CN102799040A - Method for preparing novel electronic control zooming polymer dispersed liquid crystal lens - Google Patents
Method for preparing novel electronic control zooming polymer dispersed liquid crystal lens Download PDFInfo
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- CN102799040A CN102799040A CN2012103324291A CN201210332429A CN102799040A CN 102799040 A CN102799040 A CN 102799040A CN 2012103324291 A CN2012103324291 A CN 2012103324291A CN 201210332429 A CN201210332429 A CN 201210332429A CN 102799040 A CN102799040 A CN 102799040A
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Abstract
The invention discloses a method for preparing a novel electronic control zooming polymer dispersed liquid crystal lens. According to the method firstly, a rotary laminating method is adopted to uniformly coat a layer of photoresist on a glass substrate which is plated with a transparent conducting film, after exposing, developing, etching, cavity preparing and filling of prepolymer mixture of the polymer dispersed liquid crystal, a liquid crystal box is obtained after photopolymerization solidification. Electrodes at specific addresses on the glass substrate of the liquid crystal box are selected to combine a Fresnel zone plate, then voltage is applied, a liquid crystal director in the dispersed liquid crystal is changed under the action of an applied electric field, and thus the liquid crystal box is distributed as the Fresnel zone plate and a lens effect is shown after diffraction; and the selected electrodes are changed by an electrode address control circuit according to the address requirement to combine a new Fresnel zone plate with a different focal length, and then the voltage is applied, so the purpose of subdivision focal length quasi-continuous zooming is reached. The method also has the advantages of no moving part, low power consumption, short response time, accurate zooming, easiness in miniaturization and the like, and has a wide application prospect in zooming optical imaging systems, video detecting camera systems, photo memories, digital video disk (DVD) machine optical heads, optical communication and the like.
Description
Technical field
The present invention relates to a kind of new electronic control zoom PDLC lens method for making, particularly need small integrated movement-less part and object distance to change and the fixing electric control varifocal lens of imaging surface.
Background technology
Diffraction optics not only can increase degree of freedom in design in optical design, and can break through the limitation of the many aspects of conventional optical systems.Thereby, improving the system imaging quality, reduce volume and show the conventional optical systems incomparable advantage, and receive the attention of increasing optical designers with aspect such as reduce cost.Variable focal length optical system has obtained to use widely on various optical instruments, and some new design philosophys emerge in an endless stream.The design's main thought is to utilize the electro-optical characteristic of PDLC; Change the purpose that the distribution of Fresnel wavestrip reaches lens segmentation focal length continuous vari-focus through external electrical field; Thereby make lens arrangement compact, light and handy; Zoom is more convenient, accurate, and has avoided complicated lens mechanical motion in the traditional zoom system.Can not only on all kinds of digital vedio recording products, be used widely, more can represent its remarkable value such as numerous areas such as military affairs, medical treatment, space flight in others.
Summary of the invention
Goal of the invention: the present invention is the new electronic control zoom PDLC lens method for making that a kind of solid-state, no moving-member, fast speed, low-power consumption will be provided, be beneficial to system's miniaturization.
