Lens drive device and camera module including the same

Abstract

To reduce power, miniaturize, and improve reliability of a lens driving device and a camera module including the lens driving device.SOLUTION: The lens driving device comprises: a housing 140; a bobbin 110 in the housing; a first coil 120 disposed on the bobbin; a first sensor 170 in the housing; a first magnet disposed in the housing and facing the first coil; a circuit board 250 disposed under the first magnet and including a second coil facing the first magnet; an upper elastic member 150 disposed to an upper portion of the housing; and a support member 220 connecting the upper elastic member and the circuit board. The housing includes first and second corner regions. The support member includes first to fourth wires. The first and second wires are arranged in the first corner region, and the third and fourth wires are arranged in the second corner region. The upper elastic member includes first to fourth upper elastic members. Part of the first and second upper elastic members are arranged in the first corner region, and part of the third and fourth upper elastic members are arranged in the second corner region.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The embodiments relate to a lens driving device and a camera module including the same.

Background Art

[0002] With the widespread popularity of various portable terminals and the commercialization of wireless Internet services, consumer requirements related to portable terminals have also diversified. Accordingly, various additional devices are attached to portable terminals.

[0003] Among them, a typical example is a camera module that can photograph a subject as a photo or video, save the image data, and then, if necessary, edit and transmit it.

[0004] In recent years, there has been an increasing demand for small camera modules for image input devices such as personal computers, camera phones, PDAs, smartphones, toys, and various multimedia fields, and ultimately information terminals such as surveillance cameras and video tape recorders. For a camera module mounted on a small electronic product such as a smartphone, during use,

[0005] the camera module is frequently impacted, and during shooting, the camera module may vibrate slightly due to hand shake of the user, etc. In view of such points, in recent years, anti-shake means has been added to the camera It is difficult to apply the technology of a voice coil motor (VCM) used in existing general camera modules to a camera module for ultra-small size and low power consumption, and related research is being actively conducted.

[0006] In the case of a camera module mounted on a small electronic product such as a smartphone, during use, the camera module is frequently impacted, and during shooting, the camera module may vibrate slightly due to hand shake of the user, etc. In view of such points, in recent years, anti-shake means has been added to the camera module. There is a need for development of technology to further attach to the LaModule.

[0007] Various methods for stabilizing camera shake are being researched. One such method is the optical module. The camera is moved in the x and y directions, which are perpendicular to the optical axis, to correct camera shake. There is a technology that can do this. In this technology, the optical system is positioned perpendicular to the optical axis for image correction. Because it requires internal movement and adjustment, its structure is complex and not suitable for miniaturization.

[0008] Furthermore, there is a requirement for accurate and rapid focusing of the optical module. [Overview of the project] [Problems that the invention aims to solve]

[0009] The embodiment includes an inexpensive sensor that can accurately sense the displacement of the bobbin, saving power. , lens drive unit and camera module including the same for miniaturization and improved reliability To provide. [Means for solving the problem]

[0010] The lens driving device according to the embodiment has at least one lens mounted on the inside and on the outer circumference A bobbin with a first coil attached to its surface; a bobbin facing the first coil A first magnet positioned around the periphery; a housing supporting the first magnet; the bobi Upper and lower elastic members coupled to the bobbin and the housing; change of the bobbin in the first direction A first sensor that senses position; a second magnet positioned opposite the first sensor. T; a base positioned at a certain distance from the housing; opposite the first magnet A second coil positioned to face; a circuit board to which the second coil is attached; the H The wedge is supported so as to be movable in second and third directions perpendicular to the first direction relative to the base. Multiple supports that hold and connect at least one of the upper or lower elastic members to the circuit board Holding member; and sensing the displacement of the housing relative to the base in the second and third directions. It includes a second sensor.

[0011] The upper elastic member includes at least four first to fourth upper elastic members that are separated from each other. The first sensor is connected to the plurality of support members via the first to fourth upper elastic members. It is possible to do so.

[0012] Each of the first to fourth upper elastic members is connected to the bobbin as a first inner frame ; First outer frame coupled to the housing and connected to the support member ; and a first frame connecting portion that connects the first inner frame and the first-1 outer frame. It can include...

[0013] The lower elastic member includes at least two first and second lower elastic members that are separated from each other. Furthermore, the first coil is connected to the plurality of support members via the first and second lower elastic members. It can be done.

[0014] Each of the first and second lower elastic members is coupled to the bobbin by at least one A second inner frame; at least one second outer frame coupled to the housing; and the at least one second inner frame and the at least one second outer frame It can include a connecting section for the second-first frame.

[0015] The at least one second outer frame includes a plurality of second outer frames, and the first and Each of the first and second lower elastic members may further include a second-2 frame connecting portion that connects the plurality of second outer frames.

[0016] The at least four upper elastic members further include fifth and sixth upper elastic members separated from each other, and each of the fifth and sixth upper elastic members is formed in a direction perpendicular to the first direction and includes a first-2 outer frame coupled to the housing and connected to the support member.

[0017] First, each of the first and second lower elastic members may further include a bent portion bent in the first direction from the second-2 frame connecting portion toward the upper elastic member. Each of the fifth and sixth upper elastic members may further include a connecting frame connecting the bent portion and the first-2 outer frame.

[0018] Alternatively, each of the fifth and sixth upper elastic members may further include a connecting frame bent in the first direction from the first-2 outer frame to the second-2 frame connecting portion. The bent portion, the connecting frame, and the first-2 outer frame may be integrally formed.

[0019] Alternatively, each of the first and second lower elastic members may further include a bent portion bent in the first direction from the second-2 frame connecting portion to the first-2 outer frame. [[ID=4​​​​​​The first and second outer frames and the second and third frame connecting portions are made of the metal pieces. They can be connected.

[0021] Each of the first and second lower elastic members is located within the wires at both ends of the first coil. A coil frame connected to an end wire; and the coil frame and the at least one second It may further include second-to-third frame connecting sections that connect the inner frames.

[0022] The first sensor can be placed, coupled, or mounted on the bobbin and moved together. The first sensor includes a sensor substrate coupled to the bobbin, and the first sensor is the sensor base It can have a shape that can be arranged, joined, or mounted on a plate. The first sensor is the sensor It can be positioned, coupled, or mounted on the upper, lower, or center of the outer circumferential surface of the substrate. The sensor substrate includes mounting holes formed on its outer surface, and the first sensor is mounted It can be inserted into the hole.

[0023] The sensor substrate has a shape that faces the outer surface of the bobbin, and the first sensor is A fuselage that is arranged, joined, or mounted; an elastic member contact portion protruding from the fuselage in the first direction. ;and a rotation formed on the body that connects the terminals of the first sensor and the elastic member contact portion. It may include a road pattern. The elastic member contact portion is connected to the first to fourth upper elastic members. It can be connected.

[0024] The first and second magnets may be separate.

[0025] Alternatively, the first and second magnets may be integrated. Center of the first sensor A virtual central horizontal line passing through and perpendicular to the optical axis coincides with the upper end of the first magnet. The first sensor and the first magnet can be arranged facing each other. The bobbin is positioned relative to the point where the central horizontal line coincides with the upper end of the first magnet, and the optical axis It can move up and down in that direction.

[0026] The shapes and number of the aforementioned plurality of support members can be symmetrical with respect to each other in the second and third directions. Cut.

[0027] Alternatively, the lower elastic member may consist of at least four first to fourth lower elastic parts that are separated from each other. The material includes the first sensor, and the first sensor is connected to the plurality of support members via the first to fourth lower elastic members. It can be connected to.

[0028] Each of the first to fourth lower elastic members is connected to the bobbin as a first inner frame ; First outer frame coupled to the housing and connected to the support member ; and a first frame connecting portion that connects the first inner frame and the first-1 outer frame. It can include...

[0029] The upper elastic member includes at least two first and second upper elastic members that are separated from each other. Furthermore, the first coil is connected to the plurality of support members via the first and second upper elastic members. It can be done.

[0030] Each of the first and second upper elastic members is coupled to the bobbin by at least one A second inner frame; at least one second outer frame coupled to the housing; and the at least one second inner frame and the at least one second outer frame It can include a connecting section for the second-first frame.

[0031] The at least one second outer frame includes a plurality of second outer frames, and the first and Each of the second upper elastic members connects the plurality of second outer frames. It may further include a frame connecting section.

[0032] The at least four lower elastic members include the fifth and sixth lower elastic members which are separated from each other. The fifth and sixth lower elastic members are also included in the direction perpendicular to the first direction. First and second outer parts formed and coupled to the housing and connected to the support member It can include frames.

[0033] Each of the first and second upper elastic members extends from the second-2 frame connecting portion downward The material may further include a bent portion that is bent in the first direction toward the side elastic member. Each of the fifth and sixth lower elastic members connects the bent portion and the first and second outer frames. It may further include a connecting frame. The bent portion, the connecting frame, and The first and second outer frames can be formed as a single unit.

[0034] Alternatively, each of the fifth and sixth lower elastic members may be located from the first and second outer frames. The connecting frame further includes the connecting frame which is bent in the first direction up to the 2-2 frame connecting portion. It is possible.

[0035] Alternatively, each of the first and second upper elastic members is connected to the 2-2 frame connecting portion. The bent portion further includes the first and second outer frames, which are bent in the first direction. It is possible.

[0036] Alternatively, the lens drive device may further insert or attach a metal piece to the housing. The first and second outer frames and the second and third frame connecting portions are connected by the metal pieces. They can be linked together.

[0037] Each of the first and second upper elastic members is one of the wires at both ends of the first coil. A coil frame connected to an end wire; and the coil frame and the at least one second It may further include second-to-third frame connecting sections that connect the inner frames.

[0038] A lens drive device according to another embodiment includes a bobbin for fixing the lens part, and the outside of the bobbin. A movable part including a coil section provided on the side; a stator supporting the movable part; the outside of the bobbin A first sensor provided on the side for sensing the movement of the bobbin; and the bobbin and the fixed A first elastic part, which has both ends connected to one side of the stator and applies power to the coil portion, and Both ends are connected to the other side of the bobbin and the stator, respectively, and the first sensor is electrically connected. It may include an elastic member that includes a second elastic portion connected to it.

[0039] Furthermore, the first elastic portion is positioned above the bobbin, and the second elastic portion is positioned above the bobbin. It can be positioned on the lower side. Alternatively, the first elastic part can be positioned on the lower side of the bobbin. The second elastic portion can be positioned above the bobbin.

[0040] Furthermore, the first elastic portion and the second elastic portion each have an outer portion that is fastened to the movable part, and a front portion. An inner part fastened to the bobbin, and a connecting part that connects the outer part and the inner part to provide elastic force. It can include this.

[0041] Furthermore, the first elastic part is formed from the first spring and the second spring, which are separated from each other. It is possible to become one.

[0042] Furthermore, the first spring and the second spring have terminals that are soldered to the circuit board. They can be formed by folding from their outer edges.

[0043] Furthermore, the first spring and the second spring are made from leaf springs with symmetrical shapes. It is possible to become one.

[0044] Furthermore, the second elastic portion is made smaller so as to match the number of terminals provided on the first sensor. Each can consist of two or more leaf springs.

[0045] At least one of the first or second elastic parts is relative to the direction perpendicular to the direction of movement of the moving element. It can have a shape that is symmetrical to the other.

[0046] The stator has a magnet portion positioned in a location corresponding to the coil portion; A housing for fixing the lid; and a base for supporting the movable part and the housing. It is possible.

[0047] Furthermore, camera modules according to other embodiments include the lens drive device and image sensor. - may include. For example, a camera module may include a bobbin that fixes the lens part, and front A moving element including a coil portion provided on the outer surface of the bobbin, and a stator that moves the moving element. The first sensor is provided on the outer surface of the bobbin and senses the movement of the bobbin, and Both ends are connected to one side of the bobbin and the stator, respectively, and power is applied to the coil section. The first elastic part and the bobbin and the stator, respectively, are connected at both ends to the other side, and the first An elastic member including a second elastic part electrically connected to a sensor, and an elastic member electrically connected to the elastic member A substrate, an image sensor provided on the substrate, and the moving element and the stator It may include a cover can that houses and forms the exterior.

[0048] Furthermore, the second elastic portion is made smaller so as to match the number of terminals provided on the first sensor. It can consist of at least two or more leaf springs.

