Laser dotting optical out-of-focus lens and glasses

Abstract

The utility model relates to the technical field of out-of-focus lenses, in particular to a laser dotting optical out-of-focus lens and glasses. The optical out-of-focus lens comprises: an optical lens body; a first clear area and a laser processing area are arranged on the first surface of the optical lens body, the first clear area is circular, and the laser processing area comprises a plurality of laser spots which surround the periphery of the first clear area and are recessed relative to the first surface; the laser spot is of a groove structure relative to the first surface and comprises a groove wall and a groove bottom, the groove wall is perpendicular to the position of the first surface, the groove bottom comprises a plane at the edge and a cambered surface protruding relative to the center of the plane, and the cambered surface is consistent with the lens in curvature; a second clear area and a second defocus area are arranged on the second surface of the optical lens body, and the second defocus area comprises a defocus ring arranged around the periphery of the second clear area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of off-focus lenses, in particular to a laser dotting optical off-focus lens and glasses. BACKGROUND

[0002] The traditional off-focus lens is a specially designed lens, which aims to change the minimum focusing distance and focal length of the lens, and then change the size and clarity of the image, by distributing multiple special optical foci, so that the image of the corneal periphery can also fall in front of the cornea or on the cornea. This design not only helps to correct vision, but also delays the development of myopia to some extent.

[0003] For example, Figure 1 (Left: Microscopic schematic along the visual axis direction, right: Microscopic schematic of the cross section), the traditional off-focus lens usually sets a central optical zone and a peripheral functional zone on the side away from the cornea; The central optical zone adopts single optical design to ensure that the image at the center of vision can be clearly projected onto the cornea. The peripheral functional zone is distributed with concentrically arranged point-like off-focus, and the microlens is usually a convex or concave protrusion of a relatively high-precision mirror surface, which changes the optical dispersion by optical superposition with the lens in different areas, so that the image of the corneal periphery can be projected onto or in front of the cornea, and the eye axis growth is controlled through the off-focus image, thereby delaying the deepening of myopia.

[0004] Since the date of the present application, the machining of the microlens is currently customized by mold, which requires very high-precision molds to ensure the accuracy and optical performance of the lens. The manufacture of these molds not only requires high-precision imported machining equipment, but also requires complex manufacturing processes to ensure that each part of the lens can accurately meet the design requirements, but it limits the wide application and further development of off-focus lenses, and the use cycle of off-focus lenses is also long, and the cost of users is also high.

[0005] Therefore, it is necessary to seek new manufacturing technology and method, and thus the present application is proposed. SUMMARY

[0006] In order to solve the problems of high machining precision requirement, high manufacturing cost, limited application and high user cost of off-focus lenses, the present application provides a laser dotting optical off-focus lens and glasses.

[0007] The present application provides an optical defocus lens for laser dotting to solve the above technical problems, the optical defocus lens comprising: an optical lens body; a first clear zone and a laser processing zone arranged on a first surface of the optical lens body, the first clear zone being circular, the laser processing zone comprising a plurality of laser spots recessed relative to the first surface around the periphery of the first clear zone, the laser spots exhibiting a bowl-shaped groove structure relative to the first surface; a second clear zone and a second defocus zone arranged on a second surface of the optical lens body, the second defocus zone comprising a defocus ring arranged around the periphery of the second clear zone; wherein, in the viewing angle relative to the eye axis direction, the first clear zone covers the second clear zone or is consistent, and the defocus ring and the laser spots partially overlap or do not overlap at all, so that the laser spots do not produce a refractive power changing optical effect on the optical lens body.

[0008] In the embodiments of the present application, the laser spots are arranged continuously to form concentric laser rings with the center of the first clear zone as the center, and adjacent concentric laser rings are arranged at intervals; the second clear zone is circular, and the defocus ring is a concentric defocus ring, and adjacent concentric defocus rings are arranged at intervals; wherein the number of concentric laser rings is 8-11 rings; and in the viewing angle relative to the eye axis direction, the concentric laser rings and the concentric defocus rings partially overlap or do not overlap.

[0009] In the embodiments of the present application, when the adjacent concentric laser rings are equidistant, the number of concentric laser rings is 9 rings; the laser spots are arranged in a matrix, and the distance between adjacent concentric laser rings and the distance between any two laser spots in the same ring are equal.

[0010] In the embodiments of the present application, when the adjacent concentric laser rings are not equidistant, the number of concentric laser rings is 10 rings; and in the diverging direction from the first clear zone to the outer periphery, the distance between adjacent concentric laser rings gradually increases.

[0011] In the embodiments of the present application, the diameter of the first clear zone is 8-10 mm; and the diameter of the second clear zone is greater than or equal to that of the first clear zone.

[0012] In the embodiments of the present application, when the adjacent concentric laser rings are not equidistant, and in the diverging direction from the first clear zone to the outer periphery, the distance between adjacent concentric laser rings is n times that of the inner periphery, and n is 1.001-1.012.

[0013] In the embodiments of the present application, the laser spots form polygonal rings centered at the center of the first clear zone, and adjacent polygonal rings are arranged at intervals; the second clear zone is circular, and the defocus ring is a concentric defocus ring, and adjacent concentric defocus rings are arranged at intervals; wherein the number of the polygonal rings is 9 to 10 rings; in the view angle in the direction opposite to the eye axis, the concentric defocus ring forms an inscribed circle or an circumscribed circle of the polygonal ring.

