CN101726851B - 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

Optical unit with shake correcting function

Technical field

The present invention relates to a kind of optical unit with shake correcting function that lensed module swings to revise the shakes such as hand shake that makes to install.

Background technology

Be installed in optical devices for shooting, laser pen on mobile phone and 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 easily produces shake.

Therefore, the optical unit for shooting using for optical devices for shooting that carry use etc., such technology has been proposed: by elastic body, movable module is supported on fixed body, and on each side of movable module, form the actuator that utilizes piezoelectric element, according to the testing result of hand shaking detection sensor, movable module is swung around the X-axis with actuator optical axis direction (Z-direction) quadrature and Y-axis, thereby revise hand shake (with reference to patent documentation 1).

Patent documentation 1: Figure 12 of Japanese Patent Laid-Open 2007-129295 communique

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

Patent documentation 2: Japanese Patent Laid-Open 2007-310084 communique

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

Yet, the structure disclosing as patent documentation 1, in the occasion of utilizing the actuator of piezoelectric element, fixed body is mechanically connected by actuator with movable module, the problem such as therefore exist assembling to bother and resistance to vibration is poor.In addition, sometimes also utilize to drive with coil and drive to form tilting mechanism with magnet, but now cannot to respond fast, shake correction with less torque.

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

Summary of the invention

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

In addition, though the second technical matters of the present invention be to provide a kind of when miniaturization, slimming, also can obtain enough for making to be equiped with the optical unit with shake correcting function of the driving force that the lens driver of lens and imaging apparatus swings.

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

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

In the present invention, comparatively it is desirable to, three directions orthogonal on above-mentioned fixed body are made as respectively to X-axis, Y-axis, Z axis, and when the direction along above-mentioned optical axis is made as to Z axis, as above-mentioned shake correction magnetic driving mechanism, formation is made the first shake of the magnetic driving force that above-mentioned movable module swings around X-axis revise with magnetic driving mechanism and produces two groups of the second shake of the magnetic driving force that above-mentioned movable module swings around Y-axis being revised forms with magnetic driving mechanism to shake correction magnetic driving mechanisms by generation, above-mentioned first shakes correction uses in any of magnetic driving mechanism with magnetic driving mechanism and above-mentioned the second shake correction, all that shake correction is held in above-mentioned fixedly side with magnet, and shake correction is kept by above-mentioned movable module with coil.

In the present invention, comparatively it is desirable to, above-mentioned shaking detection sensor is installed in above-mentioned movable module.Particularly, can adopt such structure: above-mentioned movable module comprises lens driving module, this lens driving module has: by said lens remain on inner side moving body, make 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, in contrary with the side that an is taken side, keep the imaging apparatus keeper of imaging apparatus, above-mentioned shaking detection sensor and above-mentioned imaging apparatus keeper are installed in above-mentioned movable module integratedly.In this case, comparatively it is desirable to, above-mentioned movable module can swingingly be configured in the inner side of the fixed cap as shell that forms above-mentioned fixed 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 above-mentioned fixed cap to keep above-mentioned shake correction magnet with above-mentioned shake correction by the relative form of coil.If adopt this structure, the shake of optical axis is directly detected by shaking detection sensor, thereby can revise accurately shake.

In this case, comparatively it is desirable to, by above-mentioned shaking detection sensor is powered to above-mentioned coil with the outside flexible wiring substrate being electrically connected to.While adopting this structure, between movable module and outside, need to shaking detection sensor be electrically connected to and shake correction is electrically connected to coil, but by sharing flexible wiring substrate, simplified structure correspondingly, and can reduce costs.

In the present invention, also can adopt such structure: the rear side of the said lens in above-mentioned movable module installing imaging apparatus, the hand shake of above-mentioned shaking detection sensor when taking detects.While forming like this, the hand shake in the time of preventing from pressing shutter.

In this case, comparatively it is desirable to, by above-mentioned imaging apparatus is powered with coil to above-mentioned shake correction with the outside flexible wiring substrate being electrically connected to.While adopting this structure, between movable module and outside, need to imaging apparatus be electrically connected to and shake correction is electrically connected to coil, but by sharing flexible wiring substrate, simplified structure correspondingly, and can reduce costs.

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

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

In order to solve above-mentioned the second technical matters, the feature of the optical unit with 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 for detecting the variation of the inclination of said lens driver module, and shake correction mechanism, its testing result according to the sensor swings said lens driver module, thereby revise shake, above-mentioned shake correction mechanism comprises: the swing driving mechanism that said lens driver module is swung, fulcrum as the oscillation centre of said lens driver module, above-mentioned swing driving mechanism comprises coil and shake correction magnet for shake correction opposite each other, the direction of the magnetic line of force that above-mentioned shake correction produces with magnet in above-mentioned shake correction by coil configuration be away from the first area of direction of above-mentioned fulcrum and the direction of the above-mentioned magnetic line of force, to be slightly at least one region in the second area of the direction of above-mentioned fulcrum slightly.

In optical unit with shake correcting function of the present invention, the shake correction that forms swing driving mechanism with the direction that coil configuration revises in shake the magnetic line of force producing with magnet be slightly away from the first area of the direction of fulcrum 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 by shake being revised to the electromagnetic force produce with coil power supply in general with centered by fulcrum and use the tangential direction of circle of coil roughly consistent through shake correction.That is, can make the direction of the electromagnetic force by shake correction is produced with coil power supply, in general towards the direction for generation of make the oscillatory forces of lens driving module swing centered by fulcrum.Therefore,, in the present invention, can effectively utilize shake and revise the magnetic flux producing with magnet, thereby can improve the driving force of swing driving mechanism.Consequently, in the present invention, even when the optical unit miniaturization with shake correcting function, slimming, also can obtain enough driving forces for lens driving module is swung.

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 magnet on the lateral surface of above-mentioned cover, and on the medial surface of shell, fix above-mentioned shake correction coil.Like this, if lens driving module is configured in the cover that forms quadrangular barrel shape roughly, and utilize and to form the roughly shell of quadrangular barrel shape and carry out support of lens driver module, shake can be revised with magnet and shake correction and is fixed on the side that is respectively plane with coil, therefore, can easily shake be revised with magnet and by coil configuration, become relativeness with shake correction.In this case, can adopt such structure: comprise base body, this base body is fixed into one at lower end side and the above-mentioned shell of optical unit, thereby form the supporter that supports 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, above-mentioned shake correction becomes by coil configuration: the above-mentioned shake correction on 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 above-mentioned optical axis direction with the center of coil on above-mentioned optical axis direction.While forming like this, can lengthen from oscillation centre and revise the distance with coil to shake, therefore, can increase the torque for making lens driving module swing centered by oscillation centre.

In addition, in order to solve above-mentioned the second technical matters, the feature of the optical unit with 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 for detecting the variation of the inclination of lens driving module, and shake correction mechanism, its testing result according to sensor swings lens driving module, thereby revise shake, shake correction mechanism comprises the swing driving mechanism that lens driving module is swung, swing driving mechanism comprises coil and shake correction magnet for shake correction opposite each other, it be away from the first area of direction of the oscillation centre of said lens driver module and the direction of the above-mentioned magnetic line of force, to be slightly at least one region in the second area of the direction of above-mentioned oscillation centre slightly that shake is revised by the direction that coil configuration revises in shake the magnetic line of force producing with magnet.

In optical unit with shake correcting function of the present invention, the shake correction that forms swing driving mechanism with the direction that coil configuration revises in shake the magnetic line of force producing with magnet be slightly away from the first area of the direction of the oscillation centre of lens driving module 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 by shake being revised to the electromagnetic force produce with coil power supply in general with centered by oscillation centre and use the tangential direction of circle of coil roughly consistent through shake correction.That is, can make the direction of the electromagnetic force by shake correction is produced with coil power supply in general towards producing for make the direction of the oscillatory forces of lens driving module swing centered by oscillation centre.Therefore,, in the present invention, can effectively utilize shake and revise the magnetic flux producing with magnet, thereby can improve the driving force of swing driving mechanism.Consequently, in the present invention, even when the optical unit miniaturization with shake correcting function, slimming, also can obtain enough driving forces for lens driving module is swung.

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

In the present invention, comparatively it is desirable to, shake correction becomes essentially rectangular and forms with coil winding, shake correction comprises first side portion parallel to each other and Second Edge portion with coil, in shake, revise revising on the opposite face relative with coil with shake with magnet, be formed with at the length direction of the length direction with first side portion and Second Edge portion overlapping the two poles of the earth magnetic pole in the direction of quadrature roughly, first side portion is configured in first area, and Second Edge portion is configured in second area.While forming like this, can first side portion with in Second Edge portion, produce and the direction of the oscillatory forces of the lens driving module of generation centered by fulcrum or the oscillation centre electromagnetic force of consistent direction roughly.Therefore, can effectively improve the driving force of swing driving mechanism.

In addition, in order to solve above-mentioned the second technical matters, the feature of the optical unit with 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 for detecting the variation of the inclination of lens driving module, and shake correction mechanism, its testing result according to sensor makes lens driving module swing with respect to supporter, thereby revise shake, shake correction mechanism comprises: the swing driving mechanism that lens driving module is swung, become the fulcrum of the oscillation centre of lens driving module, swing driving mechanism comprises coil and shake correction magnet for shake correction opposite each other, 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, shake is revised with coil to become by configurations of magnets with shake correction: departing from optical axis direction with the magnetic force center on optical axis direction of magnet at optical axis direction Shang center and shake correction with coil revised in shake.

In optical unit with 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 by configurations of magnets with shake correction: departing from optical axis direction with the magnetic force center on optical axis direction of magnet at optical axis direction Shang center and shake correction with coil revised in shake.Therefore the direction that, can revise the magnetic line of force producing with magnet in shake for slightly away from the region of the direction of fulcrum and/or the direction of the magnetic line of force be configuration shake correction coil in the region of the direction of fulcrum slightly.Therefore, can make direction by shake being revised to the electromagnetic force produce with coil power supply in general with centered by fulcrum and use the tangential direction of circle of coil roughly consistent through shake correction.That is, can make the direction of the electromagnetic force by shake correction is produced with coil power supply in general towards producing for make the direction of the oscillatory forces of lens driving module swing centered by fulcrum.Therefore,, in the present invention, can effectively utilize shake and revise the magnetic flux producing with magnet, thereby can improve the driving force of swing driving mechanism.Consequently, in the present invention, even when the optical unit miniaturization with shake correcting function, slimming, also can obtain enough driving forces for lens driving module is swung.

In addition, in order to solve above-mentioned the second technical matters, the feature of the optical unit with 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 for detecting the variation of the inclination of lens driving module, and shake correction mechanism, its testing result according to sensor makes lens driving module swing with respect to supporter, thereby revise shake, shake correction mechanism comprises the swing driving mechanism that lens driving module is swung, swing driving mechanism comprises coil and shake correction magnet for shake correction opposite each other, 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, shake is revised with coil to become by configurations of magnets with shake correction: departing from optical axis direction with the magnetic force center on optical axis direction of magnet at optical axis direction Shang center and shake correction with coil revised in shake.

