CN101726851A - Optical unit with shake correcting function - Google Patents

Abstract

The present invention may advantageously provide an optical unit with shake correcting function in which shake of a movable module is corrected with a small torque and a quick response without mechanically connecting the fixed body and the movable module through a drive mechanism. An optical unit with shake correcting function may include a movable module having a lens, a fixed body supporting the movable module, a shake detection sensor for detecting shake of the movable module, and at least one pair of magnetic drive mechanism for shake correction which is structured on both sides of the movable module so that the movable module is swung with respect to the fixed body on the basis of detection result of the shake detection sensor to correct the shake of the movable module. The magnetic drive mechanism for shake correction is disposed so that a shake correction magnet is held by the fixed body and a shake correction coil is held by the movable module.

Description

The optical unit that has shake correcting function

Technical field

The present invention relates to a kind of lensed module of installing that makes and swing the optical unit that has shake correcting function of revising shakes such as hand shake.

Background technology

Be installed in optical devices for shooting, laser pen on mobile phone and the digital camera etc., carry with and the optical devices such as projection display equipment of vehicle mounted in, when transmitting hand shake and external vibration, optical axis is easy to generate shake.

Therefore, at the employed optical units for shooting such as optical devices for shooting that carry usefulness, such technology has been proposed: movable module is supported on the fixed body by elastic body, and on each side of movable module, constitute the actuator that utilizes piezoelectric element, testing result according to hand shake detecting sensor makes movable module around swinging with the X-axis and the Y-axis of actuator optical axis direction (Z-direction) quadrature, shakes (with reference to patent documentation 1) thereby revise hand.

Patent documentation 1: the Jap.P. spy opens Figure 12 of 2007-129295 communique

In addition, the optical unit for shooting as revising the hand shake when taking has also proposed such optical unit, and it comprises: the movable part that is equiped with lens and imaging apparatus; Be fixed on the base station and with the pivot of the bottom surface butt of movable part; The leaf spring that is fixed on the base station and movable portion supports is become can swing; And the tilting mechanism (for example with reference to patent documentation 2) that is used to make the movable part swing.In the above-mentioned optical unit, tilting mechanism constitutes with magnet by driving with coil and driving, the effect of the driving force by tilting mechanism, and movable part is that fulcrum is swung with the pivot, thereby with hand shake correction.

Patent documentation 2: the Jap.P. spy opens the 2007-310084 communique

In addition, in the above-mentioned optical unit, leaf spring comprises: be fixed on stator on the base station, be attached at housing sheet on the stator, be attached at the support chip of the movable part on the housing sheet by the Y-axis variant part by the X-axis variant part, during the movable part swing, X-axis variant part and Y-axis variant part reverse.In the above-mentioned optical devices, leaf spring is fixed on the base station with the state of deflection, is used to make the bottom surface pressurization of butt reliably of the front end and the movable part of pivot with generation.

Yet as the structure that patent documentation 1 discloses, in the occasion of the actuator that utilizes piezoelectric element, fixed body mechanically is connected by actuator with movable module, therefore has problems such as assembling trouble and resistance to vibration difference.In addition, also utilize sometimes to drive with coil and drive to constitute tilting mechanism, but can't shake correction with response fast this moment with less torque with magnet.

In addition, on the market of portable sets such as mobile phone, the miniaturization of portable set, the requirement of slimming are more and more higher, and consequently, the requirement of miniaturization, slimming that is installed in the optical unit for shooting on the portable set is also more and more higher.Yet, when optical unit miniaturization for shooting, slimming, be used to make the driving of the movable part swing that is equiped with lens and imaging apparatus to be restricted, therefore, be difficult to obtain the driving force that enough being used to makes the movable part swing with coil and the configuration space that drives with magnet.

Summary of the invention

In view of the foregoing problems, first technical matters of the present invention is to provide a kind of optical unit that has shake correcting function that can carry out the shake correction of movable module with less torque with response fast under the situation that need not mechanically be connected and fixed body and movable module by driving mechanism.

In addition, even second technical matters of the present invention is to provide a kind of optical unit that has shake correcting function that enough being used to makes the driving force of the lens driver swing that is equiped with lens and imaging apparatus that also can obtain when miniaturization, slimming.

In order to solve above-mentioned first technical matters, the feature that has the optical unit of shake correcting function of the present invention is to have: movable module, and it is equiped with lens at least; Fixed body, it supports above-mentioned movable module; The shake detecting sensor, its shake to above-mentioned movable module detects; And one group organized shake at the most and revise and to use the magnetic driving mechanism, its both sides in above-mentioned movable module constitute, and above-mentioned movable module is swung on the said fixing body according to the testing result of above-mentioned shake detecting sensor, to revise the shake of this movable module, organize the shake correction at the most with in the magnetic driving mechanism for above-mentioned one group, at least one group is that shake correction is kept by the said fixing body with magnet, and shake correction uses coil to be kept by above-mentioned movable module.

Among the present invention,, utilized the magnetic driving mechanism, therefore, can under the situation that need not mechanically be connected and fixed body and movable module, carry out the shake correction of movable module by driving mechanism in order to revise the shakes such as hand shake of movable module.Therefore, assembling is easily, and resistance to vibration is good.In addition, because will be than the light coil configuration of magnet in movable module side, will be than the heavy configurations of magnets of coil on fixing side, therefore, and can be with the movable module of less torque actuated, and the response of correction is good.

Among the present invention, comparatively it is desirable to, three orthogonal on said fixing body directions are made as X-axis respectively, Y-axis, the Z axle, and will be made as the Z axle along the direction of above-mentioned optical axis the time, as above-mentioned shake correction magnetic driving mechanism, formation makes above-mentioned movable module revise with the magnetic driving mechanism and produce around first shake of the magnetic driving force of X-axis swing by generation and makes above-mentioned movable module revise two groups of forming with the magnetic driving mechanism around second shake of the magnetic driving force of Y-axis swing to shake correction magnetic driving mechanisms, above-mentioned first shakes correction uses in any of magnetic driving mechanism with magnetic driving mechanism and the above-mentioned second shake correction, all be that shake correction is held in the said fixing side with magnet, and shake correction use coil to be kept by above-mentioned movable module.

In the present invention, comparatively it is desirable to, above-mentioned shake detecting sensor is installed on the above-mentioned movable module.Particularly, can adopt such structure: above-mentioned movable module comprises lens driving module, this lens driving module has: said lens is remained on inboard moving body, makes the lens actuating device that this moving body moves along the optical axis direction of said lens, the supporter of installing this lens actuating device and above-mentioned moving body, this supporter has: module lid, keep the imaging apparatus keeper of imaging apparatus in a side opposite with the side that is taken, above-mentioned shake detecting sensor and above-mentioned imaging apparatus keeper are installed on the above-mentioned movable module integratedly.In this case, comparatively it is desirable to, above-mentioned movable module can swingingly be configured in the inboard as the fixed cap of shell that constitutes the said fixing body by spring members, on the outside surface of above-mentioned module lid, keeping above-mentioned shake correction coil, and on the inside surface of said fixing lid to keep above-mentioned shake correction magnet with the relative form of coil with above-mentioned shake correction.If adopt this structure, then the shake of optical axis is directly detected by the shake detecting sensor, thereby can revise shake accurately.

In this case, comparatively it is desirable to, come above-mentioned coil is powered by the flexible wiring substrate that above-mentioned shake detecting sensor is connected with external electric.When adopting this structure, between movable module and outside, need be electrically connected and shake correction is electrically connected with coil, but by shared flexible wiring substrate the shake detecting sensor, simplified structure correspondingly, and can reduce cost.

Among the present invention, also can adopt such structure: the hand shake when taking of the rear side of the said lens on above-mentioned movable module installing imaging apparatus, above-mentioned shake detecting sensor detects.When constituting like this, the hand shake in the time of preventing to press shutter.

In this case, comparatively it is desirable to, come above-mentioned shake correction is powered with coil by the flexible wiring substrate that above-mentioned imaging apparatus is connected with external electric.When adopting this structure, between movable module and outside, need be electrically connected and shake correction is electrically connected with coil, but by shared flexible wiring substrate imaging apparatus, simplified structure correspondingly, and can reduce cost.

In the present invention, also can adopt such structure: on above-mentioned movable module, be equiped with the lens actuating device that drives said lens along optical axis direction in the magnetic mode.When constituting like this, the optical unit that has the shake correcting function action of focusing.

In this case, comparatively it is desirable to, come above-mentioned shake correction is powered with coil by the flexible wiring substrate that the said lens driving mechanism is connected with external electric.If adopt this structure, then between movable module and outside, need lens actuating device is electrically connected and shake correction is electrically connected with coil, but by shared flexible wiring substrate, simplified structure correspondingly, and can reduce cost.

In order to solve above-mentioned second technical matters, the feature that has the optical unit of shake correcting function of the present invention is to comprise: lens driving module, and it is equiped with the lens actuating device of lens, imaging apparatus and driving said lens; Sensor, it is used for the variation of the inclination of said lens driver module is detected; And shake correction mechanism, its testing result according to the sensor makes the swing of said lens driver module, thereby revise shake, above-mentioned shake correction mechanism comprises: the wobble drive mechanism that makes the swing of said lens driver module, fulcrum as the oscillation centre of said lens driver module, above-mentioned wobble drive mechanism comprises that shake correction opposite each other use magnet with coil and shake correction, and above-mentioned shake correction is to be slightly at least one zone in the second area of the direction of above-mentioned fulcrum slightly away from the direction of the first area of the direction of above-mentioned fulcrum and the above-mentioned magnetic line of force with coil configuration in the direction of the magnetic line of force that above-mentioned shake correction produces with magnet.

In the optical unit that has a shake correcting function of the present invention, the shake correction that constitutes wobble drive mechanism with coil configuration the direction that the magnetic line of force that produces with magnet is revised in shake be slightly away from the first area of the direction of fulcrum in and/or the direction of the magnetic line of force be slightly in the second area of the direction of fulcrum.Therefore, can make direction in general roughly consistent with the tangential direction that with the fulcrum is center and the circle of using coil through shake correction by shake being revised the electromagnetic force that produces with coil power supply.That is, can make by shake being revised the direction of the electromagnetic force that produces with coil power supply, be the direction that the center makes the oscillatory forces of lens driving module swing towards being used to produce with the fulcrum in general.Therefore, among the present invention, can effectively utilize shake and revise the magnetic flux that produces with magnet, thereby can improve the driving force of wobble drive mechanism.Consequently, among the present invention,, also can obtain the driving force that enough being used to makes the lens driving module swing even when having the optical unit miniaturization of shake correcting function, slimming.

In the present invention, comparatively it is desirable to, lens driving module is configured in the cover that forms quadrangular barrel shape roughly, and comprise the roughly shell of quadrangular barrel shape that forms of support of lens driver module, fixing shake correction is used magnet on the lateral surface of above-mentioned cover, and fixes above-mentioned shake correction coil on the medial surface of shell.Like this, if lens driving module is configured in the cover that forms quadrangular barrel shape roughly, and utilization forms roughly, and the shell of quadrangular barrel shape comes the support of lens driver module, then shake can be revised with magnet and shake correction and be respectively on the side on plane with coil stationary, therefore, can easily the shake correction be become relativeness with shake correction with coil configuration with magnet.In this case, can adopt such structure: comprise base body, this base body is fixed into one at the lower end side and the above-mentioned shell of optical unit, thereby constitute the supporter that supports the said lens driver module, the sensor is disposed at the bottom of said lens driver module, above-mentioned fulcrum is formed between the bottom and above-mentioned base body of said lens driver module, and above-mentioned shake correction becomes with coil configuration: the above-mentioned shake correction on the above-mentioned optical axis direction is configured in upside with the magnetic force center of magnet with respect to the above-mentioned shake correction on the above-mentioned optical axis direction with the center of coil on above-mentioned optical axis direction.When constituting like this, can extend and use the distance of coil from oscillation centre to shake correction, therefore, can increase that to be used for the oscillation centre be the torque that the center is swung lens driving module.

In addition, in order to solve above-mentioned second technical matters, the feature that has the optical unit of shake correcting function of the present invention is to comprise: lens driving module, and it is equiped with the lens actuating device of lens, imaging apparatus and driving lens; Sensor, it is used for the variation of the inclination of lens driving module is detected; And shake correction mechanism, its testing result according to sensor makes the lens driving module swing, thereby revise shake, the shake correction mechanism comprises the wobble drive mechanism that makes the lens driving module swing, wobble drive mechanism comprises that shake correction opposite each other use magnet with coil and shake correction, and it is to be slightly at least one zone in the second area of the direction of above-mentioned oscillation centre slightly away from the direction of the first area of the direction of the oscillation centre of said lens driver module and the above-mentioned magnetic line of force in the direction that the magnetic line of force that produces with magnet is revised in shake that shake is revised with coil configuration.

In the optical unit that has a shake correcting function of the present invention, the shake correction that constitutes wobble drive mechanism with coil configuration the direction that the magnetic line of force that produces with magnet is revised in shake be slightly away from the first area of the direction of the oscillation centre of lens driving module in and/or the direction of the magnetic line of force be slightly in the second area of the direction of oscillation centre.Therefore, can make direction in general roughly consistent with the tangential direction that with the oscillation centre is center and the circle of using coil through shake correction by shake being revised the electromagnetic force that produces with coil power supply.That is, direction by shake being revised the electromagnetic force that produces with coil power supply in general is used for the oscillation centre towards generation be the direction that the center makes the oscillatory forces that lens driving module swings.Therefore, among the present invention, can effectively utilize shake and revise the magnetic flux that produces with magnet, thereby can improve the driving force of wobble drive mechanism.Consequently, among the present invention,, also can obtain the driving force that enough being used to makes the lens driving module swing even when having the optical unit miniaturization of shake correcting function, slimming.

In the present invention, comparatively it is desirable to, lens driving module is configured in the cover that forms quadrangular barrel shape roughly, and comprise the roughly shell of quadrangular barrel shape that forms that supports the said lens driver module, on the lateral surface of cover, shake revised with magnet be fixed in the both sides of the optical axis direction of lens, on the medial surface of shell, will be fixed in the both sides of above-mentioned optical axis direction with respect to above-mentioned oscillation centre with coil with the relative shake correction of magnet with the shake correction with respect to oscillation centre.Like this, if lens driving module is configured in the cover that forms quadrangular barrel shape roughly, and utilization forms roughly, and the shell of quadrangular barrel shape comes the support of lens driver module, then shake can be revised with magnet and shake correction and be respectively on the side on plane with coil stationary, therefore, can easily oscillation centre be set in the central portion of lens driving module, and dispose shake in the both sides of its optical axis direction respectively with relativeness and revise with magnet and shake correction coil.In this case, if be fixed in two of cover lateral surface shakes revise with magnet between and two shake corrections of being fixed in the shell medial surface dispose leaf spring between with coil, then can easily utilize leaf spring that lens driving module can swingingly be supported on the shell.

In the present invention, comparatively it is desirable to, the shake correction is wound into essentially rectangular with coil and forms, shake correction comprises the first limit portion parallel to each other and the second limit portion with coil, revise revising on the opposite face relative in shake with magnet with coil with shake, be formed with the length direction of the length direction of the first limit portion and the second limit portion overlapping the two poles of the earth magnetic pole on the direction of quadrature roughly, the first limit portion is configured in the first area, the second limit portion is configured in the second area.When constituting like this, can produce in the first limit portion and the second limit portion with generation is the electromagnetic force of the roughly consistent direction of the direction of oscillatory forces of lens driving module at center with fulcrum or oscillation centre.Therefore, can effectively improve the driving force of wobble drive mechanism.

In addition, in order to solve above-mentioned second technical matters, the feature that has the optical unit of shake correcting function of the present invention is to comprise: lens driving module, and it is equiped with the lens actuating device of lens, imaging apparatus and driving lens; Supporter, its support of lens driver module; Sensor, it is used for the variation of the inclination of lens driving module is detected; And shake correction mechanism, its testing result according to sensor makes lens driving module swing with respect to supporter, thereby revise shake, the shake correction mechanism comprises: the wobble drive mechanism that makes the lens driving module swing, become the fulcrum of the oscillation centre of lens driving module, wobble drive mechanism comprises shake correction opposite each other coil and shake correction magnet, on the optical axis direction of lens driving module, fulcrum is disposed to revise with coil and shake from shake revises the position that the relative position with magnet departs from, and shake is revised with coil and shake correction to become with configurations of magnets: the shake correction with coil the center on the optical axis direction with shake correction and on optical axis direction, departing from the magnetic force center on the optical axis direction of magnet.

In the optical unit that has a shake correcting function of the present invention, on the optical axis direction of lens driving module, fulcrum is disposed at from shake and revises the position of departing from the relative position of magnet with coil and shake correction.In addition, shake is revised with coil to become with configurations of magnets with shake correction: departing from optical axis direction with the magnetic force center on the optical axis direction of magnet at center on the optical axis direction and shake correction with coil revised in shake.Therefore, can direction that the magnetic line of force that produces with magnet is revised in shake in slightly away from the zone of the direction of fulcrum and/or the direction of the magnetic line of force for slightly in the zone of the direction of fulcrum configuration shake the correction coil.Therefore, can make direction in general roughly consistent with the tangential direction that with the fulcrum is center and the circle of using coil through shake correction by shake being revised the electromagnetic force that produces with coil power supply.That is, direction by shake being revised the electromagnetic force that produces with coil power supply in general is used for the fulcrum towards generation be the direction that the center makes the oscillatory forces that lens driving module swings.Therefore, among the present invention, can effectively utilize shake and revise the magnetic flux that produces with magnet, thereby can improve the driving force of wobble drive mechanism.Consequently, among the present invention,, also can obtain the driving force that enough being used to makes the lens driving module swing even when having the optical unit miniaturization of shake correcting function, slimming.

In addition, in order to solve above-mentioned second technical matters, the feature that has the optical unit of shake correcting function of the present invention is to comprise: lens driving module, and it is equiped with the lens actuating device of lens, imaging apparatus and driving lens; Supporter, its support of lens driver module; Sensor, it is used for the variation of the inclination of lens driving module is detected; And shake correction mechanism, its testing result according to sensor makes lens driving module swing with respect to supporter, thereby revise shake, the shake correction mechanism comprises the wobble drive mechanism that makes the lens driving module swing, wobble drive mechanism comprises shake correction opposite each other coil and shake correction magnet, on the optical axis direction of lens driving module, the oscillation centre of lens driving module is disposed to revise with coil and shake from shake revises the position that the relative position with magnet departs from, and shake is revised with coil and shake correction to become with configurations of magnets: the shake correction with coil the center on the optical axis direction with shake correction and on optical axis direction, departing from the magnetic force center on the optical axis direction of magnet.

In the optical unit that has a shake correcting function of the present invention, on the optical axis direction of lens driving module, the oscillation centre of lens driving module is disposed at from shake and revises the position of departing from the relative position of magnet with coil and shake correction.In addition, shake is revised with coil to become with configurations of magnets with shake correction: departing from optical axis direction with the magnetic force center on the optical axis direction of magnet at center on the optical axis direction and shake correction with coil revised in shake.Therefore, can direction that the magnetic line of force that produces with magnet is revised in shake in slightly away from the zone of the direction of oscillation centre and/or the direction of the magnetic line of force for slightly in the zone of the direction of oscillation centre configuration shake the correction coil.Therefore, can make direction in general roughly consistent with the tangential direction that with the oscillation centre is center and the circle of using coil through shake correction by shake being revised the electromagnetic force that produces with coil power supply.That is, direction by shake being revised the electromagnetic force that produces with coil power supply in general is used for the oscillation centre towards generation be the direction that the center makes the oscillatory forces that lens driving module swings.Therefore, among the present invention, can effectively utilize shake and revise the magnetic flux that produces with magnet, thereby can improve the driving force of wobble drive mechanism.Consequently, among the present invention,, also can obtain the driving force that enough being used to makes the lens driving module swing even when having the optical unit miniaturization of shake correcting function, slimming.

In the present invention, comparatively it is desirable to, shake correction is fixed on the magnet holding member of swinging with lens driving module with magnet, shake is revised with coil stationary on supporter, shake revise with coil the center configuration on the optical axis direction on optical axis direction than the shake correction of optical axis direction with position, the magnetic force center of magnet away from oscillation centre.When constituting like this, can extend and use the distance of coil from oscillation centre to shake correction, therefore, can increase that to be used for the oscillation centre be the torque that the center is swung lens driving module.That is, can improve the driving force of wobble drive mechanism.

In the present invention, comparatively it is desirable to, the shake correction is wound into essentially rectangular with coil and forms, shake correction comprises the first limit portion parallel to each other and the second limit portion with coil, on the opposite face relative with coil with the shake correction with magnet revised in shake, be formed with the two poles of the earth magnetic pole overlapping on optical axis direction, the first limit portion the center configuration on the optical axis direction on optical axis direction than the two poles of the earth magnetic pole in the magnetic force center of a magnetic pole away from the position of oscillation centre.In addition, in this case, comparatively it is desirable to, the second limit portion in the center configuration on the optical axis direction in revising with position, the border of the two poles of the earth magnetic pole at the magnetic force center on optical axis direction of magnet likening on the optical axis direction to shake near oscillation centre, and be disposed on optical axis direction than position, the magnetic force center of another magnetic pole in the magnetic pole of the two poles of the earth away from oscillation centre.When constituting like this, can produce in the first limit portion and the second limit portion with generation is the electromagnetic force of the roughly consistent direction of the direction of oscillatory forces of lens driving module at center with the oscillation centre.Therefore, can effectively improve the driving force of wobble drive mechanism.

In the present invention, comparatively it is desirable to, shake is revised and to be formed roughly rectangle with coil, has: two long legs parallel to each other, form shortly and two short legs parallel to each other than long leg, the first limit portion and the second limit portion are long leg.When constituting like this, compare during with the second limit portion, can improve the driving force of wobble drive mechanism for short leg with the first limit portion.In addition, revise with shake and to compare when forming roughly square, in the driving force that improves wobble drive mechanism, on the relative direction of long leg, can realize having the miniaturization of the optical unit of shake correcting function with coil.In addition, the short leg that the driving force of wobble drive mechanism is contributed hardly shortens, and therefore, can reduce to shake the resistance value of revising with coil, can reduce the power consumption that shake correction is used coil.

