Lens driving device, camera device, and optical apparatus

Abstract

The present invention relates to a lens driving device, a camera device, and an optical apparatus. The lens driving device includes a base, a cover provided on the base and including a lateral plate, a coil holder provided in the cover, a housing provided between the cover and the coil holder, a first coil provided on the coil holder, a magnet provided on the housing, a first substrate provided on the base, and a second substrate provided on the first substrate and including a second coil, wherein the first substrate includes a body portion provided on an upper surface of the base, a bent portion bent from the body portion, and a fourth terminal provided on an outer surface of the bent portion, and wherein the fourth terminal of the first substrate is in contact with an inner surface of the lateral plate of the cover.

Description

[0001] This application is a divisional application of the invention patent application filed on September 5, 2019, with application number 201980057561.6 (PCT / KR2019 / 011493) and entitled "Lens Driving Device and Camera Device". Technical Field

[0002] This embodiment relates to a lens driving device and a camera device. Background Technology

[0003] The following description provides background information for this embodiment, but does not describe the prior art.

[0004] With the widespread adoption of various smartphones and the commercialization of wireless internet services, consumer demand related to smartphones has become more diversified, and various types of add-ons have been installed on smartphones.

[0005] Among the above-mentioned additional devices, there is a camera device for capturing objects as photographs or GIFs. Recent camera devices have incorporated image stabilization functions to prevent image shake caused by the photographer's hand tremors.

[0006] In conventional actuators used for image stabilization, the connection terminals for the OIS drive coil and the FPCB are positioned around the inner through-hole.

[0007] In this case, when foreign objects, such as flux and solder balls, are generated during the soldering process of the connection terminals of the FPCB and OIS drive coil, there is a problem that the distance to the image sensor is short and therefore susceptible to the influence of foreign objects.

[0008] Furthermore, the inner through-hole serves as an assembly guide for the FPCB and the base, and there is a problem that the height and size of the leads generated in the soldering section may cause mechanical interference to the shape of the base guide. Therefore, it is also susceptible to concentricity failures and lifting failures. Summary of the Invention

[0009] Technical topics

[0010] This embodiment aims to provide a lens driving device that minimizes the influence of foreign matter, such as leads and flux, generated in the soldering portion of the connection terminals that connect the FPCB and the OIS drive coil.

[0011] In addition, this embodiment aims to provide a lens driving device in which mechanical interference does not occur when driving the OIS by arranging the welded portion on the opposite side of the surface facing the magnet.

[0012] In addition, this embodiment aims to provide a lens driving device that prevents lifting by adding an escape shape of the welded portion to the corresponding surface of the base.

[0013] Furthermore, this embodiment is intended to provide a camera device including a lens driving device.

[0014] Technical solutions

[0015] The lens driving device according to this embodiment includes: a housing; a coil holder disposed in the housing; a first coil disposed on the coil holder; a magnet disposed in the housing and facing the first coil; a base disposed below the housing; a first substrate disposed on the base; a second substrate including a second coil facing the magnet and disposed on the first substrate; and a conductive member electrically connecting the first substrate and the second substrate, wherein the first substrate includes a body portion disposed on the upper surface of the base, an extension portion bent and extending from the body portion, a first groove formed on the outer periphery of the body portion, and a first terminal formed on the lower surface of the first substrate and adjacent to the first groove. In the first substrate, the second substrate includes a second terminal formed on the lower surface of the second substrate and disposed at a position corresponding to the first terminal of the first substrate. A conductive member connects the first terminal of the first substrate and the second terminal of the second substrate. The body portion of the first substrate includes a first lateral surface, a second lateral surface disposed opposite to the first lateral surface, and a third lateral surface and a fourth lateral surface disposed opposite to each other between the first lateral surface and the second lateral surface. An extension portion of the first substrate is formed on the third lateral surface and the fourth lateral surface. The first terminal of the first substrate includes four terminals, two of which are disposed adjacent to the first lateral surface, and the other two terminals may be disposed adjacent to the second lateral surface.

[0016] The base may include a second groove formed on the upper surface of the base and at a position corresponding to the first terminal.

[0017] The first terminal of the first substrate and the second terminal of the second substrate are connected by welding, and at least a portion of the solder can be disposed in the second groove of the base.

[0018] The coil frame includes a hole formed in the coil frame along the optical axis, the base includes a first hole formed in the base along the optical axis at a position corresponding to the hole in the coil frame, and a second groove of the base may be disposed closer to the outer periphery of the base than the first hole of the base.

[0019] The first groove of the first substrate may include: a first-first groove and a first-second groove, the first-first groove and the first-second groove being formed by recessing from a first lateral surface of the body portion of the first substrate and spaced apart from each other; and a first-third groove and a first-fourth groove, the first-third groove and the first-fourth groove being formed by recessing from a second lateral surface of the body portion of the first substrate and spaced apart from each other.

[0020] The first terminal of the first substrate includes a first-first terminal extending from a first-first groove, a first-second terminal extending from a first-second groove, a first-third terminal extending from a first-third groove, and a first-fourth terminal extending from a first-fourth groove, wherein the first-first terminal extends from the first-first groove toward the first-second groove, the first-second terminal extends from the first-second groove toward the first-first groove, the first-third terminal extends from the first-third groove toward the first-fourth groove, and the first-fourth terminal extends from the first-fourth groove toward the first-third groove.

[0021] The lens driving device may include: an upper elastic member connected to the upper portion of the coil holder and the upper portion of the housing; and a support member connected to the upper elastic member and the body portion of the first substrate.

[0022] The first terminal of the first substrate extends along the lower surface of the first substrate. The first substrate includes a third terminal formed on the lower surface of the first substrate and connected to a support member. The support member includes four wires. The third terminal of the first substrate includes a third-first terminal to a third-fourth terminal respectively connected to the four wires. Compared to the second lateral surface of the first substrate, the third-first terminal and the third-second terminal are disposed closer to the first lateral surface, and the first-first terminal and the first-second terminal can be disposed between the third-first terminal and the third-second terminal.

[0023] The lens driving device also includes a cover made of metal material, the cover including an upper plate disposed on a coil frame and side plates extending from the upper plate and connected to a base. The side surfaces of the base include a fifth side surface, a sixth side surface disposed opposite to the fifth side surface, and a seventh side surface and an eighth side surface disposed opposite to each other between the fifth side surface and the sixth side surface. The base includes a third groove formed on each of the fifth side surface and the sixth side surface, and a fourth groove formed on each of the seventh side surface and the eighth side surface. An extension of a first substrate is disposed in the fourth groove of the base. The first substrate includes a bent portion and a fourth terminal. The bent portion extends from each of the first side surface and the second side surface of the first substrate and is disposed in the third groove of the base. The fourth terminal is disposed on the outer surface of the bent portion, and the fourth terminal of the first substrate can contact the inner surface of the side plate of the cover.

[0024] The lens driving device also includes a Hall sensor disposed on the lower surface of the first substrate, and the base includes a second hole spaced apart from the second groove, and the Hall sensor may be disposed in the second hole of the base.

[0025] The base includes: a protrusion extending from the upper surface of the base portion along the inner peripheral surface of the first hole of the base; and a protrusion projecting outward from the protrusion. Each of the first substrate and the second substrate may include a third hole and a fifth groove, the third hole corresponding to the protrusion of the base, and the fifth groove being formed in a shape corresponding to the protrusion at a position corresponding to the protrusion on the inner peripheral surface of the third hole.

[0026] The lens driving device according to this embodiment includes: a printed circuit board; an image sensor disposed on the printed circuit board; a housing disposed on the printed circuit board; a coil holder disposed in the housing; a lens coupled to the coil holder and disposed at a position corresponding to the image sensor; a first coil disposed on the coil holder; a magnet disposed in the housing and facing the first coil; a base disposed between the printed circuit board and the housing; a first substrate including a body portion disposed on an upper surface of the base and an extension portion extending from the body portion and disposed on a lateral surface of the base; and a second substrate including a second coil facing the magnet, and the second substrate being disposed on the first substrate. On the upper surface of the body portion; an upper elastic member connected to the upper portion of the coil frame and the upper portion of the housing; and a support member connected to the upper elastic member and the body portion of the first substrate, wherein the second substrate includes a second terminal disposed on the lower surface of the second substrate, the first substrate includes a first groove and a first terminal, the first groove being formed on the outer surface of the body portion of the first substrate and disposed at a position corresponding to the second terminal of the second substrate, the first terminal extending from the first groove along the lower surface of the first substrate, the first terminal of the first substrate and the second terminal of the second substrate being connected by a conductive member, the base including a second groove formed on the upper surface of the base, and at least a portion of the conductive member being disposed in the second groove of the base.

