TWI510851B - Autofocusing and optical image stabilizing apparutus for camera, and the camera with the same - Google Patents

Description

Camera auto focus, hand shake correction device and small camera to install the device

The invention relates to a camera automatic focusing, a hand shake correction device and a small camera mounted thereon, and more particularly to a method for adjusting a focus of a subject by using a coil and a motor magnetic piece to move the lens up and down, and horizontally A camera that automatically corrects the focus of the hand-shake, the hand-shake correction device, and a small camera that mounts the device.

Fig. 1 is a perspective view showing a conventional image capturing apparatus having a hand-shake correction function; Fig. 2 is an exploded perspective view showing a conventional image capturing apparatus having a hand-shake correction function; and Fig. 3 is a partially enlarged exploded perspective view of Fig. 2A.

As shown in FIGS. 1 to 3, the conventional compact camera device includes a casing (10), a lens unit (20), a first coil (30), a first motor magnet piece (40), and an iron piece (50).

The inside of the casing (10) is provided with a lens unit (20) that moves horizontally.

The lens unit (20) is internally provided with a lens (60), and the lens (60) is movable toward the optical axis of the lens (60) to adjust the focus of the subject.

The lens unit (20) includes: a lens barrel (21) surrounding the lens (60); a sleeve (22) into which the lens barrel (21) can be inserted; and a second inside the sleeve (22) A motor magnet piece (23); a second coil (24) mounted outside the lens barrel (21). When the second coil (24) is powered, the electromagnetic field generated by the coil and the magnetic field generated on the second motor magnet (23) interact with each other to make the lens barrel (21) light toward the lens (60). Move in the direction of the axis.

A first coil (30) is mounted on the outside of the lens unit (20).

The first coil (30) is curled in the direction of rotation centering on the iron piece (50).

In addition, the first motor magnetic piece (40) is mounted on the inner side surface of the outer casing (10), adjacent to the first coil (30), and is composed of a plurality of parts, respectively corresponding to the upper and lower ends of the iron piece (50). adjacent.

One end of the iron piece (50) is adjacent to the first motor magnetic piece (40), and the other end is inserted in the central portion of the first coil (30) adjacent to the first coil (30).

As described above, when the first coil (30) is powered, the electromagnetic field generated by the first coil (30) interacts with the magnetic field generated on the first motor magnet (40) to cause the lens unit (20). ) Moves in the horizontal direction to correct the shaking of the subject.

In the conventional compact camera device, the first motor magnetic piece (40) that corrects the shaking and the second motor magnetic piece (23) that adjusts the focus are independently configured, which causes an increase in the number of components, a complicated structure, and a large volume. .

In order to solve the above problems of the prior art, an object of the present invention is to provide a method for driving hand shake correction and focus adjustment by using the same motor magnetic piece, thereby reducing the number of components, simplifying the structure, reducing the volume, and easily correcting the hand shake and adjusting the focus. The camera automatically adjusts the focus, the hand shake correction device and the small camera on which the device is mounted.

In order to achieve the above object of the present invention, in accordance with a first aspect of the present invention, a camera auto-focusing and hand-shake correction device is provided. The camera auto-focusing and hand-shake correction device includes: being mounted inside the camera and capable of horizontal movement a first blade provided with a first coil element on the outside; a lens inside, a lens mounted inside the first blade, a second blade that is movable up and down, and a second coil element on the outside; The inside of the camera is disposed on a motor magnetic sheet outside the first blade.

The motor magnetic sheet includes: a first magnetic pole portion polarized in a direction of the second coil element; a second magnetic pole portion formed on an upper portion and a lower portion of the first magnetic pole portion, and a second magnetic pole opposite to the first magnetic pole portion Magnetic pole part.

Further, a magnetic field is formed around the first coil element and the second coil element.

When the first coil element is powered, the first electromagnetic field generated on the coil and the magnetic field generated on the motor magnet piece interact with each other to move the first blade and the second blade together in a horizontal direction; When the second coil element is powered, the second electromagnetic field generated on the coil interacts with the magnetic field generated on the motor magnet piece to move the second vane up and down inside the first vane.

Further, the first vane is square, the first coil element is composed of four, and is respectively attached to an outer surface of the first vane, and the second coil element is centered on a central axis of the second vane. The first coil component is curled around an axis perpendicular to a central axis of the second coil component; the first coil component disposed in an opposite direction is electrically connected, and is powered by the motor magnetic sheet during power supply The magnetic force is received in the same direction.

A camera auto-focusing and hand-shake correction device of the present invention further includes: a load-bearing spring having one end mounted on the first blade and the other end mounted on the second blade and supporting the second blade upward. Further, when the second coil element is supplied with power to move the second vane up and down, the load bearing spring is elastically deformed.

In order to achieve the above object of the present invention, in accordance with a second aspect of the present invention, a small camera having an automatic focus adjustment and a hand shake correction device is provided. The small camera having the automatic focus adjustment and the hand shake correction device includes: an upper and lower open casing. a first blade that is horizontally movable inside the outer casing; a first coil component that is mounted outside the first blade; and a lens that is mounted inside the first blade and is movable up and down a second blade member; the second coil member mounted on the outer side of the second blade; the one end is mounted on the first blade and the other end is mounted on the second blade and supported upward a bearing spring of the second blade; a motor magnet piece disposed on an inner side surface of the outer casing and disposed outside the first blade; an upper end mounted on the outer casing and the other end mounted on the first blade, wherein the a round wire spring in which the first blade floats; control of applying a power source to the first coil component and the second coil component Portion; arranged in a lower portion of the second blade, the image sensor may be captured subject image via the lens.

The first coil element is curled around an axis perpendicular to a central axis of the second coil element.

The motor magnetic piece includes: a first magnetic pole portion polarized in a direction of the second coil element; a second magnetic pole portion formed on an upper portion and a lower portion of the first magnetic pole portion, and a second magnetic pole opposite to the first magnetic pole portion Magnetic pole part. Further, a magnetic field is formed around the first coil element and the second coil element. When the first coil element is powered, the first electromagnetic field generated on the coil and the magnetic field generated on the motor magnet piece interact with each other to move the first blade and the second blade together in a horizontal direction; When the second coil element is powered, the second electromagnetic field generated on the coil interacts with the magnetic field generated on the motor magnet piece to move the second vane up and down inside the first vane.

