Reflection module and camera module including same

Abstract

A reflective module is provided. The reflection module includes: a housing; a reflective member configured to rotate in the housing about a first axis; a driving unit configured to rotate the reflecting member about a first axis; and a pair of magnetic members arranged to face each other in a direction between the housing and the reflecting member, in which the driving unit includes a driving magnet and a driving coil facing each other in a direction different from a direction in which the pair of magnetic members face each other, and in which the first shaft passes through the reflecting member. A camera module including the reflective module is also provided.

Description

[0001] Cross-reference to related applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2024-0073891, filed on June 5, 2024, with the Korean Intellectual Property Office, and Korean Patent Application No. 10-2024-0138443, filed on October 11, 2024, the entire disclosure of which is incorporated herein by reference for all purposes. Technical Field

[0003] The following disclosure relates to a reflection module and a camera module including the reflection module. Background Technology

[0004] Camera modules used in mobile devices have been manufactured to offer performance comparable to that of a typical camera.

[0005] For example, camera modules used in mobile devices may include reflective elements. Because reflective elements bend the path of light, the light path can be sufficiently extended without increasing the thickness of the mobile device, thereby improving the performance of the camera module.

[0006] When optical image stabilization (OIS) is performed on a camera module, the reflector can be configured to rotate while mounted on another component. In the example, the camera module may include a ball bearing that supports the rotation of the reflector. The ball bearing acts similarly to a wheel and can assist the movement of the reflector with relatively small force. However, depending on the mounting position of the ball bearing, it may be significantly affected by forces that impede the drive, which could in turn hinder smooth operation. Summary of the Invention

[0007] The summary portion of this invention is intended to provide a brief overview of the chosen concepts, which will be further described in the detailed description portion below. This summary portion is not intended to identify key or essential features of the claimed subject matter, nor is it intended to help determine the scope of the claimed subject matter.

[0008] In general, the reflective module includes: a housing; a reflective member configured to rotate within the housing about a first axis; a drive unit configured to rotate the reflective member about the first axis; and a pair of magnetic members arranged to face each other in a direction between the housing and the reflective member, wherein the drive unit includes a drive magnet and a drive coil facing each other in a direction different from the direction in which the pair of magnetic members face each other, and wherein the first axis passes through the reflective member.

[0009] One of the pair of magnetic members and the driving magnet can be disposed on different sides of the bearing part, respectively.

[0010] The reflection module can further include a reflection bracket on which the reflection member is disposed, and a bearing part on which the reflection bracket is supported, wherein the bearing part is configured to rotate together with the reflection member and the reflection bracket about the first axis while being disposed in the housing.

[0011] One of the pair of magnetic members and the driving magnet can be disposed on different sides of the bearing part, respectively.

[0012] The reflection module can further include a sensing magnet disposed in the bearing part in parallel with the driving magnet, and a position sensor disposed in the housing to face the sensing magnet.

[0013] A plurality of ball members can be disposed between the housing and the bearing part, the plurality of ball members can include a pivot ball through which the first axis passes, and a plurality of guide balls spaced apart from the pivot ball, and a distance between one of the pair of magnetic members and the pivot ball can be less than a distance between the one of the pair of magnetic members and the guide balls.

[0014] The plurality of guide balls can include two ball members, and an angle between the two ball members centered on the pivot ball is an acute angle.

[0015] The magnetic member of the pair of magnetic members disposed on the bearing part can be disposed within a support area formed by connecting the plurality of ball members.

[0016] The reflection bracket can rotate together with the reflection member about a second axis perpendicular to the first axis.

[0017] The reflection module can further include a buffer member disposed in the housing, wherein the buffer member can be disposed to protrude toward the bearing part in a direction parallel to the first axis, and the buffer member can be spaced apart from the pivot ball of the plurality of ball members in a direction of the second axis perpendicular to the first axis, and the first axis is interposed between the buffer members.

[0018] In a general aspect, a reflection module includes a housing having an internal space, a bearing part rotatably supported in the internal space, a reflection member disposed on the bearing part, and three ball members disposed between the housing and the bearing part and configured to support rotation of the bearing part, wherein a triangle formed by connecting the three ball members is an acute triangle.

[0019] The reflection module can further include a pair of magnetic members disposed on surfaces of the housing and the carrying part facing each other, respectively, and three ball members interposed between the surfaces of the housing and the carrying part facing each other, and the pair of magnetic members can be configured to generate magnetic attraction, wherein the pair of magnetic members can be disposed such that a center of the magnetic attraction formed by the pair of magnetic members is located within an acute triangle.

[0020] The pair of magnetic members can include a traction magnet disposed on the carrying part, and a traction yoke disposed in the housing to face the traction magnet.

[0021] The three ball members can include a pivot ball through which a rotation axis of the carrying part passes, and two guide balls spaced apart from the pivot ball, wherein the traction magnet is disposed in a position in which a distance between a center of the traction magnet and the pivot ball is less than a distance between the center of the traction magnet and the two guide balls.

[0022] The center of the traction magnet can be spaced apart from the pivot ball in a direction perpendicular to the rotation axis of the carrying part.

[0023] The camera module can include the reflection module and a lens module including a plurality of lenses configured to refract light passing through the reflection module.

[0024] In a general aspect, a reflection module includes a housing having an internal space, a carrying part disposed in the internal space, a reflection bracket disposed on the carrying part, and a reflection member mounted on the reflection bracket, wherein the housing includes a buffer member protruding toward the carrying part, and wherein the carrying part includes an accommodation portion configured to accommodate the buffer member.

[0025] The carrying part can be rotatable about a first axis with respect to the housing, and the reflection bracket can be rotatable about a second axis perpendicular to the first axis with respect to the carrying part and the housing.

[0026] The reflection module can further include a pivot ball and a plurality of guide balls, the first axis passing through the pivot ball, the plurality of guide balls being spaced apart from the pivot ball, wherein the pivot ball and the plurality of guide balls can be arranged between the carrying part and the housing.

[0027] The buffer member can be disposed in a plurality, and the plurality of buffer members can be spaced apart from each other, and the pivot ball is disposed between the plurality of buffer members.

[0028] The pivot ball and the plurality of buffer members can be arranged in a direction parallel to the second axis.

[0029] The buffer member can be spaced apart from the reflection bracket in a direction parallel to the first axis.

[0030] The reflection module can further include a support frame disposed at least partially within the housing, wherein the buffer member can be disposed on the support frame.

[0031] The reflection module can further include a first driving unit including a first driving magnet and a first driving coil, and configured to generate a driving force to rotate the bearing portion about the first axis, and a pair of magnetic members respectively disposed on the bearing portion and the housing, and configured to generate a magnetic force to press the bearing portion against the housing, wherein directions in which the first driving magnet and the first driving coil face each other are perpendicular to a direction in which the pair of magnetic members face each other.

[0032] The first driving magnet and the first driving coil can face each other in a direction parallel to the second axis, and the pair of magnetic members can face each other in a direction parallel to the first axis.

[0033] The camera module can include the reflection module and a lens module including a plurality of lenses configured to refract light passing through the reflection module.

[0034] Other features and aspects will be apparent from the accompanying drawings and from the detailed description which follows. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a perspective view of an exemplary camera module according to one or more embodiments.

