CN104820272B - Lens driver, automatic focusing camera and the mobile terminal apparatus with camera - Google Patents
Lens driver, automatic focusing camera and the mobile terminal apparatus with camera Download PDFInfo
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- CN104820272B CN104820272B CN201510266707.1A CN201510266707A CN104820272B CN 104820272 B CN104820272 B CN 104820272B CN 201510266707 A CN201510266707 A CN 201510266707A CN 104820272 B CN104820272 B CN 104820272B
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- coil
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- magnetite
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- lens supports
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
The present invention provides simple in construction, lens supports physical efficiency and moves and rock the mobile lens driver of correction, automatic focusing camera and the mobile terminal apparatus with camera to optical axis direction.The 1st coil 19 on the periphery of lens supports body 5 its plane in terms of the side of optical axis direction is in square shape；2nd coil 16a~16d is separated by 90 degree of interval configurations on the periphery of lens supports body with circumferential direction, and while configuration on the dimetric side that the 1st coil is constituted, sees annular in shape on the outside of the footpath direction of lens supports body 5.1st magnetite 17 in each side of dimetric 1st coil 19 with being arranged oppositely, and inner peripheral surface makes same pole simultaneously, on the position that the 2nd coil 16a~16d is set with the 2nd coil 16a~16d to.Lens supports body is powered when being moved to optical axis direction to the 1st coil 19.When being moved to X Y-directions, to set the 2nd coil 16a~16d on lead to upper certain electric current.
Description
This case be Application No. " 201210043428.5 ", the applying date be " on 2 24th, 2012 ", it is entitled " lens drive
The divisional application of the application for a patent for invention of dynamic device, automatic focusing camera and the mobile terminal apparatus with camera ".
Technical field
The present invention is the mobile terminal dress of a kind of related lens driver, auto-focusing camera and having camera
Put.
Background technology
Patent document 1 (patent is disclosed on JP2002-373435 publications) discloses one kind and is related to daylighting execution
Device, with 90 degree is interval with the coil annular in shape in terms of outer circumferential side, in lens supports body in the outer peripheral face circumferential direction of lens supports body
Footpath direction on the outside of be configured with each coil be in the magnetite to position, by making lens supports body to optical axis to coil electricity
Direction (focus direction) and traffic direction (X-direction) are mobile.
On the other hand, in minicam, lens supports body is only moved to optical axis direction, for rocking correction, X-Y directions
On when moving it, move integrally lens driver by the motor driven to X-direction and the motor driven to Y-direction.
In lens driver on minicam, to lens supports body optical axis direction (Z-direction) movement and X-Y
The movement only mobile lens supporter in direction (rocking correction) is come in the past to carry out this point be that there have been no.
Even if in addition, can be realized to the movement of lens supports body optical axis direction using the technology of patent document 1, but specially
The technology of sharp document 1 can only be provided to be moved to X-direction, and rocking correction (movement in X-Y directions, i.e. optical axis orthogonal face) then can not be real
It is existing.
The content of the invention
Therefore, it is an object of the present invention to provide a kind of drive of the lens of raising for the optical axis direction thrust that can realize lens supports body
Dynamic device, auto-focusing camera and the mobile terminal apparatus with camera.
To realize the lens driver of the purpose, have：The lens supports body of lens is supported in inner circumferential；
The 1st coil for winding and being fixed on lens supports external week；
Lens supports body is freely moved to the yoke as a fixed body part of support on inner circumferential side；
It is arranged on the 1st magnetite on fixed body；And
Front side spring and rear side spring；
Yoke has front side wall, and it is slightly in square shape that its profile is seen on front side of optical axis direction, and yoke is along corner
The profile of shape is provided with outer peripheral sidewall；
There is front side spring inner periphery side portion to be fixed on the front end of lens supports body, and periphery sidepiece is fixed on before yoke
A part for fixed body, wrist connection periphery sidepiece and inner periphery side portion are formed between side wall and the 1st magnetite；
There is rear side spring inner periphery side portion to be fixed on the rear end of lens supports body, and periphery sidepiece is fixed on base and formed
A part for fixed body, wrist connection periphery sidepiece and inner periphery side portion；
1st coil its plane in terms of the side of optical axis direction is in square shape；
1st magnetite is formed in tabular magnetite, and each side of each tabular magnetite to dimetric 1st coil is opposite, each tabular
Magnetite configures the inner face in the outer peripheral sidewall of dimetric yoke；
The slightly cylindrical shape of lens supports body, and the tangential direction of all planes set in 4 places of its periphery
On smooth fixed part, fixed 1st coil.
