Optical module and camera module

Abstract

The present disclosure relates to an optical module comprising: a housing; a guide member provided in the housing and configured to be rotatable about a first rotation axis; an optical member configured to be rotatable about a first rotation axis together with the guide member; a first ball member disposed between the housing and the guide member and including a plurality of balls; and a protrusion provided on the housing or the guide member and protruding in a direction of the first rotation shaft, in which the plurality of balls of the first ball member are configured to roll while being in contact with an outer surface of the protrusion. The disclosure also relates to a camera module.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of priority from Korean Patent Application No. 10-2023-0152185 filed on November 6, 2023, in the Korean Intellectual Property Office, and Korean Patent Application No. 10-2024-0092484 filed on July 12, 2024, in the Korean Intellectual Property Office, the disclosures of which are incorporated herein by reference in their entirety for all purposes. Technical Field

[0003] The present disclosure relates to an optical module and a camera module including the optical module. Background Art

[0004] Recently, a camera module that can bend a traveling path of light by a reflection module provided in front of a lens module may be used in a mobile device.

[0005] The camera module may have an optical image stabilization function for compensating for shake during shooting to improve resolution, and the optical image stabilization function may be achieved by the dual-axis rotation of the reflective module. For example, the reflective module may rotate around two axes that are perpendicular to the optical axis of the lens module and perpendicular to each other as rotation axes.

[0006] A plurality of balls may be used to support the rotational movement of the reflection module. The plurality of balls may be disposed between the reflection module and the housing and may contact both the reflection module and the housing.

[0007] In this case, it may be necessary to apply force to the plurality of balls to keep the plurality of balls in contact with the reflection module and the housing. However, when the reflection module rotates, the force applied to the plurality of balls may deviate, so the rotation of the reflection module may not be smooth. Utility Model Content

[0008] This Summary is provided to introduce a selection of concepts in a concise form, and these concepts will be further described in the Detailed Description below. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

[0009] In one general aspect, an optical module includes a housing; a guide member disposed in the housing and configured to be rotatable about a first rotation axis; an optical member configured to be rotatable about the first rotation axis together with the guide member; a first ball member disposed between the housing and the guide member and including a plurality of balls; and a protrusion disposed on the housing or the guide member and protruding in the direction of the first rotation axis, wherein the plurality of balls of the first ball member are configured to roll while in contact with an outer surface of the protrusion.

[0010] The plurality of balls of the first ball member may contact both the housing and the guide member, and either or both of a surface of the housing in contact with the plurality of balls and a surface of the guide member in contact with the plurality of balls may be tilted relative to the first rotation axis.

[0011] The protrusion may have a truncated cone shape having a cross-sectional area that changes in a direction of the first rotation axis.

[0012] The plurality of balls of the first ball member may be in two-point contact with the housing and in two-point contact with the guide member.

[0013] A length of the protrusion in the direction of the first rotation axis may be smaller than a diameter of each of the plurality of balls of the first ball member.

[0014] The optical module may further include a holder provided to be rotatable relative to the protrusion, wherein the holder may include a body and a support portion extending from the body, and the support portion may be provided between the plurality of balls of the first ball member.

[0015] The optical module may further include a sub-ball member including a plurality of sub-balls, each of the plurality of sub-balls having a diameter smaller than a diameter of each of the plurality of balls, wherein the plurality of sub-balls of the sub-ball member may be disposed between the plurality of balls of the first ball member.

[0016] The optical module may further include a first magnet, which is disposed on the guide member and includes a 1-1 magnet and a 1-2 magnet, wherein the 1-1 magnet and the 1-2 magnet may be spaced apart from each other in a direction perpendicular to the direction of the first rotation axis, and the first ball member may be disposed between the 1-1 magnet and the 1-2 magnet.

[0017] The optical module may further include a first coil disposed on the housing and facing one surface of the first magnet, wherein the one surface of the first magnet may include an N pole and an S pole spaced apart from each other in a direction perpendicular to the direction of the first rotation axis.

[0018] The optical module may further include a first pulling yoke provided on the housing and spaced apart from the first magnet in a direction of the first rotation axis.

[0019] The optical module may further include a lens module having an optical axis, wherein the optical component may be a reflective component, the reflective component including a reflective surface configured to reflect light, the lens module may be arranged so that light reflected from the reflective component is incident on the lens module in the optical axis direction of the lens module, and the optical module may further include: a sensing magnet arranged on the guide member and spaced apart from the protrusion in the optical axis direction of the lens module; and a first position sensor arranged on the housing and facing the sensing magnet.

[0020] The optical module may further include: a bracket on which the optical member is mounted, the bracket being configured to be rotatable relative to the guide member about a second rotation axis perpendicular to the first rotation axis; a second magnet provided on the bracket; and a second coil facing the second magnet.

[0021] The optical module may further include a lens module having an optical axis, wherein the optical component may be a reflective component, the reflective component including a reflective surface configured to reflect light, the lens module may be arranged so that light reflected from the reflective component is incident on the lens module in the direction of the optical axis of the lens module, and the optical module may further include a second position sensor, the second position sensor being arranged on the housing and facing the second magnet so that a virtual line formed by extending the optical axis of the lens module passes through the second position sensor.

[0022] The optical module may further include a second ball member disposed between the bracket and the guide member and including a plurality of balls spaced apart from each other in the direction of the second rotation axis.

[0023] In another general aspect, a camera module includes: a bracket; a reflecting member disposed on the bracket and configured to reflect light; a guide member, the bracket being disposed on the guide member; a housing, the bracket and the guide member being disposed in the housing; a first ball member disposed between the guide member and the housing and including a plurality of balls; and a first lens module having a first optical axis, and light reflected from the reflecting member is incident on the first lens module, wherein the guide member is configured to be rotatable together with the bracket around a first rotation axis, the bracket is configured to be rotatable relative to the guide member around a second rotation axis perpendicular to the first rotation axis, one of the housing and the guide member includes a protrusion protruding in the direction of the first rotation axis, and the other of the housing and the guide member includes a guide groove, the plurality of balls of the first ball member are in contact with a surface of the protrusion and a surface of the guide groove, and either or both of the surface of the protrusion in contact with the plurality of balls of the first ball member and the surface of the guide groove in contact with the plurality of balls of the first ball member are inclined surfaces inclined relative to the first rotation axis.

[0024] The camera module may further include a first magnet, the first magnet including two magnets arranged on the guide member, wherein the two magnets of the first magnet may be spaced apart from each other in a direction perpendicular to the direction of the first rotation axis, and the camera module may further include a first traction yoke, the first traction yoke being arranged on the housing and spaced apart from the first magnet in the direction of the first rotation axis.

[0025] The plurality of balls of the first ball member may be in contact with an outer surface of the protrusion, and a diameter of each of the plurality of balls of the first ball member may be greater than a length of the protrusion in the direction of the first rotation axis.

[0026] A lubrication groove may be formed in either or both of a surface of the housing in contact with the plurality of balls of the first ball member and a surface of the guide member in contact with the plurality of balls of the first ball member, and the camera module may further include a lubricant provided in the lubrication groove.

[0027] The camera module may further include a second lens module having a second optical axis and disposed on the bracket such that the second lens module is disposed in front of the reflective member, wherein the first optical axis and the second optical axis may be perpendicular to each other.

[0028] The direction of the first rotation axis may be the same as or parallel to the direction of the second optical axis, and the direction of the second rotation axis may be perpendicular to both the first optical axis and the second optical axis.

[0029] The direction of the first rotation axis may be the same as or parallel to the direction of the first optical axis, and the direction of the second rotation axis may be perpendicular to both the first optical axis and the second optical axis.

[0030] In another general aspect, an optical module includes: a shell; and a reflection module, which is arranged in the shell and configured to be rotatable around a first rotation axis relative to the shell, wherein a first guide groove is formed in a surface of the reflection module facing the shell, the first guide groove having a circular planar shape centered on the first rotation axis, and a second guide groove is formed in a surface of the shell facing the surface of the reflection module on which the first guide groove is formed, the second guide groove having a circular planar shape centered on the first rotation axis, the optical module also includes a first ball member, the first ball member includes a plurality of balls arranged between the first guide groove and the second guide groove, and the plurality of balls of the first ball member are equidistantly spaced from each other in a circumferential direction around the first rotation axis, and are configured to roll in the circumferential direction while the reflection module rotates relative to the shell.

[0031] The optical module may further include a protrusion having a circular planar shape centered on the first rotation axis and arranged in either or both of the first guide groove and the second guide groove, wherein a plurality of balls of the first ball member may be arranged between the outer surface of the protrusion and the inner wall surface of the first guide groove or the inner wall surface of the second guide groove, and may also be configured to roll in a circumferential direction while in contact with the outer surface of the protrusion when the reflection module rotates relative to the housing.

[0032] The optical module may further include a holder including a main body and a plurality of support portions extending from the main body in the direction of the first rotation axis, wherein the holder may be disposed between the first guide groove and the second guide groove such that the plurality of support portions are disposed between the plurality of balls of the first ball member.

[0033] The plurality of balls of the first ball member may include a first plurality of balls and a second plurality of balls, and the first plurality of balls and the second plurality of balls may be spaced apart from each other in a direction of the first rotation axis.

[0034] The optical module may further include a sub-ball member including a plurality of sub-balls disposed between the plurality of balls of the first ball member.

[0035] The optical module may further include a barrier wall provided in either or both of the first guide groove and the second guide groove and provided between the plurality of balls of the first ball member.

[0036] The reflection module may include: a guide member, which is arranged in a shell and configured to be rotatable around a first rotation axis relative to the shell; a bracket, which is arranged in the guide member and configured to be rotatable around the first rotation axis relative to the shell together with the guide member, and rotatable around a second rotation axis perpendicular to the first rotation axis relative to the guide member; and a reflection member, which is arranged in the bracket and configured to be rotatable around the first rotation axis relative to the shell together with the bracket and the guide member, and rotatable around the second rotation axis relative to the guide member together with the bracket, wherein the first guide groove may be formed in a surface of the guide member facing a surface of the shell on which the second guide groove is formed.

[0037] In another general aspect, an optical module includes: a shell; a reflection module disposed in the shell and configured to be rotatable relative to the shell about a first rotation axis; a first coil disposed on a surface of the shell facing the reflection module; a first magnet disposed on a surface of the reflection module facing the surface of the shell on which the first coil is disposed, so that the first magnet faces the first coil; and a first ball member including a plurality of balls disposed between the surface of the shell on which the first coil is disposed and the surface of the reflection module on which the first magnet is disposed, wherein the first coil and the first magnet are configured to cause the reflection module to rotate relative to the shell about the first rotation axis, and the plurality of balls of the first ball member are equidistant from each other in a circumferential direction around the first rotation axis, and are configured to roll in the circumferential direction while the reflection module rotates relative to the shell.

[0038] The first magnet may include two magnets disposed on opposite sides of the plurality of balls of the first ball member in a direction perpendicular to the first rotation axis, and the first coil may include two coils facing the two magnets of the first magnet.