[0036] Figure 2 is an internal perspective view of an exemplary camera module according to one or more embodiments.

[0037] Figure 3 is a schematic exploded perspective view of an exemplary camera module according to one or more embodiments.

[0038] Figure 4A is a cross-sectional view taken along line I-I' of Figure 1

[0039] Figure 4B is a cross-sectional view taken along line II-II' of Figure 1

[0040] Figure 5 is an exploded perspective view of an exemplary camera module according to one or more embodiments.

[0041] Figure 6 is a perspective view of a housing according to one or more embodiments.

[0042] Figure 7 is a perspective view of a main substrate according to one or more embodiments.

[0043] Figure 8 is a perspective view showing a main substrate coupled to a housing according to one or more embodiments.

[0044] Figure 9 ​​is a perspective view of a reflective module according to one or more embodiments.

[0045] Figure 10A is an exploded perspective view of a reflective module according to one or more embodiments.

[0046] Figure 10B is an exploded perspective view of a reflective module viewed from a different angle than Figure 10A

[0047] Figure 11 is a cross-sectional view taken along line III-III' of Figure 9

[0048] Figure 12 is a bottom perspective view of a reflective module according to one or more embodiments.

[0049] Figure 13 is a bottom view of a reflective module (carrier) according to one or more embodiments.

[0050] Figure 14 is an exploded perspective view of a housing and a carrier according to one or more embodiments.

[0051] Figure 15 is a cross-sectional view taken along line IV-IV' of Figure 9

[0052] is an exploded perspective view of an exemplary lens module according to one or more embodiments. Figure 16

[0053] is a bottom exploded perspective view of an exemplary lens module according to one or more embodiments. Figure 17 Throughout the drawings and detailed description, unless otherwise described, like reference characters designate like elements. The drawings can not be to scale, and the relative dimensions, proportions, and descriptions of the elements in the drawings can be exaggerated for clarity, illustration, and convenience.

[0054] DETAILED DESCRIPTION

[0055] ​​​The following detailed description is presented to aid the reader in gaining a comprehensive understanding of the methods, apparatuses, and / or systems described herein. However, various changes, modifications, and / or equivalents of the methods, apparatuses, and / or systems described herein could be made by those having ordinary skill in the art after having the benefit of this disclosure, and what is described herein is meant to be illustrative only and not intended to be limiting. For example, the order in which the operations are described is merely an example and the order of the operations described herein can be changed, except in those instances where the order of operations is specifically required by a particular sequence, and / or the order of the operations is otherwise made clear by the context, which will be apparent to those having ordinary skill in the art after having the benefit of this disclosure. As another example, at least some of the operations described can be performed in parallel, except in those instances where the order of operations is specifically required by a particular sequence, and / or the order of the operations. Additionally, descriptions of features in terms of "about" or "substantially" something should be understood as meaning close to something, but not exactly the same as something, unless otherwise stated or understood from the context.

[0056] Although expressions such as "first", "second", and "third" or A, B, (a), (b) etc. can be used herein to describe various components, elements, regions, layers or parts, these components, elements, regions, layers or parts are not limited by these expressions. Each of these expressions is not used to define importance, sequence or order of, for example, the corresponding components, elements, regions, layers or parts, but is used merely to distinguish the corresponding components, elements, regions, layers or parts from other components, elements, regions, layers or parts. Thus, a first component, a first element, a first region, a first layer or a first part mentioned in these examples can also be called a second component, a second element, a second region, a second layer or a second part without departing from the teachings of the examples described herein.

[0057] Throughout the specification, when a component, element, or layer is described as "on", "connected to", "coupled to", or "engaged to" another component, element, or layer, it can be "directly on", "directly connected to", "directly coupled to", or "directly engaged to" the other component, element, or layer (e.g., in contact with the other component, element, or layer), or there can be one or more other components, elements, or layers interposed therebetween. When a component, element, or layer is described as being "directly on", "directly connected to", "directly coupled to", or "directly engaged to" another component, element, or layer, there are no other components, elements, or layers interposed therebetween. Also, expressions such as "between" and "directly between", as well as "adjacent" and "directly adjacent", can be interpreted similarly as described above.

[0058] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting. The use of the terms "a," "an," and "the" are intended to encompass both singular and plural, unless the context clearly indicates otherwise. As used herein, the terms "comprises," "comprising," "includes," "including," and the like are specifically intended to be open-ended. These terms mean that a feature, number, operation, component, element, or the like can be included, but not limited to, the specific feature, number, operation, component, element, or the like. In other words, these terms mean that a feature, number, operation, component, element, or the like can be either included in, or utilized, in a product or process, but not limited to, the specific feature, number, operation, component, element, or the like. Additionally, although one embodiment can state that a feature, number, operation, component, element, or the like is included, other embodiments can not include the feature, number, operation, component, element, or the like.

[0059] As used herein, the term "and / or," when used in a list of two or more items, means that any one of the listed items can be present or any combination of two or more of the listed items can be present. For example, "A, B, and / or C" means that only A can be present, or only B can be present, or only C can be present, or A and B can be present, or A and C can be present, or B and C can be present, or A, B, and C can be present.

[0060] The features described herein can be embodied in different forms without departing from the character or spirit of various examples. Rather, the examples described herein are provided by way of illustration only and should not be construed as limiting the many possible forms in which the methods, apparatuses, and / or systems described herein can be implemented. In this document, the phrases "may include," "may include a," "may include one or more of," and "may include a or b" or similar phrases meaning that at least one of the numbered items is present and also that more than one of such item can be present, but not limited to the features, numbers, operations, components, elements, and / or combinations of them. In this document, the phrases "one or more of," "at least one of," and "one, two, or more of" are used to indicate that a feature, number, operation, component, element, and / or combinations of them can be either included in, or utilized in, a product or process, but not limited to, the specific feature, number, operation, component, element, and / or combinations of them. In this document, the phrases "a," "an," and "the" are used to indicate that a feature, number, operation, component, element, and / or combinations of them can be either included in, or utilized in, a product or process, but not limited to, the specific feature, number, operation, component, element, and / or combinations of them.

[0061] One or more examples relate to a reflection module and a camera module including the same, and can be applied to a portable electronic device such as, but not limited to, a smart phone and a tablet personal computer (PC).

[0062] One or more examples can provide a reflection module having improved driving stability and a camera module including the same. Specifically, one aspect of one or more examples can provide a reflection module having a structure in which the strength of driving force is increased and a load that interferes with driving is minimized, and a camera module including the same.

[0063] One or more examples can also provide a reflection module that can alleviate damage caused by an impact generated by a collision and a camera module including the same.

[0064] Figure 1 is a perspective view of an exemplary camera module according to one or more embodiments, Figure 2 is an internal perspective view of an exemplary camera module according to one or more embodiments, Figure 3 is a schematic exploded perspective view of an exemplary camera module according to one or more embodiments, Figure 4A is a cross-sectional view taken along Figure 1 line I-I' of FIG. 1, Figure 4B is a cross-sectional view taken along Figure 1 line II-II' of FIG. 2, and Figure 5 is an exploded perspective view of an exemplary camera module according to one or more embodiments.

[0065] A camera module 100 according to one or more embodiments can include a reflection module 2000, a lens module 3000, an image sensor module 4000, and a housing 1100 and a case 1300 that accommodate the above-described components.

