Aperture module and camera module including same

Abstract

The present disclosure relates to an aperture module including: an aperture body including a base portion and a holder guide portion extending from a side surface of the base portion; a magnet holder disposed on the holder guide portion and including an aperture magnet; and a magnet holder coupling portion coupling the magnet holder to the holder guide portion. The magnet holder coupling portion includes a protrusion protruding from a side surface of the magnet holder and a fastening portion formed at the holder guide portion and fastened to the protrusion. The present disclosure also relates to a camera module comprising an aperture module.

Description

Technical Field

[0001] The present disclosure relates to an aperture module and a camera module including the aperture module. Background Art

[0002] The camera module may be installed in portable electronic devices such as smart phones, tablet PCs, laptop computers, etc. As competition for product differentiation in portable electronic devices intensifies, the application of functions of general digital cameras to cameras of portable electronic devices is also increasing. The demand for obtaining a bokeh effect or a bright and clear image by controlling the amount of light passing through a variable aperture is also increasing.

[0003] A general digital camera may include a mechanical aperture that is driven to change the amount of incident light according to a photographing environment. However, in the case of a camera module applied to a small device such as a portable electronic device, it may be difficult to apply the mechanical aperture due to its structural characteristics and space limitations.

[0004] When the aperture module applied to the camera module is applied to a large-diameter model, the amount of impact applied to the aperture magnet bracket may increase due to the increased weight of the aperture driver. In addition, when the aperture module is applied to a large-diameter model, as the entire length of the aperture module increases, the length from the support point of the external force to the application point of the external force may increase, so that the amount of force generated increases. Therefore, when an external impact is applied to the aperture module, the degree of deformation and damage of the aperture module and the camera module including the aperture module may increase.

[0005] The above information is presented as background information only to assist with understanding the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with respect to the present disclosure. Utility Model Content

[0006] The purpose of providing this utility model summary is to introduce a selection of concepts in a concise form, and these concepts will be further described in the following detailed description. This utility model summary is not intended to identify the key features or essential features of the claimed subject matter, nor is it intended to be used to help determine the scope of the claimed subject matter.

[0007] In a general aspect, an aperture module includes: an aperture body including a base and a bracket guide portion extending from a side surface of the base; a magnet bracket seated on the bracket guide portion and including an aperture magnet; and a magnet bracket coupling portion that couples the magnet bracket to the bracket guide portion. The magnet bracket coupling portion includes a protrusion protruding from a side surface of the magnet bracket and a fastening portion formed at the bracket guide portion and fastened to the protrusion.

[0008] The holder guide portion may include a guide body having a quadrangular frame shape and an edge portion protruding from an edge of the guide body to guide reciprocating motion of the magnet holder, and the fastening portion may include a fastening groove formed at the edge portion corresponding to the protrusion.

[0009] The magnet holder coupling portion may further include a first auxiliary fastening portion extending from a lower surface of the magnet holder and inserted into a first fastening hole formed at the edge portion.

[0010] The holder guide portion may include a guide body having a quadrangular frame shape and an edge portion protruding from an edge of the guide body to guide reciprocating motion of the magnet holder, and the fastening portion may include a bent portion formed at the edge portion corresponding to the protrusion.

[0011] The bent portion may include a first branch portion extending parallel to the protruding direction of the protrusion, a second branch portion extending by bending at an end of the first branch portion, and a third branch portion bending at an end of the second branch portion to extend parallel to the first branch portion, and the protrusion may be surrounded by the first branch portion, the second branch portion and the third branch portion.

[0012] The second branch portion may face an end portion of the protrusion.

[0013] The magnet holder coupling portion may further include a second auxiliary fastening portion extending from the protrusion in parallel with the second branch portion and inserted into a second fastening hole formed at the third branch portion.

[0014] In another general aspect, a camera module includes: a housing having an internal space; a lens barrel accommodated in the internal space of the housing and including a plurality of lenses; and an aperture module disposed adjacent to the lens barrel and configured to adjust the size of an entrance aperture. The aperture module includes: an aperture body including a base and a bracket guide portion extending from the base; a magnet bracket disposed on the bracket guide portion and including an aperture magnet; and a magnet bracket coupling portion configured to reduce impact by coupling the magnet bracket to the bracket guide portion, wherein the magnet bracket coupling portion includes a protrusion protruding from a side surface of the magnet bracket and a fastening portion formed at the bracket guide portion and fastened to the protrusion.

