Camera module

Abstract

A camera module is provided. The camera module includes a housing, a carrier disposed in the housing and configured to move in a first direction, an image sensor movably disposed in the carrier and having an imaging face oriented in the first direction, and an autofocus driver including an autofocus actuator configured to move the carrier relative to the housing in the first direction and a ball member disposed between the carrier and the housing.

Description

[0001] Cross-reference to related applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2021-0159647, filed on November 18, 2021, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes. Technical Field

[0003] The following description relates to a sensor shifting module and a camera module that includes the sensor shifting module. Background Technology

[0004] With the development of communication technology, mobile devices such as, but not limited to, smartphones have become widely used, and therefore, the demand for additional features in cameras included in mobile devices has also increased. For example, cameras included in mobile devices can provide advanced imaging functions (e.g., autofocus, image stabilization, etc.) that are available in standard digital SLR (DSLR) cameras, despite their small size.

[0005] Optical image stabilization (OIS) prevents image blur when the camera shakes during exposure time, and is often necessary when imaging in low-light environments with long exposure times and camera shake. OIS can include digital IS (DIS), electronic IS (EIS), and optical IS (OIS). Of these, optical IS (OIS) fundamentally prevents image degradation caused by camera shake by correcting the optical path by moving a lens or image sensor in a direction orthogonal to the optical axis. Because mechanical actuators are required, implementing it as a device can be complex, and while excellent compensation performance can be achieved, the associated costs are high.

[0006] Because the lens barrel contains the optical system, a relatively large amount of force may be required to drive it. However, due to the relatively light weight of the image sensor, excellent optical image stabilization (OIS) can be advantageously achieved even with relatively small forces.

[0007] Cameras implemented in mobile devices can primarily provide image correction, which only prevents shake in directions orthogonal to the optical axis when acquiring an image. Recently, mobile devices have been used to acquire video, and therefore, it is necessary to move the image sensor in more diverse directions to correct for shake in more dynamic environments. Summary of the Invention

[0008] This Summary is intended to introduce the selection of concepts, which are further described below in the of the Invention. This Summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to limit the scope of the claimed subject matter in any way.

[0009] In general aspects, a camera module includes a housing, a carrier disposed in the housing and configured to move in a first direction, an image sensor movably disposed in the carrier, and an auto focus driver including an auto focus actuator configured to move the carrier in the first direction relative to the housing and a ball member disposed between the carrier and the housing.

[0010] The image sensor can have an imaging surface oriented in the first direction.

[0011] The auto focus actuator can include an auto focus coil disposed on a first side of the carrier and coupled to one of the housing and the carrier, and an auto focus magnet coupled to the other of the housing and the carrier and opposite the auto focus coil in a direction orthogonal to the first direction.

[0012] The camera module can include a magnetic yoke disposed on a side of the auto focus coil.

[0013] The auto focus actuator can include an auto focus coil disposed below the carrier and coupled to one of the housing and the carrier, and an auto focus magnet coupled to the other of the housing and the carrier and opposite the auto focus coil in the first direction.

[0014] The camera module can include a first elastic member disposed between the carrier and the housing, wherein the ball member can be disposed on a first side of the carrier and the first elastic member is disposed on a second side of the carrier and configured to urge the carrier toward the ball member.

[0015] The camera module can include a second elastic member disposed between a lower portion of the carrier and the housing and configured to support the carrier in the first direction.

[0016] The camera module can include a first movable body movably disposed in the support portion, a second movable body movably disposed in the first movable body and coupled to the image sensor, a first driver configured to move the second movable body in a direction orthogonal to the first direction with respect to the first movable body, a second driver configured to rotate the second movable body with respect to the first movable body about an axis parallel to the first direction, and a third driver configured to rotate the first movable body with respect to the support portion about an axis orthogonal to the first direction, wherein the third driver is disposed between the support portion and the first movable body and provides a tilt center of the first movable body with respect to the support portion.

[0017] The first driver can include a first actuator disposed between the first movable body and the second movable body, and the first actuator can include a first driving magnet disposed on the second movable body and a first driving coil disposed on the first movable body to be opposite the first driving magnet in a direction orthogonal to the first direction.

[0018] The second driver can include a second actuator disposed between the first movable body and the second movable body, and the second actuator can include a second driving magnet disposed on the second movable body and a second driving coil disposed on the first movable body to be opposite the second driving magnet in a direction orthogonal to the first direction.

[0019] The second movable body can include four side surfaces forming a quadrilateral shape, and the first driving magnet and the second driving magnet are disposed on different side surfaces among the four side surfaces.

[0020] The second movable body can include first and second side surfaces forming a corner, and the second driving magnet is disposed on one of the first and second side surfaces and disposed adjacent to the corner.

[0021] The third driver can include a third actuator disposed between the first movable body and the support portion, and the third actuator can include a third driving magnet disposed on the second movable body and a third driving coil disposed on the support portion to be opposite the third driving magnet in the first direction.

[0022] The third driving magnet can be one of the first driving magnet and the second driving magnet.

[0023] The camera module can include a substrate mechanically connecting the second movable body to the first movable body and deformed based on movement of the second movable body with respect to the first movable body.

[0024] The substrate can include an electric wire electrically connected to the image sensor.

[0025] The substrate can include a movable portion fixedly coupled to the second movable body, a fixed portion fixedly coupled to the first movable body, and a support portion interconnecting the movable portion and the fixed portion, and wherein the support portion can include a plurality of bridges configured to have the electrical wires embedded therein.

[0026] The support portion can include a guide disposed between the movable portion and the fixed portion and connected to the movable portion and the fixed portion by the plurality of bridges.

[0027] In a general aspect, a camera module includes a housing, a carrier disposed in the housing and configured to move in a first direction, a first movable body movably disposed in the carrier, a second movable body movably coupled to the first movable body, an image sensor coupled to the second movable body and having an imaging face oriented in the first direction, and a substrate mechanically connecting the second movable body to the first movable body and configured to deform based on movement of the second movable body relative to the first movable body.

[0028] The substrate can include a movable portion fixedly coupled to the second movable body, a fixed portion fixedly coupled to the first movable body, and a support portion interconnecting the movable portion and the fixed portion, wherein the support portion can include a plurality of bridges having electrical wires coupled to the image sensor embedded therein.

[0029] The camera module can include a first driver configured to move the second movable body relative to the first movable body in a direction orthogonal to the first direction, a second driver configured to rotate the second movable body relative to the first movable body about an axis parallel to the first direction, and a third driver configured to rotate the first movable body relative to the carrier about an axis orthogonal to the first direction, wherein the third driver includes a tilt guide ball disposed between the carrier and the first movable body and configured to provide a tilt center of the first movable body relative to the carrier.

[0030] In a general aspect, a camera module includes a housing, an auto focus (AF) carrier disposed in the housing and configured to move in an optical axis direction, a tilt carrier disposed on the AF carrier and configured to tilt relative to a fixed body about an axis orthogonal to the optical axis direction, a movable body disposed on the tilt carrier, an image sensor coupled to the movable body, and a substrate coupled to the tilt carrier and the movable body and configured to deform based on movement of the movable body relative to the tilt carrier.

[0031] The substrate can include a movable portion on which the image sensor is disposed, a fixed portion fixed to the tilt bearing portion, and a support portion connecting the movable portion to the fixed portion, wherein at least a portion of the fixed portion is configured to be deformed based on movement between the movable portion and the tilt bearing portion.

[0032] The camera module can further include a ball member disposed between the AF bearing portion and the housing and configured to move the AF bearing portion in the optical axis direction.

[0033] Other features and aspects will become apparent from the associated claims, the drawings, and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 Components included in an exemplary camera module according to one or more embodiments are shown.

[0035] Figure 2A An exemplary sensor shift module according to one or more embodiments is shown.

[0036] Figure 2B An actuator included in an OIS drive unit according to one or more embodiments is shown.

[0037] Figure 2C A traction device between a first movable body and a fixed body according to one or more embodiments is shown.

[0038] Figure 3 A substrate having an exemplary image sensor mounted thereon when viewed from above according to one or more embodiments is shown.

[0039] Figure 4A And Figure 4B An arrangement of a first OIS driver and a second OIS driver according to one or more embodiments is shown.

[0040] Figure 5A And Figure 5B Movement of a second movable body due to a first OIS driver according to one or more embodiments is shown.

