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 and including an optical member; a tilting guide portion connected to the mover within the housing; and a drive portion for rotating the mover; the drive portion including a drive magnet, a drive coil facing the drive magnet, and a substrate portion on which the drive coil is disposed within the housing; and an attitude detection sensor disposed on the substrate portion; the substrate portion including a first substrate side portion and a second substrate side portion facing the first substrate side portion and on which the attitude detection sensor is disposed; and the thickness of the second substrate side portion is greater than the thickness of the first substrate side portion.

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 mobile 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 user movement, an autofocus (AF) function that automatically adjusts the distance between the image sensor and lens to align the lens focal length, and a zoom function that increases or decreases the magnification of a distant subject through a zoom lens.

[0003] However, miniaturized camera modules can reduce the accuracy of posture detection against impacts, and there is also an increasing demand for improved reliability against impacts. Summary of the Invention [Problem to be solved by the invention]

[0004] The technical problem to be solved by the present invention is to provide a camera actuator and a camera device in which the material and structure of the substrate are changed to improve the shock reliability of the attitude detection sensor in a camera module consisting of two actuators.

[0005] Furthermore, the present invention can provide a camera actuator and a camera device with improved reliability by easily reducing the heat generated from the drive coil.

[0006] Furthermore, the present invention can provide a camera actuator and a camera device with improved reliability by protecting circuit elements and the like from the intrusion of foreign matter.

[0007] Furthermore, the present invention can provide a camera actuator and a camera device that can easily secure a mounting space for elements and have improved strength due to an increased joint area for connection.

[0008] The technical problem that the present invention aims to solve is to provide a camera actuator that is applicable to ultra-slim, ultra-compact and high-resolution cameras.

[0009] 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]

[0010] A camera module according to an embodiment of the present invention includes a housing; a mover disposed within the housing and including an optical member; a tilting guide unit connected to the mover within the housing; and a driving unit for rotating the mover; the driving unit includes a driving magnet, a driving coil facing the driving magnet, and a substrate unit on which the driving coil is disposed within the housing; and an attitude detection sensor disposed on the substrate unit; and the thickness of the substrate unit varies depending on the attitude detection sensor.

[0011] The substrate portion may include a first substrate side, a second substrate side opposite the first substrate side, and a third substrate side disposed between the first substrate side and the second substrate side.

[0012] The substrate portion may include a first layer, a second layer disposed inside the first layer, and a third layer disposed outside the first layer.

[0013] The second layer may be disposed on the inner side of the first substrate side and the second substrate side.

[0014] The first layer may be disposed on the first substrate side to the third substrate side.

[0015] The second layer and the third layer may be disposed on at least one of the first substrate side and the second substrate side.

[0016] The attitude detection sensor may be disposed on a side of the second substrate, and the second layer and the third layer may be disposed on the side of the second substrate.

[0017] The attitude detection sensor may be disposed outside the first layer on the second substrate side, and the driving coil may be disposed inside the first layer on the second substrate side.

[0018] The second layer may be disposed on a side of the second substrate corresponding to the attitude detecting sensor, and the third layer may be disposed on a side of the second substrate corresponding to the driving coil.

[0019] The second layer may overlap the posture detection sensor and the driving coil in a horizontal direction, and the third layer may overlap the posture detection sensor and the driving coil in a horizontal direction, and the horizontal direction may correspond to a direction from a side of the first substrate to a side of the second substrate.

[0020] The second layer may overlap the orientation detection sensor at a side of the second substrate and may not overlap at least a portion of the driving coil, and the third layer may overlap the driving coil at a side of the second substrate and may not overlap at least a portion of the orientation detection sensor.

[0021] The attitude detection sensor and the driving coil may at least partially overlap in a horizontal direction.

[0022] The second layer and the third layer may overlap at least partially horizontally.

[0023] The first substrate side and the second substrate side may have different lengths.

[0024] The first layer may be exposed from an end of one of the first substrate side portion and the second substrate side portion.

[0025] The first layer may be exposed from an end portion of a side of the first substrate, and the region where the first layer is exposed from the side of the first substrate may be spaced apart from the second layer.

[0026] The substrate portion may include a connection terminal disposed corresponding to an area where the first layer is exposed from the first substrate side portion.

[0027] The third substrate side does not overlap the second layer and the third layer in a vertical direction, and the vertical direction can correspond to a direction from the third substrate side toward the mover. [Effects of the Invention]

[0028] According to an embodiment of the present invention, a camera actuator and / or a camera device can be implemented in a camera module including two actuators, in which the material and / or structure of the substrate is changed to improve the impact reliability of the attitude detection sensor.

[0029] Furthermore, the present invention can realize a camera actuator and a camera device with improved reliability by easily reducing heat generated from the driving coil.

[0030] Furthermore, the present invention can provide a camera actuator and a camera device with improved reliability by protecting circuit elements from the intrusion of foreign matter.

[0031] Furthermore, the present invention can provide a camera actuator and a camera device that can easily secure a mounting space for elements and have improved strength due to an increased joint area for connection.

[0032] The technical problem to be solved by the present invention is to realize a camera actuator that can be applied to ultra-slim, ultra-compact and high-resolution cameras.

[0033] The various beneficial advantages and effects of the present invention are not limited to the above, but will be more easily understood in the course of describing specific embodiments of the present invention. [Brief explanation of the drawings]

[0034] [Figure 1] FIG. 1 is a perspective view of a camera module according to an embodiment.

[0035] [Figure 2] FIG. 1 is an exploded perspective view of a camera module according to an embodiment.

[0036] [Figure 3] This is a view from AA' in Figure 1.

[0037] [Figure 4] FIG. 2 is a perspective view of a first camera actuator according to the embodiment.

[0038] [Figure 5] FIG. 2 is an exploded perspective view of a first camera actuator according to the embodiment.

[0039] [Figure 6a] FIG. 2 is a perspective view of a first housing of a first camera actuator according to the embodiment.

[0040] [Figure 6b] FIG. 6b is a perspective view in a different direction from FIG. 6a.

[0041] [Figure 6c] FIG. 2 is a front view of a first housing of a first camera actuator according to the embodiment.

[0042] [Figure 6d] FIG. 2 is a rear view of the first housing of the first camera actuator in the embodiment.

[0043] [Figure 6e] FIG. 2 is a top view of a first housing of a first camera actuator according to an embodiment.

[0044] [Figure 7]FIG. 2 is a perspective view of an optical member of a first camera actuator in the embodiment.

[0045] [Figure 8a] FIG. 2 is a perspective view of a holder of a first camera actuator in the embodiment.

[0046] [Figure 8b] FIG. 10 is a bottom view of the holder of the first camera actuator in the embodiment.

[0047] [Figure 8c] FIG. 2 is a front view of a holder of a first camera actuator according to the embodiment.

[0048] [Figure 8d] FIG. 10 is a rear view of the second member of the first camera actuator in the embodiment.

[0049] [Figure 8e] FIG. 10 is a bottom view of the second member of the first camera actuator in the embodiment.

[0050] [Figure 9a] FIG. 2 is a perspective view of a tilting guide portion of a first camera actuator according to the embodiment.

[0051] [Figure 9b] FIG. 9b is a perspective view in a different direction from FIG. 9a.

[0052] [Figure 9c] This is a view from FF' in Figure 9a.

[0053] [Figure 10a] 10 is a diagram illustrating a first driving unit of a first camera actuator according to an embodiment.

[0054] [Figure 10b] 1 is a perspective view of a drive coil and a first substrate portion of a first camera actuator according to an embodiment. FIG.

[0055] [Figure 10c] 10 is another perspective view of the drive coil and the first substrate unit of the first camera actuator according to the embodiment. FIG.

[0056] [Figure 10d] FIG. 2 is a front view of a drive coil and a first substrate portion of a first camera actuator according to an embodiment.

[0057] [Figure 10e] FIG. 2 is a plan view of a drive coil and a first substrate portion of a first camera actuator according to an embodiment.

[0058] [Figure 10f] FIG. 2 is a plan view showing the drive coil and the first substrate portion of the first camera actuator in the embodiment in an expanded state.

[0059] [Figure 10g] FIG. 10 is a bottom view of the first camera actuator with the drive coil and first substrate portion unfolded in accordance with one embodiment.

[0060] [Figure 10h] FIG. 10f is a diagram illustrating the connection between the coils.

[0061] [Figure 10i] FIG. 2 is a cross-sectional view of a first substrate portion of a first camera actuator according to an embodiment.

[0062] [Figure 10j] 10 is a diagram illustrating the effects of a drive coil and a first substrate unit in the first camera actuator according to the embodiment. [Figure 10k] 10 is a diagram illustrating the effects of a drive coil and a first substrate unit in the first camera actuator according to the embodiment.

[0063] [Figure 10l]FIG. 10 is a front view of a drive coil and a first substrate portion of a first camera actuator according to another embodiment.

[0064] [Figure 10m] FIG. 10 is a cross-sectional view of a first substrate portion of a first camera actuator according to another embodiment.

[0065] [Figure 10n] FIG. 10 is a front view of a drive coil and a first substrate portion of a first camera actuator according to yet another embodiment.

[0066] [Figure 10o] FIG. 10 is a cross-sectional view of a first substrate portion of a first camera actuator according to yet another embodiment.

[0067] [Figure 10p] FIG. 10 is a front view of a drive coil and a first substrate portion of a first camera actuator according to yet another embodiment.

[0068] [Figure 10q] FIG. 10 is a cross-sectional view of a first substrate portion of a first camera actuator according to yet another embodiment.

[0069] [Figure 11a] FIG. 2 is a perspective view of a first camera actuator according to the embodiment.

[0070] [Figure 11b] This is a view from PP' in Figure 11a.

[0071] [Figure 11c] Figure 11a shows the view from QQ'.

[0072] [Figure 12a] FIG. 2 is a perspective view of a first camera actuator according to the embodiment.

[0073] [Figure 12b]The drawing viewed from SS' in Fig. 12a.

[0074] [Figure 12c] An exemplary view of the movement of the first camera actuator shown in Fig. 12b.

[0075] [Figure 13a] The drawing viewed from RR' in Fig. 12a.

[0076] [Figure 13b] An exemplary view of the movement of the first camera actuator shown in Fig. 13a.

[0077] [Figure 14] A perspective view of the second camera actuator according to the embodiment.

[0078] [Figure 15] An exploded perspective view of the second camera actuator according to the embodiment.

[0079] [Figure 16] The drawing viewed from DD' in Fig. 14.

[0080] [Figure 17a] A perspective view of the second housing of the second camera actuator according to the embodiment. [Figure 17b] A perspective view of the second housing of the second camera actuator according to the embodiment. [Figure 17c] A perspective view of the second housing of the second camera actuator according to the embodiment.

[0081] [Figure 18] A drawing for explaining each drive of the lens assembly according to the embodiment. [Figure 19] A drawing for explaining each drive of the lens assembly according to the embodiment.

[0082] [Figure 20]10 is a diagram illustrating driving of a second camera actuator according to an embodiment.

[0083] [Figure 21] FIG. 1 is a schematic diagram illustrating a circuit board according to an embodiment.

[0084] [Figure 22] FIG. 2 is a perspective view of a first lens assembly, a first bonding member, a second bonding member, and a second lens assembly according to the embodiment.

[0085] [Figure 23] 1 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied;

[0086] [Figure 24] 1 is a perspective view of a vehicle to which a camera module according to an embodiment is applied; DETAILED DESCRIPTION OF THE INVENTION

[0087] The present invention can be modified in various ways and has various embodiments, and therefore, specific embodiments will be illustrated and described in the drawings. However, it is not intended to limit the present invention to the specific embodiments, 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by a person 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.

[0092] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, and the same or corresponding elements will be given the same reference numerals regardless of the drawing reference numerals, and redundant description thereof will be omitted.

[0093] 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 view seen from AA' in FIG.

[0094] The following views correspond to views cut along the relevant cutting plane.

[0095] 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 interchangeably referred to as the first actuator, and the second camera actuator 1200 may be interchangeably referred to as the second actuator. Furthermore, the camera actuator may be interchangeably referred to as an "actuator," a "lens transport device," a "lens moving device," a "lens driving device," etc. Furthermore, the camera module may be interchangeably used with a camera device, an optical device, a mobile phone, etc.

[0096] 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.

[0097] Furthermore, the cover CV may be made of a material that blocks electromagnetic waves, thereby easily protecting the first camera actuator 1100 and the second camera actuator 1200 within the cover CV.

[0098] 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 (axis of incident light).

[0099] 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 also be referred to as a "single focal length lens" or "single lens."

[0100] 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 mirror). For example, the optical member can change the light from a first direction (X-axis direction) to a third direction (Z-axis direction). Alternatively, the optical member can change the light from a first axis to a second axis. With this configuration, even if the thickness of the mobile terminal is reduced, a lens configuration larger than the thickness of the mobile terminal can be disposed within the mobile terminal through the change in the path of light, allowing magnification, autofocusing (AF), zoom, and OIS functions to be performed.

[0101] 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.

[0102] The second camera actuator 1200 may be disposed at the rear end of the first camera actuator 110. The second camera actuator 1200 may be coupled to the first camera actuator 1100. The coupling therebetween may be performed in various ways.

[0103] 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.

[0104] One or more lenses are independently or individually moved along the optical axis.

[0105] The circuit board 1300 may be disposed at the rear end of the second camera actuator 120. 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.

[0106] 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.

[0107] 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.

[0108] 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, in this specification, a camera actuator may be referred to as an actuator, etc. Furthermore, a camera module consisting of multiple camera modules may be mounted in various electronic devices such as a mobile terminal. Furthermore, an actuator may be a device that moves or tilts a lens or optical member. However, hereinafter, the actuator will be described as including a lens or an optical member. Furthermore, an actuator may be referred to as a "lens moving device," a "lens moving device," an "optical member moving device," an "optical member moving device," etc.

[0109] 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.

[0110] Light may be incident into 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 is incident into the first camera actuator 1100 along the optical axis direction (e.g., the X-axis direction, based on the incident light), and the optical path may be changed (e.g., changed from the X-axis direction to the Z-axis direction) through an optical member. The light then passes through the second camera actuator 1200 and may be incident (PATH) on the image sensor IS located at one end of the second camera actuator 1200. In the following description, the Z-axis direction or the third direction will be referred to as the optical axis direction.

[0111] In this specification, the bottom surface 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. In the following description of 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.

[0112] 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.

[0113] With this configuration, the camera module according to the embodiment can improve the spatial limitations of the first and second camera actuators by changing the optical path. That is, the camera module according to the embodiment can expand the optical path while minimizing the thickness of the camera module in response to the change in the optical 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 expanded optical path.

[0114] 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 decentering and tilt phenomena and exhibiting the best optical characteristics.

[0115] 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, and a third lens assembly.

[0116] The second camera actuator 1200 includes a coil and a magnet and can perform high magnification zooming and autofocus functions.

[0117] For example, the first and second lens assemblies may be moving lenses that move via coils, magnets, and guide pins, 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 and second lens assemblies 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. The first to third lens assemblies may be moved along the optical axis direction, i.e., the third direction. The first to third lens assemblies may be moved in the third direction independently or dependently of each other. In the present invention, the first and second lens assemblies may be moved along the optical axis direction. The third lens assembly may be located at the front end of the first lens assembly or the rear end of the second lens assembly. The third lens assembly may not be moved in the optical axis direction. That is, the third lens assembly may be a fixed part. The first and second lens assemblies may be movable parts.

[0118] Meanwhile, when an OIS actuator and an AF / Zoom actuator are arranged according to an embodiment of the present invention, magnetic field interference with the AF / Zoom magnet 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 vibration correction.

[0119] FIG. 4 is a perspective view of the first camera actuator according to the embodiment, and FIG. 5 is an exploded perspective view of the first camera actuator according to the embodiment.

[0120] 4 and 5, a first camera actuator 1100 according to the embodiment may include a first housing 1120, a mover 1130, a rotating unit 1140, a first driving unit 1150, a first member 1126, and a second member 1131a. Furthermore, the first camera actuator 1100 may further include a plate CP.

[0121] The mover 1130 may include a holder 1131 and an optical member 1132 mounted on the holder 1131. The rotation unit 1140 may include a tilting guide unit 1141, a second magnetic body 1142 and a first magnetic body 1143 having the same or different polarities to apply pressure to the tilting guide unit 1141. For example, the polarities of the opposing surfaces of the first magnetic body 1143 and the second magnetic body 1142 may be the same. The first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor unit 1153, a first substrate unit 1154, and a yoke unit 1155.

[0122] First, the first camera actuator 1100 may include a shielding can (not shown). The shielding can (not shown) may be located at the outermost portion of the first camera actuator 1100 to surround the rotating unit 1140 and the first driving unit 1150, which will be described later.

[0123] 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.

[0124] 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.

[0125] 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.

[0126] The first housing 1120 may include a first housing side 1121, a second housing side 1122, a third housing side 1123, and a housing wall 1124, which will be described in detail below.

[0127] The first member 1126 may be disposed in the first housing 1120. A portion of the first member 1126 may be penetrated by the second member 1131a. The first member 1126 may be disposed within the housing. The first member 1126 may be an integral or separate structure from the first housing 1120.

[0128] Furthermore, the first camera actuator 1100 may further include a plate CP disposed on the outside of the first member 1126. The plate CP may prevent foreign matter from entering the second member 1131a, etc., which penetrates the first member 1126. Furthermore, the plate CP may be made of a magnetic material. Therefore, the plate CP has magnetism, and may not generate magnetic force with respect to the first magnetic body 1143 and the second magnetic body 1142, which have polarity for pressure application. In other words, the generation of magnetic force that interferes with the actuation (pressure application) of the first magnetic body 1143 and the second magnetic body 1142 may be reduced.

[0129] When such a plate CP is made of a magnetic material, it may be called a magnetic member, a magnetic material, a cover plate, a metal member, a metal plate, or the like.

[0130] The mover 1130 includes a holder 1131 and an optical member 1132 attached to the holder 1131 .

[0131] 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 first 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 first member 1126, respectively.

[0132] In addition, the holder 1131 may include a second member 1131a disposed in the fourth mounting groove. The second member 1131a may be coupled to the holder 1131 by passing through the first member 1126. The second member 1131a and the holder 1131 may be coupled to each other using various joining or coupling members, which will be described in detail later.

[0133] The optical member 1132 may be mounted in the holder 1131. To this end, the holder 1131 may have a mounting surface, which may be formed as a receiving groove. In the following embodiment, the optical member 1132 may be a mirror or a prism. Although a prism will be illustrated below, the optical member 1132 may be made of a plurality of lenses as in the previous embodiment. Alternatively, the optical member 1132 may be made of a plurality of lenses and a prism or mirror. The optical member 1132 may also include a reflecting portion disposed therein. However, the present invention is not limited thereto.

[0134] 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 extend the light path while minimizing its thickness, thereby providing a high range of magnification.

[0135] Additionally, the second member 1131a may be coupled to the holder 1131. The second member 1131a may be disposed outside the holder 1131 and inside the housing. The second 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 of the holder 1131. Through this, the second member 1131a may be coupled to the holder 1131, and at least a portion of the first member 1126 may be positioned between the second member 1131a and the holder 1131. For example, at least a portion of the first member 1126 may be positioned in the space formed between the second member 1131a and the holder 1131. As described above, the second member 1131a may pass through holes (the first and second through holes described below) formed in the first member 1126.

[0136] Also, the second 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 second member 1131a may be formed integrally with the holder 1131, but will be described below as a separate structure.

[0137] The rotating part 1140 includes a tilting guide part 1141, a second magnetic body 1142 and a first magnetic body 1143 having the same polarity so as to apply pressure to the tilting guide part 1141.

[0138] The tilting guide portion 1141 may be coupled to the mover 1130 and the first housing 1120 described above. Specifically, the tilting guide portion 1141 may be disposed between the holder 1131 and the first member 1126. As a result, the tilting guide portion 1141 may 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 may be disposed between the first member 1126 and the holder 1131. Specifically, the tilting guide portion 1141 may be positioned between the first member 1126 and the fourth mounting groove of the holder 1131. For example, at least a portion of the tilting guide portion 1141 may be positioned in the fourth mounting groove.

[0139] The second member 1131a, the first member 1126, the tilting guide 1141, and the holder 1131 may be arranged in this order in the third direction (Z-axis direction). The second magnetic body 1142 and the first magnetic body 1143 may be mounted in the first groove gr1 formed in the second member 1131a and the second groove gr2 formed in the first member 1126, respectively. In this embodiment, the first groove gr1 and the second groove gr2 may be positioned differently from the first and second grooves described in the previous embodiments. However, the first groove gr1 is located within the second member 1131a and moves integrally with the holder and the second member 1131a, while the second groove gr2 is located on the first member 1126 corresponding to the first groove gr1 and is coupled to the first housing 1120. For this reason, these terms will be used interchangeably. Furthermore, the first and second grooves may be grooves, as described above. Alternatively, the first and second grooves may be replaced with holes.

[0140] Also, the tilting guide unit 1141 may be disposed adjacent to the optical axis, so that the actuator according to the embodiment can easily change the optical path by tilting along the first and second axes, which will be described later.

[0141] 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.

[0142] As described above, the second magnetic body 1142 can be located within the second member 1131a, and the first magnetic body 1143 can be located within the first member 1126.

[0143] The second magnetic body 1142 and the first magnetic body 1143 may have the same polarity. For example, the second magnetic body 1142 may be a magnet with a north pole, and the first magnetic body 1143 may be a magnet with a north pole. Or, conversely, the second magnetic body 1142 may be a magnet with a south pole, and the first magnetic body 1143 may be a magnet with a south pole. For example, as described above, the first pole surface of the first magnetic body 1143 and the second pole surface of the second magnetic body 1142 facing the first pole surface may have the same polarity.

[0144] The second magnetic body 1142 and the first magnetic body 1143 can generate a repulsive force between them due to the polarity. With this configuration, the repulsive force can be applied to the second member 1131a or holder 1131 coupled to the second magnetic body 1142 and the first member 1126 or first housing 1120 coupled to the first magnetic body 1143. At this time, the repulsive force applied to the second member 1131a can be transmitted to the holder 1131 coupled to the second member 1131a. As a result, the tilting guide unit 1141 disposed between the second member 1131a and the first member 1126 can be compressed by the repulsive force. Furthermore, the repulsive force can also be transmitted to the housing and the mover. As a result, the housing and the mover can be compressed by the repulsive force. In other words, the repulsive force can correspond to a maintaining force that maintains the position between the housing and the mover. That is, the repulsive force can maintain the tilting guide unit 1141 positioned between the holder 1131 and the first housing 1120 (or the first member 1126). With this configuration, the position between the mover 1130 and the first housing 1120 can be maintained even during X-axis or Y-axis tilt. Also, the tilting guide unit can be closely attached to the first member 1126 and the holder 1131 due to the repulsive force between the first magnetic body 1143 and the second magnetic body 1142. In other words, the repulsive force between the first magnetic body 1143 and the second magnetic body 1142 can be a force that maintains the position between the holder 1131 and the first housing 1120.

[0145] The first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor unit 1153, a first substrate unit 1154, and a yoke unit 1155, which will be described later. The yoke unit 1155 may be referred to as the "first yoke unit" in the first camera actuator, and the yoke unit in the second camera actuator may be referred to as the "second yoke unit."

[0146] Figure 6a is an oblique view of the first housing of the first camera actuator in the embodiment, Figure 6b is an oblique view in a different direction from Figure 6a, Figure 6c is a front view of the first housing of the first camera actuator in the embodiment, Figure 6d is a rear view of the first housing of the first camera actuator in the embodiment, and Figure 6e is a top view of the first housing of the first camera actuator in the embodiment.

[0147] 6a to 6e, the first housing 1120 according to the embodiment may include a first housing side portion 1121 to a third housing side portion 1123. In addition, the first member 1126 may be combined with the first housing 1120 to form a single unit. Thus, the first member 1126 may be included in the first housing 1120. Alternatively, the first housing 1120 may include the first member 1126.

[0148] The first housing side 1121 and the second housing side 1122 may be arranged to face each other. Also, the first member 1216a and the housing wall 1124 may be arranged to face each other. Furthermore, the housing wall 1124 may be equally applied to a camera actuator structure that does not include a first member or a second member. That is, even in a structure in which a mover is tilted within a housing, the fixed housing may include a housing wall.

[0149] And the third housing side 1123 can be disposed between the first housing side 1121 and the second housing side 1122 .

[0150] The third housing side 1123 may be in contact with the first housing side 1121 and the second housing side 1122. The third housing side 1123 may be the bottom surface of the first housing 1120. The above-mentioned description regarding the direction may also be applied.

[0151] 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.

[0152] 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.

[0153] Also, the first housing side 1121 and the second housing side 1122 may be side surfaces of the first housing 1120 .

[0154] The first coil and the second coil may be coupled to the first substrate unit. In an embodiment, the first coil and the second coil may be electrically connected to the first substrate unit so that a current may flow through the first coil and the second coil. This current is an element of an electromagnetic force that allows the second camera actuator to tilt about the X-axis.

[0155] Additionally, the third housing side portion 1123 may include a third housing hole 1123a.

[0156] A third coil (described later) may be positioned in the third housing hole 1123a. Also, the third coil 1152c may be electrically connected to and coupled with the first substrate portion that contacts the first housing 1120. As a result, the third coil is electrically connected to the first substrate portion and can receive current from the first substrate portion. This current is an element of electromagnetic force that allows the second camera actuator to tilt around the Y-axis.

[0157] A first member 1126 may be attached between the first housing side portion 1121 to the third housing side portion 1123. Accordingly, the first member 1126 may be positioned on the third housing side portion 1123. For example, the first member 1126 may be positioned on one side. The first member 1126 and the holder may be positioned in order based on the third direction.

[0158] In addition, the first housing 1120 may include a receiving portion 1125 formed by the first housing side portion 1121 to the third housing side portion 1123. The receiving portion 1125 may include components such as a first member 1126, a second member 1131a, and a mover 1130. The receiving portion 1125 may include a mover, a tilting guide, etc.

[0159] The first housing 1120 may further include a housing wall 1124 facing the first member 1126. The housing wall 1124 may be disposed between the first housing side 1121 and the second housing side 1122 and may contact the first housing side 1121, the second housing side 1122, and the third housing side 1123.

[0160] Furthermore, the housing wall 1124 may be located at the end of the first housing side 1121 and the second housing side 1122. That is, there may be a plurality of housing walls 1124. A plurality of housing walls 1124 may be located on each of the first housing side 1121 and the second housing side 1122. The plurality of housing walls 1124 may be spaced apart in the second direction (Y-axis direction). This allows light reflected from the optical member 1132 to travel to the second camera actuator at the rear end through the spaced apart areas. In other words, the spaced apart areas provide a path for light to travel.

[0161] In addition, the housing wall 1124 may include protrusions or grooves to facilitate easy connection with another adjacent camera actuator (second camera actuator). This configuration provides an optical path and improves the connection strength between the housing wall 1124, in which the opening providing the optical path is formed, and other components, thereby suppressing movement of the opening due to separation, etc., and minimizing changes in the optical path.

[0162] More specifically, the housing wall 1124 may be disposed on a side corresponding to the exit surface of the optical element. Furthermore, the housing wall 1124 may be located between the first housing side 1121 and the second housing side 1122, and may be located at the ends of the first housing side 1121 and the second housing side 1122 in the optical axis direction. As a result, the housing wall 1124 may be located at the rear end of the accommodating portion 1125 along the optical axis direction. Furthermore, the housing wall 1124 may be located at the rear end of the optical element in the optical axis direction (Z-axis direction).

[0163] The housing wall 1124 may overlap with the holder in the optical axis direction (Z-axis direction). The housing wall 1124 may also at least partially overlap with the holder in the optical axis direction. Here, the optical axis direction (Z-axis direction) may correspond to the movement direction of the reflected light. The optical axis direction may also correspond to the direction perpendicular to the light exit surface of the optical member. As a result, even if the mover, i.e., the holder, is tilted, the amount of movement may be limited by the housing wall 1124 for image stabilization. Furthermore, the housing wall 1124 and the holder may not collide with each other, causing an impact on the first member or the second member. This may improve the reliability of the first member and the second member.

[0164] The housing wall 1124 may be integral with the first housing 1120. A portion of the housing wall 1124 may be made of an elastic material. An elastic member may be additionally disposed on the housing wall 1124. This may reduce the impact on the holder 1131 when the housing wall 1124 and the holder 1131 collide.

[0165] In addition, the housing wall 1124 according to the embodiment may include a wall 1124a that faces (or corresponds to) the rear surface of the holder (or the exit surface of the optical element) and a housing extension 1124b that extends from the wall 1124a to the top of the holder.

[0166] The wall portion 1124a can overlap the holder in the optical axis direction (Z-axis direction), and the housing extension portion 1124b can overlap the holder in the first direction.

[0167] The wall 1124a can act as a stopper against tilting of the holder in the first direction or the second direction, that is, when the holder is tilted, the holder and the wall 1124a can collide or come into contact with each other.

[0168] When the holder moves in the first direction or tilts along the second axis (e.g., up and down), the housing extension 1124b can collide with or come into contact with the holder. That is, the housing extension 1124b can act as a stopper against the movement of the holder in the first direction. Furthermore, the third housing side 1123 can also function as a stopper.

[0169] Also, as described above, the first member 1126 may be configured to be combined with the first housing 1120 and included in the first housing 1120. For example, the first member 1126 may be a structure that is integrated with or separate from the first housing 1120. Hereinafter, the first member 1126 will be described as a structure that is separate from the first housing 1120.

[0170] The first member 1126 may then be disposed in the first housing 1120. Alternatively, the first member 1126 may be located within the first housing 1120.

[0171] The first member 1126 can be coupled to the first housing 1120. For example, the first member 1126 can be located between the first housing side 1121 and the second housing side 1122. The first member 1126 can be located on the third housing side 1123 and can contact the third housing side within the first housing side.

[0172] A first stop member 1121b may be located on the inner surface of the first housing side portion 1121. A second stop member 1122b may be located on the inner surface of the second housing side portion 1122.

[0173] The first stop member 1121b and the second stop member 1122b may be positioned symmetrically with respect to the first direction (X-axis direction). The first stop member 1121b and the second stop member 1122b may be extended in the first direction (X-axis direction). With this configuration, even if the first member 1126 moves into the first housing 1120, the position can be maintained by the first stop member 1121b and the second stop member 1122b. In other words, the first stop member 1121b and the second stop member 1122b can maintain the first member 1126 positioned on one side of the first housing 1120.

[0174] Furthermore, the first stop member 1121b and the second stop member 1122b fix the position of the first member 1126 and fix the position of the tilting guide between the first member 1126 and the mover, thereby eliminating error factors such as vibration, etc. As a result, the first camera actuator according to this embodiment can accurately perform X-axis tilt and Y-axis tilt.

[0175] Furthermore, the distance between the first stop member 1121b and the second stop member 1122b in the second direction (Y-axis direction) may be smaller than the maximum length of the first member 1126 in the second direction (Y-axis direction). As such, the first member 1126 can be assembled to or inserted into the side of the first housing 1120 and coupled to the first housing 1120. Furthermore, the holder can be assembled to the first housing 1120 along the first direction. As described above, the first member 1126 can be coupled to the first housing 1120 along the side, i.e., the optical axis direction. Then, the second member can be assembled to or inserted into the first member 1126 along the optical axis direction. As such, the second member can penetrate the first member 1126. Afterwards, a plate can be additionally disposed on the first member 1126.

