Low-reflection anti-yellowing resin lens and preparation method thereof

Abstract

The present invention provides a low-reflective, anti-yellowing resin lens and a method for preparing the same. The lens comprises a resin lens substrate, a hardened layer, a low-reflective film, and a waterproof layer. The substrate, hardened layer, and low-reflective film are arranged in sequence, with the hardened layer located on the surface of the resin lens substrate and the anti-reflective layer located on the surface of the hardened layer. The anti-reflective layer is composed of zirconium oxide (a high-refractive index material) and silicon dioxide (a low-refractive index material). By adjusting the monomer ratio and the reflective film structure, the present invention achieves a low-reflective lens with a clear visual effect and significantly improves the anti-yellowing performance of the resin lens, demonstrating promising market application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of resin lens preparation, and in particular to a low-reflection anti-yellowing resin lens and a preparation method thereof. Background Art

[0002] In recent years, the demand for optical resin lenses in the domestic and international eyewear markets has been increasing. Compared with glass lenses, resin lenses have the advantages of light weight, good dyeing performance, and easy processing. Medium and high refractive index optical resin lenses are more favored by users for their unique advantages such as high light transmittance, UV protection, and ultra-thinness.

[0003] Due to the properties of optical resin lenses, they also suffer from poor scratch resistance and aging, resulting in a significantly shorter lifespan than glass lenses. To address these shortcomings and improve wearer comfort and user experience, a lens with enhanced aging resistance and a longer lifespan is needed. Summary of the Invention

[0004] The present invention is achieved through the following technical solutions:

[0005] A first aspect of the present invention provides a low-reflective, anti-yellowing resin lens, comprising: an anti-yellowing resin lens substrate, a hardened layer, and a low-reflection film layer; wherein the resin lens substrate, the hardened layer, and the low-reflection film layer are arranged in sequence, the hardened layer being located on the surface of the resin lens substrate, and the low-reflection film layer being located on the surface of the hardened layer;

[0006] Furthermore, the low-yellowing resistance resin lens further comprises a waterproof layer, and the waterproof layer is located on the surface of the low-reflection film layer;

[0007] Furthermore, the main component of the material of the hardening layer is silicone;

[0008] Furthermore, the low-reflection film layer includes a silicon dioxide layer, a zirconium oxide layer and an ITO layer;

[0009] Furthermore, the thickness of the center of the resin lens is 1 to 2 mm;

[0010] Furthermore, the thickness of the hardened layer is 2 to 5 μm;

[0011] Furthermore, the thickness of the low-reflection film layer is 300 to 500 nm;

[0012] Furthermore, the thickness of the waterproof layer is 5 to 20 nm;

[0013] Furthermore, the reflectivity of the low yellowing resistance resin lens is ≤2%;

[0014] Furthermore, the yellow index of the low-yellowing resistance resin lens is ≤2%, and the yellow index of the lens increases by ≤20% after aging;

[0015] A second aspect of the present invention provides a method for preparing the above-mentioned low yellowing resistance resin lens, comprising the following steps:

[0016] S1: preparing a resin lens substrate: adding a liquid mixed monomer raw material into a glass mold cavity, polymerizing it into a solid state under the conditions of a starting temperature of 30-35°C, a maximum temperature of 95-105°C, and a polymerization time of 20-22 hours, and then separating the mold to obtain a resin lens, wherein the heating rate is 1-5°C / h;

[0017] S2: preparing a hard layer: forming a hard layer on the surface of the resin lens substrate prepared in S1, thereby obtaining a resin lens containing a hard layer;

[0018] S3: preparing a low-reflection film layer: forming the low-reflection film layer on the surface of the resin lens obtained in S2, that is, obtaining a resin lens containing a low-reflection film layer, specifically comprising:

[0019] S31: forming silicon dioxide layers and zirconium oxide layers alternately on the surface of the resin lens obtained in step S2, that is, obtaining a resin lens including two silicon dioxide layers and two zirconium oxide layers;

[0020] S32: forming a resin lens including an ITO layer on the surface of the resin lens obtained in step S31;

[0021] S33: forming another layer of resin lens containing a silicon dioxide layer on the surface of the resin lens obtained in step S32;

[0022] S4: preparing a waterproof layer: forming a waterproof layer on the surface of the resin lens obtained in step S3.

