CN203275847U - Lens driving device with camera shake correction function - Google Patents
Lens driving device with camera shake correction function Download PDFInfo
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- CN203275847U CN203275847U CN 201320229070 CN201320229070U CN203275847U CN 203275847 U CN203275847 U CN 203275847U CN 201320229070 CN201320229070 CN 201320229070 CN 201320229070 U CN201320229070 U CN 201320229070U CN 203275847 U CN203275847 U CN 203275847U
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Abstract
The utility model provides a lens driving device with camera shake correction function. The assembly operationality of the lens driving device is better than that of the existing lens driving device which is assembled by using super fine suspension wires. The lens driving device with camera shake correction function comprises a driving unit for driving an automatic focusing drive part to move in a displacement way, and is characterized in that: the driving unit comprises a fixation body, a plurality of plate springs for connecting the fixation body to the automatic focusing drive part and a magnetic drive mechanism for driving the automatic focusing drive part to move through electric magnetic force, wherein the plate spring comprises a first elastic part with elasticity on one direction and a second elastic part with elasticity on the other direction approximately orthogonal to the direction of the first elastic part, one side of the first elastic part is connected with one side of the second elastic part, and moreover, one of the other side of the first elastic part and the other side of the second elastic part is connected with the fixation body, and the other one of the other side of the first elastic part and the other side of the second elastic part is connected with the automatic focusing drive part.
Description
Technical field
The utility model relates to the lens driver that uses in the miniature camera that carries with the portable equipment of video camera etc., particularly band is useful on the hand that produces when taking and trembles the lens driver that hand that (vibration) revise is trembled debugging functions.
Background technology
In recent years, the situation that is equipped with miniature camera in the portable equipment take portable phone as representative becomes general.And, in order to improve the image quality of being taken by this miniature camera, attempt that repeatedly the hand that general video camera uses is trembled correction mechanism and be used for this miniature camera.In this hand is trembled correction mechanism, the whole bag of tricks is arranged, such as the method that lens are moved, make the method that automatic focusing drive division moves or make the mobile method of imaging apparatus (such as CCD:Charge Coupled Device) etc.
In above-mentioned hand was trembled correction mechanism, as the method that automatic focusing drive division is moved, in patent documentation 1, as shown in Figure 9, the hand that has proposed to use in miniature camera that portable phone uses was trembled correcting device 910.Hand shown in Figure 9 is trembled correcting device 910 and constituted, and possesses: focusing with lens driver (drive division of automatically focusing) 920, makes lens barrel 912 move along optical axis automatically; Permanent magnet 928 is configured in automatic focusing with on the magnetic receiver 930 of lens driver 920; Hand is trembled and is revised with coil 918, is disposed at opposed to each other in radome 942 with permanent magnet 928; Base 914 configures discretely in the bottom surface sections side of automatically focusing with lens driver 920; And 4 messenger wires 916, be equipped on four jiaos of sides of base 914.
And, automatically focusing with lens driver 920 by 4 messenger wires 916 supporting to the mode that first direction (X) and second direction (Y) are shaken, therefore tremble by the hand that is arranged at radome 942 and revise the electromagnetic force that produces with coil 918 and permanent magnet 928, automatic focusing is moved with lens driver 920.Thus, when automatically focusing is with the position skew of lens driver 920 due to vibration, can make automatic focusing return to original position with lens driver 920, can be when taking the hand of generation tremble (vibration) and revise.
Patent documentation 1: TOHKEMY 2011-065140 communique
Yet, in past case, supporting automatic focusing in the mode that can shake on first direction (X) and second direction (Y) is very thin lines (φ 0.1mm degree) with the messenger wire 916 of lens driver 920, therefore existence is to the mounting hole of base 914, to the insertion non-constant of automatic focusing with the mounting hole of lens driver 920, the problem that spends time when assembling.
The utility model content
The utility model is used for solving above-mentioned problem, and its purpose is, provide a kind of assembleability good tremble the lens driver of debugging functions with hand.
In order to solve this problem, the lens driver of trembling debugging functions with hand of the technical solution of the utility model 1 is to possess: the drive division of automatically focusing, and the lens carrier that allows to support of lens moves along optical axis direction; And driver element, above-mentioned automatic focusing drive division is moved in the mode of the direction top offset that can intersect at the optical axis with said lens; Above-mentioned driver element has: fixed body is provided in the outside of above-mentioned automatic focusing drive division; A plurality of leaf springs, with above-mentioned fixed body be connected automatic focusing drive division and connect; And the magnetic driving mechanism, by electromagnetic force, above-mentioned automatic focusing drive division is moved; Above-mentioned leaf spring has: the first elastic has elasticity in one direction; And second elastic, roughly have elasticity on another direction of quadrature with an above-mentioned direction; One distolateral connection of one distolateral and above-mentioned the second elastic of above-mentioned the first elastic, and another of above-mentioned the first elastic distolateral be connected another distolateral one party of the second elastic and be connected with above-mentioned fixed body, another of above-mentioned the first elastic distolateral be connected another certain distolateral the opposing party of the second elastic and be connected with above-mentioned automatic focusing drive division, above-mentioned leaf spring supports above-mentioned automatic focusing drive division in the mode that can shake.
In addition, the lens driver of trembling debugging functions with hand of the technical solution of the utility model 2 is characterised in that, above-mentioned leaf spring set into, the plate face of above-mentioned the first elastic and above-mentioned the second elastic is parallel with above-mentioned optical axis direction.
In addition, the lens driver of trembling debugging functions with hand of the technical solution of the utility model 3 is characterised in that, above-mentioned leaf spring has above-mentioned one distolateral the first linking part of giving prominence to above-mentioned another direction extension from above-mentioned the first elastic, and have from above-mentioned one of above-mentioned the second elastic and distolaterally extend the second outstanding linking part to above-mentioned direction, above-mentioned the first linking part be connected the second linking part and connect.
In addition, the lens driver of trembling debugging functions with hand of the technical solution of the utility model 4 is characterised in that, a plurality of above-mentioned leaf springs are even number.
In addition, the lens driver of trembling debugging functions with hand of the technical solution of the utility model 5 is characterised in that, above-mentioned a plurality of leaf springs are, clip above-mentioned optical axis and opposed leaf spring each other centered by above-mentioned optical axis and be provided in impartial position.
In addition, the lens driver of trembling debugging functions with hand of the technical solution of the utility model 6 is characterised in that, above-mentioned leaf spring is four.
In addition, the lens driver of trembling debugging functions with hand of the technical solution of the utility model 7 is characterised in that, above-mentioned four leaf springs are provided in from the equidistant position of above-mentioned optical axis.
in addition, the lens driver of trembling debugging functions with hand of the technical solution of the utility model 8 is characterised in that, above-mentioned automatic focusing drive division possesses a plurality of the first magnet in the position on every side that surrounds the said lens support, the first coil, the first yoke, by the electromagnetic force that produces to above-mentioned First Line circle energising, the said lens support is moved along optical axis direction, the position of above-mentioned magnetic driving mechanism between interior all sides of the outer circumferential side of above-mentioned automatic focusing drive division and above-mentioned fixed body possesses a plurality of the second magnet, a plurality of the second yokes, a plurality of the second coils, by the electromagnetic force that produces to above-mentioned the second coil electricity, above-mentioned automatic focusing drive division is moved to the direction of intersecting with above-mentioned optical axis.
In addition, the lens driver of trembling debugging functions with hand of the technical solution of the utility model 9 is characterised in that, at least one of above-mentioned leaf spring is electrically connected to an end of above-mentioned the first coil, and another other end with above-mentioned the first coil at least of above-mentioned leaf spring is electrically connected to.
The effect of utility model:
Utility model according to technical scheme 1, the lens driver of trembling debugging functions with hand of the present utility model, by have flexible leaf spring on a direction and another direction, automatically the drive division of focusing is supported for the structure that can shake, therefore can use fixed body, leaf spring and magnetic driving mechanism, automatic focusing drive division is moved to a direction and another direction.Therefore, even tremble (vibration) and the drive division of automatically focusing moves due to the hand that produces when taking, automatic focusing drive division is moved to a direction and another direction in the mode of returning to original position, can revise hand and tremble (vibration).Thus, compare with the situation of the superfine messenger wire 916 of the past case of using in order to realize hand to tremble debugging functions, use the good leaf spring of operability, the operability when therefore assembling is good.Thus, can provide assembleability good tremble the lens driver of debugging functions with hand.
Utility model according to technical scheme 2, the lens driver of trembling debugging functions with hand of the present utility model is, therefore the first elastic of leaf spring and the plate face of the second elastic are set as parallel with optical axis direction, and the first elastic and the second elastic are with respect to the direction vertical with optical axis direction, in other words move reliably with respect to a direction and another direction.Therefore, when automatic focusing drive division being moved revise the hand that produces when taking to tremble (vibration), can not be offset on Z-direction (optical axis direction) and automatic focusing drive division is moved on a direction and another direction.Thus, can suppress and imaging apparatus between the deviation of distance, can carry out reliable hand and tremble correction.Thus, can provide can obtain good image quality tremble the lens driver of debugging functions with hand.
