Camera module

Abstract

The present disclosure relates to a camera module. The camera module includes a housing, a carrier disposed on the housing and configured to be movable relative to the housing in a first direction, a prism holder disposed on the carrier and configured to be movable relative to the carrier in a second direction perpendicular to the first direction, and a lens module disposed on the prism holder and configured to be movable relative to the prism holder in a third direction perpendicular to the first direction and the second direction.

Description

[0001] Cross-reference to related applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2025-0174282, filed on November 18, 2025, with the Korean Intellectual Property Office, and Korean Patent Application No. 10-2025-0045664, filed on April 8, 2025, the entire disclosure of which is incorporated herein by reference for all purposes. Technical Field

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

[0004] Camera modules can be used in portable electronic devices such as smartphones, tablet PCs, and laptops.

[0005] A camera module in which the optical path can be folded by placing a reflective element in front of the lens module can be used to reduce the size and thickness of portable electronic devices.

[0006] The camera module may include optical image stabilization (hereinafter referred to as OIS) to prevent camera shake during imaging, thereby improving resolution, and this function can be achieved by rotating the reflective element.

[0007] In addition, it can drive the lens module included in the camera module for autofocus (hereinafter referred to as AF).

[0008] However, since the OIS operation of the reflector and the AF operation of the lens module are performed independently, errors may occur during control and the size of the camera module may increase.

[0009] Therefore, a camera module with a structure that can improve the accuracy of OIS and AF drive control while also facilitating miniaturization is needed.

[0010] 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 can be used as prior art with respect to this disclosure. Summary of the Invention

[0011] The summary portion of this invention is intended to provide a brief overview of the chosen concepts, which will be further described in the detailed description portion below. This summary portion 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.

[0012] In one general aspect, the camera module includes a housing, a carrier disposed on the housing and configured to be movable relative to the housing in a first direction, a prism holder disposed on the carrier and configured to be movable relative to the carrier in a second direction perpendicular to the first direction, and a lens module disposed on the prism holder and configured to be movable relative to the prism holder in a third direction perpendicular to the first and second directions.

[0013] The lens module may include a lens barrel and a lens holder, the lens barrel including at least one lens aligned in a third direction, and the lens barrel mounted on the lens holder.

[0014] The housing may include a first guide groove formed on a surface facing a surface of the carrier, wherein the carrier may include a second guide groove facing the first guide groove, and wherein a first ball member may be disposed between the first guide groove and the second guide groove.

[0015] The first guide groove can be configured as a plurality of first guide grooves, and the second guide groove can be configured as a plurality of second guide grooves, and each of the plurality of first guide grooves and the plurality of second guide grooves can have a shape extending in a first direction, and the lengths of the plurality of first guide grooves in the first direction can be different from each other.

[0016] The camera module may also include a first driver configured to move the carrier in a first direction, wherein the first driver may include a first coil disposed in the housing and a first magnet disposed in the carrier to face the first coil.

[0017] Multiple second guide slots can be spaced apart from each other on two sides of a third direction relative to the first magnet on one surface of the carrier, and the number of second guide slots provided on one side relative to the first magnet can be different from the number of second guide slots provided on the other side relative to the first magnet.

[0018] Relative to the first magnet, one side of the carrier may be adjacent to the prism support, and the other side of the carrier may be adjacent to the lens module, and the number of second guide slots provided on one side of the carrier may be greater than the number of second guide slots provided on the other side of the carrier.

[0019] The prism support may include a mounting portion and an extension portion, wherein a reflective element may be provided in the mounting portion, and the extension portion extends from the mounting portion in a third direction and faces the lens module.

[0020] The carrier may include a third guide groove formed on the surface facing the prism holder, the prism holder may include a fourth guide groove facing the third guide groove, and the second ball member may be disposed between the third guide groove and the fourth guide groove.

[0021] The third guide groove can be configured as a plurality of third guide grooves, and the fourth guide groove can be configured as a plurality of fourth guide grooves, and each of the plurality of third guide grooves and the plurality of fourth guide grooves can have a shape extending in the second direction.

[0022] The camera module may also include a second actuator configured to move the prism holder in a second direction. The second actuator may include a second coil disposed in the carrier and a second magnet disposed in the prism holder to face the second coil.

[0023] The second ball component can be configured as multiple second ball components, and multiple fourth guide slots can be spaced apart from each other on both sides of the second magnet in the first direction on one surface of the prism bracket, and the number of second ball components in the fourth guide slots on one side relative to the second magnet can be greater than the number of second ball components in the fourth guide slots on the other side relative to the second magnet.

[0024] The extension may include a fifth guide groove formed on the surface facing the lens module, the lens module may include a sixth guide groove facing the fifth guide groove, and a third ball member may be disposed between the fifth guide groove and the sixth guide groove.

[0025] The fifth guide groove can be configured as a plurality of fifth guide grooves, and the sixth guide groove can be configured as a plurality of sixth guide grooves, and each of the plurality of fifth guide grooves and the plurality of sixth guide grooves can have a shape extending upward in a third direction.

[0026] The camera module may also include a third driver configured to move the lens module upwards in a third direction. The third driver may include a third coil disposed in the extension and a third magnet disposed in the lens module to face the third coil.

[0027] The third ball component can be configured as multiple third ball components, and multiple fifth guide grooves can be disposed on one surface of the extension portion and spaced apart from each other on both sides of the third magnet in the first direction. The number of third ball components disposed in the fifth guide groove on one side of the third magnet can be greater than the number of third ball components disposed in the fifth guide groove on the other side of the third magnet.

[0028] In another general aspect, the camera module includes: a housing; a reflection module disposed in the housing and configured to move in a first direction and a second direction perpendicular to the first direction; and a lens module configured to move together with the reflection module in the first and second directions, and configured to move upward relative to the reflection module in a third direction perpendicular to the first and second directions.

