Camera actuator and camera device comprising the same

Abstract

Embodiments of the present invention disclose a camera actuator including a housing, a first lens assembly and a second lens assembly moving in an optical axis direction in the housing, and a driving unit for moving the first lens assembly and the second lens assembly, wherein the first lens assembly includes a first outer side surface, and the second lens assembly includes a second outer side surface facing the first outer side surface and at least partially overlapping the first outer side surface in the optical axis direction, and a joining member in contact with at least one of the first outer side surface and the second outer side surface.

Description

Technical Field

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

[0002] A camera is a device used to take photos or videos of objects and is mounted on mobile devices, drones, vehicles, etc. A camera module may have: image stabilization (IS) to correct or prevent image shake caused by user movement in order to improve image quality; autofocus to align the lens to its focal length by automatically adjusting the distance between the image sensor and the lens; and zoom functionality to capture distant objects by increasing or decreasing the magnification of distant objects using a zoom lens.

[0003] Meanwhile, as camera resolution increases, the pixel density of the image sensor increases, and therefore the pixel size decreases. As the pixel size decreases, the amount of light received in the same amount of time decreases. Therefore, due to the higher pixel density of the camera, image shake caused by camera shake due to reduced shutter speed in dark environments can occur more severely. As a representative IS technology, there is Optical Image Stabilizer (OIS) technology, which corrects motion by changing the light path.

[0004] According to typical OIS technology, camera motion can be detected using sensors such as gyroscopes, and the detected motion can be used to tilt or move the lens, or to tilt or move the camera module including the lens and image sensor. When tilting or moving the lens or the camera module including the lens and image sensor to achieve OIS, it is additionally necessary to ensure that there is space around the lens or camera module for tilting or moving.

[0005] Meanwhile, the actuator for OIS can be positioned around the lens. In this case, the actuator for OIS may include an actuator responsible for tilting about two axes (i.e., the X-axis and Y-axis perpendicular to the Z-axis, which is the optical axis).

[0006] However, due to the requirements of ultra-thin and ultra-compact camera devices, there are significant space constraints for arranging the actuators used for OIS, and it may be difficult to ensure sufficient space for tilting or moving the lens or the camera device itself, including the lens and image sensor, to implement OIS. Furthermore, when the camera has a high pixel density, it is preferable to increase the size of the lens to increase the amount of light received, and there may be limitations on increasing the lens size due to the space occupied by the actuators used for OIS.

[0007] In addition, when zoom, AF and OIS functions are all included in a camera device, there is a problem that the OIS magnet and the AF or zoom magnet are set close to each other, causing magnetic field interference. Summary of the Invention Technical issues

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

[0009] In addition, the present invention can provide a camera actuator and camera device that can easily perform optical or mechanical alignment of adjacent lens assemblies.

[0010] In addition, the present invention can provide a camera actuator and camera device with improved resistance to impacts that occur when adjacent lens assemblies move along the optical axis.

[0011] In addition, the present invention can provide a camera actuator with improved position detection accuracy in a camera actuator used to provide a long stroke.

[0012] The purpose of the implementation is not limited to this, and may also include purposes or effects that can be identified from the configurations or implementations described below. Technical solutions

[0013] A camera actuator according to an embodiment of the present invention includes: a housing; a first lens assembly and a second lens assembly, the first lens assembly and the second lens assembly being movable in the housing along an optical axis; and a drive unit configured to move the first lens assembly and the second lens assembly, wherein the first lens assembly includes a first outer surface, the second lens assembly includes a second outer surface facing the first outer surface and at least partially overlapping the first outer surface in the optical axis direction; and a coupling member contacting at least one of the first outer surface and the second outer surface.

[0014] The connecting member may include a first connecting member that contacts a first outer surface and a second connecting member that contacts a second outer surface.

[0015] The first and second connecting members may at least partially not overlap in the optical axis direction.

[0016] The first length of the first connecting member in the optical axis direction may be less than the second length of the second connecting member in the optical axis direction.

[0017] The first lens assembly may include a first lens aperture, the second lens assembly may include a second lens aperture, and the camera actuator may also include at least one lens disposed in each of the first lens aperture and the second lens aperture.

[0018] The first outer surface may include an outer region 1-1 and an outer region 1-2. The outer region 1-1 is symmetrical in a first direction perpendicular to the optical axis and has a curved outer edge. The outer region 1-2 is symmetrical in a second direction perpendicular to the first direction and has a flat outer edge.

[0019] The first minimum thickness of the outer region 1-1 can be greater than the second minimum thickness of the outer region 1-2.

[0020] The connecting components can be set in the outer area of ​​1-1.

[0021] The second outer surface may include an outer region 2-1 and an outer region 2-2. The outer region 2-1 is symmetrical in a first direction perpendicular to the optical axis and has a curved outer edge, while the outer region 2-2 is symmetrical in a second direction perpendicular to the first direction and has a flat outer edge.

[0022] The third minimum thickness of the outer region 2-1 can be greater than the fourth minimum thickness of the outer region 2-2.

[0023] The connecting component can come into contact with the outer area of ​​2-1.

[0024] The first lens assembly can move along the optical axis within a first moving distance, and the second lens assembly can move along the optical axis within a second moving distance, wherein the first moving distance can be less than the second moving distance.

[0025] The first lens assembly may include a third outer surface opposite to the first outer surface, and the third outer surface may include an outer region 3-1 and an outer region 3-2, the outer region 3-1 being symmetrical in a first direction perpendicular to the optical axis and having a curved outer edge, and the outer region 3-2 being symmetrical in a second direction perpendicular to the first direction and having a flat outer edge.

[0026] The first minimum thickness of the outer region 1-1 can be greater than the minimum thickness of the outer region 3-1.

[0027] The second lens assembly may include a fourth outer surface opposite to the second outer surface. The fourth outer surface may include: an outer region 4-1, which is symmetrical in a first direction perpendicular to the optical axis and has a curved outer edge; and an outer region 4-2, which is symmetrical in a second direction perpendicular to the first direction and has a flat outer edge. The third minimum thickness of the outer region 2-1 may be greater than the minimum thickness of the outer region 4-1.

[0028] A camera device according to an embodiment of the present invention includes a housing, a lens assembly, and a drive unit. The lens assembly includes at least one lens located in the housing. The drive unit is configured to move the lens assembly along an optical axis. The drive unit includes a drive magnet and a drive coil positioned facing each other, and a sensor unit configured to detect the magnetic force of the drive magnet. The drive coil is disposed between the drive magnet and the sensor unit.

[0029] The driving magnet may include a first polarity portion and a second polarity portion with different polarities. The sensor unit may be configured to be misaligned with the first virtual line, and the first virtual line may be the bisector of the driving magnet in the optical axis direction.

[0030] The driving magnet may also include an air gap disposed between the first polarity portion and the second polarity portion.

[0031] The drive coil may include a first region and a second region, the first region overlapping the drive magnet in the direction toward the drive magnet, and the second region being disposed above or below the drive magnet.

[0032] The sensor unit can be located in the second area.

[0033] The sensor unit may not overlap with the driving magnet in the direction from the driving magnet toward the driving coil.

[0034] The camera device may also include a first side plate and a second side plate, which are electrically connected to the drive unit and are arranged to be spaced apart from each other on the facing side surface of the housing.

[0035] The sensor unit can be disposed on the outer surface of the first side plate or the outer surface of the second side plate.

[0036] The drive coil can be disposed on the inner surface of the first side plate or the inner surface of the second side plate.

[0037] The sensor unit may also include a motherboard, which includes a tunnel magnetoresistive (TMR) sensor, is disposed at the rear end of the lens assembly, and has an image sensor.

[0038] The camera module according to the embodiment includes a housing, a lens assembly, and a drive unit. The lens assembly includes at least one lens located in the housing. The drive unit is configured to move the lens assembly along the optical axis. The drive unit includes a drive magnet and a drive coil positioned facing each other, and a sensor unit configured to detect the magnetic force of the drive magnet. The drive magnet, drive coil, and sensor unit are arranged in a direction away from the optical axis and do not overlap each other in the optical axis direction. Beneficial effects

[0039] Embodiments of the present invention can provide a camera actuator and camera device suitable for ultra-thin, ultra-compact, and high-resolution cameras.

[0040] In particular, an actuator for optical image stabilization (OIS) can be effectively set up even without increasing the overall size of the camera device.

[0041] According to an embodiment of the present invention, X-axis tilt and Y-axis tilt do not cause magnetic field interference, X-axis tilt and Y-axis tilt can be implemented with a stable structure, and X-axis tilt and Y-axis tilt do not cause magnetic field interference with the autofocus (AF) or zoom actuator, thereby achieving accurate OIS function.

[0042] According to embodiments of the present invention, sufficient light can be ensured by overcoming the size limitations of the lens, and OIS can be achieved with low power consumption.

[0043] Alternatively, a camera actuator with improved position detection accuracy can be implemented in a camera actuator used to provide a long stroke.

[0044] The purpose of the implementation is not limited to this, and may also include purposes or effects that can be identified from the configurations or implementations described below. Attached Figure Description

[0045] Figure 1 This is a perspective view of the camera device according to the embodiment;

[0046] Figure 2 This is an exploded perspective view of the camera device according to the embodiment;

[0047] Figure 3 It is along Figure 1 A cross-sectional view of line A-A' in the diagram;

[0048] Figure 4 This is an exploded perspective view of the first camera actuator according to the embodiment;

[0049] Figure 5 This is a perspective view of a first camera actuator according to an embodiment, with the first shield and plate removed.

[0050] Figure 6 It is along Figure 5 A cross-sectional view of line B-B' in the diagram;

[0051] Figure 7 It is along Figure 5 A cross-sectional view of line C-C' in the diagram;

[0052] Figure 8 This is a perspective view of the second camera actuator according to the embodiment;

[0053] Figure 9 This is an exploded perspective view of the second camera actuator according to the embodiment;

[0054] Figure 10 It is along Figure 8 A cross-sectional view of line D-D' in the diagram;

[0055] Figure 11 and Figure 12 This is a view used to describe the drive of each lens assembly according to the implementation method.

[0056] Figure 13 This is a view showing the driving of the second camera actuator according to an embodiment.

[0057] Figure 14 This is a schematic diagram showing a circuit board according to an embodiment.

[0058] Figure 15 This is a perspective view of the first lens assembly, the first connecting member, the second connecting member, and the second lens assembly according to the embodiment.

[0059] Figure 16 This is a view showing the alignment performed by connecting the first lens assembly and the second lens assembly via a connecting member that was previously separated.

[0060] Figure 17 Is Figure 16 A perspective view of the first lens assembly, the first connecting member, the second connecting member, and the second lens assembly according to the embodiment after the connecting members are separated.

[0061] Figure 18 This is a view showing the first outer surface of the first lens assembly according to an embodiment.

[0062] Figure 19 This is a view showing the second outer surface of the second lens assembly according to an embodiment.

[0063] Figure 20 This is a view showing the third outer surface of the first lens assembly according to an embodiment.

[0064] Figure 21 This is a view showing the fourth outer surface of the second lens assembly according to an embodiment.

[0065] Figure 22 This is a perspective view of a first lens assembly, a first connecting member, and a second lens assembly according to another embodiment.

[0066] Figure 23 This is a view showing the first outer surface of a first lens assembly according to another embodiment.

[0067] Figure 24 This is a view showing the second outer surface of the second lens assembly according to another embodiment.

[0068] Figure 25 This is a perspective view of a first lens assembly, a second connecting member, and a second lens assembly according to yet another embodiment.

[0069] Figure 26 This is a view showing the first outer surface of the first lens assembly according to yet another embodiment.

[0070] Figure 27 This is a view showing the second outer surface of the second lens assembly according to yet another embodiment.

[0071] Figure 28 This is a perspective view of the first side plate, fourth coil, fourth magnet, first sensor, first lens assembly, and third lens group in the second camera actuator according to the embodiment.

[0072] Figure 29 This is a top view of the first side plate, fourth coil, fourth magnet, first sensor, first lens assembly, and third lens group in the second camera actuator according to the embodiment.

[0073] Figure 30 This is a side view of the fourth magnet, fourth coil, and first sensor in the second camera actuator according to an embodiment.

[0074] Figure 31 It is a view used to describe the positional relationship between the fourth magnet, the fourth coil and the first sensor driven in the second camera actuator according to the embodiment.

[0075] Figure 32 This is a view showing the driving of a first sensor that overlaps with a second region in a second direction in a second camera actuator according to an embodiment.

[0076] Figure 33 This is a view showing the driving of a first sensor that overlaps with the first region in a second direction in a second camera actuator according to an embodiment.

[0077] Figure 34 This is a perspective view of a mobile terminal to which the camera device according to the embodiment is applied.

[0078] Figure 35 This is a perspective view of the vehicle to which the camera device according to the embodiment is applied. Detailed Implementation

[0079] Since the present invention can have various modifications and implementations, specific embodiments are illustrated and described in the accompanying drawings.

