KR102679709B1 - Lens driving device, dual camera module - Google Patents

Abstract

This embodiment includes a first camera module and a second camera module including a second side opposite to the first side of the first camera module, and the first camera module includes a cover; a bobbin disposed inside the cover; a coil disposed on the bobbin; and two magnets disposed to face the coil on a side of the cover in a direction perpendicular to the first side of the first camera module and facing each other, wherein each of the two magnets is disposed on the upper surface, the lower surface, and the coil. It includes an inner surface facing the inner surface, an outer surface disposed opposite to the inner surface, and both sides connecting the inner surface and the outer surface, and both sides of each of the two magnets are disposed on the first surface side of the first camera module. It includes a first surface and a second surface disposed opposite to the first surface, and each of the two magnets includes a first groove disposed at a first corner connecting the first surface and the inner surface, and the second magnet. A dual camera module including a second groove disposed at a second corner connecting the surface and the inner surface, wherein the length of the first groove from the first surface is smaller than the length from the second surface of the second groove. It's about.

Description

Lens driving device, dual camera module

This embodiment relates to a lens driving device and a dual camera module.

The content described below only provides background information for this embodiment and does not describe prior art.

As various types of portable terminals become widespread and wireless Internet services become commercialized, consumer demands related to portable terminals are also diversifying, and various types of additional devices are being installed on portable terminals.

Among them, a representative one is a camera module that takes photos or videos of a subject. Meanwhile, dual camera modules that place two camera modules side by side are being researched recently.

However, in the conventional dual camera module, the distance between camera modules is narrow, so there is a problem in that mutual magnetic field interference occurs.

(Patent Document 1) WO 2016-156996 A1

This embodiment seeks to provide a dual camera module that minimizes the occurrence of magnetic field interference between two camera modules.

Additionally, this embodiment seeks to provide a lens driving device that minimizes electromagnetic force deviation generated due to a change in the shape of a magnet inside the lens driving device.

The dual camera module according to this embodiment includes a first camera module and a second camera module including a second side opposite to the first side of the first camera module, and the first camera module includes a cover; a bobbin disposed inside the cover; a coil disposed on the bobbin; and two magnets disposed to face the coil on a side of the cover in a direction perpendicular to the first side of the first camera module and facing each other, wherein each of the two magnets is disposed on the upper surface, the lower surface, and the coil. It includes an inner surface facing the inner surface, an outer surface disposed opposite to the inner surface, and both sides connecting the inner surface and the outer surface, and both sides of each of the two magnets are disposed on the first surface side of the first camera module. It includes a first surface and a second surface disposed opposite to the first surface, and each of the two magnets includes a first groove disposed at a first corner connecting the first surface and the inner surface, and the second magnet. It may include a second groove disposed at a second corner connecting the surface and the inner surface, and the length of the first groove from the first surface may be smaller than the length of the second groove from the second surface.

The length of the first groove portion from the first surface may be the horizontal length of the magnet, and the length of the second groove portion from the second surface may be the horizontal length of the magnet.

The center of the outer surface of each of the two magnets may be deviated from the center of the first camera module to the side opposite to the second camera module in the horizontal direction.

The first groove portion and the second groove portion may include a curved surface that is concave.

The length from the inner surface of the first groove may be equal to or smaller than the length from the inner surface of the second groove.

The first groove and the second groove formed in each of the two magnets may be symmetrical to each other based on a virtual plane that includes an optical axis and is parallel to the inner surface of the magnet.

The cover includes a first side disposed on a first side of the first camera module, a second side disposed on an opposite side of the first side, and a third side disposed on opposite sides between the first side and the second side. It includes a side portion and a fourth side portion, and the two magnets are disposed on the third side portion and the fourth side portion, respectively, and the magnets may be disposed to be biased toward the second side portion rather than the first side portion.

The length from the inner surface of the first groove may be the length in the vertical direction of the magnet, and the length from the inner surface of the second groove may be the length in the vertical direction of the magnet.

The second camera module includes a cover; a housing disposed inside the cover; A bobbin disposed inside the housing of the second camera module; a base disposed below the housing of the second camera module; A magnet disposed in the housing of the second camera module; a first coil disposed on the outer peripheral surface of the bobbin of the second camera module and facing the magnet of the second camera module; and a second coil disposed between the housing of the second camera module and the base of the second camera module and facing the magnet of the second camera module, wherein the magnet of the second camera module includes four magnets. and may be placed at a corner of the housing of the second camera module.

A lens driving device according to this embodiment includes a cover including a first side and a second side disposed opposite to the first side; a bobbin disposed inside the cover; a coil disposed on the bobbin; and two magnets disposed on a side of the cover to face the coil and facing each other, wherein each of the two magnets has an upper surface, a lower surface, an inner surface facing the coil, and an outer surface disposed opposite to the inner surface, and both sides connecting the inner surface and the outer surface, wherein both sides of each of the two magnets include a first surface disposed on the first side of the cover and a second surface disposed opposite to the first surface. Each of the two magnets includes a first groove portion disposed at a first corner connecting the first surface and the inner surface, and a second groove portion disposed at a second corner connecting the second surface and the inner surface. Including, the center of the outer surface of each of the two magnets may be disposed to be biased toward the second side of the cover rather than the first side of the cover.

Through this embodiment, magnetic field interference between dual camera modules can be minimized. Through this, the x-axis/y-axis direction distortion of the OIS actuator can be minimized.

Additionally, through this embodiment, the electromagnetic force deviation generated inside the lens driving device can be minimized.

1 is a perspective view of a dual camera module according to this embodiment.
Figure 2 is a perspective view of a lens module coupled to the first lens driving device according to this embodiment.
Figure 3 is an exploded perspective view of the first lens driving device according to this embodiment.
Figure 4 is a cross-sectional view viewed from XY of Figure 2.
Figure 5 is a perspective view showing a magnet of the first lens driving device according to this embodiment.
Figure 6 is a conceptual diagram showing a magnet of the first lens driving device and a magnet of the second lens driving device according to this embodiment.
Figure 7 is a conceptual diagram showing a magnet and related configuration of the first lens driving device according to this embodiment.
Figure 8 is a perspective view showing the housing of the first lens driving device according to this embodiment.
Figure 9 is a side view showing the housing of the first lens driving device according to this embodiment.
Figure 10 is an exploded perspective view of the second lens driving device according to this embodiment.
Figure 11 is an exploded perspective view showing the AF mover of the second lens driving device according to this embodiment.
Figure 12 is an exploded perspective view showing the OIS mover of the second lens driving device according to this embodiment.
Figure 13 is an exploded perspective view showing the substrate and circuit members of the second lens driving device according to this embodiment.
Figure 14 is an exploded perspective view showing the elastic member of the second lens driving device according to this embodiment.
FIG. 15 is a conceptual diagram illustrating another embodiment of FIG. 6.
Figure 16 (b) is a conceptual diagram showing the magnet and related configuration of the first lens driving device according to this embodiment, and Figures 16 (a) and (c) are the state of dividing the magnet shown in (b). This is a conceptual diagram shown as .
Figure 17 is a diagram showing simulation results of a dual camera module according to a comparative example.
Figure 18 is a diagram showing simulation results of a dual camera module according to this embodiment.

Hereinafter, some embodiments of the present invention will be described through exemplary drawings. When assigning reference numerals to components in each drawing, identical components are indicated with the same reference numerals as much as possible, even if they are shown in different drawings.

Additionally, when describing the components of an embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, or order of the component is not limited by the term. When a component is described as being 'connected', 'coupled' or 'connected' to another component, that component may be directly connected, coupled or connected to that other component, but that component and that other component It should be understood that another component may be 'connected', 'combined', or 'connected' between elements.

The 'optical axis direction' used below is defined as the optical axis direction of the lens module when coupled to the lens driving device. Meanwhile, 'optical axis direction' can be used interchangeably with 'up/down direction', 'z-axis direction', etc.

The 'auto focus function' used below automatically focuses on the subject by adjusting the distance to the image sensor by moving the lens module in the optical axis direction according to the distance to the subject so that a clear image of the subject can be obtained on the image sensor. It is defined as a matching function. Meanwhile, 'Auto Focus' can be used interchangeably with 'AF (Auto Focus)'.

The 'image shake correction function' used below is defined as a function that moves or tilts the lens module in a direction perpendicular to the optical axis to offset vibration (movement) generated in the image sensor by external force. Meanwhile, 'image stabilization' can be used interchangeably with 'OIS (Optical Image Stabilization)'.

Below, the configuration of the optical device according to this embodiment will be described.

Optical devices include any of mobile phones, mobile phones, smart phones, portable smart devices, digital cameras, laptop computers, digital broadcasting terminals, PDAs (Personal Digital Assistants), PMPs (Portable Multimedia Players), and navigation devices. It can be. However, the type of optical device is not limited to this, and any device for taking videos or photos may be called an optical device.

The optical device may include a main body (not shown), a dual camera module, and a display unit (not shown). However, in the optical device, one or more of the main body, dual camera module, and display unit may be omitted or changed.

The body can form the appearance of the optical device. As an example, the main body may include a rectangular parallelepiped shape. As another example, the main body may be formed to be rounded at least in part. The main body can accommodate a dual camera module. A display unit may be disposed on one side of the main body. For example, a display unit and a dual camera module may be disposed on one side of the main body, and a dual camera module may be additionally disposed on the other side of the main body (a side located opposite the one side).

The dual camera module can be placed in the main body. The dual camera module can be placed on one side of the main body. At least part of the dual camera module can be accommodated inside the main body. The dual camera module may be equipped with two camera modules. Additional camera modules may be disposed on one side of the main body and the other side of the main body, respectively. The dual camera module can capture images of subjects.

The display unit may be placed in the main body. The display unit may be placed on one side of the main body. That is, the display unit can be placed on the same side as the dual camera module. Alternatively, the display unit may be placed on the other side of the main body. The display unit may be placed on a side of the main body opposite to the side where the dual camera module is placed. The display unit can output images captured by the dual camera module.

Hereinafter, the configuration of the dual camera module according to this embodiment will be described with reference to the drawings.

1 is a perspective view of a dual camera module according to this embodiment.

The dual camera module may include a first camera module and a second camera module. The first camera module may include a first lens driving device 1000. The first lens driving device 1000 may be called an 'AF Voice Coil Motor (AF VCM)' or an 'AF Actuator'. The second camera module may include a second lens driving device 2000. The second lens driving device 2000 may be called an 'OIS module (Optical Image Stabilization Module)' or an 'OIS actuator'. The dual camera module may include a first lens driving device 1000 and a second lens driving device 2000. The dual camera module may include a first camera module and a second camera module including a second side opposite to the first side of the first camera module. The first camera module and the second camera module may be arranged side by side on the printed circuit board 300.

