CN209446808U - A kind of Fresnel liquid lens and system - Google Patents
A kind of Fresnel liquid lens and system Download PDFInfo
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- CN209446808U CN209446808U CN201821803495.1U CN201821803495U CN209446808U CN 209446808 U CN209446808 U CN 209446808U CN 201821803495 U CN201821803495 U CN 201821803495U CN 209446808 U CN209446808 U CN 209446808U
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Abstract
The utility model provides a kind of Fresnel liquid lens and system, by the way that the 2nd groove to the i-th groove is connected, and the first liquid in the 2nd groove to the i-th groove of conducting, so that electrowetting effect occurs for the first liquid in the 2nd groove to the i-th groove, jth plane run-off the straight, light are converged by the 2nd groove to the i-th groove；By the way that the first liquid in the 1st groove, and the 1st groove of conducting is connected, so that electrowetting effect occurs for the first liquid in the 1st groove, the curvature of the first liquid and second liquid contact interface changes, and light converges when passing through 1 groove；By the focal length f for controlling the 2nd groove to the i-th groove2With the focal length f of the 1st groove1Unanimously, it realizes that Fresnel liquid lens focuses, achievees the purpose that realize the miniaturization of Fresnel liquid lens, convenient for accurate control, expand the application scenarios of application component and the applicability of enhancing application component.
Description
Technical field
The utility model relates to optical technical fields, more particularly to a kind of Fresnel liquid lens and system.
Background technique
Currently, optical system especially optical focal distance setting system is usually made of the solid lens of fixed focal length, in order to adjust
Its focal length, optical focal distance setting system are needed using multiple groups solid lens, drive solid lens movement to realize light by mechanical part
Zoom system, pancreatic system focusing is learned, especially in bigbore optical focal distance setting system, structure is complicated, is not easy to essence there are optical focal distance setting system
The true problem controlled and zoom rate is slower.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of Fresnel liquid lens
And system, for solving the problems, such as that optical focal distance setting system zoom is inconvenient in the prior art.
In order to achieve the above objects and other related objects, the utility model provides a kind of Fresnel liquid lens, the phenanthrene
Nie Er liquid lens includes:
1st groove ..., jth groove ..., the i-th groove, i >=j >=2, and i and j are positive integer；First liquid,
The material of first liquid includes conductor material；Second liquid, the material of the second liquid include insulating hydrophobic material, institute
The first liquid is stated insoluble in the second liquid；Jth plane intersects with lens plane, defines the first liquid in the jth groove
Contact interface with second liquid is the jth plane, and the plane where defining the Fresnel liquid lens is lens plane；
2nd groove to i-th groove and the 1st groove is arranged concentrically；It is all provided in 2nd groove to i-th groove
There are first liquid and the second liquid.
Optionally, first liquid and the second liquid are additionally provided in the 1st groove.
Optionally, the jth groove includes a jth cell wall for isolation, and the jth cell wall further includes one for insulating
Insulating layer and one for conductive conductive layer.
Optionally, in the jth groove, the insulating layer is respectively arranged at the conductive layer close to the jth groove
And the conductive layer far from the jth groove while.
Optionally, the material of the conductive layer includes indium oxide tin glass.
Optionally, the material of the insulating layer includes appointing for polytetrafluoroethylene (PTFE), Parylene and perfluor cyclic polymer
It anticipates one kind.
Optionally, jth groove further includes 02 electrode of 01 electrode of jth and jth, 01 electrode of jth and the conductive layer
Connection, 02 electrode of jth are connect with the first liquid in the jth groove.
Optionally, being additionally provided on one side close to the Fresnel liquid lens in 01 electrode of jth and 02 electrode of jth
Separation layer for insulation.
Optionally, the material of the separation layer includes appointing for polytetrafluoroethylene (PTFE), Parylene and perfluor cyclic polymer
It anticipates one kind.
Optionally, 01 electrode of jth and 02 electrode of the jth include the one one electrodes series, the one or two electrodes series, the
21 electrodes series and the two or two electrodes series, the one one electrodes series, the one or two electrodes series, the 2nd 1 electrodes series
And the two or two electrodes series are uniformly arranged along the circumferential direction of the Fresnel liquid lens.
A kind of Fresnel liquid lens system, comprising: the Fresnel liquid lens and power supply, the power supply with it is described
The first liquid series connection in jth groove and the jth groove.
