Camera module

Abstract

The camera module includes: a front housing; a lens module coupled to the front housing; a substrate disposed below the lens module; and a joint for coupling the front housing and the lens module, wherein: the lens module includes a lens barrel body partially disposed in the front housing, a lens disposed in the lens barrel body, and a flange protruding outward from the lens barrel body; the front housing includes a first body and a protrusion protruding from the upper surface of the first body; the flange includes a first region perpendicular to the optical axis and a second region extending from the first region along the optical axis, and the joint is disposed between the second region and the first body.

Description

Technical Field

[0001] This invention relates to a camera device module. Background Technology

[0002] Recently, ultra-miniature camera module has been developed and is widely used in small electronic products such as smartphones, laptops and game consoles.

[0003] As automobiles become more widespread, ultra-compact camera devices are being used extensively in vehicles and small electronic products. Examples include black box cameras that provide objective data for vehicle protection or traffic accidents, rear-view cameras that allow drivers to monitor blind spots behind the vehicle on a screen to ensure safety when reversing, and surrounding detection cameras that can monitor the area around the vehicle.

[0004] The camera device may be equipped with a lens, a lens holder that houses the lens, an image sensor that converts the image of the object focused on the lens into an electrical signal, and a printed circuit board on which the image sensor is mounted. The housing that forms the exterior of the camera device is formed by a structure in which the entire area is sealed to prevent the internal components from being contaminated by external substances containing moisture. Summary of the Invention

[0005] Technical topics

[0006] The present invention provides a camera device module that can reduce manufacturing costs by reducing the number of parts and securely fix the lens module to the housing.

[0007] Technical solutions

[0008] The imaging device module according to this embodiment includes: a front housing; a lens module coupled to the front housing; a substrate disposed on the lower side of the lens module; and a joint that couples the front housing and the lens module. The lens module includes a lens barrel body partially disposed within the front housing, a lens disposed within the lens barrel body, and a flange protruding outward from the lens barrel body. The front housing includes a first body and a protrusion protruding from the upper surface of the first body. The flange includes a first region perpendicular to the optical axis and a second region extending from the first region along the optical axis. The joint is disposed between the second region and the first body.

[0009] The protrusion can be configured to be spaced apart from the first region and the second region in the direction of the optical axis.

[0010] The front housing includes an untreated area and a surface-treated area through anodizing, and the upper surface of the first body facing the first area may be the untreated area.

[0011] The main body of the lens barrel includes an untreated area and a surface-treated area through anodizing, and the lower surface of the second area can be the untreated area.

[0012] At least a portion of the lower surface of the second region and the upper surface of the first body may be spaced apart in the optical axis direction.

[0013] A first gap is formed between the lower surface of the second region and the upper surface of the first body, and the length of the first gap about the optical axis can be 15% or less of the thickness of the first body.

[0014] A first chamfered surface is formed on the upper outer surface of the first body forming the joint, and a second chamfered surface may be formed on the lower outer surface of the second region forming the joint.

[0015] A second gap, spaced apart in a direction perpendicular to the optical axis, can be provided between the second region and the protrusion.

[0016] A third gap, spaced apart in the optical axis direction, can be provided between the protrusion and the first region.

[0017] Beneficial effects

[0018] This embodiment offers the following advantages: since the method of joining the front housing and lens module by welding does not require adhesives or sealing materials for joining, the manufacturing cost can be reduced due to the reduction in the number of parts, and the assembly process can be simplified.

[0019] In addition, since the optical axis distance between the lens module and the substrate module can be precisely adjusted before the welding process, it has the advantage of ensuring the optimal resolution value within the camera module. Attached Figure Description

[0020] Figure 1 This is a perspective view of the appearance of a camera device module according to an embodiment of the present invention.

[0021] Figure 2 This is an exploded perspective view of a camera device module according to an embodiment of the present invention.

[0022] Figure 3 This is a cross-sectional view of a camera device module according to an embodiment of the present invention.

[0023] Figure 4 It is shown Figure 3 An enlarged view of A in the image.

[0024] Figure 5 It is a cross-sectional view of a camera device module based on existing technology.

[0025] Figure 6It is a graph comparing the temperature inside the camera module according to an embodiment of the present invention with the temperature inside the camera module according to the prior art. Detailed Implementation

[0026] In the following, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0027] However, the technical concept of the present invention is not limited to the few embodiments described, but can be implemented in various forms, and within the scope of the technical concept of the present invention, one or more of the constituent elements can be selectively combined or substituted among the embodiments.

