Camera module and image sensor module

Abstract

This disclosure relates to a camera module including a housing having an internal space, a lens module disposed within the internal space and slidably movable relative to the housing, and a drive portion configured to provide a driving force to move the lens module in an optical axis direction. The drive portion includes a line portion having a length that changes as power is applied to the line portion. The lens module includes a guide portion configured to guide the movement of the lens module in the optical axis direction, and the line portion contacts and is supported by the guide portion. This disclosure also relates to an image sensor module.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2021-0151399, filed on November 5, 2021, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes. Technical Field

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

[0004] Recently, camera modules have become standard equipment in portable electronic devices such as mobile terminals, tablet PCs, laptops, and smartphones. Autofocus (AF) and optical image stabilization (OIS) functions have been added to camera modules found in mobile terminals.

[0005] An actuator in the camera module is used to move the lens in the direction of the optical axis and in the direction perpendicular to the optical axis to perform AF and OIS functions.

[0006] In related technologies, actuators can use driving forces generated by magnets and coils to move lenses.

[0007] When moving a lens using an actuator that includes a magnet and a coil according to related technologies, the size of the magnet and coil included in the actuator may make it difficult to miniaturize the camera module.

[0008] Furthermore, in actuators that include magnets and coils, the magnetic field generated by the magnets and coils may have electromagnetic effects on other components of the camera module or other electronic components outside the camera module. Summary of the Invention

[0009] 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.

[0010] In one general aspect, the camera module includes: a housing having an internal space; a lens module disposed within the internal space of the housing for slidable movement relative to the housing; and a drive unit configured to provide a driving force to move the lens module in an optical axis direction, wherein the drive unit includes a line portion having a length that changes as power is applied to the line portion, the lens module includes a guide portion configured to guide the movement of the lens module in the optical axis direction, and the line portion contacts and is supported by the guide portion.

[0011] The guide section can contact the inner surface of the housing.

[0012] The guiding portion may include a guiding protrusion that protrudes from the side surface of the lens module toward the inner surface of the housing in a direction perpendicular to the optical axis.

[0013] The inner surface of the housing may include a guide groove that accommodates at least a portion of the guide protrusion.

[0014] The guide groove can extend in the direction of the optical axis.

[0015] The guiding portion may include a first guiding portion protruding in a first direction perpendicular to the optical axis and a second guiding portion protruding in a second direction perpendicular to both the optical axis and the first direction.

[0016] The line portion can contact and be supported by the first guide portion and the second guide portion.

[0017] The line portion may include a first line and a second line, and the first line and the second line may be bent in opposite directions relative to the guide portion.

[0018] The drive unit may also include two first wire pins disposed in the housing; and two second wire pins disposed in the housing, wherein the opposite ends of the first wires can be fixed to the first wire pins, and the opposite ends of the second wires can be fixed to the second wire pins.

[0019] The camera module may also include a fixed protrusion disposed in the housing to support the first line and the second line, and the first line and the second line may be arranged to be spaced apart from each other in a direction perpendicular to the optical axis.

[0020] The fixing protrusion may include: a first groove, in which a first line is disposed; and a second groove, in which a second line is disposed, and the first groove and the second groove may be spaced apart from each other in a direction perpendicular to the optical axis.

[0021] The camera module may also include an image sensor module coupled to the housing, wherein the image sensor module may include: an image sensor; a first sensor driving portion configured to move the image sensor in a first direction perpendicular to the optical axis; and a second sensor driving portion configured to move the image sensor in a second direction perpendicular to both the optical axis and the first direction, wherein the image sensor and the first sensor driving portion may move together through the second sensor driving portion.

[0022] The first sensor driving section may include: a movable plate on which an image sensor is mounted; a first lever rotatably mounted on the movable plate and configured to move the image sensor; and a third wire connected to the first lever and having a length that changes in response to the application of power to the third wire connected to the first lever.

[0023] The second sensor drive portion may include: a base on which the first sensor drive portion is disposed; a second lever rotatably disposed on the base and configured to move the first sensor drive portion; and a fourth wire connected to the second lever and having a length that changes in response to applying power to the fourth wire connected to the second lever.

[0024] The image sensor module may also include a circuit board electrically connected to the image sensor, and at least a portion of the circuit board may be configured to be flexible.

[0025] In another general aspect, the image sensor module includes: an image sensor; and a first sensor driving portion configured to move the image sensor in a first direction parallel to the surface of the image sensor, wherein the first sensor driving portion includes a first line having a length that changes in a second direction in response to the application of power to the first line, the second direction being perpendicular to the first direction and parallel to the surface of the image sensor, and the first sensor driving portion is further configured to move the image sensor in the first direction in response to the change in the length of the first line in the second direction in response to the application of power to the first line.

[0026] The first sensor driving section may further include a first lever having a first end connected to one end of a first wire and configured to rotate and move the image sensor in the first direction in response to a change in the length of the first wire in response to the application of power to the first wire in a second direction.

[0027] The image sensor module may further include: a frame on which the image sensor is disposed; a plate; and two first guide units disposed on opposite edges of the plate in a second direction, wherein the two first guide units may be configured to support the frame such that the frame is movable in the first direction, and a first lever may be rotatably mounted on the plate such that a second end of the first lever contacts the frame and pushes the frame and the image sensor in the first direction in response to a change in the length of a first wire in response to an application of power to the first wire.

[0028] The image sensor module may further include a second sensor driving portion configured to move the image sensor in a second direction. The second sensor driving portion may include a second line having a length that changes in a first direction in response to the application of power to the second line. The second sensor driving portion may also be configured to move the image sensor in a second direction in response to the change in the length of the second line in a first direction in response to the application of power to the second line.

[0029] The first sensor driving portion may further include a first lever having a first end connected to one end of a first wire and configured to rotate and move an image sensor in a second direction in response to changes in the length of the first wire in response to the application of power to the first wire, and the second sensor driving portion may further include a second lever having a first end connected to one end of a second wire and configured to rotate and move an image sensor in a second direction in response to changes in the length of the second wire in response to the application of power to the second wire in response to changes in the first direction.

[0030] The image sensor module may further include: a frame in which the image sensor is disposed; a movable plate; two first guide units disposed on opposite edges of the movable plate in a second direction; a base; and two second guide units disposed on opposite edges of the base in the first direction, wherein the two first guide units may be configured to support the frame such that the frame is movable in the first direction, a first lever may be rotatably mounted on the movable plate such that a second end of the first lever contacts the frame and pushes the frame and the image sensor in the first direction in response to a change in the length of a first line in response to an application of power to the first line, the two second guide units may be configured to support the movable plate such that the movable plate is movable in the second direction, and a second lever may be rotatably mounted on the base such that a second end of the second lever contacts one of the two first guide units and pushes the movable plate, the frame, and the image sensor in the second direction in response to a change in the length of a second line in response to an application of power to the second line.

[0031] Other features and aspects will become apparent from the appended claims, the accompanying drawings, and the detailed description below. Attached Figure Description

[0032] Figure 1 This is a schematic 3D diagram based on the example camera module.

[0033] Figure 2 It is a partially exploded stereoscopic view of the camera module in the example.

[0034] Figure 3 yes Figure 2An 3D view of the assembled components shown.

[0035] Figure 4 This is a diagram showing an example in which the first and second wire pins are connected to the housing.

[0036] Figure 5 yes Figure 3 Side sectional view.

[0037] Figure 6 yes Figure 2 Floor plan.

[0038] Figure 7 This is a schematic 3D diagram based on the example camera module.

[0039] Figure 8 yes Figure 7 Side sectional view.

[0040] Figure 9 yes Figure 7 Floor plan.

[0041] Figure 10 This is a view showing the state in which the lens module, according to the example, moves upward in the direction of the optical axis (Z-axis) within the camera module.

[0042] Figure 11 This is a view showing the state in which the lens module, according to the example, moves downward in the direction of the optical axis (Z-axis) within the camera module.

[0043] Figure 12 It is an exploded stereo diagram based on the example image sensor module.

[0044] Figure 13 It is an exploded stereo view of the first sensor driving section included in the image sensor module according to the example.

[0045] Figure 14 It is an exploded stereo view of the second sensor driving section included in the image sensor module according to the example.

[0046] Figure 15 It is a stereoscopic view based on the example image sensor module.

[0047] Figure 16 It is along Figure 15 The sectional view taken by line XVI-XVI' in the middle.

[0048] Figure 17 It is along Figure 15 The sectional view taken from line XVII-XVII' in the middle.

[0049] Figure 18A and Figure 18BThis is a reference view showing the drive unit included in the image sensor module according to the example.

[0050] Figures 19A to 19F This is a reference view showing the drive of the image sensor in the image sensor module according to the example.

[0051] Figure 20 This is a view showing the state of the image sensor module connected to the camera module, based on the example.

