Lens with optical path difference regulation and control structure
By designing orthogonal and circular microlens structures on the lens, and combining them with the central area, the defocus amount and size are set in a gradient manner, which solves the problem of insufficient contrast control in myopia control lenses and achieves better myopia control effect and central visual clarity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-12
AI Technical Summary
Existing myopia control lenses suffer from insufficient contrast control, resulting in unsatisfactory optical fidelity. Their microlens distribution is uniform and cannot meet the needs of the non-uniform arrangement of human eye cells.
A lens with adjustable optical path difference is designed, which uses microlenses arranged in an orthogonal array and a ring array to form first and second ultra-microstructure regions, respectively set on the two mirror surfaces of the lens element. Combined with the central region without microlenses, the defocus amount and size of the microlenses are set by gradient adjustment to adapt to the characteristics of human eye activity.
It generates a stronger optical path difference signal in the main direction of human eye activity, avoids optical signal blind spots, provides composite optical stimulation, improves the effect of myopia control, and at the same time ensures central visual clarity, making it suitable for patients with different degrees of myopia.
Smart Images
Figure CN224232062U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to optical lenses, specifically to a lens with an optical path difference adjustment structure. Background Technology
[0002] Myopia control lenses utilize special optical designs to focus peripheral light at specific locations in front of or behind the retina, altering retinal growth signals and slowing axial elongation. Among related technologies, myopia control lenses are primarily developed based on DOT, DIMS, and DISC technologies. DOT lenses are developed based on the theory of retinal contrast signals; DISC is a soft corneal contact technology commonly used in contact lenses; and DIMS lenses are based on peripheral defocus theory. Both DIMS and DISC lenses rely on defocus control.
[0003] In related technologies, myopia control lenses suffer from poor optical fidelity due to insufficient contrast control. The microlenses in the lenses are usually uniformly distributed in a single pattern, and the optical signal after being regulated by the microlenses is relatively simple. However, human eye cells are not uniformly arranged, which makes the performance of conventional myopia control lenses less than ideal. Therefore, there is an urgent need to propose a new type of structural lens to meet the growing demand for myopia control. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a lens with an optical path difference control structure, which solves the problems of insufficient contrast control and relatively simple optical signal control in current myopia control lenses.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] This application provides an optical path difference control structure lens, including a lens element, which includes a microlens array, and the microlens array includes:
[0007] Multiple microlenses, some of which are arranged in an orthogonal array to form the first ultrastructure region for optical path difference control;
[0008] Part of the microlenses are arranged in a ring array to form a second ultrastructure region for optical path difference control;
[0009] The first and second microstructure regions are respectively set on the two opposing mirror surfaces of the lens element.
[0010] In a preferred embodiment, a first central region without microlenses is provided on the inner side of the first microstructure region;
[0011] The inner side of the second ultrastructure region is provided with a second central region that does not contain microlenses.
[0012] In a further preferred embodiment, the optical correction centers of the first central region and the second central region are located on the same axis.
[0013] In one embodiment, the size range of the first microstructure region is larger than the size range of the second microstructure region.
[0014] In a preferred embodiment, the size range of the first central region is smaller than the size range of the second central region.
[0015] In a further preferred embodiment, the first and second ultrastructural regions can be configured independently.
[0016] In one embodiment, the size of the microlens ranges from 0.01 mm to 0.25 mm.
[0017] In a preferred embodiment, some of the microlenses have different focal points.
[0018] In one embodiment, the defocusing amount of the microlenses in the first and second ultrastructural regions is set in a gradient manner.
[0019] In a preferred embodiment, the defocusing amount De of the microlens satisfies: +4.50D ≤ De ≤
[0020] +10.00D, where D represents diopter and +10.00D is the extreme defocus value.