The first camera module may include a first lens driving device 1000, a lens module 400, an infrared filter (not shown), a printed circuit board 300, an image sensor (not shown), and a control unit (not shown). there is. However, in the first camera module, one or more of the first lens driving device 1000, lens module 400, infrared filter, printed circuit board 300, image sensor, and control unit may be omitted or changed.

The lens module 400 may include at least one lens. The lens module 400 may include a lens and a lens barrel. The lens module 400 may include one or more lenses (not shown) and a lens barrel that accommodates the lenses. However, the configuration of the lens module 400 is not limited to the lens barrel, and any holder structure capable of supporting one or more lenses is possible. The lens module 400 may be coupled to the inside of the first lens driving device 1000. The lens module 400 may be coupled to the bobbin 1210 of the first lens driving device 1000. The lens module 400 can move integrally with the bobbin 1210. The lens module 400 may be coupled to the bobbin 1210 using an adhesive (not shown). For example, the lens module 400 may be screwed to the bobbin 1210. Meanwhile, light passing through the lens module 400 may be irradiated to the image sensor.

An infrared filter can block light in the infrared region from entering the image sensor. An infrared filter may be placed between the lens module 400 and the image sensor. For example, the infrared filter may be placed on the holder member 100 that is provided separately from the base 1400. As another example, an infrared filter may be mounted in the through hole 1410 of the base 1400. The infrared filter may be made of film or glass. An infrared filter may be formed by coating an infrared blocking coating material on a flat optical filter, such as a cover glass for protecting an imaging surface. For example, the infrared filter may be an infrared absorption filter (blue filter) that absorbs infrared rays. As another example, the infrared filter may be an infrared reflection filter (IR cut filter) that reflects infrared rays.

The first lens driving device 1000 may be disposed on the printed circuit board 300. The printed circuit board 300 may be disposed below the first lens driving device 1000. The printed circuit board 300 may be combined with the first lens driving device 1000. An image sensor may be placed on the printed circuit board 300. The printed circuit board 300 may be electrically connected to the image sensor. For example, the holder member 100 may be disposed between the printed circuit board 300 and the first lens driving device 1000. At this time, the holder member 100 may accommodate an image sensor inside. As another example, the first lens driving device 1000 may be placed directly on the printed circuit board 300. At this time, the first lens driving device 1000 may accommodate an image sensor inside. Through this structure, light passing through the lens module 400 coupled to the first lens driving device 1000 can be irradiated to the image sensor disposed on the printed circuit board 300. The printed circuit board 300 can supply power (current) to the first lens driving device 1000. Meanwhile, a control unit for controlling the first lens driving device 1000 may be disposed on the printed circuit board 300.

The image sensor may be placed on the printed circuit board 300. The image sensor may be electrically connected to the printed circuit board 300. For example, the image sensor may be coupled to the printed circuit board 300 using surface mounting technology (SMT). As another example, the image sensor may be coupled to the printed circuit board 300 using flip chip technology. The image sensor may be arranged so that its optical axis coincides with the lens module 400. That is, the optical axis of the image sensor and the optical axis of the lens module 400 may be aligned. Through this, the image sensor can acquire light that has passed through the lens module 400. The image sensor can convert light irradiated to the effective image area of the image sensor into an electrical signal. The image sensor may be one of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID. However, the type of image sensor is not limited to this, and the image sensor may include any configuration that can convert incident light into an electrical signal.

The control unit may be placed on the printed circuit board 300. For example, the control unit may be placed inside the first lens driving device 1000. As another example, the control unit may be located outside the first lens driving device 1000. The control unit may individually control the direction, intensity, and amplitude of the current supplied to the coil 1220 of the first lens driving device 1000. The control unit may control the first lens driving device 1000 to perform an autofocus function of the camera module. That is, the control unit can control the first lens driving device 1000 to move the lens module 400 in the optical axis direction, or to move or tilt the lens module 400 in a direction perpendicular to the optical axis direction. Furthermore, the control unit can perform feedback control of the autofocus function. In more detail, the controller may receive the position of the bobbin 1210 or the housing 1310 detected by an AF sensor (not shown) and control the current applied to the coil 1220 to perform autofocus feedback control. Since feedback control by the mentioned control unit occurs in real time, a more precise autofocus function can be performed.

The second camera module may include a second lens driving device 2000, a lens module (not shown), an infrared filter (not shown), a printed circuit board 300, an image sensor (not shown), and a control unit (not shown). You can. However, in the second camera module, one or more of the second lens driving device 2000, lens module, infrared filter, printed circuit board 300, image sensor, and control unit may be omitted or changed.

The lens module may include at least one lens. The lens module may include a lens and a lens barrel. The lens module may include one or more lenses (not shown) and a lens barrel that accommodates the lenses. However, the configuration of the lens module is not limited to the lens barrel, and any holder structure that can support one or more lenses is possible. The lens module may be coupled to the inside of the second lens driving device 2000. The lens module may be coupled to the bobbin 2210 of the second lens driving device 2000. The lens module can be moved integrally with the bobbin 2210. The lens module may be coupled to the bobbin 2210 and an adhesive (not shown). As an example, the lens module may be screwed to the bobbin 2210. Meanwhile, light passing through the lens module may be irradiated to the image sensor.

An infrared filter can block light in the infrared region from entering the image sensor. An infrared filter may be placed between the lens module and the image sensor. For example, the infrared filter may be placed on the holder member 200 that is provided separately from the base 2430. As another example, an infrared filter may be mounted in the through hole 2431 of the base 2430. The infrared filter may be made of film or glass. The infrared filter may be formed by coating an infrared blocking coating material on a flat optical filter, such as a cover glass for protecting the imaging surface. For example, the infrared filter may be an infrared absorption filter (blue filter) that absorbs infrared rays. As another example, the infrared filter may be an infrared reflection filter (IR cut filter) that reflects infrared rays.

A second lens driving device 2000 may be disposed on the printed circuit board 300. The printed circuit board 300 may be disposed below the second lens driving device 2000. The printed circuit board 300 may be combined with the second lens driving device 2000. An image sensor may be placed on the printed circuit board 300. The printed circuit board 300 may be electrically connected to the image sensor. For example, the holder member 200 may be disposed between the printed circuit board 300 and the second lens driving device 2000. At this time, the holder member 200 may accommodate an image sensor inside. As another example, the second lens driving device 2000 may be placed directly on the printed circuit board 300. At this time, the second lens driving device 2000 may accommodate an image sensor inside. Through this structure, light passing through the lens module coupled to the second lens driving device 2000 can be irradiated to the image sensor disposed on the printed circuit board 300. The printed circuit board 300 can supply power (current) to the second lens driving device 2000. Meanwhile, a control unit for controlling the second lens driving device 2000 may be disposed on the printed circuit board 300.

The image sensor may be placed on the printed circuit board 300. The image sensor may be electrically connected to the printed circuit board 300. For example, the image sensor may be coupled to the printed circuit board 300 using surface mounting technology (SMT). As another example, the image sensor may be coupled to the printed circuit board 300 using flip chip technology. The image sensor may be arranged so that its optical axis coincides with the lens module. That is, the optical axis of the image sensor and the optical axis of the lens module may be aligned. Through this, the image sensor can acquire light that has passed through the lens module. The image sensor can convert light irradiated to the effective image area of the image sensor into an electrical signal. The image sensor may be one of a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD, and a CID. However, the type of image sensor is not limited to this, and the image sensor may include any configuration that can convert incident light into an electrical signal.

The control unit may be placed on the printed circuit board 300. For example, the control unit may be disposed inside the second lens driving device 2000. As another example, the control unit may be located outside the second lens driving device 2000. The control unit may individually control the direction, intensity, and amplitude of the current supplied to the first coil 2220 and the second coil 2422 of the second lens driving device 2000. The control unit may control the second lens driving device 2000 to perform one or more of the autofocus function and the camera shake correction function of the camera module. That is, the control unit can control the second lens driving device 2000 to move the lens module in the optical axis direction, or to move or tilt the lens module in a direction perpendicular to the optical axis direction. Furthermore, the control unit may perform one or more of feedback control of the autofocus function and feedback control of the hand shake correction function. In more detail, the control unit may perform autofocus feedback control by receiving the position of the bobbin 2210 or housing 2310 detected by an AF sensor (not shown) and controlling the current applied to the first coil 2220. there is. Additionally, the control unit may receive the position of the bobbin 2210 or the housing 2310 detected by the Hall sensor 2700 and control the current applied to the second coil 2422 to perform handshake correction feedback control. Since the feedback control by the mentioned control unit occurs in real time, a more precise autofocus function and camera shake correction function can be performed.

Hereinafter, the configuration of the first lens driving device according to this embodiment will be described with reference to the drawings.

FIG. 2 is a perspective view of a state in which a lens module is coupled to a first lens driving device according to this embodiment, FIG. 3 is an exploded perspective view of the first lens driving device according to this embodiment, and FIG. 4 is an X-Y view of FIG. 2. It is a cross-sectional view, and Figure 5 is a perspective view showing the magnet of the first lens driving device according to this embodiment, and Figure 6 shows the magnet of the first lens driving device and the magnet of the second lens driving device according to this embodiment. 7 is a conceptual diagram showing a magnet and related configuration of the first lens driving device according to this embodiment, and FIG. 8 is a perspective view showing the housing of the first lens driving device according to this embodiment, and FIG. 9 is a side view showing the housing of the first lens driving device according to this embodiment, FIG. 15 is a conceptual diagram showing another embodiment of FIG. 6, and FIG. 16(b) is a first lens according to this embodiment. It is a conceptual diagram showing the magnet and related configuration of the driving device. Figures 16 (a) and (c) are conceptual diagrams showing the magnet shown in (b) in a divided state, and Figure 17 is a dual camera according to a comparative example. This is a diagram showing the simulation results of the module, and FIG. 18 is a diagram showing the simulation results of the dual camera module according to this embodiment.

For reference, FIG. 1 shows the first lens driving device 1000 shown in FIG. 2 rotated by 180°. That is, the terminal portion 1524 of the first lens driving device 1000 is not shown in FIG. 1 because it is disposed behind the first lens driving device 1000.

The first lens driving device 1000 may be an AF module. At this time, the second lens driving device 2000 may be an OIS module. Here, the OIS module can also perform the AF function. However, the first lens driving device 1000 may be an OIS module. At this time, the second lens driving device 2000 may be an AF module. That is, one of the first lens driving device 1000 and the second lens driving device 2000 has an AF module and the other has an OIS module. Alternatively, both the first lens driving device 1000 and the second lens driving device 2000 may be AF modules. Alternatively, both the first lens driving device 1000 and the second lens driving device 2000 may be OIS modules.