The further feature of the lens driver is, on yoke, corresponds to the corner of the 1st coil, provided with positioned at
The madial wall of the inner circumferential side of 1st coil.
To realize that the feature of the auto-focusing camera of the purpose is, with the foregoing lens driver arbitrarily recorded
With the sensor being arranged on the lens imaging side of lens supports body.
Feature for the mobile terminal apparatus for the having camera for realizing the purpose is be equipped with foregoing description automatic
Focusing camera.
Called mobile terminal device, what is said is mobile phone, information carried terminal (PDA), notebook computer etc..
Lens driver historically, movement from lens supports body to focusing direction (optical axis direction), according to the 1st
The thrust in lens axis direction produced between magnetite after coil electricity, lens supports, which are known from experience to optical axis direction, moves
It is dynamic.It is then the radius side by the lens supports body to produced by after arbitrary 2nd coil electricity between magnetite to rock correction
To thrust, lens supports body can then move to X-Y directions.Thus, lens supports body can be achieved with focusing movement
And rock correction movement.
Magnetite is used as optical axis direction movement with the movement of X-Y directions.By 1 the 1st coil and the coil of at least two the 2nd,
Lens supports body can be achieved with to optical axis direction and the movement of X-Y directions, be constituted and a small amount of component points with easy, just can be real
Correction is moved and rocked in the focusing of existing lens supports body.
The side of 1st coil of magnetite and square shape is relative to the configuration, so simple structure can be realized using plate object.
1st coil in terms of the side of optical axis direction in dimetric ring-type, due to corresponding to the dimetric each side of the 1st coil
Magnetite is provided with position, so compared with the 1st coil to be made to the occasion of circle, the interval of the 1st coil and magnetite can
Keep certain, and can obtain relative broad range to area, the optical axis direction thrust of lens driver can be improved.
Similarly, since the 2nd coil configuration is on the side of the 1st coil of square shape, so the 1st coil is made into circle with it
The situation of shape compares, and the interval between magnetite can keep certain, and can obtain relative broad range to area.
According to described lens driver, because its outer peripheral sidewall has been made square shape by yoke, in its inner circumferential side
On the 1st magnetite can be embedded in assembling, so easy to manufacture.
In addition, the magnetic flux that can reduce magnetite by yoke is revealed, it is possible to increase optical axis direction and X-Y directions are pushed away
Power.
According to described lens driver, on the corner of the 1st magnetite of corner ring-type, due to the inner side by yoke
Wall and outer peripheral sidewall clamp the 1st magnetite, the 1st coil and the 2nd coil.So, corner magnetic density can be improved, further
Improve the thrust for acting on the 1st coil and the 2nd coil.In addition, around the entirety of the 1st coil and the 2nd coil, generation can be acted on
Go out slightly homogeneous thrust.
According to described lens driver, on each corner of the 1st magnetite, there is the 2nd magnetite in its inner circumferential side, can carry
The 1st coil and the magnetic flux of the 2nd coil and the thrust in raising optical axis direction and X-Y directions that height is acted on yoke corner.
Brief description of the drawings
【Fig. 1】The exploded perspective view of the lens driver of related 1st embodiment.
【Fig. 2】It is a kind of lens driver of related 1st embodiment, is the A-B sectional views shown in Fig. 5.
【Fig. 3】It is the horizontal sectional view in the main portion of the lens driver of related 1st embodiment.
【Fig. 4】Medelling shows the schematic diagram that K portions are acted in Fig. 3.
【Fig. 5】The lens driver of related 1st embodiment is from the plan in terms of front side.
【Fig. 6】It is relevant to the exploded perspective view of the 2nd embodiment lens driver.
【Fig. 7】On the A-C positions illustrated in Fig. 5 of the 1st embodiment, the related lens of the 2nd embodiment are driven
Device block after sectional view.
【Fig. 8】The exploded perspective view of the lens driver of related 3rd embodiment.
