Optical module and camera module

Abstract

An optical module and a camera module are provided. The optical module includes: a housing; a rotation bracket disposed in the housing and configured to rotate about a first rotation axis; a reflection bracket on which an optical member is mounted, the reflection bracket being supported by the rotation bracket, and configured to rotate about a second rotation axis perpendicular to the first rotation axis; the rotating shaft ball is arranged between the shell and the rotating bracket and forms a first rotating shaft; a first sensing magnet disposed on the rotation bracket at a position spaced apart from the rotation shaft ball in a direction perpendicular to both the first rotation shaft and the second rotation shaft; and a first position sensor disposed on the housing at a position spaced apart from the rotation shaft ball in a direction perpendicular to both the first rotation shaft and the second rotation shaft.

Description

[0001] Cross-reference to related applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2024-0046835, filed on April 5, 2024, with the Korean Intellectual Property Office, and Korean Patent Application No. 10-2024-0092981, filed on July 15, 2024, the entire disclosure of which is incorporated herein by reference for all purposes. Technical Field

[0003] The following description relates to optical modules and camera modules that include optical modules. Background Technology

[0004] Nowadays, most mobile devices, including smartphones, are equipped with camera modules.

[0005] Despite their small size, camera modules implemented in mobile devices are manufactured to perform operations such as, but not limited to, autofocus and image stabilization.

[0006] Autofocus and shake correction are achieved by driving optical elements, and in the camera module, actuators provide force to drive the optical elements.

[0007] Among various actuators, the VCM actuator, which consists of a permanent magnet and a coil, has the advantage of miniaturization and can achieve precise control, so it is often used in camera modules of many mobile devices.

[0008] However, due to space constraints in mobile devices, the problem is that because the coil and position sensing element share a single permanent magnet, it may be difficult to increase the driving force and magnetic interference cannot be avoided. Utility Model Content

[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 general, the optical module includes: a housing; a rotating bracket disposed within the housing and configured to rotate about a first rotation axis; a reflective bracket on which optical components are mounted and supported by the rotating bracket, the reflective bracket being configured to rotate about a second rotation axis perpendicular to the first rotation axis; a rotating sphere disposed between the housing and the rotating bracket, forming the first rotation axis; a first sensing magnet disposed on the rotating bracket at a position spaced apart from the rotating sphere in a direction perpendicular to both the first and second rotation axes; and a first position sensor disposed on the housing at a position spaced apart from the rotating sphere in a direction perpendicular to both the first and second rotation axes.

[0011] The optical module may further include: a first driving magnet disposed on a rotating support; and a first driving coil disposed in the housing facing the first driving magnet, wherein the first driving magnet is magnetized such that the surface of the first driving magnet facing the first driving coil includes a first polarity region having a first polarity and a second polarity region having a second polarity different from the first polarity.

[0012] The first sensing magnet can be magnetized such that the surface of the first sensing magnet facing the housing includes a first polarity region having a first polarity and a second polarity region having a second polarity different from the first polarity.

[0013] The first driving magnet may include two magnets, wherein one of the two magnets of the first driving magnet is configured such that a first polarity region of the one magnet is adjacent to a first sensing magnet, and the other magnet of the first driving magnet is configured such that a second polarity region of the other magnet is adjacent to the first sensing magnet.

[0014] The first sensing magnet can be configured such that a first polarity region of the first sensing magnet is adjacent to a magnet among two magnets whose first polarity region is adjacent to the first sensing magnet, and a second polarity region of the first sensing magnet is adjacent to a magnet among two magnets whose second polarity region is adjacent to the first sensing magnet.

[0015] The first position sensor can be configured to face the first sensing magnet.

[0016] The first sensing magnet can be magnetized such that the surface of the first sensing magnet facing the first position sensor includes a first polarity region and a second polarity region, wherein a neutral region can be disposed between the first polarity region and the second polarity region, and wherein the first position sensor can be disposed facing the neutral region.

[0017] The first position sensor may be spaced apart from the first sensing magnet in a direction perpendicular to both the first and second rotation axes.

[0018] In general, the optical module includes: a housing; a rotating bracket disposed within the housing and configured to rotate about a first rotation axis; a reflective bracket on which optical components are mounted, the reflective bracket being supported on the rotating bracket and configured to rotate about a second rotation axis perpendicular to the first rotation axis; a plurality of first driving magnets disposed on the rotating bracket; and a first sensing magnet disposed between the plurality of first driving magnets and having a gap with the plurality of first driving magnets in the direction of the second rotation axis.

[0019] Multiple first driving magnets and first sensing magnets can be magnetized such that the surfaces of the multiple first driving magnets facing the housing and the surfaces of the first sensing magnets facing the housing include a first polarity region having a first polarity and a second polarity region having a second polarity different from the first polarity.

[0020] Multiple first driving magnets and first sensing magnets can be configured such that the same polarity regions of the first driving magnets and the first sensing magnets can be adjacent to each other.

[0021] Multiple first drive coils can be disposed in the housing to face each of the multiple first drive magnets.

[0022] The first position sensor can be housed in the housing so as to face the first sensing magnet.

[0023] The optical module may also include a first position sensor, which is arranged in the housing and spaced apart from the first sensing magnet in a direction perpendicular to both the first and second rotation axes.

[0024] Multiple first driving magnets can be arranged at an angle to each other, such that the distance between the first ends of the multiple first driving magnets adjacent to the first sensing magnet is closer than the distance between the second ends of the multiple first driving magnets disposed away from the first sensing magnet.

[0025] The camera module may include an optical module and a lens module, the lens module including one or more lenses disposed in the optical axis direction and configured to move in the optical axis direction.

