Reflection module and camera module

Abstract

The invention 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 the priority of Korean Patent Application No. 10 - 2023 - 0171679, filed on November 30, 2023, and Korean Patent Application No. 10 - 2024 - 0057099, filed on April 29, 2024, with the Korean Intellectual Property Office, the entire disclosures of which are incorporated herein by reference for all purposes. Technical field

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

[0004] For example, a camera module used in a mobile device can bend the optical path by disposing a reflection member in front of a lens module. Since the diameter of the lens disposed in the lens module affects the thickness of the mobile device, such a camera module may have limitations in increasing the diameter of the lens. Therefore, there may be a problem in that it may be difficult to reduce the F - number of the camera module.

[0005] Therefore, a structure in which some lenses are disposed in front of the reflection member has been proposed.

[0006] On the other hand, a camera module has a shake - correction function that corrects shake during shooting to improve resolution. This shake - correction function can be achieved by the biaxial rotation of the reflection member. In this case, the biaxial rotation can be achieved by pitching rotation and yaw rotation. Here, when a lens is disposed in front of the reflection member, the lens can rotate together with the reflection member.

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

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

[0009] Here, when the reflection member yaw - rotates, an error in the change of the expected optical path length may occur.

[0010] The reason is that in the case of yaw rotation in the biaxial rotation, the apparent position change of the lens disposed in front of the reflection member before and after yaw rotation may not be significant.

[0011] Therefore, when jitter in the correction deflection direction is corrected, there may be a problem that large aberrations may occur, and the resolution may deteriorate.

[0012] The above information is presented as background information only to help understand the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above constitutes prior art with respect to the present disclosure. SUMMARY OF THE INVENTION

[0013] The present Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. The present Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to help determine the scope of the claimed subject matter.

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

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

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

[0017] The reflection module may further include a first driving unit, which includes a first magnet disposed on the guiding member and a first coil disposed to face the first magnet in the direction of the first optical axis. One 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 traction yoke spaced apart from the first magnet in the direction of the first optical axis may be provided in the housing.

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

[0021] The length of the second traction yoke in the direction of the first rotation axis may be greater than the length of the first traction magnet in the direction of the first rotation axis.

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

[0023] The reflection module may further include a second driving unit, which includes 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. One 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] A first stopper coupled to the housing may cover at least a part of the 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] A second stopper may be coupled to the guiding member. The bracket may have a receiving portion, and a part of the second stopper is disposed in the receiving portion. The said part 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 guiding member disposed in a housing to rotate about a first rotation axis; a bracket disposed on the guiding member to rotate relative to the guiding member about a second rotation axis perpendicular to the first rotation axis, and a reflecting member is disposed on the bracket; a first ball member disposed between the guiding member and the housing; a second ball member disposed between the bracket and the guiding 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, light reflected from the reflecting member is incident into the second lens module, and the second lens module has 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 inclined with respect to the second optical axis.

[0029] The camera module may further include: a first driving unit including a first magnet disposed on the guiding member and a first coil disposed to face the first magnet in the direction of the first optical axis; and a second driving 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 attracting yoke spaced apart from the first magnet in the direction of the first optical axis may be disposed in the housing. A first attracting magnet may be disposed on one of the bracket and the guiding member, and a second attracting yoke facing the first attracting magnet in the direction of the first optical axis may be disposed on the other of the bracket and the guiding member. The first attracting magnet and the second attracting yoke may be disposed between the plurality of balls of the second ball member.

[0031] Other features and aspects will be apparent from the following detailed description, the drawings, and the claims. 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 cut-away 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 is a view observed in another direction Figure 4 of...

[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 is a view observed in another direction Figure 6 of...

[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 cut-away 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 view showing a first lens module, a bracket, and a reflection member rotating about a second rotation axis.

[0044] Figure 13 is a view showing a first lens module, a bracket, a reflection member, and a guide member rotating about a first rotation axis.

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

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

[0047] Figure 16 is an exploded perspective view showing 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 reflection member of a first reflection module according to another embodiment of the present disclosure.

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

[0050] Throughout the drawings and the 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 dimensions, proportions, and depictions of elements in the drawings may be exaggerated. Detailed Description

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

[0052] The following detailed description is provided to assist the reader in obtaining a comprehensive understanding of the methods, apparatuses, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and / or systems described herein will be apparent after 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 rather may be changed as will be apparent after 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 increased clarity and conciseness.