Technical scheme: a kind of new electronic control zoom PDLC lens method for making, concrete steps are:
(1) preparation has the mask plate that waits the width donut, and the annulus width is a submicron order, and the gap is more little good more between the adjacent annulus, with can realize, adjacent two electrodes do not produce electric connection and are advisable;
(2) two circular glass substrates that are coated with the ITO nesa coating of preparation are having the transparent conducting film glass substrate to have the electrode one side evenly to be coated with the last layer photoresist with the rotation method with plastic film;
(3) utilize the mask plate of making in the step (1), the glass substrate that scribbles photoresist is made public under the ultraviolet photolithographic machine,, on glass substrate, obtain the ITO concentric ring electrode through development, etching;
(4) concentric ring electrode on the two sheet glass substrates is aimed at, sealed with epoxy resin all around, and be reserved with an osculum, constitute a cavity, cavity thickness is controlled with interval body;
(5) in cavity, pour into the PDLC pre-polymer mixture, and the osculum of reserving is sealed, again liquid crystal cell is placed the even laser light field exposure down of the 514nm of Argon ion laser outgoing, process the PDLC liquid crystal cell;
(6) utilize the electrode address control circuit to select the ITO concentric ring electrode of particular address to constitute the fresnel's zone plate pattern; Each Fresnel zone ring is made up of the continuous ITO concentric ring electrode of some; And to selected electrode application voltage; The liquid crystal director direction is regulated and control by electric field in the PDLC, and the liquid crystal director direction in powered electrode zone is parallel to direction of an electric field, therefore; Be Fresnel zone plate under the alive outside regulation and control of liquid crystal cell and distribute, present lens effect through diffraction;
(7) utilize control circuit to change the energising round loop electrode, can obtain the Fresnel zone pattern of different focal, reach the purpose of the accurate continuous vari-focus of segmentation focal length by the requirement of electrode address.
A kind of new electronic control zoom PDLC lens; Liquid crystal cell, box interpolymer dispersed LCD and electrode address control circuit by two circular glass substrates are processed are formed; It is characterized in that being carved with the ITO concentric ring electrode on described two circular glass substrates; ITO concentric ring electrode width equates (submicron order), and adjacent two donut gaps are more little good more, with can realize, adjacent two electrodes do not produce to electrically connect and are advisable.Encapsulation forms described liquid crystal cell to the heart by two circular glass substrates.Described electrode address control circuit applies the electrode of voltage according to the good electrode address selection of calculated in advance, is combined into the Fresnel zone plate of different focal.Described liquid crystal cell is filled by polymer dispersion liquid crystal material.
Beneficial effect: the method that the present invention is based on automatically controlled PDLC realizes the zoom of lens, have that solid-state, movement-less part, response time are short, focusing accurately, be easy to fine quality such as miniaturization.Can not only on all kinds of digital vedio recording products, be used widely, more can represent its remarkable value at numerous areas such as military affairs, medical treatment, space flight.
Description of drawings
Fig. 1 is the circular glass substrate synoptic diagram that has the ITO concentric ring electrode
Fig. 2 is the liquid crystal cell front elevation
Fig. 3 is the liquid crystal cell diagrammatic cross-section
Fig. 4 is selected energising round loop electrode synoptic diagram
Fig. 5 is automatically controlled PDLC lens focus synoptic diagram
Fig. 6 is focal length selected energising round loop electrode comparison diagram when being respectively 3mm and 4mm
Fig. 7 is automatically controlled PDLC lens zoom synoptic diagram
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described further.
The present invention is a kind of new electronic control zoom PDLC lens method for making, and the practical implementation step is:
(1) preparation has the mask plate that waits the width donut, and the annulus width is a submicron order, and the gap is more little good more between the adjacent annulus, with can realize, adjacent two electrodes do not produce electric connection and are advisable;
(2) two circular glass substrates that are coated with the ITO nesa coating of preparation are having the transparent conducting film glass substrate to have the electrode one side evenly to be coated with the last layer photoresist with the rotation method with plastic film;
