阅读说明：本技术 微流控逻辑运算单元及薄膜透镜调焦系统 (Microfluidic logic arithmetic element and thin film lens focusing system ) 是由 孙道恒 周洲 张昆鹏 邱彬 于 2019-08-28 设计创作，主要内容包括：本发明公开了一种微流控逻辑运算单元及薄膜透镜调焦系统,具有逻辑网路的流体结构,用于解决目前气动或液压薄膜透镜控制依赖于电磁阀系统的问题,具有轻量化,集成化的特点。本发明的基于微流控数字压力控制技术的解决方案,建立了薄膜透镜的焦距与输入信号之间的加法关系,为无外部电磁阀驱动的薄膜透镜等流体透镜的控制提供了新的方法,同时其加法逻辑更利于用户理解和使用。本专利发明了微流控加法逻辑结构,并将加法逻辑的输出端与微流控译码器相连,通过控制具有不同流阻的流道开启和关闭,运用流体的分压原理改变透镜空腔的输入压力,实现与并联多流阻流道数量相同的多阶透镜焦距调节功能。(The invention discloses a kind of microfluidic logic arithmetic element and thin film lens focusing system, the fluidic structures with logic network, for solving the problems, such as that at present pneumatically or hydraulically thin film lens control has lightweight, integrated feature dependent on solenoid valve system.Solution based on micro-fluidic digital pressure control technology of the invention, establish the addition relationship between the focal length of thin film lens and input signal, the control of the fluid lens such as the thin film lens for the driving of no external electrical magnet valve provides new method, while its adder logic is more conducive to user and understands and use.The micro-fluidic adder logic structure of invention, and the output end of adder logic is connected with micro-fluidic decoder, by controlling there is the runner of different flow resistances to open and close, change the input pressure of lens cavity with the voltage divider principle of fluid, realizes multistage focal length of lens regulatory function identical with multithread choked flow in parallel road quantity.)

1. a kind of microfluidic logic arithmetic element, specially half adder unit, it is characterised in that: including first input end, second Input terminal, carry output, carry reversed-phase output and position output end and bit Inverting output end and 9 microfluidic cells；

The microfluidic cell be non-door, including the first signal runner, second signal runner and control runner, described first Signal runner is configured with normal pressure, and the second signal channel arrangement has negative pressure, and the control runner is the microfluidic cell Input terminal, the second signal runner are the output end of the microfluidic cell, and when control runner inputs negative pressure, expression inputs 1, The first signal runner and the conducting of second signal runner, the air pressure of second signal runner are under the action of the first signal runner Normal pressure indicates output 0；When control runner input is normal pressure, expression input 0, the first signal runner and second signal runner Partition, the air pressure of second signal runner are negative pressure under the action of negative pressure, indicate output 1；

First microfluidic cell, third microfluidic cell, the 4th microfluidic cell, the 5th microfluidic cell, the 6th micro-fluidic list Member, the 7th microfluidic cell, the 9th microfluidic cell the first signal runner connect normal pressure,

Second microfluidic cell, third microfluidic cell, the 4th microfluidic cell, the 5th microfluidic cell, the 6th micro-fluidic list Member, the 7th microfluidic cell, the 8th microfluidic cell second signal runner connect negative pressure；

The control runner phase of the control runner and the 4th microfluidic cell of the first input end and first microfluidic cell Even；The control runner phase of the control runner and the 5th microfluidic cell of second input terminal and second microfluidic cell Even；

The second signal runner of second microfluidic cell is connected with the control runner of third microfluidic cell；

First microfluidic cell, the second microfluidic cell and third microfluidic cell constitute a logical AND structure, described The second signal runner of third microfluidic cell is connected with the carry output；The control runner of the third microfluidic cell It is connected with the carry reversed-phase output；

The second signal runner of 4th microfluidic cell and the second signal runner and the 6th miniflow of the 5th microfluidic cell The control runner for controlling unit is connected；

4th microfluidic cell, the 5th microfluidic cell and the 6th microfluidic cell constitute a logic or structure, described The second signal runner of 6th microfluidic cell and the control runner of the 9th microfluidic cell are connected；

The control runner of 8th microfluidic cell is connected with the second signal runner of third microfluidic cell；

The control runner of 9th microfluidic cell and the second signal runner of the 6th microfluidic cell are connected；

7th microfluidic cell, the 8th microfluidic cell and the 9th microfluidic cell constitute a logical AND structure, described The second signal runner of first signal runner of the 8th microfluidic cell and the 9th microfluidic cell be connected, the 8th miniflow The control runner of the second signal runner and the 7th microfluidic cell of controlling unit is connected, the second letter of the 7th microfluidic cell Number runner is connected with described with position output end, the control runner of the 7th microfluidic cell and described and bit Inverting output end It is connected.

