Lens driving device, camera module and optical device including the same
By introducing a buffer and foreign object adsorption unit into the lens moving device, the problems of lens damage under impact and stroke fluctuation are solved, the freedom of lens selection and AF drive reliability are improved, the defect rate of image sensor is reduced, and the freedom of retainer design is enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LG INNOTEK CO LTD
- Filing Date
- 2021-03-19
- Publication Date
- 2026-04-21
AI Technical Summary
Existing technologies struggle to effectively prevent lens damage under impact in ultra-compact, low-power camera modules, and also struggle to suppress fluctuations in lens travel range while simultaneously improving the freedom of lens selection and the reliability of AF drive.
The design incorporates a buffer system, including first and second buffers, which are positioned on the upper surfaces of the spool and base. The protrusion of the cover member and the recess of the spool enhance the buffering capacity of the lens moving device and prevent foreign objects from contaminating the image sensor through a foreign object adsorption part and a light blocking member.
It effectively prevents lens movement from being damaged by impact, suppresses stroke fluctuations, improves the freedom of lens selection and the reliability of AF drive, reduces the defect rate of image sensor, and enhances the freedom of retainer design.
Smart Images

Figure CN115668052B_ABST
Abstract
Description
Technical Field
[0001] The embodiments relate to a lens-mounted mobile device and a camera module and optical instruments that include the lens-mounted mobile device. Background Technology
[0002] Applying the voice coil motor (VCM) technology used in existing general-purpose camera modules to ultra-small, low-power camera modules is challenging, and therefore related research has been actively conducted.
[0003] The demand for and production of electronic products, such as mobile phones and smartphones equipped with cameras, has increased. Cameras used in mobile phones are trending towards increased resolution and miniaturization. As a result, actuators have also become smaller, with increased diameter and functionality. To achieve high-resolution cameras for mobile phones, it is necessary to improve the performance of cameras used in mobile phones and their additional functions, such as autofocus, image stabilization, and zoom. Summary of the Invention
[0004] Technical issues
[0005] The embodiments provide a lens moving device and a camera module and optical instruments including the lens moving device, which can prevent damage to the spool, cover member and base due to impact and suppress fluctuations in the travel range of the spool along the optical axis.
[0006] In addition, the embodiments provide camera modules and optical instruments that can increase the freedom of lens selection and improve the reliability of AF drive.
[0007] In addition, the embodiments provide camera modules and optical instruments that can reduce the defect rate of image sensors due to contamination caused by foreign objects, increase the design freedom of the retainer, and prevent the reduction of the connection force between the retainer and the base.
[0008] Technical solution
[0009] The lens moving device according to an embodiment includes: a cover member including an upper plate and a side plate connected to the upper plate; a housing disposed in the cover member; a spool disposed in the housing; a coil coupled to the spool; a magnet disposed on the housing, the magnet being opposite to the coil; a base disposed below the spool; and a first buffer disposed on the upper surface of the spool corresponding to or opposite to the upper plate of the cover member, wherein the cover member includes a boss extending in a direction from the upper plate to the spool, and the distance between the boss and the upper surface of the spool in the optical axis direction is equal to or less than the distance between the first buffer and the inner surface of the upper plate of the cover member in the optical axis direction.
[0010] The upper surface of the spool may include a first surface and a second surface, the second surface having a step formed together with the first surface along the optical axis, the second surface being positioned lower than the first surface, and a first buffer may be disposed on the second surface.
[0011] The spool may have a recess in its upper surface, at least a portion of the boss may be disposed in the recess, and the distance between the bottom of the recess and at least a portion of the boss along the optical axis may be equal to or less than the distance between the first buffer and the inner surface of the upper plate of the cover member along the optical axis.
[0012] The first surface may be provided with a recess, at least a portion of the boss may be provided in the recess, and the distance between the bottom of the recess and at least a portion of the boss along the optical axis may be equal to or less than the distance between the first buffer and the inner surface of the upper plate of the cover member along the optical axis.
[0013] The stiffness of the first buffer can be less than the stiffness of the cover member and the stiffness of the spool.
[0014] The lens moving device may include: a second buffer disposed on the upper surface of the base; a first stop disposed on the lower surface of the spool; and a second stop disposed on the upper surface of the base to correspond to or be opposite to the first stop along the optical axis direction, wherein the distance between the first stop and the second stop along the optical axis direction may be equal to or less than the distance between the second buffer and the lower surface of the spool along the optical axis direction.
[0015] The upper surface of the base may include a 1-1 surface and a 1-2 surface, the 1-2 surface having a step formed together with the 1-1 surface along the optical axis direction, the 1-2 surface being positioned lower than the 1-1 surface, and a second stop and a second buffer may be disposed on the 1-2 surface.
[0016] The stiffness of the second buffer can be less than the stiffness of the base and the stiffness of the spool.
[0017] According to another embodiment, a lens moving device includes: a cover member including an upper plate and a side plate connected to the upper plate; a housing disposed in the cover member; a spool disposed in the housing; a coil coupled to the spool; a magnet disposed on the housing, the magnet being opposite to the coil; a base disposed below the spool; and a buffer disposed on the upper surface of the spool corresponding to or opposite to the upper plate of the cover member, wherein the upper surface of the spool includes a first surface and a second surface, the second surface having a step formed together with the first surface along the optical axis direction, the second surface being positioned lower than the first surface, the spool including a recess recessed from the second surface, the cover member including a boss extending in the direction from the upper plate to the spool, at least a portion of the boss being disposed in the recess, and the buffer being disposed on the second surface.
[0018] According to another embodiment, the lens moving device includes: a cover member including an upper plate and a side plate connected to the upper plate; a housing disposed in the cover member; a spool disposed in the housing; a coil coupled to the spool; a magnet disposed on the housing, the magnet being opposite to the coil; a base disposed below the spool; and a buffer disposed on the upper plate of the cover member, wherein the upper surface of the spool includes a first surface and a second surface, the second surface having a step formed together with the first surface along the optical axis direction, the second surface being positioned lower than the first surface, and the buffer being opposite to the first surface along the optical axis direction.
[0019] The cover member may include a boss extending along the direction from the upper plate to the spool, and the distance between the boss and the upper surface of the spool along the optical axis may be equal to or less than the distance between the buffer and the first surface along the optical axis. The stiffness of the buffer may be less than the stiffness of the cover member and the stiffness of the spool.
[0020] The camera module according to an embodiment includes: a lens module configured to move along an optical axis; a holder disposed below the lens module, the holder including an opening and an inner surface formed by the opening; a filter disposed in the opening of the holder; an adhesive member disposed between the outer surface of the filter and the inner surface of the holder; and an image sensor disposed below the filter, wherein the inner surface of the holder includes a first surface and a second surface, the interior angle between the first surface and the second surface is an obtuse angle, and the adhesive member is disposed on the first surface and the second surface.
[0021] The filter may not overlap with the holder along the optical axis.
[0022] The first surface may be adjacent to or adjacent to the upper surface of the retainer, the second surface may be located between the first surface and the lower surface of the retainer, and the upper surface of the retainer may be the surface opposite to the lens module.
[0023] The adhesive component may include: a first portion disposed between a first surface and a first region of the outer surface of the filter; and a second portion disposed between a second surface and a second region of the outer surface of the filter.
[0024] The length of the first part of the adhesive component in the horizontal direction can be increased in the direction from the lower surface of the retainer to the upper surface of the retainer.
[0025] Based on the upper surface of the image sensor, the lower surface of the filter can be positioned at the same height as or above the lower surface of the holder, and can be positioned below the corner where the first and second surfaces connect.
[0026] Based on the upper surface of the image sensor, the upper surface of the filter can be positioned at the same height as or below the upper surface of the holder, and can be positioned above the corner where the first and second surfaces connect.
[0027] The outer surface of the filter can overlap with the first and second surfaces in a direction perpendicular to the optical axis.
[0028] The interior angle between the upper surface of the retainer and the first surface can be an obtuse angle, and the second surface can be perpendicular to the upper surface of the retainer.
[0029] The first surface may be adjacent to or adjacent to the lower surface of the holder, and the second surface may be positioned between the first surface and the upper surface of the holder. The upper surface of the holder may be the surface opposite to the lens module, and the lower surface of the holder may be the surface opposite to the upper surface of the holder. The filter may not overlap with the holder along the optical axis.
[0030] According to another embodiment, the camera module includes: a lens module configured to move along an optical axis; a holder disposed below the lens module, the holder having a recessed mounting portion from its upper surface; a filter disposed in the mounting portion of the holder; a foreign matter adsorption portion connected to the upper surface of the filter, the foreign matter adsorption portion being configured to adsorb foreign matter; and an image sensor disposed below the filter.
[0031] The mounting portion may include: a bottom surface; a side surface connected to the bottom surface; and an opening formed in the bottom surface. The filter may be disposed on the bottom surface of the mounting portion, and the foreign matter adsorption portion may overlap with the bottom surface of the mounting portion along the optical axis direction.
[0032] The foreign matter adsorption section can be formed to have a predetermined width on each side of the upper surface of the filter.
[0033] The foreign matter adsorption part can be provided in the edge region of the upper surface of the filter and can be configured as a light blocking component.
[0034] The foreign matter adsorption section may include multiple adsorption sections disposed on the upper surface of the filter in a spaced-apart manner.
[0035] It may include a light-blocking component disposed between the foreign matter adsorption part and the upper surface of the filter.
[0036] The foreign object adsorption section may include multiple adsorption sections disposed on the upper surface of the light blocking member in a spaced-apart manner.
[0037] The foreign object adsorption section may include: a first part configured to overlap with the light blocking member along the optical axis; and a second part configured not to overlap with the light blocking member along the optical axis.
[0038] The foreign object adsorption part and the light blocking component can be kept from overlapping with the effective area of the image sensor along the optical axis.
[0039] The camera module may include: a circuit board disposed below the image sensor; a terminal disposed adjacent to the image sensor on the circuit board; and a wire configured to connect the image sensor and the terminal to each other, wherein an adsorption member may overlap with at least one of the terminal and the wire along the optical axis.
[0040] Beneficial effects
[0041] According to an embodiment, a buffer is provided at the auxiliary impact point, which can prevent damage to the spool, cover member and base due to impact, and can suppress fluctuations in the travel range of the spool along the optical axis.
[0042] According to the embodiment, the retainer does not have a support portion that overlaps with the filter along the optical axis, thereby increasing the height margin of the camera module along the optical axis and preventing the distance between the image sensor and the lens module from decreasing, thus improving the freedom of lens selection.
[0043] In addition, according to the embodiment, the distance between the filter and the lens module can be sufficiently ensured, thereby suppressing the travel limitation of the lens moving device along the optical axis when the thickness of the filter is large, thus improving the reliability of AF drive.
[0044] According to an embodiment, the foreign matter adsorption section can be adjacent to the effective area of the image sensor to collect foreign matter, thereby reducing the defect rate of the image sensor caused by contamination from foreign matter. Furthermore, according to an embodiment, the area of the foreign matter collection section formed at the holder can be reduced, or a foreign matter collection section can be omitted from the holder, thereby increasing the design freedom of the holder. Additionally, according to an embodiment, the area of the upper surface of the holder on which the adhesive member is coated can be sufficiently ensured, thereby preventing a reduction in the connection force between the holder and the base. Attached Figure Description
[0045] Figure 1 This is a perspective view of the lens-mounted device according to an embodiment.
[0046] Figure 2 This is a connected view of the lens-mounted device with the cover component removed.
[0047] Figure 3a yes Figure 1 The upper 3D view of the spool shown.
[0048] Figure 3b This is a three-dimensional view of the upper part of the spool and the first buffer.
[0049] Figure 3c It is a three-dimensional view of the lower part of the spool and coil.
[0050] Figure 4a yes Figure 1 The three-dimensional view of the shell shown.
[0051] Figure 4b This is a view showing the connection between the casing and the magnet.
[0052] Figure 5 This is a three-dimensional view showing the separation of the lower elastic component and the base.
[0053] Figure 6a This is a three-dimensional view of the base and the second buffer.
[0054] Figure 6b The lower surface of the spool corresponding to the second buffer is shown.
[0055] Figure 7 It is a three-dimensional view of the connection between the base, the second buffer, and the lower elastic member.
[0056] Figure 8 It is a lens moving device along Figure 2 A cross-sectional view of direction AB.
[0057] Figure 9 It is a lens moving device along Figure 2 A cross-sectional view of the direction CD.
[0058] Figure 10 This is a cross-sectional view of a portion of the lens mobile device according to this embodiment.
[0059] Figure 11a This is a three-dimensional view of the lower part of the third buffer and cover components.
[0060] Figure 11b This is a partial cross-sectional view of the lens-mounted device.
[0061] Figure 12 This is an exploded perspective view of the camera module according to an embodiment.
[0062] Figure 13 This is a perspective view of a camera module according to another embodiment.
[0063] Figure 14 yes Figure 13 A 3D view showing the separation of the camera module.
[0064] Figure 15 It is the camera module along Figure 13 A cross-sectional view of direction AB.
[0065] Figure 16a This is a 3D diagram of the retainer.
[0066] Figure 16b It is the retainer edge Figure 16a A cross-sectional view of the direction CD.
[0067] Figure 17a This is a perspective view of the retainer and the first adhesive component.
[0068] Figure 17b The retainer and the first adhesive component are along Figure 17a A cross-sectional view of the direction CD.
[0069] Figure 17c This is a bottom-view perspective view of the retainer and filter.
[0070] Figure 18a It is a perspective view of the retainer, the first adhesive component, and the filter.
[0071] Figure 18b It is a cross-sectional view of the retainer, the first adhesive member, and the filter along direction CD.
[0072] Figure 19 This is a cross-sectional view of a portion of a camera module according to another embodiment.
[0073] Figure 20 yes Figure 19 An enlarged view of the dashed section.
[0074] Figure 21 The solder is shown as being configured to electrically connect the circuit board to the first and second terminals of the first and second lower elastic members.
[0075] Figure 22 This is a cross-sectional view of a portion of a camera module including a retainer according to another embodiment.
[0076] Figure 23 This is a plan view of a retainer according to another embodiment.
[0077] Figure 24 It is the retainer edge Figure 23 A sectional view of the direction EF.
[0078] Figure 25 This is a detached perspective view of a camera module according to another embodiment.
[0079] Figure 26 yes Figure 25 A 3D diagram showing the connection of the camera module.
[0080] Figure 27 yes Figure 25 A stereoscopic view of the lens-equipped mobile device.
[0081] Figure 28 It is the camera module along Figure 26 A cross-sectional view of direction AB.
[0082] Figure 29 yes Figure 25 A stereoscopic view of the separated image sensor unit.
[0083] Figure 30 yes Figure 29 A three-dimensional view showing the separation of the foreign matter adsorption section, filter, and retainer.
[0084] Figure 31 This is a 3D diagram of the retainer.
[0085] Figure 32 This is a three-dimensional view showing the connection of the retainer, filter, and foreign matter adsorption unit.
[0086] Figure 33 This is a bottom-view perspective of the retainer.
[0087] Figure 34a yes Figure 29 Image sensor unit along Figure 26 A cross-sectional view of direction AB.
[0088] Figure 34b yes Figure 34a A magnified partial view of the sectional view.
[0089] Figure 35 The solder is shown as being configured to electrically connect the circuit board to the first and second lower elastic members.
[0090] Figure 36 This is a detached perspective view of an image sensor unit according to another embodiment.
[0091] Figure 37 yes Figure 36 A partially magnified view of the cross-sectional view of the image sensor unit.
[0092] Figure 38 It shows Figure 37 Another embodiment of the foreign matter adsorption section.
[0093] Figure 39 It shows Figure 37 Another embodiment of the foreign matter adsorption section.
[0094] Figure 40 It shows Figure 32 Another embodiment of the foreign matter adsorption section.
[0095] Figure 41 It shows Figure 32 Another embodiment of the foreign matter adsorption section.
[0096] Figure 42 It shows Figure 36 and Figure 37 Another embodiment of the foreign matter adsorption section.
[0097] Figure 43 It shows Figure 36 and Figure 37 Another embodiment of the foreign matter adsorption section.
[0098] Figure 44 This is a perspective view of a portable terminal according to an embodiment.
[0099] Figure 45 It shows Figure 44 A view showing the construction of a portable terminal. Detailed Implementation
[0100] Reference will now be made in detail to embodiments, examples of which are shown in the accompanying drawings.
[0101] However, the technical concept of this disclosure is not limited to the embodiments described below, but can be embodied in various other forms, and one or more components can be selectively connected or replaced between embodiments within the scope of the technical concept of this disclosure.
[0102] Furthermore, unless otherwise defined, the terms used in the embodiments (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains, and it will be further understood that commonly used terms (such as those defined in dictionaries) should be interpreted as having the same meaning as they have in the context of the relevant field.
[0103] Additionally, the terminology used in the embodiments is for the purpose of explaining the embodiments and is not intended to limit this disclosure. In this specification, unless otherwise defined, singular representations may include plural representations, and in the case of describing "at least one (or one or more) of A, B, and C," it may include one or more of all combinations of A, B, and C.
[0104] Furthermore, in describing the components of this disclosure, terms such as “first,” “second,” “A,” “B,” “(a),” and “(b)” may be used. These terms are used only for the purpose of distinguishing one component from another, and the terms do not limit the nature, order, or sequence of the components.
[0105] When a component is referred to as “connected,” “linked,” or “attached” to another component, this can mean not only that the component is directly connected, linked, or attached to the other component, but also that the component is “connected,” “linked,” or “attached” to the other component via another intermediate component. Additionally, it will be understood that when an element is referred to as being “on” or “below” another element, it can be directly on / below that element, and there can also be one or more intermediate elements. When an element is referred to as “on…” or “below…”, this can include both “below that element” and “on that element.”
[0106] "Autofocus" means automatically focusing on an object to form an image of the object on the surface of an image sensor. A lens-mounted device according to an embodiment can perform autofocus to move an optical module including at least one lens along a first direction.
[0107] In the following text, the lens moving device may be referred to as a lens moving unit, a voice coil motor (VCM), or an actuator. In the following text, the term "coil" may be referred to as a coil unit, and the term "elastic member" may be referred to as an elastic unit or a spring.
[0108] In addition, in the following description, the term "terminal" may be referred to as a pad, electrode, conductive layer, or adhesive portion.
[0109] For ease of description, the lens device according to the embodiment will be described using a Cartesian coordinate system (x, y, z). However, other different coordinate systems may be used, and this disclosure is not limited thereto. In the figures, the x-axis and y-axis directions are directions perpendicular to the z-axis direction, which is the optical axis direction. The z-axis direction, as the optical axis direction, may be referred to as the "first direction," the x-axis direction may be referred to as the "second direction," and the y-axis direction may be referred to as the "third direction."
[0110] External impact factors (such as AF drive or vehicle vibration testing) may be applied to injection-molded products (e.g., spools) or lenses, and components of the lens moving equipment may be damaged by the impact.
[0111] As the number of pixels in the image sensor of a camera module increases, the size of the lens mounted in the lens moving device also increases. The stress applied to the elastic components of the lens moving device and the injection-molded product (e.g., spool) increases due to the increased lens size. This increase in stress may exacerbate the effects of external impacts on the lens moving device (e.g., damage).
[0112] According to the embodiment, the lens moving device may be provided with buffers 31, 32 and 33, thereby preventing damage to the components or parts of the lens moving device due to external impact.
[0113] Figure 1 This is a detached perspective view of the lens moving device 100 according to an embodiment, and Figure 2 This is a connection view of the lens moving device 100 with the cover member 300 removed.
[0114] Reference Figure 1 and Figure 2 The lens moving device 100 may include a spool 110, a coil 120, a magnet 130, a housing 140, and a first buffer 31.
[0115] The lens moving device 100 may also include a base 210.
[0116] Additionally, the lens moving device 100 may also include at least one of an upper elastic member 150, a lower elastic member 160, and a cover member 300.
[0117] First, the cover component 300 will be described.
[0118] The cover member 300 can define a receiving space together with the base 210, and can receive the aforementioned components of the lens moving device 100.
[0119] The cover member 300 can be formed in the shape of a box, with an open lower part, and includes an upper plate 301 and side plates 302 connected to the upper plate 301. The lower end of the side plate 302 of the cover member 300 can be connected to the step 211 of the base 210 via an adhesive member or a sealing member. When viewed from above, the upper plate 301 of the cover member 300 can be polygonal in shape, such as a quadrilateral or an octagon.
[0120] The cover member 300 may have an opening, hole or hollow portion 301A in its upper plate 301 through which a lens (not shown) connected to the spool 110 is exposed to external light.
[0121] The cover member 300 may be made of a non-magnetic material (such as SUS) to prevent the magnet 130 from attracting the cover member. Alternatively, the cover member may be made of a magnetic material to perform the function of a yoke. For example, the cover member 300 may be made of a metal or plastic material; however, this disclosure is not limited thereto.
[0122] The cover member 300 may be provided with a boss 303 extending in the direction from the upper plate 301 to the spool 110. The boss 303 may be referred to as an "extension".
[0123] The cover member 300 may be provided with at least one boss 303 extending in a direction from a region adjacent to the hollow portion 301A formed in the upper plate 301 to the upper surface of the spool 110.
[0124] For example, the cover member 300 may be provided with four bosses corresponding to the four corners of the upper plate 301; however, this disclosure is not limited thereto.
[0125] At least a portion of the boss 303 of the cover member 300 may be disposed in or inserted into a recess 119 disposed in the upper surface of the spool 110. For example, one end or the distal end of the boss 303 may be disposed in the recess 119.
[0126] A stepped portion 304, having a step formed along the optical axis and together with the upper surface of the upper plate 301, can be provided at each corner region of the upper plate 301 of the cover member 300. The stepped portion 304 may include a surface positioned lower than the upper surface of the upper plate 301.
[0127] As a result of the spool 110 moving along the optical axis due to AF drive, the boss 303 of the cover member 300 can be adjacent to the bottom surface of the recess 119 of the spool 110, thereby the boss 303 can be used as a stop that restricts the movement of the spool 110 in the upward direction within a predetermined range.
[0128] Alternatively, in another embodiment (where magnets are disposed at each corner of the housing), the boss 303 of the cover member 300 may perform the function of a yoke and may be referred to as an inner yoke.
[0129] In another embodiment, the housing 140 can be omitted, and the boss of the cover member 300 can support or fix the magnet.
[0130] Next, the spool 110 will be described.
[0131] Figure 3a yes Figure 1 The upper perspective view of the spool 110 shown. Figure 3b It is a top perspective view of the spool 110 and the first buffer, and Figure 3c This is a three-dimensional view of the lower part of the spool 110 and the coil 120.
[0132] Reference Figures 3a to 3c The spool 110 can be disposed in the housing 140 and can move along the optical axis (OA) or in a direction parallel to the optical axis due to the electromagnetic interaction between the coil 120 and the magnet 130.
[0133] The spool 110 may have an opening or a hollow portion 110A, in which a lens or lens barrel is mounted. The shape of the opening or hollow portion 110A of the spool 110 may correspond to the shape of the lens or lens barrel mounted therein, and may be circular, elliptical, or polygonal; however, this disclosure is not limited thereto. For example, the opening or hollow portion 110A of the spool 110 may be a through hole formed along the optical axis of the spool 110.
[0134] A lens or lens module can be directly coupled to the inner surface of the spool 110. However, this disclosure is not limited thereto. For example, the spool 110 may include a lens barrel (not shown) in which at least one lens is mounted, and the lens barrel may be coupled to the inner surface of the spool 110 in various ways. For example, threads 110b for coupling with a lens or lens module may be provided in the inner surface of the spool 110.
[0135] The spool 110 may have at least one first connecting portion 113 on its upper surface, upper part or upper end, the at least one first connecting portion being configured to connect and fix to the inner frame 151 of the upper elastic member 150.
[0136] The spool 110 may have at least one second connecting portion 117 provided on its lower surface, lower part or lower end, the at least one second connecting portion being configured to connect and fix to the inner frame 161 of the lower elastic member 160.
[0137] For example, in Figure 3a and Figure 3b In this embodiment, each of the first connecting portion 113 and the second connecting portion 117 of the spool 110 is a boss; however, this disclosure is not limited thereto. In another embodiment, at least one of the first connecting portion and the second connecting portion of the spool 110 may be a connecting recess or a flat surface.
[0138] The first escape recess 112a can be provided in a region on the upper surface of the linear shaft 110, corresponding to or aligned with the first frame connection portion 153 of the upper elastic member 150.
[0139] In addition, the second avoidance recess 112b can be provided in the region of the lower surface of the linear shaft 110, corresponding to or aligned with the second frame connection portion 163 of the lower elastic member 160.
[0140] For example, each of the first avoidance recess 112a and the second avoidance recess 112b may be open to the outer surface of the spool 110; however, this disclosure is not limited thereto. In another embodiment, each of the first avoidance recess and the second avoidance recess may not be open to the outer surface of the spool 110.
