Dynamic out-of-focus micro lens structure lens with left eye and right eye tenon-and-mortise complementation

Abstract

The application relates to a left eye and right eye tenon-and-mortise complementary dynamic out-of-focus microlens structure lens, which comprises a left eye lens and a right eye lens, the left eye lens and the right eye lens are respectively provided with an out-of-focus ring, and the out-of-focus ring structure distribution on the left eye lens and the out-of-focus ring structure distribution on the right eye lens are in complementary design. The out-of-focus ring comprises a plurality of concentrically arranged single rings, and each single ring comprises out-of-focus arc segments and arc segment gaps which are the same in number. An image seen in an arc gap area is a clear image; the out-of-focus arc section is of a convex lens structure or a concave lens structure and can provide a plurality of different diopters, so that images seen in peripheral areas except the transparent luminosity area become blurred. Dynamic defocusing is achieved through a nasal bitamporal defocusing amount asymmetry and a double-eye defocusing area and transparent area complementation method, and therefore the problem that the myopia control effect is reduced due to long-time wearing is solved.

Description

Technical Field

[0001] The present application relates to the technical field of myopia prevention and control, and in particular to a dynamic defocus micro-lens structure lens with complementary mortise and tenon joints for left and right eyes. Background Art

[0002] In 2007, Tse DY's research team found in a chicken experiment that the fundus retina has a phenomenon of "growing towards the image", that is, if the fundus image is in front of the retina, it will induce the eyeball to grow forward, and if the image is behind the retina, it will induce the eye axis to grow backward [1]. At the same time, the study also found that if the same amount of positive defocus and negative defocus are given at the same time, the positive defocus effect is stronger. Based on the above research, in recent years, major companies have successively launched some optical lenses with positive microlens structures, which are mainly used for myopia prevention and control in adolescents and inhibiting the growth of the eye axis.

[0003] The earliest one was the "Multi-Zone Forward Optical Defocus Lens (DIMS)" developed by a team from the Hong Kong Polytechnic University and produced by Hoya Optics. The lens has a blank transparent area of ​​about 9mm in the center, and a microlens filling area with a diameter of 33mm next to it. Each microlens is circular with a diameter of about 1mm, and there are 396 small lenses in total [2]. Subsequently, Essilor also launched a lens with high aspheric microlens star control technology (HALT). It is also a circular microlens design with a highly aspheric curved surface. A total of 1021 small lenses with a diameter of about 1mm form 11 concentric rings, surrounding a transparent optical zone of about 9mm in the center. The defocus brightness of these concentric rings of microlenses gradually changes from +3.50D to +6.00D from the inside to the outside [3].

[0004] Later in May 2022, Zeiss Optics also launched a lens based on concentric annular microcylindrical lens technology (CARE). The transparent central optical zone of this design is 7-9mm, surrounded by 31 concentric annular zones. The zone and interval are both 0.5mm. The cylindrical defocus of the annular zone is about 8D, and the equivalent spherical defocus is about 4D.

[0005] The above lists the design ideas of existing microlens technology. These designs all follow the theory of retinal peripheral defocus, adding positive microlenses or toric lenses outside the retinal macular area to produce preretinal defocus in different areas. In actual wearing and use, they do play a role in preventing and controlling myopia and inhibiting axial length growth.

[0006] According to the conclusion of the literature published in 2020 by Professor Earl L. Smith of the School of Optometry at the University of Houston, different areas of the retina respond differently to myopia defocus signals. Defocus within 20° around the fovea can produce the strongest myopia control effect. Combining simulated eye data and lens-eye distance conversion, it can be concluded that the 14mm diameter area in the center of the lens is the key area for defocus control. The defocus fill rate in this area is more important, which we can call the center defocus fill rate. The center defocus fill rate of existing brand lenses is approximately between 23-30%, and this ratio is expected to be further improved through design improvements.