The first lens driving device 1000 may include a cover 1100, a mover 1200, a stator 1300, a base 1400, and an AF elastic member 1500. However, in the first lens driving device 1000, one or more of the cover 1100, mover 1200, stator 1300, base 1400, and AF elastic member 1500 may be omitted or changed.

The cover 1100 may be formed as a separate member from the housing 1310. The cover 1100 may be formed of a material different from the housing 1310. The cover 1100 may be formed integrally with the housing 1310. Alternatively, the cover 1100 may be omitted and the housing 1310 may function as the cover 1100. That is, the cover 1100 may be the housing 1310.

The cover 1100 may form the exterior of the first lens driving device 1000. The cover 1100 may have a hexahedral shape with an open bottom. However, it is not limited to this. Cover 1100 may be non-magnetic. If the cover 1100 is made of a magnetic material, the magnetic force of the cover 1100 may affect the magnet 2320 of the second lens driving device 2000. Cover 1100 may be formed of a metal material. In more detail, the cover 1100 may be made of a metal plate. In this case, the cover 1100 can block electromagnetic interference (EMI). Because of these features of the cover 1100, the cover 1100 may be referred to as an 'EMI shield can'. The cover 1100 may be connected to the ground portion of the printed circuit board 300. Through this, the cover 1100 can be grounded. The cover 1100 may block radio waves generated outside the first lens driving device 1000 from flowing into the inside of the cover 1100. Additionally, the cover 1100 may block radio waves generated inside the cover 1100 from being emitted to the outside of the cover 1100. However, the material of the cover 1100 is not limited to this.

The cover 1100 may include a top plate 1101 and a side plate 1102. The cover 1100 may include a top plate 1101 and a side plate 1102 extending downward from the outside of the top plate 1101. The lower end of the side plate 1102 of the cover 1100 may be mounted on the base 1400. The lower end of the side plate 1102 of the cover 1100 may be coupled to the stepped portion 1430 of the base 1400. The cover 1100 may be mounted on the base 1400 with its inner surface in close contact with part or all of the side surface of the base 1400. A mover 1200, a stator 1300, and an AF elastic member 1500 may be located in the internal space formed by the cover 1100 and the base 1400. Through this structure, the cover 1100 can protect internal components from external impact and simultaneously prevent penetration of external contaminants. However, it is not limited to this, and the lower end of the side plate 1102 of the cover 1100 may be directly coupled to the printed circuit board 300 located below the base 1400. Some of the plurality of side plates 1102 may face the cover 2100 of the second lens driving device 2000.

Cover 1100 may include an opening 1110. The opening 1110 may be formed in the upper plate 1101. The opening 1110 may expose the lens module 400. The opening 1110 may be provided in a shape corresponding to the lens module 400. The size of the opening 1110 may be larger than the diameter of the lens module 400 so that the lens module 400 can be assembled through the opening 1110. Meanwhile, light introduced through the opening 1110 may pass through the lens module 400. At this time, the light passing through the lens module 400 may be acquired as an image by the first image sensor.

The mover 1200 may be coupled with the lens module 400. The mover 1200 can accommodate the lens module 400 inside. The outer circumferential surface of the lens module 400 may be coupled to the inner circumferential surface of the mover 1200. The mover 1200 can move integrally with the lens module 400 through interaction with the stator 1300.

The mover 1200 may include a bobbin 1210 and a coil 1220. However, in the mover 1200, one or more of the bobbin 1210 and the coil 1220 may be omitted or changed.

The bobbin 1210 may be located inside the housing 1310. The bobbin 1210 may be accommodated in the through hole 1311 of the housing 1310. The bobbin 1210 may be combined with the lens module 400. In more detail, the outer peripheral surface of the lens module 400 may be coupled to the inner peripheral surface of the bobbin 1210. A coil 1220 may be coupled to the bobbin 1210. The lower part of the bobbin 1210 may be coupled to the lower elastic member 1520. The upper part of the bobbin 1210 may be coupled to the upper elastic member 1510. The bobbin 1210 may move in the optical axis direction with respect to the housing 1310.

The bobbin 1210 may include a through hole 1211, a coil coupling portion 1212, an upper coupling portion 1213, and a lower coupling portion (not shown). However, in the bobbin 1210, one or more of the through hole 1211, coil coupling portion 1212, upper coupling portion 1213, and lower coupling portion may be omitted or changed.

The through hole 1211 may be formed inside the bobbin 1210. The through hole 1211 may be formed as open top and bottom. A lens module 400 may be coupled to the through hole 1211. A screw thread having a shape corresponding to a screw thread formed on the outer circumferential surface of the lens module 400 may be formed on the inner peripheral surface of the through hole 1211. That is, the through hole 1211 may be screwed to the lens module 400. An adhesive may be interposed between the lens module 400 and the bobbin 1210. At this time, the adhesive may be an epoxy that is cured by ultraviolet rays (UV), heat, or laser. That is, the lens module 400 and the bobbin 1210 may be bonded using ultraviolet curing epoxy and/or thermal curing epoxy.

The coil coupling portion 1212 may accommodate at least a portion of the coil 1220. The coil coupling portion 1212 may be formed integrally with the outer surface of the bobbin 1210. Additionally, the coil coupling portion 1212 may be formed continuously along the outer surface of the bobbin 1210 or may be formed spaced apart at predetermined intervals. As an example, the coil coupling portion 1212 may be formed by recessing a portion of the outer surface of the bobbin 1210 to correspond to the shape of the coil 1220. At this time, the coil 1220 may be serially wound around the coil coupling portion 1212. As a variation, the coil coupling portion 1212 may be formed to be open at the top or bottom. At this time, the coil 1220 may be inserted and coupled to the coil coupling portion 1212 through the open portion in a pre-wound state.

The upper coupling portion 1213 may be coupled to the upper elastic member 1510. The upper coupling portion 1213 may be coupled to the inner portion 1512 of the upper elastic member 1510. The upper coupling portion 1213 may protrude upward from the upper surface of the bobbin 1210. For example, the protrusion of the upper coupling portion 1213 may be inserted into and coupled to a groove or hole of the inner portion 1512 of the upper elastic member 1510. At this time, the protrusion of the upper coupling part 1213 is heat-sealed while inserted into the hole of the inner part 1512, and the upper elastic member 1510 can be fixed between the heat-sealed protrusion and the upper surface of the bobbin 1210.

The lower coupling portion may be coupled to the lower elastic member 1520. The lower coupling portion may be coupled to the inner portion 1522 of the lower elastic member 1520. The lower coupling portion may protrude downward from the lower surface of the bobbin 1210. For example, the protrusion of the lower coupling portion may be inserted into and coupled to a groove or hole of the inner portion 1522 of the lower elastic member 1520. At this time, the protrusion of the lower coupling part is heat-sealed while inserted into the hole of the inner part 1522, and the lower elastic member 1520 can be fixed between the heat-sealed protrusion and the lower surface of the bobbin 1210.

Coil 1220 may be located on bobbin 1210. The coil 1220 may be disposed on the outer peripheral surface of the bobbin 1210. The coil 1220 may be directly wound on the outer peripheral surface of the bobbin 1210. The coil 1220 may electromagnetically interact with the magnet 1320. The coil 1220 may face the magnet 1320. In this case, when current is supplied to the coil 1220 and a magnetic field is formed around the coil 1220, the coil 1220 is connected to the magnet 1320 by electromagnetic interaction between the coil 1220 and the magnet 1320. You can move about. The coil 1220 can move for AF driving. In this case, the coil 1220 may be referred to as an 'AF coil'.

The coil 1220 may include a pair of lead wires (not shown) for power supply. A pair of lead wires of the coil 1220 may be electrically connected to the lower elastic member 1520. Each pair of lead wires of the coil 1220 may be electrically connected to the lower elastic members 1520 that are separately provided as a pair. In this case, power may be supplied to the coil 1220 through the lower elastic member 1520, which is electrically connected to the printed circuit board 300 through the terminal portion 1524.

The stator 1300 can accommodate the mover 1200 inside. The stator 1300 is a fixed member and can move the mover 1200 through electromagnetic interaction.

The stator 1300 may include a housing 1310 and a magnet 1320. However, in the stator 1300, one or more of the housing 1310 and the magnet 1320 may be omitted or changed.

The housing 1310 may be located outside the bobbin 1210. The housing 1310 may be spaced apart from the bobbin 1210. At least a portion of the housing 1310 may be formed in a shape corresponding to the inner surface of the cover 1100. In particular, the outer surface of the housing 1310 may be formed in a shape corresponding to the inner surface of the side plate 1102 of the cover 1100. As an example, the housing 1310 may have a hexahedral shape including four sides. However, the shape of the housing 1310 may be any shape that can be placed inside the cover 1100. The housing 1310 may be formed of an insulating material. The housing 1310 may be formed as an injection molded product considering productivity. Housing 1310 may be fixed on base 1400. As a variation, the housing 1310 may be omitted and the magnet 1320 may be fixed to the cover 1100. An upper elastic member 1510 may be coupled to the upper part of the housing 1310. A lower elastic member 1520 may be coupled to the lower part of the housing 1310.

The housing 1310 may include first to fourth side portions 1301, 1302, 1303, and 1304. The housing 1310 includes a first side portion 1301 disposed on the first side of the first camera module, a second side portion 1302 disposed on the opposite side of the first side portion 1301, the first side portion 1301, and the second side portion 1301. It may include a third side portion 1303 and a fourth side portion 1304 disposed on opposite sides between the side portions 1302. Two magnets 1320 may be disposed on the third side 1303 and the fourth side 1304, respectively. The first magnet 1321 may be placed on the third side 1303. The second magnet 1322 may be placed on the fourth side 1304. The two magnets 1320 may be disposed to be biased toward the second side 1302 rather than the first side 1301.

As shown in FIG. 6, the two magnets 1320 may be arranged to be deviated away from the second lens driving device 2000. Meanwhile, as shown in FIG. 8, the magnet coupling portion 1312 of the housing 1310 may be formed to be biased to one side based on the center line A of the housing 1310. The magnet coupling portion 1312 of the housing 1310 may be formed to be biased toward the second side 1302 rather than the first side 1301. Due to this structure, the magnet 1320 coupled to the magnet coupling portion 1312 can also be disposed with a bias toward the second side 1302 rather than the first side 1301. In this embodiment, the magnetic influence on the second lens driving device 2000 can be minimized by adjusting the position of the magnet 1320 of the first lens driving device 1000.