[0052] Throughout the accompanying drawings and detailed embodiments, the same reference numerals refer to the same elements. For purposes of clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative dimensions, scale, and depiction of elements in the drawings may be exaggerated. Detailed Implementation

[0053] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents to the methods, apparatus, and / or systems described herein will become apparent upon 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, as will become apparent upon understanding the disclosure of this application. Furthermore, for clarity and conciseness, descriptions of features well-known in the art may be omitted.

[0054] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein are provided merely to illustrate some of the many possible ways in which the methods, apparatuses, and / or systems described herein will become apparent upon understanding the disclosure of this application.

[0055] 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.

[0056] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more items.

[0057] 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.

[0058] 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.

[0059] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the articles “a,” “an,” and “the” are intended to include the plural form as well. The terms “comprising,” “including,” and “having” indicate the presence of the stated features, numbers, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, operations, components, elements, and / or combinations thereof.

[0060] The camera module shown in the example can be installed in a mobile electronic device. The mobile electronic device can be a portable electronic device such as a mobile communication terminal, a smartphone, or a desktop personal computer (PC).

[0061] Figure 1 This is a schematic 3D diagram based on the example camera module. Figure 2 It is a partially exploded stereoscopic view based on the example camera module. Figure 3 yes Figure 2 The assembly 3D diagram of the components shown. Figure 4 This diagram shows an example of the first and second wire pins being connected to the housing. Figure 5 yes Figure 3 The side sectional view, and Figure 6 yes Figure 2 Floor plan.

[0062] Reference Figure 1 The camera module, as shown in the example, includes a lens module 2000, a housing 1000, and a drive section 3000.

[0063] The lens module 2000 may include a lens barrel 2100 in which at least one lens is disposed. The at least one lens may be disposed inside the lens barrel 2100. When multiple lenses are disposed, the multiple lenses are mounted in the lens barrel 2100 along the optical axis (Z-axis).

[0064] The lens module 2000 may also include a lens holder 2300 connected to the lens barrel 2100.

[0065] The lens holder 2300 may include a hole passing through the lens holder 2300 in the optical axis (Z-axis) direction, and the lens barrel 2100 may be inserted into the hole of the lens holder 2300 to be fixedly disposed relative to the lens holder 2300.

[0066] The lens module 2000 can be located inside the housing 1000 and can be moved in the direction of the optical axis (Z axis) to perform the autofocus (AF) function.

[0067] In the example, the lens module 2000 may be a movable component that moves in the optical axis (Z-axis) direction during autofocus (AF). Therefore, the camera module according to the example may include a drive section 3000.

[0068] The lens module 2000 can be moved in the direction of the optical axis (Z axis) by the drive part 3000 to focus the lens in the lens module 2000 on the object.

[0069] The drive section 3000 may include a wire section 3100 having a length that changes when power is supplied to the wire section 3100. The wire section 3100 may include multiple wires, and each of the multiple wires may be a shape memory alloy wire.

[0070] For example, the line portion 3100 may include a first line 3110 that moves the lens module 2000 upward in the optical axis (Z-axis) direction and a second line 3130 that moves the lens module 2000 downward in the optical axis (Z-axis) direction.

[0071] The lens module 2000 can be moved relative to the housing 1000 in the optical axis (Z-axis) direction by a driving force generated by the change in length of the first line 3110 and the second line 3130.

[0072] Reference Figures 2 to 6The structure of a lens module 2000 that moves upward along the optical axis (Z-axis) is described.

[0073] The lens module 2000 can be moved relative to the housing 1000 via the drive portion 3000. The lens module 2000 may include a guide portion 2500 that guides the movement of the lens module 2000 in the optical axis (Z-axis) direction.

[0074] The guide portion 2500 can be disposed on the side surface of the lens module 2000 to contact and be supported by the inner surface of the housing 1000. For example, the guide portion 2500 can move in the optical axis (Z-axis) direction while being supported by the housing 1000.

[0075] For example, the lens module 2000 can slide relative to the housing 1000 while at least a portion of the guide portion 2500 is in contact with the inner surface of the housing 1000.

[0076] The inner surface of the housing 1000 may be provided with a guide groove 1100 therein, which accommodates at least a portion of the guide portion 2500. The guide groove 1100 may extend to have a length in the optical axis (Z-axis) direction.

[0077] Therefore, the lens module 2000 can be guided to move relative to the housing 1000 in a direction parallel to the optical axis (Z-axis) by the guide portion 2500 and the guide groove 1100.

[0078] The guide groove 1100 may be provided with a lubricant to reduce the friction generated by the movement of the guide portion 2500.

[0079] The number of guide sections 2500 can be set as many as the number of guide slots 1100. For example, four guide sections 2500 and four guide slots 1100 can be set.

[0080] The guide portion 2500 may include a first guide portion 2510 and a second guide portion 2530, which protrude from the side surface of the lens module 2000 toward the inner surface of the housing 1000 in a direction perpendicular to the optical axis (Z-axis).

[0081] As an example, the guide portion 2500 may include a first guide portion 2510 protruding in a second direction (Y-axis direction) perpendicular to the optical axis (Z-axis) and a second guide portion 2530 protruding in a first direction (X-axis direction) perpendicular to both the optical axis (Z-axis) and the second direction (Y-axis).

[0082] In the example, each of the first guide portion 2510 and the second guide portion 2530 may include a protrusion projecting from the side surface of the lens module 2000 and a guide protrusion projecting from the protrusion.

[0083] The configuration of protrusions can be increased as needed, and each of the first guide portion 2510 and the second guide portion 2530 may consist of only guide protrusions.

[0084] In the example, the guide protrusion can be configured such that the portion contacting the inner surface of the housing 1000 has a circular shape. For this purpose, the guide protrusion can make point contact with the inner surface of the housing 1000. Therefore, the frictional force generated during movement can be reduced.

[0085] The first guide portion 2510 may include a first protrusion 2511 protruding from the side surface of the lens module 2000 in a second direction (Y-axis direction) and a first guide protrusion 2513 protruding from the first protrusion 2511.

[0086] The second guide portion 2530 may include a second protrusion 2531 protruding from the side surface of the lens module 2000 in a first direction (X-axis direction) and a second guide protrusion 2533 protruding from the second protrusion 2531.

[0087] The drive section 3000 may include a first wire 3110 and a first wire pin 3300. The length of the first wire 3110 may change as power is applied to the first wire 3110. For example, the first wire 3110 may be a shape memory alloy wire.

[0088] The first line 3110 may include a pair of lines spaced apart from each other in the second direction (Y-axis direction).

[0089] The lens module 2000 can move upward in the optical axis (Z-axis) direction by the driving force generated by the change in length of the first line 3110.

[0090] The length variation of the first line 3110 can be proportional to the magnitude of the voltage or current applied to the first line 3110, or it can be proportional to the duration of the applied power.

[0091] The first line 3110 can be configured to contact and be supported by the guide portion 2500 of the lens module 2000. For example, the first line 3110 can contact and be supported by the first guide portion 2510 or the second guide portion 2530 of the lens module 2000.

[0092] The following description will provide an example of the first line 3110 contacting and being supported by the first guide portion 2510 of the lens module 2000.

[0093] The first line 3110 can be configured to be curved relative to the first guide portion 2510.

[0094] When the first line 3110 is configured to span the first guide portion 2510, the first guide portion 2510 can be pushed upward in the optical axis (Z-axis) direction as the length of the first line 3110 changes.

[0095] The first guide portion 2510 may be provided with a first receiving groove 2515, and the first line 3110 is received in the first receiving groove 2515.

[0096] The opposite ends of the first wire 3110 can be fixed to the first wire pin 3300. The first wire pin 3300 can be connected to the housing 1000 and can be made of a conductive material. Electricity can be applied to the first wire 3110 through the first wire pin 3300.

[0097] A fixing protrusion 1300 supporting the first line 3110 may be disposed in the housing 1000. The fixing protrusion 1300 may be provided with a first groove 1310, in which the first line 3110 is accommodated. The first groove 1310 may extend along the periphery of the fixing protrusion 1300.

[0098] A portion of the first line 3110 can be bent to fit into the first groove 1310 of the fixing protrusion 1300.

[0099] Figure 7 This is a schematic 3D diagram based on the example camera module. Figure 8 yes Figure 7 The side sectional view, and Figure 9 yes Figure 7 Floor plan.

[0100] Reference Figures 7 to 9 The structure of the lens module 2000 that moves downward in the direction of the optical axis (Z-axis) is described.

[0101] The drive section 3000 may include a second wire 3130 and a second wire pin 3500. The length of the second wire 3130 may change as power is applied to the second wire 3130. For example, the second wire 3130 may be a shape memory alloy wire.

[0102] The second line 3130 may include a pair of lines spaced apart from each other in the second direction (Y-axis direction).

[0103] The lens module 2000 can move downward in the direction of the optical axis (Z axis) by the driving force generated by the change in the length of the second line 3130.

[0104] The length variation of the second line 3130 can be proportional to the magnitude of the voltage or current applied to the second line 3130, or it can be proportional to the duration of the applied power.

