High-visibility point diffusion multi-point out-of-focus lens and glasses with far-myopia protection function

Abstract

The utility model discloses a high visibility point diffusion multipoint out-of-focus lens and glasses with far and myopia protection, which comprise a lens body, the lens body is provided with a central visible area, a point diffusion area, an out-of-focus light condensation area and a peripheral visible area, and the adjacent areas are in arc transition; the central visible area is positioned in the optical center of the lens body and is used for enabling the eyes of a wearer to clearly see an object at the central position; the point diffusion area is positioned in an area outside the central visible area, is positioned in a position close to the upper part of the middle part of the lens body, and accounts for 40-60% of the surface area of the lens body; the point diffusion region consists of a plurality of diffusion units which are regularly arranged; the out-of-focus light condensation areas are distributed on the periphery of the central visible area in a fan ring shape; the peripheral visible area is distributed on the periphery of the defocus light condensation area in a fan ring shape and covers the edge area of the lens body. Through reasonable distribution of all the areas on the lenses, the hyperopia defocus phenomenon is effectively avoided, meanwhile, stimulation of high-brightness, high-contrast and bright-colored light to eyeballs is weakened, the growth speed of an eye axis is slowed down, the myopia degree is protected against deepening, and effective prevention and control of myopia development are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lenses, in particular to a high-visibility point-diffusion multi-point defocus lens and glasses with both farsightedness and myopia protection. Background Art

[0002] Many underage myopic patients will still experience a rapid increase in myopia after wearing myopia correction glasses. This is because the posterior surface of the myopic eyeball changes from a spherical surface to an ellipsoidal surface, which cannot match the spherical imaging surface well, resulting in different defocus amounts in the central and peripheral fields of view. Conventional myopia lenses consider shifting the imaging surface backward as a whole, ignoring the problem of imaging lag in the peripheral field of view, which is the phenomenon of hyperopic defocus. For adults whose eyeballs have not yet fully developed, this hyperopic defocus stimulation will accelerate the elongation of the eye axis, further deepening myopia.

[0003] In addition, in daily life, minors frequently come into contact with high-brightness, high-contrast, and colorful electronic screens, whether they are watching projection screens or electronic displays in the classroom, or are exposed to various electronic signs, billboards, and information signs in outdoor environments. Most of the light from these light sources enters through the upper part of the eyeball. Figure 1 , causing strong stimulation to the eyeball, further promoting the growth of the eye axis and accelerating the deterioration of myopia. In addition, in sunny weather outdoors, strong sunlight will also enter through the top of the eyeball, posing a potential threat to the retina. Utility Model Content

[0004] The purpose of the utility model is to provide a high-visibility point diffusion multi-point defocus lens that protects against both farsightedness and myopia. By rationally allocating different areas, it effectively avoids the phenomenon of hyperopia defocus, while reducing the stimulation of high-brightness, high-contrast, and brightly colored light to the eyeball, slowing down the growth rate of the eye axis, protecting the myopia degree from deepening, and achieving effective prevention and control of the development of myopia.

[0005] To achieve the above objectives, the present invention provides a solution: a high-visibility point-diffusion multi-point defocus lens with both farsightedness and nearsightedness protection, comprising a lens body, the lens body being provided with a central visual area, a point-diffusion area, a defocused light-collecting area, and a peripheral visual area, with arc-shaped transitions between adjacent areas; the central visual area being located at the optical center of the lens body, enabling the wearer to clearly see objects at the center of the eye;

[0006] The point diffusion area is located outside the central visual area and in the upper middle part of the lens body, accounting for 40% to 60% of the surface area of the lens body; the point diffusion area is composed of a plurality of regularly arranged diffusion units;

[0007] The defocused light-collecting area is distributed in a fan-shaped ring shape on the periphery of the central visual area; the peripheral visual area is distributed in a fan-shaped ring shape on the periphery of the defocused light-collecting area, and covers the edge area of the lens body except the central visual area, the point diffusion area, and the defocused light-collecting area.

[0008] Furthermore, the distance between adjacent diffusion units ranges from 0.2 to 0.6 mm, and the diameter of each diffusion unit ranges from 0.1 to 0.45 mm.

[0009] Furthermore, the diffusion unit is a circular groove with a frosted texture.

[0010] Furthermore, the central visual area and the peripheral visual area are both areas with myopia correction degrees.

[0011] Furthermore, the central visible area is a circle or a regular hexagon, the diameter of the central visible area at the center of the circle is 9.9 mm, and the diameter of the inscribed circle of the central visible area of the regular hexagon is 9.9 mm.

[0012] Furthermore, the inner diameter of the defocused light focusing area is 9.9 mm, and the outer diameter is 46.16 mm.

