Source: https://patents.google.com/patent/WO2016133278A1/en
Timestamp: 2019-07-20 01:44:23
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Matched Legal Cases: ['Application No. 2006', 'art 100', 'art 100', 'art 300', 'art 300', 'art 100', 'art 100', 'art 300', 'art 100', 'art 100', 'art 100', 'art 300', 'art 300', 'art 100', 'art 100', 'art 100', 'art 300', 'art 300', 'art 300', 'art 300', 'art 300', 'art 300', 'art 300', 'art 300', 'art 100', 'art 300', 'art 100', 'art 610', 'art 100', 'art 300', 'art 100', 'art 300', 'art 100', 'art 100', 'art 300', 'art 100', 'art 300', 'art 100', 'art 800', 'art 300']

WO2016133278A1 - Polymer-based tunable lens, electroactive polymer therefor, and manufacturing method therefor - Google Patents
Polymer-based tunable lens, electroactive polymer therefor, and manufacturing method therefor Download PDF
WO2016133278A1
WO2016133278A1 PCT/KR2015/013623 KR2015013623W WO2016133278A1 WO 2016133278 A1 WO2016133278 A1 WO 2016133278A1 KR 2015013623 W KR2015013623 W KR 2015013623W WO 2016133278 A1 WO2016133278 A1 WO 2016133278A1
PCT/KR2015/013623
2015-02-17 Priority to KR10-2015-0024062 priority Critical
2015-02-17 Priority to KR20150024062 priority
2015-03-08 Priority to KR1020150032130A priority patent/KR101686442B1/en
2015-03-08 Priority to KR10-2015-0032130 priority
2015-12-11 Application filed by 한국기술교육대학교 산학협력단 filed Critical 한국기술교육대학교 산학협력단
2016-08-25 Publication of WO2016133278A1 publication Critical patent/WO2016133278A1/en
The present invention relates to a technology for providing a polymer-based varifocal lens using an electroactive polymer. The present invention provides a polymer-based tunable lens comprising: a plate-shaped transparent electrode layer; an electroactive part disposed on the transparent electrode layer and formed of a transparent gel-like electroactive polymer; and an electrode part disposed on or outside the electroactive part so as to be electrically insulated from the transparent electrode layer, wherein the focal distance of the lens is tunable by applying voltage to the transparent electrode layer and the electroactive part so as to change the shape of the electroactive part.
Polymer-based variable lens and the electroactive polymer and a manufacturing method therefor
The present invention relates to polymer-based variable lens technology to vary the focal length by using the electroactive polymers.
Lens is a device capable of focusing the one or more optical wavelengths. Variable lens means a possible adjustment that allows to change the focal length or the position of the lenticular lens. Compact and multi-functional development of the variable lenses are available in a miniaturized device in accordance with the trend of recent devices are being actively conducted. There are Examples, a method for controlling the shape of the lens using the hydraulic pressure, a method of controlling the shape of the LCD (Liquid Crystal), depending on the voltage applied, a method using different properties of the water (aqueous solution) and oil and the like.
However, how to control the shape of the lens using the hydraulic pressure, by operating the actuator in the structure containing the aqueous solution as to change the lens curvature in a hydraulic pressure, and there is an additional part for actuation difficult and very small upset, multifocal lens array structure is not suitable. Inducing rotation of the liquid crystal by a voltage application, and the method of changing the refractive index of light depending on the rotation angle, there is a limit on the lens focus range, it is also difficult to increase the optical properties of the lens with only a single layer structure problem. Encapsulating the aqueous solution and the oil in the lens holder, and the way of using the shape change changes the curvature between the aqueous solution by applying a voltage to the solution through the container top and bottom electrodes and the oil interface, as well as difficult to implement in a flexible shape, compact lens this is impossible to implement. In addition, an electrolyte and a method using a difference in refractive index between the nonelectrolyte solution since a high voltage is required is required auxiliary equipment for the high-voltage, and an iodine ion antioxidants are necessary to implement this method, it can not be used permanently, due to iodine sulfide there is also the problem of reducing the spectral transmittance.
On the other hand, there is a lot of research done about the method using the deformation properties of the electroactive polymer. In Japan, for filling a transparent fluid (water, lens body) inside the transparent availability of the bag-shaped film, and the deformation of the lens curvature using the deformation properties of the actuator for the lens body composed of the ion conductive polymer to be provided outside the liquid but the invention is developed (refer to Japanese Patent Application No. 2006-238391), this way is only possible only function to transform the positive lens thickness limited to a convex lens.
The present invention by modifying the shape of the transparent gel polymer, to provide an intensity change of only the force applied voltage, the focal length changes adjustable, polymer-based variable lens for that purpose.
In addition, the present invention, the polymer of the transparent gel which is provided in the inner through hole of the electrode thereby form a deformation by (applied voltage), movement of the external pressure or electron, as well as a focal length adjustment of the convex lens, as a concave lens form adjustable, to provide a polymer based on a variable lens for other purposes.
In addition, the present invention, by further comprising a lens protective film on the polymer top of the transparent gel which is provided in the inner holes of the electrodes, to provide a foreign matter or the outside which can prevent the gel is broken by the touch, the polymer-based variable lens and that another purpose.
In addition, the present invention is a mixture of PVC (Polyvinyl chloride) and a plasticizer gel (gel) by producing a state, fast and, having any optical properties, as well as the convex-shaped polymer-based variable lens which can change to a concave shape to provide an electroactive polymer and a method of manufacturing suitable for producing a still another object.
The present invention, plates in the form of a transparent electrode layer; It is provided on top of said transparent electrode layer, electrically active part is formed of electroactive polymer of the transparent gel; The focal length is included to, and being a voltage to the transparent electrode layer and the electrode part is in the form the electrically active parts of shift; and is provided so as to be insulated by the transparent electrode layer and electrically the electrode portion which is provided on the upper or outer side of said electric activation to provide a variable lens of the polymer-based variable.
In one embodiment, the electrode portion of the center through hole is circular, is formed into an oval or polygon may be provided to be spaced apart from the electrically active part.
It may also be formed, including the longitudinal side of the cylindrical form for connecting the electrode portion of the ring-shaped upper and lower surfaces and inner side of the upper and lower surfaces.
In addition, the vertical surface of the electrode portion of the ring-shaped bottom surface, and includes a vertical surface of cylindrical form which is connected to the inner side of the bottom surface, it may be formed to be narrower toward the top.
In addition, the vertical surface may be of a concave or convex surface.
Further, the lower surface may be provided in parallel with the transparent electrode layer.
In addition, all or part, and the lower side of the vertical plane can be brought into contact with the electrically active part.
In one embodiment, a lens protective film to block external foreign materials or contact with the upper portion of which constitutes the active part of the electric lens is provided additionally.
Further, according to various aspects of the present invention there is provided the following example as in the same.
The electrode portion may be is provided vertically with respect to the transparent electrode layer, a part of the electrical active part forms a pillar type part on an inside of the electrode portion, the recess is formed within the surface of the electrode portion. The electrode parts of the upper part is provided with an auxiliary electrode is added additional insulation and the electrode portions, the secondary electrode portion and the electrode portion may be applied with a separate voltage.