(3) utilize the mask plate of making in the step (1), the glass substrate that scribbles photoresist is made public under the ultraviolet photolithographic machine, through development, etching; On glass substrate, obtain the ITO concentric ring electrode, as shown in Figure 1,101 is glass substrates among the figure; The 102nd, concentric ring electrode, the 103rd, non-electrode district;
(4) concentric ring electrode on the two sheet glass substrates is aimed at, sealed with epoxy resin all around, be reserved with an osculum, constitute a cavity, cavity thickness is controlled with interval body;
(5) in cavity, pour into the PDLC pre-polymer mixture, and the osculum of reserving is sealed, again liquid crystal cell is placed the even laser light field exposure down of the 514nm of Argon ion laser outgoing; Process the PDLC liquid crystal cell, the front elevation for the liquid crystal cell after the perfusion PDLC shown in Figure 2, the 201st, epoxy resin envelope box glue; The 202nd, the PDLC in the liquid crystal cell; The liquid crystal cell diagrammatic cross-section is as shown in Figure 3, and wherein 301 is concentric wide ring electrodes, and the 302nd, epoxy resin envelope box glue; The 303rd, PDLC, the 304th, glass substrate;
(6) utilize the electrode address control circuit to select the ITO concentric ring electrode of particular address to constitute the fresnel's zone plate pattern, each Fresnel zone ring is made up of the continuous ITO concentric ring electrode of some, and to selected electrode application voltage; The liquid crystal director direction is regulated and control by electric field in the PDLC, and the liquid crystal director direction in powered electrode zone is parallel to direction of an electric field, therefore; Being Fresnel zone plate under the alive outside regulation and control of liquid crystal cell distributes; Present lens effect through diffraction, Fig. 4 is selected energising round loop electrode synoptic diagram, and wherein 401 is selected powered electrode zones; The 402nd, powered electrode is not regional; Fig. 5 is automatically controlled PDLC lens focus synoptic diagram, the 501st, and liquid crystal cell, the 502nd, to the added voltage of round loop electrode;
(7) utilize control circuit to change the energising round loop electrode by the requirement of electrode address; Can obtain the Fresnel zone pattern of different focal; Reach the purpose of segmentation focal length accurate continuous vari-focus, Fig. 6 is focal length selected energising round loop electrode comparison diagram when being respectively 3mm and 4mm, and Fig. 7 is a lens zoom synoptic diagram.
A kind of new electronic control zoom PDLC lens are made up of liquid crystal cell, box interpolymer dispersed LCD and electrode address control circuit that two circular glass substrates are processed.It is characterized in that being carved with the ITO concentric ring electrode on described two circular glass substrates; ITO concentric ring electrode width equates (submicron order), and adjacent two donut gaps are more little more little, with can realize, adjacent two electrodes do not produce to electrically connect and are advisable; Fig. 1 is the circular glass substrate synoptic diagram that has the ITO concentric ring electrode; 101 is glass substrates among the figure, the 102nd, and concentric ring electrode, the 103rd, non-electrode district.Encapsulation forms described liquid crystal cell to the heart by two circular glass substrates, and Fig. 2 is the liquid crystal cell front elevation, and the 201st, epoxy resin envelope box glue; The 202nd, the PDLC in the liquid crystal cell; The liquid crystal cell diagrammatic cross-section is as shown in Figure 3, and wherein 301 is concentric wide ring electrodes, and the 302nd, epoxy resin envelope box glue; The 303rd, PDLC, the 304th, glass substrate.Described electrode address control circuit applies the electrode of voltage according to the good electrode address selection of calculated in advance; Be combined into the Fresnel zone plate of different focal; Each Fresnel zone ring is made up of the continuous ITO concentric ring electrode of some; Fig. 4 is selected energising round loop electrode synoptic diagram, and wherein 401 is selected powered electrode zones, the 402nd, and powered electrode is not regional.To selected electrode application voltage; The liquid crystal director direction is regulated and control by electric field in the PDLC, and the liquid crystal director direction in powered electrode zone is parallel to direction of an electric field, therefore; Being Fresnel zone plate under the alive outside regulation and control of liquid crystal cell distributes; Present lens effect through diffraction, Fig. 6 is focal length selected energising round loop electrode comparison diagram when being respectively 3mm and 4mm, can be combined into the Fresnel zone plate of different focal through the concentric ring electrode of selecting different addresses.Fill by polymer dispersion liquid crystal material in the described liquid crystal cell.
