CN109254397A - A kind of liquid lens and its manufacturing method - Google Patents
A kind of liquid lens and its manufacturing method Download PDFInfo
- Publication number
- CN109254397A CN109254397A CN201811298728.1A CN201811298728A CN109254397A CN 109254397 A CN109254397 A CN 109254397A CN 201811298728 A CN201811298728 A CN 201811298728A CN 109254397 A CN109254397 A CN 109254397A
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- China
- Prior art keywords
- liquid
- substrate
- shell
- liquid lens
- driving electrodes
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- 239000007788 liquid Substances 0.000 title claims abstract description 295
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 113
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 239000012212 insulator Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 34
- 230000002209 hydrophobic effect Effects 0.000 claims description 31
- -1 polytetrafluoroethylene Polymers 0.000 claims description 26
- 229920005565 cyclic polymer Polymers 0.000 claims description 17
- 239000003921 oil Substances 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 15
- 229920002545 silicone oil Polymers 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 claims description 8
- GRPQBOKWXNIQMF-UHFFFAOYSA-N indium(3+) oxygen(2-) tin(4+) Chemical compound [Sn+4].[O-2].[In+3] GRPQBOKWXNIQMF-UHFFFAOYSA-N 0.000 claims description 8
- 229920000052 poly(p-xylylene) Polymers 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 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 claims description 4
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 3
- 229910001021 Ferroalloy Inorganic materials 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 239000001103 potassium chloride Substances 0.000 claims description 2
- 235000011164 potassium chloride Nutrition 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 229920013822 aminosilicone Polymers 0.000 claims 1
- 238000009738 saturating Methods 0.000 claims 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 17
- 238000009826 distribution Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 150000003376 silicon Chemical class 0.000 description 4
- 239000000571 coke Substances 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 238000012634 optical imaging Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Inorganic materials [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Lens Barrels (AREA)
Abstract
It includes shell that the present invention, which provides a kind of liquid lens and its manufacturing method, the liquid lens, and the shell includes the first form and the second form；First liquid, first liquid are conductor；Second liquid, the second liquid are insulator, and first liquid does not dissolve in the second liquid；Substrate, the substrate are connect with second form, and first liquid and the second liquid are set in the shell, and the second liquid is set in the substrate；Pass through connection power supply, shell, the first liquid and substrate, so that the first liquid with electrowetting effect occurs on the contact surface of substrate and second liquid, change the interface curvature between the first liquid and second liquid, change liquid lens diopter and focal length, and then change the effective clear aperture of liquid lens, lens module miniaturization can be achieved, can be realized lens module focal length and effective clear aperture simultaneously regulates and controls, expand application scenarios and improve the applicability of application component.
Description
Technical field
The present invention relates to optical technical fields, more particularly to a kind of liquid lens and its manufacturing method.
Background technique
Currently, all having optical imaging system in the consumer electronics product such as mobile phone, optical imaging system is predominantly solid
The lens module of body lens composition, lens module adjust the distance between solid lens by mechanical motor to realize tune
Coke, is confined to the size of mechanical motor and lens module, and lens module is not easy to minimize there are imaging system volume, power disappears
Larger, clear aperture is consumed to fix and the disadvantages of mechanical noise is easy to happen crosstalk.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of liquid lens and its manufacturers
Method, for solving the problems, such as that lens module inconvenience in the prior art minimizes.
In order to achieve the above objects and other related objects, the present invention provides a kind of liquid lens, comprising: shell, the shell
Body includes the first form and the second form；First liquid, first liquid are conductor；Second liquid, the second liquid are
Insulator, first liquid do not dissolve in the second liquid；Substrate, the substrate are connect with second form, and described
One liquid and the second liquid are set in the shell, and the second liquid is set in the substrate.
Optionally, the shell is conductor.
Optionally, the material of the shell includes metallic iron, ferroalloy, metallic copper, metallic zinc, copper alloy, kirsite, copper
Any one in kirsite, metallic aluminium and aluminium alloy.
Optionally, the material of the substrate includes any one in indium oxide tin glass, quartz glass and organic glass.
Optionally, the substrate is equipped with hydrophobic layer close to the one side of the second liquid.
Optionally, the material of the hydrophobic layer includes any one in aluminum oxide and tantalum pentoxide.
Optionally, the material of the hydrophobic layer includes in polytetrafluoroethylene (PTFE), Parylene and perfluor cyclic polymer
Any one.
