Camera actuator and camera module including the same

Abstract

An embodiment of the present invention provides a camera actuator comprising: a housing; the first lens assembly and the second lens assembly move in the optical axis direction relative to the shell; a spherical portion positioned in the first lens assembly and the second lens assembly; and a driving portion for moving the first lens assembly and the second lens assembly, in which at least one of the first lens assembly and the second lens assembly includes: a receiving portion for receiving a lens; a guide portion in contact with the receiving portion and at which the spherical portion is positioned; and a lens protruding portion in contact with the receiving portion and corresponding to the guide portion.

Description

Technical Field

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

[0002] A camera is a device for taking pictures or videos by capturing an image of an object, and is mounted on a mobile device, a drone, a vehicle, etc. In order to improve the quality of an image, a camera module may have an image stabilizer (IS) function for correcting or preventing image shaking caused by a user's motion, an auto focus (AF) function for aligning the focus of a lens by automatically adjusting the spacing between an image sensor and a lens, and a zoom function for capturing a distant object by increasing or decreasing the magnification of the distant object with the help of a zoom lens.

[0003] However, in order to accurately perform an accurate zoom function, an AF function, etc. in a camera module, a moving lens assembly with high straightness is required. In addition, a collision absorbing structure for protecting glass of a lens assembly to provide improved optical performance, etc. is required. Summary of the invention

[0004] Technical issues

[0005] The present invention is directed to a camera actuator and a camera module including a lens assembly having high straightness.

[0006] In addition, the present invention is directed to providing a camera actuator and a camera module having improved reliability through shock absorption of a lens assembly in an AF / zoom camera actuator.

[0007] In addition, the present invention is directed to providing a camera actuator and a camera module which prevent breakage of glass in a first lens assembly.

[0008] The present invention aims to provide a camera actuator suitable for an ultra-thin, ultra-small and high-resolution camera.

[0009] The purpose of each embodiment is not limited thereto, and may also include a purpose or effect that can be determined according to a configuration or embodiment to be described below.

[0010] Technical Solution

[0011] A camera actuator according to an embodiment of the present invention includes: a housing; a first lens assembly and a second lens assembly, which move relative to the housing along an optical axis direction; a spherical part, which is positioned in the first lens assembly and the second lens assembly; and a driving part, which moves the first lens assembly and the second lens assembly, wherein at least one of the first lens assembly and the second lens assembly includes: a receiving part, which receives the lens; a guide part, which is in contact with the receiving part and the spherical part is positioned on the guide part; and a lens protruding part, which is in contact with the receiving part and corresponds to the guide part.

[0012] The guide portion may be positioned on one side surface of the receiving portion, and the lens protruding portion may be positioned on the other side surface of the receiving portion.

[0013] An upper surface of the guide portion may be disposed at a front end portion of an upper surface of the lens protruding portion.

[0014] The lower surface of the guide portion may be disposed at a rear end portion of a lower surface of the lens protruding portion.

[0015] The length of the lens protruding portion may be smaller than the length of the guide portion.

[0016] The lens protruding portion may include a plate and a support connected to the plate, and the support may be provided at a rear end portion of the plate.

[0017] The height of the plate may be greater than the height of the support.

[0018] The length of the plate may be smaller than the length of the support.

[0019] The lens protrusion may include a first pin groove provided in an upper surface of the plate.

[0020] The first pin groove may overlap with the support along the optical axis.

[0021] The guide portion may include a second pin groove provided in an upper surface of the guide portion.

[0022] At least a portion of the first pin groove and at least a portion of the second pin groove may overlap each other.

[0023] The first pin groove may be provided at a rear end portion of the second pin groove.

[0024] The guide portion may include a side plate and a wing-shaped portion provided between the side plate and the receiving portion, and a thickness of the wing-shaped portion may vary in an optical axis direction.

[0025] The wing-shaped portion may overlap the second pin groove along the optical axis.

[0026] The side plate may include a first region, a second region, and a third region disposed between the first region and the second region, the first region may include a first recess, the second region may include a second recess, and a driving yoke may be disposed in the third region.

[0027] The driving yoke may be in contact with the driving portion.

[0028] The camera actuator may include a first stopper arranged at one end of the shell and a second stopper arranged at the other end of the shell, wherein the first stopper may include a 1-1 stopper arranged at one side of the first stopper and a 1-2 stopper arranged at the other side of the first stopper, and the second stopper may include a 2-1 stopper arranged at one side of the second stopper and a 2-2 stopper arranged at the other side of the second stopper.

[0029] A distance between the 1-1 stopper and the guide portion of the first lens assembly may be smaller than a distance between the 1-2 stopper and the lens protrusion portion of the first lens assembly.

[0030] A distance between the 2-2 stopper and the guide portion of the second lens assembly may be smaller than a distance between the 2-1 stopper and the lens protrusion portion of the second lens assembly.

[0031] Beneficial effects

[0032] According to the embodiments of the present invention, a camera actuator and a camera module having a lens assembly with high straightness can be realized.

[0033] In addition, according to the present invention, a camera actuator and a camera module having improved reliability through shock absorption of a lens assembly in an AF / zoom camera actuator can be implemented.

[0034] In addition, according to the present invention, a camera actuator and a camera module that prevent glass breakage in a first lens assembly can be realized.

[0035] According to the present invention, a camera actuator suitable for an ultra-thin, ultra-small, and high-resolution camera can be realized.

[0036] Various beneficial advantages and effects of the present invention are not limited to the above contents and will be more easily understood in the process of describing the specific embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a perspective view of a camera module according to an embodiment.

[0038] Figure 2 is an exploded perspective view of a camera module according to an embodiment.

[0039] Figure 3 It is along Figure 1 View of the camera module along line AA'.

[0040] Figure 4 is a perspective view showing a first camera actuator according to an embodiment.

[0041] Figure 5 is an exploded perspective view of a first camera actuator according to an embodiment.

[0042] Figure 6a is a perspective view of a first housing of a first camera actuator according to an embodiment.

[0043] Figure 6b is with Figure 6a Stereoscopic images in different directions.

[0044] Figure 6c is a front view of a first housing of a first camera actuator according to an embodiment.

[0045] Figure 7 is a perspective view of optical components of a first camera actuator according to an embodiment.

[0046] Figure 8a is a perspective view of a holder of a first camera actuator according to an embodiment.

[0047] Figure 8b is a bottom view of a holder of a first camera actuator according to an embodiment.

[0048] Figure 8c is a front view of a holder of a first camera actuator according to an embodiment.

[0049] Figure 8d is a rear view of a second member of a first camera actuator according to an embodiment.

[0050] Figure 8e is a bottom view of a second member of a first camera actuator according to an embodiment.

[0051] Figure 9a is a perspective view of a tilt guide portion of a first camera actuator according to an embodiment.

[0052] Figure 9b is with Figure 9a Stereoscopic images in different directions.

[0053] Fig.9c It is along Figure 9a View of line F-F' in FIG.

[0054] Fig.10is a view showing a first driving portion of a first camera actuator according to an embodiment.

[0055] Fig.11a is a perspective view of a first camera actuator according to an embodiment.

[0056] Fig.11b It is along Fig.11a View of line P-P' in.

[0057] Fig.11c It is along Fig.11a View of line Q-Q' in.

[0058] Fig.12a is a perspective view of a first camera actuator according to an embodiment.

[0059] Figure 12b It is along Fig.12a View of line S-S' in FIG.

[0060] Fig.12c yes Figure 12b An exemplary view of the movement of the first camera actuator shown in FIG.

[0061] Fig.13a It is along Fig.12a View of line R-R' in FIG.

[0062] Fig.13b yes Fig.13a An exemplary view of the movement of the first camera actuator shown in FIG.

[0063] Fig.14 is a perspective view of a second camera actuator according to an embodiment.

[0064] Fig.15 is an exploded perspective view of a second camera actuator according to an embodiment.

[0065] Fig.16 It is along Fig.14 View of line D-D' in FIG.

[0066] Fig.17a , Fig.17b and Fig.17c is a perspective view of a second housing in a second camera actuator according to an embodiment.

[0067] Fig.18 and Fig.19 is a view for describing each driving of the lens assembly according to the embodiment.

[0068] Fig. 20 is a view for describing driving of a second camera actuator according to an embodiment.

[0069] Fig.21 is a schematic diagram showing a circuit board according to an embodiment.

[0070] Fig. 22 is a perspective view of a first lens assembly, a first coupling member, a second coupling member, and a second lens assembly according to an embodiment.

[0071] Fig.23 is a perspective view of a first lens assembly (or a second lens assembly) according to an embodiment.

[0072] Fig.24 is a front view of a first lens assembly (or a second lens assembly) according to an embodiment.

[0073] Fig.25 is a side view of the first lens assembly (or the second lens assembly) according to an embodiment.

[0074] Fig.26 is a rear view of the first lens assembly (or the second lens assembly) according to an embodiment.

[0075] Fig. 27 is another side view of the first lens assembly (or the second lens assembly) according to an embodiment.

[0076] Fig.28 is a cross-sectional view of a second camera actuator according to an embodiment.

[0077] Fig.29 yes Fig.28 Magnified view of portion P in FIG.

[0078] Fig.30 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

[0079] Fig.31 is a perspective view of a vehicle to which a camera module according to an embodiment is applied. DETAILED DESCRIPTION

[0080] Since the present invention can have various changes and various embodiments, specific embodiments are illustrated and described in the accompanying drawings. However, it should be understood that the present invention is not intended to limit specific embodiments, and the present invention should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

[0081] Terms including ordinal numbers such as second or first can be used to describe various components, but these components are not limited by these terms. These terms are only used for the purpose of distinguishing one component from another component. For example, without departing from the scope of the invention, the second component can be referred to as the first component, and similarly, the first component can also be referred to as the second component. The term "and / or" includes a combination of multiple associated listed items or any one of the multiple associated listed items.

[0082] When a first component is described as being “connected” or “coupled” to a second component, it should be understood that the first component may be directly connected or coupled to the second component, or a third component may exist between the first component and the second component. On the other hand, when a component is described as being “directly connected” or “directly coupled” to another component, it should be understood that no other component exists between the first component and the second component.

[0083] The terms used in this application are only used to describe specific embodiments and are not intended to limit the present invention. Unless the context clearly provides otherwise, the singular includes the plural. In this application, it should be understood that the terms "including" and "having" are intended to specify that the features, numbers, steps, operations, components, parts or combinations thereof described in this specification are present, but do not exclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0084] Unless otherwise defined, all terms used herein, including technical terms or scientific terms, have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be understood to have meanings consistent with the meanings in the context of the relevant art, and should not be interpreted in an ideal or overly formal sense unless clearly defined in this application.

[0085] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings, and the same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted.

[0086] Figure 1 is a perspective view of a camera module according to an embodiment, Figure 2 is an exploded perspective view of a camera module according to an embodiment, and Figure 3 It is along Figure 1 Cross-sectional view along line AA'.

[0087] Reference Figure 1 and Figure 2, the camera module 1000 according to the 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 used interchangeably with the "first actuator", and the second camera actuator 1200 may be used interchangeably with the "second actuator".

[0088] The cover CV may cover the first camera actuator 1100 and the second camera actuator 1200. The coupling strength between the first camera actuator 1100 and the second camera actuator 1200 may be increased by the cover CV.

[0089] In addition, the cover CV may be made of a material that blocks electromagnetic waves. Therefore, the first camera actuator 1100 and the second camera actuator 1200 in the cover CV may be easily protected.

[0090] In addition, the first camera actuator 1100 may be an optical image stabilizer (OIS) actuator. For example, the first camera actuator 1100 may move an optical member in a direction perpendicular to an optical axis (an axis of incident light).

[0091] The first camera actuator 1100 may include a fixed focal length lens disposed in a predetermined lens barrel (not shown). The fixed focal length lens may be referred to as a "single focal length lens" or a "single lens".

[0092] The first camera actuator 1100 may change the optical path. In an embodiment, the first camera actuator 1100 may vertically change the optical path through an internal optical member (e.g., a prism or a mirror). With this configuration, even when the thickness of the mobile terminal is reduced, a lens having a focal length greater than the thickness of the mobile terminal is provided in the mobile terminal through a change in the optical path, so that magnification and auto focus (AF), zoom, and OIS functions can be performed.

[0093] However, the present invention is not limited thereto, and the first camera actuator 1100 may change the optical path vertically or a plurality of times at a predetermined angle.

[0094] The second camera actuator 1200 may be provided at a rear end portion of the first camera actuator 1100. The second camera actuator 1200 may be coupled to the first camera actuator 1100. In addition, the mutual coupling may be performed in any method.

[0095] In addition, the second camera actuator 1200 may be a zoom actuator or an AF actuator. For example, the second camera actuator 1200 may support one lens or a plurality of lenses and perform an AF function or a zoom function by moving the lens according to a predetermined control signal of the control unit.

[0096] In addition, one lens or a plurality of lenses are independently or individually moved in the optical axis direction, so that the circuit board 1300 can be disposed at the rear end portion of the second camera actuator 1200 .

[0097] The circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100. In addition, a plurality of circuit boards 1300 may be provided.

[0098] The camera module according to the embodiment may be formed of one camera module or a plurality of camera modules. For example, the plurality of camera modules may include a first camera module and a second camera module.

[0099] In addition, the first camera module may include one actuator or a plurality of actuators. For example, the first camera module may include a first camera actuator 1100 and a second camera actuator 1200.

[0100] In addition, the second camera module may include an actuator (not shown) disposed in a predetermined housing (not shown) and capable of driving the lens portion. The actuator may be a voice coil motor, a microactuator, a silicon actuator, etc., and may be applied in any method such as an electrostatic method, a thermal method, a dual piezoelectric chip method, and an electrostatic force method, but the present invention is not limited thereto. In addition, in this specification, the camera actuator may be referred to as an "actuator" or the like. In addition, a camera module formed by a plurality of camera modules may be installed in any electronic device such as a mobile terminal. In addition, the actuator may be a device for moving or tilting a lens or an optical member. However, hereinafter, the actuator will be conceptually described as including a lens or an optical member. In addition, the actuator may be referred to as a "lens conveying device", a "lens moving device", an "optical member conveying device", an "optical member moving device", or the like.

[0101] Reference Figure 3 , a camera module according to an embodiment may include a first camera actuator 1100 for performing an OIS function and a second camera actuator 1200 for performing a zoom function and an AF function.

[0102] Light may be incident on the camera module or the first camera actuator through an opening area positioned in the upper surface of the first camera actuator 1100. That is, light may be incident on the first camera actuator 1100 along an optical axis direction (e.g., an X-axis direction relative to the incident light), and the optical path may be changed along a vertical direction (e.g., a Z-axis direction) by an optical member. In addition, light may pass through the second camera actuator 1200 and may be incident on the image sensor IS positioned at one end of the second camera actuator 1200 (path). In this specification, the Z-axis direction or the third direction will be described as the optical axis direction as follows.

[0103] In this specification, the lower surface represents a side in the first direction. In addition, the first direction is the X-axis direction in the drawings, and can be used interchangeably with the second axis direction, etc. The second direction is the Y-axis direction in the drawings, and can be used interchangeably with the first axis direction, etc. The second direction is a direction perpendicular to the first direction. In addition, the third direction is the Z-axis direction in the drawings, and can be used interchangeably with the third axis direction, etc. In addition, the third direction is perpendicular to both the first direction and the second direction. Here, the third direction (Z-axis direction) corresponds to the optical axis direction, and the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis. In addition, hereinafter, in the description of the first camera actuator and the second camera actuator 1200, the optical axis direction is the third direction (Z-axis direction), and the following description will be made based on this.

[0104] In addition, in the present specification, the inside may be a direction from the cover CV to the first camera actuator, and the outside may be a direction opposite to the inside. That is, the first camera actuator and the second camera actuator may be positioned on the inside of the cover CV, and the cover CV may be positioned on the outside of the first camera actuator or the second camera actuator.

[0105] In addition, with this configuration, the camera module according to the embodiment can solve the space limitation of the first camera actuator and the second camera actuator by changing the optical path. That is, the camera module according to the embodiment can extend the optical path in response to the change of the optical path while minimizing the thickness of the camera module. In addition, it should be understood that the second camera actuator can provide a wide range of magnifications by controlling the focus in the extended optical path, etc.

[0106] In addition, the camera module according to the embodiment can implement OIS by controlling an optical path passing through the first camera actuator, thereby minimizing the occurrence of decentering or tilting phenomena and providing optimal optical characteristics.

[0107] In addition, the second camera actuator 1200 may include an optical system and a lens driving part. For example, at least one of the first lens assembly, the second lens assembly, and the third lens assembly may be provided in the second camera actuator 1200.

[0108] In addition, the second camera actuator 1200 may include a coil and a magnet, and perform a high-magnification zoom function and an AF function.

