CN111830612A - Electrowetting-driven liquid lens - Google Patents
Electrowetting-driven liquid lens Download PDFInfo
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- CN111830612A CN111830612A CN201910326264.9A CN201910326264A CN111830612A CN 111830612 A CN111830612 A CN 111830612A CN 201910326264 A CN201910326264 A CN 201910326264A CN 111830612 A CN111830612 A CN 111830612A
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- 239000007788 liquid Substances 0.000 title claims abstract description 104
- 239000010410 layer Substances 0.000 claims abstract description 52
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000009736 wetting Methods 0.000 claims abstract description 11
- 239000011247 coating layer Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 229920000297 Rayon Polymers 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000008358 core component Substances 0.000 description 3
- 239000010955 niobium Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 2
- PBLNBZIONSLZBU-UHFFFAOYSA-N 1-bromododecane Chemical compound CCCCCCCCCCCCBr PBLNBZIONSLZBU-UHFFFAOYSA-N 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000005400 gorilla glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229920000052 poly(p-xylylene) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/12—Fluid-filled or evacuated lenses
- G02B3/14—Fluid-filled or evacuated lenses of variable focal length
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
- G02B26/005—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid based on electrowetting
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
An electrowetting-driven liquid lens comprises a medium electrowetting coil (1), a transparent upper cover plate (2), a transparent lower cover plate (3) and a shell (4); the medium electrowetting coil (1) is formed by annularly and tightly winding a medium electrowetting wire (7) formed by wrapping an insulating layer (9) outside a conductive wire core (8), a viscose coating layer (5) is arranged outside the coil to enable the coil to become a container capable of containing liquid, and a shell (4) is arranged outside the coating layer to play a role in protection; the inner space of the coil is sealed into a lens cavity (6) by a transparent upper cover plate (2) and a transparent lower cover plate (3), transparent conductive liquid and insulating liquid which have different refractive indexes and are not mutually soluble are stored in the lens cavity to serve as lens materials, a bent interface between the liquids plays a lens role, and the shape of the bent interface is changed through an electro-wetting driving effect to realize optical zooming. The insulating layer (9) wrapped outside the medium electro-wetting wire (7) can be coated with the hydrophobic layer (10), the insulating layer (9) and the hydrophobic layer (10) can also be combined into a whole, and the hydrophobic layer can also be coated after the medium electro-wetting coil (1) is manufactured. The liquid stored in the lens cavity (4) can be three or more than three liquids.
Description
Technical Field
The invention relates to a novel coil type electrowetting-driven liquid lens structure and a working principle thereof, belonging to the technical field of photoelectric imaging, photoelectric sensing and optical information processing devices.
Background
An optical zoom lens generally consists of a plurality of independent sets of convex/concave lenses, some of which are fixed and some of which are slidable back and forth along an optical axis. Complex zoom lenses may contain up to thirty more individual lenses and multiple moving parts. The mobile phone camera is developed towards miniaturization, specialization and intellectualization, and has wide market prospect as a key component, namely a liquid variable lens, which can integrate a plurality of cameras into a single camera. The liquid zoom lens does not need mechanical movement, realizes zooming by changing the shape of liquid, has the advantages of compact structure, flexible control, low manufacturing cost, no mechanical abrasion, easy integration and the like, and is expected to end the development dispute of simulating optical large zooming by a plurality of cameras of a mobile phone lens.
The liquid zoom lens based on the electrowetting effect utilizes an applied voltage to adjust the curvature of a liquid bending interface, thereby changing the focal length of the lens. The lens is small in structure and large in focal length adjusting range. Typical liquid variable lenses are, for example, the FluidFocus lens, as distributed by Philips, the netherlands, and the compact liquid zoom lens, as distributed by variational, the french, which zoom is achieved by using an electro-wetting drive method to adjust the focal length by changing the curvature of the curved interface of the liquid. This technique, which uses flowing liquid as the zoom lens assembly, has many advantages over the current mechanical zoom method. However, these miniature variable-focus liquid lenses using an electric control method have complicated structures, expensive materials and low yield, and no mature commercial products are available in China.
Disclosure of Invention
The invention aims to provide a coil type electrowetting-driven liquid lens structure, which simplifies the manufacturing process, improves the production process and solves the problem of the production cost of the liquid lens.