[0176] The first member 1126 also includes a second protrusion groove PH2 to which the second protrusion of the tilting guide portion is attached. The second protrusion groove PH2 may be located on an inner surface 1126s1 of the first member 1126. The same description as for the first protrusion groove, as described below, may apply to the second protrusion groove PH2. For example, the second protrusion groove PH2 may be multiple and may have the same or different contact points as the second protrusion of the tilting guide portion. For example, the second protrusion groove PH2 may be two in number, and may have a four-point or eight-point contact structure. That is, the second protrusion groove PH2 may be formed of multiple inclined surfaces. The second protrusion groove PH2 may also be a hemispherical groove.

[0177] The first member 1126 is arranged so that the protrusion (e.g., the second protrusion) of the tilting guide portion is adjacent to the optical member (prism) in the fourth mounting groove, and the protrusion, which is the reference axis of tilt, is arranged 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 the tilt can be minimized. As a result, the consumption of current driving the coil is also minimized, and the power consumption of the camera actuator can be reduced.

[0178] The first member 1126 may also include through holes 1126a and 1126b. The number of through holes may be a first through hole 1126a and a second through hole 1126b.

[0179] The first and second extensions of the second member (described later) can pass through the first through-hole 1126a and the second through-hole 1126b, respectively. This allows a holding force between the first and second magnetic bodies to be generated. In other words, the relative positions of the first housing and the mover can be maintained even when the mover tilts.

[0180] A second protrusion groove PH2 may be located 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 first member 1126, thereby preventing a decrease in tilt accuracy caused by the tilting guide part 1141 moving within the first housing.

[0181] Additionally, a second groove gr2 may be located on the outer surface 1126s2 of the first member 1126. A first magnetic body may be attached to the second groove gr2. The outer surface 1126s2 of the first member 1126 may face or be opposite to the inner surface of the second member or the member base. The second magnetic body attached to the second member and the first magnetic body of the first member 1126 may face each other and generate the repulsive force described above. As a result, the first member 1126 presses the tilting guide member or the holder inward by the repulsive force, so that the mover can be spaced a predetermined distance from the third housing side within the first housing without injecting current into the coil. In other words, a maintaining force that maintains the position of the mover, the housing, and the tilting guide member may be generated by the first and second magnetic bodies.

[0182] Furthermore, if the first member 1126 is integral with the first housing 1120, the bonding strength between the first member 1126 and the first housing 1120 can be improved, thereby improving the reliability of the camera actuator. Furthermore, if the first member 1126 and the first housing 1120 are separate, the ease of assembly and manufacturing of the first member 1126 and the first housing 1120 can be improved.

[0183] In the embodiment, the first 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.

[0184] The first 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 first member 1126. That is, the first 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).

[0185] Therefore, the first member 1126 may have improved rigidity by having the upper member UA. For example, the rigidity of the first 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 this embodiment may be improved.

[0186] Furthermore, a first coupling groove 1126k may be located on the outer surface 1126s2 of the first member 1126. The first coupling groove 1126k may be located on the edge of the outer surface 1126s2 of the first member 1126. In particular, the first coupling groove 1126k may be located at an end (e.g., left or right side) of the outer surface 1126s2 of the first member 1126 and may be located adjacent to the first housing side portion 1121.

[0187] The first coupling groove 1126k may be positioned to correspond to the second coupling grooves 1121m, 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 correspond to (or face) the second coupling grooves 1121m, 1122m of the first housing side portion 1121 and the second housing side portion 1122. The second coupling grooves 1121m, 1122m may be positioned on a side surface adjacent to and flush with the outer surface 1126s2 of the first member 1126 described above.

[0188] 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.

[0189] 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 portion (or the second housing side portion) and the first member 1126 to improve the bonding strength between the first housing 1120 and the first member 1126. Such a bonding material may include, but is not limited to, epoxy.

[0190] The first member 1126 may further include a first protrusion 1126c and a second protrusion 1126d. The first protrusion 1126c may contact the first housing side portion 1121, and the second protrusion 1126d may contact the second housing side portion 1122. The first protrusion 1126c may extend in the third direction (Z-axis direction) from one end of the outer surface 1126s2 of the first member. The second protrusion 1126d may extend in the third direction (Z-axis direction) from the other end of the outer surface 1126s2 of the first member. That is, the first and second protrusions may extend toward the holder.

[0191] The position of the first protrusion can be maintained by the first stop member 1121b, and the position of the second protrusion can be maintained by the second stop member 1122b. As a result, the reliability of the camera actuator according to this embodiment can be improved.

[0192] As described above, the housing wall 1124 according to the embodiment may include a wall 1124a and a housing extension 1124b.

[0193] The housing wall portion 1124 or the wall portion 1124a may overlap in the optical axis direction (Z-axis direction) with the first through hole 1126a and the second through hole 1126b of the first member 1126. For example, the housing wall portion 1124 or the wall portion 1124a may partially overlap in the optical axis direction (Z-axis direction) with the first through hole 1126a and the second through hole 1126b of the first member 1126.

[0194] The second protrusion groove PH2 may be located between adjacent wall portions 1124a. The housing wall portion 1124 or the wall portion 1124a may not overlap with the second protrusion groove PH2 along the optical axis direction (Z-axis direction).

[0195] This configuration can increase the effective area for light reflected and emitted through the optical members located between adjacent wall portions 1124a.

[0196] Furthermore, the distance between adjacent housing extensions 1124b (separation distance in the second direction) may be small along the optical axis. This configuration may increase the amount of light incident on the optical element. Furthermore, the housing extensions 1124b may adequately function as a stopper against tilting of the holder.

[0197] In addition, the third housing hole 1123a may be located between adjacent housing extensions 1124b, that is, the third housing hole 1123a and the housing extensions 1124b may not overlap in the first direction (X-axis direction) but may be offset from each other.

[0198] FIG. 7 is a perspective view of an optical member of the first camera actuator according to the embodiment.

[0199] The optical element 1132 may be mounted on a holder. The optical element 1132 may be a reflecting part such as a right-angle prism, but is not limited thereto.

[0200] As an example, the optical member 1132 may have a protrusion (not shown) on a portion of its outer surface. The optical member 1132 can be easily coupled to the holder through the protrusion (not shown). Alternatively, the holder may have a groove or protrusion to couple to the optical member 1132.

[0201] The optical member 1132 may be mounted such that the bottom surface 1132b thereof is on the mounting surface of the holder. This allows the bottom surface 1132b of the optical member 1132 to correspond to the mounting surface of the holder. The bottom surface 1132b of the optical member 1132 may be a reflective surface. The top surface of the optical member 1132 may be an incident surface through which light is incident. The back surface of the optical member 1132 may be an exit surface through which light is emitted.

[0202] In addition, in an embodiment, the bottom surface 1132b may be formed as an inclined surface in the same manner as the holder is attached, so that the prism moves with the movement of the holder, and the optical member 1132 can be prevented from being separated from the holder due to the movement.

[0203] Alternatively, a groove may be formed in the bottom surface 1132b of the optical member 1132 and a bonding material may be applied thereto, so that the optical member 1132 can be coupled to the holder. Alternatively, a bonding material may be applied to the groove or protrusion of the holder, so that the holder can be coupled to the optical member 1132.

[0204] In addition, the protrusion of the holder can face the housing wall portion described below. Furthermore, the protrusion of the holder can overlap the optical member 1132 in the optical axis direction. Therefore, in this embodiment, the protrusion of the holder can not overlap the housing wall portion in the optical axis direction.

[0205] As described above, the optical member 1132 may be configured with a structure that can reflect light reflected from the outside (e.g., an object) back into the camera module. In the illustrated embodiment, the optical member 1132 may be configured with a single mirror. The optical member 1132 can also 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 provide a wide range of magnification by extending the optical path while minimizing its thickness. It should also be understood that the camera module including the camera actuator according to the illustrated embodiment can provide a wide range of magnification by extending the optical path while minimizing its thickness.

[0206] Figure 8a is an oblique view of the holder of the first camera actuator according to the embodiment, Figure 8b is a bottom view of the holder of the first camera actuator according to the embodiment, Figure 8c is a front view of the holder of the first camera actuator according to the embodiment, Figure 8d is a rear view of the second member of the first camera actuator according to the embodiment, and Figure 8e is a bottom view of the second member of the first camera actuator according to the embodiment.

[0207] 8a to 8e, the holder 1131 may include a mounting surface 1131o on which the optical member 1132 is mounted. The mounting surface 1131o may be an inclined surface. The holder 1131 may also include a step on the upper part of the mounting surface 1131o. The step on the holder 1131 may be coupled with a protrusion (not shown) of the optical member 1132.

[0208] 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.

[0209] 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).

[0210] 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.

[0211] 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).

[0212] 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 second magnet 1151b may be arranged in the second mounting groove 1131S2a. The first magnet 1151a and the second magnet 1151b may also be arranged symmetrically with respect to each other based on the first direction (X-axis direction). It should be understood that the first to third magnets may be coupled to the housing through a yoke or a connecting member in this specification. The polarities of the first magnet and the second magnet may be opposite to each other. For example, the north and south poles of the first magnet may be arranged sequentially in the third direction, and the south and north poles of the second magnet may be arranged sequentially in the third direction. Alternatively, the polarities of the first magnet and the second magnet may be the same by adjusting the injection or direction of current into the first and second coils.

[0213] As described above, depending on the positions of the first and second mounting grooves and the first and second magnets, the electromagnetic force induced by each magnet can be applied to the first holder outer surface S1131S1 and the second holder outer surface S1131S2 on the same axis. For example, the area on the first holder outer surface S1131S1 to which the electromagnetic force is applied (e.g., the area where the electromagnetic force is strongest) and the area on the second holder outer surface S1131S2 to which the electromagnetic force is applied (e.g., the area where the electromagnetic force is strongest) can be positioned on an axis parallel to the second direction (Y-axis direction). This allows for accurate X-axis tilting.

[0214] A first magnet may be disposed in the first mounting groove 1131S1a, and a second magnet may be disposed in the second mounting groove 1131S2a.

[0215] 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.

[0216] The third holder outer surface 1131S3 may include a third mounting groove 1131S3a. A third magnet 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.

[0217] 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 third magnet in the third mounting groove 1131S3a and the third coil in the third housing hole 1123a may be positioned to face each other. The third magnet and the third coil may generate an electromagnetic force, thereby tilting the second camera actuator in the Y-axis direction.

[0218] Also, while X-axis tilt is achieved by multiple magnets (first and second magnets), Y-axis tilt can be achieved only by the third magnet.

[0219] In one embodiment, the third mounting groove 1131S3a may be wider than the first mounting groove 1131S1a or the second mounting groove 1131S2a. This configuration allows the Y-axis tilt to be performed by current control similar to that of the X-axis tilt.

[0220] 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 first member.

[0221] The fourth holder outer surface 1131S4 may include a fourth mounting groove 1131S4a. The tilting guide part 1141 may be positioned in the fourth mounting groove 1131S4a. The second member 1131a and the first member 1126 may be positioned in the fourth mounting groove 1131S4a. The fourth mounting groove 1131S4a may include a plurality of regions, including a first region AR1, a second region AR2, and a third region AR3.

[0222] The second member 1131a may be located in the first region AR1. That is, the first region AR1 may overlap the second member 1131a in the first direction (X-axis direction). In particular, the first region AR1 may be the region where the member base portion of the second member 1131a is located. In this case, the first region AR1 may be located on the outer surface 1131S4 of the fourth holder. That is, the first region AR1 may correspond to the region located above the fourth mounting groove 1131S4a. In this case, the first region AR1 does not have to be a region within the fourth mounting groove 1131S4a.

[0223] The first member 1126 may be located in the second region AR2. That is, the second region AR2 may overlap with the first member 1126 in the first direction (X-axis direction).

[0224] The second area AR2 may be located on the outer surface 1131S4 of the fourth holder like the first area 1131S4. That is, the second area AR2 may correspond to an area located above the fourth mounting groove 1131S4a.

[0225] The tilting guide unit may be located in the third region AR3. In particular, the base of the tilting guide unit may be located in the third region AR3. That is, the third region AR3 may overlap the tilting guide unit (e.g., the base) in the first direction (X-axis direction).

[0226] Also, the second area AR2 may be located between the first area AR1 and the third area AR3.

[0227] A second member 1131a is disposed in the first region AR1, and the second member 1131a may include a first groove gr1. As an example, the second member 1131a may include the first groove gr1 formed on the inner surface 1131aas. As described above, the second magnetic body may be disposed in the first groove gr1.

[0228] As described above, the first 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 with the second groove gr2 in the third direction (Z-axis direction).

[0229] The repulsive force generated by the second magnetic body can be transmitted to the fourth mounting groove 1131S4a of the holder 1131 through the second member, so that the holder can apply a force to the tilting guide part in the same direction as the repulsive force generated by the second magnetic body.

[0230] The first member may include a second groove gr2 formed on the outer surface thereof opposite to the first groove gr1. The first member may also include a second protrusion groove formed on the inner surface thereof as described above. A second protrusion may be attached to the second protrusion groove.

[0231] Similarly to the second magnetic body, a repulsive force generated by the first and second magnetic bodies may be applied to the first member, and the first and second members may apply pressure to the tilting guide unit disposed between the first member and the holder 1131 through the repulsive force.

[0232] A tilting guide part 1141 may be arranged in the third area AR3.

[0233] The first protrusion groove PH1 may be positioned in the fourth mounting groove 1131S4a. The first protrusion groove PH1 may accommodate the first protrusion of the tilting guide portion 1141. This allows the first protrusion 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 PR1. This also applies to the second protrusion groove and the second protrusion PR2. That is, the maximum diameter of the second protrusion groove may correspond to the maximum diameter of the second protrusion PR2. This allows the second protrusion to contact the second protrusion groove. This configuration facilitates first-axis tilting based on the first protrusion and second-axis tilting based on the second protrusion, improving the tilt radius.

[0234] 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.

[0235] The first protrusion groove PH1a and the first protrusion groove PH1b may be arranged side by side in the first direction (X-axis direction). The first protrusion groove PH1a and the first protrusion groove PH1b may have the same or different maximum widths.

[0236] 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. In addition, the width of the bottom surface may also vary among the protruding grooves.

[0237] 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.

[0238] 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.

[0239] 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.

[0240] 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.

[0241] 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 PH1a, so that the position of the first protrusion can be easily adjusted.

[0242] In one 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 surface CS2. That is, the position of the first protrusion can be easily adjusted in the first-second protrusion groove PH1b. A lubricant can be applied to the first protrusion groove PH1.

[0243] In this embodiment, the first area AR1, the second area AR2, and the third area AR3 may have different heights in the first direction (X-axis direction). In one embodiment, the first area AR1 may have a greater height in the first direction (X-axis direction) than the second area AR2 and the third area AR3. This allows a step to be formed between the first area AR1 and the second area AR2.

[0244] The second member 1131a may 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 second magnetic body may be mounted in the first groove gr1. The number of first grooves gr1 may be multiple depending on the number of second magnetic bodies. That is, the number of first grooves gr1 may correspond to the number of second magnetic bodies.

[0245] Additionally, the second member 1131a may include a member base portion 1131aa, a first extension portion 1131ab, and a second extension portion 1131ac.

[0246] 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 first member. That is, the first member may be located between the member base portion 1131aa and the tilting guide portion.

[0247] 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 applies to 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.

[0248] As a result, the second 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. As a result, the first extension portion 1131ab and the second extension portion 1131ac may be connected to each other only by the member base portion 1131aa. With this configuration, the second member 1131a may continuously receive a repulsive force from the second magnetic body mounted in the center of the member base portion 1131aa, particularly the first groove gr1.

[0249] The first extension 1131ab may be spaced apart from the second extension 1131ac in the second direction (Y-axis direction) to form a space. The first member and the tilting guide may be installed in the space. The first magnetic body and the second magnetic body may be located in the space.

[0250] In addition, the first extension 1131ab and the second extension 1131ac may have the same length in the third direction (Z-axis direction), so that the coupling force and weight are well balanced and the holder can be tilted accurately without leaning to one side.

[0251] The first extension portion 1131ab and the second extension portion 1131ac may be coupled to a 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 positioned in the fourth mounting groove 1131S4a in an area 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 positioned corresponding to the third coupling groove 1131k.

