Stripe-shaped out-of-focus spectacle lens and spectacles
By designing striped defocus lenses and using an alternating high and low defocus band structure, the problem of weakened accommodation effect of single vision lenses is solved, achieving a more lasting refractive error correction effect.
Patent Information
- Application Number
- CN202520175994.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-27
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-27
AI Technical Summary
With the use of existing single-vision lenses, the accommodative effect weakens over time, causing the visual receptors to adapt and failing to effectively slow the development of refractive errors, especially in childhood.
Design a striped defocus lens, including a central optical zone and a defocus zone. The defocus zone consists of multiple alternating high and low defocus bands. By alternating high and low defocus bands, the anisotropy of the defocus zone is increased, reducing the adaptation of the visual receptor.
By increasing the anisotropy of the defocus area, the tolerance phenomenon of visual receptors is delayed, thus improving the durability of the lens's corrective effect.
Smart Images

Figure CN223926728U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spectacle lens technology, and in particular to a striped defocus spectacle lens and spectacle. Background Technology
[0002] Refractive errors are common eye problems, including myopia, hyperopia, and astigmatism. Myopia occurs when, in a resting state, parallel light rays, after refraction by the eye, focus in front of the retina, causing blurred vision for distant objects. Hyperopia, conversely, focuses behind the retina, causing blurred vision for near objects. Astigmatism occurs due to irregular curvature of the cornea or lens, preventing light from focusing accurately on the retina and resulting in multiple focal points. To achieve clear vision, people often use concave or convex lenses to refocus the image onto the retina.
[0003] Taking myopia correction glasses as an example, conventional myopia correction lenses (concave lenses) are mostly single-vision lenses. When worn, the central light focuses on the retina, while the peripheral light focuses behind the retina, resulting in hyperopia defocus. Hyperopia correction lenses (convex lenses) do the opposite, resulting in myopia defocus. Studies have shown that due to hyperopia or myopia defocus, the focusing pattern of these single-vision lenses causes the eye to grow towards the back or front of the retina, leading to an increase or decrease in the axial length of the eye. This causes the refractive state of the eyeball to develop in the opposite direction, further increasing the degree of myopia or hyperopia, especially in children during their developmental period, where this phenomenon is more likely to occur.
[0004] Based on the above issues, functional lenses that suppress refractive errors in the human eye have been developed from traditional single-vision lenses. For example, the peripheral defocused microlens provided in existing technology can effectively slow down the progression of myopia; clinical studies have found that its effectiveness in controlling myopia is around 40%-60%.
[0005] However, in actual fitting practice, it has been found that the best effect of defocused lens design occurs in the first six months or the first year, after which the effect weakens. In other words, the accommodative effect of defocused lenses decreases with the extension of wearing time (tolerance phenomenon). How to reduce the memory tolerance of visual receptors is one of the technical problems that urgently need to be solved. Utility Model Content
[0006] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a striped defocus lens and eyeglasses. The striped defocus lens provided by this invention includes a central optical zone and a defocus zone. The defocus zone includes multiple defocus bands radiating outward from the optical center of the lens substrate. These defocus bands are spaced apart, forming a striped defocus zone with alternating high and low defocus bands. This alternation of high and low defocus bands increases the anisotropy of the defocus zone, causing it to exhibit different properties in different directions, reducing visual receptor adaptation and thus delaying tolerance.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A striped defocus eyeglass lens includes a lens substrate, wherein a central optical zone and a defocus zone are provided on the lens substrate;
[0009] The central optical zone is located in the central region of the lens substrate;
[0010] The defocus area is located on the outer periphery of the central optical area and includes multiple defocus zones radiating outward from the optical center of the lens substrate. The extension line of the axis of the defocus zone passes through the optical center.
[0011] The defocus zones are spaced apart and form striped defocus areas with alternating high and low defocus zones.
[0012] Furthermore, the center of the central optical region coincides with the optical center of the lens substrate, and the central optical region extends outward from the optical center;
[0013] The radius of the central optical zone is 3-8mm, which constitutes the central visible area of the lens.
[0014] Furthermore, the defocused area is located within a radius of 3-35 mm from the optical center;
[0015] The defocus zone extends from the outer periphery of the central optical zone toward the edge of the lens substrate, and there is a blank zone between the defocus zones. The blank zone is the optical zone based on the lens substrate.
