CN104280856A - Lens drive device, autofocus camera, and mobile terminal with camera - Google Patents
Lens drive device, autofocus camera, and mobile terminal with camera Download PDFInfo
- Publication number
- CN104280856A CN104280856A CN201410593445.5A CN201410593445A CN104280856A CN 104280856 A CN104280856 A CN 104280856A CN 201410593445 A CN201410593445 A CN 201410593445A CN 104280856 A CN104280856 A CN 104280856A
- Authority
- CN
- China
- Prior art keywords
- front side
- side spring
- collar extension
- lens
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
Abstract
The invention relates to a lens driving device, an auto-focus camera and a mobile terminal with a camera, and the lens driving device, the auto-focus camera and the mobile terminal with the camera can prevent adhesion agent from invading a front side spring in a manufacturing process of the lens driving device. The lens driving device comprises a lens support body, coils, an annular ring port which enables the lens support body to have a free movement configuration on an inner peripheral side, a magnet which is fixed on the ring port and configured opposite to the coils, a front side spring and a back side spring which keep the lens support body to have free movement, a foundation which is configured at a back side of the ring port in an optical axis direction and holds the back side spring, and a framework which is configured at a front side of the ring port in an optical axis direction and holds the front side spring. By utilizing electromagnetic force generated after energization of the coils, the lens support body is made to move back and forth in the optical axis direction. A gap is arranged between the front side spring and the ring port, so the front side spring is held on the framework.
Description
The application be applicant on June 11st, 2012 submit to, application number is " 201210191257.0 ", denomination of invention is the divisional application of " mobile terminal of lens driver, auto-focus camera and having camera ".
Technical field
The present invention is the mobile terminal of associated lens drive unit, auto-focus camera and having camera.Called mobile terminal refers to mobile phone, mobile information terminal (PDA), notebook computer etc.
Background technology
In patent document 1 (TOHKEMY 2010-211242 publication), disclose a kind of lens driver, it has: collar extension; Load the base of collar extension; The framework of collar extension is configured between base; Be configured in the lens supports body of the drum of collar extension inner circumferential side; Front side spring on front side of the optical axis direction being configured in lens supports body.The peripheral part of front side spring is held between collar extension and framework.According to the technology of this patent document 1, front side spring clamp can be held between collar extension and framework.
In the manufacturing engineering of lens driver, collar extension is being arranged on base, lens supports body is being configured in the inner circumferential side of collar extension, front side spring is being configured in collar extension, after the front side Configuration Framework of front side spring, fix base, collar extension and framework according to liquid solid.Now, liquid solid, according to capillarity, penetrates between collar extension and framework, invades the front side spring be held in therebetween.Under intrusion state, solid hardens, and likely feeds through to the impact on front side spring performance.
Summary of the invention
Therefore, the object of this invention is to provide the mobile terminal of a kind of lens driver, auto-focus camera and having camera, it is in the manufacturing engineering of lens driver, can prevent solid from invading in the spring of front side.
A kind of lens driver, has: be the lens supports body of support of lens in inner circumferential; Be arranged on the coil on lens supports external week; Lens supports body moves freely the ring-type collar extension of configuration by inner circumferential side; To be fixed in collar extension and the magnetite configured with coil subtend; The front side keeping lens supports body to do to move freely and rear side spring; Base that is upper on rear side of collar extension optical axis direction, that maintain rear side spring will be configured at; On front side of the optical axis direction being configured at collar extension, framework that front side spring is maintained.According to the electromagnetic force produced after coil electricity, the optical axis direction of lens supports body along lens is moved forward and backward.The feature of this lens driver is, is provided with gap, is kept in the frame between front side spring and collar extension.
The further feature of this lens driver is, the leaf spring of ring-type has the possible wrist of inner periphery side portion, periphery sidepiece, the elastic deformation that is connected with periphery sidepiece by inner periphery side portion.Framework has, the collar extension docking section connected with collar extension.More recessed than collar extension docking section more front side, is formed at different aspects and the front side spring maintaining part maintained by the periphery sidepiece of front side spring.
