Optical lens

Abstract

The invention provides an optical lens, and relates to the field of myopia prevention and control, and the optical lens comprises a lens body and an optical module. The side part of the lens body comprises a convex surface and a concave surface which are opposite; the optical module comprises at least two of a first optical piece, a second optical piece and a third optical piece which are connected to the side part of the lens body, and the distribution characteristic corresponds to the distribution of fundus visual function cells of a lens wearer so as to provide multiple optical signal stimulation; the first optical part is an optical device with a scattering effect, the second optical part is a multi-point defocusing optical device, and the third optical part is of a continuous cylindrical lens structure. According to the optical lens, the scattering effect, the multi-point defocusing technology and the cylindrical lens structure are integrated, multiple optical signal stimulation can be provided in a high-density visual function cell area close to the light spot center corresponding to fundus visual function cell distribution rules of various people, the lens can adapt to different people, and the myopia prevention and control effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of myopia prevention and control, and specifically relates to an optical lens. Background Art

[0002] Myopia prevention and control lenses are a special type of lenses designed to slow down the development of myopia; through special optical designs such as peripheral defocus design, the peripheral light is focused in front of the retina, forming a myopic defocus signal, stimulating the eye's accommodation function, thereby inhibiting the growth of the eye axis and achieving the purpose of preventing and controlling myopia. Common types of myopia prevention and control lenses include defocus lenses, progressive multifocal lenses, etc. Defocus lenses can image the peripheral objects in front of the retina and intervene in the trend of eye axis elongation; progressive multifocal lenses, through multiple focal regions on a single lens, meet the visual needs at different distances, thereby relieving visual fatigue.

[0003] However, due to the differences in the distribution characteristics of fundus visual function cells among different populations and the differences in the sensitivity of different populations to various types of optical signal stimuli, existing myopia prevention and control lenses can usually only be adapted to a small number of specific populations. The myopia prevention and control effect of a myopia prevention and control lens is limited to a small number of people, and the universality of myopia prevention and control lenses is insufficient. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, this application provides an optical lens, which solves the problem that the population adaptation range of existing myopia prevention and control lenses has a large limitation.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] An embodiment of this application provides an optical lens, which includes a lens body and an optical module; the side of the lens body includes an opposite convex surface and concave surface; the optical module includes at least two of a first optical element, a second optical element, and a third optical element connected to the side of the lens body, and the distribution characteristics correspond to the distribution of fundus visual function cells of the lens wearer to provide multiple optical signal stimuli.

[0007] Specifically, the first optical element is an optical device with a scattering effect, the second optical element is an optical device with multiple-point defocus, and the third optical element has a continuous cylindrical lens structure; any one of the first optical element, the second optical element, and the third optical element has a preset mapping relationship between its arrangement position relative to the lens body and the defocus amount of its own microstructure.

[0008] In some embodiments, when the defocus amount of the microstructure of the first optical element is positive, the first optical element is located on the concave surface of the lens body; when the defocus amount of the microstructure of the first optical element is negative, the first optical element is located on the convex surface of the lens body.

[0009] In some embodiments, the lens body is composed of a polymer material including resin, and a part of the structure of any one of the first optical element, the second optical element, and the third optical element is embedded inside the lens body, and the other part of the structure protrudes from the side of the lens body.

[0010] In some embodiments, the optical module is composed of the first optical element, the second optical element, and the third optical element, and the first optical element, the second optical element, and the third optical element are all arranged in multiple circles.

[0011] In some embodiments, at least two of the first optical element, the second optical element, and the third optical element on the same side of the lens body partially overlap within the area of the lens body.

[0012] In some embodiments, the lens body includes a central region and a peripheral region located outside the central region. The first optical element, the second optical element, and the third optical element are all located in the peripheral region, and the central region corresponds to the macula of the eye of the lens wearer.

[0013] In some embodiments, both the first optical element and the second optical element are located on the convex surface of the lens body, and the third optical element is located on the concave surface of the lens body.

[0014] In some embodiments, a plurality of microstructures in the first optical element are arranged in an array, the first optical element is adjacent to the central region and the radial area range is 3 mm - 30 mm; the radial dimension range of a single microstructure in the first optical element and the second optical element is 0.01 mm - 0.4 mm.

