1131 and an optical member 1132 attached to the holder 1131 .

[0318] The holder 1131 may be attached to the receiving portion 1125 of the first housing 1120. The holder 1131 may include a first holder outer surface to a fourth holder outer surface that correspond to the first housing side 1121, the second housing side 1122, the third housing side 1123, and the second member 1126, respectively. For example, the first holder outer surface to the fourth holder outer surface may correspond to or face the inner surfaces of the first housing side 1121, the second housing side 1122, the third housing side 1123, and the second member 1126, respectively.

[0319] In addition, the holder 1131 may include a first member 1131a disposed in the fourth mounting groove, which will be described in detail later.

[0320] The optical element 1132 may be mounted on the holder 1131. To this end, the holder 1131 may have a mounting surface, which may be formed by a receiving groove. A bonding material may be applied to the mounting surface. This allows the optical element 1132 to be coupled to the holder 1131.

[0321] In one embodiment, the optical member 1132 may be a mirror or a prism. While the following description will be based on a prism, the optical member 1132 may be formed of a plurality of lenses, as in the previous embodiment. Alternatively, the optical member 1132 may be formed of a plurality of lenses and a prism or mirror. The optical member 1132 may also include a reflecting portion disposed therein. However, the optical member 1132 is not limited thereto.

[0322] In addition, the optical member 1132 can reflect light reflected from the outside (e.g., an object) back into the camera module. In other words, the optical member 1132 can change the path of the reflected light to improve the spatial limitations of the first and second camera actuators. It should be understood that this allows the camera module to minimize its thickness while also extending the light path to provide a high range of magnification.

[0323] The first member 1131a may be coupled to the holder 1131. The first member 1131a may be disposed on the outside of the holder 1131 and inside the housing. The first member 1131a may be mounted in an additional groove located in an area other than the fourth mounting groove on the outer surface of the fourth holder in the holder 1131. In this way, the first member 1131a is coupled to the holder 1131, and at least a portion of the second member 1126 may be positioned between the first member 1131a and the holder 1131. For example, at least a portion of the second member 1126 may pass through a space formed between the first member 1131a and the holder 1131.

[0324] Also, the first member 1131a may have a structure separate from the holder 1131. This structure allows for easy assembly of the first camera actuator, as will be described later. Alternatively, the first member 1131a may be formed integrally with the holder 1131, but the following description will be given assuming a separate structure.

[0325] The rotating part 1140 may include a tilting guide part 1141. Additionally, the rotating part 1140 may include magnetic materials having the same polarity to apply pressure to the tilting guide part 1141.

[0326] The tilting guide portion 1141 can be coupled to the mover 1130 and the first housing 1120 described above. Specifically, the tilting guide portion 1141 can be disposed between the holder 1131 and the second member 1126. As a result, the tilting guide portion 1141 can be coupled to the mover 1130 of the holder 1131 and the first housing 1120. However, unlike the above, in this embodiment the tilting guide portion 1141 can be disposed between the second member 1126 and the holder 1131. Specifically, the tilting guide portion 1141 can be located between the second member 1126 and the fourth mounting groove of the holder 1131.

[0327] In the third direction (Z-axis direction), the first member 1131a, the second member 1126, the tilting guide unit 1141, and the holder 1131 may be arranged in this order. In addition, the tilting guide unit 1141 may be arranged adjacent to the optical axis. This allows the actuator according to this embodiment to easily change the optical path by tilting along the first and second axes, which will be described later.

[0328] The tilting guide portion 1141 may include a first protrusion spaced apart in a first direction (X-axis direction) and a second protrusion spaced apart in a second direction (Y-axis direction). The first protrusion and the second protrusion may protrude in opposite directions, which will be described in detail later.

[0329] The first driving part 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor part 1153, a first substrate part 1154, and a yoke part 1155. The above description can be applied to this. Therefore, the dummy member DM can be substituted for the second magnet, and the lower magnet can correspond to the third magnet.

[0330] In addition, the elastic member EE can be positioned between the mover 1130 and a fixed member (e.g., the first housing 1120 or the second member 1126). In addition, the tilting guide part 1141 can be positioned between the fixed member and the mover. The elastic member EE can pull the mover 1130 toward the fixed member, thereby bringing the tilting guide part 1141 into close contact with the fixed member and the mover. The elastic member EE can also bring the tilting guide part 1141 into close contact with the mover 1130. In other words, the elastic member EE can pull the mover 1130 toward the fixed member, the housing 1220, or the second member 1126.

[0331] The elastic member EE may be disposed between the tilting guide portion 1141 and the housing 1120. In particular, the elastic member EE may be disposed in the order of the tilting guide portion 1141, the second member 1126, and the first member 1131a. That is, in the third direction, the second member 1126, the elastic member EE, the first member 1131a, the tilting guide portion 1141, and the mover 1130 may be disposed in this order.

[0332] The elastic member EE may be made of an elastic material and may be disposed between the second member 1126 and the first member 1131a to connect the second member 1126 and the first member 1131a to each other. The elastic member EE may provide elastic force to the first member 1131a and the holder 1131 connected thereto, based on the second member 1126 fixed to the housing 1120.

[0333] As a result, the elastic member EE is coupled to the housing 1120 and the mover 1130 between the housing 1120 and the mover 1130, and can apply pressure to the tilting guide portion 1141 through the mover 1130. As a result, the mover 1130 can be tilted in the X-axis and / or Y-axis through the tilting guide portion 1141.

[0334] The portion of the elastic member EE that contacts the second member 1126 and the portion that contacts the first member 1131a (or holder 1131) and housing 1120 may be spaced apart from each other in the third direction (Z-axis direction). The distance between these contacting portions (first and second joints, described below) allows the elastic member EE to have a preload. This preload may be transmitted to the tilting guide portion 1141 through the mover 1130 and to the second member 1126 through the tilting guide portion 1141. As a result, the tilting guide portion 1141, which is disposed between the mover 1130 and the second member 1126, may be compressed by the elastic member EE. In other words, the tilting guide portion 1141 may maintain a force between the mover 1130 and the second member 1126. As a result, the tilting guide portion 1141 may not come off and may maintain its position between the mover 1130 and the housing 1120 even during X-axis or Y-axis tilting. Furthermore, when no current is injected (e.g., when the current is 0) after current is injected into the first and second coils for X-axis or Y-axis tilt, the mover 1130 can move to its initial position due to the preload or restoring force described above. That is, when a force greater than the preload (electromagnetic force, described below) is generated, the mover 1130 performs X / Y-axis tilt, and when a force smaller than the preload is generated, the mover 1130 can return to its initial position or maintain its position.

[0335] Furthermore, the damper member may be coupled to at least one of the housing 1120 (or second member) and the mover (or first member) with an elastic member.

[0336] Figure 43a is a perspective view of the first housing of the first camera actuator according to the fourth embodiment, Figure 43b is a perspective view in a different direction from Figure 43a, and Figure 43c is a front view of the first housing of the first camera actuator according to the fourth embodiment.

[0337] 43a to 43c, the first housing 1120 according to the embodiment may include a first housing side portion 1121 to a fourth housing side portion 1124. In addition, the second member 1126 may be combined with the first housing 1120 to form a single unit. Therefore, the second member 1126 may be included in the first housing 1120. That is, the first housing 1120 may be combined with the second member 1126 to form a single unit. Alternatively, the first housing 1120 may include the second member 1126.

[0338] The first housing side 1121 and the second housing side 1122 may be arranged to face each other, and the third housing side 1123 and the fourth housing side 1124 may be arranged to face each other.

[0339] And, 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.

[0340] The third housing side 1123 and the fourth housing side 1124 may be in contact with the first housing side 1121, the second housing side 1122, and the fourth housing side 1124. The third housing side 1123 may be the bottom surface of the first housing 1120. The fourth housing side 1124 may be the top surface of the first housing 1120. The above-mentioned description regarding directions may also be applied.

[0341] The first housing side portion 1121 may include a first housing hole 1121a, in which a first coil (to be described later) may be located.

[0342] The second housing side portion 1122 may include a second housing hole 1122a, which may be positioned symmetrically with the first housing hole 1121a in the first or third direction. The second housing hole 1122a may be an empty space.

[0343] Also, the first housing side 1121 and the second housing side 1122 may be side surfaces of the first housing 1120 .

[0344] Additionally, the third housing side portion 1123 may include a third housing hole 1123a.

[0345] The third housing hole 1123a may accommodate a second coil (if a dummy member is present) or a third coil (if a dummy member is not present), which will be described later.

[0346] A second member 1126 may be attached between the first housing side portion 1121 to the fourth housing side portion 1124. Accordingly, the second member 1126 may be positioned on the third housing side portion 1123. For example, the second member 1126 may be positioned on one side. The second member 1126 and the holder may be positioned sequentially based on the third direction.

