KR20160131368A - Lens driving unit, camera module and optical apparatus - Google Patents

Abstract

The present invention relates to a lens driving unit, a camera module, and an optical device. The lens driving unit comprises: a first driving unit; a bobbin which includes the first driving unit; a second driving unit which is faced to the first driving unit; a housing which is positioned on the outside of the bobbin, and includes the second driving unit; and a support member which is combined with the bobbin and the housing, and supports the bobbin to be moved to the housing. The bobbin includes a support unit which is formed on an outer circumference surface, and supports the first driving unit. The support unit includes a plurality of supporting bodies which are separated to each other along the outer circumference of the bobbin. The present invention secures a performance of an AF or OIS function; and prevents an oscillation phenomenon at a resonance point.

Description

[0001] The present invention relates to a lens driving unit, a camera module,

The present embodiment relates to a lens driving unit, a camera module, and an optical apparatus.

As the spread of various portable terminals is widely popularized and the wireless Internet service is commercialized, the demands of consumers related to portable terminals are diversified, and various kinds of additional devices are installed in portable terminals.

Among them, there is a camera module which photographs a subject as a photograph or a moving picture.

Recently, a camera module having an auto focus (AF) function or an optical image stabilization (OIS) function is used. On the other hand, in the camera module having the AF or OIS function mentioned above, an elastic member is required to move the lens with respect to the image sensor.

On the other hand, in the internal structure of the camera module having the conventional AF or OIS function, there is a problem that the length of the elastic member can not be sufficiently secured due to the spatial restriction. Particularly, the elastic member in the conventional camera module has a problem of oscillation at the resonance point.

In order to solve the above-mentioned problem, it is desirable to provide a lens driving unit in which the length of the elastic member is sufficiently secured. Further, it is desirable to provide a lens driving unit to which an elastic member having a wide width and a long length is applicable.

It is another object of the present invention to provide a camera module and an optical apparatus for securing the performance of the AF or OIS function using the lens driving unit and preventing the oscillation phenomenon at the resonance point.

In order to solve the above problems, a lens driving unit according to an embodiment of the present invention includes: a first movable part; A bobbin in which the first movable part is located; A second movable part positioned to face the first movable part; A housing located outside the bobbin and having a second movable part; And a support member coupled to the bobbin and the housing, the support member movably supporting the bobbin with respect to the housing, wherein the bobbin includes a support portion formed on an outer circumferential surface and supporting the first movable portion, May include a plurality of supports spaced from each other along the outer periphery of the bobbin.

A spacing space may be formed between the plurality of supports, and the support member may be located in the spacing space.

The support member may include an inner side portion coupled to the bobbin, an outer side portion coupled to the housing, and a connection portion connecting the inner side portion and the outer side portion, and the connection portion may be located in the spaced space.

Wherein the support member includes four support units located in a virtual single plane and wherein one of the four support units comprises a first inner portion coupled to the bobbin, a first outer portion coupled to the housing, And a first connection portion connecting the first inner side portion and the first outer side portion.

The first connection portion includes a plurality of bending portions formed to be bent or curved, and two or more bending portions of the plurality of bending portions may be located in the spacing space.

The plurality of spacing spaces may be provided, and at least a part of the first connecting portions may be located in two or more spacing spaces among the plurality of spacing spaces.

Wherein the plurality of supports comprises a first support, a second support positioned adjacent to the first support, and a third support positioned adjacent to the second support, And a second spacing space located between the second support and the third support, and a second spacing space located between the second support and the third support, wherein at least a portion of the first connection is spaced apart from the first spacing space And the second spacing space.

Wherein the housing includes a first housing edge portion having a side surface formed thereon and a second housing edge portion located adjacent to the first housing edge portion, the first outer side portion being closer to the first housing edge portion than the second housing edge portion, The first inner side portion may be located closer to the second housing edge portion than the first housing edge portion.

The spacing space may be spaced a distance corresponding to each of the first housing edge portion and the second housing edge portion.

The plurality of supports may include eight supports, and eight spacers may be formed between the eight supports.

The support member includes an upper support member connecting the upper portion of the bobbin and the upper portion of the housing, and a lower support member connecting the lower portion of the bobbin and the lower portion of the housing, And the lower supporting member may be located in the spacing space.

The first movable part includes a coil having a pair of outgoing lines, the lower supporting members are provided in a pair, and each of the pair of lower supporting members is electrically connected to each of the pair of outgoing lines .

Wherein the bobbin is provided with a sensor unit for sensing a movement amount or a position of the bobbin relative to the housing, the upper support member is connected to the sensor unit, the upper support member is spaced apart from at least six separation ends, Four of the six separation stages are electrically connected to the sensor unit, and the other two separation stages are electrically connected to the lower support member.

A base supporting the housing from below; And a cover member coupled to the upper side of the base and accommodating the bobbin and the housing therein, wherein the support member is spaced apart from the cover member.

And a third movable part located between the housing and the base and selectively moving the second movable part through an electromagnetic interaction with the second movable part.

A camera module according to an embodiment of the present invention includes: a lens module; A first movable part having a first movable part and a bobbin having the first movable part on an outer circumferential surface and the lens module coupled to an inner circumferential surface thereof; A second movable part located on the outer side of the first movable part, the second movable part positioned to face the first movable part; and a housing in which the second movable part is located; And a support member coupled to the bobbin and the housing, the support member movably supporting the bobbin with respect to the housing, wherein the bobbin includes: a movable portion engaging portion formed on an outer circumferential surface and having the first movable portion; And a support portion extending from the coupling portion and supporting the first movable portion, wherein the support portion includes a plurality of support members spaced from each other along the outer periphery of the bobbin, and between the plurality of support members, can do.