[0028] Furthermore, unless explicitly defined and described, the terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as meanings that can be commonly understood by those skilled in the art, and common terms (e.g., terms defined in dictionaries) may be interpreted in light of their meaning in the context of the relevant art.

[0029] Furthermore, the terminology used in this specification is for describing embodiments and is not intended to limit the invention.

[0030] In this specification, unless specifically stated in the phrase, the singular form may include the plural form, and when described as “at least one (or more than one) of A, B and C”, it may include one or more of all combinations that can be made using A, B and C.

[0031] Furthermore, when describing components of embodiments of the present invention, terms such as first, second, A, B, (a) and (b) may be used. These terms are intended only to distinguish components from other components, and the terms do not limit the nature, order, or sequence of the components.

[0032] Furthermore, when a component is described as being “connected,” “coupled,” or “interconnected” to another component, the component is not only directly connected, coupled, or interconnected to the other component, but may also include cases where the component is “connected,” “coupled,” or “interconnected” due to other components between the component and the other component.

[0033] Additionally, when described as being formed or positioned "above" or "below" the components, "above" or "below" means not only that the two components are in direct contact, but also that one or more other components are formed or positioned between the two components. Furthermore, when expressed as "above" or "below," it can include not only an upward direction but also a downward direction relative to a component.

[0034] In the following text, "optical axis direction" is defined as the optical axis direction of the lens. However, "optical axis direction" can also correspond to "vertical direction," "z-axis direction," etc.

[0035] The invention will now be described in more detail with reference to the accompanying drawings.

[0036] Figure 1 This is a perspective view of the appearance of a camera device module according to an embodiment of the present invention; Figure 2 This is an exploded perspective view of a camera device module according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of a camera device module according to an embodiment of the present invention; and Figure 4 It is shown Figure 3 An enlarged view of A in the image.

[0037] Reference Figures 1 to 4 According to an embodiment of the present invention, the camera device module 10 can be a vehicle camera device module. The camera device module 10 can be coupled to a vehicle. The camera device module 10 can be used for at least one of a front-facing camera, a side-facing camera, a rear-facing camera, and a black box. The camera device module 10 can be disposed at the front of the vehicle. The camera device module 10 can be disposed at the rear of the vehicle. The camera device module 10 can be coupled to the windshield of the vehicle. The camera device module 10 can be coupled to the windshield at the front or rear of the vehicle. The camera device module 10 can be disposed on the side of the vehicle. The camera device module 10 can capture images of objects and output the images as images on a display (not shown).

[0038] The camera module 10 may include a front housing 100. The front housing 100 may be referred to as a front body, an upper housing, a first housing, or a front cover. The front housing 100 may include a second body 110. The front housing 100 may include a first body 130. The second body 110 and the first body 130 may be integrally formed.

[0039] The second body 110 may be formed of a metallic material. The second body 110 may be disposed on the rear housing 200 (described later). The second body 110 may be coupled to the rear housing 200. The lower end of the second body 110 may be fixed to the rear housing 200. Alternatively, the second body 110 may be coupled to the rear housing 200 by welding. In contrast, the second body 110 may be coupled to the rear housing 200 by adhesive bonding or welding. The second body 110 may be coupled to the substrate module 400 (described later).

[0040] The second body 110 can be formed into a rectangular shape with an open bottom. In this case, the corners of the second body 110 can be rounded. The second body 110 may include an upper plate 114 and a first side plate 112 extending downward from the edge of the upper plate 114. The upper plate 114 can be formed into a rectangular shape. The upper plate 114 can extend outward from the lower outer surface of the first body 130. The first side plate 112 can extend downward from the outer edge of the upper plate 114. Multiple first side plates 112 can be provided. The first side plate 112 may include four side plates. The first side plate 112 can be formed into a square plate shape. The first side plate 112 may include a first-first side plate, a first-second side plate, a first-third side plate disposed on the opposite side of the first-first side plate, and a first-fourth side plate disposed on the opposite side of the first-second side plate. The first side plate 112 may include first-first corner portions to first-fourth corner portions respectively disposed between the first-first side plate to the first-fourth side plate. Each of the first-first corner portions to the first-fourth corner portions may at least partially include a rounded shape.

