Camera module

Abstract

A camera module according to an embodiment of the present invention comprises a first camera actuator and a second camera actuator and a lens assembly coupled to the first camera actuator. The lens assembly comprises: a lens group including at least one lens disposed in a first direction parallel to the optical axis of incident light incident on the first camera actuator; a barrel unit surrounding the lens unit; and a retainer disposed in an end region of the barrel unit in the first direction. An adhesive member is disposed between the retainer and the barrel unit. The retainer includes a body and a first protrusion protruding from the body toward the barrel unit. The barrel unit includes a recessed portion in which the first protrusion is disposed, and at least a portion of the outer surface of the barrel unit, which is adjacent to the first camera actuator in the first direction, has an inclined surface inclined with respect to the first direction.

Description

Camera module

[0001] The present invention relates to a camera module.

[0002] A camera is a device that captures a subject in photos or videos, and it is mounted on portable devices, drones, vehicles, etc.

[0003] A camera device or camera module may have an Image Stabilization (IS) function that corrects or prevents shaking caused by user movement to improve image quality, an Auto Focusing (AF) function that automatically adjusts the distance between the image sensor and the lens to align the focal length of the lens, and a zooming function that increases or decreases the magnification of a distant subject through a zoom lens to take a picture.

[0004] In the case of a camera module used in a portable terminal, an incident light can be refracted toward the image sensor by utilizing a camera actuator equipped with Optical Image Stabilization (OIS).

[0005] However, there was a problem in that the lens assembly coupled to a camera actuator with image stabilization capabilities had a portion exposed to the outside, allowing the aforementioned defects to be easily detected through the exposed portion, such as when the adhesive member of the lens assembly is exposed, when the retainer securing the lens group is twisted during coupling, or when the retainer detaches due to a weakened bonding force between the retainer and the barrel. Since such problems are easily detected, the lens assembly may require high precision.

[0006] The present invention is an invention devised to solve the problems of the aforementioned prior art, and has the objective of preventing the adhesive member from being exposed to the outside and the retainer from twisting during the assembly process.

[0007] The problems that the present invention aims to solve are not limited to those mentioned above, and other problems not mentioned herein will be clearly understood by those skilled in the art from the description below.

[0008] A camera module according to an embodiment of the present invention for achieving the above-described purpose comprises a first camera actuator, a second camera actuator, and a lens assembly coupled to the first camera actuator. The lens assembly comprises a lens group including at least one lens arranged in a first direction parallel to the optical axis of incident light incident on the first camera actuator, a barrel portion surrounding the lens group, and a retainer arranged in an end region of the barrel portion in the first direction. An adhesive member is disposed between the retainer and the barrel portion. The retainer comprises a body and a first protrusion protruding from the body toward the barrel portion. The barrel portion comprises a recess where the first protrusion is arranged. The barrel portion has an inclined surface formed on at least a portion of an outer surface adjacent to the first camera actuator in the first direction, which is inclined toward the first direction.

[0009] According to the present embodiment, the first protrusion may include a first surface positioned facing the recess and the first direction, and a pair of second surfaces connected to the first surface and the body and positioned in the circumferential direction of the barrel portion.

[0010] According to the present embodiment, the recess may include a third surface positioned facing the first surface and a pair of fourth surfaces positioned facing each of the pair of second surfaces.

[0011] According to the present embodiment, the pair of second surfaces may be formed at an angle with respect to the first direction, and the pair of fourth surfaces may be formed at an angle with respect to the first direction so as to correspond to the angle of the second surfaces.

[0012] According to the present embodiment, the barrel portion further includes a fifth surface arranged to face the body in the first direction, and the adhesive member may be disposed in at least a portion of the first area between the first surface and the third surface, the second area between the second surface and the fourth surface, and the third area between the body and the fifth surface.

[0013] According to the present embodiment, the first protrusion and the recess are a plurality of times, and the plurality of the first protrusions and the plurality of the recesses may be spaced apart from each other along the circumferential direction of the barrel portion.

[0014] According to the present embodiment, the body includes a second protrusion that protrudes toward the first camera actuator in the first direction, and the second protrusion may be positioned to face the inner surface of the barrel portion in a direction perpendicular to the first direction.