[0039] A first guide groove can be formed in the surface of the reflection module on which the first magnet is provided, the first guide groove having a circular planar shape centered on the first rotation axis, a second guide groove can be formed in the surface of the shell on which the first coil is provided, the second guide groove having a circular planar shape centered on the first rotation axis, and a plurality of balls of the first ball member can be provided between the first guide groove and the second guide groove.

[0040] The optical module may further include a protrusion having a circular planar shape centered on the first rotation axis and arranged in either or both of the first guide groove and the second guide groove, wherein a plurality of balls of the first ball member may be arranged between the outer surface of the protrusion and the inner wall surface of the first guide groove or the inner wall surface of the second guide groove, and may also be configured to roll in a circumferential direction while in contact with the outer surface of the protrusion when the reflection module rotates relative to the housing.

[0041] Other features and aspects will be apparent from the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a perspective view illustrating a camera module according to an embodiment of the present disclosure.

[0043] Figure 2 It shows Figure 1 Exploded perspective view of the camera module.

[0044] Figure 3 It is shown from Figure 1 A perspective view of the camera module with the outer casing removed.

[0045] Figure 4 It shows Figure 3 A perspective view of the first lens module in an exploded state.

[0046] Figure 5 It shows Figure 2 A perspective view of the reflective module.

[0047] Figure 6 It shows Figure 5 Exploded perspective view of the reflective module.

[0048] Figure 7 Shown from below Figure 6 A three-dimensional view of the bracket and guide member of the reflective module.

[0049] Figure 8 It shows Figure 2 、 Figure 6 and Figure 7 FIG1 is a diagram of the support structure of the first ball member, and is shown in a simplified form for ease of explanation. Figure 6 and Figure 7 Figure 2 shows a diagram of a guide member and a housing.

[0050] Figure 9 It shows Figure 8 sectional view of a state in which the components shown in FIG are coupled to each other.

[0051] Figure 10 It shows Figure 9 FIG. 1 is a diagram of a modified example of .

[0052] Figure 11 It shows Figure 8 FIG. 1 is a diagram of a first modified example of FIG.

[0053] Figure 12 It shows Figure 8 FIG. 1 is a diagram of a second modified example of FIG.

[0054] Figures 13 to 15 It shows Figure 6 and Figure 7 FIG. 1 is a diagram of a modified example of the first magnet.

[0055] Figure 16 and Figure 17 It shows Figure 2 The second lens module is Figure 1 A perspective view of the camera module separated from the original.

[0056] Figure 18 is a perspective view illustrating a camera module according to another embodiment of the present disclosure.

[0057] Figure 19 It shows Figure 18 Exploded perspective view of the camera module.

[0058] Figure 20 It shows Figure 19 Exploded perspective view of the reflector module.

[0059] Figure 21 Shown from below Figure 20 An exploded perspective view of the bracket and guide member of the reflective module.

[0060] Figure 22 It shows Figure 20 and Figure 21 FIG1 is a diagram of an example of a support structure of a first ball member shown in FIG1 and is shown in simplified form for ease of explanation. Figure 20 and Figure 21 Figure 1 shows a diagram of a guide member and housing.

[0061] Throughout the drawings and detailed description, the same reference numerals refer to the same elements. For purposes of clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative sizes, proportions, and depictions of elements in the drawings may be exaggerated. DETAILED DESCRIPTION

[0062] The following specific embodiments are provided to help the reader gain a comprehensive understanding of the methods, devices and / or systems described herein. However, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent after understanding the disclosure of the present application. For example, the order of operations described herein is merely an example, and except for operations that must occur in a specific order, it is not limited to the order set forth herein, but can be changed, which will be apparent after understanding the disclosure of the present application. In addition, for greater clarity and brevity, descriptions of features well known in the art may be omitted.

[0063] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided merely to illustrate some of the many possible ways to implement the methods, devices, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0064] Throughout the specification, when an element such as a layer, a region, or a substrate is described as being “on,” “connected to,” or “coupled to” another element, the element may be directly “on,” “connected to,” or “coupled to” the other element, or one or more other elements may be present between the element and the other element. Conversely, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, there are no other elements present between the element and the other element.

[0065] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0066] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are used only to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Thus, without departing from the teachings of the examples described herein, a first member, first component, first region, first layer, or first portion mentioned in these examples may also be referred to as a second member, second component, second region, second layer, or second portion.

[0067] Spatially relative terms such as “above,” “above,” “below,” and “below” may be used herein for descriptive convenience to describe the relationship of one element relative to another element as shown in the accompanying drawings. In addition to covering the orientations depicted in the accompanying drawings, these spatially relative terms are intended to cover different orientations of the device in use or operation. For example, if the device in the accompanying drawings is turned over, an element described as being “above” or “above” relative to another element would be “below” or “below” relative to the other element. Thus, the term “above” covers both the orientations of “above” and “below,” depending on the spatial orientation of the device. The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used herein should be interpreted accordingly.

[0068] The terms used herein are only used to describe various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the terms "a," "an," and "the" are intended to include plural forms as well. The terms "include," "comprising," and "having" indicate the presence of the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0069] The embodiments relate to an optical module and a camera module, and the camera module may be mounted in portable electronic devices such as mobile communication terminals, smart phones, and tablet PCs.

[0070] The optical module may include an optical component. In an embodiment, the optical module may be understood to include any one or any combination of any two or more of a lens module, a reflective module, and an image sensor module. In addition, the optical component may refer to any one or any combination of any two or more of a lens, a reflective component, and an image sensor.

[0071] Figure 1 is a perspective view illustrating a camera module according to an embodiment of the present disclosure. Figure 2 It shows Figure 1 Exploded perspective view of the camera module. Figure 3 It is shown from Figure 1 A perspective view of the camera module with the outer casing removed. Figure 4 It shows Figure 3 : is a perspective view of the exploded state of the first lens module shown in FIG.

[0072] Reference Figures 1 to 4 , the camera module 1 according to an embodiment of the present disclosure may include a first lens module 2100 , a reflection module 3000 , a second lens module 2200 , and a housing 1000 .

[0073] The first lens module 2100 may include at least one lens and a first lens barrel 2110. The at least one lens may have a first optical axis (X axis) and may be mounted on the first lens barrel 2110. The first optical axis (X axis) may be Figure 4 Extends in the vertical direction.

[0074] The first lens module 2100 may be disposed in front of the reflective module 3000, that is, on the front side of the reflective module 3000. The phrase "the front side of the reflective module 3000" may indicate a positive first optical axis (X-axis) direction (+X-axis direction) relative to the reflective module 3000. For example, the first lens module 2100 may be disposed above the reflective module 3000 in the first optical axis (X-axis) direction.

[0075] The first lens module 2100 may be coupled to the reflection module 3000. For example, the first lens module 2100 may be coupled to Figures 5 to 7 The bracket 3200 of the reflection module 3000 is shown in FIG.

[0076] The reflection module 3000 may include Figure 6 and Figure 7 The reflective member 3100 shown in FIG3 may have a reflective surface that reflects light passing through the first lens module 2100. For example, the reflective member 3100 may be a prism or a reflective mirror. The reflective member 3100 may be coupled to the bracket 3200.

[0077] The first lens module 2100 and the reflection module 3000 may be disposed in the housing 1000 .

[0078] In an embodiment, the camera module 1 may further include a second lens module 2200. The reflection module 3000 may be disposed between the first lens module 2100 and the second lens module 2200. The second lens module 2200 may include a plurality of lenses and Figure 16 The second lens barrel 2210 shown in FIG. A plurality of lenses may have a second optical axis (Z axis) and may be mounted on the second lens barrel 2210 .

[0079] A first optical axis (X-axis) of the first lens module 2100 and a second optical axis (Z-axis) of the second lens module 2200 may be perpendicular to each other.

[0080] The first lens module 2100 may include one or more lenses, and the second lens module 2200 may include a plurality of lenses.

[0081] When viewed along the first optical axis (X-axis), one or more lenses of the first lens module 2100 may have a circular shape. When viewed along the second optical axis (Z-axis), at least one of the multiple lenses of the second lens module 2200 may have a non-circular shape. For example, a non-circular lens may have different dimensions in two directions perpendicular to the second optical axis (Z-axis) and perpendicular to each other. In embodiments, the length of the non-circular lens in the first axis (Y-axis), which is perpendicular to both the first optical axis (X-axis) and the second optical axis (Z-axis), may be greater than the width of the non-circular lens in the first optical axis (X-axis).

[0082] In an embodiment, the camera module 1 may include a first lens module 2100 and a second lens module 2200 , but the embodiment is not limited thereto, and the camera module 1 may include only one of the first lens module 2100 and the second lens module 2200 .

[0083] In an embodiment, the first lens module 2100 and the reflective member 3100 may be configured to rotate together for optical image stabilization. That is, the first lens module 2100 and the reflective member 3100 may rotate together about two axes perpendicular to each other.

[0084] For example, the first lens module 2100 and the reflective member 3100 may rotate together around the first optical axis (X axis) as a rotation axis, and may rotate together around a first axis (Y axis) perpendicular to both the first optical axis (X axis) and the second optical axis (Z axis).

[0085] In an embodiment, the second lens module 2200 may be movable in the second optical axis (Z-axis) direction for focus adjustment.

[0086] The camera module 1 may further include an image sensor module 8000 .

[0087] The image sensor module 8000 may include a sensor housing 8300 , an image sensor 8100 , and a printed circuit board 8200 , and may further include an infrared cut filter (not shown).

[0088] An infrared cut filter may be mounted on the sensor housing 8300. The infrared cut filter may block light in the infrared region.

[0089] The printed circuit board 8200 may be coupled to the sensor housing 8300 , and the image sensor 8100 may be mounted on the printed circuit board 8200 .

[0090] The light passing through the second lens module 2200 may be received by the image sensor module 8000 (eg, the image sensor 8100 ).

[0091] The camera module 1 may further include a housing 1100. The housing 1100 may be coupled to the case 1000 to cover an upper portion of the case 1000. The housing 1100 may have an opening, and the first lens module 2100 may be disposed in the opening.

[0092] The first lens module 2100 may be disposed such that at least a portion of the first lens module 2100 may protrude outward from the housing 1000 .

[0093] Figure 5 It shows Figure 2 A perspective view of the reflective module. Figure 6 yes Figure 5 Exploded perspective view of the reflector module. Figure 7 Shown from below Figure 6 A three-dimensional view of the bracket and guide member of the reflective module.

[0094] Reference Figures 5 to 7 , the reflection module 3000 may include a reflection member 3100 , a bracket 3200 , and a guide member 3300 .

[0095] The reflective member 3100 may have a reflective surface that reflects light passing through the first lens module 2100. For example, the reflective member 3100 may be a prism or a reflective mirror.

[0096] When the reflective member 3100 is a prism, the reflective member 3100 may have a shape of a rectangular parallelepiped or a cube divided in half in a diagonal direction. The prism may include an incident surface on which light is incident, a reflective surface that reflects the light passing through the incident surface, and an exit surface through which the light reflected from the reflective surface is emitted.

