Camera Module

Abstract

The camera module includes: a housing; a rotating bracket configured to be tilted relative to the housing around an axis perpendicular to the optical axis and accommodating a reflective member; a first magnetic member disposed in the rotating bracket; an intermediate guide disposed between the housing and the rotating bracket; and a first ball group including three ball members disposed between the rotating bracket and the intermediate guide. An inner area of ​​a triangle connecting the three ball members in the first ball group to each other and the first magnetic member overlap each other in the direction of the optical axis.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2021-0018459 and Korean Patent Application No. 10-2021-0075973 filed on February 9, 2021 and June 11, 2021, respectively, in the Korean Intellectual Property Office, the disclosures of which are incorporated herein in their entirety by reference for all purposes. Technical Field

[0003] The following description relates to a camera module. For example, the following description relates to a folding camera module including a reflective member configured to change an optical path and achieve optical image stabilization. Background Art

[0004] Due to the remarkable development of information and communication technology and semiconductor technology, the supply and use of electronic devices have increased rapidly. These electronic devices do not stay in their traditional only fields, but tend to provide various functions that converge with each other. For example, an electronic device can provide a camera function to generate and store images or videos by shooting an object.

[0005] For example, in response to the demand for high-capacity and high-performance cameras, electronic devices including camera modules having functions equivalent to those of digital still cameras (DSLR) have recently appeared. The camera functions provided in the electronic devices may include an autofocus function, a zoom function, an image stabilization (IS) function, and the like.

[0006] The image stabilization function can include camera shake correction, hand shake correction, etc., and can prevent the image of the subject from shaking due to unintentional hand shake or camera shake of the photographer when the camera is moving or fixed.

[0007] The image stabilization function may be divided into an optical image stabilization (OIS) function, a digital image stabilization (DIS) function, etc. The optical image stabilization (OIS) function may be a function of correcting image quality by, for example, moving a lens or a camera module in a direction perpendicular to an optical axis direction to correct an optical path. Summary of the invention

[0008] The present summary is provided to introduce a selection of inventive concepts in a concise form, and these inventive concepts will be further described in the following detailed description. The present 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.

[0009] In one general aspect, a camera module includes: a housing; a rotating bracket configured to tilt relative to the housing around an axis perpendicular to an optical axis and accommodating a reflective member; a first magnetic member disposed in the rotating bracket; an intermediate guide disposed between the housing and the rotating bracket; and a first ball group including three ball members disposed between the rotating bracket and the intermediate guide. An inner area of ​​a triangle connecting the three ball members in the first ball group to each other and the first magnetic member overlap each other in the direction of the optical axis.

[0010] The camera module may further include a second magnetic member disposed on the housing or the intermediate guide to face the first magnetic member.

[0011] The first ball set may be partially accommodated in a first guide groove provided in the rotating bracket or the intermediate guide.

[0012] The first guide groove may extend in a circumferential direction of a first axis perpendicular to the optical axis.

[0013] The first guide groove may include three guide grooves, and the three ball members in the first ball set may be respectively received in the three guide grooves.

[0014] The camera module may further include a second ball group including three ball members disposed between the housing and the intermediate guide. An inner area of ​​a triangle connecting the three ball members in the second ball group to each other and the first magnetic member may overlap each other in the direction of the optical axis.

[0015] The second ball set may be partially accommodated in a second guide groove provided in the housing or the intermediate guide.

[0016] The second guide groove may extend in a circumferential direction of a second axis perpendicular to the optical axis.

[0017] The three ball members of the second ball group may include a first ball member, a second ball member, and a third ball member. The second guide groove may be provided in the intermediate guide, and may include a 2-1 guide groove and a 2-2 guide groove spaced apart and parallel to each other. The first ball member and the second ball member may be accommodated in the 2-1 guide groove, and the third ball member may be accommodated in the 2-2 guide groove.

[0018] The camera module may further include an auxiliary ball member received in the 2-1st guide groove and disposed between the first ball member and the second ball member. A diameter of the auxiliary ball member may be smaller than a diameter of the first ball member or the second ball member.

[0019] The camera module may further include an auxiliary ball member received in the 2-2 guide groove and disposed on one or both sides of the third ball member. A diameter of the auxiliary ball member may be smaller than a diameter of the third ball member.

[0020] The second guide groove may include three guide grooves, and the three ball members in the second ball set may be accommodated in the three guide grooves, respectively.

[0021] The camera module may further include: a third magnetic member installed on the rotating bracket or the intermediate guide; and a fourth magnetic member installed on the housing to face the third magnetic member.

[0022] The camera module may further include a back yoke mounted on the housing to face the third magnetic member. The second guide groove may be provided in the housing and may include a 2-1st guide groove and a 2-2nd guide groove spaced apart and parallel to each other. Two of the three ball members in the second ball group may be accommodated in the 2-1st guide groove, and the remaining ball member of the three ball members in the second ball group may be accommodated in the 2-2nd guide groove. The back yoke may be provided closer to the 2-1st guide groove than the 2-2nd guide groove.

[0023] In another general aspect, a camera module includes: a housing; a rotating bracket configured to tilt relative to the housing around an axis perpendicular to the optical axis and accommodating a reflective member; an intermediate guide disposed between the housing and the rotating bracket; a first magnetic member mounted on the rotating bracket or the intermediate guide; and a ball group including three ball members disposed between the housing and the intermediate guide. The inner area of ​​a triangle connecting the three ball members of the ball group to each other and the first magnetic member overlap each other in the direction of the optical axis.

[0024] The camera module may further include a second magnetic member mounted on the housing to face the first magnetic member. The ball set may be partially accommodated in a curved guide groove located in the housing or the intermediate guide.

[0025] In another general aspect, a camera module includes: a housing; a rotating bracket accommodating a reflective member; a first magnetic member disposed in the rotating bracket; a second magnetic member disposed in the housing to face the first magnetic member; an intermediate guide disposed between the housing and the rotating bracket; and a ball member disposed between the rotating bracket and the intermediate guide, or between the housing and the intermediate guide, and configured to guide the rotating bracket to tilt relative to the housing around an axis perpendicular to the optical axis. The center of the traction force generated by the first magnetic member and the second magnetic member is at an inner area of ​​a triangle connecting three ball members in the ball member to each other.

[0026] The traction force may pull the rotating bracket and the intermediate guide toward the housing.

[0027] The ball member may be disposed between the rotating bracket and the intermediate guide, and may be disposed in an arc-shaped guide groove in the rotating bracket or the intermediate guide.

[0028] The ball member may be disposed between the housing and the intermediate guide, and may be disposed in an arc-shaped guide groove in the housing or the intermediate guide.

[0029] Other features and aspects will be apparent from the accompanying drawings, the claims, and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a perspective view of a camera module according to an embodiment.

[0031] Figure 2 According to the embodiment Figure 1 An exploded perspective view of the camera module.

[0032] Figure 3 The supporting structure of the folding module in the embodiment is shown.

[0033] Figure 4 The supporting structure between the rotating support and the intermediate guide in the embodiment is shown.

[0034] Figure 5 The supporting structure between the first type intermediate guide and the housing in the embodiment is shown.

[0035] Figure 6 It is along Figure 3 A cross-sectional view taken along line II'.

[0036] Figure 7 It is along Figure 3 A cross-sectional view taken along line II-II'.

[0037] Figure 8 The rotating bracket and the ball member provided in the rotating bracket in the embodiment are shown.

[0038] Fig. 9 The supporting structure between the second type rotating bracket and the intermediate guide in the embodiment is shown.

[0039] Fig.10 The second type rotating bracket and the ball member provided in the second type rotating bracket in the embodiment are shown.

[0040] Fig.11 In the example including the first type intermediate guide, along Figure 3 A cross-sectional view taken along line III-III'.

[0041] Fig.12 In the example including the first type intermediate guide, along Figure 3 A cross-sectional view taken along line IV-IV'.

[0042] Fig.13The first type intermediate guide and the ball member provided in the first type intermediate guide in the embodiment are shown.

[0043] Fig.14 A supporting structure between the second type intermediate guide and the housing in the embodiment is shown.

[0044] Fig.15 In the example including the second type intermediate guide, Figure 3 A cross-sectional view taken along line III-III'.

[0045] Fig.16 In the example including the second type intermediate guide, Figure 3 A cross-sectional view taken along line IV-IV'.

[0046] Fig.17 is an exploded perspective view of a camera module according to an embodiment.

[0047] Fig.18 The supporting structure between the rotating support and the intermediate guide in the embodiment is shown.

[0048] Fig.19 The supporting structure between the first type intermediate guide and the housing in the embodiment is shown.

[0049] Fig. 20 A supporting structure between the second type intermediate guide and the housing in the embodiment is shown.

[0050] Fig.21 The auxiliary yoke provided on the side wall of the housing in the embodiment is shown.

[0051] Fig. 22 It is shown that in an embodiment the center of traction force is moved due to the auxiliary yoke.

[0052] In all drawings and detailed description, the same reference numerals refer to the same elements. The drawings may not be drawn to scale, and the relative sizes, proportions, and depictions of elements in the drawings may be exaggerated for clarity, illustration, and convenience. DETAILED DESCRIPTION

[0053] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent to those of ordinary skill in the art. For example, except for the operations that must occur in a particular order, the order of the operations described herein is merely an example and is not limited to the order set forth herein, but changes that will be apparent after understanding the disclosure of the present application may be made. In addition, for greater clarity and brevity, the description of features well known in the art may be omitted.

[0054] The features described herein can 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 only 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 disclosure of the present application.

[0055] 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” another 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.

[0056] Herein, it should be noted that use of the word “may” with respect to an embodiment or example (e.g., with respect to what an embodiment or example may include or implement) means that there is at least one embodiment or example that includes or implements such feature, and all embodiments and examples are not limited thereto.

[0057] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0058] Although the terms "first", "second" and "third" may be used herein to describe various members, components, regions, layers or parts, these members, components, regions, layers or parts are not limited by these terms. More specifically, these terms are only used to distinguish one member, component, region, layer or part from another member, component, region, layer or part. Therefore, without departing from the teachings of the examples described herein, the first member, first component, first region, first layer or first part mentioned in the examples may also be referred to as the second member, second component, second region, second layer or second part.

[0059] Spatially relative terms such as "above", "higher", "lower", and "lower" 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 "higher" relative to another element will be "below" or "lower" relative to the other element. Therefore, depending on the spatial orientation of the device, the term "above" covers both "above" and "lower" orientations. 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.

[0060] The terms used herein are only used to describe various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the articles "a", "an" and "the" are intended to include plural forms as well. The words "include", "comprise" and "have" illustrate the presence of stated 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.

[0061] Due to manufacturing techniques and / or tolerances, the shapes shown in the drawings may vary. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include shape variations that occur during manufacturing.

[0062] The features of the examples described herein can be combined in various ways, which will be apparent after obtaining an understanding of the disclosure of the present application. In addition, although the examples described herein have multiple configurations, it will be apparent after obtaining an understanding of the disclosure of the present application that other configurations are also possible.

[0063] Figure 1 is a perspective view of a camera module 1000 according to an embodiment. Figure 2 is an exploded perspective view of the camera module 1000 .

[0064] The camera module 1000 may include, for example, a folding module 1100, a lens module 1200, and an image sensor module 1300. The folding module 1100 and the lens module 1200 may be accommodated in a housing 1010. The cover 1030 may partially surround the upper and side surfaces of the housing 1010 and partially form the appearance of the camera module 1000.

[0065] The folding module 1100 may change the direction of light. That is, light entering the camera through the opening 1031 of the cover 1030 may be reflected by the folding module 1100 toward the lens module 1200. In an embodiment, the folding module 1100 may include a reflective member 1110, and the reflective member 1110 may have a prism or a reflective mirror shape.

[0066] The lens module 1200 may include at least one lens, and light reflected from the folding module 1100 may be refracted while passing through the lens module 1200. The light passing through the lens module 1200 may be incident on the image sensor 1310. In an example where the lens module 1200 includes a plurality of lenses, the plurality of lenses may be arranged along an optical axis direction.

[0067] The image sensor module 1300 may include an image sensor 1310 and a substrate 1320 on which the image sensor 1310 is mounted. When an image is formed on an imaging surface of the image sensor 1310, the image sensor 1310 may generate an image signal of the formed image in response to the formation of the image, and the image signal may be transmitted to an external circuit through the substrate 1320.

[0068] The camera module 1000 may provide an auto focus (hereinafter referred to as “AF”) function and an optical image stabilization (hereinafter referred to as “OIS”) function.

[0069] The lens module 1200 can adjust the focal length while reciprocating along the optical axis. In an embodiment, the AF driver can be provided on one side of the lens module 1200. For example, in an embodiment, the AF magnet 1210 can be mounted on the lens module 1200, and the AF coil 1220 can be provided facing the AF magnet 1210. The lens module 1200 can move along the optical axis by electromagnetic interaction between the AF coil 1220 and the AF magnet 1210. The AF coil 1220 can be attached to a substrate 1050 attached to the housing 1010, and the housing 1010 can include an opening 1060 to allow the AF coil 1220 and the AF magnet 1210 to face each other.

[0070] In order to enable the lens module 1200 to move smoothly, the lens module 1200 may include a ball member 1230 disposed between the lens module 1200 and the bottom surface 1011 of the housing 1010. The lens module 1200 and the bottom surface 1011 of the housing 1010 may include a guide groove 1240 that partially accommodates the ball member 1230. The guide groove 1240 may extend in a direction parallel to the optical axis direction, and the moving direction of the ball member 1230 may be limited to the direction in which the guide groove 1240 extends (i.e., the optical axis direction).

[0071] A traction member configured to pull the lens module 1200 toward the bottom surface 1011 of the housing 1010 may be provided between the lens module 1200 and the housing 1010. In an embodiment, the traction member may include an AF magnet 1210 and a yoke provided on the bottom surface 1011 of the housing 1010. In another embodiment, a separate magnet different from the AF magnet 1210 may be mounted on the lower surface of the lens module 1200, and the yoke may be provided facing the separate magnet.

[0072] The lens module 1200 can be pulled toward the bottom surface 1011 of the housing 1010 by magnetic attraction between the yoke and the AF magnet 1210 (or a separate magnet). Therefore, the ball member 1230 can maintain close contact between the lens module 1200 and the guide groove 1240 in the bottom surface 1011 of the housing 1010, which allows the lens module 1200 to move smoothly in the optical axis direction. That is, the pulling member can prevent the lens module 1200 from moving in a direction different from the optical axis direction (e.g., the Y-axis direction or the X-axis direction), and can help improve the performance of the AF function.

[0073] In an embodiment, the position sensor 1250 that measures the position of the lens module 1200 in the optical axis direction may be disposed inside or outside the AF coil.

[0074] When the folding module 1100 rotates around an axis perpendicular to the optical axis, the OIS function can be implemented.

[0075] In an embodiment, the folding module 1100 may include an OIS driver that rotates the reflective member 1110 about an axis perpendicular to the optical axis relative to the housing 1010. In an embodiment, the OIS driver may include a first OIS driver configured to rotate the reflective member 1110 about a first axis perpendicular to the optical axis, and a second OIS driver configured to rotate the reflective member 1110 about a second axis perpendicular to the optical axis and intersecting the first axis. For example, the optical axis may be parallel to the Z axis, the first axis may be parallel to the Y axis, and the second axis may be parallel to the X axis.

