Microstructure spectacle lens and glasses

Abstract

The microstructure spectacle lens comprises a lens body, a plurality of focusing micro lenses and a plurality of diverging micro lenses, at least one of the plurality of focusing micro lenses, at least one of the plurality of diverging micro lenses and the lens body jointly form a regulation and control unit, and the diameter of the regulation and control unit is smaller than or equal to the diameter of human eye pupils. After incident light passes through the regulation and control unit, a focusing stimulation signal and a diverging stimulation signal are generated in a pupil range at the same time. Two different stimulation signals are simultaneously generated in a pupil range to achieve the effect of inhibiting myopia development, the visual quality around the retina is further reduced, the stimulation effect is enhanced, meanwhile, drug resistance generated by a single stimulation signal in a short time is avoided, and the time efficiency of a lens wearing effect is prolonged.

Description

Technical Field

[0001] This application belongs to the field of optical components, specifically relating to a microstructured spectacle lens and spectacle. Background Technology

[0002] With the widespread use of electronic products and the increasing screen time spent by teenagers and children, the prevalence of myopia among teenagers and children is rising year by year. If myopia is not addressed promptly to slow its progression, it can easily develop into high myopia and even irreversible blindness. Therefore, myopia prevention and control for teenagers is urgent. Most currently popular microstructure lenses provide only a single stimulus signal, and their accommodative effect gradually weakens with prolonged wear. Furthermore, the popular DOT lenses use a non-transparent microstructure that is clearly visible on the lens surface, causing aesthetic defects. Utility Model Content

[0003] Purpose of the utility model: This application provides a microstructured eyeglass lens that simultaneously introduces both focusing and diverging stimulation signals around the retina. This prevents light passing through the microstructure from converging onto the retina in a regular manner, instead forming an image in a mixed convergent and divergent manner. This reduces the visual quality around the retina, thereby inhibiting the development of refractive errors.

[0004] Technical solution: This application provides a microstructured spectacle lens, comprising:

[0005] The lens body includes an optical center, and the lens body has a visual field and an adjustment area surrounding the visual field; the center of the visual field coincides with the optical center.

[0006] Multiple focusing microlenses are disposed in the adjustment area and connected to the lens body, and are configured to cooperate with the lens body to form a focused stimulation signal;

[0007] Multiple diverging microlenses are disposed in the adjustment area and connected to the lens body, and are configured to cooperate with the lens body to form a diverging stimulation signal;

[0008] In this unit, at least one of the plurality of focusing microlenses, at least one of the plurality of diverging microlenses, and the lens body together constitute a control unit. The diameter of the control unit is less than or equal to the diameter of the human pupil, so that after the incident light passes through the control unit, the focusing stimulation signal and the diverging stimulation signal are generated simultaneously within a pupil range.

[0009] In some embodiments, the lens body has a thickness direction, and the lens body includes a first surface and a second surface disposed opposite to each other along the thickness direction, the first surface being the side of the lens body away from the human eye; the focusing microlens is a first lens, and the diverging microlens is a second lens; both the first lens and the second lens are connected to the first surface and protrude in the thickness direction toward the side away from the human eye;

[0010] Wherein, the sagittal height of the first lens is H1μm and the sagittal height of the second lens is H2μm, satisfying: 0.01≤H2 / H1<19.2.

[0011] In some embodiments, the lens body has a thickness direction, and the lens body includes a first surface and a second surface disposed opposite to each other along the thickness direction, the first surface being the side of the lens body away from the human eye; the focusing microlens is a first lens, and the diverging microlens is a concave lens; the first lens is connected to the first surface and protrudes in the thickness direction toward the side away from the human eye; the concave lens is connected to the first surface and protrudes in the thickness direction toward the side closer to the human eye.

[0012] Wherein, the sagitta of the first lens is H1μm, and the sagitta of the concave lens is H3μm, satisfying: 0.01≤H3 / H1≤100.

[0013] In some embodiments, in one of the control units, the focusing microlens and the diverging microlens are arranged spaced apart from each other; or

[0014] In one of the control units, the focusing microlens and the diverging microlens are connected to each other; or

[0015] There are multiple control units, and the multiple control units are arranged at intervals between each other in the adjustment area; or

[0016] There are multiple control units, and the multiple control units are connected to each other in the adjustment area.

