A double-sided composite control lens

Abstract

The utility model relates to myopia prevention and control lens technical field, especially a double -sided composite prevention and control lens. Double -sided composite prevention and control lens includes lens body, microlens off -focus area and fog view area, and the optical center is formed to the center of lens body, and microlens off -focus area sets up in the first curve of lens body, and fog view area sets up in the second curve of lens body. Because the first curve of lens body sets up microlens off -focus area, and fog view area is arranged in the second curve, microlens off -focus area provides high -intensity off -focus stimulation, and acts on the peripheral imaging of retina, and the fog view area of second curve can reduce the contrast of peripheral retina, and while correcting central vision, under the double -effect mechanism of peripheral off -focus and contrast control, double -action inhibits the too fast growth of eye axis, and improves myopia prevention and control efficiency. Meanwhile, because the projection area of microlens off -focus area and fog view area coincides, the optimization ability to the peripheral imaging of retina is enhanced, and the precise intervention to the peripheral hypermetropia off -focus of retina is realized.

Description

Technical Field

[0001] This utility model relates to the field of myopia control lens technology, and in particular to a double-sided composite control lens. Background Technology

[0002] In recent years, myopia prevention and control among adolescents has become a global public health issue. Studies have shown that myopia development is closely related to peripheral hyperopic defocus of the retina. Traditional optical lenses have the following drawbacks: single-vision lenses only correct central vision and cannot intervene in peripheral retinal imaging quality, making it difficult to effectively inhibit axial elongation and meet diverse myopia prevention and control needs; single-sided microlens defocus lenses, while generating defocus signals, have a single dimension of control, and patients' eyes easily adapt to this single defocus signal after prolonged wear. Existing double-sided composite lenses are insufficient in terms of the precision of defocus signal control and multi-dimensional stimulation effects, failing to optimize peripheral retinal imaging. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a double-sided composite control lens, which solves the technical problem of poor myopia control effect.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] This utility model provides a double-sided composite control lens, comprising: a lens body, the center of which forms an optical center; a microlens defocusing area disposed on a first curved surface of the lens body, the microlens defocusing area including multiple microlens rings, the multiple microlens rings being arranged sequentially from the inside to the outside with the optical center as the center, each microlens ring including multiple circumferentially adjacent microlens units; and a fogging area disposed on a second curved surface of the lens body, the fogging area including multiple fogging rings, the multiple fogging rings being arranged sequentially from the inside to the outside with the optical center as the center, each fogging ring including multiple circumferentially spaced fogging units; the forward projection areas of the microlens defocusing area and the fogging area coincide.

[0008] Preferably, the fogging unit is a groove recessed into the lens body, and the inner surface of the groove has an arc-shaped structure.

[0009] Preferably, the opening width of the groove is 0.15-0.35 mm.

[0010] Preferably, the spacing between two adjacent fog-viewing rings is half the spacing between two adjacent microlens rings.

[0011] Preferably, the spacing between two adjacent fog-viewing rings is 0.5-1.5 mm.

[0012] Preferably, the circumferential spacing between two adjacent fog-viewing units on the same fog-viewing ring is the same, and the circumferential spacing is 0.5-0.7mm.

[0013] Preferably, the projection areas of the microlens defocus area and the fog vision area overlap to form a ring, and the outer diameter of the ring is 40mm-65mm.

[0014] Preferably, the microlens unit is a protrusion protruding from the lens body; the outer surface of the protrusion has an arc-shaped structure, and the protrusion is integrally formed with the lens body.

[0015] Preferably, the microlens defocusing zone includes 8-11 microlens rings.

[0016] (III) Beneficial Effects

[0017] The beneficial effects of this utility model are:

[0018] This invention relates to a double-sided composite control lens, comprising a lens body, a microlens defocusing area, and a fogging area. The center of the lens body forms an optical center. The microlens defocusing area is located on the first curved surface of the lens body and includes multiple microlens rings spaced outwards from the optical center. Each microlens ring includes multiple circumferentially adjacent microlens units. The fogging area is located on the second curved surface of the lens body and includes multiple fogging rings spaced outwards from the optical center. Each fogging ring includes multiple circumferentially spaced fogging units. Because the microlens defocusing area is located on the first curved surface (away from the eye) and the fogging area is located on the second curved surface (closer to the eye), the microlens defocusing area provides high-intensity defocus stimulation, acting on peripheral retinal imaging. The fogging zone of the second curved surface reduces the contrast of the peripheral retina. While correcting central vision, it also inhibits the rapid growth of the axial length of the eye through a dual mechanism of peripheral defocus and contrast regulation, thus improving the efficiency of myopia control. At the same time, since the projection areas of the microlens defocus zone and the fogging zone overlap, the optimization capability of peripheral retinal imaging is enhanced, enabling precise intervention for hyperopic defocus of the peripheral retina. Attached Figure Description