[0015] In some embodiments, a plurality of microstructures in the second optical element are arranged in an array and the radial area range is 5 mm - 45 mm, and some of the microstructures in the second optical element overlap with some of the microstructures in the first optical element in space.

[0016] In some embodiments, the third optical element includes multiple circles of microstructures and each circle of microstructures is arranged in a closed ring shape. The curvature of any position along the circumferential direction of each circle of microstructures is the same. The radial area range of the third optical element is 6 mm - 60 mm, and the width of each circle of microstructures is 0.01 mm - 0.4 mm.

[0017] This application provides an optical lens. Compared with the prior art, it has the following beneficial effects:

[0018] In this application, a specific optical module is provided on the basis of the lens body. This optical module covers at least two of the first optical element, the second optical element, and the third optical element. That is, the first optical element, the second optical element, and the third optical element can be used in different combinations according to cost and requirements. And when selecting the first optical element, the second optical element, and the third optical element, a reasonable position arrangement is made based on the defocus amount of their own microstructures relative to the lens body. The first optical element, the second optical element, and the third optical element are respectively corresponding to the scattering effect, the multi-point defocus technology, and the cylindrical lens structure. The optical module of this application integrates optical devices with different functions. The first optical element can provide contrast control for the light reaching the fundus. The second optical element can perform defocus control. The third optical element performs aberration control. By integrating different optical devices, the optical lens of this application can correspond to the fundus visual function cells of various populations, adapt to different populations, and provide multiple optical signal stimulations for lens wearers on the premise of ensuring visual quality, and still be able to provide an ideal myopia prevention and control effect when facing different specific populations. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0020] Figure 1 is a three-dimensional schematic diagram of an optical lens provided by an embodiment of this application;

[0021] Figure 2 is Figure 1 the enlarged schematic diagram at a in

[0022] Figure 3 is a side view of an optical lens provided by an embodiment of this application;

[0023] Figure 4 is Figure 3 the partial structural schematic diagram of

[0024] Figure 5 is another three-dimensional schematic diagram of an optical lens provided by an embodiment of this application;

[0025] Figure 6 is Figure 5 the partial structural schematic diagram of

[0026] Brief Description of the Drawings: Lens body 1; First optical element 2; Second optical element 3; Third optical element 4; First microstructure 21; Second microstructure 31; Third microstructure 41; Convex surface A; Concave surface B; Central region C; Peripheral region D. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0029] The embodiments of the present application provide an optical lens, which solves the problem that the population adaptation range of existing myopia prevention and control lenses has a large limitation.

[0030] The technical solutions in the embodiments of the present application for solving the above technical problems are generally as follows:

[0031] Myopia prevention and control lenses are a special type of lenses designed to slow down the development of myopia; through special optical designs such as peripheral defocus design, the lenses make the peripheral light rays focus in front of the retina, forming a myopic defocus signal, stimulating the eye accommodation function, thereby inhibiting the growth of the eye axis and achieving the purpose of preventing and controlling myopia. Common types of myopia prevention and control lenses include defocus lenses, progressive multifocal lenses and point spread technology lenses. Defocus lenses can make the peripheral images form in front of the retina and intervene in the trend of eye axis elongation; progressive multifocal lenses meet the visual needs at different distances through multiple focal regions on one lens, thereby relieving visual fatigue. However, due to the differences in the distribution characteristics of fundus visual function cells among different populations and the differences in the sensitivity of different populations to various types of optical signal stimuli, existing myopia prevention and control lenses can usually only be adapted to a small number of specific populations, and the universality of myopia prevention and control lenses is insufficient.

[0032] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0033] First, an optical lens provided by an embodiment of the present application will be introduced below.

[0034] An optical lens provided by an embodiment of the present application is referred to Figures 1-6 together. The optical lens includes a lens body 1 and an optical module. The side of the lens body 1 includes a convex surface A and a concave surface B that are opposite to each other. The optical module includes at least two of a first optical element 2, a second optical element 3, and a third optical element 4 connected to the side of the lens body 1, and the distribution characteristics correspond to the distribution of the retinal visual function cells of the lens wearer to provide multiple optical signal stimulations.