[0141] When the spool 110 moves along the first direction, the first avoidance recess 112a and the second avoidance recess 112b of the spool 110 can avoid spatial interference between the first frame connection portion 153 and the second frame connection portion 163 and the spool 110, thereby making it easier for the first frame connection portion 153 and the second frame connection portion 163 of the upper elastic member 150 and the lower elastic member 160 to elastically deform.
[0142] In another embodiment, the first frame connection of the upper elastic member and the spool can be designed not to interfere with each other, and the first avoidance recess and / or the second avoidance recess may not be provided in the spool.
[0143] For example, the spool 110 may have at least one recess 105 in its outer surface, in which the coil 120 is disposed.
[0144] The coil 120 can be set or placed in the recess 105 of the spindle 110.
[0145] For example, coil 120 can be directly wound or coiled in the recess 105 of spool 110 so as to be wound clockwise or counterclockwise based on optical axis OA.
[0146] The shape and number of recesses 105 in the spool 110 may correspond to the shape and number of coils disposed on the outer surface of the spool 110. In another embodiment, the spool 110 may not provide recesses in which coils are disposed, and the coil 120 may be directly wound or coiled around the outer surface of the spool 110 without recesses to secure it thereto.
[0147] A recess 119 corresponding to the boss 303 of the cover member 300 can be formed in the upper surface of the linear shaft 110. For example, the recess 119 can be formed in the first avoidance recess 112a; however, this disclosure is not limited thereto.
[0148] The spool 110 may have at least one recess 16A and 16B at the lower end of its outer surface, through which the starting line (e.g., one end) or ending line (e.g., the other end) of the coil 120 extends.
[0149] The upper surface of the spool 110 may include a first surface 10a and a second surface 11a, the second surface having a step formed together with the first surface 10a along the optical axis direction.
[0150] The upper surface of the spool 110 may include a third surface 12a configured to connect the first surface 10a and the second surface 11a to each other.
[0151] For example, the second surface 11a can be positioned below the first surface 10a. For example, the distance between the lower surface of the spool 110 and the second surface 11a can be less than the distance between the lower surface of the spool 110 and the first surface 10a.
[0152] For example, the first surface 10a and the second surface 11a may be parallel to each other; however, this disclosure is not limited thereto. In another embodiment, they may not be parallel to each other.
[0153] For example, the first surface 10a and the second surface 11a may be perpendicular to the optical axis; however, this disclosure is not limited thereto. In another embodiment, both may not be perpendicular to the optical axis.
[0154] For example, the third surface 12a may be perpendicular to at least one of the first surface 10a and the second surface 11a; however, this disclosure is not limited thereto, and the third surface 12a may not be perpendicular to the first surface 10a and the second surface 11a.
[0155] For example, the first connecting part 113 may be formed on the first surface 10a of the upper surface of the spindle 110.
[0156] For example, the bottom surface of the first recess 112a and the second surface 11a may be the same surface.
[0157] For example, a recess 119 may be formed in the second surface 11a, and the bottom surface of the recess 119 may be positioned below the second surface 11a. For example, the distance between the lower surface of the spool 110 and the bottom surface of the recess 119 may be less than the distance between the lower surface of the spool 110 and the second surface 11a.
[0158] The first buffer 31 can be disposed on the upper surface of the linear shaft 110, corresponding to or opposite the upper plate 301 of the cover member 300 along the optical axis direction. The first buffer 31 may not overlap with the boss 303 of the cover member 300 along the optical axis direction.
[0159] For example, the first buffer 31 can be formed on the second surface 11a of the upper surface of the spindle 110.
[0160] The lower surface of the first buffer 31 may contact the second surface 11a of the upper surface of the spool 110. Alternatively, for example, the first buffer 31 may contact the third surface 12a of the upper surface of the spool 110.
[0161] For example, a first buffer 31 may be disposed in a first avoidance recess 112a. The first buffer 31 may contact the bottom surface of the first avoidance recess 112a. In addition, the first buffer 31 may contact the side surface of the first avoidance recess 112a.
[0162] The first buffer 31 may include at least one buffer stop Q1 to Q4. Here, the buffer stop may be referred to as an "impact absorption part".
[0163] For example, the first buffer 31 may include four buffer stops Q1 to Q4 spaced apart from each other.
[0164] Each of the buffer stops Q1 to Q4 can be set in the corresponding one in the first avoidance recess of the linear shaft 110.
[0165] For example, the first buffer 31 may be disposed in the region where the edge of the second surface 11a and one end of the third surface 12a are in contact with each other; however, this disclosure is not limited thereto.
[0166] For example, such as Figure 2 As shown, the first buffer 31 may not overlap with the first connecting portion 153 of the upper elastic member 150 along the optical axis. Alternatively, for example, the first buffer 31 may be spaced apart from the first connecting portion 153 of the upper elastic member 150.
[0167] In another embodiment, the first buffer may overlap with the first connecting portion 153 of the upper elastic member 150 along the optical axis. Alternatively, for example, in another embodiment, the first buffer may contact the first connecting portion 153 of the upper elastic member 150.
[0168] The upper surface of the first buffer 31 may be on the same plane as the first surface 10a of the spool 110; however, this disclosure is not limited thereto. In another embodiment, the upper surface of the buffer 31 may be higher or lower than the first surface 10a.
[0169] For example, the length (or thickness) of the first buffer 31 along the optical axis can be equal to the length (or thickness) of the step between the first surface 10a and the second surface 11a of the upper surface of the spool 110; however, this disclosure is not limited thereto. In another embodiment, for example, the length (or thickness) of the first buffer 31 along the optical axis can be greater than or less than the length (or thickness) of the step between the first surface 10a and the second surface 11a of the upper surface of the spool 110.
[0170] The distance between the boss 303 and the upper surface of the spool 110 along the optical axis can be equal to or less than the distance between the first buffer 31 and the inner surface of the upper plate of the cover member 300 along the optical axis.
[0171] Additionally, for example, at the initial position of the AF operation unit, the distance d1 along the optical axis between the boss 303 and the bottom surface 119a of the recess 119 of the spool 110 (see...) Figure 10d1 can be less than the distance along the optical axis between the inner surface of the upper plate 301 of the cover member 300 and the first buffer 31. Alternatively, in another embodiment, d1 can be equal to the distance along the optical axis between the inner surface of the upper plate 301 of the cover member 300 and the first buffer 31.
[0172] During AF drive, the boss 303 of the cover member 300 can correspond to the main impact point, and the buffer 31 can correspond to the auxiliary impact point.
[0173] The initial position of the AF operating unit can be the original position of the AF operating unit when there is no drive signal or no power applied to the first coil 1120, or the position of the AF operating unit caused by the elastic deformation of the upper elastic member 150 and the lower elastic member 160 due to the weight of the AF operating unit.
[0174] In addition, the initial position of the AF operation unit can be the position of the AF operation unit when gravity acts in the direction from the spool 110 to the base 210 or when gravity acts in the direction from the base 210 to the spool 110.
[0175] For example, the AF operating unit may be a spool 110. Alternatively, for example, the AF operating unit may include a spool 110 and a component (e.g., coil 120) coupled to the spool 110. The AF operating unit may also include a lens or lens barrel coupled to the spool 110.
[0176] exist Figure 3b In one embodiment, the first buffer 31 is disposed on the second surface 11a of the upper surface of the spool 110; however, according to another embodiment, the first buffer may be disposed in a region of the inner surface of the upper plate 301 of the cover member 300, corresponding to the second surface 11a of the upper surface of the spool 110. In this case, d1 may be equal to or less than the distance along the optical axis between the first buffer and that region of the inner surface of the upper plate 301 of the cover member 300.
[0177] Next, coil 120 will be described.
[0178] The coil 120 can be mounted on the spool 110, can be connected to or attached to the spool 110, or can be supported by the spool 110.
[0179] For example, coil 120 can be disposed on the outer surface of spindle 110 and interact electromagnetically with magnet 130 disposed on housing 140. In order to generate electromagnetic force due to interaction with magnet 130, power can be supplied to coil 120 or a drive signal can be applied to coil.
[0180] The drive signal applied to coil 120 can be a DC signal, such as DC current (or DC voltage). Alternatively, in another embodiment, the drive signal applied to coil 120 can include both AC and DC signals.
[0181] The spool 110, elastically supported by the upper elastic member 150 and the lower elastic member 160, can be moved along the optical axis or a first direction by electromagnetic force, which is generated by the electromagnetic interaction between the coil 120 and the magnet 130.
[0182] The AF operating unit can be driven unidirectionally or bidirectionally by an electromagnetic force generated by the electromagnetic interaction between the coil 120 and the magnet 130. Here, unidirectional drive means that the AF operating unit moves from its initial position in one direction, such as the upward direction (e.g., the upward direction (+Z axis direction)), while bidirectional drive means that the AF operating unit moves from its initial position in two directions (e.g., the upward direction or the downward direction).
[0183] The strength and / or polarity (e.g., current flow direction) of the drive signal supplied to the coil 120 can be controlled, thereby controlling the movement of the AF operating unit (e.g., spool 110) along a first direction, and thus enabling the execution of an autofocus function.
[0184] The coil 120 can be mounted on the spool 110 to have a closed-loop shape (e.g., a ring).
[0185] For example, coil 120 may wrap around the outer surface of spool 110 and may have an annular shape, wherein the coil is wound around the optical axis in a clockwise or counterclockwise direction.
[0186] In another embodiment, the coil 120 may be implemented as a coil loop wound in a clockwise or counterclockwise direction around an axis perpendicular to the optical axis, and the number of coil loops may be equal to the number of magnets 130; however, this disclosure is not limited thereto.
[0187] The coil 120 can be electrically connected to at least one of the upper elastic member 150 and the lower elastic member 160, and a drive signal can be applied to the coil 120 through at least one of the upper elastic member 150 and the lower elastic member 160.
[0188] For example, coil 120 can be connected to elastic units 160-1 and 160-2 of lower elastic member 160 by solder or conductive adhesive, and drive signal can be provided to coil 120 through elastic units 160-1 and 160-2.
[0189] Next, the housing 140 will be described.
[0190] Figure 4a yes Figure 1 A perspective view of the housing 140 shown, and Figure 4b This is a view showing the connection between the housing 140 and the magnet 130.
[0191] Reference Figure 4a and Figure 4b The housing 140 is disposed in the cover member 300.
[0192] The housing 140 supports the magnet 130 and receives the spool 110 therein, such that the spool 110 can move in a first direction.
[0193] The housing 140 can typically have a hollow cylindrical shape.
[0194] The housing 140 may be provided with an opening (or a hollow portion) in which the spool 110 is received, and the opening of the housing 140 may be a through hole formed through the housing 140 along the optical axis direction.
[0195] The housing 140 may include sides (or “first sides”) 141-1 to 141-4 and corners (or “second sides”) 142-1 to 142-4.
[0196] For example, the housing 140 may include a plurality of side portions 141-1 to 141-4 and a plurality of corner portions 142-1 to 142-4 configured to form polygonal (e.g., quadrilateral or octagonal) or circular openings. Here, the corner portions of the housing 140 may be referred to as "support portions".
[0197] For example, the sides 141-1 to 141-4 of the housing 140 may be provided at positions corresponding to the side plates 302 of the cover member 300. For example, the corresponding sides of the cover member 300 and the sides of the housing 140 may be parallel to each other.
[0198] For example, the side portions 141-1 to 141-4 of the housing 140 may be portions corresponding to the side surface of the housing 140, and the corner portions 142-1 to 142-4 of the housing 140 may be portions corresponding to the corners of the housing 140.
[0199] The inner surface of each of the corner portions 142-1 to 142-4 of the housing 140 may be a flat surface, a chamfered surface, or a curved surface.
[0200] Magnet 130 may be disposed or mounted on at least one of the sides 141-1 to 141-4 of housing 140. For example, the placement portion 141a in which magnets 130-1 to 130-4 are disposed, disposed or fixed may be provided at the first side 141-1 to the fourth side 141-4 of housing 140.
[0201] exist Figure 4a In this embodiment, the mounting portion 141a may be an opening or through hole formed through the side portions 141-1 to 141-4 of the housing 140; however, this disclosure is not limited thereto. In another embodiment, the mounting portion may be a recess or a concave recess.
[0202] The housing 140 may include a support portion 18 adjacent to the mounting portion 141a to support the edge of the first surface of the magnet 130 opposite to the coil 120 and / or the spool 110.
[0203] The support portion 18 may be positioned adjacent to the inner surface of the housing 140 and may protrude horizontally from the side surface of the mounting portion 141a. Alternatively, for example, the support portion 18 may include a tapered portion or an inclined surface. In another embodiment, the housing 140 may not include the support portion 18.
[0204] Alternatively, the guide recess 148 may be provided in the lower part of the outer surface of the corner portions 142-1 to 142-4 of the housing 140, and the boss 216 of the base 210 may be inserted into the guide recess or the boss of the base may be fastened or connected to the guide recess.
[0205] To prevent direct collision with the inner surface of the upper plate 301 of the cover member 300, the housing 140 may be provided with a stop 143 on its upper part, upper surface or upper end. Here, the stop 143 may be referred to as a "boss" or "protrusion".
[0206] For example, the stop 143 may be provided on the corner of the housing 140; however, this disclosure is not limited thereto. In another embodiment, the stop 143 may be provided on at least one of the side and corner of the housing 140.
[0207] For example, the upper surface of the stop 143 of the housing 140 may contact the inner surface of the upper plate 301 of the cover member 300; however, this disclosure is not limited thereto. In another embodiment, there may be no contact between them.
[0208] Additionally, the housing 140 may have at least one first connecting portion 144 on its upper surface, upper end, or upper part, to which the first outer frame 152 of the upper elastic member 150 is connected. Furthermore, the housing 140 may have at least one second connecting portion 147 on its lower surface, lower part, or lower end, to which the outer frame 162 of the lower elastic member 160 is connected.
[0209] For example, the first connecting portion 144 and the second connecting portion 147 are provided on the corner portions 142-1 to 142-4 of the housing 140; however, this disclosure is not limited thereto. In another embodiment, the first connecting portion and the second connecting portion may be provided on the side of the housing 140.
[0210] exist Figure 4a and Figure 4b In this embodiment, each of the first connecting portion 144 and the second connecting portion 147 of the housing 140 is a protrusion; however, this disclosure is not limited thereto. In another embodiment, at least one of the first connecting portion 144 and the second connecting portion 147 may be a recess or a flat surface.
[0211] For example, an adhesive (not shown, such as silicone or epoxy resin) may be provided between the guide recess 148 of the housing 140 and the boss 216 of the base 210, and the guide recess 148 of the housing 140 and the boss 216 of the base 210 may be connected to each other via the adhesive, thereby connecting the housing 140 to the base 210.
[0212] Next, magnet 130 will be described.
[0213] At the initial position of the AF operating unit (e.g., spool 110), the magnet 130 may be disposed on the side 141-1 to 141-4 of the housing 140 to correspond to or be opposite to the coil 120.
[0214] At the initial position of the AF operation unit, the magnet 130 can be disposed in the mounting portion 141a of the housing 140 so as to overlap with the coil 120 in a direction perpendicular to the optical axis.
[0215] In another embodiment, the mounting portion 141a may not be formed in the sides 141-1 to 141-4 of the housing 140, and the magnet 130 may be disposed on the outer or inner surface of the sides 141-1 to 141-4 of the housing 140.
[0216] In one embodiment, the magnet 130 includes a first magnet 130-1 to a fourth magnet 130-4 disposed on a first side portion 141-1 to a fourth side portion 141-4 of the housing 140; however, this disclosure is not limited thereto. The number of magnets 130 may be two or more. For example, in another embodiment, two magnets may be disposed on two opposite sides of the housing 140.
[0217] Each of the magnets 130-1 to 130-4 may have a shape corresponding to the outer surface of the corresponding one of the sides 141-1 to 141-4 of the housing 140, such as a polyhedral shape (e.g., a cuboid shape); however, this disclosure is not limited thereto.
[0218] Each of magnets 130-1 to 130-4 can be a monopole magnet having two different polarities and a boundary surface naturally formed between the different polarities.
[0219] For example, each of magnets 130-1 to 130-4 can be a monopole magnet, which is configured such that its first surface opposite to coil 120 has an N pole and its second surface opposite to the first surface has an S pole; however, this disclosure is not limited thereto. The N pole and the S pole can be arranged in opposite directions.
[0220] In another embodiment, to increase the electromagnetic force, each of magnets 130-1 to 130-4 can be a bipolar magnet that is divided into two parts in a direction perpendicular to the optical axis. Here, each of magnets 130-1 to 130-4 can be made of ferrite, AlNiCo alloy or rare earth magnet; however, this disclosure is not limited thereto.
[0221] When each of the magnets 130-1 to 130-4 is a bipolar magnet, each of the magnets 130-1 to 130-4 may include a first magnet portion, a second magnet portion, and a separator disposed between the first magnet portion and the second magnet portion.
[0222] The first magnet portion may include an N pole, a S pole, and a first boundary surface between the N pole and the S pole. Here, the first boundary surface may be a substantially non-magnetic portion, may include a segment with minute polarity, and may be a portion that naturally occurs to form a magnet comprising a single N pole and a single S pole.
[0223] The second magnet portion may include an N pole, a S pole, and a second boundary surface between the N pole and the S pole. Here, the second boundary surface may be a substantially non-magnetic portion, may include a portion with minute polarity, and may be a portion that naturally occurs to form a magnet comprising a single N pole and a single S pole.
[0224] The separator can be a part that separates or isolates the first magnet part from the second magnet part, can be a substantially non-magnetic part, and can be a part with a slight polarity. For example, the separator can be a non-magnetic material or air. For example, the separator can be referred to as a "neutral zone" or "neutral region".
[0225] The separator is an artificially formed portion when the first magnet portion and the second magnet portion are magnetized, and the width of the separator can be greater than the width of each of the first boundary surface and the second boundary surface. Here, the width of the separator can be the length of the separator along the direction from the first magnet portion to the second magnet portion.
[0226] The first surface of each of magnets 130-1 to 130-4 may be a flat surface; however, this disclosure is not limited thereto. The first surface of each of magnets 130-1 to 130-4 may include a curved surface, an inclined surface, or a tapered portion. For example, the first surface of each of magnets 130-1 to 130-4 may be a surface opposite to the outer surface of spool 110 and / or coil 120.
[0227] In another embodiment, magnet 130 may be disposed on each of the corner portions 142-1 to 142-4 of housing 140. For example, in another embodiment, magnet 130 may be disposed on each of two or more corner portions of housing 140.
[0228] According to another embodiment, the lens moving device may further include a sensing magnet disposed on the linear axis 110 and a position sensor disposed on the housing 140 opposite to the sensing magnet. Here, the position sensor may be a Hall sensor or a driver IC including a Hall sensor. The position sensor may output an output signal based on the result of the sensing magnet sensing a magnetic field. The output signal of the position sensor can be used to detect the displacement of the AF operation unit.
[0229] The lens moving device 100 according to an embodiment may further include a second buffer 32 disposed on the upper surface of the base 210 to mitigate impacts caused by collisions between the spool 110 and the base 210. The second buffer 32 will be described below.
[0230] The upper elastic member 150 and the lower elastic member 160 flexibly support the spool 110.
[0231] Figure 5 This is a three-dimensional view showing the separation of the lower elastic member 160 and the base. Figure 6a This is a perspective view of the base 210 and the second buffer 32. Figure 6b The lower surface of the spool 110 corresponding to the second buffer 32 is shown. Figure 7 This is a perspective view showing the connection of the base 210, the second buffer 32, and the lower elastic member 160. Figure 8 It is a lens-mounted mobile device 100 along Figure 2 A cross-sectional view of direction AB, and Figure 9 It is a lens-mounted mobile device 100 along Figure 2 A cross-sectional view of the direction CD.
[0232] Reference Figures 5 to 9 The upper elastic member 150 can be connected to the upper part (or upper surface or upper end) of the spool 110 and / or the upper part (or upper surface or upper end) of the housing 140.
[0233] The lower elastic member 160 can be connected to the lower part (or lower surface or lower end) of the spool 110 and / or the lower part (or lower surface or lower end) of the housing 140.
[0234] exist Figure 2 In this embodiment, the upper elastic member 150 is not divided into multiple parts; however, this disclosure is not limited thereto. In another embodiment, the upper elastic member 150 may include multiple elastic members spaced apart from each other.
[0235] Reference Figure 2 The upper elastic member 150 may include: a first inner frame 151, connected to the upper part of the spool 110; a first outer frame 152, connected to the upper part of the housing 140; and a first frame connecting portion 153, configured to connect the first inner frame 151 and the first outer frame 152 to each other. In the following description, the inner frame may be referred to as "inner", the outer frame may be referred to as "outer", and the frame connecting portion may be referred to as "connecting portion".
[0236] The hole 151a that connects to the first connecting part 113 of the spool 110 can be provided in the first inner frame 151 of the upper elastic member 150, and the hole 152a that connects to the first connecting part 144 of the housing 140 can be provided in the first outer frame 152.
[0237] Reference Figure 5 The lower elastic member 160 may include two or more separate or independent elastic members and may be connected to the spool 110. For example, the elastic member may be referred to as a "lower elastic member", "elastic unit" or "spring".
[0238] For example, the lower elastic member 160 may include a first elastic member 160-1 and a second elastic member 160-2 spaced apart from each other, and the first elastic member 160-1 and the second elastic member 160-2 may be separate from or spaced apart from each other.
[0239] The coil 120 can be electrically connected to the first elastic member 160-1 and the second elastic member 160-2. For example, one end (or the first end) of the coil 120 can be connected to the first elastic member 160-1, and the other end (or the second end) of the coil 120 can be connected to the second elastic member 160-2.
[0240] Each of the first elastic member 160-1 and the second elastic member 160-2 may include: a second inner frame 161 connected to the lower part of the spool 110; a second outer frame 162 connected to the lower part of the housing 140; and a second frame connecting portion 163 configured to connect the second inner frame 161 and the second outer frame 162 to each other.
[0241] The hole 161a that connects to the second connecting part 117 of the bobbin 110 can be provided in the second inner frame 161 of the lower elastic member 160, and the hole 162a that connects to the second connecting part 147 of the housing 140 can be provided in the second outer frame 162.
[0242] For example, a first adhesive portion (or "first adhesive area") 15a connected to one end of the coil 120 may be provided at one end of the second inner frame 161 of the first elastic member 160-1, and a second adhesive portion (or "second adhesive area") 15b connected to the other end of the coil 120 may be provided at one end of the second inner frame 161 of the second elastic member 160-2.
[0243] For example, one end of the coil 120 can be connected to the first adhesive portion 15a of the inner frame 161 of the first elastic member 160-1 by means of solder or conductive adhesive component, and the other end of the coil 120 can be connected to the second adhesive portion 15b of the inner frame 161 of the second elastic member 160-2.
[0244] The reason why the first adhesive portion 15a and the second adhesive portion 15b are provided at the second inner frame 161 is that, since the second inner frame 161 is closer to the spool 110 than the second outer frame 163, it is easier to perform the bonding with the coil 120.
[0245] For example, guide recesses configured as guide coil 120 at one end and the other end can be provided in the first adhesive portion 15a and the second adhesive portion 15b.
[0246] For the first bonding portion 15a and the second bonding portion 15b, the "bonding portion" may be referred to as the pad portion, the connecting terminal portion, the solder portion, or the electrode portion.
[0247] Each of the upper elastic member 150 and the lower elastic member 160 may be implemented by a leaf spring; however, this disclosure is not limited thereto. Each elastic member may be implemented by a helical spring or a suspension wire.
[0248] To form a predetermined pattern, each of the first frame connector 153 and the second frame connector 163 can be bent or folded at least once. The upward and / or downward movement of the spool 110 along the first direction can be flexibly (or elastically) supported by the displacement and micro-deformation of the first frame connector 153 and the second frame connector 163.
[0249] For example, to prevent oscillations during the movement of the spool 110, a damper can be provided between the first frame connection portion 153 of the upper elastic member 150 and the upper surface of the spool 110 (e.g., the first avoidance recess 112a). Alternatively, a damper (not shown) can also be provided between the second frame connection portion 163 of the lower elastic member 160 and the lower surface of the spool 110 (e.g., the second avoidance recess 112b).
[0250] Alternatively, for example, the damper may be applied to the connection between the upper elastic member 150 and each of the spool 110 and the housing 140, or to the connection between the lower elastic member 160 and each of the spool 110 and the housing 140. For example, the damper may be a gel-type silicone resin.
[0251] For example, the first elastic member 160-1 and the second elastic member 160-2 may be separated from or spaced apart from each other at the first side 141-1 and the second side 141-2 of the housing 140; however, this disclosure is not limited thereto.
[0252] The first elastic member 160-1 may include a first terminal 164-1, which is connected to the outer surface of the second outer frame 162 of the first elastic member 160-1, bends from the second outer frame 162 of the first elastic member 160-1 in a direction toward the base 210, and extends toward the base.