[0017] In some embodiments, the lens body has a thickness direction; in one of the control units, the sum of the orthographic projection areas of the focusing microlens and the diverging microlens along the thickness direction on the first surface of the lens body is S1 mm. 2 The area of ​​the control unit is S² mm. 2 The condition is satisfied that 20% ≤ S1 / S2 ≤ 80%.

[0018] In some embodiments, the microstructured spectacle lens further satisfies at least one of the following characteristics:

[0019] a) 0.1 ≤ H1 ≤ 10;

[0020] b) 0.1 ≤ H2 < 1.92;

[0021] c) 0.1 ≤ H3 ≤ 10;

[0022] d) 0.6 ≤ S1 ≤ 23;

[0023] e)3≤S2≤29.

[0024] In some embodiments, the radial diameter of the focusing microlens is 0.1–2 mm; and / or

[0025] The radial diameter of the diverging microlens is 0.1–2 mm; and / or

[0026] The diameter of the control unit is 2–6 mm; and / or

[0027] The thickness of the lens body is 1.0 to 5.0 mm.

[0028] In some embodiments, the first surface and / or the second surface are selected from any one of a sphere, an aspherical surface, and a freeform surface.

[0029] In some embodiments, the focusing microlens is configured to have a stronger light-gathering capability than the first surface, and the curvature of the structure may be continuous or discontinuous;

[0030] The diverging microlens is configured to have a weaker ability to converge light than the first surface or to have a structure with the ability to diverge light, and the curvature of the structure may be continuous or discontinuous.

[0031] In some embodiments, the arrangement of the focusing microlens and the diverging microlens in the adjustment area includes any one of the following: ring, island, or grid array.

[0032] In some embodiments, this application also provides eyeglasses, including the aforementioned microstructured lens.

[0033] Beneficial Effects: Compared with the prior art, the microstructured spectacle lens of this application includes: a lens body, the lens body including an optical center, the lens body having a visual field zone and an accommodation zone surrounding the visual field zone; the visual field zone coincides with the optical center; multiple focusing microlenses, disposed in the accommodation zone and connected to the lens body, configured to cooperate with the lens body to form a focusing stimulation signal; multiple diverging microlenses, disposed in the accommodation zone and connected to the lens body, configured to cooperate with the lens body to form a diverging stimulation signal; wherein, at least one of the multiple focusing microlenses, at least one of the multiple diverging microlenses, and the lens body together constitute a control unit, the diameter of the control unit being less than or equal to the diameter of the human pupil, so that incident light, after passing through the control unit, simultaneously generates a focusing stimulation signal and a diverging stimulation signal within one pupillary range. The microstructured spectacle lens of this application achieves the effect of inhibiting myopia development by simultaneously generating two different stimulation signals within one pupillary range, and further reduces peripheral visual quality of the retina compared with traditional positive defocus lenses, enhancing the stimulation effect, while avoiding drug resistance caused by a single stimulation signal in a short period of time, thus prolonging the duration of the wearing effect. Furthermore, compared to pinhole DOT lenses, the lenses of this application have a superior appearance due to the use of transparent microlenses. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A front view of a microstructured spectacle lens provided in an embodiment of this application;

[0036] Figure 2 for Figure 1 A schematic diagram of the arrangement of microlenses in a corresponding control unit of the eyeglass lens shown;

[0037] Figure 3 for Figure 1 A schematic diagram of the cross-section of the eyeglass lens shown;

[0038] Figure 4 for Figure 3 A partial schematic diagram;

[0039] Figure 5 A front view of another microstructured eyeglass lens provided in an embodiment of this application;

[0040] Figure 6 for Figure 5 A schematic diagram of the arrangement of microlenses in a corresponding control unit of the eyeglass lens shown;

[0041] Figure 7 This is a schematic diagram of the arrangement of microlenses in another control unit;

[0042] Figure 8 This is a schematic diagram of the arrangement of microlenses in another control unit;

[0043] Figure 9 This is a schematic diagram of the arrangement of microlenses in another control unit;

[0044] Figure 10 A front view of a microstructured spectacle lens with a ring-shaped layout;

[0045] Figure 11 A front view of a microstructured spectacle lens with an island-shaped layout;

[0046] Figure 12 An optical system diagram of a myopia-type spectacle model provided in an embodiment of this application;

[0047] Figure 13 MTF plots of the off-axis field of view for eyeglass lenses with different microstructure morphologies under the same appearance conditions;