[0035] Specifically, the first optical element 2 is an optical device with a scattering effect, the second optical element 3 is an optical device with multi-point defocus, and the third optical element 4 has a continuous cylindrical lens structure. The arrangement position of any one of the first optical element 2, the second optical element 3, and the third optical element 4 relative to the lens body 1 has a preset mapping relationship with the defocus amount of its own microstructure.

[0036] In the embodiment of the present application, it can be understood that the present application provides a specific optical module on the basis of the lens body 1. The optical module covers at least two of the first optical element 2, the second optical element 3, and the third optical element 4, that is, the first optical element 2, the second optical element 3, and the third optical element 4 can be used in different combinations according to cost and needs. The first optical element 2, the second optical element 3, and the third optical element 4 are divided into corresponding scattering effects, multi-point defocus technology, and cylindrical lens structure. The optical module of the present application integrates optical devices with different functions.

[0037] Specifically, in the first aspect, the first optical element 2 can provide contrast control of the light reaching the fundus based on the scattering effect. It can be understood that, first of all, scattering can make the light evenly distributed. When the light enters the eye, it will be scattered in the intraocular medium. The scattering phenomenon will cause the originally concentrated light to diverge in all directions, so that it is more evenly distributed on the fundus. For example, when the external light enters the eye through the pupil, a part of the light will be scattered by the intraocular refractive media such as the lens and the vitreous body. This scattering effect is like breaking up a concentrated beam of light, so that the light is no longer limited to a specific propagation direction, but can illuminate more areas of the fundus more widely. In the areas where there may be a strong contrast between light and dark, due to the even distribution of light, the contrast is reduced, making the overall illumination of the fundus more uniform.

[0038] Secondly, the light received by the fundus of the eye includes direct light and scattered light. There will be an interaction between the scattered light and the direct light. Direct light refers to the light that directly emits from an object and propagates in a straight line to the fundus of the eye. It carries clear image information of the object, but during the propagation process, it may be affected by absorption, refraction, etc. of the intraocular media, resulting in a decrease in the light intensity in some areas. Scattered light is the light that reaches the fundus of the eye after being scattered by the intraocular media. Although scattered light cannot directly form a clear image, scattered light can serve as a kind of background light, playing a role in supplementing and enhancing the contrast of the image formed by direct light. When the image formed by direct light is relatively dark, scattered light can provide additional illumination, making the details of the image easier to distinguish; when direct light is strong, scattered light can also play a certain buffering role, preventing the image from being too bright and losing details, thereby realizing the adjustment of the contrast of the light in the fundus of the eye.

[0039] Furthermore, the scattering degree of light with different wavelengths in the eye is different, which also helps to control the contrast of the light in the fundus of the eye. Generally speaking, light with a shorter wavelength is more likely to be scattered, while light with a longer wavelength is relatively less scattered. During the normal visual process, this scattering characteristic can make the light received by the fundus of the eye have a certain spectral distribution. For example, when the external light contains multiple wavelengths, the scattering of blue light will provide a certain degree of background light illumination for the surrounding environment of the fundus of the eye, while long-wavelength light such as red light can more effectively transmit the detailed information of the object. After setting the first optical element 2, through the combined action of the scattering and direct propagation of light with different wavelengths, an image with an appropriate contrast can be formed on the fundus of the eye, which can not only clearly see the details of the object but also have a certain background light to set off the object, making the visual effect clearer and more comfortable.

[0040] In the second aspect, the second optical element 3 can form multiple defocused areas on the lens to achieve the control of the defocus state of the eye. It can be understood that when a normal eye views an object, the light is focused on the retina to form a clear image. However, for myopic patients, due to the excessive length of the eye axis or the excessive refractive power of the refractive system such as the cornea and lens, the parallel light is focused in front of the retina, and the image formed on the retina becomes blurred. Since the growth and development of the eye are closely related to the visual signals received by the retina, when the peripheral area of the retina is in a hyperopic defocus state, it will stimulate the further growth of the eye axis, thus leading to the development of myopia. The second optical element 3 based on multi-point defocus, through a special optical design, makes the peripheral area of the retina form a myopic defocus to inhibit the growth of the eye axis, thereby controlling the development of myopia. Please refer to Figure 2 and Figure 4, a large number of minute second microstructures 31 are distributed on the second optical element 3. When light passes through, the second microstructures 31 at different positions will refract and scatter the light to different extents, thereby forming multiple discrete myopic defocus regions on the retina. In addition, when the eye is at different fixation distances and angles, the required defocus control degree is also different. The second optical element 3 has a certain dynamic defocus adjustment ability based on multi-point defocus control.

[0041] In a third aspect, the third optical element 4 can perform aberration control based on the refraction characteristics of light in different directions by the cylindrical lens structure and the optimization effect on the eye optical system. It can be understood that, first of all, astigmatism of the eye causes light to not be focused on the same point, but to form two focal lines before and after, thereby generating aberration and affecting visual clarity. A cylindrical lens has the ability to change the refraction of light in a specific direction. When its axis corresponds to the astigmatism axis, the refractive power can be increased or decreased in this direction, so that light in different directions can be refocused on the retina, reducing the aberration caused by astigmatism. Secondly, the cylindrical lens structure can adjust the overall refractive state of the eye by changing the propagation path of light, and thus control the aberration. Finally, in addition to the aberration caused by astigmatism and conventional refractive errors, there may also be some higher-order aberrations in the eye, such as coma and spherical aberration. The cylindrical lens structure can compensate and correct these higher-order aberrations to a certain extent through special designs and optimizations.

[0042] Based on this, the scattering effect, defocus control, and cylindrical lens structure have different directivities during use, and the optical signal stimuli provided by the three have different effects on different populations. The optical lens of the present application integrates different optical devices, combines at least two of the scattering effect, defocus control, and cylindrical lens structure, can correspond to the fundus visual function cells of various populations, adapt to different populations, and provide multiple optical signal stimuli for the lens wearer on the premise of ensuring visual quality, and still be able to provide an ideal myopia prevention and control effect when facing different specific populations.

[0043] In some embodiments, when the defocus amount of the self-microstructure of the first optical element 2 is positive, the first optical element 2 is located on the concave surface B of the lens body 1; when the defocus amount of the self-microstructure of the first optical element 2 is negative, the first optical element 2 is located on the convex surface A of the lens body 1.

[0044] In the embodiments of the present application, it can be understood that when selecting the first optical element 2, the second optical element 3, and the third optical element 4, a reasonable position arrangement is made based on the defocus amount of their own microstructures relative to the lens body. The mapping relationship between the arrangement positions of the second optical element 3 and the third optical element 4 relative to the lens body 1 and the defocus amount of their own microstructures is the same as that of the first optical element 2. That is, when different optical devices are provided on the lens body 1 in the present application, when the defocus amount of the microstructure of the optical device itself is positive, it is provided on the concave surface B; when the defocus amount of the microstructure of the optical device itself is negative, it is provided on the convex surface A.

[0045] It should be noted that a negative defocus amount means that it is necessary to diverge light rays to achieve specific optical effects, such as simulating myopic defocus to control the development of myopia. Compared with setting the negative defocus microstructure on the concave surface B or other positions, the convex surface A is more conducive to the initial divergence of light rays. In addition, setting the negative defocus microstructure on the convex surface A helps to better control the propagation direction and angle of light rays, reducing aberration and distortion. When light rays are incident from the convex surface A and act on the negative defocus microstructure, they can converge or diverge more regularly, making the imaging clearer and more accurate, and avoiding problems such as blurring and deformation caused by irregular refraction of light rays.

[0046] In some embodiments, please refer to Figures 1-6 , the lens body 1 is composed of a polymer material including resin. A part of the structure of any one of the first optical element 2, the second optical element 3, and the third optical element 4 is embedded inside the lens body 1, and the other part of the structure protrudes from the side of the lens body 1. It can be understood that the first optical element 2, the second optical element 3, and the third optical element 4 need to be embedded in the convex surface A or the concave surface B of the lens body 1 to form a structurally stable whole, but a part of the structure of the first optical element 2, the second optical element 3, and the third optical element 4 needs to protrude from the convex surface A or the concave surface B of the lens body 1 to adjust the propagation of light rays.

[0047] In some embodiments, please refer to Figures 1-6 , the optical module is composed of the first optical element 2, the second optical element 3, and the third optical element 4. The first optical element 2, the second optical element 3, and the third optical element 4 are all arranged in multiple circles. At least two of the first optical element 2, the second optical element 3, and the third optical element 4 on the same side of the lens body 1 partially overlap within the width of the lens body 1.

[0048] In the embodiments of the present application, it can be understood that the first optical element 2 includes a plurality of first microstructures 21, the second optical element 3 includes a plurality of second microstructures 31, and the third optical element 4 includes a plurality of third microstructures 41. One third microstructure 41 corresponds to one cylindrical lens structure; among them, the diopter of the second microstructure 31 and the third microstructure 41 can be positive or negative.

[0049] It should be noted that the first optical element 2, the second optical element 3, and the third optical element 4 are all reasonably positioned based on the positive or negative situation of their respective defocus amounts. When at least two of the first optical element 2, the second optical element 3, and the third optical element 4 are located on the same side of the lens body 1, the first microstructure 21, the second microstructure 31, and the third microstructure 41 are integrally formed with the lens body 1. And when the first microstructure 21, the second microstructure 31, and the third microstructure 41 are arranged on the same side of the lens body 1, the structures can overlap with each other to superimpose different optical stimulation signals.

[0050] In one example, please refer to Figure 4 , the first microstructure 21 and the second microstructure 31 can be set to be spherical, or ellipsoidal, or polyhedral; it can be understood that since human eye cells are polyhedral, in order to improve the effect of the lens on the superimposed stimulation of multiple optical signals on human eye cells, the first microstructure 21 and the second microstructure 31 can preferably be polyhedral.

[0051] In some embodiments, please refer to Figure 1 , Figure 3 , Figure 5 and Figure 6 , the lens body includes a central region C and a peripheral region D located outside the central region C. The first optical element 2, the second optical element 3, and the third optical element 4 are all located in the peripheral region D, and the central region C corresponds to the macula area of the wearer's eye. It can be understood that the peripheral region D and the central region C are adjacent to each other, and no additional optical devices are provided in the central region C to ensure the clear vision of the lens wearer, that is, when the first optical element 2, the second optical element 3, and the third optical element 4 are arranged, they are all arranged in the peripheral region D.

[0052] In one example, the first optical element 2 and the second optical element 3 are both located on the convex surface A of the lens body 1, and the third optical element 4 is located on the concave surface B of the lens body 1. It can be understood that Figures 1-6 the shown lens structure corresponds to the situation where the defocus amounts of the self-microstructures of the first optical element 2 and the second optical element 3 are negative, and the third optical element 4 is positive.

[0053] In some embodiments, please refer to Figures 1-4 , the multiple microstructures in the first optical element 2 are arrayed, the first optical element 2 is adjacent to the central region C and the radial amplitude range is 3 mm - 30 mm; the radial size range of a single microstructure in the first optical element 2 and the second optical element 3 is both 0.01 mm - 0.4 mm. The multiple microstructures in the second optical element 3 are arrayed and the radial amplitude range is 5 mm - 45 mm, and some microstructures in the second optical element 3 overlap with some microstructures in the first optical element 2 in space.

[0054] In the embodiments of the present application, it can be understood that the microstructure in the first optical element 2 corresponds to the aforementioned first microstructure 21, and the microstructure in the second optical element 3 corresponds to the aforementioned second microstructure 31.