[0029] The camera module may further include: a carrier in which the reflection module is disposed; a plurality of first spherical members disposed between the housing and the carrier and configured to support the carrier; a plurality of second spherical members disposed between the carrier and the reflection module and configured to support the reflection module; and a plurality of third spherical members disposed between the reflection module and the lens module and configured to support the lens module.

[0030] On a cross section passing through multiple first spherical components, the center of gravity of the carrier can be located within a triangle formed by the centers connecting the multiple first spherical components.

[0031] On a cross section passing through multiple second spherical components, the center of gravity of the reflective module can be located within a triangle formed by the centers connecting the multiple second spherical components.

[0032] On a cross section passing through multiple third spherical components, the center of gravity of the lens module can be located within a triangle formed by the centers connecting the multiple third spherical components.

[0033] Other features and aspects will become apparent from the following detailed description and accompanying drawings. Attached Figure Description

[0034] Figure 1 This is a perspective view showing a camera module according to an embodiment of the present disclosure.

[0035] Figure 2 It is shown Figure 1 The image shows a 3D view of the camera module without its housing.

[0036] Figure 3 This is an exploded perspective view showing a camera module according to an embodiment of the present disclosure.

[0037] Figure 4 This is a plan view illustrating the OIS operation in the X-axis direction and the AF operation in the Y-axis direction of a camera module according to an embodiment of the present disclosure.

[0038] Figure 5 It is along Figure 1 The cross-sectional view taken from line I-I' in the diagram.

[0039] Figure 6 This is a diagram illustrating the OIS operation of a camera module in the Z-axis direction according to an embodiment of the present disclosure.

[0040] Figure 7 It is along Figure 1 A three-dimensional view of the cross section taken from line II-II' in the diagram.

[0041] Figure 8 It is along Figure 1 The cross-sectional view taken from line II-II' in the diagram.

[0042] Figure 9 It is along Figure 1 The cross-sectional view taken from line III-III' in the diagram.

[0043] Figure 10 It is along Figure 1 A three-dimensional view of the cross section taken from line IV-IV' in the diagram.

[0044] Figure 11 It is along Figure 1 The cross-sectional view taken from line IV-IV' in the diagram.

[0045] Figure 12 It is along Figure 1 A three-dimensional view of the cross section taken by line V-V' in the diagram.

[0046] Figure 13 It is along Figure 1 The cross-sectional view taken from line V-V' in the diagram.

[0047] Throughout the accompanying drawings and detailed embodiments, unless otherwise described, the same reference numerals refer to the same elements. For purposes of 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

[0048] In the following description, 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.

[0049] 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 become 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, except for operations that must occur in a specific order, as will become apparent upon understanding this disclosure. Furthermore, for clarity and brevity, descriptions of features well-known in the art may be omitted.

[0050] The features described herein may be implemented in different forms and should not be construed as being 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.

[0051] Throughout this specification, when an element such as a layer, region, or substrate is described as being "on," "connected to," or "attached to" another element, the element may be directly "on," directly "connected to," or directly "attached to" the other element, or there may be one or more other elements between the element and the other element. Conversely, when an element is described as being "directly on," "directly connected to," or "directly attached to" another element, there are no other elements between the element and the other element.

[0052] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more items; similarly, “at least one” includes any one of the associated listed items and any combination of any two or more items.

[0053] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited by these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, first part, first region, first layer, or first section mentioned in these examples may also be referred to as a second component, second part, second region, second layer, or second section.

[0054] Spatial relative terms such as “above,” “above,” “below,” and “under” may be used herein for descriptive convenience to describe the relationship of one element relative to another, as shown in the accompanying drawings. In addition to covering the orientation depicted in the drawings, these spatial relative terms are intended to also cover different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “above” another element would be located “below” or “under” that other element. Thus, depending on the spatial orientation of the device, the term “above” covers both orientations of “above” and “below”. 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 should be interpreted accordingly.

[0055] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the terms “a,” “an,” and “the” are intended to include the plural form as well. The terms “comprising,” “including,” and “having” indicate the presence of the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0056] Due to manufacturing techniques and / or tolerances, the shapes shown in the accompanying drawings may vary. 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.

[0057] It should be noted that in this document, the term "may" is used relative to examples, such as regarding what an example may include or implement, meaning that there exists at least one example that includes or implements such a feature, but not all examples are limited to this.

[0058] The features of the examples described herein can be combined in various ways that will become apparent upon understanding this disclosure. Furthermore, although the examples described herein have multiple configurations, other configurations that will become apparent upon understanding this disclosure are also possible.

[0059] One aspect of this disclosure is to improve the accuracy of OIS and AF operation control through a structure in which the lens module can also move during OIS operation of the reflective member.

[0060] One aspect of this disclosure is that the OIS operation of the reflective member can be achieved by linear movement rather than rotation, thereby facilitating alignment with the optical axis of the lens module.

[0061] One aspect of this disclosure is the use of a structure in which the OIS driver and AF driver are disposed on the side surface to reduce the thickness of the camera module.

[0062] This disclosure relates to camera modules, and specifically to camera modules that can be installed on portable electronic devices such as mobile communication terminals, smartphones, or tablet PCs.

[0063] According to an embodiment, the camera module 1000 may include a housing 110, a carrier 400 disposed on the housing 110, a reflection module 300 disposed on the carrier 400, and a lens module 200 disposed on the reflection module 300.

[0064] Through this multi-layer structure, the autofocus (hereinafter referred to as AF) operation of the lens module 200 can be performed in conjunction with the optical image stabilization (hereinafter referred to as OIS) operation of the reflection module 300.

[0065] In other words, when the carrier 400 moves in the first direction (Z-axis direction) for the OIS operation of the reflection module 300, the reflection module 300 and the lens module 200 can also move in the first direction (Z-axis direction).

[0066] Furthermore, when the reflection module 300 moves in the second direction (X-axis direction) for the OIS operation of the reflection module 300, the lens module 200 can also move in the second direction (X-axis direction).

[0067] Here, the OIS operation of the reflection module 300 can be achieved by the approximately linear movement of the reflection module 300 and the carrier 400, rather than by the rotation of the reflection module 300.

[0068] When the lens module 200 moves in the third direction (Y-axis direction) for the purpose of AF operation, only the lens module 200 can move in the third direction (Y-axis direction).

[0069] With this structure, compared to the case where the OIS operation of the reflection module 300 and the AF operation of the lens module 200 are performed independently, the camera module 1000 according to the embodiment can perform faster and more precise OIS and AF control.

[0070] The components and operation of the camera module 1000 according to the embodiment will now be described in more detail with reference to the accompanying drawings. In the embodiment, the first direction may be defined as the Z-axis direction in the drawings, the second direction may be defined as the X-axis direction in the drawings, and the third direction may be defined as the Y-axis direction in the drawings.

[0071] Figure 1 This is a perspective view showing a camera module 1000 according to an embodiment. Figure 2 It is shown Figure 1 The image shows a perspective view of the camera module 1000 without the housing 120. Figure 3 This is an exploded perspective view showing a camera module 1000 according to an embodiment.

[0072] Reference Figure 1 , Figure 2 and Figure 3 According to the embodiment, the camera module 1000 may include a housing 110, an outer shell 120, a lens module 200, a reflection module 300, and a carrier 400. Furthermore, the reflection module 300 may include a reflection member 310 and a prism support 320.

[0073] Furthermore, the camera module 1000 may include a first driver 500 and a second driver 600 responsible for the OIS operation of the reflection module 300, and a third driver 700 responsible for the AF operation of the lens module 200. The first driver 500, the second driver 600, and the third driver 700 may each include a coil and a magnet that interact electromagnetically, thereby precisely moving each component.

[0074] In the camera module 1000 according to this embodiment, the first driver 500, the second driver 600, and the third driver 700 can each be disposed in the side region. Furthermore, support structures between the housing 110 and the carrier 400, between the carrier 400 and the prism support 320, and between the prism support 320 and the lens module 200 can also be disposed in the side region. This structure reduces the thickness of the camera module 1000. However, embodiments are not limited to this, and the support structure can also be disposed in the lower region of the housing 110.

[0075] Housing 110 can serve as a base structure supporting internal components of camera module 1000. Housing 120 can be attached to the upper part of housing 110 and can serve as a cover sealing the interior. Housing 110 and housing 120 can be connected to each other and can form a space protecting sensitive components such as lens module 200 from external impacts or foreign object intrusion. Housing 120 may have an opening OP to allow external light reflected from an object to enter onto reflective member 310. Housing 120 may include a cover glass (cover lens) to seal the opening OP.

[0076] Lens module 200 can be used to focus an image of an object onto an image sensor. Lens module 200 may include a lens barrel 210 and a lens holder 220. Lens barrel 210 may include one or more lenses, and these lenses may be positioned along the optical axis (…). Figure 3 Alignment with the Y-axis. The lens holder 220 can be configured to fix and support the lens barrel 210. For example, the lens barrel 210 can be fixed to the lens holder 220.

[0077] In this embodiment, the lens module 200 can be configured to move relative to the prism holder 320 in a third direction (Y-axis direction) perpendicular to the first direction (Z-axis direction) and the second direction (X-axis direction). The lens module 200 can perform autofocus (AF) operation by moving in the third direction (Y-axis direction) by receiving a driving force from the third driver 700.

[0078] In an embodiment, the reflection module 300 may include a reflection member 310 and a prism bracket 320 supporting the reflection member 310. For example, the reflection member 310 may be disposed on the prism bracket 320.

[0079] The reflective member 310 can be configured as an optical device that reflects or refracts the path of externally incident light. For example, the reflective member 310 can be implemented as a prism, a mirror, or a lens. However, its embodiments are not limited to these. By folding the optical path with the reflective member 310, the overall thickness of the camera module 1000 can be reduced.

[0080] The prism holder 320 can be configured to stably fix and support the reflecting member 310. The prism holder 320 may include a mounting portion 321, an extension portion 322, and a support portion 323. The mounting portion 321 provides space for the reflecting member 310 to be placed. The extension portion 322 may extend from the mounting portion 321 in a third direction (Y-axis direction) and may face the lens module 200. The extension portion 322 may include a guide structure for movement of the lens module 200, and the third magnet 710 of the third actuator 700 may be disposed in the extension portion 322. The extension portion 322 may be formed by extending one side of the prism holder 320, and the prism holder 320 may have an asymmetrical shape. (See reference...) Figure 3 A support portion 323 for more stable support can be provided at the end of the extension portion 322. The support portion 323 can provide auxiliary support between the bottom surface of the housing 110 and the prism bracket 320.

[0081] The carrier 400 can support the prism holder 320 and can be a movable body configured to move relative to the housing 110. The carrier 400 can be configured to move relative to the housing 110 in a first direction (Z-axis direction).

[0082] The prism holder 320 can be supported by the carrier 400 and can be configured to move relative to the carrier 400 in a second direction (X-axis direction) perpendicular to the first direction (Z-axis direction).

[0083] Compared to optical image stabilization (OIS) based on the rotation of the reflection module 300, optical image stabilization (OIS) can be achieved through the linear movement of the carrier 400 and the prism support 320, making it easier to perform optical axis alignment and other controls.

[0084] The camera module 1000 may include a first ball member B1 disposed between the housing 110 and the carrier 400. Multiple first ball members B1 may be provided. The housing 110 may include multiple first guide grooves G1 formed on a surface facing one surface of the carrier 400. The carrier 400 may include multiple second guide grooves G2 facing the first guide grooves G1. The first ball member B1 may be disposed between the first guide grooves G1 and the second guide grooves G2, and may guide the carrier 400 to move smoothly in a first direction.

[0085] Each of the first guide groove G1 and the second guide groove G2 may have a shape extending in the first direction. The lengths of the plurality of first guide grooves G1 in the first direction may differ from each other, as will be referred to later. Figure 9 To describe in more detail.

[0086] In an embodiment, a plurality of second guide grooves G2 may be spaced apart from each other on two sides of a surface of the carrier 400 relative to the first magnet 510 in a third-direction orientation. The number of second guide grooves G2 disposed on one side of the surface relative to the first magnet 510 may differ from the number of second guide grooves G2 disposed on the other side of the surface relative to the first magnet 510. For example, one side of the carrier 400 may be adjacent to the prism support 320 relative to the first magnet 510, and the other side of the carrier 400 may be adjacent to the lens module 200. The number of second guide grooves G2 disposed on one side of the carrier 400 may be greater than the number of second guide grooves G2 disposed on the other side of the carrier 400. For example, as Figure 3 As shown, two second guide grooves G2 can be formed on one side of the carrier 400, and one second guide groove G2 can be formed on the other side, but the embodiments are not limited thereto.

[0087] The first actuator 500 can be configured to move the carrier 400 in a first direction (Z-axis direction). The first actuator 500 may include a first coil 520 disposed in the housing 110 and a first magnet 510 disposed in the carrier 400 facing the first coil 520. When current is applied to the first coil 520, the carrier 400 can move in the first direction (Z-axis direction) through the electromagnetic interaction between the first coil 520 and the first magnet 510. A first yoke 530 can form a magnetic field around the first magnet 510 and the first coil 520, thereby improving driving efficiency.

[0088] The camera module 1000 may include a second spherical member B2 disposed between the carrier 400 and the prism support 320. Multiple second spherical members B2 may be provided. The carrier 400 may include multiple third guide grooves G3 formed on a surface facing the prism support 320. The prism support 320 may include multiple fourth guide grooves G4 facing the third guide grooves G3. The second spherical member B2 may be disposed between the third guide grooves G3 and the fourth guide grooves G4, and may guide the prism support 320 to move linearly in a second direction.

[0089] Each of the third guide groove G3 and the fourth guide groove G4 may have a shape extending in the second direction. In an embodiment, the plurality of fourth guide grooves G4 may be spaced apart from each other on both sides of the second magnet 610 in the first direction (Z-axis direction) on one surface of the prism support 320. The number of second ball members B2 in the fourth guide groove G4 disposed on one side of the second magnet 610 may be greater than the number of second ball members B2 disposed in the fourth guide groove G4 disposed on the other side of the second magnet 610.

[0090] The second actuator 600 can be configured to move the prism holder 320 in a second direction (X-axis direction). The second actuator 600 may include a second coil 620 disposed in the carrier 400 and a second magnet 610 disposed in the prism holder 320 facing the second coil 620. By controlling the current applied to the second coil 620, the prism holder 320 can move in the second direction (X-axis direction). A second yoke 630 can form a magnetic field around the second magnet 610 and the second coil 620, thereby improving driving efficiency.

[0091] The camera module 1000 may include a third spherical member B3 disposed between the prism support 320 and the lens module 200. Multiple third spherical members B3 may be provided. An extension 322 of the prism support 320 may include multiple fifth guide grooves G5 formed on a surface facing the lens module 200. The lens module 200 may include multiple sixth guide grooves G6 facing the multiple fifth guide grooves G5. The third spherical member B3 may be disposed between the fifth guide grooves G5 and the sixth guide grooves G6 and may support the lens module 200 for precise movement in a third direction (Y-axis direction). Each of the fifth guide grooves G5 and the sixth guide grooves G6 may have a shape extending in a third direction.

[0092] In one embodiment, a plurality of fifth guide grooves G5 may be spaced apart from each other on one surface of the extension portion 322 relative to the third magnet 710 on both sides in the first direction (Z-axis direction). The number of third ball members B3 in the fifth guide grooves G5 disposed on one side may be greater than the number of third ball members B3 in the fifth guide grooves G5 disposed on the other side, relative to the third magnet 710.

[0093] The third actuator 700 can be configured to move the lens module 200 in a third direction (Y-axis direction). The third actuator 700 may include a third coil 720 disposed in an extension 322 of the prism holder 320, and a third magnet 710 disposed in the lens module 200 facing the third coil 720. When current is applied to the third coil 720, an electromagnetic force can be generated. By the generated electromagnetic force, the lens module 200 can move in a third direction (Y-axis direction), thereby performing autofocus (AF). The third yoke 730 can form a magnetic circuit and can improve the driving efficiency of the third actuator 700.

[0094] In this embodiment, the prism bracket 320 supporting the reflective member 310 and the lens module 200 can be jointly supported by the carrier 400. That is, when the carrier 400 moves in the first direction (Z-axis direction), the prism bracket 320 and the lens module 200 can move together in the first direction (Z-axis direction). Furthermore, when the prism bracket 320 moves relative to the carrier 400 in the second direction (X-axis direction), the lens module 200 can move together with the prism bracket 320 in the second direction (X-axis direction). Therefore, when optical image stabilization (OIS) is performed, the lens module 200 can move together with the reflective member 310, thereby ensuring the stability of the optical axis alignment and improving control accuracy.

[0095] Figure 4 This is a plan view illustrating the OIS operation in the X-axis direction and the AF operation in the Y-axis direction of the camera module 1000 according to an embodiment. Figure 5 It is along Figure 1 The cross-sectional view taken from line I-I' in the diagram.

[0096] Reference Figure 4 and Figure 5 The camera module 1000 may include a housing 110, a carrier 400, a prism support 320, and a lens module 200.

[0097] The housing 110 may house the carrier 400. The carrier 400 may be supported by the housing 110 and may be configured to be movable relative to the housing 110 in a first direction (Z-axis direction). The housing 110 may include a first guide groove G1 formed on a surface facing one surface of the carrier 400. The carrier 400 may include a second guide groove G2 facing the first guide groove G1. A first ball member B1 may be disposed between the first guide groove G1 and the second guide groove G2. The first ball member B1 may guide linear movement of the carrier 400.

[0098] The camera module 1000 may include a first driver 500 that moves a carrier 400 in a first direction (Z-axis direction). The first driver 500 may include a first coil 520 disposed in a housing 110. The first driver 500 may also include a first magnet 510 disposed in the carrier 400 facing the first coil 520. When current is applied to the first coil 520, the carrier 400 can be driven in the first direction (Z-axis direction) by the electromagnetic interaction between the first coil 520 and the first magnet 510. By moving the carrier 400 as described above, optical image stabilization (OIS) in the Z-axis direction can be achieved.

[0099] Reference Figure 5 The second guide groove G2 can be configured as multiple second guide grooves G2, and the multiple second guide grooves G2 can be spaced apart from each other on both sides of the first magnet 510 in a third direction (Y-axis) on one surface of the carrier 400. The number of second guide grooves G2 provided on one side relative to the first magnet 510 can be different from the number of second guide grooves G2 provided on the other side relative to the first magnet 510.

[0100] For example, one side of the carrier 400 may be adjacent to the prism support 320 relative to the first magnet 510, and the other side of the carrier 400 may be adjacent to the lens module 200. The number of second guide grooves G2 provided on this side of the carrier 400 can be greater than the number of second guide grooves G2 provided on the other side of the carrier 400. Therefore, by providing a greater number of second guide grooves G2 and first ball members B1 on the side of the prism support 320 supporting the relatively heavy reflective member 310, stable support and operation can be performed while taking into account the center of gravity of the carrier 400.

[0101] The first ball member B1, located on one side of the carrier 400, can make contact at four points between the first guide groove G1 and the second guide groove G2. Furthermore, the first ball member B1, located on the other side of the carrier 400, can make contact at three points between the first guide groove G1 and the second guide groove G2. This structure prevents the first ball member B1 from getting stuck or jammed during operation.

[0102] The prism holder 320 can be supported by the carrier 400. The prism holder 320 can be configured to move relative to the carrier 400 in a second direction (X-axis direction) perpendicular to the first direction (Z-axis direction).

[0103] The prism holder 320 may include a mounting portion 321 in which a reflecting member 310 is disposed. The prism holder 320 may also include an extension portion 322 extending from the mounting portion 321 in a third direction (Y-axis direction) and facing the lens module 200. The prism holder 320 may be supported by a plurality of second spherical members B2 disposed between the carrier 400 and the prism holder 320. The prism holder 320 may be linearly movable in a second direction (X-axis direction) via the second spherical members B2.

[0104] The camera module 1000 may include a second driver 600 that moves the prism holder 320 in a second direction (X-axis direction). The second driver 600 may include a second coil 620 disposed in the carrier 400. Furthermore, the second driver 600 may also include a second magnet 610 disposed in the prism holder 320 facing the second coil 620. By controlling the current applied to the second coil 620, the prism holder 320 can be moved in the second direction (X-axis direction). The movement of the prism holder 320 can perform optical image stabilization (OIS) operation in conjunction with the movement of the carrier 400. That is, shake in the second direction (X-axis direction) can be corrected by the linear movement of the prism holder 320.

[0105] The lens module 200 can be supported by the prism bracket 320. Specifically, the lens module 200 can be supported by an extension 322 of the prism bracket 320. The lens module 200 can be configured to be movable relative to the prism bracket 320 in a third direction (Y-axis direction) perpendicular to the first direction (Z-axis direction) and the second direction (X-axis direction).

[0106] Lens module 200 may include a lens barrel 210. Lens barrel 210 may include at least one lens aligned in a third direction (Y-axis direction). Furthermore, lens module 200 may include a lens holder 220 on which the lens barrel 210 is mounted. Lens module 200 may be supported by a plurality of third spherical members B3 disposed between an extension 322 of prism holder 320 and lens holder 220. Lens module 200 may be linearly movable in a third direction (Y-axis direction) via the third spherical members B3.

[0107] The camera module 1000 may include a third driver 700 for moving the lens module 200 in a third direction (Y-axis direction). The third driver 700 may include a third coil 720 disposed in an extension 322 of the prism holder 320. Furthermore, the third driver 700 may also include a third magnet 710 disposed in the lens holder 220 of the lens module 200 facing the third coil 720. When current is applied to the third coil 720, an electromagnetic force is generated. By the generated electromagnetic force, the lens module 200 can move in a third direction (Y-axis direction) and perform autofocus (AF) operation. When optical image stabilization (OIS) operation is performed, the carrier 400 and the prism holder 320 can move, and in this case, the lens module 200 can also move along with them, which improves the control accuracy of the autofocus (AF) operation. In other words, since the optical image stabilization (OIS) operation of the reflection module 300 is performed simultaneously with the autofocus (AF) operation of the lens module 200, the control accuracy is improved compared to when they operate separately.

[0108] Figure 6 This is a diagram illustrating the OIS operation of the camera module 1000 in the Z-axis direction according to an embodiment. Figure 7 It is along Figure 1 A three-dimensional view of the cross section taken from line II-II' in the diagram. Figure 8 It is along Figure 1 The cross-sectional view taken from line II-II' in the diagram. Figure 9 It is along Figure 1 The cross-sectional view taken from line III-III' in the diagram.

[0109] Reference Figure 6 , Figure 7 , Figure 8 and Figure 9 Together with Figure 4 The camera module 1000 may include a structure for optical image stabilization (OIS) in a first direction (Z-axis direction).

[0110] The carrier 400 can be supported by the housing 110 and can be configured to move relative to the housing 110 in a first direction (Z-axis direction).

[0111] The movement of the carrier 400 in the first direction (Z-axis direction) can be controlled by the first actuator 500. The first actuator 500 may include a first coil 520 disposed on the housing 110 and a first magnet 510 disposed on the carrier 400 facing the first coil 520. When current is applied to the first coil 520, the carrier 400 can be driven by a driving force in the first direction through the electromagnetic interaction between the magnetic field generated in the first coil 520 and the magnetic field of the first magnet 510. For example, the Lorentz force can act as a driving force. A first yoke 530 may be disposed on the outside of the first coil 520. The first yoke 530 can form a magnetic circuit, thereby improving the driving efficiency.

[0112] To ensure stable linear movement of the carrier 400, a plurality of first ball members B1 can be provided between the housing 110 and the carrier 400. The housing 110 may include a first guide groove G1 formed on a surface facing one surface of the carrier 400. The carrier 400 may include a second guide groove G2 facing the first guide groove G1. The first ball members B1 may be disposed between the first guide groove G1 and the second guide groove G2. The first ball members B1 can reduce friction between the carrier 400 and the housing 110 by rolling. Therefore, the carrier 400 can move smoothly.

[0113] The first spherical component B1 may include multiple units. For example, refer to... Figure 9 The first ball component B1 may include three first ball components B1-1, B1-2 and B1-3 respectively disposed in three first guide grooves G1-1, G1-2 and G1-3.

[0114] Reference Figure 8 In a cross-section passing through multiple first spherical components B1, the center of gravity CM1 of the carrier 400 can be located within an imaginary triangle connecting the centers of the multiple first spherical components B1. This arrangement prevents the carrier 400 from tilting or swaying in a specific direction during movement. Therefore, stable linear movement can be ensured.

[0115] In this embodiment, the first ball component B1 may be formed of a material with high hardness and wear resistance. For example, the first ball component B1 may be made of ceramic or plastic resin. However, the embodiments are not limited to this.

[0116] The first guide groove G1 and the second guide groove G2 can be configured to guide the movement path of the first ball member B1. The first guide groove G1 can be formed on the surface of the housing 110 facing the carrier 400. The second guide groove G2 can be formed on the surface of the carrier 400 facing the housing 110. Multiple first guide grooves G1 and multiple second guide grooves G2 can be provided. The first guide groove G1 and the second guide groove G2 can have a shape extending in a first direction (Z-axis direction), which is the movement direction of the carrier 400.

[0117] Reference Figure 9 Multiple first guide grooves G1 can be provided. For example, the first guide grooves G1 may include three first guide grooves G1-1, G1-2, and G1-3 spaced apart from each other. The lengths of the multiple first guide grooves G1 in the first direction (Z-axis direction) can be different. For example, the length h1 of the first guide groove G1-1 and the length h2 of the first guide groove G1-2 can be different from the length h3 of the first guide groove G1-3. This difference in length can limit the maximum range of movement of the carrier 400, or can provide stable support at specific locations.

[0118] Reference Figure 8 Multiple second guide grooves G2 can be spaced apart from each other on both sides of a surface of the carrier 400 relative to the first magnet 510 in a third direction (Y-axis direction). The number of second guide grooves G2 provided on one side relative to the first magnet 510 can be different from the number of second guide grooves G2 provided on the other side relative to the first magnet 510. For example, as Figure 8 As shown, two second guide slots G2 can be disposed on the left side of the first magnet 510, and one second guide slot G2 can be disposed on the right side of the first magnet 510. This asymmetrical arrangement takes into account the weight distribution of the carrier 400 and other components mounted on the carrier 400. Therefore, the overall weight can be balanced and the torque that may be generated during operation can be counteracted.

[0119] Figure 10 It is along Figure 1 A three-dimensional view of the cross section taken from line IV-IV' in the diagram. Figure 11 It is along Figure 1 The cross-sectional view taken from line IV-IV' in the diagram.

[0120] Reference Figure 10 and Figure 11 The prism bracket 320 can be configured to move relative to the carrier 400 in a second direction (X-axis direction). The prism bracket 320 can be configured to support the reflective member 310. By moving the prism bracket 320 in the second direction (X-axis direction), optical image stabilization (OIS) function in the second direction (X-axis direction) of the camera module 1000 can be realized.

[0121] The carrier 400 may include a third guide groove G3 on its surface facing the prism holder 320. The prism holder 320 may include a fourth guide groove G4 at the location of the third guide groove G3 facing the carrier 400. The third guide groove G3 and the fourth guide groove G4 may have a shape that extends in a second direction (X-axis direction). Multiple third guide grooves G3 and multiple fourth guide grooves G4 may be formed.

[0122] The second ball component B2 can be disposed between the third guide groove G3 of the carrier 400 and the fourth guide groove G4 of the prism support 320. The second ball component B2 can roll. The rolling of the second ball component B2 can guide the prism support 320 to move precisely relative to the carrier 400 with low friction. Multiple second ball components B2 can be provided. Multiple second ball components B2 can support the prism support 320 to maintain a stable posture during movement.

[0123] Reference Figure 11 In a cross-section passing through the multiple second spherical components B2, the center of gravity CM2 of the reflective module 300 can be located within an imaginary triangle formed by connecting the centers of the multiple second spherical components B2 with imaginary lines. This arrangement of the center of gravity CM2 can reduce the torque that may be generated when the reflective module 300 is driven in the second direction (X-axis direction). Therefore, the operational stability of the reflective module 300 can be improved. In addition, the power consumption required for operation can be reduced.

[0124] The fourth guide groove G4 can be spaced apart from each other on both sides of the second magnet 610 in the first direction (Z-axis direction) on one surface of the prism support 320. The number of second ball members B2 in the fourth guide groove G4 on one side can be greater than the number of second ball members B2 in the fourth guide groove G4 on the other side, relative to the second magnet 610. For example, as... Figure 11 As shown, two second ball members B2 can be disposed on the upper side, and one second ball member B2 can be disposed on the lower side, thereby forming a three-point support structure. In an embodiment, the number of second ball members B2 disposed in the fourth guide groove G4 on one side relative to the second magnet 610 can be two, and the number of second ball members B2 disposed in the fourth guide groove G4 on the other side relative to the second magnet 610 can be one.

[0125] In this embodiment, the second ball component B2 may be formed of a material with high hardness and wear resistance. For example, the second ball component B2 may be made of ceramic or plastic resin. However, the embodiments are not limited thereto.

[0126] In one embodiment, a second actuator 600 may be provided to move the prism holder 320 in a second direction (X-axis direction). The second actuator 600 may include a second magnet 610 and a second coil 620. The second actuator 600 may generate a driving force on the prism holder 320 using electromagnetic force. The second actuator 600 may control the movement of the prism holder 320 in the second direction (X-axis direction).

[0127] The second coil 620 can be disposed in the carrier 400. The second magnet 610 can be disposed in the prism support 320. The second magnet 610 can be positioned facing the second coil 620. When current is applied to the second coil 620, the second coil 620 and the second magnet 610 will generate an electromagnetic interaction according to Fleming's left-hand rule. Due to this electromagnetic interaction, the prism support 320 can be subjected to a force that moves in a second direction (X-axis direction).

[0128] In an embodiment, the second driver 600 may further include a second yoke 630. The second yoke 630 may be disposed outside the second coil 620 relative to the second magnet 610 and may form a magnetic circuit. The second yoke 630 may concentrate the magnetic field generated by the second magnet 610. The second yoke 630 may reduce leakage flux. The second yoke 630 may improve the driving efficiency of the second driver 600.

[0129] Figure 12 It is along Figure 1 A three-dimensional view of the cross section taken by line V-V' in the diagram. Figure 13 It is along Figure 1 The cross-sectional view taken from line V-V' in the diagram.

[0130] Reference Figure 12 and Figure 13 The lens holder 220 can be supported by an extension 322 of the prism holder 320. The lens holder 220 can be configured to be movable in a third direction (Y-axis direction).

[0131] The lens holder 220 may include a sixth guide groove G6 on the surface facing the extension 322 of the prism holder 320. The sixth guide groove G6 may guide the movement of the lens holder 220 in a third direction (Y-axis direction). A plurality of sixth guide grooves G6 may be formed. Each of the plurality of sixth guide grooves G6 may have a shape extending in a third direction (Y-axis direction).

[0132] In one embodiment, the extension 322 of the prism holder 320 may include a fifth guide groove G5 formed on the surface facing the lens module 200. Multiple fifth guide grooves G5 may be provided. The fifth guide groove G5 may have a shape extending in a third direction (Y-axis direction).

[0133] The third ball component B3 can be disposed between the lens holder 220 and the prism holder 320. The third ball component B3 can be used to smoothly guide the linear movement of the lens holder 220. The third ball component B3 can reduce friction through rolling contact, thereby enabling precise autofocus (AF) operation.

[0134] The third ball member B3 can be disposed between the fifth guide groove G5 formed in the extension 322 of the prism support 320 and the sixth guide groove G6 formed in the lens support 220. The lens support 220 can be stably supported by a plurality of third ball members B3. When the lens support 220 moves under the driving force of the third actuator 700, the third ball member B3 can roll along the sixth guide groove G6. The third ball member B3 can realize the movement of the lens support 220 in the third direction (Y-axis direction).

[0135] In this embodiment, multiple third spherical components B3 may be provided. For example, the third spherical components B3 may be formed of ceramic or plastic resin materials. However, the embodiments are not limited thereto.

[0136] Reference Figure 12 and Figure 13 Together with Figure 3 The fifth guide groove G5 can be disposed on one surface of the extension portion 322, spaced apart from each other on both sides of the third magnet 710 in the first direction (Z-axis direction). The number of third ball members B3 in the fifth guide groove G5 disposed on one side (upper side) of the third magnet 710 can be greater than the number of third ball members B3 disposed on the other side (lower side) of the fifth guide groove G5 disposed on the other side (lower side) of the third magnet 710.

[0137] The center of gravity CM3 of the lens module 200 can represent the center of mass of the lens module 200. The position of the center of gravity CM3 can be considered for stable operation of the lens module 200. The arrangement of the center of gravity CM3 can help suppress tilting or shaking that occurs during operation.

[0138] Figure 13 A cross-section passing through the plurality of third spherical members B3 is shown. The center of gravity CM3 of the lens module 200 can be located within an imaginary triangle formed by connecting the centers of the plurality of third spherical members B3 with imaginary lines. This arrangement prevents torque when the lens module 200 moves in the Y-axis direction. Therefore, stable linear movement of the lens module 200 can be ensured.

[0139] Because the center of gravity CM3 of the lens module 200 is located within the triangle formed by the third spherical member B3, which serves as a support point, the lens module 200 can maintain a stable position even under external impact or rapid acceleration and deceleration, which improves the accuracy and responsiveness of autofocus (AF) operation. Therefore, the camera module 1000 can ensure high-quality imaging performance.

[0140] According to the above embodiments, in the camera module, the lens module can move together with the reflective component during OIS operation, thereby improving the accuracy of OIS and AF operation control.

[0141] Furthermore, in the camera module, OIS can be achieved by linearly moving the reflective components in two directions perpendicular to each other, making it easy to perform optical axis alignment during OIS and AF operations.

[0142] Furthermore, since the OIS driver and AF driver are located on the side surface, the thickness of the camera module can be reduced.

[0143] 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 understood in a descriptive sense only and not for limiting purposes. The description of features or aspects in each example should be considered applicable to similar features or aspects in other examples. Suitable results may still be achieved 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 different ways 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 should be understood to be included in this disclosure.

Claims

1. Camera module, including: case; A carrier is disposed on the housing and configured to be movable relative to the housing in a first direction; A prism holder is disposed on the carrier and configured to be movable relative to the carrier in a second direction perpendicular to the first direction; as well as A lens module is disposed on the prism bracket and configured to be movable upward relative to the prism bracket in a third direction perpendicular to the first direction and the second direction.

2. The camera module according to claim 1, wherein, The lens module includes a lens barrel and a lens holder. The lens barrel includes at least one lens aligned in the third direction, and the lens barrel is mounted on the lens holder.

3. The camera module according to claim 1, in, The housing includes a first guide groove formed on a surface facing one surface of the carrier. The carrier includes a second guide groove facing the first guide groove, and The first ball component is disposed between the first guide groove and the second guide groove.

4. The camera module according to claim 3, in, The first guide groove is configured as a plurality of first guide grooves, and the second guide groove is configured as a plurality of second guide grooves, wherein each of the plurality of first guide grooves and the plurality of second guide grooves has a shape extending in the first direction, and The lengths of the plurality of first guide grooves are different from each other in the first direction.

5. The camera module of claim 4, further comprising a first driver configured to move the carrier in the first direction. in, The first driver includes a first coil disposed in the housing and a first magnet disposed in the carrier to face the first coil.

6. The camera module according to claim 5, in, The plurality of second guide grooves are spaced apart from each other on the one surface of the carrier relative to the first magnet on both sides in the third direction, and The number of second guide slots provided on one side relative to the first magnet is different from the number of second guide slots provided on the other side relative to the first magnet.

7. The camera module according to claim 6, in, Relative to the first magnet, one side of the carrier is adjacent to the prism holder, and the other side of the carrier is adjacent to the lens module. The number of second guide grooves disposed on one side of the carrier is greater than the number of second guide grooves disposed on the other side of the carrier.

8. The camera module according to claim 1, wherein, The prism support includes a mounting portion and an extension portion, wherein a reflective member is disposed in the mounting portion, and the extension portion extends from the mounting portion in the third direction and faces the lens module.

9. The camera module according to claim 8, in, The carrier includes a third guide groove formed on the surface facing the prism holder. The prism support includes a fourth guide groove facing the third guide groove, and The second ball component is disposed between the third guide groove and the fourth guide groove.

10. The camera module according to claim 9, wherein, The third guide groove is configured as a plurality of third guide grooves, and the fourth guide groove is configured as a plurality of fourth guide grooves, and each of the plurality of third guide grooves and the plurality of fourth guide grooves has a shape extending in the second direction.

11. The camera module of claim 10, further comprising a second driver configured to move the prism holder in the second direction. in, The second driver includes a second coil disposed in the carrier and a second magnet disposed in the prism holder to face the second coil.

12. The camera module according to claim 11, in, The second spherical component is configured as a plurality of second spherical components. The plurality of fourth guide slots are spaced apart from each other on one surface of the prism bracket relative to the second magnet on both sides in the first direction. The number of second ball members disposed in the fourth guide groove on one side relative to the second magnet is greater than the number of second ball members disposed in the fourth guide groove on the other side relative to the second magnet.

13. The camera module according to claim 8, in, The extension includes a fifth guide groove formed on the surface facing the lens module. The lens module includes a sixth guide groove facing the fifth guide groove, and The third ball component is disposed between the fifth guide groove and the sixth guide groove.

14. The camera module according to claim 13, wherein, The fifth guide groove is configured as a plurality of fifth guide grooves, and the sixth guide groove is configured as a plurality of sixth guide grooves, and each of the plurality of fifth guide grooves and the plurality of sixth guide grooves has a shape that extends upward in the third party.

15. The camera module according to claim 14, further comprising: A third driver is configured to move the lens module upwards on the third party. The third driver includes a third coil disposed in the extension portion and a third magnet disposed in the lens module to face the third coil.

16. The camera module according to claim 15, in, The third spherical component is configured as multiple third spherical components. The plurality of fifth guide grooves are disposed on one surface of the extension portion and are spaced apart from each other on both sides of the third magnet in the first direction. The number of third ball components disposed in the fifth guide groove on one side relative to the third magnet is greater than the number of third ball components disposed in the fifth guide groove on the other side relative to the third magnet.

17. A camera module, including: case; A reflection module is disposed in the housing and configured to be movable in a first direction and a second direction perpendicular to the first direction; as well as The lens module is configured to move together with the reflection module in the first direction and the second direction, and is configured to move upward relative to the reflection module in a third direction perpendicular to the first direction and the second direction.

18. The camera module of claim 17, further comprising: The carrier, wherein the reflective module is disposed in the carrier; A plurality of first spherical components are disposed between the housing and the carrier and configured to support the carrier; Multiple second spherical components are disposed between the carrier and the reflective module and configured to support the reflective module; as well as Multiple third spherical components are disposed between the reflection module and the lens module and configured to support the lens module. In the cross-section passing through the plurality of first spherical components, the center of gravity of the carrier is located within a triangle formed by the centers connecting the plurality of first spherical components.

19. The camera module according to claim 18, wherein, On a cross-section passing through the plurality of second spherical components, the center of gravity of the reflective module lies within a triangle formed by the centers connecting the plurality of second spherical components.

20. The camera module according to claim 18, wherein, On a cross-section passing through the plurality of third spherical components, the center of gravity of the lens module lies within a triangle formed by the centers connecting the plurality of third spherical components.

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