[0041] Figure 6A And Figure 6B Rolling of a second movable body due to a second OIS driver according to one or more embodiments is shown.

[0042] Figure 7A And Figure 7B Tilting of a first movable body due to a third OIS driver according to one or more embodiments is shown.

[0043] Figure 8A Figure 8B Figure 8C Figure 8D FIG. 1 illustrates a substrate according to one or more embodiments.

[0044] Figure 9 FIG. 1 illustrates an exemplary camera module according to one or more embodiments.

[0045] Figure 10 FIG. 1 illustrates an exemplary camera module according to one or more embodiments.

[0046] Figure 11 Figure 12 FIG. 1 illustrates an exemplary camera module according to one or more embodiments.

[0047] Throughout the drawings and detailed description, identical reference characters will be understood to refer to the same or like elements. The drawings are not necessarily to scale, and the relative dimensions, proportions, and depiction of elements in the drawings are for purposes of explanation, illustration, and clarity only. The same or similar reference characters refer to the same, similar, or like elements throughout the drawings and detailed description. DETAILED DESCRIPTION

[0048] The following detailed description is presented to aid in understanding the method, apparatus, and / or system described herein. It is not intended to limit the method, apparatus, and / or system described herein to the exact construction, examples, and / or embodiments described herein. Various changes, modifications, and / or equivalents can be made to the method, apparatus, and / or system described herein, without departing from the scope of the disclosure. For example, the order of the operations described herein can be altered, except where such alterations can significantly impact the functionality of the method, apparatus, and / or system described herein, and except where such alterations can significantly impact the functionality of the method, apparatus, and / or system described herein. Furthermore, certain features can be omitted or simplified in the interest of clarity and conciseness, and it should be noted that the omission or simplification is not intended to be construed as a limitation of the features and their descriptions.

[0049] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, these examples are provided as illustrative of ways to implement the method, apparatus, and / or system described herein in the manner described in the disclosure after it is made. Furthermore, the described examples are not the only ways to implement the method, apparatus, and / or system described herein.

[0050] In the drawings, like elements will be denoted by like reference numbers. Furthermore, a redundant description and detailed description of known functions and elements that can unnecessarily obscure the purpose of the disclosure will not be provided. In the drawings, some elements can be exaggerated, omitted, or simply shown, and the size of the elements does not necessarily reflect the actual size of the elements.

[0051] ​​​​Although expressions such as "first", "second", and "third" can be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections are not limited by these expressions. Rather, these expressions are merely used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section mentioned in the examples can also be referred to as a second element, component, region, layer or section without departing from the teachings of the examples described herein.

[0052] The use of the terms "a" and "an" and "the" includes plural reference unless the context clearly dictates otherwise.

[0053] Throughout the specification, where an element, such as a layer, region or substrate, is described as being "on", "connected to" or "coupled to" another element, it can be directly on, directly connected to, or directly coupled to the other element, or one or more other elements can be interposed therebetween. Conversely, where an element is described as being "directly on", "directly connected to" or "directly coupled to" another element, then there are no other elements interposed therebetween. Similarly, expressions such as "between" and "directly between" and "adjacent" and "directly adjacent" can also be interpreted in the manner set forth above.

[0054] The terminology used herein is for the purpose of describing particular examples only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. As used herein, the terms "comprises", "comprising", "includes", "including" and "has" are intended to be inclusive and allow for there to be additional

[0055] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and this disclosure and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0056] In example embodiments, in the drawings, an X direction, a Y direction, and a Z direction can respectively refer to a direction parallel to an X axis, a direction parallel to a Y axis, and a direction parallel to a Z axis. Also, unless otherwise stated, the X direction can include a +X axis direction and a -X axis direction, and this also applies to the Y direction and the Z direction.

[0057] In example embodiments, two directions (or axes) that are parallel or orthogonal to each other can also include an example in which the two directions (or axes) are substantially parallel or substantially orthogonal to each other. For example, a configuration in which a first axis and a second axis are orthogonal to each other can mean that the first axis and the second axis can form an angle of 90 degrees or an angle of about 90 degrees.

[0058] An "example embodiment" does not necessarily mean the same example embodiment. Particular features, structures, or characteristics can be combined in any suitable manner in an example embodiment.

[0059] In example embodiments, "configured to" can mean that a component can include a structure necessary to implement a function.

[0060] One or more examples implement optical image stabilization by driving an image sensor.

[0061] One or more examples can enable a camera to provide an effective optical image stabilization function with low power consumption, and to provide an auto focus function and an improved shake correction function by driving an image sensor in different directions.

[0062] 1. Camera module

[0063] Figure 1 Example components included in a camera module 1 according to one or more embodiments are illustrated.

[0064] In an example embodiment, the camera module 1 can include the lens module 20 including at least one lens 21 and a lens barrel 22 housing the at least one lens 21, and the image sensor 11. Light can pass through the lens module 20 and can reach an imaging surface of the image sensor 11. The camera module 1 can include the AF driver 23 that can move the lens module 20 in the optical axis direction to adjust the focal length. The AF driver 23 can include, for example, a coil and a magnet that are opposite to each other. The coil can be fixedly coupled to the lens module 20, the magnet can be coupled to a fixed body such as a housing, and electromagnetic interaction between the coil and the magnet can move the lens module 20 in the optical axis direction.

[0065] In an example, autofocus can be implemented by driving the image sensor 11 instead of driving the lens module 20. For example, the second AF driver 13 can move the image sensor 11 in the optical axis direction. An example of the second AF driver 13 will be described with reference to FIGS. 2A and 2B. Figure 9 and Figure 10 An example of the second AF driver 13 will be described.

[0066] In an example embodiment, the camera module 1 can provide an optical image stabilization (hereinafter referred to as "OIS") function. The camera module 1 can provide the OIS function by driving the image sensor 11. For example, the camera module 1 can include the OIS driver 12 configured to move the image sensor 11 in a direction orthogonal to the optical axis, or to allow the image sensor 11 to rotate around an axis parallel to the optical axis, or to rotate around an axis perpendicular to the optical axis.

[0067] In an example embodiment, the camera module 1 can include the sensor shift module 10. The sensor shift module 10 can include components necessary to implement the OIS function by driving the image sensor 11. For example, the sensor shift module 10 can include the image sensor 11 and the OIS driver 12 that drives the image sensor 11. As another example, the sensor shift module 10 can refer only to the OIS driver 12 without including the image sensor 11.

[0068] In an example embodiment, the camera module 1 can include optical elements in addition to the lens module 20 and the image sensor 11. In an example embodiment, the camera module 1 can include two or more lens modules. For example, the first optical element 30 and / or the second optical element 40 can be a lens module different from the lens module 20.

[0069] In an exemplary embodiment, the camera module 1 can include a light path changing element disposed in front of the lens module 20. For example, the first optical element 30 can be implemented as a prism or a mirror. In another exemplary embodiment, the light path changing element can be disposed between the image sensor 11 and the lens module 20. For example, the second optical element 40 can be implemented as a prism or a mirror.

[0070] Hereinafter, reference will be made to Figures 2A-8D The sensor shift module 100 described can be applied to Figure 1 the camera module 1 shown in FIG.

[0071] 2. Sensor shift

[0072] Figure 2A An exemplary sensor shift module 100 according to one or more embodiments is shown. Figure 2B An actuator included in an OIS driving unit according to one or more embodiments is shown. Figure 2C is a diagram showing a traction device between a first movable body and a fixed body according to one or more embodiments.

[0073] The sensor shift module 100 can include an OIS driver. The OIS driver can include at least one of a first OIS driver, a second OIS driver, and a third OIS driver, which will be described later. The first OIS driver can move the image sensor 111 in a direction orthogonal to the optical axis, the second OIS driver can rotate the image sensor 111 about an axis parallel to the optical axis, and the third OIS driver can rotate the image sensor 111 about an axis orthogonal to the optical axis.

[0074] Figure 1 The OIS driver 12 of the camera module 1 in FIG.

[0075] 2.1. Translational + Rolling OIS

[0076] 2.1.1. Structure

[0077] The sensor shift module 100 can include a first OIS driver that drives the image sensor 111. In an exemplary embodiment, the sensor shift module 100 can include a second movable body 110 including the image sensor 111 and a first movable body 130 that carries the second movable body 110. The second movable body 110 can be movably disposed in the first movable body 130. The second movable body 110 can be configured to move with the image sensor 111. For example, the second movable body 110 can include a sensor substrate 112 on which the image sensor 111 is mounted and a sensor bracket 113 coupled to the sensor substrate 112. The second movable body 110 can be moved in a direction orthogonal to the optical axis with respect to the first movable body 130 by the first OIS driver.

[0078] Referring to Figure 2A The sensor bracket 113 can include a plate 113a connected to a lower portion of the sensor substrate 112 and an extension portion 113b extending from an edge of the plate 113a to an upper portion (+Z direction). The extension portion 113b can be opposite the coils 122 and 152, and the magnets 121, 151, and 161 can be disposed on the extension portion 113b.

[0079] A signal of the image sensor 111 can be transmitted to another electronic component (e.g., an image signal processor (ISP)) through the sensor substrate 112 and a connector.

[0080] The first movable body 130 can include a base 131 and components fixedly connected to the base 131. For example, the first movable body 130 can include a driving magnet 121 of the first OIS driver and a driving magnet 151 of the second OIS driver, which will be described later.

[0081] In an exemplary embodiment, the sensor shift module 100 can include a first OIS driver that moves the image sensor 111 in a direction orthogonal to the optical axis O. The second movable body 110 can be moved with respect to the first movable body 130 in a direction orthogonal to a direction in which an imaging surface 111a of the image sensor 111 is directed by the first OIS driver. In an exemplary embodiment, the first OIS driver can correct a shake of the camera module 1 or the electronic device on which the image sensor 111 is mounted in a direction orthogonal to the optical axis O. In an exemplary embodiment, the first OIS driver can move the image sensor 111 in a first direction and a second direction orthogonal to the optical axis O. The first direction and the second direction can intersect each other. For example, the first OIS driver can move the second movable body 110 in an X direction and / or a Y direction orthogonal to the Z axis, thereby correcting a shake in the X direction and / or the Y direction.

[0082] In an example embodiment, a direction in which the imaging surface 111a of the image sensor 111 is directed can be referred to as an optical axis O direction. That is, the second movable body 110 can move relative to the first movable body 130 in a direction orthogonal to the optical axis O. In the drawings, the optical axis O can be parallel to the Z axis, and thus, the Z direction can refer to a direction parallel to the optical axis O. Further, the X direction or the Y direction can refer to a direction orthogonal to the optical axis O. For example, in an example embodiment, a configuration in which the second movable body 110 moves in the X direction can indicate that the second movable body 110 can move in a direction orthogonal to the optical axis O. In another example, a configuration in which the driving magnet 121 and the driving coil 122 are opposite each other in the X direction can indicate that the driving magnet 121 and the driving coil 122 are opposite each other in a direction orthogonal to the optical axis O. Further, the X direction or the Y direction can be examples of two directions orthogonal to the optical axis and intersecting each other, and in an example embodiment, the X direction and the Y direction can be configured as two directions orthogonal to the optical axis O and intersecting each other.

[0083] In an example embodiment, the sensor shift module 100 can include a second OIS driver that rotates the image sensor 111 about an axis parallel to the optical axis O. The second movable body 110 can be rotated relative to the fixed body 170 about an axis parallel to a direction in which the imaging surface 111a of the image sensor 111 is directed by the second OIS driver. In an example embodiment, the second OIS driver can correct rotation of the camera module 1 or the electronic device on which the image sensor 111 is mounted about an axis parallel to the optical axis O.

[0084] 2.1.2 First actuator (translation)

[0085] Referring to Figure 2A and Figure 2B In an example embodiment, the first OIS driver can include a first actuator 120 disposed between the first movable body 130 and the second movable body 110. In an example embodiment, the first actuator 120 can include a first driving magnet 121 coupled to the second movable body 110 and a first driving coil 122 coupled to the first movable body 130. For example, referring to Figure 2A In an example embodiment, the first driving coil 122 and the first driving magnet 121 can be coupled to the base 131 and the sensor holder 113, respectively. The first driving magnet 121 and the first driving coil 122 can be opposite each other in a direction orthogonal to the optical axis O (e.g., the X direction or the Y direction). Electromagnetic interaction between the first driving magnet 121 and the first driving coil 122 can allow the second movable body 110 to move relative to the first movable body 130 in a direction orthogonal to the optical axis O.

[0086] The first OIS driver can include a plurality of first actuators 120, and each of the first actuators 120 can include a first driving magnet 121 and a first driving coil 122. For example, the first OIS driver can include a 1-1 actuator 120-1 disposed on a first side surface 110a-1 of the second movable body 110 and a 1-2 actuator 120-2 disposed on a second side surface 110a-2 of the second movable body 110. Referring to Figure 2B , the 1-1 actuator 120-1 can include a 1-1 driving magnet 121-1 and a 1-1 driving coil 122-1. The 1-2 actuator 120-2 can include a 1-2 driving magnet 121-2 and a 1-2 driving coil 122-2.

[0087] In an exemplary embodiment, the first OIS driver can further include a magnetic yoke 123 disposed on one side of the first driving magnet 121 and / or the first driving coil 122. The magnetic yoke 123 attached to one side of the first driving coil 122 can allow the magnetic field generated by the first driving coil 122 to be concentrated in a direction toward the first driving magnet 121. Since the magnetic yoke 123 is disposed on one side of the first driving coil 122, it can prevent or reduce the influence of the magnetic field generated by the first driving coil 122 on other electronic components. The magnetic yoke 123 attached to one side of the first driving magnet 121 can allow the magnetic field generated by the first driving magnet 121 to be concentrated in a direction toward the first driving coil 122.

[0088] In an exemplary embodiment, the first driving coil 122 and the first driving magnet 121 can be coupled to the first movable body 130 and the second movable body 110, respectively, but exemplary embodiments thereof are not limited thereto. In another exemplary embodiment, the first driving coil 122 and the first driving magnet 121 can be coupled to the second movable body 110 and the first movable body 130, respectively. For example, the first driving coil 122 and the first driving magnet 121 can be coupled to the sensor bracket 113 and the base 131, respectively.

[0089] 2.1.3 Second Actuator (Rolling)

[0090] Referring to Figure 2A and Figure 2B In an exemplary embodiment, the second OIS driver can include a second actuator 150 disposed between the first movable body 130 and the second movable body 110. In an exemplary embodiment, the second actuator 150 can include a second driving magnet 151 coupled to the second movable body 110 and a second driving coil 152 coupled to the first movable body 130. For example, referring to Figure 2AIn an exemplary embodiment, the second drive coil 152 and the second drive magnet 151 can be connected to the base 131 and the sensor bracket 113, respectively. The second drive magnet 151 and the second drive coil 152 can be opposite each other in a direction orthogonal to the optical axis O. The electromagnetic interaction between the second drive magnet 151 and the second drive coil 152 can cause the second movable body 110 to rotate relative to the first movable body 130 about an axis parallel to the optical axis O.

[0091] The second OIS driver may include a plurality of second actuators 150, and each of the second actuators 150 may include a second drive magnet 151 and a second drive coil 152. For example, the second OIS driver may include a 2-1 actuator 150-1 disposed on a third side surface 110a-3 of the second movable body 110 and a 2-2 actuator 150-2 disposed on a fourth side surface 110a-4 of the second movable body 110. (Refer to...) Figure 2B 2-1 Actuator 150-1 may include 2-1 driving magnet 151-1 and 2-1 driving coil 152-1. 2-2 Actuator 150-2 may include 2-2 driving magnet 151-2 and 2-2 driving coil 152-2.

[0092] In an exemplary embodiment, the second OIS driver may further include a yoke 153 disposed on one side of the second drive magnet 151 and / or the second drive coil 152. The yoke 153 attached to one side of the second drive coil 152 allows the magnetic field generated by the second drive coil 152 to be concentrated in the direction toward the second drive magnet 151. Because the yoke 153 is disposed on one side of the second drive coil 152, the magnetic field generated by the second drive coil 152 can be prevented from affecting other electronic components, or the influence of the magnetic field on other electronic components can be reduced. The yoke 153 attached to one side of the second drive magnet 151 allows the magnetic field generated by the second drive magnet 151 to be concentrated in the direction toward the second drive coil 152.

