CN104827671A - 3D contact lens printing method - Google Patents
3D contact lens printing method Download PDFInfo
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- CN104827671A CN104827671A CN201510255728.3A CN201510255728A CN104827671A CN 104827671 A CN104827671 A CN 104827671A CN 201510255728 A CN201510255728 A CN 201510255728A CN 104827671 A CN104827671 A CN 104827671A
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Abstract
The invention relates to a 3D contact lens printing method which comprises the following steps: S1, establishing a personal eyeball model of a wearer by using a 3D data scanner; S2, performing 3D modeling on eyeball model data in the step S1 by using a computer; S3, setting the printing conditions and requirements; S4, establishing connection between the computer and a printer; S5, preparing printing materials, and adding the printing materials and a photoinitiator into the 3D printer; S6, controlling preparation of contact lenses by using the 3D printer; S7, performing freeze molding, namely immediately performing cold trap freeze molding on a printed cured product; and S8, performing subsequent treatment, namely polishing the surface of the molded contact lens product, grinding and deburring. The method disclosed by the invention has the advantages that the contact lenses suitable for each person can be personalized, and multiple conditions such as degree of myopia, astigmatism degree, and radian, hardness, toughness, wettability and transparency of the lenses can be customized according to the requirements.
Description
Technical field
The present invention relates to 3D and print contact lens technique field, specifically, is a kind of method that 3D prints contact lenses.
Background technology
3D printing technique is the emerging technology starting the eighties in 20th century to develop rapidly in manufacture field, refer under the control of the computer, according to the data such as Computer Aided Design Model or computed tomography of object, piled up by the accurate 3D of material, the novel digital forming technique of any complicated 3D object of quick Fabrication.Its know-why is " Layered manufacturing successively superposes ".
The 3D printing technique that current application is more, mainly contains photocuring stereosopic printing, fused glass pellet, selective laser sintering and three-dimensional spray printing etc.Because 3D printing technique development is in recent years rapid, its application is more and more extensive, includes: all conglomeraties such as industry manufacture, architectural engineering, Aero-Space, defence and military, biologic medical, education and scientific research, cultural creative, digital entertainment.
In recent years, the whole world is just being risen and is being taken turns Digitized manufacturing tide.Proposing 3D printing technique is the key technology realizing Digitized manufacturing, helps to improve output.Although 3D printing technique is still at an early stage of development, in product design, complexity and specialities production, personalized service etc., show the advantage of its uniqueness.
Along with the increase day by day of study and work pressure, global bathomorphic patient gets more and more.And modern is for consideration attractive in appearance, is no longer inclined to lenses fitted glasses, the substitute is contact lens, contact lenses have been an indispensable part in a lot of people life.Contact lenses have attractive in appearance, the various features such as fashion, convenience because of it, on market, occupy increasing share.
But the most unified specification of existing contact lenses, mass production, can not meet individual demand.In actual life, because the environment of everyone residing life, work, study is different, the situations such as its myopia, astigmatism, eyeball surface radian are not identical, and what the contact lenses wearing commercially available unified specification not only may be unfavorable for eyes looks principle condition, also likely increases the weight of its myopic degree.
In addition, due to everyone in daily life residing for life, work, academic environment completely different, the light intensity that eyes accept is also different, wears the impact that contact lenses can not adjust residing varying environment, different light rays causes for eyes of unified specification.
In addition, modern's contact lens is except near-sighted reason, and attractive in appearance, the fashion that also have quite a few crowd to be in U.S. pupil need to wear.But everyone has oneself for understanding that is beautiful, fashion, and commercially available U.S. pupil contact lenses can not meet the demand of all wearers.
Moreover existing production of contact lenses mainly comprises following three kinds, 1, centrifugal casting; 2, die pressing; 3, turning method.The contact lenses of its said method cannot meet individual demand and personalized customization.
In sum, need a kind of 3D badly and print the method for contact lenses, the method that this kind of 3D prints contact lenses can be applicable to the contact lenses of own situation for individual demand, personalized customization.And yet there are no report about the method for this 3D printing contact lenses.
Summary of the invention
The object of the invention is for deficiency of the prior art, provide a kind of 3D to print the method for contact lenses, the method that this kind of 3D prints contact lenses can be applicable to the contact lenses of own situation for individual demand, personalized customization.
For achieving the above object, the technical scheme that the present invention takes is:
3D prints a method for contact lenses, comprises the following steps: step S1,3D data scanner sets up the individual eyeball phantom of wearer, is scanned by 3D data scanner and other medical measurement instrument thereof to patient's eyeball, obtains eyeball phantom data; Eyeball phantom data in step S1 are carried out three-dimensional modeling by computer by step S2, are stored in a computer by the threedimensional model of the 3D contact lenses that print; Step S3, print conditions sets, according to myopia degree, astigmatism, light transmittance, the radian of the eyeball phantom data setting eyeglass of step S1 with requirement; Step S4, computer and printer connect, the hoistable platform of the machine that computer control 3D is printed; Step S5, the preparation of printed material, joins printed material and light trigger in 3D printer; Step S6,3D printer controls the preparation of contact lenses; Step S7, freeze forming, adopts cold-trap freeze forming immediately by the cured article printed; Step S8, subsequent treatment: the process of polishing grinding flash removed is carried out to shaping contact lens products surface.
