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CN-224216964-U - Point diffusion defocusing multi-effect lens

CN224216964UCN 224216964 UCN224216964 UCN 224216964UCN-224216964-U

Abstract

The utility model discloses a point diffusion defocusing multi-effect lens, and relates to the technical field of vision prevention and control lenses. The point diffusion defocusing multi-effect lens is characterized in that a central optical area, a defocusing area and a light diffusion area are arranged, the defocusing area is arranged on the periphery of the central optical area, the light diffusion area comprises a diffusion point array to change light scattering so as to adjust contrast, the point diffusion area is matched with the defocusing area, the vision delay effect is better, meanwhile, a plurality of defocusing annular belts are arranged to construct a multi-defocusing area, the microstructure array of the defocusing area adopts a radial array arrangement, a structure with dense middle defocusing structures and sparse outer defocusing structures is formed, the structure conforms to the physiological structure of human eyes, vision obstruction is reduced, the astigmatism problem of a wearer is improved, the defocusing belts in adjacent defocusing annular belts are staggered in the circumferential direction, the interval between the defocusing belts of the adjacent defocusing annular belts is also staggered in the circumferential direction, the anisotropy of the defocusing areas is increased, vision receptor adaptation is reduced, and the tolerance phenomenon is delayed.

Inventors

  • MA YUCHEN

Assignees

  • 上海量明科技发展有限公司

Dates

Publication Date
20260508
Application Date
20250912

Claims (10)

  1. 1. A point diffusion defocusing multi-effect lens comprises a lens matrix and is characterized in that a central optical area, a defocusing area and a light diffusion area are arranged on the lens matrix, and the defocusing area is arranged on the periphery of the central optical area; the defocusing area comprises at least two defocusing annular bands which are concentrically arranged, each defocusing annular band comprises a plurality of defocusing bands which radiate outwards based on the optical center of the lens matrix, the defocusing bands are arranged at intervals, the defocusing bands in adjacent defocusing annular bands are staggered in the circumferential direction, and the intervals between the defocusing bands of the adjacent defocusing annular bands are also staggered in the circumferential direction; The light diffusion region comprises a diffusion point array composed of a plurality of diffusion points, and the diffusion points are used for changing light scattering to adjust contrast.
  2. 2. The point spread defocus multiple-effect lens of claim 1, wherein the center of the central optical zone coincides with the optical center of the lens base, and the central optical zone is formed by extending the optical center outwards to form a central visual zone with a diameter of 5-10 mm; The defocusing area is positioned in a radius area which is 3-35 mm away from the optical center, the periphery of the defocusing area is an edge area, and the edge area forms a peripheral visible area; The distance between adjacent diffusion points in the light diffusion area is 0.2-0.6 mm, the diameter range of each diffusion point is 0.1-0.5 mm, and the depth of each diffusion point is 0.1-0.8 mm.
  3. 3. The point-diffusing, defocusing, multi-effect lens of claim 1, wherein the light diffusion region and the defocusing region are overlapped, the area of the light diffusion region is larger than that of the defocusing region, or the light diffusion region is positioned at one side of the defocusing region and partially overlapped with the defocusing region, and the area of the light diffusion region accounts for 30% -70% of the area of the lens matrix.
  4. 4. The point-diffusing, defocus multiple-effect lens of claim 1 wherein said light diffusing zone comprises a first array of diffusing points and a second array of diffusing points, The first diffusion point array is a plurality of point diffusion zones which radiate outwards based on the optical center of the lens matrix, and the point diffusion zones and the defocusing zones of the defocusing zone are alternately arranged at intervals; the second array of diffusion points is a ring of point diffusion zones disposed around the outside of the defocus region.
  5. 5. The point-diffusing, defocus multiple-effect lens of claim 4 wherein said light diffusing zone comprises a third array of diffusing points which is an intermediate point diffusing zone disposed inboard of the defocus zone; The intermediate point diffusing zone is fully covered on the central optical zone or is positioned at the edge of the central optical zone to form an inner point diffusing zone.
  6. 6. The point spread defocus multiple effect lens of any one of claims 1-5, wherein the spacing between the defocus zones of adjacent defocus zones is partially staggered in the circumferential direction such that the spacing of adjacent defocus zones is in radial communication; Or the intervals between the defocus zones of the adjacent defocus zones are completely staggered in the circumferential direction so that the intervals of the adjacent defocus zones are not communicated in the radial direction.
  7. 7. The point-diffusion defocusing multi-effect lens according to claim 6, wherein one defocusing annular belt is composed of a plurality of circles of concentric rings, each circle of concentric rings is provided with a plurality of microlenses, adjacent concentric rings are adjacently arranged or are arranged at intervals, and the defocusing degree of the microlenses on the same concentric ring is the same; The micro lenses positioned in the same circle of concentric rings and belonging to the same defocusing band are adjacent at intervals, the extension lines of the radial center lines of the defocusing bands pass through the optical center of the lens matrix, and the width of each defocusing band is increased outwards from the minimum radius according to a preset width adjustment rule, so that the extension lines of the radial edge lines of the defocusing bands pass through the optical center of the lens matrix.
  8. 8. The point spread defocus multiple effect lens of claim 7 wherein for each defocus zone the defocus amount of the microlens on adjacent defocus zones is different to form a high defocus zone and a low defocus zone which are alternately arranged on defocus zones; The defocus values of the microlenses on each defocus belt are the same, or the defocus values of the microlenses on each defocus belt gradually change from the minimum radius to the outside according to a preset defocus adjustment rule.
  9. 9. The point spread out-focus multiple effect lens of claim 8 wherein the number of out-of-focus zones is 2, comprising a first out-of-focus zone and a second out-of-focus zone, the first out-of-focus zone being located at the periphery of the central optical zone, the second out-of-focus zone being located at the periphery of the first out-of-focus zone; The first defocusing ring belt and the second defocusing ring belt have the same number of defocusing belts, and the same number of microlenses are arranged in each defocusing belt belonging to the same defocusing ring belt according to the same arrangement rule; the defocus addition degree of the micro lenses of the high defocus zone and the low defocus zone of the first defocus zone is respectively the first defocus addition degree and the second defocus addition degree, the diameter range of the micro lenses is 0.50-2.00 mm, the value range of the first defocus addition degree is +1.50D to +7.50D, and the value range of the second defocus addition degree is +1.00D to +6.00D; The defocus additional degree of the micro lenses of the high defocus zone and the low defocus zone of the second defocus zone is respectively a third defocus additional degree and a fourth defocus additional degree, the diameter range of the micro lenses is 0.50 mm-2.00 mm, the value range of the third defocus additional degree is +2.00D to +8.00D, and the value range of the fourth defocus additional degree is +1.45D to +6.50D.
  10. 10. The point spread defocus multiple effect lens of claim 8 wherein the first defocus zone and the second defocus zone are 14 defocus zones and wherein the first defocus zone and the second defocus zone comprise 19 concentric rings; the first defocused annular belt comprises 9 concentric rings, 22 micro lenses are arranged on each defocused belt, the number of micro lenses on the 1 st round to the 9 th round of concentric rings of the defocused belt is 1, 2, 3 and 3 respectively, and the corresponding lens diameters are 1.43mm, 0.80mm, 0.96mm, 1.17mm, 0.8mm, 0.95mm, 1.07mm, 1.22mm and 1.37mm respectively; The second defocusing annular belt comprises 10 concentric rings, 50 micro lenses are arranged on each defocusing belt, the number of the micro lenses on the concentric rings from the 1 st circle to the 10 th circle of the defocusing belt is 5, and the corresponding lens diameters are respectively 0.82mm, 0.89mm, 0.96mm, 1.03mm, 1.11mm, 1.20mm, 1.28mm, 1.37mm, 1.47mm and 1.58mm; According to the grades of the myopia degrees of the users, the defocus additional degrees of the microlenses with high defocus zones and low defocus zones of the first defocus annular zone are respectively +3.0D to +4.5D and +1.5D to +3.5D, and the defocus additional degrees of the microlenses with high defocus zones and low defocus zones of the second defocus annular zone are respectively +3.5D to +6.0D and +2.0D to +4.5D, and the higher the grade of the myopia degree is, the larger the defocus additional degree is.

Description

Point diffusion defocusing multi-effect lens Technical Field The utility model relates to the technical field of vision prevention and control lenses, in particular to a point diffusion defocusing multi-effect lens. Background It has been found that the visual signal dependent mechanisms of refractive development come from the eye and that the primary visual signals affecting the orthotopic process in the eye include contrast and optical defocus, which are collected into a common channel after passing through the retina, i.e. transmitted through retinal pigment epithelial cells, where they alter the choroidal thickness, ultimately affecting refractive index changes. Specifically, the optical defocus can affect the orthographic process by affecting the position of the retinal image, and the contrast can adjust the contrast of the overall image to affect the orthographic process. The orthographic visualization process is a process of myopia control, in other words, the general factors causing myopia include the contrast of imaging of things in addition to the distance of looking at things (optical defocus). Especially, in daily life, minors frequently contact with high-brightness, high-contrast and bright-colored electronic screens, whether viewing projection screens and electronic display screens in classrooms or various electronic signboards, billboards and information signs in outdoor environments, the high-contrast light sources cause stronger stimulus to the eye balls, and increase of the eye axes is promoted, so that the myopia is accelerated. In addition, in outdoor sunny weather, strong sunlight can enter through the upper part of the eyeball, and potential threat is formed to the retina. Based on the above findings, the prior art provides lenses with vision prevention and control effects, which mainly comprises two main categories, namely, one category adopts a defocus principle, a positive visualization process is influenced by influencing the imaging position of retina, the other category adopts a contrast principle, the positive visualization process is influenced by adjusting the contrast of the whole image, and for example, a point diffusion lens is a lens adopting the contrast principle. Considering the comprehensiveness of myopia prevention and control effects, the prior art also provides a scheme of performing double inhibition by using a defocus principle and a contrast principle, for example, chinese patent application CN202410262425.3 discloses a film close-fitting vision control lens and a frame lens, wherein the film close-fitting vision control lens comprises a lens, a film is attached to the lens, the film has multiple types, the film has different defocus amounts, the defocus amount on each film has irregular variation in the radial direction and/or the angular direction, the film comprises a central optical zone, a plurality of annular point diffusion zones are arranged outside the central optical zone, each point diffusion zone is composed of a plurality of densely distributed diffusion points for reducing contrast and brightness, and a plurality of defocus zones which are alternately distributed with the diffusion points are arranged in each point diffusion zone. The above scheme can adjust the optical defocus visual signal through the defocus microstructure and also can change the visual signal of contrast to influence the orthographic visualization process. The point diffusion area is matched with the defocusing area, so that the vision delay effect is better. However, the defocusing area of the conventional point diffusion region defocusing composite lens generally adopts a single structure, the arrangement of the single defocusing area causes the problem of interference astigmatism after being worn for a long time, and the adjusting effect of the conventional defocusing frame lens is weakened along with the extension of the wearing time, namely a tolerance phenomenon occurs, so that the myopia control effect is reduced. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provides a point diffusion defocusing multi-effect lens. The point diffusion defocusing multi-effect lens provided by the utility model is characterized in that a central optical area, a defocusing area and a light diffusion area are arranged on a lens substrate, the defocusing area is arranged on the periphery of the central optical area, the light diffusion area comprises a diffusion point array formed by a plurality of diffusion points to change light scattering so as to adjust contrast, the point diffusion area is matched with the defocusing area, the vision delay effect is better, meanwhile, a plurality of defocusing annular belts are arranged to construct a multi-defocusing area, the microstructure array of the defocusing area adopts radial linear array arrangement, a structure with a dense middle defocusing structure and a sparse structure beyond the outer defo