Myopia prevention and control lens with defocus effect

Abstract

The utility model provides a myopia prevention and control lens with an out-of-focus effect, which is characterized in that a plurality of first spokes radiating outwards are uniformly arranged on the peripheral part of the periphery of a first refraction part of the lens in a surrounding manner, and each first spoke is formed by arranging gradually enlarged micro lenses; the included angles between the circle centers of any two adjacent micro-lenses on each first spoke and the pupil are equal, a second spoke is further arranged between every two adjacent first spokes, and each second spoke is formed by arranging gradually-enlarged micro-lenses. The included angles between the circle centers of any two adjacent micro-lenses on each second spoke and the pupil are equal, a third spoke is further arranged between each first spoke and the corresponding second spoke which are adjacent, and two same micro-lenses are sequentially arranged on each third spoke. The included angles between the circle centers of the two micro lenses on each third spoke and the pupil are equal, so that any tiny optical deviation is avoided, and myopia development can be better controlled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to optical lens technical field, concretely relates to a myopia prevention and control lens with defocus effect. BACKGROUND

[0002] The microlens peripheral defocus lens is a lens design for effectively delaying myopia deepening, and most clinical studies find that the effective rate of controlling myopia is about 60%. The effect of the design for delaying myopia is influenced by many factors: firstly, the size of the intermediate visual zone, the smaller the visual zone, the better the control effect, but the visual field becomes smaller and the visual quality decreases, leading to poor compliance of wearing glasses; secondly, the greater the microlens diopter, the better the control effect, but the peripheral vision and visual quality decrease; many lens designs sacrifice visual quality for better control effect.

[0003] The multi-focal region of the prior art is distributed in disorder, and the arrangement scheme of the dot matrix is basically that a lens array arranged on a plane is first determined, and then two-dimensional projection is performed along a single direction to the concave side of the lens, the two-dimensional projection scheme along a single direction exists the situation that the included angle between the eye point and the midpoint of each microlens is inconsistent, and the situation can be manifested as an angle deviation of 0.5 degrees in an extreme case, which is inconsistent with the characteristics of the human eyeball, and the adjusting effect on the ciliary muscle is not ideal, and the effect of inhibiting myopia is not good. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving one of the above technical problems at least to some extent. To this end, one object of the utility model is to provide a myopia prevention and control lens with defocus effect, which is suitable for myopia prevention and control of teenagers.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The myopia prevention and control lens with defocus effect comprises a lens first refractive part as an optical center area, a plurality of first spokes are uniformly arranged around the periphery of the lens first refractive part, each first spoke is arranged by gradually increasing microlenses, each first spoke has the same number of microlenses, the included angle between the centers of any two adjacent microlenses on each first spoke and the pupil is equal, a second spoke is further arranged between two adjacent first spokes, each second spoke is arranged by gradually increasing microlenses, the included angle between the centers of any two adjacent microlenses on each second spoke and the pupil is equal, each microlens on the second spoke is staggered with the microlenses on the two adjacent first spokes, the smallest microlens on each second spoke is located at the middle position of the second and third microlenses on the two adjacent first spokes, the largest microlens on each second spoke is located at the middle position of the second-to-last and third-to-last microlenses on the two adjacent first spokes, and a third spoke is further arranged between the first spoke and the second spoke, two same microlenses are arranged on each third spoke, and the included angle between the centers of the two microlenses on each third spoke and the pupil is equal.

[0007] Further, the smallest microlens on the first spoke forms a first main ring on the first spoke, and a plurality of main rings are formed on the first spoke.

[0008] Further, the outermost microlens on each third spoke and the largest microlens on each first spoke form the outermost main ring on the first spoke, and the innermost microlens on each third spoke is located at the middle position of the first and second microlenses on the two adjacent first spokes.

[0009] Further, the part from the first main ring to the fifth main ring five rings outward is a second refractive part.

[0010] Further, the second refractive part is provided with 192 positive microlenses with diameters of 0.6-0.9mm, and the width of the second refractive part is 6.6mm.

[0011] Further, the part from the sixth main ring to the twelfth main ring seven rings outward is a third refractive part.

[0012] Further, the third dioptric part is provided with 408 high-density arranged positive power microlenses with different diameters of 0.8-1.3 mm, and the width of the third dioptric part is 8.26 mm.

[0013] Further, from the twelfth main ring to the outermost edge of the lens, a fourth dioptric part is a non-spherical normal optical correction area.

[0014] Further, the microlenses on the second dioptric part and the third dioptric part are protruded on the lens surface, and the dioptric power is +4.50D.

[0015] Further, the microlenses are all circular microlenses.

[0016] Compared with the prior art, the myopia prevention and control lens has the advantages that:

[0017] The second dioptric part and the third dioptric part of the myopia prevention and control lens with the defocus effect are composed of a first spoke, a second spoke and a third spoke in a shape of many circular microlenses, and the diameter of each row of microlenses on the first spoke and the second spoke gradually increases outward, the structure design of the myopia prevention and control lens is more in line with the eyeball characteristics, the adjustment effect on the ciliary muscle is more flexible through the design of the radial fiber form similar to the ciliary muscle of the human eye, the larger the ring and the microlens are, the more relaxed the eyeball is when looking at the near object around, the eyeball axis lengthening and the ciliary muscle tension phenomenon caused by looking at the surrounding object are further relieved, the visual fatigue is relieved, and the deepening of myopia caused by long-term use is effectively inhibited; the included angle between the centers of any two adjacent microlenses on each first spoke to the pupil is equal, the included angle between the centers of any two adjacent microlenses on each second spoke to the pupil is equal, and the included angle between the centers of the two microlenses on each third spoke to the pupil is equal, so that any slight optical deviation is avoided, and the development of myopia is better controlled; the design of the second spoke and the third spoke shape makes up for the case that the gap between the first spokes is too large to cause poor myopia inhibition effect, and makes the myopia prevention and control technology more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described in the following are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Fig. 1 It is a front structure schematic view of the present application.

[0020] Fig. 2 is a structural schematic view of the present application;

[0021] Fig. 3 is a structural schematic view of the present application, in which the included angle between the center of any two adjacent microlenses on each first spoke and the pupil is equal. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0023] Please refer to Figs. 1-3The utility model provides a myopia prevention and control lens with defocus effect, including one as optical center area's lens first diopter part a, lens first diopter part a has the optical correction area for correcting ametropia, the periphery part of lens first diopter part is evenly surrounded with a plurality of first spoke b that radiate outward, each first spoke b is gradually increased by microlens arrangement respectively, each first spoke b respectively has the same number of microlens, the included angle between the center of any two adjacent microlenses on each first spoke b to pupil is equal, two first spoke b between adjacent are also respectively equipped with a second spoke c, each second spoke c is gradually increased by microlens arrangement respectively, the included angle between the center of any two adjacent microlenses on each second spoke c to pupil is equal, each microlens on second spoke c is staggered distribution with each microlens on two first spoke b adjacent respectively, the smallest microlens on each second spoke c is located respectively in the intermediate position of the second and third microlenses on two first spoke b adjacent, the biggest microlens on each second spoke c is located respectively in the intermediate position of the penultimate and the third from the end microlenses on two first spoke b adjacent, two first spoke b and second spoke c between adjacent are also respectively equipped with a third spoke d, two same microlenses are sequentially arranged on each third spoke d respectively, the included angle between the center of two microlenses on each third spoke d to pupil is equal, in this way, the utility model is composed of many circular microlenses first spoke b, second spoke c and third spoke d shape, and the diameter of each row of microlenses on first spoke b and second spoke c is gradually larger outward, the structure design of the utility model is more in line with the eyeball characteristics, through the design similar to the radial fiber form in the ciliary muscle of human eye, the regulation effect to ciliary muscle is more flexible, the more outward, the larger the ring, the larger the microlens, the eye is more relaxed when looking around the near object, further relieve the eye axis lengthening and ciliary muscle tightness phenomenon generated when looking at the surrounding object, relieve visual fatigue, effectively inhibit the myopia deepening caused by long time, the included angle between the center of any two adjacent microlenses on each first spoke b to pupil is equal, the included angle between the center of any two adjacent microlenses on each second spoke c to pupil is equal and the included angle between the center of two microlenses on each third spoke d to pupil is equal, thereby avoid any slight optical deviation, it is convenient to better control myopia development, the design of second spoke c and third spoke d shape of the utility model makes up the situation that the inhibition myopia effect is not good caused by the too big gap between first spoke b and first spoke b, makes the myopia prevention and control technology more accurate.

[0024] In the embodiment, the first primary ring on the first spoke b is formed by the smallest microlens on each first spoke b, and several primary rings are formed on the first spoke b by spreading the first primary ring.

[0025] In the embodiment, the outermost primary ring on the first spoke b is formed by the outermost microlens on each third spoke d and the largest microlens on each first spoke b, and the innermost microlens on each third spoke d is located at the middle position of the second-to-last microlens and the second microlens on the adjacent first spoke b.

[0026] In the embodiment, the second refractive part e is from the first primary ring to the fifth primary ring five rings outward.

[0027] In the embodiment, the second refractive part e is provided with 192 microlenses with a diameter of 0.6-0.9 mm and a positive refractive power of 1.0 D, and the width of the second refractive part e is 6.6 mm. The second refractive part e is a main optical interference area for inhibiting myopia development, and has a greater effect on the macular center of the retina, which is more sensitive, and achieves greater defocus optical interference on the macular center of the retina.

[0028] In the embodiment, the third refractive part f is from the sixth primary ring to the twelfth primary ring seven rings outward, and the third refractive part f is an auxiliary optical interference area for inhibiting myopia development, and has a greater effect on the macular periphery of the retina, which is less sensitive, and achieves more comprehensive defocus coverage on the peripheral area of the retina. The third refractive part f plays a role in improving the comfort of defocus optical interference, thereby inhibiting the growth of the eye axis and delaying the development of myopia.

[0029] In the embodiment, the third refractive part g is provided with 408 microlenses with different diameters and high density arrangement, and the width of the third refractive part f is 8.26 mm.

[0030] In the embodiment, the fourth refractive part g is from the twelfth primary ring outward to the outermost edge of the lens, and the fourth refractive part g is a non-spherical normal optical correction area.

[0031] In the embodiment, the microlenses on the second refractive part and the third refractive part are in a protruding shape on the surface of the lens, and the refractive power is +4.50 D.

[0032] In the embodiment, by setting four refractive parts, two myopia prevention and control areas are main optical interference areas and auxiliary optical interference areas, and the two interference areas jointly form a larger and more comprehensive defocus optical interference coverage on the retina of the eye fundus to delay the occurrence and development of myopia.

[0033] In the embodiment, the microlenses are all circular microlenses.

[0034] Compared with the prior art, the myopia prevention and control lens with defocus effect has the following beneficial effects:

[0035] The myopia prevention and control lens with defocus effect has the following beneficial effects:

[0036] The myopia prevention and control lens with defocus effect has the following beneficial effects:

[0037] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0038] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A myopia control lens with defocus effect, characterized in that, The lens includes a first refractive portion, which serves as the optical center. A plurality of outwardly radiating first spokes are uniformly arranged around the periphery of the first refractive portion. Each first spoke is composed of progressively larger microlenses, and each first spoke has the same number of microlenses. The angle between the center of any two adjacent microlenses on each first spoke and the pupil is equal. A second spoke is also provided between each pair of adjacent first spokes. Each second spoke is composed of progressively larger microlenses, and the angle between the center of any two adjacent microlenses on each second spoke and the pupil is equal. Each of the microlenses is staggered from the microlenses on the two adjacent first spokes. The smallest microlens on each of the second spokes is located in the middle of the second and third microlenses on the two adjacent first spokes. The largest microlens on each of the second spokes is located in the middle of the second-to-last and third-to-last microlenses on the two adjacent first spokes. A third spoke is also provided between the adjacent first spokes and the second spokes. Two identical microlenses are arranged sequentially on each of the third spokes. The included angles between the centers of the two microlenses on each of the third spokes and the pupils are equal.

2. A myopia control lens with defocus effect according to claim 1, characterized in that, The smallest microlenses on the first spoke form the first main ring on the first spoke, and so on, to form several main rings on the first spoke, with the same number of microlenses on each main ring.

3. A myopia control lens with defocus effect according to claim 2, characterized in that, The outermost microlens on each of the third spokes and the largest microlens on each of the first spokes together form the outermost main ring on the first spoke. The innermost microlens on each of the third spokes are respectively located in the middle of the penultimate and second-to-last microlenses on two adjacent first spokes.

4. A myopia control lens with defocus effect according to claim 2, characterized in that, The portion from the first main ring to the fifth main ring extending five rings outward is the second refractive portion.

5. A myopia control lens with defocus effect according to claim 4, characterized in that, The second refractive section is provided with 192 positive diopter microlenses with diameters ranging from 0.6 mm to 0.9 mm, and the width of the second refractive section is 6.6 mm.

6. A myopia control lens with defocus effect according to claim 5, characterized in that, The portion from the sixth main ring to the twelfth main ring, which extends seven rings outwards, constitutes the third refractive portion.

7. A myopia control lens with defocus effect according to claim 6, characterized in that, The third refractive section is provided with 408 high-density arranged positive diopter microlenses with different diameters ranging from 0.8 mm to 1.3 mm, and the width of the third refractive section is 8.26 mm.

8. A myopia control lens with defocus effect according to claim 7, characterized in that, The fourth refractive section extends outward from the twelfth main ring to the outermost edge of the lens. The fourth refractive section is the normal optical correction area for aspherical surfaces.

9. A myopia control lens with defocus effect according to claim 6, characterized in that, The microlenses on the second and third refractive parts are protruding on the lens surface, and their refractive power is +4.50D.

10. A myopia control lens with defocus effect according to claim 1, characterized in that, All of the microlenses are circular.

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