In addition, in order to solve above-mentioned second technical matters, the feature that has the optical unit of shake correcting function of the present invention is to comprise: lens driving module, and it is equiped with the lens actuating device of lens, imaging apparatus and driving lens; Sensor, it is used for the inclination of lens driving module is detected; And hand shake correction mechanism, its testing result according to sensor makes the lens driving module swing, thereby revise the hand shake, hand shake correction mechanism comprises the wobble drive mechanism that makes the lens driving module swing, wobble drive mechanism comprises that shake correction opposite each other use magnet with coil and shake correction, is formed with the magnetic pole more than the two poles of the earth on the opposite face relative with coil with shaking correction with magnet revised in shake.

In the optical unit that has a shake correcting function of the present invention, on revising the opposite face relative with coil with the shake correction with magnet, shake is formed with the magnetic pole more than the two poles of the earth.Therefore, compare when being formed with a utmost point magnetic pole on the opposite face relative with revising in shake, can effectively utilize the shake correction coil of the formation of reeling with coil with revising of magnet with shake.That is, can increase the live part that shake correction is used the generation driving force of coil.Therefore, among the present invention, can improve the driving force of wobble drive mechanism,, also can obtain the driving force that enough being used to makes the lens driving module swing even when having the optical unit miniaturization of shake correcting function, slimming.

In the present invention, comparatively it is desirable to, be formed with the two poles of the earth magnetic pole with revising on the opposite face relative of magnet with coil with shake in the shake correction.When constituting like this, relative by a shake being revised revise with magnet with a coil and a shake, when effectively utilizing shake correction to use coil, can improve the driving force of wobble drive mechanism.Therefore, can simplify the structure of the optical unit that has shake correcting function.

In the present invention, comparatively it is desirable to, the optical unit that has shake correcting function comprises that forming roughly polygonal tubular also keeps shake correction to use the magnet holding member of magnet, revise with revising on the opposite face relative with form overlapping on magnet holding member axial of magnet in shake and to be formed with the two poles of the earth magnetic pole with coil with shake, shake correction is separately fixed on the side of magnet holding member with magnet, so that in the magnetic pole difference of the shake correction that the week of magnet holding member makes progress adjacent with magnet.When constituting like this, between circumferentially adjacent shake correction is with magnet, form magnetic circuit easily.Therefore, can improve the driving force of wobble drive mechanism effectively.Particularly, can adopt such structure: the roughly shell of quadrangular barrel shape that forms that comprises the support of lens driver module, and above-mentioned magnet holding member forms roughly quadrangular barrel shape, on the lateral surface of magnet holding member, fix above-mentioned shake correction magnet, at the fixing above-mentioned shake correction coil of the medial surface of above-mentioned shell.

In the present invention, comparatively it is desirable to, at least two circumferential adjacent sides of magnet holding member upwards linked to each other in week.In this case, comparatively it is desirable to the whole side of magnet holding member upwards linked to each other in week.When constituting like this, between circumferentially adjacent shake correction is with magnet, form magnetic circuit easily.Therefore, can effectively improve the driving force of wobble drive mechanism.

Among the present invention, be provided with one group in the both sides of movable module and organize shake correction magnetic driving mechanism at the most, to revise the shake of movable module, therefore, the shake correction of carrying out movable module under fixed body and the movable discontiguous situation of module can need not mechanically be made by driving mechanism.Therefore, assembling is easy, and resistance to vibration is good.In addition, will be than the light coil configuration of magnet in movable module side, will be than the heavy configurations of magnets of coil in fixing side, therefore, and can be with the movable module of less torque actuated, and the response of correction is good.

In addition, other is of the present invention to have in the optical unit of shake correcting function, even when miniaturization, slimming, also can obtain the driving force that enough being used to makes the lens driving module swing that is equiped with lens and imaging apparatus.

Description of drawings

Fig. 1 is that the key diagram that has the optical unit integral body of shake correcting function of the present invention is used in expression.

Fig. 2 is the key diagram of the lens driving module that constitutes in the movable module of using the optical unit that has a shake correcting function of the present invention.

Fig. 3 is the key diagram that schematically illustrates the action of lens driving module shown in Figure 2.

Fig. 4 is the key diagram that the cross section structure of the optical unit that has a shake correcting function of the present invention is used in expression.

Fig. 5 is the key diagram of the cross section structure of expression will use the optical unit that has shake correcting function of the present invention and dissect in the position different with Fig. 4 the time.

Fig. 6 observes from the front side to use the exploded perspective view that has the optical unit of shake correcting function of the present invention.

Fig. 7 observes from rear side to use the exploded perspective view that has the optical unit of shake correcting function of the present invention.

Fig. 8 uses the movable module of the optical unit that has a shake correcting function of the present invention and the key diagram of the parts that are connected with this movable module.

Fig. 9 observes from the front side to use the employed movable module of optical unit of shake correcting function and the exploded perspective view of flexible base, board of having of the present invention.

Figure 10 observes from rear side to use the employed movable module of optical unit of shake correcting function and the exploded perspective view of flexible base, board of having of the present invention.

Figure 11 is a key diagram of using the parts of formation supporting mechanism in the optical unit that has a shake correcting function of the present invention etc.

Figure 12 (a) and (b) are respectively to observe from X-direction to use key diagram and the cut-open view that has base, spring members and the sender unit cap of the optical unit of shake correcting function of the present invention.

Figure 13 is the key diagram of parts of using the movable range of the movable module of restriction in the optical unit that has a shake correcting function of the present invention.

Figure 14 is the key diagram of mechanism of using the movable range of the movable module 1 of restriction in the optical unit that has a shake correcting function of the present invention.

Figure 15 is the stereographic map of the related optical unit that has shake correcting function of another embodiment of the present invention.

Figure 16 is the cut-open view in the E-E cross section of Figure 15.

Figure 17 is the vertical view that coil is used in shake correction shown in Figure 16.

Figure 18 is used to illustrate shake correction shown in Figure 16 figure with the magnetic line of force of magnet generation.

Figure 19 is the figure that is used to illustrate by the direction of electromagnetic force that shake correction shown in Figure 16 is produced with coil power supply.

Figure 20 is the figure of the effect of the optical unit that has shake correcting function that is used to illustrate that embodiments of the present invention are related.

Figure 21 is the figure that is used to illustrate the condition of the simulation that the driving force to wobble drive mechanism shown in Figure 16 compares.

The curve map of Figure 22 Simulation result that to be expression compare the driving force of wobble drive mechanism shown in Figure 16.

Figure 23 is the cut-open view of the related optical unit that has shake correcting function of another embodiment of the invention.

Figure 24 is the vertical view that coil is used in shake correction shown in Figure 23.

Figure 25 is the vertical view that coil is used in shake correction shown in Figure 23.

Figure 26 is used to illustrate shake correction shown in Figure 23 figure with the magnetic line of force of magnet generation.

Figure 27 is the figure that is used to illustrate by the direction of electromagnetic force that shake correction shown in Figure 23 is produced with coil power supply.

Figure 28 is the figure that schematically illustrates the movable module of the related optical unit that has shake correcting function of another embodiment of the invention.

Figure 29 is the stereographic map of the related optical unit that has debugging functions of an embodiment more of the present invention.

Figure 30 is the cut-open view in the E-E cross section of Figure 29.

Figure 31 is the stereographic map of a part of inscape in the F-F cross section of expression Figure 29.

Figure 32 is the figure that is used to illustrate the effect of the optical unit that has debugging functions shown in Figure 29.

(symbol description)

1 movable module

The 1a lens driving module

9 covers (magnet holding member)

23 shake corrections are used coil

23a long leg (the first limit portion)

23b long leg (the second limit portion)

23c, 23d short leg

27 bearing surfaces (the magnetic force center with magnet, the border of the two poles of the earth magnetic pole are revised in shake)

30 first areas

31 second areas

45 supporters

46 wobble drive mechanisms (part of the part of shake correction mechanism, hand shake correction mechanism)

51 have the optical unit of shake correcting function

55 supporters

56 wobble drive mechanisms (part of the part of shake correction mechanism, hand shake correction mechanism)

59 covers (magnet holding member)

67 leaf springs (part of the part of shake correction mechanism, hand shake correction mechanism)

69 oscillation centres

71,72 shake corrections are used magnet

73,74 shake corrections are used coil

73a, 74a long leg (the first limit portion)

73b, 74b long leg (the second limit portion)

73c, 73d, 74c, 74d short leg

77,78 bearing surfaces (the magnetic force center with magnet, the border of the two poles of the earth magnetic pole are revised in shake)

80,85 first areas

100,101 optical units that have a shake correcting function

117 leaf springs (part of the part of shake correction mechanism, hand shake correction mechanism)

119 fulcrum (part of the part of oscillation centre, shake correction mechanism, hand shake correction mechanism)

160 module lid

170,171,172 hands shake detecting sensor

180 sender unit caps

200 have the optical unit of shake correcting function

201,203 lens driving modules

210 fixed bodies

220 bases

The shake of 230x hand is revised with coil (the first shake correction is used coil)

The shake of 230y hand is revised with coil (the second shake correction is used coil)

The shake of 240x hand is revised with magnet (first-hand shake correction magnet)

The shake of 240y hand is revised with magnet (second-hand shakes to revise and uses magnet)

The first-hand shake correction magnetic driving mechanism of 250x

250y second-hand shakes to revise and uses the magnetic driving mechanism

260 fixed caps

270 rear side limiting components

280 spring members (force application part)

290 front side limiting components

300 flexible base, boards

321 shake corrections are used magnet

400 supporting mechanisms

The center of CL1, CL11, the CL21 first magnet sheet (the magnetic force center of a magnetic pole in the magnetic pole of the two poles of the earth)

The center of the CL2 second magnet sheet (the magnetic force center of another magnetic pole in the magnetic pole of the two poles of the earth)

The center with coil is revised in CL3, CL13, CL23 shake

The center of CL4, CL14, CL24 long leg (center of the first limit portion)

The center of CL5 long leg (center of the second limit portion)

The L optical axis

Embodiment

Below, be used to be implemented in the of the present invention preferred forms of the both sides formation shake correction of movable module with reference to accompanying drawing explanation with the magnetic driving mechanism.In the following description, three orthogonal on fixed body directions are made as X-axis, Y-axis, Z axle respectively, will describe as the Z axle along the direction of optical axis L (lens axis).Therefore, in the following explanation, in the shake of all directions, be equivalent to so-called pitching (pitch), be equivalent to so-called deflection (yaw), be equivalent to so-called lift-over (roll) around the rotation of Z axle around the rotation of Y-axis around the rotation of X-axis.In addition, in the following explanation, will " side is taken " conduct " front side " or " upside " describe, with " side opposite " conduct " rear side " or " downside " explanation with the side that is taken.

(one-piece construction that has the optical unit of shake correcting function)

Fig. 1 is that the key diagram that has the optical unit integral body of shake correcting function of the present invention is used in expression, Fig. 1 (a) and (b), (c) be respectively observe from the side that is taken (front side) use the stereographic map that has an optical unit of shake correcting function of the present invention, be the key diagram that optical unit that the stereographic map observed of rear side and expression will have shake correcting function is installed in the state behind the optical device such as mobile phone from a side opposite with the body that is taken.

The optical unit that has shake correcting function 200 shown in Fig. 1 (a) and (b) (optical unit that has the hand shake correcting function) is the thin camera that uses in having the mobile phone of camera, and integral body is roughly rectangular shape.In the present embodiment, the optical unit 200 that has shake correcting function comprises: the tabular base 220 of essentially rectangular, cover the case shape fixed cap 260 of the top of this base 220, base 220 and fixed cap 260 are fixed to one another and constitute the part of fixed body 210.In fixed body 210, the anterior end (end, side is taken) of fixed cap 260 sometimes also fixedly tripper, various light filters are switched to the state that occurs or the light filter driving mechanism of the state that disappears from optical axis and the accessory module of built in light loop mechanism on optical axis.

Fixed cap 260 comprises the top plate portion 261 of rectangle in rectangular shaped when the direction (direction of Z axle) of optical axis L is observed in the front side.On top plate portion 261, be formed with the peristome 261a of rectangle, extend four side plates 262 towards the rear from the outer peripheral edges of top plate portion 261.In four side plates 262, end edge at two side plates 262 that are positioned at Y direction is formed with breach 262d, draws the lead division 350 of flexible base, board 300 by breach 262d along Y direction from a slice side plate 262 of two side plates 262 being arranged in Y direction.The lead division 350 of this flexible base, board 300 is fixed in side plate 262 by bonding agent etc.

Dispose the built-in movable module 1 of focusing that lens are used in the inboard of fixed cap 260, and as hereinafter described, constituted the hand shake correction mechanism that makes movable module 1 swing carry out hand shake correction.Movable module 1 has the built-in lens driving module 1a of focusing that lens are used, and this lens driving module 1a is maintained at the inboard of the module lid 160 of angle tubular.

(structure of lens driving module)

Fig. 2 is the key diagram of the lens driving module 1a that constitutes in the movable module 1 of using the optical unit 200 that has a shake correcting function of the present invention, and Fig. 2 (a), Fig. 2 (b) are respectively outside drawing and the exploded perspective views from oblique upper observation lens driving module 1a.Fig. 3 is the key diagram that schematically illustrates the action of lens driving module 1a shown in Figure 2.Figure when the left-half of Fig. 3 is moving body 3 position that is positioned at infinity (camera site usually), the right half part of Fig. 3 is the figure when moving body 3 is positioned at close-perspective recording position (low power camera site).

In Fig. 2 (a), Fig. 2 (b) and Fig. 3, lens driving module 1a be used to make lens along the direction of optical axis L towards moving near the A direction (front side) of the body (object side) that is taken with towards B direction (rear side) both direction near a side opposite (imaging apparatus side/as side) with the body that is taken, lens driving module 1a is roughly rectangular shape.Lens driving module 1a roughly has: three lens 121 and fixed aperture are remained on inboard moving body 3, make the lens actuating device 5 that this moving body 3 moves along the direction of optical axis L, the supporter 2 that is equiped with lens actuating device 5 and moving body 3 etc.Moving body 3 comprises: the lens that keep the lens keeper 12 cylindraceous of lens 121 and fixed aperture and keep lens described later to drive with coil 30s, 30t with circumferential lateral surface drive with coil keeper 13.

Supporter 2 comprises: the imaging apparatus keeper 19 of the rectangular plate shape of a side positioning shooting element 15 opposite with the side that is taken, with respect to imaging apparatus keeper 19 cover the case shape on the side that is taken housing 18, be configured in the dividing plate 11 of the rectangular plate shape of housing 18 inboards, the central authorities of housing 18 and dividing plate 11 be formed with respectively be used for introduce from the light of the body that is taken lens 121 circle inject window 18a, 110.In addition, the central authorities at imaging apparatus keeper 19 are formed with and will inject the hole 19a of light towards imaging apparatus 15 guiding.

In addition, in lens driving module 1a, supporter 2 comprises the substrate 154 that imaging apparatus 15 is installed, and substrate 154 is fixed on the lower surface of imaging apparatus keeper 19.Herein, substrate 154 is double-sided substrates, is connected with flexible base, board shown in Figure 1 300 in the lower face side of substrate 154.

In the present embodiment, housing 18 is formed by ferromagnetism plates such as steel plates, also works as yoke.Therefore, housing 18 constitutes with magnet 17 with lens driving described later to be made by the lens driving interlinkage magnetic field generating body 4 of the lens driving of coil keeper 13 maintenances with coil 30s, 30t generation interlinkage magnetic field, and this interlinkage magnetic field generating body 4 constitutes lens actuating device 5 with the driving of the lens on the outer peripheral face of coil keeper 13 with coil 30s, 30t with being wound on the lens driving.

Supporter 2 is connected by metal spring members 14s, 14t with moving body 3.The basic structure of spring members 14s, 14t is identical, comprising: remain on supporter 2 sides outer circumferential side linking part 14a, remain on circular interior all side linking part 14b of moving body 3 sides, the plate spring part 14c of arm shape that outer circumferential side linking part 14a is connected with interior all side linking part 14b.Among spring members 14s, the 14t, the outer circumferential side linking part 14a of the spring members 14s of imaging apparatus side pixel spare keeper 19 being shot keeps, and the imaging apparatus side end face that the lens of interior all side linking part 14b and moving body 3 drive with coil keeper 13 links.The outer circumferential side linking part 14a of spring members 14t on side of being taken is kept by dividing plate 11, and the lens of interior all side linking part 14b and moving body 3 drive the side end face binding that is taken with coil keeper 13.Like this, moving body 3 supports to and can move along the direction of optical axis L by the supported body 2 of spring members 14s, 14t.This spring members 14s, 14t make by nonmagnetic metals such as beryllium copper and nonmagnetic SUS class steel, carry out punch process or use the etching and processing of photolithography technology to form by the thin plate to specific thickness.Among spring members 14s, the 14t, spring members 14s is divided into two and becomes spring leaf 14e, 14f, and each end that lens drive with coil 30s, 30t is connected with spring leaf 14e, 14f respectively.In addition, among the spring members 14s, be formed with terminal 14d respectively on spring leaf 14e, 14f, spring members 14s (spring leaf 14e, 14f) also drives the power supply part of using with coil 30s, 30t as lens and works.

In the present embodiment, keeping the magnetic piece 61 of ring-type on the anterior end surface of lens driving with coil keeper 13, it is forward position that the position of this magnetic piece 61 drives with magnet 17 with respect to lens.Magnetic piece 61 utilizes the attractive force that acts between with magnet 17 in itself and lens driving moving body 3 to be applied the acting force of the direction of optical axis L.Therefore, can prevent moving body 3 when not switching on because of the deadweight displacement, thereby make moving body 3 keep the posture of expectation, can also improve resistance to impact in addition.In addition, magnetic piece 61 is configured on the anterior end surface of lens keeper 12, and magnetic piece 61 (origin position) when non-energising drives with magnet 17 with lens and attracts, thereby can make lens keeper 12 static at rear side.

In the lens driving module 1a of present embodiment, when the direction of optical axis L was observed, lens 121 were rounded, but supporter 2 employed housing 18 rectangular case shapes.Therefore, housing 18 comprises angle tubular body 18c, comprises in the upper surface side of angle tubular body 18c being formed with the top plate portion 18g that injects window 18a.In the present embodiment, angle tubular body 18c is the quadrangular barrel shape, comprises four side plate 18b in each position that is equivalent to tetragonal limit when the direction of optical axis L is observed.Be connected with lens and drive with magnet 17 on each inside surface of four side plate 18b, these lens drive with magnet 17 and are formed by the tabular permanent magnet of rectangle respectively.Four lens drive and all are divided into two by magnetic on the direction of optical axis L with magnet 17, all are that inside surface is magnetized to the different utmost points with outside surface.For example, four lens drive with in the magnet 17, and for example, the first half is that inside surface is magnetized to the N utmost point, and outside surface is magnetized to the S utmost point, and the latter half is that inside surface is magnetized to the S utmost point, and outside surface is magnetized to the N utmost point.Therefore, four lens drive with in the magnet 17, and adjacent permanent magnet pole configuration each other is identical, can produce the interlinkage lines of magnetic induction efficiently to coil.

Moving body 3 comprises: the lens that are wound with coil (lens drive with coil 30s, 30t) on the lens keeper 12 cylindraceous of maintenance lens 121 grades and the circumferential lateral surface drive with coil keeper 13, and lens keeper 12 and lens driving have constituted the sidewall sections of moving body 3 with coil keeper 13.The first half of lens keeper 12 is the large diameter large diameter cylinder 12b of portion, and Lower Half is the diameter small diameter cylinder portion 12a littler than the 12b of large diameter cylinder portion.Lens drive with coil keeper 13 and comprise the lens keeper reception hole 130 that is used for lens keeper 12 is remained on inboard circle.

In the present embodiment, when the direction observation lens from optical axis L drive with coil keeper 13, interior all shapes that lens drive with coil keeper 13 are circular, but the circumferential lateral surface 131 that the regulation lens drive with the peripheral shape of coil keeper 13 is quadrilaterals, is being equivalent to comprise four faces 132 on each position of tetragonal four edges.Drive on the circumferential lateral surface 131 of using coil keeper 13 at these lens, at the both ends of the direction of optical axis L and middle position around being formed with rib 131a, 131b, 131c full week, the recess that is formed at the rib 131a of imaging apparatus side end and is formed between the rib 131b of middle position is the first coil coiling 132a of portion, is formed at the rib 131c of the end, side that is taken and the recess that is formed between the rib 131b of middle position is the second coil coiling 132b of portion.

In lens drive with coil keeper 13, on each face in four faces 132 the first coil coiling 132a of portion and the second coil coiling 132b of portion be formed with respectively with the form of avoiding tetragonal corner portions located and remove and the through hole (through hole 133a, 133b) of the rectangle that forms, this through hole 133a, 133b run through lens and drive side walls with coil keeper 13 on inward-outward direction.Like this, in the present embodiment, through hole 133a, 133b that lens drive with coil keeper 13 have constituted the cavern part that inwards caves on the circumferential lateral surface 131 of moving body 3.But, making progress in week, through hole 133a, 133b are formed at lens with roughly 1/3 the size of the circumferential lengths size (size on tetragonal limit) of each face 132 and drive with the middle body between the adjacent corner portions located of the circumferential lateral surface 131 of coil keeper 13.Therefore, drive with the corner portions located of coil keeper 13 at lens and be formed with along the leg portion 134 of the heavy wall of the direction extension of optical axis L with identical thickness.

In such lens that constitute drive with coil keeper 13, on the first coil coiling 132a of portion, be wound with the lens driving and use coil 30s, on the second coil coiling 132b of portion, be wound with lens driving coil 30t.Herein, the first coil coiling 132a of portion and the second coil coiling 132b of portion are being quadrilateral when the direction of optical axis L is observed, and therefore, lens drive and all are wound into the quadrangular barrel shape with coil 30s, 30t.Because four lens drive and all are divided into two by magnetic on the direction of optical axis L with magnet 17, all are that inside surface is magnetized to the different utmost points with outside surface, therefore two lens drive with the coiling direction of coil 30s, 30t opposite.

The lens that constitute drive the inboard that is configured in housing 18 with coil keeper 13 like this.Consequently, lens drive with four limit portions of coil 30s, 30t respectively with the inside surface of the angle tubular body 18c that is fixed in housing 18 on lens to drive usefulness magnet 17 relative.