[0076] The OIS driver may allow the reflective member 1110 to rotate about the first axis and / or the second axis, thereby correcting an unstable image formed on the image sensor 1310 when the camera module 1000 is shaken.

[0077] In an embodiment, the first OIS driver may be provided on each side of the rotating bracket 1120. In an embodiment, the first OIS driver may include a first OIS magnet 1161 installed on each side of the rotating bracket 1120 and a first OIS coil 1162 provided facing the first OIS magnet 1161. The first OIS coil 1162 may be fixedly coupled to the housing 1010, and the rotating bracket 1120 may rotate relative to the housing 1010 around a first axis perpendicular to the optical axis by electromagnetic interaction between the first OIS coil 1162 and the first OIS magnet 1161.

[0078] In an embodiment, the second OIS driver may be disposed below the rotating bracket 1120. In an embodiment, the second OIS driver may include a second OIS magnet 1171 mounted on the bottom of the rotating bracket 1120 and a second OIS coil 1172 disposed facing the second OIS magnet 1171 (i.e., on the bottom surface 1011 of the housing 1010). The second OIS coil 1172 may be fixedly coupled to the housing 1010, and the rotating bracket 1120 may be rotated relative to the housing 1010 around a second axis perpendicular to the optical axis by electromagnetic interaction between the second OIS coil 1172 and the second OIS magnet 1171.

[0079] In an embodiment, the first OIS coil 1162 and the second OIS coil 1172 may be attached to the substrate 1050, and the substrate 1050 may be fixed to the housing 1010. In an embodiment, the housing 1010 may include an opening 1060 exposing the first OIS coil 1162 and the second OIS coil 1172 to the inside of the housing 1010.

[0080] In an embodiment, position sensors 1191 and 1192 configured to measure the rotation angle of the rotating bracket 1120 may be disposed inside or outside the coil. The positions of the position sensors 1191 and 1192 relative to the OIS magnets 1161 and 1171 may each change with the rotation of the intermediate guide 1130 (or the rotating bracket 1120), and thus, the rotational displacement of the intermediate guide 1130 (or the rotating bracket 1120) may be measured based on the position change. The position sensors 1191 and 1192 may each be disposed inside or outside the OIS coils 1162 and 1172. The position sensors 1191 and 1192 may include, for example, magnetic sensors such as Hall sensors or magnetoresistive sensors.

[0081] In an embodiment, the folding module 1100 may include a sensing magnet 1163 separated from the OIS magnets 1161 and 1171. In an embodiment, the sensing magnet 1163 may be disposed on top of the first OIS magnet 1161, and the position sensor 1191 disposed outside the first OIS coil 1162 may be disposed in an area where the magnetic field of the sensing magnet 1163 is applied.

[0082] The stopper 1400 may be provided at one side of the folding module 1100, and the stopper 1400 may limit the rotation range of the folding module 1100. The stopper 1400 may include a buffer member 1410 configured to reduce noise or impact when abutting the folding module 1100. The buffer member 1410 may be made of, for example, urethane, rubber, silicone, or other materials having elasticity.

[0083] Figure 3 The supporting structure of the folding module 1100 in the embodiment is shown. Figure 4 The supporting structure between the rotating bracket 1120 and the intermediate guide 1130 in the embodiment is shown. Figure 5 The supporting structure between the intermediate guide 1130 and the housing 1010 in the embodiment is shown.

[0084] Reference Figures 3 to 5 , the intermediate guide 1130 may be inserted between the rotating bracket 1120 and the housing 1010 to guide the rotation of the rotating bracket 1120 .

[0085] It can be assumed that the rotating bracket 1120 rotates relative to the housing 1010 around the first axis and the second axis perpendicular to the optical axis and intersecting each other. In this case, the intermediate guide 1130 can rotate relative to the housing 1010 around the first axis and can rotate relative to the rotating bracket 1120 around the second axis.

[0086] The following description describes how the rotating bracket 1120 rotates relative to the intermediate guide 1130 around a first axis, and how the intermediate guide 1130 rotates relative to the housing 1010 around a second axis.

[0087] Figure 6 It is along Figure 3 A cross-sectional view taken along line II'. Figure 7 is along Figure 3 A cross-sectional view taken along line II-II'. Figure 8 The rotating bracket 1120 and the ball member provided in the rotating bracket 1120 in the embodiment are shown. Fig. 9 The supporting structure between the second type rotating bracket 1120 ′ and the intermediate guide 1130 in the embodiment is shown. Fig.10The second type rotating bracket 1120 ′ and the ball member provided in the second type rotating bracket 1120 ′ in the embodiment are shown.

[0088] Reference Figures 3 to 5 In an embodiment, the folding module 1100 may include a first ball group 1141 and guide grooves 1151 and 1152, wherein the first ball group 1141 is configured to guide the rotating bracket 1120 relative to the first axis C1 (see Figure 6 )'s tilting movement, the guide grooves 1151 and 1152 partially accommodate the first ball group 1141.

[0089] The first ball group 1141 may be disposed between the rotating bracket 1120 and the middle guide 1130 , and the first ball group 1141 may move along the first guide groove 1151 and the second guide groove 1152 respectively located in the rotating bracket 1120 and the middle guide 1130 .

[0090] Reference Figures 3 to 6 , when the ball members 1141a, 1141b, and 1141c of the first ball group 1141 move along the guide grooves 1151 and 1152 respectively located in the rotating bracket 1120 and the intermediate guide 1130, the path passing through the center of the ball members 1141a, 1141b, and 1141c may have an arc shape centered on the first axis C1. In an embodiment, the guide grooves 1151 and 1152 may each include a curved guide groove. In an embodiment, the guide grooves 1151 and 1152 may extend in the circumferential direction of the first axis C1. Referring to Figure 6 and Figure 7 , the first guide groove 1151 and the second guide groove 1152 may extend in an arc shape based on the first axis C1. The centers of curvature of the first guide groove 1151 and the second guide groove 1152 may be located on the first axis C1.

[0091] In an embodiment, the first ball group 1141 may include three ball members 1141a, 1141b, and 1141c, and the three first guide grooves 1151 and the three second guide grooves 1152 may be positioned to guide the three ball members 1141a, 1141b, and 1141c separately from each other. In an embodiment, the first guide groove 1151 may include three guide grooves 1151a, 1151b, and 1151c that are different from each other, and the three ball members 1141a, 1141b, and 1141c may be accommodated in the three guide grooves 1151a, 1151b, and 1151c, respectively.

[0092] In an embodiment, the three guide grooves 1151a, 1151b, and 1151c included in the first guide groove 1151 may each have an arc shape having the same radius R1 relative to the first axis C1. In an embodiment, the three guide grooves 1152a, 1151b, and 1151c included in the second guide groove 1152 may each have an arc shape having the same radius R2 relative to the first axis C1. Here, the radius of the guide groove may be the distance between the first axis C1 and the surface of the guide groove when the guide groove is cut in a plane perpendicular to the first axis C1 and passing through the center of the ball member accommodated in the guide groove.

[0093] The rotating bracket 1120 may rotate about the first axis C1 according to a moment about the Y-axis acting on the rotating bracket 1120 by the first OIS driver.

