CN103995414B - Lens driver - Google Patents
Lens driver Download PDFInfo
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- CN103995414B CN103995414B CN201410018146.9A CN201410018146A CN103995414B CN 103995414 B CN103995414 B CN 103995414B CN 201410018146 A CN201410018146 A CN 201410018146A CN 103995414 B CN103995414 B CN 103995414B
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- magnet
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- supporting member
- optical axis
- lens holder
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Abstract
A kind of lens driver, makes the compact in size of apparatus main body on the direction orthogonal with optical axis direction.In lens holder（7）X-direction on the periphery of side and the periphery of the side in Y direction clip yoke（13）It is respectively fixed with coil（1401a、1401b）, also, and coil（1401a、1401b）It is opposed to be equipped with magnet respectively（1101、1102）, across magnet（1101、1102）It is arranged opposite in the state of optical axis direction leaves to have coil（1201、1202）, utilize magnet（1101、1102）And coil（1401a、1401b）Composition makes lens holder（7）The 1st mobile travel mechanism, utilizes magnet（1101、1102）And coil（1201、1202）Composition makes supporting member（6）The 2nd mobile travel mechanism.
Description
Technical field
The present invention relates to lens driver, more particularly to the small-sized photograph of comparison suitable for being equipped on portable phone etc.
The lens driver of the hand shaking amendment of machine.
Background technology
In recent years, in the lens driver for being equipped on the portable phone with camera etc., with the height of camera
Performance, the requirement of multifunction, do not require nothing more than and possess automatic focusing function and also require possess hand shaking debugging functions.As with hand
The lens driver of debugging functions is trembled, should such as motion has the structure being modified using hand shaking correcting device to hand shaking
Hand shaking correcting device has：It will be provided with focus coil and be configured at the automatic focusing of the permanent magnet in the outside of the focus coil
The messenger wire for that can swing integrally is supported with lens driver；And the permanent magnet with automatic focusing lens driver
Hand shaking amendment coil arranged opposite（For example, referring to patent document 1）.
Patent document 1：Japanese Unexamined Patent Publication 2011-65140 publications
But, in structure as described above, the framework of hand shaking correcting device have it is rectangular-shaped, corresponding with the framework
Four sides are configured with permanent magnet.Thus, exist must assure that focus coil outside configure permanent magnet space, so as to
The problem of miniaturization difficult of the size of the lens driver in the orthogonal direction of optical axis direction.
The content of the invention
The present invention exactly in view of this point and complete, its object is to provide it is a kind of can make it is orthogonal with optical axis direction
The lens driver compact in size of apparatus main body on direction.
The lens driver of the present invention, possesses：Keeping body, with the lens holder that can keep lenticular body and makes institute
State the 1st travel mechanism that lens holder is moved along optical axis direction；And the 2nd travel mechanism, make the keeping body along and optical axis
Direction is orthogonal and the 1st direction mutually reported to the leadship after accomplishing a task and the 2nd direction are moved, and the 1st travel mechanism, which possesses, is configured at the lens
The 1st coil and magnet around bracket, the lens driver are characterised by, described the of the lens holder
The periphery of the periphery of side on 1 direction and the side on the 2nd direction clips the yoke for being arranged at the lens holder
And the 1st coil is fixed respectively, also, be opposed to arrange the magnet respectively with the 1st coil, across the magnet
Arranged opposite in the state of optical axis direction leaves to have the 2nd coil, the magnet and the 2nd coil constitute the 2nd movement
Mechanism.
According to said lens drive device, the dual-purpose magnet in the 1st travel mechanism and the 2nd travel mechanism, also, it is above-mentioned
Magnet configuration in the 1st direction of lens holder and the periphery of the side in the 2nd direction, therefore need not such as clip lens holder and
The situation of distributed magnet ensures in the space of the both sides distributed magnet of lens holder like that.Thereby, it is possible to make with optical axis direction just
Apparatus main body on the direction of friendship it is compact in size.
In said lens drive device, preferably not under the original state of the 1st coil electricity, by described
The magnetic force acted between magnet and the yoke keeps the lens holder neutral position in the direction of the optical axis.In the situation
Under, lens holder is kept into neutrality in the direction of the optical axis by the magnetic force acted between magnet and yoke in an initial condition
Movement when position, extreme position therefore, it is possible to shorten the side for making lens holder be moved to optical axis direction or opposite side
Distance, therefore, it is possible to reduce the magnitude of current for making lens holder required when moving.In addition, in an initial condition by magnet and
The magnetic force acted between yoke keeps lens holder neutral position in the direction of the optical axis, and there is no need for make lens support
Frame returns to the special construction of neutral position, so can suppress the parts number of constituent apparatus main body.
In particular, in said lens drive device, the yoke preferably on optical axis direction be sized and configured to pair
The size below size on the optical axis direction for the magnet answered.In this case, by carrying out lens on the basis of yoke
The positioning of bracket, the scope configuration yoke that relatively strong magnetic force that can be among the magnetic field produced from magnet is fed through to,
Therefore, it is possible to the neutral position with high accuracy by lens holder configuration in the direction of the optical axis.
In addition, in said lens drive device, the keeping body has the supporting member set for the magnet, in institute
State and be equipped with ball between lens holder and the supporting member, by the magnetic force, the ball is clamped in the lens
Between bracket and the supporting member, also, the lens holder can be moved relative to the supporting member along optical axis direction.
In this case, being configured to the lens holder in the state of the ball contact being disposed between supporting member can be relative to branch
Bearing portion part is moved along optical axis direction, therefore, it is possible to reduce lens holder along optical axis direction move when friction, therefore, it is possible to make
Mirror bracket is swimmingly moved.
In particular, in said lens drive device, preferably described ball is to clip the central portion of the lens holder
Mode is disposed in two positions left in circumference of the lens holder.In this case, central portion is clipped in lens holder
And two positions left arrange ball, therefore, it is possible to which lens holder to be clipped to two portions that its central portion significantly leaves
Position is supported on supporting member, therefore, it is possible to ensure stability and lens holder can be made to be moved along optical axis direction.
And then, in said lens drive device, preferably described supporting member has rectangular-shaped, the ball when overlooking
It is disposed in the diagonal corresponding position with the supporting member.In this case, due to diagonal corresponding with supporting member
Position arranges ball, so the corner part periphery for the supporting member for easily becoming dead band can effectively be applied flexibly, therefore, it is possible to make
Apparatus main body on the direction orthogonal with optical axis direction it is compact in size.
In addition, in said lens drive device, preferably described yoke is made up of single part, and the yoke is installed on institute
Lens holder is stated, also, is connected with the yoke one end of each the 1st coil.In this case, it is installed on lens support
The yoke of frame is made up of single part, and one end of each the 1st coil is connected with yoke, so can be by the use of yoke as right
The power supply path of the 1st coil of both sides, can carry out power supply with simple structure to the 1st coil.