In addition, the outer casing is a hexahedron. The round wire spring is composed of eight, and each pair is disposed diagonally inside the corner of the outer casing.

Further, the first vane is square, and is provided with a mounting groove into which the round spring can be inserted. A protruding portion is formed to protrude outward in a lower portion of the first blade, and an inner side plate is formed inward. The protruding portions are respectively formed at a water chest portion of the first blade. The mounting groove includes a first mounting groove formed in the protruding portion and a second mounting groove formed in the inner plate. The round wire spring includes: an upper end fixedly mounted on the outer casing, and a lower end inserted into an outer circular wire spring mounted on the first mounting groove; an upper end fixedly mounted on the outer casing, and a lower end inserted into the inner side of the second mounting groove Round wire spring.

Further, the round wire springs are respectively connected to the first coil element and the second coil element, and the control unit supplies power to the first coil element and the second coil element. The first coil element is composed of four and is attached to each of the outer surfaces of the first vane. The first coil elements disposed in opposite directions are electrically connected, and the magnetic force is received by the motor magnetic sheet in the same direction during power supply, and the round spring is elastically deformed, so that the first blade and the second blade are Move horizontally.

Further, the inner side plate formed on the first vane is provided with a lifting groove that penetrates vertically. A lifting protrusion that can be inserted into the lifting groove is formed in a lower portion of the second blade. One end of the load bearing spring is fixedly mounted on a lower portion of the first blade, and the other end is fixedly mounted on the lifting protrusion. When power is supplied to the second coil element, the horizontal movement of the second blade is prevented, thereby moving up and down.

Further, the outer casing includes: a spacer disposed on an upper portion of the first blade and the second blade, and fixedly attached to the round spring; a hub disposed at a lower portion of the first blade and the second blade; covering the partition a piece, a housing of the first blade and the second blade. An upper fixing protrusion that is spaced apart from each other is formed in a lower portion of the spacer, and an upper portion of the motor magnetic piece is inserted between the upper fixing protrusions; and a lower fixing protrusion that is spaced apart from the upper portion of the hub is formed at a lower portion A lower portion of the motor magnetic piece may be inserted between the fixing protrusions.

In order to achieve the above object of the present invention, in accordance with a third aspect of the present invention, a camera auto-focusing and hand-shake correction device is provided. The camera auto-focusing and hand-shake correction device includes: being mounted inside the camera and capable of horizontal movement a first blade provided with a first coil element on the outside; a lens inside, a lens mounted inside the first blade, a second blade that is movable up and down, and a second coil element on the outside; The inside of the camera is disposed on a motor magnetic sheet outside the first blade. a through hole communicating with the inner and outer sides is disposed on a side surface of the first blade; the second coil element is inserted into the through hole and adjacent to the motor magnetic piece; and when the first coil element is powered, by the coil The generated first electromagnetic field interacts with the magnetic field generated on the motor magnet piece to move the first blade and the second blade together in a horizontal direction; when the second coil element is powered, it is generated by the coil The second electromagnetic field interacts with the magnetic field generated on the motor magnet piece to move the second blade up and down inside the first blade.

Further, the first coil element is curled around the through hole, and an insertion hole that communicates with the through hole is provided therein. The second coil element is curled around the second blade. The second coil element includes an insertion portion that is inserted into the insertion hole, and a connection portion that is connected between the adjacent insertion portions.

Further, the first vane is square, and the first coil element is composed of four and is attached to each outer surface of the first vane. The first coil elements disposed in opposite directions are electrically connected, and receive magnetic force in the same direction by the motor magnetic sheet during power supply.

Further, the motor magnetic piece includes: a first magnetic pole portion polarized in a direction of the second coil element; a second magnetic pole portion formed on an upper portion and a lower portion of the first magnetic pole portion, and a second magnetic pole opposite to the first magnetic pole portion Magnetic pole part. Further, a magnetic field is formed around the first coil element and the second coil element.

Further, the vertical length of the motor magnetic piece is longer than the vertical length of the first coil element; the vertical length of the first magnetic pole portion is longer than the vertical length of the insertion hole; and the vertical length of the insertion portion is shorter than the vertical length of the insertion hole.

Further, the maximum vertical spacing between the outer sides of the insertion portions is longer than the maximum vertical spacing between the outer surfaces of the first blades.

A camera auto-focusing and hand-shake correction device of the present invention further includes: a load-bearing spring having one end mounted on the first blade and the other end mounted on the second blade and supporting the second blade upward. When the second coil element is supplied with power to move the second vane up and down, the load bearing spring is elastically deformed.

In order to achieve the above object of the present invention, in accordance with a fourth aspect of the present invention, a small camera having an automatic focus adjustment and a hand shake correction device is provided. The small camera having an automatic focus adjustment and a hand shake correction device includes: an upper and lower open casing. Installed inside the outer casing, horizontally movable, and provided with a first vane penetrating through the inner and outer through holes on the side surface; and being crimped around the through hole to form an insertion hole connectable to the through hole, and being installed at the same time a first coil element outside the first blade; a lens inside, a second blade mounted inside the first blade and movable up and down; a second blade centered on the second blade, and mounted on the second blade a second coil element on the outer side; a bearing spring having one end mounted on the first blade and the other end mounted on the second blade and supporting the second blade upward; mounted on an inner side surface of the outer casing and disposed on the inner side a motor magnet piece on the outer side of the first blade; the upper end is mounted on the outer casing, and the other end is mounted on the first blade a round wire spring for floating the first blade; a control unit for applying a power source to the first coil element and the second coil element; and a lower portion of the second blade for capturing a subject image passing through the lens Like an image sensor. The second coil component includes an insertion portion that is inserted into the insertion hole and adjacent to the motor magnetic piece, and a connection portion is connected between the adjacent insertion portions. When the first coil element is powered, the first electromagnetic field generated on the coil and the magnetic field generated on the motor magnet piece interact with each other to move the first blade and the second blade together in a horizontal direction; When the second coil element is powered, the second electromagnetic field generated on the coil interacts with the magnetic field generated on the motor magnet piece to move the second vane up and down inside the first vane.

In addition, the outer casing is a hexahedron. The round wire spring is composed of eight, and each pair is disposed diagonally inside the corner of the outer casing.