[0049] Furthermore, the first elastic portion comprises a first spring and a second spring, which are arranged apart from each other. It can include two leaf springs as a base. [Effects of the Invention]

[0050] The lens drive device and camera module including the same according to the embodiment sense the displacement of the bobbin. While using sensors to perform this task, the bobbin is not tilted, and the bobbin's displacement is accurately measured. It can sense and respond without increasing the number of parts and reducing the weight of the housing. This improves performance and allows for miniaturization by directly placing the first sensor on the bobbin. This allows for a lighter design compared to existing designs that place magnets on the bobbin, and it also requires less power. This is improved by reducing wear and using an elastic member as an electrical coupling member for the terminals of the first sensor. It has high reliability. [Brief explanation of the drawing]

[0051] [Figure 1] A schematic perspective view of a lens drive device according to one embodiment is shown. [Figure 2] Figure 1 shows an exploded perspective view of the lens drive mechanism illustrated in the example. [Figure 3] Figures 1 and 2 show a perspective view of the lens drive device in an embodiment in which the cover member illustrated in the examples has been removed. [Figure 4] An exploded perspective view of the bobbin, first coil, magnet, first sensor, and sensor substrate in the lens driving device according to the embodiment is shown. [Figure 5a] Figure 4 shows a plan view of the bobbin and magnet. [Figure 5b] Figure 4 shows a perspective view of another embodiment of the sensor substrate. [Figure 5c] Figure 4 shows a rear perspective view of one embodiment of the first sensor and sensor substrate shown. [Figure 6] A plan perspective view of the housing according to the embodiment is shown. [Figure 7] An exploded perspective view of the housing and magnet from the bottom, according to the embodiment, is shown. [Figure 8] Figure 3 shows a cross-sectional view of the I-I' line. [Figure 9] This graph shows the accuracy based on the optimal position of the first sensor. [Figure 10] This shows a plan perspective view in which the bobbin, housing, upper elastic member, first sensor, sensor substrate, and multiple support members are connected. [Figure 11] This shows a bottom perspective view of the bobbin, housing, lower elastic member, and multiple support members connected together. [Figure 12] A perspective view of the combined upper elastic member, lower elastic member, first sensor, sensor substrate, base, support member, and circuit board according to the embodiment is shown. [Figure 13] The exploded perspective view of the base, second coil, and circuit board is shown. [Figure 14] A schematic side cross-sectional view of a lens drive device according to another embodiment is shown. [Figure 15] A perspective view of the first elastic portion according to the embodiment is shown. [Figure 16] A perspective view of the second elastic section according to the embodiment is shown. [Modes for carrying out the invention]

[0052] The following will describe the present invention in detail based on examples, which will be helpful in understanding the invention. The details will be explained with reference to the attached drawings. However, the embodiments of the present invention are various other It is possible to transform it into this form, and the scope of the present invention is interpreted as being limited to the embodiments detailed below. It must not be done. Examples of the present invention are provided to those skilled in the art to more fully illustrate the present invention. It is something that is done.

[0053] In describing embodiments of the present invention, each element is referred to as “on or below.” When described as being formed under), on or under r) is when two elements are in direct contact with each other or This is when one or more other elements are placed between the two elements. This includes everything that is indirectly formed by being placed. Also, "on top or bottom (on When expressed as "or under)", it refers to using one element as a reference point. It can include not only the meaning of "direction" but also "below."

[0054] Also, the terms “first,” “second,” “upper / upper / top,” and “lower / lower / bottom” are used below. Relational terms such as "of" indicate a physical or logical relationship between such entities or elements. Or, without necessarily requiring or including a procedure, one entity or element is equivalent to another entity or requirement. It can also be used solely to distinguish it from the original element.

[0055] In the drawings, the thickness and size of each layer are exaggerated or omitted for the sake of clarity and ease of explanation. They were either drawn or given a schematic diagram. Furthermore, the size of each component was given as its actual size. It does not reflect that.

[0056] The following describes the lens drive devices 100 and 400 according to the embodiment, based on the attached drawings. Let me explain. For the sake of explanation, the lens drive devices 100 and 400 in the embodiment are the Cartesian constellation. The explanation will use the (x, y, z) coordinate system, but it can also be explained using other coordinate systems. Examples are not limited to these. In each figure, the x and y axes are perpendicular to the z axis, which is the optical axis. The direction is straight, and the z-axis direction, which is the optical axis, is called the 'first direction', while the x-axis direction is called the 'second direction'. This is called the 'direction', and the direction in the y-axis direction can be called the 'third direction'.

[0057] One example Small camera module for mobile devices such as smartphones or tablet PCs The 'image stabilization device' applied to still images is a device that corrects camera shake caused by the user's hand movements during still image capture. To prevent vibrations from obscuring the outlines of captured images, It can mean a device configured in that way.

[0058] Furthermore, an 'autofocusing device' automatically adjusts the focus of the image of the subject using an image sensor. This is a device that forms an image on the surface. Such image stabilization devices and autofocus devices The configuration can be varied. The lens driving device 100 according to the embodiment has at least one An optical module consisting of several lenses is moved in a first direction parallel to the optical axis, or perpendicular to the first direction. By moving it relative to the planes formed in the straight second and third directions, image stabilization operation and / or It can perform autofocusing operations.

[0059] Figure 1 shows a schematic perspective view of a lens driving device 100 according to one embodiment, and Figure 2 is illustrated in Figure 1. An exploded perspective view of the lens drive device 100 is shown.

[0060] Referring to Figures 1 and 2, the lens drive device 100 according to the embodiment is a first lens drive unit The assembly may include a knit, a second lens drive unit, and a cover member 300.

[0061] The first lens drive unit can perform the role of the autofocus device mentioned above. In other words, the first lens drive unit is the mutual interaction of the magnet 130 and the first coil 120. The action can move the bobbin 110 in the first direction.

[0062] The second lens drive unit can perform the function of the aforementioned image stabilization device. The second lens drive unit operates through the interaction of the magnet 130 and the second coil 230. This unit is responsible for moving all or part of the first lens drive unit in the second and third directions. It is possible.

[0063] The cover member 300 can be configured in a roughly box shape, and the first and second lens drive units It can be surrounded.

[0064] Figure 3 shows a lens drive assembly in an embodiment in which the cover member 300 illustrated in Figures 1 and 2 has been removed. A perspective view of the position is shown.

[0065] The first lens drive unit consists of a bobbin 110 and a first coil. 120, Magnet 130, Housing 140, Top The side elastic member 150, the lower elastic member 160, the first sensor 170 and the sensor substrate 180 are It can include.

[0066] Figure 4 shows a lens drive device according to an embodiment, comprising a bobbin 110, a first coil 120, and a magnet. Net 130; 130-1, 130-2, 130-3, 130-4, first sensor 170 An exploded perspective view of the sensor board 180 is also shown.

[0067] Figure 5a shows the bobbin 110 and magnets 130:130-1, 130-2 shown in Figure 4. Figures 130-3 and 130-4 show plan views, and Figure 5b shows the sensor substrate 180 shown in Figure 4, as well as other components. Figure 5c shows a perspective view according to an embodiment, and Figure 4 shows the first sensor 170 and sensor base. A rear perspective view of one embodiment of plate 180 is shown.

[0068] Referring to the aforementioned drawing, the bobbin 110 is positioned in the optical axis direction within the internal space of the housing 140. It can be mounted so as to be reciprocally movable in a first direction or in a direction parallel to the first direction. The first coil 120 is attached to the outer surface of the bobbin 110 as illustrated in Figure 4, The coil 120 and the magnet 130 can interact electromagnetically. The magnet 130 is positioned around the bobbin 110, opposite the first coil 120. It is possible.

[0069] Furthermore, the bobbin 110 moves upward in a first direction parallel to the optical axis or in a direction parallel to the first direction and / Or when it descends to perform the autofocus function, the upper and lower elastic members 150 , can be elastically supported by 160. For this purpose, the upper and lower elastic members 150 and 160 can be connected to the bobbin 110 and housing 140 as described later. Cut.

[0070] Although not shown in the diagram, the lens drive mechanism is located on the inside side (i.e., the inside) of the bobbin 110. It may include a lens barrel (not shown) on which at least one lens can be attached. The lens barrel can be mounted inside the bobbin 110 in various ways. For example, The lens barrel can also be fixed directly inside the bobbin 110, or the lens barrel A single lens can also be formed integrally with the bobbin 110 without a barrel. The combined lens may consist of a single lens, or two or more lenses may make up the optical system. It can also be configured in such a way.

[0071] In other embodiments, although not shown, a female screw portion is formed on the inner circumferential surface of the bobbin 110. The outer surface of the lens barrel has a male threaded portion that corresponds to the female threaded portion, and these are screwed together. The lens barrel can be coupled to the bobbin 110 using the formula, but the examples are not limited to this. In other embodiments, the bobbin 110 and the lens barrel are joined in a non-screwed manner using adhesive. It is also possible to do so. Of course, even with the screw-type fastening method, adhesive can be used to seal the threaded parts after fastening. It can also be attached more securely.

[0072] The bobbin 110 may include first and second protrusions 111 and 112.

[0073] The first protruding portion 111 consists of a guide portion 111a and a first stopper (stopp er)111b may be included. The guide portion 111a is the installation position of the upper elastic member 150. It can also perform the role of guiding. For example, as illustrated in Figure 3, Guide section 1 11a guides the path through which the first frame connecting portion 153 of the upper elastic member 150 passes. Yes, it is possible. For this purpose, according to the embodiment, a plurality of guide portions 111a are perpendicular to the first direction It can be provided protruding in the 2nd and 3rd directions. Also, as illustrated, the guide portion 111a It can also be arranged symmetrically with respect to the center of the bobbin 110 on the plane formed by the x and y axes. Unlike the example, it can also be provided in an asymmetrical structure that eliminates interference with other parts. .

[0074] The second projection 112 can be provided projecting in second and third directions perpendicular to the first direction. Furthermore, the upper surface 112a of the second protrusion 112 has the first inner frame of the upper elastic member 150, which will be described later. It can have a shape that allows for the attachment of the 151.

[0075] Figure 6 shows a plan perspective view of the housing 140 according to an embodiment, and Figure 7 shows the housing according to an embodiment. The bottom exploded perspective view of the 140 and 130 magnets is shown.

[0076] Referring to Figure 6, the housing 140 corresponds to the first and second protrusions 111 and 112. It may include a first mounting recess 146 formed at a specific position.

[0077] Furthermore, the first stopper 111b and the second protrusion 112 of the first protrusion 111 are connected to the bobbin 1 10 is a first direction or first direction which is parallel to the optical axis for the autofocus function. When moving in a direction parallel to the direction, if the bobbin 110 moves beyond the specified range due to external impact, etc. Also, the bottom surface of the bobbin 110 body directly collides with the top surface of the base 210 and the circuit board 250. It can serve to prevent this. For this purpose, the first stopper 111b is the bobbin A portion protrudes more from the outer surface of 110 in a second or third direction, which is circumferential, than the guide portion 111a. The second protrusion 112 can also be provided, and the upper surface 112a to which the upper elastic member 150 is attached. They can be extended further to the sides.

[0078] Referring to Figure 6, the bottom surfaces of the first and second protrusions 111 and 112 and the first mounting recess 146 If the initial position is set to the state where the bottom surface 146a is in contact, the autofocus function is already One-way in existing voice coil motors (VCMs) It can be controlled like a control system. That is, current is supplied to the first coil 120. Sometimes the bobbin 110 rises, and when the current supply is cut off, the bobbin 120 falls down. This enables the implementation of an autofocus function.

[0079] However, the bottom surfaces of the first and second protrusions 111 and 112 and the bottom surface 146 of the first mounting recess 146 If the initial position is set to a position a certain distance away from the target, the autofocus function will Unlike existing voice coil motors that use bidirectional control, this motor controls based on the direction of the current. This is possible. In other words, it is possible to move the bobbin 110 upward or downward parallel to the optical axis. This can also be used to implement an autofocus function. For example, when a forward current is applied... If so, the bobbin 110 can move upward, and if a reverse current is applied, the bobbin The 110 can be moved downwards.

[0080] The space of the first width (W1) between the first and second protrusions 111 and 112 and the corresponding housing The third protrusion 148 of the housing 140 is formed to bulge out at position 140. The surface facing the bobbin 110 from the third protrusion 148 is the same as the side shape of the bobbin 110. It can have the shape shown in Figure 4. The first width (W1) between them and the second width (W2) of the third projection 148 shown in Figure 6 have a certain tolerance. It can be formed in such a way that between the first and second protrusions 111 and 112 Therefore, the rotation of the third protrusion 148 can be restricted. Even if 0 is subjected to a force in a direction that rotates around an optical axis other than the optical axis, the third protrusion 148 will This prevents the rotation of bin 110.

[0081] On the other hand, according to the embodiment, the first sensor 170 is placed, coupled or mounted on the bobbin 110. Therefore, it can be moved together with the bobbin 110. The first sensor 170 is parallel to the optical axis. The displacement of the bobbin 110 in one direction or in a direction parallel to the first direction is sensed, and the sensed result is... It can be output as a feedback signal. The feedback signal controls bobbin 1 Using the results of sensing the displacement of 10 in the first direction or a direction parallel to the first direction, bobbin 1 The displacement of 10 in the first direction or in a direction parallel to the first direction can be adjusted.

[0082] The first sensor 170 can be arranged and coupled to the bobbin 110 or housing 140 in various configurations. It can be implemented, depending on the form in which the first sensor 170 is positioned, coupled or implemented. The first sensor 170 can be subjected to current in various ways.

[0083] According to one embodiment, the first sensor 170 is fastened to the housing 140, and the first sensor 1 A separate sensor magnet (not shown) opposite to 70 is placed on the bobbin 110. It is also possible. The first sensor 170 is located in the first mounting recess 14 of the housing 140 as illustrated in Figure 6. It is positioned, coupled, or mounted on the side or corner of 6 (for example, on the surface of the third projection 148). It is also possible. In this case, the magnetic force exerted by a separate sensor magnet on magnet 130 As a result, the bobbin 110 moves in the first direction which is the optical axis direction or in a direction parallel to the first direction. It can be tilted, which can reduce the accuracy of the feedback signal. Taking this into consideration, separately At the position on the bobbin 110 where the interaction between the sensor magnet and magnet 130 is minimized. Separate sensor magnets can be placed, coupled, or mounted.

