Camera module

Abstract

The invention relates to a camera module. The camera module includes: a housing having an internal space; a bearing portion accommodated in the housing and configured to move in an optical axis direction with respect to the housing; a first frame accommodated in the bearing portion and configured to move relative to the bearing portion in a first axis direction perpendicular to the optical axis and a second axis direction perpendicular to both the optical axis and the first axis; a stopper coupled to the bearing portion to cover the first frame; a housing coupled to the housing to cover the internal space; and damper members disposed in the housing and the stopper, and including a first damper member, a second damper member, and a third damper member facing the mating member in different directions, and at least one of the first damper member, the second damper member, and the third damper member is disposed in the housing, and the remaining damper members of the first damper member, the second damper member, and the third damper member are disposed in the stopper.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority from Korean Patent Application No. 10-2024-0039823 filed on March 22, 2024, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety for all purposes by reference. Technical Field

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

[0004] Recently, camera modules have been implemented in portable electronic devices such as, but not limited to, smartphones, tablet personal computers (PCs), and laptop computers.

[0005] Most camera modules implemented in portable electronic devices have auto focus (AF) and optical image stabilization (OIS) functions.

[0006] As the functions of a camera module increase, the number of components mounted on the camera module increases, and the size and weight of the camera module also increase accordingly.

[0007] However, increases in the size and weight of camera modules have led to an increase in the amount of damage caused by impact when collisions occur between components. Summary of the Invention

[0008] This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

[0009] In general, the camera module includes: a housing having an internal space; a carrying portion accommodated in the housing and configured to move relative to the housing in an optical axis direction; a first frame accommodated in the carrying portion and configured to move relative to the carrying portion in a first axis direction perpendicular to the optical axis and in a second axis direction perpendicular to both the optical axis and the first axis; a stopper connected to the carrying portion to cover the first frame; an outer shell connected to the housing to cover the internal space; and a damper member disposed in the housing and the stopper, wherein the damper member includes a first damper member, a second damper member, and a third damper member, each facing a corresponding mating member in a different direction, and at least one of the first damper member, the second damper member, and the third damper member is disposed in the housing, and the remaining damper members of the first damper member, the second damper member, and the third damper member are disposed in the stopper.

[0010] The first damper member may face the first counterpart member in the optical axis direction, the second damper member may face the second counterpart member in the first axis direction, and the third damper member may face the third counterpart member in the second axis direction.

[0011] The first damper member and the second damper member may be provided in the stopper, and the third damper member may be provided in the housing.

[0012] The stopper may include: a main body, configured to cover the first frame; and a fastening portion, connected to the bearing portion and extending from the main body in the optical axis direction, wherein the first damper member may be arranged in the main body and may pass through the main body in the optical axis direction, and the second damper member may be arranged in the fastening portion and may pass through the fastening portion in the first axis direction.

[0013] A first side of the first damper member may face the housing, and a second side of the first damper member may face the first frame.

[0014] A first side of the second damper member may face the housing, and a second side of the second damper member may face the first frame.

[0015] The third damper member may be formed to protrude from one side of the housing toward the inner space in the second axial direction, and the third damper member may face the bearing portion.

[0016] The first damper member, the second damper member, and the third damper member may each be provided as a separate member.

[0017] The first damper member, the second damper member, and the third damper member may be formed of an elastic material.

[0018] The camera module may further include a lens barrel connected to the first frame and including at least one lens, wherein the lens barrel may be configured to move in a first axis direction and a second axis direction together with the first frame, and wherein the lens barrel and the first frame may be configured to move in an optical axis direction together with the carrier.

[0019] In general, the camera module includes: a housing unit having an internal space; a bearing portion accommodated in the housing unit; a first frame accommodated in the bearing portion and connected to the lens barrel; a stopper connected to the bearing portion in the optical axis direction; and a damper member disposed in the housing unit and the stopper, wherein the damper member includes: a first damper member and a second damper member disposed in the stopper and configured to face the housing unit and the first frame; and a third damper member disposed in the housing unit and configured to face the bearing portion.

[0020] The first damper member may face the housing unit and the first frame in the optical axis direction, and the first damper member may include a first protrusion and a second protrusion, the first protrusion protruding from the stopper toward the housing unit in the optical axis direction, and the second protrusion protruding from the stopper toward the first frame in the optical axis direction.

[0021] The second damper member may face the housing unit and the first frame in a first axial direction perpendicular to the optical axis, and the second damper member may include a third protrusion and a fourth protrusion, the third protrusion protruding from the stopper toward the housing unit in the first axial direction, and the fourth protrusion protruding from the stopper toward the first frame in the first axial direction.

[0022] The third damper member may face the bearing portion in a second axial direction perpendicular to the optical axis, and may protrude from one side of the housing unit toward the bearing portion in the second axial direction.

[0023] The first damper member, the second damper member, and the third damper member may each be provided as a separate member.

[0024] The stopper may include: a main body configured to cover the first frame; and a plurality of fastening portions connected to the bearing portion and extending from each corner of the main body in the optical axis direction, wherein the first damper member is disposed in the main body and the second damper member is disposed in at least a portion of the plurality of fastening portions.

[0025] Other features and aspects will be apparent from the following detailed description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a perspective view of an exemplary camera module according to one or more embodiments.

[0027] Figure 2 is an exploded perspective view of an exemplary camera module according to one or more embodiments.

[0028] Figure 3 is an exploded perspective view of a focus adjustment unit according to one or more embodiments.

[0029] Figure 4 is an exploded perspective view of a shake correction unit according to one or more embodiments.

[0030] Figure 5 is a perspective view of a stopper according to one or more embodiments.

[0031] Figure 6 is a side view of a stopper according to one or more embodiments.

[0032] Figure 7A coupled state of a stopper according to one or more embodiments is shown.

[0033] Figure 8 It is along Figure 1 A partial cross-sectional view taken along line II'.

[0034] Figure 9 It is along Figure 1 A partial cross-sectional view taken along line II-II' parallel to the XY plane.

[0035] Figure 10 is a perspective view of a housing according to one or more embodiments.

[0036] Figure 11 It is along Figure 1 A partial cross-sectional view taken along line III-III'.

[0037] Throughout the drawings and detailed description, unless otherwise described, the same reference numerals refer to the same elements. For 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

[0038] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the method, device and / or system described herein. However, after understanding the disclosure of the application, various changes, modifications and equivalents of the method, device and / or system described herein will be apparent. For example, the order of operations described herein and / or the order within the operation are only examples, and are not limited to the order set forth herein, but can be changed as will be apparent after understanding the disclosure of the application, except for the order of operations that must occur in a certain order and / or the order within the operation. As another example, the order of operations and / or the order within the operation can be performed in parallel, except for at least a portion of the order of operations that must occur in a certain order (e.g., a specific order) and / or at least a portion of the order within the operation. In addition, in order to improve clarity and brevity, the description of features known after understanding the disclosure of the application can be omitted.

[0039] Although terms such as "first," "second," and "third," or A, B, (a), (b), etc., may be used herein to describe various members, components, regions, layers, or parts, these members, components, regions, layers, or parts are not limited by these terms. Each of these terms is not used to define, for example, the nature, order, or sequence of the corresponding member, component, region, layer, or part, but is only used to distinguish the corresponding member, component, region, layer, or part from other members, components, regions, layers, or parts. Thus, the first member, first component, first region, first layer, or first part mentioned in the examples described herein may also be referred to as the second member, second component, second region, second layer, or second part without departing from the teachings of the examples.

[0040] Throughout this specification, when a component, element, or layer is described as being “on,” “connected to,” “coupled to,” or “engaged to” another component, element, or layer, it may be directly “on” (e.g., in contact with), directly “connected to,” directly “coupled to,” or directly “engaged to” the other component, element, or layer, or one or more other components, elements, or layers may reasonably be present between them. When a component, element, or layer is described as being “directly on,” “directly connected to,” “directly coupled to,” or “directly engaged to” another component, element, or layer, there are no other components, elements, or layers between them. Similarly, expressions such as “between” and “immediately between,” as well as “adjacent to” and “immediately adjacent to,” may also be interpreted as described above.

[0041] The terms used herein are only used to describe various examples, rather than to limit the present disclosure. Unless the context clearly indicates otherwise, the terms "a", "an" and "the" are intended to also include plural forms. As non-limiting examples, the terms "include", "comprising" and "having" specify the existence of stated features, quantities, operations, components, elements and / or their combinations, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations, nor exclude the existence of alternatives that replace the features, quantities, operations, components, elements and / or their combinations. In addition, although an embodiment can set forth the existence of such terms "include", "comprising" and "having" specifying stated features, quantities, operations, components, elements and / or their combinations, there can be other embodiments in which one or more of the stated features, quantities, operations, components, elements and / or their combinations are not present.

[0042] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more of the associated listed items. The phrases "at least one of A, B, and C," etc. are intended to have separate meanings, and these phrases "at least one of A, B, and C," etc. also include examples in which one or more of A, B, and C can be present (e.g., any combination of one or more of A, B, and C), unless the corresponding description and implementation require that such a list (e.g., "at least one of A, B, and C") be interpreted as having a combined meaning.

[0043] The features described herein can be implemented in different forms and are not to be construed as being limited to the examples described herein. On the contrary, the examples described herein are provided only to illustrate some of the many possible ways of realizing the method, device and / or system described herein that will be apparent after understanding the disclosure of the present application. In this article, the term "can" is used with respect to an example or embodiment, such as what an example or embodiment may include or implement, meaning that there is at least one example or embodiment that includes or implements this feature, and all examples and embodiments are not limited thereto. The terms "example" or "implementation" used herein have the same meaning (for example, the wording "in one example" has the same meaning as "in one embodiment", and "in one or more examples" has the same meaning as "in one or more embodiments").

[0044] One or more examples may provide a camera module that mitigates impact and damage when a collision occurs between components.

[0045] An exemplary camera module 1000 (see FIG. Figure 1 ) can be used to capture images or videos of external objects.

[0046] In one or more examples, example camera module 1000 may be implemented in a portable electronic device such as, but not limited to, a smartphone.

[0047] Figure 1 is a perspective view of an exemplary camera module according to one or more embodiments, and Figure 2 is an exploded perspective view of an exemplary camera module according to one or more embodiments.

[0048] Reference Figure 1 and Figure 2 , an exemplary camera module 1000 according to one or more embodiments may include a lens barrel 210, a lens driving device that moves the lens barrel 210, an image sensor module 700 that converts light incident through the lens barrel 210 into an electrical signal, and a housing unit that accommodates the lens barrel 210 and the lens driving device.

[0049] The housing unit may include a housing 110 and a casing 120 .

[0050] The lens barrel 210 may have a hollow cylindrical shape, and at least one lens may be disposed within the lens barrel 210 .

[0051] At least one lens may be installed in the optical axis direction (Z-axis direction) within the lens barrel 210. The at least one lens may be provided in a desired number, and each lens may have the same or different optical characteristics.

[0052] The lens driving device may be a device that moves the lens barrel 210 .

[0053] In an example, the lens driving device may include a focus adjustment unit 400 (see Figure 3 ) and the shake correction unit 500 (see Figure 4 ). The focus adjustment unit 400 can adjust the focus of the camera by moving the lens barrel 210 in the optical axis direction (Z-axis direction), and the shake correction unit 500 can correct shake during imaging by moving the lens barrel 210 in directions (X-axis direction and Y-axis direction) perpendicular to the optical axis (Z-axis).

[0054] The image sensor module 700 may be a device that converts light incident through the lens barrel 210 into an electrical signal.

[0055] In an example, the image sensor module 700 may include an image sensor 710 and a sensor substrate 720 on which the image sensor 710 is mounted.

[0056] The image sensor 710 may convert light incident through the lens barrel 210 into an electrical signal. For example, as a non-limiting example, the image sensor 710 may be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS).

[0057] The electrical signal converted by the image sensor 710 may be output as an image or video through a display device of the portable electronic device.

[0058] The image sensor 710 may be electrically connected to a sensor substrate 720. For example, the sensor substrate 720 may be a printed circuit board (PCB).

[0059] The housing 110 may house the lens barrel 210 and the lens driving device. In an example, the housing 110 may have an inner space, and the lens barrel 210 and the lens driving device may be housed in the inner space of the housing 110.

[0060] In addition, the image sensor module 700 may be disposed under the housing 110. In an example, the sensor substrate 720 may be coupled to the bottom surface of the housing 110, and the image sensor 710 may be exposed to the inner space of the housing 110 in a state where the sensor substrate 720 is coupled to the housing 110.

[0061] In an example, a main substrate 610 that provides a driving signal to the focus adjustment unit 400 and the shake correction unit 500 may be disposed on a side of the housing 110. In an example, the main substrate 610 may be disposed to surround one or more sides of the housing 110.

[0062] As described below, the driving coils and the position sensor constituting the focus adjustment unit 400 and the shake correction unit 500 may be provided on the main substrate 610 .

[0063] The housing 110 may include an opening on a side surface thereof, and the driving coil and the position sensor may be disposed in the opening and exposed to the inner space of the housing 110 .

[0064] The housing 120 may be coupled to the case 110 to cover the internal space, thereby protecting components accommodated in the internal space.

[0065] In addition, the housing 120 may also have a function of blocking electromagnetic waves. Therefore, the housing 120 may be formed of a metal material and may be grounded to a ground pad provided on the sensor substrate 720.

[0066] In the following, reference Figure 2 and Figure 3 The focus adjusting unit 400 of the lens driving apparatus of the camera module 1000 according to one or more embodiments is described.

[0067] Figure 3 is an exploded perspective view of a focus adjustment unit according to one or more embodiments.

[0068] In an example, the focus adjustment unit 400 may include a carrier 310 accommodating the lens barrel 210 and a focus adjustment driving unit generating a driving force to move the lens barrel 210 and the carrier 310 in an optical axis direction (Z-axis direction).

[0069] The carrier 310 may accommodate the lens barrel 210 and may be accommodated in the inner space of the housing 110 .

[0070] Based on the driving force generated by the focus adjustment driving unit, the carrier 310 may move relative to the housing 110 in the optical axis direction (Z-axis direction) together with the lens barrel 210 .

[0071] The focus adjustment driving unit may include a focus adjustment magnet 410 and a focus adjustment coil 430 .

[0072] In an example, the focus adjustment magnet 410 may be disposed on one surface of the carrier 310 , and the focus adjustment coil 430 may be disposed on one surface of the housing 110 through the main substrate 610 .

[0073] In an example, the focus adjustment coil 430 may be provided on one surface of the housing 110 , the one surface facing one surface of the carrier 310 on which the focus adjustment magnet 410 is provided.

[0074] The focus adjustment magnet 410 and the focus adjustment coil 430 may face each other in a direction perpendicular to the optical axis (Z-axis) direction, and may directly face each other through the opening of the housing 110 .

[0075] exist Figure 3 , a portion of the main substrate 610 on which the focus adjustment coil 430 is provided is shown as if it is separated from the other portions. However, this is for ease of description, and in an example, the main substrate 610 may be provided as a single substrate.

[0076] When power is supplied to the focus adjustment coil 430 , the carrier 310 may move in the optical axis direction (Z-axis direction) based on electromagnetic influence between the focus adjustment magnet 410 and the focus adjustment coil 430 .

[0077] In an example, the focus adjustment magnet 410 may be a moving member that moves in the optical axis direction (Z-axis direction) together with the carrier 310 , and the focus adjustment coil 430 may be a fixed member that is fixedly provided in the housing 110 .

[0078] However, in an example, the positions of the focus adjustment magnet 410 and the focus adjustment coil 430 may be interchanged.

[0079] The rolling member B1 may be provided between the bearing portion 310 and the housing 110 to reduce frictional contact between the bearing portion 310 and the housing 110 when the bearing portion 310 moves. For example, the rolling member B1 may be a plurality of ball members.

[0080] One or more rolling members B1 may be provided on both sides of the focus adjustment magnet 410 .

[0081] In an example, the number of rolling members B1 provided on a first side of the focus adjustment magnet 410 may be greater than the number of rolling members B1 provided on a second side of the focus adjustment magnet 410. In this example, the rolling members B1 provided on one side of the focus adjustment magnet 410 may operate as a main guide, while the rolling members B1 provided on the other side of the focus adjustment magnet 410 may operate as an auxiliary guide.

[0082] The bearing portion 310 may include respective first guide recesses 311 and 313 on both sides of the focus adjustment magnet 410 , in which a portion of the rolling member B1 is accommodated.

[0083] In an example, the first guide recesses 311 and 313 may extend in the optical axis direction (Z-axis direction), and the rolling member B1 may contact the first guide recesses 311 and 313 at one or two points.

[0084] The housing 110 may include second guide recesses 111 and 113 facing the first guide recesses 311 and 313 , respectively. Another portion of the rolling member B1 may be received in the second guide recesses 111 and 113 .

[0085] In an example, the second guide recesses 111 and 113 may also extend in the optical axis direction (Z-axis direction) similarly to the first guide recesses 311 and 313. In addition, in an example, the rolling member B1 may contact the second guide recesses 111 and 113 at one or two points.

[0086] The first yoke 470 may be disposed on an outer surface of the main substrate 610. In an example, the first yoke 470 may be formed of a magnetic material.

[0087] The first magnetic yoke 470 can face the focus adjustment magnet 410, and the focus adjustment coil 430 is inserted between the first magnetic yoke 470 and the focus adjustment magnet 410, so that the first magnetic yoke 470 and the focus adjustment magnet 410 can face each other in a direction perpendicular to the optical axis (Z axis).

[0088] A magnetic attractive force may act between the first yoke 470 and the focus adjustment magnet 410 in a facing direction, ie, in a direction perpendicular to the optical axis (Z axis).

[0089] Therefore, the bearing portion 310 may be supported in close contact with the housing 110 in a direction perpendicular to the optical axis (Z axis), and the one or more rolling members B1 may be held in contact with the bearing portion 310 and the housing 110 .

[0090] In addition, the first yoke 470 may form a magnetic circuit with the focus adjustment magnet 410 , thereby concentrating the magnetic force generated by the focus adjustment magnet 410 .

[0091] In an example, the focus adjusting unit 400 may use a closed-loop control method that detects the position of the lens barrel 210 and provides feedback.

[0092] Therefore, the focus adjusting unit 400 may include a first position sensor 450 .

[0093] The first position sensor 450 may detect the position of the lens barrel 210 in the optical axis direction (Z-axis direction).

[0094] The first position sensor 450 may be provided on one side of the housing 110 together with the focus adjustment coil 430 through the main substrate 610. In an example, the first position sensor 450 may be provided inside or outside the focus adjustment coil 430.

[0095] The first position sensor 450 may be a magnetic sensor, such as a Hall sensor.

[0096] In an example, the first position sensor 450 may be provided as another type of sensor.

[0097] Next, refer to Figure 2 and Figure 4 The shake correction unit 500 of the lens driving apparatus of the camera module 1000 according to one or more embodiments is described.

[0098] Figure 4 is an exploded perspective view of a shake correction unit according to one or more embodiments.

[0099] When shaking occurs due to hand tremors of a user when capturing a video or the like, the shake correction unit 500 may compensate for the shaking by giving a relative displacement corresponding to the shaking to the lens barrel 210 .

[0100] According to one or more embodiments, the shake correction unit 500 may include a first frame 330 and a second frame 350 that guide the movement of the lens barrel 210, and a shake correction driving unit that generates a driving force to move the first frame 330 and the second frame 350 in directions (X-axis direction and Y-axis direction) perpendicular to the optical axis (Z-axis).

[0101] The first frame 330 and the second frame 350 may be accommodated in the carrier 310. In an example, the first frame 330 and the second frame 350 may be accommodated in the carrier 310 in sequence in the optical axis direction (Z-axis direction).

[0102] In addition, the lens barrel 210 may be inserted into and fixed to the first frame 330 .