[0253] Additionally, the second elastic member 160-2 may include a second terminal 164-2, which is connected to the outer surface of the second outer frame 162 of the second elastic member 160-2, bends from the second outer frame 162 of the second elastic member 160-2 in a direction toward the base 210, and extends toward the base.
[0254] For example, the first terminal 164-1 of the first elastic member 160-1 can extend from the second outer frame 162 of the first elastic member 160-1 to the first outer surface of the base 210. In addition, the second terminal 164-2 of the second elastic member 160-2 can extend from the second outer frame 162 of the second elastic member 160-2 to the first outer surface of the base 210.
[0255] For example, the first terminal 164-1 of the first elastic member 160-1 and the second terminal 164-2 of the second elastic member 160-2 can be disposed on the first outer surface of the base 210 in a spaced-apart manner, and can be adjacent to the first outer surface of the base 210.
[0256] For example, the first terminal 164-1 of the first elastic member 160-1 can be disposed, placed, or inserted into the first recess 52a provided in the base 210.
[0257] Additionally, the second terminal 164-2 of the second elastic member 160-2 can be disposed, placed, or inserted into the second recess 52b provided in the base 210. Here, the recess can also be referred to as a "recess". For example, the first recess 52a and the second recess 52b can be formed in the first outer surface of the base 210.
[0258] The first terminal 164-1 of the first elastic member 160-1 and the second terminal 164-2 of the second elastic member 160-2 can be exposed from the base 210, and the first terminal 164-1 and the second terminal 164-2 can be spaced apart from each other.
[0259] For example, the inner surface of the first terminal 164-1 disposed in the first recess 52a of the base 210 may be adjacent to a surface (e.g., the bottom surface) of the first recess 52a, and the outer surface of the first terminal 164-1 may be exposed from the outer surface (e.g., the first outer surface) of the base 210. The outer surface of the first terminal 164-1 may be the surface opposite to the inner surface of the first terminal 164-1.
[0260] Additionally, the inner surface of the second terminal 164-2 disposed in the second recess 52b of the base 210 may be adjacent to a surface (e.g., the bottom surface) of the second recess 52b, and the outer surface of the second terminal 164-2 may be exposed from the outer surface (e.g., the first outer surface) of the base 210. The outer surface of the second terminal 164-2 may be the surface opposite to the inner surface of the second terminal 164-2.
[0261] For example, the lower end of each of the first terminal 164-1 and the second terminal 164-2 may be exposed from the lower surface of the base 210; however, this disclosure is not limited thereto. In another embodiment, the lower end of each of the first terminal 164-1 and the second terminal 164-2 may not be exposed from the lower surface of the base 210.
[0262] The depth of the recesses 52a and 52b may be greater than the thickness of the connecting terminals 164-1 and 164-2, and the outer surfaces of the connecting terminals 164-1 and 164-2 disposed in the recesses 52a and 52b may not protrude from the recesses 52a and 52b; however, this disclosure is not limited thereto. In another embodiment, the outer surfaces of the connecting terminals 164-1 and 164-2 may protrude from the recesses 52a and 52b.
[0263] The first terminal 164-1 and the second terminal 164-2 can be electrically connected to an external wire or external component via a conductive adhesive component (e.g., solder) to receive power or drive signals from the outside.
[0264] If the solder adhered to the first terminal 164-1 and the second terminal 164-2 protrudes from the outer surface of the base 210, contact or collision between the solder adhered to the first terminal 164-1 and the second terminal 164-2 and the cover member 300 can be prevented, which could lead to an electrical short circuit or open circuit. In this embodiment, the depth of the recesses 52a and 52b is sufficiently fixed so that the solder adhered to the first terminal 164-1 and the second terminal 164-2 does not protrude from the outer surface of the base 210, thereby preventing an electrical short circuit or open circuit.
[0265] For the first terminal 164-1 and the second terminal 164-2, the "connection terminal" may be referred to as the pad portion, bonding portion, solder portion or electrode portion.
[0266] The first terminal 164-1 of the first elastic member 160-1 and the second terminal 164-2 of the second elastic member 160-2 can be electrically connected to the coil 120, and the power or drive signal for driving the coil 120 can be provided to the first terminal 164-1 and the second terminal 164-2.
[0267] exist Figure 5 In this embodiment, the first terminal 164-1 is integrally formed with the first elastic member 160-1, and the second terminal 164-2 is integrally formed with the second elastic member 160-2; however, this disclosure is not limited thereto. In another embodiment, the first terminal may be formed separately from the first elastic member and disposed on the first outer surface of the base 210, and the second terminal may be formed separately from the second elastic member and disposed on the first outer surface of the base 210. The first elastic member and the first terminal may be connected to each other by a conductive adhesive (e.g., solder), and the second elastic member and the second terminal may be connected to each other by a conductive adhesive (e.g., solder).
[0268] Next, the base 210 will be described.
[0269] The base 210 can be coupled to the housing 140 and can define a receiving space together with the cover member 300, the receiving space being configured to receive the spool 110 and the housing 140. The base 210 may be provided with an opening 21 corresponding to the opening of the spool 110 and / or the opening of the housing 140, and may be configured to have a shape consistent with or corresponding to the shape of the cover member 300, such as a quadrilateral shape.
[0270] The base 210 may have a step 211 at its lower outer surface, which may be coated with adhesive when the cover member 300 is fixed by adhesion. In this case, the step 211 may guide the cover member 300 connected to it above, and may be opposite to the lower end of the side plate 302 of the cover member 300. Adhesive members and / or sealing members may be provided or coated between the lower end of the side plate 302 of the cover member 300 and the step 211 of the base 210.
[0271] The base 210 can be positioned below the linear shaft 110 and the housing 140.
[0272] For example, the base 210 can be located below the lower elastic member 160.
[0273] A boss 216 protruding toward the housing 140 can be formed on the upper surface of the base 210.
[0274] The base 210 may be provided with bosses 216 that protrude upwards to a predetermined height from its four corners or corner portions. Here, the bosses 216 of the base 210 may be referred to as "support portions".
[0275] For example, each boss 216 of the base 210 may have a polygonal column shape that protrudes from the upper surface of the base 210 in a manner perpendicular to the upper surface of the base 210; however, this disclosure is not limited thereto.
[0276] The boss 216 of the base 210 can be inserted, fastened or attached to the guide recess 148 of the housing 140 by means of an adhesive component (such as epoxy resin or silicone resin).
[0277] To prevent the lower surface or lower end of the spool 210 from directly colliding with the upper surface of the base 210 during AF driving or in the event of an external impact, the base 210 may be provided with a stop 23 protruding from the upper surface of the base 210. The base 210 may be provided with multiple stops. For example, the stop 23 of the base 210 may be configured to correspond to a boss 216 of the base 210; however, this disclosure is not limited thereto.
[0278] In order to avoid spatial interference between the spool 110 and the lower elastic member 160, the stop member 23 of the base 210 can be positioned higher than the first elastic member 160-1 and the second elastic member 160-2 (e.g., the second frame connection 163) connected to the base 210.
[0279] Additionally, the base 210 may have a recess 247 in its upper surface, into which the protruding second connecting portion 147 of the housing 140 is disposed, inserted, and connected. The recess 247 may correspond to or be opposite to the second connecting portion 147 of the housing 140 along the optical axis. For example, the recess 247 may be formed in a region on the upper surface of the base 210, which is located between the boss 216 and the stop member 23 of the base 210; however, this disclosure is not limited thereto.
[0280] For example, the base 210 may include sides corresponding to or opposite to the sides 141-1 to 141-4 of the housing 140 and corner portions corresponding to or opposite to the corner portions 142-1 to 142-4 of the housing 140.
[0281] For example, the first recess 52a and the second recess 52b can be formed in the outer surface of the first side of the base 210.
[0282] For example, each of the first recess 52a and the second recess 52b may include an upper opening that opens to the upper surface of the base 210 and a lower opening that opens to the lower surface of the base 210.
[0283] The upper surface of the base 210 may include a first surface 42A and a second surface 42B, the second surface having a step formed together with the first surface 42A along the optical axis.
[0284] For example, the second surface 42B of the base 210 can be positioned lower than the first surface 42A. For example, the distance between the lower surface of the base 210 and the second surface 42B can be less than the distance between the lower surface of the base 210 and the first surface 42A.
[0285] For example, the first surface 42A and the second surface 42B may be parallel to each other; however, this disclosure is not limited thereto. In another embodiment, they may not be parallel to each other.
[0286] For example, the first surface 42A and the second surface 42B may be perpendicular to the optical axis; however, this disclosure is not limited thereto. In another embodiment, both may not be perpendicular to the optical axis.
[0287] The second surface 42B can be closer to the opening 21 of the base 210 than the first surface 42A.
[0288] The first surface 42A can be closer to the outer surface of the base 210 than the second surface 42B.
[0289] The first surface 42A can be closer to the corner of the base 210 than the second surface 42B.
[0290] The base 210 may also include a third surface 42C positioned lower than the first surface 42A and higher than the second surface 42B. For example, the third surface 42C may be adjacent to the inner surface of the base 210 formed by the opening. In addition, the third surface 42C may have the same height as the uppermost end 19 of the inner surface of the base 210.
[0291] For example, the first surface 42A can be referred to as the "1-1 surface", the second surface 42B can be referred to as the "1-2 surface", and the third surface 42C can be referred to as the "1-3 surface".
[0292] The boss 216 can be disposed on the first surface 42A of the upper surface of the base 210, and can protrude from the first surface 42A in the upward direction or in the optical axis direction.
[0293] The stop 23 can be disposed on the second surface 42B of the upper surface of the base 210, and can protrude from the second surface 42B in the upward direction or in the optical axis direction.
[0294] The upper surface of each stop 23 may be positioned above the first surface 42A of the upper surface of the base 210. Alternatively, in another embodiment, the upper surface of each stop 23 and the first surface 42A may be positioned at the same height. In another embodiment, the upper surface of each stop 23 may be positioned below the first surface 42A.
[0295] The upper surface of the stop 23 can be positioned above the second surface 42B and the third surface 42C of the upper surface of the base 210.
[0296] The recess 247 can be formed in the first surface 42A of the upper surface of the base 210.
[0297] Reference Figure 6a The second buffer 32 can be disposed on the second surface 42B of the upper surface of the base 210.
[0298] The lower surface of the second buffer 32 may contact the second surface 42B of the upper surface of the base 210. Alternatively, for example, the upper surface of the base 210 may also include a surface 42D configured to connect the first surface 42A and the second surface 42B of the base 210 to each other.
[0299] For example, the second buffer 32 can contact the surface 42D of the base 210.
[0300] The second buffer 32 may include at least one buffer stop R1 to R4. Here, the buffer stop may be referred to as an "impact absorption part".
[0301] For example, the second buffer 32 may include four buffer stops R1 to R4 spaced apart from each other. For example, the second buffer 32 may be disposed between the opening 21 of the base 210 and the side of the upper surface of the base 210.
[0302] Reference Figure 3c and Figure 6b The lower surface of the spool 110 may be opposite to the upper surface of the base 210 along the optical axis. The lower surface of the spool may include a first surface 10b and a second surface 11b, the second surface having a step formed together with the first surface 10b along the optical axis.
[0303] The lower surface of the spool 110 may include a third surface 12b configured to connect the first surface 10b and the second surface 11b to each other.
[0304] The first surface 10b can be referred to as "2-1 surface", the second surface 11b can be referred to as "2-2 surface", and the third surface 12b can be referred to as "2-3 surface".
[0305] For example, the second surface 11b of the lower surface of the spool 110 can be positioned higher than the first surface 10b of the lower surface of the spool 110. For example, the distance between the upper surface of the spool 110 and the second surface 11b can be less than the distance between the upper surface of the spool 110 and the first surface 10a.
[0306] For example, the first surface 10b and the second surface 11b of the lower surface of the spool 110 may be parallel to each other; however, this disclosure is not limited thereto. In another embodiment, they may not be parallel to each other.
[0307] For example, the first surface 10b and the second surface 11b may be perpendicular to the optical axis; however, this disclosure is not limited thereto. In another embodiment, both may not be perpendicular to the optical axis.
[0308] For example, the third surface 12b may be perpendicular to at least one of the first surface 10b and the second surface 11b; however, this disclosure is not limited thereto, and the third surface 12b may not be perpendicular to the first surface 10b and the second surface 11b.
[0309] For example, the second connecting part 117 can be formed on the first surface 10b of the lower surface of the spindle 110.
[0310] For example, the bottom surface of the second recess 112b and the second surface 11b may be the same surface.
[0311] The stop 15A may be disposed on the lower surface of the linear shaft 110. The stop 15A may protrude or extend toward the upper surface of the base 210.
[0312] For example, the spool 110 may be provided with a stop 15A formed in the second avoidance recess 112b.
[0313] For example, the stop 15A can be provided on the second surface 11b of the lower surface of the spindle 110 and can protrude from the second surface 11b of the lower surface of the spindle 110 in a downward direction.
[0314] For example, stop 15A can be provided in each of the four second avoidance recesses 112b of the linear shaft 110.
[0315] The stop 15A of the spool 110 can correspond to or be opposite to the stop 23 of the base 210 along the optical axis. For example, the stop 15A of the spool 110 can overlap with the stop 23 of the base 210 along the optical axis.
[0316] At the initial position of the AF operating unit, the stop 15A of the spool 110 and the stop 23 of the base 210 can be spaced apart from each other.
[0317] The second surface 42B of the upper surface of the base 210 may include a first region that overlaps with the second surface 11b of the lower surface of the spool 110 along the optical axis direction, and the second buffer 32 may be disposed in the first region of the second surface 42B of the upper surface of the base 210.
[0318] For example, the second buffer 32 may be configured to be spaced apart from the stop 23 of the base 210. According to another embodiment, the second buffer 32 may be adjacent to the stop 23 of the base 210.
[0319] The distance along the optical axis between the stop 15A of the spool 110 and the stop 23 of the base 210 can be equal to or less than the distance along the optical axis between the second buffer 32 and the lower surface of the spool 110.
[0320] For example, at the initial position of the spool 110, the distance d2 along the optical axis between the stop 15A of the spool 110 and the stop 23 of the base 210 (see...) Figure 10 It can be less than the distance along the optical axis between the second surface 11b of the spool 110 and the second surface 42B of the base 210.
[0321] For example, at the initial position of the spool 110, the distance d2 between the stop 15A of the spool 110 and the stop 23 of the base 210 along the optical axis can be less than the distance between the second surface 11b of the spool 110 and the second buffer 32.
[0322] For example, the upper surface of the second buffer 32 can be positioned lower than the first surface 42A of the base 210. For example, the distance between the upper surface of the second buffer 32 and the lower surface of the base 210 can be less than the distance between the first surface 42A of the base 210 and the lower surface of the base 210.
[0323] In another embodiment, for example, the upper surface of the second buffer 32 may be positioned at the same height as the first surface 42A of the base 210.
[0324] For example, the length (or thickness) of the second buffer 32 along the optical axis can be less than the length (or thickness) of the step between the first surface 42A and the second surface 42B of the base 210. In another embodiment, the length (or thickness) of the second buffer 32 along the optical axis can be equal to the length (or thickness) of the step between the first surface 42A and the second surface 42B of the base 210.
[0325] Alternatively, for example, the upper surface of the second buffer 32 may be positioned below the upper surface of the stop 23 of the base 210. In another embodiment, for example, the upper surface of the second buffer 32 may be positioned at the same height as the upper surface of the stop 23 of the base 210. In another embodiment, the upper surface of the second buffer 32 may be positioned above the upper surface of the stop 23.
[0326] For example, the length (or thickness) of the second buffer 32 along the optical axis can be less than the length (or thickness) of the stop 23 of the base 210 along the optical axis.
[0327] In another embodiment, the length (or thickness) of the second buffer 32 along the optical axis can be equal to the length (or thickness) of the stop 23 of the base 210 along the optical axis.
[0328] In another embodiment, the length (or thickness) of the second buffer 32 along the optical axis can be greater than the length (or thickness) of the stop 23 of the base 210 along the optical axis.
[0329] The second buffer 32 can be disposed between the second surface 11b of the spindle 110 and the second surface 42B of the base 210. For example, the second buffer 32 can be attached to or fixed to the second surface 42B of the base 210.
[0330] For example, at the initial position of the AF operating unit, the upper surface of the second buffer 32 may be positioned below the second frame connection portion 163 of the lower elastic member 160; however, this disclosure is not limited thereto. In another embodiment, the upper surface of the second buffer 32 may be positioned at the same height as the second frame connection portion 163, or it may be positioned above the second frame connection portion.
[0331] For example, at least a portion of the second buffer 32 may overlap with the second frame connection portion 163 of the lower elastic member 160 along the optical axis; however, this disclosure is not limited thereto. In another embodiment, the two may not overlap each other along the optical axis.
[0332] At least a portion of the second buffer 32 may contact the second frame connection 163 of the lower elastic member 160; however, this disclosure is not limited thereto. In another embodiment, the two may be spaced apart from each other.
[0333] exist Figure 6a In one embodiment, the second buffer 32 is attached or fixed to the second surface 42B of the base 210; however, in another embodiment, the second buffer may be attached or fixed to the second surface 11b of the lower surface of the spool 110. In this case, the distance along the optical axis between the stop 15A of the spool 110 and the stop 23 of the base 210 may be equal to or less than the distance along the optical axis between the second buffer and the upper surface of the base. Additionally, for example, the lower surface of the second buffer may be positioned above the lower surface of the stop 15A of the spool 110 or at the same height as the lower surface of the stop of the spool.
[0334] Figure 10 This is a cross-sectional view of a portion of the lens moving device 100 according to an embodiment.
[0335] Reference Figure 10 The first buffer 31 can be disposed between the inner surface of the upper plate 301 of the cover member 300 and the second surface 11A of the upper surface of the spool 110.
[0336] Since the distance d1 between the boss 303 and the bottom surface 119a of the recess 119 of the spool 110 is less than the distance between the inner surface of the upper plate 301 of the cover member 300 and the first buffer 31, the boss may first collide with the bottom surface 119a due to external impact, and then the inner surface of the upper plate 301 of the cover member 300 may collide with the first buffer 31.
[0337] That is, the bottom surface 119a may correspond to the main impact point or main impact area 28A, while the first buffer 31 may correspond to the auxiliary impact point or auxiliary impact area. The first buffer 31 can be used to help reduce the impact of the cover member 300 on the spool 110.
[0338] In addition, although d1 is equal to the distance between the inner surface of the upper plate 301 of the cover member 300 and the first buffer 31, since the stiffness of the first buffer 31 is less than that of each of the cover member 300 and the spool 110, the bottom surface 119a can also correspond to the main impact point, while the first buffer 31 can correspond to the auxiliary impact point.
[0339] The first buffer 31 may be made of a material that exhibits higher impact absorption than the materials used for the cover member 300, spool 110, housing 140 and / or base 210.
[0340] For example, the first buffer 31 may be made of a material that exhibits lower stiffness than each of the cover member 300, spool 110, housing 140 and / or base 210.
[0341] Here, stiffness k can be the ratio of the force F applied to the elastic body to the displacement δ of the elastic body caused by it (k = F / δ). For example, stiffness can be defined as the force required to deform the elastic body by a unit length (e.g., 1 mm).
[0342] Alternatively, stiffness can be defined as Young's modulus. Young's modulus is an elastic coefficient that defines the relationship between stress (force per unit area) and strain in a linear elastic material in a uniaxial deformation region. Since the unit of Young's modulus is pressure, it can be expressed in Pascals, megapascals (MPa), or gigapascals (GPa).
[0343] The first buffer 31 may be made of a shock-absorbing material (such as rubber, silicone, foam rubber, POM material (e.g., polyacetal or polyoxymethylene) or polyurethane).
[0344] For example, the first buffer 31 may include any one of rubber, silicone, foam rubber, POM material and polyurethane.
[0345] Because the first buffer 31 is made of a material that exhibits higher impact adhesion than the materials used for the cover member 300 and the spool 110, it deforms significantly when it is the primary impact point, thereby continuously changing the travel range of the spool 110 along the optical axis. If the travel range of the spool 110 along the optical axis changes continuously, the reliability of autofocus due to AF drive may deteriorate.
[0346] Additionally, the second buffer 32 can be disposed between the second surface 11b of the lower surface of the spindle 110 and the second surface 42B of the upper surface of the base 210.
[0347] Since the distance d2 along the optical axis between the stop 15A on the lower surface of the spool 110 and the stop 23 on the upper surface of the base 210 is less than the distance between the second surface 11b of the spool 110 and the second buffer 32, the stop 15A of the spool 110 may collide with the stop 23 of the base 210 due to an external impact, and then the lower surface of the spool 110 (e.g., the second surface 11b) may collide with the second buffer 32.
[0348] That is, each of the stop 15A of the spool 110 and the stop 23 of the base 210 can correspond to the main impact point or main impact region 28B, while the second buffer 32 can correspond to the auxiliary impact point or auxiliary impact region. The second buffer 32 can be used to supplement the impact caused by the collision between the spool 110 and the base 210.
[0349] Even though d2 is equal to the distance between the second surface 11b of the spool 110 and the second buffer 32, since the stiffness of the second buffer 32 is less than that of each of the spool 110 and the base 210, each of the stops 15A and 23 can also correspond to the main impact point, while the second buffer 32 can correspond to the auxiliary impact point.
[0350] The description of the material used for the first buffer 31 can be applied to, or modified as necessary, to, the material used for the second buffer 32. For example, the material used for the second buffer 32 can be the same as the material used for the first buffer 31.
[0351] The lens moving device 100 may also include a third buffer disposed on the inner surface of the upper plate of the cover member 300.
[0352] Figure 11a This is a lower perspective view of the third buffer 33 and the cover component 300. Figure 11b This is a partial cross-sectional view of the lens moving device 100.
[0353] Reference Figure 11a and Figure 11b The third buffer 33 can be disposed on the inner surface of the upper plate of the cover member 300 so as to correspond to or be opposite to the first surface 10a of the upper surface of the spool 110 along the optical axis direction.
[0354] For example, the third buffer 33 may correspond to or be opposite to the first inner frame 151 of the upper elastic member 150 disposed on the first surface 10a of the upper surface of the linear shaft 110 along the optical axis direction.
[0355] For example, the third buffer 33 may include a plurality of buffer stops P1 to P4 spaced apart from each other. The plurality of buffer stops P1 to P4 may be disposed on the inner surface of the upper plate 310, corresponding to the side surface of the cover member 300.
[0356] For example, a third buffer 33 may be disposed in a region on the inner surface of the upper plate 301 of the cover member 300, the region being located between two adjacent bosses of the cover member 300.
[0357] For example, the buffer stops P1 to P4 can be arranged symmetrically about the optical axis OA of the cover member 300 or the central axis of the opening 301A at a predetermined angle (e.g., 90 degrees).
[0358] The distance between the boss 303 and the upper surface of the spool 110 along the optical axis can be equal to or less than the distance between the third buffer 33 and the upper surface of the spool 110.
[0359] For example, at the initial position of the AF operation unit, the distance d1 between the boss 303 of the cover member 300 and the bottom surface 119a of the recess 119 of the spool 110 can be less than the distance between the third buffer 33 provided on the cover member 300 and the first surface 10a of the upper surface of the spool 110.
[0360] For example, at the initial position of the AF operation unit, the distance d1 between the boss 303 of the cover member 300 and the bottom surface 119a of the recess 119 of the spool 110 can be less than the distance between the third buffer 33 disposed on the cover member 300 and the first inner frame 151 of the upper elastic member 150 disposed on the first surface 10a of the upper surface of the spool 110.
[0361] The boss 303 of the cover member 300 and the bottom surface 119a of the recess 119 of the spool 110 may collide with each other due to AF drive or external impact, and then the third buffer 33 and the spool 110 may collide with each other. That is, each of the first surface 10a of the third buffer 33 and the spool 110 and / or the first inner frame 151 disposed on the first surface 10a may correspond to an auxiliary impact point and may help to mitigate the impact.
[0362] The description of the material used for the first buffer 31 can be applied to, or modified as necessary, to, the material used for the third buffer 33. For example, the material used for the third buffer 33 can be the same as the material used for the first buffer 31.
[0363] In another embodiment, the third buffer may not be disposed on the inner surface of the upper plate of the cover member 300, but may be disposed on the first surface 10a of the upper surface of the spool 110. For example, in another embodiment, the third buffer may be disposed on the first inner frame 153 located on the first surface 10a of the spool 110. In this case, d1 may be equal to or less than the distance along the optical axis between the third buffer and the inner surface of the upper plate 301 of the cover member 300.
[0364] according to Figure 1 The lens moving device of the illustrated embodiment is provided with a first buffer 31, a second buffer 32, and a third buffer 33; however, this disclosure is not limited thereto. A lens moving device according to another embodiment may include at least one of the first to third buffers 31, 32, and 33.