[0053] The features described herein may be implemented in different forms and will not be construed as limited to the examples described herein. Instead, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, apparatuses, and / or systems described herein that will be apparent after 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 there may be one or more other elements therebetween. 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 therebetween.

[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 components, elements, regions, layers, or sections, these components, elements, regions, layers, or sections are not limited by these terms. Rather, these terms are only used to distinguish one component, element, region, layer, or section from another. Thus, a first component, first element, first region, first layer, or first section described in an example herein may also be referred to as a second component, second element, second region, second layer, or second section without departing from the teachings of the example.

[0057] For ease of description, spatial relative terms such as "above", "upper", "below", "lower", etc. may be used herein to describe the relationship of one element to another as shown in the figures. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "above" or "upper" relative to another element will then be "below" or "lower" relative to the other element. Thus, the term "above" encompasses both the above and below orientations, 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 spatial relative terms used herein will be interpreted accordingly.

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

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

[0060] It should be noted herein that the term "may" is used with respect to examples, e.g., as to what an example may include or implement, meaning that there is at least one example that includes or implements this feature, and all examples and embodiments are not limited thereto.

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

[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 smart phone, or a tablet PC.

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

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

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

[0066] Referring to 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 the first lens module 210 may have a first optical axis (Y-axis). In terms of Figure 3 , the first optical axis (Y-axis) may extend in the up and 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 coupled to the first lens holder 212.

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

[0070] The first lens module 210 may be coupled to 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 a second optical axis (Z-axis).

[0073] The first optical axis (Y-axis) of the first lens module 210 and the second optical axis (Z-axis) of the second lens module 220 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 lens of the plurality of lenses of the second lens module 220 may be non-circular. For example, the 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) direction perpendicular to both the first optical axis (Y-axis) direction and the second optical axis (Z-axis) direction may be greater than the length in the first optical axis (Y-axis) direction.

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

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

[0078] As Figure 16 shown, 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-off filter 850.

[0079] The infrared cut-off filter 850 may be mounted on the sensor housing 830. The infrared cut-off filter 850 is used to block light in the infrared region of 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 (e.g., the image sensor 810).

[0082] The camera module 1 may further include a first light shield 130. The first light shield 130 is disposed in the housing 100 and is configured to prevent flare phenomena due to unintentional reflection of light within the housing 100.

[0083] The first light shield 130 may be disposed in the space between the second lens module 220 and the image sensor module 800. Additionally, the first light shield 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 within the housing 100, the first light shield 130 can prevent the diffusely reflected light from entering the image sensor 810, thereby suppressing flare phenomena.

[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. Additionally, the second reflection module 340 may be disposed between the first light shield 130 and the image sensor module 800.

[0086] The second reflection module 340 may have one or more reflective 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 optical path can be formed within a limited space.

[0087] In an embodiment, the second reflection module 340 may have a triangular prism shape. The second reflection 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 through which the light reflected from the second reflective surface 343 can 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 housing 100 to cover the upper portion of the housing 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 disposed to protrude outside the housing 100 and the housing 110.

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

[0091] Additionally, 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 Is a view observed in another direction Figure 6 of.

[0092] In addition, Figure 8 Is a bottom perspective 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] Furthermore, Figure 10 Is a partially cut-away perspective view of the housing. Figure 11 Is a plan view of a housing according to an embodiment of the present disclosure. Figure 12 Is a view showing a first lens module, a bracket, and a reflection member rotating about a second rotation axis. Figure 13 Is a view showing a first lens module, a bracket, a reflection member, and a guide member rotating about a first rotation axis.

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

[0095] The reflection member 310 has a reflection surface for reflecting light passing through the first lens module 210. For example, the reflection member 310 may be a mirror, and is preferably a prism.

[0096] When the reflection member 310 is a prism, the reflection 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 enters, a reflection surface for reflecting the light passing through the incident surface, and an exit surface through which the light reflected from the reflection surface exits.

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

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

[0099] The guide member 320 may 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 may 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 may also rotate together with the guide member 320. On the other hand, the first axis (X-axis) may also be referred to as the first rotation axis.

[0100] The bracket 330 can rotate about a second optical axis (Z-axis) perpendicular to the first axis (X-axis). For example, the bracket 330 can rotate relative to the guide member 320 about the second optical axis (Z-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 the second rotation axis.

[0101] The first driving unit 400 can 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 can rotate about the first axis (X-axis) relative to the housing 100. 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 can also rotate together with the guide member 320 (see Figure 13 ).

