Camera actuator and camera module including the same

Abstract

In an embodiment, a camera actuator is disclosed, the camera actuator comprising: a housing; a first lens assembly and a second lens assembly which move in the housing in the optical axis direction; a driving unit that drives the first lens assembly and the second lens assembly; a substrate disposed in the housing; and a driver component, in which the housing includes a first side portion and a groove on an outer side of the first side portion, the substrate includes a first sub-substrate disposed on the first side portion, the driver component is disposed on the first sub-substrate in the groove, and at least one side portion of the driver component is exposed to the outside.

Description

Technical Field

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

[0002] A camera is a device that takes photos or videos of a subject and is installed in portable devices, drones, vehicles, etc. Camera modules may have image stabilization (IS) functions to correct or prevent image shake caused by user movement to improve image quality, autofocus functions to automatically adjust the gap between the image sensor and the lens to align the lens's focal length, and zoom functions to increase or decrease the magnification of distant objects to take pictures using zoom lenses.

[0003] Camera actuators may include a driver integrated circuit (IC) for driving. When the driver IC is driven, heat may be generated. Conventional camera actuators have the driver IC housed inside the casing, which can lead to problems such as lens resolution degradation due to the heat generated by the driver IC.

[0004] Additionally, when the lens assembly moves inside the camera actuator, shock-absorbing foam can be placed inside the camera actuator to prevent impacts caused by collisions with the camera actuator. However, when the foam and the lens assembly come into contact, the following problem may occur: a vacuum state is created when the surfaces come into contact with each other, and the surfaces cannot be separated. Summary of the Invention

[0005] Technical issues

[0006] The implementation provides a camera actuator capable of preventing heat generated by the driver IC from being transferred to the interior.

[0007] In addition, the implementation provides a camera actuator that facilitates heat dissipation.

[0008] In addition, the embodiment provides a camera actuator that can prevent the degradation of lens resolution due to heat.

[0009] Additionally, the embodiment provides a camera actuator capable of preventing a vacuum state at the seated end of the foam and lens assembly.

[0010] In addition, the embodiment provides a camera actuator that can improve the motion stability of the lens assembly.

[0011] In addition, the implementation provides a camera actuator that can improve driving efficiency.

[0012] The problems to be solved in the implementation are not limited to those described herein, and also include objectives or effects that can be obtained from the solutions to the problems described below or from the implementation.

[0013] Technical solution

[0014] A camera actuator according to an embodiment includes: a housing; a first lens assembly and a second lens assembly configured to move within the housing along an optical axis; a drive unit configured to move the first lens assembly and the second lens assembly; a plate disposed within the housing; and a driver unit, wherein the housing includes a first side surface and a groove disposed outside the first side surface, the plate includes a first sub-plate disposed on the first side surface, the driver unit is disposed on the first sub-plate and located inside the groove, and at least one side surface of the driver unit is exposed to the outside.

[0015] The groove can overlap with the first sub-plate in a first direction perpendicular to the optical axis.

[0016] The housing may include a second side surface perpendicular to the first side surface, and a portion of the recess may be exposed on the second side surface.

[0017] The housing may include a protrusion that extends along the optical axis on the second side surface.

[0018] The protruding portion may be adjacent to the first side surface, and the first sub-plate may extend along the optical axis and overlap with the protruding portion in the first direction.

[0019] The groove may extend toward the protruding portion in the optical axis direction, the protruding portion may include a first surface parallel to the second side surface, and at least one side surface of the groove may be disposed on the first surface.

[0020] A portion of the driver unit can be configured to overlap with the protruding portion in the first direction.

[0021] The width of the groove in the optical axis direction can be greater than the width of the protrusion in the optical axis direction.

[0022] The width of the groove in the first direction can be greater than the width of the driver unit in the first direction.

[0023] The width of the protruding portion in the second direction perpendicular to the optical axis and the first direction can be the same as the width of the first side surface in the second direction, and the width of the groove in the second direction can be smaller than the width of the protruding portion and the width of the first side surface in the second direction.

[0024] The width of the driver unit in the first direction can be smaller than the width of the groove in the first direction.

[0025] The groove may include a first extension portion and a second extension portion extending along a second direction, and the width of the first extension portion and the second extension portion in the optical axis direction is smaller than the width of the groove in the optical axis direction.

[0026] The housing may include an upper surface perpendicular to the first side surface and the second side surface, and the plate may include a second sub-plate disposed on the upper surface.

[0027] The housing may include a third side surface that is parallel to the first side surface and perpendicular to the second side surface, and the plate may include a third sub-plate disposed on the third side surface.

[0028] The camera actuator may include a heat dissipation member disposed in a recess, and the heat dissipation member may be configured to surround the outer portion of the driver unit.

[0029] The camera actuator according to the embodiment may further include a first stop and a second stop disposed in the housing, and the driver unit may be configured to be further away from the first lens assembly in the optical axis direction than the first stop, and the driver unit may be configured to be further away from the second lens assembly in the optical axis direction than the second stop.

[0030] The driving unit may include a first driving unit configured to drive a first lens assembly and a second driving unit configured to drive a second lens assembly, and the driving unit may partially overlap with the first driving unit in a first direction and may partially overlap with the second driving unit in the optical axis direction.

[0031] A camera actuator according to an embodiment includes: a housing; a first lens assembly and a second lens assembly configured to move within the housing along an optical axis; a drive unit configured to move the first lens assembly and the second lens assembly; a plate disposed within the housing; and a driver unit, wherein the drive unit includes a first coil for moving the first lens assembly and a second coil for moving the second lens assembly, the driver unit overlapping the second coil in the optical axis direction and overlapping the first coil in a first direction perpendicular to the optical axis direction, and the housing includes a region between the second coil and the driver unit.

[0032] The area of ​​the housing between the second coil and the driver unit may overlap with the first coil in the first direction.

[0033] The board may include a first sub-board disposed on a first side surface of the housing, and a second coil and driver unit may be disposed on the first sub-board.

[0034] The driver unit can be positioned between the housing and the first sub-board.

[0035] The camera module according to an embodiment includes: a camera actuator; an OIS actuator; a lens barrel disposed between the camera actuator and the OIS actuator; a circuit board including an image sensor; and a cover disposed outside the camera actuator and the OIS actuator.

[0036] A camera actuator according to an embodiment includes: a housing; a first lens assembly and a second lens assembly configured to move within the housing along an optical axis; a drive unit configured to move the first lens assembly and the second lens assembly; a housing cover disposed on the housing; and a stop portion disposed inside the housing, wherein each of the first lens assembly and the second lens assembly includes a contact surface adjacent to the stop portion, and the contact surface includes a seating portion overlapping the stop portion in the optical axis direction.

[0037] The seating portion may include a preventive portion, and the preventive portion may include multiple grooves or protrusions.

[0038] The stop portion may include a first stop portion disposed inside the housing and a second stop portion disposed on the housing cover.

[0039] The first stop portion may include a first stop and a third stop spaced apart in a direction perpendicular to the optical axis, and the second stop portion may include a second stop and a fourth stop spaced apart in a direction perpendicular to the optical axis.

[0040] The contact surfaces may include: a first surface of the first lens assembly facing the first stop and a second surface of the first lens assembly facing the second stop; and a third surface of the second lens assembly facing the third stop and a fourth surface of the second lens assembly facing the fourth stop, wherein the first surface to the fourth surface may each include a first seating portion to a fourth seating portion.

[0041] The first to fourth seating portions may each include a first anti-protrusion portion protruding in the optical axis direction.

[0042] The first prevention portion may extend along a first direction perpendicular to the optical axis, and the first to fourth seating portions may each include a second prevention portion extending along a second direction perpendicular to both the optical axis and the first direction.

[0043] The first prevention portion may include 1-1 prevention portion and 1-2 prevention portion spaced apart in the second direction.

[0044] The second prevention portion may include 2-1 prevention portion and 2-2 prevention portion spaced apart in the first direction.

[0045] The first to fourth seating portions may include an intersecting region in which the 1-1 prevention portion and the 1-2 prevention portion are configured to intersect vertically with the 2-1 prevention portion and the 2-2 prevention portion.

[0046] The intersecting area can overlap with the stop part in the optical axis direction.

[0047] The distance between the 1-1 preventing part and the 1-2 preventing part in the second direction may be less than the width of the stop part in the second direction.

[0048] The distance between the 2-1 preventing part and the 2-2 preventing part in the first direction may be less than the width of the stop part in the first direction.

[0049] The length of the 1-1 or 1-2 preventive portion in the first direction may be shorter than the length of the 2-1 or 2-2 preventive portion in the second direction.

[0050] The first and second surfaces may not overlap each other in the optical axis direction, while the third and fourth surfaces may overlap each other in the optical axis direction.

[0051] The first prevention part may include a 1-3 prevention part disposed between the 1-1 prevention part and the 1-2 prevention part, and the distance from the 1-3 prevention part to the 1-1 prevention part in the second direction and the distance from the 1-3 prevention part to the 1-2 prevention part in the second direction may be the same.

[0052] The camera module according to the embodiments may include: a camera actuator according to any one of claims 1 to 15; an OIS actuator; a lens barrel disposed between the camera actuator and the OIS actuator; a circuit board including an image sensor; and a cover disposed outside the camera actuator and the OIS actuator.

