Sensor shift module, camera module, and electronic device

Abstract

A sensor shifting module is provided. The sensor shifting module includes: a fixed body; a movable body movably disposed within the fixed body and including an image sensor having an imaging surface oriented in a first direction; and a driving unit for moving the movable body relative to the fixed body in a direction perpendicular to the first direction and rotating the movable body about an axis parallel to the first direction. The driving unit includes a driving coil coupled to one of the fixed body and the movable body, and a driving yoke coupled to the other of the fixed body and the movable body, the driving yoke facing the driving coil in the direction perpendicular to the first direction. When a current is applied to the driving coil, the movable body moves in the direction perpendicular to the first direction or rotates about an axis parallel to the first direction. A camera module including the sensor shifting module and electronic devices are also provided.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2021-0156825, filed on November 15, 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 having 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 distributed, and therefore, the demand for enhanced functionality of cameras in such mobile devices has gradually increased. For example, cameras included in mobile devices can be manufactured to provide advanced image capture functions (e.g., autofocus, image stabilization, etc.) that are typically found in digital SLR (DSLR) cameras, despite their small size.

[0005] Optical image stabilization (OIS) (such as shake correction) is a function that prevents image blurring when the camera shakes during exposure time, and is necessary when capturing images in low-light environments with significant camera shake and long exposure times. Image stabilization is mainly divided into digital image stabilization (DIS), electronic IS (EIS), and optical IS (OIS). Among them, OIS (optical IS) fundamentally prevents image degradation caused by camera shake by correcting the optical path by moving a lens or image sensor in a direction perpendicular to the optical axis. Because mechanical actuators are required, the implementation of the device is complex and provides optimal compensation performance at the cost of high price.

[0006] Because the lens barrel contains the internal optical system, a relatively large amount of force may be required to drive it. Since image sensors are relatively lightweight, this is advantageous for achieving excellent image stabilization even with relatively small forces. However, when the actuator driving the image sensor includes a permanent magnet, the magnetic field generated by the permanent magnet affects surrounding electronic components. Specifically, when a mobile device includes multiple cameras positioned adjacent to each other, a permanent magnet inside one camera may negatively impact the operation of adjacent cameras. Therefore, cameras may not be able to be placed close to each other, or it may be difficult to house the electronic components inside the camera. Summary of the Invention

[0007] The summary portion of this invention is intended to provide a brief overview of the chosen inventive concepts, which will be further described in the detailed description portion below. This summary portion is not intended to identify key or essential features of the claimed subject matter, nor to help determine the scope of the claimed subject matter.

[0008] In general, the sensor shifting module includes: a fixed body; a movable body movably disposed within the fixed body and including an image sensor having an imaging surface oriented in a first direction; and a driving unit configured to move the movable body relative to the fixed body in a direction perpendicular to the first direction and to rotate the movable body about an axis parallel to the first direction, wherein the driving unit includes a driving coil connected to one of the fixed body and the movable body and a driving yoke connected to the other of the fixed body and the movable body, wherein the driving yoke faces the driving coil in the direction perpendicular to the first direction, and wherein, when a current is applied to the driving coil, the movable body is configured to move in the direction perpendicular to the first direction or to rotate about an axis parallel to the first direction by electromagnetic interaction between the driving coil and the driving yoke.

[0009] The movable body may have four side surfaces forming a quadrilateral, and the drive coil or drive yoke is disposed at both ends adjacent to the four side surfaces.

[0010] The driving unit may include a first unit driving portion, a second unit driving portion, a third unit driving portion, and a fourth unit driving portion. Each of the first unit driving portion, the second unit driving portion, the third unit driving portion, and the fourth unit driving portion includes a driving coil and a driving yoke configured to move each of the first unit driving portion, the second unit driving portion, the third unit driving portion, and the fourth unit driving portion in a second direction perpendicular to the first direction, and facing the second direction respectively. The first unit driving portion and the second unit driving portion may be spaced apart from each other on a first side surface of the movable body, and the third unit driving portion and the fourth unit driving portion are spaced apart from each other on a second side surface of the movable body. The first side surface and the second side surface are arranged in opposite directions to each other.

[0011] When viewed in the second direction, the image sensor can be positioned between the first unit driving section and the second unit driving section.

[0012] The first unit drive section and the third unit drive section can be arranged in the second direction, and the second unit drive section and the fourth unit drive section can be arranged in the second direction.

[0013] The movable body may include a first side surface and a third side surface extending from the corner of the movable body in different directions, and the driving unit may include a first unit driving portion and a fifth unit driving portion disposed adjacent to the corner of the first side surface and the third side surface, respectively. The first unit driving portion may include a driving coil and a driving yoke opposite each other in a second direction perpendicular to the first direction, and the fifth unit driving portion may include a driving coil and a driving yoke opposite each other in a third direction perpendicular to the first direction. The second direction and the third direction intersect each other.

[0014] The surface of the driving yoke opposite the driving coil can be convex.

[0015] The surface of the driving yoke opposite the driving coil may include an inclined surface that extends from the center portion of the driving yoke to the end of the driving yoke.

[0016] The driving yoke and the driving coil can be opposite each other in a second direction perpendicular to the first direction, and the distance from the center portion of the driving yoke to the driving coil in the second direction can be shorter than the distance from the first end and the second end of the driving yoke to the driving coil in the second direction.

[0017] The driving yoke can be made of soft magnetic material.

[0018] The driving unit may further include a first magnetic yoke disposed on a first side of the driving coil, wherein the driving coil is disposed between the driving magnetic yoke and the first magnetic yoke.

[0019] The sensor shifting module may also include a substrate that mechanically connects the movable body to the fixed body and is configured to deform based on the movement of the movable body relative to the fixed body.

[0020] The substrate may include electrical traces electrically connected to the image sensor.

[0021] The substrate may include a floating portion fixedly connected to a movable body, a fixed portion fixedly connected to a fixed body, and a support portion interconnecting the floating portion and the fixed portion, wherein the support portion includes a plurality of bridging portions in which electrical traces are embedded.

[0022] The support portion may include a guide disposed between the floating portion and the fixed portion, and may be connected to the floating portion and the fixed portion by multiple bridging portions.

[0023] The multiple bridging portions may include a first bridging portion and a second bridging portion, the first bridging portion extending from the floating portion to the guide in a second direction perpendicular to the first direction, and the second bridging portion extending from the guide to the fixed portion in a third direction perpendicular to the first direction, the second direction and the third direction intersecting each other.

[0024] The drive unit may further include: a position sensor disposed on one of the fixed body and the movable body; and a sensing magnet disposed on the other of the fixed body and the movable body, and facing the position sensor in a first direction.