(action of lens actuating device)

In the lens driving module 1a of present embodiment, moving body 3 is usually located at imaging apparatus side (rear side), under such state lens are driven when passing to the electric current of prescribed direction with coil 30s, 30t, the lens driving is subjected to up the electromagnetic force of (front side) respectively with coil 30s, 30t.Thus, being connected with lens drives with moving body 3 beginnings of coil 30s, 30t mobile towards the side (front side) that is taken.At this moment, producing the elastic force that restriction moving body 3 moves between the front end of spring members 14t and moving body 3 and between the rear end of spring members 14s and moving body 3.Therefore, desire to make moving body 3 forward electromagnetic force and the restriction moving body 3 of side shifting move Spring balanced the time, moving body 3 stops.At this moment, drive the magnitude of current, moving body 3 is stopped in the position of expectation with coil 30s, 30t by the elastic force adjustment that acts on moving body 3 according to spring members 14s, the 14t lens of flowing through.

In addition, among the lens driving module 1a, lens 121 are rounded, but it is irrelevant with this lens shape, lens drive and are quadrilateral with coil 30s, 30t, it is tabular permanent magnets that lens drive with magnet 17, and it is fixed in inner peripheral surface in the supporter 2 respectively and forms on a plurality of inside surfaces on the limit that is equivalent to angle tubular body 18c of tetragonal housing 18.Therefore, between moving body 3 and supporter 2,, drive the relative area broad of using 17 of magnets, therefore also can bring into play enough thrust because lens drive with coil 30s, 30t and lens even do not have enough spaces at the outer circumferential side of moving body 3.

For the lens driving module 1a of such formation, imaging apparatus 15 and lens driving need be electrically connected with the control part (not shown) of apparatus main body with coil 30s, 30t.Therefore, in the present embodiment, the side configuration flexible base, board 300 (with reference to Fig. 1) opposite with the side that is taken at lens driving module 1a is electrically connected imaging apparatus 15 and lens and drives with coil 30s, 30t on the Wiring pattern that is formed at flexible base, board 300.

(one-piece construction of hand shake correction mechanism)

Shown in Fig. 1 (c), the optical unit that has shake correcting function 200 of present embodiment is installed on the equipment 500 such as mobile phone, is used to take.When this equipment 500 was taken, the Z axle roughly was the level of state.Therefore, because the shake of the hand when pressing shutter may produce the longitudinal judder around X-axis, and produce transverse judder around Y-axis.Therefore, added the hand shake correction mechanism that describes below with reference to Fig. 4～Figure 14 in the present embodiment.In this hand shake correction mechanism, hand shake detecting sensor is being set in movable module 1, and is utilizing the hand shake to revise to make with respect to fixed body 210 and be configured to and swing around X-axis with around the movable module 1 of Y-axis swing with the magnetic driving mechanism.

In the present embodiment, each structure of the shake correction mechanism that constitutes is described by the order shown in following in the optical unit 200 that has shake correcting function.

The one-piece construction that has the optical unit 200 of shake correcting function ... Fig. 4～Fig. 7

The detailed structure of movable module 1 ... Fig. 4, Fig. 5, Fig. 6～Figure 10

The structure of the supporting mechanism of movable module 1 usefulness ... Fig. 4, Fig. 5, Figure 11 and Figure 12

The structure of the movable range limiting mechanism of movable module 1 usefulness ... Figure 13 and Figure 14

Fig. 4 is the key diagram that the cross section structure of the optical unit 200 that has a shake correcting function of the present invention is used in expression, and Fig. 4 (a) and (b) are respectively the optical unit 200 that will have shake correcting function longitudinal section when dissecing in the position of the Y1-Y1 ' line that is equivalent to Fig. 1 (a) and the longitudinal section when dissecing in the position of the X1-X1 ' line that is equivalent to Fig. 1 (a).Fig. 5 is the key diagram of the cross section structure of expression will use the optical unit 200 that has shake correcting function of the present invention and dissect in the position different with Fig. 4 the time, and Fig. 5 (a) and (b) are respectively the optical unit 200 that will have shake correcting function longitudinal section when dissecing in the position of the C1-C1 ' line that is equivalent to Fig. 1 (a) and the longitudinal section when dissecing in the position of the C2-C2 ' line that is equivalent to Fig. 1 (a).Fig. 6 and Fig. 7 observe to use the exploded perspective view of the optical unit 200 that has a shake correcting function of the present invention and the exploded perspective view of observing from rear side from the front side.Fig. 8 uses the movable module 1 of the optical unit 200 that has a shake correcting function of the present invention and the key diagram of the parts that are connected with this movable module 1, and Fig. 8 (a) and (b) are respectively to observe the stereographic map of movable module 1 and the parts that are connected with this movable module 1 from the front side and from the stereographic map of rear side observation.

In the present embodiment, as shown in Figure 4 to 7, fixed body 210 have from rear side (downside) towards the front side (upside) with base 220, rear side limiting component 270, front side limiting component 290 and the overlapping and fixing successively structure of fixed cap 260.The detailed structure of these parts will be explained below, base 220 plays movable module 1 is supported to the function that can swing, rear side limiting component 270 and front side limiting component 290 play the function of the movable module 1 excessive displacement that prevention can swing, fixed cap 260 works as the shell that has the optical unit 200 of shake correcting function, and plays the function that keeps hand shake correction magnet 240x, 240y.

Dispose Fig. 4～flexible base, board 300 and spring members 280 (force application part) shown in Figure 8 between base 220 and movable module 1, this flexible base, board 300 is connected with movable module 1 with spring members 280.Flexible base, board 300 plays revises the function that is connected with external electric with the employed coil of magnetic driving mechanism with shake detecting sensor 170 with shake, and spring members 280 plays the function of movable module 1 towards base 220 application of forces.In addition, flexible base, board 300 also plays the lens of imaging apparatus 15 and lens actuating device 5 is driven the function that is connected with external electric with coil 30s, 30t.

(configuration of the detailed structure of movable module 1 and hand shake detecting sensor 170)

Fig. 9 and Figure 10 observe from the front side to use optical unit 200 employed movable modules 1 and the exploded perspective view of flexible base, board 300 and the exploded perspective view of observing from rear side that has shake correcting function of the present invention.

As Fig. 4～shown in Figure 10, movable module 1 comprises lens driving module 1a is remained in inboard module lid 160.That is, embed the housing 18 that Fig. 2 is arranged in the inboard of module lid 160, the housing 18 of module lid 160 and Fig. 2 forms one.Therefore, module lid 160 and housing 18 form one, and module lid 160 is also referred to as the supporter that lens driving module 1a uses.Rectangular shaped when module lid 160 is observed from Z-direction is extended four side plates 162 from the outer peripheral edges of the top plate portion 161 of rectangular shape towards rear side.In module lid 160, on top plate portion 161, be formed with circular peristome 161a.

The rearward end opening of module lid 160, metal sender unit cap 180 links with the rearward end of the form that covers this opening and module lid 160.In order to carry out this binding, in the present embodiment, rearward end in module lid 160 comprises the bend 169 that stretches out towards the outside, and this bend 169 is included in the face that intersects with the Z axle module lid side flange portion 168 that (being in the face with Z axle quadrature in the present embodiment) stretches out significantly towards the outside in its four corner portions located.

Sender unit cap 180 comprises: base plate 181, four side plates 182 erectting towards the front side on the outer peripheral edges of base plate 181 are formed with front-end edge at side plate 182 respectively in its four corner portions located and are in the face that intersects with the Z axle sender unit cap side flange portion 188 that (being in the face with Z axle quadrature in the present embodiment) stretches out towards the outside.

Herein, sender unit cap side flange portion 188 and module lid side flange portion 168 form on Z-direction overlapping.In addition, in sender unit cap side flange portion 188 and module lid side flange portion 168, be formed with aperture 188a, 168a.Therefore, in the present embodiment, run through at the axial region that makes screw 198 under the state of aperture 188a, 168a, be fixed on the cartridge 199 that is formed with female screw on the inner peripheral surface on the axial region.When like this sender unit cap 180 being linked with module lid 160, as Fig. 4～shown in Figure 8, on the outer peripheral face of movable module 1, be formed on the teat 108 that four corner portions located of movable module 1 are stretched out towards the outside by module lid side flange portion 168 and sender unit cap side flange portion 188.

In sender unit cap 180, in four side plates 182 on Y direction the front-end edge of opposing sideplates portion 182 be formed with breach 182a.Therefore, under the state that sender unit cap 180 and module lid 160 are linked, between sender unit cap 180 and module lid 160, be formed with gap in the Y direction upper shed.Therefore, the part of flexible base, board 300 can be configured between sender unit cap 180 and the lens driving module 1a, and can the lead division 350 of flexible base, board 300 be drawn from movable module 1 from a side of Y direction.

The sheet material that flexible base, board 300 is the essentially rectangular shape of will extend along Y direction is in three position＜dogleg section 301,302,303〉bending of length direction and the shape that forms.Therefore, flexible base, board 300 comprises: the extension 350 of drawing towards the outside, first plate part 310 that is connected with extension 350, second plate part 320 that is connected with first plate part 310 by dogleg section 301, the 3rd plate part 330 that is connected with second plate part 320 by dogleg section 302, Siping City's plate portion 340, the first plate parts 310 that are connected with the 3rd plate part 330 by dogleg section 303, second plate part 320, the 3rd plate part 330 and Siping City's plate portion 340 are the shape that stacks successively towards the front side from the rear side of Z-direction.Herein, dogleg section 301,303 is bent into acute angle, and on the other hand, dogleg section 302 is the shape that slowly bends to the U word shape.

In this flexible base, board 300, first plate part 310 and second plate part 320 are configured in the rear side (downside) of sender unit cap 180, and the 3rd plate part 330 and Siping City's plate portion 340 are configured between sender unit cap 180 and the lens driving module 1a.Therefore, in flexible base, board 300, a side of dogleg section 302 is drawn around the inside to movable module 1, and in flexible base, board 300, the opposite side of dogleg section 302 extends towards the outside from movable module 1.

In flexible base, board 300, the hand shake detecting sensor 170 as the shake detecting sensor is installed on the lower surface of the 3rd plate part 330, the lower surface and the sender unit cap 180 of hand shake detecting sensor 170 are adhesively fixed.In the present embodiment, because detected shake mainly is the hand shake, therefore be called hand shake detecting sensor, certainly, detected shake is not limited to the hand shake.In flexible base, board 300, drawn around part and movable module 1 one displacement to movable module 1 inside, in flexible base, board 300, the swing that the approaching movably part of module 1 is followed movable module 1 part of drawing from movable module 1 towards the outside is out of shape.As mentioned above, sender unit cap 180 and module lid 160 connect to one, therefore, we can say that hand shake detecting sensor 170 that is adhesively fixed on the sender unit cap 180 and imaging apparatus 15 one that are fixed on the module lid 160 are installed in movable module.

In addition, the double sticky tape 370 by flexibility is fixed with the sheet metal 380 that strengthens usefulness on the upper surface of the 3rd plate part 330.Under this state, the lower face side of hand shake detecting sensor 170 is shielded by sender unit cap 180, and the upper surface side of hand shake detecting sensor 170 is shielded by sheet metal 380.In addition, sheet metal 380 is present between hand shake detecting sensor 170 and the imaging apparatus 15 (with reference to Fig. 2), also plays the function of the lower face side of shielding imaging apparatus 15.On Siping City's plate portion 340 of flexible base, board 300, the imaging apparatus 15 that illustrates with reference to Fig. 2 is electrically connected by substrate 154 (double-sided substrate), and lens drive and also are electrically connected by spring leaf 14e, 14f with coil 30s, 30t.In the present embodiment, hand shake detecting sensor 170 is gyrosensors (angular-rate sensor) of surface installing type, and to diaxon, comparatively the angular velocity that it is desirable to the diaxon of quadrature detects.

In flexible base, board 300, be formed with large diameter circular hole 310a, 320a at first plate part 310 that is disposed at sender unit cap 180 rear sides and second plate part 320, this hole 310a, 320a are the barbed portion that is used at the rear surface of sender unit cap 180 side configuration supporting mechanism 400, and supporting mechanism 400 supports to movable module 1 can swing.Like this, in the present embodiment, on flexible base, board 300, form breach, to avoid the form configuration flexible base, board 300 of supporting mechanism 400.Therefore, the space between base 220 and the movable module 1 can be used as drawing around the space of flexible base, board 300 effectively.

In addition, in first plate part 310, dogleg section 301, second plate part 320 and dogleg section 302, middle body at Width is formed with the slit 300a that extends along Y direction, and this slit 300a extends to dogleg section 302 continuously from the hole 310a that is formed on first plate part 310.Therefore, flexible base, board 300 is because of being formed with correspondingly also easy deformation on Width (X-direction) of slit 300a and hole 310a, 320a.In addition, the configuration of flexible base, board 300 is symmetrical on X-direction, and therefore, no matter which direction is movable module 1 swing towards around Y-axis, and the power that flexible base, board 300 acts on movable module 1 is all identical.Therefore, movable module 1 is suitably swung, revise thereby can carry out the hand shake reliably.And, in flexible base, board 300, be provided with dogleg section 301,302 at the extension of drawing, therefore along Y direction from movable module 1, make movable module 1 when X-axis is swung, the recovery of shape power during flexible base, board 300 distortion is not easy the swing of movable module 1 is impacted.

(structure of supporting mechanism 400)

Figure 11 is a key diagram of using the parts of formation supporting mechanism 400 grades in the optical unit 200 that has a shake correcting function of the present invention, Figure 11 (a) and (b), (c), (d) be respectively from the front side observation band stereographic map of base 220, spring members 280 and the sender unit cap 180 of the optical unit 200 of shake correcting function is arranged, stereographic map, the exploded perspective view of observing from rear side of observing from the front side and the exploded perspective view of observing from rear side.Figure 12 (a) and (b) are respectively to observe from X-direction to use key diagram and the cut-open view that has base 220, spring members 280 and the sender unit cap 180 of the optical unit 200 of shake correcting function of the present invention.

With reference to the base plate 181 of the sender unit cap 180 of Fig. 4, Fig. 5, Fig. 9 and Figure 10 explanation as shown in figure 11, when observing from the front side, the circular portion 186 of central authorities caves in towards the rear, and the middle body of circular portion 186 has protruded the round-ended cylinder shape towards the place ahead, forms the recess 187 (supporting with seat portion) of lower surface opening.

In the relative base 220 that disposes of rear side of sender unit cap 180, erect towards the front side from the outer peripheral edges of the base plate 221 of rectangle and to be formed with four side plates 222, one on Y direction in the opposing sideplates portion 222 is formed with the breach 222a that is used to draw with reference to the flexible base, board 300 of Fig. 9 and Figure 10 explanation.In base 220, be formed with (upside) outstanding supporting projections that the round-ended cylinder shape is arranged 227 at the middle body of base plate 221 towards the front side, on the front end face of supporting projections 227, be formed with hemispheric kick 227a.Therefore, shown in Figure 12 (a), sensors configured was covered 180 o'clock in the front side of base 220 (upside), shown in Fig. 4, Fig. 5 and Figure 12 (b), the supporting projections 227 of base 220 embeds in the recess 187 of sender unit cap 180, and the bottom lower surface 187a butt of kick 227a and recess 187.

Like this, in the present embodiment, between the sender unit cap 180 of the base 220 of fixed body 210 and movable module 1, the bottom lower surface 187a of recess 187 and the kick 227a of supporting projections 227 have formed the hinge portion, and this hinge portion has constituted makes the movable module 1 can be with respect to the supporting mechanism 400 of fixed body 210 swing.In the present embodiment, at the rear side of hand shake detecting sensor 170, supporting mechanism 400 is disposed at and hand shake detecting sensor 170 position overlapped on Z-direction.

Referring again to Figure 11, base 220 is punch process product of sheet metal, when (upside) observed from the front side, at the outer regions 221a on the base plate 221 and be formed with and be formed with between the middle section 221b of supporting projections 227 towards the recess 226 of rear side depression, this recess 226 is formed with the middle section 221b of supporting projections 227 with encirclement the form of three sides forms.In addition, in the base plate 221 of base 220, the form of three sides that is formed with the zone of supporting projections 227 with encirclement in middle section 221b is formed with slit 228, by this slit 228, has formed the plate spring part 229 of extending along Y direction.Therefore, supporting projections 227 is formed at the front end of plate spring part 229.Therefore, when plate spring part 229 was out of shape on Z-direction, supporting mechanism 400 integral body were along the Z-direction displacement.

Herein, plate spring part 229 is than the forward slightly side in the rear surface of base 220.Therefore, shown in Fig. 4 (a) and (b), the rear surface of plate spring part 229 is positioned at the given size G10 place of front side with respect to the end edge of the rear surface of base 220 and fixed cap 260.

(structure of spring members 280)

Dispose the spring members 280 of movable module 1 towards base 220 application of forces between the sender unit cap 180 of movable module 1 and base 220, these spring members 280 generations make the acting force of direction of the kick 227a butt of the bottom lower surface 187a of recess 187 and supporting projections 227.Spring members 280 is leaf springs of overlooking rectangular shaped, is by metal thin plates such as phosphor bronze, beryllium copper and nonmagnetic SUS class steel are carried out punch process or use the etching and processing of photolithography to form.

In spring members 280, be formed with the fixedly side linking part 281 that links with fixed body 210 four corner portions located.In the present embodiment, fixedly side linking part 281 is fixed on the rear side limiting component 270 of Fig. 4 in a plurality of parts that constitute fixed body 210～shown in Figure 7.In the present embodiment, be formed with aperture 281a on the fixedly side of spring members 280 linking part 281, on the other hand, four corner portions located on the face of rear side limiting component 270 rear sides are formed with kick 277a.Therefore, if the aperture 281a that the kick 277a of rear side limiting component 270 is embedded spring members 280 and will spring members 280 and rear side limiting component 270 location after carry out bonding or riveted joint etc., then fixing side linking part 281 can be linked with fixed body 210.

In addition, be formed with the movable module side linking part 282 of the essentially rectangular that the sender unit cap 180 with movable module 1 links at the middle body of spring members 280, be formed with circular hole 282a in the middle section of movable module side linking part 282, this hole 282a embeds for the outstanding towards the rear circular portion 186 of the base plate 181 of sender unit cap 180.In this spring members 280, make movable module side linking part 282 be fixed in the rear surface of the base plate 181 of sender unit cap 180 by method such as bonding.

Spring members 280 is universal reed shape, the movable module side linking part 282 that comprises two ends and central authorities and four fixing four narrow arms 283 being connected of side linking part 281.In the present embodiment, four arms 283 extend towards X-direction or Y direction along the limit portion of movable module side linking part 282 respectively., be installed at spring members 280 under the state of the optical unit 200 that has shake correcting function, movable module side linking part 282 is positioned at the fixedly front side of side linking part 281 herein.Therefore, arm 283 is with the direction application of force of movable module 1 towards base 220.

In the present embodiment, four arms 283 all extend towards circumferential same direction from fixing side linking part 281, and, four arms 283 each other with identical shape and size around optical axis by the equal angles arranged spaced.Therefore, four arms 283 all are the rotation symmetry with 90 degree, 180 degree, 270 degree.In addition, spring members 280 comprises the movable module side linking part 282 that the plate part by the area broad forms, and is connected with sender unit cap 180 by the area of this movable module side linking part 282 with broad.Therefore, spring members 280 produces the acting force of the bottom lower surface 187a that makes recess 187 and the direction of the kick 227a butt of supporting projections 227, and when movably module 1 is not subjected to external force the optical axis L of movable module is held in the posture parallel with the Z axle.

Herein, at the rear side of sender unit cap 180, be configured between spring members 280 and the base 220 with reference to first plate part 310 and second plate part 320 of the flexible base, board 300 of Fig. 9 and Figure 10 explanation.Therefore, in the spring members 280, on Y direction two fixedly side linking part 281 link by beam portion 284, but on X-direction, do not form beam portion 284, fixedly have breach between the side linking part 281.Therefore, the side on Y direction can fixedly passed flexible base, board 300 between the side linking part 281.

In addition, on the rear surface of the base plate 181 of sender unit cap 180, become with the zone of the movable module side linking part 282 that is connected with spring members 280 with the arm 283 of spring members 280 overlapping part on Z-direction and to compare towards the recess 181e of front side depression.Therefore, the base plate 181 of sender unit cap 180 does not contact with arm 283 fully, and even movable module 1 swing, when spring members 280 deforms, the base plate 181 of sender unit cap 180 can not contact with arm 283 yet.

(structure with the magnetic driving mechanism is revised in shake)

In the present embodiment, as Fig. 4, Fig. 5, Fig. 6 and shown in Figure 7, make the hand shake correction magnetic driving mechanism of the magnetic driving force of movable module 1 swing as generation, constituted by with supporting mechanism 400 being the first-hand shake correction magnetic driving mechanism 250x that fulcrum makes movable module 1 swing around X-axis, with supporting mechanism 400 is that fulcrum makes movable module 1 shake around the second-hand of Y-axis swing to revise two groups of hands shakes that form with magnetic driving mechanism 250y and revise and use the magnetic driving mechanism, the following describes above-mentioned first-hand shake correction and shake the structure that magnetic driving mechanism 250y is used in correction with magnetic driving mechanism 250x and second-hand.

At first, in fixed body 210, on the inside surface of two side plates 262 of fixed cap 260 respect to one another on the Y direction, keeping constituting first-hand shake correction and revising with magnet 240x (first-hand shake correction magnet), on the inside surface of two other side plate 262 of fixed cap 260 respect to one another on the X-direction, keeping constituting the second-hand and shaking to revise and shake correction with magnet 240y (second-hand shakes the correction magnet) with the hand of the rectangular plate shape of magnetic driving mechanism 250y with the hand shake of the rectangular plate shape of magnetic driving mechanism 250x.Herein, the hand shake is revised with magnet 240x, 240y and is formed by the tabular permanent magnet of rectangle.In the present embodiment, the hand shake is revised and is made of two tabular permanent magnets arranging on Z-direction with magnet 240x, 240y, and in these tabular permanent magnets, the outside surface side is magnetized to the different utmost points with inner surface side.In addition, in two tabular permanent magnets arranging on Z-direction, direction of magnetization is opposite.Revise with magnet 240x, 240y as for hand shake, also can on a slice permanent magnet, magnetize and the different polarity in the two poles of the earth.