[0015] The bracket guide portion may include a guide body and an edge portion provided at an edge of the guide body, and the fastening portion may include a fastening groove formed at the edge portion corresponding to the protrusion.

[0016] The magnet holder coupling portion may further include a first auxiliary fastening portion extending from a lower surface of the magnet holder and inserted into a first fastening hole formed at the edge portion.

[0017] The holder guide portion may include a guide body having a quadrangular frame shape and an edge portion protruding from an edge of the guide body to guide reciprocating motion of the magnet holder, and the fastening portion may include a bent portion formed at the edge portion corresponding to the protrusion.

[0018] The bent portion may include a first branch portion extending parallel to the protruding direction of the protrusion, a second branch portion extending by bending at an end of the first branch portion, and a third branch portion bending at an end of the second branch portion to extend parallel to the first branch portion, and the protrusion may be surrounded by the first branch portion, the second branch portion and the third branch portion.

[0019] The second branch portion may face an end portion of the protrusion.

[0020] The magnet holder coupling portion may further include a second auxiliary fastening portion extending from the protrusion in parallel with the second branch portion and inserted into a second fastening hole formed at the third branch portion.

[0021] The camera module may further include a lens driving module configured to drive the lens barrel. The lens driving module may include an automatic focusing portion and an optical image stabilization portion, the automatic focusing portion including a focusing bearing portion accommodating the lens barrel and a focusing driving portion configured to generate a driving force to move the focusing bearing portion in the optical axis direction, the optical image stabilization portion including a correction bearing portion configured to guide the movement of the lens barrel and a correction driving portion configured to generate a driving force to move the correction bearing portion in a direction perpendicular to the optical axis direction, wherein the correction bearing portion may be disposed inside the focusing bearing portion.

[0022] The shell may include a shell body, the shell body including four side walls connected to each other to form an internal space, the aperture module may also include an aperture driving part, the aperture driving part is configured to provide a driving force to adjust the size of the incident hole, the aperture driving part may include an aperture magnet and an aperture coil facing each other and providing magnetic force, and the aperture coil of the aperture driving part may be installed at any one of the four side walls of the shell body.

[0023] The focus driving section may be installed at another side wall among the four side walls, and the correction driving section may be installed at the remaining two side walls among the four side walls.

[0024] Other features and aspects will become apparent from the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an exploded perspective view of a camera module according to an embodiment.

[0026] Figure 2yes Figure 1 A stereoscopic view of an aperture module in a camera module.

[0027] Figure 3 yes Figure 2 Exploded perspective view of the aperture module.

[0028] Figure 4 yes Figure 2 Front view of the aperture module.

[0029] Figure 5 yes Figure 2 An enlarged side surface view of the aperture module.

[0030] Figure 6 is an exploded perspective view of a camera module according to another embodiment.

[0031] Figure 7 yes Figure 6 A stereoscopic view of an aperture module in a camera module.

[0032] Figure 8 yes Figure 7 Exploded perspective view of the aperture module.

[0033] Fig. 9 yes Figure 7 Front view of the aperture module.

[0034] Fig.10 yes Figure 7 An enlarged side surface view of the aperture module.

[0035] Fig.11 yes Figure 7 A partially enlarged stereoscopic image of the aperture module.

[0036] Fig.12 is an enlarged side view of the aperture module, used to illustrate the impact when an impact is applied to Figure 7 The aperture module is operated by the magnet bracket connection part.

[0037] Throughout the drawings and detailed description, unless otherwise described, the same reference numerals refer to the same elements. For purposes of clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative sizes, proportions, and depictions of elements in the drawings may be exaggerated. DETAILED DESCRIPTION

[0038] Hereinafter, although examples of the present disclosure will be described in detail with reference to the accompanying drawings, it should be noted that the examples are not limited thereto.

[0039] The following specific embodiments are provided to help the reader gain a comprehensive understanding of the methods, devices and / or systems described herein. However, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent after understanding the present disclosure. For example, the order of operations described herein is merely an example, and except for operations that must occur in a specific order, it is not limited to the order set forth herein, but can be changed, which will be apparent after understanding the present disclosure. In addition, for greater clarity and brevity, descriptions of features known in the art may be omitted.

