Optical lens

Abstract

This invention provides an optical lens. The optical lens includes an outer surface, an inner surface, an optical region, and an outer ring region. The inner surface is located on the side of the lens closer to the eye relative to the outer surface. The optical region includes a center of the optical lens. The outer ring region surrounds the optical region, wherein the outer surface of the outer ring region includes a nanoporous structure, and a refractive layer is formed in the nanoporous structure.

Description

Technical Field

[0001] This invention relates to an optical lens. More specifically, this invention relates to an optical lens that reduces contrast, adjusts positive spherical aberration of images, and allows near-red light to pass through through a nanopore structure. Background Technology

[0002] In recent years, the number of people with myopia worldwide has increased rapidly, and myopia has become one of the main causes of vision impairment. The increase in axial length is the primary reason for the increase in myopia. In current ophthalmology, the increase in axial length is irreversible, and it carries the risk of developing ocular complications (such as choroidal degeneration, retinal degeneration, retinal detachment, glaucoma, and cataracts). Therefore, slowing down the rate of axial length increase has become an important method for controlling myopia.

[0003] One theory of retinal contrast suggests that when the contrast of light received by the cone cells of the retina is too high, it stimulates the growth of the axial length of the eye, thereby worsening myopia. Currently, there are technologies on the market that control myopia by reducing retinal contrast, which weakens the signals received by the retina and thus slows down the growth of the axial length of the eye. However, this myopia control technology only considers a single optical characteristic (i.e., contrast) and does not consider other optical characteristics (such as aberrations). Therefore, it cannot simultaneously control myopia while taking into account the effects of other optical characteristics.

[0004] Therefore, it is particularly important to provide a technology that can control myopia while taking into account different optical properties.

[0005] The content of this utility model

[0006] To overcome the aforementioned technical problems, this invention provides an optical lens. The optical lens includes an outer surface, an inner surface, an optical region, and an outer ring region. The inner surface is located on the side of the lens closer to the eye relative to the outer surface. The optical region includes a center of the optical lens. The outer ring region surrounds the optical region, wherein the outer surface of the outer ring region includes a nanoporous structure, and a refractive layer is formed in the nanoporous structure.

[0007] As described above, the optical lens of this invention forms a nanopore structure around the center of the optical lens on the outer surface of the outer ring region, and a refractive layer is formed on the nanopore structure. The nanopore structure and refractive layer can significantly influence the scattering, refraction, and diffraction behavior of light, thereby changing the contrast, aberrations, and controlling the wavelength of transmittable light. Therefore, the optical lens of this invention can effectively reduce the contrast of the image formed through the optical lens, adjust the spherical aberration of the image formed through the optical lens, and allow near-red light to pass through, through the nanopore structure and refractive layer. Compared with the prior art, this invention can simultaneously slow down the growth of the axial length of the eye through the above three optical properties, thereby effectively controlling myopia.

[0008] The above description is not intended to limit the scope of this utility model, but merely to provide a general overview of the technical problems it can solve, the technical means it can employ, and the technical effects it can achieve, so as to enable those skilled in the art to gain a preliminary understanding of this utility model. The following will further illustrate various embodiments of this utility model with examples, and describe the detailed technology and implementation methods of this utility model in conjunction with the accompanying drawings, so that those skilled in the art can understand the technical details of the claimed utility model. Attached Figure Description

[0009] Figure 1 A schematic diagram of an optical lens according to certain embodiments of the present invention is shown;

[0010] Figure 2 Schematic diagrams illustrating nanoporous structures according to certain embodiments of the present invention are shown;

[0011] Figure 3 A schematic diagram illustrating the refractive layer of some embodiments of the present invention is shown;

[0012] Figure 4 A schematic diagram illustrating the arrangement of nanopores in certain embodiments of the present invention is shown;

[0013] Figure 5 Schematic diagrams illustrating nanopore arrangements in certain other embodiments of the present invention are shown;

[0014] Figure 6 A schematic diagram illustrating the edge region of an optical lens according to certain embodiments of the present invention is shown;

[0015] Figure 7 A schematic diagram illustrating the temporal reinforcement region of an optical lens according to certain embodiments of the present invention is shown; and

[0016] Figure 8 A schematic diagram illustrating the optical regions of the inner and outer surfaces of certain embodiments of the present invention is shown.