In addition, in movable module 1, on the outside surface of two side plates 162 of module lid 160 respect to one another on the Y direction, be adhesively fixed with and constitute first-hand shake correction and revise with coil 230x (first-hand shake correction coil), on the outside surface of two other side plate 162 of module lid 160 respect to one another on the X-direction, be adhesively fixed with and constitute the second-hand and shake and revise with the hand shake correction of magnetic driving mechanism 250y with coil 230y (second-hand shakes the correction coil) with the hand shake of magnetic driving mechanism 250x.Above-mentioned hand shake is revised and is revised with magnet 240x, 240y relative with the hand shake respectively with coil 230x, 230y.In addition, the hand shake is revised and is revised relative with two tabular permanent magnets arranging on Z-direction of magnet 240x, 240y with the hand shake respectively with two effective edge portions along Z-direction of coil 230x, 230y.Herein, the lens that hand shake correction is shaken detecting sensor 170, imaging apparatus 15, lens actuating device 5 with each end and the hand of coil 230x, 230y drive with coil 30s, 30t same, are connected with external electric by flexible base, board 300.Be formed with less peristome 262a on the side plate 262 of fixed cap 260, this peristome 262a is used in the coating of hand shake being revised the bonding agent that strengthens usefulness after being fixed in side plate 262 with magnet 240x, 240y etc.

Like this, in the present embodiment, constituted on Y direction across supporting mechanism 400 two relative positions form a pair of and make movable module 1 around the first-hand shake correction of X-axis swing with magnetic driving mechanism 250x, use among the magnetic driving mechanism 250x in first-hand shake correction, two hands shakes are revised with coil 230x and are connected into the magnetic driving force towards same direction that when switching on movable module 1 is produced around X-axis by distribution.Therefore, when shake was revised with coil 230x energising to two hands, two first-hand shake corrections applied the moment towards same direction around the X-axis of passing supporting mechanism 400 with magnetic driving mechanism 250x to movable module 1.In addition, in the present embodiment, having constituted forming a pair of and movable module 1 is shaken around the second-hand of Y-axis swing across supporting mechanism 400 two relative positions on X-direction revises with magnetic driving mechanism 250y, shake correction the second-hand and use among the magnetic driving mechanism 250y, two hands shakes are revised with coil 230y and are connected into when switching on the magnetic driving force towards same direction of movable module 1 generation around Y-axis by distribution.Therefore, when shake was revised with coil 230y energising to two hands, two second-hands shook to revise with magnetic driving mechanism 250y movable module 1 are applied the moment towards same direction around the Y-axis of passing supporting mechanism 400.

In the present embodiment, fixed cap 260 is formed by magnetic, and shake is revised the yoke of using with magnet 240x, 240y and worked as hand.

Be equiped with in the mobile phone of band camera of the optical unit that has shake correcting function 200 of such formation, hands such as the gyrosensor shake detecting sensor 170 that hand shake when being used for shooting detects is installed in movable module 1, testing result according to this hand shake detecting sensor 170, be installed in control part adversary on the mobile phone of band camera and shake to revise to revise and switch on, movable module 1 is swung around X-axis and the side in Y-axis or both sides with a side or both sides among the coil 230y with coil 230x and hand shake.Synthesized if should swing, and then can make movable module 1 with respect to the whole swing of XY face.Therefore, can revise contingent all hands shakes such as mobile phone of band camera reliably.

Revise in order to carry out above-mentioned hand shake, in the present embodiment, hand is shaken detecting sensor 170 be installed in movable module 1 itself, control part (not shown) is shaken to revise with magnetic driving mechanism 250x and second-hand to first-hand shake correction and is carried out closed-loop control with magnetic driving mechanism 250y, is zero so that shake detecting sensor 170 detected angular velocity by hand.In addition, control part (not shown) is shaken to revise with magnetic driving mechanism 250x and second-hand to first-hand shake correction and is carried out closed-loop control with magnetic driving mechanism 250y so that by the integrated value of hand shake detecting sensor 170 detected angular velocity, be that angle correcting is zero.

Herein, shake detecting sensor 170 is installed on the movable module 1.Particularly, hand shake detecting sensor 170 is adhesively fixed with sender unit cap 180, and this sender unit cap 180 connects to one with module lid 160, thereby shake detecting sensor 170 is installed on the movable module 1.Therefore, the shake of optical axis L is directly detected by shake detecting sensor 170, thereby can revise shake accurately.

In addition, because the supporting mechanism 400 that constitutes with the rear side in movable module 1 is that the center makes movable module 1 swing, so the distortion of flexible base, board 300 is minimum.Therefore, the recovery of shape power during flexible base, board 300 distortion is little, and movable module 1 is promptly swung.

Herein, with the swing fulcrum of supporting mechanism 400 during as benchmark, movable module 1 is departed from the center of the magnetic force that magnetic force acts on movable module 1 on Z-direction Z-direction center.Therefore, having first-hand shake correction shakes to revise with magnetic driving mechanism 250y with magnetic driving mechanism 250x and second-hand and makes movable module 1 swing the required little advantage of magnetic driving force.

Relative therewith, with the swing fulcrum of supporting mechanism 400 during as benchmark, if the center of the magnetic force that magnetic force acts on movable module 1 on Z-direction near the Z-direction center of movable module 1, movable module 1 is swung significantly, therefore, has the good advantage of response that the hand shake is revised.

(structure of the movable range limiting mechanism of movable module 1 usefulness)

Figure 13 is the key diagram of parts of using the movable range of the movable module 1 of restriction in the optical unit 200 that has a shake correcting function of the present invention, and Figure 13 (a) and (b), (c), (d) are respectively the stereographic maps of observing the state behind movable module 1 configuration rear side limiting component 270 and front side limiting component 290 from the front side, stereographic map, the exploded perspective view of observing from rear side of observing from the front side and the exploded perspective view of observing from rear side.Figure 14 is the key diagram of mechanism of using the movable range of the movable module 1 of restriction in the optical unit 200 that has a shake correcting function of the present invention, Figure 14 (a), (b), (c) be respectively to observe from the front side to use the vertical view that has the state of optical unit behind movable module configuration rear side limiting component of shake correcting function of the present invention, pass near the Y2-Y2 ' cut-open view in corner of the optical unit 200 that has shake correcting function among Fig. 1 (a), near and the X2-X2 ' cut-open view in corner that passes the optical unit 200 that has shake correcting function among Fig. 1 (a).

As Fig. 4, Fig. 5, Fig. 6, Fig. 7 and shown in Figure 13, in the present embodiment, around movable module 1, dispose rectangular box-like front side limiting component 290 and rear side limiting component 270, utilize these front side limiting components 290 and rear side limiting component 270 limit movable module 1 the both direction on the X-direction, on the Y direction both direction, on the Z-direction both direction, around the both direction of X-axis, around the both direction of Y-axis with around the movable range of the both direction of Z axle.

At first, shown in Figure 14 (a) and (b), (c), when observing from the front side, rear side limiting component 270 comprises inwall 272a and inwall 272b respectively four corner portions located, it is relative that inwall 272a and the teat 108 that stretches out along X-direction and Y direction in the corner portions located of movable module 1 separate minimum clearance G X1 in the outside of X-direction, and it is relative that inwall 272b and teat 108 separate minimum clearance G Y1 in the outside of Y direction.Therefore, movable module 1 is at the both direction on the X-direction and the both direction on the Y direction, around the both direction of X-axis, be limited around the both direction of Y-axis with around the movable range of the both direction of Z axle.

Then, shown in Figure 14 (b), (c), rear side limiting component 270 comprise with teat 108 at the relative plate-like portion 274 of the rear side of Z-direction.In addition, the bight 297 of the frame of front side limiting component 290 part is relative in the front side of Z-direction with teat 108.Therefore, the movable range of the movable both direction of module 1 on Z-direction is limited.

Herein, front side limiting component 290 and rear side limiting component 270 are resinous, and be different during with metallic, has impact absorbency and absorption of vibrations.Therefore, even movable module 1 and front side limiting component 290 and rear side limiting component 270 butts can not produce unnecessary sound and vibration yet.

In addition, in Fig. 4, Fig. 5 and the supporting mechanism 400 shown in Figure 12, the supporting projections 227 of base 220 embeds in the recess 187 of sender unit cap 180, in the present embodiment, this supporting mechanism 400 has also limited the movable range of movable module 1 at both direction on the X-direction and the both direction on the Y direction.That is, as shown in Figure 4, between the inner peripheral surface of the outer peripheral face of supporting projections 227 and recess 187, open minimum clearance G X2, open minimum clearance G Y2 in the Y direction sky in the X-direction sky.

In addition, in Fig. 4, Fig. 5 and the supporting mechanism 400 shown in Figure 12, the bottom lower surface 187a butt of the kick 227a of the supporting projections 227 of base 220 and recess 187, this supporting mechanism 400 have also limited the moving towards the Z-direction rear side of movable module 1.Herein, from movable module 1 because of the impact of dropping etc. towards the rapid displacement of the rear side of Z-direction, till plate-like portion 274 butts of the teat 108 of movable module 1 and rear side limiting component 270, the load centralization of the bottom lower surface 187a of kick 227a and recess 187, the bottom lower surface 187a of kick 227a and recess 187 may be out of shape.Yet in the present embodiment, supporting projections 227 is formed at the leading section of the plate spring part 229 that forms on base 220, and therefore, when movable module 1 was indexed to the rear side of Z-direction, supporting mechanism 400 integral body were along the Z-direction displacement.Therefore, during the impact that is subjected to dropping etc., even the load centralization of the bottom lower surface 187a of kick 227a and recess 187, the bottom lower surface 187a of kick 227a and recess 187 can not be out of shape yet.

Herein, shown in Fig. 4 (a) and (b), plate spring part 229 is positioned at the given size G10 place of front side with respect to the end edge of the rear surface of base 220 and fixed cap 260.Therefore, though movable module 1 because of the impact of dropping etc. towards the rapid displacement of the rear side of Z-direction, plate spring part 229 is towards the rear side displacement, plate spring part 229 can not be projected into rear side from the rear surface of base 220 and the end edge of fixed cap 260 yet.

(the main effect of present embodiment)

As mentioned above, in the optical unit that has shake correcting function 200 of present embodiment, in order to revise the shake that is dithered as representative with the hand of movable module 1, utilized the magnetic driving mechanism, therefore, can under the situation that need not mechanically be connected and fixed body 210 and movable module 1, carry out the shake correction of movable module 1 by driving mechanism.Therefore, the assembling of optical unit 200 that has shake correcting function is easy, and resistance to vibration is good.

In addition, in the optical unit that has shake correcting function 200 of present embodiment, on Y direction, dispose two paired first-hand shake corrections with magnetic driving mechanism 250x, and on X-direction, dispose two paired second-hands and shake and revise with magnetic driving mechanism 250y across two positions of the both sides of supporting projections 227 across two positions of the both sides of supporting projections 227.In addition, two first-hand shake corrections produce respectively with magnetic driving mechanism 250x and make the magnetic force of movable module 1 towards same direction swing, and two second-hands shake to revise with magnetic driving mechanism 250y and produce the magnetic force that movable module 1 is swung towards same direction respectively.

Therefore, with only dispose first-hand shake correction with the structure of magnetic driving mechanism 250x, only shake to revise the side configuration second-hand of supporting projections 227 and use the structure of magnetic driving mechanism 250y different in a side of supporting projections 227, driving force is stable, thereby can revise the hand shake accurately.For example, two first-hand shake corrections are with among the magnetic driving mechanism 250x, constituting first-hand shake correction revises with the shake of the hand of magnetic driving mechanism 250x and revises pass, position with coil 230x with magnet 240x and hand shake and tie up to a first-hand shake correction when being partial to the direction that the magnetic driving force diminishes among the magnetic driving mechanism 250x, can deflection revise a first-hand shake correction in magnetic driving mechanism 250x in another first-hand shake correction and revise the direction of revising the dislocation of using coil 230x with magnet 240x and hand shake with the hand shake of magnetic driving mechanism 250x, be that the magnetic driving force becomes big direction, therefore, first-hand shake correction is stable with the driving force of magnetic driving mechanism 250x.This effect is shaken for the second-hand and is revised with magnetic driving mechanism 250y too.

In addition, in the above-mentioned embodiment, shaking correction with magnetic driving mechanism 250x and second-hand in first-hand shake correction uses in any of magnetic driving mechanism 250y, all be that a side that gets final product dynamic model piece 1 on movable side keeps the coil (hand shake revise with coil 230x, 230y) lighter than magnet, the fixed body 210 sides maintenance magnet heavier (the hand shake is revised with magnet 240x, 240y) than coil.Therefore, can be with the movable module 1 of less torque actuated, and the response of revising is good.

In addition, when movable module 1 side configuration coil (the hand shake is revised with coil 230x, 230y), coil need be connected with external electric, but in the present embodiment, each end that the hand shake is revised with coil 230x, 230y is connected with external electric by flexible base, board 300 with coil 30s, 30t equally with the lens driving of hand shake detecting sensor 170, imaging apparatus 15, lens actuating device 5.Therefore, in the present embodiment, by shared flexible wiring substrate 300, simplified structure correspondingly, and can reduce cost.

In addition, can swing, between the sender unit cap 180 of the base 220 of fixed body 210 and movable module 1, constitute the supporting mechanism 400 that comprises the hinge portion, therefore, can prevent the displacement on Z-direction of movable module 1 in order to make movable module 1.In addition, the leaf spring of the universal reed shape that uses as spring members 280 comprises long arm 283, and therefore, deflection (addendum modification) is higher with the linearity of spring force, carries out the shake correction of movable module easily.

In addition, in the present embodiment, by front side limiting component 290 and rear side limiting component 270 etc., movable module 1 the both direction on the X-direction, on the Y direction both direction, on the Z-direction both direction, around the both direction of X-axis, be limited around the both direction of Y-axis with around the movable range of the both direction of Z axle.Therefore, movable not excessively displacement of module 1, thus can prevent the plastic yield etc. of spring members 280.

[other embodiment]

(structure with the magnetic driving mechanism is revised in the hand shake)

In the above-mentioned embodiment, what adopt is such structure: shake with magnetic driving mechanism 250x and second-hand in first-hand shake correction and revise in any that use magnetic driving mechanism 250y, all be dynamic model piece 1 side to keep the hand shake to revise, keep the hand shake to revise with magnet (the hand shake is revised with magnet 240x, 240y) in fixed body 210 sides with coil (the hand shake is revised with coil 230x, 230y) on movable side.But, also can adopt such structure: shake with magnetic driving mechanism 250x and second-hand to revise in first-hand shake correction and use among the magnetic driving mechanism 250y, a hand shake correction is can dynamic model piece 1 side keep hand shake correction coil on movable side with the magnetic driving mechanism, keep the hand shake to revise in fixed body 210 sides and use magnet, another hand shake correction is can dynamic model piece 1 side keep hand shake correction magnet on movable side with the magnetic driving mechanism, keeps the hand shake to revise in fixed body 210 sides and uses coil.

In the above-mentioned embodiment, shake is revised and is used the magnetic driving mechanism as hand, movable module 1 is provided with first-hand shake correction shakes correction magnetic driving mechanism 250y with magnetic driving mechanism 250x and second-hand, but also can be like this: apply the present invention to only be provided with first-hand shake correction and shake with magnetic driving mechanism 250x and second-hand and revise with one structure among the magnetic driving mechanism 250y, only be provided with in the both sides of supporting projections 227 with two and shake correction magnetic driving mechanism 250y with magnetic driving mechanism 250x or second-hand for a pair of first-hand shake correction only to revise the shake of the direction that is easy to generate the hand shake when user uses.In this case, adopt the structure that direction is defined in Y direction of drawing to get final product with flexible base, board 300.

(structure of force application part)

In the above-mentioned embodiment, as force application part, used the spring members 280 that comprises each other towards circumferential linearly extended many arms 287 of same direction, but so long as many structures that arm 287 extends towards same direction, the structure that then also can adopt arm 287 limit curved edges to extend.

In the above-mentioned embodiment, as being used for the force application part of movable module 1 towards base 220 application of forces, only used spring members 280, but as this force application part, also can use by magneticaction with movable module 1 towards the magnetic spring of base 220 application of forces, by mechanism with the spring members of movable module 1 towards base 220 application of forces.In addition, as magnetic spring, adopt the hand shake on fixed body 210 to revise the structure that disposes magnetic with the rear side of magnet 240x, 240y.When constituting like this, can keep the state that movable module 1 supported body 400 supports reliably.In addition, during the neutrality that hand shake correction stops to drive with the magnetic driving mechanism, utilize magnetic spring with movable module 1 towards base 220 application of forces, as for spring members 280, can make it be in the non-deformation state that does not produce acting force.As if constituting like this, then when movable module 1 was swung, spring members 280 was out of shape, and power plays a role.That is, during movable module 1 was non-oscillatory, spring members 280 kept even shapes.Therefore, the deflection that can effectively utilize power that spring members 280 is subjected to and spring members 280 has the part of the linearity, therefore, movable module 1 is suitably swung, and can carry out the hand shake reliably and revise.

Among the present invention, comparatively it is desirable in spring members 280, coupling part, arm 283 at arm 283 and fixation side linking part 281 are connected with absorption of vibrations materials such as gel rubber material, elastic sheet material with the coupling part or arm 283 integral body of movable module side linking part 282, if take such countermeasure, then when movable module 1 is swung, the vibration of arm 283 is stopped rapidly, therefore, the vibration of movable module 1 is stopped rapidly.

(structure of swing support portion)

In the above-described embodiment, be formed with kick 227a at the front end of supporting projections 227, but also can form supporting projections 227 integral body hemispherical.In addition, in the above-mentioned embodiment, on base 220, be formed with supporting projections 227, on sender unit cap 180, be formed with recess 187, but also can on sender unit cap 180, form supporting projections, on base 220, form the recess of accepting supporting projections.

In addition, it can be that the center is when swinging with a side opposite with the side that is taken that movable module 1 is supported to, replacement as the hinge portion, also many hoist cables that extend towards the side that is taken from a side opposite with the side that is taken can be used as the swing support portion, and utilize these many hoist cables that movable module 1 is supported to and can swing.

(other structure)

In the above-mentioned embodiment, apply the present invention to use lens drive with coil 30s, 30t be the quadrangular barrel shape, lens drive and are the optical unit that has shake correcting function 200 of flat lens driving module 1a with magnet 17, be the quadrangular barrel shape and dispose the optical unit that have shake correcting function of lens driving but also can apply the present invention to use the lens driving to be cylindric, housing 18 with the movable module of magnet 17 in the corner portions located of housing 18 with coil 30s, 30t.

In addition, in the above-mentioned embodiment, used the lens that hand shake correction is shaken detecting sensor 170, imaging apparatus 15, lens actuating device 5 with coil 230x, 230y, hand to drive whole shared flexible wiring substrates 300 with coil 30s, 30t, but it is not will all parts all shared, according to wiring condition, also can adopt parts appropriate combination ground is used separately or shared flexible wiring substrate.

In the above-mentioned embodiment, what illustrate is to apply the present invention to the employed example that has the optical unit 200 of shake correcting function of the mobile phone of camera, but also the employed examples that has the optical unit 200 of shake correcting function such as applying the present invention to slim digital camera can be described.In addition, in the above-mentioned embodiment, what illustrate is that the example of the lens actuating device 5 that the moving body 3 that comprises lens 121 is driven in the magnetic mode along the direction of optical axis L is also arranged in supporter 2 upper supports except lens 121 and imaging apparatus 15 in the movable module 1, but also can apply the present invention to the optical unit that has shake correcting function that movable module 1 is not installed the type that focuses of lens actuating device 5.

In addition, the present invention not only can be applicable to take, also can be applicable to laser pen, carry with and the projection display equipment of vehicle mounted etc., penetrate the optical device of light.

The embodiments of the present invention of energy miniaturization, slimming then, are described with reference to the accompanying drawings.In the above-described embodiment, for can be with the movable module 1 of less torque actuated, improve the response of revising, the coil of having represented to keep lighter on movable side, keep example on fixing side than the magnet of coil weight than magnet, but the energy miniaturization that the following describes, the present invention of slimming are applicable to the position relation of any coil and magnet, therefore, to keeping magnet on movable side, describing at the fixing embodiment of side holding coil.

(structures of optical devices for shooting)

Figure 15 is the stereographic map of the related optical unit that has shake correcting function 100 of embodiments of the present invention.Figure 16 is the cut-open view in the E-E cross section of Figure 15.Figure 17 is that the vertical view with coil 23 is revised in hand shake shown in Figure 16.Figure 18 is used to illustrate hand shake correction shown in Figure 16 figure with the magnetic line of force of magnet 21 generations.Figure 19 is used to illustrate by hand shake shown in Figure 16 being revised the figure of the direction of the electromagnetic force that produces with coil 23 power supplies.

In the following explanation, as shown in figure 15, three orthogonal directions are made as directions X, Y direction and Z direction respectively.In addition, the X1 direction side of Figure 15 is made as " right side " side, X2 direction side is made as " left side " side, Y1 direction side is made as " preceding " side, Y2 direction side is made as " back " side, Z1 direction side is made as " on " side, Z2 direction side is made as the D score side.In the present embodiment, the direction (optical axis direction) of the optical axis L of the optical unit that have shake correcting function 100 of Z direction (above-below direction) when not swinging is consistent, but owing to have the full swing angle minimum (for example about 2 °) of the optical unit 100 of shake correcting function, even therefore when optical unit 100 swings that have shake correcting function, above-below direction is also roughly consistent with optical axis direction.

The optical unit that has shake correcting function 100 of present embodiment is the small-sized and slim camera that is installed on the portable sets such as mobile phone, and integral body forms roughly rectangular-shaped.As Figure 15, shown in Figure 16, this optical unit 100 that has shake correcting function comprises: be equiped with not shown lens and imaging apparatus lens driving module 201, be used for sensor 171 that the variation to the inclination of lens driving module 201 detects, support of lens driver module 201 supporter 45, make the wobble drive mechanism 46 of lens driving module 201 swings.