An optical apparatus according to an embodiment of the present invention includes a main body, a display unit disposed on one side of the main body to display information, and a camera module mounted on the main body to photograph an image or a photograph, A first movable part; A bobbin in which the first movable part is located; A second movable part positioned to face the first movable part; A housing located outside the bobbin and having a second movable part; And a support member coupled to the bobbin and the housing, the support member movably supporting the bobbin with respect to the housing, wherein the bobbin includes: a movable portion engaging portion formed on an outer circumferential surface and having the first movable portion; And a support portion extending from the coupling portion and supporting the first movable portion, wherein the support portion includes a plurality of support members spaced from each other along the outer periphery of the bobbin, and between the plurality of support members, can do.

Through the present invention, the performance of the AF or OIS function can be ensured and the oscillation phenomenon at the resonance point can be prevented.

1 is a perspective view showing a lens driving unit according to an embodiment of the present invention.
2 is an exploded perspective view showing a lens driving unit according to an embodiment of the present invention.
3 is a bottom view showing a part of the configuration of a lens driving unit according to an embodiment of the present invention.
4 is a sectional view taken along the line X-X 'in FIG.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

As used herein, the term "PCB" refers to a printed circuit board as an abbreviation of a printed circuit board. In the following description, "FPCB" refers to a flexible printed circuit board as an abbreviation of a flexible printed circuit board.

Hereinafter, a configuration of an optical apparatus according to an embodiment of the present invention will be described.

The optical apparatus according to an exemplary embodiment of the present invention may be applied to a mobile phone, a mobile phone, a smart phone, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants) Portable Multimedia Player), navigation, and the like, but is not limited thereto, and any device for capturing images or photographs is possible.

An optical apparatus according to an embodiment of the present invention includes a main body (not shown), a display unit (not shown) disposed on one side of the main body to display information, (Not shown) having a module (not shown).

Hereinafter, the configuration of the camera module will be described.

The camera module further includes a lens driving unit 10, a lens module (not shown), an infrared cut filter (not shown), a printed circuit board (not shown), an image sensor (not shown), and a control unit .

The lens module may include one or more lenses (not shown) and a lens barrel for accommodating the one or more lenses. However, one configuration of the lens module is not limited to the lens barrel, and any structure can be used as long as it can support one or more lenses. The lens module can be coupled to the lens driving unit 10 and move together with the lens driving unit 10. [ The lens module can be screwed with the lens driving unit 10 as an example. The lens module may be coupled to the inside of the lens driving unit 10 as an example. On the other hand, the light having passed through the lens module can be irradiated to the image sensor.

The infrared cutoff filter can block the light of the infrared region from entering the image sensor. The infrared cut filter may be located, for example, between the lens module and the image sensor. The infrared cut filter may be installed in a base 500 to be described later, and may be coupled to a holder member (not shown). The infrared filter may be mounted in a hollow hole 510 formed at the center of the base 500. The infrared filter may be formed of a film material or a glass material as one embodiment. On the other hand, the infrared ray filter may be formed by coating an infrared ray blocking coating material on a plate-shaped optical filter such as a cover glass for protecting an image pickup surface or a cover glass.

The printed circuit board can support the lens driving unit 10. [ An image sensor may be mounted on the printed circuit board. In more detail, the lens driving unit 10 is located outside the upper surface of the printed circuit board, and the image sensor may be positioned inside the upper surface of the printed circuit board. With this structure, the light passing through the lens module coupled to the inside of the lens driving unit 10 can be irradiated to the image sensor mounted on the printed circuit board. The printed circuit board can supply power to the lens driving unit 10. [ On the other hand, a control unit for controlling the lens driving unit 10 may be disposed on the printed circuit board.

The image sensor may be mounted on a printed circuit board. The image sensor may be positioned such that the optical axis and the lens module are aligned. Thereby, the image sensor can acquire light passing through the lens module. The image sensor can output the irradiated light as an image. The image sensor can be, for example, a charge coupled device (CCD), a metal oxide semiconductor (MOS), a CPD and a CID. However, the type of image sensor is not limited thereto.

The control unit may be mounted on a printed circuit board. On the other hand, the control unit may be located inside the lens driving unit 10. [ The control unit can control the direction, intensity, and amplitude of the current supplied to each of the components constituting the lens driving unit 10. [ The control unit controls the lens driving unit 10 to perform at least one of the autofocus function and the camera shake correction function of the camera module. That is, the control unit can control the lens driving unit 10 to move the lens module in the optical axis direction or tilt it in the direction perpendicular to the optical axis direction. Further, the control unit may perform feedback control of the autofocus function and the shake correction function.

Hereinafter, the configuration of the lens driving unit 10 will be described in detail with reference to the drawings.

2 is an exploded perspective view illustrating a lens driving unit according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a lens driving unit according to an embodiment of the present invention Fig. 4 is a cross-sectional view taken along the line X-X 'in Fig. 3. Fig.

1 to 4, a lens driving unit 10 according to an embodiment of the present invention includes a cover member 100, a first mover 200, a second mover 300, a stator 400, A base 500, a support member 600, and a sensing unit 700. In the lens driving unit 10 according to an embodiment of the present invention, the cover member 100, the first mover 200, the second mover 300, the stator 400, the base 500, At least one of the member 600 and the sensing unit 700 may be omitted.

The cover member 100 can form an appearance of the lens driving unit 10. [ The cover member 100 may be in the form of a hexahedron having an open bottom. However, the present invention is not limited thereto. The cover member 100 may include an upper surface 101 and side surfaces 102 extending downward from the outer side of the upper surface 101. On the other hand, the cover member 100 can be mounted on the upper portion of the base 500. The first mover 200, the second mover 300, the stator 400, and the support member 600 may be positioned in the inner space defined by the cover member 100 and the base 500. [ The cover member 100 may be mounted on the base 500 in close contact with a part or all of the side surface of the base 500 to be described later. With such a structure, the cover member 100 can protect the internal components from an external impact and have a function of preventing external contaminants from penetrating.

The cover member 100 may be formed of a metal material as an example. More specifically, the cover member 100 may be formed of a metal plate. In this case, the cover member 100 can block radio interference. That is, the cover member 100 can prevent the airflow generated from the outside of the lens driving unit 10 from flowing into the cover member 100. In addition, the cover member 100 can prevent the radio waves generated inside the cover member 100 from being emitted to the outside of the cover member 100. However, the material of the cover member 100 is not limited thereto.

The cover member 100 may include an opening 110 formed in the upper surface 101 to expose the lens module. The opening 110 may be formed in a shape corresponding to the lens module. That is, light introduced through the opening 110 can pass through the lens module. On the other hand, light having passed through the lens module can be transmitted to the image sensor.

The first movable element 200 may include a bobbin 210 and a first movable part 220. The first movable element 200 can be coupled with a lens module which is a component of the camera module. That is, the lens module may be located inside the first mover 200. In other words, the outer peripheral surface of the lens module can be coupled to the inner peripheral surface of the first movable element 200. On the other hand, the first movable element 200 can flow integrally with the lens module through interaction with the second movable element 300. That is, the first movable element 200 can move the lens module.

The first movable element 200 may include a bobbin 210. The first movable part 200 may include a first movable part 220 coupled with the bobbin 210.

The bobbin 210 may be coupled to a lens module. More specifically, the outer circumferential surface of the lens module may be coupled to the inner circumferential surface of the bobbin 210. The first movable part 220 may be coupled to the bobbin 210. The lower portion of the bobbin 210 may be coupled to the lower support member 900 and the upper portion of the bobbin 210 may be coupled to the upper support member 610. The bobbin 210 may be located inside the housing 310. The bobbin 210 may flow relative to the housing 310.

The bobbin 210 may include a lens coupling portion 211 formed inside. The lens coupling unit 211 may be coupled with a lens module. A screw thread having a shape corresponding to the thread formed on the outer circumferential surface of the lens module may be formed on the inner circumferential surface of the lens coupling portion 211. [ That is, the outer circumferential surface of the lens module can be screwed to the inner circumferential surface of the lens coupling portion 211.

The bobbin 210 may include a sensor guide unit 212 to which the first sensor unit 710 is coupled. The sensor guide unit 212 may be provided on the outer circumferential surface of the bobbin 210 in a shape corresponding to the first sensor unit 710. That is, the first sensor unit 710 can be coupled to the sensor guide unit 212. The first sensor unit 710 coupled to the sensor guide unit 212 moves integrally with the bobbin 210 and detects the movement of the bobbin 210 by detecting the second movable unit 320 mounted on the housing 310 Sensing can be performed.

The bobbin 210 may include a first movable portion engaging portion 810 through which the first movable portion 220 is wound or mounted. The first movable part engaging part 810 may be formed integrally with the outer surface of the bobbin 210. The first movable part engaging part 810 may be continuously formed along the outer surface of the bobbin 210 or spaced apart from the bobbin 210 by a predetermined distance. The first movable portion engaging portion 810 may include a depression formed by recessing a part of the outer surface of the bobbin 210. The first movable part 220 may be located on the first movable part 220 and the first movable part 220 located on the first movable part 220 may be supported by the support part 820.

The bobbin 210 may include an upper engagement portion 213 coupled with the upper support member 610. The upper engagement portion 213 can be engaged with the inner engagement portion 615 of the upper support member 610. As an example, the upper coupling portion 213 provided as a projection can be inserted and coupled to the inner coupling portion 615 provided as a groove. On the other hand, protrusions are provided on the upper support member 610, and grooves are provided on the bobbin 210 so that both are coupled. As shown in FIG. 2, the bobbin 210 may include a total of four upper coupling portions 213. Meanwhile, the bobbin 210 may include a lower coupling portion 214 coupled to the lower supporting member 900. The lower coupling portion 214 formed at the lower portion of the bobbin 210 may be coupled to the inner coupling portion 915 of the lower supporting member 900. As an example, the lower coupling portion 214 provided as a projection may be inserted and coupled to the inner coupling portion 915 provided as a groove.

The first movable part 220 may be positioned opposite to the second movable part 320 of the second mover 300. The first movable part 220 can move the bobbin 210 with respect to the housing 310 through electromagnetic interaction with the second movable part 320. The first movable part 220 may include a coil. The coil may be wound on the outer surface of the bobbin 210 by being guided by the first movable part engaging part 810. In another embodiment, the coils may be disposed on the outer surface of the bobbin 210 such that the four coils are independently provided so that the adjacent two coils are at 90 degrees to each other. When the first movable part 220 includes a coil, the power supplied to the coil may be supplied through the lower supporting member 900. At this time, the lower support member 900 may be provided as a pair for power supply to the coils. Meanwhile, the first movable part 220 may include a pair of lead wires (not shown) for power supply. In this case, each of the pair of outgoing lines of the first movable part 220 may be electrically coupled to each of the pair of lower side support members 900. On the other hand, when power is supplied to the coil, an electromagnetic field may be formed around the coil. Further, in another embodiment, the first movable portion 220 may include a magnet. In this case, the second movable part 320 may be provided as a coil.