【Fig. 9】On the A-C positions shown by Fig. 5 in the 1st embodiment, the related lens of the 3rd embodiment are driven
Device blocks rear shown sectional view.
1 lens driver
3 yokes
3a outer peripheral sidewalls
3b madial walls
3d front side walls
5 lens supports bodies
The coils of 16a~16d the 2nd
17 the 1st magnetites
19 the 1st coils
27 the 2nd coils
Embodiment
The embodiment of the present invention is illustrated below with reference to annex.First, with reference to Fig. 1~Fig. 5 in annex drawing,
The 1st embodiment to the present invention is described in detail.The lens driver 1 of this related embodiment is to be assembled into mobile phone
In auto-focusing camera a kind of lens driver.
In this lens driver 1, as shown in figure 1, in inner circumferential will support lens (not shown) lens supports body 5,
Lens supports body 5 is freely moved to the yoke 3 a part of as fixed body of support on inner circumferential side, in the inner circumferential of yoke 3
On, by front side pad (insulation material) 7, front side spring 9, the 1st magnetite 17, rear side pad 15 (insulation material), rear side spring 11, terminal
After portion's material 18 is accumulated successively, firm banking 8.Anticipate as shown in Figures 1 and 2, coil case 4 is fixed in lens supports body 5
Front side spring 9 and rear side spring 11, are fixed on front side portion and rear lateral portion by periphery respectively.
As shown in Figures 1 and 5, the front side wall 3d of yoke 3 its profile in terms of front side is in slightly square shape, along square shape
Profile, be provided with outer peripheral sidewall 3a.The opening portion 2 of configuration lens supports body 5 is arranged on the central part of yoke 3.
As shown in Figures 1 and 2, front side pad 7 is connected to front side wall 3d, is accommodated into the inner circumferential side of yoke 3.As it was previously stated,
On the rear side of front side pad 7, front side spring 9, the 1st magnetite 17, rear side pad 15, rear side spring 11, portion of terminal material 18 and bottom
Seat 8 is fixed successively, forms fixed body.
1st magnetite 17 its plane in terms of front side is in corner ring-type, in this embodiment, 4 formation frames of tabular magnetite 14
Frame.The magnetic pole of the inner circumferential side of each tabular magnetite 14 is made identical.For example, inner circumferential side is made into N poles, outer circumferential side is made into S poles.Respectively
Tabular magnetite 14 configures the inner face in the outer peripheral sidewall 3a of yoke 3.
As shown in figure 1, the slightly cylindrical shape of lens supports body 5.All planes for being set in 4 places of its periphery are cut
On the smooth fixed part 5a in line direction, fixed coil case 4.By fixed coil case 4 it is by the periphery of lens supports body 5
1 coil 19 and the 2nd coil 16a, 16b, 16c, 16d are constituted.
17 pairs of 1st coil 19 and the 1st magnetite are to configuration is on the inner circumferential side of the 1st magnetite 17, in 4 square ring shapes.
Further, 4 the 2nd coil 16a~16d are configured in each edge of four square rings on the periphery of the 1st coil 19.Respectively
2nd coil 16a~16d is on the outside of the radial direction of lens supports body 5, and side is annular in shape.Along each longer sides of the 1st coil 19
Configured in one piece.
Each 2nd coil 16a~16d overlaps on the lateral surface of the 1st coil 19, by the front side edge on front side of optical axis direction
Portion 22, the rear side edge 25 of rear side and left and right side portion 24,26 are overlapped in one side of the 1st coil 19.
1st magnetite 17 is arranged on the 2nd coil 16a~16d opposite, and the inner circumferential side 17a of the 1st magnetite 17 is configured the 2nd
Coil 16a~16d the opposite of each edge 22,24,25,26.The size on one side of the 1st magnetite 17 of square shape is with the 2nd coil
16a~16d circumferential direction size is slightly identical, while the inner circumferential side 17a of the 1st magnetite 17 area and the 2nd coil 16a on opposite
~16d area is also slightly identical.
In addition, constitute the 1st magnetite 17 each tabular magnetite 14 intervention to the 2nd coil 16a~16d after, with the 1st line
Circle 19 pairs to.In the form of this implementation, the 1st magnetite 17 in its circumferential direction on the whole, with respect to the 1st coil 19 and the 2nd coil 16a
~16d to.