[0105] The second line 3130 may be configured to contact and be supported by the guide portion 2500 of the lens module 2000. For example, the second line 3130 may contact and be supported by the first guide portion 2510 or the second guide portion 2530 of the lens module 2000.

[0106] The following description will provide an example of the second line 3130 contacting and being supported by the first guide portion 2510 of the lens module 2000.

[0107] The second line 3130 can be configured to be curved relative to the first guide portion 2510.

[0108] When the second line 3130 is configured to span the first guide portion 2510, the first guide portion 2510 can move downward in the optical axis (Z-axis) direction as the length of the second line 3130 changes.

[0109] The first line 3110 and the second line 3130 can be bent in opposite directions relative to the first guide portion 2510. Therefore, the driving force generated by the first line 3110 and the driving force generated by the second line 3130 can be applied in opposite directions.

[0110] The first guide portion 2510 may be provided with a second receiving groove 2517, and the second line 3130 is received in the second receiving groove 2517.

[0111] The first receiving groove 2515, which accommodates the first line 3110, and the second receiving groove 2517, which accommodates the second line 3130, may differ in their positions in the optical axis (Z-axis) and the second direction (Y-axis).

[0112] The first line 3110 and the second line 3130 can be spaced apart from each other in the second direction (Y-axis direction).

[0113] The opposite end of the second wire 3130 can be fixed to the second wire pin 3500. The second wire pin 3500 can be connected to the housing 1000 and can be made of a conductive material. Electricity can be applied to the second wire 3130 through the second wire pin 3500.

[0114] A fixing protrusion 1300 supporting the second line 3130 can be disposed in the housing 1000. The fixing protrusion 1300 can be provided with a second groove 1330, in which the second line 3130 is accommodated. The second groove 1330 can extend along the periphery of the fixing protrusion 1300.

[0115] The first groove 1310 containing the first line 3110 and the second groove 1330 containing the second line 3130 can be arranged to be spaced apart from each other in the second direction (Y-axis direction).

[0116] A portion of the second line 3130 can be bent to fit into the second groove 1330 of the fixing protrusion 1300.

[0117] Figure 10 This is a view showing the state in which the lens module, according to the example, moves upward in the optical axis (Z-axis) direction within the camera module, and Figure 11 This is a view showing the state in which the lens module, according to the example, moves downward in the direction of the optical axis (Z-axis) within the camera module.

[0118] Reference Figure 10 When power is applied to the first line 3110, the length of the first line 3110 can be changed to move the lens module 2000 upward in the direction of the optical axis (Z axis).

[0119] Reference Figure 11 When power is applied to the second line 3130, the length of the second line 3130 can be changed to move the lens module 2000 downward in the direction of the optical axis (Z axis).

[0120] Figure 12 It is an exploded stereo diagram based on the example image sensor module.

[0121] The camera module according to the example may also include an image sensor module 10. The image sensor module 10 may be coupled to the housing 1000.

[0122] The image sensor module 10 can move the image sensor 100 in a direction perpendicular to the optical axis (Z-axis) to correct for shaking when capturing images.

[0123] For example, refer to Figure 12 The image sensor module 10 can move the image sensor 100 in a plane perpendicular to the optical axis (Z-axis) in response to the shaking of the camera module to perform optical image stabilization (OIS) function.

[0124] The image sensor module 10 may include an image sensor 100, a frame 110 on which the image sensor 100 is mounted, a first sensor driving part 200 that movably supports the frame 110, a second sensor driving part 300 that movably supports the first sensor driving part 200, and a circuit board 400 electrically connected to the image sensor 100.

[0125] At least a portion of the circuit board 400 can be configured to be flexible.

[0126] The image sensor 100, the first sensor driving part 200, the second sensor driving part 300, and the circuit board 400 can be arranged in the direction of the optical axis (Z axis) of the lens module 2000.

[0127] For example, such as Figure 12 As shown, the image sensor 100 can be disposed on the first sensor driving part 200, the first sensor driving part 200 can be disposed on the second sensor driving part 300, and the second sensor driving part 300 can be disposed on the circuit board 400.

[0128] The image sensor 100, the first sensor driving part 200, the second sensor driving part 300 and the circuit board 400 can be stacked and arranged sequentially in the optical axis (Z axis) direction.

[0129] Image sensor 100 can be coupled to frame 110 to be movable relative to first sensor drive portion 200. For example, as Figure 12 As shown, the frame 110 connected to the image sensor 100 can be configured to move on the upper surface of the first sensor drive portion 200 in a direction perpendicular to the optical axis (Z-axis) (e.g., the X-axis and / or Y-axis).

[0130] The first sensor drive section 200 can move the frame 110 to which the image sensor 100 is attached in a first direction (e.g., the X-axis direction) perpendicular to the optical axis (Z-axis).

[0131] The first sensor driving section 200 may include a movable plate 210 that movably supports the image sensor 100 and one or more driving units 220 and 230 that move the image sensor 100.

[0132] The second sensor driving section 300 can move the first sensor driving section 200 in a direction different from the first direction (X-axis direction). For example, the second sensor driving section 300 can move the first sensor driving section 200 in a second direction (e.g., Y-axis direction) that is perpendicular to both the optical axis (Z-axis) and the first direction (X-axis direction).

[0133] The second sensor driving section 300 may include a base 310 that movably supports the movable plate 210 of the first sensor driving section 200, and one or more driving units 320 and 330 that move the movable plate 210.

[0134] In the example, the second sensor driving section 300 can move together with the first sensor driving section 200 and the image sensor 100. For example, when the first sensor driving section 200 is moved by the second sensor driving section 300 in the second direction (Y-axis direction), the image sensor 100 supported by the first sensor driving section 200 can also move together with the first sensor driving section 200 in the same direction as the first sensor driving section 200.

[0135] According to the example, the image sensor module 10 can move the image sensor 100 in a first direction (X-axis direction) and / or a second direction (Y-axis direction) to perform optical image stabilization (OIS) function.

[0136] The circuit board 400 can be disposed below the second sensor driving section 300. The circuit board 400 can be electrically connected to the image sensor 100 to receive image information from the image sensor 100.

[0137] The circuit board 400 can be electrically connected to one or more drive units 220, 230, 320 and 330 included in the first sensor drive section 200 and the second sensor drive section 300 to apply power to the drive units 220, 230, 320 and 330 and send control signals.

[0138] In the following text, reference will be made to Figure 13 The description is based on the first sensor drive section 200 of the example.

[0139] Figure 13 It is an exploded stereo view of the first sensor driving section included in the image sensor module according to the example.

[0140] The first sensor driving section 200 can move the image sensor 100 and the frame 110 on which the image sensor 100 is mounted in a first direction (e.g., the X-axis direction) perpendicular to the optical axis (Z-axis).

[0141] The first sensor driving section 200 may include a movable plate 210 on which a frame 110 is disposed, and one or more driving units 220 and 230 disposed on the movable plate 210 and moving the frame 110.

[0142] The drive units 220 and 230 may each include lines 221 and 231, which have lengths that change when power is applied to them, and can move the image sensor 100 by a driving force generated according to the change in length of the lines 221 and 231.

[0143] The image sensor 100 or the frame 110 on which the image sensor 100 is mounted is movably disposed on the movable plate 210.

[0144] For example, such as Figure 13 As shown, the movable plate 210 may include a first guide unit 240 disposed on the movable plate 210 and extending in a first direction (X-axis direction). The first guide unit 240 may include a recess therein that can accommodate at least a portion of the frame 110. At least a portion of the frame 110 may be inserted into the first guide unit 240 to be slidably moved in the direction in which the first guide unit 240 extends (e.g., the X-axis direction).

[0145] The first guide unit 240 can be configured as one or more first guide units 240. For example, two first guide units 240 can be disposed on opposite edges of the movable plate 210 and can extend in a first direction (X-axis direction).

[0146] The movable plate 210 can be configured as a plate-shaped member having at least a partial surface perpendicular to the optical axis (Z-axis). Therefore, the frame 110 can move along the movable plate 210 in a direction perpendicular to the optical axis (Z-axis) (e.g., the X-axis direction). However, the shape of the movable plate 210 is not limited to a plate shape and can have any of a variety of shapes.

[0147] The movable plate 210 may have a first opening 250 in the portion facing the image sensor 100. The image sensor 100, which is disposed on the upper surface of the movable plate 210, may be exposed to the circuit board 400 below the movable plate 210 through the first opening 250.

[0148] The circuit board 400 can be disposed below the first sensor driving part 200 and can be electrically connected to the image sensor 100 through the first opening 250 of the first sensor driving part 200.

[0149] The first sensor driving section 200 may include one or more driving units 220 and 230. For example, such as Figure 13 As shown, the first sensor driving part 200 may include a first driving unit 220 and a second driving unit 230 disposed on opposite sides of the frame 110.

