Camera module and manufacturing method therefor

Abstract

This camera module comprises: a holder including a first barrel portion, a second barrel portion, and a third barrel portion; a first lens module coupled to the first barrel portion and including a first flange; a second lens module coupled to the second barrel portion and including a second flange; a third lens module coupled to the third barrel portion and including a third flange; a housing disposed at the rear of the holder; a first substrate module disposed in a space within the housing and facing the first lens module in the optical axis direction; a second substrate module disposed in the space within the housing and facing the second lens module in the optical axis direction; a third substrate module disposed in the space within the housing and facing the third lens module in the optical axis direction; first adhesive members disposed between the holder and the first substrate module, between the holder and the second substrate module, and between the holder and the third substrate module; and second adhesive members disposed between the first flange and the first barrel portion, between the second flange and the second barrel portion, and between the third flange and the third barrel portion.

Description

Camera module and manufacturing method thereof

[0001] The present embodiment relates to a camera module and a method for manufacturing the same.

[0002]

[0003] Recently, ultra-small camera modules have been developed and are widely used in small electronic products such as smartphones, laptops, and game consoles.

[0004] As automobiles become more widespread, miniature cameras are increasingly being used not only in small electronic devices but also in vehicles. Examples include black box cameras for vehicle protection or to collect objective data on traffic accidents, rearview cameras that allow drivers to monitor blind spots at the rear of the vehicle, ensuring safety when backing up, and perimeter cameras that monitor the vehicle's surroundings.

[0005] A camera includes a lens, a lens barrel that accommodates the lens, an image sensor that converts an image of a subject captured by the lens into an electrical signal, and a printed circuit board on which the image sensor is mounted. The housing, which forms the exterior of the camera, is constructed with a sealed structure throughout to prevent contamination of internal components with foreign substances, including moisture.

[0006] Camera modules according to conventional technology have a problem in that satisfactory images cannot be obtained because the mechanical axis and optical axis are not precisely aligned during the assembly process between the lens and the holder.

[0007]

[0008] The present embodiment provides a camera module capable of obtaining optimal images by precisely aligning a lens, a holder, and a substrate without error.

[0009]

[0010] A camera module according to the present embodiment comprises: a holder including a first barrel portion, a second barrel portion, and a third barrel portion; a first lens module coupled to the first barrel portion and including a first flange; a second lens module coupled to the second barrel portion and including a second flange; a third lens module coupled to the third barrel portion and including a third flange; a housing disposed at the rear of the holder; a first substrate module disposed in a space within the housing and facing the first lens module in an optical axis direction; a second substrate module disposed in a space within the housing and facing the second lens module in an optical axis direction; a third substrate module disposed in a space within the housing and facing the third lens module in an optical axis direction; a first adhesive member disposed between the holder and the first substrate module, the holder and the second substrate module, and the holder and the third substrate module; And it includes a second adhesive member disposed between the first flange and the first barrel part, the second flange and the second barrel part, and the third flange and the third barrel part.

[0011] The first adhesive member and the second adhesive member may each be epoxy.

[0012] The rear surface of the holder may include a guide that protrudes rearward and is coupled to the front surface of the first substrate module, the front surface of the second substrate module, and the front surface of the third substrate module.

[0013] Each of the first substrate module, the second substrate module, and the third substrate module may include a first substrate having an image sensor disposed on the front; a second substrate disposed on the rear of the first substrate; a connection substrate connecting the first substrate and the second substrate; and a shield can disposed between the first substrate and the second substrate.

[0014] The protrusion heights of the first to third barrel portions from the front of the holder may be different from each other.

[0015] The front surfaces of the first to third lens modules may be arranged with a step in the optical axis direction.

[0016] The first adhesive member and the second adhesive member may each have a closed loop shape.

[0017] The second substrate may include a connector protruding rearward from the rear surface, and the housing may include a connector extraction portion protruding rearward from the rear surface and receiving the connector on the inside.

[0018] A method for manufacturing a camera module according to the present embodiment includes: (a) a step of aligning a lens module through a first light source, a first sensor, and a first gripper; (b) a step of aligning a holder through a second light source, a second sensor, and a second gripper; (c) a step of combining the lens module according to step (a) and the holder according to step (b); (d) a step of combining a substrate module to the rear surface of the holder according to step (c); and (e) a step of aligning an optical axis between an image sensor in the substrate module and a lens in the lens module.