Utility model according to technical scheme 3, the lens driver of trembling debugging functions with hand of the present utility model is, the first elastic of leaf spring and the second elastic, via extending the first outstanding linking part to another direction and being connected that second an outstanding linking part of direction extension connects, therefore connect the first elastic and the second elastic by the linking part of overlooking as L word shape, the first elastic and the second elastic produce elasticity well with respect to a direction and another direction balance.Thus, when automatic focusing drive division being moved revise the hand that produces when taking to tremble (vibration), can not be offset on Z-direction (optical axis direction) and automatic focusing drive division is moved on a direction and another direction.
According to the utility model of technical scheme 4, the lens driver of trembling debugging functions with hand of the present utility model is, leaf spring is even number, therefore can respectively distribute same number respectively on a direction and another direction and sets.Thus, with respect to a direction and another direction can make automatic focusing drive division more balance well, move reliably, can carry out more reliably hand and tremble correction.
Utility model according to technical scheme 5, the lens driver of trembling debugging functions with hand of the present utility model is, leaf spring is provided in overlooking centered by optical axis and has all on equal angular position, and more balance is well, move reliably therefore can to make automatic focusing drive division with respect to a direction and another direction.Thus, can carry out more reliably hand and tremble correction.
According to the utility model of technical scheme 6, the lens driver of trembling debugging functions with hand of the present utility model is that leaf spring is four, therefore can by the number of irreducible minimum, respectively set respectively 2 in a direction and another direction.Thus, with respect to a direction and another direction can make automatic focusing drive division further balance well, move reliably, can carry out more reliably hand and tremble correction.
According to the utility model of technical scheme 7, the lens driver of trembling debugging functions with hand of the present utility model is that it is on equidistant position that four leaf springs are provided in from optical axis, therefore respectively sets respectively 2 in a direction and another direction.Thus, with respect to a direction and another direction can make automatic focusing drive division further balance well, move more reliably, can further carry out reliably hand and tremble correction.
Utility model according to technical scheme 8, the lens driver of trembling debugging functions with hand of the present utility model is, automatically focusing drive division and magnetic driving mechanism are the driving methods that uses magnet, coil and yoke, therefore can lens carrier be moved by simple mechanism, and automatic focusing drive division is moved.Thus, can provide the small-sized lens driver of trembling debugging functions with hand.
Utility model according to technical scheme 9, at least one of leaf spring is electrically connected to an end of the first coil, another other end with the first coil at least of leaf spring is electrically connected to, and therefore leaf spring is connected with power supply, can be to the first coil electricity of movable automatic focusing drive division.Thus, leaf spring can be utilized as wiring member, not use the such other wiring plate of FPC, therefore can the qurer manufacturing tremble the lens driver of debugging functions with hand.
Thus, of the present utility model with hand tremble debugging functions lens driver can by assembleability good tremble the lens driver of debugging functions with hand.
Description of drawings
Fig. 1 be explanation the utility model the first embodiment tremble the stereographic map of the lens driver of debugging functions with hand.
Fig. 2 be explanation the utility model the first embodiment tremble the figure of the lens driver of debugging functions with hand, Fig. 2 (a) is the vertical view of observing from Z1 side shown in Figure 1, Fig. 2 (b) is the upward view of observing from Z2 side shown in Figure 1.
Fig. 3 be explanation the utility model the first embodiment tremble the exploded perspective view of the lens driver of debugging functions with hand.
Fig. 4 be the utility model the first embodiment tremble the exploded perspective view of automatic focusing drive division of the lens driver of debugging functions with hand.
Fig. 5 be explanation the utility model the first embodiment tremble the figure of automatic focusing drive division of the lens driver of debugging functions with hand, be the upward view of observing from Z2 side shown in Figure 4.
Fig. 6 be the utility model the first embodiment tremble the exploded perspective view of driver element of the lens driver of debugging functions with hand.
Fig. 7 be explanation the utility model the first embodiment tremble the figure of driver element of the lens driver of debugging functions with hand, Fig. 7 (a) is the vertical view of observing from Z1 side shown in Figure 6, Fig. 7 (b) is the upward view of observing from Z2 side shown in Figure 6.
Fig. 8 be the utility model the first embodiment tremble the exploded perspective view of leaf spring of the lens driver of debugging functions with hand.
Fig. 9 means that the hand of past case trembles the exploded perspective view of correcting device.
Description of reference numerals:
The F1 drive division of automatically focusing; The F12 lens carrier; F13 the first coil; F14 the first yoke; F15 the first magnet; The R2 driver element; R23, R23A, R23B the second coil; R24, R24A, R24B the second yoke; R25 the second magnet; The R26 fixed body; The R27 leaf spring; R27a the first elastic; R27b the second elastic; R27i the first linking part; R27j the second linking part; M9 magnetic driving mechanism; The OA optical axis; 111 tremble the lens driver of debugging functions with hand
Embodiment
Below, with reference to accompanying drawing, embodiment of the present utility model is elaborated.
［ the first embodiment ］
Fig. 1 be explanation the utility model the first embodiment tremble the stereographic map of the lens driver 111 of debugging functions with hand.Fig. 2 be explanation the utility model the first embodiment tremble the figure of the lens driver 111 of debugging functions with hand, Fig. 2 (a) is the vertical view of observing from Z1 side shown in Figure 1, Fig. 2 (b) is the upward view of observing from Z2 side shown in Figure 1.Fig. 3 be explanation the utility model the first embodiment tremble the exploded perspective view of the lens driver 111 of debugging functions with hand.
As shown in Figure 1 to Figure 3, the lens driver 111 of trembling debugging functions with hand of the first embodiment of the present utility model constitutes, and possess: the drive division F1 that automatically focuses makes lens carrier F12 move along optical axis direction; And driver element R2, make automatic focusing drive division F1 movablely mobile; When producing hand trembling (vibration) when taking, can make automatic focusing drive division F1 turn back to original position by driver element R2, can be when taking the hand of generation tremble (vibration) and revise.
At first, automatic focusing drive division F1 is described.Fig. 4 be the utility model the first embodiment tremble the exploded perspective view of automatic focusing drive division F1 of the lens driver 111 of debugging functions with hand.Fig. 5 be explanation the utility model the first embodiment tremble the figure of automatic focusing drive division F1 of the lens driver 111 of debugging functions with hand, be the upward view of observing from Z2 side shown in Figure 4.In addition, omitting for convenience of explanation base matrix F8 and lower spring (F16C, F16E) at Fig. 5.
As Fig. 4 and shown in Figure 5, automatically focusing drive division F1 constitutes, possess lens carrier F12, the first coil F13, the first yoke F14 and the first magnet F15, in addition, have spring F16, base matrix F8 and the top cover F9 supporting along the mode that optical axis direction moves with lens carrier F12.And, automatically focusing drive division F1 remains on not shown phacoid on lens carrier F12, and as Fig. 1 and shown in Figure 2, be contained in driver element R2, the driver element R2 that has accommodated automatic focusing drive division F1 is arranged on the substrate that is equipped with not shown imageing sensor.And, for imageing sensor, by from power supply to the electromagnetic force that the first coil F13 energising produces, make lens carrier F12 along optical axis direction (Z direction shown in Figure 1) movement, the focal length of the lens that lens carrier F12 is kept is adjusted.
To shown in Figure 5, lens carrier F12 has as Fig. 3: the cylinder F12s of section has circular outer peripheral face and inner peripheral surface; With flange part F12t, outstanding to radial outside from the outer peripheral face of the cylinder F12s of section lower end.Be formed with female threaded portion F12n on the inner peripheral surface of the cylinder F12s of section, not shown lens are installed on this female threaded portion F12n.In addition, be provided with the 4 coil support portion F12j of place on the outer peripheral face of the cylinder F12s of section, by coil support portion F12j from medial support the first coil F13.And, the inner peripheral surface of the first coil F13 by coil support portion F12j isotropically balance support well, therefore the first coil F13 is maintained on lens carrier F12 under the central shaft of the first coil F13 state consistent with the central shaft of lens carrier F12.Thus, easily make the central shaft of the lens that the female threaded portion F12n by lens carrier F12 keeps consistent with optical axis OA.
As extremely shown in Figure 5 in Fig. 3, the first coil F13 is, in the position on every side that surrounds lens carrier F12, wire is wound as roughly tetragonal tubular and forms with tubular shape, as mentioned above, by coil support portion F12j under the state of medial support, be fixed on the upper surface of flange part F12t in the mode on every side of surrounding the cylinder F12s of section.In addition, the first coil F13 compares with the cylinder F12s of section of lens carrier F12, form shortlyer on optical axis direction, under the first coil F13 is fixed on state on lens carrier F12, with the only about half of mode of exposing from the first coil F13 top on the cylinder F12s of the section top first coil F13 that reels.
To shown in Figure 5, the first yoke F14 is that in the position on every side that surrounds lens carrier F12, profile forms tetragonal ring-type, covers lens carrier F12 and the first coil F13, and engages with base matrix F8 as Fig. 3.In addition, the first yoke F14 has: the outer yoke F14A of outer wall; And interior yoke F14C, arrange continuously with the outer peripheral face of outer yoke F14A upper end, via flat upper surface portion F14t downwards (Z2 direction shown in Figure 4) extend configuration.Interior yoke F14C possesses four, sets on four jiaos etc. minutes ground, and is provided in the first magnet F15 described later and distinguishes opposed position.
As Fig. 4 and shown in Figure 5, the first magnet F15 surround lens carrier F12 around the position possess four, section shape is the shape of platform shape roughly.In addition, 4 the first magnet F15 are respectively being set along ring Zhou Fangxiang by the mode of outer yoke F14A and interior yoke F14C clamping, and four jiaos of the first yoke F14 etc. minutes are setting.
Spring F16 has diameter than the little opening of upper opening part of the first yoke F14, as shown in Figure 3, comprise: be provided in the first yoke F14 upper surface portion F14t upper spring F16A and put lower spring F16C and lower spring F16E between lens carrier F12 and base matrix F8, and with lens carrier F12 and each spring F16(F16A, F16C, F16E) engage, in lens carrier F12 movable mode on Z direction shown in Figure 3, lens carrier F12 is supported in the air.Although not shown, but lower spring F16C is electrically connected to one distolateral (the taking-up terminal F13a shown in Figure 5) of the first coil F13, and lower spring F16E is electrically connected to the first coil F13 another distolateral (taking-up terminal F13b shown in Figure 5), via this lower spring F16C and lower spring F16E, can be from the power supply energising and to the first coil F13 streaming current.
Base matrix F8 is formed by the synthetic resin material, and as shown in Figures 3 and 4, profile constitutes the plate-like shape of rectangle, is formed with circular opening F8k in central authorities.Though details is not shown, but the upper surface at base matrix F8 is provided with a plurality of teats of giving prominence to upward, the peristome that is arranged at respectively lower spring F16C and lower spring F16E engages with the teat of base matrix F8, and lower spring F16C and lower spring F16E are positioned on base matrix F8.In addition, although not shown, base matrix F8 and the first yoke F14 engage by engagement pin, and the first yoke F14 is positioned on base matrix F8.
In addition, by having used copper, iron or being embedded in base matrix F8 by insert molding as the terminal F7 that the sheet metal of the materials such as alloy of major component consists of with these, terminal F7 is electrically connected to the substrate that not shown imageing sensor has been installed respectively, can supply capability.And, although not shown, the side's of terminal F7 terminal F7C is electrically connected to lower spring F16C, and the opposing party's of terminal F7 terminal F7E is electrically connected to lower spring F16E, from this terminal F7C and terminal F7E via lower spring F16C and lower spring F16E, can be to the first coil F13 streaming current.
As Fig. 3 and shown in Figure 4, top cover F9 becomes the shape of rectangle that has the opening F9k of toroidal in central authorities, is mounted by covering the first yoke F14 via upper spring F16A.Like this, top cover F9, upper spring F16A, the first yoke F14, the first magnet F15, the first coil F13 and lens carrier F12, lower spring F16C and lower spring F16E, base matrix F8 install in accordance with the order from top to bottom, thus each parts be provided in coaxial on.
Next, driver element R2 is described.Fig. 6 be the utility model the first embodiment tremble the exploded perspective view of driver element R2 of the lens driver 111 of debugging functions with hand.Fig. 7 be explanation the utility model the first embodiment tremble the figure of driver element R2 of the lens driver 111 of debugging functions with hand, Fig. 7 (a) is the vertical view of observing from Z1 side shown in Figure 6, Fig. 7 (b) is the upward view of observing from Z2 side shown in Figure 6.Fig. 8 be the utility model the first embodiment tremble the exploded perspective view of leaf spring R27 of the lens driver 111 of debugging functions with hand.
As Fig. 1, Fig. 2, Fig. 3, Figure 6 and Figure 7, driver element R2 constitutes, and has: fixed body R26 is provided in the automatic focusing drive division F1 outside; Four leaf spring R27, with fixed body R26 be connected focusing drive division F1 and connect; And magnetic driving mechanism M9, by electromagnetic force, automatic focusing drive division F1 is moved.In addition, magnetic driving mechanism M9 constitutes, position between interior all sides of the outer circumferential side of automatic focusing drive division F1 and fixed body R26 possesses 4 groups of a pair of the second coil R23(R23A, R23B), 4 groups of a pair of the second yoke R24(R24A, R24B) and four the second magnet R25.And, by the electromagnetic force that produces to the second coil R23 energising from power supply, make automatic focusing drive division F1 mobile to a direction (X-direction, shown in Figure 7 X1 direction and X2 direction) and another direction (Y direction, shown in Figure 7 Y1 direction and Y2 direction), when the generation hand is trembled (vibration) when taking, make automatic focusing drive division F1 turn back to original position.
Fixed body R26 is made of the synthetic resin material, as Figure 6 and Figure 7, forms the shape of the frame shape of rectangle outward, as mentioned above, has the resettlement section R26s that accommodates automatic focusing drive division F1.In addition, on 4 faces of the sidewall of fixed body R26, inboard at fixed body R26, be provided with highlightedly laterally be used to the incorporating section R26n that takes in the second yoke R24 and the second magnet R25 from sidewall, and, in the inboard of fixed body R26, be provided with in the inwall side of fixed body R26 the released part R26p that 8 places have the pedestal R26d of section that puts the second coil R23.
