Reflective module and camera module comprising the same

Abstract

The present application relates to a reflection module and a camera module including the same. The camera module includes a first lens module including one or more lenses disposed along a first optical axis, and a reflection module into which light emitted from the first lens module is incident, wherein the reflection module includes a housing having an internal space, a rotatable support supported in the housing in a first direction parallel to the first optical axis and configured to be rotatable with respect to the housing, a reflection support supported in the rotatable support in a second direction different from the first direction and configured to be rotatable with respect to the rotatable support, a reflection member disposed on the reflection support, and a first spherical member forming a rotation axis of the rotatable support, and through which an imaginary line extending along the first optical axis passes.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2021-0177868, filed on December 13, 2021, Korean Patent Application No. 10-2022-0081402, filed on July 1, 2022, and Korean Patent Application No. 10-2022-0159770, filed on November 24, 2022, the entire disclosure of which is incorporated herein by reference for all purposes. Technical Field

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

[0004] Camera modules provided in mobile devices are manufactured to offer improved performance compared to traditional cameras. In particular, the demand for camera modules capable of providing high zoom magnification is increasing due to the increasing frequency of image capture using mobile devices.

[0005] The camera module can adjust the zoom magnification by moving the lens module. To achieve a high zoom magnification, the distance the light incident on the camera travels to the image sensor must be sufficiently ensured, i.e., the total length or total trace length (TTL). To achieve a long TTL, the overall length of the camera can be increased. However, mobile devices are becoming increasingly smaller, and therefore, there are space constraints in sufficiently increasing the length of the camera module.

[0006] Therefore, a structure is needed that can form an optical path as long as possible without increasing the total length of the camera module or at the same time reducing the total length of the camera module.

[0007] Furthermore, recent camera modules include movable or rotatable reflectors capable of refracting or reflecting light to achieve long optical paths and perform optical image stabilization. To use a reflector to refract or reflect light, its position needs to be precisely sensed, as fine adjustment of the reflector is required. For this purpose, the camera module can include a position sensor capable of detecting the amount of motion of the reflector.

[0008] However, a problem with traditional camera modules is that if the position of the reflector deviates even slightly due to external impacts, the position sensing accuracy is greatly reduced. Summary of the Invention

[0009] This summary is provided to present, in a simplified form, the selection of concepts further described in the following detailed description. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to help determine the scope of the claimed subject matter.

[0010] In one general aspect, the camera module includes: a first lens module including one or more lenses disposed along a first optical axis; and a reflection module into which light emitted from the first lens module is incident, wherein the reflection module may include: a housing having an internal space; a rotatable bracket supported in the housing in a first direction parallel to the first optical axis and configured to be rotatable relative to the housing; a reflection bracket supported in the rotatable bracket in a second direction different from the first direction and configured to be rotatable relative to the rotatable bracket; a reflection member disposed on the reflection bracket; and a first spherical member forming a rotation axis of the rotatable bracket, and an imaginary line extending along the first optical axis passing through the first spherical member.

[0011] The camera module may also include a pair of magnets configured to provide magnetic force to support the reflector mount in a rotatable bracket, wherein one of the magnets may be disposed on the reflector mount and the other magnet may be disposed on the rotatable bracket, and the pair of magnets face each other in a second direction.

[0012] The camera module may also include multiple second spherical components, which are disposed between the reflector bracket and the rotatable bracket and form the rotation axis of the reflector bracket.

[0013] The camera module may also include multiple receiving slots formed in one or both of the reflective bracket and the rotatable bracket, wherein multiple second ball members may be respectively disposed in the multiple receiving slots in a second direction.

[0014] The rotation axis of the reflective bracket can pass through multiple second spherical components, and the reflective component can be arranged between multiple second spherical components.

[0015] The camera module may also include a drive magnet and a drive coil configured to rotate a reflective bracket, wherein the drive magnet may be mounted on the reflective bracket and the drive coil may be mounted on the housing, or the drive magnet may be mounted on the housing and the drive coil may be mounted on the reflective bracket.

[0016] The reflective bracket may include an extension disposed between the rotatable bracket and the housing, a drive coil may be disposed on the housing, and a drive magnet may be disposed on the extension to face the drive coil in a second direction.

[0017] The camera module may also include a position sensor, which is mounted on the housing and faces the drive magnet in a second direction.

[0018] The driving magnet can be configured such that the surface of the driving magnet facing the driving coil has an N pole, a neutral region and an S pole arranged in a first direction, and the position sensor can face the neutral region.

[0019] A driving magnet can be positioned between the pair of magnets and the driving coil.

[0020] The camera module may also include a drive magnet and a drive coil configured to rotate a rotatable bracket; and a magnet configured to provide magnetic force by interacting with the drive magnet to support the rotatable bracket in the housing, wherein the magnet and the drive magnet may face each other in a first direction, and the drive coil is inserted between the magnet and the drive magnet.

[0021] The camera module may also include a position sensor facing the driving magnet in the first direction.

[0022] The camera module may also include a receiving slot formed in one or both of the housing and the rotatable bracket, and support the first ball member at three or more points.

[0023] The camera module may also include a plurality of guide ball members configured to guide the rotation of the rotatable support, wherein the plurality of guide ball members are movable relative to the first ball member in a direction perpendicular to the first direction.

[0024] The camera module may also include a damper mounted on a reflector mount and projecting toward the first lens module.

[0025] The camera module may also include a second lens module into which light emitted from the reflective member is incident. The second lens module includes one or more lenses arranged along a second optical axis, wherein the second optical axis may be parallel to a second direction.

[0026] In another general aspect, the camera module includes a first lens module and a second lens module having different optical axes; and a reflection module disposed in the optical path from the first lens module to the second lens module, wherein the reflection module may include: a housing having an internal space; a rotatable bracket disposed in the internal space of the housing and configured to rotate about a first rotation axis; a reflection bracket configured to rotate relative to the rotatable bracket about a second rotation axis perpendicular to the first rotation axis; and a reflection member disposed on the reflection bracket.

[0027] The rotatable bracket can be supported in the housing in a first direction parallel to the first rotation axis by a first magnetic force, and the reflective bracket can be supported in the rotatable bracket in a second direction perpendicular to the first direction by a second magnetic force.

[0028] The camera module may also include a first drive magnet disposed on a rotatable bracket; and a first traction yoke disposed on the housing, and the first magnetic force may be generated by the first drive magnet and the first traction yoke.

[0029] The reflection module may also include a pair of magnets configured to generate a second magnetic force, and the pair of magnets may be configured to rotate together with the rotatable support as the rotatable support rotates.

[0030] The pair of magnets may include: a first magnet disposed on a rotatable support; and a second magnet disposed on a reflective support and facing the first magnet in a second direction.

[0031] The reflection module may also include a second driving magnet and a second driving coil, which are configured to rotate the reflection bracket, and a first magnet may be disposed between the second driving magnet and the second magnet.

[0032] The first magnet can be a traction magnet, and the second magnet can be a second traction yoke.

[0033] In another general aspect, the reflective module includes: a rotatable bracket configured to rotate about a first axis; a reflective bracket coupled to the rotatable bracket and configured to rotate about a second axis perpendicular to the first axis; a reflective member coupled to the reflective bracket; a first magnet disposed on the reflective bracket; and a second magnet disposed on the rotatable bracket, wherein the first magnet and the second magnet face each other in a direction parallel to a third axis, and the third axis is perpendicular to the first axis and the second axis.

[0034] The first magnet can be positioned between the second shaft and the second magnet.

[0035] The reflection module may also include: a driving magnet disposed on the reflection bracket; a driving coil configured to interact with the driving magnet; and a position sensor configured to detect the movement of the driving magnet.

[0036] The first magnet, the second magnet, the drive magnet, and the position sensor can be positioned in a direction parallel to the third axis.

[0037] The reflective module may also include a housing with an internal space and an opening in the housing that exposes the internal space, wherein a rotatable bracket may be disposed in the housing; and the drive coil and position sensor may be exposed to the internal space of the housing through the opening in the housing.

[0038] The reflective module may also include a spherical member through which the second axis passes, wherein the spherical member may be disposed between a first receiving groove formed in a rotatable support and a second receiving groove formed in a reflective support, and the first receiving groove and the second receiving groove may face each other in a direction parallel to the third axis.

[0039] In another general aspect, the camera module includes: the aforementioned reflection module; a first lens module having a first optical axis parallel to a first axis; and a second lens module having a second optical axis parallel to a third axis.

[0040] Other features and aspects will become apparent from the following detailed description, the accompanying drawings, and the claims. Attached Figure Description

[0041] Figure 1 This is a 3D view of the camera module.

[0042] Figure 2 This is an exploded 3D view of the camera module.

[0043] Figure 3 The arrangement relationship between the first lens module, the reflection module, and the second lens module of the camera module is shown.

[0044] Figure 4 This is a reference diagram showing the state of the first lens module connected to the housing of the camera module.

[0045] Figure 5 This is a bottom view of the first lens module.

[0046] Figure 6 It is along Figure 1 A sectional view taken from line VI-VI'.

[0047] Figure 7 This is a perspective view showing the reflection module installed in the housing.

[0048] Figure 8 This is an exploded 3D view of the reflection module.

[0049] Figure 9 This is an exploded perspective view of the rotatable support and the reflective support of the reflective module.

[0050] Figure 10 It is along Figure 7 A sectional view taken by line X-X'.

[0051] Figure 11 It is along Figure 7 The sectional view taken by line XI-XI'.

[0052] Figure 12 This is an exploded stereoscopic view of the second lens module.

[0053] Figure 13 This is a reference diagram showing the second lens module positioned within the housing.

[0054] Figure 14 This is a reference diagram used to explain the positional relationship between the support point of the second lens module and the traction magnet.

[0055] Figure 15 This is a reference diagram used to explain the combination of the housing and the circuit board.

[0056] Figure 16 The state of the reinforcing components disposed in the housing of the camera module, the reflection module, and the second lens module is shown.

[0057] Throughout all the accompanying drawings and detailed descriptions, the same reference numerals denote the same elements. The drawings may not be drawn to scale, and for clarity, illustration, and convenience, the relative dimensions, scale, and depiction of elements in the drawings may be exaggerated. Detailed Implementation

[0058] The following detailed description is provided to aid the reader in fully understanding the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the sequences of operations described herein are merely examples and are not limited to those set forth herein, but may be varied as will become apparent after understanding the disclosure of this application, except for operations that must occur in a specific order. Furthermore, for clarity and conciseness, descriptions of features known in the art may be omitted.

[0059] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways in which the methods, apparatus, and / or systems described herein will become apparent upon understanding the disclosure of this application.

[0060] Throughout the specification, when an element such as a layer, region, or substrate is described as being “on”, “connected to”, or “attached to” another element, it can be directly “on”, “connected to”, or “attached to” another element, or one or more other elements may exist between them. Conversely, when an element is described as being “directly”, “directly connected to”, or “directly attached to” another element, no other elements can exist between them.