[0019] The method may include a step of applying a first adhesive member between the substrate module and the holder before the step (e), and a step of curing the first adhesive member after the step (e).

[0020]

[0021] In this embodiment, since the lens module and holder are aligned through separate processes before being combined with the substrate module, and then the lens module and holder, and the holder and substrate module are combined through an adhesive, there is an advantage in that the occurrence of optical axis deviation due to assembly tolerances between multiple parts can be minimized compared to a conventional camera module in which only the alignment process of the lens and image sensor combined with the holder is performed.

[0022]

[0023] FIG. 1 is a perspective view showing the appearance of a camera module according to an embodiment of the present invention.

[0024] Figure 2 is a cross-sectional view of a camera module according to an embodiment of the present invention.

[0025] Figure 3 is an exploded perspective view of a camera module according to an embodiment of the present invention.

[0026] Figure 4 is a drawing showing Figure 3 from a different angle.

[0027] Figure 5 is a block diagram of a manufacturing device for a camera module according to an embodiment of the present invention.

[0028] FIG. 6 is a drawing for explaining an alignment process of a lens module according to an embodiment of the present invention.

[0029] Figure 7 is a flowchart of a method for manufacturing a camera module according to an embodiment of the present invention.

[0030] Figure 8 is a perspective view of a vehicle according to an embodiment of the present invention.

[0031]

[0032] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0033] However, the technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of ​​the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.

[0034] In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0035] Additionally, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.

[0036] In this specification, the singular may also include the plural unless specifically stated otherwise in the phrase, and when it is described as “A and / or at least one (or more) of B, C”, it may include one or more of all combinations that can be combined with A, B, C.

[0037] Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and are not intended to limit the nature, order, or sequence of the components.

[0038] And, when a component is described as being 'connected', 'coupled', or 'connected' to another component, it may include not only cases where the component is 'connected', 'coupled', or 'connected' directly to the other component, but also cases where the component is 'connected', 'coupled', or 'connected' by another component between the component and the other component.

[0039] Additionally, when described as being formed or arranged "above" or "below" each 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 arranged between the two components. Furthermore, when expressed as "above" or "below," the meaning may include not only the upward direction but also the downward direction based on one component.

[0040] The term "optical axis direction" used below is defined as the optical axis direction of the lens. Meanwhile, "optical axis direction" may correspond to "up-down direction", "z-axis direction", etc.

[0041] Hereinafter, the present invention will be described in more detail with reference to the attached drawings.

[0042] Figure 8 is a perspective view of a vehicle according to an embodiment of the present invention.

[0043] Referring to FIG. 8, a vehicle (1) according to an embodiment of the present invention may include a body (2), a door (3), glass (4), a headlamp (5), a taillamp (6), and a camera module (10).

[0044] The above body (2) may be an exterior member of the vehicle (1). The body (2) may have various forms, such as a frame type and a monocoque type. One or more doors (3) may be coupled to a side of the body (2). In addition, the glass (4) may be coupled to the front and rear (where the pillar is formed) of the upper portion of the body (2) and the door (3). The headlamp (5) may be mounted on the front of the lower portion of the body (2). The taillamp (6) may be mounted on the rear of the lower portion of the body (2).

[0045] A camera module (10) may be installed on the side of the body (2) or on a door positioned at the front of one or more of the doors (3). The camera module (10) may be installed in front of the glass (4) coupled to the door (3). That is, in the vehicle (1) of the present embodiment, the side mirror may be replaced with the camera module (10).

[0046] The camera module (10) can capture images of both rear sides of the vehicle. Images captured by the camera module (10) can be electrically connected to a display unit (not shown) via an electronic control unit (ECU) or the like. Accordingly, images captured by the camera module (10) can be controlled by the electronic control unit (ECU) and played back on the display unit.

[0047] An interior space for the driver can be formed inside the body (2). A display unit can be installed inside the body (2). The display unit can output an image captured by the camera module (10). The display unit can be installed on a dashboard (not shown) inside the body (2).

[0048] The installation form of the camera module (10) in the vehicle (1) described above is exemplary, and the camera module (10) can be used in any one or more of the front camera, side camera, rear camera, and black box of the vehicle (1).

[0049] Below, a camera module according to the present embodiment is described with reference to the drawings.

