Myopia prevention and control optical lens and myopia suppression treatment instrument

Abstract

The present invention belongs to the technical field of optical lenses and discloses an optical lens for myopia prevention and control. The lens includes a central optical zone and a peripheral myopia defocus zone. The diopter of the peripheral myopia defocus zone is greater than that of the central optical zone. The peripheral myopia defocus zone is provided with a plurality of defocus microlens rings surrounding the central optical zone, and a spacing zone is formed between two adjacent defocus microlens rings. The defocus microlens rings include a plurality of microlenses arranged in a ring array. The alternating arrangement of the multi-stage defocus microlens rings and the spacing zone reduces the defocus difference between the central optical zone and the peripheral myopia defocus zone, forming a buffer zone for vision correction, helping users quickly adapt to the change in optical power after wearing, so as to adapt to different visual needs from near to far, thereby improving the wearing comfort of the user.

Description

Technical Field

[0001] The present invention relates to the field of lens technology, and in particular to an optical lens for preventing and controlling myopia and a myopia suppression treatment instrument. Background Art

[0002] Defocus refers to the situation where an image that should be focused on the retina is not focused on the retina, but is focused in front of or behind the retina. Focusing behind the retina is called hyperopic defocus, and focusing in front of the retina is called myopic defocus. Hyperopic defocus can easily induce compensatory growth of the eye axis, thereby leading to the progression of myopia. Defocus lenses change the hyperopic defocus that occurs in the peripheral vision of ordinary optical lenses, that is, the peripheral vision focus falls behind the retina, to myopic defocus, that is, the focus of peripheral vision falls in front of the retina, thereby inhibiting the growth of the eye axis and effectively slowing down and / or controlling the progression of myopia.

[0003] In the prior art, peripheral defocus glasses are provided with a defocus ring in the defocus area of ​​the base lens. However, a problem with this structure is that when the optical power difference between the defocus element and the central optical area is large, the wearing comfort of the user is affected.

[0004] In view of this, it is necessary to improve the defocus glasses in the prior art to solve the technical problem of low comfort when wearing them. Summary of the Invention

[0005] The purpose of the present invention is to provide an optical lens for preventing and controlling myopia and a myopia suppression treatment instrument to solve the above technical problems.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A myopia prevention and control optical lens, the lens comprising a central optical zone and a peripheral myopia defocus zone, the refractive power of the peripheral myopia defocus zone being greater than that of the central optical zone, the peripheral myopia defocus zone being provided with a plurality of stages of annularly arranged defocus microlens rings surrounding the central optical zone, a spacing zone being formed between two adjacent stages of the defocus microlens rings; the defocus microlens rings comprising a plurality of microlenses arranged in an annular array.

[0008] Optionally, along the radial direction outward from the central optical zone, the diameters D of the plurality of microlenses are linearly increased with a first difference, and the first difference is greater than 0; wherein the defocus amounts of the microlenses of the plurality of levels of the defocus microlens rings are equal.

[0009] Optionally, along the radial direction outward from the central optical zone, the defocus amount of the peripheral myopia defocus zone is linearly increased between 1D and 1.5D to form a primary myopia defocus zone; and the defocus microlens rings arranged in several levels of annular shapes form a secondary myopia defocus zone.

[0010] Optionally, along the radial direction outward from the central optical zone, the width of any of the spacing zones is a constant k.

[0011] Optionally, along the radial direction outward from the central optical zone, the width of the spacing zone is linearly increased by the second difference.

[0012] Optionally, the lens has opposite front and back surfaces;

[0013] The primary myopia defocus area and the secondary myopia defocus area are simultaneously provided on the front surface;

[0014] Alternatively, the primary myopia defocus area is provided on the rear surface, and the secondary myopia defocus area is provided on the front surface.

[0015] Optionally, an enhanced defocus microlens ring is further provided on the peripheral myopia defocus area, wherein the enhanced defocus microlens ring includes a plurality of enhanced defocus microlenses arranged in a ring array, and the defocus amounts of the plurality of enhanced defocus microlenses are equal and greater than the defocus amount of the microlens;

[0016] The enhanced defocus microlens ring is any two-level defocus microlens ring between the third and sixth levels from the inside to the outside of the peripheral myopia defocus area.

