Enhanced and reduced color lens and preparation method thereof

Abstract

The invention relates to a lens for enhancing and reducing color and a preparation method thereof, the lens for enhancing and reducing color comprises a substrate, the substrate contains mixed toner so as to adjust the transmittance of blue, green, yellow, orange and red, the blue transmittance difference value is greater than or equal to 12%, the green transmittance difference value is greater than or equal to 20%, and the red transmittance difference value is greater than or equal to 20%. The yellow transmittance difference value is greater than or equal to 25%, the orange transmittance difference value is greater than or equal to 8%, and the red transmittance difference value is greater than or equal to 50%; an anti-reflection film layer is arranged on the surface of the substrate, so that light waves of 380-780 nm visible light can be reflected, and the average reflectivity is smaller than or equal to 0.6%. The lens capable of enhancing and restoring the colors is not only suitable for driving scenes of enhancing signal lamps and lane line identification in foggy days and at night, but also suitable for outdoor sports, snowfield fluctuation distinguishing during skiing, ball track tracking during golf, road surface and surrounding obstacle outlines during riding and other scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of lenses, in particular to an enhanced color restoration lens and a preparation method thereof. Background Art

[0002] Glasses are frequently used items that help users identify objects in their surroundings in specific scenarios. For example, mist particles in foggy weather can cause Mie scattering of light, significantly reducing the transmittance of visible light and creating a halo effect, blurring the outlines of objects and reducing contrast. Functional glasses can provide clearer images. For another example, at night, when ambient light intensity is insufficient, the dilated pupil of the human eye introduces more spherical aberration. At the same time, artificial light sources (such as car lights) are prone to glare, exacerbating visual fatigue and making it difficult to identify details. Functional glasses can prevent glare and reduce the risk of accidents.

[0003] Currently, functional lenses suitable for these scenarios typically utilize a multi-layer interference coating to reduce reflected light loss, increasing light transmittance by 8%-10%, effectively suppressing glare. However, this method only achieves image clarity that closely matches the original object in the surrounding environment. This means that object outlines may be blurred in foggy conditions. Further coating the multi-layer interference coating would increase lens manufacturing costs, hindering mass market adoption. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an enhanced color reduction lens and a method for preparing the same. The specific scheme is as follows:

[0005] Disclosed is an enhanced color reduction lens, comprising a substrate containing mixed color powder to adjust the transmittance of blue, green, yellow, orange, and red, including a blue transmittance high / low difference of ≧12%, a green transmittance high / low difference of ≧20%, a yellow transmittance high / low difference of ≧25%, an orange transmittance high / low difference of ≧8%, and a red transmittance high / low difference of ≧50%. The surface of the substrate is provided with an anti-reflection film layer to achieve an average reflectivity of ≦0.6% for visible light waves in the range of 380-780 nm.

[0006] Furthermore, the substrate comprises, by weight: 1-10 parts of plastic rice, 0.01-0.5 parts of yellow powder, 0.01-0.5 parts of purple powder, 0.01-0.5 parts of green powder, 0.01-0.5 parts of red powder, 0.01-0.1 parts of black powder, 0.01-0.1 parts of blue powder, and 0.01-0.1 parts of orange powder.

[0007] Furthermore, the substrate is composed of the following components in parts by weight: 3-7 parts of plastic rice, 0.02-0.4 parts of yellow powder, 0.02-0.4 parts of purple powder, 0.02-0.4 parts of green powder, 0.02-0.4 parts of red powder, 0.03-0.07 parts of black powder, 0.01-0.07 parts of blue powder, and 0.01-0.07 parts of orange powder.

[0008] Furthermore, both the inner surface and the outer surface of the substrate are provided with an anti-reflection film layer.

[0009] Furthermore, the anti-reflection film layer is formed by alternately stacking a material with a refractive index of 1.85-2.4 and a material with a refractive index of 1.2-1.5.

[0010] Furthermore, the anti-reflection film layer has 7-11 layers, wherein the film layer formed by a material with a refractive index of 1.2-1.5 is connected to the substrate.

[0011] Furthermore, the material with a refractive index of 1.85-2.4 is one or a mixture of Ti3O5, Ta2O5, Nb2O5, and coating material H4, and the material with a refractive index of 1.2-1.5 is SiO2 or coating material L5.

[0012] Furthermore, the anti-reflection film layer consists of 9 layers, which are alternately stacked with SiO2 and coating material H4 from close to the substrate to the outside, with thicknesses of 1000-3000 angstroms, 50-300 angstroms, 100-500 angstroms, 1000-3000 angstroms, 100-500 angstroms, 100-500 angstroms, 1000-3000 angstroms, and 500-1200 angstroms.

[0013] Furthermore, the anti-reflection film layer consists of 11 layers, which are alternately stacked with the coating material L5 and any one of the metal oxides Ti3O5, Ta2O5, and Nb2O5 from close to the substrate to the outside, with thicknesses of 1500-2500 angstroms, 50-200 angstroms, 600-800 angstroms, 50-200 angstroms, 1000-2000 angstroms, 50-200 angstroms, 600-700 angstroms, 500-800 angstroms, 50-200 angstroms, 400-700 angstroms, and 700-1200 angstroms, respectively.

[0014] The present invention also protects a method for preparing the enhanced color reduction lens, comprising the following steps:

[0015] S1. Mix the plastic rice and color powder, stir evenly, and then bake at 90-135 ℃ for 3-5 hours;

[0016] S2. The baked material is injection molded to obtain a semi-finished product;

[0017] S3. The semi-finished product is cleaned and the surface is hardened, and then cured at 90-130 ℃ for 1-4 hours;

[0018] S4. The cured semi-finished product is baked at 40-70 ℃ for 1-3 hours to obtain a substrate;

[0019] S5. The substrate is placed in a vacuum chamber for vacuum coating to form an anti-reflective film layer on the substrate; during coating, the vacuum degree of the vacuum chamber is less than or equal to 1.5*10 -5 Torr, and control the temperature of the vacuum chamber at 15-65 ° C, use an electron gun to bombard the thin film material, and the material is evaporated and deposited on the surface of the substrate in the form of angstrom-level molecules. The evaporation rate of the material with a refractive index of 1.2-1.5 is The evaporation rate of materials with a refractive index of 1.85-2.4 is

[0020] Beneficial effects: The enhanced color restoration lens described in the present invention adopts a substrate formed by injection molding of mixed color powder to adjust the transmittance of blue, green, yellow, orange and red in visible light. On the one hand, by filtering out part of the blue and green light, scattering is reduced, glare is reduced, and visual clarity is improved; on the other hand, by filtering out part of the yellow, orange and red light, the contrast between light and dark is enhanced, and the clarity of the edge contour of the object is further improved. Overall, the high and low difference in blue transmittance is ≥12%, the high and low difference in green transmittance is ≥20%, the high and low difference in yellow transmittance is ≥25%, the high and low difference in orange transmittance is ≥8%, and the high and low difference in red transmittance is ≥50%.

[0021] Furthermore, using the above substrate alone can result in poor imaging. The present invention coats the substrate surface with an anti-reflection coating to achieve an average reflectivity of ≤0.6% for visible light between 380 and 780 nm. This reduces reflectivity, minimizes internal reflections within the substrate, improves lens transmittance, and prevents stray light from affecting image clarity.

[0022] The enhanced color restoration lens provided by the present invention is not only suitable for driving scenarios such as enhancing signal light and lane line recognition in foggy weather and at night, but is also suitable for outdoor sports, distinguishing snow undulations when skiing, tracking the trajectory of a ball in golf, and using it when cycling to identify the outlines of obstacles on and around the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings. Obviously, the drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0024] Figure 1 This is a substrate detection spectrum provided by Example 1 of the present invention;

[0025] Figure 2 This is a detection spectrum diagram of the anti-reflection film layer provided in Example 1 of the present invention. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. In the examples, if specific techniques or conditions are not specified, the techniques or conditions described in the literature in this area or the product specifications are used. Reagents or instruments used that do not specify the manufacturer are conventional products that can be obtained commercially. In the following examples, if not clearly stated, "%" refers to weight percentage.

[0027] The coating material L5, the Chinese common name is "silicon aluminum mixture", "L5" is its German common name, this material can be provided by Merck Optical Company or Longpian Vacuum Technology Co., Ltd., the common specifications are 1-3mm bulk, white.

[0028] The coating material H4 is a mixture of titanium oxide and lanthanum oxide, which can be provided by Merck Optics.

[0029] The toners used in the embodiments are all commercially available products, for example, they can be purchased from Xiamen Xinhuacai Plastic Pigments Co., Ltd.

[0030] Example 1

[0031] An enhanced color reduction lens comprises a substrate containing mixed color powder to adjust the transmittance of blue, green, yellow, orange and red, including a blue transmittance high-low difference of ≥12%, a green transmittance high-low difference of ≥20%, a yellow transmittance high-low difference of ≥25%, an orange transmittance high-low difference of ≥8%, and a red transmittance high-low difference of ≥50%.

[0032] Specifically, the raw material ratio of the substrate is shown in Table 1. During preparation, plastic rice and color powder are mixed and then injection molded. Due to the selective absorption effect of the mixed color powder, it has different transmittance adjustment effects on different light waves in the visible light, such as Figure 1 and as shown in Table 2.

[0033] Table 1 Amount of raw materials used for substrates (parts by weight)

[0034] raw material Example 1 Example 2 Example 3 Example 4 Example 5 Comparative Example 1 Comparative Example 2 Plastic rice 5 1 3 7 10 5 5 Yellow powder 0.2 0.01 0.5 0.4 0.1 0.2 0 Purple pink 0.3 0.01 0.5 0.4 0.1 0 0.3 Green powder 0.2 0.01 0.5 0.4 0.1 0.2 0.2 Red powder 0.04 0.1 0.01 0.03 0.07 0.04 0.04 Black powder 0.03 0.1 0.01 0.03 0.07 0.03 0.03 blue powder 0.03 0.1 0.01 0.03 0.07 0.03 0.03 Orange powder 0.05 0.1 0.01 0.03 0.07 0.05 0.05

[0035] Table 2 Transmittance test results of substrate

[0036]

[0037] Anti-reflection film layers are respectively provided on the inner and outer surfaces of the above-mentioned substrate. Specifically, there are 9 anti-reflection film layers, which are alternately stacked with SiO2 and coating material H4 from close to the substrate to the outside, with thicknesses of 2000 angstroms, 200 angstroms, 300 angstroms, 2000 angstroms, 300 angstroms, 300 angstroms, 2000 angstroms, and 800 angstroms, respectively.

[0038] The above structure can achieve an average reflectivity of 0.6% or less for visible light waves between 380 and 780 nm. The spectrum test results of the anti-reflection film can be found in Figure 2 and Table 3.

[0039] The lens is prepared as follows:

[0040] S1 according to the dosage in Table 1, the plastic rice, color powder mixed and stirred, and then baked at 90-100 ℃ for 3-4 hours;

[0041] S2. The baked material is injection molded to obtain a semi-finished product;

[0042] S3. The semi-finished product is cleaned and the surface is hardened, and then cured at 90-100 ℃ for 3-4 hours;

[0043] S4. The cured semi-finished product was baked at 60-70 ℃ for 2-3 hours to obtain a substrate;

[0044] S5. The substrate is placed in a vacuum chamber for vacuum coating to form an anti-reflective film layer on the substrate; during coating, the vacuum degree of the vacuum chamber is less than or equal to 1.5*10 -5 Torr, and control the temperature of the vacuum chamber at 55-65 ° C, use an electron gun to bombard the thin film material, and the material is evaporated and deposited on the surface of the substrate in the form of angstrom-level molecules. The evaporation rate of the material with a refractive index of 1.2-1.5 is The evaporation rate of materials with a refractive index of 1.85-2.4 is

[0045] Table 3 Reflectivity test results of anti-reflection film layer

[0046]

[0047]

[0048] Example 2

[0049] An enhanced color reduction lens comprises a substrate containing mixed toners to adjust the transmittance of blue, green, yellow, orange, and red. Specifically, the raw material ratios of the substrate are shown in Table 1. Plastic rice and toners are mixed and then injection molded, and the preparation method is the same as in Example 1. By combining different colored toners, the substrate can adjust the transmittance of different colors, including a blue transmittance difference of ≥12%, a green transmittance difference of ≥20%, a yellow transmittance difference of ≥25%, an orange transmittance difference of ≥8%, and a red transmittance difference of ≥50%.

[0050] The lens also includes anti-reflective coatings applied to the inner and outer surfaces of the substrate. Specifically, the anti-reflective coating comprises nine layers, alternating SiO2 and Ti3O5 layers, with thicknesses of 1000 angstroms, 300 angstroms, 100 angstroms, 3000 angstroms, 100 angstroms, 500 angstroms, 100 angstroms, 3000 angstroms, and 500 angstroms, respectively, from closest to the substrate outward. The anti-reflective coatings are prepared using the same method as in Example 1. This structure achieves an average reflectivity of ≤0.6% for visible light within the range of 380-780 nm.

[0051] Example 3

[0052] An enhanced color reduction lens comprises a substrate containing mixed toners to adjust the transmittance of blue, green, yellow, orange, and red. Specifically, the raw material ratios of the substrate are shown in Table 1. Plastic rice and toners are mixed and then injection molded, and the preparation method is the same as in Example 1. By combining different colored toners, the substrate can adjust the transmittance of different colors, including a blue transmittance difference of ≥12%, a green transmittance difference of ≥20%, a yellow transmittance difference of ≥25%, an orange transmittance difference of ≥8%, and a red transmittance difference of ≥50%.

[0053] The lens also includes anti-reflective coatings applied to the inner and outer surfaces of the substrate. Specifically, the anti-reflective coating comprises nine layers, consisting of alternating SiO2 and Ta2O5 layers, with thicknesses of 3000 angstroms, 50 angstroms, 500 angstroms, 1000 angstroms, 500 angstroms, 100 angstroms, 500 angstroms, 1000 angstroms, and 1200 angstroms, respectively, from closest to the substrate outward. The anti-reflective coatings are prepared using the same method as in Example 1. This structure achieves an average reflectivity of ≤0.6% for visible light within the range of 380-780 nm.

[0054] Example 4

[0055] An enhanced color reduction lens comprises a substrate containing mixed toners to adjust the transmittance of blue, green, yellow, orange, and red. Specifically, the raw material ratios of the substrate are shown in Table 1. Plastic rice and toners are mixed and then injection molded, and the preparation method is the same as in Example 1. By combining different colored toners, the substrate can adjust the transmittance of different colors, including a blue transmittance difference of ≥12%, a green transmittance difference of ≥20%, a yellow transmittance difference of ≥25%, an orange transmittance difference of ≥8%, and a red transmittance difference of ≥50%.

[0056] The lens also includes anti-reflective coatings applied to the inner and outer surfaces of the substrate. Specifically, the anti-reflective coating comprises 11 layers, with SiO2 and Nb2O5 alternating layers, from closest to the substrate outward, having thicknesses of 1500 angstroms, 200 angstroms, 600 angstroms, 200 angstroms, 1000 angstroms, 200 angstroms, 600 angstroms, 800 angstroms, 50 angstroms, 700 angstroms, and 700 angstroms, respectively. The anti-reflective coatings are prepared using the same method as in Example 1. This structure achieves an average reflectivity of ≤0.6% for visible light within the range of 380-780 nm.

[0057] Example 5

[0058] An enhanced color reduction lens comprises a substrate containing mixed toners to adjust the transmittance of blue, green, yellow, orange, and red. Specifically, the raw material ratios of the substrate are shown in Table 1. Plastic rice and toners are mixed and then injection molded, and the preparation method is the same as in Example 1. By combining different colored toners, the substrate can adjust the transmittance of different colors, including a blue transmittance difference of ≥12%, a green transmittance difference of ≥20%, a yellow transmittance difference of ≥25%, an orange transmittance difference of ≥8%, and a red transmittance difference of ≥50%.

[0059] The lens also includes anti-reflective coatings applied to the inner and outer surfaces of the substrate. Specifically, the anti-reflective coating comprises 11 layers, with SiO2 and Ti3O5 alternately stacked, from closest to the substrate outward, with thicknesses of 2500 angstroms, 50 angstroms, 800 angstroms, 50 angstroms, 2000 angstroms, 50 angstroms, 700 angstroms, 500 angstroms, 200 angstroms, 400 angstroms, and 1200 angstroms. The anti-reflective coatings are prepared using the same method as in Example 1. This structure achieves an average reflectivity of ≤0.6% for visible light within the range of 380-780 nm.

[0060] Comparative Example 1

[0061] Referring to Example 1, the difference is that the amount of purple powder used is 0, which will result in the inability to filter out some orange light, and the red light transmittance is too high, losing the effect of enhancing the contrast between light and dark, and failing to further improve the edge definition of the object.

[0062] Comparative Example 2

[0063] Referring to Example 1, the difference is that the amount of yellow powder used is 0, which will result in the inability to effectively filter part of the blue light, the green light transmittance is too high, and the function of reducing scattering, reducing glare, and improving visual clarity is lost.

[0064] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0065] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0066] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. An enhanced color reduction lens comprising a substrate, characterized in that: The substrate contains mixed color powder to adjust the transmittance of blue, green, yellow, orange and red, including a blue transmittance difference of ≥12%, a green transmittance difference of ≥20%, a yellow transmittance difference of ≥25%, an orange transmittance difference of ≥8%, and a red transmittance difference of ≥50%. The surface of the substrate is provided with an anti-reflection film layer to achieve an average reflectivity of ≤0.6% for visible light waves of 380-780nm.

2. The enhanced color reproduction lens according to claim 1, wherein: The substrate comprises, by weight, 1-10 parts of plastic rice, 0.01-0.5 parts of yellow powder, 0.01-0.5 parts of purple powder, 0.01-0.5 parts of green powder, 0.01-0.1 parts of red powder, 0.01-0.1 parts of black powder, 0.01-0.1 parts of blue powder, and 0.01-0.1 parts of orange powder.

3. The enhanced color restoration lens according to claim 2, wherein: The substrate is composed of the following components in parts by weight: 3-7 parts of plastic rice, 0.02-0.4 parts of yellow powder, 0.02-0.4 parts of purple powder, 0.02-0.4 parts of green powder, 0.02-0.4 parts of red powder, 0.03-0.07 parts of black powder, 0.01-0.07 parts of blue powder, and 0.01-0.07 parts of orange powder.

4. The enhanced color restoration lens according to any one of claims 1 to 3, characterized in that: The inner surface and the outer surface of the substrate are both provided with anti-reflection film layers.

5. The enhanced color restoration lens according to claim 4, characterized in that: The anti-reflection film layer is formed by alternately stacking a material with a refractive index of 1.85-2.4 and a material with a refractive index of 1.2-1.

5.

6. The enhanced color reproduction lens according to claim 5, characterized in that: The anti-reflection film layer has 7 to 11 layers, wherein the film layer formed by a material with a refractive index of 1.2 to 1.5 is connected to the substrate.

7. The enhanced color restoration lens according to claim 5 or 6, characterized in that: The material with a refractive index of 1.85-2.4 is one or a mixture of Ti3O5, Ta2O5, Nb2O5, and coating material H4, and the material with a refractive index of 1.2-1.5 is SiO2 or coating material L5.

8. The enhanced color reproduction lens according to claim 7, characterized in that: The anti-reflection film layer consists of 9 layers, which are alternately stacked with SiO2 and coating material H4 from close to the substrate to the outside, with thicknesses of 1000-3000 angstroms, 50-300 angstroms, 100-500 angstroms, 1000-3000 angstroms, 100-500 angstroms, 100-500 angstroms, 1000-3000 angstroms, and 500-1200 angstroms.

9. The enhanced color reproduction lens according to claim 7, characterized in that: The anti-reflection film layer consists of 11 layers, which are alternately stacked with the coating material L5 and any one of the metal oxides Ti3O5, Ta2O5, and Nb2O5 from close to the substrate to the outside, with thicknesses of 1500-2500 angstroms, 50-200 angstroms, 600-800 angstroms, 50-200 angstroms, 1000-2000 angstroms, 50-200 angstroms, 600-700 angstroms, 500-800 angstroms, 50-200 angstroms, 400-700 angstroms, and 700-1200 angstroms.

10. A method for preparing the enhanced color reduction lens according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Mix the plastic rice and color powder, stir evenly, and then bake at 90-135 ℃ for 3-5 hours; S2. The baked material is injection molded to obtain a semi-finished product; S3. The semi-finished product is cleaned and the surface is hardened, and then cured at 90-130 ℃ for 1-4 hours; S4. The cured semi-finished product is baked at 40-70 ℃ for 1-3 hours to obtain a substrate; S5. The substrate is placed in a vacuum chamber for vacuum coating to form an anti-reflective film layer on the substrate; during coating, the vacuum degree of the vacuum chamber is less than or equal to 1.5*10 -5 Torr, and control the temperature of the vacuum chamber at 15-65 ° C, use an electron gun to bombard the thin film material, and the material is evaporated and deposited on the surface of the substrate in the form of angstrom-level molecules. The evaporation rate of the material with a refractive index of 1.2-1.5 is 3- The evaporation rate of the material with a refractive index of 1.85-2.4 is 2-

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