[0048] Figure 14 This is a schematic diagram of the structure of the second lens provided in an embodiment of this application;

[0049] Figure 15 This is a schematic diagram of the structure of a concave lens provided in an embodiment of this application;

[0050] Figure 16 A schematic diagram of a focusing microlens structure with continuous curvature provided for an embodiment of this application;

[0051] Figure 17 A schematic diagram of another focusing microlens structure with continuous curvature provided for an embodiment of this application;

[0052] Figure 18 A schematic diagram of a focusing microlens structure with discontinuous curvature provided for an embodiment of this application;

[0053] Figure 19 A schematic diagram of another focusing microlens structure with discontinuous curvature provided for an embodiment of this application;

[0054] Figure 20 Schematic diagrams of other focusing microlens structures with discontinuous curvature provided for embodiments of this application;

[0055] Figure 21 A schematic diagram of a diverging microlens with continuous curvature provided for an embodiment of this application;

[0056] Figure 22A schematic diagram of a diverging microlens with discontinuous curvature provided for an embodiment of this application;

[0057] Figure 23 A schematic diagram of a concave lens with continuous curvature provided in an embodiment of this application;

[0058] Figure 24 A schematic diagram of a concave lens with discontinuous curvature provided in an embodiment of this application;

[0059] Reference numerals: 10-Lens body, 11-First surface, 12-Second surface, 101-Optical center, 102-Visible zone, 103-Adjustment zone, 20-Focusing microlens, 201-First lens, 30-Diverging microlens, 301-Second lens, 302-Concave lens, 40-Control unit. Detailed Implementation

[0060] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0061] In the description of this application, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, and "at least one" can mean one, two, or more, unless otherwise expressly specified.

[0062] Currently, most mainstream microstructured eyeglass lenses on the market introduce a relatively singular stimulation signal to the peripheral retina, leading to drug resistance in nearsighted patients within a short period. Furthermore, most popular DOT lenses employ a non-transparent, microporous structure to reduce peripheral visual quality, resulting in certain aesthetic defects. Based on these issues, this application proposes a microstructured eyeglass lens and eyeglasses to address these problems.

[0063] See Figure 1 and Figure 2An embodiment of this application provides a microstructured spectacle lens, comprising: a lens body 10, the lens body 10 including an optical center 101, the lens body 10 having a visual field 102 and an adjustment area 103 surrounding the visual field 102; the center of the visual field 102 coincides with the optical center 101; a plurality of focusing microlenses 20, disposed in the adjustment area 103 and connected to the lens body 10, configured to cooperate with the lens body 10 to form a focusing stimulation signal; a plurality of diverging microlenses 30, disposed in the adjustment area 103 and connected to the lens body 10, configured to cooperate with the lens body 10 to form a diverging stimulation signal; wherein at least one of the plurality of focusing microlenses 20, at least one of the plurality of diverging microlenses 30, and the lens body 10 together constitute a control unit 40, the diameter of the control unit 40 being less than or equal to the diameter of the human pupil, so that after incident light passes through the control unit 40, a focusing stimulation signal and a diverging stimulation signal are simultaneously generated within a pupil area.

[0064] It is understood that in the lens structure of this application, since there are multiple control units 40 in the control area 103, and each control unit 40 has two different microlenses that work with the lens body to form two different stimulation signals, the light passing through the microstructure cannot be regularly focused on the retina, but instead forms an image in a mixed form of convergence and divergence, thereby reducing the visual quality of the peripheral retina and thus achieving the effect of inhibiting the abnormal development of refractive errors. By having two different stimulation signals in one pupil area at the same time, the effect of inhibiting myopia development is achieved. Compared with traditional positive defocus lenses, it further reduces the visual quality of the peripheral retina, while avoiding drug resistance due to a single stimulation signal in a short period of time and prolonging the effect of wearing glasses.

[0065] In some embodiments, such as Figure 1 As shown, the zone of luminosity 102 is used to provide refractive power according to the patient's spectacle prescription, thereby generating a clear visual signal. The zone of luminosity 102 can be a symmetrical shape such as a circle or a regular polygon. When the zone of luminosity 102 is circular, its diameter ranges from 4 to 10 mm, and the center of the circle is the geometric center of the zone of luminosity 102. The zone of luminosity 102 provides clear visual acuity and does not contain any microstructures.

