Reflection module and camera module

Abstract

The utility model relates to a reflective module and a camera module. The reflection module includes: a first lens module having a first optical axis; a bracket on which the reflective member is disposed to reflect light passing through the first lens module; a guide member on which the bracket is provided; a housing accommodating the holder and the guide member; a first ball member disposed between the guide member and the housing and including a plurality of balls spaced apart in a direction of a first rotation axis perpendicular to the first optical axis; and a second ball member disposed between the bracket and the guide member and including a plurality of balls spaced apart in a direction of a second rotation axis perpendicular to both the first optical axis and the first rotation axis. The guide member is configured to rotate together with the first lens module and the bracket about a first rotation axis. The bracket is configured to rotate together with the first lens module about a second rotation axis. The reflective member is disposed between the plurality of balls of the first ball member.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of priority from Korean Patent Application No. 10-2023-0171679 filed on November 30, 2023, in the Korean Intellectual Property Office, and Korean Patent Application No. 10-2024-0057099 filed on April 29, 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 a reflective module and includes a reflective module and a camera module. Background Art

[0004] For example, camera modules used in mobile devices can bend the path of light by placing a reflective member in front of the lens module. Because the diameter of the lens in the lens module affects the thickness of the mobile device, such camera modules may have limitations in increasing the diameter of the lens. Consequently, it may be difficult to reduce the F-number of the camera module.

[0005] Therefore, a structure in which some lenses are provided in front of a reflective member has been proposed.

[0006] The camera module also features a shake correction function that corrects for camera shake during shooting to improve resolution. This shake correction function can be achieved through biaxial rotation of the reflective member. In this case, the biaxial rotation can be achieved through pitch and yaw rotation. Here, when the lens is positioned in front of the reflective member, the lens can rotate along with the reflective member.

[0007] Here, the pitch rotation axis and the yaw rotation axis mean two axes that are perpendicular to the optical axis of the lens provided behind the reflection member and are perpendicular to each other.

[0008] For example, rotation based on the yaw axis can be achieved by rotating the reflective member using the direction in which light is incident on the reflective member as the rotation axis, and rotation based on the pitch axis can be achieved by rotating the yaw axis and a lens disposed behind the reflective member. Rotation can be achieved by rotating the reflective member using an axis perpendicular to the optical axis as the rotation axis.

[0009] Here, when the reflective member deflects and rotates, an error may occur in the change in the expected optical path length.

[0010] The reason is that, in the case of the yaw rotation among the two-axis rotations, the apparent position change of the lens provided in front of the reflective member before and after the yaw rotation may not be significant.

[0011] Therefore, when correcting shake in the yaw direction, there may be a problem that large aberration may occur, and resolution may deteriorate.

[0012] The above information is presented as background information only to assist in understanding the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above content may be applicable as prior art with respect to the present disclosure. Utility Model Content

[0013] This summary is provided to introduce a selection of concepts in a simplified form that are further described in the following detailed description. 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.

[0014] In one general aspect, a reflection module includes: a first lens module having a first optical axis; a bracket on which a reflective member is disposed to reflect light passing through the first lens module; a guide member on which the bracket is disposed; a housing that houses the bracket and the guide member; a first ball member disposed between the guide member and the housing and including a plurality of balls spaced apart in the direction of a first rotation axis perpendicular to the first optical axis; and a second ball member disposed between the bracket and the guide member and including a plurality of balls spaced apart in the direction of a second rotation axis perpendicular to both the first optical axis and the first rotation axis. The guide member is configured to rotate with the first lens module and the bracket about the first rotation axis. The bracket is configured to rotate with the first lens module about the second rotation axis. The reflective member is disposed between the plurality of balls of the first ball member.

[0015] The guide member may be provided with a first guide groove, and the housing may be provided with a second guide groove, and the first guide groove and the second guide groove may face each other in the direction of the first optical axis. The first ball member may be provided between the first guide groove and the second guide groove. The total number of contact points between some of the plurality of balls of the first ball member and the first guide groove and the second guide groove may be different from the total number of contact points between other of the plurality of balls of the first ball member and the first guide groove and the second guide groove.

[0016] The bracket may be provided with a third guide groove, and the guide member may be provided with a fourth guide groove, and the third guide groove and the fourth guide groove may face each other in the direction of the first optical axis. The second ball member may be provided between the third guide groove and the fourth guide groove. The total number of contact points between some of the plurality of balls of the second ball member and the third guide groove and the fourth guide groove may be different from the total number of contact points between other of the plurality of balls of the second ball member and the third guide groove and the fourth guide groove.

[0017] The reflection module may further include a first drive unit including a first magnet disposed on the guide member and a first coil disposed to face the first magnet in the direction of the first optical axis. A surface of the first magnet facing the first coil may have an N pole, a neutral region, and an S pole in the direction of the second rotation axis.

[0018] A virtual line connecting the plurality of balls of the first ball member in the direction of the first rotation axis may be offset from the first magnet in the direction of the first optical axis.

[0019] A first pulling yoke spaced apart from the first magnet in a direction of the first optical axis may be provided in the housing.

[0020] A first pulling magnet may be provided on one of the bracket and the guide member, and a second pulling yoke may be provided on the other of the bracket and the guide member. The first pulling magnet and the second pulling yoke may face each other in the direction of the first optical axis. One surface of the first pulling magnet facing the second pulling yoke may have an N pole, a neutral region, and an S pole in the direction of the second rotation axis.

[0021] A length of the second pulling yoke in the direction of the first rotation axis may be greater than a length of the first pulling magnet in the direction of the first rotation axis.

[0022] The first pulling magnet and the second pulling yoke may be disposed between the plurality of balls of the second ball member.

[0023] The reflection module may further include a second drive unit including a second magnet disposed on a bracket and a second coil disposed to face the second magnet in the direction of the first rotation axis. A surface of the second magnet facing the second coil may have an N pole, a neutral region, and an S pole along the first optical axis.

[0024] A virtual line connecting the plurality of balls of the second ball member in the direction of the second rotation axis may be offset from the second magnet in the direction of the first rotation axis.

[0025] The first stopper coupled to the housing may cover at least a portion of an upper surface of the bracket. A buffer member may be provided on at least one surface of the first stopper and the bracket facing each other in the direction of the first optical axis.

[0026] The second stopper may be coupled to the guide member. The bracket may have a receiving portion in which a portion of the second stopper is disposed. The portion of the second stopper may have a surface facing the receiving portion in the direction of the first optical axis.

[0027] In another general aspect, a camera module includes: a guide member disposed in a housing to rotate about a first rotation axis; a bracket disposed on the guide member to rotate relative to the guide member about a second rotation axis perpendicular to the first rotation axis, and a reflective member disposed on the bracket; a first ball member disposed between the guide member and the housing; a second ball member disposed between the bracket and the guide member; a first lens module disposed on the bracket and having a first optical axis perpendicular to both the first rotation axis and the second rotation axis; and a second lens module into which light reflected from the reflective member is incident and having a second optical axis. The first rotation axis is perpendicular to both the first optical axis and the second optical axis.

[0028] The camera module may further include an image sensor configured to receive light passing through the second lens module. The image sensor may have an imaging surface tilted relative to the second optical axis.

[0029] The camera module may further include: a first drive unit including a first magnet disposed on the guide member and a first coil disposed to face the first magnet in the direction of the first optical axis; and a second drive unit including a second magnet disposed on the bracket and a second coil disposed to face the second magnet in the direction of the first rotation axis. The first ball member may include a plurality of balls spaced apart in the direction of the first rotation axis. The second ball member may include a plurality of balls spaced apart in the direction of the second rotation axis.

[0030] A first pulling yoke spaced apart from the first magnet in the direction of the first optical axis may be provided in the housing. The first pulling magnet may be provided on one of the bracket and the guide member, and a second pulling yoke facing the first pulling magnet in the direction of the first optical axis may be provided on the other of the bracket and the guide member. The first pulling magnet and the second pulling yoke may be provided between the plurality of balls of the second ball member.

[0031] Other features and aspects will be apparent from the following detailed description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a perspective view of a camera module according to an embodiment of the present disclosure.

[0033] Figure 2 is a partially cutaway perspective view of a camera module according to an embodiment of the present disclosure.

