A multi-axial progressive-vision decentered lens and eyeglasses

Abstract

The embodiment of the present application provides a multi-axial progressive defocus lens and glasses, the multi-axial progressive defocus lens comprises a lens body, the lens body comprises an optical center and an optical optimization region enclosed by the optical center; a plurality of virtual optical axes in different directions are defined on the lens body, the number of the virtual optical axes is 4n (n >= 1), a preset range of the optical center is taken as a starting defocus point, and the spherical power number gradually changes from the starting defocus power along the direction of each virtual optical axis. Therefore, the progressive defocus optical lens with the clear zone form or the area that can be designed is formed, different visual angles are respectively corresponding to each axis, the visual field distortion and the visual aberration at the edge of the lens can be greatly reduced, and the lens has a wide and clear visual field.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of lens manufacturing, in particular to the production of multi-axial lenses. The present application provides a multi-axial progressive defocus lens and glasses. BACKGROUND

[0002] Traditional lenses are usually designed as single-axis (linear) or two-axis cross-shaped. However, due to the excessive "astigmatic zone" of traditional lenses, such lenses cannot meet the actual needs of lens wearers. That is, the edge area of the lens will be blurred, and the higher the degree of spherical and cylindrical lenses, the larger the astigmatic zone, and thus the larger the blurred area of the field of view. For example, in a conventional progressive multifocal lens, the lens wearer can see distant and close objects through the far and near zones, respectively. The intermediate zone allows the lens wearer to see objects at a distance, close, and intermediate distances. However, due to the presence of certain power changes in the peripheral regions of the lens, the clarity of objects viewed through this region will decrease, that is, the lens edge produces field distortion or visual aberration, thereby limiting the effective field of view of the lens wearer.

[0003] Therefore, the present application provides a product with an advantage in clear zone form or area. SUMMARY

[0004] To solve the technical problems in the prior art, the present application provides a multi-axial progressive defocus lens and glasses.

[0005] In a first aspect of the present application, a multi-axial progressive defocus lens is provided, comprising a lens body, the lens body comprising an optical center and an optical optimization region surrounding the optical center; characterized in that a starting defocus point is taken at the boundary of a predetermined range of the optical center; a plurality of virtual optical axes in different directions are defined on the lens body, and the spherical power gradually changes from the starting defocus power along the direction of each virtual optical axis.

[0006] In an optional scheme of the present application, the spherical power increases from the starting defocus power along the direction of the virtual optical axis; the region between any two adjacent virtual optical axes on the lens body uses optical transition.

[0007] In an optional scheme of the present application, the optical optimization region is surrounded by a specific form, and the specific form includes a shell shape, a progressive shape, and an anti-fatigue shape; when the optical optimization region is a progressive shape and an anti-fatigue shape, the optical optimization region includes two symmetrical blind zones, and the cylindrical power of the blind zone is -2.0D to -5.0D.

[0008] In the optional scheme of the present application, when the optical optimization region adopts the progressive shape and the anti-fatigue shape, the starting defocus point is any point on the circular boundary of the optical center, wherein the diameter of the circular boundary is 8-11 mm; when the optical optimization region adopts the shell shape, the starting defocus point is at the boundary of the optical optimization region.

[0009] In the optional scheme of the present application, the maximum defocus amount of the spherical power from the starting defocus power in the direction of each virtual optical axis is selected from the range of +2.5 to +4.5 D, and when the optical optimization region is the progressive shape and the anti-fatigue shape, the starting defocus power spherical power on the 270-axis and the progressive defocus value are inconsistent.

[0010] In the optional scheme of the present application, the number of virtual optical axes is 4n (n≥1), and the spherical minimum unit of the lens body is 0.05 D to realize 0.05 D step design.

[0011] In the optional scheme of the present application, 8 virtual optical axes in different directions are defined on the lens body, which are 45-axis, 90-axis, 135-axis, 180-axis, 225-axis, 270-axis, 315-axis and 360-axis, respectively.