[0061] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more.

[0062] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited by these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Thus, without departing from the teachings of the examples described herein, the first component, first part, first region, first layer, or first section mentioned in the examples may also be referred to as a second component, second part, second region, second layer, or second section.

[0063] In this document, spatially relative terms such as “above,” “above,” “below,” and “lower” may be used to describe the relationship between one element and another, as shown in the accompanying drawings. These spatially relative terms are intended to also include different orientations of the device in use or operation, in addition to the orientations depicted in the drawings. For example, if the device in the drawings is flipped, an element described as “above” or “above” another element will be “below” or “lower” than another element. Thus, depending on the spatial orientation of the device, the term “above” includes both above and below orientations. The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used herein will be interpreted accordingly.

[0064] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. The articles “a,” “an,” and “the” are intended to include plural forms as well, unless the context clearly indicates otherwise. The terms “comprising,” “including,” and “having” indicate the presence of stated features, numbers, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, operations, components, elements, and / or combinations thereof.

[0065] Figure 1 This is a 3D view of camera module 100. Figure 2 This is an exploded stereoscopic view of camera module 100. Figure 3 The arrangement of the first lens module 2000, the reflection module 3000, and the second lens module 4000 of the camera module 100 is shown. (Reference) Figures 1 to 3 The camera module 100 may include a housing 1100, a reflection module 3000, multiple lens modules 2000 and 4000, and an image sensor 5000.

[0066] Camera module 100 may include multiple lens modules 2000 and 4000. The multiple lens modules 2000 and 4000 may include a first lens module 2000 and a second lens module 4000 with different optical axes. Light incident on camera module 100 from an external object can pass through the first lens module 2000 and the second lens module 4000 to image sensor 5000.

[0067] The optical axis O1 of the first lens module 2000 (hereinafter referred to as the first optical axis O1) and the optical axis O2 of the second lens module 4000 (hereinafter referred to as the second optical axis O2) may not be parallel to each other. For example, the first lens module 2000 and the second lens module 4000 may be configured such that the first optical axis O1 and the second optical axis O2 intersect each other. The first optical axis O1 and the second optical axis O2 may be substantially perpendicular to each other, but the angle between the first optical axis O1 and the second optical axis O2 is not limited thereto.

[0068] Lenses included in the first lens module 2000 or the second lens module 4000 can be configured to be movable relative to the image sensor 5000. For example, lens 2100 included in the first lens module 2000 can be configured to be movable along the first optical axis O1. Alternatively, a lens included in the second lens module 4000 can be configured to be movable along the second optical axis O2. When a lens included in each of the lens modules 2000 and 4000 is moved, optical image stabilization (OIS) or autofocus (AF) functions of the camera module 100 can be performed. For example, the camera module 100 can perform an autofocus function by moving a lens of the second lens module 4000 in the direction of the second optical axis O2.

[0069] At least one lens included in the first lens module 2000 or the second lens module 4000 can be positioned to be fixed to the housing 1100. For example, in the camera module 100, the lens 2100 included in the first lens module 2000 can be fixed to the housing 1100, and the lens included in the second lens module 4000 can be configured to be movable in the direction of the second optical axis O2.

[0070] In the camera module 100, a reflection module 3000 can be provided to change the propagation direction of light emitted from the first lens module 2000 to a direction parallel to the second optical axis O2. For example, refer to... Figure 2 The reflection module 3000, used to change the light propagation path, can be disposed between the first lens module 2000 and the second lens module 4000. That is, the camera module 100 may include the reflection module 3000 disposed in the optical path from the first lens module 2000 to the second lens module 4000.

[0071] The reflective module 3000 can be housed within the interior space of the housing 1100 to alter the path of light incident on the reflective module 3000. The reflective module 3000 can be understood as including a reflective member 3100 for altering the optical path, components supporting and driving the reflective member 3100, and at least a portion of the housing 1100 housing them.

[0072] The reflective member 3100 of the reflective module 3000 can be configured to change the light propagation path by refracting or reflecting light. For example, the reflective member 3100 can be a prism or mirror that refracts or reflects light to change the light path.

[0073] The reflective member 3100 can alter the light propagation path, directing light emitted from the first lens module 2000 towards the second lens module 4000. For example, the reflective member 3100 can change the propagation path of light incident along the first optical axis O1 to a direction substantially parallel to the second optical axis O2. Therefore, as... Figure 3 As shown, the propagation path of incident light L from outside the camera module 100 into the first lens module 2000 can be changed when passing through the reflection module 3000, so that the light enters the second lens module 4000. The incident light L can be appropriately refracted and enter the image sensor 5000 while passing through the second lens module 4000.

[0074] The reflective member 3100 can be configured to be rotatable or movable within the housing 1100. When the reflective member 3100 is rotated or moved, the path of the incident light L can be appropriately altered. The camera module 100 can perform optical image stabilization (OIS) by rotating or moving the reflective member 3100.

[0075] The reflective member 3100 can be configured to rotate in different directions about multiple rotation axes. For example, the reflective member 3100 can rotate about a first rotation axis R1 parallel to the first optical axis O1, and the reflective member 3100 can also rotate about a second rotation axis R2 perpendicular to the first optical axis O1 and the second optical axis O2. Through this rotation, the reflective member 3100 can change the light propagation path to a direction substantially parallel to the second optical axis O2.

[0076] In the following description, the first rotation axis R1 can be simply referred to as the "first axis", and the second rotation axis R2 can be simply referred to as the "second axis". That is, unless otherwise indicated as the "optical axis", the "first axis" and the "second axis" can be understood as the "first rotation axis" and the "second rotation axis" of the reflection module 3000.

[0077] Furthermore, the axis perpendicular to the first rotation axis R1 and the second rotation axis R2 is defined as the "third axis". For example, the second optical axis O2 can be substantially parallel to the third axis.

[0078] The camera module 100 may include an image sensor 5000, into which light that has passed through the reflection module 3000 and multiple lens modules 2000 and 4000 is incident. The image sensor 5000 can convert the incident light into image information. The image sensor 5000 may be configured such that its light-collecting surface faces the light-emitting surface of the second lens module 4000, and can generate an electrical signal corresponding to the light incident from the second lens module 4000.

[0079] The image sensor 5000 can be housed inside the housing 1100 or disposed outside the housing 1100.

[0080] A filter unit 6000 for filtering at least some of the light incident from the second lens module 4000 may be disposed in front of the image sensor 5000. The filter unit 6000 may include a filter capable of blocking light with a specific wavelength (e.g., an infrared blocking filter). Alternatively, the filter unit 6000 may include a light-shielding member (baffle) for blocking at least some of the light incident from the lens module.

[0081] Despite Figure 2 Not shown, but to make the optical path longer, the camera module 100 may also include another reflective module disposed between the lens module and the image sensor 5000 to change the optical path.

[0082] The housing 1100 may have an internal space for accommodating any one or any combination of two or more of the reflective module 3000, multiple lens modules 2000 and 4000, and image sensor 5000. The housing 1100 may be made of a material with predetermined rigidity to protect the components disposed therein. The housing 1100 may be a box-shaped member with an opening on its upper side. However, the material and shape of the housing 1100 are not limited thereto.

[0083] The camera module 100 may include a shield 1200 covering the upper side of the housing 1100. The shield 1200 may cover the upper side of the opening of the housing 1100 to protect the components inside the housing 1100 from the influence of the external environment.

[0084] The shield 1200 may include an opening 1210 through which incident light passes. For example, as Figure 2 As shown, the shielding cover 1200 may include an opening 1210 disposed between the first lens module 2000 and the reflection module 3000. Light emitted from the first lens module 2000 can enter the reflection module 3000 below the first lens module 2000 through the opening 1210.

[0085] In the camera module 100 according to an exemplary embodiment, one of the plurality of lens modules 2000 and 4000 may be disposed outside the housing 1100, and another of the plurality of lens modules 2000 and 4000 may be disposed inside the housing 1100. For example, as Figure 2 or Figure 3 As shown, the first lens module 2000 can be attached to the outside of the housing 1100 and located above the reflection module 3000, while the second lens module 4000 can be disposed inside the housing 1100. In this case, the light emitting surface of the lens included in the first lens module 2000 can be configured to face the light incident surface of the reflection member 3100 included in the reflection module 3000.

[0086] The first lens module 2000 disposed on the outside of the housing 1100 and the second lens module 4000 disposed inside the housing 1100 may have intersecting optical axes O1 and O2. A reflection module 3000 may be disposed between the first lens module 2000 and the second lens module 4000 to change the path of light propagating in the direction of the first optical axis O1 to the direction of the second optical axis O2. By arranging the multiple lens modules 2000 and 4000 with intersecting optical axes O1 and O2, the total length of the camera module 100 can be reduced compared to the total length of the multiple lens modules 2000 and 4000 arranged parallel to each other along the same optical axis.

[0087] Where some parts of the lens module are located outside the housing 1100, the camera module 100 may also include components for structurally or optically stabilizing the lens module located outside the housing 1100. For example, the camera module 100 may also include a cover 1300 capable of shielding the space between the first lens module 2000 and the housing 1100, which are separated from each other.

[0088] exist Figure 2 and Figure 3 In this example, the second lens module 4000 and the reflection module 3000 are housed within a single housing 1100, but this is merely an example. For instance, lens modules 2000 and 4000, as well as the reflection module 3000, can be housed in multiple separate housings to form individual components, which can then be assembled together to form the complete camera module 100. The image sensor 5000 can also be housed separately from the reflection module 3000 or the lens modules 2000 and 4000 within the housing 1100. In this case, the respective components can be defined as a lens module assembly, a reflection module assembly, and an image sensor assembly, respectively. That is, the camera module 100 can include: a reflection module assembly including the reflection module 3000, a lens module assembly including one or more lens modules 2000 and 4000, and an image sensor assembly.

[0089] Figure 4 This is a reference diagram showing the state of the first lens module 2000 connected to the housing 1100 of the camera module 100. Figure 5 This is a bottom view of the first lens module 2000. Figure 6 It is along Figure 1 A sectional view taken from line VI-VI'. (Note: The reference is missing.) Figures 4 to 6 The first lens module 2000 and the camera module 100 including the first lens module 2000 described correspond to the above reference. Figures 1 to 3 The first lens module 2000 and camera module 100 are described, so any overlapping descriptions can be omitted.

[0090] The first lens module 2000 may include one or more lenses 2100 disposed along a first optical axis O1 and a first lens holder 2200 therein housing the lenses 2100. Light entering from an external object can be refracted by the lenses 2100 of the first lens module 2000 and incident into the reflection module 3000. In the camera module 100, the first lens module 2000 may be disposed in front of the reflection module 3000. The light-emitting surface of the lens 2100 included in the first lens module 2000 may face the reflecting member 3100. Therefore, the first lens module 2000 can emit light received from an external object into the reflection module 3000.