[0026] In general, the optical module includes: a housing; a rotating bracket disposed within the housing and configured to rotate about a first rotation axis; a reflective bracket on which optical components are mounted, the reflective bracket being supported by the rotating bracket and configured to rotate about a second rotation axis perpendicular to the first rotation axis; a rotating sphere disposed between the housing and the rotating bracket, forming the first rotation axis; a first sensing magnet disposed on the rotating bracket at a position spaced apart from the rotating sphere in a direction perpendicular to both the first and second rotation axes; and a driving magnet including a first driving magnet and a second driving magnet, wherein the first driving magnet, the first sensing magnet, and the second driving magnet are sequentially disposed along an axis perpendicular to the first rotation axis.

[0027] Other features and aspects will become apparent from the following detailed description, drawings, and claims. Attached Figure Description

[0028] Figure 1 This is a perspective view of an exemplary camera module according to one or more embodiments.

[0029] Figure 2 This is a schematic exploded perspective view of an exemplary camera module according to one or more embodiments.

[0030] Figure 3 It is a perspective view showing the arrangement of a first lens module, a folding module, and a second lens module according to one or more embodiments.

[0031] Figure 4 This is a perspective view of an exemplary first lens module according to one or more embodiments.

[0032] Figure 5 This is a perspective view of an exemplary folding module according to one or more embodiments.

[0033] Figure 6 This is an exploded perspective view of an exemplary folding module according to one or more embodiments.

[0034] Figure 7 From and Figure 6 Exploded stereoscopic views of the folded module viewed from different angles.

[0035] Figure 8 This is a plan view showing a first driving portion and a first position sensing portion according to one or more embodiments.

[0036] Figure 9 , Figure 10 and Figure 11 This is a plan view showing the second driving portion and the second position sensing portion according to one or more embodiments.

[0037] Figure 12 This is an exploded perspective view of an exemplary second lens module according to one or more embodiments.

[0038] Figure 13 This is a bottom perspective view of an exemplary second lens module according to one or more embodiments.

[0039] 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

[0040] The following detailed embodiments are provided to help the reader gain 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 after understanding the disclosure of this application. For example, the order of operations and / or the order within operations described herein are merely examples and are not limited to the order set forth herein, but can be changed as will be apparent after understanding the disclosure of this application, except for the order of operations and / or the order within operations that must occur in a certain order. As another example, the order of operations and / or the order within operations can be performed in parallel, except for at least a portion of the order of operations and / or at least a portion of the order within operations that must occur in a certain order (e.g., a specific order). Furthermore, for clarity and brevity, descriptions of features known after understanding the disclosure of this application may be omitted.

[0041] Although terms such as “first,” “second,” and “third,” or A, B, (a), (b), etc., may be used herein to describe various components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Each of these terms is not intended to define, for example, the nature, order, or sequence of the corresponding component, assembly, region, layer, or part, but only to distinguish the corresponding component, assembly, region, layer, or part from other components, assemblies, regions, layers, or parts. 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.

[0042] Throughout this specification, when a component, element, or layer is described as being “on,” “connected to,” “attached to,” or “joined to” another component, element, or layer, it may be directly “on” (e.g., in contact with), directly “connected to,” directly “attached to,” or directly “joined to” the other component, element, or layer, or one or more other components, elements, or layers may reasonably be present between them. When a component, element, or layer is described as being “directly” “on,” “directly connected to,” “directly attached to,” or “directly joined to” another component, element, or layer, there are no other components, elements, or layers between them. Similarly, expressions such as “between” and “immediately between” and “adjacent to” and “immediately adjacent to” can also be interpreted as described above.

[0043] The terminology used herein is for 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. As a non-limiting example, 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, nor do they exclude the alternative presence of the features, quantities, operations, components, elements, and / or combinations thereof. Furthermore, while one embodiment may describe the use of the terms “comprising,” “including,” and “having” to specify the presence of the stated features, quantities, operations, components, elements, and / or combinations thereof, other embodiments may exist in which one or more of the stated features, quantities, operations, components, elements, and / or combinations thereof are absent.

[0044] 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. The phrases “at least one of A, B, and C” are intended to have a separate meaning, and these phrases also include examples in which one or more of A, B, and C may be present (e.g., any combination of one or more of A, B, and C), unless the corresponding description and implementation require that such an enumeration (e.g., “at least one of A, B, and C”) be interpreted as having a combined meaning.

[0045] The features described herein may be implemented in various 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, apparatus, and / or systems described herein will be apparent upon understanding the disclosure of this application. In this document, the term “may” (e.g., what an example or implementation may include or implement) is used with respect to an example or implementation to mean that there exists at least one example or implementation that includes or implements this feature, and that all examples and implementations are not limited thereto. The terms “example” or “implementation” as used herein have the same meaning (e.g., the phrase “in one example” has the same meaning as “in one implementation,” and “in one or more examples” has the same meaning as “in one or more implementations”).

[0046] In one or more examples, the X direction, Y direction, and Z direction refer to directions parallel to the X-axis, Y-axis, and Z-axis, respectively, as shown in the attached figures. Additionally, unless otherwise stated, the X direction is a concept that includes both the +X-axis and -X-axis directions, and this concept also applies to the Y and Z directions.

[0047] In one or more examples, two directions (or axes) that are parallel or perpendicular to each other also include examples where two directions (or axes) are substantially parallel or substantially perpendicular. For example, if the first axis and the second axis are perpendicular to each other, it means that the first axis and the second axis form an angle of 90 degrees or close to 90 degrees.

[0048] In the following, one or more embodiments will be described in detail with reference to the accompanying drawings. However, the spirit of the one or more embodiments is not limited to the embodiments presented. For example, those skilled in the art who understand the spirit of the one or more embodiments may suggest other embodiments included within the scope of the examples by adding, changing, or deleting components, etc., and these other embodiments will also be included within the scope of this disclosure.

[0049] One or more implementations involve optical modules and camera modules, and the camera module can be mounted on a portable electronic device such as, but not limited to, a mobile communication terminal, a smartphone, a tablet PC, etc.

[0050] An optical module can be a configuration that includes optical components. In one or more examples, an optical module can be understood as including one or more of a lens module, a folding module (reflection module), and an image sensor module. Additionally, an optical component can be understood as one or more of a lens, a reflective element, and an image sensor.