[0103] Based on the driving force generated by the shake correction driving unit, the first frame 330 and the second frame 350 can move relative to the carrier 310 in directions (X-axis and Y-axis directions) perpendicular to the optical axis (Z-axis) together with the lens barrel 210 .

[0104] In an example, one of the first frame 330 and the second frame 350 can move in a first axis direction (X-axis direction) perpendicular to the optical axis (Z-axis), and the other of the first frame 330 and the second frame 350 can move in a second axis direction (Y-axis direction) perpendicular to both the optical axis (Z-axis) and the first axis (X-axis).

[0105] The shake correction driving unit may include a shake correction magnet and a shake correction coil.

[0106] In an example, the shake correction driving unit may include a first magnet 510a and a first coil 530a generating a driving force in a first axis direction (X axis direction) and a second magnet 510b and a second coil 530b generating a driving force in a second axis direction (Y axis direction).

[0107] In an example, the first magnet 510a and the second magnet 510b may be provided on two perpendicular side surfaces of the first frame 330. Therefore, the first frame 330 may move in a first axis direction (X axis direction) and a second axis direction (Y axis direction).

[0108] In one example, the first coil 530a and the second coil 530b may be disposed in the housing 110 through the main substrate 610. For example, the first coil 530a and the second coil 530b may be disposed on two side surfaces of the housing 110, respectively, which face two mutually perpendicular side surfaces of the first frame 330 on which the first magnet 510a and the second magnet 510b are disposed.

[0109] In an example, the shake correction magnet and the shake correction coil may generate a driving force in a facing direction.

[0110] Therefore, the first magnet 510a and the first coil 530a can be arranged to face each other in the first axis direction (X axis direction), and the second magnet 510b and the second coil 530b can be arranged to face each other in the second axis direction (Y axis direction).

[0111] In an example, the first magnet 510a and the second magnet 510b can be movable components that move together with the first frame 330 in a direction (X-axis direction and Y-axis direction) perpendicular to the optical axis (Z-axis), and the first coil 530a and the second coil 530b can be fixed components fixedly disposed in the housing 110.

[0112] However, in an example, the positions of the first magnet 510a and the first coil 530a and the positions of the second magnet 510b and the second coil 530b may be interchanged.

[0113] According to one or more embodiments, a plurality of ball members may be provided between the first frame 330 and the second frame 350 and between the second frame 350 and the bearing portion 310 .

[0114] The plurality of ball members may guide movement of the first frame 330 or the second frame 350 and may maintain a gap between the first frame 330 , the second frame 350 , and the bearing portion 310 .

[0115] The plurality of ball members may include a first ball member B2 disposed between the second frame 350 and the bearing portion 310. In a non-limiting example, the first ball member B2 may include three or more ball members. However, this is merely an example, and the first ball member B2 may include fewer than three balls.

[0116] The first ball member B2 may guide the movement of the second frame 350 in the first axis direction (X axis direction).

[0117] In the example, since the first frame 330 is supported by the second frame 350 and the lens barrel 210 is fixed to the first frame 330, when the second frame 350 moves in the first axis direction (X-axis direction), the lens barrel 210 and the first frame 330 can move in the first axis direction (X-axis direction) together with the second frame 350.

[0118] The second frame 350 may include a third guide recess 351 on a surface facing the bearing portion 310 in the optical axis direction (Z-axis direction), in which a portion of the first ball member B2 is accommodated.

[0119] In addition, the bearing portion 310 may be provided with a fourth guide recess 315 on a surface facing the second frame 350 in the optical axis direction (Z axis direction), and another portion of the first ball member B2 is accommodated in the fourth guide recess 315. The fourth guide recess 315 may face the third guide recess 351 in the optical axis direction (Z axis direction).

[0120] The third guide recess 351 and the fourth guide recess 315 may extend in the first axis direction (X-axis direction).

[0121] Therefore, when a driving force is generated in the first axis direction (X axis direction), the first ball member B2 can roll in the first axis direction (X axis direction) along the third guide recess 351 and the fourth guide recess 315, and the movement of the first ball member B2 in the second axis direction (Y axis direction) can be restricted.

[0122] The plurality of ball members may include a second ball member B3 disposed between the first frame 330 and the second frame 350. In a non-limiting example, the second ball member B3 may include three or more ball members.

[0123] The second ball member B3 may guide the movement of the first frame 330 in the second axis direction (Y-axis direction).

[0124] In an example, since the lens barrel 210 is fixed to the first frame 330 , when the first frame 330 moves in the second axis direction (Y axis direction), the lens barrel 210 may move in the second axis direction (Y axis direction) together with the first frame 330 .

[0125] The first frame 330 may include a fifth guide recess 331 on a surface facing the second frame 350 in the optical axis direction (Z-axis direction), in which a portion of the second ball member B3 is accommodated.

[0126] In addition, the second frame 350 may include a sixth guide recess 353 located on a surface facing the first frame 330 in the optical axis direction (Z-axis direction), and another portion of the second ball member B3 is accommodated in the sixth guide recess 353. The sixth guide recess 353 may face the fifth guide recess 331 in the optical axis direction (Z-axis direction).