2nd coil 16a~16d is as shown in figure 4, in the inner peripheral surface 17a of the 1st magnetite 17, the magnetic that (rear) sidepiece is sent in the past
Flux direction covers the part in (rear) direction with before inside radial direction.Further away from magnetite 17 inner peripheral surface 17a more forward (rear)
Lateral bend.That is, the direction of magnetic flux covers the inside of radial direction and the composition of fore-and-aft direction.
For example, from the point of view of front side, anticlockwise electric current I is fed to the 1st coil 191, giving inside radial direction
Giving after interlinkage flux composition will produce to the thrust in front of optical axis direction according to Fleming, John Ambrose rule.Lens supports body 5 will be to
Optical axis direction is moved.See from the outside, anticlockwise electric current I is once fed to the 2nd coil 16a2, each 2nd coil 16a's
The interlinkage flux composition at (rear) in front of optical axis direction can be then given in front side edge 22 (rear side edge 25), in radial direction
Portion produces thrust.Therefore, to make the 2nd coil 16a to moving inside radial direction, lens supports body 5 is moved.2nd coil
16b~16d is also identical.
That is, the 2nd coil 16a, 16c is in the magnetic line of force of magnetite 17, according to being orthogonal on the 2nd coil 16a, 16c composition
Magnetic force and the electric current flowed on the 2nd coil 16a, 16c, by Fleming, John Ambrose lefft-hand rule, as shown in figure 3, thrust X acts on lens
On the radial direction of supporter 5, the 2nd coil 16b, 16d is also same, and thrust Y acts on the radial direction of lens supports body 5
On.Thrust X and thrust Y are mutually orthogonal.
As shown in figure 3, the 1st coil 19 is connected on Z drive divisions 32, the 2nd each coil 16a~16d is connected X-Y drives
In dynamic portion 33, the electric current of certain value is passed to from each drive division 32,33.In addition, on Fig. 3, being driven with the Z represented by dotted line
Connecting line between the coil 19 of portion 32 and the 1st between connecting line and the coil 16a of X-Y drive divisions 33 and the 2nd~16d, expression is only
It is the connection of electric current input or output.
In this embodiment, the 2nd coil 16a and 16c, 16b and 16d are to be connected in series.Coil 16a and 16c is to thrust X
Direction, 16b and 16d drive to thrust Y-direction.
For example, on Z drive divisions 32, when lens supports body 5 is moved to focusing position, electric current is passed to the 1st coil 19
Value Z.
Equally, correction occasion is rocked, stream X is electrified to the 2nd coil 16a and 16c by X-Y drive divisions 33, makes lens branch
Support body 5 is moved in the X direction.Stream Y is electrified on the 2nd coil 16b and 16d, lens supports body 5 is moved to Y-direction.According to
This, lens supports body 5 carries out rocking correction after moving to X-Y directions.
Even, among Fig. 2 and Fig. 4, show according to symbols Z, X, Y institute galvanization, produced thrust direction and big
It is small.The direction of display is that Z is optical axis direction, and X and Y are the two-dimensional directional orthogonal with each optical axis direction.
As shown in figure 1, front side spring 9 be assembling before nature be tabular.It is by constituting plane corner ring-type
Periphery sidepiece 9a, configuration outer circumferential side portion 9a inner circumferentials plane in circular shape inner circumferential side 9b and connection periphery sidepiece 9a and
Inner periphery side portion 9b 4 wrist 9c are constituted.Comfortable it can be deformed in Z-direction and X-Y directions.
The nature of rear side spring 11 before assembling is tabular.It is the periphery sidepiece by constituting plane corner ring-type
11a, configuration are in inner circumferential side 11b and connection periphery sidepiece 11a and the inner circumferential side of circular shape in the plane of outer circumferential side portion 11a inner circumferentials
Portion 11b 4 wrist 11c are constituted.
The periphery sidepiece 9a of front side spring 9 is clamped between the magnetite 17 of pad 7 and the 1st of front side, and inner circumferential side 9b is fixed
In the front end of lens supports body 5.The periphery sidepiece 11a of rear side spring 11 is clamped between base 8 and rear side pad 15.Inner circumferential
Sidepiece 11b is fixed on the rear end of lens supports body 5.Accordingly, lens supports body 5 is according to front side spring 9 and rear side spring 11, energy
Supported to the property of can move freely on optical axis direction (Z-direction) and X-Y directions.Rear side spring 11 is divided into 2 parts, quilt
One of segmentation is connected on the 1st coil 19 respectively with another, and DC current is passed through at rear side spring 11.