[0051] One or more examples may provide a camera module with improved shake correction performance. Specifically, one or more examples may provide a camera module with increased drive force and reduced magnetic interference.

[0052] Figure 1 This is a perspective view of an exemplary camera module 100 according to one or more embodiments.

[0053] According to one or more embodiments, a camera module 100 may have a length in a direction (Z direction) perpendicular to the direction in which light is incident (X direction).

[0054] The direction in which light is incident (X-direction) can be parallel to the thickness direction (X-direction) of the camera module 100. Furthermore, the thickness direction (X-direction) of the camera module 100 can be parallel to the thickness direction of the mobile device in which the camera module 100 is incorporated. That is, according to one or more embodiments, even if the length of the camera module 100 increases, the thickness of the mobile device will not increase.

[0055] Figure 2 This is a schematic exploded perspective view of an exemplary camera module 100 according to one or more embodiments, and Figure 3 This is a perspective view showing the arrangement of a first lens module 2000, a folding module 3000, and a second lens module 4000 according to one or more embodiments.

[0056] According to one or more embodiments, camera module 100 can be configured to change the path of light. For example, light incident on camera module 100 can be redirected within camera module 100 to a direction perpendicular to the incident direction (X direction) (Z direction).

[0057] Reference Figure 2 The camera module 100 may include a folding module 3000 that alters the path of light incident on the camera module 100 by approximately 90 degrees.

[0058] The folding module 3000 may be equipped with a reflective component 3100. Figure 6 This can change the path of light.

[0059] Additionally, the camera module 100 may include one or more lenses L (see Figure 4 Multiple lens modules 2000 and 4000.

[0060] The multiple lens modules 2000 and 4000 may include a first lens module 2000 disposed in front of the folding module 3000 based on the light travel path and a second lens module 4000 disposed behind the folding module 3000.

[0061] In this embodiment, the optical axis (X-axis) of the first lens module 2000 and the optical axis (Z-axis) of the second lens module 4000 may be different from each other. For example, the optical axis (X-axis) of the first lens module 2000 and the optical axis (Z-axis) of the second lens module 4000 may be perpendicular to each other.

[0062] In this embodiment, the camera module 100 can perform autofocus and shake correction operations. The autofocus operation can be implemented by driving the second lens module 4000, and the shake correction operation can be implemented by driving the first lens module 2000 and the folding module 3000.

[0063] The first lens module 2000, the folding module 3000, and the second lens module 4000 can be housed individually or together in the housing 1100.

[0064] Reference Figure 2 The camera module 100 may include a housing 1100 that houses the first lens module 2000, the folding module 3000, and the second lens module 4000.

[0065] The housing 1100 may be a box-shaped member with an open upper portion. The first lens module 2000, the folding module 3000, and the second lens module 4000 may be disposed within the housing 1100.

[0066] The camera module 100 may include an image sensor 5000 that converts light incident on the camera module 100 into electrical signals.

[0067] In the example, the image sensor 5000 can be mounted on a printed circuit board and housed in the housing 1100.

[0068] Light incident on camera module 100 can pass sequentially through first lens module 2000, folding module 3000, and second lens module 4000, and can then be received by image sensor 5000. Image sensor 5000 can generate an electrical signal corresponding to the light incident on image sensor 5000.

[0069] The filter section 6000 can be additionally disposed between the second lens module 4000 and the image sensor 5000.

[0070] The filter section 6000 may have the function of blocking light in the infrared region that passes through the second lens module 4000 and is incident on the image sensor 5000.

[0071] The camera module 100 may include a housing 1200 that covers the open upper portion of the housing 1100.

[0072] Since the housing 1200 is connected to the housing 1100, the components housed in the housing 1100 can be protected from the influence of the external environment.

[0073] In the example, housing 1200 may include an opening 1210 through which light enters from the outside.

[0074] In one embodiment, the first lens module 2000 may be disposed in the opening 1210, and external light may be incident on the first lens module 2000.

[0075] Figure 4 This is a perspective view of an exemplary first lens module 2000 according to one or more embodiments.

[0076] The first lens module 2000 may include a first lens barrel 2100.

[0077] One or more lenses L can be mounted inside the first lens barrel 2100 along the first optical axis direction (X-axis direction).

[0078] The first lens barrel 2100 can be connected to the folding module 3000 and can be driven as a whole with the folding module 3000 during jitter correction.

[0079] Figure 5 This is a perspective view of a folding module 3000 according to one or more embodiments. Figure 6 This is an exploded perspective view of a folding module 3000 according to one or more embodiments, and Figure 7 From and Figure 6 Exploded stereoscopic views of the folding module 3000 observed from different angles.

[0080] The folding module 3000 may include a reflective member 3100, a reflective bracket 3200 connected to the reflective member 3100, and a rotating bracket 3300 supporting the reflective bracket 3200.

[0081] In the example, the reflecting member 3100 can be a mirror or a prism.

[0082] The reflecting member 3100 may include a reflecting surface 3110 that reflects light incident along a first optical axis (X-axis direction) to a second optical axis (Z-axis direction). The reflecting surface 3110 may be inclined relative to the first optical axis (X-axis direction) and the second optical axis (Z-axis direction). If the reflecting member 3100 is a prism, it may also include an incident surface 3120 and an exit surface 3130.

[0083] Although not shown in the accompanying drawings, at least one lens with positive refractive power (hereinafter referred to as the corrective lens) may be connected to the reflective member 3100.

[0084] In this example, the correction lens can be attached to the exit surface 3130 of the reflecting member 3100 and can rotate together with the reflecting member 3100. In this example, errors in the optical path that occur during jitter correction can be compensated.

[0085] The reflective component 3100 and the first lens module 2000 can be connected in the reflective bracket 3200.

[0086] The first lens module 2000 and the reflective member 3100 can be arranged along the first optical axis (X-axis direction), and the center of the lens L and the center of the reflective surface 3110 can be arranged on the first optical axis (X-axis).