[0017] Symbol Explanation

[0018] 1: Optical lens; 10: Outer surface; 12: Inner surface; 100: Nanopore structure; 101A: First nanopore; 102A: Second nanopore; 120: Refractive layer; C1: Center; D: Aperture; P: Aperture spacing; H: Aperture depth; D1, D2: Diameter; OZ: Optical zone; PZ: Outer ring zone; T1: Transition zone; E1: Outer edge zone; E2: Edge zone; T2: Temporal reinforcement zone; 20: Substrate; 30: Soft template. Detailed Implementation

[0019] The following will explain the content of the claimed utility model through embodiments. The embodiments of this utility model are not intended to limit its implementation to any specific environment, application, or special method as described in the embodiments. Therefore, the description of the embodiments is for illustrative purposes only and is not intended to limit the scope of this utility model, and the scope claimed is determined by the claims. Furthermore, in the following embodiments and drawings, elements not directly related to this utility model have been omitted and are not shown, and the dimensional relationships between the elements in the following drawings are for ease of understanding only and are not intended to limit the actual scale.

[0020] The terminology described herein is for the convenience of describing embodiments only and is not intended to limit the scope of the claimed invention. Unless specifically stated otherwise, the singular "a" or "an" shall be considered to include the plural. Terms such as "comprising," "having," etc., are used to specifically describe the presence of features, integers, steps, operations, elements, components, and / or groups stated thereafter, but do not exclude the presence or addition of one or more other additional features, integers, steps, operations, elements, components, and / or groups, etc. The term "and / or" is used to indicate any or all combinations of one or more related enumerated items. Terms such as "first," "second," etc., used to describe elements are not intended to limit the described elements, but merely to distinguish them. Thus, for example, a first element may also be named a second element without departing from the spirit or scope of the claimed invention.

[0021] Figure 1 A schematic diagram of an optical lens 1 according to certain embodiments of the present invention is illustrated. This document does not limit the type of optical lens 1, but may include, for example, but not limited to, eyeglasses, soft contact lenses, rigid contact lenses, orthokeratology lenses, or other high-precision optical instruments. Figure 1 The content shown is only for illustrating the embodiments of this utility model, and is not intended to limit the scope of protection of this utility model.

[0022] like Figure 1As shown, the optical lens 1 may include an outer surface 10, an inner surface 12, an optical region OZ, and an outer ring region PZ. The outer surface 10 and inner surface 12 refer to opposite front and back surfaces of the optical lens 1, while the optical region OZ and outer ring region PZ refer to two regions of the optical lens 1 on a plane. The outer surface 10 is located on the side furthest from the eye relative to the inner surface 12, while the inner surface 12 is located on the side closer to the eye relative to the outer surface 10. If the optical lens 1 is a contact lens (including soft and rigid contact lenses), the inner surface 12 can be used to contact the cornea of ​​the eye. The optical region OZ may include the center C1 of the optical lens 1 (i.e., corresponding to the pupil of the eye) and can be used to provide general optical functions (e.g., refractive correction). The outer ring region PZ may be disposed in the peripheral region of the optical lens 1 to surround the optical region OZ, and the outer surface 10 of the outer ring region PZ may include a nanoporous structure 100. In addition, the nanopore structure 100 includes a plurality of nanopores, and a refractive layer 120 may be formed in each of the nanopores of the nanopore structure 100. The refractive layer 120 can enable Mie-like resonances and guided-mode resonances for light of a specific wavelength (approximately 600 nm to 700 nm), thereby enhancing the penetration of near-red light.