[0093] In an exemplary embodiment, the second drive coil 152 and the second drive magnet 151 can be connected to the first movable body 130 and the second movable body 110, respectively, but the exemplary embodiment is not limited thereto. In another exemplary embodiment, the second drive coil 152 and the second drive magnet 151 can be connected to the second movable body 110 and the first movable body 130, respectively. For example, the second drive coil 152 and the second drive magnet 151 can be connected to the sensor bracket 113 and the base 131, respectively.

[0094] 2.1.4. PCB Springs

[0095] In an exemplary embodiment, the sensor shift module 100 can include a substrate 140 mechanically connecting the second movable body 110 to the first movable body 130. The substrate 140 can couple the second movable body 110 to the first movable body 130 so that the second movable body 110 can move with respect to the first movable body 130 in a plane orthogonal to the optical axis. A portion of the substrate 140 can be deformed according to the movement of the second movable body 110 with respect to the first movable body 130. That is, a portion of the substrate 140 can be flexible. When the substrate 140 is deformed, a restoring force can be generated in the substrate 140, and the restoring force can allow the second movable body 110 to return to an initial position. The second movable body 110 in a state of equilibrium can move with respect to the first movable body 130 when a current is applied to the first driving coil 122 or the second driving coil 152, and the second movable body 110 can return to the initial position through the substrate 140 when no current flows through the first driving coil 122 and the second driving coil 152.

[0096] Figure 3 A substrate on which an image sensor is mounted according to an exemplary embodiment is shown as viewed from above. Referring to Figures 2A-2C and Figure 3 The substrate 140 can include a movable portion 141 (floating portion) on which the sensor substrate 112 is disposed and a fixed portion 142 fixed to the first movable body 130. The sensor substrate 112 and the movable portion 141 can be electrically connected to each other by solder balls at respective contact points P1 and P2.

[0097] When the second movable body 110 (or the image sensor 111) moves with respect to the first movable body 130, the movable portion 141 can move with respect to the fixed portion 142. The substrate 140 can include a support portion 143 connecting the movable portion 141 to the fixed portion 142. At least a portion of the support portion 143 can be deformed according to the relative motion between the movable portion 141 and the first movable body 130. For example, the support portion 143 can be configured as a flexible substrate. The flexible substrate can be provided in the form of a conductive pattern (or an electric wire 145) formed in a film formed of a polyimide material.

[0098] In an exemplary embodiment, the substrate 140 can include a plurality of bridging elements 144 connecting the movable portion 141 to the fixed portion 142. The plurality of bridging elements 144 can be included in at least a portion of the support portion 143. The plurality of bridging elements 144 can be formed of a flexible material such that, when the movable portion 141 moves with respect to the fixed portion 142, the plurality of bridging elements 144 can deform. The movable portion 141 can move with respect to the fixed portion 142 when the second movable body 110 moves with respect to the first movable body 130, and the bridging elements 144 can deform. A restoring force generated when the bridging elements 144 deform can allow the second movable body 110 or the movable portion 141 to return to an initial position. Each of the plurality of bridging elements 144 can have at least one electric wire 145 embedded therein. That is, the plurality of bridging elements 144 can mechanically and electrically connect the movable portion 141 (or the second movable body 110) and the fixed portion 142 (or the first movable body 130). That is, the bridging elements 144 can support the image sensor 111 and can serve as a passage through which a signal of the image sensor 111 is transmitted.

[0099] In an exemplary embodiment, the substrate 140 can include a guide 146 disposed between the movable portion 141 and the fixed portion 142. For example, the guide 146 can be disposed in the form of a photo frame around the movable portion 141. The fixed portion 142, the guide 146, and the movable portion 141 can be connected to each other by the bridging elements 144. For example, the substrate 140 can include a first bridging member 147 extending from the guide 146 to the fixed portion 142 and a second bridging member 148 extending from the movable portion 141 to the guide 146. The first bridging member 147 and the second bridging member 148 can extend in directions orthogonal to the optical axis. The first bridging member 147 and the second bridging member 148 can extend in directions intersecting each other. For example, the first bridging member 147 can extend in the Y direction, and the second bridging member 148 can extend in the X direction.

[0100] Each of the first bridging member 147 and the second bridging member 148 can include one or more bridging elements 144. In an exemplary embodiment, the first bridging member 147 can include four bridging elements 144 extending in the Y direction, and the second bridging member 148 can include four bridging elements 144 extending in the X direction. Figure 3 In an exemplary embodiment, the first bridging member 147 can include four bridging elements 144 extending in the Y direction, and the second bridging member 148 can include four bridging elements 144 extending in the X direction. Figure 3The substrate 140 among them can be an example, and the shape of the support portion 143 connecting the movable portion 141 to the fixed portion 142 can be changed. For example, the support portion 143 can include a plurality of bridge elements 144 extending directly from the movable portion 141 to the fixed portion 142. As another example, the first bridge 147 or the second bridge 148 can include five bridge elements 144. The number of bridge elements 144 included in the first bridge 147 or the second bridge 148 can correspond to the number corresponding to the terminals of the image sensor 111.

[0101] The substrate 140 can include an electric wire 145 transmitting a signal of the image sensor 111. The plurality of bridge elements 144 included in the support portion 143 can embed the electric wire 145 therein. The image sensor 111 can be mounted on a sensor substrate 112, and the sensor substrate 112 can be electrically connected to the fixed portion 142 of the substrate 140. The electric wire 145 can extend from each contact point P2 formed in the movable portion 141. The electric wire 145 can extend to the fixed portion 142 through the bridge element 144. The electric wire 145 extending to the fixed portion 142 can be electrically connected to another substrate or an electronic component.

[0102] Figure 3 The electric wire 145 formed on the substrate 140 is illustrated, and only the electric wire 145 extending from a part of the contact points P2 is illustrated for convenience of description.

[0103] In an exemplary embodiment, the first OIS driver can include a first position sensor that can measure how much the second movable body 110 moves in a direction orthogonal to the optical axis O. For example only, the first position sensor can be configured as a Hall sensor or a magneto-resistive sensor. In an exemplary embodiment, the first position sensor can be disposed in the first driving coil 122 to be opposite to the first driving magnet 121. An inner portion of the coil can refer to an empty space corresponding to a winding center of the coil. In another exemplary embodiment, the first OIS driver can include a sensing magnet different from the first driving magnet 121, and the first position sensor can be disposed to be opposite to the sensing magnet. For example, the first position sensor and the sensing magnet can be disposed to be opposite to the base 131 or the substrate 140 in the optical axis direction (in the Z direction).

[0104] In an exemplary embodiment, the first OIS driver can include a second position sensor that can measure how much the second movable body 110 rotates about an axis parallel to the optical axis O. The second position sensor can be configured as a Hall sensor or a magneto-resistive sensor. In an exemplary embodiment, the second position sensor can be disposed in the second driving coil 152 to be opposite to the second driving magnet 151. In another exemplary embodiment, the second OIS driver can include a sensing magnet different from the second driving magnet 151, and the second position sensor can be disposed to be opposite to the sensing magnet. For example, the second position sensor and the sensing magnet can be disposed to be opposite to the base 131 or the substrate 140 in the optical axis direction (in the Z direction).

[0105] The second position sensor can be the same component as the first position sensor. That is, one position sensor can be used to measure the translational motion of the second movable body (by the motion of the first OIS driver) and the rotational motion (by the motion of the second OIS driver).

[0106] 2.1.4. Arrangement of actuators

[0107] Figure 4A and Figure 4B An arrangement of the first OIS driver and the second OIS driver according to one or more embodiments is illustrated.

[0108] Referring to Figure 2B , Figure 4A or Figure 4B , the second movable body 110 can include four side surfaces 110a-1, 110a-2, 110a-3, and 110a-4 forming a quadrilateral shape, and two side surfaces adjacent to each other among the four side surfaces 110a-1, 110a-2, 110a-3, and 110a-4 can form a corner.

[0109] The second movable body 110 can include a first side surface 110a-1, a second side surface 110a-2, a third side surface 110a-3, and a fourth side surface 110a-4 in a clockwise direction. A first corner 110b-1 can be formed between the first side surface 110a-1 and the second side surface 110a-2, a second corner 110b-2 can be formed between the second side surface 110a-2 and the third side surface 110a-3, a third corner 110b-3 can be formed between the third side surface 110a-3 and the fourth side surface 110a-4, and a fourth corner 110b-4 can be formed between the fourth side surface 110a-4 and the first side surface 110a-1. The side surface 110a of the second movable body 110 can be a side surface of the sensor holder 113.

[0110] In an exemplary embodiment, the four side surfaces 110a-1, 110a-2, 110a-3, 110a-4 can be parallel to the horizontal side 111b or the vertical side 111c of the image sensor 111, and the four corners 110b can be disposed in diagonal directions D1 and D2 of the image sensor 111.

[0111] The first actuator 120 and the second actuator 150 can be disposed on different side surfaces from each other among the four side surfaces 110a-1, 110a-2, 110a-3, 110a-4. For example, the 1-1 actuator 120-1, the 1-2 actuator 120-2, the 2-1 actuator 150-1, and the 2-2 actuator 150-2 can be disposed on the first side surface 110a-1, the second side surface 110a-2, the third side surface 110a-3, and the fourth side surface 110a-4, respectively.

[0112] Referring to Figure 4A and Figure 4B The second actuator 150 included in the second OIS driver can be disposed adjacent to the corner 110b of the second movable body 110. Since the second actuator 150 is disposed adjacent to the corner 110b, the second movable body 110 can be effectively rotated.

[0113] Referring to Figure 4A As an example, the 1-1 actuator 120-1 and the 1-2 actuator 120-2 included in the first OIS driver can be disposed at the center of the first side surface 110a-1 and the second side surface 110a-2. As an example, the 2-1 actuator 150-1 and the 2-2 actuator 150-2 included in the second OIS driver can be disposed on the third side surface 110a-3 and the fourth side surface 110a-4, respectively. The 2-1 actuator 150-1 and the 2-2 actuator 150-2 can be disposed adjacent to the second corner 110b-2 and the third corner 110b-3, respectively.

[0114] Referring to Figure 4B The 2-1 actuator 150-1 and the 2-2 actuator 150-2 included in the second OIS driver can be disposed on the third side surface 110a-3 and the fourth side surface 110a-4, respectively. The 2-1 actuator 150-1 and the 2-2 actuator 150-2 can be disposed adjacent to the third corner 110b-3 and the fourth corner 110b-4, respectively.

[0115] 2.2. Tilt OIS

[0116] 2.2.1. Structure

[0117] Referring to Figure 2AThe sensor shifting module 100 may include a third OIS driver. The sensor shifting module 100 may include a third OIS driver that moves a first movable body 130 relative to a fixed body 170. The third OIS driver may be positioned relative to the fixed body 170 about an axis orthogonal to the optical axis O (e.g., Figure 2B The first movable body 130 is rotated along either the first axis A1 or the second axis A2. Shake correction can be achieved by translating the image sensor 111 in a direction orthogonal to the optical axis O. However, due to the relatively small size of the moving camera, the range of translational movement may be relatively small, and therefore, when the degree of shake is relatively large, the correction amount may not be sufficient to cover the shake. The third OIS driver can correct shake by tilting the image sensor 111, and can provide excellent quality shake correction even for relatively large shakes.

[0118] The first movable body 130 can be movably disposed within the fixed body 170. The first movable body 130 can be moved relative to the fixed body 170 by a third OIS driver. An image sensor 111 can be coupled to the first movable body 130. For example, the image sensor 111 can be coupled to a second movable body 110, and the second movable body 110 can be movably coupled to the first movable body 130. The second movable body 110 can be moved relative to the first movable body 130 by either the first or second OIS driver.

[0119] 2.2.2. Third Actuator (Tilting)

[0120] Reference Figure 2A and Figure 2B The third OIS driver may include a third actuator 160 disposed between the fixed body 170 and the first movable body 130. The third actuator 160 may include a third drive magnet 161 coupled to the first movable body 130 or the second movable body 110 and a third drive coil 162 coupled to the fixed body 170 to be opposite to the third drive magnet 161.

[0121] In an exemplary embodiment, the third actuator 160 may further include a yoke 163. The yoke 163 may be disposed on one side of the third drive magnet 161 and / or the third drive coil 162.

[0122] In an example embodiment, the third driving magnet 161 can be the first driving magnet 121 of the first OIS driver or the second driving magnet 151 of the second OIS driver. That is, the first driving magnet 121 or the second driving magnet 151 can be included in a part of the third OIS driver. For example, at least one of the 1-1 driving magnet 121-1, the 1-2 driving magnet 121-2, the 2-1 driving magnet 151-1, or the 2-2 driving magnet 151-2 can be used as the third driving magnet 161. Accordingly, the component described as the third driving magnet 161 in an example embodiment can be understood as the first driving magnet 121 or the second driving magnet 151.

[0123] The third OIS driver can include a plurality of third actuators 160, and each of the third actuators 160 can include a third driving magnet 161 and a third driving coil 162. For example, the third OIS driver can include four third actuators 160 corresponding to the 1-1 actuator 120-1, the 1-2 actuator 120-2, the 2-1 actuator 150-1, and the 2-2 actuator 150-2, respectively.

[0124] In an example embodiment, the third actuators 160 can include a 3-1 actuator 160-1, a 3-2 actuator 160-2, a 3-3 actuator 160-3, and a 3-4 actuator 160-4.

[0125] Referring to Figure 2B The 3-1 actuator 160-1 can include a 3-1 driving magnet 161-1 and a 3-1 driving coil 162-1. The 3-2 actuator 160-2 can include a 3-2 driving magnet 161-2 and a 3-2 driving coil 162-2. The 3-3 actuator 160-3 can include a 3-3 driving magnet 161-3 and a 3-3 driving coil 162-3. The 3-4 actuator 160-4 can include a 3-4 driving magnet 161-4 and a 3-4 driving coil 162-4.

[0126] The 1-1 driving magnet 121-1, the 1-2 driving magnet 121-2, the 2-1 driving magnet 151-1, and the 2-2 driving magnet 151-2 can be used as the driving magnets 161-1, 161-2, 161-3, and 161-4 of the 3-1 actuator 160-1, the 3-2 actuator 160-2, the 3-3 actuator 160-3, and the 3-4 actuator 160-4, respectively. The 3-1 driving coil 162-1, the 3-2 driving coil 162-2, the 3-3 driving coil 162-3, and the 3-4 driving coil 162-4 can be disposed to face the 1-1 driving magnet 121-1, the 1-2 driving magnet 121-2, the 2-1 driving magnet 151-1, and the 2-2 driving magnet 151-2, respectively.

[0127] Referring toFigure 2B The third OIS driver can rotate the first movable body 130 about the first axis A1 and the second axis A2. The first axis A1 and the second axis A2 can be orthogonal to the optical axis and can intersect each other. For example, the first axis A1 can be parallel to the Y-axis, and the second axis A2 can be parallel to the X-axis.

[0128] The 3-1 actuator 160-1 or the 3-3 actuator 160-3 can provide a moment of force to the first movable body 130 in the first axis A1 direction. When a current is applied to the 3-1 driving coil 162-1, an attractive force or a repulsive force can be generated between the 3-1 driving coil 162-1 and the 1-1 driving magnet 121-1, so that the first movable body 130 can be tilted with respect to the fixed body 170 about the first axis A1 orthogonal to the optical axis. When a current is applied to the 3-3 driving coil 162-3, an attractive force or a repulsive force can be generated between the 3-3 driving coil 162-3 and the 2-1 driving magnet 151-1, so that the first movable body 130 can be tilted with respect to the fixed body 170 about the first axis A1 orthogonal to the optical axis.

[0129] The 3-2 actuator 160-2 and the 3-4 actuator 160-4 can provide a moment of force to the first movable body 130 in the second axis A2 direction. When a current is applied to the 3-2 driving coil 162-2, an attractive force or a repulsive force can be generated between the 3-2 driving coil 162-2 and the 1-2 driving magnet 121-2, so that the first movable body 130 can be tilted with respect to the fixed body 170 about the second axis A2 orthogonal to the optical axis. When a current is applied to the 3-4 driving coil 162-4, an attractive force or a repulsive force can be generated between the 3-4 driving coil 162-4 and the 2-2 driving magnet 151-2, so that the first movable body 130 can be tilted with respect to the fixed body 170 about the second axis A2 orthogonal to the optical axis.

[0130] In an exemplary embodiment, a portion of the 3-1 driving coil 162-1, the 3-2 driving coil 162-2, the 3-3 driving coil 162-3, or the 3-4 driving coil 162-4 can not be provided. In an exemplary embodiment, one of the 3-1 actuator 160-1 and the 3-3 actuator 160-3 that provides a moment of force in the Y direction can not be provided. In an exemplary embodiment, one of the 3-2 actuator 160-2 and the 3-4 actuator 160-4 that provides a moment of force in the X direction can not be provided. For example, the third OIS driver can include only the 3-1 actuator 160-1 and the 3-2 actuator 160-2. As another example, the third OIS driver can include only the 3-3 actuator 160-3 and the 3-4 actuator 160-4.

[0131] Meanwhile, in an example, the first driving magnet 121 and the second driving magnet 151 included in a portion of the respective first OIS driver and second OIS driver can be coupled to the first movable body 130, or can alternatively be coupled to the second movable body 110. In this example, the third driving coil 162 can be disposed opposite the first driving magnet 121 and the second driving magnet 151 coupled to the second movable body 110.

[0132] 2.2.3. Ball guide

[0133] In an exemplary embodiment, the third OIS driver can include a tilt guide ball 164 disposed between the fixed body 170 and the first movable body 130. The tilt guide ball 164 can provide a tilt center for the fixed body 170 of the first movable body 130. For example, the first movable body 130 can tilt around the tilt guide ball 164. A lower surface of the first movable body 130 and a bottom surface of the fixed body 170 can face each other in a direction of the optical axis O, and grooves accommodating at least a portion of the tilt guide ball 164 can be respectively formed in the lower surface of the first movable body 130 and the bottom surface of the fixed body 170.

[0134] 2.2.4. Traction

[0135] Figure 2C The upper surface of the fixed body and the lower surface of the first movable body in an exemplary embodiment are shown.

[0136] Referring to Figure 2A and Figure 2C In an exemplary embodiment, the third OIS driver can include a traction device disposed on the fixed body 170 and the first movable body 130, respectively, and facing each other in a direction parallel to the optical axis O. The traction device can include a first magnetic member 165 and a second magnetic member 166. Magnetic attraction can be generated between the first magnetic member 165 and the second magnetic member 166, such that the first movable body 130 can be pulled toward the bottom surface of the fixed body 170. Accordingly, the tilt guide ball 164 can be kept in contact with the first movable body 130 and the fixed body 170 based on the interaction of the first magnetic member 165 and the second magnetic member 166, such that the first movable body 130 can be smoothly tilted with respect to the fixed body 170.

[0137] In an example, one of the first magnetic member 165 and the second magnetic member 166 can be a magnet, and the other can be a magnet or a magnetic yoke. As a non-limiting example, the first magnetic member 165 can be a magnet, and the second magnetic member 166 can be a magnetic yoke.

[0138] Referring to Figure 2CThe plurality of first magnetic members 165 and the plurality of second magnetic members 166 corresponding to the plurality of first magnetic members 165 can be disposed around the tilt guide ball 164.

[0139] In an exemplary embodiment, the third OIS driver can include a third position sensor configured to measure an amount of tilt of the first movable body 130. By way of example only, the third position sensor can be configured as a Hall sensor or a magneto-resistive sensor.

[0140] In an exemplary embodiment, the third position sensor can be disposed in the third driving coil 162 and can be opposite to the first driving magnet 121 or the second driving magnet 151.

[0141] In an exemplary embodiment, the third OIS driver can include a sensing magnet opposite to the third position sensor. In an exemplary embodiment, one of the first magnetic member 165 and the second magnetic member 166 can be a magnet, and the other can be a yoke, and the magnetic member that is the magnet can function as the sensing magnet. For example, referring to Figure 2A The first magnetic member 165 can be a magnet, the second magnetic member 166 can be a yoke, the first magnetic member 165 can include a through portion therein, and the third position sensor can be disposed in the through portion.

[0142] 2.3. Motion

[0143] 2.3.1. Translational motion

[0144] Figures 5A-5B It is shown that the second movable body moves based on the first OIS driver.

[0145] Referring to Figure 5A The 1-1 actuator 120-1 can move the second movable body 110 in the X direction with respect to the first movable body 130. When a current is applied to the 1-1 driving coil 122-1, an attractive force or a repulsive force in the X direction can be generated between the 1-1 driving coil 122-1 and the 1-1 driving magnet 121-1, so that the second movable body 110 (or the image sensor 111) can move in the -X direction or the +X direction.

[0146] Referring to Figure 5B The 1-2 actuator 120-2 can move the second movable body 110 in the Y direction with respect to the first movable body 130. When a current is applied to the 1-2 driving coil 122-2, an attractive force or a repulsive force in the Y direction can be generated between the 1-2 driving coil 122-2 and the 1-2 driving magnet 121-2, so that the second movable body 110 (or the image sensor 111) can move in the -Y direction or the +Y direction.

[0147] 2.3.2. Rolling motion

[0148] Figure 6A and Figure 6B Rolling of the second movable body 110 based on the second OIS driver is shown.

[0149] Referring to Figure 6A , the 2-1 actuator 150-1 and the 2-2 actuator 150-2 can rotate the second movable body 110 in a counterclockwise direction with respect to the first movable body 130. The 2-1 actuator 150-1 and the 2-2 actuator 150-2 can provide a moment of force to the second movable body 110 in the counterclockwise direction. For example, a Lorentz force can be generated between the 2-1 drive magnet 151-1 and the 2-1 drive coil 152-1, and thus, a force F1 can act on the 2-1 drive magnet 151-1. A Lorentz force can be generated between the 2-2 drive magnet 151-2 and the 2-2 drive coil 152-2, and thus, a force F2 can act on the 2-2 drive magnet 151-2. The forces F1 and F2 can rotate the second movable body 110 in the counterclockwise direction.

[0150] Referring to Figure 6B , the 2-1 actuator 150-1 and the 2-2 actuator 150-2 can rotate the second movable body 110 in a clockwise direction with respect to the first movable body 130. The 2-1 actuator 150-1 and the 2-2 actuator 150-2 can provide a moment of force to the second movable body 110 in the clockwise direction. For example, a Lorentz force can be generated between the 2-1 drive magnet 151-1 and the 2-1 drive coil 152-1, and thus, a force F3 can act on the 2-1 drive magnet 151-1. A Lorentz force can be generated between the 2-2 drive magnet 151-2 and the 2-2 drive coil 152-2, and thus, a force F4 can act on the 2-2 drive magnet 151-2. The forces F3 and F4 can rotate the second movable body 110 in the clockwise direction.

[0151] 2.3.3. Tilting motion

[0152] Figure 7A and Figure 7B Tilting of the first movable body or tilting carrier is shown.

[0153] Referring to Figure 7A and Figure 7B , the third OIS driver can rotate the image sensor 111 about an axis orthogonal to the optical axis. For example, the third OIS driver can rotate the first movable body 130 or the second movable body 110 in a clockwise direction or a counterclockwise direction with respect to the tilting guide ball 164.

[0154] Figure 7A and Figure 7BThe 3-1 actuator 160-1 and the 3-3 actuator 160-3 are shown to rotate the first movable body 130 in the first axis A1 direction (or Y-axis direction). Although not shown, the first movable body 130 can be rotated around different axes (e.g., the first axis A1 or the second axis A2 in FIG. 1) that are orthogonal to the optical axis by a plurality of third actuators including the 3-1 actuator 160-1 or the 3-3 actuator 160-3. Figure 2B

[0155] Referring to FIG. 1, Figure 7A When a current is applied to the 3-1 driving coil 162-1, a repulsive force can be generated between the 3-1 driving magnet 161-1 and the 3-1 driving coil 162-1, so that the first movable body 130 can be rotated in the counterclockwise direction. Additionally or alternatively, when a current is applied to the 3-3 driving coil 162-3, an attractive force can be generated between the 3-3 driving magnet 161-3 and the 3-3 driving coil 162-3, so that the first movable body 130 can be rotated in the counterclockwise direction with respect to the fixed body 170.