[0041] A space separated from other areas can be formed inside the second body 110. The space can have an open lower portion and an upper portion that can be covered by the lower surfaces of the first body 130 and the lens module 300.

[0042] The second body 110 may include the first guide 170 (see...) Figure 3 The first guide 170 may have a shape that protrudes downward from the lower surface of the upper plate 114. The first guide 170 may contact the upper surface of the substrate module 400. The lower surface of the first guide 170 may contact the upper surface of the first substrate 410 (described later) within the substrate module 400. The coupling area of ​​the substrate module 400 may be guided within the space of the camera device module 10 by the first guide 170.

[0043] The front housing 100 may include a first body 130. The first body 130 may be formed of a metallic material. The first body 130 may have a circular cross-sectional shape. The first body 130 may be disposed on a second body 110. The first body 130 may extend upward from the upper surface of the second body 110. The first body 130 may be integrally formed with the second body 110. As a modified embodiment, the first body 130 may be coupled to the second body 110. In this case, the first body 130 may be fixed to the second body 110 by adhesive. The first body 130 may house a lens module 300 therein. A hole 102 may be formed at the center of the first body 130 to which the lens module 300 is coupled. The lens module 300 may be coupled to the hole 102 of the first body 130.

[0044] The front housing 100 may include a protrusion 136. The protrusion 136 may be referred to as a second region 136. In this case, the first body 130 may include a first region 132 and a second region 136. The first region 132 may have a shape that protrudes upward from the upper surface of the second body 110, and the second region 136 may have a shape that protrudes upward from the upper surface of the first region 132. The upper surfaces of the first region 132 and the second region 136 may be stepped in the optical axis direction. The upper surface of the second region 136 may be positioned higher than the upper surface of the first region 132. The second region 136 may have a shape in which a portion of the upper surface of the first region 132 protrudes upward. The second region 136 may be located inside the first region 132. Each of the first region 132 and the second region 136 may have an annular cross-sectional shape.

[0045] like Figure 4 As shown, a first chamfered surface 137 can be formed on the upper outer surface of the first body 130. The first chamfered surface 137 can be formed to be inclined relative to the side surface and the upper surface of the first body 130 so as to connect the side surface and the upper surface of the first body 130. The first chamfered surface 137 can form an obtuse angle with each of the side surface and the upper surface of the first body 130.

[0046] At least a portion of the outer surface of the front housing 100 may be surface-treated. At least a portion of the outer surface of the front housing 100 may be anodized. The outer surface of the front housing 100 may include surface-treated areas that have been surface-treated by anodizing and untreated areas that have not been surface-treated. The untreated areas may be areas where the material of the front housing 100 is exposed to the outside through the outer surface.

[0047] The front housing 100 may include surface-treated areas and untreated areas. The upper surface of the first body 130, which faces the flange 330 (described later) of the lens module 300 in the optical axis direction, may be an untreated area. Therefore, the upper surface of the protrusion 136 may be an untreated area. At least a portion of the outer surface of the first body 130, which is connected to the upper surface of the first body 130, may be an untreated area. The remaining areas of the surface of the front housing 100, excluding the aforementioned untreated areas, may be surface-treated areas.

[0048] The camera module 10 may include a rear housing 200. The rear housing 200 may be referred to as a rear body, lower housing, second housing, or rear cover. The rear housing 200 may be formed in a rectangular shape with an opening in the upper portion. The rear housing 200 may be made of a metallic material. The rear housing 200 may be disposed below the front housing 100. The rear housing 200 may be coupled to the front housing 100. The rear housing 200 may form an internal space by coupling with the front housing 100. The rear housing 200 may include a space portion 202 with its upper surface open.

[0049] The rear housing 200 may include a lower plate 220. The lower plate 220 may face the upper plate 114 of the second body 110 of the front housing 100 in the optical axis direction. The lower plate 220 may be spaced apart from the upper plate 114 of the second body 110 of the first body 110 in the optical axis direction. The lower plate 220 may be parallel to the upper plate 114 of the second body 110 of the front housing 100. The lower plate 220 may be formed in a square shape. In this case, at least a portion of the corners of the lower plate 220 may include a circular shape.