Further, the first vane is square, and is provided with a mounting groove into which the round spring can be inserted. A protruding portion is formed to protrude outward in a lower portion of the first blade, and an inner side plate is formed inward. The protruding portions are respectively formed at a water chest portion of the first blade. The mounting groove includes a first mounting groove formed in the protruding portion and a second mounting groove formed in the inner plate. The round wire spring includes: an upper end fixedly mounted on the outer casing, and a lower end inserted into an outer circular wire spring mounted on the first mounting groove; an upper end fixedly mounted on the outer casing, and a lower end inserted into the inner side of the second mounting groove Round wire spring.

Further, the round wire springs are respectively connected to the first coil element and the second coil element, and the control unit supplies power to the first coil element and the second coil element. The first coil element is composed of four and is attached to each of the outer surfaces of the first vane. The first coil elements disposed in opposite directions are electrically connected, and the magnetic force is received by the motor magnetic sheet in the same direction during power supply, and the round spring is elastically deformed, so that the first blade and the second blade are Move horizontally.

Further, the inner side plate formed on the first vane is provided with a lifting groove that penetrates vertically. A lifting protrusion that can be inserted into the lifting groove is formed in a lower portion of the second blade. One end of the load bearing spring is fixedly mounted on a lower portion of the first blade, and the other end is fixedly mounted on the lifting protrusion. When power is supplied to the second coil element, the horizontal movement of the second blade is prevented, thereby moving up and down.

Further, the outer casing includes: a spacer disposed on an upper portion of the first blade and the second blade, and fixedly attached to the round spring; a hub disposed at a lower portion of the first blade and the second blade; covering the partition a piece, a housing of the first blade and the second blade. An upper fixing protrusion that is spaced apart from each other is formed in a lower portion of the spacer, and an upper portion of the motor magnetic piece is inserted between the upper fixing protrusions; and a lower fixing protrusion that is spaced apart from the upper portion of the hub is formed at a lower portion A lower portion of the motor magnetic piece may be inserted between the fixing protrusions.

Further, the first blade forms an upwardly protruding adhesive tape on each of the angular portions of the protruding portion; the through hole is formed between the adhesive tapes, and the first coil component is mounted thereon; The through opening is open upwards.

The camera automatically adjusts the focus, the hand shake correction device and the small camera mounted with the device have the beneficial effects that the motor magnetic sheet composed of the first magnetic pole portion and the second magnetic pole portion generates the same magnetic field and is formed in the first The circumference of the coil element and the second coil element, thereby reducing the number of components and making the structure easier, while still Reduces the overall volume, making it easy to correct hand tremors and adjust focus.

Further, the upper and lower lengths of the insertion portion are shorter than the upper and lower lengths of the insertion hole, so that the insertion portion can move up and down inside the insertion hole, and when the second coil element is supplied with power, the second electromagnetic field generated by the coil and the motor The magnetic fields generated on the magnetic sheets interact with each other to move the second blades up and down. This configuration makes it easy to adjust the focus of the subject.

Further, since the upper and lower lengths of the motor magnet piece are longer than the upper and lower lengths of the first coil element, and a sufficient magnetic field is formed around the first coil element and the second coil element, the first blade and the second blade are horizontally and vertically moved. . Since the upper and lower lengths of the first magnetic pole portion are longer than the upper and lower lengths of the insertion hole, and the power is supplied to the first coil element, the first electromagnetic field generated by the coil and the magnetic field act in a certain direction. One blade moves in the vertical direction.

Further, the lifting projections are inserted into the lifting grooves to restrict the movement in the horizontal direction and to move up and down, so that the second blades are more easily lifted and lowered inside the first blades.

In addition, the through opening is open upward, and this configuration is inside the first blade, making it easier to assemble the second blade with the second coil element.

In addition, the plurality of round wire springs enable the first blade and the second blade to float horizontally inside the outer casing, and are disposed diagonally on the inner side and the outer side of the adhesive tape, which makes the assembly of the camera easier and at the same time Reduced overall size.

4 is a perspective view of a small camera equipped with an automatic focus adjustment and a hand shake correction device according to an embodiment of the present invention; and FIG. 5 is a perspective exploded view of a small camera having an automatic focus adjustment and a hand shake correction device according to an embodiment of the present invention; FIG. 6 is a perspective view showing another direction of a small camera equipped with an automatic focus adjustment and a hand shake correction device according to an embodiment of the present invention; FIG. 7 is a view showing the motor magnetic separation of the automatic focus adjustment and hand shake correction device according to the embodiment of the present invention; FIG. 8 is an exploded perspective view of the auto focus and hand shake correction device according to the embodiment of the present invention; FIG. 9 is a cross-sectional view according to FIG. 4 (BB); FIG. 10 is a cross section according to FIG. Figure 11 is a cross-sectional view shown in Figure 4 (DD); Figure 12 is a schematic view showing the magnetic field formed around the motor magnetic sheet of the embodiment of the present invention.

As shown in FIG. 4 to FIG. 12, the auto focus and hand shake correction device A of the present invention includes: a first blade 200, a first coil component 300, a second blade 400, a second coil component 500, and a load bearing spring (610, 620). And motor magnetic sheet 700.

The first vane 200 described above is mounted inside the outer casing 100, is horizontally movable, and is provided with a second vane 400 therein.

As shown in FIGS. 7 and 8, the first vane 200 has a square shape, and the first coil element 300 is provided on the outer side thereof.

Specifically, the first blade 200 protrudes upward to form an adhesive tape 210.

As shown in FIG. 8, the adhesive tape 210 is formed on an angular portion of the first blade 200, and a through hole 211 is formed between the adhesive tape 210 and the adhesive tape 210.

The through hole 211 is square and can penetrate the inner side and the outer side of the first vane 200.

Further, since the through hole 211 is opened upward, the second vane 400 coupled to the second coil element 500 is easily joined inside the first vane 200 as will be described later.

Further, a protruding portion 220 is formed to protrude outward from the lower portion of the first vane 200.

The protruding portions 220 are respectively formed on the angular portions of the first vane 200 in which the adhesive tape 210 is provided.

As shown in FIG. 9, the protruding portions 220 are respectively inserted and disposed on the seating groove 133.

When the first blade 200 is horizontally moved, the protruding portion 220 is horizontally movable inside the seating groove 133.

As shown in FIG. 8, the protrusion portion 220 is provided with a first mounting groove 221.

