High-temperature-resistant coated lens

Abstract

The utility model discloses a kind of high-temperature-resistant coated lenses, with substrate layer, hard wear-resistant layer, high-temperature-resistant composite film layer, waterproof layer and oil-proof layer;In the inside and outside of substrate layer, each is provided with a layer of hard wear-resistant layer;A layer of high-temperature-resistant composite film layer is set on the surface of hard wear-resistant layer;High-temperature-resistant composite film layer is composed of primer layer, first film layer and second film layer, primer layer is SiO2 bottom film, first film layer is formed by SiO2 film layer and Al2O3 film layer alternately superimposed, second film layer is ZrO2 film layer, primer layer is formed on the surface of hard wear-resistant layer, first film layer and second film layer are alternately superimposed on the surface of primer layer again and the outermost layer is first film layer, form high-temperature-resistant composite film layer;A layer of waterproof layer is set on the surface of high-temperature-resistant composite film layer;A layer of oil-proof layer is set on the surface of waterproof layer.This structure makes that lens film layer does not appear burst film, film cracking phenomenon under high-temperature environment, improves service life, reduces the replacement frequency and cost of user, can more protect the vision health of wearer, improves its use experience.

Description

Technical Field

[0001] This utility model relates to the technical field of lenses, and in particular to the structure of a high-temperature resistant coated lens. Background Technology

[0002] While current optical coatings can optimize core optical parameters such as light transmittance and reflectivity to some extent, their shortcomings in high-temperature resistance are becoming increasingly apparent. Existing mainstream coating processes, whether vacuum evaporation, magnetron sputtering, or ion plating, struggle to maintain the adhesion between the coating layer and the lens substrate, as well as the stability of the coating's microstructure, under high-temperature conditions. When the temperature rises to a certain level, the difference in thermal expansion coefficients between the coating layer and the substrate is amplified, leading to a sharp increase in interfacial stress and subsequently causing problems such as blistering and cracking. Simultaneously, high temperatures can also cause oxidation, decomposition, or changes in the crystallization state of the coating material, disrupting its uniformity and ultimately causing the coating to peel off. These failure phenomena not only cause irreversible deterioration of the lens's optical parameters, leading to blurred images and increased glare, but also directly affect the operational stability of the entire optical system. In summary, the existing lens coatings have weak adhesion to the lens substrate, and the microstructure stability of the coating is difficult to maintain under high temperature conditions. This results in a short lens lifespan, frequent replacements by users, high usage costs, and is detrimental to protecting the wearer's visual health, leading to a poor user experience. Utility Model Content

[0003] The purpose of this invention is to provide a high-temperature resistant coated lens that fundamentally solves the problem of insufficient high-temperature resistance of ordinary coated lenses. The lens coating will not crack or burst under high-temperature conditions, thus extending the lens's lifespan, reducing the frequency and cost of replacement for users, better protecting the wearer's visual health, and enhancing their user experience.

[0004] To achieve the above objectives, the solution of this utility model is: A high-temperature resistant coated lens comprises a base layer, a hardened abrasion-resistant layer, a high-temperature resistant composite film layer, a waterproof layer, and an oil-resistant layer. A hardened abrasion-resistant layer is attached to both the inner and outer sides of the base layer. A high-temperature resistant composite film layer is vacuum-deposited onto the surfaces of the inner and outer hardened abrasion-resistant layers. The high-temperature resistant composite film layer consists of a base layer, a first film layer, and a second film layer. The base layer is a SiO2 base film. The first film layer is composed of alternating layers of SiO2 and Al2O3 films. The second film layer is a ZrO2 film layer. The base layer is formed on the surface of the hardened abrasion-resistant layer. The first and second film layers are then alternately superimposed on the surface of the base layer, with the outermost layer being the first film layer, forming the high-temperature resistant composite film layer. A waterproof layer is vacuum-deposited onto the surfaces of the inner and outer high-temperature resistant composite film layers. An oil-resistant layer is vacuum-deposited onto the surfaces of the inner and outer waterproof layers.

[0005] The base layer is made of polycarbonate (PC).

[0006] The thickness of the base layer is 1.5-2.5 mm.

[0007] The hardened wear-resistant layer is formed by adhering and fixing with a strengthening and hardening liquid.

[0008] The thickness of the hardened wear-resistant layer is 3-8µm.

[0009] The thickness of the high-temperature resistant composite film is 110-200 nm.

[0010] In the high-temperature resistant composite film layer, the thickness of the bottom layer is 30-50nm, the thickness of the first film layer is 25-85nm, the thickness of the second film layer is 15-110nm, and the first film layer and the second film layer are alternately superimposed twice.

