Dual light superposition nanolithography myopia prevention and control lens

Abstract

The utility model provides a kind of double light superposition nanolithography myopia prevention and control lens, including double light optical structure and nanolithography point diffusion structure being set on lens matrix;Double light optical structure includes far vision area and near vision area, far vision area is set in the geometric center area of lens matrix, and near vision area is set in the downside of far vision area;Nanolithography point diffusion structure covers the surface of lens matrix except far vision area and near vision area.The utility model is creatively combined by double light structure and nanolithography point diffusion structure, realizes the synergistic effect of visual function partition and fine light regulation.The far vision area and near vision area in double light structure are responsible for long-distance clear vision and close-range reading respectively, effectively reduce the adjustment burden of eye;And nanolithography point diffusion structure covering peripheral area, specific diffusion and defocus effect can be generated to light, it is helpful to intervene and offset peripheral hypermetropia defocus signal that possibly induce myopia progress, to synergistically prevent and control myopia from two key paths of adjustment and defocus.

Description

Technical Field

[0001] This utility model relates to the field of myopia control lenses, and in particular to a dual-light superimposed nanolithography myopia control lens. Background Technology

[0002] Currently, myopia prevention and control among adolescents has become an important issue in the field of public health. Optical corrective lenses, as one of the main intervention methods, have received considerable attention for their technological development. Traditional single-vision lenses can only provide single-power correction, failing to alleviate the continuous accommodative strain during near vision, and accommodative lag is considered a key contributing factor to myopia progression. While bifocal lenses, by setting up distance and near vision zones to meet visual needs at different distances, reduce accommodative load to some extent during near vision, their control effect still faces limitations. Some existing bifocal lens designs have fixed near vision zone sizes and positions, lacking precise adaptation to individual eye optical characteristics, and the optical design of the peripheral area fails to effectively intervene in peripheral hyperopic defocus, a crucial stimulus for myopia progression. Furthermore, some schemes employing microstructures for optical control have simple structural designs and light control modes, potentially introducing visual interference and affecting the balance between wearing comfort and control effectiveness.

[0003] Therefore, the existing technology has problems and needs further improvement and development. Summary of the Invention

[0004] (I) Purpose of the invention: In order to solve the problems existing in the prior art, the purpose of this utility model is to provide a myopia control lens that can more accurately adapt to the differences between the two eyes, more effectively manage accommodation and peripheral defocus, and is more comfortable.

[0005] (II) Technical Solution: To solve the above-mentioned technical problems, this technical solution provides a dual-light superimposed nano-lithography myopia control lens, including a dual-light optical structure and a nano-lithographic dot diffusion structure disposed on the lens substrate; the dual-light optical structure includes a distance vision zone and a near vision zone, the distance vision zone is disposed in the geometric center region of the lens substrate, and the near vision zone is disposed below the distance vision zone; the nano-lithographic dot diffusion structure covers the surface of the lens substrate except for the distance vision zone and the near vision zone; The nano-lithographic diffusion structure includes a far-viewing region and a filling region. The far-viewing region is arranged in a ring around the periphery of the far-viewing region. The far-viewing region is a three-ring structure consisting of an inner ring, a middle ring, and an outer ring arranged sequentially from the center outwards. The outer diameter of the outer ring of the far-viewing region is tangent to the near-viewing region. The filling region covers the lens substrate surface except for the far-viewing region, the far-viewing region, and the near-viewing region. The nanolithographic diffusion structure is a nanolithographic array formed by nanolithography. The middle ring of the far-field region, the outer ring of the far-field region, and the filling region are superimposed point diffusion structures. Each nanolithographic point of the superimposed point diffusion structure includes concentric inner circular lithographic points and outer circular lithographic points.

