Reflection module and camera module including same

Abstract

The present disclosure relates to a reflective module comprising: a housing; a guide member provided so as to be relatively rotatable on the housing based on the first rotation shaft; and a bracket provided to be relatively rotatable on the guide member based on a second rotation axis and having a reflective member mounted therein, in which one of the guide member and the bracket is provided with a first traction magnet, and the other of the guide member and the bracket is provided with a second traction magnet facing the first traction magnet, and an attractive force and a repulsive force are applied between the first traction magnet and the second traction magnet. The present disclosure also relates to a camera module comprising the reflective module.

Description

[0001] Cross-references to related applications

[0002] This application claims the priority of Korean Patent Application No. 10-2024-0010855, filed on January 24, 2024, Korean Patent Application No. 10-2024-0145290, filed on October 22, 2024, and Korean Patent Application No. 10-2025-0009543, filed on January 22, 2025, all disclosures of which are incorporated herein by reference for all purposes. Technical Field

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

[0004] A camera module may have components that bend the path of light. For example, a reflective component (e.g., a prism, a mirror) located in front of the lens module may be used in the camera module of a mobile device.

[0005] Additionally, the camera module can have a shake correction function that compensates for camera shake during image capture to increase resolution. This shake correction function can be achieved through the dual-axis rotation of the reflective component.

[0006] In this case, since the reflector is set in a rotatable state, there may be a problem that the reflector tilts to one side when the camera module is turned off.

[0007] Furthermore, the biaxial rotation of the reflector may require multiple actuators, but the structure of multiple actuators can be complex, which may increase the size and weight of the reflector.

[0008] The above information is presented as background information and is intended to aid in understanding this disclosure. No determination or assertion is made as to whether any of the above content can be used as prior art with respect to this disclosure. Utility Model Content

[0009] This summary portion is provided to briefly introduce the selection of 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.

[0010] In one general aspect, a reflection module includes a housing, a guide member disposed to be relatively rotatable on the housing based on a first rotation axis, and a bracket disposed to be relatively rotatable on the guide member based on a second rotation axis and having a reflection member mounted therein, wherein a first traction magnet is provided on one of the guide member and the bracket, a second traction magnet facing the first traction magnet is provided on the other of the guide member and the bracket, and both attractive force and repulsive force are applied between the first traction magnet and the second traction magnet.

[0011] One surface of the first traction magnet and one surface of the second traction magnet can face each other, and the number of polarities of one surface of the first traction magnet and the number of polarities of one surface of the second traction magnet can be different from each other.

[0012] On one surface of the first traction magnet and one surface of the second traction magnet, the area in which opposite polarities face each other can be greater than the area in which the same polarities face each other.

[0013] The magnitude of the attractive force can be greater than the magnitude of the repulsive force.

[0014] One surface of the first traction magnet and one surface of the second traction magnet can face each other, one surface of the first traction magnet can have one polarity, and one surface of the second traction magnet can have a plurality of polarities including opposite polarities.

[0015] One surface of the second traction magnet can have two first polarities spaced apart from each other and a second polarity disposed between the two first polarities, the first polarities can be the same polarity as one polarity of one surface of the first traction magnet, and the first polarities and the second polarity can be opposite polarities.

[0016] The length of the second polarity can be equal to or longer than the sum of the lengths of the two first polarities, and the length of the second polarity and the lengths of the two first polarities can be lengths in the direction of the first rotation axis.

[0017] A boundary region between the plurality of polarities can be parallel to the second rotation axis.

[0018] Among the first traction magnet and the second traction magnet, the length of the traction magnet mounted on the bracket can be equal to or longer than the length of the traction magnet mounted on the guide member, and the lengths of the first traction magnet and the second traction magnet can be lengths in the direction of the first rotation axis.

[0019] The first traction magnets can include a first-first traction magnet and a first-second traction magnet spaced apart from each other in the direction of the first rotation axis, the second traction magnets can include a second-first traction magnet facing the first-first traction magnet and a second-second traction magnet facing the first-second traction magnet, both attractive and repulsive forces can be applied between the first-first traction magnet and the second-first traction magnet, and both attractive and repulsive forces can be applied between the first-second traction magnet and the second-second traction magnet.

[0020] The number of polarities of one surface of the first-first traction magnet facing each other can be different from the number of polarities of one surface of the second-first traction magnet, and the number of polarities of one surface of the first-second traction magnet facing each other can be different from the number of polarities of one surface of the second-second traction magnet.

[0021] One surface of the first-first traction magnet and one surface of the first-second traction magnet can have first and second polarities, respectively, and one surface of the second-first traction magnet and one surface of the second-second traction magnet can have the first or second polarity, respectively, and the first and second polarities can be opposite polarities.

[0022] Among the first and second polarities of one surface of the first-first traction magnet, the length of the polarity disposed closer to the second rotation axis can be equal to or longer than the length of the other polarity, among the first and second polarities of one surface of the first-second traction magnet, the length of the polarity disposed closer to the second rotation axis can be equal to or longer than the length of the other polarity, and the lengths of the first and second polarities can be lengths in the direction of the first rotation axis.

[0023] The first ball member including a plurality of balls can be disposed between the guide member and the bracket, and the plurality of balls can be spaced apart from each other in the direction of the second rotation axis.

[0024] The reflection module can further include a first driver including a first magnet disposed on the bracket and a first coil facing the first magnet, wherein the first magnet can include two magnets, and the two magnets can be disposed apart on one surface and another surface of the bracket spaced apart from each other in the direction of the first rotation axis, the first driver can be spaced apart from the first rotation axis in the direction of the second rotation axis, and the first driver can be spaced apart from the second rotation axis in the direction of the first rotation axis.

[0025] In another general aspect, a camera module includes a housing, a guide member disposed to be relatively rotatable on the housing based on a first rotation axis, a bracket disposed to be relatively rotatable on the guide member based on a second rotation axis and having a reflection member mounted therein, and a first driver including a first magnet disposed on the bracket and a first coil facing the first magnet, wherein the first magnet includes two magnets and the two magnets are disposed apart from each other on one surface and another surface of the bracket spaced apart in a direction of the first rotation axis, the first driver is spaced apart from the first rotation axis in a direction of the second rotation axis, and the first driver is spaced apart from the second rotation axis in the direction of the first rotation axis.

[0026] The camera module can further include a first lens module having a first optical axis and coupled to the bracket, wherein the first optical axis can be perpendicular to the first rotation axis and the second rotation axis.

[0027] A first traction magnet can be disposed in one of the guide member and the bracket, a second traction magnet facing the first traction magnet can be disposed in the other of the guide member and the bracket, one surface of the first traction magnet and one surface of the second traction magnet can face each other, and a number of polarities of the one surface of the first traction magnet can be different from a number of polarities of the one surface of the second traction magnet.

[0028] A first ball member including a plurality of balls can be disposed between the guide member and the bracket, and the plurality of balls of the first ball member can be spaced apart from each other in a direction of the second rotation axis, and a second ball member including a plurality of balls can be disposed between the guide member and the housing, and the plurality of balls of the second ball member can be spaced apart from each other in a direction of the first rotation axis.

[0029] A virtual line connecting the plurality of balls of the first ball member in the direction of the second rotation axis can be spaced apart from the first magnet in the direction of the first rotation axis, and a virtual line connecting the plurality of balls of the second ball member in the direction of the first rotation axis can be spaced apart from the first magnet in the direction of the second rotation axis.

[0030] Other features and aspects will be apparent from the accompanying drawings and from the detailed description which follows. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a perspective view of a camera module according to an exemplary embodiment of the present disclosure.

[0032] Figure 2 and Figure 3 is a partial cutaway perspective view of a camera module according to an exemplary embodiment of the present disclosure.

[0033] Figure 4 is an exploded perspective view of a camera module according to an exemplary embodiment of the present disclosure.

[0034] Figure 5 is an exploded perspective view of the reflection module and the housing.

[0035] Figure 6 is a bottom perspective view of a guide member of the reflection module.

[0036] Figure 7 is a partial exploded perspective view of the reflection module.

[0037] Figure 8 is a plan view of the guide member.

[0038] Figure 9 is a bottom view of the guide member.

[0039] Figure 10 is a plan view of the bracket and the reflection member.

[0040] Figure 11 is a bottom view of the bracket.

[0041] Figure 12 is a sectional view of the second traction magnet and the third traction magnet.

[0042] Figure 13A and Figure 13B is a view showing attractive force and repulsive force acting between the second traction magnet and the third traction magnet.

[0043] Figure 14 is a plan view of a guide member and a second traction magnet according to another exemplary embodiment.

[0044] Figure 15 is a bottom view of a bracket and a third traction magnet according to another exemplary embodiment.

[0045] Figure 16 is a sectional view of the second traction magnet and the third traction magnet according to another exemplary embodiment.

[0046] Figure 17 is a perspective view of a reflection module and a first lens module.

[0047] Figure 18 is a bottom perspective view of the reflection module and the first lens module.

[0048] Figure 19 is a perspective view of a first driver, a first ball member, and a second ball member according to an exemplary embodiment of the present disclosure.

[0049] Figure 20 is a plan view of a housing according to an exemplary embodiment of the present disclosure.

[0050] Figure 21is a perspective view showing a state in which the second lens module is separated from the camera module according to an exemplary embodiment of the present disclosure.

[0051] Figure 22 is a bottom perspective view of the second lens module.

[0052] Figure 23 is an exploded perspective view of a camera module according to another exemplary embodiment of the present disclosure.

[0053] Figure 24 is an exploded perspective view of the camera module viewed from a direction different from the direction of Figure 23

[0054] Figure 25 is a bottom perspective view of a reflection module according to another exemplary embodiment of the present disclosure.

[0055] Figure 26 is a perspective view of a reflection module and a first lens module according to another exemplary embodiment of the present disclosure.

[0056] Figure 27 is a perspective view of a first driver, a first ball member, a second ball member, a first traction magnet, and a second traction magnet according to another exemplary embodiment of the present disclosure.

[0057] Figure 28 is a block diagram showing a configuration of a first driver and a position sensing unit according to an exemplary embodiment of the present disclosure.

[0058] Throughout the drawings and specific embodiments, identical reference numerals direct to identical elements. The drawings can not be to scale and the dimensions, proportions, and details of the components can have been exaggerated for the sake of clarity and convenience in the drawings. DETAILED DESCRIPTION

[0059] Hereinafter, while examples of the present disclosure will be described in detail with reference to the accompanying drawings, it should be noted that the examples are not limited thereto.

[0060] The following detailed description is provided to help the reader obtain a thorough understanding of the methods, apparatuses, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and / or systems described herein will become apparent to those skilled in the art after understanding the present disclosure. For example, the order of the operations described herein is merely an example, and is not limited to the order set forth herein, except for operations that must occur in a specific order, and can be changed, which will be apparent to those skilled in the art after understanding the present disclosure. In addition, descriptions of features well known in the art can be omitted for the sake of clarity and conciseness.

