Spectacle lens and spectacles

Abstract

The invention discloses a spectacle lens and glasses, and relates to the technical field of myopia prevention and control. The spectacle lens comprises a lens body and a grid lattice structure, the lens body is provided with a central optical area arranged in the optical center of the lens body and a peripheral optical area arranged around the central optical area, and the grid lattice structure is arranged on the surface of the lens body and at least partially arranged in the peripheral optical area. The grid lattice structure comprises a plurality of discretely-distributed structural units and linear connecting parts for connecting every two adjacent structural units, the structural units are point-shaped protrusions or point-shaped grooves and used for forming nodes of the grid lattice structure, and the linear connecting parts are linear protrusions or linear grooves and used for connecting the adjacent structural units to form a grid layout. The grid lattice structure can generate a continuous and uniform scattering effect on light passing through the peripheral optical area, and the imaging contrast ratio of retina imaging can be effectively reduced, so that the growth of an eye axis is slowed down, and the development of myopia is effectively controlled.

Description

Technical Field

[0001] This invention relates to the field of myopia prevention and control technology, and in particular to an eyeglass lens and eyeglasses. Background Technology

[0002] The visual environment exposes our eyes to various light intensities. Contrast refers to the difference in color and brightness of an object compared to its surroundings in visual perception. Generally, the greater the contrast, the clearer the image and the more vivid and vibrant the colors; the smaller the contrast, the more hazy the image appears. The retina is a thin membrane structure arranged on the inner surface of the human eye. This neurosensory layer consists of photoreceptor cells (rods and cones), whose function is to convert light into contrast signals, which are then transmitted to the brain via the optic nerve. Bipolar cells exist between the photoreceptor cells (rods and cones) and ganglion cells, responsible for transmitting signals from the photoreceptor cells to the ganglion cells so that the brain can analyze and process whether the image on the retina is clear. The vast majority of bipolar cells in the human retina are dwarf bipolar cells, which are the main carriers of information received by the cone cells in the retina.

[0003] If the signal absorbed by the center of a single cone receptive field is greater than the average value of cones around the receptive field (ON bipolar) or less than the average value of cones around the receptive field (OFF bipolar), then dwarf bipolar cells will emit contrast signals. A key feature of this neural structure is that bipolar cell types are only excited by contrast. Based on a multidisciplinary combination of optics, biology, and neuroscience, it has been found that an increase in contrast signals in the retina, and high contrast signals, will promote stronger bipolar cell activity. Whether due to genetic influences or the visual environment, this may promote the development of myopia and cause myopia progression. Summary of the Invention

[0004] The main objective of this invention is to provide a lens and eyeglasses designed to reduce the imaging contrast of the retina and slow down the progression of myopia.

[0005] To achieve the above objectives, the spectacle lens proposed in this invention comprises: a lens body and a grid dot matrix structure. The lens body has a central optical region and a peripheral optical region. The central optical region is located at the optical center of the lens body, and the peripheral optical region surrounds the central optical region. The grid dot matrix structure is disposed on the surface of the lens body, and at least partially disposed in the peripheral optical region. The grid dot matrix structure includes multiple discretely distributed structural units and linear connecting portions connecting adjacent structural units. Each structural unit is a dot-shaped protrusion or a dot-shaped groove, used to form nodes in the grid dot matrix structure. The linear connecting portions are linear protrusions or linear grooves, used to connect adjacent structural units to form a grid layout.

[0006] In one embodiment, the diameter of the structural unit is d1, and d1 satisfies the relationship: 30μm≤d1≤600μm.

[0007] In one embodiment, the plurality of structural units are distributed in a hexagonal lattice within the peripheral optical region, and each structural unit has a randomly perturbed displacement relative to its ideal hexagonal vertex position, the displacement being x, and the x satisfying the relationship: x < 4d1.

[0008] In one embodiment, the width of the linear connector is w, and w satisfies the relationship: 10μm≤w≤90μm.

[0009] In one embodiment, the central optical region is hexagonal, and the diameter of the inscribed circle of the central optical region is d2, wherein d2 satisfies the relationship: 4mm≤d2≤8mm.

[0010] In one embodiment, the lens body includes a base layer and a functional layer disposed on the surface of the base layer, the grid dot structure is disposed on the functional layer, and the refractive index of the material of the functional layer is different from that of the material of the base layer.

[0011] In one embodiment, the grid structure is at least partially located in the central optical region.

[0012] In one embodiment, the lens body and the grid dot matrix structure are integrally injection molded.