2. a kind of microfluidic logic arithmetic element, specially unit of full adder, it is characterised in that: including the first half adder unit, Second half adder unit, logic or unit, carry input, first input end, the second input terminal and position output end and carry are defeated Outlet；

The first half adder unit and the second half adder unit are half adder unit as described in claim 1；

The logic or unit include first input end, the second input, output end and reversed-phase output；

The first input end of the full adder, the second input terminal of full adder are connected respectively to the first input end of the first half adder With the second input terminal of the first half adder, the carry input of the full adder is connected to the first input end of the second half adder；

First half adder and position output end be connected to the second input terminal of the second half adder, first half adder into The carry output of position output end and the second half adder is connected respectively to the first input end and the second input terminal of logic or unit；

The output end of logic or unit is connected to the carry output of full adder, and the reversed-phase output connection of logic or unit is complete to be added The carry reversed-phase output of device；

Second half adder connect the full adder with position output end and position output end；

Second half adder connect the full adder with bit Inverting output end and bit Inverting output end.

3. microfluidic logic arithmetic element as claimed in claim 2, it is characterised in that: the logic or unit are micro- including the tenth Flow control unit, the 11st microfluidic cell and the 12nd microfluidic cell,

First signal runner of the tenth microfluidic cell and the 11st microfluidic cell connects normal pressure, the tenth micro-fluidic list The second signal runner of member and the 11st microfluidic cell connects negative pressure；

The second signal runner of tenth microfluidic cell and the second signal runner of the 11st microfluidic cell are also connected with The control runner of 12 microfluidic cells, the first signal runner of the 12nd microfluidic cell connect normal pressure, the 12nd micro-fluidic list The second signal runner of member connects negative pressure and exports the output end as logic or unit；The control of 12nd microfluidic cell Runner is exported as logic or the reversed-phase output of unit.

4. a kind of microfluidic logic arithmetic element, specially N adder unit, it is characterised in that: the N adder unit Including cascade N number of unit of full adder, the unit of full adder is unit of full adder as claimed in claim 2, N described Adder unit includes N number of first input end, N number of second input terminal, N number of and position output end, N number of and bit Inverting output end, with And carry input, carry output and carry reversed-phase output；

Wherein, the carry input of the 1st full adder of N adder units is set as logical zero；The carry of n-th unit of full adder The connection of the carry input of output end and the (n+1)th full adder；The carry output of N full adder be N adder units into Position output end；The carry reversed-phase output of N full adder is the carry reversed-phase output of N adder units；

N-th full adder is n-th and position output end of N adder units with position output end；

N-th full adder is n-th and bit Inverting output end of N adder units with bit Inverting output end；

Wherein n=1,2 ..., N.

5. a kind of thin film lens focusing system based on microfluidic logic arithmetic element, it is characterised in that: including microfluidic logic Arithmetic element, digital pressure adjuster and thin film lens,

The microfluidic logic arithmetic element is N adder units, has N first input ends, the second input terminal of the position N and N Position and position output end, N and bit Inverting output end and a carry output, a carry reversed-phase output；

The digital pressure adjuster includes the runner with different flow resistances resistance value, and the runner is controlled by microfluidic cell, The control runner of the microfluidic cell is connected to the microfluidic logic arithmetic element output end respectively, the digital pressure tune The output end of section device is connected to the pressure entrance of thin film lens；The Fluid pressure amount that the microfluidic logic arithmetic element is exported Change value is and accumulating single runner with the Fluid pressure by opening the different runners combination of the digital pressure adjuster The corresponding Fluid pressure of quantized value, the thin film lens adjust the focal length of thin film lens according to the Fluid pressure.

