Intelligently adjustable defocus glasses

Abstract

The present invention belongs to the technical field of myopia prevention and control, and specifically relates to a kind of intelligently adjustable defocus glasses, including a glasses frame and glasses legs connected to both ends of the glasses frame by hinges, the lower end surface of the glasses frame is symmetrically provided with two inner lenses and two outer lenses, and the outer lenses are located on the side of the inner lenses away from the glasses legs, the outer lenses are detachably connected to the glasses frame, and the inner lenses can be adjusted along their length direction on the glasses frame; the outer lenses and the inner lenses adopt Alveraz free-form surface design and realize 0~6D adjustable, the inner lenses include a central visual area and a multi-point defocus area surrounding the central visual area, and a plurality of micro-convex lenses are distributed in a multi-circular array in the multi-point defocus area. The shortcomings of the existing defocusing technology are overcome, and the curvature of the defocusing surface is smoothly changed by using the gentle movement of the inner lenses to improve the wearing comfort; through training, the eye axis growth rate can be controlled within 75%, and the eye contrast sensitivity and vision can also be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of myopia prevention and control, and specifically relates to a pair of intelligently adjustable defocus glasses. Background Art

[0002] Myopia refers to the refractive state in which parallel light rays pass through the eye's refractive system and focus in front of the retina when the eye is in a relaxed state. After correction by wearing glasses, the focus falls on the retina, but objects on both sides appear behind the retina. The eye has the characteristic of focusing growth, that is, in order to see the object clearly, it will "look for" the image behind, which leads to the elongation of the eye axis and the increase of myopia.

[0003] The global myopia rate remains high, and the pathogenesis of myopia is still unclear. The methods currently on the market to control myopia include:

[0004] External environment method: increase outdoor activities and relax the ciliary muscles, but due to the severe lack of time for outdoor activities, the myopia rate remains high.

[0005] Drug control methods, such as atropine, paralyze the ciliary muscles and reduce accommodation to control myopia. Due to the effect of atropine on dopamine secretion, long-term use can cause dry eyes. Improper use can even cause toxic reactions, and the effect will rebound after the drug effect disappears. Therefore, it has not obtained FDA certification.

[0006] Methods to improve contrast sensitivity, such as varifocal glasses such as Gabor glasses.

[0007] Optical correction methods, such as defocus lenses and orthokeratology lenses, are based on the peripheral myopia defocus theory. Multi-point optical convex lenses are used on the periphery of the lens. The incident light passing through the peripheral lens can be focused in front of the peripheral retina, giving a signal to let the retina move forward, achieving the effect of myopic defocus, thereby delaying the occurrence of myopia.

[0008] The defocus lenses currently on the market include: Zeiss's Growth Lens, HOYA's New Lexor, and Essilor's Star Control. Their disadvantages are: 1. The effect of controlling the eye axis is poor, with the highest effective control rate being 68%; 2. It cannot improve vision (contrast sensitivity) and cannot eliminate ciliary muscle spasm; 3. The lens design is integrated, and they are all fixed single-piece defocus lenses, which cannot be zoomed, and the curvature of the lens periphery is steep and has no transition, resulting in the lens not being smooth enough.

[0009] The experience after wearing it is a little uncomfortable. The peripheral vision is slightly blurred when looking straight ahead, there is a mosaic feeling when looking from the side, and there is a slight dizziness and mosaic-like surge when turning the eyes.

[0010] Based on this, we need to design a smart defocus glasses that can control the growth of the eye axis and improve vision, and it is comfortable to wear. The research on this smart defocus glasses needs to be deepened. Summary of the invention

[0011] The purpose of the present invention is to provide an intelligently adjustable defocus glasses, which overcomes the shortcomings of the prior art and utilizes the gentle movement of the inner lens to control the smooth change of the curvature of the defocus surface, thereby improving the wearing comfort; through training, the axial length growth rate can be controlled at 75%, and the contrast sensitivity and vision can also be improved.

[0012] To solve the above problems, the technical solutions adopted by the present invention are as follows:

[0013] A pair of intelligently adjustable defocus glasses, comprising a glasses frame and glasses legs hinged at both ends of the glasses frame, wherein two inner lenses and two outer lenses are symmetrically arranged on the lower end surface of the glasses frame, and the outer lenses are located on a side of the inner lenses away from the glasses legs, the outer lenses are detachably connected to the glasses frame, and the inner lenses can be adjusted on the glasses frame along the length direction thereof;

[0014] The outer lens and the inner lens adopt Alveraz free-form surface design and can be adjusted from 0 to -6D. The inner lens includes a central visual area and a multi-point defocus area surrounding the central visual area. A plurality of micro convex lenses are distributed in a multi-circular array in the multi-point defocus area.