[0011] In the first layer of the high-temperature resistant composite film, the thickness of the SiO2 film is 29-77 nm, the thickness of the Al2O3 film is 1-5 nm, and the SiO2 film and the Al2O3 film are alternately superimposed twice.

[0012] In the first layer of the high-temperature resistant composite film, the weight ratio of the SiO2 film layer to the Al2O3 film layer is 97:3.

[0013] The thickness of the waterproof layer is 8-15 nm.

[0014] The thickness of the oil-resistant layer is 8-15 nm.

[0015] By adopting the above structure, this invention provides a hardened and wear-resistant layer on the base layer, giving the lens a wear-resistant and scratch-resistant effect. A high-temperature resistant composite film layer with a base layer is incorporated, and the combination of the base layer and the hardened and wear-resistant layer ensures a firm bond between the subsequent high-temperature resistant composite film layer and the lens. The high-temperature resistant composite film layer utilizes alternating layers of SiO2 and Al2O3 films to form the first film layer, which is then alternately layered with a second film layer, with the outermost layer being the first film layer, forming a dense high-temperature resistant coating structure. This fundamentally solves the problem of insufficient high-temperature resistance in ordinary coated lenses. The resulting lens can withstand temperatures of 80°C or even higher, and the coating layer will not crack or break under high temperatures, thereby extending the lens's lifespan, reducing the frequency and cost of replacement for users, better protecting the wearer's visual health, and improving their user experience. From an industry perspective, the successful development of this high-temperature resistant coated lens will fill the market gap for high-temperature resistant coated lenses, meet the growing consumer demand, and enhance the market competitiveness of related products. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A magnified view of a portion of the image; Figure 3 This is a schematic diagram of the high-temperature resistant composite film structure of this utility model; Figure 4 This is a schematic diagram of the first membrane structure of this utility model; Figure 5 This is a spectral transmittance curve of the product of this utility model at room temperature; Figure 6 This is a spectral transmittance curve of the product of this utility model at 60℃; Figure 7 This is a spectral transmittance curve of the product of this utility model at 80℃.

[0017] Label Explanation Basal layer 1; Hardened wear-resistant layer 2; High-temperature resistant composite film layer 3, bottom layer 31, first film layer 32, SiO2 film layer 321, Al2O3 film layer 322, second film layer 33; Waterproof layer 4; Oil-resistant layer 5. Detailed Implementation

[0018] See Figure 1-4 As shown, the present invention discloses a high-temperature resistant coated lens, which has a base layer 1, a hardened wear-resistant layer 2, a high-temperature resistant composite film layer 3, a waterproof layer 4, and an oil-proof layer 5.

[0019] The base layer 1 can be made of lens materials such as polycarbonate (PC). The thickness of the base layer 1 can be controlled to be 1.5-2.5 mm as needed.

[0020] A hardened abrasion-resistant layer 2 is attached to both the inner and outer sides of the base layer 1. Specifically, the hardened abrasion-resistant layer 2 can be made of a strengthening and hardening liquid, which is applied to the base layer 1 by a lifting and immersion method, forming the hardened abrasion-resistant layer 2 after fixation, thus giving the lens abrasion and scratch-resistant effect. The thickness of the hardened abrasion-resistant layer 2 is controlled to be 3-8µm.

[0021] A high-temperature resistant composite film layer 3 is vacuum-deposited on both the inner and outer surfaces of the hardened and wear-resistant layer 2 to give the lens high-temperature resistance. The high-temperature resistant composite film layer 3 consists of a base layer 31, a first film layer 32, and a second film layer 33. The base layer 31 is a SiO2 base film, the first film layer 32 is composed of alternating layers of SiO2 film layer 321 and Al2O3 film layer 322, and the second film layer 33 is a ZrO2 film layer. The base layer 31 is first vacuum-deposited on the surface of the hardened and wear-resistant layer 2. The bonding between the base layer 31 and the hardened and wear-resistant layer 2 ensures a strong bond between the subsequent high-temperature resistant composite film layer 3 and the lens substrate layer 1. The first film layer 32 and the second film layer 33 are then vacuum-deposited on the surface of the base layer 31, with the first film layer 32 being the outermost layer, forming the high-temperature resistant composite film layer 3. The total thickness of the high-temperature resistant composite film layer 3 is controlled to be 110-200 nm. In the high-temperature resistant composite film layer 3, the thickness of the base layer 31 is controlled to be 30-50 nm, the thickness of the first film layer 32 is 25-85 nm, and in the first film layer 32, the thickness of the SiO2 film layer 321 is controlled to be 29-77 nm, and the thickness of the Al2O3 film layer 322 is controlled to be 1-5 nm. The SiO2 film layer 321 and the Al2O3 film layer 322 are alternately stacked twice. Furthermore, the weight ratio of the SiO2 film layer 321 to the Al2O3 film layer 322 in the first film layer 32 can be controlled to be 97:3. The thickness of the second film layer 33 is controlled to be 15-110 nm, and the first and second film layers are alternately stacked twice. This results in a dense high-temperature resistant composite film layer 3, enabling the lens to withstand high-temperature environments of 80°C or even higher, and preventing the film layer from cracking or bursting under high-temperature conditions.

