Microlens peripheral defocus eyeglasses

Abstract

Microlens peripheral defocus eyeglasses belong to the technical field of eyeglasses. The eyeglasses of the present invention are arranged as a central correction area, a nasal microlens area, a temporal microlens area, and a lower microlens area. The nasal microlens area and the temporal microlens area are each provided with two gradient microlens areas with different refractive powers and a full-quantity microlens area. Or the eyeglasses are arranged as a central correction area and an annular microlens area. The annular microlens area is provided with two gradient annular microlens areas with different refractive powers and a full-quantity annular microlens area, or the lower area of ​​the annular microlens area is provided with an annular lower microlens area. The microlens area is composed of a plurality of independent microlens arrays, and at least two or more microlenses in the microlens array area have different refractive powers, shapes, and diameter lengths. The independent microlens is arranged as a convex lens relative to the central correction area, with a diameter length of 0.2 mm to 4.5 mm, and a distance between two adjacent microlenses of 0.1 mm to 0.4 mm.

Description

Technical Field

[0001] The invention belongs to the technical field of glasses, and in particular provides a microlens spectacle lens for correcting myopic defocus of the central retina of a myopic eye and correcting hyperopic defocus of the peripheral retina of a myopic eye at the nasal and temporal sides. Background Art

[0002] Myopia is a global social problem and medical problem. Peripheral hyperopic defocus of the retina is the core mechanism of myopia, and peripheral defocus lenses are the mainstream corrective lenses. A Chinese patent discloses a microlens lens that uses a microlens array to form a peripheral area of ​​the lens to correct myopia peripheral hyperopic defocus of the retina.

[0003] Hoya Lenses Thailand Co., Ltd. has disclosed a patent named "eyeglass lenses". The patent uses a microlens array to form a peripheral 360° area to correct the hyperopic defocus of the peripheral retina of myopic eyes. The application date is November 29, 2013, the patent number is 2013106281748, and the patented product name is New Lexue Eyeglass Lenses.

[0004] Huaboen Vision Research Center Co., Ltd. disclosed a patent named "Device, system and / or method for myopia control". The patent uses a micro-lens array to correct the hyperopic defocus of the peripheral retina of myopic eyes. The application date is October 25, 2017, and the patent application number is 2017800806128.

[0005] Zhao Peitao disclosed a patent named "Vision control lenses and glasses based on peripheral microlenses". The patent uses defocus microlenses on the 360° peripheral light zone to correct the hyperopic defocus of the peripheral retina of myopic eyes. The application date is August 20, 2018, and the patent application number is 2018109459444.

[0006] Aier Eye Hospital Group Co., Ltd. has disclosed a patent named "A kind of eyeglass lens". The patent uses microlenses to correct myopic defocus in the peripheral retina of hyperopic eyes. The application date is September 27, 2018, and the patent number is 201821588173X.

[0007] Wenzhou Medical University has disclosed a patent named "A flexible refractive film patch with a microstructure". The patent uses a microlens flexible refractive film patch and sticks it on the frame lens to correct the hyperopic defocus of the retinal periphery of myopia. The application date is January 14, 2019, and the patent application number is 201910030136X.

[0008] Essilor International NV has disclosed a patent named "Lens Element", which describes an eyeglass element composed of a microlens array to correct hyperopic defocus in the peripheral retina of myopic eyes. The application date is March 1, 2019, and the patent application number is 2019101554093.

[0009] Zhen Yi disclosed a patent named "Spectacle lenses, corneal contact lenses and lens films that can effectively alleviate the worsening of myopia". The patent uses 3D printed peripheral defocus correction areas to correct the peripheral hyperopic defocus of the retina of myopic eyes. The application date is May 28, 2019, and the patent application number is 2019104517397.

[0010] The above patented design utilizes a microlens array to form a peripheral correction area to correct hyperopic defocus in the peripheral retina. There is no transition zone between the central correction area and the peripheral correction area, resulting in an obvious refractive power jump phenomenon and poor wearing compliance.

[0011] Another defect of the above patent design is that it does not take into account near vision accommodation and convergence dysfunction. The hyperopic defocus of the nasotemporal retinal periphery of myopic eyes is asymmetric, with the temporal side being larger than the nasal side, and the defocus difference of some myopic eyes is greater than +1.00D. Existing peripheral defocus lenses, which use peripheral annular defocus and equal correction, cannot eliminate or reduce the hyperopic defocus difference of the nasotemporal retinal periphery, and also produce new hyperopic refractive anisometropia of the nasotemporal retinal periphery.