[0066] The reflection module 2000 can be configured to change a traveling direction of incident light incident onto the camera module 100. Accordingly, the reflection module 2000 can include a reflection member 2100 that reflects the incident light.

[0067] Referring to Figure 2 and Figure 4A , the reflection member 2100 of the reflection module 2000 can reflect incident light incident in a thickness direction (Y-axis direction) of the camera module 100 to a length direction (Z-axis direction) of the camera module 100.

[0068] The lens module 3000 can include a plurality of lenses that refract the incident light passing through the reflection module 2000. The plurality of lenses can be disposed in a length direction (hereinafter, referred to as an optical axis direction) (Z-axis direction) of the camera module 100.

[0069] Referring to Figure 3 , the image sensor module 4000 can include an image sensor 4100 and a printed circuit board (hereinafter, referred to as a sensor substrate) 4200 on which the image sensor 4100 is mounted.

[0070] Incident light passing through the lens module 3000 can be incident on the image sensor 4100, and the image sensor 4100 can convert the incident light into an electrical signal.

[0071] One or more baffles (not shown) can be provided between the lens module 3000 and the image sensor 4100 to reduce flare phenomena. The baffles can be arranged in the internal space of the housing 1100 described below.

[0072] In addition, the image sensor module 4000 can further include an optical filter 4300 that filters light passing through the lens module 3000 and incident on the image sensor 4100. In an example, the optical filter 4300 can be an infrared cut filter.

[0073] Figure 6 is a perspective view of a housing according to one or more embodiments.

[0074] Referring to Figure 6 The housing 1100 can have an internal space. In the internal space of the housing 1100, the reflection module 2000 and the lens module 3000 can be sequentially arranged in the direction of travel of incident light.

[0075] The image sensor module 4000 can be provided behind the lens module 3000. The image sensor module 4000 can be coupled to the outer surface of the housing 1100 so that the imaging surface of the image sensor 4100 is exposed to the internal space of the housing 1100.

[0076] In this way, when the reflection module 2000 and the lens module 3000 are arranged in a single housing 1100, the number of components can be reduced, so that assembly can be facilitated, and separate alignment of the optical axis of the reflection module 2000 and the optical axis of the lens module 3000 is not required.

[0077] However, this is merely an example, and the reflection module 2000 and the lens module 3000 can be respectively housed in separately provided housings, unlike those shown in the drawings. The housings in which the reflection module 2000 and the lens module 3000 are respectively housed can be connected to each other.

[0078] According to an embodiment, a printed circuit board (hereinafter referred to as a main substrate) 5000 on which a driving coil or the like is mounted can be arranged on the outer surface of the housing 1100.

[0079] Figure 7 is a perspective view of a main substrate according to one or more embodiments, and Figure 8 is a perspective view of a main substrate coupled to a housing according to one or more embodiments.

[0080] According to an embodiment, the main substrate 5000 can be bent in some portions to be disposed on a plurality of surfaces of the housing 1100. For example, the main substrate 5000 can be disposed to cover a side surface of the housing 1100.

[0081] In an example, referring to Figure 6 , the housing 1100 can include through holes 1101, 1103, 1105, and 1107, and driving coils mounted on the main substrate 5000 and the image sensor 4100 can be exposed to an inner space of the housing 1100 through the through holes 1101, 1103, 1105, and 1107.

[0082] The outer case 1300 can be coupled to the housing 1100 to cover an open upper portion of the housing 1100. In an embodiment, the outer case 1300 can include a metal material to function as a shield.

[0083] Referring to Figure 2 , the outer case 1300 can include an opening 1310 through which light passes. Light can be incident on the reflection module 2000 through the opening 1310.

[0084] The camera module 100 according to one or more embodiments can basically have an optical image stabilization (OIS) function and an auto focus (AF) function.

[0085] In an embodiment, in order to compensate for shaking (e.g., hand shaking), the reflection module 2000 can be disposed to be rotatable about two axes (X-axis and Y-axis). In addition, in order to adjust a focus, the lens module 3000 can be disposed to be movable in an optical axis direction (Z-axis direction).

[0086] Accordingly, the reflection module 2000 and the lens module 3000 can be disposed in the housing 1100 through a ball member. The movement of the reflection module 2000 and the lens module 3000 can be relative movement with respect to the housing 1100.

[0087] In an example, the camera module 100 according to one or more embodiments can also have a zoom function. The zoom function can be implemented through movement of the lens module 3000 in the optical axis direction (Z-axis direction), and for this, the lens module 3000 can include a plurality of lens barrels that can be independently driven.

[0088] Figure 9 is a perspective view of a reflection module 2000 according to one or more embodiments, Figure 10A is an exploded perspective view of the reflection module 2000 according to one or more embodiments, Figure 10B is an exploded perspective view of the reflection module 2000 viewed from a different angle than Figure 10A , and Figure 11 is a view of the reflection module 2000 viewed from a different angle than Figure 9a cross-sectional view taken along line III-III' of FIG. 3, Figure 12 is a bottom perspective view of a reflection module 2000 according to one or more embodiments, and Figure 13 is a bottom view of the reflection module 2000 (bearing part 2300) according to one or more embodiments.

[0089] According to an embodiment, the reflection module 2000 can include a reflection bracket 2200 on which the reflection member 2100 is disposed, and a bearing part 2300 on which the reflection bracket 2200 is supported. The bearing part 2300 can be rotatably supported by the housing 1100 while rotatably supporting the reflection bracket 2200.

[0090] According to an embodiment, the reflection member 2100 can be disposed as a prism including an incident surface 2110, a reflection surface 2120, and an exit surface 2130. However, this is merely an example, and in an example, the reflection member 2100 can be disposed as a mirror.

[0091] When a direction in which incident light is incident is defined as a first optical axis OAl direction parallel to a thickness direction (Y-axis direction) of the camera module 100, the first optical axis OAl can pass through a center of the incident surface 2110. Also, when an optical axis direction (Z-axis direction) of the camera module 100 is defined as a second optical axis OA2 direction, the second optical axis OA2 can pass through a center of the exit surface 2130.

[0092] The reflection surface 2120 can be disposed obliquely with respect to the incident surface 2110 and the exit surface 2130. In an example, the first optical axis OAl and the second optical axis OA2 can intersect at substantially a center of the reflection surface 2120. The reflection surface 2120 can change a traveling direction of incident light incident in the first optical axis OAl direction to the second optical axis OA2 direction.

[0093] In a non-limiting example, the incident surface 2110 and the exit surface 2130 of the reflection member 2100 can have curvatures. Referring to Figure 11 , the incident surface 2110 can have a convex shape, and the exit surface 2130 can have a concave shape. However, shapes of the incident surface 2110 and the exit surface 2130 are not limited to the above-described shapes.

[0094] Since the incident surface 2110 and the exit surface 2130 can have curvatures, the reflection member 2100 can function as a lens. Accordingly, when the incident surface 2110 and the exit surface 2130 of the reflection member 2100 have curvatures, some lenses can be omitted from the lens module 3000, and thus a size of the camera module 100 can be reduced.

[0095] Referring to Figure 10AThe spacers SP1 and SP2 can include an opening through which incident light passes and a light blocking portion disposed along a periphery of the opening. The light blocking portion can be a black coated portion, and can cover a periphery of an effective area of the incident surface 2110 and the exit surface 2130 to block light from passing through the respective areas.