In optical unit with 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 by configurations of magnets with shake correction: departing from optical axis direction with the magnetic force center on optical axis direction of magnet at optical axis direction Shang center and shake correction with coil revised in shake.Therefore the direction that, can revise the magnetic line of force producing with magnet in shake for slightly away from the region of the direction of oscillation centre and/or the direction of the magnetic line of force be configuration shake correction coil in the region of the direction of oscillation centre slightly.Therefore, can make direction by shake being revised to the electromagnetic force produce with coil power supply in general with centered by oscillation centre and use the tangential direction of circle of coil roughly consistent through shake correction.That is, can make the direction of the electromagnetic force by shake correction is produced with coil power supply in general towards producing for make the direction of the oscillatory forces of lens driving module swing centered by oscillation centre.Therefore,, in the present invention, can effectively utilize shake and revise the magnetic flux producing with magnet, thereby can improve the driving force of swing driving mechanism.Consequently, in the present invention, even when the optical unit miniaturization with shake correcting function, slimming, also can obtain enough driving forces for lens driving module is swung.

In the present invention, comparatively it is desirable to, shake correction is fixed on the magnet holding member swinging together with lens driving module with magnet, shake correction and be fixed on supporter with coil, shake is revised by the center configuration on optical axis direction of coil in using the magnetic force center of magnet away from the position of oscillation centre than the shake correction of optical axis direction on optical axis direction.While forming like this, can lengthen from oscillation centre and revise the distance with coil to shake, therefore, can increase the torque for making lens driving module swing centered by oscillation centre.That is, can improve the driving force of swing driving mechanism.

In the present invention, comparatively it is desirable to, shake correction becomes essentially rectangular and forms with coil winding, shake correction comprises first side portion parallel to each other and Second Edge portion with coil, in shake, revise on the opposite face relative with coil with shake correction with magnet and be formed with the two poles of the earth magnetic pole overlapping on optical axis direction, the center configuration on optical axis direction of first side portion 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 center configuration on optical axis direction of Second Edge portion is revised with the border of the two poles of the earth magnetic pole of the magnetic force center on optical axis direction of magnet and is approached the position of oscillation centre in be compared to shake on optical axis direction, and is disposed on optical axis direction the position away from oscillation centre than the magnetic force center of another magnetic pole in the magnetic pole of the two poles of the earth.While forming like this, can first side portion with in Second Edge portion, produce and the direction of the oscillatory forces of the lens driving module of generation centered by the oscillation centre electromagnetic force of consistent direction roughly.Therefore, can effectively improve the driving force of swing driving mechanism.

In the present invention, comparatively it is desirable to, shake correction forms roughly rectangle with coil, has: two long legs parallel to each other, two short legs that form short and parallel to each otherly than long leg, first side portion and Second Edge portion are long leg.While forming like this, while being short leg with first side portion with Second Edge portion, compare, can improve the driving force of swing driving mechanism.In addition, revise while forming roughly square with coil and compare with shake, when improving the driving force of swing driving mechanism, in the relative direction of long leg, can realize the miniaturization with the optical unit of shake correcting function.In addition, the short leg that the driving force of swing driving mechanism is contributed hardly shortens, and therefore, can reduce shake and revise the resistance value with coil, can reduce shake and revise the power consumption with coil.

In addition, in order to solve above-mentioned the second technical matters, the feature of the optical unit with 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 detects for the inclination to lens driving module; And hand shake correction mechanism, its testing result according to sensor swings lens driving module, thereby revise hand shake, hand shake correction mechanism comprises the swing driving mechanism that lens driving module is swung, swing driving mechanism comprises coil and shake correction magnet for shake correction opposite each other, in shake, revises revising on the opposite face relative with coil and being formed with magnetic poles more than the two poles of the earth with shake with magnet.

In optical unit with shake correcting function of the present invention, in shake, revise revising on the opposite face relative with coil and being formed with magnetic poles more than the two poles of the earth with shake with magnet.Therefore, and in shake, revise with the revising while being formed with a utmost point magnetic pole on the opposite face relative with coil and compare with shake of magnet, can effectively utilize the shake correction coil of the formation of reeling.That is, can increase shake and revise the live part by the generation driving force of coil.Therefore, in the present invention, can improve the driving force of swing driving mechanism, even when the optical unit miniaturization with shake correcting function, slimming, also can obtain enough driving forces for lens driving module is swung.

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

In the present invention, comparatively it is desirable to, optical unit with shake correcting function comprises that forming roughly polygonal tubular also keeps shake to revise the magnet holding member with magnet, in shake, revise revising on the opposite face relative with coil with form overlapping on magnet holding member axial and being formed with the two poles of the earth magnetic pole with shake with magnet, shake correction is separately fixed on the side of magnet holding member with magnet, so that different with the magnetic pole of magnet in the shake correction that the week of magnet holding member makes progress adjacent.While forming like this, easily between circumferentially adjacent shake correction is with magnet, form magnetic circuit.Therefore, can effectively improve the driving force of swing driving mechanism.Particularly, can adopt such structure: the roughly shell of quadrangular barrel shape that forms that comprises 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 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 were upwards connected in week.In this case, comparatively it is desirable to the whole side of magnet holding member was upwards connected in week.While forming like this, easily between circumferentially adjacent shake correction is with magnet, form magnetic circuit.Therefore, can effectively improve the driving force of swing driving mechanism.

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

In addition, in other optical unit with shake correcting function of the present invention, even when miniaturization, slimming, also can obtain enough driving forces swinging for making to be equiped with the lens driving module of lens and imaging apparatus.

Accompanying drawing explanation

Fig. 1 means the key diagram of applying the optical unit integral body with shake correcting function of the present invention.

Fig. 2 is the key diagram of the lens driving module that forms in the movable module of the application optical unit with shake correcting function of the present invention.

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

Fig. 4 means the key diagram of the cross section structure of applying the optical unit with shake correcting function of the present invention.

Fig. 5 means the key diagram of the cross section structure when application optical unit with shake correcting function of the present invention is dissectd in the position different from Fig. 4.

Fig. 6 observes the exploded perspective view of the application optical unit with shake correcting function of the present invention from front side.

Fig. 7 observes the exploded perspective view of the application optical unit with shake correcting function of the present invention from rear side.

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

Fig. 9 observes the application movable module of using with the optical unit of shake correcting function of the present invention and the exploded perspective view of flexible base, board from front side.

Figure 10 observes the application movable module of using with the optical unit of shake correcting function of the present invention and the exploded perspective view of flexible base, board from rear side.

Figure 11 is the key diagram of the application parts with the formation supporting mechanism in the optical unit of shake correcting function etc. of the present invention.

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

Figure 13 is the key diagram of applying the parts of the movable range with the movable module of restriction in the optical unit of shake correcting function of the present invention.

Figure 14 is the key diagram of applying the mechanism of the movable range with the movable module 1 of the restriction in the optical unit of shake correcting function of the present invention.

Figure 15 is the stereographic map of the related optical unit with 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 of coil for the shake correction shown in Figure 16.

Figure 18 is for the figure of the magnetic line of force that the shake correction shown in Figure 16 produces with magnet is described.

Figure 19 is for the figure of the direction of the electromagnetic force producing with coil power supply by the shake correction to shown in Figure 16 is described.

Figure 20 is for the figure of the effect of the optical unit with shake correcting function that embodiments of the present invention are related is described.

Figure 21 is for the figure of the condition of the simulation that the driving force of the swing driving mechanism shown in Figure 16 is compared is described.

Figure 22 means the curve map of the result of the simulation that the driving force of the swing driving mechanism shown in Figure 16 is compared.

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

Figure 24 is the vertical view of coil for the shake correction shown in Figure 23.

Figure 25 is the vertical view of coil for the shake correction shown in Figure 23.

Figure 26 is for the figure of the magnetic line of force that the shake correction shown in Figure 23 produces with magnet is described.

Figure 27 is for the figure of the direction of the electromagnetic force producing with coil power supply by the shake correction to shown in Figure 23 is described.

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

Figure 29 is the stereographic map of the related optical unit with 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 means the stereographic map of a part of inscape in the F-F cross section of Figure 29.

Figure 32 is for the figure of the effect of the optical unit with debugging functions shown in Figure 29 is described.

(symbol description)

1 movable module

1a lens driving module

9 covers (magnet holding member)

23 shake correction coils

23a long leg (first side portion)

23b long leg (Second Edge portion)

23c, 23d short leg

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

30 first areas

31 second areas

45 supporters

46 swing driving mechanisms (part for a part for shake correction mechanism, hand shake correction mechanism)

51 optical units with shake correcting function

55 supporters

56 swing driving mechanisms (part for a part for shake correction mechanism, hand shake correction mechanism)

59 covers (magnet holding member)

67 leaf springs (part for a part for shake correction mechanism, hand shake correction mechanism)

69 oscillation centres

71,72 shake correction magnets

73,74 shake correction coils

73a, 74a long leg (first side portion)

73b, 74b long leg (Second Edge portion)

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

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

80,85 first areas

100,101 optical units with shake correcting function

117 leaf springs (part for a part for shake correction mechanism, hand shake correction mechanism)

119 fulcrum (part for a part for oscillation centre, shake correction mechanism, hand shake correction mechanism)

160 module lid

170,171,172 hand shaking detection sensors

180 sender unit caps

200 optical units with 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 coil)

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

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

250y second-hand shakes to revise and uses 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 correction magnets

400 supporting mechanisms

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

CL2 the second magnet Pian center (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 (first side Bu center)

The center of CL5 long leg (Second Edge Bu center)

L optical axis

Embodiment

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

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

Fig. 1 means the key diagram of applying the optical unit integral body with shake correcting function of the present invention, and Fig. 1 (a), (b), (c) are to be respectively that stereographic map and the expression that rear side is observed will be installed in the key diagram of the state the optical devices such as mobile phone with the optical unit of shake correcting function from the stereographic map of the side that is taken (front side) observation application optical unit with shake correcting function of the present invention, from a side contrary with subject.

The optical unit 200 with shake correcting function shown in Fig. 1 (a), (b) (with the optical unit of hand shake correcting function) is the thin camera using in the mobile phone with camera, and integral body is roughly rectangular shape.In the present embodiment, optical unit 200 with 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 form the part of fixed body 210.In fixed body 210, the anterior end (subject side end) of fixed cap 260 sometimes also fixedly tripper, various light filters are switched to the accessory module of light filter driving mechanism and the built in light loop mechanism of the state occurring or the state disappearing from optical axis on optical axis.

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

In the inner side of fixed cap 260, dispose the built-in movable module 1 of focusing that lens are used, and as hereinafter described, formed and made movable module 1 swing carry out the hand shake correction mechanism that hand shake is revised.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 inner side of the module lid 160 of angle tubular.

(structure of lens driving module)

Fig. 2 is the key diagram at the lens driving module 1a of the movable module 1 interior formation of the application optical unit 200 with shake correcting function of the present invention, and Fig. 2 (a), Fig. 2 (b) observe outside drawing and the exploded perspective view of lens driving module 1a from oblique upper.Fig. 3 is the key diagram that schematically illustrates the action of the lens driving module 1a shown in Fig. 2.The figure when left-half of Fig. 3 is moving body 3 position that is positioned at infinity (camera site conventionally), the right half part of Fig. 3 is, 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 is for making lens along the direction of optical axis L towards approaching the A direction (front side) of subject (object side) and moving towards B direction (rear side) both direction that approaches a side contrary with subject (imaging apparatus side/as side), and lens driving module 1a is roughly rectangular shape.Lens driving module 1a roughly has: by three lens 121 and fixed aperture remain on inner side 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: keep the lens keeper 12 cylindraceous of lens 121 and fixed aperture and keep lens described later to drive with the lens of coil 30s, 30t by circumferential lateral surface driving with coil keeper 13.

