Glass iridescent lens

Abstract

The utility model discloses a kind of glass fancy mirror, the glass fancy mirror includes: glass substrate, fancy layer, reinforcing layer and composite protective layer;Fancy layer is arranged on the side surface of glass substrate;Reinforcing layer is arranged on the side surface of fancy layer back to glass substrate;Composite protective layer is arranged on the side surface of reinforcing layer back to fancy layer;Fancy layer is set to be by high refractive index dielectric film layer and low refractive index dielectric film layer alternative laminated and constitute multilayer film stack;Reinforcing layer is provided with periodically arranged nano grating structure.Glass fancy mirror is formed by the interference structure of the fancy layer of non-periodic film stack and the reinforcing layer with nano grating structure, and the synergistic effect of two physical effects is realized, in stable laminated structure, to produce a kind of color rich, transition continuous smooth, with viewing angle dynamic change strong, and have excellent durability fancy optical effect.

Description

Technical Field

[0001] This utility model relates to the field of glass iridescent lens technology, and in particular to a glass iridescent lens. Background Technology

[0002] Iridescent lenses, as optical elements with decorative visual effects, have been widely used in recent years in fashion eyewear, sunglasses, sports goggles, and various consumer electronics components. By forming a special optical structure layer on the lens substrate, the lens displays vibrant colors under light, enhancing the product's aesthetic appeal and added value. Currently, the mainstream technology for achieving iridescent effects on glass lenses is physical vapor deposition (PVD) coating technology. Specifically, this involves alternately depositing multiple layers of dielectric thin films with different refractive indices on the glass substrate surface using methods such as electron beam evaporation or magnetron sputtering. Specific colors are generated through the principle of thin-film interference. For example, Chinese patent application publication number CN105445821A discloses a technical solution for a lens with self-cleaning and iridescent function and its preparation method.

[0003] However, existing iridescent glass lenses based on multilayer thin-film interference still suffer from several significant technical drawbacks in practice: limited and fixed colors, insufficient visual depth, and inadequate stability and durability of the iridescent effect. Therefore, there is an urgent need for a novel iridescent glass lens structure that can overcome these shortcomings and provide a product with rich and varied colors, dynamic visual effects, and excellent durability. Utility Model Content

[0004] Therefore, it is necessary to provide a glass iridescent lens to address the technical problems of existing iridescent lenses, such as limited color and insufficient visual depth.

[0005] A glass iridescent lens includes a glass substrate, an iridescent layer, a reinforcing layer, and a composite protective layer; the iridescent layer is disposed on one side surface of the glass substrate; the reinforcing layer is disposed on the side surface of the iridescent layer facing away from the glass substrate; and the composite protective layer is disposed on the side surface of the reinforcing layer facing away from the iridescent layer, thereby forming a composite lens structure stacked sequentially.

[0006] The iridescent layer formed on the glass substrate is configured as a multilayer film stack consisting of alternating layers of high-refractive-index dielectric film and low-refractive-index dielectric film, and the thickness of the high-refractive-index dielectric film and the low-refractive-index dielectric film varies non-periodically along the stacking direction, thereby forming a composite coating layer with iridescent effect; the reinforcement layer formed on the iridescent layer is provided with a periodically arranged nanograting structure.

[0007] In one embodiment, in the non-periodic multilayer film stack of the above-mentioned iridescent layer, the thickness of each dielectric film can be determined according to the actual color requirements.

[0008] In one embodiment, the high refractive index dielectric film layer in the aforementioned iridescent layer is titanium dioxide. or tantalum pentoxide The first one in the membrane layer.

[0009] In one embodiment, the low-refractive-index dielectric film in the aforementioned iridescent layer is silicon dioxide. Membrane.

[0010] In one embodiment, a functional layer is further provided between the reinforcing layer and the composite protective layer, and the functional layer serves as a photochromic layer structure.