[0034] Figure 3 is a cross-sectional view of a camera module according to an embodiment of the present disclosure.

[0035] Figure 4 is an exploded perspective view of a camera module according to an embodiment of the present disclosure.

[0036] Figure 5 Looking in the other direction Figure 4 view.

[0037] Figure 6 is a perspective view of a first lens module and a first reflection module according to an embodiment of the present disclosure.

[0038] Figure 7 Looking in the other direction Figure 6 view.

[0039] Figure 8 is a bottom perspective view of a first lens module and a bracket according to an embodiment of the present disclosure.

[0040] Figure 9 is an exploded perspective view of a bracket and a guide member according to an embodiment of the present disclosure.

[0041] Figure 10 is a partially cutaway perspective view of a housing according to an embodiment of the present disclosure.

[0042] Figure 11 is a plan view of a housing according to an embodiment of the present disclosure.

[0043] Figure 12 is a diagram illustrating a first lens module, a bracket, and a reflection member rotating around a second rotation axis.

[0044] Figure 13 is a diagram illustrating a first lens module, a bracket, a reflecting member, and a guide member rotating around a first rotation axis.

[0045] Figure 14 is an exploded perspective view illustrating a separate second lens module in a camera module according to an embodiment of the present disclosure.

[0046] Figure 15 is a bottom stereoscopic view of the second lens module.

[0047] Figure 16 is an exploded perspective view illustrating a separate image sensor module in a camera module according to an embodiment of the present disclosure.

[0048] Figure 17 is a perspective view of a reflective member of a first reflective module according to another embodiment of the present disclosure.

[0049] Figure 18 is an exploded perspective view illustrating separate second and third lens modules in a camera module according to another embodiment of the present disclosure.

[0050] Throughout the drawings and detailed description, unless otherwise described, the same reference numerals refer to the same elements. For 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

[0051] Hereinafter, although examples of the present disclosure will be described in detail with reference to the accompanying drawings, it is noted that the examples are not limited thereto.

[0052] The following detailed description is provided to help the reader gain a comprehensive understanding of the methods, devices, and / or systems described herein. However, various variations, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent upon understanding the present disclosure. For example, the order of operations described herein is merely an example and is not limited to the order set forth herein, but may be changed as will be apparent upon understanding the present disclosure, except for operations that must occur in a certain order. In addition, descriptions of features known in the art may be omitted for clarity and brevity.

[0053] The features described herein may be implemented in different forms and are not to 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 present disclosure.

[0054] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being “on,” “connected to,” or “coupled to” another element, it may be directly “on,” directly “connected to,” or directly “coupled to” the other element, or one or more other elements may be present between them. In contrast, 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 them.

[0055] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more of the associated listed items; similarly, "at least one of..." includes any one of the associated listed items and any combination of any two or more of the associated listed items.

[0056] 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. Instead, these terms are used solely to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Thus, a first member, first component, first region, first layer, or first portion mentioned in the examples described herein may also be referred to as a second member, second component, second region, second layer, or second portion without departing from the teachings of the examples.

[0057] For ease of description, spatially relative terms such as "above," "upper," "below," "lower," etc. may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. In addition to the orientation depicted in the accompanying drawings, such spatially relative terms are intended to also include 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 "upper" relative to another element will then be "below" or "lower" relative to the other element. Thus, the term "above" includes 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 will be interpreted accordingly.

[0058] The terms used herein are only used to describe various examples and are not intended to limit the present disclosure. The terms "a", "an", and "the" are intended to include plural forms as well, unless the context clearly indicates otherwise. The terms "include", "comprising", and "having" specify the presence of 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.

[0059] Due to manufacturing techniques and / or tolerances, the shapes shown in the drawings may vary. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shape that occur during manufacturing.

[0060] In this document, it is noted that the use of the term “may” with respect to an example, for example with respect to what an example may include or implement, means that there is at least one example that includes or implements this feature, and all examples and implementations are not limited thereto.

[0061] As will be apparent after understanding this disclosure, the features of the examples described herein may be combined in various ways. In addition, although the examples described herein have multiple configurations, other configurations are also possible, as will be apparent after understanding this disclosure.

[0062] The present disclosure relates to a camera module that can be mounted on a portable electronic device such as a mobile communication terminal, a smartphone, or a tablet PC.

[0063] An aspect of the present disclosure is to provide a reflective module that can prevent resolution degradation during shake correction and a camera module including the reflective module.

[0064] According to another aspect of the present disclosure, a reflective module and a camera module including the reflective module can prevent resolution degradation during shake correction.

[0065] Figure 1 is a stereogram of a camera module; Figure 2 A partially cutaway perspective view of a camera module; and Figure 3 is a cross-sectional view of a camera module according to an embodiment of the present disclosure.

[0066] Reference Figures 1 to 3 , the camera module 1 may include a first lens module 210 , a first reflection module 300 and a housing 100 .

[0067] The first lens module 210 includes at least one lens and may have a first optical axis (Y axis). Figure 3 In terms of the optical axis, the first optical axis (Y axis) may extend in the up-down direction.

[0068] In an embodiment, the first lens module 210 may include a first lens barrel 211 and a first lens holder 212. At least one lens is disposed in the first lens barrel 211, and the first lens barrel 211 may be combined with the first lens holder 212.

[0069] The first lens module 210 may be disposed in front of the first reflective module 300. Here, "front" may mean in the positive first optical axis (Y axis) direction (+Y axis direction) relative to the first reflective module 300. For example, the first lens module 210 may be disposed higher than the first reflective module 300 in the direction of the first optical axis (Y axis).

[0070] The first lens module 210 may be combined with the first reflection module 300. For example, the first lens holder 212 of the first lens module 210 may be coupled to the holder 330 of the first reflection module 300.

[0071] The first lens module 210 and the first reflection module 300 are disposed in the housing 100 .

[0072] In an embodiment, the camera module 1 may further include a second lens module 220. The first reflection module 300 is disposed between the first lens module 210 and the second lens module 220. The second lens module 220 includes a plurality of lenses, and the plurality of lenses are arranged along the second optical axis (Z axis).

[0073] A first optical axis (Y axis) of the first lens module 210 and a second optical axis (Z axis) of the second lens module 220 may be formed to be perpendicular to each other.

[0074] The first lens module 210 includes one or more lenses, and the second lens module 220 includes a plurality of lenses.

[0075] When viewed in the direction of the first optical axis (Y axis), one or more lenses of the first lens module 210 may be circular. When viewed in the direction of the second optical axis (Z axis), at least one of the multiple lenses of the second lens module 220 may be non-circular. For example, a non-circular lens may have different lengths 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 (X axis) perpendicular to both the first optical axis (Y axis) and the second optical axis (Z axis) may be greater than the length in the first optical axis (Y axis).

[0076] The first lens module 210 and the first reflection module 300 can be configured to rotate together for shake correction. The second lens module 220 can move in the direction of the second optical axis (Z axis) for focus adjustment.

[0077] The camera module 1 may further include an image sensor module 800 .

[0078] like Figure 16 As shown in , the image sensor module 800 includes a sensor housing 830 , an image sensor 810 , a printed circuit board 820 , and may further include an infrared cut filter 850 .

[0079] The infrared cut filter 850 may be mounted on the sensor housing 830. The infrared cut filter 850 serves to block light in an infrared region among the light passing through the second lens module 220.

[0080] The printed circuit board 820 is coupled to the sensor housing 830 , and the image sensor 810 is disposed on the printed circuit board 820 .

[0081] The light passing through the second lens module 220 is received by the image sensor module 800 (eg, image sensor 810 ).

[0082] The camera module 1 may further include a first light shielding plate 130. The first light shielding plate 130 is provided in the housing 100 and serves to prevent a flare phenomenon from occurring due to unintentional reflection of light within the housing 100.

[0083] The first light shielding plate 130 may be disposed in a space between the second lens module 220 and the image sensor module 800. In addition, the first light shielding plate 130 may be disposed closer to the image sensor module 800 than the second lens module 220.

[0084] Therefore, even if unintentional reflection of light occurs in the housing 100 , the first light shielding plate 130 can prevent the diffusely reflected light from entering the image sensor 810 , thereby suppressing the flare phenomenon.