[0080] 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 alternatives included in the spirit and scope of the present invention.

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

[0082] When a component is described as "connected" or "linked" to another component, it can be understood that the component is directly connected or linked to the other component, or that other components may be disposed between the component and the other component. On the other hand, when a component is described as "directly connected" or "directly linked" to another component, it should be understood that no other components are disposed between the component and the other component.

[0083] The terminology used in this application is for descriptive purposes only and is not intended to limit the invention. Singular expressions include plural expressions unless the context clearly specifies otherwise. It should be understood in this application that terms such as “comprising” or “having” are intended to indicate the presence of features, numbers, steps, operations, components, portions, or combinations thereof described in this specification, but do not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, portions, or combinations thereof.

[0084] Unless otherwise defined, all terms used herein, including technical or scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms, such as those defined in commonly used dictionaries, shall be understood to have a meaning consistent with the meaning in the context of the relevant field, and shall not be interpreted in an ideal or overly formal sense unless expressly defined in this application.

[0085] In the following description, various embodiments will be described in detail with reference to the accompanying drawings, and regardless of the reference numerals, the same or corresponding parts will be given the same reference numerals, and repeated descriptions of the same or corresponding parts will be omitted.

[0086] Figure 1This is a perspective view of the camera device according to the embodiment. Figure 2 This is an exploded perspective view of the camera device according to the embodiment, and Figure 3 It is along Figure 1 A cross-sectional view of line A-A' in the diagram.

[0087] Reference Figure 1 and Figure 2 The camera device 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 can be used interchangeably with the "first actuator", and the second actuator 1200 can be used interchangeably with the "second actuator".

[0088] The cover CV can cover the first camera actuator 1100 and the second camera actuator 1200. The connection force between the first camera actuator 1100 and the second camera actuator 1200 can be increased by the cover CV.

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

[0090] Alternatively, the first camera actuator 1100 may be an optical image stabilizer (OIS) actuator.

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

[0092] The first camera actuator 1100 can change the optical path. In one embodiment, the first camera actuator 1100 can change the optical path of an optical component (e.g., a mirror) that passes vertically through the first camera actuator 1100. 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 placed in the mobile terminal by changing the optical path, enabling magnification, autofocus (AF), and OIS functions to be performed.

[0093] The first camera actuator 1100 can change the optical path from the first direction to the third direction. In the specification, the optical axis direction corresponds to the direction of travel of light provided to the image sensor in the third direction or the Z-axis direction.

[0094] The second camera actuator 1200 can be located at the rear end of the first camera actuator 1100. The second camera actuator 1200 can be coupled to the first camera actuator 1100. Alternatively, the mutual coupling can be performed by various methods.

[0095] Alternatively, the second camera actuator 1200 can be a zoom actuator or an AF actuator. For example, the second camera actuator 1200 can support one or more lenses and can perform AF or zoom functions by moving the lenses according to a predetermined control signal from the control unit.

[0096] Circuit board 1300 can be disposed at the rear end of the second camera actuator 1200. Circuit board 1300 can be electrically connected to the second camera actuator 1200 and the first camera actuator 1100. In addition, multiple circuit boards 1300 can be disposed.

[0097] The circuit board 1300 can be connected to the second housing of the second camera actuator 1200 and can have an image sensor. Furthermore, a base unit including a filter can be mounted on the circuit board 1300. A description of the base unit will be given below.

[0098] The camera device according to the embodiment may include one or more camera devices. For example, the multiple camera devices may include a first camera device and a second camera device.

[0099] Additionally, the first camera device may include one or more actuators. For example, the first camera device may include a first camera actuator 1100 and a second camera actuator 1200.

[0100] Additionally, a second camera device can be housed in a predetermined housing (not shown) and capable of driving an actuator (not shown) of the lens unit. The actuator can be a voice coil motor, a micro-actuator, a silicon actuator, etc., and can be applied using various methods such as electrostatic, thermal, dual piezoelectric wafer, and electrostatic force methods, but the present invention is not limited thereto. Furthermore, in the specification, the camera actuator may be referred to as "actuator," etc. Additionally, a camera device including multiple camera units can be installed in various electronic devices, such as mobile terminals.

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

[0102] Light can enter the camera device through an opening region located in the upper surface of the first camera actuator 1100. In other words, light can enter the first camera actuator 1100 along the optical axis (e.g., the X-axis direction), and the optical path can be changed in the vertical direction (e.g., the Z-axis direction) by optical components. Additionally, light can pass through the second camera actuator 1200 and can be incident on the image sensor IS located at one end of the second camera actuator 1200 (path).

[0103] In this specification, the bottom surface refers to a side portion in the first direction. Furthermore, the first direction is the X-axis direction in the accompanying drawings and can be used interchangeably with the second axial direction, etc. The second direction is the Y-axis direction in the accompanying drawings and can be used interchangeably with the first axial direction, etc. The second direction is perpendicular to the first direction. Furthermore, the third direction is the Z-axis direction in the accompanying drawings and can be used interchangeably with the third axial direction, etc. Furthermore, the third direction is perpendicular to both the first and second directions. 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 and can be tilted by the second camera actuator. A description of this will be given below. Additionally, in the following description of the second camera actuator 1200, the optical axis direction is the third direction (Z-axis direction), and the following description will be based on this.

[0104] Furthermore, with this configuration, the camera device according to the embodiment can reduce the spatial constraints on the first and second camera actuators by changing the optical path. In other words, the camera device according to the embodiment can extend the optical path while minimizing the thickness of the camera device in response to changes in the optical path. Moreover, it should be understood that the second camera actuator can provide high magnification by controlling the focal point, etc., in the extended optical path.

[0105] Furthermore, the camera device according to the embodiment can achieve OIS by controlling the optical path passing through the first camera actuator, thereby minimizing the occurrence of eccentricity or tilt and providing the best optical characteristics.

[0106] Furthermore, the second camera actuator 1200 may include an optical system and a lens driving unit. For example, at least one of a first lens assembly, a second lens assembly, a third lens assembly, and a guide pin may be provided in the second camera actuator 1200.

[0107] Additionally, the second camera actuator 1200 may include a coil and a magnet and can perform high-magnification zoom functionality.

[0108] For example, the first and second lens assemblies can be movable lenses, each moving through a coil, a magnet, and a guide pin, and the third lens assembly can be a fixed lens, but the invention is not limited thereto. For example, the third lens assembly can function as a focuser, through which light forms an image at a specific location, and the first lens assembly can function as a transducer, used to re-form the image formed by the third lens assembly as a focuser at another location. Simultaneously, because the distance to the object or the image distance varies considerably, the first lens assembly can be in a state of large magnification changes, and the first lens assembly as a transducer can play an important role in the focal length or magnification changes of the optical system. Furthermore, the imaging point of the image formed by the first lens assembly as a transducer can vary slightly depending on the location. Therefore, the second lens assembly can perform a position compensation function for the image formed by the transducer. For example, the second lens assembly can use the imaging point of the image formed by the first lens assembly as a transducer to perform the function of a compensator, used to accurately form an image at the actual location of the image sensor. For example, the first and second lens assemblies can be driven by electromagnetic forces generated by the interaction between the coil and the magnet. The above description can be applied to the lens assembly that will be described below.

[0109] Furthermore, when the OIS actuator and AF actuator or zoom actuator are configured according to embodiments of the present invention, magnetic field interference with the AF magnet or zoom magnet can be prevented when the OIS is driven. Since the first driving magnet of the first camera actuator 1100 is configured 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 can be used interchangeably with terms such as hand shake correction, optical image stabilizer, optical image correction, and shake correction.

[0110] Figure 4 This is an exploded perspective view of the first camera actuator according to the embodiment.

[0111] Reference Figure 4 According to an embodiment, the first camera actuator 1100 includes a first shield (not shown), a first housing 1120, a mover 1130, a rotation unit 1140, and a first drive unit 1150.

[0112] The mover 1130 may include a holder 1131 and an optical component 1132 seated on the holder 1131. The rotation unit 1140 includes a rotating plate 1141, a first magnetic portion 1142 having a connecting force with the rotating plate 1141, and a second magnetic portion 1143 positioned in the rotating plate 1141. In addition, the first drive unit 1150 includes a first drive magnet 1151, a first drive coil 1152, a first Hall sensor unit 1153, and a first plate unit 1154.

[0113] The first shield (not shown) may be positioned at the outermost part of the first camera actuator 1100 and positioned around the rotating unit 1140 and the first drive unit 1150, which will be described below.

[0114] The first shield (not shown) can block or reduce the influence of electromagnetic waves generated from the outside. Therefore, the number of times the rotating unit 1140 or the first drive unit 1150 fails can be reduced.

[0115] The first housing 1120 can be positioned within the first shield (not shown). Alternatively, the first housing 1120 can be positioned inside the first plate unit 1154, which will be described below. The first housing 1120 can be secured by fitting into or engaging with the first shield (not shown).

[0116] The first housing 1120 may be composed of multiple housing side portions. The first housing 1120 may include a first housing side portion 1121, a second housing side portion 1122, a third housing side portion 1123, and a fourth housing side portion 1124.

[0117] The first housing side portion 1121 and the second housing side portion 1122 may be arranged to face each other. In addition, the third housing side portion 1123 and the fourth housing side portion 1124 may be disposed between the first housing side portion 1121 and the second housing side portion 1122.

[0118] The third housing side portion 1123 may contact the first housing side portion 1121, the second housing side portion 1122, and the fourth housing side portion 1124. Additionally, the third housing side portion 1123 may be a lower portion of the first housing 1120 and may include the bottom surface of the first housing 1120.

[0119] Additionally, the first housing side portion 1121 may include a first housing hole 1121a. A first coil 1153a, which will be described below, may be positioned in this first housing hole 1121a.

[0120] Additionally, the second housing side portion 1122 may include a second housing hole 1122a. Furthermore, the second coil 1153b, which will be described below, may be positioned within the second housing hole 1122a.

[0121] The first coil 1153a and the second coil 1153b can be connected to the first plate unit 1154. In an embodiment, the first coil 1153a and the second coil 1153b can be electrically connected to the first plate unit 1154 so that current can flow through the first plate unit 1154. Current is an element of electromagnetic force, through which the first camera actuator can tilt relative to the X-axis.

[0122] Additionally, the third housing side portion 1123 may include a third housing hole 1123a. A third coil 1153c, which will be described below, can be positioned in this third housing hole 1123a. The third coil 1153c can be connected to the first plate unit 1154. Furthermore, the third coil 1153c can be electrically connected to the first plate unit 1154 so that current can flow through the first plate unit 1154. Current is an element of electromagnetic force, through which the first camera actuator can tilt relative to the Y-axis.

[0123] The fourth housing side portion 1124 may include a first housing recess 1124a. A first magnetic portion 1142, which will be described below, may be disposed in the region facing the first housing recess 1124a. Therefore, the first housing 1120 may be magnetically or otherwise connected to the rotating plate 1141.

[0124] Furthermore, according to the embodiment, the first housing groove 1124a can be positioned on the inner or outer surface of the fourth housing side portion 1124. Therefore, the first magnetic portion 1142 can also be positioned corresponding to the first housing groove 1124a.

[0125] Additionally, the first housing 1120 may include a receiving portion 1125 formed by the first housing side portion 1121 to the fourth housing side portion 1224. The mover 1130 may be positioned in the receiving portion 1125.

[0126] The mover 1130 includes a retainer 1131 and an optical component 1132 seated on the retainer 1131.

[0127] The retainer 1131 may be seated in the receiving portion 1125 of the first housing 1120. The retainer 1131 may include the outer surfaces of the first prism to the fourth prism, which correspond to the first housing side portion 1121, the second housing side portion 1122, the third housing side portion 1123, and the fourth housing side portion 1124, respectively.

[0128] A mounting groove for the second magnetic portion 1143 can be provided on the outer surface of the fourth prism facing the fourth housing side portion 1124.

[0129] Optical component 1132 may be mounted on holder 1131. For this purpose, holder 1131 may have a mounting surface, and this mounting surface may be formed by receiving grooves. Optical component 1132 may include a reflector disposed within it. However, the invention is not limited thereto. Additionally, optical component 1132 may reflect light reflected from the outside (e.g., an object) into the camera device. In other words, optical component 1132 can reduce the spatial constraints on the first and second camera actuators by altering the path of the reflected light. As described above, it should be understood that the camera device can also provide high magnification by extending the optical path while minimizing the thickness of the camera device.

[0130] The rotating unit 1140 includes a rotating plate 1141, a first magnetic part 1142 having a connecting force with the rotating plate 1141, and a second magnetic part 1143 positioned on the rotating plate 1141.

[0131] The rotating plate 1141 can be coupled to the mover 1130 and the first housing 1120. The rotating plate 1141 may include additional magnetic portions (not shown) positioned within the rotating plate 1141.

[0132] Furthermore, the rotating plate 1141 can be positioned adjacent to the optical axis. Therefore, the actuator according to the embodiment can easily change the optical path based on the tilting of the first axis and the tilting of the second axis, which will be described below.