The second mover 300 may be located outside the first mover 200 and opposed to the first mover 200. The second mover 300 can be supported by the base 500 positioned on the lower side. The second mover 300 may be located in the inner space of the cover member 100. [

The second mover 300 may include a housing 310 located outside the bobbin 210. The second mover 300 may include a second movable part 320 positioned opposite to the first movable part 220 and fixed to the housing 310.

The housing 310 may be formed in a shape corresponding to the inner surface of the cover member 100 forming the outer appearance of the lens driving unit 10. [ In addition, the housing 310 is formed of an insulating material, and may be formed as an injection molded article in consideration of productivity. The housing 310 may be disposed at a distance from the cover member 100 as a moving part for OIS (Optical Image Stabilization) driving. However, in the AF model, the housing 310 can be fixed on the base 500. In addition, in the AF model, the housing 310 may be omitted, and a magnet provided as the second movable part 320 may be fixed to the cover member 100. [

The upper and lower sides of the housing 310 are opened to accommodate the first mover 200 so as to be movable up and down. The housing 310 may include an inner space 311 which is vertically open on the inner side. The first mover 200 can be movably positioned in the inner space 311. That is, the inner space 311 may have a shape corresponding to that of the first mover 200. The outer circumferential surface of the inner space 311 may be spaced apart from the outer circumferential surface of the first mover 200.

The housing 310 may include a second movable part 312 coupled to the second movable part 320 to receive the second movable part 320. That is, the second movable part engaging part 312 can receive and fix the second movable part 320. The second movable portion 320 can be fixed to the second movable portion engagement portion 312 by an adhesive (not shown). Meanwhile, the second movable part coupling part 312 may be located on the inner peripheral surface of the housing 310. In this case, there is an advantage in favor of the electromagnetic interaction with the first movable part 220 located inside the second movable part 320. [ Further, the second movable part engaging part 312 may be in the form of, for example, an open bottom part. In this case, there is an advantage in favor of the electromagnetic interaction between the third movable part 420 and the second movable part 320 located below the second movable part 320. The second movable part engaging part 312 may be provided as four, for example. The second movable part 320 may be coupled to each of the four second movable part coupling parts 312.

An upper support member 610 may be coupled to the upper portion of the housing 310 and a lower support member 900 may be coupled to the lower portion of the housing 310. The housing 310 may include an upper engagement portion 313 coupled with the upper support member 610. The upper engagement portion 313 can be engaged with the outer engagement portion 614 of the upper support member 610. As an example, the upper coupling portion 313 provided as a projection may be inserted and coupled to the outer coupling portion 614 provided as a groove or a hole. Meanwhile, in another embodiment, protrusions may be provided on the upper support member 610 and grooves may be formed on the housing 310 so that the protrusions may be coupled to each other. Meanwhile, the housing 310 may include a lower coupling portion 314 coupled to the lower support member 900. The lower engaging portion 314 formed at the lower portion of the housing 310 can engage with the outer engaging portion 914 of the lower supporting member 900. [ As an example, the lower coupling portion 314 provided as a projection may be inserted and coupled to an outer coupling portion 914 provided as a groove or a hole.

The second movable portion 320 may be positioned opposite to the first movable portion 220 of the first movable element 200. [ The second movable part 320 can move the first movable part 220 through the electromagnetic interaction with the first movable part 220. The second movable portion 320 may include a magnet. The magnet may be fixed to the second movable part engaging part 312 of the housing 310. The second movable part 320 may be disposed in the housing 310 such that four magnets are independently provided as shown in FIG. 2, for example, so that two adjoining magnets are 90 ° apart from each other. That is, the second movable part 320 is equally spaced from the four side surfaces of the housing 310, so that the inner volume can be efficiently used. The second movable part 320 may be adhered to the housing 310 with an adhesive or the like, but is not limited thereto. Meanwhile, the first movable part 220 may include a magnet, and the second movable part 320 may include a coil.

The stator 400 may be positioned so as to face the lower side of the second mover 300. On the other hand, the stator 400 can move the second mover 300. In addition, the through holes 411 and 421 corresponding to the lens module may be located at the center of the stator 400. [

The stator 400 may include a circuit board 410 positioned between the third movable part 420 and the base 500. In addition, the stator 400 may include a third movable part 420 positioned to face the lower side of the second movable part 320.

The circuit board 410 may include a flexible printed circuit board (FPCB) which is a flexible circuit board. The circuit board 410 may be positioned between the third movable portion 420 and the base 500. On the other hand, the circuit board 410 can supply power to the third movable unit 420. In addition, the circuit board 410 can supply power to the first sensor unit 710 through the side support member 630 and the upper side support member 610. The circuit board 410 can supply power to the first movable unit 220 through the side support member 630, the upper support member 610, the connecting member 640, and the lower support member 900. The circuit board 410 may have a through hole 411 through which light passing through the lens module is passed. In addition, the circuit board 410 may include a terminal portion 412 that is bent and exposed to the outside. The terminal portion 412 may be connected to an external power source, and power may be supplied to the circuit board 410 through the terminal portion 412.

The third movable portion 420 may include a coil. When power is applied to the coil of the third movable part 420, the housing 310, to which the second movable part 320 and the second movable part 320 are fixed, can move integrally by interaction with the second movable part 320 have. The third movable part 420 may be mounted on or electrically connected to the circuit board 410. Meanwhile, the third movable part 420 may include a through hole 421 through which the light of the lens module is passed. Considering the downsizing of the lens driving unit 10 (the height in the z-axis direction in the optical axis direction), the third movable part 420 is formed of an FP coil, which is a patterned coil, (Not shown).

