Optical lens

Abstract

Provided in the present application is an optical lens, relating to the field of myopia prevention and control. The optical lens comprises a lens body and an optical module; side portions of the lens body include a convex surface and a concave surface which are opposite to one another; the optical module comprises at least two of a first optical element, a second optical element, and a third optical element which are connected to the side portions of the lens body, and has distribution features corresponding to the distribution of visual function cells on the ocular fundus of a lens wearer so as to provide multiple optical signal stimuli; the first optical element is an optical device having a scattering effect, the second optical element is a multi-point defocusing optical device, and the third optical element exhibits a continuous cylindrical lens structure. The optical lens of the present application integrates a scattering effect, multi-point defocusing technology, and a cylindrical lens structure; the optical lens can correspond to the ocular fundus visual function cell distribution patterns of various groups of people and provide multiple optical signal stimuli in a high-density visual function cell region close to the center of a light spot, allowing the lens to be adapted to different groups of people and improving a myopia prevention and control effect.

Description

Optical lens TECHNICAL FIELD

[0001] The present application relates to the technical field of myopia prevention and control, in particular to an optical lens.

[0002] BACKGROUND

[0003] Myopia prevention and control lenses are special lenses designed to slow down the progression of myopia. Through special optical design, such as peripheral defocus design, the peripheral light is focused in front of the retina, forming a myopic defocus signal to stimulate the accommodation function of the eye, 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 make peripheral images form in front of the retina, interfering with the elongation trend of the eye axis; progressive multifocal lenses meet the needs of viewing objects at different distances through multiple focal point regions on a lens, thereby relieving visual fatigue.

[0004] However, due to the differences in the distribution characteristics of the ocular fundus visual function cells of different populations and the sensitivity of different populations to various types of optical signal stimulation, existing myopia prevention and control lenses can usually only adapt to a small part of specific population, and the myopia prevention and control effect of a myopia prevention and control lens is limited to a small part of population, and the myopia prevention and control lenses have poor universality.

[0005] SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides an optical lens, which solves the problem of large limitations in the population adaptation range of existing myopia prevention and control lenses.

[0007] To achieve the above purpose, the present application is implemented by the following technical solutions:

[0008] The present application provides an optical lens, which includes a lens body and an optical module; the side of the lens body includes opposite convex and concave surfaces; the optical module includes at least two of a first optical component, a second optical component and a third optical component connected to the side of the lens body, and the distribution characteristics correspond to the distribution of the ocular fundus visual function cells of the lens wearer to provide multiple optical signal stimulation.

[0009] Specifically, the first optical component is an optical device with scattering effect, the second optical component is a multi-point defocus optical device, and the third optical component is a continuous cylindrical structure; the arrangement position of any one of the first optical component, the second optical component and the third optical component relative to the lens body has a preset mapping relationship with the defocus amount of its own microstructure.

[0010] In some embodiments, the first optical element is located on a concave surface of the lens body when the defocus amount of the first optical element itself microstructure is positive, and the first optical element is located on a convex surface of the lens body when the defocus amount of the first optical element itself microstructure is negative.

[0011] In some embodiments, the lens body is composed of a high molecular 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 another part of the structure protrudes from the side of the lens body.

[0012] 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 arranged in multiple circles.

[0013] 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 in the width of the lens body.

[0014] In some embodiments, the lens body includes a central region and a peripheral region outside the central region, and the first optical element, the second optical element and the third optical element are located in the peripheral region, and the central region corresponds to the macular region of the eye of the lens wearer.

[0015] In some embodiments, 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.

[0016] In some embodiments, a plurality of microstructure arrays are distributed in the first optical element, the first optical element is adjacent to the central region and has a radial width range of 3mm-30mm, and the radial size of a single microstructure in the first optical element and the second optical element ranges from 0.01mm to 0.4mm.

[0017] In some embodiments, a plurality of microstructure arrays are distributed in the second optical element and have a radial width range of 5mm-45mm, and part of the microstructures in the second optical element and part of the microstructures in the first optical element overlap in space.