Optionally, the substrate is equipped with driving electrodes, and the driving electrodes are from the substrate close to the second liquid
Extend to the substrate far from the second liquid while.
Optionally, the driving electrodes are circle in the one side close to the second liquid.
Optionally, the driving electrodes are annular in the one side close to the second liquid.
Optionally, the junction of the substrate and second form is equipped with a washer for fastening and sealing, described
The shape of washer matches with the substrate.
Optionally, the material of the washer includes appointing in polytetrafluoroethylene (PTFE), Parylene and perfluor cyclic polymer
It anticipates one kind.
Optionally, the substrate includes one for carrying the recess of the second liquid, and the recess is along far from described
The direction of first liquid extends.
Optionally, first liquid includes at least water and electrolyte, and the material of the electrolyte includes lithium bromide, sulfuric acid
Any one in sodium and potassium chloride.
Optionally, the second liquid includes at least silicone oil.
Optionally, the material of the second liquid includes amido silicon oil, epoxy modified polysiloxane, Carboxyl Modified Polydimethylsiloxane, alcohol radical
Modified silicon oil, phenolic group modified silicon oil, sulfhydryl modified silicone oil, acryloxy and methacryloxy modified silicon oil, methyl are long
Any one in alkyl group silicone oil, methyl trifluoro propyl silicone oil and polyether modified silicon oil.
Optionally, the equal density of first liquid and the second liquid.
It optionally, further include cover board, the cover board is connect with first form.
A kind of liquid lens system, comprising: the liquid lens and power supply, the power supply and the shell, described the
One liquid and substrate series connection.
A kind of liquid lens manufacturing method, comprising:
Substrate and shell are provided, the shell includes the first form and the second form, by the substrate and second view
Window matches；
Connect the substrate and second form；
Second liquid is placed on the substrate, the second liquid is insulator；
The first liquid is injected into the shell, first liquid is conductor, and first liquid is insoluble in described
Second liquid；Seal the first form.
Optionally, before connecting the substrate and second form, driving electrodes are stacked on the substrate, it is described
Driving electrodes from the substrate close to the second liquid extend to the substrate far from the second liquid while.
Optionally, the material of the driving electrodes includes at least indium oxide tin glass.
Optionally, before connecting the substrate and second form, in the substrate close to the second liquid
Hydrophobic layer is stacked on one side.
Optionally, the material of the hydrophobic layer includes at least perfluor cyclic polymer, the thickness of the perfluor cyclic polymer
Degree is 0.05 micron to 50 microns.
The liquid lens manufacturing method further include: provide one for the washer that fastens and seal, be arranged the washer in
Between the substrate and the shell.
The liquid lens manufacturing method further include: the shell is bent, so that the shell is close to second form
One end it is close towards the substrate, connect the shell and the substrate.
The liquid lens manufacturing method further include: first liquid is added dropwise into shell by pipette, until institute
It states the first liquid to overflow from first form, stops that first liquid is added dropwise.
Optionally, after second liquid placement is injected the first liquid on the substrate and into the shell,
One is provided for sealing the cover board of first form, the cover board is connect with first form.
As described above, liquid lens and its manufacturing method of the invention, in the present invention:
By connection power supply, shell, the first liquid and substrate, so that the first liquid connects with substrate and second liquid
Electrowetting effect occurs in contacting surface, and then changes the first liquid in substrate and the contact angle of second liquid, to change first
Curvature between liquid and second liquid contact interface, achieve the purpose that change liquid lens diopter and focal length, it can be achieved that
Lens module miniaturization；
By changing the curvature between the first liquid and second liquid contact interface, reaches second liquid and shunk in substrate
Purpose, and then realize the effective clear aperture of liquid lens variation, it can be achieved that lens module focal length and effective clear aperture are same
When regulate and control, expand application scenarios and enhance the applicability of application component；
The first liquid and second liquid are encapsulated by substrate and shell, can effectively reduce or remit the first liquid and second liquid shape
Shell volume change caused by changing, the variation of liquid volume caused by either unloading is expanded with heat and contract with cold or shell volume change, energy
It is enough to be applied under the conditions of wider temperature.
Detailed description of the invention
Fig. 1 is shown as the structural schematic diagram of liquid lens in the embodiment of the present invention.
Fig. 2 is shown as the structural schematic diagram in the case of liquid lens system is not powered in the embodiment of the present invention.