[0091] The first lens module 2000 can be configured such that the first optical axis O1 passes through the reflective member 3100 of the reflective module 3000.

[0092] The first lens module 2000 can be disposed outside the housing 1100, while the reflection module 3000 is disposed inside the housing 1100. For example, refer to Figure 4 The first lens module 2000 can be connected to the upper side of the housing 1100 in which the reflection module 3000 is disposed. However, unlike that shown in the figures, the first lens module 2000 can be disposed in front of the reflection module 3000 inside the housing 1100, wherein the reflection module 3000 is disposed inside the housing 1100.

[0093] In the camera module 100 according to an exemplary embodiment, since the first lens module 2000 and the second lens module 4000 are spaced apart from each other, and the reflection module 3000 is inserted between them, it is important to note that the first optical axis O1 and the second optical axis O2 may be misaligned. Furthermore, it is also important to note that due to tolerances introduced during the manufacturing and assembly processes of the camera module 100, the first lens module 2000 may not be assembled in the correct position. If the first optical axis O1 and the second optical axis O2 are misaligned, or if the first lens module 2000 is not positioned correctly, there is a possibility that the resolution of the camera module 100 may be degraded, or noise may be introduced into the image information acquired by the camera module 100. Therefore, there is a need for a structure that can assemble the first lens module 2000 in the correct position as precisely as possible, given the unavoidable tolerances introduced during the manufacturing process.

[0094] For this purpose, the camera module 100 may include a plurality of guide protrusions 1110 and a plurality of guide slots 2220 for guiding the first lens module 2000 to its assembly position. For example, as Figure 4 As shown, a plurality of guide protrusions 1110 and a plurality of guide grooves 2220 for guiding the first lens module 2000 to the correct assembly position are respectively disposed on and formed therein on the connection surface of the housing 1100 and the first lens module 2000.

[0095] The plurality of guide protrusions 1110 and the plurality of guide grooves 2220 may include a first guide protrusion 1111 disposed on one of the housing 1100 and the first lens module 2000, and a first guide groove 2221 disposed on the other of the housing 1100 and the first lens module 2000.

[0096] The first guide protrusion 1111 may protrude in a direction perpendicular to the connecting surface. For example, as shown... Figure 4 As shown, a first guide protrusion 1111 protruding toward the first lens module 2000 may be disposed on a portion of the upper surface of the housing 1100 to contact the first lens module 2000.

[0097] Multiple guide bumps 1110 can be configured. For example, such as... Figure 4 As shown, the first guide protrusion 1111, the second guide protrusion 1112 and the third guide protrusion 1113 can be disposed on the upper surface of the housing 1100.

[0098] The multiple guide protrusions 1110 can have different shapes. For example, the first guide protrusion 1111 and the second guide protrusion 1112 can have a hemispherical shape, and the third guide protrusion 1113 can have a rectangular shape including a flat surface. However, the specific shape of the multiple guide protrusions 1110 is not limited to the shapes described above.

[0099] Multiple guide grooves 2220 into which multiple guide protrusions 1110 are inserted can be formed in a component that contacts the component on which the guide protrusions 1110 are provided.

[0100] In the process of assembling the first lens module 2000 into the housing 1100, multiple guide protrusions 1110 can contact multiple guide grooves 2220 to guide the first lens module 2000 to the correct position.

[0101] Reference Figure 4 and Figure 5 The alignment structure between the first lens module 2000 and the housing 1100 is described in more detail.

[0102] like Figure 5 As shown in Part A, the first guide protrusion 1111 of the housing 1100 can make contact with the first guide groove 2221 of the first lens module 2000 at three points P1. Therefore, the relative position of the first guide groove 2221 with respect to the first guide protrusion 1111 can be restricted in three directions (X-axis direction, Y-axis direction and Z-axis direction).

[0103] In addition, such as Figure 5 As shown in Part B, the second guide protrusion 1112 of the housing 1100 can contact the second guide groove 2222 of the first lens module 2000 at two points P2. Therefore, the position of the second guide groove 2222 relative to the second guide protrusion 1112 can be restricted in two directions (Y-axis direction and Z-axis direction), and it has a degree of freedom in at least one direction (X-axis direction).

[0104] In addition, such as Figure 5 As shown in section C, the third guide protrusion 1113 of the housing 1100 can make line contact or surface contact with a portion of the surface of the first lens module 2000 at a line or surface P3. Therefore, the position of said portion of the surface relative to the third guide protrusion 1113 can be restricted in one direction (Z-axis direction).

[0105] The first guide groove 2221 and the first guide protrusion 1111 can contact each other to form not only a first support point for the first lens module 2000, but also to provide a reference position for the first lens module 2000. The second guide groove 2222 and the second guide protrusion 1112 can contact each other to form not only a second support point for the first lens module 2000, but also to restrict the first lens module 2000 from rotating on the first support point above the housing 1100. In addition, the third guide protrusion 1113 can contact a portion of the surface of the first lens module 2000 to form a third support point for the first lens module 2000, thereby guiding the first lens module 2000 to be stably and ultimately positioned correctly on the housing 1100.

[0106] The connection structure of the first lens module 2000 can have a degree of freedom in at least one direction (e.g., the X-axis direction) at the second support point formed by the second guide protrusion 1112, and can have a degree of freedom in at least two directions (e.g., the X-axis direction and the Y-axis direction) at the third support point formed by the third guide protrusion 1113. Therefore, even with manufacturing tolerances of the multiple guide protrusions 1110 and the multiple guide grooves 2220, the first lens module 2000 can be stably positioned without deformation or vibration.

[0107] After the first lens module 2000 is placed on the housing 1100 as described above, a process can be performed to completely fix the position of the first lens module 2000. For example, after the first lens module 2000 is aligned in the correct position with adhesive material applied to the bonding surface, the adhesive material on the bonding surface can be cured by a UV treatment process. When the adhesive material is cured, the first lens module 2000 can be firmly fixed to the housing 1100. However, the order of these processes is not limited to the order described above. For example, the process of aligning the first lens module 2000 and the process of curing the adhesive material can be performed simultaneously.

[0108] Because the first lens module 2000 is located outside the housing 1100, a gap g may exist between the shielding cover 1200 and the first lens module 2000. For example, as Figure 6 As shown, the gap g can be formed in the boundary portion between the first lens holder 2200 and the shield 1200 of the first lens module 2000. To prevent unwanted external light or foreign objects from entering the housing 1100 through this gap g, the camera module 100 may also include a cover 1300 that blocks the gap g between the shield 1200 and the first lens module 2000. The cover 1300 can cover the gap g between the first lens module 2000 and the housing 1100 to prevent light leakage or the inflow of foreign objects. The cover 1300 can be hooked onto a tab on the shield 1200 or the housing 1100, but the specific connection method is not limited to this.

[0109] In addition, the cover 1300 may cover at least a portion of the first lens module 2000 to protect the first lens module 2000 from external forces or to protect the connection between the first lens module 2000 and the housing 1100.

[0110] In the following text, reference will be made to Figures 7 to 11 A detailed description is provided of the reflection module 3000 included in the camera module 100. Figure 7 This is a perspective view showing the reflection module 3000 arranged in the housing 1100. Figure 8 This is an exploded 3D view of the reflection module 3000. Figure 9 This is an exploded perspective view of the rotatable bracket 3300 and the reflective bracket 3200 of the reflective module 3000. Figure 10 It is along Figure 7 A sectional view taken by line X-X'. Figure 11 It is along Figure 7 The cross-sectional view is taken from line XI-XI'. (This is due to the reference...) Figures 7 to 11 The described reflection module 3000 and camera module 100 including the reflection module 3000 correspond to the above reference. Figures 1 to 6 The description of the reflection module 3000 and camera module 100 is such that any overlapping descriptions can be omitted.

[0111] refer to Figure 7 and Figure 8 The reflection module 3000 can be disposed in the housing 1100 and can include a reflection member 3100 capable of changing the light path. The reflection member 3100 can include a light incident surface 3110 and a light emitting surface 3120, wherein light is incident from the first lens module 2000 onto the light incident surface 3110 and emitted through the light emitting surface 3120.

[0112] The reflective member 3100 can be configured to move within the housing 1100. For example, the reflective member 3100 can rotate about different rotation axes R1 and R2, such as... Figure 2 As shown. It is important to note that if the reflective member 3100 collides with another structure of the camera module 100 (e.g., the inner wall of the housing 1100 or the shield 1200) while rotating in different directions, the reflective member 3100 may be damaged due to the collision, and may generate noise due to irregular collision sounds.

[0113] To prevent this problem, the reflection module 3000 may include a first damper 3510 and a second damper 3520 protruding in different directions. For example, see reference... Figure 8 The reflection module 3000 may include a first damper 3510 protruding in a first direction and a second damper 3520 protruding in a second direction different from the first direction. The first damper 3510 and the second damper 3520 of the reflection module 3000 may include materials capable of absorbing impact energy, thereby reducing the impact or noise (irregular impact sound) generated when the reflection module 3000 impacts the inner wall of the housing 1100 or the shield 1200.

[0114] refer to Figures 8 to 11 The reflection module 3000 may include a reflection member 3100 capable of changing the optical path, a reflection bracket 3200 that movably supports the reflection member 3100, and a rotatable bracket 3300.

[0115] The reflective element 3100 can refract or reflect incident light to change the light propagation path.

[0116] The reflective member 3100 may include a light-incident surface 3110 through which light is incident, a light-reflecting surface 3130 through which light is reflected, and a light-emitting surface 3120 through which reflected light is emitted. For example, light incident on the light-incident surface 3110 in a first direction (Z-axis direction) may be reflected by the light-reflecting surface 3130 and then emitted in a second direction (Y-axis direction). The first direction (Z-axis direction) may be substantially parallel to the first optical axis O1 of the first lens module 2000, and the second direction (Y-axis direction) may be substantially parallel to the second optical axis O2 of the second lens module 4000.

[0117] The reflective member 3100 may include a light-blocking unit 3111, which blocks unwanted light to reduce glare. For example, Figure 8 As shown, a light-blocking unit 3111 for blocking unwanted light can be disposed along the edge of the light-incident surface 3110 of the reflective member 3100. However, the position of the light-blocking unit 3111 is not limited to the position shown, and it can be disposed on the light-emitting surface 3120. Furthermore, although not shown in the figures, a light-blocking member capable of performing a similar function to the light-blocking unit 3111 can be disposed independently of the light-blocking unit 3111, spaced apart from the reflective member 3100. For example, the light-blocking member can be a baffle disposed between the reflective member 3100 and each of the lens modules 2000 and 4000.