[0012] In the optional scheme of the present application, the optical optimization region adopts the progressive shape or the anti-fatigue shape; wherein the starting defocus power corresponding to the 90-axis is +0.01 to +0.02 D, and the progressive defocus value in the axial direction is +0.01 to +0.02 D; the starting defocus power corresponding to the 135-axis and the 315-axis is +0.01 to +0.02 D, and the progressive defocus value in the axial direction is +0.07 to +0.26 D; the starting defocus power corresponding to the 180-axis and the 360-axis is +0.01 to +0.08 D, and the progressive defocus value in the axial direction is +0.01 to +0.08 D; the starting defocus power corresponding to the 225-axis and the 45-axis is +0.21 to +1.04 D, and the progressive defocus value in the axial direction is +0.21 to +1.04 D; the starting defocus power corresponding to the 270-axis is +0.01 to +0.02 D, and the progressive defocus value in the axial direction is +0.18 to +0.33 D.

[0013] In the optional solution of the present application, the lens body is defined to divide 8 virtual optical axes in different directions, which are 45 axis, 90 axis, 135 axis, 180 axis, 225 axis, 270 axis, 315 axis and 360 axis; the optical optimization region adopts a shell shape; wherein the starting defocus power corresponding to the 90 axis is +0.01 to +0.04D, and the progressive defocus value in the axial direction is +0.01 to +0.04D; the starting defocus power corresponding to the 135 axis and the 315 axis is +0.02 to +0.1D, and the progressive defocus value in the axial direction is +0.02 to +0.1D; the starting defocus power corresponding to the 180 axis and the 360 axis is +0.07 to +0.26D, and the progressive defocus value in the axial direction is +0.07 to +0.26D; the starting defocus power corresponding to the 225 axis and the 45 axis is +0.01 to +0.26D, and the progressive defocus value in the axial direction is +0.01 to +0.26D; the starting defocus power corresponding to the 270 axis is +0.01 to +0.33D, and the progressive defocus value in the axial direction is +0.01 to +0.33D.

[0014] In the optional solution of the present application, the multi-axis progressive defocus lens is a double aspheric or single aspheric design.

[0015] In the optional second aspect of the present application, an eyeglass is also provided, and the lens is made of the multi-axis progressive defocus lens.

[0016] Beneficial effects:

[0017] In summary, the multi-axis progressive defocus lens provided by the embodiment of the present application includes a lens body, the lens body includes an optical center and an optical optimization region surrounded by the optical center, and the boundary of the preset range of the optical center is used as a starting defocus point; a plurality of virtual optical axes in different directions are defined on the lens body, and the spherical power from the starting defocus power changes progressively along the direction of each virtual optical axis; thus, the progressive defocus optical lens with clear zone form or area under the premise of design is formed, each axis corresponds to a different visual angle, the visual field distortion and visual aberration at the edge of the lens can be greatly reduced, the lens has a wide and clear visual field, a suitable customized solution is provided according to the individual visual sensitivity, any direction of the effective visual field provides comfortable visual experience for the wearer, and the wearer cannot feel the difference in refractive power between the virtual optical axes or adjacent virtual optical axes when looking at objects. And with the increase of the number of virtual optical axes, the refractive power transition of the lens is smoother.

[0018] Other features and advantages of the embodiment of the present application will be described in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a multi-axis progressive defocus lens provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the fatigue-resistant design of the optical optimization area of ​​the 8-axis progressive defocus lens provided in an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the progressive shape design of the optical optimization area of ​​the 8-axis progressive defocus lens provided in an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram illustrating the shell-shaped optical optimization region of the multi-axis progressive defocus lens provided in an embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram illustrating the design of an anti-fatigue or progressive optical optimization region for a 16-axis progressive defocus lens provided in an embodiment of the present invention; and

[0025] Figure 6 This is a schematic diagram of a shell-shaped optical optimization area for a 16-axis progressive defocus lens provided in an embodiment of the present invention.