[0025] In general, the camera module includes: a lens module including at least one lens; and a sensor shifting module, wherein the sensor shifting module includes: a fixed body; a movable body movably disposed within the fixed body and including an image sensor oriented in a first direction; a substrate mechanically connecting the movable body to the fixed body and configured to deform based on movement of the movable body relative to the fixed body; and a drive unit configured to move the movable body relative to the fixed body in a direction perpendicular to the first direction and rotate the movable body about an axis parallel to the first direction, wherein the drive unit includes a drive coil coupled to one of the fixed body and the movable body and a drive yoke coupled to the other of the fixed body and the movable body, and wherein the drive yoke faces the drive coil in the direction perpendicular to the first direction, and the space between the drive yoke and the drive coil is an air gap.

[0026] The driving yoke can be made of soft magnetic material.

[0027] The driving unit may include a first unit driving section, a second unit driving section, a third unit driving section, and a fourth unit driving section. Each of the first unit driving section, the second unit driving section, the third unit driving section, and the fourth unit driving section includes a driving coil and a driving yoke configured to move each of the first unit driving section, the second unit driving section, the third unit driving section, and the fourth unit driving section in a second direction perpendicular to the first direction, and each facing the second direction. The first unit driving section and the second unit driving section are spaced apart from each other on a first side surface of the movable body, and the third unit driving section and the fourth unit driving section are spaced apart from each other on a second side surface of the movable body. The first side surface and the second side surface are in opposite directions to each other.

[0028] In general, the electronic device includes a housing and a camera module disposed within the housing. The camera module includes: a movable sensor carrier disposed on a flexible substrate; and a plurality of actuator unit drive portions configured to move the movable sensor carrier in a first direction perpendicular to the optical axis and a second direction perpendicular to the optical axis, and further configured to rotate the movable sensor carrier relative to a fixed body in a direction parallel to the optical axis. The flexible substrate includes a floating portion on which the movable sensor carrier is disposed, a fixed portion fixed to the fixed body, and a support portion connecting the floating portion to the fixed portion.

[0029] The two actuator unit drive sections can be located on each of the four sides of the movable sensor carrier.

[0030] The floating portion can be configured to move relative to the fixed body.

[0031] The electronic device may also include a position sensor disposed on the base of the fixed body and configured to measure movement of the movable sensor carrier in a first direction and a second direction, and to measure the amount of rotation of the movable sensor carrier. The electronic device may also include a sensing magnet disposed on the floating portion and configured to face the position sensor.

[0032] The position sensor can be either a Hall sensor or a magnetoresistive sensor.

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

[0034] Figure 1 The components constituting an exemplary camera module according to one or more embodiments are schematically shown.

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

[0036] Figure 3 A top view is shown of a substrate on which an image sensor is mounted, according to one or more embodiments.

[0037] Figure 4 This is a top view of an exemplary OIS driver according to one or more embodiments.

[0038] Figure 5A , Figure 5B , Figure 5C and Figure 5D It shows the basis Figure 4 The movement of the movable body driven by the OIS.

[0039] Figure 6 and Figure 7 It shows the basis Figure 4 The rotation of the movable body driven by the OIS.

[0040] Figure 8A , Figure 8B , Figure 8C and Figure 8D A variation of the substrate according to one or more embodiments is shown.

[0041] Figure 9A and Figure 9B It shows the relationship with Figure 2Different types of sensor brackets.

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

[0043] The following specific embodiments are provided to help readers gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein, except for operations that must occur in a specific order, but can be changed as will become apparent after understanding the disclosure of this application. Furthermore, for clarity and conciseness, descriptions of features known after understanding the disclosure of this application may be omitted; however, it should be noted that the omission of features and their descriptions is not intended to acknowledge them as common knowledge.

[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 only to illustrate some of the many possible ways in which the methods, apparatuses, and / or systems described herein will be apparent upon understanding the disclosure of this application.

[0045] It should be noted that in this document, the use of the term "may" (e.g., regarding what an example or implementation may include or implement) with respect to examples or implementations means that there exists at least one example or implementation that includes or implements such features, and not all examples and implementations are limited thereto.

[0046] Throughout this specification, when an element such as a layer, region, or substrate is described as being "on," "connected to," or "attached to" another element, the element may be directly "on," directly "connected to," or directly "attached to" the other element, or there may be one or more other elements between the element and the other element. Conversely, when an element is described as being "directly on," "directly connected to," or "directly attached to" another element, there are no other elements between the element and the other element. Similarly, expressions such as "between" and "directly between," and "adjacent to" and "directly adjacent to" can also be interpreted as described above.

[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.

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

[0049] Spatial relative terms such as “above,” “above,” “below,” and “below” may be used herein for descriptive convenience to describe the relationship of one element relative to another, as shown in the accompanying drawings. In addition to covering the orientation depicted in the drawings, these spatial relative terms are intended to also cover different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “above” another element would be located “below” or “below” that other element. Thus, depending on the spatial orientation of the device, the term “above” covers both orientations of “above” and “below”. The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein should be interpreted accordingly.

[0050] The terminology used herein is for the purpose of describing particular examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to include the plural forms as used herein. As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more items. As used herein, the terms “comprising,” “including,” and “having” indicate the presence of the stated features, numbers, operations, elements, components, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, operations, elements, components, and / or combinations thereof. In this document, the use of the term “may” relative to an example or implementation, such as with respect to what an example or implementation may include or implement, means that there exists at least one example or implementation that includes or implements such a feature, and that all examples or implementations are not limited thereto.

[0051] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as would be normally understood by one of ordinary skill in the art to which this disclosure pertains. For example, those terms as defined in commonly used dictionaries shall be interpreted as having a meaning consistent with their context in the relevant field and their meaning in this disclosure, and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0052] Variations in the shapes shown in the figures may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the figures, but include shape variations that may occur during manufacturing.

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

[0054] For purposes of clarity, illustration and convenience, the accompanying drawings may not be drawn to scale, and the relative dimensions, scale and depiction of elements in the drawings may be exaggerated.

[0055] In this document, the X direction, Y direction, and Z direction refer to the directions parallel to the X-axis, Y-axis, and Z-axis, respectively, as shown in the figure. Furthermore, unless otherwise stated, the X direction is a concept that includes both the +X-axis and -X-axis directions, and this also applies to the Y and Z directions.

[0056] When two directions (or axes) are parallel or perpendicular to each other in this document, it also includes examples where the two directions (or axes) are substantially parallel or substantially perpendicular to each other. For example, a first axis and a second axis that are perpendicular to each other means that the first axis and the second axis form an angle of 90 degrees or close to 90 degrees.

[0057] Paragraphs in this document that begin with "in one example" or "in an example" do not necessarily refer to the same example. Specific features, structures, or characteristics may be combined in any suitable manner consistent with this disclosure.

[0058] In this document, “configured as” means that a component includes the structure necessary to achieve a certain function.

[0059] In the following, examples of this disclosure will be described in detail with reference to the accompanying drawings. However, the spirit of this disclosure is not limited to the examples presented. For example, those skilled in the art who understand the spirit of this disclosure will be able to propose other examples that are included within the scope of the spirit of this disclosure by adding, changing, or deleting components, etc., but these will also be included within the scope of the spirit of this disclosure.

[0060] One or more examples involve methods for achieving optical image stabilization by driving an image sensor.