[0365] As a result of the movement of the spool 110 along the optical axis due to external impact factors and / or AF drive, the spool 110 may collide with the cover member 300 in the upward direction and may collide with the base 210 in the downward direction.
[0366] Because the stiffness of the first buffer 31 to the third buffer 33 is less than that of the cover member 300, the spool 110 and the housing 140, the first to third buffers are easily deformed by external impacts. Therefore, when each of the first buffer 31 to the third buffer 33 is located at the main impact point, the travel range of the AF operation unit along the optical axis direction changes continuously during AF driving, which may degrade the reliability of AF driving.
[0367] However, in this embodiment, as described above, since at least one of the first to third buffers 31 is located at the auxiliary impact point, it can assist in absorbing the impact caused by collisions between the spool 110 and the cover member 300 and / or between the spool 110 and the base 210 due to external impacts and / or AF driving, thereby preventing damage to the AF operating unit (e.g., the spool 110). Even though the first to third buffers 33 assist in absorbing the impact, since the first to third buffers 31 exhibit higher impact absorption than the cover member 300, the spool 210, and the base 210, the effect of preventing damage to the spool 110 due to impact absorption can also be improved.
[0368] In addition, since the first buffer 31 to the third buffer 33 help absorb the impact, the deformation of the first buffer 31 to the third buffer 33 due to the impact is small, thereby suppressing abnormal fluctuations in the travel range of the AF operation unit along the optical axis.
[0369] Furthermore, the lens-mounted device according to the above embodiments can be used in various fields (such as camera modules or optical instruments).
[0370] For example, the lens-mounted mobile device 100 according to an embodiment may include an optical instrument configured to form an image of an object in space using properties of light such as reflection, refraction, absorption, interference, and diffraction, in order to: increase the visual power of the eye, record or reproduce the image formed by the lens, perform optical measurements, or transmit or transmit an image. For example, the optical instrument according to an embodiment may be a cellular phone, mobile phone, smartphone, portable smart device, digital camera, laptop computer, digital broadcast terminal, personal digital assistant (PDA), portable multimedia player (PMP), navigation device, etc.; however, this disclosure is not limited thereto. Any device capable of capturing images or taking photographs may be used.
[0371] Figure 12This is an exploded perspective view of the camera module 200 according to an embodiment.
[0372] Reference Figure 12 The camera module may include a lens module 400, a lens moving device 100, an adhesive component 612, a filter 610, a circuit board 800, an image sensor 810, and a connector 840.
[0373] The lens module 400 may include a lens or lens barrel and may be mounted or coupled to the spool 110 of the lens moving device 100.
[0374] For example, lens module 400 may include one or more lenses and a lens barrel configured to receive one or more lenses. However, the configuration of the lens module is not limited to a lens barrel, and any retainer structure capable of supporting one or more lenses may be used. The lens module may be coupled to lens mobile device 100 so that it can move with lens mobile device 100.
[0375] As an example, the lens module 400 can be threadedly engaged with the lens mobile device 100. As an example, the lens module 400 can be attached to the lens mobile device 100 using an adhesive (not shown). Meanwhile, light that has passed through the lens module 400 can illuminate the image sensor 810 via the filter 610.
[0376] The adhesive component 612 can attach or adhere the base 210 of the lens moving device 100 to the circuit board 800. For example, the adhesive component 612 can be epoxy resin, thermosetting adhesive, or UV-curing adhesive.
[0377] Filter 610 can be used to prevent specific frequency band components of light passing through lens module 400 from incident on image sensor 810. Filter 610 can be an infrared cutoff filter; however, this disclosure is not limited thereto. In this case, filter 610 can be arranged parallel to the xy plane.
[0378] Infrared cutoff filters can be made of membrane materials or glass materials. As an example, an infrared cutoff filter can be formed by coating a flat optical filter (such as a cover glass configured to protect the imaging surface) with an infrared cutoff coating material.
[0379] The filter 610 can be positioned below the base 210 of the lens moving device 100.
[0380] For example, the base 210 of the lens moving device 100 may have a mounting portion on its lower surface, on which the filter 610 is mounted. In another embodiment, the filter may not be mounted on the base, but rather a separate sensor base may be provided, on which the filter is mounted.
[0381] The circuit board 800 may be disposed below the lens moving device 100, and the image sensor 810 may be mounted on the circuit board 800. The image sensor 810 may receive an image included in the light incident through the lens moving device 100, and may convert the received image into an electrical signal.
[0382] Image sensor 810 can be positioned to have the same optical axis as lens module 400. As a result, image sensor can acquire light that has passed through lens module 400. Image sensor 810 can output radiated light as an image.
[0383] The circuit board 800 can be electrically connected to the coil 120 of the lens moving device 100.
[0384] For example, the circuit board 800 may be provided with terminals 91 and 92, which are electrically connected to the first terminal 164-1 and the second terminal 164-2 of the lower elastic member 150 of the lens moving device 100.
[0385] exist Figure 12 The diagram shows two terminals 91 and 92 of a circuit board 800; however, this disclosure is not limited thereto. The circuit board 800 may include multiple terminals required for controlling the camera module, such as two or more terminals.
[0386] The filter 610 and the image sensor 810 can be arranged spaced apart from each other, while being opposite to each other in a first direction.
[0387] Connector 840 can be electrically connected to circuit board 800 and can have a port for conductive connection to external devices.
[0388] The camera module 200 may include a controller 410 configured to control the AF drive of the lens moving device 100. In another embodiment, the controller 410 may be omitted.
[0389] The camera module 200 may also include a motion sensor (not shown) configured to output information about rotational angular velocity based on the movement of the camera module 200.
[0390] Figure 13 This is a perspective view of a camera module 1200 according to another embodiment. Figure 14 yes Figure 13 Separate stereoscopic view of camera module 1200, Figure 15 It is the camera module along Figure 13 A cross-sectional view of direction AB. Figure 16a This is a 3D view of the retainer 1600. Figure 16b It is the retainer 1600 along Figure 16a A cross-sectional view of the direction CD. Figure 17a This is a perspective view of the retainer 1600 and the first adhesive member 1310. Figure 17b The retainer 1600 and the first adhesive member 1310 are along Figure 17a A cross-sectional view along the CD direction. Figure 17c This is a bottom-view perspective view of the retainer 1600 and the filter 1610. Figure 18a This is a perspective view of the retainer 1600, the first adhesive member 1310, and the filter 1610. Figure 18b This is a cross-sectional view of the retainer 1600, the first adhesive member 1310, and the filter 1610 along the CD direction. Figure 19 This is a cross-sectional view of a portion of a camera module 1200 according to another embodiment. Figure 20 yes Figure 19 An enlarged view of the dashed section 1011, and Figure 21 Solders 1035A and 1035B are shown that are configured to electrically connect circuit board 1190 to the first terminal 1164-1 of the first lower elastic member 1160-1 and the second terminal 1164-2 of the second lower elastic member 1160-2.
[0391] Reference Figures 13 to 21 The camera module 1200 may include a lens module 1400, a lens moving device 1100, a filter 1610, a retainer 1600, a first adhesive member 1310, a circuit board 1190, and an image sensor 1810.
[0392] Here, the "camera module" can be referred to as an "imaging device" or "shooting device," and the holder 1600 can be referred to as a "sensor base." Additionally, the lens module 1400 can be referred to as a "lens unit" or "lens assembly." The lens module 1400 can be coupled to the lens moving device 1100 and can include at least one of a lens 1412 and a lens barrel 1414.
[0393] Additionally, the camera module 1200 may also include a second adhesive member 1612 configured to connect or attach the lens moving device 1100 (e.g., base 1210) and the retainer 1600 to each other.
[0394] Additionally, the camera module 1200 may also include an adhesive member (not shown) disposed between the retainer 1600 and the circuit board 1190.
[0395] Additionally, the camera module 1200 may also include circuit elements (or electronic components) 1095 that are set or mounted on the circuit board 1190.
[0396] The lens module 1400 can be mounted on the spool 1110 of the lens moving device 1100.
[0397] The lens moving device 1100 can drive the lens module 1400 and can move the lens module along the optical axis.
[0398] Camera module 1200 can be either an autofocus (AF) camera module or an optical image stabilization (OIS) camera module. The AF camera module can be a camera module capable of performing only autofocus, and the OIS camera module can be a camera module capable of performing both autofocus and optical image stabilization (OIS) functions.
[0399] exist Figure 13 and Figure 14 In this embodiment, the lens mobile device 1100 is an AF lens mobile device; however, this disclosure is not limited thereto. In another embodiment, the lens mobile device 1100 may be an OIS lens mobile device. Here, the meanings of "AF" and "OIS" may be the same as those described in conjunction with the meanings of the AF camera module and the OIS camera module.
[0400] In another embodiment, the camera module 1200 may include a reference. Figures 1 to 11b The described lens mobile device 100 replaces Figure 14 The lens mobile device 1100.
[0401] The lens moving device 1100 may include: a housing 1140; a spool 1110 disposed in the housing 1140, the spool being configured to allow the lens module 1400 to be mounted on the spool; a coil 1120 disposed on the spool 1110; a magnet 1130 disposed on the housing 1140, the magnet being opposite the coil 1120; at least one upper elastic member 1150 connected to the upper portion of the spool 1110 and the upper portion of the housing 1140; a lower elastic member 1160 connected to the lower portion of the spool 1110 and the lower portion of the housing 1140; and a base 1210.
[0402] Additionally, the lens moving device 1100 may also include a cover member 1300 coupled to the base 1210, the cover member being configured to define a space together with the base 1210 in which components of the lens moving device 1100 are received.
[0403] The cover member 1300 may be formed in the shape of a box, with its lower part open and including an upper plate 1301 and a side plate 1302. For example, the lower part of the cover member 1300 (e.g., the lower part of the side plate 1302) may be connected to the base 1210. The shape of the upper plate 1301 of the cover member 1300 may be circular or polygonal, such as quadrilateral or octagonal; however, this disclosure is not limited thereto. The cover member 1300 may have an opening 1303 in its upper plate 1301 through which the lens module 1400, connected to the spool 1110, is exposed to external light.
[0404] For example, coil 1120 may be connected to at least one of upper elastic member 1150 and lower elastic member 1160. For example, lower elastic member 1160 may include two lower elastic members 1160-1 and 1160-2, such as a lower spring, and coil 1120 may be connected to the two lower elastic members 1160-1 and 1160-2.
[0405] The upper elastic member 1150 may include: a first inner frame (or first interior) connected to the spool 1110; a first outer frame (or first exterior) connected to the housing 1140; and a first connecting portion configured to connect the first inner frame and the first outer frame to each other.
[0406] Additionally, each of the lower elastic members 1160-1 and 1160-2 may include: a second inner frame (or second interior) 1161 connected to the spool 1110; a second outer frame (or second exterior) 1162 connected to the housing 1140; and a second connecting portion 1163 configured to connect the second inner frame and the second outer frame to each other.
[0407] The two lower elastic members 1160-1 and 1160-2 can be electrically connected to the coil 1120. For example, one end of the coil 1120 can be connected to the second inner frame 1161 of the first lower elastic member 1160-1, and the other end of the coil 1120 can be connected to the second inner frame 1161 of the second lower elastic member 1160-2.
[0408] The first lower elastic member 1160-1 may include a first terminal 1164-1, and the second lower elastic member 1160-2 may include a second terminal 1164-2 (see...). Figure 21 The drive signal for the coil 1120 can be input from the outside via the first terminal 1164-1 and the second terminal 1164-2.
[0409] The first terminal 1164-1 can be bent from the second outer frame 1162 of the first lower elastic member 1160-1 to the outer surface (or "first outer surface") of the base 1210.
[0410] The second terminal 1164-2 can be bent from the second outer frame 1162 of the second lower elastic member 1160-2 to the outer surface (or “first outer surface”) of the base 1210.
[0411] At least a portion of each of the first terminal 1164-1 and the second terminal 1164-2 may be disposed on the outer surface of the retainer 1600 and may be electrically connected to the circuit board 1190. The circuit board 1190 may provide a drive signal to the coil 1120 via the first terminal 1164-1 of the first lower elastic member 1160-1 and the second terminal 1164-2 of the second lower elastic member 1160-2.
[0412] For example, the first terminal 1164-1 may be disposed in the first recess 1022A of the base 1210 and the first recess portion 1024a of the retainer 1600, and the second terminal 1164-2 may be disposed in the second recess 1022B of the base 1210 and the second recess portion 1024b of the retainer 1600.
[0413] The first terminal 1164-1 can be electrically connected to the first pad (or first terminal) 1019A of the circuit board 1190 via the first solder 1035A, and the second terminal 1164-2 can be electrically connected to the second pad (or second terminal) 1019B of the circuit board 1190 via the second solder 1035B. The first pad 1019A and the second pad 1019B can be formed on the first board 1191.
[0414] The camera module 1200 may also include protective material 1025 configured to wrap around terminals 1164-1 and 1164-2 and solders 1035A and 1035B.
[0415] The first protective material 1025a may be disposed in the first recess 1022A of the base 1210 and the first recess portion 1024a of the retainer 1600 to surround the first solder 1035A and the first terminal 1164-1. The first protective material 1025a can protect the first solder 1035A and the first terminal 1164-1 from external impacts and can prevent the reliability of the conductive connection between the first solder 1035A and the first terminal 1164-1 from deterioration.
[0416] Additionally, a second protective material 1025b may be disposed in the second recess 1022B of the base 1210 and the second recess portion 1024b of the retainer 1600 to surround the second solder 1035B and the second terminal 1164-2. The second protective material 1025b can protect the second solder 1035B and the second terminal 1164-2 from external impacts and can prevent the reliability of the conductive connection between the second solder 1035B and the second terminal 1164-2 from deterioration.
[0417] Coil 1120 may be disposed on the outer surface of the spool 1110. For example, coil 1120 may be wound in a loop on the outer surface of spool 1110; however, this disclosure is not limited thereto. A drive signal may be provided to coil 1120. The drive signal may be in the form of current or voltage, and may include at least one of DC and AC signals.
[0418] Magnet 1130 may be disposed on the side of housing 1140. Magnet 1130 may include a plurality of magnets 1130-1 to 1130-4, and the magnet 1130 disposed on housing 1140 may correspond to coil 1120 in a direction perpendicular to optical axis OA, may be opposite to coil or may overlap with coil.
[0419] Due to the interaction between the magnet 1130 and the coil 1120 with the provided drive signal, the spool 1110 and the lens module 1400 connected thereto can move along the optical axis, thereby controlling the displacement of the spool 1110 along the optical axis and thus enabling AF drive.
[0420] In addition, in order to perform AF feedback drive, the lens moving device 1100 of the camera module 1200 may also include a sensing magnet (not shown) disposed on the linear axis 1110 and an AF position sensor (e.g., Hall sensor) (not shown) disposed on the housing 1140 and / or base 1210, so as to correspond to, be opposite to or overlap with the sensing magnet.
[0421] Additionally, the lens moving device 1100 may also include an AF circuit board disposed on the housing 1140, the AF circuit board being configured to allow an AF position sensor to be mounted thereon. In this case, the circuit board can be electrically connected to the coil 1120 and the AF position sensor, and drive signals can be provided to each of the coil 1120 and the AF position sensor via the circuit board.
[0422] When the AF position sensor is implemented by a Hall sensor only, an external drive signal can be provided to the circuit board, and the drive signal can be provided to the coil 1120 through the circuit board and two elastic members 1160-1 and 1160-2 connected to the circuit board.
[0423] When the AF position sensor is a driver IC that includes a Hall sensor, a drive signal is provided from the AF position sensor to the circuit board, and the drive signal can be provided to the coil 1120 through two elastic members 1160-1 and 1160-2 connected to the circuit board.
[0424] The AF position sensor outputs a signal based on the magnetic field sensed by the sensing magnet due to the movement of the spool 1110. The output of the AF position sensor can be transmitted to a circuit board and can also be output externally via the circuit board.
[0425] In another embodiment, the AF position sensor may be mounted on a linear shaft, and the sensing magnet may be mounted on a housing. Additionally, the lens moving device 1100 may also include a balancing magnet mounted on the linear shaft 1110 and positioned on the opposite side of the sensing magnet.
[0426] According to another embodiment, the camera module may include a housing coupled to the lens module 1400, the housing being configured to fix the lens module 1400, rather than... Figure 13 The lens moving device 1100. The housing can be attached to or fixed to the upper surface of the retainer 1600. The housing attached or fixed to the retainer 1600 can remain stationary, and the position of the housing can be stationary when attached to the retainer 1600.
[0427] In addition to the AF lens moving device, the OIS lens moving device according to another embodiment may further include: an OIS coil configured to correspond to, be opposite to, or overlap with the magnet 1130 along the optical axis; a printed circuit board disposed on the base 1210; and a support member, one end of which is connected to the upper elastic member 1150 and the other end of which is conductively connected to the printed circuit board. Furthermore, the OIS lens moving device may also include an OIS position sensor conductively connected to the printed circuit board and disposed on the base 1210.
[0428] The retainer 1600 can be positioned below the base 1210 of the lens moving device 1100.
[0429] For example, the retainer 1600 can be positioned below the lens module 1400.
[0430] The retainer 1600 may include an opening 1501 corresponding to the image sensor 1810.
[0431] An opening 1501 in the retainer 1600 may be formed through the retainer 1600 along the optical axis and may be referred to as a “hole” or “through hole”.
[0432] For example, an opening 1501 may be formed through the center of the retainer 1600 and may be configured to correspond to or be opposite to the image sensor 1810 (e.g., the effective area of the image sensor 1810).
[0433] The filter 1610 may be disposed in the opening 1501 of the retainer 1600. The filter 1610 may have a plate shape or a flat quadrilateral shape; however, this disclosure is not limited thereto.
[0434] The shape of the opening 1501 of the retainer 1600 may be consistent with the shape of the filter 1610, or may have a shape suitable for receiving the filter 1610. For example, when viewed from above, the shape of the opening 1501 may be polygonal (e.g., quadrilateral), circular, or elliptical; however, this disclosure is not limited thereto.
[0435] Light that has passed through lens module 1400 can be incident on image sensor 1810 via filter 1610.
[0436] Filter 1610 can be used to prevent specific frequency band components of light that have passed through lens module 1400 from incident on image sensor 1810. For example, filter 1610 can be an infrared cut-off filter; however, this disclosure is not limited thereto. In another embodiment, the filter can be an infrared pass filter. For example, filter 1610 can be arranged parallel to an xy plane perpendicular to the optical axis OA.
[0437] The first adhesive member 1310 can be disposed between the filter 1610 and the retainer 1600, and can connect the filter 1610 and the retainer 1600 to each other.
[0438] The filter 1610 can be attached to the inner surface of the opening 1501 of the retainer 1600 via a first adhesive member 1310. Here, the first adhesive member 1310 can be epoxy resin, thermosetting adhesive (e.g., thermosetting epoxy resin), or UV-curing adhesive (e.g., UV-curing epoxy resin).
[0439] Another embodiment may also include a foreign matter adsorption unit 2310, which will be referred to below. Figures 30 to 34b The following description is provided. Another embodiment may also include foreign matter adsorption units 2310-1, 2310-2, 2310-3, 2310A, 2310B, 2310C, and 2310D, and a light-blocking member 2320, which will be referred to... Figures 36 to 43 Describe it.
[0440] The second adhesive member 1612 can connect or attach the base 1210 of the lens moving device 1100 to the retainer 1600. For example, the second adhesive member 1612 can be disposed between the lower surface of the base 1210 and the upper surface of the retainer 1600, and can bond the two together.
[0441] In addition to its adhesive function, the second adhesive member 1612 can also be used to prevent foreign objects from entering the lens moving device 1100. For example, the second adhesive member 1612 can be epoxy resin, thermosetting adhesive, or UV-curing adhesive.
[0442] For example, the second adhesive member 1612 may be disposed on the upper surface of the retainer 1600 in a circumferential annular shape having an opening 1501 surrounding the retainer 1600; however, this disclosure is not limited thereto.
[0443] The retainer 1600 can be disposed on the circuit board 1190 and can support the lens moving device 1100. For example, the lower surface of the base 1210 of the lens moving device 1100 and the upper surface of the retainer 1600 can be opposite each other along the optical axis, and the two can be attached to each other by the second adhesive member 1612.
[0444] For example, the lower surface of the base 1210 of the lens moving device 1100 may be adjacent to the upper surface of the retainer 1600 and may be supported by the upper surface of the retainer 1600.
[0445] Circuit board 1190 can be a printed circuit board (PCB).
[0446] The circuit board 1190 may be disposed below the retainer 1600 and may include: a first board 1191; a second board 1192 connected to the first board 1191; a third board 1193 connected to the second board 1192; and a connector 1194 connected to the third board 1193.
[0447] The retainer 1600 can be attached or fixed to the upper surface of the circuit board 1190 by an adhesive member (not shown), such as epoxy resin, thermosetting adhesive, or UV-curing adhesive. In this case, the adhesive member can be disposed between the lower surface of the retainer 1600 and the upper surface of the circuit board 1190.
[0448] The image sensor 1810 and circuit element 1095 can be mounted on the circuit board 1190.
[0449] For example, circuit element 1095 may be disposed on or mounted to the first board 1191. Additionally, circuit board 1190 may include at least one terminal disposed on or formed on the first board 1191. For example, the number of terminals on circuit board 1190 may be multiple, and the multiple terminals of circuit board 1190 may be electrically connected to image sensor 1810 and circuit element 1095.
[0450] The sensor base 1600, image sensor 1810, and circuit element 1095 may be disposed on the first board 1191. For example, each of the first board 1191 and the third board 1193 may be a rigid printed circuit board, and the second board 1192 may be a flexible printed circuit board configured to electrically connect the first board 1191 and the third board 1193 to each other; however, this disclosure is not limited thereto. In another embodiment, at least one of the first to third boards may be a rigid printed circuit board or a flexible printed circuit board. In another embodiment, the first to third boards may be integrated into a single board.
[0451] Image sensor 1810 can be mounted on circuit board 1190 and can be electrically connected to circuit board 1190. At this time, image sensor 1810 can include an effective area (or effective image area) on which light that has passed through filter 1610 is incident, thereby forming an image included in the light.
[0452] The optical axis of the image sensor 1810 and the optical axis of the lens module 1400 can be aligned with each other. The image sensor 1810 can convert light incident on the effective area into an electrical signal and can output the converted electrical signal.
[0453] For example, the effective areas of the filter 1610 and the image sensor 1810 can be spaced apart from each other and opposite each other along the optical axis (OA).
[0454] Circuit element 1095 may be electrically connected to first board 1191 and may constitute a controller configured to control image sensor 1810 and lens moving device 1100. For example, circuit element 1095 may include at least one of a capacitor, memory, controller, sensor (e.g., motion sensor), and integrated circuit (IC).
[0455] Circuit board 1190 can be electrically connected to lens moving device 1100.
[0456] For example, circuit board 1190 may be electrically connected to the first elastic member 1160-1 and the second elastic member 1160-2 of lens moving device 1100. For example, circuit board 1190 may include terminals electrically connected to the first elastic member 1160-1 and the second elastic member 1160-2 of lens moving device 1100 via solder.
[0457] Alternatively, in another embodiment, circuit board 1190 may be electrically connected to the circuit board of the lens moving device.
[0458] For example, a drive signal can be provided to the coil 1120 of the lens moving device 1100 via circuit board 1190. Alternatively, in another embodiment, the drive signal can be provided to the AF position sensor (or OIS position sensor) via circuit board 1190. Additionally, the output of the AF position sensor (and / or OIS position sensor) can be transmitted to circuit board 1190.
[0459] Connector 1194 can be electrically connected to circuit board 1190 and can be provided with a port for conductive connection to external devices.
[0460] although Figure 13 Not shown, but another embodiment may include a reinforcing member disposed below the circuit board 1190 and attached to the lower surface of the circuit board 1190 and the lower surface of the image sensor. Here, the reinforcing member (which is a plate member with a predetermined thickness and rigidity) can hermetically seal the through holes of the circuit board 1190, stably support the circuit board and the image sensor, and suppress damage to the circuit board due to external impacts or contact. In addition, the reinforcing member can improve the heat dissipation effect of dissipating the generated heat from the image sensor to the outside.
[0461] For example, the reinforcing member may be made of a metallic material (such as SUS or aluminum) exhibiting high thermal conductivity; however, this disclosure is not limited thereto. In another embodiment, the reinforcing member may be made of glass epoxy, plastic, or synthetic resin.
[0462] In embodiments with reinforcing members, the circuit board 1190 may include openings or through holes, and the image sensor may be disposed in the openings or through holes of the circuit board, and the image sensor may be disposed on the upper surface of the reinforcing member.
[0463] Additionally, the reinforcing member can be electrically connected to the grounding terminal of the circuit board 1190, thereby enabling the reinforcing member to function as a ground and be configured to protect the camera module from electrostatic discharge (ESD).