[0133] The rotating plate 1141 may include a first protrusion and a second protrusion. The first protrusion is spaced apart from each other in a first direction (X-axis direction), and the second protrusion is spaced apart from each other in a second direction (Y-axis direction). Furthermore, the first and second protrusions may protrude in opposite directions. A description of the first and second protrusions will be given below.

[0134] Additionally, the first magnetic portion 1142 may include a plurality of yokes, and the plurality of yokes may be positioned to face each other relative to the rotating plate 1141. In an embodiment, the first magnetic portion 1142 may include a plurality of facing yokes. Furthermore, the rotating plate 1141 may be positioned between the plurality of yokes.

[0135] As described above, the first magnetic portion 1142 can be positioned within the first housing 1120. Additionally, as described above, the first magnetic portion 1142 can be seated on the inner or outer surface of the fourth housing side portion 1124. For example, the first magnetic portion 1142 can be seated in a groove formed on the outer surface of the fourth housing side portion 1124. Alternatively, the first magnetic portion 1142 can be seated in a first housing groove 1124a.

[0136] Additionally, the second magnetic portion 1143 can be positioned on the outer surface of the mover 1130, particularly the retainer 1131. With this configuration, the rotating plate 1141 can be easily connected to the first housing 1120 and the mover 1130 by the connecting force generated by the magnetic force between the second magnetic portion 1143 in the mover 1130 and the first magnetic portion 1142 in the first housing 1120. In this invention, the positions of the first magnetic portion 1142 and the second magnetic portion 1143 can be varied.

[0137] The first driving unit 1150 includes a first driving magnet 1151, a first driving coil 1152, a first Hall sensor unit 1153, and a first board unit 1154.

[0138] The first driving magnet 1151 may include a plurality of magnets. In an embodiment, the first driving magnet 1151 may include a first magnet 1151a, a second magnet 1151b, and a third magnet 1151c.

[0139] Each of the first magnet 1151a, the second magnet 1151b, and the third magnet 1151c can be positioned on the outer surface of the retainer 1131. Furthermore, the first magnet 1151a and the second magnet 1151b can be positioned facing each other. Additionally, the third magnet 1151c can be positioned on the bottom surface of the outer surface of the retainer 1131. A description of this will be given below.

[0140] The first driving coil 1152 may include multiple coils. In an embodiment, the first driving coil 1152 may include a first coil 1153a, a second coil 1153b, and a third coil 1153c.

[0141] The first coil 1153a can be positioned facing the first magnet 1151a. Therefore, the first coil 1153a can be positioned in the first housing hole 1121a of the first housing side portion 1121 as described above.

[0142] Additionally, the second coil 1153b can be positioned facing the second magnet 1151b. Therefore, the second coil 1153b can be positioned in the second housing hole 1122a of the second housing side portion 1122 as described above.

[0143] The first coil 1153a can be positioned facing the second coil 1153b. In other words, the first coil 1153a can be positioned symmetrically with respect to the second coil 1153b with respect to a first direction (X-axis direction). This can also be applied in the same way to the first magnet 1151a and the second magnet 1151b. In other words, the first magnet 1151a and the second magnet 1151b can be positioned symmetrically with respect to the first direction (X-axis direction). Furthermore, the first coil 1153a, the second coil 1153b, the first magnet 1151a, and the second magnet 1151b can be arranged to at least partially overlap in a second direction (Y-axis direction). With this configuration, X-axis tilting can be accurately performed without tilting to one side using the electromagnetic force between the first coil 1153a and the first magnet 1151a, and the electromagnetic force between the second coil 1153b and the second magnet 1151b.

[0144] The third coil 1153c can be positioned facing the third magnet 1151c. Therefore, the third coil 1153c can be positioned in the third housing hole 1123a of the third housing side portion 1123 as described above. The third coil 1153c and the third magnet 1151c generate an electromagnetic force, such that the mover 1130 and the rotating unit 1140 can perform Y-axis tilting relative to the first housing 1120.

[0145] Here, X-axis tilt refers to tilt based on the X-axis, and Y-axis tilt refers to tilt based on the Y-axis.

[0146] The first Hall sensor unit 1153 may include a plurality of Hall sensors. The term "Hall sensor" corresponds to and is used interchangeably with "sensor" as described below. In an embodiment, the first Hall sensor unit 1153 may include a first Hall sensor 1153a, a second Hall sensor 1153b, and a third Hall sensor 1153c.

[0147] The first Hall sensor 1153a can be positioned inside the first coil 1153a. The second Hall sensor 1153b can be configured to be symmetrical with respect to the first Hall sensor 1153a with respect to a first direction (X-axis direction) and a third direction (Z-axis direction). Additionally, the second Hall sensor 1153b can be positioned inside the second coil 1153b.

[0148] The first Hall sensor 1153a can detect changes in the magnetic flux inside the first coil 1153a. Additionally, the second Hall sensor 1153b can detect changes in the magnetic flux in the second coil 1153b. Therefore, the positions between the first magnet 1151a and the first Hall sensor 1153a, and between the second magnet 1151b and the second Hall sensor 1153b, can be sensed. For example, according to an embodiment, the first camera actuator can control the X-axis tilt using the first Hall sensor 1153a and the second Hall sensor 1153b.

[0149] Additionally, the third Hall sensor 1153c can be positioned inside the third coil 1153c. The third Hall sensor 1153c can detect changes in magnetic flux inside the third coil 1153c. Therefore, the position between the third magnet 1151c and the third Hall sensor 1153bc can be sensed. Therefore, the first camera actuator according to the embodiment can control the Y-axis tilt. One or more first Hall sensors to third Hall sensors can be configured.

[0150] The first board unit 1154 may be positioned on the lower portion of the first drive unit 1150. The first board unit 1154 may be electrically connected to the first drive coil 1152 and the first Hall sensor unit 1153. For example, the first board unit 1154 may be connected to the first drive coil 1152 and the first Hall sensor unit 1153 via surface mount technology (SMT). However, the present invention is not limited to this method.

[0151] The first plate unit 1154 can be positioned between the first shield (not shown) and the first housing 1120 and can be connected to the first shield and the first housing 1120. The connection method can be performed in various ways as described above. In addition, through this connection, the first drive coil 1152 and the first Hall sensor unit 1153 can be positioned within the outer surface of the first housing 1120.

[0152] The first board unit 1154 includes a circuit board having a wiring pattern that can be electrically connected, such as a rigid printed circuit board (RPCB), a flexible PCB (FPCB), and a rigid-flexible PCB (RFPCB). However, the present invention is not limited to these types.

[0153] Figure 5 This is a perspective view of a first camera actuator according to an embodiment, with the first shield and plate removed. Figure 6 It is along Figure 5 The cross-sectional view of line B-B' in the diagram, and Figure 7 It is along Figure 5 A cross-sectional view of line C-C' in the diagram.

[0154] Reference Figures 5 to 7 The first coil 1152a can be positioned on the side portion 1121 of the first housing.

[0155] Additionally, the first coil 1152a and the first magnet 1151a can be positioned facing each other. At least a portion of the first magnet 1151a can overlap with the first coil 1152a in a second direction (Y-axis direction).

[0156] Additionally, the second coil 1152b can be positioned on the side portion 1122 of the second housing. Therefore, the second coil 1152b and the second magnet 1151b can be positioned facing each other. At least a portion of the second magnet 1151b can overlap with the second coil 1152b in a second direction (Y-axis direction).

[0157] Furthermore, the first coil 1152a and the second coil 1152b can overlap in the second direction (Y-axis direction), and the first magnet 1151a and the second magnet 1151b can overlap in the second direction (Y-axis direction). With this configuration, the electromagnetic force applied to the outer surfaces of the retainer (the outer surfaces of the first retainer and the outer surfaces of the second retainer) can be positioned on a parallel axis in the second direction (Y-axis direction), thus accurately and precisely performing X-axis tilting.

[0158] Additionally, a first receiving groove (not shown) can be positioned in the outer surface of the fourth retainer. Furthermore, first protrusions PR1a and PR1b can be disposed in the first receiving groove. Therefore, when X-axis tilting is performed, the first protrusions PR1a and PR1b can be tilted reference axes (or rotation axes). Thus, the rotating plate 1141 and the mover 1130 can move in the left-right direction.

[0159] As described above, the second protrusion PR2 can be seated in a groove on the inner surface of the fourth housing side portion 1124. Furthermore, when performing Y-axis tilting, the rotating plate and the mover can rotate about the second protrusion PR2, which serves as a reference axis for Y-axis tilting.

[0160] According to the implementation method, the OIS function can be performed through the first protrusion and the second protrusion.

[0161] Reference Figure 6 It can perform Y-axis tilting. In other words, OIS can be achieved by rotation in the first direction (X-axis direction).

[0162] In one embodiment, the third magnet 1151c disposed below the retainer 1131 can form an electromagnetic force with the third coil 1152c to cause the mover 1130 to tilt or rotate in the first direction (X-axis direction).

[0163] Specifically, the rotating plate 1141 can be connected to the first housing 1120 and the mover 1130 via the first magnetic portion 1142 in the first housing 1120 and the second magnetic portion 1143 in the mover 1130. In addition, the first protrusions PR1 can be spaced apart from each other in the first direction (X-axis direction) and supported by the first housing 1120.

[0164] Additionally, the rotating plate 1141 can be rotated or tilted based on a second protrusion PR2 that protrudes toward the mover 1130 and serves as a reference axis (or axis of rotation). In other words, the rotating plate 1141 can perform Y-axis tilting based on the second protrusion PR2, which serves as a reference axis.

[0165] For example, OIS can be achieved by rotating the mover 1130 along the X-axis direction at a first angle θ1 (X1→X1a or X1b) through the first electromagnetic forces F1A and F1B between the third magnet 1151c disposed in the third seating groove and the third coil 1152c disposed on the side portion of the third plate. The first angle θ1 can be in the range of ±1° to 3°. However, the invention is not limited thereto. In the following, in the first camera actuator according to various embodiments, the electromagnetic force can move the mover by generating a force in said direction, or even if the force is generated in another direction. In other words, said direction of the electromagnetic force refers to the direction of the force generated by the magnet and the coil to move the mover.

[0166] Reference Figure 7 It can perform X-axis tilting. In other words, OIS can be achieved by rotation in a second direction (Y-axis direction).

[0167] OIS can be achieved by tilting or rotating the mover 1300 in the Y-axis direction (or tilting it in the X-axis direction).

[0168] In one embodiment, the first magnet 1151a and the second magnet 1151b disposed on the holder 1131 form an electromagnetic force with the first coil 1152a and the second coil 1152b respectively, so that the rotating plate 1141 and the mover 1130 tilt or move in the second direction (Y-axis direction).

[0169] The rotating plate 1141 can be rotated or tilted in a second direction based on the first protrusion PR1, which serves as a reference axis (or axis of rotation) (X-axis tilting can be performed).

[0170] For example, OIS can be achieved by using 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 side portions of the first and second plates, causing the mover 1130 to rotate along the Y-axis direction at a second angle θ2 (Y1→Y1a, Y1b). The second angle θ2 can be in the range of ±1° to 3°. However, the present invention is not limited thereto.

[0171] Furthermore, as described above, the electromagnetic force generated by the first magnet 1151a and the second magnet 1151b, as well as the first coil 1152a and the second coil 1152b, can act in a third direction or in the opposite direction. For example, the electromagnetic force can be generated from the left side of the mover 1130 in the third direction (Z-axis direction), and can act from the right side of the mover 1130 in the opposite direction (Z-axis direction). Therefore, the mover 1130 can rotate relative to the first direction. Alternatively, the mover 1130 can move along a second direction.

[0172] As described above, the first actuator according to the embodiment can control the rotating plate 1141 and the mover 1130 to rotate in a first direction (X-axis direction) or a second direction (Y-axis direction) by the electromagnetic force between the first drive magnet in the holder and the first drive coil disposed in the housing, thereby minimizing the occurrence of eccentricity or tilting phenomena when achieving OIS and providing the best optical characteristics. In addition, as described above, "Y-axis tilt" corresponds to rotation or tilting in the first direction (X-axis direction), and "X-axis tilt" corresponds to rotation or tilting in the second direction (Y-axis direction).

[0173] Figure 8 This is a perspective view of the second camera actuator according to the embodiment. Figure 9 This is an exploded perspective view of the second camera actuator according to the embodiment. Figure 10 It is along Figure 8 A cross-sectional view of line D-D' in the diagram. Figure 11 and Figure 12 This is a view used to describe the drive of each lens assembly according to the implementation method, and Figure 13 This is a view showing the driving of the second camera actuator according to an embodiment.

[0174] Reference Figures 8 to 10According to the embodiments, the second camera actuator 1200 may include a lens unit 1220, a second housing 1230, a second drive unit 1250, a base unit 1260, a second plate unit 1270, and a connecting member 1280. Furthermore, the second camera actuator 1200 may also include a second shield (not shown), an elastic unit (not shown), and a connecting member (not shown).

[0175] The second shield (not shown) may be positioned in a region (e.g., the outermost part) of the second camera actuator 1200 and positioned around the following components (lens unit 1220, second housing 1230, second drive unit 1250, base unit 1260, second plate unit 1270, and image sensor IS).

[0176] The second shield (not shown) can block or reduce the influence of electromagnetic waves generated from the outside. Therefore, the number of times the second drive unit 1250 fails can be reduced.

[0177] The lens unit 1220 can be positioned within a second shield (not shown). The lens unit 1220 can move along a third direction (Z-axis or optical axis). Therefore, the AF function or zoom function described above can be performed.

[0178] Additionally, the lens unit 1220 can be positioned within the second housing 1230. Therefore, at least a portion of the lens unit 1220 can move within the second housing 1230 along the optical axis or in a third direction (Z-axis direction).

[0179] Specifically, the lens unit 1220 may include a lens group 1221 and a moving component 1222.

[0180] First, the lens group 1221 may include one or more lenses. Alternatively, multiple lens groups 1221 may be provided, but the following description will focus on a single lens group.

[0181] The lens assembly 1221 can be connected to the moving assembly 1222 and can be moved along a third direction (Z-axis direction) by the electromagnetic force generated by the fourth magnet 1252a and the fifth magnet 1252b connected to the moving assembly 1222.

[0182] In an embodiment, 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 sequentially along the optical axis.

[0183] The first lens group 1221a can be connected and fixed to the housing 2-1. In other words, the first lens group 1221a can be stationary without moving along the optical axis.

[0184] The second lens group 1221b can be connected to the first lens assembly 1222a and can be moved along a third direction or the optical axis. The magnification can be adjusted by moving the first lens assembly 1222a and the second lens group 1221b.

[0185] The third lens group 1221c can be connected to the second lens assembly 1222b and can be moved along a third direction or optical axis. Focus adjustment or AF function can be performed by moving the third lens group 1221c.

[0186] However, the present invention is not limited to the number of lens groups, and a fourth lens group or the like can also be provided on the rear end of the third lens group 1221c.

[0187] The movable component 1222 may include an opening region surrounding the lens assembly 1221. The movable component 1222 and the lens assembly are used interchangeably. Furthermore, the movable component 1222 can be coupled to the lens assembly 1221 by various methods. Additionally, the movable component 1222 may include a groove in its side surface, through which it can be coupled to the fourth magnet 1252a and the fifth magnet 1252b. Connecting members or the like can be applied to the groove.

[0188] Additionally, the movable component 1222 can be connected to an elastic unit (not shown) at its upper and lower ends. Therefore, the movable component 1222 can be supported by the elastic unit (not shown) when moving along a third direction (Z-axis). In other words, when the position of the movable component 1222 is maintained, the movable component 1222 can be held in the third direction (Z-axis). The elastic unit (not shown) can be formed as a leaf spring.

[0189] The movable component 1222 can be positioned in the second housing 1230 and can include a first lens assembly 1222a and a second lens assembly 1222b.

[0190] The area where the third lens group 1221c sits in the second lens assembly 1222b can be located on the rear end of the first lens assembly 1222a. In other words, the area where the third lens group 1221c sits in the second lens assembly 1222b can be located between the area where the second lens group 1221b sits in the first lens assembly 1222a and the image sensor.

[0191] The first lens assembly 1222a and the second lens assembly 1222b may each include a first guiding unit G1 and a second guiding unit G2.

[0192] The first guiding unit G1 of the first lens assembly 1222a and the second guiding unit G2 of the second lens assembly 1222b can be positioned corresponding to each other. For example, the first guiding unit G1 and the second guiding unit G2 can be positioned opposite to each other in a third direction. In addition, the first guiding unit G1 and the second guiding unit G2 can at least partially overlap each other in a second direction (Y-axis direction).

[0193] The first guiding unit G1 and the second guiding unit G2 may include at least one groove or recess. Additionally, the first spherical member B1 or the second spherical member B2 may be seated in the groove or recess. Therefore, the first spherical member B1 or the second spherical member B2 can move along a track formed inside the first side portion 1232a of the second housing 1230 or a track formed inside the second side portion 1232b of the second housing 1230 in a third direction. Therefore, the first lens assembly 1222a and the second lens assembly 1222b can move in a third direction.

[0194] Additionally, the second driving magnet can be positioned on the outer surface of the first lens assembly 1222a and the second lens assembly 1222b. For example, the fifth magnet 1252b can be positioned on the outer surface of the second lens assembly 1222b. The fourth magnet 1252a can be positioned on the outer surface of the first lens assembly 1222a.

[0195] The second housing 1230 may be disposed between the lens unit 1220 and the second shield (not shown). Alternatively, the second housing 1230 may be disposed around the lens unit 1220.

[0196] The second housing 1230 may include housing 1231 (2-1) and housing 1232 (2-2). Housing 1231 (2-1) may be connected to the first lens group 1221a and also to the aforementioned first camera actuator. Housing 1231 (2-1) may be positioned in front of housing 1232 (2-2).

[0197] Additionally, housing 1232 (2-2) can be positioned on the rear end of housing 1231 (2-1). Lens unit 1220 can be seated inside housing 1232 (2-2).

[0198] A hole may be formed in the side portion of the second housing 1230 (or the 2-2 housing 1232). The fourth coil 1251a and the fifth coil 1251b may be disposed in this hole. The hole may be positioned to correspond to the groove of the moving assembly 1222.

[0199] In one embodiment, the second housing 1230 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 corresponding to each other. For example, the first side portion 1232a and the second side portion 1232b may be arranged symmetrically with respect to a third direction. A second drive coil 1251 may be positioned on the first side portion 1232a and the second side portion 1232b. Additionally, a second plate unit 1270 may be seated on the outer surfaces of the first side portion 1232a and the second side portion 1232b. In other words, the first plate 1271 may be positioned on the outer surface of the first side portion 1232a, and the second plate 1272 may be positioned on the outer surface of the second side portion 1232b.

[0200] The fifth magnet 1252b can be positioned to face the fifth coil 1251b. Additionally, the fourth magnet 1252a can be positioned to face the fourth coil 1251a.

[0201] The elastic unit (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. Alternatively, the first elastic member (not shown) and the second elastic member (not shown) may be formed as leaf springs as described above. Furthermore, the first elastic member (not shown) and the second elastic member (not shown) can provide elasticity for the movement of the moving assembly 1222.

[0202] The second drive unit 1250 can provide a driving force for moving the lens unit 1220 along a third direction (Z-axis). The second drive unit 1250 may include a second drive coil 1251 and a second drive magnet 1252. Furthermore, the second drive unit 1250 may include a second Hall sensor unit. The second Hall sensor unit 1253 may include at least one fourth Hall sensor 1253a and may be positioned inside or outside the second drive coil 1251.

[0203] The movable component can be moved along a third direction (Z-axis direction) by the electromagnetic force formed between the second drive coil 1251 and the second drive magnet 1252.

[0204] The second drive coil 1251 may include a fourth coil 1251a and a fifth coil 1251b. Furthermore, the fourth coil 1251a and the fifth coil 1251b may be disposed in holes formed in the side portion of the second housing 1230. Additionally, the fourth coil 1251a and the fifth coil 1251b may be electrically connected to the second board unit 1270. Therefore, the fourth coil 1251a and the fifth coil 1251b can receive current, etc., through the second board unit 1270.

[0205] The second driving magnet 1252 may include a fourth magnet 1252a and a fifth magnet 1252b. The fourth magnet 1252a and the fifth magnet 1252b may be disposed in the aforementioned groove of the moving assembly 1222 and positioned to correspond to the fourth coil 1251a and the fifth coil 1251b.

[0206] The base unit 1260 can be positioned between the lens unit 1220 and the image sensor IS. Components such as filters can be fixed to the base unit 1260. Furthermore, the base unit 1260 can be arranged to surround the image sensor. With this configuration, the image sensor can be protected from the influence of foreign substances, thereby improving the reliability of the device. However, in the following description, a description after removing the image sensor in some of the figures will be given.

[0207] Alternatively, the second camera actuator 1200 can be a zoom actuator or an AF actuator. For example, the second camera actuator can support one or more lenses and can perform AF or zoom functions by moving the lenses according to a control signal from a predetermined control unit.

[0208] Alternatively, the second camera actuator can be a fixed zoom actuator or a continuous zoom actuator. For example, the second camera actuator can provide movement for the lens group 1221.

[0209] Furthermore, the second camera actuator can be composed of multiple lens assemblies. For example, in the second camera actuator, in addition to the first lens assembly 1222a and the second lens assembly 1222b, one or more of a third lens assembly (not shown) and a guide pin (not shown) can be provided. The above description can be applied to the description of the second camera actuator. Therefore, the second camera actuator can perform a high-magnification zoom function through the second drive unit. For example, the first lens assembly 1222a and the second lens assembly 1222b can be moving lenses that move via the second drive unit and the guide pin (not shown), and the third lens assembly (not shown) can be a fixed lens, but the invention is not limited thereto. For example, the third lens assembly can perform the function of a focuser, through which light forms an image at a specific location, and the first lens assembly can perform the function of a converter, used to re-form the image formed by the third lens assembly as a focuser at another location. At the same time, because the distance to the object or the image distance varies considerably, the first lens assembly can be in a state of large magnification change, and the first lens assembly as a converter can play an important role in the focal length or magnification change of the optical system. Meanwhile, the imaging point of the image formed by the first lens assembly, which acts as a transducer, can vary slightly depending on its position. Therefore, the second lens assembly can perform a position compensation function for the image formed by the transducer. For example, the second lens assembly can use the imaging point of the image formed by the second lens assembly 1222b, which acts as a transducer, 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 figures.

[0210] The image sensor can be positioned inside or outside the second camera actuator. In one embodiment, as shown, the image sensor can be positioned outside the second camera actuator. For example, the image sensor can be positioned on a circuit board. The image sensor can receive light and convert the received light into an electrical signal. Additionally, the image sensor can have multiple pixels arranged in an array. Furthermore, the image sensor can be positioned along an optical axis.

[0211] The second plate unit 1270 can contact the side portion of the second housing. For example, the second plate unit 1270 can be positioned on the outer surface (first side surface) of the first side portion of the second housing, particularly the 2-2 housing, and the outer surface (second side surface) of the second side portion of the 2-2 housing, and can contact the first side surface and the second side surface.

[0212] A connecting member 1280 may be disposed between the first lens assembly 1222a and the second lens assembly 1222b. In an embodiment, the connecting member 1280 may be disposed between the first lens assembly 1222a and the second lens assembly 1222b, contacting at least one of the first lens assembly 1222a and the second lens assembly 1222b. For example, the connecting member 1280 may be formed as at least one of a first connecting member 1280a contacting the first lens assembly 1222a and a second connecting member 1280b contacting the second lens assembly 1222b. In this embodiment, the following description will be based on the connecting member 1280 constituted by the first connecting member 1280a and the second connecting member 1280b. Furthermore, in another embodiment or yet another embodiment below, the case where the connecting member 1280 is either the first connecting member 1280a or the second connecting member 1280b will be described.

[0213] The bonding member 1280 can be made of a material with bonding function. For example, the bonding member 1280 can be made of epoxy resin or silicone resin. Additionally, the bonding member 1280 may lose its bonding function at a predetermined temperature after curing. Therefore, after the first lens assembly 1222a and the second lens assembly 1222b are joined and lens adjustment or alignment is performed, the bonding member before separation may lose its bonding force at a predetermined temperature, and thus can be separated into the first lens assembly 1222a or the second lens assembly 1222b. In other words, when a predetermined temperature is provided before separation, the bonding member can be separated into either the first bonding member 1280a or the second bonding member 1280b. A detailed description of this will be given below.

[0214] Reference Figure 11 and Figure 12 In the camera device according to the embodiment, by generating an electromagnetic force DEM1 between the fourth magnet 1252a and the fourth coil 1251a, the first lens assembly 1222a can be moved by the first spherical member B1 along a track positioned on the inner surface of the housing in a direction parallel to the optical axis, i.e., the third direction (Z-axis direction) or in the opposite direction to the third direction.

[0215] Specifically, in the camera device according to the embodiment, the fourth magnet 1252a can be provided in the first lens assembly 1222a, for example, by a vertical unipolar magnetization method. For example, in the embodiment, both the N pole and the S pole of the fourth magnet 1252a can be positioned facing the fourth coil 1251a. Therefore, each of the N pole and the S pole of the fourth magnet 1252a can be configured to correspond to a region from which current flows from the fourth coil 1251a in the X-axis direction or in the opposite direction to the X-axis direction.

[0216] In the implementation, when a magnetic force is applied from the N pole of the fourth magnet 1252a in a direction opposite to the second direction (Y-axis direction) and the current DE1 flows at the fourth coil 1251a corresponding to the N pole in a direction opposite to the first direction (X-axis direction), the electromagnetic force DEM1 can act in the third direction (Z-axis direction) according to the interaction of electromagnetic forces (e.g., Fleming's left-hand rule).