Fig. 3 is shown as the structural schematic diagram in the embodiment of the present invention in the case of liquid lens system energization.
Fig. 4 is shown as the structural schematic diagram of liquid lens in one embodiment of the invention.
Fig. 5 is shown as the structural schematic diagram in the first face of driving electrodes in one embodiment of the invention.
Fig. 6 is shown as the flow diagram of liquid lens manufacturing method in further embodiment of this invention.
Fig. 7 is shown as underlying structure schematic diagram in further embodiment of this invention.
Fig. 8 is shown as schematic diagram of housing structure in further embodiment of this invention.
Fig. 9 is shown as substrate and shell matching relationship schematic diagram in further embodiment of this invention.
Figure 10 is shown as substrate and shell connection procedure schematic diagram in further embodiment of this invention.
Figure 11 is shown as that second liquid status diagram is added dropwise in further embodiment of this invention.
Figure 12 is shown as that the first liquid condition schematic diagram is added dropwise in further embodiment of this invention.
Figure 13 is shown as the first liquid overflow status schematic diagram in further embodiment of this invention.
Figure 14 is shown as further embodiment of this invention cover plate structural schematic diagram.
Figure 15 is shown as connecting cover plate schematic diagram in further embodiment of this invention.
Figure 16 is shown as liquid lens system structural schematic diagram in another embodiment of the present invention.
Piece mark explanation
1 shell
11 first forms
12 second forms
2 cover boards
3 washers
4 hydrophobic layers
5 lens cavities
6 the first faces of driving electrodes
6 ' annular driving electrodes
7 the second faces of driving electrodes
8 substrates
The first liquid of A
B second liquid
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Fig. 1 is please referred to Figure 16.It should be noted that diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of invention, only shown in schema then with related component in the present invention rather than package count when according to actual implementation
Mesh, shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its
Assembly layout kenel may also be increasingly complex.This specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
Art content obtains in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Referring to Fig. 1, providing a kind of liquid lens in an embodiment of the present invention, the liquid lens includes: shell 1,
The shell 1 includes the first form 11 and the second form 12；First liquid A, first liquid A are conductor；Second liquid B,
The second liquid B is insulator, and first liquid A does not dissolve in the second liquid B；Substrate 8, the substrate 8 with it is described
The connection of second form 12, first liquid A and the second liquid B are set in the shell 1, i.e. the first liquid A and institute
It states second liquid B to be set in lens cavity 5, and the second liquid B is set in the substrate 8, please refers to Fig. 2 and Fig. 3, liquid
Body lens utilize electrowetting principle, and the material of the shell 1 can choose conductor material, and the material of the substrate 8 can be chosen
Dielectric material, such as polymer dielectric material can connect shell 1, the first liquid A and 8 circuit of substrate, i.e., by first
Liquid A is powered and adjustment power-on voltage changes distribution of charges of first liquid A in substrate 8 and second liquid B, and then changes
First liquid A changes between the first liquid A and second liquid B contact interface in substrate 8 and the contact angle of second liquid B
Curvature achievees the purpose that change liquid lens diopter and focal length, and contact angle is sent out between the first liquid A and second liquid B
While changing, the shape of second liquid B changes, and then second liquid B and the contact surface of substrate 8 also occur correspondingly
It shrinks or expands, therefore effective clear aperture of liquid lens changes, by being powered to the first liquid A and changing voltage, change
Become distribution of charges and change first liquid A of first liquid A in substrate 8 and second liquid B in substrate 8 and the second liquid
The contact angle of body B achievees the purpose that while adjusting the focal length and clear aperture of liquid lens, compact-sized, convenient for miniaturization.
In liquid lens, shell 1 is contacted with the first liquid A, and shell 1 can generate electrowetting effect for the first liquid A
An electrode, therefore the shell 1 can be conductor, illustratively, the material of the shell 1 include metallic iron, ferroalloy,
Any one in metallic copper, metallic zinc, copper alloy, kirsite, ormolu, metallic aluminium and aluminium alloy, such as pass through numerical control
Machine tooling, metal plate or mold molding obtain shell 1.
Illustratively, the material of the substrate 8 includes any one in indium oxide tin glass, quartz glass and organic glass
Kind, such as substrate 8 is based on glass, in deposition on glass indium oxide tin glass, quartz glass or organic glass.