[0096] The spacers SP1 and SP2 can include an opening through which incident light passes and a light blocking portion disposed along a periphery of the opening. The light blocking portion can be a black coated portion, and can cover a periphery of an effective area of the incident surface 2110 and the exit surface 2130 to block light from passing through the respective areas.

[0097] According to an embodiment, the reflection module 2000 can be disposed to rotate about two axes (X-axis and Y-axis) perpendicular to the optical axis (Z-axis).

[0098] In an embodiment, the reflection bracket 2200 can rotate about a first axis (X-axis) while being supported by the carrier 2300, and the carrier 2300 can rotate about a second axis (Y-axis) together with the reflection bracket 2200 while being supported by the housing 1100. The first axis (X-axis) and the second axis (Y-axis) can be perpendicular to each other.

[0099] The reflection member 2100 disposed in the reflection bracket 2200 can rotate together with the reflection bracket 2200. Accordingly, the reflection member 2100 can rotate about the first axis (X-axis) and the second axis (Y-axis).

[0100] The first ball member 2410 can be disposed between the reflection bracket 2200 and the carrier 2300 to support rotation of the reflection bracket 2200 with respect to the carrier 2300.

[0101] In an embodiment, the first ball member 2410 can include a plurality of ball members spaced apart from each other in the first axis (X-axis) direction with the reflection member 2100 interposed therebetween.

[0102] The first ball member 2410 can form the first axis (X-axis) while rotating in place with respect to the reflection bracket 2200 and the carrier 2300 fixed in position. The first axis (X-axis) can pass through the first ball member 2410.

[0103] The reflection bracket 2200 and the carrier 2300 can include accommodation recesses 2221 and 2321 that accommodate the first ball member 2410. Each of the accommodation recesses 2221 and 2321 can be disposed to be spaced apart from each other in the first axis direction (X-axis direction), and can be disposed in a number corresponding to the number of the first ball member 2410.

[0104] In an embodiment, the reflection bracket 2200 can include a first accommodation recess 2221 to accommodate a portion of the first ball member 2410, and the support portion 2300 can include a second accommodation recess 2321 disposed to face the first accommodation recess 2221 and accommodate another portion of the first ball member 2410. In an example, the first accommodation recess 2221 and the second accommodation recess 2321 can face each other in the optical axis direction (Z-axis direction).

[0105] The first ball member 2410 can be supported at three points or two points by the first accommodation recess 2221 and the second accommodation recess 2321. That is, the first accommodation recess 2221 and the second accommodation recess 2321 can each include three or two inclined surfaces.

[0106] In an embodiment, the first accommodation recess 2221 and the second accommodation recess 2321 can each include three inclined surfaces so that the first ball member 2410 can be rotated in situ. Also, the first accommodation recess 2221 or the second accommodation recess 2321 can include two inclined surfaces to overcome defects due to tolerances.

[0107] The reflection bracket 2200 can be supported on the support portion 2300 by magnetic force (magnetic attraction). Accordingly, a pair of magnetic members that generate magnetic attraction can be disposed on the reflection bracket 2200 and the support portion 2300.

[0108] Referring to Figure 11 The pair of magnetic members can include a traction magnet 2340 disposed in the support portion 2300 and a traction yoke 2240 inserted into the reflection bracket 2200.

[0109] The pair of magnetic members can generate magnetic attraction in a direction in which they face each other. For example, the pair of magnetic members can face each other in the optical axis direction (Z-axis direction), and the magnetic attraction therebetween can be generated in the optical axis direction (Z-axis direction). Accordingly, the reflection bracket 2200 can be supported on the support portion 2300 in the optical axis direction (Z-axis direction).

[0110] In an example, a direction in which the reflection bracket 2200 is supported by the support portion 2300 can match a direction in which the reflection bracket 2200 and the support portion 2300 face each other, and the first ball member 2410 is interposed therebetween. Accordingly, the first ball member 2410 can support rotation of the reflection bracket 2200 without being detached from between the reflection bracket 2200 and the support portion 2300.

[0111] The reflection module 2000 can include a first driving unit that provides a driving force to rotate the reflection bracket 2200.

[0112] The first driving unit can include a first driving magnet 2231 and a first driving coil 2232 disposed to face each other. The reflection holder 2200 can be rotated about a first axis (X axis) by electromagnetic interaction between the first driving magnet 2231 and the first driving coil 2232.

[0113] In an embodiment, the first driving magnet 2231 can be disposed in the reflection holder 2200, and the first driving coil 2232 can be disposed in the housing 1100. However, in another embodiment, the position of the first driving magnet 2231 and the position of the first driving coil 2232 can be interchanged.

[0114] The reflection holder 2200 can include an extension 2210 extending from the reflection holder 2200 and positioned between the carrying part 2300 and the housing 1100, and the first driving magnet 2231 can be disposed on the extension 2210.

[0115] The first driving coil 2232 can be mounted on the main substrate 5000 and can be disposed on one surface of the housing 1100. The first driving coil 2232 can be exposed to the inner space of the housing 1100 through the through-hole 1101 formed in the housing 1100, and thus can directly face the first driving magnet 2231.

[0116] In an embodiment, the first driving magnet 2231 and the first driving coil 2232 can face each other in the optical axis direction (Z axis direction).

[0117] The first driving magnet 2231 can be magnetized in a second axis direction (Y axis direction), which is substantially a rotation direction of the reflection holder 2200. For example, one surface of the first driving magnet 2231 facing the first driving coil 2232 can include an N pole (S pole) region, a neutral region, and an S pole (N pole) region in the second axis direction (Y axis direction).

[0118] The first driving unit can further include a first yoke (not shown) facing the first driving magnet 2231, and the first driving coil 2232 is interposed between the first driving magnet 2231 and the first yoke.

[0119] The first yoke can be disposed on the other side of the housing 1100, which is a surface of the housing 1100 opposite to the surface on which the first driving coil 2232 is disposed. In an example, the first yoke can be disposed as a magnetic member and can concentrate the magnetic flux of the first driving magnet 2231.

[0120] Also, the first driving unit can include a first position sensing unit (or sensor) that detects a position of the reflection bracket 2200. The first position sensing unit can include a first sensing magnet 2235 and a first position sensor 2233 arranged to face each other. In an example, the first position sensor 2233 can be provided as a Hall sensor, and can detect a change in magnetic flux to detect an amount of movement of the reflection bracket 2200.

[0121] The first sensing magnet 2235 can be provided on the extension 2210 of the reflection bracket 2200 together with the first driving magnet 2231. The first sensing magnet 2235 can be provided in the second axis direction (Y-axis direction) and spaced apart from the first driving magnet 2231.

[0122] Also, one surface of the first sensing magnet 2235 facing the first position sensor 2233 can include an N-pole (S-pole) region, a neutral region, and an S-pole (N-pole) region in the second axis direction (Y-axis direction).

[0123] In an embodiment, the first driving magnet 2231 and the first sensing magnet 2235 can be provided such that the same polarity regions (N-pole and N-pole or S-pole and S-pole) are adjacent to each other.

[0124] The first position sensor 2233 can be provided on the main substrate 5000. The first position sensor 2233 can be provided to face the neutral region of the first sensing magnet 2235 when the reflection bracket 2200 is in the neutral position.

[0125] According to an embodiment, since the first position sensor 2233 is spaced apart from the first driving coil 2232, the first position sensor 2233 can be less affected by the magnetic field of the first driving coil 2232, and thus sensing accuracy can be improved.

[0126] The second ball member 2420 can be provided between the carrier 2300 and the housing 1100 to support rotation of the carrier 2300 with respect to the housing 1100.

[0127] In an embodiment, the second ball member 2420 can include a single pivot ball 2421 and a guide ball 2422 spaced apart from the pivot ball 2421.

[0128] The pivot ball 2421 can form a second axis (Y-axis) while rotating in place with respect to the carrier 2300 and the housing 1100 in a fixed position. The second axis (Y-axis) can pass through the pivot ball 2421.

[0129] The carrier 2300 and the housing 1100 can include accommodation recesses 2322 and 1122 that accommodate the pivot ball 2421.

[0130] In an embodiment, the bearing portion 2300 can include a third accommodation recess 2322 that accommodates a portion of the pivot ball 2421, and the case 1100 can include a fourth accommodation recess 1122 that is disposed to face the third accommodation recess 2322 and accommodates another portion of the pivot ball 2421. For example, the third accommodation recess 2322 and the fourth accommodation recess 1122 can face each other in the second axis direction (Y-axis direction).

[0131] The pivot ball 2421 can be supported at three points by the third accommodation recess 2322 and the fourth accommodation recess 1122. The third accommodation recess 2322 and the fourth accommodation recess 1122 can each include three inclined surfaces so that the pivot ball 2421 can be rotated in place.

[0132] The guide ball 2422 can be spaced apart from the second axis (Y-axis) that is a rotation axis of the bearing portion 2300, and can support rotation of the bearing portion 2300 with respect to the second axis (Y-axis).

[0133] The guide ball 2422 can include two ball members that are spaced apart from each other in the first axis direction (X-axis direction).

[0134] The bearing portion 2300 and the case 1100 can include guide recesses 2323 and 1123 that accommodate the guide ball 2422. The guide recesses 2323 and 1123 can be disposed spaced apart in the first axis direction (X-axis direction), and can be disposed in a number corresponding to the number of the guide ball 2422.

[0135] In an embodiment, the bearing portion 2300 can include a first guide recess 2323 that accommodates a portion of the guide ball 2422, and the case 1100 can include a second guide recess 1123 that is disposed to face the first guide recess 2323 and accommodates another portion of the guide ball 2422. For example, the first guide recess 2323 and the second guide recess 1123 can face each other in the second axis direction (Y-axis direction).

[0136] The first guide recess 2323 and the second guide recess 1123 can extend in the rotation direction of the bearing portion 2300. For example, the first guide recess 2323 and the second guide recess 1123 can extend along an arc line of a circle based on the second axis (Y-axis) (curved shape), or can extend in the normal direction of the circle (straight line shape). Accordingly, the guide ball 2422 can guide rotation of the bearing portion 2300 while being accommodated in the first guide recess 2323 and the second guide recess 1123.

[0137] In an embodiment, the first guide recess 2323 and the second guide recess 1123 can each have a flat bottom surface, and the guide ball 2422 can contact the flat bottom surfaces of the first guide recess 2323 and the second guide recess 1123.

[0138] That is, the guide ball 2422 can roll on the bottom surfaces of the guide recesses 2323 and 1123 while being supported by one point on each of the first guide recess 2323 and the second guide recess 1123. In this example, since the guide recesses 2323 and 1123 do not restrict the side surfaces of the guide ball 2422, the rolling of the guide ball 2422 can be smooth.

[0139] According to an embodiment, an angle θ between the guide balls 2422 centered on the pivot ball 2421 can be 90° or less, preferably an acute angle. The angle θ can be defined as an angle formed by two lines connecting the center of each of the guide balls 2422 and the center of the pivot ball 2421. The angle θ between the guide balls 2422 can be set within a rotation range (degrees) according to a rotation range of the bearing part 2300. When the bearing part 2300 rotates, the guide balls 2422 can change positions within a space defined by the guide recesses 2323 and 1123, but regardless of the positions of the guide balls 2422, the angle θ between the guide balls 2422 centered on the pivot ball 2421 can be constantly an acute angle.

[0140] The bearing part 2300 can be supported by the case 1100 by magnetic force (magnetic attraction). Accordingly, a pair of magnetic members generating magnetic attraction can be disposed in the bearing part 2300 and the case 1100. The pair of magnetic members can be disposed to face each other in a direction between the case 1100 and the reflection member 2100.

[0141] The pair of magnetic members can include a traction magnet 2350 disposed in the bearing part 2300 and a traction yoke 1160 inserted into the case 1100.

[0142] The pair of magnetic members can generate magnetic attraction in a direction in which the pair of magnetic members face each other. For example, the pair of magnetic members can face each other in the second axis direction (Y-axis direction), and can generate magnetic attraction between them in the second axis direction (Y-axis direction). Accordingly, the bearing part 2300 can be supported in the case 1100 in the second axis direction (Y-axis direction).

[0143] In an example, the direction in which the bearing portion 2300 is supported in the case 1100 can match the direction in which the bearing portion 2300 and the case 1100 face each other with the second ball member 2420 interposed therebetween. Thus, the second ball member 2420 does not come off from the bearing portion 2300 and the case 1100, and can support the rotation of the bearing portion 2300.

[0144] According to an embodiment, the traction magnet 2350 disposed on the bearing portion 2300 can be positioned within a support region T having a triangular shape substantially defined by the second ball member 2420. Similarly, the traction yoke 1160 disposed on the case 1100 to face the traction magnet 2350 can also be positioned within the support region T substantially defined by the second ball member 2420.

[0145] Preferably, the traction magnet 2350 and the traction yoke 1160 can be continuously positioned within the support region T defined by the second ball member 2420 as the bearing portion 2300 rotates about the second axis (Y-axis). However, this does not necessarily mean that the traction magnet 2350 and the traction yoke 1160 are entirely located within the support region T, and can include an example in which a portion thereof is located within the support region T.

[0146] Referring to Figure 13 In an embodiment, as the bearing portion 2300 rotates about the second axis (Y-axis), the center of the magnetic attraction formed by the traction magnet 2350 and the traction yoke 1160 can be located within the support region T. The center of the magnetic attraction formed by the traction magnet 2350 and the traction yoke 1160 can substantially coincide with the geometric center CP of the traction magnet 2350. Thus, as the bearing portion 2300 rotates about the second axis (Y-axis), the center of the magnetic attraction can constantly be located within the support region T.

[0147] As the center of the magnetic attraction formed by the traction magnet 2350 and the traction yoke 1160 constantly is located within the support region T defined by the second ball member 2420 during the rotation of the bearing portion 2300, the bearing portion 2300 can stably rotate.

[0148] In an embodiment, the traction magnet 2350 can be disposed such that the geometric center CP of the traction magnet 2350 is spaced apart from the pivot ball 2421 in the optical axis direction (Z-axis direction). Thus, the center of rotation of the bearing portion 2300 and the center of the magnetic attraction pressing the bearing portion 2300 against the case 1100 can be substantially located on the optical axis (Z-axis).

[0149] Further, referring again to Figure 13For example, the geometric center CP of the traction magnet 2350 can be disposed closer to the pivot ball 2421 than the guide ball 2422 among the second ball members 2420 defining the support area T.

[0150] The shape of the support area T defined by the second ball members 2420 can change as the carrier 2300 rotates. For example, the position of the guide ball 2422 can change within the guide recesses 2323 and 1123 as the guide ball 2422 supports the rotation of the carrier 2300 while rolling within the guide recesses 2323 and 1123. In an example, the pivot ball 2421 can form an axis of rotation of the carrier 2300 while rotating in place with accommodation in the accommodation recesses 2322 and 1122.

[0151] Accordingly, when the traction magnet 2350 is disposed closer to the pivot ball 2421, the likelihood that the traction magnet 2350 is located within the support area T defined by the second ball members 2420 can increase, although the shape of the support area T continuously changes according to the rotation of the carrier 2300. Accordingly, the rotation of the carrier 2300 can be more stably supported.

[0152] The reflection module 2000 can include a second driving unit that provides a driving force to rotate the carrier 2300.

[0153] The second driving unit can include a second driving magnet 2331 and a second driving coil 2332 arranged to face each other. The carrier 2300 can rotate about a second axis (Y-axis) based on electromagnetic interaction of the second driving magnet 2331 and the second driving coil 2332.

[0154] In an embodiment, the second driving magnet 2331 can be disposed in the carrier 2300, and the second driving coil 2332 can be disposed in the housing 1100. However, this is merely an example, and in another embodiment, the positions of the second driving magnet 2331 and the second driving coil 2332 can be interchanged.

[0155] The second driving magnet 2331 can be disposed on a side surface of the carrier 2300. For example, the second driving magnet 2331 can include two magnets, which can be respectively arranged on opposite sides of the carrier 2300.

[0156] According to an embodiment, the second driving magnets 2331 can be disposed on different sides of the second ball member 2420 and the bearing part 2300. Accordingly, the size of the second driving magnets 2331 and the second driving coils 2332 can be increased, and since the distance from the rotation center to the driving center can be increased, the driving force and the driving efficiency can be improved.

[0157] In an example, the second driving coils 2332 can be mounted on the main substrate 5000 and disposed in the housing 1100. In an example, the second driving coils 2332 can include two coils corresponding one-to-one to the second driving magnets 2331, and the two coils can be arranged on opposite sides of the housing 1100 facing the opposite sides of the bearing part 2300, respectively. The second driving coils 2332 can be exposed to the inner space of the housing 1100 through the through holes 1103 formed in the housing 1100, so that the second driving coils 2332 can directly face the second driving magnets 2331.

[0158] In an embodiment, the second driving magnets 2331 and the second driving coils 2332 can face each other in the first axis direction (X-axis direction).

[0159] The second driving magnets 2331 can be magnetized in the optical axis direction (Z-axis direction), which is substantially the rotation direction of the bearing part 2300. In an example, one surface of the second driving magnets 2331 facing the second driving coils 2332 can include an N-pole (S-pole) region, a neutral region, and an S-pole (N-pole) region in the optical axis direction (Z-axis direction).

[0160] The second driving unit can include a second position sensing unit (or sensor) that detects the position of the bearing part 2300. The second position sensing unit can include a second sensing magnet 2335 and a second position sensor 2333 arranged to face each other. In a non-limiting example, the second position sensor 2333 can be provided as a Hall sensor, and can detect a change in magnetic flux to detect the amount of movement of the bearing part 2300.

[0161] The second sensing magnet 2335 can be disposed on one side or the opposite side of the bearing part 2300 together with the second driving magnet 2331. The second sensing magnet 2335 can be spaced apart from the second driving magnet 2331 in the optical axis direction (Z-axis direction).

[0162] In addition, one surface of the second sensing magnet 2335 facing the second position sensor 2333 can include an N-pole (S-pole) region, a neutral region, and an S-pole (N-pole) region in the optical axis direction (Z-axis direction).

[0163] In an embodiment, the second driving magnet 2331 and the second sensing magnet 2335 can be arranged such that the same polarity regions (N-pole and N-pole or S-pole and S-pole) are adjacent to each other.

[0164] The second position sensor 2333 can be disposed on the main substrate 5000. The second position sensor 2333 can be disposed to face the neutral region of the second sensing magnet 2335 when the carrier 2300 is in the middle position.

[0165] According to an embodiment, the second position sensor 2333 can be positioned apart from the second driving coil 2332, and thus, the second position sensor 2333 can be less affected by a magnetic field of the second driving coil 2332, thereby improving sensing accuracy.

[0166] The reflection module 2000 can include an auxiliary member 2500 that prevents collision between the reflection module 2000 and an adjacent structure.

[0167] The auxiliary member 2500 can be coupled to opposite sides of the carrier 2300 to surround a portion of the reflection bracket 2200. Thus, even if an impact occurs, the reflection bracket 2200 and the carrier 2300 can be prevented from being separated.

[0168] The auxiliary member 2500 can include a damper. The damper can collide with an opposite portion before colliding with an injection-molded product, thereby absorbing an impact and noise due to the collision.

[0169] In addition, according to one or more embodiments, a buffer member 1500 can be disposed between the case 1100 and the carrier 2300.

[0170] Figure 14 is an exploded perspective view of a case and a carrier according to one or more embodiments, and Figure 15 is a cross-sectional view taken along line IV-IV' of Figure 9 .

[0171] The buffer member 1500 can protrude from a bottom surface of the case 1100 toward a bottom surface of the carrier 2300 that faces the bottom surface of the case 1100. That is, the buffer member 1500 can protrude in a second axis direction (Y-axis direction) that is a thickness direction of the camera module 100.

[0172] In an embodiment, the buffer member 1500 can be a part of the case 1100. In an example, the buffer member 1500 can be integrally formed with the case 1100 by insertion injection molding. Referring to Figure 15The steel support frame 1150 can be inserted into a bottom surface of the housing 1100, and the buffer member 1500 can be attached to the steel support frame 1150 and disposed in the housing 1100.

[0173] The buffer member 1500 can function to absorb a shock and noise caused by driving or impact. The buffer member 1500 can be formed of a soft material that can be elastically deformed, and may, for example, include a material such as urethane, rubber, silicone, and sponge.

[0174] Referring again to Figure 14 The buffer member 1500 can be disposed in the accommodation portion 2360 disposed on a bottom surface of the bearing portion 2300. The buffer member 1500 can be disposed in the accommodation portion 2360 with a small gap from an inner surface defining the accommodation portion 2360.

[0175] The buffer member 1500 can be spaced apart from a rotation axis (or a pivot ball 2421) of the bearing portion 2300 interposed therebetween in the first axis direction (X-axis direction).

[0176] The buffer member 1500 can have a function of a stopper that limits a maximum rotation amount of the bearing portion 2300 with respect to the housing 1100.

[0177] The buffer member 1500 can be spaced apart from the inner surface defining the accommodation portion 2360 in the optical axis direction (Z-axis direction). When the bearing portion 2300 rotates about the second axis (Y-axis), the buffer member 1500 can be deformed while contacting some of the inner surfaces facing the optical axis direction (Z-axis direction). Accordingly, a rotation range of the bearing portion 2300 can be limited, and impact and noise caused by rotation of the bearing portion 2300 can be mitigated.