[0464] According to another embodiment, the camera module may further include a blocking member disposed on the upper surface of the filter 1610. The blocking member may be referred to as a "mask".
[0465] For example, a blocking member may be disposed in the edge region of the upper surface of the filter 1610, and may be used to block at least a portion of the light that has passed through the lens module 1400 and is incident on the edge region of the filter 1610 from passing through the filter 1610. For example, the blocking member may be attached to or connected to the upper surface of the filter 1610 by an adhesive member.
[0466] For example, when viewed from above, the filter 1610 may have a quadrilateral shape, and the blocking member may be formed symmetrically with respect to the filter 1610 along each side of the upper surface of the filter 1610. For example, the blocking member may be formed to have a fixed width on each side of the upper surface of the filter 1610. For example, the blocking member may be made of an opaque material. For example, the blocking member may be configured as an opaque adhesive material coated on the filter 1610 or as a film attached to the filter 1610.
[0467] The effective areas of the filter 1610 and the image sensor 1810 can be configured to be opposite to or overlap each other along the optical axis, and the blocking member may not overlap with the effective area of the image sensor 1810 along the optical axis. In addition, at least a portion of the blocking member may overlap with the terminals of the circuit board 1190 and / or with the wires along the optical axis.
[0468] Since the blocking member is configured such that at least a portion of the blocking member overlaps with the terminals of the circuit board 1190 and / or with the wires, light that has passed through the lens module 1400 and is directed toward the terminals of the circuit board 1190 and / or the wires can be blocked, thereby preventing flashes and thus preventing distortion or deterioration of the image formed on the image sensor 1810.
[0469] Reference Figures 16a to 18b The retainer 1600 may include an inner surface 1004.
[0470] The inner surface 1004 may be referred to as the inner wall or inner circumferential surface. The opening 1501 of the retainer 1600 may be formed by the inner surface 1004 of the retainer 1600.
[0471] When viewed from above and when the opening 1501 is quadrilateral in shape, the inner surface 1004 of the retainer 1600 may include four inner surfaces 1004A to 1004D.
[0472] Although not in Figure 16a As shown, however, for example, a recess may be formed in at least one of the four inner surfaces 1004A to 1004D.
[0473] The inner surface 1004 of the retainer 1600 may include: a first surface 1003A, adjacent to or adjacent to the upper surface 1051a of the retainer 1600; and a second surface 1003B, located between the first surface 1003A and the lower surface 1051b of the retainer 1600. The first surface 1003A and the second surface 1003B may be connected to each other or may be in contact with each other.
[0474] Based on the upper or lower surface of the retainer 1600, the tilt angle of the first surface 1003A and the tilt angle of the second surface 1003B are different from each other.
[0475] The upper surface 1051a of the retainer 1600 may be the surface opposite to the base 1210 (and / or the lens module 1400), and the lower surface 1051b of the retainer 1600 may be the surface opposite to the upper surface 1051a.
[0476] For example, the second surface 1003B can connect the first surface 1003A and the lower surface 1051b of the retainer 1600 to each other.
[0477] The first surface 1003A may be an inclined surface that is tilted at a predetermined angle θ from the upper surface 1051a of the retainer 1600. For example, the predetermined angle θ may be an interior angle between the upper surface 1051a and the first surface 1003A.
[0478] The predetermined angle θ can be an obtuse angle. For example, θ can be in the range of 100 degrees to 160 degrees. In another embodiment, θ can be in the range of 120 degrees to 150 degrees. In another embodiment, θ can be in the range of 130 degrees to 145 degrees.
[0479] The first surface 1003A can be an inclined surface tilted at a predetermined angle θ.
[0480] exist Figure 16b In this embodiment, the first surface 1003A is a single inclined surface; however, this disclosure is not limited thereto. In another embodiment, the first surface may include multiple inclined surfaces.
[0481] For example, the plurality of inclined surfaces of the first surface 1003A may have different inclination angles. Alternatively, the angle of one of the inclined surfaces of the first surface 1003A may be different from the angle of at least one of the other inclined surfaces.
[0482] Additionally, the second surface 1003B may be a surface perpendicular to the upper surface 1051a of the retainer 1600; however, this disclosure is not limited thereto. For example, the interior angle between the first surface 1003A and the second surface 1003B may be an obtuse angle.
[0483] Each of the first surface 1003A and the second surface 1003B may be a flat surface; however, this disclosure is not limited thereto. In another embodiment, at least one of the first surface 1003A and the second surface 1003B may be a curved surface.
[0484] The length L1 of the first surface 1003A along the direction from the first corner 1009A of the holder 1600 to the second corner 1009B (hereinafter referred to as the "first length") may be greater than the length L2 of the second surface 1003B along the optical axis (hereinafter referred to as the "second length") (L1>L2); however, this disclosure is not limited thereto. In another embodiment, the first length may be equal to or less than the second length.
[0485] For example, the first corner 1009A may be the portion where the upper surface 1051a and the first surface 1003A of the retainer 1600 are connected to each other. For example, the first corner 1009A may be the upper end of the inner surface 1004 of the retainer 1600.
[0486] For example, the second corner 1009B may be the portion where the first surface 1003A and the second surface 1003B of the retainer 1600 are connected to each other.
[0487] The filter 1610 can be disposed in the opening 1501 of the retainer 1600.
[0488] When viewed from above, the area of the opening 1501 of the retainer 1600 can be larger than the area of the filter 1610. For example, the area of the opening 1501 formed by the second surface 1003B can be larger than the area of the filter 1610.
[0489] The filter 1610 can be positioned in the opening 1501 of the retainer 1600 using a clamp or support. In this case, the filter 1610 can be positioned in the opening 1501 of the retainer 1600 such that the outer surface of the filter 1610 faces the inner surface 1004 of the retainer 1600. Next, a first adhesive member 1310 can be injected or supplied into the space between the outer surface of the filter 1610 and the inner surface of the retainer 1600, and the injected first adhesive member 1310 can be cured. For example, the first adhesive member 1310 can be a UV-curable adhesive member, such as UV epoxy resin.
[0490] The side surface of the filter 1610 can correspond to the inner surface 1004 of the holder 1600 in a direction perpendicular to the optical axis OA, or it can be opposite to the inner surface of the holder, or it can overlap with the inner surface of the holder.
[0491] For example, at least a portion of the filter 1610 may be spaced apart from the retainer 1600. For example, at least a portion of the side surface of the filter 1610 may be spaced apart from the inner surface 1004 of the retainer 1600.
[0492] The first inner surface 1004A and the second inner surface 1004B can be opposite each other, and the third inner surface 1004C and the fourth inner surface 1004D can be opposite each other.
[0493] The third inner surface 1004C can connect one end of the first inner surface 1004A to one end of the second inner surface 1004B, and the fourth inner surface 1004D can connect the other end of the first inner surface 1004A to the other end of the second inner surface 1004B.
[0494] The retainer 1600 may be provided with a boss 1058, which is disposed around the opening 1501 and protrudes from the upper surface 1051a of the retainer 1600. For example, the boss 1058 may protrude from the upper surface 1051a of the retainer 1600 in the direction of the optical axis or in the vertical direction.
[0495] For example, the boss 1058 may be disposed on the upper surface 1051a of the retainer 1600 along the inner surface 1004 of the retainer 1600. For example, when viewed from above, the shape of the boss 1058 may be consistent with or similar to the shape of the opening 1501 (e.g., quadrilateral shape); however, this disclosure is not limited thereto.
[0496] For example, the boss 1058 may be disposed in the region where the upper surface 1051a of the retainer 1600 and the first surface 1003A of the inner surface 1004 of the retainer 1600 are connected to each other. For example, the lower part or lower end of the boss 1058 may be adjacent to or may contact the first surface 1003A of the inner surface 1004 of the retainer 1600.
[0497] In order to secure the filter 1610 to the retainer 1600, the first adhesive member 1310 is injected or coated on the inner surface 1004 of the retainer 1600, and the boss 1058 can be used to prevent the first adhesive member 1310 from overflowing onto the upper surface of the retainer 1600.
[0498] Additionally, the upper surface of the boss 1058 can be positioned higher than the upper surface 610 of the filter 1610 disposed in the opening 1501 of the retainer 1600 along the optical axis; however, this disclosure is not limited thereto. In another embodiment, the upper surface of the boss 1058 can be positioned lower than the upper surface of the filter 1610.
[0499] In the retainer 1600 according to another embodiment, the boss 1058 can be omitted.
[0500] The retainer 1600 may also include a stop (not shown) disposed adjacent to the opening 1501 and projecting from the upper surface of the retainer 1600 along the optical axis. The stop may be a protrusion.
[0501] The lower end of the lens module 1400, which moves along the optical axis by AF drive, can be adjacent to the upper surface of the stop. However, due to the presence of the stop, the lower end of the lens module 1400 can no longer move below the stop. That is, during AF drive, the stop can prevent collision between the lens module 1400 and the upper surface of the filter 1610.
[0502] The retainer 1600 may include a foreign matter collection portion 1506 in the shape of a recess recessed from the upper surface 1051a. The foreign matter collection portion 1506 may be configured adjacent to the boss 1058; however, the present disclosure is not limited thereto. For example, the foreign matter collection portion 1506 may be located outside the boss 1058 based on the boss 1058; however, the present disclosure is not limited thereto.
[0503] Additionally, the foreign matter collection section 1506 may be formed adjacent to or adjacent to the boss 1058; however, this disclosure is not limited thereto. In another embodiment, the foreign matter collection section may be formed spaced apart from the boss.
[0504] The foreign object collection unit 1506 can collect introduced foreign objects from the lens moving device 1100. The foreign object collection unit 1506 can be referred to as a dust collector. Figure 16a In this embodiment, the retainer 1600 may include four foreign matter collection sections 1506; however, this disclosure is not limited thereto. In another embodiment, one or more foreign matter collection sections may be provided.
[0505] The retainer 1600 may have at least one recessed portion 1024a and 1024b recessed from the outer surface 1052. Here, the recessed portion 1024a and 1024b may also be referred to as a "recess" or "recess".
[0506] For example, the retainer 1600 may include four outer surfaces and may include a first recessed portion 1024a and a second recessed portion 1024b, the first and second recessed portions being formed in any one of the outer surfaces in a spaced-apart manner.
[0507] The first recessed portion 1024a and the second recessed portion 1024b may correspond to or be opposite to the terminals 1164-1 of the first elastic member 1160-1 and the terminals 1164-2 of the second elastic member 1160-2 of the lower elastic member 1160.
[0508] Each of the first recess 1024a and the second recess 1024b may include an upper opening that opens to the upper surface 1051a of the retainer 1600 and a lower opening that opens to the lower surface 1051b of the retainer 1600.
[0509] The first recess 1024a and the second recess 1024b of the retainer 1600 can be connected to the recesses 1022A and 1022B formed in the outer surface of the base 1210 of the lens moving device 1100 (see...). Figure 21 (Corresponding or relative)
[0510] The retainer 1600 may include a boss 1604a protruding from its lower surface 1051b.
[0511] For example, the lower surface 1051b of the retainer 1600 may be a surface located on the opposite side of the upper surface 1051a of the retainer 1600.
[0512] The boss 1604a of the retainer 1600 can be positioned to be connected to or adjacent to the edge of the lower surface 1051b of the retainer 1600, and can also be adjacent to the outer surface of the retainer 1600.
[0513] When viewed from below, the boss 1604a may be quadrilateral in shape. A third adhesive member may be disposed between the lower surface 1051c of the boss 1604a of the retainer 1600 and the circuit board 1190. For example, the third adhesive member may be a thermosetting adhesive member, such as a thermosetting epoxy resin.
[0514] A protrusion 1048 may be formed on the lower surface 1051c of the boss 1604a of the retainer 1600, and the protrusion is configured to engage with a recess or hole 1093 formed in the circuit board 1190 (see [link]). Figure 14 ).
[0515] Reference Figure 17b The first adhesive member 1310 may be disposed on at least one of the first surface 1003A and the second surface 1003B of the inner surface 1004 of the retainer 1600.
[0516] For example, the first adhesive member 1310 may include a first portion and a second portion, the first portion being disposed between a first surface 1003A of the inner surface 1004 of the retainer 1600 and a region of the outer surface of the filter 1610, and the second portion being disposed between a second surface 1003B of the inner surface 1004 of the retainer 1600 and another region of the outer surface of the filter 1610.
[0517] The first adhesive member 1310 may be adjacent to the boss 1058 of the retainer 1600.
[0518] The filter 1610 may not overlap with the retainer 1600 along the optical axis.
[0519] The filter 1610 may overlap with at least one of the first surface 1003A and the second surface 1003B of the inner surface 1004 of the holder 1600 in a direction perpendicular to the optical axis.
[0520] Reference Figure 16b and Figure 18b The thickness of filter 1610 may be less than the distance from the lower surface 1051b to the upper surface 1051a of holder 1600; however, this disclosure is not limited thereto. In another embodiment, the thickness of filter 1610 may be equal to or greater than the distance from the lower surface 1051b to the upper surface 1051a of holder 1600. For example, the thickness of filter 1610 may be the length of filter 1610 along the optical axis.
[0521] The lower surface 1061b of the filter 1610 may be positioned above the lower surface 1051b of the retainer 1600 or at the same height as the lower surface of the retainer; however, this disclosure is not limited thereto.
[0522] For example, based on the upper surface of the image sensor 1810 or the upper surface of the circuit board 1190, the lower surface 1061b of the filter 1610 may be positioned at the same height as the lower surface 1051b of the retainer 1600; however, this disclosure is not limited thereto.
[0523] In another embodiment, the lower surface 1061b of the filter 1610 may be positioned higher than the lower surface 1051b of the retainer 1600. In another embodiment, the lower surface 1061b of the filter 1610 may be positioned lower than the lower surface 1051b of the retainer 1600.
[0524] For example, based on the upper surface of the image sensor 1810 or the upper surface of the circuit board 1190, the lower surface 1061b of the filter 1610 can be positioned above the lower surface 1051b of the holder 1600 and below the second corner 1009B of the holder 1600.
[0525] Alternatively, for example, based on the upper surface of the image sensor 1810 or the upper surface of the circuit board 1190, the upper surface 1061a of the filter 1610 can be positioned higher than the upper surface 1051a of the holder 1600, or positioned at the same height as the upper surface of the holder. For example, the upper surface 1061a of the filter 1610 can be positioned lower than the first corner 1009A of the holder 1600, or positioned at the same height as the first corner of the holder.
[0526] Alternatively, for example, based on the upper surface of the image sensor 1810 or the upper surface of the circuit board 1190, the upper surface 1061a of the filter 1610 can be positioned above the second corner 1009B of the retainer 1600.
[0527] In another embodiment, the upper surface 1061a of the filter 1610 may be positioned below the second corner 1009B of the retainer 1600.
[0528] Reference Figure 18b The first adhesive member 1310 may include: a first portion 1031-1 disposed between a first region 1055A on the outer surface of the filter 1610 and a first surface 1003A on the inner surface 1004 of the retainer 1600; and a second portion 1031-2 disposed between a second region 1055B on the outer surface of the filter 1610 and a second surface 1003B on the inner surface 1004 of the retainer 1600.
[0529] For example, the first region 1055A of the filter 1610 may be a region positioned above the second corner 1009B of the retainer 1600 based on the second corner 1009B, and the second region 1055B may be a region positioned below the second corner 1009B.
[0530] The first region 1055A of the filter 1610 can be positioned above the second region 1055B of the filter 1610. For example, the second region 1055B of the filter 1610 can be positioned closer to the image sensor 1810 than the first region 1055A.
[0531] The first portion 1031-1 of the first adhesive member 1310 can connect the first surface 1003A of the inner surface 1004 of the retainer 1600 to the first region 1055A of the outer surface of the filter 1610, and can attach or fix the first surface 1003A and the first region 1055A to each other.
[0532] For example, the length of the first portion 1031-1 of the first adhesive member 1310 in the horizontal direction may increase from the lower surface 1051b to the upper surface 1051a of the retainer 1600. Additionally, the length of the second portion 1031-2 of the first adhesive member 1310 in the horizontal direction may be uniform or fixed. For example, the horizontal direction may be perpendicular to the optical axis.
[0533] Additionally, the second portion 1031-2 of the first adhesive member 1310 can connect the second surface 1003B of the inner surface 1004 of the retainer 1600 to the second region 1055B of the outer surface of the filter 1610, and can attach or fix the second surface 1003B and the second region 1055B to each other.
[0534] For example, the distance between the first region 1055A of the filter 1610 and the first surface 1003A of the inner surface 1004 of the retainer 1600 may gradually increase in the direction from the lower surface 1051b to the upper surface 1051a of the retainer 1600.
[0535] Additionally, for example, the distance between the second region 1055B of the filter 1610 and the second surface 1003B of the inner surface 1004 of the retainer 1600 from the lower surface 1051b of the retainer 1600 to the second corner 1009B of the retainer 1600 may be uniform or fixed; however, this disclosure is not limited thereto.
[0536] In another embodiment, at least one protrusion (not shown) opposite to the outer surface of the filter 1610 may be formed on at least one of the first surface 1003A and the second surface 1003B of the retainer 1600.
[0537] Since the first surface 1003A of the inner surface 1004 of the retainer 1600 is an inclined surface, and d1 gradually increases in the direction from the lower surface 1051b to the upper surface 1051a of the retainer 1600, the first adhesive member 1310 can be easily injected into the space between the inner surface 1004 of the retainer 1600 and the outer surface of the filter 1610.
[0538] Furthermore, since the distance between the first region 1055A of the filter 1610 and the first surface 1003A of the inner surface 1004 of the retainer 1600 gradually increases in the direction from the lower surface 1051b to the upper surface 1051a of the retainer 1600, the bonding area between the first adhesive member 1310 and the inner surface 1004 of the retainer 1600 can be increased, thereby increasing or improving the adhesive force between the retainer 1600 and the filter 1610.
[0539] The retainer of a standard camera module includes a support portion, at least a portion of which overlaps with the filter along the optical axis, and the support portion is configured to support the filter. This camera module has the following limitations.
[0540] First, when designing a camera module, the thickness of the camera module along the optical axis is limited by the thickness of the support portion. For example, the thickness of the support portion can be approximately 0.17 mm.
[0541] Furthermore, a reduced distance between the image sensor and the lens module may decrease the freedom of lens selection. Additionally, a reduced distance between the filter and the lens module may limit the travel of the lens movement along the optical axis, potentially making it difficult to ensure the reliability of the AF drive.
[0542] In this embodiment, the adhesive force between the filter 1610 and the retainer 1600 is increased, so that even if the retainer 1600 is not provided with a support portion that can support the filter 1610, the filter 1610 can be stably attached and fixed to the retainer 1600 by the first adhesive member 1310.
[0543] Furthermore, the retainer 1600 does not have a support portion that overlaps with the filter 1610 along the optical axis. Therefore, in this embodiment, the height margin of the camera module along the optical axis can be increased, and the reduction in the distance between the image sensor and the lens module can be prevented, thereby increasing the freedom of lens selection. In this embodiment, for example, the height margin along the optical axis can be ensured by the thickness of the support portion (approximately 0.17 mm).
[0544] Furthermore, the distance between the filter 1610 and the lens module 1400 can be sufficiently ensured. Therefore, in this embodiment, when the thickness of the filter 1610 is large, the travel limitation of the lens moving device along the optical axis can be suppressed, thereby improving the reliability of the AF drive.
[0545] For example, the thickness of the filter 1610 of the camera module according to the embodiment may be 0.2 mm or greater. For example, the thickness of the filter 1610 may be in the range of 0.2 mm to 5 mm. For example, the thickness of the filter 1610 may be in the range of 0.2 mm to 1 mm. In addition, for example, the thickness of the filter 1610 may be in the range of 0.4 mm to 1 mm.
[0546] For example, filter 1610 can be a glass filter.
[0547] Figure 19 This is a cross-sectional view of a portion of a camera module 1200 according to another embodiment. Figure 20 yes Figure 19 An enlarged view of the dashed section 1011. Figure 20 The first adhesive component 1310 is omitted.
[0548] Reference Figure 19 and Figure 20 The lower surface 1061b of the filter 1610 can be positioned higher than the lower surface 1051b of the retainer 1600 and lower than the second corner 1009B of the retainer 1600. Additionally, the upper surface 1061a of the filter 1610 can be positioned lower than the upper surface 1051a of the retainer 1600 and higher than the second corner 1009B of the retainer 1600.
[0549] For example, the lower surface 1061b of the filter 1610 can be positioned above the third corner 1009C of the inner surface 1004 of the retainer 1600 and below the second corner 1009B of the retainer 1600. Additionally, the upper surface 1061a of the filter 1610 can be positioned below the first corner 1009A of the retainer 1600 and above the second corner 1009B of the retainer 1600. For example, the third corner 1009C can be the portion where the second surface 1003B of the inner surface 1004 of the retainer 1600 connects to the lower surface of the retainer 1600.
[0550] The thickness of filter 1610 can be less than the distance h1 from the lower surface 1051b to the upper surface 1051a of retainer 1600.
[0551] d1 can be the distance between the outer surface of the filter 1610 and the first surface 1003A of the inner surface 1004 of the retainer 1600. For example, d1 can be the distance between the first region 1055A of the outer surface of the filter 1610 and the first surface 1003A of the inner surface 1004 of the retainer 1600. d1 can gradually increase along the direction from the lower surface 1051b to the upper surface 1051a of the retainer 1600.
[0552] For example, d1 can be in the range of 0.4 mm to 0.6 mm. For example, d1 can be in the range of 0.4 mm to 0.5 mm. Considering the size of the needle of the adhesive syringe configured to inject the first adhesive member 1310, d1 is preferably greater than 0.4 mm. This is because if d1 is less than 0.4 mm, it is not easy and smooth to apply or inject the first adhesive member 1310 onto the inner surface 1004 of the retainer 1600. Furthermore, if d1 is greater than 0.6 mm, the distance between the filter 1610 and the first surface 1003A of the inner surface 1004 of the retainer 1600 may be too large, thereby potentially increasing the size of the retainer and thus potentially increasing the amount of the first adhesive member used.
[0553] Alternatively, d2 can be the distance between the outer surface of the filter 1610 and the second surface 1003B of the inner surface 1004 of the retainer 1600. For example, d2 can be the distance between the second region 1055B of the outer surface of the filter 1610 and the second surface 1003B of the inner surface 1004 of the retainer 1600.
[0554] For example, d2 can be uniform or fixed from the lower surface 1051b of the retainer 1600 to the second corner 1009B.
[0555] For example, d2 can be in the range of 0.05 mm to 0.15 mm. For example, d2 can be in the range of 0.05 mm to 0.1 mm. If d2 is less than 0.05 mm, the distance between the outer surface of the filter 1610 and the inner surface of the retainer 1600 may be too small, and thus the retainer 1600 and the filter 1610 may collide with each other due to external impact, and therefore at least one of them may be damaged.
[0556] On the other hand, if d2 is greater than 0.15mm, the size of the retainer 1600 may increase, and therefore the size of the camera module according to the embodiment may increase.
[0557] Furthermore, the range of values for d2 is set considering the adhesive area of the first adhesive member 1310. This range takes into account the fact that the center of the filter 1610 shifts during the assembly of the retainer 1600 and the filter 1610. For example, if d2 is less than 0.05 mm, the area of the first adhesive member 1310 located between the inner surface of the retainer 1600 and the outer surface of the filter 1610 may be insufficient to stably bond the two together. On the other hand, if d2 is greater than 0.15 mm, the amount of the first adhesive member 1310 used may be excessively increased.
[0558] The length (or height) h2 of the first surface 1003A (which is an inclined surface) of the inner surface 1004 of the retainer 1600 along the optical axis can be equal to or less than the thickness (or height) of the filter 1610.
[0559] Since the retainer 1600 according to the embodiment does not have a support portion that overlaps with the filter 1610 along the optical axis, the distance between the filter 1610 and the lens module 1400 can be increased. As a result, the thickness limitation of the filter 1610 can be improved, and even if a filter 1610 with a large thickness is used, the travel limitation of the lens moving device along the optical axis can be suppressed, thereby improving the reliability of AF drive.
[0560] Figure 22 This is a cross-sectional view of a portion of a camera module including a retainer 1600A according to another embodiment.
[0561] Reference Figure 22 The inner surface 1007 of the retainer 1600A may include a first surface 1007A adjacent to or adjacent to the lower surface 1051b of the retainer 1600A and a second surface 1007B located between the first surface 1007A and the upper surface 1051a of the retainer 1600A.
[0562] For example, the second surface 1007B can connect the first surface 1007A and the upper surface 1051a (or boss 1058) of the retainer 1600A to each other.
[0563] The first surface 1007A may be an inclined surface that is tilted at a predetermined angle from the lower surface 1051b of the retainer 1600A. For example, the predetermined angle may be an interior angle between the lower surface 1051b of the retainer 1600A and the first surface 1007A.