[0013] Furthermore, the defocused light focusing area is composed of a number of regularly arranged circular micro lenses.

[0014] Furthermore, the micro lenses on the defocused light focusing area are distributed in a ring-shaped pattern, with 13 ring-shaped patterns.

[0015] Furthermore, the diameter of the lens body ranges from 60 to 85 mm, and the curvature of the lens body ranges from 0 to 600°.

[0016] The utility model also provides a pair of high-visibility point-diffusion multi-point defocus glasses with both farsightedness and myopia protection, comprising the above-mentioned lenses.

[0017] After adopting the above solution, the beneficial effects of the utility model are:

[0018] The point diffusion multi-point defocus lens of this utility model realizes effective management of hyperopic light by rationally allocating different areas, reduces the stimulation of high-brightness, high-contrast, and brightly colored light on the eyeball, thereby slowing down the growth of the eye axis and effectively controlling the development of myopia.

[0019] The central visual area, which provides myopia correction, ensures that the wearer can clearly see objects directly in front of them. The defocused light zone provides myopic defocus imaging, effectively avoiding the eye stimulation caused by hyperopic defocus caused by traditional myopia lenses, thereby reducing the risk of eye axis growth and worsening myopia caused by hyperopic defocus.

[0020] The point diffusion zone, located above the lens body, effectively attenuates light entering the eye from above, reducing brightness, contrast, and color vividness. This effectively avoids irritation to the underdeveloped eyeballs of minors, slowing axial eye growth and the progression of myopia. The point diffusion zone is designed to occupy 40% to 60% of the lens' surface area, a ratio that ensures ample visual range while further slowing axial eye growth and effectively controlling the progression of myopia.

[0021] The peripheral visual zone also has a myopia correction degree, providing the wearer with a larger visual area, enhancing the breadth and comfort of the field of vision, and ensuring that the wearer can clearly see surrounding objects when turning the head or eyeballs, meeting the needs of daily activities. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of light entering the eye from above;

[0023] Figure 2 This is a schematic diagram of the surface structure of a one-point diffusion multi-point defocus lens according to an embodiment of the present invention;

[0024] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0025] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0026] Figure 5 This is a schematic diagram of the surface structure of a point diffusion multi-point defocus lens according to embodiment 2 of the present invention.

[0027] Description of labels:

[0028] 1. Lens body; 2. Central visual area; 3. Defocused focusing area; 31. Microlens; 4. Point diffusion area; 41. Diffusion unit; 5. Peripheral visual area. DETAILED DESCRIPTION

[0029] Example 1:

[0030] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] The utility model provides a high visibility point diffusion multi-point defocus lens with both long and short sight protection, such as Figures 2 to 4 As shown, it includes a lens body 1, on which a central visual area 2, a point diffusion area 4, a defocused focusing area 3 and a peripheral visual area 5 are provided. Adjacent areas transition in smooth arcs to ensure visual comfort and seamless visual transition when worn.

[0032] The lens body 1 is made of PC or other resin materials. These materials are not only lightweight and durable, but also possess excellent optical properties and impact resistance, ensuring the safety and reliability of the lens. The diameter of the lens body 1 ranges from 60 to 85 mm, and the curvature ranges from 0 to 600°, meeting the personalized needs of different wearers and ensuring optimal vision correction.

[0033] The central visual zone 2 is located at the optical center of the lens body 1 and is the area with myopia correction power. The refractive power of the central visual zone 2 is the same as the refractive power required for corrected vision, so that the image of the object at the central vision can be projected on the retina, achieving the effect of correcting central retinal defocus and central vision, so that the wearer can see objects clearly. The central visual zone 2 is circular or regular hexagonal, and the diameter Φ1 of the central visual zone 2 is 9.9mm. The diameter of the inscribed circle of the regular hexagonal central visual zone 2 is 9.9mm.

[0034] The defocused light-collecting zone 3 is arranged on the periphery of the central visual zone 2, specifically distributed in a fan-shaped ring shape in the area outside the central visual zone 2 and the point diffusion zone 4. The defocused light-collecting zone 3 is composed of a number of regularly arranged circular microlenses 31, and is distributed in a ring-shaped array. These microlenses 31 can advance the imaging of the peripheral visual field without interfering with normal vision, that is, the imaging is placed in front of the retina, forming myopic defocus. This advanced imaging can effectively slow down the frequency of axial stretching, avoid the hyperopic defocus that may be caused by traditional myopia lenses, and avoid adverse stimulation to the eyeball, thereby preventing the increase in myopia caused by axial growth.