[0012] The inventors also found that the hyperopic defocus difference of the retinal periphery of the myopic teenagers increases with the increase of myopia. The hyperopic defocus difference of the retinal periphery of the nasal temporal side can be corrected by using asymmetric defocus correction of the peripheral defocus spectacle lenses.

[0013] Myopia prevention and control glasses remain one of the technical challenges in the field of ophthalmology and eyewear. Summary of the invention

[0014] The invention aims to provide a microlens peripheral defocus spectacle lens for correcting the central myopic defocus of the retina of myopia and the asymmetric hyperopic defocus of the retina of the nasal and temporal sides of the myopia.

[0015] The purpose of the present invention is achieved through the following technical solutions:

[0016] Microlens peripheral defocused spectacle lenses are frame spectacle lenses, hereinafter referred to as such spectacle lenses.

[0017] This eyeglass lens is provided with a central correction area, a nasal microlens area, a temporal microlens area, and a lower microlens area. The nasal microlens area and the temporal microlens area are each provided with two gradient microlens areas with different refractive powers and a full microlens area.

[0018] Alternatively, the spectacle lens is provided with a central correction zone and an annular microlens zone, the annular microlens zone is provided with two gradient annular microlens zones with different refractive powers and a full annular microlens zone, or the lower area of ​​the annular microlens zone is provided with an annular lower microlens zone.

[0019] The microlens area is composed of a plurality of independent microlens arrays. At least in the microlens array area, there are two or more microlenses with different refractive powers, shapes, and radial lengths. The independent microlenses are arranged as convex lenses relative to the central correction area, with a radial length of 0.2 mm to 4.5 mm, and a distance between two adjacent microlenses of 0.1 mm to 0.4 mm.

[0020] Alternatively, the independent microlenses are arranged at nanometer level, and the diameter length is 10nm to 100nm.

[0021] The central correction zone corrects the myopic defocus of the central retina of the myopic eye, the nasal lenticular zone and the temporal lenticular zone correct the hyperopic defocus of the temporal and nasal retinal periphery of the myopic eye respectively, the gradient lenticular zone and the gradient annular lenticular zone correct the low-refractive-power hyperopic defocus of the retina periphery near the optical center axis of the myopic eye, the full-quantity lenticular zone and the full-quantity annular lenticular zone correct the high-refractive-power hyperopic defocus of the retina periphery far from the optical center axis of the myopic eye, the inferior lenticular zone and the annular inferior lenticular zone correct the accommodation and convergence dysfunction of the myopic eye.

[0022] The nasal microlens area and the temporal microlens area are provided with the same or different numbers of microlenses, at least 80 or more independent microlenses are provided on each side, and the independent microlenses are provided in a perfect circle, ellipse or hexagonal shape, and the diameter length of the independent microlenses is preferably selected to be 0.8mm to 2.0mm.

[0023] The central correction area is set to be an upper and lower window type, with a horizontal diameter length of 4mm to 8mm along the half side of the optical center, the gradient microlens area is 4mm to 8mm from the optical center, and the horizontal diameter length is 4mm to 6mm, the horizontal diameter length of the full microlens area is 8mm to 16mm, or it is set to the edge of the lens, at least the full microlens area is set 20mm away from the optical center.

[0024] The nasal microlens area has a greater refractive power than the temporal microlens area, the full microlens area has a greater refractive power than the gradient microlens area, the gradient microlens area gradually increases to the full microlens area refractive power according to the gradient of +0.25D to +0.75D based on the refractive power of the central correction area, the lower microlens area is set to a positive addition value relative to the refractive power of the central correction area, or is set to a prism lens with a composite base facing the nasal side.

[0025] The central correction zone is set to have a refractive power of 0.00D to -8.00D, the nasal lenticule zone and the temporal lenticule zone are set to have a refractive power of +0.50D to +5.00D relative to the central correction zone, and the nasal lenticule zone is larger than the temporal lenticule zone in terms of refractive power of +0.50D to +2.00D.

[0026] The nasal lenticule area and the temporal lenticule area are set to a vertical ellipse, a perfect circle, a horizontal ellipse, an ellipse with a radius line on one side longer than the radius line on the other side, a fan ring, or an arc top shape, and the inner and outer circumferential azimuths are set to 60° to 180°.

[0027] The lower microlens area is set to a horizontal ellipse, a vertical ellipse, a perfect circle, an arc top shape, a linear shape, and is set to a plurality of microlenses with equal refractive power, or is set to a spherical or aspherical lens with uniform refractive power.

[0028] The lower microlens area is set to have a refractive power of +0.50D to +3.00D relative to the central correction area, or is set to a prism lens with a composite base facing the nose and a prism power of 0.5Δ to 6.0Δ.

