A wear-resistant and scratch-resistant car window lens

Abstract

This utility model discloses a wear-resistant and scratch-resistant carport lens, comprising: a lens substrate, on the outer side of which a transition layer, an anti-reflective layer, a core wear-resistant layer, an anti-fog layer, and a surface protective layer are sequentially stacked; the core wear-resistant layer has a grid-like reinforcing rib, and hemispherical micro-protrusion structures are set in the gaps of the grid-like reinforcing rib; the base of the hemispherical micro-protrusion structure is integrally connected with the grid-like reinforcing rib, and its hemispherical protrusion portion is embedded in and penetrates the anti-fog layer, with the highest point of the hemispherical protrusion portion contacting the inner surface of the surface protective layer. This utility model, through the grid-like reinforcing rib and the hemispherical micro-protrusion structure, significantly improves the wear and scratch resistance of the lens surface, while ensuring the durability of the anti-fog function and excellent optical performance, resulting in superior overall performance and a long service life.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts, specifically, it relates to a wear-resistant and scratch-resistant car window lens. Background Technology

[0002] Customized lenses for car and garage applications are crucial products for meeting individualized vision correction needs, and their performance directly impacts the user's visual experience and wearing safety. However, while existing car and garage lenses strive for thinness and high optical performance, the durability of their surface functional coatings remains a challenge.

[0003] Currently, mainstream high-end lenses typically consist of a composite coating layer consisting of an anti-reflective coating and a top coating, sequentially deposited on the substrate. The anti-reflective coating effectively reduces light reflection and improves light transmittance, but its material is usually relatively soft and lacks mechanical strength. To improve abrasion resistance, the industry often applies a hard top coating, such as a silane-based coating, on top of the anti-reflective coating. However, the adhesion between this hard top coating and the underlying coating layer is limited. Under frequent wiping or scratching by hard objects, micro-cracks or even peeling can easily occur, leading to the failure of the anti-reflective effect and a decrease in lens transmittance. Furthermore, to meet the needs of specific environments, many lenses are coated with an anti-fog layer. However, traditional anti-fog layers are usually softer and have poor adhesion, making them not only easily worn away but also potentially weakening the mechanical stability of the entire coating system, resulting in a decrease in the overall abrasion and scratch resistance of the lens and a shortened lifespan.

[0004] Therefore, there is an urgent need in the existing technology to provide a new type of car window lens structure that can fundamentally enhance the bonding force between film layers and the mechanical strength of the overall structure without sacrificing optical performance and anti-fog function, thereby achieving excellent and durable wear and scratch resistance. Utility Model Content

[0005] In view of this, the technical problem to be solved by this utility model is to provide a wear-resistant and scratch-resistant car room lens that solves the problems of weak film adhesion, easy wear and scratching, and short-lasting anti-fog properties. By setting grid reinforcing ribs and hemispherical protrusions in the core wear-resistant layer, the wear resistance, anti-fog durability and service life are significantly improved.

[0006] To solve the above-mentioned technical problems, this utility model discloses a wear-resistant and scratch-resistant carport lens, comprising: a lens substrate, on the outer side of which a transition layer, an anti-reflection layer, a core wear-resistant layer, an anti-fog layer, and a surface protective layer are sequentially stacked; the core wear-resistant layer is provided with a grid-like reinforcing rib, and a hemispherical micro-protrusion structure is provided in the gap of the grid-like reinforcing rib; the base of the hemispherical micro-protrusion structure is integrally connected with the grid-like reinforcing rib, and the hemispherical protrusion is embedded in and penetrates the anti-fog layer, and the highest point of the hemispherical protrusion is in contact with the inner surface of the surface protective layer.

[0007] According to one embodiment of the present invention, the hemispherical micro-protrusion structure comprises, from the inside out: a rigid core, a transition coating layer, and a surface bonding layer.

[0008] According to one embodiment of the present invention, the diameter of the rigid core is 0.3μm to 0.8μm, the thickness of the transition coating layer is 0.2μm to 0.4μm, and the thickness of the surface bonding layer is 0.1μm to 0.2μm.

[0009] According to one embodiment of the present invention, the width of the above-mentioned mesh-like reinforcing ribs is 0.2μm to 0.5μm, and the height is 1.0μm to 2.0μm.

