A microlens, a high-order defocus lens using the same and a pair of glasses

Abstract

The utility model provides a kind of microlens, high-order defocus lens and glasses using it, and the microlens is formed by at least 2 or more different curvature cambered mirrors spliced up and down, and all cambered mirrors form at least one optical axis.The utility model discloses that the microlens is designed by a plurality of different curvature cambered mirrors spliced up and down, different light addition distribution of center and periphery can be realized on the same microlens, and stray light can be generated at the splicing place of multiple cambered mirrors, so as to enhance defocus signal and contrast suppression.The high-order defocus lens and glasses formed by the microlens, the curvature center of these spliced cambered mirrors can also be arranged eccentrically, and then different eccentric modes of microlens and high-order defocus characteristics can be realized, stronger positive number defocus signal can be provided for specific visual field direction of different users, to further improve myopia control effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical technology field, concretely relates to a microlens, high order defocus lens and glasses using it. BACKGROUND

[0002] At present, the lens for myopia control is mainly based on the following two action principles: one is to provide scattering or diffusion effect in the peripheral retina area by the lens, reduce the imaging contrast of the area, thereby inhibiting the excessive growth of eyeball axis. Typical representatives include "frosted glass (DOT)" diffusion type myopia control lens (SightGlass etc.). Two is to provide a certain amount of positive number (+D) for the peripheral retina within the range of 10°~20° of the field of view, so that it produces myopia defocus signal, helps to inhibit the excessive elongation of the eye axis.

[0003] However, the above-mentioned technology still has the following problems to be improved in design and application: (1) how to further strengthen the defocus signal of the peripheral retina and improve the myopia control effect; (2) how to balance the appearance transparency and optical scattering (or contrast reduction) and increase the stimulation to the retina without obviously affecting the appearance; (3) how to flexibly implement multiple degree partition and high order defocus design on the same lens to meet the needs of different age, different myopia degree and different vision of people. SUMMARY

[0004] The utility model aims at the three problems to be improved in the background art, and further provides a microlens, high order defocus lens and glasses using the microlens, which combines multi-arc segment microlens and high order defocus microlens, can realize the high order defocus characteristics of the microlens partitioning light addition and retina contrast inhibition, can enhance the stimulation to the retina and improve the myopia control effect of different people.

[0005] In order to achieve the above technical purposes, the technical scheme adopted by the present application is as follows: In a first aspect, the utility model provides a microlens, which is formed by splicing at least two arc surfaces with different curvatures.

[0006] Preferably, the arc surfaces are 2~4, and further preferably 2~3.

[0007] Preferably, the curvature of the arc surface located at the top layer is greater than that of the other arc surfaces; and / or, the diameter of the arc surface at the top layer is 0.2~1.0mm, and preferably 0.3~0.6mm.

[0008] Preferably, the light addition of the arc surface at the top layer is 2~4D higher than that of the other arc surfaces.

[0009] Preferably, in the microlens, the add power of the topmost toric mirror is +5D~+9D, and the add power of the other toric mirrors is +2D~+5D; or, in the microlens, the add power of the topmost toric mirror is -6D~+1D, and the add power of the other toric mirrors is +2D~+5D.

[0010] Preferably, the surface of the microlens is spherical, aspherical or free-form; and / or, the diameter of the microlens ranges from 0.5~2.0mm, further preferably from 0.8~1.2mm.

[0011] In the second aspect, the utility model provides a kind of high-order defocus lens, comprising: base lens, and a plurality of first aspect described microlens being arranged on the base lens, the base lens is divided into optical area and the microlens area around the optical area, and the microlens area is provided with the microlens.

[0012] Preferably, the microlens is arranged in multiple layers around the optical area, and each layer of microlens is arranged in a ring shape.

[0013] Preferably, the plane profile of the base lens, the microlens area and the optical area are all circular, the diameter of the base lens ranges from 50~90mm, further preferably from 60~80mm; the diameter of the microlens area ranges from 20~60mm, further preferably from 30~50mm; and the diameter of the optical area ranges from 5~15mm, further preferably from 6~9mm.

[0014] In the third aspect, the utility model provides a kind of glasses, comprising glasses frame and the high-order defocus lens as described in the second aspect fixed on the glasses frame.

[0015] Compared with the prior art, the utility model has the following beneficial effects: The utility model discloses a microlens formed by splicing a plurality of toric mirrors with different curvatures, which can realize different add power distribution of the center and the periphery on the same microlens, and can generate stray light at the splicing position of the toric mirrors, thereby enhancing the defocus signal and contrast suppression. In the high-order defocus lens and glasses formed by the microlens, the curvature centers of the spliced toric mirrors can be arranged eccentrically, thereby realizing different eccentric modes of the microlens and high-order defocus characteristics, providing stronger positive defocus signal for the specific visual field direction of different users, and further improving the myopia control effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Figure 1 is a structural schematic view of a microlens of the utility model (formed by splicing two toric mirrors), wherein A is the optical axis of the connecting line of the curvature centers of the two toric mirrors, and B is the non-collinear line of the connecting line of the curvature centers of the two toric mirrors and the optical axis of each toric mirror.

[0017] Figure 2 Other structure schematic view of micro-lens of the utility model (formed by 3 arc mirrors splicing), wherein, A is that 3 arc mirror curvature center connecting line and respective optical axis are same straight line;B is that 3 arc mirror curvature center connecting line is same straight line, and curvature center connecting line is compared respective optical axis and all inclines certain angle;C is that 3 arc mirror curvature center connecting line is 3 different straight lines, and with respective optical axis all inclines certain angle, produces multi-center eccentric structure.

[0018] Figure 3 First structure schematic view of high-order defocus lens of the utility model.

[0019] Figure 4 For Figure 3 Side view structure schematic view of high-order defocus lens shown.

[0020] Figure 5 Second structure schematic view of high-order defocus lens of the utility model.

[0021] Figure 6 For Figure 5 Side view structure schematic view of high-order defocus lens shown.

[0022] Figure 7 Third structure schematic view of high-order defocus lens of the utility model.

[0023] Figure 8 For Figure 7 Side view structure schematic view of high-order defocus lens shown.

[0024] Figure 9 Fourth structure schematic view of high-order defocus lens of the utility model.

[0025] Figure 10 For Figure 9 Side view structure schematic view of high-order defocus lens shown.

[0026] Figure 11 Two distribution mode schematic views of micro-lens area of high-order defocus lens of the utility model, wherein, A is that the outline of wave-shaped ring band in circumferential direction presents continuous wave crest and wave trough of same trend;B is that the wave trough in adjacent two wave-shaped ring bands is staggered along circumferential direction.

[0027] Figure 12 RMS contrast test result of the utility model, wherein, abscissa is spatial frequency, ordinate is RMS contrast.

[0028] Figures 1-10In the diagram, 1-microlens, 2-topmost curved mirror, 3-other curved mirrors, 4-basic lens, 5-optical axis, 6-center of curvature, 7-line connecting the centers of curvature. Detailed Implementation

[0029] In the description of this utility model, it should be noted that unless specific conditions are specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all commercially available conventional products.

[0030] In this embodiment of the invention, the concept of added power is as follows: In high-end defocused lenses or eyeglasses, the prescription focal power of the optical zone of the base lens for distance vision is used as a reference, and the difference between the microlens zone and the reference is the "added power". For example: the refractive power of the optical zone of the base lens is -3D. A microlens formed by splicing two curved mirrors with different curvatures has a refractive power of +4D for the top curved mirror, so the added power is +7D, i.e., +4D - (-3D) = +7D. The refractive power of the other curved mirror is +1D, so the added power is +4D, i.e., +1D - (-3D) = +4D.

[0031] In this embodiment of the invention, the concept of the optical axis is: the optical axis is the center line of the optical unit (e.g., a single curved mirror), and the optical unit (e.g., a single curved mirror) is symmetrical about the optical axis.

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The description is for explanation and not limitation of the present invention.

[0033] This embodiment of the invention provides a microlens formed by splicing together at least two curved mirrors with different curvatures, with all the curved mirrors forming at least one optical axis. The curved mirrors are directly connected without a smooth transition to retain a certain degree of light scattering.

[0034] For example, there are 2, 3, or 4 curved mirrors, preferably 2 or 3. Wherein, such as Figure 1 As shown, a microlens formed by splicing two curved mirrors vertically can have one or two optical axes. That is, the line connecting the centers of curvature of the two curved mirrors is their respective optical axis, or the line connecting the centers of curvature of the two curved mirrors may deviate from their respective optical axes. For example... Figure 2 As shown, a microlens formed by splicing three curved mirrors can have one to three optical axes. That is, the line connecting the curvature centers of the three curved mirrors in pairs is their respective optical axis, or only one of the lines connecting the curvature centers of the three curved mirrors in pairs overlaps with the optical axes of two of the curved mirrors, or the lines connecting the curvature centers of the three curved mirrors in pairs are all deviated from their respective optical axes.

[0035] For example, the diameter of the microlens ranges from 0.5 to 2.0 mm, preferably from 0.8 to 1.2 mm.

[0036] In a preferred embodiment of this invention, the curvature of the topmost curved mirror is set to be greater than that of the other curved mirrors. Specifically, when the microlens is used to fabricate a lens for myopia control, the added power of the topmost curved mirror is 2D to 4D lower than that of the other curved mirrors. Preferably, the added power of the topmost curved mirror is generally set to +5D to +9D, and the added power of the other curved mirrors is generally set to +2D to +5D. Furthermore, the diameter of the topmost curved mirror ranges from 0.2 to 1.0 mm, preferably from 0.3 to 0.6 mm.

[0037] Regarding the power setting of curved mirrors, a specific example is as follows: In a microlens composed of two curved mirrors with a diameter of approximately 1.2 mm, and the line connecting their curvature centers as their respective optical axes, the uppermost curved mirror has a diameter of 0.5 mm and a power of +7D; the lower, annular region of 0.5 mm to 1.2 mm curved mirrors has a power of +4D. In this example, the upper curved mirror has a power 3D higher than the lower curved mirror, forming a multi-segment defocus design with "high in the center and low in the periphery." This setting, which provides stronger defocus in the central field of view, a certain amount of defocus in the peripheral field of view, and maintains a consistent optical axis throughout the microlens, makes it easy to arrange microlenses on the overall lens. This not only meets the requirements of optometry design but also allows for flexible adjustment of the curvature radius (or aspherical parameters) and diameter ratio of each segment according to actual needs, to obtain different power or refractive power distributions. This zonal optical design can achieve richer and more refined defocus and scattering effects.

[0038] For example, the individual curved mirrors in the microlens can be designed to increase or decrease in power according to different needs. Taking a microlens formed by splicing three microlenses with different curvatures as an example, the power of the top curved mirror can be set to +5D, the second curved mirror to +4D, and the third curved mirror to +3D; or, the power of the top curved mirror can be set to -5D, the second curved mirror to +2D, and the third curved mirror to +3D. Increasing or decreasing power can produce a "myopic defocus" or "positive defocus" effect. When the axial length of the eye deviates during viewing, the peripheral retina can receive a positive defocus signal from these microlenses, further inhibiting the excessive growth of the anteroposterior diameter of the eyeball.

[0039] For example, the surface of the microlens is spherical, aspherical, or freeform. Aspherical microlenses are usually rotationally symmetric surface microlenses composed of conic sections, with the axis of rotational symmetry of the conic section being the optical axis of the microlens. The surface of the microlens can also be a freeform surface obtained by rotating any curve around an axis. The surface of the microlens can be customized according to requirements, and this embodiment of the present invention does not limit this.

[0040] For example, the material used to fabricate microlenses needs to have low surface energy and hydrophobicity, exhibit good mechanical and thermal properties at high temperatures, and provide good surface finish. Commonly chosen materials include polydimethylsiloxane (PDMS), polymethyl methacrylate (PMMA), photoresist, and silicon dioxide (SiO2).

[0041] For example, the fabrication process of the microlens of this utility model generally includes the following steps. The entire process is a conventional technique in this field, and the fabrication process is not limited to this: (1) Microlens mold fabrication: Using ultra-precision turning, laser direct writing or nanoimprinting technology, a microlens structure with multiple curved mirrors spliced ​​together is processed on the surface of the metal / glass mold; in addition, for high-order defocused lenses, the curvature center position of each curved mirror in the microlens must be predefined in the CNC program.

[0042] (2) Lens molding: Optical resin is injected into a pre-made microlens mold by injection molding or casting, and then film layer imprinting is performed to form a microlens structure with multiple curved lens layers imprinted between them.

[0043] (3) The last step is usually the preparation of functional film layers for microlenses. For example, AR coating can reduce reflection and improve light transmission; anti-blue light / anti-ultraviolet film is a targeted functional film; anti-scratch coating can improve surface durability.

[0044] The imaging principle and optical effect of this microlens are as follows: 1) Reduces retinal imaging contrast: The multi-segment splicing method, with its direct connection between segments, optically creates some scattering and spectral diffusion; while the off-center / tilted design of the curvature center line relative to the optical axis makes the imaging of light on the peripheral retina more complex after passing through the microlens, which helps to reduce peripheral contrast. This design method ensures that the lens is relatively transparent overall while significantly reducing the imaging contrast in the peripheral area.

[0045] 2) Provides stronger peripheral retinal myopic defocus: On the one hand, if all arc segments are designed with positive diopter, the different segments form a superimposed range of positive refractive power, resulting in cumulative positive defocus; on the other hand, the off-center / tilted design of the line connecting the curvature centers and the optical axis can provide higher focal power in the off-center direction, thereby improving the defocus effect. When the eyeball rotates or focuses on off-axis targets, these microlenses can effectively stimulate the peripheral retina and inhibit excessive axial growth.

[0046] 3) Diversified optical zone control: By splicing curved mirrors with different curvatures (addition power), the same arc segment can exhibit different effective refractive power at different viewing angles, thereby meeting the personalized needs of different myopia degrees or different age groups.

[0047] This utility model embodiment also provides a high-order defocus lens, including: a base lens, and microlenses disposed on the base lens. The base lens is divided into an optical area and a microlens area surrounding the optical area. The microlens area is used to house all the arranged microlenses.

[0048] For example, the outer contours of the base lens, the microlens area, and the optical area are all circular. The diameter of the base lens ranges from 50 to 90 mm, preferably 60 to 80 mm; the diameter of the microlens area ranges from 20 to 60 mm, preferably 30 to 50 mm; and the diameter of the optical area ranges from 5 to 15 mm, preferably 6 to 9 mm. The optical area is designed to meet the requirement of a clear field of vision directly in front.

[0049] For example, microlenses are arranged in multiple layers around the optical region, with each layer of microlenses arranged in a ring shape, as shown in the reference. Figure 11 Two different arrangement methods are given as examples: The first arrangement method, such as Figure 11 In Figure A, the microlens region has multiple wavy rings surrounding the central optical region, and these rings are arranged concentrically on the base lens. Each wavy ring consists of a series of alternating protrusions and depressions, with smooth transitions between adjacent protrusions and depressions. This results in the wavy rings exhibiting a continuous pattern of peaks and troughs in the circumferential direction (i.e., the circular direction).

[0050] The second arrangement method, such as Figure 11 In Figure B, the microlens region also has multiple wavy rings. The structural difference between it and Figure A is that the peaks of two adjacent wavy rings are staggered along the circumferential direction (i.e., the circular direction), and the troughs of two adjacent wavy rings are staggered along the circumferential direction (i.e., the circular direction).

[0051] The arrangement of the microlenses on the base lens of this invention is not limited to the above two types; there are also concentric ring arrangements, beaded radial arrangements, etc.

[0052] The following are some specific examples of the high-order defocus lens of this utility model: Figure 3 and Figure 4 This is a schematic diagram of the structure of the first type of high-order defocus lens according to an embodiment of the present invention. (Refer to...) Figure 3 In high-order defocused lenses, each microlens is formed by splicing two curved mirrors vertically, and the line connecting the centers of curvature of the two curved mirrors is their respective optical axis. (Reference) Figure 4 Multiple microlenses arranged on the base lens (arranged in the following way) Figure 11 The optical axes of A) intersect at a point on the side of the base lens closest to the human eye.

