reflective module

Abstract

The present disclosure relates to a reflection module. The reflection module includes a housing, a bracket rotatably disposed with respect to the housing, a reflection member coupled to the bracket, a support portion disposed between the housing and the bracket and supporting the bracket, a first magnetic body portion disposed in the bracket and including a first magnet and a second magnet, and a second magnetic body portion disposed in the housing and including a third magnet and a fourth magnet, wherein an attractive force acts between the first magnet and the third magnet and between the second magnet and the fourth magnet, respectively, and a polarity of one surface of the first magnet and a polarity of one surface of the second magnet are opposite to each other, and a polarity of one surface of the third magnet and a polarity of one surface of the fourth magnet are opposite to each other.

Description

[0001] Cross-reference to related applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2025-0057164, filed on April 30, 2025, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes. Technical Field

[0003] This disclosure relates to reflection modules. Background Technology

[0004] Recently, camera modules have been used in mobile devices that bend the path of light by placing a reflective module at the front of the lens module. The reflective module has a reflective member that reflects light.

[0005] In addition, the camera module features optical image stabilization to correct for jitter during image capture and improve resolution. This optical image stabilization is achieved through biaxial rotation of a reflective component located in the reflective module.

[0006] However, conventional reflective modules have the following problem: they have a complex structure for achieving biaxial rotation of the reflective components.

[0007] In addition, there is a problem that the reflective component tilts to one side when no power is supplied to the reflective module.

[0008] The above information is presented as background information and is intended to aid in understanding this disclosure. No determination or assertion is made as to whether any of the above content constitutes an application of prior art to this disclosure. Summary of the Invention

[0009] This summary is provided to present the selection of concepts in a simplified form, while these concepts are 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 reflective module includes: a housing; a bracket rotatably disposed relative to the housing; a reflective member coupled to the bracket; a support portion disposed between the housing and the bracket and supporting the bracket, such that the bracket can rotate in multiple directions; a first magnetic body portion disposed in the bracket and including a first magnet and a second magnet disposed spaced apart from each other; and a second magnetic body portion disposed in the housing and including a third magnet and a fourth magnet disposed spaced apart from each other, wherein attractive forces act between the first magnet and the third magnet and between the second magnet and the fourth magnet, respectively, the polarity of a surface of the first magnet and the polarity of a surface of the second magnet being opposite to each other, and the polarity of a surface of the third magnet and the polarity of a surface of the fourth magnet being opposite to each other.

[0011] The direction in which the first and second magnets are spaced apart from each other can be the same as the direction in which the third and fourth magnets are spaced apart from each other.

[0012] The distance between the center of the first magnet and the center of the second magnet can be less than the distance between the center of the third magnet and the center of the fourth magnet.

[0013] A portion of the first magnetic body and a portion of the second magnetic body can face each other in one direction, and when viewed in one direction, the first magnetic body can be closer to the support portion than the second magnetic body.

[0014] A portion of one surface of the first magnet and a portion of one surface of the third magnet may face each other, and a portion of one surface of the second magnet and a portion of one surface of the fourth magnet may face each other.

[0015] The third magnet can be configured to cover half the width of a surface of the first magnet in one direction, and the fourth magnet can be configured to cover half the width of a surface of the second magnet in one direction.

[0016] The polarity of one surface of the first magnet and the polarity of one surface of the fourth magnet can be the same, and the polarity of one surface of the second magnet and the polarity of one surface of the third magnet can be the same.

[0017] The first to fourth magnets can each have a curved inner surface and an outer surface, respectively.

[0018] The third magnet can be longer than the first magnet, and the fourth magnet can be longer than the second magnet.

[0019] The area of ​​one surface of the third magnet can be greater than the area of ​​one surface of the first magnet, and the area of ​​one surface of the fourth magnet can be greater than the area of ​​one surface of the second magnet.

[0020] When viewed in one direction, the inner surface of the first magnet, the outer surface of the first magnet, the inner surface of the third magnet, and the outer surface of the third magnet can be concentric circles, and when viewed in one direction, the inner surface of the second magnet, the outer surface of the second magnet, the inner surface of the fourth magnet, and the outer surface of the fourth magnet can be concentric circles.

[0021] The reflection module may also include a first driving unit disposed in the housing and including a first coil and a second coil, wherein the direction in which the first coil and the second coil are spaced apart from each other may be perpendicular to the direction in which the third magnet and the fourth magnet are spaced apart from each other.

[0022] The first and second coils can be wound separately to give them thickness in the direction toward the support.

[0023] The third and fourth magnets can be respectively disposed on the inner surface of the housing, and the first coil and the second coil can be respectively disposed on the inner surface of the housing.

[0024] The first coil can be disposed between one side of the third magnet and one side of the fourth magnet, and the second coil can be disposed between the other side of the third magnet and the other side of the fourth magnet.

[0025] The first coil and the second coil may have curved inner and outer surfaces, respectively.

[0026] Other features and aspects will become apparent from the following detailed description, drawings, and claims. Attached Figure Description

[0027] Figure 1 This is a side view of a reflection module according to an embodiment of the present disclosure.

[0028] Figure 2 This is a rear view of a reflection module according to an embodiment of the present disclosure.

[0029] Figure 3 This is a plan view of a reflection module according to an embodiment of the present disclosure.

[0030] Figure 4 This is a side view of a reflection module according to another embodiment of the present disclosure.

[0031] Figure 5 This is a rear view of a reflection module according to another embodiment of the present disclosure.