[0027] Beneficial effects

[0028] This implementation method minimizes the impact of foreign matter, such as leads and flux, generated in the soldering portion of the connection terminals that connect the FPCB and the OIS drive coil.

[0029] Additionally, mechanical interference during OIS driving can be prevented by arranging the welded portion on the opposite side of the surface facing the magnet.

[0030] Additionally, the FPCB and OIS drive coil can be prevented from being lifted by adding an escape shape to the corresponding surface of the base.

[0031] Furthermore, since there are no solder terminals (first terminals) on the side of the extension portion on which the supply terminals are provided on the first substrate, even if the number of terminals provided on the extension portion increases, the soldering processability between the substrate of the lens drive device and the substrate of the camera module can be ensured by increasing the width or spacing of the extension portion. Attached Figure Description

[0032] Figure 1 This is a perspective view of the lens driving device according to this embodiment.

[0033] Figure 2 From Figure 1 Cross-sectional view observed by AA.

[0034] Figure 3 From Figure 1 Cross-sectional view observed by BB.

[0035] Figure 4 This is an exploded perspective view of the lens driving device according to this embodiment.

[0036] Figure 5 This is an exploded perspective view of some components of the lens driving device according to this embodiment.

[0037] Figure 6 This is a bottom perspective view of some components of the lens driving device according to this embodiment.

[0038] Figure 7 This is a bottom view of some components of the lens driving device according to this embodiment.

[0039] Figure 8 This is an exploded perspective view of the bottom of some components of the lens driving device according to this embodiment.

[0040] Figure 9 This is a perspective view of the base of the lens driving device according to this embodiment.

[0041] Figure 10 This is a perspective view of the upper elastic member of the lens driving device according to this embodiment.

[0042] Figure 11 This is a perspective view of the lower elastic member of the lens driving device according to this embodiment.

[0043] Figure 12 This is a bottom view of some components of a lens driving device according to a modified embodiment.

[0044] Figure 13 This is a perspective view of the base of the lens driving device according to a modified embodiment. Detailed Implementation

[0045] In the following, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0046] However, the technical concept of the present invention is not limited to the few embodiments described, but can be implemented in various forms, and within the scope of the technical concept of the present invention, one or more components can be selected, combined and substituted among the embodiments for use.

[0047] Furthermore, unless explicitly defined and described, the terminology (including technical and scientific terms) used in embodiments of the present invention is as commonly understood by one of ordinary skill in the art to which this invention pertains, and terms may be interpreted as having a meaning, and commonly used terms, such as those defined in dictionaries, may be interpreted in light of their meaning in the context of the relevant art.

[0048] Furthermore, the terminology used in the embodiments of the present invention is for describing the embodiments and is not intended to limit the present invention.

[0049] In this specification, unless explicitly stated in the phrase, the singular form may include the plural form, and when described as “at least one (or more than one) of A, B, and C,” the singular form may include one or more of all combinations that can be combined with A, B, and C.

[0050] Additionally, terms such as first, second, A, B, (a), (b), etc., can be used to describe components of embodiments of the present invention. These terms are only used to distinguish components from other components, and they do not limit the nature, order, or sequence of the components.

[0051] Furthermore, when a component is described as 'connected', 'linked', or 'interconnected' to another component, the component is not only directly connected, linked, or interconnected to another component, but may also include cases where the component is 'connected', 'linked', or 'interconnected' to another component due to the connection, linking, or interconnection between other components.

[0052] Furthermore, when a component is described as being formed or disposed on the "top (upper side) or bottom (lower side)" of each component, "top (upper side)" or "bottom (lower side)" includes not only the case where two components are in direct contact with each other, but also the case where one or more other components are formed or disposed between the two components. Additionally, when expressed as "top (upper side)" or "bottom (lower side)," it can include not only the meaning based on the upward direction of a component, but also the meaning based on the downward direction of a component.

[0053] The 'optical axis direction' used below is defined as the optical axis direction of the lens connected to the retainer. 'Optical axis direction' can also correspond to 'up-down direction', 'z-axis direction', etc.

[0054] The term "autofocus function" as used below is defined as a function that automatically focuses on an object by moving the lens along the optical axis according to the distance of the object, thereby enabling a clear image of the object to be obtained on the image sensor. Furthermore, "autofocus" can be used interchangeably with "autofocus (AF)".

[0055] The “image stabilization function” used below is defined as the function of moving or tilting the lens module in a direction perpendicular to the optical axis to counteract vibrations (motions) generated in the image sensor by external forces. Meanwhile, “image stabilization” can be used interchangeably with “optical image stabilization (OIS)”.

[0056] In the following description, the configuration of the optical device according to this embodiment will be described with reference to the accompanying drawings.

[0057] Optical devices can be any of mobile phones, smartphones, portable smart devices, digital cameras, laptops, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), and navigation devices. However, the types of optical devices are not limited to these, and any device used to capture images or pictures can be included in an optical device.

[0058] An optical device may include a main body. The main body may form the appearance of the optical device. The main body may house a camera device. A display unit may be disposed on one surface of the main body. For example, a display unit and a camera device may be disposed on one surface of the main body, and another camera device may be disposed on another surface of the main body (the surface opposite to the first surface).

[0059] The optical device may include a display unit. The display unit may be disposed on a surface of the main body. The display unit may output images captured by the camera device.

[0060] Optical devices may include camera devices. The camera devices may be housed within a body. At least a portion of the camera device may be contained within the body. Multiple camera devices may be provided. Camera devices may be respectively disposed on one surface of the body and another surface of the body. The camera devices can capture images of objects.

[0061] In the following description, the configuration of the camera device according to this embodiment will be described with reference to the accompanying drawings.

[0062] The camera assembly may include a lens module. The lens module may include at least one lens. The lens module may include a lens barrel and multiple lenses connected to the interior of the lens barrel. The lens module may be coupled to the coil holder 110 of the lens drive device. The lens module may be coupled to the coil holder 110 via threaded connections and / or adhesives. The lens module may be integrally movable with the coil holder 110.

[0063] The camera device may include a filter. This filter may include an infrared filter. The infrared filter blocks light in the infrared region from entering the image sensor. The infrared filter may be disposed between the lens and the image sensor. For example, the infrared filter may be disposed on the sensor base, which is located between the lens drive and the printed circuit board. As another example, the infrared filter may be disposed on base 430.

[0064] The camera device may include a printed circuit board. A lens driving mechanism may be mounted on the printed circuit board. In this case, the sensor base may be positioned between the printed circuit board and the lens driving mechanism. The printed circuit board may be electrically connected to the lens driving mechanism. An image sensor may be mounted on the printed circuit board. The printed circuit board may be electrically connected to the image sensor.

[0065] A camera device may include an image sensor. The image sensor may be mounted on a printed circuit board (PCB). The image sensor may be electrically connected to the PCB. For example, the image sensor may be connected to the PCB using surface mount technology (SMT). As another example, the image sensor may be connected to the PCB using flip-chip technology. The image sensor may be configured such that the lens and optical axis coincide. That is, the optical axis of the image sensor and the optical axis of the lens may be aligned. The image sensor converts light radiated to its effective image area into an electrical signal. The image sensor may be any of a charge-coupled device (CCD), metal-oxide-semiconductor (MOS), CPD, and CID.

[0066] The camera device may include a controller. The controller may be mounted on a printed circuit board. The controller may independently control the direction, intensity, and amplitude of the current supplied to the first coil 120 and the second coil 331 of the lens drive device. The controller may perform autofocus and / or image stabilization functions by controlling the lens drive device. Furthermore, the controller may perform autofocus feedback control and / or image stabilization feedback control for the lens drive device.

[0067] In the following description, the configuration of the lens driving device according to this embodiment will be described with reference to the accompanying drawings.

[0068] Figure 1 This is a perspective view of the lens driving device according to this embodiment. Figure 2 From Figure 1 Cross-sectional view observed by AA, Figure 3 From Figure 1 Cross-sectional view observed by BB. Figure 4 This is an exploded perspective view of the lens driving device according to this embodiment. Figure 5 This is an exploded perspective view of some components of the lens driving device according to this embodiment. Figure 6This is a bottom perspective view of some components of the lens driving device according to this embodiment. Figure 7 This is a bottom view of some components of the lens driving device according to this embodiment. Figure 8 This is an exploded perspective view of the bottom of some components of the lens driving device according to this embodiment. Figure 9 This is a perspective view of the base of the lens driving device according to this embodiment. Figure 10 This is a perspective view of the upper elastic member of the lens driving device according to this embodiment, and Figure 11 This is a perspective view of the lower elastic member of the lens driving device according to this embodiment.