Supporter 2 comprises: the imaging apparatus keeper 19 of the rectangular plate-like of a side positioning shooting element 15 contrary 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-like of housing 18 inner sides, in the central authorities of housing 18 and dividing plate 11, be formed with respectively for the light from subject being introduced to the circular window 18a, 110 that injects of lens 121.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, in the lower face side of substrate 154, is connected with the flexible base, board 300 shown in Fig. 1.

In the present embodiment, housing 18 is formed by ferromagnetism plates such as steel plates, also as yoke, works.Therefore, housing 18 and lens described later drive with forming together with magnet 17 and make to be driven with the lens that coil keeper 13 keeps and drive the interlinkage magnetic field generating body 4 that produces interlinkage magnetic field with coil 30s, 30t by lens, this interlinkage magnetic field generating body 4 be wound on lens and drive with the lens driving on the outer peripheral face of coil keeper 13 form lens actuating device 5 together with coil 30s, 30t.

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 the circular inner circumferential 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 inner circumferential side linking part 14b.In spring members 14s, 14t, the outer circumferential side linking part 14a of the spring members 14s of imaging apparatus side is kept by imaging apparatus keeper 19, and the lens of inner circumferential side linking part 14b and moving body 3 drive with the imaging apparatus side end face of coil keeper 13 and link.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 inner circumferential side linking part 14b and moving body 3 drive with the subject side end face of coil keeper 13 and link.Like this, moving body 3 is supported to and can be moved 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, by the thin plate of specific thickness being carried out to punch process or using the etching and processing of photolithography technology to form.In spring members 14s, 14t, spring members 14s is divided into two and becomes spring leaf 14e, 14f, and lens drive with each end of coil 30s, 30t and are connected with spring leaf 14e, 14f respectively.In addition, in spring members 14s, be formed with respectively terminal 14d on spring leaf 14e, 14f, spring members 14s (spring leaf 14e, 14f) also drives and works with the power supply part that coil 30s, 30t use as lens.

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

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

Moving body 3 comprises: the lens that are wound with coil (lens drive with coil 30s, 30t) in the lens keeper 12 cylindraceous of maintenance lens 121 grades and circumferential lateral surface drive with coil keeper 13, and lens keeper 12 and lens driving have formed 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 12a of small diameter cylinder portion that diameter is less than the 12b of large diameter cylinder portion.Lens drive with coil keeper 13 and comprise for lens keeper 12 being remained on to the circular lens keeper reception hole 130 of inner side.

In present embodiment, when the direction from optical axis L is observed lens driving with coil keeper 13, it is circular that lens drive by interior all shapes of coil keeper 13, but it is quadrilaterals that regulation lens drive by the circumferential lateral surface 131 of the peripheral shape of coil keeper 13, everybody who is equivalent to tetragonal four edges, is set up and comprises four faces 132.At these lens, drive in the circumferential lateral surface 131 with coil keeper 13, at the both ends of the direction of optical axis L and middle position around all- round rib 131a, 131b, the 131c of being formed with, 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 winder 132a, is formed at the rib 131c of subject side end and the recess that is formed between the rib 131b of middle position is the second 132b of coil winding portion.

At lens, drive with in coil keeper 13, the form that on each face in four faces 132, the first coil winder 132a and the second 132b of coil winding portion is formed with respectively to avoid tetragonal corner portions located is removed and the through hole (through hole 133a, 133b) of the rectangle that forms, and this through hole 133a, 133b run through lens and drive the side walls with coil keeper 13 in inward-outward direction.Like this, in present embodiment, lens drive with through hole 133a, the 133b of coil keeper 13 and formed the cavern part inwards caving in the circumferential lateral surface 131 of moving body 3.But, in week, make progress, 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, at lens, drive by the corner portions located of coil keeper 13 and with identical thickness, be formed with the leg portion 134 of the heavy wall extending along the direction of optical axis L.

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

The lens that form like this drive the inner side that is configured in housing 18 with coil keeper 13.Consequently, lens drive with four limit portions of coil 30s, 30t and drive use magnet 17 relative with the lens that are fixed on the inside surface of angle tubular body 18c of housing 18 respectively.

(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), when under such state, to lens, driving passes to the electric current of prescribed direction with coil 30s, 30t, lens drive the electromagnetic force that is subject to respectively upward (front side) 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.Now, between spring members 14t and the front end of moving body 3 and between spring members 14s and the rear end of moving body 3, producing the elastic force that moving-limiting body 3 moves.Therefore, wanting to make moving body 3 forward when the electromagnetic force of side shifting and Spring balanced that moving-limiting body 3 moves, moving body 3 stops.Now, by act on the elastic force adjustment of moving body 3 lens of flowing through according to spring members 14s, 14t, drive the magnitude of current with coil 30s, 30t, can make moving body 3 stop in the position of expectation.

In addition, in lens driving module 1a, lens 121 are rounded, but irrelevant with this lens shape, lens drive and are quadrilateral with coil 30s, 30t, it is tabular permanent magnets with magnet 17 that lens drive, and it is fixed in respectively on a plurality of inside surfaces on the limit that is equivalent to angle tubular body 18c that inner peripheral surface in supporter 2 forms tetragonal housing 18.Therefore, between moving body 3 and supporter 2, even there is no enough spaces at the outer circumferential side of moving body 3, because lens drive with coil 30s, 30t and lens, drive and use the relative area of 17 of magnets wider, therefore also can bring into play enough thrust.

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

As shown in Fig. 1 (c), the optical unit 200 with shake correcting function of present embodiment is installed on the equipment such as mobile phone 500, for taking.When this equipment 500 is taken, Z axis is roughly the level of state.Therefore, the hand shake owing to pressing shutter, may produce the longitudinal judder around X-axis, and produces the transverse judder around Y-axis.Therefore, in present embodiment, added the hand shake correction mechanism describing below with reference to Fig. 4～Figure 14.In this hand shake correction mechanism, in movable module 1, hand shaking detection sensor is set, and utilizes hand shake correction to make to be configured to swing around X-axis and the movable module swinging around Y-axis 1 with respect to fixed body 210 with magnetic driving mechanism.

In present embodiment, each structure of the shake correction mechanism forming is described by the order shown in below in the optical unit 200 with shake correcting function.

One-piece construction with 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 use ... Fig. 4, Fig. 5, Figure 11 and Figure 12

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

Fig. 4 means the key diagram of the cross section structure of applying the optical unit 200 with shake correcting function of the present invention, and Fig. 4 (a), (b) are respectively the longitudinal section when optical unit with shake correcting function 200 is dissectd in the position that is equivalent to the Y1-Y1 ' line of Fig. 1 (a) and the longitudinal section while dissecing in the position that is equivalent to the X1-X1 ' line of Fig. 1 (a).Fig. 5 means the key diagram of the cross section structure while dissecing in the position different from Fig. 4 by the application optical unit 200 with shake correcting function of the present invention, and Fig. 5 (a), (b) are respectively the longitudinal section when optical unit with shake correcting function 200 is dissectd in the position that is equivalent to the C1-C1 ' line of Fig. 1 (a) and the longitudinal section while dissecing in the position that is equivalent to the C2-C2 ' line of Fig. 1 (a).Fig. 6 and Fig. 7 observe the exploded perspective view of the application optical unit 200 with shake correcting function of the present invention and the exploded perspective view of observing from rear side from front side.Fig. 8 applies the movable module 1 of the optical unit 200 with 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), (b) observe the stereographic map of movable module 1 and the parts that are connected with this movable module 1 and the stereographic map of observing from rear side from front side.

In present embodiment, as shown in Figure 4 to 7, fixed body 210 have from rear side (downside) towards front side (upside) by base 220, rear side limiting component 270, front side limiting component 290 and fixed cap 260 successively overlapping and fixing structure.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 of the optical unit 200 with shake correcting function, and plays the function that keeps hand shake magnet 240x, 240y for correction.

Between base 220 and movable module 1, dispose the flexible base, board 300 shown in Fig. 4～Fig. 8 and spring members 280 (force application part), this flexible base, board 300 is connected with movable module 1 with spring members 280.Flexible base, board 300 plays shaking detection sensor 170 and shakes and revise coil and the outside function being electrically connected to of using with magnetic driving mechanism, and spring members 280 plays the function towards base 220 application of forces by movable module 1.In addition, flexible base, board 300 also plays the lens of imaging apparatus 15 and lens actuating device 5 is driven by coil 30s, 30t and the outside function being electrically connected to.

(the movable detailed structure of module 1 and the configuration of hand shaking detection sensor 170)

Fig. 9 and Figure 10 observe the exploded perspective view of the application movable module 1 of using with the optical unit 200 of shake correcting function of the present invention and flexible base, board 300 and the exploded perspective view of observing from rear side from front side.

As shown in Fig. 4～Figure 10, movable module 1 comprises the module lid 160 that lens driving module 1a is held in to inner side.That is, in the inner side of module lid 160, embed the housing 18 that has Fig. 2, the housing 18 of module lid 160 and Fig. 2 forms one.Therefore, module lid 160 and housing 18 form one, the supporter that module lid 160 is used also referred to as lens driving module 1a.Rectangular shaped when module lid 160 is observed from Z-direction, extends 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 to cover the form of this opening and the rearward end of module lid 160.In order to carry out this link, in present embodiment, rearward end in module lid 160 comprises the bend 169 stretching out towards outside, and this bend 169 is included in the face intersecting with Z axis the module lid side flange portion 168 that (being in the face with Z axis quadrature in present embodiment) significantly stretches out towards outside in its four corner portions located.

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

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

In sender unit cap 180, in four side plates 182, in Y direction, the front-end edge of relative side plate 182 is 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 the gap in Y direction upper shed.Therefore, a part for flexible base, board 300 can be configured between sender unit cap 180 and lens driving module 1a, and can the lead division of flexible base, board 300 350 be drawn from movable module 1 from a side of Y direction.

Flexible base, board 300 is the sheet material of the essentially rectangular shape of extending along Y direction in three position < dogleg section 301,302 of length direction, 303> bending and the shape forming.Therefore, flexible base, board 300 comprises: the extension 350 of drawing towards outside, the first plate part 310 being connected with extension 350, the second plate part 320 being connected with the first plate part 310 by dogleg section 301, the 3rd plate part 330 being connected with the second plate part 320 by dogleg section 302, Siping City's plate portion 340 being connected with the 3rd plate part 330 by dogleg section 303, the first plate part 310, the second plate part 320, the 3rd plate part 330 He Siping City plate portions 340 are the shape stacking successively towards 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 U word shape.

In this flexible base, board 300, the first plate part 310 and the second plate part 320 are configured in the rear side (downside) of sender unit cap 180, and the 3rd plate part 330 He Siping City plate portions 340 are configured between sender unit cap 180 and 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 outside from movable module 1.