[0016] Furthermore, the defocus zone is a full-frame defocus zone, which extends from the minimum radius of the defocus area to the maximum radius of the defocus area.
[0017] Furthermore, when the optical center of the lens substrate extends outward, the width s of the full-frame defocus zone increases outward from the minimum radius according to the first width adjustment rule, so that the distance d between the edges of two adjacent full-frame defocus zones meets the preset distance threshold d0.
[0018] The distance threshold d0 is a constant value, or for any position on the full-frame defocus zone, the distance threshold d0 is configured according to the distance L between that position and the optical center.
[0019] Furthermore, the defocus zone includes a full-frame defocus zone and a partial-frame defocus zone;
[0020] The full-frame defocus zone extends from the minimum radius of the defocus area to the maximum radius of the defocus area;
[0021] The partial defocus zone extends from the middle of the defocus area to the maximum diameter of the defocus area;
[0022] One or more partial-frame defocus zones are provided between the two full-frame defocus zones.
[0023] Furthermore, as the optical center of the lens matrix extends outward, the distance d between the edges of two adjacent full-frame defocus zones increases.
[0024] As the distance d increases, when the distance d is greater than a preset distance threshold dm, the partial defocus band is inserted starting from the position greater than the distance threshold, thereby forming a encrypted partial defocus band between the two full-frame defocus bands, so that the distance between the multiple defocus bands in the defocus area is within the preset distance threshold dm.
[0025] Furthermore, the degree of defocus at any position on the defocus zone is related to the distance L between that position and the optical center; the larger L is, the greater the degree of defocus at the corresponding position.
[0026] Furthermore, the defocus zone includes a microlens array, wherein the surface shape of the microlens is selected from at least one of spherical, aspherical, torus, cylindrical, and freeform surfaces;
[0027] The microlens has a diameter of 0.1-3 mm, and each microlens is in contact with the lens substrate region and protrudes from the base surface of the lens substrate.
[0028] The present invention also provides eyeglasses, including a frame, characterized in that: it includes the striped defocus lens as described in any of the preceding claims.
[0029] Compared with the prior art, this utility model, by adopting the above technical solution, has the following advantages and positive effects: The striped defocus lens provided by this utility model includes a central optical zone and a defocus zone. The defocus zone includes multiple defocus bands radiating outward from the optical center of the lens substrate. The defocus bands are spaced apart and form a striped defocus zone with alternating high and low defocus bands. In this way, the anisotropy of the defocus zone is increased by alternating high and low defocus bands. The defocus zone exhibits different properties in different directions, reducing visual receptor adaptation and thus delaying tolerance. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the structure of the striped defocus eyeglass lens provided in an embodiment of the present invention.
[0031] Figure 2 Schematic diagram of the alternating structure of high defocus band and low defocus band provided in the embodiments of this utility model Figure 1 .
[0032] Figure 3 Schematic diagram of the alternating structure of high defocus band and low defocus band provided in the embodiments of this utility model Figure 2 .
[0033] Figure 4 Schematic diagram of the alternating structure of high defocus band and low defocus band provided in the embodiments of this utility model Figure 3 .
[0034] Figure 5 Schematic diagram of the alternating structure of high defocus band and low defocus band provided in the embodiments of this utility model Figure 4 .
[0035] Figure 6 Schematic diagram of the alternating structure of high defocus band and low defocus band provided in the embodiments of this utility model Figure 5 .
[0036] Figure 7 A schematic diagram of the structure of the glasses provided in an embodiment of this utility model.
[0037] Explanation of reference numerals in the attached figures:
[0038] 1 pair of glasses, 10 lenses, 20 frames;
[0039] Lens matrix 100, central optical zone 110, defocus zone 120, high defocus zone 121, low defocus zone 122, blank zone 123, edge zone 130. Detailed Implementation
[0040] The striped defocus eyeglass lens and eyeglasses disclosed in this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be considered isolated; they can be combined with each other to achieve better technical effects. In the accompanying drawings of the following embodiments, the same reference numerals appearing in each drawing represent the same features or components, which can be applied to different embodiments. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0041] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the utility model. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the utility model, should fall within the scope of the technical content disclosed in the utility model. The scope of the preferred embodiments of this utility model includes other implementations, wherein functions may be performed not in the order stated or discussed, including substantially simultaneously or in reverse order, according to the functions involved. This should be understood by those skilled in the art to which the embodiments of this utility model pertain.