[0085] The camera module 1 may further include a second reflection module 340. The second reflection module 340 is disposed between the second lens module 220 and the image sensor module 800. In addition, the second reflection module 340 may be disposed between the first light shielding plate 130 and the image sensor module 800.

[0086] The second reflection module 340 may have one or more reflection surfaces. Since the light passing through the second lens module 220 is reflected one or more times by the second reflection module 340 and enters the image sensor 810, a long light path may be formed within a limited space.

[0087] In an embodiment, the second reflective module 340 may have a triangular prism shape. The second reflective module 340 may include an incident surface 341 on which light is incident, a first reflective surface 342 that reflects the light passing through the incident surface 341, a second reflective surface 343 that reflects the light reflected from the first reflective surface 342, and an exit surface 344 from which the light reflected from the second reflective surface 343 may exit. The light passing through the exit surface 344 may be incident on the image sensor 810.

[0088] The camera module 1 may further include a housing 110. The housing 110 is coupled to the case 100 to cover an upper portion of the case 100. The housing 110 has an opening, and the first lens module 210 may be disposed in the opening.

[0089] On the other hand, at least a portion of the first lens module 210 may be provided to protrude to the outside of the housing 100 and the casing 110 .

[0090] Figure 4 is an exploded perspective view of a camera module according to an embodiment of the present disclosure, and Figure 5 Looking in the other direction Figure 4 view.

[0091] in addition, Figure 6is a perspective view of a first lens module and a first reflection module according to an embodiment of the present disclosure. Figure 7 Looking in the other direction Figure 6 view.

[0092] in addition, Figure 8 It is a bottom stereoscopic view of the first lens module and the bracket. Figure 9 is an exploded perspective view of a bracket and a guide member according to an embodiment of the present disclosure.

[0093] also, Figure 10 It is a partially cutaway perspective view of the shell. Figure 11 is a plan view of a housing according to an embodiment of the present disclosure. Figure 12 is a diagram illustrating a first lens module, a bracket, and a reflection member rotating around a second rotation axis. Figure 13 is a diagram illustrating a first lens module, a bracket, a reflecting member, and a guide member rotating around a first rotation axis.

[0094] Reference Figures 4 to 11 , the first reflection module 300 includes a reflection member 310 , a bracket 330 and a guide member 320 .

[0095] The reflective member 310 has a reflective surface that reflects the light that has passed through the first lens module 210. For example, the reflective member 310 may be a reflective mirror, and preferably a prism.

[0096] When the reflective member 310 is a prism, the reflective member 310 may be in the form of a rectangular parallelepiped or a cube diagonally divided into two parts. The prism may include an incident surface through which light is incident, a reflective surface through which light passing through the incident surface is reflected, and an exit surface through which light reflected from the reflective surface is exited.

[0097] The reflective member 310 is mounted on the bracket 330. The first lens module 210 may be disposed in front of the reflective member 310. In an embodiment, the first lens module 210 may be mounted on the bracket 330.

[0098] The bracket 330 is rotatably provided on the guide member 320. The guide member 320 is rotatably provided in the housing 100.

[0099] The guide member 320 can rotate using a first axis (X-axis) perpendicular to both the first optical axis (Y-axis) and the second optical axis (Z-axis) as a rotation axis. For example, the guide member 320 can rotate relative to the housing 100 using the first axis (X-axis) as a rotation axis. The first lens module 210 and the bracket 330 can also rotate together with the guide member 320. On the other hand, the first axis (X-axis) can also be referred to as a first rotation axis.

[0100] The bracket 330 can rotate using a second optical axis (Z axis) perpendicular to the first axis (X axis) as a rotation axis. For example, the bracket 330 can rotate relative to the guide member 320 using the second optical axis (Z axis) as a rotation axis. The first lens module 210 can rotate together with the bracket 330. On the other hand, the second optical axis (Z axis) can also be referred to as a second rotation axis.

[0101] A first driving unit 400 may be provided to rotate the first reflection module 300. The first driving unit 400 includes a first magnet 410 and a first coil 420. Through the first driving unit 400, the guide member 320 may rotate relative to the housing 100 around the first axis (X axis). Since the bracket 330 and the first lens module 210 are provided on the guide member 320, the bracket 330 and the first lens module 210 may also rotate together with the guide member 320 (see FIG. Figure 13 ).

[0102] The first magnet 410 may be mounted on the guide member 320. As an example, the first magnet 410 may be mounted on one surface of the guide member 320. The one surface of the guide member 320 may refer to a surface facing the housing 100 in the first optical axis (Y-axis) direction. For example, the one surface of the guide member 320 may be the lower surface of the guide member 320.

[0103] The first magnet 410 may be magnetized so that one surface (e.g., the surface facing the first coil 420) may have both an N pole and an S pole. In an embodiment, the one surface of the first magnet 410 facing the first coil 420 may be sequentially provided with an N pole, a neutral region, and an S pole in the second optical axis (Z axis) direction.

[0104] The first coil 420 may be provided at a position facing the first magnet 410. In an embodiment, the first coil 420 may be arranged to face the first magnet 410 in the first optical axis (Y-axis) direction.

[0105] The first coil 420 is provided on the substrate 900 , and the substrate 900 is mounted on the housing 100 such that the first magnet 410 and the first coil 420 face each other in the first optical axis (Y-axis) direction.

[0106] The housing 100 is provided with a through hole penetrating the housing 100 in the first optical axis (Y-axis) direction, and the first coil 420 is provided in the through hole so as to directly face the first magnet 410 .

[0107] During shake correction, the first magnet 410 is a moving member mounted on the guide member 320 and rotated together with the guide member 320 , and the first coil 420 is a fixed member fixed to the base plate 900 .

[0108] When power is supplied to the first driving unit 400, the first driving unit 400 can generate driving force required to rotate the guide member 320 around the first axis (X axis) as the rotation axis. For example, the first driving unit 400 can generate driving force in the direction of the second optical axis (Z axis).

[0109] The first ball member B1 may be disposed between the guide member 320 and the housing 100. The first ball member B1 may be disposed between the guide member 320 and the housing 100 to form a rotation axis of the guide member 320.

[0110] The first ball member B1 may include a plurality of balls spaced apart in the first axis (X axis) direction. A virtual line connecting the plurality of balls of the first ball member B1 in the first axis (X axis) direction may be spaced apart from or offset from the first magnet 410 in the first optical axis (Y axis) direction.

[0111] In an embodiment, the first magnet 410 and the first coil 420 may be spaced apart from the first ball member B1 in the direction of the first optical axis (Y axis). When a driving force is generated in the direction of the second optical axis (Z axis) by the first magnet 410 and the first coil 420, the guide member 320 may rotate around the rotation axis formed by the first ball member B1.

[0112] A virtual line connecting the plurality of balls of the first ball member B1 in the first axis (X axis) direction may pass through the reflective surface of the reflective member 310. The reflective member 310 may be disposed between the plurality of balls of the first ball member B1.

[0113] In an embodiment, when viewed in the first axis (X axis), a line extending the first optical axis (Y axis) of the first lens module 210 may be disposed between the ends of the plurality of balls of the first ball member B1. Here, the ends of the plurality of balls of the first ball member B1 may refer to the ends in the second optical axis (Z axis) direction.

[0114] An attractive force may act between the guide member 320 and the housing 100. In an embodiment, the first pulling yoke 430 may be disposed at a position facing the first magnet 410 in the first optical axis (Y-axis) direction.

[0115] The first pulling yoke 430 may be disposed on the substrate 900 . For example, the first coil 420 may be disposed on an inner surface of the substrate 900 , and the first pulling yoke 430 may be disposed on an outer surface of the substrate 900 .

[0116] The first magnet 410 and the first pulling yoke 430 may generate an attractive force between each other. For example, the first pulling yoke 430 may be formed of a magnetic material. The attractive force acts between the first magnet 410 and the first pulling yoke 430 in the direction of the first optical axis (Y axis).

[0117] Due to the attractive force between the first magnet 410 and the first pulling yoke 430 , the first ball member B1 may maintain contact with the guide member 320 and the housing 100 .