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

In addition, on the upper surface of the 3rd plate part 330, the double sticky tape 370 by flexibility is fixed with the sheet metal 380 that strengthens use.Under this state, the lower face side of hand shaking detection sensor 170 is shielded by sender unit cap 180, and the upper surface side of hand shaking detection sensor 170 is shielded by sheet metal 380.In addition, sheet metal 380 is present between hand shaking detection sensor 170 and 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 illustrating with reference to Fig. 2 is electrically connected to by substrate 154 (double-sided substrate), and lens drive and also by spring leaf 14e, 14f, are electrically connected to coil 30s, 30t.In the present embodiment, hand shaking detection sensor 170 is gyrosensors (angular-rate sensor) of surface installing type, to diaxon, the angular velocity that comparatively it is desirable to the diaxon of quadrature detects.

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

In addition, in the first plate part 310, dogleg section 301, the second plate part 320 and dogleg section 302, middle body at Width is formed with the slit 300a extending along Y direction, and this slit 300a extends to dogleg section 302 continuously from the hole 310a being formed on the first plate part 310.Therefore, flexible base, board 300 is because being formed with correspondingly also easily distortion on Width (X-direction) of slit 300a and hole 310a, 320a.In addition, in X-direction, the configuration of flexible base, board 300 is symmetrical, 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, can make movable module 1 suitably swing, thereby can carry out reliably hand shake, revise.And, in flexible base, board 300, at the extension of drawing from movable module 1, be provided with the dogleg section 301,302 along Y direction, therefore, make movable module 1 when X-axis swings, recovery of shape power during flexible base, board 300 distortion is not easy the swing of movable module 1 to impact.

(structure of supporting mechanism 400)

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

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

In the relative base 220 configuring of rear side of sender unit cap 180, from the outer peripheral edges of the base plate 221 of rectangle, towards front side, erect and be formed with four side plates 222, one in Y direction in relative side plate 222 is formed with for drawing the breach 222a with reference to the flexible base, board 300 of Fig. 9 and Figure 10 explanation.In base 220, at the middle body of base plate 221, be formed with (upside) outstanding supporting projections that has round-ended cylinder shape 227 towards front side, on the front end face of supporting projections 227, be formed with hemispheric kick 227a.Therefore, as shown in Figure 12 (a), in the front side of base 220 (upside), sensors configured is covered 180 o'clock, as 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 present embodiment, between the base 220 of fixed body 210 and the sender unit cap 180 of movable module 1, the bottom lower surface 187a of recess 187 and the kick 227a of supporting projections 227 have formed ，Gai hinge portion, hinge portion and have formed the supporting mechanism 400 that movable module 1 can be swung with respect to fixed body 210.In the present embodiment, at the rear side of hand shaking detection sensor 170, supporting mechanism 400 is disposed at and hand shaking detection sensor 170 overlapping position in Z-direction.

Referring again to Figure 11, base 220 is punch process product of sheet metal, when from front side, (upside) observed, outer regions 221a in base plate 221 and being formed with between the middle section 221b of supporting projections 227 is formed with towards the recess 226 of rear side depression, and this recess 226 forms to surround the form of three sides of the middle section 221b that is formed with supporting projections 227.In addition, in the base plate 221 of base 220, in middle section 221b, to surround the form of three sides in the region that is formed with supporting projections 227, be formed with slit 228, by this slit 228, 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 is out of shape in Z-direction, supporting mechanism 400 integral body are along Z-direction displacement.

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

(structure of spring members 280)

Between the sender unit cap 180 of movable module 1 and base 220, dispose the spring members 280 towards base 220 application of forces by movable module 1, these spring members 280 generations make the acting force of the direction of the bottom lower surface 187a of recess 187 and the kick 227a butt of supporting projections 227.Spring members 280 is leaf springs of overlooking rectangular shaped, is by the 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, four corner portions located, be formed with the fixedly side linking part 281 linking with fixed body 210.In the present embodiment, fixedly side linking part 281 is fixed on the rear side limiting component 270 shown in Fig. 4～Fig. 7 in a plurality of parts that form fixed body 210.In present embodiment, on the fixedly side of spring members 280 linking part 281, be formed with aperture 281a, 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 kick 277a of rear side limiting component 270 is embedded spring members 280 aperture 281a and will spring members 280 and rear side limiting component 270 location after carry out bonding or riveted joint etc., fixing side linking part 281 can be linked with fixed body 210.

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

Spring members 280 is universal reed shape, the movable module side linking part 282 that comprises two ends and central authorities and four fixing narrow arms 283 of four of 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., at spring members 280, be installed under the state with the optical unit 200 of 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 by movable module 1 the direction application of force 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 equal angles arranged spaced.Therefore, four arms 283 are all Rotational Symmetry with 90 degree, 180 degree, 270 degree.In addition, spring members 280 comprises the movable module side linking part 282 being formed by the wider plate part of area, and is connected with sender unit cap 180 with wider area by this movable module side linking part 282.Therefore, spring members 280 produces the acting force of the direction that makes the bottom lower surface 187a of recess 187 and the kick 227a butt of supporting projections 227, and when movable module 1 is not subject to external force, the optical axis L of movable module is held in to the posture parallel with Z axis.

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

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

(structure with magnetic driving mechanism is revised in shake)

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

First, in fixed body 210, in Y direction, on the inside surface of two of fixed cap 260 respect to one another side plates 262, keeping forming first-hand shake correction and revising with magnet 240x (first-hand shake correction magnet) with the hand shake of the rectangular plate-like of magnetic driving mechanism 250x, in X-direction, on the inside surface of two other side plate 262 of fixed cap 260 respect to one another, keeping forming second-hand and shaking to revise with the hand of the rectangular plate-like of magnetic driving mechanism 250y and shake correction with magnet 240y (second-hand shakes correction magnet).Herein, hand shake is revised with magnet 240x, 240y and is formed by the tabular permanent magnet of rectangle.In the present embodiment, hand shake is revised and is consisted of two tabular permanent magnets arranging in Z-direction with magnet 240x, 240y, and in these tabular permanent magnets, outside surface side and inner surface side are magnetized to the different utmost points.In addition, in two tabular permanent magnets arranging in Z-direction, direction of magnetization is contrary.As for hand shake, revise with magnet 240x, 240y, 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, in Y direction, on the outside surface of two of module lid 160 respect to one another side plates 162, be adhesively fixed with and form first-hand shake correction and revise with coil 230x (first-hand shake correction coil) with the hand shake of magnetic driving mechanism 250x, in X-direction, on the outside surface of two other side plate 162 of module lid 160 respect to one another, be adhesively fixed with and form second-hand and shake to revise with the hand of magnetic driving mechanism 250y and shake correction with coil 230y (second-hand shakes correction coil).Above-mentioned hand shake is revised and is revised with magnet 240x, 240y relative with hand shake respectively with coil 230x, 230y.In addition, hand shake is revised and is revised relative with two tabular permanent magnets arranging in Z-direction of magnet 240x, 240y with hand shake respectively with two effective edge portions along Z-direction of coil 230x, 230y.Herein, the lens of each end of hand shake coil 230x, 230y for correction and hand shaking detection sensor 170, imaging apparatus 15, lens actuating device 5 drive with coil 30s, 30t same, by flexible base, board 300, are electrically connected to outside.On the side plate 262 of fixed cap 260, be formed with less peristome 262a, this peristome 262a for strengthening the coating etc. of the bonding agent of use after hand shake correction is fixed on to side plate 262 with magnet 240x, 240y.

Like this, in present embodiment, formed forming a pair of and making movable module 1 around the magnetic driving mechanism 250x for first-hand shake correction of X-axis swing across two relative positions of supporting mechanism 400 in Y direction, in first-hand shake correction, with in magnetic driving mechanism 250x, two hand shakes are revised and with coil 230x, by distribution, are connected into the magnetic driving force towards same direction when switching on, movable module 1 being produced around X-axis.Therefore,, when revising with coil 230x energising to two hand shakes, two first-hand shake corrections apply the moment towards same direction around the X-axis through supporting mechanism 400 with magnetic driving mechanism 250x to movable module 1.In addition, in present embodiment, formed forming a pair of and making movable module 1 shake magnetic driving mechanism 250y for correction around the second-hand of Y-axis swing across two relative positions of supporting mechanism 400 in X-direction, second-hand, shake and revise with in magnetic driving mechanism 250y, two hand shakes are revised and with coil 230y, by distribution, are connected into the magnetic driving force towards same direction when switching on, movable module 1 being produced around Y-axis.Therefore,, when revising with coil 230y energising to two hand shakes, two second-hands shake to revise with magnetic driving mechanism 250y movable module 1 are applied to the moment towards same direction around the Y-axis through supporting mechanism 400.

In the present embodiment, fixed cap 260 is formed by magnetic, and works with the yoke that magnet 240x, 240y use as hand shake correction.

Be equiped with in the mobile phone with camera of the optical unit 200 with shake correcting function of such formation, the hand shaking detection sensors 170 such as gyrosensor that hand shake while being used for shooting detects are installed in movable module 1, according to the testing result of this hand shaking detection sensor 170, be installed in to shake to revise with coil 230x and hand shake correction with the control part opponent on the mobile phone of camera and switch on by one or both in coil 230y, make movable module 1 around X-axis and one or both swing in Y-axis.If this is swung and is synthesized, can make movable module 1 with respect to XY face Integral swinging.Therefore, contingent all hands shake such as the mobile phone of correction tape camera reliably.

In order to carry out above-mentioned hand shake, revise, in present embodiment, hand shaking detection sensor 170 is installed in to movable module 1 own, 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 be zero by hand shaking detection sensor 170 detected angular velocity.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 shaking detection sensor 170 detected angular velocity, be that angle correcting is zero.

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

In addition, centered by the supporting mechanism 400 due to the rear side formation by movable module 1, make movable module 1 swing, so the distortion of flexible base, board 300 is minimum.Therefore, recovery of shape power during flexible base, board 300 distortion is little, can make movable module 1 promptly swing.

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

On the other hand, using 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 approaches the Z-direction center of movable module 1 in Z-direction, can make with minimum displacement movable module 1 significantly swing, therefore, have advantages of that the response that hand shake revises is good.

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

Figure 13 is the key diagram of applying the parts of the movable range with the movable module 1 of restriction in the optical unit 200 of shake correcting function of the present invention, and Figure 13 (a), (b), (c), (d) observe the exploded perspective view that configures the stereographic map of the state after rear side limiting component 270 and front side limiting component 290, the stereographic map of observing from rear side, the exploded perspective view of observing from front side and observe from rear side in movable module 1 from front side.Figure 14 is the key diagram of applying the mechanism of the movable range with the movable module 1 of restriction in the optical unit 200 of shake correcting function of the present invention, Figure 14 (a), (b), (c) be respectively from front side, observe the application optical unit with shake correcting function of the present invention movable module configure the state after rear side limiting component vertical view, through in Fig. 1 (a) with near the Y2-Y2 ' cut-open view corner of the optical unit 200 of shake correcting function and through in Fig. 1 (a) with near the X2-X2 ' cut-open view corner of the optical unit 200 of shake correcting function.

As shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Figure 13, in the present embodiment, surrounding in movable module 1 disposes 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 the both direction of movable module 1 in X-direction, the both direction in Y direction, the both direction in Z-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 axis.

First, as shown in Figure 14 (a), (b), (c), while observing from front side, rear side limiting component 270 comprises respectively inwall 272a and inwall 272b four corner portions located, it is relative that the teat 108 that inwall 272a and corner portions located in movable module 1 are stretched out along X-direction and Y direction separates 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, the both direction of movable module 1 in X-direction and the both direction in 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 axis.