[0061] 1. Camera module

[0062] Figure 1 The components constituting an exemplary camera module 1 according to one or more embodiments are schematically shown.

[0063] In one example, camera module 1 includes a lens module 20 and an image sensor 11. Lens module 20 includes at least one lens 21 and a lens barrel 22 housing the lens 21. Light passes through lens module 20 and contacts the imaging surface of image sensor 11. Camera module 1 may include an AF drive unit 23 that moves lens module 20 along the optical axis to adjust focal length. AF drive unit 23 may include, for example, a coil and a magnet facing each other. The coil is fixedly coupled to lens module 20, the magnet is coupled to a fixed body such as a housing, and the electromagnetic interaction between the coil and the magnet can cause lens module 20 to move along the optical axis.

[0064] In this example, camera module 1 can provide optical image stabilization (hereinafter referred to as "OIS"). Camera module 1 can provide OIS by driving image sensor 11. For example, camera module 1 can include OIS driver 12, which moves or drives image sensor 11 in a direction perpendicular to the optical axis, or rotates image sensor 11 about an axis parallel to or perpendicular to the optical axis.

[0065] In this example, camera module 1 may include sensor shift module 10. Sensor shift module 10 may include components necessary to implement OIS functionality by driving image sensor 11. For example, sensor shift module 10 may include image sensor 11 and OIS driver 12 driving image sensor 11. As another example, sensor shift module 10 may refer only to OIS driver 12, without including image sensor 11.

[0066] In one example, in addition to lens module 20 and image sensor 11, camera module 1 may also include optical elements. In one example, camera module 1 may include two or more lens modules. For example, first optical element 30 and / or second optical element 40 may be lens modules different from lens module 20.

[0067] In this example, camera module 1 may include an optical path alteration element disposed in front of lens module 20. For example, the first optical element 30 may be a prism or a mirror. In another example, the optical path alteration element may be disposed between image sensor 11 and lens module 20. For example, the second optical element 40 may be a prism or a mirror.

[0068] In the following text, refer to Figures 2 to 9B The described sensor shifting module 100 or OIS driver 120 can be applied to Figure 1 Camera module 1.

[0069] 2. Sensor displacement

[0070] 2.1. Structure

[0071] Figure 2 A sensor shifting module 100 according to an example is shown. The sensor shifting module 100 may include an OIS driver 120 that drives an image sensor 111. In the example, the OIS driver 120 includes a movable body 110 and a fixed body 130, wherein the movable body 110 includes the image sensor 111. The movable body 110 may be movably disposed inside the fixed body 130. The movable body 110 is a component that moves together with the image sensor 111. For example, the movable body 110 may include a sensor substrate 112 on which the image sensor 111 is mounted and a sensor support 113 coupled to the sensor substrate 112.

[0072] Reference Figure 2 The sensor holder 113 may include a plate 113a connected to the lower part of the sensor substrate 112 and an extension 113b extending upward (e.g., in the +Z direction) from the edge of the plate 113a. The extension 113b may face the drive coil 122, and the drive yoke 121 may be disposed on the extension 113b. In another example, the drive yoke 121 may be mounted on the fixture 130, and the drive coil 122 may be mounted on the sensor holder 113. In this example, the drive coil 122 and / or the yoke 123 may be disposed on the extension 113b.

[0073] Signals from image sensor 111 can be transmitted to another electronic component (e.g., image signal processor (ISP)) via sensor substrate 112 and connector.

[0074] The fixing body 130 may include a base 131 and components fixedly connected to the base 131. For example, the fixing body 130 may include a drive coil 122 and a yoke 123, which will be described later.

[0075] The movable body 110 can be moved in a direction orthogonal to the direction facing the imaging surface 111a of the image sensor 111 via the OIS driver 120. In this example, the OIS driver 120 can correct for shake in the camera module 1 or the electronics in which the image sensor 111 is mounted in a direction perpendicular to the optical axis O. The OIS driver 120 can move the image sensor 111 in a first direction and a second direction perpendicular to the optical axis O. The first and second directions may intersect each other. For example, the OIS driver 120 can move the movable body 110 in the X and / or Y directions perpendicular to the Z-axis, and thus can correct for shake in the X and / or Y directions.

[0076] In the example, the OIS driver 120 can rotate the movable body 110 relative to the fixed body 130 based on an axis parallel to the optical axis O. The OIS driver 120 can correct the rotation of the camera module 1 or the electronic device in which the image sensor 111 is mounted based on an axis parallel to the optical axis O.

[0077] In one or more examples, the direction facing the imaging surface 111a of the image sensor 111 can be referred to as the optical axis O direction. For example, the movable body 110 can move relative to the fixed body 130 in a direction perpendicular to the optical axis O. In the figures of one or more examples, the optical axis O is shown as parallel to the Z-axis, and therefore the Z-direction represents a direction parallel to the optical axis O. Furthermore, the X-direction or Y-direction represents a direction perpendicular to the optical axis O. For example, in one or more examples, moving the movable body 110 in the X-direction can be understood as moving the movable body 110 in a direction perpendicular to the optical axis O. In another example, it can be understood that the drive yoke 121 and drive coil 122 facing each other in the X-direction represent that the drive yoke 121 and drive coil 122 face each other in a direction perpendicular to the optical axis O. Furthermore, the X-direction or Y-direction is an example of two directions perpendicular to the optical axis O and intersecting each other, and in one or more examples, the X-direction and Y-direction can be understood as two directions perpendicular to the optical axis O and intersecting each other.

[0078] 2.1.1. PCB Springs

[0079] In this example, the sensor shifting module 100 may include a substrate 140 that mechanically connects a movable body 110 to a fixed body 130. The substrate 140 can connect the movable body 110 to the fixed body 130 so that it is movable relative to the fixed body 130 in a direction perpendicular to the optical axis O. A portion of the substrate 140 may deform according to the movement of the movable body 110 relative to the fixed body 130. For example, a portion of the substrate 140 may be flexible. When the substrate 140 deforms, a restoring force is generated in the substrate 140, and this restoring force can return the movable body 110 to its initial position. When current is applied to the drive coil 122, the movable body 110, in an equilibrium state, moves relative to the fixed body 130, and when current no longer flows in the drive coil 122, the movable body 110 can return to its initial position via the substrate 140.

[0080] Figure 3 A top view is shown of a substrate 140 on which an image sensor 111 is mounted, according to one or more embodiments. (Refer to...) Figure 2 and Figure 3 The substrate 140 may include a floating portion 141 on which the sensor substrate 112 is disposed and a fixed portion 142 fixed to the fixing body 130. The sensor substrate 112 and the floating portion 141 may be electrically connected to each other at corresponding contact points P1 and P2 by solder balls.

[0081] When the movable body 110 (or image sensor 111) moves relative to the fixed body 130, the floating portion 141 moves relative to the fixed portion 142. The substrate 140 may include a support portion 143 connecting the floating portion 141 and the fixed portion 142 to each other. The support portion 143 may deform at least partially according to the relative movement between the floating portion 141 and the fixed body 130. In an example, the support portion 143 may be formed of a flexible substrate. The flexible substrate may be provided in the form of a conductive pattern (or trace 145) formed within a film formed of a polyimide material.