[0097] The reflective member 3100 may be mounted on the bracket 3200. The first lens module 2100 may be provided on the front side of the reflective member 3100. In an embodiment, the first lens module 2100 may be mounted on the bracket 3200.

[0098] The bracket 3200 may be provided on the guide member 3300 and may be rotated. In addition, the guide member 3300 may be provided on the housing 1000 and may be rotated.

[0099] The guide member 3300 can rotate about the first optical axis (X-axis). For example, the guide member 3300 can rotate relative to the housing 1000 about the first optical axis (X-axis). In this case, the first lens module 2100 and the bracket 3200 can also rotate along with the guide member 3300. The first optical axis (X-axis) can also be referred to as the first rotation axis.

[0100] The bracket 3200 can rotate about a first axis (Y-axis) perpendicular to both the first optical axis (X-axis) and the second optical axis (Z-axis). For example, the bracket 3200 can rotate about the first axis (Y-axis) relative to the guide member 3300. In this case, the first lens module 2100 can rotate together with the bracket 3200. The first axis (Y-axis) can also be referred to as the second rotation axis.

[0101] A first driver 4000 may be provided to rotate the reflection module 3000. The first driver 4000 may include a first magnet 4100 and a first coil 4200. The guide member 3300 may be rotated relative to the housing 1000 about the first optical axis (X-axis) by the first driver 4000. Since the bracket 3200 and the first lens module 2100 are disposed on the guide member 3300, the bracket 3200 and the first lens module 2100 may also rotate together with the guide member 3300.

[0102] The first magnet 4100 may be mounted on the guide member 3300. That is, the first magnet 4100 may be mounted on one surface of the guide member 3300. In an embodiment, the one surface of the guide member 3300 may be a surface of the guide member 3300 that faces the housing 1000 in the first optical axis (X-axis) direction. For example, the one surface of the guide member 3300 may be the lower surface of the guide member 3300.

[0103] The first magnet 4100 may include two magnets spaced apart from each other.

[0104] The two magnets may be disposed such that length directions of the two magnets are parallel to the second optical axis (Z axis), and may be spaced apart from each other in the first axis (Y axis) direction.

[0105] The two magnets of the first magnet 4100 may be magnetized so that one surface (e.g., the surface facing the first coil 4200) may have a first polarity and a second polarity. Hereinafter, the first polarity and the second polarity may be opposite polarities, and when the first polarity is an N pole, the second polarity is an S pole.

[0106] In an embodiment, one of the two magnets of the first magnet 4100 (hereinafter referred to as a 1-1 magnet) may have a first polarity and a second polarity along the second optical axis (Z axis) on a surface facing the first coil 4200, and may form a neutral region between the first polarity and the second polarity.

[0107] The other of the two magnets of the first magnet 4100 (hereinafter referred to as the 1-2 magnet) may have a second polarity and a first polarity along the second optical axis (Z axis) on a surface facing the first coil 4200 and may form a neutral region between the second polarity and the first polarity.

[0108] The first coil 4200 may be disposed at a position facing the first magnet 4100. In an embodiment, the first coil 4200 may be disposed to face the first magnet 4100 in the first optical axis (X-axis) direction.

[0109] The first coil 4200 may be disposed on the substrate 9000 , and the substrate 9000 may be mounted on the housing 1000 such that the first magnet 4100 and the first coil 4200 may face each other in the first optical axis (X-axis) direction.

[0110] The housing 1000 may include a through hole passing through the housing 1000 in the first optical axis (X-axis) direction, and the first coil 4200 may be disposed in the through hole and may directly face the first magnet 4100 .

[0111] The first coil 4200 may include two coils, and the two coils may be spaced apart from each other in the first axis (Y axis) direction.

[0112] During optical image stabilization, the first magnet 4100 may be configured as a moving member mounted on the guide member 3300 and rotated together with the guide member 3300 , and the first coil 4200 may be configured as a fixed member fixed to the base plate 9000 .

[0113] When power is applied to the first driver 4000 , the first driver 4000 may generate a driving force to rotate the guide member 3300 about the first optical axis (X axis) as a rotation axis.

[0114] The first ball member B1 may be disposed between the guide member 3300 and the housing 1000. The first ball member B1 may include a plurality of balls.

[0115] One of the guide member 3300 and the housing 1000 may include a protrusion RX. For example, the housing 1000 may include the protrusion RX. In an embodiment, the protrusion RX may protrude from the bottom surface of the housing 1000 in the direction of the first optical axis (X axis). A virtual line formed by extending the first optical axis (X axis) of the first lens module 2100 may pass through the protrusion RX. The bottom surface of the housing 1000 may be a plane perpendicular to the first optical axis (X axis).

[0116] In an embodiment, the protrusion RX may be integrally formed with the housing 1000. Alternatively, the protrusion RX may be provided as a member separate from the housing 1000 and may be configured to be fixed to the housing 1000.

[0117] The protrusion RX may form a rotation axis of the guide member 3300 .

[0118] The plurality of balls of the first ball member B1 may be disposed around the protrusion RX. For example, the plurality of balls may be in contact with the outer surface of the protrusion RX.

[0119] An attractive force may be applied between the guide member 3300 and the housing 1000. In an embodiment, the first pulling yoke 4400 may be disposed at a position facing the first magnet 4100 in the first optical axis (X-axis) direction.

[0120] The first pulling yoke 4400 may be provided on the substrate 9000 . For example, the first coil 4200 may be provided on an inner surface of the substrate 9000 , and the first pulling yoke 4400 may be provided on an outer surface of the substrate 9000 .

[0121] The first magnet 4100 and the first pulling yoke 4400 may generate an attractive force therebetween. For example, the first pulling yoke 4400 may be made of a magnetic material. The attractive force may be generated between the first magnet 4100 and the first pulling yoke 4400 in the first optical axis (X-axis) direction.

[0122] The first ball member B1 may maintain contact with the guide member 3300 and the housing 1000 by attraction generated between the first magnet 4100 and the first pulling yoke 4400 .

[0123] The first guide groove g1 may be formed in the guide member 3300. For example, the first guide groove g1 may be formed in the lower surface of the guide member 3300. In addition, the first guide groove g1 may be formed between the 1-1 magnet and the 1-2 magnet.

[0124] The planar shape of the first guide groove g1 may be circular. For example, the inner wall surface g12 (see Figures 8 to 12 ) may have a curved shape. That is, the inner wall surface g12 of the first guide groove g1 may be curved in a circular path around the center of the first guide groove g1.

[0125] The second guide groove g2 may be formed in the housing 1000. For example, the second guide groove g2 may be formed in the bottom surface of the housing 1000. In addition, the second guide groove g2 may be formed between two coils of the first coil 4200.

[0126] The planar shape of the second guide groove g2 may be circular. For example, the inner wall surface g22 (see Figures 8 to 12 ) may have a curved shape. That is, the inner wall surface g22 of the second guide groove g2 may be curved in a circular path around the center of the second guide groove g2.

[0127] The protrusion RX may extend from the bottom surface g21 of the second guide groove g2 (see FIG. Figures 8 to 12At least a portion of the protrusion RX may protrude outward from the second guide groove g2.

[0128] The first guide groove g1 and the second guide groove g2 may face each other in the first optical axis (X-axis) direction.

[0129] The first ball member B1 may be disposed around the protrusion RX in contact with the protrusion RX, and may be disposed between the first guide groove g1 and the second guide groove g2.

[0130] The guide member 3300 may rotate about the first optical axis (X axis) by the driving force generated by the first driver 4000 , and in this case, the first ball member B1 may roll between the first guide groove g1 and the second guide groove g2 relative to the protrusion RX.

[0131] although Figure 6 and Figure 7 An embodiment is shown in which the first magnet 4100 is disposed on the lower surface of the guide member 3300 , but the position of the first magnet 4100 is not limited thereto.

[0132] For example, the first magnet 4100 may be disposed on a side surface of the guide member 3300. When the first magnet 4100 is configured as one magnet, the first magnet 4100 may be disposed on one side surface of the guide member 3300. When the first magnet 4100 is configured as two magnets (e.g., a 1-1 magnet and a 1-2 magnet), the two magnets may be separately disposed on one side surface and the other side surface of the guide member 3300. The one side surface and the other side surface of the guide member 3300 may be spaced apart from each other in the first axis (Y-axis) direction.

[0133] In this case, a pulling magnet (not shown) facing the first pulling yoke 4400 may be provided on a lower surface of the guide member 3300 .

[0134] In an embodiment, the camera module 1 may sense the position of the guide member 3300. To this end, a sensing magnet 4510 and a first position sensor 4520 may be provided.

[0135] When the guide member 3300 rotates around the first optical axis (X axis) as a rotation axis, the position of the guide member 3300 may be sensed by the sensing magnet 4510 and the first position sensor 4520 .

[0136] The sensing magnet 4510 may be provided on one surface (eg, the lower surface) of the guide member 3300. In addition, the sensing magnet 4510 may be provided at a position spaced apart from the first magnet 4100. For example, the sensing magnet 4510 may be spaced apart from the 1-1 magnet and the 1-2 magnet.

[0137] In an implementation, the sensing magnet 4510 may be spaced apart from the protrusion RX in the second optical axis (Z-axis) direction.

[0138] The sensing magnet 4510 may be magnetized so that one surface (eg, the lower surface) may have both an N pole and an S pole. In an embodiment, one surface of the sensing magnet 4510 may have an N pole, a neutral region, and an S pole sequentially arranged in the first axis (Y axis) direction.

[0139] A virtual line extending from the neutral region of the sensing magnet 4510 in the second optical axis (Z-axis) direction may pass through the protrusion RX.

[0140] Since the camera module 1 includes the sensing magnet 4510 for sensing the position of the guide member 3300, the size of the first coil 4200 facing the first magnet 4100 can be sufficiently increased. Therefore, the magnitude of the driving force generated by the first driver 4000 can be increased.

[0141] The first position sensor 4520 may be positioned so as to be able to sense changes in the position of the sensing magnet 4510. In one embodiment, the sensing magnet 4510 and the first position sensor 4520 may be positioned so as to face each other in the first optical axis (X-axis). In another embodiment, the sensing magnet 4510 and the first position sensor 4520 may be spaced apart in the second optical axis (Z-axis) when viewed in the first optical axis (X-axis).

[0142] The first position sensor 4520 may be provided at a position spaced apart from the first coil 4200. The first position sensor 4520 may be a Hall sensor.

[0143] When power is applied to the first coil 4200, an error (Hall coupling) may occur in the position of the guide member 3300 sensed by the first position sensor 4520 due to the magnetic field of the first coil 4200. However, according to embodiments, since the first position sensor 4520 is spaced apart from the first coil 4200, the camera module 1 can improve the accuracy of sensing the position of the guide member 3300.

[0144] In an implementation, the first position sensor 4520 may be spaced apart from the protrusion RX in the second optical axis (Z-axis) direction.

