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

Abstract

The invention discloses a high-visibility point diffusion multi-point defocus lens and glasses with far and myopia protection, the high-visibility point diffusion multi-point defocus lens comprises a lens body, the lens body is provided with a central visual area, a point diffusion area, a defocus light condensation area and a peripheral visual 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 present invention relates to the technical field of optical lenses, and in particular to a high-visibility point-diffusion multi-point defocus lens and glasses that can protect both myopia and farsightedness. Background Art

[0002] Many underage myopic patients will still experience a rapid increase in myopia after wearing corrective 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 myopic lenses consider moving the imaging surface backward as a whole, but ignore 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 top 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. Summary of the invention

[0004] The purpose of the present invention is to provide a high-visibility point diffusion multi-point defocus lens and glasses that protect against both farsightedness and myopia. By reasonably allocating different areas, the phenomenon of farsightedness defocus is effectively avoided, while at the same time, the stimulation of high-brightness, high-contrast, and brightly colored light to the eyeball is weakened, the growth rate of the eye axis is slowed down, and the myopia degree is protected from deepening, thereby achieving effective prevention and control of the development of myopia.

[0005] To achieve the above-mentioned purpose, the solution of the present invention is: a high-visibility point-diffusion multi-point defocus lens with both farsightedness and nearsightedness protection, comprising 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;

[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 number of regularly arranged diffusion units;

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

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

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

[0014] Furthermore, the microlenses on the defocused light-collecting area are distributed in a ring-shaped pattern, and the number of the ring-shaped patterns is 13.

[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 present invention also provides a pair of high-visibility point-diffusion multi-point defocus glasses with both farsightedness and nearsightedness protection, comprising the above-mentioned lenses.

[0017] After adopting the above scheme, the beneficial effects of the present invention are:

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

[0019] The central visual area, as an area with myopia correction, ensures that the wearer can clearly see the objects in front of him. The defocused light spot provides the wearer with myopic defocus imaging, effectively avoiding the stimulation of the eyeball caused by hyperopic defocus caused by traditional myopia lenses, thereby reducing the risk of eye axis growth and myopia deepening caused by hyperopic defocus.

[0020] The point diffusion area is set above the lens body, which effectively weakens the light entering the eyeball from above the eye, reducing the brightness, contrast and color vividness of the light, effectively avoiding stimulation to the underdeveloped eyeballs of minors, slowing down the growth of the eye axis and the deepening of myopia. The point diffusion area is designed to occupy 40% to 60% of the surface area of ​​the lens body. This ratio not only ensures that the wearer has sufficient visual range, but also further slows down the growth of the eye axis, effectively controlling the development of myopia.

[0021] The peripheral visual area also has a myopia correction degree, providing the wearer with a larger visual area range, 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 2 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 It is a schematic diagram of the surface structure of the point diffusion multi-point defocus lens according to the second embodiment of the present invention.

[0027] Description of labels:

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

[0029] Embodiment 1:

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

[0031] The present invention provides a high-visibility point-diffusion multi-point defocus lens with both long-sightedness and short-sightedness protection. 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, and adjacent areas have smooth arc transitions to ensure visual comfort and seamless visual transition when worn.

[0032] The lens body 1 is made of PC or other resin materials, which are not only light and durable, but also have good 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°, which can meet the personalized needs of different wearers and ensure the best visual correction effect.

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

[0034] The defocused light-collecting area 3 is arranged at the periphery of the central visual area 2, and is specifically distributed in a fan-shaped ring shape in the area outside the central visual area 2 and the point diffusion area 4. The defocused light-collecting area 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 peripheral visual field imaging without interfering with normal vision, that is, imaging 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 the 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 area 3 on the lens body 1 is: the inner diameter of the defocused focusing area 3 is equal to the diameter Φ1 of the central visual area 2, which is 9.9 mm, and the outer diameter Φ2 is 46.16 mm, and sufficient space is reserved for the central visual area 2 and the peripheral visual area 5 to ensure a sufficient visual range. The defocus amount of the defocused focusing area 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 annuli 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 the trajectory of a regular hexagon, and the diameter of a single microlens 31 is D1 = 1.1 mm.

[0036] The point diffusion area 4 is located at 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, which can ensure a sufficient visible 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. The diffusion unit 41 is specifically a circular groove structure with a frosted texture, which can effectively reduce the scattering of light on the surface of the point diffusion area 4 and enhance the wearer's visual experience. The distance L2 between adjacent diffusion units 41 is controlled between 0.2 and 0.6 mm to ensure the continuity of the frosted effect and avoid unnecessary interference to the line of sight due to the excessive density of the diffusion units 41. The diameter D2 of the diffusion unit 41 is controlled between 0.1 and 0.45 mm.