[0156] Referring to FIG. 1, Figure 7B When a current is applied to the 3-1 driving coil 162-1, an attractive force can be generated between the 3-1 driving magnet 161-1 and the 3-1 driving coil 162-1, so that the first movable body 130 can be rotated in the clockwise direction. Additionally or alternatively, when a current is applied to the 3-3 driving coil 162-3, a repulsive force can be generated between the 3-3 driving magnet 161-3 and the 3-3 driving coil 162-3, so that the first movable body 130 can be rotated in the clockwise direction with respect to the fixed body 170.

[0157] In an exemplary embodiment, one of the 3-1 actuator 160-1 and the 3-3 actuator 160-3 in the third OIS driver can not be provided. This is because the 3-1 actuator 160-1 and the 3-3 actuator 160-3 can rotate the first movable body 130 in the clockwise direction or the counterclockwise direction.

[0158] 2.4. Deformation of flexible substrate

[0159] Figure 8A , Figure 8B , Figure 8C and Figure 8D Deformation of the substrate 140 according to movement of the second movable body 110 is shown.

[0160] Referring to FIG. 1, Figure 8A ​When the second movable body 110 moves in the -X direction, the movable portion 141 of the substrate 140 can also move in the -X direction, and thus the first bridge member 147 connecting the guide member 146 to the fixed portion 142 can be deformed. Since the bridge element 144 included in the first bridge member 147 can have elasticity, the deformed first bridge member 147 can provide an elastic force to allow the movable portion 141 to return in the direction opposite to the moving direction (+X direction). Thus, when no current is applied to the first OIS driver, the movable portion 141 can move in the +X direction.

[0161] Referring to Figure 8B When the second movable body 110 moves in the +X direction, the movable portion 141 of the substrate 140 can also move in the +X direction, and thus the first bridge member 147 connecting the guide member 146 to the fixed portion 142 can be deformed. Since the bridge element 144 included in the first bridge member 147 has elasticity, the deformed first bridge member 147 can provide an elastic force to allow the movable portion 141 to return in the direction opposite to the moving direction (-X direction).

[0162] Referring to Figure 8C When the second movable body 110 moves in the +Y direction, the movable portion 141 of the substrate 140 can also move in the +Y direction, and thus the second bridge member 148 connecting the movable portion 141 to the guide member 146 can be deformed. Since the bridge element 144 included in the second bridge member 148 has elasticity, the deformed second bridge member 148 can provide an elastic force to allow the movable portion 141 to return in the direction opposite to the moving direction (-Y direction).

[0163] Referring to Figure 8D When the second movable body 110 moves in the -Y direction, the movable portion 141 of the substrate 140 can also move in the -Y direction, and thus the second bridge member 148 connecting the movable portion 141 to the guide member 146 can be deformed. Since the bridge element 144 included in the second bridge member 148 has elasticity, the deformed second bridge member 148 can provide an elastic force to allow the movable portion 141 to return in the direction opposite to the moving direction (+Y direction).

[0164] 3. Sensor shift AF

[0165] Figure 9 An exemplary camera module 200 according to a first example embodiment is shown. Figure 10 An exemplary camera module 300 according to one or more embodiments is shown.

[0166] Referring to Figure 9 andFigure 10 In an exemplary embodiment, camera modules 200 and 300 may include a housing 210, a lens barrel 220, an image sensor 111, an AF support 270, and an AF driver. The lens barrel 220 may include at least one lens and may be coupled to the housing 210. The image sensor 111 may be movably coupled to the AF support 270. For example, the AF support 270 and the image sensor 111 may respectively correspond to... Figure 2A The fixed body 170 and the image sensor 111 are included.

[0167] The sensor shifting module can be disposed in the AF support section 270. The sensor shifting module may include components contained in the reference section. Figures 2A-8D The sensor shifting module 100 described may include some or all of its components. For example, the sensor shifting module may include a driver configured to move the image sensor 111 relative to the AF carrier 270 in a direction orthogonal to the optical axis O, to rotate the image sensor 111 about an axis parallel to the optical axis O, or to rotate the image sensor 111 about an axis orthogonal to the optical axis O.

[0168] An AF driver may include a ball guide structure, a concentrator, and an AF actuator. Figure 9 and Figure 10 The AF driver in the middle can correspond to Figure 1 The second AF driver in the system.

[0169] Reference Figure 9 The image sensor 111 can be mounted on the AF support 270, and the AF support 270 can move relative to the housing 210 in the direction of the optical axis O. A ball member 231 can be disposed between the AF support 270 and the housing 210. The ball member 231 may include a plurality of balls.

[0170] The ball member 231 can be disposed between the first side surface 271 of the AF support portion 270 and the first side wall 211 of the housing 210. A guide groove for partially accommodating the ball member 231 can be formed in the first side surface 271 of the AF support portion 270 and the first side wall 211 of the housing 210. The guide groove can extend in a direction parallel to the optical axis O and can guide the movement of the AF support portion 270 in the direction of the optical axis O.

[0171] An AF actuator 240 may be disposed between the AF support portion 270 and the housing 210. The AF actuator 240 may include an AF coil 241 and an AF magnet 242 opposite to each other. In an exemplary embodiment, the AF coil 241 and the AF magnet 242 may be disposed in the housing 210 and the AF support portion 270, respectively. In another exemplary embodiment, the AF coil 241 and the AF magnet 242 may be disposed in the AF support portion 270 and the housing 210, respectively.

[0172] In an exemplary embodiment, the AF actuator 240 can include an AF coil 241 and an AF magnet 242 opposite each other in a direction (e.g., the X direction) orthogonal to the optical axis O. When a current flows in the AF coil 241, the AF bearing 270 can move in the optical axis O direction with respect to the housing 210 through electromagnetic interaction (e.g., Lorentz force) between the AF coil 241 and the AF magnet 242.

[0173] A device that pulls the AF bearing 270 to the side wall of the housing 210 can be disposed between the AF bearing 270 and the housing 210. In an exemplary embodiment, referring to Figure 9 , a traction yoke 251 can be disposed on one side of the AF coil 241, and the AF bearing 270 can be pulled toward the first side wall 211 of the housing 210 by an attractive force between the traction yoke 251 and the AF magnet 242. Accordingly, the ball member 231 can maintain contact with the AF bearing 270 and the housing 210, and thus, the AF bearing 270 can smoothly move in the optical axis O direction.

[0174] Referring to Figure 10 , in an exemplary embodiment, the AF actuator 340 can be disposed below the AF bearing 270. For example, the AF magnet 342 can be disposed on the lower surface of the AF bearing 270, and the AF coil 341 can be disposed on the bottom surface of the housing 210. In an exemplary embodiment, the AF magnet 342 and the AF coil 341 can be opposite each other in a direction (e.g., the Z direction) parallel to the optical axis O. When a current flows in the AF coil 341, an attractive force or a repulsive force can be generated between the AF coil 341 and the AF magnet 342, so that the AF bearing 270 can move in the optical axis O direction.

[0175] Referring to Figure 10 , a first elastic member 281 that pushes the AF bearing 270 toward the first side wall 211 of the housing 210 can be disposed between the AF bearing 270 and the housing 210. The ball member 231 can be disposed on the first side of the AF bearing 270, and the first elastic member 281 can be disposed on the second side of the AF bearing 270. The first elastic member 281 can be disposed between the AF bearing 270 and the housing 210, and can push the AF bearing 270 in the direction in which the ball member 231 is disposed. Accordingly, the ball member 231 can maintain contact with the AF bearing 270 and the housing 210, and thus, the AF bearing 270 can smoothly move in the optical axis O direction. The first elastic member 281 can be configured as a leaf spring. For example, the first elastic member 281 can be disposed in the form of a leaf spring bent to bend toward the AF bearing 270 (in the -X direction).

[0176] Referring to Figure 10 , a magnetic yoke 351 can be disposed on one side of the AF coil 341, and a magnetic attractive force can be generated between the magnetic yoke 351 and the AF magnet 342, so that the AF bearing part 270 can be pulled to the bottom surface of the housing 210. In an exemplary embodiment, the AF driver can include a second elastic member 282 disposed below the AF bearing part 270. The second elastic member 282 can support the AF bearing part 270. When the AF bearing part 270 moves from an initial position in the optical axis O direction, the second elastic member 282 can be deformed, so that the second elastic member 282 can provide a restoring force to allow the AF bearing part 270 to return to the initial position. The second elastic member 282 can be disposed in the form of a leaf spring. For example, referring to Figure 10 , the second elastic member 282 can be configured as a leaf spring bent toward the AF bearing part 270. Figure 10 The first elastic member 281 and / or the second elastic member 282 in Figure 9 may also be applied to the camera module 200 shown in

[0177] 4. Additional Exemplary Embodiments of Camera Modules

[0178] Figure 11 and Figure 12 Exemplary camera modules 400 and 500 according to one or more embodiments are shown.

