CN103605215A - One-dimensional photonic crystal-based colorful contact lenses and preparation method thereof - Google Patents
One-dimensional photonic crystal-based colorful contact lenses and preparation method thereof Download PDFInfo
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- CN103605215A CN103605215A CN201310500717.8A CN201310500717A CN103605215A CN 103605215 A CN103605215 A CN 103605215A CN 201310500717 A CN201310500717 A CN 201310500717A CN 103605215 A CN103605215 A CN 103605215A
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Abstract
The invention discloses one-dimensional photonic crystal-based colorful contact lenses. The iris region of the colorful contact lenses possesses a one-dimensional photonic crystal structure capable of enabling the colorful contact lenses to show multiple colors. The invention also discloses a preparation method of the colorful contact lenses. The main steps comprises: preparing a medium-containing hydrogel polymer precursor solution, alternatively repeating adding the hydrogel polymer precursor solution dropwiseinto the iris region of a contact lenses mold and drying, to form the one-dimensional photonic crystal structure, adding a contact lenses raw material into the pupil region of the contact lenses mold, solidifying and demolding to prepare the colorful contact lenses. Physical coloring is used, and the brilliant structural color of the one-dimensional photonic crystal is utilized for realizing coloring of the eyeglasses of the colorful contact lenses, the eyeglasses are improved in color stability, biological compatibility and security, and the colorful contact lenses are relatively safe to wear and have extremely good practicability and wide market prospect.
Description
Technical field
The present invention relates to contact lenses field, particularly relate to a kind of colorful contact lens and preparation method thereof.
Background technology
Along with social development, colorful contact lens becomes more and more popular, and is especially subject to youthful pursuing, and has wide market outlook and practical value.
But colorful contact lens safety problem at present is on the market comparatively serious, there is " recalling door " event and caused social concern in a lot of colorful contact lens.The main cause of its harm is that the preparation of traditional eyeglass be unable to do without uvea, and the uveal exchange that can hinder eyes and extraneous oxygen, hydrone with bio-toxicity has reduced the oxygen permeability of eyeglass, moisture retention.Uvea easily comes off and makes the poor stability of eyeglass color simultaneously.Affect eyeglass and also can bring harm to human eye health time attractive in appearance.This eyeglass of long periods of wear, eyeball can in anoxic dry and astringent state, easily cause the complication such as corneal infection, conjunctivitis, ulcer of the cornea, serious even loses the sight of both eyes.
The a series of harm that bring to human eye in order to evade pigment, meet consumer and require phychology attractive in appearance to guarantee the security of eyeglass simultaneously, therefore need a kind of novel colorful contact lens safe, attractive in appearance.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of colorful contact lens based on 1-D photon crystal and preparation method thereof, evade a series of safety problems of using uvea to bring in quality step in prior art, greatly improved security and the color stability of colorful contact lens.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is:
A kind of colorful contact lens based on 1-D photon crystal is provided, and the iris district tool of described colorful contact lens makes described colorful contact lens eyeglass be the 1-D photon crystal structure of multiple color.
In a preferred embodiment of the present invention, described 1-D photon crystal structure by one or more hydrogels before aggressiveness solution in the iris district of contact lens molds, drip successively and dry, stacking forming so repeatedly, in described 1-D photon crystal structure the thickness of stacking structural sheet be 10 nanometers between 200 nanometers, the number of plies is between 5 to 500 layers.
In a preferred embodiment of the present invention, before described hydrogel, aggressiveness solution is formulated by medium and solvent, the kind of described medium is one or more, the refractive index of different types of described medium is different, aggressiveness solution before every kind of described medium is hybridly prepared into respectively different described hydrogels from described solvent.
In a preferred embodiment of the present invention, described medium comprises that polystyrene-b-gathers divinyl pyridine block thing, polylactic acid-polyglycol block thing, epoxypropane di-block copolymer, polyoxyethylene-polyesterification carboxyl spiro-pyrans amphipathic nature block polymer, silicon dioxide or titania, and the solvent of preparing the front aggressiveness solution of described hydrogel comprises ethanol, toluene, acetone or distilled water.
Lesser ring of Merkel at the contact lens molds of a preferred embodiment of the present invention Zhong， iris district tool 1-D photon crystal adds the former material of contact lenses, and curing and demolding obtains the colorful contact lens of tool 1-D photon crystal structure.