[0061] ​The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, these examples are provided as illustrative of a number of possible ways to implement the methods, devices, and / or systems described herein.

[0062] Throughout this specification, where an element such as a layer, region, or substrate is described as being "on" or "connected to" another element, it can be directly on or connected to the other element, or intervening elements can be present. In contrast, where an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can be present therebetween.

[0063] As used herein, the term "and / or" includes any one of the associated listed items, as well as any combination of any two or more of the associated listed items; similarly, "at least one of' includes any one of the associated listed items, as well as any combination of any two or more of the associated listed items.

[0064] Although terminology can be used in this document, such as "first," "second," and "third," names of components, members, regions, layers, or parts, the components, members, regions, layers, or parts are not limited by the terminology. Rather, the terminology is used only for the purpose of distinguishing one component, member, region, layer, or part from another component, member, region, layer, or part. Therefore, the first component, first member, first region, first layer, or first part mentioned in the examples described herein can also be called a second component, second member, second region, second layer, or second part without departing from the teachings of the examples described herein.

[0065] Spatially relative terms such as "on", "above", "under", "below", and the like can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "on" other elements or features would then be oriented "below" or "on" the other elements or features. Thus, the term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0066] The terminology used herein is for the purpose of describing various examples only and is not intended to limit the disclosure. The expressions "a," "an," and "the" are intended to include both singular and plural, unless the context clearly indicates otherwise. The expressions "comprises," "comprising," “includes,” “including,” and “has,” “having” and the like are inclusive of the stated features, numbers, operations, members, elements and / or combinations thereof, but not excluding the presence or addition of one or more other features, numbers, operations, members, elements and / or combinations thereof.

[0067] The shapes shown in the drawings can vary due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings, but include variations in shapes that occur during manufacturing.

[0068] It should be noted that, in this document, the expression "may" used with respect to examples, for example, with respect to what an example can include or implement, means that there is at least one example in which the feature is included or implemented, and all examples are not limited thereto.

[0069] Features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure. Also, although the examples described herein have various configurations, other configurations are possible after understanding the disclosure.

[0070] One aspect of the disclosure can provide a reflection module and a camera module including the same, such that a reflection member can be disposed in its original position when no power is applied.

[0071] One aspect of the disclosure can provide a reflection module and a camera module including the same to simplify the structure of a driver for shake correction.

[0072] The disclosure relates to a reflection module and a camera module including the same, and the camera module can be mounted on a portable electronic device such as a mobile communication terminal / smartphone or a tablet PC.

[0073] Figure 1 is a perspective view of a camera module according to an exemplary embodiment of the disclosure, Figure 2 and Figure 3 is a partially cut perspective view of a camera module according to an exemplary embodiment of the disclosure, and Figure 4 is an exploded perspective view of a camera module according to an exemplary embodiment of the disclosure.

[0074] Referring to Figures 1 to 4 , a camera module 1 according to an exemplary embodiment of the disclosure includes a reflection module 300 and a housing 100.

[0075] The reflection module 300 can be disposed in the housing 100 and include a reflection member 310 having a reflection surface.

[0076] The reflection module 300 can be disposed rotatable about two different axes for shake correction. For example, the reflection module 300 can be rotatable about two axes perpendicular to each other in the housing 100.

[0077] In an exemplary embodiment, the camera module 1 can further include a first lens module 210.

[0078] The first lens module 210 includes at least one lens, and the at least one lens has a first optical axis (Y-axis). Based on Figure 4 , the first optical axis (Y-axis) can extend in a vertical direction. The first optical axis (Y-axis) can pass through a center of the at least one lens of the first lens module 210.

[0079] In an exemplary embodiment, the first lens module 210 includes a first lens barrel 211 and a first lens holder 212. The at least one lens can be disposed in the first lens barrel 211, and the first lens barrel 211 can be coupled to the first lens holder 212. The first lens holder 212 can be coupled to the reflection module 300. Alternatively, the first lens module 210 can include only the first lens barrel 211 without the first lens holder 212, and the first lens barrel 211 can be coupled to the reflection module 300.

[0080] The first lens module 210 can be disposed in front of the reflection module 300. Here, "front" can refer to a direction of a positive first optical axis (Y-axis) (+Y-axis direction) based on the reflection module 300. For example, the first lens module 210 can be disposed above the reflection module 300 in the first optical axis (Y-axis) direction.

[0081] The first lens module 210 can be coupled to the reflection module 300. For example, the first lens holder 212 of the first lens module 210 can be coupled to the holder 330 of the reflection module 300.

[0082] The first lens module 210 and the reflection module 300 are disposed in the housing 100.

[0083] In an exemplary embodiment, the camera module 1 can further include a second lens module 220. The reflection module 300 is disposed between the first lens module 210 and the second lens module 220. The second lens module 220 includes a plurality of lenses and has a second optical axis (Z-axis). The plurality of lenses are disposed along the second optical axis (Z-axis). The second optical axis (Z-axis) can pass through a center of the plurality of lenses of the second lens module 220.

[0084] The first optical axis (Y-axis) of the first lens module 210 and the second optical axis (Z-axis) of the second lens module 220 can be formed perpendicular to each other.

[0085] The first lens module 210 includes one or more lenses, and the second lens module 220 includes a plurality of lenses.

[0086] The one or more lenses of the first lens module 210 can be circular when viewed in the direction of the first optical axis (Y-axis). At least one lens of the plurality of lenses of the second lens module 220 can be non-circular when viewed in the direction of the second optical axis (Z-axis). For example, the non-circular lens can have different lengths in two directions perpendicular to the direction of the second optical axis (Z-axis) and perpendicular to each other. In an exemplary embodiment, in the non-circular lens, the length of the non-circular lens in the direction of the first axis (X-axis) perpendicular to both the direction of the first optical axis (Y-axis) and the direction of the second optical axis (Z-axis) is longer than the length thereof in the direction of the first optical axis (Y-axis).

[0087] The first lens module 210 and the reflection module 300 can be configured to rotate together for shake correction. The second lens module 220 can move in the direction of the second optical axis (Z-axis) for focus adjustment.

[0088] The camera module 1 can further include an image sensor module 800.

[0089] The image sensor module 800 includes a sensor housing, an image sensor, and a printed circuit board, and can further include an infrared cut filter.

[0090] The infrared cut filter (infrared blocking filter) can be mounted on the sensor housing. The infrared blocking filter serves to block light in an infrared region among light passing through the second lens module 220 from reaching the image sensor.

[0091] The printed circuit board is coupled with the sensor housing, and the image sensor is disposed on the printed circuit board.

[0092] Light passing through the second lens module 220 is received by the image sensor module 800 (e.g., the image sensor).

[0093] The camera module 1 can further include a housing 110. The housing 110 is coupled with the housing 100 so as to cover an upper portion of the housing 100. The housing 110 can include an opening, and the first lens module 210 can be disposed in the opening.

[0094] Meanwhile, at least a portion of the first lens module 210 can be disposed to protrude to the outside of the housing 100 and the housing 110.

[0095] Figure 5 is an exploded perspective view of the reflection module and the housing,Figure 6 is a plan view of the guide member, and Figure 7 is a partially exploded perspective view of the reflection module.

[0096] In addition, Figure 8 is a plan view of the guide member, and Figure 9 is a bottom view of the guide member.

[0097] In addition, Figure 10 is a plan view of the bracket and the reflection member, and Figure 11 is a bottom view of the bracket.

[0098] Referring to Figures 5 to 11 , the reflection module 300 includes a reflection member 310, a bracket 330, and a guide member 320.

[0099] The reflection member 310 has a reflection surface that reflects light passing through the first lens module 210. For example, the reflection member 310 can be a prism or a mirror.

[0100] When the reflection member 310 is a prism, the reflection member 310 can be any shape obtained by halving a cuboid (or a cube) in a diagonal direction. The prism includes an incident surface on which light is incident, a reflection surface that reflects light passing through the incident surface, and an exit surface from which light reflected from the reflection surface is emitted.

[0101] The reflection member 310 is mounted on the bracket 330. The first lens module 210 can be disposed in front of the reflection member 310. In an exemplary embodiment, the first lens module 210 can be mounted on the bracket 330.

[0102] The bracket 330 is rotatably disposed on the guide member 320. In addition, the guide member 320 is rotatably disposed on the housing 100.

[0103] The guide member 320 can rotate about a first axis (X axis) that is perpendicular to both the first optical axis (Y axis) and the second optical axis (Z axis) as a rotation axis. For example, the guide member 320 can relatively rotate on the housing 100 about the first axis (X axis) as a rotation axis. In this case, the first lens module 210 and the bracket 330 can also rotate together with the guide member 320. Meanwhile, the first axis (X axis) can also be referred to as a first rotation axis.

[0104] The bracket 330 can rotate about the second optical axis (Z axis) that is perpendicular to the first axis (X axis) as a rotation axis. For example, the bracket 330 can relatively rotate on the guide member 320 about the second optical axis (Z axis) as a rotation axis. In this case, the first lens module 210 can rotate together with the bracket 330. Meanwhile, the second optical axis (Z axis) can also be referred to as a second rotation axis.

[0105] The first driver 400 can be provided to rotate the reflection module 300. The first driver 400 includes a first magnet 410 and a first coil 420. The guide member 320 can be relatively rotated on the housing 100 based on the first axis (X axis) by the first driver 400. Since the bracket 330 and the first lens module 210 are disposed on the guide member 320, the bracket 330 and the first lens module 210 can also rotate together with the guide member 320.

[0106] The first magnet 410 can be mounted on the bracket 330. For example, the first magnet 410 can be mounted on a side surface of the bracket 330. The side surface of the bracket 330 can refer to one surface of the bracket 330 that faces the housing 100 in the first axis (X axis) direction.

[0107] The first magnet 410 can be magnetized such that one surface (for example, a surface facing the first coil 420) has both N and S poles. In an exemplary embodiment, the surface of the first magnet 410 facing the first coil 420 can be sequentially provided with an N pole, a neutral region, and an S pole in the first optical axis (Y axis) direction.

[0108] The first coil 420 can be disposed to face the first magnet 410. In an exemplary embodiment, the first coil 420 can be disposed to face the first magnet 410 in the first axis (X axis) direction.

[0109] The first coil 420 is disposed on the substrate 900, and the substrate 900 is mounted on the housing 100 such that the first magnet 410 and the first coil 420 face each other in the first axis (X axis) direction.

[0110] The housing 100 is provided with a through-hole passing through the housing 100 in the first axis (X axis) direction, and the first coil 420 is disposed in the through-hole to directly face the first magnet 410.

