Functional glasses with myopia prevention and astigmatism training functions

Abstract

The invention discloses a pair of functional glasses with myopia prevention and astigmatism training functions, which comprises a main frame, telescopic locking adjusting assemblies are sleeved in two sides of the main frame, and the tail ends of the adjusting assemblies are hinged to glasses leg assemblies (comprising side frames and telescopic legs); a nose support and an n-shaped lens guide frame are arranged on the lower surface of the main frame, and two sets of lockable lens assemblies are connected to the lower surface of the lens guide frame in a sliding mode. A lens main body of the lens assembly is provided with a central optical area (correcting retinal center defocus), a vertical upper concave lens area (a fan-shaped annular concave lens, and the area ratio of the concave lens to a blank area is 2: 3-3: 2), a nasal side / bitamporal diffraction area (a high-filling-density convex lens) and a vertical lower edge comfortable area (a low-filling-density convex lens). The myopia prevention and astigmatism training device can adapt to different facial forms, myopia prevention and astigmatism training are flexibly achieved, abnormal extension of the ocular axis is restrained through a dynamic defocus signal, the prevention and control effect can still be maintained when the glasses slide down or the degree rises, and the use stability and comfort are improved.

Description

Technical Field

[0001] This invention relates to the field of optical eyewear technology, specifically to a pair of eyeglasses with myopia prevention and astigmatism training functions. Background Technology

[0002] With changes in modern lifestyles and visual environments, the incidence of myopia is showing a year-on-year upward trend and is affecting increasingly younger people, becoming a global public health concern. Myopia not only brings many inconveniences to patients' daily lives, such as blurred vision affecting learning, work, and various activities, but high myopia can also lead to a series of serious eye complications, such as retinal detachment and macular degeneration, causing irreversible damage to visual health.

[0003] Abnormal elongation of the axial length of the eye is one of the core pathological mechanisms leading to a continuous increase in myopia. During normal visual development, light from the outside world should be accurately focused on the retina after passing through the eye's refractive system, forming a clear image. However, when the axial length of the eye grows excessively backward, the image point falls behind the retina. To adapt to this blurred image, the eye further adjusts its refractive state, resulting in a continuous increase in myopia. Summary of the Invention

[0004] To address the aforementioned technical problems, this application solves the problem of how to fundamentally train abnormal elongation of the eye axis.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a pair of functional glasses with myopia prevention and astigmatism training includes a main frame, with retractable and lockable adjustment components fitted inside the left and right sides of the main frame, and a temple assembly consisting of a side frame and telescopic temples hinged to the end of the adjustment components. The telescopic temples inside the side frame are retractable and fixed by locking components. The lower surface of the main frame is provided with a nose bridge and a "∩"-shaped lens guide frame. Two sets of lockable lens assemblies are slidably connected to the lower surface of the lens guide frame. The lens assemblies can be driven by a drive motor to slide individually or overlappingly along the guide frame track.

[0006] The lens assembly includes a central optical zone for correcting central retinal defocus, a concave lens zone located vertically above the central optical zone and containing a fan-shaped ring concave lens (the area ratio of the concave lens to the blank area is 2:3 to 3:2), a nasal diffraction zone and a temporal diffraction zone located on the left and right sides of the central optical zone and containing high-fill-density convex lenses, and a comfort zone located at the lower vertical edge of the lens body and containing low-fill-density convex lenses.

[0007] The adjustable components and telescopic legs adapt to different face shapes, ensuring stable wear; the lens components flexibly switch between training and idle states; the multi-area design of the lens generates defocus signals, which can not only inhibit abnormal elongation of the eye axis to achieve myopia prevention and astigmatism training, but also form secondary prevention when the glasses slip or the prescription increases, avoiding prevention failure and extending the lens's service life.

[0008] The technical solution provided by this invention has the following advantages compared with the prior art:

[0009] 1. This invention adapts to different face shapes and improves wearing stability. The main frame has retractable and locking adjustment components (including the adjustment component body, a first spring, and a first locking element) on both sides, and the temple assembly has retractable telescopic legs (including a second spring and a second locking element). The adjustment components can extend and retract along the main frame slide and are locked by the first locking element to adjust the width of the main frame; the telescopic legs can extend and retract along the side frame auxiliary slide and are locked by the second locking element to adjust the temple length. It adapts to different users' face shapes (adjusting frame width) and ear positions (adjusting temple length), ensuring a close fit between the glasses and the face; preventing the glasses from falling off after wearing, improving long-term wearing stability and comfort, and adapting to users of different ages and face shapes.

[0010] 2. This invention allows for flexible switching between training and viewing modes, optimizing the eyeglass layout with a "∩"-shaped lens guide frame (including an outer guide rail, an inner guide rail, and a rack). The lens assembly is equipped with a drive motor, a rotating shaft, and gears (the gears mesh with the rack). The drive motor, through gear-rack transmission, drives two sets of lens assemblies to slide individually or overlappingly in front of the user's single eye (to achieve training). When idle, they slide to the end of the track. This allows for flexible switching between "training" and "idle" states, ensuring that the lenses do not obstruct normal vision when idle. It optimizes the overall layout of the eyeglasses, preventing idle lenses from affecting appearance and vision, and improving flexibility and aesthetics.

[0011] 3. This invention provides dynamic defocus control to inhibit myopia progression. The central optical zone of the lens (correcting the corresponding degree of myopia) and the vertically upward concave lens zone (containing several fan-shaped concave lenses with a 2:3-3:2 area ratio between the concave lenses and the blank area) allow for a gradual increase in lens power. The central optical zone ensures clear imaging of the central field of vision, while the concave lens zone generates a preretinal defocus signal. Gradually increasing the power creates a dynamic defocus signal, adapting to changes in the eye's physiological state. This preretinal defocus signal guides the eye's adaptation, inhibiting abnormal elongation of the axial length (the core pathological mechanism of myopia progression). This achieves myopia prevention (for those without myopia) or myopia control (for those already with myopia), reducing the risk of further myopia progression and lowering the probability of complications associated with high myopia.

[0012] 4. This invention provides secondary protection against myopia, extending the lens's lifespan. The main body of the lens is a convex lens structure, combined with a concave lens area and a slit area (a low-fill-density concave lens or a combination of concave lens: cylindrical lens: blank area = 1:1:1). When the glasses slip or the user's prescription increases, the focal point, which was originally behind the retina, shifts to the retina, and the focal point in the blank area shifts to in front of the retina, forming a "secondary defocus." This compensates for the problem of prevention and control failure caused by positional shifts or changes in prescription in traditional lenses, eliminating the need for frequent lens replacements. It extends the lens's lifespan, reduces usage costs, improves the continuity and reliability of myopia prevention and control, and avoids myopia progression due to untimely lens replacements.

[0013] 5. This invention covers peripheral vision, balancing myopia control and comfort. The lens features a nasal / temporal diffraction zone (a high-fill-density convex lens with fan-shaped / rectangular diffusion layers) and a vertically downward comfort zone (a convex lens with 35%-40% fill density). The nasal / temporal diffraction zone generates sufficient hyperopic defocus, covering key areas around the eye. The comfort zone ensures clear vision in high-frequency scenarios such as looking down (reading, looking at a mobile phone). It enhances the control effect on the axial length of the eye (peripheral defocus supplementation) while avoiding peripheral vision blurring that affects the user experience. While improving myopia control efficiency, it ensures comfort for daily vision, adapts to diverse eye use scenarios, and reduces visual fatigue from long-term wear. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Front view; Figure 3 for Figure 1 A bottom view; Figure 4 This is a schematic diagram of the main frame structure in this invention; Figure 5 This is a schematic diagram of the structure of the first baffle in this invention; Figure 6 This is a schematic diagram of the structure of the adjustment component in this invention; Figure 7 This is a schematic diagram of the structure of the first positioning groove in this invention; Figure 8 This is a schematic diagram of the main frame, the first guide groove, and the first spring in this invention; Figure 9 This is a schematic diagram of the structure of the first spring in this invention; Figure 10 This is a schematic diagram of the side frame structure in this invention; Figure 11 This is a schematic diagram of the adjustment component, the first guide groove, the side frame, and the second column in this invention; Figure 12 This is a schematic diagram of the telescopic leg in this invention; Figure 13 This is a schematic diagram of the telescopic leg body, slender rod, second guide groove, second spring body, and second connecting ring in the present invention; Figure 14 This is a schematic diagram of the lens guide frame in this invention; Figure 15 This is a schematic diagram of the lens assembly in this invention; Figure 16 This is a schematic diagram of the mirror drive motor, rotating shaft, and gear in this invention; Figure 17 This is a schematic diagram illustrating the cooperation between the lens guide frame and the lens assembly in this invention; Figure 18 for Figure 20 Enlarged view of section R in the middle. Figure 19 This is a simplified structural diagram of the fan-shaped diffusion extension of the nasal and temporal diffraction regions of the lens in this invention. Figure 20 This is a simplified structural diagram of the rectangular diffusion extension of the nasal and temporal diffraction regions of the lens in this invention.

[0016] In the diagram: 100-Main frame; 200-First baffle; 300-Adjusting assembly; 400-First spring; 500-Side frame; 600-Telescopic leg; 700-Nose bridge; 800-Lens guide frame; 900-Lens assembly; 101-Main frame body; 102-First positioning hole; 103-First column; 104-First locking element; 201-First baffle body; 202-Folded edge; 203-Positioning boss; 204-Second positioning hole; 301-Adjusting assembly body; 302-First guide groove; 303-Tuning transition section; 304-Rotary joint; 305-First positioning groove; 401-First spring body; 402-First connecting ring; 501-Side frame body; 502-Second slide groove; 503-Second baffle body; 504-Second locking element; 505-Second column; 506- Rotating connecting groove; 507-Third column; 601-Telescopic leg body; 602-Second positioning groove; 603-Slender rod; 604-Second guide groove; 605-Second spring body; 606-Second connecting ring; 801-Lens guide frame body; 802-Outer guide rail; 803-Inner guide rail; 804-Rack; 901-Lens frame; 902-Frame guide block; 903-Lens mounting frame; 904-Lens; 905-Drive motor; 906-Rotating shaft; 907-Gear; 9040-Lens body; 9041-Convex lens; 9042-Central optical zone; 9043-Slit zone; 9044-Concave lens zone; 9045-Ring; 9046-Concave lens; 9047-Blank zone; 9048-Nose side diffraction zone; 9049-Temporal side diffraction zone; 9050-Comfort zone. Detailed Implementation

[0017] 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 some embodiments of this application, but not all embodiments.