[0050] The rear housing 200 may include a second side plate 210. The second side plate 210 may extend from the lower plate 220. The second side plate 210 may extend upward from the outer edge of the lower plate 220. A shielding member (not shown) may be disposed on the second side plate 210. The shielding member may be in surface contact with the inner surface of the second side plate 210. The upper end of the second side plate 210 may be coupled to the front housing 100. The upper surface of the second side plate 210 may be configured to face the lower surface of the first side plate 112 in the optical axis direction. The upper surface of the second side plate 210 may be in contact with the lower surface of the first side plate 112. The first side plate 112 and the second side plate 210 may be coupled to each other by at least one of welding, bonding and fusion methods. The outer surface of the second side plate 210 may be disposed on the same plane as the outer surface of the first side plate 112 of the front housing 100.

[0051] The rear housing 200 may include a connector lead-out portion 290. The connector lead-out portion 290 may have a shape that projects downward from the lower surface of the lower plate 220. A connector 490 (described later) may be disposed inside the connector lead-out portion 290. The connector lead-out portion 290 may be formed of a metallic material. The interior of the connector lead-out portion 290 may have a hollow tube shape.

[0052] A sealing member 480 is disposed between the inner surface of the connector lead-out portion 290 and the outer surface of the connector 490, thereby preventing external substances from entering the space inside the camera device module 10.

[0053] The rear housing 200 may include a second guide 230 (see Figure 3The second guide 230 may have a shape that protrudes inward from the inner surface of the second side plate 210. Due to the second guide 230, the space within the rear housing 200 may include multiple regions with different cross-sectional areas. For example, the cross-sectional area of ​​the upper region within the space of the rear housing 200 where the second guide 230 is not formed may be larger than the cross-sectional area of ​​the lower region within the space of the rear housing 200 where the second guide 230 is formed. The upper surface of the second guide 230 may support the lower surface of the first substrate 410 of the substrate module 400 (described later). The upper surface of the second guide 230 may contact the lower surface of the first substrate 410.

[0054] Similar to the front housing 100, at least a portion of the outer surface of the rear housing 200 may be surface treated. At least a portion of the outer surface of the rear housing 200 may be anodized.

[0055] The camera module 10 may include a lens module 300. The lens module 300 may be coupled to the front housing 100. The lens module 300 may be coupled to a hole 102 in the first body 130. At least a portion of the lens module 300 may be disposed inside the first body 130, and the remainder may be configured to protrude upward from the front housing 100.

[0056] The lens module 300 may include a lens barrel body 310 and one or more lenses 350 housed within the lens barrel body 310. The lenses 350 may be positioned facing the image sensor 412 (described later) within the substrate module 400 in the optical axis direction. The lenses 350 may be aligned with the image sensor 412 along the optical axis. Multiple lenses 350 are provided and may be spaced apart from each other in the optical axis direction within the lens barrel body 310. The outermost lens among the multiple lenses 350 may be exposed above the imaging device module 10.

[0057] The lens barrel body 310 may include a space with an open upper and lower surface inside. The lens 350 may be disposed within this space. The lens barrel body 310 may include multiple regions with different cross-sectional areas. For example, a region of the lens barrel body 310 disposed within the front housing 100 may have a smaller cross-sectional area than a region of the lens barrel body 310 protruding upward from the front housing 100. The lens barrel body 310 may have a circular cross-sectional shape.

[0058] The aforementioned lens barrel body 310 can be made of metal.

[0059] The lens barrel body 310 may include a flange 330. The flange 330 may be disposed on the outer surface of the lens barrel body 310. The flange 330 may have a shape that protrudes outward from the outer surface of the lens barrel body 310 more than other areas. The flange 330 may have a circular cross-sectional shape. When the lens module 300 is coupled to the front housing 100, the flange 330 may be disposed on the first body 130 of the front housing 100. The lower surface of the flange 330 may be configured to face the upper surface of the first body 130 in the optical axis direction. The outer surface of the flange 330 may be configured to form the same surface as the outer surface of the first body 130. The cross-sectional area of ​​the flange 330 may correspond to the cross-sectional area of ​​the first body 130.

[0060] The flange 330 may include a first region 332 protruding from the outer surface of the lens barrel body 310 in a direction perpendicular to the optical axis, and a second region 336 bending from the end of the first region 332 and extending downward in the optical axis direction. The flange 330 may have an approximately "..." shape due to the first region 332 and the second region 336. The cross-section of the shape. The first region 332 and the second region 336 can be arranged perpendicularly. The second region 336 can be arranged to overlap at least a portion of the protrusion 136 of the front housing 100 in a direction perpendicular to the optical axis. The second region 336 can be arranged to surround the outer surface of the protrusion 136. The lower surface of the second region 336 can be arranged to face the upper surface of the first body 130 in the optical axis direction. The outer surface of the second region 336 can be arranged to form the same surface as the outer surface of the first body 130.