[0564] The predetermined angle can be an obtuse angle, and for Figure 16b The description of the predetermined angle θ can be applied or, with necessary modifications, applied to the predetermined angle.
[0565] The first surface 1007A can be an inclined surface tilted at a predetermined angle. Figure 22 In this embodiment, the first surface 1007A is a single inclined surface; however, this disclosure is not limited thereto. In another embodiment, the first surface may include multiple inclined surfaces.
[0566] For example, the plurality of inclined surfaces of the first surface 1007A may have different inclination angles. Alternatively, the angle of one of the inclined surfaces of the first surface 1007A may be different from the angle of at least one of the other inclined surfaces.
[0567] Additionally, the second surface 1007B may be a surface perpendicular to the upper surface 1051a of the retainer 1600A; however, this disclosure is not limited thereto. For example, the interior angle between the first surface 1007A and the second surface 1007B may be an obtuse angle.
[0568] Each of the first surface 1007A and the second surface 1007B can be a flat surface; however, this disclosure is not limited thereto. In another embodiment, at least one of the first surface 1007A and the second surface 1007B can be a curved surface.
[0569] The first adhesive member 1310A can be disposed between the inner surface 1007 of the retainer 1600A and the outer surface of the filter 1610.
[0570] The first adhesive member 1310A may be disposed on at least one of the first surface 1007A and the second surface 1007B of the retainer 1600A.
[0571] The first adhesive member 1310A may include a first portion 1032-1 disposed between a first surface 1007A of the retainer 1600A and a first region of the outer surface of the filter 1610, and a second portion 1032-2 disposed between a second surface 1007B of the retainer 1600A and a second region of the outer surface of the filter 1610.
[0572] The first adhesive member 1310A may be spaced apart from the boss 1058; however, this disclosure is not limited thereto. In another embodiment, the first adhesive member may contact the boss 1058.
[0573] For example, the length of the first portion 1032-1 of the first adhesive member 1310A in the horizontal direction can gradually increase from the upper surface 1051a to the lower surface 1051b of the retainer 1600A.
[0574] The filter 1610 may not overlap with the retainer 1600A along the optical axis, but may overlap with at least one of the first surface 1007A and the second surface 1007B of the inner surface 1007 of the retainer 1600A along the direction perpendicular to the optical axis.
[0575] The thickness of filter 1610 may be less than the distance from the lower surface 1051b to the upper surface 1051a of holder 1600A; however, this disclosure is not limited thereto. In another embodiment, the former may be equal to or greater than the latter.
[0576] The lower surface of filter 1610 may be positioned above or at the same height as the lower surface 1051b of retainer 1600A; however, this disclosure is not limited thereto. In another embodiment, the lower surface of filter 1610 may be positioned above the lower surface 1051b of retainer 1600A. In yet another embodiment, the lower surface of filter 1610 may be positioned below the lower surface 1051b of retainer 1600A.
[0577] In another embodiment, the lower surface of the filter 1610 may be positioned above the lower surface 1051b of the retainer 1600A and below the second corner 1009B1 of the retainer 1600A.
[0578] Alternatively, for example, based on the upper surface of the image sensor 1810 or the upper surface of the circuit board 1190, the upper surface 1061a of the filter 1610 can be positioned below the upper surface 1051a of the holder 1600A.
[0579] Alternatively, for example, based on the upper surface of the image sensor 1810 or the upper surface of the circuit board 1190, the upper surface 1061a of the filter 1610 can be positioned above the second corner 1009B1 of the retainer 1600A and below the upper surface 1051a of the retainer 1600A. In another embodiment, the upper surface 1061a of the filter 1610 can be positioned below the second corner 1009B1 of the retainer 1600A. In yet another embodiment, based on the upper surface of the image sensor 1810 or the upper surface of the circuit board 1190, the upper surface 1061a of the filter 1610 can have the same height as the second corner 1009B1 of the retainer 1600A.
[0580] The first adhesive member 1310A may include a first portion 1032-1 disposed between a first region 1056a on the outer surface of the filter 1610 and a first surface 1007A on the inner surface 1007 of the retainer 1600A, and a second portion 1032-2 disposed between a second region 1056b on the outer surface of the filter 1610 and a second surface 1007B on the inner surface 1007 of the retainer 1600A. In this case, the first region 1056a of the filter 1610 may be a region positioned below the second corner 1009B1 of the retainer 1600A based on the second corner 1009B1, and the second region 1056b may be a region positioned above the second corner 1009B1.
[0581] For example, the first corner 1009A1 of the retainer 1600A may be the portion where the lower surface 1051b and the first surface 1007A of the retainer 1600 are connected to each other. For example, the first corner 1009A1 may be the lower end of the inner surface 1007 of the retainer 1600A.
[0582] For example, the second corner 1009B1 may be the part where the first surface 1007A and the second surface 1007B of the retainer 1600A are connected to each other.
[0583] For example, the first region 1056a of the filter 1610 can be positioned closer to the image sensor 1810 than the second region 1056b.
[0584] The first portion 1032-1 of the first adhesive member 1310A can connect the first surface 1007A of the inner surface 1007 of the retainer 1600A to the first region 1056a of the outer surface of the filter 1610, and can attach or fix the first surface 1007A and the first region 1056a to each other.
[0585] For example, the length of the first portion 1032-1 of the first adhesive member 1310A in the horizontal direction may increase along the direction from the upper surface 1051a to the lower surface 1051b of the retainer 1600A. Additionally, the length of the second portion 1032-2 of the first adhesive member 1310A in the horizontal direction may be uniform or fixed. For example, the horizontal direction may be perpendicular to the optical axis.
[0586] Additionally, the second portion 1032-2 of the first adhesive member 1310A can connect the second surface 1007B of the inner surface 1007 of the retainer 1600A and the second region 1056b of the outer surface of the filter 1610 to each other, and can attach or fix the second surface 1007B and the second region 1056b to each other.
[0587] For example, the distance between the first region 1056a of the filter 1610 and the first surface 1007A of the inner surface 1007 of the retainer 1600A can gradually increase along the direction from the upper surface 1051a to the lower surface 1051b of the retainer 1600A.
[0588] Additionally, for example, the distance between the second region 1056b of the filter 1610 and the second surface 1007B of the inner surface 1007 of the retainer 1600A may be uniform or fixed; however, this disclosure is not limited thereto.
[0589] In another embodiment, at least one protrusion (not shown) opposite to the outer surface of the filter 1610 may be formed on at least one of the first surface 1007A and the second surface 1007B of the retainer 1600A.
[0590] Figure 20 The descriptions of d1, d2, and h1 can be applied to, or can be modified to, as necessary. Figure 22 Examples of implementations.
[0591] The first surface 1007A of the inner surface 1007 of the retainer 1600A is an inclined surface. Since the distance between the first region 1056a of the filter 1610 and the first surface 1007A of the inner surface 1007 of the retainer 1600A gradually increases in the direction from the upper surface 1051a to the lower surface 1051b of the retainer 1600A, the bonding area between the first adhesive member 1310A and the inner surface 1007 of the retainer 1600A can be increased, thereby increasing or improving the adhesive force between the retainer 1600A and the filter 1610.
[0592] In this embodiment, the adhesive force between the filter 1610 and the retainer 1600A is increased, so that even if the retainer 1600A does not have a support portion that can support the filter 1610, the filter 1610 can be stably attached and fixed to the retainer 1600A by the first adhesive member 1310A.
[0593] Furthermore, the retainer 1600A does not have a support portion that overlaps with the filter 1610 along the optical axis. Therefore, in this embodiment, the height margin of the camera module along the optical axis can be increased, and the reduction in the distance between the image sensor and the lens module can be prevented, thereby increasing the freedom of lens selection and thus improving the reliability of AF drive.
[0594] According to another embodiment, the retainer may have... Figure 16b Implementation examples and Figure 22 The embodiments are combined with each other in a structure. That is, the inner surface of the retainer may include: a first surface adjacent to or adjacent to the upper surface of the retainer, a second surface adjacent to or adjacent to the lower surface of the retainer, and a third surface configured to connect the first surface and the second surface to each other. In this case, the first surface of the retainer may correspond to Figure 16b The first surface 1003A, and the description of the first surface 1003A can be applied or modified as necessary to the first surface of the retainer. Additionally, the first surface of the retainer can correspond to... Figure 22 The first surface 1007A, and the description of the first surface 1007A can be applied or modified as necessary to the first surface of the retainer. Additionally, the third surface of the retainer can be a surface perpendicular to the upper surface of the retainer.
[0595] The first adhesive member may be disposed on at least one of the first, second, and third surfaces of the retainer. Additionally, the first adhesive member may be disposed, connected, or attached between at least one of the first, second, and third surfaces of the retainer and the outer surface of the filter 1610.
[0596] Figure 23 This is a plan view of the retainer 1600B according to another embodiment. Figure 24 It is the retainer 1600B along Figure 23 A sectional view of the direction EF.
[0597] Reference Figure 23 and Figure 24 The retainer 1600B may have a support 1029 disposed on at least one corner or corner region of its inner surface 1004 (1004a to 1004d). In addition to the support 1029, Figure 16a and Figure 16bThe description of the retainer 1600 can be applied to, or can be applied to, retainer 1600B by making the necessary modifications.
[0598] The support portion 1029 can protrude from the second surface 1003B of the retainer 1600B in a horizontal direction or in a direction perpendicular to the optical axis.
[0599] For example, the retainer 1600B may be provided with a plurality of bosses 1002a to 1002d spaced apart from each other. Each of the plurality of bosses 1002a to 1002d may be provided on a corresponding corner of the inner surface of the retainer 1600B.
[0600] The support portion 1029 can overlap with the corner or corner area of the filter 1610 along the optical axis direction, and can support the corner or corner area of the filter 1610.
[0601] In another embodiment, the support portion 1029 may not be provided at the corner or corner area of the inner surface 1004 (1004a to 1004d) of the retainer 1600B, but may be provided on one side of the inner surface 1004 of the retainer 1600B.
[0602] The first thickness T1 of the support portion 1029 can be less than the second thickness T2 of the filter 1610.
[0603] For example, the first thickness T1 can be equal to or less than 1 / 2 of the second thickness T2.
[0604] For example, the ratio (T1:T2) of the first thickness T1 to the second thickness T2 can be from 1:2 to 1:50.
[0605] Alternatively, for example, the ratio of the first thickness T1 to the second thickness T2 (T1:T2) can be from 1:2 to 1:10. Alternatively, for example, the ratio of the first thickness T1 to the second thickness T2 (T1:T2) can be from 1:4 to 1:10.
[0606] Since the inner surface of the retainer 1600B includes first surfaces 1003A and 1003B, the adhesion between the filter 1610 and the retainer 1600B can be improved by the first adhesive member 1310, such as... Figure 16a and Figure 16b As described in the embodiments. Figure 23 and Figure 24 The support portion 1029 can work together with the first adhesive member 1310 to assist in supporting the filter 1610, thereby allowing the filter 1610 to be stably supported.
[0607] In addition, when the size of the filter 1610 is large, the flatness of the filter 1610 in the horizontal direction can be improved by the support portion 1029.
[0608] In addition, Figure 23 In one embodiment, when the first adhesive member 1310 is injected into the space between the filter 1610 and the retainer 1600B, the support can be used as a device configured to support the filter 1610 relative to the retainer 1600B without the need for a clamp.
[0609] Furthermore, since the support portion 1029 assists the first adhesive member 1310 in supporting the filter 1610, the thickness of the support portion 1029 can be less than the thickness of the filter 1610. As a result, the increased distance between the filter 1610 and the lens module 1400 can be improved, the thickness limitation of the filter 1610 can be improved, and the travel limitation of the lens moving device along the optical axis can be improved.
[0610] Figure 25 This is a split perspective view of the camera module 2200 according to an embodiment. Figure 26 yes Figure 25 A 3D diagram showing the connection of the camera module 2200. Figure 27 yes Figure 25 Separation stereoscopic view of the lens moving device 2100, Figure 28 It is camera module 2200 along Figure 26 A cross-sectional view along the AB direction. Figure 29 yes Figure 25 A stereoscopic view of the image sensor unit 2350. Figure 30 yes Figure 29 A three-dimensional view showing the separation of the foreign matter adsorption unit 2310, the filter 2610, and the retainer 2600. Figure 31 This is a 3D view of the retainer 2600. Figure 32 This is a perspective view showing the connection of the retainer 2600, the filter 2610, and the foreign matter adsorption unit 2310. Figure 33 This is a bottom perspective view of the retainer 2600 and the adhesive component 2612. Figure 34a yes Figure 29 Image sensor unit 2350 along Figure 26 A cross-sectional view of direction AB. Figure 34b yes Figure 34a A partial enlarged view of the sectional view, and Figure 35 Solders 2035A and 2035B are shown, which are configured to electrically connect circuit board 2190 to first lower elastic member 2160-1 and second lower elastic member 2160-2.
[0611] Reference Figures 25 to 35 The camera module 2200 may include a lens module 2400, a lens moving device 2100, and an image sensor unit 2350.
[0612] Here, the "camera module" can be referred to as an "imaging device" or "shooting device," and the holder 2600 can be referred to as a "sensor base." Additionally, the lens module 2400 can be referred to as a "lens unit" or "lens assembly." The lens module 2400 can be coupled to the lens moving device 2100 and can include at least one of a lens 2412 and a lens barrel 2414.
[0613] Additionally, the lens moving device 2100 may be referred to as a lens moving unit, a voice coil motor (VCM), an actuator, or a lens moving device. Furthermore, in the following description, the term "coil" may be referred to as a coil unit, and the term "elastic member" may be referred to as an elastic unit or a spring. Additionally, in the following description, the term "terminal" may sometimes be referred to as a solder pad, electrode, conductive layer, or adhesive portion.
[0614] The lens moving device 2100 can be connected to the lens module 2400, enabling the lens module 2400 to move along or parallel to the optical axis, and to perform an autofocus function. Here, the "autofocus function" can be a function that moves the lens along the optical axis based on the distance from the object to automatically focus on the object so as to obtain a clear image of the object on the image sensor.
[0615] The lens module 2400 can be mounted to the spool 2110 of the lens moving device 2100. The lens moving device 2100 can drive the lens module 2400 and can move the lens module 2400 along the optical axis.
[0616] Camera module 2200 can be either an autofocus (AF) camera module or an optical image stabilization (OIS) camera module. The AF camera module can be a camera module capable of performing autofocus, and the OIS camera module can be a camera module capable of performing both autofocus and optical image stabilization (OIS).
[0617] Figure 27 The lens moving device 2100 shown is an AF lens moving device; however, this disclosure is not limited thereto. In another embodiment, the lens moving device may be an OIS lens moving device. Here, the meanings of "AF" and "OIS" may be the same as those described in conjunction with the AF camera module and the OIS camera module.
[0618] replace Figure 27 The lens mobile device 2100, according to another embodiment, may include a camera module that includes reference to... Figures 1 to 11b The lens mobile device 100 is described.
[0619] The image sensor unit 2350 may include a filter 2610 and an image sensor 2810, and can convert an image that has passed through the lens module 2400 and is connected to the image sensor 2810 into an electrical signal.
[0620] Reference Figure 27 and Figure 28 The lens moving device 2100 may include: a housing 2140; a spool 2110 disposed in the housing 2140 and configured to allow the lens module 2400 to be mounted on the spool; a coil 2120 disposed on the spool 2110; a magnet 2130 disposed on the housing 2140 and opposite to the coil 2120; an upper elastic member 2150 connected to the upper part of the spool 2110 and the upper part of the housing 2140; a lower elastic member 2160 connected to the lower part of the spool 2110 and the lower part of the housing 2140; and a base 2210.
[0621] Additionally, the lens moving device 2100 may also include a cover member 2300 connected to the base 2210, the cover member being configured to define a space together with the base 2210 in which components of the lens moving device 2100 are received.
[0622] The coil 2120 can be disposed on the outer peripheral surface or outer surface of the wire shaft 2110. For example, a recess 2015 can be provided in the outer surface of the wire shaft 2110, and the coil 2120 is disposed or placed in the recess.
[0623] The coil 2120 may have a closed-loop shape or a loop shape. For example, the coil 2120 may be wound in a loop shape on the outer surface of the spool 2110; however, this disclosure is not limited thereto.
[0624] Coil 2120 may be connected to at least one of upper elastic member 2150 and lower elastic member 2160. A drive signal may be provided to coil 2120. The drive signal may be in the form of current or voltage, and may include at least one of DC signal and AC signal.
[0625] At least one of the upper elastic member 2150 and the lower elastic member 2160 may include two or more elastic members, and the coil 2120 may be electrically connected to at least one of the upper elastic member 2150 and the lower elastic member 2160.
[0626] For example, the lower elastic member 2160 may include two lower elastic members 2160-1 and 2160-2, such as a lower spring, and the coil 2120 may be connected to these two lower elastic members 2160-1 and 2160-2.
[0627] The upper elastic member 2150 may include: a first inner frame (or first interior) connected to the spool 2110; a first outer frame (or first exterior) connected to the housing 2140; and a first connecting portion configured to connect the first inner frame and the first outer frame to each other.
[0628] Additionally, each of the lower elastic members 2160-1 and 2160-2 may include: a second inner frame (or second interior) 2161 connected to the spool 2110; a second outer frame (or second exterior) 2162 connected to the housing 2140; and a second connecting portion 2163 configured to connect the second inner frame and the second outer frame to each other.
[0629] The two lower elastic members 2160-1 and 2160-2 can be electrically connected to the coil 2120. For example, one end of the coil 2120 can be connected to the second inner frame 2161 of the first lower elastic member 2160-1, and the other end of the coil 2120 can be connected to the second inner frame 2161 of the second lower elastic member 2160-2.
[0630] The first lower elastic member 2160-1 may include a first terminal 2164-1, and the second lower elastic member 2160-2 may include a second terminal 2164-2 (see...). Figure 35 Each of the first terminal 2164-1 and the second terminal 2164-2 can be electrically connected to the circuit board 2190 via solder. The drive signal for the coil 2120 can be input from the outside via the first terminal 2164-1 and the second terminal 2164-2.
[0631] The first terminal 2164-1 can be bent from the second outer frame 2162 of the first lower elastic member 2160-1 to the outer surface (or "first outer surface") of the base 2210.
[0632] The second terminal 2164-2 can be bent from the second outer frame 2162 of the second lower elastic member 2160-2 to the outer surface (or “first outer surface”) of the base 2210.
[0633] At least a portion of each of the first terminal 2164-1 and the second terminal 2164-2 may be disposed on the outer surface of the retainer 2600 and may be electrically connected to the circuit board 2190. The circuit board 2190 may provide a drive signal to the coil 2120 via the first terminal 2164-1 of the first lower elastic member 2160-1 and the second terminal 2164-2 of the second lower elastic member 2160-2.
[0634] Reference Figure 35For example, the first terminal 2164-1 may be disposed in the first recess 2022A of the base 2210 and the first recess portion 2024a of the retainer 2600, and the second terminal 2164-2 may be disposed in the second recess 2022B of the base 2210 and the second recess portion 2024b of the retainer 2600.
[0635] The first terminal 2164-1 can be electrically connected to the first pad (or first terminal) 2019A of the circuit board 2190 via the first solder 2035A, and the second terminal 2164-2 can be electrically connected to the second pad (or second terminal) 2019B of the circuit board 2190 via the second solder 2035B. The first pad 2019A and the second pad 2019B can be formed on the first board 2191.
[0636] The camera module 2200 may also include protective material 2025 configured to wrap around terminals 2164-1 and 2164-2 and solders 2035A and 2035B.
[0637] The protective material 2025 may include a first protective material 2025a and a second protective material 2025b.
[0638] The first protective material 2025a may be disposed in the first recess 2022A of the base 2210 and the first recess portion 2024a of the retainer 2600 to surround the first solder 2035A and the first terminal 2164-1.
[0639] The first protective material 2025a can protect the first solder 2035A and the first terminal 2164-1 from external impacts and can prevent the reliability of the conductive connection between the first solder 2035A and the first terminal 2164-1 from deterioration.
[0640] Additionally, a second protective material 2025b can be disposed in the second recess 2022B of the base 2210 and the second recess portion 2024b of the retainer 2600 to surround the second solder 2035B and the second terminal 2164-2. The second protective material 2025b can protect the second solder 2035B and the second terminal 2164-2 from external impacts and can prevent the reliability of the conductive connection between the second solder 2035B and the second terminal 2164-2 from deterioration.
[0641] The housing 2140 is disposed within the cover member 2300. The housing 2140 supports the magnet 2130. The housing 2140 may typically have a hollow column shape.
[0642] The housing 2140 may be provided with an opening (or a hollow portion) in which the spool 2110 is received, and the opening of the housing 2140 may be a through hole formed through the housing 2140 along the optical axis direction.
[0643] For example, a mounting portion 2141a may be provided on the side of the housing 2140, in which the magnet 2130 is mounted, disposed, or fixed. The mounting portion 2141a may be an opening or a through hole formed through the side of the housing 2140; however, this disclosure is not limited thereto. In another embodiment, the mounting portion may be a recess or a concave recess.
[0644] Additionally, a guide recess 2148 may be provided in the lower part of the outer surface of the corner portion of the housing 2140, and the boss 2216 of the base 210 may be inserted into the guide recess or the boss of the base may be fastened or connected to the guide recess.
[0645] Magnet 2130 can be disposed on the side of housing 2140 (i.e., the mounting portion 2141a). Magnet 2130 may include a plurality of magnets 2130-1 to 2130-4, and the magnet 2130 disposed on housing 2140 may correspond to coil 2120 in a direction perpendicular to optical axis OA, may be opposite to the coil, or may overlap with the coil.
[0646] Due to the interaction between the magnet 2130 and the coil 2120 which is provided with a driving signal, the spool 2110 and the lens module 2400 connected thereto can move along the optical axis, thereby controlling the displacement of the spool 2110 along the optical axis and thus enabling AF driving.
[0647] In addition, in order to perform AF feedback drive, the lens moving device 2100 of the camera module 2200 may also include a sensing magnet (not shown) disposed on the linear axis 2110 and an AF position sensor (e.g., Hall sensor) (not shown) disposed on the housing 2140 and / or base 2210, to correspond to, be opposite to or overlap with the sensing magnet.
[0648] Additionally, the lens moving device 2100 may also include an AF circuit board disposed on the housing 2140, the AF circuit board being configured to allow an AF position sensor to be mounted thereon. In this case, the circuit board can be electrically connected to the coil 2120 and the AF position sensor, and drive signals can be provided to each of the coil 2120 and the AF position sensor via the circuit board. For example, the circuit board may include terminals electrically connected to the coil 2120 and the AF position sensor.
[0649] When the AF position sensor is implemented by a Hall sensor only, an external drive signal can be provided to the circuit board, and the drive signal can be provided to the coil 2120 through the circuit board and two elastic members 2160-1 and 2160-2 connected to the circuit board.
[0650] When the AF position sensor is a driver IC that includes a Hall sensor, a drive signal is provided from the AF position sensor to the circuit board, and the drive signal can be provided to the coil 2120 through two elastic members 2160-1 and 2160-2 connected to the circuit board.
[0651] The AF position sensor can output an output signal based on the result of the sensing magnet sensing a magnetic field due to the movement of the spool 2110. The output of the AF position sensor can be transmitted to a circuit board, and can also be output to the outside through the circuit board.
[0652] In another embodiment, the AF position sensor may be mounted on a linear axis, and the sensing magnet may be mounted on a housing. Additionally, the lens moving device 2100 may also include a balancing magnet mounted on the linear axis 2110 and positioned on the opposite side of the sensing magnet.
[0653] According to another embodiment, the camera module may include a housing coupled to the lens module 2400, the housing being configured to fix the lens module 2400, rather than... Figure 25 The lens moving device 2100. The housing can be attached to or fixed to the upper surface of the retainer 2600. The housing attached or fixed to the retainer 2600 can remain stationary, and the position of the housing can be static when attached to the retainer 2600.
[0654] In addition to the AF lens moving device, the OIS lens moving device according to another embodiment may further include: an OIS coil configured to correspond to, be opposite to, or overlap with the magnet 2130 along the optical axis; a printed circuit board disposed on the base 2210; and a support member, one end of which is connected to the upper elastic member 2150 and the other end of which is conductively connected to the printed circuit board. Furthermore, the OIS lens moving device may also include an OIS position sensor conductively connected to the printed circuit board and disposed on the base 2210.
[0655] The cover member 2300 can be formed in the shape of a box, with its lower part open, and includes an upper plate 2301 and a side plate 2302 connected to the upper plate 2301. A housing 2140 can be disposed in the cover member 2300.
[0656] The lower end of the side plate 2302 of the cover member 2300 can be connected to the step 2211 of the base 2210 via an adhesive member or a sealing member. The cover member 2300 may have an opening, hole or hollow portion 2303 in its upper plate 2301, through which the lens module 2400 connected to the spool 2110 is exposed to external light.