[0145] A second actuator 5000 may be provided to rotate the bracket 3200. The second actuator 5000 may include a second magnet 5100 and a second coil 5200. The bracket 3200 may be rotated about the first axis (Y axis) by the second actuator 5000. Since the first lens module 2100 is provided on the bracket 3200, the first lens module 2100 may also rotate together with the bracket 3200.

[0146] The second magnet 5100 may be installed on the bracket 3200. For example, the second magnet 5100 may be installed on one side surface of the bracket 3200.

[0147] The second magnet 5100 may be magnetized so that one surface (e.g., the surface facing the second coil 5200) may have both an N pole and an S pole. In an embodiment, the one surface of the second magnet 5100 facing the second coil 5200 may be magnetized with an N pole, a neutral region, and an S pole sequentially arranged in the first optical axis (X-axis) direction.

[0148] The second magnet 5100 may have a shape extending in the first axis (Y axis) direction. For example, the length of the second magnet 5100 in the first axis (Y axis) direction may be longer than the width of the second magnet 5100 in the first optical axis (X axis) direction.

[0149] The second coil 5200 may be provided at a position facing the second magnet 5100. In an embodiment, the second coil 5200 may face the second magnet 5100 in the second optical axis (Z-axis) direction.

[0150] The second coil 5200 may include two coils, and the two coils may be spaced apart from each other in the first axis (Y axis) direction.

[0151] The second coil 5200 may be disposed on the substrate 9000 , and the substrate 9000 may be mounted on the housing 1000 such that the second magnet 5100 and the second coil 5200 may face each other in the second optical axis (Z-axis) direction.

[0152] The housing 1000 may include a through hole passing through the housing 1000 in the second optical axis (Z-axis) direction, and the second coil 5200 may be disposed in the through hole to directly face the second magnet 5100 .

[0153] During optical image stabilization, the second magnet 5100 may be configured as a moving member mounted on the bracket 3200 and rotated together with the bracket 3200 , and the second coil 5200 may be a fixed member fixed to the base plate 9000 .

[0154] When power is applied to the second driver 5000 , the second driver 5000 may generate a driving force to rotate the bracket 3200 about the first axis (Y axis) as a rotation axis. The second driver 5000 may generate a driving force in the direction of the first optical axis (X axis).

[0155] The second ball member B2 may be disposed between the bracket 3200 and the guide member 3300. The second ball member B2 may be disposed between the bracket 3200 and the guide member 3300, and may form a rotation axis of the bracket 3200.

[0156] The second ball member B2 may include a plurality of balls spaced apart from each other in the first axis (Y-axis) direction.

[0157] When viewed in the first axis (Y-axis) direction, a portion of the reflective surface of the reflective member 3100 may overlap with the second ball member B2 .

[0158] A virtual line connecting the plurality of balls of the second ball member B2 to one another in the first axis (Y-axis) direction may pass through the reflective surface of the reflective member 3100 .

[0159] An attractive force may act between the bracket 3200 and the guide member 3300. In an embodiment, the first pulling magnet 5300 may be provided on one of the bracket 3200 and the guide member 3300, and the second pulling yoke 5400 may be provided on the other of the bracket 3200 and the guide member 3300. In another embodiment, the first pulling magnet 5300 may be provided on both the bracket 3200 and the guide member 3300.

[0160] One surface of the first pulling magnet 5300 (eg, a surface facing the second pulling yoke 5400 ) may be magnetized with an N pole, a neutral region, and an S pole sequentially arranged in the first axis (Y axis) direction.

[0161] The first pulling magnet 5300 and the second pulling yoke 5400 may face each other in the second optical axis (Z-axis) direction.

[0162] The first pulling magnet 5300 and the second pulling yoke 5400 may generate an attractive force therebetween. For example, the second pulling yoke 5400 may be made of a magnetic material. An attractive force may be generated between the first pulling magnet 5300 and the second pulling yoke 5400 in the direction of the second optical axis (Z axis).

[0163] The second ball member B2 may maintain contact with the bracket 3200 and the guide member 3300 by an attractive force generated between the first pulling magnet 5300 and the second pulling yoke 5400 .

[0164] The third guide groove g3 and the fourth guide groove g4 may be formed in surfaces of the bracket 3200 and the guide member 3300 facing each other in the second optical axis (Z-axis) direction.

[0165] For example, the third guide groove g3 can be formed in the surface of the bracket 3200 facing the second optical axis (Z axis) direction, and the fourth guide groove g4 can be formed in the surface of the guide member 3300 facing the second optical axis (Z axis) direction and facing the surface of the bracket 3200 in which the third guide groove g3 is formed.

[0166] The second ball member B2 may be disposed between the third guide groove g3 of the bracket 3200 and the fourth guide groove g4 of the guide member 3300 and may form a rotation axis of the bracket 3200 .

[0167] The plurality of balls of the second ball member B2 may make three-point contact with the third guide groove g3 of the bracket 3200 and may make three-point contact with the fourth guide groove g4 of the guide member 3300 .

[0168] In an embodiment, the camera module 1 can detect the position of the bracket 3200. To this end, a second position sensor 5500 can be provided. The second position sensor 5500 can be provided at a position facing the second magnet 5100 in the second optical axis (Z axis) direction. For example, the second position sensor 5500 can be provided between the two coils of the second coil 5200.

[0169] Therefore, when the bracket 3200 rotates with the first axis (Y axis) as a rotation axis, the position of the bracket 3200 may be sensed by the second position sensor 5500 .

[0170] The second position sensor 5500 may be a Hall sensor.

[0171] The reflective module 3000 may further include a stopper 7100. The stopper 7100 may be coupled to the guide member 3300 to cover at least a portion of the bracket 3200. For example, the stopper 7100 may cover at least a portion of the upper surface of the bracket 3200. The stopper 7100 and the bracket 3200 may be spaced apart from each other in the first optical axis (X-axis) direction.

[0172] Since the stopper 7100 is spaced apart from the bracket 3200 , the bracket 3200 may be prevented from being separated from the guide member 3300 due to an external impact without hindering the rotation of the bracket 3200 .

[0173] The buffer member 7200 having elasticity may be coupled to the stopper 7100. The buffer member 7200 may be provided on either or both of one surface and the other surface of the stopper 7100 facing the bracket 3200.

[0174] Figure 8 It shows Figure 2 、 Figure 6 and Figure 7 FIG1 is a diagram of the support structure of the first ball member, and for ease of explanation, is shown in simplified form. Figure 6 and Figure 7 Figure 1 shows a diagram of a guide member and housing. Figure 9 It shows Figure 8 sectional view of a state in which the components shown in FIG are coupled to each other.

[0175] Reference Figure 8 , the first ball member B1 may be disposed between the guide member 3300 and the housing 1000 and may support the rotation of the guide member 3300 .

[0176] The first ball member B1 may include a plurality of balls, and the plurality of balls may be spaced apart from each other in the rotation direction of the guide member 3300 .

[0177] The guide member 3300 may include a first guide groove g1, and the housing 1000 may include a second guide groove g2. The first guide groove g1 and the second guide groove g2 may face each other in the first optical axis (X-axis) direction.

[0178] The first ball member B1 may be disposed between the first guide groove g1 and the second guide groove g2 .

[0179] The protrusion RX may be provided in the first guide groove g1 or the second guide groove g2. For example, the protrusion RX may protrude from the bottom surface g21 of the second guide groove g2 toward the first guide groove g1. The height D1 of the protrusion RX (e.g., its length in the direction of the first optical axis (X axis)) may be less than the diameter D2 of each of the plurality of balls of the first ball member B1.

[0180] In another embodiment, the protrusion RX may also be provided in the first guide groove g1. In this case, the protrusion RX may protrude from the bottom surface g11 of the first guide groove g1 toward the second guide groove g2.

[0181] The plurality of balls of the first ball member B1 may roll while being in contact with the outer surface of the protrusion RX. Therefore, the protrusion RX may form a rotation axis of the guide member 3300.

[0182] In an embodiment, the retainer 3400 may be provided between the first guide groove g1 and the second guide groove g2 and provided to be rotatable relative to the protrusion RX. The retainer 3400 may be used to maintain intervals between the plurality of balls of the first ball member B1.

[0183] The holder 3400 may include a body 3410 and a plurality of support portions 3420 extending from the body 3410 .

[0184] The body 3410 may be in contact with or spaced apart from the upper surface of the protrusion RX. A plurality of support portions 3420 may extend from the body 3410 between the plurality of balls. Therefore, the plurality of support portions 3420 may maintain the intervals between the plurality of balls.

[0185] Either or both of the contact surface of the guide member 3300 and the contact surface of the housing 1000 may be inclined relative to the first optical axis (X axis). The angle between the inclined surface and the first optical axis (X axis) may be an acute angle.

[0186] Reference Figure 9 The inner wall surface g12 of the first guide groove g1 can be inclined relative to the first optical axis (X-axis) and can be curved about the first axis (Y-axis). As shown in FIG9 , the inner wall surface g12 of the first guide groove g1 can extend obliquely from the bottom surface g11 of the first guide groove g1 in a direction away from the first optical axis (X-axis).

[0187] The plurality of balls of the first ball member B1 may make two-point contact with the guide member 3300 and two-point contact with the housing 1000 .

[0188] For example, the plurality of balls of the first ball member B1 may be in contact with the bottom surface g11 of the first guide groove g1 and the inner wall surface g12 of the first guide groove g1.

[0189] The plurality of balls of the first ball member B1 may be in contact with the bottom surface g21 of the second guide groove g2 and the outer surface of the protrusion RX.

[0190] The first ball member B1 may be provided Figure 6 and Figure 7 between the 1-1 magnet and the 1-2 magnet. That is, the plurality of balls of the first ball member B1 can be arranged in an area where an attractive force acts between the first pulling magnetic yoke 4400 and the 1-1 magnet and the 1-2 magnet. In addition, since all the plurality of balls of the first ball member B1 can roll due to the rotation of the guide member 3300, the pressure applied to the plurality of balls of the first ball member B1 can be uniformly maintained.

[0191] Figure 10 It shows Figure 9 FIG. 1 is a diagram of a modified example of .

[0192] Figure 10 The embodiment in FIG. 1 is different from the embodiment in terms of the shape of the protrusion RX and the shape of the first guide groove g1. Figure 9 The implementation methods are different.

[0193] The protrusion RX may have a truncated cone shape having a cross-sectional area that changes in the direction of the first optical axis (X axis). Therefore, the outer surface of the protrusion RX may be inclined with respect to the first optical axis (X axis).

[0194] The inner wall surface g12 of the first guide groove g1 can be parallel to the first optical axis (X axis) and can be curved about the first axis (Y axis). For example, the inner wall surface g12 of the first guide groove g1 can extend from the bottom surface g11 of the first guide groove g1 in the direction of the first optical axis (X axis).

[0195] The plurality of balls of the first ball member B1 may make two-point contact with the guide member 3300 and two-point contact with the housing 1000 .

[0196] For example, the plurality of balls of the first ball member B1 may be in contact with the bottom surface g11 of the first guide groove g1 and the inner wall surface g12 of the first guide groove g1.

[0197] The plurality of balls of the first ball member B1 may be in contact with the bottom surface g21 of the second guide groove g2 and the outer surface of the protrusion RX.