[0032] Figure 6 This is a plan view of a reflection module according to another embodiment of the present disclosure.

[0033] Figure 7This is a side view of a reflection module according to another embodiment of the present disclosure.

[0034] Figure 8 This is a rear view of a reflection module according to another embodiment of the present disclosure.

[0035] Figure 9 This is a plan view of a reflection module according to another embodiment of the present disclosure.

[0036] Figure 10 This is a side view of the reflection module, showing the driving unit of the reflection module according to an embodiment of the present disclosure.

[0037] Figure 11 yes Figure 10 Rear view.

[0038] Figure 12 yes Figure 10 Floor plan.

[0039] Figures 13A to 13C This is a diagram illustrating the driving unit of a reflection module according to an embodiment of the present disclosure.

[0040] Figure 14 This is a side view of the reflection module, showing a modified example of the first drive unit.

[0041] Figures 15A to 15C This is a diagram illustrating a modified example of the first drive unit.

[0042] Throughout the accompanying drawings and detailed embodiments, the same reference numerals denote the same elements unless otherwise described. For clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative dimensions, scale, and depiction of elements in the drawings may be exaggerated. Detailed Implementation

[0043] In the following text, although examples of this disclosure will be described in detail with reference to the accompanying drawings, it should be noted that the examples are not limited thereto.

[0044] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of 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 upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein, but can be changed as will become apparent upon understanding this disclosure, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0045] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided merely to illustrate some of the many possible ways in which the methods, apparatuses, and / or systems described herein will be apparent upon understanding this disclosure.

[0046] 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 may be directly "on," directly "connected to," or directly "attached to" the other element, or there may be one or more other elements in between. Conversely, when an element is described as being "directly" "on," "directly connected to," or "directly attached to" another element, there are no other elements in between.

[0047] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more of the associated listed items; similarly, “at least one of…” includes any one of the associated listed items and any combination of any two or more of the associated listed items.

[0048] Although terms such as “first,” “second,” and “third” may be used in this document to describe various components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, the first component, first assembly, first region, first layer, or first part mentioned in the examples described herein may also be referred to as a second component, second assembly, second region, second layer, or second part without departing from the teachings of the examples.

[0049] For ease of description, spatial relative terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. In addition to the orientation depicted in the drawings, these spatial relative terms are intended to also include different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as “above” or “upper” relative to another element will consequently be “below” or “lower” relative to said other element. Therefore, the term “above” includes both upper and lower orientations, depending on the spatial orientation of the device. The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein will be interpreted accordingly.

[0050] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. The terms “a,” “an,” and “the” are intended to include the plural meaning as well, unless the context clearly indicates otherwise. The terms “comprising,” “including,” and “having” specify the presence of the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0051] The shapes shown in the accompanying drawings may vary due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include shape variations that occur during manufacturing.

[0052] In this article, it is important to note that the term “may” is used with respect to examples. For example, regarding what an example may include or implement, it means that there exists at least one example that includes or implements this feature, but not all examples are limited to this.

[0053] As will be apparent upon understanding this disclosure, the features of the examples described herein can be combined in various ways. Furthermore, although the examples described herein have multiple configurations, other configurations are also possible, as will be apparent upon understanding this disclosure.

[0054] Unless otherwise stated, any component included in one of the multiple embodiments disclosed herein may also be included in other embodiments.

[0055] One aspect of this disclosure is to provide a reflection module that simplifies the rotational structure of a reflection member and allows adjustment of the position of the reflection member when no power is supplied to the reflection module.

[0056] This disclosure relates to a reflective module that can be configured to be mounted on a camera module. Furthermore, the camera module can be mounted on portable electronic devices such as mobile communication terminals, smartphones, tablet PCs, etc.

[0057] Figure 1 This is a side view of a reflection module according to an embodiment of the present disclosure. Figure 2 This is a rear view of a reflection module according to an embodiment of the present disclosure, and Figure 3 This is a plan view of a reflection module according to an embodiment of the present disclosure.

[0058] Reference Figures 1 to 3 According to embodiments of the present disclosure, the reflective module includes a housing 100, a bracket 200, and a reflective member 300.

[0059] The reflecting member 300 has a reflective surface that reflects light. For example, the reflecting member 300 may be a prism or a mirror. The reflecting member 300 may be attached to the support 200.

[0060] The reflective member 300 can be rotatable in multiple directions for optical image stabilization. In one embodiment, the reflective member 300 can be rotatably arranged about at least two different axes. For example, the reflective member 300 can be rotatable about two axes perpendicular to each other.

[0061] The reflective member 300 can rotate together with the bracket 200. The reflective member 300 and the bracket 200 are housed within a housing 100. In one embodiment, the housing 100 may be an assembly of the reflective module. However, it may be configured such that the reflective member 300 and the bracket 200 are housed within the housing of the camera module.

[0062] The reflective module also includes a support portion 400 that rotatably supports the bracket 200. The support portion 400 may be configured as a hinge structure. In one embodiment, the support portion 400 may include a ball member 420 and a support protrusion 410. The support protrusion 410 may extend from the housing 100, and the ball member 420 is coupled to the support protrusion 410 to rotatably support the bracket 200. A groove into which the ball member 420 is inserted may be formed in the bracket 200. In another embodiment, a structure in which the support protrusion 410 is formed in the bracket 200 and the groove into which the ball member 420 is inserted is formed in the housing 100 is also possible.

[0063] In some embodiments, it is also possible for the ball member 420 not to be connected to the support protrusion 410 and for the end of the support protrusion 410 to be formed as a curved surface.