The electrically active portion may be the electrode portion according to including a portion above the formed columnar shape, and the voltage applied to the poles form part of the formation ridorok lead to the upper electrode portion. Here, the top surface of the pillar shape portion may be provided concavely in a state not applied with a voltage.
The electrode portion may each be provided with parts of the electrical voltage condition of the first electrode portion and a second electrode laminated in isolated, the first electrode portion and the second electrode unit can be applied.
Supporting said electrode and the electrode support portion forms a surface spaced from the transparent electrode layer, and comprising a mesh electrode provided in the electrode supporting the bottom, can be added to the falling the transparent electrode layer and the support the electrode upon application of voltage to the mesh electrode part is. Also, without applying a voltage to the mesh electrode part, when applying a voltage to the electrode section it can be transformed into the electrical active part a concave lens.
Between the transparent electrode layer and the electrode portion is provided with an EAP actuator that includes an EAP layer and the working electrode, by the operation of the EAP actuators the electrode portion and the transparent electrode layer is closer can be the electrical active part deformed to a convex lens .
The transparent electrode layer is provided so as to be formed to a convex surface, the electrically active portions are provided on the inner side of the convex surface of the transparent electrode layer to form the central portion is thicker than the outside, the electrode portion surrounding the outside of the electrical active part, when the voltage applied to the transparent electrode layer and the electrode section activate the electric parts can be transformed into a meniscus negative lens.
The electrode portion has a hemispherical shape or cross-section can be provided in the form covering the upper portion forms an arc-shape of said electric activation.
The electrode portion may be provided with a convex surface on the transparent electrode layer and spaced apart and the electrically active part.
In addition, the present invention may be the electroactive polymer forms the electrical activation of the polymer-based variable lens, a mixture of a plasticizer PVC (Polyvinyl chloride) provides the electroactive polymer to be produced gel (gel) the electrical activity of the state gel.
In one embodiment, the plasticizer is phthalate (Phthalate) sealed DBP (Di-butyl-phthalate), DEHP (= DOP, Di-2-ethylhexyl phthalate), DOP (Dioctyl phthalate), DOTP (Dioctyl terephthalate), DINP (Di-isononyl phthalate), DIDP (Di-isodecyl phthalate), BBP (Butyl benzyl phthalate), non-phthalate (non-phthalate) sealed ATBC (Acetyl tributyl citrate), citrate (citrate) sealed TBC (tributyl citrate), benzo Eight (benzoate), is used to select a sulfonate (sulfonate), at least one of a cyclo hexanoate (cyclohexanoate), trimellitic (Trimelli).
In addition, the electroactive polymer, physically crosslinked is made of a film form, 0.1 to be produced is made to have a thickness of 2.0 mm, in the wavelength range of 350 ~ 800 nm -1 to have a 70 to 95% transparency is.
In addition, the PVC is the after dissolving the PVC powder in THF (Tetrahydrofuran) or prepared in accordance with the first generation process for the purification by washing with an alcohol, or dissolve the PVC powder in the THF precipitated in alcohol and the resulting solid It is made to precipitate in accordance with a second generation process for washing to give a the alcohol, wherein the first generation process or the second process is created, can be carried out 2 to 10 times repeatedly.
In addition, the alcohol may be, respectively, n-propanol, isopropanol, ethanol, any one selected from methanol.
In addition, after dissolving by the electroactive polymer is added to the PVC in THF, and stirred, was stirred into the plasticizer, or prepared in a first manner to obtain a mixed solution, to inject the plasticizer in THF, and stirred for dispersion which then was stirred into the PVC or manufactured in a second manner of obtaining a mixed solution, and the PVC and a plasticizer stirred and then added to THF,, dissolving can be prepared by a third method of obtaining a mixed solution .
In addition, the PVC and a plasticizer, 1 is added in a proportion of 1 to 25, and may be stirred at a rate of 200 ~ 1000 rpm for at least an hour.
In addition, the mixed solution is dropped, but the vessel or after drying, or evaporative drying, was evaporated for at least an hour, can be obtained by removing the THF solvent remaining was vacuum dried for at least 1 hour.
In another aspect, the present invention, PVC with (Polyvinyl chloride) a first step for dissolving the powder in a solvent, and the second step of the lysate obtained in the first stage drying was precipitated in alcohol, produced through the second step and a third step of drying the solid precipitate was purified by washing with alcohol, and a fourth step of the first stirring and then added to the PVC and the plasticizer prepared in step 3 in a solvent, the obtained through the first step 4 after drying or evaporation of the mixed solution and dried to provide the method of manufacturing the electroactive polymer comprising a step 5 which is made of an electrically activated gel of the gel (gel) state.
According to the proposal, and the polymer-based variable lens and a lens focal length adjustment, which method in the present invention, an electrode portion that is inside the circular or elliptical shape, or a polygon forming an electrode through hole, the transparent electrode layer is provided with a predetermined distance from the electrode portion at the bottom, the inside aperture of the electrode, and the electrode portion and the transparent electrically provided between the electrode layer active portion, consists of a voltage supply to form an electric field to the electrode portion, the deformation in the form of a polymer of the transparent gel which is provided in the inner through hole of the electrode by , only the intensity variation of the applied voltage, it is possible to adjust the focal length change.
According to the present invention, as being a polymer of the transparent gel form it is deformed by external pressure or the movement of the E (applied voltage), as well as a focal length adjustment of the convex lens, a concave lens shape which is provided on the inside through hole of the electrode also it is adjustable.
In addition, according to the present invention, by further comprising a protective lens on top of the transparent polymeric gel which is provided on the inside of the through-hole electrode it can be prevented that the gel is broken by the foreign matter or the external contact.
On the other hand, according to the present invention electroactive polymer and a production method suitable for preparing a polymer based on a variable lens in accordance with, a mixture of PVC and a plasticizer by preparing the polymer of the transparent gel, and a rapid shape change is possible, having any optical properties , an electroactive polymer that can be changed are provided as well as the convex-like concave shape.
In addition, the present invention is to dissolve the PVC powder in THF and then precipitated with alcohol and dried to produce a cleaning and pure PVC the solid precipitate, the prepared PVC and plasticizer 1: stirring in THF at a rate of 1 to 25 by after drying, a soft, transparent, and can be cross-linked physically to produce the electroactive polymer suitable for preparing the environmentally-friendly and, polymer-based variable lens.
1 is a view showing a schematic configuration of a polymer based on a variable lens according to a first embodiment of the present invention.
Figure 2 is a perspective view showing a polymer-based variable lens according to a first embodiment of the present invention.
3 and 4 are diagrams showing the drive mechanism of the polymer based on a variable lens according to a first embodiment of the present invention.
Applying a polymer based on a voltage variable lens in accordance with a preferred embodiment of the present invention, Figure 5a to 5c and a view showing a state in which the curvature of the lens changes.
6 and 7 is a diagram showing a polymer based on a variable lens according to a second embodiment of the present invention.
Figure 8 is a flow chart of a manufacturing process of the electroactive polymer used in the polymer-based variable lens in accordance with a preferred embodiment of the present invention.