[0018] In some embodiments, the third optical element includes multiple circles of microstructures, each circle of microstructure is arranged in a closed ring shape, the curvature of any position of the each circle of microstructure along the circumferential direction is consistent, the radial width range of the third optical element is 6mm-60mm, and the width of the each circle of microstructure is 0.01mm-0.4mm.

[0019] The application provides an optical lens. Compared with the prior art, the following beneficial effects are achieved:

[0020] The application sets a specific optical module on the basis of the lens body, the optical module covers at least two of the first optical piece, the second optical piece and the third optical piece, that is, the first optical piece, the second optical piece and the third optical piece can be used in different combinations according to cost and needs, and the first optical piece, the second optical piece and the third optical piece are reasonably arranged in position relative to the lens body based on the defocus amount of the microstructure thereof when selected. The first optical piece, the second optical piece and the third optical piece are divided into corresponding scattering effect, multi-point defocus technology and cylindrical structure, the optical module of the application integrates optical devices with different functions, the first optical piece can provide contrast control of light to the fundus, the second optical piece can perform defocus control, and the third optical piece performs phase difference control; by integrating different optical devices, the optical lens of the application can correspond to the fundus visual function cells of various people, adapt to different people, provide multiple optical signal stimulation for lens wearers under the premise of ensuring visual quality, and still provide ideal myopia prevention and control effect when facing different specific people.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0023] Fig. 1 is a perspective view of an optical lens according to an embodiment of the application;

[0024] Fig. 2 is an enlarged view of a portion of Fig. 1;

[0025] Fig. 3 is a side view of an optical lens according to an embodiment of the application;

[0026] Fig. 4 is a partial structure view of Fig. 3;

[0027] Fig. 5 is another perspective view of an optical lens according to an embodiment of the application;

[0028] Fig. 6 is a partial structure view of Fig. 5.

[0029] BRIEF DESCRIPTION OF DRAWINGS: lens body 1; first optical piece 2; second optical piece 3; third optical piece 4; first microstructure 21; second microstructure 31; third microstructure 41; convex surface A; concave surface B; central region C; peripheral region D.

[0030] DETAILED DESCRIPTION

[0031] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0032] It should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Also, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that comprises a list of elements does not only include those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0033] The embodiments of the present application provide an optical lens, which solves the problem of large limitation of population adaptation range of existing myopia prevention and control lenses.

[0034] The technical solutions in the embodiments of the present application have the following general ideas to solve the above technical problems:

[0035] Myopia prevention and control lenses are a kind of special lenses aiming to slow down the development of myopia. The lenses form a myopic defocus signal by special optical design, such as peripheral defocus design, so that the peripheral light is focused in front of the retina, stimulates the accommodation function of the eye, thereby inhibits the axial elongation, and achieves 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 peripheral images be imaged in front of the retina, and intervene the elongation trend of the eye axis. Progressive multifocal lenses meet the needs of viewing objects at different distances through multiple focal point regions on a lens, and then relieve visual fatigue. However, due to the differences in the distribution characteristics of the fundus visual function cells of different populations, and the differences in the sensitivity of different populations to various types of optical signal stimulation, the existing myopia prevention and control lenses can usually only adapt to a small part of specific population, and the myopia prevention and control lenses have poor universality.

[0036] In order to better understand the above technical solutions, the above technical solutions will be described in detail in combination with the drawings of the specification and specific embodiments.

[0037] Firstly, an optical lens provided by an embodiment of the present application is introduced as follows.

[0038] The optical lens provided by the embodiment of the present application, please refer to FIG. 1-FIG. 6, the optical lens comprises a lens body 1 and an optical module; the side of the lens body 1 comprises opposite convex surface A and concave surface B; the optical module comprises at least two of the first optical member 2, the second optical member 3 and the third optical member 4 connected to the side of the lens body 1, and the distribution characteristics correspond to the distribution of the fundus visual function cells of the lens wearer to provide multiple optical signal stimulation.

[0039] Specifically, the first optical member 2 is an optical device with scattering effect, the second optical member 3 is a multi-point defocus optical device, and the third optical member 4 is a continuous cylindrical structure; the arrangement position of any one of the first optical member 2, the second optical member 3 and the third optical member 4 relative to the lens body 1 has a preset mapping relationship with the defocus amount of its own microstructure.