The base 500 can support the second mover 300. A printed circuit board may be positioned below the base 500. The base 500 may include a hollow hole 510 formed at a position corresponding to the lens coupling portion 211 of the bobbin 210. The base 500 may perform a sensor holder function to protect the image sensor. On the other hand, the base 500 may be provided with an infrared ray filter. An infrared ray filter may be coupled to the hollow hole 510 of the base 500.

The base 500 may include a foreign matter collecting unit 520 for collecting foreign matter introduced into the cover member 100 as an example. The foreign matter collecting unit 520 is disposed on the upper surface of the base 500 and can collect foreign substances on the inner space formed by the cover member 100 and the base 500 including the adhesive material. The base 500 may include a sensor mount 530 to which the second sensor 720 is coupled. That is, the second sensor 720 can be mounted on the sensor mounting portion 530. At this time, the second sensor 720 senses the horizontal movement of the housing 310 by sensing the second movable part 320 coupled to the housing 310. Two sensor mounting portions 530 may be provided as an example. The second sensor 720 may be located in each of the two sensor mounts 530. In this case, the second sensor 720 can be arranged to sense both the movement of the housing 310 in the x-axis direction and the y-axis direction.

The support member 600 can connect any two or more of the first mover 200, the second mover 300, and the base 500. The support member 600 may elastically connect any two or more of the first mover 200, the second mover 300 and the base 500 to allow relative movement between the respective components have. That is, the support member 600 may be provided as an elastic member. The support member 600 may include an upper support member 610, a lower support member 900, a side support member 630 and an energizing member 640 as shown in Fig. However, the energizing member 640 can be provided solely for energizing the upper side support member 610 and the lower side support member 900.

The upper support member 610 may include an outer portion 611, a medial portion 612, and a connection portion 613 as an example. The upper support member 610 includes an outer portion 611 coupled with the housing 310, a medial portion 612 coupled with the bobbin 210, and a connection portion 612 elastically connecting the outer portion 611 and the medial portion 612 613).

The upper support member 610 may be connected to the upper portion of the first mover 200 and the upper portion of the second mover 300. More specifically, the upper support member 610 may be coupled to the upper portion of the bobbin 210 and the upper portion of the housing 310. The upper support member 610 may include an outer engaging portion 614 and an inner engaging portion 615. The inner coupling portion 615 of the upper support member 610 is coupled to the upper coupling portion 213 of the bobbin 210 and the outer coupling portion 614 of the upper support member 610 is coupled to the upper coupling (313). ≪ / RTI >

The upper support member 610 may be divided into six as one embodiment. At this time, two of the six upper support members 610 may be used to apply power to the first movable unit 220 by being energized with the lower support member 900. Each of the two upper side support members 610 may be electrically connected to each of the pair of lower side support members 901 and 902 through a conductive member 640. On the other hand, the remaining four of the six upper support members 610 can be used to supply power to the first sensor unit 710 and transmit / receive information or signals between the control unit and the first sensor unit 710 .

The lower support member 900 may include a pair of lower support members 901 and 902 as an example. That is, the lower support member 900 may include a first lower support member 901 and a second lower support member 902. Each of the first lower support member 901 and the second lower support member 902 may be connected to each of a pair of outgoing lines of the first movable unit 220 provided as a coil to supply power. On the other hand, the pair of lower support members 900 can be electrically connected to the circuit board. With such a structure, the pair of the lower support members 900 can supply the power supplied from the circuit board to the first movable unit 220.

The lower support member 900 may include, for example, an outer side portion 911, an inner side portion 912, and a connecting portion 913. [ The lower support member 900 includes an outer side portion 911 coupled with the housing 310, an inner side portion 912 coupled with the bobbin 210, and a connecting portion 932 that elastically connects the outer side portion 911 and the inner side portion 912 913).

The lower support member 900 may be connected to a lower portion of the first mover 200 and a lower portion of the second mover 300. More specifically, the lower support member 900 may be coupled to the lower portion of the bobbin 210 and the lower portion of the housing 310. The lower support member 900 may include an outer coupling portion 914 and an inner coupling portion 915. The lower coupling portion 214 of the bobbin 210 is coupled to the inner coupling portion 915 of the lower support member 900 and the lower coupling portion 214 of the lower support member 900 is coupled to the outer coupling portion 914 of the lower support member 900, Section 314 can be coupled.

One end of the side support member 630 may be fixed to the stator 400 or the base 500 and the other end may be coupled to the upper support member 610 or the second mover 300. One side of the side support member 630 may be coupled to the base 500 and the other side may be coupled to the second mover 300 as an example. In another embodiment, the side support member 630 may be coupled to the stator 400 at one side and the upper side support member 610 at the other side. In this way, the side support member 630 elastically supports the second mover 300, so that the second mover 300 can be moved in a horizontal direction or tilted.

The side support members 630 may be provided in the same number as the upper side support members 610 as an example. That is, the side support members 630 may be connected to each of the six upper support members 610 provided in six. In this case, the side support members 630 can supply the power supplied from the stator 400 or the outside to the upper side support members 610, respectively. The number of the side support members 630 can be determined in consideration of symmetry as one embodiment. As shown in FIG. 2, the side support members 630 may be provided at each of two corners of the housing 310.

The side support member 630 may be coupled to the upper support member 610 as an example and may include a configuration for shock absorption. The shock absorbing structure may be provided on at least one of the side support member 630 and the upper side support member 610. [ The configuration for shock absorption may be a separate member such as a damper. Further, the configuration for absorbing the shock may be realized by changing the shape of any one of the side support member 630 and the upper side support member 610.