Then,, as shown in Figure 14 (b), (c), rear side limiting component 270 comprises 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 both direction of movable module 1 in Z-direction is limited.

Herein, front side limiting component 290 and rear side limiting component 270 are resinous, different during from metal-made, have impact absorbency and absorption of vibrations.Therefore, even if 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 supporting mechanism 400 shown in Fig. 4, Fig. 5 and Figure 12, the supporting projections 227 of base 220 embeds in the recess 187 of sender unit cap 180, in present embodiment, this supporting mechanism 400 has also limited the both direction of movable module 1 in X-direction and the movable range of the both direction in Y direction.That is, as shown in Figure 4, between the outer peripheral face of supporting projections 227 and the inner peripheral surface of recess 187, in X-direction overhead, open minimum clearance G X2, in Y direction overhead, open minimum clearance G Y2.

In addition, in the supporting mechanism 400 shown in Fig. 4, Fig. 5 and 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 has also limited the movement towards Z-direction rear side of movable module 1.Herein, from movable module 1 because of the sharply displacement of rear side towards Z-direction such as the impact of dropping etc., till the teat 108 of movable module 1 and plate-like portion 274 butts of 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 forming on base 220, therefore, when movable module 1 is indexed to the rear side of Z-direction, supporting mechanism 400 integral body are along Z-direction displacement.Therefore,, during the impact that is subject 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, as shown in Fig. 4 (a), (b), plate spring part 229 is positioned at the given size G10 place of front side with respect to the rear surface of base 220 and the end edge of fixed cap 260.Therefore, though movable module 1 because of the sharply displacement of rear side towards Z-direction such as the impact of dropping etc., plate spring part 229 is towards 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 200 with shake correcting function of present embodiment, in order to revise the shake that is dithered as representative with the hand of movable module 1, utilized magnetic driving mechanism, therefore the shake that, can carry out movable module 1 in the situation that need not being mechanically connected and fixed body 210 and movable module 1 by driving mechanism is revised.Therefore, easy with the assembling of the optical unit 200 of shake correcting function, and resistance to vibration is good.

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

Therefore, for configuring first-hand shake correction from a side in supporting projections 227, the structure of magnetic driving mechanism 250x, a side configuration second-hand in supporting projections 227 shake to revise and use the structure of magnetic driving mechanism 250y different, driving force is stable, thereby can revise accurately hand shake.For example, two first-hand shake corrections are with in magnetic driving mechanism 250x, form first-hand shake correction with the hand shake of magnetic driving mechanism 250x revise with magnet 240x and hand shake correction with the position relationship of coil 230x a first-hand shake correction when being partial to the direction that magnetic driving force diminishes in magnetic driving mechanism 250x, in another first-hand shake correction, with being partial to first-hand shake correction of correction in magnetic driving mechanism 250x, with the hand shake of magnetic driving mechanism 250x, revising and use magnet 240x and hand to shake the direction of revising with the dislocation of coil 230x, be that magnetic driving force becomes large direction, therefore, first-hand shake correction is stable by the driving force of magnetic driving mechanism 250x.This effect is shaken and is revised with magnetic driving mechanism 250y too for second-hand.

In addition, in above-mentioned embodiment, in first-hand shake correction, with magnetic driving mechanism 250x and second-hand, shake and revise in any that use magnetic driving mechanism 250y, all 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, at the fixed body 210 sides maintenances magnet (hand shake revise with magnet 240x, 240y) heavier than coil.Therefore, can be with less torque actuated movable module 1, and the response of revising is good.

In addition, when movable module 1 side configuration coil (hand shake is revised with coil 230x, 230y), coil need to be electrically connected to outside, but in present embodiment, hand shake is revised with coil 230x, each end of 230y and the lens of hand shaking detection sensor 170, imaging apparatus 15, lens actuating device 5 and is driven with coil 30s, 30t and by flexible base, board 300, be electrically connected to outside equally.Therefore, in present embodiment, by sharing flexible wiring substrate 300, simplified structure correspondingly, and can reduce costs.

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

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

[other embodiment]

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

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

In above-mentioned embodiment, as hand, shake is revised and is used magnetic driving mechanism, movable module 1 is provided with to first-hand shake correction shakes and revises with magnetic driving mechanism 250y with magnetic driving mechanism 250x and second-hand, but also can be like this: apply the present invention to only to arrange first-hand shake correction and shake and revise the shake that easily produces the direction that hand shakes while using only to revise user with the structure of in magnetic driving mechanism 250y with magnetic driving mechanism 250x and second-hand, in the both sides of supporting projections 227, only arrange take two with magnetic driving mechanism 250x or second-hand, shake and revise with magnetic driving mechanism 250y as a pair of first-hand shake correction.In this case, adopt the structure that direction is defined in Y direction of drawing of flexible base, board 300.

(structure of force application part)

In above-mentioned embodiment, as force application part, used the spring members 280 comprising 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 also can adopt arm 287 limit curved edges to extend.

In above-mentioned embodiment, as for the force application part towards base 220 application of forces by movable module 1, only used spring members 280, but as this force application part, also can use by magneticaction by movable module 1 towards the magnetic spring of base 220 application of forces, by mechanism by movable module 1 spring members towards base 220 application of forces.In addition, as magnetic spring, adopt the hand shake on fixed body 210 to revise the structure with the rear side configuration magnetic of magnet 240x, 240y.While forming like this, can maintain reliably the state that movable module 1 supported body 400 supports.In addition, stop the neutrality of driving with magnetic driving mechanism hand shake correction during, utilize magnetic spring by movable module 1 towards base 220 application of forces, as for spring members 280, can make it in not producing the non-deformation state of acting force.If form like this,, when movable module 1 swings, spring members 280 is out of shape, and power plays a role.That is,, during movable module 1 is non-oscillatory, spring members 280 keeps even shape.Therefore, the deflection that can effectively utilize power that spring members 280 is subject to and spring members 280 has the part of the linearity, therefore, can make movable module 1 suitably swing, and can carry out reliably hand shake and revise.

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

(structure of swinging support portion)

In the above-described embodiment, at the front end of supporting projections 227, be formed with kick 227a, but also can supporting projections 227 integral body formed hemispherical.In addition, in 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, movable module 1 is supported to can swing centered by a side contrary with the side that is taken time, replacement as hinge portion, the many hoist cables that also side from contrary with the side that is taken can be extended towards the side that is taken use as swinging support portion, and utilize these many hoist cables that movable module 1 is supported to and can be swung.

(other structure)

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

In addition, in above-mentioned embodiment, used hand shake is revised with the lens of coil 230x, 230y, hand shaking detection sensor 170, imaging apparatus 15, lens actuating device 5 and driven the flexible wiring substrate 300 all sharing with coil 30s, 30t, but will all not share by all parts, according to wiring condition, also can adopt the flexible wiring substrate that the appropriately combined ground of parts is used or shared separately.

In above-mentioned embodiment, what illustrate is the example that applies the present invention to the optical unit 200 with shake correcting function that the mobile phone with camera uses, but the example that applies the present invention to the optical unit 200 with shake correcting function that slim digital camera etc. uses also can be described.In addition, in above-mentioned embodiment, illustrate be in movable module 1 except lens 121 and imaging apparatus 15 also supporter 2 upper supports have direction along optical axis L in magnetic mode to comprising the example of the lens actuating device 5 that the moving body 3 of lens 121 drives, but also can apply the present invention to the optical unit with 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, and also can be applicable to laser pen, carries 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 less torque actuated movable module 1, improve the response of revising, the coil that has represented to keep lighter than magnet on movable side, on fixing side, keep than the example of the magnet of coil weight, but the energy miniaturization the following describes, the present invention of slimming are applicable to the position relationship 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 100 with shake correcting function 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 the hand shake shown in Figure 16.Figure 18 is for the figure of the magnetic line of force that the hand shake correction shown in Figure 16 produces with magnet 21 is described.Figure 19 is the figure that revises the direction of the electromagnetic force producing with coil 23 power supplies by the hand shake to shown in Figure 16 for illustrating.

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

The optical unit 100 with shake correcting function of present embodiment is the small-sized and slim camera being installed on the portable sets such as mobile phone, and integral body forms roughly rectangular-shaped.As shown in Figure 15, Figure 16, should comprise with optical unit 100 of shake correcting function: the lens driving module 201, the sensor 171 for the variation of the inclination of lens driving module 201 is detected, the supporter 45 of support of lens driver module 201, the swing driving mechanism 46 that lens driving module 201 is swung that are equiped with not shown lens and imaging apparatus.

The same with above-mentioned embodiment, on lens driving module 201, be equiped with lens and imaging apparatus.Particularly, in the upper end side of lens driving module 201, be equiped with lens, in the lower end of lens driving module 201, as illustrating in above-mentioned embodiment, be equiped with imaging apparatus.In addition, on lens driving module 201, be equiped with for drive the lens actuating device of lens along optical axis direction.Lens driving module 201 can adopt the structure identical 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 side tegmentum parts 9 of the front and back of this lens driving module 201 and left and right 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, with magnetic material, forms.In addition, cover 9 use metal materials form.In the bottom that is disposed at the cover 9 of upper end side, be formed with circular through hole 9a.In addition, in the lower end of cover 9, be formed with towards the 9b of eaves portion of the outside of fore-and-aft direction and the expansion of the outside of left and right directions.The front and back of cover 9 and the side of left and right form and optical axis direction almost parallel, are fixed with respectively the aftermentioned hand shake correction magnet 21 that forms swing driving mechanism 46 on these sides.

Sensor 171 is the gyroscopes for the variation of the inclination of lens driving module 201 is detected.That is, sensor 171 is the angular-rate sensors for the angular velocity of lens driving module 201 is detected.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 is also connected with the imaging apparatus being installed on optical unit 100.FPC10 the lower end side of optical unit 100 drawn around, for example from the left surface of optical unit 100, drawn.

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 end of with, and forms flat roughly quadrangular barrel shape.At the center of bottom that is disposed at the sender unit cap parts 111 of lower end side, be formed with the bearing surface 111a with fulcrum projection 115b butt, 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 fore-and-aft direction and the outside of left and right directions and expands.In present embodiment, the 9b of eaves portion and the 111b of eaves portion are fixed to each other.That is, sender unit cap parts 111 are fixed on the lower end of cover 9.

In 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 present embodiment, lens driving module 201, sensor 171, cover 9 and sender unit cap parts 11 have formed the movable module 202 that can swing with respect to supporter 45.

Supporter 45 comprises: the shell 116 (being equivalent to above-mentioned fixed cap 260) that forms base body 115, the formation front and back of optical unit 100 and the outer peripheral face of left and right of the lower surface of optical unit 100.On shell 116, be fixed with for limiting the limiting component 118 of the hunting range of 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 upward side-prominent teat 115a.In addition, the upper surface at teat 115a is formed with the fulcrum projection 115b as the swing fulcrum of movable module 202.That is,, in present embodiment, at the downside of movable module 202, dispose the fulcrum of the swing 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 present embodiment, fulcrum projection 115b and bearing surface 111a have formed 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 movable module 202 center.

Shell 116 forms the roughly quadrangular barrel shape of top and bottom opening.The front and back of shell 116 and the side of left and right form and optical axis direction almost parallel.In addition, the lower end side at this shell 116 is fixed wtih base body 115.In addition, in the side of front and back of shell 116 and the approximate centre of the side of left and right, be formed with the peristome 116a that runs through each side, this peristome 116a forms the aftermentioned hand shake of swing driving mechanism 46 and revises the extension line with coil 23 for configuring.This peristome 116a forms essentially rectangular.The shell 116 use nonmagnetic substances of present embodiment form.In addition, shell 116 use metal materials form.