9 is a view showing another transparency with a mixing ratio of PVC and a plasticizer as the electroactive polymer used in the polymer-based variable lens in accordance with a preferred embodiment of the present invention.
10 to 12 are diagrams of the polymer based on a variable lens according to a third embodiment of the present invention.
Figure 13a and Figure 13b is a diagram showing a polymer based on a variable lens according to a fourth embodiment of the present invention.
Figure 14a to Figure 14c is a diagram showing a polymer based on a variable lens according to a fifth embodiment of the present invention.
Figs. 15a and 15b is a diagram showing a polymer based on a variable lens according to a sixth embodiment of the present invention.
Figure 16a to Figure 16c is a diagram showing a polymer based on a variable lens according to a seventh embodiment of the present invention.
Figure 17a to Figure 17d is a diagram showing a polymer based on a variable lens according to a eighth embodiment of the present invention.
Figure 18a to Figure 18c is a diagram showing a polymer based on a variable lens according to a ninth embodiment of the present invention.
Figure 19a and Figure 19b is a diagram showing a polymer based on a variable lens according to a tenth embodiment of the present invention.
Figure 20a and Figure 20b is a diagram showing a polymer based on a variable lens according to a eleventh embodiment of the present invention.
Figure 21a and Figure 21b is a diagram showing a polymer based on a variable lens according to a twelfth embodiment of the present invention.
Figure 22a to Figure 22c is a diagram showing a polymer based on a variable lens according to a thirteenth embodiment of the present invention.
Figure 23a to Figure 23c is a diagram showing a polymer based on a variable lens according to a fourteenth embodiment of the present invention.
With reference to the accompanying drawings a preferred embodiment of the present invention will be described in detail. First, in addition as the reference numerals to components of each drawing, for the same elements even though shown in different drawings It should be noted that and to have the same reference numerals as much as possible. In addition, would explain the preferred embodiments of the invention In the following, that the technical concept of the present invention can be variously practiced with modification by one of ordinary skill in the art is not limited or restricted thereto as a matter of course.
In addition, throughout the specification, to that which is part of the "connected" with another part, which even if it is the case that is "directly connected to", as well as, interposed between the other element or intervening "indirectly connected to" It includes. In addition, it should "include" any component, it means that not to exclude other components not specifically described that are opposite may further contain other components.
1 is a view showing a schematic configuration of a polymer based on a variable lens in accordance with a preferred embodiment of the present invention.
1, from the lower end of the polymer based on a variable lens, which is inside a circle or an ellipse, or a polygon forming an electrode through hole electrode 100, the electrode part 100 according to an embodiment of the present invention connected to electrical activation unit 300, and the electrode portion and the transparent electrode layer provided between the transparent electrode layer 200, the through hole inside of the electrode and the electrode section 100 and the transparent electrode layer 200 is provided in advance with a predetermined distance It can comprise a voltage supply unit 400. Polymer-based variable lens according to the present invention, modifying the surface geometry of the electrical activation unit 300 is configured from a polymer which is provided on the inner holes of the electrodes constituting the applied to the electrode unit 100, a voltage to the electrode unit 100 to further characterized in that the focal length varies.
Electrode portion 100 can be formed in a circular or elliptical, or polygonal electrode inside the through hole. Circular or elliptical, or polygon can be applied in various forms according to an embodiment. Electrode portion 100 is connected to the voltage supply unit 400 may be formed when the electric field applied voltage. According to one embodiment of the invention, may be connected to the + pole of the voltage supply unit 400, when a voltage is applied, the entire electrode unit 100 may sensibly the + pole. On the other hand, the transparent electrode layer 200 is of a voltage supply (400) can be coupled with play, when a voltage is applied, the whole transparent electrode (200) can be sensibly the pole.
Figure 2 is a perspective view showing a polymer-based variable lens in accordance with a preferred embodiment of the present invention.
2, the in the polymer based on a variable lens in accordance with one embodiment of the present invention, the electrode unit 100 and the lower surface the upper surface 110 and lower surface 120 and upper surface 110 ( 120) can be configured to include a vertical surface 130 connecting the vertical direction. One end face of the electrode section 110 may be composed of a substantially "c" shape, as illustrated in the following Fig. In one embodiment, the vertical surface 130 may be located in the central portion (inside) of the electrode portion 100. The However, having any one of the in the practice of the invention, the electrode unit 100 may be a type having a connection only 130, the vertical surface 130 and the upper surface 110 or lower surface 120 which can be a form of course.
Side, is bent and composed of an upper surface 110 and vertical surface 130, which is connected to one end and a direction perpendicular to the top surface 110, the vertical surface 130 of the electrode section 100 includes the It may be located in a central portion of the electrode member (100). According to a further embodiment, the side surface of the electrode portion 100 is formed bent and configured in a vertical plane 130, which is connected to one end perpendicular to the direction of the lower surface 120 and the bottom surface 120, the vertical surface 130 may be located in a central portion of said electrode member (100). In another embodiment, the side surface of the electrode portion 100, may be configured to include an upper surface 110 and lower surface 120 that is parallel to and formed above the upper surface (110).
3 and 4 are diagrams showing the drive mechanism of the polymer based on a variable lens in accordance with a preferred embodiment of the present invention.
Figure 3 is a view before application, Figure 4 is a diagram showing a voltage is applied when the shape of the electrical activation unit 300 strain. Figures 3 and 4, the electrode part 100 electrode constituting the are, in cross-section a "c" shape, the upper surface of the donut shape 110, and the bottom surface 120 and top surface (110 ) and it may be of a vertical surface 130 of a cylindrical shape for connecting the inner side of the lower surface (120). In addition, the top surface 110 of the electrode section 100 is connected to the voltage supply unit 400, some or all, and the lower surface 120 of the vertical face 130 is in contact with the electrical activation unit 300 can.
Be this way the vertical surface 130 is widened, the area of ​​the upper surface 110 and lower surface when adopting the electrode structure connected to the inner side of the 120, a transparent electrode layer electrode member (100) in parallel position and 200 It is (that is, the area of ​​the lower surface 120 facing the transparent electrode layer 200 is secured).
Therefore, when a voltage is applied (Fig. 4), passing through the electrical active part 300 in the electrode unit 100, it facilitates the formation of an electric field to the transparent electrode layer 200, and the voltage application efficiency can also be increased. In addition, the area of ​​the electrode portion 100 is parallel to the position of the transparent electrode layer 200 becomes wider. Thus can be enhanced when no voltage is applied as shown in Figure 4, through the electrical active part 300 in the electrode 100, the current flow becomes smooth when the current flows in the transparent electrode layer 200, the voltage application efficiency.
On the other hand, the transparent electrode layer 200, as being provided with a predetermined distance from the lower end of the electrode portions 100, connected to the voltage supply unit 400 when voltage is applied, - the pole can be sensibly. The transparent electrode is, as meaning an electrode with a light-transmissive and electrically conductive, a thin film such as tin oxide, indium oxide, platinum, gold may be deposited on the glass. Further, the transparent electrode, Graphene, CNT, may be a material having high transparency and high conductivity, such as a thin metal film such as Ag nanowires, ITO (Indium Tin Oxide) or Au, Pt is used.