[0082] In this example, substrate 140 may include a plurality of bridging elements 144 connecting floating portion 141 and fixed portion 142. The plurality of bridging elements 144 may form at least a portion of support portion 143. The plurality of bridging elements 144 are formed of a flexible material and are deformable when floating portion 141 moves relative to fixed portion 142. When movable body 110 moves relative to fixed body 130, floating portion 141 may move relative to fixed portion 142, and bridging elements 144 may deform. The restoring force generated when bridging elements 144 deform can return movable body 110 or floating portion 141 to its initial position. The plurality of bridging elements 144 may each include at least one electrical trace 145. For example, the plurality of bridging elements 144 can mechanically and electrically connect floating portion 141 (or movable body 110) to fixed portion 142 (or fixed body 130). For example, bridging elements 144 support image sensor 111 and can serve as channels through which signals from image sensor 111 are transmitted.

[0083] In this example, substrate 140 may include a guide 146 disposed between floating portion 141 and fixed portion 142. For example, guide 146 may be configured as a frame surrounding floating portion 141. Fixed portion 142, guide 146, and floating portion 141 may be connected by bridging element 144. For example, substrate 140 may include a first bridging element 147 extending from guide 146 to fixed portion 142 and a second bridging element 148 extending from floating portion 141 to guide 146. First bridging element 147 and second bridging element 148 may extend in a direction perpendicular to optical axis O. First bridging element 147 and second bridging element 148 may extend in directions intersecting each other. For example, first bridging element 147 may extend in the Y direction, and second bridging element 148 may extend in the X direction.

[0084] The first bridging element 147 and the second bridging element 148 may each include one or more bridging elements 144. Figure 3 In the first bridging member 147, four bridging elements 144 extending in the Y direction are included, and the second bridging member 148 includes four bridging elements 144 extending in the X direction. Figure 3 The substrate 140 has an illustrative shape, and the shape of the support portion 143 connecting the floating portion 141 and the fixed portion 142 can be varied. For example, the support portion 143 may include a plurality of bridging elements 144 extending directly from the floating portion 141 to the fixed portion 142. As another example, the first bridging element 147 or the second bridging element 148 may include five bridging elements 144. The number of bridging elements 144 constituting the first bridging element 147 or the second bridging element 148 may be as many as the number of terminals corresponding to the image sensor 111.

[0085] The substrate 140 may include electrical traces 145 for transmitting signals from the image sensor 111. Multiple bridging elements 144 constituting the support portion 143 embed the electrical traces 145. The image sensor 111 is mounted on a sensor substrate 112, and the sensor substrate 112 is electrically connected to a fixed portion 142 of the substrate 140. The electrical traces 145 may extend from each of the contact points P2 formed in the floating portion 141. The electrical traces 145 may extend through the bridging elements 144 to reach the fixed portion 142. The electrical traces 145 extending to the fixed portion 142 may be electrically connected to another substrate or electronic component.

[0086] on the other hand, Figure 3 Electrical traces 145 formed on substrate 140 are schematically shown, and for ease of description, only electrical traces 145 extending from some contact points P2 are shown.

[0087] 2.1.2. Position Sensor

[0088] Reference Figure 2 In this example, the OIS driver 120 may include a position sensor 127 that can measure how much the movable body 110 has moved in a direction perpendicular to the optical axis O, or how much the movable body 110 has rotated about an axis parallel to the optical axis O. As an example, the position sensor 127 may be a Hall sensor or a magnetoresistive sensor.

[0089] The OIS driver 120 may include a sensing magnet 124 that moves with the movable body 110 and faces the position sensor 127. The position sensor 127 may be positioned to face the sensing magnet 124. For example, the position sensor 127 may be disposed on the base 131, and the sensing magnet 124 may be disposed on the substrate 140 to face the position sensor 127 in the optical axis O direction (e.g., in the Z direction). As another example, the position sensor 127 may be disposed on the substrate 140, and the sensing magnet 124 may be disposed on the base 131. The position sensor 127 and the sensing magnet 124 may be disposed in two or more pairs.

[0090] 2.2. Actuator

[0091] Reference Figure 2 In the example, the OIS driver 120 may include a drive coil 122 coupled to one of the movable body 110 and the fixed body 130, and a drive yoke 121 coupled to the other of the movable body 110 and the fixed body 130. For example, see reference... Figure 2In this example, the drive coil 122 and the drive yoke 121 can be connected to the base 131 and the sensor bracket 113, respectively. The drive yoke 121 and the drive coil 122 can face each other in a direction perpendicular to the optical axis O. The electromagnetic interaction between the drive yoke 121 and the drive coil 122 causes the movable body 110 to move relative to the fixed body 130 in a direction perpendicular to the optical axis O. Furthermore, the electromagnetic interaction between the drive yoke 121 and the drive coil 122 causes the movable body 110 to rotate relative to the fixed body 130 about an axis parallel to the optical axis O.

[0092] In the example, the OIS driver 120 may also include a yoke 123 disposed on one side of the coil. The yoke 123 allows the magnetic field generated in the coil to be concentrated only in the direction toward the driving yoke 121. Since the yoke 123 is disposed on one side of the driving coil 122, the magnetic field generated by the driving coil 122 can be prevented from affecting other electronic components, or the effect of the magnetic field on other electronic components can be significantly reduced.

[0093] In one or more examples, the drive coil 122 and drive yoke 121 are consistently described as being connected to the fixed body 130 and the movable body 110, respectively. However, this is only an example, and in another example, the drive coil 122 and drive yoke 121 may be connected to the movable body 110 and the fixed body 130, respectively. For example, the drive coil 122 and drive yoke 121 may be connected to the sensor bracket 113 and the base 131, respectively.

[0094] An air gap may be formed between the drive coil 122 and the drive yoke 121. Alternatively, the space between the drive coil 122 and the drive yoke 121 may be an air gap. For example, there may be no other components (e.g., a magnet) between the drive coil 122 and the drive yoke 121. The drive coil 122 and the drive yoke 121 face each other directly and have an air gap between them.

[0095] Figure 2 The components of the OIS driver 120 are shown, and one or more examples are not included. Figure 2 Structural limitations.

[0096] 2.2.1. Magnetic Reluctance

[0097] In this example, the OIS driver 120 may not include a permanent magnet. In this example, when no current flows in the drive coil 122, the magnetic field generated by the drive yoke 121 can be zero or very small. Therefore, the magnetic field generated by the OIS driver 120 itself can be prevented or significantly reduced from affecting other electronic components (e.g., other electronic components within camera module 1, or other electronic components within another camera module 1).

[0098] In the example, the driving yoke 121 can be formed of a soft magnetic material. Soft magnetic materials have low coercivity and are magnetized when exposed to a magnetic field, but lose their magnetism when the magnetic field is removed or can have a relatively low level of magnetism.