Referring to Fig. 1, for the ease of the first liquid A and second liquid B with shrink or expand on the contact surface of substrate 8
, the substrate 8 close to the second liquid one side be equipped with hydrophobic layer 4, hydrophobic layer 4 may include high dielectric constant material and
Hydrophobic material is not only convenient for the electrowetting effect that the first liquid A and substrate 8 occur, and increases the first liquid A in 8 contact surface of substrate
On contact angle, change the interface curvature between the first liquid A and second liquid B；And it is convenient for the first liquid A and second liquid
B on 8 contact surface of substrate expand or shrink, and then change liquid lens clear aperture.
Illustratively, the material of the hydrophobic layer 4 can choose metal oxide, such as include aluminum oxide (Al2O3)
With tantalum pentoxide (Ta2O5) in any one, in another example, in order to improve the hydrophobic ability of hydrophobic layer 4, the hydrophobic layer 4
Material includes appointing in polytetrafluoroethylene (PTFE) (Teflon), Parylene (Parylene) and perfluor cyclic polymer (Cytop)
It anticipates one kind, in another example, perfluor cyclic polymer is preferable for the passability of visible light, and the dielectric constant of perfluor cyclic polymer
(Dielectric constant) can be 2.0 to 2.1, preferably meet hydrophobic layer 4 and the selection of high dielectric material is wanted
It asks.
Pass through the boundary being arranged between driving electrodes the first liquid A of change and second liquid B contact interface in the substrate 8
Face curvature, the driving electrodes extend to the substrate 8 far from described close to the second liquid B from the substrate 8 on one side
The one side of second liquid B, defining the driving electrodes close to the one side of the second liquid B is the first face of driving electrodes 6, definition
One side of the driving electrodes far from the second liquid B is the second face of driving electrodes 7, such as the first face of driving electrodes 6 can be with
Pass through the connection of 8 side of substrate with the second face of driving electrodes 7；Such as the first face of driving electrodes 6 can be through substrate 8 and driving electricity
The connection of the second face of pole；In another example setting is isolated with the second face of driving electrodes 7 in the first face of driving electrodes 6, substrate 8 can choose Jie
Electric material motivates the first face of driving electrodes 6 by external power supply/the second face of Voltage On state driving electrodes 7, and then by substrate 8；
Illustratively, the shape in the first face of driving electrodes 6 is circle, and hydrophobic layer 4 is stacked on the first face of driving electrodes 6, is driven connecting
When the second face 7 of moving electrode, the first face of driving electrodes 6 is connected to the second face of driving electrodes 7, and then the first face of driving electrodes 6 is in
On state, the first liquid A on hydrophobic layer 4 is in the conductive state, changes the first liquid A in hydrophobic layer 4 and second liquid B
On distribution of charges.
By the way that the washer 3 for fastening and sealing is arranged in the junction of the substrate 8 and second form 12, reach
Prevent the first liquid A in shell 1 or the purpose of second liquid B leakage, the shape of the washer 3 and 8 phase of substrate
Match, illustratively, the material such as polytetrafluoroethylene (PTFE) that the washer 3 is chosen, such as Parylene, in another example perfluor ring-type is poly-
Close object.
By the way that the recess for carrying the second liquid B is arranged in substrate 8, and the recess is along far from described first
The direction of liquid extends, and the recess can effectively prevent second liquid B to deviate, and then prevent the light shaft offset of liquid lens.
Illustratively, first liquid A includes at least water and electrolyte, and electrolyte can select chemical property to stablize not
Material that is volatile, decomposing, crystallize or precipitate, the material of the electrolyte such as lithium bromide, such as sodium sulphate, in another example chlorine
Change potassium；The second liquid includes at least silicone oil, and the material of the second liquid includes amido silicon oil, epoxy modified polysiloxane, carboxylic
Base modified silicon oil, alcohol radical modified silicon oil, phenolic group modified silicon oil, sulfhydryl modified silicone oil, acryloxy and methacryloxy
Any one in modified silicon oil, methyl long-chain alkyl-silicone oil, methyl trifluoro propyl silicone oil and polyether modified silicon oil, alternatively, logical
The concentration for overregulating electrolyte makes the first liquid A and second liquid B density close, preferably, the first liquid A density and second
Liquid B equal density can eliminate the influence that liquid lens is generated in manufacture, assembly and use process by gravity.