[0015] According to the present embodiment, the adhesive member may be disposed in a fourth region between the second protrusion and the inner surface of the barrel portion in a direction perpendicular to the first direction.

[0016] According to the present embodiment, the body may overlap at least a portion with the adhesive member in the first direction.

[0017] According to the present embodiment, the inclined surface may be formed such that the outer surface relatively adjacent to the first camera actuator and the second camera actuator is inclined with respect to the first direction.

[0018] According to the present embodiment, the first camera actuator refracts or reflects incident light incident in the first direction toward the second camera actuator in a second direction, and is tilted with respect to at least one of the first direction, the second direction, and the third direction, and the third direction may be perpendicular to the first direction and the second direction.

[0019] According to the present embodiment, when the first camera actuator is tilted with respect to the third direction, the inclined surface may not come into contact with the second camera actuator.

[0020] According to the present embodiment, the first camera actuator may include an optical member that refracts or reflects incident light incident in the first direction toward the second camera actuator in a second direction, and a holder on which the optical member is disposed.

[0021] According to the present embodiment, the lens assembly further includes an extension extending in a direction perpendicular to the first direction at an end region of the inclined surface in the first direction, and the extension may be coupled to the holder.

[0022] According to the present embodiment, the extension may extend in a third direction perpendicular to the first direction and the second direction toward the second camera actuator from the first camera actuator.

[0023] A camera module according to an embodiment of the present invention for solving the above problem may have the effect of preventing the adhesive member from being exposed to the outside and the retainer from being twisted during the assembly process.

[0024] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims.

[0025] In addition, the effects of the present invention may be described in more detail in the detailed description of the present invention and are not necessarily limited to those presented above.

[0026] The summary described above, as well as the detailed description of the preferred embodiments of the present application described below, will be better understood when read in conjunction with the accompanying drawings.

[0027] Preferred embodiments are illustrated in the drawings for the purpose of illustrating the present invention.

[0028] However, it should be understood that the present application is not limited to the exact arrangement and means depicted.

[0029] FIG. 1 is a drawing illustrated for the overall explanation of a camera module according to an embodiment of the present invention;

[0030] FIG. 2 is a cross-sectional view of a camera module according to an embodiment of the present invention;

[0031] FIG. 3 is a drawing illustrating a lens assembly of a camera module according to an embodiment of the present invention;

[0032] FIG. 4 is a drawing illustrating a retainer of a camera module according to an embodiment of the present invention;

[0033] FIG. 5 is a drawing illustrating the protrusions and depressions of a camera module according to an embodiment of the present invention;

[0034] FIG. 6 is a drawing illustrating the A'A" cross-section of a camera module according to an embodiment of the present invention;

[0035] FIG. 7 is a drawing illustrating a cross-section B'B" of a camera module according to an embodiment of the present invention;

[0036] FIG. 8 is a drawing illustrating an inclined surface of a camera module according to an embodiment of the present invention;

[0037] FIG. 9 is a drawing illustrating an extension of a camera module according to an embodiment of the present invention; and

[0038] FIG. 10 is a drawing illustrating the combination of a first camera actuator and a lens assembly of a camera module according to an embodiment of the present invention.

[0039] The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated and described in the drawings. However, this is not intended to limit the invention to specific embodiments, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0040] Terms including ordinal numbers, such as second, first, etc., may be used to describe various components, but the components are not limited by the terms. The terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be named the first component, and similarly, the first component may be named the second component. The term "and / or" includes a combination of a plurality of related described items or any of a plurality of related described items.

[0041] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0042] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to specify the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0043] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0044] Hereinafter, embodiments will be described in detail with reference to the attached drawings, provided that identical or corresponding components are given the same reference number regardless of the drawing symbols, and redundant descriptions thereof will be omitted.

[0045] Furthermore, when describing objects as "identical" or "similar" based on numerically or geometrically comparable properties such as length, inner diameter, diameter, or area, this may imply that there is a margin of error. For example, if it is stated that the lengths of components A and B are identical, it may be advisable to interpret this to mean that the length of B falls within the margin of error of the length of A. This takes into account the margin of error that occurs during the injection molding and manufacturing processes; since this is a matter that can occur physically and is self-evident, it is advisable to understand the description as "identical" or "similar" by considering the margin of error as described above. In this case, the margin of error may be within the range of -5% to +5% of the mentioned numerical value or shape, but this is merely an example of the margin of error and may not necessarily be limited to the stated range.