[0066] In some embodiments, the term "optical center" refers to the center point of axial symmetry of the lens, or the center point of symmetry along the optical axis. Light rays passing through the optical center do not undergo deflection or refraction, meaning the beam propagation direction does not deviate from the axis. The term "geometric center" refers to the center point of symmetry of the lens's shape or boundary, determined based on the lens's geometric properties. In this embodiment, the geometric center of the visible area 102 coincides with the optical center 101. Light rays propagating through the optical center 101 do not undergo deflection or refraction, which helps maintain collimation and focal stability, simplifying the lens's structural design.

[0067] In some embodiments, it is understood that the focusing microlens 20 is a microlens with a focusing function, capable of converging light radiation. The diverging microlens 30 refers to a microlens with a diverging function, capable of diverging light. In this embodiment, both the focusing microlens 20 and the diverging microlens 30 are types of lenses and are made of transparent material, thus making the eyeglass lens more transparent in appearance, which is advantageous.

[0068] In some embodiments, see further. Figure 3 and Figure 4 The lens body 10 has a thickness direction X. The lens body 10 includes a first surface 11 and a second surface 12 disposed opposite to each other along the thickness direction X. The first surface 11 is the side of the lens body 10 away from the human eye. The focusing microlens 20 is the first lens 201, and the diverging microlens 30 is the second lens 301. The first lens 201 and the second lens 301 are both connected to the first surface 11 and protrude in the thickness direction X towards the side away from the human eye. The first lens 201 has a height of H1μm, and the second lens 301 has a height of H2μm, satisfying: 0.01≤H2 / H1<19.2.

[0069] It is understandable that the sagitta of a lens refers to the perpendicular distance from the geometric center of the lens to the intersection of its normal and the first surface 11, and is a parameter used to represent the curvature of the lens surface. The first lens 201 has a convex lens structure; the second lens 301 is a convex lens with a refractive power less than the first surface 11, obtained by removing part of the top surface structure of the first surface 11 to reduce the sagitta. That is, when the second lens 301 is combined with the lens body 10, only the intersecting part is retained, such as... Figure 14 As shown, the dashed line represents the portion that was removed. At this point, the first lens 201, acting as a convex lens, can focus the light, generating a focused stimulus signal. The second lens 301, due to the structural changes on its top surface and the reduction in its sagittal height, causes the light that should be focused to diverge, generating a divergent stimulus signal. Therefore, when the range of 0.01 ≤ H2 / H1 < 19.2 is satisfied, two different stimulus signals exist simultaneously within a single pupillary range, achieving the effect of inhibiting myopia progression. Here, H2 / H1 can be any one of 0.01, 0.05, 0.1, 1, 5, 10, 15, or 19.1, or a range between any two of these values.

[0070] In some embodiments, see further. Figure 3 and Figure 4The lens body 10 has a thickness direction X. The lens body 10 includes a first surface 11 and a second surface 12 disposed opposite to each other along the thickness direction X. The first surface 11 is the side of the lens body 10 away from the human eye. The focusing microlens 20 is a first lens 201, and the diverging microlens 30 is a concave lens 302. The first lens 201 is connected to the first surface 11 and protrudes in the thickness direction X towards the side away from the human eye. The concave lens 302 is connected to the first surface 11 and protrudes in the thickness direction X towards the side closer to the human eye. The first lens 201 has a height of H1μm, and the concave lens 302 has a height of H3μm, satisfying: 0.01≤H3 / H1≤100.

[0071] It is understandable that at this time, the first lens 201 has a convex lens structure, and the concave lens 302 is as follows: Figure 15 The concave portion. The first lens 201, acting as a convex lens, focuses light, generating a focused stimulus signal; the concave lens 302 diverges light, generating a divergent stimulus signal. Therefore, when the range 0.01 ≤ H3 / H1 ≤ 100 is satisfied, two different stimulus signals can be simultaneously present within a single pupillary area, thus inhibiting myopia progression. Here, H3 / H1 can be any one value or a range between any two values ​​from 0.01, 0.05, 0.1, 0.5, 1, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, and 100.

[0072] In some embodiments, see further. Figure 8 and Figure 9 In a control unit 40, focusing microlens 20 and diverging microlens 30 are arranged spaced apart from each other. See further details in some embodiments. Figure 2 , Figure 6 and Figure 7 In a control unit 40, focusing microlens 20 and diverging microlens 30 are connected to each other.