[0252] 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. This configuration allows the second member 1131a and the holder 1131 to be coupled to each other. Furthermore, this coupling allows the repulsive force applied to the second member 1131a to be transmitted to the holder 1131.

[0253] However, it should be understood that the projection and groove structures may be displaced relative to one another as previously described.

[0254] 9a is a perspective view of the tilting guide portion of the first camera actuator according to the embodiment, FIG. 9b is a perspective view in a different direction from FIG. 9a, and FIG. 9c is a view viewed from FF' in FIG. 9a.

[0255] The tilting guide member 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. Depending on the structure, the first and second protrusions may be formed on opposite sides, but this will be described below with reference to the drawings. It should be understood that the first and second protrusions PR1 and PR2 may be integrally formed with the base BS, and may have a spherical shape like a ball, as shown in the drawings. The first and second protrusions PR1 and PR2 may also be ball-shaped rather than having a protrusion or protruding shape.

[0256] 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 may be spaced apart from the second surface 1141b in the third direction (Z-axis direction), and may be outer surfaces facing each other or facing each other within the tilting guide part 1141.

[0257] 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 holder. The first protrusion PR1 may be a plurality of first protrusions PR1, including a 1-1 protrusion PR1a and a 1-2 protrusion PR1b.

[0258] 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).

[0259] The first protrusion PR1a and the first protrusion PR1b may have a curvature, for example, a hemispherical shape, and may contact the first groove of the housing at a point farthest from the first surface 1141a of the base BS.

[0260] In addition, the tilting guide portion 1141 may include a second protrusion PR2 extending from one side on the second surface 1141b. 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.

[0261] 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 an embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be bisected by a virtual line extending in the second direction (Y-axis direction).

[0262] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may have a curvature, for example, a hemispherical shape, and may contact the second member 1131a at a point spaced apart from the second surface 1141b of the base BS.

[0263] 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 portion 1141 may provide the same range (e.g., positive / negative range) in which the holder can tilt along the X-axis based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b.

[0264] 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 can have the same Y-axis tilt angle range based on the Y axis. In other words, the tilting guide portion 1141 and the holder can provide the same range of Y-axis tilt (e.g., positive / negative range) based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b.

[0265] Specifically, the first surface 1141a may include a first outer line M1, a second outer line M2, a third outer line M3, and a fourth outer line M4. The first outer line M1 and the second outer line M2 may face each other, and the third outer line M3 and the fourth outer line M4 may face each other. The third outer line M3 and the fourth outer line M4 may be located between the first outer line M1 and the second outer line M2. The first outer line M1 and the second outer line M2 may be perpendicular to the first direction (X-axis direction), while the third outer line M3 and the fourth outer line M4 may be parallel to the first direction (X-axis direction).

[0266] In this case, the first protrusion PR1 may be positioned on a first virtual line VL1. Here, the first virtual line VL1 is a line that bisects the first outer line M1 and the second outer line M2. Alternatively, the first and third virtual lines VL1 and VL1' are lines that bisect the base BS in the second direction (Y-axis direction). Accordingly, the tilting guide part 1141 can easily perform X-axis tilt through the first protrusion PR1. Furthermore, since the tilting guide part 1141 performs X-axis tilt based on the first virtual line VL1, a rotational force can be uniformly applied to the tilting guide part 1141. This allows for precise X-axis tilt and improves device reliability.

[0267] Furthermore, the first-1 protrusion PR1a and the first-2 protrusion PR1b may be disposed symmetrically with respect to the first virtual line VL1 and the second virtual line VL2. Alternatively, the first-1 protrusion PR1a and the first-2 protrusion PR1b may be disposed symmetrically with respect to the first center point. With this configuration, the supporting force exerted by the first protrusion PR1 during X-axis tilting may be equally applied to the upper and lower sides with respect to the second virtual line VL2. This may improve the reliability of the tilting guide. Here, the second virtual line VL2 is a line that bisects the third outer line M3 and the fourth outer line M4. Alternatively, the second and fourth virtual lines VL2 and VL2' are lines that bisect the base BS in the first direction (X-axis direction).

[0268] The first center point may be the intersection of the first virtual line VL1 and the second virtual line VL2, or may be a point corresponding to the center of gravity depending on the shape of the tilting guide part 1141.

[0269] The second surface 1141b may also include a fifth outer line M1', a sixth outer line M2', a seventh outer line M3', and an eighth outer line M4'. The fifth outer line M1' and the sixth outer line M2' may face each other, and the seventh outer line M3' and the eighth outer line M4' may face each other. The seventh outer line M3' and the eighth outer line M4' may be located between the fifth outer line M1' and the sixth outer line M2'. The fifth outer line M1' and the sixth outer line M2' may be perpendicular to the first direction (X-axis direction), while the seventh outer line M3' and the eighth outer line M4' may be parallel to the first direction (X-axis direction).

[0270] Furthermore, since the tilting guide unit 1141 performs the Y-axis tilt based on the fourth imaginary line 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.

[0271] In addition, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be disposed symmetrically with respect to the third virtual line VL1' on the fourth virtual line VL2'. Alternatively, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be disposed symmetrically with respect to the second center point. With this configuration, the supporting force provided 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 virtual line VL2'. This may improve the reliability of the tilting guide unit. Here, the third virtual line VL1' is a line that bisects the fifth outer line M1' and the sixth outer line M2'. The second center point may be the intersection of the third virtual line VL1' and the fourth virtual line VL2'. Alternatively, it may be a point corresponding to the center of gravity depending on the shape of the tilting guide unit 1141.

[0272] In addition, the distance DR2 in the first direction (X-axis direction) between the first-1 protrusion PR1a and the first-2 protrusion PR1b may be greater than the length of the second protrusion PR2 in the first direction (X-axis direction), thereby minimizing the resistance caused by the second protrusion PR2 when tilting in the X-axis direction based on the first-1 protrusion PR1a and the first-2 protrusion PR1b.

[0273] Accordingly, the distance ML2 between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction (Y-axis direction) may be greater than the length of the first protrusion PR1 in the second direction (Y-axis direction), thereby minimizing the resistance caused by the first protrusion PR1 when tilting in the Y-axis direction based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b.

[0274] 10a is a diagram illustrating a first driving section of a first camera actuator according to an embodiment, FIG. 10b is a perspective view of a driving coil and a first substrate section in a first camera actuator according to an embodiment, FIG. 10c is another perspective view of a driving coil and a first substrate section in a first camera actuator according to an embodiment, FIG. 10d is a front view of a driving coil and a first substrate section in a first camera actuator according to an embodiment, FIG. 10e is a plan view of a driving coil and a first substrate section in a first camera actuator according to an embodiment, FIG. 10f is a plan view of a driving coil and a first substrate section in a first camera actuator according to an embodiment, FIG. 10g is a bottom view of a driving coil and a first substrate section in a first camera actuator according to an embodiment, and FIG. 10h is a diagram illustrating a state between the coils in FIG. 10f. 10i is a cross-sectional view of the first substrate portion of a first camera actuator according to one embodiment, FIGS. 10j and 10k are drawings explaining the effects of the drive coil and first substrate portion of the first camera actuator according to the embodiment, FIG. 10l is a front view of the drive coil and first substrate portion of a first camera actuator according to another embodiment, FIG. 10m is a cross-sectional view of the first substrate portion of a first camera actuator according to another embodiment, FIG. 10n is a front view of the drive coil and first substrate portion of a first camera actuator according to yet another embodiment, FIG. 10o is a cross-sectional view of the first substrate portion of a first camera actuator according to yet another embodiment, FIG. 10p is a front view of the drive coil and first substrate portion of a first camera actuator according to yet another embodiment, and FIG. 10q is a cross-sectional view of the first substrate portion of a first camera actuator according to yet another embodiment.

[0275] 10a, the first drive unit 1150 includes a drive magnet 1151, a drive coil 1152, a Hall sensor unit 1153, a first substrate unit 1154, and a yoke unit 1155. Alternatively, the first drive unit 1150 may be separate from the first substrate unit 1154. For example, the first substrate unit 1154 may include the drive coil 1152.

[0276] 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 holder 1131, respectively.

[0277] 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.

[0278] 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.

[0279] The second camera actuator of this 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 decentering and tilting phenomena when implementing OIS and providing the best optical characteristics.

[0280] In addition, according to the embodiment, by implementing the 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.

[0281] The first substrate portion 1154 can include a first substrate side 1154a, a second substrate side 1154b, and a third substrate side 1154c.

[0282] 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.

[0283] 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.

[0284] The first substrate side portion 1154a may be coupled and electrically connected to the first coil 1152a and the first Hall sensor 1153a.

[0285] The second substrate side 1154b may be coupled and electrically connected to the second coil 1152b. It should also be understood that the second substrate side 1154b may also be coupled and electrically connected to the first Hall sensor.

[0286] The third substrate side portion 1154c may be coupled and electrically connected to the third coil 1152c and the second Hall sensor 1153b.

[0287] The yoke portion 1155 may include a third yoke 1155a, a fourth yoke 1155b, and a fifth yoke 1155c. The third yoke 1155a is positioned within the first mounting groove and can be coupled with the first magnet 1151a. The fourth yoke 1155b is positioned within the second mounting groove and can be coupled with the second magnet 1151b. The fifth yoke 1155c is positioned within the third mounting groove and can be coupled with the third magnet 1151c. These third to fifth yokes 1155a to 1155c allow the first to third magnets 1151a to 1151c to be easily mounted in the first to third mounting grooves and coupled with the housing.

[0288] 10b to 10i, in a camera actuator according to an embodiment, a first substrate unit 1154 may be connected to a holder 1131. For example, the first substrate unit 1154 may be coupled to the holder 1131 as described above.

[0289] Furthermore, a drive coil 1152 and a Hall sensor 1153 may be arranged on the first substrate unit 1154. As an example, the first coil 1152a to the third coil 1152c of the drive coil 1152 may be arranged on the first substrate unit 1154. Furthermore, the first coil 1152a to the third coil 1152c may be mounted on the first substrate unit 1154. Furthermore, the first Hall sensor 1153a and the second Hall sensor 1153b may be arranged on the first substrate unit 1154. Furthermore, the first Hall sensor 1153a and the second Hall sensor 1153b may be arranged on the first substrate unit 1154.

[0290] In addition, an attitude detection sensor GS may be disposed on the first substrate unit 1154. The attitude detection sensor GS may be mounted on the first substrate unit 1154. In addition, a driver unit (Driver IC, DI) and an actuator control unit may be disposed on the first substrate unit 1154. The driver unit DI may be mounted on the first substrate unit 1154. For example, the attitude detection sensor GS may include various sensors. For example, the attitude detection sensor GS may include a gyro sensor. In addition, in an embodiment, the first substrate unit 1154 may include the attitude detection sensor GS. Or, the first driving unit may include the attitude detection sensor GS.

[0291] Furthermore, according to the present invention, the thickness of the first substrate unit 1154 may vary depending on the position sensor GS or the driver unit DI. A specific configuration will now be described.

[0292] In an embodiment, the first substrate side portion 1154a and the second substrate side portion 1154b of the first substrate unit 1154 may have different thicknesses corresponding to the posture detection sensor GS or the driving coils (first and second coils). The substrate side may be substituted with various expressions such as "substrate region" or "substrate portion."

[0293] In this embodiment, the driver unit DI may be disposed inside the second substrate side portion 1154b. The attitude detection sensor GS may be disposed outside the second substrate side portion 1154b. Furthermore, the first coil 1152a to the third coil 1152c may be disposed inside the first substrate side portion 1154a to the third substrate side portion 1154c, respectively. The following description will be based on this. The area of ​​the second substrate side portion 1154b where the second coil 1152b is disposed may also be thicker than the other substrate sides. For example, the second substrate side portion 1154b may have first to third layers in the area where the attitude detection sensor GS and the driver unit DI are disposed. As a variant, the first to third layers may overlap the area where the attitude detection sensor GS and the driver unit DI are disposed in the second direction. Alternatively, the first to third layers may overlap the second coil 1152b in the second direction. As another example, the first to third layers may at least partially overlap the second coil 1152b in the second direction.

[0294] Additionally, the second substrate side portion 1154b and the first substrate side portion 1154a may at least partially overlap the third coil 1152c in the second direction.

[0295] Furthermore, the thickness d1 of the first substrate side portion 1154a and the thickness d2 of the second substrate side portion 1154b may be the same or different. In this embodiment, the thickness d1 of the first substrate side portion 1154a and the thickness d2 of the second substrate side portion 1154b may be the same. In this case, the thickness of the first substrate side portion 1154a and the thickness of the second substrate side portion 1154b may correspond to the length in the second direction (Y-axis direction). The thickness d3 of the third substrate side portion 1154c may correspond to the length in the first direction. The thickness d3 of the third substrate side portion 1154c may be smaller than the thickness d1 of the first substrate side portion 1154a or the thickness d2 of the second substrate side portion 1154b. However, as a modified example, a second layer L2 (described below) may also be disposed inside the third substrate side portion 1154c. Thus, the second layer L2 may be disposed between the first layer L1 and the third coil 1152c on the third substrate side portion 1153c. This allows heat generated from the third coil 1152c to be easily released through the second layer L2.

[0296] First, as mentioned above, the first substrate unit 1154 may include a first substrate side 1154a, a second substrate side 1154b facing the first substrate side 1154a, and a third substrate side 1154c disposed between the first substrate side 1154a and the second substrate side 1154b. The thickness of the first substrate side 1154a may be greater than the thicknesses of the second substrate side 1154b and the third substrate side 1154c. That is, the area or side where the gyro sensor is mounted may be thicker in the first substrate unit 1154. For example, the thickness of the second substrate side 1154b where the orientation detection sensor is disposed may be greater than the thickness of the other substrate sides. This may improve durability against heat generation.

[0297] Furthermore, the first substrate side 1154a, the second substrate side 1154b, and the third substrate side 1154c may be integral with each other or may be separate structures. Also, the first substrate side 1154a, the second substrate side 1154b, and the third substrate side 1154c may be separate members connected to each other.

[0298] Furthermore, the first substrate unit 1154 may include a first layer L1, a second layer L2 disposed inside the first layer L1, and a third layer L3 disposed outside the first layer L1. That is, the third layer L3 may be positioned opposite or facing the second layer L2 relative to the first layer L1. Alternatively, the first layer L1 may be positioned between the second layer L2 and the third layer L3. The "inner" refers to a direction toward the center of the first substrate unit 1154. For example, the "inner" may correspond to a direction from the first substrate side 1154a to the second substrate side 1154b relative to the first substrate side 1154a. The "inner" may also correspond to a direction from the second substrate side 1154b toward the first substrate side 1154a relative to the second substrate side 1154b. The "outer" may be the opposite direction to the "inner."

[0299] In this embodiment, the first layer L1 may be located over the entire area of ​​the first substrate portion 1154. For example, the first layer L1 may be present on all of the first substrate side portion 1154a to the third substrate side portion 1154c.

[0300] The first layer L1 may include a first sublayer L1a located in the center, a second sublayer L1b arranged on the outside and inside of the first sublayer L1a, a third sublayer L1c arranged on the outside and inside of the second sublayer L1b, a fourth sublayer L1d arranged on the outside and inside of the third sublayer L1c, and a fifth sublayer L1e arranged on the outside and inside of the fourth sublayer L1d.

[0301] The first sublayer L1a can include metal and polymer (a substance or molecule having an imide functional group). For example, the first sublayer L1a can be made of copper foil and polyimide. Alternatively, the first sublayer L1a can be made of polyimide with copper (Cu) laminated on the outside and inside.

[0302] The second sublayer L1b may be a layer made of a metal, for example, copper.

[0303] The third sublayer L1c may be a plating or plating layer, in which metal is plated onto an insulating plate, a through hole, or a conductor pattern by chemical or electrochemical reaction.

[0304] The fourth sub-layer L1d may be a bonding layer or a cover layer. The fourth sub-layer L1d may be a layer made of an adhesive material.

