CN104570270B - Lens driver, photographic means and electronic equipment - Google Patents
Lens driver, photographic means and electronic equipment Download PDFInfo
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- CN104570270B CN104570270B CN201410568246.9A CN201410568246A CN104570270B CN 104570270 B CN104570270 B CN 104570270B CN 201410568246 A CN201410568246 A CN 201410568246A CN 104570270 B CN104570270 B CN 104570270B
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- carrier
- sphere
- lens
- collar extension
- support
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Linear Motors (AREA)
Abstract
The lens driver of the present invention, has：Support the carrier of lens；It can make above-mentioned carrier to the carrier support of above-mentioned lens axis direction movement configuration；Relatively above-mentioned carrier support, the drive division that above-mentioned carrier is driven to above-mentioned lens axis direction；The radial direction centered on above-mentioned lens axis to two at, be separately installed with sphere between the outer circumferential side of above-mentioned carrier and above-mentioned carrier support inner circumferential side.After above-mentioned sphere is applied in opposite direction or same direction power, above-mentioned carrier is supported between the inner circumferential side for the above-mentioned carrier support being connected to each other with above-mentioned sphere.The present invention also provides photographic means and electronic equipment including the lens driver.
Description
Technical field
The present invention relates to a kind of lens driver, and it is small-sized automatic to be applied to such as mobile phone more particularly to one kind
Lens driver on focusing camera and electronic equipment with camera-enabled.It has further related to a kind of with lens driving
The camera and electronic equipment of device.
Background technology
Electronic equipment especially for the small-sized auto-focusing camera such as mobile phone and with camera, makes all the time
Be in a manner of voice coil motor (VCM) based on lens driver.By said lens driving device, make support lens
Carrier is focused to lens axis direction etc. movement and zoom.
All the time, to realize the purpose for enabling above-mentioned carrier to stablize the optical axis direction for being moved to said lens, to such
Lens driver has made all kinds of motions (1~patent document of patent document 6).
These motions include：Guide part is configured to guide carrier to be moved to lens axis direction；Configure carrier and carrier branch
Rotatable sphere guides the carrier to be moved along lens axis direction between support body.
【Patent document 1】Patent publication No. 2008-40188 publications
【Patent document 2】Patent publication No. 2010-97216 publications
【Patent document 3】Patent publication No. 2011-197626 publications
【Patent document 4】Patent publication No. 2013-68828 publications
【Patent document 5】Patent publication No. 2013-76910 publications
【Patent document 6】Patent publication No. 2013-148699 publications
The content of the invention
【Invention is by the problem of solution】
A kind of lens driver, has：Support the carrier of lens；Above-mentioned carrier can be made to be moved to above-mentioned lens axis direction
The carrier support of dynamic configuration；Relatively above-mentioned carrier support, the drive that above-mentioned carrier is driven to the optical axis direction of said lens
Dynamic portion.The present invention is intended to provide a kind of enable above-mentioned carrier more stably to move the lens driving to above-mentioned lens axis direction
For the purpose of device.
Meanwhile the present invention also aims to provide it is a kind of have can enable carrier to the lens of the more stable movement in lens axis direction
For the purpose of the camera apparatus and electronic equipment of driving device.
【The method for solving problem】
Lens driver provided by the invention, has：
Support the carrier of lens；
It can make above-mentioned carrier to the carrier support of above-mentioned lens axis direction movement configuration；
Relatively above-mentioned carrier support, the drive division that above-mentioned carrier is driven to above-mentioned lens axis direction；
The radial direction centered on above-mentioned lens axis to two at, positioned at outer circumferential side and the above-mentioned carrier of above-mentioned carrier
Supporter is respectively provided with sphere between inner circumferential side.
This lens driver is characterized as：After above-mentioned sphere is applied in opposite direction or same direction power, above-mentioned carrier
Then it is supported between the inner circumferential side for the above-mentioned carrier support being connected to each other with above-mentioned sphere.
The further feature of the lens driver is that the periphery of the sphere distinguishes point contact in by the load
Body supporter adjoining 2 while the carrier support corner formed this 2 while each side surface.
The further feature of the lens driver is that ball support body is located at the sphere and the carrier periphery
Between side, which has the ball support body corner formed by 2 adjacent sides, and the sphere side face is put respectively to be connect
Touch in each edge surface on 2 side in the ball support body corner.
The further feature of the lens driver is, the ball support body configuration using the lens axis as
The radial direction at center is between a sphere in the sphere to position and the carrier outer circumferential side, and one into the sphere
The pre- of the precompression in the radial expansion direction centered on the lens axis is set between a sphere and the carrier outer circumferential side
Pressure device.
The further feature of the lens driver is that the power for the mutual opposite direction that relatively described sphere applies is just
It is the radially power of side centered on the lens axis.