[0118] The first guide groove g1 and the second guide groove g2 may be provided on surfaces of the housing 100 and the guide member 320 that face each other (e.g., surfaces that face each other in the first optical axis (Y-axis) direction). For example, the first guide groove g1 may be provided in the housing 100, and the second guide groove g2 may be provided in the guide member 320. The first guide groove g1 and the second guide groove g2 may face each other in the first optical axis (Y-axis) direction.

[0119] The first guide groove g1 may include a plurality of grooves spaced apart in the first axis (X axis) direction, and the second guide groove g2 may include a plurality of grooves spaced apart in the first axis (X axis) direction.

[0120] The first ball member B1 may be disposed between the first guide groove g1 and the second guide groove g2 to form a rotation axis of the guide member 320 .

[0121] One of the plurality of grooves of the first guide groove g1 may make three-point contact with the first ball member B1, and another of the plurality of grooves of the first guide groove g1 may make two-point contact with the first ball member B1. Figure 11 , the groove located on the left side of the plurality of grooves of the first guide groove g1 may contact the first ball member B1 at three points, and the groove located on the right side of the plurality of grooves of the first guide groove g1 may contact the first ball member B1 at two points.

[0122] In addition, each of the plurality of grooves of the second guide groove g2 can be in contact with the first ball member B1 at three points. It is also possible to interchange the shape of the first guide groove g1 and the shape of the second guide groove g2.

[0123] In an embodiment, the camera module 1 can detect the position of the guide member 320. To this end, a first position sensor 450 is provided. The first position sensor 450 can be provided at a position facing the first magnet 410 of the first driving unit 400 (for example, at a position facing in the first optical axis (Y axis) direction).

[0124] Therefore, when the guide member 320 rotates around the first axis (X axis), the position of the guide member 320 may be detected by the first position sensor 450 .

[0125] The first position sensor 450 may be a Hall sensor. The first position sensor 450 may include two Hall sensors that may be spaced apart in the first axis (X axis) direction. For example, the two Hall sensors may be spaced apart on one side and the other side of the first coil 420.

[0126] In the housing 100, a through hole penetrating the housing 100 in the first optical axis (Y axis) direction may be provided, and the substrate 900 may be provided on the lower surface of the housing 100 to cover the through hole. In addition, the first coil 420 and the first position sensor 450 may be provided on the substrate 900.

[0127] A second driving unit 500 may be provided to rotate the bracket 330. The second driving unit 500 includes a second magnet 510 and a second coil 520. The bracket 330 may be rotated around the second optical axis (Z axis) by the second driving unit 500. Since the first lens module 210 is provided on the bracket 330, the first lens module 210 may rotate together with the bracket 330 (see FIG. Figure 12 ).

[0128] The second magnet 510 may be mounted on the bracket 330. For example, the second magnet 510 may be mounted on a side surface of the bracket 330. In an embodiment, the second magnet 510 may include two magnets, and the two magnets may be respectively mounted on one side surface and the other side surface of the bracket 330. The one side surface of the bracket 330 and the other side surface of the bracket 330 may be spaced apart in the first axis (X-axis) direction.

[0129] 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, one surface of the second magnet 510 facing the second coil 520 may be provided with an N pole, a neutral region, and an S pole along the first optical axis (Y axis).

[0130] 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 axis (X axis) direction.

[0131] The second coil 520 is provided on the substrate 900 , and the substrate 900 is mounted on the housing 100 such that the second magnet 510 and the second coil 520 face each other in the first axis (X-axis) direction.

[0132] The housing 100 is provided with a through hole penetrating the housing 100 in the first axis (X axis) direction, and the second coil 520 is provided in the through hole and may directly face the second magnet 510 .

[0133] During shake correction, the second magnet 510 is a moving member mounted on the bracket 330 and rotates together with the bracket 330 , and the second coil 520 is a fixed member fixed to the base plate 900 .

[0134] In an embodiment, the second coil 520 may include two coils, and the two coils may be spaced apart in the first axis (X axis) direction.

[0135] When power is supplied to the second driving unit 500, the second driving unit 500 can generate a driving force required to rotate the bracket 330 around the second optical axis (Z axis) as a rotation axis. For example, the second driving unit 500 can generate a driving force in the direction of the first optical axis (Y axis).

[0136] The second ball member B2 may be disposed between the bracket 330 and the guide member 320. The second ball member B2 may be disposed between the bracket 330 and the guide member 320 to form a rotation axis of the bracket 330.

[0137] The second ball member B2 includes a plurality of balls spaced apart in the direction of the second optical axis (Z axis). A virtual line connecting the plurality of balls of the second ball member B2 in the direction of the second optical axis (Z axis) may be spaced apart from or deviated from the second magnet 510 in the direction of the first axis (X axis).

[0138] In an embodiment, the second magnet 510 and the second coil 520 may be spaced apart from the second ball member B2 in the first axis (X axis) direction. When a driving force is generated in the first optical axis (Y axis) direction by the second magnet 510 and the second coil 520, the bracket 330 may be configured to rotate around the rotation axis formed by the second ball member B2.

[0139] A virtual line connecting the plurality of balls of the second ball member B2 in the second optical axis (Z-axis) direction may pass through the reflective surface of the reflective member 310 .

[0140] In an embodiment, when viewed in the first axis (X axis) direction, a line extending the second optical axis (Z axis) of the second lens module 220 may be disposed between both ends of the plurality of balls of the second ball member B2.

[0141] An attractive force may act between the bracket 330 and the guide member 320. In an embodiment, the first pulling magnet 530 may be provided on one of the bracket 330 and the guide member 320, and the second pulling yoke 540 may be provided on the other of the bracket 330 and the guide member 320. In another embodiment, the first pulling magnet 530 can be provided on both the bracket 330 and the guide member 320.

[0142] One surface of the first pulling magnet 530 (eg, a surface facing the second pulling yoke 540 ) may be magnetized to have an N pole, a neutral region, and an S pole in the second optical axis (Z-axis) direction.

[0143] The first pulling magnet 530 and the second pulling yoke 540 may face each other in the first optical axis (Y axis) direction. In an embodiment, the first pulling magnet 530 may be disposed on the lower surface of the bracket 330 , and the second pulling yoke 540 may be disposed on the upper surface of the guide member 320 .

[0144] The first pulling magnet 530 and the second pulling yoke 540 can generate an attractive force between each other. For example, the second pulling yoke 540 can be made of a magnetic material. The attractive force acts between the first pulling magnet 530 and the second pulling yoke 540 in the direction of the first optical axis (Y axis).

[0145] Due to the attractive force between the first pulling magnet 530 and the second pulling yoke 540 , the second ball member B2 may maintain contact with the bracket 330 and the guide member 320 .

[0146] On the other hand, the length of the second pulling yoke 540 in the first axis (X axis) direction may be greater than the length of the first pulling magnet 530 in the first axis (X axis) direction.

[0147] The third guide groove g3 and the fourth guide groove g4 may be respectively provided on surfaces of the bracket 330 and the guide member 320 facing each other (eg, surfaces facing each other in the first optical axis (Y-axis) direction).

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

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

[0150] One of the plurality of grooves of the third guide groove g3 may make three-point contact with the second ball member B2, and another of the plurality of grooves of the third guide groove g3 may make two-point contact with the second ball member B2. Figure 8 , the grooves located on the right side of the plurality of grooves of the third guide groove g3 can contact the second ball member B2 at three points, and the grooves located on the left side of the plurality of grooves of the third guide groove g3 can contact the second ball member B2 at two points.

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

[0152] In one embodiment, the camera module 1 can detect the position of the bracket 330. For this purpose, a second position sensor 550 is provided. The second position sensor 550 can be provided at a position facing the second magnet 510 (eg, a position facing in the first axis (X axis) direction).

[0153] Therefore, when the bracket 330 rotates with the second optical axis (Z axis) as the rotation axis, the position of the bracket 330 can be detected by the second position sensor 550 .

[0154] The second position sensor 550 may be a Hall sensor.

[0155] A through hole penetrating the housing 100 in the first axis (X axis) direction may be provided in the housing 100, and a substrate 900 covering the through hole may be provided on a side surface of the housing 100. In addition, the second coil 520 and the second position sensor 550 may be provided on the substrate 900.