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

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

[0104] The first coil 420 can be provided at a position facing the first magnet 410. In an embodiment, the first coil 420 can 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 to directly face the first magnet 410.

[0107] During jitter correction, the first magnet 410 is a moving member mounted on the guide member 320 and rotating together with the guide member 320, and the first coil 420 is a fixed member fixed to the substrate 900.

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

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

[0110] The first ball member B1 can include a plurality of balls spaced apart in the first axis (X-axis) direction. The virtual line connecting the plurality of balls of the first ball member B1 in the first axis (X-axis) direction can be spaced apart from or deviated 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 can be spaced apart from the first ball member B1 in the first optical axis (Y-axis) direction. 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 guiding member 320 can rotate about the rotation axis formed by the first ball member B1.

[0112] The virtual line connecting the plurality of balls of the first ball member B1 in the first axis (X-axis) direction can pass through the reflection surface of the reflection member 310. The reflection member 310 can 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) direction, the line extending the first optical axis (Y-axis) of the first lens module 210 can be disposed between the two ends of the plurality of balls of the first ball member B1. Here, the two ends of the plurality of balls of the first ball member B1 can mean the two ends in the second optical axis (Z-axis) direction.

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

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

[0116] The first magnet 410 and the first traction yoke 430 can generate an attractive force between each other. For example, the first traction yoke 430 can be formed of a magnetic material. The attractive force acts between the first magnet 410 and the first traction 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 traction yoke 430, the first ball member B1 can remain in contact with the guide member 320 and the housing 100.

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

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

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

[0121] One of the plurality of grooves of the first guide groove g1 can be in three-point contact with the first ball member B1, and another of the plurality of grooves of the first guide groove g1 can be in two-point contact with the first ball member B1. For example, referring to Figure 11 , the groove located on the left side of the plurality of grooves of the first guide groove g1 can be in contact with 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 can be in contact with 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 three-point contact with the first ball member B1. The shapes of the first guide groove g1 and the second guide groove g2 can also be interchanged.

[0123] In an embodiment, the camera module 1 can detect the position of the guide member 320. For this purpose, 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, a position facing in the direction of the first optical axis (Y-axis)).

[0124] Therefore, when the guide member 320 rotates about the first axis (X-axis), the position of the guide member 320 can 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, which 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. Through the second driving unit 500, the bracket 330 may rotate about the second optical axis (Z-axis). 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 Figure 12 ).

[0128] The second magnet 510 may be mounted on the bracket 330. For example, the second magnet 510 may be mounted on the 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 such 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) direction.

[0130] The second coil 520 may be provided at a position facing the second magnet 510. In an embodiment, the second coil 520 may be provided 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 jitter correction, the second magnet 510 is a moving member mounted on the bracket 330 and rotating together with the bracket 330, and the second coil 520 is a fixed member fixed to the substrate 900.

[0134] In an embodiment, the second coil 520 may include two coils. 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 may generate a driving force required to rotate the bracket 330 around the second optical axis (Z-axis) as the rotation axis. For example, the second driving unit 500 may 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 the 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 deviate from the second magnet 510 in the first axis (X-axis) direction.

[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 direction of the first optical axis (Y-axis) 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 direction of the second optical axis (Z-axis) may pass through the reflection surface of the reflection member 310.

[0140] In an embodiment, when viewed in the first axis (X-axis) direction, the line extending the second optical axis (Z-axis) of the second lens module 220 may be disposed between the two 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 traction magnet 530 may be disposed on one of the bracket 330 and the guide member 320, and the second traction yoke 540 may be disposed on the other of the bracket 330 and the guide member 320. In another embodiment, the first traction magnet 530 can be disposed on both the bracket 330 and the guide member 320.

[0142] One surface of the first traction magnet 530 (e.g., the surface facing the second traction yoke 540) can be magnetized to have the form of an N pole, a neutral region, and an S pole in the direction of the second optical axis (Z axis).

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

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

[0145] Due to the attractive force between the first traction magnet 530 and the second traction yoke 540, the second ball member B2 can remain in contact with the bracket 330 and the guide member 320.

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

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

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

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

[0150] One of the plurality of grooves of the third guide groove g3 can be in three-point contact with the second ball member B2, and another of the plurality of grooves of the third guide groove g3 can be in two-point contact with the second ball member B2. For example, referring to Figure 8 , the groove 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 groove 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 be in 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 may detect the position of the bracket 330. For this purpose, a second position sensor 550 is provided. The second position sensor 550 may be provided at a position facing the second magnet 510 (e.g., a position facing in the first axis (X-axis) direction).