[0061] An inclined surface 339 may be formed in the region connecting the upper surface of the first region 332 and the side surface of the second region 336 (see...). Figure 4 ).

[0062] like Figure 4 As shown, a second chamfered surface 337 can be formed on the lower outer surface of the second region 336. The second chamfered surface 337 can be positioned to face the first chamfered surface 137 of the first body 130 in the optical axis direction. The second chamfered surface 337 can be formed to be inclined relative to the side surface and the lower surface of the second region 336 to connect the side surface and the lower surface of the second region 336. The second chamfered surface 337 can form obtuse angles with the side surface and the lower surface of the second region 336, respectively. A joint 500 (described later) can be formed between the second chamfered surface 337 of the flange 330 and the first chamfered surface 137 of the first body 130 (see [link to documentation]). Figure 3 The welding process for forming the joint 500 can be more easily performed through the first chamfered surface 137 and the second chamfered surface 327, and the protrusion of the joint 500 from the outer surface of the camera device module 100 can be minimized.

[0063] At least a portion of the outer surface of the lens barrel body 310 may be surface-treated. At least a portion of the outer surface of the lens barrel body 310 may be anodized. The outer surface of the lens barrel body 310 may include surface-treated areas that have undergone anodizing and untreated areas. The untreated areas may be areas where the material of the lens barrel body 310 is exposed to the outside through the outer surface.

[0064] The lens barrel body 310 may include surface-treated areas and untreated areas. At least a portion of the lower surface of the flange 330 of the first body 130 facing the front housing 100 in the optical axis direction may be an untreated area. More specifically, the lower surface of the second region 336 and the side surface of the flange 330 connected to the lower surface of the second region 336 may be untreated areas. The remaining areas of the surface of the lens barrel body 310, excluding the aforementioned untreated areas, may be surface-treated areas.

[0065] The camera device module 10 may include a base plate module 400. The base plate module 400 may be disposed within the space of the camera device module 10. The base plate module 400 may be disposed between the front housing 100 and the rear housing 200.

[0066] The substrate module 400 may include a first substrate 410, a second substrate 420, a connecting substrate 430, and a shielding cover 440.

[0067] The first substrate 410 may be a printed circuit board (PCB). An image sensor 412 may be disposed on the upper surface of the first substrate 410. The image sensor 412 may be disposed on the first substrate 410 so as to face the lens module 300 in the optical axis direction. The upper surface of the first substrate 410 may be supported by the lower surface of the first guide 170 of the front housing 100, and the lower surface of the first substrate 410 may be supported by the upper surface of the second guide 230 of the rear housing 200. The cross-sectional area of ​​the first substrate 410 may be larger than the cross-sectional area of ​​the second substrate 420.

[0068] The second substrate 420 may be a printed circuit board (PCB). The second substrate 420 may be positioned spaced apart from the first substrate 410 in the optical axis direction. The second substrate 420 may be disposed below the first substrate 410. A connector 490 may be coupled to the lower surface of the second substrate 420. The upper end of the connector 490 may be soldered to the lower surface of the second substrate 420.

[0069] The second substrate 420 can be electrically connected to the first substrate 410. The second substrate 420 and the first substrate 410 can be connected via a connecting substrate 430 (see...). Figure 3Electrical connection. The connecting substrate 430 can be a flexible printed circuit board (FPCB). The connecting substrate 430 can be electrically connected to the first substrate 410 and the second substrate 420 at its upper and lower ends, respectively.

[0070] A shielding cover 440 is disposed between the first substrate 410 and the second substrate 420, and can separate the first substrate 410 and the second substrate 420 in the optical axis direction. The shielding cover 440 may be referred to as a spacer. The shielding cover 440 may include a gate portion (not shown) disposed between the first substrate 410 and the second substrate 420, and a coupling portion (not shown) extending from the gate portion and coupled to the second substrate 420. The coupling portion may include a hole. A protrusion for coupling with the hole may be disposed on a side surface of the second substrate 420.

[0071] The coupling structure between the front housing 100 and the lens module 300 will be described below.

[0072] The front housing 100 and the lens module 300 can be coupled to each other by welding. The front housing 100 and the lens module 300 can be laser welded.