The same with above-mentioned embodiment, on lens driving module 201, be equiped with lens and imaging apparatus.Particularly, be equiped with lens, the lower end of lens driving module 201 illustrates, be equiped with imaging apparatus in above-mentioned embodiment in the upper end side of lens driving module 201.In addition, on lens driving module 201, be equiped with the lens actuating device that is used for driving lens along optical axis direction.Lens driving module 201 can adopt the identical structure with said lens driver module 1a, and in addition, lens actuating device also can adopt the structure identical with said lens driving mechanism 5.

Lens driving module 201 integral body form roughly rectangular-shaped.The front and back of this lens driving module 201 and about side tegmentum parts 9 cover the lower ending opening of this cover 9, and form the roughly quadrangular barrel shape at the end.Cover 9 is parts identical with the module lid 160 of above-mentioned embodiment, forms with magnetic material.In addition, cover 9 usefulness metal materials form.Be formed with circular through hole 9a in the bottom of the cover 9 that is disposed at upper end side.In addition, be formed with the 9b of eaves portion that enlarges towards the outside of the outside of fore-and-aft direction and left and right directions in the lower end of cover 9.The front and back of cover 9 and about the side form and the optical axis direction almost parallel, on these sides, be fixed with the aftermentioned hand shake that constitutes wobble drive mechanism 46 respectively and revise with magnet 21.

Sensor 171 is to be used for the gyroscope that the variation to the inclination of lens driving module 201 detects.That is, sensor 171 is to be used for the angular-rate sensor that the angular velocity to lens driving module 201 detects.This sensor 171 is configured in the downside of lens driving module 201.Particularly, sensor 171 is configured in the downside of lens driving module 201 through the form of the approximate centre of sensor 171 with optical axis L.On this sensor 171, be connected with flexible printed circuit board (FPC) 10.This FPC10 also be installed in optical unit 100 on imaging apparatus be connected.FPC10 the lower end side of optical unit 100 drawn around, for example drawn from the left surface of optical unit 100.

In addition, sensor 171 is configured in the inside of sender unit cap parts 111, and the upper end open of these sender unit cap parts 111 has the end, and forms flat roughly quadrangular barrel shape.Be formed with the bearing surface 111a with fulcrum projection 115b butt at the center of the bottom of the sender unit cap parts 111 that are disposed at lower end side, this bearing surface 111a forms plane.In addition, be formed with from the 111b of eaves portion of the 9b of the eaves portion butt of downside and cover 9 in the upper end of sender unit cap parts 111, the 111b of this eaves portion forms towards the outside of the outside of fore-and-aft direction and left and right directions and enlarges.In the present embodiment, 9b of eaves portion and the 111b of eaves portion are by fixed to one another.That is, sender unit cap parts 111 are fixed in the lower end of cover 9.

In the present embodiment, the supporter 45 that lens driving module 201, sensor 171, cover 9 and sender unit cap parts 11 are equivalent to the fixed body 210 of above-mentioned embodiment supports to and can swing.That is, in the present embodiment, lens driving module 201, sensor 171, cover 9 and sender unit cap parts 11 have constituted can be with respect to the movable module 202 of supporter 45 swings.

Supporter 45 comprises: constitute the lower surface of optical unit 100 base body 115, constitute optical unit 100 front and back and about the shell 116 (being equivalent to said fixing lid 260) of outer peripheral face.On shell 116, be fixed with the limiting component 118 of the hunting range that is used to limit movable module 202.In addition, on limiting component 118, be fixed with movable module 202 is supported to the leaf spring 117 that can swing.

Base body 115 forms essentially rectangular.Approximate centre at this base body 115 is formed with side-prominent teat 115a up.In addition, be formed with the fulcrum projection 115b of the swing fulcrum of the movable module 202 of conduct at the upper surface of teat 115a.That is, in the present embodiment, dispose the fulcrum of the swing of movable module 202 at the downside of movable module 202.It is planar that this fulcrum projection 115b for example forms hemisphere, and with the bearing surface 111a butt of sender unit cap parts 111.In the present embodiment, fulcrum projection 115b and bearing surface 111a have constituted the fulcrum 119 as the oscillation centre of lens driving module 201.This fulcrum 119 is disposed at the position of the optical axis L process of lens driving module 201.The optical axis L of lens driving module 201 is disposed at the center of movable module 202.

Shell 116 forms the roughly quadrangular barrel shape of top and bottom opening.The front and back of shell 116 and about the side form and the optical axis direction almost parallel.In addition, fixing base body 115 in the lower end side of this shell 116.In addition, the side of the front and back of shell 116 and about the approximate centre of side be formed with the peristome 116a that runs through each side, this peristome 116a is used to dispose the aftermentioned hand shake that constitutes wobble drive mechanism 46 and revises extension line with coil 23.This peristome 116a forms essentially rectangular.The shell 116 usefulness nonmagnetic substances of present embodiment form.In addition, shell 116 usefulness metal materials form.

Leaf spring 117 integral body form essentially rectangular.Four angles of leaf spring 117 are fixed on the limiting component 118, are fixing movable module 202 at the central part of leaf spring 117.That is, this leaf spring 117 is to comprise: the spring portion that is fixed on fixed part on the limiting component 118, keeps the maintaining part of movable module 202, fixed part is connected with maintaining part.In the present embodiment, fixing sender unit cap parts 111 at the central part of leaf spring 117, leaf spring 117 keeps the lower end side of movable module 202.

Leaf spring 117 is fixed on the limiting component 118 with the state of deflection, be used to make the pressurization (that is, producing) of the reliable butt of fulcrum projection 115b of the bearing surface 111a of sender unit cap parts 111 and base body 115 with the acting force of movable module 202 towards the below application of force with generation.In addition, the leaf spring 117 of present embodiment is fixed on the shell 116 by limiting component 118.That is, on the limiting component 118 that is fixed in shell 116 inner peripheral surfaces, fixing four angles of leaf spring 117.

Limiting component 118 is fixed on the inner peripheral surface of shell 116.Particularly, two limiting components 118 respectively can with the position of the upper surface butt of the 9b of eaves portion of cover 9 and can with the position of the lower surface butt of the 111b of eaves portion of sender unit cap parts 111 on be fixed in the inner peripheral surface of shell 116, limiting component 118 and the 9b of eaves portion, 111b have limited the hunting range of movable module 202.

Wobble drive mechanism 46 comprises: the hand shake is revised with magnet 21, is revised with coil 23 with the hand shake of magnet 21 relative configurations with hand shake correction.The wobble drive mechanism 46 of present embodiment comprises that the shake of four hands is revised with magnet 21 and four hands shakes and revises with coils 23.

The hand shake is revised and is formed the tabular of essentially rectangular with magnet 21.In addition, the hand shake is revised and is made of the first magnet sheet 21a and these two magnet sheets of the second magnet sheet 21b with magnet 21.Particularly, under the state of the upper surface butt of the lower surface of the first magnet sheet 21a and the second magnet sheet 21b, the first magnet sheet 21a and the second magnet sheet 21b are adhesively fixed, and revise with magnet 21 thereby form the hand shake.It is identical with height, width and the thickness of the second magnet sheet 21b that height, width and the thickness of the first magnet sheet 21a forms.

Hand shake revise with magnet 21 the side of the front and back of cover 9 with about the side on be fixed with one respectively.That is, the hand shake is revised and is fixed on the outer peripheral face of cover 9 with magnet 21, and is configured in the inside of shell 116.In addition, the hand shake is revised with magnet 21 with lens driving module 201 swings.As mentioned above, cover 9 usefulness magnetic materials form, 9 shake corrections in one's hands of cover function of the back yoke of magnet 21.The cover 9 of present embodiment is to keep the hand shake to revise the magnet holding member of using magnet 21.

In the present embodiment, be fixed on hand shake on the left and right side of cover 9 and revise and be magnetized to magnet 21: it is different that the magnetic pole that upward forms on magnetic pole and the left surface of formation with the right surface of magnet 21 is revised in the hand shake.In addition, being fixed on hand shake on the left and right side of cover 9 revises and also is magnetized to magnet 21: the magnetic pole that forms on the magnetic pole that forms on the lateral surface of the first magnet sheet 21a of left and right directions and the lateral surface of the second magnet sheet 21b different (that is, the magnetic pole that forms on the medial surface of the magnetic pole that forms on the medial surface of the first magnet sheet 21a of left and right directions and the second magnet sheet 21b is different).

Similarly, being fixed on hand shake on the front and back sides of cover 9 revises and be magnetized to magnet 21: the magnetic pole that forms on the magnetic pole that forms on the front surface of hand shake correction with magnet 21 and the rear surface is different.In addition, being fixed on hand shake on the side of front and back of cover 9 revises and also be magnetized to magnet 21: the magnetic pole that forms on the magnetic pole that forms on the lateral surface of the first magnet sheet 21a of fore-and-aft direction and the lateral surface of the second magnet sheet 21b is different.

For example, be fixed on the right flank that hand shake on the right flank of cover 9 revises with the first magnet sheet 21a of magnet 21 and be magnetized to the S utmost point, left surface is magnetized to the N utmost point, and the right flank that above-mentioned hand shake is revised with the second magnet sheet 21b of magnet 21 is magnetized to the N utmost point, and left surface is magnetized to the S utmost point.Similarly, be fixed on the left surface that hand shake on the left surface of cover 9 revises with the first magnet sheet 21a of magnet 21 and be magnetized to the S utmost point, right flank is magnetized to the N utmost point, and the left surface that above-mentioned hand shake is revised with the second magnet sheet 21b of magnet 21 is magnetized to the N utmost point, and right flank is magnetized to the S utmost point.

In addition, for example, be fixed on the trailing flank that hand shake on the trailing flank of cover 9 revises with the first magnet sheet 21a of magnet 21 and be magnetized to the N utmost point, leading flank is magnetized to the S utmost point, the trailing flank that above-mentioned hand shake is revised with the second magnet sheet 21b of magnet 21 is magnetized to the S utmost point, and leading flank is magnetized to the N utmost point.Similarly, be fixed on the leading flank that hand shake on the leading flank of cover 9 revises with the first magnet sheet 21a of magnet 21 and be magnetized to the N utmost point, trailing flank is magnetized to the S utmost point, and the leading flank that above-mentioned hand shake is revised with the second magnet sheet 21b of magnet 21 is magnetized to the S utmost point, and trailing flank is magnetized to the N utmost point.

Hand shake revise with coil 23 with comprise cover lead around the insulation tunicle and cover the insulation tunicle around the fusion line of fusion tunicle be wound into the hollow shape and form hollow coil such as (that is, do not comprise bobbin roll up core).The hand shake correction of present embodiment is wound into essentially rectangular with coil 23 by fusion line and forms.Particularly, hand shake is revised with coil 23 and is wound into roughly rectangle by fusion line and forms.That is, as shown in figure 17, hand shake is revised with coil 23 by parallel to each other two long leg 23a, 23b with form to such an extent that lack and two short leg 23c, 23d parallel to each other constitute than long leg 23a, 23b.In addition, hand shake correction is the roughly certain pancake coils of thickness with coil 23.

Hand shake revise with the film of coil 23 by insulativity the side of the front and back of shell 116 with about the side on be fixed with one respectively.That is, the hand shake is revised and is fixed on the inner peripheral surface of shell 116 by film with coil 23.In addition, hand shake is revised with coil 23 so that the length direction of short leg 23c, the 23d form consistent with above-below direction is fixed on the shell 116.That is, hand shake is revised with coil 23 so that the length direction of long leg 23a, the 23b form consistent with left and right directions or fore-and-aft direction is fixed on the shell 116.In the present embodiment, the long leg 23a that is configured in upside becomes the first limit portion, and the long leg 23b that is configured in downside becomes the second limit portion.

As shown in figure 16, hand shake is revised with magnet 21 and hand shake correction with state relative dispose of coil 23 to open specified gap in left and right directions or the fore-and-aft direction sky.Particularly, hand shake correction is revised with upside relative dispose of coil 23 in fulcrum 119 with magnet 21 and hand shake, and dispose relatively with the state that sky is opened specified gap, so that even movable module 202 is that fulcrum is swung with fulcrum 119, the hand shake is revised with magnet 21 and also can not contacted with coil 23 with hand shake correction.In the present embodiment, shake when revising with coil 23 power supplies adversary not, as shown in Figure 2, movable module 202 can be positioned at the neutral position that with respect to supporter 45.

As mentioned above, hand shake correction is magnetized to magnet 21: the magnetic pole that forms on the magnetic pole that forms on the lateral surface of the first magnet sheet 21a of left and right directions (or fore-and-aft direction) and the lateral surface of the second magnet sheet 21b is different.That is, revise with the revising on the opposite face relative of magnet 21, be formed with the two poles of the earth magnetic pole overlapping on optical axis direction (the N utmost point and the S utmost point) with coil 23 with the hand shake in hand shake.Therefore, hand shake is revised the magnetic line of force with magnet 21 generations for example to become arrow shown in Figure 180 such.

Therefore, for example at the upside of the center C L1 on optical axis direction of the first magnet sheet 21a, revise direction that the outside with the fore-and-aft direction (or left and right directions) of the relative opposite face of coil 23 is formed with the magnetic line of force for slightly away from the zone 30 of the direction of fulcrum 119 (oscillation centre of lens driving module 201) (below should zone 30 conducts " first area 30 ") with the hand shake at the first magnet sheet 21a.Promptly, the first magnet sheet 21a to be formed on the magnetic force center of revising the magnetic pole (the N utmost point) on the opposite face relative with coil 23 with hand shake be the upside of center C L1, be formed with first area 30 with hand shake correction with the outside of the fore-and-aft direction (or left and right directions) of the relative opposite face of coil 23 at the first magnet sheet 21a.

In addition, at the upside of the center C L2 on optical axis direction of the second magnet sheet 21b, revising direction that the outside with the fore-and-aft direction (or left and right directions) of the relative opposite face of coil 23 is formed with the magnetic line of force with the hand shake and be towards the zone 31 of the direction of fulcrum 119 (oscillation centre of lens driving module 201) (below should zone 31 conducts " second area 31 ") slightly at the second magnet sheet 21b.Promptly, the second magnet sheet 21b to be formed on the magnetic force center of revising the magnetic pole (the S utmost point) on the opposite face relative with coil 23 with hand shake be the upside of center C L2, be formed with second area 31 with hand shake correction with the outside of the fore-and-aft direction (or left and right directions) of the relative opposite face of coil 23 at the second magnet sheet 21b.

In the present embodiment, as Figure 16, shown in Figure 180, hand shake correction is revised with coil 23 relative being configured to magnet 21 and hand shake: the upside that is configured in the bearing surface 27 of the first magnet sheet 21a and the second magnet sheet 21b with the center C L3 on optical axis direction of coil 23 is revised in the hand shake.That is, hand shake is revised center C L3 with coil 23 and is disposed to liken on optical axis direction to the hand shake and revises the position of the bearing surface 27 at the magnetic force center of using magnet 21 away from fulcrum 119 (oscillation centre of lens driving module 201).

Particularly, as shown in figure 18, the center C L4 on optical axis direction of long leg 23a is configured in the upside of the center C L1 of the first magnet sheet 21a, and the center C L5 on optical axis direction of long leg 23b is configured in the downside of bearing surface 27 and is configured in the upside of the center C L2 of the second magnet sheet 21b.Promptly, the center C L4 of long leg 23a be configured in the first magnet sheet 21a to be formed on the magnetic force center of revising with the magnetic pole on the relative opposite face of coil 23 with hand shake be the upside of center C L1, and, the center C L5 of long leg 23b be configured in hand shake revise with magnet 21 to be formed on the border of revising with two magnetic poles on the relative opposite face of coil 23 with the hand shake be the downside of bearing surface 27, and the center C L5 of long leg 23b is configured in being formed on of the second magnet sheet 21b, and to shake correction with hand be the upside of center C L2 with the magnetic force center of the magnetic pole on the relative opposite face of coil 23.

In other words, in the present embodiment, hand shake is revised to revise with magnet 21 and hand shake and is configured to coil 23: the direction that long leg 23a is configured in the magnetic line of force is slightly in the first area 30 away from the direction of fulcrum 119 (oscillation centre of lens driving module 201), and the direction that long leg 23b is configured in the magnetic line of force is slightly in the second area 31 of the direction of fulcrum 119 (oscillation centre of lens driving module 201).

Therefore, as shown in figure 19, can make by the adversary and shake the direction of revising the electromagnetic force F1 that in long leg 23a, produces with coil 23 power supplies, roughly consistent with the tangential direction that with fulcrum 119 is center and the circle that passes through long leg 23a.In addition, can make by the adversary and shake the direction of revising the electromagnetic force F2 that in long leg 23b, produces with coil 23 power supplies, roughly consistent with the tangential direction that with fulcrum 119 is center and the circle that passes through long leg 23b.That is, can make to shake to revise with coil 23 power supplies and in the hand shake by the adversary and revise with the electromagnetic force F1 that produces in the coil 23, the direction of F2, being used for fulcrum 119 with generation be that the center makes the direction of the oscillatory forces that movable module 202 swings roughly consistent.In the present embodiment, the hand shake is revised and is fixed on the shell 116 with coil 23, and therefore, the hand shake is revised and is driven with magnet 21 sides, and movable module 202 is that (rotation) swung at the center with fulcrum 119, and the hand shake is revised.

Have in the optical unit that has shake correcting function 100 of said structure, when utilizing sensor 171 to detect the variation of inclination of lens driving module 201 (when detecting the shake (vibration) of lens driving module 201), testing result according to sensor 171, the adversary shakes and revises with coil 23 power supplies, movable module 202 is that swing at the center with fulcrum 119, will shake correction.Particularly, have in the optical unit 100 of shake correcting function, when selling shake according to the testing result detection of sensor 171, the adversary shakes and revises with coil 23 power supplies, movable module 202 is that (rotation) swung at the center with fulcrum 119, and the hand shake is revised.

In the present embodiment, fulcrum 119, wobble drive mechanism 46, leaf spring 117 that utilization is formed by bearing surface 111a and fulcrum projection 115b, thus the testing result that has constituted according to sensor 171 makes lens driving module 201 swing the shake correction mechanism of revising shake with respect to supporter 45.Promptly, in the present embodiment, utilize fulcrum 119, wobble drive mechanism 46, leaf spring 117, to make lens driving module 201 be that fulcrum is swung the hand shake correction mechanism of revising the hand shake with fulcrum 119 thereby constituted testing result according to sensor 171.

(the main effect of present embodiment)

As mentioned above, in the present embodiment, hand shake is revised with magnet 21 and hand shake and revised with coil 23 relative configuration of upside as the fulcrum 119 of the oscillation centre of lens driving module 201, and is configured to relatively: the hand shake is revised center C L3 with coil 23 and is disposed at and shakes correction than hand use the position of the bearing surface 27 of magnet 21 away from fulcrum 119 on optical axis direction.Particularly, hand shake is revised to revise with magnet 21 and hand shake and is configured to coil 23: the center C L4 of long leg 23a is configured in the hand that is formed on of the first magnet sheet 21a, and to shake correction be the upside of center C L1 with the magnetic force center of the magnetic pole on the relative opposite face of coil 23, and, the center C L5 of long leg 23b be configured in hand shake revise with magnet 21 to be formed on the border of revising with two magnetic poles on the relative opposite face of coil 23 with the hand shake be the downside of bearing surface 27, and the center C L5 of long leg 23b is configured in being formed on of the second magnet sheet 21b, and to shake correction with hand be the upside of center C L2 with the magnetic force center of the magnetic pole on the relative opposite face of coil 23.

Promptly, in the present embodiment, hand shake is revised with coil 23 and is configured in direction that the hand shake revises the magnetic line of force that produces with magnet 21 for being slightly in the second area 31 of the direction of fulcrum 119 (oscillation centre of lens driving module 201) away from the direction of the first area 30 of the direction of fulcrum 119 (oscillation centre of lens driving module 201) and the magnetic line of force slightly.More specifically, long leg 23a is configured in the first area 30, and long leg 23b is configured in the second area 31.

Therefore, as mentioned above, shaking by the adversary that the direction of revising the electromagnetic force F1, the F2 that produce with coil 23 power supplies and generation be used for fulcrum 119 is that the center makes the direction of the oscillatory forces that movable module 202 swings roughly consistent.Therefore, in the present embodiment, can effectively utilize the hand shake and revise the magnetic flux that produces with magnet 21, thereby improve the driving force of wobble drive mechanism 46.Consequently, in the present embodiment,, also can obtain the driving force that enough being used to makes lens driving module 201 swings even when optical unit 100 miniaturizations that have shake correcting function, slimming.

Particularly in the present embodiment, long leg 23a is configured in the first area 30, long leg 23b is configured in the second area 31, therefore, can produce electromagnetic force F1, F2 with the roughly consistent direction of the generation direction of oscillatory forces of movable module 202 that with fulcrum 119 is the center among both at long leg 23a, 23b.Therefore, in the present embodiment, can effectively improve the driving force of wobble drive mechanism 46.

In addition, in the present embodiment, hand shake is revised center C L3 with coil 23 and is disposed on optical axis direction than the hand shake and revises the bearing surface 27 of using magnet 21 position away from fulcrum 119, therefore, with hand shake revise bearing surface 27 with magnet 21 with hand shake revise center C L3 with coil 23 and be disposed at comparing during from equidistant position that fulcrum 119 is left on the optical axis direction, can extend and use the distance of coil 23 from fulcrum 119 shake corrections in one's hands.Because being used for fulcrum 119 be that the center makes the torque of movable module 202 swings and becomes pro rata greatly from the distance of fulcrum 119 shake corrections in one's hands with coil 23, so present embodiment can increase this torque.That is, can improve the driving force of wobble drive mechanism 46.

In addition, in the present embodiment, because long leg 23a is configured in the first area 30, long leg 23b is configured in the second area 31, therefore compare with time in short leg 23c, 23d are configured in first area 30 and second area 31, can further improve the driving force of wobble drive mechanism 46.In addition, revise with coil 23 with hand shake and to be wound into roughly square and to compare during formation, in the present embodiment, in the driving force that improves wobble drive mechanism 46, can on the relative above-below direction of long leg 23a, 23b, realize having the miniaturization of the optical unit 100 of shake correcting function.In addition,, therefore can reduce hand and shake the resistance value of revising with coil 23, can reduce the hand shake and revise the power consumption of using coil 23 owing to almost do not have short leg 23c, the 23d of contribution to shorten to the driving force of wobble drive mechanism 46.