[0073] It is understandable that in a control unit 40, the total number of focusing microlenses 20 and diverging microlenses 30 is at least two to ensure that both focusing and diverging stimulation signals can be generated simultaneously within a pupil area. Regardless of whether the lenses are connected to each other or spaced apart, they can generate a variety of different stimulation signals, reduce peripheral visual quality of the retina, and enhance the stimulation effect.

[0074] In some embodiments, see further. Figure 1 and Figure 5 There are multiple control units 40, and the multiple control units 40 are connected to each other in the adjustment region 103. In some embodiments, there are multiple control units 40 in the adjustment region 103, and the multiple control units 40 are arranged at intervals in the adjustment region 103.

[0075] Understandably, the different settings of the control units 40 make the layout of microlenses on the microstructure lens more diverse, which can further improve the fit effect for different people. Furthermore, lenses with different microstructure morphologies can be interchanged to enhance the stimulation effect, increase the adjustment precision and adjustment range of the microstructure lens, and allow for personalized adjustment of the pupils of different vision groups.

[0076] In some embodiments, the lens body 10 has a thickness direction X; in a control unit 40, the sum of the orthogonal projection areas of the focusing microlens 20 and the diverging microlens 30 along the thickness direction X on the first surface 11 of the lens body 10 is S1 mm. 2 The area of ​​the control unit 40 is S2 mm. 2 The following condition must be met: 20% ≤ S1 / S2 ≤ 80%. It is understood that S1 / S2 represents the fill rate of the microstructure within a control unit. When the range of 20% ≤ S1 / S2 ≤ 80% is met, it ensures that there are a sufficient number of focusing microlenses 20 and diverging microlenses 30 within the control area 103, allowing the transmitted light to be imaged in a mixed convergent and divergent manner, thereby reducing the visual quality of the peripheral retina. Furthermore, by changing the distribution ratio of the focusing microlenses 20 and diverging microlenses 30, the imaging contrast of the retina can also be reduced, thereby achieving the effect of inhibiting myopia progression. Preferably, the value of S1 / S2 can be any one of 20%, 30%, 40%, 50%, 60%, 70%, and 80%, or a range between any two values.

[0077] In some embodiments, the sagitta H1μm of the first lens 201 further satisfies: 0.1≤H1≤10. For example, it can be any one value or a range between any two values ​​from 0.1μm, 0.2μm, 0.5μm, 1μm, 2μm, 3μm, 4μm, 5μm, 6μm, 7μm, 8μm, 9μm, and 10μm.

[0078] In some embodiments, the sagitta H2μm of the second lens 301 further satisfies: 0.1≤H2<19.2. For example, it can be any one value or a range between any two values ​​from 0.1μm, 0.2μm, 0.5μm, 1μm, 2μm, 3μm, 4μm, 5μm, 6μm, 7μm, 8μm, 9μm, 10μm, 12μm, 15μm, 18μm, 19μm, 19.1μm.

[0079] In some embodiments, the sagitta H3μm of the concave lens 302 further satisfies: 0.1≤H3≤10. For example, it can be any one value or a range between any two values ​​from 0.1μm, 0.2μm, 0.5μm, 1μm, 2μm, 3μm, 4μm, 5μm, 6μm, 7μm, 8μm, 9μm, and 10μm.

[0080] In some embodiments, the orthogonal projection area of ​​the focusing microlens 20 and the diverging microlens 30 along the thickness direction X on the first surface 11 of the lens body 10 is S1 mm. 2 Further satisfying condition: 0.6≤S1≤23.

[0081] In some embodiments, the area of ​​the control unit 40 is S² mm. 2 Furthermore, the following condition must be met: 3≤S2≤29.

[0082] In some embodiments, the radial diameter of the focusing microlens 20 is 0.1 to 2 mm; for example, it can be any one or any two values ​​of 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.5 mm, or 2 mm.

[0083] In some embodiments, the radial diameter of the diverging microlens 30 is 0.1 to 2 mm; for example, it can be any one or any two of the following values: 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.5 mm, and 2 mm.

[0084] In some embodiments, the diameter of the control unit 40 is 2 to 6 mm; for example, it can be any one of 2 mm, 3 mm, 4 mm, 5 mm, 6 mm or a range between any two values.

[0085] In some embodiments, the thickness of the lens body 10 is 1 to 5 mm; for example, it can be any one of 1 mm, 2 mm, 3 mm, 4 mm, 5 mm or a range between any two values.