[0156] On the other hand, although not shown in the drawings, a spacer may be provided on the lower surface of the first lens module 210 (e.g., the lower surface of the first lens holder 212 facing the reflective member 310). The spacer has an incident aperture through which light passes, and the incident aperture may be non-circular. For example, the incident aperture may be in the shape of a racetrack. That is, the inner surface of the spacer forming the incident aperture may include two planar surfaces extending parallel to each other and two curved surfaces connecting the two planar surfaces.

[0157] The inner surface of the spacer may have a waveform in which concave and convex shapes are repeated, thereby preventing a flare phenomenon.

[0158] On the other hand, refer to Figure 4 and Figure 5 The camera module 1 may further include a first stopper 710. The first stopper 710 may be coupled to the housing 100 to cover at least a portion of the first reflective module 300. For example, the first stopper 710 may cover at least a portion of the upper surface of the bracket 330. The first stopper 710 and the bracket 330 may be arranged to be spaced apart in the first optical axis (Y-axis) direction.

[0159] Since the first stopper 710 is disposed to be spaced apart from the first reflective module 300 , it is possible to prevent the first reflective module 300 from being separated from the housing 100 due to external impact or the like without interfering with the rotation of the first reflective module 300 .

[0160] A buffer member 720 having elastic force may be coupled to the first stopper 710. The buffer member 720 may be provided on at least one of one surface and the other surface of the first stopper 710. The one surface of the first stopper 710 may be a surface facing the housing 110 in the first optical axis (Y-axis) direction, and the other surface of the first stopper 710 may be a surface facing the bracket 330 in the first optical axis (Y-axis) direction.

[0161] On the other hand, the second stopper 730 may be provided on the guide member 320. The second stopper 730 is fixed to the guide member 320, and a portion of the second stopper 730 may extend toward the bracket 330. A receiving portion in which a portion of the second stopper 730 is received may be provided in the bracket 330. The receiving portion may be in a groove shape or a hole shape.

[0162] A portion of the second stopper 730 is disposed in the receiving portion of the bracket 330 and may be spaced apart from the receiving portion. One end of the portion of the second stopper 730 is bent and extended within the receiving portion. The portion of the second stopper 730 and the receiving portion of the bracket 330 may have corresponding shapes.

[0163] In an embodiment, one end of the portion of the second stopper 730 and the receiving portion may face each other in the first optical axis (Y-axis) direction.

[0164] Therefore, the second stopper 730 may prevent the bracket 330 from being separated from the guide member 320 due to an external impact, etc., without interfering with the rotation of the bracket 330 .

[0165] The buffer member 101 may be provided on at least one of surfaces of the guide member 320 and the housing 100 facing each other (eg, a surface facing the first lens module 210 on the first optical axis (Y axis)).

[0166] For example, refer to Figure 10 and Figure 11 , the buffer member 101 having elastic force may be provided on the inner bottom surface of the housing 100. The inner bottom surface of the housing 100 may be a surface facing the guide member 320 in the direction of the first optical axis (Y axis). As another example, the buffer member 101 may be provided on the lower surface of the guide member 320 (the surface facing the inner bottom surface of the housing 100 in the direction of the first optical axis (Y axis)).

[0167] Therefore, when the guide member 320 is rotated about the first axis (X axis), the rotation range may be limited, and when the guide member 320 and the housing 100 collide with each other, noise and the amount of impact may be reduced.

[0168] At least one of surfaces of the bracket 330 and the first stopper 710 facing each other (eg, surfaces facing the first lens module 210 in the first optical axis (Y axis) direction) may be provided with a buffer member 331 and 720 .

[0169] For example, refer to Figure 9 , the buffer member 331 may be provided on the upper surface of the bracket 330 (the surface facing the lower surface of the first stopper 710 in the first optical axis (Y axis) direction). Figure 5 , the buffer member 720 may be provided on a lower surface of the first stopper 710. The buffer members 331 and 720 may be formed of an elastic material.

[0170] Therefore, when the bracket 330 is rotated about the second optical axis (Z axis), the rotation range can be limited, and when the bracket 330 and the first stopper 710 collide with each other, the noise and the amount of impact can be reduced.

[0171] Figure 14 is an exploded perspective view illustrating a separate second lens module in a camera module according to an embodiment of the present disclosure. Figure 15 is a bottom stereoscopic view of the second lens module.

[0172] Reference Figure 14 , the second lens module 220 may be disposed between the first reflection module 300 and the image sensor module 800 .

[0173] The second lens module 220 can move in the second optical axis (Z-axis) direction to perform focus adjustment.

[0174] In an embodiment, the second lens module 220 includes a second lens barrel 221 and a second lens holder 222. A plurality of lenses are disposed in the second lens barrel 221, and the second lens barrel 221 may be combined with the second lens holder 222.

[0175] The camera module 1 may include a third driving unit 600 to move the second lens module 220 in the second optical axis (Z-axis) direction.

[0176] The third driving unit 600 includes a third magnet 610 and a third coil 620. The third magnet 610 and the third coil 620 may be disposed to face each other in a direction perpendicular to the second optical axis (Z-axis) direction.

[0177] The third magnet 610 is mounted on the second lens module 220. As an example, the third magnet 610 may be provided on a side surface of the second lens module 220.

[0178] In an embodiment, the third magnet 610 may include two magnets, and the two magnets may be respectively mounted on one side surface and the other side surface of the second lens module 220. The one side surface and the other side surface of the second lens module 220 may be spaced apart in the first axis (X axis) direction.

[0179] The third magnet 610 may be magnetized so that one surface (e.g., the surface facing the third coil 620) may have both an N pole and an S pole. For example, one surface of the third magnet 610 facing the third coil 620 may include an N pole, a neutral region, and an S pole in sequence along the second optical axis (Z axis).

[0180] The third coil 620 is disposed to face the third magnet 610. For example, the third coil 620 may be arranged to face the third magnet 610 in a direction perpendicular to the second optical axis (Z axis) direction (eg, in the first axis (X axis) direction).

[0181] The third coil 620 is provided on the substrate 900, and the substrate 900 is mounted on the housing 100 so that the third magnet 610 and the third coil 620 face each other in the first axis (X axis) direction. In an embodiment, the third coil 620 may include two coils spaced apart in the first axis (X axis) direction.

[0182] The housing 100 is provided with a through hole penetrating the housing 100 in the first axis (X axis) direction, and the third coil 620 provided on the substrate 900 may directly face the third magnet 610 through the through hole.

[0183] During focus adjustment, the third magnet 610 is a moving member mounted on the second lens module 220 and moves in the second optical axis (Z axis) direction together with the second lens module 220 , and the third coil 620 is a fixed member fixed to the base plate 900 .

[0184] When power is supplied to the third coil 620 , the second lens module 220 may move in the second optical axis (Z-axis) direction by electromagnetic force between the third magnet 610 and the third coil 620 .

[0185] The third ball member B3 is disposed between the second lens module 220 and the housing 100, and the second lens module 220 can be guided by the third ball member B3 and move in the direction of the second optical axis (Z axis). The third ball member B3 may include a plurality of balls.

[0186] The second pulling magnet 630 may be provided on the lower surface of the second lens module 220, and the third pulling yoke may be provided on the inner bottom surface of the housing 100. In another embodiment, the second pulling magnet 630 may be provided on both the second lens module 220 and the housing 100.

[0187] The second pulling magnet 630 may be disposed closer to one side surface of the second lens module 220. That is, the second pulling magnet 630 may be disposed closer to one side surface of the second lens module 220 than to the other side surface of the second lens module 220. In addition, the second pulling magnet 630 may be disposed between the one side surface of the second lens module 220 and the second optical axis (Z axis).

[0188] The second pulling magnet 630 and the third pulling yoke may be disposed to face each other in the first optical axis (Y-axis) direction.

[0189] The second pulling magnet 630 and the third pulling yoke may generate an attractive force between each other. For example, the attractive force may act between the second pulling magnet 630 and the third pulling yoke in the direction of the first optical axis (Y axis).

[0190] The third ball member B3 may maintain contact with the second lens module 220 and the housing 100 , respectively, by the attractive force between the second pulling magnet 630 and the third pulling yoke.