To the function of the lens to the light transmission, so demands, use of a transparent electrode on the electrode layer 200 to form the lower end of the variable lens proposed in the present invention.
Electrical activation unit 300, may be composed of a polymer of the transparent gel, preferably electroactive polymer: can be a (Electroactive Polymer EAP). Since the electrical activation unit 300 is also to perform the role of the lens to be provided with the properties of the "transparent", and the voltage applied to whether the surface to be modified according to the form may be a form of a polymer gel (polymer gel). The polymer, as a compound that has one kind or several kinds of the structural unit is a polymerization of a number of chemical bonding to each other, according to one embodiment of the present invention, general versatility, such as polyvinyl chloride (PVC), high density polyethylene, low density polyethylene It can be a constituent of electrical activation unit 300 of the present invention by using a polymer.
Voltage supply 400 is connected to the electrode part 100 and the transparent electrode layer 200, a voltage to form an electric field at the electrode portion 100 is applied.
On the other hand, if the voltage to the electrode unit 100 is applied, the electrode portion 100 is noticeably the + pole, the electric field is formed, the electrical activation unit 300 is moved toward the electrode portion 100 striking the + pole contact area is to be increased. If the contact area of ​​the electrical activation unit 300 and the electrode part 100 is increased, the center thickness of the electro-active member 300 becomes thinner to correspond thereto. Using this phenomenon it is possible to adjust the focal length of the lens.
Electrical activation unit 300, may be provided between the through holes of the inner and the electrode portion 100 of the electrode and the transparent electrode layer 200, the electrical active part 300 provided in the inner through hole of the electrode surface form a variable may then be the function of a convex (Fig. 3) or concave (Fig. 4) lens. Provided between the electrode part 100 and the transparent electrode layer 200 is to serve as connecting electrical activation unit 300, a voltage applied when the current to the transparent electrode layer 200 in the electrode part 100 to flow can.
Specifically, the polymer of the transparent gel which is provided in the inner through hole of the electrode, the applied voltage to the electrode unit 100 before due to the external pressure, one forms a convex surface curved surface, after applying voltage to the electrode unit 100 is an electric field by the movement of electron caused by the generation can be surface forms a concave curved surface. In addition, it stops the voltage application, return to the convex lens phenomenon. In this way, by controlling the voltage applied to the electrode 100, it is possible to change the curvature of the lens surface continuously adjusting the focal length of the lens and the positive lens as well as to the negative lens. That is, the shape by moving into the electron and the electrode part 100 by their voltage applied gel electroactive member 300 may vary with a concave shape in a convex initial shape, and stops the voltage application, a convex lens shape you can come back.
Figure 5a is without applying a voltage, Figure 5b is a state changed to a planar lens by applying a voltage, Figure 5c to apply a higher voltage as compared to Figure 5b shows a state changed to a concave lens. In the state in which voltage is not applied to the electrode unit 100, the electrical active part 300 maintains a convex one (Fig. 5a), the electrode portion 100 and the transparent electrode layer 200, electrical As a voltage is applied to the active portion the polymer gel constituting the form 300 changes the yikkeulrieo curvature as the electrode member (100).
As Figure 6 and shown in Figure 7, the polymer top of the transparent gel which is provided in the inner through hole of the electrode, the foreign matter or by the outer contact lens to prevent the gel is broken the protective film 500 may be further provided with is. The polymer of the transparent gel may be a bar, which is damaged by an external stimulus, so as to protect the polymer by adding a lens protective film 500. The A lens protective film 500 as shown in Figure 6, can be made independent of the deformation of the electro-active member 300 to maintain the original form. However, in the practice of the invention, lens protective film 500 is configured to form a deformed together according to the configuration of a material having the flexibility to contact a surface of the electro-active part 300 in the form of deformation of the electroactive unit 300 You may.
Referring to the method for adjusting the focal length of the variable lens of a polymer-based, according to one embodiment of the present invention. The transparent electrode layer 200 which is provided with a predetermined distance from the lower end of the electrode 100, the electrode portion 100 formed by the interior of the through-hole electrode, is composed of a polymer of the transparent gel, the aperture inside and the electrodes of the electrode forming an electric field in the portion 100 and the electrical activation unit 300, and the electrode unit 100 and the transparent electrode layer is connected to 200, the voltage applied to the electrode part 100 provided between the transparent electrode layer 200 and a voltage supply unit 400 to form a lens structure consisting of.
Using the distance, and deformation coefficient of the polymer on the voltage compared to a transparent gel with in the formed lens structure, the width of the through hole inside of the electrode, the electrode part 100 and the transparent electrode layer 200, the electrode portion on the voltage supply unit 400 and calculates a voltage to be applied to 100.
Applying the calculated voltage to the electrode unit 100 is the + pole, a transparent electrode layer (200) - a noticeable play, transforms the type of the polymer on the transparent gel. The voltage applied by the voltage supply unit 400 may be a polymeric form of the transparent gel modified by the amount, which as previously described, it is deformable in a convex lens to a concave lens.
Thus, by controlling a voltage applied to the lens deformation, the focal length can be adjusted. In addition, the degree of the lens shape deformation may be calculated using the distance, and a voltage contrast deformation coefficient of the transparent gel polymer with the width of the through hole inside of the electrode, the electrode part 100 and the transparent electrode layer 200.
Next, a description will be given to an embodiment of the electroactive polymer (EAP) for implementing the polymer on the gel constituting the electrical active part 300 of the polymer-based variable lens in accordance with a preferred embodiment of the present invention.
8 is a flow chart of a manufacturing process of the electroactive polymer used in the polymer-based variable lens in accordance with a preferred embodiment of the present invention, Figure 9 is electroactive used in polymer-based variable lens in accordance with a preferred embodiment of the present invention as the polymer is a view showing the transparency in accordance with the mixing ratio of the PVC and the plasticizer.
Electroactive polymer constituting the electrically active part 300 included in the polymer based on a variable lens in accordance with a preferred embodiment of the present invention, a mixture of PVC (Polyvinyl chloride) and a plasticizer made of electroactive polymer of the gel (gel) state It can be. Here, the plasticizer having excellent compatibility with PVC materials, phthalate (Phthalate) sealed DBP (Di-butyl-phthalate), DEHP (= DOP, Di-2-ethylhexyl phthalate), DOP (Dioctyl phthalate), DOTP (Dioctyl terephthalate), DINP (Di-isononyl phthalate), DIDP (Di-isodecyl phthalate), BBP (Butyl benzyl phthalate), non-phthalate (non-phthalate) sealed ATBC (Acetyl tributyl citrate), citrate (citrate) sealed TBC (tributyl Citrate), benzoate (benzoate), may be used to select a sulfonate (sulfonate), at least one of a cyclo hexanoate (cyclohexanoate), trimellitic (Trimelli).
Moreover, the first generation process of at least three to yield at least twice with an alcohol (for also example, n-propanol, isopropanol, ethanol, and selecting one of methanol) was dissolved in the PVC is the PVC powder in THF (Tetrahydrofuran) depending on can be made.
