CN117089186A - Method for preparing resin lens - Google Patents
Method for preparing resin lens Download PDFInfo
- Publication number
- CN117089186A CN117089186A CN202210507389.3A CN202210507389A CN117089186A CN 117089186 A CN117089186 A CN 117089186A CN 202210507389 A CN202210507389 A CN 202210507389A CN 117089186 A CN117089186 A CN 117089186A
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- CN
- China
- Prior art keywords
- lens
- toner
- resin lens
- blue light
- blue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000011347 resin Substances 0.000 title claims abstract description 35
- 229920005989 resin Polymers 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 11
- 239000002245 particle Substances 0.000 claims abstract description 14
- 238000001746 injection moulding Methods 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 11
- 230000002745 absorbent Effects 0.000 claims abstract description 8
- 239000002250 absorbent Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims description 5
- 239000003599 detergent Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 8
- 238000002834 transmittance Methods 0.000 description 15
- 210000001525 retina Anatomy 0.000 description 3
- 208000035719 Maculopathy Diseases 0.000 description 2
- 230000030833 cell death Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000002780 macular degeneration Diseases 0.000 description 2
- 210000000844 retinal pigment epithelial cell Anatomy 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Abstract
The invention relates to a preparation method of a resin lens, which comprises the steps of firstly drying PC plastic particles, adding a blue light absorbent, red toner, blue toner and orange toner into the dried plastic particles, wherein the addition amount of each component is that 0.055g of the blue light absorbent, 0.31g of the red toner, 0.03g of the blue toner and 0.118g of the orange toner are added into every 10kg of the PC plastic particles, stirring uniformly, then adding an injection molding machine to inject and mold a lens primary blank, and finally carrying out surface cleaning, hardening and drying on the lens primary blank to obtain the resin lens capable of blocking a large amount of blue light and green light and obviously improving yellow and red contrast.
Description
Technical Field
The invention relates to a preparation method of a resin lens, in particular to a preparation method of a resin lens which can block a large amount of blue light and green light and obviously improve the contrast ratio of yellow to red after molding.
Background
Ultraviolet light with a wavelength below 290nm is mostly blocked by the ozone layer, while most of ultraviolet light B (280-315 nm) and ultraviolet light A (315-400 nm) are blocked by the crystal (yellowish), but a very small amount of ultraviolet light A, B reaches the retina and causes damage to the eye, such as retinal pigment epithelial cell death and maculopathy; in addition, although the lens absorbs part of the blue light in the visible light, a large amount of blue light still reaches the retina, and in particular, blue light having a wavelength of 415 to 445nm in the visible light is a main cause of damage to the retina of the eye, which may cause retinal pigment epithelial cell death and maculopathy.
Disclosure of Invention
The invention mainly aims to provide a preparation method of a resin lens, which is mainly characterized in that a blue light absorber, red toner, blue toner and orange toner are added into PC plastic particles which are main components of the resin lens; the formed lens can block blue light and green light and obviously improve the contrast ratio of yellow and red.
The aim and the effect of the invention are realized by the following technologies:
a method for preparing a resin lens, comprising the steps of:
step 1: drying the PC plastic particles at 115 ℃ for 2 hours;
step 2: adding a blue light absorbent, red toner, blue toner and orange toner into the dried PC plastic particles, and uniformly stirring to form injection molding raw materials; wherein, the addition amount of each component is that 0.055g of blue light absorbent, 0.31g of red toner, 0.03g of blue toner and 0.118g of orange toner are added into each 10kg of PC plastic particles;
step 3: adding injection molding raw materials into an injection molding machine to perform injection molding on a lens primary blank;
step 4: cleaning the surface of the lens primary blank;
step 5: performing surface hardening treatment on the lens blank after the cleaning process is completed;
step 6: further drying the lens primary blank subjected to surface hardening treatment;
step 7: the resin lens which can block part of blue light and green light and obviously improve the contrast ratio of yellow and red is obtained after the primary lens blank is dried; wherein, the minimum transmittance of the resin lens for 475nm-650nm wave band light is 31.63%, the transmittance for 280nm-315nm wave band light is 0%, the transmittance for 315nm-380nm wave band light is 0%, and the transmittance for 380nm-500nm wave band light is 20.78%.