[0217] Furthermore, in the embodiment, when a magnetic force is applied from the S pole of the fourth magnet 1252a along the second direction (Y-axis direction) and the current DE1 flows along the first direction (X-axis direction) at the fourth 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.

[0218] At this time, because the fourth coil 1251a is fixed to the side portion of the housing, the first lens assembly 1222a, on which the fourth magnet 1252a is mounted, can move in the opposite direction to the Z-axis direction via electromagnetic force DEM1, depending on the current direction. Furthermore, the direction of the electromagnetic force can vary depending on the current in the coil and the magnetic force of the magnet. Therefore, the first lens assembly 1222a can be moved along a track positioned on the inner surface of the housing via the first spherical member B1 in either the third direction or a direction parallel to the optical axis (both directions). At this time, the electromagnetic force DEM1 can be controlled to be proportional to the current DE1 applied to the fourth coil 1251a.

[0219] In the camera device according to the embodiment, the fifth magnet 1252b can be disposed in the second lens assembly 1222b, for example, by a vertical unipolar magnetization method. For example, in the embodiment, both the N pole and the S pole of the fifth magnet 1252b can be positioned facing the fifth coil 1251b. Therefore, each of the N pole and the S pole of the fifth magnet 1252b can be configured to correspond to a region from which current flows from the fifth coil 1251b in the X-axis direction or in the opposite direction to the X-axis direction.

[0220] In the implementation, when a magnetic force DM2 is applied from the N pole of the fifth magnet 1252b along the second direction (Y-axis direction) and a current DE2 flows in the fifth coil 1251b corresponding to the N pole along the first direction (X-axis direction), the electromagnetic force DEM2 can act in the third direction (Z-axis direction) according to the interaction of electromagnetic forces (e.g., Fleming's left-hand rule).

[0221] Furthermore, in the embodiment, when a magnetic force is applied from the S pole of the fifth magnet 1252b in a direction opposite to the second direction (Y-axis direction) and the current DE2 flows at the fifth coil 1251b corresponding to the S pole in a direction opposite to the first direction (X-axis direction), the electromagnetic force DEM2 can act along the Z-axis direction according to the interaction of the electromagnetic forces.

[0222] At this time, because the fifth coil 1251b is fixed to the side portion of the housing, the second lens assembly 1222b, on which the fifth magnet 1252b is mounted, can move in a direction opposite to the Z-axis direction via the electromagnetic force DEM2, depending on the current direction. For example, as described above, the direction of the electromagnetic force can vary depending on the current in the coil and the magnetic force of the magnet. Therefore, the second lens assembly 1222b can be moved in a direction parallel to the third direction (Z-axis direction) via the second spherical member B2 along a track positioned on the inner surface of the second housing. At this time, the electromagnetic force DEM2 can be controlled to be proportional to the current DE2 applied to the fifth coil 1251b.

[0223] Reference Figure 13 In the camera device according to the embodiment, the second drive unit can provide driving forces F3A, F3B, F4A, and F4B for moving the first lens assembly 1222a and the second lens assembly 1222b of the lens unit 1220 along a third direction (Z-axis direction). As described above, the second drive unit may include a second drive coil 1251 and a second drive magnet 1252. Furthermore, the lens unit 1220 can be moved along a third direction (Z-axis direction) by an electromagnetic force formed between the second drive coil 1251 and the second drive magnet 1252.

[0224] At this time, the fourth coil 1251a and the fifth coil 1251b can be disposed in holes formed in the side portions (e.g., the first and second side portions) of the second housing 1230. Additionally, the fifth coil 1251b can be electrically connected to the first board 1271. The fourth coil 1251a can be electrically connected to the second board 1272. Therefore, the fourth coil 1251a and the fifth coil 1251b can receive drive signals (e.g., current) from a drive driver on the circuit board 1300 via the second board unit 1270.

[0225] At this time, the first lens assembly 1222a, on which the fourth magnet 1252a is mounted, can move along the third direction (Z-axis direction) by the electromagnetic forces F3A and F3B between the fourth coil 1251a and the fourth magnet 1252a. In addition, the second lens group 1221b, which is mounted on the first lens assembly 1222a, can also move along the third direction.

[0226] Furthermore, the second lens assembly 1222b, on which the fifth magnet 1252b is mounted, can move along a third direction (Z-axis direction) via the electromagnetic forces F4A and F4B between the fifth coil 1251b and the fifth magnet 1252b. Additionally, the third lens group 1221c, mounted on the second lens assembly 1222b, can also move along a third direction.

[0227] 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 this embodiment, the magnification can be changed by moving the second lens group 1221b. In other words, zooming can be performed. Additionally, the focus can be adjusted by moving the third lens group 1221c. In other words, autofocus (AF) can be performed. With this configuration, the second camera actuator can be a fixed zoom actuator or a continuous zoom actuator.

[0228] Figure 14 This is a schematic diagram showing a circuit board according to an embodiment.

[0229] Reference Figure 14 As described above, the circuit board 1300 according to the embodiment may include a first circuit board unit 1310 and a second circuit board unit 1320. The first circuit board unit 1310 may be positioned below the base and connected to the base. Additionally, an image sensor IS may be disposed on the first circuit board unit 1310. Furthermore, the first circuit board unit 1310 and the image sensor IS may be electrically connected.

[0230] Additionally, the second circuit board unit 1320 can be positioned on a side portion of the base. Specifically, the second circuit board unit 1320 can be positioned on a first sidewall of the base. Therefore, the second circuit board unit 1320 can be positioned adjacent to the fourth coil, which is positioned adjacent to the first sidewall, allowing for easy electrical connection.

[0231] In addition, the circuit board 1300 may also include a fixing plate (not shown) positioned on the side surface of the circuit board 1300. Therefore, even when the circuit board 1300 is made of a flexible material, the circuit board 1300 can be coupled to the base while maintaining rigidity through the fixing plate.

[0232] The second circuit board unit 1320 of the circuit board 1300 can be positioned on the side portion of the second drive unit 1250. The circuit board 1300 can be electrically connected to the first drive unit and the second drive unit. For example, the electrical connection can be made via SMT. However, the invention is not limited to this method.

[0233] Circuit board 1300 may include circuit boards with wiring patterns that can be electrically connected, such as RPCB, FPCB, and RFPCB. However, the present invention is not limited to these types.

[0234] Additionally, circuit board 1300 can be electrically connected to another camera module in the terminal or the terminal's processor. Therefore, the camera actuator and the camera device including the aforementioned camera actuator can transmit and receive various signals within the terminal.

[0235] Figure 15 This is a perspective view of the first lens assembly, the first connecting member, the second connecting member, and the second lens assembly according to the embodiment. Figure 16 This is a view showing the alignment performed by connecting the first lens assembly and the second lens assembly via a connecting member before they are separated, and Figure 17 Is Figure 16 A perspective view of the first lens assembly, the first connecting member, the second connecting member, and the second lens assembly according to the embodiment after the connecting members are separated.

[0236] Reference Figure 16 The first lens assembly 1222a and the second lens assembly 1222b can be configured to be spaced apart from each other in the optical axis direction (Z-axis direction). Furthermore, the first lens assembly 1222a and the second lens assembly 1222b can be moved along the optical axis direction (Z-axis direction) by a second drive unit. For example, by moving the first lens assembly 1222a and the second lens assembly 1222b, autofocus or zoom functions can be performed.

[0237] Additionally, the first lens assembly 1222a may include a first lens holder LAH1, which is used to hold and connect the first guide unit G1 and the second lens group 1221b. The first lens holder LAH1 may be connected to the first guide unit G1. Furthermore, the first lens holder LAH1 may include a first lens aperture LH1 for receiving the second lens group 1221b. In other words, at least one lens may be disposed in the first lens aperture LH1. The first guide unit G1 may be disposed on one side of the first lens holder LAH1. For example, the first guide unit G1 and the first lens holder LAH1 may be arranged sequentially along a second direction (Y-axis direction).

[0238] Additionally, the second lens assembly 1222b may include a second lens holder LAH2, which is used to hold and connect the second guide unit G2 and the third lens group 1221c. The second lens holder LAH2 may be coupled to the second guide unit G2. Furthermore, the second lens holder LAH2 may include a second lens aperture LH2 for accommodating the third lens group 1221c. In other words, at least one lens may be disposed in the second lens aperture LH2.

[0239] The second guiding unit G2 can be disposed on the other side of the second lens holder LAH2. The second guiding unit G2 can be configured opposite to the first guiding unit G1. In an embodiment, the first guiding unit G1 and the second guiding unit G2 can at least partially overlap each other in a second direction (Y-axis direction). With this configuration, the spatial efficiency of the second drive unit used to move the first lens assembly and the second lens assembly in the second camera actuator can be improved, thereby facilitating the miniaturization of the second camera actuator.

[0240] In addition, the second guiding unit G2 and the second lens holder LAH2 can be arranged sequentially in a direction opposite to the second direction (Y-axis direction).

[0241] The first spherical component, the fourth magnet, etc., can be disposed in the first guiding unit G1 as described above, and the second spherical component, the fifth magnet, etc., can be disposed in the second guiding unit G2 as described above.

[0242] The aforementioned separate connecting members, namely the first connecting member 1280a and the second connecting member 1280b, can be disposed between the first lens assembly 1222a and the second lens assembly 1222b. The first connecting member 1280a can contact the first lens assembly 1222a, and the second connecting member 1280b can contact the second lens assembly 1222b.

[0243] In this embodiment, 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 M1, and the second lens assembly 1222b may include a second outer surface M2. The first outer surface M1 may be the lower surface of the first lens holder LAH1 relative to the optical axis direction (Z-axis direction). Additionally, a third outer surface M3, which will be described below, may be the upper surface of the first lens holder LAH1. Furthermore, the second outer surface M2 may be the upper surface of the second lens holder LAH2, and a fourth outer surface M4 may be the lower surface of the second lens holder LAH2.

[0244] The second outer surface M2 and the third outer surface M3 can be configured to face each other. Even when the first connecting member 1280a or the second connecting member 1280b is disposed between the second outer surface M2 and the third outer surface M3, the second outer surface M2 and the third outer surface M3 can be configured to face each other at least partially. Alternatively, the second outer surface M2 and the third outer surface M3 can be adjacent outer surfaces between the first lens assembly 1222a and the second lens assembly 1222b. Alternatively, the second outer surface M2 and the third outer surface M3 can be adjacent outer surfaces between the first lens holder LAH1 and the second lens holder LAH2.

[0245] Furthermore, the first outer surface M1 and the second outer surface M2 may at least partially overlap each other in the optical axis direction (Z-axis direction). In an embodiment, the first outer surface M1 to the fourth outer surface M4 may at least partially overlap each other in the optical axis direction (Z-axis direction).

[0246] The connecting member 1280 can contact at least one of the first outer surface M1 and the second outer surface M2. The first connecting member 1280a can contact the first outer surface M1. In one embodiment, the first connecting member 1280a can overlap with the first outer surface M1 in the optical axis direction (Z-axis direction). Additionally, the second connecting member 1280b can contact the second outer surface M2. In one embodiment, the second connecting member 1280b can overlap with the second outer surface M2 in the optical axis direction (Z-axis direction).

[0247] Furthermore, in this embodiment, the first connecting member 1280a and the second connecting member 1280b may at least partially not overlap in the optical axis direction (Z-axis direction). For example, the outer surface of the first connecting member 1280a on the first outer surface M1 and the outer surface of the second connecting member 1280b on the second outer surface M2 may correspond to each other. With this configuration, even when the first lens assembly 1222a and the second lens assembly 1222b come into contact with each other while moving in the optical axis direction (Z-axis direction), the impact can be reduced by the first connecting member 1280a and the second connecting member 1280b. In addition, the shapes of the first connecting member 1280a and the second connecting member 1280b correspond to each other, and therefore the impact can be uniformly distributed to the first connecting member 1280a and the second connecting member 1280b without concentrating on a partial area. Therefore, the reliability of the second camera actuator can be improved.

[0248] Furthermore, the first connecting member 1280a and the second connecting member 1280b may partially overlap each other in the optical axis direction (Z-axis direction). In this case, the length of the connecting member in the optical axis direction (Z-axis direction) before separation may be the sum of the lengths of the separated first connecting member 1280a and the second connecting member 1280b in the optical axis direction (Z-axis direction).

[0249] In this embodiment, the first connecting member 1280a may be disposed in a portion of the first outer surface M1, and the second connecting member 1280b may be disposed in a portion of the second outer surface M2. The area (XY plane) of the first connecting member 1280a may be smaller than the area (XY plane) of the first outer surface M1. Similarly, the area (XY plane) of the second connecting member 1280b may be smaller than the area (XY plane) of the second outer surface M2.