[0023] It should be noted that if the pore size D of the nanopore in the nanopore structure 100 is greater than 150 nanometers, it will facilitate the transmission of red light (wavelength approximately 650 nanometers); if the pore size D is less than 100 nanometers, it will dominate scattering and inhibit red light transmission. Furthermore, a smaller pore size D (less than λ) can lead to Rayleigh scattering, with the scattering intensity proportional to λ. -4 The ratio of scattering intensity to the fourth power of wavelength increases (i.e., scattering intensity is inversely proportional to the fourth power of wavelength), and the non-uniform aperture D causes light to scatter in different directions, thus reducing resolution and contrast. When the aperture D is large enough and densely packed, the material can produce an "optical medium" structure that approximates a change in refractive index, but if the size or density of the nanopores changes too drastically, it will cause aberrations or visual distortion. Furthermore, a regular array of nanopores can lead to structural colors or interference patterns (such as the effect of colored oil films), while a disordered arrangement will cause diffuse light, reducing image quality, but can reduce retinal stimulation (i.e., it can be used for myopia control).

[0024] Figure 2 Schematic diagrams illustrating nanoporous structures of certain embodiments of the present invention are shown. Figure 3 A schematic diagram of the refractive layer is shown, illustrating certain embodiments of the present invention. Figure 2 and Figure 3 The contents shown are merely illustrative of embodiments of the present invention and are not intended to limit the present invention.

[0025] like Figure 2 As shown, the nanopore structure 100 may contain a plurality of nanopores, the pore size D of which is approximately 80 nm to 200 nm, which can be used to control the resonance and transmission of light; the pore spacing P of which is approximately between two wavelengths (2λ) and three wavelengths (3λ) (approximately 1300 nm to 2000 nm), which can be used to control the periodic interference of light; and the pore depth H of which is approximately 300 nm, which can be used to scatter light of a specific frequency. Therefore, the nanopore structure 100 on the outer surface 10 of the outer ring region PZ of the optical lens 1 can simultaneously affect the scattering, refraction, and diffraction behavior of light. In addition, if the optical lens 1 is a contact lens, the nanopore structure 100 can also serve as an oxygen channel, thereby increasing the oxygen permeability of the contact lens.

[0026] In some embodiments, the nanopore structure 100 can be designed using the box-counting fractal method to create non-uniform, controllable fractal dimension-stabilized structures in different regions of the optical lens 1, thereby eliminating moiré interference. Specifically, the box-counting method is a multifractal algorithm. First, a fractal dimension gradient field is created, physiological disorder (consistent with the distribution of retinal neurons) is added, and then the fractal dimension is mapped to porosity to generate the nanopore structure 100. The nanopore structures 100 in different regions are then designed and integrated.

[0027] like Figure 3 As shown, the refractive layer 120 can be formed on the aperture and sidewalls of the nanopore structure 100. The refractive layer 120 can be used to precisely control the imaging contrast of light in the periphery of the retina, and enhance the transmittance of near-red light through resonance, suppress blue and green light (i.e., chromatic aberration filtering effect). It can also generate additional phase delay and multi-layer interference cavity effect through refraction, thereby producing positive spherical aberration of +0.5D to +1.0D (as a depth control). Therefore, the refractive layer 120 can effectively reduce high-frequency contrast, introduce chromatic aberration filtering effect (enhancing near-red light transmission), and introduce positive spherical aberration, thereby suppressing the image sharpness in the periphery of the retina.

[0028] In some embodiments, the refractive layer 120 may be composed of titanium dioxide (TiO) and aluminum oxide (AlO), with titanium dioxide having high refractive index and aluminum oxide having low refractive index. By utilizing the different refractive indices of titanium dioxide and aluminum oxide, optical properties such as contrast, positive spherical aberration, and near-infrared light transmittance can be optimized. Furthermore, the refractive layer 120 can reduce glare by approximately 70%.