[0026] Figure Labels

[0027] 100. Multi-axis progressive defocus lens; 101. Lens body;

[0028] 101a, Optical optimization area; 102, Blank. Detailed Implementation

[0029] To make the above and other features and advantages of the present invention clearer, the invention will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explanation to those skilled in the art and are exemplary only, not restrictive.

[0030] Please see Figure 1 ; Figure 1 This is a schematic diagram of a multi-axis progressive defocus lens provided in an embodiment of the present invention.

[0031] In the foregoing, the present application provides a multi-axial progressive defocus lens 100, comprising a lens body 101, which is cut from a circular blank 102 with D=75mm and can be processed into different frame shapes according to user needs. The lens body 101 comprises an optical center A and an optical optimization area 101a enclosed by the optical center A;

[0032] The optical center A is the optical center of the blank 102. In lens fitting, the intersection of the optical axis and the front of the lens body 101 is defined as the optical center, which can be adaptively designed according to the user's pupil and the fitted lens frame shape. Generally, the optical center of the lens body 101 is offset by 1-3mm from the geometric center of the lens. It can be understood that the wearer has a better imaging effect through the optical center, and it is not easy to deform the view in this area, and the eyes are also less likely to feel fatigue.

[0033] In the present application, the connecting line of the progressive defocus seven points from the optical center A to the periphery forms a specific shape, i.e. the above-mentioned optical optimization area 101a, which can also be understood as the clear zone on the traditional lens.

[0034] Further, the optical optimization area is enclosed into a pre-set specific shape, and the specific shape includes a shell shape, a progressive shape and an anti-fatigue shape Figure 1 The one demonstrated is an anti-fatigue shape); other shapes can also be designed according to the optical design needs of the lens wearer.

[0035] In the present application, the boundary B of the pre-set range of the optical center A is used as the starting defocus point; a plurality of virtual optical axes i in different directions are defined on the lens body 101, and the spherical power gradually changes from the starting defocus power along each virtual optical axis in the direction of the virtual optical axis.

[0036] It can be understood that it needs to be explained that the virtual optical axis is only used to represent the direction corresponding to the multi-axial progressive defocus design, and there is no substantial virtual optical axis and boundary line in actual production.

[0037] The number of virtual optical axes is 4n (n≥1), preferably 8n, and according to the design, 8-axis, 16-axis, 32-axis, etc. can be used; taking an 8-axis progressive defocus design as an example, the center of the lens body 101 is divided into 8 virtual optical axes at equal angles, and the angle between adjacent two virtual optical axes is 45 degrees. For example, Figure 1As shown, the 8 virtual optical axes are respectively 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315° direction of the virtual optical axis. Among them, the defocus amount corresponding to the direction of each virtual optical axis gradually changes from the starting defocus power to adapt to the personalized setting of the lens. Adapt to the needs of different wearers and different use scenarios, improve the adaptability and flexibility of the lens optical design.

[0038] In this application, the progressive defocus change along the direction of the virtual optical axis is based on the distance from the point on the lens to the starting defocus point. Taking the 270 axis as an example, the spherical power of points a and b on the 270 axis is different because the distance from the starting defocus point is different; The distance can be specified according to the degree of progressive change required by the user; The above-mentioned "progressive defocus change" refers to the spherical power increasing from the starting defocus power along the direction of the virtual optical axis.

[0039] In some embodiments, the power change from the defocus starting point along the axis can also be gradually decreased or averaged.

[0040] In further schemes in embodiments of the application, the area between any two adjacent virtual optical axes on the lens body 101 adopts optical transition.

[0041] Specifically, the area between any two adjacent virtual optical axes on the lens body 101 is an optical transition area, and the refractive power of the optical transition area continuously changes according to the spherical power on the corresponding virtual optical axis. For example:

[0042] Taking the 90-axis and the 45-axis adjacent to the 8-axis as an example, the spherical power of a point O1 on the 90-axis is +1.5D, and the spherical power of O2 on the 45-axis is +1D. 2处 Corresponding to +1D, from O1 to O2, a continuous transition is adopted, that is, the area between 1.5D and 1D is 1.5D, 1.49D, 1.48D...1.01D, 1D (only an example), that is, there are multiple focal points between the two adjacent virtual optical axes, and the spherical power does not exist. Gradual transition without large jumps. The lens body does not have obvious boundaries.