[0040] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein are provided merely to illustrate some of the many possible ways to implement the methods, devices, and / or systems described herein that will be apparent after understanding the present disclosure.

[0041] Throughout the specification, when an element such as a layer, a region, or a substrate is described as being “on,” “connected to,” or “coupled to” another element, the element may be directly “on,” “connected to,” or “coupled to” the other element, or one or more other elements may be present between the element and the other element. Conversely, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, no other elements may be present between the element and the other element.

[0042] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items; similarly, "at least one" includes any one of the associated listed items and any combination of any two or more items.

[0043] Although terms such as "first", "second" and "third" may be used herein to describe various members, components, regions, layers or portions, these members, components, regions, layers or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer or portion from another member, component, region, layer or portion. Therefore, without departing from the teachings of the examples described herein, the first member, first component, first region, first layer or first portion mentioned in these examples may also be referred to as the second member, second component, second region, second layer or second portion.

[0044] Furthermore, throughout the specification, the phrase “in a plan view” or “on a plane” means observing the target portion from the top, and the phrase “in a cross-sectional view” or “on a cross section” means observing a cross section formed by vertically cutting the target portion from the side.

[0045] Spatially relative terms such as "above", "above", "below", "below", etc. may be used herein for descriptive convenience to describe the relationship of one element relative to another element as shown in the accompanying drawings. In addition to covering the orientations depicted in the accompanying drawings, these spatially relative terms are intended to also cover different orientations of the device in use or operation. For example, if the device in the accompanying drawings is flipped, an element described as being "above" or "above" another element relative to the other element will be "below" or "below" the other element relative to the other element. Therefore, depending on the spatial orientation of the device, the term "above" covers both orientations of "above" and "below". The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used herein should be interpreted accordingly.

[0046] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the terms "a", "an" and "the" are intended to include plural forms as well. The terms "include", "comprise" and "have" indicate the presence of the features, numbers, operations, components, elements and / or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, operations, components, elements and / or combinations thereof.

[0047] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0048] It should be noted that herein, use of the word “may” with respect to an example, such as regarding what an example may include or implement, means that there is at least one example in which such feature is included or implemented, and all examples are not limited thereto.

[0049] The features of the examples described herein may be combined in various ways that will be apparent after understanding the present disclosure. In addition, although the examples described herein have various configurations, other configurations that will be apparent after understanding the present disclosure are also possible.

[0050] Embodiments are to provide an aperture module that can ensure reliability by alleviating external impact to minimize a degree of deformation and damage, and provide a camera module including the aperture module.

[0051] However, the problems to be solved by the embodiments are not limited to the above-mentioned problems, and various extensions can be made within the scope of the technical ideas included in the embodiments.

[0052] Figure 1 is an exploded perspective view of a camera module according to an embodiment.

[0053] like Figure 1 As shown in , the camera module according to the embodiment includes a housing 100 , a lens barrel 200 , a lens driving module 300 , an aperture module 400 , and a cover 500 .

[0054] The housing 100 may include: a housing body 110, the upper and lower parts of which are open to have an internal space; and a circuit board (or circuit substrate) 120, which is arranged to cover the side surface of the housing body 110. The housing body 110 may include four side walls connected to each other to form the internal space. The four side walls may include a first side wall 111 and a second side wall 112 facing each other, and a third side wall 113 and a fourth side wall 114 connecting the first side wall 111 and the second side wall 112 and facing each other.

[0055] The lens barrel 200, the lens driving module 300, and the aperture module 400 may be accommodated in the inner space of the housing 100. An image sensor unit (or image sensor portion) (not shown) including an image sensor that converts incident light into an electrical signal may be provided at a lower portion of the housing 100.

[0056] The lens barrel 200 may have a hollow cylindrical shape so as to accommodate a plurality of lenses for capturing an image of an object therein. The plurality of lenses are installed in the lens barrel 200 along an optical axis. The plurality of lenses may be arranged as many as necessary according to the design of the lens barrel 200, and each lens may have optical properties such as the same or different refractive indexes.

[0057] The lens driving module 300 may be a device that moves the lens barrel 200 , and may include an auto focus (AF) part 310 that adjusts a focus, an optical image stabilization (OIS) part 320 that corrects hand shake, and a rolling member 330 .