[0014] In the embodiments of the present application, the laser spots form polygonal rings centered at the center of the first clear zone, and adjacent polygonal rings are arranged at intervals; the second clear zone is shell-shaped, and the transverse long axis AB of the second clear zone is 16 to 26 mm, the distance OC from the reference O to the top point C of the second clear zone is ≤7 mm, the distance OD from the reference O to the bottom point D of the second clear zone is ≥12 mm, and the second clear zone completely covers the first clear zone; the number of the polygonal rings is 9 to 10 rings; in the view angle in the direction opposite to the eye axis, part of the polygonal ring is in the second clear zone, and part of the polygonal ring coincides with the defocus ring.

[0015] In the embodiments of the present application, each of the polygonal rings comprises 8+4m edges, wherein m is in the range of 0 to 6.

[0016] In the embodiments of the present application, the vertex power of the defocus ring is in the range of +1.5D~+4.0D or -1.5D~-4.0D, and the defocus amount of the plurality of defocus rings is designed in a progressive manner.

[0017] The second aspect of the present application further provides a pair of glasses comprising a frame and the laser-dotted optical defocus lens.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] The laser-dotted optical defocus lens provided by the present application has the following beneficial effects: the laser spots on the first surface are formed by laser dotting, and present a bowl-shaped groove structure in the cross section relative to the surface of the first surface; although both are recessed on the surface of the lens, and when the purpose is not to change the refractive power of the lens, i.e. the light will not be additionally refracted or focused when passing through the first surface, but the bowl-shaped groove structure is formed to change the relative roughness of the surface of the lens, affect the scattering and reflection behavior of the light on the surface of the lens, and thus achieve the effect of partially blurred imaging.

[0020] The defocus ring refers to a part that changes the curvature of the lens, i.e., forms a surface of different height on the second surface B, thereby changing the focusing point of the light, producing a defocus effect; the defocus ring has the advantage of less processing difficulty, and the defocus ring is usually achieved by changing the curvature or thickness of the lens surface, which is relatively simple and mature, and the laser spot method can be fine-tuned according to the individual visual needs and eyeball conditions, providing more accurate visual correction effect.

[0021] Compared with the traditional microlens defocus design which needs to be customized in each stage, the design strategy of laser spot and defocus ring only needs to process the second clear zone and defocus ring on the second surface, and by changing the morphology and position relationship of the first surface laser spot, according to the individual visual needs and eyeball conditions, by adjusting the morphology, number and position of the laser spot, and the position relationship with the defocus ring, the personalized lens can be customized, that is, the wearer can be adapted in different stages, which avoids frequent mold customization, significantly reduces the processing difficulty and manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used to explain the embodiments of the present application together with the following specific embodiments, but do not constitute a limitation on the embodiments of the present application, in the drawings:

[0023] Figure 1 is a schematic diagram of a multi-focal defocus lens in the prior art provided by the embodiments of the present application along the eye axis view (left) and the cross-sectional view (right);

[0024] Figure 2 is a cross-sectional schematic diagram of an optical defocus lens provided by the embodiments of the present application;

[0025] Figure 3 is a schematic diagram of an optical defocus lens provided in the general concept of the present application along the eye axis view of the first surface (left) and the second surface (right);

[0026] Figure 4 is a partial cross-sectional enlarged view of the optical defocus lens provided in the general concept of the present application along the eye axis view of the first surface;

[0027] Figure 5 is a partial cross-sectional enlarged view of the optical defocus lens provided in the general concept of the present application along the eye axis view of the second surface;

[0028] Figure 6 is a schematic diagram of an optical defocus lens provided by the first embodiment of the present application along the eye axis view of the first surface (left) and the second surface (right);

[0029] Figure 7is a schematic diagram of the first surface (left) and the second surface (right) of the optical defocus lens provided by the second embodiment of the present application along the eye axis viewing angle;

[0030] Figure 8 is another schematic diagram of the first surface (left) and the second surface (right) of the optical defocus lens provided by the second embodiment of the present application along the eye axis viewing angle;

[0031] Figure 9 is a schematic diagram of the first surface (left) and the second surface (right) of the optical defocus lens provided by the third embodiment of the present application along the eye axis viewing angle; and

[0032] Figure 10 is a schematic diagram of the first surface (left) and the second surface (right) of the optical defocus lens provided by the fourth embodiment of the present application along the eye axis viewing angle. DETAILED DESCRIPTION

[0033] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0034] Please refer to Figures 2 to 5 The present application provides a laser dotting optical defocus lens 100, which comprises an optical lens body 10; a first clear area 11 and a laser processing area 12 are arranged on the first surface A of the optical lens body, the first clear area 11 is circular, and the laser processing area 12 comprises a plurality of laser spots a which are recessed relative to the first surface and surround the periphery of the first clear area 11, each laser spot a presents a groove structure relative to the first surface A; specifically, it comprises a groove wall a1 and a groove bottom a2, the groove wall a1 is perpendicular to the curvature at the position of the first surface A, the groove bottom a2 comprises a flat edge a21 and an arc surface a22 which is raised relative to the center of the flat surface a1, and the arc surface a22 is consistent with the curvature of the lens.

[0035] In the general inventive concept of the present application, the laser spot a is initially formed as a blind hole on the lens by laser technology, and during the forming process, high temperature is generated in the hole due to the high energy of the laser; by controlling the continuous action of the laser, the temperature in the hole continues to rise, causing the lens body to liquefy at the bottom of the hole; the liquefied lens material gathers at the center of the hole bottom due to surface tension or thermal convection effect, forming a raised arc surface a22.

[0036] The groove wall a1 is the side wall of the laser spot a, which is perpendicular to the curvature at the position of the first surface A of the lens. This means that the groove wall a1 is at a right angle to the overall curvature direction of the lens, forming a clear boundary, and when the arc surface a22 is consistent with the curvature of the lens, it does not affect the refractive power itself.

[0037] The second clear zone 21 and the second defocus zone 22 are arranged on the second surface B of the optical lens body 10, and the second defocus zone 22 comprises a defocus ring 221 arranged around the periphery of the second clear zone 21; wherein, in the perspective of the relative eye axis direction, the first clear zone 11 covers or coincides with the second clear zone 21, and the defocus ring 221 and the laser spot a partially overlap or do not overlap at all, so that the laser spot a does not produce a dioptric change optical effect on the optical lens body 10.

[0038] The optical lens body 10 is the basic part of the lens, which is usually made of a transparent material with good optical performance, such as PC / PP / resin.

[0039] In the above, in the perspective of the relative eye axis direction, the first surface A and the second surface B are both corresponded in the same coordinate system, such as the laser spot and the defocus ring of the second surface partially overlap or do not overlap at all, and such overlap does not result in a change in the dioptric power of the lens, but only a visual blurring effect.

[0040] It can be understood that the design of the defocus ring 221 is to form a specific defocus area on the lens, which has a change in dioptric power, and the light in this area will deviate from the focal point after passing through the lens.

[0041] When the laser spot partially overlaps with the defocus ring, it does not significantly affect the dioptric effect of the lens but produces a more blurred visual effect; in the perspective of the relative eye axis direction, the first clear zone covers or coincides with the second clear zone, that is, the main visual area of the optical defocus lens 100 (i.e. the clear zone of the first surface and the second surface) is continuous and not interrupted by the presence of the laser spot. Therefore, even if the laser spot exists, it will not significantly affect the overall dioptric effect of the lens.

[0042] The first surface A is a surface of the optical lens body 10 that faces away from the cornea in the wearing condition. The first clear zone 11 is circular and located on the first surface A, which is customized according to the eye axis of the customer, providing clear vision, i.e. normal dioptric effect, to ensure that the wearer can clearly see objects when looking at them. The laser processing area 12 is arranged around the periphery of the first clear zone 11; this area contains a plurality of laser spots a which are recessed relative to the first surface A.

[0043] The laser spot a is formed by laser dotting and presents a groove structure in the cross section. Although they are all recessed on the surface of the lens, and their purpose is not to change the dioptric power of the lens, i.e. they do not cause additional refraction or focusing of light when passing through the first surface, but by forming a bowl-shaped groove structure to change the relative roughness of the lens surface, affecting the scattering and reflection behavior of light on the lens surface, thereby achieving the effect of partially blurred imaging.

[0044] Since the laser spot a forms a groove structure on the lens surface, this structure will change the roughness of the lens surface and the scattering behavior of light. When this structure partially coincides with the defocus ring, the light in the coincident area will be affected by the defocus effect of the defocus ring itself and the scattering and blurring effect caused by the laser spot a. This double effect will further enhance the defocus effect, making the image in this area more blurred; by enhancing the defocus effect of the peripheral area, the over-focusing of the eye on the peripheral image is reduced, which helps to reduce the feeling of eye fatigue. Conversely, when the defocus ring 221 and the laser spot a do not coincide at all, the defocus ring can clearly produce a defocus effect without the interference of the laser spot a. When the light passes through this area, it will deviate from the focus point in the expected way, forming a defocus image; the bowl-shaped groove structure formed by the laser spot a on the lens mainly changes the roughness of the lens surface and the scattering behavior of light. When it does not coincide with the defocus ring, it can produce a specific training effect in other areas of the lens. The two ways can be used for different stages of lens wearers.

[0045] The laser spot a presents an oval or a circle under the eye axis angle, and the application preferably adopts an oval and a circle alternately, i.e. the laser spot a constitutes a ring, and the adjacent laser spots in the same ring are oval and circular respectively, and the diameter of the circle is 0.1 to 3.2 mm, and the long axis of the oval is on the line of the ring, and the length is consistent with the diameter of the circle.

[0046] Since the visual system has a certain adaptability, the alternate arrangement of the oval and the circle of the laser spot a can promote the visual system to gradually adapt to this special visual stimulus, and can more effectively disperse light, avoid interference between adjacent laser spots, reduce the generation of glare and stray light, and make it more effective to control the growth of the eye axis.

[0047] As above, the second surface B is the surface of the optical lens body 10 that is close to the cornea in the wearing condition. The second clear area 21 is located at the center of the second surface B, corresponding to or coinciding with the first clear area 11, so as to keep the clear area of the whole lens clear.

[0048] The second defocus area 22 is a defocus ring arranged around the periphery of the second clear area 21. This area is designed to produce a certain defocus effect, which may be used to slow down the development of myopia or other specific visual treatment purposes.