[0006] Furthermore, the diameter of the nano-lithographic dots in the inner ring of the far-field region is 0.03 mm; the diameter of the inner circular lithographic dots in the middle ring of the far-field region is 0.03 mm, and the diameter of the outer circular lithographic dots is 0.08 mm; the diameter of the inner circular lithographic dots in the outer ring of the far-field region is 0.03 mm, and the diameter of the outer circular lithographic dots is 0.1 mm; and the diameter of the inner circular lithographic dots in the filling region is 0.06 mm, and the diameter of the outer circular lithographic dots is 0.18 mm.

[0007] Furthermore, the diameter of the near vision zone is 12-28 mm; the added power of the near vision zone is +0.50D to +3.50D.

[0008] Furthermore, the vertical distance between the center of the near vision zone and the lower edge of the lens substrate is 5-8 mm, and the vertical distance between the center of the near vision zone and the horizontal center line of the lens is 12-15 mm.

[0009] Furthermore, the lens substrate is divided into two sets for the left and right eyes, with the difference in near vision zone diameter between the two sets of lenses being ≤2mm and the horizontal offset of the near vision zone being 0-1.5mm.

[0010] Furthermore, the centers of the inner, middle, and outer rings of the far-field region coincide with the center of the far-field region.

[0011] Furthermore, the outer diameter of the inner ring of the far-field ring is 6-9 mm, the outer diameter of the middle ring is 8-11 mm, and the outer diameter of the outer ring is 10-13 mm.

[0012] Furthermore, the distance vision zone is circular and its center coincides with the geometric center of the lens substrate; the diameter of the distance vision zone is 5-8mm, and the refractive power range is +4.00D to -10.00D.

[0013] (III) Beneficial Effects: This invention creatively combines a dual-light structure with a nano-lithographic diffusion structure, achieving a synergistic effect of visual functional zoning and fine light control. The distance vision zone and near vision zone in the dual-light structure are responsible for clear vision at a distance and near reading, respectively, effectively reducing the eye's accommodative burden. Meanwhile, the nano-lithographic diffusion structure covering the peripheral area can produce specific diffusion and defocusing effects on light, helping to intervene in and counteract peripheral hyperopic defocus signals that may induce myopia progression, thus synergistically controlling myopia through two key pathways: accommodation and defocus. Simultaneously, the lens adopts a left-right eye design, allowing parameters such as the near vision zone diameter and horizontal offset to be personalized according to the physiological differences between the two eyes. This humanized design significantly improves the lens's wearing comfort, visual fusion effect, and overall targeted myopia control. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a dual-light superimposed nano-lithography myopia control lens according to this utility model; Figure 2 This is a partially enlarged schematic diagram of a dual-light superimposed nano-lithography myopia control lens according to the present invention.

[0015] Attached reference numerals: 1. Distant viewing area; 2. Near viewing area; 4. Filled area; 5. Circumferential distant viewing area; 501. Inner ring; 502. Middle ring; 503. Outer ring. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to preferred embodiments. More details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can obviously be implemented in many other ways different from those described herein. Those skilled in the art can make similar extensions and derivations based on actual application situations without departing from the spirit of the present invention. Therefore, the scope of protection of the present invention should not be limited by the content of this specific embodiment.

[0017] The accompanying drawings are schematic diagrams of embodiments of the present invention. It should be noted that these drawings are for illustrative purposes only and are not drawn to scale, and should not be construed as limiting the scope of protection of the present invention.

[0018] like Figure 1 , 2 As shown, a dual-light superimposed nanolithography myopia control lens includes a dual-light optical structure and a nanolithographic dot diffusion structure disposed on the lens substrate; the dual-light optical structure includes a distance vision zone 1 and a near vision zone 2, the distance vision zone 1 is disposed in the geometric center region of the lens substrate, and the near vision zone 2 is disposed below the distance vision zone 1, the diameter of the near vision zone 2 is 14-28mm; the nanolithographic dot diffusion structure covers the surface of the lens substrate except for the distance vision zone 1 and the near vision zone 2.

