Lightweight anti-fog multi-purpose snow goggle

Abstract

The utility model discloses a light fog -proof multifunctional snow mirror. The frame is in the front and back extension shape, and the frame forms the lens groove for assembling the lens at the front edge away from the face, and forms the close surface at the rear edge close to the face, is equipped with the anti -collision sponge on the close surface, and the middle of frame is equipped with the air hole, and the outside of air hole is equipped with the air -permeable sponge. The lens is single -layer one piece structure, and the convex surface of base material is sequentially compounded polarizing layer, discoloration layer, hard layer, all -over coating layer and oil -proof layer, and all -over coating layer is formed by three layers of niobium oxide and two layers of silicon dioxide alternately superimposed, and the thickness of three layers of niobium oxide and two layers of silicon dioxide is 106nm, 135nm, 61nm, 88nm, 49nm from the concave surface to the convex surface of base material, and a layer of anti -fog layer is compounded on the concave surface of base material, and the mirror band is installed at the both ends of frame. This structure is simple, and the quality is super light, has fog -proof, discoloration and anti -glare multiple functions.

Description

Technical Field

[0001] This utility model relates to the technical field of eyeglasses, and in particular to the structure of a lightweight, anti-fog, multifunctional snow goggle. Background Technology

[0002] Traditional snow goggles consist of a frame, lenses, and straps. The lenses are mounted in the frame, and the straps are attached to both ends of the frame. Lenses are divided into single-layer and multi-layer lenses. Single-layer lens snow goggles typically have simple functions, mainly providing wind and dust protection, but their anti-fogging and harmful light blocking capabilities are not ideal, posing safety risks during sports activities, hence these products are not popular. Double-layer lens snow goggles have a space between the two lenses to enhance internal air circulation and prevent fogging. However, the double lenses are bonded and fixed together using adhesive foam and reinforced with magnets. The structure of double-layer lenses is not only complex but also difficult to assemble. Furthermore, it is difficult to rework after bonding, resulting in poor quality and a low yield rate. Moreover, double-layer lens snow goggles do not provide ideal protection against harmful light, and the double lenses also increase the overall weight of the goggles, leading to poor wearing comfort during sports activities. Therefore, the inventor has specifically designed this lightweight, anti-fog, multi-functional snow goggle to meet market needs. Utility Model Content

[0003] The purpose of this invention is to provide a lightweight, anti-fog, multi-functional snow goggle with a simple structure, ultra-light weight, and multiple functions such as anti-fog, photochromic, and anti-glare.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A lightweight, anti-fog, multi-functional snow goggle comprises a frame, lenses, and straps. The frame extends forward and backward, with a lens groove formed at the front edge away from the face for assembling the lens, and a fitting surface formed at the rear edge closer to the face. The fitting surface is lined with impact-resistant foam. A vent is located in the center of the frame, and breathable foam is provided on the outer side of the vent. The lenses are assembled in the lens groove and have a single-layer, one-piece structure, consisting of a substrate, a polarizing layer, a photochromic layer, a hardening layer, a full-coverage coating layer, an oil-resistant layer, and a waterproof layer. The fogging layer consists of a polarizing layer, a color-changing layer, a hardening layer, a full-coverage coating layer, and an oil-resistant layer sequentially laminated on the convex surface of the substrate. The full-coverage coating layer is composed of three layers of niobium oxide and two layers of silicon dioxide, with the two-layer silicon dioxide layer located between the three layers of niobium oxide. The thicknesses of the three-layer niobium oxide and the two-layer silicon dioxide layers are 106nm, 135nm, 61nm, 88nm, and 49nm respectively from the concave to the convex surface of the substrate. An anti-fog layer is laminated on the concave surface of the substrate. The lens strap is installed at both ends of the lens frame.

[0005] The frame is widened to correspond to the brow and cheek positions, and ventilation holes are provided in the widened section.

[0006] The frame has holes at both ends for the strap, and the two ends of the strap are inserted through the holes and fixed to the frame.

[0007] The lens substrate is a PC sheet, nylon sheet, CR sheet, or acrylic sheet, with a thickness of 1.5-1.8mm.

[0008] The thickness of the polarizing layer is 8-10 μm.

[0009] The color-changing layer is made of spiropyran or spiroxazine photochromic material with a thickness of 5-10 μm.

[0010] The thickness of the hardening layer is 6-8 μm.

[0011] The thickness of the oil-resistant layer is 3-8 μm.

[0012] The thickness of the anti-fog layer is 5-8 μm.