The housing 1310 may include a through hole 1311, a magnet receiving portion 1312, an upper coupling portion 1313, a lower coupling portion (not shown), a first support portion 1315, and a second support portion 1316. there is. However, in the housing 1310, any of the through hole 1311, the magnet receiving portion 1312, the upper coupling portion 1313, the lower coupling portion (not shown), the first support portion 1315, and the second support portion 1316. One or more may be omitted or changed. In particular, the first support part 1315 and the second support part 1316 may be omitted from the housing 1310.

The through hole 1311 may be formed inside the housing 1310. The through hole 1311 may be formed in the housing 1310 to be open top and bottom. A bobbin 1210 can be accommodated in the through hole 1311. A bobbin 1210 may be movably disposed in the through hole 1311. The through hole 1311 may be provided in a shape corresponding to the bobbin 1210.

The magnet coupling portion 1312 may be formed on the side of the housing 1310. The magnet coupling portion 1312 may be formed as a hole penetrating the housing 1310. Alternatively, the magnet coupling portion 1312 may be formed as a groove formed by recessing a portion of the housing 1310. The magnet coupling portion 1312 may accommodate at least a portion of the magnet 1320. An adhesive (not shown) may be placed between the magnet coupling portion 1312 and the magnet 1320. That is, the magnet coupling portion 1312 and the magnet 1320 may be coupled with an adhesive. The magnet coupling portion 1312 may be located on the inner surface of the housing 1310. The magnet coupling portion 1312 may be formed by partially recessing the inner surface of the housing 1310 to the outside. In this case, there is an advantage in electromagnetic interaction with the coil 1220 located inside the magnet 1320.

The magnet coupling portion 1312 may include a first magnet coupling portion 1312a and a second magnet coupling portion 1312b. The first magnet 1321 may be coupled to the first magnet coupling portion 1312a. The first magnet coupling portion 1312a may be formed on the third side 1303 of the housing 1310. The second magnet 1322 may be coupled to the second magnet coupling portion 1312b. The second magnet coupling portion 1312b may be formed on the fourth side 1304 of the housing 1310.

The upper coupling portion 1313 may be coupled to the upper elastic member 1510. The upper coupling portion 1313 may be coupled to the outer portion 1511 of the upper elastic member 1510. The upper coupling portion 1313 may protrude upward from the upper surface of the housing 1310. For example, the protrusion of the upper coupling portion 1313 may be inserted into and coupled to a groove or hole of the outer portion 1511 of the upper elastic member 1510. At this time, the protrusion of the upper coupling portion 1313 is heat-sealed while inserted into the hole of the outer portion 1511, and the upper elastic member 1510 can be fixed between the heat-sealed protrusion and the upper surface of the housing 1310.

The lower coupling portion may be coupled to the lower elastic member 1520. The lower coupling portion may be coupled to the outer portion 1521 of the lower elastic member 1520. The lower coupling portion may protrude downward from the lower surface of the housing 1310. For example, the protrusion of the lower coupling portion may be inserted into and coupled to a groove or hole of the outer portion 1521 of the lower elastic member 1520. At this time, the protrusion of the lower coupling part is heat-sealed while inserted into the hole of the outer portion 1521, and the lower elastic member 1520 can be fixed between the heat-sealed protrusion and the lower surface of the housing 1310.

The first support portion 1315 may be formed in a shape corresponding to the first groove portion 1330. The first support portion 1315 may protrude from the housing 310. The first support portion 1315 may extend in the vertical direction. The first support portion 1315 may support the depressed surface, which is the depressed surface of the first groove portion 1330. The first support portion 1315 may be in surface contact with the recessed surface of the first groove portion 1330. The first support portion 1315 may support the magnet 1320 from the inside. The first support portion 1315 supports the magnet 1320 and can prevent the magnet 1320 from falling off from the housing 1310.

The second support portion 1316 may be formed in a shape corresponding to the second groove portion 1340. The second support portion 1316 may protrude from the housing 310. The second support portion 1316 may extend in the vertical direction. The second support portion 1316 may support the depressed surface, which is the depressed surface of the second groove portion 1340. The second support portion 1316 may be in surface contact with the recessed surface of the second groove portion 1340. The second support portion 1316 may support the magnet 1320 from the inside. The second support portion 1316 supports the magnet 1320 and can prevent the magnet 1320 from falling off from the housing 1310. The width of the second support portion 1316 may be longer than the width of the first support portion 1315.

The magnet 1320 may be placed in the housing 1310. The magnet 1320 may be accommodated in the magnet coupling portion 1312 of the housing 1310. The magnet 1320 may electromagnetically interact with the coil 1220. The magnet 1320 may face the coil 1220. The magnet 1320 can move the bobbin 1210 to which the coil 1220 is fixed. The magnet 1320 can move the coil 1220 for AF driving. In this case, the magnet 1320 may be referred to as an 'AF driving magnet'.

The magnet 1320 may include first and second magnets 1321 and 1322. The magnet 1320 may include first and second magnets 1321 and 1322 that are spaced apart from each other. The magnet 1320 may include first and second magnets 1321 and 1322 located on opposite sides of each other. The magnet 1320 may include a first magnet 1321 and a second magnet 1322 disposed on opposite sides of the housing 1310. The magnet 1320 may include a first magnet 1321 disposed on the third side 1303 and a second magnet 1322 disposed on the fourth side 1304.

In this embodiment, the magnet 1320 may be arranged to face the coil 1220 on the side of the housing 310 in a direction perpendicular to the first side of the first camera module. At this time, the magnet 1320 may include first and second magnets 1321 and 1322 facing each other. The first and second magnets 1321 and 1322 each have an upper surface 1323, a lower surface, an inner surface 1324 facing the coil 1220, an outer surface 1325 disposed on the opposite side of the inner surface 1324, and an inner surface ( 1324) and both sides 1326 and 1327 connecting the outer surface 1325.

The magnet 1320 has first and second corners of the magnet 1320 where both sides 1326 and 1327 of the magnet 1320 and the inner surface 1324 of the magnet 1320 meet. It may include grooves 1330 and 1340 formed by being depressed more than the third and fourth corner portions of the magnet 1320 where 1327 and the outer surface 1325 of the magnet 1320 meet. Through this, since part of the inner surface 1324 of the magnet 1320 is omitted, the area of the inner surface 1324 of the magnet 1320 may be smaller than the area of the outer surface 1325 of the magnet 1320.

Both sides 1326 and 1327 of the magnet 1320 have a first side 1326 closer to the first side of the first camera module and a second side 1327 disposed on the opposite side of the first side 1326. It can be included.

The grooves 1330 and 1340 are the first groove 1330 disposed in the first corner where the first side 1326 and the inner surface 1324 meet, and the second side 1327 and the inner surface 1324 meet. It may include a second groove portion 1340 disposed at the second corner portion. The first length (see H1 in FIG. 7), which is the horizontal length in the first groove 1330 where the first side 1326 is omitted, is the horizontal direction in the second groove 1340 where the second side 1327 is omitted. It can correspond to the second length (see H2 in FIG. 7), which is the length of . The first length, which is the horizontal length where the first side 1326 is omitted from the first groove 1330, is the second length which is the horizontal length where the second side 1327 is omitted from the second groove 1340, and It can be the same. The first length, which is the horizontal length where the first side 1326 is omitted from the first groove 1330, is the second length which is the horizontal length where the second side 1327 is omitted from the second groove 1340, and may be different. The third length (see W1 in FIG. 7), which is the horizontal length in the first groove 1330 with the inner surface 1324 omitted, is the horizontal length in the second groove 1340 with the inner surface 1324 omitted. It may be shorter than 4 length (see W2 in FIG. 7). However, as a modified example, the third length is the horizontal length in the first groove 1330 with the inner surface 1324 omitted, and the fourth length is the horizontal length in the second groove 1340 with the inner surface 1324 omitted. It may be the same as Or, as another modified example, the third length, which is the horizontal length with the inner surface 1324 omitted from the first groove 1330, is the fourth length, which is the horizontal length with the inner surface 1324 omitted from the second groove 1340. It can be longer than the length.

A portion of one side 1326 of the magnet 1320 is depressed on one side 1326 of the magnet 1320 disposed on the first side of the first camera module among the two sides 1326 and 1327 of the magnet 1320. A first groove 1330 may be provided. That is, a first groove 1330 may be provided at a portion where the first side 1326 and the inner surface 1324 of the magnet 1320 meet. A part of one side 1327 of the magnet 1320 is on one side 1327 of the magnet 1320 disposed on the opposite side of the first side of the first camera module among the two sides 1326 and 1327 of the magnet 1320. A second groove 1340 formed by being depressed may be provided. That is, a second groove 1340 may be provided at a portion where the second side 1327 and the inner surface 1324 of the magnet 1320 meet.

The magnet 1320 may include four corner portions at a portion where the inner surface 1324 and both sides 1326 and 1327 meet, and where the outer surface 1325 and both sides 1326 and 1327 meet. Grooves 1330 and 1340 may be formed in only two of the four corners of the magnet 1320. That is, the shape of two of the four corner parts of the magnet 1320 may be different from the shape of the remaining two corner parts. At this time, basic curvature generated during corner processing may exist in the remaining two corners of the magnet 1320. The curvature of the grooves 1330 and 1340 may be different from the basic curvature generated during edge processing. The shapes of the first and second corners of the magnet 1320 may be different from the shapes of the third and fourth corners of the magnet 1320. For example, the basic curvature may be convex, but the grooves 1330 and 1340 may be concave.

The dual camera module according to this embodiment may include a first groove 1330 formed in the magnet 1320. In this embodiment, the magnetic influence of the magnet 1320 of the first camera module on the second camera module can be minimized through the first groove 1330. The first groove 1330 according to this embodiment can be distinguished from the natural curvature generated at the corner during the manufacturing process of the magnet 1320 in terms of shape, size, and function. In this embodiment, the shape of the magnet 1320 of the first lens driving device 1000 on the side close to the second lens driving device 2000 is called 'R cut', 'C cut', 'ㄱ cut' or 'ㄴ cut'. It can be processed. Alternatively, in this embodiment, the shape of the magnet 1320 of the first lens driving device 1000 on the side closer to the second lens driving device 2000 may be cut to be round.

In this embodiment, the magnetic influence on the second lens driving device 2000 can be minimized by adjusting the position of the magnet 1320 of the first lens driving device 1000. In more detail, the magnet coupling portion 1312 of the housing 1310 of the first lens driving device 1000 may be deviated to one side from the center line. That is, the magnet 1320 may be biased to one side based on the center of the coil 1220 (see C in FIG. 7). In more detail, the two magnets 1320 may be disposed 0.10 to 0.22 mm toward the second side 1302 rather than the first side 1301. The two magnets 1320 may be disposed with a bias of 0.14 to 0.18 mm toward the second side 1302 rather than the first side 1301. The two magnets 1320 may be disposed with a bias of 0.16 mm toward the second side 1302 rather than the first side 1301.