[0029] Specifically, after forming a nanopore structure 100 in the outer ring region PZ of the optical lens 1, a high refractive index layer (titanium dioxide) can be deposited on the pore openings and sidewalls of the nanopores in the nanopore structure 100. At this time, the pore size D of the nanopores may be reduced slightly (pore wall thickness increased), which will generate localized field enhancement, making the light focus more concentrated. Next, a low refractive index layer (alumina) is deposited on the nanopores of the nanopore structure 100 as a buffer layer and protective layer. Subsequently, using the same process steps, multiple layers of titanium dioxide and alumina are deposited alternately to form a refractive layer 120 with alternating high and low refractive indices. For example, the thickness of the refractive layer 120 can be 50 nanometers to 200 nanometers, and the transmission and reflection efficiency can be determined according to this thickness.

[0030] By forming a non-periodic nanopore structure 100 and a refractive layer 120 on the outer surface 10 of the outer ring region PZ of the optical lens 1 of this invention, a triple-layered myopia control system can be constructed using subwavelength optical properties. This system precisely reduces the contrast of the peripheral retina, generates positive spherical aberration (i.e., defocus), and enhances the penetration of near-red light (target wavelength range of 570 nm to 700 nm), thereby synergistically inhibiting the growth of the axial length of the eye and effectively controlling the increase in myopia. In addition, since the nanopore structure 10 is not formed on the outer surface 10 of the optical zone OZ, the central visual axis can be avoided, preserving the visual clarity and contour of the central optical zone OZ, maintaining normal visual function, reducing scattering and diffraction in the optical zone OZ, and improving the contrast of the optical zone OZ.

[0031] In some embodiments, a nanoporous structure 100 may also be formed on the outer surface 10 of the optical region OZ of the optical lens 1, and a refractive layer may be formed on the nanoporous structure. The density of the nanoporous structure 100 in the optical region OZ is lower than that in the outer ring region PZ. For example, the density of the nanoporous structure 100 in the optical region OZ may be less than 2%.

[0032] Positive spherical aberration (HOA) is a common type of higher-order aberration in the eye's optical system, and it has a unique and complex impact on visual function during prolonged near work. Studies have shown that HOA induces myopic defocus, mimicking natural optical blur, such as halos in natural scenes, which can suppress excessive eye growth signals. Therefore, generating a defocus signal from positive spherical aberration could directly intervene in axial elongation.

[0033] Regarding "near-red light," research has shown that among visible light, blue light has a relatively short wavelength, and its scattering within the eye's media (especially the lens) is far greater than that of yellow and red light, which have longer wavelengths. This scattering reduces the contrast sensitivity and clarity of retinal imaging. When the image quality received by both eyes decreases due to scattering, the brain's ability to fuse images from both eyes (i.e., image fusion) and accurately judge image depth is challenged, increasing the burden on the binocular imaging system. Exposure to light of specific wavelengths (especially blue light) exacerbates overall visual fatigue (eye strain). When the eyes and brain are "overloaded" due to fatigue, maintaining accurate eye alignment (eye position), stable image fusion, and comfortable binocular single vision becomes difficult. Therefore, enhancing the penetration of near-red light can effectively reduce the visual stress caused by blue light, thereby alleviating overall visual fatigue.

[0034] Figure 4 and Figure 5 A schematic diagram illustrating the arrangement of nanopores in certain embodiments of the present invention is shown. Figure 4 and Figure 5 The dimensions and proportions of the components are for illustration and explanation purposes only, and are not intended to limit the scope of this utility model.

[0035] like Figure 4 As shown, the outer ring region PZ of the optical lens 1 may further include a transition region T1 and an outer edge region E1. The transition region T1 surrounds the optical region OZ, while the outer ring region PZ surrounds the transition region T1. Taking a contact lens with a diameter of 14 mm as an example, the optical region OZ can be a circular area from 0 mm (center C1) to 6 mm, the transition region T1 can be a ring-shaped area from 6 mm to 10 mm, and the outer edge region E1 can be a ring-shaped area from 10 mm to 14 mm. Taking eyeglasses with a diameter of 20 mm or more as another example, the optical region OZ can be a circular area from 0 mm (center C1) to 6-9 mm, the transition region T1 can be a ring-shaped area from 6-9 mm to 14 mm, and the outer edge region E1 can be a ring-shaped area from 14 mm to 20 mm.