[0178] In addition, the buffer member 1500 can have a gap between the bottom surface of the accommodation portion 2360 in the second axis direction (Y-axis direction). In an example, the gap between the buffer member 1500 and the accommodation portion 2360 in the second axis direction (Y-axis direction) can be narrower than the gap between the bearing portion 2300 and the housing 1100 in the second axis direction (Y-axis direction). Accordingly, when an impact is applied to the camera module 100 in the second axis direction (Y-axis direction), the bearing portion 2300 can first collide with the buffer member 1500, and direct collision with the housing 1100 can be prevented.

[0179] Figure 16 is an exploded perspective view of a lens module according to one or more embodiments, and Figure 17 is a bottom exploded perspective view of a lens module according to one or more embodiments.

[0180] Referring toFigure 16 and Figure 17 The lens module 3000 can include a plurality of lens barrels 3110 and 3120 and a lens holder 3200 in which one of the plurality of lens barrels 3110 and 3120 is disposed. The lens holder 3200 can be movably disposed in the internal space of the housing 1100.

[0181] The plurality of lens barrels 3110 and 3120 can each include one or more lenses arranged or disposed in an optical axis direction (Z-axis direction).

[0182] In an embodiment, the plurality of lens barrels 3110 and 3120 can include a first lens barrel 3110 fixedly disposed in the internal space of the housing 1100 and a second lens barrel 3120 disposed to be relatively movable with respect to the housing 1100.

[0183] The second lens barrel 3120 can be coupled to the lens holder 3200 and can move together with the lens holder 3200 with respect to the housing 1100 and the first lens barrel 3110 in the optical axis direction (Z-axis direction).

[0184] The lens holder 3200 can include two side surfaces disposed in parallel to each other. The two side surfaces of the lens holder 3200 can extend from opposite sides of the second lens barrel 3120 in the optical axis direction (Z-axis direction). In an example, the two side surfaces of the lens holder 3200 can extend between the first lens barrel 3110 and the housing 1100, and a portion of the first lens barrel 3110 can be located between the two side surfaces of the lens holder 3200.

[0185] The third ball member 3430 can be located between the lens holder 3200 and the housing 1100 to support the movement of the lens holder 3200 with respect to the housing 1100. In an example, the third ball member 3430 can be located between both sides of the lens holder 3200 and the housing 1100.

[0186] In an embodiment, the third ball member 3430 can include a plurality of ball members supporting a first side and a second side of the lens holder 3200, the plurality of ball members being arranged on opposite sides of the second lens barrel 3120 based on the optical axis (Z-axis). In an example, the first side and the second side of the lens holder 3200 can be supported by a plurality of ball members spaced apart from each other in the optical axis direction (Z-axis direction). As another example, the first side of the lens holder 3200 can be supported by a plurality of ball members, and the second side of the lens holder 3200 can be supported by a single ball member.

[0187] Referring to Figure 17 The lens holder 3200 and the housing 1100 can include guide recesses 3221 and 1124 that accommodate the third ball member 3430.

[0188] A third guide recess 3221 having a length in the optical axis direction (Z-axis direction) can be disposed on the first side and the second side of the lens holder 3200. In an example, the third guide recess 3221 can be disposed on the bottom surface of both side surfaces of the lens holder 3200. A fourth guide recess 1124 having a length in the optical axis direction (Z-axis direction) can be disposed in the housing 1100. The fourth guide recess 1124 can face the third guide recess 3221, and the third ball member 3430 is located between the fourth guide recess 1124 and the third guide recess 3221.

[0189] The third ball member 3430 can support the movement of the lens holder 3200 while rolling in the optical axis direction (Z-axis direction) while being inserted between the third guide recess 3221 and the fourth guide recess 1124.

[0190] The lens holder 3200 can be supported by the housing 1100 by magnetic force (magnetic attraction). Accordingly, a pair of magnetic members that generate magnetic attraction can be disposed in the lens holder 3200 and the housing 1100.

[0191] The pair of magnetic members can include a traction magnet 3240 disposed in the lens holder 3200 and a traction yoke (not shown) disposed in the housing 1100.

[0192] The pair of magnetic members can generate magnetic attraction in a direction facing each other. In an example, the pair of magnetic members can face each other in the second axis direction (Y-axis direction), and the magnetic attraction therebetween can be generated in the second axis direction (Y-axis direction). Accordingly, the lens holder 3200 can be supported in the housing 1100 in the second axis direction (Y-axis direction).

[0193] In an example, the direction in which the lens holder 3200 is supported on the housing 1100 can coincide with the direction in which the lens holder 3200 and the housing 1100 face each other and the third ball member 3430 is located therebetween. Accordingly, the third ball member 3430 does not escape from between the lens holder 3200 and the housing 1100, and can support the movement of the lens holder 3200.

[0194] The lens module 3000 can include a third driving unit that provides a driving force to move the lens holder 3200.

[0195] The third driving unit can include a third driving magnet 3231 and a third driving coil 3232 arranged to face each other. The lens holder 3200 can move in the optical axis direction (Z-axis direction) based on electromagnetic interaction between the third driving magnet 3231 and the third driving coil 3232.

[0196] In an embodiment, the third driving magnet 3231 can be disposed in the lens holder 3200, and the third driving coil 3232 can be disposed in the housing 1100. However, in another embodiment, the positions of the third driving magnet 3231 and the third driving coil 3232 can be interchanged.

[0197] The third driving magnet 3231 can be disposed on a side surface of the lens holder 3200. In an example, the third driving magnet 3231 can include two magnets, which can be disposed on both sides of the lens holder 3200, respectively.

[0198] The third driving coil 3232 can be mounted on the main substrate 5000 and can be disposed in the housing 1100. In an example, the third driving coil 3232 can include two coils corresponding one-to-one to the third driving magnet 3231, which can be disposed on opposite sides of the housing 1100 facing the opposite side surfaces of the lens holder 3200, respectively. The third driving coil 3232 can be exposed to the inner space of the housing 1100 through the through-hole 1105 formed in the housing 1100, so as to directly face the third driving magnet 3231.

[0199] In an embodiment, the third driving magnet 3231 and the third driving coil 3232 can face each other in the first axis direction (X-axis direction).

[0200] The third driving magnet 3231 can be magnetized in the optical axis direction (Z-axis direction), which is the moving direction of the lens holder 3200. In an example, one surface of the third driving magnet 3231 facing the third driving coil 3232 can be provided with an N-pole (S-pole) region, a neutral region, and an S-pole (N-pole) region in the optical axis direction (Z-axis direction).

[0201] The third driving unit can include a third position sensor 3233 detecting the position of the lens holder 3200. In an example, the third position sensor 3233 can be provided as a Hall sensor and can detect a change in magnetic flux to detect the amount of movement of the lens holder 3200.

[0202] The third position sensor 3233 can be disposed on the main substrate 5000 and can be disposed on the inner side or the outer side of the third driving coil 3232. The third position sensor 3233 can be disposed to face the neutral region of the third driving magnet 3231 when the lens holder 3200 is in the middle position.

[0203] The housing 1100 can include at least one pair of stops 1400 facing each other in the optical axis direction (Z-axis direction) with the lens module 3000 located therebetween. For example, the stop 1400 can be disposed to fit into the wall of the housing 1100.