The dual camera module according to this embodiment may include a second groove 1340 formed in the magnet 1320. In this embodiment, when the magnet 1320 is provided with only the first groove 1330 without the second groove 1340, an imbalance in the magnetic force of the magnet 1320 may occur due to bias of the magnet 1320 relative to the center of the coil 1220. there is. This may be a problem because it becomes a factor causing tilt of the first lens driving device 1000. More specifically, in this embodiment, when the magnet 1320 is provided with only the first groove 1330 without the second groove 1340, the first groove (see C in FIG. 7) is centered on the center of the coil 1220. The split magnet on the side where 1330) is formed (see 1320a in FIG. 16) has a magnetic force of 0.00090476 (N), and the split magnet on the opposite side has a magnetic force of 0.0010575 (N), so that the left and right deviation electromagnetic force can be 14.5%. In this embodiment, a structure may be included in which the left and right electromagnetic force deviation is set to 0 by adding a chamfer shape to a place where the magnetic force of the magnet 1320 is strong based on the center of the coil 1220. The chamfered shape may be referred to as a second groove portion 1340. That is, in this embodiment, the deviation of the magnetic force of the magnet 1320 can be removed or minimized through the second groove 1340. In more detail, according to the application of the second groove 1340, the split magnet on the side where the second groove 1340 is formed based on the center of the coil 1220 (see 1320b in FIG. 16) has a magnetic force of 0.0009066 (N). As a result, the left and right deviation electromagnetic force can be close to 0. For reference, A shown in FIGS. 7 and 16 is a schematic diagram of the second lens driving device 2000, and B shown in FIGS. 7 and 16 is a diagram showing the terminal portion 1524 of the lower elastic member 1520. It is a diagram showing the direction (pin direction, terminal direction). That is, the second magnet 1322 may be disposed on the terminal portion 1524 side of the lower elastic member 1520. In this embodiment, the second groove 1340 may also be processed into an 'R cut', 'C cut', 'ㄱ cut', or 'ㄴ cut'. Alternatively, the second groove 1340 may also be cut to be round.

In this embodiment, the left and right electromagnetic force deviation of the magnet 1320 is minimized through the second groove 1340, so the occurrence of tilt can also be minimized. The embodiment shown in FIG. 17 is a comparative example without the second groove 1340, and the embodiment shown in FIG. 18 is the present embodiment including the second groove 1340. Comparing Figures 17 and 18, it can be seen that tilt is reduced through the second groove 1340.

In this embodiment, the length W1 from the first side 1326 of the first groove 1330 may be smaller than the length W2 from the second side 1327 of the second groove 1340. At this time, the length W1 from the first side 1326 of the first groove 1330 may be the length of the magnet 1320 in the horizontal direction. Additionally, the length W2 from the second side 1327 of the second groove 1340 may be the length of the magnet 1320 in the horizontal direction. The center of the outer surface 1325 of each of the two magnets 1321 and 1322 may be deviated from the center of the first camera module to the side opposite to the second camera module in the horizontal direction of the magnet 1320. The length H1 from the inner surface 1324 of the first groove 1330 may be equal to the length H2 from the inner surface 1324 of the second groove 1340. The length from the inner surface 1324 of the first groove 1330 may be smaller than the length from the inner surface 1324 of the second groove 1340. The length from the inner surface 1324 of the first groove 1330 may be greater than the length from the inner surface 1324 of the second groove 1340. The length H1 from the inner surface 1324 of the first groove 1330 may be the length of the magnet 1320 in the vertical direction. The length H2 from the inner surface 1324 of the second groove 1340 may be the length of the magnet 1320 in the vertical direction.

Groove portions 1330 and 1340 may be formed in the magnet 1320. The groove portions 1330 and 1340 may have a form in which a portion of the magnet 1320 is omitted. The grooves 1330 and 1340 may be formed by chamfering. In this case, the groove portions 1330 and 1340 may be referred to as ‘chamfer portions’. The grooves 1330 and 1340 may have a shape in which a portion of the inner surface 1324 of the magnet 1320 is recessed. The grooves 1330 and 1340 may have a shape in which some of the both side surfaces 1326 and 1327 of the magnet 1320 are recessed. The first groove 1330 may be formed at a portion where the first side 1326 and the inner surface 1324 of the magnet 1320 meet. The second groove 1340 may be formed at a portion where the second side 1327 and the inner surface 1324 of the magnet 1320 meet. As a modified example, the grooves 1330 and 1340 may have a shape in which a portion of the outer surface 1325 of the magnet 1320 is recessed.

The first groove 1330 may extend from the top to the bottom of the magnet 1320. The first groove 1330 may extend in a certain shape from the upper surface 1323 to the lower surface of the magnet 1320. As a modified example, the first groove portion 1330 may be formed as a plurality of grooves spaced apart from each other. In another modification, the first groove 1330 may be formed of a plurality of through holes spaced apart from each other. That is, the first groove 1330 can be formed in any shape that can minimize the magnetic influence on the second camera module.

The first groove 1330 may include a curved surface that is concave. As a modified example, the first groove portion 1330 may include a round surface that is convexly formed. The first groove 1330 may be formed as a curved surface. Alternatively, the first groove 1330 may include an inclined surface forming an obtuse angle or a right angle with the first side 1326 of the magnet 1320. As a modified example, the first groove 1330 may include an inclined surface forming an acute angle with the first side 1326 of the magnet 1320. The first groove 1330 may connect the first side 1326 and the inner surface 1324 at an angle. The first groove 1330 may form an obtuse angle with each of the first side 1326 and the inner surface 1324. The first groove 1330 may form a right angle with one or more of the first side 1326 and the inner surface 1324. At this time, the first groove 1330 may include two or more planes, and the two or more planes may be inclined toward each other.

The first groove 1330 may be formed by recessing 10 to 80% of the area of the first side 1326 of the magnet 1320. That is, 10 to 80% of the area of the first side 1326 of the magnet 1320 may be depressed by the first groove 1330. In other words, 10 to 80% of the area of the first side 1326 of the magnet 1320 may be omitted by the first groove 1330. The horizontal width of the first groove 1330 may be 10 to 80% of the horizontal width of the first side 1326 of the magnet 1320. For example, the horizontal width of the first groove 1330 may be 43% of the horizontal width of the first side 1326 of the magnet 1320. Meanwhile, when looking at the inner surface 1324, the width of the first groove 1330 may be 100 μm or more.

The second groove 1340 may extend from the top to the bottom of the magnet 1320. The second groove 1340 may extend in a certain shape from the upper surface 1323 to the lower surface of the magnet 1320. As a modified example, the second groove portion 1340 may be formed as a plurality of grooves spaced apart from each other. In another modification, the second groove portion 1340 may be formed of a plurality of through holes spaced apart from each other. That is, the second groove 1340 can be formed in any shape that can minimize the left-right magnetic force deviation of the magnet 1320.

The second groove portion 1340 may include a curved surface that is concave. As a modified example, the second groove 1340 may include a round surface that is convexly formed. The second groove 1340 may be formed as a curved surface. Alternatively, the second groove 1340 may include an inclined surface forming an obtuse angle or a right angle with the second side surface 1327 of the magnet 1320. As a modified example, the second groove 1340 may include an inclined surface forming an acute angle with the second side 1327 of the magnet 1320. The second groove 1340 may connect the second side 1327 and the inner surface 1324 at an angle. The second groove 1340 may form an obtuse angle with each of the second side surface 1327 and the inner surface 1324. The second groove 1340 may form a right angle with one or more of the second side surface 1327 and the inner surface 1324. At this time, the second groove 1340 may include two or more planes, and the two or more planes may be inclined toward each other.

The second groove 1340 may be formed by recessing 10 to 80% of the area of the second side 1327 of the magnet 1320. That is, 10 to 80% of the area of the second side 1327 of the magnet 1320 may be depressed by the second groove 1340. In other words, 10 to 80% of the area of the second side 1327 of the magnet 1320 can be omitted by the second groove 1340. The horizontal width of the second groove 1340 may be 10 to 80% of the horizontal width of the second side 1327 of the magnet 1320. For example, the horizontal width of the second groove 1340 may be 43% of the horizontal width of the second side 1327 of the magnet 1320. Meanwhile, when looking at the inner surface 1324, the width of the second groove 1340 may be 100 μm or more.

The grooves 1330 and 1340 formed in each of the first and second magnets 1321 and 1322 may include an optical axis and be symmetrical with respect to an imaginary plane parallel to the inner surface 1324 of the magnet 1320. there is. Through this structure, AF driving generated by the interaction between the magnet 1320 and the coil 1220 in the first lens driving device 1000 can be performed normally.

In this embodiment, the housing 310 includes a first side portion 1031 disposed on the first side of the first camera module, a second side portion 1302 disposed on the opposite side of the first side portion 1301, and a first side portion 1301. ) and a third side 1303 and a fourth side 1304 disposed on opposite sides of the second side 1302. At this time, the first and second magnets 1321 and 1322 may be disposed on the third side 1303 and the fourth side 1304, respectively. That is, the first magnet 1321 may be placed on the third side 1303 and the second magnet 1322 may be placed on the fourth side 1304. In this embodiment, the first and second magnets 1321 and 1322 may be arranged to be biased toward the second side 1302 rather than the first side 1301. That is, the centers of each of the first and second magnets 1321 and 1322 may be closer to the second side 1302 than the first side 1301. Through this structure, the magnetic influence of the magnet 1320 of the first camera module on the second camera module can be minimized.

The first and second magnets 1321 and 1322 may have an asymmetric shape with respect to their respective centers. The first and second magnets 1321 and 1322 may have respective centers and have an asymmetric shape based on a virtual plane perpendicular to each inner surface 1324. That is, the first groove 1330 disposed on the first side 1326 of the first and second magnets 1321 and 1322 and the second groove 1340 disposed on the second side 1327 have different shapes and /or can have a size.

The base 1400 may be disposed on the lower side of the housing 1310. The base 1400 may be placed on the upper surface of the printed circuit board 300. An infrared filter may be coupled to the base 1400.

The base 1400 may include a through hole 1410, a terminal receiving portion 1420, and a step portion 1430. However, in the base 1400, one or more of the through hole 1410, terminal receiving portion 1420, and step portion 1430 may be omitted or changed.