[0064] In one implementation, the first lens module may be located in front of the reflection module.

[0065] The first lens module includes at least one lens, and the axis of the optical axis extending in the optical axis direction of the first lens module can pass through the support portion 400. For example, the axis of the optical axis extending in the optical axis direction of the first lens module can pass through the ball member 420 of the support portion 400.

[0066] The first lens module can be connected to the reflection module. For example, the first lens module can be connected to the bracket 200 of the reflection module. Therefore, the first lens module can rotate together with the bracket 200.

[0067] In one implementation, the second lens module may be located at the rear of the reflection module.

[0068] The second lens module includes multiple lenses, and the axis of the optical axis extending in the optical axis direction of the second lens module can pass through the support portion 400. For example, the axis of the optical axis extending in the optical axis direction of the second lens module can pass through the ball member 420 of the support portion 400.

[0069] The optical axes of the first lens module and the second lens module can be formed perpendicular to each other.

[0070] The first lens module and the reflective member 300 can be configured to rotate together for optical image stabilization. The second lens module can be moved along its optical axis for focusing.

[0071] According to embodiments of the present disclosure, the reflection module can be used together with at least one of a first lens module and a second lens module to form a camera module.

[0072] The camera module may also include an image sensor module. The image sensor module may be located at the rear of the second lens module. When the camera module does not include a second lens module, the image sensor module may be located at the rear of the reflection module.

[0073] The reflective member 300 has an incident surface on which light is incident, a reflective surface on which light is reflected, and an emitting surface on which light is emitted.

[0074] The reflective member 300 is mounted on the bracket 200. The bracket 200 is rotatably disposed within the housing 100. For example, the bracket 200 can rotate about the ball member 420 of the support portion 400 as a center of rotation. The reflective member 300 can rotate together with the bracket 200.

[0075] In one embodiment, the bracket 200 can rotate relative to the housing 100 about a first rotation axis (Z-axis). The bracket 200 can rotate relative to the housing 100 about a second rotation axis (X-axis). The first rotation axis (Z-axis) and the second rotation axis (X-axis) can be perpendicular to each other.

[0076] The first rotation axis (Z-axis) can be perpendicular to the emitting surface. The first rotation axis (Z-axis) can also be parallel to the incident surface. The second rotation axis (X-axis) can be parallel to both the incident surface and the emitting surface.

[0077] In the following text, the direction perpendicular to the emitting surface is referred to as the first rotation axis (Z-axis) direction, the direction parallel to both the incident surface and the emitting surface is referred to as the second rotation axis (X-axis) direction, and the direction perpendicular to both the first rotation axis (Z-axis) direction and the second rotation axis (X-axis) direction is referred to as the third axis (Y-axis) direction.

[0078] The reflective module may also include a magnetic portion 500. Magnetic force can be applied between the housing 100 and the support 200 through the magnetic portion 500. The magnetic portion 500 includes a first magnetic body portion 510 and a second magnetic body portion 520.

[0079] The first magnetic main body portion 510 can be mounted on the bracket 200, and the second magnetic main body portion 520 can be mounted on the housing 100. The first magnetic main body portion 510 and the second magnetic main body portion 520 can face each other in the direction of the first rotation axis (Z-axis).

[0080] The first magnetic body portion 510 includes a first sub-magnetic body 511 and a second sub-magnetic body 512 that are spaced apart from each other. The first sub-magnetic body 511 and the second sub-magnetic body 512 may be spaced apart in a direction perpendicular to the first rotation axis (Z-axis) (e.g., in the direction of the second rotation axis (X-axis)).

[0081] The first sub-magnetic body 511 and the second sub-magnetic body 512 can each be a magnet. In this case, the first sub-magnetic body 511 can be referred to as the first magnet, and the second sub-magnetic body 512 can be referred to as the second magnet.

[0082] One surface of the first submagnetic body 511 and one surface of the second submagnetic body 512 can be configured to have opposite polarities.

[0083] The first sub-magnetic body 511 can be configured to have a surface facing the second magnetic body portion 520 with an N pole or a S pole. When one surface of the first sub-magnetic body 511 has an N pole, one surface of the second sub-magnetic body 512 facing the second magnetic body portion 520 can be configured to have an S pole. When one surface of the first sub-magnetic body 511 has an S pole, one surface of the second sub-magnetic body 512 facing the second magnetic body portion 520 can be configured to have an N pole.

[0084] The second magnetic body portion 520 includes a third sub-magnetic body 521 and a fourth sub-magnetic body 522 spaced apart from each other. The third sub-magnetic body 521 and the fourth sub-magnetic body 522 may be spaced apart in a direction perpendicular to the first rotation axis (Z-axis) (e.g., in the direction of the second rotation axis (X-axis)).

[0085] The third sub-magnetic body 521 and the fourth sub-magnetic body 522 can each be a magnet. In this case, the third sub-magnetic body 521 can be referred to as the third magnet, and the fourth sub-magnetic body 522 can be referred to as the fourth magnet.

[0086] One surface of the third sub-magnetic body 521 and one surface of the fourth sub-magnetic body 522 can be configured to have opposite polarities.

[0087] The third sub-magnetic body 521 can be configured to have a surface facing the first magnetic body portion 510 with an S pole or an N pole. When one surface of the third sub-magnetic body 521 has an S pole, one surface of the fourth sub-magnetic body 522 facing the first magnetic body portion 510 can be configured to have an N pole. When one surface of the third sub-magnetic body 521 has an N pole, one surface of the fourth sub-magnetic body 522 facing the first magnetic body portion 510 can be configured to have an S pole.