For solving the problems of the technologies described above, another technical solution used in the present invention is:
The preparation method that a kind of colorful contact lens based on 1-D photon crystal is provided, comprises the following steps:
(1) selection of contact lens molds:
Select contact lens molds as the base material of preparing colorful contact lens;
(2) preparation of aggressiveness solution before hydrogel:
Select one or more media, the refractive index of different types of described medium is different, aggressiveness solution before every kind of medium is mixed with to different hydrogels from solvent respectively, the size of described medium is in 5 nanometers between 300 nanometers, and before described hydrogel, the mass volume ratio concentration of aggressiveness solution is between 2%-80%;
(3) preparation in the iris district of colorful contact lens:
To in the iris district of the contact lens molds that before one or more hydrogels of preparation in step (2), aggressiveness solution is selected in step (1), alternately drip and dry successively, repeated multiple times, in the 1-D photon crystal structure of contact lens molds surface formation stacked in multi-layers;
(4) colorful contact lens eyeglass solidifies:
In the lesser ring of Merkel of the contact lens molds of the tool 1-D photon crystal structure obtaining in step (3), add the former material of contact lenses, after reaction, the demoulding acquires the colorful contact lens eyeglass that iris district has bright-coloured schemochrome.
In a preferred embodiment of the present invention, described medium comprises that polystyrene-b-gathers divinyl pyridine block thing, polylactic acid-polyglycol block thing, epoxypropane di-block copolymer, polyoxyethylene-polyesterification carboxyl spiro-pyrans amphipathic nature block polymer, silicon dioxide or titania, and the solvent of preparing the front aggressiveness solution of described hydrogel comprises ethanol, toluene, acetone or distilled water.
In a preferred embodiment of the present invention, the color in the iris district of described colorful contact lens is decided by molecular weight or the medium assembling number of plies of medium, the thickness of the dielectric layer that described media pack is dressed up be 10 nanometers between 200 nanometers, the number of plies is between 5 to 500 layers.
In a preferred embodiment of the present invention, the colored region in the iris district of described colorful contact lens and the pattern in described colored region obtain by spin coating or mould.
In a preferred embodiment of the present invention, in step (4), also need to carry out afterwards the hydration process of colorful contact lens eyeglass: first aquation 24 hours in ultrapure water, then aquation to the expansivity of described colorful contact lens eyeglass no longer changes in physiological saline.
The invention has the beneficial effects as follows: the present invention is based on colorful contact lens of 1-D photon crystal and preparation method thereof, a kind of preparation method of brand-new colorful contact lens has been proposed, changed the chemical color production theory of traditional colorful contact lens, a series of safety problems that chemical pigment layer brings have been evaded, the present invention uses physics quality, utilize the bright-coloured schemochrome of 1-D photon crystal to realize the quality of colorful contact lens eyeglass, improved the color stability of eyeglass, biocompatibility and security, wear safer, there are good practicality and wide market outlook.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of the present invention;
Fig. 2 is the structural representation of 1-D photon crystal structure in Fig. 1;
In accompanying drawing, the mark of each parts is as follows: the 1-D photon crystal structure in 11Wei iris district, and 12 is lesser ring of Merkel, 13 is colorful contact lens body.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
the preparation of the colorful contact lens of embodiment 1 based on 1-D photon crystal:
(1) selection of contact lens molds:
Select the contact lens molds that can buy on the market as the base material of preparing colorful contact lens;
(2) preparation of aggressiveness solution before colorful contact lens hydrogel:
Selection has different refractivity two media, and the size of medium is in 5 nanometers between 300 nanometers, and before the hydrogel being mixed with, the mass volume ratio concentration of aggressiveness solution is between 2%-80%;
(3) preparation in the iris district of colorful contact lens:
Aggressiveness solution before the hydrogel of preparation in step (2) is alternately dripped to the iris district of the contact lens molds of selecting in step (1) successively, repeatedly drip repeatedly, on the surface of contact lens molds, form the 1-D photon crystal structure of stacked in multi-layers, wherein the thickness of every layer of dielectric layer be 10 nanometers between 200 nanometers, the number of plies is between 5 to 50 layers;
(4) colorful contact lens eyeglass solidifies:
The raw material HEMA solution of contact lenses is dripped on contact lens molds, carrying out ultraviolet ray irradiates or thermal polymerization, by the colorful contact lens eyeglass of making after mould is peeled off in ultrapure water aquation 48 hours, in physiological saline, aquation to expansivity no longer changes again, has obtained the colorful contact lens based on 1-D photon crystal.