[0042] Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.
[0043] In the description of the embodiments of this application, " / " means "or", and "and / or" is used to describe the relationship between related objects, indicating that there can be three relationships. For example, "A and / or B" means: A and B exist alone, B exists alone, and A and B exist simultaneously. In the description of the embodiments of this application, "multiple" refers to two or more. Example
[0044] See Figure 1 As shown, this utility model provides a striped defocus eyeglass lens 10.
[0045] The spectacle lens 10 includes a lens substrate 100, which is preferably circular and may have a diameter of 50-70 mm. The substrate of the lens substrate is formed, for example, from thermosetting resin materials such as thiocarbamate, allyl, acrylic, or cyclic sulfur resins. Furthermore, other resin materials with the desired refractive index can also be selected as the resin material constituting the lens substrate. Alternatively, the lens substrate may be made of inorganic glass instead of a resin material; this is not a limitation.
[0046] The lens substrate 100 is provided with a central optical zone 110 and a defocus zone 120.
[0047] The central optical region 110 is located in the central region of the lens substrate 100. Specifically, the center of the central optical region 110 coincides with the optical center of the lens substrate 100, and the central optical region 110 extends outward from the optical center.
[0048] The radius of the central optical area 110 can be 3-8 mm, preferably 3.5-5 mm, constituting the central visible area of the lens. Depending on the needs, the central optical area 110 can be circular, elliptical, polygonal, quasi-elliptical, or irregular in shape. Preferably, in this embodiment of the invention, the shape of the central optical area 110 is circular, hexagonal, or octagonal.
[0049] The defocus region 120 is located on the outer periphery of the central optical region 110 and is a microstructured area used to suppress the development of refractive errors in the eye. Specifically, the defocus region 120 can be located within a radius of 3-35 mm from the optical center.
[0050] The defocus area 120 includes a plurality of defocus zones radiating outward from the optical center of the lens substrate, the extension lines of the axes of the defocus zones passing through the optical center.
[0051] In this embodiment, the lens substrate 100 itself can be a refractive corrective lens. In this case, the central optical zone 110 is a prescription area for correcting refractive errors in the eye. Light rays entering through the central optical zone and base zone of the lens substrate exit the lens substrate and converge onto the retina via the eye. The microstructure of the defocus zone can specifically employ microlenses, and each defocus zone can be provided with a microlens array consisting of multiple microlenses. The refractive power of the microlenses in the microlens array differs from the refractive power of the lens substrate 100.
[0052] The defocus bands extend from the outer periphery of the central optical zone 110 towards the edge of the lens matrix. Multiple defocus bands in the defocus zone 120 are spaced apart, forming alternating striped defocus zones of high defocus bands 121 and low defocus bands 122. The refractive power of the high defocus band 121 is greater than that of the low defocus band 122. See also... Figure 2 As shown, an example illustrates the arrangement of high defocus zones 121 and low defocus zones 122 in the defocus area according to an alternating pattern of high, low, high, low... In this case, two adjacent high defocus zones 121 are separated by a low defocus zone 122, and two adjacent low defocus zones 122 are separated by a high defocus zone 121. It should be noted that the high defocus zone 121 is relative to the low defocus zone 122, and the low defocus zone 122 is relative to the high defocus zone 121.
[0053] When light rays travel from one object to another substance with a different optical density, the direction of light propagation is deflected. This phenomenon is called refraction, and refractive power is used to express the magnitude of this refraction (refractive capacity). Diopter (or focal power) is the unit of refractive power, denoted by D. When parallel light rays pass through a refractive material, the refractive power of that material at a focal point of 1m is defined as 1 diopter or 1D.
[0054] In specific configurations, the difference between the refractive power of the microlens and the refractive power of the lens substrate is between 0 and 5D. Preferably, the refractive power of the microlens in the high defocus zone 121 is within the range of +2.00D to +4.50D of the refractive power of the lens substrate, and the refractive power of the microlens in the low defocus zone 122 is within the range of +0.50D to +2.50D of the refractive power of the lens substrate. The difference between the refractive power of the high defocus zone 121 and the low defocus zone 122 is preferably between 0.50D and 2.00D.