The further feature of the lens driver is to be applied in relative to the sphere mutual unidirectional
Power is exactly the power in the circumferential direction centered on the lens axis.
The further feature of the lens driver is, with the radial direction centered on the lens axis to position
At least one in the upper sphere being configured respectively is to be formed along the optical axis direction by multiple spheres of multiple configurations.
The further feature of the lens driver is the light of the multiple spheres configured on the optical axis direction
Partition plate is installed between the sphere of direction of principal axis adjoining.
Meanwhile camera apparatus provided by the invention, electronic equipment are equipped with said lens driving device.
【The effect of invention】
A kind of lens driver, has：Support the carrier of lens；It is configured such that above-mentioned carrier to above-mentioned lens axis
The carrier support of direction movement；Relatively above-mentioned carrier support, above-mentioned carrier is driven to the optical axis direction of said lens
Drive division.According to the present invention, it is possible to provide a kind of above-mentioned carrier is more stably moved the lens to above-mentioned lens axis direction
Driving device.
Then, can so provide it is a kind of have enable lens from carrier to the more stable movement in lens axis direction driving fill
For the purpose of the camera apparatus and electronic equipment put.
Brief description of the drawings
【Fig. 1】It is expressed as the plan of lens driver embodiment 1 of the present invention.
【Fig. 2】It is expressed as the oblique view after a part for the lens driver shown in Fig. 1 is omitted.
【Fig. 3】It is expressed as in the lens driver shown in Fig. 1, each sphere is applied in the structure of opposite direction power
A part for one embodiment omitted after oblique view.
【Fig. 4】It is expressed as the plan of lens driver embodiment 2 of the present invention.
【Fig. 5】It is expressed as the oblique view after a part for the lens driver shown in Fig. 4 is omitted.
【Fig. 6】It is expressed as the plan of lens driver embodiment 3 of the present invention.
【Fig. 7】Be expressed as in the lens driver shown in Fig. 6, the outer circumferential side of carrier by sphere be sandwiched in wherein, by
Be pressed on carrier support inner circumferential side 1 part of form omitted after oblique view.
【Fig. 8】Be expressed as in the lens driver shown in Fig. 6, the outer circumferential side of carrier by sphere be sandwiched in wherein, by
Be pressed on carrier support inner circumferential side 2 part of form omitted after oblique view.
【The explanation of symbol】
1st, 11,21, lens driver
3 carriers
20 lens optical axis positions
2 bases
2a, 2b, 2d base wall
4 collar extensions
4a, 4b, 4c, 4d, 4e, 4f collar extension side
5a, 5b 5c, 5d collar extensions
6a, 6b, 6c, 6d magnetite
7a, 7b 7c, 7d coils
8 ball support bodies
8a partition plates
The side of 8b, 8c ball support body
9 ball support bodies
The side of 9a, 9b, 9c, 9d ball support body
10a position sensors
10b magnetic circle magnetites
12a, 12b sphere
13 spheres
18 ball support bodies
The side of 18a, 18b ball support body
19 ball support bodies
The side of 19a, 19b ball support body
Embodiment
Lens driver of the present invention is applied to the small-sized auto-focusing camera of particularly mobile phone etc., equipped with such
The electronic equipments such as the mobile phone of auto-focusing camera, multifunctional mobile telephone.
It refer to annex drawing below to illustrate the embodiment of the present invention, but it is relevant to be not limited to the present invention
Embodiment, according to the contents in patent claim, can carry out various changes in the technical scope of grasp.
(embodiment 1)
With reference to Fig. 1~Fig. 3, the embodiment 1 of lens driver of the present invention is illustrated.
The lens driver 1 of this embodiment 1, including：Support the carrier 3 of lens；Assembling can make carrier 3 to lens light
The carrier support of direction of principal axis movement；Relatively above-mentioned carrier support, the driving that carrier 3 is driven to above-mentioned lens axis direction
Portion.To illustrate the lens driver 1, it is illustrated that in eliminate cover part.
In Fig. 1, position shown in symbol 20 is lens optical axis position.Carrier 3 is configured in Fig. 2 shown in arrow 24,25
Can be along in the carrier support that optical axis direction moves.
In embodiment 1, carrier support includes base 2 and the collar extension 4 being fixed on base 2.
In the lens driver 1 of embodiment 1, the top view of base 2 is rectangle, be fixed on collar extension 4 on base 2 by
Thin plate magnetic substance is formed, and corresponding four collar extension sides 4a, 4b, 4c, 4d of shape of base 2 forms the structure that top view is rectangle.
The normal of the inner peripheral surface of four collar extension sides 4a, 4b, 4c, 4d is respectively perpendicular to optical axis.The top view of the collar extension 4 of this embodiment 1 is
Square.
In the inner side of collar extension 4, carrier 3 is configured on base 2.