[0023] Furthermore, in S1, the liquid mixed monomer is composed of 1.598 acrylic resin lens monomer, ultraviolet blocker UV-31, ultraviolet blocker UV-41, pigment B, pigment R, initiator, release agent and polymerizer, and the mass ratio is as follows: acrylic resin lens monomer 1.598: ultraviolet blocker UV-31: ultraviolet blocker UV-41: pigment B: pigment R: initiator: release agent: polymerizer mass ratio is 1000:2~4:0~1:0.5~1.2:0~1:0.7~1.6:0~4:3.0~4.0.

[0024] Beneficial effects

[0025] 1. Achieve low-reflection effect: By adding film materials, designing the film structure, and optimizing the preparation process, the obtained coated lens has a lower reflectivity and can effectively control the visible light reflectivity, significantly improving the light transmittance of the resin lens and achieving a low-reflection effect;

[0026] 2. Significantly improve the durability of lenses: When preparing resin lens substrates, the content of pigments and initiators is adjusted in the mixed monomer formula, and the process parameters during preparation are controlled. After aging tests, the yellowness index and chromaticity value changes of the lenses are controlled within a certain range, which can significantly improve the durability of the lenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the layers of an ultra-low yellowing resistance resin lens described in Example 1 of the present invention; a resin lens substrate 1, a hardening layer 2, a low-reflection film layer 3, and a waterproof layer 4; wherein the low-reflection film layer 3 includes: a silicon dioxide layer 3-1, a zirconium oxide layer 3-2, a silicon dioxide layer 3-3, a zirconium oxide layer 3-4, an ITO layer 3-5, and a silicon dioxide layer 3-6. DETAILED DESCRIPTION

[0028] In a specific embodiment, the acrylic resin lens monomer is an acrylic resin lens monomer with a refractive index of 1.598, which can be produced by Jiangsu Shike New Materials, model SK-60W;

[0029] In a specific embodiment, the UV blocker is provided by BASF SchweizAG and the model is Tinuvin R 31 (hereinafter referred to as UV-31) and Tinuvin R 41 (hereinafter referred to as UV-41);

[0030] Furthermore, the pigments include a blue pigment, Blue Power provided by J&K Scientific Ltd., and pre-treated by Shike New Materials to obtain SK-blue agent (hereinafter referred to as pigment B); and a red pigment, CI Pigment Violet 23dye provided by CHEMFIELD, and pre-treated by Shike New Materials to obtain SK-red agent (hereinafter referred to as pigment R);

[0031] Furthermore, the initiator is azobisisoheptanonitrile, which can be provided by Shanghai Shisi Hewei Chemical;

[0032] Furthermore, the release agent is HILUB 60A provided by KOC SOLUTION Co., Ltd.

[0033] Furthermore, the polymerization agent is n-dodecyl mercaptan, which can be provided by Shanghai Aladdin Biochemical Technology;

[0034] In a specific embodiment, in S1, the liquid mixed monomer is composed of 1.598 acrylic resin lens monomer, UV blocker UV-31, UV blocker UV-41, pigment B, pigment R, initiator, release agent and polymerizer, and the mass ratio is as follows: acrylic resin lens monomer 1.598: UV blocker UV-31: UV blocker UV-41: pigment B: pigment R: initiator: release agent: polymerizer mass ratio is 1000:2~4:0~1:0.5~2:0~1:0.7~1.8:0~4:3.0~4.0;

[0035] In a specific embodiment, the preparation step of S1 includes: according to the above-mentioned mass ratio, taking an appropriate amount of acrylic resin lens monomer 1.598 (about 0.5-3 kg) and UV blocker, mixing and stirring at 50-60 ° C for 20-30 minutes, and the stirring speed is 70-90 r / min to obtain a UV mixed monomer for standby use; then in a vacuum tank with stirring and temperature control, the above-mentioned UV mixed monomer, pigment, release agent and polymerizer are added in sequence according to the above-mentioned mass ratio, mixed and stirred for 10-20 minutes, and the stirring speed is 70-90 r / min, and then the initiator is added according to the above-mentioned mass ratio, vacuumed at a temperature of 15-25 ° C, the vacuum degree is less than 1000 Pa, and then stirred for 60-120 minutes. After the stirring is completed, degassing is carried out under a vacuum condition of less than 1000 Pa for 10-20 minutes, and then passed through 1.0-2.0 A μm bladder filter is injected into a clean mold for casting, and then placed in an oven for curing. The starting temperature is 30-35°C, and then the temperature is gradually increased at a rate of 1-5°C / hour to a maximum temperature of 95-105°C. The total curing time is 20-22 hours. After the curing polymerization is completed, a resin lens substrate is formed. The lens substrate and the mold are separated, and then the lens substrate is placed in a clean curing oven for secondary curing at 100-110°C for 120-180 minutes to obtain the resin lens substrate.

[0036] In a specific embodiment, the step of preparing a hardened layer in S2 includes: ultrasonically cleaning the resin lens substrate obtained in step S1, immersing the clean substrate in a hardening liquid having a mass percentage of 25-30%, the immersion temperature being 10-20° C., and after immersing for 4-6 seconds, pulling out the solution at a speed of 1.0-3.0 mm / s, and then drying it at 70-90° C. for 30-60 minutes, and then placing the immersed substrate in an oven, drying and curing it at 100-150° C. for 120-180 minutes, to obtain a resin lens with a hardened layer; further, the hardening liquid is provided by Dun Optics (Changshu) Co., Ltd., and the hardening liquid model is VH56 (hereinafter referred to as "VH56");

[0037] In a specific embodiment, the process of preparing the low-reflection film layer in step S3 specifically includes:

[0038] S31: Background vacuum ≤5×10 -3 Pa, and the temperature in the coating chamber is 40-60℃, with ion source auxiliary process, high energy electron beam is used to heat silicon dioxide at a rate of Depositing the evaporated silicon dioxide in the form of nano-scale molecules on the surface of the resin lens containing the hardened layer obtained in S2, thereby obtaining a resin lens containing a first silicon dioxide layer;

[0039] S32: Background vacuum ≤5×10 -3 Pa, and the temperature in the coating chamber is 40-60 ° C, and an ion source is used to assist the process, the zirconium oxide is heated by a high-energy electron beam at a rate of Depositing the evaporated zirconium oxide in the form of nano-scale molecules on the surface of the resin lens containing the first silicon dioxide layer obtained in S31, thereby obtaining a resin lens containing the second zirconium oxide layer;

[0040] S33: Repeat steps S31 and S32 once to obtain a resin lens containing a third silicon dioxide layer and a fourth zirconium oxide layer;

[0041] S34: Background vacuum ≤5×10 -3 Pa, and the temperature in the coating chamber is 40-60℃, and under the conditions of ion source auxiliary process, high energy electron beam is used to heat ITO at a rate of Depositing the evaporated ITO in the form of nano-scale molecules on the surface of the resin lens obtained in S33 to obtain a resin lens containing a fifth ITO layer;

[0042] S35: Repeat step S31 once to obtain a resin lens containing a sixth silicon dioxide layer;

[0043] In a specific embodiment, the step S4 of preparing the waterproof layer comprises the following steps: continuing to use the vacuum coating process on the lens surface obtained in step S3, at a background vacuum degree of ≤ 5 × 10 -3 Pa, and the temperature in the coating chamber is 40-60℃, high energy electron beam is used to heat and evaporate the waterproof material at a rate of The evaporated fluorine-containing waterproof material (preferably containing C 12 F 27 The waterproof material N is deposited in the form of nano-scale molecules on the surface of the lens obtained in S3 to obtain a resin lens with a waterproof layer. Specific embodiments

[0045] Example 1

[0046] A low-yellowing-resistance resin lens, the composition and preparation method of which include the following steps:

[0047] (1) Resin lens composition: substrate 1 / 1.0~2.0mm, hardened layer 2 (VH56) / 2~3μm, silicon dioxide layer 3-1114nm, zirconium oxide layer 3-231nm, silicon dioxide layer 3-312nm, zirconium oxide layer 3-479nm, ITO layer 3-55nm, silicon dioxide layer 3-679nm, waterproof layer 4 / 8~12nm;

[0048] (2) Preparation method:

[0049] S1 Preparation of resin lens substrate 1:

[0050] The mixed monomer formula is shown in Table 1-1:

[0051] Table 1-1

[0052]

[0053] The preparation steps of S1 include: taking an appropriate amount of acrylic resin lens monomer 1.59g (about 0.5-3kg) and ultraviolet blocker according to the above-mentioned mass ratio, mixing, stirring at 55°C for 30 minutes, and the stirring speed is 80r / min to obtain a UV mixed monomer for standby use; then, in a vacuum tank with stirring and temperature control, adding the above-mentioned UV mixed monomer, pigment, release agent and polymerizer in the above-mentioned mass ratio in sequence, mixing and stirring for 20 minutes, and the stirring speed is 80r / min, and then adding an initiator according to the above-mentioned mass ratio, and evacuating at a temperature of 20°C with a vacuum degree of less than 1000Pa. Then, the mixture was stirred for 90 minutes. After the stirring was completed, it was degassed for 10 minutes under a vacuum condition of less than 1000 Pa. Then, it was injected into a clean mold through a 1.0 μm bladder filter for casting. After completion, it was placed in an oven for curing. The starting temperature was 35° C., and then the temperature was gradually increased at a rate of 1 to 5° C. / hour to a maximum temperature of 100° C. The total curing time was 21.05 hours. After the curing polymerization was completed, the curing procedure was shown in Table 1-2 to form a resin lens substrate cured product. The lens substrate cured product and the mold were separated, and then the lens substrate cured product was placed in a clean curing oven and subjected to secondary curing at 110° C. for 150 minutes to obtain the resin lens substrate.

[0054] Table 1-2 Curing procedures

[0055] step Temperature / ℃ Time / hour 1 35 0.05 2 35 1 3 36 6 4 55 6 5 100 4 6 100 2 7 75 2

[0056] S2: preparing a hard layer: forming a hard layer on the surface of the resin lens substrate prepared in S1, that is, obtaining a resin lens with a hard layer, the specific steps comprising: ultrasonically cleaning the resin lens substrate obtained in step S1, immersing the clean substrate in a hardening solution with a mass percentage of 27.5%, the immersion temperature being 15°C, and pulling out the solution at a speed of 2.0 mm / s after immersion for 5 seconds, then drying the substrate at 80°C for 45 minutes, and then placing the immersed substrate in an oven, drying and curing at 125°C for 150 minutes, to obtain a resin lens with a hard layer;

[0057] The process of preparing the low-reflection film layer in S3 specifically includes: S31: when the background vacuum degree is ≤5×10 -3 Pa, and the temperature in the coating chamber is 50 ° C, under the conditions of ion source auxiliary process, high energy electron beam is used to heat the silicon dioxide at a rate of The evaporated silicon dioxide is deposited in the form of nano-scale molecules on the surface of the resin lens with the hardened layer obtained in S2, so as to obtain a resin lens with the first silicon dioxide layer; S32: at a background vacuum degree of ≤5×10 -3 Pa, and the temperature in the coating chamber is 50 ° C, and under the conditions of ion source auxiliary process, high energy electron beam is used to heat the zirconium oxide at a rate of The evaporated zirconium oxide is deposited in the form of nano-scale molecules on the surface of the resin lens containing the first silicon dioxide layer obtained in S31, thereby obtaining a resin lens containing a second zirconium oxide layer; S33: repeating steps S31 and S32 once respectively to obtain a resin lens containing a third silicon dioxide layer and a fourth zirconium oxide layer; S34: at a background vacuum degree of ≤5×10 -3 Pa, and the temperature in the coating chamber is 50℃, and under the conditions of ion source auxiliary process, high energy electron beam is used to heat ITO at a rate of Depositing the evaporated ITO in the form of nano-scale molecules on the surface of the resin lens obtained in S33 to obtain a resin lens containing a fifth ITO layer; S35: Repeating step S31 once to obtain a resin lens containing a sixth silicon dioxide layer, wherein the ion source assisted process parameters in steps S31 to S35 are: the ion source is a Hall source, the anode voltage is 110V, the anode current is 3A, the auxiliary gas is O2, and the flow rate is 15sccm;