The further feature of this lens driver is, the periphery sidepiece solid of front side spring is fixed in the front side spring maintaining part of framework.
The feature of auto-focus camera is, it has the lens driver of described any feature.
The feature of the mobile phone of having camera is be equipped with aforesaid auto-focus camera.
Described lens driver, front side spring and collar extension are provided with gap, remain on framework.Accordingly, front side spring is not needed to be held between collar extension and framework and just can maintain, so in the manufacturing engineering of lens driver, when base, collar extension and framework being fixed by liquid solid, according to capillarity, solid is prevented to invade in the spring of front side.
Framework butts up against collar extension in collar extension docking section.By the front side spring maintaining part forming great disparity, the periphery sidepiece of front side spring is maintained.Accordingly, in the manufacturing engineering of lens driver, without the need to increasing component number, solid is just prevented to invade in the spring of front side.
The front side spring being fixed on framework by solid due to the peripheral part of front side spring does not keep.So after front side spring is assembled in framework in advance, then configure these in collar extension, so in the manufacturing engineering of lens driver, assembling operation can be easier to.
Accompanying drawing explanation
The framework of the lens driver in [Fig. 1] relevant example and front side spring are from the oblique view viewed from base side.
B-B sectional view shown in [Fig. 2] Fig. 1.
The exploded perspective view of the lens driver of [Fig. 3] relevant example.
A-A sectional view shown in [Fig. 4] Fig. 5.
The general survey oblique view of the lens driver of [Fig. 5] relevant example.
The explanation of Reference numeral:
1 lens driver
3 collar extensions
5 lens supports bodies
7 frameworks
8 bases
Spring on front side of in the of 9
Spring on rear side of in the of 11
13 magnetites
19 coils
Embodiment
Below with reference to the Fig. 1 to Fig. 5 in annex drawing, example of the present invention is described in detail.Lens driver 1 in this example shown in Fig. 5 is the lens driver of the auto-focus camera be assembled in mobile phone.
This lens driver 1, as shown in Figure 3, has the collar extension 3 of ring-type; Lens supports body 5; Front side spring 9 on front side of the optical axis direction being configured in collar extension 3; Be configured in the framework 7 on the front side of front side spring 9; Be configured in the base 8 on rear side of collar extension 3 and rear side spring 11.Rear side pad 15 is configured between rear side spring 11 and collar extension 3.In this example, lateral body being shot is front side, and the subtend of object side is rear side.That is, framework 7 side is front side, on rear side of position, base 8 side.
Collar extension 3 is plane quadrangle from periphery viewed from front side.Inner circumferential is planar rondure.It is by outer peripheral sidewall 3a, inner circumferential sidewall 3b, is formed by the connecting wall 3c that outer peripheral sidewall 3a and inner circumferential sidewall 3b are connected separately.The section constitution コ word shape of outer peripheral sidewall 3a and inner circumferential sidewall 3b and connecting wall 3c.On inner circumferential sidewall 3b, be formed with cut portion 12 from rear side end face forward.Cut portion 12 configures in the circumferential direction at equal intervals, in this example, on the outer peripheral sidewall 3a of plane square shape, is arranged on the position between adjacent corners 14 corresponding to (part on limit).
On each bight 14 of collar extension 3, the inner peripheral surface of outer peripheral sidewall 3a is fixed with magnetite 13.Magnetite 13 is arranged on bight 14, relative with inner circumferential sidewall 3b.
The slightly cylindrical shape of lens supports body 5, within it perimembranous loading lens (not shown), is moved the inner circumferential side being arranged on collar extension 3 in the direction of the optical axis comfortablely.Annulus 19 is fixedly installed to the periphery of lens supports body 5.
As shown in Figure 4, coil 19 is configured between the outer peripheral sidewall 3a of collar extension 3 and inner circumferential sidewall 3b, the magnetite 13 on certain bight of magnetite 13 and between inner circumferential sidewall 3b, moves together with lens supports body 5 in collar extension 3 as fore-and-aft direction.