[0088] At least a portion of a surface of the first sub-magnetic body 511 and at least a portion of a surface of the third sub-magnetic body 521 may face each other in the direction of the first rotation axis (Z-axis). The polarity of a surface of the first sub-magnetic body 511 and the polarity of a surface of the third sub-magnetic body 521 may be opposite to each other. Therefore, an attractive force acts between the first sub-magnetic body 511 and the third sub-magnetic body 521.

[0089] When viewed along the first rotation axis (Z-axis), the third submagnetic body 521 may be configured to overlap a portion of the first submagnetic body 511. For example, the third submagnetic body 521 may be configured to cover less than half the width of a surface of the first submagnetic body 511.

[0090] At least a portion of one surface of the second sub-magnetic body 512 and at least a portion of one surface of the fourth sub-magnetic body 522 may face each other in the direction of the first rotation axis (Z-axis). The polarity of one surface of the second sub-magnetic body 512 and the polarity of one surface of the fourth sub-magnetic body 522 may be opposite to each other. Therefore, an attractive force acts between the second sub-magnetic body 512 and the fourth sub-magnetic body 522.

[0091] When viewed along the first rotation axis (Z-axis), the fourth sub-magnetic body 522 may be configured to overlap a portion of the second sub-magnetic body 512. For example, the fourth sub-magnetic body 522 may be configured to cover less than half the width of a surface of the second sub-magnetic body 512.

[0092] The distance between the center of the first sub-magnetic body 511 and the center of the second sub-magnetic body 512 can be narrower than the distance between the center of the third sub-magnetic body 521 and the center of the fourth sub-magnetic body 522.

[0093] In an embodiment, the distance between the center of the first sub-magnetic body 511 and the center of the second sub-magnetic body 512 in the direction of the second rotation axis (X-axis) can be narrower than the distance between the center of the third sub-magnetic body 521 and the center of the fourth sub-magnetic body 522 in the direction of the second rotation axis (X-axis).

[0094] When viewed in the direction of the first rotation axis (Z-axis), the first sub-magnetic body 511 and the second sub-magnetic body 512 may be positioned closer to the support portion 400 (e.g., ball member 420) than the third sub-magnetic body 521 and the fourth sub-magnetic body 522.

[0095] The first sub-magnetic body 511 to the fourth sub-magnetic body 522 may each have a rounded shape. For example, when viewed in the direction of the first rotation axis (Z-axis), the first sub-magnetic body 511 to the fourth sub-magnetic body 522 may each have a rounded shape.

[0096] In this embodiment, the first sub-magnetic body 511 has an inner surface and an outer surface, and the inner and outer surfaces may each have a curved shape. Here, when viewed along the first rotation axis (Z-axis), the inner surface may be the surface facing the rotation center of the support 200, and the outer surface may be the surface opposite to the inner surface. Furthermore, the inner surface of the first sub-magnetic body 511 may refer to the surface adjacent to the second sub-magnetic body 512.

[0097] The first sub-magnetic body 511 can be formed such that the length of the outer surface is longer than the length of the inner surface.

[0098] The second sub-magnetic body 512 has the same shape as the first sub-magnetic body 511, and the first sub-magnetic body 511 and the second sub-magnetic body 512 can be arranged at symmetrical positions relative to the rotation center of the support 200.

[0099] The length of the third sub-magnetic body 521 can be longer than the length of the first sub-magnetic body 511.

[0100] The third sub-magnetic body 521 has an inner surface and an outer surface, and the inner and outer surfaces may each have a curved shape. Here, when viewed along the first rotation axis (Z-axis), the inner surface may be a surface facing the rotation center of the support 200, and the outer surface may be a surface opposite to the inner surface. The length of the inner surface of the third sub-magnetic body 521 is longer than the length of the inner surface of the first sub-magnetic body 511. Furthermore, the length of the outer surface of the third sub-magnetic body 521 is longer than the length of the outer surface of the first sub-magnetic body 511.

[0101] The fourth sub-magnetic body 522 has the same shape as the third sub-magnetic body 521, and the third sub-magnetic body 521 and the fourth sub-magnetic body 522 can be arranged at symmetrical positions relative to the rotation center of the support 200.

[0102] When viewed along the first rotation axis (Z-axis), the outer surface of the first sub-magnetic body 511 can be located between the outer and inner surfaces of the third sub-magnetic body 521. That is, when viewed along the first rotation axis (Z-axis), the third sub-magnetic body 521 can overlap with a portion of the first sub-magnetic body 511.

[0103] When viewed along the first rotation axis (Z-axis), the inner surface of the first sub-magnetic body 511, the outer surface of the first sub-magnetic body 511, the inner surface of the third sub-magnetic body 521, and the outer surface of the third sub-magnetic body 521 can each be a part of a concentric circle.

[0104] When viewed along the first rotation axis (Z-axis), the inner surface of the second sub-magnetic body 512, the outer surface of the second sub-magnetic body 512, the inner surface of the fourth sub-magnetic body 522, and the outer surface of the fourth sub-magnetic body 522 can each be a part of a concentric circle.

[0105] The area of ​​one surface of the third sub-magnetic body 521 is greater than the area of ​​one surface of the first sub-magnetic body 511, and the area of ​​one surface of the fourth sub-magnetic body 522 is greater than the area of ​​one surface of the second sub-magnetic body 512.