[0049] In the radial direction perpendicular to the eye axis: the first clear zone 11 covers the second clear zone 21 or is completely consistent with it, that is, the two clear zones overlap in the central part of the lens, ensuring that the wearer can obtain clear vision when looking straight ahead. At the same time, the positional relationship between the defocus ring 221 and the laser spot a is designed so that the design of the laser spot a does not change the refractive power of the lens, so that the laser spot a mainly has a visual training or stimulation effect in the partial area, rather than as part of the refractive correction.

[0050] In this application, the defocus ring refers to the part that changes the curvature of the lens, that is, a surface of different heights is formed on the second surface B, thereby changing the focusing point of light, producing a defocus effect; Specifically, the defocus ring is not composed of a defocus lens, and the focusing behavior of light is affected by changing the curvature of the lens surface. Specifically, the curvature of the defocus ring region is different from the curvature of other regions of the lens, causing the light to deviate when passing through the region, thereby changing the position of the focusing point. The light passing through the defocus ring will form different focusing points. These focusing points can be located in front of or behind the retina, rather than exactly focusing on the retina, and the change in the focusing point produces a defocus effect, which helps to reduce the interference of peripheral light on the visual center.

[0051] And in the overall concept, the ring cannot completely refer to a circular ring, but a defocus band forms a ring shape, which can also be an irregular ring shape.

[0052] The defocus ring has the advantage of less processing difficulty, and the defocus ring is usually achieved by changing the curvature or thickness of the lens surface, which is relatively simple and mature, and the laser spot method has the advantages of high design flexibility, superior optical performance, and low processing cost; The laser spot method can be fine-tuned according to the individual's visual needs and eye conditions to provide more accurate visual correction effect.

[0053] The traditional microlens defocus design needs to be customized for each stage, which increases the manufacturing cost and time; And the design strategy of laser spot and defocus ring only needs to process the second clear zone and defocus ring on the second surface B, and by changing the morphology and positional relationship of the laser spot on the first surface A, according to the individual's visual needs and eye conditions, by adjusting the morphology, number and position of the laser spot, and the positional relationship between them and the defocus ring, to customize the personalized lens, that is, to adapt to the wearer at different stages, which avoids frequent mold customization, significantly reduces the processing difficulty and manufacturing cost.

[0054] Based on the above overall invention concept, the following specific embodiments are provided in this application: Embodiment

[0055] As Figure 6 And Figure 7Embodiment 1 of this application provides an optical defocusing lens 100, configured as follows:

[0056] 1) Lens surface A:

[0057] The first clear area 11 is circular; the laser spot a is continuously arranged on the first surface A to form a concentric laser ring with the center of the first clear area 11 as the center, and the adjacent concentric laser rings are spaced apart.

[0058] In this application, the spacing between adjacent concentric laser rings and the spacing between any two adjacent laser spots are equal.

[0059] Furthermore, the laser spots are arranged in a matrix pattern, with equal spacing between adjacent concentric laser rings and equal spacing between any two adjacent laser spots within the same ring. For example, the lens body has nine concentric laser rings, each with a uniformly distributed number of laser spots 'a'. The spacing between any two adjacent laser spots 'a' within the same ring is equal to 'd1', and the spacing between adjacent concentric laser rings is also equal to 'd1'. This arrangement ensures the uniformity and regularity of the laser spots, resulting in a more balanced blurring effect, reducing the possibility of excessive blurring in certain areas. The uniform arrangement also helps improve the precision and consistency of the laser equipment during processing.

[0060] The number of concentric laser rings is 8 to 11; preferably 9.

[0061] 2) Lens second side B

[0062] The second clear zone 21 is circular, and the defocus rings 221 are concentric defocus rings, spaced apart from each other. These concentric defocus rings exhibit different curvatures on the lens cross-section, creating a myopia defocus signal around the retina. This stimulates the retina's physiological adjustment mechanism, slows axial elongation, and achieves myopia control. The concentric defocus rings, spaced apart from each other, ensure a smooth and even distribution of refractive power, reducing interference from undesirable visual phenomena such as image jump and improving wearing comfort. Furthermore, the arrangement of the concentric defocus rings optimizes the visual experience, making gaze transitions smoother and reducing eye strain.

[0063] 3) The fit between the concentric laser ring and the concentric defocusing ring:

[0064] From a perspective relative to the axial direction of the eye, the concentric laser ring and the concentric defocus ring may partially overlap or not overlap.

[0065] When the concentric laser annulus and the concentric defocus annulus partially overlap in the radial direction, they can correspond to each other and jointly act on the refractive system of the eyeball and the retinal imaging state: Specifically, the design of the concentric laser annulus can ensure that the light forms a uniform light signal stimulus on the lens surface. By precisely controlling the position and spacing of the laser spots, the visual effect of the lens can be optimized, reducing aberrations and distortions, thereby improving visual quality. The laser spots can affect the growth and development of the eyeball by providing additional visual stimulation. In the area partially overlapping with the defocus annulus, this stimulation can be more concentrated and effective, providing further virtualization effect at the already defocused focal point; helping to strongly inhibit the overgrowth of the eye axis, especially in school-age children and adolescents who have already shown a tendency towards eye axis deformation during initial lens fitting.

[0066] When the laser spots do not overlap with the defocus annulus, the defocus annulus can focus more on its myopia prevention function, while the laser spots can provide additional visual stimulation or training effect. The main function of the defocus annulus is to generate a defocus signal to stimulate the physiological regulation mechanism of the retina, thereby slowing down the growth of the eye axis; it can be suitable for patients in the early stages of myopia, reducing the discomfort of wearing glasses.