[0053] Beneficial effects

[0054] According to an embodiment, a camera actuator capable of preventing heat generated by the driver IC from being transferred to the interior can be provided.

[0055] Alternatively, a camera actuator that allows for easy heat dissipation can be provided.

[0056] In addition, a camera actuator that can prevent the degradation of lens resolution due to heat can be provided.

[0057] Additionally, a camera actuator capable of preventing a vacuum state at the seated end of the foam and lens assembly can be realized.

[0058] Alternatively, a camera actuator that can improve the motion stability of the lens assembly can be provided.

[0059] Alternatively, a camera actuator that can improve driving efficiency can be provided.

[0060] The various useful advantages and effects of the present invention are not limited to those described above, and can be more readily understood in the process of describing specific embodiments of the invention. Attached Figure Description

[0061] Figure 1 This is a perspective view of the camera module according to the implementation method.

[0062] Figure 2 This is an exploded perspective view of the camera module according to the implementation method.

[0063] Figure 3 It is along Figure 1 The cross-sectional view taken from line AA' in the diagram.

[0064] Figure 4 This is a perspective view of a camera actuator according to an embodiment.

[0065] Figure 5 This is a view showing the upper surface of a camera actuator according to an embodiment.

[0066] Figure 6 It is along Figure 4 The cross-sectional view taken from line BB' in the diagram.

[0067] Figure 7 This is a view showing the second side surface of a camera actuator according to an embodiment.

[0068] Figure 8 This is a perspective view of the housing according to the embodiment.

[0069] Figure 9 This is a view showing the upper surface of the housing according to an embodiment.

[0070] Figure 10 This is a view showing the first side surface of the housing according to an embodiment.

[0071] Figure 11 This is a view showing the second side surface of the housing according to an embodiment.

[0072] Figure 12 This is a perspective view of the first lens assembly and the second lens assembly according to the embodiment.

[0073] Figure 13 This is a perspective view of the drive unit according to the implementation method.

[0074] Figure 14 This is a perspective view of the stop portion according to the embodiment.

[0075] Figure 15 This is a perspective view of the plate according to the implementation method.

[0076] Figure 16 This is a view showing the state in which the board and driver unit are combined according to the embodiment.

[0077] Figure 17 yes Figure 6 A magnified view of part K1 in the image.

[0078] Figure 18 yes Figure 7 A magnified view of part K2 in the image.

[0079] Figure 19 It is along Figure 5 The cross-sectional view taken by line CC' in the diagram.

[0080] Figure 20 yes Figure 19 A magnified view of part K3 in the image.

[0081] Figure 21 This is a perspective view of a camera actuator according to an embodiment.

[0082] Figure 22 It is along Figure 21 The cross-sectional view taken from line DD' in the diagram.

[0083] Figure 23 This is a perspective view of the housing according to the embodiment.

[0084] Figure 24 It is along Figure 23 The cross-sectional view of line EE' in the diagram.

[0085] Figure 25 This is a perspective view of the first lens assembly and the second lens assembly according to the embodiment.

[0086] Figure 26 This is a perspective view of the housing cover according to the embodiment.

[0087] Figure 27 A perspective view and a partial enlarged view of the stop portion according to an embodiment are shown.

[0088] Figure 28 This is a perspective view of a camera actuator according to an embodiment.

[0089] Figure 29 This is a front view of a camera actuator according to an embodiment.

[0090] Figure 30It is along Figure 28 The cross-sectional view taken from line FF' in the diagram.

[0091] Figure 31 It is along Figure 29 The cross-sectional view taken from line GG' in the diagram.

[0092] Figure 32 It is along Figure 29 The cross-sectional view taken by line HH' in the diagram.

[0093] Figure 33 It is along Figure 29 Another cross-sectional view taken from line GG' in the diagram.

[0094] Figure 34 It is along Figure 29 Another cross-sectional view taken from line HH' in the diagram.

[0095] Figure 35 yes Figure 33 A magnified view of part K4 in the image.

[0096] Figure 36 yes Figure 34 A magnified view of part K5 in the image.

[0097] Figure 37 yes Figure 33 A magnified view of part K6 in the image.

[0098] Figure 38 yes Figure 34 A magnified view of part K7 in the image.

[0099] Figure 39 This is a perspective view of a mobile terminal that uses a sensor module according to an implementation method.

[0100] Figure 40 This is a perspective view of a vehicle using a sensor module implemented according to the method described. Detailed Implementation

[0101] In the following, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0102] However, the technical concept of the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and one or more components in the embodiments can be selectively connected or replaced for use within the scope of the technical concept of the present invention.

[0103] Furthermore, unless explicitly and specifically defined and described, the terms (including technical and scientific terms) used in the embodiments of this invention may be interpreted as having meanings that are generally understandable to those skilled in the art to which this invention pertains, and commonly used terms, such as those defined in dictionaries, may be interpreted taking into account the contextual meaning of the relevant art.

[0104] Furthermore, the terminology used in the embodiments of the present invention is intended to describe the embodiments and is not intended to limit the present invention.

[0105] In this document, unless explicitly stated in the phrase, the singular may also include the plural, and when the singular is described as “at least one (or one or more) of A, B and C”, it may include one or more of all combinations that can be combined with A, B and C.

[0106] In addition, when describing the components of embodiments of the present invention, terms such as first, second, A, B, (a) and (b) may be used.

[0107] These terms are intended only to distinguish one component from another, and are not intended to limit the nature, order, or sequence of components.

[0108] Furthermore, when a component is described as "connected," "linked," or "attached" to another component, it can include not only cases where the component is directly connected, linked, or attached to another component, but also cases where the component is "connected," "linked," or "attached" through another component disposed between the component and other components.

[0109] Furthermore, when a component is described as being formed or disposed "above or below" another component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or disposed between the two components. Additionally, when expressed as "above (upper) or below (lower)," it can include not only the meaning of an upward direction based on a component, but also the meaning of a downward direction based on a component.

[0110] Figure 1 This is a perspective view of the camera module according to the implementation method. Figure 2 This is an exploded perspective view of the camera module according to the implementation method, and Figure 3 It is along Figure 1 The cross-sectional view taken from line AA' in the diagram.

[0111] Reference Figure 1 and Figure 2 According to the embodiment, the camera module 1 may include a cover CV, an OIS actuator 100, a camera actuator 1000, and a circuit board 200.

[0112] The cover CV can cover the OIS actuator 100 and / or the camera actuator 1000. The cover CV can improve the connection force between the OIS actuator 100 and the camera actuator 1000.

[0113] Furthermore, the cover CV can be made of a material that performs electromagnetic shielding. Therefore, the OIS actuator 100 and camera actuator 1000 in the cover CV can be easily protected.

[0114] In one embodiment, the OIS actuator 100 can alter the optical path. In another embodiment, the OIS actuator 100 can alter the optical path vertically via internal optical components (e.g., mirrors or prisms). Using this configuration, even with a reduced thickness of the mobile terminal, a lens configuration with a size larger than the thickness of the mobile terminal can be provided within the mobile terminal to perform magnification, autofocus (AF), zoom, and optical image stabilization (OIS) functions by altering the optical path.

[0115] The OIS actuator 100 can change the optical path from a second direction to a third direction.

[0116] Additionally, the OIS actuator 100 may include a lens disposed in a predetermined lens barrel (not shown). For example, the lens may include a fixed-focus lens. A fixed-focus lens may also be referred to as a "single-focus lens" or a "primary lens".

[0117] The camera actuator 1000 can be located at the rear end of the OIS actuator 100. The camera actuator 1000 can be coupled to the OIS actuator 100. Furthermore, the camera actuator 1000 and the OIS actuator 100 can be coupled in various ways.

[0118] Furthermore, the camera actuator 1000 can be a zoom actuator or an AF actuator. For example, the camera actuator 1000 can support one or more lenses and move the lenses in response to a control signal from a predetermined control unit to perform an autofocus function or a zoom function.

[0119] The circuit board 200 can be located at the rear end of the camera actuator 1000. The circuit board 200 can be electrically connected to the camera actuator 1000 and the OIS actuator 100. In addition, multiple circuit boards 200 can be present.

[0120] The circuit board 200 can be connected to the housing of the camera actuator 1000 and is equipped with an image sensor. In addition, a base unit including a filter can be mounted on the circuit board 200.

[0121] The camera module according to the embodiments may include one or more camera modules. For example, multiple camera modules may include a first camera module and a second camera module. Furthermore, as described above, each camera module in the camera module can be used interchangeably with "camera device", "camera apparatus", "imaging device", "imaging module", "imaging instrument", etc.

[0122] Furthermore, the first camera module may include one or more actuators. For example, the first camera module may include an OIS actuator 100 and a camera actuator 1000.

[0123] Furthermore, the second camera module can be housed in a predetermined housing (not shown) and may include an actuator (not shown) capable of driving the lens unit. The actuator may be a voice coil motor, a micro-actuator, a silicon actuator, etc., and can be applied in various ways such as capacitive, thermal, bicrystalline, and electrostatic methods, but is not limited thereto. Additionally, in this specification, the camera actuator may be referred to as an actuator, etc. Furthermore, a camera module including multiple camera modules can be installed in various electronic devices, such as mobile terminals.