[0106] Reference Figure 1 The bracket 200 can rotate about a second rotation axis (X-axis) to correct jitter. For example, the reflection module may also include a drive unit, and the bracket 200 can rotate about the second rotation axis (X-axis) by the driving force of the drive unit.

[0107] Even if the power to the drive unit is turned off and the driving force is removed, an attractive force can still act between the first magnetic body portion 510 and the second magnetic body portion 520, and this attractive force can be used as a return torque to return the bracket 200 to its initial position. Here, the initial position can mean a state in which the first magnetic body portion 510 is parallel to the second magnetic body portion 520, or a state in which the lower surface of the bracket 200 is parallel to the bottom surface of the housing 100.

[0108] Reference Figure 2 The bracket 200 can rotate about a first rotation axis (Z-axis) to correct jitter. For example, the bracket 200 can rotate about the first rotation axis (Z-axis) by the driving force of the drive unit.

[0109] As the support 200 rotates around the first rotation axis (Z-axis), the first sub-magnetic body 511 and the fourth sub-magnetic body 522 become closer to each other, and the second sub-magnetic body 512 and the third sub-magnetic body 521 also become closer to each other.

[0110] In other words, as the support 200 rotates around the first rotation axis (Z-axis), the magnetic elements with the same polarity become closer together, thus creating a strong repulsive force. This repulsive force can then be used as a return torque to return the support 200 to its initial position.

[0111] Reference Figure 3 When the support 200 rotates about an axis perpendicular to both the first rotation axis (Z-axis) and the second rotation axis (X-axis), the attractive force acting between the first sub-magnetic body 511 and the third sub-magnetic body 521 and the repulsive force acting between the first sub-magnetic body 511 and the fourth sub-magnetic body 522 can be used as return torques to prevent the support 200 from rotating.

[0112] In other words, since both the magnetic force acting between the first sub-magnetic body 511 and the third sub-magnetic body 521 and the magnetic force acting between the first sub-magnetic body 511 and the fourth sub-magnetic body 522 serve as return torques on the support 200, they can strongly resist the rotation of the support 200 about an axis perpendicular to both the first rotation axis (Z-axis) and the second rotation axis (X-axis). On the other hand, the attractive force acting between the second sub-magnetic body 512 and the fourth sub-magnetic body 522 and the repulsive force acting between the second sub-magnetic body 512 and the third sub-magnetic body 521 can also serve as return torques.

[0113] Therefore, even if the bracket 200 is placed in a state where the bracket 200 can freely rotate mechanically relative to the housing 100, the magnetic force acting between the first magnetic body portion 510 and the second magnetic body portion 520 can prevent the bracket 200 from rotating in any direction.

[0114] Furthermore, since a predetermined return torque can be applied to the bracket 200 when the power to the drive unit is turned off, the position of the bracket 200 can be adjusted without separate power consumption when jitter correction is not required (e.g., when the drive unit is not powered).

[0115] Figure 4 This is a side view of a reflection module according to another embodiment of the present disclosure. Figure 5 This is a rear view of a reflection module according to another embodiment of the present disclosure, and Figure 6 This is a plan view of a reflection module according to another embodiment of the present disclosure.

[0116] Reference Figures 4 to 6 The configuration of the magnetic part 500 differs from that in the aforementioned implementation.

[0117] The magnetic part 500 includes a first magnetic main body part 510 and a second magnetic main body part 520.

[0118] The first magnetic main body portion 510 can be mounted on the bracket 200, and the second magnetic main body portion 520 can be mounted on the housing 100. The first magnetic main body portion 510 and the second magnetic main body portion 520 can face each other in the direction of the first rotation axis (Z-axis).

[0119] The first magnetic main body portion 510 includes a first sub-magnetic main body 511 and a second sub-magnetic main body 512. The first sub-magnetic main body 511 and the second sub-magnetic main body 512 may be arranged to be spaced apart in a direction perpendicular to the first rotation axis (Z-axis) (e.g., in the direction of the second rotation axis (X-axis)).

[0120] The first sub-magnetic body 511 and the second sub-magnetic body 512 can be magnets, respectively.

[0121] One surface of the first sub-magnetic body 511 can be configured to have both N poles and S poles. The N poles and S poles can be spaced apart or arranged side by side on one surface of the first sub-magnetic body 511 in a direction perpendicular to the first rotation axis (Z axis) (e.g., in the direction of the second rotation axis (X axis)).

[0122] One surface of the second submagnetic body 512 can be configured to have both N poles and S poles. The N poles and S poles can be spaced apart or arranged side by side on one surface of the second submagnetic body 512 in a direction perpendicular to the first rotation axis (Z axis) (e.g., in the direction of the second rotation axis (X axis)).

[0123] One surface of the first submagnetic body 511 and one surface of the second submagnetic body 512 can be configured to have different polarities in portions close to each other. For example, when one surface of the first submagnetic body 511 has an S pole on the side further away from the second submagnetic body 512 and an N pole on the side closer to the second submagnetic body 512, the side of one surface of the second submagnetic body 512 closer to the first submagnetic body 511 can have an S pole and the side further away from the first submagnetic body 511 can have an N pole.

[0124] The second magnetic body portion 520 includes a third sub-magnetic body 521 and a fourth sub-magnetic body 522. The third sub-magnetic body 521 and the fourth sub-magnetic body 522 may be arranged to be spaced apart in a direction perpendicular to the first rotation axis (Z-axis) (e.g., in the direction of the second rotation axis (X-axis)).

[0125] The third sub-magnetic body 521 and the fourth sub-magnetic body 522 can be magnets respectively.

[0126] One surface of the third sub-magnetic body 521 can be configured to have both N poles and S poles. The N poles and S poles can be spaced apart or arranged side by side on one surface of the third sub-magnetic body 521 in a direction perpendicular to the first rotation axis (Z-axis) (e.g., in the direction of the second rotation axis (X-axis)).

[0127] One surface of the fourth sub-magnetic body 522 can be configured to have both N poles and S poles. The N poles and S poles can be spaced apart or arranged side by side on one surface of the fourth sub-magnetic body 522 in a direction perpendicular to the first rotation axis (Z-axis) (e.g., in the direction of the second rotation axis (X-axis)).

[0128] A surface of the third sub-magnetic body 521 and a surface of the fourth sub-magnetic body 522 can be configured to have different polarities in portions close to each other. For example, when a surface of the third sub-magnetic body 521 has an N pole on the side further away from the fourth sub-magnetic body 522 and an S pole on the side closer to the fourth sub-magnetic body 522, a surface of the fourth sub-magnetic body 522 can have an N pole on the side closer to the third sub-magnetic body 521 and an S pole on the side further away from the third sub-magnetic body 521.

[0129] At least a portion of a surface of the first submagnetic body 511 and at least a portion of a surface of the third submagnetic body 521 may face each other in the direction of the first rotation axis (Z-axis). The first submagnetic body 511 and the third submagnetic body 521 may be configured such that their opposite polarities face each other. Therefore, an attractive force acts between the first submagnetic body 511 and the third submagnetic body 521.

[0130] At least a portion of one surface of the second sub-magnetic body 512 and at least a portion of one surface of the fourth sub-magnetic body 522 may face each other in the direction of the first rotation axis (Z-axis). The second sub-magnetic body 512 and the fourth sub-magnetic body 522 may be configured such that their opposite polarities face each other. Therefore, an attractive force acts between the second sub-magnetic body 512 and the fourth sub-magnetic body 522.

[0131] The distance between the first sub-magnetic body 511 and the second sub-magnetic body 512 in the direction of the second rotation axis (X-axis) can be narrower than the distance between the third sub-magnetic body 521 and the fourth sub-magnetic body 522 in the direction of the second rotation axis (X-axis).

[0132] The length directions of the first sub-magnetic body 511 and the third sub-magnetic body 521 can be perpendicular to each other. The length directions of the second sub-magnetic body 512 and the fourth sub-magnetic body 522 can be perpendicular to each other.

[0133] The first sub-magnetic body 511 and the second sub-magnetic body 512 may have a shape having length in the direction of the second rotation axis (X-axis). The third sub-magnetic body 521 and the fourth sub-magnetic body 522 may have a shape having length in a direction perpendicular to the first rotation axis (Z-axis) and the second rotation axis (X-axis), respectively (e.g., a direction perpendicular to the incident surface of the reflective member 300).

[0134] Reference Figure 4 The bracket 200 can rotate around the second rotation axis (X-axis) to correct for jitter.

[0135] Even if the power to the drive unit is turned off and the driving force is removed, the attractive force can still act between the first magnetic body portion 510 and the second magnetic body portion 520, and this attractive force can be used as a return torque to return the bracket 200 to its initial position.

[0136] Reference Figure 5 The bracket 200 can rotate around the first rotation axis (Z axis) to correct jitter.

[0137] As the support 200 rotates around the first rotation axis (Z-axis), the same polarities of the first sub-magnetic body 511 and the third sub-magnetic body 521 move closer to each other, and the same polarities of the second sub-magnetic body 512 and the fourth sub-magnetic body 522 move closer to each other, allowing a strong repulsive force to take effect. Therefore, this repulsive force can be used as a return torque to return the support 200 to its initial position.

[0138] Reference Figure 6 When the support 200 rotates about an axis perpendicular to both the first rotation axis (Z-axis) and the second rotation axis (X-axis), the same polarities of the first sub-magnetic body 511 and the third sub-magnetic body 521 move closer to each other, and the same polarities of the second sub-magnetic body 512 and the fourth sub-magnetic body 522 move closer to each other, allowing a strong repulsive force to take effect. Therefore, this repulsive force can be used as a return torque to return the support 200 to its initial position.

[0139] Figure 7 This is a side view of a reflection module according to another embodiment of the present disclosure. Figure 8 This is a rear view of a reflection module according to another embodiment of the present disclosure, and Figure 9 This is a plan view of a reflection module according to another embodiment of the present disclosure.

[0140] Reference Figures 7 to 9 The configuration of the magnetic part 500 differs from that in the aforementioned implementation.

[0141] The magnetic part 500 includes a first magnetic main body part 510 and a second magnetic main body part 520.

[0142] The first magnetic main body portion 510 can be mounted on the bracket 200, and the second magnetic main body portion 520 can be mounted on the housing 100. The first magnetic main body portion 510 and the second magnetic main body portion 520 can face each other in the direction of the first rotation axis (Z-axis).

[0143] The first magnetic main body portion 510 includes a first sub-magnetic main body 511 and a second sub-magnetic main body 512. The first sub-magnetic main body 511 and the second sub-magnetic main body 512 may be arranged to be spaced apart in a direction perpendicular to both the first rotation axis (Z-axis) and the second rotation axis (X-axis) (e.g., a direction perpendicular to the incident surface of the reflective member 300).

[0144] The first sub-magnetic body 511 and the second sub-magnetic body 512 can be magnets, respectively.

[0145] One surface of the first sub-magnetic body 511 and one surface of the second sub-magnetic body 512 can be configured to have an N pole or an S pole, respectively.

[0146] The polarity of one surface of the first submagnetic body 511 and the polarity of one surface of the second submagnetic body 512 can be opposite to each other.

[0147] The second magnetic body portion 520 includes a third sub-magnetic body 521 and a fourth sub-magnetic body 522. The third sub-magnetic body 521 and the fourth sub-magnetic body 522 may be arranged to be spaced apart in a direction perpendicular to both the first rotation axis (Z-axis) and the second rotation axis (X-axis) (e.g., a direction perpendicular to the incident surface of the reflective member 300).

[0148] The third sub-magnetic body 521 and the fourth sub-magnetic body 522 can be made of materials that can generate attractive forces with the first sub-magnetic body 511 and the second sub-magnetic body 512, respectively. For example, the third sub-magnetic body 521 and the fourth sub-magnetic body 522 can be magnetic yokes, respectively.

[0149] At least a portion of a surface of the first sub-magnetic body 511 and at least a portion of a surface of the third sub-magnetic body 521 may face each other in the direction of the first rotation axis (Z-axis). An attractive force acts between the first sub-magnetic body 511 and the third sub-magnetic body 521.

[0150] At least a portion of one surface of the second sub-magnetic body 512 and at least a portion of one surface of the fourth sub-magnetic body 522 may face each other in the direction of the first rotation axis (Z-axis). An attractive force acts between the second sub-magnetic body 512 and the fourth sub-magnetic body 522.

[0151] The distance between the first sub-magnetic body 511 and the second sub-magnetic body 512 can be narrower than the distance between the third sub-magnetic body 521 and the fourth sub-magnetic body 522.

[0152] Reference Figures 7 to 9 The bracket 200 can rotate relative to the housing 100 to correct for vibration.

[0153] Even when the power to the drive unit is turned off and the driving force is removed, the attractive force still acts between the first magnetic body portion 510 and the second magnetic body portion 520, and this attractive force can be used as a return torque to return the bracket 200 to its initial position.

[0154] Figure 10 This is a side view of the reflection module, showing the driving unit of the reflection module according to an embodiment of the present disclosure. Figure 11 yes Figure 10 The rear view, and Figure 12 yes Figure 10 Floor plan.

[0155] also, Figures 13A to 13C This is a diagram illustrating the driving unit of a reflection module according to an embodiment of the present disclosure.

[0156] Reference Figures 10 to 13C The reflection module according to the embodiments of the present disclosure includes a first driving unit 600 and a second driving unit 700.

[0157] The rotation direction of the bracket 200 driven by the first drive unit 600 and the rotation direction of the bracket 200 driven by the second drive unit 700 are different from each other.

[0158] The first driving unit 600 includes multiple coils. For example, the first driving unit 600 includes a first coil 610 and a second coil 620.

[0159] The first coil 610 and the second coil 620 can be mounted on the housing 100. The first coil 610 and the second coil 620 can be arranged to be spaced apart from each other.

[0160] The direction in which the first coil 610 and the second coil 620 are spaced apart from each other can be perpendicular to the direction in which the first sub-magnetic body 511 and the second sub-magnetic body 512 are spaced apart from each other.

[0161] The first coil 610 and the second coil 620 may be arranged to be spaced apart in a direction perpendicular to both the first rotation axis (Z-axis) and the second rotation axis (X-axis) (e.g., a direction perpendicular to the incident surface of the reflector 300).

[0162] The first coil 610 and the second coil 620 can be wound separately to give them thickness in the direction toward the support 200.

[0163] For example, the first coil 610 and the second coil 620 can be patterned coils or winding coils in which a metal layer is patterned on a substrate, respectively.

[0164] The first coil 610 can be disposed between one side of the third sub-magnetic body 521 and one side of the fourth sub-magnetic body 522, and the second coil 620 can be disposed between the other side of the third sub-magnetic body 521 and the other side of the fourth sub-magnetic body 522.

[0165] The first coil 610 and the second coil 620 each have an inner surface and an outer surface, and the inner and outer surfaces may each have a curved shape. Here, when viewed in the direction of the first rotation axis (Z-axis), the inner surface may be a surface facing the rotation center of the support 200, and the outer surface may be a surface opposite to the inner surface. Furthermore, the inner surfaces of the first coil 610 and the second coil 620 may refer to surfaces that are adjacent to each other.

[0166] When current flows through the first coil 610 and the second coil 620 respectively, the first coil 610 and the second coil 620 can be used as electromagnets.

[0167] For example, when power is supplied to the first coil 610, a magnetic field can be formed around the first coil 610. In this case, one side of the first coil 610 (the side facing the support 200) and the other side of the first coil 610 (the opposite side of the first side) can have different polarities. Furthermore, the polarity of one side and the other side of the first coil 610 can be changed by controlling the direction of the current flowing in the first coil 610.

[0168] Furthermore, when power is supplied to the second coil 620, a magnetic field can be formed around the second coil 620. In this case, one side of the second coil 620 (the side facing the support 200) and the other side of the second coil 620 (the opposite side of the first side) can each have different polarities. Moreover, the polarity of one side and the other side of the second coil 620 can be changed by controlling the direction of the current flowing in the second coil 620.

[0169] Reference Figures 13A to 13CWhen one side of the first coil 610 has a polarity opposite to that of the first sub-magnetic body 511, an attractive force can act between that side of the first coil 610 and the first sub-magnetic body 511. When one side of the second coil 620 has a polarity opposite to that of the second sub-magnetic body 512, an attractive force can act between that side of the second coil 620 and the second sub-magnetic body 512.