[0017] Optionally, the distance between any two adjacent microlenses on any defocused microlens ring is equal.

[0018] Optionally, the number of the microlenses in the peripheral myopia defocus zone reaches a maximum when two adjacent microlenses are connected and intersect at a point;

[0019] The number of the microlenses in the peripheral myopia defocus zone ranges from 80% to 100% of the maximum value.

[0020] The present invention also provides a myopia suppression treatment instrument, comprising the myopia prevention and control optical lens as described above.

[0021] Compared with the existing technology, the present invention has the following beneficial effects: the center position of the lens is the central optical zone, which is used for conventional vision correction, that is, to make the incident light from a distance form a clear focus on the retina; the peripheral myopia defocus zone and the defocus microlens ring on the periphery are alternately arranged, which reduces the defocus difference between the central optical zone and the peripheral myopia defocus zone, forming a buffer zone for vision correction, helping users to quickly adapt to the changes in optical focal length after wearing, so that they can adapt to different visual needs from near to far, thereby improving the user's wearing comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 these drawings without paying any creative work.

[0023] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0024] Figure 1 This is one of the schematic layout diagrams of the myopia prevention and control optical lenses in the first embodiment;

[0025] Figure 2 This is the second schematic diagram of the layout of the myopia prevention and control optical lens in the first embodiment;

[0026] Figure 3 The myopia prevention and control optical lens in this embodiment Figure 2 A partial enlarged layout diagram at center A;

[0027] Figure 4 This is the third schematic diagram of the layout of the myopia prevention and control optical lens in the first embodiment;

[0028] Figure 5 This is the fourth schematic diagram of the layout of the myopia prevention and control optical lens in the first embodiment;

[0029] Figure 6 Schematic diagram of the change in defocus amount of the central optical zone and the peripheral myopia defocus zone of the myopia prevention and control optical lens in the first embodiment;

[0030] Figure 7 This is a schematic diagram of the cross-sectional layout of the myopia prevention and control optical lens in the first embodiment.

[0031] Figure 8 This is a table showing the change in the defocus amount of the defocus microlens ring from the inside to the outside of the myopia prevention and control optical lens in the second embodiment. DETAILED DESCRIPTION

[0032] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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 work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0034] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0035] Example 1:

[0036] Combine Figure 1 and Figure 8 As shown, the present invention provides a myopia prevention and control optical lens 1, the lens 1 includes a central optical zone 11 and a peripheral myopia defocus zone 12, the refractive power of the peripheral myopia defocus zone 12 is greater than the refractive power of the central optical zone 11, and the peripheral myopia defocus zone 12 is provided with a plurality of annularly arranged defocus microlens rings 2 surrounding the central optical zone 11, and a spacing zone 13 is formed between two adjacent defocus microlens rings 2; the defocus microlens ring 2 includes a plurality of microlenses 21 arranged in a ring array.

[0037] The arrangement of the defocused microlens ring 2 is as follows Figure 1 In the embodiment, several defocus rings of different diameters are arranged along the same axis; the arrangement of the myopia prevention and control optical lens 1 is arranged in the peripheral myopia defocus area 12 according to a preset arrangement rule, such as the arrangement rule of a ring array;

[0038] The working principle of the present invention is as follows: the center position of the lens 1 is the central optical zone 11, which is used for conventional vision correction, that is, to make the incident light form a clear focus on the retina; the peripheral myopia defocus zone 12 on the periphery is provided with a plurality of levels of defocus microlens rings 2, and the defocus microlens ring 2 includes a plurality of microlenses 21 arranged in a ring array, so that the microlenses 21 are arranged around the central optical zone. The alternating arrangement of the multi-level defocus microlens rings 2 and the spacing zone reduces the defocus difference between the central optical zone and the peripheral myopia defocus zone, forming a buffer zone for vision correction, helping users quickly adapt to the changes in optical focal length after wearing, thereby improving the wearing comfort of the user.

[0039] Specifically, the diameters D of the plurality of microlenses 21 are linearly increased with a first difference, where the first difference is greater than 0; and the defocus amounts of the microlenses 21 of the plurality of levels of defocus microlens rings 2 are equal; this progressive design helps users better adapt to the defocus zone and reduces the drastic change in visual comfort.