[0191] Some of the plurality of balls of the third ball member B3 may be disposed closer to one side surface of the second lens module 220, and the remaining balls of the third ball member B3 may be disposed closer to the other side surface of the second lens module 220. The number of balls disposed between the one side surface of the second lens module 220 and the second optical axis (Z axis) is greater than the number of balls disposed between the other side surface of the second lens module 220 and the second optical axis (Z axis).

[0192] In an embodiment, the third ball member B3 may include three balls. Two of the three balls are disposed between the one side surface of the second lens module 220 and the second optical axis (Z axis). The remaining one of the three balls may be disposed between the other side surface of the second lens module 220 and the second optical axis (Z axis).

[0193] The two balls disposed between the one side surface of the second lens module 220 and the second optical axis (Z axis) may be spaced apart in the second optical axis (Z axis) direction.

[0194] The fifth guide groove g5 and the sixth guide groove g6 may be provided on the surfaces facing each other of the second lens module 220 and the housing 100. For example, the fifth guide groove g5 is provided on one side of the surfaces facing each other of the second lens module 220 and the housing 100, and the sixth guide groove g6 is provided on the other side of the surfaces facing each other of the second lens module 220 and the housing 100.

[0195] The fifth guide groove g5 and the sixth guide groove g6 may be spaced apart in a direction perpendicular to the second optical axis (Z axis), for example, in the first axis (X axis) direction.

[0196] The fifth guide groove g5 and the sixth guide groove g6 extend in a direction parallel to the second optical axis (Z axis).

[0197] Some of the plurality of balls of the third ball member B3 are disposed in the fifth guide groove g5, and the remaining balls of the plurality of balls of the third ball member B3 are disposed in the sixth guide groove g6.

[0198] The number of contact points between some of the plurality of balls of the third ball member B3 and the fifth guide groove g5 is greater than the number of contact points between the remaining plurality of balls of the third ball member B3 and the sixth guide groove g6.

[0199] The fifth guide groove g5 may be disposed closer to one side surface of the second lens module 220 than the sixth guide groove g6.

[0200] The second pulling magnet 630 may be disposed closer to the fifth guide groove g5 than to the sixth guide groove g6 .

[0201] In an embodiment, the camera module 1 can detect the position of the second lens module 220. For this purpose, a third position sensor 650 is provided. The third position sensor 650 can be provided at a position facing the third magnet 610 of the third driving unit 600 (for example, at a position facing in the first axis (X axis) direction).

[0202] Therefore, when the second lens module 220 moves in the second optical axis (Z-axis) direction, the position of the second lens module 220 may be detected by the third position sensor 650 .

[0203] The third position sensor 650 may be a Hall sensor.

[0204] On the other hand, the second lens module 220 may further include a second light blocking plate 223. The second light blocking plate 223 may be coupled to the second lens module 220.

[0205] One side surface and the other side surface of the second lens module 220 may each extend from the second lens module 220 in the direction of the second optical axis (Z axis). A portion of the one side surface of the second lens module 220 and a portion of the other side surface of the second lens module 220 may face each other in the direction of the first axis (X axis). A space may be formed between the portion of the one side surface of the second lens module 220 and the portion of the other side surface of the second lens module 220.

[0206] The second light blocking plate 223 may be disposed in a space between a portion of the one side surface of the second lens module 220 and a portion of the other side surface of the second lens module 220 .

[0207] The second light shielding plate 223 serves to prevent the light passing through the second lens module 220 from being unintentionally reflected within the housing 100. Therefore, a flare phenomenon can be suppressed.

[0208] The camera module 1 may further include a third stopper 750. The third stopper 750 may be coupled to the housing 100 and may cover at least a portion of the second lens module 220.

[0209] In an embodiment, the third stopper 750 may be disposed to face the upper surface of the second lens module 220 in the first optical axis (Y-axis) direction. One side and the other side of the third stopper 750 are each bent and extended in the first optical axis (Y-axis) direction, and may face the second lens module 220 in the second optical axis (Z-axis) direction.

[0210] A buffer member 760 having elastic force may be coupled to the third stopper 750. For example, the buffer members 760 may be respectively installed on one side and the other side of the third stopper 750 facing the second lens module 220 and the second optical axis (Z axis) direction.

[0211] In addition, a buffer member may be mounted on at least one of surfaces of the third stopper 750 and the second lens module 220 facing each other in the first optical axis (Y-axis) direction.

[0212] Figure 16 is a partially exploded perspective view illustrating a separate image sensor module in a camera module according to an embodiment of the present disclosure.

[0213] The camera module 1 may further include a second reflection module 340. The second reflection module 340 may be disposed between the second lens module 220 and the image sensor 810. The second reflection module 340 may reflect light passing through the second lens module 220 at least once.

[0214] In an implementation, the second reflective module 340 may have a plurality of reflective surfaces that reflect the light passing through the second lens module 220 a plurality of times.

[0215] In an embodiment, the second reflective module 340 may have a triangular prism shape. The second reflective module 340 may include an incident surface 341 on which light is incident, a first reflective surface 342 that reflects the light that passes through the incident surface 341, a second reflective surface 343 that reflects the light reflected from the first reflective surface 342, and an exit surface 344 through which the light reflected from the second reflective surface 343 exits. The light that passes through the exit surface 344 may be incident on the image sensor 810.

[0216] The inclination angle of the reflective surface of the first reflective module 300 and the inclination angle of the first reflective surface 342 of the second reflective module 340 may be different. For example, the inclination angle of the first reflective surface 342 of the second reflective module 340 may be smaller than the inclination angle of the reflective surface of the first reflective module 300. Here, the "inclination angle" may refer to the inclination angle with respect to the inner bottom surface of the housing 100.

[0217] In an embodiment, the tilt angle of the reflective surface of the first reflective module 300 may be 45°, and the tilt angle of the first reflective surface 342 of the second reflective module 340 may be 30°.

[0218] The image sensor module 800 includes an image sensor 810, a printed circuit board 820, and a sensor housing 830. In addition, the image sensor module 800 may further include a reinforcing plate 840 and an infrared cut filter 850.

[0219] The image sensor module 800 may be installed at a certain angle relative to the housing 100. For example, the housing 100 may be provided with an inclined mounting surface, and the sensor housing 830 of the image sensor module 800 may be installed on the mounting surface of the housing 100.

[0220] The mounting surface of the housing 100 may be inclined to have an acute angle with respect to the inner bottom surface of the housing 100 .

[0221] The image sensor 810 may be housed in a sensor housing 830 and may be mounted on a printed circuit board 820. The image sensor 810 may have an imaging surface tilted with respect to the second optical axis (Z axis).

[0222] The infrared cut filter 850 may be disposed in front of the image sensor 810 , and the infrared cut filter 850 may be coupled to the sensor housing 830 .

[0223] A reinforcing plate 840 may be mounted on the rear side of the printed circuit board 820 (opposite to the surface in which the image sensor 810 is mounted) to enhance rigidity.

[0224] A connector electrically connected to the portable electronic device may be provided on the printed circuit board 820 .

[0225] Since the image sensor 810 is disposed at an angle, the size of the image sensor 810 can be maximized within a narrow space. Therefore, it is possible to achieve high-resolution image capture while reducing the size of the camera module 1.

[0226] Figure 17 is a perspective view of a reflective member of a first reflective module according to another embodiment of the present disclosure.

[0227] Reference Figure 17 , the correction lens 213 may be coupled to the reflective member 310 of the first reflective module 300. The correction lens 213 may have positive refractive power.

[0228] In an embodiment, the exit surface of the reflective member 310 of the first reflective module 300 and the object-side surface of the correction lens 213 may be joined.

[0229] Therefore, when the first reflection module 300 rotates, the correction lens 213 may also rotate together with the first reflection module 300 .

[0230] The present disclosure corrects shake by rotating the first lens module 210 and the first reflection module 300 around the first axis (X axis) and the second optical axis (Z axis), and can reduce errors in the optical path that occur during shake correction.

[0231] like Figure 17 As shown in , when the correction lens 213 having positive refractive power is provided behind the reflective member 310 of the first reflective module 300, an error in the optical path occurring during shake correction can be additionally compensated and a high-quality image can be captured.

[0232] Figure 18 is a partially exploded perspective view illustrating separate second and third lens modules in a camera module according to another embodiment of the present disclosure.

[0233] Figure 18 The camera module of the embodiment shown in includes a second lens module 2210 and a third lens module 2220 .