The through hole 1410 may be formed in the center of the base 1400. The through hole 1410 may be formed to penetrate the base 1400 up and down. The through hole 1410 may overlap the lens module 400 in the optical axis direction. The through hole 1410 can pass light that has passed through the lens module 400.

The terminal receiving portion 1420 may be formed on the side of the base 1400. The terminal receiving portion 1420 may be formed by partially recessing the outer side of the base 1400 inward. The terminal receiving portion 1420 may accommodate at least a portion of the terminal portion 1524 of the lower elastic member 1520. The terminal receiving portion 1420 may be formed in a shape corresponding to the terminal portion 1524.

The step portion 1430 may be formed at the bottom of the outer surface of the base 1400. The step portion 1430 may be formed to protrude outward from the outer surface of the base 1400. The step portion 1430 may support the lower end of the side plate 1102 of the cover 1100.

The AF elastic member 1500 may be coupled to the bobbin 1210 and the housing 1310. The AF elastic member 1500 can elastically support the bobbin 1210. The AF elastic member 1500 may support the bobbin 1210 movably with respect to the housing 1310. At least a portion of the AF elastic member 1500 may have elasticity.

The AF elastic member 1500 may include an upper elastic member 1510 and a lower elastic member 1520. However, in the AF elastic member 1500, one or more of the upper elastic member 1510 and the lower elastic member 1520 may be omitted or changed.

The upper elastic member 1510 may be coupled to the upper part of the bobbin 1210 and the upper part of the housing 1310. The upper elastic member 1510 may be disposed on the upper side of the bobbin 1210 and coupled to the bobbin 1210 and the housing 1310. The upper elastic member 1510 may be formed integrally.

The upper elastic member 1510 may include an outer portion 1511, an inner portion 1512, and a connection portion 1513. However, in the upper elastic member 1510, one or more of the outer portion 1511, the inner portion 1512, and the connecting portion 1513 may be omitted or changed.

The outer portion 1511 may be coupled to the housing 1310. The outer portion 1511 may be coupled to the upper surface of the housing 1310. The inner portion 1512 may be coupled to the bobbin 1210. The inner portion 1512 may be coupled to the upper surface of the bobbin 1210. The connection portion 1513 may connect the outer portion 1511 and the inner portion 1512. The connection portion 1513 can elastically connect the outer portion 1511 and the inner portion 1512. The connection portion 1513 may have elasticity.

The lower elastic member 1520 may be coupled to the lower part of the bobbin 1210 and the lower part of the housing 1310. The lower elastic member 1520 may be disposed below the bobbin 1210 and coupled to the bobbin 1210 and the housing 1310. The lower elastic member 1520 may be electrically connected to the coil 1220. The lower elastic members 1520 may be provided as a pair spaced apart from each other. A pair of lower elastic members 1520 may be coupled to a pair of lead wires of the coil 1220.

The lower elastic member 1520 may include an outer portion 1521, an inner portion 1522, a connection portion 1523, and a terminal portion 1524. However, in the lower elastic member 1520, one or more of the outer part 1521, the inner part 1522, the connection part 1523, and the terminal part 1524 may be omitted or changed.

The outer portion 1521 may be coupled to the housing 1310. The outer portion 1521 may be coupled to the lower surface of the housing 1310. The outer portion 1521 may be coupled to the base 1400. The outer portion 1521 may be fixed between the housing 1310 and the base 1400. The inner portion 1522 may be coupled to the bobbin 1210. The inner portion 1522 may be coupled to the lower surface of the bobbin 1210. The connection portion 1523 may connect the outer portion 1521 and the inner portion 1522. The connection portion 1523 can elastically connect the outer portion 1521 and the inner portion 1522. The connection portion 1523 may have elasticity. The terminal portion 1524 may extend from the outer portion 1521. The terminal portion 1524 may be formed by bending from the outer portion 1521. The terminal portion 1524 may be bent and extended downward from the outer portion 1521. Alternatively, as a modified example, the terminal portion 1524 may be provided as a separate member from the outer portion 1521. The separately provided terminal portion 1524 and the outer portion 1521 may be coupled by a conductive member. The terminal portion 1524 may be combined with the printed circuit board 300. The terminal portion 1524 may be coupled to the printed circuit board 300 by soldering. The terminal portion 1524 may be accommodated in the terminal receiving portion 1420 of the base 1400. The terminal portion 1524 may be disposed on a side opposite to the side of the first lens driving device 1000 shown in FIG. 1 .

Hereinafter, the configuration of the second lens driving device according to this embodiment will be described with reference to the drawings.

FIG. 10 is an exploded perspective view of the second lens driving device according to this embodiment, FIG. 11 is an exploded perspective view showing the AF mover of the second lens driving device according to this embodiment, and FIG. 12 is an exploded perspective view of the second lens driving device according to this embodiment. It is an exploded perspective view showing the OIS mover of the two-lens driving device, FIG. 13 is an exploded perspective view showing the substrate and circuit members of the second lens driving device according to this embodiment, and FIG. 14 is an exploded perspective view showing the second lens according to this embodiment. This is an exploded perspective view showing the elastic member of the driving device.

The second lens driving device 2000 includes a cover 2100, an AF mover 2200, an OIS mover 2300, a stator 2400, an elastic member 2500, a support member 2600, and a Hall sensor 2700. may include. However, in the second camera module 2000, a cover 2100, an AF mover 2200, an OIS mover 2300, a stator 2400, an elastic member 2500, a support member 2600, and a hall sensor 2700. ) Any one or more of these may be omitted or changed.

Cover 2100 can accommodate housing 2310. The cover 2100 of the second lens driving device 2000 may be spaced apart from the cover 1100 of the first lens driving device 1000. At this time, the separation distance between the cover 2100 and the cover 1100 (see D in FIG. 6) may be within 5 mm. Alternatively, the separation distance (D) between the cover 2100 and the cover 1100 may be within 3 mm. Alternatively, the separation distance (D) between the cover 2100 and the cover 1100 may be within 2 mm. The separation distance (D) between the cover 2100 and the cover 1100 may be 1 mm.

The cover 2100 may form the exterior of the second lens driving device 2000. The cover 2100 may have a hexahedral shape with an open bottom. However, it is not limited to this. Cover 2100 may be non-magnetic. If the cover 2100 is made of a magnetic material, the magnetic force of the cover 2100 may affect the magnet 2320. Cover 2100 may be formed of a metal material. In more detail, the cover 2100 may be made of a metal plate. In this case, the cover 2100 can block electromagnetic interference (EMI). Because of these features of the cover 2100, the cover 2100 may be referred to as an 'EMI shield can'. The cover 2100 may be connected to the ground portion of the printed circuit board 300. Through this, the cover 2100 can be grounded. The cover 2100 may block radio waves generated outside the second lens driving device from flowing into the inside of the cover 2100. Additionally, the cover 2100 may block radio waves generated inside the cover 2100 from being emitted to the outside of the cover 2100. However, the material of the cover 2100 is not limited to this.

The cover 2100 may include a top plate 2101 and a side plate 2102. The cover 2100 may include a top plate 2101 and a side plate 2102 extending downward from the outside of the top plate 2101. The lower end of the side plate 2102 of the cover 2100 may be mounted on the base 2430. The cover 2100 may be mounted on the base 2430 with its inner surface in close contact with part or all of the side surface of the base 2430. The AF mover 2200, the OIS mover 2300, the stator 2400, the elastic member 2500, and the support member 2600 can be located in the internal space formed by the cover 2100 and the base 2430. there is. Through this structure, the cover 2100 can protect internal components from external impact and simultaneously prevent penetration of external contaminants. However, it is not limited to this, and the lower end of the side plate 2102 of the cover 2100 may be directly coupled to the printed circuit board 300 located below the base 2430.

Some of the plurality of side plates 2102 of the cover 2100 of the second lens driving device 2000 may face the cover 1100 of the first lens driving device 1000. The length of the side plate 2102 of the cover 2100 in the longitudinal direction may not exceed 1.5 times the length of the side plate 1102 of the cover 1100 in the longitudinal direction.

Cover 2100 may include an opening 2110. The opening 2110 may be formed in the upper plate 2101. The opening 2110 may expose the lens module. The opening 2110 may be provided in a shape corresponding to the lens module. The size of the opening 2110 may be larger than the diameter of the lens module so that the lens module can be assembled through the opening 2110. Meanwhile, light introduced through the opening 2110 may pass through the lens module. At this time, the light passing through the lens module can be acquired as an image by the image sensor.

The AF mover 2200 may be combined with a lens module. The AF mover 2200 can accommodate the lens module inside. The outer circumferential surface of the lens module may be coupled to the inner circumferential surface of the AF mover 2200. The AF mover 2200 can move integrally with the lens module through interaction with the OIS mover 2300 and/or the stator 2400.

The AF mover 2200 may include a bobbin 2210 and a second coil 2220. However, in the AF mover 2200, one or more of the bobbin 2210 and the second coil 2220 may be omitted or changed.

The bobbin 2210 may be located inside the housing 2310. The bobbin 2210 may be accommodated in the through hole 2311 of the housing 2310. Bobbin 2210 may be combined with a lens module. In more detail, the outer peripheral surface of the lens module may be coupled to the inner peripheral surface of the bobbin 2210. The first coil 2220 may be coupled to the bobbin 2210. The lower part of the bobbin 2210 may be coupled to the lower elastic member 2520. The upper part of the bobbin 2210 may be coupled to the upper elastic member 2510. The bobbin 2210 may move in the optical axis direction with respect to the housing 2310.

The bobbin 2210 may include a through hole 2211 and a coil coupling portion 2212. However, in the bobbin 2210, one or more of the through hole 2211 and the coil coupling portion 2212 may be omitted or changed.

The through hole 2211 may be formed inside the bobbin 2210. The through hole 2211 may be formed as open top and bottom. A lens module may be coupled to the through hole 2211. A screw thread having a shape corresponding to a screw thread formed on the outer circumferential surface of the lens module may be formed on the inner peripheral surface of the through hole 2211. That is, the through hole 2211 can be screwed to the lens module. An adhesive may be interposed between the lens module and the bobbin 2210. At this time, the adhesive may be an epoxy that is cured by ultraviolet rays (UV), heat, or laser. That is, the lens module and the bobbin 2210 may be bonded using ultraviolet curing epoxy and/or heat curing epoxy.

