Asymmetric multi-point out-of-focus auxiliary lens and glasses
By designing an optical lens group with asymmetric defocus amount in the second refractive area of the multi-point defocus lens, the problems of high cost of existing lenses and insufficient design symmetry are solved, and better myopia suppression effect and economy are achieved.
Patent Information
- Application Number
- CN202421262968.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing multi-point defocus lenses are costly and have insufficient design symmetry, which cannot fully meet the individual's vision needs, resulting in insufficient targeting.
An asymmetric multi-point defocus auxiliary lens is designed, the lens surface includes a first refractive area and a second refractive area. The second refractive area is designed with an optical lens group with an asymmetric defocus amount, and the overall defocus amount is asymmetric about the geometric center.
Through the asymmetric design, the development of refractive errors in the eyes can be better suppressed and myopia can be delayed. The auxiliary lenses are removably connected to the main glasses, making them highly versatile and reduce the economic burden.
Smart Images
Figure CN222580348U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of glasses, and in particular to an asymmetric multi-point defocus auxiliary lens and glasses. Background Art
[0002] Multi-point defocus lenses are one of the popular products used for the prevention and control of myopia among teenagers in recent years. They can convert the hyperopic defocus around the retina into myopic defocus, thereby inhibiting the growth of the eye axis and slowing down the progression of myopia.
[0003] At present, the mainstream products of multi-point defocus lenses on the market mostly divide the lenses into a correction area and a multi-point defocus intervention area. The correction area is used to correct the refractive error of the eyes, and the multi-point defocus intervention area is used to inhibit the development of refractive error of the eyes. That is to say, the correction area of the lens has myopia, and the multi-point defocus intervention area is a defocus area that has the effect of inhibiting the deepening of myopia. Lenses with this structure have the following problems: 1. This type of lens is relatively expensive. When the wearer's vision changes, it needs to be remade, which adds an economic burden to the user. 2. Due to the manufacturing process and universal requirements of this type of lens, the degree change is usually symmetrical around the geometric center of the lens. Everyone's eyes have unique vision and field of view characteristics. A completely symmetrical design may not fully meet individual needs and cannot provide the best visual correction for everyone.
[0004] In summary, existing multi-point defocus lenses have technical problems of high cost and lack of specificity. Utility Model Content
[0005] In view of the shortcomings of the existing methods, the present application proposes an asymmetric multi-point defocus auxiliary lens and glasses to solve the technical problems of high cost and lack of specificity in the existing technology.
[0006] In a first aspect, the embodiments of the present application provide an asymmetric multi-point defocus auxiliary lens and glasses, including a lens body and an optical lens;
[0007] The surface of the lens body comprises a first refraction area and a second refraction area, wherein the first refraction area covers the geometric center of the lens body, and the second refraction area at least partially surrounds the first refraction area;
[0008] A plurality of optical lenses are covered on the second refractive region of the lens body, and the plurality of optical lenses are arranged along at least two different radial directions to form a first lens group and a second lens group respectively;
[0009] The first lens group and the second lens group are arranged in different ways, and / or the defocus amount variation ranges of the plurality of optical lenses in the first lens group and the second lens group are different.
[0010] In some embodiments of the present application, the spacing between adjacent optical lenses in the first lens group is not equal to the spacing between adjacent optical lenses in the second lens group.
[0011] In some embodiments of the present application, at least one of the diameter, curvature and sagittal height of the two optical lenses at symmetrical positions in the first lens group and the second lens group is not equal, and the defocus amounts of the two optical lenses at symmetrical positions are not equal.
[0012] In some embodiments of the present application, the plurality of optical lenses start from the edge of the first refractive area, pass through the second refractive area, and extend toward the edge of the lens body, and the arrangement of the plurality of optical lenses includes one or more of being independent of each other, crossed with each other, and connected with each other.
[0013] In some embodiments of the present application, the optical lens is a micro convex lens, and the refractive form of the micro convex lens is a spherical lens or a cylindrical lens.
[0014] In some embodiments of the present application, when the refractive form of the micro-convex lens is a spherical lens, the refractive power of the micro-convex lens is between +2.00D and +6.50D.
[0015] In some embodiments of the present application, when the refractive form of the micro convex lens is a cylindrical lens, the refractive power of the micro convex lens is between +4.00D and +12.00D.
[0016] In some embodiments of the present application, the gaps between adjacent optical lenses in the first refractive area and the second refractive area are both plano areas with constant refractive power, the refractive power of the first refractive area is a constant zero degree, and the inner diameter of the first refractive area is not less than 5 mm and not more than 15 mm.