[0347] The fourth housing side 1124 is disposed between the first housing side 1121 and the second housing side 1122 and can contact the first housing side 1121, the second housing side 1122 and the third housing side 1123.

[0348] The fourth housing side portion 1124 may also include a fourth housing hole 1124a. The fourth housing hole 1124a may be located above the optical member, so that light may pass through the fourth housing hole 1124a and enter the optical member.

[0349] The first housing 1120 may also include a receiving portion 1125 formed by the first housing side portion 1121 to the fourth housing side portion 1124. The receiving portion 1125 may accommodate components such as a second member 1126, a first member 1131a, a mover 1130, and an elastic member EE.

[0350] The first housing 1120 may further include a fifth housing side portion facing the second member 1126. The fifth housing side portion may be disposed between the first housing side portion 1121 and the second housing side portion 1122 and may contact the first housing side portion 1121, the second housing side portion 1122, and the third housing side portion 1123. The fifth housing side portion may include an opening region to provide a path for light reflected from the optical member 1132. The fifth housing side portion may also include protrusions or grooves to facilitate easy connection with other adjacent camera actuators. This configuration provides a light path and improves the connection strength between the fifth housing side portion having the opening providing the light path and other components, thereby suppressing movement of the opening due to spacing, etc., and minimizing changes in the light path.

[0351] Also, as described above, the second member 1126 may be coupled to the first housing 1120 and may be included in the first housing 1120. That is, the second member 1126 may be disposed in the first housing 1120. Alternatively, the second member 1126 may be located within the first housing 1120.

[0352] The second member 1126 can be coupled to the first housing 1120. For example, the second member 1126 can be located between the first housing side 1121 and the second housing side 1122. The second member 1126 can also be located between the third housing side 1123 and the fourth housing side 1124.

[0353] The second member 1126 is located on the third housing side 1123 and can contact the third housing side within the first housing side.

[0354] A first stopper 1121b may be located on the inner surface of the first housing side portion 1121. A second stopper 1122b may be located on the inner surface of the second housing side portion 1122.

[0355] The first stopper 1121b and the second stopper 1122b may be positioned symmetrically with respect to the first direction (X-axis direction). The first stopper 1121b and the second stopper 1122b may extend in the first direction (X-axis direction). With this configuration, even if the second member 1126 moves into the first housing 1120, the position may be maintained by the first stopper 1121b and the second stopper 1122b. In other words, the first stopper 1121b and the second stopper 1122b may maintain the second member 1126 positioned on one side of the first housing 1120.

[0356] Furthermore, the first stopper 1121b and the second stopper 1122b fix the position of the second member 1126 and fix the position of the tilting guide between the second member 1126 and the mover, thereby eliminating error-causing factors such as vibration. As a result, the first camera actuator according to the fourth embodiment can accurately perform X-axis tilt and Y-axis tilt.

[0357] In addition, a distance L2 between the first stopper 1121b and the second stopper 1122b in the second direction (Y-axis direction) may be smaller than a maximum length L1 of the second member 1126 in the second direction (Y-axis direction). As a result, the second member 1126 can be assembled to or inserted into the side of the first housing 1120 and coupled to the first housing 1120. In addition, the housing 1120 may include a receiving portion 1125 formed by the first housing side portion 1121 to the fourth housing side portion 1124. The second member 1126, the first member 1131a, the tilting guide portion 1141, the mover 1130, and the elastic member EE may be positioned in the receiving portion 1125 as components.

[0358] The second member 1126 may be disposed in the housing 1120. The second member 1126 may be disposed or included in the first housing. The second member 1126 may be coupled to the housing 1120. As an example, the second member 1126 may be coupled to the third housing side portion 1123 by being fitted into or at least partially penetrating a housing groove 1123b' formed in the third housing side portion 1123. In this way, the second member 1126 may be coupled to the housing 1120 and maintain fixation between the mover 1130 and the tilting guide portion 1141, which will be described later.

[0359] The second member 1126 may also include a first coupling portion PP1 disposed in an area adjacent to the first housing side portion 1121 and the second housing side portion 1121. The first coupling portion PP1 may be formed of a protrusion. The first coupling portion PP1 may be coupled to the first connecting portion EP1. As will be described later, the first coupling portion PP1 may be inserted into a first connecting hole of the first connecting portion EP1.

[0360] The second member 1126 also includes a second protrusion groove in which the second protrusion of the tilting guide unit is mounted. The second protrusion groove PH2 may be located on an inner surface 1126s1 of the second member 1126. Accordingly, the protrusion (e.g., the second protrusion) of the tilting guide unit of the second member 1126 is disposed adjacent to the prism within the fourth mounting groove, so that the protrusion, which is the reference axis of tilt, is disposed close to the center of gravity of the mover 1130. As a result, when the holder is tilted, the moment that moves the mover 1130 due to tilting can be minimized. As a result, the consumption of current driving the coil is also minimized, thereby reducing power consumption of the camera actuator.

[0361] The second member 1126 may include through holes 1126a and 1126b. The through holes may be a first through hole 1126a and a second through hole 1126b.

[0362] The first and second extensions of the first member (described later) can pass through the first through-hole 1126a and the second through-hole 1126b, respectively, to couple the first member and the second member together. In other words, the first housing and the mover can be coupled together.

[0363] A second protrusion groove PH2 may be positioned between the first through hole 1126a and the second through hole 1126b. This configuration improves the coupling force between the tilting guide part 1141 and the second member 1126, thereby preventing a decrease in tilt accuracy caused by the tilting guide part 1141 moving within the first housing.

[0364] Additionally, a second groove gr2 may be located on the outer surface 1126s2 of the second member 1126. A magnetic body may be attached to the second groove gr2. The outer surface 1126s2 of the second member 1126 may face the inner surface of the first member or the member base. The magnetic body attached to the first member and the magnetic body of the second member 1126 may face each other and have the same polarity. This may generate a repulsive force. Furthermore, because the second member 1126 presses the tilting guide member or the holder inward with the repulsive force, the mover may be spaced a predetermined distance from the third housing side within the first housing even without applying current to the coil. In other words, the coupling force between the mover, the housing, and the tilting guide member may be maintained.

[0365] Furthermore, when the second member 1126 is formed integrally with the first housing 1120, the bonding strength between the second member 1126 and the first housing 1120 can be improved, thereby improving the reliability of the camera actuator. Furthermore, when the second member 1126 and the first housing 1120 are formed separately, the ease of assembly and manufacturing of the second member 1126 and the first housing 1120 can be improved.

[0366] As an example, the second member 1126 may include the first through hole 1126a and the second through hole 1126b as described above, and the first through hole 1126a and the second through hole 1126b may be arranged side by side in the second direction (Y-axis direction) and overlap each other.

[0367] The second member 1126 may include an upper member UA located above the first through-hole 1126a and the second through-hole 1126b, and a lower member BA located below the first through-hole 1126a and the second through-hole 1126b. Thus, the first through-hole 1126a and the second through-hole 1126b may be located in the middle of the second member 1126. That is, the second member 1126 may include a connecting member MA located on each side of the first through-hole 1126a and the second through-hole 1126b. That is, the upper member UA and the lower member BA may be connected through the connecting member MA. The lower members BA may be multiple in number to form the first and second through-holes, and may be spaced apart from each other in the second direction (Y-axis direction).

[0368] Therefore, the second member 1126 may have improved rigidity due to the upper member UA. For example, the rigidity of the second member 1126 may be increased compared to when the upper member UA is not present. For example, in this embodiment, the unit of rigidity may be N / μm. Accordingly, the reliability of the first camera actuator according to the fourth embodiment may be improved.

[0369] Furthermore, a first coupling groove 1126k may be located on the outer surface 1126s2 of the second member 1126. The first coupling groove 1126k may be located on the edge of the outer surface 1126s2 of the second member 1126. In particular, the first coupling groove 1126k may be located at an end (e.g., the rightmost end) of the outer surface 1126s2 of the second member 1126 and may be located adjacent to the first housing side portion 1121.

[0370] The first coupling groove 1126k may be positioned to correspond to the second coupling grooves 1121m and 1122m of the first housing side portion 1121 and the second housing side portion 1122. As an example, the first coupling groove 1126k may be positioned to face the second coupling grooves 1121m and 1122m of the first housing side portion 1121 and the second housing side portion 1122. The second coupling grooves 1121m and 1122m may be positioned on a side surface adjacent to and flush with the outer surface 1126s2 of the second member 1126 described above.

[0371] In an embodiment, the first coupling groove 1126k and the second coupling groove 1121m, 1122m may be plural, and the plural first coupling grooves 1126k and the plural second coupling grooves 1121m, 1122m may be positioned symmetrically in the first direction or the second direction.