[0099] When current is applied to the drive coil 122, the drive yoke 121 is magnetized, thereby generating magnetic resistance between the drive coil 122 and the drive yoke 121. An attractive force is generated in the direction in which the drive yoke 121 and the drive coil 122 face each other, causing the movable body 110 to move relative to the fixed body 130 in the corresponding direction. For example, refer to... Figure 4 When current is applied to the first unit drive section 120-1 and the second unit drive section 120-2, an attractive force is generated between the drive coil 122 constituting the first unit drive section 120-1 and the second unit drive section 120-2 and the drive yoke 121, which allows the movable body 110 to move in the -X direction. Conversely, when current is applied to the third unit drive section 120-3 and the fourth unit drive section 120-4, an attractive force is generated between the drive coil 122 constituting the third unit drive section 120-3 and the fourth unit drive section 120-4 and the drive yoke 121, which allows the movable body 110 to move in the +X direction.

[0100] 2.2.2. Array (translation + scrolling)

[0101] Figure 4 This is a top view of an OIS driver 120 according to one or more embodiments.

[0102] The OIS driver 120 may include multiple unit drive sections 120-1, 120-2, 120-3, 120-4, 120-5, 120-6, 120-7, and 120-8. Each of the unit drive sections 120-1, 120-2, 120-3, 120-4, 120-5, 120-6, 120-7, and 120-8 may each include a drive yoke 121 and a drive coil 122 facing each other. The drive yoke 121 and drive coil 122 may be mounted facing each other on the movable body 110 and the fixed body 130. It is understood that the unit drive sections 120-1, 120-2, 120-3, 120-4, 120-5, 120-6, 120-7, and 120-8 may also include a yoke 123 disposed on one side of the drive coil 122.

[0103] In the example, the OIS driver 120 may include at least one unit drive portion disposed in the -X and +X directions of the movable body 110, respectively, to correct jitter in the X direction. For example, refer to Figure 4The OIS driver 120 may include a first unit drive section 120-1, a second unit drive section 120-2, a third unit drive section 120-3, and a fourth unit drive section 120-4. The first unit drive section 120-1 and the second unit drive section 120-2 are disposed in the -X direction of the movable body 110, and the movable body 110 can be moved in the -X direction when a current is applied. The third unit drive section 120-3 and the fourth unit drive section 120-4 are disposed in the +X direction of the movable body 110, and the movable body 110 can be moved in the +X direction when a current is applied.

[0104] The first unit drive portion 120-1 and the third unit drive portion 120-3 can be arranged in a first direction (e.g., the X direction) perpendicular to the optical axis O. Additionally, the second unit drive portion 120-2 and the fourth unit drive portion 120-4 can be arranged in the first direction. For example, when viewed in the first direction, the first unit drive portion 120-1 and the third unit drive portion 120-3 overlap each other, and the second unit drive portion 120-2 and the fourth unit drive portion 120-4 overlap each other.

[0105] In the example, the OIS driver 120 may include at least one unit drive portion disposed in the -Y and +Y directions of the movable body 110, respectively, to correct jitter in the Y direction. For example, the OIS driver 120 may include a fifth unit drive portion 120-5, a sixth unit drive portion 120-6, a seventh unit drive portion 120-7, and an eighth unit drive portion 120-8. The fifth unit drive portion 120-5 and the sixth unit drive portion 120-6 are disposed in the +Y direction of the movable body 110 and can move the movable body 110 in the +Y direction when a current is applied. The seventh unit drive portion 120-7 and the eighth unit drive portion 120-8 are disposed in the -Y direction of the movable body 110 and can move the movable body 110 in the -Y direction when a current is applied.

[0106] The fifth unit drive portion 120-5 and the seventh unit drive portion 120-7 can be arranged in a second direction (e.g., the Y direction) perpendicular to the optical axis O. Additionally, the sixth unit drive portion 120-6 and the eighth unit drive portion 120-8 can be arranged in the second direction. For example, when viewed in the second direction, the fifth unit drive portion 120-5 and the seventh unit drive portion 120-7 overlap each other, and the sixth unit drive portion 120-6 and the eighth unit drive portion 120-8 overlap each other.

[0107] In the example, the movable body 110 has four side surfaces 113b-1, 113b-2, 113b-3, and 113b-4 forming a quadrilateral, and the drive coil 122 or drive yoke 121 may be disposed adjacent to both ends of each of the four side surfaces 113b-1, 113b-2, 113b-3, and 113b-4. A first unit drive portion 120-1 and a second unit drive portion 120-2 may be disposed on the first side surface 113b-1 of the movable body 110 and may be spaced apart from each other. For example, the first side surface 113b-1 may face the -X direction, and the first unit drive portion 120-1 and the second unit drive portion 120-2 may be spaced apart from each other in the Y direction. The first unit drive portion 120-1 and the second unit drive portion 120-2 may be disposed adjacent to both ends of the first side surface 113b-1, respectively. When viewed in the X direction, the optical axis O (or image sensor 111) can be located between the first unit drive section 120-1 and the second unit drive section 120-2. Therefore, when current is applied to the first unit drive section 120-1 or the second unit drive section 120-2, a Z-axis torque can be generated in the movable body 110, causing the movable body 110 to rotate about the Z-axis relative to the fixed body 130.

[0108] The third unit drive portion 120-3 and the fourth unit drive portion 120-4 are disposed on the second side surface 113b-2 of the movable body 110 and spaced apart from each other. The second side surface 113b-2 and the first side surface 113b-1 face opposite directions. For example, the second side surface 113b-2 may face the +X direction, and the third unit drive portion 120-3 and the fourth unit drive portion 120-4 may be spaced apart from each other in the Y direction. The third unit drive portion 120-3 and the fourth unit drive portion 120-4 may be disposed near the two ends of the second side surface 113b-2, respectively. When viewed in the X direction, the optical axis O (or image sensor 111) may be located between the third unit drive portion 120-3 and the fourth unit drive portion 120-4. Therefore, when current is applied to the third unit drive portion 120-3 or the fourth unit drive portion 120-4, a Z-axis torque can be generated in the movable body 110, causing the movable body 110 to rotate about the Z-axis relative to the fixed body 130.

[0109] The fifth unit drive portion 120-5 and the sixth unit drive portion 120-6 are disposed on the third side surface 113b-3 of the movable body 110 and spaced apart from each other. The fifth unit drive portion 120-5 and the sixth unit drive portion 120-6 may be spaced apart from each other in the X direction. The fifth unit drive portion 120-5 and the sixth unit drive portion 120-6 may be disposed near the two ends of the third side surface 113b-3, respectively. When viewed in the Y direction, the optical axis O (or image sensor 111) may be located between the fifth unit drive portion 120-5 and the sixth unit drive portion 120-6. Therefore, when a current is applied to one of the fifth unit drive portion 120-5 and the sixth unit drive portion 120-6, a Z-axis torque can be generated in the movable body 110, causing the movable body 110 to rotate about the Z-axis relative to the fixed body 130.