[0087] The reflector bracket 3200 can be supported by the rotating bracket 3300 for rotation.

[0088] In one embodiment, the reflective bracket 3200 can rotate relative to the rotating bracket 3300 about a first rotation axis (Y-axis). At this time, the reflective member 3100 and the first lens module 2000 can rotate together with the reflective bracket 3200 about the first rotation axis (Y-axis).

[0089] The folding module 3000 may include a drive portion (hereinafter referred to as the "first drive portion") of the drive reflector bracket 3200.

[0090] The first driving part may include a first driving magnet 3231 and a first driving coil 3232.

[0091] The first driving magnet 3231 can be disposed in the reflective bracket 3200, and the first driving coil 3232 can be disposed in the housing 1100 through the main substrate 7000.

[0092] The first driving magnet 3231 and the first driving coil 3232 may be arranged to face each other in the second optical axis direction (Z-axis direction). The reflective bracket 3200 may include an extension 3210 extending to the rear of the rotating bracket 3300 to face the housing 1100, and the first driving magnet 3231 may be disposed in the extension 3210.

[0093] Reference Figure 8 The first driving magnet 3231 can be magnetized such that a surface facing the first driving coil 3232 can have both an N pole and a S pole. For example, the surface of the first driving magnet 3231 can be provided with an N pole (or a first polarity region) P1, a neutral region N1, and an S pole (or a second polarity region) P2 in the first optical axis direction (X-axis direction).

[0094] The first driving coil 3232 can be disposed in the housing 1100, facing the first driving magnet 3231, and simultaneously disposed on the main substrate 7000. The housing 1100 may include a through hole, and the first driving coil 3232 can be disposed in the through hole to directly face the first driving magnet 3231.

[0095] When power is supplied to the first drive coil 3232, the first drive coil 3232 and the first drive magnet 3231 can generate a driving force in a direction perpendicular to the direction in which they face each other, such as in the first optical axis direction (X-axis direction), and the reflector bracket 3200 can rotate around the first rotation axis (Y-axis) by the driving force.

[0096] Since the first driving magnet 3231 is disposed in the reflective bracket 3200, it can be a moving component that rotates together with the reflective bracket 3200, and the first driving coil 3232 can be a fixed component that does not move.

[0097] The first spherical member 3430 supporting the rotation of the reflector bracket 3200 can be disposed between the reflector bracket 3200 and the rotating bracket 3300.

[0098] The first ball component 3430 may form a first rotation axis (Y-axis). For example, the first ball component 3430 may include a plurality of balls spaced apart in the direction of the first rotation axis (Y-axis direction).

[0099] When viewed in the first rotational axis direction (Y-axis direction), a portion of the reflective member 3100 may overlap with the first spherical member 3430. For example, a virtual line connecting the first spherical member 3430 in the first rotational axis direction (Y-axis direction) may overlap with the reflective surface 3110.

[0100] The reflective bracket 3200 and the rotating bracket 3300 may each be provided with receiving slots to receive different parts of the first ball component 3430. In one embodiment, the reflective bracket 3200 may be provided with a first receiving slot 3220, and the rotating bracket 3300 may be provided with a second receiving slot 3310 facing the first receiving slot 3220.

[0101] The first ball component 3430 can form the rotation axis of the reflector bracket 3200 and rotate in an appropriate position. The first ball component 3430 is accommodated in the first receiving groove 3220 and the second receiving groove 3310.

[0102] To prevent the first ball component 3430 from separating, an attractive force can be applied between the reflective support 3200 and the rotating support 3300. For this purpose, the first magnetic material 3240 and the second magnetic material 3340 can be arranged to face each other in the reflective support 3200 and the rotating support 3300, respectively.

[0103] In one embodiment, the first magnetic material 3240 disposed in the reflective support 3200 can be a traction yoke, and the second magnetic material 3340 disposed in the rotating support 3300 can be a traction magnet. However, in another embodiment, both the first magnetic material 3240 and the second magnetic material 3340 can be traction magnets.

[0104] The first magnetic material 3240 and the second magnetic material 3340 can face each other in the second optical axis direction (Z-axis direction) and can generate an attractive force in the direction in which they face each other.

[0105] Due to the attractive force between the first magnetic material 3240 and the second magnetic material 3340, the reflective support 3200 can be supported on the rotating support 3300 in the second optical axis direction (Z-axis direction). Additionally, the first spherical member 3430 can remain in contact with both the reflective support 3200 and the rotating support 3300.

[0106] Figure 8 This is a plan view showing a first driving portion and a first position sensing portion according to one or more embodiments.

[0107] The folding module 3000 may include a position sensing portion (hereinafter referred to as the first position sensing portion) that detects the position of the reflective bracket 3200.

[0108] The first position sensing portion may include a first sensing magnet 3234 and a first position sensor 3233. In a non-limiting example, the first position sensor 3233 may be a Hall sensor.

[0109] The first sensing magnet 3234 can be disposed on the extension portion 3210 of the reflective bracket 3200. For example, the first sensing magnet 3234 can be disposed at a position spaced apart from the first driving magnet 3231 in the first optical axis direction (X-axis direction).

[0110] The first position sensor 3233 can be disposed in the housing 1100 via the main substrate 7000. For example, the first position sensor 3233 can be disposed at a position spaced apart from the first drive coil 3232 in the first optical axis direction (X-axis direction).

[0111] The first sensing magnet 3234 can be magnetized such that a surface facing the first position sensor 3233 can have an N pole or a S pole.

[0112] In one embodiment, a surface of the first sensing magnet 3234 may have a polarity opposite to that of the polarity region adjacent to the first driving magnet 3231 of the first sensing magnet 3234.

[0113] In the example, when the first sensing magnet 3234 is disposed below the first driving magnet 3231 according to the accompanying drawings, one surface of the first sensing magnet 3234 may have an N pole (or a first polarity region) P1. As another example, when the first sensing magnet 3234 is disposed above the first driving magnet 3231 according to the accompanying drawings, one surface of the first sensing magnet 3234 may have an S pole (or a second polarity region) P2.