[0017] In a second aspect, an embodiment of the present application further provides a pair of glasses, comprising a main pair of glasses and an asymmetric multi-point defocus auxiliary lens as described in any embodiment of the first aspect, wherein the asymmetric multi-point defocus auxiliary lens is covered on one side of the main pair of glasses and is detachably connected to the main pair of glasses.
[0018] In some embodiments of the present application, the asymmetric multi-point defocus auxiliary lens is an optical lens or an optical film.
[0019] The beneficial technical effects brought by the technical solution provided by the embodiment of the present application include: the embodiment of the present application designs an optical lens with asymmetric defocus in the second refractive area, such as different arrangement of the optical lens group in at least two radial directions, and different amplitudes of change of the defocus of the optical lens, that is, the overall defocus is asymmetric about the geometric center. For adolescents and children, adults with high refractive errors, and people with special vision needs, due to the rapid development of glasses and high correction requirements, it is not suitable for symmetrical design. The lens in this embodiment can be used to better inhibit the development of eye refractive error and delay the deepening of myopia. At the same time, the auxiliary lens can be used in conjunction with the main glasses. The main glasses are responsible for correcting the refractive error of the eyes, and the auxiliary lens plays a role in inhibiting the development of myopia. When the wearer's vision changes, only the main glasses need to be replaced, and there is no need to replace the auxiliary lens. It has strong versatility and can greatly reduce the economic burden of the user.
[0020] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0022] Figure 1 This is a schematic diagram of the structure of an asymmetric multi-point defocus auxiliary lens in an embodiment of the present application;
[0023] Figure 2 Schematic diagram of the structure of another asymmetric multi-point defocus auxiliary lens in an embodiment of the present application.
[0024] Reference numerals:
[0025] 11-first refractive area, 12-second refractive area, 121-optical lens, 21-first lens group, 22-second lens group. DETAILED DESCRIPTION
[0026] The embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the implementation methods described below in conjunction with the drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.
[0027] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "above", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements, and / or components, but does not exclude the implementation of other features, information, data, steps, operations, elements, components, and / or combinations thereof supported by the technical field. It should be understood that when we refer to an element as being "connected" to another element, the element may be directly connected to the other element, or may refer to a connection relationship between the element and the other element established through an intermediate element. In addition, the "connection" used herein may include a wireless connection.
[0028] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that the following implementation methods can refer to, learn from or combine with each other, and the same terms, similar features and similar implementation steps in different implementation methods will not be described repeatedly.
[0029] In view of the shortcomings of the existing methods, the present application proposes an asymmetric multi-point defocus auxiliary lens and glasses to solve the technical problems of high cost and lack of specificity in the existing technology.
[0030] In a first aspect, the embodiments of the present application provide an asymmetric multi-point defocus auxiliary lens and glasses, such as Figure 1~Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of an asymmetric multi-point defocus auxiliary lens in an embodiment of the present application; Figure 2 Schematic diagram of the structure of another asymmetric multi-point defocus auxiliary lens in an embodiment of the present application.
[0031] An asymmetric multi-point defocus auxiliary lens, comprising a lens body and an optical lens;
[0032] The surface of the lens body includes a first refraction area 11 and a second refraction area 12, wherein the first refraction area 11 covers the geometric center of the lens body, and the second refraction area 12 at least partially surrounds the first refraction area 11;
[0033] The plurality of optical lenses 121 are covered on the second refractive region 12 of the lens body, and the plurality of optical lenses 121 are arranged along at least two different radial directions to form a first lens group 21 and a second lens group 22 respectively;
[0034] The first lens group 21 and the second lens group 22 are arranged in different ways, and / or the defocus amount variation ranges of the plurality of optical lenses 121 of the first lens group 21 and the second lens group 22 are different.
[0035] The embodiment of the present application designs an optical lens with asymmetric defocus in the second refractive area 12, such as different arrangement of the optical lens group in at least two radial directions, and different variation ranges of the defocus of the optical lens, that is, the overall defocus is asymmetric about the geometric center. For adolescents and children, adults with high refractive errors, and people with special vision needs, the lenses in this embodiment can be used because they are not suitable for symmetrical design due to the rapid development of glasses and high correction requirements, which can better inhibit the development of eye refractive errors and delay the deepening of myopia. At the same time, the auxiliary lens can be used in conjunction with the main glasses. The main glasses are responsible for correcting the refractive errors of the eyes, and the auxiliary lens plays a role in inhibiting the development of myopia. When the wearer's vision changes, only the main glasses need to be replaced, and there is no need to replace the auxiliary lens. It has strong versatility and can greatly reduce the economic burden of the user.