[0094] In an embodiment, the first guide groove 1151 and the second guide groove 1152 may have one or two contact points with each of the ball members 1141a, 1141b, and 1141c. For example, the first guide groove 1151 may have a V-shape and may contact the ball member at two points. For example, the guide grooves 1152a and 1152b located above the through portion 1131 of the intermediate guide 1130 in the second guide groove 1152 may have two contact points with the ball members 1141a and 1141b, respectively, and the other guide groove 1152c in the second guide groove 1152 may have a quadrilateral cross section and may contact the ball member 1141c at one point.

[0095] In an embodiment, the camera module 1000 may include a traction member configured to provide a traction force, which pulls the rotating bracket 1120 toward the side wall 1012 of the housing 1010. In an embodiment, the traction member may include a first magnetic member 1181 installed in the rotating bracket 1120 and a second magnetic member 1182 installed in the housing 1010. The magnetic attraction between the two magnetic components 1181 and 1182 may play the role of traction. For example, the first magnetic member 1181 may be a magnet, and the second magnetic member 1182 may be a magnet or a yoke. For another example, the first magnetic member 1181 may be a yoke, and the second magnetic member 1182 may be a magnet.

[0096] The intermediate guide 1130 may be interposed between the rotating bracket 1120 and the housing 1010, and when the intermediate guide 1130 is located between the first magnetic member 1181 and the second magnetic member 1182, the traction may be weakened. Therefore, in an embodiment, the intermediate guide 1130 may include a through portion 1131 through which the first magnetic member 1181 and the second magnetic member 1182 face each other. The second magnetic member 1182 may be mounted on a protrusion 1013 extending from the side wall 1012 of the housing 1010 to the first magnetic member 1181. The protrusion 1013 may be partially inserted into the through portion 1131 of the intermediate guide 1130. Therefore, the first magnetic member 1181 and the second magnetic member 1182 may be positioned relatively close to each other, which may prevent the traction from being reduced due to the intermediate guide 1130.

[0097] In another embodiment, the traction member may include a first traction member configured to pull the rotating bracket 1120 and the intermediate guide 1130 to each other and a second traction member configured to pull the housing 1010 and the intermediate guide 1130 to each other. For example, the first traction member may include a pair of magnetic members respectively mounted on the rotating bracket 1120 and the intermediate guide 1130 and facing each other, and the second traction member may include a pair of magnetic members respectively mounted on the intermediate guide 1130 and the housing 1010 and facing each other.

[0098] Reference Figure 8 , the traction force can be applied in the inner area (or inner zone) of the triangle T, wherein the triangle T connects the centers of the three ball members 1141a, 1141b and 1141c to each other. In the present disclosure, the traction force (or the center of the traction force P) can be located in the triangle T. That is, the line on which the resultant force of the traction force generated by the magnetic members 1181 and 1182 acts can pass through the interior of the triangle T. For example, when viewed in the Z-axis direction, the center of weight of the first magnetic member 1181 can be located in the triangle T. For example, the inner area of ​​the triangle T and the first magnetic member 1181 can overlap with each other in a direction parallel to the optical axis direction (i.e., the Z direction). In an embodiment, the traction force can be positioned in the inner area of ​​the triangle T even when the rotating bracket 1120 rotates relative to the intermediate guide 1130. Therefore, each of the three ball members 1141a, 1141b, and 1141c can maintain close contact with the guide grooves 1151 and 1152 on both sides of the guide grooves 1151 and 1152 while performing the OIS function. This arrangement can allow the rotating bracket 1120 to perform only a rotational movement relative to the intermediate guide 1130 about the first axis C1.

[0099] The illustrated embodiment shows that the first ball group 1141 includes two ball members 1141a and 1141b disposed above the first magnetic member 1181 and one ball member 1141c disposed below the first magnetic member 1181. However, the disclosure herein is not limited to the illustrated configuration. That is, it is sufficient that the traction force is located in the triangle T formed by the three ball members 1141a, 1141b, and 1141c, and the specific positions of the three ball members 1141a, 1141b, and 1141c can be changed. Fig. 9 and Fig.10 In an embodiment including the second type rotating bracket 1120 ′, two ball members 1141 a and 1141 b may be disposed on the left side of the first magnetic member 1181 , and one ball member 1141 c may be disposed on the right side of the first magnetic member 1181 .

[0100] Fig.11 In an example including an intermediate guide 1130 (which may be referred to as a first type intermediate guide 1130), Figure 3 A cross-sectional view taken along line III-III'. Fig.12 In the example including the first type intermediate guide 1130, along Figure 3 A cross-sectional view taken along line IV-IV'. Fig.13 The first type intermediate guide 1130 and the ball member provided in the first type intermediate guide 1130 in the embodiment are shown.

[0101] Reference Fig.11 and Fig.12 The folding module 1100 may include a second ball group 1142 and guide grooves 1153 and 1154, wherein the second ball group 1142 is configured to guide the tilting movement of the rotating bracket 1120 relative to the second axis C2, and the guide grooves 1153 and 1154 partially accommodate the second ball group 1142, respectively.

[0102] The second ball group 1142 may be disposed between the intermediate guide 1130 and the housing 1010 , and the second ball group 1142 may move along a third guide groove 1153 and a fourth guide groove 1154 that are respectively located in the intermediate guide 1130 and the housing 1010 .

[0103] When the ball members 1142a, 1142b, 1142c, 1142d, 1142e, and 1142f included in the second ball group 1142 can move along the guide grooves 1153 and 1154 respectively located in the housing 1010 and the intermediate guide 1130, the path through which the centers of the ball members 1142a, 1142b, 1142c, 1142d, 1142e, and 1142f pass can have an arc shape centered on the second axis C2. In an embodiment, the guide grooves 1153 and 1154 can each include a curved guide groove. In an embodiment, the guide grooves 1153 and 1154 can extend in the circumferential direction of the second axis C2. Referring to Fig.11 and Fig.12 , the third guide groove 1153 and the fourth guide groove 1154 may extend in an arc shape based on the second axis C2. The curvature centers of the third guide groove 1153 and the fourth guide groove 1154 may be located on the second axis C2.

[0104] In an embodiment, the third guide groove 1153 may be located in the middle guide 1130 and may include two guide grooves 1153a and 1153b spaced apart from each other. Two ball members 1142b and 1142c of the second ball group 1142 may be accommodated in the guide groove 1153b located on one side of the middle guide 1130, and the other ball member 1142a may be accommodated in the guide groove 1153a located on the other side of the middle guide 1130.

[0105] In an embodiment, the second ball group 1142 may include six ball members 1142a, 1142b, 1142c, 1142d, 1142e, and 1142f, and three of the six ball members 1142a, 1142b, 1142c, 1142d, 1142e, and 1142f may be positioned on each side of the intermediate guide 1130 based on the through portion 1131. The third guide groove 1153 may include two guide grooves 1153a and 1153b, which are positioned on both sides of the intermediate guide 1130 based on the through portion 1131, and each guide groove may guide three of the six ball members 1142a, 1142b, 1142c, 1142d, 1142e, and 1142f. For example, one guide groove 1153a located on one side can guide three ball members 1142a, 1142d and 1142e, while the guide groove 1153b located on the other side can guide the remaining three ball members 1142b, 1142c and 1142f. The fourth guide groove 1154 may also include two guide grooves 1154a and 1154b, which are located on both sides of the housing 1010 based on the second magnetic member 1182, and each guide groove can guide three of the six ball members 1142a, 1142b, 1142c, 1142d, 1142e and 1142f.

[0106] The two guide grooves 1153a and 1153b included in the third guide groove 1153 may have an arc shape having the same radius R3 relative to the second axis C2. The two guide grooves 1154a and 1153b included in the fourth guide groove 1154 may have an arc shape having the same radius R4 relative to the second axis C2. Here, the radius of the guide groove may be the distance between the second axis C2 and the surface of the guide groove when the guide groove is cut in a plane perpendicular to the second axis C2 and passing through the center of the ball member accommodated in the guide groove. The rotating bracket 1120 may rotate around the second axis C2 according to the moment around the X-axis acting on the rotating bracket 1120 by the second OIS driver.

[0107] In an embodiment, the intermediate guide 1130 may be pulled toward the side wall 1012 of the housing 1010 by a first magnetic member 1181 mounted on the rotating bracket 1120 and a second magnetic member 1182 mounted on the housing 1010. That is, the pulling member may not directly pull the intermediate guide 1130 toward the housing 1010, but may pull the rotating bracket 1120 toward the side wall 1012 of the housing 1010, thereby allowing the intermediate guide 1130 to be pulled toward the side wall 1012 of the housing 1010 as well.

[0108] In an embodiment, three ball members 1142a, 1142b, and 1142c of six ball members 1142a, 1142b, 1142c, 1142d, 1142e, and 1142f disposed between the intermediate guide 1130 and the housing 1010 may support the intermediate guide 1130. For example, one ball member 1142a of the three ball members 1142a, 1142d, and 1142e located on one side of the intermediate guide 1130 and two ball members 1142b and 1142c of the three ball members 1142b, 1142c, and 1142f located on the other side of the intermediate guide 1130 may support the intermediate guide 1130 pulled toward the sidewall 1012 of the housing 1010 by the pulling force. In the present disclosure, the ball member 1142a, 1142b, or 1142c supporting the intermediate guide 1130 may be referred to as a supporting ball member, and the ball member 1142d, 1142e, or 1142f not supporting the intermediate guide 1130 may be referred to as an auxiliary ball member.

[0109] In an embodiment, the auxiliary ball member 1142d, 1142e or 1142f may have a smaller diameter than the supporting ball member 1142a, 1142b or 1142c. The auxiliary ball member 1142d, 1142e or 1142f may be used to limit the position of the supporting ball member 1142a, 1142b or 1142c. For example, the outer two auxiliary ball members 1142d and 1142e of the three ball members 1142a, 1142d and 1142e on one side of the intermediate guide 1130 may allow the central supporting ball member 1142a to be positioned at the center of the third guide groove 1153. Furthermore, the central auxiliary ball member 1142f among the three ball members 1142b, 1142c, and 1142f on the other side of the intermediate guide 1130 may allow the distance between the two supporting ball members 1142b and 1142c on both sides of the auxiliary ball member 1142f to be maintained at a certain distance or more.

[0110] Figures 11 to 13 Three auxiliary ball members 1142d, 1142e, and 1142f are shown, which is only an example. The auxiliary ball members 1142d, 1142e, or 1142f may be used to limit the position of the supporting ball members 1142a, 1142b, or 1142c, and when the length of the third guide groove 1153 is short enough, some of the auxiliary ball members 1142d, 1142e, and 1142f may be omitted. For example, Fig.13 Some or all of the two auxiliary ball members 1142d and 1142e on the left side of the middle guide 1130. In addition, Figures 11 to 13It is shown that the auxiliary ball members 1142d and 1142e are arranged on both sides of the supporting ball members, or that one auxiliary ball member 1142f is arranged between the supporting ball members 1142b and 1142c, which is only an example. For example, two or more auxiliary ball members may be arranged on one side of the supporting ball members 1142a, 1142b or 1142c. For another example, two or more auxiliary ball members may be arranged between the supporting ball members 1142b and 1142c.

[0111] Reference Fig.13 In an embodiment, the traction force may be positioned (e.g., centered) in an inner region (or inner zone) of a triangle T connecting the centers of the three supporting ball members 1142a, 1142b, and 1142c. For example, the inner region of the triangle T and the first magnetic member 1181 may overlap each other in a direction parallel to the optical axis direction (i.e., the Z direction). In an embodiment, the traction force may be located in the inner region of the triangle T even when the intermediate guide 1130 rotates relative to the housing 1010. Therefore, while performing the OIS function, each of the three ball members 1142a, 1141b, and 1141c may maintain close contact with the guide grooves 1153 and 1154 on both sides of the guide grooves 1153 and 1154. This arrangement may prevent the intermediate guide 1130 from moving relative to the second axis C2 in a direction different from its rotation direction.

[0112] In an embodiment, the third guide groove 1153 may include a protrusion 1132 at an end thereof to prevent the second ball group 1142 from being separated from the third guide groove 1153 .

[0113] In an embodiment, one of the fourth guide grooves 1154 (e.g., guide groove 1154a or 1154b) may contact the ball member at one point. For example, the ball member 1142a accommodated in the support ball member in the guide groove 1154a located on one side of the housing 1010 may contact the guide groove 1154a at one point.

[0114] Fig.14 The supporting structure between the second type intermediate guide 1130 ′ and the housing 1010 in the embodiment is shown. Fig.15 In the example including the second type intermediate guide 1130', along Figure 3 A cross-sectional view taken along line III-III'. Fig.16 In the example including the second type intermediate guide 1130', along Figure 3 A cross-sectional view taken along line IV-IV'.

[0115] In an embodiment, the second type intermediate guide 1130' may include three guide grooves 1155, 1156, and 1157 that are different from each other, and the three ball members 1142a, 1142b, and 1142c included in the second ball group 1142 may be respectively accommodated in the guide grooves 1155, 1156, and 1157. In an embodiment, the first ball member 1142a may be provided on one side of the second type intermediate guide 1130', and the second ball member 1142b and the third ball member 1142c may be provided on the other side of the second type intermediate guide 1130'. The first ball member 1142a may be partially accommodated in the fifth guide groove 1155, and the second ball member 1142b and the third ball member 1142c may be partially accommodated in the sixth guide groove 1156 and the seventh guide groove 1157, respectively.

[0116] When the ball members move along the fourth to seventh guide grooves 1154, 1155, 1156 and 1157 respectively located in the housing 1010 and the second type intermediate guide 1130', the paths through which the centers of the ball members 1142a, 1142b and 1142c pass may have an arc shape centered on the second axis C2. Fig.15 and Fig.16 , the fourth to seventh guide grooves 1154, 1155, 1156, and 1157 may extend in an arc shape based on the second axis C2. The curvature centers of the fourth to seventh guide grooves 1154, 1155, 1156, and 1157 may be located on the second axis C2.

[0117] The fifth to seventh guide grooves 1155, 1156, and 1157 may each have an arc shape having the same radius R3 relative to the second axis C2. The two guide grooves 1154a and 1154b included in the fourth guide groove 1154 may have an arc shape having the same radius R4 relative to the second axis C2. The rotating bracket 1120 may rotate around the second axis C2 according to the moment of force acting on the rotating bracket 1120 around the X-axis by the second OIS driver.

[0118] The fifth to seventh guide grooves 1155 , 1156 , and 1157 may allow the center of the traction force P to be positioned in a triangle formed by the ball members 1142 a , 1142 b , and 1142 c while the second type intermediate guide 1130 ′ rotates relative to the housing 1010 .

[0119] In an embodiment, the guide grooves 1155, 1156, and 1157 located in the second type intermediate guide 1130' may limit the respective movement ranges of the ball members 1142a, 1142b, and 1142c, respectively.

[0120] In an embodiment, the fifth guide groove 1155 may be provided in the middle portion of the second type intermediate guide 1130'. The protrusion 1132 may be located on each side of the fifth guide groove 1155 to limit the range of movement of the first ball member 1142a. Therefore, even when the first ball member 1142a performs rolling motion along the fifth guide groove 1155 as the second type intermediate guide 1130' rotates relative to the housing 1010, the center of the traction force P may be located in the support area.

[0121] In an embodiment, the protrusion 1132 may be disposed between the sixth guide groove 1156 and the seventh guide groove 1157. Therefore, the distance between the second ball member 1142b and the third ball member 1142c may be maintained equal to or greater than the length of the protrusion 1132. That is, the protrusion 1132 may replace the first type support structure (e.g., Figure 5 The auxiliary ball member (e.g., Figure 5 In an exemplary embodiment, the protrusion 1132 may be located at both ends of the sixth guide groove 1156 and the seventh guide groove 1157 to prevent the second ball member 1142b and the third ball member 1142c from being separated from the guide grooves, respectively.

[0122] Referring to the drawings, the embodiment of the present disclosure describes that the rotating bracket 1120 rotates around the first axis C1 relative to the intermediate guide 1130, and the intermediate guide 1130 rotates around the second axis C2 relative to the side wall 1012 of the housing 1010. However, this structure is only an example, and the relative rotation direction of the rotating bracket 1120 and the intermediate guide 1130 may be changed. That is, in another embodiment, the rotating bracket 1120 may rotate around the second axis C2 relative to the intermediate guide 1130, and the intermediate guide 1130 may rotate around the first axis C1 relative to the side wall 1012 of the housing 1010. For example, the first guide groove 1151 and the second guide groove 1152 may extend in an arc shape based on the second axis C2, and the third guide groove 1153 and the fourth guide groove 1154 may extend in an arc shape based on the first axis C1.

[0123] Reference Figure 4 and Figure 5, the first guide groove 1151 and the second guide groove 1152 can be formed as three guide grooves respectively to accommodate three ball members 1141a, 1141b and 1141c respectively, which is only an example. In another embodiment, the first guide groove 1151 and the second guide groove 1152 can each have the same shape as the third guide groove 1153 located in the first type intermediate guide 1130 or the fourth guide groove 1154 located in the side wall 1012. For example, the upper two ball members 1141a and 1141b of the first ball group 1141 can be respectively accommodated in two separate guide grooves, and the two guide grooves can be replaced by one guide groove. In this case, an auxiliary ball member can be additionally arranged between the two ball members 1141a and 1141b accommodated in one guide groove. The auxiliary ball member can maintain the distance between the two ball members.

[0124] In an example in which four ball members are interposed between the intermediate guide 1130 and the rotating bracket 1120, if the rotating bracket 1120 rotates relative to the intermediate guide 1130, unexpected shaking may occur. Since some ball members disposed between the rotating bracket 1120 and the intermediate guide 1130 and supporting the rotating bracket 1120 may change when the rotating bracket 1120 rotates, shaking may occur. Even when the four ball members support the rotating bracket 1120, one plane is sufficiently defined by three points, and due to manufacturing tolerances of the housing 1010, the intermediate guide 1130, or the rotating bracket 1120, it is difficult for the four ball members to support the rotating bracket 1120 while being in perfect close contact with the rotating bracket 1120. That is, only three of the four ball members may actually support the rotating bracket 1120, and the other ball member may not support the rotating bracket 1120 (i.e., may not provide a reaction force to the traction force). In addition, when the rotating bracket 1120 rotates relative to the intermediate guide 1130, the configuration of the four ball members supporting the rotating bracket 1120 may change. For example, it may be assumed that two ball members are provided in the first side of the rotating bracket 1120, and two ball members are provided in the second side of the rotating bracket 1120. In this case, when the traction force approaches one side of the rotating bracket 1120, one of the two ball members on the other side may support the traction force, and when the traction force approaches the other side of the rotating bracket 1120, both ball members on the one side may support the traction force. Due to the change in the supporting ball members, the rotating bracket 1120 may swing in a direction different from the direction of movement designed for it when rotating relative to the intermediate guide 1130. When four ball members are provided between the intermediate guide 1130 and the housing 1010 and support the intermediate guide 1130, the same problem as described above may occur.

[0125] According to an embodiment of the present disclosure, only three specific ball members 1141a, 1141b, and 1141c disposed between the rotating bracket 1120 and the intermediate guide 1130 or 1130' can support the rotating bracket 1120. That is, regardless of the position of the rotating bracket 1120 relative to the intermediate guide 1130 or 1130', the three specific ball members 1141a, 1141b, and 1141c can continuously support the rotating bracket 1120.

[0126] In addition, in the embodiment, only three specific ball members 1142a, 1142b, and 1142c disposed between the intermediate guide 1130 or 1130' and the housing 1010 can support the intermediate guide 1130 or 1130'. That is, regardless of the position of the intermediate guide 1130 or 1130' relative to the housing 1010, the three specific ball members 1142a, 1142b, and 1142c can continuously support the intermediate guide 1130 or 1130'. Therefore, the OIS function can be performed more smoothly.

[0127] In the disclosure herein, three-point support may mean that three ball members support the rotating bracket 1120 (or the middle guide 1130 or 1130'), and may not necessarily mean that three points support the rotating bracket 1120. When the ball member is actually in close contact with the guide groove located on one side of the middle guide 1130 or 1130' or the housing 1010, one or two contact points (or contact surfaces) may be generated between the ball member and the guide groove.

[0128] Fig.17 is a perspective view of a camera module 1000 ′ according to an embodiment. Fig.18 A support structure between the rotating bracket 1120 and the first type intermediate guide 1130 in the embodiment is shown. Fig.19 The supporting structure between the first type intermediate guide 1130 and the housing 1010 ′ in the embodiment is shown. Fig. 20 The supporting structure between the second type intermediate guide 1130' and the housing 1010' in the embodiment is shown.

[0129] In addition to the OIS driver, the housing 1010' and the substrate 1050', refer to Figures 17 to 22 Described embodiments and references Figures 2 to 6 Those described are the same, so the following description omits its redundant description.

[0130] In an embodiment, the folding module 1100' may include an OIS driver that rotates the reflective member 1110 relative to the housing 1010' around an axis perpendicular to the optical axis. In an embodiment, the OIS driver may include a first OIS driver and a second OIS driver, wherein the first OIS driver is configured to rotate the reflective member 1110 around a first axis C1 perpendicular to the optical axis, and the second OIS driver is configured to rotate the reflective member 1110 around a second axis C2 perpendicular to the optical axis and intersecting the first axis C1. For example, the optical axis may be parallel to the Z axis, the first axis C1 may be parallel to the Y axis, and the second axis C2 may be parallel to the X axis.

[0131] In an embodiment, the first OIS driver may be provided on each side of the rotating bracket 1120. In an exemplary embodiment, the first OIS driver may include a first OIS magnet 1161 mounted on each side of the rotating bracket 1120, and a first OIS coil 1162 provided facing the first OIS magnet 1161. The first OIS coil 1162 may be fixedly coupled to the housing 1010', and the rotating bracket 1120 may rotate relative to the housing 1010' about a first axis C1 perpendicular to the optical axis by electromagnetic interaction between the first OIS coil 1162 and the first OIS magnet 1161.

[0132] In an embodiment, the second OIS driver may be provided at one side of the intermediate guide 1130. In an embodiment, the second OIS driver may include a second OIS magnet 1171 mounted on a surface of the intermediate guide 1130 opposite to a surface of the intermediate guide 1130 facing the rotating bracket 1120, and a second OIS coil 1172 provided facing the second OIS magnet 1171. The second OIS coil 1172 may be fixedly coupled to the housing 1010', and the intermediate guide 1130 may rotate relative to the housing 1010' about a second axis C2 perpendicular to the optical axis by electromagnetic interaction between the second OIS coil 1172 and the second OIS magnet 1171. The rotating bracket 1120 may perform only a rotational motion relative to the intermediate guide 1130 about the first axis C1, and when the intermediate guide 1130 rotates about the second axis C2, the rotating bracket 1120 may also rotate about the second axis C2.