[0305] Furthermore, the fifth sublayer L1e may be a layer made of polyimide. The fifth sublayer L1e may be bonded to the first sublayer L1a, etc., after the fourth sublayer L1d is semi-cured. For example, the fourth sublayer L1d and the fifth sublayer L1e may be protective layers for the first layer L1.

[0306] Furthermore, a first insulating layer PL1 may be disposed inside the first layer L1. The first insulating layer PL1 may be an insulating layer or a bonding layer. For example, the first insulating layer PL1 may be in the form of a sheet of pre-impregnated reinforced fibers, such as PREPREG. The first insulating layer PL1 may be made of glass fiber and epoxy resin. For example, the first insulating layer PL1 may be formed by impregnating glass fiber with epoxy resin. The first insulating layer PL1 may have improved strength, elasticity, and lightweight properties. The first layer L1 may be bonded to the second layer L2 through the first insulating layer PL1.

[0307] A second insulating layer PL2 may be disposed on the outside of the first layer L1. The second insulating layer PL2 may be an insulating layer or a bonding layer. For example, the second insulating layer PL2 may be in the form of a sheet of pre-impregnated reinforced fibers, such as PREPREG. The second insulating layer PL2 may be made of glass fiber and epoxy resin. For example, the second insulating layer PL2 may be formed by impregnating glass fiber with epoxy resin. The second insulating layer PL2 may have improved strength, elasticity, and light weight. The first layer L1 may be bonded to the third layer L3 through the second insulating layer PL2.

[0308] The second layer L2 may be located inside the first layer L1 and may include a first inner sub-layer L2a, a second inner sub-layer L2b, a third inner sub-layer L2c, and a fourth inner sub-layer L2d.

[0309] The first inner sublayer L2a, the second inner sublayer L2b, the third inner sublayer L2c, and the fourth inner sublayer L2d may be stacked in this order based on the first layer L1. Of the first inner sublayer L2a, the second inner sublayer L2b, the third inner sublayer L2c, and the fourth inner sublayer L2d, the first inner sublayer L2a may be positioned closest to the first layer L1.

[0310] The first inner sublayer L2a is a core layer and may be made of FR-5, and the second inner sublayer L2b may be made of a metal, for example, copper.

[0311] The third inner sub-layer L2c may be a plating or plating layer, which may be a layer in which metal is plated onto an insulating plate, a through-hole, or a conductor pattern by a chemical or electrochemical reaction.

[0312] The fourth inner sub-layer L2d may be an insulating layer on the third inner sub-layer L2c, or may be a solder mask including an insulating ink.

[0313] The third layer L3 can be located outside the first layer L1.

[0314] The third layer L3 can include a first outer sub-layer L3a, a second outer sub-layer L3b, a third outer sub-layer L3c, and a fourth outer sub-layer L3d.

[0315] The first outer sub-layer L3a, the second outer sub-layer L3b, the third outer sub-layer L3c, and the fourth outer sub-layer L3d may be stacked in this order based on the first layer L1. Of the first outer sub-layer L3a, the second outer sub-layer L3b, the third outer sub-layer L3c, and the fourth outer sub-layer L3d, the first outer sub-layer L3a may be positioned closest to the first layer L1.

[0316] The first outer sublayer L3a is a core layer and may be made of FR-5, and the second outer sublayer L3b may be made of a metal, for example, copper.

[0317] The third outer sub-layer L3c may be a plating or plating layer, in which metal is plated onto an insulating plate, a through-hole, or a conductor pattern by chemical or electrochemical reaction.

[0318] The fourth outer sub-layer L3d may be an insulating layer on the third outer sub-layer L3c, or may be a solder mask including an insulating ink.

[0319] The first outer sub-layer L3a may be positioned corresponding to or opposite the first inner sub-layer L2a relative to the first layer L1. The second outer sub-layer L3b may be positioned corresponding to or opposite the second inner sub-layer L2b relative to the first layer L1. The third outer sub-layer L3c may be positioned corresponding to or opposite the third inner sub-layer L2c relative to the first layer L1. The fourth outer sub-layer L3d may be positioned corresponding to or opposite the fourth inner sub-layer L2d relative to the first layer L1.

[0320] For example, the second layer L2 may be disposed inside the first layer L1 and disposed on the inner sides of the first substrate side 1154a and the second substrate side 1154b. That is, the second layer L2 may be positioned adjacent to the drive coil.

[0321] Additionally, the second layer L2 can be located on the inside of the first substrate side 1154a and / or on the inside of the second substrate side 1154b.

[0322] As described above, the first layer L1 may be disposed on the first to third substrate sides 1154a to 1154c. For example, the first layer L1 may be an integrated or separate structure on the first to third substrate sides 1154a to 1154c.

[0323] Additionally, the second layer L2 and the third layer L3 may be disposed on at least one of the first substrate side 1154a and the second substrate side 1154b. For example, the second layer L2 may be disposed on at least one of the first substrate side 1154a and the second substrate side 1154b. Additionally, the third layer L3 may be disposed on at least one of the first substrate side 1154a and the second substrate side 1154b.

[0324] Furthermore, the attitude detection sensor GS may be disposed on at least one of the first substrate side 1154a and the second substrate side 1154b. For example, the attitude detection sensor GS may be disposed on the second substrate side 1154b. The second layer L2 and the third layer L3 may be disposed on the second substrate side 1154b. With this configuration, external shocks and the like may be easily absorbed by the second layer L2 and the third layer L3. As a result, the attitude detection sensor GS may provide a stable attitude detection signal against shocks. In other words, the camera actuator and camera module according to the embodiment may provide improved reliability and more accurate and stable operation.

[0325] Also, the orientation sensor GS may be disposed outside the first layer L1 on the second substrate side 1154b, and the drive coils 1152a and 1152b may be disposed inside the first layer L1 on the second substrate side 1154b.

[0326] For example, the second layer L2 may be disposed on the second substrate side 1154b corresponding to the orientation sensor Gs, and the third layer L3 may be disposed on the second substrate side 1154b corresponding to the drive coil or the second drive coil 1152b.

[0327] For example, if the second layer L2 is located inside the first layer L1, the first drive coil 1152a and the second drive coil 1152b can contact the second layer L2 located inside the first layer L1, or the first drive coil 1152a and the second drive coil 1152b can contact the first layer L1 inside the first layer L1.

[0328] Furthermore, the second layer L2 may overlap the posture detection sensor GS and the drive coil (second drive coil) in the horizontal direction (Y-axis direction). Also, the third layer L3 may overlap the posture detection sensor GS and the drive coil (second drive coil) in the horizontal direction (Y-axis direction). The horizontal direction may correspond to the second direction (Y-axis direction), which is the direction from the first substrate side 1154a to the second substrate side 1154b.

[0329] The second layer L2 may overlap the orientation sensor GS in the second direction or horizontal direction at the second substrate side 1154b, and may not overlap at least a portion of the driving coil (second coil) at the second substrate side 1154b.

[0330] Also, the third layer L3 may overlap the driving coil (second coil) on the second substrate side 1154b, and may not overlap at least a portion of the posture detection sensor on the second substrate side 1154b.

[0331] Furthermore, the position sensor GS and the driving coil (second coil) may overlap at least partially in the horizontal direction (Y-axis direction) (OV1, OV2). This configuration reduces heat dissipation from the driving coil and, as mentioned above, reduces sensitivity to shock.

[0332] The first substrate side 1154a and the second substrate side 1154b may have different lengths. The length L1 in the third direction (Z-axis direction) of the first substrate side 1154a may be greater than the length L2 in the third direction of the second substrate side 1154b. Furthermore, the length L2 in the third direction of the second substrate side 1154b may be greater than the length L3 in the third direction of the third substrate side 1154c.

[0333] Furthermore, the first layer L1 may be exposed from an end of either the first substrate side 1154a or the second substrate side 1154b. Hereinafter, the first layer L1 will be described as being exposed from the first substrate side 1154a, which is longer in the third direction. Furthermore, the exposure of the first layer L1 means that the first layer or the first insulating layer is exposed. The first substrate side 1154a may include an exposed region EA where the first layer L1 is exposed.

[0334] In other words, the first layer L1 is exposed from the end of the first substrate side 1154a, and the region EA where the first layer L1 is exposed from the first substrate side 1154A may be spaced apart from the second layer L2. In other words, the second layer L2 may not be located in the exposed region EA, or the exposed region EA may not be in contact with the second layer L2.

[0335] The exposed area EA may correspond to the connection terminals EN1-EN7 located at the ends of the outer surface of the first substrate side portion 1154a. That is, the first substrate portion 1154 may include the connection terminals EN1-EN7 arranged in correspondence with the exposed area of ​​the first layer L1 on the first substrate side portion 1154a. For example, the exposed area EA may overlap the connection terminals EN1-EN7 in the second direction. As a result, electrical connection (e.g., soldering) with a circuit board or a connector may be easily achieved through the connection terminals EN1-EN7.

[0336] The third substrate side portion 1154c may not overlap the second layer L2 and the third layer L3 in the vertical direction or the first direction (X-axis direction). Alternatively, the third substrate side portion 1154c may be offset from the second layer L2 and the third layer L3 in the vertical direction or the first direction (X-axis direction). The vertical direction may correspond to the first direction (X-axis direction) or the direction from the third substrate side portion 1153c toward the upper mover 1130.

[0337] Third coil terminals CN3a and CN3b may be located on the third substrate side portion 1152c. For example, the third coil terminals CN3a and CN3b may be located on the inner surface of the third substrate side portion 1152c or the first layer L1. The third coil terminals CN3a and Cn3b may be connected to each end of the third coil 1152c. The third coil terminals CN3a and Cn3b may be electrically connected to the driver unit DI or an external connector.

[0338] Furthermore, first coil terminals CN1a and CN1b may be positioned inside the first substrate side portion 1154a. Second coil terminals CN2a and CN2b may be positioned inside the second substrate side portion 1154b. The first coil terminals CN1a and CN1b and the second coil terminals CN2a and CN2b may overlap each other in the second direction. This allows electrical resistance due to the electrical connection to be uniform, thereby improving the electrical characteristics of the camera actuator.

[0339] The first coil terminals CN1a and CN1b may be plural. Any one of the plurality of first coil terminals may be connected to any one of the plurality of second coil terminals. For example, any one of the first coil terminals CN1b and any one of the second coil terminals CN2b overlapping in the second direction may be connected to each other. This configuration allows accurate rotation of the holder through the first coil 1152a and the second coil 1152b.

[0340] Furthermore, the first substrate side portion 1154a may include an extension portion 1154p that does not overlap with the second substrate side portion 1154b in the second direction. The extension portion 1154p may include the exposed area EA described above. Furthermore, the width W1 in the first direction from the extension portion 1154p may be greater than the width W2 of the area other than the extension portion 1154p. This makes it easy to ensure space for the connection terminals EN1 to EN7.

[0341] Furthermore, as described above, the connection terminals EN1 to EN7 may be located at the ends of the outer surface of the first substrate side portion 1154a. A plurality of nodes N1 to N7 may be located adjacent to the connection terminals EN1 to EN7. The plurality of nodes N1 to N7 may correspond one-to-one to the connection terminals EN1 to EN7. For example, the number of the plurality of nodes may be the same as the number of connection terminals. Furthermore, the nodes and connection terminals that are electrically connected to each other may be located adjacent to each other.

[0342] The third substrate side portion 1154c may include a first edge 1154c1s and a second edge 1154c2s facing each other in the third direction. The third coil 1152c may be positioned in the region between the first edge 1154c1s and the second edge 1154c2s. The distance L4 between the third coil 1152c and the first edge 1154c1s may be smaller than the distance L5 between the third coil 1152c and the second edge 1154c2s. That is, the third coil 1152c may be positioned adjacent to the first edge 1154c1s. The third coil 1152c may be positioned offset from the center of the third substrate side portion 1154c. The third coil 1152c may be positioned offset in the optical axis direction from the center of the third substrate side portion 1154c.

[0343] And as mentioned above, the third substrate side 1154c may be made of the first layer L1, in which case the third substrate side 1154c may be a flexible or flexible printed circuit board (FPCB).

[0344] The first and second substrate sides 1154a and 1154b may include a second layer L2 and / or a third layer L3 in addition to the first layer L1. Alternatively, as described below, the first and second substrate sides 1154a and 1154b may be made of a flexible-rigid printed circuit board (RFPCB) or a flexible printed circuit board (FPCB) depending on the region. With this configuration, the first and second substrate sides 1154a and 1154b may be made of a flexible-rigid printed circuit board (RFPCB). In other words, the strength and heat resistance of the first and second substrate sides 1154a and 1154b may be increased by adding the second or third layer. This may reduce malfunctions that cause changes in the output value of the posture detection sensor due to external impact or heat generated by the coil. This may also improve the reliability of the first substrate part 1154.

[0345] 10j and 10k, Fig. 10j shows the output values ​​(corresponding to data) of the attitude detection sensor for the X axis (Gyro_DC_X) or Y axis (Gyro_DC_Y) in response to an impact when the second or third layer is not FR-5. Fig. 10k shows the output values ​​of the attitude detection sensor for the X axis or Y axis in response to an impact when the second or third layer is FR-5.

[0346] That is, by disposing the second and third layers on the first and second substrate sides, the fluctuation range of the output value due to an impact may be reduced, and the output value may be a DC offset value, thereby improving the reliability and accuracy of the attitude detection sensor.

[0347] 10l and 10m, in a camera actuator according to an embodiment, the second layer L2 and the third layer L3 may be disposed on at least one of the first substrate side 1154a and the second substrate side 1154b. In a camera actuator according to another embodiment, the third layer L3 may be disposed on at least one of the first substrate side 1154a and the second substrate side 1154b. For example, the third layer L3 may be disposed on the second substrate side 1154b. And, the third substrate side 1154c may include only the first layer L1.

[0348] Accordingly, the first substrate unit 1154 may include a third layer L3 in contact with the attitude detection sensor GS. The third layer L3 may be located between the attitude detection sensor GS and the first layer L1 on the second substrate side 1154b. This may minimize fluctuations in the output value of the attitude detection sensor GS due to impact and reduce the weight of the first substrate unit.

[0349] 10n and 10o, in a camera actuator according to an embodiment, the second layer L2 and the third layer L3 may be disposed on at least one of the first substrate side 1154a and the second substrate side 1154b. In a camera actuator according to another embodiment, the third layer L3 may be disposed on at least one of the first substrate side 1154a and the second substrate side 1154b. For example, the third layer L3 may be disposed on the second substrate side 1154b.

[0350] The second layer L2 may be located on at least one of the first substrate side 1154a and the second substrate side 1154b. For example, the second layer L2 may be located on the first substrate side 1154a and the second substrate side 1154b. The third substrate side 1154c may include only the first layer L1.

[0351] Accordingly, the second substrate side portion 1154b of the first substrate unit 1154 may include a third layer L3 in contact with the orientation detection sensor GS. The third layer L3 may be located between the orientation detection sensor GS and the first layer L1 on the second substrate side portion 1154b.

[0352] The second layer L2 may be located between the second coil 1152b and the first layer L1 on the second substrate side 1154b. This may minimize fluctuations in the output value of the attitude sensor GS due to a shock. Also, heat generated from the second coil may be absorbed by the second layer L2. This may improve the reliability of the camera actuator and the camera module according to the embodiment.

[0353] In addition, the second layer L2 may be positioned between the first coil 1152a and the first layer L1 on the first substrate side 1154a. This minimizes fluctuations in the output value of the attitude sensor GS due to impact. However, the third layer L3 may not be present outside the first layer L1 on the first substrate side 1154a. This reduces the weight of the first substrate. Also, heat generated from the second coil may be absorbed by the second layer L2 through the second layer L2. This may improve the reliability of the camera actuator and camera module according to the embodiment.

