A composite myopia prevention and control lens

Abstract

The present invention relates to a composite myopia prevention and control lens, comprising a lens body, wherein the lens body has a first curved surface facing the eye and a second curved surface facing away from the eye; a clear vision area and a light diffusion area surrounding the clear vision area are provided on the first curved surface; a defocus area formed by a microlens array is provided on the second curved surface; under the main viewing angle, the defocus area is centered on the clear vision area and surrounds the clear vision area; the light diffusion area includes a plurality of light diffusion bands that diffuse from the inside to the outside with the clear vision area as the center. The beneficial effect of the composite myopia prevention and control lens is that, while the increase of myopia is slowed down through defocus stimulation, different levels of retinal contrast reduction are accurately achieved through the high-precision light diffusion area, thereby further improving the myopia prevention and control effect, and at the same time making the surface of the lens smoother, the lens has a better light projection effect, and is more beautiful in appearance.

Description

Technical Field

[0001] The present invention relates to the technical field of lenses, and in particular to a composite myopia prevention and control lens. Background Art

[0002] Myopia is a refractive state in which parallel light rays are refracted through the refractive system of the eye and their focus falls in front of the retina. Therefore, myopic people cannot see distant targets clearly. If the target is gradually moved closer to the eye, the emitted light will be dispersed to a certain extent in the eye, and the focus will move backward. When the target moves closer to a certain point in front of the eye, the closer this point is to the eye, the deeper the myopia. At this stage, there is no theoretical system that can explain all the doubts about the causes and control mechanisms of myopia, and there are certain limitations. People spend more and more time using electronic devices with display screens such as mobile phones and computers in their daily lives. Although their fine and bright pictures can bring a good visual experience, they also have a strong contrast that can stimulate the growth of the eye axis and affect vision. Therefore, reducing the contrast also provides a new idea for the prevention and control of myopia, and its feasibility has been effectively proven clinically.

[0003] Currently, the most commonly used myopia prevention and control lenses are defocus lenses. These lenses utilize the principle of myopic defocus to simultaneously correct central refractive error while utilizing relative positive peripheral optics to correct the hyperopic defocus of the peripheral retina. This, in turn, inhibits axial length growth and myopia progression induced by hyperopic defocus, thereby slowing vision progression. However, traditional defocus lenses cannot alter the contrast of retinal images, and their effectiveness in preventing and controlling myopia is limited in the environments in which people use them daily.

[0004] Therefore, there is an urgent need for a composite myopia prevention and control lens with better prevention and control effects. Summary of the Invention

[0005] (1) Technical issues to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a composite myopia prevention and control lens, which solves the technical problem that the prior art cannot reduce contrast and has unsatisfactory myopia prevention and control effect.

[0007] (2) Technical solution

[0008] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0009] The present invention provides a composite myopia prevention and control lens, comprising a lens body, wherein the lens body has a first curved surface facing the eye and a second curved surface facing away from the eye; a clear vision area and a light diffusion area surrounding the clear vision area are provided on the first curved surface; a defocus area formed by a microlens array is provided on the second curved surface; under a main viewing angle, the defocus area is centered on the clear vision area and surrounds the clear vision area; the light diffusion area includes a plurality of light diffusion bands that diffuse from the inside to the outside with the clear vision area as the center.

[0010] Optionally, the microlens array includes a plurality of microlenses; the plurality of microlenses form a microlens belt around the clear vision area, and the plurality of microlens belts diffuse outward from the right inside around the clear vision area.

[0011] Optionally, the number of the microlens strips is 7 to 12.

[0012] Optionally, the defocus degree of the microlens strip is +3.00D to +6.00D.

[0013] Optionally, the lens body includes a protective layer, a light transmittance adjustment layer, a blue light filter layer and an optical substrate layer arranged from front to back; the outer surface of the optical substrate layer is the first curved surface, and the outer surface of the protective layer is the second curved surface.

[0014] Optionally, an acquisition system is also included; the acquisition system includes a micro sensor, a micro processor, a gyroscope and an accelerometer; the micro sensor is integrated into the optical substrate layer, and the micro processor, the gyroscope and the accelerometer can be integrated into the frame.

[0015] Optionally, the microsensor includes a retinal activity detector and a pupil dilation detector.