[0043] It can be understood that for each virtual optical axis direction, the optical transition is performed towards both sides of the virtual optical axis as the center axis, so that the power (or defocus amount) of the area between each virtual optical axis of the lens body 101 can be smoothly transitioned, avoiding the exact refractive power boundary affecting the actual use effect of the lens.

[0044] In embodiments of the application, the maximum defocus amount of the progressive defocus change of the spherical power from the starting defocus power along the direction of each virtual optical axis can be selected in the range of +2.5~+4.5D.

[0045] Further, the minimum unit of the spherical power of the lens body is 0.05D, so as to realize 0.05D step design. It can be understood that the lens body can adopt 0.05D step design, that is, when the accurate refractive correction requirement degree and the lens manufacturing degree are confirmed, the precise refractive correction with the precision of 0.05D (such as +1.0D, +1.05D, +1.10D, etc.) can be realized, compared with the traditional 0.25D step or 0.50D step lens design and manufacturing method, the spherical power can be more accurate, and the real refractive correction requirement of the wearer can be obtained. Wherein, D represents diopter unit, 1D=100°.

[0046] In the present application, the multi-axis progressive defocus lens is a double aspheric surface or a single aspheric surface design. The purpose of changing the spherical surface into the aspheric surface is to be closer to the feeling of naked eye vision, so that the visual distortion of the edge region of the lens is reduced, such as the double aspheric surface design which offsets the lens thickness in the form of two surfaces superimposed, effectively reduces the visual distortion caused by the edge curvature. The imaging is clearer and more real, and the maximum panoramic wide field of view is realized.

[0047] The following is described by specific embodiments:

[0048] 【8-axis progressive shape and anti-fatigue shape】

[0049] Please continue to refer to Figure 2 and Figure 3 , Figure 2 The design schematic diagram of the optical optimization area of the 8-axis progressive defocus lens provided in the embodiments of the present application is an anti-fatigue shape; Figure 3 The design schematic diagram of the optical optimization area of the 8-axis progressive defocus lens provided in the embodiments of the present application is a progressive shape.

[0050] In the further scheme of the present application, when the optical optimization area 101a adopts the progressive shape and the anti-fatigue shape, the starting defocus point is any point on the circular boundary B1 of the optical center A;

[0051] In the present application, the diameter of the circular boundary B1 is 8-11mm; the value is formulated according to the pupil condition of the user.

[0052] As can be seen from the figure, the anti-fatigue shape and the progressive shape both have a blind area 101b (the shaded part in the figure) around the 90° axis symmetrically in the optical optimization area; it can be understood that the design principle of the anti-fatigue lens and the progressive lens is the same, both of which are designed by using progressive multi-focal design, the difference is that the shape of the optical optimization area 101a is different, so the area of the blind area 101b is different. The anti-fatigue shape and the progressive shape are both divided into three areas on the lens, the upper side of the shortest connecting line of the symmetrical blind area is the far vision area, the lower side is the near vision area, the far vision area has a degree corresponding to the degree of ordinary glasses when looking far, and the near vision area is a positive lens with a certain degree added to the far vision degree, which means that the degree is reduced for myopia. The middle area of the lens is a transition zone, which can ensure the smooth transition of the degree from far to near through progressive zooming, and avoid the phenomenon of image jumping. Therefore, when looking near, it is equivalent to wearing a pair of glasses with a relatively low degree, which can reduce the use of ciliary accommodation force, and through the compensation of the near vision area of the anti-fatigue lens, it can reduce the discomfort caused by long-time near vision, and has the effect of anti-fatigue.

[0053] In the present application, a cylindrical lens is used in the blind area 101b to eliminate unclear images in the blind area, wherein the cylindrical degree of the blind area 101b is-2.0D to-5.0D.

[0054] It can be understood that, in addition to the blind area using a cylindrical lens to eliminate the effect of astigmatism, the other areas all use spherical lenses.

[0055] Further, from the circular boundary B1 along the direction of each axis, the spherical degree gradually changes from the starting defocus degree along the direction of each virtual optical axis.

[0056] Among them, the anti-fatigue shape and the progressive shape of the 8-axis are taken as examples, 8 virtual optical axes located in different directions are defined and divided on the lens body, which are 45-axis, 90-axis, 135-axis, 180-axis, 225-axis, 270-axis, 315-axis and 360-axis; the optical optimization area adopts a progressive shape or an anti-fatigue shape.

[0057] In a specific scheme, the initial defocus power corresponding to the 90-axis is +0.01 to +0.02D, preferably +0.01D, and the progressive defocus value in the axial direction is +0.01 to +0.02D, preferably +0.01D; the initial defocus power corresponding to the 135-axis and the 315-axis is +0.07 to +0.26D, preferably +0.1 to +0.2D, and the progressive defocus value in the axial direction is +0.07 to +0.26D, preferably +0.1 to +0.2D; the initial defocus power corresponding to the 180-axis and the 360-axis is +0.01 to +0.08D, preferably +0.02 to +0.06D, and the progressive defocus value in the axial direction is +0.01 to +0.08D, preferably +0.02 to +0.06D; the initial defocus power corresponding to the 225-axis and the 45-axis is +0.21 to +1.04D, preferably +0.3D to +0.8D, and the progressive defocus value in the axial direction is +0.21 to +1.04D, preferably +0.3D to +0.8D; the initial defocus power corresponding to the 270-axis is +0.01 to +0.02D, preferably +0.01D, and the progressive defocus value in the axial direction is +0.18 to +0.33D, preferably 0.25D (as shown in Table 1).

[0058] Table 1

[0059]

[0060]

[0061] In combination with the drawings, the initial defocus power B1 from the boundary point of the circular area, the spherical power gradually increases in the axial direction with progressive defocus, and is particularly optimized for the oblique view angle and the downward view angle, so that the aberration area of the lens edge is reduced, thereby providing a larger effective field of view.

[0062] As can be seen from the table, when the optical optimization area is progressive and fatigue-resistant, the initial defocus power spherical power and the progressive defocus value corresponding to the 270-axis are inconsistent, specifically, the progressive defocus value is greater than the initial defocus power spherical power; as the spherical power of the lens body gradually increases in the 270-axis direction, the design is mainly based on the view angle of the wearer, and the 270-axis corresponds to the downward view angle of the user, which is the commonly used downward view angle of the user, and a higher progressive defocus value is needed to match to ensure the clarity of the edge in the downward view angle of the user and reduce the aberration in this view angle.

[0063] 【8-axis shell shape】

[0064] Please refer to Figure 4 , Figure 4 The design schematic diagram of the optical optimization area of the multi-axis progressive defocus lens provided by the embodiment of the present application is a shell shape.

[0065] When the optical optimization region 101a adopts the shell shape, the starting defocus point is at the boundary B2 of the optical optimization region, as shown in Figure 2 .

[0066] The lens body is defined to divide 8 virtual optical axes in different directions, which are 45 axis, 90 axis, 135 axis, 180 axis, 225 axis, 270 axis, 315 axis and 360 axis respectively;