On the periphery sidepiece 9a of rear side spring 11, the portion of terminal material 18 with this summary same shape is overlapped with.From continuing outside
Electric current is fed directly on power supply terminal 18a in portion.
Then, according to the electric current being passed through to the 1st coil 19, lens supports body 5 is moved to optical axis direction front, lens
The electricity that supporter is produced between the precompression and the 1st coil 19 and magnetite 17 in the Z-direction of front side spring 9 and rear side spring 11
Stop in the equilibrium locations reached between magnetic force.
Lens supports body 5 is in the mobile occasion to X-Y directions, according to logical certain to set the 2nd coil 16a~16d
The electric current of value, spring on the X-Y directions of front side spring 9 and rear side spring 11 is made a concerted effort and the 2nd coil 16a~16d and each
Stop in the equilibrium locations reached between the electromagnetic force produced between corresponding 1st magnetite 17.
Next, to assembling, the functions and effects progress of the lens driver 1 being relevant in the embodiment of the present invention
Explanation.The assembling of lens driver 1 takes the lead in being to carry out the 2nd coil 16a~16d then on the outer peripheral face of the 1st coil 19
It is fixed, coil case 4 is formed, is fixed on fixed part set on the periphery in lens supports body 5.
The assembling of lens driver 1 by front side pad 7 on the inner circumferential side of yoke 3 as shown in figure 1, butt up against front side wall
Configured on 3d, then successively by front side spring 9, the 1st magnetite 17, pad 15, overlapping terminal on the rear side of front side pad 7
Fixed rear side spring 11 and base 8 are assembled after portion's material 18.
Then, by it is relative to coil 16a and 16c, 16b and 16d connected formed the 2nd coil 16a~16d,
By the coil case 4 being fixed on the 1st coil 19, by the lens supports body 5 secured after the rear side insertion of opening portion 2, by before
The inner circumferential side 9b of lateral spring 9 and the inner periphery side portion 11b of rear side spring 11 are fixed.Fixed form can for example be entered with solid
OK.
Then, after the assembling of lens driver 1 ends, the 1st coil 19 is connected on Z drive divisions 32, and the 2nd coil 16a~
16d is connected on X-Y drive divisions 33.
Shown in Fig. 2, the driving of the lens driver 1 of this related embodiment, Z drive divisions 32 are by from the rear end of base 8
The peak value for the radio-frequency component (contrast) that portrait sensor (not shown) place set on side is received is compared one by one, lens branch
Support body moves linearly to focal position to Z-direction.
When lens supports body 5 moves linearly to Z-direction, according to the current value Z being passed through on the 1st coil 19 and magnetite 17
Between produced by the same lateral spring 9 of electromagnetic force and rear side spring 11 precompression make a concerted effort stop in equilibrium locations.
In addition, the X-Y controls (rocking correction) of lens supports body 5, school is rocked according to gyro module reception X-Y directions
The high low signal of positive quantity, after being calculated to the rolling dynamic correction value of X-direction and Y-direction, determines lens supports body 5 respectively
Amount of movement X, Y.It is powered to the 2nd coil 16a, 16c and the 2nd coil 16b, 16d.
According to this embodiment, the focusing movement of lens supports body 5 is, by being powered to the 1st coil 19, lens supports body
Moved to optical axis direction, rock the electric current being corrected to the logical upper certain values of arbitrary 2nd coil 16a~16d, lens supports body 5
It will be moved to X-Y directions.Accordingly, it can be achieved with the focusing movement of lens supports body 5 and rock correction.
According to this embodiment, the 1st magnetite is doubled as the mobile magnetite for using and rocking correction of focusing.Pass through this 1st magnetic
Stone and 1 the 1st coil 19 and 4 the 2nd coil 16a~16d, can be achieved with lens supports body 5 and are moved to optical axis direction and X-Y directions
It is dynamic.
1st magnetite 17 and rise rock correction function the 2nd coil 16a~16d be configured in terms of front side plane in quadrangle
Each edge on, be thus provided with and rock correction function, at the same without carry with rock correction function lens driver,
It can be achieved with the compact construction of identical size and a small amount of component points.