[0022] A waterproof layer 4 is vacuum-deposited on the inner and outer surfaces of the high-temperature resistant composite film layer 3 to provide waterproofing; the thickness of the waterproof layer 4 is controlled to be 8-15 nm.

[0023] An oil-resistant layer 5 is vacuum-deposited on the inner and outer surfaces of the waterproof layer 4 to prevent oil damage; the thickness of the oil-resistant layer 5 is 8-15 nm.

[0024] The actual manufacturing process of the high-temperature resistant coated lens of this utility model, taking PC lens as an example, involves the following steps: S1, Fabrication of Base Layer 1: PC plastic granules are dehumidified and injection molded to form the base layer 1 of the lens, with an injection molding thickness of 1.5-2.5mm.

[0025] S2, Fabrication of the hardened wear-resistant layer 2: The base layer 1 is immersed in a hardening and strengthening liquid. By lifting and soaking, a layer of hardening and strengthening liquid is attached to both the inner and outer sides of the base layer 1. After curing, an outer hardened abrasion-resistant layer 2 and an inner hardened abrasion-resistant layer 2 are formed, each with a thickness of 3-8μm, giving the lens abrasion-resistant and scratch-resistant effect.

[0026] S3, Fabrication of high-temperature resistant composite film layer 3: High-temperature resistant composite film 3 is vacuum-deposited on the inner and outer sides of the hardened wear-resistant layer 2, giving the lens a high-temperature resistant effect.

[0027] The high-temperature resistant composite film layer 3 has a SiO2 base layer 31, a first film layer 32 (SiO2 film layer 321 + Al2O3 film layer 322 are alternately stacked), and a ZrO2 second film layer 33.

[0028] First, a base layer 31 is formed by vacuum evaporation on the surface of the hardened wear-resistant layer 2. Then, a first film layer 32 and a second film layer 33 are alternately superimposed twice by vacuum evaporation on the surface of the base layer 31. The first film layer 32 is also formed by vacuum evaporation of a SiO2 film layer 321 and an Al2O3 film layer 322, with the outermost layer being the first film layer 32. That is, two layers of the first film layer 32 and two layers of the second film layer 33 can be alternately superimposed on the base layer 31 with the outermost layer being the first film layer 32. Alternatively, three layers of the first film layer 32 and two layers of the second film layer 33 can be alternately superimposed on the base layer 31 with the outermost layer being the first film layer 32.

[0029] During vacuum evaporation, the thickness of the underlayer 31 is controlled to be 30-50 nm, the thickness of the first film layer is 25-85 nm, the thickness of the SiO2 film layer 321 is controlled to be 29-77 nm, the thickness of the Al2O3 film layer 322 is controlled to be 1-5 nm, the weight ratio of SiO2 film layer 321 to Al2O3 film layer 322 in the first film layer 32 can be controlled to be 97:3, the thickness of the second film layer 33 is controlled to be 15-110 nm, and the total thickness of the high-temperature resistant composite film layer 3 is controlled to be 110-200 nm. This process yields a dense high-temperature resistant composite film layer 3, enabling the lens to withstand high-temperature environments above 80°C.

[0030] Table 1 shows the film thickness and process parameters for specific embodiments.

[0031] S4, Waterproofing Layer 4 Construction: A waterproof layer 4 is vacuum-deposited on the surface of the inner and outer high-temperature resistant composite membrane layer 3 to provide waterproofing. The membrane layer thickness is 8-15nm.

[0032] S5, Waterproof Layer 5 Construction: An oil-resistant layer 5 is vacuum-deposited on the surface of the inner and outer waterproof layers 4 to prevent oil damage. The thickness of the film layer is 8-15nm.

[0033] Thus, the high-temperature resistant coated lens product of this utility model is obtained.