[0029] The central correction area of ​​the eyeglass lens is arranged in a perfect circle or an ellipse, the area surrounding the central correction area is an annular microlens area, the area near the optical center axis is a gradient annular microlens area, the area away from the optical center axis is a full-scale annular microlens area, the lower annular microlens area is arranged in a semi-circular shape, the refractive power is a positive addition value relative to the refractive power of the central correction area, or is arranged as a prism lens with a composite base facing the nose side.

[0030] The lens is configured as a unilateral refractive lens surface or a bilateral refractive lens surface, wherein the unilateral refractive lens surface refers to a central correction area, a nasal microlens area, a temporal microlens area and a lower microlens area, which are injection molded or processed in a CNC lathe on one side of the lens.

[0031] Bilateral refractive lens means that the nasal microlens area, the temporal microlens area and the lower microlens area are injection molded on the outer lens surface of the lens, and the central correction area is set on the inner lens surface of the lens, and the inner lens surface is processed by the lens CNC lathe. This kind of lens can also be obtained by 3D printing.

[0032] Or this kind of eyeglass lens is selected from soft transparent plastic polymer materials, and is prepared by centrifugal casting, cutting and grinding, and direct molding to prepare a flexible transparent refractive eyeglass lens with a thickness of 0.5mm to 2.0mm and provided with an outer refractive surface and an inner bonding surface. The outer refractive surface is provided with a central correction area, a nasal microlens area, a temporal microlens area, and a lower microlens area. The inner bonding surface is a flat and flat bonding lens, which is pasted on an optical glass or resin frame eyeglass lens. The eyeglass lens is assembled on a single-layer frame eyeglass frame, or a 0.00DS eyeglass lens with a central correction area is assembled on a double-layer additional frame eyeglass frame.

[0033] The beneficial effects of the present invention compared with the prior art are:

[0034] 1. The microlens eyeglass is composed of a plurality of independent microlens arrays. In the microlens array area of ​​the nasal microlens area and the temporal microlens area of ​​the present invention, two or more microlenses have different refractive powers, shapes, and diameter lengths. The independent microlenses are arranged in millimeter, micrometer, and nanometer levels, thereby ensuring a complex free-form surface and low astigmatism.

[0035] 2. A major technical difficulty of defocus lenses is to increase the refractive power of the relative convex lenses on the nasal and temporal sides to form a larger myopic defocus amount, thereby effectively delaying the increase of myopia. However, the greater the refractive power of the relative convex lens, the greater the degree of astigmatism. Microlens lenses are composed of multiple independent microlens arrays to avoid the generation of astigmatism.

[0036] 3. The present invention provides a peripheral defocused microlens eyeglass lens with relatively large convex lens refractive power on the nasal and temporal sides, low astigmatism, excellent quality, and high wearing compliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of a vertical elliptical eyeglass lens arranged in the nasal temporal microlens area;

[0038] Figure 2 2. It is a schematic diagram of the structure of a convex lens in which a convex lens is arranged in the lower microlens area;

[0039] Figure 3 1. It is a schematic diagram of the structure of a composite prism eyeglass lens provided in the lower microlens area;

[0040] Figure 4 It is a schematic diagram of the structure of a perfect circular spectacle lens arranged in the nasal temporal microlens area;

[0041] Figure 5 It is a schematic diagram of the structure of a transverse elliptical spectacle lens arranged in the nasal temporal microlens area;

[0042] Figure 6 It is a schematic diagram of the structure of an elliptical eyeglass lens in which a half-side diameter of the nasal temporal microlens area is longer than the other half-side diameter;

[0043] Figure 7 It is a schematic diagram of the structure of a fan-shaped ring eyeglass lens provided in the nasal temporal microlens area;

[0044] Figure 8 It is a schematic diagram of the structure of a dome-shaped spectacle lens provided in the nasal temporal microlens area;

[0045] Fig. 9 It is a structural schematic diagram of a spectacle lens in which a ring-shaped microlens area is provided with a gradient ring-shaped microlens area and a full ring-shaped microlens area;

[0046] Fig.10 The present invention is a structural schematic diagram of a spectacle lens in which a ring-shaped microlens area is provided with a ring-shaped lower microlens area.

[0047] In the figure: 1 central correction area; 2 nasal microlens area; 3 temporal microlens area; 4 gradient microlens area; 5 full microlens area; 6 lower microlens area; 7 microlens; 8 concave lens piece; 9 convex lens piece; 10 prism piece with base facing the nasal side; 11 annular microlens area; 12 gradient annular microlens area; 13 full annular microlens area; 14 annular lower microlens area.

