Camera module

Abstract

The camera module comprises a bearing part arranged in the shell; the optical module is arranged in the bearing part; a first driving unit including a first coil and a first magnet coupled to the bearing portion; a second driving unit including a plurality of coils and one or more magnets coupled to the optical module; the first ball group and the second ball group are arranged between the bearing part and the shell; and a substrate on which a first coil and a plurality of coils are disposed, one of the plurality of coils facing one polarity of the one or more magnets, another of the plurality of coils facing two polarities of the one or more magnets, a first ball group including two or more balls, a second ball group including fewer balls than the first ball group, and a substrate mounted on both side surfaces of the housing so as to surround the second ball group.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority from Korean Patent Application No. 10-2023-0171582 filed on November 30, 2023, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety for all purposes. Technical Field

[0003] The following description relates to a camera module. Background Art

[0004] Camera modules are implemented in portable electronic devices such as, but not limited to, smartphones, tablet personal computers (PCs), and laptop computers. As the size of mobile communication terminals decreases, image quality may deteriorate because the size of the mobile communication terminal may greatly affect hand shaking or shaking of the device when imaging.

[0005] Image stabilization may be achieved by moving the lens module relative to the image sensor in a direction perpendicular to the optical axis or by moving the image sensor relative to the lens module in a direction perpendicular to the optical axis.

[0006] For image stabilization, since the lens module or the image sensor may need to move along two mutually perpendicular axes, a driving unit may be required to generate a driving force in the direction of each axis. Therefore, a camera module with an image stabilization function may have an increased size.

[0007] The above information is presented as background information only to assist with an understanding of the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with respect to the present disclosure. Summary of the invention

[0008] The purpose of providing this summary is to introduce a selection of inventive concepts in a concise form, and these inventive concepts will be further described in the following detailed description. This summary is not intended to identify the key features or essential features of the subject matter claimed, nor is it intended to help determine the scope of the subject matter claimed.

[0009] In a general aspect, a camera module includes: a housing; a bearing portion disposed in the housing; an optical module disposed in the bearing portion; a first driving unit including a first magnet coupled to the bearing portion and a first coil disposed to face the first magnet; a second driving unit including one or more magnets coupled to a first side surface of the optical module and a plurality of coils disposed to face the one or more magnets; a first ball group and a second ball group disposed between the bearing portion and the housing and spaced apart from each other in a first axis direction perpendicular to an optical axis direction; and a substrate on which a first coil and a plurality of coils are disposed, wherein a first coil of the plurality of coils faces one polarity of the one or more magnets and a second coil of the plurality of coils faces two polarities of the one or more magnets, wherein the first ball group includes two or more balls disposed in the optical axis direction and the second ball group includes fewer balls than the first ball group, and wherein the substrate is mounted on both side surfaces of the housing to surround the second ball group.

[0010] One surface of one or more magnets facing the inner surface of the substrate has an N pole and an S pole, and multiple coils are arranged on the inner surface of the substrate, and wherein the N pole and the S pole are arranged in a second axis direction perpendicular to both the optical axis direction and the first axis direction.

[0011] On one surface of one or more magnets, the size of the area occupied by the N pole may be different from the size of the area occupied by the S pole.

[0012] A first position sensor facing the N pole and a second position sensor at least partially facing the N pole and the S pole may be disposed on the substrate.

[0013] The first position sensor may include one Hall sensor, and the second position sensor may include a plurality of Hall sensors.

[0014] The one or more magnets may include second and third magnets spaced apart from each other in a second axis direction perpendicular to the optical axis direction and the first axis direction, and the plurality of coils may include second and third coils spaced apart from each other in the second axis direction.

[0015] The length of the second magnet in the second axis direction may be greater than the length of the third magnet in the second axis direction.

[0016] The first surface of the second magnet may have one of an N pole and an S pole, and the first surface of the third magnet may have a polarity opposite to that of the first surface of the second magnet.

[0017] The second coil may face the first surface of the second magnet, and a portion of the third coil may face the first surface of the second magnet, and another portion of the third coil may face the first surface of the third magnet.

[0018] The first surface of the second magnet may have a first polarity, and the first surface of the third magnet may have a second polarity and a first polarity in the second axis direction, and the first polarity and the second polarity may be opposite polarities.

[0019] A first position sensor facing the first polarity of the second magnet and a second position sensor at least partially facing the first polarity and the second polarity of the third magnet are disposed on the substrate, and the first position sensor may include one Hall sensor, and the second position sensor may include a plurality of Hall sensors.

[0020] A first position sensor facing the first polarity of the second magnet and a second position sensor at least partially facing the first polarity of the second magnet and the second polarity of the third magnet may be disposed on the substrate, and the first position sensor may include one Hall sensor, and the second position sensor may include multiple Hall sensors.

[0021] One coil among the multiple coils and one or more magnets can be configured to generate a driving force in a direction in which one coil among the multiple coils and one or more magnets face each other, and another coil among the multiple coils and one or more magnets can be configured to generate a driving force in a direction perpendicular to the direction in which another coil among the multiple coils and one or more magnets face each other.

[0022] The camera module may further include: a pulling magnet coupled to the second side surface of the optical module; a first yoke facing the one or more magnets in the optical axis direction; and a second yoke facing the pulling magnet in the optical axis direction.

[0023] In a general aspect, a camera module includes: a housing; a bearing portion disposed in the housing; a substrate mounted on the housing; an optical module disposed in the bearing portion; a first driving unit including a first magnet coupled to the bearing portion and a first coil disposed to face the first magnet; a second driving unit including a second magnet and a third magnet coupled to a first side surface of the optical module and a second coil and a third coil coupled to a first side of the substrate and disposed to face the second magnet and the third magnet, respectively; a first position sensor coupled to the second side of the substrate and disposed to face the first magnet; a second position sensor and a third position sensor coupled to the first side of the substrate and disposed to face the second magnet and the third magnet, wherein the first driving unit is configured to move the optical module in an optical axis direction, and wherein the second driving unit is configured to move the optical module in a first direction perpendicular to the optical axis direction and in a second direction perpendicular to the optical axis direction and the first direction.

[0024] Other features and aspects will be apparent from the following detailed description, the accompanying drawings, and the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of an exemplary camera module is shown in accordance with one or more embodiments.

[0026] Figure 2 An exploded perspective view of an exemplary camera module is shown in accordance with one or more embodiments.

[0027] Figure 3 A schematic cross-sectional view of a carrier portion according to one or more embodiments is shown.