[0127] The fifth guide recess 331 and the sixth guide recess 353 may extend in the second axis direction (Y-axis direction).

[0128] Therefore, when a driving force is generated in the second axis direction (Y axis direction), the second ball member B3 can roll in the second axis direction (Y axis direction) along the fifth guide recess 331 and the sixth guide recess 353, and the movement of the second ball member B3 in the first axis direction (X axis direction) can be restricted.

[0129] In an example, the second frame 350 may be omitted, and the first frame 330 may be received in the carrier 310 with the lens barrel 210 being fixed.

[0130] In this example, when a driving force is generated in the first axis direction (X-axis direction), a plurality of ball members arranged between the first frame 330 and the supporting portion 310 can roll in the first axis direction (X-axis direction), and when a driving force is generated in the second axis direction (Y-axis direction), a plurality of ball members arranged between the first frame 330 and the supporting portion 310 can roll in the second axis direction (Y-axis direction).

[0131] In addition, for this purpose, the guide recesses provided on the surfaces of the first frame 330 and the supporting portion 310 facing each other in the optical axis direction (Z-axis direction) can have a shape that does not restrict the movement direction of multiple ball members in a plane perpendicular to the optical axis (Z-axis).

[0132] In an example, a plurality of yokes 570a and 570b may be provided on the carrier 310. In an example, the plurality of yokes 570a and 570b may be formed of a magnetic material.

[0133] The plurality of yokes 570 a and 570 b may be arranged to face the first magnet 510 a and the second magnet 510 b provided on the first frame 330 in the optical axis direction (Z-axis direction).

[0134] A magnetic attractive force may act between the plurality of yokes 570 a and 570 b and the first and second magnets 510 a and 510 b in a direction facing each other, ie, in the optical axis direction (Z-axis direction).

[0135] Therefore, the first frame 330 and the second frame 350 can be pressed against the bearing part 310 in the optical axis direction (Z-axis direction), and the first ball member B2 and the second ball member B3 can each maintain contact with the first frame 330, the second frame 350 and the bearing part 310.

[0136] In an example, the shake correction unit 500 may use a closed-loop control method that detects the position of the lens barrel 210 and provides feedback.

[0137] Therefore, the shake correction unit 500 may include a second position sensor 550 a and a third position sensor 550 b .

[0138] The second position sensor 550 a and the third position sensor 550 b may detect the position of the lens barrel 210 in the first axis direction (X axis direction) and the second axis direction (Y axis direction), respectively.

[0139] The second position sensor 550a and the third position sensor 550b may be provided on one side of the housing 110 together with the first coil 530a and the second coil 530b, respectively, through the main substrate 610. In an example, the second position sensor 550a and the third position sensor 550b may be provided inside or outside the first coil 530a and the second coil 530b, respectively.

[0140] In an example, the second position sensor 550a and the third position sensor 550b may be magnetic sensors, such as Hall sensors.

[0141] In an example, the second position sensor 550a and the third position sensor 550b may be provided as different types of sensors.

[0142] In an example, the camera module 1000 according to one or more embodiments may further include a stopper 130 to absorb shock transmitted to internal components due to external impact, etc. and prevent the first and second frames 330 and 350 from being detached or separated from the carrier 310 .

[0143] Next, refer to Figures 5 to 9 The stopper 130 according to one or more embodiments is described.

[0144] Figure 5 is a perspective view of a stopper according to one or more embodiments, Figure 6 is a side view of a stopper according to one or more embodiments, and Figure 7 : is a view showing a coupled state of a stopper according to one or more embodiments. Figure 8 It is along Figure 1 A partial cross-sectional view taken along line II', and Figure 9 It is along Figure 1 A partial cross-sectional view taken along line II-II' parallel to the XY plane.

[0145] The stopper 130 may be coupled to the carrier 310 to cover at least a portion of an upper surface of the first frame 330 .

[0146] The stopper 130 may include a body 131 provided to cover the upper surface of the first frame 330 and a fastening portion 133 extending from each corner of the body 131 in the optical axis direction (Z-axis direction).

[0147] In an example, the fastening portions 133 may be provided at corners of both sides of the body 131 facing each other in the first axis direction (X-axis direction) to be coupled to the bearing portion 310 .

[0148] The stopper 130 may be coupled to the carrier 310 through a fastening portion 133. In an example, the fastening portion 133 may be fitted into a recess included in the carrier 310.

[0149] In an example, the stopper 130 can cover the first frame 330 and the second frame 350 accommodated in the internal space of the bearing portion 310, and since the stopper 130 is connected to the bearing portion 310, the first frame 330 and the second frame 350 accommodated in the internal space of the bearing portion 310 can be prevented from being separated from the bearing portion 310 due to external impact, etc.

[0150] In addition, the stopper 130 may include damper members 151 and 153 to absorb shock transferred to the components when an external shock occurs.

[0151] In an example, the damper members 151 and 153 may be insert-injection molded into the stopper 130. Alternatively, the damper members 151 and 153 may be manufactured separately from the stopper 130 and then bonded to the stopper 130 with an adhesive or the like, or may be fitted into holes provided in the stopper 130.

