Spectacle lens structure

Abstract

The utility model discloses a spectacle lens structure which is applied to half-frame spectacles, the half-frame spectacles comprise a spectacle frame and a nylon wire connected with the spectacle frame, and the half-frame spectacles comprise a spectacle lens main body, a blue-light-proof film layer, an ultraviolet-proof film layer, a first protective layer and a second protective layer, the ultraviolet-proof film layer is arranged on one side of the spectacle lens main body in the spectacle lens structure, and the second protective layer is arranged on the other side of the spectacle lens main body. And the blue-light-proof film layer is arranged on the other side, so that the harm of ultraviolet rays and blue light to eyes can be effectively blocked, and the eyes are protected from being influenced by harmful light rays. The two protective layers can provide additional physical protection to prevent the film layer from being scratched or damaged in daily use, so that the service life of the lens is prolonged. The peripheries of the first protective layer and the second protective layer exceed the film layer and are mutually enclosed to form the annular groove, so that the nylon wire can be smoothly transited and fixed at the periphery of the lens, stable support is provided, the comfort and the stability during wearing are ensured, the nylon wire is simple to mount and fix, and the production efficiency is improved. And the half-frame glasses are convenient to assemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of ophthalmology, in particular to a spectacle lens structure. Background Art

[0002] Lenses are a core component of eyeglasses. Their structure determines their functionality. For example, lenses with an anti-UV coating protect against UV radiation and prevent eye damage. Lenses with an anti-blue light coating filter out some blue light, preventing it from damaging the eyes or causing visual fatigue.

[0003] Some existing lenses combine a blue light blocking layer and a blue light blocking layer on the lens body, providing dual UV and blue light protection. However, these lenses require higher maintenance, especially when used in semi-rimless glasses. Compared to full-rimmed glasses, semi-rimless lenses are more exposed and more susceptible to contact with foreign objects. Because the blue light blocking layer and the UV blocking layer are made of softer materials, they are prone to scratches, which in turn affects the lens' lifespan, light transmittance, and aesthetics. Utility Model Content

[0004] The main purpose of the utility model is to provide a spectacle lens structure, aiming to increase the service life of the spectacle lens.

[0005] To achieve the above-mentioned object, the present invention provides a spectacle lens structure, which is applied to half-frame glasses. The half-frame glasses include a frame and a nylon thread connected to the frame, including:

[0006] lens body;

[0007] An anti-ultraviolet film layer is provided on one side of the lens body;

[0008] An anti-blue light film layer is provided on the other side of the lens body;

[0009] a first protective layer, attached to a surface of the anti-ultraviolet film layer facing away from the lens body, wherein the periphery of the first protective layer exceeds the periphery of the anti-ultraviolet film layer;

[0010] The second protective layer is arranged on the side of the anti-blue light film layer away from the lens body. The periphery of the first protective layer exceeds the periphery of the anti-blue light film layer, and is combined with the periphery of the first protective layer and the lens body to form an annular groove. The annular groove is used for the nylon thread to be bundled.

[0011] In some embodiments of the present invention, the first protective layer is a diamond film layer.

[0012] In some embodiments of the present invention, the second protective layer is a diamond film layer.

[0013] In some embodiments of the present invention, a first laminating groove is provided on a side of the first protective layer facing the second protective layer, and the anti-ultraviolet film layer is attached to the bottom wall of the first laminating groove;

[0014] A second bonding groove is provided on a side of the second protective layer facing the first protective layer, and the anti-blue light film layer is bonded to the bottom wall of the second bonding groove.

[0015] In some embodiments of the present invention, the ratio of the groove depth of the first fitting groove to the overall thickness of the first protective layer is greater than or equal to 1 / 3 and less than or equal to 2 / 3.

[0016] In some embodiments of the present invention, the depth of the first laminating groove is greater than or equal to 0.5 mm and less than or equal to 1 mm;

[0017] The depth of the second laminating groove is greater than or equal to 0.5 mm and less than or equal to 1 mm.

[0018] In some embodiments of the present invention, the opening width of the annular groove is less than or equal to 1 mm.

[0019] In some embodiments of the present invention, the eyeglass lens structure further includes two antistatic layers, and the two antistatic layers are respectively adhered to the side of the first protective layer away from the second protective layer.