[0234] Each of the second lens module 2210 and the third lens module 2220 includes a plurality of lenses, and the plurality of lenses are arranged along the second optical axis (Z axis).

[0235] Each of the second lens module 2210 and the third lens module 2220 has an extending portion extending in the second optical axis (Z-axis) direction.

[0236] The second lens module 2210 may have one side surface and another side surface spaced apart in the first axis (X-axis) direction, and the extension portion of the second lens module 2210 may extend from the one side surface of the second lens module 2210 in the second optical axis (Z-axis) direction.

[0237] The third lens module 2220 may have one side surface and another side surface spaced apart in the first axis (X axis) direction, and the extension portion of the third lens module 2220 may extend from the other side surface of the third lens module 2220 in the second optical axis (Z axis) direction.

[0238] For example, the extending portion of the second lens module 2210 and the extending portion of the third lens module 2220 may be arranged to overlap in the first axis (X-axis) direction.

[0239] In an embodiment, at least a portion of the extension portion of the second lens module 2210 and at least a portion of the extension portion of the third lens module 2220 may face each other in the first axis (X-axis) direction.

[0240] The second lens module 2210 may be movable in the second optical axis (Z axis) direction. In an embodiment, the camera module may include a third driving unit 601 .

[0241] The third driving unit 601 includes a third magnet 611 and a third coil 612. The third magnet 611 and the third coil 612 may be arranged to face each other in the first axis (X-axis) direction.

[0242] The third magnet 611 is mounted on the second lens module 2210. As an example, the third magnet 611 may be provided on the one side surface of the second lens module 2210. In addition, at least a portion of the third magnet 611 may be provided on an extension portion of the second lens module 2210.

[0243] The third magnet 611 may be magnetized so that one surface (e.g., the surface facing the third coil 612) has both an N pole and an S pole. For example, one surface of the third magnet 611 facing the third coil 612 may be provided with an N pole, a neutral region, and an S pole in sequence along the second optical axis (Z axis).

[0244] The third coil 612 is arranged to face the third magnet 611. The third coil 612 is provided on the substrate 900, and the substrate 900 is mounted on the housing 100 so that the third magnet 611 and the third coil 612 face each other in the first axis (X axis) direction.

[0245] The housing 100 is provided with a through hole penetrating the housing 100 in the first axis (X axis) direction, and the third coil 612 provided on the substrate 900 may directly face the third magnet 611 through the through hole.

[0246] When power is supplied to the third coil 612 , the electromagnetic force between the third magnet 611 and the third coil 612 may move the second lens module 2210 in the second optical axis (Z-axis) direction.

[0247] The third ball member B3 is disposed between the second lens module 2210 and the housing 100, and the second lens module 2210 can be guided by the third ball member B3 to move in the second optical axis (Z axis) direction. The third ball member B3 can include three balls. For example, the three balls can be configured to form a triangle by connecting the three balls.

[0248] Two of the three balls are spaced apart in the second optical axis (Z-axis) direction and may be disposed closer to the one side surface than the other side surface of the second lens module 2210 .

[0249] The remaining one of the three balls may be disposed closer to the other side surface than the one side surface of the second lens module 2210 .

[0250] The third pulling magnet 631 may be provided on the lower surface of the second lens module 2210, and the third pulling yoke may be provided on the inner bottom surface of the housing 100. In another embodiment, the third pulling magnet 631 may be provided on both the second lens module 2210 and the housing 100.

[0251] The third pulling magnet 631 may be disposed closer to the one side surface than to the other side surface of the second lens module 2210. That is, the third pulling magnet 631 may be disposed closer to one side surface of the second lens module 2210 on which the third magnet 611 is mounted than to the other side surface of the second lens module 2210 on which the third magnet 611 is not mounted.

[0252] The third pulling magnet 631 may be disposed between the one side surface of the second lens module 2210 and the second optical axis (Z axis).

[0253] Two balls among the three balls of the third ball member B3 may be disposed in the space between the third pulling magnet 631 and the one side surface of the second lens module 2210 .

[0254] The third pulling yoke may be disposed at a position facing the third pulling magnet 631 in the first optical axis (Y-axis) direction. The third pulling magnet 631 and the third pulling yoke may generate an attractive force between each other.

[0255] A plurality of guide grooves may be provided on surfaces facing each other of the second lens module 2210 and the housing 100. Three balls of the third ball member B3 are provided in the plurality of guide grooves.

[0256] Some of the plurality of guide grooves may extend to the lower surface of the extension portion of the second lens module 2210. In addition, one of the two balls of the third ball member B3 disposed near the one side surface of the second lens module 2210 may be located between the extension portion of the second lens module 2210 and the housing 100.

[0257] The two balls of the third ball member B3 disposed near the one side surface of the second lens module 2210 each make two-point contact with the guide groove of the second lens module 2210 and two-point contact with the guide groove of the housing 100 .

[0258] The ball of the third ball member B3 disposed near the other side surface of the second lens module 2210 makes two-point contact with the guide groove of the second lens module 2210 and makes single-point contact with the guide groove of the housing 100 (and vice versa).

[0259] In an embodiment, the camera module can detect the position of the second lens module 2210. To this end, a third position sensor 613 is provided. The third position sensor 613 can be provided at a position facing the third magnet 611 (eg, a position facing in the first axis (X axis) direction).

[0260] Therefore, when the second lens module 2210 moves in the second optical axis (Z axis) direction, the position of the second lens module 2210 may be detected by the third position sensor 613. The third position sensor 613 may be a Hall sensor.

[0261] The third lens module 2220 may be movable in the second optical axis (Z axis) direction. In one embodiment, the camera module may include a fourth driving unit 602 .

[0262] The fourth driving unit 602 includes a fourth magnet 621 and a fourth coil 622. The fourth magnet 621 and the fourth coil 622 may be disposed to face each other in the first axis (X axis) direction.

[0263] The fourth magnet 621 is mounted on the third lens module 2220. For example, the fourth magnet 621 may be disposed on the other side surface of the third lens module 2220. In addition, at least a portion of the fourth magnet 621 may be disposed on an extension portion of the third lens module 2220.

[0264] The fourth magnet 621 may be magnetized so that one surface (e.g., the surface facing the fourth coil 622) has both an N pole and an S pole. For example, one surface of the fourth magnet 621 facing the fourth coil 622 may be provided with an N pole, a neutral region, and an S pole in sequence along the second optical axis (Z axis).

[0265] The fourth coil 622 is arranged to face the fourth magnet 621. The fourth coil 622 is provided on the substrate 900, and the substrate 900 is mounted on the housing 100 so that the fourth magnet 621 and the fourth coil 622 face each other in the first axis (X axis) direction.

[0266] The housing 100 may be provided with a through hole penetrating the housing 100 in the first axis (X axis) direction, and the fourth coil 622 provided on the substrate 900 may directly face the fourth magnet 621 through the through hole.

[0267] When power is supplied to the fourth coil 622 , the electromagnetic force between the fourth magnet 621 and the fourth coil 622 may move the third lens module 2220 in the second optical axis (Z-axis) direction.

[0268] The fourth ball member B4 is disposed between the third lens module 2220 and the housing 100, and the third lens module 2220 can be guided by the fourth ball member B4 to move in the second optical axis (Z axis) direction. The fourth ball member B4 includes three balls. The three balls can be configured so that the shapes of the three balls connected to each other form a triangle.

[0269] Two of the three balls are spaced apart in the second optical axis (Z-axis) direction and may be disposed closer to the other side surface than the one side surface of the third lens module 2220 .

[0270] The remaining one of the three balls may be disposed closer to the one side surface than the other side surface of the third lens module 2220 .

[0271] The fourth pulling magnet 632 may be provided on the lower surface of the third lens module 2220, and the fourth pulling yoke may be provided on the inner bottom surface of the housing 100. In another embodiment, the fourth pulling magnet 632 may be provided on both the third lens module 2220 and the housing 100.

[0272] The fourth pulling magnet 632 may be disposed closer to the other side surface than the one side surface of the third lens module 2220. That is, the fourth pulling magnet 632 may be disposed closer to the other side surface of the third lens module 2220 on which the fourth magnet 621 is mounted than to the one side surface of the third lens module 2220 on which the fourth magnet 621 is not mounted.