[0084] In other embodiments, the first sensor 170 is directly positioned on the outer surface of the bobbin 110. They can be assembled or mounted. In this case, a surface electrode (not shown) is placed on the outer surface of the bobbin 110. A surface electrode is formed, and the first sensor 170 can have current applied to it via the surface electrode. .

[0085] In another embodiment, as shown in the figure, the first sensor 170 is indirectly connected to the bobbin 110. They can be arranged, combined, or implemented in a specific manner. For example, the first sensor 170 is a sensor The sensor substrate 180 is placed, bonded, or mounted on the substrate 180 and bonded to the bobbin 110. This is possible. In other words, the first sensor 170 is transmitted to the bobbin 1 via the sensor substrate 180. It can be indirectly placed, combined, or implemented in 10.

[0086] As in the other embodiments described above and yet another embodiment, the first sensor 170 is on the bobbin 110 When placed directly or indirectly, the sensor magnet is connected to magnet 130. It can also be placed separately, and magnet 130 is used as a sensor magnet. It is also possible to do so.

[0087] The first sensor 170 is indirectly positioned on the bobbin 110 via the sensor substrate 180. , coupled or mounted, with magnet 130 used as a sensor magnet This will be explained, but the examples are not limited to these.

[0088] Referring to Figures 4 and 5a, a support groove 114 is provided on the side of the bobbin 110, and the sensor The substrate 180 can be inserted into the support groove 114 and coupled to the bobbin 110. For example, the sensor substrate 180 can be ring-shaped as shown in the figure, but in reality The examples are not limited to the shape of the sensor substrate 180. The support groove 114 is on the outer surface of the bobbin 110 and It can be provided between the first and second protrusions 111 and 112. In this case, the first sensor -170 can have a shape that allows it to be placed, coupled, or mounted on the sensor substrate 180. For example, as illustrated in Figures 4 and 5b, the first sensor 170 is located on the sensor substrate 180. They are arranged, combined, or mounted in various forms on the upper A1, middle A2, or lower A3 of the outer periphery. This is possible. In this case, the first sensor 170 is externally connected via the circuit of the sensor board 180. A current can be applied to it. For example, as illustrated in Figure 5b, the sensor substrate 18 Mounting holes 183 are formed on the outer surface of 0, and the first sensor 170 is placed in the mounting holes 183 and connected. Alternatively, it may be implemented. At least one surface of the mounting hole 183 has an inclined surface (not shown). By forming this, epoxy injection for the assembly of the first sensor 170 becomes smoother. It can be configured to do so. In addition, epoxy or the like can be injected into the mounting hole 183. It is not possible to do so, but epoxy or the like can be injected to improve the positional force and bonding force of the first sensor 170. Alternatively, it can also increase implementation capabilities.

[0089] Alternatively, as illustrated in Figure 4, the first sensor 170 is located on the front surface of the sensor substrate 180. It can be attached and supported by adhesive materials such as porcelain or double-sided tape. See Figure 4 for an example. As shown, the first sensor 170 is positioned, coupled, or mounted in the center of the sensor substrate 180. It can also be done.

[0090] The bobbin 110 is placed, coupled to, or mounted on the sensor substrate 180, the first sensor 170 It may include a receiving recess 116 suitable for accommodating the first And it can be formed in the space between the second protrusions 111 and 112.

[0091] The sensor substrate 180 consists of a body 182 and elastic member contact portions 184-1, 184-2, 184 -3, 184-4 and circuit patterns L1, L2, L3, L4 can be included.

[0092] Support groove 1 formed between the outer surface of the bobbin 110 and the first and second protrusions 111 and 112 If 14 has the same shape as the outer surface of the bobbin 110, the body 1 is inserted into the support groove 114. 82 can have a shape that allows it to be inserted into and fixed in the support groove 114. Examples are shown in Figures 3 to 5a. As shown, the support groove 114 and the body 182 can have a circular flat cross-sectional shape, but Examples are not limited to this. According to other embodiments, the support groove 114 and the body 182 have polygonal cross-sections. It can also have a shape.

[0093] The body 182 of the sensor board 180 has the first sensor 170 arranged and connected to its outer surface. This includes the first segment to be implemented and the second segment extending from the first segment. This is possible. Also, the sensor board 180 has an opening in the part facing the first segment. (Opening) 181 is provided so that it can be easily inserted into the support groove 114. While this is possible, the embodiments are not limited to a specific shape of the sensor substrate 180.

[0094] Furthermore, the elastic member contact portions 184-1, 184-2, 184-3, and 184-4 are located on the fuselage 182 From a direction that allows contact with the first inner frame 151, for example, the first direction which is the optical axis or the second It can protrude in a direction parallel to one direction. Elastic member contact portion 184-1, 184-2, 184-3 and 184-4 are connected to the first inner frame 151 of the upper elastic member 150, which will be described later. This is the part that will be done.

[0095] Circuit patterns L1, L2, L3, and L4 are formed on the fuselage 182, and the first sensor 170 and The elastic member contact parts 184-1, 184-2, 184-3, and 184-4 are electrically connected. This is possible. For example, the first sensor 170 can consist of a Hall sensor, and magnetic force Any sensor capable of detecting change can be used.

[0096] If the first sensor 170 consists of a Hall sensor, the Hall sensor 170 has multiple pins It can have pins. For example, multiple pins can include a first and second pin. For example, referring to Figure 5c, the first pin is connected to voltage and the first pin P is connected to ground. It may include pins 11 and 1-2 P12, and the second pin outputs the detected result. This may include pins 2-1 P21 and 2-2 P22. Here, 2-1 and The detection result, which is a feedback signal output via pins 2-2 P21 and P22, is the current. The form may be, but is not limited to, the form of the feedback signal in the embodiment.

[0097] Pins P11, P12, P11, P12 of the first sensor 170, P12 P21 and P22 are connected to the elastic member contact portion 184 via circuit patterns L1, L2, L3, and L4. They can be electrically connected to -1, 184-2, 184-3, and 184-4, respectively. For example, referring to Figure 5c, the circuit patterns are the first, second, third, and fourth lines L 1, L2, L3, L4 pins 1-1, 1-2, 2-1 and 2-2 P11, P12, P21, P22 are the contact portions 184-4, 184 of the fourth, third, second, and first elastic members. -3, 184-1, and 184-2 can be connected to each other, respectively. According to one embodiment, The first to fourth lines L1, L2, L3, and L4 can also be formed in a way that makes them visible to the naked eye. According to other embodiments, these lines L1, L2, L3, and L4 are not visible to the naked eye on the body. It can also be formed into body 182.

[0098] Figure 8 shows a cross-sectional view of the I-I' line shown in Figure 3.

[0099] Referring to Figure 8, the first sensor 170 passes through the center of the optical axis and is perpendicular to the optical axis. The virtual central horizontal line 172 formed in two directions coincides with the upper end 131 of the magnet 130. Thus, the first sensor 170 can be positioned opposite the magnet 130.

[0100] In this case, the point where the virtual center horizontal line 172 coincides with the upper end 131 of the magnet 130 is used as the basis. As a reference point, the bobbin 110 moves up and down in the first direction which is the optical axis direction or in a direction parallel to the first direction. The examples are not limited to those that can be moved.

[0101] Figure 9 is a graph showing the accuracy based on the position of the first sensor 170, with the horizontal axis representing the position of the first sensor 170. The position of -170 is shown, and the vertical axis represents the accuracy of the first sensor 170.

[0102] Referring to Figures 8 and 9, the virtual center horizontal line 172 is the upper end 131 of the magnet 130. It can be seen that the detection efficiency of the first sensor 170 is maximized when it is positioned in that position.

[0103] Figure 10 shows the bobbin 110, housing 140, upper elastic member 150, and first sensor 170. The image shows a plan perspective view in which the sensor substrate 180 and multiple support members 220 are connected.

[0104] Figure 11 shows the bobbin 110, housing 140, lower elastic member 160, and multiple support members 2. The bottom perspective view of the combined 20 is shown.

[0105] Meanwhile, the first coil 120 is wound onto the outer surface of the bobbin 110 by a worker or machine. Afterward, the start and end wires, which are the ends of the first coil 120, are each connected to the bottom surface of the bobbin 110. It can be wound up and fixed onto a pair of winding projections 119 that protrude in the direction. The position of the end of the first coil 120, which is wound onto the winding projection 119 by the worker, is variable. As illustrated in Figure 11, a pair of winding projections 119 are arranged symmetrically around the center of the bobbin 110. It can be placed in this way, but the examples are not limited to this.

[0106] As illustrated in Figure 8, the first coil 120 is located in a coil groove formed on the outside of the bobbin 110. It can be inserted into 118. Also, as illustrated in Figure 2, the first coil 120 is multi It can also consist of a rectangular ring-shaped coil block, but is not limited to this. In other embodiments, the first coil 120 is wound directly onto the outer surface of the bobbin 110. It can also be wound using a coil ring (not shown). Here, coil The ring is similar to the method in which the sensor board 180 is inserted into the support groove 114 and fixed in place. The first coil 120 can be connected to the bobbin 110, and the first coil 120 is wound around the outside of the bobbin 110. Instead of being positioned, it can be wound onto a coil ring. In either case, the first The start and end wires of the coil 120 can be wound around and fixed to the winding projection 119, and other structures The same applies to "naru".

[0107] The first coil 120 can be formed in a roughly octagonal shape, as shown in Figure 2. This corresponds to the shape of the outer surface of the bobbin 110, as illustrated in Figure 5a, bobbin 11 This is because 0 is an octagon. Also, at least four faces of the first coil 120 are formed in a straight line. This can be done, and the corners connecting these surfaces can also be formed in a straight line, however This is not the only option; it can also be formed into a round shape.

[0108] The linearly formed portion in the first coil 120 corresponds to the surface of the magnet 130. It can be formed in such a way. Also, the first coil 120 and the corresponding magnet 13 The plane of 0 can have the same curvature as the first coil 120. That is, the first coil If the 120 is straight, then the corresponding surface of the magnet 130 can also be straight. If the first coil 120 is curved, then the corresponding surface of the magnet 130 is also curved. This is possible. Also, even if the first coil 120 is curved, the corresponding surface of the magnet 130 is It can be a straight line, and vice versa.

[0109] The first coil 120 moves the bobbin 110 in a first direction parallel to the optical axis or in a direction parallel to the first direction. It is used to perform the autofocus function by moving in that direction, and when current is supplied, the magnet An electromagnetic force can be formed through interaction with net 130, and the formed electromagnetic force This allows the bobbin 110 to be moved in the first direction or in a direction parallel to the first direction.

[0110] The first coil 120 can be configured to correspond with the magnet 130. Net 130 consists of a single body, and the entire surface facing the first coil 120 has the same polarity. If configured in this way, the first coil 120 and the magnet 130 will have the same polarity on the corresponding surfaces. It can be configured in this way.

[0111] Alternatively, the magnet 130 is divided into two or four sections by a plane perpendicular to the optical axis, and the first section If the surface corresponding to coil 120 is divided into two or more parts, the first coil 120 is also divided. It is also possible to divide and configure the magnet 130 into a corresponding number.

[0112] The magnet 130 can be mounted in a position corresponding to the first coil 120. For example, referring to Figure 8, the magnet 130 faces the first sensor 170 and It can also be positioned so as to face the first coil 120. This is as mentioned earlier. In one embodiment, the magnet for the first sensor 170 is not separately arranged, This is the case when the 130 is used as a magnet for the first sensor 170.

[0113] In this case, the magnet 130 is located on the first side of the housing 140, as shown in Figure 7. It can be housed and supported in 41. The shape of the magnet 130 is that of the housing 140. The shape corresponding to the first side portion 141 can be that of a roughly rectangular parallelepiped, and the first coil 12 The surface corresponding to 0 can be formed to correspond to the curvature of the corresponding surface of the first coil 120. ru.

[0114] The magnet 130 can consist of a single unit; in this embodiment, see Figure 5a. The surface facing the first coil 120 is positioned as the south pole 132, and the outer surface as the north pole 134. This is possible. However, this is not the limiting factor; conversely, it is also possible to construct it in a different way.

[0115] At least two magnets 130 can be attached, and according to the embodiment, four Two can be attached. In this case, the magnet 130 is as illustrated in Figure 5a. Furthermore, it can be roughly quadrilateral in a plane, or conversely, triangular, rhombus, etc. It is also possible to do so.

[0116] However, in the magnet 130, the surface corresponding to the first coil 120 is formed in a straight line. This is possible, but it is not limited to this, and the corresponding surface of the first coil 120 is curved In some cases, it can be provided in the shape of a curve with the corresponding curvature. If configured in this way, the The distance to the coil 120 can be maintained uniformly. In this embodiment, the housing 14 One can be attached to each of the four first side portions 141 of 0. However, This is not limited to this, and the magnet 130 and the first coil 120 can be configured according to the design. One of them may be planar and the other curved. Alternatively, the first coil 1 The opposing surfaces of 20 and magnet 130 can both be curved surfaces. In this case, the first carp The curvature of the opposing surfaces of the lu 120 and the magnet 130 can be made identical.