As shown in Figure 3, front side spring 9 is ring-type leaf spring, is provided with inner periphery side portion 9a and periphery sidepiece 9b.Inner periphery side portion 9a is fixed on lens supports body 5.As shown in Figures 1 and 2, periphery sidepiece 9b is arranged between collar extension 3 and framework 7, is fixed on framework 7.Inner periphery side portion 9a and periphery sidepiece 9b are connected by the wrist 9c of energy elastic deformation.Wrist 9c as shown in Figure 3, time viewed from front side, is configured to overlap with the connecting wall 3c of collar extension 3.
As shown in Figure 3, framework 7 periphery sees that on front side of optical axis direction its plane is square shape.Inner circumferential is the resin material forming toroidal.In the periphery of framework 7, each bight is provided with bight 7a, fixes with foot's 8a tabling of base 8.
In addition, as shown in Figures 1 and 2, framework 7 has, the collar extension docking section 7b connected with collar extension 3.More recessed than collar extension docking section 7b more front side, is formed at different aspects and the front side spring maintaining part 7c maintained by the periphery sidepiece 9b of front side spring 9.The periphery sidepiece 9b of front side spring 9 is then fixed by solid C on the front side spring maintaining part 7c of framework 7.
Section difference height between collar extension docking section 7b and front side spring maintaining part 7c is higher than the thickness of front side spring 9 a lot, even if then the solid of base 8, collar extension 3 and framework 7 overflows from collar extension docking section 7b, also can not arrive the height of spring 9.In addition, the end of the inner circumferential side of front side spring maintaining part 7c is recessed poor to front side formation section further.The end of periphery sidepiece 9b of front side spring 9 and the end of the inner circumferential side of front side spring maintaining part 7c slightly same position, compare and be formed on position, inner circumferential side.
As shown in Figure 3, the periphery of base 8 sees that on front side of optical axis direction its plane is square shape.Inner circumferential is the Ins. ulative material forming square shape.In the periphery of base 8, each bight sets up foot 8a, and foot's 7a tabling of framework 7 is fixed.On the outer peripheral face of the square shape of base 8, on one side, the adjacent configuration of 2 metal terminals 33,35, forms the fitting portion 8b of tabling relative to the end of rear side spring 11.
Rear side spring 11 presents the leaf spring of tabular as a whole.In this example, be that the sidepiece 20 that is separated by left and right and the other side 22 formed.On of each periphery sidepiece 11b of rear side spring 11, the rear side pad 15 with insulator is clamped between base 8 and collar extension 3 together.The object of rear side pad 15 makes every effort to carry out electrical resistance insulation by between rear side spring 11 and collar extension 3.Each inner periphery side portion 11a is fixed on the rear end of lens supports body 5.Each inner periphery side portion 11a of rear side spring 11 is be connected by the wrist 11c that elastic deformation is possible with periphery sidepiece 11b.
In addition, though not shown, the inner periphery side portion 11a of a sidepiece 20 of rear side spring 11 is connected one end of coil 19.The inner periphery side portion 11a of the other side 22 of rear side spring 11 is connected the other end of coil 19.
In addition, the periphery sidepiece 11b of a sidepiece 20 of rear side spring 11 is connected on metal terminal 33, and the periphery sidepiece 11b of the other side 22 is connected on metal terminal 35.
Next, the assembling of the lens driver 1 of example, functions and effects are described.
The assembling of lens driver 1, first, in advance on lens supports body 5 by coil 19, in collar extension 3 by magnetite, front side spring 9 is assembled on framework 7.
Next, spring 11, lens supports body 5, rear side pad 15, collar extension 3, framework 7, metal terminal 33,35 are assembled by base 8 successively.After this, base 8, collar extension 3, framework 7 make it to harden and fix after the solid of coating liquid shape.
So, in the lens driver 1 of state after assembling, the inner circumferential side 9a being fixed on the front side spring 9 on lens supports body 5 configures to obtain more front side than the periphery sidepiece 9b be fixed on front side of framework 7 on spring maintaining part 7c.That is, in lens driver 1 in the assembled state, the periphery sidepiece 9b of front side spring 9 is pressed in press against on direction of the front side spring maintaining part 7c of framework 7 in advance according to the elasticity of wrist 9c.