As will be described later, the round wire spring 800 is fixedly mounted on the first mounting groove 221 described above.

Further, in the lower portion of the first vane 200, the inner side plate 230 is formed to protrude in the inner side direction.

As shown in FIG. 8, in the first vane 200, the inner side plate 230 protrudes inward to form an opening hole 231.

In addition, the inner side plate 230 is provided with a second mounting groove 232.

The second mounting grooves 232 are respectively formed on the inner side of the corners of the first vane 200 on which the adhesive tape 210 is mounted, and are disposed in the diagonal direction of the first mounting groove 221.

The round wire spring 800 is fixedly attached to the second mounting groove 232 in the same manner as the first mounting groove 221 described above.

Further, a lifting groove 233 is formed in the inner side plate 230.

The lifting groove 233 has a square shape and is vertically penetrated, and is connected to the opening hole 231 at the same time.

Further, a support protrusion 234 is formed on the lower surface of the first blade 200, that is, on the lower surface of the inner side plate 230.

The support protrusions 234 are square, and the above-mentioned load bearing springs (610, 620) can be mounted thereon.

The first coil element 300 is composed of a thin electric wire with a current inside, and is curled around an axis perpendicular to the central axis of the second coil element 500.

That is, as shown in FIG. 7, the first coil element 300 is curled around the through hole 211.

The first coil component 300 described above is crimped into a hollow shape and is formed with an insertion hole 310 therein.

The insertion hole 310 communicates with the through hole 211.

As shown in FIG. 8, since the first coil element 300 is curled along the shape of the through hole 211, the shape of the insertion hole 310 is square.

The insertion hole 310 has an unspecified shape and communicates with the through hole 211, and the second coil element 500 can be inserted and disposed.

As shown in FIGS. 7 and 8, the first coil elements (300, 300a, 300b, 300c, 300d) are composed of four, and are respectively attached to the outer side surface of the first vane 200, that is, the adhesive tape 210.

As described above, the first coil elements (300a, 300b) disposed in the mutually opposing direction can be electrically connected.

Specifically, the first coil elements (300a, 300b) disposed in opposite directions are electrically connected to each other along the inner side plate 230.

The other two first coil elements (300c, 300d) arranged in opposite directions may be electrically connected as described above.

When the power is supplied to the first coil element 300 electrically connected to each other, the motor magnet piece 700 can receive the magnetic force in the same direction.

As described above, when the first coil element 300 is powered, a first electromagnetic field can be formed around the first coil element 300, and the first electromagnetic field and the magnetic field generated on the motor magnet piece 700 interact with each other to cause the first blade 200. The second blade 400 is moved in the horizontal direction together with the second blade 400.

The first blade 200 and the second blade 400 are horizontally moved, so that the hand shake can be corrected, and the shake of the image captured by the image sensor described above is minimized, so that the captured image is made clearer.

The second vane 400 is mounted inside the first vane 200 and is movable up and down.

As shown in Fig. 8, the second vane 400 is an octagonal column, and a lens hole 401 having a lens (not shown) is formed inside thereof.

The lens hole 401 is connected to the first transmissive area 111, the second transmissive area 121, the opening hole 231, and the third transmissive area 131, and is photographed by an image sensor (not shown) disposed at a lower portion of the outer casing 100. The image of the subject of the above lens.

In the lower portion of the second blade 400, a lifting protrusion 410 that can be inserted into the lifting groove 233 is formed to protrude.

The elevating projections 410 are square, and are not horizontally movable inside the elevating grooves 233, and can only be moved up and down.

The second blade 400 moves horizontally together with the first blade 200, but only moves up and down inside the first blade 200.

The load bearing springs (610, 620) are provided at a lower portion of the lifting protrusion 410.

Further, a coil groove 420 into which the second coil element 500 is inserted can be formed on the outer surface of the second vane 400.

As shown in FIGS. 7 and 8, the second coil element 500 is curled around the central axis of the second vane 400 and attached to the outer side of the second vane 400.

As described above, in the second vane 400 including the second coil element 500, since the through hole 211 is opened upward, the mounting of the first vane 200 is facilitated.

Like the first coil element 300 described above, the second coil element 500 is composed of a thin electric wire with a current inside.

Specifically, as shown in FIG. 8, the second coil component 500 is composed of an insertion portion 510 and a connection portion 520.

The insertion portion 510 penetrates through the through hole 211 and is inserted into the insertion hole 310.

As shown in FIG. 10a, the insertion portion 510 inserted into the insertion hole 310 is adjacent to the motor magnetic sheet 700.

More specifically, as shown in FIGS. 10a and 10b, the maximum vertical pitch D1 between the outer side faces of the insertion portions 510 is longer than the maximum vertical interval D2 between the outer side faces of the first blades 200, and thus the insertion portion 510 is The insertion hole 310 can be inserted and disposed.

As described above, the insertion portion 510 is inserted into the insertion hole 310 such that the first coil component 300 and the second coil component 500 are adjacent to the same motor magnetic sheet 700. This configuration not only reduces the number of components but also makes The assembly is simpler and the camera is miniaturized.

In some cases, the maximum vertical pitch D1 between the outer side faces of the insertion portions 510 is longer than the maximum vertical pitch between the outer side faces of the first coil elements 300 disposed in the mutually opposing directions, and the first coil elements 300 are protruded outward. However, when the maximum vertical interval D1 between the outer side faces of the insertion portion 510 is shorter than or equal to the maximum vertical interval between the outer side faces of the first coil component 300, the first blade 200 and the second blade 400 are horizontal. The spacing of the movements is better.

Further, the vertical length L1 of the insertion portion 510 is shorter than the vertical pitch D3 of the insertion hole 310.

As described above, when the vertical length L1 of the insertion portion 510 is shorter than the vertical pitch D3 of the insertion hole 310 and the second blade 400 is moved up and down, the insertion portion 510 can move up and down inside the insertion hole 310.

As shown in FIG. 8, the connecting portion 520 is insertably disposed in the coil groove 420 for connecting the insertion portion 510 and the insertion portion 510.

The connecting portion 520 is inserted into the coil groove 420 to prevent the second coil element 500 from being detached from the second blade 400.

Further, by preventing the connecting portion 520 from coming into contact with the inner side surface of the adhesive tape 210, the second blade 400 can be lifted and lowered without being disturbed by other elements.

Further, as will be described later, the round wire spring 800 is interposed between the adhesive tape 210 and the connecting portion 520, and the connecting portion 520 is inserted into the coil groove 420 to secure the arrangement space of the round wire spring 800.

As described above, since the arrangement space of the above-described round wire spring 800 is secured between the adhesive tape 210 and the connecting portion 520, the structure is simplified and the object is reduced in size.

As described above, when the second coil element 500 is powered, a second electromagnetic field can be formed around the second coil element 500, and the second electromagnetic field interacts with the magnetic field generated on the motor magnet piece 700 to cause the second blade 400. The inside of the first blade 200 is lifted and lowered.

In the embodiment of the present invention, the insertion portion 510 is inserted into the insertion hole 310 such that the insertion portion 510 is adjacent to the motor magnetic sheet 700. However, depending on the case, even in the second coil element 500, that is, the insertion hole 310 is not inserted and disposed in the insertion portion 510, the second vane 400 can be moved up and down.

The focus of the object can be automatically adjusted by the elevation of the second blade 400 in which the lens is mounted, thereby making the image capturing more convenient.

One end of the load bearing spring (610, 620) is mounted on the first vane 200, and the other end is mounted on the second vane 400 to support the second vane 400 upward.

Specifically, as shown in FIG. 8, the other end of the above-described load bearing spring (610, 620) is divided into two from one end, and is constituted by a first load bearing spring 610 and a second load bearing spring 620.

As shown in Fig. 10, one end of the first load-bearing spring 610 is attached to the lower end of the support protrusion 234a, and the other end is divided into the lower end of the lift protrusion 410a.

Further, one end of the second load-bearing spring 620 is attached to the lower end of the support protrusion 234b, and the other end is divided into the lower end of the lift protrusion 410b.

The load bearing springs (610, 620) are conductors, and are used to electrically connect the round wire spring 800 and the second coil component 500 as will be described later.

Further, the above-described load bearing springs (610, 620) are made of an elastic metal material, so that the second vane 400 supports the first vane 200 upward.

As will be described later, when power is supplied to the second coil element 500, the load bearing springs (610, 620) are elastically deformed to move the second vane 400 up and down.

Further, after the second blade 400 is raised and lowered, if the power is cut off by the second coil element 500, the second blade 400 can be returned to the home position by the elastic restoring force of the load bearing spring (610, 620).

The motor magnet piece 700 is attached to the outer casing 100, that is, inside the casing 110, and is disposed outside the first vane 200.

As described above, the motor magnetic sheet 700 is disposed outside the first vane 200, and the upper portion thereof is inserted between the upper fixing projections 122, and the lower portion thereof is inserted between the lower fixing projections 132.

As shown in FIGS. 9 and 10, the motor magnetic sheet 700 is composed of four, and is adjacent to the first coil element 300 and the second coil element 500, respectively.

Specifically, the motor magnetic sheet 700 has a square shape and is composed of a first magnetic pole portion 710 and a second magnetic pole portion 720.

The first magnetic pole portion 710 is polarized in the direction of the second coil element 500 described above.

The second magnetic pole portion 720 is formed at an upper portion and a lower portion of the first magnetic pole portion 710, and is polarized in a direction opposite to a magnetic direction of the first magnetic pole portion 710.

More specifically, as shown in FIG. 10, the first magnetic pole portion 710 and the second coil component 500, that is, the direction disposed adjacent to the insertion portion 510 are S poles, and are disposed on the inner side surface of the casing 110. The direction is N pole.

Further, a direction in which the second magnetic pole portion 720 is disposed adjacent to the first coil element 300 is an N pole, and a direction in which the second magnetic pole portion 720 is disposed on an inner side surface of the casing 110 is an S pole.

Depending on the case, the magnetic pole directions of the first magnetic pole portion 710 and the second magnetic pole portion 720 may be arranged oppositely.

As shown in FIG. 12, since the first magnetic pole portion 710 and the second magnetic pole portion 720 are separated from each other, a magnetic field can be formed on the first coil element 300 and the second coil element 500, that is, around the insertion portion 510.

As shown in Fig. 12, the arrows indicate the direction and direction of the magnetic field, and the color of the arrows indicates the strength of the magnetic field.

As shown in FIGS. 10a and 10b, the vertical length L2 of the motor magnetic piece 700 is longer than the vertical length L3 of the first coil element 300.

Since the vertical length L2 of the motor magnet piece 700 is longer than the vertical length L3 of the first coil element 300, a sufficient magnetic field is generated around the first coil element 300 and the second coil element 500.

Further, the vertical length L4 of the first magnetic pole portion 710 is longer than the vertical pitch D3 of the insertion hole 310.

Unlike the embodiment of the present invention, when the upper and lower lengths L4 of the first magnetic pole portion 710 are shorter than the vertical pitch D3 of the insertion hole 310, the inner side of the first coil element 300 is in the inner direction, that is, in the direction of the insertion hole 310. The first magnetic pole portion 710 and the second magnetic pole portion 720 generate magnetic fields in different directions, so that it is difficult to horizontally move the first vane 200 in a specific direction.

In the embodiment of the present invention, the vertical length L4 of the first magnetic pole portion 710 is longer than the vertical distance D3 of the insertion hole 310, so that it is easy to horizontally move the first blade 200.

The small camera with the automatic focus adjustment and the hand shake correction device of the present invention is equipped with an automatic focus adjustment and a hand shake correction device A, and is provided with a housing 100, an image sensor (not shown), a round wire spring 800, and A control unit (not shown) is formed.

As described above, the autofocus and hand shake correction device A is installed inside the casing 100.

The casing 100 is a hexahedron and is opened up and down. The incident light is passed through a lens (not shown) disposed inside the second blade 400.

The outer casing 100 is composed of a casing 110, a spacer 120, and a hub 130.

As shown in FIG. 5, the upper portion of the casing 110 is vertically penetrated to form a first transmissive area 111, and incident light transmitted through the lens of the second vane 400 is passed through, and covers the spacer 120, first. The blade 200 and the second blade 400 have their lower ends fixedly mounted on the hub 130.

The spacer 120 is a quadrangular plate, and is attached to the inner side of the casing 110, and the first blade 200 and the second blade 400 are disposed at a lower portion thereof.

Further, on the spacer 120, a circular second transmissive region 121 communicating with the first transmissive region 111 is formed.