[0013] In one embodiment, the grid structure is formed on the surface of the lens body by laser processing.

[0014] The present invention also proposes an eyeglass, comprising: a frame and a lens, wherein the lens is mounted on the frame, and the lens comprises: a lens body and a grid dot matrix structure, the lens body having a central optical area and a peripheral optical area, the central optical area being located at the optical center of the lens body, and the peripheral optical area surrounding the central optical area; the grid dot matrix structure being disposed on the surface of the lens body, and at least partially disposed in the peripheral optical area; the grid dot matrix structure comprising a plurality of discretely distributed structural units and linear connecting portions connecting adjacent structural units; the structural units being dot-shaped protrusions or dot-shaped grooves for forming nodes of the grid dot matrix structure, and the linear connecting portions being linear protrusions or linear grooves for connecting adjacent structural units to form a grid layout.

[0015] The technical solution of the present invention adopts a grid lattice structure including multiple discretely distributed structural units and linear connecting parts connecting adjacent structural units. The linear connecting parts are used to connect adjacent structural units to form a grid layout, which can achieve continuous and uniform scattering of light passing through the peripheral optical zone. Without reducing visual acuity, it can effectively reduce the imaging contrast of retinal imaging, thereby reducing stimulation to the retina, which is conducive to slowing down the growth of the axial length of the eye and thus effectively controlling the development of myopia. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A front view of a first embodiment of the spectacle lens provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of part A in the image; Figure 3 A front view of a second embodiment of the spectacle lens provided by the present invention; Figure 4 Human eyes through Figure 1 A schematic diagram of the central optical zone of a spectacle lens for viewing objects; Figure 5 Human eyes through Figure 3 A schematic diagram of the central optical zone of a spectacle lens for viewing objects; Figure 6 Human eyes through Figure 3 A schematic diagram of the peripheral optical zone of a spectacle lens for viewing objects.

[0018] Explanation of icon numbers: Lens body 1; central optical zone 11; peripheral optical zone 12; Grid lattice structure 2; Structural unit 21; Linear connector 22; Spectacle lens 10; human eye 20.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0023] This invention proposes a spectacle lens 10.

[0024] Reference Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the spectacle lens 10 includes a lens body 1 and a grid dot matrix structure 2. The lens body 1 has a central optical region 11 and a peripheral optical region 12. The central optical region 11 is located at the optical center of the lens body 1, and the peripheral optical region 12 is arranged around the central optical region 11. The grid dot matrix structure 2 is disposed on the surface of the lens body 1, and the grid dot matrix structure 2 is at least partially disposed in the peripheral optical region 12. The grid dot matrix structure 2 includes a plurality of discretely distributed structural units 21 and linear connecting portions 22 connecting adjacent structural units 21. The structural units 21 are dot-shaped protrusions or dot-shaped grooves, used to form nodes of the grid dot matrix structure 2. The linear connecting portions 22 are linear protrusions or linear grooves, used to connect adjacent structural units 21 to form a grid layout.

[0025] It is understood that the grid dot matrix structure 2 is set on the surface of the lens body 1. That is to say, the grid dot matrix structure 2 can be set on the front surface of the lens body 1, the grid dot matrix structure 2 can also be set on the back surface of the lens body 1, or the grid dot matrix structure 2 can be set on both the front and back surfaces of the lens body 1. The structural unit 21 is constructed as dot-shaped protrusions or dot-shaped grooves, and the linear connecting part 22 is constructed as linear protrusions or linear grooves. When light enters the human eye 20 through the structural unit 21 or the linear connecting part 22, it will be scattered, thereby reducing the imaging contrast of the retina, which is beneficial to inhibiting the growth of the eye axis and realizing myopia prevention and control.

[0026] Traditional dot-diffusion lenses, as the individual dot structures increase in size and density, experience a rapid decrease in retinal image contrast, but also a rapid decline in visual acuity, significantly impacting wearing comfort and reducing myopia control effectiveness. In this embodiment, the linear connecting portion 22 connects adjacent structural units 21 to form a grid layout. This linear connecting portion 22 allows for further fine adjustment of visual contrast, achieving continuous and uniform scattering of light passing through the peripheral optical zone 12 while maximizing retinal image sharpness. This reduces retinal contrast, thereby minimizing retinal stimulation, slowing axial elongation, and effectively controlling myopia progression.

[0027] It should be noted that the central optical zone 11 is located at the optical center of the lens body 1, and has a spherical surface. The corresponding refractive power meets the prescription for human eye 20, which is used to ensure that distant objects are clearly imaged at the macula of the retina and to ensure that human eye 20 can see clearly.