[0036] In some embodiments, the nanopore structures 100 of the transition region T1 and the outer edge region E1 can be designed as nanopore structures of different sizes to provide different optical properties. That is, the nanopore structure 100 of the transition region T1 may include a plurality of first nanopores 101A, and the nanopore structure 100 of the outer edge region E1 may include a plurality of second nanopores 102A. Each of the first nanopores 101A has one endpoint, and the first nanopores 101A surround the center C1 and are arranged radially outward with respect to the endpoint (i.e., the endpoints face the opposite direction to the center C1). In addition, each of the second nanopores 102A has two endpoints, and the second nanopores 102A surround the center C1 and are arranged tangentially with respect to the two endpoints (i.e., the two endpoints of the second nanopores 102A are substantially parallel to the endpoints of the first nanopores 101A).

[0037] In some embodiments, the first nanopore 101A may be teardrop-shaped, with a density sparser than the second nanopore 102A. Its major axis may be 80 nm to 150 nm, its minor axis 40 nm to 60 nm, and the ratio of the major axis to the minor axis may be approximately 2 to 2.5. The endpoints of the first nanopore 101A are arranged radially outward, inducing light diffusion, generating positive spherical aberration (producing +5.00D positive spherical aberration) and peripheral defocus (helping to increase depth of field and reduce interference from higher-order aberrations on the focal point), and controlling lateral scattering to reduce non-axial stimulation. Furthermore, the aperture D of the first nanopore 101A may be designed to increase from the inside out; therefore, the outermost first nanopore 101A (with a larger aperture D) will be more conducive to the penetration of near-red light.

[0038] The second nanopore 102A can be elliptical, with a higher density than the first nanopore 101A. Its major axis can be 150 nm to 200 nm, and its minor axis can be 60 nm to 90 nm, with a major-to-minor axis ratio of approximately 2.2 to 2.5. The two endpoints of the second nanopore 102A are tangentially aligned, generating multidirectional scattering, blurring peripheral stimuli, reducing high spatial frequency noise (such as glare), further reducing peripheral interference, and minimizing off-focus stimuli in day and night environments, effectively controlling axial elongation. Furthermore, the smaller aperture D (shorter minor axis) of the second nanopore 102A makes near-red light less penetrating, thus reducing the red light energy density in the outer region E1.

[0039] The optical lens 1 of this invention overcomes traditional optical limitations by utilizing subwavelength optical properties. It simultaneously acts on different levels of retinal cells and signal feedback pathways with multiple optical stimuli, including: spatial frequency deprivation (contrast), visual blurring (positive spherical aberration), spectral restriction (red light transmission), and directional phase compensation (the arrangement direction and shape of nanopores). Through the above-mentioned multi-module myopia control optical strategy, the elongation of the eye axis can be "converged and suppressed."

[0040] Specifically, through the pore size D, arrangement direction, shape, density, and refractive layer 120 of the nanopore structure 100 of the optical lens 1, the peripheral contrast of the retina can be effectively reduced (by 40% to 60%), thereby weakening the excitability of the ON pathway in the retina and releasing dopamine (according to the 2024 issue of Investigative Ophthalmology & Visual Science (IOV), dopamine levels in guinea pig models increased by 38%). The optical lens 1 can also effectively generate dynamic spherical aberration defocus signals (continuous peripheral defocus), reducing the activity of scleral fibroblasts and decreasing human collagen synthesis by 52% (according to the 2023 issue of Scientific Reports), directly intervening in axial elongation. The optical lens 1 can also perform spectral modulation, selectively enhancing the penetration of red light, resulting in a choroidal thickening of 29 micrometers (μm) (based on experiments with rhesus monkeys). In addition, the optical lens 1 can also generate directional phase compensation through the arrangement direction and shape of the nanopore structure 100, effectively simulating astigmatism compensation.

