CN110441902A - A kind of liquid lens and preparation method thereof - Google Patents

A kind of liquid lens and preparation method thereof Download PDF

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Publication number
CN110441902A
CN110441902A CN201910730581.7A CN201910730581A CN110441902A CN 110441902 A CN110441902 A CN 110441902A CN 201910730581 A CN201910730581 A CN 201910730581A CN 110441902 A CN110441902 A CN 110441902A
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China
Prior art keywords
liquid
electrode
plane
liquid lens
sealant
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CN201910730581.7A
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Chinese (zh)
Inventor
方勇勇
邱承彬
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Shanghai Kuju Technology Co Ltd
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Shanghai Kuju Technology Co Ltd
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Priority to CN201910730581.7A priority Critical patent/CN110441902A/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/004Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00Simple or compound lenses
    • G02B3/12Fluid-filled or evacuated lenses
    • G02B3/14Fluid-filled or evacuated lenses of variable focal length

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

The present invention provides a kind of liquid lens and preparation method thereof, the liquid lens includes at least: for applying alive first electrode and second electrode, second electrode is nested in the inside of the first electrode, and cyclic annular felt pad is provided between second electrode and first electrode, first electrode and second electrode surround to form carrier fluid region;The upper glass plates and lower glass plate being parallel to each other are set to the two sides up and down in carrier fluid region, to form closed fluid chamber;The optical liquid being placed in fluid chamber, optical liquid includes at least a conducting liquid and a non-conductive liquid, and forms liquid surface between conducting liquid and non-conductive liquid;Wherein, the face that first electrode and second electrode constitute fluid chamber is set as inclined-plane;There is the first sealant layer between upper glass plates and second electrode, there is the second sealant layer between lower glass plate and first electrode.By Optimal Structure Designing, the more superior liquid lens of more compact while performance is obtained.

Description

A kind of liquid lens and preparation method thereof
Technical field
The present invention relates to liquid lens field more particularly to a kind of pancratic liquid lens and preparation process.
Background technique
In optical imaging field, camera, code reader, mobile phone, machine vision peeped in medical treatment etc. in optical systems, optics Focusing, optical zoom are generally used motor driven moving component (such as leading screw and nut mechanism, cam mechanism) form, realize camera lens Mass motion (focusing) or the movement of single lens group (focusing).However moving component structure is extremely complex, part adds Work precision and assembly precision are all very high;The thus higher cost of mechanical zoom.Based on the liquid lens of electrowetting principle, Phillip company is immiscible by two kinds, conducting liquid and insulating silicon oil sealing with different refractivity and equal density are mounted in In transparent vessel, it is coated with one layer of hydrophobic membrane on the inner wall of container and one end transparent cover plate, the hydrophobic of hydrophobic membrane is adjusted by voltage Performance makes the interface shape of liquid change, so that the focal length of lens be made to change.This method is with small in size, zoom is fast The series of advantages such as degree fast, service life length, good imaging quality.French Varioptic liquid lens uses pyramidal structure and stablizes oil The technology of drop, while being separated upper and lower two electrodes using felt pad, it solves the problems, such as lens electric leakage, has been commercialized life at present It produces.It is well known, however, that liquid lens are in use, there is also liquid leakage, hesitation, diopter is small, image quality is not high Shortcomings.
In view of the deficiencies of the prior art, the present invention proposes it is a kind of it is small in size, sluggishness is small, diopter is big, image quality is high Liquid lens and preparation method thereof.
Summary of the invention
In view of the foregoing deficiencies of prior art, it is an object of the invention to propose a kind of liquid lens and its preparation Method is obtained small in size, sluggish by structure design, the plated film selection, the optimization of encapsulation process and assembly technology to electrode It is small, diopter is big, image quality is high and the liquid lens that is advantageously integrated, can be widely applied to optical focus, zoom system, pancreatic system.
In order to achieve the above objects and other related objects, the present invention provides a liquid lens, and the liquid lens at least wraps It includes:
For applying alive first electrode and second electrode, the first electrode and second electrode are annular in shape, described Second electrode is nested in the inside of the first electrode, and cyclic annular insulation is provided between the second electrode and first electrode Pad, for obstructing being electrically connected between the first electrode and second electrode, the first electrode surrounds to be formed with second electrode Carrier fluid region;
The upper glass plates and lower glass plate being parallel to each other are set to the two sides up and down in the carrier fluid region, closed to be formed Fluid chamber;
The optical liquid being placed in the fluid chamber, the optical liquid are non-conductive including at least a conducting liquid and one Liquid, and liquid surface is formed between the conducting liquid and the non-conductive liquid;
Wherein, the face that the first electrode and the second electrode constitute the fluid chamber is set as inclined-plane;The upper glass There is the first sealant layer between plate and the second electrode, it is close with second between the lower glass plate and the first electrode Adhesive layer.
Optionally, the inclined-plane of the second electrode includes the first inclined-plane and the second inclined-plane, first inclined-plane and described the Two inclined-planes are crossed to form angle.
Optionally, the angle of the angle includes (90 °~180 °), (180~270 °).
Optionally, first inclined-plane and the second inclined-plane are equipped with dielectric film and hydrophobic membrane, the dielectric film covering described the One inclined-plane and the second inclined-plane, the hydrophobic membrane cover the dielectric film.
Optionally, the surface roughness on first inclined-plane and second inclined-plane includes 0.01~0.1 μm.
Optionally, also containing the glass for limiting sealant layer thickness in first sealant layer and the second sealant layer Glass microballon.
Optionally, the conducting liquid is identical as the density of the non-conductive liquid.
Optionally, the conducting solution include water, alcohol, in salting liquid any one or mixtures thereof;It is described non-conductive Solution includes or mixtures thereof one of silicone oil, chlorobenzene.
Optionally, the liquid lens further includes the sealant on the second electrode and the felt pad.
Optionally, there is the layering of three-layer liquid body in the fluid chamber, the non-conductive liquid separates two layers of conducting liquid.
The present invention also provides a kind of preparation method of liquid lens as described above, which is included at least such as Lower step:
1) lower glass plate and a bevelled first electrode of tool are provided, the lower glass plate is bonded to by sealant In the first electrode;
2) felt pad is fitted into the first electrode, forms the first component, and the first component is immersed in first In liquid;
3) upper glass plates and a bevelled second electrode of tool are provided, the upper glass plates are bonded to by sealant In the second electrode;
4) second liquid is instilled in the groove that the upper glass plates and the second electrode are formed by pipette, is formed Second component, and the second component is immersed in first liquid;
5) first component is combined in first liquid with the second component, forms third member, it is described Fluid chamber is formed between the first component and the second component, and there is first liquid and second liquid in the fluid chamber Body;
6) liquid lens being completed is taken out in the first liquid of Yu Suoshu, and the insulation in the liquid lens Pad and second electrode upper surface coat sealant, form sealant;
Wherein, first liquid is conducting liquid, and the second liquid is non-conductive liquid.
Optionally, it in step 3), before the upper glass plates are bonded to the second electrode by sealant, also wraps Include the step of dielectric film and hydrophobic membrane are successively plated to the inclined-plane of the second electrode.
It optionally, further include pair before the step of inclined-plane to the second electrode successively plates dielectric film and hydrophobic membrane The roughness of the step of inclined-plane of the second electrode is mechanically polished, the inclined-plane of the second electrode after polishing includes 0.01~0.1 μm.
Optionally, in step 1) or step 3), the specific steps of the bonding are as follows: be first uniformly applied to the sealant Glass microballoon is placed in the sealant by the region to be bonded in the glass plate, and the electrode is placed in and is wanted Then the position of bonding slowly presses, until the glass microballoon is contacted with the glass plate and the electrode.
Optionally, the thickness of the sealant is more than or equal to the diameter of the glass micro-column.
Optionally, in step 4), second liquid is being instilled by the upper glass plates and the second electrode by pipette Before the groove of formation, further include by pipette by third liquid instill the upper glass formed with the second electrode it is recessed In slot, the third liquid is conducting liquid.
Optionally, the third liquid is identical as first liquid.
The present invention also provides a kind of optical system, the optical system includes that liquid as described in any one of the above embodiments is saturating Mirror.
As described above, liquid lens of the invention overcomes power-up procedures by the Optimal Structure Designing to two electrodes The unstable disadvantage of middle optical axis;By the high-intensitive epoxy glue of selection and glass microballoon solves lens seals and assembly precision is asked Topic, realizes the improvement of liquid lens image quality.The present invention is not in the case where increasing liquid lens dimensional conditions, by lens Three-layer liquid body is added, increasing exponentially for diopter may be implemented.Optics module based on fluid present invention lens can answer extensively Use optical zoom field.
Detailed description of the invention
Fig. 1 is shown as in embodiment one, structural schematic diagram lower glass plate being bonded to by sealant in first electrode.
Fig. 2 is shown as the structural schematic diagram of first electrode in embodiment one.
Fig. 3 is shown as that felt pad being fitted into first electrode in embodiment one, forms the structural schematic diagram of the first component.
Fig. 4 is shown as in embodiment one having bevelled second electrode by sealant and be bonded in the knot in upper glass plates Structure schematic diagram.
Fig. 5 is shown as in embodiment one forming second liquid instillation upper glass plates with the second electrode by pipette Groove in structural schematic diagram.
Fig. 6 is shown as the structural schematic diagram for combining the first component and second component in the first liquid in embodiment one.
Fig. 7 is shown as being sealed the upper surface of felt pad and second electrode in embodiment one structural representation of processing Figure.
Fig. 8 is shown as the structural schematic diagram of liquid lens in embodiment two.
Fig. 9 is shown as the structural schematic diagram of second electrode in embodiment two.
Figure 10 is shown as in embodiment two that third liquid and second liquid are instilled upper glass plates and second by pipette The structural schematic diagram in groove that electrode is formed.
Component label instructions
101 first electrodes
102 first sealant layers
103 lower glass plates
104 felt pads
105 second electrodes
106 second sealant layers
107 upper glass plates
108 second liquids
109 first liquid
110 liquid surfaces
111 fluid chambers
112 third sealant layers
The inclined-plane of 1011 first electrodes
First inclined-plane of 1051 second electrodes
Second inclined-plane of 1052 second electrodes
1053 horizontal lines
α angle
201 first electrodes
102 first sealant layers
203 lower glass plates
204 felt pads
205 second electrodes
106 second sealant layers
207 upper glass plates
208 second liquids
209 third liquid
210 first liquid
211 fluid chambers
212 third sealant layers
213 liquid surfaces
214 liquid surfaces
First inclined-plane of 2051 second electrodes
Second inclined-plane of 2052 second electrodes
α ' angle
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 10.It should be noted that diagram provided in the present embodiment only illustrates this in a schematic way The basic conception of invention, though only show in diagram 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 form, quantity and the ratio of each component can arbitrarily change for one kind, and its Assembly layout form may also be increasingly complex.
Embodiment one
As shown in Fig. 1~10, the present embodiment provides a kind of liquid lens and preparation method thereof.
As shown in fig. 6, the present invention provides a kind of liquid lens.Liquid lens includes first electrode 101, second electrode 105, the felt pad 104 for separating first electrode 101 and second electrode 105, the upper glass plates 107 that are parallel to each other and lower glass Glass plate 103 is surrounded by first electrode 101, second electrode 105, felt pad 104, upper glass plates 107, lower glass plate 103 and is formed liquid Body cavity 111, the first liquid 109 being placed in fluid chamber 111,108 shape of second liquid 108, the first liquid 109 and second liquid At interface 110, between upper glass plates 107 and second electrode in the first sealant layer 102, be located at lower glass plate 103 The second sealant layer 106 between first electrode and the third positioned at 105 upper surface of felt pad 104 and second electrode are close Adhesive layer 112.In the present invention, first electrode 101 and second electrode 105 have inclined-plane.
The technical solution of the present embodiment is further illustrated below by the preparation process of liquid lens.
As shown in Figure 1, carrying out step 1) provides a bevelled first electrode 101 of tool, lower glass plate 103 is passed through into sealing In gluing knot to first electrode 101, the first sealant layer 102 is formed between first electrode 101 and lower glass plate 103.
As an example, the material of first electrode 101 includes metallic iron, ferroalloy, metallic copper, copper alloy, metallic aluminium, aluminium conjunction Any one in gold, hardness 5-20HRC.In the present embodiment, select 304 stainless steels as first electrode 101.
The detail figure of first electrode 101 is as shown in Figure 2.First electrode 101 has an inclined-plane 1011, in order to subsequent Form the fluid chamber of taper.
As shown in figure 3, carrying out step 2), felt pad 104 is fitted into first electrode 101, the formation first component, and by shape At the first component be immersed in the first liquid.
Felt pad 104 prevents the electric shock between first electrode and second electrode for first electrode and second electrode to be isolated It wears, solves the problems, such as that liquid lens leaks electricity.
First liquid be conducting liquid, can select water, alcohol, salting liquid or more than mixture, in the present embodiment, choosing Use water as the first liquid.
As shown in figure 4, carrying out step 3), will have bevelled second electrode 105 and upper glass plates are bonded in by sealant On 107, the second sealant layer 106 is formed between second electrode 105 and upper glass plates 107.
As an example, the material selection brass of second electrode 105, aluminium alloy etc..
As an example, second electrode has double inclined plane, i.e. the first inclined-plane 1051 and the second inclined-plane 1052, the first inclined-plane and the One inclined-plane is crossed to form angle α.The purpose that inclined-plane is arranged is fluid chamber in order to form taper.And diconical fluid chamber can be with Keep liquid more stable, can guarantee the stability of liquid optical axis in entire power-up procedures.
As an example, the angle of angle α can be (90 °~180 °) or (180~270 °).In the present embodiment, the angle of α Degree is selected as (90 °~180 °).For liquid lens, angle is bigger, and the response time is faster, but optical axis is unstable, difficult To survey full voltage-power profiles;Angle is smaller, and optical axis stable is more preferable, but the response time can be slack-off.Therefore, for angle Size, can be selected according to actual needs.
As an example, before bonding, there are also to progress machine at the inclined-plane 1051,1052 of second electrode 105 in step 3) The step of tool polishes makes the roughness at its inclined-plane meet 0.01~0.1 μm of requirement, to reach the sluggish effect for weakening lens It answers, improves the performance of liquid lens.
As an example, further including to second electrode before second electrode 105 is bonded to lower glass plate 107 in step 3) 105 inclined-plane is successively plated the step of dielectric film and hydrophobic membrane and (is not drawn).In the present embodiment, dielectric film and hydrophobic is successively plated The step specific practice of film are as follows: first plate 1-10 μm of dielectric film in the chamfered region of second electrode 103, be then dielectric film it The hydrophobic membrane of upper plating 20-100nm, to obtain the effect of more preferable electrowetting, the material of dielectric film can be aluminum oxide, five oxygen Change two tantalums, any one in Parylene;The material of hydrophobic membrane can be at least one in CYTOP, Teflon AF1600 Kind.The purpose that dielectric film is plated before plating hydrophobic membrane, is the breakdown of second electrode in order to prevent.
It should be noted that before carrying out plated film to the inclined-plane 1051,1052 of second electrode 103, the step that is mechanically polished Suddenly.
As shown in figure 5, carrying out step 4), second liquid 108 is instilled by upper glass plates 107 and described second by pipette In the groove that electrode 105 is formed, second component is formed, and second component is immersed in the first liquid.
Second liquid 108 be non-conductive liquid, including the organic solvents such as silicone oil, chlorobenzene or more than mixture.In this reality It applies in example, selects silicone oil as second liquid of the invention.And the stabilization of the optical axis for liquid lens, second liquid 108 is not More than the height for the intersection that the first inclined-plane 1051 of second electrode 105 intersects with the second inclined-plane 1052, i.e. second liquid not superelevation Horizontal line 1053.
As an example, containing glass microballoon (not drawing) in the first sealant layer 102 and the second sealant layer 106.It is led Acting on is thickness for fixing seal glue, so that it is parallel with lower glass plate 103 to facilitate upper glass plates 107.Glass is micro- There are two types of the addition manner of pearl is general, one is glass microballoon to be mixed in sealant, gluing is directly carried out;One is sealants It is painted with and then is put into glass microballoon.In the present embodiment, using second method, specific practice is: first will sealing Glue is uniformly applied to the region to be bonded in glass plate, and glass microballoon is placed in the sealant, then places electrode It in appropriate location, then slowly presses, until glass microballoon is contacted with glass plate and electrode.Finally solidified, in this implementation In example, curing time is 24 hours, to guarantee the thorough solidification of sealant.The thickness of its gluing is more than or equal to the straight of glass microballoon Diameter, so that sealant and glass plate and electrode come into full contact with, to guarantee sealing effect.
As an example, the material of upper glass plates 107 and lower glass plate 103 is typically chosen as the higher material of transmissivity, including The flatness of one of indium oxide tin glass, quartz glass or organic glass, glass plate upper and lower surface is better than 3 μm, the depth of parallelism Better than 5 μm.
As shown in fig. 6, carrying out step 5), the first component and second component are combined in the first liquid, forms third portion Part forms fluid chamber 111 between the first component and second component, have the first liquid 109 and described the in the fluid chamber 111 Two liquid 108, the first liquid 109 form liquid cross-sectional 110 with second liquid 108.
As an example, further including pressurizeing third member so that the first component and second component after forming third member The step of close contact.
As shown in fig. 7, carrying out step 6), the liquid lens being completed is taken out, to felt pad 104 and second electrode 105 Upper surface be sealed processing, form third sealant layer.
As an example, select epoxy glue be sealed as sealant, sealant layer with a thickness of 0.125mm.
The liquid lens cooperation solid lens group of the present embodiment may be used in any varifocal optical system, can be by plane Electrode is fitted into lens drum, then the liquid lens that the present embodiment preparation is completed is put into, and finally uses retaining ring axial restraint, can be complete At the assembling of liquid lens optical system.
The liquid lens that the present invention develops overcomes light in power-up procedures by the Optimal Structure Designing to two electrodes The unstable disadvantage of axis;By selecting high-intensitive epoxy glue and glass microballoon to solve the problems, such as lens seals and assembly precision, Realize the improvement of liquid lens image quality.Optics module based on fluid present invention lens can be widely applied to optics change Burnt field.
Embodiment two
The present embodiment provides a kind of liquid lens and preparation methods, compared with embodiment one, are not increasing mechanical dimension In the case where, realize that Diopter strength increases one times of effect.
The present embodiment and one technical solution of embodiment are essentially identical, the difference is that optics in fluid chamber in the present embodiment Liquid is made of three-layer liquid body.
As shown in figure 8, liquid lens provided in this embodiment includes: first electrode 201, second electrode 205, for by the Felt pad 104 that one electrode 201 is separated with second electrode 205, the upper glass plates 207 being parallel to each other and lower glass plate 203, by the One electrode 201, second electrode 205, felt pad 204, upper glass plates 207, lower glass plate 203 surround to form fluid chamber 211, accommodating The first liquid 210, second liquid 208, third liquid 209, the first liquid 210 and 208 shape of second liquid in fluid chamber 211 Form interface 214 at interface 213, third liquid 209 and second liquid 208, be located at upper glass plates 207 and second electrode 205 it Between in the first sealant layer 206, the second sealant layer 202 between lower glass plate 203 and first electrode 101, with And the third sealant layer 212 positioned at 205 upper surface of felt pad 204 and second electrode.In the present invention, first electrode 201 with Second electrode 205 has inclined-plane;First liquid 210 is conducting liquid with third liquid 209, and second liquid 208 is non-conductive liquid Body.
As an example, the first liquid 210 and third liquid 209 include water, alcohol, salting liquid or more than mixture, second Liquid 208 include the organic solvents such as silicone oil, chlorobenzene or more than mixture.First liquid and third liquid can be identical, can also With difference.In the present embodiment, the first liquid is identical as third liquid, and all selection water, second liquid select silicone oil.
As shown in figure 9, being the detail view of second electrode 205.In the present embodiment, second electrode 205 is to make three-layer liquid body It is more stable, do corresponding improvement.The angle α that the first inclined-plane 2051 and the second inclined-plane 2052 in its second electrode 205 are formed ' , angle α different from embodiment one ' angle select 180~270 °, thus, it is possible to make the optical axis of three-layer liquid body more steady It is fixed.
Correspondingly, embodiment two and one preparation method of embodiment are also slightly different.
As third liquid 209 is instilled upper glass plates 207 and the second electricity by pipette first in step 4) by Figure 10 Pole is formed in the groove that 205 form, what the height of third liquid 209 intersected not higher than the first inclined-plane 2051 with the second inclined-plane 2052 Intersection is located at the height of groove, and second liquid 208 is then instilled upper glass plates 207 and second electrode 205 by pipette again In the groove of formation, second liquid 208 is located at the top of third liquid 209, and the height of third liquid 209 is not higher than the second electricity The height of pole 205.In this way, second liquid 208 and the stability in fluid chamber of third liquid 209 can be improved.
The preparation step and embodiment one of remaining liquid lens are consistent, and to avoid repeating, details are not described herein.
The liquid lens of the three-layer liquid body of the preparation of the present embodiment can be applied to optical system, and plane electrode is packed into lens In cylinder, then the present embodiment is prepared into the liquid lens completed and is put into, finally used retaining ring axial restraint, liquid lens light can be completed The assembling of system.But what is different from the first embodiment is that there is three pieces of lens in this lens drum, radial direction is positioned by lens drum.Pass through Reasonable optical design is, it can be achieved that the high varifocal optical system of image quality, such as infrared optical system, laser test system or number In code camera.
The liquid lens of the present embodiment invention may be implemented by the improvement for increasing the liquid number of plies and carrying out to electrode In the case where not increasing mechanical dimension, realizes that diopter increasing is twice, greatly improve the performance of liquid lens.
To sum up, liquid lens and preparation method thereof of the invention, liquid lens include: for applying alive first electrode With second electrode, the first electrode and second electrode are annular in shape, and the second electrode is nested in the interior of the first electrode Side, and cyclic annular felt pad is provided between the second electrode and first electrode, for obstructing the first electrode and the second electricity Electrical connection between pole, the first electrode and second electrode surround to form carrier fluid region;The upper glass plates being parallel to each other are under Glass plate is set to the two sides up and down in the carrier fluid region, to form closed fluid chamber;The light being placed in the fluid chamber Liquid is learned, the optical liquid includes at least a conducting liquid and a non-conductive liquid, and the conducting liquid is not led with described Liquid surface is formed between electro-hydraulic body;Wherein, the face that the fluid chamber is formed in the first electrode and the second electrode is set For inclined-plane;There is the first sealant layer, the lower glass plate and described first between the upper glass plates and the second electrode There is the second sealant layer between electrode.The liquid lens that the present invention develops, by the Optimal Structure Designing to two electrodes, gram The unstable disadvantage of optical axis in power-up procedures is taken;By selecting high-intensitive epoxy glue and glass microballoon to solve lens seals With assembly precision problem, the improvement of liquid lens image quality is realized.The present invention in the case where not increasing liquid lens dimensional conditions, By adding three-layer liquid body in lens, increasing exponentially for diopter may be implemented.Optical mode based on fluid present invention lens Group can be widely applied to optical zoom field.
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 (17)

1. a kind of liquid lens, which is characterized in that the liquid lens includes at least:
For applying alive first electrode and second electrode, the first electrode and second electrode are annular in shape, and described second Electrode is nested in the inside of the first electrode, and cyclic annular felt pad is provided between the second electrode and first electrode, uses In obstructing being electrically connected between the first electrode and second electrode, the first electrode and second electrode surround to form carrier fluid area Domain;
The upper glass plates and lower glass plate being parallel to each other are set to the two sides up and down in the carrier fluid region, to form closed liquid Body cavity;
The optical liquid being placed in the fluid chamber, the optical liquid include at least a conducting liquid and a non-conductive liquid Body, and liquid surface is formed between the conducting liquid and the non-conductive liquid;
Wherein, the face that the first electrode and the second electrode constitute the fluid chamber is set as inclined-plane;The upper glass plates with There is the first sealant layer between the second electrode, there is the second sealant between the lower glass plate and the first electrode Layer.
2. liquid lens according to claim 1, which is characterized in that the inclined-plane of the second electrode include the first inclined-plane and Second inclined-plane, first inclined-plane and second inclined-plane are crossed to form angle.
3. liquid lens according to claim 2, which is characterized in that the angle of the angle include (90 °~180 °), (180 °~270 °).
4. liquid lens according to claim 2, which is characterized in that first inclined-plane and the second inclined-plane are coated with dielectric film And hydrophobic membrane, the dielectric film cover first inclined-plane and the second inclined-plane, the hydrophobic membrane covers the dielectric film.
5. according to liquid lens as claimed in claim 2, which is characterized in that the surface on first inclined-plane and second inclined-plane is thick Rugosity includes 0.04~0.1 μm.
6. liquid lens according to claim 1, which is characterized in that in first sealant layer and the second sealant layer Also containing the glass microballoon for limiting sealant layer thickness.
7. liquid lens according to claim 1, which is characterized in that the conducting liquid is close with the non-conductive liquid It spends identical.
8. liquid lens according to claim 1, which is characterized in that the conducting solution includes water, alcohol, in salting liquid Any one or two or more mixtures;The non-conductive solution includes the mixture of one or both of silicone oil, chlorobenzene.
9. liquid lens according to claim 1, which is characterized in that the liquid lens further includes being located at second electricity Sealant on pole and the felt pad.
10. liquid lens according to claim 1, which is characterized in that there is the layering of three-layer liquid body in the fluid chamber, it is described Non-conductive liquid separates the conducting liquid.
11. a kind of preparation method of liquid lens as described in claim 1, which is characterized in that the preparation method includes at least Following steps:
1) lower glass plate and a bevelled first electrode of tool are provided, the lower glass plate is bonded to by sealant described in In first electrode;
2) felt pad is fitted into the first electrode, forms the first component, and the first component is immersed in the first liquid In;
3) upper glass plates and a bevelled second electrode of tool are provided, the upper glass plates are bonded to by sealant described in In second electrode;
4) second liquid is instilled in the groove that the upper glass plates and the second electrode are formed by pipette, forms second Component, and the second component is immersed in first liquid;
5) first component is combined in first liquid with the second component, formation third member, described first Fluid chamber is formed between component and the second component, and there is first liquid and the second liquid in the fluid chamber;
6) take out the liquid lens being completed in the first liquid of Yu Suoshu, and the felt pad in the liquid lens and Second electrode upper surface coats sealant, forms sealant;
Wherein, first liquid is conducting liquid, and the second liquid is non-conductive liquid.
12. the preparation method of liquid lens according to claim 11, which is characterized in that in step 3), on will be described It further include that dielectric film is successively plated to the inclined-plane of the second electrode before glass plate is bonded to the second electrode by sealant And the step of hydrophobic membrane.
13. the preparation method of liquid lens according to claim 12, which is characterized in that the oblique of the second electrode It further include the step mechanically polished to the inclined-plane of the second electrode before the step of dielectric film and hydrophobic membrane is successively plated in face Suddenly, the roughness on the inclined-plane of the second electrode after polishing includes 0.04~0.1 μm.
14. the preparation method of liquid lens according to claim 11, which is characterized in that in step 1) or step 3), institute State the specific steps of bonding are as follows: the sealant is uniformly applied to the region to be bonded in the glass plate first, by glass Microballon is placed in the sealant, and the electrode is placed in the position to be bonded, and is then slowly pressed, until the glass Glass microballon is contacted with the glass plate and the electrode.
15. the preparation method of liquid lens according to claim 14, which is characterized in that the thickness of the sealant is greater than Equal to the diameter of the glass micro-column.
16. the preparation method of liquid lens according to claim 11, which is characterized in that in step 4), passing through liquid relief Pipe instills second liquid before the groove that the upper glass plates and the second electrode are formed, and further includes by pipette by the In the groove that three liquid instill the upper glass and the second electrode is formed, the third liquid is conducting liquid.
17. a kind of liquid lens component, which is characterized in that including the described in any item liquid lens of such as claim 1~10.
CN201910730581.7A 2019-08-08 2019-08-08 A kind of liquid lens and preparation method thereof Pending CN110441902A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112433274A (en) * 2020-11-12 2021-03-02 上海酷聚科技有限公司 Liquid lens, preparation method thereof and optical device

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1705901A (en) * 2002-10-25 2005-12-07 皇家飞利浦电子股份有限公司 Zoom lens
CN1794018A (en) * 2004-12-23 2006-06-28 瓦里奥普蒂克公司 Variable focal lens
US20070146894A1 (en) * 2005-12-27 2007-06-28 Tessera, Inc. Liquid lens with piezoelectric voltage converter
CN101331412A (en) * 2005-12-13 2008-12-24 瓦里奥普蒂克公司 Hermetic electrowetting device
CN101441284A (en) * 2008-12-12 2009-05-27 南京邮电大学 Electric tuning micro-flow control double-zoom lens
CN101464558A (en) * 2009-01-13 2009-06-24 南京邮电大学 Electric tuning optical attenuator
CN102876273A (en) * 2012-10-08 2013-01-16 合肥杰事杰新材料股份有限公司 Room temperature cured anti-flow sealing adhesive used for engineering plastic methane tank, and application thereof
CN104391345A (en) * 2014-07-24 2015-03-04 西安应用光学研究所 Electrowetting-type variable-focus liquid lens comprising gradient index material
CN107526123A (en) * 2016-06-21 2017-12-29 乐金显示有限公司 Liquid lens and liquid lens module
KR20180015912A (en) * 2016-08-04 2018-02-14 명지대학교 산학협력단 Liquid optical apparatus using electrowetting and actuating method thereof
CN109254398A (en) * 2018-11-02 2019-01-22 上海酷聚科技有限公司 A kind of zooming liquid lens
CN109254335A (en) * 2018-11-02 2019-01-22 上海酷聚科技有限公司 Zooming liquid lens and its assemble method
CN109283603A (en) * 2018-11-02 2019-01-29 上海酷聚科技有限公司 A kind of zooming liquid lens and its assemble method
CN110045495A (en) * 2019-05-06 2019-07-23 南京邮电大学 A kind of optics phase modulation method based on liquid lens

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1705901A (en) * 2002-10-25 2005-12-07 皇家飞利浦电子股份有限公司 Zoom lens
CN1794018A (en) * 2004-12-23 2006-06-28 瓦里奥普蒂克公司 Variable focal lens
CN101331412A (en) * 2005-12-13 2008-12-24 瓦里奥普蒂克公司 Hermetic electrowetting device
US20070146894A1 (en) * 2005-12-27 2007-06-28 Tessera, Inc. Liquid lens with piezoelectric voltage converter
CN101441284A (en) * 2008-12-12 2009-05-27 南京邮电大学 Electric tuning micro-flow control double-zoom lens
CN101464558A (en) * 2009-01-13 2009-06-24 南京邮电大学 Electric tuning optical attenuator
CN102876273A (en) * 2012-10-08 2013-01-16 合肥杰事杰新材料股份有限公司 Room temperature cured anti-flow sealing adhesive used for engineering plastic methane tank, and application thereof
CN104391345A (en) * 2014-07-24 2015-03-04 西安应用光学研究所 Electrowetting-type variable-focus liquid lens comprising gradient index material
CN107526123A (en) * 2016-06-21 2017-12-29 乐金显示有限公司 Liquid lens and liquid lens module
KR20180015912A (en) * 2016-08-04 2018-02-14 명지대학교 산학협력단 Liquid optical apparatus using electrowetting and actuating method thereof
CN109254398A (en) * 2018-11-02 2019-01-22 上海酷聚科技有限公司 A kind of zooming liquid lens
CN109254335A (en) * 2018-11-02 2019-01-22 上海酷聚科技有限公司 Zooming liquid lens and its assemble method
CN109283603A (en) * 2018-11-02 2019-01-29 上海酷聚科技有限公司 A kind of zooming liquid lens and its assemble method
CN110045495A (en) * 2019-05-06 2019-07-23 南京邮电大学 A kind of optics phase modulation method based on liquid lens

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
崔建国等: "液体透镜研究现状与展望", 《重庆理工大学学报(自然科学)》 *
康明等: "基于EWOD的锥形管状结构液体变焦透镜", 《传感技术学报》 *
赵瑞等: "基于介电润湿三液体透镜的变焦光学系统的设计与分析", 《光子学报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112433274A (en) * 2020-11-12 2021-03-02 上海酷聚科技有限公司 Liquid lens, preparation method thereof and optical device

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Application publication date: 20191112