Sensor shift module and camera module including the sensor shift module

Abstract

The present disclosure relates to a sensor shift module, which includes: a fixed body; a first movable body movably disposed in the fixed body; a second movable body movably disposed in the first movable body and coupled to an image sensor, the image sensor having an imaging surface facing a first direction; 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 fixed body about an axis orthogonal to the first direction. The present disclosure also relates to a camera module including the sensor shift module.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of priority from Korean Patent Application No. 10-2021-0159648 filed in the Korean Intellectual Property Office on November 18, 2021, the disclosure of which is incorporated herein in its entirety by reference for all purposes. Technical Field

[0003] The present disclosure relates to a method for achieving optical image stabilization by driving an image sensor. Background Art

[0004] With the development of communication technology, mobile devices such as smart phones may be widely popularized, and therefore, the functions of cameras included in the mobile devices may have a growing demand. For example, the camera included in the mobile device may be designed to provide advanced imaging functions (e.g., autofocus function, anti-shake function, etc.) implemented in a general digital single-lens reflex (DSLR) camera despite having a small size.

[0005] The optical image stabilization (OIS) function can prevent image blur when the camera shakes during the exposure time, and the OIS function may be necessary when imaging in a low-light environment where the camera shakes and the exposure time is relatively long. OIS may include digital IS (DIS), electronic IS (EIS), and optical IS (OIS). Among these functions, optical IS (OIS) can fundamentally prevent image degradation caused by shaking by correcting the optical path by moving the lens or image sensor in a direction orthogonal to the optical axis. Since a mechanical actuator is required, it may be complicated to implement it as a device, and although excellent compensation performance can be obtained, the associated cost is expensive.

[0006] The lens barrel may include an optical system therein, so that a relatively large amount of force may be required to drive the lens barrel. Since the image sensor is relatively light, it can advantageously achieve an excellent optical image stabilization (OIS) function even with a relatively small amount of force.

[0007] Cameras used in mobile devices may primarily provide a shake correction function that only prevents shake in a direction orthogonal to the optical axis when acquiring images. Mobile devices may be used to acquire video, and therefore, it is necessary to move the image sensor in more different directions to correct shake in a more dynamic environment.

[0008] The above information is presented as background information only to assist with an understanding of the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with respect to the present disclosure. Summary of the invention

[0009] The purpose of providing this summary is to introduce a selection of inventive concepts in a concise form, and these inventive concepts will be further described in the following detailed description. This summary is not intended to identify the key features or essential features of the subject matter claimed, nor is it intended to help determine the scope of the subject matter claimed.

[0010] In a general aspect, a sensor shift module includes: a fixed body; a first movable body movably disposed in the fixed body; a second movable body movably disposed in the first movable body and connected to an image sensor, the image sensor having an imaging surface facing a first direction; a first driver configured to move the second movable body in a direction orthogonal to the first direction relative to the first movable body; a second driver configured to rotate the second movable body around an axis parallel to the first direction relative to the first movable body; and a third driver configured to rotate the first movable body around an axis orthogonal to the first direction relative to the fixed body, wherein the third driver includes a tilt guide ball disposed between the fixed body and the first movable body to provide a tilt center for the first movable body.

[0011] The first driver may include a first actuator arranged between the first movable body and the second movable body, and the first actuator may include a first driving magnet arranged on the second movable body and a first driving coil arranged on the first movable body to be opposite to the first driving magnet in a direction orthogonal to the first direction.

[0012] The second driver may include a second actuator arranged between the first movable body and the second movable body, and the second actuator may include a second driving magnet arranged on the second movable body and a second driving coil arranged on the first movable body to be opposite to the second driving magnet in a direction orthogonal to the first direction.

[0013] The second movable body may have four side surfaces forming a quadrangular shape, and the first driving magnet and the second driving magnet may be provided on different side surfaces among the four side surfaces.

[0014] The second movable body may have a first side surface and a second side surface forming a corner, and the second driving magnet may be disposed on the first side surface or the second side surface and may be disposed adjacent to the corner.

[0015] The third driver may include a third actuator disposed between the first movable body and the fixed body, and the third actuator may include a third driving magnet disposed on the second movable body and a third driving coil disposed on the fixed body to oppose the third driving magnet in the first direction.

[0016] The third driving magnet may be the first driving magnet or the second driving magnet.

[0017] The third driver may include first and second magnetic members that are respectively provided on the fixed body and the first movable body and are opposite to each other in the first direction.

[0018] The sensor shift module may further include a substrate which mechanically connects the second movable body to the first movable body and is deformed according to movement of the second movable body relative to the first movable body.

[0019] The substrate may include wires electrically connected to the image sensor.

[0020] The substrate may include a movable portion fixedly connected to the second movable body, a fixed portion fixedly connected to the first movable body, and a supporting portion interconnecting the movable portion and the fixed portion, and the supporting portion may include a plurality of bridges having wires embedded therein.

[0021] The support portion may include a guide member disposed between the movable portion and the fixed portion and connected to the movable portion and the fixed portion through a plurality of bridge members.

[0022] The camera module may include a sensor shift module and a lens module, the lens module including at least one lens, wherein light incident through the at least one lens falls on an imaging surface.

[0023] In another general aspect, a camera module includes a lens module and a sensor shift module, the lens module including at least one lens, wherein the sensor shift module includes: a fixed body; a first movable body movably disposed in the fixed body; a second movable body movably disposed in the first movable body and connected to an image sensor, the image sensor having an imaging surface facing a first direction; a first driver configured to move the second movable body in a direction orthogonal to the first direction relative to the first movable body; a second driver configured to rotate the second movable body around an axis parallel to the first direction relative to the first movable body; a third driver configured to rotate the first movable body around an axis orthogonal to the first direction relative to the fixed body; and a substrate mechanically connecting the second movable body to the first movable body and deforming according to the movement of the second movable body relative to the first movable body.

[0024] The substrate may include a movable portion fixedly connected to a second movable body, a fixed portion fixedly connected to a first movable body, and a supporting portion interconnecting the movable portion and the fixed portion, and the supporting portion may include a plurality of bridge members having wires embedded therein and electrically connected to the image sensor.

[0025] The third driver may include a third actuator disposed between the first movable body and the fixed body, and the third actuator may include a third driving magnet disposed on the second movable body and a third driving coil disposed on the fixed body to oppose the third driving magnet in the first direction.

[0026] The first driver or the second driver may include a driving coil and a driving magnet that are opposite to each other in a direction orthogonal to the first direction, and the driving magnet may be a third driving magnet.

[0027] In another general aspect, a sensor shift module includes: a first movable body; a second movable body disposed on the first movable body; an image sensor disposed on the second movable body and including an imaging surface facing a first direction; a first driver configured to translate 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 around an axis parallel to the first direction; and a third driver configured to rotate the first movable body relative to a fixed body around an axis orthogonal to the first direction.