[0013] With the above structure, the lens of this utility model is a single-layer structure. Compared with the traditional single-layer structure lens, it maintains the overall lightweight characteristics of snow goggles. Compared with the traditional double-layer structure, the lens weight is only half, making the snow goggles lighter overall.

[0014] Furthermore, the lens of this invention incorporates a polarizing layer, a photochromic layer, a hardening layer, a full-coverage coating layer, an oil-resistant layer, and an anti-fog layer on a substrate. Its simple structure and ease of manufacturing allow the lens to integrate multiple functions such as anti-fog, photochromic, anti-glare, full-color, and oil resistance. The multi-layered structure of niobium oxide and silicon dioxide in the full-coverage coating layer ensures uniform and dense lens color. Combined with photochromic and polarizing properties, it filters ultraviolet and blue light. When used in snow, the light transmittance is controlled to approximately 10% under bright sunlight and approximately 55% under cloudy conditions, ensuring relatively clear vision, reducing glare interference, enhancing visual comfort, and minimizing eye damage from strong sunlight in snowy conditions, thus preventing snow blindness and other eye injuries.

[0015] Meanwhile, the frame of this invention extends forward and backward, increasing the ventilation space between the eyes and the lenses and enhancing air circulation inside the goggles. Combined with the ventilation holes on the frame and the breathable sponge on the outer side of the ventilation holes, the goggles become even lighter overall, effectively preventing fogging on the inner surface of the lenses and ensuring safety during exercise. The breathable sponge, located on the outer side of the ventilation holes, allows for ventilation and anti-fogging at low speeds. However, at high speeds, the wind will compress and reinforce the breathable sponge, and the air pressure will deform the sponge to automatically adjust the size of the vents, preventing strong winds from entering the ventilation space and irritating the eyes, causing tearing.

[0016] In addition, this invention also utilizes anti-impact foam on the frame's contact surface to greatly reduce the impact of the frame on the eyes and surrounding area during exercise, thus improving safety during sports activities.

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments are briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a frontal perspective view of the three-dimensional structure of this utility model; Figure 2 This is a rear-view perspective structural diagram of the present invention; Figure 3 This is an exploded perspective view of the present invention. Figure 4 This is a rear-view exploded perspective view of this utility model; Figure 5 This is an enlarged view of the assembly of the ventilation holes and the breathable sponge; Figure 6 This is a schematic diagram of the lens structure; Figure 7 yes Figure 6 A magnified view of a portion of the image; Figure 8 This is the transmittance spectrum of this utility model.

[0020] Label Explanation Frame 1, breathable foam 11, impact-resistant foam 12, widened part 13, lens groove 14, ventilation hole 15, fitting surface 16, strap hole 17. Lens 2, substrate 21, polarizing layer 22, photochromic layer 23, hardening layer 24, full coating layer 25, niobium oxide 251, silicon dioxide 252, oil-proof layer 26, anti-fog layer 27. Mirror strap 3. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] It should be noted that the terms front, back, front, back, inside, outside, top, bottom, left, right, first, second, third, first, second, etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the technical features indicated, unless otherwise clearly and specifically defined.

[0023] See Figures 1 to 8 As shown, the present invention discloses a lightweight anti-fog multifunctional snow goggle, which consists of a frame 1, a lens 2, and a strap 3.

[0024] The frame 1 extends forward and backward. A lens groove 14 for assembling the lenses is formed at the front edge of the frame 1, away from the face. The forward and backward extension of the frame 1 increases the ventilation space between the eyes and the lenses 2, enhancing air circulation inside the goggles. A fitting surface 16 is formed at the rear edge of the frame 1 near the face, and anti-impact foam 12 is provided on the fitting surface 16. The anti-impact foam 12 greatly reduces the impact of the frame 1 on the eyes and surrounding area during exercise, improving safety during exercise. A ventilation hole 15 is opened in the middle of the frame 1, and a breathable foam 11 is provided on the outer side of the ventilation hole 15. The ventilation hole 15 reduces the weight of the frame 1, further making the goggles lighter overall. Moreover, the ventilation hole 15, together with the breathable foam 11 and the control of the pore density of the breathable foam 11 (the pore density can be selected through experimental testing), can effectively prevent fogging of the inner surface of the lenses, ensuring safety during exercise. Furthermore, the breathable foam 11 is located on the outer side of the ventilation hole 15, rather than the inner side, so that when the speed of exercise... At low speeds, the breathable sponge 16 and vents 15 can achieve the function of exhaust and anti-fogging. However, when the movement speed is high, the wind force is also strong. The strong wind will compress and reinforce the breathable sponge 11 to fix it on the outer surface of the vents 15, ensuring the effective assembly and fixation of the breathable sponge 11. If the air pressure is high enough, the air pressure will squeeze the breathable sponge 11 into the vents 15 and deform it to automatically adjust the size of the vents of the breathable sponge 11, preventing strong winds from entering the breathable space and irritating the eyes, causing tearing.

[0025] The lens 2 is assembled in the lens groove 14. The lens 2 is a single-layer, one-piece structure. Compared with traditional single-layer lenses, the single-layer structure of this invention maintains the lightweight characteristics of snow goggles. Compared with traditional double-layer structures, the lens weighs only half, making the snow goggles lighter overall. The lens 2 is composed of a substrate 21, a polarizing layer 22, a photochromic layer 23, a hardening layer 24, a full-coverage coating layer 25, an oil-resistant layer 26, and an anti-fog layer 27. The polarizing layer 22, photochromic layer 23, hardening layer 24, full-coverage coating layer 25, and oil-resistant layer 26 are sequentially laminated on the convex surface of the substrate 21, while an anti-fog layer 27 is laminated on the concave surface of the substrate 21. The lens 2 of this invention has a simple structure, is easy to manufacture, and integrates multiple functions such as anti-fog, photochromic, anti-glare, full-color, and oil resistance. The full coating layer 25 is composed of three layers of niobium oxide 251 and two layers of silicon dioxide 252, which are alternately stacked. The two layers of silicon dioxide 252 are located between the three layers of niobium oxide 251. The thicknesses of the three layers of niobium oxide 251 and the two layers of silicon dioxide 252 are 106nm, 135nm, 61nm, 88nm, and 49nm respectively from the concave to the convex surface of the substrate 21. The special film structure of the full coating layer 25 makes the lens 2 uniform and dense in color. Combined with the photochromic layer 23 and the polarizing layer 22, it can filter ultraviolet light and blue light. When used in snow, the light transmittance is controlled at about 10% under strong sunlight on sunny days and about 55% under cloudy days. This ensures relatively clear vision while reducing glare interference, enhancing visual comfort, reducing the damage to the eyes caused by strong light in snow, and avoiding eye damage such as snow blindness.

[0026] The lens strap 3 is installed at both ends of the lens frame 1. A further optimized structure is that the lens frame 1 has strap holes 17 at both ends, and the two ends of the lens strap 3 are inserted into the strap holes 17 and fixed to the lens frame 1.

[0027] Furthermore, the frame 1 of this invention is designed with a widened portion 13 corresponding to the brow and cheek positions, and ventilation holes 15 are opened in the widened portion 13 to increase the ventilation space and enhance the air circulation inside the ski goggles.

[0028] The specific processing technology of the lens 2 of this utility model is as follows: The substrate 21 is preferably a PC sheet, nylon sheet, CR sheet, or acrylic sheet, which is injection molded. The thickness of the substrate 21 is 1.5-1.8mm. During the injection molding of the substrate 21, a polarizing layer 22 is simultaneously bonded to the convex surface of the substrate 21. The thickness of the polarizing layer 22 is 8-10μm, thereby enabling the lens 2 to have a polarizing function, selectively blocking light from certain directions while allowing light from only specific directions to pass through, thus blocking stray light such as glare and reflected light. A photochromic layer 23 is bonded to the polarizing layer 22 by spin-coating a photochromic liquid. The photochromic liquid of the photochromic layer 23 can be a spiropyran or spiroxazine photochromic material. The thickness of the photochromic layer 23 is 5-10μm. The photochromic layer 23 enables the lens 2 to change color at a rate that meets international standards, from #0 to #4. A hardening layer 24, 6-8 μm thick, is coated onto the photochromic layer 23 by applying a hardening liquid. The hardening layer 24 facilitates the subsequent formation of a full-coverage coating layer 25 by vacuum deposition. The special film structure of the full-coverage coating layer 25, consisting of three layers of niobium oxide 251 and two layers of silicon dioxide 252, combined with the photochromic layer 23 and the polarizing layer 22, causes the lens 2 to darken in strong light, reducing light transmittance and increasing reflectivity, thus appropriately reducing lens clarity to balance protection and clarity, preventing strong light from damaging the eyes and causing snow blindness. In weak light, the lens 2 becomes lighter, appropriately increasing light transmittance and reducing reflectivity, thus appropriately increasing lens clarity and reducing strong light protection. An oil-resistant layer 26, 3-8 μm thick, is then spin-coated onto the full-coverage coating layer 25, giving the lens 2 oil-resistant properties. An anti-fog layer 27 is laminated onto the concave surface of the substrate 21 by spin coating with an anti-fog liquid. The thickness of the anti-fog layer 27 is 5-8 μm, which enables the lens 2 to have an anti-fog function.