[0657] The base 2210 can be disposed below the housing 2140. The base 2210 can be disposed below the lower elastic member 2160.
[0658] The base 2210 can be connected to the housing 2140 and can define a receiving space together with the cover member 2300, the receiving space being configured to receive the spool 2110 and the housing 2140. The base 2210 may be provided with openings corresponding to the openings of the spool 2110 and / or the openings of the housing 2140, and may be configured to have a shape consistent with or corresponding to the shape of the cover member 2300, such as a quadrilateral shape.
[0659] A boss 2216 protruding toward the housing 2140 may be formed on the upper surface of the base 2210. The base 2210 may be provided with bosses 2216 that protrude upwards at a predetermined height from its four corners or corner portions. Here, the bosses 2216 of the base 2210 may be referred to as "support portions".
[0660] The boss 2216 of the base 2210 can be inserted, fastened or attached to the guide recess 2148 of the housing 2140 by means of an adhesive component (such as epoxy resin or silicone resin).
[0661] The image sensor unit 2350 may include: a holder 2600; a filter 2610 disposed on the holder 2600; a foreign matter adsorption part 2310 disposed on the filter 2610; and an image sensor 2810.
[0662] The image sensor unit 2350 may also include a circuit board 2190 electrically connected to the lens moving device 2100.
[0663] Additionally, the image sensor unit 2350 may include an adhesive member 2612 disposed between the lens moving device 2100 and the holder 2600, the adhesive member being configured to connect or attach the lens moving device 2100 (e.g., base 2210) and the holder 2600 to each other.
[0664] Additionally, the image sensor unit 2350 may include an adhesive member 2611 disposed between the filter 2610 and the retainer 2600, the adhesive member being configured to connect or attach the filter 2610 and the retainer 2600 to each other.
[0665] Additionally, the image sensor unit 2350 may include circuit elements (or electronic components) 2095 disposed on or mounted on the circuit board 2190.
[0666] Reference Figure 25 , Figure 27 and Figures 29 to 32 The retainer 2600 can be disposed below the base 2210 of the lens moving device 2100 and can be disposed on the circuit board 2190.
[0667] For example, the retainer 2600 can be located below the lens module 2400.
[0668] For example, the retainer 2600 can be disposed on the circuit board 2190 and can receive the filter 2610.
[0669] The retainer 2600 can support the lens moving device 2100 located above it.
[0670] The lower surface of the base 2210 of the lens moving device 2100 may be opposite to the upper surface 2051a of the holder 2500. For example, the lower surface of the base 2210 of the lens moving device 2100 may be supported by the upper surface 2051a of the holder 2500.
[0671] The retainer 2600 may include an opening 2501 or a hollow portion corresponding to the image sensor 2810. The opening 2501 of the retainer 2600 may be formed through the retainer 2600 along the optical axis and may be referred to as a "hole" or "through hole".
[0672] For example, an opening 2501 may be formed through the center of the retainer 2600 and may be configured to correspond to or be opposite to the image sensor 2810 (e.g., the effective area of the image sensor 2810).
[0673] The retainer 2600 may include a mounting portion 2500 recessed from the upper surface 2051a.
[0674] The mounting section 2500 may include a bottom surface 2011 and an inner surface 2012.
[0675] At least a portion of the inner surface 2012 of the mounting section 2500 may be opposite to the side surface of the filter 2610.
[0676] The inner surface 2012 of the mounting portion 2500 may include: a first inner surface 2012A; a second inner surface 2012B opposite to the first inner surface 2012A; and a third inner surface 2012C and a fourth inner surface 2012D located between the first inner surface 2012A and the second inner surface 2012B in a manner opposite to each other.
[0677] The retainer 2600 may include a foreign matter collection portion 2506 recessed from the upper surface 2051a. The foreign matter collection portion 2506 may be concave.
[0678] The foreign object collection unit 2506 may be configured adjacent to the placement unit 2500; however, this disclosure is not limited thereto. The foreign object collection unit 2506 can collect introduced foreign objects from the lens moving device 2100. The foreign object collection unit 2506 may also be referred to as a dust collector.
[0679] For example, the foreign object collection section 2506 may include: a first foreign object collection section 2006A, formed as a first inner surface 2012A adjacent to the placement section 2500; a second foreign object collection section 2006B, formed as a second inner surface 2012B adjacent to the placement section 2500; a third foreign object collection section 2006C, formed as a third inner surface 2012C adjacent to the placement section 2500; and a fourth foreign object collection section 2006D, formed as a fourth inner surface 2012D adjacent to the placement section 2500.
[0680] Additionally, the retainer 2600 may include a recess 2508 provided in the corner region of the inner surface 2012 of the placement portion 2500.
[0681] The recess 2508 may be recessed along a direction from the center of the opening 2501 of the mounting portion 2500 to the corner region of the inner surface 2012 of the mounting portion 2500. The recess 2508 may prevent the adhesive member 2611 (such as UV epoxy resin, configured to attach the filter 2610 to the mounting portion 2500) from overflowing from the mounting portion 2500.
[0682] For example, the recess 2508 may include a plurality of (e.g., four) recesses 2005A to 2005D formed in a plurality of (e.g., four) corner regions of the placement portion 2500; however, this disclosure is not limited thereto. In another embodiment, the recess may be formed on at least one of the plurality of corners of the placement portion 2500.
[0683] The opening 2501 of the retainer 2600 can be formed in the bottom surface 2011 of the mounting portion 2500.
[0684] The retainer 2600 may have at least one recessed portion 2024a and 2024b recessed from its outer surface 2052. Here, the recessed portions 2024a and 2024b may be referred to as "recessed portions" or "recesses".
[0685] For example, the retainer 2600 may include four outer surfaces and may include a first recessed portion 2024a and a second recessed portion 2024b formed in any one of the outer surfaces in a spaced-apart manner.
[0686] The first recessed portion 2024a and the second recessed portion 2024b may correspond to or be opposite to the terminals 2164-1 of the first elastic member 2160-1 and the terminals 2164-2 of the second elastic member 2160 of the lower elastic member 2160.
[0687] Each of the first recess 2024a and the second recess 2024b may include an upper opening that opens to the upper surface 2051a of the retainer 2600 and a lower opening that opens to the lower surface 2051b of the retainer 2600.
[0688] The first recess 2024a and the second recess 2024b of the holder 2600 may correspond to or be opposite to the recesses 2022A and 2022B formed in the outer surface of the base 2210 of the lens moving device 2100.
[0689] The retainer 2600 may include a boss 2604 protruding from its lower surface 2051b.
[0690] For example, the lower surface 2051b of the retainer 2600 may be a surface located on the opposite side of the upper surface 2051a of the retainer 2600.
[0691] The boss 2604 of the retainer 2600 can be positioned to be connected to or adjacent to the edge of the lower surface 2051b of the retainer 2600, and can also be adjacent to the outer surface of the retainer 2600.
[0692] When viewed from below, the boss 2604 can be polygonal (e.g., quadrilateral).
[0693] An adhesive member configured to connect the retainer 2600 and the circuit board 2190 may be disposed between the lower surface 2051c of the boss 2604 of the retainer 2600 and the upper surface of the circuit board 1190. For example, the adhesive member may be a thermosetting adhesive member, such as a thermosetting epoxy resin.
[0694] A protrusion 2048 may be formed on the lower surface 2051c of the boss 2604 of the retainer 2600. This protrusion is configured to connect to a recess or hole 2093 formed in the circuit board 2190 (see [link]). Figure 29 ).
[0695] In another embodiment, instead of retainer 2600, adhesive member 2611, and filter 2610, reference 2610 can be applied. Figures 16a to 24 The described retainer 1600, 1600A or 1600B, adhesive member 1310 and filter 1610.
[0696] The filter 2610 can be installed in the mounting section 2500 of the retainer 2600.
[0697] For example, the filter 2610 may be disposed or mounted on the bottom surface 2011 of the mounting portion 2500. For example, the lower surface of the filter 2610 may be adjacent to or attached to the bottom surface 2011 of the mounting portion 2500.
[0698] For example, the adhesive member 2611 can be provided on the bottom surface 2011 of the mounting portion 2500, and the edge of the lower surface of the filter 2610 can be attached or fixed to the bottom surface 2011 of the mounting portion 2500 by the adhesive member 2611.
[0699] For example, the adhesive component 2611 may be an epoxy resin, a thermosetting adhesive (e.g., a thermosetting epoxy resin), or a UV-curing adhesive (e.g., a UV-curing epoxy resin).
[0700] In another embodiment, replacing Figure 29 and Figure 30 The retainer 2600 and adhesive member 2611 can be applied or modified as necessary, according to the reference. Figures 16a to 24 The described retainer 1600, 1600A or 1600B, adhesive member 1310 or 1310A, and filter 161.
[0701] The filter 2610 may have a plate shape, a flat quadrilateral shape, or a polyhedral shape (e.g., a hexahedral shape); however, this disclosure is not limited thereto.
[0702] When viewed from above, the shape of the mounting portion 2500 may be consistent with the shape of the filter 2610, or may have a shape suitable for receiving the filter 2610. For example, when viewed from above, the shape of the mounting portion 2500 may be polygonal (e.g., quadrilateral), circular, or elliptical; however, this disclosure is not limited thereto.
[0703] For example, the shape of the opening 2501 of the retainer 2600 may be consistent with the shape of the filter 2610 or the image sensor 2810; however, this disclosure is not limited thereto.
[0704] Light that has passed through lens module 2400 can be incident on image sensor 2810 via filter 2610.
[0705] Filter 2610 can be used to prevent specific frequency band components of light that have passed through lens module 2400 from incident on image sensor 2810. For example, filter 2610 can be an infrared cut-off filter; however, this disclosure is not limited thereto. In another embodiment, the filter can be an infrared pass-through filter. For example, filter 2610 can be arranged parallel to an xy plane perpendicular to the optical axis OA.
[0706] The adhesive member 2612 can connect or attach the base 2210 of the lens moving device 2100 to the retainer 2600. For example, the second adhesive member 2612 can be disposed between the lower surface of the base 2210 and the upper surface 2051a of the retainer 2600, and can attach the two to each other.
[0707] In addition to its adhesive function, the adhesive component 2612 can also be used to prevent foreign objects from entering the lens moving device 2100. For example, the adhesive component 2612 can be epoxy resin, thermosetting adhesive, or UV-curing adhesive.
[0708] For example, the adhesive member 2612 may be disposed on the upper surface of the retainer 2600 to have a circumferential annular shape surrounding the opening 2501 of the retainer 2600; however, this disclosure is not limited thereto.
[0709] The retainer 2600 can be disposed on the circuit board 2190 and can support the lens moving device 2100. For example, the lower surface of the base 2210 of the lens moving device 2100 and the upper surface of the retainer 2600 can be opposite each other along the optical axis, and the two can be attached to each other by the adhesive member 2612.
[0710] Circuit board 2190 can be a printed circuit board (PCB).
[0711] The circuit board 2190 may be disposed below the retainer 2600 and may include: a first board 2191; a second board 2192; a third board 2193, configured to connect the first board 2191 and the second board 2192 to each other; and a connector 2194 connected to the third board 2193.
[0712] The retainer 2600 can be attached or fixed to the upper surface of the circuit board 2190 by an adhesive component (not shown), such as epoxy resin, thermosetting adhesive, or UV-curing adhesive. In this case, the adhesive component can be disposed between the lower surface of the retainer 2600 and the upper surface of the circuit board 2190.
[0713] The image sensor 2810 and circuit element 2095 can be set or mounted on the circuit board 2190.
[0714] For example, circuit element 2095 may be disposed on or mounted to the first board 2191. In addition, circuit board 2190 may include at least one terminal disposed on or formed on the first board 2191.
[0715] For example, the number of terminals of the circuit board 2190 can be multiple, and the multiple terminals of the circuit board 2190 can be electrically connected to the image sensor 2810 and the circuit element 2095.
[0716] Sensor base 2600, image sensor 2810, and circuit element 2095 may be disposed on first board 2191. For example, each of first board 2191 and second board 2192 may be a rigid printed circuit board, and third board 2193 may be a flexible printed circuit board configured to electrically connect first board 2191 and second board 2192 to each other; however, this disclosure is not limited thereto. In another embodiment, at least one of the first to third boards may be a rigid printed circuit board or a flexible printed circuit board. In another embodiment, the first to third boards may be integrated into a single board.
[0717] Image sensor 2810 can be mounted on circuit board 2190 and can be electrically connected to circuit board 2190. In this case, image sensor 2810 may include an effective area (or effective image area or imaging area) 2811 (see...). Figure 34b The light that has passed through the filter 2610 is incident on the effective area, thereby forming an image included in the light.
[0718] The image sensor 2810 can convert light illuminating the effective area into an electrical signal and can output the converted electrical signal.
[0719] The optical axis of the image sensor 2810 and the optical axis of the lens module 2400 can be aligned with each other.
[0720] For example, the effective areas 2811 of the filter 2610 and the image sensor 2810 can be spaced apart from each other and opposite each other along the optical axis (OA).
[0721] Circuit element 2095 may be electrically connected to first board 2191 and may include a controller configured to control image sensor 2810 and lens moving device 2100. For example, circuit element 2095 may include at least one of a capacitor, memory, controller, sensor (e.g., motion sensor), and integrated circuit (IC).
[0722] Circuit board 2190 can be electrically connected to lens moving device 2100.
[0723] For example, circuit board 2190 may be electrically connected to the first elastic member 2160-1 and the second elastic member 2160-2 of lens moving device 2100. For example, circuit board 2190 may include terminals 2019A and 2019B, which are electrically connected to the first elastic member 2160-1 and the second elastic member 2160-2 of lens moving device 2100 via solder 2035A and 2035B.
[0724] Alternatively, in another embodiment, circuit board 2190 may be electrically connected to the circuit board of the lens moving device.
[0725] For example, a drive signal can be provided to the coil 2120 of the lens moving device 2100 via circuit board 2190. Alternatively, in another embodiment, the drive signal can be provided to the AF position sensor (or OIS position sensor) via circuit board 2190. Additionally, the output of the AF position sensor (and / or OIS position sensor) can be transmitted to circuit board 2190.
[0726] Connector 2194 can be electrically connected to circuit board 2190 (e.g., second board 2192) and can be provided with a port for conductive connection to an external device.
[0727] although Figure 25 Not shown, but another embodiment may include a reinforcing member disposed below the circuit board 2190 and attached to the lower surface of the circuit board 2190 and the lower surface of the image sensor. Here, the reinforcing member (which is a plate member with a predetermined thickness and rigidity) can hermetically seal the through-holes of the circuit board 2190, stably support the circuit board and the image sensor, and suppress damage to the circuit board due to external impacts or contact. In addition, the reinforcing member can improve the heat dissipation effect of dissipating the generated heat from the image sensor to the outside.
[0728] For example, the reinforcing member may be made of a metallic material (such as SUS or aluminum) exhibiting high thermal conductivity; however, this disclosure is not limited thereto. In another embodiment, the reinforcing member may be made of glass epoxy, plastic, or synthetic resin.
[0729] In embodiments with reinforcing members, circuit board 2190 may include openings or through holes, image sensors may be disposed in the openings or through holes of the circuit board, and image sensors may be disposed on the upper surface of the reinforcing members.
[0730] Additionally, the reinforcing member can be electrically connected to the grounding terminal of the circuit board 2190, thereby enabling the reinforcing member to function as a ground and be configured to protect the camera module from electrostatic discharge (ESD).
[0731] The foreign matter adsorption unit 2310 can be disposed on or connected to the upper surface of the filter 2610. Here, the upper surface of the filter 2610 can be the surface opposite to the lens module 2400 along the optical axis. The foreign matter adsorption unit 2310 can be referred to as an "adsorption unit", "foreign matter adhesion unit", or dust collector.
[0732] The foreign object adsorption part 2310 may have an opening, such as a through hole, at a position corresponding to the image sensor 2810.
[0733] The foreign matter adsorption part 2310 may be provided in the edge region of the upper surface 2062 of the filter 2610. For example, the foreign matter adsorption part 2310 may be attached to or connected to the edge region of the upper surface 2062 of the filter 2610.
[0734] For example, when viewed along the optical axis, the filter 2610 can be formed into a polygonal shape, such as a quadrilateral shape.
[0735] For example, the foreign matter adsorption section 2310 may have a polygonal shape, such as a quadrilateral shape. The foreign matter adsorption section 2310 may have a closed-loop or ring shape; however, this disclosure is not limited thereto. For example, the foreign matter adsorption section 2310 may have a closed-loop shape with an opening formed in a polygonal shape (e.g., a quadrilateral shape); however, this disclosure is not limited thereto.
[0736] The foreign matter adsorption section 2310 can be formed symmetrically with respect to the filter 2610 along each side of the upper surface of the filter 2610. For example, the foreign matter adsorption section 2310 can be formed symmetrically with respect to the filter 2610 from left to right or from top to bottom.
[0737] For example, the foreign matter adsorption section 2310 may be formed to have a fixed width on each side of the upper surface of the filter 2610; however, this disclosure is not limited thereto.
[0738] exist Figure 34a and Figure 34b In this embodiment, the foreign matter adsorption part 2310 may be disposed on the upper surface of the filter 2610; however, this disclosure is not limited thereto. In another embodiment, the foreign matter adsorption part may also be disposed on the upper surface and the side surface of the filter 2610. For example, in another embodiment, the foreign matter adsorption part may be disposed between the side surface of the filter 2610 and the inner surface 2012 of the placement portion 2500 of the holder 2600, thereby improving the foreign matter adsorption effect and the light blocking effect.
[0739] Reference Figure 34a and Figure 34b For example, the side surface 2061 of the filter 2610 may be spaced apart from the inner surface 2012 of the mounting portion 2500 of the retainer 2600.
[0740] For example, the upper surface 2062 of the filter 2610 can be positioned below the upper surface 2051a of the holder 2600 along the optical axis. Alternatively, the upper surface 2062 of the filter 2610 can be positioned below the bottom surface of the foreign matter collection section 2506. This is because spatial interference between the lens module 2400 and the filter 2610 must be avoided.
[0741] For example, based on the bottom surface 2011 of the placement part 2500, the upper surface of the foreign matter adsorption part 2310 can be positioned lower than the upper surface 2051a of the retainer 2600 and / or the bottom surface of the foreign matter collection part 2506; however, this disclosure is not limited thereto. In another embodiment, the former can be positioned higher than the latter or at the same height as the latter.
[0742] The retainer 2600 may include a first inclined surface 2607 and a second inclined surface 2609 located between the lower surface 2051b and the bottom surface 2011 of the mounting portion 2500.
[0743] The first inclined surface 2607 may be adjacent to the bottom surface 2011 of the mounting portion 2500, and may be an inclined surface that slopes downward from the bottom surface 2011. For example, the interior angle between the first inclined surface 2607 of the retainer 2600 and the bottom surface 2011 may be an obtuse angle. For example, the first inclined surface 2607 may be a conical surface. The occurrence of cracks due to collisions between the lower surface of the filter 2610 and the mounting portion 2500 of the retainer 2600 can be suppressed by the first inclined surface 2607.
[0744] The second inclined surface 2609 may be adjacent to the lower surface 2051b of the retainer 2600, and may be an inclined surface that slopes upward from the lower surface 2051b of the retainer 2600. For example, the interior angle between the second inclined surface 2609 of the retainer 2600 and the lower surface 2051b of the retainer 2600 may be an obtuse angle.
[0745] Additionally, the retainer 2600 may also include a third inclined surface 2608 configured to connect the first inclined surface 2607 and the second inclined surface 2609 to each other. For example, the third inclined surface 2608 may be perpendicular to the bottom surface 2011; however, this disclosure is not limited thereto. In another embodiment, the inclination angle of the third inclined surface 2608 relative to the bottom surface 2011 may be an obtuse angle or an acute angle.
[0746] The side surface or outer surface of the foreign matter adsorption portion 2310 and the side surface 2061 of the filter 2610 may be on the same plane. For example, the side surface or outer surface of the foreign matter adsorption portion 2310 may be adjacent to the side surface of the filter 2610; however, this disclosure is not limited thereto. In another embodiment, the side surface of the foreign matter adsorption portion 2310 and the side surface 2061 of the filter 2610 may not be on the same plane, and the side surface of the foreign matter adsorption portion 2310 may be spaced apart from the side surface 2061 of the filter 2610, or spaced apart from the corners where the side surface and the top surface of the filter 2610 are adjacent to each other.
[0747] For example, the foreign matter adsorption section 2310 may be spaced apart from the inner surface 2012 of the placement section 2500 of the retainer 2600.
[0748] When viewed from above or along the optical axis, at least a portion of the foreign matter adsorption section 2310 may overlap with the bottom surface 2011 of the placement section 2500.
[0749] In addition, when viewed from above or along the optical axis, the foreign matter adsorption part 2310 can overlap with the adhesive member 2612.
[0750] For example, the width of the foreign matter adsorption portion 2310 may be greater than the width of the bottom surface 2011 of the placement portion 2500. Alternatively, in another embodiment, for example, the width of the foreign matter adsorption portion 2310 may be equal to or less than the width of the bottom surface 2011 of the placement portion 2500.
[0751] Furthermore, for example, the width of the foreign matter adsorption portion 2310 may be greater than the width of the adhesive member 2612. Alternatively, in another embodiment, for example, the width of the foreign matter adsorption portion 2310 may be equal to or less than the width of the adhesive member 2612.
[0752] In addition, when viewed from above or along the optical axis, the foreign object adsorption section 2310 may overlap with at least a portion of the image sensor 2810.
[0753] Furthermore, when viewed from above or along the optical axis, the foreign object adsorption portion 2310 may not overlap with the effective area 2811 of the image sensor 2810; however, this disclosure is not limited thereto. In another embodiment, when viewed from above or along the optical axis, the foreign object adsorption portion 2310 may overlap with the effective area 2811 of the image sensor 2810.
[0754] The foreign matter adsorption section 2310 can be made of an adhesive or bonding material. For example, the adhesive material that adheres to the foreign matter can be coated or attached to a region of the upper surface 2062 of the filter 2610, thereby forming the foreign matter adsorption section 2310.
[0755] For example, the adhesive material may be a dust collector, an adhesive silicone, or an adhesive resin; however, this disclosure is not limited thereto.
[0756] For example, the foreign matter adsorption part 2310 can be attached or fixed to the filter in the form of a membrane or double-sided tape.
[0757] For example, the adhesive material used to form the foreign matter adsorption section 2310 can be a material whose adhesiveness does not decrease significantly over time.
[0758] During the assembly of the camera module, a large number of foreign objects generated in the lens moving device or introduced from the outside can naturally adhere to the image sensor. If such foreign objects (such as dust) spread to the pixels of the effective area of the image sensor, imperfections (such as stains) may appear on the final screen of the device including the camera module.
[0759] The foreign matter collection section of the retainer 2600 can remove such foreign matter, but the size of the retainer may need to be increased to ensure the area required to form the foreign matter collection section. On the other hand, if the size of the foreign matter collection section is increased, the area of the upper surface of the retainer excluding the foreign matter collection section may be relatively reduced. The reduction in the area of the upper surface of the retainer may lead to a reduction in the coating area of the adhesive member, thereby potentially reducing the adhesive force between the retainer and the base of the lens moving device.
[0760] In addition, since the foreign object collection unit is located at the holder, it may be difficult for the foreign object collection unit to collect foreign objects introduced into the filter or image sensor from above the filter.
[0761] Since the foreign matter adsorption part 2310 is separately provided on the upper surface of the filter 2610, the embodiment can have the following effects.
[0762] First, the foreign matter adsorption unit can be adjacent to the effective area 2811 of the image sensor 2810 to collect foreign matter, thereby reducing the defect rate of the image sensor 2810 caused by stains due to foreign matter.
[0763] Next, depending on the needs, the area of the foreign matter collection section formed at the retainer 2600 can be reduced, or the foreign matter collection section can be omitted from the retainer 2600. Therefore, the design freedom of the retainer 2600 can be increased.
[0764] In addition, the area of the upper surface of the retainer 2600 on which the adhesive component is coated can be sufficiently ensured, thereby preventing a reduction in the connection force between the retainer and the base.
[0765] The foreign object adsorption section 2310 may be made of a light-transmitting material; however, this disclosure is not limited thereto. In another embodiment, the foreign object adsorption section may be made of an opaque material.
[0766] For example, the foreign object adsorption part 2310 may be provided in the edge region of the upper surface of the filter 2610, and may be a light blocking member configured to block at least a portion of the light that has passed through the lens module 2400 from passing through the edge region of the filter 2610.
[0767] For example, the foreign matter adsorption section 2310 may be made of an opaque material; however, this disclosure is not limited thereto. In another embodiment, the foreign matter adsorption section 2310 may be made of an opaque adhesive material coated on the filter 2610.
[0768] For example, the foreign matter adsorption section 2310 may be made of a mixture of black ink for light blocking and adhesive material, and may be referred to in its terminology as a "light blocking adsorption section", "adsorption mask" or "adsorption black mask".