[0069] The lens driving device can be a voice coil motor (VCM). The lens driving device can be a lens drive motor. The lens driving device can be a lens drive actuator. The lens driving device can include an AF module. The lens driving device can include an OIS module. The lens driving device according to this exemplary embodiment can include an external arrangement structure of the solder terminal unit.

[0070] The lens driving device may include a first moving member 100. The first moving member 100 may be coupled to a lens. The first moving member 100 may be coupled to a second moving member 200 via an elastic member 400. The first moving member 100 may move through interaction with the second moving member 200. At this time, the first moving member 100 may move integrally with the lens. Simultaneously, the first moving member 100 may move during AF driving. At this time, the first moving member 100 may be referred to as an 'AF moving member'. However, the first moving member 100 may also move together with the second moving member 200 even during OIS driving.

[0071] The lens driving device may include a coil holder 110. The coil holder 110 may be disposed within a housing 210. The coil holder 110 may be disposed in a hole in the housing 210. The coil holder 110 may be movably coupled to the housing 210. The coil holder 110 may be movable relative to the housing 210 along the optical axis. A lens may be coupled to the coil holder 110. The coil holder 110 may include a hole formed in the coil holder 110 along the optical axis. The lens may be coupled to the hole in the coil holder 110. The coil holder 110 and the lens may be coupled by threaded connection and / or adhesive. A first coil 120 may be coupled to the coil holder 110. An upper elastic member 410 may be coupled to the upper part or upper surface of the coil holder 110. A lower elastic member 420 may be coupled to the lower portion or lower surface of the coil holder 110. The coil holder 110 may be coupled to the elastic member 420 by heat fusion and / or adhesive. The adhesive that connects the coil frame 110 and the lens, as well as the coil frame 110 and the elastic member 400, can be an epoxy resin that is cured by at least one of ultraviolet (UV), heat, and laser.

[0072] The lens driving device may include a first coil 120. The first coil 120 may be an 'AF driving coil' for AF driving. The first coil 120 may be disposed on a coil holder 110. The first coil 120 may be disposed between the coil holder 110 and the housing 210. The first coil 120 may be disposed on an outer surface or an outer circumferential surface of the coil holder 110. The first coil 120 may be directly wound on the coil holder 110. Alternatively, the first coil 120 may be directly wound and connected to the coil holder 110. The first coil 120 may face the magnet 220. The first coil 120 may be configured to face the magnet 220. The first coil 120 may interact electromagnetically with the magnet 220. In this case, when current is supplied to the first coil 120 and an electromagnetic field is formed around the first coil 120, the first coil 120 may move relative to the magnet 220 due to the electromagnetic interaction between the first coil 120 and the magnet 220. The first coil 120 may be formed as a single coil. Alternatively, the first coil 120 may include a plurality of coils spaced apart from each other.

[0073] The first coil 120 may include a pair of leads for supplying power. One end (lead) of the first coil 120 may be connected to the first connection portion 424 of the first lower elastic unit 420a. The other end (lead) of the first coil 120 may be connected to the first connection portion 424 of the second lower elastic unit 420b. Additionally, the first lower elastic unit 420a and the second lower elastic unit 420b may be connected to a substrate 711, to which the first Hall sensor 712 is connected. Thus, the first Hall sensor 712 integrated in the driver IC and the first coil 120 can be electrically connected. The first coil 120 can receive current under the control of the first Hall sensor 712 integrated in the driver IC.

[0074] The lens driving device may include a second moving member 200. The second moving member 200 may be movably connected to the fixed member 300 via a support member 500. The second moving member 200 may support the first moving member 100 via an elastic member 400. The second moving member 200 may move the first moving member 100 or may move together with the first moving member 100. The second moving member 200 may move through interaction with the fixed member 300. The second moving member 200 may move during OIS driving. In this case, the second moving member 200 may be referred to as an 'OIS moving member'. The second moving member 200 may move integrally with the first moving member 100 during OIS driving.

[0075] The lens driving device may include a housing 210. The housing 210 may be configured to surround at least a portion of the coil holder 110. The housing 210 may accommodate at least a portion of the coil holder 110. The housing 210 may be disposed within a cover 600. The housing 210 may be disposed between the cover 600 and the coil holder 110. The housing 210 may be formed of a material different from that of the cover 600. The housing 210 may be formed of an insulating material. The housing 210 may be formed of an injection-molded product. The outer surface of the housing 210 may be spaced apart from the inner surface of the side plate 620 of the cover 600. The housing 210 may be movable through the separation space between the housing 210 and the cover 600 for OIS driving. A magnet 220 may be disposed within the housing 210. The housing 210 and the magnet 220 may be joined by an adhesive. An upper elastic member 410 may be attached to the upper portion or upper surface of the housing 210. The lower elastic member 420 can be attached to the upper portion or lower surface of the housing 210. The housing 210 can be attached to the elastic member 400 by heat fusion and / or adhesive. The adhesive connecting the housing 210 and the magnet 220, as well as the housing 210 and the elastic member 400, can be an epoxy resin cured by at least one of ultraviolet (UV), heat, and laser.

[0076] The lens driving device may include a magnet 220. The magnet 220 may be disposed within a housing 210. The magnet 220 may be fixed to the housing 210 by adhesive. The magnet 220 may be arranged between the coil holder 110 and the housing 210. The magnet 220 may face the first coil 120. The magnet 220 may electromagnetically interact with the first coil 120. The magnet 220 may face the second coil 331. The magnet 220 may electromagnetically interact with the second coil 331. The magnet 220 may be used in both AF driving and OIS driving. The magnet 220 may be disposed on the side of the housing 210. In this case, the magnet 220 may be a flat magnet with a plate shape. As a modified embodiment, the magnet 220 may be disposed at a corner portion of the housing 210. In this case, the magnet 220 may be a corner magnet with a hexahedral shape having an inner surface wider than an outer surface.

[0077] The lens driving device may include a fixing member 300. The fixing member 300 may be disposed below the first moving member 200 and the second moving member 200. The fixing member 300 may movably support the second moving member 200. The fixing member 300 may move the second moving member 200. At this time, the first moving member 100 may also move together with the second moving member 200.

[0078] The lens driving device may include a base 310. The base 310 may be disposed below the housing 210. The base 310 may be disposed below the coil holder 110. The base 310 may be disposed below the first substrate 320. The base 310 may be spaced apart from the housing 210. The base 310 may be connected to the cover 600. The base 310 may be disposed on a printed circuit board.

[0079] The base 310 may include lateral surfaces. The lateral surfaces of the base 310 may include multiple lateral surfaces. These multiple lateral surfaces may include a fifth lateral surface 310a, a sixth lateral surface 310b disposed opposite to the fifth lateral surface 310a, a seventh lateral surface 310c disposed opposite to each other between the fifth lateral surface 310a and the sixth lateral surface 310b, and an eighth lateral surface 310d. The base 310 may include four lateral surfaces and four corner portions disposed between the four lateral surfaces. A seventh groove 310e may be formed at the corner portion of the base 310. The seventh groove 310e of the base 310 may have a shape to avoid the second conductive member 800, which connects the first substrate 320 and the support member 500. That is, the base 310 may have a shape that allows the support member 500 and the second conductive member 800 to escape. Thus, the support member 500 can be seen when viewed from below the lens driving device. In this case, the support member 500 can be welded from below to the third terminal 325 of the first substrate 320.

[0080] The base 310 may include a second groove 311. The second groove 311 may be formed on the upper surface of the base 310. The second groove 311 may be formed at a position corresponding to one or more of the first terminal 324 and the second terminal 332. The second groove 311 may be formed at a position corresponding to the first terminal 324. The second groove 311 may be formed at a position corresponding to the second terminal 332. Solder balls connecting the first terminal 324 and the second terminal 332 may be disposed in the second groove 311. The first terminal 324 of the first substrate 320 and the second terminal 332 of the second substrate 330 are connected by soldering, and at least a portion of the solder may be disposed in the second groove 311 of the base 310. The second groove 311 may be disposed closer to the outer periphery of the base 310 than the first hole 312 of the base 310. The second groove 311 is disposed adjacent to the outer periphery of the base 310. Through this second groove 311, the first protruding portion 316, which is an internal component of the base 310, can serve as a mechanical guide when connecting the base 310 to the first substrate 320 and the second substrate 330. The second groove 311 can be a rectangular groove. The second groove 311 may include four grooves. The second groove 311 may be disposed adjacent to a corner portion of the base 310. The second groove 311 may be connected to the second protruding portion 318 forming the outer periphery.

[0081] The base 310 may include a first hole 312. The first hole 312 may be formed in the base 310 at a position corresponding to the hole in the coil holder 110 along the optical axis. Light passing through the lens connected to the coil holder 110 may pass through the first hole 312 in the base 310. The first hole 312 may include a through hole or an opening.

[0082] The base 310 may include a third groove 313. The third groove 313 may be formed in each of the fifth lateral surface 310a and the sixth lateral surface 310b of the base 310. The bent portion 326 of the first substrate 320 may be disposed in the first groove 313 of the base 310. The third groove 313 may be formed in a shape corresponding to the bent portion 326 of the first substrate 320. The recess depth of the third groove 313 may correspond to the thickness of the bent portion 326 of the first substrate 320. Alternatively, the recess depth of the third groove 313 may be less than the thickness of the bent portion 326 of the first substrate 320. Thus, the fourth terminal 327 formed in the bent portion 326 disposed in the third groove 313 of the first substrate 320 can be maintained in contact with the inner surface of the side plate 620 of the cover 600 without a separate adhesive.

[0083] The base 310 may include a fourth groove 314. The fourth groove 314 may be formed in each of the seventh lateral surface 310c and the eighth lateral surface 310d of the base 310. An extension 322 of the first substrate 320 may be disposed in the fourth groove 314 of the base 310. The fourth groove 314 may be formed in a shape corresponding to the extension 322 of the first substrate 320. The width of the fourth groove 314 in the horizontal direction may correspond to the width of the extension 322 of the first substrate 320 in the horizontal direction.

[0084] The base 310 may include an extension 314a. The extension 314a may support an extension 322 of the first substrate 320. The extension 322 of the first substrate 320 may be disposed along the outer surface of the extension 314a. The extension 314a may protrude from the lower surface of the base 310. The extension 314a may include a fourth groove 314. That is, the fourth groove 314 may be continuously formed on the lateral surface of the base 310 and the extension 314a.

[0085] The base 310 may include a second hole 315. The second hole 315 may be spaced apart from the second groove 311. A second Hall sensor 721 may be disposed in the second hole 315. The second hole 315 may be formed with a shape and size corresponding to the second Hall sensor 721. The second hole 315 may include a second-first hole for receiving a second-first Hall sensor 721-1, and a second-second hole for receiving a second-second Hall sensor 721-2. The second hole 315 may include a through hole or an opening.

[0086] The base 310 may include a first protrusion 316. The first protrusion 316 can be used as a 'protrusion'. The first protrusion 316 can extend from the upper surface of the base 310 along the inner peripheral surface of the first hole 312 of the base 310. That is, the first protrusion 316 can extend from the upper surface of the base 310 and form the inner peripheral surface of the base 310. The first protrusion 316 can be inserted into the third holes 328, 333 of the first substrate 320 and the second substrate 330. Thus, the first protrusion 316 of the base 310 can be used as a mechanical guide when the first substrate 320 and the second substrate 330 are assembled. That is, by means of the corresponding shape of the first protrusion 316 of the base 310 and the first substrate 320 and the second substrate 330, the first substrate 320 and the second substrate 330 can be assembled in place relative to the base 310. The first protrusion 316 may include a lug or a protrusion.

[0087] The base 310 may include a first protrusion 317. The first protrusion 317 can be used as a 'protrusion'. The first protrusion 317 can protrude outward from the first protrusion 316. The first protrusion 317 can protrude from the first protrusion 316 in a semi-circular shape. That is, the cross-sectional shape of the first protrusion 317 can be semi-circular. Three first protrusions 317 can be formed on the first protrusion 316. The first protrusions 317 can be inserted into the fifth grooves 329 and 334 of the first substrate 320 and the second substrate 330. Thus, the first protrusions 317 of the base 310 can be used as mechanical guides when the first substrate 320 and the second substrate 330 are assembled. In addition, rotation of the first substrate 320 and the second substrate 330 during assembly on the base 310 can be prevented.

[0088] The base 310 may include a second protrusion 318. The second protrusion 318 may extend from the upper surface of the base 310 along the outer peripheral surface of the base 310. That is, the second protrusion 318 may extend from the upper surface of the base 310 and form the outer peripheral surface of the base 310. The second protrusion 318 may form a stepped portion with the upper surface of the base 310. A second groove 311 may be disposed adjacent to the interior of the second protrusion 318.

[0089] The base 310 may include a second protrusion 319. The second protrusion 319 may be formed on the outer side surface of the base 310. The second protrusion 319 may be formed to protrude outward from the side surface of the base 310. The lower end of the side plate 620 of the cover 600 may be disposed on the upper surface of the second protrusion 319. The second protrusions 319 may be spaced apart from each other in a total of eight protrusions, with every two protrusions located on four side surfaces of the base 310.

[0090] The lens driving device may include a first substrate 320. The first substrate 320 may include a second substrate 330. However, the first substrate 320 may be described as a separate component of the second substrate 330. The first substrate 320 may be disposed on a base 310. The first substrate 320 may be disposed between the housing 210 and the base 310. A support member 500 may be coupled to the first substrate 320. The first substrate 320 may supply power to the second coil 331. The first substrate 320 may be coupled to the second substrate 330. The first substrate 320 may be coupled to the second coil 331. The first substrate 320 may be coupled to a printed circuit board disposed below the base 310. The first substrate 320 may include a flexible printed circuit board (FPCB). The first substrate 320 may be partially bent.

[0091] The first substrate 320 may include a body portion 321. The body portion 321 may be disposed on the upper surface of the base 310. The body portion 321 may be disposed between the base 310 and the second substrate 330. The body portion 321 may be formed to have dimensions corresponding to the second substrate 330. The body portion 321 may be coupled to the second substrate 330.

[0092] The first substrate 320 may include lateral surfaces. The first substrate 320 may include a plurality of lateral surfaces. The outer periphery of the body portion 321 of the first substrate 320 may include a first lateral surface 321a, a second lateral surface 321b disposed on the opposite side of the first lateral surface 321a, a third lateral surface 321c and a fourth lateral surface 321d disposed opposite to each other between the first lateral surface 321a and the second lateral surface 321b.

[0093] The first substrate 320 may include an extension portion 322. The extension portion 322 may extend from the body portion 321. The extension portion 322 may extend downward from the outer periphery or edge of the body portion 321. The extension portion 322 may be disposed on a lateral surface of the base 310. The extension portion 322 may be disposed in a fourth recess 314 formed on the side of the base 310. The extension portion 322 may be disposed on each of the third lateral surface 321c and the fourth lateral surface 321d. A plurality of terminals may be formed on the extension portion 322.

[0094] The first substrate 320 may have 16 terminals. Four of these 16 terminals are connected to the respective wires of the four wires of the support member 500, another four terminals are connected to the second coil 331, another seven terminals are connected to the second Hall sensor 721, and the remaining terminal may be connected to the cover member 600. The terminals connected to the four wires may be electrically connected to the substrate 711, on which the first Hall sensor 712 is disposed. Two of the four terminals connected to the second coil 331 may be connected to the second-first coil, and the other two terminals may be connected to the second-second coil arranged in a different direction from the second-first coil. Three of the seven terminals connected to the second Hall sensor 721 are connected to the second-first Hall sensor 721-1, the other three terminals are connected to the second-second Hall sensor 721-2, and the remaining terminal may be connected to both the second-first Hall sensor 721-1 and the second-second Hall sensor 721-2. That is, one of the seven terminals may be used together for both the second-first Hall sensor 721-1 and the second-second Hall sensor 721-2. More specifically, each of the second-first Hall sensor 721-1 and the second-second Hall sensor 721-2 is provided with a positive (+) input terminal, a negative (-) input terminal, a positive (+) output terminal, and a negative (-) output terminal. The negative (-) input terminal can be used together. The terminal connected to the cover 600 can be used as a grounding component of the cover 600. Multiple terminals of the first substrate 320 can be connected to a printed circuit board via conductive members.

[0095] The first substrate 320 may include a first groove 323. The first groove 323 may be formed on the outer periphery of the body portion 321 of the first substrate 320. The first groove 323 may be disposed at a position corresponding to the second terminal 332 of the second substrate 330. Thus, the first groove 323 may expose at least a portion of the second terminal 332 of the second substrate 330 downward. That is, the first groove 323 may provide an escape space so that a conductive member can contact the second terminal 332 of the second substrate 330. The first conductive member may be disposed in the first groove 323. The first groove 323 may be formed in a U-shape. The first groove 323 may be recessed from the lateral surface of the first substrate 320 into the portion in which the inner end of the second terminal 332 of the second substrate 330 is formed.

[0096] The first groove 323 may include multiple grooves. Specifically, the first groove 323 may include four grooves. The first groove 323 may include: a first-first groove 323-1 and a first-second groove 323-2, which are recessed from the first lateral surface 321a of the body portion 321 of the first substrate 320 and spaced apart from each other; a first-third groove 323-3 and a first-fourth groove 323-4, which are recessed from the second lateral surface 321b of the body portion 321 of the first substrate 320 and spaced apart from each other. The first-first groove 323-1 to the first-fourth groove 323-4 may be symmetrical with respect to an optical axis corresponding to the central axis of the first substrate 320.

[0097] The first substrate 320 may include a first terminal 324. The first terminal 324 may extend from the first recess 323. The first terminal 324 may extend along the lower surface of the first substrate 320. A second terminal 332 of the second substrate 330 is formed on the lower surface of the second substrate 330, and a first terminal 324 of the first substrate 320 is formed on the lower surface of the first substrate 320. Despite the different heights, the first terminal 324 and the second terminal 332 may be continuously arranged when viewed from below the first substrate 320. With this structure, the first terminal 324 and the second terminal 332 may be connected by a first conductive member disposed in the first recess 323. The first terminal 324 may have a rectangular shape. The first terminal 324 may extend only to one side of the first recess 323 and may not be disposed on the opposite side. That is, the first terminal 324 may be formed only in a portion of the first recess 323. In this embodiment, the first terminal 324 may be configured to surround only a portion of the first recess 323 rather than the entire first recess 323. However, in a modified embodiment, the first terminal 324 may be configured to surround the entire first recess 323. The first terminal 324 can be formed of a conductive material. Additionally, the terminals other than the first terminal 324 can also be formed of a conductive material.

[0098] In this embodiment, the first terminal 324 of the first substrate 320 may include four terminals. Two of the four terminals are disposed adjacent to the first lateral surface 321a of the body portion 321 of the first substrate 320, and the remaining two terminals may be disposed adjacent to the second lateral surface 321b of the body portion 321 of the first substrate 320. Therefore, since the first terminal 324, which does not serve as a solder terminal, is located on the side of the extension portion 322 where the terminals are arranged, the solderability between the lens drive device and the printed circuit board of the camera module can be ensured by increasing the width or spacing of the extension portion 322, even if the number of terminals provided in the extension portion 322 increases.

[0099] The first terminal 324 may include multiple terminals. The first terminal 324 may include four terminals. Two of the four terminals of the first terminal 324 are electrically connected to the second-first coil, and the other two terminals may be electrically connected to the second-second coil disposed in a direction different from that of the second-first coil. The first terminal 324 of the first substrate 320 may include a first-first terminal 324-1 extending from a first-first groove 323-1, a first-second terminal 324-2 extending from a first-second groove 323-2, a first-third terminal 324-3 extending from a first-third groove 323-3, and a first-fourth terminal 324-4 extending from a first-fourth groove 323-4. In this case, the first-first terminals 324-1 to the first-fourth terminals 324-4 may be spaced apart from each other. The first-first terminals 324-1 to the first-fourth terminals 324-4 may be symmetrical with respect to an optical axis corresponding to the central axis of the first substrate 320. The first terminal 324-1 extends from the first groove 323-1 toward the first second groove 323-2, the first second terminal 324-2 extends from the first second groove 323-2 toward the first first groove 323-1, the first third terminal 324-3 extends from the first third groove 323-3 toward the first fourth groove 323-4, and the first fourth terminal 324-4 can extend from the first fourth groove 323-4 toward the first third terminal 324-3. In this embodiment, the first terminal 324-1 and the first second terminal 324-2 can be disposed between the third terminal 325-1 and the third second terminal 325-2.

[0100] The first substrate 320 may include a third terminal 325. The third terminal 325 may be formed on the lower surface of the first substrate 320. The third terminal 325 may be connected to the support member 500. The third terminal 325 may be electrically connected to the support member 500 via the second conductive member 800. The third terminal 325 may be formed in a circular shape. The diameter of the third terminal 325 may be larger than the diameter of the second conductive member 800. In this embodiment, the wires of the support member 500 may be soldered to the third terminal 325 of the first substrate 320. In other words, the lower end of the wire is connected to the lower surface of the first substrate 320, and in this case, compared with the case where the wire is connected to the upper surface of the second substrate 330 or the first substrate 320, it is advantageous to ensure the length of the wire.

[0101] The third terminal 325 may include multiple terminals. The third terminal 325 may include four terminals. The third terminal 325 may include third-first terminals 325-1 to third-fourth terminals 325-4, which are respectively connected to four wires connected to the support member 500. Compared to the second lateral surface 321b of the first substrate 320, the third-first terminals 325-1 and third-second terminals 325-2 may be disposed closer to the first lateral surface 321a of the first substrate 320. Compared to the first lateral surface 321a of the first substrate 320, the third-third terminals 325-3 and third-fourth terminals 325-4 may be disposed closer to the second lateral surface 321b of the first substrate 320.

[0102] The first substrate 320 may include a bent portion 326. The bent portion 326 may extend from each of the first lateral surface 321a and the second lateral surface 321b of the first substrate 320. The bent portion 326 may be disposed in a third recess 313 of the base 310. The bent portion 326 may extend downward from the outer periphery or edge of the body portion 321. The bent portion 326 may be formed to be shorter than the extended portion 322.

[0103] The first substrate 320 may include a fourth terminal 327. The fourth terminal 327 may be disposed on the outer surface of the bent portion 326. The fourth terminal 327 may contact the inner surface of the side plate 620 of the cover 600. Thus, the fourth terminal 327 and the side plate 620 of the cover 600 may be electrically connected.

[0104] The first substrate 320 may include a third hole 328. The third hole 328 may correspond to the first protrusion 316 of the base 310. The diameter of the third hole 328 may correspond to the diameter of the first protrusion 316 of the base 310. Thus, the first substrate 320 can be positioned correctly on the base 310. The first protrusion 316 of the base 310 can be inserted into the third hole 328 of the first substrate 320 in the correct position. The third hole 328 may include a through hole or an opening. Light passing through the lens can move through the third hole 328.

[0105] The first substrate 320 may include a fifth groove 329. The fifth groove 329 may be formed in a shape corresponding to the first protrusion 317 at a position on the inner peripheral surface of the third hole 328. The fifth groove 329 may be formed in a semi-circular shape. The first protrusion 317 of the base 310 may be inserted into the fifth groove 329.

[0106] The lens driving device may include a second substrate 330. The second substrate 330 may be disposed on the upper surface of the body portion 321 of the first substrate 320. The second substrate 330 may be disposed between the magnet 220 and the base 310. The second substrate 330 may include circuit components. The second substrate 330 may include a fine patterned coil (FP coil). The second substrate 330 may be a component in which the FP coil is formed on an FPCB.

[0107] The second substrate 330 may include a second coil 331. The second coil 331 may be an 'OIS drive coil' for OIS driving. The second coil 331 may face the magnet 220. The second coil 331 may interact electromagnetically with the magnet 220. In this case, when current is supplied to the second coil 331 and a magnetic field is formed around the second coil 331, the magnet 220 may move relative to the second coil 331 due to the electromagnetic interaction between the second coil 331 and the magnet 220. The second coil 331 may cause the housing 210 and the coil holder 110 to move relative to the base 310 in a direction perpendicular to the optical axis through the electromagnetic interaction with the magnet 220. The second coil 331 may be a finely patterned coil (FP coil) integrally formed on the second substrate 330.

[0108] The second substrate 330 may include a second terminal 332. The second terminal 332 may be disposed on the lower surface of the second substrate 330. The second terminal 332 may be connected to a first terminal 324 of the first substrate 320 via a first conductive member. The second terminal 332 may be exposed via a first recess 323 of the first substrate 320.