[0028] The sensor shift module may also include: a tilt guide ball, arranged between the first movable body and the fixed body, wherein the first movable body can be configured to rotate on the tilt guide ball around an axis orthogonal to the first direction; and a substrate, mechanically connecting the second movable body to the first movable body and deforming according to the movement of the second movable body relative to the first movable body.

[0029] The camera module may include a sensor shift module and a lens module, the lens module including at least one lens, wherein light incident through the at least one lens may fall on an imaging surface in a first direction.

[0030] Other features and aspects will become apparent from the appended claims, the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a diagram illustrating components included in a camera module according to an exemplary embodiment of the present disclosure.

[0032] Figure 2A is a diagram illustrating a sensor shift module according to an exemplary embodiment of the present disclosure.

[0033] Figure 2B is a diagram illustrating an actuator included in an OIS driving unit according to an exemplary embodiment of the present disclosure.

[0034] Figure 2C is a diagram illustrating a traction device between a first movable body and a fixed body according to an exemplary embodiment of the present disclosure.

[0035] Figure 3 is a diagram showing a substrate on which an image sensor is mounted according to an exemplary embodiment of the present disclosure, viewed from above.

[0036] Figure 4A and Figure 4B is a diagram illustrating an arrangement of a first OIS driver and a second OIS driver according to an exemplary embodiment of the present disclosure.

[0037] Figure 5A and Figure 5B is a diagram showing movement of the second movable body due to the first OIS driver.

[0038] Fig. 6A and Figure 6B is a diagram showing rolling of the second movable body due to the second OIS driver.

[0039] Fig. 7A and Figure 7B is a diagram showing the inclination of the first movable body due to the third OIS driver.

[0040] Fig. 8A , Figure 8B , Figure 8C and Fig.8D : is a diagram showing deformation of the substrate according to the movement of the second movable body.

[0041] Throughout the drawings and detailed description, 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 sizes, proportions, and depictions of elements in the drawings may be exaggerated. DETAILED DESCRIPTION

[0042] Hereinafter, although exemplary embodiments of the present disclosure will be described in detail as follows with reference to the accompanying drawings, it should be noted that examples are not limited thereto.

[0043] The following specific embodiments are provided to help the reader gain a comprehensive understanding of the methods, devices and / or systems described herein. However, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent after understanding the present disclosure. For example, the order of operations described herein is merely an example, and except for operations that must occur in a particular order, it is not limited to the order set forth herein, but can be changed, which will be apparent after understanding the present disclosure. In addition, for greater clarity and brevity, descriptions of features known in the art may be omitted.

[0044] 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 to implement the methods, devices, and / or systems described herein that will be apparent after understanding the present disclosure.

[0045] It should be noted that in this document, the use of the word "may" with respect to examples or embodiments, such as regarding what an example or embodiment may include or implement, means that there is at least one example or embodiment that includes or implements such features, and all examples and embodiments are not limited thereto.

[0046] Throughout the specification, when an element such as a layer, a region, or a substrate is described as being “on,” “connected to,” or “coupled to” another element, the element may be directly “on,” “connected to,” or “coupled to” the other element, or one or more other elements may be present between the element and the other element. Conversely, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, no other elements may be present between the element and the other element.

[0047] 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.

[0048] Although terms such as "first", "second" and "third" may be used herein to describe various members, components, regions, layers or portions, these members, components, regions, layers or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer or portion from another member, component, region, layer or portion. Therefore, without departing from the teachings of the examples described herein, the first member, first component, first region, first layer or first portion mentioned in these examples may also be referred to as the second member, second component, second region, second layer or second portion.

[0049] Spatially relative terms such as "above", "higher", "below", "lower", etc. may be used herein for descriptive convenience to describe the relationship of one element relative to another element as shown in the accompanying drawings. In addition to covering the orientations depicted in the accompanying drawings, these spatially relative terms are intended to also cover different orientations of the device in use or operation. For example, if the device in the accompanying drawings is flipped, an element described as being "above" or "higher" relative to another element will be "below" or "lower" relative to the other element. Therefore, 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 spatially relative terms used herein should be interpreted accordingly.

[0050] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the articles "a", "an" and "the" are intended to include plural forms as well. The words "include", "comprise" and "have" indicate the presence of the features, numbers, operations, components, elements and / or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, operations, components, elements and / or combinations thereof.

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

[0052] In the exemplary embodiment, in the drawings, the X direction, the Y direction, and the Z direction may refer to a direction parallel to the X axis, a direction parallel to the Y axis, and a direction parallel to the Z axis, respectively. In addition, unless otherwise specified, the X direction may include a +X axis direction and a -X axis direction, which may also apply to the Y direction and the Z direction.

[0053] In an exemplary embodiment, two directions (or axes) parallel to each other may also include examples in which the two directions (or axes) are substantially parallel to each other or substantially side by side with each other. In an exemplary embodiment, two directions orthogonal to each other may also include examples in which the two directions (or axes) are substantially perpendicular to each other or substantially at 90 degrees to each other. For example, a configuration in which a first axis and a second axis are orthogonal to each other may mean that the first axis and the second axis may form an angle of 90 degrees or close to 90 degrees.

[0054] "Exemplary embodiments" do not necessarily refer to the same exemplary embodiments. The particular features, structures, or characteristics may be combined in any suitable manner consistent with the exemplary embodiments.

[0055] In exemplary embodiments, “configured to” may mean that a component may include structures necessary for realizing the function.

[0056] The features of the examples described herein may be combined in various ways that will be apparent after gaining an understanding of the present disclosure. In addition, although the examples described herein have various configurations, other configurations that will be apparent after gaining an understanding of the present disclosure are also possible.

[0057] One or more exemplary embodiments of the present disclosure may enable a camera to provide an effective optical image stabilization function with low power, and may provide an improved shake correction function by driving an image sensor in different directions.

[0058] 1. Camera module

[0059] Figure 1 is a diagram illustrating components included in a camera module 1 according to an exemplary embodiment.

[0060] In an exemplary embodiment, the camera module 1 may include a lens module 20 and an image sensor 11, the lens module 20 including at least one lens 21 and a lens barrel 22 accommodating the at least one lens 21. The light L may pass through the lens module 20 and may reach the imaging surface of the image sensor 11. The camera module 1 may include an AF driver 23, which may move the lens module 20 in the optical axis direction to adjust the focal length. The AF driver 23 may include, for example, a coil and a magnet that are opposite to each other. The coil may be fixedly coupled to the lens module 20, the magnet may be coupled to a fixed body such as a housing, and the electromagnetic interaction between the coil and the magnet may move the lens module 20 in the optical axis direction.

[0061] In an exemplary embodiment, the camera module 1 may provide an optical image stabilization (hereinafter referred to as "OIS") function. The camera module 1 may provide the OIS function by driving the image sensor 11. For example, the camera module 1 may include an OIS driver 12 configured to move the image sensor 11 in a direction orthogonal to the optical axis and / or rotate the image sensor 11 around an axis parallel to the optical axis and / or around an axis orthogonal to the optical axis.