embodiment 2 prepares structural-color contact lens with the method for self assembly layer by layer:
(1) selection and the preparation of aggressiveness solution before colorful contact lens hydrogel:
Selection has different refractivity two media, and the size of dielectric material is in 5 nanometers between 300 nanometers, and before the hydrogel being mixed with, the mass volume ratio concentration of aggressiveness solution is between 2%-80%;
(2) preparation in the iris district of colorful contact lens eyeglass:
Aggressiveness solution before the colorful contact lens hydrogel obtaining in step (1) is coated in successively to the iris district of contact lens molds, under the state of nitrification, dries, by the method for self assembly layer by layer, prepare the iris district with 1-D photon crystal structure;
(3) the curing aquation of colorful contact lens eyeglass:
After the lesser ring of Merkel of contact lens is completed with HEMA solution polymerization, in ultrapure water, aquation is 48 hours, then in physiological saline aquation to eyeglass just the expansivity of sheet no longer change, obtained the colorful contact lens based on 1-D photon crystal.
the performance test of the colorful contact lens of embodiment 3 based on 1-D photon crystal:
(1) light transmission test:
Selecting the schemochrome colorful contact lens based on 1-D photon crystal is tested object, and light transmission test is carried out in its lesser ring of Merkel, and result shows that the transmittance of white light is more than 94%;
(2) water cut test:
After contact lens material water suction is saturated, moisture accounts for 40%-64% of general assembly (TW), and eyeglass belongs to middle and high moisture eyeglass.
(3) center of lens thickness measuring:
Choose center of lens lesser ring of Merkel, measuring its thickness is 0.05-0.06mm, and this result shows that eyeglass belongs to medium standard form eyeglass.
(4) cytotoxicity of eyeglass test:
This test has adopted ISO9363-1 method, observes the security performance of eyeglass by investigating the cytotoxicity of these contact lenses.Test result is 0 grade of cell-cytotoxic reaction, i.e. the minimum grade of progression has illustrated the nontoxicity of eyeglass.Compare with common colourless contact lenses of business-like Hydron, cytotoxicity test result is the same.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. the colorful contact lens based on 1-D photon crystal, is characterized in that, the iris district tool of described colorful contact lens makes described colorful contact lens eyeglass be the 1-D photon crystal structure of multiple color.
2. the colorful contact lens based on 1-D photon crystal according to claim 1, it is characterized in that, described 1-D photon crystal structure by one or more hydrogels before aggressiveness solution in the iris district of contact lens molds, drip successively and dry, stacking forming so repeatedly, in described 1-D photon crystal structure the thickness of stacking structural sheet be 10 nanometers between 200 nanometers, the number of plies is between 5 to 500 layers.
3. the colorful contact lens based on 1-D photon crystal according to claim 1, it is characterized in that, before described hydrogel, aggressiveness solution is formulated by medium and solvent, the kind of described medium comprises one or more, the refractive index of different types of described medium is different, aggressiveness solution before every kind of described medium is hybridly prepared into respectively different described hydrogels from described solvent.
4. the colorful contact lens based on 1-D photon crystal according to claim 1, it is characterized in that, described medium is the poly-divinyl pyridine block thing of polystyrene-b-, polylactic acid-polyglycol block thing, epoxypropane di-block copolymer, polyoxyethylene-polyesterification carboxyl spiro-pyrans amphipathic nature block polymer, silicon dioxide or titania, and the solvent of preparing the front aggressiveness solution of described hydrogel is ethanol, toluene, acetone or distilled water.
5. the colorful contact lens based on 1-D photon crystal according to claim 1, it is characterized in that, lesser ring of Merkel at the contact lens molds of iris district tool 1-D photon crystal adds the former material of contact lenses, and curing and demolding obtains the colorful contact lens of tool 1-D photon crystal structure.
6. a preparation method for the colorful contact lens based on 1-D photon crystal, is characterized in that, comprises the following steps:
(1) selection of contact lens molds:
Select contact lens molds as the base material of preparing colorful contact lens;
(2) preparation of aggressiveness solution before hydrogel:
Select one or more media, the refractive index of different types of described medium is different, aggressiveness solution before every kind of medium is mixed with to different hydrogels from solvent respectively, the size of described medium is in 5 nanometers between 300 nanometers, and before described hydrogel, the mass volume ratio concentration of aggressiveness solution is between 2%-80%;
(3) preparation in the iris district of colorful contact lens:
To in the iris district of the contact lens molds that before one or more hydrogels of preparation in step (2), aggressiveness solution is selected in step (1), alternately drip and dry successively, repeated multiple times, in the 1-D photon crystal structure of contact lens molds surface formation stacked in multi-layers;
(4) colorful contact lens eyeglass solidifies:
In the lesser ring of Merkel of the contact lens molds of the tool 1-D photon crystal structure obtaining in step (3), add the former material of contact lenses, after reaction, the demoulding acquires the colorful contact lens eyeglass that iris district has bright-coloured schemochrome.