[0028] Figure 4 Perspective and enlarged views of a housing are shown according to one or more embodiments.

[0029] Figure 5 A perspective view of a substrate according to one or more embodiments is shown.

[0030] Figure 6 A schematic side plan view of a second drive unit is shown in accordance with one or more embodiments.

[0031] Figure 7 , Figure 8 and Fig. 9 A modified example of the second driving unit according to one or more embodiments is shown.

[0032] Throughout the drawings and detailed description, unless otherwise described, the same reference numerals refer to the same elements. For purposes of clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative sizes, proportions, and depictions of elements in the drawings may be exaggerated. DETAILED DESCRIPTION

[0033] Hereinafter, although examples of the present disclosure will be described in detail with reference to the accompanying drawings, it should be noted that the examples are not limited thereto.

[0034] The following specific embodiments are provided to help the reader fully understand the method, device and / or system described in this application. However, after understanding the present disclosure, various changes, modifications and equivalences of the method, device and / or system described in this application will be apparent. For example, the order of operations described in this application is merely an example, and except for the operations that must occur in a certain order, it is not limited to those stated in this application, but can be changed as will be apparent after understanding the present disclosure. In addition, in order to improve clarity and brevity, the description of features known in the art may be omitted.

[0035] The features described in this application may be embodied in different forms and should not be construed as being limited to the examples described in this application. On the contrary, the examples described in this application are provided only to illustrate some of the many possible ways to implement the methods, devices and / or systems described in this application, which will be apparent after understanding this disclosure.

[0036] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being "on", "connected to", or "coupled to" another element, it may be directly "on", "connected to", or "coupled to" another element, or one or more other elements may be present between the element and the other element. Conversely, when an element is described as being "directly on", "directly connected to", or "directly coupled to" another element, no other elements may be present between the element and the other element.

[0037] As used in this application, the term "and / or" includes any one of the relevant listed items and any combination of any two or more items; similarly, "at least one of..." includes any one of the relevant listed items and any combination of any two or more items.

[0038] Although terms such as "first", "second" and "third" may be used in this application to describe various components, parts, regions, layers or sections, these components, parts, regions, layers or sections are not limited by these terms. Instead, these terms are only used to distinguish one component, part, region, layer or section from another component, part, region, layer or section. Therefore, without departing from the teachings of the examples described in this application, the first component, first component, first region, first layer or first section mentioned in these examples may also be referred to as the second component, second component, second region, second layer or second section.

[0039] Spatially relative terms such as "above", "higher", "below", and "lower" may be used in this application for descriptive convenience to describe the relationship of one element relative to another element as shown in the accompanying drawings. In addition to covering the orientations depicted in the accompanying drawings, these spatially relative terms are intended to also cover different orientations of the device in use or operation. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "higher" relative to another element will be "below" or "lower" relative to the other element. Therefore, depending on the spatial orientation of the device, the term "above" covers both "above" and "below" orientations. The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used in this application should be interpreted accordingly.

[0040] The terms used in this application are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the words "a", "an" and "the" are intended to include plural forms as well. The words "include", "comprise" and "have" indicate the presence of the described features, quantities, operations, components, elements and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof.

[0041] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described in the present application are not limited to the specific shapes shown in the drawings, but include variations in shapes that occur during manufacturing.

[0042] It should be noted that in this application, the use of the word “may” with respect to an example, for example, regarding what an example may include or implement, means that there is at least one example in which such feature is included or implemented, and all examples are not limited thereto.

[0043] The features of the examples described in this application can be combined in various ways that will be apparent after understanding the disclosure of this application. In addition, although the examples described in this application have multiple configurations, other configurations that will be apparent after understanding the disclosure of this application are also possible.

[0044] One or more examples relate to a camera module that may be mounted on a portable electronic device such as, but not limited to, a mobile communication terminal, a smart phone, and a tablet PC.

[0045] One or more examples may provide a camera module having an image stabilization operation and may have a reduced size.

[0046] Figure 1 A perspective view of an exemplary camera module is shown in accordance with one or more embodiments. Figure 2 An exploded perspective view of an exemplary camera module is shown in accordance with one or more embodiments.

[0047] Figure 3 A schematic cross-sectional view of a carrier portion according to one or more embodiments is shown.

[0048] Figure 4 Perspective and enlarged views of a housing are shown according to one or more embodiments.

[0049] Figure 5 A perspective view of a substrate according to one or more embodiments is shown. Figure 6 A schematic side plan view of a second drive unit is shown in accordance with one or more embodiments.

[0050] refer to Figure 1 and Figure 2 , an exemplary camera module 1 according to one or more embodiments may include an optical module 200 and a housing 120 .

[0051] In an embodiment, the optical module 200 may refer to a lens module. In another embodiment, the optical module 200 may refer to an image sensor module. Hereinafter, description will be made with reference to an embodiment in which the optical module 200 is implemented as a lens module.

[0052] The optical module 200 may include a plurality of lenses 220 and a lens barrel 210 accommodating the plurality of lenses 220 .

[0053] The lens barrel 210 may have a hollow cylindrical shape so that the plurality of lenses 220 may be accommodated therein, and the plurality of lenses 220 may be accommodated in the lens barrel 210 along an optical axis.

[0054] In one or more examples, the optical axis direction may refer to a direction extending upward and downward along the optical axis (Z axis) of the optical module 200 or a direction parallel to the optical axis (Z axis).

[0055] The first axis (X axis) direction may refer to a direction perpendicular to the optical axis (Z axis) direction, and the second axis (Y axis) direction may refer to a direction perpendicular to both the optical axis (Z axis) direction and the first axis (X axis) direction.

[0056] The optical module 200 may move in the housing 120 in the optical axis (Z-axis) direction.

[0057] The camera module 1 may further include a carrier 300 and an image sensor module 800 .

[0058] The carrier 300 may be disposed in the housing 120 , and may be movable relative to the housing 120 in the optical axis (Z-axis) direction.

[0059] Each of the upper and lower portions of the housing 120 may have an open shape or area, the carrier 300 may be disposed in an inner space of the housing 120 , and the optical module 200 may be accommodated in the carrier 300 .

[0060] The carrier 300 and the optical module 200 can move together in the optical axis (Z axis) direction. Therefore, the distance between the optical module 200 and the image sensor 810 can be changed to adjust the focus.

[0061] In an embodiment where the optical module 200 is implemented as an image sensor module, the image sensor module may be disposed on the carrier 300 and may move together with the carrier 300 in the optical axis (Z-axis) direction.

[0062] The image sensor module 800 may be a device that converts light incident through the plurality of lenses 220 into an electrical signal.

[0063] As an example, the image sensor module 800 may include an image sensor 810 and a printed circuit board 820 connected to the image sensor 810 , and may further include an infrared filter.

[0064] The infrared filter may block light in an infrared region among light incident through the plurality of lenses 220 .

[0065] The image sensor 810 may convert light incident through the plurality of lenses 220 into an electrical signal. As a non-limiting example, the image sensor 810 may be implemented as a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS).

[0066] The electrical signal converted by the image sensor 810 may be output as an image through a display device of the portable electronic device.

[0067] The image sensor 810 may be fixed to the printed circuit board 820 and may be electrically connected to the printed circuit board 820 through wire bonding.

[0068] In an example, the image sensor module 800 may be disposed in a lower portion of the housing 120 .

[0069] The housing 110 and / or the upper cover 130 may be coupled to the case 120 to surround an outer surface of the case 120 , and may operate to protect internal components of the camera module 1 .

[0070] In an embodiment, the camera module 1 may include a first driving unit 500. The first driving unit 500 may be configured to generate a driving force to move the optical module 200 in an optical axis (Z-axis) direction.

[0071] In an example, the first driving unit 500 may move the carrier 300 by generating a driving force in the optical axis (Z axis) direction. Since the optical module 200 may be disposed in the carrier 300, the carrier 300 and the optical module 200 may move together in the optical axis (Z axis) direction based on the driving force of the first driving unit 500.

[0072] The first driving unit 500 may include a first magnet 510 and a first coil 530. The first magnet 510 and the first coil 530 may be disposed to face each other in a direction perpendicular to the optical axis (Z axis), for example, in a second axis (Y axis) direction.

[0073] The first magnet 510 may be mounted on the carrier 300. As an example, the first magnet 510 may be mounted on one side surface of the carrier 300.

[0074] The first magnet 510 may be magnetized so that one surface (e.g., the surface facing the first coil 530) may have both an N pole and an S pole. For example, an N pole, a neutral region, and an S pole may be sequentially provided on one surface of the first magnet 510 facing the first coil 530 in the optical axis (Z axis) direction.

[0075] The first coil 530 may be disposed to face the first magnet 510. In an example, the first coil 530 may be disposed to face the first magnet 510 in the second axis (Y axis) direction.

[0076] The first coil 530 may be disposed on the substrate 900 , and the substrate 900 may be mounted on the housing 120 so that the first magnet 510 and the first coil 530 may face each other in the second axis (Y axis) direction. In an example, the first coil 530 may be disposed on one inner side surface of the substrate 900 .

[0077] The housing 120 may include an opening penetrating through a side surface of the housing 120 , and the first coil 530 disposed on the substrate 900 may directly face the first magnet 510 through the opening.

[0078] The first magnet 510 may be a moving member mounted on the carrier 300 and moving in the optical axis (Z-axis) direction together with the carrier 300 , and the first coil 530 may be a fixed member fixed to the substrate 900 .

[0079] When power is supplied to the first coil 530 , the carrier 300 may move in the optical axis (Z-axis) direction based on the electromagnetic force between the first magnet 510 and the first coil 530 .

[0080] Since the optical module 200 is accommodated in the carrier 300 , the optical module 200 can also move in the optical axis (Z-axis) direction by the movement of the carrier 300 .

[0081] The first ball member B1 (BG1 and BG2) may be disposed between the bearing portion 300 and the housing 120. In an example, the first ball member B1 may be disposed between the bearing portion 300 and the housing 120, and may reduce friction when the bearing portion 300 moves.

[0082] The first ball member B1 may include a plurality of balls that may move in the optical axis (Z axis) direction when the bearing portion 300 moves in the optical axis (Z axis) direction.

[0083] The first yoke 570 may be disposed in the housing 120. The first yoke 570 may be disposed in a position facing the first magnet 510. For example, the first coil 530 may be disposed on one inner side surface of the substrate 900, and the first yoke 570 may be disposed on one outer side surface of the substrate 900 (e.g., the opposite side of one inner side surface).

[0084] The first magnet 510 and the first yoke 570 may generate an attractive force between them. In an example, the first yoke 570 may be a magnetic material. The attractive force may act between the first magnet 510 and the first yoke 570 in a direction perpendicular to the optical axis (Z axis) (e.g., in the direction of the second axis (Y axis)).

[0085] Based on the attractive force between the first magnet 510 and the first yoke 570 , the first ball members B1 ( BG1 and BG2 ) may come into contact with each of the bearing portion 300 and the housing 120 .

[0086] The first ball member B1 may include a first ball group BG1 and a second ball group BG2. The first ball group BG1 and the second ball group BG2 may be spaced apart from each other in a direction perpendicular to the optical axis (Z axis) (e.g., a first axis (X axis) direction). In a non-limiting example, the first ball group BG1 may include two or more balls arranged in the optical axis (Z axis) direction. In an example, the number of balls included in the second ball group BG2 may be less than the number of balls included in the first ball group BG1.

[0087] In an example, the first ball group BG1 may include two or more balls arranged in the optical axis (Z-axis) direction, and the second ball group BG2 may have fewer balls than the number of balls included in the first ball group BG1. The number of balls included in each ball group may vary on the premise that the number of balls included in the first ball group BG1 and the number of balls included in the second ball group BG2 are different.

[0088] In the following description, for ease of description, the first ball group BG1 may include three balls, and the second ball group BG2 may include two balls.

[0089] Among the three balls included in the first ball group BG1, two balls disposed on the outermost sides in the optical axis (Z axis) direction may have the same diameter, and a ball disposed between the two balls may have a diameter smaller than that of the ball disposed on the outermost sides.

[0090] In a non-limiting example, two balls included in the second ball group BG2 may have the same diameter. Examples of components having the same diameter may include a configuration in which the components physically have the same diameter, and may also include manufacturing errors.

[0091] The distance between the centers of the balls disposed on the outermost side in the optical axis (Z axis) direction among the multiple balls included in the first ball group BG1 and the distance between the centers of the balls disposed on the outermost side in the direction parallel to the optical axis (Z axis) among the multiple balls included in the second ball group BG2 may be different.

[0092] refer to Figure 3 and Figure 4 , the first guide groove 310 and the second guide groove 320 may be provided on the bearing portion 300 and the housing 120 , respectively.

[0093] In an example, the first guide groove 310 may be provided on the surface on which the bearing portion 300 and the housing 120 face each other, and the second guide groove 320 may be provided on the surface on which the bearing portion 300 and the housing 120 face each other. The first guide groove 310 and the second guide groove 320 may be spaced apart from each other in the first axis (X axis) direction. The first guide groove 310 and the second guide groove 320 may extend in the optical axis (Z axis) direction.

[0094] The first guide groove 310 of the bearing part 300 and the first guide groove 310 of the housing 120 may face each other in the second axis (Y axis) direction. In addition, the second guide groove 320 of the bearing part 300 and the second guide groove 320 of the housing 120 may face each other in the second axis (Y axis) direction.

[0095] In an example, the first ball group BG1 may be disposed between the first guide groove 310 of the carrier 300 and the first guide groove 310 of the housing 120. In addition, the second ball group BG2 may be disposed between the second guide groove 320 of the carrier 300 and the second guide groove 320 of the housing 120.

[0096] Among the plurality of balls included in the first ball group BG1, the ball disposed on the outermost side in the optical axis (Z-axis) direction may make two-point contact with the first guide groove 310 of the bearing portion 300 and may make two-point contact with the first guide groove 310 of the housing 120.

[0097] The first ball group BG1 , the first guide groove 310 of the carrier 300 , and the first guide groove 310 of the housing 120 may function as a main guide to guide movement of the carrier 300 in the optical axis (Z-axis) direction.

[0098] When the second ball group BG2 includes multiple balls, the ball arranged on the outermost side in the optical axis (Z-axis) direction among the multiple balls included in the second ball group BG2 can make single-point contact with the second guide groove 320 of the bearing part 300, and can make two-point contact with the second guide groove 320 of the shell 120 (and conversely, can make two-point contact with the second guide groove 320 of the bearing part 300, and can make single-point contact with the second guide groove 320 of the shell 120).

[0099] When the second ball group BG2 includes one ball, the one ball may make two-point contact with one of the second guide groove 320 of the bearing part 300 and the second guide groove 320 of the housing 120 , and may make single-point contact with the other.

[0100] The second ball group BG2 , the second guide groove 320 of the carrier 300 , and the second guide groove 320 of the housing 120 may function as auxiliary guides that support movement of the carrier 300 in the optical axis (Z-axis) direction.

[0101] In order to enable the bearing part 300 to move parallel to the optical axis (Z axis) direction when the bearing part 300 moves in the optical axis (Z axis) direction (i.e., to prevent tilting), the center point CP of the attraction between the first magnet 510 and the first magnetic yoke 570 should be set in the supporting area A that connects the contact points of the first ball member B1 and the bearing part 300 (or the housing 120) to each other.

[0102] When the center point CP of the attractive force deviates from the support area A, the position of the carrying portion 300 may shift during the movement of the carrying portion 300, and thus tilting may occur. Therefore, the support area A may need to be configured to be relatively wide.

[0103] In an embodiment, the size (e.g., diameter) of a portion of the plurality of balls of the first ball member B1 may be intentionally configured to be smaller than the size (e.g., diameter) of the other balls. In this example, a larger ball (or larger balls) among the plurality of balls may be intentionally brought into contact with the bearing portion 300 (or the housing 120).

[0104] Since the diameter of two balls among the three balls in the first ball group BG1 is larger than the diameter of the other ball, the two balls in the first ball group BG1 can respectively contact the bearing part 300 and the housing 120. In addition, since the two balls of the second ball group BG2 have the same diameter, the two balls of the second ball group BG2 can respectively contact the bearing part 300 and the housing 120.

[0105] Therefore, if Figure 3 As shown in , when viewed in the second axis (Y axis) direction, the first ball member B1 may make four-point contact with the bearing portion 300 (or the housing 120). In addition, the support area A connecting the contact points may have a quadrilateral shape (eg, a trapezoid).

[0106] Therefore, the support region A can be formed relatively wide, and thus, the center point CP of the attractive force acting between the first magnet 510 and the first yoke 570 can be stably disposed in the support region A. Therefore, driving stability during focus adjustment can be ensured.

[0107] Even when the two balls of the second ball group BG2 are manufactured to have the same diameter, due to manufacturing errors, the two balls of the second ball group BG2 may not physically have exactly the same diameter. In this example, one of the two balls of the second ball group BG2 may contact the bearing portion 300 (or the housing 120).

[0108] Therefore, the support area A connecting the contact points where the first ball member B1 contacts the bearing portion 300 (or the housing 120) may have a triangular shape.

[0109] Even when the support area A is a triangle, the support area A can be widely formed by balls disposed on the outermost sides in the optical axis (Z axis) direction among the three balls of the first ball group BG1, thereby ensuring driving stability during focus adjustment.

[0110] In addition to ensuring driving stability during focus adjustment, reducing the height (i.e., thinning) of the camera module 1 in the optical axis (Z axis) direction may also be an important issue. By simply reducing the height of the camera module 1 in the optical axis (Z axis) direction, it is also possible to reduce the height of the support area A in the optical axis (Z axis) direction.

[0111] In other words, by simply reducing the height of the camera module 1 in the optical axis (Z-axis) direction, driving stability may deteriorate during focus adjustment.

[0112] In an embodiment, the auxiliary yoke 590 may be disposed in a position facing the first magnet 510. In an example, the auxiliary yoke 590 may be disposed on the substrate 900 to face the first magnet 510.

[0113] The auxiliary yoke 590 may be disposed closer to the main guide than the auxiliary guide. In an example, the auxiliary yoke 590 may be disposed closer to the first ball group BG1 than the second ball group BG2. The auxiliary yoke 590 may be disposed closer to the first guide groove 310 than the second guide groove 320. The auxiliary yoke 590 may be a material that can generate an attractive force for the first magnet 510.

[0114] Therefore, a resultant force of attraction acting between the first magnet 510 and the first yoke 570 and a resultant force of attraction acting between the first magnet 510 and the auxiliary yoke 590 may be disposed closer to the main guide than to the auxiliary guide.

[0115] In another embodiment, the first magnet 510 on the side surface of the carrier 300 may be disposed eccentrically to one side of the first magnet 510 in the length direction (eg, the first axis (X-axis) direction).

[0116] The center of the side surface of the bearing portion 300 and the center of the first magnet 510 may be offset from each other. The eccentric direction of the first magnet 510 may be toward the main guide.

[0117] In an example, the first magnet 510 may be disposed closer to the main guide than to the auxiliary guide.

[0118] Since the support area A can be closer to the main guide, the length in the optical axis (Z axis) direction can be increased, and the center point CP of the attractive force can be stably set in the support area A by setting the first magnet 510 closer to the main guide.

[0119] In an embodiment, the size of the support area A can be increased by configuring the length of the first guide groove 310 corresponding to the main guide member in the optical axis (Z axis) direction to be longer than the length of the second guide groove 320 corresponding to the auxiliary guide member in the optical axis (Z axis) direction.

[0120] In other words, by differently configuring the length of the space in which each ball group is accommodated in the optical axis (Z axis) direction, the size of the support area A can be prevented from changing, or even when the size of the support area A changes, the center point CP of the attraction may not deviate from the support area A.

[0121] refer to Figure 4 , the first supporting portion 121 and the second supporting portion 122 may be provided in the housing 120. For example, the first supporting portion 121 and the second supporting portion 122 may protrude from the inner bottom surface of the housing 120 in the optical axis (Z-axis) direction.

[0122] The first supporting portion 121 may protrude toward the first ball group BG1 in the optical axis (Z axis) direction, and the second supporting portion 122 may protrude toward the second ball group BG2 in the optical axis (Z axis) direction.

[0123] In a non-limiting example, the length of the second supporting portion 122 in the optical axis (Z-axis) direction may be longer than the length of the first supporting portion 121 in the optical axis (Z-axis) direction.

[0124] In an embodiment, the camera module 1 may sense the position of the carrier 300 in the optical axis (Z-axis) direction.

[0125] Therefore, the first position sensor 550 may be provided. The first position sensor 550 may be provided on the substrate 900 to face the first magnet 510. In an example, the first position sensor 550 may be a Hall sensor.

[0126] The camera module 1 can correct shaking during imaging by moving the optical module 200 in a direction perpendicular to the optical axis (Z axis). To this end, the camera module 1 may include a second driving unit 600 that moves the optical module 200 in a direction perpendicular to the optical axis (Z axis).

[0127] Furthermore, in an embodiment where the optical module 200 is implemented as an image sensor module, the image sensor module may be movable in a direction perpendicular to the optical axis (Z axis).

[0128] The guide frame 400 and the optical module 200 may be sequentially accommodated in the carrier 300. For example, the guide frame 400 may be disposed between the carrier 300 and the optical module 200. When viewed from the optical axis (Z axis) direction, the guide frame 400 may have a quadrilateral shape with both sides thereof removed. For example, when viewed from the optical axis (Z axis) direction, the guide frame 400 may have a "┓" or "┗" shape.

[0129] The guide frame 400 and the optical module 200 may move together in one direction perpendicular to the optical axis (Z axis) based on the driving force of the second driving unit 600, and the optical module 200 may move relative to the guide frame 400 in another direction perpendicular to the optical axis (Z axis).

[0130] For example, the guide frame 400 and the optical module 200 can move together in a first axis (X axis) direction perpendicular to the optical axis (Z axis) direction, and the optical module 200 can move relative to the guide frame 400 in a second axis (Y axis) direction perpendicular to both the optical axis (Z axis) direction and the first axis (X axis) direction.

[0131] The optical module 200 may further include a holder 230 coupled to the lens barrel 210. The lens barrel 210 and the holder 230 may be coupled to each other and may move together.

[0132] The second driving unit 600 may generate a driving force in a direction perpendicular to the optical axis (Z axis). In an embodiment, the second driving unit 600 may generate a driving force in a first axis (X axis) direction and a second axis (Y axis) direction.

[0133] The second drive unit 600 may include one or more magnets and a plurality of coils. The plurality of coils may be arranged to face the one or more magnets. In an embodiment, the one or more magnets may be arranged on the side surface of the optical module 200. One coil among the plurality of coils may face one polarity of the one or more magnets, and another coil among the plurality of coils may face two polarities of the one or more magnets.

[0134] In an embodiment, the one or more magnets may include a second magnet 611 and a third magnet 631. Additionally, the plurality of coils may include a second coil 613 and a third coil 633.

[0135] The second magnet 611 and the second coil 613 may be disposed to face each other in the first axis (X-axis) direction.

[0136] The second magnet 611 may be provided on the optical module 200. For example, the second magnet 611 may be mounted on a side surface of the holder 230.

[0137] The second magnet 611 may be magnetized so that one surface (e.g., the surface facing the second coil 613) has one polarity. For example, one surface of the second magnet 611 may have an N pole or an S pole. The other surface of the second magnet 611 may be magnetized to have a polarity opposite to the polarity of the one surface of the second magnet 611.

[0138] The second magnet 611 may have a shape having a length in the second axis (Y-axis) direction.

[0139] The second coil 613 may be disposed to face the second magnet 611. For example, the second coil 613 may be disposed to face the second magnet 611 in the first axis (X axis) direction. In an example, the second coil 613 may have a ring shape having a hollow portion.

[0140] The second coil 613 may be disposed to have one polarity facing one surface of the second magnet 611 .

[0141] During image stabilization, the second magnet 611 may be a moving member mounted on the optical module 200 , and the second coil 613 may be a fixed member fixed to the housing 120 .

[0142] When power is supplied to the second coil 613 , the optical module 200 and the guide frame 400 may move in the first axis (X axis) direction based on an electromagnetic force between the second magnet 611 and the second coil 613 .

[0143] The second magnet 611 and the second coil 613 may generate a driving force in a direction in which the second magnet 611 and the second coil 613 face each other (eg, a first axis (X-axis) direction).

[0144] The third magnet 631 and the third coil 633 may be disposed to face each other in the first axis (X-axis) direction.

[0145] The third magnet 631 may be disposed on the optical module 200. For example, the third magnet 631 may be mounted on a side surface of the holder 230. That is, in an embodiment, both the second magnet 611 and the third magnet 631 may be disposed on a side surface of the holder 230.

[0146] The second magnet 611 and the third magnet 631 may be spaced apart from each other in the second axis (Y-axis) direction.

[0147] The third magnet 631 may be magnetized so that one surface (e.g., the surface facing the third coil 633) may have one polarity. For example, one surface of the third magnet 631 may have an N pole or an S pole. The other surface of the third magnet 631 may be magnetized to have a polarity opposite to the polarity of one surface of the third magnet 631.

[0148] In addition, the polarity of one surface of the second magnet 611 and the polarity of one surface of the third magnet 631 may be opposite to each other.

[0149] The third coil 633 may be disposed to have one polarity facing one surface of the third magnet 631 .

[0150] In addition, the third coil 633 may be disposed to face the second magnet 611 .

[0151] In other words, the third coil 633 may be disposed to face the second magnet 611 and the third magnet 631 .

[0152] For example, a portion of the third coil 633 may face the second magnet 611 in the first axis (X axis) direction, and another portion of the third coil 633 may face the third magnet 631 in the first axis (X axis) direction.

[0153] The polarity of one surface of the second magnet 611 facing a portion of the third coil 633 may be opposite to the polarity of one surface of the third magnet 631 facing another portion of the third coil 633 .

[0154] In an example, the third coil 633 may have a ring shape having a hollow portion.

[0155] The length of the second magnet 611 in the second axis (Y axis) direction may be longer than the length of the third magnet 631 in the second axis (Y axis) direction.

[0156] The second coil 613 and the third coil 633 may be disposed on the substrate 900. As an example, the second coil 613 and the third coil 633 may be disposed on another inner side surface of the substrate 900.

[0157] The substrate 900 may be mounted on a side surface of the housing 120 , and the second coil 613 may directly face the second magnet 611 through an opening provided in the housing 120 , and the third coil 633 may be connected to the second magnet 611 and the third magnet 631 .

[0158] The first coil 530 of the first driving unit 500 may be disposed on one inner side surface of the substrate 900 .

[0159] One inner side surface of the substrate 900 may be coupled to one side surface of the housing 120 , and the other inner side surface of the substrate 900 may be coupled to the other side surface of the housing 120 .

[0160] In other words, the substrate 900 may be mounted on both side surfaces of the housing 120. The both side surfaces of the housing 120 may be perpendicular to each other.

[0161] In addition, the second ball group BG2 of the first ball member B1 may be disposed in an edge region where both side surfaces (one side surface and the other side surface) of the housing 120 are connected to each other. Therefore, the substrate 900 may be mounted on both side surfaces of the housing 120 to surround the second ball group BG2.

[0162] During image stabilization, the third magnet 631 may be a moving member mounted on the optical module 200 , and the third coil 633 may be a fixed member fixed to the housing 120 .

[0163] When power is supplied to the third coil 633 , the optical module 200 may move in the second axis (Y axis) direction based on an electromagnetic force between the second and third magnets 611 and 631 and the third coil 633 .

[0164] The second magnet 611, the third magnet 631 and the third coil 633 can generate a driving force in a direction (e.g., the second axis (Y axis) direction) perpendicular to the direction in which the second magnet 611 and the third magnet 631 face each other (e.g., the first axis (X axis) direction).

[0165] The second magnet 611 and the third magnet 631 may be spaced apart from each other in the second axis (Y axis) direction, and the second coil 613 and the third coil 633 may also be spaced apart from each other in the second axis (Y axis) direction.

[0166] In an embodiment, both the second magnet 611 and the third magnet 631 may be disposed on the side surface of the optical module 200, and both the second coil 613 and the third coil 633 may be disposed on the side surface of the housing 120. That is, since the second driving unit 600 generating driving forces in two directions perpendicular to each other may be disposed on the side surface of the housing 120 and the side surface of the optical module 200 facing each other, the size of the camera module 1 may be reduced.

[0167] In an embodiment, the camera module 1 may include a plurality of ball members supporting the guide frame 400 and the optical module 200. The plurality of ball members may operate to guide the movement of the guide frame 400 and the optical module 200 during an image stabilization operation, and may also operate to maintain a distance between the carrier 300, the guide frame 400, and the optical module 200.

[0168] The plurality of ball members may include a second ball member B2 and a third ball member B3.

[0169] The second ball member B2 may guide the movement of the guide frame 400 and the optical module 200 in the first axis (X axis) direction, and the third ball member B3 may guide the movement of the optical module 200 in the second axis (Y axis) direction.

[0170] In an example, when a driving force is generated in the first axis (X axis) direction, the second ball member B2 may roll in the first axis (X axis) direction. Therefore, the second ball member B2 may guide the movement of the guide frame 400 and the optical module 200 in the first axis (X axis) direction.

[0171] When a driving force is generated in the second axis (Y axis) direction, the third ball member B3 may roll in the second axis (Y axis) direction. Therefore, the third ball member B3 may guide the movement of the optical module 200 in the second axis (Y axis) direction.

[0172] The second ball member B2 may include a plurality of balls disposed between the bearing portion 300 and the guide frame 400 , and the third ball member B3 may include a plurality of balls disposed between the guide frame 400 and the optical module 200 .

[0173] In a non-limiting example, each of the second ball member B2 and the third ball member B3 may include three balls.

[0174] The third guide groove 410 accommodating the second ball member B2 may be formed on at least one surface of the bearing portion 300 and the guide frame 400 facing each other in the optical axis (Z axis) direction. The third guide groove 410 may include a plurality of grooves corresponding to the plurality of ball members of the second ball member B2.

[0175] The second ball member B2 may be received in the third guide groove 410 , and may be inserted between the bearing portion 300 and the guide frame 400 .

[0176] When the second ball member B2 is accommodated in the third guide groove 410, the movement of the second ball member B2 in the optical axis (Z axis) direction and the second axis (Y axis) direction is restricted, and the second ball member B2 can move only in the first axis (X axis) direction. For example, the second ball member B2 can roll only in the first axis (X axis) direction.

[0177] Therefore, a planar shape of each of the plurality of grooves of the third guide groove 410 may be a quadrilateral shape (eg, a rectangular shape) having a length in the first axis (X axis) direction.

[0178] The fourth guide groove 420 accommodating the third ball member B3 may be formed on at least one surface of the guide frame 400 and the optical module 200 facing each other in the optical axis (Z axis) direction. The fourth guide groove 420 may include a plurality of grooves corresponding to the plurality of ball members of the third ball member B3.

[0179] The third ball member B3 may be received in the fourth guide groove 420 , and may be inserted between the guide frame 400 and the optical module 200 .

[0180] When the third ball member B3 is accommodated in the fourth guide groove 420, the movement of the third ball member B3 in the optical axis (Z axis) direction and the first axis (X axis) direction can be restricted, and the third ball member B3 can move only in the second axis (Y axis) direction. For example, the third ball member B3 can roll only in the second axis (Y axis) direction.

[0181] Therefore, a planar shape of each of the plurality of grooves of the fourth guide groove 420 may be a quadrilateral shape (eg, a rectangular shape) having a length in the second axis (Y-axis) direction.