[0019] Figure 1 A schematic diagram of the first-view structure of a double-sided composite air-control lens;

[0020] Figure 2 A schematic diagram of the second perspective of a double-sided composite anti-disease lens;

[0021] Figure 3 This is a front view of a double-sided composite air-control lens;

[0022] Figure 4 for Figure 3 A cross-sectional view along the AA direction;

[0023] Figure 5 for Figure 4 An enlarged schematic diagram of part A in the middle.

[0024] [Explanation of Labels in the Attached Image]

[0025] 1: Lens body; 11: Optical center;

[0026] 2: Fog View Zone; 21: Fog View Unit;

[0027] 3: Microlens defocus area; 31: Microlens unit. Detailed Implementation

[0028] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0029] like Figure 1-2 As shown, this embodiment of the invention provides a dual-sided composite security lens, which includes a lens body 1, a microlens defocusing area 3, and a fogging area 2. An optical center 11 is formed at the center of the lens body 1. The microlens defocusing area 3 is disposed on a first curved surface of the lens body 1, and the fogging area 2 is disposed on a second curved surface of the lens body 1. The first curved surface of the dual-sided composite security lens has a first radius of curvature, and the second curved surface has a second radius of curvature. The first and second radii of curvature are configured such that a light beam passing through the optical center 11 can be focused onto the retina. The first curved surface is the side furthest from the eye, and the second curved surface is the side closest to the eye.

[0030] like Figure 3 As shown, the microlens defocusing region 3 includes 8-11 microlens rings, which are arranged sequentially from the inside to the outside with the optical center 11 as the center. Each microlens ring includes multiple circumferentially adjacent microlens units 31. The fogging region 2 includes multiple fogging rings, which are arranged sequentially from the inside to the outside with the optical center 11 as the center. Each fogging ring includes multiple circumferentially spaced fogging units 21.

[0031] Because the first curved surface of the lens body 1 is provided with a microlens defocus zone 3 and the second curved surface is provided with a fogging zone 2, the microlens defocus zone 3 provides high-intensity defocus stimulation, which acts on the peripheral imaging of the retina. The fogging zone 2 of the second curved surface can reduce the contrast of the peripheral retina. While correcting central vision, it inhibits the rapid growth of the axial length of the eye through the dual mechanism of peripheral defocus and contrast regulation, thereby improving the efficiency of myopia prevention and control.

[0032] Meanwhile, since the projection areas of the microlens defocus area and the fogging area 2 overlap, the optimization capability for peripheral retinal imaging is enhanced, enabling precise intervention for hyperopic defocus in the peripheral retina. It should be noted that overlapping projection areas refer to the overlap of the projection of the ring formed by multiple microlens bands in the microlens defocus area 3 with the ring formed by multiple fogging bands in the fogging area 2 during forward projection.

[0033] like Figure 4-5 As shown, the fogging unit 21 is a recessed groove on the lens body 1, and the inner surface of the groove has an arc-shaped structure, specifically a partial spherical surface. Compared with other shapes of fogging units 21, it can more uniformly change the light propagation path without affecting the central vision correction, thereby more effectively interfering with the imaging of the peripheral retina, further enhancing the contrast reduction effect of the fogging zone 2, and strengthening the inhibitory effect on myopia development.

[0034] In this embodiment, the spacing between two adjacent fogging rings is half the spacing between two adjacent microlens rings, creating a complementary control effect in space. The microlens defocus zone 3 provides high-intensity defocus stimulation, while the fogging zone 2 reduces contrast. The coordinated spacing between the two enables comprehensive optimization of peripheral retinal imaging, avoiding control blind spots and improving the overall myopia control effect.

[0035] In this embodiment, the opening width of the groove is 0.15-0.35mm. While ensuring that the fogging area 2 can produce a sufficient effect of reducing retinal contrast, it avoids affecting the overall optical performance of the lens due to an excessively wide opening, or causing insufficient contrast control effect due to an excessively narrow opening. This ensures that the fogging unit 21 can effectively reduce the contrast of the peripheral retina, while maintaining the light transmittance and optical stability of the lens, thus achieving a balance between myopia control effect and lens performance.