[0007] The current optical lenses based on peripheral defocus generally reserve a relatively large transparent optical zone (8-9mm) in the central area. The purpose is to ensure that the wearer can obtain clear vision when looking straight ahead in the first eye position. However, studies have shown that the effect of peripheral defocus is related to the defocus position of the retina. The closer to the fovea, the higher the weight and the better the effect. Correspondingly, the central optical zone of the lens should be smaller. The existing 8-9mm central transparent zone has the opportunity to be further reduced, and the corresponding central defocus fill rate will be enhanced and improved.

[0008] The human retina naturally has peripheral defocus, and the nasotemporal side is asymmetric. The hyperopic defocus of the nasal retina (nasal visual field) is greater than that of the temporal retina (temporal visual field) [4]. Existing defocus lenses will show a decrease in control effect after being worn for 1-2 years, similar to the "tolerance phenomenon". This is believed to be due to the constant defocus amount, and the retinal photoreceptors have adapted over time.

[0009] 【1】Tse DY etc. Simultaneous Defocus Integration during RefractiveDevelopment. Investigative Ophthalmology&Visual Science, (2007) 48(12).pp5352-5359;

[0010] 【2】Carly Siu Yin Lam, etc. Defocus Incorporated Multiple Segments(DIMS) spectacle lenses slow myopia progression: a 2-year randomized clinical trial. Br J Ophthalmol 2020;104:363–368. doi:10.1136 / bjophthalmol-2018-313739;

[0011] 【3】Petros Papadogiannis. Etc. Comparison of optical myopia controlinterventions: effect on peripheral image quality and vision. BiomedicalOptics Express Vol. 14, No. 7 ,1 Jul 2023;

[0012] 【4】Yingying Huang, etc. Orthokeratology reshapes eyes to be less prolate and more symmetric. Contact Lens and Anterior Eye 45 (2022) 101532. Summary of the invention

[0013] In view of the shortcomings of the prior art, the purpose of this application is to provide a dynamic defocus microlens structure lens with complementary mortise and tenon joints for the left and right eyes, which achieves dynamic defocus through the asymmetry of the nasal temporal defocus amount and the complementarity of the defocus area and transparent area of ​​both eyes, thereby alleviating the problem of decreased myopia control effect after long-term wear.

[0014] The above application objectives of this application are achieved through the following technical solutions:

[0015] A dynamic defocus microlens structure lens with complementary mortise and tenon joints for left and right eyes comprises a left eye lens and a right eye lens, wherein the left eye lens and the right eye lens are respectively provided with defocus rings, and the structural distribution of the defocus ring on the left eye lens is complementary to the structural distribution of the defocus ring on the right eye lens.

[0016] As a further technical solution of the present application: the defocus ring includes a plurality of concentrically arranged single rings, each of the single rings includes the same number of defocus arc segments and arc segment gaps.

[0017] As a further technical solution of the present application: the image seen in the area of ​​the arc segment gap is a clear image;

[0018] The defocused arc segment is a convex lens structure or a concave lens structure, which can provide a plurality of different refractive powers, so that the image seen in the peripheral area except the transparent light area becomes blurred.

[0019] As a further technical solution of the present application: in the left-eye lens or the right-eye lens, the innermost ring of the defocus ring is a 10° defocus arc segment, separated by a 50° arc segment gap;

[0020] In the left-eye lens or the right-eye lens, the innermost ring of the defocus ring is a 10° arc segment gap, separated by a 50° defocus arc segment.

[0021] As a further technical solution of the present application: in the left-eye lens or the right-eye lens, the microstructure ring bands of the defocus ring are divided into odd-numbered ring bands and even-numbered ring bands, and are distributed sequentially from the inside to the outside;

[0022] In said singular annulus;

[0023] The first ring belt starts from 90° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°;

[0024] The next odd-numbered ring belt is 10° clockwise from the previous odd-numbered ring belt as the starting point, and there are 6 clockwise arrays;

[0025] The length of the defocused arc segment microstructure of all odd-numbered annuli is the arc length on the annular aperture corresponding to the angle of 50°, and the remaining 10° is the arc segment gap;

[0026] In said even-numbered ring band;

[0027] The second ring belt starts from 90° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°;

[0028] The next even-numbered ring belt is 20° clockwise from the previous even-numbered ring belt and has 6 clockwise arrays as the starting point;

[0029] The length of the defocused arc segment microstructure of all even-numbered annuli is the arc length on the annular aperture corresponding to an angle of 10°, and the remaining 50° is the arc segment gap.