In addition, in said lens drive device, the lens driver possesses keeping body supporting for can
Mobile messenger wire, the messenger wire is made up of conductive metal material, also, one end of the messenger wire is described via being fixed on
The metal parts being made up of conductive material of supporting member is connected with the supporting member.In this case, messenger wire and with
The metal parts of messenger wire connection is made up of conductive material, therefore, it is possible to be used them as power supply path,
Therefore the power supply to the 1st coil etc. can just be carried out without special structure.
In addition, in said lens drive device, nonmagnetic sheet metal being embedded with the supporting member, is used for
One group of magnet for making the keeping body be moved along the 1st direction clips the sheet metal and arranges arranging in optical axis direction, and
And, arranged for making another group of magnet that the keeping body is moved along the 2nd direction clip the sheet metal in optical axis direction
Row are arranged.In this case, in order that keeping body moves along the 1st direction, the 2nd direction and is provided with one on supporting member respectively
Group magnet, therefore, it is possible to ensure the magnetic force for moving keeping body, can be such that keeping body is swimmingly moved along the 1st direction, the 2nd direction
It is dynamic.In addition, burying sheet metal and constituting supporting member, it is used for two groups of magnet of holding therefore, it is possible to have supporting member
Intensity, and it is able to ensure that the free degree of the design of supporting member.Thus, even if for example, in one end of messenger wire and supporting member
In the case of connection, becoming large-sized for supporting member can be also avoided, and the coupling part can be formed.
And then, in said lens drive device, preferably described 1st coil is bundled into along putting down that optical axis direction extends
Tabular.In this case, due to the 1st coil is bundled into the tabular extended along optical axis direction, so the 1st line can be reduced
The size in the direction orthogonal with optical axis direction of circle, therefore, it is possible to make the chi of the apparatus main body on the direction orthogonal with optical axis direction
Very little miniaturization.
Invention effect
In accordance with the invention it is possible to make the compact in size of the apparatus main body on the direction orthogonal with optical axis direction.
Brief description of the drawings
Fig. 1 is the exploded perspective view of the lens driver involved by one embodiment of the present invention.
Fig. 2 is the enlarged drawing on the supporting member periphery that the lens driver involved by above-mentioned embodiment has.
Fig. 3 is the enlarged drawing on the lens holder periphery that the lens driver involved by above-mentioned embodiment has.
Fig. 4 is to show to assemble the stereogram of the state of said lens drive device from upper side.
Fig. 5 is from the stereogram in the case of the upper side body of lens driver dismounting shown in Fig. 4.
Fig. 6 is that side shows to assemble the stereogram of the state of said lens drive device from below.
Fig. 7 is the sectional view for the yoke having through the lens driver involved by above-mentioned embodiment.
Fig. 8 is the line A-A regarding sectional view of the lens driver shown in Fig. 4.
Fig. 9 is the line B-B regarding sectional view of the lens driver shown in Fig. 4.
Description of symbols
1 lens driver
2 times side bodies
3 downside FPC（Flexible printed circuit board）
4th, 401a~401d messenger wires
5 metal parts
501~503 sheet metals
6 supporting members
601 main parts
602nd, 602a, 602b sheet metal
603 side of sidewall portion
604 maintaining parts
605a, 605b incorporating section
7 lens holders
701st, 702 face is protruded
701a, 701b, 702a, 702b retention tab
703rd, 704 hooking sheet
703a, 704a protuberance
Side body on 8
9 upside FPC（Flexible printed circuit board）
1001a, 1001b magnetic detecting element
1101st, 1101a, 1101b magnet
1102nd, 1102a, 1102b magnet
1201st, 1201a, 1201b coil
1202nd, 1202a, 1202b coil
13 yokes
1401st, 1401a, 1401b coil
1501st, 1502 ball
Embodiment
Hereinafter, embodiments of the present invention are described in detail referring to the drawings.Fig. 1 is one embodiment of the present invention institute
The exploded perspective view for the lens driver 1 being related to.Fig. 2 is that the lens driver 1 involved by present embodiment has
The enlarged drawing on the periphery of supporting member 6.Fig. 3 is the lens holder that has of the lens driver 1 involved by present embodiment 7 weeks
The enlarged drawing on side.In addition, simplifying a part for lens holder 7 in Fig. 1.
Lens driver 1 involved by present embodiment possesses the lens by allowing to keep lenticular body (not shown)
Bracket 7 is along optical axis direction（Z-direction shown in Fig. 1）The automatic focusing function for the focusing for moving to carry out camera.In addition, lens
Drive device 1 possesses by making the supporting member 6 for the outer circumferential side for being arranged at lens holder 7 along orthogonal with optical axis direction and mutual
The direction reported to the leadship after accomplishing a task under quadrature（X-axis, Y direction shown in Fig. 1）It is mobile（Micro movement）And a pinch shadow optical axis is remained one
Fixed hand shaking debugging functions.
As shown in figure 1, lens driver 1 possesses：The lower side body 2 of a part for the framework of constituent apparatus main body；With
The downside FPC that the upper surface of the lower side body 2 overlaps（Flexible printed circuit board）3；And via messenger wire 4 and metal parts
5 are supported on downside FPC3 supporting member 6.In addition, lens driver 1 possesses：Keep the lens of lenticular body (not shown)
Bracket 7；The upper side body 8 of a part for the framework of constituent apparatus main body；And overlapped with the top surface of side body on this 8
Upside FPC9.
Lower side body 2 is for example formed and constituted by the resin material to insulating properties, with substantially writing board shape.Under
Side body 2 have it is rectangular-shaped, be formed with its four corner for by messenger wire 4 be fixed on downside FPC3 four fixing hole 201a~
201d.In addition, being formed with the opening portion 202 of toroidal on the inside of above-mentioned fixing hole 201a~201d.Store the opening portion 202
Pinch element on the substrate of mounted lens drive device 1.Opening portion 202 is formed by fixing hole 201d sides.In opening portion 202
Outside and be between fixing hole 201a and fixing hole 201b while and fixing hole 201b and fixing hole 201c between while it is outer
A pair of breakthrough parts 203a, 203b are provided between edge.Above-mentioned breakthrough part 203a, 203b are arranged to store magnetic inspection described later
Survey element 1001a, 1001b size.
Downside FPC3 has：The rectangular-shaped portion 301 overlapping with the upper surface of lower side body 2；And from the rectangular-shaped portion 301
One side towards outside stretch out set extension 302.Four for insertion messenger wire 4 are formed with four corners in rectangular-shaped portion 301
Individual through hole 301a~301d.In addition, in rectangular-shaped portion 301, in position shape corresponding with the opening portion 202 of lower side body 2
Into there is opening portion 303.Pattern is provided with and pulled around on extension 302（Draw I and return パ タ ー Application）What is turned on is (not shown) outer
Portion's connection terminal.Slit 304 is formed with the base end part periphery of extension 302.The slit 304 is in order to for upside described later
The front end insert of FPC9 linking part 901 is so as to by the pulling around the pulling around pattern electrical connection of pattern and upside FPC9 of downside FPC3
Set.In addition, downside FPC3 is fixed on the upper surface of lower side body 22 by two-sided tape or bonding agent etc..