[0062] In an exemplary embodiment, the camera module 1 may include a sensor shift module 10. The sensor shift module 10 may include components necessary to implement an OIS function by driving an image sensor 11. For example, the sensor shift module 10 may include an image sensor 11 and an OIS driver 12 for driving the image sensor 11. As another example, the sensor shift module 10 may refer to only the OIS driver 12 in addition to the image sensor 11.

[0063] In an exemplary embodiment, the camera module 1 may further include an optical element in addition to the lens module 20 and the image sensor 11. In an exemplary embodiment, the camera module 1 may include two or more lens modules. For example, the first optical element 30 and / or the second optical element 40 may be a lens module different from the lens module 20.

[0064] In an exemplary embodiment, the camera module 1 may include an optical path changing element disposed in front of the lens module 20. For example, the first optical element 30 may be implemented as a prism or a reflector. In another exemplary embodiment, the optical path changing element may be disposed between the image sensor 11 and the lens module 20. For example, the second optical element 40 may be implemented as a prism or a reflector.

[0065] In the following, reference FIG. 2A to FIG. 8D The sensor displacement module 100 described can be applied to Figure 1 The camera module 1 in.

[0066] 2. Sensor displacement

[0067] Figure 2A is a diagram illustrating a sensor shift module 100 according to an exemplary embodiment. Figure 2B is a diagram illustrating an actuator included in an OIS driver according to an exemplary embodiment. Figure 2C is a diagram illustrating a traction device between a first movable body and a fixed body according to an exemplary embodiment.

[0068] The sensor shift module 100 may include an OIS driver. The OIS driver may include at least one of a first OIS driver, a second OIS driver, and a third OIS driver to be described later. The first OIS driver may move the image sensor 111 in a direction orthogonal to the optical axis, the second OIS driver may rotate the image sensor 111 around an axis parallel to the optical axis, and the third OIS driver may rotate the image sensor 111 around an axis orthogonal to the optical axis.

[0069] Figure 1 The OIS driver 12 of the camera module 1 may include at least one of a first OIS driver, a second OIS driver, and a third OIS driver.

[0070] 2.1. Pan + Roll OIS

[0071] 2.1.1. Structure

[0072] The sensor shift module 100 may include a first OIS driver for driving the image sensor 111. In an exemplary embodiment, the sensor shift module 100 may include a second movable body 110 including the image sensor 111 and a first movable body 130 carrying the second movable body 110. The second movable body 110 may be movably disposed in the first movable body 130. The second movable body 110 may be configured to move together with the image sensor 111. For example, the second movable body 110 may 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 may be moved relative to the first movable body 130 in a direction orthogonal to the optical axis by the first OIS driver.

[0073] Reference Figure 2A The sensor bracket 113 may include a plate 113a connected to the lower portion of the sensor substrate 112 and an extension portion 113b extending from the edge of the plate 113a to the upper portion (in the +Z direction). The extension portion 113b may be opposite to the coils 122 and 152, and the magnets 121, 151, and 161 may be placed on the extension portion 113b.

[0074] The signal of the image sensor 111 may be transmitted to another electronic component (eg, an image signal processor (ISP)) through the sensor substrate 112 and a connector.

[0075] The first movable body 130 may include a base 131 and a member fixedly connected to the base 131. For example, the first movable body 130 may include a driving magnet 121 of a first OIS driver and a driving magnet 151 of a second OIS driver, which will be described later.

[0076] In an exemplary embodiment, the sensor shift module 100 may include a first OIS driver for moving the image sensor 111 in a direction orthogonal to the optical axis O. The second movable body 110 may be moved relative to the first movable body 130 in a direction orthogonal to the direction to which the imaging surface 111a of the image sensor 111 points by the first OIS driver. In an exemplary embodiment, the first OIS driver may correct the jitter 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 may 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 may intersect each other. For example, when the optical axis O is in the Z direction, the first OIS driver may move the second movable body 110 in an X direction and / or a Y direction orthogonal to the Z axis (optical axis direction), thereby correcting the jitter in the X direction and / or the Y direction.

[0077] In an exemplary embodiment, the direction to which the imaging surface 111a of the image sensor 111 points may be referred to as the optical axis O direction. That is, the second movable body 110 may be movable relative to the first movable body 130 in a direction orthogonal to the optical axis O. In the drawings, the optical axis O may be parallel to the Z axis, and therefore, the Z direction may refer to a direction parallel to the optical axis O. In addition, the X direction or the Y direction may refer to a direction orthogonal to the optical axis O. For example, in an exemplary embodiment, a configuration in which the second movable body 110 moves in the X direction may mean that the second movable body 110 may move in a direction orthogonal to the optical axis O. For another example, a configuration in which the driving magnet 121 and the driving coil 122 are opposite to each other in the X direction may mean that the driving magnet 121 and the driving coil 122 are opposite to each other in a direction orthogonal to the optical axis O. In addition, the X direction and the Y direction may be examples of two directions orthogonal to the optical axis and intersecting each other, and in an exemplary embodiment, the X direction and the Y direction may be configured as two directions orthogonal to the optical axis O and intersecting each other.

[0078] In an exemplary embodiment, the sensor shift module 100 may include a second OIS driver for rotating the image sensor 111 around an axis parallel to the optical axis O. The second movable body 110 may be rotated relative to the first movable body 130 by the second OIS driver around an axis parallel to the direction in which the imaging surface 111a of the image sensor 111 points. In an exemplary embodiment, the second OIS driver may correct the rotation of the camera module 1 or the electronic device on which the image sensor 111 is mounted around an axis parallel to the optical axis O.

[0079] 2.1.2 First Actuator (Translation)

[0080] Reference Figure 2A and Figure 2B In an exemplary embodiment, the first OIS driver may include a first actuator 120 disposed between the first movable body 130 and the second movable body 110. In an exemplary embodiment, the first actuator 120 may 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 exemplary embodiment, the first driving coil 122 and the first driving magnet 121 may be respectively coupled to the base 131 and the sensor bracket 113. The first driving magnet 121 and the first driving coil 122 may be opposite to each other in a direction (e.g., X direction or Y direction) orthogonal to the optical axis O. The electromagnetic interaction between the first driving magnet 121 and the first driving coil 122 may move the second movable body 110 in a direction orthogonal to the optical axis O relative to the first movable body 130.

[0081] The first OIS driver may include a plurality of first actuators 120, and each of the first actuators 120 may include a first driving magnet 121 and a first driving coil 122. For example, the first OIS driver may 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. Figure 2B , the 1-1 actuator 120 - 1 may include a 1-1 driving magnet 121 - 1 and a 1-1 driving coil 122 - 1 . The 1-2 actuator 120 - 2 may include a 1-2 driving magnet 121 - 2 and a 1-2 driving coil 122 - 2 .

