Multilayer composite contact lens

Abstract

The utility model discloses a multi-layer composite contact lens which comprises a base layer, a protruding layer is arranged in the center of the outer surface of the base layer, a cavity is formed in the base layer, a protective edge is arranged on the side face of the cavity and fixedly connected to the edge of the base layer, an avoiding groove is formed in the center of the interior of the cavity, and the protective edge is fixedly connected to the edge of the base layer. The avoiding groove is located in the protruding layer, an anti-dazzle layer is fixedly compounded on the outer surface of the protruding layer, the edge position of the anti-dazzle layer is compositely connected to the outer surface of the base layer, a water retention layer is fixedly compounded on the inner side surface of the cavity, and a light reflection layer is fixedly compounded on the outer surface of the base layer. An antibacterial layer is fixedly compounded on the outer surface of the light reflecting layer, the water retention effect of the wearing position is improved, the comfort is further improved, the anti-dazzle layer and the light reflecting layer are connected, the light quality is guaranteed, the antibacterial layer is combined, the wearing safety is guaranteed, composite forming is facilitated, and wearing and using are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of contact lenses, more specifically, to a multi-layer composite contact lens. BACKGROUND

[0002] Lens has developed for a long time, used in various fields such as optical instruments or glasses, most of the lens or glasses pay attention to modeling design and optical lens function.Previous technology has so-called various different material optical lenses, including plastic, glass, etc.In order to meet the light and thin trend, general glasses lens is made of plastic, can be coated on it, for example, anti-reflection film, ultraviolet resistant film, etc., but this kind of process needs to use coating machine, for example, spin coating machine, to coat the film layer.And this kind of device is very valuable, so not only valuable instruments are needed, but also many steps and working hours are additionally increased.Because the film layer is coated on the surface of the lens, it is easy to scratch and damage, and the effect of the entire lens itself containing ultraviolet resistant material is limited.

[0003] And the application publication number CN 110879481 A discloses a kind of anti-glare contact lenses, which includes contact lens body, contact lens body is made of silicon hydrogel, including optical concave surface and optical convex surface, wherein optical convex surface has central surface corresponding to pupil and surrounding surface located around central surface;First light reflection layer is vacuum coated on central surface;Second light reflection layer is vacuum coated on surrounding surface, first light reflection layer is darker than second light reflection layer;And multilayer dielectric layer is vacuum coated on first light reflection layer and second light reflection layer.The application improves the anti-glare effect by vacuum coating first light reflection layer and second light reflection layer on contact lens body, and avoids the trouble of single and lack of anti-glare of previous contact lenses.

[0004] In the above disclosure result, the multi-layer structure with arc shape is used for composite preparation, which is not conducive to fitting the eyeball for wearing, has poor water retention effect at the wearing position, and lacks convex layer, and the fitting position cannot be separated from the pupil, which further affects the water retention effect and comfort, and has poor adaptability, and needs to be improved. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model aims to provide a kind of multi-layer composite contact lenses, through the base layer connection convex layer, can form ladder structure, separate wearing position and viewing position, improve comfort, and improve the water retention effect of wearing position by setting water retention layer, further improve comfort, and meet the connection anti-glare layer and light reflection layer, ensure light quality, combined with antibacterial layer, ensure the safety of wearing, it is beneficial to composite forming, convenient to wear and use.

[0006] To solve the above problems, the utility model adopts the following technical scheme.

[0007] A multilayer composite contact lens includes a base layer, a protruding layer at the center of the outer surface of the base layer, a cavity inside the base layer, a protective edge on the side of the cavity, the protective edge being fixedly connected to the edge of the base layer, an avoidance groove at the center of the cavity, the avoidance groove being located inside the protruding layer, an anti-glare layer being fixedly laminated to the outer surface of the protruding layer, the edge of the anti-glare layer being fixedly laminated to the outer surface of the base layer, a water-retaining layer being fixedly laminated to the inner surface of the cavity, a light-reflecting layer being fixedly laminated to the outer surface of the base layer, and an antibacterial layer being fixedly laminated to the outer surface of the light-reflecting layer.

[0008] Furthermore, the base layer has a hemispherical structure, and the cavity is a hemispherical cavity.

[0009] Furthermore, the thickness of the protruding layer is consistent with the thickness of the base layer.

[0010] Furthermore, the sum of the thicknesses of the light-reflecting layer and the antibacterial layer is equal to the thickness of the anti-glare layer. By setting the thickness of each layer, the uniformity of the overall material is ensured, the quality of the glasses is improved, the wearing and interchangeability are guaranteed, and production and use are facilitated.

[0011] Compared with existing technologies, the advantages of this utility model are:

[0012] (1) This solution can form a stepped structure by connecting the base layer to the protruding layer, which separates the wearing position and the viewing position, improving comfort. Furthermore, by setting a water-retaining layer, the water retention effect of the wearing position is improved, further enhancing comfort. It also meets the requirements of connecting the anti-glare layer and the light reflection layer to ensure light quality. Combined with the antibacterial layer, it ensures the safety of wearing. It is also conducive to composite molding and convenient to wear and use.

[0013] (2) By setting the thickness of each layer, the uniformity of the overall material is ensured, the quality of the glasses is improved, the wearing and interchangeability are guaranteed, and production and use are convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the planar structure cross-section of this utility model;

[0016] Figure 3 This is a partial cross-sectional view of the present invention.

[0017] Explanation of the labels in the diagram:

[0018] 1. Base layer, 11. Protruding layer, 12. Cavity, 13. Protective edge, 14. Avoidance groove, 15. Anti-glare layer, 16. Water-retaining layer, 17. Light-reflecting layer, 18. Antibacterial layer. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0020] Please refer to Figure 1 、 Figure 2 and Figure 3 , a kind of multilayer composite contact lens, including base layer 1, the outer surface center position of base layer 1 is equipped with convex layer 11, can form the basic functional area of glasses, and is worn to eyeball by base layer 1, and convex layer 11 is positioned to pupil position, and can be separated and staggered, reduce the stimulation to pupil position, improve wearing effect and comfort, the inside of base layer 1 is equipped with cavity 12, the side of cavity 12 is equipped with protective edge 13, the section of protective edge 13 is processed into circular, can passivate edge position, improve safety, protective edge 13 is fixedly connected to the edge position of base layer 1, the inside center position of cavity 12 is equipped with avoiding recess 14, avoiding recess 14 is located in the inside of convex layer 11, setting avoiding recess 14, on the one hand can guarantee the accuracy of the thickness of convex layer 11, improve functional quality, on the other hand can form recessed position, can increase water-retention lubricating effect, high adaptability, the outer surface of convex layer 11 is fixedly combined with anti-glare layer 15, the edge position of anti-glare layer 15 is combined with the outer surface of base layer 1, the inside surface of cavity 12 is fixedly combined with water-retention layer 16, the outer surface of base layer 1 is fixedly combined with light reflection layer 17, the outer surface of light reflection layer 17 is fixedly combined with antibacterial layer 18, adopts deposition composite technology to form antibacterial layer 18, improves composite effect, and the surface of antibacterial layer 18 is easily contacted when wearing, so bacteria can be reduced to adhere, improve use safety, facilitate composite use.

[0021] Base layer 1 is semispherical structure, cavity 12 is semispherical cavity, the thickness of convex layer 11 and the thickness of base layer 1 are consistent, the sum of the thickness of light reflection layer 17 and antibacterial layer 18 is equal to the thickness of anti-glare layer 15, by setting the thickness of each layer, guarantee the uniformity of overall material, improve glasses quality, guarantee wearing and interchange effect, facilitate production and use.

[0022] The above is only the preferred specific embodiment of the utility model; but the protection scope of the utility model is not limited to this. Any skilled person in the art within the technical range disclosed by the utility model, according to the technical scheme of the utility model and its improved conception, is equivalent to replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A multilayer composite contact lens, comprising a base layer (1), characterized in that: The outer surface of the base layer (1) is provided with a protruding layer (11) at the center position. The base layer (1) is provided with a cavity (12) inside. The side of the cavity (12) is provided with a protective edge (13). The protective edge (13) is fixedly connected to the edge position of the base layer (1). The cavity (12) is provided with an avoidance groove (14) at the center position inside. The avoidance groove (14) is located inside the protruding layer (11). The outer surface of the protruding layer (11) is fixedly laminated with an anti-glare layer (15). The edge position of the anti-glare layer (15) is laminated to the outer surface of the base layer (1). The inner surface of the cavity (12) is fixedly laminated with a water-retaining layer (16). The outer surface of the base layer (1) is fixedly laminated with a light-reflecting layer (17). The outer surface of the light-reflecting layer (17) is fixedly laminated with an antibacterial layer (18).

2. The multilayer composite contact lens according to claim 1, characterized in that: The base layer (1) is a hemispherical structure, and the cavity (12) is a hemispherical cavity.

3. The multilayer composite contact lens according to claim 1, characterized in that: The thickness of the protruding layer (11) is the same as the thickness of the base layer (1).

4. The multilayer composite contact lens according to claim 1, characterized in that: The sum of the thicknesses of the light-reflecting layer (17) and the antibacterial layer (18) is equal to the thickness of the anti-glare layer (15).

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