[0250] Reference Figure 16 and Figure 17 The connecting member 1280' before separation can be disposed between the first lens assembly 1222a and the second lens assembly 1222b, allowing the first lens assembly 1222a and the second lens assembly 1222b to be connected. In other words, the connecting member 1280' before separation can improve the connection force between the first lens assembly 1222a and the second lens assembly 1222b. Therefore, the optical or mechanical alignment error between the second lens group 1221b in the first lens assembly 1222a and the third lens group 1221c in the second lens assembly 1222b can be minimized. For example, when checking the optical alignment of the second lens group 1221b and the third lens group 1221c, the second lens group 1221b and the third lens group 1221c, which are connected between the main first lens group corresponding to the first lens group (for checking) and the main image sensor corresponding to the image sensor (for checking), are configured to allow optical checks to be easily performed. Therefore, optical checks on each of the second lens group 1221b and the third lens group 1221c can be omitted. In other words, it facilitates the inspection process. Furthermore, according to the embodiment, errors occurring during assembly between the second lens group 1221b and the third lens group 1221c can be minimized, and degradation of optical performance caused by the driving (movement along the Z-axis) of the separate second lens group 1221b and third lens group 1221c can be suppressed.

[0251] In this embodiment, the bonding member 1280' may be made of a material having the bonding function described above. Additionally, the bonding member 1280 may lose its bonding function at a predetermined temperature after curing (when the first lens assembly and the second lens assembly are joined). Therefore, after the first lens assembly 1222a and the second lens assembly 1222b are joined and lens adjustment or alignment is performed, the bonding member 1280' before separation may lose its bonding force at a predetermined temperature and may separate into the first lens assembly 1222a or the second lens assembly 1222b.

[0252] The first connecting member 1280a and the second connecting member 1280b, which separate at a predetermined temperature, may be present on the first outer surface and the second outer surface, respectively, to perform the following operation: absorbing the impact caused by the movement of the first lens assembly 1222a and the second lens assembly 1222b.

[0253] In this embodiment, the first lens assembly 1222a can move along the optical axis (Z-axis direction) within a first moving distance, and the second lens assembly 1222b can move along the optical axis (Z-axis direction) within a second moving distance. In this case, the first moving distance and the second moving distance can be different. For example, the first lens assembly performs a zoom function, the second lens assembly performs an autofocus function, and the first moving distance can be less than the second moving distance.

[0254] Furthermore, the first length L1 of the first connecting member 1280a in the optical axis direction (Z-axis direction) can be smaller than the second length L2 of the second connecting member 1280b in the optical axis direction (Z-axis direction). With this configuration, the impact on the second lens assembly with a large movement distance can be easily reduced by the second connecting member 1280b. Therefore, the reliability of the second camera actuator can be improved.

[0255] Figure 18 This is a view showing the first outer surface of the first lens assembly according to an embodiment, and Figure 19 This is a view showing the second outer surface of the second lens assembly according to an embodiment.

[0256] Reference Figure 18 and Figure 19 According to the embodiment, the first lens assembly 1222a may include a first lens holder LAH1 and a first guiding unit G1.

[0257] Additionally, the first outer surface M1, which serves as the lower surface of the first lens holder LAH1, may include an outer region M1a (1-1) and an outer region M1b (1-2). The outer region M1a (1-1) is symmetrical in the first direction (X-axis direction) and has a curved outer edge CE1, while the outer region M1b (1-2) is symmetrical in the second direction (Y-axis direction) and has a flat outer edge PE1. For example, multiple (e.g., two) outer regions M1a (1-1) may be spaced apart from each other in the second direction (Y-axis direction) and positioned adjacent to the first guiding unit G1 and the second guiding unit G2.

[0258] Additionally, multiple (e.g., two) 1-2 outer regions M1b can be configured to contact the 1-1 outer region M1a and to be spaced apart from each other in a first direction (X-axis direction).

[0259] The outer edge CE1 of outer region M1a (1-1) can have a larger curvature than the outer edge PE1 of outer region M1b (1-2). For example, the outer edge PE1 of outer region M1b (1-2) can be parallel to the second direction (Y-axis direction). Furthermore, as described above, the first direction can correspond to the X-axis direction and can be a direction perpendicular to the optical axis direction (Z-axis direction) in the figures, and the second direction can correspond to the Y-axis direction, can be perpendicular to the first direction and the optical axis direction, and can be the same as the direction from the first guiding unit toward the second guiding unit in the figures.

[0260] Furthermore, in the embodiment, the first minimum thickness D1 of the outer region M1a of 1-1 can be greater than the second minimum thickness D2 of the outer region M1b of 1-2. Therefore, the length of the second camera actuator or the camera module (or device) including the second camera actuator in the first direction (X-axis direction) can be minimized. Thus, the thickness of the camera actuator or camera module can be reduced, and the thickness of the mobile terminal can also be reduced. In other words, the thinning of the mobile terminal can be easily achieved.

[0261] Furthermore, the center of the first lens aperture LH1 of the first lens holder LAH1 can overlap with the optical axis OX. Similarly, the center of the second lens aperture LH2 of the second lens holder LAH2, which will be described below, can also overlap with the optical axis OX.

[0262] In one embodiment, the first bonding member 1280a can be disposed in both the outer region M1a (1-1) and the outer region M1b (1-2). As a modified embodiment, when the second minimum thickness D2 of the outer region M1b (1-2) is less than a predetermined length, the first bonding member 1280a can be disposed only in the outer region M1a (1-1). Therefore, it is possible to prevent the first bonding member 1280a from extending into the second lens group. Thus, it is possible to prevent degradation of optical performance.

[0263] Corresponding to the first minimum thickness D1 and the second minimum thickness D2, the thickness D1' of the first bonding member 1280a in the outer region M1a of 1-1 can be greater than the thickness D2' of the first bonding member 1280a in the outer region M1b of 1-2. This configuration prevents the bonding member from moving to the second lens group, while also increasing the bonding force through the bonding member.

[0264] For example, the first connecting member 1280a can be configured to be spaced at a predetermined distance from the outer edge CE1 or inner edge of the outer region M1a of 1-1. Additionally, the first connecting member 1280a can be configured to be spaced at a predetermined distance from the outer edge PE1 or inner edge of the outer region M1b of 1-2.

[0265] Additionally, the second outer surface M2, which serves as the upper surface of the second lens holder LAH2, may include a 2-1 outer region M2a and a 2-2 outer region M2b. The 2-1 outer region M2a is symmetrical in the first direction (X-axis direction) and has a curved outer edge CE2, while the 2-2 outer region M2b is symmetrical in the second direction (Y-axis direction) and has a flat outer edge PE2. For example, there may be multiple (e.g., two) 2-1 outer regions M2a, which are spaced apart from each other in the second direction (Y-axis direction) and positioned adjacent to the first guiding unit G1 and the second guiding unit G2.

[0266] Additionally, there may be multiple (e.g., two) 2-2 outer regions M2b, which may contact the 2-1 outer region M2a and may be spaced apart from each other in a first direction (X-axis direction).

[0267] The outer edge CE2 of outer region M2a in 2-1 can have a larger curvature than the outer edge PE2 of outer region M2b in 2-2. For example, the outer edge PE2 of outer region M2b in 2-2 can be parallel to the second direction (Y-axis direction).

[0268] Furthermore, in the embodiment, the third minimum thickness D3 of the outer region M2a of 2-1 can be greater than the fourth minimum thickness D4 of the outer region M2b of 2-2. Therefore, the length of the second camera actuator or the camera module (or device) including the second camera actuator in the first direction (X-axis direction) can be minimized. Thus, the thickness of the camera actuator or camera module can be reduced, and the thickness of the mobile terminal can also be reduced. In other words, the thinning of the mobile terminal can be easily achieved.

[0269] Furthermore, in one embodiment, the second bonding member 1280b can be disposed on both the outer region M2a (2-1) and the outer region M2b (2-2). As a modified embodiment, when the fourth minimum thickness D4 of the outer region M2b (2-2) is less than a predetermined length, the second bonding member 1280b can be disposed only in the outer region M2a (2-1). Therefore, it is possible to prevent the second bonding member 1280b from extending into the third lens group. Thus, it is possible to prevent degradation of optical performance.

[0270] Corresponding to the third minimum thickness D3 and the fourth minimum thickness D4, the thickness D3' of the second bonding member 1280b in the outer region M2a of 2-1 can be greater than the thickness D4' of the second bonding member 1280b in the outer region M2b of 2-2. This configuration prevents the bonding member from moving to the third lens group, while also increasing the bonding force through the bonding member.

[0271] For example, the second connecting member 1280b can be configured to be spaced at a predetermined distance from the outer edge CE2 or the inner edge on the outer region M2a of 2-1. Additionally, the second connecting member 1280b can be configured to be spaced at a predetermined distance from the outer edge PE2 or the inner edge on the outer region M2b of 2-2.

[0272] Furthermore, the second minimum thickness D2 can be smaller than the fourth minimum thickness D4. Therefore, the reliability of the second lens assembly with a large travel distance can be easily improved.

[0273] Figure 20 This is a view showing the third outer surface of the first lens assembly according to an embodiment, and Figure 21 This is a view showing the fourth outer surface of the second lens assembly according to an embodiment.

[0274] Reference Figure 20 and Figure 21 The first lens assembly 1222a may also include a third outer surface M3, which serves as the upper surface of the first lens holder LAH1.

[0275] Additionally, the third outer surface M3 may include a 3-1 outer region M3a and a 3-2 outer region M3b, which are symmetrical in the first direction and have curved outer corners. For example, there may be multiple (e.g., two) 3-1 outer regions M3a, spaced apart from each other in the second direction (Y-axis direction) and positioned adjacent to the first guiding unit G1 and the second guiding unit G2. Furthermore, there may be multiple (e.g., two) 3-2 outer regions M3b, which may contact the 3-1 outer region M3a and may be spaced apart from each other in the first direction (X-axis direction).

[0276] The outer edge of outer region M3a (3-1) can have a larger curvature than the outer edge of outer region M3b (3-2). For example, the outer edge of outer region M3b (3-2) can be parallel to the second direction (Y-axis direction).

[0277] The fifth minimum thickness D5 of outer region M3a (3-1) can be greater than the minimum thickness of outer region M3b (3-2). Alternatively, the fifth minimum thickness D5 can be less than the first minimum thickness mentioned above.

[0278] Additionally, the second lens assembly 1222b may also include a fourth outer surface M4, which serves as the lower surface of the second lens holder LAH2.

[0279] Additionally, the fourth outer surface M4 may include an outer region M4a (4-1) and an outer region M4b (4-2), which are symmetrical in the first direction and have curved outer corners. For example, multiple (e.g., two) outer regions M4a may exist, spaced apart from each other in the second direction (Y-axis direction) and positioned adjacent to the first guiding unit G1 and the second guiding unit G2. Furthermore, multiple (e.g., two) outer regions M4b may exist, which may contact the outer region M4a (4-1) and may be spaced apart from each other in the first direction (X-axis direction).

[0280] The outer edge of outer region M4a (4-1) can have a larger curvature than the outer edge of outer region M4b (4-2). For example, the outer edge of outer region M4b (4-2) can be parallel to the second direction (Y-axis direction).

[0281] The sixth minimum thickness D6 of outer region M4a in 4-1 can be greater than the minimum thickness of outer region M4b in 4-2. Alternatively, the sixth minimum thickness D6 can be less than the third minimum thickness mentioned above.

[0282] With this configuration, the following space can be easily ensured: in this space, the connecting member is disposed between the first lens assembly and the second lens assembly, on the first outer surface and the second outer surface.

[0283] Furthermore, the area (e.g., diameter) of the first lens aperture in the first lens assembly 1222a can be increased in the third direction (Z-axis direction). For example, the area of ​​the first lens aperture on the first outer surface of the first lens assembly 1222a can be smaller than the area of ​​the first lens aperture on the third outer surface. Therefore, lenses (e.g., two lenses) of the second lens group can be easily inserted along the third direction (Z-axis direction).

[0284] Furthermore, the area (e.g., diameter) of the second lens aperture in the second lens assembly 1222b can be increased in a direction opposite to the third direction (Z-axis direction). For example, the area of ​​the second lens aperture on the second outer surface of the second lens assembly 1222b can be smaller than the area of ​​the second lens aperture on the fourth outer surface. Therefore, lenses (e.g., two lenses) of the third lens group can be easily inserted in a direction opposite to the third direction (Z-axis direction).

[0285] Furthermore, since the area of ​​the lens apertures of the first lens assembly 1222a and the second lens assembly 1222b increases in opposite directions, the lenses can also be inserted in opposite directions. For example, the second lens group can be easily inserted along the optical axis and accommodated in the first lens aperture of the first lens holder LAH1. Similarly, the third lens group can be easily inserted in the opposite direction to the optical axis and accommodated in the second lens aperture of the second lens holder LAH2. In other words, the second and third lens groups are inserted in opposite directions, and the assembly of the first and second lens assemblies, as well as the second and third lens groups, can be easily performed after the first and second lens assemblies are joined.