In downside, the assigned position of FPC3 lower surface is provided with a pair of magnetic detecting elements 1001a, 1001b.Above-mentioned magnetic inspection
Element 1001a, 1001b is surveyed to be configured in the case where downside FPC3 is overlapping with lower side body 2 by breakthrough part 203a, 203b storage
Position.For example, above-mentioned magnetic detecting element 1001a, 1001b are made up of Hall element.It is above-mentioned as in rear detailed narration
The magnetic field of magnetic detecting element 1001a, 1001b to the movement of X-direction, Y direction shown in Fig. 1 along with supporting member 6
The change of intensity is detected.In addition, the X-direction, Y direction shown in Fig. 1 respectively constitute the 1st direction, the 2nd direction.
Messenger wire 4 is formed by flexible and conductive metal material, and is made up of four messenger wire 401a~401d.
One end（Bottom）Insertion through hole 301a~301d and solder is in downside FPC3 lower surface（Pull around pattern）.The opposing party
Face, the other end of messenger wire 4（Upper end）Insertion through hole 501a, 502a, 503a, 503b described later and solder is in metallic plate
The upper surface of material 501~503.
Metal parts 5 is implemented punch press process by the conductive sheet metal to phosphor bronze etc. and formed.Metal
Part 5 is made up of three sheet metals 501~503.It is respectively formed with sheet metal 501,502 for messenger wire 401a, 401b
Upper end insertion through hole 501a, 502a.In addition, being formed with the upper end for messenger wire 401c, 401d on sheet metal 503
Through hole 503a, 503b of portion's insertion.In addition, being formed with sheet metal 501~503 for being fastened to support
The opening portion of the upper surface of part 6.
Supporting member 6 is for example by embedded by non magnetic relative to the main part 601 being made up of the resin material of insulating properties
Material formation sheet metal 602 and constitute.Supporting member 6 is made up of main part 601 and sheet metal 602, when overlooking
With substantially rectangular shape.Main part 601 has：The side of sidewall portion 603 being correspondingly arranged when overlooking with 2 adjacent sides；And configuration
The diagonal maintaining part 604 in the corner reported to the leadship after accomplishing a task in 2 sides of the adjoining of the side of sidewall portion 603.In addition, in the support shown in Fig. 1
In part 6, the state after the part thermal deformation for fixed metal plate material 501~503 is shown.It is also identical in fig. 2.
The inwall for the side of sidewall portion 603 for constituting main part 601 is provided with arc surface 603a.In addition, as shown in Fig. 2 in side
The both ends periphery of wall portion 603 is provided with the hooking sheet 703,704 and ball 1501,1502 for storing lens holder 7 described later
Incorporating section 605a, 605b（Reference picture 7）.Utilize what is be provided projectingly by the end in side of sidewall portion 603 towards the inner side of supporting member 6
Protrusion tab 603b and in the protrusion tab 603c for positioning away from being provided projectingly towards the inner side of supporting member 6 from protrusion tab 603b
The space formed, constitutes above-mentioned incorporating section 605a, 605b.
The sheet metal 602 for being embedded in main part 601 is configured at the optical axis direction of supporting member 6（Z axis side shown in Fig. 1
To）Center near.More specifically, sheet metal 602 is configured to link both ends and the maintaining part 604 of side of sidewall portion 603.Example
Such as, sheet metal 602 is embedded in main part 601 by insert molding.It is preferred that sheet metal 602 is configured to generally L-shaped shape,
The bent portion of the sheet metal 602 is kept using maintaining part 604.
In addition, illustrated to the situation that sheet metal 602 is constituted using single part, but it is also possible to utilize one herein
Sheet metal 602 is constituted to the part with rectilinear form.As in rear detailed narration, involved by present embodiment
In lens driver 1, due to fixed magnet 1101,1102 on supporting member 6, so in order to ensure certain intensity above
And embedded sheet metal 602.But, just can also be using resin material to supporting as long as being able to ensure that the intensity more than certain
Part 6 carries out integrally formed.
In addition, as shown in figure 1, sheet metal 602 exposes from supporting member 6 at two positions.Below for the side of explanation
Just and by the side exposed from supporting member 6 it is referred to as metal parts 602a, the opposing party is referred to as metal parts 602b.In metal portion
Part 602a upper surface and lower surface is fixed with a pair of magnet 1101（1101a、1101b）, in metal parts 602b upper table
Face and lower surface are fixed with a pair of magnet 1102（1102a、1102b）（Reference picture 2）.Used in addition, a pair of magnet 1101 is constituted
In making supporting member 6 along X-direction（1st direction）One group of mobile magnet, a pair of magnet 1102 is constituted for making supporting member
6 along Y direction（2nd direction）Another group of mobile magnet.
Above-mentioned magnet 1101,1102 has substantially prism shape.Magnet 1101a, 1102a lower surface are individually fixed in gold
Belong to part 602a, 602b upper surface.On the other hand, magnet 1101b, 1102b upper surface is individually fixed in metal parts
602a, 602b lower surface.Above-mentioned magnet 1101,1102 be adhered to respectively such as by bonding agent metal parts 602a,
602b。
It is opposed to be configured with coil 1201,1202 respectively with above-mentioned magnet 1101,1102.Above-mentioned coil 1201,1202 structures
Into the 2nd coil, be bundled into along with optical axis direction（Z-direction shown in Fig. 1）The tabular of orthogonal direction extension.Above-mentioned line
Circle 1201,1202 profile overlook when include substantially rectangular shape, part corresponding with long side be configured to magnet 1101,
1102 surface（Upper surface, lower surface）Identical shape.In addition, the central portion of coil 1201,1202 respectively becomes hollow shape
State.In addition, constituted using above-mentioned magnet 1101,1102 and coil 1201,1202 supporting member 6 for making composition keeping body and
The 2nd travel mechanism that lens holder 7 is moved.
Coil 1201 is made up of a pair of coils 1201a, 1201b.Coil 1201a two ends solder is under the FPC9 of upside
Surface, the upper surface of coil 1201a lower surface and magnet 1101a is arranged opposite.On the other hand, coil 1201b two ends are soft
Downside FPC3 upper surface is brazed in, coil 1201b upper surface and magnet 1101b lower surface are arranged opposite.Similarly, line
Circle 1202 is made up of a pair of coils 1202a, 1202b.Coil 1202a two ends solder is in upside FPC9 lower surface, coil
The upper surface of 1202a lower surface and magnet 1102a is arranged opposite.On the other hand, coil 1202b two ends solder is in downside
FPC3 upper surface, coil 1202b upper surface and magnet 1102b lower surface are arranged opposite.In addition, coil 1201a,
1202a is fixed on upside FPC9 lower surface by bonding agent etc., and coil 1201b, 1202b are fixed on downside by bonding agent etc.