Prevent the first liquid A from being leaked by the first form 11 by the way that cover board 2 is arranged, the cover board 2 and first form
11 connections, the material of cover board 2 can choose such as glass, such as resin, in another example plastics.
Please refer to Fig. 2 and Fig. 3, a kind of liquid lens system be provided in one embodiment, comprising: the liquid lens and
Power supply E, the power supply E connect with the shell 1, first liquid A and the substrate 8, as shown in Figure 2, be not connected to
In the case where power supply, the interface between the first liquid A and second liquid B forms the cambered surface with smaller curvature, correspondingly, first
The diopter at interface is smaller between liquid A and second liquid B, from the figure 3, it may be seen that connection power supply in the case where, the first liquid A and dredge
Distribution of charges is changed on 4 contact surface of water layer, is influenced by distribution of charges, and the hydrophobic performance of hydrophobic layer 4 weakens, thus the first liquid
The contact angle of body A and hydrophobic layer 4 reduces, therefore the interface between the first liquid A and second liquid B forms the biggish arc of curvature
Shape, correspondingly, the diopter at interface is larger between the first liquid A and second liquid B, and the focal length of liquid lens becomes smaller, when first
When interface curvature changes between liquid A and second liquid B, the edge of second liquid B is along towards inside second liquid B
Direction is shunk, and the clear aperture of liquid lens reduces.
Fig. 4 and Fig. 5 are please referred to, in another embodiment, the shape of the first face of driving electrodes (i.e. annular driving electrodes 6 ')
For annular, the retracted position at the edge second liquid B, annular driving electricity can be accurately controlled by connecting annular driving electrodes 6 '
Annular circle number can be 2 circles to 20 circles, such as 3 circles, such as 4 circles, such as 5 circles in pole 6 ', in another example 10 circles, annular driving electricity
Pole 6 ' can achieve the purpose of liquid with precise control lens clear aperture size, for example, between respectively enclosing in annular driving electrodes 6 '
It can isolate setting, be contracted to and match with the circle shape of annular driving electrodes 6 ' convenient for the edge of second liquid B, and then convenient for tune
Coke can realize isolation setting by the way that insulating materials (such as perfluor cyclic polymer) is arranged between each circle, also can use
The upper and lower surface that perfluor cyclic polymer encapsulates annular driving electrodes 6 ' prevents short circuit, the light pass-through of perfluor cyclic polymer
It is relatively strong, it can have 95% or above light percent of pass.Fig. 2 and Fig. 3 are please referred to, in one embodiment, provides one
Kind liquid lens system, comprising: the liquid lens and power supply E, the power supply E and the shell 2, first liquid A
And the substrate 8 is connected, the circuit being made up of power supply E, shell 1, the first liquid A and substrate 8 is realized at the first liquid A
Electrowetting effect occurs on state, and then on the contact surface of the first liquid A and substrate 8 and second liquid B, by changing
The output voltage size of variable power source E, the curvature at interface between the first liquid A of control and second liquid B, and then change diopter,
Focal length and clear aperture.
Referring to Fig. 6, in another embodiment, providing a kind of liquid lens manufacturing method, comprising:
Fig. 7, Fig. 8 and Fig. 9 are please referred to, S100: substrate 8 and shell 1 be provided, the shell 1 includes the first form 11 and the
Two forms 12 match the substrate 8 and second form 12；
Referring to Fig. 10, S200: connecting the substrate 8 and second form 12；
It please refers to Figure 11, S300: second liquid B is placed in the substrate 8, the second liquid B is insulator；
Figure 12 and Figure 13 being please referred to, S400: injecting the first liquid A into the shell 1, first liquid A is conductor,
And first liquid A does not dissolve in the second liquid B；
Figure 14 and Figure 15 are please referred to, S500: the first form 11 of sealing.
Illustratively, referring to Fig. 7, before connecting the substrate 8 and second form 12, in the substrate 8
Stack driving electrodes, the driving electrodes include the first face of driving electrodes 6 and the second face of driving electrodes 7, the driving electrodes from
The substrate 8 close to the second liquid extend to the substrate 8 far from the second liquid while, i.e. driving electricity
It is extremely the first face of driving electrodes 6 close to the one side of the second liquid, one side of the driving electrodes far from the second liquid is to drive
The second face of moving electrode 7, the substrate 8 stacks hydrophobic layer 4 close to the one side of the second liquid, preferably, in driving electrodes
Hydrophobic layer 4 is stacked, driving electrodes the can be connected with external power supply, the first face of driving electrodes 6 by the first face of driving electrodes 6
Two faces 7, and then the first liquid is connected, in the contact surface of hydrophobic layer 4 electrowetting effect occurs for the first liquid.