[0152] The damper members 151 and 153 may be provided between adjacent components in which a collision may occur. Therefore, when an external impact occurs, the adjacent components may not collide with each other, but may collide with the damper members 151 and 153.

[0153] In addition, the damper members 151 and 153 may be formed of an elastic material or a ductile material to effectively absorb impact upon collision with components.

[0154] According to one or more embodiments, the damper members 151 and 153 may be provided in at least one of the body 131 and the fastening portion 133 of the stopper 130 .

[0155] Reference Figure 6 The damper members 151 and 153 may include one or more of a first damper member 151 provided in the body 131 of the stopper 130 and a second damper member 153 provided in the fastening portion 133 of the stopper 130. In an example, the damper members 151 and 153 may include both the first damper member 151 and the second damper member 153.

[0156] In an example, the first damper member 151 and the second damper member 153 may be separate members. Therefore, the coupling force between the body 131 and the first damper member 151 and between the fastening portion 133 and the second damper member 153 may be improved.

[0157] In addition, the first damper member 151 and the second damper member 153 may be the same as the third damper member 155 (see Figure 10 )Separated components.

[0158] There may be one or more first damper members 151. Preferably, the first damper member 151 may be provided in plural.

[0159] The first damper member 151 may be provided to penetrate the body 131 in the optical axis direction (Z-axis direction) to absorb impact between adjacent components in the optical axis direction (Z-axis direction).

[0160] In an example, the first damper member 151 may include a first protrusion 151 a protruding toward an upper side (+Z direction) of the body 131 and a second protrusion 151 b protruding toward a lower side (−Z direction) of the body 131 .

[0161] The first protrusion 151a can directly face the mating component, such as the housing 120 set above the stopper 130, in the optical axis direction (Z axis direction), and the second protrusion 151b can directly face the first frame 330 set below the stopper 130 in the optical axis direction (Z axis direction).

[0162] Therefore, when an impact is applied to the camera module 1000 in the optical axis direction (Z-axis direction), a direct collision between the first frame 330 and the housing 120 may be prevented by the first damper member 151 .

[0163] In addition, the first damper member 151 may also limit the movement range of the carrying portion 310 .

[0164] Reference Figure 8 When the carrier 310 moves in the optical axis direction (Z-axis direction), the first protrusion 151a of the first damper member 151 may first contact the housing 120. Therefore, collision between components due to movement of the carrier 310 in the optical axis direction (Z-axis direction) may be prevented, and the moving range of the carrier 310 may be limited.

[0165] The second damper member 153 may be provided in plural. In an example, one second damper member 153 may be provided in each of the fastening portions 133 provided on different sides of the body 131, and preferably, may be provided in all of the fastening portions 133.

[0166] The second damper member 153 may be provided to pass through the fastening portion 133 in the first axis direction (X axis direction) to absorb impact between adjacent components in the first axis direction (X axis direction).

[0167] In an example, the second damper member 153 may include a third protrusion 153 a protruding toward an outer side of the fastening portion 133 and a fourth protrusion 153 b protruding toward an inner side of the fastening portion 133 .

[0168] The third protrusion 153a can directly face the mating member in the first axis direction (X-axis direction), such as the shell 110 set on the outer side of the stopper 130, and the fourth protrusion 153b can directly face the mating member in the first axis direction (X-axis direction), such as the first frame 330 set on the inner side of the stopper 130.

[0169] Therefore, when an impact is applied to the camera module 1000 in the first axis direction (X axis direction), a direct collision between the housing 110 and the first frame 330 may be prevented by the second damper member 153 .

[0170] In addition, the camera module 1000 according to one or more embodiments may further include a third damper member 155 that absorbs impact applied in the second axis direction (Y-axis direction).

[0171] Figure 10 is a perspective view of an exemplary housing 110 according to one or more embodiments, and Figure 11 It is along Figure 1 A partial cross-sectional view taken along line III-III'.

[0172] Reference Figure 10 , the third damper member 155 may be disposed in the housing 110 .

[0173] In an example, the third damper member 155 may be insert injection molded into the housing 110. Alternatively, the third damper member 155 may be manufactured separately from the housing 110 and then coupled to the housing 110.

[0174] In an example, the third damper member 155 may be provided on at least one of both sides of the housing 110 facing each other in the second axis direction (Y-axis direction).

[0175] In an example, the third damper member 155 may be formed to protrude toward the inner space of the housing 110 from at least one of both sides of the housing 110 facing each other in the second axis direction (Y-axis direction).

[0176] There may be one or more third damper members 155. In an example, the third damper member 155 may be provided in plurality. For example, the plurality of third damper members 155 may be spaced apart from each other on one side of the housing 110 in the first axial direction (X-axis direction) with openings therebetween.

[0177] The third damper member 155 may be formed to protrude from one side of the housing 110 toward the inner space of the housing 110 .

[0178] The third damper member 155 may directly face a counterpart member in the second axis direction (Y axis direction), such as the bearing portion 310 disposed in the housing 110. The third damper members 155 and 153 may be formed of an elastic material or a ductile material to effectively absorb impact when colliding with components.