[0046] A preferred embodiment of the present invention, in which the objective of the present invention can be specifically realized, will be described below with reference to the attached FIGS. 1 to 10.

[0047] Specifically, FIG. 1 is a drawing illustrating an overall description of a camera module according to an embodiment of the present invention, FIG. 2 is a drawing illustrating a cross-sectional view of a camera module according to an embodiment of the present invention, FIG. 3 is a drawing illustrating a lens assembly of a camera module according to an embodiment of the present invention, FIG. 4 is a drawing illustrating a retainer of a camera module according to an embodiment of the present invention, FIG. 5 is a drawing illustrating a protrusion and a recess of a camera module according to an embodiment of the present invention, FIG. 6 is a drawing illustrating an A'A" cross-section of a camera module according to an embodiment of the present invention, FIG. 7 is a drawing illustrating an B'B" cross-section of a camera module according to an embodiment of the present invention, FIG. 8 is a drawing illustrating an inclined surface of a camera module according to an embodiment of the present invention, FIG. 9 is a drawing illustrating an extension of a camera module according to an embodiment of the present invention, and FIG. 10 is a drawing illustrating the combination of a first camera actuator and a lens assembly of a camera module according to an embodiment of the present invention.

[0048] First, a camera module according to an embodiment of the present invention includes a first camera actuator (100), a second camera actuator (200), and a lens assembly (300), and may additionally include a cover (not shown) and a substrate (400).

[0049] At this time, prior to specifically describing the camera module according to the embodiment of the present invention, the first direction, the second direction, and the third direction are specifically defined as follows: the first direction is a direction parallel to the optical axis through which light is incident toward the first camera actuator (100); the second direction is a direction parallel to the optical axis of the refracted light that is refracted from the light incident on the first camera actuator (100) and directed toward the image sensor; and the third direction may be a direction perpendicular to the first direction and the second direction.

[0050] Specifically, based on FIG. 1, the first direction refers to a two-way direction including a direction from the upper side to the lower side and a direction from the lower side to the upper side, the second direction refers to a two-way direction including a direction from the upper left to the lower right and a direction from the lower right to the upper left, and the third direction may refer to a two-way direction including a direction from the lower left to the upper right and a direction from the upper right to the lower left.

[0051] In addition, in order to distinguish between the lens assembly (300) coupled to the first camera actuator (100) and the lens assembly placed on the second camera actuator (200) in the process of describing the camera module according to the embodiment of the present invention, the lens assembly (300) coupled to the first camera actuator (100) is defined as the first lens assembly (300), and the lens assembly placed on the second camera actuator (200) is defined as the second lens assembly. Furthermore, the lens group (310) and the barrel portion (320) of the first lens assembly (300) are defined as the first lens group (310) and the first barrel portion (320), and the lens group and the barrel portion of the second lens assembly are defined as the second lens group and the second barrel portion. This is intended only to prevent misinterpretation in the process of describing the camera module according to the embodiment of the present invention, and should not be interpreted as being limited to the first and second presented.

[0052] Based on this, a camera module according to an embodiment of the present invention is described with reference to FIGS. 1 and 2. First, a cover (not shown) forms an internal space, and a first lens assembly (300), a first camera actuator (100), a second camera actuator (200), and a part of a substrate (400) may be disposed in the internal space. The coupling force between the first camera actuator (100) and the second camera actuator (200) can be improved through the cover (not shown).

[0053] Furthermore, the cover (not shown) may be made of a material that performs electromagnetic wave shielding. Accordingly, the first camera actuator (100) and the second camera actuator (200) placed in the internal space formed by the cover (not shown) can be easily protected.

[0054] In addition, the first camera actuator (100) may be an OIS (Optical Image Stabilizer) actuator. For example, the first camera actuator (100) may move the optical member (110) in a direction perpendicular to the optical axis of the refracted light.