Next, by one end of coil 19 by solid or be welded to connect in form rear side spring 11 a sidepiece 20 inner periphery side portion 11a on.By the other end of coil 19 by solid or be welded to connect form rear side spring 11 the other side 22 inner periphery side portion 11a on.
Lens driver 1 when driving, it be by from being connected to the sidepiece 20 of power supply terminal 33 to rear side spring 11 of substrate, coil 19, another sidepiece 22 of rear side spring 11, the metal terminal 35 be connected on the power supply terminal of circuit substrate carry out DC current circulation.Now, base 8 is insulating material.Due to metal terminal 33 and metal terminal 35 configured separate, so between metal terminal 33 and metal terminal 35 after intervention base 8, no current leaks.
Like this, once be energized to coil 19, by acting on the electromagnetic force of coil 19, resisting the precompression in front side spring 9 and rear side spring 11 that lens supports body is moved mutually, when reaching equilibrium locations between the power of front side spring 9, rear side spring 11, moving stopping.
According to example of the present invention, setting and the collar extension 3 of front side spring 9 have gap, are held on framework 7.Accordingly, do not need front side spring 9 to be clamped between collar extension 3 and framework 7 just can maintain, so in the manufacturing engineering of lens driver 1, when base 8, collar extension 3 and framework 7 being fixed by liquid solid, can prevent solid from invading on the spring 9 of front side by capillarity.
In addition, framework 7 butts up against in collar extension 3 in the 7b of collar extension docking section, is maintained by the periphery sidepiece 9b of front side spring 9 by the front side spring maintaining part 7c forming tomography.Accordingly, in the manufacturing engineering of lens driver 1, when base 8, collar extension 3 and framework 7 are fixed by liquid solid, even if liquid solid is injected in the collar extension docking section 7b of framework 7, also can not invade in the front side spring maintaining part 7c of formation tomography.Accordingly, in the manufacturing engineering of lens driver 1, without the need to increasing component number, just can prevent solid from invading in the spring 9 of front side.
In addition, the front side spring maintaining part 7c of framework 7 implements some glue with solid to the periphery sidepiece 9b of front side spring 9, front side spring 9 is being fixed on after on framework 7 in advance, these are configured in collar extension 3, so, in the manufacturing engineering of lens driver 1, easily implement assembling operation.
The invention is not restricted to above-mentioned example, only otherwise depart from main scope of the present invention can do all distortion may.Such as, in above-mentioned example, on the front side spring maintaining part 7c of framework 7, some glue is implemented to the periphery sidepiece 9b of front side spring 9 with solid C.After assembling framework 7 and front side spring 9, the front side spring maintaining part that front side spring 9 scioptics supporter 5 is pressed in framework 7 in advance press against on direction, so it is also feasible to carry out a glue without solid C.
In addition, in above-mentioned example, in framework 7, be provided with tomography between collar extension docking section 7b and front side spring maintaining part 7c, between collar extension 3 and front side spring 9, be provided with gap.Be not limited thereto, also can in framework 7, be provided with and by the embedding mouth in the periphery sidepiece 9b of front side spring 9 reeve front side, can embed in mouth at this and periphery sidepiece 9b of front side spring 9 embedding is maintained, gap can be set between collar extension 3 and front side spring 9 from collar extension docking section 7b.
Claims (5)
1. a lens driver, has
It inner circumferential is the lens supports body of support of lens;
Be arranged on the coil on lens supports external week;
Lens supports body moves freely the ring-type collar extension of configuration by inner circumferential side;
To be fixed in collar extension and the magnetite configured with coil subtend;
The front side keeping lens supports body to do to move freely and rear side spring;
Be configured on rear side of collar extension optical axis direction, maintain the base of rear side spring; And
On front side of the optical axis direction being configured at collar extension, framework that front side spring is maintained; Wherein, according to the electromagnetic force produced after coil electricity, the optical axis direction of lens supports body along lens is moved forward and backward;
It is characterized in that,
Front side spring and the isolated setting of collar extension, time on rear side of the lens supports side of rear side spring is also positioned at than base side, lens supports body is from base.
