CN110673360A - Manufacturing method of anti-UV 420 color-changing lens with refractive index of 1.56 - Google Patents
Manufacturing method of anti-UV 420 color-changing lens with refractive index of 1.56 Download PDFInfo
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- CN110673360A CN110673360A CN201911114176.9A CN201911114176A CN110673360A CN 110673360 A CN110673360 A CN 110673360A CN 201911114176 A CN201911114176 A CN 201911114176A CN 110673360 A CN110673360 A CN 110673360A
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
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- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
A method for manufacturing a UV 420-proof color-changing lens with the refractive index of 1.56 comprises the following components in gram: 60 plus or minus 2 grams of polyacrylic resin monomer, 34 plus or minus 1 gram of polyacrylate solution, 5 plus or minus 0.5 gram of mercury halide and 1 plus or minus 0.1 gram of 420 blue-resistant light absorber. The invention adopts polyacrylate solution, mercury halide and 420 blue-resistant light absorber as UV420 color-changing material, polyacrylic resin monomer as a body, and the body and the color-changing material are mixed to form the final lens raw material, and the color-changing lens is formed by curing and molding at the combination temperature and time. The lens of the invention has the following characteristics: 1. the visible light transmittance before color change reaches more than 92 percent; 2. the depth reaches more than 82 percent after color change; 3. the indoor blue light blocking rate reaches more than 18 percent.
Description
Technical Field
The invention relates to the field of manufacturing and processing of resin mirrors, in particular to a method for manufacturing a UV 420-proof color-changing lens with a refractive index of 1.56.
Background
The refractive index of the existing UV-proof lens on the market is generally 1.552 and above, and the index of UV resistance can only reach about 390 UV. The high refractive index causes a decrease in abbe number, and the distortion of the viewed object image becomes large and is not clear enough. The high-energy blue light with the wavelength of 380-500nm is very harmful to eyes of people who move outdoors for a long time, and the long-term and large-amount blue light irradiates retinas of the eyes, so that macular degeneration of the eyes can be caused, and finally the vision is degraded. The functional lens color changing sheet on the market can change color rapidly when being worn outdoors and receiving ultraviolet rays, and plays a role in protection. However, when the user returns to the room, the common color-changing sheet is difficult to protect eyes if the user is engaged in activities (computers and mobile phones) with large blue light radiation. Therefore, if the combination of color changing and blue light prevention can be achieved, the color changing protection is carried out outdoors, the invasion of the blue light can be effectively prevented in indoor office games, and the blue light can be realized only by carrying out corresponding configuration on lens materials.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a method for manufacturing a photochromic lens with a refractive index of 1.56 and UV420 resistance, which comprises using a polyacrylate solution, mercury halide and a 420 blue light absorber as UV420 photochromic materials, using a polyacrylic resin monomer as a main body, mixing the main body with the photochromic materials to obtain a final lens raw material, and curing and molding at a combination temperature and time to obtain the photochromic lens with the refractive index of 1.56 and UV420 resistance.
The technical scheme of the invention is realized by the following modes: a refractive index of 1.56 UV420 resistant color changing lens, which comprises the following components by gram: 60 plus or minus 2 grams of polyacrylic resin monomer, 34 plus or minus 1 gram of polyacrylate solution, 5 plus or minus 0.5 gram of mercury halide and 1 plus or minus 0.1 gram of 420 blue-resistant light absorber.