The method for producing a resin lens as described above, wherein the surface cleaning in step 4 is performed by alternately cleaning with pure water to which a detergent is added and pure water in order by ultrasonic vibration, and the temperature is set at 45 to 68 ℃.
The preparation method of the resin lens, wherein the hardening treatment in the step 5 is to leach the primary lens blank with strengthening liquid, the liquid temperature of the strengthening liquid is controlled to be 18-22 ℃ for 1-3 minutes, and then the pre-drying is carried out, and the temperature is 60-85 ℃.
The preparation method of the resin lens, wherein the drying temperature in the step 6 is 95-120 ℃.
The invention has the advantages that:
according to the resin lens, through the proportion of the components and the full stirring, the blue light absorbent, the red toner, the blue toner and the orange toner are uniformly mixed with the PC plastic particles, so that the average blocking rate of blue light and green light in 380-500 nm wave bands can be 80% after the lens is molded, the purposes of resisting the blue light and the green light are achieved, and eyes are well protected; in addition, the contrast between yellow and red of the molded resin lens finished product is obviously improved by adding red toner, blue toner and orange toner.
Drawings
FIG. 1 is a flow chart of a method for preparing a resin lens according to the present invention;
FIG. 2 is a graph of transmittance of a resin lens of the present invention;
FIG. 3 is a color space chromaticity diagram of a resin lens of the present invention.
Detailed Description
For a more complete and clear disclosure of the present invention, and for its technical content, objects, and advantages, reference should now be made to the following detailed description, taken in conjunction with the accompanying drawings and figures;
fig. 1 is a flowchart of a method for preparing a resin lens according to the present invention.
The preparation method of the resin lens comprises the following steps:
step 1: drying the PC plastic particles at 115 ℃ for 2 hours;
step 2: adding a blue light absorbent, red toner, blue toner and orange toner into the dried PC plastic particles, and uniformly stirring to form injection molding raw materials; wherein, the addition amount of each component is that 0.055g of blue light absorbent, 0.31g of red toner, 0.03g of blue toner and 0.118g of orange toner are added into each 10kg of PC plastic particles;
step 3: adding injection molding raw materials into an injection molding machine to perform injection molding on a lens primary blank;
step 4: cleaning the surface of the lens primary blank;
step 5: performing surface hardening treatment on the lens blank after the cleaning process is completed;
step 6: further drying the lens primary blank subjected to surface hardening treatment;
step 7: the resin lens which can block part of blue light and green light and obviously improve the contrast ratio of yellow and red is obtained after the primary lens blank is dried; wherein, the minimum transmittance of the resin lens for 475nm-650nm wave band light is 31.63%, the transmittance for 280nm-315nm wave band light is 0%, the transmittance for 315nm-380nm wave band light is 0%, and the transmittance for 380nm-500nm wave band light is 20.78%.
In a preferred embodiment of the present invention, the method for surface cleaning the lens blank in step 4 comprises: the pure water added with the detergent and the pure water are adopted and are sequentially and alternately cleaned by matching with ultrasonic vibration, and the temperature of the pure water added with the detergent and the pure water is set at 45-68 ℃.
In a preferred embodiment of the present invention, the method for preparing a resin lens includes the following steps: leaching the primary lens blank with strengthening liquid at 18-22 deg.c for 1-3 min, and pre-stoving at 60-85 deg.c.
In a preferred embodiment, the temperature of the resin lens in step 6 is 95-120 ℃.
Table 1 below shows the transmittance of the resin lenses prepared by the preparation method of the present invention in each wavelength band, the transmittance curve of the resin lenses of the present invention is shown in FIG. 2, and the color space chromaticity diagram of the resin lenses of the present invention is shown in FIG. 3.