[0114] According to one or more embodiments, the camera module 100 can significantly increase the size of the first drive coil 3232 facing the first drive magnet 3231 and increase the driving force by providing a first sensing magnet 3234 that separately provides the position of the sensing reflector bracket 3200.

[0115] The first position sensor 3233 can be set at the position where the position change of the first sensing magnet 3234 is detected.

[0116] In one embodiment, the first position sensor 3233 may be configured to face the gap between the first driving magnet 3231 and the first sensing magnet 3234. In this example, the gap between the first driving magnet 3231 and the first sensing magnet 3234 can function as a neutral region N1.

[0117] When power is supplied to the first drive coil 3232, the position of the reflector bracket 3200 detected by the first position sensor 3233 may be different from the actual position of the reflector bracket 3200 due to the magnetic field generated by the first drive coil 3232.

[0118] However, according to one or more embodiments, the first position sensor 3233 may be spaced apart from the first drive coil 3232, so that it is less affected by the magnetic field of the first drive coil 3232, thereby improving the sensing accuracy of the first position sensor 3233.

[0119] In the example, although not shown in the accompanying drawings, the first sensing magnet 3234 may be integrally formed with the first driving magnet 3231. In the example, the first driving magnet 3231 may also include a neutral region N1 and an N pole (or first polarity region) P1 or an S pole (or second polarity region) P2 in the first optical axis direction (X-axis direction).

[0120] In this example, the first position sensor 3233 can be configured to face a neutral region that is positioned when the first drive magnet 3231 extends in the first optical axis direction (X-axis direction).

[0121] Refer again Figure 6The rotating bracket 3300, on which the reflector bracket 3200 is supported, can be supported on the housing 1100 to allow rotation. In one embodiment, the rotating bracket 3300 can rotate relative to the housing 1100 about a second rotation axis (X-axis) perpendicular to the first rotation axis (Y-axis). In this example, the reflector bracket 3200, the reflector member 3100 connected to the reflector bracket 3200, and the first lens module 2000 can rotate together with the rotating bracket 3300 about the second rotation axis (X-axis).

[0122] The folding module 3000 may include a drive portion (hereinafter referred to as the second drive portion) that drives the rotating bracket 3300.

[0123] The second driving part may include a second driving magnet 3331 (e.g., Figure 9 3331a and 3331b) and the second drive coil 3332 (e.g., Figure 9 (3332a and 3332b).

[0124] In a non-limiting example, two of the second driving magnet 3331 and two of the second driving coil 3332 may be provided. However, this is merely an example, and the second driving magnet 3331 and the second driving coil 3332 may be provided in various quantities.

[0125] The second driving magnet 3331 can be disposed in the rotating bracket 3300, and the second driving coil 3332 can be disposed in the housing 1100 through the main substrate 7000.

[0126] The second driving magnet 3331 and the second driving coil 3332 can be arranged to face each other in the first optical axis direction (X-axis direction).

[0127] The second driving magnet 3331 can be disposed on the bottom surface of the rotating support 3300. In an embodiment, the two magnets 3331a and 3331b constituting the second driving magnet 3331 can be disposed at an angle relative to each other. In an example, the first distance between the first ends of the two magnets 3331a and 3331b can be closer than the second distance between the second ends of the two magnets 3331a and 3331b.

[0128] The second drive coil 3332 can be disposed in the housing 1100, facing the second drive magnet 3331, and simultaneously disposed on the main substrate 7000. The housing 1100 may include a through hole, and the second drive coil 3332 can be disposed in the through hole to directly face the second drive magnet 3331. In this example, the second drive magnet 3331 and the second drive coil 3332 can face each other one-to-one.

[0129] The second driving magnet 3331 can be magnetized such that a surface facing the second driving coil 3332 can have both an N pole and a S pole. In the example, the surface of the second driving magnet 3331 can be provided with an N pole (or a first polarity region) P1, a neutral region N1, and an S pole (or a second polarity region) P2 along the length of the magnet.

[0130] In the embodiment, one of the two magnets 3331a and 3331b constituting the second driving magnet 3331 may be provided with an N pole (or first polarity region) P1, a neutral region N1 and an S pole (or second polarity region) P2 in the length direction from one end to the other, and the other may be provided with an S pole (or second polarity region) P2, a neutral region N1 and an N pole (or first polarity region) P1 in the length direction from one end to the other.

[0131] When power is supplied to the second drive coil 3332, the second drive coil 3332 and the second drive magnet 3331 can generate a driving force in a direction perpendicular to the direction in which they face each other, and the rotating bracket 3300 can rotate around the second rotation axis (X-axis) by the driving force.

[0132] Since the second driving magnet 3331 can be disposed in the rotating bracket 3300, it can become a moving component that rotates together with the rotating bracket 3300, and the second driving coil 3332 can become a fixed component that cannot move.

[0133] The second ball component supporting the rotation of the rotating bracket 3300 can be disposed between the rotating bracket 3300 and the housing 1100.

[0134] The second ball component may include a rotation axis ball 3410 forming a second rotation axis (X-axis). The second rotation axis (X-axis) may pass through the rotation axis ball 3410. In addition, the second ball component may include a plurality of guide balls 3420 spaced apart from the rotation axis ball 3410.

[0135] The rotating bracket 3300 and the housing 1100 may each be provided with receiving grooves for receiving different parts of the rotating shaft ball 3410. In an embodiment, the rotating bracket 3300 may be provided with a third receiving groove 3321, and the housing 1100 may be provided with a fourth receiving groove 1121 facing the third receiving groove 3321.

[0136] The rotating shaft ball 3410 can be rotated in the appropriate position to form the rotating shaft of the rotating bracket 3300, and is simultaneously accommodated in the third receiving slot 3321 and the fourth receiving slot 1121.