The invention provides a coil type electrowetting-driven liquid lens structure, which is shown in figure 1 and comprises a medium electrowetting coil 1, a transparent upper cover plate 2, a transparent lower cover plate 3 and a shell 4; the medium electrowetting coil 1 is in a cavity shape formed by annularly and tightly winding a medium electrowetting wire 7, a viscose coating layer 5 is arranged outside the coil to realize that the cavity in the coil 1 can contain liquid, and a shell 4 is arranged outside the coating layer to protect the coil from being influenced by the outside, so that the shell can be omitted sometimes for reducing the volume; the core component medium electro-wetting wire 7 is formed by wrapping an insulating layer 9 outside a conductive wire core 8, the insulating layer 9 can be coated with a hydrophobic layer 10 to improve the hydrophobicity of the outer surface of the wire core, and sometimes the insulating layer and the hydrophobic layer are combined into a whole, as shown in figure 2; therefore, the dielectric electrowetting coil comprises two important elements of the electrowetting effect, namely a conductive layer and an insulating hydrophobic layer, and the hydrophobic layer can be coated and placed in the inner cavity of the coil after the coil is formed;
the space of the inner cavity of the coil is sealed into a lens cavity 6 by the transparent upper cover plate 2 and the transparent lower cover plate 3, and transparent conductive liquid and insulating liquid which have different refractive indexes and are not mutually soluble are stored in the lens cavity to be used as lens materials.
Regarding the arrangement of the electrodes, there are a common electrode and a control electrode: the surfaces of the upper cover plate 2 and the lower cover plate 3 which are contacted with the conductive liquid are provided with transparent conductive layers as common electrodes, or other conductive materials are arranged to be contacted with the conductive liquid and used as common electrodes, and when the shell 4 is made of conductive materials, sometimes the shell is directly contacted with the conductive liquid and also used as common electrodes; the tap of the dielectric electrowetting coil 1 serves as a control electrode. The lens cavity can be a round tube, a taper tube, a double curved tube, a wavy tube and the like. The lens cavity is preferably a circular tube or a conical tube in shape and is used as a double-liquid lens, and the shape of the lens cavity is shown in fig. 1 and 3; when the liquid stored in the lens cavity may be three or more, the cavity shape may preferably be a double tapered tube (see fig. 4), a double curved tube, or a wavy tube (see fig. 5).
The curved interface formed by the contact of the conductive liquid and the insulating liquid plays a lens role, voltage is applied between the common electrode and the control electrode, and the interfacial tension of the conductive liquid and the dielectric electrowetting coil is reduced due to the action of the electrowetting effect, so that the shape of the curved interface is changed to realize optical zooming.
Has the advantages that: from the above description, the present invention has the following features:
the liquid lens structure combines a coil forming technology with a modern optical technology, designs a coil type electrowetting-driven liquid lens structure, and has important economic and technical values. The device designed by the invention has the advantages of simple structure, easy manufacture, low cost and the like.
The innovation point is that:
1) a dielectric electrowetting wire is invented and then applied to the construction of a liquid variable focus lens like product and provides electrowetting effect actuation. The core component of the traditional liquid zoom lens, namely the manufacture of the insulating dielectric layer providing the electro-wetting effect, is converted into the wire core processing with mature production process, the production process is greatly simplified, and the yield is improved.
2) The zooming driving force of the variable liquid lens is from the electro-wetting effect generated between the dielectric electro-wetting line and the conductive liquid, and is independent of the shape of the lens cavity, so that the variable liquid lens with any shape can be constructed.
Drawings
Fig. 1 is a schematic diagram of a coil-type electrowetting-driven liquid lens structure. In the figure, 1-medium electrowetting coil, 2-upper cover sheet, 3-lower cover sheet, 4-shell, 5-viscose glue, 6-lens cavity and 7-medium electrowetting line are arranged.
FIG. 2 is a schematic diagram of a dielectric electrowetting line structure having an 8-conductive core, a 9-insulating layer, and a 10-hydrophobic layer;
FIG. 3 is a schematic view of a lens cavity having a conical configuration;
fig. 4 is a schematic diagram of a lens cavity with a biconical structure.
Fig. 5 is a schematic diagram of a wave-like structure of the lens chamber.
Detailed Description
The embodiment of the application provides a coil type electrowetting-driven liquid lens structure which can be widely applied to a lens system with optical zooming requirements.
Specifically, referring to fig. 1, the present invention includes a dielectric electrowetting coil 1, transparent upper and lower cover sheets 2 and 3, and a housing 4; the medium electrowetting coil 1 is in a cavity shape formed by annularly and tightly winding a medium electrowetting wire 7, a viscose coating layer 5 is arranged outside the coil to realize that the cavity in the coil 1 can contain liquid, and a shell 4 is arranged outside the coating layer to protect the coil from being influenced by the outside; the core component medium electro-wetting wire 7 is formed by wrapping an insulating layer 9 outside a conductive wire core 8, the insulating layer 9 can be coated with a hydrophobic layer 10 to improve the hydrophobicity of the outer surface of the wire core, and sometimes the insulating layer and the hydrophobic layer are combined into a whole, as shown in figure 2; therefore, the dielectric electrowetting coil comprises two important elements of the electrowetting effect, namely a conductive layer and an insulating hydrophobic layer, and the hydrophobic layer can be coated and placed in the inner cavity of the coil after the coil is formed;
the space of the inner cavity of the coil is sealed into a lens cavity 6 by the transparent upper cover plate 2 and the transparent lower cover plate 3, and transparent conductive liquid and insulating liquid which have different refractive indexes and are not mutually soluble are stored in the lens cavity to be used as lens materials.
The curved interface formed by the contact of the conductive liquid and the insulating liquid plays a lens role, voltage is applied between the common electrode and the control electrode, and the interfacial tension of the conductive liquid and the dielectric electrowetting coil is reduced due to the action of the electrowetting effect, so that the shape of the curved interface is changed to realize optical zooming.
Regarding the arrangement of the electrodes, there are a common electrode and a control electrode: the surfaces of the upper cover plate 2 and the lower cover plate 3 which are contacted with the conductive liquid are provided with transparent conductive layers as common electrodes, or other conductive materials are arranged to be contacted with the conductive liquid and used as common electrodes, and when the shell 4 is made of conductive materials, sometimes the shell is directly contacted with the conductive liquid and also used as common electrodes; the tap of the dielectric electrowetting coil 1 serves as a control electrode. The lens cavity can be a round tube, a taper tube, a double curved tube, a wavy tube and the like. The lens cavity is preferably a circular tube or a conical tube in shape and is used as a double-liquid lens, and the shape of the lens cavity is shown in fig. 1 and 3; when the liquid stored in the lens cavity may be three or more, the cavity shape may preferably be a double tapered tube (see fig. 4), a double curved tube, or a wavy tube (see fig. 5).
When the lens medium is conductive liquid + insulating liquid to form a single bending interface, the control electrode is a coil tap, one of the selectable taps is used as an electrode, or the two taps are connected in parallel to form an electrode.
The common electrode arrangement is described below in three cases.
In the first scheme, a transparent conducting layer is arranged on the surface of the upper cover plate or the lower cover plate, which is in contact with the conducting liquid, and is used as a common electrode.
In the second scheme, in order to reduce the reflection loss of the upper cover plate and the lower cover plate to the light as much as possible, the surfaces of the upper cover plate and the lower cover plate are not provided with transparent conducting layers, and at the moment, other conducting materials can be arranged between the conducting liquid and the sealing cover plate to be in contact with the conducting liquid and serve as a common electrode.
And in the third scheme, when the shell is made of a conductive material, the conductive liquid is directly contacted with the conductive shell to be used as a common electrode.
When the lens medium is conductive liquid, insulating liquid and conductive liquid to form a three-liquid double-bending interface, the common electrode is a coil tap, one of the selectable taps is used as an electrode, or the two taps are connected in parallel to form an electrode. At this time, transparent conductive layers are arranged on the surfaces of the upper cover plate and the lower cover plate, which are in contact with the conductive liquid, and are used as upper and lower control electrodes to apply different voltages to independently control the upper bending interface and the lower bending interface of the three liquid lenses.
Example 1 a cylindrical or conical frame was fabricated, the coil 1 was fabricated using conventional close-wound coil method, and after completion, the frame was removed and the periphery was coated with an adhesive to form the coil 1 as a liquid-tight sidewall container wall and attached to the housing. The dielectric wire core 8 is preferably, but not limited to, a soft metal thin conductive wire, such as a copper wire, a silver wire, a gold wire, an aluminum wire, an iron wire, or tantalum, niobium, etc., and may also be made of a non-metal conductive material, such as conductive silicone rubber, etc.; the wire cores with different core diameters can be selected according to the different inner diameter sizes of the circular (conical) cylinder, and the wire cores are different from micrometer magnitude to millimeter magnitude; the periphery of the wire core is coated with micron-sized parylene as an insulating layer by evaporation or coating, the typical value can be 1-10 microns, and the commonly used insulating dielectric materials of a capacitor, such as high dielectric coefficient materials of tantalum oxide (niobium), aluminum oxide and the like, can be selected to reduce the driving voltage; the hydrophobic layer mainly plays a role in hydrophobic modification, so that the hydrophobic layer is realized by adopting a polytetrafluoroethylene polymer material coating below a micron level or even a nanometer level, a surface microstructure can be manufactured on the outer side of the insulating layer to improve the hydrophobicity, and the hydrophobic layer can be additionally coated after the electro-wetting coil is arranged. The shell can be made of metal or nonmetal in a casting mode according to requirements.
The transparent upper and lower cover plates are made of high-performance thin glass sheets, and the conducting layer of the transparent cover plate can be realized by an ITO layer prepared by a vacuum coating method. Bromododecane is used as the insulating liquid, and an aqueous lithium chloride solution with the same density is used as the conductive liquid, so that the influence of gravity is eliminated.
Example 2, the dielectric electrowetting coil 1 can be formed by wrapping a copper (or other metal) wire obtained by drawing a copper (or other metal) rod with a wire drawing machine layer by layer through a polyamide resin insulating layer and a self-adhesive insulating layer, respectively. After the outer periphery of the coil 1 is coated with glue, the housing can be omitted in order to reduce the volume of the device, if the device is strong enough.
In embodiment 3, since the zoom driving force of the variable liquid lens of the present invention is derived from the electrowetting effect between the dielectric electrowetting element 7 and the conductive liquid, and is independent of the shape of the lens cavity, it is possible to construct an optical zoom lens having any cavity shape, such as a rectangular cavity, a cylindrical cavity, a conical cavity, a biconical cavity, a hyperbolic cavity, a wave-shaped cavity, and any combination of the above shapes; for a double-liquid lens, namely two immiscible liquids, namely a conductive liquid and an insulating liquid, are filled in a lens cavity, preferably the lens cavity in a conical cavity shape, so that the stability of the optical axis of the lens is facilitated, and two electrodes are respectively a dielectric electrowetting wire 7 tap and an electrode which leads out the conductive liquid through a glass conductive layer or other modes; for a three-liquid lens, namely a lens cavity filled with three liquids which are mutually immiscible in pairs, from top to bottom, the three liquids are respectively a conductive liquid, an insulating liquid and a conductive liquid, preferably a lens cavity in a double-cone cavity shape, referring to fig. 4, the stability of the optical axis of the lens is facilitated, a common electrode is a 7-tap of a dielectric electrowetting wire, and control electrodes are respectively electrodes which are led out by the two conductive liquids through a glass conductive layer or other modes; for a multi-liquid lens, that is, more than three liquids which are immiscible in each other are filled in a lens cavity, referring to fig. 5, conductive liquids are arranged in contact with an upper cover plate and a lower cover plate, the electrowetting effect can only drive two curved interfaces, such as an interface 1 and an interface 2, other curved interfaces are used as fixed lenses, a lens cavity with a wave-shaped cavity shape or a combination of a double-cone cavity, a double-curve cavity and the like can be selected, and an electrode control scheme is the same as that of the three liquid lenses; the upper and lower cover sheets are made of chemically strengthened optical glass or other similar materials used for manufacturing mobile phone screens, such as sodium silicate glass materials, Corning gorilla glass, or organic glass used for manufacturing OLED. Using tantalum pentoxide (Ta) with a dielectric constant of up to 202O5) Or niobium pentoxide (Nb) having a relative dielectric constant of 35 to 502O5) As an insulating dielectric layer of the dielectric electrowetting line, the driving voltage of the device can be greatly reduced.
Claims (10)
1. The electrowetting-driven liquid lens is characterized in that the coil type electrowetting-driven liquid lens comprises a medium electrowetting coil (1), a transparent upper cover plate (2), a transparent lower cover plate (3) and a shell (4); the medium electrowetting coil (1) is formed by annularly and tightly winding a medium electrowetting wire (7), a viscose coating layer (5) is arranged outside the coil, and a shell (4) is arranged outside the coating layer; the inner space of the coil is sealed into a lens cavity (6) by a transparent upper cover plate (2) and a transparent lower cover plate (3), transparent conductive liquid and insulating liquid which have different refractive indexes and are not mutually soluble are stored in the lens cavity to serve as lens materials, a bent interface between the liquids plays a lens role, and the shape of the bent interface is changed through an electro-wetting driving effect to realize optical zooming.
2. An electrowetting drive liquid lens according to claim 1, wherein said dielectric electrowetting line (7) is formed by a conductive core (8) surrounded by an insulating layer (9).
3. An electrowetting drive liquid lens according to claim 1, wherein the dielectric electrowetting line (7) is coated with a hydrophobic layer (10) on the insulating layer (9), and the insulating layer (9) and the hydrophobic layer (10) are integrated.
4. An electrowetting drive liquid lens according to claim 1, wherein the liquid contacting surface of the dielectric electrowetting coil (1) is coated with a hydrophobic layer.
5. An electrowetting liquid lens according to claim 1, wherein the surface of the upper cover sheet (2) and the lower cover sheet (3) which is in contact with the conductive liquid is provided with a transparent conductive layer and serves as a common electrode.
6. An electrowetting liquid lens according to claim 1, wherein when the surface of the upper cover plate (2) and the lower cover plate (3) which is in contact with the conductive liquid is not provided with a transparent conductive layer, other conductive materials are provided to be in contact with the conductive liquid and to serve as a common electrode.
7. An electrowetting drive liquid lens according to claim 1, wherein the housing (4) is made of a conductive material, and the housing is in direct contact with the conductive liquid as a common electrode.
8. An electrowetting drive liquid lens according to claim 1, wherein said dielectric electrowetting coil (1) is tapped as a control electrode.
9. Electrowetting-driven liquid lens according to claim 1, wherein the housing (4) is omitted when the dielectric electrowetting wire coil (1) has a stiffness.
10. An electrowetting fluid lens according to claim 1, wherein the fluid stored in the lens chamber (6) is three or more fluids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326264.9A CN111830612A (en) | 2019-04-22 | 2019-04-22 | Electrowetting-driven liquid lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326264.9A CN111830612A (en) | 2019-04-22 | 2019-04-22 | Electrowetting-driven liquid lens |
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| Publication Number | Publication Date |
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| CN111830612A true CN111830612A (en) | 2020-10-27 |
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| CN201910326264.9A Pending CN111830612A (en) | 2019-04-22 | 2019-04-22 | Electrowetting-driven liquid lens |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006208661A (en) * | 2005-01-27 | 2006-08-10 | Tdk Corp | Liquid lens |
| CN1961227A (en) * | 2004-06-01 | 2007-05-09 | 皇家飞利浦电子股份有限公司 | Variable focus lens |
| CN101002115A (en) * | 2002-02-14 | 2007-07-18 | 皇家飞利浦电子股份有限公司 | Variable focus lens |
| CN207799234U (en) * | 2018-02-26 | 2018-08-31 | 上饶市鼎欣光电科技有限公司 | A kind of Network Video Surveillance high definition Penetrating Fog zoom lens |
| CN210514669U (en) * | 2019-04-22 | 2020-05-12 | 陈浩南 | Electrowetting-driven liquid lens |
| CN111999787A (en) * | 2020-10-01 | 2020-11-27 | 渤远科学仪器(镇江)有限公司 | Adjustable optical prism of electrowetting drive liquid |
-
2019
- 2019-04-22 CN CN201910326264.9A patent/CN111830612A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101002115A (en) * | 2002-02-14 | 2007-07-18 | 皇家飞利浦电子股份有限公司 | Variable focus lens |
| CN1961227A (en) * | 2004-06-01 | 2007-05-09 | 皇家飞利浦电子股份有限公司 | Variable focus lens |
| JP2006208661A (en) * | 2005-01-27 | 2006-08-10 | Tdk Corp | Liquid lens |
| CN207799234U (en) * | 2018-02-26 | 2018-08-31 | 上饶市鼎欣光电科技有限公司 | A kind of Network Video Surveillance high definition Penetrating Fog zoom lens |
| CN210514669U (en) * | 2019-04-22 | 2020-05-12 | 陈浩南 | Electrowetting-driven liquid lens |
| CN111999787A (en) * | 2020-10-01 | 2020-11-27 | 渤远科学仪器(镇江)有限公司 | Adjustable optical prism of electrowetting drive liquid |
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