[0198] A lubrication groove og may be formed in the first guide groove g1. For example, the lubrication groove og may be formed in the bottom surface g11 of the first guide groove g1. The lubrication groove og may be formed continuously in the rotation direction of the guide member 3300. Lubricant that facilitates the rolling of the first ball member B1 may be provided in the lubrication groove og.

[0199] A lubrication groove og may also be formed in the second guide groove g2. For example, the lubrication groove og may be formed in the bottom surface g21 of the second guide groove g2. The lubrication groove og may be formed continuously in the rotation direction of the guide member 3300. A lubricant that facilitates the rolling of the first ball member B1 may be provided in the lubrication groove og.

[0200] Figure 11 It shows Figure 8 FIG. 1 is a diagram of a first modified example of FIG.

[0201] exist Figure 11 In the embodiment, a sub-ball member B4 may be provided instead of the retainer 3400. For example, the sub-ball member B4 may be provided between the plurality of balls of the first ball member B1. The sub-ball member B4 may include a plurality of sub-balls.

[0202] The diameter of each of the plurality of sub-balls of the sub-ball member B4 may be smaller than the diameter of each of the plurality of balls of the first ball member B1.

[0203] Therefore, the plurality of sub-balls of the sub-ball member B4 may be in contact with the guide member 3300 or the housing 1000 and may be spaced apart from each other in the rotation direction of the guide member 3300 .

[0204] The intervals between the plurality of balls of the first ball member B1 may be maintained by the plurality of sub-balls of the sub-ball member B4.

[0205] Figure 12 It shows Figure 8 FIG. 1 is a diagram of a second modified example of FIG.

[0206] exist Figure 12 In the embodiment, the barrier wall 1010 may be provided in either or both of the first guide groove g1 and the second guide groove g2.

[0207] For example, the barrier wall 1010 may be provided between the plurality of balls of the first ball member B1 and may protrude from the bottom surface g21 of the second guide groove g2 in the first optical axis (X axis) direction. The height of the barrier wall 1010 in the first optical axis (X axis) direction may be greater than half the diameter of each of the plurality of balls of the first ball member B1.

[0208] Therefore, the plurality of balls of the first ball member B1 can roll in the space defined by the barrier wall 1010 .

[0209] Figures 13 to 15 It shows Figure 6 and Figure 7 FIG. 1 is a diagram of a modified example of the first magnet.

[0210] Reference Figure 13 , the first magnet 4100 may include a 1-1 magnet and a 1-2 magnet. The 1-1 magnet and the 1-2 magnet may be spaced apart from each other in the first axis (Y axis) direction.

[0211] The 1-1 magnet and the 1-2 magnet may be provided in a shape having a length extending in the second optical axis (Z-axis) direction.

[0212] The first ball member B1 may be disposed between the 1-1 magnet and the 1-2 magnet.

[0213] Reference Figure 14 , the first magnet 4100 may include a 1-1 magnet, a 1-2 magnet, and a 1-3 magnet. The 1-1 magnet to the 1-3 magnet may be spaced apart from each other at the vertices of an equilateral triangle.

[0214] The first ball member B1 may be disposed in a space surrounded by the 1-1 to 1-3 magnets.

[0215] Reference Figure 15 The first magnet 4100 may include a 1-1 magnet, a 1-2 magnet, a 1-3 magnet, and a 1-4 magnet. The 1-1 magnet and the 1-2 magnet may be spaced apart from each other in the first axis (Y axis) direction. The 1-3 magnet and the 1-4 magnet may be spaced apart from each other in the second optical axis (Z axis) direction.

[0216] The first ball member B1 may be disposed in a space surrounded by the 1-1 magnet to the 1-4 magnet.

[0217] Figure 16 and Figure 17 It shows Figure 2 The second lens module is Figure 1 A perspective view of the camera module separated from the original.

[0218] Reference Figure 16 and Figure 17 , the second lens module 2200 may be disposed between the reflection module 3000 and the image sensor module 8000 .

[0219] The second lens module 2200 may be movable in the second optical axis (Z-axis) direction for focus adjustment.

[0220] In an embodiment, the second lens module 2200 may include a second lens barrel 2210 and a carrier 2220. A plurality of lenses may be provided in the second lens barrel 2210, and the second lens barrel 2210 may be coupled to the carrier 2220.

[0221] Figure 1 The camera module 1 may include a third driver 6000 to move the second lens module 2200 in the second optical axis (Z-axis) direction.

[0222] The third driver 6000 may include a third magnet 6100 and a third coil 6200. The third magnet 6100 and the third coil 6200 may be disposed to face each other in a direction perpendicular to the second optical axis (Z-axis) direction.

[0223] The third magnet 6100 may be mounted on the second lens module 2200. For example, the third magnet 6100 may be provided on one side surface of the second lens module 2200 (eg, one side surface of the carrier 2220).

[0224] In an embodiment, the second lens module 2200 may include one side surface and another side surface spaced apart from each other in the first axis (Y axis) direction. In addition, the third magnet 6100 may be provided on one side surface of the second lens module 2200 .

[0225] The third magnet 6100 may be magnetized so that one surface (e.g., the surface facing the third coil 6200) may have both an N pole and an S pole. For example, the one surface of the third magnet 6100 facing the third coil 6200 may have an N pole, a neutral region, and an S pole arranged in sequence along the second optical axis (Z axis).

[0226] The third coil 6200 may be disposed to face the third magnet 6100. For example, the third coil 6200 may be disposed to face the third magnet 6100 in a direction perpendicular to the second optical axis (Z axis) direction (eg, the first axis (Y axis) direction).

[0227] The third coil 6200 may be disposed on the substrate 9000 , and the substrate 9000 may be mounted on the housing 1000 such that the third magnet 6100 and the third coil 6200 may face each other in the first axis (Y-axis) direction.

[0228] The housing 1000 may include a through hole passing through the housing 1000 , and the third coil 6200 disposed on the substrate 9000 may directly face the third magnet 6100 through the through hole.

[0229] During focus adjustment, the third magnet 6100 may be configured as a moving member mounted on the second lens module 2200 and moving in the second optical axis (Z axis) direction together with the second lens module 2200 , and the third coil 6200 may be a fixed member fixed to the substrate 9000 .

[0230] When power is applied to the third coil 6200 , the second lens module 2200 may move in the second optical axis (Z-axis) direction by an electromagnetic force generated between the third magnet 6100 and the third coil 6200 .

[0231] The third ball member B3 may be disposed between the second lens module 2200 and the housing 1000 , and the second lens module 2200 may be guided by the third ball member B3 and may move in the second optical axis (Z axis) direction. The third ball member B3 may include a plurality of balls.

[0232] The second pulling magnet 6300 may be provided on the lower surface of the second lens module 2200, and the third pulling yoke 6400 may be provided on the inner bottom surface of the housing 1000. In another embodiment, the second pulling magnet 6300 may be provided on both the second lens module 2200 and the housing 1000.

[0233] The second pulling magnet 6300 may be disposed closer to one side surface of the second lens module 2200. That is, the second pulling magnet 6300 may be disposed closer to one side surface of the second lens module 2200 than to another side surface of the second lens module 2200. In addition, the second pulling magnet 6300 may be disposed between one side surface of the second lens module 2200 and the second optical axis (Z axis).

[0234] The second pulling magnet 6300 and the third pulling yoke 6400 may be disposed to face each other in the first optical axis (X-axis) direction.

[0235] The second pulling magnet 6300 and the third pulling yoke 6400 may generate an attractive force therebetween. For example, the attractive force may act between the second pulling magnet 6300 and the third pulling yoke 6400 in the direction of the first optical axis (X axis).

[0236] The third ball member B3 may maintain contact with the second lens module 2200 and the housing 1000 by an attractive force generated between the second pulling magnet 6300 and the third pulling yoke 6400 .

[0237] A portion of the multiple balls of the third ball component B3 can be set closer to one side surface of the second lens module 2200 than to another side surface of the second lens module 2200, and the remaining portion of the multiple balls of the third ball component B3 can be set closer to another side surface of the second lens module 2200 than to one side surface of the second lens module 2200.

[0238] The number of balls disposed between one side surface of the second lens module 2200 and the second optical axis (Z axis) may be greater than the number of balls disposed between the other side surface of the second lens module 2200 and the second optical axis (Z axis).

[0239] In an embodiment, the third ball member B3 may include three balls. Two of the three balls may be disposed between one side surface of the second lens module 2200 and the second optical axis (Z axis), and another of the three balls may be disposed between the other side surface of the second lens module 2200 and the second optical axis (Z axis).

[0240] The two balls disposed between one side surface of the second lens module 2200 and the second optical axis (Z axis) may be spaced apart from each other in the second optical axis (Z axis) direction.

[0241] The fifth guide groove g5 and the sixth guide groove g6 may be formed in the surface of the second lens module 2200 facing the housing 1000. For example, the fifth guide groove g5 may be formed at one side of the surface of the second lens module 2200 facing the housing 1000, and the sixth guide groove g6 may be formed at the other side of the surface of the second lens module 2200 facing the housing 1000.

[0242] The fifth guide groove g5 and the sixth guide groove g6 may be spaced apart from each other in the first axis (Y-axis) direction.

[0243] The fifth guide groove g5 and the sixth guide groove g6 may extend in a direction parallel to the second optical axis (Z axis).

[0244] A portion of the plurality of balls of the third ball member B3 may be disposed in the fifth guide groove g5 , and the remaining portion of the plurality of balls of the third ball member B3 may be disposed in the sixth guide groove g6 .

[0245] The number of contact points between the portion of the plurality of balls of the third ball member B3 and the fifth guide groove g5 may be greater than the number of contact points between the remaining portion of the plurality of balls of the third ball member B3 and the sixth guide groove g6.

[0246] The fifth guide groove g5 may be disposed closer to one side surface of the second lens module 2200 than the sixth guide groove g6.

[0247] The second pulling magnet 6300 may be disposed closer to the fifth guide groove g5 than to the sixth guide groove g6.

[0248] In an embodiment, the camera module 1 may sense the position of the second lens module 2200. To this end, a third position sensor 6500 may be provided. The third position sensor 6500 may be provided at a position facing the third magnet 6100 of the third driver 6000 in the first axis (Y axis) direction.

[0249] Therefore, when the second lens module 2200 moves in the second optical axis (Z-axis) direction, the position of the second lens module 2200 may be sensed by the third position sensor 6500 .

[0250] The third position sensor 6500 may be a Hall sensor.

[0251] Despite Figures 1 to 17 Although not shown in the figure, at least one lens (hereinafter referred to as a 'calibration lens') may be coupled to the reflective member 3100 of the reflective module 3000. The calibration lens may have positive refractive power.

[0252] In an embodiment, the exit surface of the reflective member 3100 of the reflective module 3000 and the object-side surface of the calibration lens may be combined with each other.

[0253] Therefore, when the reflection module 3000 rotates, the calibration lens may also rotate together with the reflection module 3000 .