[0111] When performing shake correction, the first magnet 410 is a movable member mounted on the bracket 330 and rotated, and the first coil 420 is a fixed member fixed to the substrate 900.

[0112] When power is applied to the first driver 400, the first driver 400 can generate a driving force required to rotate the bracket 330 and the guide member 320 with the first axis (X axis) as a rotation axis. For example, the first driver 400 can generate a driving force in the first optical axis (Y axis) direction.

[0113] The first magnet 410 can include a plurality of magnets. In an exemplary embodiment, the first magnet 410 can include two magnets spaced apart from each other. The two magnets of the first magnet 410 can be spaced apart from each other in the first axis (X axis) direction.

[0114] One of the two magnets of the first magnet 410 can be disposed on one side surface of the bracket 330, and the other of the two magnets of the first magnet 410 can be disposed on the other side surface of the bracket 330. The one side surface of the bracket 330 and the other side surface of the bracket 330 can be spaced apart from each other in the first axis (X-axis) direction.

[0115] The first coil 420 can include a plurality of coils. In an exemplary embodiment, the first coil 420 can include two coils spaced apart from each other. The two coils of the first coil 420 can be spaced apart from each other in the first axis (X-axis) direction.

[0116] In an exemplary embodiment, one pair of magnets and coils can be disposed on one side of the reflection module 300, and another pair of magnets and coils can be disposed on the other side of the reflection module 300.

[0117] When the guide member 320 and the bracket 330 rotate about the first axis (X-axis) as a rotation axis, the direction of the driving force of one pair of magnets and coils and the direction of the driving force of another pair of magnets and coils can be the same.

[0118] For example, when the direction of the driving force of one pair of magnets and coils is the positive first optical axis (Y-axis) direction (+Y-axis direction) and the direction of the driving force of another pair of magnets and coils is also the positive first optical axis (Y-axis) direction (+Y-axis direction), the guide member 320 and the bracket 330 can rotate together based on the first axis (X-axis).

[0119] In addition, when the direction of the driving force of one pair of magnets and coils is the negative first optical axis (Y-axis) direction (-Y-axis direction) and the direction of the driving force of another pair of magnets and coils is also the negative first optical axis (Y-axis) direction (-Y-axis direction), the guide member 320 and the bracket 330 can rotate together based on the first axis (X-axis).

[0120] The first ball member B1 can be disposed between the guide member 320 and the housing 100. The first ball member B1 can be disposed between the guide member 320 and the housing 100 to form a rotation axis of the guide member 320.

[0121] The first ball member B1 includes a plurality of balls spaced apart from each other in the first axis (X-axis) direction. A virtual line connecting the plurality of balls of the first ball member B1 in the first axis (X-axis) direction can be spaced apart from the first magnet 410 in the second optical axis (Z-axis) direction (see Figure 19 ).

[0122] In an exemplary embodiment, the first magnet 410 and the first coil 420 can be spaced apart from the first ball member B1 in the second optical axis (Z-axis) direction. When a driving force is generated in the first optical axis (Y-axis) direction by the first magnet 410 and the first coil 420, the guide member 320 can rotate based on the rotation axis formed by the first ball member B1. Since the bracket 330 is disposed on the guide member 320, the bracket 330 and the guide member 320 can rotate together based on the first axis (X-axis) by the first driver 400.

[0123] A virtual line connecting the plurality of balls of the first ball member B1 in the first axis (X-axis) direction can pass through the reflection surface of the reflection member 310.

[0124] In an exemplary embodiment, a line extending the first optical axis (Y-axis) of the first lens module 210 can be disposed between both ends of the plurality of balls of the first ball member B1 when viewed in the first axis (X-axis) direction. Here, both ends of the plurality of balls of the first ball member B1 can refer to both ends in the second optical axis (Z-axis) direction.

[0125] An attractive force can be applied between the guide member 320 and the housing 100. For example, the first traction magnet 510 can be disposed on one of the guide member 320 and the housing 100, and the first traction yoke 511 can be disposed on the other of the guide member 320 and the housing 100.

[0126] In an exemplary embodiment, the first traction magnet 510 can be disposed on a lower surface of the guide member 320, and the first traction yoke 511 can be disposed on a bottom surface of the housing 100.

[0127] The first traction magnet 510 and the first traction yoke 511 can face each other in the first optical axis (Y-axis) direction.

[0128] The first traction magnet 510 and the first traction yoke 511 can generate an attractive force therebetween. For example, the first traction yoke 511 can be formed of a magnetic material. The attractive force can be applied between the first traction magnet 510 and the first traction yoke 511 in the first optical axis (Y-axis) direction.

[0129] The first ball member B1 can maintain contact with the guide member 320 and the housing 100, respectively, by the attractive force between the first traction magnet 510 and the first traction yoke 511.

[0130] The first guide groove g1 and the second guide groove g2 can be disposed on surfaces of the guide member 320 and the housing 100 facing each other (e.g., surfaces facing each other in the first optical axis (Y-axis) direction). For example, the first guide groove g1 can be disposed on the housing 100, and the second guide groove g2 can be disposed on the guide member 320. The first guide groove g1 and the second guide groove g2 can face each other in the first optical axis (Y-axis) direction.

[0131] The first guide groove g1 includes a plurality of grooves spaced apart from each other in the first axis (X-axis) direction, and the second guide groove g2 includes a plurality of grooves spaced apart from each other in the first axis (X-axis) direction.

[0132] The first ball member B1 can be disposed between the first guide groove g1 and the second guide groove g2 to form a rotation axis of the guide member 320.

[0133] One of the plurality of grooves of the first guide groove g1 can make three-point contact with the first ball member B1, and another of the plurality of grooves of the first guide groove g1 can make two-point contact with the first ball member B1. For example, referring to Figure 5 , a groove disposed on the left among the plurality of grooves of the first guide groove g1 can make three-point contact with the first ball member B1, and a groove disposed on the right among the plurality of grooves of the first guide groove g1 can make two-point contact with the first ball member B1.

[0134] In addition, each of the plurality of grooves of the second guide groove g2 can make three-point contact with the first ball member B1. The shape of the first guide groove g1 and the shape of the second guide groove g2 can be opposite to each other.

[0135] The first driver 400 can rotate the bracket 330 based on the second optical axis (Z-axis). That is, the bracket 330 can be rotated by the first driver 400 based on the second optical axis (Z-axis). Since the first lens module 210 is disposed on the bracket 330, the first lens module 210 can also be rotated together with the bracket 330.

[0136] When power is applied to the first driver 400, the first driver 400 can generate a driving force required to rotate the bracket 330 with the second optical axis (Z-axis) as a rotation axis. For example, the first driver 400 can generate a driving force in the first optical axis (Y-axis) direction.

[0137] In an exemplary embodiment, when the bracket 330 rotates around the second optical axis (Z-axis) as a rotation axis, the direction of the driving force of one pair of magnets and coils and the direction of the driving force of the other pair of magnets and coils can be opposite to each other.

[0138] For example, when the direction of the driving force of one pair of magnets and coils is the positive first optical axis (Y-axis) direction (+Y-axis direction) and the direction of the driving force of the other pair of magnets and coils is the negative first optical axis (Y-axis) direction (-Y-axis direction), the bracket 330 can rotate based on the second optical axis (Z-axis).

[0139] In addition, when the direction of the driving force of one pair of magnets and coils is the negative first optical axis (Y-axis) direction (-Y-axis direction) and the direction of the driving force of the other pair of magnets and coils is the positive first optical axis (Y-axis) direction (+Y-axis direction), the bracket 330 can rotate based on the second optical axis (Z-axis).

[0140] In addition, the bracket 330 can also rotate in a diagonal direction. For example, the guide member 320 and the bracket 330 can rotate based on the first axis (X-axis), and the bracket 330 can rotate based on the second optical axis (Z-axis), thereby rotating the bracket 330 in a diagonal direction.

[0141] In an exemplary embodiment, the driving force can be generated only from one pair of magnets and coils, and the driving force can not be generated from the other pair of magnets and coils, so that the bracket 330 can rotate in a diagonal direction. Alternatively, the magnitude (and / or direction) of the driving force of one pair of magnets and coils can be generated differently from the magnitude (and / or direction) of the driving force of the other pair of magnets and coils, so that the bracket 330 can rotate in a diagonal direction.

[0142] The second ball member B2 can be disposed between the bracket 330 and the guide member 320. The second ball member B2 can be disposed between the bracket 330 and the guide member 320 to form a rotation axis of the bracket 330.

[0143] The second ball member B2 includes a plurality of balls spaced apart from each other in the second optical axis (Z-axis) direction. A virtual line connecting the plurality of balls of the second ball member B2 in the second optical axis (Z-axis) direction can be spaced apart from the first magnet 410 in the first axis (X-axis) direction (see Figure 19 ).

[0144] In an exemplary embodiment, the first magnet 410 and the first coil 420 can be spaced apart from the second ball member B2 in the first axis (X-axis) direction. When the driving force in the first optical axis (Y-axis) direction is generated by the first magnet 410 and the first coil 420, the bracket 330 can rotate based on the rotation axis formed by the second ball member B2.

[0145] The virtual line connecting the plurality of balls of the second ball member B2 in the second optical axis (Z-axis) direction can pass through the reflection surface of the reflection member 310.

[0146] In an exemplary embodiment, a line extending the second optical axis (Z axis) of the second lens module 220 can be disposed between both ends of the plurality of balls of the second ball member B2 when viewed in the direction of the first axis (X axis). Here, both ends of the plurality of balls of the second ball member B2 can refer to both ends in the direction of the first optical axis (Y axis).

[0147] The third guide groove g3 and the fourth guide groove g4 can be disposed on surfaces of the guide member 320 and the bracket 330 facing each other (for example, surfaces facing each other in the direction of the first optical axis (Y axis)). For example, the third guide groove g3 can be disposed in the guide member 320, and the fourth guide groove g4 can be disposed in the bracket 330. The third guide groove g3 and the fourth guide groove g4 can face each other in the direction of the first optical axis (Y axis).

[0148] The third guide groove g3 includes a plurality of grooves spaced apart from each other in the direction of the second optical axis (Z axis), and the fourth guide groove g4 includes a plurality of grooves spaced apart from each other in the direction of the second optical axis (Z axis).

[0149] The second ball member B2 can be disposed between the third guide groove g3 and the fourth guide groove g4 to form a rotation axis of the bracket 330.

[0150] One of the plurality of grooves of the fourth guide groove g4 can make three-point contact with the second ball member B2, and another of the plurality of grooves of the fourth guide groove g4 can make two-point contact with the second ball member B2. For example, referring to Figure 11 , a groove disposed in the upper portion among the plurality of grooves of the fourth guide groove g4 can make three-point contact with the second ball member B2, and a groove disposed in the lower portion among the plurality of grooves of the fourth guide groove g4 can make two-point contact with the second ball member B2.