[0030] As a further technical solution of the present application: in the left-eye lens or the right-eye lens, the microstructure ring bands of the defocus ring are divided into odd-numbered ring bands and even-numbered ring bands, and are distributed sequentially from the inside to the outside;

[0031] In said singular annulus;

[0032] The first ring belt starts from 100° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°;

[0033] The next odd-numbered ring belt is 10° clockwise from the previous odd-numbered ring belt as the starting point, and there are 6 clockwise arrays;

[0034] The length of the defocused arc segment microstructure of all odd-numbered annuli is the arc length on the annuli aperture corresponding to the angle of 10°, and the remaining 50° is the arc segment gap;

[0035] In said even-numbered ring band;

[0036] The second ring belt starts from 80° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°;

[0037] The next even-numbered ring belt is 20° clockwise from the previous even-numbered ring belt and has 6 clockwise arrays as the starting point;

[0038] The length of the defocused arc segment microstructure of all even-numbered annuli is the arc length on the annular aperture corresponding to an angle of 50°, and the remaining 10° is the arc segment gap.

[0039] As a further technical solution of the present application: in each of the single rings, the overall array of each of the defocused arc segments and the corresponding arc segment gaps corresponds to an arc length of 30°-90°.

[0040] As a further technical solution of the present application: a transparent optical zone is provided at the center of the defocus ring, the diameter of the transparent optical zone is 6 mm, and the diameter of the defocus ring is 40 mm-60 mm.

[0041] As a further technical solution of the present application: the defocus ring has a total of 17-90 single rings, and the width of each single ring is 0.3mm-1.0mm.

[0042] As a further technical solution of the present application: in the left eye lens or the right eye lens, the defocus amount of the lens of the defocus ring close to the temporal side of the human body is greater than the defocus amount of the lens close to the nasal side of the human body.

[0043] In summary, the present application includes at least one of the following beneficial technical effects:

[0044] 1. This application discloses a dynamic defocus micro-lens structure lens with complementary mortise and tenon joints for the left and right eyes, and the central transparent optical zone of the design is smaller in diameter. The existing design is basically 8-9mm, and the present design is 6mm. At the same time, through the different complementary designs of the defocus ring structures in the lenses of both eyes, the defocus area and the transparent area are accurately complementary in the visual field of both eyes in all directions, preventing visual disturbances caused by increased defocus, and improving wearing clarity and comfort.

[0045] 2. The defocus amount of the nasal temporal microlens structure of the lens of the present application is different. According to the physiological structure of the normal human eye and the research on retinal defocus after wearing the lens, the temporal visual field (nasal retina) requires a higher defocus to achieve a better effect. Combined with the function of binocular fusion, increasing the defocus amount of the temporal side of the lens can achieve a higher defocus amount without significantly affecting peripheral vision and wearing experience.

[0046] 3. The design of existing defocus lenses is almost the same for both eyes. The two eyes of a person have the function of fusion, and the images of the two eyes can be fused into one in the brain. This application can use this feature to achieve binocular differentiation design, with the defocused area of ​​one eye corresponding to the transparent area of ​​the other eye, which can not only increase the clarity and comfort of wearing glasses, but also stimulate and exercise the binocular fusion function.

[0047] 4. The application makes the peripheral defocus lens asymmetrical on the nasal and temporal sides, increases the defocus amount on the temporal side, and thus optimizes the imaging effect of the fundus, so that after wearing it, the nasal and temporal sides of the fundus retina can achieve a basically consistent defocus effect. It can achieve dynamic defocus by asymmetric defocus amount on the nasal and temporal sides, and complementarity between the defocus area and transparent area of ​​both eyes, thereby alleviating the problem of decreased control effect after long-term wearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a schematic structural diagram of the left eye lens of this application.