[0124] Reference Figure 3 The camera module according to the embodiment may include an OIS actuator 100 that performs OIS function and a camera actuator 1000 that performs zoom function and AF function.

[0125] Light can enter the camera module through an opening in the upper surface of the OIS actuator 100. That is, light can enter the interior of the OIS actuator 100 along the optical axis (e.g., the Y-axis), and the optical path can be changed to a vertical direction (e.g., the Z-axis) by optical components. Furthermore, light can pass through the camera actuator 1000 and can be incident on an image sensor located at one end of the camera actuator 1000 (path).

[0126] 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 axis direction, etc. The second direction is the Y-axis direction in the accompanying drawings, and can be used interchangeably with the first axis direction, etc. The second direction is perpendicular to the first direction. Additionally, the third direction is the Z-axis direction in the accompanying drawings, and can be used interchangeably with the third axis direction, etc. The third direction is perpendicular to both the first and second directions. Here, the third direction (Z-axis direction) corresponds to the direction of the optical axis, and the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis. Furthermore, in the following description of the camera actuator 1000, the optical axis direction corresponds to the optical path and is used as the third direction (Z-axis direction), and the following description is based on this.

[0127] Furthermore, utilizing this configuration, the camera module according to the embodiment can improve the spatial constraints of the OIS actuator and the camera actuator by changing the optical path. That is, the camera module according to the embodiment can extend the optical path while minimizing the thickness of the camera module in response to changes in the optical path. Moreover, it should be understood that the camera actuator can also provide a wide range of magnifications by controlling the focal point, etc., in the extended optical path.

[0128] Furthermore, the camera module according to the embodiment can achieve OIS by controlling the optical path through the OIS actuator, thereby minimizing the occurrence of eccentricity or tilt and achieving optimal optical characteristics.

[0129] Furthermore, the camera actuator 1000 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 camera actuator 1000.

[0130] Additionally, the camera actuator 1000 may include a coil and a magnet to perform high magnification zoom functionality.

[0131] For example, although the first and second lens assemblies can be movable lenses that move through the coil, magnet, and guide pin, and the third lens assembly (not shown) can be a fixed lens, the invention is not limited thereto. For example, the third lens assembly can function as a focuser that forms an optical image at a specific location, and the second lens assembly can function as a transducer that re-forms the image formed in the third lens assembly as the focuser at different locations. Simultaneously, the second lens assembly can have a significant magnification change due to significant changes in distance to the object or image distance, and the second lens assembly as the transducer can play an important role in changes in focal length or magnification of the optical system. Furthermore, the image point formed in the second lens assembly as the transducer can vary slightly depending on the position of the second lens assembly. Therefore, the first lens assembly can perform a position compensation function on the image formed by the transducer. For example, the first lens assembly can function as a compensator for accurately forming the image point formed in the second lens assembly as the transducer at the actual position of the image sensor. For example, the first and second lens assemblies can be driven by an electromagnetic force generated by the interaction of the coil and magnet.

[0132] Figure 4 This is a perspective view of a camera actuator according to an embodiment. Figure 5 This is a view showing the upper surface of a camera actuator according to an embodiment. Figure 6 It is along Figure 4 The cross-sectional view taken from line BB' in the diagram, and Figure 7 This is a view showing the second side surface of a camera actuator according to an embodiment.

[0133] Reference Figures 4 to 6 According to the embodiments, the camera actuator 1000 may include a housing 1100, a first lens assembly 1200, a second lens assembly 1300, a drive unit 1400, a plate 1500, a driver unit IC, a housing cover 1600, and a stop portion 1700.

[0134] Figure 8 This is a perspective view of the casing according to the embodiment. Figure 9 This is a view showing the upper surface of the housing according to an embodiment. Figure 10 This is a view showing the first side surface of the housing according to an embodiment, and Figure 11 This is a view showing the second side surface of the housing according to an embodiment.

[0135] Reference Figures 4 to 11 The camera actuator 1000 according to the embodiment may include a housing 1100.

[0136] The housing 1100 may form the outer wall of the camera actuator 1000. A housing cover 1600 may be disposed on one surface of the housing 1100. The first lens assembly 1200, the second lens assembly 1300, the drive unit 1400, and the stop portion 1700 may be included inside the housing 1100. The drive unit 1400 may be disposed on a side surface of the housing 1100 parallel to the optical axis. The surface of the housing 1100 perpendicular to the optical axis may include an opening. A plate 1500 may be disposed on the outer side of the housing 1100.

[0137] The housing 1100 may be included in the region between the second coil 1421 and the driver unit IC. The region of the housing 1100 between the second coil 1421 and the driver unit IC may overlap with the first coil 1411 in a first direction.

[0138] The housing 1100 may include multiple side surfaces. The housing 1100 may include a first side surface to a fourth side surface S1, S2, S3 and S4.

[0139] The first side surface S1 can be a side surface configured to be parallel to the optical axis. The first side surface S1 can be perpendicular to the second side surface S2 and the fourth side surface S4, and can be parallel to the third side surface S3. The first side surface S1 can include an opening. A first sub-plate 1510 can be provided on the first side surface S1. A groove G can be provided on the outer side of the first side surface S1. The first side surface S1 can include one side surface of a protruding portion 1110. A second driving unit 1420 can be provided on the inner side of the first side surface S1.

[0140] The second side surface S2 can be a side surface configured perpendicular to the optical axis. The second side surface S2 can be perpendicular to the first side surface S1 and the third side surface S3, and parallel to the fourth side surface S4. The second side surface S2 can include an opening. An image sensor (not shown) can be disposed in the opening of the second side surface S2. A protrusion 1110 can be disposed on the outer side of the second side surface S2. The protrusion 1110 can be disposed on the second side surface S2 in the optical axis direction, and the protrusion 1110 can be disposed at the portion of the second side surface S2 that contacts the first side surface S1. A first stop 1710 and a second stop 1720 can be disposed on the inner side of the second side surface S2.

[0141] The third side surface S3 can be a side surface configured to be parallel to the optical axis. The third side surface S3 can be perpendicular to the second side surface S2 and the fourth side surface S4, and can be parallel to the first side surface S1. The third side surface S3 can include an opening. A third sub-plate 1530 can be provided on the third side surface S3. A first driving unit 1410 can be provided on the inner side of the third side surface S3.

[0142] The fourth side surface S4 can be a side surface configured perpendicular to the optical axis. The fourth side surface S4 can be perpendicular to the first side surface S1 and the third side surface S3, and can be parallel to the second side surface S2. The fourth side surface S4 can include an opening. The housing cover 1600 can be disposed in the opening of the fourth side surface S4, and a third lens assembly (not shown) can be disposed on the housing cover 1600. Light passing through the third lens assembly (not shown) can pass through the fourth side surface S4 and can be incident on the camera actuator 1000.

[0143] The housing 1100 may include an upper surface S5. The upper surface S5 may be perpendicular to the first side surface to the fourth side surface S1, S2, S3 and S4. A second sub-plate 1520 may be provided on the upper surface S5 of the housing 1100.

[0144] The housing 1100 may include a recess G. The recess G may be disposed on the outer side of the first side surface S1 of the housing 1100. The recess G may be disposed in the first side surface S1 in a direction contacting the second side surface S2. The recess G may have a shape that is recessed to a certain depth in the first side surface S1 along a first direction. The shape of the recess G is not limited. For example, the recess G may be an empty space in the shape of a cuboid.

[0145] The driver unit IC can be disposed inside the recess G. By arranging the driver unit IC inside the recess G located on the outside of the housing 1100, heat generated in the driver unit IC can be prevented from being transferred to the lens inside the housing 1100, and heat can be easily dissipated to the outside.

[0146] A portion of the groove G may be exposed to the second side surface S2. By exposing at least one side surface of the groove to the second side surface S2, at least one side surface of the groove may be exposed to the outside. By exposing at least one side surface of the groove to the outside, the heat generated in the driver unit IC inside the groove can be easily dissipated to the outside.

[0147] The groove G can overlap with the first sub-board 1510 in a first direction perpendicular to the optical axis. The first sub-board 1510 can be disposed on the first side surface S1 of the housing 1100, and can also be disposed on the upper surface of the groove G. The first sub-board 1510 can be disposed on the upper surface of the groove G, and can overlap with the groove G in the first direction. The groove G and the first sub-board 1510 can overlap in the first direction, and the driver unit IC disposed on the first sub-board 1510 can be disposed inside the groove G.

[0148] The groove G may extend toward the protrusion 1110 in the optical axis direction, and a portion of the groove G may be disposed on the first surface P1 of the protrusion 1110. At least one side surface of the groove G may be disposed on the first surface P1 of the protrusion 1110, such that the interior of the groove G may be exposed to the exterior.

[0149] The housing 1100 may include a protrusion 1110.

[0150] The protrusion 1110 may protrude along the optical axis on the second side surface S2. One side surface of the protrusion 1110 may be located on the first side surface S1. The protrusion 1110 may be adjacent to the first side surface S1. The protrusion 1110 may be adjacent to the first side surface S1 and may contact the first sub-plate 1510. The protrusion 1110 may overlap with the first sub-plate 1510 in a first direction. The protrusion 1110 may include a portion of a groove G. The groove G may extend and may be disposed in the protrusion 1110. The protrusion 1110 may include a first surface as a protruding surface, and the first surface may include a side surface of the groove G, such that the groove G is exposed to the outside. The protrusion 1110 may overlap with a portion of the driver unit IC in the first direction. The protrusion 1110 may protrude in the optical axis direction, such that the driver unit IC is positioned away from the lens, and heat can be more easily dissipated to the outside. In addition, the protrusion 1110 may be disposed in the optical axis direction so as not to increase the width of the camera actuator 1000 in the direction perpendicular to the optical axis direction.