[0109] The second terminal 332 may include multiple terminals. The second terminal 332 may include four terminals. Two of the four terminals of the second terminal 332 are electrically connected to the second-first coil, and the other two terminals may be electrically connected to a second-second coil disposed in a different direction from the second-first coil. The second terminal 332 may include a second-first terminal 332-1 connected to the first-first terminal 324-1, a second-second terminal 332-2 connected to the first-second terminal 324-2, a second-third terminal 332-3 connected to the first-third terminal 324-3, and a second-fourth terminal 332-4 connected to the first-fourth terminal 324-4. The second-first terminals to the second-fourth terminals may be spaced apart from each other. The second-first terminals to the second-fourth terminals 332-1, 332-2, 332-3, and 332-4 may be symmetrical with respect to an optical axis corresponding to the central axis of the second substrate 330.

[0110] The second substrate 330 may include a third hole 333. The third hole 333 of the second substrate 330 may be formed to a size and shape corresponding to the third hole 328 of the first substrate 320. The third hole 333 may correspond to the first protrusion 316 of the base 310. The diameter of the third hole 333 may correspond to the diameter of the first protrusion 316 of the base 310. Thus, the second substrate 330 can be positioned correctly on the base 310. The first protrusion 316 of the base 310 can be inserted into the third hole 333 of the second substrate 330 in the correct position. The third hole 333 may include a through hole or an opening. Light passing through the lens can move through the third hole 333.

[0111] The second substrate 330 may include a fifth groove 334. The fifth groove 334 of the second substrate 330 may be formed to a size and shape corresponding to the fifth groove 329 of the first substrate 320. The fifth groove 334 may be formed at a position on the inner peripheral surface of the third hole 333 corresponding to the first protrusion 317, and in a shape corresponding to the first protrusion 317. The fifth groove 334 may be formed in a semi-circular shape. The first protrusion 317 of the base 310 may be inserted into the fifth groove 334.

[0112] The second substrate 330 may include a sixth groove 335. The sixth groove 335 may be formed by recessing from the outer periphery of the second substrate 330. The sixth groove 335 may be formed such that it does not interfere with the support member 500. The second substrate 330 may not contact the support member 500 through the sixth groove 335.

[0113] In this embodiment, the first substrate 320 and the second substrate 330 are first welded together, and then the connecting body of the first substrate 320 and the second substrate 330 can be assembled to the base 310.

[0114] The lens drive device may include an elastic member 400. The elastic member 400 may be coupled to the coil holder 110 and the housing 210. The elastic member 400 may elastically support the coil holder 110. The elastic member 400 may be at least partially elastic. The elastic member 400 may support the coil holder 110 in a movable manner. The elastic member 400 may support the movement of the coil holder 110 during AF (AF-driven) operation. In this case, the elastic member 400 may be referred to as an 'AF support member'.

[0115] The lens driving device may include an upper elastic member 410. The upper elastic member 410 may be connected to the upper portion or upper surface of the coil holder 110 and the upper portion or upper surface of the housing 210. The upper elastic member 410 may be connected to the support member 500. The upper elastic member 410 may be formed of a leaf spring.

[0116] The upper elastic member 410 may include a plurality of upper elastic units. The upper elastic member 410 may include four upper elastic units. The upper elastic member 410 may include first upper elastic units to fourth upper elastic units 410a, 410b, 410c, and 410d spaced apart from each other. The first upper elastic unit 410a is connected to the first terminal of the first wire and the substrate 711, the second upper elastic unit 410b is connected to the second terminal of the second wire and the substrate 711, the third upper elastic unit 410c may be connected to the third terminal of the third wire and the substrate 711, and the fourth upper elastic unit 410d may be connected to the fourth terminal of the fourth wire and the substrate 711.

[0117] The upper elastic member 410 includes: an outer portion 411 connected to the upper portion or upper surface of the housing 210; an inner portion 412 connected to the upper portion or upper surface of the coil holder 110; a connecting portion 413 for connecting the outer portion 411 and the inner portion 412; a terminal portion 414 connected to a terminal of the substrate 711; and a connecting portion 415 connected to the support member 500.

[0118] The lens driving device may include a lower elastic member 420. The lower elastic member 420 may be connected to the lower portion or lower surface of the coil holder 110 and the lower portion or lower surface of the housing 210. The lower elastic member 420 may be formed of a leaf spring.

[0119] The lower elastic member 420 may include a plurality of lower elastic units. The lower elastic member 420 may include two lower elastic units. The lower elastic member 420 may include a first lower elastic unit to a second lower elastic unit 420a, 420b spaced apart from each other. The first lower elastic unit 420a is connected to one end portion of the first coil 120 and the fifth terminal of the substrate 711, and the second lower elastic unit 420b may be connected to the other end portion of the first coil 120 and the sixth terminal of the substrate 711.

[0120] The lower elastic member 420 may include: an outer portion 421 connected to the lower portion or lower surface of the housing 210; an inner portion 422 connected to the lower portion or lower surface of the coil holder 110; a connecting portion 423 connecting the outer portion 421 and the inner portion 422; a first connecting portion 424 connected to the first coil 120; and a second connecting portion 425 connected to the substrate 711.

[0121] The lens driving device may include a support member 500. The support member 500 may be coupled to the upper elastic member 410 and the body portion 321 of the first substrate 320. Alternatively, as a modified embodiment, the support member 500 may be coupled to the second substrate 330. The support member 500 may movably support the housing 210. The support member 500 may elastically support the housing 210. The support member 500 may be at least partially elastic. The support member 500 may support the movement of the housing 210 and the coil holder 110 during OIS driving. In this case, the support member 500 may be referred to as an 'OIS support member'. The support member 500 may include an elastic member. The support member 500 may be formed of wire. The support member 500 may be formed of a wire spring. As a modified embodiment, the support member 500 may be formed of a leaf spring.

[0122] The support member 500 may include multiple wires. The support member 500 may include four wires. The support member 500 may include first to fourth wires spaced apart from each other. The first wire connects the third-first terminal 325-1 of the first substrate 320 to the first upper elastic unit 410a; the second wire connects the third-second terminal 325-2 of the first substrate 320 to the second upper elastic unit 410b; the third wire connects the third-third terminal 325-3 of the first substrate 320 to the third upper elastic unit 410c; and the fourth wire connects the third-fourth terminal 325-4 of the first substrate 320 to the fourth upper elastic unit 410d. The wires may be connected to either the first substrate 320 or the second substrate 330.

[0123] The lens driving device may include a cover 600. The cover 600 may include a "cover". The cover 600 may be configured to surround at least a portion of the housing 210. The cover 600 may be coupled to the base 430. The cover 600 may house the housing 210 within the cover 600. The cover 600 may form the appearance of the lens driving device. The cover 600 may have a hexahedral shape with an open bottom surface. The cover 600 may be made of a non-magnetic material. The cover 600 may be formed of a metallic material. The cover 600 may be formed of a metal plate. The cover 600 may be connected to a fourth terminal 327 of the first substrate 320. Thus, the cover 600 may be grounded. The cover 600 may block electromagnetic interference (EMI). In this case, the cover 600 may be referred to as an "EMI shield".

[0124] The cover 600 may include an upper plate 610 and a side plate 620. The cover 600 may include an upper plate 610 disposed on the coil holder 110 and a side plate 620 extending downward from the outer periphery or edge of the upper plate 610. The upper plate 610 of the cover 600 may include holes or openings. The side plate 620 of the cover 600 may be attached to the base 310. The lower end of the side plate 620 of the cover 600 may be disposed on a second protrusion 319 of the base 430. The inner surface of the side plate 620 of the cover 600 may be fixed to the base 430 by adhesive.

[0125] The lens driving device may include a substrate 711. The substrate 711 may be disposed on the housing 210. A first Hall sensor 712 may be disposed on the inner surface of the substrate 711. Multiple terminals may be disposed on the outer surface of the substrate 711. The multiple terminals of the substrate 711 may include six terminals. Four of the six terminals of the substrate 711 may include a first terminal to a fourth terminal, and the first terminal to the fourth terminal are respectively connected to a first upper elastic unit to a fourth upper elastic unit 410a, 410b, 410c, and 410d. The remaining two terminals of the substrate 711 include a fifth terminal and a sixth terminal, and the fifth terminal and the sixth terminal may be respectively connected to a first lower elastic unit and a second lower elastic unit 420a and 420b.