[0204] The stopper 1400 can include a damper protruding toward the lens module 3000. The damper can be disposed to face the lens holder 3200 in the optical axis direction (Z-axis direction) to prevent direct collision between the lens holder 3200 and the housing 1100. In an example, when the lens holder 3200 has moved to a maximum value, the damper disposed in the stopper 1400 can collide with the lens holder 3200 before colliding with the injection-molded product, thereby absorbing the shock and noise due to the collision.

[0205] According to one or more embodiments, driving stability of the reflection module and optical image stabilization performance of the camera module can be improved.

[0206] While the disclosure includes specific examples, it will be apparent to those skilled in the art, after understanding the disclosure provided herein, that various changes in form and details can be made without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects in each example are to be considered as being applicable to similar features or aspects in other examples. Proper results can be obtained if the described techniques are performed in a different order, and / or if the systems, architectures, devices, or circuits described are combined or substituted with other systems, architectures, devices, or circuits or their equivalents.

[0207] Therefore, the scope of the disclosure includes the claims and their equivalents, in addition to the above disclosure and all the drawings disclosed, that is, all variations within the scope of the claims and their equivalents should be understood to be included in the disclosure.

Claims

1. A reflection module comprising: a housing having an interior space open at an upper portion; a reflection member configured to rotate in the housing about a first axis; a driving unit configured to rotate the reflection member about the first axis; and a pair of magnetic members disposed to face each other in a direction between the housing and the reflection member, wherein the driving unit includes a driving magnet and a driving coil, the driving magnet and the driving coil facing each other in a direction different from the direction in which the pair of magnetic members face each other, and wherein the first axis passes through the reflection member. The pair of magnetic members face each other in a direction parallel to the first axis, and the driving magnet and the driving coil face each other in a direction of a second axis perpendicular to the first axis.

2. The reflective module of claim 1, wherein, 3.The reflection module of claim 1, further comprising: a reflection bracket on which the reflection member is disposed; and a bearing portion on which the reflection bracket is supported, wherein the bearing portion is configured to rotate about the first axis together with the reflection member and the reflection bracket while being disposed in the housing. One of the pair of magnetic members and the driving magnet are disposed on different sides of the bearing portion, respectively. 5.The reflection module of claim 4, further comprising:

4. The reflective module of claim 3, wherein, a sensing magnet disposed in the bearing portion in parallel with the driving magnet; and a position sensor disposed in the housing to face the sensing magnet. 6.The reflection module of claim 4, wherein: a plurality of ball members are disposed between the housing and the bearing portion, the plurality of ball members include a pivot ball through which the first axis passes and a plurality of guide balls spaced apart from the pivot ball, and a distance between the one of the pair of magnetic members and the pivot ball is less than a distance between the one of the pair of magnetic members and the guide ball. The plurality of guide balls include two ball members, and an angle between the two ball members centered on the pivot ball is an acute angle. The magnetic member among the pair of magnetic members disposed on the bearing portion is disposed within a support area formed by connecting the plurality of ball members. The reflection bracket rotates about a second axis perpendicular to the first axis together with the reflection member.

7. The reflective module of claim 6, wherein, 10.The reflection module of claim 3, further comprising a buffer member disposed in the housing, 8. The reflective module of claim 6, wherein, the buffer member is disposed to protrude toward the bearing portion in a direction parallel to the first axis, and the buffer member is spaced apart from a pivot ball among a plurality of ball members in a direction of a second axis perpendicular to the first axis, and the first axis is interposed between the buffer members.

9. The reflective module of claim 3, wherein, 11.A reflection module comprising: a housing having an interior space open at an upper portion; wherein, a bearing portion rotatably supported in the interior space; a reflection member disposed on the bearing portion; and three ball members disposed between the housing and the bearing portion and configured to support rotation of the bearing portion, wherein a triangle formed by connecting the three ball members is an acute triangle. ​ ​ ​ ​ 12.The reflection module of claim 11, further comprising: a pair of magnetic members disposed on surfaces of the housing and the carrier facing each other, respectively, with the three ball members interposed between the surfaces of the housing and the carrier facing each other, and the pair of magnetic members configured to generate a magnetic attraction, wherein the pair of magnetic members are disposed such that a center of the magnetic attraction formed by the pair of magnetic members is located within the acute triangle. 13.The reflection module of claim 12, wherein: the pair of magnetic members include: a traction magnet disposed on the carrier; and a traction yoke disposed in the housing to face the traction magnet. 14.The reflection module of claim 13, wherein: the three ball members include: a pivot ball through which a rotation axis of the carrier passes; and two guide balls spaced apart from the pivot ball, wherein the traction magnet is disposed in a position in which a distance between a center of the traction magnet and the pivot ball is less than a distance between the center of the traction magnet and the two guide balls.

15. The reflective module of claim 14, wherein, the center of the traction magnet is spaced apart from the pivot ball in a direction perpendicular to the rotation axis of the carrier. 16.A camera module comprising: the reflection module of any one of claims 1 to 15; and a lens module including a plurality of lenses configured to refract light passing through the reflection module. 17.A reflection module comprising: a housing having an inner space open at an upper portion; a carrier disposed in the inner space; a reflection bracket disposed on the carrier; and a reflection member mounted on the reflection bracket, wherein the housing includes a buffer member protruding toward the carrier, and wherein the carrier includes an accommodation portion configured to accommodate the buffer member.

18. The reflective module of claim 17, wherein, the carrier rotates relative to the housing about a first axis, and the reflection bracket rotates relative to the carrier and the housing about a second axis perpendicular to the first axis. 19.The reflection module of claim 18, further comprising a pivot ball through which the first axis passes and a plurality of guide balls spaced apart from the pivot ball, wherein the pivot ball and the plurality of guide balls are arranged between the carrier and the housing.

20. The reflective module of claim 19, wherein, the buffer member is disposed in plurality, and the plurality of buffer members are spaced apart from each other, and the pivot ball is disposed between the plurality of buffer members.

21. The reflective module of claim 20, wherein, the pivot ball and the plurality of buffer members are arranged in a direction parallel to the second axis.

22. The reflective module of claim 18, wherein, the buffer member is spaced apart from the reflection bracket in a direction parallel to the first axis. 23.The reflection module of claim 17, further comprising a support frame disposed at least partially within the housing, wherein the buffer member is disposed on the support frame. 24.The reflection module of claim 19, further comprising: a first driving unit including a first driving magnet and a first driving coil, and configured to generate a driving force to rotate the carrier about the first axis; and a second driving unit including a second driving magnet and a second driving coil, and configured to generate a driving force to rotate the reflection bracket about the second axis. a pair of magnetic members respectively provided on the carrier portion and the housing and configured to generate a magnetic force to press the carrier portion against the housing, wherein the direction in which the first driving magnet and the first driving coil face each other and the direction in which the pair of magnetic members face each other are perpendicular to each other.

25. The reflective module of claim 24, wherein, the first driving magnet and the first driving coil face each other in a direction parallel to the second axis, and the pair of magnetic members face each other in a direction parallel to the first axis.

26. A camera module comprising: the reflection module according to any one of claims 17 to 25; and a lens module comprising a plurality of lenses configured to refract light passing through the reflection module.

Images