The energizing member 640 can electrically connect the upper side support member 610 and the lower side support member 900. The energizing member 640 may be separately provided from the side support member 630. [ The power supplied to the upper side support member 610 through the energizing member 640 is supplied to the lower side support member 900 and the first movable part 220 can be supplied with power through the lower side support member 900. [

The sensor unit 700 may be used for at least one of AF (Auto Focus) feedback and OIS (Optical Image Stabilization) feedback. That is, the sensor unit 700 can detect the position or movement of any one of the first mover 200 and the second mover 300. The sensor unit 700 may include a first sensor unit 710 and a second sensor 720 as an embodiment. The first sensor unit 710 senses the relative upward and downward movement of the bobbin 210 relative to the housing 310 to provide information for AF feedback. The second sensor 720 senses the horizontal movement or tilt of the second mover 300 and can provide information for OIS feedback.

The first sensor unit 710 may be located in the first mover 200. More specifically, the first sensor unit 710 may be located on the bobbin 210. [ The first sensor unit 710 may be inserted into and fixed to the second guide unit 212 formed on the outer circumferential surface of the bobbin 210. The first sensor unit 710 may include a first sensor 711, a flexible circuit board 712, and a terminal unit 713 as an example.

The first sensor 711 can sense the movement or position of the bobbin 210. The first sensor 711 can sense the position of the second movable part 320 mounted on the housing 310. The first sensor 711 may be a hall sensor as an embodiment. The first sensor 711 can sense the relative position between the bobbin 210 and the housing 310 by sensing the magnetic force generated from the second movable part 320.

The first sensor 711 may be fixed to the flexible circuit board 712. The flexible circuit board 712 may be provided in a strip shape as shown in FIG. 2 as an embodiment. At least a portion of the flexible circuit board 712 may be inserted into the sensor guide portion 212 in a shape corresponding to the sensor guide portion 212 of the bobbin 210. The flexible circuit board 712 may be an FPCB as an example. That is, the flexible circuit board 712 is flexible and can be bent to correspond to the shape of the sensor guide 212. A terminal portion 713 may be formed on the flexible circuit board 712.

The terminal portion 713 may receive power and supply power to the first sensor 711 through the flexible circuit board 712. [ Also, the terminal portion 713 may receive a control command for the first sensor 711 or may transmit a sensed value from the first sensor 711. [ Four terminal portions 713 are provided as one embodiment and may be electrically connected to the upper side support member 610. In this case, the two terminal portions 713 are used for receiving power from the upper support member 610, and the remaining two terminal portions 713 can be used for transmitting and receiving information or signals.

The second sensor 720 may be located in the stator 400. The second sensor 720 may be located on the upper surface or the lower surface of the circuit board 410 of the stator 400. The second sensor 720 may be disposed on the sensor mounting portion 530 formed on the bottom surface of the circuit board as an example. The second sensor 720 may include a Hall sensor as one embodiment. In this case, the relative movement of the second mover 300 with respect to the stator 400 can be sensed by sensing the magnetic field of the second movable part 320 of the second mover 300. The second sensor 720 is provided as two or more as an example, and can sense all of the x-axis and y-axis motions of the second mover 300.

The bobbin 210 may include a first movable part engaging part 810 formed on the outer circumferential surface and having the first movable part 220 positioned thereon. That is, the first movable part 220 can be coupled to the first movable part 810. The first movable part engaging part 810 may be formed by recessing the outer peripheral surface of the bobbin 210 inward.

The bobbin 210 may include a support portion 820 extending from the first movable portion engagement portion 810 and supporting the first movable portion 220. That is, the support portion 820 can support the first movable portion 220 from one side. The supporting portion 820 may extend below and to the outside of the first movable portion engaging portion 810 to support the lower end of the first movable portion 220 as an example.

The support portion 820 may include a plurality of supports 821, 822, and 823 positioned to be spaced apart from each other along the outer periphery of the bobbin 210. The support portion 820 may be provided in a stepped manner to support the lower end of the first movable portion 220. A spacing space 830 may be formed between the plurality of supports 821, 822, and 823. On the other hand, the support member 600 may be positioned in the spacing space 830. More specifically, the lower support member 900 may be positioned in the spacing space 830.

The lower support member 900 includes an inner portion 912 coupled to the bobbin 210, an outer portion 911 coupled to the housing 310, and a connection portion 913 connecting the inner portion 912 and the outer portion 911 can do. On the other hand, the connection portion 913 may be located in the spacing space 830 formed between the plurality of supports 821, 822, and 823.

The lower support member 900 may include, for example, four support units 910, 920, 930 and 940 as shown in Fig. That is, the lower support member 900 may include a first support unit 910, a second support unit 920, a third support unit 930, and a fourth support unit 940. Each of the four support units 910, 920, 930 and 940 includes a first inner portion 912a coupled to the bobbin 210, a first outer portion 911a coupled to the housing 310 and a first inner portion 912a And a first connection part 913a connecting the first outer side part 911a.

The first connection portion 913a may include a plurality of bent portions 916 and 917 formed by bending or curving. That is, the first connection portion 913a may include a first bent portion 916 and a second bent portion 917. [ On the other hand, two or more of the plurality of bent portions 916 and 917 may be located in the spacing space 830. That is, the first bent portion 916 and the second bent portion 917 may be located in the spacing space 830.