In addition, PVC is dissolved an alcohol (e.g., n-propanol, isopropanol, ethanol, and also selecting one of methanol) was precipitated in and the resulting solid precipitate the PVC powder in THF (Tetrahydrofuran), alcohols (for example, n-propanol, isopropanol, ethanol, may be produced according to the second generation process of at least three to yield two or more times to also select any one of the methanol).
A first generation process, or when the PVC be prepared by repeating ten times a second generation process can be purified to a high purity.
In the process of manufacturing the electroactive polymer, wherein the first generation process, or the first system to inject a PVC prepared in a process, such as a second generation process in THF and the mixture was stirred to give a mixed solution was stirred into the plasticizer was dissolved , it was added a plasticizer in THF and the mixture was stirred and dispersed, a commitment was stirred into the prepared PVC the second scheme, the prepared PVC and a plasticizer to obtain a mixed solution in THF, followed by stirring and dissolution to obtain a mixed solution it is possible to obtain a PVC mixture in three ways.
Here, PVC and plasticizer is from 1: can be mixed in a proportion of 1 to 25, can be stirred at a speed of 200-1000 rpm for at least an hour. In addition, a plasticizer may be used in selecting any one of a superior and available ATBC, compatibility with PVC In addition to ATBC as described above, DBP, DEHP, DINP, DIDP, DOTP, BBP, and TBC.
Thereafter, to the resultant mixed solution was dried drop cast (drop cast) method to drop the container after drying, or evaporation is prepared as a gel, evaporated for at least an hour and vacuum dried for at least 1 hour residual THF of it is possible to remove the solvent, the electroactive polymer can be prepared in the form of a film cured by physical crosslinking, and the electroactive polymer can be made to have a thickness of 0.1-2.0 mm.
In addition, these electroactive polymers can be produced so as to have a transparency of 70-95% in the wavelength range of 350-800 nm -1.
By an electroactive polymer described above is a mixture of PVC and a plasticizer manufacturing the electroactive polymer to gel, and a fast, having any optical properties, and may have a characteristic that can be changed, as well as a convex shape to a concave shape.
Referring to a method of manufacturing the electroactive polymer described above with reference to Figure 8 again, as follows.
PVC after dissolving the (Polyvinyl chloride) powder in THF (Tetrahydrofuran) (S302), the lysate obtained in the above step S302 may be precipitated in alcohol, dried (S304). Here, the alcohol can be selected for any of n-propanol, isopropanol, ethanol, methanol.
The following is to be, to the cleaning of two or more alcohols as the solid precipitate produced through the step S304 at least once to obtain the dried (S306). Here, the alcohol can be selected for any of n-propanol, isopropanol, ethanol, methanol.
On the other hand, the process of S302 to S306 may be performed 2 to 10 times repeatedly in order to purify the PVC with a high purity (S308). Of course, in the step S308, if there can be prepared a PVC purified by suitably high purity to the electroactive polymer lens in a process of S302 to S306 may be omitted.
Here, in the embodiment of the present invention described as being made in accordance with the second generation process for the purification by washing at least twice with the dissolving the PVC powder in THF (Tetrahydrofuran) precipitated in alcohol and the resulting solid precipitate with alcohol however, the PVC powder is dissolved in THF may be prepared in accordance with the first generation process of at least three to yield two or more times with an alcohol as a matter of course.
A first generation process or the second generation process as described above may be purified, PVC being carried out 2 to 10 times repeatedly at high purity.
Next, insert the PVC and the plasticizer produced through the step S306 or S308 in THF can be stirred (S310).
After the step S310 after the prepared PVC dissolved was put in THF, and stirred, followed by stirring into a plasticizer In the first scheme, a plasticizer to obtain a mixed solution in THF, and stirred and dispersed with stirring into the prepared PVC It was then added to a second scheme, the prepared PVC and a plasticizer to obtain a mixed solution in THF, stirred and dissolved it is possible to obtain a mixed solution in a third way as to obtain a mixed solution.
Here, PVC and plasticizer is from 1: is added at the rate of 1 to 25, and can be stirred at a speed of 200-1000 rpm for at least an hour, plasticizers excellent in compatibility with DBP PVC, DEHP, DINP, DIDP, of DOTP, BBP, ATBC, TBC can be used to select any of them.
Then, the S310 drying away the mixed solution obtained through the step to the container, or after the evaporation to dryness can be produced in the electroactive polymer gel state (S312). Here, the mixed solution is at least evaporated for 1 hour, can be at least 1 it can be vacuum dried to remove residual THF solvent for a time, producing the electroactive polymer in the film form cured by physical cross-linking, its electrical active polymer can be prepared to have a thickness of 0.1-2.0 mm.
The variable lenses for preparing electroactive polymer prepared by the process above, can appear different from the transparency in accordance with the mixing ratio of PVC and a plasticizer as shown in FIG.
Referring to Figure 9, the horizontal axis represents the wavelength of Wavelength (nm -1), for indicating Transmittance (%) in the ordinate is the transparency, in the case of the transparency (0 ePVC) of the state that put the plasticizer 350 (nm -1) rapidly increased to a wavelength indicated a 80% transparent transparent to reach a wavelength longer the curve form appears with the bending between the 80-90% transparency ground, mixed with the plasticizer at a ratio of 5 ~ 15 (ePVC 5, ePVC 7 , the ePVC 10, ePVC 12, ePVC case of 15), 350 (rapid increase up to the wavelength of the -1 nm) to a longer wavelength polyhydric indicate the transparency of 85% has the winding between the 85-90% transparency when ePVC 0 If it can be seen that having a relatively uniform transparency than in.
Therefore, PVC and plasticizer is from 1: may be mixed at a ratio of 5-15: 1 and at a rate of 25 can be mixed, preferably 1.
By drying after stirring in THF at a rate of 5 - 15: the present invention is to dissolve the PVC powder in THF and then precipitated with alcohol by washing the solid precipitate to produce a PVC, the resultant PVC and plasticizer 1 smooth, transparent, and can be cross-linked physically to produce the electroactive polymer in gel form suitable for preparing the environmentally-friendly and, polymer-based variable lens.
Next will be described a configuration of a polymer based on a variable lens according to another embodiment of the present invention. In the following description, the description of the overlap of the polymeric variable lens described in the previous configuration and the description will be omitted, and with the focus on the differences.
10, the polymer-based variable lens according to a third embodiment of the present invention is provided with a transparent electrode layer 200, the electrical active part 300, and an electrode member (100). Electrode unit 100 is configured including a barrel shape of the vertical surface (130) connected to the inside of the donut shape of the lower surface 120 and the lower surface 120, the vertical face 130 is toward the top It is formed to be narrowed. If the voltage on the electrical activation unit 300 is applied, the electrical active part 300 becomes the curvature of the lens cover to move the electrode member (100) orientation. Vertical surfaces 130 are formed to be inclined when the inward movement of the electrical active part 300 when the voltage is applied can be made easier.
11, the vertical surface 130 may be formed so as to convex toward the inner side. Further, referring to Figure 12, the vertical surface 130 may be formed so as to recess to the inner side.
Figure 13a and Figure 13b is a view showing a polymer based on a variable lens according to a fourth embodiment of the invention, Figure 14a to Figure 14c is a view showing a polymer based on a variable lens according to a fifth embodiment of the present invention to be.