[0150] The first drive unit 220 and the second drive unit 230 can be spaced apart from each other in the first direction (X-axis direction).

[0151] The first driving unit 220 and the second driving unit 230 of the first sensor driving part 200 can be located at a position different from the position of the first guiding unit 240 of the first sensor driving part 200.

[0152] For example, the first drive unit 220 and the second drive unit 230 can be disposed on opposite edges of the movable plate 210 where the first guide unit 240 is not disposed.

[0153] For example, such as Figure 13 As shown, when the movable plate 210 has a quadrilateral upper surface, the first guide unit 240 can be disposed on two opposite edges of the movable plate 210 that are spaced apart from each other in the second direction (Y-axis direction), and the first drive unit 220 and the second drive unit 230 can be disposed on two opposite edges of the movable plate 210 that are spaced apart from each other in the first direction (X-axis direction).

[0154] One of the first drive unit 220 and the second drive unit 230 can move or rotate the image sensor 100 relative to the movable plate 210. For example, the first drive unit 220 can move the frame 110 on which the image sensor 100 is mounted in a first direction (X-axis direction) relative to the movable plate 210.

[0155] The first drive unit 220 may include: a third line 221 having a length that changes when power is applied to the third line 221; a first lever 222 connected to the third line 221 and rotating about a predetermined axis of rotation according to the change in the length of the third line 221; and a first lever shaft 223 forming the axis of rotation of the first lever 222.

[0156] The third line 221 can receive power from an external power source (not shown) outside the first sensor drive section 200, and can have a length that changes when power is applied to the third line 221.

[0157] For example, the third wire 221 can be a shape memory alloy wire with a length that changes when electricity is applied to it. The change in length of the third wire 221 can be proportional to the magnitude of the voltage or current applied to it, or proportional to the duration of the applied voltage or current.

[0158] At least a portion of the third line 221 may be configured to extend in a direction perpendicular to the optical axis (Z-axis) (e.g., the Y-axis direction). When power is applied to the third line 221, the third line 221 may contract in a direction perpendicular to the optical axis (Z-axis) (e.g., the Y-axis direction).

[0159] One end of the third wire 221 can be fixed to the movable plate 210 by the first fixing member 224. The first fixing member 224 can be made of conductive material, and therefore one end of the third wire 221 can be electrically connected to an external power source (not shown) via the first fixing member 224.

[0160] The other end of the third wire 221 can be connected to the first lever 222. In the example, a first connecting member 225 can be further provided to connect the other end of the third wire 221 to the first lever 222. The first connecting member 225 can be made of a conductive material, and thus the other end of the third wire 221 can be electrically connected to an external power source (not shown) via the first connecting member 225.

[0161] For example, one end and the other end of the third line 221 can be electrically connected to an external power source (not shown) to receive power. When power is applied to the third line 221 and the length of the third line 221 is contracted, the tension of the third line 221 is transmitted to the first lever 222 connected to the third line 221.

[0162] The first lever 222 can be rotatably supported on the movable plate 210 via the first lever shaft 223.

[0163] The first lever 222 can be configured as a rigid rod-like member. For example, as... Figure 13 As shown, the first lever 222 can be configured as a rigid member extending continuously from the connecting portion 222a connected to the third line 221 to the contact portion 222b that contacts the frame 110. However, Figure 13 The shape of the first lever 222 shown is merely an example, and the first lever 222 can have any of a variety of shapes.

[0164] The first lever 222 can rotate about a rotation axis formed by the first lever axis 223. For example, as Figure 13 As shown, the first lever shaft 223 can pass through the first lever 222 to connect to the movable plate 210. Therefore, the first lever 222 can rotate clockwise or counterclockwise about the first lever shaft 223.

[0165] like Figure 13 As shown, the first lever shaft 223 may be an additional component inserted into the first lever 222. However, this is merely an example, and the first lever shaft 223 may be integrated with the first lever 222. For example, the first lever shaft 223 may be integrated with the first lever 222 and may be rotatably supported by the movable plate 210.

[0166] The first lever 222 may include a connecting portion 222a connected to the third line 221. The connecting portion 222a of the first lever 222 may be connected to the third line 221 via a first connecting member 225. When the connecting portion 222a of the first lever 222 and the third line 221 are in contact with each other, the first connecting member 225 may have the shape of a clamp or fixture fitted to the connecting portion 222a of the first lever 222.

[0167] The contact portion 222b of the first lever 222 can be configured to contact the frame 110. Depending on the length variation of the third line 221, the contact portion 222b of the first lever 222 can rotate to push and move the frame 110.

[0168] For example, when the third line 221 retracts to rotate the connecting portion 222a of the first lever 222, the contact portion 222b of the first lever 222 can also rotate to push and move the frame 110.

[0169] In the example, a portion of the contact frame 110 of the first lever 222 may have a curved surface. For example, as... Figure 13 As shown, the contact portion 222b of the first lever 222 contacting the frame 110 can have a curved surface. Therefore, the curved surface of the contact portion 222b can smoothly press the frame 110 while the first lever 222 rotates, and the moving distance of the frame 110 can be continuously changed according to the amount of rotation of the first lever 222.

[0170] A portion of the third thread 221 may be wound around the first roller 226 to connect to the first lever 222. For example, as Figure 13 As shown, at least a portion of the third thread 221, which is connected between one end of the first fixing member 224 and the other end of the first connecting member 225, can be wound around the first roller 226 to extend in different directions. Therefore, the first roller 226 can be configured to change the direction in which the third thread 221 extends.

[0171] The first roller 226 can be rotatably mounted on the movable plate 210 and can be configured such that a portion of the third thread 221 is wound around the first roller 226 so that it can rotate in response to changes in the length of the third thread 221.

[0172] The rotation axis of the first roller 226 can be formed by a first roller shaft 227. The first roller shaft 227 can pass through the first roller 226 to be connected to the movable plate 210. However, the first roller shaft 227 can be integrated with the first roller 226.

[0173] In the example, the first roller 226 can be positioned adjacent to the connecting portion 222a of the first lever 222. Therefore, a portion of the third line 221 extending from the first roller 226 to the connecting portion 222a of the first lever 222 can be positioned substantially perpendicular to the first lever 222. The third line 221 is connected to the first lever 222 in a vertical state, thereby generating a high torque in the first lever 222 due to the tension produced by the contraction of the length of the third line 221.

[0174] The first sensor driving section 200 may further include a second driving unit 230 separate from the first driving unit 220. The second driving unit 230 can move the frame 110 in a first direction (X-axis direction) perpendicular to the optical axis (Z-axis).

[0175] In the example, the second drive unit 230 may have the same structure as the first drive unit 220. For example, the second drive unit 230 may include: a fourth wire 231 having a length that changes when power is applied to the fourth wire 231; a second lever 232 connected to the fourth wire 231 and configured to be rotatable; and a second lever shaft 233 forming the rotation axis of the second lever 232.

[0176] In addition, the second drive unit 230 may include a second fixing member 234 that can fix the fourth line 231 to the movable plate 210 and a second connecting member 235 that can connect the second lever 232 and the fourth line 231 to each other.

[0177] In addition, the second drive unit 230 may also include a second roller 236 on which a portion of the fourth line 231 is wound and a second roller shaft 237 forming the rotating shaft of the second roller 236.

[0178] The fourth line 231, the second lever 232, the second lever shaft 233, the second fixing member 234, the second connecting member 235, the second roller 236, and the second roller shaft 237 may each have the same structure as the third line 221, the first lever 222, the first lever shaft 223, the first fixing member 224, the first connecting member 225, the first roller 226, and the first roller shaft 227 of the first drive unit 220 described above. Therefore, the description of the above-mentioned components of the second drive unit 230 that are the same as or similar to those of the first drive unit 220 will be omitted here, and only the differences between the second drive unit 230 and the first drive unit 220 will be described below.

[0179] like Figure 13 As shown, the fourth line 231 of the second drive unit 230 and the third line 221 of the first drive unit 220 can be disposed on opposite edges of the moving plate 210 and can extend parallel to each other.

[0180] The direction in which the third line 221 extends from the first roller 226 toward the first fixed member 224 may be opposite to the direction in which the fourth line 231 extends from the second roller 236 toward the second fixed member 234.

[0181] Since the first drive unit 220 and the second drive unit 230 are spaced apart from each other in the first direction (X-axis direction), the direction in which the frame 110 is driven by the first drive unit 220 and the direction in which the frame 110 is driven by the second drive unit 230 can be opposite to each other.

[0182] For example, the first drive unit 220 can move the frame 110 in the positive direction of the first direction (X-axis direction), and the second drive unit 230 can move the frame 110 in the negative direction of the first direction (X-axis direction).

[0183] For example, the frame 110 can be moved in both the positive and negative directions of the first direction (X-axis direction) by the first drive unit 220 and the second drive unit 230.

[0184] The rotational directions of the first lever 222 and the second lever 232, based on the contraction of the third line 221 and the fourth line 231, can be the same.