[0040] In the embodiment of the present application, it can be understood that the present application sets a specific optical module on the basis of the lens body 1, which covers at least two of the first optical member 2, the second optical member 3 and the third optical member 4, that is, the first optical member 2, the second optical member 3 and the third optical member 4 can be used in different combinations according to cost and needs, the first optical member 2, the second optical member 3 and the third optical member 4 are divided into corresponding scattering effect, multi-point defocus technology and cylindrical structure, and the optical module of the present application integrates optical devices with different functions.

[0041] Specifically, in the first aspect, the first optical member 2 can provide contrast control of light to the fundus based on scattering effect. It can be understood that first, scattering can make light evenly distributed. When light enters the eye, it will scatter in the intraocular medium. The scattering phenomenon will make the originally concentrated light diverge in all directions, so as to be more evenly distributed on the fundus. For example, when external light enters the intraocular medium through the pupil, part of the light will be scattered by the intraocular refractive medium such as the lens, vitreous body, etc. This scattering effect is like scattering a concentrated light, so that the light is no longer limited to a specific propagation direction, but can more widely illuminate each area of the fundus. The originally existing strong contrast areas will have reduced contrast due to the uniform distribution of light, making the overall illumination of the fundus more uniform.

[0042] Secondly, the light received by the fundus includes direct light and scattered light. The direct light refers to the light directly emitted from an object and propagating along a straight line to the fundus, which carries clear image information of the object. However, the direct light can be affected by absorption and refraction of the intraocular medium during propagation, resulting in weakening of the light intensity in some areas. The scattered light is the light reaching the fundus after scattering in the intraocular medium. Although the scattered light cannot directly form a clear image, it can serve as a kind of background light to supplement and enhance the contrast of the image formed by the direct light. When the image formed by the direct light is dark, the scattered light can provide additional illumination, making the details of the image easier to be distinguished. When the direct light is strong, the scattered light can play a certain buffering role to avoid the image being too bright and losing details, thereby achieving the adjustment of the contrast of the fundus light.

[0043] Further, the scattering degree of light of different wavelengths in the eye is different, which also helps to control the contrast of the fundus light. Generally, light of shorter wavelength is more likely to scatter, while light of longer wavelength scatters relatively less. In the normal vision process, this scattering characteristic can make the light received by the fundus have a certain spectral distribution. For example, when the external light contains multiple wavelengths, the scattering of blue light can provide a certain degree of background lighting for the environment around the fundus, while red light and other long-wavelength light can more effectively transmit the details of the object. After the first optical member 2 is set, through the combined action of scattering and direct light of different wavelengths, the fundus can form an image with appropriate contrast, which can not only 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.

[0044] In a second aspect, the second optical element 3 can form multiple defocus regions on the lens to control the defocus state of the eye. It can be understood that, when viewing an object, the light is focused on the retina to form a clear image for a normal eye. However, for a myopic patient, the eye axis is too long or the refractive power of the cornea, lens and other refractive systems is too strong, so that the parallel light is focused in front of the retina, and the imaging on the retina becomes blurred. Since the growth and development of the eye is closely related to the visual signals received by the retina, when the peripheral region of the retina is in a hyperopic defocus state, it will stimulate the further growth of the eye axis, thereby causing the development of myopia. Based on the multi-point defocus, the second optical element 3 is specially designed to form a myopic defocus in the peripheral region of the retina to inhibit the growth of the eye axis and further control the development of myopia. Referring to FIGS. 2 and 4, the second optical element 3 is distributed with a large number of tiny second microstructures 31, which will refract and scatter the light to different degrees when the light passes through, thereby forming multiple discrete myopic defocus regions on the retina. In addition, the required defocus control degree is different at different gaze distances and angles, and the second optical element 3 based on multi-point defocus control has a certain dynamic defocus adjustment capability.