[0010] According to one embodiment of the present invention, the antireflection layer is composed of four film layers, which are arranged from the inside to the outside as follows: the first layer is a silicon dioxide layer with a thickness of 25-35nm, the second layer is a titanium dioxide layer with a thickness of 55-65nm, the third layer is a silicon dioxide layer with a thickness of 95-105nm, and the fourth layer is a titanium dioxide layer with a thickness of 75-85nm.

[0011] Compared with the prior art, the present invention can achieve the following technical effects: The mesh-like reinforcing ribs and hemispherical micro-protrusion structure significantly improve the wear and scratch resistance of the lens surface, while ensuring the durability of the anti-fog function and excellent optical performance. It has superior overall performance and a long service life.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the above technical effects at the same time. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a cross-sectional schematic diagram of the wear-resistant and scratch-resistant carport lens according to an embodiment of this utility model.

[0014] Attached Figure Labels

[0015] Lens substrate 10, transition layer 20, anti-reflective layer 30, silicon dioxide layer 31, titanium dioxide layer 32, core wear-resistant layer 50, mesh-like reinforcing ribs 51, hemispherical micro-protrusion structure 52, anti-fog layer 60, surface protective layer 70. Detailed Implementation

[0016] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.

[0017] Please refer to Figure 1 , Figure 1 This is a cross-sectional schematic diagram of a wear-resistant and scratch-resistant carport lens according to an embodiment of the present invention. As shown in the figure, a wear-resistant and scratch-resistant carport lens includes: a lens substrate 10, and a transition layer 20, an anti-reflection layer 30, a core wear-resistant layer 50, an anti-fog layer 60, and a surface protective layer 70 are sequentially stacked on the outer side of the lens substrate 10.

[0018] In one embodiment of this utility model, the wear-resistant and scratch-resistant carport lens is supported by a lens substrate 10, and its outer side is composed of a transition layer 20, an anti-reflection layer 30, a core wear-resistant layer 50, an anti-fog layer 60 and a surface protective layer 70, which are sequentially stacked by coating technology to form a composite functional system.

[0019] Furthermore, the core wear-resistant layer 50 is provided with a grid-like reinforcing rib 51, and a hemispherical micro-protrusion structure 52 is provided in the gap of the grid-like reinforcing rib 51. The base of the hemispherical micro-protrusion structure 52 is integrally connected with the grid-like reinforcing rib 51. Its hemispherical protrusion is embedded in and penetrates the anti-fog layer 60, and the highest point of the hemispherical protrusion is in contact with the inner surface of the surface protective layer 70. The hemispherical micro-protrusion structure 52 includes, from the inside to the outside: a rigid core, a transition coating layer and a surface bonding layer. The diameter of the rigid core is 0.3μm to 0.8μm, the thickness of the transition coating layer is 0.2μm to 0.4μm, the thickness of the surface bonding layer is 0.1μm to 0.2μm, the width of the grid-like reinforcing rib 51 is 0.2μm to 0.5μm, and the height is 1.0μm to 2.0μm.

[0020] In detail, the core wear-resistant layer 50 is characterized by a composite microstructure of "grid reinforcement-protrusion anchoring" constructed within it. This structure uses grid-like reinforcing ribs 51 as its macroscopic framework; the width and height of these ribs effectively divide and bear pressure from the surface, forming the first mechanical barrier and significantly improving the overall rigidity and impact resistance of the film layer. The innovative hemispherical micro-protrusion structure 52, whose base is integrally connected to the reinforcing ribs, ensures the stability of the structural foundation. Secondly, the innermost rigid core provides the essential hardness required for the support; the intermediate transition coating layer acts as a stress buffer, coordinating potential stress mismatch between the rigid core and the outer layers through its gradually changing modulus, preventing interface cracking; and the outermost surface bonding layer has high reactivity, forming strong chemical bonds with the upper and lower film layers it contacts. Its hemispherical protrusion is embedded upward and penetrates the entire anti-fog layer 60, with its highest point directly contacting the inner surface of the surface protective layer 70. This provides a crucial "mechanical anchoring" effect, acting like countless tiny bridge piers to firmly lock the soft and fragile anti-fog layer 60 onto the rigid support structure, and also tightly "tethering" the outermost surface protective layer 70 together. This greatly enhances the bonding force between the functional film layers and the stability of the overall structure, fundamentally solving the problems of delamination, peeling, and premature failure of the anti-fog function caused by insufficient adhesion between film layers. Ultimately, this allows the lens to simultaneously achieve excellent abrasion and scratch resistance and long-lasting anti-fog function.

[0021] Furthermore, the antireflection layer 30 is composed of four layers, which are arranged from the inside out as follows: the first layer is a silicon dioxide layer 31 with a thickness of 25-35 nm, the second layer is a titanium dioxide layer 32 with a thickness of 55-65 nm, the third layer is a silicon dioxide layer 31 with a thickness of 95-105 nm, and the fourth layer is a titanium dioxide layer 32 with a thickness of 75-85 nm.

[0022] In detail, the antireflection layer 30 employs a precisely designed four-layer optical film system. The materials and thicknesses of each layer from the inside out are configured as follows: The first layer is a silicon dioxide layer 31 with a thickness of 25-35 nm. This layer serves as an adhesive layer with the underlying transition layer 20, and its low refractive index provides a good starting point for the entire film system. The second layer is a titanium dioxide layer 32 with a thickness of 55-65 nm. This high refractive index layer serves as the first functional layer and works in conjunction with the first layer to begin interference cancellation of light in a specific wavelength band. The third layer is a silicon dioxide layer 31 with a thickness of 95-105 nm. This core low refractive index layer plays a crucial role in phase adjustment and buffering. It can both form a strong refractive index contrast with the upper and lower high refractive index layers to broaden the antireflection band and effectively release the stress within the film layer, enhancing the film layer's robustness. The outermost fourth layer is a titanium dioxide layer 32 with a thickness of 75-85 nm. This high refractive index layer serves as an interface layer in contact with the external environment, ultimately completing the interference cancellation of reflected light across a wider visible spectrum. This specific thickness and the four-layer structure with alternating low-high-low-high refractive indices is an optimized design based on the principle of optical interference. Its function is to achieve extremely low residual reflectivity over a wide spectral range, thereby significantly improving the light transmittance of the lens, eliminating annoying stray reflections, and improving visual contrast and clarity. At the same time, the film system is stable and has good compatibility and bonding with adjacent layers, ensuring the long-term optical performance and reliability of the overall film structure under complex working conditions.

[0023] In summary, this utility model significantly improves the wear and scratch resistance of the lens surface through the mesh-like reinforcing ribs 51 and the hemispherical micro-protrusion structure 52, while ensuring the durability of the anti-fog function and excellent optical performance. It has superior overall performance and a long service life.

Claims

1. A scratch and abrasion resistant car mirror lens, characterized by, include: The lens substrate has a transition layer, an anti-reflection layer, a core wear-resistant layer, an anti-fog layer, and a surface protective layer stacked sequentially on its outer side. The core wear-resistant layer is provided with a grid-like reinforcing rib, and a hemispherical micro-protrusion structure is provided in the gap of the grid-like reinforcing rib. The base of the hemispherical micro-protrusion structure is integrally connected with the grid-like reinforcing rib. The hemispherical protrusion is embedded in and penetrates the anti-fog layer, and the highest point of the hemispherical protrusion is in contact with the inner surface of the surface protective layer.

2. The abrasion and scratch resistant car mirror lens according to claim 1, wherein, The hemispherical micro-protrusion structure comprises, from the inside out: a rigid core, a transition coating layer, and a surface bonding layer.

3. The abrasion and scratch resistant car mirror lens of claim 2, wherein, The rigid core has a diameter of 0.3 μm to 0.8 μm, the transition coating layer has a thickness of 0.2 μm to 0.4 μm, and the surface bonding layer has a thickness of 0.1 μm to 0.2 μm.

4. The abrasion and scratch resistant car mirror lens of claim 1, wherein, The width of the mesh-like reinforcing ribs is 0.2μm to 0.5μm, and the height is 1.0μm to 2.0μm.

5. The abrasion and scratch resistant car mirror lens of claim 1, wherein, The antireflective layer consists of four layers, from the inside out: the first layer is a silicon dioxide layer with a thickness of 25-35 nm, the second layer is a titanium dioxide layer with a thickness of 55-65 nm, the third layer is a silicon dioxide layer with a thickness of 95-105 nm, and the fourth layer is a titanium dioxide layer with a thickness of 75-85 nm.

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