Claims (1)
1. new electronic control zoom PDLC lens method for making is characterized in that: comprise following concrete making step:
1. preparation has the mask plate that waits the width donut, and the annulus width is a submicron order, and the gap is more little good more between the adjacent annulus, with can realize, adjacent two electrodes do not produce electric connection and are advisable;
2. prepare two circular glass substrates that are coated with nesa coating (ITO), having the transparent conducting film glass substrate to have the electrode one side evenly to be coated with the last layer photoresist with the rotation method with plastic film;
3. utilize the 1. middle mask plate of making of step, the glass substrate that scribbles photoresist is made public under the ultraviolet photolithographic machine,, on glass substrate, obtain the ITO concentric ring electrode through development, etching;
4. the concentric ring electrode on the two sheet glass substrates is aimed at, sealed with epoxy resin all around, be reserved with an osculum, constitute a cavity, cavity thickness is controlled with interval body;
5. in cavity, pour into the PDLC pre-polymer mixture, and the osculum of reserving is sealed, again liquid crystal cell is placed the even laser light field exposure down of the 514nm of Argon ion laser outgoing, process the PDLC liquid crystal cell;
6. utilize the electrode address control circuit to select the ITO concentric ring electrode of particular address to be combined into fresnel's zone plate; Each Fresnel zone ring is made up of the continuous ITO concentric ring electrode of some, and to selected electrode application voltage, the liquid crystal director direction is regulated and control by electric field in the PDLC; The liquid crystal director direction in powered electrode zone is parallel to direction of an electric field; Therefore, be Fresnel zone plate under the alive outside regulation and control of liquid crystal cell and distribute, present lens effect through diffraction;
7. utilize control circuit to change the energising round loop electrode, can obtain the Fresnel zone pattern of different focal, realize the accurate continuous vari-focus of lens segmentation focal length by the requirement of electrode address.
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| CN2012103324291A CN102799040A (en) | 2012-09-06 | 2012-09-06 | Method for preparing novel electronic control zooming polymer dispersed liquid crystal lens |
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| CN2012103324291A CN102799040A (en) | 2012-09-06 | 2012-09-06 | Method for preparing novel electronic control zooming polymer dispersed liquid crystal lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111381395A (en) * | 2020-01-21 | 2020-07-07 | 奥提赞光晶(山东)显示科技有限公司 | Electric control continuous zoom lens, preparation method and exposure system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5883814A (en) * | 1981-11-13 | 1983-05-19 | Fuji Xerox Co Ltd | Illuminating device for copying machine |
| JPS62170934A (en) * | 1986-01-24 | 1987-07-28 | Olympus Optical Co Ltd | Liquid crystal lens |
| CN1367399A (en) * | 2001-08-14 | 2002-09-04 | 中国科学院长春光学精密机械与物理研究所 | Continuous vari-focus Fresnel microlens array device |
| CN101194198A (en) * | 2005-01-21 | 2008-06-04 | 庄臣及庄臣视力保护公司 | Adaptive electro-active lens with variable focal length |
| CN101592841A (en) * | 2009-06-29 | 2009-12-02 | 上海理工大学 | A kind of optical imaging lens method for making of electrically controlled quick zooming |
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2012
- 2012-09-06 CN CN2012103324291A patent/CN102799040A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5883814A (en) * | 1981-11-13 | 1983-05-19 | Fuji Xerox Co Ltd | Illuminating device for copying machine |
| JPS62170934A (en) * | 1986-01-24 | 1987-07-28 | Olympus Optical Co Ltd | Liquid crystal lens |
| CN1367399A (en) * | 2001-08-14 | 2002-09-04 | 中国科学院长春光学精密机械与物理研究所 | Continuous vari-focus Fresnel microlens array device |
| CN101194198A (en) * | 2005-01-21 | 2008-06-04 | 庄臣及庄臣视力保护公司 | Adaptive electro-active lens with variable focal length |
| CN101592841A (en) * | 2009-06-29 | 2009-12-02 | 上海理工大学 | A kind of optical imaging lens method for making of electrically controlled quick zooming |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111381395A (en) * | 2020-01-21 | 2020-07-07 | 奥提赞光晶(山东)显示科技有限公司 | Electric control continuous zoom lens, preparation method and exposure system |
| CN111381395B (en) * | 2020-01-21 | 2023-11-28 | 奥提赞光晶(山东)显示科技有限公司 | Electric control continuous zoom lens, preparation method and exposure system |
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Application publication date: 20121128 |