[0058] The automatic focusing (AF) part 310 may adjust a focus by moving the lens barrel 200 in the optical axis direction Z or implement a zoom function.

[0059] The auto focus (AF) part 310 includes a focus bearing part 311 that accommodates the lens barrel 200 and a focus driving part 312 that generates a driving force to move the lens barrel 200 and the focus bearing part 311 in the optical axis direction Z. The focus driving part 312 may include a focus driving magnet 312a installed on one side surface of the focus bearing part 311 and a focus driving coil 312b installed on the first side wall 111 of the housing body 110 and connected to the circuit board 120. The focus driving coil 312b may be installed at the first side wall 111 of the housing body 110 to face the focus driving magnet 312a.

[0060] The optical image stabilization (OIS) portion 320 may correct hand shake during photographing by moving the lens barrel 200 in a direction X or Y perpendicular to the optical axis direction Z.

[0061] The optical image stabilization (OIS) portion 320 may include a correction bearing portion 321 guiding the movement of the lens barrel 200 and a correction driving portion 322 generating a driving force to move the correction bearing portion 321 in a direction X or Y perpendicular to the optical axis direction Z.

[0062] The correction bearing part 321 may be received in the focusing bearing part 311 to be aligned along the optical axis direction Z, and may guide the movement of the lens barrel 200. The correction bearing part 321 may have a central opening into which the lens barrel 200 may be inserted.

[0063] The correction drive part 322 may include a first correction drive part 31 and a second correction drive part 32, the first correction drive part 31 includes a first correction drive magnet 31a and a first correction drive coil 31b, and the second correction drive part 32 includes a second correction drive magnet 32a and a second correction drive coil 32b. The first correction drive magnet 31a and the second correction drive magnet 32a may be mounted on the correction bearing part 321, and the first correction drive coil 31b and the second correction drive coil 32b facing the first correction drive magnet 31a and the second correction drive magnet 32a, respectively, may be fixedly mounted on the second side wall 112 and the third side wall 113 of the shell body 110, respectively, via the circuit board 120. The first correction drive part 31 may generate a driving force in a first direction X perpendicular to the optical axis direction Z, and the second correction drive part 32 may generate a driving force in a second direction Y perpendicular to the optical axis direction Z and the first direction X.

[0064] The rolling member 330 may have a spherical shape and may be installed between the focus bearing portion 311 and the housing 100 to reduce friction between the focus bearing portion 311 and the housing 100 when the focus bearing portion 311 moves in the optical axis direction Z. In addition, the rolling member 330 may be installed between the focus bearing portion 311 and the correction bearing portion 321 to reduce friction between the correction bearing portion 321 and the correction driving portion 322.

[0065] The cover 500 may be coupled to the housing 100 to surround an outer surface of the housing 100. The cover 500 may protect the lens barrel 200, the lens driving module 300, and the aperture module 400 disposed in the inner space of the housing 100 from external physical impact or may shield electromagnetic waves.

[0066] The aperture module 400 may selectively change the amount of light incident on the lens barrel 200. The aperture module 400 may be disposed at the upper end of the lens driving module 300, and may be disposed in front of the lens driving module 300 based on the light incident direction. The aperture module 400 may be combined with the lens driving module 300 to move together with the lens driving module 300 in the optical axis direction Z, the first direction X, and the second direction Y. The aperture module 400 may allow a relatively small amount of light to enter the lens barrel 200 in a high lighting environment, and may allow a relatively large amount of light to enter the lens barrel 200 in a low lighting environment, so that image quality can be consistently maintained even under various lighting conditions.

[0067] In the following, reference will be made to Figures 2 to 5 Describe the aperture module in detail.

[0068] Figure 2 yes Figure 1 A three-dimensional image of the aperture module in the camera module. Figure 3 yes Figure 2 An exploded perspective view of the aperture module. Figure 4 yes Figure 2 The front view of the aperture module, and Figure 5 yes Figure 2 An enlarged side surface view of the aperture module.

[0069] like Figures 2 to 4 As shown, the aperture module 400 includes an aperture body 410 , a magnet holder 420 , a magnet holder coupling portion 430 , an aperture driving portion 440 , aperture blades 450 , a gap spacer 460 , and an aperture cover 470 .