The coil coupling portion 2212 may accommodate at least a portion of the first coil 2220. The coil coupling portion 2212 may be formed integrally with the outer surface of the bobbin 2210. Additionally, the coil coupling portion 2212 may be formed continuously along the outer surface of the bobbin 2210 or may be formed spaced apart at predetermined intervals. As an example, the coil coupling portion 2212 may be formed by recessing a portion of the outer surface of the bobbin 2210 to correspond to the shape of the first coil 2220. At this time, the first coil 2220 may be serially wound on the coil coupling portion 2212. As a variation, the coil coupling portion 2212 may be formed as an upper or lower open type. At this time, the first coil 2220 may be inserted and coupled to the coil coupling portion 2212 through the open portion in a pre-wound state.

The first coil 2220 may be disposed on the bobbin 2210. The first coil 2220 may be disposed on the outer peripheral surface of the bobbin 2210. The first coil 2220 may be directly wound on the outer peripheral surface of the bobbin 2210. The first coil 2220 may electromagnetically interact with the magnet 2320. The first coil 2220 may face the magnet 2320. In this case, when current is supplied to the first coil 2220 and a magnetic field is formed around the first coil 2220, the first coil (2220) is formed by electromagnetic interaction between the first coil 2220 and the magnet 2320. 2220) may move with respect to the magnet 2320. The first coil 2220 can move for AF driving. In this case, the first coil 2220 may be referred to as an 'AF coil'.

The first coil 2220 may include a pair of lead lines (not shown) for power supply. A pair of lead wires of the first coil 2220 may be electrically connected to the upper elastic member 2510. Each of the pair of lead wires of the first coil 2220 may be electrically connected to the upper elastic members 2510 that are provided separately as a pair. In this case, power is supplied to the first coil 2220 through the upper elastic member 2510, which is electrically connected to the printed circuit board 300 through the substrate 2410, the substrate portion 2421, and the support member 2600. It can be.

The OIS movable unit 2300 can be moved for image stabilization function. The OIS movable 2300 may be disposed outside the AF movable 2200 to face the AF movable 2200 . The OIS mover 2300 can move the AF mover 2200 or move together with the AF mover 2200. The OIS mover 2300 may be movably supported by the stator 2400 and/or the base 2430 located below. The OIS mover 2300 may be located in the inner space of the cover 2100.

The OIS mover 2300 may include a housing 2310 and a magnet 2320. However, in the OIS mover 2300, one or more of the housing 2310 and the magnet 2320 may be omitted or changed.

The housing 2310 may be arranged to be spaced apart from the housing 1310 of the first lens driving device 1000. The housing 2310 may be disposed outside the bobbin 2210. The housing 2310 may be arranged to be spaced apart from the bobbin 2210. At least a portion of the housing 2310 may be formed in a shape corresponding to the inner surface of the cover 2100. In particular, the outer surface of the housing 2310 may be formed in a shape corresponding to the inner surface of the side plate 2102 of the cover 2100. As an example, the housing 2310 may have a hexahedral shape including four sides. However, the shape of the housing 2310 may be any shape that can be placed inside the cover 2100. The housing 2310 may be formed of an insulating material. The housing 2310 may be formed as an injection molded product considering productivity. The housing 2310 is a movable part for OIS operation and may be placed at a certain distance from the cover 2100. An upper elastic member 2510 may be coupled to the upper part of the housing 2310. A lower elastic member 2520 may be coupled to the lower part of the housing 2310.

The housing 2310 may include first to fourth side portions 2301, 2302, 2303, and 2304. The housing 2310 may include first to fourth side portions 2301, 2302, 2303, and 2304 that are sequentially arranged.

The housing 2310 may include a through hole 2311 and a magnet coupling portion 2312. However, one or more of the through hole 2311 and the magnet coupling portion 2312 may be omitted or changed in the housing 2310.

The through hole 2311 may be formed inside the housing 2310. The through hole 2311 may be formed in the housing 2310 to be open top and bottom. A bobbin 2210 can be accommodated in the through hole 2311. A bobbin 2210 may be movably disposed in the through hole 2311. The through hole 2311 may be provided in a shape corresponding to the bobbin 2210.

The magnet coupling portion 2312 may be formed on the side of the housing 2310. The magnet coupling portion 2312 may accommodate at least a portion of the magnet 2320. An adhesive (not shown) may be placed between the magnet coupling portion 2312 and the magnet 2320. That is, the magnet coupling portion 2312 and the magnet 2320 may be coupled with an adhesive. The magnet coupling portion 2312 may be located on the inner surface of the housing 2310. The magnet coupling portion 2312 may be formed by partially recessing the inner surface of the housing 2310 to the outside. In this case, there is an advantage in electromagnetic interaction with the first coil 2220 located inside the magnet 2320. The magnet coupling portion 2312 may have an open bottom. In this case, there is an advantage in electromagnetic interaction with the second coil 2422 located below the magnet 2320.

The magnet 2320 may be located in the housing 2310. The magnet 2320 may be accommodated in the magnet coupling portion 2312 of the housing 2310. The magnet 2320 may electromagnetically interact with the first coil 2220. The magnet 2320 may face the first coil 2220. The magnet 2320 can move the bobbin 2210 to which the first coil 2220 is fixed. The magnet 2320 can move the first coil 2220 for AF driving. In this case, the magnet 2320 may be referred to as an 'AF driving magnet'. Additionally, the magnet 2320 may face the second coil 2422. The magnet 2320 can be moved to drive OIS. In this case, the magnet 2320 may be referred to as an 'OIS driving magnet'. Accordingly, the magnet 2320 may be referred to as an ‘AF/OIS common driving magnet.’

The magnet 2320 may include four corner magnets. The four corner magnets can be arranged so that the N pole faces inward. Alternatively, the four corner magnets may be arranged so that the S pole faces inward. The four corner magnets may have a pillar shape where the inner side is larger than the outer side.

The magnet 2320 may have its inner and outer surfaces arranged in parallel as shown in FIG. 6 . The inner surface of the magnet 2320 may be disposed parallel to the outer surface of the magnet 2320 on the opposite side from the outer surface of the magnet 2320. The magnet 2320 may include a side connecting the inner surface and the outer surface from the side. At this time, some of both sides of the magnet 2320 may include parallel surfaces that are parallel to each other. However, in another embodiment, as shown in FIG. 15, both sides of the magnet 2320 may not include parallel surfaces.

The stator 2400 may be located below the AF mover 2200. The stator 2400 may be located below the OIS mover 2300. The stator 2400 can move the OIS mover 2300. At this time, the AF mover 2200 can also be moved along with the OIS mover 2300. That is, the stator 2400 can move the AF mover 2200 and the OIS mover 2300.

The stator 2400 may include a substrate 2410, a circuit member 2420, and a base 2430. However, in the stator 2400, one or more of the substrate 2410, circuit member 2420, and base 2430 may be omitted or changed.

The substrate 2410 may be a flexible printed circuit board (FPCB). The substrate 2410 may be placed on the top of the base 2430. The substrate 2410 may be positioned between the base 2430 and the circuit member 2420. The substrate 2410 may be electrically connected to the second coil 2422. The substrate 2410 may be electrically connected to the first coil 2220. The substrate 2410 may be electrically connected to the first coil 2220 through the support member 2600 and the upper elastic member 2510.

The substrate 2410 may include a through hole 2411 and a terminal 2412. However, in the board 2410, one or more of the through hole 2411 and the terminal 2412 may be omitted or changed.

The through hole 2411 may be formed in the center of the substrate 2410. The through hole 2411 may be formed to penetrate upward and downward through the substrate 2410. The through hole 2411 may overlap the lens module in the optical axis direction. The through hole 2411 can pass light that has passed through the lens module.

The terminal 2412 may be formed by bending a portion of the substrate 2410. The terminal 2412 may be formed by bending a portion of the substrate 2410 downward. At least a portion of the terminal 2412 may be exposed to the outside. The lower end of the terminal 2412 may be coupled to the printed circuit board 300. The terminal 2412 may be soldered to the printed circuit board 300. The board 2410 may be electrically connected to the printed circuit board 300 through the terminal 2412.

The circuit member 2420 may be disposed on the upper surface of the substrate 2410. The circuit member 2420 may be disposed on the base 2430. The circuit member 2420 may be disposed between the substrate 2410 and the housing 2310.

The circuit member 2420 may include a substrate portion 2421 and a second coil 2422. However, in the circuit member 2420, one or more of the substrate portion 2421 and the second coil 2422 may be omitted or changed.

The substrate portion 2421 may be a flexible printed circuit board (FPCB). The second coil 2422 may be formed in the substrate portion 2421 as a fine pattern coil (FPC). The substrate portion 2421 may be disposed on the upper surface of the substrate 2410. The substrate 2421 may be electrically connected to the substrate 2410. The substrate portion 2421 may be electrically connected to the second coil 2422.

The second coil 2422 may be formed as a fine pattern coil (FPC) on the substrate 2421. The second coil 2422 may be located on the base 2430. The second coil 2422 may electromagnetically interact with the magnet 2320. The second coil 2422 may face the magnet 2320. In this case, when current is supplied to the second coil 2422 and a magnetic field is formed around the second coil 2422, the magnet 2320 is formed by electromagnetic interaction between the second coil 2422 and the magnet 2320. can move with respect to the second coil 2422. The second coil 2422 can move the magnet 2320 to drive OIS. In this case, the second coil 2422 may be referred to as an 'OIS coil'.

The base 2430 may be disposed on the lower side of the housing 2310. The base 2430 can movably support the housing 2310. The base 2430 may be located on the upper surface of the printed circuit board 300. An infrared filter may be coupled to the base 2430.

The base 2430 may include a through hole 2431, a terminal receiving portion 2432, and a sensor receiving portion 2433. However, in the base 2430, one or more of the through hole 2431, the terminal accommodating part 2432, and the sensor accommodating part 2433 may be omitted or changed.

The through hole 2431 may be formed in the center of the base 2430. The through hole 2431 may be formed to penetrate the base 2430 up and down. The through hole 2431 may overlap the lens module in the optical axis direction. The through hole 2431 can pass light that has passed through the lens module.

The terminal receiving portion 2432 may be formed on the side of the base 2430. The terminal receiving portion 2432 may be formed by a portion of the outer side of the base 2430 being depressed inward. The terminal receiving portion 2432 may accommodate at least a portion of the terminal 2412 of the board 2410. The terminal receiving portion 2432 may be formed to have a width corresponding to that of the terminal 2412.

The sensor receiving portion 2433 may be formed on the upper surface of the base 2430. The sensor receiving portion 2433 may be formed by partially recessing the upper surface of the base 2430 downward. The sensor receiving portion 2433 may be formed as a groove. The sensor accommodating portion 2433 may accommodate at least a portion of the Hall sensor 2700. The sensor receiving portion 2433 may be formed in a shape corresponding to the hall sensor 2700. The sensor receiving portion 2433 may be formed in a number corresponding to the number of hall sensors 2700. There may be two sensor receptors 2433.