[0067] Among them, the first clear area 11 has a diameter of 8 to 10 mm;

[0068] The diameter of the second clear area 21 is larger than that of the first clear area 11, so as to completely cover the first clear area 11, or be the same size as the first clear area 11.

[0069] Specifically, the second clear area 21 has two forms. The first form is that its diameter is larger than that of the first clear area (such as Figure 7 ), and only a small proportion of the concentric defocus annulus is formed at the edge of the lens, which has a large proportion of the refractive clear area and a defocus area at the edge; thereby providing a large area of refractive clear area to ensure the clarity of the center and most of the field of view, and the concentric defocus annulus at the edge is used to generate a defocus signal to stimulate the retina, which helps to prevent myopia.

[0070] Another is that the diameter of the second clear area 21 is the same as that of the first clear area 11 (such as Figure 6 ), and a plurality of concentric defocus annuli are formed at the periphery, and the defocus amount of each concentric defocus annulus is different, for example, gradually increasing from inside to outside, such as +0.5D, +0.55D, +0.6D, etc., to produce a gradually increasing defocus effect, more finely control the imaging position on the retina, and thus possibly produce a visual stimulation effect.

[0071] The top power range of the defocus ring 221 is +1.5D~+4.0D or -1.5D~-4.0D; positive defocus (+1.5D to +4.0D) helps slow down the progression of myopia by stimulating the area behind the retina, prompting the eyeball to adjust to slow down the growth of the eye axis; negative defocus (-1.5D to -4.0D) can be used to correct hyperopia or specific needs in visual training, by stimulating the area in front of the retina to improve vision, and the setting of the top power range allows precise adjustment according to the individual needs of the user. For example, for myopia control, a top power closer to +4.0D can be selected; while for hyperopia correction, a top power closer to -4.0D can be selected.

[0072] The defocus amount of each defocus ring 221 gradually changes from the second clear zone, for example, assuming that the defocus amount of the first defocus ring closest to the second clear zone is +2.00D (indicating a +2.00 diopter shift relative to the focal length of clear imaging), the defocus amount of the second defocus ring adjacent to the first defocus ring is +2.25D, i.e. 0.25D more than the first ring; the defocus amount of the third defocus ring is +2.50D, which is 0.25D more than the second ring; and so on, until the last defocus ring away from the second clear zone. The gradually changing defocus amount design allows the lens to transition more smoothly when providing correction, reducing visual jarring and reducing the burden on the eye when adjusting the focal length, allowing the eye to adapt more easily to different visual needs. Embodiments

[0073] As Figure 8 Embodiment two of the present application provides an optical defocus lens 100, which is arranged as follows:

[0074] 1) First surface A of the lens:

[0075] The first clear zone 11 is circular; the laser spots a are continuously arranged on the first surface A to form concentric laser rings with the center of the first clear zone 11 as the center, and the adjacent concentric laser rings are arranged at intervals.

[0076] In this embodiment, the spacing between the laser spots a on the circumference of each concentric laser ring is uniform (such as d1 in the figure), and there are 10 concentric laser rings, but in the divergent direction from the first clear zone to the outer periphery, the spacing between adjacent concentric laser rings is gradually increased.

[0077] In a more specific scheme, when the spacing between adjacent concentric laser rings is not equal, the spacing between the concentric laser rings is n times the inner spacing (such as d3 is n times d2), and n is 1.001~1.012.

[0078] For example, the distance between the first ring close to the first clear zone and the second ring is a (mm), the distance between the second ring and the third ring is a x (1.001-1.012) (mm), the distance between the third ring and the fourth ring is a x (1.001-1.012) x (1.001-1.012) (mm), the distance between the fourth ring and the fifth ring is a x (1.001-1.012) x (1.001-1.012) x (1.001-1.012) (mm), and so on until the ring farthest from the first clear zone.

[0079] Through the above design, the effective defocus can be maximized within a certain field of view, the defocus increases from the center to the periphery, and the initial wearer is more easily adapted; and the closer to the clear zone, the lower the density of the laser spots a, so as to maximize the visual quality of the periphery of the central clear zone.

[0080] 2) Second surface B of the lens:

[0081] The second clear zone 21 is circular, and the defocus ring 221 is a concentric defocus ring, and adjacent concentric defocus rings are arranged at intervals; the concentric defocus ring can form a myopia defocus signal at the periphery of the retina, thereby stimulating the physiological regulation mechanism of the retina, delaying the growth of the eye axis, and achieving the purpose of myopia prevention and control. The defocus ring is a concentric ring, and adjacent rings are arranged at intervals, which can ensure smooth and smooth distribution of refractive power, reduce the interference of adverse visual phenomena such as image jumping, and improve the wearing comfort. At the same time, the arrangement mode of the concentric defocus ring helps to optimize the visual experience, making the visual line switching more smooth and reducing visual fatigue.

[0082] In the relative eye axis direction, the concentric laser ring and the concentric defocus ring partially overlap or do not overlap.

[0083] When the concentric laser ring and the concentric defocus ring partially overlap in the radial direction, they can correspond to each other and jointly act on the refractive system of the eyeball and the retinal imaging state: Specifically, the design of the concentric laser ring can ensure that the light forms a uniform light signal stimulus on the surface of the lens, and by accurately controlling the position and distance of the laser spots, the visual effect of the lens can be optimized, and aberration and distortion can be reduced, thereby improving the visual quality. Laser spots can affect the growth and development of the eyeball by providing additional visual stimuli. In the area partially overlapping with the defocus ring, such stimulation can be more concentrated and effective, providing further blurring effect at the focus point that has already been defocused; it helps to strongly inhibit the excessive development of the eye axis, especially in school-age children and adolescents who have already shown a tendency of eye axis deformation but have not yet been fitted with glasses.

[0084] When the laser spot does not coincide with the defocus ring, the defocus ring can focus more on its myopia prevention function, and the laser spot can provide additional visual stimulation or training effect. The main function of the defocus ring is to generate a defocus signal to stimulate the physiological regulation mechanism of the retina to delay the growth of the eye axis; it can be suitable for patients in the early stage of myopia and can reduce the discomfort of wearing glasses.

[0085] The first clear zone 11 has a diameter of 8 to 10 mm.

[0086] The diameter of the second clear zone 21 is larger than that of the first clear zone 11, so as to completely cover the first clear zone 11, or be the same size as the first clear zone 11.

[0087] Specifically, the second clear zone 21 has two forms. The first form is that the diameter of the second clear zone 21 is larger than that of the first clear zone 11, and only a small concentric defocus ring is formed at the edge of the lens, which occupies a small proportion of the entire lens area. At this time, the lens has a large proportion of dioptric clear zone (such as Figure 8 ), and has a defocus zone at the edge; so as to provide a large area of dioptric clear zone to ensure the clarity of the center and most of the field of view, and the concentric defocus ring at the edge is used to generate a defocus signal to stimulate the retina, which helps to prevent myopia.

[0088] The other is that the diameter of the second clear zone 21 is the same as that of the first clear zone 11 (such as Figure 7 ), and a plurality of concentric defocus rings are formed at the periphery, and the defocus amount of each concentric defocus ring is different, for example, gradually increasing from inside to outside, such as +0.5D, +0.55D, +0.6D, etc., to generate a gradually increasing defocus effect, more finely control the imaging position on the retina, and thus possibly produce a visual stimulation effect.

[0089] The top power range of the defocus ring 221 is +1.5D~+4.0D or -1.5D~-4.0D; positive defocus (+1.5D to +4.0D) helps to slow down the development of myopia, stimulates the area behind the retina to promote eye adjustment to slow down the growth of the eye axis; negative defocus (-1.5D to -4.0D) can be used for correcting hyperopia or adjusting specific needs in visual training, stimulates the area in front of the retina to improve vision, and the setting of the top power range allows precise adjustment according to the individual needs of the user. For example, for myopia control, a top power closer to +4.0D can be selected; and for hyperopia correction, a top power closer to -4.0D can be selected.

[0090] The amount of defocus of each defocus ring 221 gradually changes from the second clear zone, for example, the first defocus ring closest to the second clear zone has a defocus amount of +2.00D (indicating a shift of +2.00 diopters relative to the focal length of clear imaging), the second defocus ring adjacent to the first defocus ring has a defocus amount of +2.25D, i.e. an increase of 0.25D compared to the first ring; the third defocus ring has a defocus amount of +2.50D, which is an increase of 0.25D compared to the second ring; and so on, until the last defocus ring far from the second clear zone. The gradually changing defocus amount design makes the lens provide a smoother transition when providing correction effect, reduces the visual sense of strangeness, reduces the burden of the eye when adjusting the focal length, and makes the eye more easily adapt to different visual needs. Embodiments

[0091] As Figure 9 Embodiment three of the present application provides an optical defocus lens 100, which is arranged as follows:

[0092] 1) The first surface A of the lens:

[0093] The laser spots a constitute a polygonal ring with the center of the first clear zone 11 as the center, and the adjacent polygonal rings are arranged at intervals; specifically, each of the polygonal rings includes 8+4m sides, where m is in the range of 0 to 6.

[0094] That is, the polygonal ring can be an 8-sided polygon, a 12-sided polygon, a 16-sided polygon, a 20-sided polygon, a 24-sided polygon, a 28-sided polygon, a 32-sided polygon, etc., and the polygonal ring has a total of 10 rings.

[0095] In each polygonal ring, the distance between adjacent laser spots is equal (e.g., d1 in the figure), ensuring the uniformity and regularity of the distribution of laser spots.

[0096] It can be understood that the design of the polygonal ring provides more diversified visual stimulation points. Due to the different number of sides, the polygonal ring can form a wider area of the blur zone on the lens compared to the circular ring, thereby triggering a wider visual response.

[0097] 2) The second surface B of the lens:

[0098] The second clear zone 21 is circular, and the defocus rings 221 are concentric defocus annuli arranged at intervals between adjacent concentric defocus annuli. The concentric defocus annuli exhibit different curvatures on the lens cross-section, can form myopic defocus signals at the retina periphery, thereby stimulating the physiological regulation mechanism of the retina, delaying the growth of the eye axis, and achieving the purpose of myopia prevention and control. The defocus rings are concentric annuli and arranged at intervals between adjacent annuli, which can ensure smooth and smooth refractive power distribution, reduce the interference of adverse visual phenomena such as image jumping, and improve wearing comfort. At the same time, the arrangement mode of the concentric defocus annuli helps to optimize the visual experience, making the visual line switching more smooth and reducing visual fatigue.

[0099] 3) The matching relationship of the polygonal ring and the concentric defocus annuli:

[0100] The polygonal ring is 9-10 in number; in the relative eye axis direction, the concentric defocus annuli constitute the inscribed circle or circumscribed circle of the polygonal ring.

[0101] It can be understood that different number of sides and shape designs of the polygonal ring can form more diversified blurred images on the retina, which can stimulate different areas of the retina. The combination of the concentric defocus annuli and the polygonal ring can form more diversified blurred images on the retina. That is, when the concentric defocus annuli serve as the inscribed circle or circumscribed circle of the polygonal ring, the blurring degree of the imaging of the defocus area can be precisely enhanced, which helps to promote the development and maturation of the visual system, can stimulate the growth and connection of visual neurons with high intensity, and inhibit the growth rate of the eye axis.

[0102] The vertex power range of the defocus ring 221 is +1.5D to +4.0D or -1.5D to -4.0D; positive defocus (+1.5D to +4.0D) helps to slow down the development of myopia, stimulates the area behind the retina, and promotes eye adjustment to slow down the growth of the eye axis; negative defocus (-1.5D to -4.0D) can be used for correcting hyperopia or specific needs in visual training, stimulates the area in front of the retina to improve vision, and the setting of the vertex power range allows precise adjustment according to the individual needs of the user. For example, for myopia control, a vertex power closer to +4.0D can be selected; and for hyperopia correction, a vertex power closer to -4.0D can be selected.

[0103] The amount of defocus of each defocus ring 221 gradually changes from the second clear zone, for example, the first defocus ring closest to the second clear zone has a defocus amount of +2.00D (indicating a shift of +2.00 diopters relative to the focal length of clear imaging), the second defocus ring adjacent to the first defocus ring has a defocus amount of +2.25D, i.e. 0.25D more than the first ring; the third defocus ring has a defocus amount of +2.50D, which is 0.25D more than the second ring; and so on, until the last defocus ring away from the second clear zone. The gradually changing defocus amount design makes the lens provide a smoother transition when providing correction effect, reduces the visual sense of strangeness, reduces the burden of the eye when adjusting the focal length, and makes the eye more easily adapt to different visual needs. Embodiments

[0104] As Figure 9 Embodiment four of the present application provides an optical defocus lens 100, which is arranged as follows:

[0105] 1) The first surface A of the lens:

[0106] The laser spots a constitute a polygonal ring with the center of the first clear zone 11 as the center, and adjacent polygonal rings are arranged at intervals; specifically, each polygonal ring includes 8+4m sides, where m is in the range of 0 to 6.

[0107] That is, the polygonal ring can be an 8-sided polygon, a 12-sided polygon, a 16-sided polygon, a 20-sided polygon, a 24-sided polygon, a 28-sided polygon, a 32-sided polygon, etc., and the number of polygonal rings is 10.

[0108] In each polygonal ring, the distance between adjacent laser spots is equal, ensuring the uniformity and regularity of the distribution of laser spots.

[0109] It can be understood that the design of the polygonal ring provides more diversified visual stimulation points. Due to the different number of sides, the polygonal ring can form a wider area of the blur zone on the lens than the circular ring, thereby causing a wider visual response.

[0110] 2) The second surface B of the lens:

[0111] The second clear zone is shell-shaped, with the center of the first clear zone as the reference O, the transverse major axis AB of the second clear zone being 16 to 26 mm, the distance OC from the reference O to the top point C of the second clear zone being ≤7 mm, the distance OD from the reference O to the bottom point D of the second clear zone being ≥12 mm, and the second clear zone completely covering the first clear zone.

[0112] 3) The matching relationship between the polygonal ring and the concentric defocus ring:

[0113] The polygonal ring is 9-10 in number; in the perspective of the relative eye axis direction, the polygonal ring is partially in the second clear zone and partially coincides with the defocus ring.

[0114] The first clear zone and the second clear zone (shell type) in the design jointly act on visual correction. The first clear zone is responsible for clear imaging of central vision, while the second clear zone (shell type) expands the range of clear vision, helping to improve peripheral vision. The shell type design of the second clear zone makes it cover the first clear zone while reducing the visual sense of abruptness. The design that the polygonal ring is partially in the second clear zone and partially coincides with the defocus ring makes the visual blurring effect be strengthened after entering the defocus area, which can be regarded as a kind of visual training means. By adapting the eyes to the alternating changes of blurring and clarity, the accommodation and adaptation abilities of the eyes can be exercised, which helps to stimulate the physiological adjustment mechanism of the retina.

[0115] The top power range of the defocus ring 221 is +1.5D to +4.0D or -1.5D to -4.0D; positive defocus (+1.5D to +4.0D) helps to slow down the development of myopia, stimulates the area behind the retina to cause the eyeball to adjust to slow down the growth of the eye axis; negative defocus (-1.5D to -4.0D) can be used to correct hyperopia or specific needs in visual training, stimulates the area in front of the retina to improve vision, and the setting of the top power range allows precise adjustment according to the individual needs of the user. For example, for myopia control, a top power closer to +4.0D can be selected; while for hyperopia correction, a top power closer to -4.0D can be selected.

[0116] The defocus amount of each defocus ring 221 gradually changes from the second clear zone, for example, assuming that the defocus amount of the first defocus ring closest to the second clear zone is +2.00D (indicating a +2.00 diopter deviation from the focal length of clear imaging), the defocus amount of the second defocus ring adjacent to the first defocus ring is +2.25D, which is 0.25D higher than the first ring; the defocus amount of the third defocus ring is +2.50D, which is 0.25D higher than the second ring; and so on, until the last defocus ring far from the second clear zone. The gradually changing defocus amount design makes the lens provide correction effect more smoothly, reduces the visual sense of abruptness, reduces the burden of the eyes in adjusting the focal length, and makes the eyes more easily adapt to different visual needs.

[0117] The application also provides a pair of glasses, comprising a frame and the laser-dotted optical defocus lens described above.

[0118] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0119] The preferred embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited thereto. Various simple modifications can be made to the technical solutions of the present application within the technical concept of the present application, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present application will not further describe various possible combinations. However, these simple modifications and combinations should also be considered as disclosed in the present application and fall within the protection scope of the present application.

[0120] Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary and should not be construed as limiting the present application, and those of ordinary skill in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A laser-printed optical defocus lens, characterized in that, The optical lens body; located on the first surface of the optical lens body, provided with a first clear area and a laser processing area, the first clear area is circular, and the laser processing area includes a plurality of laser spots recessed relative to the first surface around the periphery of the first clear area; the laser spot presents a groove structure relative to the first surface, including a groove wall and a groove bottom, the groove wall is perpendicular to the position where the first surface is located, and the groove bottom includes a plane of an edge and an arc surface protruding relative to the central plane, the arc surface is consistent with the lens curvature of the optical lens body, so that the laser spot does not produce a refractive power changing optical effect on the optical lens body; located on the second surface of the optical lens body, provided with a second clear area and a second defocus area, the second defocus area includes a defocus ring arranged around the periphery of the second clear area; wherein, in the view angle relative to the eye axis direction, the first clear area covers the second clear area or is consistent, and the defocus ring and the laser spot partially overlap or do not overlap at all.

2. The optically-fuzed lens of claim 1, wherein, The laser spots are continuously arranged to form concentric laser rings with the center of the first clear area as the center, and the adjacent concentric laser rings are arranged at intervals; the second clear area is circular, and the defocus ring is a concentric defocus ring, and the adjacent concentric defocus rings are arranged at intervals; wherein, the number of the concentric laser rings is 8-11 rings; and in the view angle relative to the eye axis direction, the concentric laser rings and the concentric defocus rings partially overlap or do not overlap.

3. The optical defocus lens of claim 2, wherein, When the adjacent concentric laser rings are arranged at equal intervals, the number of the concentric laser rings is 9 rings; the laser spots are arranged in a matrix, and the intervals between the adjacent concentric laser rings and the intervals between any two laser spots in the same ring are equal.

4. The optically-fuzed lens of claim 2, wherein, When the adjacent concentric laser rings are not arranged at equal intervals, the number of the concentric laser rings is 10 rings; and in the diverging direction from the first clear area to the periphery, the intervals between the adjacent concentric laser rings gradually increase.

5. The optical defocus lens of claim 2 or 3, wherein, The diameter of the first clear area is 8-10 mm; the diameter of the second clear area is greater than or equal to that of the first clear area.

6. The optically-fuzed lens of claim 4, wherein, When the adjacent concentric laser rings are not arranged at equal intervals, and in the diverging direction from the first clear area to the periphery, the interval between the adjacent concentric laser rings is n times that of the inner periphery, and n is 1.001-1.

012.

7. The optical decentered lens of claim 1, wherein, The laser spots form a polygonal ring with the center of the first clear area as the center, and the adjacent polygonal rings are arranged at intervals; the second clear area is circular, and the defocus ring is a concentric defocus ring, and the adjacent concentric defocus rings are arranged at intervals; wherein, the number of the polygonal rings is 9-10 rings; in the view angle relative to the eye axis direction, the concentric defocus ring forms an inscribed circle or a circumscribed circle of the polygonal ring.

8. The optical defocus lens of claim 1, wherein, The laser spots constitute a polygonal ring with the center of the first clear zone as the center, and adjacent polygonal rings are arranged at intervals; the second clear zone is a shell type, with the center of the first clear zone as a reference O, the transverse major axis AB of the second clear zone being 16 to 26 mm, the distance OC from the reference O to the top point C of the second clear zone being ≤7 mm, the distance OD from the reference O to the bottom point D of the second clear zone being ≥12 mm, and the second clear zone completely covering the first clear zone; the number of the polygonal rings is 9 to 10 rings; in the visual angle in the direction opposite to the eye axis, part of the polygonal rings is in the second clear zone, and part of the polygonal rings coincides with the defocus ring.

9. The optical defocus lens of claim 6 or 7, wherein, Each of the polygonal rings comprises 8+4m edges, where m ranges from 0 to 6.

10. The optically-fuzed lens of any of claims 1-4 and 6-8, wherein, The top power of the defocus ring ranges from +1.5D to +4.0D or from -1.5D to -4.0D, and the defocus amount of the plurality of defocus rings is progressively designed.

11. Eyeglasses, characterized in that, The optical defocus lens comprising a frame and the laser dotting lens according to any one of claims 1 to 9=10.

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