[0041] like Figure 5 As shown, in some embodiments, the first nanopore 101A can also be V-shaped or triangular, which also has one end point and is arranged radially outward around the center C1 with the end point as the arrangement. The V-shaped first nanopore 101A is the same as the teardrop shape, which can also induce light to spread outward, generate positive spherical aberration and peripheral defocus, and reduce non-axial stimulation.

[0042] Figure 6 A schematic diagram illustrating an edge region E2 of an optical lens 1 according to certain embodiments of the present invention is shown. Figure 6 The contents shown are merely illustrative of embodiments of the present invention and are not intended to limit the present invention.

[0043] Please see Figure 6 If optical lens 1 is a pair of eyeglasses, then optical lens 1 may also include an edge region E2, which surrounds the outer ring region PZ and extends to the edge of optical lens 1. For ease of illustration, Figure 6 The optical lens 1 is exemplified by a square shape. For instance, the optical lens 1 is a 30mm diameter eyeglass frame. The optical region OZ can be a circular area ranging from 0mm (center C1) to 6-9mm, the transition region T1 can be a ring-shaped area ranging from 6-9mm to 14mm, the outer edge region E1 can be a ring-shaped area ranging from 14mm to 20mm, and the edge region E2 can be any other area ranging from 20mm to 30mm. The outer surface 10 of the edge region E2 can also form a plurality of non-periodicly arranged second nanopores 102A, thereby causing random scattering in the edge region E2 and reducing edge interference of the light field.

[0044] Figure 7 A schematic diagram illustrating a temporal enhancement region T2 of an optical lens 1 according to certain embodiments of the present invention is shown.

[0045] Figure 7 The contents shown are merely illustrative of embodiments of the present invention and are not intended to limit the present invention.

[0046] Please see Figure 7 The transition region T1 of the optical lens 1 may also include a temporal enhancement region T2, which is located on the outer side near the eye (i.e., the region of the optical lens 1 relatively close to the ear). The distribution density of the first nanopore 101A in the temporal enhancement region T2 is higher than that in other areas of the transition region T1 except for the temporal enhancement region T2. ​​Taking a 20 mm diameter eyeglass as an example, the temporal enhancement region T2 can be a region of 6-9 mm to 12 mm. That is, the temporal enhancement region T2 overlaps with the transition region T1, and the distribution density of the first nanopore 101A in the temporal enhancement region T2 is higher than that in the transition region T1 where it does not overlap with the temporal enhancement region T2. ​​By increasing the distribution density of the first nanopore 101A in the temporal enhancement region T2, the positive spherical aberration of the image formed through the temporal enhancement region T2 can be enhanced.

[0047] In some embodiments, the inner surface 12 of the optical lens 1 is also formed with multiple freeform surfaces (with different curvature designs, or multiple microlenses), thereby adjusting the positive spherical aberration of the image formed through the optical lens 1. Specifically, it can be converted into the corresponding freeform surface double-loop profile function or microlens distribution by Zernike polynomial. Taking the freeform surface as an example, it can be molded on the base curve (BC) of the lens (i.e., the inner surface 12 of the optical lens 1) using five-axis ultra-precision cutting or photolithography through a freeform surface mold, thus generating a defocus signal of dynamic positive spherical aberration (e.g., diopter +1.50D to +5.00D). In this case, the nanostructure 100 of the optical lens 1 and the complex freeform surface can generate dual aberration control. Light passing through the nanostructure 100 will generate additional phase delay (similar to a diffractive lens), and the complex freeform surface will increase the depth of focus (e.g., wavefront aberration Z is greater than +0.2 micrometers), thereby enhancing myopia suppression.

[0048] Figure 8 A schematic diagram illustrating the optical region OZ of the inner surface 12 and the outer surface 10 in certain embodiments of the present invention is shown. Figure 8 The contents shown are merely illustrative of embodiments of the present invention and are not intended to limit the present invention.