[0117] As illustrated in Figure 5a, if the plane of the magnet 130 is rectangular, multiple magnets One pair of T130 is positioned parallel to the second direction, and the other pair is positioned parallel to the third direction. This arrangement allows for the housing 140 for image stabilization, which will be described later. Its movement can be controlled.

[0118] On the other hand, the housing 140 can have a polygonal shape in plan view, and according to the embodiment, Figure As illustrated in Figure 6, the upper outer part of the housing 140 has a rectangular shape in plan view, As illustrated in Figures 6 and 7, the inner lower part can have an octagonal shape in the plane. Therefore, the housing 140 may include multiple sides. For example, four first sides 14 It may include 1 and four second sides 142.

[0119] The first side portion 141 corresponds to the part to which the magnet 130 is attached, and the second side portion 142 is This can correspond to the area where the support member 220, described later, is located. The first side portion 141 is multiple The second sides 142 of the number can be connected to each other and include a plane of a certain depth.

[0120] According to the embodiment, the first side portion 141 is located in an area corresponding to or greater than the area of ​​the magnet 130. It can be formed on a large scale. Referring to Figure 7, the magnet 130 is the first side portion 141 It can be fixed to the magnet mounting portion 141a formed on the inner lower end. The mounting portion 141a is formed in a recessed shape corresponding to the size of the magnet 130. The magnet 130 is positioned so that it faces at least three sides, namely both sides and the top. This is possible. The bottom surface of the magnet mounting part 141a, that is, the second coil 230 which will be described later, and An opening is formed on the opposing surface so that the bottom surface of the magnet 130 directly faces the second coil 230. It can be formed into a sea urchin.

[0121] The magnet 130 can be fixed to the magnet mounting part 141a with adhesive, This is not the only option; adhesive materials such as double-sided tape can also be used. Alternatively, instead of forming the magnet mounting portion 141a in a recessed shape as shown in Figure 7, Furthermore, a mounting hole may be formed into which a portion of the magnet 130 is exposed or inserted. .

[0122] The first side portion 141 can be positioned parallel to the side surface of the cover member 300. The first side portion 141 can also be formed to have a larger surface area than the second side portion 142. The side portion 142 can form a path through which the support member 220 passes. The upper part may include a first through hole 147. The support member 220 passes through the first through hole 147 and above It can be connected to the side elastic member 150.

[0123] Furthermore, the housing 140 may further include a second stopper 144. The upper part 144 is located within the cover member 300 shown in Figure 1, on the upper side of the body of the housing 140. This can prevent direct collisions to the side.

[0124] Furthermore, the second side portion 142 of the housing 140 has a plurality of first upper support protrusions on its upper surface. A projection 143 can be provided. The multiple first upper support projections 143 are hemispherical as illustrated. It can also have a shape, and unlike this, it can also have a cylindrical or prismatic shape, but the example The shape is not limited to the first upper support projection 143.

[0125] Furthermore, referring to Figures 6 and 7, the first recess 14 is located in the second side portion 142 of the housing 140. The reason 2a was formed is not only to form a path for the support member 220 to pass through, but also This is to secure space to fill with gel-like silicon that can act as a cushioning agent. In other words, the recess 142a can be filled with damping silicon.

[0126] Figure 12 shows the upper elastic member 150, lower elastic member 160, and first sensor 17 according to the embodiment. 0. Perspective view of the coupling of the sensor substrate 180, base 210, support member 220, and circuit board 250. The diagram is shown.

[0127] According to the embodiment, the upper elastic member 150 has at least four electrically separated members The first to fourth upper elastic members 150; including 150-1, 150-2, 150-3, and 150-4. It is possible to do so. Elastic member contact portion 184-1, 184- connected to the first sensor 170 2, 184-3, 184-4 are the first to fourth upper elastic members 150-1, 150-2, 150 -3, 150-4 can be used to connect to multiple support members 220. That is, The first upper elastic member 150-1 connected to the elastic member contact portion 184-4 is the first support member 22 It is connected to the 1st-1st and 1st-2nd support members 220-1a and 220-1b, which are 0-1, and is resilient The second upper elastic member 150-2 connected to the elastic member contact portion 184-3 is the second support member 220 The third upper elastic member 150-3, which is connected to -2 and connected to the elastic member contact portion 184-2, The third support member 220-3 is the third-first and third-second support members 220-3a, 220-3 The fourth upper elastic member 150-4, which is connected to b and to the elastic member contact portion 184-1, It can be connected to support member 220-4.

[0128] 150a of the first and third upper elastic members 150-1 and 150-3, respectively, is the first inner part The frame includes frame 151, first outer frame 152a and first frame connecting part 153, 150b of the 2nd and 4th upper elastic members 150-2 and 150-4, respectively, is the first inner frame It may include the 151, the 1st outer frame 152b, and the 1st frame connecting part 153. The first inner frame 151 is in contact with the bobbin 110 and the corresponding elastic member contact portion 184-1, 1 It can be combined with 84-2, 184-3, and 184-4. As shown in Figure 4, the second If the upper surface 112a of the protrusion 112 is flat, the first inner frame 151 is on the upper surface 112a After being placed, it can be fixed with an adhesive member. Another embodiment is shown in Figure 4. Unlike the above, if a support projection (not shown) is formed on the upper surface 112a, the first inner flare After the support projection is inserted into the second-first through-hole 151a formed in the frame 151, it is fixed by heat fusion. They can be attached or fixed with an adhesive such as epoxy.

[0129] The first outer frames 152a and 152b are connected to the housing 140 and also support It can be connected to the support member 220, and the first frame connecting portion 153 is the first inner frame 1 51 can be connected to the first-first outer frame 152a, 152b. Frame 152b has a form in which the first outer frame 152a is divided in two, but in this embodiment... It is not limited to this. That is, according to other embodiments, the first outer frame 152a is also the first -1 It can also be divided in two, similar to the outer frame 152b.

[0130] The first frame connecting portion 153 is bent at least once to form a pattern of a certain shape. It can be formed. Due to the positional change and micro-deformation of the first frame connecting portion 153, Bobi The n110 is elastically supported to move upward and / or downward in a first direction parallel to the optical axis. It is possible.

[0131] In the housing 140, the multiple first upper support projections 143 are upper projectiles as illustrated in Figure 12. The first-first outer frames 152a, 152b of the material member 150 are connected to the housing 140 and It can be fixed. According to the embodiment, the first outer frame 152a, 152b 1. A second-2 through-hole 157 is formed at a position corresponding to the upper support projection 143, and the shape is corresponding to that position. This can be done. In this case, the first upper support projection 143 and the second through hole 157 are fixed by heat fusion. It can also be fixed with adhesive materials such as epoxy. Multiple 1st to 4th upper sides In order to fix the elastic members 150-1, 150-2, 150-3, and 150-4, sufficient A number of first upper support protrusions 143 can be provided. Therefore, the first to fourth upper elastic members 1 50-1, 150-2, 150-3, 150-4 and housing 140 are incompletely connected. This can prevent that from happening.

[0132] Furthermore, the distance between the multiple first upper support protrusions 143 can be adjusted to avoid interference with surrounding parts. It can be set appropriately within the range that is possible. That is, relative to the center of the bobbin 110 Each of the first upper support protrusions 143 is arranged at regular intervals on the corner side of the housing 140 in a symmetrical shape. They can also be placed, and these intervals are not constant, but a specific temporary one passing through the center of the bobbin 110 It can also be arranged to be symmetric with respect to the imaginary line.

[0133] After the first inner frame 151 is coupled to the bobbin 110 and the first-1 outer frames 152a, 152b are coupled to the housing 140, the elastic member contact portions 18 4-1, 184-2, 184-3, 184-4 of the sensor substrate 180 and the first inner frame 151 are electrically connected by soldering or the like to perform the electrical connections CP11, CP12, CP13, CP14 as shown in FIG. 10. Thereby, among the four pins P11, P12, P21, P22 of the first sensor 170, two pins P11, P12 are applied with electric power of different polarities, and a feedback signal can be output from the remaining two pins P21, P22 among the four pins of the first sensor 170. When electric power of different polarities is applied and a feedback signal of different polarities can be output in this way, the upper elastic member 150 can be divided into four parts as the first to fourth upper elastic members 15 0-1, 150-2, 150-3, 150-4. The first to fourth upper elastic members 150-1, 150-2, 150-3, 150-4 are connected to the circuit board 250 via the support member

[0134] 220. That is, the first upper elastic member 150-1 is connected to the circuit board 250 via at least one of the first-1 or first-2 support members 220-1a, 220-1b, the second upper elastic member 150-2 is connected to the circuit board 250 via the second support member 220-2, the third upper elastic member 150-3 is connected to the circuit board 250 via at least one of the third-1 or third-2 support members 220-3a, 220-3b, the fourth upper elastic member 150-4 is connected to the circuit board 250 via the fourth support member 220-4. Connected, Therefore, the first sensor 170 can be connected to the support member 220 and the upper elastic member. Power is supplied from the circuit board 250 via 150 or output from itself. The feedback signal can also be provided to the circuit board 250.

[0135] On the other hand, the lower elastic member 160 consists of first and second lower elastic members 16 that are electrically isolated from each other. It may include 0-1 and 160-2. The first coil 120 is the first and second lower elastic members. Multiple support members 220 can be connected via 160-1 and 160-2.

[0136] Each of the first and second lower elastic members 160-1 and 160-2 has at least one 2 inner frames 161-1, 161-2, and at least one second outer frame 162-1 , 162-2 and at least one second frame connecting part 163-1, 163-2, 163 It can include -3 and 163-4.

[0137] The second inner frames 161-1 and 161-2 can be coupled to the bobbin 110. 2. Outer frame 162-2, 162-2 can be coupled to housing 140. The second-first frame connecting section 163-1 connects the second inner frame 161-1 and the second outer frame 1 62-1 is connected, and the second-second frame connecting section 163-2 consists of two second outer frames 162 -1 and 162-2 can be connected, and the second-to-third frame connecting section 163-3 is the second inner Frame 161-2 and the second outer frame 162-2 can be connected.

[0138] Furthermore, the first lower elastic member 160-1 further includes the first coil frame 164-1, The lower elastic member 160-2 may further include a second coil frame 164-2. Referring to Figure 11, the first and second coil frames 164-1 and 164-2 are the first coil The first coil 1 is located on the upper surface at a position close to the pair of winding protrusions 119 on which the wires at both ends of 120 are wound. The ends of 20 are electrically connected by conductive connecting members such as solder, and the first and second lower sides Elastic members 160-1 and 160-2 receive power of opposite polarity and transmit it to the first coil 120. This is possible. In this way, power of opposite polarities is received and transmitted to the first coil 120. To enable this, the lower elastic member 160 is the first and second lower elastic members 160-1, 1 It can be divided into two parts, 60-2.

[0139] Furthermore, the first and second lower elastic members 160-1 and 160-2 are each the second to fourth frames. The second to fourth frame connecting section 163-4 may further include the second to fourth frame connecting section 163-4. The first and second coil frames 164-1 and 164-2 are connected to the second inner frame 161-2. It is possible.

[0140] The aforementioned 2-1 to 2-4 frame connecting parts 163-1, 163-2, 163-3, 1 At least one of 63-4 is folded at least once to form a pattern of a certain shape. This can be achieved. In particular, the 2-1 and 2-3 frame connecting parts 163-1, 163- Due to the positional change and fine deformation of 3, the bobbin 110 rises in a first direction parallel to the optical axis and / Alternatively, the downward movement can be supported elastically.

[0141] According to one embodiment, as shown in the figure, the first and second lower elastic members 160-1 and 160-2 Each of these may further include a bent portion 165. The bent portion 165 is the second-second frame It is bent in the first direction from the connecting portion 163-2 toward the upper elastic member 150. The upper elastic member 160 can further include fifth and sixth upper elastic members 150-5 and 15 0-6 that are electrically separated from each other. Each of the fifth and sixth upper elastic members 150-5 and 150-6 can include a connecting frame 154 and first to second outer frames 155. The connecting frame 154 is connected to the bent portion 165 and can extend in the first direction. The first to second outer frame 155 is bent from the connecting frame 154 in a direction orthogonal to the first direction and coupled to the housing 155 and can be connected to the support member 220. That is, the fifth upper elastic member 150-5 can be connected to the fifth support member 220-5, and the sixth upper elastic member 150-6 can be connected to the sixth support member 220-6. At this time, each of the bent portions 165 of the first and second lower elastic members 160-1 and 160-2 and the connecting frame 154 and the first to second outer frames 155 of the fifth and sixth upper elastic members 150-5 and 150-6 can be integrally formed. Thus, each of the first and second lower elastic members 160-1 and 16 0-2 and each of the fifth and sixth upper elastic members 150-5 and 150-6 can have bent portions 165 and 154 in the first direction.

[0142] According to another embodiment, the connecting frame 154 of each of the fifth and sixth upper elastic members 150-5 and 150-6 can be bent in the first direction from the first to second outer frame 155 to the second to second frame connecting portion 163-2 in the first direction, unlike that shown in FIG. 12. In this case, each of the first and second lower elastic members 160-1 and 160-2 shown in FIG. 12 Each of the bent portions 165 can be omitted. In this way, the first and second lower elastic members Each of 160-1 and 160-2 does not have a bend in the first direction, and the fifth and sixth upper Each of the side elastic members 150-5 and 150-6 can have a bent portion 154 in the first direction. Cut.

[0143] Furthermore, according to other embodiments, the first and second lower elastic members 160-1 and 160-2 Unlike the one shown in Figure 12, the bent portion 165 is the second-to-second frame connecting portion 163 -2 can be folded in the first direction from the first-second outer frame 155. In this case, the fifth and sixth upper elastic members 150-5 and 150-6 shown in Figure 12 are connected The connecting frame 154 can be omitted. In this way, the first and second lower elastic members 16 Each of 0-1 and 160-2 has a bent portion 165 in the first direction, while the fifth and sixth upper sides Each of the elastic members 150-5 and 150-6 does not have a bent portion in the first direction. Cut.

[0144] Furthermore, according to another embodiment, unlike the one shown in Figure 12, the housing 140 is inserted Further metal pieces (not shown) that are to be inserted or attached may be provided. In this case, the first-second outer frame 155 and the second-second frame connecting part 163-2 are made of metal. They can be connected to each other by a piece. In this case, the bent portion 165 and shown in Figure 12 The connecting frame 154 can be omitted. Thus, the first and second lower elastic members 1 60-1, 160-2 respectively and the 5th and 6th upper elastic members 150-5, 150-6 Each of them may also not have a bent portion in the first direction.

[0145] As mentioned above, at least one of the upper elastic member or the lower elastic member is folded in the first direction. It can also have a bent shape, and both the upper and lower elastic members can be bent in the first direction. It may also not have a curved shape.

[0146] On the other hand, the first-second outer frame 155 is similar to the first-first outer frame 152b, -2 through holes 157 may be further included.

[0147] According to one embodiment, the first to sixth upper elastic members 150-1, 150-2, 150-3, 1 The first outer frames 152a and 152b of 50-4, 150-5, and 150-6 are diagonal. They can be positioned to correspond to the direction, and the first and second outer frames 155 are in the diagonal direction They can be arranged to match. That is, the first upper elastic member 150-1 1. Outer frame 152a and 1-1 outer frame 152a of the 3rd upper elastic member 150-3 They can be arranged so as to match diagonally. Also, the second upper elastic member 150- The first outer frame 152b of 2 and the first outer frame of the fourth upper elastic member 150-4 The 152b can be positioned to correspond diagonally. Also, the fifth upper elastic part The first and second outer frames 155 of material 150-5 and the first and second outer frames of the sixth upper elastic member 150-6 The side frames 155 can be arranged so that they align diagonally.

[0148] Alternatively, according to other embodiments, although not shown in the figures, the first to sixth upper elastic members 1 50-1, 150-2, 150-3, 150-4, 150-5, 150-6, 1st-1 outside Instead of the side frames 152a and 152b being positioned to align diagonally, as shown in Figure 12 It can be placed at any two of the four corners shown, and the 1st-2nd outer part Instead of being positioned diagonally, the frame 155 is positioned in the other two corners of the four corners. They can also be placed at the corners.

[0149] On the other hand, the first and second lower elastic members 160-1 and 160-2 are connected to a plurality of support members 220. The circuit board 250 is connected via the fifth and sixth upper elastic members 150-5 and 150-6. It can be seen that the power is received and supplied to the first coil 120. That is, the first lower elastic member 160-1 is connected to the circuit board via the sixth upper elastic member 150-6 and the sixth support member 220-6. Connected to 250, the second lower elastic member 160-2 is connected to the fifth upper elastic member 150-5 and the fifth It can be connected to the circuit board 250 via the support member 220-5.

[0150] Referring to Figure 11, multiple first lower support protrusions 117 are provided on the lower surface of the bobbin 110. The second inner frames 161-1 and 161-2 of the lower elastic member 160 are connected to the bobbin 110. It can be joined and fixed. Multiple second lower support protrusions 14 are located on the lower surface of the housing 140. 5 is provided, and the second outer frames 162-1, 162-2 of the lower elastic member 160 and the housing The ring 140 can be joined and fixed.

[0151] In this case, the number of second lower support protrusions 145 is greater than the number of first lower support protrusions 117. This is possible. This is because the length of the second frame connecting portion 163-2 of the lower elastic member 160 is This is because it is longer than the length of the first frame connecting section 163-1.

[0152] As mentioned above, the lower elastic member 160 has a structure that is divided into two parts, so the first upper support Similar to the number of supporting projections 143, the number of first and second lower support projections 117 and 145 is also sufficiently large. By providing this, the lifting phenomenon that may occur when the lower elastic member 160 separates is prevented. It is possible.

[0153] On the other hand, if the lower elastic member 160 is not a divided structure but consists of a single body, the first and The second lower support protrusions 117 and 145 must be provided in a similar number to the first upper support protrusions 143. There is none. This is because even with only a few first and second lower support protrusions 117, 145, the lower elastic part This is because material 160 can be stably joined to housing 140.

[0154] However, as in the embodiment, the lower elastic members 160 are not electrically connected to each other. When separated into the first and second lower elastic members 160-1 and 160-2, the separated first and To fix the second lower elastic members 160-1 and 160-2, a sufficient number of first and second lower Support protrusions 117 and 145 can be provided. Therefore, the first and second lower elastic members 16 This prevents incomplete coupling between 0-1, 160-2 and housing 140. .

[0155] Next, referring to Figure 11, the first and second lower support projections 117 and 145 are the first upper support Like projection 143, it can also have a hemispherical shape, but unlike this, it can be cylindrical or prismatic. It can also have the shape of the first and second lower support protrusions 117, 145. It is not limited to that.

[0156] Referring to Figure 12, according to the embodiment, the first and second lower elastic members 160-1, 160 -1 In each of the second inner frames 161-1 and 161-2, the first lower support projection 1 A third through-hole 161a of a corresponding shape can be formed at a position corresponding to 17. The first lower support projection 117 and the third through hole 161a can be fixed by heat fusion, epoxy It can also be fixed with adhesive materials such as those listed above.

[0157] Furthermore, the second outer frame of the first and second lower elastic members 160-1 and 160-2 respectively In parts 162-1 and 162-2, there is a fourth through-hole at a position corresponding to the second lower support projection 145. 162a can be formed. In this case, the second lower support projection 145 and the fourth through hole 162 'a' can be fixed by heat fusion, or it can be fixed with an adhesive material such as epoxy. .

[0158] Furthermore, the distance between the multiple first and second lower support protrusions 117 and 145 is such that they do not interfere with surrounding parts. It can be set appropriately within the range that can be avoided. That is, bobbin 110 The first and second lower support protrusions 117 and 145 are symmetrical with respect to the center for a certain period of time. They can also be placed at intervals.

[0159] The upper elastic member 150 and the lower elastic member 160 mentioned above are each connected to the leaf spring. While this is possible, the examples are not limited to the materials of the upper and lower elastic members 150 and 160. .

[0160] On the other hand, the bobbin 110, housing 140, and upper and lower elastic members 150, 160 It is assembled by bonding work using heat fusion and / or adhesives, etc. This can be done. In this case, following the assembly order, the parts are fixed by heat fusion and then bonded with adhesive. I can complete my regular tasks.

[0161] For example, the first bobbin 110 and the second inner frame 161-1 of the lower elastic member 160, Assemble 161-2, and secondly, the housing 140 and the second outer frame of the lower elastic member 160 When assembling parts 162-1 and 162-2, the first lower support projection 117 of the bobbin 110 and the third through hole 161a and housing 140 which are connected to the first lower support projection 117 A second lower support projection 145 and a fourth through hole 162a connected to this second lower support projection 145 It can be fixed by heat fusion. Third, the first inner frame of the upper elastic member 150 If 151 is assembled first, the elastic member contact parts 184-1, 184 of the sensor board 180 -2, 184-3, 184-4 and the 1st to 4th upper elastic members 150-1, 150-2, 15 The first inner frames 151 of 0-3 and 150-4 can be fixed by heat fusion. Then, the fourth and final one, the housing 140 and the upper elastic member 150, the first and 1-2 When fixing the outer frames 152a, 152b, and 155, the housing 140 1. The second through-hole 157, which is connected to the upper support projection 143, is used for applying adhesives such as epoxy. Therefore, bonding can be performed. However, this assembly order can be changed. Yes. That is, the first three assembly steps involve heat fusion, and the last fourth step Bonding should be performed when the floor is fixed in place. Therefore, deformation such as distortion should be avoided during heat fusion. It can be accompanied by bonding in the final stage, but this can be compensated for.

[0162] In the embodiment described above, among the four electrically isolated upper elastic members 150, two upper Power is supplied to the first sensor 170 via the side elastic member 150, and from the first sensor 170 The output feedback signal is transmitted through two other electrically isolated upper elastic members 150. The signal is transmitted to the circuit board 250 and through two electrically isolated lower elastic members 160. One coil 120 can be powered. However, the embodiments are not limited to this.

[0163] In other words, according to other embodiments, the roles of the multiple upper elastic members 150 and the multiple lower elastic members The roles of material 160 can be interchanged with each other. That is, four electrically separated components. Within the two upper elastic members 150, the first coil 120 is powered via the two upper elastic members 150. Two of the four electrically isolated lower elastic members, 160, are supplied with force. Power is supplied to the first sensor 170 via this, and the feed output from the first sensor 170 The back signal is electrically isolated from the circuit board 250 via two other lower elastic members 160. It can also be transmitted to [the other party]. This is clear from the aforementioned diagram, even if it is not illustrated. That is the case.

[0164] The following describes the case where the roles of the upper elastic member 150 and the lower elastic member 160 are swapped. The upper and lower elastic members 150 and 160 are briefly examined as follows. In this case, the lower The side elastic member is divided into a form such as the upper elastic member 150 shown in Figure 10, and the upper elastic member It is divided into a form such as the lower elastic member 160 shown in Figure 11, and the sensor substrate 180 is The sensor substrate 180 is coupled to the bin 110, and the elastic member contact portion of the sensor substrate 180 faces the upper elastic member 150. It protrudes not in the direction of the lower elastic member 160, and the corresponding lower elastic member 16 It can be combined with 0.

[0165] The lower elastic member includes at least four first to fourth lower elastic members that are separated from each other, Sensor 170 is connected to a plurality of support members 220 via first to fourth lower elastic members. It is possible.

[0166] Each of the first to fourth lower elastic members is connected to the first inner frame and the bobbin 110. , coupled to the housing 140 and connected to the support member 220, the first-first outer frame A frame, and a first frame connecting part that connects the first inner frame and the first-1 outer frame. It can include...

[0167] The upper elastic member includes at least two first and second upper elastic members that are separated from each other. The first coil 120 is connected to a plurality of support members 220 via first and second upper elastic members. It is possible.

[0168] Each of the first and second upper elastic members is coupled to the bobbin 110 with at least one A second inner frame and at least one second outer frame coupled to the housing 140 This connects at least one second inner frame and at least one second outer frame. It may include a 2-1 frame connecting section.

[0169] At least one second outer frame includes a plurality of second outer frames, and the first and second Each of the upper elastic members is a 2-2 frame connecting portion that connects multiple second outer frames. It can further include

[0170] At least four lower elastic members further separate the fifth and sixth lower elastic members from each other. The fifth and sixth lower elastic members are formed in a direction perpendicular to the first direction. The first and second outer frames are connected to the housing 140 and also connected to the support member 220. It can include mu.

[0171] Each of the first and second upper elastic members extends from the second-2 frame connecting portion to the lower elastic member. It may further include a bent portion folded in the first direction toward the fifth and sixth lower sides Each of the elastic members further connects the bending portion and the first and second outer frames with a connecting frame. It can include.

[0172] Alternatively, each of the fifth and sixth lower elastic members extends from the first-second outer frame to the second-second outer frame. The system may further include a connecting frame that is bent in the first direction up to the frame connection point. In this case, the bent portion, connecting frame, and 1-2 outer frame can be formed integrally. Cut.

[0173] Alternatively, each of the first and second upper elastic members extends from the second-2 frame connecting portion to the first- 2. It may further include a bent portion that is folded in the first direction up to the outer frame.

[0174] Alternatively, the lens drive device may further insert or attach a metal piece to the housing 140. The first-to-second outer frame and the second-to-third frame connecting portion are connected by a metal piece. It is possible.

[0175] Each of the first and second upper elastic members is located at one end of the wires at both ends of the first coil 120. A coil frame connected to a wire, and a coil frame and at least one second inner frame It may further include a second-to-third frame connecting section that connects them.

[0176] On the other hand, referring to Figures 3, 6, 7, 10, and 11, the side of the housing 140 Multiple third stoppers 149 can be provided. The third stoppers 149 are 1. When the lens drive unit moves in the second and third directions, the cover member 300 and the housing 1 This is to prevent collisions with the fuselage 40, and in the event of an external impact, the side of the housing 140 This prevents the surface from directly colliding with the inner surface of the cover member 300. The third stoppers 149 are located on each of the outer surfaces of the housing 140, with two at regular intervals. Although they are arranged as described, the embodiments are not limited to the position and number of the third stopper 149.

[0177] Although not shown in the diagram, a fourth stopper is located on the underside of the housing 140. The fourth stopper can be provided protruding from the lower surface of the housing 140. The fourth stopper is located on the bottom surface of the housing 140, which is connected to the base 210 and / or circuit base described later. This prevents collision with plate 250. Also, the fourth stopper is in its initial state and During normal operation, the base 210 and / or circuit board 250 are separated by a certain distance. This configuration allows the state to be maintained. With this configuration, the housing 140 has a base on the lower side. It is positioned away from S210 and away from the cover member 300 on the upper side, so as not to interfere with the optical axis direction. The height can be maintained. Therefore, the housing 140 is in a plane perpendicular to the optical axis. It is also possible to perform shifting operations in the second and third directions, which are the forward, backward, left, and right directions.

[0178] The first lens drive unit according to this embodiment uses the first sensor 170 and the bobbin 110 The position of the bobbin 1 is detected in the first direction of the z-axis, which is the optical axis direction, or in a direction parallel to the first direction. It can precisely control the movement of 10 units. This is based on the position detected by the first sensor 170. This can be achieved by feeding the data back to the outside via the circuit board 250. Cut.

[0179] On the other hand, according to one embodiment, the bobbin 110 is positioned in a first direction which is the optical axis direction or in a first direction which is horizontal. To move it in the direction of the first coil 120, a magnet 130 (hereinafter referred to as 'AF') is placed opposite the first coil 120. Outside the 'detection magnet', a magnet (hereinafter referred to as 'detection magnet') facing the first sensor 170. A separate ') (not shown) can be placed. In this case, the AF magnet 130 The interaction between the first coil 120 and the detection magnet may be interfered with. This is because a magnetic field is generated by the detection magnet. Therefore, a separate device is placed. To prevent the detection magnet from interacting with the AF magnet 130, or This causes interaction with the AF magnet 130, but the bobbin 110 tilts (tilti To prevent this from happening, the first sensor 170 is positioned opposite a separate detection magnet. It can also be placed in this position. In this case, the first sensor 170 is placed on the bobbin 110 and coupled. Alternatively, the detection magnet may be placed, coupled, or mounted in the housing 140. This is possible. Alternatively, the first sensor 170 is placed, coupled, or mounted in the housing 140. The detection magnet can then be placed, coupled, or mounted on the bobbin 110.

[0180] According to other embodiments, instead of placing a separate detection magnet, the bobbin 110 is illuminated. To move the AF magnet in the first axial direction or in a direction parallel to the first direction, It can also be used as a detection magnet. For example, the AF magnet 130 can be used as a detection magnet. To also perform the function of a magnet, the first sensor 170 is not placed in the housing 140. To place, connect, or mount on the bobbin 110 so that it moves together with the bobbin 110. Therefore, when an AF magnet and a detection magnet coexist, the two magnets The problems caused by the interaction of magnets can be fundamentally resolved. For example, AF magnets A magnetic field compensating metal (not shown) to minimize the interaction between the magnet and the detection magnet. This eliminates the need for ).

[0181] On the other hand, the first lens drive unit is located outside the first sensor 170. It may also include various devices to improve the autofocus function. In this case, the device receives power via its placement location or the circuit board 250, and the circuit The method and process for supplying the feedback signal to the substrate 250 are the same as those for the first sensor 170. It is possible.

[0182] On the other hand, referring again to Figure 2, the second lens drive unit is for the image stabilization as described above. A lens drive unit comprising a first lens drive unit, a base 210, and a plurality of support members. Includes 220, a second coil 230, a second sensor 240, and a circuit board 250. .

[0183] The first lens drive unit can have the configuration described above, but the configuration described above It can also be replaced with an optical system that incorporates other forms of autofocus functionality. In other words, a voice coil motor type autofocus actuator is used. Instead, use a single-lens moving actuator or a variable refractive index actuator. It can also consist of an optical module to be used. That is, the first lens drive unit is Any optical actuator that can perform a focusing function would work. It can also be used. However, the magnet 130 is located in the position corresponding to the second coil 230, which will be described later. It needs to be installed.

[0184] Figure 13 shows an exploded perspective view of the base 210, the second coil 230, and the circuit board 250.

[0185] First, the base 210 of the second lens drive unit is as illustrated in Figures 2 and 13, It can have a roughly quadrilateral shape in plane. The cover member 300 is bonded to the base 210. A stepped portion 211, as illustrated in Figure 13, is formed so that adhesive can be applied when fixing it in place. This can be done. In this case, the stepped portion 211 guides the cover member 300 which is connected to the upper side. It can be done so that the ends of the cover member 300 are joined in surface contact. The stepped portion 211 and the end of the cover member 300 shall be bonded and sealed with adhesive or the like. It is possible.

[0186] The base 210 can be positioned at a constant distance from the first lens drive unit. The surface of the base 210 facing the portion where the terminals 251 of the circuit board 250 are formed. A support portion 255 of a corresponding size can be formed thereon. The support portion 255 is on the base 2 The outer surface of 10 is formed to have a constant cross-section without any stepped portion 211, and the terminal 251 is formed thereon. The terminal portion 253 can be supported.

[0187] The corners of the base 210 have second recesses 212. The corners of the cover member 300 are protruding. If this is the case, the protruding portion of the cover member 300 is fastened to the base 210 at the second recess 212. It is possible.

[0188] Furthermore, the upper surface of the base 210 has a second mounting recess 215- in which the second sensor 240 can be positioned. 1, 215-2 can be provided. According to the embodiment, the second mounting recess 215-1, There are two 215-2s in total, and the second sensor 240 is mounted in the second mounting recess 215-1, 2 By being positioned at 15-2 respectively, the housing 140 moves in the second and third directions It is possible to sense the degree of movement. For this purpose, the second mounting recesses 215-1 and 215-2 The angle formed by the imaginary line connecting the centers of the base 210 is 90°, and the two second mounting recesses are formed accordingly. Sections 215-1 and 215-2 can be arranged.

[0189] An inclined surface (not shown) is formed on at least one surface of the second mounting recesses 215-1 and 215-2. It is also possible to inject epoxy more smoothly for the assembly of the second sensor 240. It can be configured in such a way. In addition, separate parts can be added to the second mounting recesses 215-1 and 215-2. It is possible to do not inject epoxy or similar substances, but epoxy or similar substances can be injected to the second sensor 240 It can also be fixed in place. The positions of the second mounting recesses 215-1 and 215-2 are the second coil 23 It can be positioned in the center or near the center of 0. Or, in the center of the second coil 230. The center of the second sensor 240 can also be aligned with this. According to the embodiment, the second mounting recess Sections 215-1 and 215-2 can be provided on the sides of the base 210.

[0190] A slot is formed in the cover member 300 at a position corresponding to the stepped portion 211, and this slot Adhesives and the like can be injected through the nozzle. In this case, the adhesive injected has a viscosity. The adhesive, which is set low and injected through the slot, is applied to the stepped portion 211 and the cover member 300. It can penetrate the surface contact position at the end. In this way, the adhesive member applied to the slot This is the gap between the opposing surfaces of the cover member 300 and the base 210 through the slot. The structure satisfies the requirements and allows the cover member 300 to connect with the base 210 and seal. It can be done.

[0191] Furthermore, a mounting section (not shown) for attaching a filter is formed on the lower surface of the base 210. It can also be done. Such filters can be infrared blocking filters. However, this is not limited to this, and there is a separate sensor holder at the bottom of the base 210. A filter can also be placed there. Also, as will be described later, on the bottom surface of the base 210 The sensor board on which the image sensor is mounted is combined to form a camera module. It's also possible.

[0192] On the other hand, the multiple support members 220 are each positioned on the second side portion 142 of the housing 140. This is possible. For example, as mentioned above, the housing 140 has a polygon in a planar view. In this case, the number of second side portions 142 of the housing 140 can be multiple. If the inner lower part of 140 is octagonal at the base, the multiple support members 220 are in the eight sides They can be arranged on the second side portion 142. For example, each of the four second side portions 142 Two support members 220 are arranged, and a total of eight support members 220 are provided. Cut.

[0193] Alternatively, in the housing 140, two of the four second side portions 142 Each of them has only one support member 220, and the remaining two second side portions 142 have only one support member 220. Two support members 220 are placed on each, so that a total of six support members 220 are provided. It's also possible.

[0194] As mentioned above, the support member 220 is required by the first sensor 170 and the first coil 120. It forms a path for transmitting power, and the feedback signal output from the first sensor 170 A path can be formed to supply the circuit board 250.

[0195] Furthermore, the support member 220 is such that the housing 140 is second in the first lens drive unit. And since it performs the role of returning to its original position after moving in the third direction, the same number in the diagonal direction When the support member 220 is in place, the balance of the elastic modulus (K) can be maintained. The support member 220 is a second and / or third plane in which the housing 140 is perpendicular to the optical axis. When moving in that direction, the housing 140 moves in a fine manner in the direction of movement or in the longitudinal direction of the support member 220. It can be elastically deformed. Here, the longitudinal direction refers to the upper and lower ends of each wire of the support member 220. The ends can be connected in a certain direction. Then the housing 140 is in a direction parallel to the optical axis. In the first direction, there is virtually no change in position, and the second and third directions are planes substantially perpendicular to the optical axis. Because it can move in the direction, the accuracy of image stabilization can be improved. This is the support member. This utilizes the characteristic that 220 can extend in the longitudinal direction.

[0196] For example, as illustrated in Figure 12, four first to fourth support members 220-1, 220-2 , 220-3, 220-4 are four second side parts 14 of the eight side parts of housing 140 They are individually placed in pairs, with the housing 140 at a certain distance from the base 210. It can be supported at a distance.

[0197] The first to fourth support members 220-1, 220-2, 220-3, and 220-4 according to the example. Each is positioned on the second side portion 142 of the housing 140 and is symmetrical to the others. It can be attached in this way, however, this is not limited to this. That is, The shape and number of the multiple support members 220 are in directions perpendicular to the first direction, for example, the second and third directions. It can be determined so that they are symmetrical with respect to each other. When considering the elastic modulus mentioned above, As mentioned above, the number of support members 220 can be eight.

[0198] In the example described above, the support member 220 has a suspension wire without a fixed pattern. This has been embodied in this form, but the examples are not limited to this. That is, according to other examples, The holding member 200 can also be formed in the shape of a plate with an elastically deformable portion (not shown).

[0199] On the other hand, referring to Figure 13, the second coil 230 has a fifth hole that penetrates the corner of the circuit member 231. It may include a hole 230a. The support member 220 passes through the fifth through hole 230a to the circuit board. It can be connected to 250. Alternatively, if the second coil 230 is in the form of an FP coil. In addition, OIS (Optical Image Stabilizer) is applied to a portion of the FP coil. A coil 232 can be formed or arranged in the second coil 230. In the portion where the fifth through-hole 230a is formed, the fifth through-hole 230a is not formed, and in this portion a support part Material 220 can also be electrically soldered.

[0200] The second coil 230 is positioned to face the magnet 130 which is fixed to the housing 140. It can be positioned as follows. For example, the second coil 230 is located outside the magnet 130. It can be positioned as follows: Alternatively, the second coil 230 can be positioned below the magnet 130. It can be installed at a fixed distance apart.

[0201] According to the embodiment, as illustrated in Figure 13, the second coil 230 is located on the circuit board 250. A total of four can be attached to the edge, but this is not limited to the second edge. It is also possible to install only two, such as one for the forward direction and one for the third direction, or four or more. It can also be attached. In this embodiment, the circuit board 250 has the shape of the second coil 230. A circuit pattern is formed in this manner, and a separate second coil 230 is placed on top of the circuit board 250. It is also possible to place the second coil 230 on the circuit board 250, but it is not limited to this. Instead of forming a circuit in that shape, only a separate second coil 230 is placed on top of the circuit board 250. Alternatively, the wire can be wound in a donut shape to form the second coil 230. Alternatively, a second coil 230 is formed in an FP coil configuration and electrically connected to the circuit board 250. It is also possible to construct it in this way.

[0202] The circuit component 231, including the second coil 230, is located on a circuit board positioned above the base 210. It can be mounted on the top surface of 250. However, this is not limited to the first The two coils 230 can be placed in close contact with the base 210, or they can be placed at a certain distance apart. It is also possible to form it on a separate substrate and then stack and connect this substrate to the circuit board 250. It can also be done this way.

[0203] As mentioned above, the magnets 130 and the second coil 23 are arranged to face each other. The interaction of 0 causes the housing 140 to move in the second and / or third directions to stabilize the image. This can be accomplished. For this purpose, the first to fourth support members 220 mentioned above are housing The base 140 is supported so as to be movable in second and third directions perpendicular to the first direction relative to the base 210. It is possible.

[0204] On the other hand, the second sensor 240 is directed towards the base 210 in the second and third directions perpendicular to the optical axis. The displacement of the first lens drive unit can be detected. For this purpose, the second sensor 240 is positioned on the center side of the second coil 230, with the circuit board 250 in between, and housing 1 It can detect 40 movements. That is, the second sensor 240 is connected to the second coil 23 It is not directly connected to 0, and the second coil 230 is located on the upper surface of the circuit board 250 with reference to it. A second sensor 240 can be attached to the bottom surface. According to the embodiment, The sensor 240, the second coil 230, and the magnet 130 can be arranged coaxially. Cut.

[0205] The second sensor 240 can consist of a Hall sensor that can sense changes in magnetic force. Any sensor capable of doing so can be used. The second sensor 240 is shown in Figure As shown in 13, there are a total of two on the side of the base 210 which is located on the underside of the circuit board 250. A second sensor 240 can be mounted, and the mounted second sensor 240 is formed on the base 210. It can be inserted and positioned into the second mounting recesses 215-1 and 215-2.

[0206] The circuit board 250 includes sixth through holes 250a1 and 250a2 through which the support member 220 can pass. The support member 220 is located in the sixth through-holes 250a1 and 250a2 of the circuit board 250. Through this, the corresponding circuit pattern that can be placed on the bottom surface of the circuit board 250 is soldered or otherwise attached. They can be electrically connected.

[0207] The circuit board 250 may further include a seventh through-hole 250b on the second upper part of the base 210. The side support projection 217 and the seventh through-hole 250b are joined and fixed by heat fusion, as shown in Figure 12. It can be fixed in place, or secured with an adhesive such as epoxy.

[0208] The circuit board 250 may further include a number of terminals 251. A bent terminal portion 253 can be formed. According to the embodiment, the circuit board 250 At least one terminal 251 is attached to one of the bent terminal portions 253. It is possible.

[0209] According to the embodiment, external power is supplied via a plurality of terminals 251 attached to the terminal portion 253. The receivers are connected to the first and second coils 120, 230, and the first and second sensors 170, 240. It can also supply power and output the feedback signal from the first sensor 170. It can also output to the terminal section. Terminals formed on terminal section 253 to which terminal 251 is attached. The number can be increased or decreased depending on the type of component that needs to be controlled.

[0210] According to the embodiment, the circuit board 250 may be made of an FPCB, but is not limited to this. Rather than that, the terminal configuration of the circuit board 250 and other elements are applied to the surface of the base 210 using a surface electrode method. It is also possible to form them directly using methods such as [mention specific methods here].

[0211] As mentioned above, the circuit board 250 is necessary for the first coil 120 and the first sensor 170. It supplies power (or current) and receives a feedback signal from the first sensor 170. This allows the displacement of the bobbin 110 to be adjusted.

[0212] On the other hand, the lens drive device 100 according to the above embodiment can be used in a variety of fields, such as camera mods. It can be attached to a module and used. For example, a camera module can be used in a mobile phone. Alternatively, it can be applied to mobile devices such as wireless phones, and notebook PCs. A wide variety of multimedia devices such as camera phones, PDAs, smartphones, and toys. In the field of video, and by extension, image input devices such as surveillance cameras and videotape recorders. This can be applied to things like that.

[0213] The camera module according to this embodiment includes a lens barrel coupled to a bobbin 110, and an image sensor. The system may include a sensor (not shown), a circuit board 250, and an optical system.

[0214] The lens barrel is as described above, and the circuit board 250 has the image sensor mounted on it. This part, along with the rest, can form the bottom surface of the camera module.

[0215] Furthermore, the optical system includes at least one lens that transmits an image to the image sensor. This is possible. In this case, the optical system is equipped with autofocus and image stabilization functions. An actuator module can be installed. The actuator module that performs the cusing function can be configured in various ways, and voice Coil unit motors are commonly used. The lens drive device according to the above embodiment is An actuator module that performs both autofocus and image stabilization functions. It can fulfill the role of a leader.

[0216] Additionally, the camera module has an infrared (IR) blocking filter. It may further include a tar (not shown). The infrared blocking filter is an image sensor - It serves to block infrared light from entering it. In this case, the example shown in Figure 2 In the -210, an infrared shielding filter is attached to the position corresponding to the image sensor. It can be attached and connected to a holder member (not shown). S210 can support the lower side of the holder member.

[0217] A separate terminal component is attached to the base 210 for power supply to the circuit board 250. It is also possible to form the terminal integrally using surface electrodes, etc. On the other hand, the base 210 can perform the function of a sensor holder that protects the image sensor. Yes, it is possible. In this case, a projection can also be formed downward along the side of the base 210. However, this is not a necessary configuration, and although not shown in the diagram, a separate sensor holder is available. It can also be configured to be positioned at the bottom of -210 and perform its function.

[0218] In the case of the lens drive device 100 according to one embodiment having the above configuration, the magnet 13 0 is shared for the autofocus operation and image stabilization of the first and second lens drive units. It can materialize actions.

[0219] In the case of the lens drive device 100 and the camera module including it according to the above-described embodiment, The first sensor 170 is positioned, coupled, or mounted on the housing 140 or bobbin 110, A Should the F-type magnet 130 be used as a sensor magnet, or should the sensor magnet be... It can be placed separately. The AF magnet 130 can be used as a sensor magnet. Either use it, or make sure the sensor magnet does not interact with the AF magnet 130. When positioned in this way, the sensor magnet does not affect the AF magnet 130. Therefore, the bobbin 110 is not tilted, improving the accuracy of the feedback signal and the component Without increasing the number, the weight of the housing 140 can be reduced and responsiveness improved. Yes, it can. Of course, the magnet for autofocus and the magnet for image stabilization are separate. It can also be configured.

[0220] Other examples Figure 14 is a schematic side cross-sectional view of the lens driving device 400 according to another embodiment, and Figure 15 is shown in Figure 14. Figure 16 is a perspective view of an embodiment of the first elastic portion 441, and Figure 14 shows the second elastic portion 442. A perspective view of an embodiment is shown.

[0221] Referring to Figures 14 to 16, the lens drive device 400 according to the embodiment includes a movable element 410, It may include a stator 420, a first sensor 430, and an elastic unit 440. The lens driving device 400 according to the embodiment further includes a cover can 450 and a substrate (not shown). It can also include.

[0222] The cover can 450 is connected to the movable part 410, stator 420, first sensor 430, and projectile, which will be described later. The elastic member (or elastic unit) 440 is housed and mounted on the base 423, This can be used to create the appearance of the lens drive device 400.

[0223] Furthermore, the inner surface of the cover can 450 is in close contact with the side surface of the base 423, which will be described later, and the base It is mounted on the 423 to protect internal components from external impacts and prevent the penetration of external contaminants. It can also have a preventative function.

[0224] Furthermore, the Cover Can 450 is designed to protect against external radio interference caused by mobile phones, etc., as described below. It must also perform the function of protecting the components of the camera module. Therefore, the cover Can 450 can be made of a metallic material.

[0225] Such a cover can 450 is realized from the housing 422 itself, as will be described later. Alternatively, the housing 422 can be molded inward and fixed in place. In this configuration, an opening is formed on the upper side of the cover can 450, exposing the lens portion (not shown). It can be done.

[0226] The movable part 410 includes a lens part (not shown) and a bobbin 411, and a coil part 412 It can be included in these.

[0227] Here, the lens part (not shown) may be a lens barrel, but is not limited to this. This includes any holder structure that can support the lens without it being damaged. This is possible. In the examples, the case where the lens part is a lens barrel will be explained as an example. The lens unit is mounted on the upper side of the base 423, which will be described later, and corresponds to the image sensor. It is positioned in such a location. Such a lens section may include one or more lenses (not shown). can.

[0228] The bobbin 411 can be connected to the lens section to fix the lens section in place. Here, the lens The coupling method between the part and the bobbin 411 is as shown in Figure 2, and the aforementioned coupling between the bobbin 110 and the lens barrel. It can be the same as the combined method.

[0229] Furthermore, the coil section 412, which will be described later, is either wound around or mounted on the outer surface of the bobbin 411. A guide portion 411a can be formed to guide the process. The guide portion 411a is It can be formed integrally with the outer surface of the bin 411 and can be connected along the outer surface of the bobbin 411. They can be formed continuously or at predetermined intervals.

[0230] Furthermore, at least one of the upper or lower surfaces of the bobbin 411 has a base 42, which will be described later. A first elastic part 441 or a second elastic part is provided on the upper side of 3 so as to support the bobbin 411. A fastening projection can be formed to fasten at least one of the parts 442.

[0231] The coil section 412 is guided by the guide section 411a and winds onto the outer surface of the bobbin 411. It is also possible to attach the pre-wound coil section 412 to the guide section 411a. It is also possible to arrange four individual coils at 90° intervals on the outer surface of bobbin 411. It can also be done. Such a coil section 412 receives power applied from the substrate, which will be described later. An electromagnetic field can be formed by the first elastic portion 441. That is, the coil portion 41 When power is applied to 2, the magnet part 421 and the coil part 412 interact electromagnetically. It is possible.

[0232] The stator 420 supports the movable part 410, and the magnet part 421, housing 422 and -423 can be included.

[0233] The magnet section 421 is positioned so as to correspond to the outer surface of the coil section 412. It can be attached to the housing 422 with adhesive or the like, and there are four inside the housing 422 By being installed at intervals such as corners, the internal volume can be used efficiently. ru.

[0234] Alternatively, the magnet section 421 has coil sections 41 on the four sides inside the housing 422. It can also be mounted opposite to unit 2.

[0235] The magnets included in the magnet section 421 can be triangular prisms, rectangular prisms, trapezoidal prisms, etc. It can be any prism shape, and the prism shape can also include some curves. Also, magnets During the manufacturing process, a portion of the corner of the magnet can also be shaped into a curved surface.

[0236] The housing 422 is the inner surface of the cover can 450 which forms the exterior of the lens drive unit 400 and It can be formed into the corresponding shape. Also, the housing 422 and the cover can 450 They do not exist separately; the housing 422 and cover can 450 are integrally formed as a lens drive mechanism. It can also have the appearance of a 400mm unit.

[0237] In the embodiment, the housing 422 or cover can 450 is less than the upper or lower With one side open, the elastic member 440 and one end are connected to support the movable element 410. It can. Also, the housing 422 has a shape on its side or corner that corresponds to the magnet part 421. It may include a magnetic fastening hole or fastening recess formed therein. The fastening holes or recesses in the net section are similar to the magnet mounting section 141a shown in Figure 7. It can have a shape.

[0238] Furthermore, the housing 422, like the housing 140 mentioned above, is made of insulating material, and production It can be made of an injectable material, taking into consideration its properties.

[0239] Furthermore, protrusions are provided at predetermined intervals on the upper side of the housing 422, providing protection when external impact is applied. - The stopper 422a, which can absorb impact by contacting the upper side of the can 450, It can be formed. Also, the stopper 422a can be formed integrally with the housing 422. This can be done, and it can also be formed on the bobbin 411.

[0240] The base 423 supports at least one of the movable element 410 or the housing 422, A circular recess 423a is located in the center, on the lower side, so that the bins 411 can be positioned apart. A recess can be formed in the center of the recess 423a, which restricts the downward movement of the bobbin 411. A limiting projection 423b can be formed.

[0241] Such a base 423 is a sensor that protects the image sensor (not shown), which will be described later. - The holder can perform its function. In this case, it can be positioned downward along the side of the base 423. A protrusion can be formed, which blocks infrared rays (IR). A filter (not shown) can be provided for arranging.

[0242] In this case, the IR blocking filter is fitted into a through-hole formed in the center of the base 423. It can include an infrared blocking filter (IR filter) or a blue filter. It is possible to do so. Also, IR blocking filters can be made of, for example, film material or glass material. It can be made of a cover glass for protecting the imaging surface, a flat optical filter such as a cover glass Infrared-blocking coatings and other materials can also be placed on the router. In addition to 3, a separate sensor holder can be positioned at the bottom of base 423.

[0243] Furthermore, the base 423 protrudes from the upper corner and makes contact with the inner surface of the cover can 450. One or more fixing protrusions can be formed to connect to the cover. - It facilitates the fastening of the Can 450 and ensures a firm fixation after fastening. Make it so.

[0244] In other words, the stator 420 in the embodiment fixes the movable element 410 so that it is located inside. The lens unit is moved to adjust the focus of the image.

[0245] The first sensor 430 detects the movement of the movable part 410, and the magnet part 421 It can detect changes in the magnetic field and play a role in precisely controlling the actuator. For example, Therefore, the first sensor 430 performs a similar function to the first sensor 170 shown in Figure 2. It is possible.

[0246] In this embodiment, the first sensor 430 is provided on the outer surface of the bobbin 411, and the housing The first sensor 430 detects the change in the magnetic field of the magnet section 421 located at 422. The above can be provided. Therefore, in this embodiment, the magnet part 421 is connected to the stator 420. By arranging them in this way, the weight of the movable element 410 is reduced, and the driving power of the lens is reduced as a result. This allows for miniaturization of the lens drive unit 400.

[0247] Furthermore, the first sensor 430 is positioned in a recess formed on a part of the outer surface of the bobbin 411. It can be done. Also, a coil section 412 is arranged on the outer surface of the bobbin 411, and the first set Sensor 430 can be positioned inside coil section 412. First sensor 430 This is obscured by the coil section 412 and can not be seen from the outside. Also, the first section The sensor 430 can also be positioned outside the coil section 412.