[0254] In an embodiment, when a calibration lens having positive refractive power is provided on the exit surface of the reflective member 3100 of the reflective module 3000 , an error in an optical path occurring during optical image stabilization may be compensated, so that a high-quality image may be captured.

[0255] Figure 18 is a perspective view illustrating a camera module according to another embodiment of the present disclosure. Figure 19 It shows Figure 18Exploded perspective view of the camera module. Figure 20 It shows Figure 19 Exploded perspective view of the reflector module. Figure 21 Shown from below Figure 20 An exploded perspective view of the bracket and guide member of the reflective module.

[0256] Reference Figures 18 to 21 , a camera module 2 according to another embodiment may include a first lens module 210 , a reflection module 300 , a second lens module 220 , and a housing 100 .

[0257] The first lens module 210 may include at least one lens and a first lens barrel 211. The at least one lens may have a first optical axis (X axis) and may be mounted on the first lens barrel 211. Figure 20 , the first optical axis (X-axis) can extend in the vertical direction.

[0258] The first lens module 210 may be disposed on the front side of the reflective module 300. The "front side of the reflective module 300" may refer to the positive first optical axis (X-axis) direction (+X-axis direction) relative to the reflective module 300. For example, the first lens module 210 may be disposed above the reflective module 300 in the first optical axis (X-axis) direction.

[0259] The first lens module 210 may be coupled to the reflection module 300. For example, the first lens module 210 may be coupled to the bracket 320 of the reflection module 300.

[0260] The reflection module 300 may include a reflection member 310, and the reflection member 310 may have a reflection surface that reflects the light passing through the first lens module 210. For example, the reflection member 310 may be a prism or a reflector. The reflection member 310 may be coupled to the bracket 320.

[0261] The first lens module 210 and the reflection module 300 may be disposed in the housing 100 .

[0262] In an embodiment, the camera module 2 may further include a second lens module 220. The reflection module 300 may be disposed between the first lens module 210 and the second lens module 220. The second lens module 220 may include a plurality of lenses and a second lens barrel. The plurality of lenses may have a second optical axis (Z axis) and may be mounted on the second lens barrel.

[0263] A first optical axis (X-axis) of the first lens module 210 and a second optical axis (Z-axis) of the second lens module 220 may be perpendicular to each other.

[0264] The first lens module 210 may include one or more lenses, and the second lens module 220 may include a plurality of lenses.

[0265] When viewed along the first optical axis (X-axis), one or more lenses of the first lens module 210 may have a circular shape. When viewed along the second optical axis (Z-axis), at least one of the multiple lenses of the second lens module 220 may have a non-circular shape. For example, the non-circular lens may have different dimensions in two directions perpendicular to the second optical axis (Z-axis) and perpendicular to each other. In an embodiment, the length of the non-circular lens in the first axis (Y-axis), which is perpendicular to both the first optical axis (X-axis) and the second optical axis (Z-axis), may be greater than the width of the non-circular lens in the first optical axis (X-axis).

[0266] Although the camera module 2 includes the first lens module 210 and the second lens module 220 , it is not limited thereto, and the camera module 2 may include only one of the first lens module 210 and the second lens module 220 .

[0267] In an embodiment, the first lens module 210 and the reflective member 310 may be configured to rotate together for optical image stabilization. That is, the first lens module 210 and the reflective member 310 may rotate together about two axes that are perpendicular to each other.

[0268] For example, the first lens module 210 and the reflective member 310 may rotate together around the second optical axis (Z axis) as a rotation axis, and may rotate together around a first axis (Y axis) perpendicular to both the first optical axis (X axis) and the second optical axis (Z axis) as a rotation axis.

[0269] In an embodiment, the second lens module 220 may be movable in the second optical axis (Z-axis) direction for focus adjustment.

[0270] The camera module 2 may further include an image sensor module 800 .

[0271] The image sensor module 800 may include a sensor housing 830 , an image sensor 810 , and a printed circuit board 820 , and may further include an infrared cut filter (not shown).

[0272] An infrared cut filter may be mounted on the sensor housing 830. The infrared cut filter may block light in the infrared region.

[0273] The printed circuit board 820 may be coupled to the sensor housing 830 , and the image sensor 810 may be mounted on the printed circuit board 820 .

[0274] The light passing through the second lens module 220 may be received by the image sensor module 800 (eg, image sensor 810 ).

[0275] The camera module 2 may further include a housing 110. The housing 110 may be coupled to the case 100 to cover an upper portion of the case 100. The housing 110 may include an opening, and the first lens module 210 may be disposed in the opening.

[0276] At least a portion of the first lens module 210 may protrude outward from the housing 100 .

[0277] The reflection module 300 may include a reflection member 310 , a bracket 320 , and a guide member 330 .

[0278] The reflective member 310 may have a reflective surface that reflects the light passing through the first lens module 210. For example, the reflective member 310 may be a prism or a reflective mirror.

[0279] When the reflective member 310 is a prism, the reflective member 310 may have a shape of a rectangular parallelepiped or a cube divided in half in a diagonal direction. The prism may include an incident surface on which light is incident, a reflective surface that reflects the light passing through the incident surface, and an exit surface through which the light reflected from the reflective surface is emitted.

[0280] The reflective member 310 may be mounted on the bracket 320. The first lens module 210 may be provided on the front side of the reflective member 310. In an embodiment, the first lens module 210 may be mounted on the bracket 320.

[0281] The bracket 320 may be provided on the guide member 330 and may be rotatable. In addition, the guide member 330 may be provided on the housing 100 and may be rotatable.

[0282] The guide member 330 can rotate about the second optical axis (Z axis). For example, the guide member 330 can rotate relative to the housing 100 about the second optical axis (Z axis). In this case, the first lens module 210 and the bracket 320 can rotate along with the guide member 330. The second optical axis (Z axis) can also be referred to as the first rotation axis.

[0283] The bracket 320 can rotate about a first axis (Y-axis) perpendicular to both the first optical axis (X-axis) and the second optical axis (Z-axis). For example, the bracket 320 can rotate about the first axis (Y-axis) relative to the guide member 330. In this case, the first lens module 210 can rotate along with the bracket 320. The first axis (Y-axis) can also be referred to as the second rotation axis.

[0284] A first driver 400 may be provided to rotate the reflection module 300. The first driver 400 may include a first magnet 410 and a first coil 420. The guide member 330 may be rotated relative to the housing 100 about the second optical axis (Z axis) by the first driver 400. Since the bracket 320 and the first lens module 210 are disposed on the guide member 330, the bracket 320 and the first lens module 210 may also rotate together with the guide member 330.

[0285] The first magnet 410 may be mounted on the guide member 330. For example, the first magnet 410 may be mounted on the first and second side surfaces of the guide member 330. The first and second side surfaces of the guide member 330 may be spaced apart from each other in the first axis (Y axis) direction.

[0286] The first magnet 410 may be magnetized so that one surface (eg, the surface facing the first coil 420) may have a first polarity and a second polarity. The first polarity and the second polarity may be opposite polarities, and when the first polarity is an N pole, the second polarity may be an S pole.

[0287] In an embodiment, one surface of the first magnet 410 facing the first coil 420 may have first and second polarities arranged in the first optical axis (X-axis) direction, and a neutral region may be provided between the first and second polarities.

[0288] The first coil 420 may be disposed at a position facing the first magnet 410. In an embodiment, the first coil 420 may be disposed to face the first magnet 410 in a first axis (Y axis) direction.

[0289] The first coil 420 may be disposed on the substrate 900 , and the substrate 900 may be mounted on the housing 100 such that the first magnet 410 and the first coil 420 may face each other in the first axis (Y-axis) direction.

[0290] The housing 100 may include a through-hole passing through the housing 100 in the first axis (Y-axis) direction, and the first coil 420 may be disposed in the through-hole and may directly face the first magnet 410 .

[0291] The first coil 420 may include two coils, and the two coils may be spaced apart from each other in the first axis (Y axis) direction.

[0292] During optical image stabilization, the first magnet 410 may be configured as a moving member mounted on the guide member 330 and rotated together with the guide member 330 , and the first coil 420 may be configured as a fixed member fixed to the base plate 900 .

[0293] When power is applied to the first driver 400, the first driver 400 may generate a driving force to rotate the guide member 330 about the second optical axis (Z axis). For example, the first driver 400 may generate a driving force in the direction of the first optical axis (X axis).

[0294] The first ball member B1 may be disposed between the guide member 330 and the housing 100. The first ball member B1 may include a plurality of balls.

[0295] The guide member 330 or the housing 100 may include a protrusion RX. For example, the housing 100 may include the protrusion RX. In an embodiment, the protrusion RX may protrude from the inner surface of the housing 100 in the direction of the second optical axis (Z axis). A virtual line formed by extending the second optical axis (Z axis) of the second lens module 220 may pass through the protrusion RX. The inner surface of the housing 100 may be a plane perpendicular to the second optical axis (Z axis).

[0296] The protrusion RX may form a rotation axis of the guide member 330 .

[0297] The plurality of balls of the first ball member B1 may be disposed around the protrusion RX. For example, the plurality of balls may be in contact with the outer surface of the protrusion RX.

[0298] The height of the protrusion RX (eg, the length of the protrusion RX in the second optical axis (Z-axis) direction) may be smaller than the diameter of each of the plurality of balls of the first ball member B1 .

[0299] An attractive force may act between the guide member 330 and the housing 100. In an embodiment, the first pulling yoke 440 may be disposed at a position facing the first magnet 410 in the second optical axis (Z-axis) direction.

[0300] The first pulling yoke 440 may be disposed on the inner surface of the housing 100. In an embodiment, at least a portion of the first pulling yoke 440 may have a non-linear shape. In other words, the first pulling yoke 440 may have a length in the direction of the first optical axis (X-axis), and at least a portion thereof may be curved. For example, the first pulling yoke 440 may have a zigzag shape.

[0301] The first pulling yoke 440 may include a plurality of first pulling yokes, and the plurality of first pulling yokes of the first pulling yoke 440 may be spaced apart from each other in the first axis (Y-axis) direction.

[0302] The first magnet 410 and the first pulling yoke 440 may generate an attractive force therebetween. For example, the first pulling yoke 440 may be made of a magnetic material. The attractive force may be generated between the first magnet 410 and the first pulling yoke 440 in the second optical axis (Z-axis) direction.

[0303] The first ball member B1 may be maintained in contact with the guide member 330 and the housing 100 by an attractive force generated between the first magnet 410 and the first pulling yoke 440 .

[0304] The first ball member B1 may be disposed between the plurality of first pulling yokes of the first pulling yoke 440. That is, the plurality of balls of the first ball member B1 may be disposed in a region where an attractive force acts between the first pulling yoke 440 and the first magnet 410. Furthermore, since all of the plurality of balls of the first ball member B1 roll due to the rotation of the guide member 330, pressure applied to the plurality of balls of the first ball member B1 may be uniformly maintained.

[0305] The first guide groove g1 may be formed in the guide member 330. For example, the first guide groove g1 may be formed in the third side surface of the guide member 330. The third side surface of the guide member 330 may be perpendicular to the second optical axis (Z axis). In addition, the first guide groove g1 may face the inner surface of the housing 100.