[0050] FIG. 1 is a perspective view showing the appearance of a camera module according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of a camera module according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of a camera module according to an embodiment of the present invention, and FIG. 4 is a view showing FIG. 3 from a different angle.

[0051] Referring to FIGS. 1 to 4, a camera module (10) according to an embodiment of the present invention may include a housing (100), a holder (200), a lens module (300), a substrate module (400), a first adhesive member (500), and a second adhesive member (600).

[0052] The housing (100) may form the outer shape of the camera module (10). Based on the direction of incidence of light, the housing (100) may be referred to as a rear body in that it is positioned at the rear of the holder (200). The housing (100) may be formed in a box shape with an open upper surface. A space (110) may be formed within the housing (100). The substrate module (400) may be positioned in the space (110). The space (110) may be opened upward.

[0053] A connector lead-out portion (190) having a shape that protrudes rearward relative to other areas may be arranged on the rear of the housing (100). The connector lead-out portion (190) is formed in a pipe shape and can accommodate a connector (490) to be described later therein. An external terminal is coupled to the connector lead-out portion (190), and thus, the external terminal can be electrically connected to the connector (490).

[0054] A sealing member (492) is arranged between the connector (490) and the connector withdrawal portion (190), thereby preventing external foreign substances from entering the space within the camera module (10) through the connector withdrawal portion (190).

[0055] A coupling groove (140) may be formed on the front surface of the housing (100) facing the holder (200). The coupling groove (140) may be arranged on the front edge of the housing (100). The coupling groove (140) may have a closed loop shape. The coupling groove (140) may have a concave shape that is concave rearward compared to other areas from the front surface of the housing (100). In detail, a first protrusion (120) and a second protrusion (130) may be formed on the front surface of the housing (100), and the coupling groove (140) may be arranged between the first protrusion (120) and the second protrusion (130). A third protrusion (240) of the holder (200), which will be described later, may be coupled to the coupling groove (140).

[0056] A protrusion (150) may be formed on the front surface of the housing (100). The protrusion (150) may have a shape that protrudes forward from the front surface of the housing (100) compared to other areas. The protrusions (150) may be provided in multiple numbers and may be respectively positioned in corner areas of the housing (100). The protrusions (150) may be coupled with a coupling hole (260) formed on the rear surface of the holder (200), which will be described later.

[0057] The holder (200) can form the outer shape of the camera module (10) together with the housing (100). The holder (200) can be called a front body in that it is arranged in front of the housing (100). The holder (200) can be combined with the lens module (300). The substrate module (400) can be arranged in the internal space of the camera module (10) formed by the combination of the holder (200) and the housing (100).

[0058] The holder (200) may include a body portion (202). The body portion (202) may include an upper plate and a side plate extending rearward from an edge of the upper plate. A third protrusion (240) may be formed on the lower surface of the side plate so as to protrude downward more than other areas. The third protrusion (240) may be coupled to the coupling groove (140). An adhesive (not shown) may be disposed between the third protrusion (240) and the coupling groove (140). The adhesive may include epoxy.

[0059] A coupling hole (260) may be formed on the rear surface of the body portion (202). The coupling hole (260) may be formed concavely from the rear surface of the body portion (202) toward the front. The coupling holes (260) may be arranged in each of the four corner areas of the rear surface of the body portion (202). The coupling holes (260) may be coupled with the protrusions of the housing (100).

[0060] A guide (250) may be arranged on the rear side of the body portion (202). The guide (250) may have a shape that protrudes rearward from the rear side of the upper plate. The guide (250) may have a closed loop shape. The guide (250) may be in contact with the front side of the substrate module (400). The guide (250) may be in contact with the front side of the first substrate (412, see FIG. 3) to be described later. The guide (250) may include a first guide (252), a second guide (254), and a third guide (256) corresponding to the number of the lens modules (300). The first to third guides (252, 254, 256) may be arranged to be spaced apart from each other in a direction perpendicular to the optical axis direction.

[0061] The holder (200) may include a barrel portion. The barrel portion may have a shape that protrudes forward from the front surface of the upper plate. The barrel portion may include a first barrel portion (210), a second barrel portion (220), and a third barrel portion (230). The first to third barrel portions (210, 220, 230) may be arranged to be spaced apart from each other in a direction perpendicular to the optical axis direction on the front surface of the holder (200). The first to third barrel portions (210, 220, 230) may each have a circular cross-sectional shape.