[0126] The lens driving device may include a first Hall sensor 712. The first Hall sensor 712 may include a Hall sensor that senses the magnetic force of a magnet. The first Hall sensor 712 may be a Hall sensor integrated with a driver IC, in which a driver is embedded to control the current applied to the first coil 120. The first Hall sensor 712 may be electrically connected to the first coil 120. The first Hall sensor 712 may detect a first magnet 713 disposed on a coil holder 110. The first Hall sensor 712 performs an AF function by controlling the current applied to the first coil 120, and simultaneously performs feedback control on the first coil 120 by determining the position of the coil holder 110 via the magnetic force detection of the first magnet 713. The first Hall sensor 712 may include multiple terminals. The first Hall sensor 712 may include six terminals. Four of the six terminals of the first Hall sensor 712 are connected to the outside via an upper elastic member 410, a support member 500, and a first substrate 320, and the remaining two terminals are connected to the first coil 120 via a lower elastic member 420.

[0127] The lens driving device may include a first magnet 713. The first magnet 713 may be a 'sensing magnet'. The first magnet 713 may be disposed on the coil holder 110. The first magnet 713 may be detected by a first Hall sensor 712. The first magnet 713 may face the first Hall sensor 712. The first magnet 713 may be disposed at a corner of the coil holder 110. That is, the first magnet 713 may be disposed facing the corner of the housing 210.

[0128] The lens driving device may include a second magnet 714. The second magnet 714 may be a 'compensating magnet'. The second magnet 714 may be disposed on the coil holder 110. The second magnet 714 may be configured to balance the magnetic force together with the first magnet 713. The second magnet 714 may be symmetrical with the first magnet 713 about the optical axis. The second magnet 714 may be disposed around the optical axis at a position corresponding to the first magnet 713. The second magnet 714 may have a size and / or shape around the optical axis corresponding to the first magnet 713. The first magnet 713 may be disposed on one side of the coil holder 110, and the second magnet 714 may be disposed on the other side of the coil holder 110. The second magnet 714 may be disposed at a corner of the coil holder 110. That is, the second magnet 714 may be disposed facing the corner of the housing 210.

[0129] The lens driving device may include a second Hall sensor 721. The second Hall sensor 721 can be used as a 'Hall sensor'. The second Hall sensor 721 may be disposed on the lower surface of the first substrate 320. The second Hall sensor 721 may be disposed in the second hole 315 of the base 310. The second Hall sensor 721 can detect the magnetic force of the magnet 220. The Hall value measured by the second Hall sensor 721 can be used for OIS feedback control. The second Hall sensor 721 may include: a second-first Hall sensor 721-1, which detects the magnetic force of a magnet disposed along the x-axis direction in the magnet 220; and a second-second Hall sensor 721-2, which senses the magnetic force of a magnet disposed along the y-axis direction.

[0130] The lens driving device may include a conductive component. The conductive component can be used to electrically connect two or more components. The conductive component may include at least one of solder balls and Ag epoxy resin.

[0131] The conductive member may include a first conductive member that connects the first terminal 324 of the first substrate 320 and the second terminal 332 of the second substrate 330. The term 'first conductive member' can be used interchangeably with 'conductive member'. At least a portion of the first conductive member may be disposed in the second recess 311 of the base 310. The first conductive member can be accommodated in the second recess 311 of the base 310. This minimizes the phenomenon of the first substrate 320 and the second substrate 330 being lifted by the first conductive member.

[0132] The conductive component may include a second conductive component 800, which connects the wire and the first substrate 320. The conductive component may be used to connect terminals of an extension 322 of the first substrate 320 to a printed circuit board. The conductive component may be used to connect the first substrate 320 and the support component 500. The conductive component may be used to connect a first terminal 324 of the first substrate 320 and a second terminal 332 of the second substrate 330. The conductive component may be used to connect the support component 500 and the upper elastic component 410. The conductive component may be used to connect the upper elastic component 410 and the substrate 711. The conductive component may be used to connect the first coil 120 and the lower elastic component 420. The conductive component may be used to connect the lower elastic component 420 and the substrate 711.

[0133] The lens drive device may include a damper (not shown). The damper may be disposed on the support member 500. The damper may be disposed on the support member 500 and the housing 210. The damper may be disposed on the elastic member 400. The damper may be disposed on the elastic member 400 and the coil frame 110 and / or the elastic member 400 and the housing 210. The damper may be disposed on the elastic member 400 and / or the support member 500 to prevent resonance from occurring in the elastic member 400 and / or the support member 500.

[0134] In the following description, the configuration of the lens driving device according to the modified embodiment will be described with reference to the accompanying drawings.

[0135] Figure 12 This is a bottom view of some components of the lens driving device according to a modified embodiment, and Figure 13 This is a perspective view of the base of the lens driving device according to a modified embodiment.

[0136] In the lens driving device according to the modified embodiment, compared with this embodiment, the position of the solder joint connecting the first substrate 320 and the second substrate 330 can be set closer together to improve the processability of solder coating. Hereinafter, the modified embodiment will be described focusing on the differences from this embodiment. That is, the description in this embodiment can be similarly applied to configurations of modified embodiments that have not been described.

[0137] The lens driving device according to the modified embodiment may include a first groove 323a on a first substrate 320. The first groove 323a may be formed on the outer periphery of the body portion 321 of the first substrate 320. The first groove 323a may be disposed at a position corresponding to the second terminal 332a of the second substrate 330. Thus, the first groove 323a allows at least a portion of the second terminal 332a of the second substrate 330 to be exposed downwards. That is, the first groove 323a provides an escape space so that a conductive member can contact the second terminal 332a of the second substrate 330. A first conductive member may be disposed in the first groove 323a. The first groove 323a may be formed in a semi-circular shape. Alternatively, the first groove 323a may be formed in a U-shape. The first groove 323a may be recessed from the lateral surface of the first substrate 320 into the portion where the end portion of the inner side of the second terminal 332a of the second substrate 330 is formed.

[0138] The first groove 323a may include multiple grooves. Specifically, the first groove 323a may include four grooves. The first groove 323a may include: a first-first groove and a first-second groove, which are formed by recesses into the first lateral surface 321a of the body portion 321 of the first substrate 320 and are spaced apart from each other; and a first-third groove and a first-fourth groove, which are formed by recesses into the second lateral surface 321b of the body portion 321 of the first substrate 320 and are spaced apart from each other. The first-first groove to the first-fourth groove may be symmetrical with respect to an optical axis corresponding to the central axis of the first substrate 320. Furthermore, the first-first groove and the first-second groove may be arranged adjacent to each other, and the first-third groove and the first-fourth groove may be arranged adjacent to each other. Therefore, compared to this embodiment, the processability of solder application can be improved.

[0139] The lens driving device according to the modified embodiment may include a first terminal 324a of a first substrate 320. The first terminal 324a may extend from a first recess 323a. The first terminal 324a may extend along the lower surface of the first substrate 320. Although a second terminal 332a of a second substrate 330 is formed on the lower surface of the second substrate 330, and a first terminal 324a of the first substrate 320 is formed on the lower surface of the first substrate 320, thus having a height difference, the first terminal 324a and the second terminal 332a may be continuously arranged when viewed from the bottom of the first substrate 320. With this structure, the first terminal 324a and the second terminal 332a may be connected by a first conductive member disposed in the first recess 323a. The first terminal 324a may have a semi-circular shape. The first terminal 324a may be formed over the entire circumference of the first recess 323. The first terminal 324a may be formed of a conductive material.

[0140] The lens driving device according to the modified embodiment may include a second terminal 332a of a second substrate 330. The second terminal 332a may be disposed on the lower surface of the second substrate 330. The second terminal 332a may be connected to a first terminal 324a of the first substrate 320 via a first conductive member. The second terminal 332a may be exposed via a first recess 323a of the first substrate 320.

[0141] The lens driving device according to the modified embodiment may include a second groove 311a of the base 310. The second groove 311a may be formed on the upper surface of the base 310. The second groove 311a may be formed at a position corresponding to one or more of the first terminal 324a and the second terminal 332a. Solder balls connecting the first terminal 324a and the second terminal 332a may be disposed in the second groove 311a. The first terminal 324a of the first substrate 320 and the second terminal 332a of the second substrate 330 are connected by soldering, and at least a portion of the solder may be disposed in the second groove 311a of the base 310. The second groove 311a may be disposed closer to the outer periphery of the base 310 than the first hole 312 of the base 310. The second groove 311a is disposed adjacent to the outer periphery of the base 310. Through this second groove 311a, the first protruding portion 316, which is part of the internal configuration of the base 310, can serve as a mechanical guide when connecting the base 310 to the first substrate 320 and the second substrate 330. The second groove 311a can be a rectangular groove. The second groove 311a can include two grooves. Compared to this embodiment, in a modified embodiment, it is conceivable that the two second grooves are formed as a single second groove. Two types of solder can be accommodated in each of the two second grooves. The second groove 311 can be connected to the second protruding portion 318 forming the outer periphery.