Illustratively, the material of the driving electrodes includes at least indium oxide tin glass, and light shield can be used for example
(Mask) and plasma enhanced magnetron sputtering deposition (Plasma enhanced magnetron sputter
Deposition) method stacks indium oxide tin glass driving electrodes, after stack driving electrodes and the connection substrate 8 with
Before second form 12, hydrophobic layer 4 is stacked close to the one side of the second liquid in the substrate 8, preferably, driving
Hydrophobic layer 4, electrowetting effect caused by enhancing the first liquid A energization, convenient for adjusting liquid lens are stacked on the first face of electrode 6
Focal length and clear aperture, the material of the hydrophobic layer 4 includes at least perfluor cyclic polymer (Cytop), such as can use leaching
Stain applies (Dip coating) coating perfluor cyclic polymer on the first face of driving electrodes 6, the thickness of perfluor cyclic polymer
Such as 0.05 micron to 1 micron, such as 1 micron to 10 microns, in another example 10 microns to 50 microns.
Please refer to Fig. 8 and Fig. 9, provide one for the washer 3 that fastens and seal, be arranged the washer 3 in the substrate 8 with
Between the shell 1.
Fig. 9 and Figure 10 are please referred to, the shell 1 is bent, so that one end court of the shell 1 close to second form 12
It is close to the substrate 8, crimping is carried out close to one end of second form 12 to the shell 1 for example, by using mold processing
(Crimp) it handles, connects the shell 1 and the substrate 8.
Figure 11, Figure 12 and Figure 13 are please referred to, such as by way of dropwise addition, second liquid B is added dropwise in substrate 8, again
Such as first liquid A is added dropwise into shell 1 by pipette, until first liquid A is overflow from first form 11
Out, stop that first liquid A is added dropwise, for example, second liquid B is added dropwise on basad 8, the first liquid is then added dropwise into shell 1
Body A, until the first liquid A then stops from the first form 11 spilling, in another example, the first liquid A is added dropwise into shell 1, until the
One liquid A then stops from the first form 11 spilling, and second liquid B is then added dropwise again.
Figure 14 and Figure 15 are please referred to, completes for second liquid B to be placed in the substrate 8 and into the shell 1
It injects after the first liquid A, provides one for sealing the cover board 2 of first form 11, by the cover board 2 and first view
Window 11 connects, such as connecting cover plate 2 and the connection of the first form 11 by way of sealing.
Figure 16 is please referred to, in another embodiment, provides a kind of lens system, power supply can connect the shell 1 and institute
Substrate 8 is stated, controls electric power output voltage to change the electrowetting effect state of liquid A, and then control the coke of liquid lens system
Away from and clear aperture.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (28)
1. a kind of liquid lens characterized by comprising
Shell, the shell include the first form and the second form；
First liquid, first liquid are conductor；
Second liquid, the second liquid are insulator, and first liquid does not dissolve in the second liquid；And
Substrate, the substrate are connect with second form, and first liquid and the second liquid are set to the shell
It is interior, and the second liquid is set in the substrate.
2. liquid lens according to claim 1, which is characterized in that the shell is conductor.
3. liquid lens according to claim 2, which is characterized in that the material of the shell include metallic iron, ferroalloy,
Any one in metallic copper, metallic zinc, copper alloy, kirsite, ormolu, metallic aluminium and aluminium alloy.
4. liquid lens according to claim 1, which is characterized in that the material of the substrate include indium oxide tin glass,
Any one in quartz glass and organic glass.
5. liquid lens according to claim 1, which is characterized in that the substrate is set on one side close to the second liquid
There is hydrophobic layer.
6. liquid lens according to claim 5, which is characterized in that the material of the hydrophobic layer include aluminum oxide and
Any one in tantalum pentoxide.
7. according to the described in any item liquid lens of claim 5 and 6, which is characterized in that the material of the hydrophobic layer includes poly-
Any one in tetrafluoroethene, Parylene and perfluor cyclic polymer.
8. liquid lens according to claim 1, which is characterized in that the substrate is equipped with driving electrodes, the driving
Electrode from the substrate close to the second liquid extend to the substrate far from the second liquid while.