[0035] In this embodiment, for a lens body 1 with a diameter between 60 and 85 mm, the area range of the defocused focusing zone 3 on the lens body 1 is: the inner diameter of the defocused focusing zone 3 is equal to the diameter Φ1 of the central visual zone 2, which is 9.9 mm, and the outer diameter Φ2 is 46.16 mm, leaving enough space for the central visual zone 2 and the peripheral visual zone 5 to ensure an adequate visual range. The defocus amount of the defocused focusing zone 3 is set in the range of 400-500D. Due to differences in eyeball shape, refractive state, and visual needs of different people, it is necessary to customize the most appropriate defocus amount according to the specific situation of the patient. In addition, in this embodiment, the number of annular bands is 13, refer to Figure 3 The spacing distance L1 between adjacent annular zones is 1.5877 mm, which is roughly equivalent to the straight-line distance between the centers of adjacent microlenses 31. The microlenses 31 are arranged along a regular hexagonal trajectory, and the diameter of a single microlens 31 is D1 = 1.1 mm.

[0036] The point diffusion area 4 is located on the periphery of the central visual area 2 and only covers the upper area of the lens body 1. The brightness, contrast and vividness of the light entering from above the eye through the point diffusion area 4 can be effectively weakened to avoid irritating the eyeball and causing the eye axis to elongate. In addition, the area of the point diffusion area 4 is controlled to be within the range of 40-60% of the surface area of the lens body 1. In this embodiment, Figure 2 As shown, the area of the point diffusion zone 4 accounts for 40% of the surface area of the lens body 1. Compared with the solution of completely distributing the point diffusion zone 4 on the periphery of the multi-point defocused focusing zone 3, the solution of the present application more reasonably allocates the distribution ratio of the visible area and the point diffusion zone 4. In this way, it can ensure a sufficient visual range while weakening the brightness of light, so as to further slow down the growth of the eye axis and control the development of myopia.

[0037] like Figure 4 As shown, the point diffusion area 4 is composed of a number of regularly arranged diffusion units 41. These units 41 are circular grooves with a frosted texture, effectively reducing light scattering on the surface of the point diffusion area 4 and enhancing the wearer's visual experience. The distance L2 between adjacent diffusion units 41 is controlled between 0.2 and 0.6 mm to ensure a continuous frosted effect while avoiding unnecessary interference with vision caused by overly dense diffusion units 41. The diameter D2 of the diffusion units 41 is controlled between 0.1 and 0.45 mm.

[0038] The point diffusion unit 41 is directly integrally molded on the lens body 1 through an injection molding process. This method ensures a seamless connection between the point diffusion area 4 and the lens body 1 and does not require additional processing steps.

[0039] The peripheral visual zone 5 is located in the defocused focusing zone 3, covering the edge area below the lens body 1. The peripheral visual zone 5 is the same as the central visual zone 2, and is also an area with myopia correction degree. If the edge of the lens body 1 is completely covered by the point diffusion zone 4 or the defocused focusing zone 3, the area of the visual zone with a corrective effect will be greatly reduced, affecting the visual function of the lens itself. Therefore, the present solution sets the peripheral visual zone 5 at the edge of the area below the lens body 1, which can provide the wearer with a larger area of the visual area, ensure the relative clarity of peripheral vision, and improve visual comfort and adaptability. This is crucial for the wearer to cope with the visual needs of different distances and angles in daily life.

[0040] Example 2:

[0041] In this embodiment, the area of the point diffusion region 4 accounts for 60% of the surface area of the lens body 1. Figure 5 Compared with the first embodiment, the lens body 1 of this embodiment has a slightly improved weakening effect on the upper light due to the enlargement of the point diffusion area 4, and the clarity of the peripheral vision is slightly reduced.

[0042] The utility model also provides a pair of high-visibility point-diffusion multi-point defocus glasses with both farsightedness and myopia protection, comprising the above-mentioned lenses.

[0043] Experimental example:

[0044] To verify the effectiveness of the point-diffusion multi-point defocus lens of this invention in preventing and controlling the development of myopia in minors, the following experiment was conducted. Sixty myopic volunteers aged 7 to 17 were randomly selected to ensure a broad and comprehensive sample size.

[0045] The volunteers underwent an initial eye exam, and the results were recorded. Based on these results, each volunteer was fitted with glasses featuring point-diffusion multi-point defocus lenses. The volunteers were re-examined after wearing the glasses for three months, six months, and one year, and their eye exam data was recorded in detail. The results are shown in Table 1.

[0046] Table Description:

[0047] 1. Serial numbers 1 to 60 represent different volunteers.

[0048] 2. A red "*" in the serial number indicates that the degree of myopia has increased within 1 year, and a red "#" indicates that the degree of myopia has decreased within 1 year. No symbol indicates that the degree of myopia has not changed within 1 year.