TABLE 1
| nm | ％T | nm | ％T | nm | ％T | nm | ％T | nm | ％T | nm | ％T |
| 190 | 0.000 | 200 | 0.000 | 210 | 0.000 | 220 | 0.000 | 230 | 0.000 | 240 | 0.000 |
| 250 | 0.000 | 260 | 0.000 | 270 | 0.000 | 280 | 0.000 | 290 | 0.000 | 300 | 0.000 |
| 310 | 0.000 | 320 | 0.000 | 330 | 0.000 | 340 | 0.000 | 350 | 0.000 | 360 | 0.000 |
| 370 | 0.000 | 380 | 0.000 | 390 | 0.000 | 400 | 0.000 | 410 | 1.335 | 420 | 6.801 |
| 430 | 12.255 | 440 | 17.217 | 450 | 22.365 | 460 | 27.040 | 470 | 29.773 | 480 | 32.493 |
| 490 | 36.222 | 500 | 37.708 | 510 | 39.463 | 520 | 43.209 | 530 | 48.427 | 540 | 54.131 |
| 550 | 57.075 | 560 | 62.706 | 570 | 68.888 | 580 | 76.751 | 590 | 82.016 | 600 | 85.454 |
| 610 | 87.374 | 620 | 86.468 | 630 | 86.947 | 640 | 870720 | 650 | 89.014 | 660 | 91.439 |
| 670 | 92.010 | 680 | 91.964 | 690 | 93.018 | 700 | 92.953 | 710 | 92.151 | 720 | 92.846 |
| 730 | 93.401 | 740 | 92.534 | 750 | 92.291 | 760 | 93.243 | 770 | 93.450 | 780 | 92.538 |
As is clear from Table 1 and FIG. 2, the resin lens of the present invention has a minimum transmittance of 31.63% for light in the 475nm to 650nm wavelength band, a transmittance of 0% for light in the 280nm to 315nm wavelength band, a transmittance of 0% for light in the 315nm to 380nm wavelength band, and a transmittance of 20.78% for light in the 380nm to 500nm wavelength band, and exhibits excellent properties for blocking green light and blue light, and also has significantly improved contrast between yellow and red light (see FIG. 3).
Claims (4)
1. A method for preparing a resin lens, comprising the steps of:
step 1: drying the PC plastic particles at 115 ℃ for 2 hours;
step 2: adding a blue light absorbent, red toner, blue toner and orange toner into the dried PC plastic particles, and uniformly stirring to form injection molding raw materials; wherein the addition amount of each component is 0.055g of the blue light absorber, 0.31g of the red toner, 0.03g of the blue toner, and 0.118g of the orange toner are added to 10kg of the PC plastic particles;
step 3: adding injection molding raw materials into an injection molding machine to perform injection molding on a lens primary blank;
step 4: cleaning the surface of the lens primary blank;
step 5: performing surface hardening treatment on the lens blank after the cleaning process is completed;
step 6: further drying the lens primary blank subjected to surface hardening treatment;
step 7: the resin lens which can block part of blue light and green light and obviously improve the contrast ratio of yellow and red is obtained after the primary lens blank is dried; wherein, the average blocking rate of the resin lens to blue light of 380nm-500nm wave band is 20.78%.
2. The method for producing a resin lens as claimed in claim 1, wherein the surface cleaning in step 4 is performed by alternately cleaning with pure water to which a detergent is added and pure water in order by ultrasonic vibration, and the temperature is set at 45 to 68 ℃.
3. The method for producing a resin lens as claimed in claim 1 or 2, wherein the hardening treatment in step 5 is to leach the lens preform with a strengthening liquid, the liquid temperature of the strengthening liquid is controlled to 18-22 ℃ for 1-3 minutes, and then pre-baking is performed at 60-85 ℃.
4. The method for producing a resin lens as claimed in claim 3, wherein the drying temperature in step 6 is 95 to 120 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210507389.3A CN117089186A (en) | 2022-05-11 | 2022-05-11 | Method for preparing resin lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210507389.3A CN117089186A (en) | 2022-05-11 | 2022-05-11 | Method for preparing resin lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117089186A true CN117089186A (en) | 2023-11-21 |
Family
ID=88782202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210507389.3A Pending CN117089186A (en) | 2022-05-11 | 2022-05-11 | Method for preparing resin lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117089186A (en) |
-
2022
- 2022-05-11 CN CN202210507389.3A patent/CN117089186A/en active Pending
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