[0153] Therefore, when the bracket 330 rotates about the second optical axis (Z-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 bracket 212 facing the reflection member 310). The spacer has an incident hole through which light passes, and the incident hole may be non-circular. For example, the incident hole may be in a runway shape. That is, the inner surface of the spacer forming the incident hole may include two planes extending parallel to each other and two curved surfaces connecting the two planes.

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

[0158] On the other hand, referring 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 part of the first reflection module 300. For example, the first stopper 710 may cover at least a part 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 provided to be spaced apart from the first reflection module 300, it is possible to prevent the first reflection module 300 from being separated from the housing 100 due to an external impact or the like without disturbing the rotation of the first reflection module 300.

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

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

[0162] A part of the second stopper 730 is disposed in the receiving portion of the bracket 330 and may be arranged to be spaced apart from the receiving portion. One end of a part of the second stopper 730 extends bent within the receiving portion. The part of the second stopper 730 and the receiving portion of the bracket 330 may have corresponding shapes to each other.

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

[0164] Therefore, the second stopper 730 can prevent the bracket 330 from being separated from the guide member 320 due to an external impact or the like without disturbing the rotation of the bracket 330.

[0165] A buffer member 101 may be disposed on at least one of the opposing surfaces of the guide member 320 and the housing 100 (e.g., a surface facing the first lens module 210 on the first optical axis (Y-axis)).

[0166] For example, referring to Figure 10 and Figure 11 , a buffer member 101 having an elastic force may be disposed 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 disposed on the lower surface of the guide member 320 (a 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 can be limited, and when the guide member 320 collides with the housing 100, the noise and the amount of impact can be reduced.

[0168] At least one of the surfaces of the bracket 330 and the first stopper 710 that face each other (for example, the surface that faces the first lens module 210 in the direction of the first optical axis (Y-axis)) may be provided with buffer members 331 and 720.

[0169] For example, referring to Figure 9 , the buffer member 331 may be provided on the upper surface of the bracket 330 (the surface that faces the lower surface of the first stopper 710 in the direction of the first optical axis (Y-axis)). Referring to Figure 5 , the buffer member 720 may be provided on the 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 around the second optical axis (Z-axis), the rotation range can be restricted, and when the bracket 330 and the first stopper 710 collide with each other, noise and the amount of impact can be reduced.

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

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

[0173] The second lens module 220 may be moved in the direction of the second optical axis (Z-axis) for focus adjustment.

[0174] In an embodiment, the second lens module 220 includes a second lens barrel 221 and a second lens bracket 222. A plurality of lenses are provided in the second lens barrel 221, and the second lens barrel 221 may be coupled to the second lens bracket 222.

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

[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 provided to face each other in a direction perpendicular to the direction of the second optical axis (Z-axis).

[0177] The third magnet 610 is mounted on the second lens module 220. As an example, the third magnet 610 may be provided on the 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 such 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 sequentially include an N pole, a neutral region, and an S pole in the second optical axis (Z-axis) direction.

[0180] The third coil 620 is arranged 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 (e.g., in the first axis (X-axis) direction).

[0181] The third coil 620 is disposed on the substrate 900, and the substrate 900 is mounted on the housing 100 such 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 disposed 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 moving together with the second lens module 220 in the second optical axis (Z-axis) direction, and the third coil 620 is a fixed member fixed to the substrate 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 the 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 may 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 traction magnet 630 may be disposed on the lower surface of the second lens module 220, and the third traction yoke may be disposed on the inner bottom surface of the housing 100. In another embodiment, the second traction magnet 630 may be disposed on both the second lens module 220 and the housing 100.

[0187] The second traction magnet 630 may be disposed closer to one side surface of the second lens module 220. That is, the second traction 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. Additionally, the second traction 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 traction magnet 630 and the third traction yoke may be disposed to face each other in the direction of the first optical axis (Y-axis).

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

[0190] Due to the attractive force between the second traction magnet 630 and the third traction yoke, the third ball member B3 can remain in contact with the second lens module 220 and the housing 100 respectively.

[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 direction of the second optical axis (Z-axis).

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

[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) (e.g., 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 balls of the plurality of balls of the third ball member B3 and the sixth guide groove g6.