1st magnetite 17 is configured to on the side in the 1st coil 19 of square shape, so plate object can be used, and structure
Into simple.
1st coil 19 is from the point of view of one side of optical axis direction, in tetragonal ring-type, in the corner corresponding to the 1st coil 19
On each side position of shape, the 1st magnetite 17 is provided with, the 1st coil 19 is made into circle so being compared to, can be achieved with the 1st line
The interval of circle 19 and magnetite 17 is made necessarily, and can obtain broader to area, so lens supports body 5 can be realized
The raising of optical axis direction thrust.
Equally, the 2nd coil 16a~16d is configured on the side of the 1st coil 19 of square shape, so the 1st coil 19 is done
Compare, can be made necessarily with the interval of magnetite 17 into circular occasion, and can obtain broader to area
Outer peripheral sidewall 3a is made quadrangle by yoke 3, is assembled after the 1st magnetite 17 is embedded on its inner circumferential side, so holding
Easily manufacture.In addition, according to yoke 3, the leakage of the magnetic flux of the 1st magnetite 17 can be reduced, it can realize the optical axis of lens supports body 5
Direction and the thrust in X-Y directions.
Hereinafter, other embodiments of the present invention are illustrated, it is real with the above-mentioned the 1st in the embodiment of following explanation
Apply the part that form plays identical action effect, represented with agreement symbol, omit the explanation of its part, it is main below to illustrate that
With the explanation of the 1st embodiment difference.
With reference to Fig. 6~Fig. 8, the lens driver 1 in the 2nd embodiment is illustrated.2nd embodiment herein
In, on the edge of the opening portion 2 of yoke 3, seen on front side of it on corner in dimetric yoke 3, from front side wall 3d to rear side
Direction is provided with the madial wall 3b being provided projectingly.The corner that madial wall 3b corresponds to yoke is set as 4, and each madial wall 3b's
Fixed 2nd magnetite 27 on outer circumferential side.In this 2nd embodiment and the 3rd embodiment described later, front side wall 3d is changed into connection
Outer peripheral sidewall 3a and madial wall 3b connection wall.
This 2nd magnetite 27 by with 17 pairs of the 1st magnetite to side make and 17 pairs of the 1st magnetite to the magnetic that differs of magnetic pole
Pole.In this embodiment, the inner circumferential side of the 1st magnetite 17 is N poles, and the 2nd magnetite 27 is that S poles, inner side are N poles.
In addition, madial wall 3b is the outer peripheral face along lens supports body 5, arc-shaped is made, the 2nd magnetite 17 is by medial surface edge
The madial wall for yoke makes arc-shaped, the mutually rectangular faces of outer peripheral sidewall 3a of the lateral surface along yoke 3.
According to this 2nd embodiment, in the corner of yoke 3, the madial wall that the 1st magnetite 17 and coil case 4 are passed through into yoke 3
3b and outer peripheral sidewall 3a clampings, so the magnetic density in the corner of yoke 3 can be improved, can further improve and act on composition line
1st coil 19 of circle body 4 and the 2nd coil 16a~16d thrust.In addition, whole around the 1st coil 19 and the 2nd coil 16a~16d
Body, can be acted on slightly homogeneous thrust.
Further, the 2nd magnetite 27 is arranged on each corner of yoke 3, can be improved and be acted on the 1st coil 19 and the 2nd coil
Magnetic flux on 16a~16d, can further improve the thrust of optical axis direction and X-Y directions.
With reference to Fig. 8 and Fig. 9, the lens driver 1 for being relevant to the 3rd embodiment is illustrated.The 3rd implements shape herein
In state, front side spring 9 and front side pad 7 are configured at the front side wall 3d of yoke 3 front side, by front side pad 7, front side spring 9, yoke
Iron 3, rear side pad 15, rear side spring 11 and base 8 are accommodated into magnetism shielding 29.
In addition, on yoke 3, the corner of coil case 4 is corresponded to, provided with the inner circumferential side positioned at the inner circumferential side of coil case 4
Wall 3b.Shapes of the madial wall 3b along the magnetite 17 of coil case 4 and the 1st, in the circumferential direction, the face of left and right 2 is rectangular.