The elastic member 2500 may be coupled to the bobbin 2210 and the housing 2310. The elastic member 2500 can elastically support the bobbin 2210. The elastic member 2500 may support the bobbin 2210 movably with respect to the housing 2310. At least a portion of the elastic member 2500 may have elasticity.

The elastic member 2500 may include an upper elastic member 2510 and a lower elastic member 2520. However, in the elastic member 2500, one or more of the upper elastic member 2510 and the lower elastic member 2520 may be omitted or changed.

The upper elastic member 2510 may be coupled to the upper part of the bobbin 2210 and the upper part of the housing 2310. The upper elastic member 2510 may be disposed on the upper side of the bobbin 2210 and coupled to the bobbin 2210 and the housing 2310. The upper elastic member 2510 may be electrically connected to the first coil 2220. The upper elastic members 2510 may be provided in pairs and spaced apart from each other. A pair of upper elastic members 2510 may be coupled to a pair of lead wires of the first coil 2220.

The upper elastic member 2510 may include an outer portion 2511, an inner portion 2512, a connecting portion 2513, and a coupling portion 2514. However, in the upper elastic member 2510, one or more of the outer portion 2511, the inner portion 2512, the connecting portion 2513, and the coupling portion 2514 may be omitted or changed.

The outer portion 2511 may be coupled to the housing 2310. The outer portion 2511 may be coupled to the upper surface of the housing 2310. The inner portion 2512 may be coupled to the bobbin 2210. The inner portion 2512 may be coupled to the upper surface of the bobbin 2210. The connection portion 2513 may connect the outer portion 2511 and the inner portion 2512. The connection portion 2513 can elastically connect the outer portion 2511 and the inner portion 2512. The connection portion 2513 may have elasticity. The coupling portion 2514 may extend from the outer portion 2511. The coupling portion 2514 may extend outward from the outer portion 2511. The coupling portion 2514 may be located on the four corner sides of the housing 2310. The coupling portion 2514 may be coupled to the support member 2600.

The lower elastic member 2520 may be coupled to the lower part of the bobbin 2210 and the lower part of the housing 2310. The lower elastic member 2520 may be disposed on the lower side of the bobbin 2210 and coupled to the bobbin 2210 and the housing 2310. The lower elastic member 2520 may be formed integrally.

The lower elastic member 2520 may include an outer portion 2521, an inner portion 2522, and a connection portion 2523. However, in the lower elastic member 2520, one or more of the outer portion 2521, the inner portion 2522, and the connecting portion 2523 may be omitted or changed.

The outer portion 2521 may be coupled to the housing 2310. The outer portion 2521 may be coupled to the lower surface of the housing 2310. The inner portion 2522 may be coupled to the bobbin 2210. The inner portion 2522 may be coupled to the lower surface of the bobbin 2210. The connection portion 2523 may connect the outer portion 2521 and the inner portion 2522. The connection portion 2523 can elastically connect the outer portion 2521 and the inner portion 2522. The connection portion 2523 may have elasticity.

The support member 2600 can movably support the housing 2310. The support member 2600 can movably support the OIS mover 2300 with respect to the stator 2400. The lower end of the support member 2600 may be coupled to the circuit member 2420. The upper end of the support member 2600 may be coupled to the upper elastic member 2510. The support member 2600 may include a plurality of wires. Alternatively, the support member 2600 may include a plurality of plate slings. The support member 2600 may have elasticity at least in part. The support member 2600 may be formed as an electricity-conducting member. The circuit member 2420 and the second upper elastic member 2510 may be energized by the support member 2600. The support member 2600 may be provided in four pieces so that it can be disposed at each of the four corners of the housing 2310.

Dampers (not shown) may be disposed on the support member 2600 and the housing 2310. Dampers may be disposed on the support member 2600 and the elastic member 2500. The damper can prevent resonance that can occur in AF/OIS feedback drive. Alternatively, as a modified example, a buffer portion (not shown) formed by changing the shape of a portion of the support member 2600 and/or the elastic member 2500 may be provided instead of the damper. The buffer portion may be bent or curved.

The Hall sensor 2700 can be used for an image stabilization feedback function. The Hall sensor 2700 may be a Hall IC. The Hall sensor 2700 can detect the magnetic force of the magnet 2320. The Hall sensor 2700 can detect movement of the housing 2310. The Hall sensor 2700 can detect the magnet 2320 fixed to the housing 2310. The Hall sensor 2700 may be electrically connected to the substrate 2410. The Hall sensor 2700 may be accommodated in the sensor receiving portion 2433 of the base 2430. Two Hall sensors 2700 are arranged at an angle of 90 degrees to each other with respect to the optical axis, and can detect the movement of the housing 2310 as x-axis and y-axis components.

In the above, just because all the components constituting the embodiment of the present invention have been described as being combined or operated in combination, the present invention is not necessarily limited to this embodiment. That is, as long as it is within the scope of the purpose of the present invention, all of the components may be operated by selectively combining one or more of them. In addition, terms such as 'include', 'comprise', or 'have' described above mean that the corresponding component may be present, unless specifically stated to the contrary, and therefore do not exclude other components. Rather, it should be interpreted as being able to include other components. All terms, including technical or scientific terms, unless otherwise defined, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Commonly used terms, such as terms defined in a dictionary, should be interpreted as consistent with the contextual meaning of the related technology and, unless explicitly defined in the present invention, should not be interpreted in an idealized or overly formal sense.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but rather to explain it, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

1000: First lens driving device 1320: Magnet
1330: first groove 1334: second groove
2000: Second lens driving device

Claims (20)

Includes a first camera module and a second camera module,
The first camera module includes a first cover, a first bobbin disposed within the first cover, and a magnet disposed between the first bobbin and the first cover,
The second camera module includes a second cover, a second bobbin disposed within the second cover, and a magnet disposed between the second bobbin and the second cover,
The magnet of the second camera module includes four magnets,
When viewed from above, in a direction from the optical axis of the second camera module to the optical axis of the first camera module, each of the four magnets of the second camera module has a first area overlapping with the magnet of the first camera module and , including a second area that does not overlap with the magnet of the first camera module,
The first cover includes a first side plate disposed to face the second cover, a second side plate disposed on an opposite side of the first side plate, and a third and fourth side plate disposed on opposite sides of the first cover,
The magnet of the first camera module includes a first magnet disposed between the third side plate and the first bobbin, and a second magnet disposed between the fourth side plate and the first bobbin,
A camera module wherein each of the first and second magnets of the first camera module has a different shape and size than each of the four magnets of the second camera module. According to paragraph 1,
The magnet of the first camera module and the magnet of the second camera module are perpendicular to a virtual plane connecting the optical axis of the first camera module and the optical axis of the second camera module, and the optical axis of the first camera module A camera module that is asymmetric about any virtual plane parallel to . According to paragraph 1,
The first camera module includes a first coil disposed on the first bobbin,
The second camera module is a camera module including a second coil disposed on the second bobbin. According to paragraph 1,
The second cover includes a fifth and sixth side plate disposed on opposite sides of each other, and a seventh and eighth side plate disposed on opposite sides of each other,
A camera module wherein the first side plate of the first cover and the fifth side plate of the second cover are arranged to face each other. According to paragraph 4,
The four magnets of the second camera module are arranged in a corner area between the fifth to eighth side plates of the second cover. According to paragraph 4,
The four magnets of the second camera module include a third magnet disposed between the fifth side plate and the seventh side plate, a fourth magnet disposed between the fifth side plate and the eighth side plate, and the sixth magnet disposed between the fifth side plate and the eighth side plate. A camera module including a fifth magnet disposed between the side plate and the seventh side plate, and a sixth magnet disposed between the sixth side plate and the eighth side plate. According to paragraph 1,
A camera module in which a magnet is not disposed between the first bobbin and the first side plate of the first cover of the first camera module. According to paragraph 1,
A camera module in which a magnet is not disposed between the first bobbin and the second side plate of the first cover of the first camera module. According to paragraph 1,
The first and second magnets are arranged to be biased toward the second side plate rather than the first side plate. According to paragraph 1,
A camera module in which each of the first and second magnets is formed asymmetrically with respect to the center of each of the first and second magnets. According to paragraph 1,
Each of the first and second magnets includes an upper surface, a lower surface, an inner surface facing the first bobbin, an outer surface disposed opposite the inner surface, and both sides connecting the inner surface and the outer surface,
The both sides of each of the first and second magnets include a first surface disposed on a side of the first side plate and a second surface disposed opposite to the first surface,
Each of the first and second magnets has a first groove disposed in a first corner connecting the first surface and the inner surface, and a second groove disposed in a second corner connecting the second surface and the inner surface. Contains a camera module. According to clause 11,
A camera module in which the sunken depth of the first groove from the first surface is smaller than the sunken depth of the second groove from the second surface. According to clause 11,
The camera module wherein the recessed depth from the inner surface of the first groove is less than or equal to the recessed depth from the inner surface of the second groove. According to clause 11,
The first groove and the second groove include a curved surface that is concave. According to clause 11,
The first camera module includes a housing disposed between the first cover and the first bobbin,
The housing includes a first support portion formed in a shape corresponding to the first groove and disposed in the first groove, and a second support portion formed in a shape corresponding to the second groove and disposed in the second groove. Camera module. According to clause 11,
The first groove and the second groove each extend from the upper surface to the lower surface of the first and second magnets. According to clause 11,
A camera module in which grooves are not formed on the outer surfaces of the first and second magnets. According to clause 11,
A camera module wherein the polarities of the inner surface and the outer surface of the first and second magnets are different from each other. Includes a first camera module and a second camera module,
The first camera module includes a first cover and a magnet disposed within the first cover,
The second camera module includes a second cover and a magnet disposed within the second cover,
The magnet of the second camera module includes four magnets,
The four magnets of the second camera module are arranged in four corner areas of the second cover,
When viewed from above, in a direction from the optical axis of the second camera module to the optical axis of the first camera module, each of the four magnets of the second camera module has a first area overlapping with the magnet of the first camera module and , including a second area that does not overlap with the magnet of the first camera module,
The first cover includes a first side plate disposed to face the second cover, a second side plate disposed on an opposite side of the first side plate, and a third and fourth side plate disposed on opposite sides of the first cover,
The magnet of the first camera module includes a first magnet disposed on the third side plate and a second magnet disposed on the fourth side plate,
A camera module wherein each of the first and second magnets of the first camera module has a different shape and size than each of the four magnets of the second camera module. main body;
The camera module of any one of claims 1 to 19 disposed in the main body; and
An optical device including a display disposed on the main body and outputting images captured by the camera module.