[0011] In one embodiment, the functional layer comprises at least one of silver halide and spiroxazine photochromic compounds, and is filled onto the surface of the nanograting structure of the reinforcement layer by spin coating.

[0012] In one embodiment, the arrangement period of the nanograting structure of the above-mentioned enhancement layer is 300 nanometers to 500 nanometers.

[0013] In one embodiment, the composite protective layer comprises a hardening layer, an antireflective layer, and a hydrophobic and oleophobic layer stacked sequentially from the inside out.

[0014] In one embodiment, the aforementioned hardening layer is an organic-inorganic hybrid silicon coating.

[0015] In one embodiment, the antireflective layer is magnesium fluoride. Membrane.

[0016] In one embodiment, the hydrophobic and oleophobic layer described above is a fluorinated silane coating.

[0017] In one embodiment, the total thickness of the aforementioned iridescent layer is 1 micrometer to 3 micrometers.

[0018] In one embodiment, the aforementioned iridescent glass lens is prepared through the following steps: providing a glass substrate and cleaning it; sequentially depositing a non-periodic high-refractive-index dielectric film layer and a low-refractive-index dielectric film layer on the glass substrate using physical vapor deposition to form an iridescent layer; spin-coating a layer of UV-curable resin onto the coating surface, and forming a nanoscale periodic grating structure on the surface of the UV-curable resin using nanoimprint lithography to constitute a reinforcement layer; uniformly coating the photochromic resin liquid onto the nano-grating structure layer using precision coating technology, and curing it to form a functional layer; preparing a composite protective layer on the reinforcement layer, applying a silicon-based hardening liquid by immersion coating, curing, and depositing it by vacuum deposition. Antireflective coatings are applied by vapor deposition or impregnation to form a fluorinated hydrophobic layer.

[0019] The aforementioned glass iridescent lens achieves a synergistic effect of two physical effects through the interference structure formed by the iridescent layer in the form of a non-periodic film stack and the diffraction structure formed by the reinforcement layer with a nano-grating structure. Within a stable stacked structure, this produces an iridescent optical effect with rich colors, smooth and continuous transitions, strong dynamic changes with viewing angle, and excellent durability, as well as aesthetic value and practicality. Specifically, the iridescent layer forms an interference structure by colloidally combining a high-refractive-index dielectric film with a non-periodic variation in thickness and a low-refractive-index dielectric film. When illuminated by white light, the entire film can simultaneously reflect a wider range of colors across the spectrum, creating a continuous, smooth, aurora-like color transition. This avoids abrupt breaks in color banding and greatly enhances the richness and aesthetic appeal of the colors. Based on the nano-grating structure of the reinforcement layer, light undergoes diffraction when passing through its periodic structure, dispersing different wavelengths of light in different directions. This is coupled with the interference effect of the iridescent layer, thereby enhancing color saturation, complexity, and dynamic visual effects. Furthermore, placing the reinforcement layer inside the composite protective layer isolates the nano-grating structure from the external environment, thus strengthening the overall abrasion resistance, corrosion resistance, and lifespan of the lens. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a glass iridescent lens in one embodiment. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Please see Figure 1This utility model discloses a glass iridescent lens 1, which includes a glass substrate 10, an iridescent layer 20, a reinforcing layer 30, and a composite protective layer 40. The iridescent layer 20 is disposed on one side surface of the glass substrate 10; the reinforcing layer 30 is disposed on the side surface of the iridescent layer 20 facing away from the glass substrate 10; and the composite protective layer 40 is disposed on the side surface of the reinforcing layer 30 facing away from the iridescent layer 20, thereby forming a composite lens structure stacked sequentially. The iridescent layer 20 formed on the glass substrate 10 is configured as a multilayer film stack composed of alternating layers of a high-refractive-index dielectric film layer 21 and a low-refractive-index dielectric film layer 22, and the thicknesses of the high-refractive-index dielectric film layer 21 and the low-refractive-index dielectric film layer 22 vary non-periodically along the stacking direction, thereby forming a composite coating layer with an iridescent effect. The reinforcing layer 30 formed on the iridescent layer 20 is provided with periodically arranged nanograting structures 31. Based on the above settings, the glass iridescent lens 1 in this solution achieves the synergistic effect of two physical effects through the interference structure formed by the iridescent layer 20 in the form of a non-periodic film stack and the diffraction structure formed by the enhancement layer 30 with the nano-grating structure 31. Within the stable stacked structure, this produces an iridescent optical effect with rich colors, smooth and continuous transitions, strong dynamic changes with viewing angle, and excellent durability, as well as aesthetic value and practicality. Specifically, the iridescent layer 20 forms an interference structure by colloidally combining a high-refractive-index dielectric film 21 with a non-periodic variation in thickness and a low-refractive-index dielectric film 22. When illuminated by white light, the entire film can simultaneously reflect a wider range of colors, creating a continuous, smooth, aurora-like color transition. This avoids abrupt breaks in the color band and greatly enhances the richness and aesthetics of the colors. Based on the nano-grating structure 31 of the reinforcing layer 30, when light passes through its periodic structure, diffraction occurs, dispersing light of different wavelengths in different directions. This is coupled with the interference effect of the iridescent layer 20, thereby enhancing color saturation, complexity, and dynamic visual effects. Furthermore, placing the reinforcing layer 30 inside the composite protective layer 40 isolates the nano-grating structure 31 from the external environment, thereby strengthening the overall wear resistance, corrosion resistance, and lifespan of the lens.

[0028] Furthermore, in the non-periodic multilayer film stack of the iridescent layer 20, the thickness of each dielectric film can be determined according to the actual color requirements, so that the lens can present continuously changing interference colors at different viewing angles, realize the customization of the iridescent effect, and improve the freedom and precision of lens optical design.

[0029] Furthermore, in one embodiment, the high refractive index dielectric film 21 in the iridescent layer 20 is titanium dioxide. or tantalum pentoxide In another embodiment, the low-refractive-index dielectric film 22 in the iridescent layer 20 is silicon dioxide. Membrane.

[0030] Furthermore, a functional layer 50 is provided between the reinforcing layer 30 and the composite protective layer 40, which serves as a photochromic layer structure.

[0031] Furthermore, the functional layer 50 contains at least one of silver halide and spiroxazine photochromic compounds, and is filled onto the surface of the nanograting structure 31 of the reinforcement layer 30 by spin coating.

[0032] Furthermore, the arrangement period of the nanograting structure 31 of the enhancement layer 30 is 300 nanometers to 500 nanometers, thereby ensuring the diffraction effect of the enhancement layer 30.

[0033] Furthermore, the composite protective layer 40 includes a hardening layer 41, an antireflective layer 42, and a hydrophobic and oleophobic layer 43 stacked sequentially from the inside out, thereby enhancing the stability, toughness, antireflective effect, and hydrophobic and oleophobic properties of the lens surface.

[0034] Furthermore, in one embodiment, the hardening layer 41 is an organic-inorganic hybrid silicon coating; in another embodiment, the antireflection layer 42 is magnesium fluoride. Film layer; in another embodiment, the hydrophobic and oleophobic layer 43 is a fluorinated silane coating.

[0035] Furthermore, the total thickness of the iridescent layer 20 is 1 to 3 micrometers to balance the overall thickness of the lens and the iridescent effect.

[0036] Furthermore, the glass iridescent lens 1 is prepared through the following steps: a glass substrate 10 is provided and cleaned; a non-periodic high-refractive-index dielectric film layer 21 and a low-refractive-index dielectric film layer 22 are sequentially deposited on the glass substrate 10 using physical vapor deposition technology to form an iridescent layer 20; a layer of UV-curable resin is spin-coated onto the coating surface, and a nanoscale periodic grating structure is formed on the surface of the UV-curable resin using nanoimprint lithography technology to form a reinforcement layer 30; photochromic resin liquid is uniformly coated onto the nano-grating structure layer using precision coating technology and cured to form a functional layer 50; a composite protective layer 40 is prepared on the reinforcement layer 30 by dip-coating with a silicon-based hardening liquid, curing, and deposition using a vacuum deposition method. Antireflective coatings are applied by vapor deposition or impregnation to form a fluorinated hydrophobic layer.

