Prevention and control lens for delaying myopia degree development and ocular axis growth

Abstract

The utility model relates to a prevention and control lens for delaying myopia degree progress and eye axis growth. The prevention and control lens is provided with a central bright vision area and an out-of-focus signal area on the outer side. An outer side mirror surface of the defocus signal area is divided into an upper side mirror surface area and a lower side mirror surface area which are respectively provided with first micro-lenses which are arranged in a circular mode and second micro-lenses which are arranged in a honeycomb polygon mode, vision in different spatial frequency fields is optimized through the arrangement mode and parameter design, meanwhile, it is guaranteed that the number of the micro-lenses is equal when the micro-lenses rotate downwards in the pupil area, and the visual acuity of the pupil area is improved. And the eye axis is effectively controlled to stretch. The inner mirror surface is provided with a point diffusion structure, so that the problem of reducing the activity of bipolar cells is solved. According to the lens, the wearing stability, the visual effect and the myopia prevention and control effect are improved, and the lens has very high practicability.

Description

Technical Field

[0001] This utility model relates to the field of lens technology, specifically to a control lens that slows down the progression of myopia and the elongation of the axial length of the eye. Background Technology

[0002] In the field of modern vision correction and visual aid technology, lenses are key components whose performance directly affects the user's visual experience and eye health. Currently, there are many problems with lens technology widely used in the market that urgently need to be solved.

[0003] In existing lens designs, the arrangement of microlenses plays a decisive role in visual effect. Many existing lenses employ a circular arrangement of microlenses. This circular arrangement leads to unstable visual quality; within the user's field of vision, different areas exhibit significantly different visual effects, with some areas displaying good vision while others are relatively poor. This severely impacts the consistency and comfort of the user's visual experience.

[0004] The drawbacks of circularly arranged microlenses are particularly pronounced in the high spatial frequency domain. In this domain, their ability to resolve details of objects in close-up scenes is poor, making it difficult for users to achieve satisfactory visual results in scenarios requiring clear identification of details, such as reading small print or observing fine objects. In an attempt to compensate for this visual deficiency, users often unconsciously squint; however, prolonged squinting can easily exacerbate astigmatism, further damaging visual health.

[0005] As people's requirements for visual quality continue to increase, whether it is for daily work and study or for special professions with strict visual requirements, such as precision instrument manufacturing and art design, the existing circular arrangement of microlenses can no longer meet the needs. Utility Model Content

[0006] To address the aforementioned technical problems, this application solves the issue that the drawbacks of circularly arranged microlenses are more pronounced in the high spatial frequency domain.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows: a control lens for delaying the progression of myopia and the elongation of the axial length, comprising a central visual region and a defocus signal region located outside the central visual region; the outer surface of the lens located within the defocus signal region is divided into an upper mirror surface region and a lower mirror surface region;

[0008] The upper mirror area is covered with a number of first microlenses arranged in a circular granular shape. Any two adjacent first microlenses along the circumferential direction are in close contact with each other, and any two adjacent first microlenses along the radial direction are arranged at equal intervals.

[0009] The lower mirror area is covered with a number of second microlenses arranged in a circular granular pattern, with any two adjacent second microlenses arranged at equal intervals.

[0010] To better realize this utility model, the diameter of the first microlens is 1.1mm to 1.4mm, the center distance between any two first microlenses in the radial direction is 2.0mm to 2.5mm, and the defocusing amount of the first microlens gradually increases from the inside to the outside in the radial direction.

[0011] To better realize this utility model, the diameter of the second microlens is 1.0mm to 1.5mm, and the distance between any two second microlenses is 0.5mm.

[0012] To better realize this utility model, the second microlens is further arranged in a honeycomb pattern.

[0013] To better realize this utility model, the first microlens is arranged in a low-density arrangement, and the second microlens is arranged in a high-density arrangement;

[0014] The area of ​​the upper mirror region is greater than or equal to the area of ​​the lower mirror region; the fill rate of the plurality of first microlenses in the upper mirror region is 30%, and the fill rate of the plurality of second microlenses in the lower mirror region is 50%.

[0015] To better realize this utility model, the lens is further provided with a dot diffusion structure on the inner surface of the lens located in the defocus signal area.

[0016] To better realize this utility model, the geometric center region of the point diffusion structure further includes at least a pointless diffusion region with a diameter of 5mm to 7mm.

[0017] To better realize this utility model, the surface of the lens located in the central visible area is further divided into a visible area and a transition area from the inside to the outside;

[0018] The diameter of the visible area is 5mm to 7mm, the inner diameter of the transition area is 5mm to 7mm, and the outer diameter of the transition area is 7mm to 11mm. Specifically, if the diameter of the visible area is 5mm, the inner diameter of the transition area is 5mm, and the outer diameter of the transition area is greater than 5mm and less than or equal to 11mm; if the diameter of the visible area is 7mm, the inner diameter of the transition area is 7mm, and the outer diameter of the transition area is greater than 7mm and less than or equal to 11mm. A one-to-one correspondence is ensured between the diameter of the visible area and the inner diameter of the transition area.

[0019] To better realize this utility model, further, the transition zone is covered with a plurality of third microlenses arranged in a divergent manner from the center to the surrounding areas;

[0020] The plurality of the third microlenses are divided into four groups, and the four groups of the third microlenses are arranged in a circumferential array with equal spacing in the transition region;

[0021] In each group of third microlenses, the distance between two adjacent third microlenses gradually increases from the center outwards.

[0022] To better realize this utility model, the defocusing amount of the third microlens is further +3.00D, and the defocusing amount of the third microlens is less than the defocusing amounts of the first microlens and the second microlens in the defocusing signal area.

[0023] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0024] 1. The present invention provides a dot diffusion structure on the inner surface of the lens within the defocus signal area, which solves the problem of reduced bipolar cell activity. The geometric center of the dot diffusion area has at least a dot-free diffusion area with a diameter of 5mm to 7mm, which facilitates photometric measurement during processing. On the other hand, it improves visual clarity and reduces eye fatigue.

[0025] 2. In this invention, the first microlens in the upper mirror area gradually increases the defocus amount in the radial direction from the inside to the outside. When viewed from the side, the defocus amount changes dynamically at each position, which can effectively control the axial extension and retraction of the eye axis. The second microlens in the lower mirror area are arranged in a honeycomb pattern and form an image in the fovea of ​​the retina. The defocus effect of myopia prevention and control is significant.

[0026] 3. In this utility model, the arrangement of the first microlens ensures sufficient distance correction area, with a correction area of ​​up to 70%, resulting in strong eye adaptability, a wider field of vision in the low spatial frequency range, and excellent dynamic vision; the arrangement of the second microlens further enhances the ability to distinguish target details in the high spatial frequency range, and when the lower mirror area rotates downward within the pupil area, the number of second microlenses at different positions is equal, resulting in stronger static vision and the ability to capture target details.

[0027] 4. This utility model, through the design of a third microlens, compared with the multi-point defocusing currently on the market, allows the central area to obtain clear vision while enabling the distance area to form an off-center central defocus. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 In this utility model Figure 1 The front view;

[0031] Figure 3 In this utility model Figure 1 Rear view;

[0032] Figure 4 In this utility model Figure 1 Side view.

[0033] In the figure: 101-lens; 102-outer mirror surface; 103-first microlens; 104-second microlens; 105-visible zone; 106-transition zone; 107-third microlens; 108-inner mirror surface; 109-dot diffusion structure. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0039] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] Example 1:

[0041] like Figures 1 to 4 As shown, a control lens for slowing the progression of myopia and the elongation of the axial length of the eye includes a central visual region and a defocus signal region located outside the central visual region; the outer mirror surface 102 of the lens 101 located within the defocus signal region is divided into an upper mirror surface region and a lower mirror surface region.

[0042] The upper mirror area is covered with a number of first microlenses 103 arranged in a circular particle shape. Any two adjacent first microlenses 103 along the circumferential direction are in close contact with each other, and any two adjacent first microlenses 103 along the radial direction are arranged at equal intervals.

[0043] The lower mirror area is covered with a number of second microlenses 104 arranged in a circular granular pattern, and any two adjacent second microlenses 104 are arranged at equal intervals.

[0044] like Figures 1 to 4As shown, in this embodiment, the diameter of the first microlens 103 is 1.1mm to 1.4mm, and the center-to-center distance between any two first microlenses 103 in the radial direction is 2.0mm to 2.5mm. The defocus amount of the first microlens 103 gradually increases from the inside to the outside in the radial direction. The advantage is that when viewing from the side (without looking at distant or near targets), the defocus amount at each position is also dynamically changing, thereby enabling control of the axial extension and retraction of the eye axis.

[0045] Advantages of the first microlens arrangement: 1. Sufficient correction area in the distance, with a correction area of ​​up to 70%, resulting in better eye adaptability; 2. Wider field of vision in the low spatial frequency range, and better dynamic vision (ability to distinguish target outlines).

[0046] like Figures 1 to 4 As shown, in this embodiment, the diameter of the second microlens 104 is 1.0mm to 1.5mm, and the distance between any two second microlenses 104 is 0.5mm.

[0047] like Figures 1 to 4 As shown, in this embodiment, the second microlens 104 is arranged in a honeycomb pattern.

[0048] like Figures 1 to 4 As shown, in this embodiment, the first microlens 103 are arranged in a low-density configuration, and the second microlens 104 are arranged in a high-density configuration.

[0049] The area of ​​the upper mirror region is greater than or equal to the area of ​​the lower mirror region.

[0050] like Figures 1 to 4 As shown, in this embodiment, the fill rate of the plurality of first microlenses 103 in the upper mirror area is 30%, and the fill rate of the plurality of second microlenses 104 in the lower mirror area is 50%.

[0051] The advantage of the second microlens arrangement is that it provides foveal imaging of the retina, and the significant defocusing effect in myopia control is achieved by acting on central defocus imaging of the retina. Therefore, it is superior in the high spatial frequency domain (the ability to resolve target details).

[0052] Advantages of using the glasses: If the second microlens and its arrangement in the lower mirror area are replaced by the first microlens and its arrangement, the number of first microlenses in different positions will be unequal when rotating downwards within the pupil area. However, if the lower mirror area uses the second microlens and its arrangement, the number of second microlenses in different positions is equal when rotating downwards within the pupil area (generally maintaining a number of 7 second microlenses), which makes static vision and the ability to capture target details stronger. When wearing glasses, as the user alternates between viewing distant or near targets, the user's choroid changes, and the axial length of the eye stretches and retracts.

[0053] like Figures 1 to 4 As shown, in this embodiment, a dot diffusion structure 109 is provided on the inner mirror surface 108 of the lens 101 located in the defocus signal area (the dot diffusion structure 109 can be a light diffuser, and the dot diffusion structure 109 adopts existing mature dot diffusion technology).

[0054] Advantages of the dot-diffusion structure 109: It solves the problem of reducing the activity of bipolar cells, slows down the development of the axial length, reduces contrast, and slows down the development of the axial length and the deepening of myopia.

[0055] like Figures 1 to 4 As shown, in this embodiment, the geometric center region of the dot diffusion structure 109 has at least a dotless diffusion region with a diameter of 5mm to 7mm.

[0056] On the one hand, the geometric center of the dot diffusion structure 109 on the inner side of the lens defocus signal area has at least a dot-free diffusion area with a diameter of 5mm to 7mm, which facilitates photometric measurement during processing; on the other hand, it improves visual clarity and reduces eye fatigue.

[0057] like Figures 1 to 4 As shown, in this embodiment, the surface of the lens 101 located within the central visual area is divided into a visual area 105 and a transition area 106 from the inside out.

[0058] The diameter of the visible area 105 is 5mm to 7mm, the inner diameter of the transition area 106 is 5mm to 7mm, and the outer diameter of the transition area 106 is 7mm to 11mm. Specifically, if the diameter of the visible area 105 is 5mm, then the inner diameter of the transition area 106 is 5mm, and the outer diameter of the transition area 106 is greater than 5mm and less than or equal to 11mm; if the diameter of the visible area 105 is 7mm, then the inner diameter of the transition area 106 is 7mm, and the outer diameter of the transition area 106 is greater than 7mm and less than or equal to 11mm. This ensures a one-to-one correspondence between the diameter of the visible area 105 and the inner diameter of the transition area 106.

[0059] like Figures 1 to 4 As shown, in this embodiment, the transition region 106 is covered with a plurality of third microlenses 107 arranged in a divergent manner from the center to the surrounding areas;

[0060] The plurality of the third microlenses 107 are divided into four groups, and the four groups of the third microlenses 107 are arranged in a circumferential array with equal spacing in the transition region 106.

