CN206248862U - The bionical zoom microlens system of polymer gel eyeball - Google Patents
The bionical zoom microlens system of polymer gel eyeball Download PDFInfo
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- CN206248862U CN206248862U CN201621398824.XU CN201621398824U CN206248862U CN 206248862 U CN206248862 U CN 206248862U CN 201621398824 U CN201621398824 U CN 201621398824U CN 206248862 U CN206248862 U CN 206248862U
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- polymer gel
- microlens
- zoom
- bionical
- positive pole
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Abstract
The utility model discloses a kind of bionical zoom microlens system of polymer gel eyeball, including becoming focus microlens and variable voltage source, become focus microlens and closed-loop path is connected and composed by the both positive and negative polarity of wire and variable voltage source, can control to become the focal length variations of focus microlens by the output voltage for changing variable voltage source.Becoming focus microlens includes polymer gel, positive pole, insulator and negative pole.Positive pole, insulator and negative pole are certain thickness donut structure, are outwards sequentially distributed by center, and flush, and three posts the same side circular polymer gel.Positive pole and negative pole can be made up of copper, silver, Graphene grade height conductive foil or film, and insulator can be made up of the on-deformable insulating materials such as POM.A kind of zoom microlens system of the utility model realizes zoom behavior by the use of the polymer gel with electric rheological behaviour as lens body, self-powered flowing mode, fluid is not relied on, stabilization, convenience, energy consumption are low, low cost, simple structure, thickness of thin, it is easy to accomplish miniaturization.
Description
Technical field
The invention belongs to bionical manufacture field, it is related to a kind of change focus microlens field, is based particularly on polymer gel
A kind of bionical zoom microlens system of eyeball.
Background technology
Machine vision is used to replace human eye to measure and judge, is widely used to optics, electronics, automobile making, partly leads
The multiple industry such as body, military affairs, space flight, is related to the multiple fields such as computer, artificial intelligence, optical, mechanical and electronic integration.Optical lens
As the core of machine vision, just develop towards intelligent, miniaturization, flexibility direction, current its zoom mode mainly passes through
The relative position Mechanical Moving of poly-lens combination realizes, but this method complex structure, bulky, manipulation be difficult, cost
High, precision is low and restrict its application.
Domestic and international some experts, scholar carry out the research of zoom system, pancreatic system in succession, have obtained certain progress.Essentially consist in three
Individual aspect：
One is that zoom is realized by the control of one or two fluid interface shapes, such as 2011 University of Pisas
Federico doctors Carpi etc. propose the bionical adaptive lens driven using dielectric elastomer, copy human eyes structure, soft
Property electrode be powered cause accompany fluid dielectric elastomer deform so as to realize focal length variations (Carpi, F.；Frediani,G.；
Turco,S.；De Rossi,D.,Bioinspired Tunable Lens with Muscle-Like Electroactive
Elastomers.Advanced Functional Materials 2011,21(21),4152-4158)；
Two is to change to realize zoom by local indexes of refraction, such as 2000 L.G.Commander etc. propose that one kind passes through
Variations in refractive index, the zoom lens (Commander, the L.G. that are made up of liquid crystal；Day,S.E.；Selviah,D.R.,
Variable focal length microlenses.Optics Communications 2000,177(1-6),157-
170).The advantages of above two method can realize big zooming range, fast response time, high-resolution, but due to lens system
System contained fluid easily causes fluid leakage, and this will substantially reduce the usage cycles of lens, meanwhile, external drive module is excessive,
Take up room big, be difficult to obtain application.
Three is the use that above-mentioned fluid is substituted using the application of electroactive polymer, but this method unavoidably needs
Transparency electrode is used, such as poly- (3,4-ethene dioxythiophene), indium tin oxide etc., this will limit the application space of zoom lens,
Prestressing force produced by clamping reduces the life-span of electroactive polymer, also, the imaging effect of lens is subject to transparency electrode saturating
Restriction (Son, the S.I. of bright property；Pugal,D.；Hwang,T.；Choi,H.R.；Koo,J.C.；Lee,Y.；Kim,K.；Nam,
J.D.,Electromechanically driven variable-focus lens based on transparent
dielectric elastomer.Appl Opt 2012,51(15),2987-96)。
The content of the invention
For the deficiency of existing zoom-lens system, propose it is an object of the invention to：Propose one kind be independent of fluid, thoroughly
The bionical zoom microlens system of self adaptation eyeball of prescribed electrode, breaks through the application limitation of conventional zoom system, pancreatic system, realizes that zoom is micro-
Mirror is simple, flexible, stable and is miniaturized.