For example, hand shake revised to revise with magnet 21 and hand shake be configured to the hand shake with coil 23 and revise and shake correction with the bearing surface 27 of magnet 21 with hand and use the center C L3 of coil 23 consistent on optical axis direction, and as shown in figure 20, hand shake revised with coil 23 be configured in direction that the hand shake revises the magnetic line of force that produces with magnet 21 in the zone of left and right directions roughly (or roughly fore-and-aft direction) time, revise with for example up electromagnetic force F1, F2 generation on the coil 23 in the hand shake that obtains powering.That is, in this case, produce that to be used for fulcrum 119 be that the center makes the direction of the direction of the oscillatory forces that movable module 202 swings and electromagnetic force F1, F2 inconsistent.Therefore, in this case, can't effectively utilize the hand shake to revise the magnetic flux that produces with magnet 21.

(about the driving force of wobble drive mechanism)

Figure 21 is the figure that is used to illustrate the condition of the simulation that the driving force to wobble drive mechanism 46 shown in Figure 16 compares.The curve map of Figure 22 Simulation result that to be expression compare the driving force of wobble drive mechanism 46 shown in Figure 16.

Below, illustrate that according to analog result long leg 23a and long leg 23b and hand shake revise bearing surface 27 with magnet 21 distance on optical axis direction and the relation of the driving force of wobble drive mechanism 46.

Change long leg 23a in the distance P 2 (with reference to Figure 21) of the center C L5 on optical axis direction of the distance P 1 (with reference to Figure 21) of the center C L4 on the optical axis direction and bearing surface 27 and long leg 23b and bearing surface 27, the torque of wobble drive mechanism 46 generations is simulated.In the simulation, the height H 1 that hand shown in Figure 21 shake is revised with magnet 21 is made as 4.8mm, and the height H 2 of the first magnet sheet 21a and the second magnet sheet 21b is made as 2.4mm, and the height H 3 of long leg 23a, 23b is made as 1.2mm.In addition, distance P 1 is 2mm, distance P 2 during for 0.5mm, and fulcrum 119 and hand shake are revised with the distance L of coil 23 and be 7.6mm roughly.

Figure 22 represents Simulation result.On the transverse axis of Figure 22, the value of distance P 1, P2 was for just when center C L4, CL5 were positioned at the upside of bearing surface 27, and the value of distance P 1, P2 was for negative when center C L4, CL5 were positioned at the downside of bearing surface 27.

As shown in figure 22, in the simulation, when distance P 1 is 2mm, distance P 2 for-0.5mm, the torque maximum of wobble drive mechanism 46.When this torque is a distance P 1 for 1.2mm, distance P 2 for-1.2mm roughly 1.4 times of the torque of wobble drive mechanism 46.That is, the torque of the distance P 1 wobble drive mechanism 46 during for-0.5mm for 2mm, distance P 2 is roughly 1.4 times of the hand shake torque of revising the wobble drive mechanism 46 when being disposed at same position with the center C L3 of coil 23 and bearing surface 27 on optical axis direction.

In the above-mentioned simulation, when distance P 1 is 2mm, distance P 2 for-0.5mm, the torque maximum of wobble drive mechanism 46, but revise when revising change in size with coil 23 etc. with magnet 21 and hand shake in the hand shake, best distance P 1, P2 also change.In addition, when the torque that can't set wobble drive mechanism 46 because of the restriction of the physical dimension of the optical unit 100 that has shake correcting function etc. becomes maximum optimum distance P1, P2, also can in above-mentioned restriction, set distance P 1, the P2 that can set, so that the torque of wobble drive mechanism 46 becomes big.

Figure 23 is the cut-open view of the related optical unit that has shake correcting function 51 of another embodiment of the invention.Figure 24 is the vertical view that coil 73 is used in shake correction shown in Figure 23.Figure 25 is the vertical view that coil 74 is used in shake correction shown in Figure 23.Figure 26 is used to illustrate shake correction shown in Figure 23 figure with the magnetic line of force of magnet 71,72 generations.Figure 27 is the figure that is used to illustrate by the direction of electromagnetic force that shake correction shown in Figure 23 is produced with coil 73,74 power supplies.

Below explanation in, to the identical symbol of the structure identical mark and omit or simplify its explanation with above-mentioned embodiment.In addition, in the following explanation, also with three orthogonal directions respectively as directions X, Y direction and Z direction, with X1 direction side as " right side " side, with X2 direction side as " left side " side, with Y1 direction side as " preceding " side, with Y2 direction side as " back " side, with Z1 direction side as " on " side, with Z2 direction side as the D score side.

The optical unit that has shake correcting function 51 of present embodiment is the same with the above-mentioned optical unit 100 that has a shake correcting function, it is the small-sized and slim camera that is installed on the portable sets such as mobile phone, as shown in figure 23, comprising: the supporter 55 of lens driving module 203, sensor 172, support of lens driver module 203, the wobble drive mechanism 56 that lens driving module 203 is swung.In the present embodiment, the optical axis direction of the optical unit that has shake correcting function 51 when above-below direction is not swung with lens driving module 203 yet is consistent.

The front and back of lens driving module 203 and about side tegmentum parts 59 cover the top and bottom opening of this cover 59, and form roughly quadrangular barrel shape.Cover 59 usefulness magnetic materials form.The front and back of cover 59 and about the side form and the optical axis direction almost parallel, on these sides, be fixed with the aftermentioned shake that constitutes wobble drive mechanism 56 respectively and revise with magnet 71,72.Be equipped with in the upper end of cover 59 and form the tabular cover unit of essentially rectangular 58.That is, the upper end side of cover 59 is covered by cover unit 58.Be formed with circular through hole 58a at the center of cover unit 58.

Sensor 172 is configured in the downside of lens driving module 203.Particularly, sensor 172 is configured in the downside of lens driving module 203 with the form of avoiding optical axis L.On sensor 172, be connected with FPC60.On the lower surface of lens driving module 203, the connector 57 that is electrically connected with imaging apparatus etc. on being installed in lens driving module 203 is configured to adjacent with sensor 172.

In addition, the lower face side of sensor 172 is formed 61 coverings of the tabular lower cover member of essentially rectangular.Lower cover member 61 is installed on the lower end of cover 59, with the lower end side covering of cover 59.

In the present embodiment, lens driving module 203, sensor 172, cover 59, cover unit 58 and lower cover member 61 supported bodies 55 support to and can swing.That is, in the present embodiment, lens driving module 203, sensor 172, cover 59, cover unit 58 and lower cover member 61 have constituted can be with respect to the movable module 62 of supporter 55 swings.

Supporter 55 comprises: constitute the optical unit 51 have shake correcting function front and back and about the shell 66 of outer peripheral face, and the aftermentioned shake that constitutes wobble drive mechanism 56 revised the coil holding member 64,65 that is kept with coil 73,74.Be fixed with leaf spring 67 on coil holding member 64,65 or shell 66, this leaf spring 67 supports to movable module 62 can swing.

Shell 66 forms the roughly quadrangular barrel shape of top and bottom opening.The front and back of shell 66 and about the side form and the optical axis direction almost parallel.

Coil holding member 64,65 for example forms with the resin of insulativity.In addition, coil holding member 64,65 forms roughly quadrangular barrel shape, has four sides with the side almost parallel of shell 66.This coil holding member 64,65 is fixed on the inner peripheral surface of shell 66.Particularly, coil holding member 64,65 is to be fixed on the inner peripheral surface of shell 66 in the form that overlaps each other on the optical axis direction.In addition, coil holding member 64 is configured in upside, and coil holding member 65 is configured in downside.

On four sides of coil holding member 64, be formed with the configuration hole 64a of configuration shake correction described later respectively with coil 73.Configuration hole 64a forms the side of thorough coil holding member 64.In addition, on four sides of coil holding member 65, be formed with the configuration hole 65a of configuration shake correction described later respectively with coil 74.Configuration hole 65a forms the side of thorough coil holding member 65.

Leaf spring 67 integral body form essentially rectangular.The outer circumferential side of leaf spring 67 is fixed on the supporter 55, is fixing movable module 62 at the central part of leaf spring 67.That is, leaf spring 67 comprises: the spring portion that is fixed on fixed part on the supporter 55, keeps the maintaining part of movable module 62, fixed part is connected with maintaining part.

In the present embodiment, fixing the approximate centre position on optical axis direction of cover 59 at the central part of leaf spring 67.Particularly, by the locational dividing plate 68 of the approximate centre on optical axis direction that is fixed on cover 59, fixing the approximate centre position on optical axis direction of cover 59 at the central part of leaf spring 67, leaf spring 67 is disposed at the centre position at optical axis Fang Shangxiang of movable module 62.In the present embodiment, the approximate centre position of leaf spring 67 becomes the oscillation centre 69 of movable module 62.This oscillation centre 69 is disposed at the position of the optical axis L process of lens driver 2.The optical axis L of lens driving module 203 is disposed at the center of movable module 62.

Wobble drive mechanism 56 comprises: the shake correction that is configured in oscillation centre 69 upsides on the optical axis direction with magnet 71, the upside that is configured in oscillation centre 69 on the optical axis direction and with shake revise with the shake correction of magnet 71 relative configurations with coil 73, the shake correction that is configured in oscillation centre 69 downsides on the optical axis direction with magnet 72, on optical axis direction, be configured in oscillation centre 69 downside and with the shake correction magnet 72 relative shake corrections of disposing coils 74.The wobble drive mechanism 56 of present embodiment comprises: four shakes are revised to revise to revise with coil 73, four shakes with magnet 72, four shakes with magnet 71, four shakes and are revised with coil 74.

Shake correction forms the tabular of the certain essentially rectangular of thickness with magnet 71.In addition, shake correction is made of the first magnet sheet 71a and these two magnet sheets of the second magnet sheet 71b with magnet 71.Particularly, under the state of the upper surface butt of the lower surface of the first magnet sheet 71a and the second magnet sheet 71b, the first magnet sheet 71a and the second magnet sheet 71b are adhesively fixed, and revise with magnet 71 thereby form shake.The first magnet sheet 71a forms height with the second magnet sheet 71b, width is identical with thickness.

Shake is revised with magnet 72 and is shaken to revise with magnet 71 and similarly forms.That is, shake correction forms the tabular of the certain essentially rectangular of thickness with magnet 72.In addition, shake correction is made of the first magnet sheet 72a and these two magnet sheets of the second magnet sheet 72b with magnet 72.Particularly, under the state of the lower surface butt of the upper surface of the first magnet sheet 72a and the second magnet sheet 72b, the first magnet sheet 72a and the second magnet sheet 72b are adhesively fixed, and revise with magnet 72 thereby form shake.The first magnet sheet 72a forms height with the second magnet sheet 72b, width is identical with thickness.

Shake revise with magnet 71,72 the side of the front and back of cover 59 and about the side on be fixed with one respectively.Particularly, the side of the front and back of leaf spring 67 upsides of cover 59 and about the side on be fixed with a shake respectively and revise with magnet 71, the side of the front and back of leaf spring 67 downsides of cover 59 and about the side on be fixed with a shake respectively and revise with magnet 72.That is, shake is revised with magnet 71,72 with lens driving module 203 swings.As mentioned above, cover 59 usefulness magnetic materials form, and cover 59 plays the function that shake correction is used the back yoke of magnet 71,72.The cover 59 of present embodiment is to keep shake correction to use the magnet holding member of magnet 71,72.Shake is revised dividing plate 68 with the frame shape of magnet 71,72 by forming essentially rectangular to be fixed on the side of cover 59 at the state that is positioned on the optical axis direction.

In the present embodiment, be fixed on cover 59 about the side on the shake correction be magnetized to magnet 71,72: it is different that the magnetic pole that forms on the magnetic pole of going up formation with the right surface of magnet 71,72 and the left surface is revised in shake.In addition, be fixed on cover 59 about the side on the shake correction be magnetized to magnet 71,72: the magnetic pole that forms on the magnetic pole that forms on the lateral surface of the first magnet sheet 71a, the 72a of left and right directions and the lateral surface of the second magnet sheet 71b, 72b different (that is, the magnetic pole that forms on the medial surface of the magnetic pole that forms on the medial surface of the first magnet sheet 71a, the 72a of left and right directions and the second magnet sheet 71b, 72b is different).

Similarly, the shake correction that is fixed on the side of front and back of cover 59 is magnetized to magnet 71,72: it is different that the magnetic pole that forms on the magnetic pole that forms on the front surface with magnet 71,72 and the rear surface is revised in shake.In addition, the shake correction that is fixed on the side of front and back of cover 59 is magnetized to magnet 71,72: the magnetic pole that forms on the magnetic pole that forms on the lateral surface of the first magnet sheet 71a, the 72a of fore-and-aft direction and the lateral surface of the second magnet sheet 71b, 72b is different.

For example, the shake correction that is fixed on the right flank of cover 59 is magnetized to the S utmost point with the right flank of the first magnet sheet 71a of magnet 71, left surface is magnetized to the N utmost point, and above-mentioned shake correction is magnetized to the N utmost point with the right flank of the second magnet sheet 71b of magnet 71, and left surface is magnetized to the S utmost point.Similarly, the shake correction that is fixed on the left surface of cover 59 is magnetized to the S utmost point with the left surface of the first magnet sheet 71a of magnet 71, right flank is magnetized to the N utmost point, and above-mentioned shake correction is magnetized to the N utmost point with the left surface of the second magnet sheet 71b of magnet 71, and right flank is magnetized to the S utmost point.

In addition, for example, the shake correction that is fixed on the trailing flank of cover 59 is magnetized to the N utmost point with the trailing flank of the first magnet sheet 71a of magnet 71, and leading flank is magnetized to the S utmost point, above-mentioned shake correction is magnetized to the S utmost point with the trailing flank of the second magnet sheet 71b of magnet 71, and leading flank is magnetized to the N utmost point.Similarly, the shake correction that is fixed on the leading flank of cover 59 is magnetized to the N utmost point with the leading flank of the first magnet sheet 71a of magnet 71, trailing flank is magnetized to the S utmost point, and above-mentioned shake correction is magnetized to the S utmost point with the leading flank of the second magnet sheet 71b of magnet 71, and trailing flank is magnetized to the N utmost point.

In addition, for example, the shake correction that is fixed on the right flank of cover 59 is magnetized to the S utmost point with the right flank of the first magnet sheet 72a of magnet 72, and left surface is magnetized to the N utmost point, above-mentioned shake correction is magnetized to the N utmost point with the right flank of the second magnet sheet 72b of magnet 72, and left surface is magnetized to the S utmost point.Similarly, the shake correction that is fixed on the left surface of cover 59 is magnetized to the S utmost point with the left surface of the first magnet sheet 72a of magnet 72, right flank is magnetized to the N utmost point, and above-mentioned shake correction is magnetized to the N utmost point with the left surface of the second magnet sheet 72b of magnet 72, and right flank is magnetized to the S utmost point.

In addition, for example, the shake correction that is fixed on the trailing flank of cover 59 is magnetized to the N utmost point with the trailing flank of the first magnet sheet 72a of magnet 72, and leading flank is magnetized to the S utmost point, above-mentioned shake correction is magnetized to the S utmost point with the trailing flank of the second magnet sheet 72b of magnet 72, and leading flank is magnetized to the N utmost point.Similarly, the shake correction that is fixed on the leading flank of cover 59 is magnetized to the N utmost point with the leading flank of the first magnet sheet 72a of magnet 72, trailing flank is magnetized to the S utmost point, and above-mentioned shake correction is magnetized to the S utmost point with the leading flank of the second magnet sheet 72b of magnet 72, and trailing flank is magnetized to the N utmost point.

Shake is revised with coil the 73, the 74th, uses the same hollow coil of coil 23 with shake correction.That is, shake is revised with coil the 73, the 74th, the pancake coil that thickness is roughly certain.In addition, shake is revised with coil 73,74 and is wound into roughly rectangle and forms.That is, as shown in figure 24, shake is revised with coil 73 by parallel to each other two long leg 73a, 73b and form to such an extent that lack and two short leg 73c, 73d parallel to each other constitute than long leg 73a, 73b.In addition, as shown in figure 25, shake is revised with coil 74 by parallel to each other two long leg 74a, 74b and form to such an extent that lack and two short leg 74c, 74d parallel to each other constitute than long leg 74a, 74b.

Shake revise with coil 73 the side of the front and back of coil holding member 64 with about the side on be fixed with one respectively.In addition, shake revise with coil 74 the side of the front and back of coil holding member 65 with about the side on be fixed with one respectively.In addition, shake is revised with coil 73 so that the length direction of short leg 73c, the 73d form consistent with above-below direction is fixed on the coil holding member 64, shake correction with coil 74 so that the length direction of short leg 74c, the 74d form consistent with above-below direction be fixed on the coil holding member 65.Promptly, shake is revised with coil 73 so that the length direction of long leg 73a, the 73b form consistent with left and right directions or fore-and-aft direction is fixed on the coil holding member 64, shake correction with coil 74 so that the length direction of long leg 74a, the 74b form consistent with left and right directions or fore-and-aft direction be fixed on the coil holding member 65.

The shake correction of present embodiment is with in the coil 73, and the long leg 73a that is configured in upside becomes the first limit portion, and the long leg 73b that is configured in downside becomes the second limit portion.In addition, the shake correction of present embodiment is with in the coil 74, and the long leg 74a that is configured in downside becomes the first limit portion, and the long leg 74b that is configured in upside becomes the second limit portion.

As shown in figure 23, shake is revised with magnet 71 and is shaken correction with state relative dispose of coil 73 to open specified gap in fore-and-aft direction or the left and right directions sky.Particularly, shake is revised with magnet 71 and shake and is revised with upside relative dispose of coil 73 in oscillation centre 69, and dispose relatively with the state that sky is opened specified gap, even so that movable module 62 is that swing at the center with oscillation centre 69, shake is revised with magnet 71 and also can not contacted with coil 73 with shake correction.In addition, shake is revised with magnet 72 and shake and is revised with downside relative dispose of coil 74 in oscillation centre 69, and dispose relatively with the state that sky is opened specified gap, even so that movable module 62 is that swing at the center with oscillation centre 69, shake is revised with magnet 72 and also can not contacted with coil 74 with shake correction.

In the present embodiment, when not revising with coil 73,74 power supplies to shake, as shown in figure 23, movable module 62 can be positioned at the neutral position that with respect to supporter 55 (that is, lens driving module 203 can be positioned at the neutral position that with respect to supporter 55).

In the present embodiment, as shown in figure 23, when movable module 62 is positioned at the neutral position, be fixed on coil holding member 64 about the side on the shake correction with the medial surface of the left and right directions of coil 73 with towards the top gradually to the left and right the open form in the outside of direction tilt.Similarly, when movable module 62 is positioned at the neutral position, be fixed on the side of front and back of coil holding member 64 the shake correction with the medial surface of the fore-and-aft direction of coil 73 with towards the top gradually forwards, backwards the open form in the outside of direction tilt.

In addition, as shown in figure 23, when movable module 62 is positioned at the neutral position, be fixed on coil holding member 65 about the side on the shake correction with the medial surface of the left and right directions of coil 74 with towards the below gradually to the left and right the open form in the outside of direction tilt.Similarly, when movable module 62 is positioned at the neutral position, be fixed on the side of front and back of coil holding member 65 the shake correction with the medial surface of the fore-and-aft direction of coil 74 with towards the below gradually forwards, backwards the open form in the outside of direction tilt.

As mentioned above, shake is revised and to be magnetized to magnet 71,72: the magnetic pole that forms on the magnetic pole that forms on the lateral surface of the first magnet sheet 71a, the 72a of left and right directions (or fore-and-aft direction) and the lateral surface of the second magnet sheet 71b, 72b is different.Promptly, revise with revising on the opposite face relative of magnet 71 in shake and to be formed with the two poles of the earth magnetic pole overlapping on optical axis direction (the N utmost point and the S utmost point), on the opposite face relative with coil 74 with shaking correction with magnet 72 revised in shake, be formed with the two poles of the earth magnetic pole overlapping on optical axis direction (the N utmost point and the S utmost point) with coil 73 with shake.Therefore, shake is revised the magnetic line of force with magnet 71,72 generations for example to become arrow shown in Figure 26 such.

Therefore, for example at the upside of the center C L11 on optical axis direction of the first magnet sheet 71a, revise direction that the outside with the fore-and-aft direction (or left and right directions) of the relative opposite face of coil 73 is formed with the magnetic line of force for slightly away from the zone 80 of the direction of oscillation centre 69 (below should zone 80 conducts " first area 80 ") with shake at the first magnet sheet 71a.Promptly, the magnetic force center of revising the magnetic pole (the N utmost point) that forms on the opposite face relative with coil 73 with shake at the first magnet sheet 71a is the upside of center C L11, is formed with first area 80 with the shake correction with the outside of the fore-and-aft direction (or left and right directions) of the relative opposite face of coil 73 at the first magnet sheet 71a.

In addition, for example at the downside of the center C L21 on optical axis direction of the first magnet sheet 72a, revise direction that the outside with the fore-and-aft direction (or left and right directions) of the relative opposite face of coil 74 is formed with the magnetic line of force for slightly away from the zone 85 of the direction of oscillation centre 69 (below should zone 85 conducts " first area 85 ") with shake at the first magnet sheet 72a.Promptly, the magnetic force center of revising the magnetic pole (the N utmost point) that forms on the opposite face relative with coil 74 with shake at the first magnet sheet 72a is the downside of center C L21, is formed with first area 85 with the shake correction with the outside of the fore-and-aft direction (or left and right directions) of the relative opposite face of coil 74 at the first magnet sheet 72a.

In the present embodiment, as Figure 23, shown in Figure 26, shake is revised with magnet 71 and shake and revised with coil 73 relative being configured to: the upside that is configured in the bearing surface 77 of the first magnet sheet 71a and the second magnet sheet 71b with the center C L13 on optical axis direction of coil 73 is revised in shake.That is, shake is revised center C L13 with coil 73 and is disposed to liken on optical axis direction to shake correction and uses the bearing surface 77 at magnetic force center of magnet 71 away from the position of oscillation centre 69.