[0142] In the lens driving device according to the modified embodiment, the second Hall sensor 721a can be disposed along the diagonal direction of the first substrate 320. Therefore, the second hole 315a of the base 310 for receiving the second Hall sensor 721a can also be disposed along the diagonal direction of the base 310.

[0143] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, it should be understood that the above embodiments are illustrative in all respects and not restrictive.

Claims

1. A lens driving device, comprising: Base; A cover, the cover being disposed on the base and including side panels; A coil frame, which is disposed within the cover; A housing disposed between the cover and the coil frame; A first coil, the first coil being disposed on the coil frame; A magnet, which is disposed on the housing; A first substrate is disposed on the base; as well as A second substrate is disposed on the first substrate, and the second substrate includes a second coil. The first substrate includes a body portion disposed on the upper surface of the base, a curved portion bending from the body portion, and a fourth terminal disposed on the outer surface of the curved portion. Wherein, the fourth terminal of the first substrate is in contact with the inner surface of the side plate of the cover member. The first substrate includes a first groove formed on the body portion and a first terminal formed on the lower surface of the body portion and adjacent to the first groove. The second substrate includes a second terminal formed on the lower surface of the second substrate and disposed at a position corresponding to the first groove of the first substrate. The conductive component electrically connects the first terminal of the first substrate and the second terminal of the second substrate.

2. The lens driving device according to claim 1, wherein, The first substrate includes an extension bent from the body portion and including a plurality of terminals. The first groove is recessed inward from the lateral surface of the body portion of the first substrate to a position corresponding to the inner end of the second terminal, thereby exposing the second terminal. The first terminal is disposed adjacent to only one side of the first groove.

3. The lens driving device according to claim 2, wherein, The body portion of the first substrate includes a first lateral surface and a second lateral surface opposite to each other, and a third lateral surface and a fourth lateral surface opposite to each other. Wherein, the extension portion of the first substrate is formed on each of the third lateral surface and the fourth lateral surface of the body portion, and The curved portion of the first substrate is formed on the first lateral surface of the body portion.

4. The lens driving device according to claim 1, wherein, The base includes a second groove formed on the upper surface of the base and at a position corresponding to the first terminal.

5. The lens driving device according to claim 4, wherein, At least a portion of the conductive member is disposed on the second groove of the base.

6. The lens driving device according to claim 4, wherein, The first groove of the first substrate is formed on the outer periphery of the body portion. The coil frame includes a hole formed along the optical axis. The base includes a first hole, which is formed along the optical axis at a position corresponding to the hole in the coil frame. In this configuration, compared to the first hole in the base, the second groove in the base is positioned closer to the outer periphery of the base.

7. The lens driving device according to claim 3, wherein, The first groove of the first substrate includes: a first-first groove and a first-second groove, the first-first groove and the first-second groove being formed by recessing from the first lateral surface of the body portion of the first substrate and spaced apart from each other; and a first-third groove and a first-fourth groove, the first-third groove and the first-fourth groove being formed by recessing from the second lateral surface of the body portion of the first substrate and spaced apart from each other.

8. The lens driving device according to claim 7, wherein, The first terminal of the first substrate includes four terminals. Wherein, two of the four terminals of the first terminal are disposed adjacent to the first lateral surface, and the other two of the four terminals of the first terminal are disposed adjacent to the second lateral surface. Wherein, the four terminals of the first terminal of the first substrate include a first-first terminal extending from the first-first groove, a first-second terminal extending from the first-second groove, a first-third terminal extending from the first-third groove, and a first-fourth terminal extending from the first-fourth groove, and Wherein, the first-first terminal extends from the first-first groove toward the first-second groove, the first-second terminal extends from the first-second groove toward the first-first groove, the first-third terminal extends from the first-third groove toward the first-fourth groove, and the first-fourth terminal extends from the first-fourth groove toward the first-third groove.

9. The lens driving device according to claim 8, comprising: An upper elastic member is connected to the upper portion of the coil frame and the upper portion of the housing; as well as A support member, which is connected to the upper elastic member and the body portion of the first substrate.

10. The lens driving device according to claim 9, wherein, The first terminal of the first substrate extends along the lower surface of the first substrate. The first substrate includes a third terminal formed on the lower surface of the first substrate and connected to the support member. The support component includes four wires. The third terminal of the first substrate includes a third-first terminal, a third-second terminal, a third-third terminal, and a third-fourth terminal respectively connected to the four wires. Wherein, compared to the second lateral surface of the first substrate, the third-first terminal and the third-second terminal are configured to be closer to the first lateral surface, and The first terminal and the first second terminal are disposed between the third terminal and the third second terminal.

11. The lens driving device according to claim 2, wherein, The cover is made of metal. The base includes a fifth lateral surface and a sixth lateral surface that are opposite to each other, and a seventh lateral surface and an eighth lateral surface that are opposite to each other. The base includes a third groove formed on the fifth lateral surface and a fourth groove formed on each of the seventh and eighth lateral surfaces. Wherein, the extended portion of the first substrate is disposed on the fourth groove of the base, and The bent portion of the first substrate is disposed on the third groove of the base.

12. The lens driving device according to claim 6, wherein, The base includes a protruding portion that protrudes from the upper surface of the base along the inner peripheral surface of the first hole in the base, and The protruding portion is inserted into the first substrate and the second substrate.

13. The lens driving device according to claim 12, wherein, The base includes a first protrusion projecting outward from the protruding portion. Each of the first substrate and the second substrate includes a fifth groove, the fifth groove having a shape corresponding to the shape of the first protrusion, and At least a portion of the first protrusion is disposed in the fifth groove.

14. The lens driving device according to claim 9, wherein, The second substrate includes a sixth groove recessed from the outer periphery of the second substrate, and The support member passes through the sixth groove of the second substrate.

15. The lens driving device according to claim 6, comprising a Hall sensor for sensing the magnet. in, The base includes a second hole spaced apart from the first hole and the second groove of the base, and At least a portion of the Hall sensor is disposed in the second hole of the base.

16. A lens driving device, comprising: Base; A cover element disposed on the base; A coil frame, which is disposed within the cover; A first coil, the first coil being disposed on the coil frame; A magnet, the magnet being disposed within the cover; A first substrate is disposed on the base; as well as A second substrate is disposed on the first substrate, and the second substrate includes a second coil. The cover is electrically connected to the first substrate. The first substrate includes a body portion disposed on the upper surface of the base, a curved portion bending from the body portion, and a fourth terminal disposed on the outer surface of the curved portion. The fourth terminal of the first substrate is in contact with the inner surface of the side plate of the cover. The first substrate includes a first groove formed on the body portion and a first terminal formed on the lower surface of the body portion and adjacent to the first groove. The second substrate includes a second terminal formed on the lower surface of the second substrate and disposed at a position corresponding to the first groove of the first substrate. The conductive component electrically connects the first terminal of the first substrate and the second terminal of the second substrate.

17. The lens driving device according to claim 16, wherein, The first substrate includes an extension bent from the body portion and including a plurality of terminals. The first groove is recessed inward from the lateral surface of the body portion of the first substrate to a position corresponding to the inner end of the second terminal, thereby exposing the second terminal. The first terminal is disposed adjacent to only one side of the first groove.

18. The lens driving device according to claim 17, wherein, The body portion of the first substrate includes a first lateral surface and a second lateral surface opposite to each other, and a third lateral surface and a fourth lateral surface opposite to each other. Wherein, the extension portion of the first substrate is formed on each of the third lateral surface and the fourth lateral surface of the body portion, and The curved portion of the first substrate is formed on the first lateral surface of the body portion.

19. A camera device, comprising: Printed circuit boards; An image sensor, the image sensor being disposed on the printed circuit board; The lens driving device according to any one of claims 1 to 18, wherein the lens driving device is disposed above the printed circuit board; as well as A lens, which is connected to the coil frame of the lens drive device.

20. An optical device, comprising: main body; The camera device according to claim 19, wherein the camera device is disposed on the main body; as well as A display, which is mounted on the main body and outputs images captured by the camera device.

Images