[0179] Therefore, when an impact is applied to the camera module 1000 in the second axis direction (Y axis direction), a direct collision between the housing 110 and the carrier 310 may be prevented by the third damper member 155 .

[0180] The camera module according to one or more embodiments can mitigate shock and damage when collision occurs between components.

[0181] Although this disclosure includes specific examples, it will be apparent after understanding the disclosure of this application that various changes in form and detail can be made in these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be considered merely descriptive and not for purposes of limitation. The description of features or aspects in each example is considered to be applicable to similar features or aspects in other examples. Suitable results can also be obtained if the described techniques are performed in a different order, and / or if components in the described systems, architectures, devices, or circuits are combined in different ways and / or replaced or supplemented by other components or their equivalents.

[0182] Therefore, the scope of the present disclosure includes the claims and their equivalents in addition to the disclosure above and all the accompanying drawings, that is, all variations within the scope of the claims and their equivalents should be construed as being included in the present disclosure.

Claims

1. A camera module, comprising: a housing having an interior space; a bearing portion accommodated in the housing and configured to move relative to the housing in the optical axis direction; a first frame housed in the carrying portion and configured to move relative to the carrying portion in a first axis direction perpendicular to the optical axis and in a second axis direction perpendicular to both the optical axis and the first axis; a stopper coupled to the bearing portion to cover the first frame; a housing coupled to the shell to cover the interior space; as well as a damper member disposed in the housing and the stopper, wherein the damper member includes a first damper member, a second damper member, and a third damper member, the first damper member, the second damper member, and the third damper member each facing a corresponding counterpart member in a different direction, and At least one of the first damper member, the second damper member, and the third damper member is provided in the housing, and the remaining damper members of the first damper member, the second damper member, and the third damper member are provided in the stopper.

2. The camera module according to claim 1, wherein: The first damper member faces a first counterpart member in the optical axis direction, the second damper member faces a second counterpart member in the first axis direction, and the third damper member faces a third counterpart member in the second axis direction.

3. The camera module according to claim 2, wherein: The first damper member and the second damper member are provided in the stopper, and the third damper member is provided in the housing.

4. The camera module according to claim 3, wherein: The stopper comprises: a main body, configured to cover the first frame; and a fastening portion coupled to the bearing portion and extending from the main body in the optical axis direction, and wherein the first damper member is provided in the main body and passes through the main body in the optical axis direction, and the second damper member is provided in the fastening portion and passes through the fastening portion in the first axis direction.

5. The camera module according to claim 4, wherein: A first side of the first damper member faces the housing, and a second side of the first damper member faces the first frame.

6. The camera module according to claim 4, wherein: A first side of the second damper member faces the housing, and a second side of the second damper member faces the first frame.

7. The camera module according to claim 3, wherein: the third damper member is formed to protrude from one side of the housing toward the inner space in the second axial direction, and The third damper member faces the bearing portion.

8. The camera module according to claim 1, wherein: The first damper member, the second damper member, and the third damper member are each provided as a separate member.

9. The camera module according to claim 1, wherein: The first damper member, the second damper member, and the third damper member are formed of an elastic material.

10. The camera module according to claim 1, further comprising: a lens barrel coupled to the first frame and comprising at least one lens, wherein the lens barrel is configured to move together with the first frame in the first axis direction and the second axis direction, and The lens barrel and the first frame are configured to move together with the bearing portion in the direction of the optical axis.

11. A camera module, comprising: a housing unit having an interior space; a bearing portion, accommodated in the housing unit; a first frame received in the carrier portion and coupled to the lens barrel; a stopper coupled to the bearing portion in the optical axis direction; as well as a damper member provided in the housing unit and the stopper, Wherein, the damper component comprises: a first damper member and a second damper member provided in the stopper and arranged to face the housing unit and the first frame; and A third damper member is provided in the housing unit and is configured to face the bearing portion.

12. The camera module according to claim 11, wherein: the first damper member faces the housing unit and the first frame in the optical axis direction, and The first damper member comprises: a first protrusion protruding from the stopper toward the housing unit in the optical axis direction and a second protrusion protruding from the stopper toward the first frame in the optical axis direction.

13. The camera module according to claim 11, wherein: the second damper member faces the housing unit and the first frame in a first axis direction perpendicular to the optical axis, and The second damper member comprises: a third protrusion that protrudes from the stopper toward the housing unit in the first axial direction, and a fourth protrusion that protrudes from the stopper toward the first frame in the first axial direction.

14. The camera module according to claim 11, wherein: The third damper member faces the bearing portion in a second axial direction perpendicular to the optical axis and protrudes from one side of the housing unit toward the bearing portion in the second axial direction.

15. The camera module according to claim 11, wherein The first damper member, the second damper member, and the third damper member are each provided as a separate member.

16. The camera module of claim 11, wherein: The stopper comprises: a main body, configured to cover the first frame; and a plurality of fastening portions coupled to the bearing portion and extending from each corner of the main body in the optical axis direction, and wherein the first damper member is provided in the main body, and the second damper member is provided in at least a portion of the plurality of fastening portions.

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