[0061] like Figures 1 to 4 As shown, in this embodiment, the distance between two adjacent third microlenses 107 in each group of third microlenses 107 gradually increases from the center outwards.

[0062] like Figures 1 to 4 As shown, in this embodiment, the defocusing amount of the third microlens 107 is +3.00D, and the defocusing amount of the third microlens 107 is less than the defocusing amounts of the first microlens 103 and the second microlens 104 in the defocus signal region.

[0063] By designing a third microlens, compared to the multi-point defocusing currently available on the market, it not only allows for clear vision in the central area but also enables off-center defocusing in the distance area.

[0064] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lens for controlling the progression of myopia and the elongation of the axial length of the eye, characterized in that: It includes a central bright vision area and a defocus signal area located outside the central bright vision area; the outer mirror surface (102) of the lens (101) located within the defocus signal area is divided into an upper mirror surface area and a lower mirror surface area; The upper mirror area is covered with a number of first microlenses (103) arranged in a circular particle shape. Any two first microlenses (103) that are adjacent in the circumferential direction are in close contact with each other, and any two first microlenses (103) that are adjacent in the radial direction are arranged at equal intervals. The lower mirror area is covered with a number of second microlenses (104) arranged in a circular granular pattern, and any two adjacent second microlenses (104) are arranged at equal intervals.

2. The control lens for delaying the progression of myopia and the elongation of the axial length according to claim 1, characterized in that: The diameter of the first microlens (103) is 1.1 mm to 1.4 mm, and the distance between any two first microlenses (103) in the radial direction is 2.0 mm to 2.5 mm. The defocusing amount of the first microlens (103) gradually increases from the inside to the outside in the radial direction.

3. The control lens for delaying the progression of myopia and the elongation of the axial length according to claim 1, characterized in that: The diameter of the second microlens (104) is 1.0 mm to 1.5 mm, and the distance between any two second microlenses (104) is 0.5 mm.

4. A lens for delaying the progression of myopia and axial elongation according to claim 1 or 3, characterized in that: The second microlens (104) is arranged in a honeycomb pattern.

5. The control lens for delaying the progression of myopia and axial elongation according to claim 1 is characterized in that: The first microlens (103) is arranged in a low-density configuration, and the second microlens (104) is arranged in a high-density configuration; The area of ​​the upper mirror region is greater than or equal to the area of ​​the lower mirror region, the filling rate of the plurality of first microlenses (103) in the upper mirror region is 30%, and the filling rate of the plurality of second microlenses (104) in the lower mirror region is 50%.

6. The control lens for delaying the progression of myopia and axial elongation according to claim 1, characterized in that: The lens (101) is covered with a dot diffusion structure (109) on the inner mirror surface (108) of the defocus signal area.

7. The control lens for delaying the progression of myopia and axial elongation according to claim 6, characterized in that: The point diffusion structure (109) has at least a pointless diffusion region with a diameter of 5 mm to 7 mm in the regional geometric center area.

8. The control lens (101) for delaying the progression of myopia and axial elongation according to claim 1, characterized in that: The lens (101) is located on the surface of the central visual area and is divided into a visual area (105) and a transition area (106) from the inside to the outside.

9. The control lens for delaying the progression of myopia and axial elongation according to claim 8, characterized in that: The diameter of the visible area (105) is 5mm to 7mm, the inner diameter of the transition area (106) is 5mm to 7mm, and the outer diameter of the transition area (106) is 7mm to 11mm.

10. A control lens for delaying the progression of myopia and axial elongation according to claim 9, characterized in that: The transition zone (106) is covered with multiple third microlenses (107) arranged in a divergent pattern from the center to the surrounding areas; The plurality of the third microlenses (107) are divided into four groups, and the four groups of the third microlenses (107) are arranged in a circumferential array at equal intervals in the transition region (106); In each group of third microlenses (107), the distance between two adjacent third microlenses (107) gradually increases from the center outwards; The defocusing amount of the third microlens (107) is +3.00D, and the defocusing amount of the third microlens (107) is less than the defocusing amount of the first microlens (103) and the second microlens (104) in the defocusing signal area.

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