[0055] The surface shape of the microlens can be selected from at least one of spherical, aspherical, torus, cylindrical, and freeform surfaces.
[0056] The microlens has a diameter of 0.1-3 mm, and each microlens is in contact with the lens substrate region and protrudes from the base surface of the lens substrate.
[0057] Preferably, the diameter of the microlens is about 0.5-2.0 mm, and the protrusion height (protrusion amount) of the microlens is about 0.1-10 μm, preferably about 0.4-2.0 μm.
[0058] It should be understood by those skilled in the art that the microstructured spectacle lens provided in this embodiment can be ground by CNC lathe, or cast or injection molded, and there are no limitations on this.
[0059] See Figure 3 As shown, an example illustrates a method of setting blank bands 123 (white space) in the defocus area 120. In this case, the blank bands 123 are located between the defocus bands and are optical areas based on the lens substrate. The high defocus bands 121 and low defocus bands 122 in the defocus area can be arranged according to an alternating rule of high defocus band, blank band, low defocus band, blank band, high defocus band… Two adjacent high defocus bands 121 are separated by one low defocus band 122 and two blank bands 123, and two adjacent low defocus bands 122 are separated by one high defocus band 121 and two blank bands 123. Each defocus band forms an independent defocus area on the lens substrate, and each blank band 123 forms an independent visible area on the lens substrate.
[0060] Taking myopia correction lenses as an example, the central optical zone 110 serves as the central myopia correction zone, and the defocus zone is the positive microlens defocus zone. When light passes through the positive microlens defocus zone, it can form a series of optical defocus signals in front of the retina, slowing down the elongation of the eye axis and the progression of myopia. The defocus zone increases its anisotropy by setting high defocus bands 121 and low defocus bands 122, so that the defocus zone exhibits different properties in different directions, reducing the adaptation of visual receptors. The blank band 123 of the defocus zone is also a myopia correction zone. As the visible area of the defocus zone, it allows the wearer's eyes to see objects even when passing through the defocus zone.
[0061] It should be noted that the lens substrate 10 itself can also be a plano lens. In this case, the central optical zone 110 is a non-refractive optical zone, while the defocus zone 120 is a microstructured area used to suppress the development of refractive errors in the eye. Depending on the needs, such a lens can be combined with conventional myopia / hyperopia corrective lenses or other functional lenses. For example, the aforementioned lens with defocus function can be mounted on the main frame or additional frame of a double-layer eyeglass frame, or on a modular eyeglass frame where the wearer can freely switch between lenses, nose pads, and temples.
[0062] Understandably, as an optional implementation, the defocus area 120 can be arranged from the edge of the central optical area to the edge of the lens; or it can be not arranged to the edge of the lens. In this case, an edge area 130 is left between the defocus area 120 and the edge of the lens (i.e., an edge area 130 is provided around the defocus area 120). The edge area 130 is an optical area (blank part) based on the lens substrate, forming a second peripheral visible area, which can play a role in assisting in vision correction.
[0063] In this embodiment, the alternation rule between the high defocus zone and the low defocus zone can also be an alternation between one high defocus zone 121 and multiple low defocus zones 122, or an alternation between multiple high defocus zones 121 and one low defocus zone 122, or an alternation between multiple high defocus zones 121 and multiple low defocus zones 122. For an example of a typical method, see [link to example]. Figure 4 As shown, an example illustrates an alternating arrangement of a high defocus zone 121 and two low defocus zones 122. In this arrangement, the defocus area follows an alternating pattern of high defocus zone, blank zone, first low defocus zone, blank zone, second low defocus zone, blank zone, high defocus zone… Two adjacent high defocus zones 121 are separated by two low defocus zones 122 and three blank zones 123. Each defocus zone forms an independent defocus area on the lens substrate, and each blank zone 123 forms an independent viewing area on the lens substrate, which can assist in visual acuity.