[0020] In some embodiments of the present invention, the eyeglass lens structure further includes two oleophobic layers, and the two oleophobic layers are respectively disposed on opposite sides of the two antistatic layers.

[0021] In some embodiments of the present invention, the oleophobic layer is a silicon dioxide coating.

[0022] In some embodiments of the present invention, the antistatic layer is an indium tin oxide film.

[0023] The lens structure in this solution is designed for half-frame glasses. The lens body in the lens structure is provided with an anti-ultraviolet film layer on one side and an anti-blue light film layer on the other side, which can effectively block the damage of ultraviolet rays and blue light to the eyes and protect the eyes from the influence of harmful light. The first protective layer and the second protective layer are respectively attached to the anti-ultraviolet film layer and the anti-blue light film layer, and their peripheries extend beyond the corresponding film layers. Such a structure can provide additional physical protection to prevent the film layers from being scratched or damaged during daily use, effectively reducing the wear of the lenses during daily use, thereby extending the service life of the lenses. The peripheries of the first protective layer and the second protective layer extend beyond the film layer and enclose each other to form an annular groove. This design can ensure the smooth transition and fixation of the nylon thread around the periphery of the lens, while providing stable support to ensure comfort and stability when worn, and also makes the installation and fixation of the nylon thread simple, which is convenient for the assembly and maintenance of half-frame glasses. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 This is a structural diagram of an embodiment of the spectacle lens structure provided by the present invention;

[0026] Figure 2 This is an exploded view of an embodiment of the eyeglass lens structure provided by the present invention;

[0027] Figure 3 This is a cross-sectional view of an embodiment of the eyeglass lens structure provided by the present invention.

[0028] Description of Figure Numbers:

[0029] 100. Lens structure; 1. Lens body; 2. Anti-ultraviolet film layer; 3. First protective layer; 31. First bonding groove; 4. Anti-blue light film layer; 5. Second protective layer; 51. Second bonding groove; 6. Oleophobic layer; 7. Antistatic layer; 11. Annular groove.

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] See also Figures 1 to 3 The utility model proposes a lens structure 100, which is applied to half-frame glasses. The half-frame glasses include a frame and a nylon thread connected to the frame, including a lens body 1, an anti-blue light film layer 4, an anti-ultraviolet film layer 2, a first protective layer 3 and a second protective layer 5, wherein the anti-ultraviolet film layer 2 is arranged on one side of the lens body 1; the anti-blue light film layer 4 is arranged on the other side of the lens body 1; the first protective layer 3 is adhered to a surface of the anti-ultraviolet film layer 2 facing away from the lens body 1, and the periphery of the first protective layer 3 exceeds the periphery of the anti-ultraviolet film layer 2; the second protective layer 5 is arranged on the side of the anti-blue light film layer 4 away from the lens body 1, and the periphery of the first protective layer 3 exceeds the periphery of the anti-blue light film layer 4, and is surrounded by the periphery of the first protective layer 3 and the lens body 1 to form an annular groove 11, which is used for the nylon thread to be bundled.

[0035] The lens structure 100 in this solution is designed for half-frame glasses. The lens body 1 in the lens structure 100 is provided with an anti-ultraviolet film layer 2 on one side and an anti-blue light film layer 4 on the other side, which can effectively block the damage of ultraviolet rays and blue light to the eyes and protect the eyes from the influence of harmful light. The first protective layer 3 and the second protective layer 5 are respectively attached to the anti-ultraviolet film layer 2 and the anti-blue light film layer 4, and their peripheries extend beyond the corresponding film layers. Such a structure can provide additional physical protection to prevent the film layers from being scratched or damaged during daily use, effectively reducing the wear of the lenses during daily use, thereby extending the service life of the lenses. The peripheries of the first protective layer 3 and the second protective layer 5 extend beyond the film layers and enclose each other to form an annular groove 11. This design can ensure the smooth transition and fixation of the nylon thread around the periphery of the lens, while providing stable support, ensuring comfort and stability when worn, and making the installation and fixation of the nylon thread simple, which is convenient for the assembly and maintenance of half-frame glasses.