[0053] Figure 5 and Figure 6 This is a schematic diagram of the structure of a second type of high-order defocus lens according to an embodiment of the present invention. (Refer to...) Figure 5 In high-order defocused lenses, each microlens is formed by splicing three curved mirrors vertically, and the lines connecting the centers of curvature of each pair of the three curved mirrors form the same straight line, but each is offset from its respective optical axis. (Reference) Figure 6 Multiple microlenses arranged on the base lens (arranged in the following way) Figure 11 The optical axes of (A) intersect at three points on the side of the base lens closest to the human eye.

[0054] Figure 7 and Figure 8 This is a schematic diagram of the structure of a third type of high-order defocus lens according to an embodiment of the present invention. (Refer to...) Figure 7 In high-order defocused lenses, each microlens is formed by splicing three curved mirrors vertically. The lines connecting the centers of curvature of these three curved mirrors in pairs form three different straight lines, but only one of these lines overlaps with the optical axis of two of the curved mirrors. (Reference) Figure 8 Multiple microlenses arranged on the base lens (arranged in the following way) Figure 11 The optical axes of A) intersect at two points on the side of the base lens closest to the human eye.

[0055] Figure 9 and Figure 10 This is a schematic diagram of the structure of a third type of high-order defocus lens according to an embodiment of the present invention. (Refer to...) Figure 9 In high-order defocus lenses, there are two types of microlenses: one type consists of two curved mirrors joined vertically, with the line connecting the centers of curvature of the two curved mirrors forming their respective optical axes; the other type consists of three curved mirrors joined vertically, with the line connecting the centers of curvature of the three curved mirrors forming their respective optical axes. (Reference) Figure 10 Multiple microlenses arranged on the base lens (arranged in the following way) Figure 11 The optical axes of A) intersect at two points on the side of the base lens closest to the human eye.

[0056] Will Figure 3 and Figure 4 The high-end defocus lens shown was subjected to an RMS contrast test. The test method was as follows: Testing tools: CCD imaging device; Lens fixture: 72mm lens groove with a 5mm hole in the center as the pupil; RMS contrast ratio calculation formula: ,in, : Represents RMS contrast ratio (standard deviation of pixel intensity values); N : Represents the total number of pixels in the image; : Represents the first The intensity value of each pixel; : Represents the average intensity value of all pixels in the image. RMS contrast, on the other hand, focuses more on the statistical characteristics of the entire image.

[0057] Measurement method: Step 1: Prepare two high-order defocus lenses, one of which is the present invention. Figure 3 and Figure 4 The given lens, in this high-order defocus lens, has the following specific parameters for each unit: the diameter of the base lens is 80mm, the diameter of the microlens area is 50mm, and the diameter of the optical area is 9mm; the refractive power of the optical area is -3D; among the microlenses, the diameter of the top layer curved mirror is 0.6mm, and the diameter of each individual microlens is 1.2mm. The refractive power of the top layer curved mirror is +4D, and the added power is +7D; the refractive power of the other curved mirror is +1D, and the added power is +4D; both curved mirrors are spherical microlenses; in the 10 wavy rings formed by the microlens area, within each wavy ring, two adjacent microlenses are tangent, and the distance R between two adjacent wavy rings satisfies: R = 4 × D, where D is the diameter of the microlens.

[0058] Another one is a high-order defocus lens obtained by the method disclosed in patent CN202311567282.9. Its microlens area uses a single-layer spherical microlens with a diameter of 1.2mm and a diopter of +4D. Other parameters are the same as above.

[0059] First, place the lens to be tested in the center of the fixture, then fix the fixture to the front of the camera (use a UV filter to protect the lens), and place the monitor in front of the fixture; Step 2: Adjust the camera magnification until the pupil area fills the field of view and there are no shadows obstructing the view; display the striped visual target on the monitor, manually adjust the camera focus, and lock all parameters after focusing is complete, ... Step 4: Adjust the magnification of the striped target to 1x, 1.50x, 2.00x, 3.00x, 4.00x, 5.00x, 6.00x, 7.00x, 8.00x, and take a picture at each magnification to obtain 9 images in sequence: C1, C2, C3, ..., C9; Step 5: Elevate the lens under test into the pad, raising it by 10mm. Keep all settings and parameters unchanged, and photograph the striped target again. Adjust the magnification to 1x, 1.50x, 2.00x, 3.00x, 4.00x, 5.00x, 6.00x, 7.00x, and 8.00x, taking pictures at each magnification to obtain 9 images in sequence: P1, P2, P3, ..., P9. Step 6: In the above contrast measurement procedure, the RMS contrast ratio is calculated by pairing (C1,P1), (C2,P2), (C3,P3)...(C9,P9) using the formula. This calculation process is a standard data processing procedure and will not be explained in detail here. The calculation results are shown in Table 1 and... Figure 12 As shown.

[0060] Table 1

[0061] Through Table 1 and Figure 12 As can be seen, compared with the high-order defocus lens of CN202311567282.9, the contrast of the high-order defocus lens of this invention can be further reduced. In summary, the microlens of this invention can reduce imaging contrast compared with existing single-layer spherical microlenses, especially in the mid-to-low frequency region, where it can further reduce contrast.

[0062] Furthermore, this embodiment of the invention also provides eyeglasses, including an eyeglass frame and a high-order defocus lens fixed to the eyeglass frame. The eyeglasses provided by this embodiment of the invention possess the corresponding beneficial effects of the high-order defocus microlens lens provided by this embodiment of the invention, which will not be elaborated further here.

[0063] In summary, this invention combines multi-arc microlenses with high-order defocus microlenses, providing a novel approach for myopia control frame lenses: firstly, by splicing multiple arc segments, peripheral scattering and defocusing effects are improved; secondly, by eccentricating or tilting the optical axis of the microlenses, high-order defocusing is achieved and stronger or directional positive defocus is generated; thereby simultaneously reducing the contrast of peripheral retinal imaging and providing a more effective myopia suppression signal.

[0064] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A microlens, characterized in that, It is formed by splicing together at least two curved mirrors with different curvatures, and all the curved mirrors form at least one optical axis.

2. The microlens according to claim 1, characterized in that, The number of curved mirrors is 2 to 4.

3. The microlens according to claim 1, characterized in that, There are 2 to 3 curved mirrors.

4. The microlens according to any one of claims 1 to 3, characterized in that, The curvature of the topmost curved mirror is greater than that of the other curved mirrors; and / or, the diameter of the topmost curved mirror ranges from 0.2 to 1.0 mm.

5. The microlens according to claim 4, characterized in that, The diameter of the topmost curved mirror ranges from 0.3 to 0.6 mm.

6. The microlens according to claim 4, characterized in that, The top curved mirror has a higher light intensity of 2-4D compared to other curved mirrors.

7. The microlens according to claim 6, characterized in that, In the microlens, the top curved mirror has an added power of +5D to +9D, and the other curved mirrors have an added power of +2D to +5D; or, in the microlens, the top curved mirror has an added power of -6D to +1D, and the other curved mirrors have an added power of +2D to +5D.

8. The microlens according to claim 1, characterized in that, The surface of the microlens is spherical, aspherical, or freeform; and / or, the diameter of the microlens is in the range of 0.5 to 2.0 mm.

9. The microlens according to claim 8, characterized in that, The diameter of the microlens ranges from 0.8 to 1.2 mm.

10. A high-order defocus lens, characterized in that, include: A base lens, and a plurality of microlenses as described in any one of claims 1 to 9 disposed on the base lens, wherein the base lens is divided into an optical region and a microlens region surrounding the optical region, and the microlens is disposed in the microlens region.

11. The high-order defocus lens according to claim 10, characterized in that, The microlenses are arranged in multiple layers around the optical area, with each layer of microlenses arranged in a ring.

12. The high-order defocus lens according to claim 10 or 11, characterized in that, The planar contours of the base lens, the microlens region, and the optical region are all circular. The diameter of the base lens ranges from 50 to 90 mm; the diameter of the microlens region ranges from 20 to 60 mm; and the diameter of the optical region ranges from 5 to 15 mm.

13. The high-order defocus lens according to claim 12, characterized in that, The diameter of the base lens ranges from 60 to 80 mm; the diameter of the microlens area ranges from 30 to 50 mm; and the diameter of the optical area ranges from 6 to 9 mm.

14. A pair of eyeglasses, characterized in that, Includes an eyeglass frame and a high-order defocus lens as described in any one of claims 10 to 13, fixed to the eyeglass frame.

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