[0118] The reflective member 3100 may be disposed in the reflective support 3200. The reflective support 3200 may rotate or move while supporting the reflective member 3100. For example, the reflective support 3200 may rotate about a second rotation axis R2 passing through at least two ball members 3430, and therefore the reflective member 3100 disposed in the reflective support 3200 may also rotate together with the reflective support 3200.

[0119] The reflector module 3000 may further include a rotatable bracket 3300 that movably or rotatably supports the reflector bracket 3200. The rotatable bracket 3300 may be configured not only to rotatably support the reflector bracket 3200, but also to rotate or move relative to the housing 1100. For example, the reflector bracket 3200 may be rotatably supported in the rotatable bracket 3300 by at least two ball members 3430 forming a rotation axis between the reflector bracket 3200 and the rotatable bracket 3300. Furthermore, the rotatable bracket 3300 may be supported in the housing 1100 by at least one ball member 3410 inserted between the rotatable bracket 3300 and the housing 1100, and thus be rotatable relative to the housing 1100 about another rotation axis formed by the at least one ball member 3410. For the purpose of distinguishing the rotation axes from each other in the following description, the rotation axis of the rotatable bracket 3300 will be referred to as... Figure 2 The first rotating axis R1 shown, and the rotating axis of the reflector bracket 3200 will be referred to as Figure 2 The second rotation axis R2 is shown in the figure.

[0120] In the reflection module 3000 according to an exemplary embodiment, the first rotation axis R1 and the second rotation axis R2 may be different from each other. For example, the first rotation axis R1 and the second rotation axis R2 may be substantially perpendicular to each other.

[0121] The first rotation axis R1 can pass through the light incident surface 3110 and the light reflecting surface 3130 of the reflective member 3100. The second rotation axis R2 can be substantially parallel to the light reflecting surface 3130 of the reflective member 3100. For example, the second rotation axis R2 can be disposed on the light reflecting surface 3130, or it can be disposed parallel to the light reflecting surface 3130 at a predetermined distance.

[0122] In the reflection module 3000, the first rotation axis R1 and the second rotation axis R2 can be configured to intersect each other at a point. In this case, the point where the first rotation axis R1 and the second rotation axis R2 intersect each other can be located on the light reflecting surface 3130 of the reflection member 3100, or near the light reflecting surface 3130.

[0123] When the reflective module 3000 is in the neutral position, the light incident surface 3110 of the reflective member 3100 can be substantially perpendicular to the first optical axis O1 of the first lens module 2000, and the light emitting surface 3120 of the reflective member 3100 can be substantially perpendicular to the second optical axis O2 of the second lens module 4000. In this case, the first rotation axis R1 of the reflective module 3000 can be substantially aligned with the first optical axis O1, and the second rotation axis R2 of the reflective module 3000 can be perpendicular to the first optical axis O1 and the second optical axis O2. Similar to the intersection between the first rotation axis R1 and the second rotation axis R2, the intersection between the first optical axis O1 and the second optical axis O2 can also be set on the light reflecting surface 3130 of the reflective member 3100, or can be set to be parallel to the light reflecting surface 3130 at a predetermined distance.

[0124] Even if the camera module 100 shakes under the action of an external force and the light is incident in a direction that is not aligned with the first optical axis O1, the reflective member 3100 can be rotated appropriately to change the direction of light propagation to be substantially parallel to the second optical axis O2.

[0125] The reflective module 3000 may also include a support member that supports the reflective bracket 3200 on the rotatable bracket 3300. For example, the support member may include a pair of magnets 3240 and 3340 facing each other to generate a magnetic attraction between them, and the reflective bracket 3200 may be supported in the rotatable bracket 3300 by means of the magnetic attraction generated between the pair of magnets 3240 and 3340.

[0126] The pair of magnets 3240 and 3340 can be independently mounted on the reflective bracket 3200 and the rotatable bracket 3300, respectively. For example, as Figure 8 and Figure 9 As shown, the pair of magnets 3240 and 3340 may include a traction yoke 3240 disposed on the reflective bracket 3200 and a traction magnet 3340 disposed on the rotatable bracket 3300. In this case, the traction magnet 3340 and the traction yoke 3240 can generate a magnetic attraction force for attracting each other, and the reflective bracket 3200 can be supported in the rotatable bracket 3300 by means of the magnetic attraction force via a ball member 3430 inserted between the reflective bracket 3200 and the rotatable bracket 3300.

[0127] However, the configuration of the pair of magnets 3240 and 3340 is not limited to the configuration described above. For example, the traction magnet 3340 and the traction yoke 3240 can be respectively mounted on the reflective bracket 3200 and the rotatable bracket 3300. Alternatively, both the pair of magnets 3240 and 3340 can be traction magnets.

[0128] The support components are not limited to the magnets 3240 and 3340 mentioned above, and can have any configuration, as long as the reflective bracket 3200 can be movably supported in the rotatable bracket 3300.

[0129] In an exemplary embodiment, the reflection module 3000 may include drive units 3230 and 3330 that respectively drive the reflection bracket 3200 and the rotatable bracket 3300. For example, as Figure 8 As shown, the reflection module 3000 may include a first driving unit 3330 for driving the rotatable bracket 3300 and a second driving unit 3230 for driving the reflection bracket 3200.

[0130] Each of the first drive unit 3330 and the second drive unit 3230 may include a drive coil and a drive magnet. For example, the first drive unit 3330 may rotate the rotatable bracket 3300 by electromagnetic interaction between the first drive coil 3332 and the first drive magnet 3331 facing each other. Similarly, the second drive unit 3230 may rotate the reflective bracket 3200 by electromagnetic interaction between the second drive coil 3232 and the second drive magnet 3231 facing each other.

[0131] In the camera module 100, the driving magnet and the driving coil can be respectively mounted on two components that move relative to each other. For example, the first driving magnet 3331 can be mounted on the rotatable bracket 3300, and the first driving coil 3332 can be mounted on the housing 1100. The second driving magnet 3231 can be mounted on the reflective bracket 3200, and the second driving coil 3232 can be mounted on the housing 1100.

[0132] Drive units 3230 and 3330 may include position sensors 3233 and 3333, respectively, capable of detecting the amount of movement of drive magnets 3231 and 3331. For example, the first drive unit 3330 may include a first position sensor 3333 facing the first drive magnet 3331. Figure 8 As shown, the first position sensor 3333 can be disposed next to and parallel to the first drive coil 3332, or disposed inside the first drive coil 3332. Similarly, the second drive unit 3230 may include a second position sensor 3233 facing the second drive magnet 3231. Figure 8 As shown, the second position sensor 3233 can be disposed next to and parallel to the second drive coil 3232, or disposed inside the second drive coil 3232.

[0133] In the neutral position of the reflection module 3000, position sensors 3233 and 3333 can be positioned to face the neutral regions 3231a and 3331a of the driving magnets 3231 and 3331, respectively. Each of the neutral regions 3231a and 3331a of the driving magnets 3231 and 3331 can be a boundary region between two different magnetic poles (i.e., the N pole and the S pole).

[0134] The drive units 3230 and 3330 may also include a first yoke 3334 and a second yoke 3234 facing the drive magnets 3231 and 3331, respectively. For example, as Figure 8 As shown, the first yoke 3334 can be disposed on the rear surface of the first driving coil 3332 facing the first driving magnet 3331. The second yoke 3234 can be disposed on the rear surface of the second driving coil 3232 facing the second driving magnet 3231. The first yoke 3334 and the second yoke 3234 can be used to concentrate the magnetic flux of the driving magnet.

[0135] However, the configuration of the drive units 3230 and 3330 of the reflection module 3000 is not limited to the above configuration, and the drive units 3230 and 3330 of the reflection module 3000 can have any configuration as long as the reflection bracket 3200 and the rotatable bracket 3300 can move.

[0136] The rotatable bracket 3300 included in the reflective module 3000 will be described in more detail below.

[0137] The reflective module 3000 may include a rotatable bracket 3300 rotatable relative to the housing 1100. The rotatable bracket 3300 is rotatable relative to the housing 1100 and rotatably supports the reflective bracket 3200 and the reflective member 3100. For example, the rotatable bracket 3300 may be configured to rotate about a first rotation axis R1, and therefore, the reflective bracket 3200 and the reflective member 3100 may also rotate together with the rotatable bracket 3300 about the first rotation axis R1.

[0138] Multiple ball components 3410 and 3420 that rotatably support the rotatable bracket 3300 can be disposed between the rotatable bracket 3300 and the housing 1100.

[0139] The plurality of ball members 3410 and 3420 may include a first ball member 3410 forming a rotation axis (hereinafter referred to as the first rotation axis R1) of the rotatable support 3300, and a guide ball member 3420 that helps the rotatable support 3300 rotate stably.

[0140] The first ball member 3410 can form a first rotation axis R1, while rotating in situ with its position fixed relative to the housing 1100. Therefore, the first rotation axis R1 can pass through the first ball member 3410.

[0141] The first rotation axis R1 can be substantially aligned with the first optical axis O1 of the first lens module 2000 facing the reflection module 3000. Therefore, an imaginary line extending along the first optical axis O1 can pass through the first spherical member 3410.

[0142] The first ball member 3410 can be accommodated in the first receiving groove 1120 of the housing 1100. To fix the position of the first ball member 3410, the first receiving groove 1120 can be configured to support the first ball member 3410 at three or more points. For example, the first receiving groove 1120 can be a groove having at least three inclined surfaces, and the first ball member 3410 can be supported to contact each point on the inclined surfaces. Thus, the first ball member 3410 can be supported by at least three points in the first receiving groove 1120. Furthermore, a groove 3321 facing the first receiving groove 1120 and having the same shape as the first receiving groove 1120 can be formed in the rotatable support 3300. Therefore, the first ball member 3410 can form a first rotation axis R1 while rotating in situ in a sandwiched state between the rotatable support 3300 and the housing 1100.

[0143] One or more guide ball components 3420 can be provided. For example, such as Figure 8 and Figure 9 As shown, the reflection module 3000 may include two guide ball members 3420 spaced apart from the first ball member 3410. The guide ball members 3420 may roll relative to the housing 1100 or the rotatable support 3300 and may support the rotatable support 3300 to make it rotatable while maintaining a predetermined distance between the bottom surface of the rotatable support 3300 and the bottom surface of the housing 1100.

[0144] The guide ball member 3420 can be accommodated in a guide groove 1130 (hereinafter referred to as the third guide groove) formed in the housing 1100. The guide ball member 3420 can be supported at two points or one point in the third guide groove 1130. The guide ball member 3420 can move along the third guide groove 1130. The third guide groove 1130 can be configured to extend in the circumferential direction of the first rotation axis R1. Alternatively, the third guide groove 1130 can be configured to extend in the tangential direction around the circumference of the first rotation axis R1.

[0145] Another guide groove 3322 (hereinafter referred to as the fourth guide groove) for accommodating the guide ball member 3420 can be formed on the lower surface of the rotatable bracket 3300. Therefore, the guide ball member 3420 can roll in a sandwich state between the fourth guide groove 3322 of the rotatable bracket 3300 and the third guide groove 1130 of the housing 1100, while supporting the rotatable bracket 3300.

[0146] The driving force for rotating the rotatable support 3300 can be generated by the first driving unit 3330. For example, the first driving unit 3330 may include a first driving magnet 3331 disposed in the rotatable support 3300, a first driving coil 3332 disposed in the housing 1100, and a first yoke 3334, and the driving force can be generated by the electromagnetic interaction between the first driving magnet 3331 and the first driving coil 3332.

[0147] The first driving magnet 3331 and the first driving coil 3332 can be arranged to face each other in a first direction (Z-axis direction). The first direction (Z-axis direction) can be a direction that is substantially parallel to the first rotation axis R1, which is the rotation axis of the rotatable support 3300.

[0148] The first drive coil 3332 can be disposed on the bottom surface of the housing 1100. A plurality of first drive coils 3332 can be arranged spaced apart from each other in the circumferential direction of the first rotation axis R1, or the first drive coils 3332 can be configured as integrated coils having portions extending in the circumferential direction of the first rotation axis R1. The first drive coil 3332 can be disposed between the first ball member 3410 and the guide ball member 3420.

[0149] A first driving magnet 3331 may be disposed on the lower surface of the rotatable support 3300, facing the first driving coil 3332. The first driving magnet 3331 may be configured such that different magnetic poles are arranged sequentially along the rotation direction of the rotatable support 3300. For example, the first driving magnet 3331 may be configured such that its surface facing the first driving coil 3332 has an N pole, a neutral region, and a S pole arranged sequentially along the rotation direction of the rotatable support 3300.

[0150] The first drive unit 3330 may include a first position sensor 3333 for detecting the position of the first drive magnet 3331. The first position sensor 3333 may be a magnetic sensor disposed inside or outside the first drive coil 3332. For example, the first position sensor 3333 may include a Hall sensor. The first position sensor 3333 can detect the amount of movement of the first drive magnet 3331 by detecting the change in the magnetic flux passing through the first position sensor 3333.

[0151] When the rotatable bracket 3300 is in the neutral position, the first position sensor 3333 can be configured to face the neutral region 3331a of the first driving magnet 3331. That is, the first position sensor 3333 can be configured to face the boundary region between the N pole and the S pole of the first driving magnet 3331, thereby effectively detecting the displacement of the first driving magnet 3331.

[0152] Multiple first position sensors 3333 can be arranged to detect position changes of the first drive magnet 3331 more accurately by comparing the signals detected by the first position sensors 3333 with each other.

[0153] The first driving unit 3330 may include a first yoke 3334 facing the first driving magnet 3331. For example, as Figure 8 As shown, the first yoke 3334 can be disposed on the rear surface of the first coil so as to face the first driving magnet 3331 in the first direction (Z-axis direction).

[0154] The first yoke 3334 can be made of a magnetic material. Therefore, the first yoke 3334 can not only be used to concentrate the magnetic lines of force generated by the first driving magnet 3331, but also to generate magnetic attraction through interaction with the first driving magnet 3331. In the following text, the magnetic force generated between the first driving magnet 3331 and the first yoke 3334 is defined as the first magnetic force.

[0155] Since the first yoke 3334 and the first driving magnet 3331 are arranged to face each other in the first direction (Z-axis direction), the first yoke 3334 can attract the first driving magnet 3331 in the first direction (Z-axis direction). That is, the first yoke 3334 can be used as a traction yoke. The rotatable support 3300 can be supported in the housing 1100 in the first direction (Z-axis direction) by the first magnetic force generated between the first yoke 3334 and the first driving magnet 3331.

[0156] However, the support structure of the rotatable bracket 3300 is not limited to the structure described above. For example, in another embodiment, the reflective module 3000 may also include a separate magnet (not shown) that supports the rotatable bracket 3300 by generating a magnetic attraction force together with the first yoke 3334.

[0157] The reflective module 3000 may include a reflective bracket 3200 rotatable relative to the rotatable bracket 3300. A reflective member 3100 may be attached to the reflective bracket 3200 to rotate together with the reflective bracket 3200 relative to the rotatable bracket 3300. For example, the reflective bracket 3200 may be configured to rotate about a second rotation axis R2 substantially perpendicular to the first rotation axis R1, and therefore the reflective bracket 3200 and the reflective member 3100 may also rotate together with the rotatable bracket 3300 about the second rotation axis R2.

[0158] Multiple spherical components 3430 that guide the rotation of the reflective bracket 3200 can be disposed between the reflective bracket 3200 and the rotatable bracket 3300. For example, as... Figure 8As shown, a plurality of second ball components 3430 forming the second rotation axis R2 can be disposed between the reflective bracket 3200 and the rotatable bracket 3300, wherein the second rotation axis R2 is the rotation axis of the reflective bracket 3200.

[0159] The plurality of second ball components 3430 can be arranged to be spaced apart from each other in a direction perpendicular to the first rotation axis R1.

[0160] Multiple second spherical components 3430 can be arranged to be spaced apart from each other in a direction perpendicular to the first optical axis O1 of the first lens module 2000 and the second optical axis O2 of the second lens module 4000.

[0161] Multiple second spherical components 3430 can form a second rotation axis R2, while rotating in situ with their positions fixed relative to the reflective support 3200 or the rotatable support 3300. The second rotation axis R2 can pass through the multiple second spherical components 3430.

[0162] The reflective member 3100 may be disposed between the second spherical members 3430. In this case, a plane extending from the light-reflecting surface 3130 of the reflective member 3100 may pass through the second spherical members 3430. However, the arrangement of the reflective member 3100 is not limited to the above arrangement. For example, the reflective member 3100 may be configured such that the light-reflecting surface 3130 faces at least one of the second spherical members 3430.

[0163] The rotatable support 3300 and the reflective support 3200 may each include receiving grooves 3310 and 3220 capable of accommodating the second spherical member 3430. For example, the rotatable support 3300 may include a second receiving groove 3310 disposed in its surface facing the reflective support 3200 to accommodate a portion of the second spherical member 3430, and the reflective support 3200 may include a third receiving groove 3220 disposed in its surface facing the rotatable support 3300 to accommodate another portion of the second spherical member 3430. The second receiving groove 3310 of the rotatable support 3300 and the third receiving groove 3220 of the reflective support 3200 may be arranged to face each other in a second direction (Y-axis direction). A plurality of second receiving grooves 3310 and a plurality of third receiving grooves 3220 may be arranged to correspond to the number of second spherical members 3430.

[0164] In an exemplary embodiment, to precisely align the relative positions of the reflective support 3200 and the rotatable support 3300, at least one of the plurality of second receiving grooves 3310 and the plurality of third receiving grooves 3220 may be configured to support the second ball member 3430 at three or more points. For example, at least one of the plurality of second receiving grooves 3310 may be a groove having at least three inclined surfaces, while another may be a groove having at least two inclined surfaces. The second ball member 3430 may be supported to contact each point on the inclined surfaces. Thus, the second ball member 3430 may be supported by at least three points in a second receiving groove 3310 having three inclined surfaces, and may be supported by two points in a second receiving groove 3310 having two inclined surfaces. According to this support structure, the second ball member 3430 has a degree of freedom in one direction in any of the plurality of second receiving grooves 3310, making it possible to overcome defects caused by manufacturing tolerances.

[0165] The driving force for rotating the reflector bracket 3200 can be generated by the second driving unit 3230. For example, the second driving unit 3230 may include a second driving magnet 3231 disposed on one of the reflector bracket 3200 and the housing 1100, and a second driving coil 3232 disposed on the other of the reflector bracket 3200 and the housing 1100, and the driving force can be generated through electromagnetic interaction between the second driving magnet 3231 and the second driving coil 3232. However, the arrangement of the second driving magnet 3231 and the second driving coil 3232 is not limited to the arrangement described above. For example, the second driving magnet 3231 may be disposed on the housing 1100, and the second driving coil 3232 may be disposed on the reflector bracket 3200. Alternatively, the second driving magnet 3231 may be disposed on the reflector bracket 3200, and the second driving coil 3232 may be disposed on the rotatable bracket 3300.

[0166] The second driving magnet 3231 and the second driving coil 3232 can be configured to face each other in a second direction (Y-axis direction). The second direction (Y-axis direction) can be substantially parallel to the second optical axis O2, which is the optical axis of the second lens module 4000. Alternatively, the second direction (Y-axis direction) can be substantially perpendicular to the first rotation axis R1, which is the rotation axis of the rotatable support 3300.

[0167] In the second driving magnet 3231, different magnetic poles can be arranged sequentially along the rotation direction of the reflector 3200. For example, the second driving magnet 3231 can be magnetized to have an N pole, a neutral region, and an S pole sequentially along the rotation direction of the reflector 3200.

[0168] The second drive coil 3232 can be disposed on the side wall of the housing 1100 facing the second drive magnet 3231. The second yoke 3234 can be disposed on the rear surface of the second drive coil 3232, so that the magnetic lines of force generated by the second drive magnet 3231 pass more strongly through the second drive coil 3232. The second yoke 3234 can be made of magnetic material to concentrate the magnetic lines of force generated by the second drive magnet 3231.

[0169] The second driving unit 3230 may include a second position sensor 3233 for detecting the position of the second driving magnet 3231. For example, the reflection module 3000 may include the second position sensor 3233, which is disposed inside or outside the second driving coil 3232 to face the second driving magnet 3231.

[0170] The second position sensor 3233 can be a magnetic sensor. For example, the second position sensor 3233 may include a Hall sensor. The second position sensor 3233 can detect the amount of movement of the second driving magnet 3231 by detecting the change in the magnetic flux passing through the second driving magnet 3231. When the reflector bracket 3200 is in the neutral position, the second position sensor 3233 can be configured to face the neutral region 3231a of the second driving magnet 3231. That is, the second position sensor 3233 can be configured to face the boundary region between the N pole and the S pole of the second driving magnet 3231, thereby effectively detecting the displacement of the second driving magnet 3231.

[0171] Multiple second position sensors 3233 can be configured to more accurately detect position changes of the second drive magnet 3231 by comparing the signals detected by the second position sensors 3233 with each other. When multiple second position sensors 3233 are provided, at least two second position sensors 3233 can be arranged parallel to each other in a direction perpendicular to the second rotation axis R2.

[0172] The reflective bracket 3200 can be supported in the rotatable bracket 3300 by means of the magnetic force (hereinafter referred to as the second magnetic force) generated by a pair of magnets 3240 and 3340. The pair of magnets 3240 and 3340 may include a first magnet 3240 fixed to the reflective bracket 3200 and a second magnet 3340 fixed to the rotatable bracket 3300 and magnetically interacting with the first magnet 3240.