[0273] The fourth pulling magnet 632 may be disposed between the other side surface of the third lens module 2220 and the second optical axis (Z axis).

[0274] Two of the three balls of the fourth ball member B4 may be disposed in the space between the fourth pulling magnet 632 and the other side surface of the third lens module 2220 .

[0275] The fourth pulling yoke may be disposed at a position facing the fourth pulling magnet 632 in the first optical axis (Y-axis) direction. The fourth pulling magnet 632 and the fourth pulling yoke may generate an attractive force between each other.

[0276] A plurality of guide grooves may be provided on surfaces facing each other of the third lens module 2220 and the housing 100. Three balls of the fourth ball member B4 are provided in the plurality of guide grooves.

[0277] Some of the plurality of guide grooves may extend to the lower surface of the extension portion of the third lens module 2220. In addition, one of the two balls of the fourth ball member B4 disposed near the other side surface of the third lens module 2220 is disposed between the extension portion of the third lens module 2220 and the housing 100.

[0278] The two balls of the fourth ball member B4 disposed near the other side surface of the third lens module 2220 each make contact with the guide groove of the third lens module 2220 at two points and with the guide groove of the housing 100 at two points.

[0279] The ball of the fourth ball member B4 disposed close to the one side surface of the third lens module 2220 contacts the guide groove of the third lens module 2220 at two points and contacts the guide groove of the housing 100 at a single point.

[0280] In an embodiment, the camera module can detect the position of the third lens module 2220. To this end, a fourth position sensor 623 is provided. The fourth position sensor 623 can be provided at a position facing the fourth magnet 621 (eg, at a position facing in the first axis (X axis) direction).

[0281] Therefore, when the third lens module 2220 moves in the direction of the second optical axis (Z axis), the position of the third lens module 2220 may be detected by the fourth position sensor 623. The fourth position sensor 623 may be a Hall sensor.

[0282] Although specific examples have been shown and described above, it will be apparent after understanding this disclosure that various changes in form and detail can be made in these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be considered merely descriptive and not for purposes of limitation. The description of features or aspects in each example is considered to be applicable to similar features or aspects in other examples. Suitable results may also be obtained if the described techniques are performed in a different order, and / or if 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 present disclosure is not limited by the specific embodiments, but by the claims and their equivalents, and all changes within the scope of the claims and their equivalents are to be construed as included in this disclosure.

Claims

1. A reflection module, characterized in that: include: A first lens module having a first optical axis; a bracket, wherein a reflective member is provided on the bracket to reflect light passing through the first lens module; a guide member, the bracket being disposed on the guide member; a housing for accommodating the bracket and the guide member; a first ball member disposed between the guide member and the housing and including a plurality of balls spaced apart in a direction of a first rotation axis perpendicular to the first optical axis; as well as a second ball member disposed between the bracket and the guide member and including a plurality of balls spaced apart in a direction of a second rotation axis perpendicular to both the first optical axis and the first rotation axis, wherein the guide member is configured to rotate around the first rotation axis together with the first lens module and the bracket, wherein the bracket is configured to rotate around the second rotation axis together with the first lens module, and The reflective member is disposed between the plurality of balls of the first ball member.

2. The reflection module according to claim 1, characterized in that The guide member is provided with a first guide groove, the housing is provided with a second guide groove, and the first guide groove and the second guide groove face each other in the direction of the first optical axis, wherein the first ball member is disposed between the first guide groove and the second guide groove, and The total number of contact points between some of the plurality of balls of the first ball member and the first guide groove and the second guide groove is different from the total number of contact points between other balls of the first ball member and the first guide groove and the second guide groove.

3. The reflection module according to claim 1, characterized in that A third guide groove is provided in the bracket, a fourth guide groove is provided in the guide member, and the third guide groove and the fourth guide groove face each other in the direction of the first optical axis, wherein the second ball member is disposed between the third guide groove and the fourth guide groove, and wherein the total number of contact points between some of the plurality of balls of the second ball member and the third guide groove and the fourth guide groove is different from the total number of contact points between other of the plurality of balls of the second ball member and the third guide groove and the fourth guide groove.

4. The reflection module according to claim 1, characterized in that further comprising a first driving unit including a first magnet provided on the guide member and a first coil provided to face the first magnet in the direction of the first optical axis, One surface of the first magnet facing the first coil has an N pole, a neutral region, and an S pole in the direction of the second rotation axis.

5. The reflection module according to claim 4, characterized in that: A virtual line connecting the plurality of balls of the first ball member in the direction of the first rotation axis is offset from the first magnet in the direction of the first optical axis.

6. The reflection module according to claim 4, characterized in that: A first pulling yoke is provided in the housing and is spaced apart from the first magnet in the direction of the first optical axis.

7. The reflection module according to claim 1, characterized in that: A first pulling magnet is provided on one of the bracket and the guide member, and a second pulling yoke is provided on the other of the bracket and the guide member, wherein the first pulling magnet and the second pulling yoke face each other in the direction of the first optical axis, and One surface of the first pulling magnet facing the second pulling yoke has an N pole, a neutral region, and an S pole in the direction of the second rotation axis.

8. The reflection module according to claim 7, characterized in that: A length of the second pulling yoke in the direction of the first rotation axis is greater than a length of the first pulling magnet in the direction of the first rotation axis.

9. The reflection module according to claim 7, characterized in that: The first pulling magnet and the second pulling yoke are disposed between the plurality of balls of the second ball member.

10. The reflection module according to claim 1, characterized in that: further comprising a second driving unit including a second magnet provided on the bracket and a second coil provided to face the second magnet in the direction of the first rotation axis, In this case, one surface of the second magnet facing the second coil has an N pole, a neutral region, and an S pole along the first optical axis.

11. The reflection module according to claim 10, characterized in that: A virtual line connecting the plurality of balls of the second ball member in the direction of the second rotation axis is offset from the second magnet in the direction of the first rotation axis.

12. The reflection module according to claim 1, characterized in that a first stopper coupled to the housing covering at least a portion of an upper surface of the bracket, and A buffer member is provided on at least one surface of the first stopper and the bracket that faces each other in the direction of the first optical axis.

13. The reflection module according to claim 1, characterized in that: a second stopper coupled to the guide member, wherein the bracket has a receiving portion, a portion of the second stopper is disposed in the receiving portion, and wherein the portion of the second stopper has a surface facing the receiving portion in the direction of the first optical axis.

14. A camera module, characterized in that: The invention comprises a reflection module according to any one of claims 1 to 13.

15. A camera module, characterized in that: include: a guide member disposed in the housing to rotate about a first rotation axis; a bracket provided on the guide member to rotate relative to the guide member about a second rotation axis perpendicular to the first rotation axis, and having a reflecting member provided on the bracket; a first ball member disposed between the guide member and the housing; a second ball member disposed between the bracket and the guide member; a first lens module, disposed on the bracket and having a first optical axis perpendicular to both the first rotation axis and the second rotation axis; as well as a second lens module into which light reflected from the reflection member is incident and having a second optical axis, The first rotation axis is perpendicular to both the first optical axis and the second optical axis.

16. The camera module according to claim 15, wherein: An image sensor is also included. The image sensor is configured to receive light passing through the second lens module, and the image sensor has an imaging surface tilted relative to the second optical axis.

17. The camera module according to claim 15, wherein: Also includes: a first driving unit including a first magnet provided on the guide member and a first coil provided to face the first magnet in the direction of the first optical axis; as well as a second driving unit including a second magnet provided on the bracket and a second coil provided to face the second magnet in the direction of the first rotation axis, wherein the first ball member includes a plurality of balls spaced apart in the direction of the first rotation axis, and The second ball member includes a plurality of balls spaced apart in the direction of the second rotation axis.

18. The camera module according to claim 17, wherein: A first pulling yoke is provided in the housing and is spaced apart from the first magnet in the direction of the first optical axis. wherein a first pulling magnet is provided on one of the bracket and the guide member, and a second pulling yoke facing the first pulling magnet in the direction of the first optical axis is provided on the other of the bracket and the guide member, and Wherein, the first pulling magnet and the second pulling yoke are disposed between the plurality of balls of the second ball member.

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