[0021] This invention provides a lens with an optical path difference adjustment structure. Compared with the prior art, it has the following advantages:
[0022] This application utilizes a first ultrastructural region formed by an orthogonal array of microlenses and a second ultrastructural region formed by a ring array of microlenses to specifically generate stronger optical path difference signals in the main directions of human eye activity. At the same time, it forms a stable optical path difference signal ring in all directions, avoiding optical signal blind spots while providing composite optical signal stimulation to the human retina, thus achieving a better myopia control effect. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a front view of a lens with an optical path difference adjustment structure provided in an embodiment of this application.
[0025] Figure 2 This is a rear view of a lens with an optical path difference adjustment structure provided in an embodiment of this application.
[0026] Figure 3 A cross-sectional view AA of an optical path difference control structure lens provided in an embodiment of this application.
[0027] Figure 4 This is an enlarged view of part B of a lens with an optical path difference adjustment structure provided in an embodiment of this application.
[0028] In the figure: 1. Lens component; 2. Microlens; 3. First ultrastructural region; 4. Second ultrastructural region;
[0029] 31. First central area; 41. Second central area. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0031] This application provides a lens with an optical path difference adjustment structure, which solves the problems of insufficient contrast control and relatively simple optical signal adjustment in current myopia control lenses.
[0032] The technical solution in this application is to solve the aforementioned technical problems, and the overall approach is as follows:
[0033] Myopia control lenses utilize special optical designs to focus peripheral light at specific locations in front of or behind the retina, altering retinal growth signals and slowing axial elongation. Among related technologies, myopia control lenses are primarily developed based on DOT, DIMS, and DISC technologies. DOT lenses are developed based on the theory of retinal contrast signals; DISC is a soft corneal contact technology commonly used in contact lenses; and DIMS lenses are based on peripheral defocus theory. Both DIMS and DISC lenses rely on defocus control.
[0034] In related technologies, myopia control lenses often suffer from poor optical fidelity due to insufficient contrast control. The microlenses in these lenses are typically uniformly distributed in a single pattern, such as using an orthogonal array or a circular array. This results in optical signals exhibiting similar signal properties in all directions after passing through the lens, leading to a relatively singular optical signal. However, human eye cells are not uniformly distributed, and eye movements are controlled by six extraocular muscles, exhibiting significant directional differences. This is closely related to daily visual needs, which makes the performance of conventional myopia control lenses less than ideal. Therefore, there is an urgent need to develop a new type of structural lens to meet the growing demand for myopia control.
[0035] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0036] Example 1:
[0037] See Figures 1-4 As shown in the embodiment of this application, an optical path difference control structure lens is provided, including a lens element 1. The lens element 1 includes a microlens array, which includes a plurality of microlenses 2. Some of the microlenses 2 are arranged in an orthogonal array to form a first microstructure region 3 for optical path difference control; some of the microlenses 2 are arranged in a ring array to form a second microstructure region 4 for optical path difference control; wherein, the first microstructure region 3 and the second microstructure region 4 are respectively disposed on two opposing mirror surfaces of the lens element 1.
[0038] It should be noted that the first ultrastructural region 3 formed by the orthogonal array of microlenses 2 is densely arranged in the horizontal and vertical directions. During human eye movement, the main eye movement is horizontal scanning. The orthogonal array of microlenses specifically generates a stronger optical path difference signal in this direction. Meanwhile, the second ultrastructural region 4 formed by the ring array of microlenses 2 forms a stable optical path difference signal ring in all directions. This avoids optical signal blind spots and provides composite optical signal stimulation to the human retina, resulting in a better myopia control effect.
[0039] In a preferred embodiment, the inner side of the first microstructure region 3 is provided with a first central region 31 that does not contain the microlens 2; the inner side of the second microstructure region 4 is provided with a second central region 41 that does not contain the microlens 2.
[0040] It should be noted that the inner sides of the first microstructure region 3 and the second microstructure region 4 are provided with a first central region 31 and a second central region 41 without microlenses 2, thereby forming a central visual channel. This ensures that the optical correction signal of the lens 1 itself is not interfered with by the optical path difference signal, thus guaranteeing the wearer's daily visual needs.