[0049] like Figure 8As shown, the optical zone OZ of the inner surface 12 and the optical zone OZ of the outer surface 10 of the optical lens 1 can be designed with different diameters. For example, the optical zones OZ can be designed with the same diameter (i.e., approximately equal to the diameter of the pupil) to ensure the symmetry and stability of the optical zones OZ, while the diameter D1 of the optical zone OZ of the inner surface 12 of the optical lens 1 can be smaller than the diameter D2 of the optical zone OZ of the outer surface 10. By using the optical zone OZ of the outer surface 10 with a larger diameter D2, the amount of defocus entering the pupil is increased, directly intervening in axial elongation, and by using the optical zone OZ of the inner surface 12 with a smaller diameter D1, the central positioning of the lens is enhanced, improving central visual acuity.

[0050] Furthermore, if the optical lens 1 is a multi-layered contact lens (e.g., a contact lens with a sandwich structure, which includes an outer protective layer, a middle pigment layer, and an inner contact layer), then the nanostructure 100 can be formed on the outer surface of the outer layer or the outer surface of the middle layer of the contact lens, and the plurality of freeform surfaces can be formed on the inner surface of the inner layer or the inner surface of the middle layer.

[0051] The above embodiments are merely illustrative of some implementations of this utility model and to explain its technical features, and are not intended to limit the scope and extent of protection of this utility model. Any changes or equivalent arrangements that can be easily made by those skilled in the art to which this utility model pertains are within the scope of this utility model, and the scope of protection of this utility model is determined by the claims.

Claims

1. An optical lens, characterized in that, Include: One outer surface; An inner surface located on the side closer to an eye relative to the outer surface; An optical region, comprising a center of the optical lens; and An outer ring region surrounds the optical region, wherein a nanopore structure is formed on the outer surface of the outer ring region, and a refractive layer is formed on the nanopore structure.

2. The optical lens as described in claim 1, characterized in that, The outer ring region also includes a transition region and an outer edge region. The transition region surrounds the optical region, and the outer edge region surrounds the transition region. The nanopore structure of the transition region includes a plurality of first nanopores, and the nanopore structure of the outer edge region includes a plurality of second nanopores. Each of the first nanopores has one end point and is arranged radially outward around the center with respect to the end point. Each of the second nanopores has two end points and is arranged tangentially around the center with respect to the two end points.

3. The optical lens as described in claim 2, characterized in that, The pore size of the complex first nanopore increases from the inside out.

4. The optical lens as described in claim 2, characterized in that, The complex first nanopore is either teardrop-shaped or V-shaped, and the complex second nanopore is elliptical.

5. The optical lens as described in claim 2, characterized in that, The optical lens also includes an edge region surrounding the outer ring region and extending to the edge of the optical lens, wherein the outer surface of the edge region forms a plurality of non-periodicly arranged second nanopores.

6. The optical lens as described in claim 2, characterized in that, The transition region also includes a temporal enhancement region located on the outer side of the eye, wherein the distribution density of the plurality of first nanopores in the temporal enhancement region is higher than that in other areas of the transition region other than the temporal enhancement region, thereby enhancing the positive spherical aberration of an image formed through the temporal enhancement region.

7. The optical lens as described in claim 1, characterized in that, The inner surface of the optical lens is also formed with multiple freeform surfaces, thereby adjusting the spherical aberration of an image formed through the optical lens.

8. The optical lens as described in claim 7, characterized in that, The diameter of the optical region located on the inner surface is smaller than the diameter of the optical region located on the outer surface.

9. The optical lens as described in claim 1, characterized in that, The outer surface of the optical region also forms the nanopore structure, and a refractive layer is formed on the nanopore structure, wherein the density of the nanopore structure in the optical region is lower than that in the outer ring region.

10. The optical lens as described in claim 1, characterized in that, The refractive layer is composed of titanium dioxide and aluminum oxide.

11. The optical lens as described in claim 1, characterized in that, The nanoporous structure was designed using the box-counting fractal method.

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