[0048] English symbols: VM: Vertical Meridian; HM: Horizontal Meridian; BI: Base in or base towards the inside; al: length of the radius line on one side; a2: length of the radius line on the other side. DETAILED DESCRIPTION

[0049] The purpose of the present invention is to provide a peripheral defocus microlens spectacle lens with larger relative convex lens refractive power on the nasal and temporal sides, low astigmatism, excellent quality, and high wearing compliance through the following specific implementation methods.

[0050] The meaning of terms in this manual:

[0051] The top shape of the dividing line of the eyeglass lens: According to the top position of the dividing line, it is divided into different shapes. The highest point of the dividing line is called the dome shape, the slightly lower point of the dividing line is called the arc top shape, the midpoint of the dividing line is called the flat top shape or a line shape, and the dividing line between the dome shape and the arc top shape is also called the arc top shape.

[0052] Microlenses are optical elements. Identical microlenses are arranged on a plane at a certain period to form a microlens array. In order to reduce the size of microlenses and microlens arrays, the diameter of independent microlenses can be set to millimeter level, micrometer level and nanometer level, and the microlens array forms an optical element.

[0053] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0054] The micro-lens peripheral defocused spectacle lenses are frame spectacle lenses, hereinafter referred to as such spectacle lenses.

[0055] This eyeglass lens is provided with a central correction area, a nasal microlens area, a temporal microlens area, and a lower microlens area. The nasal microlens area and the temporal microlens area are each provided with two gradient microlens areas with different refractive powers and a full microlens area.

[0056] Alternatively, the spectacle lens is provided with a central correction zone and an annular microlens zone, the annular microlens zone is provided with two gradient annular microlens zones with different refractive powers and a full annular microlens zone, or the lower area of ​​the annular microlens zone is provided with an annular lower microlens zone.

[0057] The microlens area is composed of multiple independent microlens arrays, and at least two or more microlenses in the microlens array area have different refractive power, shape, and radial length settings. The independent microlens setting is a convex lens relative to the central correction area, with a radial length of 0.2mm to 4.5mm, and the distance between two adjacent microlenses is 0.1mm to 0.4mm.

[0058] Alternatively, the independent microlenses are arranged at nanometer level, and the diameter length is 10nm to 100nm.

[0059] The central correction area of ​​the lens corrects the myopic defocus of the central retina of the myopic eye, the nasal microlens area corrects the hyperopic defocus of the temporal retinal periphery of the myopic eye, the temporal microlens area corrects the hyperopic defocus of the nasal retinal periphery of the myopic eye, and the lower microlens area corrects the accommodation or convergence dysfunction of the myopic eye.

[0060] The main pathogenic mechanism of myopia is peripheral hyperopic defocus of the retina. The latest research confirms that myopia is mainly caused by peripheral hyperopic defocus of the temporal retina, or hyperopic refractive anisometropia of the nasotemporal retina. As myopia increases, the value of hyperopic refractive anisometropia of the nasotemporal retina also increases accordingly. Correcting the asymmetric hyperopic refractive anisometropia of the nasotemporal retina is the preferred intervention measure for correcting the increase in myopia.

[0061] Currently, the popular peripheral defocus lenses on the market include Zeiss Growth Lenses with an elliptical central viewing area, with an authorization announcement number of CN101855590B; Toric Lenses with a perfect circular central viewing area, with an authorization announcement number of CN101317120B; and Hoya Micro Lenses' New Lexue Toric Lenses, with an authorization announcement number of CN104678572B. Existing peripheral defocus lenses cannot correct the asymmetric hyperopic defocus on the nasotemporal side, resulting in overcorrection on one side and undercorrection on the other side, and also generating new peripheral hyperopic anisometropia.

[0062] The lenticular peripheral defocus lens is designed with a nasal lenticular area and a temporal lenticular area to correct peripheral hyperopic anisometropia of the retina, and a lower lenticular area to correct myopic accommodation and convergence dysfunction.

[0063] The microlens area of ​​the eyeglass lens is composed of a plurality of independent microlens arrays, and at least two or more microlenses in the microlens array area have different refractive powers, shapes, and meridian lengths. The refractive powers of two or more microlenses in the microlens array area are designed to be different from each other in order to reduce the refractive power transition between two adjacent locations too fast, resulting in a refractive jump phenomenon.

[0064] Myopic defocus is present in the upper and lower peripheral retina of myopic eyes. Myopic defocus is a good defocus for myopic eyes, which delays the growth of the eyeball and controls the increase of myopia. Myopic defocus is present in the upper and lower peripheral retina of myopic eyes. It has no inducing effect on myopia and does not need correction. The central correction area of ​​the spectacle lens is designed to be open up and down, with a horizontal diameter length of 4mm to 8mm along the half side of the optical center, and the central correction area is set to have a diopter power of 0.00D to -8.00D. Usually, the 5mm diameter area of ​​the optical center of the spectacle lens is used to correct the refractive error within 10° of the macula of the retina. Myopic eyes show myopic defocus in the central retina. A concave lens is used to shift the light backwards and focus on the retina. The central correction area is designed to be too narrow, and the field of vision is limited. The central correction area is designed to be too wide, and the peripheral defocus correction area is relatively narrow.

[0065] The nasal microlens area or the temporal microlens area is set as two gradient microlens areas with different refractive powers and a full microlens area. The gradient microlens area is 4mm to 8mm from the optical center and the horizontal diameter is 4mm to 6mm. The horizontal diameter of the full microlens area is 8mm to 16mm, or it is set to the edge of the lens, at least the full microlens area is set 20mm away from the optical center. The full microlens area is at least set 20mm away from the optical center to ensure that the lens has enough area to correct the hyperopic defocus of the retinal periphery. Myopia presents hyperopic defocus of the nasal and temporal retinal periphery. The temporal side has a larger amount of hyperopic defocus than the nasal side. The closer the retinal periphery is to the peripheral part, the greater the defocus. The retinal peripheral refraction detector is used for measurement, and 30° to 40° of the retinal periphery is used as the correction of the hyperopic defocus of the retinal periphery. A positive addition value relative to the refractive power of the central correction area is used, and a convex lens is used to shift the light forward and focus on the retina.

[0066] The nasal microlens area or the temporal microlens area is set as a gradient microlens area and a full microlens area. The purpose is to evenly transition the refractive power between the central correction area and the full microlens area in the gradient microlens area to reduce the refractive jump phenomenon. Another purpose of setting the gradient microlens area and the full microlens area in the eyeglasses is that the closer the peripheral hyperopic defocus of the retina is to the peripheral part, the greater the defocus is, and the refractive power of the eyeglasses is gradually increased from the inside to the outside. The gradient microlens area is based on the refractive power of the central correction area, and gradually increases to the refractive power of the full microlens area according to the gradient of +0.25D to +0.75D. The gradient of +0.50D is preferably selected, and the refractive power of the full microlens area is greater than that of the gradient microlens area.

[0067] The refractive power of the nasal microlens area is greater than that of the temporal microlens area. The purpose is to correct the hyperopic defocus of the temporal retinal periphery of the myopic eye, which is greater than the hyperopic defocus refractive power of the nasal retinal periphery, so that the hyperopic defocus of the nasal temporal periphery is evenly corrected above the retina.

[0068] The lower lenticular area is set to a positive value relative to the refractive power of the central correction area, or is set to a composite base facing the nose side prism. The nasal lenticular area and the temporal lenticular area are set to have a refractive power of +0.50D to +5.00D relative to the central correction area, and the nasal lenticular area is greater than the temporal lenticular area by +0.50D to +2.00D.

[0069] The nasal microlens area and the temporal microlens area of ​​the spectacle lens are provided with the same or different numbers of microlenses, and at least 80 or more independent microlenses are provided on each side, and the independent microlenses are provided in a perfect circle, an ellipse or a hexagon. The diameter length of the independent microlenses is provided in the millimeter level, the micrometer level and the nanometer level. The diameter length is provided in the millimeter level with a diameter length of 0.8mm to 2.0mm, and the distance between two adjacent microlenses is 0.1mm to 0.2mm. The diameter length is provided in the micrometer level with a diameter length of 300μm to 700μm, and the diameter length is provided in the nanometer level with a diameter length of 10nm to 100nm.

[0070] The nose side micro lens area and the temporal side micro lens area of ​​the spectacle lens are provided with various shapes:

[0071] Set up a vertical ellipse: the central correction area 1, the nasal microlens area 2, the temporal microlens area 3, the gradient microlens area 4, the full microlens area 5, the lower microlens area 6 and the microlens 7 in the figure form a vertical elliptical eyeglass lens set up in the nasal temporal microlens area (such as Figure 1 ).

[0072] Figures 4 to 8 The microlens diagram is omitted. During the manufacturing process of the eyeglass lens, a microlens array is provided in the nasal microlens area, the temporal microlens area, and the lower microlens area. The shape of the microlens array is set as follows:

[0073] Set a perfect circle: the central correction area 1, the nasal microlens area 2, the temporal microlens area 3, and the lower microlens area 6 in the figure form a perfect circular eyeglass lens set in the nasal and temporal microlens areas (such as Figure 4 ).

[0074] Set up a transverse ellipse: the central correction area 1, the nasal microlens area 2, the temporal microlens area 3, and the lower microlens area 6 in the figure form a transverse elliptical eyeglass lens set up in the nasal and temporal microlens areas (such as Figure 5 ).

[0075] The nasal microlens area and the temporal microlens area are set in an ellipse: the ellipse is divided into an ellipse in which the diameter along one side of the optical center is longer than the diameter along the other side, and another ellipse is an ellipse in which the radius line a2 along one side of the optical center is longer than the radius line a1 on the other side. The central correction area 1, the nasal microlens area 2, the temporal microlens area 3, and the lower microlens area 6 in the figure form an elliptical eyeglass lens in which the diameter of half of the nasal and temporal microlens areas is longer than the diameter of the other half (such as Figure 6 ).

[0076] Setting a fan ring: the central correction area 1, the nasal microlens area 2, the temporal microlens area 3, and the lower microlens area 6 in the figure form a fan ring eyeglass lens set in the nasal and temporal microlens areas (such as Figure 7 ).

[0077] Setting the arc top shape: the central correction area 1, the nasal micro lens area 2, the temporal micro lens area 3, and the lower micro lens area 6 in the figure form an arc top eyeglass lens (such as Figure 8 ).

[0078] Another technical solution of this microlens peripheral defocus spectacle lens is: the spectacle lens surface is designed to have a central correction area for correcting the myopic defocus of the central part of the retina of the myopic eye, and an annular microlens area for correcting the hyperopic defocus of the peripheral part of the retina of the myopic eye.

[0079] The annular microlens area 11 is configured to form two areas with different refractive powers of microlenses, the central correction area 1, the gradient annular microlens area 12 near the optical center axis, and the full annular microlens area 13 away from the optical center axis, forming an annular microlens area with a gradient annular microlens area and a full annular microlens area (such as Fig. 9 ).

[0080] Or this kind of spectacle lens, the central correction area 1 in the figure, is provided with a circular lower microlens area 14 for correcting myopia accommodation and convergence dysfunction in the lower area of ​​the annular microlens area 11, forming a spectacle lens with an annular lower microlens area (such as Fig.10 ).

[0081] The inner and outer circular azimuths of the nasal lenticule area and the temporal lenticule area are set to 60° to 180°. An ellipse is an oval that changes from a circle to an oblong, which is flatter than a circle. The ellipse is divided into a vertical ellipse and a horizontal ellipse. The ellipse is further divided into an ellipse in which the diameter along one side of the optical center is longer than the diameter on the other side. The other type of ellipse is an ellipse in which the radius along one side of the optical center is longer than the radius on the other side. The inner and outer circular azimuths are set to 60° to 180° to ensure that the peripheral defocus correction area has sufficient area. The circular azimuths of the nasal lenticule area and the temporal lenticule area are each set to 180°, which is actually a semi-circular azimuth. This design ensures the maximum defocus correction area.

[0082] The lower microlens area of ​​the eyeglass lens is set to a horizontal ellipse, a vertical ellipse, a perfect circle, an arc top shape, or a linear shape, and is set to multiple microlenses with equal refractive power, or is set to a spherical or aspherical lens with uniform refractive power. The lower microlens area is set to a refractive power of +0.50D to +3.00D relative to the central correction area.

[0083] The central correction area 1 of the spectacle lens is set as a concave lens 8, the nasal microlens area 2, the temporal microlens area 3 and the lower microlens area 6, and a convex lens 9 with a refractive power relative to the central correction area 1 is set to form a convex lens spectacle lens with a lower microlens area (such as Figure 2 The purpose of setting the lower microlens area is to treat myopia with near esotropia and over-accommodation at near distance. The lower microlens area is preferably set to a refractive power of +1.50D to +2.50D relative to the central correction area.

[0084] The lower microlens area of ​​the eyeglass is provided with a composite base facing the nose side prism lens. In the figure, the central correction area 1 is provided with a concave lens sheet 8, the nose side microlens area 2, the temporal side microlens area 3 and the lower side microlens area 6 are provided with a convex lens sheet 9 with a refractive power relative to the central correction area 1, and the base facing the nose side prism lens 10 is provided in the lower side microlens area 6, so as to form a composite prism eyeglass with a lower side microlens area (such as Figure 3 ). The base of the prism is set toward the nose side, and the purpose is to be used for myopia with near exophoria and near accommodation lag, and the prism power is set to 0.5Δ to 6.0Δ.

[0085] The nose side microlens area or the temporal side microlens area of ​​the spectacle lens may also be provided with a plurality of microlenses with equal refractive power.

[0086] This microlens peripheral defocus eyeglass lens is configured as a unilateral refractive lens surface or a bilateral refractive lens surface, wherein the unilateral refractive lens surface refers to a central correction area, a nasal microlens area, a temporal microlens area and a lower microlens area which are injection molded or processed on one side of the lens using a lens CNC lathe.

[0087] Bilateral refractive lens refers to the nasal microlens area, the temporal microlens area and the lower microlens area which are injection molded on the outer surface of the lens, and the central correction area is set on the inner surface of the lens. The prepared outer mirror blank is installed on the lens suction cup, and the inner mirror surface is processed by the lens CNC lathe, or the lens is obtained by micro-nano 3D printing.

[0088] This microlens peripheral defocused eyeglass lens is selected from soft transparent plastic polymer materials, and is prepared by centrifugal casting, cutting and grinding, or direct molding to prepare a flexible transparent refractive eyeglass lens with a thickness of 0.5 mm to 2.0 mm and an outer refractive surface and an inner adhesive surface. This flexible transparent refractive eyeglass lens is also called a pressed eyeglass lens, which is a commonly used eyeglass lens in ophthalmic clinics. Pressed eyeglass lenses are usually used to correct high hyperopia and high myopia, and pressed prism eyeglass lenses are used for strabismus correction. The outer refractive surface of the flexible transparent refractive eyeglass lens is provided with a central correction area, a nasal microlens area, a temporal microlens area, and a lower microlens area. The inner adhesive surface is a plano and flat adhesive lens, which is attached to an optical glass or resin frame eyeglass lens.

[0089] The eyeglasses of the present invention adopt microlens optical design technology, and the microlens area is composed of a plurality of independent microlens arrays. At least in the microlens array area, there are two or more microlenses with different refractive power, shape, and radial length. The radial length of the independent microlens is 0.2 mm to 4.5 mm, and the distance between two adjacent microlenses is 0.1 mm to 0.4 mm.

[0090] The optical surface shape of the eyeglass lens is designed as a central correction area, a nasal microlens area, a temporal microlens area, and a lower microlens area, or the optical surface shape is designed as a central correction area and an annular microlens area, or the annular microlens area is designed as a gradient annular microlens area and a full annular microlens area, or the area below the annular microlens area is set as an annular lower microlens area.

[0091] This micro-lens peripheral defocused eyeglass has the advantages of greater relative convex lens refractive power on the nasal and temporal sides, low astigmatism, excellent lens quality, and high wearing compliance, producing unexpected technical effects, with outstanding substantive characteristics and significant progress. This eyeglass is suitable for myopia in children and adolescents between the ages of 6 and 18.

[0092] Finally, it should be clarified that changes and modifications to the design parameters of the central correction area, nasal microlens area, temporal microlens area, lower microlens area and annular microlens area described in the present invention are also within the protection scope of the present invention.

Claims

1. A microlens peripheral defocused eyeglass lens, which is a frame eyeglass lens, characterized in that: The spectacle lens is provided with a central correction area, a nasal microlens area, a temporal microlens area, and a lower microlens area, and the nasal microlens area and the temporal microlens area are each provided with two gradient microlens areas with different refractive powers and a full microlens area, or the spectacle lens is provided with a central correction area and an annular microlens area, and the annular microlens area is provided with two gradient annular microlens areas with different refractive powers and a full annular microlens area, or the lower area of ​​the annular microlens area is provided with an annular lower microlens area; The microlens area is composed of a plurality of independent microlens arrays, at least two or more microlenses in the microlens array area have different refractive power, shape, and radial length settings, and the independent microlenses are convex lenses relative to the central correction area, with a radial length of 0.2 mm to 4.5 mm, and a distance between two adjacent microlenses of 0.1 mm to 0.4 mm; Alternatively, the independent microlenses are arranged at nanometer level, and the diameter length is 10nm to 100nm.

2. The microlens peripheral defocus eyeglass lens according to claim 1, characterized in that: The central correction zone corrects the myopic defocus of the central retina of the myopic eye, the nasal microlens zone and the temporal microlens zone respectively correct the hyperopic defocus of the temporal and nasal retinal periphery of the myopic eye, the gradient microlens zone and the gradient annular microlens zone correct the low-refractive-power hyperopic defocus of the retina periphery near the optical center axis of the myopic eye, the full-quantity microlens zone and the full-quantity annular microlens zone correct the high-refractive-power hyperopic defocus of the retina periphery far from the optical center axis of the myopic eye, and the lower microlens zone and the annular lower microlens zone correct the accommodation and convergence dysfunction of the myopic eye.

3. The microlens peripheral defocus eyeglass lens according to claim 1, characterized in that: The nasal microlens area and the temporal microlens area are provided with the same or different numbers of microlenses, at least 80 or more independent microlenses are provided on each side, the independent microlenses are provided in a perfect circle, an ellipse or a hexagon, and the diameter length of the independent microlenses is 0.8 mm to 2.0 mm.

4. The microlens peripheral defocus eyeglass lens according to claim 1, characterized in that: The central correction area is configured to be an upper and lower window-opening type, with a horizontal radial length of 4mm to 8mm along half of the optical center, the gradient microlens area is 4mm to 8mm from the optical center, and the horizontal radial length is 4mm to 6mm, the horizontal radial length of the full microlens area is 8mm to 16mm, or it is configured to the edge of the lens, at least the full microlens area is configured to be 20mm away from the optical center, the nasal microlens area has a greater refractive power than the temporal microlens area, the full microlens area has a greater refractive power than the gradient microlens area, the gradient microlens area gradually increases to the refractive power of the full microlens area according to the gradient of +0.25D to +0.75D based on the refractive power of the central correction area, the lower microlens area is configured to be a positive addition relative to the refractive power of the central correction area, or it is configured to be a prism lens with a composite base facing the nasal side.

5. The microlens peripheral defocus eyeglass lens according to claim 1, characterized in that: The central correction zone is set to have a refractive power of 0.00D to -8.00D, the nasal microlens zone and the temporal microlens zone are set to have a refractive power of +0.50D to +5.00D relative to the central correction zone, and the nasal microlens zone is larger than the temporal microlens zone in refractive power of +0.50D to +2.00D.

6. The microlens peripheral defocus eyeglass lens according to claim 1, characterized in that: The nasal microlens area and the temporal microlens area are set to a vertical ellipse, a perfect circle, a horizontal ellipse, an ellipse with a radius line on one side longer than the radius line on the other side, a fan ring, or an arc top shape, and the inner and outer circumferential azimuths are set to 60° to 180°.

7. The microlens peripheral defocus eyeglass lens according to claim 1, characterized in that: The lower microlens area is configured as a horizontal ellipse, a vertical ellipse, a perfect circle, an arc top, or a linear shape, and is configured as a plurality of microlenses with equal refractive power, or as a spherical or aspherical lens with uniform refractive power.

8. The microlens peripheral defocus eyeglass lens according to claim 1, characterized in that: The lower microlens area is set to have a refractive power of +0.50D to +3.00D relative to the central correction area, or is set to a prism lens with a composite base facing the nose and a prism power of 0.5Δ to 6.0Δ.

9. The microlens peripheral defocus eyeglass lens according to claim 1, characterized in that: The central correction area of ​​the eyeglass lens is arranged in a perfect circle or an ellipse, the area surrounding the central correction area is an annular microlens area, the area near the optical center axis is a gradient annular microlens area, the area away from the optical center axis is a full-scale annular microlens area, the annular lower microlens area is arranged in a semi-circular shape, the refractive power is a positive addition value relative to the refractive power of the central correction area, or is arranged as a prism lens with a composite base facing the nose side.

10. The microlens peripheral defocus eyeglass lens according to claim 1, characterized in that: The spectacle lens is configured as a unilateral refractive lens surface or a bilateral refractive lens surface. The unilateral refractive lens surface refers to a central correction area, a nasal microlens area, a temporal microlens area and a lower microlens area, which are injection molded or processed by a lens CNC lathe on one side of the lens. The bilateral refractive lens surface refers to a nasal microlens area, a temporal microlens area and a lower microlens area, which are injection molded on the outer surface of the lens. The central correction area is arranged on the inner surface of the lens, which is processed by a lens CNC lathe, or the lens is obtained by 3D printing, or the lens is selected from soft transparent plastic. A flexible transparent refractive lens with a thickness of 0.5 mm to 2.0 mm and provided with an outer refractive surface and an inner bonding surface is prepared from polymer material by centrifugal casting, cutting and grinding, and direct molding. The outer refractive surface is provided with a central correction area, a nasal microlens area, a temporal microlens area, and a lower microlens area. The inner bonding surface is a plano and flat bonding lens, which is bonded to an optical glass or resin frame lens. The lens is assembled on a single-layer frame frame, or a 0.00DS lens with a central correction area is assembled on a double-layer additional frame frame.

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