6. as claimed in claim 5 based on the thin film lens focusing system of microfluidic logic arithmetic element, it is characterised in that: institute Stating thin film lens is both ends by the closed through-hole structure of elastic film, and the through-hole structure is drawn by the pressure entrance of cavity sidewalls Out, the consecutive variations for realizing the curvature of centre of the elastic film are adjusted by the input pressure to through-hole structure, in turn Achieve the purpose that continuously to focus.

7. a kind of thin film lens focusing system based on microfluidic logic arithmetic element, it is characterised in that: including micro-fluidic control Device, microfluidic logic arithmetic element, digital pressure adjuster, micro-fluidic decoder and thin film lens array,

The micro-fluidic decoder includes multiple gating control runners, a public runner and multiple delivery channels, the output Runner is connected to the one-to-one correspondence of the thin film lens of thin film lens array；The multiple gating control runner gates certain by combination One delivery channel is connected to public runner；

The delivery channel of the microfluidic logic arithmetic element is connected to the input duct of the digital pressure adjuster, by fluid Pressure quantized value is converted into the Fluid pressure of single runner, and exports from the delivery channel of the digital pressure adjuster；

The delivery channel of the digital pressure adjuster is connected to the public runner of the micro-fluidic decoder.

8. as claimed in claim 7 based on the thin film lens focusing system of microfluidic logic arithmetic element, it is characterised in that:

The micro-fluidic decoder includes 2N gating control runner, 1 input duct and 2^NA delivery channel, described 2^NIt is a defeated One end parallel connection of runner is connected to input duct out,

The gating control runner and the delivery channel intersect according to gate logic and at the control nodes of array distribution, each The control node is a microfluidic cell,

Microfluidic cell on same delivery channel forms logical AND, when all microfluidic cells of same delivery channel are opened When, delivery channel conducting；

Microfluidic cell on the same gating control runner, opens simultaneously, simultaneously closes off；

The 2N gating control runner is that N controls runner to gating, and each pair of gating control runner only allows it in the same time In one unlatching.

Technical field

The present invention relates to a kind of microfluidic logic arithmetic element, in particular to microfluidic logic arithmetic element and miniflow is based on Control the thin film lens focusing system of logical unit.

Background technique

With modern electronic devices optical system to micromation, integrated direction development, especially 3D imaging, wide-angle at As the aggravation of the demands such as micro lens, the zoom performance of microlens array is put forward new requirements.Traditional microlens array makes With materials such as glass, quartz, PMMA by etching or pouring technology production, although structure can accomplish to be miniaturized, due to material Material self character cannot achieve optical zoom behavior.Fluid lens are the novel changable focus microlens technologies occurred in recent years, should Technology generates optical cross section Curvature varying by surface deformation of the fluid under external force, realizes the adjusting of focal length, and driving force can be with From electrowetting, the thermal deformation of the deformation of thin membrane and fluid that wrap up drop, light deformation etc., wherein PDMS film lens are fluids Light guide fluid is enclosed in closed cavity by a kind of special shape of lens, the structure, and cavity upper and lower surface is flexible PDMS activates film, and when fluid, which is under pressure, to be acted on, deformation of thin membrane causes Flow Optical section recess or protrusion, leads to focal length Variation, different according to driving pressure carry out continuously adjusting for focal length.What the technology overcame in traditional liquid lens many asks Topic, such as the limited size of bore, it is difficult to heavy caliber liquid lens be made；Optical axis is unstable to be easy to cause image fault serious；It drives Dynamic voltage is higher, typically greater than 100V；Gu there are saturation values for-liquid interfacial contact angle, focus non-linear；It is with high costs etc..By Curved surface forming can be carried out by techniques such as casting in elastic construction, this film lenticule is in the optics knot such as following bionic compound eyes There is huge application prospect in structure.From principle, thin film lens is a kind of based on pressure-actuated structure type, when independent When driving, control structure is extremely simple, can be adjusted by switch and pressure of the single solenoid valve to lens, but when more The lens array of a lens composition and when needing individually to control each of these, n lens need corresponding n runner With control solenoid valve, for real biological compound eye, this number is about between 1~30,000.Simultaneously using traditional control method It is not able to satisfy biomimetic features lightweight, integrated feature, needs to find light-weighted control unit instead of electromagnetic control system.