As shown in FIG. 5 or FIG. 6, an upper fixing protrusion 122 is formed to protrude from a lower portion of the spacer 120.

The upper fixing projections 122 are disposed apart from each other, and an upper portion of the motor magnetic piece 700 is inserted therein.

Further, the above-described round wire spring 800 is fixedly attached to the above-mentioned spacer 120.

The hub 130 is a quadrangular plate, and the housing 110 is mounted on the upper portion thereof.

Further, on the hub 130, a third transmissive area 131 is formed to penetrate incident light passing through the lens.

Further, the first vane 200 and the second vane 400 are disposed on the upper portion of the hub 130.

Specifically, the lower end of the casing 110 is fixedly attached to the upper portion of the hub 130, so that the casing 110 covers the first vane 200 and the second vane 400.

Further, as shown in FIGS. 5 and 6, the lower fixing protrusion 132 is formed to protrude from the upper portion of the hub 130.

The lower fixing protrusions 132 are disposed apart from each other, and are respectively formed at a lower portion of the upper fixing protrusion 122, and a lower portion of the motor magnetic piece 700 is inserted between the lower fixing protrusions 132.

As shown in FIG. 5, a seating groove 133 is provided in each of the angular portions of the upper portion of the hub 130.

On the above-described seating groove 133, a protruding portion 220 formed on the first vane 200 can be inserted and disposed.

An image sensor (not shown) is disposed at a lower portion of the hub 130.

The image sensor is disposed at a lower portion of the third transmissive area 131, and is capable of capturing an image of a subject passing through the lens and the third transmissive area 131.

Further, a control unit (not shown) is attached to the casing 100.

The control unit (not shown) applies a power source to the first coil element 300 and the second coil element 500.

Further, a sensor (not shown) that senses the positions of the first coil element 300 and the second coil element 500 is mounted inside the casing 100.

The sensor measures a relative position change value of the first coil element 300 and the second coil element 500, and the control unit applies a power source to the first coil element 300 or the second coil element 500 based on the measured value of the sensor.

The above-described round wire spring 800 causes the autofocusing and hand shake correction device A to be mounted inside the casing 100 and float horizontally.

The upper end of the round wire spring 800 is attached to the outer casing 100, and the lower end thereof is attached to the first vane 200.

Specifically, the round wire spring 800 has a linear shape and is vertically disposed inside the outer casing 100.

As shown in FIGS. 5, 6, and 9, the round wire spring 800 is composed of eight, and each pair is disposed diagonally in the outer casing 100, that is, inside the corner of the casing 110.

The round wire spring 800 is composed of an outer round wire spring 801 and an inner round wire spring 802.

The upper end of the outer round wire spring 801 is fixedly mounted on the spacer 120, and the lower end thereof is inserted and mounted on the first mounting groove 221.

That is, the outer round spring 801 is disposed between the casing 110 and the adhesive tape 210.

The upper end of the inner circular spring 802 is fixedly mounted on the spacer 120, and the lower end thereof is inserted and mounted on the second mounting groove 232.

That is, the inner circular spring 802 is disposed between the adhesive tape 210 and the connecting portion 520.

Further, the round wire spring 800 is composed of a current-carrying conductor, and the first coil element 300 and the second coil element 500 are connected, and the power source applied to the control unit is transmitted to the first coil element 300 and On the second coil element 500.

Specifically, one of the upper ends of the round wire spring 800 is connected to the control portion, and the lower end thereof is connected to one end of the first coil element 300. Therefore, a power source can be applied to the first coil element 300.

As described above, the other end of the first coil element 300a is electrically connected to one end of the other first coil element 300b disposed in the mutually opposing direction, and the other end of the first coil element 300b is connected to the other round wire spring 800. The lower end of the above-described round wire spring 800 and the upper end of the above-mentioned round wire spring 800 to which the first coil element 300b is connected are connected to the control portion, whereby one circuit can be formed.

Further, the other first coil elements (300c, 300d) arranged to face each other are also formed in the same manner as the above-described method, and another circuit can be formed to receive power from the control unit.

Therefore, the above four round wire springs 800 are all connected to the first coil element 300 described above.

Further, the upper end of the round wire spring 800 of any one of the other four round wire springs 800 is connected to the control portion, and the lower end thereof is connected to one end of the first load-bearing spring 610 attached to the support protrusion 234a.

Further, the other end of the first load-bearing spring 610 is attached to the elevating projection 410a, and is connected to one end of the second coil element 500.

Further, the other end of the second coil element 500 is connected to the other end of the second load-bearing spring 620 mounted on the lifting protrusion 410b, and one end of the second load-bearing spring 620 is connected to any one of the other round springs 800. The lower end of the above-described round wire spring 800 is connected, and the upper end of the above-mentioned round wire spring 800 to which the second coil element 500 is connected is connected to the control portion, whereby one circuit can be formed.

The operation of the above-described six round wire springs 800 has been described above, and the other two round wire springs 800 play an auxiliary role in order to horizontally float the first blade 200 and the second blade 400 inside the casing 100.

Next, the operation method of the small-sized camera equipped with the automatic focus adjustment and the hand-shake correction device of the present invention will be described in detail.

Figure 13 is a diagram showing the first blade horizontal movement state shown in Figure 11; Figure 14 is a second blade vertical movement state diagram shown in Figure 10.

As shown in FIG. 11, before the power is supplied to the first coil element 300 and the second coil element 500, the first vane 200 is disposed in a floating state inside the casing 100 by the round wire spring 800.

Further, as shown in FIG. 10a, the second vane 400 is disposed inside the first vane 200 in a state of being supported upward by a load bearing spring (610, 620).

As shown in FIG. 13, the control unit (not shown) that receives the signal from the sensor (not shown) passes through the first coil when power is supplied to one of the pair of first coil elements 300 arranged in pairs. The first electromagnetic field generated on the element 300 interacts with the magnetic field generated on the motor magnet piece 700 to move the first vane 200 in the horizontal direction.

That is, the first blade 200 and the second blade 400 move together to the right side.

At this time, the round wire spring 800 is elastically deformed to the right side.

As shown in FIG. 13, the inner circular spring 802 and the other outer circular spring 801 (not shown) are also elastically deformed.

Further, when the power is turned off in the first coil element 300, the first blade 200 and the second blade 400 can be returned to the original position by the elastic restoring force of the round wire spring 800.