[0045] In a third aspect, the third optical element 4 can control the phase difference based on the refractive characteristics of light rays in different directions and the optimization effect on the optical system of the eyeball. It can be understood that, first, the astigmatism of the eye will cause the light rays to not be focused on the same point, but to form two front and back focal lines, thereby generating a phase difference and affecting the clarity of vision. The cylinder has the ability to change the refraction of light rays in a specific direction, and when the axial direction corresponds to the astigmatism axis, it can increase or decrease the refractive power in that direction, so that the light rays in different directions can be refocused on the retina, reducing the phase difference caused by astigmatism. Second, the cylinder structure can adjust the overall refractive state of the eyeball by changing the propagation path of the light rays, thereby controlling the phase difference. Finally, in addition to the phase difference caused by astigmatism and conventional refractive errors, the eye may also have some high-order phase differences, such as coma, spherical aberration, etc. The cylinder structure can compensate and correct these high-order phase differences to a certain extent through special design and optimization.

[0046] Therefore, the scattering effect, defocus control and cylinder structure have different directivity when used, and the effects of the optical signals provided by the three on different groups of people are different. The optical lens of the present application integrates different optical devices to combine at least two of the scattering effect, defocus control and cylinder structure, which can correspond to the fundus visual function cells of multiple groups of people, adapt to different groups of people, provide multiple optical signal stimulations for the lens wearers on the premise of ensuring the visual quality, and still provide an ideal myopia prevention and control effect when facing different specific groups of people.

[0047] In some embodiments, when the defocus amount 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 first optical element 2 is negative, the first optical element 2 is located on the convex surface A of the lens body 1.

[0048] In the embodiments of the present application, it can be understood that the first optical element 2, the second optical element 3 and the third optical element 4 are reasonably arranged in position based on the defocus amount of their own microstructures relative to the lens body when selected, and the mapping relationship between the arrangement position 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 consistent with that of the first optical element 2. That is, when different optical devices are arranged on the lens body 1, when the defocus amount of the optical device itself is positive, it is arranged on the concave surface B; when the defocus amount of the optical device itself is negative, it is arranged on the convex surface A.

[0049] It should be noted that a negative defocus amount means that the light rays need to be divergent to achieve a specific optical effect, such as simulating myopic defocus to control myopia development, etc. Compared with arranging negative defocus microstructures on the concave surface B or other positions, the convex surface A is more conducive to the initial divergence of light rays. In addition, arranging negative defocus microstructures on the convex surface A helps better control the propagation direction and angle of light rays, reducing aberration and distortion. After the light rays enter from the convex surface A and pass through the action of the negative defocus microstructure, they can be more regularly convergent or divergent, making the imaging clearer and more accurate, avoiding problems such as blurring and deformation caused by irregular refraction of light rays.

[0050] In some embodiments, referring to FIGS. 1-6, the lens body 1 is composed of a high molecular material including resin, and 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 another 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 stable whole, but 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.

[0051] In some embodiments, referring to FIGS. 1-6, the optical module is composed of 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 are 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 in the width of the lens body 1.

[0052] 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 corresponding to one cylindrical structure; wherein the dioptric power of the second microstructure 31 and the third microstructure 41 can be positive or negative.

[0053] It should be noted that the first optical element 2, the second optical element 3 and the third optical element 4 are reasonably selected based on the positive or negative situation of the defocus amount of the first optical element 2, the second optical element 3 and the third optical element 4, and 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 be overlapped to superimpose different optical stimulation signals.

[0054] In one example, referring to FIG. 4, the first microstructure 21 and the second microstructure 31 can be spherical or ellipsoidal or polyhedral; it can be understood that since the human eye cells are polyhedral, in order to improve the effect of the lens on the multiple optical signal superposition stimulation of the human eye cells, the first microstructure 21 and the second microstructure 31 can be preferably polyhedral.

[0055] In some embodiments, referring to FIGS. 1, 3, 5 and 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 macular region of the eyes of the lens wearer. It can be understood that the peripheral region D and the central region C are adjacent to each other, and the central region C is not provided with additional optical devices to ensure the clear vision of the lens wearer, that is, the first optical element 2, the second optical element 3 and the third optical element 4 are all arranged in the peripheral region D when arranged.

[0056] 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 the lens structure shown in FIGS. 1-6 corresponds to the case that the defocus amount of the first optical element 2 and the second optical element 3 is negative, and the defocus amount of the third optical element 4 is positive.