FPC3 upper surface.
Lens holder 7 is for example formed and constituted by the resin material to insulating properties, is arranged to substantially cylindrical shape.
The inner peripheral surface of lens holder 7 is provided with thread groove（Reference picture 3）, fixed not in the way of it can be adjusted along optical axis direction
The lenticular body of diagram.The outer peripheral face of lens holder 7 is provided with a pair of protrusion faces towards the radial outside protrusion of lens holder 7
701、702.Above-mentioned prominent face 701,702 is provided projectingly along mutually orthogonal direction.Specifically, face 701 is protruded along Fig. 1
Shown X-direction is provided projectingly, and the Y direction shown in prominent face 702 along Fig. 1 is provided projectingly.
Prominent face 701 is provided with a pair of retention tabs 701a, 701b for keeping coil 1401a described later.It is above-mentioned
Retention tab 701a, 701b is configured spaced at a distance in the Y direction shown in Fig. 1.Similarly, set in prominent face 702
There are a pair of retention tabs 702a, 702b for keeping coil 1401b described later.Above-mentioned retention tab 702a, 702b is shown in Fig. 1
X-direction is configured spaced at a distance.
Yoke 13 and a pair of coils 1401 are installed in the periphery of above-mentioned prominent face 701,702（1401a、1401b）.
Yoke 13 to having magnetic sheet metal implementation punch press process and bending machining by forming.Yoke 13 has at two
The shape of position bending, is configured to along the periphery of prominent face 701,702.It is provided with yoke 13 for for prominent face
701st, the opening portion of 702 retention tab 701a, 701b and the insertion of retention tab 702a, 702b.In retention tab 701a, 701b and
In the state of the above-mentioned opening portion of retention tab 702a, 702b insertion, yoke 13 is fixed on the outer peripheral face of lens holder 7.For example, yoke
13 is fixed by bonding agent etc..
Coil 1401a, 1401b constitute the 1st coil, are bundled into along optical axis direction（Z-direction shown in Fig. 1）Extension
Tabular.Above-mentioned coil 1401a, 1401b central portion turn into hollow state.Via yoke 13 protrude retention tab 701a,
701b and retention tab 702a, 702b, as shown in figure 3, being incorporated in above-mentioned coil 1401a, 1401b central portion turns into hollow
A part for state.Coil 1401a, 1401b using as hollow state a part store retention tab 701a, 701b and
A part for prominent face 701,702 is fixed in the state of retention tab 702a, 702b.For example, coil 1401a, 1401b pass through
Bonding agent etc. is fixed.Above-mentioned coil 1401a, 1401b one end are connected with a part for yoke 13, and other end solder is in fixation
In a part for the metal parts 5 of supporting member 6（Reference picture 3, Fig. 5）.In addition, utilizing above-mentioned coil 1401a, 1401b, yoke
13 and above-mentioned magnet 1101,1102 constitute and make the 1st travel mechanism that lens holder 7 is moved along optical axis direction.In addition, utilizing
Component parts including the 1st travel mechanism, lens holder 7 and supporting member 6 constitutes keeping body.
In addition, the outside of prominent face 701,702 and lens holder 7 outer peripheral face be provided with a pair of hooking sheets 703,
704.Hooking sheet 703 clips prominent face 701 and configured in the position of the opposite side of prominent face 702.On the other hand, hooking sheet
704 clip prominent face 702 and configure in the position of the opposite side of prominent face 701.Be provided with the front end of hooking sheet 703 with
Retention tab 701a, 701b is in the same direction（X-direction shown in Fig. 1）Prominent protuberance 703a.On the other hand, in locking
The front end of piece 704 is provided with retention tab 702a, 702b in the same direction（Y direction shown in Fig. 1）Prominent protuberance
704a。
Above-mentioned hooking sheet 703,704 be incorporated in together with ball 1501,1502 supporting member 6 incorporating section 605a,
605b.Ball 1501,1502 is created as the spheroid of spherical shape, is made up of respectively nonmagnetic metal material.In this embodiment party
In formula, as ball 1501,1502, to possessing multiple respectively（More specifically three）The situation of ball is illustrated, its
Quantity is not limited to this.As in rear detailed narration, above-mentioned ball 1501,1502, which is played, to be made to press on supporting member 6
Lens holder 7 along optical axis direction（Z-direction shown in Fig. 1）The effect swimmingly moved.
Upper side body 8 is for example constituted by being machined to nonmagnetic substance, is arranged to towards the lower section shown in Fig. 1
The box-like of side opening.Upper side body 8 has：It is arranged to the upper surface part 801 of substantially rectangular shape when overlooking；And from the upper table
The side edge part of face 801 hangs down the side surface part 802 of setting.The center of upper surface part 801 is provided with the opening portion of toroidal
801a.Constitute side surface part 802 side surface part 802a center be provided with store upside FPC9 described later linking part 901 it is swollen
Go out portion 802b.In addition, side surface part 802a bottom is arranged to shorter than the bottom of other side surface parts 802, it is configured in assembling
Downside FPC3 extension 302 is enabled to expose towards the outside in the state of lens driver 1.
Upside FPC9 is fixed on the lower surface of the upper surface part 801 of side body 8（Top surface）.For example, upside FPC9 passes through
Two-sided tape or bonding agent etc. are adhered to the top surface of side body 8.Upside FPC9 has and the adjoining in the top surface of upper side body 8
The corresponding shape of an opposite side.Court upside FPC9 corresponding with the side surface part 802a of upper side body 8 side edge part, which hangs down, to be provided with
Linking part 901.The front end of the linking part 901 is inserted through downside FPC3 slit 304.Utilize the surface for being arranged at linking part 901
Pull around pattern, the upside FPC9 pattern that pulls around is electrically connected with the downside FPC3 pattern that pulls around.
Secondly, the state for assembling the lens driver 1 involved by present embodiment is illustrated.Fig. 4 is from upper
Square side shows to assemble the stereogram of the state of the lens driver 1 involved by present embodiment.Fig. 5 is from shown in Fig. 4
Lens driver 1 removes the stereogram in the case of upper side body 8.Fig. 6 is that side shows to assemble present embodiment from below
The stereogram of the state of involved lens driver 1.In addition, in Fig. 4~Fig. 6, showing lens holder 7 and support
Lens driver 1 under the original state that part 6 is not yet moved.In addition, for convenience of description, upside FPC9 is omitted in Figure 5,
Lower side body 2, downside FPC3 and messenger wire 4 are omitted in figure 6.