[0109] For example, although the first lens assembly and the second lens assembly may be moving lenses that move through the coil, the magnet and the guide pin, and the third lens assembly may be a fixed lens, the present invention is not limited thereto. For example, the third lens assembly may perform the function of a focuser through which light forms an image at a specific position, and the first lens assembly may perform the function of a converter for re-forming the image formed by the third lens assembly as a focuser at another position. At the same time, because the distance to the object or the image distance varies to a large extent, the first lens assembly may be in a state where the magnification changes greatly, and the first lens assembly as a converter may play an important role in the focal length or magnification change of the optical system. At the same time, the imaging point of the image formed by the first lens assembly as a converter may be slightly different depending on the position. Therefore, the second lens assembly may perform a position compensation function for the image formed by the converter. For example, the second lens assembly may perform the function of a compensator using the imaging point of the image formed by the first lens assembly as a converter to accurately form an image at the actual position of the image sensor. For example, the first lens assembly and the second lens assembly may be driven by an electromagnetic force generated by the interaction between the coil and the magnet. The above description can be applied to the lens assembly to be described below. In addition, the first lens assembly to the third lens assembly can be moved along the optical axis direction, that is, along the third direction. In addition, the first lens assembly to the third lens assembly can be moved independently or dependently along the third direction. In the present invention, the first lens assembly and the second lens assembly can be moved along the optical axis direction. In addition, the third lens assembly can be positioned at the front end of the first lens assembly or at the rear end of the second lens assembly. In addition, the third lens assembly may not move along the optical axis direction. That is, the third lens assembly can be a fixed component. In addition, the first lens assembly and the second lens assembly can be moving components.

[0110] Meanwhile, when the OIS actuator and the AF actuator / zoom actuator are provided according to an embodiment of the present invention, magnetic field interference to the AF magnet / zoom magnet can be prevented when the OIS is driven. Since the first driving magnet of the first camera actuator 1100 is provided 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 hand shake correction, optical image stabilization, optical image correction, or shake correction.

[0111] Figure 4 is a perspective view of a first camera actuator according to an embodiment, and Figure 5 is an exploded perspective view of a first camera actuator according to an embodiment.

[0112] Reference Figure 4 and Figure 5 , the first camera actuator 1100 according to the embodiment includes a first housing 1120, a mover 1130, a rotating portion 1140, a first driving portion 1150, a first member 1126, and a second member 1131a.

[0113] The mover 1130 may include a holder 1131 and an optical member 1132 seated on the holder 1131. In addition, the rotating part 1140 may include an inclined guide part 1141 and a second magnet 1142 and a first magnet 1143, the second magnet 1142 and the first magnet 1143 having the same or different polarities to press the inclined guide part 1141. For example, the first magnet 1143 and the second magnet 1142 may have facing surfaces with the same polarity. In addition, the first driving part 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor part 1153, a first plate part 1154, and a yoke part 1155.

[0114] First, the first camera actuator 1100 may include a shield case (not shown). The shield case (not shown) may be positioned at the outermost portion of the first camera actuator 1100 to surround the rotating portion 1140 and the first driving portion 1150, which will be described below.

[0115] The shielding cover (not shown) may block or reduce electromagnetic waves generated from the outside. That is, the shielding cover (not shown) may reduce the occurrence of a malfunction of the rotating part 1140 or the first driving part 1150.

[0116] The first housing 1120 may be positioned inside a shield case (not shown). In the absence of a shield case, the first housing 1120 may be positioned at the outermost portion of the first camera actuator.

[0117] In addition, the first housing 1120 may be positioned inside the first plate portion 1154 described below. The first housing 1120 may be fastened by being fitted into a shield case (not shown) or mated with the shield case.

[0118] The first case 1120 may include a first case side portion 1121, a second case side portion 1122, a third case side portion 1123, and a fourth case side portion 1124. This will be described in detail below.

[0119] The first member 1126 may be disposed in the first housing 1120. The second member 1131a may pass through some areas of the first member 1126. The first member 1126 may be disposed in the housing. The first member 1126 may have a structure that is integrally formed with the first housing 1120 or is separated from the first housing 1120.

[0120] The mover 1130 may include a holder 1131 and an optical member 1132 seated on the holder 1131 .

[0121] The retainer 1131 may be seated in the receiving portion 1125 of the first housing 1120. The retainer 1131 may include first to fourth retainer outer surfaces corresponding to the first housing side portion 1121, the second housing side portion 1122, the third housing side portion 1123, and the first member 1126, respectively. For example, the first to fourth retainer outer surfaces may correspond to or face the inner surface of the first housing side portion 1121, the inner surface of the second housing side portion 1122, the inner surface of the third housing side portion 1123, and the inner surface of the first member 1126.

[0122] In addition, the holder 1131 may include a second member 1131a disposed in the fourth seating groove. The second member 1131a may be coupled to the holder 1131 through the first member 1126. The second member 1131a and the holder 1131 may be coupled through any coupling member or coupling member. This will be described in detail below.

[0123] The optical member 1132 may be seated on the holder 1131. To this end, the holder 1131 may have a seating surface, and the seating surface may be formed by a receiving groove. In an embodiment, the optical member 1132 may be formed by a mirror or a prism. Hereinafter, the optical member 1132 is shown as a prism, but the optical member 1132 may be formed by a plurality of lenses as in the above-mentioned embodiment. Alternatively, the optical member 1132 may be formed by a plurality of lenses and a prism or a mirror. In addition, the optical member 1132 may include a reflector disposed therein. However, the present invention is not limited thereto.

[0124] In addition, the optical member 1132 can reflect light reflected from the outside (e.g., an object) into the camera module. That is, the optical member 1132 can address the space limitations of the first camera actuator and the second camera actuator by changing the path of the reflected light. Therefore, it should be understood that the camera module can provide a wide range of magnifications by extending the optical path while minimizing its thickness.

[0125] In addition, the second member 1131a may be coupled to the retainer 1131. The second member 1131a may be disposed outside the retainer 1131 and inside the housing. In addition, the second member 1131a may be seated in an additional groove located in an area other than the fourth seating groove of the fourth retainer outer surface of the retainer 1131. Therefore, the second member 1131a may be coupled to the retainer 1131, and at least a portion of the first member 1126 may be positioned between the second member 1131a and the retainer 1131. For example, at least a portion of the first member 1126 may be disposed in a space formed between the second member 1131a and the retainer 1131. In addition, as described above, the second member 1131a may pass through a hole formed in the first member 1126.

[0126] In addition, the second member 1131a may have a structure separated from the holder 1131. With this configuration, the first camera actuator can be easily assembled as will be described below. Alternatively, the second member 1131a may be formed integrally with the holder 1131, but will be described below as having a separate structure.

[0127] The rotating portion 1140 includes an inclined guide portion 1141 , and second and first magnets 1142 and 1143 having the same polarity to press the inclined guide portion 1141 .

[0128] The inclined guide portion 1141 may be coupled to the mover 1130 and the first housing 1120. Specifically, the inclined guide portion 1141 may be disposed between the holder 1131 and the first member 1126. Therefore, the inclined guide portion 1141 may be coupled to the mover 1130 of the holder 1131 and the first housing 1120. However, unlike the above description, in the present embodiment, the inclined guide portion 1141 may be disposed between the first member 1126 and the holder 1131. Specifically, the inclined guide portion 1141 may be positioned between the first member 1126 and the fourth seating groove of the holder 1131. For example, at least a portion of the inclined guide portion 1141 may be positioned in the fourth seating groove.

[0129] The second member 1131a, the first member 1126, the inclined guide portion 1141 and the retainer 1131 can be arranged in sequence in the third direction (Z-axis direction). In addition, the second magnet 1142 and the first magnet 1143 are respectively seated in the first groove gr1 formed in the second member 1131a and the second groove gr2 formed in the first member 1126. In the present embodiment, the first groove gr1 and the second groove gr2 may have different positions from the first groove and the second groove described in the above-mentioned other embodiments. However, the first groove gr1 is positioned in the second member 1131a and moves integrally with the retainer and the second member 1131a, and the second groove gr2 is positioned on the first member 1126 and connected to the first housing 1120 in a manner corresponding to the first groove gr1. Therefore, the following description will be made by using these terms in an interchangeable manner. In addition, the first groove and the second groove may be grooves as described above. Alternatively, the first groove and the second groove may be replaced by the form of holes.

[0130] In addition, the tilt guide portion 1141 may be disposed adjacent to the optical axis. Therefore, the actuator according to the embodiment may easily change the optical path according to the first axis tilt and the second axis tilt, which will be described below.

[0131] The inclined guide portion 1141 may include a first protrusion disposed to be spaced apart from each other in a first direction (X-axis direction) and a second protrusion disposed to be spaced apart from each other in a second direction (Y-axis direction). In addition, the first protrusion and the second protrusion may protrude in opposite directions. This will be described in detail below.

[0132] In addition, as described above, the second magnet 1142 can be positioned in the second member 1131a. In addition, the first magnet 1143 can be positioned in the first member 1126.

[0133] The second magnet 1142 and the first magnet 1143 may have the same polarity. For example, the second magnet 1142 may be a magnet having an N pole, and the first magnet 1143 may be a magnet having an N pole. Alternatively, on the contrary, the second magnet 1142 may be a magnet having an S pole, and the first magnet 1143 may be a magnet having an S pole.

[0134] For example, a first pole surface of the first magnet 1143 and a second pole surface of the second magnet 1142 facing the first pole surface may have the same polarity.

[0135] Due to the above polarity, the second magnet 1142 and the first magnet 1143 can generate a repulsive force between them. With this configuration, the above repulsive force can be applied to the second member 1131a or the retainer 1131 connected to the second magnet 1142 and to the first member 1126 or the first shell 1120 connected to the first magnet 1143. In this case, the repulsive force applied to the second member 1131a can be transmitted to the retainer 1131 connected to the second member 1131a. Therefore, the inclined guide portion 1141 provided between the second member 1131a and the first member 1126 can be pressed by the repulsive force. That is, the repulsive force can maintain the position of the inclined guide portion 1141 between the retainer 1131 and the first shell 1120 (or the first member 1126). With this configuration, the position between the mover 1130 and the first shell 1120 can be maintained even during the X-axis tilt or the Y-axis tilt. In addition, the tilt guide portion can be in close contact with the first member 1126 and the retainer 1131 by the repulsive force between the first magnet 1143 and the second magnet 1142. That is, the repulsive force obtained by the first magnet 1143 and the second magnet 1142 can be a holding force for the position between the retainer 1131 and the first shell 1120.

[0136] The first driving portion 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor portion 1153, a first plate portion 1154, and a yoke portion 1155. A description thereof will be given below. In addition, in the first camera actuator, the yoke portion 1155 may be referred to as a "first yoke portion". In addition, in the second camera actuator, the yoke portion may be referred to as a "second yoke portion".

[0137] Figure 6a is a perspective view of a first housing of a first camera actuator according to an embodiment, Figure 6b is with Figure 6a Stereoscopic images in different orientations, and Figure 6c is a front view of a first housing of a first camera actuator according to an embodiment.

[0138] Reference Figures 6a to 6c , the first housing 1120 according to the embodiment may include the first housing side portion 1121 to the fourth housing side portion 1124. In addition, the first member 1126 may be integrally formed by being coupled to the first housing 1120. Therefore, the first member 1126 may be a component included in the first housing 1120. That is, the first housing 1120 may be integrally formed by being coupled to the first member 1126. Alternatively, the first housing 1120 may include the first member 1126.

[0139] The first case side portion 1121 and the second case side portion 1122 may be disposed to face each other. In addition, the third case side portion 1123 and the fourth case side portion 1124 may be disposed to face each other.

[0140] In addition, the third case side portion 1123 and the fourth case side portion 1124 may be disposed between the first case side portion 1121 and the second case side portion 1122 .

[0141] The third housing side portion 1123 and the fourth housing side portion 1124 may be in contact with the first housing side portion 1124 and the second housing side portion 1121. In addition, the third housing side portion 1123 may be a lower surface of the first housing 1120. In addition, the fourth housing side portion 1124 may be an upper surface of the first housing 1120. In addition, the above contents may also be applied to the description of directions in the same manner.

[0142] In addition, the first case side portion 1121 may include a first case hole 1121 a. A third coil described below may be positioned in the first case hole 1121 a.

[0143] In addition, the second case side portion 1122 may include a second case hole 1122a. In addition, a fourth coil 1152b described below may be positioned in the second case hole 1122a.

[0144] In addition, the first case side portion 1121 and the second case side portion 1122 may be side surfaces of the first case 1120 .

[0145] The third coil and the fourth coil may be coupled to the first plate portion. In an embodiment, the third coil and the fourth coil may be electrically connected to the first plate portion so that current may flow through the third coil and the fourth coil. The current is an element of the electromagnetic force capable of tilting the second camera actuator relative to the X-axis.

[0146] In addition, the third case side portion 1123 may include a third case hole 1123 a .

[0147] The fifth coil described below may be positioned in the third housing hole 1123a. In addition, the fifth coil 1152c may be electrically connected to the first plate portion in contact with the first housing 1120, and the fifth coil 1152c and the first plate portion may be coupled. Thus, the fifth coil may be electrically connected to the first plate portion to receive current from the first plate portion. Current is an element of the electromagnetic force that enables the second camera actuator to tilt relative to the Y axis.

[0148] The first member 1126 may be seated between the first to fourth housing side portions 1121 to 1124. Thus, the first member 1126 may be positioned on the third housing side portion 1123. For example, the first member 1126 may be positioned at one side of the third housing side portion 1123. The first member 1126 and the retainer may be positioned sequentially in the third direction.

[0149] The fourth case side portion 1124 may be disposed between the first case side portion 1121 and the second case side portion 1122 , and may be in contact with the first case side portion 1121 , the second case side portion 1122 , and the third case side portion 1123 .

[0150] In addition, the fourth housing side portion 1124 may include a fourth housing hole 1124a. The fourth housing hole 1124a may be positioned above the optical member. Therefore, light may be incident on the optical member through the fourth housing hole 1124a.

[0151] In addition, the first housing 1120 may include a receiving portion 1125 formed by the first housing side portion 1121 to the fourth housing side portion 1124. The first member 1126, the second member 1131a, and the mover 1130 may be positioned in the receiving portion 1125 as components.

[0152] In addition, the first housing 1120 may further include a fifth housing side portion facing the first member 1126. In addition, the fifth housing side portion may be disposed between the first housing side portion 1121 and the second housing side portion 1122, and may be in contact with the first housing side portion 1121, the second housing side portion 1122, and the third housing side portion 1123. In addition, the fifth housing side portion may include an opening area to provide a path along which light reflected from the optical member 1132 moves. In addition, the fifth housing side portion may include a protrusion, a groove, etc. to provide easy connection with other camera actuators adjacent thereto. With this configuration, the connection strength between the fifth housing side portion, which provides an optical path and has an opening providing an optical path at the same time, and other components may be increased, thereby suppressing the movement of the opening due to separation, etc., and thus minimizing the change in the optical path.

[0153] In addition, as described above, the first member 1126 may be a component included in the first housing 1120 by being coupled to the first housing 1120. That is, the first housing 1120 may include the first member 1126.

[0154] In addition, the first member 1126 may be disposed in the first housing 1120. Alternatively, the first member 1126 may be positioned in the first housing 1120.

[0155] In addition, the first member 1126 may be coupled to the first housing 1120. In an embodiment, the first member 1126 may be positioned between the first housing side portion 1121 and the second housing side portion 1122. In addition, the first member 1126 may be positioned between the third housing side portion 1123 and the fourth housing side portion 1124.

[0156] In addition, the first member 1126 may be positioned on the third case side portion 1123 and may be in contact with the first case side portion to the third case side portion.

[0157] In addition, the first stopper member 1121b may be positioned on the inner surface of the first housing side portion 1121. In addition, the second stopper member 1122b may be positioned on the inner surface of the second housing side portion 1122.

[0158] The first stop member 1121b and the second stop member 1122b can be positioned symmetrically with respect to the first direction (X-axis direction). The first stop member 1121b and the second stop member 1122b can extend along the first direction (X-axis direction). With this configuration, even when the first member 1126 moves into the first housing 1120, the position of the first member 1126 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 position of the first member 1126 at one side of the first housing 1120.

[0159] In addition, the first stopper member 1121b and the second stopper member 1122b can fix the position of the first member 1126 to fix the position of the tilt guide portion between the first member 1126 and the mover, thereby eliminating factors causing errors such as vibration. Therefore, the first camera actuator according to the embodiment can accurately perform X-axis tilt and Y-axis tilt.

[0160] In addition, the spacing distance L2 between the first stopping member 1121b and the second stopping member 1122b in the second direction (Y-axis direction) may be smaller than the maximum length L1 in the second direction (Y-axis direction) of the first member 1126. Therefore, the first member 1126 may be assembled or inserted into the side surface of the first housing 1120 and coupled to the first housing 1120.

[0161] In addition, the first member 1126 includes a second protrusion groove in which the second protrusion of the tilt guide portion is seated. The second protrusion groove PH2 can be positioned in the inner surface 1126S1 of the first member 1126. Therefore, in the first member 1126, the protrusion of the tilt guide portion (e.g., the second protrusion) is arranged adjacent to the prism in the fourth seating groove, so that the protrusion as the reference axis of the tilt is arranged close to the center of gravity of the mover 1130. Therefore, when the holder is tilted, the moment for moving the mover 1130 for tilting can be minimized. Therefore, the current consumption for driving the coil can also be minimized, thereby reducing the power consumption of the camera actuator.

[0162] In addition, the first member 1126 may include through holes 1126a and 1126b. The through hole may be provided in plural and may include a first through hole 1126a and a second through hole 1126b.