[0028] According to the invention embodiment, the spectacle lens 10 has a grid dot matrix structure 2 including a plurality of discretely distributed structural units 21 and linear connecting portions 22 connecting adjacent structural units 21. The linear connecting portions 22 are used to connect adjacent structural units 21 to form a grid layout, which can achieve continuous and uniform scattering of light passing through the peripheral optical zone 12. Without reducing visual acuity, it can effectively reduce the imaging contrast of retinal imaging, thereby reducing stimulation to the retina, which is conducive to slowing down the growth of the axial length of the eye and thus effectively controlling the development of myopia.

[0029] In an embodiment of the present invention, the diameter of the structural unit 21 is d1, and d1 satisfies the relationship: 30μm≤d1≤600μm. For example, d1 can be 30μm, 150μm, 300μm, 600μm, etc., which can reduce the imaging contrast while ensuring the visual quality of the human eye 20.

[0030] Understandably, when d1 < 30 μm, the diameter of structural unit 21 is small, the optical scattering effect is weak, and the effect of reducing contrast is not obvious. When d1 > 600 μm, the diameter of structural unit 21 is large, and the human eye 20 can easily identify the existence of structural unit 21, which will disrupt the continuity and integrity of the field of vision, produce obvious visual interference, and result in poor visual quality.

[0031] In this embodiment, d1 is in the range of 30μm to 600μm, and the diameter of the structural unit 21 is moderate, which is beneficial to ensure that the structural unit 21 produces appropriate optical scattering, and can effectively reduce imaging contrast while ensuring the visual quality of the human eye 20. Preferably, d1 is 150μm, which can effectively reduce imaging contrast while ensuring the visual quality of the human eye 20.

[0032] In an embodiment of the present invention, reference is made to Figure 2 As shown, multiple structural units 21 are distributed in a hexagonal lattice within the peripheral optical zone 12, and each structural unit 21 has a randomly perturbed displacement relative to the position of its ideal hexagonal vertex, the displacement being x, which satisfies the relationship: x < 4d1. For example, x can be 3d1, 2d1, d1, etc., which can avoid affecting visual quality.

[0033] It is understandable that when all structural units 21 are located at the vertices of an ideal hexagon, a regular optical periodic structure is formed, and its optical properties are similar to those of a diffraction grating. Under this periodic structure, light waves of different wavelengths will produce different degrees of diffraction effects, causing white light to be dispersed after passing through the lens 10, forming colored interference stripes on the retina, which seriously affects visual quality.

[0034] In this embodiment, each structural unit 21 has a randomly perturbed displacement relative to its ideal hexagonal vertex position. That is, there is a gap between each structural unit 21 relative to its ideal hexagonal vertex position, which can effectively destroy the uniform arrangement characteristics between each structural unit 21, break the optical periodic structure, reduce the diffraction effect and distribute it evenly, avoid the formation of color stripes that can be perceived by the human eye 20, and thus avoid affecting the visual quality.

[0035] x < 4d1, meaning that the displacement of the random perturbation is less than four times the diameter of the structural unit 21. This ensures that while the regular optical periodic structure is disrupted, the overall distribution of the structural unit 21 remains uniform, avoiding affecting the stability of the imaging contrast reduction effect and effectively suppressing the generation of dispersion, which is beneficial to ensuring visual quality.

[0036] In an embodiment of the present invention, the width of the linear connecting portion 22 is w, and w satisfies the relationship: 10μm≤w≤90μm. For example, w can be 10μm, 50μm, 90μm, etc., which can reduce the imaging contrast while ensuring the visual quality of the human eye 20.

[0037] Understandably, when w < 10 μm, the width of the linear connector 22 is small, the optical scattering effect is poor, and the effect of reducing imaging contrast is not obvious. When w > 90 μm, the width of the linear connector 22 is large, and the human eye 20 can easily identify the existence of the linear connector 22, which will disrupt the continuity and integrity of the field of vision, produce obvious visual interference, and result in poor visual quality.

[0038] In this embodiment, w is within the range of 10μm to 90μm, and the width of the linear connector 22 is moderate, which helps to ensure that the linear connector 22 produces appropriate optical scattering, thereby reducing imaging contrast while ensuring the visual quality of the human eye 20. Preferably, d1 is 50μm, which can effectively reduce imaging contrast while ensuring the visual quality of the human eye 20.