[0372] A coupling material may be applied to the first coupling groove 1126k and the second coupling grooves 1121m and 1122m. That is, a bonding material may be applied between the first housing side (or the second housing side) and the second member 1126 to improve the bonding strength between the housing 1120 and the second member 1126. Such a bonding material may include, but is not limited to, epoxy.

[0373] The second member 1126 may further include a first protrusion and a second protrusion. The first protrusion may contact the first housing side, and the second protrusion may contact the second housing side. The first protrusion may extend in the third direction (Z-axis direction) from one end of the outer surface 1126s2 of the second member. The second protrusion may extend in the third direction (Z-axis direction) from the other end of the outer surface 1126s2 of the second member. That is, the first protrusion and the second protrusion may extend toward the holder.

[0374] The position of the first protrusion can be maintained by the first stopper 1121b, and the position of the second protrusion can be maintained by the second stopper 1122b, thereby improving the reliability of the camera actuator according to this embodiment.

[0375] Figure 44a is an oblique view of the holder of the first camera actuator in the fourth embodiment, Figure 44b is a bottom view of the holder of the first camera actuator in the fourth embodiment, Figure 44c is a front view of the holder of the first camera actuator in the fourth embodiment, Figure 44d is a rear view of the first member of the first camera actuator in the fourth embodiment, and Figure 44e is a bottom view of the first member of the first camera actuator in the fourth embodiment.

[0376] 44a to 44e, the holder 1131 may include a mounting surface 1131k on which the optical member 1132 is mounted. The mounting surface 1131k may be an inclined surface. The holder 1131 may also include a step on the upper part of the mounting surface 1131k. The step on the holder 1131 may be coupled with a protrusion (not shown) of the optical member 1132.

[0377] The holder 1131 may include a plurality of outer surfaces, for example, a first holder outer surface 1131S1, a second holder outer surface 1131S2, a third holder outer surface 1131S3, and a fourth holder outer surface 1131S4.

[0378] The first holder outer surface 1131S1 may be positioned to face the second holder outer surface 1131S2. That is, the first holder outer surface 1131S1 may be disposed symmetrically with the second holder outer surface 1131S2 with respect to the first direction (X-axis direction). The first holder outer surface 1131S1 may be the first side surface. And the second holder outer surface 1131S2, which will be described later, may be the second side surface.

[0379] The first holder outer surface 1131S1 may be positioned to correspond to the first housing side. That is, the first holder outer surface 1131S1 may be positioned to face the first housing side. And the second holder outer surface 1131S2 may be positioned to correspond to the second housing side. That is, the second holder outer surface 1131S2 may be positioned to face the second housing side.

[0380] The first holder outer surface 1131S1 may include a first mounting groove 1131S1a, and the second holder outer surface 1131S2 may include a second mounting groove 1131S2a. The first mounting groove 1131S1a and the second mounting groove 1131S2a may be disposed symmetrically with respect to each other with respect to the first direction (X-axis direction).

[0381] The first mounting groove 1131S1a and the second mounting groove 1131S2a may be arranged to overlap in the second direction (Y-axis direction). The first magnet 1151a may be arranged in the first mounting groove 1131S1a, and the dummy member DM may be arranged in the second mounting groove 1131S2a. The first magnet 1151a and the dummy member DM may also be arranged symmetrically with respect to the first direction (X-axis direction). It should be understood that the first and second magnets may be coupled to the housing via a yoke or a connecting member.

[0382] As described above, the electromagnetic force induced by the first magnet in the first mounting groove 1131S1a may be applied to the holder 1131.

[0383] According to this embodiment, the first magnet in the first mounting groove 1131S1a and the dummy member DM in the second mounting groove 1131S2a may have the same weight. Accordingly, even if the holder 1131 tilts along the X axis due to the electromagnetic force generated by the first magnet, it may be possible to prevent the holder 1131 from tilting to one side due to an imbalance in weight. This allows for accurate X-axis tilting.

[0384] The third holder outer surface 1131S3 may be in contact with the first holder outer surface 1131S1 and the second holder outer surface 1131S2 and may be an outer surface extending in the second direction (Y-axis direction) from one side of the first holder outer surface 1131S1 and the second holder outer surface 1131S2. The third holder outer surface 1131S3 may be located between the first holder outer surface 1131S1 and the second holder outer surface 1131S2. The third holder outer surface 1131S3 may be the bottom surface of the holder 1131. That is, the third holder outer surface 1131S3 may be located to face the third housing side.

[0385] The third holder outer surface 1131S3 may include a third mounting groove 1131S3a. The second magnet 1151b may be disposed in the third mounting groove 1131S3a. The third holder outer surface 1131S3 may be positioned to face the third housing side portion 1123.

[0386] Also, the third housing hole 1123a may at least partially overlap with the third mounting groove 1131S3a in the first direction (X-axis direction). Accordingly, the second magnet 1151b in the third mounting groove 1131S3a and the second coil 1152c in the third housing hole 1123a may be positioned to face each other. The second magnet 1151b and the second coil 1152c may generate an electromagnetic force, thereby tilting the first camera actuator in the Y-axis direction.

[0387] Also, X-axis tilt is achieved by the first magnet, and Y-axis tilt can only be achieved by the second magnet.

[0388] In some embodiments, the third mounting groove 1131S3a may be the same as the first mounting groove 1131S1a or the second mounting groove 1131S2a. This configuration allows the Y-axis tilt to be controlled by current, just like the X-axis tilt.

[0389] The fourth holder outer surface 1131S4 may be an outer surface that contacts the first holder outer surface 1131S1 and the second holder outer surface 1131S2 and extends in the first direction (X-axis direction) from the first holder outer surface 1131S1 and the second holder outer surface 1131S2. The fourth holder outer surface 1131S4 may be located between the first holder outer surface 1131S1 and the second holder outer surface 1131S2. That is, the fourth holder outer surface 1131S4 may be located to face the second member.

[0390] A first member 1131a is disposed in the first region AR1, and the first member 1131a may include a first groove gr1. As an example, the first member 1131a may include a first groove gr1 formed on the inner surface 1131aas. As described above, a magnetic body may be disposed in the first groove gr1.

[0391] As described above, the second member may be disposed in the second region AR2. The first groove gr1 may be positioned to face the second groove gr2. For example, the first groove gr1 may at least partially overlap the second groove gr2 in the third direction (Z-axis direction). As described above, the repulsive force generated by the magnetic material disposed in the first and second grooves may be transmitted to the fourth mounting groove 1131S4a of the holder 1131 through the first member. As a result, the holder may apply a force to the tilting guide unit in the same direction as the repulsive force generated by the magnetic material. This applied force, combined with the preload of the elastic member, may firmly maintain the connection between the mover, the housing, and the tilting guide unit. This may improve the reliability of the camera module against external impacts, etc.

[0392] The second member may include a second groove gr2 facing the first groove gr1 formed on the outer surface. The second member may also include a second protrusion groove formed on the inner surface, as described above. A second protrusion may be mounted in the second protrusion groove. The tilting guide member 1141 may be disposed in the third region AR3. The first protrusion groove PH1 may be positioned in the fourth mounting groove 1131S4a. The first protrusion of the tilting guide member 1141 may be received in the first protrusion groove PH1. This allows the first protrusion portion PR1 to contact the first protrusion groove. The maximum diameter of the first protrusion groove PH1 may correspond to the maximum diameter of the first protrusion portion PR1. This also applies to the second protrusion groove and the second protrusion portion PR2. That is, the maximum diameter of the second protrusion groove may correspond to the maximum diameter of the second protrusion portion PR2. This allows the second protrusion to contact the second protrusion groove. With this configuration, the first axis tilt based on the first protrusion and the second axis tilt based on the second protrusion can be easily performed, and the tilt radius can be improved.

[0393] In addition, as an embodiment, the first protrusion groove PH1 may be plural. For example, either the first protrusion groove PH1 or the second protrusion groove PH2 may include a 1-1 protrusion groove PH1a and a 1-2 protrusion groove PH1b. Hereinafter, the first protrusion groove PH1 will be described as including a 1-1 protrusion groove PH1a and a 1-2 protrusion groove PH1b. The following description also applies to the second protrusion groove PH2. For example, the second protrusion groove PH2 includes a 2-1 protrusion groove and a 2-2 protrusion groove, and the description of the 1-1 protrusion groove applies to the 2-1 protrusion groove, and the description of the 1-2 protrusion groove applies to the 2-2 protrusion groove.

[0394] The first-first protruding groove PH1a and the first-second protruding groove PH1b may be arranged side by side in the first direction (x-axis direction). The first-first protruding groove PH1a and the first-second protruding groove PH1b may have the same maximum width.

[0395] The plurality of first protruding grooves PH1 may have different numbers of inclined surfaces. For example, the first protruding groove PH1 may include a groove bottom surface and an inclined surface. In this case, the plurality of protruding grooves may have different numbers of inclined surfaces. The width of the bottom surface may also differ among the protruding grooves. This can be applied to the first and second protruding grooves described above.

[0396] For example, the first-first protrusion groove PH1a may include a first groove bottom surface LS1 and a first inclined surface CS1, and the second-second protrusion groove PH1b may include a second groove bottom surface LS2 and a second inclined surface CS2.

[0397] In this case, the first groove bottom surface LS1 and the second groove bottom surface LS2 may have different widths, and the width of the first groove bottom surface LS1 may be smaller than the width of the second groove bottom surface LS2.

[0398] Furthermore, the number of first inclined surfaces CS1 in contact with the first groove bottom surface LS1 may be different from the number of second inclined surfaces CS2, for example, the number of first inclined surfaces CS1 may be greater than the number of second inclined surfaces CS2.

[0399] This configuration can easily compensate for the assembly tolerance of the first protrusion mounted in the first protrusion groove PH1. For example, since the number of first inclined surfaces CS1 is greater than the number of second inclined surfaces CS2, the first protrusion comes into contact with more inclined surfaces, and the position of the first protrusion in the first-1 protrusion groove PH1a can be more accurately maintained.

[0400] In contrast to this, the number of inclined surfaces in contact with the first protrusion in the first-second protrusion groove PH1b is smaller than that in the first-first protrusion groove PH1b, so that the position of the first protrusion can be easily adjusted.

[0401] In an embodiment, the second inclined surfaces CS2 may be spaced apart from one another in the second direction (Y-axis direction). The second groove bottom surface LS2 extends in the first direction (X-axis direction), allowing the first protrusion to easily move in 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 in the first-second protrusion groove PH1b.

[0402] In addition, the first member 1131a may be attached to the outer surface 1131S4 of the fourth holder. A second coupling portion PP2 may be located on the outer surface of the first member 1131a (e.g., the surface opposite to the surface facing the first member). The second coupling portion PP2 may include a coupling base PP2a and a second coupling protrusion PP2b. The second coupling portion PP2 may be disposed to overlap the first protrusion (described later) in the first direction (X-axis direction).

[0403] The second coupling protrusions PP2b may be spaced apart in the second direction (Y-axis direction), and the bisectors between the second coupling protrusions PP2b may all be positioned on the apex of the first protrusion in the first direction (X-axis direction).

[0404] The first member 1131a may also include a first groove gr1. In other words, the first groove gr1 may be located on the inner surface of the member base portion 1131aa. The magnetic body described above may be mounted in the first groove gr1. The number of first grooves gr1 may also be multiple depending on the number of magnetic bodies. That is, the number of first grooves gr1 may correspond to the number of magnetic bodies.

[0405] Additionally, the first member 1131a may include a member base portion 1131aa, a first extension portion 1131ab, and a second extension portion 1131ac.

[0406] The member base portion 1131aa may be located at the outermost position of the first camera actuator. The member base portion 1131aa may be located outside the second member. That is, the second member may be located between the member base portion 1131aa and the tilting guide portion.

[0407] The first extension portion 1131ab may extend in the third direction (Z-axis direction) from the edge of the component base portion 1131aa. That is, the first extension portion 1131ab may extend from the component base portion 1131aa toward the holder 1131. The same may be true for the second extension portion 1131ac. Also, the second extension portion 1131ac may extend in the third direction (Z-axis direction) from the edge of the component base portion 1131aa. As an example, the first extension portion 1131ab and the second extension portion 1131ac may be located at the edge of the component base portion 1131aa in the second direction (Y-axis direction). And, the first extension portion 1131ab and the second extension portion 1131ac may be disposed between the upper component and the lower component.

[0408] Therefore, the first member 1131a may have a groove formed by the first extension portion 1131ab and the second extension portion 1131ac. That is, the groove may be located between the first extension portion 1131ab and the second extension portion 1131ac. Therefore, the first extension portion 1131ab and the second extension portion 1131ac may be connected to each other only by the member base portion 1131aa.

[0409] The first member 1131a is coupled to the holder and moves during X-axis tilt and Y-axis tilt, and the rigidity of the first member 1131a may be greater than the rigidity of the second member.

[0410] Furthermore, as described above, the second member according to the embodiment may have an upper member and a lower member, thereby increasing its rigidity. This configuration may reduce the difference in rigidity between the first member and the second member. Therefore, when the first member 1131a and the holder 1131 coupled to the first member 1131a are both tilted along the X-axis or Y-axis, the first member 1131a may come into contact with the second member due to a reduced proximity distance between the first member and the second member. As a result, the second member may have improved rigidity as described above, making it easier to operate as a stopper. This may improve the reliability of the camera actuator.

[0411] Furthermore, the difference in stiffness between the second member and the first member can be reduced, minimizing damage caused by contact during tilting, thereby improving the reliability of the camera actuator.

[0412] In addition, the first extension portion 1131ab may be spaced apart from the second extension portion 1131ac in the second direction (Y-axis direction) to form a spaced apart, in which a second member and a tilting guide may be installed.

[0413] In addition, the first extension 1131ab and the second extension 1131ac may have the same length in the third direction (Z-axis direction), which allows for a well-balanced coupling force and weight, and allows the holder to be tilted accurately without leaning to one side.

[0414] The first extension portion 1131ab and the second extension portion 1131ac may be coupled to the holder. It should be understood that coupling may be achieved through a joining member other than the protrusion and groove structure described above. As an example, the first extension portion 1131ab and the second extension portion 1131ac may include a third coupling groove 1131k formed in the third direction (Z-axis direction). In addition, a coupling protrusion 1131m may be located in an area of ​​the fourth mounting groove 1131S4a where the first extension portion 1131ab and the second extension portion 1131ac overlap in the third direction (Z-axis direction). The coupling protrusion 1131m may be located corresponding to the third coupling groove 1131k.

[0415] For example, a bonding material such as epoxy may be applied to the third coupling groove 1131k. Then, the coupling protrusion 1131m may be inserted into the third coupling groove 1131k of the first extension portion 1131ab and the second extension portion 1131ac. With this configuration, the first member 1131a and the holder 1131 may be coupled to each other. Furthermore, with this coupling, the repulsive force applied to the first member 1131a may be transmitted to the holder 1131. However, as mentioned above, it should be understood that the positions of the protrusion and groove structures may be interchangeable.

[0416] In addition, as an embodiment, the holder 1131 of the mover 1130 or the first member 1131a coupled to the holder 1131 may include a mover protrusion 1131p protruding from the fourth holder outer surface 1131S4 or the outer surface of the first member toward the outside or the spring.

[0417] The mover protrusion 1131ap may be composed of a plurality of protrusions. For example, the mover protrusion 1131p may include a first protrusion 1131ap1, a second protrusion 1131ap2, and a third protrusion 1131ap3, and the above description may be applied to this embodiment.

[0418] Figure 45a is a plan view of an elastic member according to an embodiment, Figure 45b is a side view of an elastic member according to an embodiment, Figure 45c is a top view of an elastic member according to an embodiment, Figure 45d is a drawing explaining the connection between the second member, the first member and the elastic member in the first camera actuator according to the fourth embodiment, and Figure 45e is a drawing of Figure 45d with the second member and the first member removed.

[0419] Referring to FIGS. 45a to 45c, the elastic member EE according to the embodiment may include a first joining portion EP1, a second joining portion EP2, and a connecting portion CP.

[0420] As an example, the first joint EP1 is connected to the first housing 1120, and the first joint EP1 and the first housing 1120 can be coupled to each other. That is, the first joint EP1 can also be coupled to a fixing member. Alternatively, the first joint EP1 can be coupled to the housing 1120 or the second member 1126. Hereinafter, as shown in the drawings, the first joint EP1 can be coupled to the second member 1126. In this way, the first joint EP1 can be coupled to the housing 1120 described above.

[0421] The second joint EP2 is connected to the first member 1131a, and the second joint EP2 and the first member 1131a can be joined to each other.

[0422] The connecting portion CP may be disposed between the first joint portion EP1 and the second joint portion EP2, i.e., one end of the connecting portion CP may be connected to the first joint portion EP1 and the other end may be connected to the second joint portion EP2.

[0423] Specifically, the first bonding portion EP1 according to the embodiment may include a first flat region EP1f and a plurality of first bonding holes EP1h located in the first flat region EP1f.

[0424] The first flat region EP1f may have a rectangular shape. As a result, the first flat region EP1f may have a closed loop shape. The first flat region EP1f may be located along the edge of the second member 1126. As a result, the bonding strength of the first joint portion EP1 with the second member 1126 may be improved, and the reliability of the element may be improved due to support and bonding by the second member 1126 when a preload is generated, as described below.

[0425] The first connecting holes EP1h may be plural and may be in the form of holes or grooves. The first connecting holes EP1h may be coupled with protrusions formed on the second member 1126.

[0426] In addition, the first connection holes EP1h may be disposed on the first bisector LX1 or the second bisector LX2, or may be disposed symmetrically with respect to the first bisector LX1 or the second bisector LX2, so that the coupling force of the elastic member EE is not concentrated on one side, allowing accurate tilting in the X-axis or Y-axis.

[0427] The first bisector LX1 may be a line that bisects the first joint EP1 in the first direction (X-axis direction). Alternatively, the first bisector LX1 may be a line that bisects the second joint EP2 in the first direction (X-axis direction). The second bisector LX2 may be a line that bisects the first joint EP1 in the second direction (Y-axis direction). Alternatively, the second bisector LX2 may be a line that bisects the second joint EP2 in the second direction (Y-axis direction). The intersection CK may be the point where the first bisector LX1 and the second bisector LX2 intersect. The following description will be based on this.

[0428] The second joint EP2 can be located inside the first joint EP1. Specifically, the second joint EP2 can be surrounded by the first joint EP1. The inside corresponds to the direction from the first joint EP to the second joint, which is the direction from the first joint EP to the second joint EP2.

[0429] The second joint EP2 may be disposed between the mover 1130 and the first joint EP1, or between the first member 1131a and the first joint EP1. That is, the second joint EP2 may be disposed spaced apart from the first joint EP1 in the third direction (Z-axis direction).

[0430] According to this embodiment, the connecting portion CP may extend from the first member 1131a toward the second member 1126 or from the second member 1126 toward the first member 1131a. That is, the connecting portion CP may extend in the third direction (Z-axis direction). For example, the connecting portion CP may be disposed between the first joint EP1 and the second joint EP2 to connect the first joint EP1 and the second joint EP2 to each other. Accordingly, the elastic restoring force generated by the elastic member EE may be generated from the second joint EP2 toward the first joint EP1 because the first joint EP1 is a fixed member fixed to the housing (the housing is fixed). As a result, a force may be generated from the second joint EP2 toward the first joint EP1 in the first member 1131a connected to the second joint EP2 and the mover 1130 coupled to the first member 1131a. As a result, the aforementioned force may also be applied between the mover 1130 and the tilting guide portion 1141. Finally, the tilting guide portion 1141 presses the second member 1126, so that the tilting guide portion 1141 can maintain the position between the mover 1130 and the second member 1126 (or housing) so that the first axis tilt or second axis tilt described below can be performed.

[0431] In addition, the elastic member EE can have the preload, which is the force described above, due to the separation distance dd1 in the third direction (Z-axis direction) between the first joint portion EP1 and the second joint portion EP2.

[0432] In addition, the second bonding portion EP2 of the elastic member EE does not have to be disposed on a surface that contacts the first bonding portion EP1 of the elastic member EE and one surface of the second member 1126, which is the fixing member. As described above, the first bonding portion EP1 and the second bonding portion EP2 may be disposed on different planes (XY) and spaced apart in the third direction (Z-axis direction). This allows the second bonding portion EP2 to be positioned closer to the reflective member than the first bonding portion EP1.

[0433] In addition, in this embodiment, even if a preload is applied in a direction opposite to the third direction (e.g., from the tilting guide unit toward the first member), the position of the tilting guide unit 1141 can be easily maintained. Furthermore, if a magnetic material is not used, malfunction of other camera actuators (e.g., the second camera actuator) adjacent to the first camera actuator due to magnetic force can be prevented. Furthermore, the first camera actuator according to the fourth embodiment can be easily miniaturized by using a lightweight and thin elastic member without using a magnetic material. Alternatively, a repulsive force between the magnetic materials can be generated by disposing magnetic materials of the same polarity in the first and second grooves. The generated repulsive force can then be transmitted to the fourth mounting groove of the holder through the first member. The holder can then apply a force to the tilting guide unit in the same direction as the generated repulsive force. This allows the elastic member to easily restore its original position due to the repulsive force of the magnetic material. This improves the reliability of the elastic member. Furthermore, the position of the tilting guide part 1141 can be more easily maintained by the generated repulsive force, and the X-axis tilt or Y-axis tilt can be accurately performed.

[0434] For example, the second joining portion EP2 may include a second flat region EP2f and a plurality of second joining holes EP2h located in the second flat region EP2f. The second flat region EP2f may be circular and may contact the first member 1131a. The second joining holes EP2h may be coupled to the second coupling portion PP2.

[0435] In addition, as an example, the first contact holes EP1h may be spaced apart from one another in the first direction (X-axis direction) or the second direction (Y-axis direction), and the second contact holes EP2h may be spaced apart from one another in the second direction (Y-axis direction).

[0436] In addition, the second connection hole EP2h may be located between the adjacent first connection holes EP1h. For example, the second connection hole EP2h and the first connection hole EP1h may be located on the first bisector LX1. Also, the first connection hole EP1h may be located on the second bisector LX2. Accordingly, the force applied by the elastic member EE in the first camera actuator according to the fourth embodiment may be uniformly applied to the mover.

[0437] The X-axis tilt can be performed by adjusting the amount of current provided to the first coil. That is, since the position of the mover is restored to its initial position by the elastic member EE after being driven, the X-axis tilt can be easily performed with only the current applied to the first coil. As a result, the camera module according to this embodiment can improve energy efficiency and easily perform driving.

[0438] In one embodiment, the connecting portion CP may include a first connecting portion CP1, a second connecting portion CP2, a third connecting portion CP3, and a fourth connecting portion CP4 located between the first connecting portion EP1 and the second connecting portion EP2. The following description may be applied to the first connecting portion CP to the fourth connecting portion CP4.

[0439] The first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4 can be arranged in the first to fourth quadrants S1 to S4 defined by the first bisector LX1 and the second bisector LX2, respectively.

[0440] The first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4 may be sequentially arranged in a clockwise or counterclockwise direction from the first connecting portion EP1 to the second connecting portion EP2. The following description will be based on the counterclockwise direction. For example, the first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4 may be located in a first quadrant S1, a second quadrant S2, a third quadrant S3, and a fourth quadrant S4, respectively, which are separated by a first bisector LX1 and a second bisector LX2. The first to fourth quadrants S1 to S4 are located in a counterclockwise direction.

[0441] Furthermore, the first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3 and the fourth connecting portion CP4 may each have a shape such as a bent portion between the first joining portion EP1 and the second joining portion EP2.

[0442] In particular, the first connector CP1, the second connector CP2, the third connector CP3, and the fourth connector CP4 according to the embodiment may have the same shape in the counterclockwise direction. In other words, the first connector CP1 and the third connector CP3 may be symmetrical with respect to each other with respect to the first bisector LX1 and the second bisector LX2. Furthermore, the second connector CP2 and the fourth connector CP4 may be symmetrical with respect to each other with respect to the first bisector LX1 and the second bisector LX2. This configuration may improve the linearity of the restoring force with respect to the X-axis tilt or the Y-axis tilt. For example, if the first connector CP1 to the fourth connector CP4 were symmetrical with respect to only one of the first bisector LX1 and the second bisector LX2, the restoring force with respect to the X-axis / Y-axis tilt may be unbalanced in one direction. However, in the camera actuator according to the embodiment, the connecting portions are symmetrical with respect to the first bisector LX1 and the second bisector LX2, so that such imbalance can be eliminated.

[0443] For example, the first junction portion EP1 may include a first junction point P1 to a fourth junction point P4 that contact the connecting portion CP, and the second junction portion EP2 may include a fifth junction point P5 to an eighth junction point P6 that contact the connecting portion CP.

[0444] The first connecting portion CP1 may contact the first connecting point P1 of the first connecting portion EP1 and the fifth connecting point P5 of the second connecting portion EP2. The second connecting portion CP2 may contact the second connecting point P2 of the first connecting portion EP1 and the sixth connecting point P6 of the second connecting portion EP2. The third connecting portion CP3 may contact the third connecting point P3 of the first connecting portion EP1 and the seventh connecting point P7 of the second connecting portion EP2. The fourth connecting portion CP4 may contact the fourth connecting point P1 of the first connecting portion EP1 and the eighth connecting point P8 of the second connecting portion EP2.

[0445] The first junction point P1, the fifth junction point P5, the third junction point P3, and the seventh junction point P7 may be arranged on a first diagonal line DL1 passing through the intersection point CK, and the second junction point P2, the sixth junction point P6, the fourth junction point P4, and the eighth junction point P8 may be arranged on a second diagonal line DL2 passing through the intersection point CK.

[0446] The first connecting portion CP1 may extend inward from the first junction point P1, bend below the first virtual line DL1, and then extend inward to protrude below the first virtual line DL1. The first connecting portion CP1 may extend above the first virtual line DL1 and be bent to protrude. The first connecting portion CP1 may extend below the first virtual line DL1 and be bent to protrude, and then contact the fifth junction point P5 of the second junction portion EP2.

[0447] The second connecting part CP2 may extend inward from the second junction point P2, bend above the second diagonal line DL2, and then extend inward to protrude below the second imaginary line DL2. The second connecting part CP2 may extend below the second imaginary line DL2, be bent, and then extend above the second imaginary line DL2 and bent to form a protruding structure, and then contact the sixth junction point P6 of the second junction part EP2.

[0448] The third connecting part CP3 may extend inward from the third junction point P3, bend above the first diagonal line DL1, and then extend inward to protrude below the first virtual line DL1. The third connecting part CP3 may extend below the first virtual line DL1, be bent to protrude, and then extend above the first virtual line DL1 and be bent to protrude, and then contact the seventh junction point P7 of the second junction part EP2.

[0449] The fourth connecting portion CP4 may extend inward from the fourth junction point P4, bend below the second virtual line DL2, and then extend inward to protrude below the second virtual line DL2. The fourth connecting portion CP4 may extend above the second virtual line DL2 and be bent to protrude. The fourth connecting portion CP4 may extend below the second virtual line DL2 and be bent to protrude, and then contact the eighth junction point P8 of the second junction portion EP2.

[0450] Referring to FIGS. 45d and 45e, in the first camera actuator according to the fourth embodiment, the second joint portion EP2 can overlap the first protrusion portion PR1 in the second axis or the first direction.

[0451] In addition, the apex of the first protrusion PR1 of the base (described later) may be disposed on the middle axis (corresponding to the second virtual line LX2 described above) that bisects the plurality of second connection holes EP2h. With this configuration, when the second axis tilt is performed by the first protrusion PR1, the force applied to the tilting guide part by the elastic member EE may be generated uniformly based on the second axis or the first direction.

[0452] In addition, the apex of the second protrusion PR2 may be located on the first bisector LX1. That is, the apex of the second protrusion PR2 may be disposed on the first bisector LX1 that bisects the first connection hole EP1h. Accordingly, in the camera actuator according to the embodiment, the force applied by the elastic member EE may be uniformly applied to the upper and lower parts of the mover.

[0453] Furthermore, the mover protrusion 1131ap may at least partially overlap with the connecting portion CP in the first direction. The damper member DP may be disposed between the mover protrusion 1131ap and the connecting portion CP. This allows the damper member DP to be coupled to the mover protrusion 1131ap and the connecting portion CP. With this configuration, the damper member DP can suppress vibrations during settling time when the mover rotates around its axis. Furthermore, the damper member DP can suppress damage to the spring due to resonance frequencies. This may improve the reliability of the first camera actuator according to this embodiment.

[0454] FIG. 46 is a diagram of a first camera actuator according to the fifth embodiment.

[0455] 46, the first camera actuator 1100F according to the fifth embodiment includes a first housing 1120, a mover 1130, a rotating unit 1140, a first driving unit 1150, an elastic member EE, a second member 1126, a first member 1131a, and damper members DP1 and DP2. Furthermore, the same contents as above may be applied except for the contents described below.

[0456] In the first camera actuator 1100C according to the fourth embodiment, the first member 1131a may include a member protrusion 1131ap disposed adjacent to the connecting portion CP.

[0457] The component protrusion 1131ap may at least partially overlap with the connecting portion CP in the optical axis direction or the third direction (Z-axis direction), or the component protrusion 1131ap may be disposed adjacent to the connecting portion CP even if it does not overlap with the connecting portion CP in the optical axis direction.

[0458] At least a portion of the connecting portion CP may have a curvature corresponding to the outer surface of the component protrusion 1131ap. That is, the connecting portion CP and the component protrusion 1131ap may have opposing surfaces or lines that correspond to each other. The opposing surfaces or lines may have a curvature. This allows the damper member DP1 to be easily coupled to the first component 1131a and the elastic component EE. Furthermore, the component protrusion 1131ap may prevent the damper member DP1 from being coupled to components other than the first component 1131a and the elastic component EE. Furthermore, due to the curved surface or line, the component protrusion 1131ap may have a protruding region on one side. This allows the first component protrusion 1131ap and the first component 1131a to be more easily coupled to the damper member DP1.

[0459] Furthermore, the width or length of the upper surface of the first member 1131a in the first direction (X-axis direction) may be smaller than that of the lower surface. For example, the width or length of the upper surface of the first member 1131a in the first direction (X-axis direction) may be smaller than the width or length of the lower surface in the first direction (X-axis direction).

[0460] Furthermore, the area of ​​the upper surface of the first member 1131a may be smaller than that of the lower surface. With this configuration, the bonding area between the damper member DP1 and the elastic member EE can be easily secured, and the phenomenon of the damper member flowing downward can be easily prevented.

[0461] In addition, the height or length of the second coupling portion in the third direction (Z-axis direction) may be smaller than the width or length of the member protrusion 1131ap in the third direction, which facilitates the formation of preload on the elastic member EE and also allows coupling between the member protrusion 1131ap and the damper member DP1, as described above.

[0462] The damper member DP1 may be disposed in an upper region with respect to the second joint EP2. Similarly, the member protrusion 1131ap may be disposed in an upper region with respect to the second joint EP2. As a result, the damper member DP1 may be coupled to the member protrusion 1131ap and the connecting portion CP in a first direction side region with respect to the second joint EP2. With this configuration, the damper member DP1 can suppress vibrations during settling time when the mover rotates around its axis. Furthermore, the damper member DP1 can suppress damage to the spring due to resonance frequencies. This may improve the reliability of the first camera actuator according to the embodiment.

[0463] Furthermore, the component protrusion 1131ap may be located between the first bonding portion and the second bonding portion. Furthermore, the component protrusion 1131ap may overlap at least partially in the second direction (Y-axis direction). Furthermore, since the first connecting portion and the second connecting portion are not symmetrical with each other in the first direction, the component protrusion 1131ap may not be disposed symmetrically with respect to the first direction.

[0464] Also, as an example, the second member 1126 may include a housing protrusion 1126p disposed adjacent to the connecting portion CP. The housing protrusion 1126p may be disposed adjacent to the connecting portion CP. Furthermore, the housing protrusion 1126p may at least partially overlap with the connecting portion CP in the first direction (X-axis direction).

[0465] Furthermore, at least a portion of the connecting portion CP may correspond to the outer surface of the housing protrusion 1126p. For example, the connecting portion CP and the housing protrusion 1126p may have opposing surfaces or lines that correspond to each other. The opposing surfaces or lines may have a curvature. This allows the damper member DP2 to be easily coupled to the second member 1126 and the elastic member EE. Furthermore, the damper member DP2 may be prevented from being coupled to a member other than the second member 1126 and the elastic member EE. This allows the housing protrusion 1126p to have a protruding region 1126pp due to the curved surface or line. This allows the damper member DP2 to further suppress vibration during settling time when the mover rotates around its axis. Furthermore, the damper member DP2 may more effectively suppress damage to the spring due to resonant frequency. This may improve the reliability of the first camera actuator according to the embodiment.

[0466] In addition, the housing protrusion 1126p may at least partially overlap with the connecting portion CP in the optical axis direction or the third direction (Z-axis direction). This may further improve the coupling force between the housing protrusion 1126p and the connecting portion CP by the damper member DP2. Furthermore, the housing protrusion 1126p may prevent the connecting portion CP from slipping out.

[0467] Alternatively, the housing protrusions 1126p may be spaced apart from each other in a region intersecting the third direction without overlapping with the connecting portion CP in the third direction.

[0468] The damping member DP2 may be disposed in a lower region with respect to the second joint EP2. Similarly, the housing protrusion 1126p may be disposed in an upper region with respect to the second joint EP2. Figure 47 is a drawing of a first camera actuator according to the sixth embodiment.

[0469] 47, the first camera actuator 1100D according to the sixth embodiment includes a first housing 1120, a mover 1130, a rotating part 1140, a first driving part 1150, an elastic member EE, a second member 1126, a first member 1131a, and a damper member DP1. Furthermore, the same contents as above may be applied except for the contents described below.

[0470] In the first camera actuator 1100E according to the sixth embodiment, the first member 1131a may include a member protrusion 1131ap disposed adjacent to the connecting portion CP. The above-mentioned explanation regarding this may be applied. Furthermore, the housing protrusion and the damper member described above may not be coupled to the elastic member EE.

[0471] As described above, the member protrusion 1131ap may be disposed in the upper region with respect to the second joint portion EP2, and the damper member DP1 may be disposed in the upper region with respect to the second joint portion EP2.

[0472] The component protrusions 1131ap may be plural and may be arranged in a lower region with respect to the second joint portion EP2. For example, the component protrusions 1131ap may be arranged adjacent to the first to fourth connecting portions, respectively. The component protrusions 1131ap may be coupled to the first to fourth connecting portions through the damper member DP1, respectively.

[0473] FIG. 48 is a diagram of a first camera actuator according to the seventh embodiment.

[0474] 48, the first camera actuator 1100F according to the seventh embodiment includes a first housing 1120, a mover 1130, a rotating part 1140, a first driving part 1150, an elastic member EE, a second member 1126, a first member 1131a, and a damper member DP2. Furthermore, the same contents as above may be applied except for the contents described below.

[0475] In the first camera actuator 1100E according to the seventh embodiment, the first member 1131a does not need to be coupled to the elastic member through a member protrusion 1131ap and a damper member disposed adjacent to the connecting portion CP. Also, the second member 1126 may include a housing protrusion 1126p protruding outward or in the third direction (Z-axis direction). The housing protrusion 1126p may be coupled to the elastic member (connecting portion) through a damper member DP2. The above-mentioned explanations regarding this are applicable.

[0476] As described above, the housing protrusion 1126p may be disposed in a lower region with respect to the second joint portion EP2, and the damper member DP1 may be disposed in a lower region with respect to the second joint portion EP2.

[0477] FIG. 49 is a diagram of a first camera actuator according to the eighth embodiment.

[0478] 49, the first camera actuator 1100G according to the eighth embodiment includes a first housing 1120, a mover 1130, a rotating part 1140, a first driving part 1150, an elastic member EE, a second member 1126, a first member 1131a, and a damper member DP. Furthermore, the same contents as above may be applied except for the contents described below.

[0479] In addition, as an embodiment, the holder 1131 of the mover 1130 or the first member 1131a coupled to the holder 1131 may include a mover protrusion 1131p protruding from the fourth holder outer surface 1131S4 or the outer surface of the first member toward the outside or the spring.

[0480] The mover protrusion 1131ap may be composed of a plurality of protrusions. For example, the mover protrusion 1131p may include a first protrusion 1131ap1, a second protrusion 1131ap2, and a third protrusion 1131ap3, and the above description may be applied to this embodiment.

[0481] Furthermore, the mover protrusion 1131ap may at least partially overlap with the connecting portion CP in the first direction. The damper member DP may be disposed between the mover protrusion 1131ap and the connecting portion CP. This allows the damper member DP to be coupled to the mover protrusion 1131ap and the connecting portion CP. With this configuration, the damper member DP can suppress vibrations during settling time when the mover rotates around its axis. Furthermore, the damper member DP can suppress damage to the spring due to resonance frequencies. This may improve the reliability of the first camera actuator according to this embodiment.

[0482] In the first camera actuator 1100E according to this embodiment, the first member 1131a may include a member protrusion 1131ap disposed adjacent to the connecting portion CP. The above-described explanation regarding this may be applied. Furthermore, the housing protrusion and the damper member described above may not be coupled to the elastic member EE.

[0483] As described above, the member protrusion 1131ap may be disposed in the upper region with respect to the second joint portion EP2, and the damper member DP1 may be disposed in the upper region with respect to the second joint portion EP2.

[0484] The component protrusions 1131ap may be plural and may be arranged in a lower region with respect to the second joint portion EP2. For example, the component protrusions 1131ap may be arranged adjacent to the first to fourth connecting portions, respectively. The component protrusions 1131ap may be coupled to the first to fourth connecting portions through the damper member DP1, respectively.

[0485] Alternatively, the second member 1126 may include a housing protrusion 1126p protruding outward or in the third direction (Z-axis direction). The housing protrusion 1126p may be coupled to the elastic member (connector) through the damper member DP2. The above-mentioned description regarding this may also be applied.

[0486] Figure 50 is an oblique view of the second camera actuator according to the embodiment, Figure 51 is an exploded oblique view of the second camera actuator according to the embodiment, Figure 52 is a cross-sectional view taken from DD' in Figure 50, and Figure 53 is a cross-sectional view taken from EE' in Figure 50.

[0487] 50 to 53, the second camera actuator 1200 according to the embodiment may include a lens unit 1220, a second housing 1230, a second driving unit 1250, a base unit (not shown), and a second substrate unit 1270. The second camera actuator 1200 may further include a second shielding can (not shown), an elastic unit (not shown), and a joining member (not shown). The second camera actuator 1200 according to the embodiment may further include an image sensor IS.

[0488] The second shielding can (not shown) is located in one area (e.g., the outermost) of the second camera actuator 1200 and can be positioned to surround the components described below (lens section 1220, second housing 1230, elastic section (not shown), second drive section 1250, base section (not shown), second substrate section 1270 and image sensor IS).

[0489] Such a second shielding can (not shown) can block or reduce externally generated electromagnetic waves, thereby reducing the occurrence of malfunctions in the second driving part 1250.

[0490] The lens unit 1220 may be located within a second shielding can (not shown). The lens unit 1220 may move in a third direction (Z-axis direction). Accordingly, the above-mentioned AF function may be performed.

[0491] Specifically, the lens portion 1220 can include a lens assembly 1221 and a bobbin 1222 .

[0492] The lens assembly 1221 may include at least one lens. Although there may be a plurality of lens assemblies 1221, the following description will be given based on one lens.

[0493] The lens assembly 1221 is coupled to the bobbin 1222 and can move in the third direction (Z-axis direction) by the electromagnetic force generated by the fourth magnet 1252a and the second magnet 1252b coupled to the bobbin 1222.

[0494] The bobbin 1222 may include an open area surrounding the lens assembly 1221. The bobbin 1222 may be coupled to the lens assembly 1221 in various ways. The bobbin 1222 may also include grooves on its side, through which the fourth magnet 1252a and the second magnet 1252b may be coupled. A bonding material may be applied to the grooves.

[0495] In addition, the bobbin 1222 may be coupled to elastic portions (not shown) at its upper and rear ends. As a result, the bobbin 1222 may move in the third direction (Z-axis direction) but be supported by the elastic portions (not shown). That is, the position of the bobbin 1222 may be maintained in the third direction (Z-axis direction). The elastic portions (not shown) may be made of a leaf spring.

[0496] The second housing 1230 may be disposed between the lens portion 1220 and a second shielding can (not shown), and may be disposed to surround the lens portion 1220.

[0497] The second housing 1230 may have holes formed on its side, in which the fourth coil 1251a and the fifth coil 1251b may be disposed, and the holes may be positioned to correspond to the grooves of the bobbin 1222 described above.

[0498] The fourth magnet 1252a may be positioned to face the fourth coil 1251a, and the second magnet 1252b may be positioned to face the fifth coil 1251b.

[0499] 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 bobbin 1222. The second elastic member (not shown) may be coupled to the lower surface of the bobbin 1222. The first elastic member (not shown) and the second elastic member (not shown) may be formed of a leaf spring, as described above. The first elastic member (not shown) and the second elastic member (not shown) may provide elasticity against movement of the bobbin 1222.

[0500] The second driving unit 1250 may provide driving forces F3 and F4 that move the lens unit 1220 in the third direction (Z-axis direction). The second driving unit 1250 may include a second driving coil 1251 and a second driving magnet 1252.

[0501] The lens unit 1220 can move in the third direction (Z-axis direction) by the electromagnetic force generated between the second drive coil 1251 and the second drive magnet 1252.

[0502] The second driving 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 in the sides of the second housing 1230. The fourth coil 1251a and the fifth coil 1251b may be electrically connected to the second substrate unit 1270. As a result, the fourth coil 1251a and the fifth coil 1251b may be supplied with current through the second substrate unit 1270.

[0503] The second drive magnet 1252 may include a fourth magnet 1252 a and a fifth magnet 1252 b. The fourth magnet 1252 a and the fifth magnet 1252 b may be disposed in the aforementioned grooves of the bobbin 1222 and may be positioned to correspond to the fourth coil 1251 a and the fifth coil 1251 b.

[0504] A base portion (not shown) may be located between the lens portion 1220 and the image sensor IS. Components such as a filter may be fixed to the base portion (not shown). The base portion (not shown) may also be disposed to surround the image sensor IS. With this configuration, the image sensor IS is free from foreign matter, and therefore, the reliability of the device may be improved.

[0505] The second camera actuator may be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator may support one or more lenses and perform an auto focus function or a zoom function by moving the lenses in response to a control signal from a predetermined controller.

[0506] And the second camera actuator can be a fixed zoom or a continuous zoom. For example, the second camera actuator can provide movement of the lens assembly 1221.