[0173] In an exemplary embodiment, the first magnet 3240 may be a traction yoke disposed on the reflective bracket 3200, while the second magnet 3340 may be a traction magnet disposed on the rotatable bracket 3300. By means of the magnetic attraction between the traction magnet 3340 and the traction yoke 3240, the reflective bracket 3200 can be supported within the rotatable bracket 3300, wherein the second ball member 3430 is inserted between the reflective bracket 3200 and the rotatable bracket 3300. In this case, the traction magnet 3340 may be a separate magnet different from the second drive magnet 3231 of the second drive unit 3230. For example, as... Figure 9 or Figure 10 As shown, the traction magnet 3340 can be separately mounted on the rotatable bracket 3300 from the second drive magnet 3231 mounted on the reflector bracket 3200. By providing the second drive magnet 3231 and the traction magnet 3340 respectively as described above, a more precise and stable support structure can be formed.

[0174] In the reflection module 3000, the traction magnet 3340 and the traction yoke 3240 can be arranged to face each other in a second direction (Y-axis direction). The second direction (Y-axis direction) can be a direction perpendicular to the first direction (Z-axis direction), wherein the first direction (Z-axis direction) is the direction in which the first drive magnet 3331 and the first drive coil 3332 of the rotatable bracket 3300 face each other. Since the traction magnet 3340 and the traction yoke 3240 are arranged to face each other in the second direction (Y-axis direction), the reflection bracket 3200 can be supported in the rotatable bracket 3300 in the second direction (Y-axis direction) by means of a second magnetic force.

[0175] refer to Figure 10 The second driving magnet 3231 and the traction magnet 3340 can be arranged spaced apart from each other. The reflective bracket 3200 may have an extension 3210 extending between the rotatable bracket 3300 and the housing 1100, and the second driving magnet 3231 may be disposed on the extension 3210. Therefore, by avoiding the traction magnet 3340 of the rotatable bracket 3300, the second driving magnet 3231 can be disposed as close as possible to the second driving coil 3232. Furthermore, according to this structure, the second driving magnet 3231 can directly face the second driving coil 3232 in the second direction (Y-axis direction), while the traction magnet 3340 and the traction yoke 3240 can also directly face each other in the second direction (Y-axis direction).

[0176] The second driving magnet 3231 can be disposed between the traction magnet 3340 and the second driving coil 3232. For example, as Figure 10 As shown, the second driving magnet 3231 can be disposed in the portion of the extension 3210 of the reflector bracket 3200 facing the housing 1100.

[0177] However, the support structure of the reflector 3200 is not limited to the structure described above. For example, in another embodiment, the traction magnet 3340 and the traction yoke 3240 may be arranged to face each other in the second direction (Y-axis direction), and the second drive magnet 3231 may be disposed on the side surface of the reflector 3200 to face the second drive coil 3232 disposed on the housing 1100 in the third direction (X-axis direction). In this case, the third direction (X-axis direction) may be a direction perpendicular to both the first direction (Z-axis direction) and the second direction (Y-axis direction). Furthermore, the third direction (X-axis direction) may be substantially parallel to the second rotation axis R2 of the reflector 3200.

[0178] When the reflective member 3100, reflective support 3200, or rotatable support 3300 included in the reflective module 3000 moves, there is a risk of collision with other components of the adjacent reflective module 3000 (e.g., the first lens module 2000 and the second lens module 4000). Specifically, there is a problem that fragile optical elements may be damaged when the lenses and reflective member 3100 included in the lens modules 2000 and 4000 collide with each other. Therefore, a structure capable of preventing this problem is needed.

[0179] In an exemplary embodiment, the reflection module 3000 may include dampers 3510 and 3520, which are capable of reducing impact energy or noise generated when colliding with another component of the camera module 100. For example, the reflection module 3000 may include a first damper 3510 and a second damper 3520 protruding from the reflection bracket 3200 in a first direction (Z-axis direction) and a second direction (Y-axis direction), respectively.

[0180] The first damper 3510 can protrude from the reflector bracket 3200 toward the first lens module 2000. When the reflector bracket 3200 rotates about the second rotation axis R2, the first damper 3510 may collide with the shield 1200 above the housing 1100.

[0181] When the reflector bracket 3200 is in the neutral position, the distance between the first damper 3510 and the shield 1200 can be less than the distance between the reflector 3100 and the first lens module 2000. Therefore, when the reflector bracket 3200 rotates, the first damper 3510 can collide with the shield 1200 before the reflector 3100 collides with the first lens module 2000.

[0182] The second damper 3520 can protrude from the reflector bracket 3200 toward the second lens module 4000. When the reflector bracket 3200 rotates about the first rotation axis R1, the second damper 3520 can collide with the housing 1100 in front of the reflector member 3100 to absorb impact energy.

[0183] When an impact is applied to the camera module 100 from the outside, dents may appear in the reflector module 3000. For example, there is a problem that when an external impact is transmitted to the contact surface between the ball member and the receiving groove or guide groove, the receiving groove or guide groove may deform, and therefore, the relative position of the rotatable bracket 3300 and the housing 1100 or the relative position of the reflector bracket 3200 and the rotatable bracket 3300 may change.

[0184] The presence of dents can become an obstacle to precise control of the rotation of the reflective module 3000. For example, in a reflective module 3000 designed such that the second position sensor 3233 faces the neutral region 3231a of the second drive magnet 3231 when the reflective bracket 3200 is in the neutral position, if the positions of the reflective bracket 3200 and the second drive magnet 3231 are altered by the dent, and the second position sensor 3233 faces a portion of the second drive magnet 3231 other than the neutral region 3231a (e.g., the N pole or the S pole), the sensing accuracy of the second position sensor 3233 may be reduced.

[0185] Therefore, a structure is needed that can accurately sense the amount of rotation of the reflective bracket 3200 or the rotatable bracket 3300 even if dents occur.

[0186] In an exemplary embodiment, the reflection module 3000 may be configured such that even if the position of the rotatable bracket 3300 changes due to the indentation, the first position sensor 3333 faces the neutral region 3331a of the first drive magnet 3331.

[0187] refer to Figure 8 or Figure 10 The first position sensor 3333, the first driving magnet 3331, and the first yoke 3334 of the reflection module 3000 can be arranged parallel to each other along a first direction (Z-axis direction). For example, when the rotatable bracket 3300 is in the neutral position, the first position sensor 3333 can be arranged to face the neutral region 3331a of the first driving magnet 3331 in the first direction (Z-axis direction), and the first driving magnet 3331 and the first yoke 3334 can also be arranged to face each other in the first direction (Z-axis direction). That is, the direction in which the first position sensor 3333 and the first driving magnet 3331 face each other can be the same as the direction in which the rotatable bracket 3300 is supported in the housing 1100 by means of a first magnetic force.

[0188] When the first receiving groove 1120 is pressed down due to the appearance of the dent, the rotatable bracket 3300 can also be pulled toward the housing 1100 in the first direction (Z-axis direction) by means of the magnetic attraction (i.e., the first magnetic force) between the first driving magnet 3331 and the first yoke 3334. In this case, although the distance between the first position sensor 3333 and the first driving magnet 3331 in the first direction (Z-axis direction) is reduced, the first position sensor 3333 can still face the neutral region 3331a of the first driving magnet 3331. Therefore, even with the appearance of the dent, the first position sensor 3333 still faces the neutral region 3331a of the first driving magnet 3331, making it possible to accurately detect the change in magnetic flux of the first driving magnet 3331 passing through the first position sensor 3333 based on the movement of the N pole or the S pole, and to accurately measure the amount of movement of the rotatable bracket 3300.

[0189] In an exemplary embodiment, the reflection module 3000 may be configured such that even if the relative positions of the reflection bracket 3200 and the rotatable bracket 3300 change due to the indentation, the second position sensor 3233 is also positioned to face the neutral region 3231a of the second drive magnet 3231.

[0190] refer to Figure 8 , Figure 9 and Figure 11 The second position sensor 3233, the second driving magnet 3231, and the pair of magnets 3240 and 3340 of the reflection module 3000 can be arranged parallel to each other in the second direction (Y-axis direction). For example, when the reflection bracket 3200 is in the neutral position, the second position sensor 3233 can be arranged to face the neutral region 3231a of the second driving magnet 3231 in the second direction (Y-axis direction), and the pair of magnets 3240 and 3340, respectively arranged on the reflection bracket 3200 and the rotatable bracket 3300, can also be arranged to face each other in the second direction (Y-axis direction). That is, the direction in which the second position sensor 3233 and the second driving magnet 3231 face each other can be the same as the direction in which the reflection bracket 3200 is supported in the rotatable bracket 3300 by means of the second magnetic force.

[0191] When the shape of the second receiving groove 3310 or the third receiving groove 3220 is deformed due to the appearance of the indentation, the reflective bracket 3200 can also be pulled toward the rotatable bracket 3300 in the second direction (Y-axis direction) by means of the magnetic attraction (i.e., the second magnetic force) between a pair of magnets 3240 and 3340. Therefore, the second driving magnet 3231 of the reflective bracket 3200 can be closer to the second position sensor 3233 disposed on the housing 1100 in the second direction (Y-axis direction).

[0192] Although the distance between the second position sensor 3233 and the second driving magnet 3231 in the second direction (Y-axis direction) is reduced, the second position sensor 3233 can still face the neutral region 3231a of the second driving magnet 3231. Therefore, even with a dent, the second position sensor 3233 still faces the neutral region 3231a of the second driving magnet 3231, enabling precise detection of changes in the magnetic flux through the second position sensor 3233 of the second driving magnet 3231 based on the movement of the N or S pole, and accurate measurement of the amount of movement of the reflector bracket 3200.

[0193] In the following text, reference will be made to Figures 12 to 15 The description includes a second lens module 4000 in the camera module 100. Figure 12 This is an exploded stereoscopic view of the second lens module 4000. Figure 13 This is a reference diagram showing the state in which the second lens module 4000 is disposed in the housing 1100. Figure 14 This is a reference diagram used to explain the positional relationship between the support point and the traction magnet of the second lens module 4000. Figure 15 This is a reference diagram used to explain the combination of housing 1100 and circuit board. Because the reference... Figures 12 to 15 The second lens module 4000 and the camera module 100 including the second lens module 4000 described correspond to the above reference. Figures 1 to 11 The second lens module 4000 and camera module 100 are described, so any overlapping descriptions can be omitted.

[0194] The camera module 100 may include a second lens module 4000 through which light emitted from the reflection module 3000 passes. The second lens module 4000 may include one or more lenses 4100 disposed along a second optical axis O2. Light emitted from the reflection module 3000 may be refracted by the one or more lenses 4100 of the second lens module 4000 and incident on the image sensor 5000 behind the second lens module 4000.