[0086] In some embodiments, the first surface 11 and the second surface 12 are selected from any of spherical, aspherical, and freeform surfaces, and can include personalized freeform surface design and / or peripheral hyperopic defocusing accuracy compensation function provided for different human eyes.

[0087] In some embodiments, the focusing microlens 20 and the diverging microlens 30 are arranged in the adjustment region 103 in any of the following configurations: annular, island-shaped, or grid array. See also... Figure 10 This is a ring-shaped layout; see [link / reference]. Figure 11 It adopts an island-shaped layout.

[0088] In some embodiments, the focusing microlens 20 can be configured as a protruding structure with a stronger light-converging ability than the first surface 11. The curvature of the protruding structure can be continuous or discontinuous. When the curvature of the protruding structure is continuous, the protruding structure can be composed of any smooth surface. The smooth surface can be a surface with a single taper coefficient or a double taper coefficient, or it can be a surface with multiple taper coefficients, such as a sphere, an aspherical surface, a torus, etc. (See [reference]). Figure 16 Surfaces (a), (b), and (c) in the text can also be free-form surfaces or surfaces composed of a combination of multiple smooth surfaces. See [link to relevant documentation]. Figure 17 When the curvature of a convex structure is discontinuous, the convex structure can be composed of any surface with sharp points. That is, each curve constituting the convex structure is continuous, but at certain points the function becomes non-differentiable, causing the curvature of the structure to be discontinuous at those points. Examples include pyramids, cones, frustums, and truncated pyramids. See [link to relevant documentation]. Figure 18 (a), (b), (c), and (d) in the text; could also be composed of surfaces with discontinuous internal structures, meaning that some curves constituting the convex structure are discontinuous, resulting in discontinuities in curvature at those points. See also... Figure 19 ; or it may be composed of multiple surfaces with discontinuous curvature, see [reference needed]. Figure 20 (a), (b), (c), (d), and (e) in the example.

[0089] In some embodiments, the diverging microlens 30 can be configured as a structure with a light-gathering ability weaker than the first surface 11 or with a light-gathering ability, and its curvature can be continuous or discontinuous. If the curvature of the structure is continuous, the structure can be composed of a smooth surface with any single taper, double taper coefficient, or multi-taper coefficient, such as a sphere, aspherical surface, cylindrical surface, torus, etc., or it can be a free-form surface or a surface composed of a combination of multiple smooth surfaces; if the curvature of the structure is discontinuous, the structure can be composed of a surface with a sharp point and a half-apex angle α of the sharp point less than 90° in the cross-sectional view, such as a pyramid, cone, etc. When the light-gathering ability of the structure is weaker than that of the first surface 11, the form after the structure is connected and combined with the first surface 11 is a structure in which the first surface 11 is removed from a portion that does not intersect with the structure, see [reference]. Figure 21 and Figure 22 When the structure is capable of emitting light, the form after the structure is connected and combined with the first surface 11 is the first surface 11 without the structures intersecting with it, see [reference]. Figure 23 and Figure 24 .

[0090] In some embodiments, the lens can be cast or injection molded from a metal mold, or cast from a glass mold to obtain the desired prescription power or a semi-finished product. The semi-finished product is then machined in a lathe to obtain the desired prescription power. In some embodiments, the lens can also be made into the desired prescription power or a semi-finished product using a UV curing process with metal and glass molds. The semi-finished product is then machined in a lathe to obtain the lens required by the wearer, or a lens or lens blank is made through a bonding process.

[0091] In some embodiments, the lens material includes polymeric materials or inorganic non-metallic materials. The polymeric materials include thermoplastic resins or thermosetting resins, and the inorganic non-metallic materials include glass, etc. Thermoplastic resins include polycarbonate or polymethyl methacrylate; thermosetting resins include any one of acrylic resins, cyclic sulfur resins, ethyl thiocarbamate resins, allyl resins, and polycarbamates.

[0092] In some embodiments, a coating film is formed on at least one surface of the spectacle lens. The coating film includes a transparent coating that increases the lens's light transmittance, a hard coating that increases the lens's durability, a reflective coating that blocks harmful light, an anti-reflective coating that improves image visibility, a polarizing coating with photochromic properties, or other photochromic films doped with ultraviolet-sensitive materials. The coating film itself can have different colors; its visible color under reflective conditions can be green, blue, yellow, purple, or other colors.

[0093] In some embodiments, the spectacle lens obtained by the above process can be combined with the eyeglass frame to further obtain eyeglasses. The shape of the spectacle lens can be circular, square, elliptical, or other irregular shapes. It should be noted that the shape of the spectacle lens can be approximately as described above, and is not limited to a perfect geometric shape.

[0094] by Figure 2 Taking the structure of the control unit 40 as an example, a total of 6 microlenses are used, including focusing microlenses 20 and diverging microlenses 30 (the number of microlenses within one pupil is 6). The fill ratio (S1 / S2) is 66.66%. The focusing microlens 20 is a convex lens with a sagittal height of 1μm and a radial diameter of 1mm; the diverging microlens 30 is a concave lens with a sagittal height of 1μm and a radial diameter of 1mm. Furthermore, the number of diverging microlenses 30 is set to 2, 3, 4, and 5 respectively. The optical path diagram of the myopia model eye and lens designed according to the prescription-3D, the set pupil diameter of 2.8mm, the selected lens-eye distance of 12mm, and the field of view of ±16.5° is shown below. Figure 12 As shown.

[0095] Observe the MTF (Mean Transmission Format) plots on the retina in the off-axis field of view for each optical system after light passes through the lens. Since the cutoff frequency of the human eye is typically between 20-30 lp / mm, MTF values ​​within 30 lp / mm are selected for observation and analysis. See [link to relevant documentation]. Figure 13 L0 represents a conventional positive defocus lens under the same appearance conditions; L1 represents a lens with 2 diverging microlenses (30) within a pupil area; L2 represents a lens with 3 diverging microlenses (30) within a pupil area; L3 represents a lens with 4 diverging microlenses (30) within a pupil area; and L4 represents a lens with 5 diverging microlenses (30) within a pupil area. The curves L1, L2, L3, and L4 are all below the L0 curve, indicating that the lens proposed in this application has a stronger effect on reducing peripheral visual quality compared to conventional positive defocus lenses. To facilitate a more accurate quantitative assessment of the entire system, the MTF area method can be used to calculate the area enclosed by each curve, the spatial frequency axis, and the MTF axis. The calculation results show that the area of ​​L0 is 14.269, the area of ​​L1 is 13.911, the area of ​​L2 is 13.611, the area of ​​L3 is 13.517, and the area of ​​L4 is 13.634. The areas of L1 to L4 are all smaller than the area of ​​L0, indicating that within the human eye's cutoff frequency range, the lens structure proposed in this embodiment is better than traditional positive defocus lenses in reducing peripheral visual quality of the retina.

[0096] Currently, most microstructured lenses use the same optical structure parameters on the same lens surface. When different optical structure parameters are used on the same lens surface, the microstructured spectacle lens of this embodiment can still provide a relatively strong stimulation signal to the peripheral retina, further reducing the visual quality of the peripheral retina.

[0097] In this embodiment, the appearance conditions of the traditional forward defocus lens and the lens proposed in this application are consistent for simulation. Microstructures with different optical structural parameters are set on the same lens surface. The sagitta of the microlens is set in three ways, namely 1μm, 3μm and 5μm. The traditional forward defocus microlens with a convex sagitta of H2 is used to replace the diverging microlens part with a concave sagitta of H3 in this application. The MTF curves of each lens are recorded respectively, and the experimental data are processed by the MTF area method to obtain the area data of each lens, as shown in Table 1.

[0098] Table 1

[0099]

[0100] In Table 1, the convex sagittal heights H1 and H2 are the sagittal heights of the focusing microlens, and the concave sagittal height H3 is the sagittal height of the diverging microlens.

[0101] As can be seen from the data in Table 1, compared with traditional positive defocus lenses, under the same appearance conditions, within the pupil range of the human eye's cutoff frequency range, the microstructured spectacle lens proposed in this embodiment has a stronger effect on reducing peripheral visual quality of the retina and is more beneficial for controlling the growth of the axial length of the eye.