As shown in figure 4, lens driver 1 is in the state of assembled, as by lower side body 2 and upper side body 8
Store the state for the constituent parts for including supporting member 6 and lens holder 7 in the inner space of formation.Lenticular body (not shown) is led to
The opening portion 801a for crossing the upper surface part 801 through being formed from upside housing 8 is screwed into lens holder 7 and is assembled, and is configured to
The enough and one of lens holder 7 is mobile.In addition, lower side of the downside FPC3 extension 302 from the side surface part 802a of upper side body 8
Expose.
In the inside of lens driver 1, as shown in figure 5, downside FPC3 is overlapping with the upper surface of lower side body 2, borrow
Help messenger wire 4, the quilt in the state of being left from the coil 1201,1202 for being fixed on upside FPC9 and downside FPC3 of supporting member 6
Supporting.In this case, messenger wire 401a~401d bottom solder is in downside FPC3 lower surface, and insertion through hole
301a~301d and upward side stretch out.On the other hand, messenger wire 401a~401d upper end solder is in passing through hot riveting etc.
It is fixed on the main part 601 of supporting member 6（Side of sidewall portion 603 and maintaining part 604）Upper surface sheet metal 501~503
Upper surface.That is, supporting member 6 turns into the state being suspended via messenger wire 4 and metal parts 5.
In addition, being fixed on the magnet 1101,1102 of the sheet metal 602 of supporting member 6 with above-mentioned upper surface and following table
The mode that face is not contacted with the surface of coil 1201,1202 is arranged opposite.Lens holder 7 is configured at the inner side of supporting member 6, borrows
Help the magnetic force acted between magnet 1101,1102 described later and yoke 13 and be configured at assigned position（The optical axis of supporting member 6
The neutral position in direction）.
On the other hand, as shown in fig. 6, in downside FPC3 lower surface, corresponding with magnet 1101b, 1102b lower surface
Position magnetic detecting element 1001a, 1001b are installed.Above-mentioned magnetic detecting element 1001a, 1001b are configured in an initial condition
Position near the center of magnet 1101b, 1102b long side direction.Above-mentioned magnetic detecting element 1001a, 1001b are respectively to adjoint
The change for the magnetic field intensity of the movement of X-axis, Y direction shown in Fig. 6 of supporting member 6 is detected.By magnetic detecting element
The signal that 1001a, 1001b are detected is exported to being equipped with the portable of lens driver 1 via the downside FPC3 pattern that pulls around
The control unit of formula telephone device etc..
Hereinafter, the position of the component parts of the lens driver 1 involved by present embodiment is closed using Fig. 7~Fig. 9
System illustrates.Fig. 7 is the sectional view for the yoke 13 having through the lens driver 1 involved by present embodiment.Fig. 8
It is the line A-A regarding sectional view of the lens driver 1 shown in Fig. 4.Fig. 9 is the B-B of the lens driver 1 shown in Fig. 4
Line regarding sectional view.In addition, in Fig. 7~Fig. 9, also showing that the lens driver 1 under original state.In addition, in Fig. 8 and
In Fig. 9, the magnetized state of magnet 1101,1102 is shown for illustration.
As shown in fig. 7, coil 1401a, 1401b are arranged on X-axis, the Y-axis shown in Fig. 7 of lens holder 7 across yoke 13
The periphery of side on direction.Also, magnet 1101,1102 in the state of leaving respectively with above-mentioned coil 1401a, 1401b
It is opposite disposed.In addition, as shown in Figure 8, Figure 9, it is arranged opposite in the state of being left across magnet 1101 in optical axis direction to have one
To coil 1201a, 1201b, also, arranged opposite in the state of being left across magnet 1102 in optical axis direction there are a pair of coils
1202a、1202b。
In lens driver 1, dual-purpose supply makes the magnetic force of the movement of lens holder 7 and supply moves supporting member 6
The magnet 1101,1102 of dynamic magnetic force, also, the X-axis shown in the Fig. 7 of the configuration of above-mentioned magnet 1101,1102 in lens holder 7
Direction, the periphery of the side of Y direction, therefore, there is no need to ensure as the situation for configuring a pair of magnet across lens holder 7
Configure the space of a pair of magnet, so as to make X-direction, apparatus main body in Y direction it is compact in size.
More specific description is carried out to magnet 1101,1102, yoke 13 and coil 1401a, 1401b position relationship.
As shown in Fig. 7~Fig. 9, the inner surface of coil 1401a, 1401b respectively with magnet 1101,1102 is arranged opposite.As described above, line
Circle 1401a, 1401b are bundled into along optical axis direction（Z-direction shown in Fig. 1）The tabular of extension, as its one side（Outside
The face of side）With the opposed and another side of magnet 1101,1102（The face of inner side）The state opposed with yoke 13.Like this by coil
1401a, 1401b are bundled into the tabular extended along optical axis direction, therefore, it is possible to reduce coil 1401a, 1401b and optical axis
Size on the orthogonal direction in direction, so as to realize the small-sized of the size of the apparatus main body on the direction orthogonal with optical axis direction
Change.
Yoke 13 is configured at above-mentioned coil 1401a, 1401b inner side.Optical axis direction（Z-direction shown in Fig. 8, Fig. 9）
On yoke 13 the equidirectional being sized and configured to than distinguishing opposed magnet 1101,1102 across coil 1401a, 1401b
On size it is short.Yoke 13 is constituted by having magnetic sheet metal, therefore is attracted by the magnetic force from magnet 1101,1102.
Therefore, being fixed with the lens holder 7 of yoke 13 turns into also by the state towards magnet 1101, the attraction of 1102 sides.In this case, thoroughly
Mirror bracket 7 is attracted towards the side of maintaining part 604 of supporting member 6.In addition, in the initial shape not being powered to coil 1401a, 1401b
Under state, lens holder 7 configures the light in supporting member 6 by the magnetic force acted between magnet 1101,1102 and yoke 13
The neutral position of direction of principal axis.
As shown in fig. 7, being accommodated with the hooking sheet 703 and ball of lens holder 7 in the incorporating section 605a of supporting member 6
1501.As described above, lens holder 7 is because of the magnetic force that is acted between magnet 1101,1102 and yoke 13 and by towards supporting member 6
The side of maintaining part 604 attract.Therefore, ball 1501 is clamped in hooking sheet 703 and protuberance 703a internal face and therewith
Between opposed incorporating section 605a internal face.Similarly, the hooking sheet 704 of lens holder 7 is accommodated with the 605b of incorporating section
And ball 1502.Ball 1502 is clamped in hooking sheet 704 and protuberance 704a internal face and storage opposed therewith
Between portion 605b internal face.As shown in fig. 7, ball 1501,1502 in the way of clipping the central portion of lens holder 7 to be disposed in
Two positions left in circumference of the lens holder 7.In addition, by mutual through the center of ball 1501 and ball 1502
The region distributed magnet 1101 of the side that plane is divided into and magnet 1102 this both sides.Thus, ball 1501,1502 is by magnet
1101st, 1102 magnetic force and be maintained at steady-state between lens holder 7 and supporting member 6.