[0151] In addition, the plurality of grooves of the third guide groove g3 can make three-point contact with the second ball member B2. The shape of the third guide groove g3 and the shape of the fourth guide groove g4 can also be disposed opposite each other.

[0152] An attractive force can be applied between the bracket 330 and the guide member 320. For example, the second traction magnet 520 can be disposed on one of the bracket 330 and the guide member 320, and the third traction magnet 530 can be disposed on the other of the bracket 330 and the guide member 320.

[0153] In an exemplary embodiment, the second traction magnet 520 can be disposed on the guide member 320, and the third traction magnet 530 can be disposed on the bracket 330.

[0154] The second traction magnet 520 and the third traction magnet 530 can face each other in the direction of the first optical axis (Y axis).

[0155] In an exemplary embodiment, the second traction magnet 520 can be disposed on an upper surface of the guide member 320, and the third traction magnet 530 can be disposed on a lower surface of the bracket 330.

[0156] The second traction magnet 520 can be disposed between a plurality of grooves of the third guide groove g3. Also, the third traction magnet 530 can be disposed between a plurality of grooves of the fourth guide groove g4.

[0157] Figure 12 is a cross-sectional view of the second traction magnet and the third traction magnet, and Figure 13A and Figure 13B is a view illustrating an attractive force and a repulsive force acting between the second traction magnet and the third traction magnet.

[0158] Both an attractive force and a repulsive force can be generated between the second traction magnet 520 and the third traction magnet 530. Also, the magnitude of the attractive force between the second traction magnet 520 and the third traction magnet 530 can be greater than the magnitude of the repulsive force between the second traction magnet 520 and the third traction magnet 530.

[0159] Accordingly, the second ball member B2 can be maintained in contact with the bracket 330 and the guide member 320 by the attractive force between the second traction magnet 520 and the third traction magnet 530.

[0160] The length d4 of the third traction magnet 530 in the first axis (X-axis) direction can be equal to or longer than the length d5 of the second traction magnet 520 in the first axis (X-axis) direction.

[0161] When the bracket 330 rotates with the second optical axis (Z-axis) as a rotation axis, the third traction magnet 530 coupled to the bracket 330 is a movable member, and the second traction magnet 520 coupled to the guide member 320 is a fixed member.

[0162] Accordingly, the length of the traction magnet (the third traction magnet 530 in this exemplary embodiment) as the movable member in the first axis (X-axis) direction can be equal to or longer than the length of the traction magnet (the second traction magnet 520 in this exemplary embodiment) as the fixed member in the first axis (X-axis) direction.

[0163] Both an attractive force and a repulsive force can be generated between the second traction magnet 520 and the third traction magnet 530. Here, the region in which the attractive force is generated is a central region in a portion in which the second traction magnet 520 and the third traction magnet 530 face each other, and the region in which the repulsive force is generated can be an outer region in the portion in which the second traction magnet 520 and the third traction magnet 530 face each other.

[0164] The number of polarities on one surface of the second traction magnet 520 and the number of polarities on one surface of the third traction magnet 530 can be different from each other.

[0165] In an exemplary embodiment, one surface of the second traction magnet 520 (e.g., a surface facing the third traction magnet 530) can be configured to have one polarity.

[0166] For example, one surface of the second traction magnet 520 can have a first polarity 521, and the other surface (e.g., the opposite surface of one surface) of the second traction magnet 520 can have a second polarity 522. The first polarity 521 can be an N-pole or an S-pole, and the second polarity 522 can be a polarity opposite to the first polarity 521.

[0167] One surface of the third traction magnet 530 (e.g., a surface facing the second traction magnet 520) can be configured to have a plurality of polarities. That is, one surface of the third traction magnet 530 can have a plurality of polarities including opposite polarities formed therein.

[0168] For example, one surface of the third traction magnet 530 can have two first polarities 531 spaced apart from each other in the first axis (X-axis) direction, and a second polarity 532 disposed between the two first polarities 531. A boundary region can be disposed between the first polarity 531 and the second polarity 532. The boundary region can be a neutral region. The neutral region can extend in a direction parallel to the second optical axis (Z-axis).

[0169] The other surface (e.g., the opposite surface of one surface) of the third traction magnet 530 can have a polarity opposite to the polarity of one surface of the third traction magnet 530.

[0170] On one surface of the third traction magnet 530, the length d2 of the second polarity 532 in the first axis (X-axis) direction can be equal to or longer than the sum (d1+d3) of the lengths of the two first polarities 531 in the first axis (X-axis) direction.

[0171] On one surface of the second traction magnet 520 and one surface of the third traction magnet 530, the area in which the opposite polarities face each other can be greater than the area in which the same polarities face each other.

[0172] Meanwhile, the length or area of the first polarity 531 and the second polarity 532 can be measured by applying the liquid iron to the surface of the third traction magnet 530. For example, since the neutral region is disposed between the first polarity 531 and the second polarity 532, the liquid iron does not adhere to the neutral region but only adheres to the portions having the first polarity 531 and the second polarity 532. Accordingly, the length or area of the first polarity 531 and the second polarity 532 can be measured by the region to which the liquid iron adheres.

[0173] At least a portion of the two first polarities 531 on one surface of the third traction magnet 530 can face the first polarity 521 on one surface of the second traction magnet 520.

[0174] The second polarity 532 on one surface of the third traction magnet 530 can face the first polarity 521 on one surface of the second traction magnet 520.

[0175] Accordingly, an attractive force is generated between the second polarity 532 on one surface of the third traction magnet 530 and the first polarity 521 on one surface of the second traction magnet 520. In addition, a repulsive force is generated between the two first polarities 531 on one surface of the third traction magnet 530 and the first polarity 521 on one surface of the second traction magnet 520.

[0176] The magnitude of the attractive force between the second traction magnet 520 and the third traction magnet 530 can be greater than the magnitude of the repulsive force between the second traction magnet 520 and the third traction magnet 530.

[0177] In the reflective module 300 according to the exemplary embodiment of the disclosure, not only an attractive force but also a repulsive force is generated between the second traction magnet 520 and the third traction magnet 530.

[0178] When the distance between one side of the second traction magnet 520 and one side of the third traction magnet 530 becomes relatively close due to the rotation of the bracket 330, the repulsive force between one side of the second traction magnet 520 and one side of the third traction magnet 530 becomes stronger, so that the bracket 330 can return to the initial position when no power is applied to the reflective module 300.

[0179] Here, the initial position can refer to a state in which the bracket 330 is not rotated, for example, a state in which the second traction magnet 520 and the third traction magnet 530 are parallel to each other. For example, the initial position can refer to a state in which one surface of the second traction magnet 520 and one surface of the third traction magnet 530 are substantially parallel to each other.

[0180] That is, the reflection module 300 according to an exemplary embodiment of the disclosure can reduce power consumption for setting a position of the bracket 330 by mechanically implementing a centering structure of the bracket 330.

[0181] Therefore, when the dithering compensation is not needed (for example, when the reflection module 300 is not powered, etc.), the position of the bracket 330 can be adjusted without separate power consumption.

[0182] Meanwhile, the generation structure of the attractive force and the repulsive force between the bracket 330 and the guide member 320 can also be applied between the guide member 320 and the housing 100.

[0183] For example, the first traction magnet 510 and the first traction yoke 511 can be replaced with the second traction magnet 520 and the third traction magnet 530.

[0184] Figure 14 is a plan view of a guide member and a second traction magnet according to another exemplary embodiment, and Figure 15 is a bottom view of a bracket and a third traction magnet according to another exemplary embodiment. Also, Figure 16 is a cross-sectional view of a second traction magnet and a third traction magnet according to another exemplary embodiment.

[0185] Referring to Figures 14 to 16 , the second traction magnet 520 can include a plurality of magnets spaced apart from each other in the first axis (X-axis) direction. In an exemplary embodiment, the second traction magnet 520 includes a second-first traction magnet 520a and a second-second traction magnet 520b. The second-first traction magnet 520a and the second-second traction magnet 520b can be spaced apart from each other in the first axis (X-axis) direction.

[0186] Also, the second-first traction magnet 520a and the second-second traction magnet 520b can be configured such that their respective surfaces have a plurality of polarities.

[0187] For example, one surface of the second-first traction magnet 520a can be configured to have a first polarity 521a, a neutral region, and a second polarity 522a in the first axis (X-axis) direction.

[0188] On one surface of the second-first traction magnet 520a, the length of the first polarity 521a in the first axis (X-axis) direction and the length of the second polarity 522a in the first axis (X-axis) direction can be different from each other. For example, the length formed closer to the polarity of the second ball member B2 in the first axis (X-axis) direction can be formed to be longer.

[0189] Another surface of the second-first traction magnet 520a can have a polarity opposite to that of one surface of the second-first traction magnet 520a.

[0190] One surface of the second-second traction magnet 520b can be configured to have a first polarity 521b, a neutral region, and a second polarity 522b in the first axis (X-axis) direction.

[0191] On one surface of the second-second traction magnet 520b, the length of the first polarity 521b in the first axis (X-axis) direction and the length of the second polarity 522b in the first axis (X-axis) direction can be different from each other. For example, the length of the polarity formed closer to the second ball member B2 (or the second optical axis (Z-axis)) in the first axis (X-axis) direction can be formed to be longer.

[0192] Another surface of the second-second traction magnet 520b can have a polarity opposite to that of one surface of the second-second traction magnet 520b.

[0193] The second-first traction magnet 520a and the second-second traction magnet 520b can be configured such that the portions facing each other in the first axis (X-axis) direction have the same polarity.

[0194] The sum (d21+d22) of the length d22 of the first polarity 521a on one surface of the second-first traction magnet 520a in the first axis (X-axis) direction and the length d21 of the first polarity 521b on one surface of the second-second traction magnet 520b in the first axis (X-axis) direction can be equal to or longer than the sum (d11+d31) of the length d31 of the second polarity 522a on one surface of the second-first traction magnet 520a in the first axis (X-axis) direction and the length d11 of the second polarity 522b on one surface of the second-second traction magnet 520b in the first axis (X-axis) direction.

[0195] The third traction magnet 530 can include a plurality of magnets spaced apart from each other in the first axis (X-axis) direction. In an exemplary embodiment, the third traction magnet 530 includes a third-first traction magnet 530a and a third-second traction magnet 530b. The third-first traction magnet 530a and the third-second traction magnet 530b can be spaced apart from each other in the first axis (X-axis) direction.

[0196] The second-first traction magnet 520a and the third-first traction magnet 530a can face each other in the first optical axis (Y-axis) direction, and the second-second traction magnet 520b and the third-second traction magnet 530b can face each other in the first optical axis (Y-axis) direction.

[0197] In addition, the third-first traction magnet 530a and the third-second traction magnet 530b can be configured such that their respective surfaces have one polarity.

[0198] That is, the number of polarities on one surface of the second-first traction magnet 520a facing each other and the number of polarities on one surface of the third-first traction magnet 530a can be differently configured. In addition, the number of polarities on one surface of the second-second traction magnet 520b facing each other and the number of polarities on one surface of the third-second traction magnet 530b can be differently configured.

[0199] For example, one surface of the third-first traction magnet 530a and one surface of the third-second traction magnet 530b can be configured to have a first polarity or a second polarity, respectively. In addition, the polarity of one surface of the third-first traction magnet 530a and the polarity of one surface of the third-second traction magnet 530b can be the same.

[0200] In an exemplary embodiment, the polarity of one surface of the third-first traction magnet 530a can be a polarity opposite to a polarity of one surface of the second-first traction magnet 520a disposed closer to the second ball member B2 (or the second optical axis (Z axis)). For example, when the first polarity 521a on one surface of the second-first traction magnet 520a is disposed closer to the second ball member B2 than the second polarity 522a, one surface of the third-first traction magnet 530a can have the second polarity 532a, and the other surface of the third-first traction magnet 530a can have the first polarity 531a.

[0201] In addition, the polarity of one surface of the third-second traction magnet 530b can be a polarity opposite to a polarity of one surface of the second-second traction magnet 520b disposed closer to the second ball member B2. For example, when the first polarity 521b on one surface of the second-second traction magnet 520b is disposed closer to the second ball member B2 than the second polarity 522b, one surface of the third-second traction magnet 530b can have the second polarity 532b, and the other surface of the third-second traction magnet 530b can have the first polarity 531b.

[0202] In an exemplary embodiment, the second traction magnet 520 and the third traction magnet 530 can be configured such that both attractive force and repulsive force are generated therebetween. For example, in one surface of the second-first traction magnet 520a and one surface of the third-first traction magnet 530a, attractive force can be generated in a region relatively close to the second ball member B2, and repulsive force can be generated in a region relatively far from the second ball member B2.

[0203] In an exemplary embodiment, the sum (d51+d52) of the length d52 of the third-first traction magnet 530a in the first axis (X-axis) direction and the length d51 of the third-second traction magnet 530b in the first axis (X-axis) direction can be equal to or longer than the sum (d41+d42) of the length d42 of the second-first traction magnet 520a in the first axis (X-axis) direction and the length d41 of the second-second traction magnet 520b in the first axis (X-axis) direction.

[0204] Figure 17 is a perspective view of the reflection module and the first lens module, and Figure 18 is a bottom perspective view of the reflection module and the first lens module.

[0205] In an exemplary embodiment, the camera module 1 can sense the positions of the guide member 320 and the bracket 330. To this end, the position sensing unit 600 is provided. The position sensing unit 600 includes a sensing magnet 610 and a first position sensor 620.

[0206] The sensing magnet 610 can be provided in the bracket 330. For example, the sensing magnet 610 can be provided on the rear surface of the bracket 330. One surface (for example, a surface facing the first position sensor 620) of the sensing magnet 610 can be magnetized to have an N pole, a neutral region, and an S pole in the first optical axis (Y-axis) direction.

[0207] The first position sensor 620 can be provided at a position facing the sensing magnet 610 (for example, a position at which the first position sensor 620 and the sensing magnet 610 face each other in the second optical axis (Z-axis) direction). The first position sensor 620 can be provided on the substrate 900.

[0208] In an initial position, the neutral region of the sensing magnet 610 can face the first position sensor 620. Here, the initial position can refer to a state in which the bracket 330 and the guide member 320 are not rotated, for example, a state in which the second traction magnet 520 and the third traction magnet 530 are parallel to the bottom surface of the housing 100.

[0209] When the guide member 320 and the bracket 330 are rotated about the first axis (X-axis) as a rotation axis, the distance between the sensing magnet 610 and the first position sensor 620 in the second optical axis (Z-axis) direction changes, and thus the position of the guide member 320 can be sensed.

[0210] When the bracket 330 is rotated about the second optical axis (Z-axis) as a rotation axis, the polarity area of one surface of the sensing magnet 610 facing the first position sensor 620 changes, and thus the position of the bracket 330 can be sensed.

[0211] The first position sensor 620 can be a Hall sensor.

[0212] Meanwhile, the sensing magnets 610 can include a plurality of magnets spaced apart from each other in the first axis (X-axis) direction, and the first position sensor 620 can include a plurality of Hall sensors spaced apart from each other in the first axis (X-axis) direction.

[0213] When the sensing magnets 610 and the first position sensor 620 are provided as a plurality, the accuracy of position sensing can be improved.

[0214] In an exemplary embodiment, the plurality of sensing magnets 610 can be spaced apart from each other. For example, the plurality of sensing magnets 610 can be spaced apart from each other in the first axis (X-axis) direction.

[0215] In addition, a virtual line connecting the plurality of balls of the second ball member B2 to each other can be disposed between the plurality of sensing magnets 610. The distance from the virtual line connecting the plurality of balls of the second ball member B2 to each other to each sensing magnet 610 can be the same.

[0216] One surface (for example, a surface facing the first position sensor 620) of each sensing magnet 610 can sequentially have an S pole, a neutral region, and an N pole in the positive first optical axis (Y-axis) direction (+Y-axis direction). That is, the pole form of the plurality of sensing magnets 610 can be the same.

[0217] Hereinafter, a sensing method of the position sensing unit 600 when the pole form of the plurality of sensing magnets 610 is the same will be described.

[0218] When the guide member 320 rotates around the first axis (X-axis) as a rotation axis, the plurality of first position sensors 620 all move away from the same polarity or become close to the same polarity. For example, by the rotation of the guide member 320, the plurality of first position sensors 620 can all move away from the N pole and become close to the S pole, or the plurality of first position sensors 620 can all move away from the S pole and become close to the N pole. Accordingly, the signal values output from the plurality of first position sensors 620 have the same form.

[0219] When the guide member 320 rotates around the first axis (X-axis) as a rotation axis, the position of the guide member 320 can be accurately sensed by summing the signal values output from the plurality of first position sensors 620.

[0220] In a case where the bracket 330 rotates around the second optical axis (Z axis) as a rotation axis, when one of the plurality of first position sensors 620 becomes close to the N pole and moves away from the S pole, another of the plurality of first position sensors 620 can become close to the S pole and move away from the N pole. Accordingly, a signal value output from one of the plurality of first position sensors 620 and a signal value output from another of the plurality of first position sensors 620 can have different forms.

[0221] For example, when the signal value output from one of the plurality of first position sensors 620 is in the form of an upper right straight line, the signal value output from another of the plurality of first position sensors 620 can be in the form of a lower right straight line. That is, the graph of the signal values output from the plurality of first position sensors 620 can be in the form of X.

[0222] When the bracket 330 rotates around the second optical axis (Z axis) as a rotation axis, the position of the bracket 330 can be accurately sensed by calculating the difference between the signal values output from the plurality of first position sensors 620.

[0223] In an exemplary embodiment, one surface of one of the plurality of sensing magnets 610 can sequentially have the S pole, the neutral region, and the N pole in the positive first optical axis direction (+Y axis direction). In addition, one surface of another of the plurality of sensing magnets 610 can sequentially have the N pole, the neutral region, and the S pole in the positive first optical axis direction (+Y axis direction).

[0224] Hereinafter, a sensing method of the position sensing unit 600 when the pole form of the plurality of sensing magnets 610 is different from each other will be described.

[0225] In a case where the guide member 320 rotates around the first axis (X axis) as a rotation axis, when one of the plurality of first position sensors 620 becomes close to the N pole and moves away from the S pole, another of the plurality of first position sensors 620 can become close to the S pole and move away from the N pole. Accordingly, a signal value output from one of the plurality of first position sensors 620 and a signal value output from another of the plurality of first position sensors 620 can have different forms.

[0226] For example, when the signal value output from one of the plurality of first position sensors 620 is in the form of an upper right straight line, the signal value output from another of the plurality of first position sensors 620 can be in the form of a lower right straight line. That is, the graph of the signal values output from the plurality of first position sensors 620 can be in the form of X.

[0227] When the guide member 320 rotates around the first axis (X axis) as a rotation axis, the position of the guide member 320 can be accurately sensed by calculating the difference between the signal values output from the plurality of first position sensors 620.

[0228] When the bracket 330 rotates around the second optical axis (Z axis) as a rotation axis, the plurality of first position sensors 620 all move away from the same polarity or become close to the same polarity. For example, through rotation of the bracket 330, the plurality of first position sensors 620 can all move away from the N pole and become close to the S pole, or the plurality of first position sensors 620 can all move away from the S pole and become close to the N pole. Accordingly, the signal values output from the plurality of first position sensors 620 have the same form.

[0229] When the bracket 330 rotates around the second optical axis (Z axis) as a rotation axis, the position of the bracket 330 can be accurately sensed by summing the signal values output from the plurality of first position sensors 620.

[0230] The position sensing unit 600 can further include a controller. The controller can be a driver IC. In an exemplary embodiment, the driver IC and the first position sensor 620 can be provided in the form of a single chip.

[0231] The position sensing unit 600 can control feedback of the signal values output from the plurality of first position sensors 620, and can apply power having an appropriate direction and size to the first coil 420 so that the bracket 330 and the guide member 320 can be disposed at a target position.

[0232] Referring to Figure 28 , the reflection module 300 can further include a gyroscope. The gyroscope can be a sensor for sensing an attitude value of the bracket 330. Alternatively, when the reflection module 300 does not include a gyroscope, a gyroscope mounted on the portable electronic device can be used. That is, since the reflection module 300 is mounted on the portable electronic device, the output value of the gyroscope mounted on the portable electronic device can be used.

[0233] The shake correction value can be calculated through the attitude value output from the gyroscope (target OIS A or target OIS B), and when the shake correction value is input to the controller, a current can be applied to at least one of the plurality of first coils 420 by the controller. Accordingly, the bracket 330 can rotate.

[0234] In Figure 28 , A can refer to one of rotation based on the first axis (X axis) and rotation based on the second optical axis (Z axis). Accordingly, when A refers to rotation based on the first axis (X axis), B can refer to rotation based on the second optical axis (Z axis).

[0235] For example, in Figure 28In this case, the target OIS A can be a target position of the bracket 330 based on the first axis (X axis) rotation. The target OIS B can be a target position of the bracket 330 based on the second optical axis (Z axis) rotation. The driving force A can refer to a driving force for rotating the bracket 330 based on the first axis (X axis), and the driving force B can refer to a driving force for rotating the bracket 330 based on the second optical axis (Z axis). The sensing position A can refer to sensing a position of the bracket 330 based on the first axis (X axis) rotation, and the sensing position B can refer to sensing a position of the bracket 330 based on the second optical axis (Z axis) rotation.