[0110] The seventh unit drive portion 120-7 and the eighth unit drive portion 120-8 are disposed on the fourth side surface 113b-4 of the movable body 110 and are spaced apart from each other. The fourth side surface 113b-4 faces the opposite direction to the third side surface 113b-3. The seventh unit drive portion 120-7 and the eighth unit drive portion 120-8 may be spaced apart from each other in the X direction. The seventh unit drive portion 120-7 and the eighth unit drive portion 120-8 may be disposed near both ends of the fourth side surface 113b-4. When viewed in the Y direction, the optical axis O (or image sensor 111) may be located between the seventh unit drive portion 120-7 and the eighth unit drive portion 120-8. Therefore, when a current is applied to one of the seventh unit drive portion 120-7 and the eighth unit drive portion 120-8, a Z-axis torque can be generated in the movable body 110, causing the movable body 110 to rotate about the Z-axis relative to the fixed body 130.

[0111] The OIS driver 120 may include multiple unit drive sections for corrective rotation relative to an axis parallel to the optical axis O. The OIS driver 120 may include at least one unit drive section that generates a Z-axis torque in the movable body 110.

[0112] For example, when current is applied to at least one of the first unit drive section 120-1, the fourth unit drive section 120-4, the sixth unit drive section 120-6, and the seventh unit drive section 120-7, a torque in the +Z direction (direction from the ground) can be generated in the movable body 110 by the attractive force between the drive yoke 121 and the drive coil 122. In another example, when current is applied to at least one of the second unit drive section 120-2, the third unit drive section 120-3, the fifth unit drive section 120-5, and the eighth unit drive section 120-8, a torque in the -Z direction (direction into the ground) can be generated in the movable body 110 by the attractive force between the drive yoke 121 and the drive coil 122.

[0113] In the example, the unit drive portion may be disposed near the corner of the movable body 110. The movable body 110 includes a first side surface 113b-1 and a third side surface 113b-3 extending from the first corner 113a-1 in different directions. A first unit drive portion 120-1 is disposed on the first side surface 113b-1 near the first corner 113a-1, and a fifth unit drive portion 120-5 is disposed on the third side surface 113b-3 near the first corner 113a-1. The movable body 110 includes a first side surface 113b-1 and a fourth side surface 113b-4 extending from the second corner 113a-2 in different directions. A second unit drive portion 120-2 is disposed on the first side surface 113b-1 near the second corner 113a-2, and a seventh unit drive portion 120-7 is disposed on the fourth side surface 113b-4 near the second corner 113b-2. The movable body 110 includes a second side surface 113b-2 and a third side surface 113b-3 extending from the third corner 113a-3 in different directions. A third unit drive portion 120-3 is disposed on the second side surface 113b-2 near the third corner 113a-3, and a sixth unit drive portion 120-6 is disposed on the third side surface 113b-3 near the third corner 113a-3. The movable body 110 includes a second side surface 113b-2 and a fourth side surface 113b-4 extending from the fourth corner 113a-4 in different directions. A fourth unit drive portion 120-4 is disposed on the second side surface 113b-2 near the fourth corner 113a-4, and an eighth unit drive portion 120-8 is disposed on the fourth side surface 113b-4 near the fourth corner 113a-4.

[0114] In one or more examples, a near-corner arrangement can indicate that the unit drive portion is spaced apart from the optical axis O when viewed from the side. For example, when viewed in the X direction, the first unit drive portion 120-1 can be positioned away from the optical axis O in the +Y direction. Alternatively, when viewed in the Y direction, the fifth unit drive portion 120-5 can be positioned away from the optical axis O in the -X direction. Thus, the unit drive portion can generate torque in the movable body 110 in a direction parallel to the optical axis O.

[0115] Figure 4 The arrangement or number of unit drive sections shown is merely an example, and one or more examples are not limited to this. For example, it is possible to set up other than Figure 4 The additional unit driving section shown is separate from the unit driving section. As another example, it can be omitted. Figure 4 This is a part of the unit drive section shown.

[0116] Reference Figure 4 The drive yoke 121 can be configured such that it does not interfere with the corresponding drive coil 122 when the movable body 110 rotates. In the example, the surface of the drive yoke 121 opposite to the drive coil 122 can be convex. The thickness of the drive yoke 121 can decrease from the central portion 121a to both ends 121b. Because the drive yoke 121 is configured to be convex, the rotational range of the movable body 110 can be increased.

[0117] For example, the surface of the driving yoke 121 opposite to the driving coil 122 may include an inclined surface 121c extending from the central portion 121a toward the two ends 121b. (See reference...) Figure 4 The enlarged view in the upper right shows that the driving yoke 121 and the driving coil 122 face each other in the Y direction perpendicular to the optical axis O, and the distance d1 in the Y direction between the central part 121a of the driving yoke 121 and the driving coil 122 can be shorter than the distance d2 in the Y direction between the end 121b of the driving yoke 121 and the driving coil 122.

[0118] 2.3. Exercise

[0119] 2.3.1. Translation

[0120] Figures 5A to 5D The movable body 110 is shown based on Figure 4 The movement of the OIS driver 120.

[0121] Reference Figure 5A When current is applied to the first unit drive section 120-1 and the second unit drive section 120-2, a force in the direction of the arrow is applied to the movable body 110, causing the movable body 110 to move in the -X direction. (Refer to...) Figure 5BWhen current is applied to the third unit drive section 120-3 and the fourth unit drive section 120-4, a force in the direction of the arrow acts on the movable body 110, causing the movable body 110 to move in the +X direction. (Refer to...) Figure 5C When current is applied to the fifth unit drive section 120-5 and the sixth unit drive section 120-6, a force in the direction of the arrow is applied to the movable body 110, causing the movable body 110 to move in the +Y direction. (Refer to...) Figure 5D When current is applied to the seventh unit drive section 120-7 and the eighth unit drive section 120-8, the force in the direction of the arrow acts on the movable body 110, which causes the movable body 110 to move in the -Y direction.

[0122] 2.3.2. Scrolling

[0123] Figure 6 and Figure 7 The passage of the movable body 110 is shown. Figure 4 The rotation of the OIS driver 120.

[0124] Reference Figure 6 When current is applied to the first unit drive section 120-1, the fourth unit drive section 120-4, the sixth unit drive section 120-6, or the seventh unit drive section 120-7, the force of each drive section in the arrow direction generates a torque in the +Z direction in the movable body 110, which can cause the movable body 110 to rotate counterclockwise relative to the fixed body 130.

[0125] Reference Figure 7 When current is applied to the second unit drive section 120-2, the third unit drive section 120-3, the fifth unit drive section 120-5, or the eighth unit drive section 120-8, the force of each drive section in the arrow direction generates a torque in the -Z direction in the movable body 110, which causes the movable body 110 to rotate clockwise relative to the fixed body 130.

[0126] 2.4. Deformation of flexible substrate

[0127] Figures 8A to 8D The deformation of the substrate 140 according to the movement of the movable body 110 according to one or more embodiments is shown.