[0195] refer to Figure 12The second lens module 4000 may include one or more lenses 4100, a second lens holder 4200 supporting the one or more lenses 4100, and a third drive unit 4300 generating a driving force capable of moving the second lens holder 4200 relative to the housing 1100. One or more lenses 4100 of the second lens module 4000 can be moved in a direction parallel to the second optical axis O2 by the third drive unit 4300. However, the configuration of the second lens module 4000 is not limited to the configuration shown in the figures. For example, the second lens module 4000 may include a plurality of sub-lens modules, each sub-lens module accommodating one or more lenses, and the sub-lens modules may be configured to move independently of each other in a direction parallel to the second optical axis O2.

[0196] The third drive unit 4300 may include a third drive magnet 4310 and a third drive coil 4320 facing each other, and a third position sensor 4330 for detecting the amount of motion of the third drive magnet 4310.

[0197] refer to Figure 12 The third driving magnet 4310 can be disposed on the second lens support 4200 of the second lens module 4000, and the third driving coil 4320 can be disposed on the housing 1100. The third driving coil 4320 and the third driving magnet 4310 can face each other in a direction perpendicular to the second optical axis O2. Through the electromagnetic interaction between the third driving coil 4320 and the third driving magnet 4310, the second lens support 4200 can move in a direction parallel to the second optical axis O2.

[0198] The surface of the third driving magnet 4310 facing the third driving coil 4320 can be configured such that different magnetic poles are arranged sequentially along the moving direction of the second lens module 4000.

[0199] The third position sensor 4330 can be disposed inside or outside the third drive coil 4320, facing the third drive magnet 4310. The third position sensor 4330 can be a magnetic sensor. For example, the third position sensor 4330 can include a Hall sensor.

[0200] Multiple third position sensors 4330 can be configured. For example, such as Figure 12 As shown, multiple third position sensors 4330 can be arranged parallel to each other along the moving direction of the second lens module 4000. According to this position sensor arrangement, even if the third drive magnet 4310 moves within the housing 1100 over a long range, the position of the third drive magnet 4310 can be accurately detected.

[0201] The second lens module 4000 may include a plurality of ball joints 4600 disposed between the second lens support 4200 and the housing 1100. For example, Figure 12 and Figure 13 As shown, three ball components 4610, 4620 and 4630 can be disposed between the second lens support 4200 and the housing 1100, thereby enabling the second lens support 4200 to move smoothly within the housing 1100.

[0202] The plurality of ball members 4600 may include a third ball member 4610, a fourth ball member 4620, and a fifth ball member 4630 arranged spaced apart from each other. The plurality of ball members 4600 may roll along a guide groove 4230 (hereinafter referred to as the fifth guide groove) formed in the second lens holder 4200 and a guide groove 1140 (hereinafter referred to as the sixth guide groove) formed on the bottom surface of the housing 1100.

[0203] To prevent impact and noise when the second lens module 4000 collides with the inner surface of the housing 1100 during movement, multiple dampers 4220 can be installed on the second lens bracket 4200.

[0204] The second lens module 4000 may also include a light-blocking member 4400 to prevent flare. The light-blocking member 4400 may be a frame-like member disposed on the surface of the second lens holder 4200 facing the image sensor 5000, and may block unwanted light in the light passing through the second lens module 4000 to prevent flare.

[0205] The fifth guide groove 4230 and the sixth guide groove 1140 can be respectively set in the second lens bracket 4200 and the bottom surface of the housing 1100, so that the second lens module 4000 can move stably in the direction of the second optical axis O2.

[0206] The fifth guide groove 4230 and the sixth guide groove 1140 can extend along the second optical axis O2 and can be configured to accommodate multiple ball components 4600 respectively, so that the multiple ball components 4600 can move in a rolling manner.

[0207] The fifth guide groove 4230 and the sixth guide groove 1140 may have a V-shaped cross-section or a U-shaped cross-section, but their specific cross-sectional shapes are not limited to these.

[0208] The second lens holder 4200 may have a rearwardly extending extension 4210, and the fifth guide groove 4230 may extend to the extension 4210 to form a long stroke of the second lens module 4000.

[0209] The second lens module 4000 can be supported in a direction perpendicular to the second optical axis O2 by means of the magnetic force generated by a pair of magnets 4510 and 4520.

[0210] refer to Figure 13 The third magnet 4510 can be disposed on the lower surface of the second lens holder 4200, and the fourth magnet 4520 facing the third magnet 4510 can be disposed on the housing 1100. One of the third magnet 4510 and the fourth magnet 4520 can be a traction magnet, and the other can be a traction yoke.

[0211] By means of the magnetic attraction force generated between the third magnet 4510 and the fourth magnet 4520 (hereinafter referred to as the third magnetic force), the second lens holder 4200 can be moved while being positioned very close to the bottom surface of the housing 1100, and a plurality of ball members 4600 are inserted between the second lens holder 4200 and the housing 1100.

[0212] To stably support the second lens holder 4200, a third magnet 4510 can be disposed within the support region T formed by a plurality of ball members 4600. For example, the second lens holder 4200 can have three support points formed by three ball members 4610, 4620 and 4630 respectively, and thus, a triangular support region T can be formed, with the three support points being its vertices.

[0213] If a point of third magnetic force is formed within the support region T, the second lens holder 4200 can be stably supported within the housing 1100. However, if the third magnet 4510 is located outside the support region T, the point of third magnetic force extends beyond the support region T, and the second lens holder 4200 may tilt, or at least some of the ball members 4600 may detach from the guide slots 1140 and 4230.

[0214] To prevent this problem, the third magnet 4510 can be disposed within the support region T formed by the plurality of ball components 4600. Therefore, the point of application of the third magnetic force can be located within the support region T, so that the second lens holder 4200 is stably supported in the housing 1100.

[0215] When the second lens support 4200 moves in the direction of the second optical axis O2, the plurality of ball components 4600 can move a predetermined distance in a rolling manner, thus the support area T can be continuously changed. For example, in Figure 14 In this configuration, as the three spherical components 4610, 4620, and 4630 move, the shape of the triangle formed by the three support points may change. If the third magnet 4510 is located close to the fifth spherical component 4630, the point where the third magnetic force acts may be outside the support area T, depending on the change in the support area T.

[0216] Therefore, the third magnet 4510 can be positioned close to the third spherical member 4610 or the fourth spherical member 4620, so that even if the range of the support region T changes, the point of application of the third magnetic force can remain stably located within the support region T. That is, the distance between the third magnet 4510 and the third spherical member 4610, or the distance between the third magnet 4510 and the fourth spherical member 4620, can be less than the distance between the third magnet 4510 and the fifth spherical member 4630. Therefore, even if the second lens support 4200 moves with a long stroke, the point of application of the third magnetic force can remain stably located within the support region T, thereby stably supporting the second lens support 4200 within the housing 1100.

[0217] In the camera module 100, drive coils 3232, 3332, and 4320 for moving the reflector 3100 and the second lens holder 4200 can be mounted on the circuit board 7000 and exposed to the interior space of the housing 1100. For example, refer to Figure 15 The first driving coil 3332, the second driving coil 3232 and the third driving coil 4320 can be disposed on the circuit board 7000 and exposed to the internal space of the housing 1100 through the openings 1151, 1152 and 1153 of the housing 1100.

[0218] like Figure 15 As shown, the first drive coil 3332, the second drive coil 3232, and the third drive coil 4320 can all be mounted on the same circuit board 7000, but their mounting is not limited to this. The first drive coil 3332, the second drive coil 3232, and the third drive coil 4320 can be mounted on different circuit boards and exposed within the internal space of the housing 1100.

[0219] In the following text, reference will be made to Figure 16 Describes a reinforcing member included in a camera module according to an exemplary embodiment.

[0220] Figure 16 The diagram shows the state in which the reinforcing members are disposed within the housing 1100 of the camera module 100, the reflection module 3000, and the second lens module 4000. (Due to reference...) Figure 16 The described housing 1100, reflection module 3000, second lens module 4000, and camera module 100 including them correspond to the above reference. Figures 1 to 15 All features of the housing 1100, the reflection module 3000, the second lens module 4000, and the camera module 100 are described, so any overlapping descriptions can be omitted.

[0221] When an impact is applied to the camera module 100, the impact can be transmitted to the contact surfaces of the ball members and the contact ball members, which may cause deformation of the shape of the contact surfaces. For example, the reflector module 3000 and the housing 1100 may be arranged facing each other, with the first ball member 3410 and the guide ball member 3420 inserted between them. In this case, the impact may be concentrated on the narrow contact surface between the first ball member 3410 or the guide ball member 3420 and the housing 1100, or between the first ball member 3410 or the guide ball member 3420 and the reflector module 3000, thereby causing dents or deformation of the contact surfaces.

[0222] To prevent such dents, the camera module 100 may also include a plurality of reinforcing members 1120a, 1130a, 1140a, 3321a, 3322a and 4230a disposed at portions that contact the first ball member 3410, the guide ball member 3420, the third ball member 4610, the fourth ball member 4620 and the fifth ball member 4630.

[0223] For example, in the camera module 100, reinforcing members 1120a, 1130a, 3321a and 3322a with excellent mechanical rigidity can be disposed in the first receiving groove 1120 and the third guide groove 1130 of the housing 1100 in which the first guide ball member 3410 and the guide ball member 3420 are received, as well as the groove 3321 and the fourth guide groove 3322 of the rotatable bracket 3300.

[0224] Therefore, as Figure 16 As shown in the enlarged view, the upper and lower ends of the guide ball component 3420 can contact the reinforcing components 1130a and 3322a.

[0225] Reinforcing members 1120a, 1130a, 3321a, and 3322a may be disposed on at least some portions of the rotatable bracket 3300 or housing 1100 that can contact the first guide ball member 3410 and the guide ball member 3420. For example, reinforcing members 1120a, 1130a, 3321a, and 3322a may be disposed in a first receiving groove 1120 of the housing 1100 for receiving the first ball member 3410, a groove 3321 of the rotatable bracket 3300 for receiving the first ball member 3410, a third guide groove 1130 of the housing 1100 for receiving the guide ball member 3420, and a fourth guide groove 3322 of the rotatable bracket 3300 for receiving the guide ball member 3420.

[0226] The reinforcing member 1140a may be disposed in the sixth guide groove 1140 of the housing 1100, which accommodates the third ball member 4610, the fourth ball member 4620, and the fifth ball member 4630 for guiding the movement of the second lens module 4000, and the reinforcing member 4230a may be disposed in the fifth guide groove 4230 of the second lens module 4000, which accommodates the third ball member 4610, the fourth ball member 4620, and the fifth ball member 4630.

[0227] In addition, although Figure 16 Not shown, but reinforcing members may also be provided in the rotatable bracket 3300 and Figures 8 to 11 The portion of the reflective bracket 3200 that contacts the second ball component 3430.