[0018] Example 1

[0019] like Figures 1 to 18As shown, a pair of functional glasses with myopia prevention and astigmatism training includes a main frame 100. An adjustable assembly 300, which is retractable and lockable, is respectively fitted inside the left and right sides of the main frame 100. A temple assembly is hinged to the end of each adjustable assembly 300. A nose bridge 700 and a lens guide 800 are respectively provided on the lower surface of the main frame 100. The nose bridge 700 is located behind the lens guide 800. Two sets of lens assemblies 900 are respectively provided on the lower surface of the lens guide 800, each lockable and slidable along the length of the lens guide 800 (sliding can be done manually, electrically, pneumatically, or hydraulically, or other driving methods can also be used).

[0020] like Figures 1 to 18 As shown, in this embodiment, the main frame 100 includes a main frame body 101. The rear surface of the main frame body 101 is provided with a first sliding groove that runs through the left and right sides. A first column 103 is provided in the middle of the first sliding groove. The upper surface of the main frame body 101 is provided with at least two first positioning holes 102 that communicate with the first sliding groove.

[0021] like Figures 1 to 18 As shown, in this embodiment, the upper inner wall of the first slide groove is provided with (for example, bonded) a first baffle 200. The first baffle 200 includes a first baffle body 201. The side of the first baffle body 201 near the user is provided with a folded edge 202. The upper surface of the first baffle body 201 is provided with a positioning boss 203 that matches the first positioning hole 102. The upper surface of the positioning boss 203 located at both ends of the first baffle body 201 is provided with a through second positioning hole 204. The upper surface of the first baffle body 201 is aligned and fitted with the upper inner wall of the first slide groove, so that a main slide is formed between the first slide groove and the first baffle 200. The positioning boss 203 is placed in the first positioning hole 102. The main frame 100 also includes a first locking member 104. The first locking member 104 is threaded through the second positioning hole 204 and placed in the main slide.

[0022] like Figures 1 to 18As shown, in this embodiment, the adjustment component 300 includes an adjustment component body 301. A first guide groove 302 is formed on the lower surface of the adjustment component body 301. The first guide groove 302 extends through the end face of the adjustment component body 301 near the first column 103. A rotary joint 304 is provided at the end of the adjustment component body 301 away from the first column 103, twisted at 90° by a turning transition section 303. A first positioning groove 305 is formed on the upper surface of the adjustment component body 301. The adjustment component body 301 is fitted inside the main slide rail. Rotating the first... The locking member 104 can abut against and lock onto the inner bottom surface of the first positioning groove 305; the glasses also include a first spring 400, the first spring 400 includes a first spring body 401, the end of the first spring body 401 away from the first column 103 is fixedly connected to the inner wall surface of the first guide groove 302 away from the first column 103, and a first connecting ring 402 is provided at the end of the first spring body 401 near the first column 103, the first connecting ring 402 is sleeved on the outside of the first column 103.

[0023] like Figures 1 to 18As shown, in this embodiment, the temple assembly includes a side frame 500 and a telescopic temple 600. The side frame 500 includes a side frame body 501. A second sliding groove 502, extending in both front and rear directions, is formed on the inner surface of the side frame body 501. A second column 505 is provided at the front end of the second sliding groove 502. Two first auxiliary positioning holes, communicating with the second sliding groove 502, are formed on the upper surface of the side frame body 501. A second baffle body 503 is provided on the upper inner wall of the second sliding groove 502. The slide 502 has an auxiliary folded edge on the side closest to the user. The upper surface of the second baffle body 503 has an auxiliary positioning boss that matches the first auxiliary positioning hole. The upper surfaces of the auxiliary positioning bosses located at both ends of the second baffle body 503 have through-hole second auxiliary positioning holes. The upper surface of the second baffle body 503 is aligned and fitted with the upper inner wall of the second slide 502, forming an auxiliary slide between the second slide 502 and the second baffle body 503. The auxiliary positioning boss is placed on the... Within the first auxiliary positioning hole, the side frame 500 further includes a second locking member 504, which is threaded through the second auxiliary positioning hole and placed within the auxiliary slide rail; the telescopic leg 600 includes a telescopic leg body 601, with a second positioning groove 602 formed at the front end of the upper surface of the telescopic leg body 601, and a second guide groove 604 formed at the front end of the lower surface of the telescopic leg body 601. The second guide groove 604 extends through the front end face of the telescopic leg body 601 on the side near the second column 505. The leg body 601 is fitted inside the auxiliary slide. The second locking member 504 is rotated and can abut against and lock onto the inner bottom surface of the second positioning groove 602. A second spring body 605 is arranged in the second guide groove 604. One end of the second spring body 605 is fixedly connected to the inner wall of the second guide groove 604 away from the second column 505. The other end of the second spring body 605 is provided with a second connecting ring 606, which is fitted outside the second column 505.