[0128] Reference Figure 8AWhen the movable body 110 moves in the -X direction, the floating portion 141 of the substrate 140 also moves in the -X direction, and therefore, the first bridging member 147 connecting the guide 146 and the fixed portion 142 to each other can deform. Since the bridging element 144 constituting the first bridging member 147 is elastic, the deformed first bridging member 147 provides a restoring force to return the floating portion 141 to the direction opposite to the direction of movement (e.g., the +X direction). Therefore, when no current is applied to the OIS driver 120, the floating portion 141 moves in the +X direction.

[0129] Reference Figure 8B When the movable body 110 moves in the +X direction, the floating portion 141 of the substrate 140 also moves in the +X direction, and therefore, the first bridging member 147 connecting the guide 146 and the fixed portion 142 to each other deforms. Since the bridging element 144 constituting the first bridging member 147 is elastic, the deformed first bridging member 147 provides a restoring force to return the floating portion 141 to the direction opposite to the direction of movement (e.g., the -X direction).

[0130] Reference Figure 8C When the movable body 110 moves in the +Y direction, the floating portion 141 of the substrate 140 also moves in the +Y direction, and therefore, the second bridging member 148 connecting the guide 146 and the fixed portion 142 deforms. Since the bridging element 144 constituting the second bridging member 148 is elastic, the deformed second bridging member 148 provides a restoring force to return the floating portion 141 to the direction opposite to the direction of movement (e.g., the -Y direction).

[0131] Reference Figure 8D When the movable body 110 moves in the -Y direction, the floating portion 141 of the substrate 140 also moves in the -Y direction, and therefore, the second bridging member 148 connecting the guide 146 and the fixed portion 142 deforms. Since the bridging element 144 constituting the second bridging member 148 is elastic, the deformed second bridging member 148 provides a restoring force to return the floating portion 141 to the direction opposite to the direction of movement (e.g., the +Y direction).

[0132] Despite Figures 8A to 8D The rotation of the movable body 110 is not described, but the substrate 140 can provide a restoring force in the opposite direction based on the rotation of the movable body 110. For example, when the movable body 110 rotates as... Figure 6 When rotated counterclockwise as shown, the bridging element of substrate 140 144 The deformation provides a clockwise restoring force to the movable body 110. When the movable body 110... Figure 7As shown, when rotated in the clockwise direction, the bridging element 144 of the substrate 140 deforms to provide a counterclockwise restoring force to the movable body 110.

[0133] 2.5. Changes in the moving body

[0134] Figure 9A and Figure 9B With Figure 2 The sensor bracket 213 is shown in different forms.

[0135] Reference Figure 9A The sensor holder 213 can be disposed on the sensor substrate 112. In an example, the sensor holder 213 includes a plate 213a disposed on the sensor substrate 112 and an extension 213b extending downward (e.g., in the -Z direction) from the edge of the plate 213a. The extension 213b faces the drive coil of the OIS driver 120 (e.g., ...). Figure 2 The drive coil 122), and the drive yoke of the OIS driver 120 (e.g., Figure 2 The drive yoke 121 can be located on the extension 213b. In another example, the drive yoke is mounted on the fixture 130, and the drive coil can be mounted on the sensor holder 213. In this example, the drive coil and / or the yoke (e.g., Figure 2 The magnetic yoke 123 can be mounted on the extension 213b. Figure 2 Compared to the sensor bracket 113, Figure 9A The sensor bracket 213 is more advantageous in avoiding interference with the solder balls connecting the sensor substrate 112 and the substrate 140. In addition, when the sensor bracket 213 is disposed on the upper side of the sensor substrate 112, the thickness of the sensor bracket 213 can be increased relatively freely, which can improve the mechanical rigidity of the sensor bracket 213.

[0136] Reference Figure 9A The image sensor 111 can be electrically connected to the sensor substrate 112 through a conductive path.

[0137] Reference Figure 9B The sensor holder 313 may be disposed on the sensor substrate 112. In an example, the sensor holder 313 may include a plate 313a disposed on the sensor substrate 112 and an extension 313b extending downward (e.g., in the -Z direction) from the edge of the plate 313a. The extension 313b faces the drive coil of the OIS driver 120 (e.g., ...). Figure 2 The drive coil 122), and the drive yoke of the OIS driver 120 (e.g., Figure 2The drive yoke 121 can be mounted on the extension 313b. In this example, the drive yoke can be mounted on the fixture 130, and the drive coil can be mounted on the sensor holder 313. In this example, the drive coil and / or the yoke (e.g., Figure 2 The magnetic yoke 123 can be mounted on the extension 313b. Figure 2 Compared to the sensor bracket 113, Figure 9B The sensor bracket 313 is more advantageous in avoiding interference with the solder balls connecting the sensor substrate 112 and the substrate 140. In addition, when the sensor bracket 313 is disposed on the upper side of the sensor substrate 112, the thickness of the sensor bracket 313 can be increased relatively freely, which can improve the mechanical rigidity of the sensor bracket 313.

[0138] Reference Figure 9B The image sensor 111 can be directly mounted on the sensor substrate 112. Therefore, the sensor bracket 313 can include a through portion 313c in the part corresponding to the image sensor 111. The image sensor 111 is disposed on the sensor substrate 112, and the terminals of the image sensor 111 and the terminals of the sensor substrate 112 can be connected to each other by wire bonding.

[0139] As described above, according to the example, the camera can provide effective optical image stabilization even with low power consumption. Alternatively, in the example, the effect of the magnetic field of the actuator driving the image sensor on electronic components located outside the camera can be eliminated or significantly reduced.

[0140] While this disclosure includes specific examples, it will be apparent to those skilled in the art, upon understanding the disclosure of this application, that various changes in form and detail may be made to these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be understood in a descriptive sense only and not for limiting purposes. The description of features or aspects in each example should be considered applicable to similar features or aspects in other examples. Appropriate results may still be achieved if the described techniques are performed with components in a different order, and / or if they are combined in a different manner and / or replaced or supplemented by other components or their equivalents. Therefore, the scope of this disclosure is not limited by the specific embodiments but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents should be understood to be included in this disclosure.

Claims

1. A sensor shifting module, comprising: Fixed body; A movable body is movably disposed within the fixed body and includes an image sensor and a sensor substrate on which the image sensor is mounted, the image sensor having an imaging surface oriented in a first direction; as well as The drive unit is configured to move the movable body relative to the fixed body in a direction perpendicular to the first direction, and is also configured to rotate the movable body about an axis parallel to the first direction. The driving unit includes a driving coil connected to one of the fixed body and the movable body, and a driving yoke connected to the other of the fixed body and the movable body. The driving yoke faces the driving coil in a second direction perpendicular to the first direction. When current is applied to the drive coil, the movable body is configured to move in a direction perpendicular to the first direction through the electromagnetic interaction between the drive coil and the drive yoke, or to rotate about an axis parallel to the first direction. The surface of the driving yoke opposite the driving coil is convex, and Wherein, the distance from the center portion of the driving yoke to the driving coil in the second direction is shorter than the distance from the first end and the second end of the driving yoke to the driving coil in the second direction.