[0137] Additionally, the rotating bracket 3300 and the housing 1100 may each be provided with a plurality of guide grooves, which accommodate different portions of the plurality of guide balls 3420. In an embodiment, the rotating bracket 3300 may be provided with a first guide groove 3323, and the housing 1100 may be provided with a second guide groove 1123 facing the first guide groove 3323.

[0138] The first guide groove 3323 and the second guide groove 1123 may be straight or curved in shape, and have a length in the rotation direction of the rotating bracket 3300.

[0139] Multiple guide balls 3420 can support the rotation of the rotating bracket 3300 by rolling in the rotation direction of the rotating bracket 3300 in the first guide groove 3323 and the second guide groove 1123.

[0140] To prevent the second ball component from separating, an attractive force can be applied between the rotating support 3300 and the housing 1100. For this purpose, a third magnetic material 3335 can be disposed in the housing 1100 to face the second driving magnet 3331.

[0141] In an embodiment, the third magnetic material 3335 disposed in the housing 1100 may be a traction yoke.

[0142] The third magnetic material 3335 can be configured to cover the outer surface of the main substrate 7000. That is, the third magnetic material 3335 can face the second driving magnet 3331, and the second driving coil 3332 is between them.

[0143] The second driving magnet 3331 and the third magnetic material 3335 can face each other in the first optical axis direction (X-axis direction) and can generate an attractive force in the direction in which they face each other.

[0144] Due to the attractive force between the second driving magnet 3331 and the third magnetic material 3335, the rotating support 3300 can be supported on the housing 1100 in the first optical axis direction (X-axis direction). Additionally, the second ball member can remain in contact with the rotating support 3300 and the housing 1100.

[0145] In addition, the third magnetic material 3335 can form a magnetic circuit with the second driving magnet 3331. The third magnetic material 3335 can concentrate the magnetic flux generated from the second driving magnet 3331.

[0146] Figures 9 to 11 This is a plan view showing the second driving portion and the second position sensing portion according to one or more embodiments.

[0147] The folding module 3000 may include a position sensing portion (hereinafter referred to as the second position sensing portion) that detects the position of the rotating bracket 3300.

[0148] The second position sensing portion may include a second sensing magnet 3334 and a second position sensor 3333. In the example, the second position sensor 3333 may be a Hall sensor.

[0149] The second sensing magnet 3334 can be disposed on the bottom surface of the rotating bracket 3300 at a position spaced apart from the rotating axis ball 3410 in the second optical axis direction (Z-axis direction). Therefore, the second sensing magnet 3334 can be generally disposed between the two second driving magnets 3331a and 3331b, so as to have a gap with the two second driving magnets 3331a and 3331b in the first rotating axis (Y-axis) direction.

[0150] The second position sensor 3333 can be disposed in the housing 1100 via the main substrate 7000. In the example, the second position sensor 3333 can be disposed at a position spaced apart from the rotating ball 3410 in the second optical axis direction (Z-axis direction). Therefore, the second position sensor 3333 can be disposed approximately between the two second drive coils 3332a and 3332b.

[0151] The second sensing magnet 3334 can be magnetized such that a surface facing the second position sensor 3333 or the housing 1100 can have both N and S poles. In this example, the surface of the second sensing magnet 3334 may not necessarily face the second position sensor 3333.

[0152] In an embodiment, one surface of the second sensing magnet 3334 may be provided with an N pole (or a first polarity region) P1, a neutral region N1, and an S pole (or a second polarity region) P2 in the length direction of the magnet.

[0153] The neutral region N1 of the second sensing magnet 3334 can be set at a position spaced apart from the rotating sphere 3410 in the second optical axis direction (Z-axis direction).

[0154] In an embodiment, the second sensing magnet 3334 and the second driving magnet 3331 may be configured such that each of the adjacent polarity regions has the same polarity.

[0155] Reference Figure 9 The first polarity region P1 of the second sensing magnet 3334 may be located adjacent to the first polarity region P1 of the driving magnet 3331b of the second driving magnet 3331, and the second polarity region P2 of the second sensing magnet 3334 may be located adjacent to the second polarity region P2 of the driving magnet 3331a of the second driving magnet 3331.

[0156] In another embodiment, the second sensing magnet 3334 and the second driving magnet 3331 may be configured such that adjacent polarity regions have opposite polarities.

[0157] Reference Figure 10 The first polarity region P1 of the second sensing magnet 3334 may be located adjacent to the second polarity region P2 of the driving magnet 3331a of the second driving magnet 3331, and the second polarity region P2 of the second sensing magnet 3334 may be located adjacent to the first polarity region P1 of the driving magnet 3331b of the second driving magnet 3331.

[0158] According to one or more embodiments, the camera module 100 can increase the size and number of the second drive coil 3332 facing the second drive magnet 3331 by providing a second sensing magnet 3334 separately to sense the position of the rotating bracket 3300, and the drive force can be increased since the multiple second drive magnets 3331 can be fully used to generate the drive force.

[0159] The second position sensor 3333 can be set at the location where the position change of the second sensing magnet 3334 is detected.

[0160] The second position sensor 3333 can be disposed in the housing 1100 at a position spaced apart from the rotating ball 3410 in the second optical axis direction (Z-axis direction).

[0161] In one embodiment, the second position sensor 3333 may be configured to face the neutral region N1 of the second sensing magnet 3334. In another embodiment, the second position sensor 3333 may be spaced apart from the second sensing magnet 3334 in the second optical axis direction (Z-axis direction).

[0162] When power is supplied to the second drive coil 3332, the position of the rotating bracket 3300 detected by the second position sensor 3333 may differ from the actual position of the rotating bracket 3300 due to the magnetic field generated by the second drive coil 3332.

[0163] However, according to one or more embodiments, the second position sensor 3333 is spaced apart from the second drive coil 3332, so that it is less affected by the magnetic field of the second drive coil 3332, thereby improving the sensing accuracy of the second position sensor 3333.

[0164] Figure 12 This is an exploded perspective view of a second lens module 4000 according to one or more embodiments, and Figure 13 This is an exploded perspective view of a second lens module 4000 as viewed from below, according to one or more embodiments.

[0165] The second lens module 4000 can be positioned between the folding module 3000 and the image sensor 5000.

[0166] The second lens module 4000 may include a second lens barrel 4100.

[0167] Multiple lenses L can be mounted inside the second lens barrel 4100 along the second optical axis (Z-axis direction).

[0168] The second lens barrel 4100 can be connected to the lens carrier 4200.

[0169] The lens support 4200 can be supported on the housing 1100 so that it can move.

[0170] In this embodiment, the lens support 4200 can move relative to the housing 1100 in the second optical axis direction (Z-axis direction). In this example, the second lens barrel 4100 can move together with the lens support 4200 in the second optical axis direction (Z-axis direction).

[0171] The second lens module 4000 may include a driving part (hereinafter referred to as the third driving part) of the driving lens carrier 4200.

[0172] The third driving part may include a third driving magnet 4310 and a third driving coil 4320.

[0173] The third driving magnet 4310 can be disposed in the lens carrier 4200, and the third driving coil 4320 can be disposed in the housing 1100 through the main substrate 7000.

[0174] The third driving magnet 4310 and the third driving coil 4320 can be arranged to face each other in a direction perpendicular to both the first optical axis (X-axis) and the second optical axis (Z-axis) (Y-axis direction).

[0175] The third driving magnet 4310 can be disposed on one or both side surfaces of the lens carrier 4200.

[0176] The third drive coil 4320 can be disposed in the housing 1100, facing the third drive magnet 4310, and simultaneously disposed on the main substrate 7000. The housing 1100 may include a through hole, and the third drive coil 4320 can be disposed in the through hole to directly face the third drive magnet 4310.

[0177] The third driving magnet 4310 can be magnetized such that a surface facing the third driving coil 4320 can have both an N pole and a S pole. For example, the surface of the third driving magnet 4310 can be provided with an N pole (or a first polarity region), a neutral region, and an S pole (or a second polarity region) in the second optical axis direction (Z-axis direction).

[0178] When power is supplied to the third drive coil 4320, the third drive coil 4320 and the third drive magnet 4310 can generate a driving force in a direction perpendicular to the direction in which they face each other. For example, a driving force can be generated in the second optical axis direction (Z-axis direction), and the lens support 4200 can move in the second optical axis direction (Z-axis direction) by the driving force.

[0179] Since the third driving magnet 4310 can be provided in the lens support portion 4200, it can become a moving member that moves together with the lens support portion 4200, and the third driving coil 4320 can become a fixed member that does not move.

[0180] A third ball component that supports the movement of the lens carrier 4200 can be disposed between the lens carrier 4200 and the housing 1100.

[0181] The third ball component may include three or more guide balls 4600 (4610, 4620, and 4630). In an embodiment, the third ball component may include three guide balls 4610, 4620, and 4630.

[0182] Three guide balls 4610, 4620, and 4630 can be respectively disposed on one side and the other side of the lens support portion 4200. For example, of the three guide balls 4610, 4620, and 4630, two guide balls 4620 and 4630 can support one side of the lens support portion 4200 (preferably, the part closer to the third drive portion), and one guide ball 4610 can support the other side of the lens support portion 4200. One side and the other side of the lens support portion 4200 can be disposed opposite to each other relative to the second optical axis (Z-axis).

[0183] The two guide balls 4620 and 4630, which are disposed on one side of the lens carrier 4200, can be spaced apart in the second optical axis direction (Z-axis direction).

[0184] The lens carrier 4200 and the housing 1100 may each be provided with a plurality of guide grooves, which accommodate different portions of the three guide balls 4610, 4620 and 4630. In an embodiment, the lens carrier 4200 may be provided with a third guide groove 4230, and the housing 1100 may be provided with a fourth guide groove 1130 facing the third guide groove 4230.

[0185] The third guide groove 4230 and the fourth guide groove 1130 can be straight lines with a length in the moving direction of the lens carrier 4200 (i.e., in the second optical axis direction (Z-axis direction)).

[0186] Multiple guide balls 4610, 4620 and 4630 can support the movement of the lens carrier 4200 by rolling in the third guide groove 4230 and the fourth guide groove 1130 in the moving direction of the lens carrier 4200.

[0187] In this embodiment, the number of contact points between at least one of the two guide balls 4620 and 4630 on one side of the lens support 4200 and the guide groove can be greater than the number of contact points between the remaining guide balls 4610 and the guide groove. In this example, at least one of the two guide balls 4620 and 4630 on one side of the lens support 4200 can make contact with two points with the third guide groove 4230 and / or the fourth guide groove 1130. In this example, the cross-section of the third guide groove 4230 and / or the fourth guide groove 1130 can be "V" shaped.

[0188] To prevent the separation of the third ball component, an attractive force can be applied between the lens support portion 4200 and the housing 1100. For this purpose, the fourth magnetic material 4510 and the fifth magnetic material 4520 can be disposed facing each other in the lens support portion 4200 and the housing 1100, respectively.

[0189] In one embodiment, the fourth magnetic material 4510 disposed in the lens support portion 4200 can be a traction magnet, and the fifth magnetic material 4520 disposed in the housing 1100 can be a traction yoke. However, in another embodiment, both the fourth magnetic material 4510 and the fifth magnetic material 4520 can be traction magnets.

[0190] The fourth magnetic material 4510 and the fifth magnetic material 4520 can face each other in the first optical axis direction (X-axis direction) and can generate an attractive force in the direction in which they face each other.

[0191] Due to the attractive force between the fourth magnetic material 4510 and the fifth magnetic material 4520, the lens support 4200 can be supported in the housing 1100 along the first optical axis direction (X-axis direction). Additionally, the third spherical member can remain in contact with both the lens support 4200 and the housing 1100.

[0192] In an implementation, it may be desirable to position the fourth magnetic material 4510 closer to the lens support portion 4200 than the other side of the lens support portion 4200.