In this 3rd embodiment, corresponding to the corner of coil case 4, madial wall is provided with the corner of yoke 3, so
The 1st coil 19 acted in the corner of yoke 3 and the 2nd coil 16a~16d magnetic flux can be improved.Optical axis direction can be improved
And the thrust in X-Y directions.
In addition, shielding 29 according to magnetism, it is therefore prevented that magnetic flux to outside leakage, so, reduce because magnetic flux is to week
The influence that the electronic equipment and electronic component on side are caused.
, may without departing from a variety of deformations are made in the range of main idea of the present invention the invention is not restricted to above-mentioned embodiment.
For example, the 2nd coil 16a~spaced 90 degree of 16d, adjacent setting 2 can also.
1st magnetite 17, is not limited to the framework of 4 tabular magnetites 14, is not required to framework, corresponding to 4 sides, can also be by tabular
Magnetite 14 is configured on 4 corresponding sides, it would however also be possible to employ the magnetite of 1 corner ring-shaped.
2nd coil 16a~16d can also be configured in the inner circumferential side of the 1st coil 19.
In 2nd and the 3rd embodiment, the inner circumferential side wall 3c of yoke 3 can also continuously be set around circumferential direction.
In the form of above-mentioned implementation, lens driver 1 possesses zoom lens, can also be with zoom function.
Claims (4)
1. lens driver, has：
The lens supports body of lens is supported in inner circumferential；
The 1st coil for winding and being fixed on lens supports external week；
Lens supports body is freely moved to the yoke as a fixed body part of support on inner circumferential side；
It is arranged on the 1st magnetite on fixed body；And
Front side spring and rear side spring；
Characterized in that,
Yoke has front side wall, and it is slightly in square shape that its profile is seen on front side of optical axis direction, and yoke is along square shape
Profile be provided with outer peripheral sidewall；
There is front side spring inner periphery side portion to be fixed on the front end of lens supports body, and periphery sidepiece is fixed on the front side wall of yoke
And the 1st part for forming fixed body between magnetite, wrist connection periphery sidepiece and inner periphery side portion；
There is rear side spring inner periphery side portion to be fixed on the rear end of lens supports body, and periphery sidepiece is fixed on base and forms fixation
A part for body, wrist connection periphery sidepiece and inner periphery side portion；
1st coil its plane in terms of the side of optical axis direction is in square shape；
1st magnetite is formed in tabular magnetite, and each side of each tabular magnetite to dimetric 1st coil is opposite, each tabular magnetite
Configure the inner face in the outer peripheral sidewall of dimetric yoke；
The slightly cylindrical shape of lens supports body, and the tangential direction of all planes set in 4 places of its periphery is smooth
On fixed part, fixed 1st coil.
2. lens driver as claimed in claim 1, it is characterised in that
On yoke, the corner of the 1st coil is corresponded to, provided with the madial wall positioned at the inner circumferential side of the 1st coil.
3. auto-focusing camera, it is characterised in that with the lens driver described in claim 1 or 2 and be arranged at
Sensor on the lens imaging side of mirror supporter.