[0040] Preferably, the defocus of each microlens 21 is 3.5D. The microlens 21 closest to the central optical zone 11 is the first microlens 21, and the defocus of the Nth microlens 21 is 3.5D, where N is a natural number greater than 1.

[0041] Specifically, the defocus amounts of the multiple defocused microlens rings 2 and microlenses 21 are equal. This consistency helps maintain visual quality while allowing users to adapt to changes in light focus at different viewing distances.

[0042] This design, called a "defocus lens" or "multifocal lens," is designed to adjust the eye's focus on light to strengthen the eye's ability to accommodate and delay or even stop the progression of myopia.

[0043] In general, the myopia prevention and control optical lenses of this solution have the following advantages:

[0044] 1. Improved peripheral defocus effectiveness: The diameter and spacing of the microlenses gradually increase from the inside to the outside of the lens. This progressive arrangement of microlenses matches the distribution pattern of the receptive fields of brain neurons on the retina, which helps to trigger a strong neuronal response to slow eye growth.

[0045] Second, improved visual adaptability and comfort: The primary and secondary peripheral defocus designs provide a gradual transition from central to peripheral vision, reducing discontinuity and oscillation, thereby improving adaptability. The enhanced defocus microlenses increase the defocus amplitude in the second to sixth defocus microlens rings. This increases the defocus range without interfering with central vision, thus alleviating the conflict between enhancing myopia prevention and control through increased defocus and achieving greater comfort and adaptability.

[0046] As one of the defocus arrangements for the peripheral myopia defocus zone 12 and the defocus microlens ring 2 in this embodiment, the defocus of several defocus microlens rings 2 is 3.5D; along the radial direction outward from the central optical zone 11, the defocus of the peripheral myopia defocus zone 12 is linearly increased between 1D and 1.5D to form a primary myopia defocus zone; and several levels of annularly arranged defocus microlens rings 2 form a secondary myopia defocus zone. This arrangement helps create a gentle visual transition zone and also helps minimize visual discomfort while maintaining stable visual quality. This progressive change can also better stimulate eye accommodation and help prevent the development of myopia.

[0047] In this embodiment, the widths 13 of the spacers are linearly increased at a second difference along the radial direction outward from the central optical zone 11; alternatively, the width of any spacer 13 is a constant k. Maintaining a constant width of the spacers 13 simplifies lens design and manufacturing, and also simplifies the design of the arrangement of the defocused microlens ring 2, eliminating the need for customization for each individual zone.

[0048] In this embodiment, the lens 1 has an opposing front surface 14 and back surface 15;

[0049] Distributed on different surfaces, the primary myopia defocus zone is set on the front surface 14, and the secondary myopia defocus zone is set on the back surface 15; this design allows the two areas to be independent of each other in manufacturing process and performance, which can be more flexible in the production process to optimize the performance of the lens.

[0050] Alternatively, the primary myopia defocusing zone and the secondary myopia defocusing zone are simultaneously provided on the front surface 14. This makes the manufacturing process of the lens simpler and more economical, because only one surface needs to be processed, and may have an advantage on the overall performance of the lens.

[0051] In this embodiment, an enhanced defocus microlens ring 3 is further provided on the peripheral myopia defocus area. The enhanced defocus microlens ring 3 includes a plurality of enhanced defocus microlenses 31 arranged in a ring array. The defocus amounts of the plurality of enhanced defocus microlenses 31 are equal and greater than the defocus amount of the microlens 21.

[0052] Preferably, the defocus amount of the enhanced defocus microlens 31 is 5.0D; wherein, the enhanced defocus microlens ring 31 is any two-level defocus microlens ring 2 between the third level and the sixth level from the inside to the outside of the peripheral myopia defocus area 12.

[0053] It should be noted that the enhanced defocus microlens 31 has a defocus of 5.0D, which is greater than other lenses. This will enable the visual system to produce a greater visual response, while ensuring normal long-distance vision in the central optical zone, while also helping to increase defocus stimulation and further control and prevent the progression of myopia. Due to the presence of the enhanced defocus microlens, the lens will have more defocus levels and can cover a wider visual range, which helps improve eye adaptability and alleviate visual discomfort. The enhanced defocus microlens ring 31 is located between any two defocus lenses 2 between the third and sixth levels from the inside to the outside of the peripheral myopia defocus zone 12. This provides a progressive defocusing method, making the defocus changes encountered by the user's line of sight smoother as the line of sight moves, thereby enhancing visual comfort and continuity.