[0070] The aperture body 410 may include a base 411 and a holder guide portion 412 .

[0071] The base 411 may have a substantially cylindrical shape with a through hole (or through hole). The gap spacer 460, the aperture blades 450, and the aperture cover 470 may be sequentially stacked on the base 411 in the optical axis direction Z. The base 411 may be combined with the aperture cover 470 to protect the aperture blades 450 and the gap spacer 460 inside the base 411 and the aperture cover 470 from external influences.

[0072] The bracket guide portion 412 may be provided by extending from a side surface of the base 411. The bracket guide portion 412 may include a guide body 412a and an edge portion 412b.

[0073] The guide body 412 a may have a quadrangular frame shape extending in the optical axis direction Z from a side surface of the base 411 .

[0074] Since the edge portion 412b protrudes from the edge of the guide body 412a by a predetermined thickness, it is easy to place the magnet holder 420. For example, the edge portion 412b may protrude from the edge of the guide body 412a in a direction perpendicular to the optical axis direction Z (for example, in the second direction Y). The edge portion 412b may guide the reciprocating motion of the magnet holder 420 in the first direction X.

[0075] The magnet holder 420 may be disposed on the holder guide portion 412 of the aperture body 410, and the aperture magnet 441 may be installed on the magnet holder 420. The aperture ball 421 may be installed between the guide body 412a and the magnet holder 420 to reduce friction between the guide body 412a and the magnet holder 420 and to make the reciprocating motion of the magnet holder 420 smooth.

[0076] The magnet holder coupling portion 430 may couple the magnet holder 420 to the holder guide portion 412 of the aperture body 410. The magnet holder coupling portion 430 may include a protrusion 431, a fastening portion 432, and a first auxiliary fastening portion 433.

[0077] The protrusion 431 may protrude in the first direction X from a side surface of the magnet holder 420 .

[0078] The fastening portion 432 may be formed at the bracket guide portion 412, and may be fastened to the protrusion 431. The fastening portion 432 may be a fastening groove formed at the edge portion 412b to correspond to the protrusion 431.

[0079] The first auxiliary fastening portion 433 may extend from the lower surface of the magnet holder 420 in the optical axis direction Z to be inserted into the first fastening hole FH1 formed at the edge portion 412b. The first fastening hole FH1 may be formed at the edge portion 412b disposed below the aperture magnet 441 among the edge portions 412b.

[0080] By installing the magnet holder coupling portion 430 coupling the magnet holder 420 to the holder guide portion 412 of the aperture body 410, the movement of the magnet holder 420 and the aperture magnet 441 in the optical axis direction Z due to external impact, drop impact, etc. can be restricted. Therefore, the impact applied to the aperture module 400 can be mitigated, so that the degree of deformation and damage of the aperture module 400 is minimized.

[0081] In addition, by reducing the impact on the aperture module 400, a stronger impact can be withstood, thereby ensuring the reliability of the camera module.

[0082] In addition, the magnet holder coupling portion 430 may restrict movement of the magnet holder 420 and the aperture magnet 441 in the optical axis direction Z due to impact, thereby preventing the first auxiliary fastening portion 433 from being separated from the first fastening hole FH1 .

[0083] In addition, by restricting the movement of the magnet holder 420 and the aperture magnet 441 in the optical axis direction Z due to impact, the aperture ball 421 can be prevented from being separated from the guide body 412a.

[0084] On the other hand, the aperture driving part 440 may include an aperture magnet 441 and an aperture coil 442. The aperture driving part 440 may provide a driving force for adjusting the size of the incident hole by rotating the aperture blade 450. The aperture magnet 441 may be mounted on the magnet holder 420, and the aperture coil 442 may be mounted on the fourth side wall 114 of the housing body 110.

[0085] The aperture blade 450 may be disposed at an upper portion of the aperture body 410. The aperture blade 450 may include a first blade 451 and a second blade 452 that partially overlap each other and rotate and move in opposite directions. The first blade 451 may be disposed at the optical axis and may have a first guide groove 451a in an arc shape, and the second blade 452 may be disposed at the optical axis and may have a second guide groove 452a in an arc shape. The first guide groove 451a and the second guide groove 452a may overlap each other to form an incident hole IH. The aperture blade 450 may be connected to the magnet holder 420, and the size of the incident hole IH may be adjusted by converting the reciprocating linear motion of the magnet holder 420 into a rotational motion.