[0058] S4 preparation of the waterproof layer includes the following steps: continuing to use the vacuum coating process on the lens surface obtained in step S3, and setting the background vacuum degree ≤5×10 -3 Pa, and the temperature in the coating chamber is 50℃, high energy electron beam is used to heat and evaporate the waterproof material at a rate of The evaporated fluorine-containing waterproof material is deposited in the form of nano-scale molecules on the surface of the lens obtained in S3 to obtain a resin lens containing a waterproof layer.

[0059] Example 2

[0060] A low-yellowing-resistance resin lens, the composition and preparation method of which include the following steps:

[0061] (1) Composition: substrate 1 / 1.0~2.0mm, hardening layer 2 (VH56) / 2~3μm, silicon dioxide layer 3-1150nm, zirconium oxide layer 3-232nm, silicon dioxide layer 3-312nm, zirconium oxide layer 3-479nm, ITO layer 3-55nm, silicon dioxide layer 3-650nm, waterproof layer 4 / 8~12nm;

[0062] (2) Preparation method:

[0063] S1 Preparation of resin lens substrate 1:

[0064] The mixed monomer formula is shown in Table 2:

[0065] Table 2

[0066]

[0067] The rest of the preparation methods are the same as in Example 1.

[0068] Example 3

[0069] A low-yellowing-resistance resin lens, the composition and preparation method of which include the following steps:

[0070] (1) Composition: substrate 1 / 1.0~2.0mm, hardening layer 2 (VH56) / 2~3μm, silicon dioxide layer 3-1180nm, zirconium oxide layer 3-232nm, silicon dioxide layer 3-311nm, zirconium oxide layer 3-485nm, ITO layer 3-56nm, silicon dioxide layer 3-680nm, waterproof layer 4 / 8~12nm;

[0071] (2) Preparation method:

[0072] S1 Preparation of resin lens substrate 1:

[0073] The mixed monomer formula is shown in Table 3:

[0074] Table 3

[0075]

[0076] The rest of the preparation methods are the same as in Example 1.

[0077] (2) Comparative Example

[0078] A low-yellowing-resistance resin lens, the composition and preparation method of which include the following steps:

[0079] (1) Composition: substrate 1 / 1.0~2.0mm, hardening layer 2 (VH56) / 2~3μm, silicon dioxide layer 3-1220nm, zirconium oxide layer 3-232nm, silicon dioxide layer 3-311nm, zirconium oxide layer 3-485nm, ITO layer 3-56nm, silicon dioxide layer 3-680nm, waterproof layer 4 / 8~12nm;

[0080] (2) Preparation method:

[0081] S1 Preparation of resin lens substrate 1:

[0082] The mixed monomer formula is shown in Table 4:

[0083] Table 4

[0084]

[0085] The rest of the preparation methods are the same as in Example 1.

[0086] (3) Experimental examples

[0087] 1. The comparison of substrate monomer formulations of Example 1 and the comparative example is shown in Table 5 below:

[0088] Table 5

[0089]

[0090]

[0091] The optical effects of the comparative example and example substrates, such as refractive index, Abbe number, transmittance, background color, yellow index, UV cutoff wavelength, and aging performance, were measured. The results are shown in Table 6:

[0092] Table 6

[0093]

[0094] The test results of the comparative examples and the exemplary embodiments show that adjusting the monomer formula does not change the refractive index and Abbe number of the lens, the transmittance and UV cutoff wavelength of the lens are basically the same, and the base color of the lens of the implementation group appears darker to the naked eye.

[0095] Weather resistance shows that the anti-yellowing performance of the embodiment is better than that of the comparative example. The yellow index of the comparative example lens increases from 0.76 to 1.58 before and after QSUN aging treatment, while the yellow index of the embodiment 1 lens increases from 0.95 to 1.07 before and after QSUN aging treatment.

[0096] 2. The membrane structures of Examples 1 to 3 and Comparative Example 1 are shown in Table 7 below:

[0097] Table 7

[0098] project <![CDATA[SiO2 / nm]]> <![CDATA[ZrO2 / nm]]> <![CDATA[SiO2 / nm]]> <![CDATA[ZrO2 / nm]]> ITO / nm <![CDATA[SiO2 / nm]]> Example 1 114 31 12 79 5 79 Example 2 150 32 12 79 5 50 Example 3 180 32 11 85 6 80 Comparative Example 1 220 32 11 85 6 80

[0099] The transmittance, yellowness index, average reflectance and reflectance chromaticity values of Examples 1 to 3 and Comparative Example 1 were measured, and the measurement results are recorded in Table 8 below.

[0100] Table 8

[0101]

[0102]

[0103] The test results of the comparative examples and examples show that adjusting the film layer design can effectively reduce the reflectivity of the lens and improve the transmittance of the lens. Among them, Example 1 has the best anti-reflection effect, and Example 3 has the best anti-reflection effect. Taking into account the stability of the lens film color and the chromaticity value of the reflected color, Example 1 is the best solution.

[0104] in conclusion:

[0105] (1) Anti-yellowing ability: the anti-aging performance of the lenses of the embodiments is better than that of the comparative examples, among which the anti-yellowing performance of Example 1 is the best;

[0106] (2) Low reflection effect: Examples 1 to 3 all have a low visible light reflectivity of 1.3% to 1.9%;

[0107] (3) When other conditions remain unchanged, increasing the pigment and initiator in the monomer formula can improve the anti-yellowing performance of the substrate. Combined with the film system design of the embodiment, the anti-reflection effect of the lens is significantly improved, and the chromaticity value of the lens is stable, which can meet the needs of large-scale production.

[0108] It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring creative effort. Therefore, the present invention is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A low-reflection, anti-yellowing resin lens, characterized in that: include: An anti-yellowing resin lens substrate, a hardened layer and a low-reflection film layer; wherein the resin lens substrate, the hardened layer and the low-reflection film layer are arranged in sequence, the hardened layer is located on the surface of the resin lens substrate, and the low-reflection film layer is located on the surface of the hardened layer; the resin lens substrate is made of a liquid mixed monomer, and the liquid mixed monomer consists of acrylic resin lens monomer 1.598, UV blocker UV-31, UV blocker UV-41, pigment B, pigment R, initiator, release agent and polymerizer, and the mass ratio is as follows: acrylic resin lens monomer 1.598: UV blocker UV-31: UV blocker UV-41: pigment B: pigment R: initiator: release agent: polymerizer, the mass ratio is 1000: 2~4: 0.3~0.5: 0.8~1.2: 0.3~1: 1.0~1.6:1.5~4: 3.0~4.

0.

2. The low-reflection, anti-yellowing resin lens according to claim 1, characterized in that: The low-reflection anti-yellowing resin lens further includes a waterproof layer, which is located on the surface of the low-reflection film layer.

3. The low-reflection anti-yellowing resin lens according to claim 1 or 2, characterized in that: The main component of the material of the hardening layer is silicone.

4. The low-reflection, anti-yellowing resin lens according to claim 1 or 2, characterized in that: The low-reflection film layer includes a silicon dioxide layer, a zirconium oxide layer and an ITO layer.

5. The low-reflection anti-yellowing resin lens according to claim 1 or 2, characterized in that: The thickness of the center of the resin lens is 1-2 mm.

6. The low-reflective, anti-yellowing resin lens according to claim 1 or 2, characterized in that: The thickness of the hardened layer is 2 to 5 μ m.

7. The low-reflection, anti-yellowing resin lens according to claim 1 or 2, characterized in that: The thickness of the low-reflection film layer is 300-500 nm.

8. The low-reflective, anti-yellowing resin lens according to claim 2, wherein: The thickness of the waterproof layer is 5-20 nm.

9. The low-reflective, anti-yellowing resin lens according to claim 1, wherein: The reflectivity of the low-reflection anti-yellowing resin lens is ≤2%.

10. A method for preparing the low-reflective anti-yellowing resin lens according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1 Preparation of resin lens substrate: Add liquid mixed monomer raw materials into the glass mold cavity, polymerize to a solid state under the conditions of a starting temperature of 30-35°C, a maximum temperature of 95-105°C, and a polymerization time of 20-22 hours. Then, the mold is separated to obtain a resin lens. The heating rate is 1-5°C / h. S2: preparing a hard layer: forming a hard layer on the surface of the resin lens substrate prepared in S1, thereby obtaining a resin lens containing a hard layer; S3: preparing a low-reflection film layer: forming the low-reflection film layer on the surface of the resin lens obtained in S2, that is, obtaining a resin lens containing a low-reflection film layer, specifically comprising: S31: forming silicon dioxide layers and zirconium oxide layers alternately on the surface of the resin lens obtained in step S2, that is, obtaining a resin lens including two silicon dioxide layers and two zirconium oxide layers; S32: forming a resin lens including an ITO layer on the surface of the resin lens obtained in step S31; S33: forming another layer of resin lens containing a silicon dioxide layer on the surface of the resin lens obtained in step S32; S4: preparing a waterproof layer: forming a waterproof layer on the surface of the resin lens obtained in step S3.

11. The method for preparing a low-reflective anti-yellowing resin lens according to claim 10, characterized in that: In S1, the liquid mixed monomer is composed of 1.598 acrylic resin lens monomer, ultraviolet blocker UV-31, ultraviolet blocker UV-41, pigment B, pigment R, initiator, release agent and polymerizer, and the mass ratio is as follows: 1.598 acrylic resin lens monomer: ultraviolet blocker UV-31: ultraviolet blocker UV-41: pigment B: pigment R: initiator: release agent: polymerizer mass ratio is 1000: 2~4: 0.3~0.5: 0.8~1.2: 0.3~1: 1.0~1.6:1.5~4: 3.0~4.

0.

12. The method for preparing a low-reflective anti-yellowing resin lens according to claim 11, characterized in that: The acrylic resin lens monomer is an acrylic resin lens monomer with a refractive index of 1.

598.

13. The method for preparing a low-reflective anti-yellowing resin lens according to claim 11, characterized in that: The UV blocker is provided by BASF Schweiz AG and its model is Tinuvin R 31 (hereinafter referred to as UV-31) and Tinuvin R 41 (hereinafter referred to as UV-41).

14. The method for preparing a low-reflective anti-yellowing resin lens according to claim 11, wherein: The pigments include blue pigment and red pigment. The blue pigment is Blue Power provided by J&K Scientific Ltd., which is a pre-treatment solution of SK-blue agent of SK New Materials (hereinafter referred to as pigment B); the red pigment is CIPigmentViolet 23 dye provided by CHEMFIELD, which is a pre-treatment solution of SK-red agent of SK New Materials (hereinafter referred to as pigment R).

15. The method for preparing a low-reflective anti-yellowing resin lens according to claim 11, wherein: The initiator is azobisisoheptanonitrile.

16. The method for preparing a low-reflective anti-yellowing resin lens according to claim 12, wherein: The release agent is HILUB 60A.

17. The method for preparing a low-reflective anti-yellowing resin lens according to claim 11, wherein: The polymerization agent is n-dodecyl mercaptan.

18. The method for preparing a low-reflective anti-yellowing resin lens according to claim 10, wherein: The preparation steps of S1 include: taking an appropriate amount of acrylic resin lens monomer 1.598 and ultraviolet blocker according to the above-mentioned mass ratio, mixing them, stirring at 50-60°C for 20-30 minutes, and stirring at a speed of 70-90 r / min to obtain a UV mixed monomer for standby use; then, in a vacuum tank with stirring and temperature control, adding the above-mentioned UV mixed monomer, pigment, release agent and polymerizer in sequence according to the above-mentioned mass ratio, mixing and stirring for 10-20 minutes, and stirring at a speed of 70-90 r / min, and then adding an initiator according to the above-mentioned mass ratio, vacuuming at a temperature of 15-25°C, with a vacuum degree of less than 1000Pa, and then stirring for 60-120 minutes. After the stirring is completed, degassing is carried out under a vacuum condition of less than 1000Pa for 10-20 minutes, and then passing through a 1.0-2.0 μ The filter is injected into a clean mold for casting, and then placed in an oven for curing. The starting temperature is 30-35°C, and then the temperature is gradually increased at a rate of 1-5°C / hour to a maximum temperature of 95-105°C. The total curing time is 20-22 hours. After the curing polymerization is completed, a resin lens substrate solid is formed. The lens substrate solid and the mold are separated, and then the lens substrate solid is placed in a clean curing oven for secondary curing at 100-110°C for 120-180 minutes to obtain the resin lens substrate.

19. The method for preparing a low-reflective anti-yellowing resin lens according to claim 10, wherein: The step S2 of preparing the hardened layer includes: ultrasonically cleaning the resin lens substrate obtained in step S1, immersing the clean substrate in a hardening liquid with a mass percentage of 25-30%, the immersion temperature being 10-20°C, and pulling out the solution at a speed of 1.0-3.0 mm / s after immersion for 4-6 seconds, and then drying it at 70-90°C for 30-60 minutes, and then placing the dried substrate in an oven and drying and curing it at 100-150°C for 120-180 minutes to obtain a resin lens containing a hardened layer.

20. The method for preparing a low-reflective anti-yellowing resin lens according to claim 10, characterized in that: The process of preparing the low-reflection film layer in step S3 specifically includes: S31: Background vacuum ≤5×10 -3 Pa, and the temperature in the coating chamber is: 40~60℃, under the conditions of ion source auxiliary process, high-energy electron beam is used to heat silicon dioxide, and the evaporated silicon dioxide is deposited in the form of nano-scale molecules at a rate of 2~10Å / S on the surface of the resin lens containing the hardened layer obtained in S2, that is, a resin lens containing the first silicon dioxide layer is obtained; S32: Background vacuum ≤5×10 -3 Pa, and the temperature in the coating chamber is 40-60° C., and under the conditions of an ion source-assisted process, a high-energy electron beam is used to heat the zirconium oxide, and the evaporated zirconium oxide is deposited in the form of nano-scale molecules at a rate of 1-4 Å / S on the surface of the resin lens containing the first silicon dioxide layer obtained in S31, thereby obtaining a resin lens containing a second zirconium oxide layer; S33: Repeat steps S31 and S32 once to obtain a resin lens containing a third silicon dioxide layer and a fourth zirconium oxide layer; S34: Background vacuum ≤5×10 -3 Pa, and the temperature in the coating chamber is 40~60℃, and an ion source is used to assist the process. A high-energy electron beam is used to heat the ITO, and the evaporated ITO is deposited in the form of nano-scale molecules on the surface of the resin lens obtained in S33 at a rate of 1~2Å / S, thereby obtaining a resin lens containing a fifth ITO layer. S35: Repeat step S31 once to obtain a resin lens containing a sixth silicon dioxide layer.

21. The method for preparing a low-reflective anti-yellowing resin lens according to claim 10, wherein: The step S4 of preparing the waterproof layer comprises the following steps: continuing to use the vacuum coating process on the lens surface obtained in step S3, and applying the vacuum coating process at a background vacuum degree of ≤5×10 -3 Under the conditions of Pa and the temperature in the coating chamber being 40~60℃, high-energy electron beam heating is used to evaporate the waterproof material, and the evaporated fluorine-containing waterproof material is deposited in the form of nano-scale molecules on the surface of the lens obtained by S3 at a rate of 2~5Å / S to obtain a resin lens with a waterproof layer.

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