[0049] Figure 2 This is a schematic diagram of the structure of the right eye lens of this application.

[0050] Figure 3 This is a schematic diagram of the structure of the defocus ring in the left eye lens of the present application.

[0051] Figure 4 This is a schematic diagram of the structure of the defocus ring in the right eye lens of the present application.

[0052] Figure 5 This is a schematic diagram of the dimensions of the defocused arc segment in this application.

[0053] Figure 6 This is a four-bit model schematic diagram of this application.

[0054] Figure 7 This is a three-dimensional comparison diagram of the defocus rings on the left and right lenses of this application.

[0055] Figure 8 It is a stereoscopic view of the defocus ring on the right lens of the present application.

[0056] Fig. 9 This is the defocus center eccentricity design diagram of this application.

[0057] Fig.10 This is the clear complementary design drawing of the binocular defocused mortise and tenon joints of this application.

[0058] Fig.11 This is a comparison chart of the structural design of the present application and two existing brands of lenses.

[0059] Fig.12 This is a diagram showing the arrangement pattern of the defocus rings on the left and right lenses of this application.

[0060] Figure numerals: 1, lens; 2, defocus ring; 21, single ring; 211, defocus arc segment; 212, arc segment gap; 3, transparent optical zone. DETAILED DESCRIPTION

[0061] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0062] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0063] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Example

[0064] Reference Figure 1 and Figure 2 , disclosed in the present application, is a dynamic defocus microlens structure lens with complementary mortise and tenon joints for left and right eyes, comprising a left eye lens and a right eye lens, wherein a defocus ring 2 is respectively provided on the left eye lens and the right eye lens, and the structural distribution of the defocus ring 2 on the left eye lens is complementary to the structural distribution of the defocus ring 2 on the right eye lens.

[0065] Reference Figure 3 and Figure 4 The defocus ring 2 is a concentric defocus ring cylinder, and the defocus ring 2 includes a plurality of concentrically arranged single rings 21, each of which includes the same number of defocus arc segments 211 and arc segment gaps 212. The defocus ring 2 has a total of 17-90 single rings 21, and the width of the single ring 21 is 0.3-1.0 mm. In this embodiment, the defocus ring 2 has 35 single rings 21, and the width of each single ring 21 is 0.5 mm (see Figure 5 ).

[0066] That is to say, multiple defocus arc segments 211 are evenly spaced to form a single ring 21, and multiple concentrically arranged single rings 21 constitute the defocus ring 2 in the present application, wherein the area of ​​the arc segment gap 211 does not have any additional structure, and the image seen is a clear image. The structure of the arc segment gap 211 is the same as the structure of the substrate of the lens 1 itself, and has the same brightness as the lens 1 itself.

[0067] In the left eye lens or the right eye lens, for example, in the present embodiment, preferably in the right eye lens, the innermost ring of the defocus ring 2 is a 10° defocus arc segment 211, separated by a 50° arc segment gap 212. In the left eye lens or the right eye lens, for example, in the present embodiment, preferably in the left eye lens, the innermost ring of the defocus ring 2 is a 10° arc segment gap 212, separated by a 50° defocus arc segment 211. In this way, it can be ensured that no matter which direction the eyes turn, one eye will be in the transparent area, and the two eyes always maintain "light and dark complementation".

[0068] Reference Figure 3 and Figure 4 Each single ring 21 is provided with 6 defocusing arc segments 211 and 6 arc segment gaps 212, each defocusing arc segment 211 and each arc segment gap 212 are 10°-50° and 50°-10° respectively, the total of the two is 60°, forming an array.

[0069] The middle of the defocus arc segment 211 is a cylindrical toroidal surface, and the two ends are made into a spherical transition connection. The radius of curvature of the spherical surface is equal to the radius of curvature of the toroidal surface interface. This setting takes into account the advantages of the defocus lens and the toroidal lens. The proportion of the defocus area around the defocus ring 2 is constant at 50%, which is convenient for the subsequent symmetrical complementation of the two eyes.