Eyeball phantom data in described step S1 comprise corneal diameter, radius of curvature, the base arc of eyeball.
Printed material in described step S5 is according to methacrylate: the mass ratio of volumn concentration 70% poly hydroxy ethyl acrylate=3:8-11, methacrylate being added temperature is heated at constant temperature 2h hour in the 70% poly hydroxy ethyl acrylate aqueous solution of 90 DEG C, obtain liquid hydrogel, then be that 4:1 or 8:1 mixes mixture by this liquid hydrogel and GDMA volume ratio.
Use 3D scanner to scan in described step S6, employing wavelength is 350mm, Ultra-Violet Laser that beam quality is M1.0-1.3 carries out point by point scanning to printed material.
The invention has the advantages that:
1, a kind of 3D of the present invention prints the method for contact lenses, can the personalized customized contact lenses being applicable to each individuality, the multinomial condition such as radian, hardness, toughness, wettability, light transmittance of myopia degree, astigmatism degree, eyeglass can customize according to demand;
2,3D print contact lenses can using light intensity as a customization condition, be daily type by printed contact lenses, be applicable to routine work study, outdoor type, eyeglass can antiultraviolet, is applicable to out on tours;
3, the chance of the U.S. pupil of wearer's designed, designed can be given, according to oneself for the understanding with fashion attractive in appearance, select the every content such as color, texture designing eyeglass;
4,3D scanner adopts multi-point scanning, and multimetering, forms thousands of mesh points, measures actual average material level more accurately.
Detailed description of the invention
Embodiment 1
3D prints a method for contact lenses, comprises the following steps:
Step S1,3D data scanner sets up the individual eyeball phantom of wearer; By 3D data scanner and other medical measurement instrument thereof, patient's eyeball is scanned, obtain eyeball phantom data.Its eyeball phantom data comprise corneal diameter, radius of curvature, the base arc of eyeball.Described base arc refers to the radian of eyeball, and base arc is larger, and eyeball is more smooth, and base arc is less, and the sphere of eyeball is more curved.
Eyeball phantom data in step S1 are carried out three-dimensional modeling by computer by step S2, are stored in a computer by the threedimensional model of the 3D contact lenses that print;
Step S3, print conditions sets, according to myopia degree, astigmatism, light transmittance, the radian of the eyeball phantom data setting eyeglass of step S1 with requirement;
Step S4, computer and printer connect, the hoistable platform of the machine that computer control 3D is printed;
Step S5, the preparation of printed material, according to methacrylate: the mass ratio of 70% (volumn concentration) poly hydroxy ethyl acrylate=3:8-11, methacrylate being added temperature is heated at constant temperature 2h hour in the 70% poly hydroxy ethyl acrylate aqueous solution of 90 DEG C, obtain liquid hydrogel, be that 4:1 or 8:1 mixes by this liquid hydrogel and GDMA volume ratio again, obtain liquid printed material, its material can determine colour of lens, texture, hardness, toughness, wettability, finally this liquid printed material or light trigger are added in 3D printer in the lump, wherein, it is 1-5% that the addition of light trigger accounts for the two mass percent adding total amount, light trigger can assist the contact lenses of preparation different light rays intensity, specifically comprises daily type contact lenses and outdoor type contact lenses, and its outdoor type glasses can antiultraviolet, is applicable to out on tours.
Step S6,3D printer controls the preparation of contact lenses, first by computer, the materials'use 3D scanner in step S4 is scanned, the Ultra-Violet Laser that employing wavelength is 350mm, beam quality is M1.0-1.3 carries out point by point scanning to printed material, make printed material by putting line, being solidified to face order by line, controlled the movement of hoistable platform simultaneously by computer, liquid printed material is successively solidified, obtains cured article.
Wherein, 3D scanner is made up of three transmitting antennas, signal driving, electronic circuit three parts.The inner low-frequency pulse producing 3-10KHz, through overdriving, by the Array transfer low-frequency pulse that three antennas are formed, the pulse of launching reaches thousands of point, each pulse has good directionality, the pulse of thousands of point scans material face, and the pulse echo that in receiving vessel, material returns, by the accurate timing of meter electronics circuit and timer, the each echo of accurate measurement time/distance, the digital signal processor of equipment carries out sampling and analyzing to the signal received, thus the height of the thing position of measuring, volume and quality.Got up by the data assemblies of a kind of special algorithm self-scanning in the future device, and present the actual distribution situation of container contents by 3D mode, imaging on the computer screen.