[0041] In a further preferred embodiment, the optical correction centers of the first central region 31 and the second central region 41 are located on the same axis.
[0042] It should be noted that the optical correction centers of the first central region 31 and the second central region 41 are aligned and correspond to the center of the macula of the retina, ensuring the clarity of central vision and meeting the wearer's daily visual needs.
[0043] Example 2:
[0044] See Figures 1-4 As shown, the optical path difference control structure lens provided in this application includes the contents of Embodiment 1 and its preferred embodiments. In addition, the size range of the first microstructure region 3 is larger than the size range of the second microstructure region 4.
[0045] It should be noted that the size range of the first microstructure region 3 formed by the orthogonal array of microlenses 2 is larger than that of the second microstructure region 4 formed by the ring array of microlenses 2. This results in more optical path difference signals in the orthogonal direction, which makes the optical path difference signals more suitable for the use needs of human eye movement in different directions. That is, the horizontal direction is the most frequent, the vertical direction is the second most frequent, and the rotation is the least frequent, thus achieving a better myopia control effect.
[0046] In a preferred embodiment, the size range of the first central region 31 is smaller than the size range of the second central region 41.
[0047] It should be noted that when there is a first central region 31 and a second central region 41, the size range of the first central region 31 is smaller than that of the second central region 41. This means that the inner range of the first microstructure region 3 formed by the orthogonal array of microlenses 2 is larger than the inner range of the second microstructure region 4 formed by the ring array of microlenses 2. This results in more optical path difference signals in the orthogonal direction, which can meet the needs of human eye movement in different directions and achieve better myopia control.
[0048] In a further preferred embodiment, the first ultrastructure region 3 and the second ultrastructure region 4 can be configured independently.
[0049] It should be noted that the first microstructure region 3 and the second microstructure region 4 can be configured independently, and thus correspond to specific human eye cell distribution characteristics. By adjusting the distribution characteristics of microlenses 2 in the first microstructure region 3 and the second microstructure region 4, the lens can be adapted to patients with different degrees of myopia. The optical path difference adjustment of the entire lens 1 can accurately adapt to the myopia correction needs of some specific groups of people.
[0050] Example 3:
[0051] The optical path difference adjustment structure lens provided in this application includes the contents of Embodiments 1-2 and their preferred embodiments. In addition, the size range of the microlens 2 is 0.01mm-0.25mm.
[0052] It should be noted that the microlenses in conventional myopia control lenses are relatively large and are usually 0.8mm-2mm in size. This application significantly reduces the size of the microlens 2 so that more microlenses 2 can be accommodated per unit area, thereby achieving high-intensity optical path difference control and forming a continuous ultra-low disturbance defocus zone.
[0053] In a preferred embodiment, some of the microlenses 2 have different focal points.
[0054] It should be noted that microlenses with different focal points can construct more complex and three-dimensional optical signals to stimulate the retina, resulting in better myopia control.
[0055] Example 4:
[0056] This application provides an optical path difference control structure lens, including the contents of embodiments 1-3 and their preferred embodiments. In addition, the defocusing amount of the microlenses 2 in the first microstructure region 3 and the second microstructure region 4 is set in a gradient manner.
[0057] It should be noted that the defocus amount of the microlens 2 in the first microstructure region 3 and the second microstructure region 4 is set in a gradient manner, such as by gradually decreasing the defocus amount of the microlens 2 from the inside to the outside, in order to adapt to the needs of the human eye's range of motion (i.e., activities with small eye movements are more frequent, and activities with large eye movements are less frequent) and at the same time simulate the dynamic changes of natural light to form complex and gradient optical signals, thereby achieving a better myopia control effect.