[0019] The nano-lithographic diffusion structure includes a far-field region 5 and a filling region 4. The far-field region 5 is arranged in a ring around the periphery of the far-field region 1. The far-field region 5 is a three-layer ring structure consisting of an inner ring 501, a middle ring 502, and an outer ring 503 arranged sequentially from the center outwards. The outer diameter of the outer ring 503 of the far-field region 5 is tangent to the near-field region 2. The filling region 4 covers the lens substrate surface except for the far-field region 5, the far-field region 1, and the near-field region 2.

[0020] The nanolithographic diffusion structure is a nanolithographic array formed by nanolithography process. The middle ring 502, the outer ring 503 and the filling region 4 of the far-ring region 5 are superimposed diffusion structures. Each nanolithographic point of the superimposed diffusion structure includes an inner circular lithographic point and an outer circular lithographic point arranged concentrically.

[0021] The inner ring 501 of the distal region has a nano-lithographic dot diameter of 0.03 mm; the middle ring 502 of the distal region has an inner circular lithographic dot diameter of 0.03 mm and an outer circular lithographic dot diameter of 0.08 mm; the outer ring 503 of the distal region has an inner circular lithographic dot diameter of 0.03 mm and an outer circular lithographic dot diameter of 0.1 mm; and the filling region 4 has an inner circular lithographic dot diameter of 0.06 mm and an outer circular lithographic dot diameter of 0.18 mm. This superimposed dot diffusion structure can precisely control the angle and intensity of light diffusion, avoiding the uneven light diffusion problem caused by single-sized lithographic dots. It can better adapt to the imaging needs of different areas of the eye, effectively change the peripheral imaging state of the retina, specifically intervene in the key pathological mechanisms of myopia development, improve the stability of prevention and control effects, and slow down the progression of myopia.

[0022] The centers of the inner ring 501, middle ring 502, and outer ring 503 of the far-field region coincide with the center of the far-field region 1. The outer diameter of the inner ring 501 of the far-field region 5 is 6-9 mm, the outer diameter of the middle ring 502 is 8-11 mm, and the outer diameter of the outer ring 503 is 10-13 mm.

[0023] The lens substrate is a circular optical lens. Preferably, the lens substrate has a diameter of 65-75mm, is made of PC resin or PMMA resin, and has a light transmittance of ≥92%. The lens substrate is designed with two sets for the left and right eyes, and the structural parameters of the left and right lenses are adapted and adjusted according to the differences in interpupillary distance and axial length between the user's left and right eyes.

[0024] The near vision zone 2 is a circular convex structure, integrally formed on the lower side of the distance vision zone 1, with a smooth transition between the convex structure of the near vision zone 2 and the curvature of the lens substrate. The diameter of the near vision zone 2 is 12-28mm. The added power of the near vision zone 2 is +0.50D to +3.50D. The diameter of the near vision zone 2 is adjusted according to the added power for near work such as reading and writing. The vertical distance between the center of the near vision zone 2 and the lower edge of the lens substrate is 5-8mm, and the vertical distance between the center of the near vision zone 2 and the horizontal center line of the lens is 12-15mm. The diameter difference of the near vision zone 2 between the left and right eyes is ≤2mm, and the horizontal offset of the near vision zone 2 is 0-1.5mm.

[0025] The distance vision zone 1 is circular, with its center coinciding with the geometric center of the lens substrate. The diameter of the distance vision zone 1 is 5-8 mm, and its refractive power ranges from +4.00D to -10.00D. The distance vision zone 1 is used for clear vision at long distances and for viewing distant images.

[0026] This invention creatively combines a dual-light structure with a nano-etched diffusion structure to achieve a synergistic effect of visual functional zoning and precise light control. In the dual-light structure, the distance vision zone 1 and near vision zone 2 are responsible for clear vision at a distance and near reading, respectively, effectively reducing the eye's accommodative burden. Meanwhile, the nano-etched diffusion structure covering the peripheral area produces specific diffusion and defocusing effects on light, helping to intervene in and counteract peripheral hyperopic defocus signals that may induce myopia progression. This allows for synergistic control of myopia through both accommodation and defocusing. Simultaneously, the lens adopts a left-right eye design, allowing parameters such as the diameter and horizontal offset of the near vision zone 2 to be personalized according to the physiological differences between the two eyes. This humanized design significantly improves the lens's wearing comfort, visual fusion effect, and overall targeted myopia control.