[0062] At least a portion of the first lens module (310) to be described later can be coupled to the first barrel portion (210). A first opening (212) into which the first lens module (310) is coupled can be formed on the inside of the first barrel portion (210).

[0063] At least a portion of a second lens module (330) to be described later may be coupled to the second barrel portion (220). A second opening (222) into which the second lens module (330) is coupled may be formed on the inside of the second barrel portion (220).

[0064] At least a portion of a third lens module (350) to be described later can be coupled to the third barrel portion (230). A third opening (232) into which the third lens module (350) is coupled can be formed on the inside of the third barrel portion (230).

[0065] Based on the optical axis direction, the lengths of the first to third barrel parts (210, 220, 230) may be different from each other. Based on the front of the body part (202), the protruding heights of the first to third barrel parts (210, 220, 230) may be different from each other. For example, the length of the second barrel part (220) may be longer than the length of the first barrel part (210) and shorter than the length of the third barrel part (230). However, this is exemplary, and it goes without saying that the lengths of the first to third barrel parts (210, 220, 230) may be the same.

[0066] The lens module (300) may be placed in front of the holder (200). The lens module (300) may be coupled to the front of the holder (200). The camera module (10) according to the present embodiment may be a triple camera having three lens modules (300). However, this is exemplary, and the camera module (10) may be a dual camera having two lens modules, or may be equipped with four or more lens modules.

[0067] The above lens module (300) may include a first lens module (310), a second lens module (330), and a third lens module (350).

[0068] The first lens module (310) may be coupled to the first barrel portion (210). The first lens module (310) may include a first lens barrel (312) and a first lens (316) disposed inside the first lens barrel (312). The first lens barrel (312) is formed in a cylindrical shape with upper and lower surfaces opened, and a space for accommodating the first lens (316) may be formed inside the first lens barrel (312). The first lens (316) may include a plurality of lenses, and the plurality of lenses may be disposed along the optical axis direction inside the first lens barrel (312).

[0069] A first flange (314) having a shape that protrudes outward more than other areas may be formed on the outer surface of the first lens barrel (312). The first flange (314) may have a circular cross-sectional shape. The first flange (314) may be arranged on the upper surface of the first barrel portion (210).

[0070] The second lens module (330) may be coupled to the second barrel portion (220). The second lens module (330) may include a second lens barrel (332) and a second lens (336) disposed inside the second lens barrel (332). The second lens barrel (332) is formed in a cylindrical shape with open upper and lower surfaces, and a space for accommodating the second lens (336) may be formed inside. The second lens (336) may include a plurality of lenses, and the plurality of lenses may be disposed along the optical axis direction inside the first lens barrel (332).

[0071] A second flange (334) having a shape that protrudes outward more than other areas may be formed on the outer surface of the first lens barrel (332). The second flange (334) may have a circular cross-sectional shape. The second flange (334) may be arranged on the upper surface of the second barrel portion (220).

[0072] The third lens module (350) may be coupled to the third barrel portion (230). The third lens module (350) may include a third lens barrel (352) and a third lens (356) disposed inside the third lens barrel (352). The third lens barrel (352) is formed in a cylindrical shape with upper and lower surfaces opened, and a space for accommodating the third lens (356) may be formed inside. The third lens (356) may include a plurality of lenses, and the plurality of lenses may be disposed along the optical axis direction inside the third lens barrel (352).

[0073] A third flange (354) having a shape that protrudes outward more than other areas may be formed on the outer surface of the third lens barrel (352). The third flange (354) may have a circular cross-sectional shape. The third flange (354) may be arranged on the upper surface of the third barrel portion (230).

[0074] The optical axis lengths of the first to third lens modules (310, 330, 350) may be different from each other. For example, the front of the third lens module (350) may be positioned forward relative to the front of the second lens module (330) and rearward relative to the front of the first lens module (310).

[0075] The substrate module (400) may be placed in a space within the camera module (10). The substrate module (400) may be placed in a space (110) within the housing (100). The substrate module (400) may be placed at the rear of the lens module (300). The substrate module (400) may include a first substrate module (410) placed at the rear of the first lens module (310), a second substrate module (430) placed at the rear of the second lens module (330), and a third substrate module (450) placed at the rear of the third lens module (350). The first to third lens modules (310, 330, 350) may be placed spaced apart from each other in a direction perpendicular to the optical axis direction in the space (110) within the housing (100).