[0133] In an embodiment, the first OIS coil 1162 and the second OIS coil 1172 may be connected to the substrate 1050', and the substrate 1050' may be fixed to the housing 1010. In an embodiment, the housing 1010' may include an opening 1060 exposing the first OIS coil 1162 and the second OIS coil 1172 to the inside of the housing 1010'.

[0134] In the following, reference Figures 17 to 19Give a description.

[0135] The first traction member may be disposed between the rotating bracket 1120 and the intermediate guide 1130. The first traction member may include a first magnetic member 1181 mounted on the rotating bracket 1120 and a second magnetic member 1182 mounted on the intermediate guide 1130. The first magnetic member 1181 and the second magnetic member 1182 may generate magnetic attraction to each other. For example, the first magnetic member 1181 may be a magnet, and the second magnetic member 1182 may be a magnet or a yoke. For another example, the first magnetic member 1181 may be a yoke, and the second magnetic member 1182 may be a magnet.

[0136] The second traction member may be disposed between the intermediate guide 1130 and the housing 1010'. The second traction member may include a third magnetic member 1183 mounted on the intermediate guide 1130 and a fourth magnetic member 1184 mounted on the housing 1010. The third magnetic member 1183 and the fourth magnetic member 1184 may generate magnetic attraction to each other. For example, the third magnetic member 1183 may be a magnet, and the fourth magnetic member 1184 may be a magnet or a yoke.

[0137] The fourth magnetic member 1184 may be attached to a substrate 1050' provided on a side surface of the housing 1010'. The substrate 1050' may be coupled to the housing 1010' for fixedly mounting the fourth magnetic member 1184 on the housing 1010'.

[0138] A back yoke may be additionally provided between the first magnetic member 1181 and the rotating bracket 1120 and / or between the intermediate guide 1130 and the third magnetic member 1183. For example, the back yoke may be attached to the rotating bracket 1120 or the intermediate guide 1130, and the first magnetic member 1181 or the third magnetic member 1183 may be connected to the back yoke. The back yoke may prevent magnetic flux from leaking from the first magnetic member 1181 or the third magnetic member 1183, thereby relatively increasing magnetic attraction between the first magnetic member 1181 or the third magnetic member 1183 and the second magnetic member 1182 or the fourth magnetic member 1184.

[0139] The third magnetic member 1183 and the second OIS magnet 1171 are represented by different numbers, but are the same components. That is, the third magnetic member 1183 can act as a magnet to provide traction together with the fourth magnetic member 1184, and interact with the second OIS coil 1172 to provide driving force to the intermediate guide 1130 (or the rotating bracket 1120).

[0140] In an embodiment, a position sensor 1192 configured to measure the rotational displacement of the rotating bracket 1120 may be provided inside or outside the second OIS coil 1172. The position of the position sensor 1192 relative to the third magnetic member 1183 may change as the intermediate guide 1130 (or the rotating bracket 1120) rotates, and the rotational displacement of the intermediate guide 1130 may be measured based on the position change. The position sensor 1192 may include, for example, a magnetic sensor such as a Hall sensor or a magnetoresistive sensor.

[0141] Reference Fig.19 In an embodiment, the second ball group 1142 disposed between the housing 1010' and the first type intermediate guide 1130 may include three ball members 1142a, 1142d, and 1142e disposed on one side of the intermediate guide 1130, and three ball members 1142b, 1142c, and 1142f disposed on the other side of the intermediate guide 1130. The ball members 1142a, 1142d, and 1142e disposed on one side may be partially accommodated in the guide groove 1153a, and the ball members 1142b, 1142c, and 1142f disposed on the other side of the first type intermediate guide 1130 may be partially accommodated in the guide groove 1153b. The ball members 1142a, 1142b, 1142c, 1142d, 1142e, and 1142f may be partially accommodated in the fourth guide groove 1154.

[0142] Three supporting ball members 1142a, 1142b, 1142c, 1142d, 1142e, and 1142f among the six ball members 1142a, 1142b, 1142c, 1142d, 1142e, and 1142f may support the first type intermediate guide 1130 (or the rotating bracket 1120). The remaining ball members 1142d, 1142e, and 1142f among the six ball members 1142a, 1142b, 1142c, 1142d, 1142e, and 1142f may not directly support the first type intermediate guide 1130, and the positions of the supporting ball members on the guide grooves may be limited. For example, since the auxiliary ball members 1142d and 1142e are arranged on both sides of the first support ball member 1142a, the first support ball member 1142a can be positioned in the central portion of the third guide groove 1153, and since the auxiliary ball member 1142f is arranged between the second support ball member 1142b and the third support ball member 1142c, the second support ball member 1142b and the third support ball member 1142c can maintain a certain length or longer distance from each other.

[0143] Reference Fig. 20In an embodiment, the second ball group 1142 disposed between the housing 1010 and the second type intermediate guide 1130' may include a ball member 1142a disposed on one side of the second type intermediate guide 1130' and two ball members 1142b and 1142c disposed on the other side of the second type intermediate guide 1130'. The ball member 1142a disposed on one side of the second type intermediate guide 1130' may be partially accommodated in the fifth guide groove 1155, and the two ball members 1142b and 1142c disposed on the other side of the second type intermediate guide 1130' may be partially accommodated in the sixth guide groove 1156 and the seventh guide groove 1157, respectively. The protrusions 1132 may be respectively disposed on both sides of the fifth guide groove 1155, and between the sixth guide groove 1156 and the seventh guide groove 1157. Fig. 20 In the embodiment, Fig.19 Different from the supporting structure, the position of the supporting ball member 1142a, 1142b or 1142c may be restricted by the position or shape of the guide groove, and the auxiliary ball member 1142d, 1142e or 1142f may not be necessary.

[0144] Fig.21 An auxiliary yoke is shown disposed on a side wall 1012 of the housing 1010 ′ in an embodiment. Fig. 22 An embodiment is shown in which the center of the traction force P is moved due to the auxiliary yoke.

[0145] In an embodiment, the traction member may allow the center of the traction force P to be biased to one side of the folding module 1100'. In an embodiment, the fourth magnetic member 1184 may be disposed facing the third magnetic member 1183. Here, the fourth magnetic member 1184 may be asymmetric.

[0146] In an embodiment, the fourth magnetic member 1184 may include a main magnetic member 1184a and an auxiliary magnetic member 1184b. The main magnetic member 1184a and the third magnetic member 1183 may provide a main traction force, and the auxiliary magnetic member 1184b may move the center of the traction force to one side of the folding module 1100. For example, the auxiliary magnetic member 1184b may be disposed facing an eccentric point of the third magnetic member 1183. The center of the magnetic attraction P1 generated between the third magnetic member 1183 and the main magnetic member 1184a may be located at the center of the third magnetic member 1183, and the center of the magnetic attraction between the third magnetic member 1183 and the auxiliary magnetic member 1184b may be located at a point deviated to one side from the center of the third magnetic member 1183. Therefore, the center of the magnetic attraction P2 generated between the third magnetic member 1183 and the fourth magnetic member 1184 may be located at a point deviated from the center of the third magnetic member 1183.

[0147] In an embodiment, the auxiliary magnetic member 1184b can be a member separate from the main magnetic member 1184a. For example, the main magnetic member 1184a can be disposed outside the substrate 1050', while the auxiliary magnetic member 1184b can be disposed inside the substrate 1050'. The illustrated embodiment shows that the auxiliary magnetic member 1184b is located inside the second OIS coil 1172.