[0070] The lens 1 is designed to distinguish between the left and right eyes, wherein the defocus amount of the lens near the temporal side of the human body of the defocus ring 2 is greater than the defocus amount of the lens near the nose side of the human body. Figure 1 and Figure 2 , dynamic intelligent defocusing on the nasal temporal side, with the vertical direction of the gaze point as the boundary, the lens defocusing amount of the defocusing ring 2 close to the temporal side of the human body (temporal area, corresponding to the nasal retina) is 10D (black area), and the lens defocusing amount of the defocusing ring 2 close to the nasal side of the human body (nasal area, corresponding to the temporal retina) is 8D (red area). The defocusing arc segment 211 uses a semicircular annular cylindrical spherical surface. If the defocusing arc segment 211 crosses the center line, the defocusing amount is based on the end with a larger area, and the same defocusing arc segment 211 has the same defocusing amount.

[0071] The vertical line through the geometric center of lens 1 is used as the center to divide the lens into the nasal area and the temporal area. The defocusing power of the microlens structure in the temporal area is greater than that in the nasal area. For example, the temporal area is +10D and the nasal area is +8D.

[0072] In this embodiment, the microlens structure of the defocus ring 2 is designed to be located on the front surface of the lens 1. The idea of ​​the present application is to add an additional microlens structure to the front surface of the original lens 1, and the microlens structure is a defocus arc segment 211 of a convex lens structure or a concave lens structure, and the arc segment gap 212 is the so-called microlens gap, and no structure is added, and the lens itself is retained.

[0073] In the left-eye lens or the right-eye lens, in this embodiment, taking the left-eye lens as an example, the microstructure ring zones of the defocus ring 2 are divided into odd-numbered ring zones and even-numbered ring zones, and are distributed sequentially from the inside to the outside;

[0074] In the singular ring;

[0075] The first ring belt starts from 90° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°;

[0076] The next odd-numbered ring belt is 10° clockwise from the previous odd-numbered ring belt as the starting point, and there are 6 clockwise arrays;

[0077] The microstructure length of the defocused arc segment 211 of all odd-numbered annuli is the arc length on the aperture of the annuli corresponding to the angle of 50°, and the remaining 10° is the arc segment gap 212 (left blank);

[0078] In even-numbered rings;

[0079] The second ring belt starts from 90° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°;

[0080] The next even-numbered ring belt is 20° clockwise from the previous even-numbered ring belt and has 6 clockwise arrays as the starting point;

[0081] The microstructure length of the defocused arc segment 211 of all even-numbered annular zones is the arc length on the annular zone aperture corresponding to an angle of 10°, and the remaining 50° is the arc segment gap 212 (left blank).

[0082] In the left-eye lens or the right-eye lens, in this embodiment, taking the right-eye lens as an example, the microstructure ring zones of the defocus ring 2 are divided into odd-numbered ring zones and even-numbered ring zones, and are distributed sequentially from the inside to the outside;

[0083] In the singular ring;

[0084] The first ring belt starts from 100° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°;

[0085] The next odd-numbered ring belt is 10° clockwise from the previous odd-numbered ring belt as the starting point, and there are 6 clockwise arrays;

[0086] The microstructure length of the defocused arc segment 211 of all odd-numbered annuli is the arc length on the aperture of the annuli corresponding to the angle of 10°, and the remaining 50° is the arc segment gap 212 (left blank);

[0087] In even-numbered rings;

[0088] The second ring belt starts from 80° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°;

[0089] The next even-numbered ring belt is 20° clockwise from the previous even-numbered ring belt and has 6 clockwise arrays as the starting point;

[0090] The microstructure length of the defocused arc segment 211 of all even-numbered annular zones is the arc length on the annular zone aperture corresponding to an angle of 50°, and the remaining 10° is the arc segment gap 212 (left blank).

[0091] A transparent optical zone 3 is provided at the center of the defocus ring 2, and the optical center of the lens 1 deviates from the center of the defocus ring 2. The optical center of the lens moves 1mm-3mm from the center of the defocus ring 2 to the temporal side of the human body, and then moves 1mm-3mm downward. In this embodiment, the optical center of the lens 1 preferably moves 1mm from the center of the defocus ring 2 to the temporal side of the human body, and then moves 1mm downward. The diameter of the transparent optical zone 3 is 6mm, and the diameter of the defocus ring 2 is 40mm-60mm. In this embodiment, the diameter of the defocus ring 2 is preferably 40mm.

[0092] The present application moves the optical center of the lens away from the center of the defocus ring and utilizes the eccentric design of both eyes to make the starting defocus distance on the temporal side shorter when the eyes rotate, while the other eye still maintains a transparent visual area of ​​nearly 4 mm, and the binocular fusion state is minimized to ensure clear vision.

[0093] In order to improve the myopia control effect of the lens 1, the present application adopts a smaller transparent optical zone 3 (6mm), and moves the optical center of the lens 1 from the center of the defocus ring 2 to the temporal side by 1mm and then to the bottom by 1mm, so as to ensure that when each eye moves to the temporal side, defocusing will occur within 2mm, while the opposite eye can still remain clear (the nasal area corresponding to the opposite eye has a transparent zone of nearly 4mm). Compared with the current design with a transparent zone of nearly 4mm in all directions, this design will have a higher defocus weight.

[0094] In each single ring 21 , the overall array of each defocused arc segment 211 and each corresponding arc segment gap 212 corresponds to an arc length of 30°-90°.

[0095] The above is one example. If the arc length corresponding to the overall array of a single ring is 60°, in addition to the above embodiments, the others include: if the microstructure length of the odd-numbered ring defocused arc segment 211 is the arc length corresponding to the ring zone aperture at an angle of 20°, then the microstructure length of the even-numbered ring defocused arc segment 211 is the arc length corresponding to the ring zone aperture at an angle of 40°. Similarly, the microstructure of the 30° odd-numbered ring defocused arc segment 211 corresponds to the microstructure of the 30° even-numbered ring defocused arc segment 211, and the microstructure of the defocused arc segment 211 and the overall array of the blank area are kept to correspond to an arc length of 60°. That is to say, in each single ring 21, the overall array of each defocused arc segment 211 and the corresponding arc segment gap 212 corresponds to an arc length of 60°.

[0096] The lens 1 is provided with a horizontal positioning mark. When actually producing this product, it is necessary to add left and right eye marks and a horizontal positioning mark to the lens 1 for the convenience of subsequent assembly. The image seen in the area of ​​the arc segment gap 212 is a clear image; the defocused arc segment 211 is a convex lens structure or a concave lens structure, which can provide multiple different diopters to correct the retinal hyperopic defocus or myopic defocus, so that the image seen in the peripheral area except the transparent light area becomes blurred.

[0097] Reference Fig.12 , is a diagram showing the arrangement of the defocus rings 2 on the left and right lenses 1 of the present application. In this embodiment, the defocus arc segment 211 is a convex lens structure, which can provide multiple different diopters to correct the retinal hyperopic defocus, making the image seen in the peripheral area except the transparent light area blurred. Fig.12 The parameters are designed. According to the design of lens 1, a metal mold is first made for injection molding to make the preset front surface of lens 1. In this process, invisible marks at horizontal positions need to be added. The blank lens 1 is then turned on the rear surface to obtain the preset light intensity according to the customer's prescription, and finally cut and assembled on the glasses frame. During the assembly process, the horizontal angle, left and right eye difference, and pupil distance and pupil height need to be checked to ensure the wearing effect.

[0098] Reference Figure 6 The lens 1 of the present application adopts an eccentric dynamic defocus and mortise and tenon structure design. The maximum range of the optical center area is 6mm, the horizontal temporal side is <2mm, and the horizontal nasal side is <4mm. While ensuring the clarity of the central vision, the edge produces a defocused image the fastest. The main characteristics are fast defocusing and large peripheral defocusing. The defocusing amount of the eye side is 10D spherical cylinder (the equivalent spherical lens is greater than 5D), and the defocusing amount of the nasal side is 8D spherical cylinder (the equivalent spherical lens is greater than 4D). Through 2:4 distance division and 1:5 area ratio, a mortise and tenon sensitive clear complementary fusion image is formed, which maximizes the retinal myopia defocus stimulation and achieves the purpose of myopia prevention and control.