[0036] The anti-ultraviolet film layer 2 is generally PMMA (polymethyl methacrylate), which is a commonly used anti-ultraviolet film material with high transparency, good weather resistance and processability. The PMMA film can enhance its ultraviolet blocking ability by adding UV (ultraviolet) absorbers or by applying ultraviolet absorbing coatings. The anti-blue light film mainly achieves the blocking effect on blue light by absorbing or reflecting blue light. Its material generally includes organic silicon and inorganic silicon stacked layers, as well as various blue light absorbers, such as organic, organic-inorganic hybrid and inorganic types. The first protective layer 3 and the second protective layer 5 are respectively attached to the anti-ultraviolet film layer 2 and the anti-blue light film layer 4. Specifically, the protective layer and the film layer can be tightly combined by using adhesives such as optical adhesive (OCA) or liquid optical adhesive (LOCA).

[0037] In some embodiments of the present invention, both the first protective layer 3 and the second protective layer 5 are diamond film layers. Diamond film layers have extremely high hardness, which can provide the lens with extremely high wear resistance, effectively resisting scratches and abrasion, thereby extending the service life of the lens. Diamond film layers also have wide spectral transmittance, especially in the infrared band, which enables the lens to maintain high transparency while reducing light reflection loss and improving light transmittance. In addition, diamond film layers have good chemical stability and can resist corrosion from various chemicals, which is very beneficial for protecting the lens from the effects of chemicals that may be encountered in daily use.

[0038] In some embodiments of the present invention, a first lamination groove 31 is provided on the side of the first protective layer 3 facing the second protective layer 5, and the anti-ultraviolet film layer 2 is attached to the bottom wall of the first lamination groove 31; a second lamination groove 51 is provided on the side of the second protective layer 5 facing the first protective layer 3, and the anti-blue light film layer 4 is attached to the bottom wall of the second lamination groove 51. By providing the lamination grooves, the edges of the two protective layers not only extend beyond the two film layers, but also wrap around the two film layers, thereby improving the protective effect and increasing the contact area between the film layer and the protective layer, thereby improving the adhesion of the film layer and reducing the risk of the film layer falling off due to friction or impact during daily use.

[0039] In some embodiments of the present invention, the ratio of the depth of the first bonding groove 31 to the overall thickness of the first protective layer 3 is greater than or equal to 1 / 3 and less than or equal to 2 / 3. Specifically, this ratio can be 1 / 3, 1 / 2, 2 / 3, etc. This ensures sufficient contact area between the UV-blocking film 2 and the first protective layer 3, thereby improving adhesion between the two. This helps maintain the stability of the film layer during prolonged use and repeated flexing, extending the life of the lens. It also ensures the local strength of the protective layer, preventing a decrease in strength due to excessive groove depth. This ensures that the protective layer is less susceptible to cracking or damage during assembly and use.

[0040] Furthermore, in some embodiments of the present invention, the depth of the first bonding groove 31 is greater than or equal to 0.5 mm and less than or equal to 1 mm; the depth of the second bonding groove 51 is greater than or equal to 0.5 mm and less than or equal to 1 mm. The depth of both bonding grooves can be 0.5 mm, 0.6 mm, 0.7 mm, 1 mm, etc. Within this depth range, the structural strength of the protective layer can be ensured, avoiding localized strength reduction of the material due to excessive groove depth, thereby improving the durability and impact resistance of the entire eyeglass lens and ensuring sufficient adhesion between the protective layer and the film layer.

[0041] In some embodiments of the present invention, the opening width of the annular groove 11 is less than or equal to 1 mm. The smaller opening width ensures that the nylon thread is stably positioned in the annular groove 11, reducing the possibility of loosening or displacement, thereby improving the overall structural stability of the half-frame glasses while not affecting the assembly of the nylon thread.

[0042] In some embodiments of the present invention, the eyeglass lens structure 100 further includes two antistatic layers 7, each of which is attached to the side of the first protective layer 3 facing away from the second protective layer 5. The antistatic layers 7 effectively neutralize static electricity generated on the lens surface, reducing the adhesion of dust and other particulate matter to the lens due to static electricity, thereby maintaining the cleanliness of the lens. Furthermore, since the antistatic layers 7 reduce dust adhesion, cleaning the lens becomes easier, and the number of times a user needs to clean the lens during daily use is also reduced.

[0043] In some embodiments of the present invention, the eyeglass lens structure 100 further includes two oleophobic layers 6, disposed on opposite sides of the two antistatic layers 7. The oleophobic layers 6 are typically made of nano-silicon dioxide and coated on the surface via a spraying process, exhibiting excellent light transmittance, hydrophobicity, and oleophobicity. This coating reduces the adhesion of grease and fingerprints, making cleaning easier and improving the cleanliness and aesthetics of the screen. For eyeglass lenses, this means that when the wearer wears the glasses, skin oil and sweat are less likely to contaminate the lenses, maintaining lens clarity and comfort.

[0044] The material of the oleophobic layer 6 can also be trimethoxysilane with perfluoropolyether functional group. The oleophobic layer 6 is evenly coated on the lens body 1. The oleophobic layer 6 is not limited here.

[0045] In some embodiments of the present invention, the antistatic layer 7 is an indium tin oxide film. The relatively low resistivity of indium tin oxide (ITO) film enables it to effectively conduct charge and reduce the generation and accumulation of static electricity. ITO film also has high transmittance in the visible light range, allowing it to function as the antistatic layer 7 without affecting the transparency of the eyeglass lens, maintaining good visual clarity.

[0046] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A spectacle lens structure (100), applied to half-frame glasses, the half-frame glasses comprising a frame and a nylon thread connected to the frame, characterized in that: include: Lens body (1); an anti-ultraviolet film layer (2) provided on one side of the lens body (1); An anti-blue light film layer (4) is provided on the other side of the lens body (1); A first protective layer (3) is adhered to a surface of the anti-ultraviolet film layer (2) facing away from the lens body (1), and the periphery of the first protective layer (3) exceeds the periphery of the anti-ultraviolet film layer (2); The second protective layer (5) is arranged on the side of the anti-blue light film layer (4) away from the lens body (1), and the periphery of the first protective layer (3) exceeds the periphery of the anti-blue light film layer (4), and is combined with the periphery of the first protective layer (3) and the lens body to form an annular groove, and the annular groove is used for the nylon thread to be bundled.

2. The spectacle lens structure (100) according to claim 1, characterized in that: The first protective layer (3) is a diamond film layer; and / or, The second protective layer (5) is a diamond film layer.

3. The spectacle lens structure (100) according to claim 1, characterized in that: A first bonding groove (31) is provided on a side of the first protective layer (3) facing the second protective layer (5), and the anti-ultraviolet film layer (2) is bonded to the bottom wall of the first bonding groove (31); A second bonding groove (51) is provided on a side of the second protective layer (5) facing the first protective layer (3), and the anti-blue light film layer (4) is bonded to the bottom wall of the second bonding groove (51).

4. The spectacle lens structure (100) according to claim 3, characterized in that: The ratio of the groove depth of the first fitting groove (31) to the overall thickness of the first protective layer (3) is greater than or equal to 1 / 3 and less than or equal to 2 / 3.

5. The spectacle lens structure (100) according to claim 4, characterized in that: The depth of the first fitting groove (31) is greater than or equal to 0.5 mm and less than or equal to 1 mm; The groove depth of the second bonding groove (51) is greater than or equal to 0.5 mm and less than or equal to 1 mm.

6. The spectacle lens structure (100) according to claim 1, characterized in that: The opening width of the annular groove (11) is less than or equal to 1 mm.

7. The spectacle lens structure (100) according to any one of claims 1 to 6, characterized in that: The eyeglass lens structure (100) further comprises two antistatic layers (7), and the two antistatic layers (7) are respectively attached to the side of the first protective layer (3) away from the second protective layer (5).

8. The spectacle lens structure (100) according to claim 7, characterized in that: The eyeglass lens structure (100) further comprises two oleophobic layers (6), wherein the two oleophobic layers (6) are respectively arranged on opposite sides of the two antistatic layers (7).

9. The spectacle lens structure (100) according to claim 8, characterized in that: The oleophobic layer (6) is a silicon dioxide coating.

10. The eyeglass lens structure (100) according to claim 7, characterized in that: The antistatic layer (7) is an indium tin oxide film.

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