[0286] Figure 22 This is a perspective view of a first lens assembly, a first connecting member, and a second lens assembly according to another embodiment. Figure 23 This is a view showing the first outer surface of the first lens assembly according to another embodiment, and Figure 24 This is a view showing the second outer surface of the second lens assembly according to another embodiment.

[0287] Reference Figures 22 to 24 In a second camera actuator according to another embodiment, a first coupling member 1280a may be disposed in the first lens assembly 1222a. The coupling member may not be disposed in the second lens assembly 1222b. Except as described below, the above description can be applied in the same manner to the description of the components of the second camera actuator, such as the first lens assembly, the second lens assembly, and the coupling member.

[0288] According to another embodiment, the first outer surface M1 of the first lens assembly 1222a may include an outer region M1a (1-1) and an outer region M1b (1-2), the outer region M1a (1-1) being symmetrical in a first direction (X-axis direction) and having a curved outer edge CE1, and the outer region M1b (1-2) being symmetrical in a second direction (Y-axis direction) and having a flat outer edge PE1.

[0289] Additionally, the second outer surface M2, which serves as the upper surface of the second lens holder LAH2, may include a 2-1 outer region M2a and a 2-2 outer region M2b. The 2-1 outer region M2a is symmetrical in the first direction (X-axis direction) and has a curved outer edge CE2, while the 2-2 outer region M2b is symmetrical in the second direction (Y-axis direction) and has a flat outer edge PE2. For example, there may be multiple (e.g., two) 2-1 outer regions M2a, which are spaced apart from each other in the second direction (Y-axis direction) and positioned adjacent to the first guiding unit G1 and the second guiding unit G2.

[0290] Additionally, there may be multiple (e.g., two) 2-2 outer regions M2b, which may contact the 2-1 outer region M2a and may be spaced apart from each other in a first direction (X-axis direction).

[0291] The outer edge CE2 of outer region M2a in 2-1 can have a larger curvature than the outer edge PE2 of outer region M2b in 2-2. For example, the outer edge PE2 of outer region M2b in 2-2 can be parallel to the second direction (Y-axis direction).

[0292] In one embodiment, the first connecting member 1280a may be disposed in both the outer region M1a (1-1) and the outer region M1b (1-2). Alternatively, the first connecting member 1280a may be disposed only in the outer region M1a (1-1). Furthermore, the second connecting member may not be located in the outer region (1-2).

[0293] Furthermore, in this embodiment, the connecting member may contact only the first outer surface M1. Therefore, the connecting member is separated by heating so that it contacts only the first outer surface M1, and a portion of the connecting member separates so that it does not contact the second outer surface M2, thus the impact can be completely dispersed throughout the connecting member. As described above, the impact reliability of the second camera actuator can be improved by using the connecting member.

[0294] Figure 25 This is a perspective view of a first lens assembly, a second connecting member, and a second lens assembly according to yet another embodiment. Figure 26 This is a view showing the first outer surface of the first lens assembly according to yet another embodiment, and Figure 27 This is a view showing the second outer surface of the second lens assembly according to yet another embodiment.

[0295] Reference Figures 25 to 27 In a second camera actuator according to yet another embodiment, the second coupling member 1280b may be disposed in the second lens assembly 1222b. The coupling member may not be disposed in the first lens assembly 1222a. Except as described below, the above description can be applied in the same manner to the description of the components of the second camera actuator, such as the first lens assembly, the second lens assembly, and the coupling member.

[0296] According to another embodiment, the first outer surface M1 of the first lens holder LAH1 may include an outer region M1a (1-1) and an outer region M1b (1-2), the outer region M1a (1-1) being symmetrical in a first direction (X-axis direction) and having a curved outer edge CE1, and the outer region M1b (1-2) being symmetrical in a second direction (Y-axis direction) and having a flat outer edge PE1.

[0297] Additionally, the second outer surface M2, which serves as the upper surface of the second lens holder LAH2, may include a 2-1 outer region M2a and a 2-2 outer region M2b. The 2-1 outer region M2a is symmetrical in the first direction (X-axis direction) and has a curved outer edge CE2, while the 2-2 outer region M2b is symmetrical in the second direction (Y-axis direction) and has a flat outer edge PE2. For example, there may be multiple (e.g., two) 2-1 outer regions M2a, which are spaced apart from each other in the second direction (Y-axis direction) and positioned adjacent to the first guiding unit G1 and the second guiding unit G2.

[0298] Additionally, there may be multiple (e.g., two) 2-2 outer regions M2b, which may contact the 2-1 outer region M2a and may be spaced apart from each other in a first direction (X-axis direction).

[0299] The outer edge CE2 of outer region M2a in 2-1 can have a larger curvature than the outer edge PE2 of outer region M2b in 2-2. For example, the outer edge PE2 of outer region M2b in 2-2 can be parallel to the second direction (Y-axis direction).

[0300] In one embodiment, the second connecting member 1280b may be disposed in both the outer region M2a (2-1) and the outer region M2b (2-2). Alternatively, the second connecting member 1280b may be disposed only in the outer region M2a (2-1). Furthermore, the second connecting member may not be positioned in the outer region (1-2).

[0301] Furthermore, in this embodiment, the connecting member may only contact the second outer surface M2. Therefore, the connecting member is separated by heating to contact only the second outer surface M2, and a portion of the connecting member separates to not contact the first outer surface M1, thus the impact can be completely dispersed throughout the connecting member. Therefore, impacts on the second lens assembly, which is connected to the third lens group and has a greater travel distance, can be easily absorbed. As described above, the impact reliability of the second camera actuator can be improved by using the connecting member.

[0302] Figure 28 This is a perspective view of the first side plate, fourth coil, fourth magnet, first sensor, first lens assembly, and third lens group in the second camera actuator according to the embodiment. Figure 29 This is a top view of the first side plate, fourth coil, fourth magnet, first sensor, first lens assembly, and third lens group in the second camera actuator according to the embodiment. Figure 30 This is a side view of the fourth magnet, fourth coil, and first sensor in the second camera actuator according to an embodiment.

[0303] Reference Figures 28 to 30In the second camera actuator according to the embodiment, the first side plate 1271 can be positioned at the outer side. Furthermore, the following description will be given based on the fact that the sensor unit of the second camera actuator is a first sensor, the driving magnet is a fourth magnet (or a first magnet or a first magnet of the second camera actuator), the driving coil is a fourth coil (or a first coil or a first coil of the second camera actuator), the second plate unit is a first side plate, and the lens assembly is a first lens assembly.

[0304] In one embodiment, the sensor unit may be disposed on the outer surface of the first side plate 1271 or the outer surface of the second side plate, and the drive coil may be disposed on the inner surface of the first side plate 1271 or the inner surface of the second side plate.

[0305] Specifically, the driving magnet, driving coil, and sensor unit are arranged in a direction away from the optical axis and may not overlap each other in the optical axis direction or a third direction. The first sensor 1253a may be positioned on the outer surface of the first side plate 1271. Additionally, the fourth coil 1252a may be positioned on the inner surface of the first side plate 1271. In other words, the first side plate 1271 may be positioned between the first sensor 1253a and the fourth coil 1252a. With this configuration, the sensor unit can easily maintain sensitivity to the magnetic force received from the driving magnet and driving coil and can accurately detect the linearity of the output through the sensor unit. Furthermore, when the sensor unit is adjacent to the driving magnet, a decrease in linearity caused by large changes in the movement (or stroke) of the sensor unit can be prevented.

[0306] Additionally, the fourth magnet 1251a can be positioned facing the fourth coil 1252a. For example, at least a portion of the fourth magnet 1251a can be positioned to overlap with the fourth coil 1252a in the second direction (Y-axis direction).

[0307] Additionally, the fourth magnet 1251a can be mounted on the side surface of the first lens assembly 1222a as described above. Furthermore, the third lens group 1221c can be connected to the first lens assembly 1222a to move along a third direction (Z-axis).

[0308] In one embodiment, the fourth coil 1252a can be positioned between the fourth magnet 1251a and the first sensor 1253a. In other words, the first sensor 1253a can be positioned outside the fourth coil 1252a and the fourth magnet 1251a.

[0309] Additionally, the fourth coil 1252a may have a first spacing distance W3 between it and the fourth magnet 1251a in the second direction (Y-axis direction). The ratio of the first spacing distance W3 to the width W1 of the fourth magnet 1251a in the second direction (Y-axis direction) may be between 1:0.3 and 1:0.45. When this ratio is less than 1:0.3, the size of the second camera actuator increases, making miniaturization difficult, and when this ratio is greater than 1:0.45, there is a problem of the magnetic force exceeding the range that can be detected by the first sensor.

[0310] In addition, the width W2 of the fourth coil 1252a in the second direction (Y-axis direction) can be greater than the width W1 of the fourth magnet 1251a in the second direction (Y-axis direction).

[0311] Furthermore, in the second camera actuator according to the embodiment, the first lens assembly 1222a, the third lens group 1221c, and the fourth magnet 1251a can be moved integrally along a third direction (Z-axis direction).

[0312] First, the fourth magnet 1251a may include a first polarity portion 1251aa, a second polarity portion 1251ab having a different polarity from the first polarity portion 1251aa, and an air gap 1251ac positioned between the first polarity portion 1251aa and the second polarity portion 1251ab.

[0313] For example, the first polarity portion 1251aa, the air gap 1251ac, and the second polarity portion 1251ab can be sequentially arranged along a third direction (Z-axis direction).

[0314] In addition, the first polarity portion 1251aa can be either the N pole or the S pole, and the second polarity portion 1251ab can be the other one of the N pole and the S pole.

[0315] Furthermore, in this embodiment, since the fourth magnet 1251a has an air gap 1251ac, the output from the first sensor 1253a based on the movement of the fourth magnet 1251a can be a linear output. In other words, changes in magnetic force can occur linearly through the air gap 1251ac based on the positional relationship between the sensor unit (e.g., the first sensor) and the driving magnet (e.g., the first magnet). For example, the first sensor 1253a can output the magnetic force from the fourth magnet 1251a as a voltage output, and these will be described.

[0316] Furthermore, at least a portion of the fourth coil 1252a of the second camera actuator 1200 may overlap with the fourth magnet 1251a of the second camera actuator 1200 in the second direction (Y-axis direction). For example, regarding the center position (zero stroke), the fourth coil 1252a may include first regions SS1a and SS1b that overlap with the fourth magnet 1251a in the second direction (Y-axis direction) and second regions SS2a and SS2b that do not overlap with the fourth magnet 1251a in the second direction (Y-axis direction). In other words, the second regions SS2a and SS2b may be regions other than the first regions SS1a and SS1b. Additionally, in the specification, the center position (zero stroke) refers to the bisector of the movable distance of the fourth magnet 1251a. In the second camera actuator according to the embodiment, the lens assembly can move from the rear end to the front end of the second camera actuator, or from the front end to the rear end of the second camera actuator. Therefore, it should be understood that zero stroke does not mean only the starting position of the movement of the lens assembly.

[0317] Additionally, the first regions SS1a and SS1b can be regions where the drive coil and the drive magnet overlap each other in the direction from the drive magnet to the drive coil or in the opposite direction. The second regions SS2a and SS2b can be regions where the drive coil is disposed above or below the drive magnet.

[0318] The first regions SS1a and SS1b may include region 1-1 SS1a and region 1-2 SS1b. Region 1-1 SS1a may be the region of the first region located above the first virtual line Va, and region 1-2 SS1b may be the region of the first region located below the first virtual line Va. The first virtual line Va may be the bisector of the fourth magnet 1251a in the first direction (X-axis direction). Additionally, the second virtual line Vb, as described below, may be the bisector of the fourth magnet 1251a in the third direction (Z-axis direction). Alternatively, the first virtual line Va may be the bisector of the short side La of the fourth magnet 1251a, and the second virtual line Vb may be the bisector of the long side Wa of the fourth magnet 1251a. Furthermore, the first virtual line Va may be the bisector of the fourth magnet 1251a driving the magnet in the optical axis direction or in the third direction.

[0319] Additionally, the second regions SS2a and SS2b may include region 2-1 SS2a and region 2-2 SS2b. Region 2-1 SS2a is located below region 1-1 SS1a and may not overlap with the fourth magnet 1251a in the second direction (Y-axis direction). Similarly, region 2-2 SS2b is located above region 1-2 SS1b and may not overlap with the fourth magnet 1251a in the second direction (Y-axis direction).

[0320] In one implementation, only the first region where the fourth coil 1252a overlaps with the fourth magnet 1251a in the second direction (Y-axis direction) can be changed.

[0321] Alternatively, the first sensor 1253a can be positioned within the air gap 1251ac, or positioned below / above the air gap 1251ac at the center position (zero stroke). In other words, the first sensor 1253a can be positioned in the region between the first polarity portion 1251aa and the second polarity portion 1250ab. Alternatively, the first sensor 1253a can be configured to be spaced apart from the first virtual line Va. Alternatively, the first sensor 1253a can be positioned in the 1-1 region SS1a or the 1-2 region SS1b. With this configuration, the first sensor 1253a can receive magnetic force to a minimum at the center position. Therefore, the first sensor 1253a can have high linearity performance under different polarities, i.e., it has the same height relative to the center position, relative to the entire movement or the entire stroke of the fourth magnet 1251a.