[0163] The first extension and the second extension of the second member, which will be described below, can pass through the first through hole 1126a and the second through hole 1126b, respectively. Therefore, the second member can be coupled to the first member. That is, the first housing can be coupled to the mover.

[0164] The second protrusion groove PH2 can be positioned between the first through hole 1126a and the second through hole 1126b. Therefore, the holding force between the second member and the first member can be generated by the repulsive force between the first magnet and the second magnet. That is, even when the mover is tilted, the position between the first shell and the mover can be maintained.

[0165] The second protrusion groove PH2 may be positioned between the first through hole 1126a and the second through hole 1126b. With this configuration, the coupling strength between the tilt guide portion 1141 and the first member 1126 may be improved, thereby preventing a decrease in tilt accuracy caused by movement of the tilt guide portion 1141 in the first housing.

[0166] In addition, the second groove gr2 can be positioned in the outer surface 1126S2 of the first member 1126. The first magnet can be seated in the second groove gr2. In addition, the outer surface 1126S2 of the first member 1126 can face the inner surface of the second member or the member base portion. In addition, the second magnet seated on the second member and the first magnet of the first member 1126 can face each other and generate the above-mentioned repulsive force. Therefore, since the first member 1126 presses the inclined guide portion or the retainer inwardly by the repulsive force, the mover can be spaced apart from the third shell side portion in the first shell by a predetermined distance even if no current is applied to the coil. That is, the connection strength between the mover, the shell and the inclined guide portion can be maintained.

[0167] In addition, when the first member 1126 is integrally formed with the first housing 1120, the coupling strength between the first member 1126 and the first housing 1120 can be improved, thereby improving the reliability of the camera actuator. In addition, when the first member 1126 is separately formed from the first housing 1120, the ease of assembly and manufacture of the first member 1126 and the first housing 1120 can be improved.

[0168] In addition, in an embodiment, the first member 1126 may include the first through hole 1126a and the second through hole 1126b as described above. In addition, 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 may overlap each other.

[0169] In addition, the first member 1126 may include an upper member UA positioned above the first through hole 1126a and the second through hole 1126b and a bottom member BA positioned below the first through hole 1126a and the second through hole 1126b. Therefore, the first through hole 1126a and the second through hole 1126b may be positioned in the middle of the first member 1126. That is, the first member 1126 may include a connecting member MA positioned at the side portion of the first through hole 1126a and the side portion of the second through hole 1126b. That is, the upper member UA and the bottom member BA may be connected by the connecting member MA. In addition, a plurality of bottom members BA may be formed to form the first through hole and the second through hole, and the plurality of bottom members BA may be arranged to be spaced apart from each other in the second direction (Y-axis direction).

[0170] Therefore, the first member 1126 may have an upper member UA, thereby improving the rigidity. For example, the rigidity of the first member 1126 may be increased compared to a case where the upper member UA does not exist. For example, in the present embodiment, the unit of the rigidity may be N / μm. Therefore, the reliability of the first camera actuator according to the embodiment may be improved.

[0171] In addition, the first coupling groove 1126k may be positioned in the outer surface 1126S2 of the first member 1126. The first coupling groove 1126k may be positioned at an edge of the outer surface 1126S2 of the first member 1126. In particular, the first coupling groove 1126k may be positioned at ends (e.g., left and right sides) of the outer surface 1126S2 of the first member 1126 and positioned adjacent to the first housing side portion 1121.

[0172] The first coupling groove 1126k may be positioned to correspond to the second coupling groove 1121m of the first housing side portion 1121 and the second coupling groove 1122m of the second housing side portion 1122. In an embodiment, the first coupling groove 1126k may be positioned to face the second coupling groove 1121m of the first housing side portion 1121 and the second coupling groove 1122m of the second housing side portion 1122. The second coupling grooves 1121m and 1122m may be adjacent to the outer surface 1126S2 of the first member 1126 and positioned on the same side surface of the first member 1126.

[0173] In an implementation, a plurality of first coupling grooves 1126k and a plurality of second coupling grooves 1121m and 1122m may be formed and may be symmetrically positioned in the first direction or the second direction.

[0174] In addition, a coupling member may be applied to the first coupling groove 1126k and the second coupling grooves 1121m and 1122m. That is, the coupling member may be applied between the first housing side portion (or the second housing side portion) and the first member 1126, thereby increasing the coupling strength between the first housing 1120 and the first member 1126. The coupling member may include epoxy resin or the like, but is not limited to the material.

[0175] In addition, the first member 1126 may also include a first protrusion and a second protrusion. The first protrusion may be in contact with the first shell side portion, and the second protrusion may be in contact with the second shell side portion. The first protrusion may extend from one end of the outer surface 1126S2 of the first member along a third direction (Z-axis direction). The second protrusion may extend from the other end of the outer surface 1126S2 of the first member along a third direction (Z-axis direction). In other words, the first protrusion and the second protrusion may extend toward the retainer.

[0176] The position of the first protruding portion may be maintained by the first stopper member 1121b, and the position of the second protruding portion may be maintained by the second stopper member 1122b. Therefore, the reliability of the camera actuator according to the embodiment may be improved.

[0177] Figure 7 is a perspective view illustrating optical members of a first camera actuator according to an embodiment.

[0178] The optical member 1132 may be seated on the holder. The optical member 1132 may be a right angle prism as a reflector, but is not limited thereto.

[0179] In an embodiment, the optical member 1132 may have a protrusion (not shown) formed on a portion of its outer surface. The optical member 1132 may be easily coupled to the holder through the protrusion (not shown). In addition, the holder may be coupled to the optical member 1132 by having a groove or a protrusion.

[0180] In addition, the lower surface 1132b of the optical member 1132 can be seated on the seating surface of the holder. Therefore, the lower surface 1132b of the optical member 1132 can correspond to the seating surface of the holder. In an embodiment, the lower surface 1132b can be formed as an inclined surface similar to the seating portion of the holder. Therefore, the optical member 1132 can be prevented from being separated from the holder due to the prism moving according to the movement of the holder.

[0181] In addition, a groove may be formed in the lower surface 1132b of the optical member 1132, and a coupling member may be applied to the groove so that the optical member 1132 can be coupled to the holder. Alternatively, the holder may be coupled to the optical member 1132 by applying the coupling member to the groove or protrusion of the holder.

[0182] In addition, as described above, the optical member 1132 may have a structure in which light reflected from the outside (e.g., an object) may be reflected into the camera module. As in the embodiment, the optical member 1132 may be formed by a single mirror. In addition, the optical member 1132 may address the space limitations of the first camera actuator and the second camera actuator by changing the path of the reflected light. Therefore, it should be understood that the camera module can provide a wide range of magnifications by extending the optical path while minimizing its thickness. In addition, it should be understood that the camera module including the camera actuator according to the embodiment may also provide a wide range of magnifications by extending the optical path while minimizing its thickness.

[0183] Figure 8a is a perspective view of a holder of a first camera actuator according to an embodiment, Figure 8b is a bottom view of a holder of a first camera actuator according to an embodiment, Figure 8c is a front view of a holder of a first camera actuator according to an embodiment, Figure 8d is a rear view of a second member of a first camera actuator according to an embodiment, and Figure 8e is a bottom view of a second member of a first camera actuator according to an embodiment.

[0184] Reference Figures 8a to 8e, the holder 1131 may include a seating surface 1131k on which the optical member 1132 is seated. The seating surface 1131k may be an inclined surface. In addition, the holder 1131 may include a step portion located above the seating surface 1131k. In addition, the step portion of the holder 1131 may be coupled to a protruding portion (not shown) of the optical member 1132.

[0185] The holder 1131 may include a plurality of outer surfaces. For example, the holder 1131 may include a first holder outer surface 1131S1, a second holder outer surface 1131S2, a third holder outer surface 1131S3, and a fourth holder outer surface 1131S4.

[0186] 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).

[0187] The first retainer outer surface 1131S1 can be positioned to correspond to the first shell side portion. That is, the first retainer outer surface 1131S1 can be positioned to face the first shell side portion. In addition, the second retainer outer surface 1131S2 can be positioned to correspond to the second shell side portion. That is, the second retainer outer surface 1131S2 can be positioned to face the second shell side portion.

[0188] In addition, the first holder outer surface 1131S1 may include a first seating groove 1131S1a. In addition, the second holder outer surface 1131S2 may include a second seating groove 1131S2a. The first seating groove 1131S1a and the second seating groove 1131S2a may be symmetrically disposed with respect to the first direction (X-axis direction).

[0189] In addition, the first seating groove 1131S1a and the second seating groove 1131S2a can be arranged to overlap each other in the second direction (Y-axis direction). In addition, the third magnet 1151a can be arranged in the first seating groove 1131S1a, and the fourth magnet 1151b can be arranged in the second seating groove 1131S2a. The third magnet 1151a and the fourth magnet 1151b can also be arranged symmetrically with respect to the first direction (X-axis direction). In this specification, it should be understood that the third magnet to the fifth magnet can be connected to the housing by a yoke or a combining member. The polarity of the third magnet and the polarity of the fourth magnet can be opposite to each other. For example, the N pole and the S pole of the third magnet can be arranged in sequence in the third direction, and the S pole and the N pole of the fourth magnet can be arranged in sequence in the third direction. As a modified example, by adjusting the current application or current direction of the third coil and the fourth coil, the polarity of the third magnet and the polarity of the fourth magnet can be the same as each other.

[0190] As described above, due to the positions of the first and second seating grooves and the third and fourth magnets, the electromagnetic force generated by each magnet can be coaxially provided on the first holder outer surface S1131S1 and the second holder outer surface 1131S2. For example, the area applied to the first holder outer surface S1131S1 (e.g., the part where the electromagnetic force is the strongest) and the area applied to the second holder outer surface S1131S2 (e.g., the part where the electromagnetic force is the strongest) can be located on an axis parallel to the second direction (Y-axis direction). Therefore, the X-axis tilt can be accurately performed.

[0191] The third magnet 1151a may be disposed in the first seating groove 1131S1a, and the fourth magnet 1151b may be disposed in the second seating groove 1131S2a.

[0192] The third retainer outer surface 1131S3 may be in contact with the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2 and may be an outer surface extending from one side of the first retainer outer surface 1131S1 and one side of the second retainer outer surface 1131S2 along the second direction (Y-axis direction). In addition, the third retainer outer surface 1131S3 may be positioned between the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2. The third retainer outer surface 1131S3 may be the lower surface of the retainer 1131. That is, the third retainer outer surface 1131S3 may be positioned to face the third shell side portion.

[0193] In addition, the third holder outer surface 1131S3 may include a third seating groove 1131S3a. The fifth magnet 1151c may be disposed in the third seating groove 1131S3a. The third holder outer surface 1131S3 may be positioned to face the third housing side portion 1123.

[0194] In addition, at least a portion of the third housing hole 1123a may overlap with the third seating groove 1131S3a in the first direction (X-axis direction). Therefore, the fifth magnet 1151c in the third seating groove 1131S3a and the fifth coil 1152c in the third housing hole 1123a may be positioned to face each other. In addition, the fifth magnet 1151c and the fifth coil 1152c may generate an electromagnetic force so that the second camera actuator may be tilted relative to the Y-axis.

[0195] In addition, the X-axis tilt may be performed by a plurality of magnets (the third magnet 1151a and the fourth magnet 1151b), while the Y-axis tilt may be performed only by the fifth magnet 1151c.

[0196] In an implementation, the third seating groove 1131S3a may have a larger area than the first seating groove 1131S1a or the second seating groove 1131S2a.With this configuration, Y-axis tilting may be performed by current control similar to that of X-axis tilting.

[0197] The fourth retainer outer surface 1131S4 may be in contact with the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2, and may be an outer surface extending from the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2 along the first direction (X-axis direction). In addition, the fourth retainer outer surface 1131S4 may be positioned between the first retainer outer surface 1131S1 and the second retainer outer surface 1131S2. That is, the fourth retainer outer surface 1131S4 may be positioned to face the first member.

[0198] The fourth retainer outer surface 1131S4 may include a fourth seating groove 1131S4a. The inclined guide portion 1141 may be positioned in the fourth seating groove 1131S4a. In addition, the second member 1131a and the first member 1126 may be positioned in the fourth seating groove 1131S4a. In addition, the fourth seating groove 1131S4a may include a plurality of regions. The fourth seating groove 1131S4a may include a first region AR1, a second region AR2, and a third region AR3.

[0199] The second member 1131a may be positioned in the first area AR1. That is, the first area AR1 may overlap with the second member 1131a in the first direction (X-axis direction). Specifically, the first area AR1 may be an area where the member base portion of the second member 1131a is positioned. In this case, the first area AR1 may be positioned on the fourth retainer outer surface 1131S4. That is, the first area AR1 may correspond to an area positioned above the fourth seating groove 1131S4a. In this case, the first area AR1 may not be an area in the fourth seating groove 1131S4a.

[0200] The first member 1126 may be positioned in the second area AR2. That is, the second area AR2 may overlap with the first member 1126 in the first direction (X-axis direction).

[0201] In addition, like the first area, the second area AR2 may be positioned on the fourth holder outer surface 1131S4. That is, the second area AR2 may correspond to an area positioned above the fourth seating groove 1131S4a.

[0202] The inclined guide portion may be positioned in the third region AR3. Specifically, the base of the inclined guide portion may be positioned in the third region AR3. That is, the third region AR3 may overlap the inclined guide portion (eg, the base) in the first direction (X-axis direction).

[0203] In addition, the second area AR2 may be positioned between the first area AR1 and the third area AR3.

[0204] In addition, the second member may be disposed in the first area AR1, and the second member 1131a may include a first groove gr1. In an embodiment, the second member 1131a may include a first groove gr1 formed in the inner surface 1131aas. In addition, the second magnet may be disposed in the first groove gr1 as described above.

[0205] In addition, as described above, the first member may be disposed in the second area AR2. The first groove gr1 may be positioned to face the second groove gr2. For example, at least a portion of the first groove gr1 may overlap the second groove gr2 in the third direction (Z-axis direction).

[0206] In addition, the repulsive force generated by the second magnet may be transferred through the second member to the fourth seating groove 1131S4a of the holder 1131. Therefore, the holder may apply a force to the inclined guide portion in the same direction as the repulsive force generated by the second magnet.

[0207] The first member may include a second groove gr2 formed in an outer surface thereof facing the first groove gr1. In addition, the first member may include a second protrusion groove formed in an inner surface thereof as described above. In addition, the second protrusion may be seated in the second protrusion groove.

[0208] In addition, similar to the second magnet, the repulsive force generated by the first magnet and the second magnet may be applied to the first member. Therefore, the first member and the second member may press the inclined guide portion provided between the first member and the holder 1131 by the repulsive force.

[0209] The inclined guide portion 1141 may be provided in the third area AR3.

[0210] In addition, the first protrusion groove PH1 can be positioned in the fourth seating groove 1131S4a. In addition, the first protrusion of the inclined guide portion 1141 can be received in the first protrusion groove PH1. Therefore, the first protrusion PR1 can be in contact with the first protrusion groove. The maximum diameter of the first protrusion groove PH1 can correspond to the maximum diameter of the first protrusion PR1. This can also be applied to the second protrusion groove and the second protrusion PR2 in the same manner. That is, the maximum diameter of the second protrusion groove can correspond to the maximum diameter of the second protrusion PR2. Therefore, the second protrusion can be in contact with the second protrusion groove. With this configuration, the first axis tilting can be easily performed relative to the first protrusion, the second axis tilting can be easily performed relative to the second protrusion, and the tilting radius can be increased.

[0211] In addition, in an embodiment, a plurality of first protrusion grooves PH1 may be provided. For example, one of the first protrusion groove PH1 and the second protrusion groove PH2 may include a 1-1 protrusion groove PH1a and a 1-2 protrusion groove PH1b. Hereinafter, an example in which the first protrusion groove PH1 includes a 1-1 protrusion groove PH1a and a 1-1 protrusion groove PH1b will be described. In addition, the following description may also be applied to the second protrusion groove PH2 in the same manner. For example, the second protrusion groove PH2 may include a 2-1 protrusion groove and a 2-2 protrusion groove, wherein the description of the 1-1 protrusion groove may be applied to the 2-1 protrusion groove, and the description of the 1-2 protrusion groove may be applied to the 2-2 protrusion groove.

[0212] The 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b may be disposed side by side in the first direction (X-axis direction). The 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b may have the same maximum area.

[0213] The plurality of first protrusion grooves PH1 may have different numbers of inclined surfaces. For example, the first protrusion groove PH1 may include a groove lower surface and an inclined surface. In this case, the plurality of protrusion grooves may have different numbers of inclined surfaces. In addition, the lower surface of the protrusion groove may also have different areas.

[0214] For example, the 1-1 protrusion groove PH1a may include a first groove lower surface LS1 and a first inclined surface CS1. The 1-2 protrusion groove PH1b may include a second groove lower surface LS2 and a second inclined surface CS2.

[0215] In this case, the first groove lower surface LS1 and the second groove lower surface LS2 may have different areas. The area of ​​the first groove lower surface LS1 may be smaller than the area of ​​the second groove lower surface LS2.