[0055] Additionally, the first camera actuator (100) can change the path of light. For example, the first camera actuator (100) can change the light path vertically through an internal optical element (110) (e.g., a prism or a mirror). For example, the light path can be changed from a first direction to a second direction. With this configuration, even if the thickness of the mobile terminal is reduced, a lens configuration larger than the thickness of the mobile terminal can be placed within the mobile terminal through the change of the light path, thereby enabling magnification, zoom, and OIS functions. Here, the magnification, zoom, and OIS functions are merely illustrative descriptions and should not be interpreted as being limited to what is mentioned. Furthermore, although it has been described that the first camera actuator (100) changes the light path from a first direction to a second direction, the light path may also be changed multiple times or at a predetermined angle.

[0056] The second camera actuator (200) may be positioned at one end of the first camera actuator (100). The second camera actuator (200) may be coupled with the first camera actuator (100). And the coupling between them may be achieved in various ways.

[0057] Additionally, the second camera actuator (200) may be a zoom actuator that adjusts the magnification. For example, the second camera actuator (200) supports one or more lenses and can perform a zoom function by moving the lenses according to a control signal from a predetermined control unit. Additionally, one or more lenses may be moved independently or individually along a first direction.

[0058] The circuit board (400) can be coupled to the second camera actuator (200). The circuit board (400) can be electrically connected to the second camera actuator (200) and the first camera actuator (100). Additionally, there may be multiple circuit boards (400).

[0059] The camera module according to the embodiment may consist of a single or multiple camera modules. For example, the multiple camera modules may include a first camera module and a second camera module.

[0060] And a single camera module may include a single or multiple actuators. For example, a single camera module may include a first camera actuator (100) and a second camera actuator (200). Furthermore, the term camera module may be used interchangeably with various terms such as camera device, imaging device, etc.

[0061] Meanwhile, light can pass through the first lens assembly (300) through an opening formed on one side of the first camera actuator (100) and enter the first camera actuator (100). That is, light enters the interior of the first camera actuator (100) along the first direction, and the light path can be changed to the second direction through the optical member (110). Then, light passes through the second camera actuator (200) and can enter an image sensor disposed at the end of the second camera actuator (200).

[0062] Additionally, in this specification, the inner side may be the direction facing from the outside toward the internal space of the cover (not shown), and the outer side may be the opposite direction to the inner side. For example, the first camera actuator (100) and the second camera actuator (200) may be located on the inner side formed by the cover, and the cover (not shown) may be located on the outer side of the first camera actuator (100) or the second camera actuator (200). Here, since the cover (not shown) is not specifically disclosed in the drawings for explaining the camera module according to the embodiment of the present invention, if described based on the illustrated first lens assembly (300), the direction facing from the outside toward the inner lens of the first lens assembly (300) may be the inner side, and the direction facing from the inner lens of the first lens assembly (300) toward the outside may be the outer side.

[0063] The camera module according to the embodiment can improve the spatial limitations of the first camera actuator (100) and the second camera actuator (200) by changing the light path. The camera module according to the embodiment can expand the light path while minimizing the thickness of the camera module in response to the change in the light path. Furthermore, it should be understood that the second camera actuator (200) may provide a high range of magnification by controlling the focus, etc., in the expanded light path.

[0064] In addition, the camera module according to the embodiment can implement OIS by controlling the optical path through the first camera actuator (100), thereby minimizing the occurrence of decentering or tilting phenomena and producing optimal optical characteristics.

[0065] Furthermore, the second camera actuator (200) may include a second lens assembly comprising a second lens group in which a plurality of lenses are arranged, and a driving module for moving the second lens assembly in a first direction.

[0066] To describe the second camera actuator (200) according to an embodiment of the present invention based on the above description, the second camera actuator (200) according to an embodiment of the present invention includes a housing, a second lens assembly, and a driving module.

[0067] Here, the housing may include a first space (S1) where a second lens assembly is placed, a second space (S2) where an image sensor is placed, and a third space (S3) where a control unit is placed. Additionally, a hole (not shown) through which light travels is formed between the first space (S1) and the second space (S2), and the third space (S3) may be arranged separately from the first space (S1) and the second space (S2). Furthermore, the third space (S3) and the image sensor are arranged to overlap in a third direction, and accordingly, at least a portion of the control unit may overlap in the third direction. This is merely an example of the second camera actuator (200) and is not necessarily limited to what is mentioned.