Particularly, as shown in figure 26, the center C L14 on optical axis direction of long leg 73a is configured in the upside of the center C L11 of the first magnet sheet 71a.That is, the center C L14 of long leg 73a be configured in the first magnet sheet 71a to be formed on shaking the magnetic force center of revising with the magnetic pole on the relative opposite face of coil 73 be the upside of center C L11.In other words, in the present embodiment, long leg 73a is configured in the first area 80.The center C L15 on optical axis direction of long leg 73b is configured in the downside of the center C L12 of the second magnet sheet 71b.That is, the center C L15 of long leg 73b be configured in the second magnet sheet 71b to be formed on shaking the magnetic force center of revising with the magnetic pole on the relative opposite face of coil 73 be the downside of center C L12.

In addition, in the present embodiment, as Figure 23, shown in Figure 26, shake is revised with magnet 72 and shake and revised with coil 74 relative being configured to: the downside that is configured in the bearing surface 78 of the first magnet sheet 72a and the second magnet sheet 72b with the center C L23 on optical axis direction of coil 74 is revised in shake.That is, shake is revised center C L23 with coil 74 and is disposed to liken on optical axis direction to shake correction and uses the bearing surface 78 at magnetic force center of magnet 72 away from the position of oscillation centre 69.

Particularly, as shown in figure 26, the center C L24 on optical axis direction of long leg 74a is configured in the downside of the center C L21 of the first magnet sheet 72a.That is, the center C L24 of long leg 74a be configured in the first magnet sheet 72a to be formed on shaking the magnetic force center of revising with the magnetic pole on the relative opposite face of coil 74 be the downside of center C L21.In other words, in the present embodiment, long leg 74a is configured in the first area 85.The center C L25 on optical axis direction of long leg 74b is configured in the upside of the center C L22 of the second magnet sheet 72b.That is, the center C L25 of long leg 74b be configured in the second magnet sheet 72b to be formed on shaking the magnetic force center of revising with the magnetic pole on the relative opposite face of coil 74 be the upside of center C L22.

As mentioned above, in the present embodiment, long leg 73a is configured in the first area 80, and long leg 74a is configured in the first area 85.Therefore, as shown in figure 27, the direction by shake being revised the electromagnetic force F11 that in long leg 73a, produces with coil 73 power supplies be that also the tangential direction of the circle of process long leg 73a is roughly consistent at the center with oscillation centre 69.In addition, the direction by shake being revised the electromagnetic force F21 that produces at long leg 74a with coil 74 power supplies be that also the tangential direction of the circle of process long leg 74a is roughly consistent at the center with oscillation centre 69.That is, to be used for oscillation centre 69 be that the center makes the direction of the oscillatory forces that movable module 62 swings roughly consistent for the direction by shake being revised the electromagnetic force F11, the F21 that produce with coil 73,74 power supplies in shake is revised with coil 73,74 and generation.

Have in the optical unit that has shake correcting function 51 of said structure, when utilizing sensor 172 to detect the variation of inclination of lens driving module 203 (detecting the shake (vibration) of lens driving module 203), testing result according to sensor 172, shake is revised with coil 73,74 power supplies, movable module 62 is that swing at the center with oscillation centre 69, will shake correction.In the present embodiment, utilize wobble drive mechanism 56, leaf spring 67, the testing result that has constituted according to sensor 172 makes lens driving module 203 swings revise the shake correction mechanism (hand shake correction mechanism) of shake (hand shake).

(the main effect of present embodiment)

As mentioned above, in the present embodiment, shake is revised with magnet 71 and shake correction with upside relative dispose of coil 73 in oscillation centre 69, and the center C L14 of long leg 73a be configured in the first magnet sheet 71a to be formed on shaking correction be the upside of center C L11 with the magnetic force center of the magnetic pole on the relative opposite face of coil 73.In addition, shake is revised with magnet 72 and shake correction with downside relative dispose of coil 74 in oscillation centre 69, and the center C L24 of long leg 74a be configured in the first magnet sheet 72a to be formed on shaking correction be the downside of center C L21 with the magnetic force center of the magnetic pole on the relative opposite face of coil 74.

Promptly, in the present embodiment, long leg 73a is configured in direction that shake revises the magnetic line of force that produces with magnet 71 in the first area 80 away from the direction of oscillation centre 69 slightly, and long leg 74a is configured in direction that shake revises the magnetic line of force that produces with magnet 72 in the first area 85 away from the direction of oscillation centre 69 slightly.Therefore, as mentioned above, it is that the center makes the direction of the oscillatory forces that movable module 62 swings roughly consistent that direction by shake being revised the electromagnetic force F11, the F21 that produce with coil 73,74 power supplies and generation are used for oscillation centre 69.Therefore, in the present embodiment, can effectively utilize shake and revise the magnetic flux that produces with magnet 71,72, thereby improve the driving force of wobble drive mechanism 56.Consequently, in the present embodiment,, also can obtain the driving force that enough being used to makes lens driving module 203 swings even when optical unit 51 miniaturizations that have shake correcting function, slimming.

Particularly in the present embodiment, long leg 73a is configured in the first area 80, long leg 74a is configured in the first area 85, therefore, can produce electromagnetic force F11, F21 with the roughly consistent direction of the generation direction of oscillatory forces of movable module 62 that with oscillation centre 69 is the center among both at long leg 73a, 74a.Therefore, in the present embodiment, can effectively improve the driving force of wobble drive mechanism 56.

In the present embodiment, shake is revised center C L13 with coil 73 and is disposed on optical axis direction and uses the position of the bearing surface 77 of magnet 71 away from oscillation centre 69 than shake correction.Therefore, revise center C L13 with coil 73 with bearing surface 77 and shake and be disposed at, can extend from oscillation centre 69 to shaking the correction distance of coil 73 comparing during from equidistant position that oscillation centre 69 is left on the optical axis direction.Similarly, shake is revised center C L23 with coil 74 and is disposed on optical axis direction and uses the position of the bearing surface 78 of magnet 72 away from oscillation centre 69 than shake correction, therefore, revise center C L23 with coil 74 with bearing surface 78 and shake and be disposed at, can extend from oscillation centre 69 to shaking the correction distance of coil 74 comparing during from equidistant position that oscillation centre 69 is left on the optical axis direction.Therefore, the torque that is used to make movable module 62 swings can be increased, the driving force of wobble drive mechanism 56 can be improved.

In the present embodiment, long leg 73a is configured in the first area 80, and long leg 74a is configured in the first area 85.Therefore, compare, can further improve the driving force of wobble drive mechanism 56 with time in short leg 73c, 73d, 74c, 74d are configured in first area 80,85.In addition, revise with coil 73,74 with shake and to be wound into roughly square and to compare during formation, in the present embodiment, in the driving force that improves wobble drive mechanism 56, can on above-below direction, realize having the miniaturization of the optical unit 51 of shake correcting function.In addition, owing to almost do not have short leg 73c, 73d, 74c, the 74d of contribution to shorten to the driving force of wobble drive mechanism 56, so can reduce to shake the resistance value of revising with coil 73,74, can reduce the power consumption that shake correction is used coil 73,74.

(other embodiment)

Above-mentioned embodiment is an example of comparatively desirable form of the present invention, but is not limited thereto, and the present invention can not change and carry out various distortion in the scope of purport of the present invention and implement.

In the above-mentioned embodiment, the hand shake is revised and is installed on the cover 9 with magnet 21, and the hand shake is revised and is installed on the shell 116 with coil 23.In addition, for example also can be like this: the hand shake be revised and is installed on the shell 116 with magnet 21, and hand shake correction is installed on the cover 9 with coil 23.In this case, hand shake correction is configured in the downside that the bearing surface 27 of using stone 21 is revised in the hand shake with the center C L3 of coil 23.That is, hand shake is revised center C L3 with coil 23 and is disposed on optical axis direction than the hand shake and revises the position near fulcrum 119, the magnetic force center of using magnet 21.

Particularly, the center C L4 of long leg 23a be configured in the first magnet sheet 21a center C L1 downside and at the upside of bearing surface 27, and the center C L5 of long leg 23b is configured in the downside of the center C L2 of the second magnet sheet 21b.Promptly, in this case, downside at the center C L1 of the first magnet sheet 21a, in the direction of revising the inboard of fore-and-aft direction (or left and right directions) of the opposite face relative and the magnetic line of force with the hand shake that is formed at the first magnet sheet 21a with coil 23 in the zone away from the direction of fulcrum 119 slightly, configuration long leg 23a.In addition, downside at the center C L2 of the second magnet sheet 21b, in the direction of revising the inboard of fore-and-aft direction (or left and right directions) of the opposite face relative and the magnetic line of force with the hand shake that is formed at the second magnet sheet 21b with coil 23 in the zone near the direction of fulcrum 119 slightly, configuration long leg 23b.

Similarly, in the above-mentioned embodiment, the hand shake is revised and is installed on the cover 59 with magnet 71,72, the hand shake is revised and is installed on the coil holding member 64,65 with coil 73,74, but also can be like this: the hand shake be revised and is installed on the shell 66 with magnet 71,72, and hand shake correction is installed on the cover 59 with coil 73,74.

In the above-mentioned embodiment, the hand shake is revised and is made of the first magnet sheet 21a, 71a, 72a and the second magnet sheet 21b, these two magnet sheets of 71b, 72b with magnet 21,71,72.In addition, for example also can be like this: the hand shake be revised and is made of a magnet sheet with magnet 21,71,72.In this case, on the hand shake was revised with each face in the two sides of magnet 21,71,72, a magnet sheet was magnetized to and is formed on the two poles of the earth magnetic pole overlapping on the optical axis direction.

In the above-mentioned embodiment, hand shake revise with magnet 21 with the hand shake correction opposite face relative with coil 23 on be formed with the two poles of the earth magnetic pole overlapping on optical axis direction.In addition, for example also can revise with revising on the opposite face relative of magnet 21 and only form a utmost point magnetic pole, perhaps also can form three magnetic poles more than extremely in hand shake with coil 23 with the hand shake.Hand shake revise with magnet 21 with the hand shake correction opposite face relative with coil 23 on when only forming a utmost point magnetic pole, hand shake is revised with the long leg 23a of coil 23 and any among the long leg 23b, be configured in direction that the hand shake revises the magnetic line of force that produces with magnet 21 for slightly away from the direction of the zone of the direction of fulcrum 119 or the magnetic line of force in the zone near the direction of fulcrum 119 slightly.

Similarly, in the above-mentioned embodiment, hand shake revise with magnet 71,72 with the hand shake correction opposite face relative with coil 73,74 on be formed with the two poles of the earth magnetic pole overlapping on optical axis direction, but also can revise with revising on the opposite face relative of magnet 71,72 and only form a utmost point magnetic pole, perhaps also can form three magnetic poles more than extremely in hand shake with coil 73,74 with the hand shake.

In the above-mentioned embodiment, on base body 115, be formed with fulcrum projection 115b, on sender unit cap parts 111, be formed with bearing surface 111a with fulcrum projection 115b butt.In addition, for example also can be like this: on sender unit cap parts 111, be formed with the fulcrum projection, be formed on the base body 115 with the bearing surface of this fulcrum projections.In addition, also can on base body 115, form fulcrum projection 115b, on sender unit cap parts 111, form the recess engage with fulcrum projection 115b, perhaps also can on sender unit cap parts 111, form the fulcrum projection, be formed on the base body 115 with the recess of this fulcrum protrusions snap.

In the above-mentioned embodiment, the optical unit 100 that has a shake correcting function comprises fulcrum 119 as the oscillation centre of movable module 202 at the downside of movable module 202, but the optical unit 100 that has a shake correcting function also can not comprise fulcrum 119.In this case, regulation points on the optical axis L, leaf spring 117 downsides become the oscillation centre of movable module 202.In addition, in the above-mentioned embodiment, fulcrum 119 is configured on the position of optical axis L process, is avoiding on the position of optical axis L but fulcrum 119 is also configurable.

In the above-mentioned embodiment, dispose sensor 171,172 at the downside of lens driving module 201,203.That is, lens driving module 201,203 and sensor 171,172 are configured to: lens driving module 201,203 and sensor 171,172 are overlapping on optical axis direction.In addition, for example also can be like this: lens driving module 201,203 and sensor 171,172 are configured to lens driving module 201,203 and sensor 171,172 is not overlapping on optical axis direction.

In the above-mentioned embodiment, the hand shake is revised with coil the 23,73, the 74th, hollow coil, but hand shake correction also can be the coil that has bobbin with coil 23,73,74.

In the above-mentioned embodiment, the optical unit 100,51 that has shake correcting function is installed on the portable sets such as mobile phone.In addition, for example also can on the Tachographs of the travel conditions that writes down automobile, install the optical unit 100,51 that has shake correcting function.In this case, because the vibration of automobile etc. when travelling, when utilizing sensor 171 to detect the variation of inclination of lens driving module 201 (detecting the shake (vibration) of lens driving module 201), testing result according to sensor 171, the adversary shakes and revises with coil 23 power supplies, movable module 202 is that swing at the center with fulcrum 119, will shake correction.Perhaps, when utilizing sensor 172 to detect the variation of inclination of lens driving module 203, according to the testing result of sensor 172, the adversary shakes and revises with coil 73,74 power supplies, and movable module 62 is that swing at the center with center of rotation 69, will shake correction.In addition, the optical unit 100,51 that has a shake correcting function also can be installed on other device such as monitor camera.

Herein, for example, as shown in figure 28, be at the optical axis direction of lens driving module 201 and use under the horizontal state when having the optical unit 100 of shake correcting function, movable module 202 because of gravity towards having a down dip.If it is far away that the center of gravity of movable module 202 is left fulcrum 119, be that the turning moment of the movable module 202 at center becomes greatly with fulcrum 119 when then optical axis L tilts with respect to vertical, tilt quantity also can increase.

In the above-mentioned embodiment, leaf spring 117 is fixed on the shell 116 with the state of deflection, be used to make the fulcrum projection 115b pressurization of butt reliably of the bearing surface 111a and the base body 115 of sender unit cap parts 111 with generation, therefore, the optical unit 100 that has shake correcting function can suppress above-mentioned inclination.In addition, in the above-mentioned embodiment, hand shake is revised to revise with coil 23 is relative with magnet 21 and hand shake and is configured to the hand shake and revises the upside that is configured in the bearing surface 27 of the first magnet sheet 21a and the second magnet sheet 21b with the center C L3 on above-below direction of coil 23, and the hand that weight is bigger is shaken correction and is configured near fulcrum 119 with magnet 21.Therefore, the center of gravity that can make movable module 202 self is near fulcrum 119, and the turning moment of movable module 202 in the time of reducing optical axis L thus and be in level suppresses the tilt quantity of movable module 202.

Yet, when the weight of movable module 202 becomes big, must increase the spring force of leaf spring 117, leaf spring 117 may be thicker, becomes big.Therefore, as shown in figure 28, also can be on movable module 202 stable equilibrium piece 40 so that the center of gravity of movable module 202 is near fulcrum 119.That is, also can be near the fulcrum 119 of movable module 202 or downside (left side of Figure 28) the stable equilibrium piece 40 of fulcrum 119.For example, as shown in figure 16 since in the bottom of sender unit cap parts 111 to surround bearing surface 111a and to be formed with circular recess 111c towards the form of lower recess, therefore also can in this recess 111c, dispose counterbalance weight 40.Also can between the center of gravity of movable module 202 and fulcrum 119, counterbalance weight 40 be fixed on the movable module 202.In addition, also can strengthen the weight of sender unit cap parts 111, make sender unit cap parts 111 play the effect of counterbalance weight 40.

So, when realizing the slimming of leaf spring 117, miniaturization, the tilt quantity of movable module 202 when the optical axis L that can reduce lens driving module 201 tilts with respect to vertical.In addition, the necessity that the deviation of the tilt quantity of the movable module 202 that causes in conjunction with the posture difference of the optical unit 100 that has shake correcting function designs leaf spring 117 is eased, and therefore, the design freedom of leaf spring 117 increases.When in the recess 111c of cover 111, disposing counterbalance weight 40, comparatively it is desirable to counterbalance weight 40 and form with the shape of circular recess 111c corresponding circular.Counterbalance weight 40 forms when circular, and no matter movable module 202 whichaways tilt, and can both reduce the turning moment of movable module 202, reduce tilt quantity.

Below, illustrating with reference to the accompanying drawings can miniaturization, an embodiment more of the present invention of slimming.

(structures of optical devices for shooting)

Figure 29 is the stereographic map of the related optical unit that has shake correcting function 101 of embodiments of the present invention.Figure 30 is the cut-open view in the E-E cross section of Figure 29.Figure 31 is the stereographic map of a part of inscape in the F-F cross section of expression Figure 29.The structure of an above-mentioned embodiment again is basic identical with the structure of Figure 15～Figure 19 that has illustrated, mainly different structures is described.

As shown in figure 31, the trailing flank of the cover 9 of present embodiment upwards linked to each other with the week of right flank at cover 9.Particularly, the trailing flank of cover 9 circumferentially links to each other in the whole zone of above-below direction with right flank.Similarly, the trailing flank of cover 9 circumferentially links to each other in the whole zone of above-below direction with left surface, the leading flank of cover 9 circumferentially links to each other in the whole zone of above-below direction with right flank, and the leading flank of cover 9 circumferentially links to each other in the whole zone of above-below direction with left surface.

That is, in the present embodiment, circumferentially the linking to each other in the whole zone at above-below direction each other of cover 9 in the adjacent side that makes progress in week.In addition, whole sides of cover 9 upwards linked to each other in week.That is, the cover 9 of present embodiment forms the roughly quadrangular barrel shape that whole sides circumferentially link to each other in the whole zone of above-below direction.In the present embodiment, as shown in figure 31, be formed with curved face part (fillet part) in the coupling part in the adjacent side that makes progress in week of cover 9, but lateral ends also directly quadrature connection each other.

In the present embodiment, wobble drive mechanism 46 comprises: shake is revised with magnet 321, is revised shake correction coil 23 with magnet 321 relative configurations with shake.The wobble drive mechanism 46 of present embodiment comprises shaking for four to be revised with magnet 321 and four shake correction coils 23.

Shake correction forms the tabular of essentially rectangular with magnet 321.In addition, shake correction is made of the first magnet sheet 321a and these two magnet sheets of the second magnet sheet 321b with magnet 321.Particularly, under the state of the upper surface butt of the lower surface of the first magnet sheet 321a and the second magnet sheet 321b, the first magnet sheet 321a and the second magnet sheet 321b are adhesively fixed, and revise with magnet 321 thereby form shake.It is identical that the first magnet sheet 321a and the second magnet sheet 321b form width.As mentioned below, the thickness of the first magnet sheet 321a is different with the thickness of the second magnet sheet 321b.

In the present embodiment, on revising with two faces of magnet 321, shake is formed with the two poles of the earth magnetic pole to go up overlapping form respectively at above-below direction (being the axial of cover 9).In addition, in the present embodiment, shake correction is separately fixed on the side of cover 9 with magnet 321, makes the shake correction that makes progress adjacent in the week of the cover 9 magnetic pole difference of magnet 321.That is, shake correction is separately fixed on the side of cover 9 with magnet 321, makes in the magnetic pole difference of the first adjacent magnet sheet 321a that makes progress in the week of cover 9, and makes in the magnetic pole difference of the second adjacent magnet sheet 321b that makes progress in week.

Particularly, in the present embodiment, as shown in figure 31, the shake correction that is fixed on the right flank of cover 9 is magnetized to the S utmost point with the right flank of the first magnet sheet 321a of magnet 321 (revising with the relative opposite face of coil 23 with shake), left surface is magnetized to the N utmost point, above-mentioned shake correction is magnetized to the N utmost point with the right flank of the second magnet sheet 321b of magnet 321 (revising with the relative opposite face of coil 23 with shake), and left surface is magnetized to the S utmost point.Similarly, though it is not shown, but the shake correction that is fixed on the left surface of the cover 9 relative with the right flank of cover 9 is magnetized to the S utmost point with the left surface of the first magnet sheet 321a of magnet 321 (revising with the relative opposite face of coil 23 with shake), right flank is magnetized to the N utmost point, above-mentioned shake correction is magnetized to the N utmost point with the left surface of the second magnet sheet 321b of magnet 321 (revising with the relative opposite face of coil 23 with shake), and right flank is magnetized to the S utmost point.

In addition, in the present embodiment, as shown in figure 31, the shake correction that is fixed on the trailing flank of cover 9 is magnetized to the N utmost point with the trailing flank of the first magnet sheet 321a of magnet 321 (revising with the relative opposite face of coil 23 with shake), leading flank is magnetized to the S utmost point, above-mentioned shake correction is magnetized to the S utmost point with the trailing flank of the second magnet sheet 321b of magnet 321 (revising with the relative opposite face of coil 23 with shake), and leading flank is magnetized to the N utmost point.Similarly, though it is not shown, but the shake correction that is fixed on the leading flank of the cover 9 relative with the trailing flank of cover 9 is magnetized to the N utmost point with the leading flank of the first magnet sheet 321a of magnet 321 (revising with the relative opposite face of coil 23 with shake), trailing flank is magnetized to the S utmost point, above-mentioned shake correction is magnetized to the S utmost point with the leading flank of the second magnet sheet 321b of magnet 321 (revising with the relative opposite face of coil 23 with shake), and trailing flank is magnetized to the N utmost point.

In addition, be fixed on cover 9 about the side on the shake correction with the lateral surface of magnet 321 with towards the below gradually to the left and right the open form in the outside of direction tilt, this shake correction is roughly trapezoidal with the shape that magnet 321 forms when fore-and-aft direction is observed.Similarly, be fixed on the side of front and back of cover 9 the shake correction with the lateral surface of magnet 321 with towards the below gradually forwards, backwards the open form in the outside of direction tilt, this shake correction is roughly trapezoidal with the shape that magnet 321 forms when left and right directions is observed.Therefore, it is identical that the first magnet sheet 321a and the second magnet sheet 321b form width, but the thickness of the first magnet sheet 321a is different with the thickness of the second magnet sheet 321b.

As mentioned above, be fixed on cover 9 about the side on the shake correction with the lateral surface of magnet 321 with towards the below gradually to the left and right the open form in the outside of direction tilt, be fixed on the side of front and back of cover 9 the shake correction with the lateral surface of magnet 321 with towards the below gradually forwards, backwards the open form in the outside of direction tilt.Therefore, shake is revised with magnet 321 and the gap of shake correction with coil 23 and is narrowed down towards the below.