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

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

Swing driving mechanism 46 comprises: hand shake is revised with magnet 21, revised with the hand shake of the relative configuration of magnet 21 and revise with coil 23 with hand shake.The swing driving 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.

Hand shake is revised and is formed the tabular of essentially rectangular with magnet 21.In addition, hand shake is revised and is consisted 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 lower surface of the first magnet sheet 21a and the upper surface butt of the second magnet sheet 21b, the first magnet sheet 21a and the second magnet sheet 21b are adhesively fixed, thereby form hand shake, revise with magnet 21.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 is revised and on the side of the front and back of cover 9 and the side of left and right, is fixed with respectively one with magnet 21.That is, 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, hand shake is revised with magnet 21 and is swung together with lens driving module 201.As mentioned above, cover 9 use magnetic materials form, the function of the rear yoke of magnet 21 for 9 shake corrections in one's hands of cover.The cover 9 of present embodiment is to keep hand shake to revise the magnet holding member with magnet 21.

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

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

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

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

Hand shake is revised with coil 23 and will be comprised that the insulation tunicle of the surrounding that covers wire and the fusion line of the fusion tunicle of the surrounding of covering insulation tunicle are wound into hollow shape and form (that is, not comprising the volume cores such as bobbin) hollow coil.The hand shake of present embodiment is revised and with coil 23, by fusion line, is wound into essentially rectangular and forms.Particularly, hand shake is revised and with coil 23, by fusion line, is wound into roughly rectangle and forms.That is, as shown in figure 17, hand shake is revised with coil 23 by two long leg 23a, 23b parallel to each other and than long leg 23a, 23b, is formed short and parallel to each otherly two short leg 23c, 23d and forms.In addition, to revise with coil 23 are roughly certain pancake coils of thickness for hand shake.

Hand shake is revised the film by insulativity with coil 23 and be fixed with respectively one on the side of the front and back of shell 116 and the side of left and right.That is, 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 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 shell 116.In present embodiment, the long leg 23a that is configured in upside becomes first side portion, and the long leg 23b that is configured in downside becomes Second Edge portion.

As shown in figure 16, the relative configuration of state to open specified gap in left and right directions or fore-and-aft direction overhead with coil 23 revised with magnet 21 and hand shake correction in hand shake.Particularly, hand shake is revised with magnet 21 and hand and is shaken and revise with coil 23 relative configuration of upside in fulcrum 119, and relatively configure with the state that sky is opened specified gap, so that even movable module 202 take fulcrum 119 and swing for fulcrum, hand shake is revised and with magnet 21 and hand, is shaken correction and also can not contact with coil 23.In present embodiment, opponent not, shake while revising with coil 23 power supply, 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 is revised and is magnetized to magnet 21: the magnetic pole forming on the lateral surface of the first magnet sheet 21a of left and right directions (or fore-and-aft direction) is different from the magnetic pole forming on the lateral surface of the second magnet sheet 21b.That is, in hand shake, revise on the opposite face relative with coil 23 with hand shake correction with 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).Therefore, hand shake is revised the magnetic line of force with magnet 21 generations for example to become the arrow shown in Figure 18 such.

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

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

In present embodiment, as shown in Figure 16, Figure 18, hand shake is revised with magnet 21 and is configured to coil 23 is relative with hand shake correction: 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 hand shake.That is, hand shake is revised center C L3 with coil 23 and is disposed at and on optical axis direction, is compared to hand shake and revises the bearing surface 27 of the magnetic force center of using magnet 21 away from the position of 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., the center C L4 of long leg 23a be configured in the first magnet sheet 21a to be formed on hand 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 hand shake correction be the downside of bearing surface 27 with the border of two magnetic poles on the relative opposite face of coil 23, and the center C L5 of long leg 23b be configured in the second magnet sheet 21b to be formed on hand shake correction 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 present embodiment, hand shake is revised with magnet 21 and hand shake and is revised and be 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 to shake by opponent the direction of revising the electromagnetic force F1 producing with coil 23 power supplies in long leg 23a, with centered by fulcrum 119, also the tangential direction of the circle of process long leg 23a is roughly consistent.In addition, can make to shake by opponent the direction of revising the electromagnetic force F2 producing with coil 23 power supplies in long leg 23b, with centered by fulcrum 119, also the tangential direction of the circle of process long leg 23b is roughly consistent.That is, can make to shake to revise with coil 23 power supplies and in hand shake by opponent to revise by the electromagnetic force F1 producing in coil 23, the direction of F2, and produce for making the direction of the oscillatory forces that movable module 202 swings roughly consistent centered by fulcrum 119.In the present embodiment, hand shake is revised and is fixed on shell 116 with coil 23, and therefore, hand shake is revised by magnet 21 sides driven, and movable module 202 swings (rotation) centered by fulcrum 119, and hand shake is revised.

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

In present embodiment, fulcrum 119, swing driving mechanism 46, leaf spring 117 that utilization is formed by bearing surface 111a and fulcrum projection 115b, make lens driving module 201 with respect to supporter 45, swing the shake correction mechanism of revising shake thereby formed according to the testing result of sensor 171.; in present embodiment; utilize fulcrum 119, swing driving mechanism 46, leaf spring 117, thereby formed, according to the testing result of sensor 171, make lens driving module 201 take fulcrum 119 as fulcrum swings, to revise the hand shake correction mechanism of hand shake.

(the main effect of present embodiment)

As mentioned above, in present embodiment, hand shake is revised with magnet 21 and hand shake and is revised with coil 23 relative configuration of upside in the fulcrum 119 of the oscillation centre as lens driving module 201, and is relatively configured to: hand shake is revised center C L3 with coil 23 and is disposed at and on optical axis direction, than hand, shakes correction and use the bearing surface 27 of magnet 21 away from the position of fulcrum 119.Particularly, hand shake is revised with magnet 21 and hand shake and is revised and be 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 hand shake correction be the downside of bearing surface 27 with the border of two magnetic poles on the relative opposite face of coil 23, and the center C L5 of long leg 23b be configured in the second magnet sheet 21b to be formed on hand shake correction 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 present embodiment, hand shake is revised with coil 23 and is configured in direction that hand shake revises the magnetic line of force producing 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 first area 30 of direction of fulcrum 119 (oscillation centre of lens driving module 201) and the direction of the magnetic line of force slightly.More specifically, long leg 23a is configured in first area 30, and long leg 23b is configured in second area 31.

Therefore, as mentioned above, by opponent, shake the direction of revising the electromagnetic force F1, the F2 that produce with coil 23 power supplies and generation for making the direction of oscillatory forces of movable module 202 swings roughly consistent centered by fulcrum 119.Therefore, in present embodiment, can effectively utilize hand shake and revise the magnetic flux producing with magnet 21, thereby improve the driving force of swing driving mechanism 46.Consequently, in present embodiment, even when optical unit 100 miniaturizations with shake correcting function, slimming, also can obtain enough driving forces for lens driving module 201 is swung.

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

In addition, in present embodiment, hand shake is revised center C L3 with coil 23 and is disposed on optical axis direction and revises and use the bearing surface 27 of magnet 21 away from the position of fulcrum 119 than hand shake, therefore, with hand shake revise bearing surface 27 with magnet 21 with hand shake revise when center C L3 with coil 23 is disposed at the equidistant position of leaving from fulcrum 119 on optical axis direction and compare, can lengthen the distance of using coil 23 from fulcrum 119 shake correction in one's hands.Due to for making torque that movable module 202 swings and become pro rata greatly by the distance of coil 23 from fulcrum 119 shake correction in one's hands centered by fulcrum 119, so present embodiment can increase this torque.That is, can improve the driving force of swing driving mechanism 46.

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

For example, hand shake is revised with magnet 21 and hand shake and revised and with coil 23, be configured to hand shake and revise and with the bearing surface 27 of magnet 21, shake correction with hand and use the center C L3 of coil 23 consistent on optical axis direction, and as shown in figure 20, hand shake is revised with coil 23 and is configured in direction that hand shake revises the magnetic line of force producing with magnet 21 in the region of left and right directions roughly (or roughly fore-and-aft direction) time, in the hand shake that obtains power supply, revise electromagnetic force F1, the F2 generation of for example using on coil 23 upward.That is, in this case, the direction of oscillatory forces and the direction of electromagnetic force F1, F2 that produce for making movable module 202 swing centered by fulcrum 119 are inconsistent.Therefore, in this case, cannot effectively utilize hand shake to revise the magnetic flux producing with magnet 21.

(about the driving force of swing driving mechanism)

Figure 21 is for the figure of the condition of the simulation that the driving force of the swing driving mechanism 46 shown in Figure 16 is compared is described.Figure 22 means the curve map of the result of the simulation that the driving force of the swing driving mechanism 46 shown in Figure 16 is compared.

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

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

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

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

In above-mentioned simulation, when distance P 1 is 2mm, distance P 2 for-0.5mm, the torque maximum of swing driving mechanism 46, but revise while revising the change in size with coil 23 etc. with magnet 21 and hand shake in hand shake, best distance P 1, P2 also change.In addition, when the torque that cannot set swing driving mechanism 46 because of restriction of the physical dimension of the optical unit 100 with 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 swing driving mechanism 46 becomes large.

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

In explanation below, the structure identical with above-mentioned embodiment marked identical symbol and omit or simplify its explanation.In addition, in explanation below, also using three orthogonal directions respectively as directions X, Y-direction and Z direction, using X1 direction side as " right side " side, using X2 direction side as " left side " side, using Y1 direction side as " front " side, using Y2 direction side as " afterwards " side, using Z1 direction side as " on " side, using Z2 direction side as D score side.

The optical unit 51 with shake correcting function of present embodiment is the same with the above-mentioned optical unit 100 with shake correcting function, it is the small-sized and slim camera being 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 swing driving mechanism 56 that lens driving module 203 is swung.In present embodiment, the optical axis direction of the optical unit 51 with shake correcting function when above-below direction does not swing with lens driving module 203 is yet consistent.

The side tegmentum parts 59 of the front and back of lens driving module 203 and left and right cover, the top and bottom opening of this cover 59, and form roughly quadrangular barrel shape.Cover 59 use magnetic materials form.The front and back of cover 59 and the side of left and right form and optical axis direction almost parallel, are fixed with respectively the aftermentioned shake correction magnet 71,72 that forms swing driving mechanism 56 on these sides.In the upper end of cover 59, be provided with 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.At cover unit 58 center, be formed with circular through hole 58a.

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 to avoid the form of optical axis L.On sensor 172, be connected with FPC60.On the lower surface of lens driving module 203, and be installed in the connector 57 that imaging apparatus on lens driving module 203 etc. is electrically connected to and be 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, and the lower end side of cover 59 is covered.

In present embodiment, the supported body 55 of lens driving module 203, sensor 172, cover 59, cover unit 58 and lower cover member 61 supports to and can swing.That is,, in present embodiment, lens driving module 203, sensor 172, cover 59, cover unit 58 and lower cover member 61 have formed the movable module 62 that can swing with respect to supporter 55.