2. lens driver as claimed in claim 1, it is characterized in that, framework has the collar extension docking section connected with collar extension, compared with collar extension docking section recessed in front side, be formed with different aspects and the front side spring maintaining part maintained by front side spring.
3. lens driver as claimed in claim 2, is characterized in that, the central authorities of base are provided with dimetric through hole.
4. auto-focus camera, is characterized in that, has the lens driver described in claim 1 to claim 3 any one.
5. the mobile terminal of having camera, is characterized in that, is equipped with auto-focus camera according to claim 4.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-130022 | 2011-06-10 | ||
| JP2011130022A JP5936177B2 (en) | 2011-06-10 | 2011-06-10 | Lens drive device, autofocus camera and mobile terminal with camera |
| CN201210191257.0A CN102819088B (en) | 2011-06-10 | 2012-06-11 | Lens drive device, automatic focusing camera and mobile terminal device attached with camera |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210191257.0A Division CN102819088B (en) | 2011-06-10 | 2012-06-11 | Lens drive device, automatic focusing camera and mobile terminal device attached with camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104280856A true CN104280856A (en) | 2015-01-14 |
| CN104280856B CN104280856B (en) | 2017-07-07 |
Family
ID=47303302
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210191257.0A Active CN102819088B (en) | 2011-06-10 | 2012-06-11 | Lens drive device, automatic focusing camera and mobile terminal device attached with camera |
| CN2012202725346U Withdrawn - After Issue CN202649581U (en) | 2011-06-10 | 2012-06-11 | Lens driving device, auto-focus camera and mobile terminal with camera |
| CN201410593445.5A Active CN104280856B (en) | 2011-06-10 | 2012-06-11 | The mobile terminal of lens driver, auto-focusing camera and having camera |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210191257.0A Active CN102819088B (en) | 2011-06-10 | 2012-06-11 | Lens drive device, automatic focusing camera and mobile terminal device attached with camera |
| CN2012202725346U Withdrawn - After Issue CN202649581U (en) | 2011-06-10 | 2012-06-11 | Lens driving device, auto-focus camera and mobile terminal with camera |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5936177B2 (en) |
| CN (3) | CN102819088B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5936177B2 (en) * | 2011-06-10 | 2016-06-15 | 新シコー科技株式会社 | Lens drive device, autofocus camera and mobile terminal with camera |
| CN103995339A (en) * | 2014-05-29 | 2014-08-20 | 厦门新鸿洲精密科技有限公司 | Motor structure with voice rings arranged in middle |
| JP6589097B2 (en) | 2015-04-21 | 2019-10-16 | 新シコー科技株式会社 | LENS DRIVE DEVICE, CAMERA DEVICE, AND ELECTRONIC DEVICE |
| CN111492285B (en) * | 2017-12-19 | 2022-03-29 | 阿尔卑斯阿尔派株式会社 | Lens driving device, camera module, and method for manufacturing lens driving device |
| CN108173411B (en) * | 2018-01-09 | 2024-05-28 | 信利光电股份有限公司 | Voice coil motor |
| CN209858825U (en) * | 2018-05-11 | 2019-12-27 | 台湾东电化股份有限公司 | Optical element driving mechanism |
| TWI751786B (en) * | 2020-11-13 | 2022-01-01 | 大陽科技股份有限公司 | Actuator device for driving an imaging lens system and image capturing unit and electronic device including the same |
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- 2012-06-11 CN CN201210191257.0A patent/CN102819088B/en active Active
- 2012-06-11 CN CN2012202725346U patent/CN202649581U/en not_active Withdrawn - After Issue
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104280856B (en) | 2017-07-07 |
| JP2012255973A (en) | 2012-12-27 |
| CN202649581U (en) | 2013-01-02 |
| CN102819088B (en) | 2014-10-01 |
| JP5936177B2 (en) | 2016-06-15 |
| CN102819088A (en) | 2012-12-12 |
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