Eyeglass lens

Abstract

The present invention discloses a spectacle lens, comprising a plurality of first units that focus an image at a position other than the retina of the eye to inhibit the development of refractive error of the eye. The first units have a first diopter, and further comprising: a second unit that deviates light from a straight-line propagation; the plurality of first units are connected by the second unit; a plurality of third units for correcting myopia, the third units being formed in a region other than the regions formed as the first units and the second unit; the second unit and the third unit have diopters different from the first diopter, and after the light passing through the second unit and the third unit acts on the retina, a phase difference is formed. The present invention has the advantage of inhibiting the development of myopia.

Description

Technical Field

[0001] The present invention relates to a spectacle lens. Background Art

[0002] Frame glasses adopt single - vision concave lenses, bifocal concave lenses and progressive multifocal lenses, and peripheral defocus frame spectacle lenses control the deepening of myopia. A lens and glasses capable of controlling the growth of myopia degree disclosed in CN208921990U, the lens includes an upper lens and a lower lens, the diopter of the upper lens is higher than that of the lower lens, the upper lens and the lower lens are connected by their respective connecting surfaces, and the adjacent side surfaces of the upper lens and the lower lens are respectively connected as smooth curved surfaces. Such lenses and glasses can control the too - fast growth of myopia degree.

[0003] A special glasses for controlling myopia and reducing degree disclosed in CN202339453U, including a frame and a lens, the lens is fixed on the frame, the lens is designed based on the principle of multiple foci, with a compact structure and multiple functions, mainly suitable for teenagers to wear, can eliminate visual fatigue, effectively control the development of true myopia, improve eyesight, restore early myopia, and treat moderate and low - degree myopia; different optical foci in the progressive area of the lens can stimulate the visual cells of the human eye, and have a significant effect on amblyopia in young children by exercising the visual function. Experimental demonstration shows that the control of myopia by single - vision concave lenses, bifocal concave lenses and progressive multifocal lenses is very limited.

[0004] A spectacle lens disclosed in CN104678572A, which includes a first refractive region having a first refractive power based on a prescription for correcting the refractive error of an eye; and a second refractive region having a refractive power different from the first refractive power and having a function of focusing an image on a position other than the retina of the eye to suppress the development of the refractive error of the eye. Near the central part of the lens, the second refractive region is formed as a plurality of independent island - shaped regions, and the first refractive region is formed as a region other than the region formed as the second refractive region.

[0005] When a patient uses the spectacle lens in the above-mentioned CN104678572A, while visually distinguishing the image of an object formed by the first refractive power, the development of myopia is inhibited by the image obtained in front of the retina by the refractive power other than the first refractive power. However, since the second refractive region of the above spectacle lens is formed into a plurality of independent island-shaped regions, all the light passing through the first refractive region will act on the patient's retina intensively at the same time. Therefore, although this spectacle lens theoretically inhibits the development of myopia through the second refractive region, in fact, it cannot reduce the stimulation and glare of the light passing through the first refractive region to the eyes, resulting in eye fatigue (glare and eye fatigue are the main factors leading to myopia). Therefore, it still cannot effectively inhibit the development of myopia. Summary of the Invention

[0006] The present invention provides a spectacle lens that improves the effect of inhibiting the development of myopia.

[0007] The technical solution for solving the above technical problems is as follows:

[0008] A spectacle lens includes a plurality of first units that focus an image at a position other than the retina of the eye to inhibit the development of refractive error of the eye. The first unit has a first diopter, and further includes:

[0009] A second unit that deviates light from straight-line propagation, and a plurality of first units are connected by the second unit;

[0010] A plurality of third units for correcting myopia, and the third unit is formed in a region other than the region formed as the first unit and the second unit;

[0011] The second unit and the third unit have diopters different from the first diopter, and the light passing through the second unit and the third unit forms a phase difference after acting on the retina.

[0012] The advantages of the present invention are as follows: In the present invention, by using the second unit that connects a plurality of first units, when the light emitted from the same light source passes through the second unit and the third unit respectively, the second unit has a greater obstructive effect on the light compared to the third unit. Therefore, the light passing through the second unit and the light passing through the third unit have an optical path difference, and then the time to reach the retina is different, thereby forming the phase difference. Through the phase difference, the light is prevented from acting on the retina intensively at the same time, the stimulation to the eyes can be reduced, the eye fatigue and glare can be reduced, and this structure decomposes the various parts of the object into images, which can improve the sharpness, contour, and clarity of the image.

[0013] In the present invention, the first unit is connected by the second unit, making each first unit a non-independent island-shaped area. The second unit is similar to an island chain. After adjacent first units are connected by the island chain, each first unit is arranged at intervals on multiple rings to form multiple suppression layers. The third unit within each ring is enclosed. When light passes through the second unit and the third unit other than the first unit, the phase difference formed by the cooperation of the second unit and the third unit reduces the glare and irritation generated by the light to the eyes, reducing the fatigue of the patient's eyes. Therefore, through the cooperation of the second unit and the third unit, while correcting myopia, it also plays a role in suppressing the occurrence of myopia, that is, the spectacle lens of the present invention improves the effect of suppressing the development of myopia. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of Embodiment 1 of the spectacle lens of the present invention;

[0015] Figure 2 It is a three-dimensional view of the first unit in the present invention;

[0016] Figure 3 It is a three-dimensional view of the second unit in the present invention;

[0017] Figure 4 It is a top view of Embodiment 2 of the spectacle lens of the present invention;

[0018] Figure 5 It is Figure 4 Based on this, it adds a schematic diagram showing the rings where the centers of the first units in each suppression layer are located;

[0019] Marks in the drawings:

[0020] A is the outermost suppression layer;

[0021] B is the innermost suppression layer;

[0022] C is the middle suppression layer;

[0023] 1 is the spectacle lens;

[0024] 10 is the first unit;

[0025] 20 is the second unit;

[0026] 30 is the third unit. DETAILED DESCRIPTION OF THE INVENTION

[0027] Embodiment 1

[0028] As Figure 1The spectacle lens 1 shown is a concave lens having an object-side surface and an eye-side surface, wherein the object-side surface is formed as a convex curved surface facing the object side, and the eye-side surface is formed as a concave surface having a curvature greater than that of the object-side surface. The spectacle lens 1 has a first unit 10 that focuses an image at a position other than the retina of the eye to suppress the development of refractive errors of the eye, a second unit 20 that deflects light from a straight-line propagation, and a plurality of third units 30 that correct myopia. The following will detail each part and the relationship between the parts:

[0029] As Figure 1 shown, the first unit 10 is made of a material that focuses an image at a point in front of the retina of the eye, and the second unit 20 and the third unit 30 have the function of focusing an image on the retina of the eye. Therefore, when a patient uses the spectacle lens 1 to suppress the development of myopia to view an object, an image of the object is formed on the retina, and at the same time, an image is formed in front of the retina. The spectacle lens 1 of the present invention has the following effect: while visually distinguishing the image of the object formed by the second unit 20 and the third unit 30, the development of myopia is suppressed by the image obtained in front of the retina by the first unit 10 other than the third unit 30.

[0030] As Figure 1 , a plurality of first units 10 are connected by the second unit 20, and the third unit 30 is formed in a region other than the region formed as the first unit 10 and the second unit 20; the second unit 20 and the third unit 30 have a diopter different from the first diopter, and a phase difference is formed after the light passing through the second unit 20 and the third unit 30 acts on the retina. In the present invention, preferably, both the first unit 10 and the second unit 20 protrude from the third unit 30, and the second unit 20 and the third unit 30 have different diopters.

[0031] Since the forward speed of light is constant (within a certain range), it has a fixed phase when reaching any point, and the phase difference between different light waves at the meeting point is the phase difference. In the present invention, by using the second unit 20 connecting multiple first units 10, when the light emitted by the same light source passes through the second unit 20 and the third unit 30 respectively, the second unit 20 has a greater obstructive effect on the light compared to the third unit 30. Therefore, an optical path difference is generated between the light passing through the second unit 20 and the light passing through the third unit 30, and then the time to reach the retina is different, thereby forming the phase difference. Through the phase difference, the light is prevented from acting on the retina intensively at the same time, which can reduce the stimulation to the eyes, reduce eye fatigue and reduce glare. And this structure decomposes and images each part of the object, which can improve the sharpness, contour and clarity of the image. Thus, through the cooperation of the second unit 20 and the third unit 30, while correcting myopia, it also plays a role in inhibiting the occurrence of myopia. Therefore, in the present invention, the inhibition of the development of myopia is mainly completed by the first unit 10, but at the same time, it is also completed by the structure formed by the combination of the second unit 20 and the third unit 30.

[0032] As Figure 1 , the multiple first units 10 are respectively arranged at intervals on multiple rings to form multiple inhibition layers. Any two adjacent first units 10 on each inhibition layer are connected by the second unit 20. The rings can be regular rings or irregular rings. Regular rings can be circular, regular polygons, etc., and irregular rings can be any irregular shapes. In this embodiment, the rings for arranging the first units preferably adopt irregular rings, and the multiple irregular rings are arranged from the inside to the outside or from the outside to the inside.

[0033] As Figure 1 、 Figure 2 , along the longitudinal direction of the spectacle lens 1, the projection formed on the surface of the first unit 10 is circular. Preferably, the first unit 10 is integrally hemispherical, and the surface area of each first unit 10 is 0.50 mm 2 to 3.14 mm 2 . The longitudinal direction in the present invention is: the straight-line extension direction from the object-side surface of the spectacle lens 1 to the eye-side surface, or the straight-line extension direction from the eye-side surface of the spectacle lens 1 to the object-side surface.

[0034] As Figure 1 、 Figure 3 , along the longitudinal direction of the spectacle lens 1, the projection formed on the surface of the second unit 20 is rectangular. Along the longitudinal direction of the spectacle lens 1, the cross-section formed by the second unit 20 is rectangular or arched. Preferably, along the longitudinal direction of the spectacle lens 1, the cross-section formed by the second unit 20 is arched. The area of each second unit 20 is 2-10% of the area of each first unit 10. The thickness of the second unit 20 is less than or equal to the thickness of the first unit 10.

[0035] As Figure 1 , the ratio of the total area of the third unit 30 to the total areas of the first unit 10, the second unit 20, and the third unit 20 is 40% to 50%. Therefore, while ensuring the function of suppressing the development of myopia, sufficient visibility can be maintained and a good wearing feeling can be obtained.

[0036] Example 2

[0037] As Figure 4 and Figure 5 , the plurality of first units 10 are respectively arranged at intervals on a plurality of rings having the same center to form an outermost suppression layer A, an innermost suppression layer B, and at least one intermediate suppression layer C, and these intermediate suppression layers C are located between the outermost suppression layer A and the innermost suppression layer B. The centers of each of the first units 10 in each layer of the suppression layer are located on the same ring, that is, the centers of each of the first units 10 in the outermost suppression layer A are located on the outermost ring, the centers of each of the first units 10 in the innermost suppression layer B are located on the innermost ring, and the centers of each of the first units 10 in the intermediate suppression layer C are located on the ring of this intermediate layer. In the present invention, the number of the intermediate suppression layers C is preferably three layers.

[0038] As Figure 4 and Figure 5 , each of the rings is a hexagonal ring, the hexagonal ring is a non-regular hexagon, and the center of the first unit 10 is placed on the polygonal ring, which is beneficial to arranging more first units 10 and having more connecting lines, so that the function of suppressing myopia of the spectacle lens 1 can be fully exerted. At the same time, it also makes the arrangement of the first units 10 easier.

[0039] As Figure 4 and Figure 5 , two adjacent first units 10 in the outermost suppression layer A and the innermost suppression layer B are both connected by the second unit 20. Thus, both the outermost suppression layer A and the innermost suppression layer B surrounded by the first unit 10 and the second unit 20 are enclosed spaces. Thereby, the area of the third unit 30 surrounded by the innermost suppression layer B and the plurality of second units 20 connecting the first unit 10 of the innermost suppression layer B is 28 - 227 mm 2 , and this is the largest among the areas of all the third units 30. The area of this 28 - 227 mm 2 is located in the central region of the spectacle lens 1.

[0040] Only a part of two adjacent first units 10 in each intermediate inhibition layer C are connected by a second unit 20. Any one of the first units 10 in each intermediate inhibition layer C is connected to the first unit 10 in the adjacent outermost inhibition layer A and / or the innermost inhibition layer B and / or another intermediate inhibition layer C by a second unit 20. Such a structure enables the formed third units 30 to have different shapes (such as Figure 1 and Figure 2 shown), which is beneficial to ensuring the inhibitory effects generated by the second unit 20 and the third unit 30 while reducing the area occupied by the second unit 20 in the third unit 30, thereby ensuring the correction of vision.

Claims

1. An eyeglass lens, comprising a plurality of first units (10) that focus an image at a position other than the retina of an eye to suppress the development of refractive errors of the eye, the first unit (10) having a first diopter, characterized in that, Further included are: A second unit (20) that deflects light from traveling in a straight line, with a plurality of first units (10) connected by the second unit (20); A plurality of third units (30) for correcting myopia, where the third units (30) are formed in areas other than those formed as the first unit (10) and the second unit (20); The second unit (20) and the third unit (30) have diopter powers different from the first diopter power, and after the light passing through the second unit (20) and the third unit (30) acts on the retina, a phase difference is formed; By using the second unit (20) that connects a plurality of first units (10), when the light rays emitted from the same light source pass through the second unit (20) and the third unit (30) respectively, the second unit (20) has a greater obstructive effect on the light rays compared to the third unit (30). An optical path difference is generated between the light passing through the second unit (20) and the light passing through the third unit (30), and thus the arrival times at the retina are different, thereby forming the phase difference.

2. The spectacle lens according to claim 1, characterized in that, The plurality of first units (10) are respectively arranged at intervals on a plurality of rings to form a plurality of suppression layers.

3. The spectacle lens according to claim 2, wherein, Any two adjacent first units (10) on each suppression layer are connected by the second unit (20).

4. The spectacle lens according to claim 2, characterized in that, The plurality of suppression layers include an outermost suppression layer (A), an innermost suppression layer (B), and at least one intermediate suppression layer (C) arranged on a plurality of rings having the same center, and these intermediate suppression layers (C) are located between the outermost suppression layer (A) and the innermost suppression layer (B).

5. The spectacle lens according to claim 4, characterized in that, Any two adjacent first units (10) in the outermost suppression layer (A) and the innermost suppression layer (B) are connected by the second unit (20); In each intermediate suppression layer (C), only a part of two adjacent first units (10) are connected by the second unit (20), and any one first unit (10) in each intermediate suppression layer (C) is connected by the second unit (20) to the first unit (10) in the adjacent outermost suppression layer (A) and / or innermost suppression layer (B) and / or another intermediate suppression layer (C).

6. The spectacle lens according to claim 4, characterized in that, The area of the third unit (30) surrounded by the innermost inhibition layer (B) and a plurality of second units (20) connecting the innermost inhibition layer (B) and the first unit (10) is 28 - 227 mm 2 .

7. The spectacle lens according to any one of claims 1 to 6, characterized in that, The projection formed on the surface of the second unit (20) is rectangular along the longitudinal direction of the spectacle lens (1).

8. The spectacle lens according to any one of claims 1 to 6, characterized in that, The cross-section formed by the second unit along the longitudinal direction of the spectacle lens (1) is rectangular or arcuate.

9. The spectacle lens according to any one of claims 1 to 6, characterized in that, The area of each second unit (20) is 2 - 10% of the area of each first unit (10).

10. The spectacle lens according to any one of claims 1 to 4, characterized in that, The thickness of the second unit (20) is less than or equal to the thickness of the first unit (10).

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