[0073] The camera module 10 may include a joint 500 for coupling the front housing 100 to the lens module 300 (see [link]). Figure 3 The joint 500 can be referred to as a welded part. The joint 500 can be positioned between the lower surface of the flange 330 and the upper surface of the first body 130. The joint 500 can be positioned between the lower surface of the second region 336 and the upper surface of the first body 130. The joint 500 can be positioned between the first chamfered surface 137 and the second chamfered surface 337. The lower surface of the second region 336 and the upper surface of the first body 130 can be joined together by the joint 500. The outer surface of the joint 500 can protrude outward from the outer surface of the first body 130. The cross-sectional area of ​​the outer surface of the joint 500 can be larger than the cross-sectional area of ​​the outer surface of the first body 130. The outer surface of the first region 136 of the first body 130 can protrude outward from the outer surface of the joint 500. The cross-sectional area of ​​the outer surface of the first region 136 can be larger than the cross-sectional area of ​​the outer surface of the joint 500.

[0074] Since a portion of the side surface and the upper surface of the first body 130 are areas that have not undergone anodizing surface treatment, it has the advantage that welding with the flange 330 can be performed more easily. Similarly, since a portion of the side surface and the lower surface of the flange 330 are also areas that have not undergone anodizing surface treatment, welding can be performed more easily.

[0075] like Figure 4As shown, in the direction perpendicular to the optical axis, the thickness t1 of the protrusion 136 can be greater than the thickness t2 of the second region 336. Therefore, the heat generated during the welding process can be minimized from being transferred to the lens 350.

[0076] The lower surface of the second region 336 and the upper surface of the first body 130 facing the lower surface of the second region 336 in the optical axis direction can be spaced apart at least in the optical axis direction. Therefore, the joint 500 can be provided on a portion of the lower surface of the second region 336 and a portion of the upper surface of the first body 130, and the remaining portions of the lower surface of the second region 336 and the remaining portions of the upper surface of the first body 130 can be spaced apart in the optical axis direction. A first gap g1 can be formed between the lower surface of the second region 336 and the upper surface of the first body 130. The first gap g1 can be 15% or less of the thickness t3 of the first body 130 in the direction perpendicular to the optical axis direction. Therefore, welding processes for forming the joint 500 can be performed more easily.

[0077] The inner surface of the second region 336 and the outer surface of the protrusion 136 can be spaced apart from each other relative to the direction perpendicular to the optical axis. A second gap g2 can be formed between the inner surface of the second region 336 and the outer surface of the protrusion 136.

[0078] The inner surface of the protrusion 136 and the outer surface of the lens barrel body 310 can be spaced apart from each other relative to the direction perpendicular to the optical axis. A fourth gap g4 can be formed between the inner surface of the protrusion 136 and the outer surface of the lens barrel body 310.

[0079] The heat generated during the welding process can be minimized by using the second gap g2 and the fourth gap g4 to transfer the heat to the lens 350 inside the lens barrel body 310.

[0080] Meanwhile, the upper surface of the protrusion 136 and the lower surface of the flange 330, i.e., the lower surface of the first region 332, can be spaced apart in the optical axis direction. A third gap g3 can be formed between the upper surface of the protrusion 136 and the lower surface of the first region 332. The third gap g3 can be larger than the first gap g1.

[0081] According to the structure described above, since the welding method between the front housing and the lens module eliminates the need for adhesives or sealing components for joining, it offers the following advantages: manufacturing costs can be reduced due to the decrease in the number of parts, and assembly processes can be simplified. Furthermore, by forming a gap between the first body 130 and the flange 330, heat transfer to the lens 350 due to welding heat can be minimized, thereby preventing deformation of the lens 350 and ensuring reliable alignment with the image sensor 412.

[0082] In addition, since the optical axis distance between the lens module and the substrate module can be precisely adjusted before welding, it has the advantage of ensuring the optimal resolution value within the camera module.

[0083] Figure 5 It is a cross-sectional view of a camera device module based on existing technology; and Figure 6 It is a graph comparing the temperature inside the camera module according to an embodiment of the present invention with the temperature inside the camera module according to the prior art.

[0084] Reference Figure 5 This illustrates an example where the flange 1000 of the lens module in a camera device module according to the prior art is a straight line parallel to the optical axis.