Further, when the current direction applied to the first coil element 300 is changed by the control unit, the first vane 200 and the second vane 400 are moved in the left direction.

As described above, when the power supply is applied to the other pair of first coil elements 300 by the control unit, the first vane 200 and the second vane 400 can be horizontally moved in the front-rear direction inside the casing 100 in accordance with the current direction.

As described above, the control unit can move the first and second blades 200 and the second blade 400 horizontally in the front-rear and left-right directions, and move the lens attached to the second blade 400 together to correct the camera.

As shown in FIG. 14, the control unit (not shown) that receives the signal from the sensor (not shown) passes through the second coil element 500, that is, the above-described insertion, when power is supplied to the second coil element 500. The second electromagnetic field generated on the portion 510 and the connecting portion 520 and the magnetic field generated on the motor magnetic sheet 700 interact with each other to raise the second vane 400 inside the first vane 200.

At this time, the above-mentioned load bearing spring is elastically deformed upward.

By the rise of the second blade 400, the lens mounted inside the second blade 400 is also raised together to adjust the focus of the subject.

Further, when the current direction applied to the second coil element 500 is changed by the control unit, the second blade 400 is lowered.

Further, when the power is turned off in the second coil element 500, the second blade 400 can be returned to the home position by the elastic restoring force of the load bearing spring.

However, the camera automatic focus adjustment, the hand-shake correction device, and the small-sized camera that mounts the device are not limited to the above embodiments, and it is possible for those skilled in the art to make various modifications and changes without departing from the spirit of the invention.

[Industrial use possibilities]

Like the camera on a portable terminal, the present invention is also applicable to a small camera that utilizes the same motor magnetic sheet to drive the hand shake correction and focus adjustment, thereby reducing the number of components, simplifying the structure, reducing the volume, and easily correcting the hand tremor and Adjust the focus.

100. . . shell

110. . . case

111. . . First transmission zone

120. . . bead

121. . . Second transmission zone

122. . . Upper fixed protrusion

130. . . Hub

131. . . Third transmission zone

132. . . Lower fixing protrusion

133. . . Placement slot

200. . . First blade

210. . . Adhesive tape

211. . . Through hole

220. . . Protruding

221. . . First mounting slot

230. . . Inner panel

231. . . Open hole

232. . . Second mounting slot

233. . . Lifting slot

234. . . Support protrusion

300. . . First coil component

310. . . Insertion hole

400. . . Second blade

401. . . Lens hole

410. . . Lifting protrusion

420. . . Coil slot

500. . . Second coil component

510. . . Insertion

520. . . Connection

610,620. . . Bearing spring

700. . . Motor disk

710. . . First magnetic pole

720. . . Second magnetic pole

800. . . Round spring

801. . . Outer round spring

802. . . Inner round spring

Figure 1 is a perspective view showing an image capturing apparatus having a hand-shake correction function in the past;

2 is an exploded perspective view of an image capturing apparatus having a hand-shake correction function in the past;

Figure 3 shows an exploded perspective view of a portion of Figure 2A;

4 is a perspective view of a small camera with an automatic focus adjustment and a hand shake correction device according to an embodiment of the present invention;

FIG. 5 is a perspective exploded perspective view of a small camera with an auto focus adjustment and a hand shake correction device according to an embodiment of the present invention; FIG.

6 is an exploded perspective view showing another direction of a small camera equipped with an automatic focus adjustment and a hand shake correction device according to an embodiment of the present invention;

7 is a view showing a state of separation of a motor magnetic piece of an auto-focusing and hand-shake correction device according to an embodiment of the present invention;

8 is an exploded perspective view of the auto focus and hand shake correction device according to an embodiment of the present invention;

Figure 9 is a cross-sectional view according to Figure 4 (B-B);

Figure 10 is a cross-sectional view according to Figure 4 (C-C);

Figure 11 is a cross-sectional view according to Figure 4 (D-D);

Figure 12 is a schematic view showing the magnetic field formed around the motor magnetic sheet of the embodiment of the present invention;

Figure 13 is a diagram showing the first blade horizontal movement state according to Figure 11;

Figure 14 is a diagram showing the second blade vertical movement state shown in Figure 10.

100‧‧‧ Shell

133‧‧‧Setting trough

300‧‧‧First coil component

310‧‧‧ insertion hole

400‧‧‧second blade

410‧‧‧ Lifting protrusion

Claims (11)