Figure 13a is a state before a voltage is applied, Fig. 13b shows the state where a voltage is applied.
The polymer based on a variable lens according to the fourth embodiment, the transparent electrode layer 200, the electrical active part 300, and but having an electrode portion 100, the inner surface of the electrode portion 100 recessed portion 102 characterized in that formed.
In a side recess 102 is formed, the inside of the electrode unit 100 is provided with a part of the electrical active part 300 is formed in a pillar shape portion 302, a column form part of the electro-active member 300 (302) is the shape that surrounds the electrode (100).
FIG until the voltage is applied to the electrical activation unit 300, as shown in 13a is a maintaining a convex lens shape, when a voltage is applied as shown in Figure 13b electrical activation unit 300, the curvature is changed to a concave lens shape. In this case, electricity, electrical activation of the concave portion 102 when 300 is to be changed yikkeulrieo the electrode member (100) orientation as the formed recess 102 in the inner surface of the electrode portion 100 is active portion ( 300) is deformed so as to be in contact as to facilitate the lens curvature changes.
The structure of the polymer based on a variable lens according to the fifth embodiment shown in 14a to Figure 14c is in that it is provided in the fourth embodiment and the same, the auxiliary electrode 104 is added to the top of the electrode 100 there is a difference. The electrode portion 100 and the auxiliary electrode 104 are insulated from each other and are separately applied with a voltage.
Figure 14a is a state before the voltage is applied, Figure 14b is applied to the first positive voltage to the transparent electrode layer auxiliary electrode 104, a negative voltage to the 200 state. In Figure 14b, the top of the pillar type part of the electro-active portions 300, 302 is deformed ridorok lead to the secondary electrode (104). Then, by applying a second positive voltage to the electrode unit 100, as shown in Figure 14c, pillar shape portion 302 of the electrical activation unit 300, an electrode portion in the upper end portion attached to the auxiliary electrode 104, the state Waiting lead to the recess 102 of 100 is changed to the negative lens having a larger surface.
Figure 15a is a state before the voltage is applied, Figure 15b is the applied voltage state.
The polymer based on a variable lens according to the sixth embodiment, but provided with a transparent electrode layer 200, the electrical active part 300, and the electrode part 100, the electrical active part 300 above the electrode unit 100 formed in the pillar form part of the state 302 it is included, and a voltage is applied (Fig. 15a), an upper surface of the pillar shape portion 302 is formed in the recess.
When a voltage is applied (Fig. 15b), the upper surface of the pillar shape portion 302 is yikkeulrieo pillar shape portion with the electrode unit 100, 302 is convexly change.
The polymer based on a variable lens according to the seventh embodiment is characterized in that a, but similar to the first embodiment, the electrode part 100 is divided into a first electrode unit 100-1 and the second electrode portion 100-2 .
While voltage is not applied (FIG. 16a), a transparent electrode layer (200) constitutes a convex lens, a condition bottom part of the convex lens is in contact with the first electrode portion 100-1. Applying a negative voltage to the transparent electrode layer 200 and the cathode by applying a voltage to the first electrode portion 100-1, a transparent electrode layer 200 is changed as shown in Figure 16b, or the positive lens is more flat, planar or it is changed slightly concave. Then, by applying a first positive voltage, in addition to the second electrode portion 100-2, as shown in FIG. 16c transparent electrode layer 200 is changed to a concave lens shape. Accordingly, it is a lens shape change enables having a greater displacement.
Referring to Figure 17a, with the preferred eighth embodiment in the polymer-based variable lens, the transparent electrode layer 200, and an electric activating unit (300) which is provided on its top, said electric activating unit 300 according to the present invention a distance apart and spaced from the electrically active portion 300 and the electrode unit 100, and the electrode support portion 600 and the electro-active member 300 is supported by the electrode support portion 600 for forming the spaced-apart surfaces and a mesh electrode 610 are provided in a space.
Electrode support portion 600 may be of a non-conductor. A mesh electrode 610 are provided on the lower surface of the electrode support portion 600 is an electrode having a mesh shape, the mesh electrode part 610 may be a state bonded to the electrode support portion (600). Mesh electrode 610 and electrode portion 100 may be insulated from each other. Further, the electrode support portion 600 for supporting the electrode unit 100 may be configured to be movable up and down if the external force is acting.
Figure 17b is applied on the positive voltage to the transparent electrode layer 200 is a negative voltage, and the mesh electrode 610 in state. Rimyeo lead to the mesh electrode 610 is activated electrical unit 300 by the voltage applied to the mesh electrode 610, an electrode support portion 600 can be lowered. Electrode support portion 600 is pressed an electrical activation unit 300, the electrical activation unit 300 is changed to a convex lens shape.
Then, by applying a separate voltage to the anode electrode portion 100 as shown in Figure 17c, a portion of the electrical activation unit 300 are attracted by the electrode member (100) orientation is changed to a more flat lens shape.
Figure 17d is, as the state removing the positive voltage applied to the mesh electrode 610, electrode support 600 is raised, and the electrical activation unit 300, a change to a more yikkeulrieo concave lens form the electrode unit 100, the direction do.
Polymer-based variable lens according to a ninth embodiment of the present invention, the transparent electrode layer 200, the electrical active part (300), and comprising an electrode portion 100, the transparent electrode layer 200 and the electrode member (100 ) it is characterized in that connected to the EAP actuator 700.
EAP actuators 700 may be a pillar structure for connecting the transparent electrode layer 200 and the electrode unit 100. The Further, the lower and upper end of the EAP actuator 700 is fixed to the transparent electrode layer 200 and the electrode unit 100, respectively.
Referring to Figure 18a, as the state before the voltage is applied, electric activation unit 300 is available in a flat shape. The EAP actuator 700 includes an EAP layer 710, a pair of working electrodes (720, 730) provided in the upper and lower surface of the EAP layer 710. It said working electrode (720, 730) is isolated from the electrical and electric activating unit 300 and the electrode unit 100. The
Figure 18b shows a positive lens formed of the working electrode when a voltage is applied (720, 730) is lowered EAP layer 710 is contracted electrode part 100, and the electrical activation unit 300 is pressed.
Since as shown in Figure 18c, the working electrode (720, 730) by removing the applied voltage, and applied to an electrode on the transparent electrode portion 100 and electrode portion 200, the electrical active part 300 in the modification to the negative lens do.
Polymer-based variable lens according to a tenth embodiment of the present invention, there is provided in the upper portion of the transparent electrode layer 200, the transparent electrode layer 200, forming a convex surface electrical activation is a central portion provided with a thick form than the outer It includes a portion 300 and the electrode unit 100 which is provided on the outside of the electrically active portion 300.
Figure 19a is a state that is not applied with a voltage, the transparent electrode layer 200 is provided as a convex shape, as provided with the electric activating unit 300 of the center portion is thicker form than the outer to the inner surface, methoxycarbonyl the meniscus convex lens It is provided.
Figure 19b is a state of voltage is applied, a portion of the electrical activation unit 300 are attracted to the electrode part 100 is transformed into an electrical activation unit 300, a meniscus negative lens thinner center portion of the.
Polymer-based variable lens according to a eleventh embodiment of the present invention, the transparent electrode layer 200 and the and the upper portion includes an electric activating unit (300) provided in the electrode portion 100 is a semi-spherical shape or cross-sectional circular arc shape characterized in that the forming. At this time, the electrical active part 300 is a hemispherical cross-section or is provided in a space between the circular arc shape of the electrode part 100 and the electrical active part (300). Here, the electrode section 100 is provided with a part at least of a transparent form. In addition, in one embodiment, the electrode part 100 is formed of a resin of the transparent type, it is only the portion in contact with the electrical activation unit 300, a metal for electrode formation can be provided.
Figure 20a is a state that is not applied with a voltage, an electric activating unit 300 is provided to the convex shape.
Figure 20b is a state of voltage is applied, an electrical activation unit 300 are attracted to the inner surface of the electrode portion 100 is changed to the negative lens.
Polymer-based according to the 12th embodiment of the present invention a variable lens, including a transparent electrode layer 200 and the electrically active part 300 provided in its upper portion, the electrode portion 100 toward the electrically active portion 300 It characterized in that provided as a convex surface.
Figure 21a is provided as a state not applied with a voltage, in the positive lens in the form of a transparent electrode layer 200. As shown in Figure 21b, when the electrode section 100 and the electrical activation portion when voltage is applied to 300, and incorrectly electrical activation unit 300 is led to the electrode part 100, the electrical active part 300 electrode ( while in contact with the convex surface 100) it is transformed into a concave lens shape.
Electrode portion 100 is provided to at least partially transparent, the transparent portion may comprise a central portion of the lens to form an electrical activation part (300). The electrode part 100 may be provided to form the electrode surrounding the transparent portion.
Referring to Figure 22a, the convex the convex surface to the outside edges of the polymer based on a variable lens, the electrical active part (800) and said electrical active part (800) provided in a flat form according to a thirteenth embodiment of the present invention ( 812) includes a first transparent electrode layer 810 and the second transparent electrode layer 820 having a. Further, a third transparent electrode layer 840, and a fourth transparent electrode layer (850) having a convex projection surface 812 to the outside edges of the other electrical activation unit 830, and an electric activating unit (830).
Figure 22b shows the state of applying a is a positive voltage the first transparent electrode layer 810 and the fourth transparent electrode layer (850) has applied a negative voltage, and the second transparent electrode layer 820 and the third transparent electrode layer (840). In this case the electrical active part 800 is second moved to the convex surface 812 of the transparent electrode layer 820, and the electrical activation unit 830 is moved to the third transparent electrode layer 840, and functions as a whole as the negative lens .
Figure 22c shows the state of applying a has a negative voltage part of the first transparent electrode layer 810 and the fourth transparent electrode layer 850 is applied on the positive voltage, and the second transparent electrode layer 820 and the third transparent electrode layer (840). In this case, go to the electrical activation unit 800 includes a first convex surface is moved to the (812), and electrically active portion 830 is a fourth transparent electrode layer 850, the transparent electrode layer 810, and functions as a convex lens as a whole .
Polymer-based variable according to a fourteenth embodiment of the present invention the lens is interposed between the first electrode 900 and the first electrode 900 and the insulator 910, the center is formed, through which is provided on the same plane first and a second electrode 920, and an electric activating unit (300) which is provided on the first electrode 900 and the second electrode 920. Part of the electrical active part 300 is exposed through a center through the first electrode 900 constitutes a lens. In one embodiment, the first electrode 900 and the insulator 910 and the second electrode 920 may be provided to fulfill the concentric circles.
Figure 23a is a state that is not applied with a voltage.
Figure 23b is a state of applying a positive voltage is first electrode 900 is applied a negative voltage, and the second electrode 920. Electrical activation portion 300 is attracted to the second electrode 920 in the direction electrical activation part (300) forms a convex-convex lens as a whole.
Figure 23c shows the state of applying the negative voltage has a first electrode 900 is applied with a positive voltage, and the second electrode 920. Electrical activation unit 300 are attracted by the first electrode 900, the electrical activation direction (300) form a whole, the negative lens.
Those of ordinary skill in the above description it will be various modifications, alterations, and substitutions within the scope without departing from the spirit of the present invention. Accordingly, the drawings the embodiments and the accompanying disclosed invention are not intended to be is for illustrative and not intended to limit the technical idea of ​​the present invention, only this embodiment and the technical scope of the present invention by the accompanying drawings, . The scope of protection of the invention is to be interpreted by the following claims, all spirits within a scope equivalent will be construed as included in the scope of the present invention.
Plate in the form of a transparent electrode layer;
Is provided on top of said transparent electrode layer, the electrical activation unit is formed of a polymer of the transparent gel; And
Electrode portion is provided so as to be insulated by the transparent electrode layer and electrically provided on the upper or outer side of said electrical activation;
Includes, and is by applying a voltage to the transparent electrode layer and the electrode unit form the electrically active portion of the polymer-based change is the focal length variable lens a variable.
The electrode portion of the center through hole is a circle, an ellipse or a polygon formed of a polymer based on a variable lens, it characterized in that the spacing and the electrical active part.
The electrode unit of the polymer-based, characterized in that the variable lens is formed, including the longitudinal side of the cylindrical form to connect the inner side of the upper surface of annular form with the lower surface and the upper and lower surfaces.
The vertical plane is a variable lens of the polymer-based, characterized in that that narrow toward the top of the electrode portion of the ring-shaped bottom surface, and includes a vertical surface of cylindrical form which is connected to the inner side of the lower surface.
The vertical surface is a polymer based on a variable lens, characterized in that consisting of a concave or convex surface.
It said lower surface is a polymer based on a variable lens, characterized in that provided in parallel with the transparent electrode layer.
Some or all, and the lower side of the vertical plane is adjustable lens of a polymer-based, characterized in that in contact with the electrically active part.
Variable lenses of a polymer-based, characterized in that is further provided with a lens protective film to block external foreign materials or contact with the upper portion of the parts of the lens of the electro-active portions.
The electrode unit based polymer of the variable lens, characterized in that is provided vertically with respect to the transparent electrode layer, a part of the electrical activation is negative, the concave portion formed the inner surface to form a pillar form portion on an inside of the electrode portion, and the electrode portion.
The upper electrode portion includes a variable lens of the polymer-based, characterized in that the electrode portion and is further provided with an insulating auxiliary electrode portion, the auxiliary electrode portion and the electrode portion, the voltage applied to the individual.
The electrically active part of the polymer-based variable lens, characterized in that the pillar shape portion according to the comprises a pole formed above the said electrode portion forms part, voltage applied Lee lead to the upper electrode portion.
The top surface of the pillar type part of the polymer based on a variable lens, characterized in that provided concavely in a state not applied with a voltage.
The electrode portion is provided with parts of the first electrode portion and a second electrode laminated in an electrically isolated state, a variable of the polymer-based, characterized in that the respective voltages of the first electrode portion and the second electrode unit can be applied lense.
Supporting said electrode, and in that by comprising forming a surface spaced from the transparent electrode layer electrode support portion, and a mesh electrode part provided at the electrode supporting the lower, additional lowering the transparent electrode layer and supporting the electrode upon application of voltage to the mesh electrode part polymer-based variable lens according to claim.
Without applying a voltage to the mesh electrode portion, the electrical activation of the variable lens unit based polymer characterized in that the deformation in the negative lens case of applying a voltage to the electrode unit.
Characterized in that the transparent electrode layer and is there provided with an EAP actuator that includes an EAP layer and the working electrode between the electrode section, by the operation of the EAP actuator is the electrode portion and the transparent electrode layer approaches that the electrically active part deformed to a convex lens polymer-based lens of the variable.
The transparent electrode layer is provided so as to be formed to a convex surface, the electrically active portions are provided on the inner side of the convex surface of the transparent electrode layer to form the central portion is thicker than the outside, the electrode portion surrounding the outside of the electrical active part, polymer-based, it characterized in that the variable lens is deformed by the transparent electrode layer and the electrode negative voltage is applied during the electrically active part meniscus negative lens on.
The electrode unit of the polymer based on a variable lens, characterized in that is provided with a semi-spherical shape or cross-section in the form form an arc shape which covers the upper parts of the electrical activation.
The electrode unit of the polymer based on a variable lens, characterized in that is provided with a convex surface on the transparent electrode layer and spaced apart and the electrically active part.
The method of claim wherein the electroactive polymer forms the electrical activation of the polymer-based variable lens according to claim 1,
PVC (Polyvinyl chloride) and plasticizer by mixing the electroactive polymer to be produced gel (gel) state of the electroactive gel.
The plasticizers, phthalate (Phthalate) sealed DBP (Di-butyl-phthalate), DEHP (= DOP, Di-2-ethylhexyl phthalate), DOP (Dioctyl phthalate), DOTP (Dioctyl terephthalate), DINP (Di-isononyl phthalate) , DIDP (Di-isodecyl phthalate), BBP (Butyl benzyl phthalate), non-phthalate (non-phthalate) sealed ATBC (Acetyl tributyl citrate), citrate (citrate) sealed TBC (tributyl citrate), benzoate (benzoate), sulfonate carbonate (sulfonate), cyclo hexanoate (cyclohexanoate), trimellitic (Trimelli) of the electroactive polymer used to select at least one.
The electroactive polymer is cross-linked physically, and made of a film form, have been manufactured to have a thickness of 0.1 to 2.0 mm, the electroactive polymer is produced in the wavelength range of 350 ~ 800 nm -1 to have a transparency of 70 to 95% .
The PVC is dissolved the PVC powder in THF (Tetrahydrofuran) or prepared in accordance with the first generation process for the purification by washing with alcohol, or the solid precipitate was precipitated in alcohol was dissolved to produce the PVC powder in the THF is made in accordance with a second generation process for the purification by washing with the alcohol, wherein the first generation process or the second process is created, the electroactive polymer to be carried out 2 to 10 times repeatedly.
The alcohol is, each n-propanol, isopropanol, ethanol, and any one of the electroactive polymer is selected from methanol.
Was dissolved by the electroactive polymer is added to the PVC in THF, and stirred, then was stirred into the plasticizer, or prepared in a first manner of obtaining a mixture, In the above plasticizers in THF, and stirred and dispersed , was stirred into the PVC or manufactured in a second manner of obtaining a mixed solution, and then added to the PVC and a plasticizer in THF, stirred and dissolved to electroactive polymer is produced in a third way as to obtain a mixed solution.
The PVC and the plasticizer, 1 is added in a proportion of 1 to 25, electroactive polymer of stirring at the speed of 200 ~ 1000 rpm for at least an hour.
The mixed solution is dried, but dropped in the vessel, or after evaporation to dryness, evaporated for at least 1 hour, the electroactive polymer to remove residual THF solvent was vacuum dried for at least 1 hour.
A first step for dissolving the PVC (Polyvinyl chloride) powder in a solvent,
And a second step of the lysate obtained in the first stage drying was precipitated with alcohol,
And a third step of the solid precipitate from the second stage drying was purified by washing with alcohol,
And a fourth step of the PVC and the plasticizer produced through the third step of stirring and then put in a solvent,
A fifth step wherein after drying the mixed solution obtained through the step 4, or evaporated by drying is made of electroactive gel of the gel (gel) state
The method of electroactive polymer comprising a.
Production method of the electroactive polymer,
The method of the electroactive polymer further comprises the step of performing the second to the 10th step to the third step iteration production of the PVC.
The electroactive polymer is cross-linked physically, and made of a film form, have been manufactured to have a thickness of 0.1 to 2.0 mm, the electroactive polymer is produced in the wavelength range of 350 ~ 800 nm -1 to have a transparency of 70 to 95% the method of manufacture.
The fourth step is added to the THF (Tetrahydrofuran) the solvent for the PVC, was dissolved with stirring, and performing a first way was stirred into the mixture to give a plasticizer solution, or
Was added the plasticizer, the solvent is THF, and the mixture was stirred and dispersed, and stirred into the PVC performing a second method to obtain a mixed solution, or
After In the PVC and a plasticizer in the solvent is THF, and stirred, to dissolve the electroactive polymer to perform a third way as to obtain a mixed solution.
The alcohol respectively used in the first step and the third step of 2, n-propanol, isopropanol, ethanol, method of electroactive polymer is any one selected from methanol is used.
A method according to any one of claim 28 through claim 32, wherein
The fourth step, the PVC and the plasticizer is 1: is added at the rate of 1 to 25, wherein the plasticizer is phthalate (Phthalate) sealed DBP (Di-butyl-phthalate), DEHP (= DOP, Di-2-ethylhexyl phthalate), DOP (Dioctyl phthalate), DOTP (Dioctyl terephthalate), DINP (Di-isononyl phthalate), DIDP (Di-isodecyl phthalate), BBP (Butyl benzyl phthalate), non-phthalate (non-phthalate) sealed ATBC (Acetyl tributyl citrate), citrate (citrate) sealed TBC (tributyl citrate), benzoate (benzoate), sulfonate (sulfonate), cyclo hexanoate (cyclohexanoate), trimellitic (Trimelli) of the electroactive used to select at least one method of producing a polymer.
The fourth step, the method of manufacturing the electroactive polymer for agitating at a speed of 200-1000 rpm for at least an hour.
The fifth step, the mixed solution was evaporated for at least 1 hour, the method of manufacturing an electroactive polymer to remove residual THF solvent was dried for at least 1 hour.
PCT/KR2015/013623 2015-02-17 2015-12-11 Polymer-based tunable lens, electroactive polymer therefor, and manufacturing method therefor WO2016133278A1 (en)
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KR1020150032130A KR101686442B1 (en) 2015-03-08 2015-03-08 Variable focus lens and lens array based on polymers and method for adjusting lens focal length
KR10-2015-0032130 2015-03-08
WO2016133278A1 true WO2016133278A1 (en) 2016-08-25
ID=56692686
PCT/KR2015/013623 WO2016133278A1 (en) 2015-02-17 2015-12-11 Polymer-based tunable lens, electroactive polymer therefor, and manufacturing method therefor
WO (1) WO2016133278A1 (en)
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