[0322] In other words, according to the embodiment, the first sensor 1253a can be positioned above / below the first virtual line Va, or above / below the center of the fourth magnet 1251a. In other words, the sensor unit can be non-overlapping with the driving magnet in the second direction. This configuration solves the problem of the sensing sensitivity of the first sensor 1253a exceeding that under strong magnetic force. Furthermore, it solves the problem of difficulty in detecting changes in the magnetic force generated by the fourth magnet 1251a due to small variations.

[0323] Furthermore, the spacing distance dd1 between the first sensor 1253a and the first virtual line Va according to the embodiment can be changed. Additionally, the first sensor 1253a according to the embodiment can be positioned to overlap with either region 2-1 SS2a or region 2-2 SS2b in the second direction (Y-axis direction). With this configuration, the magnetic force generated from the first regions SS1a and SS1b can be minimized, preparing for the placement of the first sensor 1253a within the first regions SS1a and SS1b. Therefore, the performance of the first sensor can be improved.

[0324] According to the embodiment, the ratio of the spacing distance dd1 to the length Lb of the first coil in the first direction (X-axis direction) can be from 1:2.04 to 1:3.7. When this ratio is less than 1:2.04, the accuracy of the first sensor may be reduced due to the influence of the magnetic force generated from the first coil and the magnetic force of the first magnet. In addition, when this ratio is greater than 1:3.7, there are problems such as the magnetic force from the first coil and the first magnet not being significant and difficulty in miniaturization.

[0325] Furthermore, the above descriptions of the first side plate 1271, the fourth coil 1252a, the fourth magnet 1251a, the first sensor 1253a, the first lens assembly 1222a, and the third lens group 1221c can be applied in the same manner to the second side plate, the fifth coil (or the second coil or the second coil of the second camera actuator), the fifth magnet (or the second magnet or the second magnet of the second camera actuator), the second sensor, the second lens assembly, and the second lens group.

[0326] Figure 31 This is a view used to illustrate the positional relationship between the fourth magnet, the fourth coil, and the first sensor, driven according to the second camera actuator according to the embodiment. Figure 32 This is a view showing the driving of a first sensor that overlaps with a second region in a second direction in a second camera actuator according to an embodiment, and Figure 33 This is a view showing the driving of a first sensor that overlaps with the first region in a second direction in a second camera actuator according to an embodiment.

[0327] As described above, the fourth magnet 1251a can move together with the first lens assembly 1222a and the third lens group 1221c along a third direction (Z-axis). For example, Figure 31 (a) in the diagram shows the broad state. Figure 31 (c) in the diagram shows the telephoto state, and Figure 31 (b) shows the state of the center position.

[0328] In addition, the first region of the fourth coil 1252a may overlap with the fourth magnet 1251a in the second direction (Y-axis direction), and the magnetic force received from the fourth magnet 1252a may be different as the fourth magnet 1251a moves in the third direction (Z-axis direction).

[0329] For example, in the wide-angle configuration, the first sensor 1253a can be positioned adjacent to the first polarity portion 1251aa. For example, the first sensor 1253a can be positioned below the first polarity portion 1251aa.

[0330] Furthermore, in telephoto mode, the first sensor 1253a can be positioned adjacent to the second polarity portion 1251ab. For example, the first sensor 1253a can be positioned below the second polarity portion 1251ab.

[0331] Additionally, in the central position, the first sensor 1253a can be positioned adjacent to the air gap 1251ac. For example, the first sensor 1253a can be positioned below the air gap 1251ac.

[0332] Furthermore, the first sensor 1253a can be positioned in the second region of the fourth coil 1252a. When the first sensor 1253a is positioned in the first region, it can receive the magnetic force generated in the first region of the fourth coil 1252a. Conversely, when the first sensor 1253a is positioned in the second region, it can minimize the influence of the magnetic force generated in the first region of the fourth coil 1252a. Therefore, the magnetic force can be detected more accurately by the first sensor 1253a.

[0333] Furthermore, the first sensor 1253a can be positioned in the second region to minimize the influence of the magnetic force generated in region 2-1 and the magnetic force generated in region 2-2. Therefore, the first sensor 1253a can linearly detect the magnetic force based on the position of the fourth magnet 1251a (see [reference]). Figure 32 and Figure 33 ).

[0334] The position of the first sensor 1253a can also be applied in the same manner to a second camera actuator having the first and second lens assemblies described above according to one embodiment, another embodiment, and yet another embodiment. Therefore, not only can a long stroke be achieved, thereby improving the reliability between the first and second lens assemblies, but the accuracy in achieving the long stroke can also be improved, thereby further preventing damage due to collisions.

[0335] Figure 34 This is a perspective view of a mobile terminal to which the camera device according to the embodiment is applied.

[0336] Reference Figure 34 According to the embodiments, the mobile terminal 1500 may include a camera device 1000, a flash module 1530 and an AF device 1510 disposed on its rear surface.

[0337] The camera device 1000 may include image capture and autofocus (AF) functions. For example, the camera device 1000 may include an autofocus function that uses an image.

[0338] The camera device 1000 processes image frames of still or moving images obtained by the image sensor in capture mode or video call mode.

[0339] The processed image frames can be displayed on a predetermined display or stored in memory. A camera (not shown) can also be mounted on the front surface of the mobile terminal body.

[0340] For example, camera device 1000 may include a first camera device 1000A and a second camera device 1000B, and the first camera device 1000A may enable OIS functionality together with AF or zoom functionality. Alternatively, AF, zoom, and OIS functions may be performed by the second camera device 1000B. In this case, since the first camera device 1000A includes both a first camera actuator and a second camera actuator, the camera device can be easily miniaturized by changing the optical path.

[0341] The flash module 1530 may include a light emitting device for emitting light therein. The flash module 1530 can be operated via camera operation of a mobile terminal or by user control.

[0342] The AF device 1510 may include one of the packages in the package of a surface-emitting laser device that serves as a light-emitting unit.

[0343] AF device 1510 may include AF function using a laser. AF device 1510 may be used primarily in situations where the AF function of the image using camera device 1000 degrades, for example, at close range of 10 m or less or in dark environments.

[0344] The AF device 1510 may include an optical emitting unit and an optical receiving unit, such as a photodiode. The optical emitting unit includes a vertical cavity surface emitting laser (VCSEL) semiconductor device, and the optical receiving unit is used to convert light energy into electrical energy.

[0345] Figure 35 This is a perspective view of the vehicle to which the camera module is applied according to the implementation method.

[0346] For example, Figure 35 It is an external view of a vehicle including a vehicle driver assistance device, wherein a camera device 1000 according to an embodiment is applied to the vehicle driver assistance device.

[0347] Reference Figure 35 The vehicle 700 in the embodiment may include wheels 13FL and 13FR that rotate via a power source and predetermined sensors. The sensors may be camera sensors 2000, but the invention is not limited thereto.

[0348] The camera sensor 2000 may be the camera sensor used in the camera device 1000 according to the embodiment. The vehicle 700 in the embodiment can acquire image information by using the camera sensor 2000 for capturing images of the front or surroundings, and can use the image information to determine if lane lines are not recognized and generate virtual lane lines when lane lines are not recognized.

[0349] For example, camera sensor 2000 can acquire a frontal image by capturing a view in front of vehicle 700, and processor (not shown) can acquire image information by analyzing objects included in the frontal image.

[0350] For example, when objects such as center lines, curbs, or roadside trees corresponding to lane lines, adjacent vehicles, driving obstacles, and indirect road signs are captured in an image captured by the camera sensor 2000, the processor can detect the objects and include them in the image information. At this time, the processor can further supplement the image information by acquiring distance information of the objects detected by the camera sensor 2000.

[0351] Image information can be information about objects captured in an image. The camera sensor 2000 may include an image sensor and an image processing module.

[0352] The camera sensor 2000 can process still or moving images obtained by an image sensor (e.g., complementary metal-oxide-semiconductor (CMOS) or charge-coupled device (CDD)).

[0353] The image processing module can process still or moving images acquired by the image sensor to extract necessary information and transmit the extracted information to the processor.

[0354] At this point, 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, but the invention is not limited thereto.

[0355] Although the embodiments have been described above primarily, these embodiments are illustrative only and do not limit the invention. Those skilled in the art will understand that various modifications and applications not illustrated above can be made without departing from the essential characteristics of these embodiments. For example, each component specifically shown in these embodiments can be implemented by modification. Furthermore, differences relating to these modifications and applications should be interpreted as including within the scope of the invention as defined by the appended claims.

Claims

1. A camera actuator, comprising: case; A first lens assembly and a second lens assembly, which move along the optical axis within the housing; A second lens group and a third lens group, the second lens group being connected to a first lens holder of the first lens assembly, and the third lens group being connected to a second lens holder of the second lens assembly. A drive unit, configured to move the first lens assembly and the second lens assembly, The first lens assembly includes a first outer surface, which is the lower surface of the first lens holder in the optical axis direction. The second lens assembly includes a second outer surface facing the first outer surface and at least partially overlapping the first outer surface in the optical axis direction, and the second outer surface is the upper surface of the second lens holder in the optical axis direction. The camera actuator includes a coupling member that contacts at least one of the first outer surface and the second outer surface. The connecting component includes: A first connecting member, the first connecting member contacting the first outer surface; and The second connecting member contacts the second outer surface, and The shapes of the first connecting member and the second connecting member correspond to each other.

2. The camera actuator according to claim 1, wherein, The first bonding member and the second bonding member do not overlap at least partially in the direction of the optical axis.

3. The camera actuator according to claim 1, wherein, The first length of the first connecting member in the optical axis direction is less than the second length of the second connecting member in the optical axis direction.

4. The camera actuator according to claim 1, wherein, The first lens assembly includes a first lens aperture. The second lens assembly includes a second lens aperture, and The camera actuator also includes at least one lens disposed in each of the first lens aperture and the second lens aperture.

5. The camera actuator according to claim 1, wherein, The first outer surface includes: 1-1 outer region, the 1-1 outer region being symmetrical in a first direction perpendicular to the optical axis and having a curved outer edge; and The 1-2 outer regions are symmetrical in a second direction perpendicular to the first direction and have flat outer edges.

6. The camera actuator according to claim 5, wherein, The first minimum thickness of the outer region 1-1 is greater than the second minimum thickness of the outer region 1-2.

7. The camera actuator according to claim 5, wherein, The connecting member is disposed in the outer region of 1-1.

8. The camera actuator according to claim 1, wherein, The second outer surface includes: 2-1 outer region, the 2-1 outer region being symmetrical in a first direction perpendicular to the optical axis and having a curved outer edge; and 2-2 outer region, which is symmetrical in a second direction perpendicular to the first direction and has a flat outer edge.

9. The camera actuator according to claim 8, wherein, The third minimum thickness of the outer region of 2-1 is greater than the fourth minimum thickness of the outer region of 2-2.

10. The camera actuator according to claim 8, wherein, The connecting component is in contact with the outer region of 2-1.

11. The camera actuator according to claim 1, wherein, The first lens assembly moves along the optical axis within a first moving distance. The second lens assembly moves along the optical axis within a second moving distance, and The first moving distance is less than the second moving distance.

12. The camera actuator according to claim 5, wherein, The first lens assembly includes a third outer surface opposite to the first outer surface, and The third outer surface includes an outer region 3-1 and an outer region 3-2. The outer region 3-1 is symmetrical in the first direction perpendicular to the optical axis and has a curved outer edge. The outer region 3-2 is symmetrical in the second direction perpendicular to the first direction and has a flat outer edge.

13. The camera actuator according to claim 12, wherein, The first minimum thickness of the outer region 1-1 is greater than the minimum thickness of the outer region 3-1.

14. The camera actuator according to claim 8, wherein, The second lens assembly includes a fourth outer surface opposite to the second outer surface. The fourth outer surface includes an outer region 4-1 and an outer region 4-2. The outer region 4-1 is symmetrical in the first direction perpendicular to the optical axis and has a curved outer edge. The outer region 4-2 is symmetrical in the second direction perpendicular to the first direction and has a flat outer edge.

15. The camera actuator according to claim 14, wherein, The third minimum thickness of the outer region 2-1 is greater than the minimum thickness of the outer region 4-1.

16. The camera actuator according to claim 12, in, The second lens assembly includes a fourth outer surface opposite to the second outer surface. Wherein, the first outer surface to the fourth outer surface at least partially overlap each other in the direction of the optical axis.

17. The camera actuator according to claim 1, in, The first bonding member overlaps with the first outer surface in the optical axis direction.

18. The camera actuator according to claim 1, in, The second bonding member overlaps with the second outer surface in the optical axis direction.

19. The camera actuator according to claim 1, in, The outer surface of the first connecting member and the outer surface of the second connecting member correspond to each other.

Images