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

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

[0201] In an embodiment, the camera module 1 may detect the position of the second lens module 220. For this purpose, a third position sensor 650 is provided. The third position sensor 650 may be provided at a position facing the third magnet 610 of the third driving unit 600 (e.g., 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 can 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 shield 223. The second light shield 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 part of one side surface of the second lens module 220 and a part of the other side surface of the second lens module 220 may face each other in the first axis (X-axis) direction. A space may be formed between a part of one side surface of the second lens module 220 and a part of the other side surface of the second lens module 220.

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

[0207] The second light shield 223 is for preventing light passing through the second lens module 220 from being unintentionally reflected within the housing 100. Accordingly, 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 part of the second lens module 220.

[0209] In an embodiment, the third stopper 750 may be disposed to face an upper surface of the second lens module 220 in a 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 a second optical axis (Z-axis) direction.

[0210] A buffer member 760 having an elastic force may be coupled to the third stopper 750. For example, the buffer member 760 may be respectively mounted 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 that face each other in the first optical axis (Y-axis) direction.

[0212] Figure 16 is a partially exploded perspective view of 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 embodiment, the second reflection module 340 may have a plurality of reflection surfaces that reflect light passing through the second lens module 220 multiple times.

[0215] In an embodiment, the second reflection module 340 may have a triangular prism shape. The second reflection module 340 may include an incident surface 341 for light to enter, a first reflection surface 342 for reflecting the light passing through the incident surface 341, a second reflection surface 343 for reflecting the light reflected from the first reflection surface 342, and an exit surface 344 through which the light reflected from the second reflection surface 343 exits. The light passing through the exit surface 344 may be incident on the image sensor 810.

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

[0217] In an embodiment, the inclination angle of the reflection surface of the first reflection module 300 may be 45°, and the inclination angle of the first reflection surface 342 of the second reflection 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. Additionally, the image sensor module 800 may further include a reinforcing plate 840 and an infrared cut-off filter 850.

[0219] The image sensor module 800 may be mounted with respect to the housing 100 at a certain angle. 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 mounted on this mounting surface of the housing 100.

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

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

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

[0223] The reinforcing plate 840 may be mounted on the rear side of the printed circuit board 820 (opposite to the surface on 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. Accordingly, high-resolution image capture can be achieved while reducing the size of the camera module 1.

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

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

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

[0229] Accordingly, 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 may correct shake by rotating the first lens module 210 and the first reflection module 300 about a first axis (X-axis) and a second optical axis (Z-axis), and may reduce an error in an optical path that occurs during shake correction.

[0231] As Figure 17 shown in

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

[0233] Figure 18 The camera module of the embodiment shown in

[0234] includes a second lens module 2210 and a third lens module 2220.

[0235] 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).

[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 an 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 an extension portion of the third lens module 2220 may extend from the another side surface of the third lens module 2220 in the second optical axis (Z-axis) direction.

[0238] For example, the extension portion of the second lens module 2210 and the extension 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 part of the extension portion of the second lens module 2210 and at least a part 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 part of the third magnet 611 may be provided on the extension portion of the second lens module 2210.

[0243] The third magnet 611 may be magnetized such that one surface (for example, 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 sequentially provided with an N pole, a neutral region, and an S pole in the second optical axis (Z-axis) direction.

[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 such 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 that penetrates the housing 100 in the first axis (X-axis) direction, and the third coil 612 provided on the substrate 900 can directly face the third magnet 611 through this 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 can move the second lens module 2210 in the second optical axis (Z-axis) direction.

[0247] The third ball member B3 is provided 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 through the three balls.

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

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

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

[0251] The third traction magnet 631 can be arranged to be closer to one side surface than the other side surface of the second lens module 2210. That is, the third traction magnet 631 can be arranged to be closer to the one side surface of the second lens module 2210 where the third magnet 611 is installed than the other side surface of the second lens module 2210 where the third magnet 611 is not installed.

[0252] The third traction magnet 631 can be provided between one side surface of the second lens module 2210 and the second optical axis (Z-axis).

[0253] Two of the three balls of the third ball member B3 can be provided in the space between the third traction magnet 631 and one side surface of the second lens module 2210.

[0254] The third traction yoke can be provided at a position facing the third traction magnet 631 in the first optical axis (Y-axis) direction. An attractive force can be generated between the third traction magnet 631 and the third traction yoke.

[0255] A plurality of guide grooves may be provided on the surfaces of the second lens module 2210 and the housing 100 facing each other. Three balls of the third ball member B3 are disposed 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 disposed near the one side surface of the second lens module 2210 of the third ball member B3 may be located between the extension portion of the second lens module 2210 and the housing 100.