[0016] Optionally, the light diffusion belt includes a plurality of diffusion points; the diameter of the diffusion point is α, the value range of α is 0.1-0.5 mm, and the distance between two diffusion points is d=Δ 2 +α, Δ=0.4~0.8mm.

[0017] Optionally, the clear vision area is circular in shape, with a diameter of 3 to 5 mm.

[0018] (3) Beneficial effects

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides a composite myopia prevention and control lens. The light diffusion area on the first curved surface can change the contrast and brightness of the image in front of the line of sight on the retina, reducing hue differences, thereby achieving the effect of myopia prevention and control. The microlens defocus area on the second curved surface forms a defocus stimulus, slowing the increase in myopia. Compared with the existing technology, the defocus stimulus slows the increase in myopia while the high-precision light diffusion area accurately achieves different levels of contrast reduction, further improving the myopia prevention and control effect. At the same time, the lens surface is made smoother, the lens has better light projection effect, and is more beautiful in appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic front view of a composite myopia prevention and control lens in Example 1 of the present invention;

[0022] Figure 2 yes Figure 1 A magnified image of the middle figure;

[0023] Figure 3 1 is a side view schematic diagram of a composite myopia prevention and control lens in Example 1 of the present invention;

[0024] Figure 4 is a diagram of the layered structure of the lens body in Example 1 of the present invention;

[0025] Figure 5 This is a schematic front view of the closely arranged micro-lens strips of the composite myopia prevention and control lens in Example 1 of the present invention;

[0026] Figure 6 This is a schematic main view of the composite myopia prevention and control lens in Example 2 of the present invention.

[0027] [Description of Reference Numerals]

[0028] 1: lens body; 11: first curved surface; 12: second curved surface; 13: protective layer; 14: light transmission adjustment layer; 15: blue light filter layer; 16: optical substrate layer;

[0029] 2: photopic area;

[0030] 3: light diffusion area; 31: diffusion point;

[0031] 4: defocused area; 41: microlens. DETAILED DESCRIPTION

[0032] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0033] Example 1:

[0034] like Figure 1-Figure 3 As shown, a specific embodiment of the present invention provides a composite myopia prevention and control lens, including a lens body 1, the lens body 1 having a first curved surface 11 facing the eye and a second curved surface 12 facing away from the eye. A clear vision area 2 and a light diffusion area 3 surrounding the clear vision area 2 are provided on the first curved surface 11; a defocus area 4 formed by a microlens array is provided on the second curved surface 12. Under the main viewing angle, the defocus area 4 is centered on the clear vision area 2 and surrounds the clear vision area 2. The light diffusion area 3 includes a plurality of light diffusion bands that diffuse from the inside to the outside with the clear vision area 2 as the center. In this embodiment, the shape of the light diffusion band is a circle or a regular polygon. The light diffusion band is formed by a plurality of diffusion points 31 surrounding the clear vision area 2. The diameter of the diffusion point 31 is α, and the value range of α is 0.1 to 0.5 mm. The distance between the two diffusion points 31 is d = Δ 2 +α, Δ = 0.4-0.8 mm. In this embodiment, the photopic area 2 is circular with a diameter of 3-5 mm. The precise diffusion points 31 and dot pitch of the light diffusion area 3, as well as their relationship, ensure a contrast reduction effect while meeting retinal contrast reduction requirements in various situations.

[0035] Specifically, the light is refracted on the retina through the clear vision area 2 on the lens body to ensure normal vision; the defocusing stimulation is formed through the second curved microlens defocusing area 4 to slow down the increase in degree, and the light diffusion area 3 on the first curved surface can reduce the contrast and brightness of the image in front of the line of sight on the retina, reduce the hue difference, and further improve the effect of myopia prevention and control. The precise diffusion points 31 and point spacing size of the light diffusion area 3, as well as the relationship between the two, can meet the retinal contrast reduction requirements of different situations while ensuring the contrast reduction effect. Compared with the existing technology, it slows down the increase in myopia through defocus stimulation, and accurately achieves different levels of contrast reduction through the high-precision light diffusion area 3, further improving the myopia prevention and control effect, while making the surface of the lens smoother, the lens has a better projection effect on light, and is more beautiful in appearance.

[0036] Furthermore, due to the physiological characteristics of the human eye and the varying degrees of myopia among different users, it is appropriate to provide myopia prevention and control lenses with different contrast levels tailored to each user. In this embodiment, the contrast reduction effect of the diffusion dots 31 diameter and dot pitch is divided into three levels: mild, moderate, and high, to meet the retinal contrast reduction requirements of different situations.