[0193] The second lens module 4000 may include a third position sensor 4330 for detecting the position of the lens carrier 4200. In this example, the third position sensor 4330 may be a Hall sensor.

[0194] The third position sensor 4330 can be disposed in the housing 1100 via the main substrate 7000. In the example, the third position sensor 4330 can be disposed inside or outside the third drive coil 4320.

[0195] The third position sensor 4330 can be configured to face the neutral region of the third drive magnet 4310.

[0196] One or more implementation methods can increase driving force and reduce magnetic interference.

[0197] 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 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.

[0198] Therefore, in addition to the disclosure above and in all the accompanying drawings, the scope of this disclosure also includes the claims and their equivalents, that is, all variations within the scope of the claims and their equivalents should be interpreted as being included in this disclosure.

Claims

1. An optical module, characterized in that, include: case; A rotating bracket is disposed within the housing and configured to rotate about a first rotation axis; A reflective bracket on which optical components are mounted, the reflective bracket being supported by the rotating bracket, and the reflective bracket being configured to rotate about a second rotation axis perpendicular to the first rotation axis; A rotating ball is disposed between the housing and the rotating bracket, and forms the first rotating shaft; A first sensing magnet is disposed on the rotating bracket at a position spaced apart from the rotating axis ball in a direction perpendicular to both the first and second rotating axes; and A first position sensor is disposed on the housing at a position spaced apart from the rotating axis ball in a direction perpendicular to both the first and second rotating axes.

2. The optical module according to claim 1, characterized in that, Also includes: A first driving magnet is mounted on the rotating support; as well as A first drive coil is disposed within the housing facing the first drive magnet. The first driving magnet is magnetized such that the surface of the first driving magnet facing the first driving coil includes a first polarity region having a first polarity and a second polarity region having a second polarity different from the first polarity.

3. The optical module according to claim 2, characterized in that, The first sensing magnet is magnetized such that the surface of the first sensing magnet facing the housing includes a first polarity region having a first polarity and a second polarity region having a second polarity different from the first polarity.

4. The optical module according to claim 3, characterized in that, The first driving magnet includes two magnets, and Wherein, one of the two magnets of the first driving magnet is configured such that the first polarity region of the first magnet is adjacent to the first sensing magnet, and the other magnet of the first driving magnet is configured such that the second polarity region of the other magnet is adjacent to the first sensing magnet.

5. The optical module according to claim 4, characterized in that, The first sensing magnet is configured such that the first polarity region of the first sensing magnet is adjacent to the magnet in the two magnets whose first polarity region is adjacent to the first sensing magnet, and the second polarity region of the first sensing magnet is adjacent to the magnet in the two magnets whose second polarity region is adjacent to the first sensing magnet.

6. The optical module according to claim 1, characterized in that, The first position sensor is configured to face the first sensing magnet.

7. The optical module according to claim 6, characterized in that, The first sensing magnet is magnetized such that the surface of the first sensing magnet facing the first position sensor includes a first polarity region and a second polarity region. The neutral region is positioned between the first polar region and the second polar region. The first position sensor is configured to face the neutral region.

8. The optical module according to claim 1, characterized in that, The first position sensor is spaced apart from the first sensing magnet in a direction perpendicular to both the first and second rotation axes.

9. An optical module, characterized in that, include: case; A rotating bracket is disposed within the housing and configured to rotate about a first rotation axis; A reflective bracket on which optical components are mounted, the reflective bracket being supported on the rotating bracket, and the reflective bracket being configured to rotate about a second rotation axis perpendicular to the first rotation axis; Multiple first driving magnets are mounted on the rotating support; as well as A first sensing magnet is disposed between the plurality of first driving magnets and has a gap with the plurality of first driving magnets in the direction of a second rotation axis.

10. The optical module according to claim 9, characterized in that, The plurality of first driving magnets and the first sensing magnet are magnetized such that the surfaces of the plurality of first driving magnets facing the housing and the surfaces of the first sensing magnets facing the housing include a first polarity region having a first polarity and a second polarity region having a second polarity different from the first polarity.

11. The optical module according to claim 10, characterized in that, The plurality of first driving magnets and the first sensing magnet are configured such that the same polarity regions of the first driving magnets and the first sensing magnets are adjacent to each other.

12. The optical module according to claim 10, characterized in that, It also includes a plurality of first drive coils, which are arranged in the housing to face each of the plurality of first drive magnets.

13. The optical module according to claim 10, characterized in that, It also includes a first position sensor, which is disposed in the housing facing the first sensing magnet.

14. The optical module according to claim 10, characterized in that, It also includes a first position sensor, which is arranged in the housing at a distance from the first sensing magnet in a direction perpendicular to both the first and second rotation axes.

15. The optical module according to claim 10, characterized in that, The plurality of first driving magnets are arranged at an angle to each other, such that the distance between the first ends of the plurality of first driving magnets adjacent to the first sensing magnet is closer than the distance between the second ends of the plurality of first driving magnets disposed away from the first sensing magnet.

16. A camera module, characterized in that, include: The optical module according to any one of claims 1 to 8 or any one of claims 9 to 15; as well as A lens module includes one or more lenses disposed in the optical axis direction and configured to move in the optical axis direction.

17. An optical module, characterized in that, include: case; A rotating bracket is disposed within the housing and configured to rotate about a first rotation axis; A reflective bracket on which optical components are mounted, the reflective bracket being supported by the rotating bracket, and the reflective bracket being configured to rotate about a second rotation axis perpendicular to the first rotation axis; A rotating ball is disposed between the housing and the rotating bracket, forming the first rotating shaft; A first sensing magnet is disposed on the rotating bracket at a position spaced apart from the rotating axis ball in a direction perpendicular to both the first and second rotating axes; as well as The driving magnet includes a first driving magnet and a second driving magnet. The first driving magnet, the first sensing magnet, and the second driving magnet are arranged sequentially along an axis perpendicular to the first rotation axis.

Images