[0179] Referring to Figure 11 , the camera module 400 can include a plurality of lens barrels 420. For example, the camera module 400 can include three lens barrels 421, 422, and 423. The lens barrels 420 can be fixedly coupled to the housing 410. The camera module 400 can include an optical path changing member 430 disposed on the object side of the front lens barrel 421. The optical path changing member 430 can change the path of light, and can be configured as, for example, a prism or a mirror. In the housing 410, the AF bearing part 270 including the image sensor 111 can be disposed to move in the optical axis direction, and the descriptions related to the components of the AF bearing part 270 and the AF driving can be the same as described with reference to Figure 9 and Figure 10 .

[0180] Referring to Figure 12 , the optical path changing member 530 can be disposed in front of the image sensor 111, and the lens barrel 520 can be disposed on one side of the optical path changing member 530. Light passing through the lens barrel 520 can be reflected from the optical path changing member 530 and can reach the image sensor 111. In the housing 510, the AF bearing part 270 including the image sensor 111 can be disposed in the optical axis direction, and the descriptions related to the components of the AF bearing part 270 and the AF driving can be the same as described with reference toFigure 9 and Figure 10 The description is the same as described.

[0181] According to the above-described exemplary embodiments, a camera can provide an effective auto-focusing function and an effective optical image stabilization function with low power. Further, an improved shake correction function can be implemented by driving an image sensor in different directions.

[0182] While the disclosure includes specific examples, it will be apparent to one of ordinary skill in the art, after understanding the disclosure provided herein, that various changes in form and details can be made without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects in each example should be considered as being applicable to similar features or aspects in other examples. Proper results can be obtained if the described techniques are performed in a different order, and / or if components in a described system, architecture, device, or circuit are combined in a different manner or replaced or supplemented by other components or their equivalents. Thus, the scope of the disclosure should not be limited by the specific examples described herein, but only by the claims and their equivalents.

Claims

1. A camera module comprising: a housing; a lens barrel coupled to the housing; a carrier disposed in the housing and configured to move in a first direction; an image sensor movably disposed in the carrier; and an auto focus driver including: an auto focus actuator configured to move the carrier in the first direction with respect to the housing; and a ball member disposed between the carrier and the housing. The image sensor has an imaging surface oriented in the first direction. The auto focus actuator includes: an auto focus coil disposed on a first side of the carrier and coupled to one of the housing and the carrier; and an auto focus magnet coupled to the other of the housing and the carrier and opposite the auto focus coil in a direction orthogonal to the first direction.

2. The camera module of claim 1, wherein, 4.The camera module of claim 3, further comprising a yoke disposed on a side of the auto focus coil.

3. The camera module of claim 1, wherein, The auto focus actuator includes: an auto focus coil disposed below the carrier and coupled to one of the housing and the carrier; and an auto focus magnet coupled to the other of the housing and the carrier and opposite the auto focus coil in the first direction. 6.The camera module of claim 5, further comprising:

5. The camera module of claim 1, wherein, a first elastic member disposed between the carrier and the housing, wherein the ball member is disposed on a first side of the carrier and the first elastic member is disposed on a second side of the carrier and configured to urge the carrier toward the ball member. 7.The camera module of claim 5, further comprising: a second elastic member disposed between a lower portion of the carrier and the housing and configured to support the carrier in the first direction. 8.The camera module of claim 1, further comprising: a first movable body movably disposed in the carrier; a second movable body movably disposed in the first movable body and coupled to the image sensor; a first driver configured to move the second movable body in a direction orthogonal to the first direction with respect to the first movable body; a second driver configured to rotate the second movable body about an axis parallel to the first direction with respect to the first movable body; and a third driver configured to rotate the first movable body about an axis orthogonal to the first direction with respect to the carrier, wherein the third driver is disposed between the carrier and the first movable body and provides a tilt center of the first movable body with respect to the carrier. The first driver includes a first actuator disposed between the first movable body and the second movable body, and the first actuator includes a first drive magnet disposed on the second movable body and a first drive coil disposed on the first movable body to be opposite the first drive magnet in the direction orthogonal to the first direction. ​ ​ 9. The camera module of claim 8, wherein, ​ 10. The camera module of claim 9, wherein, The second driver includes a second actuator disposed between the first movable body and the second movable body, and the second actuator includes a second driving magnet disposed on the second movable body and a second driving coil disposed on the first movable body to oppose the second driving magnet in the direction orthogonal to the first direction.

11. The camera module of claim 10, wherein, The second movable body includes four side surfaces forming a quadrilateral shape, and the first driving magnet and the second driving magnet are disposed on different side surfaces among the four side surfaces.

12. The camera module of claim 11, wherein, The second movable body includes first and second side surfaces forming a corner, and the second driving magnet is disposed on one of the first and second side surfaces and adjacent to the corner.

13. The camera module of claim 10, wherein, The third driver includes a third actuator disposed between the first movable body and the carrier, and the third actuator includes a third driving magnet disposed on the second movable body and a third driving coil disposed on the carrier to oppose the third driving magnet in the first direction.

14. The camera module of claim 13, wherein, The third driving magnet is one of the first driving magnet and the second driving magnet.

15. The camera module of claim 8, further comprising: a substrate mechanically connecting the second movable body to the first movable body and deforming based on movement of the second movable body relative to the first movable body.

16. The camera module of claim 15, wherein, The substrate includes an electrical wire electrically connected to the image sensor.

17. The camera module of claim 16, wherein The substrate includes a movable portion fixedly coupled to the second movable body, a fixed portion fixedly coupled to the first movable body, and a support portion interconnecting the movable portion and the fixed portion, and wherein the support portion includes a plurality of bridges configured to have the electrical wire embedded therein.

18. The camera module of claim 17, wherein, The support portion includes a guide disposed between the movable portion and the fixed portion and connected to the movable portion and the fixed portion by the plurality of bridges.

19. A camera module, comprising: a housing; a lens barrel coupled to the housing; a carrier disposed in the housing and configured to move in a first direction; a first movable body movably disposed in the carrier; a second movable body movably coupled to the first movable body; an image sensor coupled to the second movable body and having an imaging face oriented in the first direction; and a substrate mechanically connecting the second movable body to the first movable body and configured to deform based on movement of the second movable body relative to the first movable body. The substrate includes a movable portion fixedly coupled to the second movable body, a fixed portion fixedly coupled to the first movable body, and a support portion interconnecting the movable portion and the fixed portion, 20. The camera module of claim 19, wherein, wherein the support portion includes a plurality of bridges configured to have an electrical wire electrically connected to the image sensor embedded therein. ​ 21.The camera module according to claim 19, further comprising: a first driver configured to move the second movable body relative to the first movable body in a direction orthogonal to the first direction; a second driver configured to rotate the second movable body relative to the first movable body about an axis parallel to the first direction; and a third driver configured to rotate the first movable body relative to the carrier about an axis orthogonal to the first direction, wherein the third driver includes a tilt guide ball disposed between the carrier and the first movable body and configured to provide a tilt center of the first movable body relative to the carrier. 22.A camera module comprising: a housing; a lens barrel coupled to the housing; an auto focus carrier disposed in the housing and configured to move in an optical axis direction; a tilt carrier disposed on the auto focus carrier and configured to tilt relative to a fixed body about an axis orthogonal to the optical axis direction; a movable body disposed on the tilt carrier; an image sensor coupled to the movable body; and a substrate coupled to the tilt carrier and the movable body and configured to deform based on movement of the movable body relative to the tilt carrier. the substrate includes: a movable portion on which the image sensor is disposed; 23. The camera module of claim 22, wherein, a fixed portion fixed to the tilt carrier; and a support portion connecting the movable portion to the fixed portion, wherein at least a portion of the support portion is configured to deform based on movement between the movable portion and the tilt carrier. 24.The camera module according to claim 22, further comprising a ball member disposed between the auto focus carrier and the housing and configured to move the auto focus carrier in the optical axis direction. ​ ​

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