[0248] As shown in the diagram, the first sensor 430 includes four terminals 431 to 434, The terminals of the first sensor 430 can be changed depending on the type of first sensor 430. For example, the four terminals 431-434 are the + electrode, - electrode, ground, and output. This is possible. Therefore, the second elastic part 442, described later, matches the number of terminals of the first sensor 430. It can consist of at least two leaf springs.

[0249] In this case, the first sensor 430 is closer to the coil part 412 than to the magnet part 421. They can be arranged in such a way, but the magnets formed by the magnets of the magnet section 421 Considering that the field strength is several hundred times greater than the strength of the electromagnetic field formed by the coil, Therefore, the influence of the coil section 412 on the movement sensing of the movable element 410 is not considered. Cut.

[0250] The elastic member 440 may include a first elastic portion 441 and a second elastic portion 442.

[0251] The first elastic section 441 has both ends connected to one side of the bobbin 411 and the stator 420, respectively. This allows power to be applied to the coil section 412 of the stator 420. The body part 442 is connected at both ends to the other side of the bobbin 411 and the stator 420, respectively. It can be electrically connected to the first sensor 430.

[0252] Here, the first elastic portion 441 and the second elastic portion 442 are located on the respective sides of the housing 422. It can also consist of separate springs placed in the section, but for production efficiency, sheet metal It can be folded and cut to form the shape of a leaf spring.

[0253] One side of the bobbin 411 and stator 420 to which the first elastic portion 441 is connected is the bobbin 411 This can mean the upper or lower side of the stator 420. Similarly, the second elastic portion 442 is The other side of the connected bobbin 411 and stator 420 is the lower side of the bobbin 411 and stator 420. Alternatively, it can mean the upper side.

[0254] For example, the first elastic part 441 is positioned above the bobbin 411, and the second elastic part 442 is positioned above the bobbin It can be positioned below n411. In this case, for example, the first elastic part 441 is the upper part of the projectile. The elastic member 150 is arranged as shown, and the second elastic part 442 is arranged as shown, the lower elastic member 160. It is possible to do so.

[0255] Alternatively, the first elastic part 441 is located below the bobbin 411, and the second elastic part 442 is located below the bobbin It can be positioned above n411. In this case, for example, the first elastic part 441 is the lower part of the projectile. The elastic member 160 is arranged as shown, and the second elastic part 442 is arranged as shown, the upper elastic member 150. It is possible to do so.

[0256] In the drawing, the first elastic part 441 is positioned below the bobbin 411, and the second elastic part 442 is positioned below the bobbin Since it is located above unit 411, the following explanation will be based on this.

[0257] Referring to Figures 15 and 16, the first elastic portion 441 and the second elastic portion 442 are respectively approximate. It has a ring shape, and the inner circumference can be approximately circular to correspond to the shape of the movable part 410. The outer perimeter is roughly rectangular so that it can be supported in the shape of the housing 422 or the base 423. It is possible.

[0258] Specifically, the first elastic portion 441 and the second elastic portion 442 are fastened to the stator 420, respectively. Outer parts 441a, 442a and fastening protrusions of the bobbin 411 that are fastened to the bobbin 411 Inner parts 441b, 442b and outer parts 441a, 4 The connecting parts 441c and 442 connect 42a and the inner parts 441b and 442b, providing elastic force. It may include c. As shown in the figure, the connecting parts 441c and 442c are the inner part 441 From one or more bent portions integrally formed between b, 442b and the outer portions 441a, 442a It is possible to become one.

[0259] The outer portion 441a of the first elastic portion 441 is between the lower end of the housing 422 and the base 423. Alternatively, it can be placed on the base 423, with the inner part 441b below the bobbin 411. It can be fastened to the surface to support the bobbin 411 and provide a return force to the bobbin 411.

[0260] Furthermore, the first elastic portion 441 is connected to the first springs 441aa and 441aa, which are arranged at a distance from each other. It may include a second spring 441bb. The power applied from the substrate described later is the first Spring 441aa and the second spring 441bb can be input or output. ru.

[0261] The first spring 441aa and the second spring 441bb are leaf springs with a symmetrical shape. It can consist of springs, and can also consist of a single leaf spring, but the power input It is preferable to have a separate leaf spring for output. Here, the first spring 441aa and the second spring 441bb are in the first direction (for example, z) in which the moving element 410 moves. A second direction (e.g., the x-axis direction) or a third direction (e.g., the y-axis direction) that is perpendicular to the axis direction. They can be symmetrical with respect to each other in the axial direction.

[0262] Furthermore, the first spring 441aa and the second spring 441bb are soldered to the circuit board. The terminal 441d is formed by bending from the respective outer parts 441a and 442a. For example, both ends of the coil portion 412 wound on the bobbin 411 are Electrical connections are provided to the inner parts 441b of the first spring 441aa and the second spring 441bb, respectively. They are connected in a specific manner, and formed in the first spring 441aa and the second spring 441bb respectively. Terminal 441d is fixed to the side of base 423 and electrically connected to the circuit board described later. This can be done. With this wiring structure, power is supplied to the coil section 412. It is possible.

[0263] On the other hand, the second elastic portion 442 is configured to match the number of terminals provided on the first sensor 430. It can consist of at least two leaf springs. In the embodiment, the first Since the sensor 430 has four terminals 431, 432, 433, and 434, The second elastic portion 442 is divided into four parts and can be provided symmetrically separated from each other. Cut.

[0264] That is, the individual leaf springs 442aa, 44 of the divided second elastic section 442 In 2bb, 442cc, and 442dd, the inner part 442b of each unit is connected to the first sensor 430. They are individually electrically connected, and each outer portion 442a is provided on the outside of the housing 422. Surface formed on a wire (not shown) or metallic member (not shown) or housing. It can be electrically connected to a substrate, as described later, by a metal surface layer or the like.

[0265] In the embodiment, the electrical connection of each component can be realized by soldering.

[0266] On the other hand, the lens driving device 400 according to the above-described embodiment is the lens driving device shown in Figures 1 and 2. Similar to the moving device 100, it can be applied to a variety of fields, such as camera modules.

[0267] For example, a camera module including a lens drive device 100, and a lens according to an embodiment. If the drive unit 400 is applied to the camera module, the camera module is not shown. However, not only the lens drive unit 400, but also the printed circuit board and image sensor, etc. It can be included in.

[0268] The printed circuit board (not shown) has an image sensor (not shown) mounted in the center of its upper side. Various elements (not shown) for driving the camera module are mounted on it. The printed circuit board also provides power to drive the lens drive device 400 according to the embodiment. To apply the current, the coil portion 41 is connected to terminals 441c and 441d of the first elastic portion 441. It is electrically connected to 2.

[0269] The image sensor (not shown) has one or more lenses (not shown) housed in the lens section. It is mounted on the upper side center of the printed circuit board so that it can be positioned along the optical axis. This is possible. Such an image sensor receives the light signal of an object that enters through the lens. It can be converted into an electrical signal.

[0270] Unless it contradicts the description of the drive unit 400 in the other embodiments described above, The description of the drive unit 100 can also be applied to the drive unit 400 according to other embodiments. It goes without saying that this is possible. Furthermore, it is not inconsistent with the description of the drive device 100 according to one embodiment. To the extent of the description, the lens drive device 400 according to other embodiments will be described. Drive device according to one embodiment Needless to say, this can also be applied to 100.

[0271] The above has been explained based on examples, but these are merely illustrative examples of the present invention. This invention is not intended to limit the scope of the present invention, and those skilled in the art will understand the essential features of this embodiment. Within the bounds of not exceeding the limits of gender, various modifications and applications not exemplified above are possible. This can be understood. For example, each component shown specifically in the examples can be modified. The differences related to such modifications and applications are set forth in the attached claims. This should be interpreted as falling within the scope of the present invention. Modes for carrying out the invention

[0272] The modes for carrying out the invention are sufficiently described in the “best mode for carrying out the invention” mentioned above. It was done. [Industrial applicability]

[0273] The lens drive device and camera module according to the embodiment are for use with a mobile phone (or mobile phone). It can also be applied to mobile devices such as notebook personal computers and cameras. Lafont, PDAs, smarts, toys, and a wide variety of other multimedia fields. This applies to image input devices such as surveillance cameras and video tape recorders. It is a technology that can be used.

Claims

1. Bass and, A bobbin is positioned on the base and is movable in a first direction parallel to the optical axis, The coil arranged in the bobbin, A magnet positioned opposite the aforementioned coil, A substrate that is movable together with the bobbin, A position sensor placed on the aforementioned substrate, It includes an upper elastic member that connects the housing and the bobbin, The upper elastic member includes first to fourth upper elastic members that are separated from each other. Each of the first to fourth upper elastic members includes an inner frame connected to the bobbin, an outer frame connected to the housing, and a frame connecting portion connecting the inner frame and the outer frame. The substrate includes first to fourth elastic member contact portions, The first to fourth elastic member contact portions are connected to the inner frames of the first to fourth upper elastic members, respectively, so as to be electrically conductive. The camera module is configured such that the position sensor is electrically connected to the first to fourth upper elastic members via the first to fourth elastic member contact portions of the substrate.

2. The bobbin further includes a plurality of lower elastic members arranged therein and electrically isolated from each other, One of the plurality of lower elastic members is connected to one of the wires at both ends of the coil, The camera module according to claim 1, wherein the other of the plurality of lower elastic members is connected to the other of the two ends of the coil.

3. The camera module according to claim 1, wherein the frame connecting portion is folded multiple times to form a pattern of a certain shape.

4. The camera module according to claim 1, further comprising a plurality of wires that elastically deform when the bobbin moves in a second direction perpendicular to the first direction.

5. The camera module according to claim 4, wherein the plurality of wires are connected to the upper elastic member.

6. The camera module according to claim 4, wherein the wire is connected to the housing.

7. When viewed from above, the substrate includes a ring-shaped body. The camera module according to claim 1, wherein the body includes an inner surface facing the optical axis and an outer surface opposite to the inner surface.

8. The camera module according to claim 7, wherein the body of the substrate is positioned higher than the coil in the first direction.

9. The camera module according to claim 7, wherein the substrate further includes a plurality of circuit patterns disposed on the body and connected to the first to fourth elastic member contact portions.

10. The camera module according to claim 9, wherein the position sensor senses the displacement of the bobbin and includes a plurality of pins each connected to the plurality of circuit patterns.

11. The aforementioned plurality of circuit patterns are A first circuit pattern connected to the voltage, The camera module according to claim 9, further comprising a second circuit pattern connected to ground.

12. The camera module according to claim 10, wherein the plurality of circuit patterns further include a third circuit pattern that is linked to the results sensed by the sensor.

13. Each of the first to fourth upper elastic members is, Outer frame and An inner frame positioned inside the outer frame, It includes a frame connecting portion that connects the inner frame and the outer frame, The camera module according to claim 1, wherein the first to fourth elastic member contact portions each contact the inner frame of the first to fourth upper elastic member.

14. Bass and, A bobbin is positioned on the base and is movable in a first direction parallel to the optical axis relative to the base, A coil arranged on the outer surface of the bobbin, A first magnet facing the aforementioned coil, The bobbin is arranged with a plurality of upper elastic members that are separated from each other, A substrate that is movable together with the bobbin and includes a plurality of elastic member contact portions that are each connected to the plurality of upper elastic members, A camera module including a position sensor disposed on the aforementioned substrate.

15. When viewed from above, the substrate includes a ring-shaped body. The body includes an inner surface facing the optical axis and an outer surface opposite to the inner surface. The camera module according to claim 14.

16. The camera module according to claim 15, wherein the body of the substrate is positioned higher than the coil in the first direction.

17. The camera module according to claim 15, wherein the substrate further includes a plurality of circuit patterns arranged on the body and connected to the plurality of elastic member contact portions.

18. The camera module according to claim 17, wherein the position sensor senses the displacement of the bobbin and includes a plurality of pins connected to the plurality of circuit patterns, respectively.

19. The aforementioned plurality of circuit patterns are A first circuit pattern connected to the voltage, The camera module according to claim 17, further comprising a second circuit pattern connected to ground.

20. The camera module according to claim 19, wherein the plurality of circuit patterns further include a third circuit pattern that is linked to the results sensed by the sensor.

21. The camera module according to claim 18, wherein the position sensor is provided with terminals.

22. The camera module according to claim 14, wherein the plurality of elastic member contact portions are arranged facing each other with respect to the optical axis.

23. Each of the above-mentioned plurality of upper elastic members is Outer frame and An inner frame positioned inside the outer frame, It includes a frame connecting portion that connects the inner frame and the outer frame, The camera module according to claim 14, wherein the plurality of elastic member contact portions each contact the inner frame of the plurality of upper elastic members.

24. The camera module according to claim 23, further comprising a housing disposed on the base and movable in a second direction perpendicular to the first direction with respect to the base.

25. The camera module according to claim 24, wherein the outer frame is positioned at the corner of the housing.

26. Including an image sensor, A camera module according to any one of claims 1 to 25.

27. A mobile device comprising a camera module according to any one of claims 1 to 26.

28. The camera module according to claim 1, wherein the housing is disposed on the base and is movable in a second direction perpendicular to the first direction with respect to the base.

Images