[0151] Figure 12 This is a perspective view of the first lens assembly and the second lens assembly according to the embodiment.

[0152] Reference Figure 6 and Figure 12 According to the embodiments, the camera actuator 1000 may include a first lens assembly 1200 and a second lens assembly 1300.

[0153] The first lens assembly 1200 and the second lens assembly 1300 can be movable lenses that move through a coil, a magnet, and a guide pin. The second lens assembly can perform a transducer function to re-form a focused image at a different location. Simultaneously, the second lens assembly can have a significant magnification change due to significant changes in distance to the object or image distance, and as a transducer, it can play an important role in changes in focal length or magnification of the optical system. Furthermore, the image point formed in the second lens assembly as a transducer can vary slightly depending on the position of the second lens assembly. Therefore, the first lens assembly can perform a position compensation function for the image formed by the transducer. For example, the first lens assembly can function as a compensator to accurately form the image point formed in the second lens assembly as a transducer at the actual position of the image sensor. For example, the first and second lens assemblies can be driven by an electromagnetic force generated by the interaction of the coil and the magnet.

[0154] The first lens assembly 1200 and the second lens assembly 1300 can be disposed inside the housing 1100. The first lens assembly 1200 and the second lens assembly 1300 can be moved along the optical axis inside the housing 1100 via a drive unit 1400. The first lens assembly 1200 can be driven by a first drive unit 1410. The second lens assembly 1300 can be driven by a second drive unit 1420. The first lens assembly 1200 and the second lens assembly 1300 can be arranged to be spaced apart from each other in the optical axis direction. The first lens assembly 1200 and the second lens assembly 1300 can partially overlap with the stop portion 1700 in the optical axis direction. The first lens assembly 1200 and the second lens assembly 1300 can partially overlap with the housing cover 1600 in the optical axis direction.

[0155] Figure 13 This is a perspective view of the drive unit according to the implementation method.

[0156] Reference Figure 6 and Figure 13 The camera actuator 1000 according to the embodiment may include a drive unit 1400.

[0157] The driving unit 1400 can move the first lens assembly 1200 and the second lens assembly 1300. The driving unit 1400 can also move the first lens assembly 1200 and the second lens assembly 1300 up and down along the optical axis. The driving unit 1400 can be disposed inside the housing 1100. The driving unit 1400 may include multiple coils, multiple magnets, and multiple magnetic yokes. The driving unit 1400 can drive the first lens assembly 1200 and the second lens assembly 1300 through the electromagnetic force generated by the interaction between the coils and the magnets.

[0158] The drive unit 1400 may include a first drive unit 1410 and a second drive unit 1420. The first drive unit 1410 can drive the first lens assembly 1200. The first drive unit 1410 may be disposed inside the third side surface of the housing 1100. The second drive unit 1420 can drive the second lens assembly 1300. The second drive unit 1420 may be disposed inside the first side surface of the housing 1100. The first drive unit 1410 may partially overlap with the driver unit IC in a first direction. The second drive unit 1420 may partially overlap with the driver unit IC in the optical axis direction. The second drive unit 1420 and the driver unit IC can overlap in the optical axis direction, thereby allowing the driver unit IC to be positioned further away from the lens without increasing the width of the camera actuator in the first direction.

[0159] The drive unit 1400 may include a first coil 1411 for moving the first lens assembly 1200 and a second coil 1421 for moving the second lens assembly 1300.

[0160] The first coil 1411 may be included in the first drive unit 1410. The first coil 1411 can move the first lens assembly 1200. The first coil 1411 may be disposed on the third daughter board 1530. The first coil 1411 may be disposed on the third daughter board 1530 and may also be disposed inside the housing 1100. The first coil 1411 may be disposed on the inner side of the third side surface S3 of the housing 1100. The first coil 1411 may overlap with the driver unit IC in a first direction.

[0161] The second coil 1421 may be included in the second drive unit 1420. The second coil 1421 can move the second lens assembly 1300. The second coil 1421 may be disposed on the first daughter board 1510. The second coil 1421 may be disposed on the first daughter board 1510 and may also be disposed inside the housing 1100. The second coil 1421 may be disposed inside the first side surface S1 of the housing 1100. The second coil 1421 may overlap with the driver unit IC in the optical axis direction. The area of ​​the housing 1100 between the second coil 1421 and the driver unit IC may overlap with the first coil 1411 in the first direction.

[0162] Figure 14 This is a perspective view of the stop portion according to the embodiment.

[0163] Reference Figure 6 and Figure 14 The camera actuator 1000 according to the embodiment may include a stop portion 1700.

[0164] The stop portion 1700 may be disposed inside the housing 1100. The stop portion 1700 may be disposed inside the housing 1100 to prevent the first lens assembly 1200 and the second lens assembly 1300 from colliding with the internal portion of the housing 1100. The stop portion 1700 may contact the first lens assembly 1200 and the second lens assembly 1300 to absorb vibrations. The stop portion 1700 may include foam. The shape of the stop portion 1700 is not limited. For example, the stop portion 1700 may have a cuboid shape.

[0165] The stop portion 1700 may include a first stop and a second stop. The first stop portion may be disposed inside the housing 1100. The first stop portion may be disposed on a surface inside the housing 1100. The first stop portion may be disposed on a surface inside the housing 1100 to overlap with the first lens assembly 1200 or the second lens assembly 1300. The second stop portion may be disposed on the housing cover 1600. The second stop portion may be disposed on a surface of the housing cover 1600 facing the interior of the housing 1100. The second stop portion may be disposed on the housing cover 1600 to overlap with the first lens assembly 1200 or the second lens assembly 1300. The first stop portion and the second stop portion may be positioned relative to each other in opposite directions along the optical axis based on the first lens assembly 1200 and the second lens assembly 1300.

[0166] The stop portion may include a first stop 1710 and a second stop 1720. The first stop 1710 and the second stop 1720 may be spaced apart from each other in a first direction. The first stop 1710 may overlap with the first lens assembly 1200 in the optical axis direction. The second stop 1720 may overlap with the second lens assembly 1300 in the optical axis direction.

[0167] The first stop 1710 can be disposed between the first lens assembly 1200 and the driver unit IC in the optical axis direction. The second stop 1720 can be disposed between the second lens assembly 1300 and the driver unit IC in the optical axis direction.

[0168] The second stop portion may include a third stop 1730 and a fourth stop 1740. The third stop 1730 and the fourth stop 1740 may be spaced apart from each other in a first direction. The third stop 1730 may overlap with the first lens assembly 1200 in the optical axis direction. The fourth stop 1740 may overlap with the second lens assembly 1300 in the optical axis direction.

[0169] Figure 15 This is a perspective view of the plate according to the implementation method.

[0170] Reference Figure 4 and Figure 15 The camera actuator 1000 according to the embodiment may include a board 1500.

[0171] Board 1500 can be disposed within housing 1100. Board 1500 can be disposed on the outside of housing 1100. Driver unit IC and driver unit 1400 can be disposed on board 1500. Driver unit IC and driver unit 1400 can be disposed on the inside of board 1500. Board 1500 can fix driver unit IC and driver unit 1400. Board 1500 can transmit optical signal information from driver unit IC to driver unit 1400.

[0172] Board 1500 may include a first sub-board 1510, a second sub-board 1520 and a third sub-board 1530.

[0173] The first sub-plate 1510 can be disposed on the first side surface S1. The first sub-plate 1510 can be disposed in the optical axis direction and the second direction. The second sub-plate 1520 can be disposed on the upper surface S5. The second sub-plate 1520 can be disposed in both the optical axis direction and the first direction. The third sub-plate 1530 can be disposed on the third side surface S3. The third sub-plate 1530 can be disposed in both the optical axis direction and the second direction. The first sub-plate 1510 and the third sub-plate 1530 can be disposed parallel to each other. The first sub-plate 1510 and the third sub-plate 1530 can be disposed perpendicular to the second sub-plate 1520.

[0174] Figure 16 This is a view showing the state in which the board and driver unit are combined according to the embodiment.

[0175] Reference Figure 6 and Figure 16 The camera actuator 1000 according to the embodiment may include a driver unit IC.

[0176] The driver unit IC can receive optical signals and generate drive signals. The driver unit IC can generate signals to drive the drive unit 1400 using optical signals received from the image sensor. Additionally, the driver unit IC can supply current to the coil portion of the drive unit 1400. The driver unit IC may include a driver IC. The driver unit IC may be disposed on board 1500. The driver unit IC may be disposed on the first sub-board 1510. The driver unit IC may be disposed inside the first sub-board 1510. The driver unit IC may be disposed between the housing 1100 and the first sub-board 1510. The driver unit IC may be disposed inside the first sub-board 1510 and may be located inside the recess G. At least one surface of the driver unit IC may be exposed to the outside. The driver unit IC may be disposed inside the recess G, and at least one side surface may be configured to be exposed to the outside, thereby preventing generated heat from reaching the lens and facilitating heat dissipation to the outside.