Micro-fluidic film micro-valve is one kind using elastic film as spool, realizes that runner is opened with being bonded for wall surface by film With the fluid control elements of closure, this micro-valve structure is simple, and size is small, can be collected on a large scale on one chip At.The equivalent circuit theory of fluid be it is a kind of electric current is considered as flow, resistance is considered as flow resistance, and voltage is considered as fluid in runner Pressure drop, capacitor are considered as the fluid logic network design method of elastic cavity volume change.By the equivalent circuit design principle of fluid It is coupled with film micro-valve structure, the fluid logic control device with circuit function, input and input therein can be obtained It is air pressure or hydraulic pressure signal, makes the control of fluid that can be detached from the dependence to Electromagnetic Control.In patent US20080029169A1 The large scale array method of film micro-valve is proposed, by decoder this circuit structure in conjunction with fluid network, the road n is devised and enters Mouth control 2ⁿThe fluid network of way outlet, which is applied in the sample sorting and sample introduction device of Biochemistry Experiment, real The addressing sample introduction function of various ingredients sample is showed.The micro-fluidic application in aerodynamics logic control field of the structure verification is latent Power.But what it is by the foundation of the logical course of decoder is binary number and the one-to-one relationship of output, lacks fortune in logic Function is calculated, especially needs signal that the variation of great-jump-forward occurs in input handoff procedure, it is difficult to establish user and clearly count It is worth logical relation.

Summary of the invention

The first object of the present invention is to provide a kind of microfluidic logic arithmetic element, can be patrolled based on microfluidic cell Operation is collected, and exports operation result；

The second object of the present invention is to provide a kind of thin film lens focusing system based on microfluidic logic arithmetic element, To solve the problems, such as that thin film lens is continuously focused；

The third object of the present invention is to provide a kind of thin film lens focusing system based on microfluidic logic arithmetic element, Applied to large-scale membrane array, to solve the focusing control of extensive thin film lens array.

The first purpose to realize the present invention, the present invention the following technical schemes are provided:

A kind of microfluidic logic arithmetic element, specially half adder unit, including first input end, the second input terminal, into Position output end, carry reversed-phase output and position output end and bit Inverting output end and 9 microfluidic cells；

The microfluidic cell be non-door, including the first signal runner, second signal runner and control runner, it is described First signal runner is configured with normal pressure, and the second signal channel arrangement has negative pressure, and the control runner is the micro-fluidic list The input terminal of member, the second signal runner are the output end of the microfluidic cell, and when control runner inputs negative pressure, expression is defeated Enter 1, the first signal runner and the conducting of second signal runner, the effect of the air pressure of second signal runner in the first signal runner Down it is normal pressure, indicates output 0；When control runner input is normal pressure, expression input 0, the first signal runner and second signal Runner partition, the air pressure of second signal runner are negative pressure under the action of negative pressure, indicate output 1；

First microfluidic cell, third microfluidic cell, the 4th microfluidic cell, the 5th microfluidic cell, the 6th miniflow Control unit, the 7th microfluidic cell, the 9th microfluidic cell the first signal runner connect normal pressure,

Second microfluidic cell, third microfluidic cell, the 4th microfluidic cell, the 5th microfluidic cell, the 6th miniflow Control unit, the 7th microfluidic cell, the 8th microfluidic cell second signal runner connect negative pressure；

The control stream of the control runner and the 4th microfluidic cell of the first input end and first microfluidic cell Road is connected；The control runner of the control runner and the 5th microfluidic cell of second input terminal and second microfluidic cell It is connected；

The second signal runner of second microfluidic cell is connected with the control runner of third microfluidic cell；

First microfluidic cell, the second microfluidic cell and third microfluidic cell constitute a logical AND structure, The second signal runner of the third microfluidic cell is connected with the carry output；The control of the third microfluidic cell Runner is connected with the carry reversed-phase output；

The second signal runner of 4th microfluidic cell and the second signal runner and the 6th of the 5th microfluidic cell The control runner of microfluidic cell is connected；

