A lens and eyeglasses
By setting paths and microstructures that fit the hyperbolic space on the lens, non-uniform contrast regulation is achieved, which solves the problem of limited effectiveness of existing lenses in preventing amblyopia and improves visual comfort and prevention effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE EYE HOSPITAL OF WENZHOU MEDICAL UNIVERSITY
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-07
AI Technical Summary
The effectiveness of existing lenses in preventing amblyopia in adolescents is limited, mainly due to their insufficient optical control efficiency, visual comfort, and personalized fit, failing to fully combine the physiological characteristics and optical propagation laws of the human visual system.
Design a lens with multiple paths fitted to a hyperbolic space. The density of the microstructure distribution gradually increases as it approaches the edge, and the optical power of the microlens gradually increases. The microstructures set along the paths match the distribution of retinal cells, achieving non-uniform control of contrast.
Through non-uniform microstructure distribution, the lens can more effectively inhibit axial elongation, improve visual comfort and personalized fit, slow the progression of amblyopia, and provide more efficient prevention and control effects.
Smart Images
Figure CN224471914U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of optical device technology, and specifically relates to a lens and eyeglasses. Background Technology
[0002] In recent years, the incidence of amblyopia among adolescents has continued to rise, becoming a global public health issue. Studies have shown that the occurrence and development of amblyopia are closely related to optical signals in the visual environment, especially factors such as image contrast and spatial frequency, which may affect the growth and adjustment mechanisms of the eye axis. Existing technologies include methods that alter the contrast of the image entering the eye by setting microstructure arrays on the lens surface, thereby slowing the progression of amblyopia to some extent. However, these existing microstructures mostly employ uniform or regularly repeating distributions, which still have limitations in terms of optical modulation efficiency, visual comfort, and personalized adaptation. They fail to fully integrate the physiological characteristics and optical propagation laws of the human visual system, affecting the actual effectiveness of their prevention and control measures. Utility Model Content
[0003] This utility model is proposed based on the above-mentioned needs of the prior art. The technical problem to be solved by this utility model is to provide a lens and glasses to improve amblyopia while enhancing the user experience.
[0004] To solve the above problems, the technical solution provided by this utility model includes:
[0005] A lens is provided, comprising: a mirror surface having multiple paths fitted to a hyperbolic space, the paths being more densely distributed closer to the lens edge; and a microstructure comprising multiple microlenses distributed according to a predetermined pattern; the distribution of the microstructure adapts the contrast of the image entering the eye to the non-uniform distribution of visual effect cells in the retina, including the microstructure being disposed along the multiple paths; or disposed within a closed region enclosed by the paths; the optical power of the microlenses gradually increases radially outward from the center of the lens.
[0006] Preferably, the path is arranged in a centrally symmetrical manner.
[0007] Preferably, the size of the microstructure is 0.8 mm to 1.3 mm, and the size of the microlens is 10 to 20 μm.
[0008] Preferably, the path includes a curved path. A planar coordinate system is established with the lens center as the origin, the horizontal leftward direction as the x-axis, and the vertical upward direction as the y-axis. The curved path is represented as: x 2 +y 2 +a i x+b i y+1=0, where a i and b iLet represent the parameters of the i-th curved path. If the coordinates of the two intersection points of this curved path with the edge of the lens are (x1, y1) and (x2, y2), then... The center of the circle corresponding to the curved path is radius is
[0009] Preferably, the path further includes a straight path, which is represented as: y = k i x, where k i Let represent the slope of the i-th straight path.
[0010] Preferably, when the microstructure is arranged along the path or fills a region formed by multiple paths, adjacent microstructures are tangent.
[0011] Preferably, the microlenses on the microstructure are distributed according to a predetermined pattern, including: the microlenses are distributed on the microstructure according to a spiral trajectory; or the microlenses are distributed on the microstructure according to a concentric circle trajectory; or the microlenses are distributed on the microstructure according to a sine curve trajectory.
[0012] Preferably, multiple trajectories form multiple regions, and the microstructure is distributed in some of these regions, with the regions containing the microstructure arranged in a centrally symmetrical manner.
[0013] Preferably, the lens includes a first region corresponding to the central field of vision and a second region corresponding to the peripheral field of vision; the trajectory and microstructure are disposed in the second region.
[0014] Eyeglasses are also provided, comprising: a frame; and a lens as described above, the lens being disposed on the frame.