The technical scheme is that by the use of the polymer gel with electric rheological behaviour as lens body and self-driven
Mode, concrete scheme is as follows：A kind of bionical zoom microlens system of polymer gel eyeball, including become focus microlens and adjustable
Voltage source, becomes focus microlens and connects and composes closed-loop path by the both positive and negative polarity of wire and variable voltage source, by changing adjustable electric
The output voltage of potential source can control to become the focal length variations of focus microlens.Becoming focus microlens includes polymer gel, positive pole, insulation
Body and negative pole.Positive pole, insulator and negative pole are certain thickness donut structure, are outwards sequentially distributed by center, and surface
Concordantly, circular polymer gel is posted in three the same side.Positive pole contains through hole of the diameter less than 10mm.Polymer gel can be
The transparent electric current such as the PVC gel with plasticizer becomes gel.Positive pole and negative pole can be by copper, silver, Graphene grade height conductive foils
Or film is made, insulator can be made up of the on-deformable insulating materials such as POM.
A kind of bionical zoom microlens system of polymer gel eyeball of the present invention, becomes positive pole, negative pole energization in focus microlens
When, toward there is creeping deformation in hole, (upper and lower surface curvature sets respectively to form bent moon tee section for the polymer gel of positive pole through hole
It is R1, R2).Because creeping deformation causes through hole boundary gel lens thickness h to increase so that R2>R1, according to lens maker
Formula, therefore form zoom concavees lens.With the increase of voltage, R2>>R1, focal length will become very little.Directional light is micro- by zoom
Light is diffused on opaque optical screen during lens.The presence of insulator, concentrates polymer gel and becomes to being wriggled in positive pole through hole
Shape, and avoid being wriggled to positive pole side, can maximize creeping deformation in positive pole hole, so that focal length variations are maximum.Both positive and negative polarity it
Between voltage adjustable extent be can be according to the material of polymer gel depending on so that focal-distance tuning range be ∞~0mm.Due to logical
Electrical power is small, and energy consumption is low.
A kind of bionical zoom microlens system of polymer gel eyeball of the present invention, Combined lens include that the zoom is micro-
Mirror, convex lens, clamping device and variable voltage source.Become focus microlens and convex lens into coaxially arranged, distance is L, is filled by clamping
Put and be combined together, clamping device can be fixed structure, or allow change focus microlens and convex lens coaxially to move change
The bascule of distance.Become the distance between focus microlens and convex lens L or by variable voltage source pressure regulation control by mobile
System becomes the focal length of focus microlens, and can cause the focal length of Combined lens can change on the basis of the intrinsic focal length of convex lens.
A kind of bionical zoom microlens system of polymer gel eyeball of the present invention, focal length measuring equipment include source of parallel light,
Support, change focus microlens, translucent optical screen, ccd video camera, housing and computer.Source of parallel light, support, the master of translucent optical screen
Body is cylindrical structural, from left to right coaxial distribution.Circular hole is contained at the center of support, and focus microlens are become for installing.It is semi-transparent
Mingguang City's screen is made up of certain thickness non-light screening material so that ccd video camera can record the change of picture on right side.Housing is used for
Source of parallel light, support, translucent optical screen and ccd video camera are installed, and providing adjusts the supply unit of each device work, distance
Regulating device and change focus microlens regulator.Computer connects ccd video camera to obtain real time data.Source of parallel light is by directional light
It is radiated at and is provided with the support for becoming focus microlens, translucent optical screen obtains laser image spot, the ccd video camera arranged by right side is recorded
The change procedure of laser image spot on translucent optical screen is made, computer is pre-setting each work package distance, ccd video camera times magnification
Focal length variations are shown by software in real time under rate, power-on voltage situation.Become under can obtain different voltages by focal length measuring equipment
Focus microlens focal length variations process, response speed and focal length stationary value.
A kind of bionical zoom microlens system of polymer gel eyeball of the present invention, the advantage is that：(1) using with electric current
The polymer gel of change behavior realizes zoom behavior as lens body, self-driven mode, does not rely on fluid, stablize, facilitate,
Energy consumption is low, low cost；(2) polymer gel be located at positive and negative electrodes in same side, dismounting, it is easy for installation, without the need for transparency electrode
Clamping, do not produce prestressing force not influenceed by the transparency electrode transparency, simple structure, thickness of thin, it is easy to accomplish miniaturization；
(3) use of insulator so that deformation is maximized, focal-distance tuning range is automatically adjusted on a large scale from the zero to infinity；(4) originally
System contains focus-measuring device, can in real time reflect focal length variations process, and obtain the response speed of change focus microlens under different voltages
Degree and focal length stationary value, to provide reference to becoming using for focus microlens.