In addition, the magnetic force acted between magnet 1101,1102 and yoke 13 be configured to lens holder 7 can be along optical axis
Direction（Z-direction shown in Fig. 7）Mobile degree.Therefore, ball 1501,1502 is clamped in lens in the way of it can roll
Bracket 7（More specifically, it is hooking sheet 703,704）Internal face and opposed therewith incorporating section 605 internal face between.
That is, be accommodated in incorporating section 605a, 605b ball 1501,1502 turn into allow lens holder 7 optical axis direction movement and
It is maintained at the state between supporting member 6 and lens holder 7.
As shown in Figure 8, Figure 9, it is fixed on the sheet metal 602 of supporting member 6（602a、602b）Magnet 1101,1102
Be fixed on upside FPC9, downside FPC3 coil 1201,1202 it is arranged opposite.It is installed on the magnetic inspection of downside FPC3 lower surface
Element 1001a configurations are surveyed in position corresponding with the central portion of magnet 1101, coil 1201 respectively（Reference picture 9）.Similarly, pacify
Lower surface loaded on downside FPC3 magnetic detecting element 1001b configuration respectively with magnet 1102, the central portion pair of coil 1202
The position answered（Reference picture 8）.
In addition, in magnet 1101,1102, there is different magnetic poles along the radial arrangement of lens holder 7.In addition, in magnetic
In iron 1101, the magnet 1101b of the magnetic pole for being disposed above the magnet 1101a of a side of side and the opposing party for being configured at lower side
Magnetic pole be configured to different magnetic poles.For example, magnet 1101a Outboard Sections are geomagnetic into S poles, and inboard portion is geomagnetic into
N poles.Magnet 1101b Outboard Sections are geomagnetic into N poles, and inboard portion is geomagnetic into S poles.Similarly, in magnet 1102,
The magnetic pole structure of the magnetic pole for being disposed above the magnet 1102a of a side of side and the magnet 1102b for the opposing party for being configured at lower side
As different magnetic poles.For example, magnet 1102a Outboard Sections are geomagnetic into S poles, and inboard portion is geomagnetic into N poles.Magnet
1102b Outboard Sections are geomagnetic into N poles, and inboard portion is geomagnetic into S poles.
Secondly, the action to the lens driver 1 involved by present embodiment is illustrated.First, to utilizing magnet
1101st, 1102 magnetic fields produced inside the framework of lens driver 1 are illustrated.In the framework of lens driver 1
In portion, as shown in Figure 8, Figure 9, magnetic field is produced on the periphery of magnet 1101,1102.
In the magnetic field that the upper side of magnet 1101,1102 is produced, produce from the inner side of magnet 1101,1102 towards outside
The magnetic line of force of traveling.On the other hand, in the magnetic field that the lower side of magnet 1101,1102 is produced, produce from magnet 1101,1102
The magnetic line of force advanced towards inner side of outside.The configuration of coil 1201,1202 is on the path of the magnetic line of force for constituting above-mentioned magnetic field.This
Outside, magnetic detecting element 1001a, 1001b configures the magnetic line of force in the magnetic field produced in the lower side for being formed in magnet 1101,1102
On path.
In addition, in the inner side of magnet 1101,1102（The side of lens holder 7）In the magnetic field of generation, produce from being disposed above
The magnetic line of force that magnet 1101a, 1102a of side advance towards magnet 1101b, the 1102b for being configured at lower side.On the other hand, exist
In the magnetic field that the outside of magnet 1101,1102 is produced, produce and be configured at from magnet 1101b, 1102b direction for being configured at lower side
The magnetic line of force that magnet 1101a, 1102a of upper side advance.
The road of the magnetic line of force in the magnetic field that coil 1401a, 1401b configuration are produced in the inner side for being formed in magnet 1101,1102
On footpath.In particular, the path of the magnetic line of force in the magnetic field of the inner side generation of magnet 1101,1102 is formed in by being fixed on lens holder
The yoke 13 of 7 periphery is controlled.In the magnet 1101a, 1102a, the magnet for being configured at lower side by being disposed above side
In the magnetic loop that 1101b, 1102b and yoke 13 are constituted, it is configured to the magnetic line of force increase reported to the leadship after accomplishing a task with coil 1401a, 1401b.
Producing like this under the situation in magnetic field, when flowing through electric current in coil 1401a, 1401b, in above-mentioned coil
Thrust is produced on 1401a, 1401b（Lorentz force）.By the thrust produced like this, lens holder 7 is along optical axis direction（Fig. 7
Z-direction shown in~Fig. 9）It is mobile.
For example, inboard towards nearby from the paper shown in Fig. 8, Fig. 9 when being flowed through in coil 1401a, 1401b upper side part
Side to（It in X-axis positive direction, Fig. 9 is Y-axis negative direction to be in Fig. 8）Electric current when, produce Z axis on coil 1401a, 1401b
Positive direction（Upper direction）Thrust.On the contrary, when being flowed through in coil 1401a, 1401b upper side part from paper nearby side court
Inboard direction（It is X-axis negative direction in Fig. 8, is Y-axis positive direction in Fig. 9）Electric current when, produce Z on coil 1401a, 1401b
Axle negative direction（Lower direction）Thrust.In this case, because magnet 1101,1102 is fixed on supporting member 6, thus with it is above-mentioned
Accordingly lens holder 7 is moved thrust along optical axis direction.
In lens driver 1, for example, by according to from the portable phone or number for carrying lens driver 1
The driving of the control unit of code camera is indicated to being controlled towards coil 1401a, 1401b magnitude of current being powered and towards being controlled
Thrust, moves up and down coil 1401a, 1401b to carry out its positioning.Thereby, it is possible to which coil 1401a, 1401b has been fixed
Lens holder 7 positioning, and can carry out being assembled in the positioning of the lenticular body of lens holder 7.In addition, present dynasty's coil
When 1401a, 1401b energization stop, lens holder 7 is by the magnetic force acted between magnet 1101,1102 and yoke 13
Return to neutral position（Initial position）.
When lens holder 7 is moved along optical axis direction like this, the ball that is arranged between supporting member 6 is being followed
1501st, lens holder 7 is moved in the state of 1502 contacts.Thereby, it is possible to reduce lens holder 7 along optical axis direction move when rub
Wipe, therefore, it is possible to make lens holder 7 swimmingly move.In particular, ball 1501,1502 is disposed in across lens support when overlooking
Two positions that the central portion of frame 7 leaves, therefore, it is possible to relative to supporting member 6 at two positions significantly left to lens
Bracket 7 is supported, so as to make lens holder 7 stably be moved along optical axis direction.In addition, supporting member 6 is when overlooking
With rectangular-shaped, above-mentioned ball 1501,1502 is disposed in the diagonal corresponding position with supporting member 6, therefore, it is possible to effectively
Using the corner part periphery for the supporting member 6 for easily becoming dead band, so as to make the dress on the direction orthogonal with optical axis direction
Put the compact in size of main body.