One jiao in the carrier support corner that 2 sides abutted from the collar extension 4 for forming carrier support are formed it is opposite to
Carrier support corner, opposite carrier supporter, is configured with and a pair of drives carrier 3 to what the optical axis direction of lens drove
Portion.
In embodiment 1, in the carrier support corner that 2 side 4a, 4d for being abutted by collar extension 4 are formed, coil 7a by with
It is placed in the inner side of collar extension 4.In the carrier support corner that 2 side 4b, the 4c abutted by collar extension 4 are formed, coil 7b is configured in
The inner side of collar extension 4.
On the other hand, carrier 3 is in its outer circumferential side, opposite with coil 7a, 7b to having magnetite 6a, 6b respectively on position.
In embodiment 1, since coil 7a, 7b are configured in carrier support corner, magnetite 6a, 6b are configured in therewith
It is opposite to 3 periphery of carrier, therefore from the point of view of magnetite 6a, 6b are with top view, show has towards the side in carrier support corner
Vertex, have a kind of triangular shaped of base in the side of carrier 3.
Coil 7a, 7b are corresponding with the both sides of the optical axis parallel direction of coil 7a, 7b to the magnetic pole of magnetite 6a, 6b to face, N
Pole, S poles are set as conversely.
The electric current that coil 7a, 7b are applied to by control produces driving force so that the lens that carrier 3 and carrier 3 are supported
(not shown) is focused to the movement of lens axis direction and zoom.
At the same time, it is illustrated that embodiment 1 in, collar extension 5a, 5b be configured in respectively it is opposite with magnetite 6a, 6b bases to load
3 periphery of body, magnetite 6a, 6b are sandwiched therebetween by collar extension 5a, 5b, are fixed on the periphery of carrier 3.
In embodiment 1, coil 7a, 7b be configured in it is a pair of to carrier support corner, i.e. collar extension 4 pair of horns
On the inner side in portion.It is opposite with this coil 7a, 7b to equipped with magnetite 6a, the 6b for being fixed on 3 periphery of carrier.In this way, with the institute of symbol 20
Centered on the lens axis shown diametrically to 2 at equipped with a pair of of drive division.
On the other hand, it is another in the carrier support corner that 2 sides abutted by the collar extension 4 for forming carrier support are formed
To on carrier support corner, equipped with the pair of sliding portion guided and support carrier 3 is moved to lens axis direction.
In embodiment 1, in the carrier support corner formed by 2 side 4a, 4b that collar extension 4 abuts, sphere 12a, 12b
Between the inner circumferential side of 2 side 4a, the 4b abutted positioned at the outer circumferential side of carrier 3 and the collar extension 4 of composition carrier support.Meanwhile by ring
In the carrier support corner that 2 side 4c, 4d of the adjoining of mouth 4 are formed, sphere 13 is located at the outer circumferential side of carrier 3 with forming carrier branch
Between the inner circumferential side for 2 side 4c, 4d that the collar extension 4 of support body abuts.
In embodiment 1, in the sliding part of sphere 12a, 12b configuration side, 2 spheres are configured in optical axis direction.Configuration
It is the inclination for preventing carrier 3 in 2 spheres 12a, 12b of optical axis direction, is preferably formed objects.Meanwhile sphere 13 preferably with
Sphere 12a, 12b formed objects, but not necessarily want formed objects can not.
Therefore, 2 abutted with collar extension 4 while 4a, 4b inner peripheral surface (the edge surface of 4a, 4b during collar extension) and sphere 12a,
The side face of 12b is point contact.Meanwhile with collar extension 4 abut 2 while 4c, 4d inner peripheral surface (the edge surface of 4c, 4d during collar extension) with
The side face of sphere 13 is point contact.
In embodiment 1, ball support body 8 is located between sphere 12a, 12b and the outer circumferential side of carrier 3.Sphere 12a, 12b
Contact between sphere support 8 is point contact.Also, ball support body 9 be located at sphere 13 and carrier 3 outer circumferential side it
Between.Contact between sphere 13 and sphere support 9 is point contact.
Ball support body 8 between sphere 12a, 12b and 3 outer circumferential side of carrier has what adjacent 2 side 8b, 8c were formed
Ball support body corner portion.Formed the ball support body corner portion 2 side 8b, 8c each edge surface, sphere 12a, 12b's
Side face is point contact.In this embodiment 1, rings of 2 side 8b, the 8c in ball support body corner using top view as square is formed
Mouthfuls 4 diagonal configuration is into axisymmetrical.Though not shown, carrier 3 includes the structure of ball support body 8, can also make sphere 12a,
The side face of 12b and the outer circumferential surface point contact of carrier 3.