[0067] The optical optimization region adopts the shell shape; wherein the starting defocus power corresponding to the 90 axis is +0.01 to +0.04D, preferably +0.01 to +0.03D, and the progressive defocus value in the axial direction is +0.01 to +0.04D, preferably +0.01 to +0.03D; the starting defocus power corresponding to the 135 axis and the 315 axis is +0.02 to +0.1D, preferably +0.03 to +0.08D, and the progressive defocus value in the axial direction is +0.02 to +0.1D, preferably +0.03 to +0.08D; the starting defocus power corresponding to the 180 axis and the 360 axis is +0.07 to +0.26D, preferably +0.1 to +0.2D, and the progressive defocus value in the axial direction is +0.07 to +0.26D, preferably +0.1 to +0.2D; the starting defocus power corresponding to the 225 axis and the 45 axis is +0.01 to +0.26D, preferably +0.02 to +0.2D, and the progressive defocus value in the axial direction is +0.01 to +0.26D, preferably +0.02 to +0.2D; the starting defocus power corresponding to the 270 axis is +0.01 to +0.33D, preferably +0.01 to +0.25D, and the progressive defocus value in the axial direction is +0.01 to +0.33D, preferably +0.01 to +0.25D.(As shown in Table 2 below)

[0068]

[0069]

[0070] 【16-axis progressive and anti-fatigue】

[0071] Please refer to Figure 5 , Figure 5 The optical optimization region of the 16-axis progressive defocus lens provided by the embodiments of the present application is an anti-fatigue or progressive design schematic diagram.

[0072] In further schemes of the present application, when the optical optimization region 101a adopts the progressive and anti-fatigue shape, the starting defocus point is any point on the circular boundary B1 of the optical center A;

[0073] In the present application, the diameter of the circular boundary B1 is 8-11mm; the value is made according to the pupil condition of the user.

[0074] The 16 virtual optical axes in different directions are defined on the lens body, which are 22.5 axis, 45 axis, 67.5 axis, 90 axis, 112.5 axis, 135 axis, 157.5 axis, 180 axis, 202.5 axis, 225 axis, 247.5 axis, 270 axis, 292.5 axis, 315 axis, 337.5 axis, 360 axis; the optical optimization area adopts progressive or anti-fatigue shape, wherein the starting defocus power and the progressive defocus value are shown in Table 3.

[0075] Table 3

[0076]

[0077]

[0078] 【16-axis shell shape】

[0079] Please refer to Figure 6 , Figure 6 The design schematic diagram of the optical optimization area of the 16-axis progressive defocus lens provided by the embodiment of the present application is a shell shape.

[0080] When the optical optimization area 101a adopts the shell shape, the starting defocus point is the boundary B2 of the optical optimization area, 16 virtual optical axes in different directions are defined on the lens body, which are 22.5 axis, 45 axis, 67.5 axis, 90 axis, 112.5 axis, 135 axis, 157.5 axis, 180 axis, 202.5 axis, 225 axis, 247.5 axis, 270 axis, 292.5 axis, 315 axis, 337.5 axis, 360 axis; the optical optimization area adopts the shell shape, wherein the starting defocus power and the progressive defocus value are shown in Table 4.

[0081] Table 4

[0082]

[0083] 【32-axis progressive or anti-fatigue】

[0084] When the optical optimization area 101a adopts the progressive or anti-fatigue shape (omitted in the figure), the starting defocus point is any point on the circular boundary Bl of the optical center A, which defines 32 virtual optical axes in different directions on the lens body, which are 11.25 axes, 22.5 axes, 33.75 axes, 45 axes, 56.25 axes, 67.5 axes, 78.75 axes, 90 axes, 101.25 axes, 112.5 axes, 123.75 axes, 135 axes, 146.25 axes, 157.5 axes, 168.75 axes, 180 axes, 191.25 axes, 202.5 axes, 213.75 axes, 225 axes, 236.25 axes, 247.5 axes, 258.75 axes, 270 axes, 281.25 axes, 292.5 axes, 303.75 axes, 315 axes, 326.25 axes, 337.5 axes, 348.75 axes and 360 axes; the optical optimization area adopts the shell shape, wherein the starting defocus power and the progressive defocus value are shown in Table 5.