[0185] For example, when the third line 221 contracts, the first lever 222 can rotate clockwise to move the frame 110 in the positive direction of the first direction (X-axis direction).

[0186] When the fourth line 231 contracts, the second lever 232 can rotate clockwise to move the frame 110 in the negative direction of the first direction (X-axis direction).

[0187] The first drive unit 220 and the second drive unit 230 can be controlled independently of each other. For example, only one of the first drive unit 220 and the second drive unit 230 can be driven, or the first drive unit 220 and the second drive unit 230 can be driven sequentially. Therefore, the first sensor drive section 200 can appropriately move the image sensor 100 in a direction perpendicular to the optical axis (Z-axis) (e.g., the X-axis direction) to perform optical image stabilization (OIS) function.

[0188] In the example, the image sensor module 10 may further include a second sensor driving section 300, which can move the image sensor 100 in a direction different from the direction in which the first sensor driving section 200 moves the image sensor 100 (e.g., the X-axis direction).

[0189] In the following text, reference will be made to Figure 14 Describe the second sensor drive section 300.

[0190] Figure 14It is an exploded stereo view of the second sensor driving section included in the image sensor module according to the example.

[0191] The second sensor driving section 300 can move the first sensor driving section 200 in a direction perpendicular to the optical axis (Z-axis) (e.g., the Y-axis direction). For example, the second sensor driving section 300 can move the first sensor driving section 200 in a second direction (Y-axis direction) perpendicular to both the optical axis (Z-axis direction) and the first direction (X-axis direction).

[0192] When the first sensor driving part 200 moves in the second direction (Y-axis direction) via the second sensor driving part 300, the image sensor 100 disposed on the first sensor driving part 200 can also move together with the first sensor driving part 200 in the second direction (Y-axis direction) in the same way.

[0193] For example, the second sensor driving part 300 can move together with the first sensor driving part 200 and the image sensor 100 in the second direction (Y-axis direction).

[0194] The second sensor driving part 300 may include a base 310 on which the movable plate 210 of the first sensor driving part 200 is disposed, and one or more driving units 320 and 330 disposed on the base 310 and moving the movable plate 210.

[0195] One or more drive units 320 and 330 may include lines 321 and 331, which have lengths that change when power is applied to lines 321 and 331, and can move the movable plate 210 by a driving force generated according to the change in length of lines 321 and 331.

[0196] like Figure 14 As shown, the base 310 may include a second guide unit 340 extending in a second direction (Y-axis direction). The second guide unit 340 may include a groove therein in which at least a portion of the movable plate 210 may be received.

[0197] At least a portion of the movable plate 210 can be inserted into the second guide unit 340 so as to be slidably movable relative to the upper surface of the base 310 in the direction in which the second guide unit 340 extends. The second guide unit 340 can be configured as one or more second guide units 340. For example, two second guide units 340 can be disposed on opposite edges of the base 310 and can extend in a second direction (Y-axis direction).

[0198] In the example, the direction in which the second guide unit 340 extends and the direction in which the first guide unit 240 extends can be perpendicular to each other. For example, the first guide unit 240 can extend in a first direction (X-axis direction), and the second guide unit 340 can extend in a second direction (Y-axis direction).

[0199] Since the first guide unit 240 and the second guide unit 340 extend in directions perpendicular to each other, the frame 110 and the movable plate 210 can move along the first guide unit 240 and the second guide unit 340 in directions perpendicular to each other.

[0200] The base 310 can be configured as a plate-shaped member having at least a partial surface perpendicular to the optical axis (Z-axis). Therefore, the movable plate 210 can move along the base 310 in a direction perpendicular to the optical axis (Z-axis). However, the shape of the base 310 is not limited to a plate shape, and the base 310 can have any of a variety of shapes.

[0201] The base 310 may include a second opening 350 in the portion facing the image sensor 100. The second opening 350 of the base 310 and... Figure 13 The first opening 250 of the movable plate 210 shown can be configured to be interconnected. Therefore, the circuit board 400 can be electrically connected to the image sensor 100 through the first opening 250 and the second opening 350.

[0202] The second sensor driving section 300 may include one or more driving units 320 and 330. For example, such as Figure 14 As shown, the second sensor driving part 300 may include a third driving unit 320 and a fourth driving unit 330 disposed on opposite sides of the base 310.

[0203] One or more drive units 320 and 330 included in the second sensor drive section 300 can move or rotate the first sensor drive section 200 relative to the base 310.

[0204] For example, the third drive unit 320 can move the first sensor drive portion 200 and the image sensor 100 together in the second direction (Y-axis direction) relative to the base 310. For example, the first sensor drive portion 200 and the image sensor 100 disposed in the first sensor drive portion 200 can be moved together in the second direction (Y-axis direction) by the driving force generated by the third drive unit 320.

[0205] One or more drive units 320 and 330 included in the second sensor drive section 300 may have the same characteristics as the reference. Figure 13The first drive unit 220 described has the same structure. For example, the third drive unit 320 and the fourth drive unit 330 of the second sensor drive section 300 may have the same structure as the first drive unit 220.

[0206] For example, the third drive unit 320 may include: a fifth line 321 having a length that changes when power is applied to the fifth line 321; a third lever 322 connected to the fifth line 321 and rotating about a predetermined rotation axis according to the change in the length of the fifth line 321; and a third lever shaft 323 forming the rotation axis of the third lever 322.

[0207] The third lever 322 of the third drive unit 320 may include a connecting portion 322a and a contact portion 322b, and the third connecting member 325 may be connected to the connecting portion 322a of the third lever 322. The fifth line 321 may be fixed to the base 310 by the third fixing member 324.

[0208] The third drive unit 320 may also include a third roller 326 on which a portion of the fifth line 321 is wound and a third roller shaft 327 forming the rotating shaft of the third roller 326.

[0209] Similarly, the fourth drive unit 330 may include: a sixth line 331 having a length that changes when power is applied to the sixth line 331; a fourth lever 332 connected to the sixth line 331 and rotating about a predetermined axis of rotation according to the change in the length of the sixth line 331; and a fourth lever shaft 333 forming the axis of rotation of the fourth lever 332.

[0210] A fourth connecting member 335 may be provided to connect the sixth line 331 and the fourth lever 332 of the fourth drive unit 330 to each other. The sixth line 331 may be fixed to the base 310 by a fourth fixing member 334. The fourth drive unit 330 may also include a fourth roller 336 on which a portion of the sixth line 331 is wound and a fourth roller shaft 337 forming the rotation axis of the fourth roller 336.

[0211] In the following text, the description of the same or similar elements of the third drive unit 320 and the fourth drive unit 330 as the first drive unit 220 will be omitted, and only the differences between the third drive unit 320 and the fourth drive unit 330 and the first drive unit 220 will be described below.

[0212] At least one of the third drive unit 320 and the fourth drive unit 330, included in the second sensor drive section 300 according to the example, may be disposed on the base 310. For example, as Figure 14 As shown, the third drive unit 320 and the fourth drive unit 330 can be disposed on opposite edges of the base 310.

[0213] In the example, the third drive unit 320 and the fourth drive unit 330 of the second sensor drive section 300 may be located at positions different from the position of the second guide unit 340 of the second sensor drive section 300.

[0214] For example, the third drive unit 320 and the fourth drive unit 330 may be disposed on opposite edges of the base 310 where the second guide unit 340 is not disposed.

[0215] like Figure 14 As shown, when the base 310 has a quadrilateral upper surface, the second guide unit 340 can be disposed on two opposite edges of the base 310 that are spaced apart from each other in the first direction (X-axis direction), and the third drive unit 320 and the fourth drive unit 330 can be disposed on two opposite edges of the base 310 that are spaced apart from each other in the second direction (Y-axis direction).

[0216] The third drive unit 320 and the fourth drive unit 330 of the second sensor drive section 300 can be configured adjacent to the first guide unit 240 of the first sensor drive section 200. Therefore, the third drive unit 320 and the fourth drive unit 330 of the second sensor drive section 300 can push the first guide unit 240 of the first sensor drive section 200 to move the first sensor drive section 200.

[0217] The fifth line 321 of the third drive unit 320 and the sixth line 331 of the fourth drive unit 330 can be disposed on opposite edges of the base 310 and can extend parallel to each other.

[0218] The direction in which the fifth line 321 extends from the third roller 326 toward the third fixed member 324 can be opposite to the direction in which the sixth line 331 extends from the fourth roller 336 toward the fourth fixed member 334.

[0219] Since the third drive unit 320 and the fourth drive unit 330 are spaced apart from each other in the second direction (Y-axis direction), the direction in which the first sensor drive portion 200 is driven by the third drive unit 320 and the direction in which the first sensor drive portion 200 is driven by the fourth drive unit 330 can be opposite to each other.

[0220] For example, the third drive unit 320 can push and move the first sensor drive portion 200 in the positive direction of the second direction (Y-axis direction), and the fourth drive unit 330 can push and move the first sensor drive portion 200 in the negative direction of the second direction (Y-axis direction).