[0177] A portion of the driver unit IC may be configured to overlap with the protrusion 1110 in a first direction. The driver unit IC may be configured to overlap with the protrusion 1110 to prevent heat generated in the driver unit IC from reaching the lens and to facilitate heat dissipation to the outside.

[0178] The driver unit IC can be positioned further away from the first lens assembly 1200 in the optical axis direction compared to the first stop 1710, and can be positioned further away from the second lens assembly 1300 in the optical axis direction compared to the second stop 1720. By arranging the driver unit IC further away from the first lens assembly 1200 and the second lens assembly 1300 in the optical axis direction compared to the first stop 1710 and the second stop 1720, heat transfer to the lens can be prevented, and heat dissipation to the outside can be prevented. In addition, by increasing the distance in the optical axis direction, heat dissipation can be promoted without increasing the width of the camera actuator 1000 in the first direction perpendicular to the optical axis direction.

[0179] The driver unit IC may partially overlap with the first driver unit 1410 in the first direction and may partially overlap with the second driver unit 1420 in the optical axis direction. The driver unit IC may partially overlap with the first driver unit 1410 in the first direction, but may not overlap with the second driver unit 1420 in the first direction. The driver unit IC may overlap with the second coil 1421 in the optical axis direction and with the first coil 1411 in the first direction. This partial overlap of the driver unit IC with the first driver unit 1410 in the first direction, but not with the second driver unit 1420 in the first direction, prevents heat transfer to the lens and prevents heat dissipation to the outside. Furthermore, by increasing the distance in the optical axis direction, heat dissipation can be facilitated without increasing the width of the camera actuator 1000 in the first direction perpendicular to the optical axis. The driver unit IC may partially overlap with the second driver unit 1420 in the optical axis direction. The partial overlap of the driver unit IC with the second driver unit 1420 in the optical axis direction facilitates heat dissipation without increasing the width of the camera actuator 1000 in the first direction.

[0180] Figure 17 yes Figure 6 A magnified view of part K1 in the image.

[0181] Reference Figure 17According to the embodiment, the width a1 of the groove G in the first direction can be greater than the width b1 of the driver unit IC in the first direction. This wider width a1 of the groove G in the first direction prevents the driver unit IC from directly contacting the housing 1100. By arranging the driver unit IC without direct contact with the housing 1100, heat transfer to the lens disposed inside the housing 1100 can be prevented, and heat can be more easily dissipated to the outside through air.

[0182] The width a1 of the groove G in the first direction can be smaller than the width c1 of the protrusion 1110 in the first direction.

[0183] The width a3 of the groove G in the optical axis direction can be greater than the width c3 of the protrusion 1110 in the optical axis direction. The width a3 of the groove G in the optical axis direction can be greater than the width b3 of the driver unit IC in the optical axis direction.

[0184] Figure 18 yes Figure 7 A magnified view of part K2 in the image.

[0185] Reference Figure 18 According to the embodiment, the width c2 of the protruding portion 1110 in the second direction perpendicular to both the optical axis direction and the first direction can be the same as the width c2 of the first side surface in the second direction. Furthermore, the width a2 of the groove G in the second direction can be smaller than the width c2 of both the protruding portion 1110 and the first side surface in the second direction. The width a2 of the groove G in the second direction can be larger than the width b2 of the driver unit IC in the second direction.

[0186] Figure 19 It is along Figure 5 The cross-sectional view taken by line CC' in the diagram, and Figure 20 yes Figure 19 A magnified view of part K3 in the image.

[0187] Reference Figure 19 and Figure 20 The groove G may include a first extension portion G1 and a second extension portion G2 extending along a second direction. The first extension portion G1 and the second extension portion G2 may be portions extending along the second direction of the groove G. The first extension portion G1 and the second extension portion G2 may be portions of the side surface of the groove G that is parallel to the optical axis direction extending along the second direction.

[0188] The widths d1 and e1 of the first extension portion G1 and the second extension portion G2 in the optical axis direction can be smaller than the width a3 of the groove G in the optical axis direction. The first extension portion G1 and the second extension portion G2 can have a certain width d2 and e2 in the second direction, thereby forming a relatively wide empty space inside the groove G. By forming a relatively wide empty space inside the groove G, heat dissipation to the outside through the empty space can be promoted. Furthermore, the widths d2 and e2 of the first extension portion G1 and the second extension portion G2 in the second direction can ensure a wide empty space while preventing foreign objects from entering from the outside.

[0189] Figure 21 This is a perspective view of a camera actuator according to an embodiment.

[0190] Reference Figure 21 According to the embodiments, the camera actuator 2000 may include a housing 2100 and a housing cover 2500.

[0191] The housing 2100 and housing cover 2500 can be disposed on the outside of the camera actuator 2000. The housing cover 2500 can be disposed on one surface of the housing 2100. The housing cover 2500 can be disposed on the housing 2100 in the optical axis direction.

[0192] Figure 22 It is along Figure 21 The cross-sectional view taken from line DD' in the diagram.

[0193] Reference Figure 22 According to the embodiments, the camera actuator 2000 may include a housing 2100, a first lens assembly 2200, a second lens assembly 2300, a drive unit 2400, a housing cover 2500, and a stop portion S.

[0194] Figure 23 This is a perspective view of the housing according to the embodiment, and Figure 24 It is along Figure 23 The cross-sectional view of line EE' in the diagram.

[0195] Reference Figures 22 to 24 The camera actuator 2000 according to the embodiment may include a housing 2100.

[0196] The housing 2100 may form the outer wall of the camera actuator 2000. A housing cover 2500 may be disposed on one surface of the housing 2100. The first lens assembly 2200, the second lens assembly 2300, the drive unit 2400, and the stop portion S may be included inside the housing 2100. The drive unit 2400 may be disposed on a side surface of the housing 2100 parallel to the optical axis. The upper and lower surfaces of the housing 2100 perpendicular to the optical axis may include openings. The lower surface of the housing 2100 perpendicular to the optical axis may include a first attachment surface C1 and a third attachment surface C3. The first attachment surface C1 and the third attachment surface C3 may be portions of the inner surfaces facing the interior of the housing 2100. The stop portion S may be disposed on the first attachment surface C1 and the third attachment surface C3.

[0197] Figure 25 This is a perspective view of the first lens assembly and the second lens assembly according to the embodiment.

[0198] Reference Figure 22 and Figure 25 According to the embodiments, the camera actuator 2000 may include a first lens assembly 2200 and a second lens assembly 2300.

[0199] The first lens assembly 2200 and the second lens assembly 2300 can be movable lenses that move through a coil, a magnet, and a guide pin. The second lens assembly can perform a transducer function to re-form a focused image at a different location. Simultaneously, the second lens assembly can have a significant magnification change due to significant changes in distance to the object or image distance, and as a transducer, it can play an important role in changes in focal length or magnification of the optical system. Furthermore, the image point formed in the second lens assembly as a transducer can vary slightly depending on the position of the second lens assembly. Therefore, the first lens assembly can perform a position compensation function for the image formed by the transducer. For example, the first lens assembly can be used as a compensator to accurately form the image point formed in the second lens assembly as a transducer at the actual position of the image sensor. For example, the first and second lens assemblies can be driven by an electromagnetic force generated by the interaction of the coil and the magnet.

[0200] The first lens assembly 2200 and the second lens assembly 2300 can be disposed inside the housing 2100. The first lens assembly 2200 and the second lens assembly 2300 can be moved along the optical axis within the housing 2100 via the drive unit 2400. The first lens assembly 2200 and the second lens assembly 2300 can be spaced apart from each other in the optical axis direction. The first lens assembly 2200 and the second lens assembly 2300 can partially overlap with the stop portion S in the optical axis direction. The first lens assembly 2200 and the second lens assembly 2300 can partially overlap with the housing cover 2500 in the optical axis direction.

[0201] Figure 26 This is a perspective view of the housing cover according to the embodiment.

[0202] Reference Figure 22 and Figure 26 The camera actuator 2000 according to the embodiment may include a housing cover 2500.

[0203] The housing cover 2500 can be fixedly disposed on one surface of the housing 2100. The housing cover 2500 can overlap with the housing 2100 in the optical axis direction. The stop portion S can be disposed on the housing cover 2500. The housing cover 2500 can increase the bonding area between the OIS actuator and the camera actuator 2000 to improve the bonding strength. A third lens assembly (not shown) can be disposed on the housing cover 2500. The housing cover 2500 can partially overlap with the first lens assembly 2200 and the second lens assembly 2300 in the optical axis direction.

[0204] Figure 27 A perspective view and a partial enlarged view of the stop portion according to an embodiment are shown.

[0205] Reference Figure 22 and Figure 27 The camera actuator 2000 according to the embodiment may include a stop portion S.

[0206] The stop portion S can be disposed inside the housing 2100. The stop portion S can be disposed inside the housing 2100 to prevent the first lens assembly 2200 and the second lens assembly 2300 from colliding with the internal portion of the housing 2100. The stop portion S can contact the first lens assembly 2200 and the second lens assembly 2300 to absorb vibrations. The stop portion S may include foam. The shape of the stop portion S is not limited. For example, the stop portion S may have a cuboid shape.