As described above, in Fresnel Fresnel liquid lens provided by the utility model:
By the way that the first liquid in the 2nd groove to the i-th groove, and the 2nd groove to the i-th groove of conducting is connected, so that the 2nd
Electrowetting effect, jth plane run-off the straight occur for the first liquid in groove to the i-th groove, and light passes through the 2nd groove to i-th
Groove converges；
By the way that the first liquid in the 1st groove, and the 1st groove of conducting is connected, so that the first liquid in the 1st groove is sent out
Raw electrowetting effect, the curvature of the first liquid and second liquid contact interface change, and light converges when passing through 1 groove
It is poly-；
By the focal length f for controlling the 2nd groove to the i-th groove2With the focal length f of the 1st groove1Unanimously, realize that Fresnel liquid is saturating
Mirror focuses, and then realizes the miniaturization of Fresnel liquid lens, convenient for accurate control, expand application component application scenarios and
Enhance the applicability of application component；
By the way that multiple grooves are arranged or the groove of different-diameter is arranged, increase Fresnel liquid lens bore, improve
The focus adjustment range of Fresnel liquid lens；
Reduce the thickness of Fresnel liquid lens.
Detailed description of the invention
Fig. 1 is shown as the Fresnel liquid lens structure schematic diagram of the utility model embodiment
Fig. 2 is shown as the 1st groove and the 2nd groove structure schematic diagram in the utility model embodiment.
Fig. 3 is shown as jth groove structure schematic diagram in the utility model embodiment.
Fig. 4 is shown as Fresnel liquid lens overlooking structure diagram in the utility model embodiment.
Fig. 5 is shown as AOB schematic cross-section in Fig. 4.
Piece mark explanation
1 the 1st groove
2 the 2nd grooves
J jth groove
The i-th groove of i
The first liquid of A
B second liquid
The one one voltage of V11
The one or two voltage of V12
The 2nd 1 voltage of V21
The two or two voltage of V22
The 3rd 1 voltage of V31
The three or two voltage of V32
The 4th 1 voltage of V41
The four or two voltage of V42
V51 May Day voltage
The five or two voltage of V52
The 6th 1 voltage of V61
The six or two voltage of V62
V71 July 1st voltage
The seven or two voltage of V72
The 8th 1 voltage of V81
The eight or two voltage of V82
1 voltage of Vj1 jth
2 voltage of Vj2 jth
V(j-1)1(j-1) 1 voltage
20 separation layers
21 insulating layers
22 conductive layers
23 separation layers
J0 jth plane
J1 incident light
J2 reflects light
100 refraction points
101 optical centers
The one one electrodes series of U11
The one or two electrodes series of U12
The 2nd 1 electrodes series of U21
The two or two electrodes series of U22
Specific embodiment
Illustrate the embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this theory
Content disclosed by bright book understands other advantages and effect of the utility model easily.The utility model can also be by addition
Different specific embodiments are embodied or practiced, and the various details in this specification can also be based on different viewpoints and answer
With carrying out various modifications or alterations under the spirit without departing from the utility model.
Fig. 1 is please referred to Fig. 5.It should be noted that diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of utility model is only shown with related component in the utility model rather than when according to actual implementation in schema then
Component count, shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind
Become, 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, it is not limited to this reality
With novel enforceable qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or
The adjustment of size should all still fall in this reality in the case where not influencing the effect of the utility model can be generated and the purpose that can reach
It is obtained with novel revealed technology contents in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower",
The term of "left", "right", " centre " and " one " etc. is merely convenient to being illustrated for narration, rather than can to limit the utility model
The range of implementation, relativeness are altered or modified, under the content of no substantial changes in technology, can when being also considered as the utility model
The scope of implementation.
Referring to Fig. 1, the utility model provides a kind of Fresnel liquid lens, Fresnel liquid lens includes: the 1st groove
1 ..., jth groove j ..., the i-th groove i, i >=j >=2, and i and j are positive integer；First liquid A, first liquid
The material of A includes conductor material, and the conductor material can be the aqueous solution of electrolyte, and electrolyte can choose such as lithium bromide,
Such as sodium sulphate, in another example potassium chloride；The material of second liquid B, the second liquid B include insulating hydrophobic material, such as are selected
Silicone oil is taken, first liquid A does not dissolve in the second liquid B；Jth plane intersects with lens plane, defines the jth ditch
The contact interface of the first liquid and second liquid is the jth plane in slot, is defined flat where the Fresnel liquid lens
Face is lens plane；2nd groove is arranged concentrically to the i-th groove i and the 1st groove 1；2nd groove is to institute
It states and is equipped with first liquid A and the second liquid B in the i-th groove i, in use, external power supply point can be passed through
Not Dao Tong 1 to the i-th groove i of the 1st groove, and adaptively be connected the 2nd groove to the i-th groove i in the first liquid A, the 2nd ditch
Electrowetting effect occurs for the first liquid A in slot to the i-th groove i, due to the first liquid A and second liquid B and corresponding ditch
Contact angle between slot changes, therefore the first liquid A in groove and the shape of second liquid B contact interface become
Change, reflects when light passes through the 2nd groove to the i-th groove i, and generate focusing, in actual application, can also lead to
It crosses and different groove numbers and different trench diameters is set, reach the Fresnel liquid that different focal length range and different bores is made
Body lens, for example, 1st groove may be set to be small diameter when two neighboring trench diameter difference is smaller, light is the
Vertical intake occurs at 1 groove, the 1st groove may be arranged as plane mirror, and light is sent out at the 2nd groove to the i-th groove
Raw refraction, and then the focus of the 1st groove to the i-th groove can reach convergence.
Referring to Fig. 2, in other embodiments, being also provided with first liquid A and institute in the 1st groove 1
Second liquid B is stated, the diameter of the 1st groove 1 can be relatively large, due to the 2nd groove 2 to the i-th groove i and described the
1 groove 1 is arranged concentrically, therefore 2 to the i-th groove i of the 2nd groove can be ring structure, and the internal diameter of jth groove ring structure can be with
It is relatively small, it is focused by the cooperation of the 1st groove 1, the 2nd groove 2 to jth groove, realizes the poly- of 1 to the i-th groove of the 1st groove
Coke, carries out example with the 1st groove 1 and the 2nd groove 2, applies voltage V to the 1st groove 111, to the first liquid A in the 1st groove 1
Apply voltage V12, electrowetting effect occurs in the 1st groove 1, the first liquid A in the 1st groove 1 and second liquid B contact boundary
The Curvature varying in face, such as when application voltage increase, curvature becomes larger, and applies voltage V to the 2nd groove 221, in the 2nd groove 2
First liquid A applies voltage V22, the first liquid A and second liquid B contact interface in the 2nd groove 2 are relative to lens plane
Run-off the straight, light are converged by the 2nd groove 2.
Referring to Fig. 3, illustratively, the jth groove j includes the jth cell wall 20 for isolation, the jth cell wall 20
It further include that can be led for the insulating layer 21 of insulation and for conductive conductive layer 22 when needing jth groove j to focus
The first liquid A in logical (j-1) trench wall and jth trench wall 20, and conducting jth groove j, and to (j-1) trench wall
And jth trench wall 20 applies voltage V respectively(j-1)1And Vj1, voltage V is applied to the first liquid A in jth groove jj2, this
When, the first liquid A and the contact angle of (j-1) trench wall and second liquid B change, and the first liquid A in jth ditch
The contact angle of cell wall 20 and second liquid B change, and then jth plane j0 intersects with lens plane, and light is in jth plane j0
It can be converged when reflecting.
Preferably, the insulating layer 21 is respectively arranged at the conductive layer 22 close to the jth in the jth groove j
Groove j and the conductive layer 22 far from the jth groove j while, in order to improve the saturating of Fresnel liquid lens
Rate is crossed, the material of the conductive layer can be chosen indium oxide tin glass (ITO), and not only light percent of pass is high for indium oxide tin glass, and
And it can be conductive.
In order to aggravate electrowetting effect, the material of the insulating layer 21 can choose such as polytetrafluoroethylene (PTFE) (Teflon), example
Such as Parylene (Parylene), in another example perfluor cyclic polymer (Cytop), preferably, choosing perfluor cyclic polymer
(Cytop), not only there is insulating hydrophobic performance, but also there is good light pass-through.
Illustratively, driving electrodes conducting jth groove can be set and the first liquid A in jth groove is connected, accordingly
Ground, the conductive layer 22 of jth groove j described in 01 electrode conduction of jth, the first liquid A in 02 electrode conduction jth groove j of jth are
Short circuit and circuit mixed connection are prevented, it can be in jth 01 electrode close to isolation of the one side setting for insulation of Fresnel liquid lens
Similarly separation layer 23, the material of separation layer 23 can also be arranged close to the one side of Fresnel liquid lens in 02 electrode of jth in layer 23
Material can choose such as polytetrafluoroethylene (PTFE) (Teflon), such as Parylene (Parylene), in another example perfluor cyclic polymer
(Cytop), preferably, choosing perfluor cyclic polymer (Cytop), not only there is insulating hydrophobic performance, but also have good
Light pass-through can be in order to improve the binding force of separation layer 23 and 02 electrode of jth and improve the insulation performance of separation layer 23
One layer of transition zone is stacked between 02 electrode of separation layer 23 and jth, the material of the transition zone includes nickel, zinc or three oxidations two
At least one of aluminium.