[0076] Since the first to third lens modules (310, 330, 350) have the same configuration and structure, the following description will be given of the first to third lens modules (310, 330, 350) based on the first lens module (310).

[0077] The above first lens module (310) may include a first substrate (412), a second substrate (414), a connection substrate (416), and a shield can (420).

[0078] The first substrate (412) may be a printed circuit board. An image sensor (413) may be placed on the first substrate (412). The image sensor (413) may be placed so as to face the first lens module (310) in the optical axis direction. The image sensor (413) may be aligned with the first lens module (310) in the optical axis direction.

[0079] The second substrate (414) may be a printed circuit board. The second substrate (414) may be positioned behind the first substrate (412). The second substrate (414) may be positioned spaced apart from the first substrate (412) in the optical axis direction. The connector (490) may be positioned on the back of the second substrate (414).

[0080] A protrusion (415) may be formed on the side surface of the second substrate (414). The protrusion (415) may have a shape that protrudes outward from the side surface of the second substrate (414) more than other areas. The protrusion (415) may be arranged on three of the four side surfaces of the second substrate (415).

[0081]

[0082] *66 The above connecting board (416) may be a flexible printed circuit board (FPCB). The connecting board (416) may electrically connect the first board (412) and the second board (414). Both ends of the connecting board (416) may be connected to the first board (412) and the second board (414), respectively.

[0083] The shield can (420) may be placed between the first substrate (412) and the second substrate (414). The shield can (420) may separate the first substrate (412) and the second substrate (414) in the optical axis direction.

[0084] The shield can (420) may include a fence portion (424), a coupling portion (425), and a guide portion (428). The fence portion (424) may be positioned between the first substrate (412) and the second substrate (414). The upper end of the fence portion (424) may be in contact with the lower surface of the first substrate (412). The fence portions (424) may be positioned to form four sides, and a connecting portion (422) may be positioned between adjacent fence portions (424).

[0085] The above-mentioned coupling portion (425) has a shape that protrudes downward from the lower surface of the fence portion (424) and may include a coupling hole (426). The protrusion (415) of the second substrate (414) may be coupled to the coupling hole (426) of the coupling portion (425). The inner surface of the coupling portion (425) may be formed to be inclined so that the distance to the side surface of the second substrate (414) increases as it goes rearward. The coupling portion (425) may be arranged on three sides of the fence portion (424).

[0086] The above guide portion (428) may have a shape that extends inwardly from the lower end of the fence portion (424). The guide portion (428) may be arranged on one side of the fence portion (424) where the coupling portion (425) is not formed. The guide portion (428) may be formed in the arrangement area of ​​the connection substrate (416). The coupling of the connection substrate (416) may be guided through the outer surface of the guide portion (428).

[0087] The first adhesive member (500) may be disposed between the substrate module (400) and the holder (200). The first adhesive member (500) may be disposed between the front surface of the first substrate (412) and the rear surface of the guide (250). The first adhesive member (500) may be disposed between the front surface of the first substrate (412) of the first substrate module (410) and the first guide (252), between the front surface of the first substrate of the second substrate module (430) and the second guide (254), and between the front surface of the first substrate of the third substrate module (450) and the third guide (256).

[0088] The first adhesive member (500) may be epoxy. When the first adhesive member (500) is cured, the bonding state of the substrate module (400) and the holder (200) can be firmly maintained. The alignment of the substrate module (400) and the holder (200), and the substrate module (400) and the lens module (300) through the curing of the first adhesive member (500) will be described later.

[0089] Meanwhile, in this embodiment, it is described as an example that the first adhesive member (500) is provided in a plurality of closed-loop shapes corresponding to the number of lens modules (300), but this is not limited thereto, and the first adhesive member (500) may be implemented as a single adhesive member having a closed-loop shape and placed between the holder (200) and the housing (100).

[0090] The second adhesive member (600) may be disposed between the lens module (300) and the holder (200). The second adhesive member (600) may be disposed between the first flange (314) and the upper surface of the first barrel portion (210), between the second flange (334) and the upper surface of the second barrel portion (220), and between the third flange (354) and the upper surface of the third barrel portion (230).

[0091] The second adhesive member (600) may be epoxy. When the second adhesive member (600) is cured, the bonding state between the lens module (300) and the holder (200) can be firmly maintained. The alignment between the lens module (300) and the holder (200) through the curing of the second adhesive member (600) will be described later.

[0092] Below, the manufacturing process of the camera module (10) will be described.

[0093] FIG. 5 is a block diagram of a manufacturing device for a camera module according to an embodiment of the present invention, FIG. 6 is a drawing for explaining an alignment process for a lens module according to an embodiment of the present invention, and FIG. 7 is a flowchart of a manufacturing method for a camera module according to an embodiment of the present invention.

[0094] Referring to FIGS. 5 to 7, a camera module (10) according to an embodiment of the present invention can be manufactured by a step (S1) of aligning a lens module (300), a step (S2) of aligning a holder (200), a step (S3) of combining the lens module (300) and the holder (200), a step (S4) of combining a substrate module (400) to the holder (200) to which the lens module (300) is combined, a step (S5) of aligning an image sensor in the substrate module (400) and a lens in the lens module (300), and a step (S6) of curing a first adhesive member (500).

[0095] In detail, as illustrated in FIG. 5, the camera module manufacturing device (1000) may include a lens module alignment unit (1100), a holder alignment unit (1200), and a substrate bonding unit (1300).

[0096] The lens module alignment unit (1100) may include a first gripper (1110), a first light source (1120), and a first sensor (1130). The lens module (300) may be coupled to the first gripper (1110). The first gripper (1110) may move in the X-axis, Y-axis, and Z-axis directions, thereby tilting the lens module (300).

[0097] The first light source (1120) can irradiate light toward the lens within the lens module (300) coupled to the first gripper (1110). The light may be a laser. The light irradiated through the first light source (1120) can pass through the incident surface of the lens within the lens module (300) and be emitted to the output surface.

[0098] The first sensor (1130) may be positioned at the rear of the lens module (300) based on the path of light irradiated from the first light source (1120). The first sensor (1130) may include a light receiving sensor or an image sensor. When the first sensor (1130) is an image sensor, the camera module manufacturing device (1000) may be equipped with a test board (not shown) for mounting the first sensor (1130).

[0099] As shown in FIG. 6, before the movement of the first gripper (1110) in which the lens module (300) is coupled between the first light source (1120) and the first sensor (1130), the positions of the light source (1120) and the first sensor (1130) can be aligned so that the light emitted from the light source (1120) is directed toward the center of the first sensor (1130), as in i) of FIG. 6.

[0100] Next, as the lens module (300) is placed between the first light source (1120) and the first sensor (1130), light emitted from the first light source (1120) can pass through the lens in the lens module (300) and be irradiated to the first sensor (1130). In this case, as in ii) of FIG. 6, the position of the light received by the first sensor (1130) may also be misaligned depending on the misalignment of the lens module (300).

[0101] Accordingly, the control unit (not shown) can move the position of the lens module (300) through the first gripper (1110) in a direction perpendicular to the optical axis or the optical axis direction based on the position information of the light received from the first sensor (1130), so that the light irradiated from the first light source (1120) can pass through the lens module (300) and be received at the center of the first sensor (1130), as in iii) of FIG. 6.

[0102] The holder alignment unit (1120) can align the holder (200). The holder alignment unit (1120) can include a second gripper (1210), a second light source (1220), and a second sensor (1230). The second gripper (1210) is coupled to the holder (200), and the holder (200) can be tilted by movement in the X-axis, Y-axis, and Z-axis directions.

[0103] The second light source (1220) can irradiate light toward the holder (200). For example, the light irradiation of the second light source (1220) can be directed toward multiple spots, such as the four corners of the holder (200).

[0104] The second sensor (1230) can receive light from the second light source (1220) reflected from the holder (200). Accordingly, the control unit can operate the second gripper (1210) to align the position of the holder (200) in the direction of the optical axis based on the position information of the light received from the second sensor (1230).

[0105] When the alignment of the holder (200) is completed, the lens module (300) aligned through the lens module alignment part (1100) and the holder (200) can be mutually coupled through the second adhesive member (600).