[0182] When a driving force is generated in the first axis (X axis) direction, the guide frame 400 and the optical module 200 can move together in the first axis (X axis) direction. In the example, the second ball member B2 can roll in the first axis (X axis) direction. In this example, the movement of the third ball member B3 can be restricted.

[0183] In addition, when a driving force is generated in the second axis (Y axis) direction, the optical module 200 can move in the second axis (Y axis) direction relative to the guide frame 400. In the example, the third ball member B3 can roll in the second axis (Y axis) direction. In this example, the movement of the second ball member B2 can be restricted.

[0184] In an embodiment, the second yoke 730 may be provided so that the bearing portion 300 and the guide frame 400 may maintain contact with the second ball member B2, and the optical module 200 and the guide frame 400 may maintain contact with the third ball member B3.

[0185] The second yoke 730 may be disposed to be fixed to the carrier 300 and to face one or more of the second magnet 611 and the third magnet 631 in the optical axis (Z-axis) direction.

[0186] An attractive force may be generated between the second yoke 730 and the second magnet 611 and / or the third magnet 631 in the optical axis (Z-axis) direction.

[0187] Since the optical module 200 and the guide frame 400 are pressed in a direction toward the second yoke 730 by the attraction between the second yoke 730 and the second magnet 611 and / or the third magnet 631 , the guide frame 400 and the optical module 200 may maintain contact with the second ball member B2 and the third ball member B3 .

[0188] In an embodiment, both the second magnet 611 and the third magnet 631 may be disposed on one side surface (also referred to as a "first side surface") of the optical module 200 so that the attraction generated from the region having the second yoke 730 may be offset to one side. In this example, the second ball member B2 and the third ball member B3 may have difficulty in maintaining contact with the object. In addition, the attraction between the second yoke 730, the second magnet 611, and / or the third magnet 631 may be insufficient.

[0189] Therefore, in an embodiment, the camera module 1 may further include a pulling magnet 710. The pulling magnet 710 may be disposed on the optical module 200. In an example, the pulling magnet 710 may be disposed on a second side surface of the optical module 200 that is perpendicular to the first side surface of the optical module 200.

[0190] In addition, the third yoke 750 may be disposed in a position facing the pulling magnet 710 in the optical axis (Z-axis) direction.

[0191] The third yoke 750 may be fixed to the carrier 300. An attractive force may be generated between the third yoke 750 and the pulling magnet 710 in the optical axis (Z-axis) direction.

[0192] The second yoke 730 and the third yoke 750 may be magnetic materials.

[0193] In an embodiment, the camera module 1 may sense the position of the optical module 200 in a direction perpendicular to the optical axis (Z axis).

[0194] Therefore, the second position sensor 615 and the third position sensor 635 may be provided. Each of the second position sensor 615 and the third position sensor 635 may be provided on the substrate 900. The second position sensor 615 and the third position sensor 635 may be spaced apart from each other in the second axis (Y axis) direction.

[0195] The second position sensor 615 may be disposed to face the first polarity (N pole or S pole) of the second magnet 611. The third position sensor 635 may be disposed to face the first polarity (N pole or S pole) of the second magnet 611 and the second polarity (S pole or N pole) of the third magnet 631.

[0196] The first polarity and the second polarity may be opposite polarities.

[0197] One of the second position sensor 615 and the third position sensor 635 may include one Hall sensor, and the other may include a plurality of Hall sensors.

[0198] In an example, the second position sensor 615 may include a Hall sensor facing the first polarity of the second magnet 611. The third position sensor 635 may include a plurality of Hall sensors. In an example, the third position sensor 635 may include two Hall sensors. In an example, one of the two Hall sensors may be disposed close to the first polarity of the second magnet 611, and the other of the two Hall sensors may be disposed close to the second polarity of the third magnet 631.

[0199] When the optical module 200 moves in the first axis (X axis), the distance between the second magnet 611 and the second position sensor 615 in the first axis (X axis) direction may decrease or increase. Therefore, the second position sensor 615 may sense the position of the optical module 200 in the first axis (X axis) direction.

[0200] When the optical module 200 moves in the second axis (Y axis) direction, the third position sensor 635 may move closer to the first polarity of the second magnet 611 and may move away from the second polarity of the third magnet 631. Alternatively, the third position sensor 635 may move away from the first polarity of the second magnet 611 and may move closer to the second polarity of the third magnet 631. Therefore, the third position sensor 635 may sense the position of the optical module 200 in the second axis (Y axis) direction.

[0201] Figures 7 to 9 is a diagram illustrating a modified example of the second driving unit according to one or more embodiments.

[0202] First, refer to Figure 7, the second driving unit 600 may include a second magnet 611 and a second coil 613 facing each other and a third magnet 631 and a third coil 633 facing each other.

[0203] One surface of the second magnet 611 facing the second coil 613 may have one polarity, and one surface of the third magnet 631 facing the third coil 633 may have two polarities.

[0204] In an example, the second coil 613 may face the N pole of one surface of the second magnet 611 , and the third coil 633 may face the N pole and the S pole of one surface of the third magnet 631 .

[0205] On one surface of the third magnet 631 , an N pole and an S pole may be magnetized in a second axis (Y axis) direction.

[0206] The second magnet 611 and the second coil 613 can generate a driving force in the direction in which the second magnet 611 and the second coil 613 face each other (the first axis (X-axis) direction), and the third magnet 631 and the third coil 633 can generate a driving force in a direction perpendicular to the direction in which the third magnet 631 and the third coil 633 face each other (the second axis (Y-axis) direction).

[0207] refer to Figure 8 ,and Figure 7 Different from the embodiment shown in , there may be differences in the position of the third position sensor 635.

[0208] The third position sensor 635 may be disposed between the second coil 613 and the third coil 633. The third position sensor 635 may at least partially face one polarity of the second magnet 611 and another polarity opposite to the one polarity of the third magnet 631. In an example, the third position sensor 635 may include a plurality of Hall sensors.

[0209] When the optical module 200 moves in the second axis (Y axis) direction, the third position sensor 635 may move closer to the first polarity (e.g., N pole) of the second magnet 611, and may move away from the second polarity (e.g., S pole) of the third magnet 631. Alternatively, the third position sensor 635 may move away from the first polarity of the second magnet 611, and may move closer to the second polarity of the third magnet 631. Therefore, the third position sensor 635 may sense the position of the optical module 200 in the second axis (Y axis) direction.

[0210] refer to Fig. 9 The second driving unit 600 may include a magnet 610 and a plurality of coils. The plurality of coils may be provided as a second coil 613 and a third coil 633.