Brief description of the drawings
Fig. 1 is the bionical zoom microlens system schematic diagram of a kind of polymer gel eyeball of the invention.
Fig. 2 is a kind of deformation principle schematic diagram of the bionical zoom microlens system of polymer gel eyeball of the invention.
Fig. 3 is a kind of large deformation schematic diagram of the bionical zoom microlens system of polymer gel eyeball of the invention.
Fig. 4 is a kind of image-forming principle schematic diagram of the bionical zoom microlens system of polymer gel eyeball of the invention.
Fig. 5 is a kind of compound lens system schematic of the bionical zoom microlens system of polymer gel eyeball of the invention.
Fig. 6 is a kind of focal length measuring equipment schematic diagram of the bionical zoom microlens system of polymer gel eyeball of the invention.
In figure：1- becomes focus microlens, 2- polymer gel eyeglasses, 3- positive poles, 4- insulators, 5- negative poles, 6- adjustable voltages
Source, 7- directional lights, the opaque optical screens of 8-, 9- convex lens, 10- clamping devices, 11- variable voltage sources, 12- sources of parallel light, 13- branch
Frame, the translucent optical screens of 14-, 15-CCD video cameras, 16- housings, 17- computers.
Specific embodiment
A kind of bionical zoom microlens system of polymer gel eyeball of the present invention, as shown in figure 1, the system includes that zoom is micro-
Lens 1 and variable voltage source 6, become focus microlens 1 and connect and compose closed-loop path by the both positive and negative polarity of wire and variable voltage source 6,
Can control to become the focal length variations of focus microlens 1 by the output voltage for changing variable voltage source 6.Becoming focus microlens 1 includes gathering
Compound gel lens 2, positive pole 3, insulator 4 and negative pole 5.Positive pole 3, insulator 4 and negative pole 5 are certain thickness donut knot
Structure, is outwards sequentially distributed by center, and flush, and three posts the same side circular polymer gel eyeglass 2.Positive pole 3 contains
Through hole of the diameter less than 10mm.Polymer gel eyeglass 2 can be that the transparent electric current such as the PVC gel with plasticizer becomes solidifying
Glue.Positive pole 3 and negative pole 5 can be made up of copper, silver, Graphene grade height conductive foil or film, and insulator 4 can be not variable by POM etc.
The insulating materials of shape is constituted.
A kind of bionical zoom microlens system of polymer gel eyeball of the present invention, as shown in Fig. 2 becoming positive pole in focus microlens
3rd, when negative pole 5 is powered, the polymer gel eyeglass 2 of the through hole of positive pole 3 forms bent moon tee section toward there is creeping deformation in hole
(upper and lower surface curvature is set to R1, R2).As shown in figure 3, because creeping deformation causes through hole boundary gel lens thickness h
Increase so that R2>R1, according to lens marker's formula, therefore forms zoom concavees lens.With the increase of voltage, R2>>R1 is burnt
Away from very little will be become.As shown in figure 4, light is diffused on opaque optical screen 8 when directional light 7 is by becoming focus microlens 1.Insulator
4 presence, makes polymer gel eyeglass 2 concentrate to creeping deformation in the through hole of positive pole 3, and avoids being wriggled to the side of positive pole 3, can make
Creeping deformation is maximized in the hole of positive pole 3, so that focal length variations are maximum.Voltage adjustable extent between both positive and negative polarity is can be according to polymerization
Depending on the material of thing gel so that focal-distance tuning range is ∞~0mm.Such as a kind of PVC gel, by voltage range 0~
1kV so that focal-distance tuning range is ∞~20mm.Because energized power is small, energy consumption is low.
A kind of bionical zoom microlens system of polymer gel eyeball of the present invention, as shown in figure 5, Combined lens include institute
State change focus microlens 1, convex lens 9, clamping device 10 and variable voltage source 11.It is coaxial cloth to become focus microlens 1 and convex lens 9
Put, distance is L, is combined together by clamping device 9, clamping device 9 can be fixed structure, or allow change focus microlens
1 and the bascule of the coaxial mobile change distance of convex lens 9, such as screw-nut structure.Become focus microlens 1 and convex lens by mobile
The distance between mirror 9 L becomes the focal length of focus microlens 9 by adjusting the Regulation Control of voltage source 11, can cause Combined lens
Focal length can be changed on the basis of the intrinsic focal length of convex lens.