[0216] In addition, the number of the first inclined surfaces CS1 contacting the first groove lower surface LS1 may be different from the number of the second inclined surfaces CS2. For example, the number of the first inclined surfaces CS1 may be greater than the number of the second inclined surfaces CS2.

[0217] With this configuration, it is possible to easily compensate for the assembly tolerance of the first protrusion seated in the first protrusion groove PH1. For example, since the number of the first inclined surfaces CS1 is greater than the number of the second inclined surfaces CS2, the first protrusion can contact more inclined surfaces, thereby more accurately maintaining the position of the first protrusion in the 1-1 protrusion groove PH1a.

[0218] Different from this, the number of inclined surfaces of the 1-2 protrusion groove PH1b contacting the first protrusion portion is less than the number of inclined surfaces of the 1-1 protrusion groove PH1a contacting the first protrusion portion, thereby easily adjusting the position of the first protrusion portion.

[0219] In an embodiment, the second inclined surfaces CS2 may be arranged to be spaced apart from each other in the second direction (Y-axis direction). In addition, the second groove lower surface LS2 may extend in the first direction (X-axis direction), so that the first protrusion may be easily moved in the first direction (X-axis direction) while in contact with the second inclined surface CS2. That is, the position of the first protrusion in the 1-2 protrusion groove PH1b may be easily adjusted.

[0220] In addition, in the present 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 an 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. Therefore, a step-shaped portion may be positioned between the first area AR1 and the second area AR2.

[0221] In addition, the second member 1131a may include a first groove gr1. That is, the first groove gr1 may be positioned in the inner surface of the member base portion 1131aa. In addition, the above-mentioned second magnet may be seated in the first groove gr1. In addition, a plurality of first grooves gr1 may be provided according to the number of the second magnets. That is, the number of the first grooves gr1 may correspond to the number of the second magnets.

[0222] In addition, the second member 1131a may include a member base portion 1131aa, a first extension portion 1131ab, and a second extension portion 1131ac.

[0223] The member base portion 1131aa may be positioned on the outermost portion of the first camera actuator. The member base portion 1131aa may be positioned outside the first member. That is, the first member may be positioned between the member base portion 1131aa and the tilt guide portion.

[0224] The first extension portion 1131ab can extend from the edge of the component base portion 1131aa along the third direction (Z-axis direction). That is, the first extension portion 1131ab can extend from the component base portion 1131aa to the retainer 1131. This also applies to the second extension portion 1131ac in the same manner. In addition, the second extension portion 1131ac can extend from the edge of the component base portion 1131aa along the third direction (Z-axis direction). In an embodiment, the first extension portion 1131ab and the second extension portion 1131ac can be positioned at the edge of the component base portion 1131aa in the second direction (Y-axis direction). In addition, the first extension portion 1131ab and the second extension portion 1131ac can be arranged between the upper member and the lower member.

[0225] Therefore, the second member 1131a may have a groove formed by the first extension 1131ab and the second extension 1131ac. That is, the groove may be positioned between the first extension 1131ab and the second extension 1131ac. Therefore, the first extension 1131ab and the second extension 1131ac may be connected only by the member base portion 1131aa. With this configuration, the second member 1131a may continuously receive the repulsive force generated by the second magnet seated at the center of the member base portion 1131aa, in particular, seated in the first groove gr1.

[0226] In addition, since the second member 1131 a is coupled to the holder to move during the X-axis tilt and the Y-axis tilt, the rigidity of the second member 1131 a may be greater than the rigidity of the first member.

[0227] In addition, as described above, the first member according to the embodiment may have an upper member and a lower member, thereby increasing the rigidity. With this configuration, the rigidity difference between the second member and the first member can be reduced. Therefore, when the second member 1131a and the holder 1131 coupled to the second member 1131a are tilted together relative to the X-axis or the Y-axis, the second member 1131a may have a smaller distance adjacent to the first member and contact the first member. Therefore, since the first member has improved rigidity as described above, its operation can be easily performed. That is, the reliability of the camera actuator can be improved.

[0228] In addition, since the difference in rigidity between the first member and the second member is reduced, damage caused by contact during tilting can be minimized. That is, the reliability of the camera actuator can be improved.

[0229] In addition, the first extension portion 1131ab can be spaced apart from the second extension portion 1131ac in the second direction (Y-axis direction) to form a separation space. The first member and the inclined guide portion can be seated in such a separation space. In addition, the second magnet and the first magnet can be positioned in the separation space.

[0230] In addition, the first extension portion 1131ab and the second extension portion 1131ac may have the same length in the third direction (Z-axis direction). Therefore, the coupling strength, weight, etc. may be formed in a balanced manner so that the tilting of the holder may be accurately performed without biasing to one side.

[0231] In addition, the first extension 1131ab and the second extension 1131ac can be connected to the retainer. In the present specification, it should be understood that the connection can be made by a coupling member other than the above-mentioned protrusion and groove structure. In an embodiment, the first extension 1131ab and the second extension 1131ac may include a third coupling groove 1131k formed in a third direction (Z-axis direction). In addition, a coupling protrusion 1131m may be positioned in an area where the first extension 1131ab and the second extension 1131ac overlap each other in the fourth seating groove 1131S4a along the third direction (Z-axis direction). The coupling protrusion 1131m may be positioned to correspond to the third coupling groove 1131k.

[0232] For example, a bonding member such as epoxy resin may be applied to the third coupling groove 1131k. In addition, the coupling protrusion 1131m may be inserted into the third coupling groove 1131k of the first extension 1131ab and the second extension 1131ac. With this configuration, the second member 1131a may be coupled to the retainer 1131. In addition, the repulsive force applied to the second member 1131a may be transmitted to the retainer 1131 through this coupling.

[0233] However, it should be understood that the positions of the protrusion and groove structures may be interchanged as described above.

[0234] Figure 9a is a perspective view of a tilt guide portion of a first camera actuator according to an embodiment, Figure 9b is with Figure 9a a perspective view of the tilt guide portion of the first camera actuator in different directions, and Fig.9c It is along Figure 9a View of line F-F' in FIG.

[0235] The inclined guide portion 1141 according to the embodiment may include a base BS, a first protrusion PR1 protruding from a first surface 1141a of the base BS, and a second protrusion PR2 protruding from a second surface 1141b of the base BS. In addition, according to the structure, the first protrusion and the second protrusion may be formed on opposite surfaces, but the present invention will be described below based on the accompanying drawings. In addition, it should be understood that the first protrusion PR1 and the second protrusion PR2 may be formed integrally with the base BS, and as shown in the figure, the first protrusion PR1 and the second protrusion PR2 may have a spherical shape similar to a ball. In addition, the first protrusion PR1 and the second protrusion PR2 may not be a protrusion or a protrusion shape, but may be a ball.

[0236] 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 the first surface 1141a and the second surface 1141b may be outer surfaces opposite to or facing each other in the inclined guide portion 1141.

[0237] The inclined guide portion 1141 may include a first protrusion PR1 extending toward one side on 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 provided in plural and may include a 1-1 protrusion PR1a and a 1-2 protrusion PR1b.

[0238] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned side by side in the first direction (X-axis direction). That is, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may overlap each other in the first direction (X-axis direction). In addition, in an embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be equally divided by a virtual line extending in the first direction (X-axis direction).

[0239] In addition, each of the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may have a curvature and have, for example, a hemispherical shape. In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may contact the first groove of the case at a point farthest from the first surface 1141a of the base BS.

[0240] In addition, an alignment groove 1141aa may be positioned in the first surface 1141a. The alignment groove 1141aa may be provided at one side of the first surface 1141a to provide an assembly position or assembly direction of the inclined guide portion 1141 during an assembly process.

[0241] In addition, the inclined guide portion 1141 may include a second protrusion PR2 extending toward 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. In addition, in an embodiment, the second protrusion PR2 may be provided in plurality and may include a 2-1 protrusion PR2a and a 2-2 protrusion PR2b.

[0242] 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 each other 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 equally divided by a virtual line extending in the second direction (Y-axis direction).

[0243] Each of the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may have a curvature and have, for example, a hemispherical shape. In addition, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may contact the second member 1131a at a point spaced apart from the second surface 1141b of the base BS.

[0244] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be positioned in the area between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. According to an embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be positioned in the center of the separation space between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. With this configuration, the actuator according to the embodiment can have an angle of X-axis tilt in the same range relative to the X-axis. That is, the tilt guide portion 1141 and the retainer can equally provide a range (e.g., a positive / negative range) in which X-axis tilt can be performed relative to the 1-1 protrusion PR1a and the 1-2 protrusion PR1b about the X-axis.

[0245] In addition, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b can be positioned in the area between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. According to an embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b can be positioned in the center of the separation space between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. With this configuration, the actuator according to the embodiment can have an angle of Y-axis tilt in the same range relative to the Y-axis. That is, the tilt guide portion 1141 and the retainer can equally provide a range (e.g., a positive / negative range) in which the Y-axis tilt can be performed relative to the 2-1 protrusion PR2a and the 2-2 protrusion PR2b about the Y-axis.

[0246] 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. In addition, the third outer line M3 and the fourth outer line M4 may be positioned between the first outer line M1 and the second outer line M2. In addition, although the first outer line M1 and the second outer line M2 may be perpendicular to the first direction (X-axis direction), the third outer line M3 and the fourth outer line M4 may be parallel to the first direction (X-axis direction).

[0247] In this case, the first protrusion PR1 can be positioned on the first virtual line VL1. Here, the first virtual line VL1 is a line that divides the first outer line M1 and the second outer line M2 into equal parts. Alternatively, the first virtual line VL1 and the third virtual line VL1' are lines that divide the base BS into equal parts in the second direction (Y-axis direction). Therefore, the tilting guide portion 1141 can easily perform X-axis tilting through the first protrusion PR1. In addition, since the tilting guide portion 1141 performs X-axis tilting relative to the first virtual line VL1, the rotational force can be uniformly applied to the tilting guide portion 1141. Therefore, the X-axis tilting can be accurately performed and the reliability of the device can be improved.

[0248] In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be symmetrically arranged with respect to the first virtual line VL1 and the second virtual line VL2. Alternatively, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be symmetrically positioned with respect to the first center point C1. With this configuration, during the X-axis tilting, the supporting strength supported by the first protrusion PR1 can be equally applied to the upper and lower sides relative to the second virtual line VL2. Therefore, the reliability of the tilting guide portion can be improved. Here, the second virtual line VL2 is a line that divides the third outer line M3 and the fourth outer line M4 into equal parts. Alternatively, the second virtual line VL2 and the fourth virtual line VL2' are lines that divide the base BS into equal parts in the first direction (X-axis direction).

[0249] In addition, the first center point C1 may be an intersection point of the first virtual line VL1 and the second virtual line VL2 Alternatively, according to the shape of the inclination guide portion 1141, the first center point may be a point corresponding to the center of gravity.

[0250] In addition, the second surface 1141b may 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. In addition, the seventh outer line M3' and the eighth outer line M4' may be positioned between the fifth outer line M1' and the sixth outer line M2'. In addition, the fifth outer line M1' and the sixth outer line M2' may be perpendicular to the first direction (X-axis direction), but the seventh outer line M3' and the eighth outer line M4' may be parallel to the first direction (X-axis direction).

[0251] In addition, since the tilt guide portion 1141 performs Y-axis tilt with respect to the fourth virtual line VL2', the rotation force may be uniformly applied to the tilt guide portion 1141. Therefore, the Y-axis tilt may be accurate and the reliability of the device may be improved.

[0252] In addition, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b can be symmetrically arranged on the fourth virtual line VL2' relative to the third virtual line VL1'. Alternatively, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b can be symmetrically positioned relative to the second center point C1'. With this configuration, during the Y-axis tilt, the supporting strength supported by the second protrusion PR2 can be equally applied to the upper and lower sides relative to the fourth virtual line VL2'. Therefore, the reliability of the tilting guide part can be improved. Here, the third virtual line VL1' is a line that divides the fifth outer line M1' and the sixth outer line M2' into equal parts. In addition, the second center point C1' can be the intersection of the third virtual line VL1' and the fourth virtual line VL2'. Alternatively, depending on the shape of the tilting guide part 1141, the first center point can be a point corresponding to the center of gravity.

[0253] In addition, the distance DR2 between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction (X-axis direction) may be greater than the length of the second protrusion PR2 in the first direction (X-axis direction). Therefore, when X-axis tilting is performed relative to the 1-1 protrusion PR1a and the 1-2 protrusion PR1b, the resistance caused by the second protrusion PR2 may be minimized.

[0254] Correspondingly, 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). Therefore, when Y-axis tilting is performed relative to the 2-1 protrusion PR2a and the 2-2 protrusion PR2b, the resistance caused by the first protrusion PR1 may be minimized.

[0255] Fig.10is a view showing a first driving portion of a first camera actuator according to an embodiment.

[0256] Reference Fig.10 , the first driving part 1150 includes a driving magnet 1151 , a driving coil 1152 , a Hall sensor part 1153 , a first plate part 1154 and a yoke part 1155 .

[0257] In addition, as described above, the driving magnet 1151 may include third, fourth, and fifth magnets 1151a, 1151b, and 1151c providing driving force generated by electromagnetic force. The third, fourth, and fifth magnets 1151a, 1151b, and 1151c may each be positioned on an outer surface of the holder 1131.

[0258] In addition, the driving coil 1152 may include a plurality of coils. In an embodiment, the driving coil 1152 may include a third coil 1152a, a fourth coil 1152b, and a fifth coil 1152c.

[0259] The third coil 1152a can be positioned to face the third magnet 1151a. Therefore, as described above, the third coil 1152a can be positioned in the first housing hole 1121a of the first housing side portion 1121. In addition, the fourth coil 1152b can be positioned to face the fourth magnet 1151b. Therefore, as described above, the fourth coil 1152b can be positioned in the second housing hole 1122a of the second housing side portion 1122.

[0260] According to an embodiment, the second camera actuator can control the mover 1130 to rotate along the first axis (in the X-axis direction) or the second axis (in the Y-axis direction) by the electromagnetic force between the driving magnet 1151 and the driving coil 1152, thereby minimizing the occurrence of eccentricity or tilt when implementing OIS and providing optimal optical characteristics.

[0261] In addition, according to this embodiment, an ultra-thin and ultra-small camera actuator and a camera module including the actuator can be provided, which implements OIS through the inclined guide portion 1141 of the rotating portion 1140 set between the first shell 1120 and the mover 1130 to solve the size limitation of the actuator.

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

[0263] The first plate side portion 1154a and the second plate side portion 1154b may be disposed to face each other. In addition, the third plate side portion 1154c may be positioned between the first plate side portion 1154a and the second plate side portion 1154b.

[0264] In addition, the first plate side portion 1154a can be positioned between the first shell side portion and the shielding cover, and the second plate side portion 1154b can be positioned between the second shell side portion and the shielding cover. In addition, the third plate side portion 1154c can be positioned between the third shell side portion and the shielding cover, and can be the lower surface of the first plate portion 1154.

[0265] The first board side portion 1154a may be coupled to and electrically connected to the third coil 1152a. In addition, the first board side portion 1154a may be coupled to and electrically connected to the first hall sensor 1153a.

[0266] The second plate side portion 1154b may be coupled to and electrically connected to the fourth coil 1152b. In addition, it should be understood that the second plate side portion 1154b may be coupled to and electrically connected to the first Hall sensor.

[0267] The third plate side portion 1154c may be coupled to and electrically connected to the fifth coil 1152c. In addition, the third plate side portion 1154c may be coupled to and electrically connected to the second hall sensor 1153b.

[0268] The yoke portion 1155 may include a third yoke 1155a, a fourth yoke 1155b, and a fifth yoke 1155c. The third yoke 1155a may be positioned in the first seating groove and coupled to the third magnet 1151a. In addition, the fourth yoke 1155b may be positioned in the second seating groove and coupled to the fourth magnet 1151b. In addition, the fifth yoke 1155c may be positioned in the third seating groove and coupled to the fifth magnet 1151c. The third yokes 1155a to 1155c are coupled to the housing by the third magnets 1151a to 1151c that are easily seated in the first seating groove to the third seating groove.

[0269] Fig.11a is a perspective view of a first camera actuator according to an embodiment, Fig.11b It is along Fig.11a The view of the line P-P' in Fig.11c It is along Fig.11a View of line Q-Q' in FIG.

[0270] Reference Figures 11a to 11c, the third coil 1152a can be positioned on the first housing side portion 1121, and the third magnet 1151a can be positioned on the first holder outer surface 1131S1 of the holder 1131. Therefore, the third coil 1152a and the third magnet 1151a can be positioned to face each other. At least a portion of the third magnet 1151a can overlap with the third coil 1152a in the second direction (Y-axis direction).

[0271] In addition, the fourth coil 1152b can be positioned on the second housing side portion 1122, and the fourth magnet 1151b can be positioned on the second holder outer surface 1131S2 of the holder 1131. Therefore, the fourth coil 1152b and the fourth magnet 1151b can be positioned to face each other. At least a portion of the fourth magnet 1151b can overlap with the fourth coil 1152b in the second direction (Y-axis direction).

[0272] In addition, the third coil 1152a and the fourth coil 1152b may overlap each other in the second direction (Y-axis direction), and the third magnet 1151a and the fourth magnet 1151b may overlap each other in the second direction (Y-axis direction).

[0273] With this configuration, the electromagnetic force applied to the outer surfaces of the holder (first holder outer surface and second holder outer surface) can be positioned on parallel axes in the second direction (Y-axis direction) to allow accurate and precise X-axis tilting.

[0274] In addition, the second protrusions PR2a and PR2b of the tilt guide portion 1141 may contact the first member 1126 of the first housing 1120. The second protrusion PR2 may be seated in a second protrusion groove PH2 formed in one side surface of the first member 1126. In addition, during the X-axis tilt, the second protrusions PR2a and PR2b may be a reference axis (or rotation axis) for tilting. Therefore, the tilt guide portion 1141 and the mover 1130 may move in the second direction.

[0275] In addition, as described above, the first hall sensor 1153a may be positioned outside to be electrically connected and coupled to the first plate portion 1154. However, the present invention is not limited to such a position.

[0276] In addition, the fifth coil 1152c can be positioned on the third housing side portion 1123, and the fifth magnet 1151c can be positioned on the third holder outer surface 1131S3 of the holder 1131. At least some parts of the fifth coil 1152c and the fifth magnet 1151c can overlap each other in the first direction (X-axis direction). Therefore, the strength of the electromagnetic force between the fifth coil 1152c and the fifth magnet 1151c can be easily controlled.

[0277] As described above, the inclined guide portion 1141 may be positioned on the fourth holder outer surface 1131S4 of the holder 1131. In addition, the inclined guide portion 1141 may be seated in the fourth seating groove 1131S4a of the fourth holder outer surface. As described above, the fourth seating groove 1131S4a may include the first area AR1, the second area AR2, and the third area AR3.

[0278] The second member 1131a may be disposed in the first area AR1, and the second member 1131a may include a first groove gr1 formed in the inner surface of the second member 1131a. In addition, as described above, the second magnet 1142 may be disposed in the first groove gr1, and the repulsive force RF2 generated by the second magnet 1142 may be transmitted to the fourth seating groove 1131S4a of the holder 1131 through the second member 1131a (RF2'). Therefore, the holder 1131 may apply a force to the inclined guide portion 1141 in the same direction as the repulsive force RF2 generated by the second magnet 1142.

[0279] The first member 1126 may be disposed in the second area AR2. The first member 1126 may include a second groove gr2 facing the first groove gr1. In addition, the first member 1126 may include a second protrusion groove PH2 disposed in a surface corresponding to the second groove gr2. In addition, the repulsive force RF1 generated by the first magnet 1143 may be applied to the first member 1126. Therefore, the first member 1126 and the second member 1131a may press the inclined guide portion 1141 disposed between the first member 1126 and the retainer 1131 by the repulsive forces RF1 and RF2' generated. Therefore, even after the retainer is tilted relative to the X-axis or Y-axis due to the current applied to the third coil and the fourth coil or the fifth coil 1152c, the connection between the retainer 1131, the first shell 1120 and the inclined guide portion 1141 can be maintained.

[0280] The inclined guide portion 1141 may be disposed in the third area AR3. As described above, the inclined guide portion 1141 may include a first protruding portion PR1 and a second protruding portion PR2. In this case, the first protruding portion PR1 and the second protruding portion PR2 may be disposed on the second surface 1141b and the first surface 1141a of the base BS, respectively. As described above, even in other embodiments described below, the first protruding portion PR1 and the second protruding portion PR2 may be positioned on the facing surface of the base BS in various ways.

[0281] The first protrusion groove PH1 can be positioned in the fourth seating groove 1131S4a. In addition, the first protrusion PR1 of the tilting guide portion 1141 can be received in the first protrusion groove PH1. Therefore, the first protrusion PR1 can be in contact with the first protrusion groove PH1. The maximum diameter of the first protrusion groove PH1 can correspond to the maximum diameter of the first protrusion PR1. This can also be applied to the second protrusion groove PH2 and the second protrusion PR2 in the same manner. That is, the maximum diameter of the second protrusion groove PH2 can correspond to the maximum diameter of the second protrusion PR2. In addition, the second protrusion PR2 can be in contact with the second protrusion groove PH2. With this configuration, the first axis tilting can be easily performed relative to the first protrusion PR1, the second axis tilting can be easily performed relative to the second protrusion PR2, and the tilting radius can be increased.

[0282] In addition, since the tilt guide portion 1141 can be arranged side by side with the second member 1131a and the first member 1126 in the third direction (Z-axis direction), the tilt guide portion 1141 can overlap with the optical member 1132 in the first direction (X-axis direction). More specifically, in an embodiment, the first protrusion PR1 can overlap with the optical member 1132 in the first direction (X-axis direction). In addition, at least a portion of the first protrusion PR1 can overlap with the fifth coil 1152c or the fifth magnet 1151c in the first direction (X-axis direction). That is, in the camera actuator according to this embodiment, each protrusion as the central axis of the tilt can be positioned adjacent to the center of gravity of the mover 1130. Therefore, the tilt guide portion can be positioned near the center of gravity of the holder. Therefore, the camera actuator according to this embodiment can minimize the moment value of the tilt of the holder, and also minimize the consumption of the current applied to the coil unit, etc. to tilt the holder, thereby minimizing power consumption and improving the reliability of the device.

[0283] In addition, the second magnet 1142 and the first magnet 1143 may not overlap with the fifth coil 1152c or the optical member 1132 in the first direction (X-axis direction). That is, in an embodiment, the second magnet 1142 and the first magnet 1143 may be arranged to be spaced apart from the fifth coil 1152c or the optical member 1132 in the third direction (Z-axis direction). Therefore, the magnetic force transmitted from the second magnet 1142 and the first magnet 1143 to the fifth coil 1152c can be minimized. Therefore, the camera actuator according to this embodiment can easily perform vertical driving (Y-axis tilt) and can minimize power consumption.

[0284] In addition, as described above, the second Hall sensor 1153b positioned inside the fifth coil 1153c can detect changes in magnetic flux and thereby perform position sensing between the fifth magnet 1151c and the second Hall sensor 1153b. In this case, the offset voltage of the second Hall sensor 1153b can be changed according to the influence of the magnetic field generated by the second magnet 1142 and the first magnet 1143.

[0285] The first camera actuator according to this embodiment may include a second member 1131a, a second magnet 1142, a first magnet 1143, a first member 1126, a tilt guide portion 1141, and a holder 1131 that are sequentially disposed. However, since the second magnet is positioned in the second member and the first magnet is positioned in the first member, the second member, the first member, the tilt guide portion, and the holder may be sequentially disposed.

[0286] In addition, in an embodiment, the separation distance of the second magnet 1142 and the first magnet 1143 from the holder 1131 (or the optical member 1132) in the third direction may be greater than the separation distance from the inclined guide portion 1141. Therefore, the second Hall sensor 1153b below the holder 1131 may also be arranged to be spaced apart from the second magnet 1142 and the first magnet 1143 by a predetermined distance. Therefore, the influence of the magnetic field generated by the second magnet 1142 and the first magnet 1143 on the second Hall sensor 1153b can be minimized, thereby preventing the Hall voltage from being saturated due to concentration to a positive or negative value. That is, this configuration can allow the Hall electrode to have a range in which Hall calibration can be performed. In addition, temperature also affects the electrode of the Hall sensor, and the resolution of the camera lens varies according to the temperature, but in an embodiment, the situation where the Hall voltage is concentrated to a positive or negative value can be prevented to compensate for the resolution of the lens accordingly, thereby easily preventing the degradation of the resolution.

[0287] In addition, a circuit for compensating for an offset relative to the output of the second Hall sensor 1153b (ie, the Hall voltage) can also be easily designed.

[0288] In addition, according to this embodiment, some areas of the inclined guide portion 1141 may be positioned outside the fourth holder outer surface, further outward than the fourth holder outer surface of the holder 1131 .

[0289] In addition to the first protruding portion PR1 and the second protruding portion PR2, the inclined guide portion 1141 may be seated in the fourth seating groove 1131S4a relative to the base BS. That is, the length of the base BS in the third direction (Z-axis direction) may be smaller than the length of the fourth seating groove 1131S4a in the third direction (Z-axis direction). With this configuration, miniaturization can be easily achieved.

[0290] In addition, the maximum length of the inclined guide portion 1141 in the third direction (Z-axis direction) can be greater than the length of the fourth seating groove 1131S4a in the third direction (Z-axis direction). Therefore, as described above, the end of the second protrusion PR2 can be positioned between the outer surface of the fourth retainer and the first member 1126. That is, at least a portion of the second protrusion PR2 can be positioned more in the direction opposite to the third direction (Z-axis direction) than the retainer 1131. That is, the retainer 1131 can be spaced apart from the end of the second protrusion PR2 (the portion in contact with the second protrusion groove) by a predetermined distance in the third direction (Z-axis direction).

[0291] In addition, 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. Specifically, the front surface 1131aes of the second member 1131a according to the embodiment may be positioned from the front surface 1126es of the first member 1126 along the third direction (Z-axis direction). 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. To this end, the first member 1126 may have a structure extending inwardly and bending. In addition, some areas of the second member 1131a may be positioned in a groove formed by the above-mentioned extending and bending structure of the first member 1126.

[0292] With this configuration, since the second member 1131a is positioned inside the first member 1126, space efficiency can be improved and miniaturization can be achieved. In addition, even when driving (tilting or rotation of the mover 1130) by electromagnetic force is performed, the second member 1131a does not protrude outward from the first member 1126, and thus can block contact with nearby devices. Therefore, reliability can be improved.

[0293] In addition, a predetermined separation space may exist between the second magnet 1142 and the first magnet 1143. That is, the second magnet 1142 and the first magnet 1143 may face each other with the same polarity.

[0294] Fig.12a is a perspective view of a first camera actuator according to an embodiment, Figure 12b It is along Fig.12a The view of the line S-S' in Fig.12c It shows Figure 12b An exemplary view of the movement of the first camera actuator shown in FIG.

[0295] Reference Figures 12a to 12c, the Y-axis tilt may be performed by the first camera actuator according to this embodiment. That is, OIS may be implemented by rotating the first camera actuator in the first direction (X-axis direction).

[0296] In an implementation, the fifth magnet 1151 c disposed under the holder 1131 may generate an electromagnetic force with the fifth coil 1152 c to tilt or rotate the mover 1130 with respect to the second direction (Y-axis direction).

[0297] Specifically, the repulsive force between the second magnet 1142 and the first magnet 1143 may be transmitted to the second member 1131a and the first member 1126, and finally to the inclined guide portion 1141 disposed between the first member 1126 and the holder 1131. Therefore, the inclined guide portion 1141 may be pressed by the mover 1130 and the first housing 1120 by the above-mentioned repulsive force.

[0298] In addition, the second protrusion PR2 may be supported by the first member 1126. In this case, in an embodiment, the inclined guide portion 1141 may be rotated or tilted relative to the second protrusion PR2 protruding toward the first member 1126, that is, rotated or tilted relative to the second direction (Y-axis direction), and the second protrusion PR2 is a reference axis (or rotation axis). That is, the inclined guide portion 1141 may be rotated or tilted relative to the second protrusion PR2 protruding toward the first member 1126 in the first direction (X-axis direction), and the second protrusion PR2 is a reference axis (or rotation axis).

[0299] For example, OIS may be implemented by rotating the mover 1130 by a first angle θ1 in the X-axis direction (X1→X1a) by means of first electromagnetic forces F1A and F1B between a fifth magnet 1151c disposed in the third seating groove and a fifth coil 1152c disposed on the third plate side portion.

[0300] Conversely, OIS can be achieved by rotating the mover 1130 by a first angle θ1 in a direction opposite to the X-axis direction (X1→X1b) by means of first electromagnetic forces F1A and F1B between a fifth magnet 1151c disposed in the third seating groove and a fifth coil 1152c disposed on the third plate side portion.

[0301] The first angle θ1 may be in the range of ±1° to ±3°. However, the present invention is not limited thereto.

[0302] Hereinafter, in the first camera actuator according to various embodiments, the electromagnetic force may move the mover by generating a force in the described direction, or may move the mover in the described direction even when generating a force in another direction. That is, the described direction of the electromagnetic force is the direction of the force generated by the magnet and the coil for moving the mover. For example, the first electromagnetic forces F1A and F1B may act in the third direction or in the direction opposite to the third direction.

[0303] In addition, the center MC1 of the second magnet 1142 and the center MC2 of the first magnet 1143 may be arranged side by side in the third direction (Z-axis direction). That is, the center line TL1 connecting the center MC1 of the second magnet 1142 to the center MC2 of the first magnet 1143 may be parallel to the third direction (Z-axis direction).

[0304] In addition, the bisector TL2 that bisects the second protruding portion PR2 and corresponds to the third direction (Z-axis direction) may be parallel to the center line TL1. That is, the bisector TL2 may be a line that bisects the second protruding portion PR2 in the first direction (X-axis direction), and a plurality of bisectors TL2 may be provided.

[0305] In an embodiment, the bisector TL2 can be arranged to be spaced apart from the center line TL1 in the first direction (X-axis direction). The bisector TL2 can be positioned above the center line TL1. With this configuration, since the separation distance between the fifth coil 1152c and the fifth magnet 1151c can be increased, the holder can perform two-axis tilting more accurately. In addition, when no current is applied to the coil, the position of the holder can remain equal.

[0306] More specifically, since the center MC1 of the second magnet 1142 and the center MC2 of the first magnet 1143 are spaced apart from the bisector TL2 in the first direction (X-axis direction), a force (e.g., a repulsive force) between the second magnet 1142 and the first magnet 1143 can act at a distance spaced apart from the bisector TL2 corresponding to the optical axis in the first direction (X-axis direction). In addition, momentum is generated in the mover 1130 by such a force. However, when the center MC1 of the second magnet 1142 and the center MC2 of the first magnet 1143 are positioned on the bisector TL2, there is a problem that the positions of the tilt guide portion and the second magnet 1142 cannot be maintained after tilting during calibration. That is, in the camera actuator according to this embodiment, since the center MC1 of the second magnet 1142 and the center MC2 of the first magnet 1143 are not set on the bisector TL2, the positions of the tilt guide portion and the second magnet 1142 can be maintained after tilting or rotating.

[0307] In another embodiment, the center MC1 of the second magnet 1142 and the center MC2 of the first magnet 1143 may be disposed to be spaced apart from each other in the first direction (X-axis direction).

[0308] In addition, the center MC1 of the second magnet 1142 and the center MC2 of the first magnet 1143 may not be positioned on the bisector TL2. For example, the center MC1 of the second magnet 1142 and the center MC2 of the first magnet 1143 may be positioned above the bisector TL2.

[0309] Therefore, since the separation distance between the fifth coil 1152c and the fifth magnet 1151c increases, the holder can perform two-axis tilting more accurately. In addition, when no current is applied to the coil, the position of the holder can be equally maintained.

[0310] In addition, the second magnet 1142 and the first magnet 1143 may have different lengths in the first direction (X-axis direction).

[0311] In an embodiment, the area of ​​the second magnet 1142 coupled to the second member 1131a and tilted with the mover 1130 may be greater than the area of ​​the first magnet 1143. For example, the length of the second magnet 1142 in the first direction (X-axis direction) may be greater than the length of the first magnet 1143 in the first direction (X-axis direction). In addition, the length of the second magnet 1142 in the second direction (Y-axis direction) may be greater than the length of the first magnet 1143 in the second direction (Y-axis direction). In addition, the first magnet 1143 may be positioned in a virtual straight line extending from both ends of the second magnet 1142 along a third direction.

[0312] With this configuration, when tilting or rotating, even when the magnet on one side (e.g., the second magnet) is tilted, it is easy to prevent the force other than the vertical force generated by the tilt. That is, even when the second magnet is vertically tilted together with the mover 1130, the second magnet may not receive a force (e.g., a repulsive force or an attractive force) resisting the tilt from the first magnet 1143. Therefore, the driving efficiency can be improved.

[0313] Fig.13a It is along Fig.12a A view of the line R-R' in FIG. Fig.13b yes Fig.13a An exemplary view of the movement of the first camera actuator shown in FIG.

[0314] Reference Fig.13a and 13b , X-axis tilting may be performed. That is, OIS may be implemented by tilting or rotating the mover 1130 in the Y-axis direction.

[0315] In an embodiment, the third magnet 1151a and the fourth magnet 1151b disposed on the holder 1131 may generate electromagnetic force with the third coil 1152a and the fourth coil 1152b, respectively, and tilt or rotate the tilt guide portion 1141 and the mover 1130 relative to the first direction (X-axis direction).

[0316] Specifically, the repulsive force between the second magnet 1142 and the first magnet 1143 may be transmitted to the first member 1126 and the holder 1131, and finally to the inclined guide portion 1141 disposed between the holder 1131 and the first member 1126. Therefore, the inclined guide portion 1141 may be pressed by the mover 1130 and the first housing 1120 by the above-mentioned repulsive force.

[0317] In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be spaced apart from each other in the first direction (X-axis direction) and supported by the first protrusion groove PH1 formed in the fourth seating groove 1131S4a of the holder 1131. In addition, in an embodiment, the tilt guide portion 1141 may be rotated or tilted relative to the first protrusion PR1 protruding toward the holder 1131 (for example, in the third direction), that is, rotated or tilted relative to the first direction (X-axis direction), the first protrusion PR1 being a reference axis (or rotation axis).

[0318] For example, OIS can be achieved by rotating the mover 1130 in the Y-axis direction at a second angle θ2 (Y1→Y1a) by means of the second electromagnetic forces F2A and F2B between the first magnet 1151a and the second magnet 1151b disposed in the first seating groove and the first coil 1152a and the second coil 1152b disposed on the first plate side portion and the second plate side portion. In addition, OIS can be achieved by rotating the mover 1130 in the Y-axis direction at a second angle θ2 (Y1→Y1b) by means of the second electromagnetic forces F2A and F2B between the first magnet 1151a and the second magnet 1151b disposed in the first seating groove and the first coil 1152a and the second coil 1152b disposed on the first plate side portion and the second plate side portion. The second angle θ2 may be in the range of ±1° to 3°. However, the present invention is not limited thereto.

[0319] In addition, as described above, the electromagnetic force generated by the third magnet 1151a and the fourth magnet 1151b and the third coil 1152a and the fourth coil 1152b can act in the third direction or in the direction opposite to the third direction. For example, the electromagnetic force can be generated on the left side portion of the mover 1130 in the third direction (Z-axis direction), and can act on the right side portion of the mover 1130 in the direction opposite to the third direction (Z-axis direction). Therefore, the mover 1130 can rotate relative to the first direction. Alternatively, the mover 130 can move in the second direction.

[0320] As described above, the second camera actuator according to the embodiment can control the mover 1130 to rotate in the first direction (X-axis direction) or the second direction (Y-axis direction) by the electromagnetic force between the driving magnet in the holder and the driving coil provided in the first shell, thereby minimizing the occurrence of eccentricity or tilt when implementing OIS and providing optimal optical characteristics. In addition, as described above, "Y-axis tilt" is a rotation or tilt in the first direction (X-axis direction), and "X-axis tilt" is a rotation or tilt in the second direction (Y-axis direction).

[0321] Fig.14 is a perspective view of a second camera actuator according to an embodiment, Fig.15 is an exploded perspective view of a second camera actuator according to an embodiment, Fig.16 It is along Fig.14 The view of line D-D' in Fig.17a , Fig.17b and Fig.17c is a perspective view of a second housing in a second camera actuator according to an embodiment, Fig.18 and Fig.19 is a view for describing each driving of the lens assembly according to the embodiment, and Fig. 20 is a view for describing driving of a second camera actuator according to an embodiment.

[0322] Reference Figures 14 to 16 , the first camera actuator 1200 according to this embodiment may include a lens portion 1220, a second housing 1230, a second driving portion 1250, a base portion 1260, a second plate portion 1270, a coupling member 1280, a stopper portion ST, and a yoke portion YK. In addition, the second camera actuator 1200 may further include a second shielding cover (not shown), an elastic portion (not shown), and a coupling member (not shown).

[0323] A second shield cover (not shown) can be positioned in an area (e.g., the outermost portion) of the second camera actuator 1200 and positioned to surround the components described below (lens portion 1220, second housing 1230, second driving portion 1250, base portion 1260, second plate portion 1270, and image sensor IS).

[0324] The second shielding case (not shown) may block or reduce electromagnetic waves generated from the outside. Therefore, the occurrence of malfunction of the second driving part 1250 may be reduced.

[0325] The lens portion 1220 may be positioned in a second shield case (not shown). The lens portion 1220 may be moved in a third direction (Z-axis direction or optical axis direction). Therefore, the above-described AF function and zoom function may be performed.

[0326] In addition, the lens portion 1220 may be positioned in the second housing 1230. Therefore, at least a portion of the lens portion 1220 may be moved in the second housing 1230 in the optical axis direction or the third direction (Z-axis direction).

[0327] Specifically, the lens portion 1220 may include a lens group 1221 and a moving assembly 1222 .

[0328] First, the lens group 1221 may include at least one lens. In addition, although a plurality of lens groups 1221 may be provided, the following description will be made based on one lens group.

[0329] The lens group 1221 may be coupled to the moving assembly 1222 to move in a third direction (Z-axis direction) by an electromagnetic force generated from the first magnet 1252 a and the second magnet 1252 b coupled to the moving assembly 1222 .

[0330] In an embodiment, 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 sequence in the optical axis direction. In addition, 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.

[0331] The first lens group 1221a may be fixedly coupled to the 2-1 housing. That is, the first lens group 1221a may not move in the optical axis direction.

[0332] The second lens group 1221b may be coupled to the first lens assembly 1222a to move in a third direction or an optical axis direction. The magnification adjustment may be performed by moving the first lens assembly 1222a and the second lens group 1221b.

[0333] The third lens group 1221c may be coupled to the second lens assembly 1222b to move in a third direction or optical axis direction. Focus adjustment or automatic focusing may be performed by moving the third lens group 1221c.

[0334] However, the present invention is not limited to the number of lens groups, and the fourth lens group 1221d may not exist, or an additional lens group other than the fourth lens group 1121d may be further provided.

[0335] The moving assembly 1222 may include an opening area around the lens group 1221. The moving assembly 1222 may be used interchangeably with the lens assembly. In addition, the moving assembly 1222 may be coupled to the lens group 1221 by any method. In addition, the moving assembly 1222 may include a groove in its side surface, and may be coupled to the first magnet 1252a and the second magnet 1252b by the groove. A coupling member or the like may be applied to the groove.

[0336] In addition, the moving assembly 1222 can be connected to an elastic part (not shown) at its upper end and rear end. Therefore, the moving assembly 1222 can be supported by the elastic part (not shown) while moving in the third direction (Z-axis direction). In other words, the position of the moving assembly 1222 can be maintained in the third direction (Z-axis direction). The elastic part (not shown) can be formed by any elastic element such as a leaf spring.

[0337] The moving assembly 1222 may be positioned in the second housing 1230 and may include a first lens assembly 1222a and a second lens assembly 1222b.

[0338] The area of ​​the second lens assembly 1222b in which the third lens group is seated can be positioned at the rear end of the first lens assembly 1221a. That is, the area of ​​the second lens assembly 1222b in which the third lens group 1221c is seated can be positioned between the area of ​​the first lens assembly 1222a in which the second lens group 1221b is seated and the image sensor.

[0339] Each of the first lens assembly 1222a and the second lens assembly 1222b can be seated inside the 2-2 housing. For example, the recessed portion in the first lens assembly 1222a in which the spherical piece is disposed can be positioned to face the first side portion. In addition, the recessed portion in the second lens assembly 1222b in which the spherical piece is disposed can be positioned to face the second side portion. This will be described in detail below.

[0340] In addition, the second drive magnet can be seated on the outer surface of the first lens assembly 1222a and the second lens assembly 1222b. For example, the second magnet 1252b can be seated on the outer surface of the second lens assembly 1222b. The first magnet 1252a can be seated on the outer surface of the first lens assembly 1222a.

[0341] The second housing 1230 may be disposed between the lens portion 1220 and a second protective cover (not shown). In addition, the second housing 1230 may be disposed to surround the lens portion 1220.

[0342] The second housing 1230 may include a 2-1 housing 1231 and a 2-2 housing 1232. The 2-1 housing 1231 may be coupled to the first lens group 1221 a and may also be coupled to the above-mentioned first camera actuator. The 2-1 housing 1231 may be positioned in front of the 2-2 housing 1232.

[0343] In addition, the 2-2 housing 1232 may be positioned at a rear end portion of the 2-1 housing 1231. The lens portion 1220 may be seated inside the 2-2 housing 1232.

[0344] A hole may be formed in the side portion of the second housing 1230 (or the 2-2 housing 1232 ). The first coil 1251 a and the second coil 1251 b may be disposed in the hole. The hole may be positioned to correspond to the above-mentioned groove of the moving component 1222 .

[0345] In an embodiment, the second housing 1230 (particularly, the 2-2 housing 1232) may include a first side portion 1232a and a second side portion 1232b. The first side portion 1232a and the second side portion 1232b may be positioned to correspond to each other. For example, the first side portion 1232a and the second side portion 1232b may be symmetrically arranged relative to the third direction. A second drive coil 1251 may be positioned on the first side portion 1232a and the second side portion 1232b. In addition, the second plate portion 1270 may be seated on the outer surface of the first side portion 1232a and the second side portion 1232b. That is, a first plate 1271 may be positioned on the outer surface of the first side portion 1232a, and a second plate 1272 may be positioned on the outer surface of the second side portion 1232b.

[0346] In addition, as another example, the first guide groove and the second guide groove of the recess facing the first lens assembly 1222a (wherein the seating groove of the first spherical member and the second spherical member are seated) can be positioned in the first side portion. In addition, the first guide groove and the second guide groove of the recess facing the second lens assembly 1222b can be positioned in the second side portion. In this case, there is a structure in which a separate member (e.g., a guide portion) including the first guide groove and the second guide groove is connected to the 2-2 housing 1232. However, in this embodiment, an integrated structure in which the first guide groove and the second guide groove are formed in the 2-2 housing 1232 will be described. In addition, as another example, the first guide portion and the second guide portion can be positioned to correspond to each other. For example, the first guide portion and the second guide portion can be positioned to face each other relative to the third direction (Z-axis direction). In addition, at least a portion of the first guide portion and at least a portion of the second guide portion can overlap each other in the second direction (Y-axis direction).

[0347] The first guide portion and the second guide portion may include at least one groove (e.g., a guide groove) or a recess. In addition, the first spherical member B1 or the second spherical member B2 may be seated in the groove or the recess. Therefore, the first spherical member B1 or the second spherical member B2 may move in the guide groove of the first guide portion or the guide groove of the second guide portion along the third direction (Z-axis direction).

[0348] Alternatively, the first spherical member B1 or the second spherical member B2 may move in the third direction along a track formed inside the first side portion 1232 a of the second housing 1230 or a track formed inside the second side portion 1232 b of the second housing 1230 .

[0349] Therefore, the first lens assembly 1222a and the second lens assembly 1222b may move in the third direction.

[0350] According to an embodiment, the first spherical member B1 may be disposed on the upper side portion of the first lens assembly 1222a or the second lens assembly 1222b. In addition, the second spherical member B2 may be disposed on the lower side portions of the first lens assembly 1222a and the second lens assembly 1222b. For example, the first spherical member B1 may be positioned above the second spherical member B2. Therefore, at least a portion of the first spherical member B1 may overlap with the second spherical member B2 in the first direction (X-axis direction) according to the position.

[0351] In addition, the 2-2 housing 1232 may include first guide grooves GG1a and GG2a facing the first recess RS1. In addition, the 2-2 housing 1232 may 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 a third direction (Z-axis direction). In addition, 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 having inclined side surfaces, and the second guide grooves GG1b and GG2b may be grooves having side surfaces perpendicular to the lower surface.

[0352] The first magnet and the first coil can be positioned on the first side portion. In addition, the second magnet and the second coil can be positioned on the second side portion. In addition, the second magnet 1252b can be positioned to face the second coil 1251b. In addition, the first magnet 1252a can be positioned to face the first coil 1251a.

[0353] The elastic part (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. In addition, the first elastic member (not shown) and the second elastic member (not shown) may be formed by a leaf spring as described above. In addition, the first elastic member (not shown) and the second elastic member (not shown) may provide elasticity for moving the moving assembly 1222. However, the present invention is not limited to the above-mentioned positions, and the elastic part may be provided at any position.

[0354] In addition, the second driving part 1250 can provide a driving force for moving the lens part 1220 along a third direction (Z-axis direction). The second driving part 1250 may include a second driving coil 1251 and a second driving magnet 1252. In addition, the second driving part 1250 may also include a second Hall sensor part. The second Hall sensor part 1253 may include at least one fourth Hall sensor 1253a and may be positioned on the inside or outside of the second driving coil 1251.

[0355] The moving component may move in the third direction (Z-axis direction) by the electromagnetic force generated between the second driving coil 1251 and the second driving magnet 1252 .

[0356] The second driving coil 1251 may include a first coil 1251a and a second coil 1251b. The first coil 1251a and the second coil 1251b may be disposed in a hole formed in a side portion of the second housing 1230. In addition, the first coil 1251a and the second coil 1251b may be electrically connected to the second plate portion 1270. Therefore, the first coil 1251a and the second coil 1251b may receive current, etc., through the second plate portion 1270.

[0357] The second driving magnet 1252 may include a first magnet 1252a and a second magnet 1252b. The first magnet 1252a and the second magnet 1252b may be disposed in the above-mentioned groove of the moving component 1222 and positioned to correspond to the first coil 1251a and the second coil 1251b.

[0358] The base portion 1260 may be positioned between the lens portion 1220 and the image sensor IS. Components such as filters may be fixed to the base portion 1260. In addition, the base portion 1260 may be provided to surround the above-mentioned image sensor. With this configuration, since the image sensor is protected from foreign matter and the like, the reliability of the device may be improved. However, in some of the drawings, the following description will be made without the base portion. However, the present invention may not be limited to this structure.

[0359] In addition, the second camera actuator 1200 may be a zoom actuator or an AF actuator. For example, the second camera actuator 1200 may support one or more lenses and perform at least one of an AF function or a zoom function by moving the lens according to a predetermined control signal of the controller.

[0360] In addition, the second camera actuator can be a fixed zoom or a continuous zoom. For example, the second camera actuator can provide movement of the lens group 1221.

[0361] In addition, the second camera actuator may be formed by a plurality of lens assemblies. For example, in addition to the first lens assembly 1222a and the second lens assembly 1222b, at least one of a third lens assembly (not shown) and a guide pin (not shown) may be provided in the second camera actuator. The above contents may be applied to the second camera actuator. Therefore, the second camera actuator may perform a high-power zoom function through the second driving portion. For example, the first lens assembly 1222a and the second lens assembly 1222b may be a moving lens that moves through the second driving portion and the guide pin (not shown), and the third lens assembly (not shown) may be a fixed lens, but the present invention is not limited thereto. For example, the third lens assembly (not shown) may perform the function of a focuser through which light forms an image at a specific position, and the first lens assembly may perform the function of a converter for causing the image formed by the third lens assembly (not shown) as a focuser to be reformed at another position. At the same time, because the distance to the object or the image distance varies greatly, the first lens assembly can be in a state where the magnification varies greatly, and the first lens assembly as a converter can play an important role in the focal length or magnification variation of the optical system. At the same time, the imaging point of the image formed by the first lens assembly as a converter can be slightly different depending on the position. Therefore, the second lens assembly can perform a position compensation function for the image formed by the converter. For example, the second lens assembly can use the imaging point of the image formed by the second lens assembly 1222b as a converter to perform the function of a compensator, which is used to accurately form an image at the actual position of the image sensor. However, the configuration of the embodiment will be described with reference to the following drawings.

[0362] The image sensor may be positioned inside or outside the second camera actuator. In an embodiment, as shown, the image sensor may be positioned outside the second camera actuator. For example, the image sensor may be positioned on a circuit board. The image sensor may receive light and convert the received light into an electrical signal. In addition, the image sensor may include a plurality of pixels in the form of an array. In addition, the image sensor may be positioned on an optical axis.

[0363] The second plate portion 1270 may be in contact with the second shell side portion. For example, the second plate portion 1270 may be positioned on the outer surface (first side surface) of the first side portion and the outer surface (second side surface) of the second shell, particularly the 2-2 shell, and may be in contact with the first side surface and the second side surface.

[0364] The stopper portion ST includes a first stopper ST1 disposed at one end portion and a second stopper ST2 disposed at the other end portion of the 2-2 housing 1232. The first stopper ST1 and the second stopper ST2 may be sequentially disposed along the optical axis direction.

[0365] In addition, a plurality of first stoppers ST1 may be formed and may be disposed on each of the moving path of the first lens assembly and the moving path of the second lens assembly. For convenience, the 1-1 stopper ST1a and the 1-2 stopper ST1b will be described. Similarly, a plurality of second stoppers ST2 may be formed and may be disposed on each of the moving path of the first lens assembly and the moving path of the second lens. In addition, the 2-1 stopper ST2a and the 2-2 stopper ST2b will be described.

[0366] The 1-1 stopper ST1a and the 2-1 stopper ST2a may be positioned on a moving path of the first lens assembly. The 1-2 stopper ST1b and the 2-2 stopper ST2b may be positioned on a moving path of the second lens assembly.

[0367] The 1-1 stopper ST1a and the 1-2 stopper ST1b may overlap each other in the second direction. Alternatively, the 1-1 stopper ST1a and the 1-2 stopper ST1b may not be aligned in the second direction.

[0368] In addition, the 2-1 stopper ST2a and the 2-2 stopper ST2b may be positioned so as not to be aligned in the second direction. The distance between the 1-1 stopper ST1a and the 2-1 stopper ST2a in the third direction may be smaller than the distance between the 1-2 stopper ST1b and the 2-2 stopper ST2b. This is a configuration that reflects that the movable distance (stroke) of the first lens assembly is smaller than the movable distance (stroke) of the second lens assembly.

[0369] In an embodiment, the second yoke part or yoke part YK may be disposed outside the second driving part, and for example, the yoke part YK may be disposed outside the first coil and the second coil. The second yoke part may include a first yoke YK1 and a second yoke YK2.

[0370] The first yoke YK1 and the second yoke YK2 may be disposed opposite to each other. For example, the first yoke YK1 and the second yoke YK2 may be positioned corresponding to each other with respect to the optical axis.

[0371] The first yoke YK1 can be positioned adjacent to the first coil 1251a. The second yoke yk2 can be positioned adjacent to the second coil 1251b. The first coil 1251a and the second coil 1251b can be positioned inside the first yoke YK1 and the second yoke YK2. In addition, the first yoke YK1, the first coil 1251a, the second coil 1251b and the second yoke YK2 can be arranged in sequence along a direction (e.g., the second direction). The first yoke YK1 can generate an attraction with the first magnet. In addition, the second yoke YK2 can generate an attraction with the second magnet. Therefore, the posture of the first lens assembly and the second lens assembly can be maintained.

[0372] In addition, the thickness of the first yoke YK1 and the thickness of the second yoke YK2 can vary in some areas. With this configuration, the influence of the magnetic force generated by the first magnet and the second magnet or the first coil and the second coil on other magnets or coils can be suppressed. For example, the first yoke YK1 can suppress the magnetic force generated by the first magnet from being applied to the second magnet and the second coil.

[0373] Reference Fig.17a , Fig.17b and Fig.17c As described above, the second housing 1230 (particularly, the 2-2 housing 1232) may include a first side portion 1232a and a second side portion 1232b. The first side portion 1232a and the second side portion 1232b may be positioned to correspond to each other. For example, the first side portion 1232a and the second side portion 1232b may be symmetrically arranged relative to a third direction. The second drive coil may be positioned on the first side portion 1232a and the second side portion 1232b. In addition, the second plate portion may be seated on the outer surface of the first side portion 1232a and the outer surface of the second side portion 1232b. The second plate portion may be positioned on the outside of the drive coil and electrically connected to the drive coil.

[0374] For example, the first plate may be positioned on an outer surface of the first side portion 1232a, and the second plate may be positioned on an outer surface of the second side portion 1232b.

[0375] In addition, the first guide grooves GG1a and GG1b in which the first spherical member and the second spherical member are seated may be positioned in the inner surface of the first side portion 1232a. The first guide grooves GG1a and GG1b may face the above-mentioned first recess and second recess. Similarly, the second guide grooves GG2a and GG2 in which the first spherical member and the second spherical member are seated may be positioned in the inner surface of the second side portion 1232b. The first guide grooves GG1a and GG1b may face the above-mentioned first recess and second recess.

[0376] In addition, the first side portion 1232a may include a first side portion hole 1232ah. The first magnet may be positioned in the first side portion hole 1232ah. In addition, the length of the first side portion hole 1232ah in the first direction may be smaller than the length of the first coil in the first direction.

[0377] In addition, the second side portion 1232b may include a second side portion hole 1232bh. The second magnet may be positioned in the second side portion hole 1232bh. In addition, the length of the second side portion hole 1232bh in the first direction may be smaller than the length of the second coil in the first direction.

[0378] In addition, the 2-2 housing 1232 may include a housing hole 1232h provided in one of the upper and lower portions thereof. The coupling may be easily performed through the housing hole 1232h, or the first and second lens assemblies may be inspected (eg, visually inspected).

[0379] In addition, the first guide grooves GG1a and GG1b positioned on the first side portion 1232a may extend in the third direction. In addition, 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 guide groove GG1b may be a flat structure. This may also be applied to the second guide grooves GG2a and GG2b in the same manner. The first spherical member and the second spherical member may be seated in the inclined groove and the flat structure so that the first lens assembly or the second lens assembly may move in the optical axis direction.

[0380] Reference Fig.18 and Fig.19 In the camera module according to the embodiment, by generating an electromagnetic force DEM1 between the first magnet 1252a and the first coil 1251a, the first lens assembly 1222a can be moved along a track positioned on the inner surface of the shell through the first spherical part B1 and the second spherical part B2 in a direction parallel to the optical axis, that is, along a third direction (Z-axis direction) or in a direction opposite to the third direction.

[0381] Specifically, in the camera module according to the embodiment, the first magnet 1252a may be provided in the first lens assembly 1222a, for example, by a vertical magnetization method. For example, in the embodiment, both the N pole and the S pole of the first magnet 1252a may be positioned to face the first coil 1251a. Therefore, each of the N pole and the S pole of the first magnet 1252a may be provided to correspond to a region where a current flows from the first coil 1251a in the X-axis direction or in a direction opposite to the X-axis direction.

[0382] In an embodiment, when a magnetic force is applied from the N pole of the first magnet 1252a in a direction opposite to the second direction (Y-axis direction) and a current DE1 flows in a direction opposite to the first direction (X-axis direction) at the first coil 1251a corresponding to the N pole, the electromagnetic force DEM1 can act in a third direction (Z-axis direction) according to the interaction of electromagnetic forces (e.g., Fleming's left-hand rule).

[0383] In addition, in an embodiment, when a magnetic force is applied from the S pole of the first magnet 1252a along the second direction (Y-axis direction) and the current DE1 flows along the first direction (X-axis direction) at the first coil 1251a corresponding to the S pole, the electromagnetic force DEM1 can act along the Z-axis direction according to the interaction of the electromagnetic forces.

[0384] At this time, since the first coil 1251a is fixed to the side portion of the second housing, the first lens assembly 1222a on which the first magnet 1252a is disposed can move in a direction opposite to the Z-axis direction by the electromagnetic force DEM1 according to the current direction. That is, the second driving magnet can move in a direction opposite to the electromagnetic force applied to the second driving coil. In addition, the direction of the electromagnetic force can change according to the current of the coil and the magnetic force of the magnet.

[0385] Therefore, the first lens assembly 1222a can be moved in a third direction or a direction parallel to the optical axis direction (in two directions) along a track positioned on the inner surface of the housing through the first spherical member B1 and the second spherical member B2. At this time, the electromagnetic force DEM1 can be controlled to be proportional to the current DE1 applied to the first coil 1251a.

[0386] The first lens assembly 1222a or the second lens assembly 1222b may include a first recess RS1 in which the first spherical member B1 is seated. In addition, the first lens assembly 1222a or the second lens assembly 1222b may include a second recess RS2 in which the second spherical member B2 is seated. The length of the first recess RS1 may be preset in the optical axis direction (Z-axis direction). In addition, the length of the second recess RS2 may be preset in the optical axis direction (Z-axis direction). Therefore, the moving distance of the first spherical member B1 and the second spherical member B2 may be adjusted in each recess along the optical axis direction. That is, the first recess RS1 or the second recess RS2 may be a stopper for the first spherical member B1 and the second spherical member B2.

[0387] In addition, in the camera module according to the embodiment, the second magnet 1252b may be provided on the second lens assembly 1222b, for example, by a vertical magnetization method, etc. For example, in the embodiment, both the N pole and the S pole of the second magnet 1252b may be positioned to face the second coil 1251b. Therefore, each of the N pole and the S pole of the second magnet 1252b may be provided to correspond to a region where a current flows from the second coil 1251b in the X-axis direction or in a direction opposite to the X-axis direction.

[0388] In an embodiment, when a magnetic force DM2 is applied from the N pole of the second magnet 1252b along a second direction (Y-axis direction) and a current DE2 flows along a first direction (X-axis direction) at the second coil 1251b corresponding to the N pole, the electromagnetic force DEM2 can act along a third direction (Z-axis direction) according to the interaction of electromagnetic forces (e.g., Fleming's left-hand rule).

[0389] In addition, in an embodiment, when a magnetic force is applied from the S pole of the second magnet 1252b in a direction opposite to the second direction (Y-axis direction) and the current DE2 flows in a direction opposite to the first direction (X-axis direction) at the second coil 1251b corresponding to the S pole, the electromagnetic force DEM2 can act along the Z-axis direction according to the interaction of the electromagnetic forces.

[0390] At this time, since the second coil 1251b is fixed to the side portion of the second shell, the second lens assembly 1222b on which the second magnet 1252b is disposed can move in a direction opposite to the Z-axis direction by the electromagnetic force DEM2 according to the direction of the current. For example, as described above, the direction of the electromagnetic force can change according to the current of the coil and the magnetic force of the magnet. Therefore, the second lens assembly 1222b can move in a direction parallel to the third direction (Z-axis direction) along the track positioned on the inner surface of the second shell through the second spherical piece B2. At this time, the electromagnetic force DEM2 can be controlled to be proportional to the current DE2 applied to the second coil 1251b.

[0391] Reference Fig. 20 In the camera module according to the embodiment, the second driving part may provide driving forces F3A, F3B, F4A, and F4B that move the first lens assembly 1222a and the second lens assembly 1222b of the lens part 1220 in the third direction (Z-axis direction). As described above, the second driving part may include a second driving coil 1251 and a second driving magnet 1252. In addition, the lens part 1220 may be moved in the third direction (Z-axis direction) by the electromagnetic force generated between the second driving coil 1251 and the second driving magnet 1252.

[0392] At this time, the first coil 1251a and the second coil 1251b may be disposed in holes formed in the side portions (e.g., the first side portion and the second side portion) of the second housing 1230. In addition, the second coil 1251b may be electrically connected to the first board 1271. The first coil 1251a may be electrically connected to the second board 1272. Therefore, the first coil 1251a and the second coil 1251b may receive a driving signal (e.g., current) from a driving driver on the circuit board 1300 through the second board portion 1270.

[0393] At this time, the first lens assembly 1222a on which the first magnet 1252a is seated can be moved along the third direction (Z-axis direction) by the electromagnetic forces F3A and F3B between the first coil 1251a and the first magnet 1252a. In addition, the second lens group 1221b seated on the first lens assembly 1222a can also be moved along the third direction.

[0394] In addition, the second lens assembly 1222b on which the second magnet 1252b is seated can be moved along the third direction (Z-axis direction) by the electromagnetic forces F4A and F4B between the second coil 1251b and the second magnet 1252b. In addition, the third lens group 1221c seated on the second lens assembly 1222b can also be moved along the third direction.

[0395] Therefore, 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. In an embodiment, the magnification can be changed by moving the second lens group 1221b. That is, zooming can be performed. In addition, the focus can be adjusted by moving the third lens group 1221c. That is, autofocus can be performed. With this configuration, the second camera actuator can be fixed zoom or continuous zoom.

[0396] Fig.21 is a schematic diagram showing a circuit board according to an embodiment.

[0397] Reference Fig.21 As described above, the circuit board 1300 according to the embodiment may include a first circuit board portion 1310 and a second circuit board portion 1320. The first circuit board portion 1310 may be positioned below the base and coupled to the base. In addition, the image sensor IS may be disposed on the first circuit substrate portion 1310. In addition, the first circuit board portion 1310 and the image sensor IS may be electrically connected. That is, the base may be positioned at the rear end portion of the second camera actuator, and the image sensor and the circuit board (first circuit board portion) may be positioned at the rear end portion of the base. The base may include a filter (e.g., infrared).

[0398] In addition, the second circuit board portion 1320 can be positioned on the side portion of the base. In particular, the second circuit board portion 1320 can be positioned on the first side portion of the base. Therefore, the second circuit board portion 1320 can be positioned adjacent to the first coil positioned adjacent to the first side portion for simple electrical connection. In addition, the second circuit board portion 1320 can be positioned on the second side portion. As described above, a plurality of second circuit board portions 1320 can be formed. However, the present invention is not limited thereto, and the second circuit board portion 1320 can be arranged only on any one of the first side portion and the second side portion.

[0399] In addition, the circuit board 1300 may further include a fixing plate (not shown) positioned on a side surface of the circuit board 1300. Therefore, even when the circuit board 1300 is made of a flexible material, the circuit board 1300 may be coupled to the base while maintaining rigidity through the fixing plate.

[0400] The second circuit board portion 1320 of the circuit board 1300 may be positioned on a side portion 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 surface mounting technology (SMT). However, the present invention is not limited to this method.

[0401] 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 (PCB), a flexible PCB, or a rigid-flexible PCB. However, the present invention is not limited to these types.

[0402] In addition, the circuit board 1300 may be electrically connected to another camera module in the terminal or a processor of the terminal. Therefore, the above-mentioned camera actuator and the camera module including the camera actuator may transmit and receive any signal in the terminal.

[0403] Fig. 22 is a perspective view of a first lens assembly, a first coupling member, a second coupling member, and a second lens assembly according to an embodiment.

[0404] Reference Fig. 22 , the first lens assembly 1222a and the second lens assembly 1222b can be arranged to be spaced apart from each other in the optical axis direction (Z axis direction). In addition, the first lens assembly 1222a and the second lens assembly 1222b can be moved along the optical axis direction (Z axis direction) by the second driving part. For example, an AF function or a zoom function can be performed by moving the first lens assembly 1222a and the second lens assembly 1222b.

[0405] In addition, the first lens assembly 1222a may include a first lens holder LAH1 for holding and coupling the second lens group 1221b. The first lens holder LAH1 may be coupled to the second lens group 1221b. In addition, the first lens holder LAH1 may include a first lens hole LH1 for receiving the second lens group 1221b. That is, the second lens group 1221b including at least one lens may be disposed in the first lens hole LH1. The first lens holder LAH1 is the same as the receiving portion (e.g., the first receiving portion or the second receiving portion) described below and is used in an interchangeable manner with the receiving portion.

[0406] In addition, the second lens assembly 1222b may include a second lens holder LAH2 for holding and connecting the third lens group 1221c. In addition, the second lens holder LAH2 may include a second lens hole LH2 for receiving the third lens group 1221c. That is, at least one lens may be disposed in the second lens hole LH2.

[0407] In an embodiment, each of the first lens assembly 1222a and the second lens assembly 1222b may include outer surfaces adjacent to each other. 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 lower surface of the first lens holder LAH1 relative to the optical axis direction (Z-axis direction). In addition, the third outer surface MM3 described below may be the upper surface of the first lens holder LAH1. In addition, the second outer surface MM2 may be the upper surface of the second lens holder LAH2, and the fourth outer surface MM4 may be the lower surface of the second lens holder LAH2.

[0408] In addition, at least a portion of the first outer surface MM1 and at least a portion of the second outer surface MM2 may overlap each other in the optical axis direction (Z axis direction). In an embodiment, at least some portions of the first to fourth outer surfaces MM1 to MM4 may overlap each other in the optical axis direction (Z axis direction).

[0409] For example, a coupling member (not shown) may be in contact with at least one of the first outer surface MM1 and the second outer surface MM2.

[0410] Fig.23 is a perspective view of a first lens assembly (or a second lens assembly) according to an embodiment, Fig.24 is a front view of a first lens assembly (or a second lens assembly) according to an embodiment, Fig.25 is a side view of a first lens assembly (or a second lens assembly) according to an embodiment, Fig.26is a rear view of the first lens assembly (or the second lens assembly) according to an embodiment, and Fig. 27 is another side view of the first lens assembly (or the second lens assembly) according to an embodiment.

[0411] Reference Fig.23 , the first lens assembly 1222a and the second lens assembly 1222a can be arranged to be spaced apart from each other in the optical axis direction (Z-axis direction). The following description will be made based on the first lens group 1222a, but the description of the first lens assembly can be applied to the second lens assembly 1222a in the same manner. In addition, the first lens assembly 1222a and the second lens assembly 1222a can be arranged side by side along the optical axis, and each guide portion can be positioned at the side facing. For example, the first lens assembly 1222a and the second lens assembly 1222a can be positioned in an inverted shape or a shape corresponding to the optical axis.

[0412] In addition, at least one of the first lens assembly 1222a and the second lens assembly 1222b may include a receiving portion (lens holder) LAH1, a guide portion GP, ​​and a lens protrusion portion LP. The following description will be made based on the first lens assembly 1222a.

[0413] The receiving portion or the first lens holder LAH1 includes a first lens hole LH1. Hereinafter, the receiving portion LAH1 will be described. In addition, a lens may be provided in the first lens hole LH1. In this case, a plurality of lenses may be provided, for example, at least one of the plurality of lenses may be formed of glass or the like.

[0414] In addition, the guide portion GP may be in contact with the receiving portion LAH1 and may be formed with a spherical portion. As described above, the spherical portion may include a first spherical member and a second spherical member. In addition, the first spherical member and the second spherical member may be positioned or seated on the first lens assembly 1222a and the guide groove. Therefore, when a driving force (e.g., an electromagnetic force) is generated by the driving portion, the first lens assembly 1222a may be moved along the optical axis direction by the rolling motion of the first spherical member and the second spherical member.

[0415] The lens protrusion portion LP may make contact with the receiving portion LAH1 and may correspond to the guide portion GP.

[0416] In an embodiment, the guide portion GP may be positioned on one side surface or one side portion of the receiving portion LAH1. In addition, the lens protrusion portion LP may be positioned on the other side surface or the other side portion of the receiving portion LAH1. For example, the guide portion GP may be positioned at a side opposite to the lens protrusion portion LP relative to the receiving portion LAH1.

[0417] In addition, the lens protrusion portion LP according to the embodiment may include a plate LP1 and a support LP2. The plate LP1 may be positioned at the front end portion of the support LP2. In addition, the support LP2 may be connected to the plate LP1 and positioned at the rear end portion of the plate LP1. Here, the front end portion is an end portion in the direction opposite to the optical axis direction, and the rear end portion is an end portion in the optical axis direction.