[0068] Meanwhile, the second lens assembly is placed within the housing and moved in a first direction parallel to the optical axis of the refracted light. Here, the second lens assembly is placed in the first space (S1) of the housing described above, and the second lens assembly may include a second lens group comprising a plurality of lenses arranged in the first direction, and a second barrel portion surrounding the second lens group.

[0069] Additionally, the driving module is positioned facing the second lens assembly inside the housing and moves the second lens assembly in a first direction. Specifically, the driving module may be positioned facing the second lens assembly in a second direction within the first space (S1) of the housing.

[0070] Meanwhile, to specifically describe the first lens assembly (300) of the camera module according to an embodiment of the present invention, reference may be made to FIGS. 3 to 10.

[0071] First, as illustrated in FIG. 3, the first lens assembly (300) of the camera module according to an embodiment of the present invention may include a first lens group (310), a first barrel portion (320), a retainer (330), and an extension portion (340).

[0072] Here, the first lens group (310) may include at least one lens arranged in a first direction. That is, the first lens group (310) may be a plurality of lenses arranged in a first direction. When two or more lenses of the first lens group (310) are arranged in the first direction, a spacer may be placed between one lens and another lens. The spacer can separate one lens and another lens from each other to secure a gap in the first direction between one lens and another lens. Light incident on the camera module according to an embodiment of the present invention may pass through the first lens group (310) and be incident on the first camera actuator (100).

[0073] The first barrel portion (320) may be positioned to surround the first lens group (310). Specifically, the inner surface of the first barrel portion (320) may be positioned to be in contact with at least one lens. The first barrel portion (320) has a through hole formed on its inner side that penetrates in a first direction, and at least one lens of the first lens group (310) may be arranged in the first direction within the aforementioned through hole. Additionally, as will be explained in detail through the drawings to be described later, the second barrel portion has an inclined surface (322) formed on at least a portion of its outer surface adjacent to the first camera actuator (100) in the first direction, which is inclined with respect to the first direction.

[0074] The retainer (330) is positioned in the end area of ​​the first barrel section (320) in the first direction. Here, the end area of ​​the first barrel section (320) where the retainer (330) is positioned may be an end area opposite to the direction facing the first camera actuator (100) in the first direction. The retainer (330) is coupled to the barrel section, fixes the first lens group (310), and can prevent the first lens group (310) from detaching in the first direction. The retainer (330) will be described in more detail through the drawings to be described later.

[0075] The extension portion (340) extends in a direction perpendicular to the first direction at the end region of the inclined surface (322) in the first direction, and the extension portion (340) can be coupled to the first camera actuator (100). At this time, the extension portion (340) can be extended in a third direction. The first camera actuator (100) may have a holder (120) formed therein for coupling with the extension portion (340), and the extension portion (340) can be coupled to the holder (120). Here, the extension portion (340) may be coupled to the holder (120) by utilizing an adhesive member (E) or by various methods such as screw coupling, and may not be limited to those mentioned.

[0076] Meanwhile, to specifically describe the retainer (330) according to an embodiment of the present invention, refer to FIG. 4. As shown in FIG. 4, the retainer (330) may have a body (331), a first protrusion (332), a second protrusion (333), and an open hole (334) formed therein.

[0077] Here, the body (331) may overlap with the first barrel portion (320) in the first direction. The first protrusion (332) may protrude from the body (331) in the first direction toward the first barrel portion (320), and the second protrusion (333) may also protrude from the body (331) in the first direction toward the first barrel portion (320). At this time, the first protrusion (332) may be positioned relatively outward from the second protrusion (333) in a direction perpendicular to the first direction. That is, in a direction perpendicular to the first direction, the second protrusion (333) may be positioned relatively inward, and the first protrusion (332) may be positioned relatively outward. Additionally, multiple first protrusions (332) may be formed, and the second protrusion (333) may be formed along the perimeter of the bottom surface of the body (331). That is, the second protrusion (333) may be one. However, this is merely an exemplary description of the camera module according to an embodiment of the present invention, and the second protrusion (333) may also be multiple, and is not necessarily limited thereto.