[0207] The stop portion S may include a first stop portion Sa and a second stop portion Sb. The first stop portion Sa may be disposed inside the housing 2100. The first stop portion Sa may be disposed on a surface inside the housing 2100. The first stop portion Sa may be disposed on a surface inside the housing 2100 to overlap with the first lens assembly 2200 or the second lens assembly 2300. The second stop portion Sa may be disposed on the housing cover 2500. The second stop portion Sa may be disposed on a surface of the housing cover 2500 facing the interior of the housing 2100. The second stop portion Sb may be disposed on the housing cover 2500 to overlap with the first lens assembly 2200 or the second lens assembly 2300. The first stop portion Sa and the second stop portion Sb may be positioned relative to each other in opposite directions along the optical axis, based on the first lens assembly 2200 and the second lens assembly 2300.

[0208] The first stop portion Sa may include a first stop S1 and a third stop S3. The first stop portion Sa may include a first stop S1 and a third stop S3 spaced apart in a direction perpendicular to the optical axis. The first stop S1 and the third stop S3 may be configured to be spaced apart from each other in a first direction. The first stop S1 may overlap with the first lens assembly 2200 in the optical axis direction. The third stop S3 may overlap with the second lens assembly 2300 in the optical axis direction.

[0209] The second stop portion Sb may include a second stop S2 and a fourth stop S4. The second stop portion Sb may include a second stop S2 and a fourth stop S4 spaced apart in a direction perpendicular to the optical axis. The second stop S2 and the fourth stop S4 may be arranged to be spaced apart from each other in a first direction. The second stop S2 may overlap with the first lens assembly 2200 in the optical axis direction. The fourth stop S4 may overlap with the second lens assembly 2300 in the optical axis direction.

[0210] Reference Figure 22 The camera actuator 2000 according to the embodiment may include a drive unit 2400.

[0211] The driving unit 2400 can move the first lens assembly 2200 and the second lens assembly 2300. The driving unit 2400 can also move the first lens assembly 2200 and the second lens assembly 2300 up and down along the optical axis. The driving unit 2400 can be disposed inside the housing 2100. The driving unit 2400 may include multiple coils, multiple magnets, and multiple magnetic yokes. The driving unit 2400 can drive the first lens assembly 2200 and the second lens assembly 2300 through the electromagnetic force generated by the interaction of the coils and magnets.

[0212] Figure 28 This is a perspective view of a camera actuator according to an embodiment. Figure 29 This is a front view of a camera actuator according to an embodiment, and Figure 30 It is along Figure 28 The cross-sectional view taken from line FF' in the diagram.

[0213] Reference Figures 28 to 30 According to the embodiments, the first lens assembly 2200 and the second lens assembly 2300 may include a contact surface F adjacent to the stop portion S. The contact surface F may be a surface adjacent to the stop portion S of the first lens assembly 2200 or the second lens assembly 2300. The contact surface F may be configured to face the optical axis direction. The contact surface F may be perpendicular to the optical axis direction. When the first lens assembly 2200 or the second lens assembly 2300 moves up and down along the optical axis direction, the contact surface F may contact the stop portion S.

[0214] According to the embodiments, the contact surface F of the first lens assembly 2200 may include a first surface F1 facing the first stop member S1 and a second surface F2 facing the second stop member S2, and the contact surface F of the second lens assembly 2300 may include a third surface F3 facing the third stop member S3 and a fourth surface F4 facing the fourth stop member S4.

[0215] The contact surface F may include the first surface to the fourth surface F1, F2, F3 and F4.

[0216] A first surface F1 and a second surface F2 may be included in a first lens assembly 2200. The first surface F1 and the second surface F2 may be spaced apart from each other in the optical axis direction. The first surface F1 and the second surface F2 may be positioned in different directions along the optical axis direction. The first surface F1 may face the first stop S1. When the first lens assembly 2200 moves along the optical axis direction, the first surface F1 may contact the first stop S1. The second surface F2 may face the second stop S2. When the first lens assembly 2200 moves along the optical axis direction, the second surface F2 may contact the second stop S2. The first surface F1 and the second surface F2 may not overlap in the optical axis direction. The first surface F1 and the second surface F2 may be spaced apart by a certain distance in a first direction. The areas of the first surface F1 and the second surface F2 may be different.

[0217] The third surface F3 and the fourth surface F4 may be included in the second lens assembly 2300. The third surface F3 and the fourth surface F4 may be spaced apart from each other in the optical axis direction. The third surface F3 and the fourth surface F4 may be positioned in different directions along the optical axis direction. The third surface F3 may face the third stop S3. When the second lens assembly 2300 moves along the optical axis direction, the third surface F3 may contact the third stop S3. The fourth surface F4 may face the fourth stop S4. When the second lens assembly 2300 moves along the optical axis direction, the fourth surface F4 may contact the fourth stop S4. The third surface F3 and the fourth surface F4 may overlap in the optical axis direction. The areas of the third surface F3 and the fourth surface F4 may be the same.

[0218] Figure 31 It is along Figure 29 The cross-sectional view taken by line GG' in the middle, and Figure 32 It is along Figure 29 The cross-sectional view taken by line HH' in the diagram.

[0219] Figure 31 It can be shown from top to bottom along the Z-axis direction in the attached figure. Figure 29 A cross-sectional view of the surface cut by line GG' in the diagram, and Figure 32 It can be shown from bottom to top along the Z-axis direction in the attached figure. Figure 29 A cross-sectional view of the surface cut by line HH' in the diagram.

[0220] Reference Figures 29 to 32 The camera actuator 2000 according to the embodiment may include attachment surfaces C1, C2, C3 and C4.

[0221] The attachment surface may include the first attachment surface to the fourth attachment surface C1, C2, C3 and C4.

[0222] The housing 2100 may include a first attachment surface C1 and a third attachment surface C3. The first attachment surface C1 and the third attachment surface C3 may be located on the inner surface of the housing 2100. A first stop S1 may be disposed on the first attachment surface C1, and a third stop S3 may be disposed on the third attachment surface C3. The first attachment surface C1 and the third attachment surface C3 may be spaced apart by a certain distance in a first direction.

[0223] The housing cover 2500 may include a second attachment surface C2 and a fourth attachment surface C4. The second attachment surface C2 and the fourth attachment surface C4 may be located on the inner surface of the housing cover 2500. A second stop S2 may be disposed on the second attachment surface C2, and a fourth stop S4 may be disposed on the fourth attachment surface C4. The second attachment surface C2 and the fourth attachment surface C4 may be spaced apart by a certain distance in a first direction.

[0224] Figure 33 It is along Figure 29 Another cross-sectional view taken from line II' in the diagram, and Figure 34 It is along Figure 29 Another cross-sectional view taken from line JJ' in the diagram.

[0225] Figure 33 It can be shown from bottom to top along the Z-axis direction in the attached figure. Figure 29 A cross-sectional view of the surface cut by line II' in the diagram, and Figure 34 It can be shown from top to bottom along the Z-axis direction in the attached figure. Figure 29 A cross-sectional view of the surface cut by line JJ'.

[0226] Reference Figures 29 to 34 According to the embodiment, the contact surface F may include a seating portion A that overlaps with the stop portion S in the optical axis direction.

[0227] The seating portion A may be the portion that contacts the stop portion S. The seating portion A may correspond to a portion of the contact surface F. The seating portion A may overlap with the stop portion S in the optical axis direction. The seating portion A may include first seating portions to fourth seating portions A1, A2, A3, and A4. The first seating portions to fourth seating portions A1, A2, A3, and A4 may be included in the first surface to the fourth surface F1, F2, F3, and F4, respectively.

[0228] The first mounting portion A1 may be included in the first surface F1 of the first camera actuator 2200. The first mounting portion A1 may include the area that overlaps in the optical axis direction when the first stop S1 contacts the first surface F1.

[0229] The second mounting portion A2 may be included in the second surface F2 of the first camera actuator 2200. The second mounting portion A2 may include the area that overlaps in the optical axis direction when the second stop S2 contacts the second surface F2.

[0230] The third mounting portion A3 may be included in the third surface F3 of the second camera actuator 2300. The third mounting portion A3 may include the area that overlaps in the optical axis direction when the third stop S3 contacts the third surface F3.

[0231] The fourth mounting portion A4 may be included in the fourth surface F4 of the second camera actuator 2300. The fourth mounting portion A4 may include the area that overlaps in the optical axis direction when the fourth stop S4 contacts the fourth surface F4.

[0232] According to the embodiment, the seating portion A includes a preventing portion P, and the preventing portion P may include a plurality of grooves or protrusions.

[0233] The mounting portion A may include a preventive portion P. The preventive portion P may include multiple grooves or protrusions. According to an embodiment, the camera actuator 2000 may include multiple grooves or protrusions in the portions where the first lens assembly 2200 and the second lens assembly 2300 contact the stop portion S to prevent a vacuum state from occurring in the mounting portion A of the first lens assembly 2200 and the second lens assembly 2300. The preventive portion P may include multiple grooves or protrusions of positive or negative shape to prevent a vacuum state, and by preventing a vacuum state, the motion stability of the first lens assembly 2200 and the second lens assembly 2300 can be improved, and the driving efficiency of the camera actuator 2000 can be improved.