[0082] In an exemplary embodiment, the first OIS driver may further include a yoke 123 disposed on one side of the first drive magnet 121 and / or the first drive coil 122. The yoke 123 attached to one side of the first drive coil 122 may concentrate the magnetic field generated by the first drive coil 122 in a direction toward the first drive magnet 121. Since the yoke 123 is disposed on one side of the first drive coil 122, the magnetic field generated by the first drive coil 122 may be prevented from affecting other electronic components, or the effect of the magnetic field on other electronic components may be reduced. The yoke 123 attached to one side of the first drive magnet 121 may concentrate the magnetic field generated by the first drive magnet 121 in a direction toward the first drive coil 122.

[0083] In an exemplary embodiment, the first drive coil 122 and the first drive magnet 121 may be coupled to the first movable body 130 and the second movable body 110, respectively, but the exemplary embodiment thereof is not limited thereto. In another exemplary embodiment, the first drive coil 122 and the first drive magnet 121 may be coupled to the second movable body 110 and the first movable body 130, respectively. For example, the first drive coil 122 and the first drive magnet 121 may be coupled to the sensor bracket 113 and the base 131, respectively.

[0084] 2.1.3 Second Actuator (Rolling)

[0085] Reference Figure 2A and Figure 2B In an exemplary embodiment, the second OIS driver may 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 may 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 driving coil 152 and the second driving magnet 151 may be respectively coupled to the base 131 and the sensor bracket 113. The second driving magnet 151 and the second driving coil 152 may be opposite to each other in a direction orthogonal to the optical axis O. The electromagnetic interaction between the second driving magnet 151 and the second driving coil 152 may rotate the second movable body 110 around an axis parallel to the optical axis O relative to the first movable body 130.

[0086] The second OIS driver may include a plurality of second actuators 150, and each of the second actuators 150 may include a second driving magnet 151 and a second driving coil 152. For example, the second OIS driver may include a 2-1 actuator 150-1 disposed on the third side surface 110a-3 of the second movable body 110 and a 2-2 actuator 150-2 disposed on the fourth side surface 110a-4 of the second movable body 110. Figure 2B , the 2-1 actuator 150 - 1 may include a 2-1 driving magnet 151 - 1 and a 2-1 driving coil 152 - 1 . The 2-2 actuator 150 - 2 may include a 2-2 driving magnet 151 - 2 and a 2-2 driving coil 152 - 2 .

[0087] 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 may allow the magnetic field generated by the second drive coil 152 to be concentrated in a direction toward the second drive magnet 151. Since the yoke 153 is disposed on one side of the second drive coil 152, the magnetic field generated by the second drive coil 152 may be prevented from affecting other electronic components, or the effect of the magnetic field on other electronic components may be reduced. The yoke 153 attached to one side of the second drive magnet 151 may allow the magnetic field generated by the second drive magnet 151 to be concentrated in a direction toward the second drive coil 152.

[0088] In an exemplary embodiment, the second driving coil 152 and the second driving magnet 151 may be coupled to the first movable body 130 and the second movable body 110, respectively, but the exemplary embodiment thereof is not limited thereto. In another exemplary embodiment, the second driving coil 152 and the second driving magnet 151 may be coupled to the second movable body 110 and the first movable body 130, respectively. For example, the second driving coil 152 and the second driving magnet 151 may be coupled to the sensor bracket 113 and the base 131, respectively.

[0089] 2.1.4.PCB spring

[0090] In an exemplary embodiment, the sensor shift module 100 may include a substrate 140 that mechanically connects the second movable body 110 to the first movable body 130. The substrate 140 may couple the second movable body 110 to the first movable body 130 so that the second movable body 110 may move relative to the first movable body 130 on a plane orthogonal to the optical axis. A portion of the substrate 140 may be deformed according to the movement of the second movable body 110 relative to the first movable body 130. That is, a portion of the substrate 140 may be flexible. When the substrate 140 is deformed, a restoring force may be generated in the substrate 140, and the restoring force may allow the second movable body 110 to return to an initial position. When current is applied to the first drive coil 122 or the second drive coil 152, the second movable body 110 in a balanced state may move relative to the first movable body 130, and when no current flows through the first drive coil 122 and the second drive coil 152, the second movable body 110 may return to an initial position through the substrate 140.

[0091] Figure 3 is a diagram showing a substrate on which an image sensor may be mounted according to an exemplary embodiment, as viewed from above. FIG. 2A to FIG. 2C and Figure 3 , the substrate 140 may include a movable portion 141 (floating portion) on which the sensor substrate 112 is mounted and a fixed portion 142 fixed to the first movable body 130. The sensor substrate 112 and the movable portion 141 may be electrically connected to each other through solder balls at corresponding contact points P1 and P2.

[0092] When the second movable body 110 (or the image sensor 111) moves relative to the first movable body 130, the movable part 141 may move relative to the fixed part 142. The substrate 140 may include a support part 143 connecting the movable part 141 to the fixed part 142. At least a portion of the support part 143 may be deformed according to the relative movement between the movable part 141 and the first movable body 130. For example, the support part 143 may be configured as a flexible substrate. The flexible substrate may be provided in the form of a conductive pattern (or wire 145) formed in a film formed of a polyimide material.

[0093] In an exemplary embodiment, the substrate 140 may include a plurality of bridging elements 144 connecting the movable portion 141 to the fixed portion 142. The plurality of bridging elements 144 may be included in at least a portion of the support portion 143. The plurality of bridging elements 144 may be formed of a flexible material so that when the movable portion 141 moves relative to the fixed portion 142, the plurality of bridging elements 144 may be deformed. When the second movable body 110 moves relative to the first movable body 130, the movable portion 141 may move relative to the fixed portion 142, and the bridging elements 144 may be deformed. The restoring force generated when the bridging element 144 is deformed may 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 may include at least one wire 145. That is, the plurality of bridging elements 144 may 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 bridge element 144 may support the image sensor 111 and may serve as a passage through which a signal of the image sensor 111 is transmitted.

[0094] In an exemplary embodiment, the substrate 140 may include a guide 146 disposed between the movable portion 141 and the fixed portion 142. For example, the guide 146 may be disposed in the form of a picture frame surrounding the movable portion 141. The fixed portion 142, the guide 146, and the movable portion 141 may be connected to each other by a bridging element 144. For example, the substrate 140 may include a first bridge 147 extending from the guide 146 to the fixed portion 142 and a second bridge 148 extending from the movable portion 141 to the guide 146. The first bridge 147 and the second bridge 148 may extend in a direction orthogonal to the optical axis. The first bridge 147 and the second bridge 148 may extend in directions intersecting each other. For example, the first bridge 147 may extend in the Y direction, and the second bridge 148 may extend in the X direction.

[0095] Each of the first bridge 147 and the second bridge 148 may include one or more bridge elements 144. Figure 3 In the embodiment of the present invention, the first bridge 147 may include four bridge elements 144 extending in the Y direction, and the second bridge 148 may include four bridge elements 144 extending in the X direction. Figure 3The substrate 140 in the embodiment may be an example, and the shape of the support portion 143 connecting the movable portion 141 to the fixed portion 142 may be changed. For example, the support portion 143 may include a plurality of bridging 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 may include five bridging elements 144. The number of bridging elements 144 included in the first bridge 147 or the second bridge 148 may correspond to the number corresponding to the terminals of the image sensor 111.

