CN102819088A - Lens drive device, automatic focusing camera and mobile terminal device attached with camera - Google Patents
Lens drive device, automatic focusing camera and mobile terminal device attached with camera Download PDFInfo
- Publication number
- CN102819088A CN102819088A CN2012101912570A CN201210191257A CN102819088A CN 102819088 A CN102819088 A CN 102819088A CN 2012101912570 A CN2012101912570 A CN 2012101912570A CN 201210191257 A CN201210191257 A CN 201210191257A CN 102819088 A CN102819088 A CN 102819088A
- Authority
- CN
- China
- Prior art keywords
- front side
- collar extension
- lens
- side spring
- 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.)
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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)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
Abstract
The present invention relates to a lens driving device which can prevent adhesion agents intruding into a front-side spring, an automatic focusing camera and a mobile terminal device attached with the camera. The lens driving device comprises: a lens support body; a coil; an annular ring opening moving freely arranged on the inner peripheral side of the lens support body; a magnet stone fixed on the ring opening and disposed in opposite direction with the coil; a front spring and a rear spring maintaining the lens support body for free movement; a base which is disposed on the rear side of the direction of the optical axis of the ring opening and maintains the rear spring; and a frame disposed on the front side of the direction of the optical axis of the ring opening and maintains the front spring. According to the electromagnetic force generated by the coil after being energized, the lens supporting body is moved back and forth along the direction of the optical axis of the lens. The front spring is provided with a gap between the ring opening and is held on the frame.
Description
Technical field
The present invention is the portable terminal of associated lens drive unit, auto-focus camera and subsidiary camera.Called mobile terminal is meant mobile phone, carry information terminal (PDA), notebook computer etc.
Background technology
In the patent document 1 (TOHKEMY 2010-211242 communique), disclosed a kind of lens driver, it has: collar extension; Load the base of collar extension; The framework of configuration collar extension between base; Be configured in the lens supports body of the drum of all sides in the collar extension; Be configured in the front side spring of the optical axis direction front side of lens supports body.The peripheral part of front side spring is held between collar extension and the framework.According to the technology of this patent document 1, can the front side spring clamp be held between collar extension and the framework.
In the manufacturing engineering of lens driver; Collar extension is being installed on the base, the lens supports body is being configured in interior all sides of collar extension, the front side spring is being configured in the collar extension; After the front side Configuration Framework of front side spring, fix base, collar extension and framework according to liquid solid.At this moment, liquid solid penetrates between collar extension and the framework according to capillarity, invades the front side spring that is held in therebetween.Under the intrusion state, the solid sclerosis might feed through to front side spring Effect on Performance.
Summary of the invention
Therefore, the purpose of this invention is to provide the portable terminal of a kind of lens driver, auto-focus camera and subsidiary camera, it can prevent that the solid intrusion is to the spring of front side in the manufacturing engineering of lens driver.
A kind of lens driver has: at the lens supports body of interior Zhou Shangwei support of lens; Be arranged on the coil of lens supports on external week; On interior all sides, the lens supports body moved freely the ring-type collar extension of configuration; Be fixed on the collar extension and with the magnetite of coil subtend configuration; Keep the lens supports body to make front side and the rear side spring that moves freely; With being disposed on the collar extension optical axis direction rear side, maintaining the base of rear side spring; The framework that is disposed at the optical axis direction front side of collar extension, the front side spring is maintained.According to the electromagnetic force that behind coil electricity, is produced, the optical axis direction of lens supports body along lens moved forward and backward.The characteristics of this lens driver are, are provided with the gap between front side spring and collar extension, are maintained in the framework.
The further characteristics of this lens driver are, all sidepieces in the leaf spring of ring-type has, periphery sidepiece, the possible wrist of elastic deformation that interior all sidepieces are connected with the periphery sidepiece.Framework has, the collar extension docking section that connects with collar extension.Than collar extension docking section recessed front side more, the front side spring maintaining part that is formed at different aspects and the periphery sidepiece of front side spring is maintained.
The further characteristics of this lens driver are that the periphery sidepiece of front side spring is fixed on the front side spring maintaining part of framework with solid.
Being characterized as of auto-focus camera, it has the lens driver of said any characteristics.
Being characterized as of the mobile phone of subsidiary camera is equipped with aforesaid auto-focus camera.
Described lens driver, front side spring and collar extension are provided with the gap, remain on the framework.In view of the above; The front side spring need not be held between collar extension and the framework and just can maintain, so in the manufacturing engineering of lens driver, when base, collar extension and framework are fixed through liquid solid; According to capillarity, prevented that the solid intrusion is to the spring of front side.