[0234] When the preventing portion P includes multiple grooves, the preventing portion P can have a shape that is recessed to a certain depth from the contact surface F. When the preventing portion P has multiple protrusions, the preventing portion P can have a shape that protrudes from the contact surface F to a certain height. The description of the preventing portion P in this specification is applicable both when the preventing portion P includes multiple grooves and when the preventing portion P includes multiple protrusions.

[0235] According to the embodiment, the first to fourth seating portions A1, A2, A3 and A4 may each include a first anti-protrusion portion P1 protruding in the optical axis direction.

[0236] The first to fourth seating portions A1, A2, A3, and A4 may each include a first prevention portion P1. The first prevention portion P1 may be included within the prevention portion P. The first prevention portion P1 may protrude in the optical axis direction. The first prevention portion P1 may be positioned in a direction perpendicular to the optical axis direction. For example, the first prevention portion P1 may be positioned in a first direction.

[0237] According to the embodiment, the first prevention portion P1 can extend along a first direction perpendicular to the optical axis direction.

[0238] The first prevention portion P1 may extend along a first direction. The first prevention portion P1 may be configured to extend further along the first direction by a certain length from a portion included in the seating portion. The first prevention portion P1 may be configured to extend further along the first direction by a certain length, such that the stop portion makes more reliable contact with the seating portion when it contacts the seating portion, and a vacuum state can be more effectively prevented by exposing the contact portion to the outside.

[0239] According to the embodiment, the first prevention portion P1 may include 1-1 prevention portion P1-1 and 1-2 prevention portion P1-2 spaced apart in the second direction.

[0240] The first prevention portion P1 may include a 1-1 prevention portion P1-1 and a 1-2 prevention portion P1-2. The 1-1 prevention portion P1-1 and the 1-2 prevention portion P1-2 may be spaced apart from each other. The 1-1 prevention portion P1-1 and the 1-2 prevention portion P1-2 may be arranged parallel to each other and spaced apart. The 1-1 prevention portion P1-1 and the 1-2 prevention portion P1-2 may be spaced apart from each other in a second direction perpendicular to a first direction in which the first prevention portion P1 extends. The 1-1 prevention portion P1-1 and the 1-2 prevention portion P1-2 may extend along the first direction. The 1-1 prevention portion P1-1 and the 1-2 prevention portion P1-2 may each be a groove of a certain depth or a protrusion of a certain height. The first prevention portion P1 may include 1-1 prevention portion P1-1 and 1-2 prevention portion P1-2, such that the multiple prevention portions contact the stop member, which allows the stop member portion to contact the seated portion more reliably when in contact with the seated portion, and to more effectively prevent a vacuum state.

[0241] According to the embodiment, the first prevention portion P1 may include a 1-3 prevention portion P1-3 disposed between the 1-1 prevention portion P1-1 and the 1-2 prevention portion P1-2.

[0242] The first prevention portion P1 may include 1-3 prevention portions P1-3. The 1-3 prevention portions P1-3 may be disposed between the 1-1 prevention portion P1-1 and the 1-2 prevention portion P1-2. The 1-3 prevention portions P1-3 may be configured to be parallel to and spaced apart from the 1-1 and 1-2 prevention portions P1-1 and 1-2. The 1-3 prevention portions P1-3 may be configured to be spaced apart from the 1-1 and 1-2 prevention portions P1-2 in a second direction. The 1-3 prevention portions P1-3 may be configured to extend along a first direction. The first prevention portion P1 may include 1-3 prevention portions P1-3 such that the plurality of prevention portions contact the stop member, which allows the stop member portion to make more reliable contact with the seated portion when in contact with the seated portion, and more effectively prevents a vacuum state.

[0243] According to the embodiment, the first to fourth seating portions A1, A2, A3 and A4 may each include a second prevention portion P2 extending along a second direction perpendicular to the optical axis direction and the first direction.

[0244] The first to fourth seating portions A1, A2, A3, and A4 may each include a second prevention portion P2. The second prevention portion P2 may be included within the prevention portion P. The second prevention portion P2 may be positioned in a direction perpendicular to the optical axis. The second prevention portion P2 may be positioned in a second direction perpendicular to the first prevention portion P1 along its first direction. The second prevention portion P2 may extend along the second direction. The second prevention portion P2 may be configured to extend further along the second direction by a certain length from a portion included in the seating portion. The second prevention portion P2 may be configured to extend further along the second direction by a certain length, such that the stop portion makes more reliable contact with the seating portion when in contact with it, and can more effectively prevent a vacuum state by exposing the contact portion to the outside.

[0245] According to the embodiment, the second prevention portion P2 may include 2-1 prevention portion P2-1 and 2-2 prevention portion P2-2 spaced apart in the first direction.

[0246] The second prevention portion P2 may include prevention portion P2-1 (2-1) and prevention portion P2-2 (2-2). Prevention portion P2-1 and prevention portion P2-2 may be spaced apart from each other. Prevention portion P2-1 and prevention portion P2-2 may be arranged to be parallel to each other and spaced apart. Prevention portion P2-1 and prevention portion P2-2 may be spaced apart in a first direction perpendicular to a second direction in which the second prevention portion P2 extends. Prevention portion P2-1 and prevention portion P2-2 may extend along the second direction. Prevention portion P2-1 and prevention portion P2-2 may each be a groove of a certain depth or a protrusion of a certain height. The second prevention portion P2 may include 2-1 prevention portion P2-1 and 2-2 prevention portion P2-2, such that the multiple prevention portions contact the stop, which allows the stop portion to contact the seat portion more reliably when it contacts the seat portion, and to more effectively prevent a vacuum state.

[0247] Figure 35 yes Figure 33 A magnified view of part of K4. Figure 36 yes Figure 34 A magnified view of part of K5. Figure 37 yes Figure 33 A magnified view of part of K6, and Figure 38 yes Figure 34 A magnified view of part K7 in the image.

[0248] Figure 35 This is a magnified view of the first surface. Figure 36 This is a magnified view of the second surface. Figure 37 It is an enlarged view of the third surface, and Figure 38 This is a magnified view of the fourth surface.

[0249] Reference Figures 35 to 38 According to the embodiment, the first to fourth seating portions A1, A2, A3 and A4 may include an intersecting region I, in which the 1-1 prevention portion P1-1 and the 1-2 prevention portion P1-2 are configured to intersect vertically with the 2-1 prevention portion P2-1 and the 2-2 prevention portion P2-2.

[0250] The first to fourth seating portions A1, A2, A3, and A4 may include an intersecting region I. The intersecting region I may be the internal region where the first prevention portion P1 and the second prevention portion P2 intersect. The intersecting region I may be the internal region at the point where the 1-1 prevention portion P1-1 and 1-2 prevention portion P1-2 intersect with the 2-1 prevention portion P2-1 and 2-2 prevention portion P2-2. The intersecting region I may have a rectangular shape. The width of the intersecting region I in the first direction may be the same as the width d2 in the first direction between the 2-1 prevention portion P2-1 and the 2-2 prevention portion P2-2. The width of the intersecting region I in the second direction may be the same as the width d1 in the second direction between the 1-1 prevention portion P1-1 and the 1-2 prevention portion P1-2. The intersecting region I may be located within the internal portions of the first to fourth seating portions A1, A2, A3, and A4. The intersecting region I may overlap with the first to fourth seating portions A1, A2, A3, and A4 in the optical axis direction. The width of the intersecting region I in the second direction may be less than the width w1 of the first to fourth seating portions A1, A2, A3, and A4 in the second direction. The width of the intersecting region I in the first direction may be less than the width w2 of the first to fourth seating portions A1, A2, A3, and A4 in the first direction. The area of ​​the intersecting region I may be less than the area of ​​the first to fourth seating portions A1, A2, A3, and A4.

[0251] According to the embodiment, the intersecting region I can overlap with the stop portion S in the optical axis direction.

[0252] The intersecting region I can overlap with the stop portion S in the optical axis direction. The intersecting region I can also overlap with the first to fourth seating portions A1, A2, A3, and A4 in the optical axis direction, where the stop portion S contacts the first to fourth surfaces F1, F2, F3, and F4. This overlap of the intersecting region I with the stop portion S in the optical axis direction allows for more stable contact when the stop portion contacts the seating portion, and more effectively prevents vacuum conditions.

[0253] According to the embodiment, the distance d1 between the 1-1 preventing portion P1-1 and the 1-2 preventing portion P1-2 in the second direction can be less than the width w1 of the stop portion in the second direction.

[0254] Since the distance d1 between the 1-1 preventing portion P1-1 and the 1-2 preventing portion P1-2 in the second direction is less than the width w1 between the sitting portion and the stop portion in the second direction, when the stop portion contacts the first to fourth surfaces F1, F2, F3, and F4, the stop portion can overlap with the 1-1 preventing portion P1-1 and the 1-2 preventing portion P1-2 in the optical axis direction. The stop portion can overlap with both the 1-1 preventing portion P1-1 and the 1-2 preventing portion P1-2 to achieve more stable contact and more effectively prevent vacuum conditions. Furthermore, the stop portions can make contact while maintaining balance during contact.

[0255] According to the embodiment, the distance d2 between the 2-1 preventing portion P2-1 and the 2-2 preventing portion P2-2 in the first direction can be less than the width w2 of the stop portion in the first direction.