4th microfluidic cell, the 5th microfluidic cell and the 6th microfluidic cell constitute a logic or structure, The second signal runner of 6th microfluidic cell and the control runner of the 9th microfluidic cell are connected；

The control runner of 8th microfluidic cell is connected with the second signal runner of third microfluidic cell；

The control runner of 9th microfluidic cell and the second signal runner of the 6th microfluidic cell are connected；

7th microfluidic cell, the 8th microfluidic cell and the 9th microfluidic cell constitute a logical AND structure, The second signal runner of first signal runner of the 8th microfluidic cell and the 9th microfluidic cell be connected, the described 8th The control runner of the second signal runner of microfluidic cell and the 7th microfluidic cell is connected, and the of the 7th microfluidic cell Binary signal runner is connected with described with position output end, and the control runner of the 7th microfluidic cell and described and bit Inverting are defeated Outlet is connected.

A kind of microfluidic logic arithmetic element, specially unit of full adder, including the first half adder unit, the second half adder Unit, logic or unit, carry input, first input end, the second input terminal and position output end and carry output；

The first half adder unit and the second half adder unit are half adder unit as described in claim 1；

The logic or unit include first input end, the second input, output end and reversed-phase output；

It is first defeated to be connected respectively to the first half adder for the first input end of the full adder, the second input terminal of full adder Enter the second input terminal of end and the first half adder, the carry input of the full adder is connected to the first input of the second half adder End；

The second input terminal that the second half adder is connected to position output end of first half adder, first half adder Carry output and the carry output of the second half adder be connected respectively to the first input end of logic or unit and second defeated Enter end；

The output end of logic or unit is connected to the carry output of full adder, the reversed-phase output connection of logic or unit The carry reversed-phase output of full adder；

Second half adder connect the full adder with position output end and position output end；

Second half adder connect the full adder with bit Inverting output end and bit Inverting output end.

Further, the logic or unit include that the tenth microfluidic cell, the 11st microfluidic cell and the 12nd are micro- Flow control unit,

First signal runner of the tenth microfluidic cell and the 11st microfluidic cell connects normal pressure, the tenth miniflow The second signal runner of control unit and the 11st microfluidic cell connects negative pressure；

The second signal runner of tenth microfluidic cell and the second signal runner of the 11st microfluidic cell also connect The control runner of the 12nd microfluidic cell is connect, the first signal runner of the 12nd microfluidic cell connects normal pressure, the 12nd miniflow The second signal runner of control unit connects negative pressure and exports the output end as logic or unit；12nd microfluidic cell Runner output is controlled as logic or the reversed-phase output of unit.

A kind of microfluidic logic arithmetic element, specially N adder unit, the N adder unit include cascade N number of unit of full adder, the unit of full adder is unit of full adder as claimed in claim 2, the N adder list Member includes that N number of first input end, N number of second input terminal, N number of and position output end, N number of and bit Inverting output end and carry are defeated Enter end, carry output and carry reversed-phase output；

Wherein, the carry input of the 1st full adder of N adder units is set as logical zero；N-th unit of full adder The connection of the carry input of carry output and the (n+1)th full adder；The carry output of N full adder is N adder units Carry output；The carry reversed-phase output of N full adder is the carry reversed-phase output of N adder units；

N-th full adder is n-th and position output end of N adder units with position output end；

N-th full adder is n-th and bit Inverting output end of N adder units with bit Inverting output end；

Wherein n=1,2 ..., N.

The second purpose to realize the present invention, the present invention the following technical schemes are provided:

A kind of thin film lens focusing system based on microfluidic logic arithmetic element, including microfluidic logic arithmetic element, Digital pressure adjuster and thin film lens,

The microfluidic logic arithmetic element is N adder units, has N first input ends, the second input terminal of the position N With N and position output end, N and bit Inverting output end and a carry output, a carry reversed-phase output；

The digital pressure adjuster includes the runner with different flow resistances resistance value, and the runner passes through microfluidic cell control System, the control runner of the microfluidic cell are connected to the microfluidic logic arithmetic element output end respectively, the number pressure The output end of draught control mechanism is connected to the pressure entrance of thin film lens；The fluid pressure that the microfluidic logic arithmetic element is exported Power quantized value is and accumulating single runner with the fluid by opening the different runners combination of the digital pressure adjuster The corresponding Fluid pressure of pressure quantized value, the thin film lens adjust the focal length of thin film lens according to the Fluid pressure.