[0078] Meanwhile, the opening hole (334) is formed by penetrating the body (331) in a first direction, and the opening hole (334) may be positioned facing the first lens group (310). At this time, the inner surface of the opening hole (334) may have the same meaning as the inner surface of the body (331) or the inner surface of the second protrusion (333). Specifically, the opening hole (334) includes a first part and a second part positioned in the first direction, the first part being an area that overlaps with the body (331) in a direction perpendicular to the first direction, and the second part being an area that overlaps with the second protrusion (333) in a direction perpendicular to the first direction. However, this is merely to explain the opening hole (334) of the camera module according to an embodiment of the present invention more specifically, and is not necessarily limited thereto.

[0079] Refer to FIGS. 5 to 7 to explain the specific combination form of the retainer and the first barrel part (320) based on the configuration of the retainer (330) described above.

[0080] First, as illustrated in FIG. 5, the first barrel portion (320) includes a recess where a first protrusion (332) is positioned, and the first protrusion (332) may include a first surface (332a) positioned facing the recess in a first direction and a pair of second surfaces (332b) connected to the first surface (332a) and the body (331) and positioned in the circumferential direction of the first barrel portion (320). Additionally, the recess may include a third surface (321a) positioned facing the first surface (332a) in a first direction and a pair of fourth surfaces (321b) positioned facing each of the pair of second surfaces (332b). Here, the first barrel portion (320) further includes a fifth surface (320a) positioned to face the body (331) in a first direction, and the body (331) may further include a sixth surface (331a) positioned to face the fifth surface (320a) in a first direction.

[0081] That is, the first surface (332a) and the third surface (321a) are arranged to face each other in the first direction, a pair of second surfaces (332b) and a pair of fourth surfaces (321b) are arranged to face each other, and the fifth surface (320a) and the sixth surface (331a) can be arranged to face each other in the first direction.

[0082] Here, an adhesive member (E) may be disposed in at least a portion of the first space (S1) between the first surface (332a) and the third surface (321a), the second space (S2) between the second surface (332b) and the fourth surface (321b), and the third space (S3) between the fifth surface (320a) and the sixth surface (331a). That is, the first surface (332a) and the third surface (321a) are spaced apart by a predetermined distance in the first direction, the second surface (332b) and the fourth surface (321b) are also spaced apart by a predetermined distance, and the fifth surface (320a) and the sixth surface (331a) are also spaced apart by a predetermined distance in the first direction. At this time, the space between the first surface (332a) and the third surface (321a) may be the first space (S1), the space between the second surface (332b) and the fourth surface (321b) may be the second space (S2), and the space between the fifth surface (320a) and the sixth surface (331a) may be the third space (S3). The first space (S1), the second space (S2), and the third space (S3) may be arranged to overlap with the body (331) in the first direction. Accordingly, the adhesive member (E) placed in at least a part of the first space (S1), the second space (S2), and the third space (S3) may not be exposed to the outside in the first direction. Alternatively, the body (331) may have at least a portion of it overlapping with the adhesive member (E) in the first direction, and the adhesive member (E) may be positioned to overlap with the body (331) in the first direction so that the adhesive member (E) is not exposed to the outside. Here, the adhesive member (E) may be epoxy. However, this is merely illustrative and should not be interpreted as being limited to what is stated.

[0083] Additionally, the area where the adhesive member (E) can be placed is increased through the first surface (332a) and second surface (332b) of the first protrusion (332) and the third surface (321a) and fourth surface (321b) of the recess, thereby effectively securing the bonding force between the retainer (330) and the first barrel part (320). Furthermore, during the process of bonding the retainer (330) and the first barrel part (320), the recess and the first protrusion (332) can prevent the retainer from being twisted during bonding. Specifically, if the retainer is twisted, the second surface (332b) and the fourth surface (321b) come into contact with each other to limit the twisting of the retainer.

[0084] Here, a pair of second surfaces (332b) may be formed at an angle with respect to the first direction, and a pair of fourth surfaces (321b) may be formed at an angle with respect to the first direction corresponding to the angle of the second surfaces (332b). When the second surfaces (332b) and the fourth surfaces (321b) formed at an angle in this manner come into contact with each other, the impact applied to the second surfaces (332b) and the fourth surfaces (321b) according to the rotational force of the retainer (330) is dispersed, thereby effectively preventing damage to the retainer (330) and the first barrel portion (320).

[0085] Additionally, referring to FIGS. 3 and 4, there may be multiple first protrusions (332) and multiple recesses. Furthermore, multiple first protrusions (332) may be spaced apart from each other along the circumferential direction of the body (331), and multiple recesses may be spaced apart from each other along the circumferential direction of the first barrel part (320). This may be to maintain the function of preventing the retainer from being twisted and coupled with the first barrel part (320) by the first protrusions (332) and the recesses, unlike the second protrusions (333).

[0086] Meanwhile, to specifically explain the arrangement of the adhesive member (E), the adhesive member (E) may be placed in the space between the first surface (332a) and the second surface (332b), as shown in FIG. 6, which illustrates the A'A" cross-section of FIG. 3. Additionally, the second protrusion (333) may be positioned so that at least a portion of it faces the inner surface of the first barrel portion (320) in a direction perpendicular to the first direction, and the second protrusion (333) and the inner surface of the first barrel portion (320) may be spaced apart by a predetermined distance in a direction perpendicular to the first direction to form a fourth space (S4). At this time, the fourth space (S4) may be formed along at least a portion of the outer surface (333a) of the second protrusion (333). Alternatively, the fourth space (S4) may be formed along the circumferential direction of the body (331) on at least a portion of the outer surface (333a) of the second protrusion (333). there is.

[0087] Here, the second protrusion (333) may include an area facing the first space (S1) in a direction perpendicular to the first direction and an area facing the inner surface of the first barrel portion (320) in a direction perpendicular to the first direction. That is, the fourth space (S4) formed on the outer surface (333a) of the second protrusion (333) may be formed on a part of the outer surface (333a) of the second protrusion (333) in the first direction.

[0088] In this way, as the adhesive member (E) is placed in the first space (S1), second space (S2), third space (S3), and fourth space (S4), the bonding strength between the first barrel part (320) and the retainer (330) can be effectively improved.

[0089] Meanwhile, referring to FIG. 7, which illustrates the B'B" cross-section of FIG. 3 to explain the placement of the adhesive portion in the area where the first protrusion (332) and the recess are not formed, as shown in FIG. 7, an adhesive member (E) is placed in the third space (S3) between the fifth surface (320a) and the sixth surface (331a), and the adhesive member (E) may be placed only on a part of the outer surface (333a) of the second protrusion (333). Additionally, the outer surface (333a) of the second protrusion (333) and the inner surface (323) of the first barrel portion (320) may come into contact with each other. Here, if the surface where the second protrusion (333) contacts the first barrel portion (320) is defined as the first contact surface, and the surface where the first barrel portion (320) contacts the second protrusion (333) is defined as the second contact surface (323), then the first contact and the second An adhesive member (E) may be placed between the contact surfaces (323). That is, a fourth space (S4) may not be formed. However, this is only the relationship between the outer surface (333a) of the first protrusion (332) parallel to the first direction and the inner surface of the first barrel part (320). As shown in FIG. 7, a portion of the end area in the first direction of the first barrel part (320) may be spaced apart from the outer surface (333a) of the second protrusion (333) in a direction perpendicular to the first direction to form a spaced-away space. Accordingly, the adhesive member (E) is applied over the entire area, so that the bonding strength between the first barrel part (320) and the retainer (330) can be effectively improved.

[0090] Meanwhile, as illustrated in FIG. 8, the first lens assembly (300) coupled to the first camera actuator (100) is such that as the optical member (110) of the first camera actuator (100) is tilted, the first barrel portion (320) moves closer to the second camera actuator (200). To prevent the first barrel portion (320) from colliding with the second camera actuator (200), an inclined surface (322) may be formed on at least a portion of the outer surface of the first barrel portion (320) adjacent to the first camera actuator (100) in a first direction. Through the inclined surface (322), even if the optical member (110) of the first camera actuator (100) is tilted, a collision between the first lens assembly (300) and the second camera actuator (200) can be prevented.

[0091] As illustrated in FIG. 9, the extension portion (340) extends in a direction perpendicular to the first direction from the end area of ​​the inclined surface (322) in the first direction, and specifically, it may extend in a third direction. Here, if the extension portion (340) extends in the second direction, the optical member (110) of the first camera actuator (100) may collide with the second camera actuator (200) while tilting, so it may be preferable for the extension portion (340) to extend in the third direction from the end area of ​​the inclined surface (322) in the first direction. Additionally, as illustrated in FIG. 10, the extension portion (340) includes a first wing portion (341) and a second wing portion (342) that extend in the third direction, and the first wing portion (341) and the second wing portion (342) may be spaced apart in the third direction. That is, the first wing portion (341) and the second wing portion (342) may not come into contact with each other. The first camera actuator (100) includes a holder (120) that is coupled to the first wing portion (341) and the second wing portion (342), and the first wing portion (341) and the holder (120) and the second wing portion (342) and the holder (120) may be coupled to each other through an adhesive member (E), a bolt, etc. Additionally, the first wing portion (341) and the second wing portion (342) may partially overlap with the optical member (110) in a first direction. However, this is merely an exemplary description and is not necessarily limited to what is mentioned.

[0092] We have examined preferred embodiments according to the invention, and it is obvious to those skilled in the art that, in addition to the embodiments described above, the invention may be embodied in other specific forms without departing from the spirit or scope thereof.

[0093] Therefore, the embodiments described above should be regarded as exemplary rather than limiting, and accordingly, the present invention is not limited to the description above but may be modified within the scope of the appended claims and their equivalents.

Claims

1. A first camera actuator and a second camera actuator; and It includes a lens assembly coupled to the first camera actuator, and The above lens assembly is, A lens group comprising at least one lens arranged in a first direction parallel to the optical axis of the incident light incident on the first camera actuator; A barrel portion surrounding the above lens group; and It includes a retainer disposed in the end region of the barrel portion in the first direction, and An adhesive member is disposed between the retainer and the barrel portion, and The above retainer includes a body and a first protrusion that protrudes from the body toward the barrel portion, and The barrel portion includes a recess where the first protrusion is disposed, The above barrel portion is a camera module in which at least a portion of the outer surface adjacent to the first camera actuator in the first direction is formed with an inclined surface having an inclination with respect to the first direction.

2. In Paragraph 1, The first protrusion mentioned above is, A first surface disposed facing the above-mentioned depression and the above-mentioned first direction; and A camera module comprising a pair of second surfaces connected to the first surface and the body, arranged in the circumferential direction of the barrel portion.

3. In Paragraph 2, The above-mentioned depression is, A third surface positioned facing the first surface; and A camera module comprising a pair of fourth faces positioned facing each of the pair of second faces.

4. In Paragraph 3, The barrel portion further includes a fifth surface arranged to face the body in the first direction, and A camera module in which the adhesive member is disposed in at least a portion of the first region between the first surface and the third surface, the second region between the second surface and the fourth surface, and the third region between the body and the fifth surface.

5. In Paragraph 1, The first protrusion and the depression are a plurality of times, and A camera module in which a plurality of the first protrusions and a plurality of the recesses are spaced apart from each other along the circumferential direction of the barrel portion.

6. In Paragraph 5, The body includes a second protrusion that protrudes toward the first camera actuator in the first direction, and the second protrusion is positioned to face the inner surface of the barrel portion in a direction perpendicular to the first direction, forming a camera module.

7. In Paragraph 6, A camera module in which the adhesive member is disposed in a fourth region between the second protrusion and the inner surface of the barrel portion in a direction perpendicular to the first direction.

8. In Paragraph 1, The above inclined surface is a camera module formed such that the outer surface adjacent to the first camera actuator and the second camera actuator is inclined with respect to the first direction.

9. In Paragraph 8, The first camera actuator refracts or reflects incident light incident in the first direction toward the second camera actuator in a second direction, and It is tilted based on at least one of the first direction, the second direction, and the third direction, and The third direction is a camera module perpendicular to the first direction and the second direction.

10. In Paragraph 9, A camera module in which the inclined surface does not come into contact with the second camera actuator when the first camera actuator is tilted with respect to the third direction.

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