[0064] In this embodiment, the defocus zone extends from the outer periphery of the central optical zone 110 towards the edge of the lens substrate. In a specific implementation, the defocus zone may extend from the edge of the central optical zone 110 towards the edge of the lens substrate; such a defocus zone is called a full-frame defocus zone, meaning it extends from the minimum radius of the defocus zone to the maximum radius of the defocus zone. See [link to relevant documentation]. Figures 2 to 4 The defocus zone shown can also be a partial defocus zone, extending from the center of the lens on the outer periphery of the central optical zone 110 towards the edge of the lens matrix. This partial defocus zone extends from the center of the defocus area to its maximum diameter. See [reference needed]. Figure 5 The defocus zone is shown.
[0065] Preferably, when the optical center of the lens substrate extends outward, the width s of the full-frame defocus zone increases outward from the minimum radius according to the first width adjustment rule, so that the distance d between the edges of two adjacent full-frame defocus zones meets the preset distance threshold d0.
[0066] In one implementation, the distance threshold d0 is a constant value.
[0067] In another embodiment, for any position on the full-frame defocus zone, the distance threshold d0 is configured based on the distance L between that position and the optical center. Preferably, the distance threshold d0 increases as the defocus zone extends towards the edge of the lens matrix, i.e., as L increases.
[0068] When the defocus zone includes a full-frame defocus zone and a partial-frame defocus zone, preferably, one or more partial-frame defocus zones can be provided between the two full-frame defocus zones. For example, Figure 5 The example illustrates setting a partial-frame defocus band between two full-frame defocus bands. Figure 6 The example illustrates three partial-frame defocus zones positioned between two full-frame defocus zones, the starting positions of which may differ.
[0069] Preferably, as the optical center of the lens substrate extends outward, the distance d between the edges of two adjacent full-frame defocus zones increases. As the distance d increases, when the distance d is greater than a preset distance threshold dm, the partial-frame defocus zone is inserted starting from a position greater than the distance threshold, thereby forming a denser partial-frame defocus zone between the two full-frame defocus zones, so that the distance between multiple defocus zones in the defocus area is within the preset distance threshold dm.
[0070] In this embodiment, preferably, the defocus power at any position on the defocus zone is related to the distance L between that position and the optical center; the larger L is, the greater the defocus power at the corresponding position. For example, a full-frame high defocus zone can have 11 concentric microlens rings from the inside out, including ring 1, ring 2, ring 3, ring 4, ring 5, ring 6, ring 7, ring 8, ring 9, ring 10, and ring 11 microlenses, with each microlens ring containing 3 microlenses. The center line of the defocus zone coincides with the straight line radiating from the center of the concentric rings. From ring 1 to ring 11, the defocus power (refractive power) of the microlenses gradually increases, and simultaneously, the lens size of the microlenses also gradually increases—for example, from a diameter of 1mm to 3mm. This allows the smaller microlenses near the center to provide more precise defocus stimulation, and the denser lenses to provide stronger control.
[0071] Furthermore, as needed, the defocus zone of the lens can be designed with asymmetrical refractive power on the nasal and temporal sides. The refractive power of the microlens zone of the nasal defocus zone is greater than that of the microlens zone of the temporal defocus zone (the hyperopic defocus of the nasal and temporal retina in myopic eyes is asymmetrical, with the temporal side having a greater amount of hyperopic defocus than the nasal side), so as to ensure that the human eye can obtain similar defocus effects when looking at near and far objects.
[0072] See Figure 7 As shown, in another embodiment of the present invention, a pair of glasses 1 is provided, the glasses including a lens 10 and a frame 20, wherein the lens 10 is a striped defocus lens.
[0073] Specifically, the spectacle lens 10 includes a lens substrate, on which a central optical zone and a defocus zone are provided.
[0074] The central optical zone is located in the central region of the lens substrate.
[0075] The defocus area is located on the outer periphery of the central optical area and includes multiple defocus zones radiating outward from the optical center of the lens substrate. The extension line of the axis of the defocus zone passes through the optical center, and a microlens array is disposed within the defocus zone. The defocus zones are spaced apart to form a striped defocus area with alternating high and low defocus zones.
[0076] The frame 20 may specifically include a frame assembly, temple assembly, and nose pad assembly. The geometric parameters of the frame may include frame size information, temple size information, and nose pad size information. The spectacle lens 10 is mounted in the frame. The geometric parameters of the lens may include lens size, lens radius of curvature, light transmittance, lens thickness, and the size design of the central optical zone and defocus zone.
