CN103472563B - Mobile lens Automatic zoom lens focusing device based on IPMC driver - Google Patents
Mobile lens Automatic zoom lens focusing device based on IPMC driver Download PDFInfo
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- CN103472563B CN103472563B CN201310386077.2A CN201310386077A CN103472563B CN 103472563 B CN103472563 B CN 103472563B CN 201310386077 A CN201310386077 A CN 201310386077A CN 103472563 B CN103472563 B CN 103472563B
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- cover plate
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- ipmc driver
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Abstract
The invention discloses a kind of mobile lens Automatic zoom lens focusing device based on IPMC driver, including base, to electrode, IPMC driver and cover plate, base top is round boss, and inside is cylindrical cavity straight-through up and down, and outside round boss, symmetry has exterior bayonet slot；Electrode is with the ring electrode sheet picked up the ears, and is arranged on round boss end；IPMC driver includes the free zone of the edge constraint district near outer peripheral portion and other parts, and edge constraint district is placed between two ring electrode sheets, and free zone embeds optical lens；Cover plate is outside be short cylinder, and inside is semi-enclosed cavity, the matching form conjunction of its shape and base round boss, and inwall is arranged with inner card cage and passes straight through to cover plate lower end and level turns out the stepped draw-in groove of formation；Being assembled on base by cover plate, semiclosed cavity is connected with base boss, and base boss end is not more than the thickness sum of two plate electrodes and IPMC driver away from cover plate semiclosed cavity distance below.
Description
Technical field
The present invention relates to a kind of camera lens Automatic zoom lens focusing device, be specifically related to one and utilize ionic polymer metal composite material
(Ionic Polymer-Metal Composites, IPMC material), as driver part, resin material, as structure, uses
Device for mobile phone camera lens optics autozoom prepared by packaging technology.
Background technology
In optical lens zoom drive system, the microminiature of linear motion drives element to play an important role.At present,
The focusing mode of mobile phone camera is each variant because of the difference of optical system, in the optical lens drive system in actual application
Focusing elements mainly have voice coil motor (Voice Coil Motor, VCM) (patent documentation 200810303388.7), stepping horse
Reach (patent documentation 201010299770.2) and ultrasonic motor (patent documentation 200410078781.2) etc..In the process of driving
In, VCM structure is complicated, and stroke is by electric current control, and power consumption is generated heat more greatly and easily, affects device lifetime, and stepper motor is with super
Sound wave motor also exists defect at aspects such as frame for movement or control loops.
Emerging electroactive polymeric material (Electroactive polymers is called for short EAP) is a kind of new function material
Material.As the typical electro-active material of one, can produce large deformation under IPMC electrical impulse outside, after excitation is removed, it is again
Original geomery can be returned to；Additionally, this material deforms upon under external force, can produce corresponding under certain condition
The signal of telecommunication.Relative to traditional intelligence material, IPMC material have light weight, motion flexibly, energy consumption is low, be readily formed and warp
The outstanding advantages such as indefatigability damage by large deformation so that it is rapidly become a study hotspot in intellectual material field.Cause
This, IPMC material can overcome, as optical lens actuator, the deficiency that conventional ADS driving mode brought.
At present, abroad the microminiature actuation applications based on IPMC material is arrived by some enterprises and research institution
Preliminary study has been carried out in optical lens driver.Japan EAMEX company develops a kind of for mobile lens Zoom control
IPMC microminiature actuator, Korean electronics communication graduate Hyung-Kun Lee et al. have developed has autozoom function
Mobile lens imaging device.It addition, Sung-Joo Kim of Univ Yonsei Seoul of Korea S et al. utilizes solion as solvent, change
It is apt to the performance of IPMC, have developed a set of IPMC driving means for automatic focusing system on this basis.But, these grind
Study carefully work all to lay particular emphasis on and realize device focusing function, the design of shorter mention activation configuration and optimization problem.