[0055] It should be noted that the first optical element 2 based on the scattering effect is adjacently arranged to the central region C, and can form a scattering functional region near the central region C, thereby quickly compensating for the peripheral hyperopic defocus. When the eye is in different fixation states, especially when looking at near objects or during eye rotation, the imaging situation in the peripheral visual field has an important impact on vision and eye health. Placing the scattering functional region close to the central region C can more quickly compensate for the hyperopic defocus of the peripheral retina; because in these situations, the peripheral retina is more likely to exhibit hyperopic defocus, and the scattering functional region scatters light, enabling the peripheral light to be more accurately focused on or in front of the retina, thereby effectively reducing peripheral hyperopic defocus and contributing to controlling the growth of the eye axis, which has a positive effect on myopia prevention and control.

[0056] It should also be noted that the central region C is the key region for the eye to obtain clear visual information. Setting the scattering functional region close to the central region C can better cooperate with the visual function of the central region C. In daily visual activities, the eye frequently switches the fixation point between the central region C and the peripheral region D; the scattering functional region is relatively close to the central region C, and can more timely scatter the light during the switching of different fixation points, reducing phenomena such as blurring and double imaging caused by inaccurate light focusing, thereby improving the overall visual quality and enabling the wearer to obtain a clearer and more comfortable visual experience in various visual scenarios.

[0057] It should be emphasized that the radial amplitude range of the scattering functional region formed by the first optical element 2 is 3 mm - 30 mm; the radial amplitude range of the multi-point defocus functional region formed by the second optical element 3 is 5 mm - 45 mm; that is, the multi-point defocus functional region can have a larger amplitude range than the scattering functional region, and the multi-point defocus functional region can be set farther from the central region C relative to the scattering functional region; in other words, the scattering functional region is closer to the central region C than the multi-point defocus functional region. This setting helps to form a smoother optical transition between the central region C and the multi-point defocus functional region. Since the scattering functional region plays a certain buffering and regulating role, from the central region C to the peripheral multi-point defocus functional region, the refraction and scattering changes of light are more continuous and natural. In contrast, if the scattering functional region is far from the central region C, it may lead to obvious optical differences between different functional regions, affecting the visual coherence; while setting the scattering functional region close to the central region C can effectively avoid this situation. Based on this, in the present application, the first optical element 2 and the second optical element 3 are reasonably arranged to make the visual conversion of the eye in different regions smoother, reducing visual fatigue and discomfort.

[0058] In some embodiments, please refer to Figure 5 and Figure 6 , the third optical element 4 includes multiple turns of microstructures, and each turn of microstructures is arranged in a closed ring shape. The curvature of any position along the circumferential direction of each turn of microstructures is consistent. The radial amplitude range of the third optical element 4 is 6 mm - 60 mm, and the width of each turn of microstructures is 0.01 mm - 0.4 mm.

[0059] In the embodiments of the present application, it can be understood that some people are more sensitive to the continuous and annular third microstructure 41. Please refer to Figure 4 , and another part of the population is more sensitive to the discontinuous and dot - matrix - like first microstructure 21 and second microstructure 31; the optical module of the present application can simultaneously include the first optical element 2, the second optical element 3, and the third optical element 4, integrating the scattering effect, the multi - point defocusing technology, and the cylindrical lens structure, so as to cover the distribution rules of fundus visual function cells of various populations, and thus provide multiple optical signal stimulations in the high - density visual function cell area near the center of the light spot as much as possible, improving the myopia prevention and control effect.

[0060] In summary, compared with the prior art, the present application has the following beneficial effects:

[0061] 1. The present application provides a specific optical module on the basis of the lens body. This optical module can cover the first optical element 2, the second optical element 3, and the third optical element 4, and the first optical element 2, the second optical element 3, and the third optical element 4 correspond to the scattering effect, the multi - point defocusing technology, and the cylindrical lens structure respectively; the scattering effect, defocus control, and cylindrical lens structure have different directivities during use, and the optical signal stimulations provided by the three have different effects on different populations. The optical lens of the present application can correspond to the distribution rules of fundus visual function cells of various populations by integrating different optical devices, adapt to different populations, and provide multiple optical signal stimulations for lens wearers.

[0062] 2. The optical module of the present application integrates optical devices with different functions. The first optical element 2 can provide contrast control of the light reaching the fundus, the second optical element 3 can perform defocus control, and the third optical element 4 can perform phase difference control; and when selecting the first optical element 2, the second optical element 3, and the third optical element 4, a reasonable position arrangement is made based on the defocus amount of their own microstructures relative to the lens body, so that the combination addition of the optical devices can achieve an ideal effect.