[0015] Compared with existing technologies, this invention proposes to achieve biological regulation of the physical quantity of "contrast," which is more advanced than "defocus." Specifically, it modulates the contrast of light entering the eye so that the image can be clearly presented on the retina without elongating the eye axis to make the image fall on the retina and thus suppressing eye axis elongation. By utilizing the position of microstructures set on the lens, different intensities and modes of contrast adjustment can be applied to different areas of the lens, corresponding to different areas of the retina. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this specification 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 recorded in the embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1This is a frontal view of a lens according to an embodiment of the present invention;
[0018] Figure 2 This is a side view of the lens in an embodiment of the present invention;
[0019] Figure 3 This is a schematic diagram of another lens in an embodiment of the present utility model;
[0020] Figure 4 for Figure 3 A schematic diagram of the trajectory in the middle section;
[0021] Figure 5 This is a schematic diagram of a microlens distribution in the microstructure of this utility model;
[0022] Figure 6 This is a schematic diagram of another microlens distribution in the microstructure of this utility model;
[0023] Figure 7 This is a schematic diagram of another microlens distribution in the microstructure of this utility model;
[0024] Figure 8 This is a schematic diagram of another lens in an embodiment of the present utility model. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] Throughout the text, the terms “top,” “bottom,” “above,” “below,” and “on top” refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates within the device. It is understood that the device is multifunctional and independent of its spatial orientation.
[0028] To facilitate understanding of the embodiments of this utility model, the following will provide further explanation and description with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.
[0029] Traditional theory holds that the development of amblyopia is primarily related to accommodative lag and peripheral defocus. While sensing light signals and forming visual images, the retina also analyzes the optical quality of the image (including sharpness, contrast, and defocus), generating corresponding biochemical signals. These signals feed back and control the rate of eye growth and development. If the signals indicate blurred imaging, the eye may compensate by accelerating its growth to "find" a clear focus, leading to excessive axial elongation and worsening amblyopia. Research has found that the human visual system is more sensitive to high-frequency (high-contrast) information. When the retina receives sufficient high-frequency information, it perceives the image as clear. Conversely, if high-frequency information is insufficient or low-frequency information dominates, the image is perceived as blurry.
[0030] Example 1
[0031] This embodiment provides a lens 1, such as Figures 1-8 As shown.
[0032] like Figure 1 As shown, the lens 1 includes a first region 2 corresponding to the central field of vision and a second region 3 corresponding to the peripheral field of vision.
[0033] Multiple paths 4, approximating a hyperbolic space, are arranged within the second region 3, resembling a Poincaré disk model. These paths 4 include both straight and curved paths. The paths 4 are more densely distributed closer to the edge of the lens 1, meaning the Euclidean distance is larger in the central region and smaller closer to the edge. A planar coordinate system is established with the center of the lens 1 as the origin, the horizontal direction to the right as the x-axis, and the vertical direction upward as the y-axis. The distance between the edge of the lens 1 and the center at its furthest point is set to 1.
[0034] Multiple straight paths are centrally symmetrically distributed in a 4-axis configuration, and multiple curved paths are centrally symmetrically distributed in a 4-axis configuration.
[0035] The straight path 4 is represented as: y = k i x, where k i Let represent the slope of the i-th straight path 4.
[0036] The curve path 4 is represented as: x 2 +y 2 +a i x+b i y+1=0, a i 2 +b i 2 -4>0, where a iand b i This represents the parameter of the i-th curve path 4. When the coordinates of the two intersection points of curve path 4 and the edge of lens 1 are (x1, y1) and (x2, y2) respectively, then... The center of the circle corresponding to curve path 4 is radius is
[0037] The lens 1 has multiple microstructures 100. Each microstructure 100 is approximately 1 mm in size and has multiple microlenses 110 arranged in a specific pattern. The microlenses 110 are used to adjust the contrast entering the human eye. Further, the size of the microlenses 110 is 10–20 μm. For example,... Figures 5-7 As shown, the microlenses 110 can be arranged on the microstructure 100 according to a spiral trajectory; or according to a concentric circle trajectory; or according to a sine curve trajectory. This arrangement facilitates the formulation of the processing path.
[0038] The microstructure 100 is arranged along the path 4 or in multiple regions divided by multiple paths 4, wherein the optical power of the microlens 110 gradually increases radially outward from the center of the lens 1 to provide a contrast setting that matches the needs of the retina.