[0037] It is generally recommended to select a slight reduction for diopters less than -3.00D: the diameter α of the diffusion point 31 ranges from 0.1 to 0.3 mm, and the distance d between two adjacent diffusion points 31 is Δ 2 +α, Δ=0.4~0.8mm.

[0038] The diopter is moderately reduced between -3.00D and -6.00D: the diameter α of the diffusion point 31 ranges from 0.2 to 0.4 mm, and the distance d between two adjacent diffusion points 31 is Δ 2 +α, Δ=0.4~0.8mm.

[0039] When the diopter is greater than -6.00D, the height is reduced: the diameter α of the diffusion point 31 ranges from 0.3 to 0.5 mm, and the distance between two adjacent diffusion points 31 is d = Δ 2 +α, Δ=0.4~0.8mm.

[0040] This can more effectively improve the effect of the light diffusion area 3, but the specific conditions of each person's glasses are different, and the doctor or optometrist selects the appropriate gear according to the refractive power and axial length.

[0041] Furthermore, if Figure 1-Figure 3 As shown, in this embodiment, the microlens array is formed by a plurality of microlenses 41. The plurality of microlenses 41 form microlens strips around the clear vision area 2. The microlens strips are circular in shape and spread outward from the inside around the clear vision area 2. The number of microlens strips is 7 to 12, and the defocus power of the microlens strips is +3.00D to +6.00D. Two adjacent microlens strips can be arranged closely or spaced apart, such as Figure 5 As shown, the spacing is 0.3 to 0.9 mm, which is more suitable for the retinal structure of different eyes and conforms to the physiological characteristics of the human eyeball, ensuring good wearing comfort while ensuring the defocus effect.

[0042] In this embodiment, the clear vision zone 2 can have a diopter consistent with the user's myopia level, ensuring that the image of an object falls on the user's retina. This solves the problem of myopic patients having difficulty seeing distant objects due to myopia. The light diffusion zone 3 surrounding the clear vision zone 2 reduces contrast and, in conjunction with the defocus zone 4, focuses light in front of the user's retina, thereby inhibiting axial length growth and effectively preventing vision loss.

[0043] Furthermore, if Figure 4 As shown, the lens body 1 includes a protective layer 13, a light transmission adjustment layer 14, a blue light filter layer 15 and an optical substrate layer 16 arranged from front to back. Among them, the protective layer 13: is made of special materials and has undergone surface hardening treatment, which can effectively resist scratches. At the same time, a super hydrophobic coating is added to enhance the self-cleaning function. The light transmission adjustment layer 14: uses optical color change technology to automatically adjust the lens transmittance according to the ambient light intensity. The blue light filter layer 15: uses special materials to effectively absorb and reflect high-energy blue light to protect the eyes. The optical substrate layer 16: adopts a high-transparency, lightweight, impact-resistant optical substrate to ensure the basic optical properties and strength of the lens. Through high-precision integrated manufacturing technology, the close combination between the layers is ensured, avoiding inter-layer reflections and other problems that may affect the visual effect. The outer surface of the optical substrate layer 16 is the first curved surface 11, and the outer surface of the protective layer 13 is the second curved surface 12.

[0044] In this embodiment, the lens also includes a data acquisition system, which includes a microsensor, a microprocessor, a gyroscope, and an accelerometer (all not shown). The microsensor is integrated into the optical substrate layer 16, and the microprocessor, gyroscope, and accelerometer can be integrated into the frame. The microsensors include, but are not limited to, retinal activity detectors, pupil dilation detectors, etc. The microsensors can capture the state of the wearer's eyes and the movement of the wearer's head and body in real time, and generate corresponding electrical signals. The electrical signals are sent to the microprocessor, which then processes them and sends them to the user's mobile terminal, allowing the user to view the movement of the wearer's eyes, head, and body in real time.

[0045] Example 2:

[0046] like Figure 6 As shown, this embodiment provides another composite myopia prevention and control lens, which differs from the composite myopia prevention and control lens described in Example 1 in that the shape of the microlens band is a regular polygon, and the shape of the microlens band in this embodiment is a regular hexagon. The shape of the defocus area 4 corresponds to the shape of the microlens band, so the shape of the defocus area 4 is also a regular hexagon, which can also achieve a defocusing effect.