Supporter 55 comprises: form with the front and back of optical unit 51 of shake correcting function and the shell 66 of the outer peripheral face of left and right, and revise to forming the aftermentioned shake of swing driving mechanism 56 the coil holding member 64,65 being kept with coil 73,74.On coil holding member 64,65 or shell 66, be fixed with leaf spring 67, 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 the side of left and right form and 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 fixed on the inner peripheral surface of shell 66 with the form overlapping each other on 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 respectively the configuration hole 64a of coil 73 for configuration shake correction described later.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 respectively the configuration hole 65a of coil 74 for configuration shake correction described later.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 supporter 55, at the central part of leaf spring 67, is fixed wtih movable module 62.That is, leaf spring 67 comprises: be fixed on fixed part on supporter 55, keep the maintaining part of movable module 62, the spring portion that fixed part is connected with maintaining part.

In present embodiment, at the central part of leaf spring 67, be fixed wtih the approximate centre position on optical axis direction of cover 59.Particularly, by being fixed on the locational dividing plate 68 of the approximate centre on optical axis direction of cover 59, the approximate centre position on optical axis direction that is fixed wtih 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 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 movable module 62 center.

Swing driving mechanism 56 comprises: on optical axis direction, be configured in oscillation centre 69 upsides magnet 71 for shake correction, on optical axis direction, be configured in the upside of oscillation centre 69 and revise coil 73 shake correction for the relative configuration of magnet 71 with shake, on optical axis direction, be configured in oscillation centre 69 downsides magnet 72 shake correction for, on optical axis direction, be configured in oscillation centre 69 downside and with shake the correction relative coil 74 for shake correction configuring of magnet 72.The swing driving mechanism 56 of present embodiment comprises: four shakes are revised with magnet 71, four shakes and revised with magnet 72, four shakes and revise with coil 73, four shakes and revise with coil 74.

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

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

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

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

For example, the shake correction being 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 being 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 being 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 being 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 being 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 being 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 being 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 being 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, revises with the same hollow coil of coil 23 with shake.That is, shake revise for coil the 73, the 74th, thickness is certain pancake coil roughly.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 two long leg 73a, 73b parallel to each other and than long leg 73a, 73b, is formed short and parallel to each otherly two short leg 73c, 73d and forms.In addition, as shown in figure 25, shake is revised with coil 74 by two long leg 74a, 74b parallel to each other and than long leg 74a, 74b, is formed short and parallel to each otherly two short leg 74c, 74d and forms.

Shake correction is fixed with respectively one with coil 73 on the side of the front and back of coil holding member 64 and the side of left and right.In addition, shake correction is fixed with respectively one with coil 74 on the side of the front and back of coil holding member 65 and the side of left and right.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 coil holding member 64, and shake is revised with coil 74 so that the length direction of short leg 74c, the 74d form consistent with above-below direction is fixed on coil holding member 65.; 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 coil holding member 64, and shake is revised 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 is fixed on coil holding member 65.

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

As shown in figure 23, shake revise with magnet 71 and shake correction with coil 73 relative configuration of state to open specified gap in fore-and-aft direction or left and right directions overhead.Particularly, shake is revised with magnet 71 and is revised with coil 73 relative configuration of upside in oscillation centre 69 with shake, and relatively configure with the state that sky is opened specified gap, even so that movable module 62 swings centered by 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 is revised with coil 74 relative configuration of downside in oscillation centre 69 with shake, and relatively configure with the state that sky is opened specified gap, even so that movable module 62 swings centered by oscillation centre 69, shake is revised with magnet 72 and also can not contacted with coil 74 with shake correction.

In present embodiment, when not revising with coil 73,74 power supply 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 present embodiment, as shown in figure 23, when movable module 62 is positioned at neutral position, be fixed on shake correction on the side of left and right of coil holding member 64 with the medial surface of the left and right directions of coil 73 with the form inclination that opens in the outside of direction to the left and right gradually towards top.Similarly, when movable module 62 is positioned at neutral position, be fixed on shake correction on the side of front and back of coil holding member 64 with the medial surface of the fore-and-aft direction of coil 73 with the form inclination that opens in the outside of direction forwards, backwards gradually towards top.

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

As mentioned above, shake correction is magnetized to magnet 71,72: the magnetic pole forming on the lateral surface of the first magnet sheet 71a, the 72a of left and right directions (or fore-and-aft direction) is different from the magnetic pole forming on the lateral surface of the second magnet sheet 71b, 72b.; in shake, revise with the revising with being 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 relative opposite face of coil 73 with shake of magnet 71, shake revise with magnet 72 with shake correction with being 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 relative opposite face of coil 74.Therefore, shake is revised the magnetic line of force with magnet 71,72 generations for example to become the 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, the first magnet sheet 71a to revise with shake direction that 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 be slightly away from the region 80 (below using this region 80 as " first area 80 ") of the direction of oscillation centre 69.; revising with shake of the first magnet sheet 71a, with the magnetic force center of the magnetic pole forming on the relative opposite face of coil 73 (the N utmost point), be the upside of center C L11, at the first magnet sheet 71a, with the outside of the fore-and-aft direction (or left and right directions) of the relative opposite face of coil 73, be formed with first area 80 with shake correction.

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

In present embodiment, as shown in Figure 23, Figure 26, shake is revised with magnet 71 and is configured to coil 73 is relative with shake correction: 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 at and on optical axis direction, is compared to shake correction and uses the bearing surface 77 of 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 is configured in being formed on of the first magnet sheet 71a and shakes that to revise 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 other words, in present embodiment, long leg 73a is configured in 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 is configured in being formed on of the second magnet sheet 71b and shakes that to revise be the downside of center C L12 with the magnetic force center of the magnetic pole on the relative opposite face of coil 73.

In addition, in present embodiment, as shown in Figure 23, Figure 26, shake is revised with magnet 72 and is configured to coil 74 is relative with shake correction: 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 at and on optical axis direction, is compared to shake correction and uses the bearing surface 78 of 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 is configured in being formed on of the first magnet sheet 72a and shakes that to revise be the downside of center C L21 with the magnetic force center of the magnetic pole on the relative opposite face of coil 74.In other words, in present embodiment, long leg 74a is configured in 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 is configured in being formed on of the second magnet sheet 72b and shakes that to revise be the upside of center C L22 with the magnetic force center of the magnetic pole on the relative opposite face of coil 74.

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

Have in the optical unit 51 with shake correcting function 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), according to the testing result of sensor 172, shake is revised with coil 73,74 power supplies, movable module 62 swings centered by oscillation centre 69, will shake correction.In present embodiment, utilize swing driving mechanism 56, leaf spring 67, formed according to the testing result of sensor 172 and made lens driving module 203 swing the shake correction mechanism (hand shake correction mechanism) of revising shake (hand shake).

(the main effect of present embodiment)

As mentioned above, in present embodiment, shake revise with magnet 71 and shake correction with coil 73 relative configuration of upside 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 revise with magnet 72 and shake correction with coil 74 relative configuration of downside 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.

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

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

In present embodiment, shake is revised center C L13 with coil 73 and is disposed on optical axis direction and uses the bearing surface 77 of magnet 71 away from the position of oscillation centre 69 than shake correction.Therefore, revise when center C L13 with coil 73 is disposed at the equidistant position of leaving from oscillation centre 69 on optical axis direction and compare with bearing surface 77 and shake, can lengthen from oscillation centre 69 to the distance of shaking correction and use coil 73.Similarly, shake is revised center C L23 with coil 74 and is disposed on optical axis direction and uses the bearing surface 78 of magnet 72 away from the position of oscillation centre 69 than shake correction, therefore, revise when center C L23 with coil 74 is disposed at the equidistant position of leaving from oscillation centre 69 on optical axis direction and compare with bearing surface 78 and shake, can lengthen from oscillation centre 69 to the distance of shaking correction and use coil 74.Therefore, the torque for movable module 62 is swung can be increased, the driving force of swing driving mechanism 56 can be improved.

In present embodiment, long leg 73a is configured in first area 80, and long leg 74a is configured in first area 85.Therefore, be configured in first area 80,85 with short leg 73c, 73d, 74c, 74d and compare when interior, can further improve the driving force of swing driving mechanism 56.In addition, revise with coil 73,74 and be wound into roughly square and compare during formation with shake, in present embodiment, when improving the driving force of swing driving mechanism 56, can on above-below direction, realize the miniaturization with the optical unit 51 of shake correcting function.In addition, owing to almost not having contributive short leg 73c, 73d, 74c, 74d to shorten to the driving force of swing driving mechanism 56, therefore can reduce shake and revise the resistance value with coil 73,74, can reduce shake and revise the power consumption with coil 73,74.

(other embodiment)

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

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

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.; in this case; downside at the center C L1 of the first magnet sheet 21a; what be formed at the first magnet sheet 21a, revise the inner side of fore-and-aft direction (or left and right directions) of the opposite face relative with coil 23 and the direction of the magnetic line of force in the region away from the direction of fulcrum 119 slightly, configuration long leg 23a with hand shake.In addition, downside at the center C L2 of the second magnet sheet 21b, revising by the inner side of fore-and-aft direction (or left and right directions) of the relative opposite face of coil 23 and the direction of the magnetic line of force as slightly approaching in the region of direction of fulcrum 119 with hand shake of being formed at the second magnet sheet 21b, configure long leg 23b.

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

In above-mentioned embodiment, hand shake is revised and is consisted 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: hand shake is revised and consisted of a magnet sheet with magnet 21,71,72.In this case, in hand shake, revise with on each face in the two sides of magnet 21,71,72, a magnet sheet is magnetized to and is formed on the two poles of the earth magnetic pole overlapping on optical axis direction.

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

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

In above-mentioned embodiment, on base body 115, be formed with fulcrum projection 115b, on sender unit cap parts 111, be formed with the 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 fulcrum projection, be formed on 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 engaging with fulcrum projection 115b, or also can on sender unit cap parts 111, form fulcrum projection, be formed on base body 115 with the recess of this fulcrum protrusions snap.

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

In above-mentioned embodiment, at the downside of lens driving module 201,203, dispose sensor 171,172.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 above-mentioned embodiment, hand shake is revised with coil the 23,73, the 74th, hollow coil, but hand shake correction can be also the coil with bobbin with coil 23,73,74.

In above-mentioned embodiment, with the optical unit 100,51 of shake correcting function, be installed on the portable sets such as mobile phone.In addition, for example also can on the Tachographs of travel conditions that records automobile, install the optical unit 100,51 with shake correcting function.In this case, vibration of automobile etc. owing to 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), according to the testing result of sensor 171, opponent shakes and revises with coil 23 power supplies, movable module 202 swings centered by fulcrum 119, will shake correction.Or when utilizing sensor 172 to detect the variation of inclination of lens driving module 203, according to the testing result of sensor 172, opponent shakes and revises with coil 73,74 power supplies, movable module 62 swings centered by center of rotation 69, will shake correction.In addition, the optical unit 100,51 with shake correcting function also can be installed on other devices such as monitor camera.

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

In above-mentioned embodiment, leaf spring 117 is fixed on shell 116 with the state of deflection, to produce for making the fulcrum projection 115b pressurization of butt reliably of bearing surface 111a and the base body 115 of sender unit cap parts 111, therefore, the optical unit 100 with shake correcting function can suppress above-mentioned inclination.In addition, in above-mentioned embodiment, hand shake is revised with magnet 21 and hand shake and is revised with coil 23 is relative and be configured to hand shake and revise 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 larger is shaken correction and is configured to approach fulcrum 119 with magnet 21.Therefore, can make the center of gravity of movable module 202 self approach fulcrum 119, can reduce thus the turning moment of optical axis L movable module 202 when level, suppress the tilt quantity of movable module 202.