As shown in figure 3, the ball support body 9 between 3 outer circumferential side of sphere 13 and carrier is by by the curved bullet of plate
Spring is formed.Ball support body 9 has the ball support body corner that adjacent 2 side 9c, 9d are formed.Also, form the sphere branch
The side face of each edge surface upper sphere 13 of 2 side 9c, the 9d in support body corner is point contact.In this embodiment 1, sphere is formed
From the point of view of 2 side 9c, the 9d in supporter corner are with top view, by the diagonal configuration of the collar extension 4 of square into axisymmetrical.
In this way, in one jiao of a pair of of subsystem portion of collar extension 4, sphere 12a, 12b point contact are in the ball between carrier 3
Body supporter 8, while point contact is in the inner peripheral surface of collar extension side 4a, 4b.In addition, at another angle in a pair of of subsystem portion of collar extension 4
In portion, 13 point contact of sphere is in the ball support body 9 between carrier 3, while point contact is in the inner circumferential of collar extension side 4c, 4d
Face.Through this structure, the radial direction centered on lens axis shown in symbol 20 to 2 on a pair of of configuration slip
Portion guides and supports carrier 3 to be moved to optical axis direction.
Ball support body 9 be by 3 outer circumferential side of carrier dock cardinal extremity side 9a docked with sphere 13 front end side 9c,
The medial side 9d of 9d is connected；Radially expansion between the outer circumferential side of sphere 13 and carrier 3 centered on lens axis
Direction on be applied with precompression.
The precompression given by ball support body 9, direction stress shown in sphere 13 along arrow 22, carrier 3 is along arrow
Direction stress shown in 23 (Fig. 3).
In Fig. 3, precompression that ball support body 9 applies from carrier 3 to 23 pointing needle of arrow passes through ball support body 8
Act on sphere 12a, 12b (Fig. 1).
As a result, sphere 13 and sphere 12a, 12b are applied with laterally shown in symbol 20 centered on optical axis radially
The power of opposite direction each other.In this way, the interior inner circumferential side of sphere 13 and the collar extension 4 of sphere 12a, 12b docking just supports between each other
Carrier 3.
The outer circumferential side of the carrier 3 of 8 side of ball support body i.e. between sphere 12a, 12b 23 institute of arrow in by Fig. 1
Show direction force, while the direction applies a force to sphere 12a, 12b, sphere 12a, 12b are supported by collar extension side 4a, 4b of collar extension 4
Pressure.
On the other hand, between sphere 13, as the outer circumferential side of the carrier 3 of the spring side of ball support body 9, according to ball
The precompression effect that body supporter 9 applies so that sphere 13 is by while direction force, sphere 13 is by collar extension 4 shown in arrow 22
4c, 4d are compressed on collar extension side.
In this way, carrier 3 be supported on collar extension side 4a, 4b of the collar extension 4 that sphere 13 and sphere 12a, 12b are docked respectively with
Between collar extension side 4c, 4d.
The effect of precompression that the support is applied by ball support body 9 forms, be as shown in symbol 20 centered on optical axis
Radial direction each laterally to the identical power of, mutual opposite direction.Therefore, carrier 3 is forming carrier support
Support is balanced on the inner side of collar extension 4.
One in the carrier support corner that i.e. carrier 3 is formed by forming 2 sides that the collar extension 4 of carrier support abuts
Angle to carrier support corner pair of sliding portion, by carrier support balanced support.Then, the ball in above-mentioned sliding part
Body 12a, 12b, 13 carry out point contact mode with other side's sidepiece part as described above and contact.Therefore, according to by carrier support corner
In another to a pair of of drive division for being configured of carrier support corner apply driving force effect so that carrier 3 is to arrow
Optical axis direction shown in first 24,25 smoothly moves.
Particularly in this embodiment 1, since direction shown in arrow 22,23 is the diagonal of the collar extension 4 of square,
Therefore it is symmetrical in line by axis of the diagonal of collar extension 4 that collar extension side 4a, 4b of collar extension 4 suffered by sphere 12a, 12b, which compress power,.Separately
Outside, sphere 13 by collar extension 4 collar extension while 4c, 4d 8b, 8c institute stress, ball support body when compressing the 2 of power and ball support body 8
92 side 9c, 9d institute stress are also just as.Therefore, because carrier 3 by collar extension 4 cornerwise left and right directions stress balance compared with
It is good, so can more stably be supported.
Also, the side face point contact of ball support body 9 and sphere 13.Meanwhile between the outer circumferential side of sphere 13 and carrier 3 with
The power being radially unfolded centered on lens axis is as can act on sphere 13 and carrier 3 preferably.Here, as can playing this
Kind of function, then be not limited to this make the curved spring of above-mentioned plate.
In embodiment 1, the collar extension side 4a internal perisporiums of collar extension 4 are equipped with position sensor 10a, 3 periphery wall of carrier to
Position is equipped with magnetic circle magnetite 10b.When producing driving force by the electric current of coil 7a, 7b, by position sensor 10a holding and
The optical axis direction position of control vector 3.