[0221] For example, the first sensor driving section 200 can be moved in the positive and negative directions of the second direction (Y-axis direction) by the third driving unit 320 and the fourth driving unit 330.

[0222] The third driving unit 320 and the fourth driving unit 330 of the second sensor driving section 300 can be disposed on opposite sides of the image sensor 100 in the second direction (Y-axis direction), and the first driving unit 220 and the second driving unit 230 of the first sensor driving section 200 can be disposed on opposite sides of the image sensor 100 in a first direction (X-axis direction) intersecting the second direction (Y-axis direction). For example, when the image sensor module 10 is viewed from above, the first driving unit 220, the second driving unit 230, the third driving unit 320, and the fourth driving unit 330 can be disposed adjacent to the four side surfaces of the image sensor 100.

[0223] In the following text, reference will be made to Figures 15 to 17 The structure of an image sensor module 10, including a first drive unit 220, a second drive unit 230, a third drive unit 320, and a fourth drive unit 330, is described according to an example.

[0224] Figure 15 It is based on the stereoscopic diagram of the example image sensor module. Figure 16 It is along Figure 15 The sectional view taken by line XVI-XVI' in the middle, and Figure 17 It is along Figure 15 The sectional view taken from line XVII-XVII' in the middle.

[0225] The image sensor module 10 may include an image sensor 100 that converts incident light in the optical axis (Z-axis) direction into an electrical signal, and one or more driving units 220, 230, 320 and 330 that move the image sensor 100.

[0226] Image sensor 100 can be disposed in frame 110 having an opening. Frame 110 can be formed of a plate-like member with an opening, and light can be incident on image sensor 100 through the opening. However, the shape of frame 110 is not limited to a plate shape, and frame 110 can have any of a variety of shapes. Alternatively, frame 110 can be integrated with image sensor 100.

[0227] The frame 110 can be movably mounted on the movable plate 210 of the first sensor driving part 200.

[0228] The movable plate 210 can be movably mounted on the base 310 of the second sensor driving section 300.

[0229] The frame 110, the movable plate 210, and the base 310 can be stacked in the optical axis (Z-axis) direction. In addition, the circuit board 400 electrically connected to the image sensor 100 can be disposed below the base 310.

[0230] The direction in which frame 110 moves relative to movable plate 210 and the direction in which movable plate 210 moves relative to base 310 can intersect each other. For example, as Figure 15 As shown, the frame 110 can be configured to move relative to the movable plate 210 in a first direction (X-axis direction), and the movable plate 210 can be configured to move relative to the base 310 in a second direction (Y-axis direction).

[0231] Therefore, the image sensor 100 connected to the frame 110 can be configured to be movable in both the first direction (X-axis direction) and the second direction (Y-axis direction).

[0232] The image sensor module 10 may include one or more drive units 220, 230, 320 and 330 that can move the image sensor 100 in a direction perpendicular to the optical axis (Z-axis) (XY plane).

[0233] The multiple driving units 220, 230, 320 and 330 included in the image sensor module 10 can be disposed on different layers of the image sensor module 10.

[0234] For example, such as Figure 15 As shown, the first drive unit 220 and the second drive unit 230 can be disposed on the movable plate 210, and the third drive unit 320 and the fourth drive unit 330 can be disposed on the base 310 disposed below the movable plate 210.

[0235] Multiple lines included in multiple drive units 220, 230, 320 and 330 can move the image sensor 100 in a direction different from the length direction of the lines.

[0236] For example, a portion of the third line 221 of the first drive unit 220 may be formed to extend in the second direction (Y-axis direction), and as the length of the third line 221 changes, the image sensor 100 moves in the first direction (X-axis direction) perpendicular to the second direction (Y-axis direction).

[0237] Furthermore, a portion of the sixth line 331 of the fourth drive unit 330 may be formed to extend in the first direction (X-axis direction), and as the length of the sixth line 331 changes, the image sensor 100 may move in a second direction (Y-axis direction) perpendicular to the first direction (X-axis direction).

[0238] Multiple drive units 220, 230, 320, and 330 can be electrically connected to circuit board 400 for connection to an external power supply (not shown). For example, as Figure 15 As shown, one end and the other end of the third line 221 included in the first drive unit 220 can be connected to lines 228 and 229 to electrically connect to the circuit board 400, thereby connecting to an external power supply (not shown).

[0239] When the first fixing member 224 and the first connecting member 225 are made of conductive material, wires 228 and 229 can be connected to the first fixing member 224 and the first connecting member 225 respectively to electrically connect to the third wire 221. Therefore, a closed circuit can be formed from an external power source (not shown) through the third wire 221 to allow voltage or current to flow to the third wire 221. However, the connection structure between the third wire 221 and the external power source (not shown) is not limited to the above description. For example, at least one of wires 228 and 229, which are respectively connected to one end and the other end of the third wire 221, can be omitted.

[0240] like Figure 15 As shown, one end of the sixth wire 331 can be connected to the fourth fixing member 334, and the fourth fixing member 334 can be directly electrically connected to the circuit board 400. Therefore, one end of the sixth wire 331 can be electrically connected to the circuit board 400 without a wire. The other end of the sixth wire 331 can be connected to the circuit board 400 via a wire 338.

[0241] The frame 110 can be mounted on the movable plate 210 to move in a direction perpendicular to the optical axis (Z-axis) (e.g., the X-axis direction). The movable plate 210 may be provided with a first guide unit 240 to guide the movement of the frame 110.

[0242] Reference Figure 16 The first guide unit 240 may include a first extension portion 241 extending from the moving plate 210 in the optical axis (Z-axis) direction and a first curved portion 242 bending from the first extension portion 241 in a direction intersecting the optical axis (Z-axis) (e.g., the Y-axis direction).

[0243] The first extension portion 241 can be formed to be substantially vertical, and the first curved portion 242 and the movable plate 210 can be formed to be substantially horizontal. For example, the first guide unit 240 can have an inverted L-shaped cross section and can be formed to extend along the movable plate 210 in a first direction (X-axis direction) perpendicular to the optical axis (Z-axis).

[0244] At least a portion of the frame 110 can be inserted between the first curved portion 242 and the movable plate 210 to slide slidably in a first direction (X-axis direction) in which the first guide unit 240 extends.

[0245] Alternatively, the first guide unit 240 may be provided with a first guide groove surrounded by a movable plate 210, a first extension 241 and a first bent portion 242, and at least a portion of the frame 110 may be inserted into the first guide groove to slide slidably in a first direction (X-axis direction).

[0246] The first guide unit 240 may be disposed on the opposite edge of the movable plate 210. In this case, the first curved portion 242 included in the first guide unit 240 may be configured to bend from the first extension portion 241 included in the first guide unit 240 in a direction facing each other.

[0247] To reduce friction between the frame 110 and the movable plate 210, one or more friction-reducing components can be provided at the location where the frame 110 and the movable plate 210 contact each other. In the example, the friction-reducing component 112 can be provided on the portion of the frame 110 between the insertion first bent portion 242 and the movable plate 210.

[0248] For example, such as Figure 16 As shown, the frame 110 may include a first insertion portion 111 inserted into a first guide unit 240 of the movable plate 210, and a friction-reducing member 112 may be disposed on the first insertion portion 111. The friction-reducing member 112 may be a protruding member that reduces the contact area between the frame 110 and the movable plate 210.

[0249] When the friction-reducing member 112 has a protruding shape, it can be configured to protrude from the upper and lower surfaces of the first insertion portion 111. Alternatively, the friction-reducing member (not shown) can be configured to protrude from the end of the first insertion portion 111 in a direction perpendicular to the optical axis (Z-axis). In the example, the friction-reducing member 112 can be integrated with the frame 110. However, the friction-reducing member 112 is not limited thereto and can include, for example, a bushing, a linear bearing, or a ball bearing. Alternatively, the friction-reducing member (not shown) can be disposed on the first guide unit 240 of the moving plate 210.

[0250] The frame 110 can contact the movable plate 210 via the friction-reducing member 112. For example, other parts of the frame 110, except for the friction-reducing member 112, can be arranged to be spaced apart from the movable plate 210 at predetermined intervals. Therefore, the frictional force generated between the frame 110 and the movable plate 210 can be significantly lower.

[0251] In the example, a lubricating material can be applied between the friction-reducing component 112 and the first guide unit 240 or the moving plate 210 to reduce friction between them.

[0252] The movable plate 210 can be mounted on the base 310 to move in a direction perpendicular to the optical axis (Z-axis) (e.g., the Y-axis direction). In this example, the base 310 may be provided with a second guide unit 340 to guide the movement of the movable plate 210.