[0039] Specifically, when the microstructures 100 are arranged along the path 4, the multiple microstructures 100 are arranged tangentially to each other, and the center of each microstructure 100 falls on the path 4, or at least a part of the microstructure 100 falls on the path 4.
[0040] Because the retina, including photoreceptor cells and ganglion cells, has a highly non-uniform cellular and visual information processing capacity, the fovea region exhibits extremely high resolution, while the resolution drops sharply in the peripheral regions. This non-uniformity determines that different retinal regions have varying sensitivities to image contrast and spatial frequency. By using the aforementioned path 4 to match the cell distribution on the retina, a sparser distribution of microstructures 100 can be naturally generated in the second region 3 of the lens 1, close to the first region 2, to meet the requirements of high resolution and high contrast, while a denser distribution of microstructures 100 is generated in the peripheral region to meet the need for stronger optical intervention in the peripheral retina. This density gradient naturally matches the functional gradient of the retina, which cannot be achieved with a uniform arrangement.
[0041] Furthermore, by arranging the microstructures along path 4 to create a continuous and smooth contrast change, the density and arrangement direction of the microstructures 100 transition naturally from the center to the edge of the lens 1, avoiding abrupt changes, which is expected to improve the wearer's visual comfort and reduce the adaptation period.
[0042] Furthermore, by adjusting the parameters of path 4, a variety of different microstructure 100 distribution patterns can be flexibly designed. This provides a robust mathematical framework for the design of personalized lenses 1 for different users with different ages, degrees of amblyopia, and different eye habits.
[0043] Fitting hyperbolic space is not an arbitrary choice, but rather because the non-uniform, continuously varying density distribution characteristics it provides, which match the physiological function of the retina, are unattainable by traditional Euclidean geometry. It elevates the design of amblyopia control optical devices from a "geometric" level to a higher level of "combining mathematics and biology," potentially achieving more effective, comfortable, and scientific intervention results.
[0044] For example, the microstructure 100 is arranged along a path on the lens 1. Figure 3 Taking the specific paths 11-18 marked in the image as an example, further... Figure 4 This is a detailed illustration of eight characteristic paths, on which multiple microstructures 100 are arranged tangentially to each other and distributed along the paths.
[0045] Specifically, paths 12 and 16 are symmetrical circular arcs with small curvatures, meaning their centers are far from the unit disk and have large radii. Let the center of path 11 be at (0, c1), then its equation is x. 2 +(y-c1) 2 =c1 2 -1, where c1 is a positive number much greater than 1, such as c1 = 3. Path 17 is symmetrically located on the lower side, and the corresponding equation is: x 2 +(y+c1) 2 =c1 2 -1.
[0046] Paths 11 and 17 have greater curvature than paths 12 and 16, meaning their corresponding centers are closer to lens 1, resulting in smaller radii and more pronounced curvature. Let the center of path 11 be at (0, c2), then its equation is x. 2 +(y-c2) 2 =c2 2 -1, where c2 is a positive number smaller than c1 and greater than 1, such as c2 = 2. Path 17 is symmetrically located on the left, and the corresponding equation is: x 2 +(y+c2) 2 =c2 2 -1.
[0047] Path 13 and Path 15 are straight lines passing through the origin, represented as y = k1x, where k1 > 0. Since there are no paths in the first region 2, the straight lines are two broken paths in the first region 2.
[0048] Path 14 and Path 18 are straight lines passing through the origin, represented as y = k2x, where k2 < 0. Since there are no paths in the first region 2, the straight lines are two broken paths in the first region 2.
[0049] Furthermore, k1 and k2 are opposites of each other, i.e., k1 = -k2.
[0050] For example, the microstructure 100 is disposed in the region formed by the path combining with the second region 3, such as Figure 8 As shown, the microstructure 100 is distributed in a portion of the distribution area, and the distribution area where the microstructure 100 is disposed is centrally symmetrical.
[0051] This invention utilizes hyperbolic space to arrange microstructures on a lens. Through its unique mathematical and geometric foundation and its high degree of compatibility with the physiological characteristics of the retina, it achieves technical effects that traditional uniform arrangement methods cannot reach. This includes, but is not limited to,
[0052] This invention helps improve the effectiveness and accuracy of amblyopia prevention and control. Utilizing the inherent characteristic of hyperbolic space—that it is denser closer to the edge—it creates a higher density of microstructures in the peripheral region of the lens. This perfectly matches the theory that "peripheral hyperopic defocus / low contrast signals are key to stimulating axial elongation," enabling more efficient transmission of inhibitory optical signals to the peripheral retina, thereby more effectively slowing down axial elongation. The non-uniform arrangement allows for zoned modulation of visual signals at different spatial frequencies. While preserving high contrast in the central region (ensuring central vision), it selectively modulates the mid-to-low spatial frequency contrast in the peripheral region, intervening in the regulatory mechanism of eye growth at the signal source.