[0354] 10p and 10q, in a camera actuator according to an embodiment, the second layer L2 and the third layer L3 may be disposed on at least one of the first substrate side 1154a and the second substrate side 1154b. In a camera actuator according to another embodiment, the third layer L3 may be disposed on at least one of the first substrate side 1154a and the second substrate side 1154b. For example, the third layer L3 may be disposed on the second substrate side 1154b. The third substrate side 1154c may include only the first layer L1.

[0355] The second layer L2 may be located on at least one of the first substrate side 1154a and the second substrate side 1154b. For example, the second layer L2 may be located on the first substrate side 1154a and the second substrate side 1154b. The third substrate side 1154c may include only the first layer L1.

[0356] In particular, the second layer L2 may be positioned corresponding to the driving coil so as to be in contact with the driving coil, and the third layer L3 may be positioned corresponding to the attitude detection sensor GS, so that the third layer L3 may be in contact with the attitude detection sensor.

[0357] In other words, the second substrate side portion 1154b of the first substrate unit 1154 may include a third layer L3 in contact with the orientation detection sensor GS. The third layer L3 may be located between the orientation detection sensor GS and the first layer L1 on the second substrate side portion 1154b. The second layer L2 may be located between the second coil 1152b and the first layer L1 on the second substrate side portion 1154b. This minimizes fluctuations in the output value of the orientation detection sensor GS due to a shock. Furthermore, heat generated from the second coil may be absorbed by the second layer L2. This may improve the reliability of the camera actuator and camera module according to the embodiment.

[0358] Additionally, the second layer L2 may be positioned between the first coil 1152a and the first layer L1 on the first substrate side 1154a. However, as described above, the second layer L2 may be positioned to overlap the first coil 1152a in the horizontal direction. In other words, the second layer L2 may be positioned to contact the first coil 1152a or correspond to the first coil 1152a. This may minimize fluctuations in the output value of the orientation sensor GS due to a shock. However, the third layer L3 may not be present outside the first layer L1 on the first substrate side 1154a. This may reduce the weight of the first substrate. Also, heat generated from the second coil may be absorbed by the second layer L2 through the second layer L2. This may improve the reliability of the camera actuator and camera module according to the embodiment.

[0359] 11a is a perspective view of the first camera actuator according to the embodiment, FIG. 11b is a view seen from PP' in FIG. 11a, and FIG. 11c is a view seen from QQ' in FIG. 11a.

[0360] 11a to 11c, 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).

[0361] 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).

[0362] 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).

[0363] 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.

[0364] In addition, the second protrusions PR2a and PR2b of the tilting guide portion 1141 may contact the first member 1126 of the first housing 1120. The second protrusion PR2 may be mounted in a second protrusion groove PH2 formed on one side of the first 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 portion 1141 and the mover 1130 to move along the second direction.

[0365] Also, as described above, the first Hall sensor 1153a may be located on the outside for electrical connection and coupling with the first substrate unit 1154. However, the location is not limited to this.

[0366] In addition, 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.

[0367] 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.

[0368] The second member 1131a is disposed in the first region AR1, and the second member 1131a may include a first groove gr1 formed on its inner surface. The second magnetic body 1142 is disposed in the first groove gr1 as described above, and the repulsive force RF2 generated by the second magnetic body 1142 can be transmitted to the fourth mounting groove 1131S4a of the holder 1131 via the second member 1131a, RF2'. This allows the holder 1131 to apply a force to the tilting guide part 1141 in the same direction as the repulsive force RF2 generated by the second magnetic body 1142.

[0369] The first member 1126 may be disposed in the second region AR2. The first member 1126 may include a second groove gr2 facing the first groove gr1. The first member 1126 may also include a second protrusion groove PH2 disposed on a surface corresponding to the second groove gr2. A repulsive force RF1 generated by the first magnetic body 1143 may be applied to the first member 1126. Accordingly, the first member 1126 and the second member 1131a may pressurize the tilting guide part 1141 disposed between the first member 1126 and the holder 1131 through the generated repulsive forces RF1 and RF2'. As a result, the coupling (or position) between the holder 1131, the first housing 1120, and the tilting guide part 1141 may be maintained even after the holder is tilted in the X-axis or Y-axis direction by the current applied to the first, second, or third coil 1152c.

[0370] 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. As such, in other embodiments described below, the first protrusion PR1 and the second protrusion PR2 may be variously positioned on opposing surfaces of the base.

[0371] The first protrusion groove PH1 may be positioned in the fourth mounting groove 1131S4a. The first protrusion groove PH1 may receive the first protrusion portion PR1 of the tilting guide portion 1141. As a result, the first protrusion portion PR1 may contact the first protrusion groove PH1. 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 PH2 and the second protrusion portion PR2. With this configuration, a first axis tilt based on the first protrusion portion PR1 and a second axis tilt based on the second protrusion portion PR2 may easily occur, thereby improving the tilt radius.

[0372] In addition, the tilting guide portion 1141 may be arranged alongside the second member 1131a and the first member 1126 in the third direction (Z-axis direction), and the tilting guide portion 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 portion may be positioned adjacent to the center of gravity of the holder. As a result, the camera actuator of the embodiment can minimize the moment value that tilts the holder, and can also minimize the amount of current consumed by the coil section, etc., to tilt the holder, thereby improving power consumption and element reliability.

[0373] In addition, the second magnetic body 1142 and the first magnetic body 1143 may not overlap with the third coil 1152c or the optical member 1132 in the first direction (X-axis direction). In other words, in this embodiment, the second magnetic body 1142 and the first magnetic body 1143 may be spaced apart from the third coil 1152c or the optical member 1132 in the third direction (Z-axis direction). This minimizes the magnetic force transmitted from the second magnetic body 1142 and the first magnetic body 1143 to the third coil 1152c. As a result, the camera actuator according to this embodiment can easily perform up and down drive (Y-axis tilt) and minimize power consumption.

[0374] Furthermore, as described above, the second Hall sensor 1153b located inside the third coil 1152c senses the change in magnetic flux, thereby performing position sensing between the third magnet 1151c and the second Hall sensor 1153b. At this time, the offset voltage of the second Hall sensor 1153b may change due to the influence of the magnetic field formed by the second magnetic body 1142 and the first magnetic body 1143.

[0375] Based on the outermost surface, the first camera actuator according to this embodiment may be arranged in the third direction in the following order: second member 1131a, second magnetic body 1142, first magnetic body 1143, first member 1126, tilting guide unit 1141, and holder 1131. However, the second magnetic body is located within the second member, and the first magnetic body is located within the first member, and the second member, first member, tilting guide unit, and holder may be arranged in this order.

[0376] In this embodiment, the second magnetic body 1142 and the first magnetic body 1143 may be spaced apart from the holder 1131 (or the optical member 1132) in the third direction by a distance greater than the distance between the tilting guides 1141. This allows the second Hall sensor 1153b at the bottom of the holder 1131 to be spaced apart from the second magnetic body 1142 and the first magnetic body 1143 by a predetermined distance. This minimizes the influence of the magnetic field formed by the second magnetic body 1142 and the first magnetic body 1143 on the second Hall sensor 1153b, preventing the Hall voltage from concentrating positively or negatively and becoming saturated. This configuration allows the Hall electrode to have a range in which Hall calibration can be performed. Furthermore, temperature also affects the Hall sensor electrodes, causing the resolution of a camera lens to vary depending on the temperature. In this embodiment, however, the Hall voltage is prevented from concentrating positively or negatively, and the lens resolution is compensated accordingly, thereby easily preventing a decrease in resolution.

[0377] In addition, a circuit can be easily designed to compensate for an offset in the output (ie, Hall voltage) of the second Hall sensor 1153b.

[0378] Also, according to the embodiment, a portion of the tilting guide part 1141 relative to the outer surface of the fourth holder of the holder 1131 may be positioned outside the outer surface of the fourth holder.

[0379] The tilting guide portion 1141, excluding the first protrusion PR1 and the second protrusion PR2, can be mounted in the fourth mounting groove 1131S4a with the base as the reference. In other words, the length of the base in the third direction (Z-axis direction) may be shorter than the length of the fourth mounting groove 1131S4a in the third direction (Z-axis direction). This configuration facilitates miniaturization.

[0380] In addition, the tilting guide portion 1141 may have a maximum length in the third direction (Z-axis direction) greater than the length of the fourth mounting groove 1131S4a in the third direction (Z-axis direction). This allows the end of the second protrusion portion PR2 to be positioned between the outer surface of the fourth holder and the first member 1126, as described above. That is, at least a portion of the second protrusion portion PR2 may be positioned in the opposite direction in the third direction (Z-axis direction) from the holder 1131. In other words, the holder 1131 may be spaced a predetermined distance in the third direction (Z-axis direction) from the end of the second protrusion portion PR2 (the portion contacting the second protrusion groove).

[0381] Furthermore, the front surface 1131aes of the second member 1131a according to the embodiment may be spaced apart from the front surface 1126es of the first member 1126. In particular, the front surface 1131aes of the second member 1131a according to the embodiment may be positioned toward the third direction (Z-axis direction) from the front surface 1126es of the first member 1126. Alternatively, the front surface 1131aes of the second member 1131a according to the embodiment may be positioned inside the front surface 1126es of the first member 1126. For this reason, the first member 1126 may have a structure that is extended and bent inward. Furthermore, a portion of the second member 1131a may be positioned in a groove formed by the extension and bent structure of the first member 1126 described above.

[0382] With this configuration, the second member 1131a is positioned inside the first member 1126, thereby improving space efficiency and achieving a compact size. Furthermore, even when actuated by electromagnetic force (tilting or rotating the mover 1130), the second member 1131a does not protrude outside the first member 1126, so contact with surrounding elements can be blocked, thereby improving reliability.

[0383] Also, a predetermined space may exist between the second magnetic body 1142 and the first magnetic body 1143. In other words, the second magnetic body 1142 and the first magnetic body 1143 may face each other with the same polarity.

[0384] 12a is a perspective view of a first camera actuator according to an embodiment, FIG. 12b is a view viewed from SS' in FIG. 12a, and FIG. 12c is an illustrative view of the movement of the first camera actuator shown in FIG. 12b.

[0385] 12a to 12c, the first camera actuator according to the embodiment may perform Y-axis tilt, i.e., rotate in a first direction (X-axis direction) to implement OIS.

[0386] 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).

[0387] Specifically, the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 may be transmitted to the second member 1131a and the first member 1126, and ultimately to the tilting guide unit 1141 disposed between the first member 1126 and the holder 1131. Accordingly, the tilting guide unit 1141 may be pressed by the mover 1130 and the first housing 1120 due to the repulsive force.

[0388] Also, the second protrusion PR2 may be supported by the first member 1126. In this case, in an embodiment, the tilting guide part 1141 may rotate or tilt around the second direction (Y-axis direction) as a reference axis (or rotation axis) of the second protrusion PR2 protruding toward the first member 1126. 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 first member 1126 as a reference axis (or rotation axis).

[0389] For example, the first electromagnetic forces F1A and F1B between the third magnet 1151c arranged in the third mounting groove and the fifth coil part 1152c arranged on the side of the third substrate rotate the mover 1130 by a first angle θ1 in the X-axis direction (X1->X1a), thereby realizing OIS.

[0390] Conversely, the first electromagnetic forces F1A and F1B between the third magnet 1151c arranged in the third mounting groove and the fifth coil part 1152c arranged on the side of the third substrate rotate the mover 1130 at the first angle θ1 in the opposite direction of the X-axis (X1->X1b), thereby realizing OIS.

[0391] The first angle θ1 can be ±1° to ±3°, but is not limited to this.

[0392] In the first camera actuator according to various embodiments, the electromagnetic force may generate a force in a described direction to move the mover, or may generate a force in another direction to move the mover in the described direction. That is, the described electromagnetic force direction refers to the direction of the force generated by the magnet and coil to move the mover. For example, the first electromagnetic forces F1A and F1B may act in a third direction or a direction opposite to the third direction.

[0393] Furthermore, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be arranged side by side along the third direction (Z-axis direction). In other words, the center line TL1 connecting the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be parallel to the third direction (Z-axis direction).

[0394] The bisector TL2, which bisects the second protrusion PR2 and corresponds to the third direction (Z-axis direction), can be aligned with the center line TL1 (or the bisector). In other words, the bisector TL2 can be a line that bisects the second protrusion PR2 in the first direction (X-axis direction), and there can be multiple bisectors TL2.

[0395] In one embodiment, the bisector TL2 may be spaced apart from the centerline TL1 in the first direction (X-axis direction). The bisector TL2 may be located above the centerline TL1. This configuration increases the distance between the third coil 1152c or the third magnet 1151c, allowing the holder to tilt along two axes more accurately. Furthermore, the holder's position can be maintained the same even when no current is applied to the coil.

[0396] More specifically, since the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are spaced apart in the first direction (X-axis direction) from the bisector TL2, a force (e.g., a repulsive force) between the second magnetic body 1142 and the first magnetic body 1143 can act in the first direction (X-axis direction) away from the bisector TL2 corresponding to the optical axis. This force generates momentum in the mover 1130. However, if the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are located on the bisector TL2, there is a problem in that the calibration progress is not maintained after the tilting guide unit and the second magnetic body 1142 are tilted. That is, the camera actuator of the embodiment prevents the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 from being positioned on the bisector TL2, so that the positions of the tilting guide part and the second magnetic body 1142 can be maintained after tilting or rotation.

[0397] In another embodiment, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be spaced apart in the first direction (X-axis direction).

[0398] In addition, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may not be located on the bisector TL2. For example, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be located above the bisector TL2.

[0399] This increases the separation distance between the third coil 1152c or the third magnet 1151c, allowing the holder to tilt more accurately along two axes. Furthermore, the position of the holder can be maintained the same even when no current is applied to the coil.

[0400] In addition, the second magnetic body 1142 and the first magnetic body 1143 may have different lengths in the first direction (X-axis direction).

[0401] As an embodiment, the second magnetic body 1142 coupled to the second member 1131a and tilted together with the mover 1130 may have a larger area than the first magnetic body 1143. For example, the length of the second magnetic body 1142 in the first direction (X-axis direction) may be larger than the length of the first magnetic body 1143 in the first direction (X-axis direction). Also, the length of the second magnetic body 1142 in the second direction (Y-axis direction) may be larger than the length of the first magnetic body 1143 in the second direction (Y-axis direction). Also, the first magnetic body 1143 may be located within an imaginary straight line extending both ends of the second magnetic body 1142 in the third direction.

[0402] With this configuration, even if one magnetic body (e.g., the second magnetic body) is tilted during tilting or rotation, it is possible to easily prevent other forces other than a vertical force from being generated due to the tilt. That is, even if the second magnetic body is tilted up and down together with the mover 1130, it is possible to prevent the first magnetic body 1143 from receiving a force (e.g., a repulsive force or an attractive force) that opposes the tilt. This can improve driving efficiency.

[0403] FIG. 13a is a view seen from RR' in FIG. 12a, and FIG. 13b is an example view of the movement of the first camera actuator shown in FIG. 13a.

[0404] 13a and 13b, X-axis tilting can be performed, i.e., OIS can be implemented by tilting or rotating the mover 1130 in the Y-axis direction.

[0405] 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).

[0406] Specifically, the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 may be transmitted to the first member 1126 and the holder 1131, and ultimately to the tilting guide unit 1141 disposed between the holder 1131 and the first member 1126. Accordingly, the tilting guide unit 1141 may be pressed by the mover 1130 and the first housing 1120 due to the repulsive force.

[0407] 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, in this 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).

[0408] 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°.

[0409] As described above, the electromagnetic force generated by the first and second magnets 1151a and 1151b and the first and second coils 1152a and 1152b can act in the third direction or in the direction opposite to the third direction. For example, the electromagnetic force can be generated in the third direction (Z-axis direction) from the left side of the mover 1130 and act in the direction opposite to the third direction (Z-axis direction) from 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.

[0410] 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 first housing, thereby minimizing the occurrence of decentering and tilting phenomena when implementing the OIS and providing the best optical characteristics. Also, as described above, "Y-axis tilt" means rotation or tilting in the first direction (X-axis direction), and "X-axis tilt" means rotation or tilting in the second direction (Y-axis direction).