[0306] The planar shape of the first guide groove g1 may be circular. For example, the inner wall surface of the first guide groove g1 may be curved.

[0307] The second guide groove g2 may be formed in the housing 100. For example, the second guide groove g2 may be formed in the inner surface of the housing 100. In addition, the second guide groove g2 may face the first guide groove g1.

[0308] The second guide groove g2 may have a circular planar shape. For example, the inner wall surface of the second guide groove g2 may be curved. Furthermore, a protrusion RX may protrude from the bottom surface of the second guide groove g2 in the direction of the second optical axis (Z axis). At least a portion of the protrusion RX may protrude outward from the second guide groove g2.

[0309] The first guide groove g1 and the second guide groove g2 may face each other in the second optical axis (Z-axis) direction.

[0310] The first ball member B1 may be disposed around the protrusion RX to be in contact with an outer surface of the protrusion RX, and may be disposed between the first guide groove g1 and the second guide groove g2.

[0311] The guide member 330 may rotate about the second optical axis (Z axis) by the driving force generated by the first driver 400 , and in this case, the first ball member B1 may roll between the first guide groove g1 and the second guide groove g2 around the protrusion RX.

[0312] In an embodiment, a retainer, a sub-ball member, or a barrier wall (not shown) may be provided between the first guide groove g1 and the second guide groove g2. The retainer, sub-ball member, or barrier wall may have a function of maintaining intervals between the plurality of balls of the first ball member B1.

[0313] Because the retainer, ball component or barrier wall is Figures 8 to 12 The retainer, sub-ball member, or barrier wall described are the same, so a detailed description thereof is omitted.

[0314] A second actuator 500 may be provided to rotate the bracket 320. The second actuator 500 may include a second magnet 510 and a second coil 520. The bracket 320 may be rotated about the first axis (Y axis) by the second actuator 500. Since the first lens module 210 is provided on the bracket 320, the first lens module 210 may also rotate together with the bracket 320.

[0315] The second magnet 510 may be mounted on the bracket 320. For example, the second magnet 510 may be mounted on a lower surface of the bracket 320.

[0316] The second magnet 510 may be magnetized so that one surface (e.g., the surface facing the second coil 520) may have both an N pole and an S pole. In an embodiment, the one surface of the second magnet 510 facing the second coil 520 may have an N pole, a neutral region, and an S pole arranged in sequence along the second optical axis (Z axis).

[0317] The second magnet 510 may be configured to have a length extending in the first axis (Y axis). For example, the length of the second magnet 510 in the first axis (Y axis) may be longer than the width of the second magnet 510 in the second optical axis (Z axis).

[0318] The second coil 520 may be disposed at a position facing the second magnet 510. In an embodiment, the second coil 520 may be disposed to face the second magnet 510 in the first optical axis (X-axis) direction.

[0319] The second coil 520 may include two coils, and the two coils may be spaced apart from each other in the first axis (Y axis) direction.

[0320] The second coil 520 may be disposed on the substrate 900 , and the substrate 900 may be mounted on the housing 100 such that the second magnet 510 and the second coil 520 may face each other in the first optical axis (X-axis) direction.

[0321] The housing 100 may include a through hole passing through the housing 100 in the first optical axis (X-axis) direction, and the second coil 520 may be disposed in the through hole and may directly face the second magnet 510 .

[0322] During optical image stabilization, the second magnet 510 may be a moving member mounted on the bracket 320 and rotated together with the bracket 320 , and the second coil 520 may be a fixed member fixed to the base plate 900 .

[0323] When power is applied to the second driver 500 , the second driver 500 may generate a driving force to rotate the bracket 320 about the first axis (Y axis) as a rotation axis. The second driver 500 may generate a driving force in the second optical axis (Z axis) direction.

[0324] The second ball member B2 may be disposed between the bracket 320 and the guide member 330. The second ball member B2 may be disposed between the bracket 320 and the guide member 330, and may form a rotation axis of the bracket 320.

[0325] The second ball member B2 may include a plurality of balls spaced apart from each other in the first axis (Y-axis) direction.

[0326] When viewed in the first axis (Y-axis) direction, a portion of the reflective surface of the reflective member 310 may overlap with the second ball member B2 .

[0327] A virtual line connecting the plurality of balls of the second ball member B2 to one another in the first axis (Y-axis) direction may pass through the reflective surface of the reflective member 310 .

[0328] An attractive force may act between the bracket 320 and the guide member 330. In an embodiment, the first pulling magnet 530 may be provided on one of the bracket 320 and the guide member 330, and the second pulling yoke 540 may be provided on the other of the bracket 320 and the guide member 330. In another embodiment, the first pulling magnet 530 may be provided on both the bracket 320 and the guide member 330.

[0329] One surface of the first pulling magnet 530 (eg, a surface facing the second pulling yoke 540 ) may be magnetized with an N pole, a neutral region, and an S pole sequentially arranged in the first optical axis (X-axis) direction.

[0330] The first pulling magnet 530 and the second pulling yoke 540 may face each other in the second optical axis (Z-axis) direction.

[0331] The first pulling magnet 530 and the second pulling yoke 540 may generate an attractive force therebetween. For example, the second pulling yoke 540 may be made of a magnetic material. An attractive force may be generated between the first pulling magnet 530 and the second pulling yoke 540 in the second optical axis (Z-axis) direction.

[0332] The second ball member B2 may maintain contact with the bracket 320 and the guide member 330 by an attractive force generated between the first pulling magnet 530 and the second pulling yoke 540 .

[0333] The third guide groove g3 and the fourth guide groove g4 may be formed in surfaces of the bracket 320 and the guide member 330 facing each other in the second optical axis (Z-axis) direction.

[0334] For example, the third guide groove g3 can be formed in the surface of the bracket 320 facing the second optical axis (Z axis) direction, and the fourth guide groove g4 can be formed in the surface of the guide member 330 facing the second optical axis (Z axis) direction and facing the surface of the bracket 320 in which the third guide groove g3 is formed.

[0335] The second ball member B2 may be disposed between the third guide groove g3 of the bracket 320 and the fourth guide groove g4 of the guide member 330 , and may form a rotation axis of the bracket 320 .

[0336] The plurality of balls of the second ball member B2 may make three-point contact with the third guide groove g3 of the bracket 320 and three-point contact with the fourth guide groove g4 of the guide member 330 .

[0337] The reflective module 300 may further include a first stopper 710. The first stopper 710 may be coupled to the guide member 330 to cover at least a portion of the bracket 320. For example, the first stopper 710 may cover at least a portion of the upper surface of the bracket 320. The first stopper 710 and the bracket 320 may be spaced apart from each other in the first optical axis (X-axis) direction.

[0338] Since the first stopper 710 is spaced apart from the bracket 320 , the bracket 320 may be prevented from being separated from the guide member 330 due to an external impact without hindering the rotation of the bracket 320 .

[0339] A buffer member 720 having elasticity may be coupled to the first stopper 710. The buffer member 720 may be provided on either or both of one surface and the other surface of the first stopper 710 facing the bracket 320.

[0340] The camera module 2 may further include a second stopper 730. The second stopper 730 may be coupled to the housing 100 and may be disposed at a position facing the second lens module 220 in the second optical axis (Z-axis) direction.

[0341] For example, the second stopper 730 may be disposed at a position facing the second lens module 220 in the positive second optical axis (Z-axis) direction and the negative second optical axis (Z-axis) direction.

[0342] A buffer member 740 having elasticity may be coupled to the second stopper 730. For example, the second stopper 730 may have a surface facing the second lens module 220 in the second optical axis (Z axis) direction, and the buffer member 740 may be installed on the surface of the second stopper 730 facing the second lens module 220 in the second optical axis (Z axis) direction.

[0343] The configuration of the second lens module 220, the first position sensor 450, the second position sensor 550, the third ball member B3, a third driver (not shown) for moving the second lens module 220 in the second optical axis (Z axis) direction, and the third position sensor (not shown) may be the same as that of the reference Figures 1 to 17 The configurations of the second lens module 2200 , the first position sensor 4520 , the second position sensor 5500 , the third ball member B3 , the third driver 6000 , and the third position sensor 6500 in the described embodiments are the same, and thus a detailed description thereof is omitted.

[0344] Figure 22 It shows Figure 20 and Figure 21 FIG1 is a diagram showing an example of a support structure of a first ball member shown in FIG1 and is shown in simplified form for ease of explanation. Figure 20 and Figure 21 Figure 1 shows a diagram of a guide member and housing.

[0345] Reference Figure 22 , the first ball member B1 may be disposed between the guide member 330 and the housing 100 , and may support the rotation of the guide member 330 .

[0346] The first ball member B1 may include two sets of multiple balls. For example, the first ball member B1 may include a ball member B11 and a ball member B12, and the ball members B11 and B12 may be arranged in the direction in which the protrusion RX protrudes (e.g., the second optical axis (Z axis) direction). The ball members B11 and B12 may be spaced apart from each other in the direction in which the protrusion RX protrudes (e.g., the second optical axis (Z axis) direction).

[0347] Each of the ball members B11 and B12 may include a plurality of balls disposed around the protrusion RX and spaced apart from each other in the rotation direction of the guide member 330 .

[0348] The diameters of the multiple balls of the ball member B11 and the diameters of the multiple balls of the ball member B12 may be the same.

[0349] The ball members B11 and B12 may be disposed in the first guide groove g1 ( Figure 22 between the second guide groove g2 in the housing 100 (not shown).

[0350] The protrusion RX may be provided in the first guide groove g1 or the second guide groove g2. For example, the protrusion RX may protrude from the bottom surface of the second guide groove g2 toward the first guide groove g1. The height of the protrusion RX (e.g., the length in the direction of the second optical axis (Z axis)) may be greater than the diameter of each ball in the ball member B11, and may be less than twice the diameter of each ball in the ball member B11.

[0351] The plurality of balls of the ball member B11 and the plurality of balls of the ball member B12 may contact the outer surface of the protrusion RX and may roll in the rotation direction of the guide member 330. Therefore, the protrusion RX may form a rotation axis of the guide member 330.

[0352] In an embodiment, a retainer 340 may be provided between the first guide groove g1 and the second guide groove g2. The retainer 340 may be used to maintain intervals between the plurality of balls of the first ball member B1.

[0353] The holder 340 may include a main body 341 and a plurality of support portions 342 extending from the main body 341 in the second optical axis (Z-axis) direction.

[0354] The body 341 may be disposed in contact with or spaced apart from the upper surface of the protrusion RX. A plurality of support portions 342 may extend from the body 341 between the plurality of balls of the ball member B11 and between the plurality of balls of the ball member B12. Thus, the plurality of support portions 342 may maintain the spacing between the plurality of balls of the first ball member B1.

[0355] According to the aforementioned embodiments, the optical module and the camera module including the optical module can improve optical image stabilization performance.

[0356] Although this disclosure includes specific examples, it will be apparent after understanding the present disclosure of this application that various changes in form and detail may be made to these examples without departing from the spirit and scope of the claims and their equivalents. The description of features or aspects in each example should be considered applicable to similar features or aspects in other examples. Appropriate results may still 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 in different ways and / or replaced or supplemented by other components or their equivalents. Therefore, the scope of the disclosure is not limited by the specific embodiments, but is limited by the claims and their equivalents, and all variations within the scope of the claims and their equivalents should be understood to be included in this disclosure.

Claims

1. An optical module, characterized in that The optical module includes: case; a guide member disposed in the housing and configured to be rotatable about a first rotation axis; an optical member configured to be rotatable around the first rotation axis together with the guide member; a first ball member disposed between the housing and the guide member and including a plurality of balls; and a protrusion provided on the housing or the guide member and protruding in the direction of the first rotation axis, wherein the plurality of balls of the first ball member are configured to roll while in contact with an outer surface of the protrusion.

2. The optical module according to claim 1, wherein The plurality of balls of the first ball member are in contact with both the housing and the guide member, and Either or both of a surface of the housing in contact with the plurality of balls and a surface of the guide member in contact with the plurality of balls are inclined with respect to the first rotation axis.

3. The optical module according to claim 1, wherein The protrusion has a truncated cone shape having a cross-sectional area that changes in a direction of the first rotation axis.

4. The optical module according to claim 1, wherein The plurality of balls of the first ball member are in two-point contact with the housing and in two-point contact with the guide member.

5. The optical module according to claim 1, wherein A length of the protrusion in the direction of the first rotation axis is smaller than a diameter of each of the plurality of balls of the first ball member.

6. The optical module according to claim 1, wherein The optical module further includes a holder configured to be rotatable relative to the protrusion. wherein the retainer comprises a main body and a support portion extending from the main body, and The support portion is provided between the plurality of balls of the first ball member.

7. The optical module according to claim 1, wherein: The optical module further includes a sub-ball member including a plurality of sub-balls, wherein a diameter of each sub-ball in the plurality of sub-balls is smaller than a diameter of each ball in the plurality of balls. Wherein, the plurality of sub-balls of the sub-ball member are disposed between the plurality of balls of the first ball member.

8. The optical module according to claim 1, wherein The optical module further includes a first magnet provided on the guide member and including a 1-1 magnet and a 1-2 magnet. wherein the 1-1 magnet and the 1-2 magnet are spaced apart from each other in a direction perpendicular to the direction of the first rotation axis, and The first ball member is disposed between the 1-1 magnet and the 1-2 magnet.

9. The optical module according to claim 8, wherein: The optical module further includes a first coil, which is disposed on the housing and faces one surface of the first magnet. The one surface of the first magnet includes an N pole and an S pole spaced apart from each other in a direction perpendicular to the direction of the first rotation axis.

10. The optical module according to claim 8, wherein The optical module further includes a first pulling yoke disposed on the housing and spaced apart from the first magnet in a direction of the first rotation axis.

11. The optical module according to claim 1, wherein The optical module further comprises a lens module having an optical axis, wherein the optical component is a reflective component comprising a reflective surface configured to reflect light, The lens module is disposed so that light reflected from the reflection member is incident on the lens module in an optical axis direction of the lens module, and The optical module further comprises: a sensing magnet provided on the guide member and spaced apart from the protrusion in the optical axis direction of the lens module, and The first position sensor is disposed on the housing and faces the sensing magnet.

12. The optical module according to claim 1, wherein The optical module further comprises: a bracket on which the optical member is mounted, the bracket being configured to be rotatable relative to the guide member about a second rotation axis perpendicular to the first rotation axis; a second magnet, disposed on the bracket; and The second coil faces the second magnet.

13. The optical module according to claim 12, wherein: The optical module further comprises a lens module having an optical axis, wherein the optical component is a reflective component comprising a reflective surface configured to reflect light, The lens module is disposed so that light reflected from the reflection member is incident on the lens module in an optical axis direction of the lens module, and The optical module further includes a second position sensor provided on the housing and facing the second magnet such that a virtual line formed by extending the optical axis of the lens module passes through the second position sensor.

14. The optical module according to claim 12, wherein: The optical module further includes a second ball member disposed between the bracket and the guide member and including a plurality of balls spaced apart from each other in a direction of the second rotation axis.

15. A camera module, characterized in that The camera module includes: Bracket; a reflective member disposed on the bracket and configured to reflect light; a guide member, the bracket being disposed on the guide member; a housing in which the bracket and the guide member are disposed; a first ball member disposed between the guide member and the housing and including a plurality of balls; and a first lens module having a first optical axis, and light reflected from the reflection member is incident on the first lens module, wherein the guide member is configured to be rotatable together with the bracket around a first rotation axis, The bracket is configured to be rotatable relative to the guide member about a second rotation axis perpendicular to the first rotation axis, One of the housing and the guide member includes a protrusion protruding in the direction of the first rotation axis, and the other of the housing and the guide member includes a guide groove, The plurality of balls of the first ball member are in contact with a surface of the protrusion and a surface of the guide groove, and Either or both of a surface of the protrusion in contact with the plurality of balls of the first ball member and a surface of the guide groove in contact with the plurality of balls of the first ball member are inclined surfaces inclined with respect to the first rotation axis.

16. The camera module according to claim 15, wherein: The camera module further includes a first magnet including two magnets disposed on the guide member. wherein the two magnets of the first magnet are spaced apart from each other in a direction perpendicular to the direction of the first rotation axis, and The camera module further includes a first pulling yoke disposed on the housing and spaced apart from the first magnet in a direction of the first rotation axis.

17. The camera module according to claim 15, wherein: The plurality of balls of the first ball member are in contact with an outer surface of the protrusion, and A diameter of each of the plurality of balls of the first ball member is larger than a length of the protrusion in the direction of the first rotation axis.

18. The camera module according to claim 15, wherein: forming lubrication grooves in either or both of a surface of the housing in contact with the plurality of balls of the first ball member and a surface of the guide member in contact with the plurality of balls of the first ball member, and The camera module further includes a lubricant disposed in the lubrication groove.

19. The camera module according to claim 15, wherein: The camera module further includes a second lens module having a second optical axis and disposed on the bracket such that the second lens module is disposed in front of the reflective member. The first optical axis and the second optical axis are perpendicular to each other.

20. The camera module according to claim 19, wherein: The direction of the first rotation axis is the same as or parallel to the direction of the second optical axis, and The direction of the second rotation axis is perpendicular to both the first optical axis and the second optical axis.

21. The camera module according to claim 19, wherein: The direction of the first rotation axis is the same as or parallel to the direction of the first optical axis, and The direction of the second rotation axis is perpendicular to both the first optical axis and the second optical axis.

22. An optical module, characterized in that The optical module includes: a housing; and a reflection module, disposed in the housing and configured to be rotatable relative to the housing around a first rotation axis, wherein a first guide groove is formed in a surface of the reflection module facing the housing, the first guide groove having a circular planar shape centered on the first rotation axis, forming a second guide groove in a surface of the housing facing the surface of the reflection module on which the first guide groove is formed, the second guide groove having a circular planar shape centered on the first rotation axis, The optical module further includes a first ball member including a plurality of balls disposed between the first guide groove and the second guide groove, and The plurality of balls of the first ball member are equally spaced apart from each other in a circumferential direction around the first rotation axis and are configured to roll in the circumferential direction while the reflection module rotates relative to the housing.

23. The optical module according to claim 22, wherein: The optical module further includes a protrusion having a circular planar shape centered on the first rotation axis and provided in either or both of the first guide groove and the second guide groove. Wherein, the multiple balls of the first ball member are arranged between the outer surface of the protrusion and the inner wall surface of the first guide groove or the inner wall surface of the second guide groove, and are also configured to roll in the circumferential direction while contacting the outer surface of the protrusion when the reflection module rotates relative to the shell.

24. The optical module according to claim 22, wherein: The optical module further includes a holder including a main body and a plurality of support portions extending from the main body in the direction of the first rotation axis. The retainer is disposed between the first guide groove and the second guide groove such that the plurality of support portions are disposed between the plurality of balls of the first ball member.

25. The optical module according to claim 24, wherein: The plurality of balls of the first ball member includes a first plurality of balls and a second plurality of balls, and The first plurality of balls and the second plurality of balls are spaced apart from each other in a direction of the first rotation axis.

26. The optical module according to claim 22, wherein: The optical module further includes a sub-ball member including a plurality of sub-balls disposed between the plurality of balls of the first ball member.

27. The optical module according to claim 22, wherein: The optical module further includes a barrier wall provided in either or both of the first guide groove and the second guide groove and provided between the plurality of balls of the first ball member.

28. The optical module according to claim 22, wherein: The reflection module includes: a guide member disposed in the housing and configured to be rotatable relative to the housing about the first rotation axis; a bracket provided in the guide member and configured to be rotatable together with the guide member relative to the housing about the first rotation axis and rotatable relative to the guide member about a second rotation axis perpendicular to the first rotation axis; and a reflective member provided in the bracket and configured to be rotatable relative to the housing together with the bracket and the guide member about the first rotation axis, and to be rotatable relative to the guide member together with the bracket about the second rotation axis, Here, the first guide groove is formed in a surface of the guide member facing the surface of the housing on which the second guide groove is formed.

29. An optical module, characterized in that The optical module includes: case; a reflection module disposed in the housing and configured to be rotatable relative to the housing around a first rotation axis; a first coil, disposed on a surface of the housing facing the reflection module; a first magnet provided on a surface of the reflection module facing the surface of the housing on which the first coil is provided, such that the first magnet faces the first coil; and a first ball member including a plurality of balls disposed between the surface of the housing on which the first coil is disposed and the surface of the reflection module on which the first magnet is disposed, wherein the first coil and the first magnet are configured to cause the reflection module to rotate relative to the housing around the first rotation axis, and The plurality of balls of the first ball member are equally spaced apart from each other in a circumferential direction around the first rotation axis and are configured to roll in the circumferential direction while the reflection module rotates relative to the housing.

30. The optical module according to claim 29, wherein The first magnet includes two magnets provided on opposite sides of the plurality of balls of the first ball member in a direction perpendicular to the first rotation axis, and The first coil includes two coils facing the two magnets of the first magnet.

31. The optical module according to claim 29, wherein forming a first guide groove in the surface of the reflection module on which the first magnet is provided, the first guide groove having a circular planar shape centered on the first rotation axis, forming a second guide groove in the surface of the housing on which the first coil is provided, the second guide groove having a circular planar shape centered on the first rotation axis, and The plurality of balls of the first ball member are disposed between the first guide groove and the second guide groove.

32. The optical module according to claim 31, wherein The optical module further includes a protrusion having a circular planar shape centered on the first rotation axis and provided in either or both of the first guide groove and the second guide groove. Wherein, the multiple balls of the first ball member are arranged between the outer surface of the protrusion and the inner wall surface of the first guide groove or the inner wall surface of the second guide groove, and are also configured to roll in the circumferential direction while contacting the outer surface of the protrusion when the reflection module rotates relative to the shell.

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