Summary of the invention
It is an object of the invention to provide that a kind of IPMC of employing drives is capable of mobile phone camera lens optical zoom
Device,
For reaching object above, the present invention adopts the following technical scheme that and is achieved:
A kind of mobile lens Automatic zoom lens focusing device based on IPMC driver, it is characterised in that include being in same center
Base, pair of electrodes, IPMC driver and cover plate on axis, described base is made up of with upper circular boss polycrystalline substance,
Chassis interior is the cylindrical cavity led directly to up and down, and outside round boss, symmetry has exterior bayonet slot；Described electrode is with picking up the ears
Ring electrode sheet, is arranged on round boss end, and the picking up the ears of two electrodes is in 180 °；Described IPMC driver is circular piece,
Including the free zone near the edge constraint district of outer peripheral portion and other parts, edge constraint district be placed in two ring electrode sheets it
Between, free zone embeds optical lens；Described cover plate is outside is short cylinder, and inside is semi-enclosed cavity, its shape and base circle
The matching form of shape boss closes, and this semi-enclosed cavity inwall is arranged with inner card cage and passes straight through to cover plate lower end and level turns out formation
Stepped draw-in groove；Being assembled on base by cover plate, make semiclosed cavity be connected with base boss, base boss end is away from lid
Plate semiclosed cavity distance below is not more than the thickness sum of two plate electrodes and IPMC driver.
In such scheme, described IPMC driver, its free zone is shaped as lobed, annular or similar structures.Described freedom
District's diameter is defined to 2-6mm.Described lobed number is defined to 4-12.
Described base bottom structure is square, and it is symmetrically arranged on two with the lug of band through hole；Outside described cover plate short cylinder
Side is also arranged with the lug of band through hole, and described base bottom square both sides lug is the most corresponding with cover plate outer both sides lug, uses
Bolt connects.
Described base bottom square both sides lug the most just differs 90 ° with exterior bayonet slot；The outer both sides of described cover plate are convex
Ear the most just differs 90 ° with stepped draw-in groove.
The advantage of mobile lens Automatic zoom lens focusing device of the present invention is, according to the deformation characteristics of IPMC material, uses intelligence
IPMC material is as linear actuator；Devise the driving structure of novelty, inlay the behaviour area of camera lens and be designed with Flos Mume flap and make
IPMC internal modification part is the most symmetrical, beneficially the stablizing of linear drives.Present configuration is simple, manufacturing process side
Just, if it is possible to universal use, mobile phone camera will be reduced and drive energy consumption and the structure challenge of element, and have and well push away
Wide using value.
Accompanying drawing explanation
Fig. 1 is mobile phone camera optical focus of the present invention and the installation diagram of zoom lens control device.
Fig. 2 is the top view of base in Fig. 1.
Fig. 3 is the top view of Fig. 1 cover plate.
Fig. 4 is the IPMC driver schematic diagram in Fig. 1.Wherein: a) be lobed driver；B) it is annular driver.
In Fig. 1～Fig. 4: 1, base, 1-1, through hole, 1-2, exterior bayonet slot, 1-3, straight cavity, 1-4, boss, 2, electrode, 3,
IPMC driver, 3-1, confining region, 3-2, free zone, 4, cover plate, 4-1, through hole, 4-2, stairstepping draw-in groove, 4-3, semiclosed chamber
Body.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Reference Fig. 1～Fig. 4, a kind of mobile lens Automatic zoom lens focusing device based on IPMC driver, common including having one
The base 1 of central axis (optical axis), pair of electrodes 2, IPMC driver 3, cover plate 4.Electrode is with the ring electrode picked up the ears
Sheet, can use commercially available copper electrode material, and line is cut into.Bond between two electrode slices IPMC driver 3.
Base bottom structure is square, and round boss 1-4 is arranged at square top, and outside boss, symmetry has exterior bayonet slot 1-2, side
Shape and with its one boss in the middle of have the straight cavity 1-3 connected, the square lug being symmetrically arranged on two with band through hole 1-1, through hole
1-1 and exterior bayonet slot 1-2 the most just differs 90 ° (Fig. 2).
Cover plate 4 is outside is short cylinder, is arranged with the lug of band through hole 4-1, and cylinder is internal is semi-enclosed cavity 4-
3, the matching form of its shape and base round boss 1-4 closes.It is arranged with inner card cage at this semi-enclosed cavity inwall to pass straight through to
Cover plate lower end level turn out formation stairstepping draw-in groove 4-2；Through hole 4-1 the most just differs with stepped draw-in groove 4-2
90 ° (Fig. 3).
Base and cover plate use resin material or other hard insulations to prepare.Resin material can use hot-forming
Or 3D printing technique.Add and need to ensure that base and cover plate are on same central axis man-hour.Bottom surface and photo-sensitive cell due to base plate
Peripheral circuits plate contacts, and need to ensure have certain flatness.Base draw-in groove 1-2 and cover plate stepped draw-in groove 4-2, it is simple to fixing
With the electrode 2 picked up the ears and ensure positioning precision.
IPMC driver 3 is disc, and its interior shape is lobed, annular or other similar structures, and circular piece edge is
Confining region 3-1, other parts are free zone 3-2.Several lobed district mutually insulateds, surface electrode is uniform；Annulus or other
The surface electrode of similar structures also requires that uniformly.Lobed number is defined to 4-12 (the present embodiment is 8), and free zone 3-2 is straight
Footpath (internal diameter of confining region 3-1) is defined to 2-6mm(Fig. 4).Lobed structure and loop configuration can use machine cuts mode to realize.
IPMC power output is increased in the case of not reducing displacement, can be in the way of using multi-disc IPMC material stack, it is also possible to use
The IPMC material that cast film processes preparation is thick.Simultaneously in order to obtain without lax and the IPMC material of stable performance, the present invention also can adopt
By the method described by patent documentation " packaging technology of a kind of IPMC driver " (application number: 201110255830.5) to IPMC
Material is packaged.
One plate electrode 2 is pasted onto base boss 1-4 end, and electrode is picked up the ears and one of them base draw-in groove 1-2 pair
Together, and along this draw-in groove downward bending.Disc IPMC driver 3 confining region 3-1 below is fixed on base boss 1-4 end
On ring electrode, another plate electrode is pasted onto (picking up the ears and cover plate rank of electrode on IPMC driver 3 confining region 3-1 above
Scalariform draw-in groove 4-2 aligns), make IPMC driver fit tightly with upper and lower electrode 2.IPMC driver lobed, annular or other classes
The free zone formed like structure embeds optical lens.
Then cover plate is assembled on base, makes the semiclosed cavity of cover plate be connected with base boss 1-4, base both sides
Draw-in groove 1-2 draw-in groove stepped with cover plate both sides 4-2 is corresponding, and base both sides lug is the most corresponding with cover plate both sides lug, makes to lead to
Hole 1-1,4-1 (wear bolt and connect fixing) with one heart.After assembling, base boss 1-4 end below the semiclosed cavity of cover plate away from
Thickness sum from no more than two plate electrodes Yu circular drives device.By picking up the ears along stepped of IPMC driver overlying electrode 2
Draw-in groove 4-2 folds cover plate lower end, and upper and lower electrode picks up the ears to be in 180 °.
The square of the zoom lens control device base finally assembled by Fig. 1 is fixed on the photo-sensitive cell of mobile phone below.
Apply between two annular electro pole pieces are picked up the ears less than the voltage of 3V, the signal of telecommunication is incorporated into two electrode slices 2 it
Between, voltage is i.e. applied in IPMC driver 3, due to the confining region 3-1(outward flange of IPMC driver 3) fixing, according to IPMC
The deformation mechanism of material, internal drive free zone 3-2 will occur bending and deformation, due to internal drive crushed element circumferentially
Symmetrical, and then general performance is for rising or falling, and at this moment, is fixed on the center (free zone 3-2) of IPMC driver
On mobile lens under the effect that IPMC material deforms, it is achieved the axial linear movement of camera lens, and then realize autozoom merit
Energy.