Further, the thin film lens is both ends by the closed through-hole structure of elastic film, and the through-hole structure passes through The pressure entrance of cavity sidewalls is drawn, and the center for realizing the elastic film is adjusted by the input pressure to through-hole structure The consecutive variations of curvature, and then achieve the purpose that continuously to focus.

Third purpose to realize the present invention, the present invention the following technical schemes are provided:

A kind of thin film lens focusing system based on micro-fluidic adder, including controller, microfluidic logic arithmetic element, Digital pressure adjuster, micro-fluidic decoder and thin film lens array,

The micro-fluidic decoder includes that multiple gatings control runners, a public runner and multiple delivery channels, described Delivery channel is connected to the one-to-one correspondence of the thin film lens of thin film lens array；The multiple gating control runner passes through combination choosing Lead to a certain delivery channel to be connected to public runner；

The delivery channel of the microfluidic logic arithmetic element is connected to the input duct of the digital pressure adjuster, will Fluid pressure quantized value is converted into the Fluid pressure of single runner, and exports from the delivery channel of the digital pressure adjuster；

The delivery channel of the digital pressure adjuster is connected to the public runner of the micro-fluidic decoder.

Further, the micro-fluidic decoder includes 2N gating control runner, 1 input duct and 2^NA output stream Road, described 2^NOne end parallel connection of a delivery channel is connected to input duct,

Gating control runner and the delivery channel intersect according to gate logic and at the control nodes of array distribution, Each control node is a microfluidic cell,

Microfluidic cell on the same delivery channel forms logical AND, when all micro-fluidic lists of same delivery channel When member is opened, delivery channel conducting；

Microfluidic cell on the same gating control runner, opens simultaneously, simultaneously closes off.

The 2N gating control runner is that N controls runner to opposite gating, and each pair of gating control runner is in same a period of time Between only allow one of open.

The present invention provides a kind of microfluidic logic arithmetic element, the structure of specially micro-fluidic half adder, and based on micro- The structure extension of flow control half adder forms the structure of micro-fluidic full adder and micro-fluidic adder, solves the logic of micro-fluidic progress Operation control problem.

The present invention provides a kind of thin film lens focusing systems based on microfluidic logic arithmetic element, patrol in conjunction with micro-fluidic Arithmetic element and digital pressure regulator are collected, Fluid pressure quantized value is converted into the Fluid pressure of single runner, by that will flow Body pressure quantized value continuously changes, to solve the problems, such as that thin film lens is continuously focused；

The present invention provides a kind of thin film lens focusing systems based on microfluidic logic arithmetic element, further combined with micro- Flow control decoder realizes the gating to the thin film lens of thin film lens array, to solve the focusing of extensive thin film lens array Control.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the thin film lens focusing system of the invention based on microfluidic logic unit；

Fig. 2 is the sectional view of thin film lens of the invention；

Fig. 3 A, Fig. 3 B are micro-valve working state figures；

Fig. 4 is micro-valve structural schematic diagram of the invention；

Fig. 5 is the structural schematic diagram of micro-fluidic half adder of the invention；

Fig. 6 is the logic interfacing schematic diagram of micro-fluidic half adder of the invention；

Fig. 7 be microfluidic logic or structural schematic diagram；

Fig. 8 be microfluidic logic or logic interfacing schematic diagram；

Fig. 9 is the logic diagram of micro-fluidic full adder；

Figure 10 is the logic diagram of 4 micro-fluidic full adders；

Figure 11 is thin film lens array control system functional block diagram；

Figure 12 is micro-fluidic decoder array structural schematic diagram.

Specific embodiment

To further illustrate that each embodiment, the present invention are provided with attached drawing.These attached drawings are that the invention discloses one of content Point, mainly to illustrate embodiment, and the associated description of specification can be cooperated to explain the operation principles of embodiment.Cooperation ginseng These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure Component be not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.

Now in conjunction with the drawings and specific embodiments, the present invention is further described.