In addition, in the present embodiment, as shown in figure 30, shake is revised with magnet 321 and shake and revised with coil 23 relative being configured to: the upside that is configured in the bearing surface of the first magnet sheet 321a and the second magnet sheet 321b with the center on above-below direction of coil 23 is revised in shake.

(the main effect of present embodiment)

As mentioned above, in the present embodiment, shake revise with magnet 321 with the shake correction side relative with coil 23 on be formed with the magnetic pole at the N utmost point and these the two poles of the earth of the S utmost point.Therefore, with revise in shake with magnet 321 revise with the magnetic pole that is formed with the N utmost point and the S arbitrary utmost point in extremely on the relative side of coil 23 with shake the time compare, can effectively utilize shake correction coil 23.That is, can utilize formation to be wound into roughly rectangular shake correction assigns to produce wobble drive mechanism 46 with two long legs of the upper and lower side of coil 23 driving force.Therefore, in the present embodiment, can improve the driving force of wobble drive mechanism 46,, also can obtain the driving force that enough being used to makes lens driving module 201 swings even when optical unit 101 miniaturizations that have shake correcting function, slimming.

In addition, in the present embodiment, shake revise with magnet 321 with the shake correction side relative with coil 23 on be formed with the two poles of the earth magnetic pole, therefore, revise with magnet 321 relative with coil 23 with a shake by a shake is revised, effectively utilizing shake to revise, can improve the driving force of wobble drive mechanism 46 with in the coil 23.Therefore, can simplify the structure of the optical unit 101 that has shake correcting function.

In the present embodiment, shake correction is fixed on the side of cover 9 with magnet 321, makes the shake correction that makes progress adjacent in the week of the cover 9 magnetic pole difference of magnet 321.Therefore, shown in the arrow A 1 of Figure 31, form magnetic circuit easily with 321 of magnets in circumferentially adjacent shake correction.Promptly, shown in figure 32, so that the shake correction that the week of cover 99 makes progress adjacent with the magnetic pole of magnet 321 identical form will shake when revising on the side that is fixed on cover 99 with magnet 321, shown in arrow A 10, the magnetic line of force of revising with magnet 321 generations from a shake bumps against with the magnetic line of force of revising with magnet 321 generations from another shake, be difficult to form magnetic circuit in circumferentially adjacent shake correction with 321 of magnets, but in the present embodiment, as shown in figure 31, form magnetic circuit in circumferentially adjacent shake correction easily with 321 of magnets.Therefore, can effectively improve the driving force of wobble drive mechanism 46.

In the present embodiment, circumferentially the linking to each other in the whole zone at above-below direction each other of cover 9 in the adjacent side that makes progress in week.Therefore, shown in the arrow A 2 of Figure 31, form magnetic circuit easily with 321 of magnets in circumferentially adjacent shake correction.That is, shown in figure 32, when between the circumferential adjacent side of cover 99, forming slit 1000, be difficult to form magnetic circuit in circumferentially adjacent shake correction with 321 of magnets, but in the present embodiment, as shown in figure 31, form magnetic circuit easily with 321 of magnets in circumferentially adjacent shake correction.Therefore, can effectively improve the driving force of wobble drive mechanism 46.

Research according to the present application people, with revise comparing when being formed with a utmost point magnetic pole on the relative side of coil 23 with magnet 321 with the shake correction in shake, revise with the revising when being formed with the two poles of the earth magnetic pole on the side relative of magnet 321 in shake, can make the driving force raising 144% of wobble drive mechanism 6 with coil 23 with shake.

In addition, research according to the present application people, revise with magnet 321 with shake so that when the shake correction that the week of cover 9 makes progress adjacent is fixed on the side of cover 9 with the identical form of the magnetic pole of magnet 321, compare, shake is revised with magnet 321 so that when the shake correction that the week of cover 9 makes progress adjacent is fixed on the side of cover 9 with the different form of the magnetic pole of magnet 321, can make the driving force raising 7% of wobble drive mechanism 46.

In addition, research according to the present application people, compare when between the circumferential adjacent side of cover 99, being formed with slit 1000, during circumferentially the linking to each other in the whole zone at above-below direction each other of cover 9, can make the driving force of wobble drive mechanism 46 improve 3% in the adjacent side that makes progress in week.

(other embodiment)

Above-mentioned embodiment is an example of comparatively desirable form of the present invention, but is not limited thereto, and the present invention can carry out various distortion and implement in the scope that does not change purport of the present invention.

In the above-mentioned embodiment, shake correction is made of the first magnet sheet 321a and these two magnet sheets of the second magnet sheet 321b with magnet 321.In addition, for example also can be like this: shake correction be made of a magnet sheet with magnet 321.In this case, on shake was revised with each face in two faces of magnet 321, a magnet sheet was magnetized to and is formed on the two poles of the earth magnetic pole overlapping on the above-below direction.

In the above-mentioned embodiment, on two faces of shake correction, be formed with the two poles of the earth magnetic pole with form overlapping on above-below direction respectively with magnet 321.In addition, for example also can on revising two faces with magnet 321, shake form three magnetic poles more than extremely respectively.

In the above-mentioned embodiment, shake correction is installed on the cover 9 with magnet 321, and shake correction is installed on the shell 116 with coil 23.In addition, for example also can be like this: shake correction be installed on the shell 116 by yoke with magnet 321, and the shake correction is installed on the cover 9 with coil 23.If shell 116 usefulness magnetic materials form, then shake correction also can be directly installed on the shell 116 with magnet 321.

In the above-mentioned embodiment, circumferentially the linking to each other in the whole zone at above-below direction each other of cover 9 in the adjacent side that makes progress in week.In addition, for example also can be like this: circumferentially the linking to each other at the part place of above-below direction each other of cover 9 in the adjacent side that makes progress in week.In addition, in the above-mentioned embodiment, whole sides of cover 9 upwards linked to each other in week, but also can be to have only two or three sides of selecting arbitrarily upwards to link to each other in week.

In the above-mentioned embodiment, shake correction is fixed on the side of cover 9 with magnet 321, make the shake correction that makes progress adjacent in the week of the cover 9 magnetic pole difference of magnet 321, but also can be like this: shake correction be fixed on the side of cover 9 with magnet 321, makes the magnetic pole of the shake correction usefulness magnet 321 that makes progress adjacent in the week of cover 9 identical.In addition, in the above-mentioned embodiment, cover 9 forms roughly quadrangular barrel shape, but cover 9 also can form quadrangular barrel polygonal tubular in addition.In addition, cover 9 also can form cylindric.

Claims (38)

1. optical unit that has shake correcting function is characterized in that having:

Movable module, this movable module is equiped with lens at least;

Fixed body, this fixed body support described movable module;

The shake detecting sensor, this shake detecting sensor detects the shake of described movable module; And

Organize shake correction at the most for one group and use the magnetic driving mechanism, organizing shake at the most for this group revises with the magnetic driving mechanism in the both sides of described movable module formation, and described movable module is swung on described fixed body according to the testing result of described shake detecting sensor, to revise the shake of described movable module

Organize the shake correction at the most with in the magnetic driving mechanism for described one group, at least one group is that the shake correction is used coil to be kept by described movable module with magnet by described fixed body maintenance and shake correction.

2. the optical unit that has shake correcting function as claimed in claim 1 is characterized in that,

Three orthogonal on described fixed body directions are made as X-axis, Y-axis, Z axle respectively, and will be made as the Z axle along the direction of the optical axis of described lens the time,

As described shake correction magnetic driving mechanism, formation is revised with the magnetic driving mechanism and the second shake correction by first shake and is used the magnetic driving mechanism with two groups of shake corrections that the magnetic driving mechanism forms, described first shake is revised with the magnetic driving mechanism and is produced the magnetic driving force that described movable module is swung around X-axis, described second shake is revised with the magnetic driving mechanism and is produced the magnetic driving force that described movable module is swung around Y-axis

Described first shake is revised with magnetic driving mechanism and described second shake and is revised with in any of magnetic driving mechanism, all is that shake is revised and is held in described fixedly side and shake with magnet and revises with coil and kept by described movable module.

3. the optical unit that has shake correcting function as claimed in claim 2 is characterized in that, described shake detecting sensor is installed in described movable module.

4. the optical unit that has shake correcting function as claimed in claim 3, it is characterized in that, described movable module comprises lens driving module, this lens driving module has: described lens are remained on inboard moving body, the lens actuating device that this moving body is moved along the optical axis direction of described lens, be equiped with the supporter of this lens actuating device and described moving body, this supporter has: module lid, at the imaging apparatus keeper of the side maintenance imaging apparatus opposite with the side that is taken, described shake detecting sensor and described imaging apparatus keeper are installed in described movable module integratedly.

5. the optical unit that has shake correcting function as claimed in claim 4, it is characterized in that, described movable module can swingingly be disposed at the inboard as the fixed cap of shell that constitutes described fixed body by spring members, on the outside surface of described module lid, keeping described shake correction coil, on the inside surface of described fixed cap to keep described shake correction magnet with the relative form of coil with described shake correction.

6. the optical unit that has shake correcting function as claimed in claim 3 is characterized in that, comes described shake correction is powered with coil by the flexible wiring substrate that described shake detecting sensor is connected with external electric.

7. the optical unit that has shake correcting function as claimed in claim 3 is characterized in that,

On described movable module, at the rear side installing imaging apparatus of described lens,

Described shake detecting sensor detects the hand shake when taking.

8. the optical unit that has shake correcting function as claimed in claim 7 is characterized in that, comes described shake correction is powered with coil by the flexible wiring substrate that described imaging apparatus is connected with external electric.

9. the optical unit that has shake correcting function as claimed in claim 1 is characterized in that, described shake detecting sensor is installed in described movable module.

10. the optical unit that has shake correcting function as claimed in claim 9, it is characterized in that, described movable module comprises lens driving module, this lens driving module has: described lens are remained on inboard moving body, the lens actuating device that this moving body is moved along the optical axis direction of described lens, be equiped with the supporter of this lens actuating device and described moving body, this supporter has: module lid, at the imaging apparatus keeper of the side maintenance imaging apparatus opposite with the side that is taken, described shake detecting sensor and described imaging apparatus keeper are installed in described movable module integratedly.

11. the optical unit that has shake correcting function as claimed in claim 10, it is characterized in that, described movable module can swingingly be disposed at the inboard as the fixed cap of shell that constitutes described fixed body by spring members, on the outside surface of described module lid, keeping described shake correction coil, on the inside surface of described fixed cap to keep described shake correction magnet with the relative form of coil with described shake correction.

12. the optical unit that has shake correcting function as claimed in claim 9 is characterized in that, comes described shake correction is powered with coil by the flexible wiring substrate that described shake detecting sensor is connected with external electric.

13. the optical unit that has shake correcting function as claimed in claim 9 is characterized in that,

On described movable module, at the rear side installing imaging apparatus of described lens,

Described shake detecting sensor detects the hand shake when taking.

14. the optical unit that has shake correcting function as claimed in claim 13 is characterized in that, comes described shake correction is powered with coil by the flexible wiring substrate that described imaging apparatus is connected with external electric.

15. as each described optical unit that has shake correcting function in the claim 1,2,3,9, it is characterized in that described movable module is equiped with lens actuating device, this lens actuating device drives described lens along optical axis direction in the magnetic mode.

16. the optical unit that has shake correcting function as claimed in claim 15 is characterized in that, comes described shake correction is powered with coil by the flexible wiring substrate that described lens actuating device is connected with external electric.

17. an optical unit that has shake correcting function is characterized in that, comprising:

Lens driving module, this lens driving module are equiped with the lens actuating device of lens, imaging apparatus and the described lens of driving;

Sensor, this sensor are used for the variation of the inclination of described lens driving module is detected; And

The shake correction mechanism, this shake correction mechanism makes described lens driving module swing according to the testing result of described sensor, thereby revises shake,

Described shake correction mechanism comprises: make the wobble drive mechanism of described lens driving module swing, as the fulcrum of the oscillation centre of described lens driving module,

Described wobble drive mechanism comprises that shake correction opposite each other uses magnet with coil and shake correction,

Described shake correction is with in coil configuration at least one zone in first area and second area, in the described first area, the direction of the magnetic line of force that described shake correction produces with magnet is slightly away from the direction of described fulcrum, in the described second area, the direction of the described magnetic line of force is slightly towards the direction of described fulcrum.

18. the optical unit that has shake correcting function as claimed in claim 17 is characterized in that,

Described shake correction is wound into essentially rectangular with coil and forms, and described shake correction comprises the first limit portion parallel to each other and the second limit portion with coil,

Described shake correction with magnet with the described shake correction opposite face relative with coil on, be formed with the length direction of the length direction of the described first limit portion and the described second limit portion overlapping the two poles of the earth magnetic pole on the direction of quadrature roughly,

Will be away from a side of described fulcrum during as the first limit portion, the described first limit portion be configured in the described first area, and the described second limit portion is configured in the described second area.

19. the optical unit that has shake correcting function as claimed in claim 18, it is characterized in that, comprise shell, this shell forms roughly quadrangular barrel shape for supporting described lens driving module, described lens driving module is configured in the cover that forms quadrangular barrel shape roughly

On the lateral surface of described cover, fix described shake correction magnet, on the medial surface of described shell, fixing described shake correction coil.

20. the optical unit that has shake correcting function as claimed in claim 19 is characterized in that, comprises base body, this base body is fixed into one at the lower end side and the described shell of described optical unit, thereby constitutes the supporter that supports described lens driving module,

Described sensor configuration is in the bottom of described lens driving module, and described fulcrum is formed between the bottom and described base body of described lens driving module,

Described shake correction becomes with coil configuration: described shake correction is configured in upside with the magnetic force center on the described optical axis direction of magnet with respect to described shake correction at the center on the described optical axis direction with coil on described optical axis direction.

21. the optical unit that has shake correcting function as claimed in claim 18 is characterized in that,

Described shake correction forms roughly rectangle with coil, has: two long legs parallel to each other, form shortly and two short legs parallel to each other than described long leg,

Described first limit portion and the described second limit portion are described long legs.

22. an optical unit that has shake correcting function is characterized in that, comprising:

Lens driving module, this lens driving module are equiped with the lens actuating device of lens, imaging apparatus and the described lens of driving;

Sensor, this sensor are used for the variation of the inclination of described lens driving module is detected; And

The shake correction mechanism, this shake correction mechanism makes described lens driving module swing according to the testing result of described sensor, thereby revises shake,

Described shake correction mechanism comprises the wobble drive mechanism that makes described lens driving module swing,

Described wobble drive mechanism comprises that shake correction opposite each other uses magnet with coil and shake correction,

Described shake correction is with in coil configuration at least one zone in first area and second area, in the described first area, the direction of the magnetic line of force that described shake correction produces with magnet is slightly away from the direction of the oscillation centre of described lens driving module, in the described second area, the direction of the described magnetic line of force is slightly towards the direction of described oscillation centre.

23. the optical unit that has shake correcting function as claimed in claim 22 is characterized in that,

Described shake correction is wound into essentially rectangular with coil and forms, and described shake correction comprises the first limit portion parallel to each other and the second limit portion with coil,

Described shake correction with magnet with the described shake correction opposite face relative with coil on, be formed with the length direction of the length direction of the described first limit portion and the described second limit portion overlapping the two poles of the earth magnetic pole on the direction of quadrature roughly,

The described first limit portion is configured in the described first area, and the described second limit portion is configured in the described second area.

24. the optical unit that has shake correcting function as claimed in claim 23, it is characterized in that, comprise shell, this shell forms roughly quadrangular barrel shape for supporting described lens driving module, described lens driving module is configured in the cover that forms quadrangular barrel shape roughly

On the lateral surface of described cover, the both sides of the optical axis direction of described lens are fixed in described shake correction with respect to described oscillation centre with magnet, on the medial surface of described shell, be fixed in the both sides of described optical axis direction with respect to described oscillation centre with coil with the relative described shake correction of magnet with described shake correction.

25. the optical unit that has shake correcting function as claimed in claim 24, it is characterized in that, described lens driving module utilizes leaf spring to be supported on the described shell with the form that can swing, and described leaf spring is disposed at two described shake corrections on the lateral surface that is fixed on described cover with between the magnet and be fixed on two described shake corrections on the medial surface of described shell with between the coils.

26. the optical unit that has shake correcting function as claimed in claim 23 is characterized in that,

Described shake correction forms roughly rectangle with coil, has: two long legs parallel to each other, form shortly and two short legs parallel to each other than described long leg,

Described first limit portion and the described second limit portion are described long legs.

27. an optical unit that has shake correcting function is characterized in that, comprising:

Lens driving module, this lens driving module are equiped with the lens actuating device of lens, imaging apparatus and the described lens of driving;

Supporter, the described lens driving module of this support body supports;

Sensor, this sensor are used for the variation of the inclination of described lens driving module is detected; And

The shake correction mechanism, this shake correction mechanism makes described lens driving module swing with respect to described supporter according to the testing result of described sensor, thereby revises shake,

Described shake correction mechanism comprises: make the swing of described lens driving module wobble drive mechanism, become the fulcrum of the oscillation centre of described lens driving module,

Described wobble drive mechanism comprises that shake correction opposite each other uses magnet with coil and shake correction,

On the optical axis direction of described lens driving module, described fulcrum is disposed at the position of departing from the relative position of magnet with coil and described shake correction from described shake correction,

Described shake correction becomes with configurations of magnets with described shake correction with coil: described shake correction departs from described optical axis direction with the magnetic force center on the described optical axis direction of magnet at center on the described optical axis direction and described shake correction with coil.

28. an optical unit that has shake correcting function is characterized in that, comprising:

Lens driving module, this lens driving module are equiped with the lens actuating device of lens, imaging apparatus and the described lens of driving;

Supporter, the described lens driving module of this support body supports;

Sensor, this sensor are used for the variation of the inclination of described lens driving module is detected; And

The shake correction mechanism, this shake correction mechanism makes described lens driving module swing with respect to described supporter according to the testing result of described sensor, thereby revises shake,

Described shake correction mechanism comprises the wobble drive mechanism that makes described lens driving module swing,

Described wobble drive mechanism comprises that shake correction opposite each other uses magnet with coil and shake correction,

On the optical axis direction of described lens driving module, the oscillation centre of described lens driving module is disposed at the position of departing from the relative position of magnet with coil and described shake correction from described shake correction,

Described shake correction becomes with configurations of magnets with described shake correction with coil: described shake correction departs from described optical axis direction with the magnetic force center on the described optical axis direction of magnet at center on the described optical axis direction and described shake correction with coil.

29. as claim 27 or the 28 described optical units that have shake correcting function, it is characterized in that,

Described shake correction is fixed in the magnet holding member of swinging with described lens driving module with magnet, and described shake correction uses coil stationary in described supporter,

Described shake correction with coil the center configuration on the described optical axis direction on the described optical axis direction than described shake correction with position, the magnetic force center on described optical axis direction of magnet away from described oscillation centre.

30. the optical unit that has shake correcting function as claimed in claim 29 is characterized in that,

Described shake correction is wound into essentially rectangular with coil and forms, and described shake correction comprises the first limit portion parallel to each other and the second limit portion with coil,

Described shake correction with magnet with the described shake correction opposite face relative with coil on be formed with the two poles of the earth magnetic pole overlapping on described optical axis direction,

The described first limit portion the center configuration on the described optical axis direction on described optical axis direction than the two poles of the earth in the described magnetic pole magnetic force center of a magnetic pole away from the position of described oscillation centre.

31. the optical unit that has shake correcting function as claimed in claim 30, it is characterized in that, the described second limit portion in the center configuration on the described optical axis direction in being described shake correction with position, the border of the described magnetic pole in the two poles of the earth at the magnetic force center on described optical axis direction of magnet likening on the described optical axis direction near described oscillation centre, and be disposed on described optical axis direction than position, the magnetic force center of another magnetic pole in the described magnetic pole in the two poles of the earth away from described oscillation centre.

32. the optical unit that has shake correcting function as claimed in claim 30 is characterized in that,

Described shake correction forms roughly rectangle with coil, has: two long legs parallel to each other, form shortly and two short legs parallel to each other than described long leg,

Described first limit portion and the described second limit portion are described long legs.

33. an optical unit that has shake correcting function is characterized in that, comprising:

Lens driving module, this lens driving module are equiped with the lens actuating device of lens, imaging apparatus and the described lens of driving;

Sensor, this sensor detects the inclination of described lens driving module; And

The shake correction mechanism, this shake correction mechanism makes described lens driving module swing according to the testing result of described sensor, thereby revises shake,

Described shake correction mechanism comprises the wobble drive mechanism that makes described lens driving module swing,

Described wobble drive mechanism comprises that shake correction opposite each other uses magnet with coil and shake correction,

Described shake correction with magnet with the described shake correction opposite face relative with coil on be formed with magnetic pole more than the two poles of the earth.

34. the optical unit that has shake correcting function as claimed in claim 33 is characterized in that, described shake correction with magnet with the described shake correction opposite face relative with coil on be formed with the two poles of the earth magnetic pole.

35. the optical unit that has shake correcting function as claimed in claim 34 is characterized in that, comprises the magnet holding member, this magnet holding member forms roughly polygonal tubular and keeps described shake correction magnet,

Described shake correction with magnet with the described shake correction opposite face relative with coil on, with described magnet holding member axially on overlapping form be formed with the two poles of the earth magnetic pole,

Described shake correction is separately fixed on the side of described magnet holding member with magnet, so that in the magnetic pole difference of adjacent described shake correction with magnet that make progress in the week of described magnet holding member.

36. the optical unit that has shake correcting function as claimed in claim 35 is characterized in that, making progress in described week at least two the adjacent sides that make progress in described week of described magnet holding member links to each other.

37. the optical unit that has shake correcting function as claimed in claim 36 is characterized in that, the whole side of described magnet holding member upwards linked to each other in described week.

38. the optical unit that has shake correcting function as claimed in claim 35, it is characterized in that, comprise shell, this shell supports described lens driving module and forms roughly quadrangular barrel shape, described magnet holding member forms roughly quadrangular barrel shape, on the lateral surface of described magnet holding member, be fixed with described shake correction magnet, on the medial surface of described shell, be fixed with described shake correction coil.

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