It is controlled for the ease of winding displacement and convenient for voltage, if 01 electrode of jth and 02 electrode of jth can be divided into each and every one electrode
It arranges, is disposed adjacent or is isolated setting between Different electrodes column, the quantity of electrodes series can be 2,3,4 ..., 10, please refer to Fig. 4
And Fig. 5,01 electrode of jth and 02 electrode of jth may include the one one electrodes series U11, the one or two electrodes series U12, the 2nd 1 U21 electricity
Pole column and the two or two electrodes series U22, the first electrode column U11 can apply voltage V11, voltage V31, voltage V51And electricity
Press V71, the one one electrodes series U11 can apply voltage V11, voltage V31, voltage V51And voltage V71, the one or two electricity
Pole column U12 can apply voltage V12, voltage V32, voltage V52And voltage V72, the 2nd 1 electrodes series U21 can apply electricity
Press V21, voltage V41, voltage V61And voltage V81, the two or the two electrodes series U22 can apply voltage V22, voltage V42, voltage
V62And voltage V82, by by the one one electrodes series U11, the one or the two electrodes series U12, the 2nd 1 electrodes series
U21 and the two or the two electrodes series U22 is arranged along the circumferential direction of the Fresnel liquid lens, and realization is convenient for winding displacement and just
In the purpose of assembly, preferably, passing through the one one electrodes series U11, the one or the two electrodes series U12, the described 2nd 1
Electrodes series U21 and the two or the two electrodes series U22 along the Fresnel liquid lens circumferential direction with setting.
In another embodiment, a kind of Fresnel liquid lens system is provided, comprising: the Fresnel liquid lens and
Power supply, the power supply are connected with the first liquid in the jth groove and the jth groove.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (11)
1. a kind of Fresnel liquid lens, which is characterized in that the Fresnel liquid lens includes:
1st groove ..., jth groove ..., the i-th groove, i >=j >=2, and i and j are positive integer；
First liquid, the material of first liquid include conductor material；
Second liquid, the material of the second liquid include insulating hydrophobic material, and first liquid does not dissolve in second liquid
Body；
Jth plane intersects with lens plane, and it is described for defining the contact interface of the first liquid and second liquid in the jth groove
Jth plane, the plane where defining the Fresnel liquid lens are lens plane；
2nd groove to i-th groove and the 1st groove is arranged concentrically；
First liquid and the second liquid are equipped in 2nd groove to i-th groove.
2. Fresnel liquid lens according to claim 1, which is characterized in that be additionally provided with described in the 1st groove
One liquid and the second liquid.
3. Fresnel liquid lens according to claim 1, which is characterized in that the jth groove includes for isolation
Jth cell wall, the jth cell wall include for the insulating layer of insulation and for conductive conductive layer.
4. Fresnel liquid lens according to claim 3, which is characterized in that in the jth groove, the insulating layer
Be respectively arranged at the conductive layer close to the jth groove and the conductive layer far from the jth groove while.
5. Fresnel liquid lens according to claim 3, which is characterized in that the material of the conductive layer includes indium oxide
Tin glass.
6. Fresnel liquid lens according to claim 3, which is characterized in that the material of the insulating layer includes polytetrafluoro
One of ethylene, Parylene and perfluor cyclic polymer.
7. Fresnel liquid lens according to claim 3, which is characterized in that the jth groove further includes 01 electrode of jth
And 02 electrode of jth, 01 electrode of jth and the conductive layer are electrically connected, in 02 electrode of jth and the jth groove
The first liquid be electrically connected.
8. Fresnel liquid lens according to claim 7, which is characterized in that in 02 electricity of 01 electrode of jth and jth
Extremely close to the separation layer of the Fresnel liquid lens being additionally provided on one side for insulation.
9. Fresnel liquid lens according to claim 8, which is characterized in that the material of the separation layer includes polytetrafluoro
Any one of ethylene, Parylene and perfluor cyclic polymer.
10. Fresnel liquid lens according to claim 7, which is characterized in that 01 electrode of jth and described
J02 electrode include the one one electrodes series, the one or two electrodes series, the 2nd 1 electrodes series and the two or two electrodes series, the described 1st
Electrodes series, the one or two electrodes series, the 2nd 1 electrodes series and the two or two electrodes series are along the Fresnel liquid
The circumferential setting of body lens.
11. a kind of Fresnel liquid lens system characterized by comprising
Fresnel liquid lens and power supply as described in any one of claim 1 to 10, the power supply and the jth groove with
And the first liquid series connection in the jth groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803495.1U CN209446808U (en) | 2018-11-02 | 2018-11-02 | A kind of Fresnel liquid lens and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803495.1U CN209446808U (en) | 2018-11-02 | 2018-11-02 | A kind of Fresnel liquid lens and system |
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| CN209446808U true CN209446808U (en) | 2019-09-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188575A (en) * | 2018-11-02 | 2019-01-11 | 上海酷聚科技有限公司 | A kind of Fresnel liquid lens and focus controlling method |
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2018
- 2018-11-02 CN CN201821803495.1U patent/CN209446808U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188575A (en) * | 2018-11-02 | 2019-01-11 | 上海酷聚科技有限公司 | A kind of Fresnel liquid lens and focus controlling method |
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