CN110441902A - A kind of liquid lens and preparation method thereof - Google Patents
A kind of liquid lens and preparation method thereof Download PDFInfo
- 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
- Authority
- CN
- China
- Prior art keywords
- liquid
- electrode
- plane
- liquid lens
- sealant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
-
- 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)
- 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
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910730581.7A CN110441902A (en) | 2019-08-08 | 2019-08-08 | A kind of liquid lens and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910730581.7A CN110441902A (en) | 2019-08-08 | 2019-08-08 | A kind of liquid lens and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110441902A true CN110441902A (en) | 2019-11-12 |
Family
ID=68434017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910730581.7A Pending CN110441902A (en) | 2019-08-08 | 2019-08-08 | A kind of liquid lens and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110441902A (en) |
Cited By (1)
| 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)
| 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 |
-
2019
- 2019-08-08 CN CN201910730581.7A patent/CN110441902A/en active Pending
Patent Citations (14)
| 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)
| 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)
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100585436C (en) | Variable-focus lens and method of manufacturing the same | |
| CN100439968C (en) | Electrowetting cells | |
| JP5070517B2 (en) | Airtight electrowetting device | |
| CN100439941C (en) | Variable focus lens and optical device using the same as well as method of manufacturing variable focus lens | |
| JP4154858B2 (en) | Variable focus lens | |
| EP1884805A1 (en) | Liquid lens with four liquids | |
| US7978400B2 (en) | Electro-wetting apparatus and method of driving electro-wetting apparatus | |
| CN100342258C (en) | Zoom lens | |
| TWI413806B (en) | Lens of variable focal length | |
| JP2009518676A (en) | Prevention of solution flow in a fluid focus lens. | |
| US7602557B2 (en) | Variable-focus lens | |
| US20090190232A1 (en) | Optical lens arrangement for fixed lenses and a liquid lens | |
| KR100723244B1 (en) | Manufacturing process for liquid lens using electrowetting and liquid lens thereof | |
| CN1682143A (en) | Switchable optical element | |
| CN101421642A (en) | Optical element and lens array | |
| KR20070091902A (en) | Liquid lens | |
| KR101239151B1 (en) | Variable liquid lens | |
| CN100405086C (en) | Electrically-controlled variable-focus liquid lens based on electrowetting-on-dielectric | |
| CN110441902A (en) | A kind of liquid lens and preparation method thereof | |
| JP2008276177A (en) | Optical axis alignment device for liquid lens | |
| CN110456432A (en) | A kind of liquid lens and preparation method thereof | |
| KR20080064237A (en) | Aspheric liquid lens and a method for producing the same | |
| CN113495355B (en) | Electrowetting liquid lens based on composite dielectric layer with infiltrated surface and manufacturing method | |
| KR20120012929A (en) | Variable liquid lens | |
| CN109283603A (en) | A kind of zooming liquid lens and its assemble method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |