A method for preparing a rare earth solar lens with infrared radiation protection

Abstract

The application discloses a preparation method of rare earth sunglasses with infrared radiation protection, and belongs to the technical field of sunglasses preparation. In the application, the traditional light interference superposition elimination technology of inertia thinking is broken through, military technology is used for the transformation of civilian products, one or more series of materials with the functions of absorbing infrared radiation, absorbing harmful blue light and absorbing ultraviolet radiation are found in rare earth, and a new type of light radiation protection composite film material is prepared by using nanometer composite technology. The new type of film material and auxiliary materials are deposited on resin lenses through a vacuum electron beam coating process. Under the premise of ensuring normal light transmittance, the ultraviolet radiation interception rate is above 99%, and the harmful blue light band interception rate is above 92%. In addition, compared with the sunglasses on the market, the infrared protection interception rate of the product produced by the technology is increased by more than 35%, and the protection effect on eyes is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of sunglasses manufacturing technology, specifically a method for preparing rare-earth sunglasses that protect against infrared radiation. Background Technology

[0002] As society progresses, people's demands for quality of life are constantly increasing, leading to a growing demand for eyewear, especially functional eyewear such as sunglasses and diving masks. Existing sunglasses, to avoid irritating the eyes with external light, mostly use tinted resin lenses. Sunglasses can block uncomfortable glare and protect the eyes from harmful ultraviolet rays. All of this is thanks to metal powder filters, which "selectively" absorb light as it enters. Tinted lenses selectively absorb specific wavelengths of sunlight because they utilize very fine metal powders (iron, copper, nickel, etc.). In fact, when light hits the lens, it is reduced based on a process called "destructive interference."

[0003] However, traditional sunglasses often use light interference superposition and elimination technology, resulting in poor light transmission in low-light conditions, making them inconvenient to use. Furthermore, their interception rates for ultraviolet radiation and harmful blue light are not high enough. Summary of the Invention

[0004] The purpose of this invention is to provide a method for preparing rare-earth sunglasses that protects against infrared radiation in order to solve the problems mentioned above.

[0005] The technical solution adopted in this invention is as follows: A method for preparing rare-earth sunglasses with protection against infrared radiation, comprising the following steps:

[0006] S1: First, weigh the raw materials for preparing rare earth sunglasses: 74.93g cobalt oxide, 20.35g zinc oxide, 45.47g vanadium pentoxide, 95.63g erbium oxide, 60.08g silicon dioxide, and 43.03g cerium oxide.

[0007] S2: First, the 74.93g cobalt oxide, 20.35g zinc oxide, 45.47g vanadium pentoxide, 95.63g erbium oxide, 60.08g silicon dioxide, and 43.03g cerium oxide weighed in step S1 are mixed and stirred. The mixed material is then granulated using a high-pressure molding machine to obtain a mixed material with a particle size range of 2-3mm.

[0008] S3: The mixed granular material from step S2 is sintered in a high-temperature sintering furnace to further improve the density of the granular material.

[0009] S4: Vacuum seal the sintered material from step S3 for later use;

[0010] S5: Select a 1mm resin eyeglass substrate and place it on a special fixture for ultrasonic cleaning.

[0011] S6: Placed in a vacuum chamber for vacuum evaporation electroplating. Inside the electroplating chamber, light radiation absorbing film, hardening film (silicon carbide), and waterproof film are placed. The absorption film electroplating is completed first according to the preset program, with the film thickness controlled at 90-150nm. Then, the hardening film is electroplated automatically under vacuum, with a film thickness of 35nm. Finally, the waterproof film electroplating is completed.

[0012] S7: Flip the lens substrate so that the convex side faces down, and place it in the vacuum chamber for a second convex coating operation. Anti-reflective coating material, hardening film material, and waterproof film material are pre-placed in the electroplating chamber. The anti-reflective coating layer is deposited sequentially according to the set order, with a thickness of 120nm; the hardening film layer has a thickness of 35nm; and finally, the waterproof film layer electroplating operation is completed.

[0013] S8: After the product passes inspection, the rare earth sunglasses are packaged and shipped, thus completing the entire manufacturing process of rare earth sunglasses with infrared radiation protection. In this invention, we break away from the conventional light interference superposition elimination technology and utilize military technology to transform it into civilian products. We search for one or more materials in rare earths that can absorb infrared radiation, harmful blue light, and ultraviolet radiation. We use nanocomposite technology to prepare a new type of protective light radiation composite film. The prepared new film and auxiliary materials are deposited on the resin lens through a vacuum electron beam coating process. Under the premise of ensuring normal light transmittance, the ultraviolet radiation interception rate reaches more than 99%, and the harmful blue light band interception rate reaches more than 92%. In addition, compared with sunglasses sold on the market, the infrared protection interception rate of the products produced by this technology is increased by more than 35%, which greatly improves the protection of the eyes.

[0014] In a preferred embodiment, in step S2, when mixing and stirring the cobalt oxide, zinc oxide, vanadium pentoxide, erbium oxide, silicon dioxide and cerium oxide weighed in step S1, the stirring speed is controlled at 500 r / min and the stirring time is controlled at 60 min.

[0015] In a preferred embodiment, in step S3, the mixed particulate material from step S2 is sintered in a high-temperature sintering furnace at 1200°C for 3 hours.

[0016] In a preferred embodiment, during step S4, when the sintered material from step S3 is vacuum-sealed for later use, the storage temperature is controlled at 50–60°C.

[0017] In a preferred embodiment, during step S5, the concave side of the eyeglasses substrate is placed downwards during the process of placing the eyeglasses substrate in the special fixture.

[0018] In a preferred embodiment, in step S6, the hardening film material is silicon carbide.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] This invention breaks away from conventional optical interference superposition elimination technology and utilizes military technology for civilian product transformation. It seeks one or more materials in rare earth elements that absorb infrared radiation, harmful blue light, and ultraviolet radiation. A novel protective composite film is prepared using nanocomposite technology. This novel film and auxiliary materials are deposited on resin lenses using a vacuum electron beam deposition process. While maintaining normal light transmittance, the ultraviolet radiation interception rate reaches over 99%, and the harmful blue light interception rate reaches over 92%. Furthermore, compared to sunglasses sold on the market, the infrared protection interception rate of products produced using this technology is increased by over 35%, significantly improving eye protection. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the product layer structure of the present invention;

[0022] Figure 2 This is a production flow diagram of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] Reference Figure 1-2 ,

[0025] Example 1:

[0026] A method for preparing rare-earth sunglasses with infrared radiation protection includes the following steps:

[0027] S1: First, weigh the raw materials for preparing rare earth sunglasses: 74.93g cobalt oxide, 20.35g zinc oxide, 45.47g vanadium pentoxide, 95.63g erbium oxide, 60.08g silicon dioxide, and 43.03g cerium oxide.

[0028] S2: First, the 74.93g cobalt oxide, 20.35g zinc oxide, 45.47g vanadium pentoxide, 95.63g erbium oxide, 60.08g silicon dioxide, and 43.03g cerium oxide weighed in step S1 are mixed and stirred. The mixed material is then granulated using a high-pressure molding machine to obtain a mixed material with a particle size range of 2-3mm.

[0029] S3: The mixed granular material from step S2 is sintered in a high-temperature sintering furnace to further improve the density of the granular material.

[0030] S4: Vacuum seal the sintered material from step S3 for later use;

[0031] S5: Select a 1mm resin eyeglass substrate and place it on a special fixture for ultrasonic cleaning.

[0032] S6: Placed in a vacuum chamber for vacuum evaporation electroplating. Inside the electroplating chamber, light radiation absorbing film, hardening film (silicon carbide), and waterproof film are placed. The absorption film electroplating is completed first according to the preset program, with the film thickness controlled at 90-150nm. Then, the hardening film is electroplated automatically under vacuum, with a film thickness of 35nm. Finally, the waterproof film electroplating is completed.

[0033] S7: Flip the lens substrate so that the convex side faces down, and place it in the vacuum chamber for a second convex coating operation. Anti-reflective coating material, hardening film material and waterproof film material are pre-placed in the electroplating chamber. The anti-reflective coating layer with a thickness of 90nm is deposited in sequence according to the set order, followed by the hardening film layer with a thickness of 35nm. Finally, the waterproof film layer electroplating operation is completed.

[0034] S8: After the product passes inspection, the rare earth sunglasses are packaged and shipped, thus completing the entire process of manufacturing rare earth sunglasses that protect against infrared radiation.

[0035] In step S2, when mixing and stirring the cobalt oxide, zinc oxide, vanadium pentoxide, erbium oxide, silicon dioxide and cerium oxide weighed in step S1, the stirring speed is controlled at 500 r / min and the stirring time is controlled at 60 min.

[0036] In step S3, the mixed granular material from step S2 is sintered in a high-temperature sintering furnace at 1200°C for 3 hours.

[0037] In step S4, during the process of vacuum sealing and storing the sintered material from step S3 for later use, the storage temperature is controlled at 50-60℃.

[0038] In step S5, during the process of placing the eyeglass substrate in the special fixture, the concave side of the eyeglass substrate faces downwards.

[0039] In step S6, the hardening film material is silicon carbide.

[0040] The rare-earth sunglasses produced have a surface reflectivity of 5.1%, a surface hardness of 5H, a harmful blue light filtering and interception rate of 90%, an ultraviolet light radiation interception rate of over 99%, and an infrared light radiation absorption and interception rate of over 40%. They offer high visual comfort when worn and fulfill the function of sunglasses in providing efficient protection against light radiation.

[0041] Example 2:

[0042] A method for preparing rare-earth sunglasses with infrared radiation protection includes the following steps:

[0043] S1: First, weigh the raw materials for preparing rare earth sunglasses: 74.93g cobalt oxide, 20.35g zinc oxide, 45.47g vanadium pentoxide, 95.63g erbium oxide, 60.08g silicon dioxide, and 43.03g cerium oxide.

[0044] S2: First, the 74.93g cobalt oxide, 20.35g zinc oxide, 45.47g vanadium pentoxide, 95.63g erbium oxide, 60.08g silicon dioxide, and 43.03g cerium oxide weighed in step S1 are mixed and stirred. The mixed material is then granulated using a high-pressure molding machine to obtain a mixed material with a particle size range of 2-3mm.

[0045] S3: The mixed granular material from step S2 is sintered in a high-temperature sintering furnace to further improve the density of the granular material.

[0046] S4: Vacuum seal the sintered material from step S3 for later use;

[0047] S5: Select a 1mm resin eyeglass substrate and place it on a special fixture for ultrasonic cleaning.

[0048] S6: Placed in a vacuum chamber for vacuum evaporation electroplating. Inside the electroplating chamber, light radiation absorbing film, hardening film (silicon carbide), and waterproof film are placed. The absorption film electroplating is completed first according to the preset program, with the film thickness controlled at 90-150nm. Then, the hardening film is electroplated automatically under vacuum, with a film thickness of 35nm. Finally, the waterproof film electroplating is completed.

[0049] S7: Flip the lens substrate so that the convex side faces down, and place it in the vacuum chamber for a second convex coating operation. Anti-reflective coating material, hardening film material, and waterproof film material are pre-placed in the electroplating chamber. The anti-reflective coating layer is deposited sequentially according to the set order, with a thickness of 120nm; the hardening film layer has a thickness of 35nm; and finally, the waterproof film layer electroplating operation is completed.

[0050] S8: After the product passes inspection, the rare earth sunglasses are packaged and shipped, thus completing the entire process of manufacturing rare earth sunglasses that protect against infrared radiation.

[0051] In step S2, when mixing and stirring the cobalt oxide, zinc oxide, vanadium pentoxide, erbium oxide, silicon dioxide and cerium oxide weighed in step S1, the stirring speed is controlled at 500 r / min and the stirring time is controlled at 60 min.

[0052] In step S3, the mixed granular material from step S2 is sintered in a high-temperature sintering furnace at 1200°C for 3 hours.

[0053] In step S4, during the process of vacuum sealing and storing the sintered material from step S3 for later use, the storage temperature is controlled at 50-60℃.

[0054] In step S5, during the process of placing the eyeglass substrate in the special fixture, the concave side of the eyeglass substrate faces downwards.

[0055] In step S6, the hardening film material is silicon carbide.

[0056] The rare-earth sunglasses produced have a surface reflectivity of 5.1%, a surface hardness of 5H, a harmful blue light filtering and interception rate of 90%, an ultraviolet light radiation interception rate of over 99%, and an infrared light radiation absorption and interception rate of over 40%. They offer high visual comfort when worn and fulfill the function of sunglasses in providing efficient protection against light radiation.

[0057] Example 3:

[0058] A method for preparing rare-earth sunglasses with infrared radiation protection includes the following steps:

[0059] S1: First, weigh the raw materials for preparing rare earth sunglasses: 74.93g cobalt oxide, 20.35g zinc oxide, 45.47g vanadium pentoxide, 95.63g erbium oxide, 60.08g silicon dioxide, and 43.03g cerium oxide.

[0060] S2: First, the 74.93g cobalt oxide, 20.35g zinc oxide, 45.47g vanadium pentoxide, 95.63g erbium oxide, 60.08g silicon dioxide, and 43.03g cerium oxide weighed in step S1 are mixed and stirred. The mixed material is then granulated using a high-pressure molding machine to obtain a mixed material with a particle size range of 2-3mm.

[0061] S3: The mixed granular material from step S2 is sintered in a high-temperature sintering furnace to further improve the density of the granular material.

[0062] S4: Vacuum seal the sintered material from step S3 for later use;

[0063] S5: Select a 1mm resin eyeglass substrate and place it on a special fixture for ultrasonic cleaning.

[0064] S6: Placed in a vacuum chamber for vacuum evaporation electroplating. Inside the electroplating chamber, light radiation absorbing film, hardening film (silicon carbide), and waterproof film are placed. The absorption film electroplating is completed first according to the preset program, with the film thickness controlled at 90-150nm. Then, the hardening film is electroplated automatically under vacuum, with a film thickness of 35nm. Finally, the waterproof film electroplating is completed.

[0065] S7: Flip the lens substrate so that the convex side faces down, and place it in the vacuum chamber for a second convex coating operation. Anti-reflective coating material, hardening film material, and waterproof film material are pre-placed in the electroplating chamber. The anti-reflective coating layer with a thickness of 150nm is deposited sequentially according to the set order, followed by the hardening film layer with a thickness of 35nm. Finally, the waterproof film layer electroplating operation is completed.

[0066] S8: After the product passes inspection, the rare earth sunglasses are packaged and shipped, thus completing the entire process of manufacturing rare earth sunglasses that protect against infrared radiation.

[0067] In step S2, when mixing and stirring the cobalt oxide, zinc oxide, vanadium pentoxide, erbium oxide, silicon dioxide and cerium oxide weighed in step S1, the stirring speed is controlled at 500 r / min and the stirring time is controlled at 60 min.

[0068] In step S3, the mixed granular material from step S2 is sintered in a high-temperature sintering furnace at 1200°C for 3 hours.

[0069] In step S4, during the process of vacuum sealing and storing the sintered material from step S3 for later use, the storage temperature is controlled at 50-60℃.

[0070] In step S5, during the process of placing the eyeglass substrate in the special fixture, the concave side of the eyeglass substrate faces downwards.

[0071] In step S6, the hardening film material is silicon carbide.

[0072] The rare-earth sunglasses produced have a surface reflectivity of 5.1%, a surface hardness of 5H, a harmful blue light filtering and interception rate of 90%, an ultraviolet light radiation interception rate of over 99%, and an infrared light radiation absorption and interception rate of over 40%. They offer high visual comfort when worn and fulfill the function of sunglasses in providing efficient protection against light radiation.