[0236] When the pole form of the plurality of first magnets 410 is the same, the same direction current can be applied to the plurality of first coils 420, thereby generating a driving force so that the guide member 320 and the bracket 330 can be rotated based on the first axis (X axis). Also, opposite direction currents can be applied to the plurality of first coils 420, thereby generating a driving force so that the bracket 330 can be rotated based on the second optical axis (Z axis).

[0237] However, the present disclosure is not limited thereto, and the pole form of the plurality of first magnets 410 and the current application direction of the plurality of first coils 420 for generating a driving force in one direction can be variously configured.

[0238] Meanwhile, the position of the bracket 330 can be accurately sensed by summing the signal values output from the plurality of first position sensors 620. Also, the position of the bracket 330 can be accurately sensed by calculating the difference value of the signal values output from the plurality of first position sensors 620.

[0239] Further, by controlling feedback about the signal values output from the plurality of first position sensors 620, power having an appropriate direction and size can be applied to the plurality of first coils 420 so that the bracket 330 and the guide member 320 can be disposed at the target position.

[0240] Meanwhile, in the exemplary embodiment of Figure 17 and Figure 18 , it has been described that the position sensing unit 600 includes the plurality of sensing magnets 610, but the position sensing unit 600 can also be configured to include only the plurality of first position sensors 620 without including the plurality of sensing magnets 610.

[0241] In this case, the plurality of first position sensors 620 can be disposed to face the plurality of first magnets 410, and can be disposed inside or outside the plurality of first coils 420. The method of sensing the position of the bracket 330 is the same as in the above-described embodiment.

[0242] In another exemplary embodiment, the position of the first driver 400 and the position of the position sensing unit 600 can be changed from each other. For example, referring to Figure 17 , the first magnet 410 of the first driver 400 is disposed on both sides of the bracket 330 spaced apart from each other in the first axis (X-axis) direction, and the sensing magnet 610 of the position sensing unit 600 is disposed on the rear surface of the bracket 330 perpendicular to both sides of the bracket 330.

[0243] When the position of the first driver 400 and the position of the position sensing unit 600 are changed from each other, the sensing magnet 610 of the position sensing unit 600 can be disposed on both sides of the bracket 330 spaced apart from each other in the first axis (X-axis) direction, and the first magnet 410 of the first driver 400 can be disposed on the rear surface of the bracket 330 perpendicular to both sides of the bracket 330.

[0244] Meanwhile, when viewed from the second optical axis (Z-axis) direction, a virtual line connecting the plurality of balls of the first ball member B1 can overlap the neutral region of the sensing magnet 610. Also, when viewed from the second optical axis (Z-axis) direction, the virtual line connecting the plurality of balls of the first ball member B1 can overlap the first position sensor 620.

[0245] When viewed from the first axis (X-axis) direction, a virtual line connecting the plurality of balls of the second ball member B2 can overlap the neutral region of the sensing magnet 610. Also, when viewed from the first axis (X-axis) direction, the virtual line connecting the plurality of balls of the second ball member B2 can overlap the first position sensor 620.

[0246] Meanwhile, although not shown in the drawings, a spacer can be disposed on the lower surface of the first lens module 210, that is, the lower surface of the first lens bracket 212 facing the reflection member 310. The spacer has an entrance hole through which light passes, and the entrance hole can be non-circular. For example, the entrance hole can have a land track shape. That is, the inner surface of the spacer forming the entrance hole can include two planes extending parallel to each other and two curved surfaces connecting the two planes.

[0247] The inner surface of the spacer can have a waveform in which a concave shape and a convex shape are repeated, thereby preventing a flare phenomenon.

[0248] Meanwhile, referring to Figure 4The camera module 1 can include a first stopper 340. The first stopper 340 can be coupled to the housing 100 to cover at least a portion of the reflection module 300. For example, the first stopper 340 can cover at least a portion of an upper surface of the bracket 330. The first stopper 340 and the bracket 330 can be spaced apart from each other in a first optical axis (Y-axis) direction. Also, the first stopper 340 and the bracket 330 can be spaced apart from each other in a second optical axis (Z-axis) direction.

[0249] Since the first stopper 340 is spaced apart from the reflection module 300, it is possible to prevent the reflection module 300 from being separated from the housing 100 due to an external impact or the like without impeding rotation of the reflection module 300.

[0250] A cushioning member 341 having elasticity can be coupled to the first stopper 340. The cushioning member 341 can be disposed on at least one of a first surface and a second surface of the first stopper 340. The first surface of the first stopper 340 can be a surface facing the housing 110 in the first optical axis (Y-axis) direction, and the second surface of the first stopper 340 can be a surface facing the bracket 330 in the first optical axis (Y-axis) direction.

[0251] Also, the cushioning member 341 can be disposed on a side surface of the first stopper 340. The side surface of the first stopper 340 can be a surface facing the bracket 330 in the second optical axis (Z-axis) direction.

[0252] Meanwhile, the second stopper 350 can be coupled to the guide member 320 or the bracket 330. In an exemplary embodiment, the second stopper 350 can be fixed to the bracket 330, and a portion of the second stopper 350 can extend toward the guide member 320. A coupling portion to which the second stopper 350 is coupled can be disposed on the bracket 330. The coupling portion can be in the shape of a groove or a hole.

[0253] A receiving portion in which a portion of the second stopper 350 is received can be disposed on the guide member 320. The receiving portion can be in the shape of a groove or a hole.

[0254] The second stopper 350 can be fixed to the coupling portion of the bracket 330, and a portion of the second stopper 350 can extend toward the guide member 320 and can be received in the receiving portion of the guide member 320.

[0255] A portion of the second stopper 350 can be spaced apart from the receiving portion. An end portion of the portion of the second stopper 350 can be bent and extended in the receiving portion. The portion of the second stopper 350 and the receiving portion of the guide member 320 can have shapes corresponding to each other.

[0256] In an exemplary embodiment, an end of a portion of the second stopper 350 and the receiving portion can face each other in the first optical axis (Y-axis) direction.

[0257] Accordingly, the second stopper 350 can prevent the bracket 330 from being separated from the guide member 320 due to an external impact or the like, without impeding rotation of the bracket 330.

[0258] The buffer member 101 can be disposed on at least one of surfaces of the guide member 320 and the housing 100 facing each other.

[0259] For example, referring to Figure 20 , the buffer member 101 having elasticity can be disposed on an inner bottom surface of the housing 100. The inner bottom surface of the housing 100 can be a surface facing the guide member 320 in the first optical axis (Y-axis) direction. As another example, the buffer member 101 can be disposed on a lower surface of the guide member 320 (a surface facing the inner bottom surface of the housing 100 in the first optical axis (Y-axis) direction).

[0260] Accordingly, when the guide member 320 rotates based on the first axis (X-axis), a rotation range can be limited, and when the guide member 320 and the housing 100 collide with each other, an impact amount and a noise amount can be reduced.

[0261] The buffer member can be disposed on at least one of surfaces of the bracket 330 and the first stopper 340 facing each other (for example, a surface facing the first lens module 210 in the first optical axis (Y-axis) direction).

[0262] For example, referring to Figure 7 , the buffer member 331 can be disposed on an upper surface of the bracket 330 (a surface facing a lower surface of the first stopper 340 in the first optical axis (Y-axis) direction). The buffer member 331 can be formed of an elastic material.

[0263] Accordingly, when the bracket 330 rotates based on the second optical axis (Z-axis), a rotation range can be limited, and when the bracket 330 and the first stopper 340 collide with each other, an impact amount and a noise amount can be reduced.

[0264] Figure 21 is a perspective view showing a state in which the second lens module is separated from the camera module according to an exemplary embodiment of the disclosure, and Figure 22 is a bottom perspective view of the second lens module.

[0265] Referring to Figure 21 , the second lens module 220 can be disposed between the reflection module 300 and the image sensor module 800.

[0266] The second lens module 220 can move in the second optical axis (Z-axis) direction to perform focus adjustment.

[0267] In an exemplary embodiment, the second lens module 220 includes a second lens barrel 221 and a second lens holder 222. A plurality of lenses is disposed in the second lens barrel 221, and the second lens barrel 221 can be coupled to the second lens holder 222.

[0268] The camera module 1 can include a second driver 700 to move the second lens module 220 in the second optical axis (Z-axis) direction.

[0269] The second driver 700 includes a second magnet 710 and a second coil 720. The second magnet 710 and the second coil 720 can be disposed to face each other in a direction perpendicular to the second optical axis (Z-axis) direction.

[0270] The second magnet 710 is mounted on the second lens module 220. For example, the second magnet 710 can be disposed on a side surface of the second lens module 220.

[0271] In an exemplary embodiment, the second magnet 710 can include two magnets, and one magnet can be mounted on each of one side surface and the other side surface of the second lens module 220. The one side surface and the other side surface of the second lens module 220 can be spaced apart from each other in the first axis (X-axis) direction.

[0272] The second magnet 710 can be magnetized such that one surface (e.g., a surface facing the second coil 720) of the second magnet 710 has both N and S poles. For example, one surface of the second magnet 710 facing the second coil 720 can be sequentially provided with an N pole, a neutral region, and an S pole in the second optical axis (Z-axis) direction.

[0273] The second coil 720 is disposed to face the second magnet 710. For example, the second coil 720 can be disposed to face the second magnet 710 in a direction perpendicular to the second optical axis (Z-axis) direction (e.g., in the first axis (X-axis) direction).

[0274] The second coil 720 is disposed on the substrate 900, and the substrate 900 is mounted on the housing 100 such that the second magnet 710 and the second coil 720 face each other in the first axis (X-axis) direction. In an exemplary embodiment, the second coil 720 can include two coils spaced apart from each other in the first axis (X-axis) direction.

[0275] The housing 100 is provided with a through-hole passing through the housing 100, and the second coil 720 disposed on the substrate 900 can directly face the second magnet 710 through the through-hole.

[0276] The second magnet 710 is a moving member mounted on the second lens module 220 to move together with the second lens module 220 in the second optical axis (Z-axis) direction when the focus is adjusted, and the second coil 720 is a fixed member fixed to the substrate 900.

[0277] When power is applied to the second coil 720, the second lens module 220 can move in the second optical axis (Z-axis) direction by electromagnetic force between the second magnet 710 and the second coil 720.

[0278] The third ball member B3 is disposed between the second lens module 220 and the housing 100, and the second lens module 220 can be guided to move in the second optical axis (Z-axis) direction by the third ball member B3. The third ball member B3 includes a plurality of balls.

[0279] The fourth traction magnet 730 is disposed on a lower surface of the second lens module 220, and the second traction yoke can be disposed on an inner bottom surface of the housing 100. In another exemplary embodiment, the fourth traction magnet 730 can be disposed on both the second lens module 220 and the housing 100.