Step S7, freeze forming, adopts cold-trap freeze forming immediately by the cured article printed.
Step S8, subsequent treatment: the process of polishing grinding flash removed is carried out to shaping contact lens products surface.
A kind of 3D of the present invention prints the method for contact lenses, can the personalized customized contact lenses being applicable to each individuality, the multinomial condition such as radian, hardness, toughness, wettability, light transmittance of myopia degree, astigmatism degree, eyeglass can customize according to demand; 3D prints contact lenses can using light intensity as a customization condition, and be daily type by printed contact lenses, be applicable to routine work study, outdoor type, eyeglass can antiultraviolet, is applicable to out on tours; The chance of the U.S. pupil of wearer's designed, designed can be given, according to oneself for the understanding with fashion attractive in appearance, select the every content such as color, texture designing eyeglass; 3D scanner adopts multi-point scanning, and multimetering, forms thousands of mesh points, measures actual average material level more accurately.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the inventive method; can also make some improvement and supplement, these improve and supplement and also should be considered as protection scope of the present invention.
Claims (4)
1. the method for 3D printing contact lenses, it is characterized in that, comprise the following steps: step S1,3D data scanner sets up the individual eyeball phantom of wearer, by 3D data scanner and other medical measurement instrument thereof, patient's eyeball is scanned, obtain eyeball phantom data; Eyeball phantom data in step S1 are carried out three-dimensional modeling by computer by step S2, are stored in a computer by the threedimensional model of the 3D contact lenses that print; Step S3, print conditions sets, according to myopia degree, astigmatism, light transmittance, the radian of the eyeball phantom data setting eyeglass of step S1 with requirement; Step S4, computer and printer connect, the hoistable platform of the machine that computer control 3D is printed; Step S5, the preparation of printed material, joins printed material and light trigger in 3D printer; Step S6,3D printer controls the preparation of contact lenses; Step S7, freeze forming, adopts cold-trap freeze forming immediately by the cured article printed; Step S8, subsequent treatment: the process of polishing grinding flash removed is carried out to shaping contact lens products surface.
2. 3D according to claim 1 prints the method for contact lenses, and it is characterized in that, the eyeball phantom data in described step S1 comprise corneal diameter, radius of curvature, the base arc of eyeball.
3. 3D according to claim 1 prints the method for contact lenses, it is characterized in that, printed material in described step S5 is according to methacrylate: the mass ratio of volumn concentration 70% poly hydroxy ethyl acrylate=3:8-11, methacrylate being added temperature is heated at constant temperature 2h hour in the 70% poly hydroxy ethyl acrylate aqueous solution of 90 DEG C, obtain liquid hydrogel, then be that 4:1 or 8:1 mixes mixture by this liquid hydrogel and GDMA volume ratio.
4. 3D according to claim 1 prints the method for contact lenses, it is characterized in that, uses 3D scanner to scan in described step S6, employing wavelength is 350mm, Ultra-Violet Laser that beam quality is M1.0-1.3 carries out point by point scanning to printed material.
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| CN201510255728.3A CN104827671A (en) | 2015-05-19 | 2015-05-19 | 3D contact lens printing method |
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| CN201510255728.3A CN104827671A (en) | 2015-05-19 | 2015-05-19 | 3D contact lens printing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997303A (en) * | 2016-05-11 | 2016-10-12 | 张斌 | 3DP customized bionic lenses as well as preparation method and device thereof |
| CN107020752A (en) * | 2017-06-13 | 2017-08-08 | 成都智创华信科技有限公司 | A kind of method of 3D printing mobile phone shell decoration |
| CN107081912A (en) * | 2017-06-13 | 2017-08-22 | 成都智创华信科技有限公司 | A kind of method of 3D printing mobile phone shell decoration |
| CN107187019A (en) * | 2017-06-13 | 2017-09-22 | 成都智创华信科技有限公司 | A kind of method of 3D printing clothes hanger |
-
2015
- 2015-05-19 CN CN201510255728.3A patent/CN104827671A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997303A (en) * | 2016-05-11 | 2016-10-12 | 张斌 | 3DP customized bionic lenses as well as preparation method and device thereof |
| CN107020752A (en) * | 2017-06-13 | 2017-08-08 | 成都智创华信科技有限公司 | A kind of method of 3D printing mobile phone shell decoration |
| CN107081912A (en) * | 2017-06-13 | 2017-08-22 | 成都智创华信科技有限公司 | A kind of method of 3D printing mobile phone shell decoration |
| CN107187019A (en) * | 2017-06-13 | 2017-09-22 | 成都智创华信科技有限公司 | A kind of method of 3D printing clothes hanger |
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Application publication date: 20150812 |
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