[0029] In summary, this invention utilizes a hollow design with ventilation holes 15 in the frame 1 and a single-layer lens 2 structure to reduce the weight of the snow goggles from the frame 1 to the lens 2, resulting in an ultra-lightweight product. By leveraging the ventilation space, ventilation holes 15, and breathable foam 11 in the frame 1, combined with the oil-resistant layer 26 on the lens 2, this invention enhances the anti-fog function of the snow goggles, making them more suitable for sports use and improving safety. Furthermore, this invention employs a special film structure of a full-coating layer 25 consisting of three layers of niobium oxide 251 and two layers of silicon dioxide 252 to ensure uniform color on the lens 2. Combined with a photochromic layer 23 and a polarizing layer 22, this enables the snow goggles to achieve multiple functions, including photochromic effects and anti-glare. This allows for automatic adjustment and control of light transmittance and reflectivity in bright sunlight or snowy conditions, as well as in low-light or nighttime environments, ensuring relatively clear vision, enhancing visual comfort, and reducing eye strain from strong light.

[0030] The test results for this utility model's snow goggles show that the polarization rate of lens 2 is >96%. Figure 8As shown, in bright sunlight or snowy conditions, lens 2 darkens, with a light transmittance of 8-13%; in cloudy or low-light conditions, lens 2 lightens, with a light transmittance of 55-60%. Furthermore, the entire pair of goggles passes the European standard ISO 16321 anti-fog test and the Z87.1 impact test. The product conforms to the snow goggle standard ISO 13527-1.

[0031] The embodiments described above are only for illustrating the technical ideas and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly, but they do not limit the patent scope of this utility model. All equivalent changes or modifications made in accordance with the spirit disclosed in this utility model should still be covered within the patent scope of this utility model.

Claims

1. A lightweight, anti-fog, multi-functional snow goggle, characterized in that: The glasses consist of a frame, lenses, and straps. The frame extends forward and backward, with a lens groove formed at the front edge away from the face for assembling the lenses, and a fitting surface at the rear edge closer to the face. The fitting surface is lined with anti-impact foam. A vent is located in the center of the frame, and breathable foam is provided on the outer side of the vent. The lenses are assembled in the lens grooves and are single-layer, one-piece structures, consisting of a substrate, a polarizing layer, a photochromic layer, a hardening layer, a full-coverage coating layer, an oil-resistant layer, and an anti-fog layer. The polarizing layer, photochromic layer, hardening layer, full-coverage coating layer, and oil-resistant layer are sequentially laminated on the convex surface of the substrate. The full-coverage coating layer is composed of alternating layers of three niobium oxide layers and two silica layers, with the silica layer positioned between the three niobium oxide layers. The thicknesses of the three niobium oxide layers and the silica layer from the concave to the convex surface of the substrate are 106nm, 135nm, 61nm, 88nm, and 49nm, respectively. An anti-fog layer is laminated on the concave surface of the substrate. The straps are attached to both ends of the frame.

2. The lightweight anti-fog multifunctional snow goggles according to claim 1, characterized in that: The frame is widened to correspond to the brow and cheek positions, and ventilation holes are provided in the widened section.

3. The lightweight anti-fog multifunctional snow goggles according to claim 1, characterized in that: The frame has holes at both ends for the strap, and the two ends of the strap are inserted through the holes and fixed to the frame.

4. The lightweight anti-fog multifunctional snow goggles according to claim 1, characterized in that: The lens substrate is a PC sheet, nylon sheet, CR sheet, or acrylic sheet, with a thickness of 1.5-1.8mm.

5. The lightweight anti-fog multifunctional snow goggles according to claim 1, characterized in that: The thickness of the polarizing layer is 8-10 μm.

6. The lightweight anti-fog multifunctional snow goggles according to claim 1, characterized in that: The color-changing layer is made of spiropyran or spiroxazine photochromic material with a thickness of 5-10 μm.

7. The lightweight anti-fog multifunctional snow goggles according to claim 1, characterized in that: The thickness of the hardening layer is 6-8 μm.

8. The lightweight anti-fog multifunctional snow goggles according to claim 1, characterized in that: The thickness of the oil-resistant layer is 3-8 μm.

9. The lightweight anti-fog multifunctional snow goggles according to claim 1, characterized in that: The thickness of the anti-fog layer is 5-8 μm.

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