[0085] Table 5

[0086]

[0087]

[0088]

[0089] 【32 axes shell shape】

[0090] When the optical optimization area 101a adopts the shell shape (omitted in the figure), the starting defocus point is the boundary B2 of the optical optimization area; 32 virtual optical axes in different directions are defined on the lens body, which are 11.25 axes, 22.5 axes, 33.75 axes, 45 axes, 56.25 axes, 67.5 axes, 78.75 axes, 90 axes, 101.25 axes, 112.5 axes, 123.75 axes, 135 axes, 146.25 axes, 157.5 axes, 168.75 axes, 180 axes, 191.25 axes, 202.5 axes, 213.75 axes, 225 axes, 236.25 axes, 247.5 axes, 258.75 axes, 270 axes, 281.25 axes, 292.5 axes, 303.75 axes, 315 axes, 326.25 axes, 337.5 axes, 348.75 axes and 360 axes; the optical optimization area adopts the shell shape, wherein the starting defocus power and the progressive defocus value are shown in Table 6.

[0091] Table 6

[0092]

[0093]

[0094]

[0095] It can be understood that the virtual optical axes can also be 64 axes, 128 axes, etc., which are not exemplified in the embodiments of the present application. With the increase in the number of axes, the transition is smoother with the increase in the number of virtual optical axes.

[0096] In summary, the multi-axis progressive defocus lens 100 provided by the embodiments of the present application includes a lens body 101, the lens body 101 includes an optical center A and an optical optimization area 101a surrounded by the optical center A, and the boundary of the preset range of the optical center A is used as a starting defocus point; a plurality of virtual optical axes in different directions are defined on the lens body; from the starting defocus point, the spherical power gradually changes in the direction of each virtual optical axis; thus, the progressive defocus optical lens with clear zone form or area under the premise of design is formed, each axis corresponds to a different visual angle, which can greatly reduce the effective visual field distortion and visual aberration at the edge of the lens, and the lens has a wide and clear effective visual field; a suitable customized solution is provided according to the individual visual sensitivity, and the wearer can have the most comfortable visual experience regardless of the oblique view, the upward view, etc.

[0097] In another aspect, the embodiments of the present application also provide a pair of glasses, which includes a glasses frame and a lens, and the lens is made of the multi-axis progressive defocus lens mentioned in the above embodiments.

[0098] Further, those skilled in the art should understand that if all or part of the sub-modules involved in each product of the multi-axis progressive defocus lens provided by the embodiments of the present application are combined, replaced, transformed, etc. by means of fusion, simple change, mutual transformation, etc., such as the movement of the position of each component; or the integral setting of the product formed thereby; or the detachable design; as long as the combined components can constitute a device / apparatus / system with a specific function, the use of such device / apparatus / system instead of the corresponding components of the present application also falls within the protection scope of the present application.

[0099] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0100] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that variations, modifications, substitutions and changes can be made by those skilled in the art without departing from the optional scope of the present application.

Claims

1. A multi-axis progressive defocusing lens, comprising a lens body, the lens body including an optical center and an optical optimization region enclosed by the optical center; characterized in that: Multiple virtual optical axes located in different directions are defined on the lens body. The number of virtual optical axes is 4n (n≥1). The boundary of the preset range of the optical center is taken as the starting defocus point. From the starting defocus point, the spherical power changes gradually from the starting defocus power along the direction of each virtual optical axis. Virtual optical axes located in different directions are defined on the lens body, namely 22.5 axis, 67.5 axis, 112.5 axis, 157.5 axis, 202.5 axis, 247.5 axis, 292.5 axis, and 337.5 axis; The initial defocus intensity corresponding to the 112.5 axis and the 292.5 axis is +0.01 to +0.03D, and the progressive defocus intensity along the axis is +0.01 to +0.03D. The initial defocus power corresponding to the 157.5 axis and 337.5 axis is +0.01 to +0.08D, and the progressive defocus value along the axis is +0.01 to +0.08D. The initial defocus power corresponding to the 202.5 axis and the 22.5 axis is +0.02 to +0.12D, and the progressive defocus value along the axis is +0.02 to +0.12D. The initial defocus power corresponding to the 247.5 axis and the 67.5 axis is +0.01 to +0.26D, and the progressive defocus value along the axis is +0.01 to +0.26D.