In embodiment 1, being equipped with the sphere configured in a side corner sections of ball support body 8 has on optical axis direction 2
The sphere 12a and 12b of configuration.
With each radially to the sliding part configured to position centered on lens axis, in its each sphere formed at least
One is in the construction that optical axis direction is preferably configured as multiple spheres.The structure as being once made, centered on lens axis
Radial direction carrier 3 in collar extension 4 to the supported at three point to position, so holding state stablize it is effective.
In embodiment 1, support, sphere 12a between sphere 12a and collar extension side 4a, 4b are along optical axis direction diverse location
Support between 4a, 4b of sphere 12b and collar extension, sphere 13 and support during collar extension between 4c, 4d, form supported at three point.
Also, in optical axis direction position, sphere 13 is once configured between sphere 12a and sphere 12b, with greater need for stable support shape
State.
In embodiment 1, pars intermedia of the ball support body 8 in optical axis direction has partition plate 8a prominent laterally.Light
When direction of principal axis is made the construction for being configured with multiple spheres, preferably it is made as being equipped with partition plate between the sphere of optical axis direction adjoining
Structure.By this structure, each sphere 12a, 12b and collar extension while 4a, 4b, ball support body 8 while 8b, 8c between slip energy
It is independent each other to carry out, so favorably.Partition plate can be arranged on ball support body 8, can also be set on carrier 3.
In the lens driver 1 of embodiment 1, due to carrier 3 from the radial direction centered on lens axis to position
On sliding part is respectively configured, balanced support is preferably thus subject to by carrier support.At this moment, between the component in the sliding part
Contact be point contact.Meanwhile the radial direction centered on lens axis is to the radial direction of the above-mentioned sliding part to position
Orthogonal radial direction to being furnished with a pair of of drive division to position.At this moment, the driving force effect of the drive division is applied to, load can be made
3 opposite carrier supporter of body is moved along optical axis direction is smooth shown in arrow 24,25.
Accordingly, it can be achieved that carrier 3 in the camera apparatus and electronic equipment of the lens driver 1 equipped with embodiment 1
And the lens axis direction that carrier 3 supports can stablize movement.
As shown in Figures 1 and 2, the upper and lower end face of carrier 3 is extended to the position of sphere 13, and as the upper and lower of sphere 13
It may be employed to position limitation.Meanwhile on sphere 12a, 12b, not shown lid, partition plate 8a, base 2 can be used.
Also, in sphere, sphere 12 is 1, and sphere 13 is multiple, such as may be alternatively configured 2.
It is also possible to be made at least the one of ball support body 8,9, for example, while 8b, 8c or while 9c, 9d formed
Shallow circular arc, is contacted with any with sphere 12a, 12b or 13.
In addition, drive division is not to be the VCM modes for using coil and magnetite, such as piezoelectric element mode or profit can also be used
With marmem mode.
(embodiment 2)
With reference to annex map 4, Fig. 5, the embodiment 2 of lens driver of the present invention is illustrated.
The same symbolic indication in the part identical with the embodiment 1 using Fig. 1~Fig. 3 introductions, the description thereof will be omitted.
In the lens driver 11 of embodiment 2, coil 7c, 7d are configured at collar extension 4 along collar extension side 4b, 4a of collar extension 4
Inner side.Magnetite 6c, 6d that the periphery of carrier 3 is fixed in by collar extension 5c, 5d be also it is corresponding with coil 7c, 7d shape,
In the shape and structure extended along collar extension side 4b, 4a.
Other structures are identical with using the embodiment 1 of Fig. 1~Fig. 3 introductions.
Moreover in embodiment 2, make the position sensor 10a and magnetite 6c that is fixed on 3 periphery of carrier oppositely disposed, magnetic
Stone 6c also is used as magnetic circle magnetite.
Meanwhile the collar extension side 4d of the collar extension 4 of embodiment 2 eliminates center section, is fixed in the ora terminalis of collar extension side 4d
In one kind construction on the wall 2a of base 2.Collar extension 4 need not be made to the ring-type of closing, so processing is easier to.
In embodiment 2, carrier 3 is supported on sphere 13 and the collar extension side with sphere 12a, 12b collar extension 4 docked respectively
Between 4a, 4b and collar extension side 4c, 4d.The precompression that the support is applied by ball support body 9, the optical axis shown in symbol 20
Centered on radially, be respectively equal power in the power in outward direction, in mutual reverse direction.Therefore, carrier 3 is forming carrier
The inner side of the collar extension 4 of supporter can obtain preferable balanced support.
(embodiment 3)
With reference to 6~Fig. 8 of annex map, the embodiment 3 of lens driver of the present invention is illustrated.
With the 1 common part of embodiment using Fig. 1~Fig. 3 introductions, with same symbolic indication, the description thereof will be omitted.