9. liquid lens according to claim 8, which is characterized in that the driving electrodes are close to the second liquid
It is on one side circle.
10. liquid lens according to claim 8, which is characterized in that the driving electrodes are close to the second liquid
One side be annular.
11. liquid lens according to claim 1, which is characterized in that the junction of the substrate and second form
Washer equipped with one for fastening and sealing, the shape of the washer match with the substrate.
12. liquid lens according to claim 11, which is characterized in that the material of the washer include polytetrafluoroethylene (PTFE),
Any one in Parylene and perfluor cyclic polymer.
13. liquid lens according to claim 1, which is characterized in that the substrate includes one for carrying described second
The recess of liquid, the recess extend along the direction far from first liquid.
14. liquid lens according to claim 1, which is characterized in that first liquid includes at least water and electrolyte,
The material of the electrolyte includes any one in lithium bromide, sodium sulphate and potassium chloride.
15. liquid lens according to claim 1, which is characterized in that the second liquid includes at least silicone oil.
16. liquid lens according to claim 15, which is characterized in that the material of the second liquid includes amino silicone
Oil, epoxy modified polysiloxane, Carboxyl Modified Polydimethylsiloxane, alcohol radical modified silicon oil, phenolic group modified silicon oil, sulfhydryl modified silicone oil, acryloyl-oxy
In base and methacryloxy modified silicon oil, methyl long-chain alkyl-silicone oil, methyl trifluoro propyl silicone oil and polyether modified silicon oil
Any one.
17. liquid lens according to claim 1, which is characterized in that first liquid and the second liquid it is close
It spends equal.
18. liquid lens according to claim 1, which is characterized in that it further include cover board, the cover board and first view
Window connection.
19. a kind of liquid lens system characterized by comprising as the described in any item liquid lens of claim 1 to 18 with
And power supply, the power supply are connected with the shell, first liquid and the substrate.
20. a kind of liquid lens manufacturing method characterized by comprising
Substrate and shell are provided, the shell includes the first form and the second form, by the substrate and the second form phase
Matching；
Connect the substrate and second form；
Second liquid is placed on the substrate, the second liquid is insulator；
The first liquid is injected into the shell, first liquid is conductor, and first liquid does not dissolve in described second
Liquid；
Seal the first form.
21. liquid lens manufacturing method according to claim 20, which is characterized in that connecting the substrate and described the
Before two forms, driving electrodes are stacked on the substrate, the driving electrodes are from the substrate close to the second liquid
Extend to the substrate far from the second liquid while.
22. liquid lens manufacturing method according to claim 21, which is characterized in that the material of the driving electrodes is at least
Include indium oxide tin glass.
23. liquid lens manufacturing method according to claim 20, which is characterized in that connecting the substrate and described the
Before two forms, hydrophobic layer is stacked close to the one side of the second liquid in the substrate.
24. liquid lens manufacturing method according to claim 23, which is characterized in that the material of the hydrophobic layer at least wraps
Cyclic polymer containing perfluor, the perfluor cyclic polymer with a thickness of 0.05 micron to 50 microns.
25. liquid lens manufacturing method according to claim 20, which is characterized in that the liquid lens manufacturing method is also
Include: that a washer for fastening and sealing is provided, the washer is set between the substrate and the shell.
26. according to claim 20 or 25 described in any item liquid lens manufacturing methods, which is characterized in that the liquid is saturating
Mirror manufacturing method further include: the shell is bent, so that the shell is close to one end of second form towards the substrate
It is close, connect the shell and the substrate.
27. liquid lens manufacturing method according to claim 20, which is characterized in that the liquid lens manufacturing method is also
Include: that first liquid is added dropwise into shell by pipette, until first liquid is overflowed from first form, stops
First liquid is only added dropwise.
28. liquid lens manufacturing method according to claim 20, which is characterized in that described second liquid to be placed on
It is injected after the first liquid in substrate and into the shell, provides one for sealing the cover board of first form, by institute
Cover board is stated to connect with first form.
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| CN201811298728.1A CN109254397A (en) | 2018-11-02 | 2018-11-02 | A kind of liquid lens and its manufacturing method |
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| CN201811298728.1A CN109254397A (en) | 2018-11-02 | 2018-11-02 | A kind of liquid lens and its manufacturing method |
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| CN109254397A true CN109254397A (en) | 2019-01-22 |
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Application publication date: 20190122 |