[0096] The substrate 140 may include a wire 145 for transmitting a signal of the image sensor 111. A plurality of bridging elements 144 included in the support portion 143 may embed the wire 145 therein. The image sensor 111 may be mounted on the sensor substrate 112, and the sensor substrate 112 may be electrically connected to the fixed portion 142 of the substrate 140. The wire 145 (electrical trace) may extend from each contact point P2 formed in the movable portion 141. The wire 145 may extend to the fixed portion 142 through the bridging element 144. The wire 145 extending to the fixed portion 142 may be electrically connected to another substrate or an electronic component.

[0097] Figure 3 The electric wire 145 formed on the substrate 140 is shown, and for convenience of description, only the electric wire 145 extending from a portion of the contact point P2 is shown.

[0098] In an exemplary embodiment, the first OIS driver may include a first position sensor that can measure how much the second movable body 110 has moved in a direction orthogonal to the optical axis O. The first position sensor may be configured as a Hall sensor or a magnetoresistive sensor. In an exemplary embodiment, the first position sensor may be disposed in the first drive coil 122 to be opposite to the first drive magnet 121. The inner portion of the coil may refer to an empty space corresponding to the winding center of the coil. In another exemplary embodiment, the first OIS driver may include a sensing magnet different from the first drive magnet 121, and the first position sensor may be disposed opposite to the sensing magnet. For example, the first position sensor and the sensing magnet may be disposed opposite to the base 131 or the substrate 140 in the direction of the optical axis (in the Z direction).

[0099] In an exemplary embodiment, the second OIS driver may include a second position sensor that can measure how much the second movable body 110 rotates around an axis parallel to the optical axis O. The second position sensor may be configured as a Hall sensor or a magnetoresistive sensor. In an exemplary embodiment, the second position sensor may be disposed in the second drive coil 152 to be opposite to the second drive magnet 151. In another exemplary embodiment, the second OIS driver may include a sensing magnet different from the second drive magnet 151, and the second position sensor may be disposed opposite to the sensing magnet. For example, the second position sensor and the sensing magnet may be disposed opposite to the base 131 or the substrate 140 in the optical axis direction (in the Z direction).

[0100] The second position sensor may be the same component as the first position sensor. That is, one position sensor may be used to measure both the translational movement (movement by the first OIS driver) and the rotational movement (movement by the second OIS driver) of the second movable body.

[0101] 2.1.4. Actuator arrangement

[0102] Figure 4A and Figure 4B is a diagram illustrating an arrangement of a first OIS driver and a second OIS driver according to an exemplary embodiment.

[0103] Reference Figure 2B , Figure 4A and Figure 4B , the second movable body 110 may 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 may form a corner.

[0104] The second movable body 110 may 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. The first corner 110b-1 may be formed between the first side surface 110a-1 and the second side surface 110a-2, the second corner 110b-2 may be formed between the second side surface 110a-2 and the third side surface 110a-3, the third corner 110b-3 may be formed between the third side surface 110a-3 and the fourth side surface 110a-4, and the fourth corner 110b-4 may 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 may be a side surface of the sensor bracket 113.

[0105] In an exemplary embodiment, the four side surfaces 110a - 1 , 110a - 2 , 110a - 3 , 110a - 4 may be parallel to the horizontal side 111b or the vertical side 111c of the image sensor 111 , and the four corners 110b may be disposed in diagonal directions D1 and D2 of the image sensor 111 .

[0106] The first actuator 120 and the second actuator 150 may be disposed on different side surfaces 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 may 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.

[0107] Reference Figure 4A and Figure 4B , the second actuator 150 included in the second OIS driver may 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 may be effectively rotated.

[0108] Reference Figure 4A , the 1-1 actuator 120-1 and the 1-2 actuator 120-2 included in the first OIS driver may be disposed at the center of the first side surface 110a-1 and the second side surface 110a-2. The 2-1 actuator 150-1 and the 2-2 actuator 150-2 included in the second OIS driver may 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 may be disposed adjacent to the second corner 110b-2 and the third corner 110b-3, respectively.

[0109] Reference Figure 4B , the 2-1 actuator 150-1 and the 2-2 actuator 150-2 included in the second OIS driver may 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 may be disposed adjacent to the third corner 110b-3 and the fourth corner 110b-4, respectively.

[0110] 2.2. Tilt OIS

[0111] 2.2.1. Structure

[0112] Reference Figure 2A, the sensor shift module 100 may include a third OIS driver. The sensor shift module 100 may include a third OIS driver for moving the first movable body 130 relative to the fixed body 170. The third OIS driver may be 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 about the first axis A1 or the second axis A2 in the optical axis O. The shake correction can be achieved by translating the image sensor 111 in a direction orthogonal to the optical axis O, but since the mobile camera has a relatively small size, the range of the translation movement may be relatively small, and therefore, when the degree of shake is relatively large, the correction amount may not reach the amount of shake. The third OIS driver can correct the shake by tilting the image sensor 111, and can provide a shake correction function of excellent quality even for relatively large shake.

[0113] The first movable body 130 may be movably disposed in the fixed body 170. The first movable body 130 may be moved relative to the fixed body 170 by a third OIS driver. The image sensor 111 may be coupled to the first movable body 130. The image sensor 111 may be movably coupled to the first movable body 130. For example, the image sensor 111 may be coupled to the second movable body 110, and the second movable body 110 may be movably coupled to the first movable body 130. The second movable body 110 may be moved relative to the first movable body 130 by the first OIS driver and / or the second OIS driver.

[0114] 2.2.2. Third actuator (tilt)

[0115] 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 driving magnet 161 coupled to the first movable body 130 or the second movable body 110 and a third driving coil 162 coupled to the fixed body 170 to be opposite to the third driving magnet 161.

[0116] 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 driving magnet 161 and / or the third driving coil 162.

[0117] In an exemplary embodiment, the third driving magnet 161 may 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 may 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 may be used as the third driving magnet 161. Therefore, the component described as the third driving magnet 161 in the exemplary embodiment may be understood as the first driving magnet 121 or the second driving magnet 151.

[0118] The third OIS driver may include a plurality of third actuators 160, and each of the third actuators 160 may include a third driving magnet 161 and a third driving coil 162. For example, the third OIS driver may 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.

[0119] In an exemplary embodiment, the third actuator 160 may 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.

[0120] Reference Figure 2B , the 3-1 actuator 160-1 may include a 3-1 driving magnet 161-1 and a 3-1 driving coil 162-1. The 3-2 actuator 160-2 may include a 3-2 driving magnet 161-2 and a 3-2 driving coil 162-2. The 3-3 actuator 160-3 may include a 3-3 driving magnet 161-3 and a 3-3 driving coil 162-3. The 3-4 actuator 160-4 may include a 3-4 driving magnet 161-4 and a 3-4 driving coil 162-4.