In embodiment 1,2, radial direction centered on the lens axis shown in symbol 20 to 2 at be configured with a pair of of cunning
Dynamic portion.Specifically, in the carrier support corner that is formed of 2 sides abutted with forming the collar extension 4 of carrier support to
On carrier support corner, it is configured with guiding and supports the pair of sliding portion that is moved to lens axis direction of carrier 3.
In embodiment 3, radial direction centered on the lens axis shown in symbol 20 to 2 at equipped with pair of sliding
Portion.But in embodiment 3, the allocation position in this pair of sliding portion can also be formed in the collar extension 4 for forming carrier support
In the carrier support corner that adjacent 2 sides are formed to carrier support corner beyond place.
In the lens driver 21 of embodiment 3, as shown in fig. 6, the collar extension side 4a in embodiment 1 is since halfway
As collar extension side 4e to inward side to bending.At this moment, the remainder of the collar extension side 4a of embodiment 1 is changed into the base of base 2
Wall 2d.
In addition, the collar extension of embodiment 1 while 4c from midway initially as collar extension while 4f to inward side to bending.At this moment, it is real
The remainder for applying the collar extension side 4c in form 1 is changed into the base wall 2b of base 2.
Accordingly, in embodiment 3, there is the collar extension 4 that coil 7a, 7b, a pair of of drive division of magnetite 6a, 6b be able to configure
A pair of of corner, it is by part (collar extension is in 4d, collar extension while 4b) and nonmagnetic part (the base wall 2d, base wall 2b) institute that is magnetic
Formed.
In embodiment 3, in the carrier support corner that 2 side 4a, the 4e abutted by collar extension 4 are formed, sphere 12a,
12b is installed between the inner circumferential side of the outer circumferential side of carrier 3 and adjoining 2 side 4a, 4e of the collar extension 4 of composition carrier support.Together
When, in the carrier support corner that 2 side 4c, the 4f abutted by collar extension 4 are formed, sphere 13 is installed in the periphery of carrier 3
Between the inner circumferential side for 2 side 4c, 4f that the collar extension 4 of side and composition carrier support abuts.
The inner peripheral surface for 2 side 4a, 4e that the side face point contact of sphere 12a, 12b are abutted in the collar extension 4 for forming carrier support
(surface of collar extension side 4a, 4e).
In addition, the inner peripheral surface for 2 side 4c, 4f that the side face point contact of sphere 13 is abutted in the collar extension 4 for forming carrier support
(the edge surface of collar extension side 4c, 4f).
Even if in embodiment 3, ball support body be installed in sphere 12a, 12b, 13 and carrier 3 outer circumferential side it
Between.Then, the contact between sphere 12a, 12b, 13 and sphere support is also respectively point contact.
Ball support body 18 between sphere 12a, 12b and 3 outer circumferential side of carrier has what adjacent 2 side 18a, 18b were formed
Ball support body corner.Form the 2 of the ball support body corner while 18a, 18b it is each while the surface and side face of sphere 12a, 12b
It is point contact.
Ball support body 19 is installed between 3 outer circumferential side of sphere 13 and carrier, it has by 2 adjacent side 19a, 19b
The ball support body corner formed.Also, the side face point contact of sphere 13 in formed the ball support body corner 2 side 19a,
On each edge surface of 19b.
Meanwhile, ball support body 18 pars intermedia oriented protruding outside partition plate in optical axis direction identical with embodiment 1
18c, configure on optical axis direction 2 differences sphere 12a, 12b are demarcated to come.
In this way, the radial direction centered on the lens axis shown in symbol 20 to 2 at, sphere 12a, 12b point contact in
Ball support body 18 between carrier 3, while point contact is in collar extension side 4a, 4e.In addition, 13 point contact of sphere is in peace
Ball support body 19 between carrier 3, while point contact is in the inner peripheral surface of collar extension side 4c, 4f.Through this structure, accord with
The radial direction centered on lens axis shown in numbers 20 to 2 at be configured with pair of sliding portion, form a kind of guide and simultaneously support
The construction that carrier 3 is moved to optical axis direction.
In embodiment 3, a pair for the collar extension 4 for being able to configure with coil 7a, 7b, a pair of of drive division of magnetite 6a, 6b
Corner, it is by part (collar extension is in 4d, collar extension while 4b) and nonmagnetic part (base wall 2d, base wall 2b) institute shape that is magnetic
Into.Therefore, magnetite 6a can be drawn to collar extension side 4d directions (direction of arrow 28 shown in Fig. 6), while magnetite 6b is drawn to collar extension side
4b directions (29 direction of arrow).
These directions are attracted to by magnetite 6a, 6b, on carrier 3, as shown in arrow 26,27, with shown in symbol 20
Power is along the circumferential direction acted centered on lens axis.