7. the preparation method of the colorful contact lens based on 1-D photon crystal according to claim 6, it is characterized in that, described medium is the poly-divinyl pyridine block thing of polystyrene-b-, polylactic acid-polyglycol block thing, epoxypropane di-block copolymer, polyoxyethylene-polyesterification carboxyl spiro-pyrans amphipathic nature block polymer, silicon dioxide or titania, and the solvent of preparing the front aggressiveness solution of described hydrogel is ethanol, toluene, acetone or distilled water.
8. the preparation method of the colorful contact lens based on 1-D photon crystal according to claim 6, it is characterized in that, the color in the iris district of described colorful contact lens is decided by molecular weight or the medium assembling number of plies of medium, the thickness of the dielectric layer that described media pack is dressed up be 10 nanometers between 200 nanometers, the number of plies is between 5 to 500 layers.
9. the preparation method of the colorful contact lens based on 1-D photon crystal according to claim 6, is characterized in that, the colored region in the iris district of described colorful contact lens and the pattern in described colored region obtain by spin coating or mould.
10. the preparation method of the colorful contact lens based on 1-D photon crystal according to claim 6, it is characterized in that, in step (4), also need to carry out afterwards the hydration process of colorful contact lens eyeglass: first aquation 24 hours in ultrapure water, then aquation to the expansivity of described colorful contact lens eyeglass no longer changes in physiological saline.
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Cited By (9)
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| CN103937025A (en) * | 2014-03-28 | 2014-07-23 | 中国科学院深圳先进技术研究院 | Therapeutic agent-containing contact lenses and preparation method thereof |
| CN106443838A (en) * | 2016-08-22 | 2017-02-22 | 东莞市中图半导体科技有限公司 | Sapphire camera lens and manufacturing method thereof |
| WO2017028551A1 (en) * | 2015-08-19 | 2017-02-23 | 中国科学院深圳先进技术研究院 | Contact lens having photonic crystal structure and manufacturing method thereof |
| JP2020052390A (en) * | 2018-09-21 | 2020-04-02 | ナム ギ ミン | Pigment-free color contact lens with micro-pattern having photonic crystal structures |
| US11042044B2 (en) | 2017-03-17 | 2021-06-22 | Imam Abdulrahman Bin Faisal University | Contact lens containing a photonic crystal |
| CN113419357A (en) * | 2021-07-07 | 2021-09-21 | 武汉东持科技有限公司 | Preparation method of full-color-separation colored contact lens |
| CN113730028A (en) * | 2021-09-06 | 2021-12-03 | 南京邮电大学 | Artificial intelligence skin and preparation method and application thereof |
| CN114839797A (en) * | 2022-04-11 | 2022-08-02 | 深圳先进技术研究院 | Contact lenses with variable structural colors and methods of making the same |
| CN114839798A (en) * | 2022-04-11 | 2022-08-02 | 深圳先进技术研究院 | Structural color contact lens based on thin film photonic crystal and preparation method thereof |
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Cited By (10)
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| CN103937025A (en) * | 2014-03-28 | 2014-07-23 | 中国科学院深圳先进技术研究院 | Therapeutic agent-containing contact lenses and preparation method thereof |
| WO2017028551A1 (en) * | 2015-08-19 | 2017-02-23 | 中国科学院深圳先进技术研究院 | Contact lens having photonic crystal structure and manufacturing method thereof |
| CN106443838A (en) * | 2016-08-22 | 2017-02-22 | 东莞市中图半导体科技有限公司 | Sapphire camera lens and manufacturing method thereof |
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| CN114839797A (en) * | 2022-04-11 | 2022-08-02 | 深圳先进技术研究院 | Contact lenses with variable structural colors and methods of making the same |
| CN114839798A (en) * | 2022-04-11 | 2022-08-02 | 深圳先进技术研究院 | Structural color contact lens based on thin film photonic crystal and preparation method thereof |
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