[0121] 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 arranged to be opposite to 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.

[0122] The third OIS driver may rotate the first movable body 130 around the first axis A1 and the second axis A2. The first axis A1 and the second axis A2 may be orthogonal to the optical axis and may intersect each other. For example, the first axis A1 may be parallel to the Y axis, and the second axis A2 may be parallel to the X axis.

[0123] The 3-1 actuator 160-1 or the 3-3 actuator 160-3 can provide a torque to the first movable body 130 in the direction of the first axis A1. 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 relative 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 relative to the fixed body 170 about the first axis A1 orthogonal to the optical axis.

[0124] The 3-2 actuator 160-2 and the 3-4 actuator 160-4 can provide a torque to the first movable body 130 in the direction of the second axis A2. When a current is applied to the 3-2 drive coil 162-2, an attractive force or a repulsive force can be generated between the 3-2 drive coil 162-2 and the 1-2 drive magnet 121-2, so that the first movable body 130 can be tilted relative to the fixed body 170 about the second axis A2 orthogonal to the optical axis. When a current is applied to the 3-4 drive coil 162-4, an attractive force or a repulsive force can be generated between the 3-4 drive coil 162-4 and the 2-2 drive magnet 151-2, so that the first movable body 130 can be tilted relative to the fixed body 170 about the second axis A2 orthogonal to the optical axis.

[0125] In an exemplary embodiment, a portion of the 3-1 drive coil 162-1, the 3-2 drive coil 162-2, the 3-3 drive coil 162-3, or the 3-4 drive coil 162-4 may not be provided. In an exemplary embodiment, one of the 3-1 actuator 160-1 and the 3-3 actuator 160-3 that provide a torque in the Y direction may not be provided. In an exemplary embodiment, one of the 3-2 actuator 160-2 and the 3-4 actuator 160-4 that provide a torque in the X direction may not be provided. For example, the third OIS driver may include only the 3-1 actuator 160-1 and the 3-2 actuator 160-2. As another example, the third OIS driver may include only the 3-3 actuator 160-3 and the 3-4 actuator 160-4.

[0126] Meanwhile, in the drawings, the first driving magnet 121 and the second driving magnet 151 included in a portion of the first OIS driver and the second OIS driver may be coupled to the first movable body 130, or alternatively may be coupled to the second movable body 110. In this case, the third driving coil 162 may be disposed opposite to the first driving magnet 121 and the second driving magnet 151 coupled to the second movable body 110.

[0127] 2.2.3. Ball guide

[0128] In an exemplary embodiment, the third OIS driver may include a tilt guide ball 164 disposed between the fixed body 170 and the first movable body 130. The tilt guide ball 164 may provide a tilt center of the first movable body 130 relative to the fixed body 170. For example, the first movable body 130 may be tilted around the tilt guide ball 164. The lower surface of the first movable body 130 and the bottom surface of the fixed body 170 may be opposite to each other in the optical axis O direction, and grooves for accommodating a portion of the tilt guide ball 164 may be formed in the lower surface of the first movable body 130 and the bottom surface of the fixed body 170, respectively.

[0129] 2.2.4. Traction

[0130] Figure 2C An upper surface of the fixed body and a lower surface of the first movable body in the exemplary embodiment are shown.

[0131] Reference Figure 2A and Figure 2C In an exemplary embodiment, the third OIS driver may include traction devices respectively provided on the fixed body 170 and the first movable body 130 and opposite to each other in a direction parallel to the optical axis O. The traction device may include a first magnetic member 165 and a second magnetic member 166. Magnetic attraction may be generated between the first magnetic member 165 and the second magnetic member 166, so that the first movable body 130 may be pulled to the bottom surface of the fixed body 170. Therefore, the tilt guide ball 164 may be kept in contact with the first movable body 130 and the fixed body 170, so that the first movable body 130 may be smoothly tilted relative to the fixed body 170.

[0132] One of the first magnetic member 165 and the second magnetic member 166 may be a magnet, and the other may be a magnet or a yoke. For example, the first magnetic member 165 may be a magnet, and the second magnetic member 166 may be a yoke.

[0133] Reference Figure 2C , a plurality of first magnetic members 165 and a plurality of second magnetic members 166 corresponding to the plurality of first magnetic members 165 may be arranged around the inclined guide ball 164 .

[0134] In an exemplary embodiment, the third OIS driver may include a third position sensor configured to measure the tilt amount of the first movable body 130. The third position sensor may be configured as a Hall sensor or a magnetoresistive sensor.

[0135] In an exemplary embodiment, the third position sensor may be disposed in the third driving coil 162 , and may be opposite to the first driving magnet 121 or the second driving magnet 151 .

[0136] In an exemplary embodiment, the third OIS driver may 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 may be a magnet, and the other may be a yoke, and the magnetic member as a magnet may be used as a sensing magnet. For example, referring to Figure 2A , the first magnetic member 165 may be a magnet, the second magnetic member 166 may be a yoke, the second magnetic member 166 may include a through portion therein, and the third position sensor may be disposed in the through portion.

[0137] 2.3. Exercise

[0138] 2.3.1. Translational motion

[0139] Figure 5A and Figure 5B is a diagram showing the movement of the second movable body 110 due to the first OIS driver.

[0140] Reference Figure 5A , the 1-1 actuator 120-1 can move the second movable body 110 in the X direction relative to the first movable body 130. When 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 be moved in the -X direction or the +X direction.

[0141] Reference Figure 5B , the 1-2 actuator 120-2 can move the second movable body 110 in the Y direction relative to the first movable body 130. When 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 be moved in the -Y direction or the +Y direction.

[0142] 2.3.2. Rolling motion

[0143] Fig. 6A and Figure 6B is a diagram showing the rolling of the second movable body 110 due to the second OIS driver.

[0144] Reference Fig. 6A , the 2-1 actuator 150-1 and the 2-2 actuator 150-2 may rotate the second movable body 110 in the counterclockwise direction relative to the first movable body 130. The 2-1 actuator 150-1 and the 2-2 actuator 150-2 may provide a torque to the second movable body 110 in the counterclockwise direction. For example, a Lorentz force may be generated between the 2-1 driving magnet 151-1 and the 2-1 driving coil 152-1, and thus, a force F1 may act on the 2-1 driving magnet 151-1. A Lorentz force may be generated between the 2-2 driving magnet 151-2 and the 2-2 driving coil 152-2, and thus, a force F2 may act on the 2-2 driving magnet 151-2. The forces F1 and F2 may rotate the second movable body 110 in the counterclockwise direction.

[0145] Reference Figure 6B , the 2-1 actuator 150-1 and the 2-2 actuator 150-2 may rotate the second movable body 110 in the clockwise direction relative to the first movable body 130. The 2-1 actuator 150-1 and the 2-2 actuator 150-2 may provide a torque in the clockwise direction to the second movable body 110. For example, a Lorentz force may be generated between the 2-1 driving magnet 151-1 and the 2-1 driving coil 152-1, and therefore, a force F3 may act on the 2-1 driving magnet 151-1. A Lorentz force may be generated between the 2-2 driving magnet 151-2 and the 2-2 driving coil 152-2, and therefore, a force F4 may act on the 2-2 driving magnet 151-2. The forces F3 and F4 may rotate the second movable body 110 in the clockwise direction.