[0057] In some embodiments, referring to Figs. 1-4, the plurality of microstructure arrays in the first optical element 2 are distributed in a radial range of 3-30 mm adjacent to the central region C, and the radial size of each microstructure in the first optical element 2 and the second optical element 3 ranges from 0.01 mm to 0.4 mm. The plurality of microstructure arrays in the second optical element 3 are distributed in a radial range of 5-45 mm, and some of the microstructures in the second optical element 3 overlap with some of the microstructures in the first optical element 2 in space.

[0058] In the embodiments of the present application, it can be understood that the microstructures in the first optical element 2 correspond to the aforementioned first microstructures 21, and the microstructures in the second optical element 3 correspond to the aforementioned second microstructures 31.

[0059] It should be noted that the first optical element 2 based on the scattering effect is arranged adjacent to the central region C, which can form a scattering functional area near the central region C, thereby quickly compensating for peripheral hyperopic defocus. When the eye is in different gaze states, especially when looking at near objects or performing eye rotation, the imaging conditions of the peripheral field of view have an important influence on vision and eye health. By placing the scattering functional area close to the central region C, the peripheral retina can be more quickly compensated for hyperopic defocus. Because in these cases, the peripheral retina is more prone to hyperopic defocus, and the scattering functional area scatters light to make peripheral light more accurately focus on the retina or in front of the retina, thereby effectively reducing peripheral hyperopic defocus, which helps to control axial length growth and has a positive effect on myopia prevention and control.

[0060] It should also be noted that the central region C is a key area for the eye to obtain clear visual information, and the scattering functional area is arranged close to the central region C, which can better coordinate with the visual function of the central region C. In daily visual activities, the eye will frequently switch the gaze point between the central region C and the peripheral region D. The scattering functional area is close to the central region C, which can more timely scatter light when switching between different gaze points, reduce the blur and ghosting phenomena caused by inaccurate focusing of light, thereby improving the overall visual quality and enabling the wearer to obtain clearer and more comfortable visual experience in various visual scenarios.

[0061] It is emphasized that the radial range of the scattering function area formed by the first optical member 2 is 3mm-30mm; the radial range of the multi-point defocus function area formed by the second optical member 3 is 5mm-45mm; that is, the radial range of the multi-point defocus function area can be larger than that of the scattering function area, and the multi-point defocus function area can be set farther from the center area C than the scattering function area; in other words, the scattering function area is closer to the center area C than the multi-point defocus function area. Such a setting helps to form a smoother optical transition between the center area C and the multi-point defocus function area, because the scattering function area plays a certain buffering and adjusting role, and the refraction and scattering of light change more continuously and naturally from the center area C to the multi-point defocus function area at the periphery. In contrast, if the scattering function area is farther from the center area C, it may cause obvious optical differences between different function areas, affecting the continuity of vision; and setting the scattering function area close to the center area C can effectively avoid such a situation. Based on this, the first optical member 2 and the second optical member 3 are reasonably arranged in the present application to make the visual transition of the eye in different areas smoother, reducing visual fatigue and discomfort.

[0062] In some embodiments, referring to FIGS. 5 and 6, the third optical member 4 includes multiple rings of microstructures, and each ring of microstructures is arranged in a closed ring shape, and the curvature of each ring of microstructures is consistent at any position along the circumferential direction thereof, and the radial range of the third optical member 4 is 6mm-60mm, and the width of each ring of microstructures is 0.01mm-0.4mm.

[0063] In the embodiments of the present application, it can be understood that part of the population is more sensitive to the continuous and ring-shaped third microstructure 41, referring to FIG. 4, and another part of the population is more sensitive to the discontinuous and dot array type first microstructure 21 and second microstructure 31; the optical module of the present application can simultaneously include the first optical member 2, the second optical member 3 and the third optical member 4, integrating scattering effect, multi-point defocus technology and cylindrical structure, thereby covering the distribution regularity of the fundus visual function cells of multiple populations, thereby providing multiple optical signal stimulation in the high-density visual function cell area close to the light spot center as much as possible, improving the effect of myopia prevention and control.