[0036] In some embodiments of the present application, the spacing between adjacent optical lenses 121 in the first lens group 21 is not equal to the spacing between adjacent optical lenses 121 in the second lens group 22 .
[0037] In the present application, the defocus amounts of some optical lenses 121 in the first lens group 21 and some optical lenses 121 in the second lens group 22 are the same, but their arrangement positions are different, resulting in different overall defocus amounts of the first lens group 21 and the second lens group 22.
[0038] In some embodiments of the present application, each of the first lens group 21 and the second lens group 22 includes an optical lens 121, the two optical lenses 121 are symmetrically located with respect to the first refractive region 11, at least one of the diameter, curvature and sagittal height of the two optical lenses 121 is unequal, and the defocus amounts of the two optical lenses 121 at symmetrical positions are unequal.
[0039] In this embodiment, the arrangement positions of some optical lenses 121 in the first lens group 21 and some optical lenses 121 in the second lens group 22 are the same, but due to the different defocus amounts of a single optical lens 121 in the first lens group 21 and a single optical lens 121 in the second lens group 22, the overall defocus amounts of the first lens group 21 and the second lens group 22 are different. Symmetrical position refers to the symmetry or central symmetry between the two optical lenses about an axis.
[0040] In some embodiments of the present application, a plurality of optical lenses 121 are further included. The plurality of optical lenses 121 are covered on the second refractive area 12 of the lens body. The arrangement of the plurality of optical lenses 121 includes one or more of being independent of each other, crossed with each other, and connected with each other.
[0041] In different embodiments, the multiple optical lenses 121 may be independent of each other, may cross each other, may be connected to each other, may be partially independent and partially cross each other, may be partially independent and partially connected, or may be partially connected and partially cross each other.
[0042] In some embodiments of the present application, the plurality of optical lenses 121 start from the edge of the first refractive area 11 , pass through the second refractive area 12 , and extend toward the edge of the lens body.
[0043] In some embodiments of the present application, the gaps between adjacent optical lenses 121 in the first refractive area 11 and the second refractive area 12 are both plano areas with constant refractive power, the refractive power of the first refractive area 11 is a constant zero degree, and the inner diameter of the first refractive area 11 is not less than 5 mm and not more than 15 mm.
[0044] In this embodiment, the contour of the first refractive area 11 includes a circle, an ellipse, and a polygon. The inner diameter refers to the diameter of a circle, the major axis diameter of an ellipse, and the diameter of the circumscribed circle of a polygon.
[0045] The first refraction area 11 is not provided with an optical lens 121 , and the optical lens 121 extends outward from the edge of the first refraction area 11 .
[0046] The first refractive area 11 is a plano area with a constant refractive power, and the first refractive area 11 does not have a refractive correction function. The second refractive area 12 is a multi-point defocus refractive area with an asymmetric defocus amount design, and the second refractive area 12 has the function of asymmetrically focusing the image at a position outside the retina to inhibit the development of refractive errors of the eye.
[0047] In some embodiments of the present application, a plurality of the optical lenses 121 are arranged along at least two different radial directions to form a first lens group 21 and a second lens group 22, respectively. The arrangement modes and / or defocus amounts of the optical lenses 121 in the first lens group 21 and the second lens group 22 are different.
[0048] In this embodiment, the geometric center of the lens body is taken as the starting point, and the first auxiliary line and the second auxiliary line are drawn outward along different radial directions, and the optical lens 121 through which the first auxiliary line passes is named the first lens group 21 and the second lens group 22. The first lens group 21 and the second lens group 22 may be arranged in an asymmetric manner with respect to the geometric center, or arranged in a symmetric manner but with an asymmetric defocus design, or both arranged in an asymmetric manner and designed to be asymmetric.
[0049] In some embodiments of the present application, the optical lens 121 is a micro convex lens, and the refractive form of the micro convex lens is a spherical lens or a cylindrical lens.
[0050] In this embodiment, the plurality of micro convex lenses are evenly, regularly and orderly distributed in the second refractive area 12 .
[0051] In some embodiments of the present application, when the refractive form of the micro-convex lens is a spherical lens, the refractive power of the micro-convex lens is between +2.00D and +6.50D.
[0052] In some embodiments of the present application, when the refractive form of the micro convex lens is a cylindrical lens, the refractive power of the micro convex lens is between +4.00D and +12.00D.
[0053] In this embodiment, the refractive power of the micro convex lens is within the above range and includes two endpoint values.