[0146] 2.3.3. Tilt movement

[0147] Fig. 7A and Figure 7B 1 is a diagram showing the inclination of the first movable body 130 .

[0148] Reference Fig. 7A and Figure 7B , the third OIS driver may rotate the image sensor 111 around an axis orthogonal to the optical axis. For example, the third OIS driver may rotate the first movable body 130 and the second movable body 110 in a clockwise direction or a counterclockwise direction relative to the tilt guide ball 164.

[0149] Fig. 7A and Figure 7BThe 3-1 actuator 160-1 and the 3-3 actuator 160-3 responsible for rotating the first movable body 130 in the first axis A1 direction (or the Y-axis direction) are shown. Although not shown, the first movable body 130 may be rotated around a different axis (e.g., Y axis) orthogonal to the optical axis by a plurality of third actuators including the 3-1 actuator 160-1 and / or the 3-3 actuator 160-3. Figure 2B The first axis A1 or the second axis A2) rotates.

[0150] Reference Fig. 7A When current is applied to the 3-1 driving coil 162-1, a repulsive force may 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 may rotate in the counterclockwise direction. Additionally or alternatively, when current is applied to the 3-3 driving coil 162-3, an attractive force may 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 may rotate in the counterclockwise direction relative to the fixed body 170.

[0151] Reference Figure 7B When current is applied to the 3-1 driving coil 162-1, an attractive force may 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 may rotate in the clockwise direction. Additionally or alternatively, when current is applied to the 3-3 driving coil 162-3, a repulsive force may 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 may rotate in the clockwise direction relative to the fixed body 170.

[0152] In an exemplary embodiment, one of the 3-1 actuator 160-1 and the 3-3 actuator 160-3 in the third OIS driver may not be provided. This is because the 3-1 actuator 160-1 and the 3-3 actuator 160-3 may rotate the first movable body 130 in a clockwise direction or a counterclockwise direction.

[0153] 2.4. Deformation of flexible substrate

[0154] Fig. 8A , Figure 8B , Figure 8C and Fig.8D is a diagram showing deformation of the substrate 140 according to the movement of the second movable body 110 .

[0155] Reference Fig. 8A, when the second movable body 110 moves in the -X direction, the movable portion 141 of the substrate 140 may also move in the -X direction, and therefore, the first bridge 147 connecting the guide 146 to the fixed portion 142 may be deformed. Since the bridge element 144 included in the first bridge 147 has elasticity, the deformed first bridge 147 may provide an elastic force to allow the movable portion 141 to return in the direction opposite to the moving direction (+X direction). Therefore, when no current is applied to the first OIS driver, the movable portion 141 may move in the +X direction.

[0156] Reference Figure 8B , when the second movable body 110 moves in the +X direction, the movable portion 141 of the substrate 140 may also move in the +X direction, and therefore, the first bridge 147 connecting the guide 146 to the fixed portion 142 may be deformed. Since the bridge element 144 included in the first bridge 147 has elasticity, the deformed first bridge 147 may provide elastic force to allow the movable portion 141 to return in the direction opposite to the moving direction (-X direction).

[0157] Reference Figure 8C , when the second movable body 110 moves in the +Y direction, the movable portion 141 of the substrate 140 may also move in the +Y direction, and therefore, the second bridge 148 connecting the guide 146 to the movable portion 141 may be deformed. Since the bridging element 144 included in the second bridge 148 has elasticity, the deformed second bridge 148 may provide elastic force to allow the movable portion 141 to return in the direction opposite to the moving direction (-Y direction).

[0158] Reference Fig.8D , when the second movable body 110 moves in the -Y direction, the movable portion 141 of the substrate 140 may also move in the -Y direction, and therefore, the second bridge 148 connecting the guide 146 to the movable portion 141 may be deformed. Since the bridge element 144 included in the second bridge 148 has elasticity, the deformed second bridge 148 may provide elastic force to allow the movable portion 141 to return in the direction opposite to the moving direction (+Y direction).

[0159] According to the above exemplary embodiments, the camera can provide effective optical image stabilization with low power. In addition, an excellent shake correction function can be achieved by driving the image sensor in different directions.

[0160] References in this article Figures 1 to 8DThe AF driver 23, OIS driver, first OIS driver, second OIS driver and third OIS driver, OIS driver 12, sensor, sensor shift module 10, sensor shift module 100, image sensor 11, image sensor 111, actuator, first actuator 120, second actuator 150 and third actuator 160, first position sensor, second position sensor, third position sensor, processor, memory and other devices, equipment, units, modules and components described are implemented by hardware components or represent hardware components. Where appropriate, examples of hardware components that can be used to perform the operations described herein include controllers, sensors, generators, drivers, memories, comparators, arithmetic logic units, adders, subtractors, multipliers, dividers, integrators, and any other electronic components configured to perform the operations described herein. In other examples, one or more of the hardware components that perform the operations described herein are implemented by computing hardware (e.g., by one or more processors or computers). The processor or computer can be implemented by one or more processing elements, such as logic gate arrays, controllers and arithmetic logic units, digital signal processors, microcomputers, programmable logic controllers, field programmable gate arrays, programmable logic arrays, microprocessors or any other device or combination of devices configured to respond and execute instructions in a prescribed manner to achieve desired results. In one example, the processor or computer includes (or is connected to) one or more memories storing instructions or software executed by the processor or computer. The hardware components implemented by the processor or computer can execute instructions or software, such as an operating system (OS) and one or more software applications running on the OS, to perform the operations described in this article. The hardware components can also access, manipulate, process, create and store data in response to the execution of instructions or software. For simplicity, the singular term "processor" or "computer" can be used to describe the examples described herein, but multiple processors or computers can be used in other examples, or the processor or computer can include multiple processing elements, or multiple types of processing elements or both. For example, a single hardware component or two or more hardware components can be implemented by a single processor, or two or more processors, or a processor and a controller. One or more hardware components may be implemented by one or more processors, or a processor and a controller, and one or more other hardware components may be implemented by one or more other processors, or another processor and another controller. One or more processors, or a processor and a controller may implement a single hardware component, or two or more hardware components.The hardware components may have any one or more of different processing configurations, examples of which include a single processor, independent processors, parallel processors, single instruction single data (SISD) multiprocessing, single instruction multiple data (SIMD) multiprocessing, multiple instruction single data (MISD) multiprocessing, and multiple instruction multiple data (MIMD) multiprocessing.

[0161] Figures 1 to 8D The method for performing the operations described herein shown in is performed by computing hardware, for example, by one or more processors or computers implemented as described above, executing instructions or software to perform the operations performed by the method described herein. For example, a single operation or two or more operations can be performed by a single processor, or two or more processors, or a processor and a controller. One or more operations can be performed by one or more processors, or a processor and a controller, and one or more other operations can be performed by one or more other processors, or another processor and another controller. One or more processors, or a processor and a controller can perform a single operation, or two or more operations.