[0253] Reference Figure 17 The second guide unit 340 may include a second extension portion 341 extending from the base 310 in the optical axis (Z-axis) direction and a second curved portion 342 bending from the second extension portion 341 in a direction intersecting the optical axis (Z-axis) (e.g., the X-axis direction). The second extension portion 341 may be formed substantially vertically, and the second curved portion 342 and the base 310 may be formed substantially horizontally. For example, the second guide unit 340 may have an inverted L-shaped cross-section and may extend along the base 310 in a second direction perpendicular to the optical axis (Z-axis) (e.g., the Y-axis direction).

[0254] At least a portion of the movable plate 210 can be inserted between the second curved portion 342 and the base 310 to slide slidably in a second direction (Y-axis direction) in which the second guide unit 340 extends.

[0255] Alternatively, in the example, the second guide unit 340 may be provided with a second guide groove surrounded by the base 310, the second extension 341, and the second curved portion 342, and at least a portion of the moving plate 210 may be inserted into the second guide groove to slide slidably in the second direction (Y-axis direction).

[0256] The second guide unit 340 may be disposed on the opposite edge of the base 310. In this case, the second curved portion 342 included in the second guide unit 340 may be configured to bend from the second extension portion 341 included in the second guide unit 340 in a direction facing each other.

[0257] To reduce friction between the movable plate 210 and the base 310, one or more friction-reducing components can be provided at the location where the movable plate 210 and the base 310 contact each other. In the example, the friction-reducing component 212 can be provided on the portion of the movable plate 210 between the insertion second curved portion 342 and the base 310.

[0258] For example, such as Figure 17 As shown, the movable plate 210 may include a second insertion portion 211 in the second guide unit 340 of the insertion base 310, and a friction-reducing member 212 may be disposed on the second insertion portion 211. The friction-reducing member 212 may be a protruding member that reduces the contact area between the movable plate 210 and the base 310.

[0259] When the friction-reducing member 212 has a protruding shape, it can be configured to protrude from the upper and lower surfaces of the second insertion portion 211. Alternatively, the friction-reducing member (not shown) can be configured to protrude from the end of the second insertion portion 211 in a direction perpendicular to the optical axis (Z-axis). In the example, the friction-reducing member 212 can be integrated with the moving plate 210. However, the friction-reducing member 212 is not limited thereto and can include, for example, a bushing, a linear bearing, or a ball bearing. Alternatively, the friction-reducing member (not shown) can be disposed on the second guide unit 340 of the base 310.

[0260] The movable plate 210 can contact the base 310 via the friction-reducing member 212. For example, other portions of the movable plate 210, except for the friction-reducing member 212, can be configured to be spaced apart from the base 310 at predetermined intervals. Therefore, the frictional force generated between the movable plate 210 and the base 310 can be significantly lower.

[0261] In the example, a lubricating material may be applied between the friction-reducing member 212 and the second guide unit 340 or the base 310 to reduce friction between them.

[0262] In the following text, reference will be made to Figure 18A and Figure 18B The description is based on the driving of the example driving units 220, 230, 320 and 330.

[0263] Figure 18A and Figure 18B This is a reference view showing the drive of a drive unit included in an image sensor module, according to an example.

[0264] exist Figure 18A and Figure 18B In this document, one drive unit (e.g., third drive unit 320) will be described, but its description can also be applied to other drive units (e.g., first drive unit 220, second drive unit 230, and fourth drive unit 330). For example, in the following description, drive unit 320 may correspond to one of the first drive unit 220, second drive unit 230, third drive unit 320, and fourth drive unit 330.

[0265] The drive unit 320 according to the example may include: a line 321 having a length that changes when power is applied to the line 321; a lever 322 connected to the line 321 and rotating according to the change in the length of the line 321; and a lever shaft 323 forming the rotation axis of the lever 322.

[0266] The wire 321 can be electrically connected to an external power source (not shown) via the wire 328 to receive voltage or current. One end of the wire 321 can be fixed to the base 310 via the fixing member 324, and the other end of the wire 321 can be connected to the lever 322 via the connecting member 325 for movable arrangement. Therefore, when the length of the wire 321 is reduced, the lever 322 connected to the wire 321 via the connecting member 325 can be used to rotate the lever 322.

[0267] The lever 322 may include a connecting portion 322a connected to the line 321 and a contact portion 322b that contacts the movable plate 210. The connecting portion 322a of the lever 322 may move together with the line 321 according to the change in the length of the line 321, and the contact portion 322b may move the movable plate 210 and the image sensor 100 in a predetermined direction (e.g., the Y-axis direction) according to the rotation of the lever 322.

[0268] In the example, the rotation axis of lever 322 can be located between connecting portion 322a and contact portion 322b. In this case, the distance from connecting portion 322a to the rotation axis and the distance from contact portion 322b to the rotation axis can be different from each other.

[0269] For example, when the distance from the rotation axis formed by the lever shaft 323 to the connecting portion 322a is referred to as the first distance C1 and the distance from the rotation axis to the contact portion 322b is referred to as the second distance C2, the first distance C1 can be smaller than the second distance C2, such as... Figure 18A As shown.

[0270] Since the first distance C1 is less than the second distance C2, the trajectory of the arc drawn by the connecting part 322a according to the rotation of the lever 322 can be shorter than the trajectory of the arc drawn by the contact part 322b.

[0271] Furthermore, since the second distance C2 is greater than the first distance C1, the distance that the contact portion 322b moves by rotating according to the change in the length of the line 321 can be greater than the amount of change in the length of the line 321. Therefore, compared to the amount of change in the length of the line 321, the distance that the image sensor 100 moves by the contact portion 322b of the lever 322 can be relatively large.

[0272] For example, when a predetermined voltage is applied, the amount of change in the length of line 321 is called the third distance d1, and the distance that the image sensor 100 moves according to the change in the length of line 321 is called the fourth distance d2, which can be greater than the third distance d1.

[0273] For example, in the image sensor module 10 according to the example, the moving distance of the image sensor 100 can have a value greater than the change in length of the line 321 by means of a structure of lever 322 in which the first distance C1 and the second distance C2 are different from each other.

[0274] Therefore, even when the change in the length of line 321 is small, sufficient motion travel of the image sensor 100 can be ensured. Thus, according to the example, the image sensor module 10 can use the motion of the image sensor 100 to more effectively perform the optical image stabilization (OIS) function.

[0275] Figures 19A to 19F This is a reference view showing the drive of the image sensor in the image sensor module according to the example.

[0276] The first drive unit 220 and the second drive unit 230 can move the frame 110 connected to the image sensor 100. For example, the first drive unit 220 and / or the second drive unit 230 can move the frame 110 in a first direction (X-axis direction).

[0277] The first drive unit 220 and the second drive unit 230 can be mounted on the movable plate 210 and can be controlled independently. For example, one of the first drive unit 220 and the second drive unit 230 can be driven, while the other can be de-driven.

[0278] For example, such as Figure 19A As shown, when the second drive unit 230 is driven, the image sensor 100 can move in the negative direction of the first direction (X-axis direction).

[0279] For example, such as Figure 19B As shown, when the first drive unit 220 is driven, the image sensor 100 can move in the positive direction of the first direction (X-axis direction).

[0280] The first driving unit 220 and the second driving unit 230 can be driven simultaneously or sequentially. For example, the first driving unit 220 and the second driving unit 230 can receive currents or voltages of different magnitudes simultaneously or sequentially to precisely move the image sensor 100 to a desired position in a first direction (X-axis direction).

[0281] The third drive unit 320 and the fourth drive unit 330 can be configured to move the movable plate 210, and when the movable plate 210 is moved by the third drive unit 320 and the fourth drive unit 330 in the second direction (Y-axis direction), the image sensor 100 can also move together with the movable plate 210.

[0282] For example, the third drive unit 320 and the fourth drive unit 330 can move the movable plate 210 in the second direction (Y-axis direction). When the movable plate 210 moves, the first drive unit 220, the second drive unit 230 and the frame 110 disposed on the movable plate 210 can also move.

[0283] The third drive unit 320 and the fourth drive unit 330 can be mounted on the base 310 and can be controlled independently. For example, one of the third drive unit 320 and the fourth drive unit 330 can be driven, while the other can remain undriven.

[0284] For example, such as Figure 19C As shown, when the third drive unit 320 is driven, the moving plate 210 and the image sensor 100 can move in the positive direction of the second direction (Y-axis direction).

[0285] For example, such as Figure 19D As shown, when the fourth drive unit 330 is driven, the moving plate 210 and the image sensor 100 can move in the negative direction of the second direction (Y-axis direction).

[0286] The third drive unit 320 and the fourth drive unit 330 can be driven simultaneously or sequentially. For example, the third drive unit 320 and the fourth drive unit 330 can receive currents or voltages of different magnitudes simultaneously or sequentially to precisely move the image sensor 100 to the desired position in the second direction (Y-axis direction).

[0287] At least some of the first driving units 220 to the fourth driving units 330 can be driven simultaneously or sequentially. Therefore, the image sensor 100 can move in various directions on a plane perpendicular to the optical axis (Z-axis) (XY plane).