[0170] Therefore, the bracket 200 can rotate relative to the housing 100.

[0171] On the other hand, reference Figure 10 The second driving unit 700 may include a driving magnet 710 and a third coil 720.

[0172] The driving magnet 710 can be mounted on the bracket 200, and the third coil 720 can be fixed to the housing 100. The driving magnet 710 and the third coil 720 can face each other in a direction perpendicular to the incident surface of the reflecting member 300.

[0173] Therefore, the bracket 200 can rotate relative to the housing 100 by the electromagnetic force between the driving magnet 710 and the third coil 720.

[0174] Figure 14 This is a side view of the reflection module, showing a modified example of the first drive unit, and... Figures 15A to 15C This is a diagram illustrating a modified example of the first drive unit.

[0175] Reference Figure 14 The second magnetic main body 520 can be disposed on the inner surface of the housing 100, and the first driving unit 600 can be disposed on the outer surface of the housing 100.

[0176] and Figure 10 Compared to the previous implementation, since a larger installation space can be ensured for the first drive unit 600, the design freedom of the first coil 610 and the second coil 620 can be increased.

[0177] As described above, according to one or more embodiments of this disclosure, the reflective module can rotate the reflective member with a simple structure to correct jitter, and the position of the reflective member can be adjusted even when there is no power supply.

[0178] While specific examples have been shown and described above, it will be apparent upon understanding this disclosure that various changes in form and detail may be made to these examples without departing from the spirit and scope of the claims and their equivalents. The 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 applied to similar features or aspects in other examples. Suitable results may also be obtained if the described techniques are performed in a different order, and / or if components in the described 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 limited by the specific embodiments 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 reflection module, comprising: case; The bracket is rotatably mounted relative to the housing; The reflective component is connected to the bracket; A support portion is disposed between the housing and the bracket, and supports the bracket so that the bracket can rotate in multiple directions; The first magnetic main body portion is disposed in the bracket and includes a first magnet and a second magnet disposed spaced apart from each other; as well as The second magnetic main body is disposed within the housing and includes a third magnet and a fourth magnet arranged spaced apart from each other. The attractive forces act between the first magnet and the third magnet, and between the second magnet and the fourth magnet, respectively. Wherein, the polarity of one surface of the first magnet and the polarity of one surface of the second magnet are opposite to each other, and The polarity of one surface of the third magnet and the polarity of one surface of the fourth magnet are opposite to each other.

2. The reflection module according to claim 1, wherein, The direction in which the first magnet and the second magnet are spaced apart from each other is the same as the direction in which the third magnet and the fourth magnet are spaced apart from each other.

3. The reflection module according to claim 1, wherein, The distance between the center of the first magnet and the center of the second magnet is less than the distance between the center of the third magnet and the center of the fourth magnet.

4. The reflection module according to claim 1, wherein, A portion of the first magnetic body portion and a portion of the second magnetic body portion face each other in one direction, and When viewed in one direction, the first magnetic body portion is closer to the support portion than the second magnetic body portion.

5. The reflection module according to claim 1, wherein, A portion of one surface of the first magnet and a portion of one surface of the third magnet face each other, and Wherein, a portion of one surface of the second magnet and a portion of one surface of the fourth magnet face each other.

6. The reflection module according to claim 1, wherein, The third magnet is configured to cover, in one direction, half the width of the surface of the first magnet, and The fourth magnet is configured to cover a width less than half the width of the surface of the second magnet in one direction.

7. The reflection module according to claim 1, wherein, The polarity of one surface of the first magnet and the polarity of one surface of the fourth magnet are the same. The polarity of one surface of the second magnet and the polarity of one surface of the third magnet are the same.

8. The reflection module according to claim 1, wherein, The first to the fourth magnets each have a curved inner surface and an outer surface.

9. The reflection module according to claim 8, wherein, The length of the third magnet is longer than the length of the first magnet, and The fourth magnet is longer than the second magnet.

10. The reflection module according to claim 8, wherein, The area of ​​one surface of the third magnet is greater than the area of ​​one surface of the first magnet, and The area of ​​one surface of the fourth magnet is greater than the area of ​​one surface of the second magnet.

11. The reflection module according to claim 8, wherein, When viewed from one direction, the inner surface of the first magnet, the outer surface of the first magnet, the inner surface of the third magnet, and the outer surface of the third magnet are concentric circles. When viewed in one direction, the inner surface of the second magnet, the outer surface of the second magnet, the inner surface of the fourth magnet, and the outer surface of the fourth magnet are concentric circles.

12. The reflection module according to claim 1, further comprising: A first driving unit is disposed within the housing and includes a first coil and a second coil. The direction in which the first coil and the second coil are spaced apart from each other is perpendicular to the direction in which the third magnet and the fourth magnet are spaced apart from each other.

13. The reflection module according to claim 12, wherein, The first coil and the second coil are wound to have a thickness in the direction toward the support.

14. The reflection module according to claim 12, wherein, The third magnet and the fourth magnet are respectively disposed on the inner surface of the housing, and The first coil and the second coil are respectively disposed on the inner surface of the housing.

15. The reflection module according to claim 14, wherein, The first coil is disposed between one side of the third magnet and one side of the fourth magnet, and The second coil is disposed between the other side of the third magnet and the other side of the fourth magnet.

16. The reflection module according to claim 12, wherein, The first coil and the second coil each have a curved inner surface and an outer surface, respectively.

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