A small camera equipped with an automatic focus adjustment and a hand shake correction device, wherein the small camera of the automatic focus adjustment and hand shake correction device comprises: an upper and lower outer casing; and a horizontally movable inner portion mounted on the outer casing a blade; and a first coil component mounted on an outer side of the first blade; and a lens disposed inside the first blade, a second blade movable up and down; and a central axis of the second blade a second coil element mounted on the outer side of the second blade; and one end mounted on the first blade, the other end mounted on the second blade, and supporting the load bearing spring of the second blade upward; and mounting a motor magnetic piece disposed on an inner side surface of the outer casing and disposed outside the first blade; and a round wire on which the upper end is mounted on the outer casing and the other end is mounted on the first blade to float the first blade a spring; a control unit that applies a power source to the first coil element and the second coil element; and a second portion disposed on the second blade And an image sensor capable of capturing an image of the subject through the lens; wherein the motor magnetic sheet includes: a first magnetic pole portion polarized in a direction of the second coil component; and an upper portion of the first magnetic pole portion and a second magnetic pole portion formed at a lower portion and polarized in a direction opposite to a magnetic polarity of the first magnetic pole portion; Further, a magnetic field is formed around the first coil element and the second coil element; and when the first coil element is supplied with power, the first electromagnetic field generated on the coil and the magnetic field generated on the motor magnet piece interact with each other And moving the first blade and the second blade together in a horizontal direction; when power is supplied to the second coil component, a second electromagnetic field generated on the coil and a magnetic field generated on the motor magnet piece interact with each other, so that The second vane moves up and down inside the first vane; and the outer casing is a hexahedron, and the round spring is composed of eight, and each pair is disposed diagonally inside the corner of the outer casing. A small camera having an automatic focus adjustment and a hand shake correction device according to the first aspect of the invention, wherein the first blade is square, and a mounting groove into which the round wire spring can be inserted is provided; a lower portion of the first blade protrudes outwardly to form a protruding portion, and an inner side plate is formed inward; the protruding portions are respectively formed at a water chest portion of the first blade; wherein the mounting groove includes: a first mounting groove formed in the protruding portion a second mounting groove formed on the inner side plate; the round wire spring includes: an upper end fixedly mounted on the outer casing, and a lower end inserted into an outer circular wire spring mounted on the first mounting groove; the upper end is fixedly mounted on the outer casing, The lower end is inserted into the inner round wire spring mounted on the second mounting groove. A small camera having an automatic focus adjustment and a hand shake correction device according to the first aspect of the invention, wherein the round springs are respectively connected to the first coil component and the second coil component, and are controlled by the control The power supply unit supplies power to the first coil element and the second coil element; the first coil element is composed of four, and is mounted on each outer surface of the first blade; and the first surface is disposed in an opposite direction The coil elements are electrically connected, and receive magnetic force in the same direction through the motor magnet piece when the power is supplied, and the round wire spring is elastically deformed to horizontally move the first blade and the second blade. A small camera including an automatic focus adjustment and a hand shake correction device according to a second aspect of the invention, wherein the inner side plate formed on the first blade is provided with a vertically extending lifting groove; and the second blade is The lower portion protrudes to form a lifting protrusion that can be inserted into the lifting slot; one end of the bearing spring is fixedly mounted on the lower portion of the first blade, and the other end is fixedly mounted on the lifting protrusion; when the second coil element is powered, the above In the second blade, the horizontal movement is blocked and moves up and down. A small camera including an automatic focus adjustment and a hand shake correction device according to the first aspect of the invention, wherein the outer casing includes: an upper portion disposed on the first blade and the second blade, and the circular wire is fixedly mounted a spring spacer; a hub disposed at a lower portion of the first blade and the second blade; and a case covering the spacer, the first blade and the second blade; and a spacer disposed at a lower portion of the spacer The upper fixing protrusions are inserted into the upper portion of the motor magnetic piece between the upper fixing protrusions; the lower fixing protrusions are formed to protrude from the upper portion of the hub, and the motor magnetic piece can be inserted between the lower fixing protrusions The lower part. A small camera equipped with an automatic focusing and hand tremor correction device, wherein the small camera of the automatic focusing and hand tremor correction device comprises: an upper and lower outer casing; and is mounted inside the outer casing to be horizontally movable, and a first vane having a through-hole that penetrates the inner and outer sides; a first coil element that is crimped around the through-hole and forms an insertion hole that can be connected to the through-hole, and is attached to the outer side of the first vane; and an inner portion a lens, a second blade mounted inside the first blade for moving up and down, and a second coil member centered on the second blade and mounted on the outside of the second blade; and one end mounted on The first blade is mounted on the second blade, and the bearing spring of the second blade is supported upward; and the motor magnetic piece is disposed on the inner side of the outer casing and disposed outside the first blade; And the upper end is mounted on the outer casing, and the other end is mounted on the first blade, so that the first blade floats And a control unit that applies a power source to the first coil element and the second coil element; and an image sensor that is disposed at a lower portion of the second blade to capture a subject image passing through the lens; The second coil component includes: an insertion portion disposed adjacent to the insertion hole and adjacent to the motor magnetic piece; and a connection portion between the adjacent insertion portions; When the first coil element is powered, the first electromagnetic field generated on the coil and the magnetic field generated on the motor magnet piece interact with each other to move the first blade and the second blade together in a horizontal direction; When the second coil element is powered, the second electromagnetic field generated on the coil interacts with the magnetic field generated on the motor magnet piece to move the second blade up and down inside the first blade; and the outer casing is six In the face body, the round springs are composed of eight, and each pair is disposed diagonally inside the corner of the outer casing. A small camera having an automatic focus adjustment and a hand shake correction device according to a sixth aspect of the invention, wherein the first blade has a square shape, and is provided with a mounting groove into which the round spring can be inserted; a lower portion of the first blade protrudes outwardly to form a protruding portion, and an inner side plate is formed inward; the protruding portions are respectively formed at a water chest portion of the first blade; wherein the mounting groove includes: a first mounting groove formed in the protruding portion a second mounting groove formed on the inner side plate; the round wire spring includes: an upper end fixedly mounted on the outer casing, and a lower end inserted into an outer circular wire spring mounted on the first mounting groove; the upper end is fixedly mounted on the outer casing, The lower end is inserted into the inner round wire spring mounted on the second mounting groove. A small camera having an automatic focus adjustment and a hand shake correction device according to a seventh aspect of the invention, wherein the round spring is connected to the first coil component and the second coil component, respectively, and is controlled by the control. a power supply to the first coil element and the second coil element; the first coil element is composed of four and is mounted on the first leaf The first coil elements disposed in opposite directions are electrically connected to each other, and the magnetic force is received in the same direction by the motor magnetic sheet during power supply, and the round spring can be elastically deformed, thereby making the first The blade and the second blade are horizontally moved. A small camera having an automatic focus adjustment and a hand shake correction device according to a seventh aspect of the invention, wherein the inner side plate formed on the first blade is provided with a vertically extending lifting groove; and the second blade is The lower portion protrudes to form a lifting protrusion that can be inserted into the lifting slot; one end of the bearing spring is fixedly mounted on the lower portion of the first blade, and the other end is fixedly mounted on the lifting protrusion; when the second coil element is powered, the above In the second blade, the horizontal movement is blocked and moves up and down. A small camera having an automatic focus adjustment and a hand shake correction device according to a sixth aspect of the invention, wherein the outer casing includes: an upper portion disposed on the first blade and the second blade, and the circular wire is fixedly mounted a spring spacer; a hub disposed at a lower portion of the first blade and the second blade; and a case covering the spacer, the first blade and the second blade; and a spacer disposed at a lower portion of the spacer The upper fixing protrusions are inserted into the upper portion of the motor magnetic piece between the upper fixing protrusions; the lower fixing protrusions are formed to protrude from the upper portion of the hub, and the motor magnetic piece can be inserted between the lower fixing protrusions The lower part. A small camera having an automatic focus adjustment and a hand shake correction device according to the seventh aspect of the patent application, wherein the first blade is mounted thereon An adhesive tape that protrudes upward is formed at each of the corner portions of the protruding portion; the through hole is formed between the adhesive tapes, and the first coil component is mounted thereon; wherein the through hole is open upward.