[0036] The spacing between two adjacent fogging rings is 0.5-1.5mm, ensuring that the distribution of fogging rings on the lens is neither too dense, causing mutual interference in optical performance, nor too sparse, affecting the contrast control effect. Appropriate spacing allows fogging zone 2 to produce a uniform and effective contrast reduction effect, working synergistically with the microlens defocus zone 3 to continuously and stably inhibit axial elongation, improving the effectiveness and stability of myopia control.

[0037] In this design, the circumferential spacing between two adjacent fogging units 21 on the same fogging ring is the same, and the circumferential spacing is 0.5-0.7mm. This ensures that the fogging units 21 are evenly distributed on the fogging ring, making the reduction of peripheral contrast of the fogging area 2 on the retina more uniform and stable. It avoids excessive or insufficient local contrast regulation caused by uneven distribution of fogging units 21, thereby achieving precise optimization of the imaging quality of the peripheral retina and further improving the myopia control effect of the lens.

[0038] Preferably, the defocus area of ​​the microlens and the projection area of ​​the fogging area 2 coincide to form a ring with an outer diameter of 40mm-65mm. This ring can accurately cover the key peripheral area of ​​the retina, allowing the high-intensity defocus stimulation of the microlens defocus area 3 and the contrast regulation of the fogging area 2 to focus on the peripheral retina, which has a greater impact on myopia development. This enhances the optimization effect on peripheral retinal imaging, more effectively inhibits axial elongation, and ensures that the optical performance of the central area of ​​the lens used to correct central vision is not affected.

[0039] like Figure 5 As shown, the microlens unit 31 is a protrusion on the lens body 1. The protrusion has an arc-shaped structure, specifically a partial spherical surface, which can precisely control light refraction and generate a stable and high-intensity defocus signal. Compared with microlens units 31 of other shapes, its optical performance is superior, and it can more effectively stimulate the peripheral retina and inhibit axial elongation. The protrusion is integrally formed with the lens body 1, ensuring the structural stability of the microlens unit 31 and the lens body 1, avoiding problems such as unstable optical performance or structural damage that may be caused by assembly or bonding, improving the reliability and service life of the lens, while reducing the complexity and cost of the manufacturing process.

[0040] In the description of this utility model, it should be understood that 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0042] 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 indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A double-sided composite air-protection lens, characterized in that, include: The lens body, wherein the center of the lens body forms an optical center; The microlens defocusing area is disposed on the first curved surface of the lens body. The microlens defocusing area includes multiple microlens rings, which are arranged sequentially from the inside to the outside with the optical center as the center. Each microlens ring includes multiple microlens units arranged circumferentially adjacent to each other. A fogging area is provided on the second curved surface of the lens body. The fogging area includes multiple fogging rings, which are arranged sequentially from the inside to the outside with the optical center as the center. Each fogging ring includes multiple fogging units arranged circumferentially. The defocus area of ​​the microlens coincides with the forward projection area of ​​the fog vision area.

2. The double-sided composite control lens as described in claim 1, characterized in that: The fogging unit is a groove recessed into the lens body, and the inner surface of the groove has an arc-shaped structure.

3. The double-sided composite control lens as described in claim 2, characterized in that: The opening width of the groove is 0.15-0.35mm.

4. The double-sided composite control lens as described in claim 1, characterized in that: The spacing between two adjacent fog-viewing rings is half the spacing between two adjacent microlens rings.

5. The double-sided composite control lens as described in claim 4, characterized in that: The spacing between two adjacent fog-viewing rings is 0.5-1.5 mm.

6. The double-sided composite control lens as described in claim 1, characterized in that, The circumferential spacing between two adjacent fog-viewing units on the same fog-viewing ring is the same, and the circumferential spacing is 0.5-0.7mm.

7. The double-sided composite control lens as described in claim 1, characterized in that: The defocused area of ​​the microlens coincides with the projection area of ​​the fogged area to form a ring, and the outer diameter of the ring is 40mm-65mm.

8. The double-sided composite control lens as described in claim 1, characterized in that: The microlens unit is a protrusion that protrudes from the lens body; The outer surface of the protrusion has an arc-shaped structure, and the protrusion is integrally formed with the lens body.

9. The double-sided composite control lens as described in claim 1, characterized in that: The microlens defocusing region includes 8-11 microlens rings.

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