[0058] In a preferred embodiment, the defocusing amount De of the microlens 2 satisfies: +4.50D ≤ De ≤
[0059] +10.00D, where D represents diopter and +10.00D is the extreme defocus value.
[0060] It should be noted that the setting of the defocus amount of the microlens 2 can change the propagation and scattering characteristics of light by the lens, thereby adjusting the contrast of light entering the eye to achieve specific visual effects and physiological effects.
[0061] In summary, compared with existing technologies, it has the following beneficial effects:
[0062] 1. This application uses a first ultrastructural region formed by an orthogonal array of microlenses and a second ultrastructural region formed by a ring array of microlenses to specifically generate stronger optical path difference signals in the main directions of human eye activity. At the same time, it forms a stable optical path difference signal ring in all directions, avoiding optical signal blind spots while providing composite optical signal stimulation to the human retina, thus achieving a better myopia control effect.
[0063] 2. This application sets up a first central region and a second central region without microlenses. The optical correction centers of the first central region and the second central region are aligned and correspond to the center of the macula of the retina, which ensures the clarity of central vision and meets the wearer's daily visual needs.
[0064] 3. This application generates more optical path difference signals in orthogonal directions by setting the size range, microlens configuration and defocus gradient of the first and second ultrastructural regions. This makes the optical path difference signals more adaptable to the usage needs of human eye movement in different directions, and at the same time forms complex and gradient optical signals, which achieves better myopia control effect.
[0065] 4. This application significantly reduces the size of the microlenses, thereby accommodating more microlenses per unit area, thus achieving high-intensity optical path difference control and forming a continuous ultra-low disturbance defocus zone; multiple microlenses can change the propagation and scattering characteristics of light by the lens, thereby adjusting the contrast of light entering the eye to achieve specific visual effects and physiological effects.
[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0067] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A lens with an optical path difference adjustment structure, characterized in that, Includes a lens element (1), said lens element (1) including a microlens array, said microlens array including: Multiple microlenses (2), some of which are orthogonally arranged to form a first microstructure region (3) for optical path difference control; The microlenses (2) are arranged in a ring array to form a second microstructure region (4) for optical path difference control; The first microstructure region (3) and the second microstructure region (4) are respectively disposed on the two opposing mirror surfaces of the lens element (1).
2. The optical path difference adjustment structure lens as described in claim 1, characterized in that, The inner side of the first microstructure region (3) is provided with a first central region (31) that does not contain the microlens (2); The inner side of the second microstructure region (4) is provided with a second central region (41) that does not contain the microlens (2).
3. The optical path difference adjustment structure lens as described in claim 2, characterized in that, The optical correction centers of the first central region (31) and the second central region (41) are located on the same axis.
4. The optical path difference adjustment structure lens as described in claim 1, characterized in that, The size range of the first microstructure region (3) is larger than the size range of the second microstructure region (4).
5. The optical path difference adjustment structure lens as described in claim 2, characterized in that, The size range of the first central region (31) is smaller than the size range of the second central region (41).
6. A lens with an optical path difference adjustment structure as described in any one of claims 1-5, characterized in that, The first microstructure region (3) and the second microstructure region (4) can be configured independently.
7. A lens with an optical path difference adjustment structure as described in any one of claims 1-5, characterized in that, The size range of the microlens (2) is 0.01mm-0.25mm.
8. A lens with an optical path difference adjustment structure as described in any one of claims 1-5, characterized in that, Some of the microlenses (2) have different focal points.
9. A lens with an optical path difference adjustment structure as described in any one of claims 1-5, characterized in that, The defocusing amount of the microlenses (2) in the first microstructure region (3) and the second microstructure region (4) is set in a gradient manner.
10. A lens with an optical path difference adjustment structure as described in any one of claims 1-5, characterized in that, The defocus amount De of the microlens (2) satisfies: +4.50D≤De≤+10.00D, where D represents diopter and +10.00D is the extreme defocus.