[0106] The substrate coupling part (1300) can couple the substrate module (400) to the rear surface of the holder (200) to which the lens module (300) is coupled. The substrate coupling part (1300) can include a third gripper (1310) to which the substrate module (400) is coupled, an alignment part (1320) that aligns the position of the substrate module (400) through the third gripper (1310), and an adhesive part (1330) that applies and hardens the first adhesive member (500) between the holder (200) and the substrate module (400). The curing of the first adhesive member (500) can be performed after applying pre-curing epoxy between the holder (200) and the substrate module (400), and then performing alignment of the optical axis direction of the lens module (300) and the image sensor (413) through the alignment part (1320).

[0107] According to this embodiment, since the lens module and holder are aligned through separate processes before being combined with the substrate module, and then the lens module and holder, and the holder and substrate module are combined through an adhesive, there is an advantage in that the occurrence of optical axis deviation due to assembly tolerances between multiple parts can be minimized compared to a conventional camera module in which only the alignment process of the lens and image sensor combined with the holder is performed.

[0108] Although all components constituting the embodiments of the present invention have been described above as being combined or operating in combination, the present invention is not necessarily limited to these embodiments. That is, within the scope of the purpose of the present invention, all components may be selectively combined and operated one or more times. In addition, terms such as "include," "comprise," or "have" described above, unless specifically stated to the contrary, mean that the corresponding component may be inherent, and therefore should be interpreted as including other components rather than excluding other components. All terms, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the art to which the present invention pertains, unless otherwise defined. Commonly used terms, such as terms defined in a dictionary, should be interpreted as being consistent with the contextual meaning of the related technology, and shall not be interpreted in an ideal or excessively formal sense, unless explicitly defined in the present invention.

[0109] The above description is merely an illustrative description of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications and variations may be made without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the technical idea of ​​the present invention, and the scope of the technical idea of ​​the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. A holder including a first barrel section, a second barrel section, and a third barrel section; A first lens module coupled to the first barrel portion and including a first flange; A second lens module coupled to the second barrel portion and including a second flange; A third lens module coupled to the third barrel portion and including a third flange; A housing positioned at the rear of the holder; A first substrate module disposed in the space within the housing and facing the first lens module in the optical axis direction; A second substrate module disposed in the space within the housing and facing the second lens module in the optical axis direction; A third substrate module disposed in the space within the housing and facing the third lens module in the optical axis direction; A first adhesive member disposed between the holder and the first substrate module, the holder and the second substrate module, and the holder and the third substrate module; and A camera module including a second adhesive member disposed between the first flange and the first barrel portion, the second flange and the second barrel portion, and the third flange and the third barrel portion.

2. In paragraph 1, A camera module wherein the first adhesive member and the second adhesive member are each made of epoxy.

3. In paragraph 1, A camera module including a guide protruding rearward on the rear side of the holder and coupled to the front side of the first substrate module, the front side of the second substrate module, and the front side of the third substrate module.

4. In paragraph 1, Each of the first substrate module, the second substrate module and the third substrate module, A first substrate on which an image sensor is placed on the front; A second substrate arranged at the rear of the first substrate; A connecting substrate connecting the first substrate and the second substrate; and A camera module including a shield can disposed between the first substrate and the second substrate.

5. In paragraph 1, A camera module in which the protrusion heights of the first to third barrel portions from the front of the holder are different from each other.

6. In paragraph 1, A camera module in which the front surfaces of the first to third lens modules are arranged at a step angle from each other in the optical axis direction.

7. In paragraph 1, A camera module in which the first adhesive member and the second adhesive member each have a closed loop shape.

8. In paragraph 4, Including a connector protruding rearward from the rear surface of the second substrate, A camera module having a housing protruding rearward from the rear and including a connector outlet for receiving the connector on the inside. 9.(a) A step of aligning a lens module through a first light source, a first sensor, and a first gripper; (b) a step of aligning the holder through a second light source, a second sensor, and a second gripper; (c) a step in which the lens module according to step (a) and the holder according to step (b) are combined; (d) a step of combining a substrate module to the rear surface of the holder according to step (c); and (e) A method for manufacturing a camera module, including a step of aligning the optical axis between the image sensor in the substrate module and the lens in the lens module.

10. In paragraph 9, A method for manufacturing a camera module, comprising: a step of applying a first adhesive member between the substrate module and the holder before the step (e), and a step of curing the first adhesive member after the step (e).

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