2. The multi-axis progressive defocusing lens according to claim 1, characterized in that, The spherical lens power increases from the initial defocus power along the virtual optical axis; The region between any two adjacent virtual optical axes on the lens body adopts an optical transition.

3. The multi-axis progressive defocus lens according to claim 1, characterized in that, The optical optimization region is formed into a preset specific shape, which includes a shell shape, a progressive shape, and a fatigue-resistant shape. When the optical optimization region is a progressive shape or a fatigue-resistant shape, the optical optimization region includes two symmetrical blind zones, and the cylindrical power of the blind zones is -2.0D to -5.0D.

4. The multi-axis progressive defocusing lens according to claim 3, characterized in that, When the optical optimization region adopts a progressive and fatigue-resistant shape, the initial defocus is any point on the circular boundary with the optical center, wherein the diameter of the circular boundary is 8-11 mm. When the optical optimization region adopts a shell shape, the starting defocus is at the boundary of the optical optimization region.

5. The multi-axis progressive defocus lens according to claim 4, characterized in that, The maximum defocusing amount, in which the spherical lens power gradually changes from the initial defocusing power along each of the virtual optical axes, can be selected within a range of +2.5 to +4.5D. When the optical optimization region is progressive or fatigue-resistant, the initial defocus power spherical lens power and the progressive defocus value on the 270 axis are inconsistent.

6. The multi-axis progressive defocus lens according to claim 4, characterized in that, The smallest spherical lens unit of the lens body is 0.05D, so as to achieve an advanced design of 0.05D.

7. The multi-axis progressive defocusing lens according to claim 6, characterized in that, Eight virtual optical axes located in different directions are defined on the lens body, namely the 45 axis, 90 axis, 135 axis, 180 axis, 225 axis, 270 axis, 315 axis, and 360 axis. The optical optimization region adopts a progressive or fatigue-resistant shape; The initial defocus value corresponding to the 90-axis is +0.01 to +0.02D, and the progressive defocus value along the axis is +0.01 to +0.02D. The initial defocus power corresponding to the 135 axis and 315 axis is +0.07 to +0.26D, and the progressive defocus value along the axis is +0.07 to +0.26D; The initial defocus power corresponding to the 180-axis and 360-axis is +0.01 to +0.08D, and the progressive defocus value along the axis is +0.01 to +0.08D. The initial defocus power corresponding to the 225 axis and 45 axis is +0.21 to +1.04D, and the progressive defocus value along the axis is +0.21 to +1.04D. The initial defocus value corresponding to the 270 axis is +0.01 to +0.02D, and the progressive defocus value along the axis is +0.18 to +0.33D.

8. The multi-axis progressive defocusing lens according to claim 6, characterized in that, Eight virtual optical axes located in different directions are defined on the lens body, namely the 45 axis, 90 axis, 135 axis, 180 axis, 225 axis, 270 axis, 315 axis, and 360 axis. The optical optimization region adopts a shell shape; The initial defocus value corresponding to the 90-axis is +0.01 to +0.04D, and the progressive defocus value along the axis is +0.01 to +0.04D. The initial defocus power corresponding to the 135 axis and 315 axis is +0.02 to +0.1D, and the progressive defocus value along the axis is +0.02 to +0.1D; The initial defocus power corresponding to the 180-axis and 360-axis is +0.07 to +0.26D, and the progressive defocus value along the axis is +0.07 to +0.26D. The initial defocus power corresponding to the 225 axis and 45 axis is +0.01 to +0.26D, and the progressive defocus value along the axis is +0.01 to +0.26D. The initial defocus value corresponding to the 270 axis is +0.01 to +0.33D, and the progressive defocus value along the axis is +0.01 to +0.33D.

9. The multi-axis progressive defocusing lens according to any one of claims 1 to 8, characterized in that, The multi-axis progressive defocus lens is a double-sided aspherical or single-sided aspherical design.

10. A pair of eyeglasses, the eyeglasses comprising a frame and lenses, characterized in that, The lens is made from any one of the multi-axis progressive defocusing lenses according to claims 1-9.

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