[0073] This invention breaks away from conventional optical interference superposition elimination technology and utilizes military technology for civilian product transformation. It seeks one or more materials in rare earth elements that absorb infrared radiation, harmful blue light, and ultraviolet radiation. A novel protective composite film is prepared using nanocomposite technology. This novel film and auxiliary materials are deposited on resin lenses using a vacuum electron beam deposition process. While maintaining normal light transmittance, the ultraviolet radiation interception rate reaches over 99%, and the harmful blue light interception rate reaches over 92%. Furthermore, compared to sunglasses sold on the market, the infrared protection interception rate of products produced using this technology is increased by over 35%, significantly improving eye protection.

[0074] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0075] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for preparing rare-earth sunglasses with infrared radiation protection, characterized in that: The process includes the following steps: S1: First, weigh the raw materials for preparing rare earth sunglasses: 74.93g cobalt oxide, 20.35g zinc oxide, 45.47g vanadium pentoxide, 95.63g erbium oxide, 60.08g silicon dioxide, and 43.03g cerium oxide. S2: First, the 74.93g cobalt oxide, 20.35g zinc oxide, 45.47g vanadium pentoxide, 95.63g erbium oxide, 60.08g silicon dioxide, and 43.03g cerium oxide weighed in step S1 are mixed and stirred. The mixed material is then granulated using a high-pressure molding machine to obtain a mixed material with a particle size range of 2-3mm. S3: The mixed granular material from step S2 is sintered in a high-temperature sintering furnace to further improve the density of the granular material. S4: Vacuum seal the sintered material from step S3 for later use; S5: Select a 1mm resin eyeglass substrate and place it on a special fixture for ultrasonic cleaning. S6: Placed in a vacuum chamber for vacuum evaporation electroplating. The electroplating chamber contains light radiation absorbing film, hardening film, and waterproof film. The absorption film electroplating is completed first according to the preset program, with the film thickness controlled at 90~150nm. Then, the hardening film is electroplated automatically under vacuum, with a film thickness of 35nm. Finally, the waterproof film electroplating is completed. S7: Flip the lens substrate so that the convex side is facing down, and place it in the vacuum chamber for the second time to perform the convex coating operation. The anti-reflection and anti-reflection film, the hardening film and the waterproof film are placed in the electroplating chamber in advance. The anti-reflection and anti-reflection film is deposited in sequence according to the set order. The film thickness is 120nm, the hardening film is 35nm, and finally the waterproof film electroplating operation is completed. S8: After the product passes inspection, the rare earth sunglasses are packaged and shipped, thus completing the entire process of manufacturing rare earth sunglasses that protect against infrared radiation.

2. The method for preparing rare-earth sunglasses with infrared radiation protection as described in claim 1, characterized in that: In step S2, when mixing and stirring the cobalt oxide, zinc oxide, vanadium pentoxide, erbium oxide, silicon dioxide and cerium oxide weighed in step S1, the stirring speed is controlled at 500 r / min and the stirring time is controlled at 60 min.

3. The method for preparing rare-earth sunglasses with infrared radiation protection as described in claim 1, characterized in that: In step S3, the mixed particulate material from step S2 is sintered in a high-temperature sintering furnace at 1200°C for 3 hours.

4. The method for preparing rare-earth sunglasses with infrared radiation protection as described in claim 1, characterized in that: In step S4, during the process of vacuum sealing and storing the sintered material from step S3 for later use, the storage temperature is controlled at 50~60℃.

5. The method for preparing rare-earth sunglasses with infrared radiation protection as described in claim 1, characterized in that: In step S5, during the process of placing the eyeglass substrate in the special fixture, the concave side of the eyeglass substrate faces downwards.

6. The method for preparing rare-earth sunglasses with infrared radiation protection as described in claim 1, characterized in that: In step S6, the hardening film material is silicon carbide.

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