[0411] Figure 14 is a perspective view of the second camera actuator according to the embodiment, Figure 15 is an exploded perspective view of the second camera actuator according to the embodiment, Figure 16 is a view from DD' in Figure 14, Figures 17a, 17b and 17c are perspective views of the second housing of the second camera actuator according to the embodiment, Figures 18 and 19 are views explaining each drive of the lens assembly according to the embodiment, and Figure 20 is a view explaining the drive of the second camera actuator according to the embodiment.

[0412] 14 to 16, 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 rear optical unit 1260, a second substrate unit 1270, a joint member 1280, a stopper unit ST, and a yoke unit YK. In addition, the second camera actuator 1200 may further include a second shielding can (not shown), an elastic unit (not shown), and a joint member (not shown).

[0413] 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 unit 1220, second housing 1230, second drive unit 1250, rear end optical unit 1260, second substrate unit 1270, and image sensor).

[0414] Furthermore, the second camera actuator 1200 may be a separate component from the image sensor and base component described below, or may include these components. In the following description, it is assumed that a main board unit or circuit board 1300 separate from the second camera actuator 1200 includes the image sensor and base component.

[0415] 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.

[0416] The lens unit 1220 may be located within a second shielding can (not shown). The lens unit 1220 may move along a third direction (Z-axis direction or optical axis direction). Accordingly, the above-mentioned AF function and zoom function may be performed.

[0417] In addition, the lens unit 1220 may be located within the second housing 1230. Thus, at least a portion of the lens unit 1220 may move within the second housing 1230 along the optical axis direction or the third direction (Z-axis direction).

[0418] Specifically, the lens unit 1220 can include a lens group 1221 and a moving assembly 1222 .

[0419] First, the lens group 1221 can include at least one lens. Also, although there can be a plurality of lens groups 1221, the following description will be given based on one lens group.

[0420] The lens group 1221 is coupled to the moving assembly 1222 and can move in the third direction (Z-axis direction) by the electromagnetic force generated by the fourth magnet 1252a and the fifth magnet 1252b coupled to the moving assembly 1222.

[0421] As an example, the lens group 1221 may include a first lens group 1221a, a second lens group 1221b, and a third lens group 1221c. The first lens group 1221a, the second lens group 1221b, and the third lens group 1221c may be arranged in that order along the optical axis. Furthermore, the lens group 1221 may further include a fourth lens group 1221d. The fourth lens group 1221d may be arranged at the rear end of the third lens group 1221c.

[0422] The first lens group 1221a may be fixedly coupled to the second housing 2. In other words, the first lens group 1221a may not move along the optical axis.

[0423] The second lens group 1221b is coupled with the first lens assembly 1222a and can move in the third direction or the optical axis direction. Magnification can be adjusted by moving the first lens assembly 1222a and the second lens group 1221b.

[0424] The third lens group 1221c is coupled to the second lens assembly 1222b and can move in a third direction or in the optical axis direction. The movement of the third lens group 1221c can perform focus adjustment or autofocusing.

[0425] However, the number of lens groups is not limited to this, and the fourth lens group 1221d described above may be omitted, or an additional lens group other than the fourth lens group 1121d may be further disposed.

[0426] The moving assembly 1222 may include an open area surrounding the lens group 1221. Such a moving assembly 1222 may be used in combination with a lens assembly. The moving assembly 1222 may be coupled to the lens group 1221 in various ways. The moving assembly 1222 may also include grooves on its side, through which the fourth magnet 1252a and the fifth magnet 1252b may be coupled. A coupling material may be applied to the grooves.

[0427] Additionally, the moving assembly 1222 may be coupled to elastic members (not shown) at its upper and rear ends. As a result, the moving assembly 1222 may move in the third direction (Z-axis direction) but be supported by the elastic members (not shown). That is, the position of the moving assembly 1222 may be maintained in the third direction (Z-axis direction). The elastic members (not shown) may be formed of various elastic elements such as a leaf spring.

[0428] The translation assembly 1222 is located within a second housing 1230 and can include a first lens assembly 1222a and a second lens assembly 1222b.

[0429] The area where the third lens group 1221c of the second lens assembly 1222b is mounted may be located at the rear end of the first lens assembly 1222a. In other words, the area where the third lens group 1221c of the second lens assembly 1222b is mounted may be located between the area where the second lens group 1221b of the first lens assembly 1222a is mounted and the image sensor.

[0430] The first lens assembly 1222a and the second lens assembly 1222b may be mounted inside the 2-2 housing. For example, the recess in which the ball is disposed in the first lens assembly 1222a may be positioned facing the first side. The recess in which the ball is disposed in the second lens assembly 1222b may be positioned facing the second side. This will be described in more detail below.

[0431] Second drive magnets may be attached to the outer surfaces of the first lens assembly 1222a and the second lens assembly 1222b. For example, a fifth magnet 1252b may be attached to the outer surface of the second lens assembly 1222b. A fourth magnet 1252a may be attached to the outer surface of the first lens assembly 1222a.

[0432] 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.

[0433] The second housing 1230 may include a second housing 1231 and a second housing 1232. The second housing 1231 may be coupled to the first lens group 1221a and the first camera actuator. The second housing 1231 may be located in front of the second housing 1232.

[0434] The second housing 1232 may be located at the rear end of the first housing 1231. The lens unit 1220 may be mounted inside the second housing 1232.

[0435] The second housing 1230 (or the second-second housing 1232) may have holes formed on its side. The fourth coil 1251a and the fifth coil 1251b may be disposed in the holes. The holes may be positioned to correspond to the grooves of the moving assembly 1222 described above.

[0436] As an example, the second housing 1230 (particularly, the second housing 1232) may include a first side 1232a and a second side 1232b. The first side 1232a and the second side 1232b may be positioned corresponding to each other. For example, the first side 1232a and the second side 1232b may be arranged symmetrically with respect to the third direction. A second driving coil 1251 may be positioned on the first side 1232a and the second side 1232b. A second substrate 1270 may be attached to outer surfaces of the first side 1232a and the second side 1232b. In other words, the first substrate 1271 may be positioned on the outer surface of the first side 1232a, and the second substrate 1272 may be positioned on the outer surface of the second side 1232b. The second housing 1230 may also include a third side 1232c. In this case, the third side portion 1232c may be perpendicular to the optical axis, and may be connected to the first side portion 1232a and the second side portion 1232b.

[0437] Furthermore, the third side portion 1232c may correspond to an outer surface perpendicular to the optical axis of the second housing 1230. For example, the third side portion 1232c may correspond to a "first side surface."

[0438] The first side 1232a and the second side 1232b may correspond to the "second side" and the "third side" of the second housing 1230, respectively.

[0439] In this regard, the second side may be connected to the first side. The third side may be connected to the first side. The second side and the third side may be positioned to face each other. This corresponds to the positional relationship between the second side and the third side described above.

[0440] As another example, the first and second guide grooves facing the recesses (mounting grooves in which the first and second balls are mounted) of the first lens assembly 1222a may be located on the first side. The first and second guide grooves facing the recesses of the second lens assembly 1222b may be located on the second side. In this case, a separate member (e.g., a guide portion) including the first and second guide grooves may be combined with the second-second housing 1232. However, this embodiment will be described based on an integrated structure in which the first and second guide grooves are formed in the second-second housing 1232. As in other examples, the first and second guide portions may be positioned corresponding to each other. For example, the first and second guide portions may be positioned opposite each other in the third direction (Z-axis direction). The first and second guide portions may also at least partially overlap each other in the second direction (Y-axis direction).

[0441] The first guide part and the second guide part may include at least one groove (e.g., guide groove) or recess, and the first ball B1 or the second ball B2 may be mounted in the groove or recess, thereby allowing the first ball B1 or the second ball B2 to move in the third direction (Z-axis direction) within the guide groove of the first guide part or the guide groove of the second guide part.

[0442] Alternatively, the first ball B1 or the second ball B2 can move in a third direction along a rail formed on the inside of the first side 1232a of the second housing 1230 or a rail formed on the inside of the second side 1232b of the second housing 1230.

[0443] This allows the first lens assembly 1222a and the second lens assembly 1222b to move in a third direction.

[0444] According to an embodiment, the first ball B1 may be disposed on an upper side of the first lens assembly 1222a or the second lens assembly 1222b. The second ball B2 may be disposed on a lower side of the first lens assembly 1222a or the second lens assembly 1222b. For example, the first ball B1 may be located above the second ball B2. Therefore, depending on the position, the first ball B1 may at least partially overlap the second ball B2 along the first direction (X-axis direction).

[0445] The 2-2 housing 1232 may also include first guide grooves GG1a and GG2a facing the first recess RS1. The 2-2 housing 1232 may also include second guide grooves GG1b and GG2b facing the second recess RS2. The first guide grooves GG1a and GG2a and the second guide grooves GG1b and GG2b may be grooves extending in the third direction (Z-axis direction). The first guide grooves GG1a and GG2a and the second guide grooves GG1b and GG2b may have different shapes. For example, the first guide grooves GG1a and GG2a may be grooves with inclined sides, and the second guide grooves GG1b and GG2b may be grooves with sides perpendicular to the bottom.

[0446] A fourth magnet and a fourth coil may be located on the first side, and a fifth magnet and a fifth coil may be located on the second side. The fifth magnet 1252b may be located opposite the fifth coil 1251b, and the fourth magnet 1252a may be located opposite the fourth coil 1251a.

[0447] 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 moving assembly 1222. The second elastic member (not shown) may be coupled to the lower surface of the moving assembly 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 for the movement of the moving assembly 1222. However, the positions are not limited to those described above, and the elastic portion may be arranged in various positions.

[0448] The second driving unit 1250 may provide a driving force for moving 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. The second driving unit 1250 may further include a second Hall sensor unit. The second Hall sensor unit 1253 includes at least one fourth Hall sensor 1253a and may be located inside or outside the second driving coil 1251.

[0449] The electromagnetic force formed between the second drive coil 1251 and the second drive magnet 1252 allows the moving assembly to move in the third direction (Z-axis direction).

[0450] 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.

[0451] 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 moving assembly 1222 and may be positioned to correspond to the fourth coil 1251 a and the fifth coil 1251 b.

[0452] The rear optic 1260 can include a lens such as glass.

[0453] A base portion or base member of the circuit board may be located between the lens portion 1220 and the image sensor IS. Components such as a filter may be fixed to the base member. The base member may also be arranged to surround the image sensor. This configuration may free the image sensor from foreign matter, improving the reliability of the device. However, this may be omitted in some of the following drawings. However, the present invention is not limited to this structure.

[0454] The second camera actuator 1200 may be a zoom actuator and an auto focus (AF) actuator. For example, the second camera actuator may support one or more lenses and perform at least one of an auto focus function and a zoom function by moving the lenses in response to a control signal from a predetermined controller.

[0455] And the second camera actuator can be a fixed zoom or a continuous zoom. For example, the second camera actuator can provide movement of lens group 1221.

[0456] Furthermore, the second camera actuator may be composed of multiple lens assemblies. For example, the second camera actuator may include at least one of a third lens assembly (not shown) and a guide pin (not shown) in addition to the first lens assembly 1222a and the second lens assembly 1222b. The above-mentioned contents may apply to this. As a result, the second camera actuator may perform a high-magnification zoom function through the second driver. For example, the first lens assembly 1222a and the second lens assembly 1222b may be moving lenses that move via the second driver and the 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 may function as a variator that refocuses the image focused by the third lens assembly (not shown), which is a condenser, at another location. Meanwhile, the first lens assembly may experience a large change in magnification due to a large change in the distance to the subject or the image distance, and the first lens assembly, which is a variator, 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, which is a variator, may vary slightly depending on the position. Therefore, the second lens assembly may perform a position compensation function for the image formed by the variator. For example, the second lens assembly may perform a compensator function that accurately focuses the image point formed by the second lens assembly 1222b, which is a variator, at the actual image sensor position. However, the configuration of this embodiment will be described with reference to the following drawings.

[0457] The image sensor may be located inside or outside the second camera actuator. In an embodiment, the image sensor may be located outside the second camera actuator as shown. For example, the image sensor may be located on a circuit board. The image sensor may receive light and convert the received light into an electrical signal. The image sensor may also be configured as an array of a plurality of pixels. The image sensor may be located on the optical axis.

[0458] The second substrate portion 1270 can be in contact with the side of the second housing. For example, the second substrate portion 1270 can be located on the outer surface of the first side (first side surface) and the outer surface of the second side (second side surface) of the second housing, in particular, the second-second housing, and can be in contact with the first side surface and the second side surface.

[0459] The stopper portion ST includes a first stopper ST1 disposed at one end of the second housing 1232 and a second stopper ST2 disposed at the other end of the second housing 1232. The first stopper ST1 and the second stopper ST2 may be disposed in order along the optical axis direction.

[0460] Furthermore, there may be a plurality of first stoppers ST1, each disposed on the movement path of the first lens assembly and the movement path of the second lens assembly. For convenience, these will be referred to as first-1 stoppers ST1a and first-2 stoppers ST1b. Similarly, there may be a plurality of second stoppers ST2, each disposed on the movement path of the first lens assembly and the movement path of the second lens assembly. These will be referred to as second-1 stoppers ST2a and second-2 stoppers ST2b.

[0461] A first stopper ST1a and a second stopper ST2a may be positioned on the movement path of the first lens assembly, and a first stopper ST1b and a second stopper ST2b may be positioned on the movement path of the second lens assembly.

[0462] The first-first stopper ST1a and the first-second stopper ST1b may overlap in the second direction, or the first-first stopper ST1a and the first-second stopper ST1b may be misaligned in the second direction.

[0463] The second stopper ST2a and the second stopper ST2b may be positioned offset in the second direction. The distance in the third direction between the first stopper ST1a and the second stopper ST2a may be smaller than the distance between the first stopper ST1b and the second stopper ST2b. This reflects the fact that the movable distance (stroke) of the first lens assembly is smaller than the movable distance (stroke) of the second lens assembly.

[0464] As an example, the second yoke portion or yoke portion YK may be disposed outside the second drive portion. For example, the yoke portion YK may be disposed outside the fourth and fifth coils. The second yoke portion YK may include a first yoke YK1 and a second yoke YK2.

[0465] The first yoke YK1 and the second yoke YK2 may be disposed opposite each other, for example, the first yoke YK1 and the second yoke YK2 may be positioned to correspond to each other with respect to the optical axis.

[0466] The first yoke YK1 may be positioned adjacent to the fourth coil 1251a. The second yoke YK2 may be positioned adjacent to the fifth coil 1251b. The fourth coil 1251a and the fifth coil 1251b may be positioned inside the first yoke YK1 and the second yoke YK2. The first yoke YK1, the fourth coil 1251a, the fifth coil 1251b, and the second yoke YK2 may be arranged in this order in one direction (e.g., the second direction). The first yoke YK1 may form an attractive force with the fourth magnet. The second yoke YK2 may form an attractive force with the fifth magnet. This may allow the postures of the first and second lens assemblies to be maintained.

[0467] Furthermore, the thickness of the first yoke YK1 and the second yoke YK2 may vary in some areas. This configuration can prevent the magnetic force generated by the fourth and fifth magnets or the fourth and fifth coils from affecting other magnets and coils. For example, the first yoke YK1 can prevent the magnetic force generated by the fourth magnet from being applied to the fifth magnet and fifth coil.

[0468] 17a, 17b, and 17c, as described above, the second housing 1230 (particularly, the second housing 1232) may include a first side 1232a and a second side 1232b. The first side 1232a and the second side 1232b may be positioned corresponding to each other. For example, the first side 1232a and the second side 1232b may be arranged symmetrically with respect to the third direction. A second driving coil may be positioned on the first side 1232a and the second side 1232b. A second substrate unit may be attached to the outer surfaces of the first side 1232a and the second side 1232b. The second substrate unit may be positioned outside the driving coil and electrically connected to the driving coil.

[0469] For example, a first substrate may be located on the outer surface of the first side portion 1232a, and a second substrate may be located on the outer surface of the second side portion 1232b.