[0047] Example 3:

[0048] The present embodiment provides a pair of glasses, including the myopia prevention and control lenses and frames described in Example 1. In this embodiment, a microprocessor is integrated into the frame, and sufficient space is reserved around the microprocessor for heat dissipation and protection; a defocus adjustment layer and a light scattering adjustment layer are also provided between the blue light filter layer 15 and the optical substrate layer 16, which are used to adjust the defocus and light scattering effects respectively; the defocus adjustment layer is integrated with a first regulator, and the light scattering adjustment layer is provided with a second regulator, and the first regulator and the second regulator are connected to the microprocessor by signal. Thus, the microprocessor analyzes the data collected by the microsensor, adaptively controls the first regulator and the second regulator to adjust the electric field of the defocus adjustment layer and the light scattering adjustment layer respectively, thereby changing their refractive indices, and realizing dynamic adjustment of defocus and light scattering respectively.

[0049] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0050] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0052] In the description of this specification, the terms "one embodiment", "some embodiments", "embodiments", "examples", "specific examples" or "some examples" refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example and included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are mutually inconsistent.

[0053] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A composite myopia prevention and control lens, characterized in that: The lens body (1) comprises a first curved surface (11) facing toward the eye and a second curved surface (12) facing away from the eye; The first curved surface (11) is provided with a clear vision area (2) and a light diffusion area (3) surrounding the clear vision area (2); A defocused area (4) formed by a microlens array is provided on the second curved surface (12); Under the main viewing angle, the defocus area (4) is centered on the clear vision area (2) and surrounds the clear vision area (2); The light diffusion area (3) includes a plurality of light diffusion bands that diffuse from the inside to the outside with the clear vision area (2) as the center; The lens body (1) comprises a protective layer (13), a light transmission adjustment layer (14), a blue light filtering layer (15), and an optical substrate layer (16) arranged from front to back; The outer surface of the optical substrate layer (16) is the first curved surface (11), and the outer surface of the protective layer (13) is the second curved surface (12); It also includes the acquisition system; The acquisition system includes a micro sensor, a micro processor, a gyroscope and an accelerometer; The micro sensor is integrated into the optical substrate layer (16), and the micro processor, the gyroscope and the accelerometer can be integrated into the frame; The microsensors include a retinal activity detector and a pupil dilation detector; A defocus adjustment layer and a light scattering adjustment layer are provided between the blue light filter layer (15) and the optical substrate layer (16), respectively used to adjust the defocus and light scattering effects; the defocus adjustment layer is integrated with a first adjuster, and the light scattering adjustment layer is provided with a second adjuster, and the first adjuster and the second adjuster are connected to a microprocessor by signal; the first adjuster and the second adjuster respectively adjust the electric field of the first liquid crystal layer and the second liquid crystal layer, thereby changing the refractive index of the first liquid crystal layer and the second liquid crystal layer; The micro-sensor can capture the wearer's eye status and the movement of the wearer's head and body in real time, generate corresponding electrical signals, and send the electrical signals to the micro-processor; The microprocessor analyzes the data collected by the microsensor and adaptively controls the first regulator and the second regulator to adjust the electric field of the defocus adjustment layer and the light scattering adjustment layer respectively, thereby changing their refractive indices, thereby achieving dynamic adjustment of defocus and light scattering respectively; The shape of the light diffusion band is a regular polygon; The microlens array includes a plurality of microlenses (41); The plurality of microlenses (41) form a microlens belt around the clear vision area (2), and the plurality of microlens belts spread from inside to outside around the clear vision area (2); The shape of the microlens strip is a regular hexagon, and the shape of the defocus area (4) is also a regular hexagon.

2. The composite myopia prevention and control lens according to claim 1, wherein: The number of the microlens strips is 7 to 12.

3. The composite myopia prevention and control lens according to claim 1, wherein: The defocus power of the microlens belt is +3.00D to +6.00D.

4. The composite myopia prevention and control lens according to claim 1, wherein: The light diffusion belt includes a plurality of diffusion points (31); The diameter of the diffusion point (31) is α, the value range of α is 0.1-0.5 mm, and the distance between two diffusion points (31) is d=Δ 2 +α, Δ=0.4~0.8mm.

5. The composite myopia prevention and control lens according to claim 1, wherein: The clear vision area (2) is circular in shape, and its diameter is 3 to 5 meters.

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