[0418] In addition, the height Wa of the plate LP1 may be greater than the height Wb of the support member LP2. Here, the height corresponds to the length in the first direction (X-axis direction). In addition, the thickness THb of the lens protrusion LP or the support member LP2 may be reduced along the optical axis. Here, the thickness corresponds to the length in the second direction (Y-axis direction). Furthermore, the length corresponds to the length in the third direction (Z-axis direction). Through this structure, it is possible to easily perform extraction while maintaining the supporting strength for the plate LP1. In addition, the supporting strength of the first pin groove positioned in the plate LP1 can be increased, thereby easily maintaining flatness during extraction.

[0419] In addition, the length of the plate PL1 according to the embodiment may be smaller than the length of the support LP2. Therefore, it is possible to further improve the ease of extraction and further increase the support strength.

[0420] In addition, the guide portion GP according to the embodiment may include a side plate GPa and a wing-shaped portion GPb. The wing-shaped portion GPb may be in contact with both the side plate GPa and the receiving portion LAH1. The thickness THa of the wing-shaped portion GPb may be reduced in the optical axis direction. In addition, a plurality of wing-shaped portions GPb may be provided. With this configuration, it is possible to easily perform extraction while maintaining the supporting strength for the side plate GPa. In addition, the supporting strength of the second pin groove positioned on the side plate GPa may be increased, thereby easily maintaining flatness during extraction.

[0421] In addition, a retainer RT1 may be positioned on the first outer surface MM1 of the first lens group 1222a. The first lens assembly and the second lens assembly may have retainers positioned on the outer surfaces (the first outer surface and the second outer surface) facing each other. The retainer RT1 may be coupled to the first outer surface MM1 by a protrusion / groove structure. In addition, a bonding member including epoxy resin or the like may be applied to the first outer surface MM1. Therefore, the coupling strength between the first outer surface MM1 and the retainer RT1 may be increased. The retainer RT1 may prevent the separation of the lens positioned in the first lens hole LH1. In addition, a plurality of grooves or protrusions may be formed on the first outer surface MM. In addition, a plurality of marks (e.g., grooves) may be positioned on the side surface of the first lens group 1222a along the first direction. The positions of the first lens assembly and the second lens assembly may be identified by marks and the driving of the first lens assembly and the second lens assembly may be checked using the above identification.

[0422] Reference Figure 24 to Figure 26 In an embodiment, the lens protrusion portion LP may include a first pin groove LPG provided in the upper surface LPU of the plate LP1. The first pin groove LPG may be positioned at the center of the upper surface LPU of the plate LP1. For example, the first pin groove LPG may be positioned in a portion or line that divides the upper surface LPU of the plate LP1 in the first direction (X-axis direction). In addition, the center LPM of the first pin groove LPG may be positioned on a line that divides the upper surface LPU of the plate LP1 in the first direction (X-axis direction). The shape of the first pin groove LPG may be any shape, such as a circular shape and a block shape. For example, the shape of the first pin groove LPG may correspond to the shape of a top pin.

[0423] The first pin groove LPG can overlap with the support portion LP2 in the optical axis direction or the third direction (Z axis direction). Through this configuration, even when a force is applied to the first pin groove LPG in close contact with the ejector pin for extraction, the flatness of the first lens assembly can be maintained.

[0424] In addition, the guide portion GP may include a second pin groove GPG disposed in the upper surface GPU of the guide portion GP. A plurality of second pin grooves GPG may be provided. For example, the second pin groove GPG may include a 2-1 pin groove GPG1, a 2-2 pin groove GPG2, and a 2-3 pin groove GPG3. The 2-3 pin groove GPG3 may be positioned between the 2-1 pin groove GPG1 and the 2-2 pin groove GPG2. In addition, the 2-1 pin groove GPG1, the 2-2 pin groove GPG2, and the 2-3 pin groove GPG3 may overlap each other in the first direction (X-axis direction).

[0425] In addition, the plurality of second pin grooves GPG may all have the same separation distances Wc and Wd from adjacent second pin grooves. Therefore, the force applied to the second pin grooves GPG may be uniformly applied to the guide portion, thereby suppressing bending of the guide portion.

[0426] In addition, according to an embodiment, a length Lb of the guide portion GP in the third direction may be greater than a length La of the lens protrusion portion LP in the third direction. Conversely, a length La of the lens protrusion portion LP may be less than a length Lb of the guide portion GP.

[0427] In addition, the upper surface GPU of the guide portion GP may be positioned at the front end portion of the upper surface LPU of the lens protrusion portion LP. In addition, the lower surface GPB of the guide portion GP may be disposed at the rear end portion of the lower surface LPB of the lens protrusion LP. In addition, the length of the guide portion GP in the first direction may be greater than the length of the lens protrusion portion LP in the first direction. Therefore, the guide portion GP may have a greater length than the lens protrusion portion LP in the first direction and the third direction.

[0428] Corresponding to the shapes of the guide portion GP and the lens protrusion portion LP, the number of the second pin grooves GPG may be greater than the number of the first pin grooves LPG. With this configuration, even when a force is applied to the plurality of second pin grooves GPG by a top pin, the straightness or flatness of the guide portion GP may be maintained. Therefore, the guide portion or the first lens assembly may be accurately moved in the Z-axis direction by the spherical portion positioned in the recess of the guide portion GP. That is, the zoom or AF may be moved along the optical axis, thereby suppressing the distortion of the optical axis.

[0429] In addition, at least a portion of the first pin groove LPG and at least a portion of the second pin groove GPG may overlap each other. For example, the first pin groove LPG and the second pin groove GPG may overlap each other in the second direction (Y-axis direction). For example, the 2-3 pin groove GPG3 may overlap with the first pin groove LPG in the second direction.

[0430] In addition, the first pin groove LPG may be positioned at the rear end of the second pin groove GPG. Therefore, even when force is applied to the lens protrusion portion LP and the guide portion GP, ​​bending due to a difference in shape or size may be suppressed.

[0431] In addition, the wing-shaped portion GPb may overlap with the second pin groove GPG in the optical axis direction (Z-axis direction). For example, a plurality of wing-shaped portions GPb may overlap with a plurality of second pin grooves GPG in the optical axis direction. With this configuration, even when a force is applied to the second pin groove side in close contact with the ejector pin for extraction, the flatness of the first lens assembly, in particular, the flatness of the guide portion GP in which the spherical member is disposed, can be maintained.

[0432] In addition, the centers of the plurality of second pin grooves (e.g., the centers of 2 to 3 pin grooves) and the center LPM of the first pin groove LPG may be positioned on a virtual line parallel to the second direction (Y-axis direction) or may be positioned parallel to the second direction (Y-axis direction). Therefore, it is possible to suppress the guide portion GP from being bent toward one of the upper side or the lower side by the force applied to the ejector pin during extraction.

[0433] Also refer to Fig. 27According to an embodiment, the side plate GPa of the guide portion GP includes a first area A1, a second area A2, and a third area A3.

[0434] The third area A3 is disposed between the first area A1 and the second area A2. In addition, the first area A1, the third area A3, and the second area A2 may be sequentially positioned in a direction opposite to the first direction.

[0435] The first area A1 may include a first recess RS1. In addition, the second area A2 may include a second recess RS2. A first spherical member and a second spherical member may be seated on the first recess RS1 and the second recess RS2, respectively.

[0436] In addition, a drive yoke may be provided in the third area A3. The first magnet may be seated on the drive yoke. The drive yoke may be seated on the third area A3 and connected to the guide portion GP. For example, the drive yoke may be connected to the side plate GPa. To this end, a yoke hole A3h or a connecting protrusion A3p may also be provided in the third area A3. The side plate GPa may be connected to the drive yoke through the yoke hole A3h or the connecting protrusion A3p. Additionally, a bonding member (e.g., epoxy resin) may be additionally applied to the third area A3.

[0437] Fig.28 is a cross-sectional view of a second camera actuator according to an embodiment, and Fig.29 yes Fig.28 Magnified view of portion P in FIG.

[0438] Reference Fig.28 and Fig.29 In the second camera actuator, the first yoke YK1 may be disposed adjacent to the first coil 1251a. In addition, the second yoke YK2 may be positioned adjacent to the second coil 1251b. In addition, the first yoke YK1 may be positioned adjacent to the first magnet 1252a. In addition, the second yoke YK2 may be positioned adjacent to the second magnet 1252b.

[0439] In addition, the first magnet 1252a and the second magnet may include a first pole region (N pole or S pole), a second pole region (S pole or N pole) and a neutral region NA1 or NA2. The neutral region NA1 or NA2 may be disposed between the first pole region and the second pole region. In addition, the first pole region, the neutral region and the second pole region may be sequentially arranged in the first magnet 1252a along the optical axis direction. Similarly, the first pole region, the neutral region and the second pole region may be sequentially arranged in the second magnet 1252b along the optical axis direction. In addition, in the first magnet 1252a and the second magnet 1252b, the first pole region may be an N pole. In addition, in the first magnet 1252a and the second magnet 1252b, the second magnetic pole region may be an S pole. The reverse is also true.

[0440] In an embodiment, when the first lens assembly 1222a is moved as close to the image sensor as possible or in the third direction (Z-axis direction), a minimum magnification can be provided. In addition, when the first lens assembly 1222a is moved to the maximum extent toward the first camera actuator or in the direction opposite to the third direction, a maximum magnification can be provided. At this minimum or maximum magnification, the second lens assembly can be present in any position for AF.

[0441] First, the second camera actuator may further include first stoppers ST1a and ST1b provided at one end or a front end portion and second stoppers ST2a and ST2b provided at the other end portion within the second housing (or the 2-2 housing 1232).

[0442] In addition, the first stopper includes a 1-1 stopper ST1a provided at one side thereof and a 1-2 stopper ST1b provided at the other side thereof. In addition, the second stopper may include a 2-1 stopper ST2a provided at one side and a 2-2 stopper ST2b provided at the other side. The one side and the other side may be one side and a side opposite to the one side in the second direction. The 1-1 stopper ST1a may overlap with the 2-1 stopper ST2a in the optical axis direction. The 1-2 stopper ST1b may overlap with the 2-2 stopper ST2b in the optical axis direction.

[0443] In addition, according to the driving of the first lens group, the first lens group 1222a can be positioned as close to the first stoppers ST1a and ST1b as possible. In this case, the distance dL1 between the guide portion GP and the 1-1 stopper ST1a in the first lens assembly 1222a can be smaller than the distance dL2 between the 1-2 stopper ST1b and the lens protrusion portion LP of the first lens assembly 1222A. That is, even when the first lens assembly 1222a moves maximally toward the first camera actuator, the first lens assembly 1222a can first collide with the 1-1 stopper ST1a and then collide with the 1-2 stopper ST1b. Therefore, even when a lens made of glass is provided in the first lens group 1222a (for example, the frontmost end), the collision can be minimized at the maximum movement (mechanical position) of the first lens group 1222a. That is, the crack phenomenon of the lens can be suppressed. In addition, shock absorption can mainly occur in the guide portion having a large volume, thereby minimizing damage to the first lens assembly.

[0444] Similarly, a distance dL3 between the 2-2 stopper ST2b and the guide portion GP of the second lens assembly 1222b may be smaller than a distance dL4 between the 2-1 stopper ST2a and the guide portion LP of the second lens assembly 1222b.

[0445] That is, even when the second lens assembly 1222b moves to the maximum extent toward the image sensor or in the optical axis direction, the second lens assembly 1222b may first collide with the 2-2 stopper ST2b and then collide with the 2-1 stopper ST2a. Therefore, even when a lens made of glass is provided in the second lens assembly 1222b, the collision may be minimized at the maximum movement (mechanical position) of the first lens assembly 1222a. That is, the crack phenomenon of the lens may be suppressed. In addition, the shock absorption may mainly occur in the guide portion having a larger volume, thereby minimizing the damage to the second lens assembly.

[0446] Fig.30 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

[0447] like Fig.30 As shown in FIG. 1 , a mobile terminal 1500 according to an embodiment may include a camera module 1000 , a flash module 1530 , and an AF device 1510 disposed on a rear surface thereof.

[0448] The camera module 1000 may include an image capturing function and an AF function. For example, the camera module 1000 may include an AF function using an image.

[0449] The camera module 1000 processes image frames of a still image or a moving image obtained by an image sensor in a capture mode or a video call mode.

[0450] The processed image frames may be displayed on a predetermined display or stored in a memory.A camera (not shown) may also be provided on the front surface of the body of the mobile terminal.

[0451] For example, the camera module 1000 may include a first camera module 1000A and a second camera module 1000A, and the first camera module 1000A may implement an OIS function as well as an AF or zoom function.

[0452] The flash module 1530 may include a light emitting device for emitting light in the flash module. The flash module 1530 may be operated by a camera operation of the mobile terminal or a user's control.

[0453] The AF device 1510 may include one of the packages of the surface light emitting laser device as the light emitting unit.

[0454] The AF device 1510 may include an AF function using laser. The AF device 1510 may be mainly used in a case where the AF function using the image of the camera module 1000 is degraded, for example, at a proximity of 10 m or less or in a dark environment.

[0455] The AF device 1510 may include a light emitting unit including a vertical cavity surface emitting laser (VCSEL) semiconductor device and a light receiving unit such as a photodiode, the light emitting unit including a vertical cavity surface emitting laser (VCSEL) semiconductor device, and the light receiving unit for converting light energy into electric energy.

[0456] Fig.31 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

[0457] For example, Fig.31 is an external view of a vehicle including a vehicle driving assistance device to which the camera module 1000 according to the embodiment is applied.

[0458] Reference Fig.31 The vehicle 700 according to the embodiment may include wheels 13FL and 13FR that are rotated by a power source and a predetermined sensor. Although the sensor may be the camera sensor 2000, the present invention is not limited thereto.

[0459] The camera sensor 2000 may be a camera sensor applied to the camera module 1000 according to the embodiment. The vehicle 700 according to the embodiment may acquire image information through the camera sensor 2000 for capturing a front image or a surrounding image, use the image information to determine a situation where a lane line is not recognized, and generate a virtual lane line when the lane line is not recognized.

[0460] For example, the camera sensor 2000 may acquire a front image by capturing a view in front of the vehicle 700, and a processor (not shown) may acquire image information by analyzing an object included in the front image.

[0461] For example, when lane lines, adjacent vehicles, obstacles to travel, and objects such as a central dividing strip corresponding to an indirect road sign, a curb, or a tree are captured in an image captured by the camera sensor 2000, the processor can detect the object and include the detected object in the image information. At this time, the processor can further supplement the image information by acquiring distance information to the object detected by the camera sensor 2000.

[0462] 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.

[0463] The camera sensor 2000 may process a still image or a moving image obtained through an image sensor (eg, a complementary metal oxide semiconductor (CMOS) or a charge coupled device (CDD)).

[0464] The image processing module may process a static image or a moving image acquired by the image sensor to extract necessary information, and transmit the extracted information to the processor.

[0465] In this case, although the camera sensor 2000 may include a stereo camera for improving the measurement accuracy of the object and further ensuring information such as the distance between the vehicle 700 and the object, the present invention is not limited thereto.

[0466] Although each embodiment has been mainly described above, these embodiments are only illustrative and do not limit the present invention, and it is known to those skilled in the art that the present invention belongs to that various modifications and applications not illustrated above are possible without departing from the basic characteristics of each embodiment. For example, each component specifically shown in each embodiment can be implemented by modification. In addition, the differences related to these modifications and applications should be interpreted as being included within the scope of the present invention defined in the appended claims.

Claims

1. A camera actuator, comprising: case; A first lens assembly and a second lens assembly, wherein the first lens assembly and the second lens assembly move relative to the housing along an optical axis direction; a spherical portion positioned in the first lens assembly and the second lens assembly; as well as a driving portion that moves the first lens assembly and the second lens assembly, Wherein, at least one of the first lens assembly and the second lens assembly includes: a receiving portion, which receives the lens; a guide portion, which is in contact with the receiving portion and the spherical portion is positioned on the guide portion; and a lens protruding portion, which is in contact with the receiving portion and corresponds to the guide portion.

2. The camera actuator according to claim 1, wherein: The guide portion is positioned on one side surface of the receiving portion, and The lens protruding portion is positioned on the other side surface of the receiving portion.

3. The camera actuator according to claim 1, wherein: An upper surface of the guide portion is provided at a front end portion of an upper surface of the lens protruding portion.

4. The camera actuator according to claim 1, wherein: The lower surface of the guide portion is provided at a rear end portion of a lower surface of the lens protruding portion.

5. The camera actuator according to claim 1, wherein: The length of the lens protruding portion is smaller than the length of the guide portion.

6. The camera actuator according to claim 1, wherein: The lens projection includes a plate and a support connected to the plate, and The support is provided at a rear end portion of the plate.

7. The camera actuator according to claim 6, wherein: The height of the plate is greater than the height of the support.

8. The camera actuator according to claim 6, wherein: The length of the plate is less than the length of the support.

9. The camera actuator according to claim 6, wherein: The lens protrusion includes a first pin groove provided in an upper surface of the plate.

10. The camera actuator according to claim 9, wherein: The first pin groove overlaps the support member along the optical axis.

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