4. the mobile terminal apparatus of having camera, it is characterised in that be equipped with the auto-focusing camera of claim 3 record.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011038628A JP2012173713A (en) | 2011-02-24 | 2011-02-24 | Lens drive device, autofocus camera and mobile terminal device with camera |
| JP2011-038628 | 2011-02-24 | ||
| CN201210043428.5A CN102650722B (en) | 2011-02-24 | 2012-02-24 | Lens driving device, auto-focusing camera, and mobile terminal device with camera |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210043428.5A Division CN102650722B (en) | 2011-02-24 | 2012-02-24 | Lens driving device, auto-focusing camera, and mobile terminal device with camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104820272A CN104820272A (en) | 2015-08-05 |
| CN104820272B true CN104820272B (en) | 2017-09-29 |
Family
ID=46692758
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200637707U Withdrawn - After Issue CN202472098U (en) | 2011-02-24 | 2012-02-24 | Lens driving device, automatic focusing camera and mobile terminal device with camera |
| CN201210043428.5A Active CN102650722B (en) | 2011-02-24 | 2012-02-24 | Lens driving device, auto-focusing camera, and mobile terminal device with camera |
| CN201510266707.1A Active CN104820272B (en) | 2011-02-24 | 2012-02-24 | Lens driver, automatic focusing camera and the mobile terminal apparatus with camera |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200637707U Withdrawn - After Issue CN202472098U (en) | 2011-02-24 | 2012-02-24 | Lens driving device, automatic focusing camera and mobile terminal device with camera |
| CN201210043428.5A Active CN102650722B (en) | 2011-02-24 | 2012-02-24 | Lens driving device, auto-focusing camera, and mobile terminal device with camera |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2012173713A (en) |
| CN (3) | CN202472098U (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012173713A (en) * | 2011-02-24 | 2012-09-10 | Shicoh Engineering Co Ltd | Lens drive device, autofocus camera and mobile terminal device with camera |
| JP2013033186A (en) * | 2011-07-01 | 2013-02-14 | Shicoh Engineering Co Ltd | Lens drive device, autofocus camera and portable terminal device |
| US20140179371A1 (en) * | 2012-12-12 | 2014-06-26 | Somasundaram Ramkumar | Electronic Camera Comprising Mobile Phone Apparatus |
| KR101498356B1 (en) * | 2013-03-14 | 2015-03-11 | 엘지이노텍 주식회사 | Lens actuator |
| JP5765362B2 (en) * | 2013-04-11 | 2015-08-19 | Tdk株式会社 | Lens holding device |
| JP5765361B2 (en) * | 2013-04-11 | 2015-08-19 | Tdk株式会社 | Lens holding device |
| CN106062605A (en) | 2013-10-04 | 2016-10-26 | 郑国星 | Lens driving apparatus |
| TWI468769B (en) | 2013-12-11 | 2015-01-11 | Tdk Taiwan Corp | An apparatus having a spring plate connecting with 3d circuit terminals |
| CN103728712A (en) * | 2013-12-30 | 2014-04-16 | 上海比路电子有限公司 | Lens driving motor structure |
| CN104914547A (en) * | 2015-06-18 | 2015-09-16 | 河南省皓泽电子有限公司 | Novel voice coil motor lens driving device |
| KR20170141523A (en) * | 2016-06-15 | 2017-12-26 | 자화전자(주) | Actuator for ois with integral yoke |
| CN108931875B (en) * | 2017-05-27 | 2023-09-29 | 新思考电机有限公司 | Biaxial tilting movement device, photographing device, optical device, and electronic apparatus |
| CN109143721B (en) * | 2017-06-27 | 2024-03-15 | 新思考电机有限公司 | Tilting device for optical component, imaging device, optical device, and electronic apparatus |
| CN115167062A (en) * | 2022-06-24 | 2022-10-11 | 东莞华贝电子科技有限公司 | Lens anti-shake assembly, anti-shake device and electronic equipment |
| WO2024014714A1 (en) * | 2022-07-15 | 2024-01-18 | 엘지이노텍 주식회사 | Lens driving device, camera device and optical device |
| KR20240043544A (en) * | 2022-09-27 | 2024-04-03 | 엘지이노텍 주식회사 | A lens driving device, a camera device and an optical apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202472098U (en) * | 2011-02-24 | 2012-10-03 | 思考电机（上海）有限公司 | Lens driving device, automatic focusing camera and mobile terminal device with camera |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4774873B2 (en) * | 2005-08-30 | 2011-09-14 | 日立金属株式会社 | Actuator |
| JP5504517B2 (en) * | 2009-08-17 | 2014-05-28 | 新シコー科技株式会社 | Lens drive device, autofocus camera and camera phone |
-
2011
- 2011-02-24 JP JP2011038628A patent/JP2012173713A/en not_active Withdrawn
-
2012
- 2012-02-24 CN CN2012200637707U patent/CN202472098U/en not_active Withdrawn - After Issue
- 2012-02-24 CN CN201210043428.5A patent/CN102650722B/en active Active
- 2012-02-24 CN CN201510266707.1A patent/CN104820272B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202472098U (en) * | 2011-02-24 | 2012-10-03 | 思考电机（上海）有限公司 | Lens driving device, automatic focusing camera and mobile terminal device with camera |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202472098U (en) | 2012-10-03 |
| CN104820272A (en) | 2015-08-05 |
| JP2012173713A (en) | 2012-09-10 |
| CN102650722B (en) | 2015-05-13 |
| CN102650722A (en) | 2012-08-29 |
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