[0211] The second coil 613 and the third coil 633 may be disposed to face the magnet 610 .

[0212] In an embodiment, a portion of the magnet 610 may face the second coil 613 , and another portion of the magnet 610 may face the third coil 633 .

[0213] One surface of the magnet 610 facing the second coil 613 and the third coil 633 may have a first polarity and a second polarity in the second axis (Y axis) direction. The first polarity and the second polarity may be opposite polarities.

[0214] In an embodiment, one surface of the magnet 610 may have an N pole, a neutral region, and an S pole in the second axis (Y axis) direction. The second coil 613 may face the N pole of the magnet 610. In addition, the third coil 633 may face the N pole and the S pole of the magnet 610.

[0215] The area occupied by the N pole and the area occupied by the S pole on one surface of the magnet 610 may be different. In an example, the area of ​​the N pole may be greater than the area of ​​the S pole.

[0216] The length of the N-pole in the second axis (Y-axis) direction may be longer than the length of the S-pole in the second axis (Y-axis) direction.

[0217] According to the above-described embodiments, the camera module may have an image stabilization operation and may have a reduced size.

[0218] Although specific examples have been shown and described above, it will be apparent after understanding the present disclosure that various changes in form and detail may be made to these examples without departing from the spirit and scope of the claims and their equivalents. The examples described in this application are understood in a descriptive sense only, and not for limiting purposes. The description of the features or aspects in each example should be considered to be applicable to similar features or aspects in other examples. If the described techniques are performed in a different order, and / or if the components in the described system, architecture, device or circuit are replaced or supplemented in a different manner and / or by other components or their equivalents, appropriate results can still be achieved. Therefore, the scope of the present disclosure is not limited by specific embodiments, but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents should be understood to be included in the present disclosure.

Claims

1. Camera module, including: case; A bearing portion, disposed in the housing; An optical module, disposed in the carrying portion; a first driving unit including a first magnet coupled to the bearing portion and a first coil disposed to face the first magnet; a second driving unit including one or more magnets coupled to the first side surface of the optical module and a plurality of coils disposed to face the one or more magnets; A first ball group and a second ball group are disposed between the bearing portion and the housing and are spaced apart from each other in a first axis direction perpendicular to the optical axis direction; a substrate on which the first coil and the plurality of coils are disposed; as well as a housing and / or an upper cover, coupled to the housing, wherein a first coil of the plurality of coils faces one polarity of the one or more magnets, and a second coil of the plurality of coils faces two polarities of the one or more magnets, wherein the first ball group includes two or more balls arranged in the direction of the optical axis, and the second ball group includes fewer balls than the first ball group, and Wherein, the substrate is installed on two side surfaces of the housing to surround the second ball group.

2. The camera module according to claim 1, in, One surface of the one or more magnets facing the inner surface of the substrate has an N pole and an S pole, the plurality of coils are provided on the inner surface of the substrate, and The N pole and the S pole are arranged in a second axis direction perpendicular to both the optical axis direction and the first axis direction.

3. The camera module according to claim 2, wherein: On the one surface of the one or more magnets, a size of an area occupied by the N pole is different from a size of an area occupied by the S pole.

4. The camera module according to claim 2, wherein: A first position sensor facing the N pole and a second position sensor at least partially facing the N pole and the S pole are disposed on the substrate.

5. The camera module according to claim 4, wherein: The first position sensor includes one Hall sensor, and the second position sensor includes a plurality of Hall sensors.

6. The camera module according to claim 1, in, The one or more magnets include a second magnet and a third magnet spaced apart from each other in a second axis direction perpendicular to the optical axis direction and the first axis direction, and The plurality of coils include a second coil and a third coil spaced apart from each other in the second axis direction.

7. The camera module according to claim 6, wherein: A length of the second magnet in the second axis direction is greater than a length of the third magnet in the second axis direction.

8. The camera module according to claim 6, wherein: The first surface of the second magnet has one of an N pole and an S pole, and the first surface of the third magnet has a polarity opposite to that of the first surface of the second magnet.

9. The camera module according to claim 8, in, the second coil faces the first surface of the second magnet, and Wherein, a portion of the third coil faces the first surface of the second magnet, and another portion of the third coil faces the first surface of the third magnet.

10. The camera module according to claim 6, in, The first surface of the second magnet has a first polarity, and the first surface of the third magnet has a second polarity and the first polarity in the second axis direction, and The first polarity and the second polarity are opposite polarities.

11. The camera module according to claim 10, in, A first position sensor of the first polarity facing the second magnet and a second position sensor of the first polarity and the second polarity at least partially facing the third magnet are disposed on the substrate, and The first position sensor includes one Hall sensor, and the second position sensor includes a plurality of Hall sensors.

12. The camera module according to claim 10, in, A first position sensor facing the first polarity of the second magnet and a second position sensor at least partially facing the first polarity of the second magnet and the second polarity of the third magnet are disposed on the substrate, and The first position sensor includes one Hall sensor, and the second position sensor includes a plurality of Hall sensors.

13. The camera module according to claim 1, in, One of the plurality of coils and the one or more magnets are configured to generate a driving force in a direction in which the one of the plurality of coils and the one or more magnets face each other, and wherein another coil among the plurality of coils and the one or more magnets are configured to generate a driving force in a direction perpendicular to a direction in which the another coil among the plurality of coils and the one or more magnets face each other.

14. The camera module according to claim 1, further comprising: a pulling magnet coupled to the second side surface of the optical module; a first yoke facing the one or more magnets in the direction of the optical axis; as well as A second yoke faces the pulling magnet in the optical axis direction.

15. Camera module, including: case; A bearing portion, disposed in the housing; A substrate, mounted on the housing; An optical module, disposed in the carrying portion; a first driving unit including a first magnet coupled to the bearing portion and a first coil disposed to face the first magnet; a second driving unit including a second magnet and a third magnet coupled to a first side surface of the optical module, and a second coil and a third coil coupled to a first side of the substrate and disposed to face the second magnet and the third magnet, respectively; a first position sensor coupled to the second side of the substrate and disposed to face the first magnet; a second position sensor and a third position sensor coupled to the first side of the substrate and disposed to face the second magnet and the third magnet; and a housing and / or an upper cover, coupled to the housing, Wherein, the first driving unit is configured to move the optical module in the direction of the optical axis, and The second driving unit is configured to move the optical module in a first direction perpendicular to the optical axis direction and in a second direction perpendicular to the optical axis direction and the first direction.

Images