The power put on carrier 3 by configuring the ball support body 19,18 in 3 outer circumferential side of carrier, act on to sphere 13,
12a、12b.In this way, on sphere 13,12a, 12b, mutual unidirectional power, i.e., shown in arrow 26,27, with shown in symbol 20
Power is applied in circumferencial direction centered on lens axis.
As a result, being applied with mutual unidirectional power to sphere 13, sphere 12a, 12b, carrier 3 is supported on sphere
13rd, between the inner circumferential side of the collar extension 4 of sphere 12a, 12b docking.
It is mounted with that 3 outer circumferential side of carrier of the side of ball support body 18 is subject to arrow in Fig. 6 between sphere 12a, 12b
After the power in direction shown in 27, sphere 12a, 12b are applied a force in this direction, sphere 12a, 12b are pressed on composition carrier supported
On collar extension side 4a, 4e of the collar extension 4 of body.
On the other hand, the outer circumferential side of the carrier 3 for 19 side of ball support body being installed between sphere 13 arrow in by Fig. 6
Direction force shown in first 26, the direction apply a force to sphere 13, and sphere 13 is pressed on the collar extension for the collar extension 4 for forming carrier support
On side 4a, 4f.
Accordingly, carrier 3 is supported on sphere 13, collar extension side 4c, 4f and ring of the collar extension 4 that sphere 12a, 12b are docked respectively
Between mouth side 4a, 4e.
The support according to the suction of the magnetic force between magnetite 6a, 6b and collar extension 4d, 4b, be it is a kind of as shown in symbol 20 with
Centered on optical axis in the circumferential direction, mutually unidirectional equal power.Therefore, carrier 3 forms the ring of carrier support
The inner side of mouth 4 is able to balanced support.
I.e. carrier 3 by the radial direction centered on the lens axis shown in symbol 20 to 2 at configure pair of sliding
Portion, by by carrier support balanced support.Then, sphere 12a, 12b in above-mentioned sliding part, 13 point contacts described above are the same as right
Square component carries out point contact.Accordingly, a pair of of the drive configured on a pair of of carrier support corner in carrier support corner
The driving force that dynamic portion applies so that carrier 3 is moved along arrow 24,25 Suo Shi along optical axis direction is smooth.
In this embodiment 3, as shown in arrow 27,26, to put on sphere 12a, 12b, 13 force direction as axis, collar extension
The 2 of 4 while 4a, 4e, ball support body 18 2 while 18a, 18b, collar extension 42 while 4c, 4f, ball support body 19 2 while 19a, 19b
It is in line symmetric construction to be preferably respectively.Carrier 3 can be more stably supported through this structure.
Claims (10)
1. a kind of lens driver, has：
Support the carrier of lens；
It is equipped with the carrier support that the carrier can be made to be moved to the optical axis direction of the lens；
Relatively described carrier support, the drive division that the carrier is driven to the lens axis direction；
Centered on the lens axis diametrically to two at, positioned at outer circumferential side and the carrier branch of the carrier
Support body is respectively provided with sphere between inner circumferential side；
It is characterized in that the carrier is applied in radial direction or the power of circumferencial direction, and the sphere is acted on, so that described
Sphere be applied in radial direction centered on optical axis, mutual opposite direction or centered on optical axis in the circumferential direction,
After mutual same direction power, the carrier be then supported on the carrier support being connected to each other with the sphere inner circumferential side it
Between.
2. lens driver as claimed in claim 1, it is characterized in that, the periphery of the sphere distinguishes point contact in by institute
State carrier support adjoining 2 while the carrier support corner formed this 2 while each side surface.
3. the lens driver described in claim 1, it is characterized in that, ball support body is located at outside the sphere and the carrier
Between side, which has the ball support body corner that is formed by 2 adjacent sides, sphere side face point respectively
It is contacted with each edge surface on 2 side in the ball support body corner.
4. lens driver as claimed in claim 3, it is characterized in that, the ball support body configuration is with the lens light
Radial direction centered on axis is between a sphere in the sphere to position and the carrier outer circumferential side, into the sphere
A sphere and the carrier outer circumferential side between the precompression in radial expansion direction centered on the lens axis is set
Prepressing device.
5. lens driver as claimed in claim 1, it is characterized in that, the mutual opposite direction that relatively described sphere applies
Power is exactly the radially power of side centered on the lens axis.
6. lens driver as claimed in claim 1, it is characterized in that, the mutual same side being applied in relative to the sphere
To power be exactly power in the circumferential direction centered on the lens axis.
7. lens driver as claimed in claim 1, it is characterized in that, with the radial direction centered on the lens axis to
At least one in the sphere being configured respectively on position is multiple sphere institutes along the optical axis direction by multiple configurations
Form.
8. lens driver as claimed in claim 7, it is characterized in that, the institute of the multiple spheres configured on the optical axis direction
State optical axis direction adjoining sphere between partition plate is installed.
9. photographic means, it is characterised in that there is the lens driver any one of claim 1 to claim 8.