Yet, when the weight of movable module 202 becomes large, must increase the spring force of leaf spring 117, leaf spring 117 may be thicker, becomes large.Therefore, as shown in figure 28, also can be in movable module 202 stable equilibrium piece 40 so that the center of gravity of movable module 202 approaches 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, because the bottom at sender unit cap parts 111 is 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, configure counterbalance weight 40.Also can between the center of gravity of movable module 202 and fulcrum 119, counterbalance weight 40 be fixed in 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 causing in conjunction with the posture difference of the optical unit 100 with shake correcting function designs leaf spring 117 is eased, and therefore, the design freedom of leaf spring 117 increases.While configuring counterbalance weight 40 in the recess 111c of cover 111, comparatively it is desirable to counterbalance weight 40 and form corresponding circular of shape with circular recess 111c.Counterbalance weight 40 forms when circular, and no matter movable module 202 whichaways tilt, and can 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 101 with shake correcting function of embodiments of the present invention.Figure 30 is the cut-open view in the E-E cross section of Figure 29.Figure 31 means the stereographic map of a part of inscape in the F-F cross section of Figure 29.The structure of an above-mentioned embodiment is again basic identical with the structure of Figure 15～Figure 19 having illustrated, mainly different structures is described.

As shown in figure 31, the trailing flank of the cover 9 of present embodiment was upwards connected with the week of right flank at cover 9.Particularly, the trailing flank of cover 9 is circumferentially connected in the whole region of above-below direction with right flank.Similarly, the trailing flank of cover 9 is circumferentially connected in the whole region of above-below direction with left surface, the leading flank of cover 9 is circumferentially connected in the whole region of above-below direction with right flank, and the leading flank of cover 9 is circumferentially connected in the whole region of above-below direction with left surface.

That is, in present embodiment, being circumferentially connected in the whole region at above-below direction each other in the adjacent side that makes progress in week of cover 9.In addition, whole sides of cover 9 were upwards connected in week.That is, the cover 9 of present embodiment forms the roughly quadrangular barrel shape that whole sides are circumferentially connected in the whole region of above-below direction.In present embodiment, as shown in figure 31, in the coupling part in the adjacent side that makes progress in week of cover 9, be formed with curved face part (fillet part), but the end of side also can connect by direct orthogonalization each other.

In present embodiment, swing driving mechanism 46 comprises: shake is revised with magnet 321, revised the coil 23 for shake correction with the relative configuration of magnet 321 with shake.The swing driving mechanism 46 of present embodiment comprises shaking to revise with magnet 321 and four shake corrections for four uses coil 23.

Shake correction forms the tabular of essentially rectangular with magnet 321.In addition, shake correction consists 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 lower surface of the first magnet sheet 321a and the upper surface butt of the second magnet sheet 321b, the first magnet sheet 321a and the second magnet sheet 321b are adhesively fixed, thereby form shake, revise with magnet 321.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 from the thickness of the second magnet sheet 321b.

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

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

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

In addition, the shake correction being fixed on the side of left and right of cover 9 is tilted with the form that open in the outside of direction to the left and right gradually towards below with the lateral surface of magnet 321, and this shake correction is roughly trapezoidal by the shape that magnet 321 forms while observing from fore-and-aft direction.Similarly, the shake correction being fixed on the side of front and back of cover 9 is tilted with the form that open in the outside of direction forwards, backwards gradually towards below with the lateral surface of magnet 321, and this shake correction is roughly trapezoidal by the shape that magnet 321 forms while observing from left and right directions.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 from the thickness of the second magnet sheet 321b.

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

In addition, in present embodiment, as shown in figure 30, shake is revised with magnet 321 and is configured to coil 23 is relative with shake correction: 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 present embodiment, in shake, revise revising with the magnetic pole that is formed with the N utmost point and these the two poles of the earth of the S utmost point on the relative side of coil 23 with shake with magnet 321.Therefore, with in shake, revise with magnet 321 with shake revise with on the relative side of coil 23, be formed with the N utmost point and the S arbitrary utmost point in extremely magnetic pole time compare, can effectively utilize shake correction coil 23.That is, can utilize formation to be wound into roughly rectangular shake correction and with two long legs of the upper and lower side of coil 23, assign to produce the driving force of swing driving mechanism 46.Therefore, in present embodiment, can improve the driving force of swing driving mechanism 46, even when optical unit 101 miniaturizations with shake correcting function, slimming, also can obtain enough driving forces for lens driving module 201 is swung.

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

In 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 cover 9 use the magnetic pole of magnet 321 different.Therefore,, as shown in the arrow A 1 of Figure 31, in circumferentially adjacent shake correction, with 321 of magnets, easily form magnetic circuit.; shown in figure 32; so that while shake correction being fixed in the shake correction that the week of cover 99 the makes progress adjacent form identical with the magnetic pole of magnet 321 on the side of cover 99 with magnet 321; as shown in arrow A 10; from a shake, revise the magnetic line of force producing with magnet 321 and from another shake, revise the magnetic line of force collision producing with magnet 321; in circumferentially adjacent shake correction, with 321 of magnets, be difficult to form magnetic circuit; but in present embodiment; as shown in figure 31, in circumferentially adjacent shake correction, with 321 of magnets, easily form magnetic circuit.Therefore, can effectively improve the driving force of swing driving mechanism 46.

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

According to present inventor's research, with in shake, revise comparing when being formed with a utmost point magnetic pole on the relative side of coil 23 with shake correction with magnet 321, in shake, revise with the revising when being formed with the two poles of the earth magnetic pole on the relative side of coil 23 with shake of magnet 321, can make the driving force raising 144% of swing driving mechanism 6.

In addition, according to present inventor's research, revise with magnet 321 with shake so that compare while being fixed on the side of cover 9 by the identical form of the magnetic pole of magnet 321 in the shake correction that the week of cover 9 makes progress adjacent, shake is revised with magnet 321 so that while being fixed on the side of cover 9 by the different form of the magnetic pole of magnet 321 in the shake correction that the week of cover 9 makes progress adjacent, can make the driving force raising 7% of swing driving mechanism 46.

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

(other embodiment)

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

In above-mentioned embodiment, shake correction consists 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 consists of a magnet sheet with magnet 321.In this case, in shake, revise with on each face in two faces of magnet 321, a magnet sheet is magnetized to and is formed on the two poles of the earth magnetic pole overlapping on above-below direction.

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

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

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

In 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 cover 9 use the magnetic pole of magnet 321 different, but also can be like this: shake correction is fixed on the side of cover 9 with magnet 321, the magnetic pole of the shake correction use magnet 321 that makes to make progress adjacent in the week of cover 9 is identical.In addition, in 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 (16)

1. with an optical unit for shake correcting function, it is characterized in that, comprising:

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

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

Shake correction mechanism, this shake correction mechanism swings described lens driving module according to the testing result of described sensor, thereby revises shake,

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

Described swing driving mechanism comprises coil and shake correction magnet for shake correction opposite each other,

Described shake correction is used in coil configuration at least one region in first area and second area, in 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 described second area, the direction of the described magnetic line of force is slightly towards the direction of described fulcrum

Described shake correction becomes essentially rectangular with coil winding and forms, and described shake correction comprises first side portion parallel to each other and Second Edge portion with coil,

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

When using the side away from described fulcrum as first side portion, described first side portion is configured in described first area, and described Second Edge portion is configured in described second area.

2. the optical unit with shake correcting function as claimed in claim 1, 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, be fixed wtih described shake correction magnet, on the medial surface of described shell, be fixed wtih described shake correction coil.

3. the optical unit with shake correcting function as claimed in claim 2, is characterized in that, comprises base body, and this base body is fixed into one at lower end side and the described shell of described optical unit, thereby forms the supporter that supports described lens driving module,

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

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

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

Described first side portion and described Second Edge portion are described long legs.

5. the optical unit with shake correcting function as claimed in claim 1, is characterized in that, also comprises:

Supporter, lens driving module described in this support body supports; And

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,

The magnet holding member swinging together with described lens driving module is fixed in described shake correction with magnet, described shake correction is fixed on described supporter with coil,

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

6. the optical unit with shake correcting function as claimed in claim 5, is characterized in that,

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

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

7. the optical unit with shake correcting function as claimed in claim 6, it is characterized in that, the center configuration on described optical axis direction of described Second Edge portion approaches the position of described oscillation centre in be compared to described shake correction on described optical axis direction with the border of magnetic pole described in the two poles of the earth of the magnetic force center on described optical axis direction of magnet, and is disposed on described optical axis direction the position away from described oscillation centre than the magnetic force center of another magnetic pole in magnetic pole described in the two poles of the earth.

8. the optical unit with shake correcting function as claimed in claim 6, is characterized in that,

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

Described first side portion and described Second Edge portion are described long legs.

9. with an optical unit for shake correcting function, it is characterized in that, comprising:

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

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

Shake correction mechanism, this shake correction mechanism swings described lens driving module according to the testing result of described sensor, thereby revises shake,

Described shake correction mechanism comprises the swing driving mechanism that described lens driving module is swung,

Described swing driving mechanism comprises coil and shake correction magnet for shake correction opposite each other,

Described shake correction is used in coil configuration at least one region in first area and second area, in 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 described second area, the direction of the described magnetic line of force is slightly towards the direction of described oscillation centre

Described shake correction becomes essentially rectangular with coil winding and forms, and described shake correction comprises first side portion parallel to each other and Second Edge portion with coil,

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

When using the side away from described oscillation centre as first side portion, described first side portion is configured in described first area, and described Second Edge portion is configured in described second area.

10. the optical unit with shake correcting function as claimed in claim 9, 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, with the relative described shake correction of magnet, with coil, with respect to described oscillation centre, be fixed on the both sides of described optical axis direction with described shake correction.

11. optical units with shake correcting function as claimed in claim 10, it is characterized in that, described lens driving module utilizes leaf spring to be supported on 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 magnet and be fixed on two described shake corrections on the medial surface of described shell with between coils.

12. optical units with shake correcting function as claimed in claim 9, is characterized in that,

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

Described first side portion and described Second Edge portion are described long legs.

13. optical units with shake correcting function as claimed in claim 9, is characterized in that, also comprise:

Supporter, lens driving module described in this support body supports; And

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,

The magnet holding member swinging together with described lens driving module is fixed in described shake correction with magnet, described shake correction is fixed on described supporter with coil,

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

14. optical units with shake correcting function as claimed in claim 13, is characterized in that,

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

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

15. optical units with shake correcting function as claimed in claim 14, it is characterized in that, the center configuration on described optical axis direction of described Second Edge portion approaches the position of described oscillation centre in be compared to described shake correction on described optical axis direction with the border of magnetic pole described in the two poles of the earth of the magnetic force center on described optical axis direction of magnet, and is disposed on described optical axis direction the position away from described oscillation centre than the magnetic force center of another magnetic pole in magnetic pole described in the two poles of the earth.

16. optical units with shake correcting function as claimed in claim 14, is characterized in that,

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

Described first side portion and described Second Edge portion are described long legs.

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