[0063] 3. In the present application, the first optical element 2 and the second optical element 3 are reasonably arranged. Relative to the multi-point defocus functional area formed by the second optical element 3, the scattering functional area formed by the first optical element 2 is closer to the central area C, so that a smooth optical transition can be formed between the central area C and the multi-point defocus functional area. The scattering functional area plays a certain buffering and adjusting role. From the central area C to the peripheral multi-point defocus functional area, the refraction and scattering changes of light are more continuous and natural, so that the visual conversion of the eyes in different areas is smoother, reducing visual fatigue and discomfort.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An optical lens, characterized in that: include: A lens body (1), wherein the side of the lens body (1) comprises a convex surface (A) and a concave surface (B) opposite to each other; and An optical module, the optical module comprising at least two of a first optical element (2), a second optical element (3) and a third optical element (4) connected to the side of the lens body (1), and having distribution characteristics corresponding to the distribution of visual function cells in the fundus of a lens wearer to provide multiple optical signal stimulations; Wherein, the first optical component (2) is an optical device with a scattering effect, the second optical component (3) is an optical device with multi-point defocusing, and the third optical component (4) is a continuous cylindrical structure; The arrangement position of any one of the first optical element (2), the second optical element (3) and the third optical element (4) relative to the lens body (1) and the defocus amount of its own microstructure have a preset mapping relationship.

2. The optical lens according to claim 1, characterized in that: When the defocus amount of the microstructure of the first optical component (2) itself is a positive value, the first optical component (2) is located on the concave surface (B) of the lens body (1); when the defocus amount of the microstructure of the first optical component (2) itself is a negative value, the first optical component (2) is located on the convex surface (A) of the lens body (1).

3. The optical lens according to claim 1, wherein: The lens body (1) is composed of a polymer material including a resin, and a portion of the structure of any one of the first optical component (2), the second optical component (3) and the third optical component (4) is embedded in the lens body (1), and another portion of the structure protrudes from the side of the lens body (1).

4. The optical lens according to any one of claims 1 to 3, characterized in that: The optical module consists of the first optical component (2), the second optical component (3) and the third optical component (4); the first optical component (2), the second optical component (3) and the third optical component (4) are all arranged in multiple circles.

5. The optical lens according to claim 4, characterized in that: At least two of the first optical component (2), the second optical component (3) and the third optical component (4) located on the same side of the lens body (1) partially overlap within the plane of the lens body (1).

6. The optical lens according to claim 5, characterized in that: The lens body comprises a central area (C) and a peripheral area (D) located outside the central area (C); the first optical element (2), the second optical element (3) and the third optical element (4) are all located in the peripheral area (D); and the central area (C) corresponds to the macular area of ​​the eye of the lens wearer.

7. The optical lens according to claim 6, characterized in that: The first optical component (2) and the second optical component (3) are both located on the convex surface (A) of the lens body (1), and the third optical component (4) is located on the concave surface (B) of the lens body (1).

8. The optical lens according to claim 6, characterized in that: The plurality of microstructures in the first optical element (2) are distributed in an array, the first optical element (2) is adjacent to the central area (C) and has a radial width ranging from 3 mm to 30 mm; the radial size range of a single microstructure in the first optical element (2) and the second optical element (3) is both 0.01 mm to 0.4 mm.

9. The optical lens according to claim 6, characterized in that: The plurality of microstructures in the second optical element (3) are distributed in an array with a radial width ranging from 5 mm to 45 mm, and some of the microstructures in the second optical element (3) and some of the microstructures in the first optical element (2) overlap with each other in space.

10. The optical lens according to claim 6, characterized in that: The third optical element (4) comprises a plurality of circles of microstructures and each circle of microstructures is arranged in a closed ring shape. The curvature of each circle of microstructures at any position along its own circumference is consistent. The radial width range of the third optical element (4) is 6 mm-60 mm, and the width of each circle of microstructures is 0.01 mm-0.4 mm.

Images