[0099] Reference Figure 7 and Figure 8The defocusing arc segment 211 and the spherical cylinder are combined. The defocusing ring 2 on the lens 1 of the present application is a combination of the defocusing arc segment 211 and the defocusing spherical surface. The middle is an arc segment, and the two cross sections are spherical surfaces, forming different projections of points and lines on the fundus.

[0100] Reference Fig. 9 , the defocus center is designed to be eccentric. The lens 1 of the present application has a fully asymmetric design. The optical center of the lens 1 is at the "black dot" position, and the defocus center is biased towards the "red dot" position on the upper side of the nose. The subject side quickly becomes a high-focus image at 2mm, and the nose side produces a defocused image at 4mm, forming a defocus stimulation in a shorter time and distance, which is better than the traditional large light area defocus design.

[0101] Reference Fig.10 The lens 1 of the present application is designed for binocular defocus and clear complementarity. No matter which direction it turns, the defocus area of ​​one eye corresponds to the transparent area of ​​the other eye. Through the arc segments of different lengths of the left and right and odd and even circles, images with different brightness and darkness are formed, which just complements the brightness and clarity of the left and right eyes.

[0102] Reference Fig.11 Existing studies have shown that the defocus effect in the 20° range of the fundus macular area is the most obvious and has the highest weight. The simulated eye data is calculated to be equivalent to the central diameter of the lens 1 of about 14m, so the defocus lens filling rate in this area is particularly important. The central area of ​​the lens 1 of this application has a unique small radius design, so the center filling rate can be as high as 41%, surpassing most defocus lenses 1. By reducing the central transparent area and the eccentric design of the defocus center, the center defocus filling rate can be increased from the current 23%-30% to about 41%.

[0103] Where, center filling rate = ×100%.

[0104] The implementation principle of the present application is as follows: the present application discloses a dynamic defocus micro-lens structure lens with complementary mortise and tenon joints for the left and right eyes, and the central transparent optical zone 3 designed by the present application has a smaller diameter. The existing design is basically 8-9mm, and the present design is 6mm. At the same time, through the different complementary designs of the defocus ring structures in the lenses of both eyes, the defocus area and the transparent area are accurately complementary in the visual field of both eyes in each direction, preventing the visual disturbance caused by the increase in defocus, and improving the wearing clarity and comfort. In addition, the defocus amount of the nasal temporal micro-lens structure of the lens 1 is different. According to the physiological structure of the normal human eye and the research on the retinal defocus after wearing OK glasses, the temporal visual field (nasal retina) requires a higher defocus to achieve a better effect. Combined with the function of binocular fusion, increasing the defocus amount of the temporal side of the lens 1 is expected to achieve a higher defocus amount without significantly affecting the peripheral vision and wearing experience.

[0105] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dynamic defocus micro-lens structure lens with complementary mortise and tenon joints for left and right eyes, comprising a left eye lens and a right eye lens, wherein the left eye lens and the right eye lens are respectively provided with a defocus ring (2), characterized in that: The structural distribution of the defocus ring (2) on the left eye lens and the structural distribution of the defocus ring (2) on the right eye lens are designed to be complementary.

2. The dynamic defocused micro-lens structure lens with complementary mortise and tenon joints for left and right eyes according to claim 1, characterized in that: The defocus ring (2) comprises a plurality of concentrically arranged single rings (21), and each of the single rings (21) comprises the same number of defocus arc segments (211) and arc segment gaps (212).

3. The dynamic defocused micro-lens structure lens with complementary mortise and tenon joints for left and right eyes according to claim 2, characterized in that: The image seen in the area of ​​the arc segment gap (212) is a clear image; The defocused arc segment (211) is a convex lens structure or a concave lens structure, and can provide a plurality of different refractive powers, so that the image seen in the peripheral area except the transparent light intensity area becomes blurred.