10. electronic equipment, it is characterised in that there is the lens driving dress any one of claim 1 to claim 8
Put.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-219296 | 2013-10-22 | ||
| JP2013219296A JP6273491B2 (en) | 2013-10-22 | 2013-10-22 | Lens driving device, camera device, and electronic device |
| JPJP2013-219296 | 2013-10-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104570270A CN104570270A (en) | 2015-04-29 |
| CN104570270B true CN104570270B (en) | 2018-04-17 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420614903.4U Expired - Fee Related CN204129307U (en) | 2013-10-22 | 2014-10-22 | Lens driver, photographic means and electronic equipment |
| CN201410568246.9A Active CN104570270B (en) | 2013-10-22 | 2014-10-22 | Lens driver, photographic means and electronic equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420614903.4U Expired - Fee Related CN204129307U (en) | 2013-10-22 | 2014-10-22 | Lens driver, photographic means and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6273491B2 (en) |
| CN (2) | CN204129307U (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6273491B2 (en) * | 2013-10-22 | 2018-02-07 | 新シコー科技株式会社 | Lens driving device, camera device, and electronic device |
| JP3200481U (en) * | 2015-02-26 | 2015-10-22 | 株式会社Ｅｓｔ | Lens drive device |
| JP6765212B2 (en) * | 2016-04-25 | 2020-10-07 | 新思考電機有限公司 | Lens drive device, camera device and electronic equipment |
| KR101847433B1 (en) * | 2016-06-21 | 2018-04-10 | (주)알비케이이엠디 | Lens driving device |
| KR101886386B1 (en) * | 2016-06-21 | 2018-08-09 | (주)알비케이이엠디 | Lens driving device |
| KR101794582B1 (en) * | 2016-06-22 | 2017-11-07 | (주)알비케이이엠디 | Ball guide structure of camera module |
| WO2017222188A1 (en) * | 2016-06-22 | 2017-12-28 | (주)알비케이이엠디 | Ball guide structure of camera module |
| IT201700074728A1 (en) * | 2017-07-04 | 2019-01-04 | Actuator Solutions GmbH | Camera module auto-focus actuator |
| JP6602422B2 (en) * | 2018-06-01 | 2019-11-06 | 新思考電機有限公司 | LENS DRIVE DEVICE, CAMERA DEVICE, AND ELECTRONIC DEVICE |
| CN111917273B (en) * | 2020-08-27 | 2022-04-19 | Oppo（重庆）智能科技有限公司 | Ball motor, camera module and mobile terminal |
| JP2023032342A (en) * | 2021-08-26 | 2023-03-09 | ミツミ電機株式会社 | Optical element driving device, camera module and camera mounting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203217151U (en) * | 2013-03-07 | 2013-09-25 | 华宏新技股份有限公司 | Lens actuating device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101044219B1 (en) * | 2009-10-19 | 2011-06-29 | 삼성전기주식회사 | Lens actuating module |
| JP5696631B2 (en) * | 2011-09-21 | 2015-04-08 | コニカミノルタ株式会社 | Lens barrel and lens unit |
| JP5768620B2 (en) * | 2011-09-22 | 2015-08-26 | Tdk株式会社 | Lens drive device |
| JP5955609B2 (en) * | 2012-03-30 | 2016-07-20 | 日本電産サンキョー株式会社 | Lens drive device |
| CN203133365U (en) * | 2013-01-14 | 2013-08-14 | 瑞声声学科技(苏州)有限公司 | Lens driving device |
| JP6273491B2 (en) * | 2013-10-22 | 2018-02-07 | 新シコー科技株式会社 | Lens driving device, camera device, and electronic device |
-
2013
- 2013-10-22 JP JP2013219296A patent/JP6273491B2/en active Active
-
2014
- 2014-10-22 CN CN201420614903.4U patent/CN204129307U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203217151U (en) * | 2013-03-07 | 2013-09-25 | 华宏新技股份有限公司 | Lens actuating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015081991A (en) | 2015-04-27 |
| CN104570270A (en) | 2015-04-29 |
| CN204129307U (en) | 2015-01-28 |
| JP6273491B2 (en) | 2018-02-07 |
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Owner name: XINSIKAO ELECTRIC MOTOR CO., LTD. Free format text: FORMER OWNER: SIKAO ELECTRIC MOTOR (SHANGHAI) CO., LTD. Effective date: 20150722 |
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Effective date of registration: 20150722 Address after: 314112 Jiashan City, Jiaxing province Huimin County Street, No., Jia Jia Road, building 3, 1 floor, 58 Applicant after: New math courses Electric Machine Co., Ltd Address before: 201613 No. 38 Teng Teng Road, Songjiang District export processing zone, Shanghai, China Applicant before: Shicoh Motor (Shanghai) Co., Ltd. |
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