In addition, in lens driver 1, constituting the coil for the travel mechanism for making lens holder 7 be moved along optical axis direction
1401a, 1401b and yoke 13 are installed on lens holder 7, and the magnet 1101,1102 for constituting the travel mechanism is installed on supporting
Part 6.Therefore, compared with above-mentioned magnet 1101,1102 is installed on the situation of lens holder 7, the light weight of lens holder 7 can be made
Change, lens holder 7 can be made swimmingly to move.
In particular, in lens driver 1, yoke 13 is made up of conductive single part, and the yoke 13 is pacified
Loaded on lens holder 7, and it is connected with yoke 13 coil 1401a, 1401b one end.Thus, as to coil 1401a,
1401b power supply path can utilize yoke 13, therefore, it is possible to carry out electricity to coil 1401a, 1401b with simple structure
Power is supplied.
In addition, as described above, coil 1401a, 1401b other end connect with being fixed on the metal parts 5 of supporting member 6
Connect.Messenger wire 4, metal parts 5 to above-mentioned coil 1401a, 1401b electric current via solder in downside FPC3 are supplied.So,
In lens driver 1, above-mentioned messenger wire 4 and metal parts 5 are regard as the power supply path to coil 1401a, 1401b
It is used, therefore the special structure of need not have just can carry out electric power confession with simple structure to coil 1401a, 1401b
Give.
On the other hand, producing as described above under the situation in magnetic field, when flowing through electric current in coil 1201,1202,
Thrust is produced on above-mentioned coil 1201,1202（Lorentz force）.By the thrust produced like this, supporting member 6 along with
The swing of messenger wire 4 and X-direction and Y direction shown in Fig. 8, Fig. 9 are moved.
For example, working as the X-axis negative direction flowed through in coil 1202a, 1202b inboard portion shown in Fig. 8（From paper nearby
Side inwardly side to）Electric current when, on coil 1202a, 1202b produce Y-axis negative direction（Right direction shown in Fig. 8）Push away
Power.On the contrary, working as the X-axis positive direction flowed through in coil 1202a, 1202b inboard portion shown in Fig. 8（It is inboard towards near from paper
Front side direction）Electric current when, on coil 1202a, 1202b produce Y-axis positive direction（Left direction shown in Fig. 8）Thrust.It is right
In coil 1201a, 1201b shown in Fig. 9 be also identical.In this case, coil 1201,1202 be fixed on downside FPC3,
Upside FPC9, therefore accordingly supporting member 6 is moved along the direction orthogonal with optical axis direction with above-mentioned thrust.
In lens driver 1, for example, by according to from the portable phone or number for carrying lens driver 1
The driving of the control unit of code camera indicates to the magnitude of current that is powered towards coil 1201,1202 and controls to push away towards being controlled
Power, makes magnet 1101,1102 move along the direction orthogonal with optical axis direction to carry out its positioning.Thereby, it is possible to carry out supplying magnet
1101st, the positioning of 1102 supporting members 6 fixed, and can carry out being supported on the lens holder 7 of the supporting member 6 and determine
Position.In addition, when the energization of present dynasty's coil 1201,1202 stops, supporting member 6 is returned to initially by the elastic force of messenger wire 4
Position.
As described above, involved by present embodiment in lens driver 1, dual-purpose supply make lens
Bracket 7 move magnetic force and supply make supporting member 6 move magnetic force magnet 1101,1102, and above-mentioned magnet 1101,
1102 are configured at the direction orthogonal with the optical axis direction of lens holder 7（X-direction and Y direction shown in Fig. 8, Fig. 9）'s
The periphery of side, therefore, there is no need to ensuring as the situation for clipping the configuration a pair of magnet of lens holder 7 in lens holder 7
Both sides configure the space of a pair of magnet.Thereby, it is possible to make the small size of the apparatus main body on the direction orthogonal with optical axis direction
Change.
In addition, in lens driver 1, making in an initial condition by between magnet 1101,1102 and yoke 13
Lens holder 7 is maintained at the neutral position of the optical axis direction of supporting member 6 by magnetic force.Make lens support thereby, it is possible to shorten
Frame 7 is moved to the side of optical axis direction（Upper side）Or opposite side（Lower side）Extreme position when displacement, therefore
The magnitude of current required when moving lens holder 7 can be reduced.
And then, in lens driver 1, make in an initial condition by between magnet 1101,1102 and yoke 13
Lens holder 7 is maintained at the neutral position of the optical axis direction of supporting member 6 by magnetic force, therefore, there is no need to be used to make lens
Bracket 7 returns to the special construction of neutral position, therefore, it is possible to suppress the parts number of constituent apparatus main body.It is additionally, since
Being sized and configured to for yoke 13 on optical axis direction is shorter than the size of magnet 1101,1102, thus can from magnet 1101,
The scope configuration yoke 13 that relatively strong magnetic force among 1102 magnetic fields produced is fed through to, therefore, it is possible to be incited somebody to action with high-precision
Lens holder 7 is configured in the neutral position of the optical axis direction of keeping body.
And then, in lens driver 1, sheet metal 602 is embedded with supporting member 6, for making supporting member 6
Sheet metal 602 is clipped along 2 groups of magnet 1101,1102 that the direction orthogonal with optical axis direction is moved in optical axis direction arrangement to match somebody with somebody
If.Thereby, it is possible to ensure the magnetic force for moving supporting member 6, supporting member 6 can be made suitable along the direction orthogonal with optical axis direction
It is freely mobile.It is additionally, since embedded sheet metal 602 and constitutes supporting member 6, so can have supporting member 6 is used for
The intensity of 2 groups of magnet 1101,1102 is kept, and is able to ensure that the free degree of the design of supporting member 6.Thus, even if for example,
In the case of being connected in one end of messenger wire 4 with supporting member 6, becoming large-sized for supporting member 6 can be also avoided, and being capable of shape
Into the coupling part.
In addition, the present invention is not limited to above-mentioned embodiment, various changes can be carried out and be carried out.In above-mentioned reality
Apply in mode, size and shape illustrated in accompanying drawing etc. is not limited to this, can be in the range of the effect of the present invention be played
Appropriate change.In addition, the scope without departing from the purpose of the present invention just can suitably be changed and is carried out.
For example, in the above-described embodiment, to being sized and configured to than magnet 1101,1102 for the yoke 13 on optical axis direction
Equidirectional on the short situation of size be illustrated.But, the size for the yoke 13 on optical axis direction is not limited
Due to this, can suitably it be changed.With in the state of being fixed on lens holder 7 in yoke 13 can supporting member 6 light
Premised on neutral position configuration lens holder 7 on direction of principal axis, arbitrary size can be used.But, from supporting member 6
Neutral position on optical axis direction is accurately configured from the viewpoint of lens holder 7, preferably by the yoke 13 on optical axis direction
The size being sized and configured to below the size of magnet 1101,1102.