[0470] Furthermore, first guide grooves GG1a and GG1b, in which the first and second balls are mounted, may be located on the inner surface of the first side portion 1232a. The first guide grooves GG1a and GG1b may face the first and second recesses described above. Similarly, second guide grooves GG2a and GG2b, in which the first and second balls are mounted, may be located on the inner surface of the second side portion 1232b. The first guide grooves GG1a and GG1b may face the first and second recesses described above.

[0471] Furthermore, the first side portion 1232a may include a first side hole 1232ah. A fourth magnet may be positioned in the first side hole 1232ah. Furthermore, the first side hole 1232ah may have a length in the first direction smaller than that of the fourth coil.

[0472] The second side portion 1232b may include a second side hole 1232bh. A fifth magnet may be positioned in the second side hole 1232bh. Furthermore, the second side hole 1232bh may have a length in the first direction that is smaller than that of the fifth coil.

[0473] Furthermore, the second housing 1232 may include a housing hole 1232h disposed at either the top or bottom thereof, through which coupling may be easily performed or inspection (e.g., vision inspection) of the first and second lens assemblies may be performed.

[0474] The first guide grooves GG1a and GG1b located on the first side portion 1232a may extend in the third direction. Furthermore, the first guide grooves GG1a and GG1b may have different shapes. For example, one of the first guide grooves GG1a may be an inclined groove, and the other GG1b may have a flat structure. This also applies to the second guide grooves GG2a and GG2b. The first and second balls may be mounted in the inclined groove and flat structure, allowing the first or second lens assembly to move along the optical axis.

[0475] Referring to Figures 18 and 19, in the camera device of the embodiment, an electromagnetic force DEM1 is generated between the fourth magnet 1252a and the fourth coil 1251a, and the first lens assembly 1222a can move horizontally to the optical axis, i.e., in the third direction (Z-axis direction) or in the direction opposite to the third direction, along a rail located on the inner surface of the housing through the first ball B1 and the second ball B2.

[0476] Specifically, in the camera device according to the embodiment, the fourth magnet 1252a may be provided to the first lens assembly 1222a by, for example, a vertical magnetization method. For example, in the embodiment, the north and south poles of the fourth magnet 1252a may be positioned to face the fourth coil 1251a. Accordingly, the north and south poles of the fourth magnet 1252a may be arranged to correspond to regions of the fourth coil 1251a where current flows in the X-axis direction or the opposite direction.

[0477] In this embodiment, when a magnetic force is applied from the N pole of the fourth magnet 1252a in the opposite direction to the second direction (Y-axis direction), and a current DE1 flows from the fourth coil 1251a corresponding to the N pole in the opposite direction to the first direction (X-axis direction), an electromagnetic force DEM1 can act in the third direction (Z-axis direction) due to the interaction of electromagnetic forces (for example, Fleming's left-hand rule).

[0478] In addition, in the embodiment, when a magnetic force is applied in the second direction (Y-axis direction) from the S pole of the fourth magnet 1252a, and a current DE1 flows in the first direction (X-axis direction) from the fourth coil 1251a corresponding to the S pole, an electromagnetic force DEM1 can act in the Z-axis direction due to the interaction of the electromagnetic forces.

[0479] At this time, because the fourth coil 1251a is fixed to the side of the second housing, the first lens assembly 1222a, in which the fourth magnet 1252a is disposed, can move in the opposite direction of the Z-axis due to the electromagnetic force DEM1 depending on the direction of the current. That is, the second drive magnet can move in the opposite direction of the electromagnetic force applied to the second drive coil. Furthermore, the direction of the electromagnetic force can be changed depending on the current in the coil and the magnetic force of the magnet.

[0480] Therefore, the first lens assembly 1222a can move along the rails located on the inner surface of the housing via the first ball B1 and the second ball B2 in the third direction or in a direction parallel to the optical axis direction (both directions). At this time, the electromagnetic force DEM1 can be controlled in proportion to the current DE1 applied to the fourth coil 1251a.

[0481] The first lens assembly 1222a or the second lens assembly 1222b may include a first recess RS1 in which the first ball B1 is mounted. The first lens assembly 1222a or the second lens assembly 1222b may also include a second recess RS2 in which the second ball B2 is mounted. The first recess RS1 may have a predetermined length in the optical axis direction (Z-axis direction). The second recess RS2 may have a predetermined length in the optical axis direction (Z-axis direction). Accordingly, the movement distance of the first ball B1 and the second ball B2 in the optical axis direction within each recess may be adjustable. In other words, the first recess RS1 or the second recess RS2 may function as a stopper for the first and second balls B1 and B2.

[0482] In the camera device according to the embodiment, the fifth magnet 1252b may be mounted on the second lens assembly 1222b by, for example, a vertical magnetization method. For example, in the embodiment, the north and south poles of the fifth magnet 1252b may be positioned to face the fifth coil 1251b. Accordingly, the north and south poles of the fifth magnet 1252b may be disposed to correspond to a region where a current flows from the fifth coil 1251b in the X-axis direction or the opposite direction.

[0483] In this embodiment, when a magnetic force DM2 is applied in the second direction (Y-axis direction) from the N pole of the fifth magnet 1252b, and a current DE2 flows in the first direction (X-axis direction) from the fifth coil 1251b corresponding to the N pole, an electromagnetic force DEM2 can act in the third direction (Z-axis direction) due to the interaction of electromagnetic forces (for example, Fleming's left-hand rule).

[0484] In addition, in the embodiment, when a magnetic force is applied in the opposite direction in the second direction (Y-axis direction) from the S pole of the fifth magnet 1252b, and a current DE2 flows in the opposite direction in the first direction (X-axis direction) from the fifth coil 1251b corresponding to the S pole, an electromagnetic force DEM2 can act in the Z-axis direction due to the interaction of the electromagnetic forces.

[0485] At this time, because the fifth coil 1251b is fixed to the side of the second housing, the second lens assembly 1222b, on which the fifth magnet 1252b is disposed, can move in the opposite direction to the Z-axis direction due to the electromagnetic force DEM2 depending on the direction of the current. For example, as described above, the direction of the electromagnetic force can be changed depending on the current in the coil and the magnetic force of the magnet. As a result, the second lens assembly 1222b can move along the rail located on the inner surface of the second housing via the second ball B2 in a direction parallel to the third direction (Z-axis direction). At this time, the electromagnetic force DEM2 can be controlled in proportion to the current DE2 applied to the fifth coil 1251b.

[0486] 20, in the camera apparatus according to the embodiment, the second driving unit can provide driving forces F3A, F3B, F4A, and F4B that move the first lens assembly 1222a and the second lens assembly 1222b of the lens unit 1220 along the third direction (Z-axis direction). As described above, the second driving unit can include the second driving coil 1251 and the second driving magnet 1252. The electromagnetic force generated between the second driving coil 1251 and the second driving magnet 1252 can move the lens unit 1220 along the third direction (Z-axis direction).

[0487] In this case, the fourth coil 1251a and the fifth coil 1251b may be disposed in holes formed in the sides (e.g., the first side and the second side) of the second housing 1230. The fifth coil 1251b may be electrically connected to the first board 1271. The fourth coil 1251a may be electrically connected to the second board 1272. As a result, the fourth coil 1251a and the fifth coil 1251b may be supplied with a driving signal (e.g., a current) from a driver on the circuit board of the circuit board 1300 through the second board unit 1270.

[0488] At this time, the first lens assembly 1222a to which the fourth magnet 1252a is attached can move along the third direction (Z-axis direction) due to electromagnetic forces F3A and F3B between the fourth coil 1251a and the fourth magnet 1252a. Also, the second lens group 1221b attached to the first lens assembly 1222a can move along the third direction.

[0489] The second lens assembly 1222b to which the fifth magnet 1252b is attached can move along the third direction (Z-axis direction) due to electromagnetic forces F4A and F4B between the fifth coil 1251b and the fifth magnet 1252b. The third lens group 1221c attached to the second lens assembly 1222b can also move along the third direction.

[0490] Accordingly, as described above, the focal length or magnification of the optical system can be changed by moving the second lens group 1221b and the third lens group 1221c. As an example, the magnification can be changed by moving the second lens group 1221b. In other words, zooming can be performed. Furthermore, the focus can be adjusted by moving the third lens group 1221c. In other words, autofocusing can be performed. With this configuration, the second camera actuator can be a fixed zoom or a continuous zoom.

[0491] FIG. 21 is a schematic diagram illustrating a circuit board according to an embodiment.

[0492] Referring to FIG. 21 , as described above, the circuit board 1300 according to the embodiment may include a first circuit board unit 1310 and a second circuit board unit 1320. The first circuit board unit 1310 may be located below the base and coupled to the base. An image sensor IS may be disposed on the first circuit board unit 1310. The first circuit board unit 1310 and the image sensor IS may be electrically connected. That is, the base may be located at the rear end of the second camera actuator, and the image sensor and circuit board (first circuit board unit) may be located at the rear end of the base. The base may include a filter (e.g., infrared, etc.). Here, the circuit board 1300 may be referred to as a “main board unit” (described below). The first circuit board unit 1310 may be referred to as a “first unit main board” (described below). The second circuit board unit 1320 may be referred to as a “second unit main board” (described below).

[0493] The second circuit board unit 1320 may be located on a side of the base. In particular, the second circuit board unit 1320 may be located on a first side of the base. As a result, the second circuit board unit 1320 may be located adjacent to the fourth coil located adjacent to the first side, thereby facilitating electrical connection. The second circuit board unit 1320 may also be located on the second side. In this manner, there may be a plurality of second circuit board units 1320. However, the present invention is not limited to this and the second circuit board unit 1320 may be located on only one of the first side or the second side.

[0494] Furthermore, the circuit board 1300 may further include a fixed substrate (not shown) located on the side thereof, so that even if the circuit board 1300 is made of a flexible material, it can be coupled to the base while maintaining rigidity due to the fixed substrate.

[0495] The second circuit board portion 1320 of the circuit board 1300 may be located on the side of the second driving portion 1250. The circuit board 1300 may be electrically connected to the first driving portion and the second driving portion. For example, the electrical connection may be made by SMT, but is not limited to this method.

[0496] The circuit board 1300 may include a circuit board having a wiring pattern that can be electrically connected, such as a rigid printed circuit board (Rigid PCB), a flexible printed circuit board (Flexible PCB), a rigid flexible printed circuit board (Rigid Flexible PCB), etc. However, it is not limited to these types.

[0497] In addition, the circuit board 1300 may be electrically connected to other camera modules or a processor of the terminal within the terminal, so that the camera actuator and the camera device including the same can transmit and receive various signals within the terminal.

[0498] FIG. 22 is a perspective view of a first lens assembly, a first bonding member, a second bonding member, and a second lens assembly according to the embodiment.

[0499] 22, the first lens assembly 1222a and the second lens assembly 1222b may be spaced apart in the optical axis direction (Z-axis direction). The first lens assembly 1222a and the second lens assembly 1222b may be moved along the optical axis direction (Z-axis direction) by a second driving unit. For example, an autofocus or zoom function may be performed by moving the first lens assembly 1222a and the second lens assembly 1222b.

[0500] The first lens assembly 1222a may also include a first lens holder LAH1 that holds and couples the second lens group 1221b. The first lens holder LAH1 may be coupled to the second lens group 1221b. The first lens holder LAH1 may also include a first lens hole LH1 for accommodating the second lens group 1221b. That is, the second lens group 1221b, which includes at least one lens, may be disposed in the first lens hole LH1. The first lens holder LAH1 is the same as a housing portion (e.g., a first housing portion, a second housing portion) described below, and may be used interchangeably.

[0501] The second lens assembly 1222b may include a second lens holder LAH2 that holds and couples the third lens group 1221c. The second lens holder LAH2 may also include a second lens hole LH2 for accommodating the third lens group 1221c. That is, at least one lens may be disposed in the second lens hole LH2.

[0502] As an example, the first lens assembly 1222a and the second lens assembly 1222b may each include adjacent outer surfaces. The first lens assembly 1222a may include a first outer surface MM1, and the second lens assembly 1222b may include a second outer surface MM2. The first outer surface MM1 may be the bottom surface of the first lens holder LAH1 based on the optical axis direction (Z-axis direction). A third outer surface MM3 (described below) may be the top surface of the first lens holder LAH1. The second outer surface MM2 may be the top surface of the second lens holder LAH2, and the fourth outer surface MM4 may be the bottom surface of the second lens holder LAH2.

[0503] The first outer surface MM1 and the second outer surface MM2 may at least partially overlap in the optical axis direction (Z-axis direction). As an example, the first outer surface MM1 to the fourth outer surface MM4 may at least partially overlap with one another in the optical axis direction (Z-axis direction).

[0504] For example, a joining member (not shown) can contact at least one of the first outer surface MM1 and the second outer surface MM2.

[0505] FIG. 23 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

[0506] As shown in FIG. 23, 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.

[0507] 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.

[0508] The camera module 1000 processes still or video image frames acquired by an image sensor in a photography mode or a video call mode.

[0509] 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.

[0510] For example, the camera module 1000 may include a first camera module 1000A and a second camera module 1000B, and the first camera module 1000A may be capable of implementing OIS along with AF or zoom functions.

[0511] 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.

[0512] The autofocus device 1510 may include one of a surface emitting laser device package as a light emitting unit.

[0513] 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.

[0514] The autofocus device 1510 may include a light emitting portion including a vertical cavity surface emitting laser (VCSEL) semiconductor element and a light receiving portion such as a photodiode that converts optical energy into electrical energy.

[0515] FIG. 24 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

[0516] For example, FIG. 24 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.

[0517] 24, 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.

[0518] The camera sensor 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.

[0519] 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 an object included in the front image to acquire image information.

[0520] 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.

[0521] The image information may be information about an object captured in an image. The camera sensor 2000 may include an image sensor and an image processing module.

[0522] The camera sensor 2000 can process still or moving images obtained by an image sensor (eg, CMOS or CCD).

[0523] 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.

[0524] 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.

[0525] 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 in the appended claims.

Claims

1. housing; a mover disposed within the housing and including an optical element; a tilting guide portion connected to the mover within the housing; and a drive unit that rotates the mover; the drive unit includes a drive magnet, a drive coil facing the drive magnet, and a substrate unit on which the drive coil is disposed; a posture detection sensor disposed on the substrate portion; the substrate unit includes a first substrate side portion and a second substrate side portion facing the first substrate side portion and having the orientation detection sensor disposed thereon; A camera actuator, wherein the thickness of the second substrate side is greater than the thickness of the first substrate side.

2. The camera actuator of claim 1 , wherein the substrate portion includes a third substrate side portion disposed between the first substrate side portion and the second substrate side portion.

3. The camera actuator of claim 2 , wherein the substrate portion includes a first layer, a second layer disposed inside the first layer, and a third layer disposed outside the first layer.

4. The camera actuator of claim 3 , wherein the second layer is disposed on inner sides of the first substrate side and the second substrate side.

5. The camera actuator according to claim 3 , wherein the first layer is arranged on a side of the first substrate to a side of the third substrate.

6. The camera actuator of claim 3 , wherein the second layer and the third layer are disposed on at least one of the first substrate side and the second substrate side.

7. the attitude detection sensor is disposed on a side of the second substrate, The camera actuator of claim 3 , wherein the second layer and the third layer are disposed on the second substrate side.

8. the attitude detection sensor is disposed on the outer side of the first layer at the side of the second substrate, The camera actuator of claim 3 , wherein the drive coil is disposed inside the first layer on the second substrate side.

9. the second layer is disposed on a side of the second substrate corresponding to the orientation sensor; The camera actuator according to claim 3 , wherein the third layer is disposed on the second substrate side corresponding to the drive coil.

10. the second layer overlaps the attitude detection sensor and the drive coil in a horizontal direction; the third layer overlaps the attitude detection sensor and the drive coil in a horizontal direction; The camera actuator according to claim 3 , wherein the horizontal direction corresponds to a direction from the first substrate side to the second substrate side.

Images