[0507] In addition, the second camera actuator may be composed of multiple lens assemblies. For example, the second camera actuator may be provided with 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-mentioned disclosure may apply to this. This allows the second camera actuator to perform a high-magnification zoom function through a driver. For example, the first lens assembly (not shown) and the second lens assembly (not shown) may be moving lenses that move via a driver and a guide pin (not shown), and the third lens assembly (not shown) may be a fixed lens, but is not limited to this. For example, the third lens assembly (not shown) may function as a condenser that focuses light at a specific position, and the first lens assembly (not shown) may function as a variator that refocuses the image focused by the condenser third lens assembly (not shown) at another location. Meanwhile, the first lens assembly (not shown) may experience large changes in magnification due to significant changes in the distance to the subject or the image distance, and the first lens assembly (not shown), which is a variable magnification element, may play an important role in changing the focal length or magnification of the optical system. Meanwhile, the image point formed by the first lens assembly (not shown), which is a variable magnification element, may vary slightly depending on its position. For this reason, the second lens assembly (not shown) may perform a position compensation function for the image formed by the variable magnification element. For example, the second lens assembly (not shown) may function as a compensator that accurately focuses the image point formed by the first lens assembly (not shown), which is a variable magnification element, at the actual image sensor position.

[0508] The image sensor IS may be located inside or outside the second camera actuator. In an embodiment, as shown, the image sensor IS may be located inside the second camera actuator. The image sensor IS may receive light and convert the received light into an electrical signal. The image sensor IS may also be configured as an array of multiple pixels. The image sensor IS may be located on the optical axis.

[0509] FIG. 54 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

[0510] As shown in FIG. 54, the mobile terminal 1500 of the embodiment may include a camera module 1000, a flash module 1530, and an autofocus device 1510 provided on the rear surface.

[0511] The camera module 1000 may include an image capture function and an autofocus function, for example, the camera module 1000 may include an image-based autofocus function.

[0512] The camera module 1000 processes still or video image frames acquired by an image sensor in a photography mode or a video call mode.

[0513] The processed image frame can be displayed on a predetermined display unit or stored in a memory.A camera (not shown) can also be disposed on the front of the mobile terminal body.

[0514] For example, the camera module 1000 may include a first camera module 1000A and a second camera module 1000B, where the first camera module 1000A may implement an OIS function along with an AF or zoom function, and the second camera module 1000B may implement the AF, zoom, and OIS functions. In this case, since the first camera module 1000A includes both the first and second camera actuators described above, the camera device or camera module may be easily miniaturized by changing the optical path.

[0515] In addition, in the second camera module 1000B according to the above example, a first magnet may be disposed on a first side surface (corresponding to the outer side surface of the first holder) of the first camera actuator 1100, and a dummy member (substitute for the second magnet) may be disposed on a second side surface (corresponding to the outer side surface of the second holder). In this case, the first camera module 1000A may be disposed adjacent to the second side surface as opposed to the first side surface. The second camera module 1000B has a first side surface adjacent to the first camera module and a second side surface opposite the first side surface, and may include a driving unit (corresponding to a magnet / coil, etc.) that moves the optical member between the internal optical member and the second side surface. That is, the second camera module 1000B may include a dummy member between the optical member and the first side surface.

[0516] As a result, by disposing a dummy member on the second side surface, the second camera module 1000B can perform the actuator function using a magnetic material (e.g., a magnet) while minimizing the influence of the electromagnetic force generated in the first camera module 1000B. Correspondingly, the first camera module 1000A also has a dummy member disposed adjacent to the second camera module 1000B, which can minimize the influence of the magnetic force generated from the second camera module 1000B on the function of the first camera module 1000A as an actuator.

[0517] The flash module 1530 may include a light emitting element for emitting light therein, and may be activated by the camera of the mobile terminal or by user control.

[0518] The autofocus device 1510 may include one of a package of surface emitting laser elements as a light emitting unit.

[0519] The autofocus device 1510 may include an autofocus function using a laser. The autofocus device 1510 may be used primarily in conditions where the image-based autofocus function of the camera module 1000 is degraded, such as in close proximity of less than 10 m or in dark environments.

[0520] The autofocus device 1510 may include a light emitting portion including a vertical cavity surface emitting laser (VCSEL) semiconductor device, and a light receiving portion such as a photodiode that converts optical energy into electrical energy.

[0521] FIG. 55 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

[0522] For example, FIG. 55 is an external view of a vehicle equipped with a vehicle driving assistance device to which the camera module 1000 according to the embodiment is applied.

[0523] 55, a vehicle 700 according to an embodiment may include wheels 13FL and 13FR that are rotated by a power source, and a predetermined sensor. The sensor may be, but is not limited to, a camera sensor 2000.

[0524] The camera 2000 may be a camera sensor to which the camera module 1000 according to the embodiment is applied. The vehicle 700 according to the embodiment can acquire image information through the camera sensor 2000 that captures a front image or a surrounding image, determine a lane unidentified state using the image information, and generate a virtual lane when the lane is unidentified.

[0525] For example, the camera sensor 2000 may capture an image in front of the vehicle 700 to acquire a front image, and a processor (not shown) may analyze objects included in the front image to acquire image information.

[0526] For example, if an object such as a lane marking, an adjacent vehicle, an obstacle, or an indirect road marking, such as a median strip, a curb, or a roadside tree, is captured in the image captured by the camera sensor 2000, the processor can detect such an object and include it in the image information. At this time, the processor can obtain distance information from the detected object through the camera sensor 2000 to further complement the image information.

[0527] The image information may be information about an object captured in the image. The camera sensor 2000 may include an image sensor and an image processing module.

[0528] The camera sensor 2000 can process still or moving images obtained by an image sensor (eg, CMOS or CCD).

[0529] The image processing module processes still or moving images acquired through the image sensor to extract necessary information and transmit the extracted information to a processor.

[0530] In this case, the camera sensor 2000 may include, but is not limited to, a stereo camera to improve the accuracy of measuring the object and further secure information such as the distance between the vehicle 700 and the object.

[0531] The above description has focused on the embodiments, but these are merely examples and are not intended to limit the present invention. Those skilled in the art will recognize that various modifications and applications not exemplified above are possible within the scope of the essential characteristics of the present invention. For example, each component specifically illustrated in the embodiments can be modified and implemented. Differences related to such modifications and applications should be construed as being included within the scope of the present invention as defined by the appended claims.

Claims

1. Housing and a mover disposed within the housing; a tilting guide portion disposed between the housing and the mover; a drive unit disposed within the housing and configured to drive the mover; an elastic member that brings the tilting guide portion and the mover into close contact with each other; a damper member disposed between at least one of the mover and the housing and the elastic member, the mover includes a mounting groove that accommodates the tilting guide portion, a camera actuator including a first member received in the mounting groove, disposed outside the tilting guide portion, and coupled to the mover;

2. The camera actuator of claim 1 , further comprising a second member coupled to the housing, at least a portion of the second member being disposed between the tilting guide portion and the first member.

3. The camera actuator according to claim 2 , wherein the first member and the second member are housed in the mounting groove.

4. 3. The camera actuator according to claim 2, wherein the elastic member includes a first joint portion connected to the housing, a second joint portion connected to the first member, and a connecting portion connecting the first joint portion and the second joint portion.

5. the mover includes a plurality of mover protrusions protruding toward the elastic member, The camera actuator according to claim 4 , wherein the damper member is disposed in a mover groove located between the plurality of mover protrusions and contacts the mover.

6. The camera actuator according to claim 5 , wherein at least a portion of the connecting portion is disposed within the mover groove and contacts the damper member.

7. The plurality of mover protrusions include a first protrusion and a second protrusion spaced apart along a first direction; The connecting portion passes through the mover groove, The camera actuator of claim 5 , wherein the mover groove is located between the first protrusion and the second protrusion.

8. A camera actuator as described in Claim 7, wherein the plurality of mover protrusions include a third protrusion positioned inside the mover groove.

9. The camera actuator according to claim 8 , wherein the height of the third protrusion is lower than the height of the first protrusion or the second protrusion.

10. The camera actuator according to claim 4 , wherein the first member includes a member protrusion disposed adjacent to the connecting portion.

11. the member protrusion at least partially overlaps with the connecting portion in the optical axis direction, The camera actuator according to claim 10 , wherein at least a portion of the connecting portion has a curvature corresponding to an outer surface of the member projection.

12. The camera actuator of claim 10 , wherein the damper member is coupled to the member protrusion and the connecting portion.

13. The camera actuator of claim 12 , wherein the member protrusion is located between the first joint and the second joint.

14. The camera actuator of claim 13 , wherein the second member includes a housing protrusion disposed adjacent to the coupling portion.

15. The camera actuator according to claim 14 , wherein the housing protrusion at least partially overlaps with the connecting portion in the optical axis direction.

16. The camera actuator according to claim 14 , wherein at least a portion of the coupling portion has a curvature corresponding to an outer surface of the housing protrusion.

17. The camera actuator of claim 16 , wherein the damper member couples with the housing protrusion and the coupling portion.

18. The camera actuator of claim 17 , wherein the housing protrusion at least partially overlaps with the damper member along the first direction.

19. The camera actuator of claim 4 , wherein the damper member is coupled to a leg of the linkage.

Images