[0015] Furthermore, the diameter of the central visual area is 9 mm, the diameter of the micro convex lens is 1 mm, the spacing between adjacent micro convex lenses in the same ring is 1 mm, and the spacing between the micro convex lenses in adjacent rings is 2 mm.

[0016] Furthermore, a magnetically attracted fixing piece is fixedly provided on the top of the inner lens, and a magnetic attracting piece for connecting the fixing piece is provided in the glasses frame.

[0017] Furthermore, a micro motor, a battery for power supply and a control mainboard are arranged inside the glasses frame, and the two motors are respectively used to drive the magnetic attraction member to move along the length direction of the glasses frame.

[0018] Furthermore, a card block is fixedly arranged at the top end of the outer lens, and a card slot adapted to the card block is opened at the bottom end of the glasses frame.

[0019] Furthermore, the lower end surface of the spectacle frame is connected to two nose pads, and the two nose pads are located between the two inner lenses, and the top of the nose pads is connected to the spectacle frame by magnetic attraction. Each inner lens is elliptical, and the long axis length of the elliptical inner lens is 11-13 mm, and the short axis length of the elliptical inner lens is 9 mm.

[0020] Furthermore, a protective belt made of silicone material is provided on the outer side of the temple.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention uses a plurality of array-distributed micro-convex lenses to form an endoscope, which can dynamically zoom, continuously train the ciliary muscle, eliminate ciliary muscle spasm, and make the ciliary muscle elastic, thereby controlling myopia.

[0023] 2. The present invention adopts detachable inner lens, outer lens and nose pad, which can be adjusted and customized according to the actual situation of the user to meet the needs of different users, which is more scientific and comfortable.

[0024] 3. The present invention utilizes the micron-level movement of the inner lens to control the smooth change of the curvature of the inner defocus lens, thereby improving the wearing comfort of the user.

[0025] 4. Long-term use of the present invention for training can control the eye axis growth rate to 75%, and can also improve contrast sensitivity and vision. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The figure is a schematic diagram of the structure of a pair of intelligently adjustable defocus glasses.

[0027] Figure 2 The present invention is a schematic diagram of the structure of an inner lens in an intelligently adjustable defocus glasses.

[0028] Figure 2a It is a schematic diagram of the elliptical inner lens of the adjustable defocus glasses in the present invention.

[0029] Figure 2b It is a schematic diagram of the distance between the inner lens and the outer lens of the defocus glasses in the present invention.

[0030] Figure 3 The present invention is a schematic diagram of the internal structure of a glasses frame in a pair of intelligently adjustable defocus glasses.

[0031] Figure 4 The present invention is a schematic diagram of the assembly structure of an inner lens and a glasses frame in a pair of intelligently adjustable defocus glasses.

[0032] Figure 5 The present invention is a schematic diagram of the coordination state of the inner lens and the outer lens in a pair of intelligently adjustable defocus glasses.

[0033] In the figure: 1. outer lens; 2. inner lens; 21. central visual area; 22. multi-point defocus area; 23. connector; 3. protective belt; 4. temple; 5. nose pad; 6. glasses frame; 61. motor; 62. battery; 63. control main board. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1-5 As shown, the intelligently adjustable defocus glasses of the present invention include a glasses frame 6 and glasses legs 4 hinged at both ends of the glasses frame 6, two inner lenses 2 and two outer lenses 1 are symmetrically arranged on the lower end surface of the glasses frame 6, and the outer lenses 1 are located on the side of the inner lenses 2 away from the glasses legs 4, the outer lenses 1 are detachably connected to the glasses frame 6, and the inner lenses 2 can be adjusted on the glasses frame 6 along the length direction thereof;

[0036] The outer lens 1 and the inner lens 2 are designed with Alveraz free-form surfaces and can be adjusted from 0 to -6D. The inner lens 2 includes a central visual area 21 and a multi-point defocus area 22 surrounding the central visual area 21. A plurality of micro convex lenses are distributed in a multi-circular array in the multi-point defocus area 22. Each inner lens is as follows Figure 2a In one embodiment, the major axis length of the elliptical inner lens is 11-13 mm, and the minor axis length of the elliptical inner lens is 9 mm.

[0037] Emmetropia refers to the situation when the eye is in a static (non-adjusted) state, and parallel light rays emitted by an object 5 meters away enter the eye and are focused on the retina through the eye's refractive system. The focus falls on the front of the retina is called myopic defocus, and the focus falls on the back of the retina is called hyperopic defocus; in this application, each micro-convex lens forms a myopic defocus light band in front of the retina, forming a layer of myopic defocus area in front of the retina. The brightness of each micro-convex lens has been carefully calculated to ensure that the distance between the myopic defocus area and the retina at all parts of the eyeball is roughly the same, whether it is close to the para-central area of ​​the retina or far from the equator (dome) of the center of the retina, that is, no matter where it is, the amount of myopic defocus mitigation signal is the same.

[0038] The diameter of the central visual area 21 is 9 mm, the diameter of the micro-convex lens is 1 mm, and the spacing between adjacent micro-convex lenses in the same ring is 1 mm, and the spacing between micro-convex lenses in adjacent rings is 2 mm; Figure 2b shown.

[0039] In order to facilitate the removal of the inner lens 2 , a magnetically attracted fixing piece is fixed on the top of the inner lens 2 , and a magnetic attraction piece for connecting the fixing piece is arranged in the spectacle frame 6 .

[0040] In order to facilitate the movement of the inner lens 2, a micro motor 61, a battery 62 for power supply and a control motherboard 63 are arranged inside the glasses frame 6. The micro motor 61 is used to drive the magnetic suction part to move along the length direction of the glasses frame 6. The movement of the inner lens 2 can adjust the pupil distance and smoothly change the curvature of the defocus lens during training.

[0041] In order to facilitate the disassembly of the outer lens 1 , a clamping block is fixedly arranged at the top of the outer lens 1 , and a clamping slot adapted to the clamping block is opened at the bottom of the spectacle frame 6 .

[0042] In order to facilitate the adjustment of pupil height, two nose pads 5 are connected to the lower end surface of the glasses frame 6, and the two nose pads 5 are located between the two inner lenses 2, and the top of the nose pads 5 is connected to the glasses frame 6 by magnetic attraction; there are 8 different models of nose pads 5, and the adjustment range of pupil height is 20mm-28mm.

[0043] In order to improve wearing comfort, a protective band 3 made of silicone material is provided on the outer side of the temple 4.

[0044] In summary, after the user gets the smart defocus glasses, he / she first selects the appropriate inner lens 2, outer lens 1 and nose pad 5 according to his / her own situation, adjusts the pupil distance, the degree of the outer lens 1 and the pupil height, and then wears the defocus glasses on the eye position. When the glasses are not turned on, the eye axis growth can be controlled by the defocus glasses; when the glasses are turned on for training, the motor 61 drives the inner lens 2 of the defocus glasses to move regularly to improve vision and contrast sensitivity.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A pair of intelligently adjustable defocus glasses, comprising a glasses frame (6) and glasses legs (4) connected to both ends of the glasses frame (6) by hinges, characterized in that: The lower end surface of the spectacle frame (6) is symmetrically provided with two inner lenses (2) and two outer lenses (1), and the outer lenses (1) are located on a side of the inner lenses (2) away from the temples (4), the outer lenses (1) are detachably connected to the spectacle frame (6), and the inner lenses (2) can be adjusted on the spectacle frame (6) along the length direction thereof; The outer lens (1) and the inner lens (2) are designed with Alveraz free-form surfaces and are adjustable from 0 to -6D. The inner lens (2) comprises a central visual area (21) and a multi-point defocus area (22) surrounding the central visual area (21). A plurality of micro-convex lenses are distributed in a multi-circular array in the multi-point defocus area (22). The diameter of the central visual area (21) is 9 mm, the diameter of the micro-convex lenses is 1 mm, and the spacing between adjacent micro-convex lenses in the same circle is 1 mm, and the spacing between the micro-convex lenses in adjacent circles is 2 mm. Each micro-convex lens forms a myopic defocus light band in front of the retina to form a layer of myopic defocus area in front of the retina. The light intensity of each micro-convex lens is set so that the distance between the generated myopic defocus area and the retina at various locations of the eyeball is consistent.

2. The intelligently adjustable defocus glasses according to claim 1, characterized in that: A magnetically attracted fixing piece is fixedly provided at the top end of the inner lens (2), and a magnetic attracting piece for connecting the fixing piece is provided inside the eyeglass frame (6).

3. The intelligently adjustable defocus glasses according to claim 2, characterized in that: A micro motor (61), a battery (62) for power supply and a control mainboard (63) are arranged inside the spectacle frame (6), and the motor (61) is used to drive the magnetic attraction member to move along the length direction of the spectacle frame (6).

4. The intelligently adjustable defocus glasses according to claim 1, characterized in that: A card block is fixedly arranged at the top end of the outer lens (1), and a card slot adapted to the card block is provided at the bottom end of the spectacle frame (6).

5. The intelligently adjustable defocus glasses according to claim 1, characterized in that: The lower end surface of the spectacle frame (6) is also connected to two nose pads (5), and the two nose pads (5) are located between the two inner lenses (2), and the top ends of the nose pads (5) are connected to the spectacle frame (6) by means of magnetic attraction.

6. The intelligently adjustable defocus glasses according to claim 1, characterized in that: A protective belt (3) made of silicone material is arranged on the outer side of the temple (4).

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