[0039] In an embodiment of the present invention, the central optical region 11 is hexagonal, and the diameter of the inscribed circle of the central optical region 11 is d2. d2 satisfies the relationship: 4mm≤d2≤8mm. For example, d2 can be 4mm, 6mm, 8mm, etc., which is beneficial to ensure the visual comfort of the human eye 20 while ensuring the myopia prevention and control effect.

[0040] Understandably, when d2 < 4mm, the size of the central optical zone 11 is too small, making it difficult to fully cover the dynamic visual range of the human eye 20. During micro-movements, the human eye 20's gaze is easily moved out of the central optical zone 11 and into the peripheral optical zone 12, which has a grid dot matrix structure 2. Frequent switching of visual signals can cause central vision to become unstable, resulting in obvious wobbling and visual interference, which can easily cause visual fatigue and poor comfort during long-term wear. When d2 > 8mm, the size of the central optical zone 11 is too large, which will compress the effective area of ​​the peripheral optical zone 12. The area of ​​the peripheral optical zone 12 used for optical intervention is small, which weakens the myopia control effect of the lens.

[0041] In this embodiment, d2 is set within the range of 4mm to 8mm, which ensures that the central optical zone 11 fully covers the pupillary range of motion and the fovea region of the macula, providing the wearer with stable and clear central vision. At the same time, it ensures the area of ​​the peripheral optical zone 12 to implement effective and uniform optical intervention. Furthermore, the hexagonal shape of the central zone can achieve a natural geometric fit with the surrounding hexagonal lattice grid structure, which is conducive to a smooth transition of optical performance. This ensures both myopia control and the wearer's visual comfort.

[0042] In an embodiment of the present invention, the lens body 1 includes a base layer and a functional layer disposed on the surface of the base layer. The grid dot matrix structure 2 is disposed on the functional layer, and the refractive index of the material of the functional layer is different from that of the material of the base layer, which is beneficial to further reduce the imaging contrast of the retina.

[0043] It is understandable that, due to the difference in refractive index between the two materials, when light passes through the lens body 1, a refractive effect will occur at the interface between the base layer and the functional layer. The refractive effect, combined with the optical effect of the structural unit 21 and the linear connecting part 22, can further scatter the light, which is beneficial to further reduce the imaging contrast of the retina, reduce the stimulation to the retina, and thus help slow down the growth of the axial length of the eye, thereby effectively controlling the development of myopia.

[0044] In an embodiment of the present invention, reference is made to Figure 3 As shown, the grid structure 2 is at least partially located in the central optical zone 11, which can reduce the haze of the central optical zone 11 and help enhance the continuity and stability of myopia prevention and control.

[0045] It is understood that the grid dot structure 2 is at least partially located in the central optical zone 11, which can reduce the imaging contrast of the central visual field. Furthermore, the grid dot structure 2 is also at least partially located in the peripheral optical zone 12. In other words, the grid dot structure 2 can be arranged on the entire lens body 1. When the human eye 20 sees objects through the central optical zone 11 and the peripheral optical zone 12, the retina can continuously receive the modulated low imaging contrast optical signal, which can further reduce the overall imaging contrast level within the visual field and further enhance the continuity and stability of myopia prevention and control.

[0046] In an embodiment of the present invention, reference is made to Figure 4 As shown, when the central optical zone 11 of the spectacle lens 10 does not have a grid dot structure 2, the contrast of the object viewed by the human eye 20 through the central optical zone 11 does not decrease, and the contrast of the target is 100%. Figure 5 As shown, when the central optical zone 11 of the spectacle lens 10 has a grid structure 2, with only the linear connecting portion 22 located in the central optical zone 11, the contrast of the human eye 20 is slightly reduced when viewing objects through the central optical zone 11, and the contrast of the target is 97%. At this time, the macula of the human eye 20 ensures clear vision without causing additional visual fatigue. This area is also the area where the contrast stimulation for myopia is most significant. (Refer to...) Figure 6 As shown, when the human eye 20 uses the peripheral optical zone 12 to view objects, the contrast of the target further decreases, down to 90%.

[0047] In an embodiment of the present invention, the lens body 1 and the grid dot matrix structure 2 are integrally injection molded, which can realize the one-time molding of the lens body 1 and the grid dot matrix structure 2. That is, the grid dot matrix structure 2 is formed on the surface of the lens body 1 at the same time as the lens body 1 is formed, reducing the number of production steps, thereby improving the production efficiency of the spectacle lens 10 and shortening the production cycle of the spectacle lens 10.