Framework butts up against collar extension in the collar extension docking section.Front side spring maintaining part through forming great disparity maintains the periphery sidepiece of front side spring.In view of the above, in the manufacturing engineering of lens driver, need not to increase component number, just prevented that the solid intrusion is to the spring of front side.
Because the peripheral part of front side spring does not keep through the front side spring that solid has been fixed on framework.So, after the front side spring is assembled in framework in advance, again these are configured on the collar extension, so in the manufacturing engineering of lens driver, assembling operation can be easier to.
Description of drawings
The framework of the lens driver in [Fig. 1] relevant example and the oblique view that the front side spring is looked sideways from base.
[Fig. 2] B-B sectional view shown in Figure 1.
The exploded perspective view of the lens driver of [Fig. 3] relevant example.
The A-A sectional view that [Fig. 4] is shown in Figure 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
9 front side springs
11 rear side springs
13 magnetites
19 coils
Embodiment
Below with reference to the Fig. 1 to Fig. 5 in the annex drawing, example of the present invention is elaborated.Lens driver 1 in shown in Figure 5 example is the lens driver that is assembled into the auto-focus camera in the mobile phone.
This lens driver 1, as shown in Figure 3, have the collar extension 3 of ring-type; Lens supports body 5; Be configured in the front side spring 9 on the optical axis direction front side of collar extension 3; Be configured in the framework 7 on the front side of front side spring 9; Be configured in base 8 and rear side spring 11 on collar extension 3 rear sides.Rear side pad 15 is configured between rear side spring 11 and the collar extension 3.In this example, being taken the photograph lateral body is the front side, and the subtend of object side is a rear side.That is, framework 7 sides are the front side, base 8 side position rear sides.
Look periphery sideways is the plane quadrangle to collar extension 3 in the past.Interior week is a planar rondure.It is by outer peripheral sidewall 3a, interior all sidewall 3b, outer peripheral sidewall 3a is constituted with the connecting wall 3c that interior all sidewall 3b are connected separately.The section constitution コ word shape of outer peripheral sidewall 3a and interior all sidewall 3b and connecting wall 3c.On interior all sidewall 3b, be formed with excision portion 12 from the rear side end face forward.Excision portion 12, on the outer peripheral sidewall 3a of plane square shape, is arranged on the pairing position of 14 of adjacent corners (part on limit) in this example in the first-class arranged spaced of Zhou Fangxiang.
On each bight 14 of collar extension 3, on the inner peripheral surface of outer peripheral sidewall 3a, be fixed with magnetite 13.Magnetite 13 is arranged on the bight 14, with interior all sidewall 3b relatively to.
The slightly cylindrical shape of lens supports body 5, perimembranous loading lens (not having diagram) is moved the interior all sides that are arranged on collar extension 3 comfortablely on optical axis direction within it.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 and interior all sidewall 3b of collar extension 3, between the magnetite 13 on magnetite 13 certain bight and interior all sidewall 3b, moves as fore-and-aft direction in collar extension 3 with lens supports body 5.
As shown in Figure 3, front side spring 9 is the ring-type leaf spring, all sidepiece 9a and periphery sidepiece 9b in being provided with.In all sidepiece 9a be fixed on the lens supports body 5.Like Fig. 1 and shown in Figure 2, periphery sidepiece 9b is arranged between collar extension 3 and the framework 7, is fixed on the framework 7.In all sidepiece 9a and periphery sidepiece 9b be that wrist 9c through can elastic deformation is connected.Wrist 9c is as shown in Figure 3, when looking sideways, is configured to the connecting wall 3c overlaid with collar extension 3 in the past.
As shown in Figure 3, it is square shape that framework 7 peripheries are looked its plane sideways before the optical axis direction.Interior week is for constituting the resin material of 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, like Fig. 1 and shown in Figure 2, framework 7 has, the collar extension docking section 7b that connects with collar extension 3.Than collar extension docking section 7b recessed front side more, the front side spring maintaining part 7c that is formed at different aspects and the periphery sidepiece 9b of front side spring 9 is maintained.The periphery sidepiece 9b of front side spring 9 then fixes through solid C on the spring maintaining part 7c of the front side of framework 7.
Section difference height between collar extension docking section 7b and the front side spring maintaining part 7c is high more a lot of than the thickness of front side spring 9, even if then the solid of base 8, collar extension 3 and framework 7 7b overflows from the collar extension docking section, can not arrive the height of spring 9 yet.In addition, the end of interior all sides of front side spring maintaining part 7c is further recessed poor to front side formation section.The end of interior all sides of the end of the periphery sidepiece 9b of front side spring 9 and front side spring maintaining part 7c is same position slightly, compare be formed on all side positions.