[0037] In summary, the glass iridescent lens disclosed in this utility model achieves the synergistic effect of two physical effects through the interference structure formed by the iridescent layer in the form of a non-periodic film stack and the diffraction structure formed by the reinforcement layer with a nano-grating structure. Within a stable stacked structure, this produces an iridescent optical effect with rich colors, smooth and continuous transitions, strong dynamic changes with viewing angle, and excellent durability, as well as aesthetic value and practicality. Specifically, the iridescent layer forms an interference structure by colloidally combining a high-refractive-index dielectric film with a non-periodic variation in thickness and a low-refractive-index dielectric film. When illuminated by white light, the entire film can simultaneously reflect a wider range of colors across the spectrum, creating a continuous, smooth, aurora-like color transition. This avoids abrupt breaks in color banding and greatly enhances the richness and aesthetic appeal of the colors. Based on the nano-grating structure of the reinforcement layer, light undergoes diffraction when passing through its periodic structure, dispersing different wavelengths of light in different directions. This is coupled with the interference effect of the iridescent layer, thereby enhancing color saturation, complexity, and dynamic visual effects. Furthermore, placing the reinforcement layer inside the composite protective layer isolates the nano-grating structure from the external environment, thus strengthening the overall abrasion resistance, corrosion resistance, and lifespan of the lens.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A glass iridescent lens, characterized in that, include: Glass substrate, iridescent layer, reinforcing layer, and composite protective layer; A color-changing layer is applied to one side surface of the glass substrate; The reinforcing layer is disposed on the side surface of the iridescent layer facing away from the glass substrate; the composite protective layer is disposed on the side surface of the reinforcing layer facing away from the iridescent layer, thereby forming a composite lens structure stacked sequentially. The iridescent layer formed on the glass substrate is configured as a multilayer film stack consisting of alternating layers of high-refractive-index dielectric film and low-refractive-index dielectric film, and the thickness of the high-refractive-index dielectric film and the low-refractive-index dielectric film varies non-periodically along the stacking direction, thereby forming a composite coating layer with iridescent effect; the reinforcement layer formed on the iridescent layer is provided with a periodically arranged nanograting structure.

2. The glass iridescent lens according to claim 1, characterized in that, The high refractive index dielectric film in the iridescent layer is either titanium dioxide or tantalum pentoxide.

3. The glass iridescent lens according to claim 2, characterized in that, The low-refractive-index dielectric film in the iridescent layer is a silicon dioxide film.

4. The glass iridescent lens according to claim 3, characterized in that, Between the reinforcing layer and the composite protective layer, there is also a functional layer, which serves as a photochromic layer structure.

5. The glass iridescent lens according to claim 4, characterized in that, The functional layer contains at least one of silver halide and spiroxazine photochromic compounds, and is filled onto the surface of the nanograting structure of the reinforcement layer by spin coating.

6. The glass iridescent lens according to claim 5, characterized in that, The arrangement period of the nanograting structure in the enhancement layer is 300 to 500 nanometers.

7. The glass iridescent lens according to claim 6, characterized in that, The composite protective layer consists of a hardening layer, an antireflective layer, and a hydrophobic and oleophobic layer, which are stacked sequentially from the inside out.

8. The glass iridescent lens according to claim 7, characterized in that, The hardening layer is an organic-inorganic hybrid silicon coating.

9. The glass iridescent lens according to claim 8, characterized in that, The antireflective layer is a magnesium fluoride film.

10. The glass iridescent lens according to claim 9, characterized in that, The hydrophobic and oleophobic layer is a fluorinated silane coating.

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