[0228] In the reinforcing members 1120a, 1130a, 1140a, 3321a, 3322a, and 4230a included in the camera module 100, the surfaces of the corresponding ball members contacting the first ball member 3410, the guide ball member 3420, the third ball member 4610, the fourth ball member 4620, and the fifth ball member 4630 can have different shapes. For example, reinforcing members 1120a and 3321a can have surfaces inclined in different directions, allowing the first ball member 3410 to rotate easily without changing its position, while reinforcing members 1130a and 3322a can have flat surfaces, allowing the guide ball member 3420 to roll easily. However, the specific shapes of the reinforcing members 1120a, 1130a, 3321a, and 3322a are not limited to the shapes described above.

[0229] The reinforcing members can be made of a material with higher stiffness than the material in the structure on which the reinforcing members are disposed. For example, the rotatable bracket 3300, the housing 1100, and the second lens module 4000 can be made of plastic material, and the reinforcing members 1120a, 1130a, 1140a, 3321a, 3322a, and 4230a disposed on the rotatable bracket 3300, the housing 1100, and the second lens module 4000 can be made of a material with higher stiffness than plastic, such as a non-magnetic metal material like stainless steel. Therefore, it is possible to prevent the portions of the rotatable bracket 3300, the housing 1100, and the second lens module 4000 that contact the first ball member 3410, the guide ball member 3420, the third ball member 4610, the fourth ball member 4620, and the fifth ball member 4630 from deforming or being damaged due to impacts applied to the camera module 100.

[0230] The reinforcing member can be integrally formed with the structure on which the reinforcing member is disposed. For example, the reinforcing member 1130a disposed in the third guide groove 1130 of the housing 1100 can be integrally formed with the housing 1100 by insertion injection molding. When the housing 1100 is made of plastic material, the reinforcing member can be integrated with the housing 1100 by injecting resin material into the mold during manufacturing while the reinforcing member 1130a is fixed in the mold.

[0231] However, the method of attaching the reinforcing member is not limited to the insertion injection molding described above. For example, adhesives or any other suitable attachment method can be used to attach the reinforcing member to the housing 1100, the rotatable bracket 3300, the reflective bracket 3200, and the second lens module 4000.

[0232] According to an exemplary embodiment, by placing a reinforcing member at a portion of the contact ball member in the camera module 100, dents or deformations on the surface of the contact ball member can be significantly reduced even when an impact is applied to the camera module 100.

[0233] Therefore, despite external impacts, the rotatable bracket 3300 and the second lens module 4000 can move stably relative to the housing 1100, and the reflective bracket 3200 can move stably relative to the rotatable bracket 3300. Figure 8 The position sensors 3233 and 3333 in the middle can maintain a constant sensing accuracy for the position of the detection components relative to each other.

[0234] As described above, according to exemplary embodiments of the present disclosure, by placing lens modules in front of and behind the reflection module, a camera module with more lens modules can be provided without increasing its overall length.

[0235] Furthermore, according to exemplary embodiments in this disclosure, a reflection module and a camera module may be provided, which have a structure that can accurately detect the amount of motion of a moving object even when an external impact is applied to them.

[0236] While this disclosure includes specific examples, it will be apparent upon understanding the disclosure of this application 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 to be considered descriptive only and not for limiting purposes. The description of features or aspects in each example is to be considered applicable to similar features or aspects in other examples. Suitable results may also be obtained if the described techniques are performed in a different order, and / or if the components in the described system, architecture, device, or circuit are combined in a different manner, and / or replaced or supplemented by other components or their equivalents. Therefore, the scope of this disclosure is not defined by the detailed description but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents shall be construed as included in this disclosure.

Claims

1. A camera module, comprising: The first lens module includes one or more lenses disposed along the first optical axis; as well as The reflection module receives light emitted from the first lens module. The reflection module includes: The shell has an internal space; A rotatable bracket is supported in the housing in a first direction parallel to the first optical axis and configured to rotate relative to the housing; A reflective bracket is supported in the rotatable bracket in a second direction different from the first direction, and is configured to be rotatable relative to the rotatable bracket; A reflective member is disposed on the reflective support and includes a light-reflecting surface that changes the optical path of incident light along the first optical axis to the second optical axis; A first spherical component forms the rotation axis of the rotatable support, and an imaginary line extending along the first optical axis passes through the first spherical component. A pair of magnets configured to provide magnetic force to support the reflective bracket within the rotatable bracket. In this configuration, one of the pair of magnets is mounted on the reflective support, and the other magnet is mounted on the rotatable support. The pair of magnets face each other in the second direction, and An imaginary line extending along the second optical axis passes through the other magnet of the pair of magnets.

2. The camera module according to claim 1 further includes a plurality of second ball components, the plurality of second ball components being disposed between the reflective bracket and the rotatable bracket and forming the rotation axis of the reflective bracket.

3. The camera module according to claim 2, further comprising a plurality of receiving slots formed in any one or both of the reflective bracket and the rotatable bracket. in, The plurality of second ball components are respectively disposed in the plurality of receiving grooves in the second direction.

4. The camera module according to claim 2, wherein, The rotation axis of the reflective bracket passes through the plurality of second spherical components, and The reflective component is disposed between multiple second spherical components.

5. The camera module of claim 1, further comprising a driving magnet and a driving coil, the driving magnet and the driving coil being configured to rotate the reflective bracket. in, The driving magnet is disposed on the reflective bracket and the driving coil is disposed on the housing, or the driving magnet is disposed on the housing and the driving coil is disposed on the reflective bracket.

6. The camera module according to claim 5, wherein, The reflective bracket includes an extension disposed between the rotatable bracket and the housing. The drive coil is disposed on the housing, and The driving magnet is disposed on the extension so as to face the driving coil in the second direction.

7. The camera module of claim 6 further includes a position sensor disposed on the housing and facing the drive magnet in the second direction.

8. The camera module according to claim 7, wherein, The driving magnet is configured such that the surface of the driving magnet facing the driving coil has an N pole, a neutral region, and an S pole arranged in the first direction. The position sensor faces the neutral region.

9. The camera module according to claim 5, wherein, The driving magnet is disposed between the pair of magnets and the driving coil.

10. The camera module according to claim 1, further comprising: A driving magnet and a driving coil are configured to rotate the rotatable support; as well as A magnet, configured to provide magnetic force by interacting with the drive magnet, to support the rotatable support within the housing; The magnet and the driving magnet face each other in the first direction, and the driving coil is inserted between the magnet and the driving magnet.

11. The camera module of claim 10, further comprising a position sensor facing the driving magnet in the first direction.

12. The camera module of claim 10, further comprising a receiving groove formed in one or both of the housing and the rotatable bracket, and supporting the first ball member at three or more points.

13. The camera module of claim 10, further comprising a plurality of guide ball members configured to guide rotation of the rotatable support. in, The plurality of guide ball components are movable relative to the first ball component in a direction perpendicular to the first direction.

14. The camera module according to claim 1, further comprising a damper disposed on the reflector bracket and protruding toward the first lens module.

15. The camera module of claim 1, further comprising a second lens module, wherein light emitted from the reflective member is incident on the second lens module, the second lens module comprising one or more lenses disposed along a second optical axis. in, The second optical axis is parallel to the second direction.

16. A camera module, comprising: The first lens module and the second lens module each have a first optical axis and a second optical axis different from the first optical axis; as well as A reflection module is disposed in the optical path from the first lens module to the second lens module. The reflection module includes: The shell has an internal space; A rotatable bracket is disposed in the internal space of the housing and configured to rotate about a first rotation axis; The reflective bracket is configured to rotate relative to the rotatable bracket about a second rotation axis perpendicular to the first rotation axis. A reflective component is disposed on the reflective support and includes a light-reflecting surface that changes the light path of the incident light; A pair of magnets configured to provide magnetic force to support the reflective bracket within the rotatable bracket. In this configuration, one of the pair of magnets is mounted on the reflective support, and the other magnet is mounted on the rotatable support. The pair of magnets face each other in a direction parallel to the second optical axis, and An imaginary line extending along the second optical axis passes through the other magnet of the pair of magnets.

17. The camera module according to claim 16, wherein, The rotatable bracket is supported in the housing by a first magnetic force in a first direction parallel to the first rotation axis, and The reflective bracket is supported in the rotatable bracket in a second direction perpendicular to the first direction by a second magnetic force.

18. The camera module according to claim 17, wherein, The camera module also includes: A first driving magnet is mounted on the rotatable support; and The first traction yoke is disposed on the housing, and The first magnetic force is generated by the first driving magnet and the first traction yoke.

19. The camera module according to claim 17, wherein, The pair of magnets are configured to generate the second magnetic force, and The pair of magnets are configured to rotate together with the rotatable support as the rotatable support rotates.

20. The camera module according to claim 19, wherein, The pair of magnets includes: A first magnet is disposed on the rotatable support; and A second magnet is disposed on the reflective bracket and faces the first magnet in the second direction.

21. The camera module according to claim 20, wherein, The reflection module further includes a second driving magnet and a second driving coil, the second driving magnet and the second driving coil being configured to rotate the reflection bracket, and The first magnet is disposed between the second driving magnet and the second magnet.

22. The camera module according to claim 21, wherein, The first magnet is a traction magnet, and the second magnet is a second traction yoke.

23. A reflection module, comprising: A rotatable bracket configured to rotate about a first axis; A reflective bracket is attached to the rotatable bracket and configured to rotate about a second axis perpendicular to the first axis; A reflective member, connected to the reflective support, includes a light-reflecting surface that alters the optical path of incident light, and is configured to reflect light received along a first optical axis parallel to the first axis to a second optical axis parallel to the third axis; A first magnet is mounted on the reflective support; as well as The second magnet is mounted on the rotatable support. The first magnet and the second magnet face each other in a direction parallel to the third axis. The third axis is perpendicular to the first axis and the second axis, and An imaginary line extending along the second optical axis passes through the second magnet.

24. The reflection module according to claim 23, wherein, The first magnet is disposed between the second shaft and the second magnet.

25. The reflection module according to claim 23, further comprising: A driving magnet is mounted on the reflective support; A drive coil configured to interact with the drive magnet; as well as A position sensor configured to detect the movement of the drive magnet.

26. The reflection module according to claim 25, wherein, The first magnet, the second magnet, the driving magnet, and the position sensor are arranged in a direction parallel to the third axis.

27. The reflective module of claim 25, further comprising a housing having an internal space and an opening therein exposing the internal space. in, The rotatable bracket is disposed in the housing; as well as The drive coil and the position sensor are exposed to the interior space of the housing through the opening in the housing.

28. The reflective module of claim 23, further comprising a spherical member through which the second axis passes. in, The spherical component is disposed between a first receiving groove formed in the rotatable support and a second receiving groove formed in the reflective support, and The first receiving groove and the second receiving groove face each other in a direction parallel to the third axis.

29. A camera module, comprising: The reflection module according to claim 23; A first lens module, having the first optical axis; as well as The second lens module has the second optical axis.

Images