A plurality of spacing spaces 830 may be provided. The number of the spacing spaces 830 may be eight, for example. At this time, eight supporting portions 820 may be provided. On the other hand, at least a part of the first connection portion 913a may be located in one or more of the plurality of spacing spaces 830 in the spacing space 830. More specifically, the support portion 820 includes a first support body 821, a second support body 822 positioned adjacent to the first support body 821, and a third support body 822 adjacent to the second support body 822, (823). The spacing space 830 includes a first spacing space 831 located between the first and second support members 821 and 822 and a first spacing space 831 between the second and fourth support members 822 and 823. [ And a second spacing space 832 positioned in the second spacing region 832. That is, the first spacing space 831 and the second spacing space 832 may be positioned with the second support member 822 therebetween. In other words, the first spacing space 831 may be located on one side of the second support body 822, and the second spacing space 832 may be on the other side of the second support body 822. The first spacing space 831 and the second spacing space 832 may be located adjacent to each other. At least a portion of the first connection 913a may be located in both the first spacing space 831 and the second spacing space 832 or may be located in either the first spacing space or the second spacing space have.

The housing 310 may include a first housing edge portion 315 having a side surface formed therein and a second housing edge portion 316 positioned adjacent the first housing edge portion 315. As an example, the housing 310 may have four edges or corners, and the first housing edge 315 and the second housing edge 316 may not be located in a diagonal direction with respect to each other. The first outer side 911a is located closer to the first housing edge 315 than the second housing edge 316 and the first inner side 912a is located closer to the second housing edge 315 than the first housing edge 315, And may be positioned close to the edge portion 316. That is, the first outer side portion 911a and the first inner side portion 912a may be separated from each other with respect to the center of one side of the housing 310.

The spacing space 830 may be spaced a distance corresponding to the first housing edge 315 and the second housing edge 316. 3, the distance between the second spacing space 832 and the first housing edge portion 315 is larger than the spacing distance between the second spacing space 832 and the second housing edge portion 316, ≪ / RTI > However, the first spacing space 831 may be biased by the first housing edge portion 315.

A part of the first movable part 220 can be exposed through the spacing space 830. At this time, the exposed first movable part 220 and the connection part 913 may be arranged to face each other. Four spaced spacing spaces 830 may be formed on each side so that the connecting portion 913 may be disposed. Four spaced apart spacing spaces 830 may be formed at corners (corner portions) so that the outer side 911 may be disposed.

Hereinafter, operations and effects of a camera module according to an embodiment of the present invention will be described with reference to the drawings.

First, an autofocus function of a camera module according to an embodiment of the present invention will be described. When power is supplied to the first mover 220, the first mover 220 and the second mover 320, which are provided as a magnet, are moved by the electromagnetic interaction between the first mover 220 and the second mover, (320). ≪ / RTI > At this time, the bobbin 210 to which the first mover 220 is coupled moves integrally with the first mover 220. That is, the bobbin 210 coupled to the inner side of the lens module moves up and down with respect to the housing 310. Such movement of the bobbin 210 results in moving the lens module closer to the image sensor or moving away from the image sensor, so focus adjustment to the subject is performed.

On the other hand, autofocus feedback can be applied for more precise realization of the autofocus function of the camera module according to an embodiment of the present invention. The first sensor 711 mounted on the bobbin 210 and provided as a hall sensor senses the magnetic field of the second movable part 320 provided as a magnet fixed to the housing 310. Meanwhile, when the bobbin 210 moves relative to the housing 310, the amount of the magnetic field sensed by the first sensor 711 changes. The first sensor 711 senses the movement amount or position of the bobbin 210 in the z-axis direction in this manner and transmits the detection value to the control unit. The control unit determines whether to perform an additional movement with respect to the bobbin 210 through the received sensing value. Since such a process is generated in real time, the autofocus function of the camera module according to an embodiment of the present invention can be performed more precisely through autofocus feedback.

The camera shake correction function of the camera module according to an embodiment of the present invention will be described. When power is supplied to the third mover 420, the second mover 320 is moved by the electromagnetic interaction of the third mover 420 and the second mover 320 provided as a magnet, (420). ≪ / RTI > At this time, the housing 310 to which the second mover 320 is coupled moves integrally with the second mover 320. That is, the housing 310 is moved in the horizontal direction with respect to the base 500. At this time, the tilting of the housing 310 with respect to the base 500 may be induced. This movement of the housing 310 is a result of the lens module moving in a direction parallel to the direction in which the image sensor is placed with respect to the image sensor, so that the camera shake correction function is performed.

Meanwhile, camera shake correction feedback may be applied for more precise realization of the camera shake correction function of the camera module according to an embodiment of the present invention. A pair of second sensors 720 mounted on the base 500 and equipped with hall sensors sense the magnetic field of the second movable part 320 provided as a magnet fixed to the housing 310. On the other hand, when the housing 310 performs relative movement with respect to the base 500, the amount of the magnetic field sensed by the second sensor 720 changes. The pair of second sensors 720 senses the movement amount or the position of the housing 310 in the horizontal direction (x-axis, y-axis direction) in this way and transmits the detection value to the control unit. The control unit determines whether to perform the additional movement to the housing 310 through the received sensing value. Since the above process is performed in real time, the camera shake correction function of the camera module according to one embodiment of the present invention can be performed more precisely through the camera shake correction feedback.

In order to perform the above-mentioned autofocus function, it is inevitably required that the bobbin 210 be movably supported with respect to the housing 310. [ Meanwhile, in the camera module according to the embodiment of the present invention, the lower supporting member 900 elastically supports the bobbin 210 with respect to the housing 310. Here, the lower support member 900 needs to be provided with an elastic member having a large width and a long length. This is because the oscillation phenomenon at the resonance point is problematic in the case of a shape having a narrow width and a short length like the elastic member of the related art. Especially, the oscillation phenomenon at the second resonance point is problematic as the second resonance point is formed around 200 Hz .

Since at least a part of the lower support member 900 of the camera module according to the embodiment of the present invention is located in the spacing space 830 formed between the plurality of supports 820 located along the outer periphery of the bobbin 210, The lower support member 900 of the present invention can be provided in a wider form and a longer form than the conventional case.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: cover can 200: first movable member
300: second movable element 400: stator
500: base 600: support member
700: Sensor part 810: First movable part coupling part
820: Support part 830: Spacing space
900: Lower side support member

Claims (17)

A first movable part;
A bobbin in which the first movable part is located;
A second movable part positioned to face the first movable part;
A housing located outside the bobbin and having a second movable part; And
And a support member coupled to the bobbin and the housing, the support member movably supporting the bobbin with respect to the housing,
Wherein the bobbin includes a support portion formed on an outer circumferential surface and supporting the first movable portion,
Wherein the support portion includes a plurality of supports positioned to be spaced apart from each other along an outer periphery of the bobbin.
The method according to claim 1,
A spacing space is formed between the plurality of supports,
And the support member is located in the spacing space.
3. The method of claim 2,
Wherein the support member includes an inner portion coupled to the bobbin, an outer portion coupled to the housing, and a connection portion connecting the inner portion and the outer portion,
And the connecting portion is located in the spacing space.
3. The method of claim 2,
The support member includes four support units located in a virtual single plane,
Wherein one of the four support units comprises a lens driving unit including a first inner portion coupled to the bobbin, a first outer portion coupled to the housing, and a first connection portion connecting the first inner portion and the first outer portion, .
5. The method of claim 4,
Wherein the first connection portion includes a plurality of bends formed to be bent or curved,
Wherein at least two of the plurality of bent portions are located in the spacing space.
6. The method of claim 5,
The plurality of spacing spaces are provided,
Wherein at least a part of the first connecting portion is located in at least two of the plurality of spaced spaces.
6. The method of claim 5,
Wherein the plurality of supports comprises a first support, a second support adjacent to the first support, and a third support adjacent to the second support,
Wherein the spacing space includes a first spacing space located between the first and second supports and a second spacing space located between the second and third supports,
And at least a part of the first connecting portion is located in the first spacing space and the second spacing space.
5. The method of claim 4,
The housing includes a first housing edge portion having a side surface formed therein and a second housing edge portion positioned adjacent to the first housing edge portion,
Wherein the first outside portion is located closer to the first housing edge portion than the second housing edge portion and the first inside portion is positioned closer to the second housing edge portion than the first housing edge portion.
9. The method of claim 8,
Wherein the spacing space is spaced a distance corresponding to each of the first housing edge portion and the second housing edge portion.
The method according to claim 1,
Wherein the plurality of supports comprises eight supports,
And eight spaced spaces are formed between the eight supports.
The method according to claim 1,
The support member includes an upper support member connecting the upper portion of the bobbin and the upper portion of the housing, and a lower support member connecting the lower portion of the bobbin and the lower portion of the housing,
A spacing space is formed between the plurality of supports,
And the lower supporting member is located in the spacing space.
12. The method of claim 11,
The first movable portion includes a coil having a pair of lead wires,
The lower support members are provided in a pair,
And each of the pair of lower support members is electrically connected to each of the pair of outgoing lines.
12. The method of claim 11,
Wherein the bobbin is provided with a sensor unit for sensing an amount or position of movement of the bobbin relative to the housing,
Wherein the upper support member is connected to the sensor unit,
Wherein the upper support member is spaced apart from at least six separation ends,
Wherein four of the six separation stages are electrically connected to the sensor unit, and the remaining two separation stages are electrically connected to the lower support member.
The method according to claim 1,
A base supporting the housing from below; And
And a cover member coupled to the upper side of the base and accommodating the bobbin and the housing on the inside,
And the support member is spaced apart from the cover member.
15. The method of claim 14,
A housing located between said housing and said base,
And a third movable portion for selectively moving the second movable portion through an electromagnetic interaction with the second movable portion.
A lens module;
A first movable part having a first movable part and a bobbin having the first movable part on an outer circumferential surface and the lens module coupled to an inner circumferential surface thereof;
A second movable part located on the outer side of the first movable part, the second movable part positioned to face the first movable part; and a housing in which the second movable part is located; And
And a support member coupled to the bobbin and the housing, the support member movably supporting the bobbin with respect to the housing,
Wherein the bobbin includes a movable portion engaging portion formed on an outer circumferential surface and having the first movable portion and a support portion extending from the movable portion engaging portion and supporting the first movable portion,
The support portion includes a plurality of supports positioned to be spaced apart from each other along the outer periphery of the bobbin,
And the support member is positioned between the plurality of supports.
A display unit disposed on one side of the main body to display information; and a camera module mounted on the main body and configured to photograph an image or a photograph,
The camera module includes:
A first movable part;
A bobbin in which the first movable part is located;
A second movable part positioned to face the first movable part;
A housing located outside the bobbin and having a second movable part; And
And a support member coupled to the bobbin and the housing, the support member movably supporting the bobbin with respect to the housing,
Wherein the bobbin includes a movable portion engaging portion formed on an outer circumferential surface and having the first movable portion and a support portion extending from the movable portion engaging portion and supporting the first movable portion,
The support portion includes a plurality of supports positioned to be spaced apart from each other along the outer periphery of the bobbin,
And the support member is positioned between the plurality of supports.

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