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

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

[0259] In an embodiment, the camera module may detect the position of the second lens module 2210. For this purpose, a third position sensor 613 is provided. The third position sensor 613 may be disposed at a position facing the third magnet 611 (for example, 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 can 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 part of the fourth magnet 621 may be disposed on the extension portion of the third lens module 2220.

[0264] The fourth magnet 621 can be magnetized such 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 sequentially provided with an N pole, a neutral region, and an S pole in the direction of 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 such 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 can cause the third lens module 2220 to move in the second optical axis (Z axis) direction.

[0268] The fourth ball member B4 is provided 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 such that the shape of the three balls connected to each other forms a triangle.

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

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

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

[0272] The fourth traction magnet 632 can be arranged to be closer to the other side surface than to the one side surface of the third lens module 2220. That is, the fourth traction magnet 632 can be arranged to be closer to the other side surface of the third lens module 2220 where the fourth magnet 621 is mounted than to the one side surface of the third lens module 2220 where the fourth magnet 621 is not mounted.

[0273] The fourth traction 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 traction magnet 632 and the other side surface of the third lens module 2220.

[0275] The fourth traction yoke may be disposed at a position facing the fourth traction magnet 632 in the direction of the first optical axis (Y-axis). An attractive force may be generated between the fourth traction magnet 632 and the fourth traction yoke.

[0276] A plurality of guide grooves may be provided on the surfaces of the third lens module 2220 and the housing 100 facing each other. The three balls of the fourth ball member B4 are disposed 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 close to 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] Each of the two balls of the fourth ball member B4 disposed close to the other side surface of the third lens module 2220 contacts the guide grooves of the third lens module 2220 at two points and the guide grooves of the housing 100 at two points.

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

[0280] In an embodiment, the camera module may detect the position of the third lens module 2220. For this purpose, a fourth position sensor 623 is provided. The fourth position sensor 623 may be disposed at a position facing the fourth magnet 621 (for example, a position facing in the direction of the first axis (X-axis)).

[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] While specific examples have been shown and described above, it will be apparent after understanding the present disclosure that various changes in form and detail may be made in these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are considered to be illustrative only and not for the purpose of limitation. The description of a feature or aspect in each example is considered applicable to similar features or aspects in other examples. Suitable results may also be obtained if the described techniques are performed in a different order and / or if the components in the described systems, architectures, devices, or circuits are combined in a different manner and / or replaced or supplemented by other components or their equivalents. Accordingly, the scope of the present disclosure is defined not by the specific embodiments but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents will be construed as being included in the present disclosure.

Claims

1. A reflection module, comprising: A first lens module including at least one lens and having a first optical axis; a bracket, wherein a reflective member is disposed on the bracket to reflect light passing through the first lens module; a guide member, the bracket being arranged 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 Wherein, the reflective member is disposed between the plurality of balls of the first ball member.

2. The reflection module according to claim 1, wherein: 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 wherein 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 of the plurality of balls of the first ball member and the first guide groove and the second guide groove.

3. The reflection module according to claim 1, wherein: 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, wherein: further comprising a first driving 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, 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, wherein: 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, wherein: A first pulling yoke is disposed 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, wherein: A first pulling magnet is disposed on one of the bracket and the guide member, and a second pulling yoke is disposed 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 Among them, 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, wherein: A length of the second pulling magnet 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, wherein: 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, further comprising a second driving unit, the second driving unit comprising 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, 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, wherein: 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, wherein: 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 facing each other in the direction of the first optical axis.

13. The reflection module according to claim 1, wherein: 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 comprising the reflective module according to any one of claims 1-13.

15. A camera module, comprising: a guide member disposed in the 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 having a reflection 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 support, comprising at least one lens 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 the light reflected from the reflection member is incident and having a second optical axis, Wherein, the first rotation axis is perpendicular to both the first optical axis and the second optical axis. 16 . The camera module of claim 15 , further comprising an image sensor configured to receive light passing through the second lens module, the image sensor having an imaging surface tilted with respect to the second optical axis.

17. The camera module according to claim 15, further comprising: a first driving 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; as well as a second driving 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, wherein the first ball member includes a plurality of balls spaced apart in the direction of the first rotation axis, and Wherein, 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 disposed 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 disposed 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 disposed on the other of the bracket and the guide member, and Wherein, the first pulling magnet and the second pulling yoke are arranged between the plurality of balls of the second ball member.

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