As Fig. 6 and shown in Figure 7, the second coil R23 of magnetic driving mechanism M9 is that as described above, the position on every side surrounding the drive division F1 that automatically focuses respectively sets 2 (R23A, R23B) opposed to each other with each limit, is equipped with altogether 8.In addition, the second coil R23 is wound as the wire of copper etc. roughly rectangular tubular and forms with tubular shape, as mentioned above, puts on the pedestal R26d of section of fixed body R26 and in being housed in released part R26p.In addition, although details is not shown, the second coil R23 is electrically connected to the substrate that not shown imageing sensor has been installed via taking out terminal (R23s, R23t), can supply capability.
As Fig. 6 and shown in Figure 7, the second yoke R24 of magnetic driving mechanism M9 is, as described above, surround focusing drive division F1 automatically around the position, be equipped with 4 groups with a pair of opposed the second yoke R24A and the opposed mode of the second yoke R24B and each limit, be equipped with altogether 8.In addition, the profile of the second yoke R24 forms tetragonal tabular, the second yoke R24A and second yoke R24B clamping the second magnet R25 and set.And the position between the position adjacent with the second magnet R25 and the second yoke R24A and the second yoke R24B contains the one-sided winding part of the second coil R23.In addition, the second yoke R24B is fixed on the outer yoke F14A of automatic focusing drive division F1.In other words, constitute the second yoke R24A, the second magnet R25 and the second yoke R24B and be fixed on automatic focusing drive division F1, and can become one with automatic focusing drive division F1 and movable.
The second magnet R25 of magnetic driving mechanism M9 is, as Fig. 6 and shown in Figure 7, as mentioned above, surround focusing drive division F1 automatically around the position, be equipped with opposed to each other four with each limit, and as mentioned above, by the second yoke R24A and the second yoke R24B clamping.In addition, the section shape of the second magnet R25 is for rectangle roughly and become tabular shape, and the one side side is the N utmost point, and the opposing face side is the S utmost point.
The magnetic driving mechanism M9 that so consists of constitutes, by from power supply to the electromagnetic force that the second coil R23 energising produces, make automatic focusing drive division F1 to a direction (X-direction, shown in Figure 7 X1 direction and X2 direction) and another direction (Y direction, shown in Figure 7 Y1 direction and Y2 direction) movably.In addition, the magnetic driving mechanism M9 of the utility model the first embodiment is, in the magnetic cell that is consisted of by two the second coil R23A and the second coil R23B, two the second yoke R24A and the second yoke R24B, the second magnet R25, two of arranged opposite magnetic cells make the automatic focusing drive division F1 can be movable on X-direction (direction) respectively, another two magnetic cells make the mode that automatic focusing drive division F1 can be movable on Y direction (another direction), set the sense of current that flows in the second coil R23.
As Fig. 1 and shown in Figure 2, leaf spring R27 surround focusing drive division F1 automatically around the position and four jiaos of fixed body R26 inboard respectively set respectively one, and as mentioned above, with fixed body R26 be connected the drive division F1 connection of focusing.This fixed body R26 and the drive division F1 that automatically focuses are connected to, when assembling, after the resettlement section R26s to fixed body R26 has accommodated automatic focusing drive division F1, four leaf spring R27 are inserted and set from upper side (Z1 side shown in Figure 1), and undertaken by not shown scolding tin or bonding agent etc.More particularly, as shown in Fig. 1 and Fig. 2 (a), an end R27t and the fixed body R26 of leaf spring R27 are fixed in 2 positions at diagonal angle, the other end R27s and the fixed body R26 of leaf spring R27 are fixed in 2 positions at diagonal angle, the end R27t of leaf spring R27 and the drive division F1 that automatically focuses are fixed in 2 positions at diagonal angle, the other end R27s of leaf spring R27 and the drive division F1 that automatically focuses are fixed in 2 positions at diagonal angle, and, the other end R27s and the fixed body R26 of leaf spring R27 are fixed 2 positions, easily realize thus.Thus, use like that the situation of superfine messenger wire 916 to compare with past case 1, the operability during assembling is good.In addition, use the leaf spring R27 that has rigidity than superfine messenger wire 916, even therefore when being subject to certain and impacting, also can support securely automatic focusing drive division F1.
In addition, to shown in Figure 8, leaf spring R27 constitutes, and has as Fig. 6: the first elastic R27a has elasticity on a direction (X-direction, shown in Figure 8 X1 direction or X2 direction); The first linking part R27i distolaterally extends to another direction (Y direction, shown in Figure 8 Y1 direction or Y2 direction) from one of the first elastic R27a; The second elastic R27b has elasticity on Y direction (another direction); And the second linking part R27j, distolaterally extend to X-direction (direction) from one of the second elastic R27b; The first linking part R27i be connected linking part R27j and connect.Thus, in leaf spring R27, the first elastic R27a one distolateral be connected elastic R27b one distolateral via the first linking part R27i be connected linking part R27j and connect, be formed on X-direction (direction) and Y direction (another direction) and have flexible spring part.This leaf spring R27 is by implementing bending machining and can easily make the tabular flexible sheet metal that has.
Then, when this leaf spring of assembling R27, one group in leaf spring R27 is, another the distolateral end R27t that is in the first elastic R27a is connected with fixed body R26, and being in another distolateral the other end R27s of the second elastic R27b is connected with the drive division F1 that automatically focuses, another group of leaf spring R27 is, another the distolateral end R27t that is in the first elastic R27a is connected with focusing drive division F1 automatically, and another the distolateral the other end R27s that is in the second elastic R27b is connected with fixed body R26.So, by have flexible leaf spring R27 on X-direction (direction) and Y direction (another direction), the drive division F1 that will automatically focus can joltily support, therefore use fixed body R26, leaf spring R27 and magnetic driving mechanism M9, can make automatic focusing drive division F1 upper mobile in X-direction (direction) and Y direction (another direction).Thus, even because the hand of the generation when taking is trembled (vibration) and the drive division F1 that automatically focuses moves, also can make automatic focusing drive division F1 upper mobile in X-direction (direction) and Y direction (another direction), returning to original position, can the opponent tremble (vibration) and revise.
And, as shown in Fig. 7 (a), the first elastic R27a be connected elastic R27b via at upper the first linking part R27i that extends of Y direction (another direction) and upper the second linking part R27j that extends of the X-direction that is connected (direction) and connect, therefore when overlooking the first elastic R27a be connected the linking part of elastic R27b by L word shape and connect, the first elastic R27a and the second elastic R27b have elasticity well in X-direction (direction) and the upper balance of Y direction (another direction).Thus, trembling (vibration) when revising by making automatic focusing drive division F1 move the hand that produces when taking, can not be offset on Z-direction (optical axis direction) and on X-direction (direction) and Y direction (another direction), automatic focusing drive division F1 is moved more reliably.
In addition, when this leaf spring R27 was assembled, the plate face of the first elastic R27a and the second elastic R27b formed and sets in the mode parallel with optical axis direction (Z-direction, shown in Figure 3 Z1 direction or Z2 direction).Thus, the first elastic R27a and the second elastic R27b in the direction vertical with optical axis direction, be to move reliably on X-direction (direction) and Y direction (another direction).Therefore, trembling (vibration) when revising by making automatic focusing drive division F1 move the hand that produces when taking, can not be offset on Z-direction (optical axis direction) and on X-direction (direction) and Y direction (another direction), automatic focusing drive division F1 is moved more reliably.Thus, can suppress from the deviation of the distance of imaging apparatus, can carry out reliable hand and tremble correction.Thus, can provide a kind of obtain good image quality tremble the lens driver 111 of debugging functions with hand.
In addition, the leaf spring R27 that trembles the lens driver 111 of debugging functions with hand of the utility model the first embodiment is as shown in Figure 8,4 to be made with identical shape.Thus, and make difform situation with 4 and compare, can reduce the manufacturing cost of leaf spring R27.
In addition, a plurality of leaf spring R27 that tremble the lens driver 111 of debugging functions with hand of the utility model the first embodiment are, as Fig. 1 to Fig. 3 and shown in Figure 7, clip optical axis OA and opposed leaf spring R27 each other centered by optical axis OA and be provided on impartial position.And four leaf spring R27 are configured in from the equidistant position of optical axis OA.
Thus, can make automatic focusing drive division F1 balance well, move reliably on X-direction (direction) and Y direction (another direction).And, can respectively set equably 2 respectively on X-direction (direction) and Y direction (another direction), can make the further balance of automatic focusing drive division F1 well, move more reliably on X-direction (direction) and Y direction (another direction).Thus, can carry out reliably hand and tremble correction.
In addition, although not shown, at least one of a plurality of leaf spring R27 of trembling the lens driver 111 of debugging functions with hand of the utility model the first embodiment is electrically connected to the end of the first coil F13, and is connected with power supply.In addition, at least one of other leaf springs R27 is electrically connected to the other end of the first coil F13, and is connected with power supply.Thus, from the leaf spring R27 that is connected with power supply, can be to the first coil F13 energising of movable automatic focusing drive division F1.Thus, leaf spring R27 can be utilized as wiring part, not use other such wiring plates of FPC, therefore can the qurer manufacturing tremble the lens driver 111 of debugging functions with hand.