Claims (1)
1. a mobile lens Automatic zoom lens focusing device based on IPMC driver, it is characterised in that include being in same central shaft
Base, pair of electrodes, IPMC driver and cover plate on line, described base is made up of with upper circular boss polycrystalline substance, the end
Seat is internal is cylindrical cavity straight-through up and down, and outside round boss, symmetry has exterior bayonet slot；Described electrode is with the ring picked up the ears
Shape electrode slice, is arranged on round boss end, and the picking up the ears of two electrodes is in 180 °；Described IPMC driver is circular piece, bag
Include the free zone near the edge constraint district of outer peripheral portion and other parts, edge constraint district be placed in two ring electrode sheets it
Between, free zone embeds optical lens；Described cover plate is outside is short cylinder, and inside is semi-enclosed cavity, its shape and base circle
The matching form of shape boss closes, and this semi-enclosed cavity inwall is arranged with inner card cage and passes straight through to cover plate lower end and level turns out formation
Stepped draw-in groove；Being assembled on base by cover plate, make semi-enclosed cavity be connected with base boss, base boss end is away from lid
Plate semi-enclosed cavity distance below is not more than the thickness sum of two plate electrodes and IPMC driver；Wherein, IPMC driver
Free zone is shaped as lobed or annular；Free zone diameter is defined to 2-6mm；Lobed number is defined to 4-12；
Described base bottom structure is square, and it is symmetrically arranged on two with the lug of band through hole；Outside described cover plate short cylinder also
Being arranged with the lug of band through hole, described base bottom square both sides lug is the most corresponding with cover plate outer both sides lug, uses bolt
Connecting, described base bottom square both sides lug the most just differs 90 ° with exterior bayonet slot；Described cover plate outer both sides lug with
Stepped draw-in groove the most just differs 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386077.2A CN103472563B (en) | 2013-08-29 | 2013-08-29 | Mobile lens Automatic zoom lens focusing device based on IPMC driver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386077.2A CN103472563B (en) | 2013-08-29 | 2013-08-29 | Mobile lens Automatic zoom lens focusing device based on IPMC driver |
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| CN103472563A CN103472563A (en) | 2013-12-25 |
| CN103472563B true CN103472563B (en) | 2016-12-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106057028A (en) * | 2016-05-18 | 2016-10-26 | 西安交通大学 | Braille touch screen device based on IPMC driving |
| CN106860956B (en) * | 2017-03-17 | 2020-09-15 | 苏州艾伊帕微动力科技有限公司 | Portable automatic chronic disease monitoring/drug delivery device driven by flexible micropump |
| CN109899272A (en) * | 2019-04-02 | 2019-06-18 | 河海大学常州校区 | A kind of flexible Micropump based on IPMC material |
| CN113810561B (en) * | 2020-06-12 | 2023-03-24 | 维沃移动通信有限公司 | Driving device, camera module and electronic equipment |
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| JP2007206362A (en) * | 2006-02-01 | 2007-08-16 | Komatsu Lite Seisakusho:Kk | Auto-focusing lens driving mechanism |
| WO2009072748A1 (en) * | 2007-12-04 | 2009-06-11 | Hysonic.Co., Ltd. | Camera module using polymer metal composite |
| KR101245375B1 (en) * | 2011-06-08 | 2013-03-20 | 주식회사 팬택 | Active Flexible Display, Apparatus and Method for Controlling Active Flexible Display |
| CN103123410B (en) * | 2011-11-18 | 2015-12-16 | 新思考电机有限公司 | Lens driver, camera and electronic equipment |
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Effective date of registration: 20210401 Address after: 313012 No.88 yaoweimu, nijiatan village, Shuanglin Town, Nanxun District, Huzhou City, Zhejiang Province Patentee after: HUZHOU ZHONGCHUANG XIAOWEI PIONEER PARK ENTERPRISE MANAGEMENT Co.,Ltd. Address before: 710049 No. 28 West Xianning Road, Shaanxi, Xi'an Patentee before: XI'AN JIAOTONG University |
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Denomination of invention: Automatic zoom device for mobile phone lens based on IPMC driver Effective date of registration: 20230321 Granted publication date: 20161228 Pledgee: Zhejiang Nanxun Rural Commercial Bank branch Shuanglin Limited by Share Ltd. Pledgor: HUZHOU ZHONGCHUANG XIAOWEI PIONEER PARK ENTERPRISE MANAGEMENT Co.,Ltd. Registration number: Y2023330000575 |