[0049] 3. (R) indicates the right eye, (L) indicates the left eye, S (SPH) indicates the spherical power (i.e. the power of glasses), S- indicates myopia, C (CYL) indicates the cylindrical power (i.e. the power of astigmatism), and A (AX) indicates the axis of astigmatism.

[0050] Table 1 Optometry data table

[0051]

[0052]

[0053]

[0054]

[0055]

[0056]

[0057] The optometry data in Table 1 demonstrates the effect of the point-diffusion multi-point defocus lens of the present invention on the progression of myopia in 60 volunteers over a one-year period. The optometry results show that within a one-year period, the myopia of 8 volunteers (approximately 13.3%), numbered 3, 10, 12, 32, 34, 43, 55, and 47, worsened, while the myopia of 9 volunteers (15%), numbered 2, 5, 14, 16, 18, 25, 31, 44, and 51, decreased. This suggests, to a certain extent, that the point-diffusion multi-point defocus lens of the present invention can effectively protect and relax the eyes, eliminate pseudomyopia, and not only effectively protect the eyes and relieve eye fatigue, but may also have a positive effect on eliminating pseudomyopia. The myopia of the remaining 43 volunteers (approximately 71.7%) remained essentially unchanged over the course of the year, indicating that the lens of the present invention has a good effect in preventing the worsening of myopia.

[0058] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant descriptions in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will be able to understand other possible implementations and the advantages of this invention. Furthermore, directions such as up, down, front, back, left, and right mentioned in this embodiment are for reference only and do not represent actual directions in use.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. Any equivalent changes made based on the key design of this case shall fall within the scope of protection of this case.

Claims

1. A high-visibility point-diffusion multi-point defocus lens with both long-sightedness and short-sightedness protection, characterized by: The lens comprises a lens body, wherein the lens body is provided with a central visual area, a point diffusion area, a defocused light-collecting area and a peripheral visual area, and adjacent areas are transitioned in an arc; The central visual area is located at the optical center of the lens body, and is used to enable the wearer's eyes to see objects clearly at the center position; The point diffusion area is located outside the central visual area and in the upper middle part of the lens body, accounting for 40% to 60% of the surface area of the lens body; the point diffusion area is composed of a plurality of regularly arranged diffusion units; The defocused light-collecting area is distributed in a fan-shaped ring shape on the periphery of the central visual area; the peripheral visual area is distributed in a fan-shaped ring shape on the periphery of the defocused light-collecting area, and covers the edge area of the lens body except the central visual area, the point diffusion area, and the defocused light-collecting area.

2. The high-visibility point-diffusion multi-point defocus lens with both long-sightedness and short-sightedness protection according to claim 1, characterized in that: The distance between adjacent diffusion units in the point diffusion area ranges from 0.2 to 0.6 mm, and the diameter of each diffusion unit ranges from 0.1 to 0.45 mm.

3. The high-visibility point-diffusion multi-point defocus lens with both long-sightedness and short-sightedness protection according to claim 2, characterized in that: The diffusion unit is a circular groove with a frosted texture.

4. The high-visibility point-diffusion multi-point defocus lens with both long-sightedness and short-sightedness protection according to claim 1, characterized in that: The central visual area and the peripheral visual area are both areas with myopia correction degrees.

5. The high-visibility point-diffusion multi-point defocus lens with both long-sightedness and short-sightedness protection according to claim 1, characterized in that: The central visible area is circular or regular hexagonal, the diameter of the central visible area at the center of the circle is 9.9 mm, and the diameter of the inscribed circle of the central visible area of the regular hexagon is 9.9 mm.

6. The high-visibility point-diffusion multi-point defocus lens with both long-sightedness and short-sightedness protection according to claim 5, characterized in that: The inner diameter of the defocused light-collecting area is 9.9 mm, and the outer diameter is 46.16 mm.

7. The high-visibility point-diffusion multi-point defocus lens with both long-sightedness and short-sightedness protection according to claim 1, characterized in that: The defocused light-collecting area is composed of a number of regularly arranged circular micro-lenses.

8. The high-visibility point-diffusion multi-point defocus lens with both long-sightedness and short-sightedness protection according to claim 1, characterized in that: The microlenses on the defocused light-collecting area are distributed in a ring-shaped pattern, with 13 ring-shaped patterns.

9. The high-visibility point-diffusion multi-point defocus lens with both long-sightedness and short-sightedness protection according to claim 1, characterized in that: The diameter of the lens body ranges from 60 to 85 mm, and the curvature of the lens body ranges from 0 to 600 degrees.

10. A high-visibility point-diffusion multi-point defocused spectacles with both long-sightedness and short-sightedness protection, characterized by: The lens comprises the lens according to any one of claims 1 to 9.

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