[0148] In another embodiment, the auxiliary magnetic member 1184b is formed integrally with the main magnetic member 1184a. For example, the auxiliary magnetic member 1184b may be a portion protruding and extending from the main magnetic member 1184a. When the main magnetic member 1184a is disposed outside the substrate 1050, the auxiliary magnetic member 1184b may penetrate the substrate 1050' and protrude into the interior of the substrate 1050'.

[0149] The following description refers to Fig. 22 The effect of the auxiliary magnetic member 1184b is described.

[0150] First, in the absence of the auxiliary magnetic member 1184b, the center of the traction force P1 can be positioned in the inner area of ​​the triangle T connecting the three ball members 1142a, 1142b and 1142c to each other, and when the intermediate guide 1130 (or the rotating bracket 1120) rotates around the second axis C2, the center of the traction force P1 can move vertically. The intermediate guide 1130 (or the rotating bracket 1120) can be stably supported, and the OIS function can be smoothly performed only when the center of the traction force P1 does not deviate from the inner area of ​​the triangle T. Therefore, in the absence of the auxiliary magnetic member 1184b, the center of the traction force P1 can move within the first range.

[0151] By using the auxiliary magnetic member 1184b, the center of the traction force P2 can be moved to the side of the intermediate guide 1130 where two of the three ball members 1142a, 1142b and 1142c are positioned. It can be assumed that the line connecting the two ball members 1142b and 1142c provided on one side of the intermediate guide 1130 is the bottom of the triangle T. In this case, the closer the center of the traction force P2 is positioned to the bottom of the triangle T, the longer the section in which the center of the traction force P2 can move vertically. That is, by using the auxiliary magnetic member 1184b, the intermediate guide 1130 (or the rotating bracket 1120) can have a larger rotation range around the second axis C2 than in the case without the auxiliary magnetic member 1184b. Therefore, when the auxiliary magnetic member 1184b is additionally provided, the disclosure herein can increase the range in which the rotating bracket 1120 (or the reflecting member 1110) can rotate around the second axis, which can improve the performance of the OIS function.

[0152] As described above, the camera module according to the embodiments disclosed herein can obtain high-quality images by providing a stable optical image stabilization (OIS) function. For example, the camera module can provide an OIS function with excellent performance by controlling the optical element to move stably.

[0153] Although the present disclosure includes specific examples, it will be apparent after understanding the disclosure of the present application 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 should be interpreted in a descriptive sense only, and not for limiting purposes. The description of the features or aspects in each example should be considered applicable to similar features or aspects in other examples. Suitable results may also be obtained if the described techniques are performed in a different order, and / or if the components in the described system, architecture, device or circuit are combined in a different manner and / or replaced or supplemented with other components or their equivalents. 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. A camera module, comprising: case; A lens module is disposed in the housing; a rotating bracket configured to be tilted relative to the housing about an axis perpendicular to the optical axis and accommodating a reflecting member; A first magnetic member is disposed in the rotating bracket; An intermediate guide member, disposed between the housing and the rotating bracket; as well as a first ball group including three ball members disposed between the rotating bracket and the intermediate guide, wherein an inner region of a triangle connecting the three ball members in the first ball group to one another and the first magnetic member overlap with each other in the direction of the optical axis. 2 . The camera module according to claim 1 , further comprising a second magnetic member provided on the housing or the intermediate guide to face the first magnetic member.

3. The camera module according to claim 2, wherein: The first ball group is partially accommodated in a first guide groove provided in the rotating bracket or the intermediate guide.

4. The camera module according to claim 3, wherein: The first guide groove extends in a circumferential direction of a first axis perpendicular to the optical axis.

5. The camera module according to claim 4, wherein: The first guide groove includes three guide grooves, and the three ball members in the first ball set are respectively accommodated in the three guide grooves.

6. The camera module according to claim 1, further comprising a second ball group including three ball members disposed between the housing and the intermediate guide, in, An inner area of ​​a triangle connecting the three ball members in the second ball group to each other and the first magnetic member overlap with each other in the direction of the optical axis.

7. The camera module according to claim 6, wherein: The second ball set is partially accommodated in a second guide groove provided in the housing or the intermediate guide.

8. The camera module according to claim 7, wherein: The second guide groove extends in a circumferential direction of a second axis perpendicular to the optical axis.

9. The camera module according to claim 7, wherein: The three ball members in the second ball set include a first ball member, a second ball member and a third ball member, wherein the second guide groove is provided in the intermediate guide member and comprises a 2-1 guide groove and a 2-2 guide groove which are spaced apart from and parallel to each other, and The first ball member and the second ball member are accommodated in the 2-1 guide groove, and the third ball member is accommodated in the 2-2 guide groove.

10. The camera module according to claim 9, further comprising an auxiliary ball member received in the 2-1st guide groove and disposed between the first ball member and the second ball member, in, The auxiliary ball member has a diameter smaller than a diameter of the first ball member or the second ball member.

11. The camera module according to claim 9, further comprising an auxiliary ball member received in the 2-2 guide groove and disposed on one side or both sides of the third ball member, in, The auxiliary ball member has a diameter smaller than a diameter of the third ball member.

12. The camera module according to claim 7, wherein: The second guide groove includes three guide grooves, and the three ball members in the second ball set are respectively accommodated in the three guide grooves.

13. The camera module according to claim 7, further comprising: A third magnetic member is mounted on the rotating bracket or the intermediate guide; as well as A fourth magnetic member is mounted on the housing to face the third magnetic member.

14. The camera module according to claim 13, further comprising a back yoke mounted on the housing to face the third magnetic member, in, The second guide groove is disposed in the housing and includes a 2-1 guide groove and a 2-2 guide groove which are spaced apart from and parallel to each other. wherein two of the three ball members in the second ball group are accommodated in the 2-1 guide groove, and the remaining ball member of the three ball members in the second ball group is accommodated in the 2-2 guide groove, and Wherein, the back yoke is arranged to be closer to the 2-1 guide groove than the 2-2 guide groove.

15. A camera module, comprising: case; A lens module is disposed in the housing; a rotating bracket configured to be tilted relative to the housing about an axis perpendicular to the optical axis and accommodating a reflecting member; An intermediate guide member, disposed between the housing and the rotating bracket; A first magnetic member, mounted on the rotating bracket or the intermediate guide; as well as a ball group including three ball members disposed between the housing and the intermediate guide, wherein an inner area of ​​a triangle connecting the three ball members in the ball set to one another and the first magnetic member overlap with each other in the direction of the optical axis.

16. The camera module according to claim 15, further comprising a second magnetic member mounted on the housing to face the first magnetic member, in, The ball set is partially accommodated in a curved guide groove located in the housing or the intermediate guide.

17. A camera module, comprising: case; A lens module is disposed in the housing; A rotating bracket accommodating the reflective component; A first magnetic member is disposed in the rotating bracket; a second magnetic member disposed in the housing to face the first magnetic member; An intermediate guide member, disposed between the housing and the rotating bracket; as well as a ball member disposed between the rotating support and the intermediate guide or between the housing and the intermediate guide and configured to guide the rotating support to tilt relative to the housing around an axis perpendicular to the optical axis, The center of the pulling force generated by the first magnetic member and the second magnetic member is at an inner area of ​​a triangle connecting three of the ball members to each other.

18. The camera module according to claim 17, wherein: The pulling force pulls the rotating bracket and the intermediate guide toward the housing.

19. The camera module according to claim 17, wherein: The ball member is disposed between the rotating bracket and the intermediate guide, and is disposed in an arc-shaped guide groove in the rotating bracket or the intermediate guide.

20. The camera module according to claim 17, wherein: The ball member is disposed between the housing and the intermediate guide, and is disposed in an arc-shaped guide groove in the housing or the intermediate guide.

Images