[0280] The fourth traction magnet 730 can be disposed closer to one side surface of the second lens module 220. That is, the fourth traction magnet 730 can be disposed closer to one side surface of the second lens module 220 than the other side surface of the second lens module 220. Also, the fourth traction magnet 730 can be disposed between one side surface of the second lens module 220 and the second optical axis (Z-axis).

[0281] The fourth traction magnet 730 and the second traction yoke can be disposed to face each other in the first optical axis (Y-axis) direction.

[0282] The fourth traction magnet 730 and the second traction yoke can generate an attractive force therebetween. For example, the attractive force is exerted between the fourth traction magnet 730 and the second traction yoke in the first optical axis (Y-axis) direction.

[0283] The third ball member B3 can come into contact with the second lens module 220 and the housing 100, respectively, by the attractive force of the fourth traction magnet 730 and the second traction yoke.

[0284] Some of the plurality of balls of the third ball member B3 can be disposed close to one side surface of the second lens module 220, and the other of the plurality of balls of the third ball member B3 can be disposed close to the other side surface of the second lens module 220. The number of balls disposed between one side surface of the second lens module 220 and the second optical axis (Z-axis) can be greater than the number of balls disposed between the other side surface of the second lens module 220 and the second optical axis (Z-axis).

[0285] In an exemplary embodiment, the third ball member B3 can include at least three balls. When three balls are provided, two of the three balls can be provided between one side surface of the second lens module 220 and the second optical axis (Z-axis), and the remaining one of the three balls can be provided between the other side surface of the second lens module 220 and the second optical axis (Z-axis).

[0286] The two balls provided between one side surface of the second lens module 220 and the second optical axis (Z-axis) can be spaced apart from each other in the second optical axis (Z-axis) direction.

[0287] The fifth guide groove g5 and the sixth guide groove g6 can be provided on at least one of the surfaces of the second lens module 220 and the housing 100 facing each other. For example, the fifth guide groove g5 can be provided on one side of the lower surface of the second lens module 220, and the sixth guide groove g6 can be provided on the other side of the lower surface of the second lens module 220.

[0288] The fifth guide groove g5 and the sixth guide groove g6 can be spaced apart from each other in a direction perpendicular to the second optical axis (Z-axis) (for example, the first axis (X-axis) direction).

[0289] The fifth guide groove g5 and the sixth guide groove g6 extend in a direction parallel to the second optical axis (Z-axis).

[0290] Some of the plurality of balls of the third ball member B3 are provided in the fifth guide groove g5, and the other of the plurality of balls of the third ball member B3 are provided in the sixth guide groove g6.

[0291] The number of contact points between some of the plurality of balls of the third ball member B3 and the fifth guide groove g5 is greater than the number of contact points between the other of the plurality of balls of the third ball member B3 and the sixth guide groove g6.

[0292] The fifth guide groove g5 is disposed closer to one side surface of the second lens module 220 than the sixth guide groove g6.

[0293] The fourth traction magnet 730 can be disposed closer to the fifth guide groove g5 than the sixth guide groove g6.

[0294] In an exemplary embodiment, the camera module 1 can sense the position of the second lens module 220. To this end, the second position sensor 760 is provided. The second position sensor 760 can be provided at a position facing the second magnet 710 of the second driver 700 (for example, at a position facing the second magnet 710 of the second driver 700 in the first axis (X-axis) direction).

[0295] Accordingly, when the second lens module 220 moves in the second optical axis (Z-axis) direction, the position of the second lens module 220 can be sensed by the second position sensor 760.

[0296] The second position sensor 760 can be a Hall sensor.

[0297] Meanwhile, the second lens module 220 can further include a light blocking member (light blocking plate) 223. The light blocking member 223 can be coupled to the second lens module 220.

[0298] One side surface and the other side surface of the second lens module 220 can be formed to respectively extend from the second lens module 220 in the second optical axis (Z-axis) direction. A portion of the one side surface of the second lens module 220 and a portion of the other side surface of the second lens module 220 can face each other in the first axis (X-axis) direction. A space can be formed between the portion of the one side surface of the second lens module 220 and the portion of the other side surface of the second lens module 220.

[0299] The light blocking plate 223 can be disposed in the space between the portion of the one side surface of the second lens module 220 and the portion of the other side surface of the second lens module 220.

[0300] The light blocking plate 223 serves to prevent light passing through the second lens module 220 from causing an undesirable reflection in the housing 100. Accordingly, a flare phenomenon can be suppressed.

[0301] The camera module 1 can further include a third stopper 750. The third stopper 750 can be coupled to the housing 100 and can cover at least a portion of the second lens module 220.

[0302] In an exemplary embodiment, the third stopper 750 can be disposed to face an upper surface of the second lens module 220 in the first optical axis (Y-axis) direction. One side and the other side of the third stopper 750 can be curved and extended in the first optical axis (Y-axis) direction to respectively face the second lens module 220 in the second optical axis (Z-axis) direction.

[0303] A cushioning member 751 having elasticity can be coupled to the third stopper 750. For example, the cushioning member 751 can be mounted on the one side and the other side of the third stopper 750 that respectively face the second lens module 220 in the second optical axis (Z-axis) direction.

[0304] In addition, the cushioning member can be mounted on at least one of the surfaces of the third stopper 750 and the second lens module 220 that face each other in the first optical axis (Y-axis) direction.

[0305] Figure 23is an exploded perspective view of a camera module according to another exemplary embodiment of the disclosure, and Figure 24 is an exploded perspective view of a camera module viewed from a direction different from Figure 23 .

[0306] Further, Figure 25 is a bottom perspective view of a reflection module according to another exemplary embodiment of the disclosure, Figure 26 is a perspective view of a reflection module and a first lens module according to another exemplary embodiment of the disclosure, and Figure 27 is a perspective view of a first driver, a first ball member, a second ball member, a first traction magnet, and a second traction magnet according to another exemplary embodiment of the disclosure.

[0307] Referring to Figures 23 to 27 , a camera module 2 according to another exemplary embodiment of the disclosure includes a reflection module 3000 and a housing 1000, and can further include a first lens module 2100.

[0308] The first lens module 2100 can be coupled to the reflection module 3000. For example, the first lens module 2100 can be coupled to a bracket 3300 of the reflection module 3000.

[0309] In an exemplary embodiment, the camera module 2 can further include a second lens module 2200. The reflection module 3000 is disposed between the first lens module 2100 and the second lens module 2200.

[0310] A first optical axis (Y-axis) of the first lens module 2100 and a second optical axis (Z-axis) of the second lens module 2200 can be formed perpendicular to each other.

[0311] The first lens module 2100 includes one or more lenses, and the second lens module 2200 includes a plurality of lenses.

[0312] The first lens module 2100 and the reflection module 3000 can be configured to rotate together for shake correction. The second lens module 2200 can move in a direction of the second optical axis (Z-axis) for focus adjustment.

[0313] The reflection module 3000 includes a reflection member 3100, a bracket 3300, and a guide member 3200.

[0314] The reflection member 3100 has a reflection surface that reflects light passing through the first lens module 2100. For example, the reflection member 3100 can be a prism or a mirror.

[0315] The reflection member 3100 is mounted on the bracket 3300. The first lens module 2100 can be disposed in front of the reflection member 3100. In an exemplary embodiment, the first lens module 2100 can be mounted in the bracket 3300.

[0316] The bracket 3300 is rotatably disposed in the guide member 3200. Also, the guide member 3200 is rotatably disposed on the housing 1000.

[0317] The guide member 3200 can rotate about a first axis (X axis) perpendicular to both the first optical axis (Y axis) and the second optical axis (Z axis) as a rotation axis. For example, the guide member 3200 can relatively rotate on the housing 1000 about the first axis (X axis) as a rotation axis. In this regard, the first lens module 2100 and the bracket 3300 can also rotate with the guide member 3200. Meanwhile, the first axis (X axis) can also be referred to as a first rotation axis.

[0318] The bracket 3300 can rotate about the second optical axis (Z axis) perpendicular to the first axis (X axis) as a rotation axis. For example, the bracket 3300 can relatively rotate on the guide member 3200 about the second optical axis (Z axis) as a rotation axis. In this case, the first lens module 2100 can rotate with the bracket 3300. Meanwhile, the second optical axis (Z axis) can also be referred to as a second rotation axis.

[0319] A first driver 4000 can be disposed to rotate the reflection module 3000. The first driver 4000 includes a first magnet 4100 and a first coil 4200.

[0320] The guide member 3200 can relatively rotate on the housing 1000 by the first driver 4000 based on the first axis (X axis). Since the bracket 3300 and the first lens module 2100 are disposed on the guide member 3200, the bracket 3300 and the first lens module 2100 can also rotate with the guide member 3200.

[0321] The bracket 3300 can relatively rotate on the guide member 3200 by the first driver 4000 based on the second optical axis (Z axis). Since the first lens module 2100 is disposed on the bracket 3300, the first lens module 2100 can also rotate with the bracket 3300.

[0322] The first magnet 4100 can be mounted on the bracket 3300. For example, the first magnet 4100 can be mounted on a side surface of the bracket 3300.

[0323] The first magnet 4100 includes a plurality of magnets. For example, the first magnet 4100 can include a first-first magnet 4100a, a first-second magnet 4100b, a first-third magnet 4100c, and a first-fourth magnet 4100d.

[0324] The bracket 3300 includes a first side surface 3301, a second side surface 3302, a third side surface 3303, and a fourth side surface 3304. The first side surface 3301 and the second side surface 3302 can be surfaces disposed on one side based on the second optical axis (Z axis), and the third side surface 3303 and the fourth side surface 3304 can be surfaces disposed on the other side based on the second optical axis (Z axis).

[0325] The first side surface 3301 and the second side surface 3302 are spaced apart from each other in the direction of the second optical axis (Z axis), and the third side surface 3303 and the fourth side surface 3304 are spaced apart from each other in the direction of the second optical axis (Z axis).

[0326] In addition, the first side surface 3301 and the fourth side surface 3304 are spaced apart from each other in the direction of the first axis (X axis), and the second side surface 3302 and the third side surface 3303 are spaced apart from each other in the direction of the first axis (X axis).

[0327] The first-first magnet 4100a can be disposed on the first side surface 3301 of the bracket 3300, the first-second magnet 4100b can be disposed on the second side surface 3302 of the bracket 3300, the first-third magnet 4100c can be disposed on the third side surface 3303 of the bracket 3300, and the first-fourth magnet 4100d can be disposed on the fourth side surface 3304 of the bracket 3300.

[0328] The first ball member B1 can be disposed between the first side surface 3301 and the second side surface 3302 of the bracket 3300, and between the third side surface 3303 and the fourth side surface 3304.