A kind of bionical zoom microlens system of polymer gel eyeball of the present invention, as shown in fig. 6, focal length measuring equipment includes
Source of parallel light 12, support 13, change focus microlens 1, translucent optical screen 14, ccd video camera 15, housing 16 and computer 17.Directional light
Source 12, support 13, the main body of translucent optical screen 14 are cylindrical structural, from left to right coaxial distribution.The center of support 13 contains
There is circular hole, focus microlens 1 are become for installing.Translucent optical screen 14 is made up of certain thickness non-light screening material so that CCD takes the photograph
Camera 15 can record the change of picture on right side.Housing 16 be used for install source of parallel light 12, support 13, translucent optical screen 14 and
Ccd video camera 15, and supply unit, distance adjusting means and the change focus microlens regulator for each device is worked are provided.
Computer 17 connects ccd video camera to obtain real time data.Be radiated at for directional light to be provided with and become focus microlens 1 by source of parallel light 12
On support 13, translucent optical screen 14 obtains laser image spot, and the ccd video camera arranged by right side records laser image spot on translucent optical screen
Change procedure, computer 17 in the case where each work package distance, ccd video camera enlargement ratio, power-on voltage situation is pre-set lead to
Cross software and show focal length variations in real time.Become the focal length variations mistake of focus microlens 1 under can obtain different voltages by focal length measuring equipment
Journey, response speed and focal length stationary value.
Claims (7)
1. the bionical zoom microlens system of polymer gel eyeball, it is characterised in that：Including becoming focus microlens and variable voltage source,
Become focus microlens and closed-loop path is connected and composed by the both positive and negative polarity of wire and variable voltage source, by changing the defeated of variable voltage source
Going out voltage can control to become the focal length variations of focus microlens；Becoming focus microlens includes polymer gel, positive pole, insulator and bears
Pole, positive pole, insulator and negative pole are certain thickness donut structure, are outwards sequentially distributed by center, and flush, three
Person posts the same side circular polymer gel, and positive pole contains through hole.
2. the bionical zoom microlens system of polymer gel eyeball according to claim 1, it is characterised in that：Positive pole contains
Through hole of the diameter less than 10mm.
3. the bionical zoom microlens system of polymer gel eyeball according to claim 1, it is characterised in that：Polymer coagulates
Glue is that the transparent electric current such as the PVC gel with plasticizer becomes gel.
4. the bionical zoom microlens system of polymer gel eyeball according to claim 1, it is characterised in that：Positive pole and negative
Pole can be made up of the conductive foil high such as copper, silver, Graphene or film.
5. the bionical zoom microlens system of polymer gel eyeball according to claim 1, it is characterised in that：Insulator can
It is made up of the on-deformable insulating materials such as POM.
6. the bionical zoom microlens system of polymer gel eyeball according to claim 1, it is characterised in that：It is micro- in zoom
Coaxially arranged convex lens at a certain distance from lens, and be combined together by clamping device and constitute compound lens.
7. the bionical zoom microlens system of polymer gel eyeball according to claim 6, it is characterised in that：Clamping device
It is fixed structure, or allows change focus microlens and convex lens coaxially to move the bascule of change distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621398824.XU CN206248862U (en) | 2016-12-20 | 2016-12-20 | The bionical zoom microlens system of polymer gel eyeball |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621398824.XU CN206248862U (en) | 2016-12-20 | 2016-12-20 | The bionical zoom microlens system of polymer gel eyeball |
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| CN206248862U true CN206248862U (en) | 2017-06-13 |
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| CN201621398824.XU Expired - Fee Related CN206248862U (en) | 2016-12-20 | 2016-12-20 | The bionical zoom microlens system of polymer gel eyeball |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526720A (en) * | 2016-12-20 | 2017-03-22 | 北京化工大学 | Polymer gel eyeball bionic variable-focus microlens system |
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- 2016-12-20 CN CN201621398824.XU patent/CN206248862U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526720A (en) * | 2016-12-20 | 2017-03-22 | 北京化工大学 | Polymer gel eyeball bionic variable-focus microlens system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170613 Termination date: 20191220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |