Ophthalmic lens

Abstract

The present disclosure relates to an ophthalmic lens comprising an optical zone and a control zone. And the optical area can provide a correction effect on the vision of the ametropia patient. The control area surrounds the central optical area of the spectacle lens and comprises control subunits which are sequentially arranged in the circumferential direction, each control subunit is provided with a plurality of first lens arrays and second lens arrays which are parallel to one another, each first lens array comprises a plurality of first lenses which are attached to one another, and each second lens array comprises second lenses which are attached to one another. The change rate of the modulation-demodulation function of each control subunit at adjacent positions in the circumferential direction under each frequency is extremely small, and the size of the point sequence diagram is not changed, and the directions are different. The spectacle lens can achieve a long-term effective ametropia prevention and control effect.

Description

Technical Field

[0001] The present application relates to the field of ophthalmic devices, and in particular to a spectacle lens intended to be worn in front of a person's eye to inhibit the development of eye abnormalities such as myopia or hyperopia. Background Art

[0002] Traditional lenses mainly seek to correct vision for eyes that already have refractive errors. This type of lens is used as a form of relief to solve the defects of the eyes. After people wear this type of lenses (such as single-vision lenses), their vision will inevitably deteriorate further (such as myopia further deepens). People hope to actively control refractive errors (such as myopia, hyperopia, etc.) to prevent further deterioration of vision. Therefore, spectacle lenses are developing new functional lenses with myopia control effects based on traditional single-vision lenses.

[0003] In the existing defocus lenses, the areas on the lenses used to achieve defocus can be divided into annular defocus design (commonly known as "concentric circle" design), progressive multifocal design and scattered microlens layout design. In the concentric circle design, the surface of the lens is usually provided with 2-8 rings of continuous defocus areas with different refractive powers. In the progressive multifocal design, the refractive power of the lens changes gradually along the radial direction. In the scattered microlens layout design, the surface of the lens is regularly provided with microlenses with additional refractive power or special focus directions.

[0004] There is evidence that these concentric circle designs, progressive multifocal designs, and scattered microlens layout designs of spectacle lenses can indeed achieve a certain delaying and controlling effect on myopia. As these lenses are commercialized and used by a larger number of people, researchers and doctors generally find that in the early stages of use (mostly 1 year) for patients with vision problems, the spectacle lenses can significantly slow the progression of vision problems. As the number of years of wearing the lenses increases, patients with vision problems will gradually adapt to and compensate for the single form of defocus stimulation provided by the lenses, resulting in the weakening of the myopia prevention and control effect of the lenses year by year.

[0005] Therefore, there is an urgent need for a spectacle lens that can provide a continuous and effective myopia suppression effect for patients with refractive errors.

[0006] Public Content

[0007] In view of the above-mentioned status of the eyeglasses according to the prior art, one of the objectives of the present disclosure is to provide an eyeglasses that can continuously suppress the development of refractive error of the eye.

[0008] The object is achieved by disclosing the following spectacle lenses. The spectacle lenses include:

[0009] an optical zone forming a base surface of the ophthalmic lens and having a prescription power based on an eye prescription of a patient, the optical zone including a central optical zone located in a central area of ​​the ophthalmic lens; and

[0010] A control zone, the control zone surrounds the central optical zone of the spectacle lens, the control zone includes control subunits arranged in sequence in the circumferential direction of the spectacle lens, each control subunit has a plurality of first lens arrays and a second lens array parallel to each other, the first lens array includes a plurality of first lenses bonded to each other, the second lens array includes second lenses bonded to each other, the first lenses and the second lenses have different refractive powers, the first lenses have additional refractive powers compared to the prescribed refractive power, each first lens has a regular polygonal surface, and

[0011] The control subunits at circumferentially adjacent positions at the same radial position of the eyeglass have a modulation and demodulation function difference within a 3 mm entrance pupil diameter that is less than 0.05, and the point array diagrams are equal in size but different in direction.

[0012] Preferably, the first lens array comprises a plurality of first lenses arranged on a straight line segment, and the straight line segment is not in the radial direction of the eyeglass lens.

[0013] Preferably, the control subunit is in the shape of a triangle, and the straight line segment and adjacent sides of the triangle form an angle.

[0014] Preferably, more than 80% of the focal points of the first lenses are not on the wearer's retina, and the corresponding imaging wavefronts are not confocal.

[0015] Preferably, within an entrance pupil diameter of 3 mm, the modulation transfer function of the control subunit at 20 lp / mm is in the range of 0.45-0.55, and the modulation transfer function at 30 lp / mm is in the range of 0.36-0.50.

[0016] Preferably, the first lens array and the second lens array are arranged alternately.

[0017] Preferably, the first lenses are in surface contact with each other through the surfaces where the edges of the regular polygons are located.

[0018] Preferably, the control subunit is triangular in shape.

[0019] Preferably, the control zone defines a boundary zone composed of circumferentially continuously and closely laid first lenses in an area bordering the optical zone, the length of an inner edge of the boundary zone is greater than 75 times the side length of the first lens, and the radius of an inscribed circle of the inner edge is not greater than 7.5 mm.

[0020] Preferably, the number of side lengths of the regular polygon is selected from any one of 3, 4, 6, and 8.

[0021] Preferably, the straight line segment and the side of the triangle form an angle of 60 degrees.

[0022] Preferably, the eyeglass lens has six control subunits arranged on its circumference.

[0023] In addition, the present disclosure actually also relates to a pair of frame glasses, which comprises any one of the spectacle lenses described above.

[0024] Based on the common sense in the art, the above-mentioned preferred implementation modes can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0025] In the spectacle lenses and frame glasses with the spectacle lenses designed in the present disclosure, a control subunit is provided on the defocus area of ​​the spectacle lenses, which is asymmetrical in the circumferential direction and is used to control the development of ametropia such as myopia. On the one hand, since the spectacle lenses can provide a substantially unchanged modulation and demodulation function in the circumferential direction, it is ensured that the wearer will not have obvious visual differences due to his / her sight passing through different control subunits during the rotation of his / her eyes; on the other hand, the spectacle lenses provide a changing spot diagram in the circumferential direction, which provides a changing defocus stimulus in the circumferential direction, so as to realize continuous and effective control of the development of ametropia. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to better understand the above and other purposes, features, advantages and functions of the present disclosure, reference may be made to the preferred embodiments shown in the accompanying drawings. The same reference numerals in the accompanying drawings refer to the same components. It should be understood by those skilled in the art that the accompanying drawings are intended to schematically illustrate the preferred embodiments of the present disclosure and have no limiting effect on the scope of the present disclosure, and the components in the drawings are not drawn to scale.

[0027] Figure 1 is a schematic structural diagram of the front side of a spectacle lens according to a preferred embodiment of the present disclosure;

[0028] Figure 2-4 It is the simulation point diagram of the 3mm aperture area of ​​the control subunit at different circumferential positions;

[0029] Figure 5-7 is the modulation and demodulation function of the 3 mm aperture area of ​​the control subunit at different circumferential positions;

[0030] Figure 8 is a schematic diagram of a corresponding point diagram after simulation of a 3 mm aperture area of ​​each control subunit of the eyeglass according to a preferred embodiment of the present disclosure and a corresponding object image passing through the area;

[0031] Fig. 9It is a schematic structural diagram of the front side of a spectacle lens according to another preferred embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] Next, the disclosed concept of the present disclosure will be described in detail with reference to the accompanying drawings. Described here are only preferred embodiments according to the present disclosure, and those skilled in the art may think of other ways to implement the present disclosure on the basis of the preferred embodiments, and the other ways also fall within the scope of the present disclosure. In the following specific description, directional terms such as "upper", "lower", "inner", "outer", "longitudinal", "horizontal", etc. are used with reference to the directions described in the accompanying drawings. The components of the embodiments of the present disclosure can be placed in a variety of different directions, and the directional terms are used for illustrative purposes and are not restrictive.

[0033] In the present disclosure, the spectacle lens 1 is a spectacle lens 1 suitable for being worn in front of a person's eyes. The spectacle lens 1 is not attached to the surface of the eyeball, but is mounted in front of the eye through a metal frame or a plastic material frame.

[0034] Figure 1 A front view of the ophthalmic lens 1 is shown, which corresponds to a viewing angle directly in front of the centre of the ophthalmic lens 1 .

[0035] See also Figure 1 In this embodiment, the spectacle lens 1 has a substantially circular surface shape. Alternatively, the spectacle lens 1 may also have a rectangular, square or other special-shaped surface shape.

[0036] Unless otherwise specified, the "surface shape" in the present disclosure refers to the shape defined by the outer edge of the object as a whole or a local area of ​​the object when observed along the normal direction of the center of the object or a local area of ​​the object.

[0037] See also Figure 1 , which shows a spectacle lens 1, which includes an optical zone 10 and a control zone 20, etc. Among them, in order to facilitate the distinction, Figure 1 The regions with different refractive powers are shown in different colors. It should be understood that Figure 1 The entire ophthalmic lens 1 is transparent. The optical zone 10 can provide a correction for the vision of patients with refractive errors. The optical zone 10 of the ophthalmic lens 1 is optionally made of a material having a refractive index of 1.5 to 1.76 and suitable for use as an ophthalmic lens 1.

[0038] The optical zone 10 forms the base surface S of the eyeglass 11 and has a prescription refractive power D0 based on the eyeball. The optical zone 10 includes a central optical zone 11 located in the central area of ​​the eyeglass 1 and a peripheral optical zone 12 located in the peripheral area of ​​the eyeglass 1. For the optical zone 10 used for correcting vision, its surface is smooth and continuous. The base surface S can be a rotationally symmetrical spherical form or an aspherical form, or a non-rotationally symmetrical cylinder or sphero-cylindrical surface. The non-rotationally symmetrical cylinder or sphero-cylindrical surface can have different curvatures in four quadrants. The optical zone 10 can also have a divergent curvature design to be suitable for patients with astigmatism problems.

[0039] The central optical zone 11 in the optical zone 10 basically has a non-circular surface shape, and the radius R of the inscribed circle of the central optical zone 11 is set to any value within the range of 3 mm to 8 mm, for example, 4 mm, 5 mm, 6 mm, etc.

[0040] The control zone 20 is used to form a specific defocus area, which includes control subunits U arranged sequentially in the circumferential direction of the eyeglass 1. Each control subunit U has several first lens arrays 21 and second lens arrays 22 parallel to each other. The first lens array 21 includes several first lenses 21A bonded to each other, and the second lens array 22 includes second lenses 22A bonded to each other. The first lens 21A and the second lens 22A have different refractive powers. The first lens 21A has an additional refractive power compared to the prescribed refractive power. Each first lens 21A has a regular polygonal surface. The modulation and demodulation functions of each control subunit U at the circumferentially adjacent positions at the same radial position of the eyeglass 1 within the 3mm entrance pupil diameter (for example, the modulation and demodulation functions at a frequency of 20lp / mm and / or 30lp / mm), and the point array diagrams are equal in size and different in direction.

[0041] The additional refractive power of the first lens 21A is, for example, in the range of [+2.0D, +8.0D], [-8.0D, -2.0D]. Preferably, the additional refractive power is set in the range of [+2.0D, +6.0D] or [-6.0D, -2.0D]. For myopic patients, the additional refractive power of the first lens 21A can be set to have a positive additional refractive power, such as +3D, +4D, etc. For hyperopic patients, the additional refractive power of the first lens 21A can be set to have a negative additional refractive power, such as -3D, -4D, etc.

[0042] Each vertex of the regular polygon of the first lens 21A on the eyeglass 1 is set on the base surface S. It should be noted that the base surface S at the position where the first lens 21A is set is a virtual surface (the virtual surface is occupied by the surface of the first lens 21A), and the virtual surface corresponds to the surface with a specific prescription refractive power set at the position of the eyeglass 1 according to the prescription requirements. When each vertex is set on the base surface S, the first lens 21A with additional positive refractive power is formed in the form of protruding from the surface of the eyeglass 1 in the middle. It can be understood that when the eyeglass 1 is processed, the pattern of the base surface S of the lens will be automatically produced in the processing equipment program. When the processing reaches the position where the first lens 21A is set, the base surface S at this position can be used as a reference point to set the vertex position of the first lens 21A, and the pattern of the first lens 21A can be further processed on this basis. In this process, it is not necessary to first process the base surface S at the position where the first lens 21A is set, and then process the first lens 21A. The setting method of setting the vertex of the first lens 21A of the eyeglass lens 1 at the base surface S can ensure the position accuracy of the first lens 21A and the curvature and refractive power accuracy of the first lens 21A. Similarly, when the first lens 21A has an additional negative refractive power, the first lens 21A is formed in a form where the middle is recessed from the surface of the eyeglass lens 1. The processing mechanism at this time is the same as the processing mechanism of the first lens 21A with an additional positive refractive power, and will not be repeated here.

[0043] It can be understood that in the above processing method, each edge of the first lens 21A protrudes or is recessed from the base surface S by a certain distance. The size of this distance is determined by the material of the first lens 21A and the additional refractive power. After the vertices of the first lens 21A are set on the base surface S, the first lens 21A will smoothly protrude or recess from the base surface S of the eyeglass lens 1 to avoid forming a non-smooth surface on the eyeglass lens. For the first lens 21A protruding from the base surface S, the lens will not have a large thickness due to the existence of the first lens 21A, so it can form a light and thin feature. For the first lens 21A recessed from the base surface S, the first lens 21A with a smaller recess depth will not cause the eyeglass lens 1 to have weaker anti-bending and anti-twisting performance at the position corresponding to the first lens 21A.

[0044] The surface shape of the first lens 21A can be Figure 1The regular hexagon shown or the equilateral triangle, square, regular octagon, etc. not shown. As a preferred mode, the first lens 21A in each control subunit U may not be a single face type. Specifically, a part of the first lens 21A of the same first lens array in the control subunit U is a lens of an equilateral triangle face type with a shorter side length, and the other part is composed of lenses of other regular polygon face types with a longer side length and a larger number of sides. At this time, the side length of the equilateral triangle can be equal to the side length of the adjacent regular polygon, or 1 / N of the side length of the adjacent regular polygon, to ensure that the corresponding modulation and demodulation functions of each area in the control subunit U are basically the same. Wherein, N is one-half of the number of side lengths of the first lens 21A of other regular polygon face types in the same first lens array 21. For example, for the first lens array 21, the main component adopts the first lens 21A of the regular hexagon face type (referred to as "main lens"), and the non-main component adopts the first lens 21A of the equilateral triangle face type (referred to as "auxiliary lens"), the side length of the auxiliary lens is half of the side length of the main lens.

[0045] Generally speaking, in the same first lens array 21 , the equilateral triangle-shaped first lenses 21A are only arranged at the junction between the control subunit U and the central optical zone 11 and the curved area in the first lens array 21 .

[0046] Continue to see Figure 1 Each first lens array 21 in the control subunit U can be configured to be composed of a plurality of first lenses 21A arranged on a straight line segment. The straight line segment is not in the radial direction of the eyeglass lens 1. Figure 1 In the control subunit U, each first lens array 21 defines only one straight line segment. In other examples, each first lens array 21 may define a plurality of straight line segments parallel to each other.

[0047] The second lenses 22A constituting the second lens array 22 have a prescribed refractive power, or a refractive power close to the prescribed refractive power, for example, the refractive power of the second lenses 22A is, for example, D0±0.5 D. The arrangement of the second lenses 22A of the second lens array 22 and the arrangement of the first lenses 21A in the first lens array 21 can be arranged in the same manner, and will not be described in detail herein.

[0048] The control subunit U composed of the first lens array 21 and the second lens array 22 is generally triangular, and the straight line segment defined by the first lens array 21 (or the second lens array 22) and each adjacent side of the triangle form an angle. The significance of this design is that, on the basis of satisfying the above "the control subunits U at different circumferential positions at the same radial position have the same modulation and demodulation function, the point array diagrams have the same size and different directions", a longer boundary can be formed between the central optical zone 11 and the control zone 20 of the eyeglass lens 1.

[0049] The angle formed by the straight line segment and the side of the triangle can be preferably set to 60°. The triangle defined by the control subunit U is now in the form of an equilateral triangle. Further, each control subunit U is set as follows Figure 1 As shown, only one triangular area is defined. It can be seen that, in this case, the control subunit U located in the diagonal area of ​​the eyeglass lens 1 is a repeating unit.

[0050] This requires combining Figure 1 It should be additionally explained that in the present application, the overall "triangle" or "equilateral triangle" shape of each control subunit U refers to the meaning that at the macro level, the technician can identify that the outer edge of a certain area or component is a triangle. For areas or components that are generally triangular or equilateral triangles, their edges are not necessarily straight line segments or surrounding edges. The edges or surrounding edges can actually be straight line segments, wavy line segments or other forms of broken lines, etc. One or more vertices of the triangle may be missing. On the basis that the technician can identify the shape defined by the outer edge of the area or component, the area or component belongs to the meaning of "generally triangular or equilateral triangle" or "triangular or equilateral triangle". For example, in Figure 1 In the example shown, "the control subunit U having a triangular shape as a whole" or "the control subunit U having a triangular shape" may include "the control subunit U having no neat outer edge (i.e., a smooth straight line segment) but having a triangular shape as a whole". Figure 1 The outer edge of the control subunit U is actually a wavy line, but the technicians can tell that the control area 20 defined by the outer edge of the control subunit U is a "triangle". The "side" of the triangle refers to the straight line segment defined by all the center lines of the first lens 21A and the second lens 22A at the outermost periphery of the control subunit U.

[0051] The outer edge of the entire control area 20 is generally in the form of a regular hexagon. For the meaning of "regular hexagon" or other regular polygons, please refer to the relevant explanation of "triangle" in the previous paragraph, which will not be repeated here.

[0052] Continue to see Figure 1Furthermore, it is preferred that no repeated control subunit U is provided in the lower half of the spectacle lens 1. The wearer will see objects through the lower half of the spectacle lens 1 in some overhead scenes. Not providing repeated control subunit U in the lower half will be more conducive to the spectacle lens 1 being able to provide non-repetitive defocus stimulation during the wearer's eye movement in such scenes, ensuring that the wearer will not have adaptive fatigue to the defocus stimulation after wearing the spectacle lens 1 for a long time, thereby reducing the hyperopia / myopia control effect.

[0053] by Figure 1 Taking the example of as an example, the control zone 20 defines a boundary zone composed of circumferentially continuously and closely laid first lenses 21A in the area bordering the optical zone 10. The length of the inner edge of the boundary zone reaches 78 times the side length of the first lens 21A. At the same time, the diameter of the inscribed circle of the inner edge is 7.2 mm, and the radius of the circumscribed circle is 8.4 mm. In this example, the side length of the first lens 21A is 0.7 mm. Alternatively, when the diameter of the circumscribed circle of the first lens 21A is set in the range of 1.0 mm-2.2 mm, the side length of the first lens 21A can be set to other values. Correspondingly, the inner edge length of the boundary zone can also reach more than 75 times the side length of the first lens 21A.

[0054] In the control subunit U arranged in the above triangle, when the straight line segment defined by the first lens array 21 (the second lens array 22) is set to form an angle with each side of the corresponding triangle, the inner edge of the boundary area can form a longer inner edge as described above. This inner edge is not only within the 10°-20° viewing angle range of the wearer's fovea, but also can completely cover the 10°-20° viewing angle range of the wearer's fovea. According to Earl Smith's theory, the retina is most sensitive to defocus stimulation within this viewing angle range. The longer inner edge of the boundary area designed above will provide a larger and more complete stimulation. In addition, this non-smooth inner edge of the boundary area can provide the wearer with a changing and most sensitive defocus stimulation during the rotation of the eyeball, avoiding the eye from producing adaptive defocus stimulation, and ensuring the long-term and effective myopia / hyperopia control of the eyeglass lens 1.

[0055] It should be noted that the applicant has unexpectedly discovered that the problem of "double image" is common in the myopia prevention and control spectacle lenses 1 provided with defocused microlenses in the prior art. Specifically, the area with prescription refractive power on the myopia prevention and control spectacle lenses 1 of the prior art will form a clear image plane on the wearer's retina, and at the same time, the focus of the imaging sub-wavefront formed by the defocused microlens cluster coincides, thereby forming a second image plane on the imaging plane in front of or behind the retina. Since both image planes are captured by visual cells, the wearer will suffer from the problem of "double image", and some wearers will have eye adjustment disorder at this time. For this reason, the present application sets the focus of the imaging sub-wavefronts of most (more than 80%) or even all of the first lenses 21A to not overlap with each other (that is, "more than 80% of the microlenses, or the imaging wavefronts of all microlenses are not confocal"), that is, the focus of 80% or all of the first lenses 21A is different from each other. These first lenses 21A cannot form clear images in front of and behind the wearer's retina, thereby overcoming the "double image" problem of the prior art spectacle lens 1.

[0056] Under the premise of satisfying the requirement that "the imaging wavefronts of most or all first lenses 21A are not confocal", in addition to the conventional method of setting the first microlenses of the eyeglass 1 to have random refractive powers, the present application also proposes another more advantageous solution: setting the majority (more than 80%) or all first lenses 21A of the eyeglass 1 to have the same refractive power. In order to achieve the purpose of satisfying the requirement that "the imaging wavefronts of all first lenses 21A are not confocal" under the premise of setting uniform refractive power, the applicant further sets each first lens 21A so that the light passing through the center of the first lens 21A and the light passing through the area with the prescribed refractive power on the eyeglass 1 intersect at the retina. In the example of the first lens 21A with a single refractive power, the center lines of these first lenses 21A can be designed to be collinear with the center lines of the corresponding areas of the base surface S of the eyeglass 1. At this time, these first microlenses with additional refractive power will phase-delay the sub-wavefronts corresponding to their surface shape apertures in the incident wavefront, making the sub-wavefronts non-confocal, but the central light rays of the sub-wavefronts are all directed toward the same image point position formed by the basic curved surface on the retina, ensuring that the sub-wavefronts will form a stack at the image point when propagating to the retina, diffusing the ideal image point into a diffuse spot, thereby significantly reducing the image quality formed by the first lens 21A set of the spectacle lens 1. When the wearer's gaze direction passes through the central optical zone 11 of the lens, the central field of view can form a clear image quality, while the peripheral field of view passes through the peripheral microstructure area of ​​the lens, and a blurred imaging effect will be formed on the peripheral retina, thereby playing a control and intervention role in the growth and development of the eye axis and the progression of myopia.

[0057] When the first lens 21A has multiple focal points, it is necessary that any focal point of each first lens 21A is not set on the retina. In this case, the center line of the first lens 21A can be designed to be collinear with the center line of the corresponding area of ​​the base surface S of the spectacle lens 1, and the spectacle lens 1 can also achieve the same function as the spectacle lens 1 with a cluster of first lenses 21A having a single refractive power.

[0058] Optionally, a first lens 21A with multiple focal points is set at the inner edge of the above-mentioned boundary area, and a first lens 21A with a single focal point is set in the remaining area, so as to provide the most favorable defocus stimulation in the most sensitive area of ​​10°-20° field of view.

[0059] Continue to see Figure 1 , the first lens array and the second lens array on the eyeglass 1 are arranged alternately. In addition, each first lens 21A is in surface contact with each other through the surface where the edge of the regular polygon is located. Each first lens array 21 defines a straight line segment, and each second lens array 22 defines a straight line segment. In each adjacent first lens array 21 and second lens array 22 of the control subunit U, the number of first lenses 21A is one more than the number of second lenses 22A.

[0060] The control area 20 can preferably be designed in such a way that the first lens array 21 defining the horizontally arranged straight line segments is not provided in the transverse central area directly below the eyeglass 1. In the case of the eye laterally scanning the object, the central part of the control subunit U of the control area 20 of this design can still reflect the dynamic defocus stimulation.

[0061] See also Figure 5-7 , which shows the modulation and demodulation function of the eyeglass 1 based on the following reference conditions: the side length of the first lens 21A is 0.7mm, and the additional refractive power is +3.5D; the side length of the second lens 22A is 0.7mm, and the additional refractive power is 0. Assuming that the object point is infinite, the center of eyeball rotation is 24mm away from the back vertex of the lens, and the spatial ray tracing method is adopted. Within the entrance pupil diameter of 3mm, the modulation transfer function of each control subunit U at 20lp / mm is in the range of 0.47-0.49, and the modulation transfer function at 30lp / mm is in the range of 0.43-0.45. Therefore, each control subunit U has the same modulation and demodulation function.

[0062] If the size of the first lens 21A is defined above, the corresponding modulation function of each control subunit U at 20lp / mm and 30lp / mm does not change significantly. In general, the modulation transfer function of the control subunit U at 20lp / mm is in the range of 0.45-0.55, and the modulation transfer function at 30lp / mm is in the range of 0.36-0.50.

[0063] It can be seen that the overall difference between the high-frequency spatial frequency and the low-frequency spatial frequency of the eyeglass lens 1 designed above is not obvious, and both can play a good suppression effect.

[0064] For clear display Figure 2-4 For the correspondence between each point diagram and each control subunit U, please refer to Figure 8 , which shows the corresponding point diagram in each control subunit U. In addition, Figure 8 The image of the letter E corresponding to 20 / 32 (~0.6) in the corresponding vision chart of each control subunit U is also shown. Figure 8 The displayed spot diagram and the images of the sub-element E are obtained based on the simulation of the 3mm aperture in each control sub-unit U. Figure 8 As shown, the significance of adjusting each control subunit U to have the same (or substantially the same) modulation and demodulation function is that the wearer can maintain substantially the same clarity of viewing objects through each control subunit U. This can be observed by Figure 8 The corresponding objects "E" of each control subunit U shown can be confirmed. In addition, Figure 5-7 The corresponding Figure 1 The modulation and demodulation function (MTF) data obtained after simulation of the 3mm aperture of the three control subunits U below can also show that the wearer can see objects with basically the same clarity through each control subunit U. This design avoids the dizziness caused to the wearer by changes in image clarity during eye movement.

[0065] In the meantime, please continue to see Figure 8 , and combined with Figure 2-4 It can be seen that when the eyes view objects through adjacent control subunits U, each control subunit U provides a changing defocus stimulus, which can form a dynamic visual stimulation effect under a dynamic field of view and realize irregular phase modulation of the off-axis wavefront.

[0066] Continue to see Figure 1 , in the normal direction of the center of the eyeglass lens 1, the outer edge of the control zone 20 defines a shape that is substantially a regular hexagon. In addition, the outer edge of the control zone 20 may also be substantially square, rectangular, circular, etc. The total area of ​​the coverage area of ​​the control zone 20 on the surface of the eyeglass lens may determine the shape defined by the outer edge of the control zone 20. In general, in embodiments with a control zone 20 having a larger coverage area, the outer edge of the control zone 20 may define more forms of shapes; in embodiments with a control zone 20 having a smaller coverage area, the outer edge of the control zone 20 is preferably set to a circle or a shape with a larger number of side lengths (e.g. Figure 1 hexagon shown).

[0067] Preferably, the optical zone 10 and the control zone 20 are integrally formed. For an integrally formed eye lens, the relative position between the optical zone 10 and the control zone 20 is precisely controlled during the manufacturing process. For an eye lens formed by pasting, it is actually difficult to ensure precise control of the relative position between the control zone 20 and the optical zone 10.

[0068] However, it is not necessary that the optical zone 10 and the control zone 20 are integrally formed. Figure 1 In the illustrated embodiment of the first lens 21A having a convex lens form, the control region 20 may be fixed to the base surface S by bonding.

[0069] In addition, despite Figure 1-8 The control zone 20 shown in the embodiment is formed on the object side surface of the eye lens away from the eyeball. In fact, this is only a preferred embodiment. The control zone 20 can also be formed on the eyeball side surface of the eye lens close to the eyeball; or, the control zone 20 can be formed on both the object side surface and the eyeball side surface of the eye lens.

[0070] Figure 1 The control subunit U shown is only a schematic representation. Based on the above description of the present application, those skilled in the art can also replace it with other solutions, such as Fig. 9 shown.

[0071] It should be noted that, although not shown, the eyepiece is actually provided with any form of mechanism or structure such as a groove, a through hole, a protrusion, etc. near its outer edge and / or at its outer edge for fixing it. These mechanisms or structures are used to fix the eyeglass frame, etc., which are not the innovation of the present disclosure, and whether these contents are disclosed or not does not affect the feasibility of the present disclosure. Here, this article does not elaborate on them.

[0072] The protection scope of the present disclosure is limited only by the claims. Thanks to the teachings of the present disclosure, those skilled in the art will easily recognize that alternative structures of the structures disclosed in the present disclosure can be used as feasible alternative embodiments, and the embodiments disclosed in the present disclosure can be combined to produce new embodiments, which also fall within the scope of the appended claims. Description of the drawings:

[0074] Spectacle lenses:1.

[0075] Optical zone: 10.

[0076] Central optical zone: 11.

[0077] Peripheral Optical Zone:12.

[0078] Controlled areas: 20.

[0079] Control subunit:U.

[0080] First lens array: 21.

[0081] First lens: 21A.

[0082] Second lens array: 22.

[0083] Second lens: 22A.

[0084] Base Surface:S.

Claims

1. A spectacle lens, comprising: an optical zone forming a base surface of the ophthalmic lens and having a prescription power based on an eye prescription of a patient, the optical zone including a central optical zone located in a central area of ​​the ophthalmic lens; as well as A control zone, the control zone surrounds the central optical zone of the spectacle lens, the control zone includes control subunits arranged in sequence in the circumferential direction of the spectacle lens, each control subunit has a plurality of first lens arrays and a second lens array parallel to each other, the first lens array includes a plurality of first lenses bonded to each other, the second lens array includes second lenses bonded to each other, the first lenses and the second lenses have different refractive powers, the first lenses have additional refractive powers compared to the prescribed refractive power, each first lens has a regular polygonal surface, and The control subunits at circumferentially adjacent positions at the same radial position of the eyeglass have a modulation and demodulation function difference within a 3 mm entrance pupil diameter that is less than 0.05, and the point array diagrams are equal in size but different in direction.

2. The eyeglass lens according to claim 1, wherein: The first lens array includes a plurality of first lenses arranged on a straight line segment, and the straight line segment is not in a radial direction of the eyeglass lens.

3. The spectacle lens according to claim 2, wherein: The control subunit is in the shape of a triangle, and the straight line segment and adjacent sides of the triangle form an angle.

4. The spectacle lens according to claim 1, wherein: More than 80% of the focal points of the first lenses are not on the wearer's retina, and the corresponding imaging wavefronts are not confocal.

5. The spectacle lens according to claim 1, wherein: Within an entrance pupil diameter of 3 mm, the modulation transfer function of the control subunit at 20 lp / mm is in the range of 0.45-0.55, and the modulation transfer function at 30 lp / mm is in the range of 0.36-0.

50.

6. The spectacle lens according to any one of claims 1 to 5, wherein: The first lens array and the second lens array are arranged alternately.

7. The spectacle lens according to claim 6, wherein: The first lenses are in surface contact with each other through the surfaces where the edges of the regular polygons are located.

8. The spectacle lens according to any one of claims 1 to 5, wherein: The control subunit is generally triangular in shape.

9. The spectacle lens according to any one of claims 1 to 5, wherein: The control zone defines a boundary zone composed of the first lenses continuously and densely laid out in a circumferential direction in the area bordering the optical zone, the length of the inner edge of the boundary zone is greater than 75 times the side length of the first lens, and the radius of the inscribed circle of the inner edge is not greater than 7.5 mm.

10. The spectacle lens according to claim 9, wherein: The number of side lengths of the regular polygon is selected from any one of 3, 4, 6, and 8.

11. The eyeglass lens according to claim 3, wherein: The straight line segment and the side of the triangle form an angle of 60 degrees.

12. The spectacle lens according to any one of claims 1 to 5, wherein: The eyeglass lens has six control subunits arranged on its circumference.

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