As shown in Figure 3, the periphery of base 8 is looked its plane sideways before the optical axis direction and is square shape.Interior week is for forming the insulativity material of square shape.In the periphery of base 8, the foot's 7a tabling that on each bight, sets up 8a of foot and framework 7 is fixed.On the outer peripheral face of the square shape of base 8, on the one of which side, 2 metal terminal 33,35 disposed adjacent form the fitting portion 8b of tabling with respect to the end of rear side spring 11.
Rear side spring 11 presents tabular leaf spring as a whole.In this example, be by about the sidepiece 20 that is separated constitute with 22 of the other sides.On one one of each periphery sidepiece 11b of rear side spring 11, be clamped in together between base 8 and the collar extension 3 with the rear side pad 15 of insulator.The purpose of rear side pad 15 is to make every effort to carrying out the insulation of electric property between rear side spring 11 and the collar extension 3.All sidepiece 11a are fixed on the rear end of lens supports body 5 in each.All sidepiece 11a are to be connected by the possible wrist 11c of elastic deformation with periphery sidepiece 11b in each of rear side spring 11.
In addition, though there is not diagram, interior all sidepiece 11a of a sidepiece 20 of rear side spring 11 are connected an end of coil 19.Interior all sidepiece 11a of the other side 22 of rear side spring 11 are 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 the metal terminal 33, and the periphery sidepiece 11b of the other side 22 is connected on the metal terminal 35.
Next, assembling, effect and the effect to the lens driver 1 of example describes.
The assembling of lens driver 1, at first, in advance on the lens supports body 5 with coil 19, on the collar extension 3 with magnetite, on framework 7, front side spring 9 is assembled.
Next, on base 8, successively spring 11, lens supports body 5, rear side pad 15, collar extension 3, framework 7, metal terminal 33,35 are assembled.After this, base 8, collar extension 3, framework 7 make it to harden fixing behind the solid of coating liquid shape.
So, after assembling in the lens driver 1 of state, the interior all side 9a that are fixed on the front side spring 9 on the lens supports body 5 than be fixed on periphery sidepiece 9b on the framework 7 front side spring maintaining part 7c dispose front side more.That is, in the lens driver 1 under assembled state, the periphery sidepiece 9b of front side spring 9 is according to elasticity precompressed the pressing on the direction at the front side of framework 7 spring maintaining part 7c of wrist 9c.
Next, the end with coil 19 perhaps is welded to connect on interior all sidepiece 11a of a sidepiece 20 that constitutes rear side spring 11 through solid.The other end of coil 19 perhaps is welded to connect on interior all sidepiece 11a of the other side 22 that constitutes rear side spring 11 through solid.
Like this, in case to coil 19 energising,, resist the precompression of spring 9 and rear side spring 11 that the lens supports body is moved mutually in the front side through acting on the electromagnetic force of coil 19, and the power of front side spring 9, rear side spring 11 between move when reaching equilibrium locations and stop.
According to example of the present invention, the setting of front side spring 9 and collar extension 3 are gapped, remain on the framework 7.In view of the above; Do not need front side spring 9 is clamped between collar extension 3 and the framework 7 and just can maintain; So in the manufacturing engineering of lens driver 1, base 8, collar extension 3 and framework 7, can be prevented on the solid intrusion front side spring 9 through capillarity fixedly the time through liquid solid.
In addition, framework 7 butts up against on the collar extension 3 in the 7b of collar extension docking section, and the front side spring maintaining part 7c through forming tomography maintains the periphery sidepiece 9b of front side spring 9.In view of the above; In the manufacturing engineering of lens driver 1; Base 8, collar extension 3 and framework 7 through liquid solid fixedly the time, even if liquid solid is injected among the collar extension docking section 7b of framework 7, can not invaded among the front side spring maintaining part 7c of formation tomography into yet.In view of the above, in the manufacturing engineering of lens driver 1, need not to increase component number, just can prevent that solid from invading in the front side spring 9.
In addition, on the spring maintaining part 7c of the front side of framework 7, the periphery sidepiece 9b of front side spring 9 is implemented some glue with solid, with front side spring 9 predetermined fixed after on the framework 7; These are configured on the collar extension 3; So, in the manufacturing engineering of lens driver 1, implement assembling operation easily.
The invention is not restricted to above-mentioned example, only otherwise break away from purport scope of the present invention can do all distortion maybe.Such as, in above-mentioned example, implement some glue with solid C periphery sidepiece 9b to front side spring 9 on the spring maintaining part 7c of the front side of framework 7.After framework 7 and front side spring 9 are assembled, 5 precompressed of front side spring 9 scioptics supporters in the front side of framework 7 the spring maintaining part pressing on the 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 the front side spring maintaining part 7c, between collar extension 3 and front side spring 9, be provided with the gap.Be not limited thereto; Also can be in framework 7; Be provided with from collar extension docking section 7b and can the periphery sidepiece 9b of front side spring 9 be injected the embedding mouth in the front side, the periphery sidepiece 9b embedding with front side spring 9 in this embedding mouth maintains, and can between collar extension 3 and front side spring 9, the gap be set.