[0054] In this embodiment, the distance between any two adjacent microlenses 21 on the same circumference is equal, that is, the microlenses 21 are evenly arranged on the lens 1, which is beneficial to improving the uniformity of visual light transmission.

[0055] In this embodiment, the number of microlenses 21 in the peripheral myopia defocus zone 12 reaches a maximum when two adjacent microlenses 21 are connected and intersect at a point; the number of microlenses 21 in the peripheral myopia defocus zone 12 ranges from 80% to 100% of the maximum value.

[0056] Specifically, the microlenses 21 include a plurality of microlenses 21 distributed along its circumference, with the spacing between any two adjacent microlenses 21 being equal. The annular distribution of microlenses 21 allows for more precise control of light diffusion. Due to the relatively small size of the microlenses 21, they can precisely control the incident light, redirecting it and creating defocus, thereby forming a beam of the desired shape and size.

[0057] Example 2:

[0058] The present invention also provides a myopia control and treatment device, including the myopia control optical lens 1 of Example 1. This myopia control and treatment device can use different types of myopia control optical lenses 1 to meet the needs or preferences of different users. These myopia control optical lenses 1, through their unique design, the installation position of the defocus microlens ring 2 and microlenses 21, and the arrangement of the defocus amount, can provide detailed vision correction and a better visual experience.

[0059] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A myopia prevention and control optical lens, comprising a central optical zone and a peripheral myopia defocus zone, wherein the refractive power of the peripheral myopia defocus zone is greater than the refractive power of the central optical zone, characterized in that: The peripheral myopia defocus zone is provided with a plurality of defocus microlens rings arranged in an annular pattern surrounding the central optical zone, with a spacing zone formed between two adjacent defocus microlens rings; the defocus microlens rings include a plurality of microlenses arranged in an annular array; Along the radial direction outward from the central optical zone, the diameters D of the plurality of microlenses are linearly increased with a first difference, and the first difference is greater than 0; wherein the defocus amounts of the microlenses of the plurality of levels of the defocus microlens rings are equal; The peripheral myopia defocus area is further provided with an enhanced defocus microlens ring, the enhanced defocus microlens ring comprising a plurality of enhanced defocus microlenses arranged in a ring array, the defocus amounts of the plurality of enhanced defocus microlenses being equal and greater than the defocus amount of the microlens; The enhanced defocus microlens ring is any two-level defocus microlens ring between the third and sixth levels from the inside to the outside of the peripheral myopia defocus area.

2. The myopia prevention and control optical lens according to claim 1, characterized in that: Along the radial direction outward from the central optical zone, the defocus amount of the peripheral myopia defocus zone is linearly increased between 1D and 1.5D to form a primary myopia defocus zone; the defocus microlens rings arranged in several levels of annular shapes form a secondary myopia defocus zone.

3. The myopia prevention and control optical lens according to claim 2, characterized in that: Along the radial direction outward from the central optical zone, the width of any of the spacer zones is a constant k.

4. The myopia prevention and control optical lens according to claim 2, characterized in that: Along the radial direction outward from the central optical zone, the width of the spacer zone is linearly increased at a second difference.

5. The myopia prevention and control optical lens according to claim 3 or 4, characterized in that: The lens has opposing front and back surfaces; The primary myopia defocus area and the secondary myopia defocus area are simultaneously provided on the front surface; Alternatively, the primary myopia defocus area is provided on the rear surface, and the secondary myopia defocus area is provided on the front surface.

6. The myopia prevention and control optical lens according to claim 1, characterized in that: The distance between any two adjacent microlenses on any defocused microlens ring is equal.

7. The myopia prevention and control optical lens according to claim 6, characterized in that: The number of the microlenses in the peripheral myopia defocus zone reaches a maximum when two adjacent microlenses are connected and intersect at a point; The number of the microlenses in the peripheral myopia defocus zone ranges from 80% to 100% of the maximum value.

8. A myopia suppression treatment device, characterized in that: Including the myopia prevention and control optical lens according to any one of claims 1 to 7.

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