[0102] The foregoing has provided a detailed description of a microstructured spectacle lens and spectacle provided in the embodiments of this application, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A microstructured spectacle lens, characterized in that, include: The lens body (10) includes an optical center (101), the lens body (10) has a visible area (102) and an adjustment area (103) arranged around the visible area (102); the center of the visible area (102) coincides with the optical center (101); Multiple focusing microlenses (20) are disposed in the adjustment area (103) and connected to the lens body (10), and are configured to cooperate with the lens body (10) to form a focused stimulation signal; Multiple diverging microlenses (30) are disposed in the adjustment area (103) and connected to the lens body (10), and are configured to cooperate with the lens body (10) to form a diverging stimulation signal; Among them, at least one of the plurality of focusing microlenses (20), at least one of the plurality of diverging microlenses (30), and the lens body (10) together constitute a control unit (40). The diameter of the control unit (40) is less than or equal to the diameter of the human eye pupil, so that after the incident light passes through the control unit (40), the focusing stimulation signal and the diverging stimulation signal are generated simultaneously within a pupil range.

2. The microstructured spectacle lens according to claim 1, characterized in that, The lens body (10) has a thickness direction (X), and the lens body (10) includes a first surface (11) and a second surface (12) disposed opposite to each other along the thickness direction (X). The first surface (11) is the side of the lens body (10) away from the human eye. The focusing microlens (20) is a first lens (201), and the diverging microlens (30) is a second lens (301). The first lens (201) and the second lens (301) are both connected to the first surface (11) and protrude in the thickness direction (X) towards the side away from the human eye. The first lens (201) has a sagitta of H1μm and the second lens (301) has a sagitta of H2μm, satisfying: 0.01≤H2 / H1<19.

2.

3. The microstructured spectacle lens according to claim 1, characterized in that, The lens body (10) has a thickness direction (X), and the lens body (10) includes a first surface (11) and a second surface (12) disposed opposite to each other along the thickness direction (X). The first surface (11) is the side of the lens body (10) away from the human eye. The focusing microlens (20) is a first lens (201), and the diverging microlens (30) is a concave lens (302). The first lens (201) is connected to the first surface (11) and protrudes in the thickness direction (X) towards the side away from the human eye. The concave lens (302) is connected to the first surface (11) and protrudes in the thickness direction (X) towards the side closer to the human eye. The first lens (201) has a sagitta of H1μm, and the concave lens (302) has a sagitta of H3μm, satisfying: 0.01≤H3 / H1≤100.

4. A microstructured spectacle lens according to claim 2 or 3, characterized in that, In one of the control units (40), the focusing microlens (20) and the diverging microlens (30) are arranged at intervals from each other; or In one of the control units (40), the focusing microlens (20) and the diverging microlens (30) are connected to each other; or There are multiple control units (40), and the multiple control units (40) are arranged at intervals between each other in the adjustment area (103); or There are multiple control units (40), and the multiple control units (40) are connected to each other in the adjustment area (103).

5. A microstructured spectacle lens according to claim 4, characterized in that, The lens body (10) has a thickness direction (X); in one of the control units (40), the sum of the orthographic projection areas of the focusing microlens (20) and the diverging microlens (30) along the thickness direction (X) on the first surface (11) of the lens body (10) is S1 mm. 2 The area of ​​the control unit (40) is S2 mm. 2 The condition is satisfied that 20% ≤ S1 / S2 ≤ 80%.

6. A microstructured spectacle lens according to claim 5, characterized in that, The microstructured spectacle lens further satisfies at least one of the following characteristics: a) 0.1 ≤ H1 ≤ 10; b) 0.1 ≤ H2 < 1.92; c) 0.1 ≤ H3 ≤ 10; d) 0.6 ≤ S1 ≤ 23; e)3≤S2≤29.

7. A microstructured spectacle lens according to claim 1, characterized in that, The radial diameter of the focusing microlens (20) is 0.1–2 mm; and / or The radial diameter of the diverging microlens (30) is 0.1–2 mm; and / or The diameter of the control unit (40) is 2-6 mm; and / or The thickness of the lens body (10) is 1.0 to 5.0 mm.

8. A microstructured spectacle lens according to claim 2 or 3, characterized in that, The first surface (11) and / or the second surface (12) are selected from any one of spherical, aspherical, and freeform surfaces.

9. A microstructured spectacle lens according to claim 8, characterized in that, The focusing microlens (20) is configured to have a stronger light-gathering ability than the first surface (11), and the curvature of the structure is either continuous or discontinuous. The diverging microlens (30) is configured to have a weaker ability to converge light than the first surface (11) or to have a structure with the ability to diverge light, and the curvature of the structure is either continuous or discontinuous.

10. A pair of eyeglasses, characterized in that, The microstructured spectacle lens includes any one of claims 1-9.

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