[0086] In the present embodiment, the iris blade 450 includes two blades overlapping each other to form the entrance hole IH, but the present disclosure is not limited thereto, and an embodiment in which three or more iris blades overlap to form the entrance hole IH is also possible.

[0087] The gap spacer 460 may adjust the maximum size of the incident hole. The gap spacer 460 may be disposed adjacent to the aperture blades 450. The gap spacer 460 may have a through hole (or through hole) PH, the size of which is smaller than the maximum size of the incident hole IH formed by the aperture blades 450 and larger than the middle size of the incident hole IH. The through hole PH of the gap spacer 460 may be aligned with the incident hole IH formed by the aperture blades 450 in the optical axis direction Z.

[0088] The maximum incident hole realized by the aperture module 400 of this embodiment may have the size of the through hole PH of the gap spacer 460. In order to deal with the situation that the shape of the incident hole cannot maintain the expected shape due to tolerance, etc., the gap spacer 460 is used to set the maximum size of the incident hole.

[0089] The iris cover 470 may be disposed at an upper portion of the iris blade 450 , and may be fixed to the iris body 410 .

[0090] On the other hand, in the embodiment, the fastening portion 432 of the magnet holder connecting portion 430 is a fastening groove formed at the edge portion 412b, but another embodiment in which the fastening portion 432 of the magnet holder connecting portion 430 is a bent portion formed at the edge portion 412b is also possible.

[0091] In the following, reference Figures 6 to 10 , an aperture module and a camera module including the same according to another embodiment of the present disclosure will be described in detail.

[0092] Figure 6 is an exploded perspective view of a camera module according to another embodiment, Figure 7 yes Figure 6 A three-dimensional image of the aperture module in the camera module. Figure 8 yes Figure 7 An exploded perspective view of the aperture module. Fig. 9 yes Figure 7 The front view of the aperture module, and Fig.10 yes Figure 7 An enlarged side surface view of the aperture module.

[0093] In addition to the structure of the magnet support coupling portion 430, Figures 6 to 10 Another embodiment shown in Figures 1 to 5 The embodiments shown in are substantially the same, so that repeated description thereof will be omitted.

[0094] like Figures 6 to 10 As shown, a camera module according to another embodiment of the present disclosure includes a housing 100 , a lens barrel 200 , a lens driving module 300 , an aperture module 400 , and a cover 500 .

[0095] The aperture module 400 includes an aperture body 410 , a magnet holder 420 , a magnet holder coupling portion 430 , an aperture driving portion 440 , an aperture blade 450 , a gap spacer 460 , and an aperture cover 470 .

[0096] The aperture body 410 may include a base 411 and a bracket guide portion 412. The bracket guide portion 412 may include a guide body 412a and an edge portion 412b. Since the edge portion 412b protrudes from the edge of the guide body 412a by a predetermined thickness, it is easy to place the magnet bracket 420. The edge portion 412b may guide the reciprocating motion of the magnet bracket 420 in the first direction X. The edge portion 412b may not extend under the aperture magnet 441. Therefore, since the size of the aperture magnet 441 can be increased, the driving force of the aperture driving portion 440 can be improved.

[0097] The magnet holder coupling portion 430 may couple the magnet holder 420 to the holder guide portion 412 of the aperture body 410. The magnet holder coupling portion 430 may include a protrusion 431, a fastening portion 432, and a second auxiliary fastening portion 434.

[0098] The protrusion 431 may protrude in the first direction X from a side surface of the magnet holder 420 .

[0099] The fastening portion 432 may include a bent portion formed at the edge portion 412b corresponding to the protrusion 431. The bent portion may include a first branch portion 432a, a second branch portion 432b, and a third branch portion 432c connected to each other.

[0100] The first branch portion 432 a may be bent at the edge portion 412 b to extend parallel to the protruding direction of the protrusion 431 (ie, the first direction X).

[0101] The second branch portion 432 b may be bent at an end of the first branch portion 432 a to extend parallel to the optical axis direction Z. The second branch portion 432 b may face an end of the protrusion 431 .

[0102] The third branch portion 432c may be bent at an end of the second branch portion 432b to extend parallel to the first branch portion 432a.