[0048] The one-piece injection molding process can be hot injection molding. The mold core used to mold the spectacle lens 10 can be made of steel or glass, which has high precision, which is beneficial to improving the product quality of the spectacle lens 10. When mass-producing the spectacle lens 10, the high-precision mold core helps to ensure the consistency of the product quality of the spectacle lens 10.

[0049] In other embodiments of the present invention, the grid dot matrix structure 2 is formed on the surface of the lens body 1 by laser processing. It is understood that laser processing offers high precision, which helps ensure the dimensional accuracy of the structural unit 21 and the linear connecting portion 22, so that the diameter of the structural unit 21 is within the range of 30μm to 600μm and the width of the linear connecting portion 22 is within the range of 10μm to 90μm. This effectively reduces imaging contrast while ensuring the visual quality of the human eye 20. Specifically, the laser can perform etching and writing on the surface of the lens body 1 to process the grid dot matrix structure 2.

[0050] The present invention also proposes an eyeglass, including a frame and a lens 10. The lens 10 is mounted on the frame. The lens 10 includes a lens body 1 and a grid dot matrix structure 2. The lens body 1 has a central optical area 11 and a peripheral optical area 12. The central optical area 11 is located at the optical center of the lens body 1, and the peripheral optical area 12 is arranged around the central optical area 11. The grid dot matrix structure 2 is disposed on the surface of the lens body 1, and the grid dot matrix structure 2 is at least partially disposed in the peripheral optical area 12. The grid dot matrix structure 2 includes a plurality of discretely distributed structural units 21 and linear connecting portions 22 connecting adjacent structural units 21. The structural units 21 are dot-shaped protrusions or dot-shaped grooves, used to form nodes of the grid dot matrix structure 2. The linear connecting portions 22 are linear protrusions or linear grooves, used to connect adjacent structural units 21 to form a grid layout.

[0051] According to an embodiment of the present invention, the lens 10 of the eyeglasses includes a plurality of discretely distributed structural units 21 and linear connecting portions 22 connecting adjacent structural units 21. The linear connecting portions 22 are used to connect adjacent structural units 21 to form a grid layout, which can achieve continuous and uniform scattering of light passing through the peripheral optical zone 12. Without reducing visual acuity, it can effectively reduce the imaging contrast of retinal imaging, thereby reducing stimulation to the retina, which is conducive to slowing down the growth of the axial length of the eye and thus effectively controlling the development of myopia.

[0052] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An ophthalmic lens, characterized in that, include: A lens body having a central optical region and a peripheral optical region, the central optical region being located at the optical center of the lens body, and the peripheral optical region surrounding the central optical region; and... A grid dot matrix structure is disposed on the surface of the lens body, and the grid dot matrix structure is at least partially disposed in the peripheral optical area; The grid structure includes multiple discretely distributed structural units and linear connecting parts that connect adjacent structural units. The structural unit is a dot-shaped protrusion or a dot-shaped groove, which is used to form the nodes of the grid dot matrix structure. The linear connecting part is a linear protrusion or a linear groove, which is used to connect adjacent structural units to form a grid layout.

2. The ophthalmic lens of claim 1, wherein, The diameter of the structural unit is d1, and d1 satisfies the relationship: 30μm≤d1≤600μm.

3. The ophthalmic lens of claim 2, wherein, Multiple structural units are distributed in a hexagonal lattice within the peripheral optical region, and each structural unit has a randomly perturbed displacement relative to the position of its ideal hexagonal vertex, the displacement being x, which satisfies the relationship: x < 4d1.

4. The ophthalmic lens of claim 1, wherein, The width of the linear connector is w, and w satisfies the relationship: 10μm≤w≤90μm.

5. The ophthalmic lens of claim 1, wherein, The central optical region is hexagonal, and the diameter of the inscribed circle of the central optical region is d2, which satisfies the relationship: 4mm≤d2≤8mm.

6. The ophthalmic lens of claim 1, wherein, The lens body includes a base layer and a functional layer disposed on the surface of the base layer. The grid dot structure is disposed on the functional layer, and the refractive index of the material of the functional layer is different from that of the material of the base layer.

7. The ophthalmic lens of claim 1, wherein, The grid structure is at least partially located in the central optical region.

8. The ophthalmic lens of claim 1, wherein, The lens body and the grid dot matrix structure are integrally injection molded.

9. The ophthalmic lens of claim 1, wherein, The grid structure is formed on the surface of the lens body by laser processing.

10. Eyeglasses, characterized in that, include: Picture frames; as well as, The spectacle lens is the spectacle lens according to any one of claims 1 to 9, and the spectacle lens is mounted on the frame.

Images