Claims (5)
1. a lens driver has
Lens supports body in interior Zhou Shangwei support of lens;
Be arranged on the coil of lens supports on external week;
On interior all sides, the lens supports body moved freely the ring-type collar extension of configuration;
Be fixed on the collar extension and with the magnetite of coil subtend configuration;
Keep the lens supports body to make front side and the rear side spring that moves freely;
With being disposed on the collar extension optical axis direction rear side, maintaining the base of rear side spring; And
The framework that is disposed at the optical axis direction front side of collar extension, the front side spring is maintained; Wherein, according to the electromagnetic force that behind coil electricity, is produced, the optical axis direction of lens supports body along lens moved forward and backward;
It is characterized in that,
Be provided with the gap between front side spring and collar extension, the front side spring is maintained in the framework.
2. lens driver as claimed in claim 1; It is characterized in that; The front side spring is the ring-type leaf spring; The wrist of all sidepieces in having, periphery sidepiece, ability elastic deformation that interior all sidepieces are connected with the periphery sidepiece, framework has the collar extension docking section that connects with collar extension, than collar extension docking section recessed more front side, the front side spring maintaining part that is formed at different aspects and the periphery sidepiece of front side spring is maintained with the collar extension docking section.
3. lens driver as claimed in claim 2 is characterized in that, the periphery sidepiece of front side spring is fixed on the front side spring maintaining part of framework with solid.
4. auto-focus camera is characterized in that, has any described lens driver of claim 1 to claim 3.
5. the portable terminal of subsidiary camera is characterized in that, is equipped with the described auto-focus camera of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410593445.5A CN104280856B (en) | 2011-06-10 | 2012-06-11 | The mobile terminal of lens driver, auto-focusing camera and having camera |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011130022A JP5936177B2 (en) | 2011-06-10 | 2011-06-10 | Lens drive device, autofocus camera and mobile terminal with camera |
| JP2011-130022 | 2011-06-10 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410593445.5A Division CN104280856B (en) | 2011-06-10 | 2012-06-11 | The mobile terminal of lens driver, auto-focusing camera and having camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102819088A true CN102819088A (en) | 2012-12-12 |
| CN102819088B CN102819088B (en) | 2014-10-01 |
Family
ID=47303302
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
| CN201210191257.0A Active CN102819088B (en) | 2011-06-10 | 2012-06-11 | Lens drive device, automatic focusing camera and mobile terminal device attached with camera |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5936177B2 (en) |
| CN (3) | CN202649581U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110471153A (en) * | 2018-05-11 | 2019-11-19 | 台湾东电化股份有限公司 | Optical module driving mechanism |
Families Citing this family (5)
| 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 |
| 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 |
| 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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| JP5637754B2 (en) * | 2010-07-09 | 2014-12-10 | 台湾東電化股▲ふん▼有限公司 | Lens holding device |
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2011
- 2011-06-10 JP JP2011130022A patent/JP5936177B2/en active Active
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2012
- 2012-06-11 CN CN2012202725346U patent/CN202649581U/en not_active Withdrawn - After Issue
- 2012-06-11 CN CN201410593445.5A patent/CN104280856B/en active Active
- 2012-06-11 CN CN201210191257.0A patent/CN102819088B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1790084A (en) * | 2004-12-15 | 2006-06-21 | 思考电机（上海）有限公司 | Lens drive device |
| JP2007264020A (en) * | 2006-03-27 | 2007-10-11 | Micro Uintekku Kk | Lens driving device |
| JP2007271878A (en) * | 2006-03-31 | 2007-10-18 | Shicoh Eng Co Ltd | Lens driving device and camera device |
| CN101488698A (en) * | 2009-02-23 | 2009-07-22 | 李俊 | Voice coil type focus motor |
| CN202649581U (en) * | 2011-06-10 | 2013-01-02 | 思考电机（上海）有限公司 | Lens driving device, auto-focus camera and mobile terminal with camera |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110471153A (en) * | 2018-05-11 | 2019-11-19 | 台湾东电化股份有限公司 | Optical module driving mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202649581U (en) | 2013-01-02 |
| CN104280856B (en) | 2017-07-07 |
| CN104280856A (en) | 2015-01-14 |
| JP2012255973A (en) | 2012-12-27 |
| CN102819088B (en) | 2014-10-01 |
| JP5936177B2 (en) | 2016-06-15 |
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