[0103] Therefore, the protrusion 431 is surrounded by the first branch portion 432a, the second branch portion 432b, and the third branch portion 432c. Therefore, since the movement of the protrusion 431 in the optical axis direction Z is restricted by the curved portion, the movement of the magnet holder 420 and the aperture magnet 441 in the optical axis direction Z can be restricted. Therefore, even when an impact is applied to the aperture module 400, the movement of the magnet holder 420 and the aperture magnet 441 in the optical axis direction Z can be restricted, thereby alleviating the impact. Therefore, the degree of deformation and damage of the aperture module 400 can be minimized.

[0104] Fig.11 yes Figure 7 A partially enlarged stereoscopic image of the aperture module.

[0105] like Fig.11 As shown in , the second auxiliary fastening portion 434 may extend from the protrusion 431 in parallel with the second branch portion 432b. The second auxiliary fastening portion 434 may be inserted into the second fastening hole FH2 formed at the third branch portion 432c. Since the second fastening hole FH2 extends along the third branch portion 432c in an elongated shape, the second fastening hole FH2 may guide the reciprocating motion of the protrusion 431 along the first direction X.

[0106] The magnet holder coupling portion 430 may restrict movement of the magnet holder 420 and the aperture magnet 441 in the optical axis direction Z due to impact, thereby preventing the second auxiliary fastening portion 434 from being separated from the second fastening hole FH2 .

[0107] Fig.12 is an enlarged side view of the aperture module, used to illustrate the impact when an impact is applied to Figure 7 The aperture module is operated by the magnet bracket connection part.

[0108] like Fig.12 As shown in FIG, the magnet holder coupling portion 430 can limit the movement of the magnet holder 420 and the aperture magnet 441 in the optical axis direction Z. Therefore, even when an impact is applied to the aperture module 400, the impact applied to the magnet holder 420 and the aperture magnet 441 can be mitigated, thereby minimizing the degree of deformation and damage of the aperture module 400.

[0109] In addition, the magnet holder coupling portion 430 may restrict movement of the magnet holder 420 and the aperture magnet 441 in the optical axis direction Z due to impact, thereby preventing the aperture ball 421 from being separated from the guide body 412 a.

[0110] According to an embodiment, the movement of the magnet holder and the aperture magnet in the optical axis direction caused by impact such as external impact, drop impact, etc. can be restricted. Therefore, the impact applied to the aperture module can be mitigated, thereby minimizing the degree of deformation and damage of the aperture module.

[0111] In addition, by reducing the impact on the aperture module, it can withstand stronger impacts, thereby ensuring the reliability of the camera module.

[0112] In addition, the movement of the magnet holder and the aperture magnet in the optical axis direction caused by impact can be restricted, thereby preventing the aperture ball from being separated from the guide body.

[0113] Although specific examples have been shown and described above, it will be apparent after understanding the present disclosure that various changes in form and detail may be made to these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are understood in a descriptive sense only and not for limiting purposes. The description of the features or aspects in each example should be considered to be applicable to similar features or aspects in other examples. If the described techniques are performed in a different order, and / or if the components in the described system, architecture, device or circuit are replaced or supplemented in a different manner and / or by other components or their equivalents, appropriate results can still be achieved. Therefore, the scope of the present disclosure is not limited by specific embodiments, but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents should be understood to be included in the present disclosure.

Claims

1. An aperture module, characterized in that: The aperture module comprises: an aperture body including a base and a support guide portion extending from a side surface of the base; a magnet holder disposed on the holder guide portion and including an aperture magnet; and a magnet holder coupling portion, the magnet holder coupling portion coupling the magnet holder to the holder guide portion, Wherein, the magnet support connection part comprises: a protrusion protruding from a side surface of the magnet holder; and A fastening portion is formed at the bracket guide portion and fastened to the protrusion.

2. The aperture module according to claim 1, characterized in that: The holder guide portion includes a guide body having a quadrangular frame shape and an edge portion protruding from an edge of the guide body to guide reciprocating motion of the magnet holder, and the fastening portion includes a fastening groove formed at the edge portion corresponding to the protrusion.

3. The aperture module according to claim 2, characterized in that: The magnet holder coupling portion further includes a first auxiliary fastening portion extending from a lower surface of the magnet holder and inserted into a first fastening hole formed at the edge portion.