[0288] For example, such as Figure 19E As shown, the first drive unit 220 and the third drive unit 320 can be driven simultaneously. For example, when the third drive unit 320 moves the moving plate 210 in the positive direction of the second direction (Y-axis direction), the first drive unit 220 can simultaneously move the frame 110 in the positive direction of the first direction (X-axis direction).

[0289] Therefore, the image sensor 100 can move rapidly in the diagonal direction between the positive direction of the first direction (X-axis direction) and the positive direction of the second direction (Y-axis direction) to perform optical image stabilization (OIS) function.

[0290] Alternatively, such as Figure 19FAs shown, the second drive unit 230 and the fourth drive unit 330 can be driven simultaneously to rapidly move the image sensor 100 in the diagonal direction between the negative direction of the first direction (X-axis direction) and the negative direction of the second direction (Y-axis direction) to perform the OIS function.

[0291] In the image sensor module 10, multiple driving units 220, 230, 320 and 330 that move the image sensor 100 in different directions can be arranged on different layers.

[0292] For example, the third drive unit 320 and the fourth drive unit 330 can be disposed on the base 310, and the first drive unit 220 and the second drive unit 230 can be disposed on the movable plate 210 disposed above the base 310.

[0293] Therefore, even when the moving plate 210 is moved by the third driving unit 320 or the fourth driving unit 330, the first driving unit 220 and the second driving unit 230 can remain in the same position relative to the image sensor 100.

[0294] For example, the relative positions between the first drive unit 220 and the second drive unit 230 and the image sensor 100 can remain unchanged. Therefore, regardless of whether the third drive unit 320 or the fourth drive unit 330 is driven, the first drive unit 220 and the second drive unit 230 can precisely move the image sensor 100 to accurately perform the OIS function.

[0295] Figure 20 This is a view showing the state of the image sensor module connected to the camera module, based on the example.

[0296] like Figure 20 As shown, the image sensor module 10 can be connected to the lower part of the camera module housing 1000.

[0297] The lens module 2000, which is located in the camera module, can move in the direction of the optical axis (Z-axis) to focus the lens in the lens module 2000 on the object, and the image sensor 100, which is located independently of the lens module 2000 in the image sensor module 10, can move in a direction perpendicular to the optical axis (Z-axis) (X-axis direction and / or Y-axis direction) to compensate for camera module shake.

[0298] As described above, the camera module based on the example can have a simple structure and reduced size, while achieving both autofocus and optical image stabilization.

[0299] While this disclosure includes specific examples, it will be apparent upon understanding the disclosure of this application that various changes in form and detail may be made 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. Descriptions of features or aspects in each example should be considered applicable to similar features or aspects in other examples. Suitable results may still be achieved if the described techniques are performed in a different order, and / or if components in the described system, architecture, device, or circuit are combined in different ways and / or replaced or supplemented by other components or their equivalents. Therefore, the scope of this disclosure is not limited by the specific embodiments but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents should be understood to be included in this disclosure.

Claims

1. A camera module comprising: a housing having an inner space; a lens module disposed in the inner space of the housing to be slidably moved with respect to the housing and including a lens barrel in which at least one lens is disposed; and a driving part configured to provide a driving force to move the lens module in an optical axis direction, wherein the driving part includes a wire part having a length that changes as power is applied to the wire part, the lens module includes a guide part configured to guide movement of the lens module in the optical axis direction, and the wire part is in contact with and supported by the guide part, wherein the wire part includes a first wire and a second wire, and the first wire and the second wire are bent in opposite directions with respect to the guide part, and wherein the camera module further includes a fixing protrusion disposed in the housing to support the first wire and the second wire, and the first wire and the second wire are disposed to be spaced apart from each other in a direction perpendicular to the optical axis direction.

2. The camera module of claim 1, wherein, The guide part is in contact with an inner side surface of the housing.

3. The camera module of claim 1, wherein, The guide part includes a guide protrusion protruding from a side surface of the lens module toward an inner side surface of the housing in a direction perpendicular to the optical axis direction.

4. The camera module of claim 3, wherein, The inner side surface of the housing includes a guide groove accommodating at least a portion of the guide protrusion.

5. The camera module of claim 4, wherein, The guide groove extends in the optical axis direction.

6. The camera module of claim 1, wherein, The guide part includes a first guide part protruding in a first direction perpendicular to the optical axis direction and a second guide part protruding in a second direction perpendicular to both the optical axis direction and the first direction.

7. The camera module of claim 6, wherein, The wire part is in contact with and supported by the first guide part and the second guide part.

8. The camera module of claim 1, wherein, The driving part further includes: two first wire pins disposed in the housing; and two second wire pins disposed in the housing, wherein opposite ends of the first wire are fixed to the first wire pins, and opposite ends of the second wire are fixed to the second wire pins.

9. The camera module of claim 1, wherein, The fixing protrusion includes: a first groove in which the first wire is disposed; and a second groove in which the second wire is disposed, and the first groove and the second groove are spaced apart from each other in a direction perpendicular to the optical axis direction. 10.The camera module of claim 1, further comprising an image sensor module coupled to the housing, wherein, the image sensor module including: an image sensor; a first sensor driving part configured to move the image sensor in a first direction perpendicular to the optical axis direction; and a second sensor driving part configured to move the image sensor in a second direction perpendicular to both the optical axis direction and the first direction, and the image sensor and the first sensor driving part are moved together by the second sensor driving part.

11. The camera module of claim 10, wherein, The first sensor driving part includes: a moving plate on which the image sensor is disposed; a first lever rotatably disposed on the moving plate and configured to move the image sensor; and a third wire connected to the first lever and having a length that changes in response to application of power to the third wire connected to the first lever.

12. The camera module of claim 11, wherein, The second sensor driving part includes: a base on which the first sensor driving part is disposed; a second lever rotatably disposed on the base and configured to move the first sensor driving part; and a fourth wire connected to the second lever and having a length that changes in response to application of power to the fourth wire connected to the second lever.

13. The camera module of claim 10, wherein, The image sensor module further includes a circuit board electrically connected to the image sensor, and at least a portion of the circuit board is configured to be flexible.

14. An image sensor module, comprising: an image sensor; a first sensor driving part configured to move the image sensor in a first direction parallel to a surface of the image sensor; and a circuit board electrically connected to the image sensor, wherein the first sensor driving part includes a first wire having a length that changes in a second direction in response to application of power to the first wire, the second direction being perpendicular to the first direction and parallel to the surface of the image sensor, and the first sensor driving part is further configured to move the image sensor in the first direction in response to the length of the first wire changing in the second direction in response to application of power to the first wire, wherein the first sensor driving part further includes a first lever having a first end connected to one end of the first wire and configured to rotate and move the image sensor in the first direction in response to the length of the first wire changing in the second direction in response to application of power to the first wire, and wherein the image sensor module further includes: a frame in which the image sensor is disposed; a plate; and two first guide units disposed on opposite edges of the plate in the second direction, wherein the two first guide units are configured to support the frame so that the frame is movable in the first direction, and the first lever is rotatably mounted on the plate so that a second end of the first lever contacts the frame and pushes the frame and the image sensor in the first direction in response to the length of the first wire changing in the second direction in response to application of power to the first wire.

15. The image sensor module of claim 14, further comprising a second sensor driving part configured to move the image sensor in the second direction, wherein the second sensor driving part includes a second wire having a length that changes in the first direction in response to application of power to the second wire, and the second sensor driving part is further configured to move the image sensor in the second direction in response to the length of the second wire changing in the first direction in response to application of power to the second wire. The second sensor driving portion is further configured to move the image sensor in the second direction in response to the length of the second wire changing in the first direction in response to applying power to the second wire.

16. The image sensor module of claim 15, wherein, The first sensor driving portion further includes a first lever having a first end connected to one end of the first wire and configured to rotate and move the image sensor in the first direction in response to the length of the first wire changing in the second direction in response to applying power to the first wire, and The second sensor driving portion further includes a second lever having a first end connected to one end of the second wire and configured to rotate and move the image sensor in the second direction in response to the length of the second wire changing in the first direction in response to applying power to the second wire.

17. The image sensor module of claim 16, further comprising: a frame in which the image sensor is disposed; a moving plate; two first guide units disposed on opposite edges of the moving plate in the second direction; a base; and two second guide units disposed on opposite edges of the base in the first direction, wherein the two first guide units are configured to support the frame so that the frame is movable in the first direction, the first lever is rotatably mounted on the moving plate so that a second end of the first lever contacts the frame and pushes the frame and the image sensor in the first direction in response to the length of the first wire changing in the second direction in response to applying power to the first wire, the two second guide units are configured to support the moving plate so that the moving plate is movable in the second direction, and the second lever is rotatably mounted on the base so that a second end of the second lever contacts one of the two first guide units and pushes the moving plate, the frame, and the image sensor in the second direction in response to the length of the second wire changing in the first direction in response to applying power to the second wire.

Images