[0038] The point diffusion unit 41 is directly molded on the lens body 1 by injection molding, which ensures 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, so that a larger area of ​​the visual area can be provided for the wearer, ensuring the relative clarity of the peripheral vision and improving the 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] Embodiment 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 enlarged area of ​​the point diffusion area 4, and the clarity of the peripheral vision is slightly reduced.

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

[0043] Experimental example:

[0044] In order to verify the effect of the point diffusion multi-point defocus lens of the present invention on the prevention and control of myopia development in minors, the following experiment was conducted. 60 volunteers with myopia were randomly selected in the experiment, and the age range of these volunteers covered 7 to 17 years old to ensure the extensiveness and coverage of the experimental samples.

[0045] First, the volunteers were tested for the first time, and the test results were recorded. Then, each volunteer was equipped with the glasses with the point diffusion multi-point defocus lens of the present invention according to the test results. We tested the volunteers again at the time points of wearing the glasses for three months, six months, and one year, and recorded their test data in detail. The results are shown in Table 1.

[0046] Table Description:

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

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

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

[0050] Table 1 Optometry data table

[0051]

[0052]

[0053]

[0054]

[0055]

[0056]

[0057] The optometry data in Table 1 show the effect of the point diffusion multi-point defocus lens of the present invention on the development of myopia of 60 volunteers within 1 year. The optometry results show that within the time span of 1 year, the myopia of 8 volunteers (about 13.3%) with serial numbers 3, 10, 12, 32, 34, 43, 55, and 47 has deepened, and the myopia of 9 volunteers (15%) with serial numbers 2, 5, 14, 16, 18, 25, 31, 44, and 51 has decreased, which to a certain extent shows that the point diffusion multi-point defocus lens of the present invention can well protect and relax the eyes, eliminate pseudomyopia, not only can well protect the eyes and relieve eye fatigue, but also may have a positive effect on eliminating pseudomyopia. As for the remaining 43 volunteers (about 71.7%), their myopia remained basically unchanged during the year, indicating that the lens of the present invention has a good effect of preventing myopia from deepening.

[0058] To further illustrate each embodiment, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. At the same time, the directions such as up, down, front, back, left, and right involved in this embodiment are only used as a reference for directions and do not represent directions in actual use.

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

Claims

1. A high-visibility point-diffusion multi-point defocus lens with both long-sightedness and short-sightedness protection, characterized in that: The lens body comprises a central visible area, a point diffusion area, a defocused light collecting area and a peripheral visible area, and the 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 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 number of regularly arranged diffusion units; The defocused light-collecting area is distributed in a fan-shaped ring shape at the periphery of the central visible area; the peripheral visible area is distributed in a fan-shaped ring shape at the periphery of the defocused light-collecting area, and covers the edge area of ​​the lens body except the central visible area, the point diffusion area, and the defocused light-collecting area.

2. A high visibility point spread multi-point defocus lens with both farsightedness and nearsightedness protection as claimed in 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. A high visibility point spread multi-point defocus lens with both long and short vision protection as claimed in claim 2, characterized in that: The diffusion unit is a circular groove with a frosted texture.

4. The high visibility point spread multi-point defocus lens with both long and short vision protection as claimed in 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 spread multi-point defocus lens with both farsightedness and nearsightedness protection as claimed in 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. A high visibility point spread multi-point defocus lens with both farsightedness and nearsightedness protection as claimed in claim 5, characterized in that: The inner diameter of the defocused light focusing area is 9.9 mm, and the outer diameter is 46.16 mm.

7. The high visibility point spread multi-point defocus lens with both long and short sight protection as claimed in claim 1, characterized in that: The defocused light-collecting area is composed of a plurality of regularly arranged circular micro-lenses.

8. The high visibility point spread multi-point defocus lens with both long and short vision protection as claimed in claim 1, characterized in that: The microlenses on the defocused light-collecting area are distributed in a ring-shaped pattern, and the number of the ring-shaped patterns is 13.

9. The high visibility point spread multi-point defocus lens with both farsightedness and nearsightedness protection as claimed in 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 defocus glasses with both long-sightedness and short-sightedness protection, characterized in that: The lens comprises the lens as claimed in any one of claims 1 to 9.

Images