4. The aperture module according to claim 1, characterized in that: The holder guide portion includes a guide body having a quadrangular frame shape and an edge portion protruding from an edge of the guide body to guide reciprocating motion of the magnet holder, and the fastening portion includes a bent portion formed at the edge portion corresponding to the protrusion.

5. The aperture module according to claim 4, characterized in that: The bent portion includes a first branch portion extending parallel to a protruding direction of the protrusion, a second branch portion extending by bending at an end of the first branch portion, and a third branch portion bent at an end of the second branch portion to extend parallel to the first branch portion, and the protrusion is surrounded by the first branch portion, the second branch portion, and the third branch portion.

6. The aperture module according to claim 5, characterized in that: The second branch portion faces an end portion of the protrusion.

7. The aperture module according to claim 5, characterized in that: The magnet holder coupling portion further includes a second auxiliary fastening portion extending from the protrusion in parallel with the second branch portion and inserted into a second fastening hole formed at the third branch portion.

8. A camera module, characterized in that The camera module comprises: A housing having an internal space; a lens barrel accommodated in the internal space of the housing and including a plurality of lenses; and an aperture module, disposed adjacent to the lens barrel and configured to adjust the size of the entrance aperture, Wherein, the aperture module comprises: an aperture body including a base and a support guide portion extending from the base; a magnet holder disposed on the holder guide portion and including an aperture magnet; and a magnet holder coupling portion configured to reduce impact by coupling the magnet holder to the holder guide portion, Wherein, the magnet holder coupling portion includes a protrusion protruding from a side surface of the magnet holder and a fastening portion formed at the holder guide portion and fastened to the protrusion.

9. The camera module according to claim 8, characterized in that: The bracket guide portion includes a guide body and an edge portion provided at an edge of the guide body, and the fastening portion includes a fastening groove formed at the edge portion corresponding to the protrusion.

10. The camera module according to claim 9, characterized in that: The magnet holder coupling portion further includes a first auxiliary fastening portion extending from a lower surface of the magnet holder and inserted into a first fastening hole formed at the edge portion.

11. The camera module according to claim 8, characterized in that: The holder guide portion includes a guide body having a quadrangular frame shape and an edge portion protruding from an edge of the guide body to guide reciprocating motion of the magnet holder, and the fastening portion includes a bent portion formed at the edge portion corresponding to the protrusion.

12. The camera module according to claim 11, characterized in that: The bent portion includes a first branch portion extending parallel to a protruding direction of the protrusion, a second branch portion extending by bending at an end of the first branch portion, and a third branch portion bent at an end of the second branch portion to extend parallel to the first branch portion, and the protrusion is surrounded by the first branch portion, the second branch portion, and the third branch portion.

13. The camera module according to claim 12, characterized in that: The second branch portion faces an end portion of the protrusion.

14. The camera module according to claim 12, wherein: The magnet holder coupling portion further includes a second auxiliary fastening portion extending from the protrusion in parallel with the second branch portion and inserted into a second fastening hole formed at the third branch portion.

15. The camera module according to claim 8, characterized in that: The camera module further includes a lens driving module configured to drive the lens barrel, Wherein, the lens driving module comprises: an automatic focusing section including a focus bearing portion, the focus bearing portion accommodating the lens barrel, and a focus driving portion configured to generate a driving force to move the focus bearing portion in an optical axis direction; and an optical image stabilization section including a correction bearing portion configured to guide the movement of the lens barrel and a correction driving portion configured to generate a driving force to move the correction bearing portion in a direction perpendicular to the optical axis direction, Wherein, the correction bearing part is arranged inside the focusing bearing part.

16. The camera module according to claim 15, characterized in that: The housing includes a housing body including four side walls connected to each other to form the inner space. The aperture module further comprises an aperture driving part, and the aperture driving part is configured to provide a driving force to adjust the size of the incident hole. The aperture driving part includes the aperture magnet and the aperture coil facing each other and providing magnetic force, and the aperture coil of the aperture driving part is installed at any one of the four side walls of the housing body.

17. The camera module according to claim 16, characterized in that: The focus driving section is installed at another side wall among the four side walls, and the correction driving section is installed at the remaining two side walls among the four side walls.

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