[0024] like Figures 1 to 18 As shown in this embodiment, a slender rod 603 is provided on the front end face of the telescopic leg body 601.

[0025] like Figures 1 to 18As shown, in this embodiment, the lens guide frame 800 includes a lens guide frame body 801. The lens guide frame body 801 is shaped like a "∩" (the lengths of the left and right legs of the "∩" shape are determined according to the situation to avoid direct contact with the user's face). The lower surface of the lens guide frame body 801 is provided with an outer guide rail 802 and an inner guide rail 803 arranged in parallel with each other. The bottom openings of the outer guide rail 802 and the bottom openings of the inner guide rail 803 are provided with limiting flanges. The outer side of the bottom surface of the outer guide rail 802 and the inner side of the bottom surface of the inner guide rail 803 are provided with racks 804.

[0026] like Figures 1 to 18 As shown, in this embodiment, the lens assembly 900 includes a lens holder 901. A holder guide block 902 is provided at the upper end of the lens holder 901, and a lens mounting frame 903 is provided at the lower end of the lens holder 901. A lens 904 is disposed within the lens mounting frame 903 (e.g., via suction connection). The outer guide rail 802 and the inner guide rail 803 are slidably connected to one of the holder guide blocks 902, respectively. A drive motor 905 (a readily available and mature micro-motor with a micro battery) is provided on the upper sidewall of the lens holder 901. A rotating shaft 906 is provided at the output end of the drive motor 905, and a gear 907 is provided at the end of the rotating shaft 906, which meshes with the rack 804. In addition, the outer guide rail 802 and the frame guide block 902, and the inner guide rail 803 and the frame guide block 902 can also be magnetically connected (when sliding, the frame guide block 902 can be moved manually, or it can be driven by electric, pneumatic or hydraulic methods to slide), so as to realize the locking function.

[0027] The present invention adapts to the different face shapes of users by adjusting the component 300, the first spring 400 and the first locking member 104 locking in the first positioning groove 305.

[0028] The present invention, through the cooperative design of the telescopic leg 600 extending and retracting within the side frame 500, the second spring body 605, and the second locking member 504 locking within the second positioning groove 602, ensures that after the glasses are worn by the user, the tail of the telescopic leg 600 aligns with the user's ear position, ensuring that the glasses will not fall off after being worn.

[0029] The present invention, through the cooperative design of the lens guide frame 800 and the lens assembly 900, allows the two sets of lenses 904 to slide individually to the position directly in front of either eye of the user; on the other hand, it also allows the two sets of lenses 904 to overlap and work together (corresponding to manual, pneumatic, electric or hydraulic drive respectively), driving the two sets of lenses 904 to overlap at the position directly in front of either eye.

[0030] Assuming the user has 100 degrees of myopia, the power corresponding to the central area is exactly the range that can correct 100 degrees of myopia. In other words, the central area is equivalent to the effect of a plano lens, which can accurately focus light on the retina and ensure normal and clear visual imaging.

[0031] When a user places the glasses at the correct interpupillary distance, this area on the periphery of the central region begins to play a unique role, generating a defocus signal. Specifically, light refracted through this area does not fall on the retina, but rather in front of it. This imaging characteristic is significant because abnormal posterior elongation of the eye axis is one of the key factors leading to the continuous progression of myopia. By ensuring that the image point falls in front of the retina, a "signal" is sent to the eyeball, preventing further posterior elongation of the eye axis and thus inhibiting the development of myopia at its root.

[0032] In practical use, to achieve better myopia control or prevention, we gradually increase and adjust the lens power to create a dynamic defocus signal that corresponds to the gradual changes in the eye's physiological state. For example, if the initial lens power is 100 degrees (as described above), the power can be changed by replacing or layering lenses. For instance, when replacing with a 300-degree accommodative lens and then layering up to 600 degrees, the central area still corrects the corresponding degree of myopia, ensuring clear central vision.

[0033] Through such a continuous and dynamic training process, the eyeball will gradually adapt to the guidance of this defocus signal, and the growth trend of the axial length can be effectively controlled. This can help prevent the occurrence of myopia or to scientifically and rationally control existing myopia, helping users maintain good vision as much as possible and reduce the risk of further myopia progression.

[0034] The present invention utilizes the “∩” shaped design of the lens guide frame body 801. When the two sets of lenses 904 are not in use, they are located at the ends of the outer guide rail 802 and / or the inner guide rail 803. After the user’s eyes are trained by the two sets of lenses 904, and when the eye training is no longer required, the two sets of lenses 904 are manually or automatically driven to slide to the ends of the outer guide rail 802 and / or the inner guide rail 803 respectively.

[0035] Example 2

[0036] like Figure 19 and Figure 20 As shown, in Embodiment 2 of the present invention, the lens 904 includes a lens body 9040 that is entirely convex. The lens body 9040 has a central optical region 9042 for correcting central retinal defocus and a concave lens region 9044 located vertically above the central optical region 9042. The concave lens region 9044 includes several fan-shaped rings 9045 surrounding the central optical region 9042. The rings 9045 are arranged radially along the lens body 9040 from the central optical region 9042 to the edge of the lens body 9040. Each ring 9045 is composed of several concave lenses 9046. The area within the concave lens region 9044 not covered by the concave lenses 9046 is a blank area 9047. The ratio of the sum of the areas of the concave lenses 9046 to the sum of the areas of the blank area 9047 is set to a range of 2:3 to 3:2. Preferably, the concave lens 9046 in the concave lens region 9044 has a diopter of -300° to 350°. The lens body 9040 of the present invention, with its vertical edge configured with a plurality of fan-shaped arranged concave lenses 9046, improves the contrast of the user's retina. The convex surface of the lens body 9040 itself, combined with the concave lenses 9046 in a plurality of rings 9045 thereon, creates a contrast in retinal contrast, increasing the intensity of the contrast signal and the myopia control effect of the lens.

[0037] Specifically, traditional lenses only have convex lenses. When a user uses a traditional lens, part of the focal point of the convex lens falls in front of the user's retina, and part falls on the retina; this difference constitutes the contrast. This invention, by incorporating several concave lenses 9046 on a convex lens, ensures that part of the focal point of the concave lenses 9046 falls behind the retina, while the focal point of the blank area 9047 falls on the retina, achieving a myopia control effect. When a user wears glasses for an extended period, their glasses will gradually slip down. Because part of the focal point of a traditional lens is in front of the retina, this shifts the focal point from on the retina to in front of the retina, resulting in a loss of myopia control. Furthermore, if the user's prescription increases, the same issue arises; the focal point of a traditional lens in front of the retina will also shift, leading to a loss of myopia control. The convex-concave combination of the convex lens body 9040 and the concave lenses 9046 ensures that in both cases, the focal point behind the retina falls on the retina, while the focal point of the blank area 9047 falls in front of the retina, creating secondary myopia control. Therefore, myopia control can be achieved even without changing the user's glasses.

[0038] Therefore, this invention solves the core defect of traditional single convex lens lenses—traditional lenses have part of the focal point in front of the retina, and when the glasses slip or the user's prescription increases, the focal point will shift to in front of the retina, causing the myopia control to fail; while this invention, through the convex surface of the lens body 9040 and the concave-convex cooperation of the concave lens 9046, can shift the focal point that originally fell behind the retina to the retina and the focal point of the blank area 9047 to in front of the retina in the above two situations, forming a "secondary myopia control" mechanism, which can maintain the control effect without replacing glasses, extend the lens's applicable period, and improve the convenience of use and the continuity of control.

[0039] According to a preferred embodiment, the lens body 9040 is further provided with a nasal diffraction region 9048 and a temporal diffraction region 9049. The nasal diffraction region 9048 and the temporal diffraction region 9049 are formed outside the circular area of ​​the central optical region 9042, and their boundaries are respectively defined by the edges of the lens body 9040, the central optical region 9042, and the concave lens region 9044. The lens of the present invention has nasal diffraction regions 9048 and temporal diffraction regions 9049 with microlenses on both sides, resulting in a large amount of hyperopic defocus on the nasal and temporal sides of the user, thereby improving the effect of controlling the user's eye axis.

[0040] According to a preferred embodiment, the nasal diffraction region 9048 and the temporal diffraction region 9049 are respectively disposed on the left and right sides of the central optical region 9042. Both the nasal diffraction region 9048 and the temporal diffraction region 9049 are composed of a plurality of regularly arranged convex lenses 9041. In this application, the filling density of the convex lenses 9041 in the nasal diffraction region 9048 and the temporal diffraction region 9049 is relatively high, exceeding 50%. The corresponding placement of the nasal diffraction region 9048 and the temporal diffraction region 9049 on the left and right sides of the central optical region 9042 conforms to the physiological structure of the left and right visual fields of the eye, ensuring that the defocus signal can cover the key peripheral areas of the eye; the use of regularly arranged convex lenses 9041 in both regions with a filling density exceeding 50% ensures sufficient defocus for hyperopia, avoiding weakened control effects due to insufficient defocus, and also ensures uniform distribution of the defocus signal through regular arrangement, preventing visual discomfort caused by local defocus disorder.

[0041] According to a preferred embodiment, a plurality of convex lenses 9041 form a plurality of layers in the nasal diffraction region 9048 and the temporal diffraction region 9049. The plurality of layers in the nasal diffraction region 9048 and the temporal diffraction region 9049 are configured as fan-shaped diffusion extensions; or, the plurality of layers in the nasal diffraction region 9048 and the temporal diffraction region 9049 are configured as rectangular diffusion extensions. The convex lenses 9041 in the nasal diffraction region 9048 and the temporal diffraction region 9049 form a hierarchical structure, and the fan-shaped or rectangular diffusion extension design allows the defocus energy to be distributed in a gradient along the diffusion direction, adapting to the sensitivity differences of different areas of the left and right sides of the eye to the defocus signal, avoiding visual distortion caused by abrupt changes in the defocus signal; at the same time, the gradient extension expands the defocus coverage area, ensuring that more peripheral areas of the nasal and temporal sides of the eye can receive effective defocus signals, improving the coverage and adaptability of the control.

[0042] According to a preferred embodiment, the nasal diffraction region 9048 and the temporal diffraction region 9049 cover the same area on the lens body 9040; or, the nasal diffraction region 9048 covers a smaller area on the lens body 9040 than the temporal diffraction region 9049. The arrangement of the nasal diffraction region 9048 and the temporal diffraction region 9049 can generate unequal defocusing amounts, thereby achieving axial length control.

[0043] According to a preferred embodiment, a convex lens 9041 is disposed on the central optical region 9042. A plurality of convex lenses 9041 are disposed within the central optical region 9042 near its outer edge to form at least four layers. Two of the at least four layers are a plurality of convex lenses 9041 arranged in a ring near the outer edge of the central optical region 9042. The other two are a plurality of convex lenses 9041 extending radially in a strip shape to the slit region 9043 of the central optical region 9042. The convex lenses 9041 enable the central optical region 9042 to have a high defocus amount, generating a central defocus signal within 10 to 20 degrees of the periphery of the fovea of ​​the user's eye, thereby achieving a high defocus amount filling of the user's eye.

[0044] According to a preferred embodiment, the slit region 9043 is concentrically arranged with the central optical region 9042. A plurality of concave lenses 9046 are arranged within the slit region 9043. The filling density of the concave lenses 9046 in the slit region 9043 is less than the filling density of the concave lenses 9046 in the concave lens region 9044. By filling the slit region 9043 with sparser concave lenses 9046, this invention can generate a contrast signal in the macular region of the user's retina and compensate for minor inaccuracies in the optometrist's assessment of the user's prescription (i.e., deviations within two digits), thus achieving a clearer retinal image and improved myopia control. Preferably, the power range of the concave lenses 9046 in the slit region 9043 is 50° to 100°. The lower power of the concave lenses 9046 in the slit region 9043 avoids excessive contrast, which could reduce overall image clarity.

[0045] According to a preferred embodiment, a cylindrical lens can also be provided within the slit region 9043. When a cylindrical lens is provided, the ratio of the concave lens 9046, the cylindrical lens, and the blank area of ​​the slit region 9043 is 1:1:1. When the user's eye prescription remains constant, the focal point of the combination of the concave lens 9046 and the convex lens at the slit region 9043 falls behind the retina, while the focal point of the blank area falls on the retina, achieving myopia control. When the user's prescription increases (e.g., by 50°), the focal point of the combination of the concave lens and the convex lens at the slit region 9043 falls on the retina, while the focal point of the blank area falls in front of the retina, achieving secondary myopia control. The aforementioned placement of the concave lens 9046 and / or the cylindrical lens further enables the user's brain to select between two signals: achieving clear retinal imaging in the blank area of ​​the slit region 9043, and, on the other hand, shifting part of the focal point behind the retina after myopia worsens, forming a contrast signal.

[0046] According to a preferred embodiment, the lens further includes a comfort zone 9050 that does not overlap with the central optical zone 9042, the concave lens zone 9044, the nasal diffraction zone 9048, and the temporal diffraction zone 9049, and is located in the lens body 9040 after excluding the central optical zone 9042, the concave lens zone 9044, the nasal diffraction zone 9048, and the temporal diffraction zone 9049. A plurality of convex lenses 9041 are disposed on the comfort zone 9050. By providing convex lenses 9041 in the comfort zone 9050, this invention maintains the basic imaging function of this area, ensuring that the user can obtain clear vision even in non-primary visual areas such as peripheral vision, filling the visual gap outside the functional areas and improving overall wearing comfort.

[0047] According to a preferred embodiment, the comfort zone 9050 is located near the lower vertical edge of the lens body 9040. The filling density of the convex lenses 9041 in the comfort zone 9050 is less than the filling density of the convex lenses 9041 in the nasal diffraction zone 9048 and / or the temporal diffraction zone 9049. The microlens density within the comfort zone 9050 is less than the microlens density in other areas. The convex lenses 9041 are uniformly arranged in the comfort zone 9050. Preferably, the filling density of the convex lenses 9041 in the comfort zone 9050 is between 35% and 40%. Excessive filling density can lead to an overly strong contrast signal to the retina, resulting in decreased visual acuity. The comfort zone 9050 is located at the lower vertical edge of the lens body 9040, adapting to the visual needs of users in high-frequency scenarios such as looking down or viewing objects downwards (e.g., reading or looking at a mobile phone). The 35%-40% filling density of the convex lens 9041 is lower than that of the nasal diffraction area 9048 and / or the temporal diffraction area 9049. This ensures that the area has a certain optical accommodation capability while avoiding excessive density that would lead to an overly strong contrast signal and affect visual clarity. The uniform arrangement of the convex lens 9041 ensures stable visual effects when looking downwards, without local blurring or distortion, further improving visual comfort and scene adaptability in specific scenarios.

[0048] 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 functional eyewear having myopia prevention and astigmatism training, characterized by: The utility model provides a glasses frame, including main frame (100), the inside of left, right two sides of main frame (100) respectively sets up one, and the adjustable component (300) of telescopic and lock stop of the adjustable component (300) the end articulates has glasses leg component, the lower surface of main frame (100) is provided with nose drag (700) and lens guide frame (800) respectively, nose drag (700) is located the rear side of lens guide frame (800), the lower surface of lens guide frame (800) is provided with two groups respectively corresponding lock stop, and respectively can along the lens guide frame (800) length direction sliding lens component (900).

2. The functional eyewear with myopia prevention and astigmatism training according to claim 1, characterized in that: The main frame (100) includes a main frame body (101), a first sliding groove is formed in the rear surface of the main frame body (101) and extends in the left and right directions, a first column (103) is arranged at the middle position of the first sliding groove, and at least two first positioning holes (102) are formed in the upper surface of the main frame body (101) and communicate with the first sliding groove.

3. The functional glasses with myopia prevention and astigmatism training according to claim 2, characterized in that: The upper inner wall surface of the first sliding groove is provided with a first baffle (200), the first baffle (200) includes a first baffle body (201), a folding edge (202) is arranged on the side surface of the first baffle body (201) close to the user, a positioning boss (203) is arranged on the upper surface of the first baffle body (201) and matches the first positioning hole (102), a second positioning hole (204) is formed in the upper surface of the positioning boss (203) at both ends of the first baffle body (201), the upper surface of the first baffle body (201) is aligned and attached to the upper inner wall surface of the first sliding groove, so that a main sliding channel is formed between the first sliding groove and the first baffle (200), the positioning boss (203) is arranged in the first positioning hole (102), and the main frame (100) further includes a first locking member (104), the first locking member (104) is screwed through the second positioning hole (204) and arranged in the main sliding channel.

4. The functional glasses with myopia prevention and astigmatism training according to claim 3, characterized in that: The adjusting assembly (300) comprises an adjusting assembly body (301), a first guide groove (302) is arranged on the lower surface of the adjusting assembly body (301), the first guide groove (302) is through the end surface of the adjusting assembly body (301) near one side of the first column body (103), the end of the adjusting assembly body (301) far from the first column body (103) is twisted by 90 degrees through a turning transition section (303) and is provided with a rotary joint (304), and a first positioning groove (305) is arranged on the upper surface of the adjusting assembly body (301); the adjusting assembly body (301) is sleeved in the main slide, the first locking piece (104) can abut and lock on the inner bottom surface of the first positioning groove (305) by rotating the first locking piece (104); the glasses further comprise a first spring (400), the first spring (400) comprises a first spring body (401), the end of the first spring body (401) far from the first column body (103) is fixedly connected to the inner side wall surface of the first guide groove (302) far from the first column body (103), and the end of the first spring body (401) near the first column body (103) is provided with a first connecting ring (402), and the first connecting ring (402) is sleeved outside the first column body (103).

5. The functional eyewear with myopia prevention and astigmatism training according to claim 4, characterized in that: The mirror leg assembly comprises a side frame (500) and a telescopic leg (600), the side frame (500) comprises a side frame body (501), the inner side surface of the side frame body (501) is provided with a second sliding groove (502) penetrating in the front and back directions, the front end of the inside of the second sliding groove (502) is provided with a second column (505), the upper surface of the side frame body (501) is provided with two first auxiliary positioning holes communicating with the second sliding groove (502); the upper side inner wall surface of the second sliding groove (502) is provided with a second baffle body (503), the side surface of the side of the second sliding groove (502) close to the user is provided with an auxiliary folding edge, the upper surface of the second baffle body (503) is provided with an auxiliary positioning boss matched with the first auxiliary positioning hole, the upper surface of the auxiliary positioning boss at both ends of the second baffle body (503) is provided with a through second auxiliary positioning hole; the upper surface of the second baffle body (503) is aligned and attached with the upper side inner wall surface of the second sliding groove (502), so that the auxiliary sliding channel is formed between the second sliding groove (502) and the second baffle body (503), the auxiliary positioning boss is arranged in the first auxiliary positioning hole, the side frame (500) further comprises a second locking piece (504), the second locking piece (504) is screwed through the second auxiliary positioning hole and arranged in the auxiliary sliding channel; the telescopic leg (600) comprises a telescopic leg body (601), the upper surface of the telescopic leg body (601) is provided with a second positioning groove (602) at the front position, the lower surface of the telescopic leg body (601) is provided with a second guide groove (604) at the front position, the side of the second guide groove (604) close to the second column (505) penetrates the front end surface of the telescopic leg body (601), the telescopic leg body (601) is sleeved in the auxiliary sliding channel, the second locking piece (504) can abut and lock on the inner bottom surface of the second positioning groove (602) by rotating the second locking piece (504), the second guide groove (604) is arranged with a second spring body (605), one end of the second spring body (605) is fixedly connected with the inner side wall surface of the side of the second guide groove (604) away from the second column (505), the other end of the second spring body (605) is provided with a second connecting ring (606), the second connecting ring (606) is sleeved outside the second column (505).

6. The functional eyewear with myopia prevention and astigmatism training according to claim 5, characterized in that: The front end surface of the telescopic leg body (601) is provided with an elongated rod (603).

7. The multifunctional spectacle for myopia prevention and astigmatism training according to any one of claims 1 to 6, characterized in that: The lens guide frame (800) comprises a lens guide frame body (801), the lens guide frame body (801) is in the shape of "∩", the lower surface of the lens guide frame body (801) is provided with an outer guide rail (802) and an inner guide rail (803) arranged in parallel with each other, the bottom opening of the outer guide rail (802) and the bottom opening of the inner guide rail (803) are provided with limiting folds, respectively, and the outer side of the bottom surface of the outer guide rail (802) and the inner side of the bottom surface of the inner guide rail (803) are provided with racks (804).

8. The functional eyewear with myopia prevention and astigmatism training according to claim 7, characterized in that: The lens assembly (900) comprises a lens frame body (901), the upper end of the lens frame body (901) is provided with a frame guide block (902), the lower end of the lens frame body (901) is provided with a lens mounting frame (903), the lens mounting frame (903) is provided with a lens (904) inside, the outer guide rail (802) and the inner guide rail (803) are respectively connected with one of the frame guide blocks (902) in sliding mode, the upper segment of the sidewall of the lens frame body (901) is provided with a driving motor (905), the output end of the driving motor (905) is provided with a rotating shaft (906), the end of the rotating shaft (906) is provided with a gear (907), and the gear (907) is engaged with the rack (804).

9. The functional eyewear with myopia prevention and astigmatism training according to claim 8, characterized in that: The lens (904) comprises a lens main body (9040) provided with a central optical zone (9042) for correcting retinal center defocus and a concave lens zone (9044) vertically above the central optical zone (9042), the concave lens zone (9044) comprises a plurality of fan-shaped ring bands (9045) surrounding the central optical zone (9042), and the plurality of ring bands (9045) are arranged along the radial direction of the lens main body (9040) to form an edge of the lens main body (9040) from the central optical zone (9042), wherein, The ring band (9045) is composed of a plurality of concave lenses (9046), the area of the concave lens zone (9044) not covered by the plurality of concave lenses (9046) is a blank area (9047), and the ratio of the sum of the areas of the plurality of concave lenses (9046) to the sum of the areas of the blank area (9047) is set to be 2:3 to 3:

2.

10. The functional eyewear with myopia prevention and astigmatism training according to claim 9, characterized in that: The lens body (9040) is also provided with a nasal side diffraction area (9048) and a temporal side diffraction area (9049), the nasal side diffraction area (9048) and the temporal side diffraction area (9049) are formed outside the circular area of the central optical area (9042), and the nasal side diffraction area (9048) and the temporal side diffraction area (9049) are respectively bounded by the edges of the lens body (9040), the central optical area (9042) and the concave lens area (9044); the nasal side diffraction area (9048) and the temporal side diffraction area (9049) are respectively arranged on the left and right sides of the central optical area (9042), wherein the nasal side diffraction area (9048) and the temporal side diffraction area (9049) are both composed of a plurality of regularly arranged convex lenses (9041); a plurality of convex lenses (9041) form a plurality of levels in the nasal side diffraction area (9048) and the temporal side diffraction area (9049), wherein the plurality of levels on the nasal side diffraction area (9048) and the temporal side diffraction area (9049) are arranged in fan-shaped diffusion extension; or the plurality of levels on the nasal side diffraction area (9048) and the temporal side diffraction area (9049) are arranged in rectangular diffusion extension; the coverage area of the nasal side diffraction area (9048) on the lens body (9040) is equal to that of the temporal side diffraction area (9049); or the coverage area of the nasal side diffraction area (9048) on the lens body (9040) is smaller than that of the temporal side diffraction area (9049) on the lens body (9040); the central optical area (9042) is provided with the convex lens (9041), and a plurality of convex lenses (9041) are arranged in the central optical area (9042) close to the outer edge of the central optical area (9042) to form at least four levels, wherein two of the at least four levels are a plurality of convex lenses (9041) arranged in a ring shape close to the outer edge of the central optical area (9042), and the other two are a plurality of convex lenses (9041) extending radially to the gap area (9043) of the central optical area (9042) in a strip shape; the gap area (9043) is concentrically arranged with the central optical area (9042), wherein a plurality of concave lenses (9046) are arranged in the gap area (9043), and the filling density of a plurality of concave lenses (9046) on the gap area (9043) is smaller than that of a plurality of concave lenses (9046) on the concave lens area (9044); the gap area (9043) can also be provided with a cylindrical lens, wherein in the case of providing the cylindrical lens, the ratio of the concave lens (9046), the cylindrical lens and the blank area of the gap area (9043) is 1:1:1.Further comprising a comfort zone (9050) which does not overlap with the central optical zone (9042), the concave lens zone (9044), the nasal diffractive zone (9048) and the temporal diffractive zone (9049) and is located at a region of the lens body (9040) excluding the central optical zone (9042), the concave lens zone (9044), the nasal diffractive zone (9048) and the temporal diffractive zone (9049), wherein a plurality of convex lenses (9041) are arranged on the comfort zone (9050); the comfort zone (9050) is located at a position close to the vertical lower edge of the lens body (9040), wherein the filling density of the plurality of convex lenses (9041) on the comfort zone (9050) is less than the filling density of the plurality of convex lenses (9041) on the nasal diffractive zone (9048) and / or the temporal diffractive zone (9049).

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