In addition, in the above-described embodiment, to by ball 1501,1502 in the way of clipping the central portion of lens holder 7
It is disposed in and is illustrated with the situation of the diagonal corresponding position of supporting member 6.But, for matching somebody with somebody for ball 1501,1502
Put and be not limited to above-mentioned position, can suitably be changed.For example, it is also possible to by above-mentioned ball 1501,1502 be disposed in
Two positions left in circumference of the diagonal different lens holder 7 of supporting member 6.Even if in this case, also can be by
Lens holder 7 is supported on supporting member 6 at two positions that its circumference is left, therefore, it is possible to ensure stability and can make
Mirror bracket 7 is moved along optical axis direction.However, it is preferred to which the position for arranging ball 1501,1502 is set to clip in lens holder 7
Two positions in centre portion.
And then, in the above-described embodiment, to constituting yoke 13 using single part, and using the yoke 13 as to coil
The situation that 1401a, 1401b power supply path are used is illustrated.But, for the structure and work(of yoke 13
This can be not limited to, can suitably be changed.For example, also yoke 13 can be constituted using multiple parts.In addition it is also possible to
Form the structure being used not as the power supply path to coil 1401a, 1401b.
Similarly, in the above-described embodiment, to messenger wire 4 to be used as to the power supply path to coil 1401a, 1401b
Situation about being used is illustrated.But, the function for messenger wire 4 is not limited to this, can suitably be changed.
The structure being used not as the power supply path to coil 1401a, 1401b can be formed.
And then, in the above-described embodiment, pair in order that supporting member 6 is moved and had along the direction orthogonal with optical axis direction
Standby two pairs of magnet 1101（1101a、1101b）、1102（1102a、1102b）Situation be illustrated.But, driven for lens
The structure for the magnet that dynamic device 1 possesses is not limited to this, can suitably be changed.For example, it is also possible to possess with
Two pairs of magnet 1101（1101a、1101b）、1102（1102a、1102b）The single magnet of identical function.
Claims (9)
1. a kind of lens driver, possesses：Keeping body, with the lens holder that can keep lenticular body and makes the lens
The 1st travel mechanism that bracket is moved along optical axis direction；And the 2nd travel mechanism, make the keeping body along with optical axis direction just
Hand over and the 1st direction mutually reported to the leadship after accomplishing a task and the movement of the 2nd direction, the 1st travel mechanism, which possesses, is configured at the lens holder
Around the 1st coil and magnet, the lens driver is characterised by,
The periphery folder of side on the periphery and the 2nd direction of side on the 1st direction of the lens holder
The yoke for being arranged at the lens holder and be respectively fixed with the 1st coil, also, be opposed to point with the 1st coil
The magnet is not equipped, it is arranged opposite in the state of being left across the magnet in optical axis direction to have the 2nd coil, the magnetic
Iron and the 2nd coil constitute the 2nd travel mechanism,
Not under the original state of the 1st coil electricity, by the magnetic force acted between the magnet and the yoke
By the neutral position of lens holder holding in the direction of the optical axis.
2. lens driver as claimed in claim 1, it is characterised in that
Below the size being sized and configured on the optical axis direction of the corresponding magnet of the yoke on optical axis direction
Size.
3. lens driver as claimed in claim 1, it is characterised in that
The keeping body has the supporting member set for the magnet, matches somebody with somebody between the lens holder and the supporting member
Provided with ball, by the magnetic force, the ball is clamped between the lens holder and the supporting member, also, institute
Stating lens holder can move relative to the supporting member along optical axis direction.
4. lens driver as claimed in claim 3, it is characterised in that
The ball is to be disposed in left in circumference the two of the lens holder in the way of clipping the central portion of the lens holder
Individual position.
5. lens driver as claimed in claim 4, it is characterised in that
The supporting member has rectangular-shaped when overlooking, and the ball is disposed in the diagonal corresponding position with the supporting member
Put.
6. the lens driver as any one of claim 1 to 5, it is characterised in that
The yoke is made up of single part, and the yoke is installed on the lens holder, also, is connected with respectively in the yoke
One end of individual 1st coil.
7. the lens driver as any one of claim 3 to 5, it is characterised in that
The lens driver possesses the messenger wire for supporting the keeping body in the way of it can move, the messenger wire by with
The metal material of electric conductivity is constituted, also, the messenger wire one end via be fixed on the supporting member by conductive material structure
Into metal parts be connected with the supporting member.
8. the lens driver as any one of claim 3 to 5, it is characterised in that
Nonmagnetic sheet metal is embedded with the supporting member, for making the keeping body be moved along the 1st direction
One group of magnet clip the sheet metal and arranged in optical axis direction and arrange, also, for making the keeping body along the 2nd side
The sheet metal is clipped to another group of mobile magnet to arrange in optical axis direction arrangement.
9. the lens driver as any one of claim 1 to 5, it is characterised in that
1st coil is bundled into the tabular extended along optical axis direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-031269 | 2013-02-20 | ||
| JP2013031269A JP2014160195A (en) | 2013-02-20 | 2013-02-20 | Lens driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103995414A CN103995414A (en) | 2014-08-20 |
| CN103995414B true CN103995414B (en) | 2017-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410018146.9A Active CN103995414B (en) | 2013-02-20 | 2014-01-15 | Lens driver |
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| Country | Link |
|---|---|
| JP (1) | JP2014160195A (en) |
| CN (1) | CN103995414B (en) |
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| US11982865B2 (en) | 2018-09-27 | 2024-05-14 | Nidec Sankyo Corporation | Unit with shake correction function |
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| CN105635549A (en) * | 2016-04-01 | 2016-06-01 | 信利光电股份有限公司 | Camera module motor, camera module and electronic device |
| US10983303B2 (en) * | 2016-05-10 | 2021-04-20 | Lg Innotek Co., Ltd. | Lens driving device, camera module, and portable device |
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| JP7186047B2 (en) * | 2018-09-27 | 2022-12-08 | 日本電産サンキョー株式会社 | Unit with anti-shake function |
| US11347074B2 (en) * | 2018-11-30 | 2022-05-31 | Nidec Sankyo Corporation | Optical unit having shake correction function |
| JP2022070282A (en) * | 2019-03-08 | 2022-05-13 | アルプスアルパイン株式会社 | Lens drive device and camera module |
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| JP2022024931A (en) * | 2020-07-28 | 2022-02-09 | アルプスアルパイン株式会社 | Lens holder driving device |
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| JP2014160195A (en) | 2014-09-04 |
| CN103995414A (en) | 2014-08-20 |
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