[0085] Figure 6 Case 1 measurement based on Figure 5 The temperature of the lens in the coupling process of the front housing and lens module in the structure of the camera device module shown. Figure 6 Case 2 measures the temperature of the lens when the thickness of the second region 336 within the flange 330 is formed to be equal to or greater than the thickness of the protrusion 136. Figure 6 Case 3 measures the temperature of the lens according to an embodiment of the present invention when the thickness of the second region 336 in the flange 330 is formed to be less than the thickness of the protrusion 136.

[0086] Comparison Figure 6 As shown in cases 1 and 2, it can be confirmed that when the flange is formed as " "When the shape includes a first region and a second region that are perpendicular to each other, the temperature transmitted to the lens during the processing of the housing and lens module before joining is lower than when the flange is formed into a straight shape."

[0087] Comparison Figure 6 As shown in cases 2 and 3, it can be confirmed that by making the thickness of the protrusion 136 greater than the thickness of the second region 336, the temperature transmitted to the lens is reduced.

[0088] In the above description, all components constituting embodiments of the present invention are described as being combined or operated as a whole; however, the present invention is not necessarily limited to these embodiments. In other words, within the scope of the present invention, all components may selectively be operated in combination with one or more components. Furthermore, unless explicitly stated otherwise, the terms "comprising," "including," or "having" above mean that the corresponding component may be inherent and should therefore be understood to include other components rather than exclude them. Unless otherwise defined, all terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Commonly used terms, such as those defined in dictionaries, should be interpreted as consistent with the context of the relevant art and should not be interpreted in an idealized or overly formal sense unless explicitly defined in this invention.

[0089] The above description is merely an illustration of the technical concept of the present invention, and those skilled in the art can make various modifications and changes without departing from the basic characteristics of the present invention. Therefore, the embodiments disclosed in this invention are not intended to limit the technical concept of the present invention, but rather to describe the present invention, and the scope of the technical concept of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the appended claims, and all technical concepts within the equivalent scope should be interpreted as being included within the scope of the present invention.

Claims

1. A camera device module, comprising: Front housing; Lens module, which is coupled to the front housing; A substrate, the substrate being disposed on the lower side of the lens module; as well as A joint that couples the front housing to the lens module; The lens module includes a lens barrel body partially disposed within the front housing, a lens disposed within the lens barrel body, and a flange protruding outward from the lens barrel body. The front housing includes a first main body and a protrusion extending from the upper surface of the first main body. The flange includes a first region perpendicular to the optical axis and a second region extending from the first region along the optical axis. The joint portion is disposed between the second region and the first body.

2. A camera device module, comprising: Front housing; Lens module, which is coupled to the front housing; A substrate, the substrate being disposed on the lower side of the lens module; as well as A joint that couples the front housing to the lens module; The lens module includes a lens barrel body partially disposed within the front housing, a lens disposed within the lens barrel body, and a flange protruding outward from the lens barrel body. The front housing includes a first main body and a protrusion extending from the upper surface of the first main body. The flange includes a first region perpendicular to the optical axis and a second region extending from the first region along the optical axis. The thickness of the second region is less than the thickness of the protrusion.

3. The camera device module according to claim 1 or 2, in, The protrusion is configured to be spaced apart from the first region and the second region in the direction of the optical axis.

4. The camera device module according to claim 1 or 2, in, The front housing includes an untreated area and a surface-treated area treated by anodizing, and The upper surface of the first main body facing the first region is the untreated surface area.

5. The camera device module according to claim 1 or 2, in, The main body of the lens barrel includes an untreated area and a surface-treated area treated by anodizing, and The lower surface of the second region is an untreated area.

6. The camera device module according to claim 1 or 2, in, At least a portion of the lower surface of the second region is spaced apart from the upper surface of the first body in the optical axis direction.

7. The camera device module according to claim 4, in, A first gap is formed between the lower surface of the second region and the upper surface of the first body, and Wherein, the length of the first gap in the direction of the optical axis is 15% or less of the thickness of the first body.

8. The camera device module according to claim 1 or 2, in, A first chamfered surface is formed on the upper outer surface of the first body forming the joint, and A second chamfered surface is formed on the lower outer surface of the second region forming the joint.

9. The camera device module according to claim 1 or 2, in, A second gap is provided between the second region and the protrusion, spaced apart in a direction perpendicular to the optical axis.

10. The camera device module according to claim 1 or 2, in, A third gap, spaced apart in the optical axis direction, is provided between the protrusion and the first region.

Images