[0162] The instructions or software for controlling computing hardware (e.g., one or more processors or computers) to implement hardware components and perform the methods described above can be written as computer programs, code segments, instructions, or any combination thereof, for individually or collectively instructing or configuring one or more processors or computers to operate as machines or special-purpose computers to perform operations performed by hardware components and methods described above. In one example, the instructions or software include machine codes directly executed by one or more processors or computers, such as machine codes generated by a compiler. In another example, the instructions or software include high-level codes executed by one or more processors or computers using an interpreter. Instructions or software can be written using any programming language based on the block diagrams and flow charts shown in the accompanying drawings and the corresponding descriptions used herein, and the accompanying drawings and the specification disclose algorithms for performing operations performed by hardware components and methods as described above.

[0163] Instructions or software for controlling computing hardware (e.g., one or more processors or computers) to implement hardware components and perform the methods described above, as well as any associated data, data files, and data structures, may be recorded, stored, or fixed in or on one or more non-transitory computer-readable storage media. Examples of non-transitory computer-readable storage media include read-only memory (ROM), random access programmable read-only memory (PROM), electrically erasable programmable read-only memory (EEPROM), random access memory (RAM), dynamic random access memory (DRAM), static random access memory (SRAM), flash memory, non-volatile memory, CD-ROM, CD-R, CD+R, CD-RW, CD+RW, DVD-ROM, DVD-R, DVD+R, DVD-RW, DVD+RW, DVD-RAM, BD-ROM, BD-R, BD-R LTH, BD-RE, Blu-ray or optical disk storage, hard disk drive (HDD), solid state drive (SSD), card-type memory such as multimedia card micro or card (e.g., secure digital (SD) or extreme digital (XD)), magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid state disk and any other device configured to store instructions or software and any associated data, data files and data structures in a non-transitory manner and provide instructions or software and any associated data, data files, and data structures to one or more processors or computers so that one or more processors or computers can execute the instructions. In one example, the instructions or software and any associated data, data files and data structures are distributed on a network-connected computer system so that the instructions and software and any associated data, data files and data structures are stored, accessed and executed by one or more processors or computers in a distributed manner.

[0164] Although specific examples have been shown and described above, it will be apparent after understanding the present 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 understood in a descriptive sense only and not for limiting purposes. The description of the features or aspects in each example should be considered to be applicable to similar features or aspects in other examples. If the described techniques are performed in a different order, and / or if the components in the described system, architecture, device or circuit are replaced or supplemented in a different manner and / or by other components or their equivalents, appropriate results can still be achieved. Therefore, the scope of the present disclosure is not limited by 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 the present disclosure.

Claims

1. Sensor shifting module, comprising: a fixed body; a first movable body movably disposed in the fixed body; a second movable body movably disposed in the first movable body and coupled to an image sensor to move together with the image sensor, the image sensor having an imaging surface facing a first direction; 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 fixed body about an axis orthogonal to the first direction, wherein the third driver includes an inclined guide ball disposed between the fixed body and the first movable body to provide an inclination center for the first movable body.

2. The sensor shifting module according to claim 1, wherein 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 driving magnet disposed on the second movable body and a first driving coil disposed on the first movable body to oppose the first driving magnet in the direction orthogonal to the first direction.

3. The sensor shifting module according to claim 2, 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.

4. The sensor shifting module according to claim 3, 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.

5. The sensor shifting module according to claim 4, wherein the second movable body includes a first side surface and a second side surface forming a corner, and the second driving magnet is disposed on the first side surface or the second side surface and is disposed adjacent to the corner.

6. The sensor shifting module according to claim 3, wherein the third driver includes a third actuator disposed between the first movable body and the fixed body, and the third actuator includes a third driving magnet disposed on the second movable body and a third driving coil disposed on the fixed body to oppose the third driving magnet in the first direction.

7. The sensor shifting module according to claim 6, wherein the third driving magnet is the first driving magnet or the second driving magnet.

8. The sensor shifting module according to claim 7, wherein The third driver includes a first magnetic member and a second magnetic member. The first magnetic member and the second magnetic member are respectively disposed on the fixed body and the first movable body, and are opposite to each other in the first direction.

9. The sensor displacement module according to claim 1, further comprising: A substrate that mechanically connects the second movable body to the first movable body and deforms according to the movement of the second movable body relative to the first movable body.

10. The sensor displacement module according to claim 9, wherein, The substrate includes electric wires electrically connected to the image sensor.

11. The sensor displacement module according to claim 10, 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 bridging members, and the plurality of bridging members include the electric wires embedded therein.

12. The sensor displacement module according to claim 11, wherein, The support portion includes guide members disposed between the movable portion and the fixed portion and connected to the movable portion and the fixed portion through the plurality of bridging members.

13. A camera module, comprising: The sensor displacement module according to claim 1; and A lens module including at least one lens, wherein light incident through the at least one lens falls on the imaging surface.

14. A camera module, comprising: A lens module including at least one lens; and A sensor displacement module, wherein the sensor displacement module includes: A fixed body; A first movable body movably disposed in the fixed body; A second movable body movably disposed in the first movable body and coupled to an image sensor to move together with the image sensor, the image sensor having an imaging surface facing the first direction; 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; A third driver configured to rotate the first movable body relative to the fixed body about an axis orthogonal to the first direction; and A substrate that mechanically connects the second movable body to the first movable body and deforms according to the movement of the second movable body relative to the first movable body.

15. The camera module according to claim 14, 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 bridging members, and the plurality of bridging members include electric wires embedded therein and electrically connected to the image sensor.

16. The camera module according to claim 14, wherein, The third driver includes a third actuator disposed between the first movable body and the fixed body, and the third actuator includes a third drive magnet disposed on the second movable body and a third drive coil disposed on the fixed body to oppose the third drive magnet in the first direction.

17. The camera module according to claim 16, wherein, the first driver or the second driver includes a drive coil and a drive magnet that face each other in the direction orthogonal to the first direction, and wherein the drive magnet is the third drive magnet.

18. A sensor shift module, comprising: a first movable body; a second movable body disposed on the first movable body; an image sensor disposed on the second movable body and including an imaging surface facing the first direction; a first driver configured to translate 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 a fixed body about an axis orthogonal to the first direction, wherein the second movable body moves together with the image sensor.

19. The sensor shift module according to claim 18, further comprising: an inclined guide ball disposed between the first movable body and the fixed body, wherein the first movable body is configured to rotate about the axis orthogonal to the first direction on the inclined guide ball; and a substrate that mechanically connects the second movable body to the first movable body and deforms according to the movement of the second movable body relative to the first movable body.

20. A camera module, comprising: the sensor shift module according to claim 18; and a lens module including at least one lens, wherein light incident through the at least one lens falls on the imaging surface in the first direction.

Images