[0054] In a second aspect, an embodiment of the present application further provides a pair of glasses, comprising a main pair of glasses and an asymmetric multi-point defocus auxiliary lens as described in any embodiment of the first aspect, wherein the asymmetric multi-point defocus auxiliary lens is covered on one side of the main pair of glasses and is detachably connected to the main pair of glasses.
[0055] In some embodiments of the present application, the asymmetric multi-point defocus auxiliary lens is an optical lens or an optical film.
[0056] Compared with the prior art, the application of the embodiment of the present application can at least achieve the following beneficial effects: the embodiment of the present application designs an optical lens with asymmetric defocus in the second refractive area 12, such as different arrangement of the optical lens group in at least two radial directions, and different variation ranges of the defocus of the optical lens, that is, the overall defocus is asymmetric about the geometric center. For adolescents and children, adults with high refractive errors, and people with special vision needs, due to the rapid development of glasses and high correction requirements, it is not suitable for symmetrical design. The lens in this embodiment can be used, which can better inhibit the development of eye refractive error and delay the deepening of myopia. At the same time, the auxiliary lens can be used in conjunction with the main glasses. The main glasses are responsible for correcting the refractive error of the eyes, and the auxiliary lens plays a role in inhibiting the development of myopia. When the wearer's vision changes, only the main glasses need to be replaced, and there is no need to replace the auxiliary lens. It has strong versatility and can greatly reduce the economic burden of the user.
[0057] In the description of the present application, the directions or positional relationships indicated by words such as "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the exemplary directions or positional relationships shown in the accompanying drawings. They are for the convenience of describing or simplifying the description of the embodiments of the present application, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.
[0058] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.
[0059] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection 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.
[0060] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.
[0061] The above is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the scheme of the present application, other similar implementation methods based on the technical ideas of the present application are also within the protection scope of the embodiments of the present application.
Claims
1. An asymmetric multi-point defocus auxiliary lens, characterized in that: It includes a lens body and an optical lens; The surface of the lens body comprises a first refraction area and a second refraction area, wherein the first refraction area covers the geometric center of the lens body, and the second refraction area at least partially surrounds the first refraction area; A plurality of optical lenses are covered on the second refractive region of the lens body, and the plurality of optical lenses are arranged along at least two different radial directions to form a first lens group and a second lens group respectively; The first lens group and the second lens group are arranged in different ways, and / or the defocus amount variation ranges of the plurality of optical lenses in the first lens group and the second lens group are different.
2. The asymmetric multi-point defocus auxiliary lens according to claim 1, characterized in that: The spacing between adjacent optical lenses in the first lens group is not equal to the spacing between adjacent optical lenses in the second lens group.
3. The asymmetric multi-point defocus auxiliary lens according to claim 1, characterized in that: At least one of the diameter, curvature and sagittal height of the two optical lenses at symmetrical positions in the first lens group and the second lens group is not equal, and the defocus amounts of the two optical lenses at symmetrical positions are not equal.
4. The asymmetric multi-point defocus auxiliary lens according to claim 1, characterized in that: The plurality of optical lenses start from the edge of the first refractive area, pass through the second refractive area, and extend toward the edge of the lens body. The arrangement of the plurality of optical lenses includes one or more of being independent of each other, crossing each other, and being connected to each other.
5. The asymmetric multi-point defocus auxiliary lens according to claim 1, characterized in that: The optical lens is a micro convex lens, and the refractive form of the micro convex lens is a spherical lens or a cylindrical lens.
6. The asymmetric multi-point defocus auxiliary lens according to claim 5, characterized in that: When the refractive form of the micro convex lens is a spherical lens, the refractive power of the micro convex lens is between +2.00D and +6.50D.
7. The asymmetric multi-point defocus auxiliary lens according to claim 5, characterized in that: When the refractive form of the micro convex lens is a cylindrical lens, the refractive power of the micro convex lens is between +4.00D and +13.00D.
8. The asymmetric multi-point defocus auxiliary lens according to claim 1, characterized in that: The gaps between adjacent optical lenses in the first refractive area and the second refractive area are both plano areas with constant refractive power, the refractive power of the first refractive area is a constant zero degree, and the inner diameter of the first refractive area is not less than 5 mm and not more than 15 mm.
9. A pair of glasses, characterized in that: It comprises a main pair of glasses and an asymmetric multi-point defocus auxiliary lens as described in any one of claims 1 to 8, wherein the asymmetric multi-point defocus auxiliary lens is covered on one side of the main pair of glasses and is detachably connected to the main pair of glasses.
10. The glasses according to claim 9, characterized in that: The asymmetric multi-point defocus auxiliary lens is an optical lens or an optical film.