[0769] The circuit board 2190 may be provided with a terminal 2814, which is electrically connected to the terminal 2813 of the image sensor 2810 via a wire 2815.
[0770] Terminals 2814 of circuit board 2190 may be disposed in a region of circuit board 2190 adjacent to image sensor 1810. For example, terminals 2814 of circuit board 2190 may include multiple terminals disposed in a region of circuit board 2190 located around image sensor 2810.
[0771] The filter 2610 and the image sensor 2810 can be arranged opposite to each other along the optical axis, and the foreign matter adsorption part 2310 can overlap with at least one of the terminals 2813 of the image sensor 2810, the terminals 2814 of the circuit board 2190, and / or the wires 2814 along the optical axis.
[0772] The foreign object adsorption part 2310 provided in the edge region of the upper surface 2062 of the filter 2610 can be used to block unwanted parts (e.g., reflected light) of the light that has passed through the lens module 2400 and is incident on the image sensor 2810.
[0773] Each of the wire 2815 and terminals 2813 and 2814 can be made of a conductive material (such as gold, silver, copper or copper alloy), and such conductive material can have light-reflective properties.
[0774] That is, light that has passed through the filter 2610 can be reflected by the image sensor 2810, the terminal 2814 of the circuit board 2190 and / or the wire 2815. This reflected light may cause a momentary flash (i.e., a flash phenomenon), and the flash phenomenon may distort the image formed on the image sensor 2810 or may degrade the image quality.
[0775] Since at least a portion of the foreign object adsorption section 2310 overlaps with terminals 2813 and 2814 and / or wire 2815 along the optical axis, it can block light that has passed through the lens module 2400 from being guided to terminals 2813 of the image sensor 2810, terminals 2814 of the circuit board 2190, and / or wire 2815. As a result, flash phenomena can be prevented, and distortion or degradation of the image formed on the image sensor 2810 can be prevented.
[0776] The recess 2021A or recess can be provided in the inner corner of the foreign matter adsorption part 2310 corresponding to the corner of the filter 2610.
[0777] The recess 2021A may be formed in the corner of the inner peripheral surface of the inner end of the foreign matter adsorption part 2310. The recess 2021A may be formed in at least two of the four inner corners of the foreign matter adsorption part 2310.
[0778] When viewed along the optical axis or from above, the recess 2021A can be formed as a corner that avoids the effective area of the image sensor 2810. For example, when viewed along the first direction or from above, the recess 2021A can have an arc-shaped, curved, or polygonal shape.
[0779] To align the effective areas of the lens module 2400 and the image sensor 2810 with each other, the automatic effective alignment device must detect the position (or coordinates) of the effective area 2811 of the image sensor 2810 in the xy plane. For example, the automatic effective alignment device can identify the four corners of the effective area 2811 of the image sensor 2810, thereby checking the position (or coordinates) of the effective area 2811 of the image sensor 2810 in the xy plane.
[0780] When the foreign object adsorption unit 2310 has a light blocking function, a recessed part 2021A can be provided in the foreign object adsorption unit 2310 so that the automatic effective alignment device can accurately, easily and smoothly detect the four corners of the effective area 2811 of the image sensor 2810.
[0781] When the foreign object adsorption part 2310 does not have a light blocking function, the foreign object adsorption part 2310 may not have a recessed part 2021A.
[0782] Figure 36 This is a split stereo view of the image sensor unit 2350-1 according to another embodiment, and Figure 37 yes Figure 36 A partially magnified view of the cross-sectional view of the image sensor unit 2350-1.
[0783] Reference Figure 36 and Figure 37The image sensor unit 2350-1 may also include a light blocking member 2320 disposed between the foreign matter adsorption part 2310-1 and the filter 2610.
[0784] exist Figure 29 In the process, the foreign matter adsorption part 2310 is disposed on or attached to the upper surface of the filter, while... Figure 36 In this process, the light-blocking member 2320 can be disposed on the upper surface of the filter 2610 or attached to the upper surface of the filter.
[0785] The light-blocking component 2320 may have the same characteristics as the reference. Figure 29 The foreign object adsorption part 2310 has the same shape as described, and the description of the arrangement and shape of the foreign object adsorption part 2310 can also be applied to the light blocking member 2320.
[0786] For example, the light-blocking member 2320 may have an opening (e.g., a through hole) in the position corresponding to the image sensor.
[0787] The light-blocking member 2320 may be disposed in the edge region of the upper surface 2062 of the filter 2610. For example, the light-blocking member 2320 may be coupled to or attached to the edge region of the upper surface 2062 of the filter 2610.
[0788] For example, the light-blocking member 2320 may be formed in a polygonal shape, such as a quadrilateral shape. For example, the light-blocking member 2320 may have a closed loop or ring shape; however, this disclosure is not limited thereto. For example, the light-blocking member 2320 may have a closed loop shape with an opening formed in a polygonal shape (e.g., a quadrilateral shape); however, this disclosure is not limited thereto.
[0789] The light-blocking member 2320 may be formed symmetrically with respect to the filter 2610 along each side of the upper surface 2062 of the filter 2610. For example, the light-blocking member 2320 may be formed symmetrically with respect to the filter 2610 from left to right or from top to bottom.
[0790] For example, the light-blocking member 2320 may be formed to have a fixed width on each side of the upper surface of the filter 2610; however, this disclosure is not limited thereto.
[0791] The side surface or outer surface of the light-blocking member 2320 may be coplanar with the side surface 2061 of the filter 2610 and / or the side surface of the foreign matter adsorption part 2310-1. For example, the side surface or outer surface of the light-blocking member 2320 may be adjacent to the side surface of the filter 2610 and / or the side surface of the foreign matter adsorption part 2310-1; however, this disclosure is not limited thereto. In another embodiment, the side surface of the light-blocking member 2320 may not be coplanar with the side surface 2061 of the filter 2610 and / or the side surface of the foreign matter adsorption part 2310-1, and the side surface of the light-blocking member 2320 may be spaced apart from the side surface 2061 of the filter 2610 (or the side surface of the foreign matter adsorption part 2310-1) or spaced apart from the corners where the side surface and the upper surface of the filter 2610 are adjacent to each other.
[0792] For example, the light blocking member 2320 may be spaced apart from the inner surface 2012 of the mounting portion 2500 of the retainer 2600.
[0793] At least a portion of the light-blocking member 2320 may overlap with the bottom surface 2011 of the mounting portion 2500 along the optical axis direction.
[0794] Additionally, the light-blocking member 2320 may overlap with at least a portion of the image sensor 2810 along the optical axis. Alternatively, the light-blocking member 2320 may not overlap with the effective area 2811 of the image sensor 2810 along the optical axis. For example, the light-blocking member 2320 may be attached or fixed to the filter in the form of a film or double-sided tape.
[0795] The light-blocking member 2320 can be used to block light. The light-blocking member 2320 can be used to block unwanted portions (e.g., reflected light) of the light that have passed through the lens module 2400 and are incident on the image sensor 2810. Therefore, flare can be prevented, and distortion or degradation of the image formed on the image sensor 2810 can be prevented. Reflected light can be combined with... Figure 34b The same as that described in the foreign matter adsorption section 2310.
[0796] The light-blocking component 2320 may be made of a light-blocking material. For example, the light-blocking component may include black ink.
[0797] The light-blocking member 2320 may be provided with a recess 2031. The description of the recess 2031A of the foreign matter adsorption part 2310 can be applied to, or can be applied to, the recess 2031A of the light-blocking member 2320 by making necessary modifications.
[0798] The foreign object adsorption part 2310-1 can be provided on the light blocking member 2320.
[0799] According to Figures 25 to 34b The description of the foreign matter adsorption unit 2310 in the embodiment can be applied to, or can be adapted to, by making necessary modifications. Figure 36 and Figure 37 Foreign matter adsorption section 2310-1.
[0800] For example, Figure 36 and Figure 37 The foreign matter adsorption section 2310 may only have an adsorption function and no light-blocking function; however, this disclosure is not limited thereto. In another embodiment, the foreign matter adsorption section may have a light-blocking function.
[0801] The light blocking component 2320 can overlap with the foreign matter adsorption part 2310-1 along the optical axis.
[0802] The width W1 of the light blocking member 2320 can be equal to the width of the foreign matter adsorption part 2310-1.
[0803] At this time, the width W1 of the light-blocking member 2320 can be the length of the light-blocking member 2320 from its inner peripheral surface (or inner surface) to its outer peripheral surface (or outer surface). In addition, the width of the foreign matter adsorption part 2310-1 can be the length of the light-blocking member 2320 from its inner peripheral surface (or inner surface) to its outer peripheral surface (or outer surface).
[0804] Figure 38 It shows Figure 37 Another embodiment 310-2 of the foreign matter adsorption section 2310-1.
[0805] Reference Figure 38 At least a portion of the foreign matter adsorption part 2310-2 may be disposed on the upper surface of the filter 2610 adjacent to the inner peripheral surface (or inner surface) of the light blocking member 2320.
[0806] The width W1 of the foreign matter adsorption section 2310-2 can be greater than the width W1 of the light blocking member 2320. Since W2>W1, this embodiment can improve the foreign matter adsorption performance.
[0807] For example, the foreign matter adsorption part 2310-2 may include a first part that overlaps with the light blocking member 2320 along the optical axis and a second part that does not overlap with the light blocking member 2320 along the optical axis.
[0808] Figure 39 It shows Figure 37 Another embodiment 2310-3 of the foreign matter adsorption section 2310-1.
[0809] Reference Figure 39The foreign object adsorption part 2310-3 can expose a portion of the upper surface of the light blocking member 2320. For example, a portion of the upper surface of the light blocking member 2320 adjacent to the inner peripheral surface (or inner surface) of the light blocking member 2320 can be exposed from the foreign object adsorption part 2310-3.
[0810] The width W3 of the foreign object adsorption part 2310-2 can be smaller than the width W1 (W3) of the light blocking member 2320. <W1)。
[0811] Figure 40 It shows Figure 8 Another embodiment 2310A of the foreign matter adsorption section 2310.
[0812] Reference Figure 40 The foreign matter adsorption section 2310A may include a plurality of adsorption sections P1 to P4 disposed on the upper surface of the filter 2610 in a spaced-apart manner.
[0813] Each of the multiple adsorption units P1 to P4 can be disposed at a corresponding corner of the multiple corners on the upper surface of the filter 2610.
[0814] For example, each of the adsorption sections P1 to P4 may include a first portion 2085A disposed at a corner on the upper surface of the filter 2610.
[0815] Additionally, each of the adsorption portions P1 to P4 may include a second portion 2085B1 that extends to one of two different corners of the upper surface of the filter 2610 adjacent to that corner of the upper surface of the filter 2610.
[0816] Additionally, each of the adsorption portions P1 to P4 may include a third portion 2085B2 that extends to the other of the two different corners of the upper surface of the filter 2610 adjacent to the corner of the upper surface of the filter 2610.
[0817] For example, each of the adsorption portions P1 to P4 may include at least one curved portion. For example, each of the adsorption portions P1 to P4 may be “┓” shaped; however, this disclosure is not limited thereto.
[0818] Each of the adsorption portions P1 to P4 may be provided with a recess 21A1. The recess 21A1 may be formed in the inner corner of each of the adsorption portions P1 to P4. The function of the recess 21A1 can be applied to, or can be modified to, as necessary. Figure 40 The recessed portion 2021A.
[0819] Figure 41 It shows Figure 8Another embodiment 2310B of the foreign matter adsorption section 2310.
[0820] Reference Figure 41 The foreign matter adsorption section 2310B may include a plurality of adsorption sections Q1 to Qn (n is a natural number greater than 1) disposed at intervals from each other in the edge region of the upper surface of the filter 2610. In this case, the edge region of the upper surface of the filter 2610 may be a region within a predetermined range from each side of the upper surface of the filter 2610.
[0821] When viewed from above, each of the multiple adsorption parts Q1 to Qn can have a polygonal, circular, or elliptical dot shape.
[0822] For example, the foreign matter adsorption section 310b may include a first adsorption section Q1 disposed on the corner of the upper surface of the filter 2610 and a second adsorption section Qn disposed on the corner of the upper surface of the filter 2610.
[0823] For example, the area (or size) of each first adsorption portion Q1 can be smaller than the area (or size) of each second adsorption portion Qn. This is because the function of each recess 21A1 can be performed.
[0824] In another embodiment, the area (or size) of each first adsorption part may be equal to the area (or size) of each second adsorption part Qn.
[0825] Due to the improvement of the foreign matter adsorption unit 2310 Figure 40 and Figure 41 The foreign matter adsorption units 2310A and 2310B differ only in their shape; therefore, the description of the foreign matter adsorption unit 2310 (except for its shape) can be applied to, or modified as necessary, to, other parts of the foreign matter adsorption unit 2310. Figure 40 and Figure 41 Foreign matter adsorption units 2310A and 2310B.
[0826] Figure 42 It shows Figure 36 and Figure 37 Another embodiment 2310C of the foreign matter adsorption section 2310-1.
[0827] Reference Figure 42 The foreign matter adsorption part 2310C may include a plurality of adsorption parts R1 to R4 disposed on the upper surface of the light blocking member 2320 in a spaced-apart manner.
[0828] Each of the multiple adsorption parts R1 to R4 can be provided on a corresponding corner of the upper surface of the light blocking member 2320.
[0829] For example, each of the adsorption portions R1 to R4 may include a first portion 2086A disposed at a corner on the upper surface of the light blocking member 2320.
[0830] Additionally, each of the adsorption portions R1 to R4 may include a second portion 2086B1 that extends to one of two different corners adjacent to a corner of the upper surface of the light blocking member 2320.
[0831] Additionally, each of the adsorption portions R1 to R4 may include a third portion 2086B2 that extends to the other of the two different corners adjacent to the corner of the upper surface of the light blocking member 2320.
[0832] For example, each of the adsorption portions R1 to R4 may include at least one curved portion. For example, each of the adsorption portions R1 to R4 may be “┓” shaped; however, this disclosure is not limited thereto.
[0833] Each of the adsorption portions R1 to R4 may be provided with a recess 2031A1. The recess 2031A1 may be formed in the inner corner of each adsorption portion R1 to R4. The function of the recess 2031A1 can be applied to, or can be modified to, as necessary. Figure 42 The recessed portion 2031A1.
[0834] Figure 43 It shows Figure 36 and Figure 37 Another embodiment 2310D of the foreign matter adsorption section 2310-1.
[0835] Reference Figure 43 The foreign matter adsorption part 2310D may include a plurality of adsorption parts S1 to Sn (n is a natural number greater than 1) disposed on the light blocking member 2320 in a spaced-apart manner.
[0836] When viewed from above, each of the multiple adsorption parts S1 to Sn can have a polygonal, circular, or elliptical dot shape.
[0837] For example, the foreign matter adsorption part 2310D may include a first adsorption part S1 that is configured to correspond to the corner of the upper surface of the light blocking member 2320 and a second adsorption part Sn that is configured to correspond to the side of the upper surface of the light blocking member 2320.
[0838] For example, the area (or size) of each first adsorption portion S1 can be smaller than the area (or size) of each second adsorption portion Sn. This is because the function of each recessed portion 31A can be performed.
[0839] In another embodiment, the area (or size) of each first adsorption part S1 may be equal to the area (or size) of each second adsorption part Sn.
[0840] Due to the improvement of the foreign matter adsorption unit 2310-1 Figure 42 and Figure 43 The foreign matter adsorption units 2310C and 2310D differ only in their shape; therefore, the description of the foreign matter adsorption unit 2310-1 (except for its shape) can be applied or modified as necessary. Figure 42 and Figure 43 Foreign matter adsorption sections 2310C and 2310D.
[0841] Figure 44 This is a perspective view of the portable terminal 200A according to an embodiment, and Figure 45 It shows Figure 44 A view showing the construction of a portable terminal.
[0842] Reference Figure 44 and Figure 45 The portable terminal 200A (hereinafter referred to as the "terminal") may include a body 850, a wireless communication unit 710, an A / V input unit 720, a sensing unit 740, an input / output unit 750, a storage unit 760, an interface unit 770, a controller 780, and a power supply unit 790.
[0843] Figure 44 The body 850 shown has a bar shape; however, this disclosure is not limited thereto. The body can have any of a variety of structures, such as a sliding structure, a folding structure, a swinging structure, and a rotating structure, wherein two or more sub-bodies are connected in a manner that allows them to move relative to each other.
[0844] The main body 850 may include a shell (outer shell, housing, cover, etc.) defining its appearance. For example, the main body 850 may be divided into a front shell 851 and a rear shell 852. Various electronic components of the terminal may be installed in the space defined between the front shell 851 and the rear shell 852.
[0845] The wireless communication unit 710 may include one or more modules that enable wireless communication between the terminal 200A and the wireless communication system or between the terminal 200A and the network to which the terminal 200A resides. For example, the wireless communication unit 710 may include a broadcast receiving module 711, a mobile communication module 712, a wireless internet module 713, a near-field communication module 714, and a location information module 715.
[0846] The input unit 720 is provided for inputting audio or video signals via A / V (audio / video), and the input unit may include a camera 721 and a microphone 722.
[0847] Camera 721 may include camera module 200 according to an embodiment.
[0848] The sensing unit 740 can sense the current state of the terminal 200A, such as the open / closed state of the terminal 200A, the position of the terminal 200A, whether the user is touching the terminal, the orientation of the terminal 200A, or the acceleration / deceleration of the terminal 200A, in order to generate sensing signals for controlling the operation of the terminal 200A. For example, if the terminal 200A is a slide phone, the sensing unit can sense whether the slide phone is open or closed. In addition, the sensing unit senses whether power is supplied from the power supply unit 790 and whether the interface unit 770 is connected to an external instrument.
[0849] The input / output unit 750 is provided to generate inputs or outputs related to visual, auditory, or tactile sensations. The input / output unit 750 can generate input data for controlling the operation of the terminal 200A and can display information processed by the terminal 200A.
[0850] The input / output unit 750 may include a keyboard 730, a display module 751, a sound output module 752, and a touch screen panel 753. The keyboard 730 can generate input data through keyboard input.
[0851] Display module 751 may include a plurality of pixels, the colors of which change according to electrical signals. For example, display module 751 may include at least one of liquid crystal display, thin-film transistor liquid crystal display, organic light-emitting diode, flexible display, or three-dimensional (3D) display.
[0852] The audio output module 752 can output audio data received from the wireless communication unit 710 in call signal receiving mode, telephone communication mode, recording mode, voice recognition mode or broadcast receiving mode, or it can output audio data stored in the memory unit 760.
[0853] The touchscreen panel 753 can convert capacitance changes caused by a user touching a specific area of the touchscreen into an electrical input signal.
[0854] Storage unit 760 can store programs used to process and control controller 780, and can temporarily store input / output data (e.g., phone book, messages, audio, still images, photos, and videos). For example, storage unit 760 can store images captured by camera 721, such as photos or videos.
[0855] Interface unit 770 serves as a connection path between terminal 200A and external instruments. Interface unit 770 can receive data from external instruments, receive power and transmit the received power to internal components of terminal 200A, or transmit data from terminal 200A to external instruments. For example, interface unit 770 may include a wired / wireless headphone port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting to a device with an identification module, an audio input / output (I / O) port, a video input / output (I / O) port, and a headphone port.
[0856] The controller 780 can control the overall operation of the terminal 200A. For example, the controller 780 can perform related control and processing for voice communication, data communication, and video communication.
[0857] The controller 780 may have a multimedia module 781 for multimedia playback. The multimedia module 781 may be implemented in the controller 780 or may be implemented independently of the controller 780.
[0858] The controller 780 can perform pattern recognition processing to recognize handwritten or drawing input performed on the touchscreen as text or an image, respectively.
[0859] The power supply unit 790 can receive external power and internal power, and supply the required power to the corresponding components under the control of the controller 780.
[0860] The features, structures, and effects described in the above embodiments are included in at least one embodiment, but are not limited to one embodiment. Furthermore, those skilled in the art to which these embodiments pertain can combine or modify the features, structures, and effects shown in each embodiment in other embodiments. Therefore, it should be understood that such combinations and modifications fall within the scope of this disclosure.
[0861] Industrial applicability
[0862] The embodiments can be used in lens moving devices that can prevent damage to the spool, cover member and base due to impact and suppress fluctuations in the travel range of the spool along the optical axis, as well as camera modules and optical instruments including the lens moving device.
Claims
1. A lens-mounted device, comprising: A cover member, including a top plate and side plates connected to the top plate; The housing is disposed within the cover member; A spool is disposed within the housing; The coil is connected to the spool; A magnet is disposed on the housing, the magnet being opposite to the coil; The base is located below the spool; as well as The first buffer is disposed on the spool corresponding to the upper plate of the cover member. The bobbin includes an avoidance recess disposed on its upper surface. The method of avoiding the recess includes: a bottom surface positioned below the upper surface of the spool; and a side surface connecting the bottom surface and the upper surface of the spool. The bottom surface that avoids the recess is provided with a recess. The cover member includes a boss extending from the upper plate toward the spool, and at least a portion of the boss is disposed in the recess. The first buffer is disposed on the bottom surface of the recessed portion to contact the side surface of the recessed portion and to be spaced apart from the recessed portion.
2. The lens moving device according to claim 1, wherein, The distance along the optical axis between the bottom of the recess and at least a portion of the boss is equal to or less than the distance along the optical axis between the first buffer and the inner surface of the upper plate of the cover member.
3. The lens moving device according to claim 1, wherein, The stiffness of the first buffer is less than the stiffness of the cover member and the stiffness of the spool.
4. The lens moving device according to claim 1, comprising a second buffer disposed on the upper surface of the base. in, The first stop is provided on the lower surface of the spool. The second stop is disposed on the upper surface of the base, corresponding to the first stop along the optical axis. Wherein, the distance between the first stop and the second stop along the optical axis is equal to or less than the distance between the second buffer and the lower surface of the spool along the optical axis.
5. The lens moving device according to claim 4, wherein, The upper surface of the base includes a surface 1-1 and a surface 1-2. Surface 1-2 has a step formed together with surface 1-1 along the optical axis. Surface 1-2 is positioned lower than surface 1-1. The second stop and the second buffer are disposed on the surface of said 1-2.
6. The lens moving device according to claim 4, wherein, The stiffness of the second buffer is less than the stiffness of the base and the stiffness of the spool.
7. The lens moving device according to claim 2, wherein, The first buffer does not overlap with the boss of the cover member in the optical axis direction.
8. The lens moving device according to claim 1, comprising an upper elastic member, the upper elastic member comprising a first inner frame connected to the upper part of the spool, a first outer frame connected to the upper part of the housing, and a first frame connecting portion connecting the first inner frame and the first outer frame, and in, The recessed area corresponds to the first frame connection portion.
9. The lens moving device according to claim 8, wherein, The first buffer does not overlap with the first frame connection portion and is spaced apart from the first frame connection portion.
10. The lens moving device according to claim 5, wherein, The upper surface of the base includes a surface that connects the 1-1 surface and the 1-2 surface, and The lower surface of the second buffer contacts the 1-2 surfaces of the base, and the second buffer contacts the surface of the base.
11. The lens moving device according to claim 5, wherein, The second buffer is spaced apart from the second stop.
12. The lens moving device according to claim 1, comprising: The second buffer is disposed on the upper surface of the base, and The lower elastic member includes a second inner frame connected to the lower part of the spool, a second outer frame connected to the lower part of the housing, and a second frame connecting portion connecting the second inner frame and the second outer frame. The second buffer does not overlap with the second frame connection in the optical axis direction.
13. The lens moving device according to claim 1, wherein, The first buffer is made of rubber, silicone, foam rubber, polyacetal or polyoxymethylene, or polyurethane.
14. The lens moving device according to claim 1, wherein, The upper surface of the first buffer is positioned higher than the upper surface of the spool.
15. A lens-mounted device, comprising: A cover member, including a top plate and side plates connected to the top plate; The housing is disposed within the cover member; A spool is disposed within the housing; An upper elastic member is connected to the upper part of the spool and the upper part of the housing; The coil is connected to the spool; A magnet is disposed on the housing, the magnet being opposite to the coil; The base is located below the spool; as well as A buffer, corresponding to the upper plate of the cover member, is disposed on the spool. in, The upper surface of the bobbin includes: The first surface is connected to the upper surface of the upper elastic member; A second surface, the second surface having a step formed together with the first surface along the optical axis, the second surface being positioned lower than the first surface; and The third surface connects the first surface and the second surface. The spool includes a recess that extends from the second surface. The cover member includes a boss extending in a direction from the upper plate to the spool, at least a portion of the boss being disposed in the recess, and The buffer is disposed on the second surface to contact the third surface and spaced apart from the recess.
16. A camera module, comprising: lens; Lens moving device according to any one of claims 1 to 15; as well as Image sensor.
17. A mobile phone comprising a camera module according to claim 16.
Citation Information
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