[0027] The above description illustrates preferred embodiments of the present invention and helps those skilled in the art to more fully understand the technical solution of the present invention. However, these embodiments are merely illustrative and should not be construed as limiting the specific implementation of the present invention to these embodiments. For those skilled in the art, several simple deductions and modifications can be made without departing from the concept of the present invention, and all such modifications should be considered to fall within the protection scope of the present invention.

Claims

1. A dual-light superimposed nanolithography myopia control lens, characterized in that, The invention includes a dual-beam optical structure and a nano-lithographic diffusion structure disposed on a lens substrate; the dual-beam optical structure includes a distance vision zone and a near vision zone, the distance vision zone being disposed in the geometric center region of the lens substrate, and the near vision zone being disposed below the distance vision zone; the nano-lithographic diffusion structure covers the surface of the lens substrate except for the distance vision zone and the near vision zone. The nano-lithographic diffusion structure includes a far-viewing region and a filling region. The far-viewing region is arranged in a ring around the periphery of the far-viewing region. The far-viewing region is a three-ring structure consisting of an inner ring, a middle ring, and an outer ring arranged sequentially from the center outwards. The outer diameter of the outer ring of the far-viewing region is tangent to the near-viewing region. The filling region covers the lens substrate surface except for the far-viewing region, the far-viewing region, and the near-viewing region. The nanolithographic diffusion structure is a nanolithographic array formed by nanolithography. The middle ring of the far-field region, the outer ring of the far-field region, and the filling region are superimposed point diffusion structures. Each nanolithographic point of the superimposed point diffusion structure includes concentric inner circular lithographic points and outer circular lithographic points.

2. The dual-light superimposed nanolithography myopia control lens according to claim 1, characterized in that, The inner ring of the far-field region has a nano-lithographic dot diameter of 0.03 mm; the middle ring of the far-field region has an inner circular lithographic dot diameter of 0.03 mm and an outer circular lithographic dot diameter of 0.08 mm; the outer ring of the far-field region has an inner circular lithographic dot diameter of 0.03 mm and an outer circular lithographic dot diameter of 0.1 mm; and the filling region has an inner circular lithographic dot diameter of 0.06 mm and an outer circular lithographic dot diameter of 0.18 mm.

3. The dual-light superimposed nanolithography myopia control lens according to claim 1, characterized in that, The diameter of the near vision zone is 12-28 mm; the power of the added light in the near vision zone is +0.50D to +3.50D.

4. The dual-light superimposed nanolithography myopia control lens according to claim 1, characterized in that, The vertical distance between the center of the near vision zone and the lower edge of the lens substrate is 5-8mm, and the vertical distance between the center of the near vision zone and the horizontal center line of the lens is 12-15mm.

5. The dual-light superimposed nanolithography myopia control lens according to claim 1, characterized in that, The lens substrate consists of two sets for the left and right eyes, with the difference in near vision zone diameter between the two sets of lenses being ≤2mm and the horizontal offset of the near vision zone being 0-1.5mm.

6. The dual-light superimposed nanolithography myopia control lens according to claim 1, characterized in that, The centers of the inner, middle, and outer rings of the far-field region coincide with the center of the far-field region.

7. The dual-light superimposed nanolithography myopia control lens according to claim 1, characterized in that, The outer diameter of the inner ring of the far-field ring is 6-9 mm, the outer diameter of the middle ring is 8-11 mm, and the outer diameter of the outer ring is 10-13 mm.

8. The dual-light superimposed nanolithography myopia control lens according to claim 1, characterized in that, The distance vision zone is circular and its center coincides with the geometric center of the lens substrate; the diameter of the distance vision zone is 5-8mm, and the refractive power range is +4.00D to -10.00D.

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