2. The sensor shifting module according to claim 1, wherein, The movable body has four side surfaces forming a quadrilateral, and the drive coil or the drive yoke is disposed adjacent to both ends of the four side surfaces.

3. The sensor shifting module according to claim 1, wherein, The driving unit includes a first unit driving section, a second unit driving section, a third unit driving section, and a fourth unit driving section. Each of the first, second, third, and fourth unit driving sections includes a driving coil and a driving yoke configured to move each of the first, second, third, and fourth unit driving sections in a second direction perpendicular to the first direction, and each of the three units faces the second direction. The first unit driving portion and the second unit driving portion are spaced apart from each other on the first side surface of the movable body, and the third unit driving portion and the fourth unit driving portion are spaced apart from each other on the second side surface of the movable body, with the first side surface and the second side surface arranged in opposite directions.

4. The sensor shifting module according to claim 3, wherein, When viewed in the second direction, the image sensor is disposed between the first unit driving portion and the second unit driving portion.

5. The sensor shifting module according to claim 3, wherein, The first unit driving portion and the third unit driving portion are arranged in the second direction, and the second unit driving portion and the fourth unit driving portion are arranged in the second direction.

6. The sensor shifting module according to claim 1, wherein, The movable body includes a first side surface and a third side surface extending from the corner of the movable body in different directions, and the driving unit includes a first unit driving portion and a fifth unit driving portion respectively disposed adjacent to the corner of the first side surface and the third side surface. The first unit driving section includes a driving coil and a driving yoke facing each other in a second direction perpendicular to the first direction, and the fifth unit driving section includes a driving coil and a driving yoke facing each other in a third direction perpendicular to the first direction, wherein the second direction and the third direction intersect each other.

7. The sensor shifting module according to claim 1, wherein, The surface of the drive yoke opposite the drive coil includes an inclined surface that extends from the center portion of the drive yoke to the end of the drive yoke.

8. The sensor shifting module according to claim 1, wherein, The driving yoke is made of a soft magnetic material.

9. The sensor shifting module according to claim 1, wherein, The driving unit further includes a first magnetic yoke disposed on a first side of the driving coil, wherein the driving coil is disposed between the driving magnetic yoke and the first magnetic yoke.

10. The sensor shifting module of claim 1, further comprising a substrate, the substrate mechanically connecting the movable body to the fixed body and configured to deform based on movement of the movable body relative to the fixed body.

11. The sensor shifting module according to claim 10, wherein, The substrate includes electrical traces electrically connected to the image sensor.

12. The sensor shifting module according to claim 11, wherein, The substrate includes a floating portion fixedly connected to the movable body, a fixed portion fixedly connected to the fixed body, and a support portion interconnecting the floating portion and the fixed portion. The support portion includes multiple bridging components, which embed the electrical traces therein.

13. The sensor shifting module according to claim 12, wherein, The support portion includes a guide disposed between the floating portion and the fixed portion, and the support portion is connected to the floating portion and the fixed portion via the plurality of bridging members.

14. The sensor shifting module according to claim 13, wherein, The plurality of bridging members include a first bridging member and a second bridging member, the first bridging member extending from the floating portion to the guide member in a second direction perpendicular to the first direction, and the second bridging member extending from the guide member to the fixed portion in a third direction perpendicular to the first direction, the second direction and the third direction intersecting each other.

15. The sensor shifting module according to claim 1, wherein, The drive unit further includes: a position sensor disposed on one of the fixed body and the movable body; and a sensing magnet disposed on the other of the fixed body and the movable body, and facing the position sensor in the first direction.

16. A camera module, including: Lens module, including at least one lens; as well as Sensor shifting module, The sensor shifting module includes: Fixed body; A movable body is movably disposed within the fixed body and includes an image sensor oriented in a first direction and a sensor substrate on which the image sensor is mounted. A substrate, which mechanically connects the movable body to the fixed body and is configured to deform based on the movement of the movable body relative to the fixed body; and The drive unit is configured to move the movable body relative to the fixed body in a direction perpendicular to the first direction, and to rotate the movable body about an axis parallel to the first direction. The driving unit includes a driving coil connected to one of the fixed body and the movable body, and a driving yoke connected to the other of the fixed body and the movable body. The driving yoke faces the driving coil in a second direction perpendicular to the first direction, and the space between the driving yoke and the driving coil is an air gap. The surface of the driving yoke opposite the driving coil is convex, and Wherein, the distance from the center portion of the driving yoke to the driving coil in the second direction is shorter than the distance from the first end and the second end of the driving yoke to the driving coil in the second direction.

17. The camera module according to claim 16, wherein, The driving yoke is made of a soft magnetic material.

18. The camera module according to claim 16, wherein, The driving unit includes a first unit driving section, a second unit driving section, a third unit driving section, and a fourth unit driving section. Each of the first unit driving section, the second unit driving section, the third unit driving section, and the fourth unit driving section includes a driving coil and a driving yoke configured to move each of the first unit driving section, the second unit driving section, the third unit driving section, and the fourth unit driving section in a second direction perpendicular to the first direction, and each of them faces the second direction. The first unit driving portion and the second unit driving portion are spaced apart from each other on the first side surface of the movable body, and the third unit driving portion and the fourth unit driving portion are spaced apart from each other on the second side surface of the movable body, with the first side surface and the second side surface in opposite directions.

19. Electronic devices, including: case; as well as A camera module, disposed within the housing, the camera module comprising: Lens module; A movable sensor carrier is mounted on a flexible substrate; and Multiple actuator units are configured to drive the movable sensor carrier in a first direction perpendicular to the optical axis and a second direction perpendicular to the optical axis, and are further configured to rotate the movable sensor carrier relative to the fixed body in a direction parallel to the optical axis, wherein the movable sensor carrier and the flexible substrate are disposed within the fixed body. The flexible substrate includes a floating portion on which the movable sensor carrier is disposed, a fixed portion fixed to the fixed body, and a support portion connecting the floating portion to the fixed portion. Each of the plurality of actuator unit drive sections includes a drive coil connected to one of the fixed body and the movable sensor carrier, and a drive yoke connected to the other of the fixed body and the movable sensor carrier. The surface of the driving yoke opposite the driving coil is convex, and The distance from the center portion of the driving yoke to the driving coil is shorter than the distance from the first end and the second end of the driving yoke to the driving coil.

20. The electronic device according to claim 19, wherein, The two actuator unit drive portions are disposed on each of the four sides of the movable sensor carrier.

21. The electronic device according to claim 19, wherein, The floating portion is configured to move relative to the fixed body.

22. The electronic device of claim 19 further includes a position sensor disposed on the base of the fixed body and configured to measure the movement of the movable sensor carrier in the first direction and the second direction, and to measure the amount of rotation of the movable sensor carrier.

23. The electronic device of claim 22, further comprising a sensing magnet disposed on the floating portion and configured to face the position sensor.

24. The electronic device according to claim 22, wherein, The position sensor is one of a Hall sensor and a magnetoresistive sensor.

Images