[0256] Since the distance d2 between the 2-1 preventing portion P2-1 and the 2-2 preventing portion P2-2 in the first direction is less than the width w2 between the sitting portion and the stop portion in the first direction, when the stop portion contacts the first to fourth surfaces F1, F2, F3, and F4, the stop portion can overlap with the 2-1 preventing portion P2-1 and the 2-2 preventing portion P2-2 in the optical axis direction. The stop portion can overlap with both the 2-1 preventing portion P2-1 and the 2-2 preventing portion P2-2, thereby achieving a more stable contact and more effectively preventing a vacuum state. Furthermore, the stop portions can make contact while maintaining balance during contact.

[0257] According to the embodiment, the length l1-1 or l1-2 of the 1-1 prevention portion P1-1 or 1-2 prevention portion P1-2 in the first direction may be shorter than the length l2-1 or l2-2 of the 2-1 prevention portion P2-1 or 2-2 prevention portion P2-2 in the second direction.

[0258] The lengths l1-1 of the 1-1 preventing portion P1-1 and l1-2 of the 1-2 preventing portion P1-2 in the first direction can be the same. The lengths l2-1 of the 2-1 preventing portion P2-1 and l2-2 of the 2-2 preventing portion P2-2 in the second direction can be the same or different. For example, the lengths l2-1 of the 2-1 preventing portion P2-1 and l2-2 of the 2-2 preventing portion P2-2 in the second direction on the first surface F1 can be the same, but the lengths l2-1 of the 2-1 preventing portion P2-1 in the second direction and l2-2 of the 2-2 preventing portion P2-2 in the second direction on the second surface to the fourth surfaces F2, F3, and F4 are different. In the case of the second surface to the fourth surfaces F2, F3, and F4, the length l2-1 of the 2-1 preventing portion P2-1 in the second direction can be shorter than the length l2-2 of the 2-2 preventing portion P2-2 in the second direction.

[0259] The length l1-1 or l1-2 of the 1-1 or 1-2 preventing portion P1-1 in the first direction can be set shorter than the length l2-1 or l2-2 of the 2-1 or 2-2 preventing portion P2-2 in the second direction, such that the sitting portion A and the preventing portion P on which the stop portion sits overlap each other in the optical axis direction. The sitting portion A and the preventing portion P can overlap each other in the optical axis direction, thereby ensuring stable contact and more effectively preventing vacuum conditions.

[0260] According to the embodiment, the distance d3a from the 1-3 prevention portion P1-3 to the 1-1 prevention portion P1-1 in the second direction and the distance d3b from the 1-3 prevention portion P1-3 to the 1-2 prevention portion P-1-2 in the second direction can be the same.

[0261] The 1-3 prevention part P1-3 can be disposed between the 1-1 prevention part P1-1 and the 1-2 prevention part P-1-2. The 1-3 prevention part P1-3 can be disposed parallel to the first-1 prevention part P1-1 and the 1-2 prevention part P-1-2 in a first direction. The distance d3a between the 1-3 prevention part P1-3 and the 1-1 prevention part P1-1 in a second direction can be the same as the distance d3b between the 1-3 prevention part P1-3 and the 1-2 prevention part P-1-2 in a second direction. The 1-3 prevention part P1-3 can be disposed at the same distance in the second direction from the 1-1 prevention part P1-1 and the 1-2 prevention part P-1-2, so that the stop part contacts the seated part in a stable manner and more effectively prevents a vacuum state.

[0262] Figure 39 This is a perspective view of a portable terminal that applies a sensor module according to an implementation method.

[0263] Reference Figure 39 According to the embodiments, the mobile terminal 2500 may include a camera module 2000, a flash module 2530 and an autofocus device 2510 disposed on the rear surface of the mobile terminal 2500.

[0264] The camera module 2000 may include image capture and autofocus functions. For example, the camera module 2000 may include an autofocus function that uses an image.

[0265] The camera module 2000 processes image frames of still or moving images obtained from the image sensor in shooting mode or video call mode.

[0266] The processed image frames can be displayed on a predetermined display unit and stored in memory. A camera (not shown) can also be mounted on the front of the mobile terminal body.

[0267] For example, camera module 2000 may include a first camera module 2000A and a second camera module 2000B, and the OIS function, along with the AF function or zoom function, can be implemented by the first camera module 2000A. Conversely, the AF function, zoom function, and OIS function can be implemented by the second camera module 2000B. In this case, since the first camera module 2000A includes both the OIS actuator and the camera actuator described above, miniaturization of the camera module can be easily achieved by changing the optical path.

[0268] The flash module 2530 may include a light-emitting element therein. The flash module 2530 may be operated by the camera of the mobile terminal or by user control.

[0269] The autofocus device 2510 may include one of the packages in the package of a surface-emitting laser device that serves as a light-emitting unit.

[0270] The autofocus device 2510 may include an autofocus function using a laser. The autofocus device 2510 can be used primarily in conditions where it is difficult to use the autofocus function, such as at a very close range of 10 m or less or in dark environments, where the focusing function uses an image from the camera device 2000.

[0271] The autofocus device 2510 may include: a light emitting unit including a vertical cavity surface emitting laser (VCSEL) semiconductor device; and a light receiving unit, such as a photodiode, which converts light energy into electrical energy.

[0272] Figure 40 This is a perspective view of a vehicle using a sensor module implemented according to the method described.

[0273] For example, Figure 40 It is an external view of a vehicle including a vehicle driving assistance device that applies a camera module according to an embodiment.

[0274] Reference Figure 40 The vehicle 700 in this embodiment may include wheels 13FL and 13FR, which rotate via a power source and predetermined sensors. The sensors may be, but are not limited to, a camera sensor 2000.

[0275] The camera sensor 2000 may be a camera sensor that applies a camera module according to the embodiment. The vehicle 700 in the embodiment can obtain image information by capturing images of the front or surroundings through the camera sensor 2000, and use the image information to determine the lane not being recognized and create a virtual lane when the lane is not recognized.

[0276] For example, camera sensor 2000 can capture images of the front of vehicle 700 to obtain a front image, and processor (not shown) can analyze objects included in the front image to obtain image information.

[0277] For example, when objects such as lanes, adjacent vehicles, traffic obstacles and medians, curbs and roadside trees corresponding to indirect road markings are captured in an image by the camera sensor 2000, the processor can detect these objects and include information about them in the image information. In this case, the processor can obtain distance information of the objects detected by the camera sensor 2000 to further supplement the image information.

[0278] Image information can be information about the objects captured in the image. Camera sensor 2000 may include an image sensor and an image processing module.

[0279] The camera sensor 2000 can process still or moving images obtained by an image sensor (e.g., CMOS or CCD).

[0280] The image processing module can process still or moving images obtained through the image sensor, extract necessary information, and send the extracted information to the processor.

[0281] In this context, although the camera sensor 2000 may include a stereo camera to improve the measurement accuracy of the object and ensure more information, such as the distance between the vehicle 700 and the object, the invention is not limited thereto.

[0282] Although the various embodiments have been primarily described above, these embodiments are merely illustrative and not intended to limit the invention. Those skilled in the art will recognize that various modifications and applications not illustrated herein are possible without departing from the essential characteristics of the invention. For example, modifications and implementations can be made to each of the constituent elements specifically shown in the embodiments. Furthermore, differences related to modifications and applications should be interpreted as being included 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, wherein the first lens assembly and the second lens assembly are configured to move along the optical axis within the housing; A driving unit configured to move the first lens assembly and the second lens assembly; Plate, the plate being disposed within the housing; as well as Driver unit, The housing includes a first side surface and a groove disposed on the outer side of the first side surface. The plate includes a first sub-plate disposed on the first side surface. The driver unit is mounted on the first sub-board and located inside the groove, and At least one side surface of the driver unit is exposed to the outside.

2. The camera actuator according to claim 1, wherein, The groove overlaps with the first sub-plate in a first direction perpendicular to the optical axis.

3. The camera actuator according to claim 2, wherein, The housing includes a second side surface perpendicular to the first side surface, and A portion of the groove is exposed on the second side surface.

4. The camera actuator according to claim 3, wherein, The housing includes a protruding portion that extends along the optical axis on the second side surface.

5. The camera actuator according to claim 4, wherein, The protruding portion is adjacent to the first side surface, and The first sub-plate extends along the optical axis and overlaps with the protruding portion in the first direction.

6. The camera actuator according to claim 5, wherein, The groove extends toward the protruding portion in the direction of the optical axis. The protruding portion includes a first surface parallel to the second side surface, and At least one side surface of the groove is disposed on the first surface.

7. The camera actuator according to claim 4, wherein, A portion of the driver unit is configured to overlap with the protruding portion in the first direction.

8. The camera actuator according to claim 4, wherein, The width of the groove in the optical axis direction is greater than the width of the protrusion in the optical axis direction.

9. The camera actuator according to claim 4, wherein, The width of the groove in the first direction is greater than the width of the driver unit in the first direction.

10. The camera actuator according to claim 4, wherein, The width of the protruding portion in the second direction perpendicular to both the optical axis and the first direction is the same as the width of the first side surface in the second direction, and The width of the groove in the second direction is less than the width of the protrusion and the width of the first side surface in the second direction.

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