In addition, the utility model is not limited to above-mentioned embodiment, for example also can following such distortion and implement, and these embodiments also belong to technical scope of the present utility model.
＜variation 1＞
In the above-described first embodiment, a plurality of leaf spring R27 are even number, but are not limited to even number, for example also can be the odd number of 5,7.
＜variation 2＞
In the above-described first embodiment, leaf spring R27 is four, but is not limited to four, for example also can be 6,8.
＜variation 3＞
In the above-described first embodiment, preferably constitute four leaf spring R27 and be provided on optical axis OA equidistant position, but according to the difference of the outer shape of automatic focusing drive division F1, not necessarily need to be provided on optical axis OA equidistant position.
The utility model is not limited to above-mentioned embodiment, in the scope that does not break away from the purpose of this utility model, can suitably change.
Claims (9)
1. lens driver of trembling debugging functions with hand is characterized in that possessing:
Automatic focusing drive division, the lens carrier that allows to support of lens moves along optical axis direction; And
Driver element makes above-mentioned automatic focusing drive division move in the mode of the direction top offset that can intersect at the optical axis with said lens;
Above-mentioned driver element has:
Fixed body is provided in the outside of above-mentioned automatic focusing drive division;
A plurality of leaf springs, with above-mentioned fixed body be connected automatic focusing drive division and connect; And
The magnetic driving mechanism moves above-mentioned automatic focusing drive division by electromagnetic force;
Above-mentioned leaf spring has:
The first elastic has elasticity in one direction; And
The second elastic roughly has elasticity on another direction of quadrature with an above-mentioned direction;
One distolateral connection of one distolateral and above-mentioned the second elastic of above-mentioned the first elastic, and another of above-mentioned the first elastic distolateral be connected another distolateral one party of the second elastic and be connected with above-mentioned fixed body, another of above-mentioned the first elastic distolateral be connected another certain distolateral the opposing party of the second elastic and be connected with above-mentioned automatic focusing drive division, above-mentioned leaf spring supports above-mentioned automatic focusing drive division in the mode that can shake.
As claim 1 record tremble the lens driver of debugging functions with hand, it is characterized in that,
Above-mentioned leaf spring set into, the plate face of above-mentioned the first elastic and above-mentioned the second elastic is parallel with above-mentioned optical axis direction.
As claim 2 record tremble the lens driver of debugging functions with hand, it is characterized in that,
Above-mentioned leaf spring has above-mentioned one distolateral the first linking part of giving prominence to above-mentioned another direction extension from above-mentioned the first elastic, and has above-mentioned one distolateral the second linking part of giving prominence to above-mentioned direction extension from above-mentioned the second elastic,
Above-mentioned the first linking part be connected the second linking part and connect.
As any one record in claim 1～3 tremble the lens driver of debugging functions with hand, it is characterized in that,
A plurality of above-mentioned leaf springs are even number.
As claim 4 record tremble the lens driver of debugging functions with hand, it is characterized in that,
Above-mentioned a plurality of leaf spring is, clip above-mentioned optical axis and opposed leaf spring each other centered by above-mentioned optical axis and be provided in impartial position.
As claim 4 record tremble the lens driver of debugging functions with hand, it is characterized in that,
Above-mentioned leaf spring is four.
As claim 6 record tremble the lens driver of debugging functions with hand, it is characterized in that,
Above-mentioned four leaf springs are provided in from the equidistant position of above-mentioned optical axis.
As any one record in claim 1～3 tremble the lens driver of debugging functions with hand, it is characterized in that,
Above-mentioned automatic focusing drive division possesses a plurality of the first magnet, the first coil, the first yoke in the position on every side that surrounds the said lens support, and the electromagnetic force by producing to above-mentioned First Line circle energising makes the said lens support move along optical axis direction,
The position of above-mentioned magnetic driving mechanism between interior all sides of the outer circumferential side of above-mentioned automatic focusing drive division and above-mentioned fixed body possesses a plurality of the second magnet, a plurality of the second yoke, a plurality of the second coil, by the electromagnetic force that produces to above-mentioned the second coil electricity, above-mentioned automatic focusing drive division is moved to the direction of intersecting with above-mentioned optical axis.
As claim 8 record tremble the lens driver of debugging functions with hand, it is characterized in that,
At least one of above-mentioned leaf spring is electrically connected to an end of above-mentioned the first coil,
Another other end with above-mentioned the first coil at least of above-mentioned leaf spring is electrically connected to.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-122775 | 2012-05-30 | ||
| JP2012122775A JP2013250299A (en) | 2012-05-30 | 2012-05-30 | Lens driving device with camera shake correcting function |
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| CN203275847U true CN203275847U (en) | 2013-11-06 |
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| CN (1) | CN203275847U (en) |
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