[0034] The finished product of this utility model has been tested, and as follows: Figure 5 , Figure 6 , Figure 7 As shown, the light transmittance of the lens can reach over 90% at room temperature, 60℃ high temperature, and 80℃ high temperature, with almost no impact on light transmittance.

[0035] The finished lens of this invention is placed on a rack in an "electrically heated constant temperature water bath" with the water temperature set to 80℃ and maintained at the corresponding humidity for 24 hours. Then it is removed and left at room temperature for 30 minutes. After cleaning and drying the lens, 11 horizontal and 11 vertical lines are made on the surface of the lens with a blade, that is, 100 lines are made with a spacing of 1mm. 2 Small squares were drawn, and 3M tape was used to adhere to the marked areas and flattened. Air between the tape and the lens surface was squeezed out. After 1 minute, the tape was quickly peeled off; the coating layers (hardened abrasion-resistant layer 2 and high-temperature resistant composite film layer 3, etc.) did not peel off. The lenses were then kept in an oven at 60℃ and 80℃ for 72 hours respectively. After removal and 30 minutes at room temperature, the adhesion between the lens coating and the lens substrate was observed under a 30W fluorescent lamp; no cracking or peeling was observed. The haze value of the lens was measured to be ≤1% using a haze detector. Abrasion resistance testing showed that the lens could withstand 30 cycles of rubbing with 0000# steel wool and a 500g weight. The lens surface showed no obvious scratches under 30W fluorescent lamp / black background conditions.

[0036] Table 2 shows the high-temperature test report for high-temperature resistant coated lenses.

[0037] The above description is merely an example of the implementation of this utility model and is not intended to limit the scope of protection of this utility model. It should be noted that any equivalent changes made by those skilled in the art after reading this specification, based on the design concept of this case, shall fall within the scope of protection of this case.

Claims

1. A high-temperature resistant coated lens, characterized in that: It comprises a base layer, a hardened wear-resistant layer, a high-temperature resistant composite film layer, a waterproof layer, and an oil-resistant layer. A hardened wear-resistant layer is attached to both the inner and outer sides of the base layer. A high-temperature resistant composite film layer is vacuum-deposited on the surfaces of the inner and outer hardened wear-resistant layers. The high-temperature resistant composite film layer consists of a base layer, a first film layer, and a second film layer. The base layer is a SiO2 film, the first film layer is composed of alternating layers of SiO2 and Al2O3 films, and the second film layer is a ZrO2 film layer. The base layer is formed on the surface of the hardened wear-resistant layer, and then the first and second film layers are alternately stacked on the surface of the base layer, with the outermost layer being the first film layer, forming the high-temperature resistant composite film layer. A waterproof layer is vacuum-deposited on the surfaces of the inner and outer high-temperature resistant composite film layers. An oil-resistant layer is vacuum-deposited on the surfaces of the inner and outer waterproof layers.

2. The high-temperature resistant coated lens as described in claim 1, characterized in that: The base layer is made of polycarbonate (PC).

3. The high-temperature resistant coated lens as described in claim 1, characterized in that: The thickness of the base layer is 1.5-2.5 mm.

4. The high-temperature resistant coated lens as described in claim 1, characterized in that: The hardened wear-resistant layer is formed by attaching and fixing with a strengthening and hardening liquid, and the thickness of the hardened wear-resistant layer is 3-8µm.

5. The high-temperature resistant coated lens as described in claim 1, characterized in that: The thickness of the high-temperature resistant composite film is 110-200 nm.

6. The high-temperature resistant coated lens as described in claim 1, characterized in that: In the high-temperature resistant composite film layer, the thickness of the bottom layer is 30-50nm, the thickness of the first film layer is 25-85nm, the thickness of the second film layer is 15-110nm, the first film layer and the second film layer are alternately superimposed twice, and the outermost layer is the first film layer.

7. The high-temperature resistant coated lens as described in claim 1, characterized in that: In the first layer of the high-temperature resistant composite film, the thickness of the SiO2 film is 29-77 nm, the thickness of the Al2O3 film is 1-5 nm, and the SiO2 film and the Al2O3 film are alternately superimposed twice.

8. A high-temperature resistant coated lens as described in claim 1, characterized in that: In the first layer of the high-temperature resistant composite film, the weight ratio of the SiO2 film layer to the Al2O3 film layer is 97:

3.

9. A high-temperature resistant coated lens as described in claim 1, characterized in that: The thickness of the waterproof layer is 8-15 nm.

10. A high-temperature resistant coated lens as described in claim 1, characterized in that: The thickness of the oil-resistant layer is 8-15 nm.

Images