[0329] The first coil 4200 includes a plurality of coils. For example, the first coil 4200 can include a first-first coil 4200a facing the first-first magnet 4100a, a first-second coil 4200b facing the first-second magnet 4100b, a first-third coil 4200c facing the first-third magnet 4100c, and a first-fourth coil 4200d facing the first-fourth magnet 4100d.

[0330] The first coil 4200 can be disposed on the substrate 9000.

[0331] When power is applied to the first driver 4000, the first driver 4000 can generate a driving force required to rotate the bracket 3300 and the guide member 3200 with the first axis (X axis) as a rotation axis, and can generate a driving force required to rotate the bracket 3300 with the second optical axis (Z axis) as a rotation axis. For example, the first driver 4000 can rotate the bracket 3300 and the guide member 3200 by adjusting the driving forces of the four pairs of magnets and coils.

[0332] In the exemplary embodiment, among the four pairs of magnets and coils, the directions of the driving forces of the magnets and coils diagonally spaced apart from each other can be opposite to each other. For example, the first-first coil 4200a and the first-third coil 4200c can be connected in series with each other. Accordingly, the direction of the driving force between the first-first magnet 4100a and the first-first coil 4200a and the direction of the driving force between the first-third magnet 4100c and the first-third coil 4200c can be formed to be opposite to each other.

[0333] However, the coils disposed in the diagonal line direction are not necessarily connected in series, but can also be individually controlled.

[0334] When the direction of the driving force generated by the first-first magnet 4100a and the first-first coil 4200a is the positive first optical axis (Y axis) direction (+Y axis direction), the direction of the driving force generated by the first-third magnet 4100c and the first-third coil 4200c disposed in the diagonal line direction can be the negative first optical axis (Y axis) direction (-Y axis direction).

[0335] When the direction of the driving force generated by the first-second magnet 4100b and the first-second coil 4200b is the positive first optical axis (Y axis) direction (+Y axis direction), the direction of the driving force generated by the first-fourth magnet 4100d and the first-fourth coil 4200d disposed in the diagonal line direction can be the negative first optical axis (Y axis) direction (-Y axis direction).

[0336] Meanwhile, the sensing method of the positions of the bracket 3300 and the guide member 3200 is the same as in the above-described exemplary embodiment, and thus a detailed description thereof will be omitted.

[0337] According to the exemplary embodiment of the present disclosure, the reflection module and the camera module including the same can enable the reflection member to be disposed at its original position without applying power.

[0338] In addition, according to the exemplary embodiment of the present disclosure, it is possible to simplify the structure of the driver to reduce the size and weight thereof.

[0339] While specific examples have been shown and described, it will be apparent to those skilled in the art, upon understanding the disclosure, 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 understood as being descriptive in nature and not as being limiting in purpose. Descriptions of features or aspects within each example are to be considered as applicable to similar features or aspects within other examples. Proper results can be achieved if the described techniques are performed in a different order, and / or if components in the described systems, architectures, devices, or circuits are combined or substituted for one another or are supplemented, regardless of whether any such design choices are expressly described. Accordingly, the scope of the disclosure is not limited by the specific implementations described above, but only by the claims and their equivalents, and any variations that would be apparent to one of skill in the art upon reading the disclosure will be considered to fall within the scope of the disclosure as defined by the claims and their equivalents.

Claims

1. A reflective module, characterized in that The reflection module includes: a housing; a guide member disposed to be relatively rotatable on the housing based on a first rotation axis; and a bracket disposed to be relatively rotatable on the guide member based on a second rotation axis and having a reflection member installed therein, wherein a first traction magnet is provided on one of the guide member and the bracket, wherein a second traction magnet facing the first traction magnet is provided on the other of the guide member and the bracket, and wherein both attractive force and repulsive force are applied between the first traction magnet and the second traction magnet.

2. The reflection module of claim 1, characterized in that one surface of the first traction magnet and one surface of the second traction magnet face each other, and wherein the number of polarities of the one surface of the first traction magnet and the number of polarities of the one surface of the second traction magnet are different from each other.

3. The reflection module of claim 2, characterized in that on the one surface of the first traction magnet and the one surface of the second traction magnet, an area in which opposite polarities face each other is greater than an area in which the same polarities face each other.

4. The reflection module of claim 1, characterized in that a magnitude of the attractive force is greater than a magnitude of the repulsive force.

5. The reflection module of claim 1, characterized in that one surface of the first traction magnet and one surface of the second traction magnet face each other, wherein the one surface of the first traction magnet has one polarity, and wherein the one surface of the second traction magnet has a plurality of polarities including opposite polarities.

6. The reflection module of claim 5, characterized in that the one surface of the second traction magnet has two first polarities spaced apart from each other and a second polarity disposed between the two first polarities, wherein the first polarities are the same polarity as the one polarity of the one surface of the first traction magnet, and wherein the first polarity and the second polarity are opposite polarities.

7. The reflection module of claim 6, characterized in that a length of the second polarity is equal to or longer than a sum of lengths of the two first polarities, and wherein the length of the second polarity and the lengths of the two first polarities are lengths in a direction of the first rotation axis.

8. The reflection module of claim 5, characterized in that a boundary region between the plurality of polarities is parallel to the second rotation axis.

9. The reflection module of claim 1, characterized in that among the first traction magnet and the second traction magnet, a length of the traction magnet installed on the bracket is equal to or longer than a length of the traction magnet installed on the guide member, and wherein the lengths of the first traction magnet and the second traction magnet are lengths in a direction of the first rotation axis.

10. The reflection module of claim 1, characterized in that the first traction magnet includes a first-first traction magnet and a first-second traction magnet spaced apart from each other in a direction of the first rotation axis, wherein the second traction magnets include a second-first traction magnet facing the first-first traction magnet and a second-second traction magnet facing the first-second traction magnet, wherein both attractive and repulsive forces are exerted between the first-first traction magnet and the second-first traction magnet, and wherein both attractive and repulsive forces are exerted between the first-second traction magnet and the second-second traction magnet. 11.The reflection module of claim 10, characterized in that the number of polarities of one surface of the first-first traction magnet facing each other is different from the number of polarities of one surface of the second-first traction magnet facing each other, and wherein the number of polarities of one surface of the first-second traction magnet facing each other is different from the number of polarities of one surface of the second-second traction magnet facing each other. 12.The reflection module of claim 11, characterized in that the one surface of the first-first traction magnet and the one surface of the first-second traction magnet have first and second polarities, respectively, and the one surface of the second-first traction magnet and the one surface of the second-second traction magnet have the first or second polarity, respectively, and wherein the first and second polarities are opposite polarities. 13.The reflection module of claim 12, characterized in that of the first and second polarities of the one surface of the first-first traction magnet, the length of the polarity disposed closer to the second rotation axis is equal to or longer than the length of the other polarity, wherein of the first and second polarities of the one surface of the first-second traction magnet, the length of the polarity disposed closer to the second rotation axis is equal to or longer than the length of the other polarity, and wherein the lengths of the first and second polarities are lengths in the direction of the first rotation axis. 14.The reflection module of claim 1, characterized in that a first ball member including a plurality of balls is disposed between the guide member and the bracket, and wherein the plurality of balls are spaced apart from each other in the direction of the second rotation axis.

15. The reflective module of claim 1, wherein, The reflection module further includes: a first driver including a first magnet disposed on the bracket and a first coil facing the first magnet, wherein the first magnet includes two magnets, and the two magnets are disposed apart on one surface and another surface of the bracket spaced apart from each other in the direction of the first rotation axis, wherein the first driver is spaced apart from the first rotation axis in the direction of the second rotation axis, and wherein the first driver is spaced apart from the second rotation axis in the direction of the first rotation axis.

16. A camera module characterized by, The camera module includes: a housing; a guide member disposed to be relatively rotatable on the housing based on a first rotation axis; a bracket disposed to be relatively rotatable on the guide member based on a second rotation axis, and having a reflection member mounted therein; and a first driver including a first magnet disposed on the bracket and a first coil facing the first magnet, wherein the first magnet includes two magnets and the two magnets are disposed apart from each other on one surface and another surface of the bracket spaced apart in the direction of the first rotation axis, wherein the first driver is spaced apart from the first rotation axis in the direction of the second rotation axis, and wherein the first driver is spaced apart from the second rotation axis in the direction of the first rotation axis.

17. The camera module of claim 16, wherein, The camera module further includes: a first lens module having a first optical axis and coupled to the bracket, wherein the first optical axis is perpendicular to the first rotation axis and the second rotation axis.

18. The camera module of claim 16, wherein, a first traction magnet is disposed in one of the guide member and the bracket, a second traction magnet facing the first traction magnet is disposed in the other of the guide member and the bracket, one surface of the first traction magnet and one surface of the second traction magnet face each other, and a number of polarities of the one surface of the first traction magnet is different from a number of polarities of the one surface of the second traction magnet.

19. The camera module of claim 16, characterized in that a first ball member including a plurality of balls is disposed between the guide member and the bracket, and the plurality of balls of the first ball member are spaced apart from each other in the direction of the second rotation axis, and wherein a second ball member including a plurality of balls is disposed between the guide member and the housing, and the plurality of balls of the second ball member are spaced apart from each other in the direction of the first rotation axis.

20. The camera module of claim 19, characterized in that a virtual line connecting the plurality of balls of the first ball member in the direction of the second rotation axis is spaced apart from the first magnet in the direction of the first rotation axis, and wherein a virtual line connecting the plurality of balls of the second ball member in the direction of the first rotation axis is spaced apart from the first magnet in the direction of the second rotation axis.

21. The camera module of claim 16, wherein, The camera module further includes: a position sensing unit including a plurality of sensing magnets disposed in the bracket and a plurality of first position sensors facing the plurality of sensing magnets in the direction of the second rotation axis.

22. The camera module of claim 21, characterized in that one surface of each of the plurality of sensing magnets has an N-pole, a neutral region, and an S-pole, a magnetic pole form of one surface of each of the plurality of sensing magnets is identical, and the position sensing unit is configured to: generate a position signal of the guide member by summing signal values output from the plurality of first position sensors, and generate a position signal of the bracket by calculating a difference between signal values output from the plurality of first position sensors.

23. The camera module of claim 21, characterized in that one surface of each of the plurality of sensing magnets has an N-pole, a neutral region, and an S-pole, the positions of the N-pole and the S-pole of one of the plurality of sensing magnets are opposite to each other from the positions of the N-pole and the S-pole of another of the plurality of sensing magnets, and the position sensing unit is configured to: generate a position signal of the guide member by calculating a difference between signal values output from the plurality of first position sensors, and generate a position signal of the bracket by summing signal values output from the plurality of first position sensors.

24. The camera module according to claim 21, characterized in that the plurality of sensing magnets are spaced apart from each other in the direction of the first rotation axis, a virtual line extending on the second rotation axis is disposed between the plurality of sensing magnets, and a distance between each of the sensing magnets and the virtual line extending on the second rotation axis is the same.

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