[0064] In summary, compared with the prior art, the present application has the following beneficial effects:

[0065] The optical module of the present application integrates different optical devices, the first optical part 2 can provide contrast control of light to the fundus, the second optical part 3 can perform defocus control, and the third optical part 4 performs phase difference control; and the first optical part 2, the second optical part 3 and the third optical part 4 are reasonably arranged in position based on the defocus amount of their own microstructure relative to the lens body when selected, so that the combination of optical devices can achieve the desired effect.

[0066] 2、The optical module of the present application integrates different optical devices, the first optical part 2 can provide contrast control of light to the fundus, the second optical part 3 can perform defocus control, and the third optical part 4 performs phase difference control; and the first optical part 2, the second optical part 3 and the third optical part 4 are reasonably arranged in position based on the defocus amount of their own microstructure relative to the lens body when selected, so that the combination of optical devices can achieve the desired effect.

[0067] 3、The first optical part 2 and the second optical part 3 are reasonably arranged in the present application, the scattering function area formed by the first optical part 2 is closer to the center area C than the multi-point defocus function area formed by the second optical part 3, so that a smooth optical transition can be formed between the center area C and the multi-point defocus function area, the scattering function area plays a certain buffering and adjusting role, from the center area C to the multi-point defocus function area in the periphery, the refraction and scattering of light change more continuously and naturally, so that the visual transition of the eye in different areas is more smooth, and visual fatigue and discomfort are reduced.

[0068] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part 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 application.

Claims

1. An optical lens, characterized in that, Comprise: a lens body (1), the side of the lens body (1) comprising opposite convex (A) and concave (B); and an optical module, the optical module comprising at least two of the first optical element (2), the second optical element (3) and the third optical element (4) connected to the side of the lens body (1), and the distribution characteristics correspond to the distribution of the eye fundus visual function cells of the lens wearer to provide multiple optical signal stimulation; wherein the first optical element (2) is an optical device with scattering effect, the second optical element (3) is a multi-point defocus optical device, and the third optical element (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) has a preset mapping relationship with the defocus amount of its own microstructure.

2. The optical lens of claim 1, wherein, In the case that the defocus amount of the first optical element (2) itself microstructure is positive, the first optical element (2) is located on the concave (B) of the lens body (1); in the case that the defocus amount of the first optical element (2) itself microstructure is negative, the first optical element (2) is located on the convex (A) of the lens body (1).

3. The optical lens of claim 1, wherein, The lens body (1) is composed of a high molecular material including resin, 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).

4. The optical lens according to any one of claims 1 to 3, characterized in that, The optical module is composed of 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) are arranged in multiple circles.

5. The optical lens of claim 4, wherein, 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 in the width of the lens body (1).

6. The optical lens of claim 5, wherein, The lens body comprises a central region (C) and a peripheral region (D) located outside the central region (C), and the first optical element (2), the second optical element (3) and the third optical element (4) are located in the peripheral region (D), and the central region (C) corresponds to the macular area of the lens wearer's eye.

7. The optical lens of claim 6, wherein, The first optical element (2) and the second optical element (3) are located on the convex (A) of the lens body (1), and the third optical element (4) is located on the concave (B) of the lens body (1).

8. The optical lens of claim 6, wherein, The first optical element (2) has a plurality of microstructure arrays distributed, the first optical element (2) is adjacent to the central region (C) and has a radial width range of 3mm-30mm; the radial size of a single microstructure in the first optical element (2) and the second optical element (3) ranges from 0.01mm to 0.4mm.

9. The optical lens of claim 6, wherein, The multiple microstructure arrays in the second optical member (3) are distributed and have a radial extent of 5-45 mm, and some of the microstructures in the second optical member (3) spatially overlap with some of the microstructures in the first optical member (2).

10. The optical lens of claim 6, wherein, The third optical member (4) comprises multiple rings of microstructures, and each ring of microstructures is arranged in a closed loop, the curvature of the microstructures at any position along the circumferential direction of the ring is uniform, the radial extent of the third optical member (4) is 6-60 mm, and the width of each ring of microstructures is 0.01-0.4 mm.

Images