[0077] Other technical features are described in the preceding embodiments and will not be repeated here.
[0078] In the above description, the disclosure of this utility model is not intended to limit itself to these aspects. Rather, within the scope of the target protection of this disclosure, the components can be selectively and operationally combined in any number. Furthermore, terms such as "comprising,"
[0079] The terms “encompassing” and “having” should be interpreted by default as inclusive or open-ended, rather than exclusive or closed, unless explicitly defined as such. All technical, scientific, or other terms shall be interpreted as understood by one of those skilled in the art, unless explicitly defined as such. Public terms found in dictionaries should not be interpreted in the context of the relevant technical documentation in an overly idealistic or impractical manner, unless explicitly defined as such in this disclosure. Any modifications or alterations made by one of ordinary skill in the art based on the foregoing disclosure are within the scope of the claims.
Claims
1. A striped defocus eyeglass lens, comprising a lens substrate, wherein a central optical zone and a defocus zone are provided on the lens substrate; The central optical zone is located in the central region of the lens matrix, constituting the central visible area of the lens; The defocus area is located on the outer periphery of the central optical area and includes multiple defocus zones radiating outward from the optical center of the lens substrate. The extension line of the axis of the defocus zone passes through the optical center. The characteristic feature is that: The defocus zones are spaced apart to form striped defocus areas with alternating high and low defocus zones to increase the anisotropy of the defocus areas. The refractive power of the high defocus zone is greater than that of the low defocus zone.
2. The streaked defocus ophthalmic lens of claim 1, wherein: The center of the central optical zone coincides with the optical center of the lens substrate, and the central optical zone is formed by extending outward from the optical center. The radius of the central optical zone is 3-8 mm.
3. The streaked defocus ophthalmic lens of claim 2, wherein: The defocused area is located within a radius of 3-35mm from the optical center; The defocus zone extends from the outer periphery of the central optical zone toward the edge of the lens substrate, and there is a blank zone between the defocus zones. The blank zone is the optical zone based on the lens substrate.
4. The streaked defocus ophthalmic lens of claim 3, wherein: The defocus zone is a full-frame defocus zone, which extends from the minimum radius of the defocus area to the maximum radius of the defocus area.
5. The streaked defocus ophthalmic lens of claim 4, wherein: When the optical center of the lens substrate extends outward, the width s of the full-frame defocus zone increases outward from the minimum radius according to the first width adjustment rule, so that the distance d between the edges of two adjacent full-frame defocus zones meets the preset distance threshold d0. The distance threshold d0 is a constant value, or for any position on the full-frame defocus zone, the distance threshold d0 is configured according to the distance L between that position and the optical center.
6. The striped defocus spectacle lens according to claim 3, characterized in that: The defocus zone includes a full-frame defocus zone and a partial-frame defocus zone; The full-frame defocus zone extends from the minimum radius of the defocus area to the maximum radius of the defocus area; The partial defocus zone extends from the middle of the defocus area to the maximum diameter of the defocus area; One or more partial-frame defocus zones are provided between the two full-frame defocus zones.
7. The striped defocus spectacle lens according to claim 6, characterized in that: As the optical center of the lens matrix extends outward, the distance d between the edges of two adjacent full-frame defocus zones increases. As the distance d increases, when the distance d is greater than a preset distance threshold dm, the partial defocus band is inserted starting from the position greater than the distance threshold, thereby forming a encrypted partial defocus band between the two full-frame defocus bands, so that the distance between the multiple defocus bands in the defocus area is within the preset distance threshold dm.
8. The striped defocus spectacle lens according to any one of claims 1-7, characterized in that: The degree of defocus at any position on the defocus zone is related to the distance L between that position and the optical center. The larger L is, the greater the degree of defocus at the corresponding position.
9. The striped defocus spectacle lens according to claim 1, characterized in that: The defocus zone includes a microlens array, and the surface shape of the microlens is selected from at least one of spherical, aspherical, torus, cylindrical, and freeform surfaces; The microlens has a diameter of 0.1-3 mm, and each microlens is in contact with the lens substrate area and protrudes from the base surface of the lens substrate.
10. A pair of eyeglasses, comprising a frame, characterized in that: Includes the striped defocus spectacle lens according to any one of claims 1-9.