[0053] This invention significantly enhances visual comfort and adaptability. The microstructure density changes continuously and smoothly from the center to the edge of the lens, following the mathematical laws of hyperbolic space. This avoids visual interference such as glare and fluctuations that may occur with traditional discrete or abrupt density changes. The microstructure distribution in the central region is relatively sparse, minimizing interference with central vision and high-sharpness visual tasks. This ensures visual quality for the wearer in scenarios such as reading and distance viewing, improving the product's acceptability and daily wearability.
[0054] This invention achieves a balance between scientific design and customizability, with the layout based on a rigorous hyperbolic space model rather than empirical trial and error. This makes the design highly repeatable, analyzable, and optimizable, providing a solid mathematical foundation for performance improvement and iteration. By adjusting the trajectory path parameters, various layout schemes with different density gradient characteristics can be flexibly generated, providing a powerful design tool for developing personalized products for different user groups.
[0055] This invention innovatively applies abstract mathematical geometric models to the field of amblyopia prevention and control, creating a microstructure arrangement paradigm that matches the physiological structure and function of the human eye. It transcends the limitations of traditional geometric arrangements, achieving synergistic improvements in effectiveness, comfort, and scientific rigor.
[0056] Example 2
[0057] This embodiment provides a pair of eyeglasses, which include a frame and lenses as described in Embodiment 1.
[0058] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A lens, characterized in that, include: The mirror surface has multiple paths that fit a hyperbolic space, with the paths being more densely distributed closer to the edge of the mirror. The microstructure includes multiple microlenses distributed according to a predetermined pattern; the distribution of the microstructure adapts the contrast of the image entering the eye to the non-uniform distribution of visually influential cells in the retina, including the microstructure being arranged along the multiple paths; or arranged in the region enclosed by the paths; the optical power of the microlenses gradually increases radially outward from the center of the lens.
2. The lens according to claim 1, characterized in that, The lens includes a first region corresponding to the central field of vision and a second region corresponding to the peripheral field of vision; the path and microstructure are disposed in the second region.
3. The lens according to claim 1, characterized in that, The path is arranged in a centrally symmetrical manner.
4. The lens according to claim 1, characterized in that, The microstructure has a size of 0.8 mm to 1.3 mm, and the microlens has a size of 10 to 20 μm.
5. The lens according to claim 1, characterized in that, The path includes a curved path. A planar coordinate system is established with the lens center as the origin, the horizontal leftward direction as the x-axis, and the vertical upward direction as the y-axis. The distance between the lens edge at its furthest point from the center and the center is set to 1. The curved path is represented as follows: x 2 +and 2 +a i x+b i y+1=0 a i 2 +b i 2 -4>0 Where a i and b i Let represent the parameters of the i-th curved path. If the coordinates of the two intersection points of this curved path with the edge of the lens are (x1, y1) and (x2, y2), then... The center of the circle corresponding to the curved path is radius is 6. The lens according to claim 5, characterized in that, The path also includes a straight path, which is represented as: y = k i x, where k i Let represent the slope of the i-th straight path.
7. The lens according to claim 1, characterized in that, When the microstructure is arranged along the path or fills a region formed by multiple paths, adjacent microstructures are tangent.
8. The lens according to claim 1, characterized in that, The microlenses on the microstructure are distributed according to a predetermined pattern, including: the microlenses are distributed on the microstructure according to a spiral trajectory; or the microlenses are distributed on the microstructure according to a concentric circle trajectory; or the microlenses are distributed on the microstructure according to a sine curve trajectory.
9. The lens according to claim 2, characterized in that, Multiple trajectories combine with the second region to form multiple distribution areas, and the microstructure is distributed in some of these distribution areas. The distribution areas containing the microstructure are arranged in a centrally symmetrical manner.
10. A pair of eyeglasses, characterized in that, include: Picture frames; The lens as described in any one of claims 1-9, wherein the lens is disposed on the frame.