The manufacturing method of the invention comprises the following steps:
1) taking 34 +/-1 g of polyacrylate solution, stirring the polyacrylate solution in a clean glass container for 1 hour +/-5 minutes, controlling the rotating speed at 100 revolutions per minute and controlling the temperature at 30 +/-2 ℃;
2) heating the polyacrylate solution to 80 +/-5 ℃, adding 5 +/-0.5 g of mercury halide, stirring for 2 hours, and paying attention to the tightness of the container during stirring to reduce volatilization;
3) cooling the solution obtained in the step 2) to 30 +/-2 ℃, adding 1 +/-0.1 g of 420 blue-resistant light absorber, and continuously stirring at constant temperature for 1 hour to form a color-changing material mixture;
4) adding the color-changing material mixture into 60 +/-2 g of polyacrylic resin monomer, stirring for 1 hour to completely dissolve the color-changing material mixture, and filtering the mixture through a filtering system to obtain a raw material to be poured;
5) before casting, the raw material in the step 4 is vacuumized to-0.2 MP and kept for 15 minutes, the raw material is cast into a mould, and clean compressed air is used, the air pressure is 0.1 ~ 0.2.2 MPa, and no bubbles can be generated;
6) curing, namely, through a pre-designed program, a thermal curing temperature curve is as follows, wherein the thermal curing temperature curve is that the temperature is maintained at 20 ~ 25 ℃ for 8 hours, the temperature is uniformly increased to 112 ~ 115 ℃ within 2 hours, the temperature is continuously maintained for 4 hours and reduced to 20 ~ 25 ℃ within 2 hours, the curing is finished within 16 hours, and the difference between the actual temperature and the set temperature cannot be 0.5 ℃;
7) opening the mould, trimming and cleaning, namely cooling to 20 ~ 25 ℃, discharging from the furnace, separating the lens from the mould, and repairing and cleaning the appearance of the lens surface.
The solid content of the polyacrylate solution is 30 +/-1%.
According to the invention, the visible light transmittance before color change reaches more than 92%; the depth reaches more than 82 percent after color change; the indoor blue light blocking rate reaches more than 18 percent.
Detailed Description
A photochromic lens with a refractive index of 1.56 and UV prevention 420 is prepared by taking a polyacrylate solution, mercury halide and a 420 blue-resistant light absorber as a UV420 photochromic material, taking a polyacrylic resin monomer as a body, mixing the body and the photochromic material to obtain a final lens raw material, and curing and molding the final lens raw material at a combination temperature for a combination time to form the photochromic lens with the refractive index of 1.56 and UV prevention 420.
Example 1
The technical scheme of the invention is realized by the following process flow modes:
1. preparing materials: taking 1kg of total mass as an example, 600 g of polyacrylic resin monomer, 338 g of polyacrylate solution with the solid content of 30%, 53 g of mercury halide and 9 g of 420 blue-resistant light absorber are taken.
2. 338 grams of polyacrylate solution with the solid content of 30 percent is stirred in a clean glass container for 1 hour +/-5 minutes, the rotating speed is controlled to be about 100 revolutions per minute, and the temperature is 30 +/-2 ℃;
3. heating to 80 +/-5 ℃, adding 53 g of mercury halide, stirring for 2 hours, and paying attention to the tightness of the container during stirring to reduce volatilization;
4. cooling to 30 +/-2 ℃, adding 9 g of 420 g of blue-resistant absorbent, and continuously stirring for 1 hour at constant temperature until all the materials are completely fused together to form a color-changing material;
5. then adding the mixed color-changing material into 600 g of polyacrylic resin monomer prepared in advance, stirring for 1 hour to completely dissolve, and finally filtering by a filtering system to form a raw material to be poured;
6. before casting, the raw materials prepared in the step 5 are vacuumized to 0.2MP and kept for 15 minutes, and then are filled into a mold of a closed mold, and clean compressed air is used, the air pressure is 0.1 ~ 0.2.2 MPa, and no bubbles can be generated;
7. curing, namely, through a pre-designed program, the thermal curing temperature curve is that the temperature is kept at 20 ~ 25 ℃ for 8 hours, the temperature is uniformly raised to 112 ~ 115 ℃ within 2 hours, the temperature is continuously kept for 4 hours and reduced to 20 ~ 25 ℃ within 2 hours, the curing is finished within 16 hours, and the difference between the actual temperature and the set temperature cannot be 0.5 ℃;
8. opening the mold, trimming and cleaning, namely cooling to 20 ~ 25 ℃, discharging, separating the lens from the mold, and repairing and cleaning the appearance of the lens surface.
Claims (3)
1. A refractive index of 1.56 UV420 resistant color changing lens, which comprises the following components by gram: 60 plus or minus 2 grams of polyacrylic resin monomer, 34 plus or minus 1 gram of polyacrylate solution, 5 plus or minus 0.5 gram of mercury halide and 1 plus or minus 0.1 gram of 420 blue-resistant light absorber.
2. A method of manufacturing a UV420 blocking color shifting lens having a refractive index of 1.56 in grams as claimed in claim 1, comprising the steps of:
1) taking 34 +/-1 g of polyacrylate solution, stirring the polyacrylate solution in a clean glass container for 1 hour +/-5 minutes, controlling the rotating speed at 100 revolutions per minute and controlling the temperature at 30 +/-2 ℃;
2) heating the polyacrylate solution to 80 +/-5 ℃, adding 5 +/-0.5 g of mercury halide, stirring for 2 hours, and paying attention to the tightness of the container during stirring to reduce volatilization;
3) cooling the solution obtained in the step 2) to 30 +/-2 ℃, adding 1 +/-0.1 g of 420 blue-resistant light absorber, and continuously stirring at constant temperature for 1 hour to form a color-changing material mixture;
4) adding the color-changing material mixture into 60 +/-2 g of polyacrylic resin monomer, stirring for 1 hour to completely dissolve the color-changing material mixture, and filtering the mixture through a filtering system to obtain a raw material to be poured;
5) before casting, the raw material in the step 4 is vacuumized to-0.2 MP and kept for 15 minutes, the raw material is cast into a mould, and clean compressed air is used, the air pressure is 0.1 ~ 0.2.2 MPa, and no bubbles can be generated;
6) curing, namely, through a pre-designed program, a thermal curing temperature curve is as follows, wherein the thermal curing temperature curve is that the temperature is maintained at 20 ~ 25 ℃ for 8 hours, the temperature is uniformly increased to 112 ~ 115 ℃ within 2 hours, the temperature is continuously maintained for 4 hours and reduced to 20 ~ 25 ℃ within 2 hours, the curing is finished within 16 hours, and the difference between the actual temperature and the set temperature cannot be 0.5 ℃;
7) opening the mould, trimming and cleaning, namely cooling to 20 ~ 25 ℃, discharging from the furnace, separating the lens from the mould, and repairing and cleaning the appearance of the lens surface.
3. The method for manufacturing the color-changing lens with refractive index of 1.56 and UV-420 protection according to claim 2, wherein: the solid content of the polyacrylate solution in the step 1) is 30 +/-1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911114176.9A CN110673360A (en) | 2019-11-14 | 2019-11-14 | Manufacturing method of anti-UV 420 color-changing lens with refractive index of 1.56 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911114176.9A CN110673360A (en) | 2019-11-14 | 2019-11-14 | Manufacturing method of anti-UV 420 color-changing lens with refractive index of 1.56 |
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| Publication Number | Publication Date |
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| CN110673360A true CN110673360A (en) | 2020-01-10 |
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| CN201911114176.9A Pending CN110673360A (en) | 2019-11-14 | 2019-11-14 | Manufacturing method of anti-UV 420 color-changing lens with refractive index of 1.56 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838369A (en) * | 2009-03-17 | 2010-09-22 | 上海伟星光学有限公司 | Monomer composition for manufacturing chameleon glass blocks and method for preparing chameleon glass blocks |
| CN107463001A (en) * | 2017-08-18 | 2017-12-12 | 深圳先进技术研究院 | A kind of schemochrome sun contact lenses and preparation method thereof |
| CN207232560U (en) * | 2017-08-18 | 2018-04-13 | 深圳先进技术研究院 | A kind of schemochrome sun contact lenses |
| CN108456284A (en) * | 2018-04-13 | 2018-08-28 | 江苏康耐特光学有限公司 | A kind of anti-blue light resin lens and preparation method thereof |
-
2019
- 2019-11-14 CN CN201911114176.9A patent/CN110673360A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838369A (en) * | 2009-03-17 | 2010-09-22 | 上海伟星光学有限公司 | Monomer composition for manufacturing chameleon glass blocks and method for preparing chameleon glass blocks |
| CN107463001A (en) * | 2017-08-18 | 2017-12-12 | 深圳先进技术研究院 | A kind of schemochrome sun contact lenses and preparation method thereof |
| CN207232560U (en) * | 2017-08-18 | 2018-04-13 | 深圳先进技术研究院 | A kind of schemochrome sun contact lenses |
| CN108456284A (en) * | 2018-04-13 | 2018-08-28 | 江苏康耐特光学有限公司 | A kind of anti-blue light resin lens and preparation method thereof |
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Application publication date: 20200110 |