4. The dynamic defocused micro-lens structure lens with complementary mortise and tenon joints for left and right eyes according to claim 2, characterized in that: In the left-eye lens or the right-eye lens, the innermost ring of the defocus ring (2) is a 10° defocus arc segment (211) separated by a 50° arc segment gap (212); In the left-eye lens or the right-eye lens, the innermost ring of the defocus ring (2) is a 10° arc segment gap (212) separated by a 50° defocus arc segment (211).

5. A dynamic defocused micro-lens structure lens with complementary mortise and tenon joints for left and right eyes according to any one of claims 2 to 4, characterized in that: In the left-eye lens (1) or the right-eye lens (1), the microstructure ring zones of the defocus ring (2) are divided into odd-numbered ring zones and even-numbered ring zones, and are distributed in sequence from the inside to the outside; In said singular annulus; The first ring belt starts from 90° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°; The next odd-numbered ring belt is 10° clockwise from the previous odd-numbered ring belt as the starting point, and there are 6 clockwise arrays; The microstructure length of the defocused arc segment (211) of all odd-numbered annuli is the arc length on the annular aperture corresponding to the angle of 50°, and the remaining 10° is the arc segment gap (212); In said even-numbered ring band; The second ring belt starts from 90° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°; The next even-numbered ring belt is 20° clockwise from the previous even-numbered ring belt and has 6 clockwise arrays as the starting point; The microstructure length of the defocused arc segment (211) of all even-numbered annular bands is the arc length on the annular band aperture corresponding to an angle of 10°, and the remaining 50° is the arc segment gap (212).

6. A dynamic defocused micro-lens structure lens with complementary mortise and tenon joints for left and right eyes according to any one of claims 2 to 4, characterized in that: In the left-eye lens (1) or the right-eye lens (1), the microstructure ring zones of the defocus ring (2) are divided into odd-numbered ring zones and even-numbered ring zones, and are distributed in sequence from the inside to the outside; In said singular annulus; The first ring belt starts from 100° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°; The next odd-numbered ring belt is 10° clockwise from the previous odd-numbered ring belt as the starting point, and there are 6 clockwise arrays; The microstructure length of the defocused arc segment (211) of all odd-numbered annuli is the arc length corresponding to the annular aperture at an angle of 10°, and the remaining 50° is the arc segment gap (212); In said even-numbered ring band; The second ring belt starts from 80° and is distributed in 6 arrays in a clockwise direction, with each array having an angle of 60°; The next even-numbered ring belt is 20° clockwise from the previous even-numbered ring belt and has 6 clockwise arrays as the starting point; The microstructure length of the defocused arc segment (211) of all even-numbered annular bands is the arc length on the annular band aperture corresponding to an angle of 50°, and the remaining 10° is the arc segment gap (212).

7. A dynamic defocused micro-lens structure lens with complementary mortise and tenon joints for left and right eyes according to any one of claims 2 to 4, characterized in that: In each of the single rings (21), the overall array of each of the defocused arc segments (211) and the corresponding arc segment gaps (212) corresponds to an arc length of 30°-90°.

8. A dynamic defocused micro-lens structure lens with complementary mortise and tenon joints for left and right eyes according to any one of claims 2 to 4, characterized in that: A transparent optical zone (3) is provided at the center of the defocus ring (2); the diameter of the transparent optical zone (3) is 6 mm; and the diameter of the defocus ring (2) is 40 mm-60 mm.

9. A dynamic defocused micro-lens structure lens with complementary mortise and tenon joints for left and right eyes according to any one of claims 2 to 4, characterized in that: The defocus ring (2) has a total of 17-90 single rings (21), and the width of the single ring (21) is 0.3mm-1.0mm.

10. A dynamic defocused micro-lens structure lens with complementary mortise and tenon joints for left and right eyes according to any one of claims 2 to 4, characterized in that: In the left eye lens or the right eye lens, the defocus amount of the lens of the defocus ring (2) close to the temporal side of the human body is greater than the defocus amount of the lens close to the nose side of the human body.

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